aboutsummaryrefslogtreecommitdiff
path: root/net/mac80211
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/Kconfig26
-rw-r--r--net/mac80211/Makefile7
-rw-r--r--net/mac80211/cfg.c201
-rw-r--r--net/mac80211/debugfs.c4
-rw-r--r--net/mac80211/debugfs_key.c3
-rw-r--r--net/mac80211/debugfs_netdev.c78
-rw-r--r--net/mac80211/debugfs_sta.c24
-rw-r--r--net/mac80211/event.c5
-rw-r--r--net/mac80211/ht.c992
-rw-r--r--net/mac80211/ieee80211_i.h399
-rw-r--r--net/mac80211/iface.c620
-rw-r--r--net/mac80211/key.c22
-rw-r--r--net/mac80211/main.c1003
-rw-r--r--net/mac80211/mesh.c368
-rw-r--r--net/mac80211/mesh.h80
-rw-r--r--net/mac80211/mesh_hwmp.c230
-rw-r--r--net/mac80211/mesh_pathtbl.c211
-rw-r--r--net/mac80211/mesh_plink.c98
-rw-r--r--net/mac80211/mlme.c3923
-rw-r--r--net/mac80211/rate.c71
-rw-r--r--net/mac80211/rate.h116
-rw-r--r--net/mac80211/rc80211_minstrel.c583
-rw-r--r--net/mac80211/rc80211_minstrel.h85
-rw-r--r--net/mac80211/rc80211_minstrel_debugfs.c164
-rw-r--r--net/mac80211/rc80211_pid.h4
-rw-r--r--net/mac80211/rc80211_pid_algo.c191
-rw-r--r--net/mac80211/rx.c372
-rw-r--r--net/mac80211/scan.c938
-rw-r--r--net/mac80211/spectmgmt.c86
-rw-r--r--net/mac80211/sta_info.c107
-rw-r--r--net/mac80211/sta_info.h43
-rw-r--r--net/mac80211/tkip.c2
-rw-r--r--net/mac80211/tx.c334
-rw-r--r--net/mac80211/util.c365
-rw-r--r--net/mac80211/wep.c17
-rw-r--r--net/mac80211/wext.c167
-rw-r--r--net/mac80211/wme.c14
-rw-r--r--net/mac80211/wme.h3
-rw-r--r--net/mac80211/wpa.c10
39 files changed, 6657 insertions, 5309 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 80d693392b0..7f710a27e91 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -22,6 +22,11 @@ config MAC80211_RC_PID
mac80211 that uses a PID controller to select the TX
rate.
+config MAC80211_RC_MINSTREL
+ bool "Minstrel"
+ ---help---
+ This option enables the 'minstrel' TX rate control algorithm
+
choice
prompt "Default rate control algorithm"
default MAC80211_RC_DEFAULT_PID
@@ -39,11 +44,19 @@ config MAC80211_RC_DEFAULT_PID
default rate control algorithm. You should choose
this unless you know what you are doing.
+config MAC80211_RC_DEFAULT_MINSTREL
+ bool "Minstrel"
+ depends on MAC80211_RC_MINSTREL
+ ---help---
+ Select Minstrel as the default rate control algorithm.
+
+
endchoice
config MAC80211_RC_DEFAULT
string
default "pid" if MAC80211_RC_DEFAULT_PID
+ default "minstrel" if MAC80211_RC_DEFAULT_MINSTREL
default ""
endmenu
@@ -179,19 +192,6 @@ config MAC80211_VERBOSE_MPL_DEBUG
Do not select this option.
-config MAC80211_LOWTX_FRAME_DUMP
- bool "Debug frame dumping"
- depends on MAC80211_DEBUG_MENU
- ---help---
- Selecting this option will cause the stack to
- print a message for each frame that is handed
- to the lowlevel driver for transmission. This
- message includes all MAC addresses and the
- frame control field.
-
- If unsure, say N and insert the debugging code
- you require into the driver you are debugging.
-
config MAC80211_DEBUG_COUNTERS
bool "Extra statistics for TX/RX debugging"
depends on MAC80211_DEBUG_MENU
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index a169b0201d6..31cfd1f89a7 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -7,6 +7,8 @@ mac80211-y := \
sta_info.o \
wep.o \
wpa.o \
+ scan.o \
+ ht.o \
mlme.o \
iface.o \
rate.o \
@@ -15,6 +17,7 @@ mac80211-y := \
aes_ccm.o \
cfg.o \
rx.o \
+ spectmgmt.o \
tx.o \
key.o \
util.o \
@@ -38,4 +41,8 @@ mac80211-$(CONFIG_MAC80211_MESH) += \
rc80211_pid-y := rc80211_pid_algo.o
rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) += rc80211_pid_debugfs.o
+rc80211_minstrel-y := rc80211_minstrel.o
+rc80211_minstrel-$(CONFIG_MAC80211_DEBUGFS) += rc80211_minstrel_debugfs.o
+
mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc80211_pid-y)
+mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 297c257864c..855126a3039 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -17,26 +17,26 @@
#include "rate.h"
#include "mesh.h"
-static enum ieee80211_if_types
-nl80211_type_to_mac80211_type(enum nl80211_iftype type)
+struct ieee80211_hw *wiphy_to_hw(struct wiphy *wiphy)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ return &local->hw;
+}
+EXPORT_SYMBOL(wiphy_to_hw);
+
+static bool nl80211_type_check(enum nl80211_iftype type)
{
switch (type) {
- case NL80211_IFTYPE_UNSPECIFIED:
- return IEEE80211_IF_TYPE_STA;
case NL80211_IFTYPE_ADHOC:
- return IEEE80211_IF_TYPE_IBSS;
case NL80211_IFTYPE_STATION:
- return IEEE80211_IF_TYPE_STA;
case NL80211_IFTYPE_MONITOR:
- return IEEE80211_IF_TYPE_MNTR;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
- return IEEE80211_IF_TYPE_MESH_POINT;
#endif
case NL80211_IFTYPE_WDS:
- return IEEE80211_IF_TYPE_WDS;
+ return true;
default:
- return IEEE80211_IF_TYPE_INVALID;
+ return false;
}
}
@@ -45,17 +45,15 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
struct vif_params *params)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
- enum ieee80211_if_types itype;
struct net_device *dev;
struct ieee80211_sub_if_data *sdata;
int err;
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
+ if (!nl80211_type_check(type))
return -EINVAL;
- err = ieee80211_if_add(local, name, &dev, itype, params);
- if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
+ err = ieee80211_if_add(local, name, &dev, type, params);
+ if (err || type != NL80211_IFTYPE_MONITOR || !flags)
return err;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -66,13 +64,16 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
{
struct net_device *dev;
+ struct ieee80211_sub_if_data *sdata;
/* we're under RTNL */
dev = __dev_get_by_index(&init_net, ifindex);
if (!dev)
return -ENODEV;
- ieee80211_if_remove(dev);
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ ieee80211_if_remove(sdata);
return 0;
}
@@ -81,9 +82,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct net_device *dev;
- enum ieee80211_if_types itype;
struct ieee80211_sub_if_data *sdata;
int ret;
@@ -92,25 +91,24 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
if (!dev)
return -ENODEV;
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
+ if (!nl80211_type_check(type))
return -EINVAL;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ret = ieee80211_if_change_type(sdata, itype);
+ ret = ieee80211_if_change_type(sdata, type);
if (ret)
return ret;
+ if (netif_running(sdata->dev))
+ return -EBUSY;
+
if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
- ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
- params->mesh_id_len,
- params->mesh_id);
+ ieee80211_sdata_set_mesh_id(sdata,
+ params->mesh_id_len,
+ params->mesh_id);
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags)
+ if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
return 0;
sdata->u.mntr_flags = *flags;
@@ -121,16 +119,12 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
u8 key_idx, u8 *mac_addr,
struct key_params *params)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta = NULL;
enum ieee80211_key_alg alg;
struct ieee80211_key *key;
int err;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
switch (params->cipher) {
@@ -175,14 +169,10 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
u8 key_idx, u8 *mac_addr)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
int ret;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
@@ -223,7 +213,6 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
void (*callback)(void *cookie,
struct key_params *params))
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta = NULL;
u8 seq[6] = {0};
@@ -233,9 +222,6 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
u16 iv16;
int err = -ENOENT;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
@@ -311,12 +297,8 @@ static int ieee80211_config_default_key(struct wiphy *wiphy,
struct net_device *dev,
u8 key_idx)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
rcu_read_lock();
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -365,7 +347,7 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
sta = sta_info_get_by_idx(local, idx, dev);
if (sta) {
ret = 0;
- memcpy(mac, sta->addr, ETH_ALEN);
+ memcpy(mac, sta->sta.addr, ETH_ALEN);
sta_set_sinfo(sta, sinfo);
}
@@ -497,16 +479,12 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
struct beacon_parameters *params)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct beacon_data *old;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
old = sdata->u.ap.beacon;
@@ -520,16 +498,12 @@ static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
struct beacon_parameters *params)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct beacon_data *old;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
old = sdata->u.ap.beacon;
@@ -542,16 +516,12 @@ static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct beacon_data *old;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
old = sdata->u.ap.beacon;
@@ -594,7 +564,7 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
* Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
memset(msg->da, 0xff, ETH_ALEN);
- memcpy(msg->sa, sta->addr, ETH_ALEN);
+ memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
msg->len = htons(6);
msg->dsap = 0;
msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
@@ -649,9 +619,9 @@ static void sta_apply_parameters(struct ieee80211_local *local,
*/
if (params->aid) {
- sta->aid = params->aid;
- if (sta->aid > IEEE80211_MAX_AID)
- sta->aid = 0; /* XXX: should this be an error? */
+ sta->sta.aid = params->aid;
+ if (sta->sta.aid > IEEE80211_MAX_AID)
+ sta->sta.aid = 0; /* XXX: should this be an error? */
}
if (params->listen_interval >= 0)
@@ -668,7 +638,12 @@ static void sta_apply_parameters(struct ieee80211_local *local,
rates |= BIT(j);
}
}
- sta->supp_rates[local->oper_channel->band] = rates;
+ sta->sta.supp_rates[local->oper_channel->band] = rates;
+ }
+
+ if (params->ht_capa) {
+ ieee80211_ht_cap_ie_to_ht_info(params->ht_capa,
+ &sta->sta.ht_info);
}
if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
@@ -691,9 +666,6 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
int err;
- if (dev == local->mdev || params->vlan == local->mdev)
- return -EOPNOTSUPP;
-
/* Prevent a race with changing the rate control algorithm */
if (!netif_running(dev))
return -ENETDOWN;
@@ -701,8 +673,8 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
if (params->vlan) {
sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
- if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN &&
- sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+ sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
} else
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -721,7 +693,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
sta_apply_parameters(local, sta, params);
- rate_control_rate_init(sta, local);
+ rate_control_rate_init(sta);
rcu_read_lock();
@@ -732,8 +704,8 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
return err;
}
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN ||
- sdata->vif.type == IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+ sdata->vif.type == NL80211_IFTYPE_AP)
ieee80211_send_layer2_update(sta);
rcu_read_unlock();
@@ -748,9 +720,6 @@ static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (mac) {
@@ -782,9 +751,6 @@ static int ieee80211_change_station(struct wiphy *wiphy,
struct sta_info *sta;
struct ieee80211_sub_if_data *vlansdata;
- if (dev == local->mdev || params->vlan == local->mdev)
- return -EOPNOTSUPP;
-
rcu_read_lock();
/* XXX: get sta belonging to dev */
@@ -797,8 +763,8 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (params->vlan && params->vlan != sta->sdata->dev) {
vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
- if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN &&
- vlansdata->vif.type != IEEE80211_IF_TYPE_AP) {
+ if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+ vlansdata->vif.type != NL80211_IFTYPE_AP) {
rcu_read_unlock();
return -EINVAL;
}
@@ -824,15 +790,12 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
struct sta_info *sta;
int err;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
if (!netif_running(dev))
return -ENETDOWN;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+ if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
return -ENOTSUPP;
rcu_read_lock();
@@ -842,13 +805,13 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
return -ENOENT;
}
- err = mesh_path_add(dst, dev);
+ err = mesh_path_add(dst, sdata);
if (err) {
rcu_read_unlock();
return err;
}
- mpath = mesh_path_lookup(dst, dev);
+ mpath = mesh_path_lookup(dst, sdata);
if (!mpath) {
rcu_read_unlock();
return -ENXIO;
@@ -862,10 +825,12 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
u8 *dst)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
if (dst)
- return mesh_path_del(dst, dev);
+ return mesh_path_del(dst, sdata);
- mesh_path_flush(dev);
+ mesh_path_flush(sdata);
return 0;
}
@@ -878,15 +843,12 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
struct mesh_path *mpath;
struct sta_info *sta;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
if (!netif_running(dev))
return -ENETDOWN;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+ if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
return -ENOTSUPP;
rcu_read_lock();
@@ -897,7 +859,7 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
return -ENOENT;
}
- mpath = mesh_path_lookup(dst, dev);
+ mpath = mesh_path_lookup(dst, sdata);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
@@ -913,7 +875,7 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
struct mpath_info *pinfo)
{
if (mpath->next_hop)
- memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN);
+ memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
else
memset(next_hop, 0, ETH_ALEN);
@@ -952,20 +914,16 @@ static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+ if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
return -ENOTSUPP;
rcu_read_lock();
- mpath = mesh_path_lookup(dst, dev);
+ mpath = mesh_path_lookup(dst, sdata);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
@@ -980,20 +938,16 @@ static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *dst, u8 *next_hop,
struct mpath_info *pinfo)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
- if (dev == local->mdev)
- return -EOPNOTSUPP;
-
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+ if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
return -ENOTSUPP;
rcu_read_lock();
- mpath = mesh_path_lookup_by_idx(idx, dev);
+ mpath = mesh_path_lookup_by_idx(idx, sdata);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
@@ -1005,6 +959,38 @@ static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
}
#endif
+static int ieee80211_change_bss(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct bss_parameters *params)
+{
+ struct ieee80211_sub_if_data *sdata;
+ u32 changed = 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
+ return -EINVAL;
+
+ if (params->use_cts_prot >= 0) {
+ sdata->bss_conf.use_cts_prot = params->use_cts_prot;
+ changed |= BSS_CHANGED_ERP_CTS_PROT;
+ }
+ if (params->use_short_preamble >= 0) {
+ sdata->bss_conf.use_short_preamble =
+ params->use_short_preamble;
+ changed |= BSS_CHANGED_ERP_PREAMBLE;
+ }
+ if (params->use_short_slot_time >= 0) {
+ sdata->bss_conf.use_short_slot =
+ params->use_short_slot_time;
+ changed |= BSS_CHANGED_ERP_SLOT;
+ }
+
+ ieee80211_bss_info_change_notify(sdata, changed);
+
+ return 0;
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1028,4 +1014,5 @@ struct cfg80211_ops mac80211_config_ops = {
.get_mpath = ieee80211_get_mpath,
.dump_mpath = ieee80211_dump_mpath,
#endif
+ .change_bss = ieee80211_change_bss,
};
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index ee509f1109e..24ce5446331 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -51,8 +51,6 @@ DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
local->hw.conf.antenna_sel_tx);
DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
local->hw.conf.antenna_sel_rx);
-DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
- local->bridge_packets);
DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
local->rts_threshold);
DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
@@ -206,7 +204,6 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(frequency);
DEBUGFS_ADD(antenna_sel_tx);
DEBUGFS_ADD(antenna_sel_rx);
- DEBUGFS_ADD(bridge_packets);
DEBUGFS_ADD(rts_threshold);
DEBUGFS_ADD(fragmentation_threshold);
DEBUGFS_ADD(short_retry_limit);
@@ -263,7 +260,6 @@ void debugfs_hw_del(struct ieee80211_local *local)
DEBUGFS_DEL(frequency);
DEBUGFS_DEL(antenna_sel_tx);
DEBUGFS_DEL(antenna_sel_rx);
- DEBUGFS_DEL(bridge_packets);
DEBUGFS_DEL(rts_threshold);
DEBUGFS_DEL(fragmentation_threshold);
DEBUGFS_DEL(short_retry_limit);
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index cf82acec913..a3294d10932 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -206,7 +206,8 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
rcu_read_lock();
sta = rcu_dereference(key->sta);
if (sta)
- sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr));
+ sprintf(buf, "../../stations/%s",
+ print_mac(mac, sta->sta.addr));
rcu_read_unlock();
/* using sta as a boolean is fine outside RCU lock */
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 8165df578c9..2ad504fc341 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -173,7 +173,6 @@ IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
-IEEE80211_IF_FILE(num_beacons_sta, u.sta.num_beacons, DEC);
static ssize_t ieee80211_if_fmt_flags(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
@@ -192,7 +191,6 @@ __IEEE80211_IF_FILE(flags);
/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
-IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
static ssize_t ieee80211_if_fmt_num_buffered_multicast(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
@@ -207,37 +205,37 @@ IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
#ifdef CONFIG_MAC80211_MESH
/* Mesh stats attributes */
-IEEE80211_IF_FILE(fwded_frames, u.sta.mshstats.fwded_frames, DEC);
-IEEE80211_IF_FILE(dropped_frames_ttl, u.sta.mshstats.dropped_frames_ttl, DEC);
+IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
+IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
IEEE80211_IF_FILE(dropped_frames_no_route,
- u.sta.mshstats.dropped_frames_no_route, DEC);
-IEEE80211_IF_FILE(estab_plinks, u.sta.mshstats.estab_plinks, ATOMIC);
+ u.mesh.mshstats.dropped_frames_no_route, DEC);
+IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
/* Mesh parameters */
IEEE80211_IF_WFILE(dot11MeshMaxRetries,
- u.sta.mshcfg.dot11MeshMaxRetries, DEC, u8);
+ u.mesh.mshcfg.dot11MeshMaxRetries, DEC, u8);
IEEE80211_IF_WFILE(dot11MeshRetryTimeout,
- u.sta.mshcfg.dot11MeshRetryTimeout, DEC, u16);
+ u.mesh.mshcfg.dot11MeshRetryTimeout, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshConfirmTimeout,
- u.sta.mshcfg.dot11MeshConfirmTimeout, DEC, u16);
+ u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHoldingTimeout,
- u.sta.mshcfg.dot11MeshHoldingTimeout, DEC, u16);
-IEEE80211_IF_WFILE(dot11MeshTTL, u.sta.mshcfg.dot11MeshTTL, DEC, u8);
-IEEE80211_IF_WFILE(auto_open_plinks, u.sta.mshcfg.auto_open_plinks, DEC, u8);
+ u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC, u8);
+IEEE80211_IF_WFILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC, u8);
IEEE80211_IF_WFILE(dot11MeshMaxPeerLinks,
- u.sta.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);
+ u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPactivePathTimeout,
- u.sta.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);
+ u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);
IEEE80211_IF_WFILE(dot11MeshHWMPpreqMinInterval,
- u.sta.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);
+ u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPnetDiameterTraversalTime,
- u.sta.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);
+ u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPmaxPREQretries,
- u.sta.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);
+ u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);
IEEE80211_IF_WFILE(path_refresh_time,
- u.sta.mshcfg.path_refresh_time, DEC, u32);
+ u.mesh.mshcfg.path_refresh_time, DEC, u32);
IEEE80211_IF_WFILE(min_discovery_timeout,
- u.sta.mshcfg.min_discovery_timeout, DEC, u16);
+ u.mesh.mshcfg.min_discovery_timeout, DEC, u16);
#endif
@@ -265,7 +263,6 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(auth_alg, sta);
DEBUGFS_ADD(auth_transaction, sta);
DEBUGFS_ADD(flags, sta);
- DEBUGFS_ADD(num_beacons_sta, sta);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
@@ -276,7 +273,6 @@ static void add_ap_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(num_sta_ps, ap);
DEBUGFS_ADD(dtim_count, ap);
- DEBUGFS_ADD(num_beacons, ap);
DEBUGFS_ADD(num_buffered_multicast, ap);
}
@@ -345,26 +341,26 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
return;
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
add_mesh_stats(sdata);
add_mesh_config(sdata);
#endif
- /* fall through */
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
add_sta_files(sdata);
break;
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP:
add_ap_files(sdata);
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
add_wds_files(sdata);
break;
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_MONITOR:
add_monitor_files(sdata);
break;
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP_VLAN:
add_vlan_files(sdata);
break;
default:
@@ -398,7 +394,6 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_DEL(auth_alg, sta);
DEBUGFS_DEL(auth_transaction, sta);
DEBUGFS_DEL(flags, sta);
- DEBUGFS_DEL(num_beacons_sta, sta);
}
static void del_ap_files(struct ieee80211_sub_if_data *sdata)
@@ -409,7 +404,6 @@ static void del_ap_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_DEL(num_sta_ps, ap);
DEBUGFS_DEL(dtim_count, ap);
- DEBUGFS_DEL(num_beacons, ap);
DEBUGFS_DEL(num_buffered_multicast, ap);
}
@@ -482,26 +476,26 @@ static void del_files(struct ieee80211_sub_if_data *sdata)
return;
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
del_mesh_stats(sdata);
del_mesh_config(sdata);
#endif
- /* fall through */
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
del_sta_files(sdata);
break;
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP:
del_ap_files(sdata);
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
del_wds_files(sdata);
break;
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_MONITOR:
del_monitor_files(sdata);
break;
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP_VLAN:
del_vlan_files(sdata);
break;
default:
@@ -551,8 +545,12 @@ static int netdev_notify(struct notifier_block *nb,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sprintf(buf, "netdev:%s", dev->name);
dir = sdata->debugfsdir;
+
+ if (!dir)
+ return 0;
+
+ sprintf(buf, "netdev:%s", dev->name);
if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
"dir to %s\n", buf);
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 79a062782d5..189d0bafa91 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -50,7 +50,7 @@ static const struct file_operations sta_ ##name## _ops = { \
STA_READ_##format(name, field) \
STA_OPS(name)
-STA_FILE(aid, aid, D);
+STA_FILE(aid, sta.aid, D);
STA_FILE(dev, sdata->dev->name, S);
STA_FILE(rx_packets, rx_packets, LU);
STA_FILE(tx_packets, tx_packets, LU);
@@ -173,10 +173,9 @@ static ssize_t sta_agg_status_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct sta_info *sta = file->private_data;
- struct net_device *dev = sta->sdata->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sta->sdata->local;
struct ieee80211_hw *hw = &local->hw;
- u8 *da = sta->addr;
+ u8 *da = sta->sta.addr;
static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
@@ -201,7 +200,7 @@ static ssize_t sta_agg_status_write(struct file *file,
tid_num = tid_num - 100;
if (tid_static_rx[tid_num] == 1) {
strcpy(state, "off ");
- ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
+ ieee80211_sta_stop_rx_ba_session(sta->sdata, da, tid_num, 0,
WLAN_REASON_QSTA_REQUIRE_SETUP);
sta->ampdu_mlme.tid_state_rx[tid_num] |=
HT_AGG_STATE_DEBUGFS_CTL;
@@ -250,11 +249,22 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DECLARE_MAC_BUF(mbuf);
u8 *mac;
+ sta->debugfs.add_has_run = true;
+
if (!stations_dir)
return;
- mac = print_mac(mbuf, sta->addr);
-
+ mac = print_mac(mbuf, sta->sta.addr);
+
+ /*
+ * This might fail due to a race condition:
+ * When mac80211 unlinks a station, the debugfs entries
+ * remain, but it is already possible to link a new
+ * station with the same address which triggers adding
+ * it to debugfs; therefore, if the old station isn't
+ * destroyed quickly enough the old station's debugfs
+ * dir might still be around.
+ */
sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
if (!sta->debugfs.dir)
return;
diff --git a/net/mac80211/event.c b/net/mac80211/event.c
index 2280f40b456..8de60de70bc 100644
--- a/net/mac80211/event.c
+++ b/net/mac80211/event.c
@@ -8,7 +8,6 @@
* mac80211 - events
*/
-#include <linux/netdevice.h>
#include <net/iw_handler.h>
#include "ieee80211_i.h"
@@ -17,7 +16,7 @@
* (in the variable hdr) must be long enough to extract the TKIP
* fields like TSC
*/
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr)
{
union iwreq_data wrqu;
@@ -32,7 +31,7 @@ void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
print_mac(mac, hdr->addr2));
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+ wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
kfree(buf);
}
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
new file mode 100644
index 00000000000..dc7d9a3d70d
--- /dev/null
+++ b/net/mac80211/ht.c
@@ -0,0 +1,992 @@
+/*
+ * HT handling
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007-2008, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "wme.h"
+
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+ struct ieee80211_ht_info *ht_info)
+{
+
+ if (ht_info == NULL)
+ return -EINVAL;
+
+ memset(ht_info, 0, sizeof(*ht_info));
+
+ if (ht_cap_ie) {
+ u8 ampdu_info = ht_cap_ie->ampdu_params_info;
+
+ ht_info->ht_supported = 1;
+ ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
+ ht_info->ampdu_factor =
+ ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
+ ht_info->ampdu_density =
+ (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
+ memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
+ } else
+ ht_info->ht_supported = 0;
+
+ return 0;
+}
+
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ struct ieee80211_ht_addt_info *ht_add_info_ie,
+ struct ieee80211_ht_bss_info *bss_info)
+{
+ if (bss_info == NULL)
+ return -EINVAL;
+
+ memset(bss_info, 0, sizeof(*bss_info));
+
+ if (ht_add_info_ie) {
+ u16 op_mode;
+ op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
+
+ bss_info->primary_channel = ht_add_info_ie->control_chan;
+ bss_info->bss_cap = ht_add_info_ie->ht_param;
+ bss_info->bss_op_mode = (u8)(op_mode & 0xff);
+ }
+
+ return 0;
+}
+
+static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
+ const u8 *da, u16 tid,
+ u8 dialog_token, u16 start_seq_num,
+ u16 agg_size, u16 timeout)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u16 capab;
+
+ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer "
+ "for addba request frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+ else
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
+
+ mgmt->u.action.category = WLAN_CATEGORY_BACK;
+ mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
+
+ mgmt->u.action.u.addba_req.dialog_token = dialog_token;
+ capab = (u16)(1 << 1); /* bit 1 aggregation policy */
+ capab |= (u16)(tid << 2); /* bit 5:2 TID number */
+ capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */
+
+ mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
+
+ mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
+ mgmt->u.action.u.addba_req.start_seq_num =
+ cpu_to_le16(start_seq_num << 4);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid,
+ u8 dialog_token, u16 status, u16 policy,
+ u16 buf_size, u16 timeout)
+{
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u16 capab;
+
+ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer "
+ "for addba resp frame\n", sdata->dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+ else
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
+ mgmt->u.action.category = WLAN_CATEGORY_BACK;
+ mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
+ mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
+
+ capab = (u16)(policy << 1); /* bit 1 aggregation policy */
+ capab |= (u16)(tid << 2); /* bit 5:2 TID number */
+ capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */
+
+ mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
+ mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
+ mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
+ const u8 *da, u16 tid,
+ u16 initiator, u16 reason_code)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u16 params;
+
+ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer "
+ "for delba frame\n", sdata->dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+ else
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
+
+ mgmt->u.action.category = WLAN_CATEGORY_BACK;
+ mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
+ params = (u16)(initiator << 11); /* bit 11 initiator */
+ params |= (u16)(tid << 12); /* bit 15:12 TID number */
+
+ mgmt->u.action.u.delba.params = cpu_to_le16(params);
+ mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct ieee80211_bar *bar;
+ u16 bar_control = 0;
+
+ skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom);
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer for "
+ "bar frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar));
+ memset(bar, 0, sizeof(*bar));
+ bar->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
+ IEEE80211_STYPE_BACK_REQ);
+ memcpy(bar->ra, ra, ETH_ALEN);
+ memcpy(bar->ta, sdata->dev->dev_addr, ETH_ALEN);
+ bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL;
+ bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA;
+ bar_control |= (u16)(tid << 12);
+ bar->control = cpu_to_le16(bar_control);
+ bar->start_seq_num = cpu_to_le16(ssn);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
+ u16 initiator, u16 reason)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_hw *hw = &local->hw;
+ struct sta_info *sta;
+ int ret, i;
+ DECLARE_MAC_BUF(mac);
+
+ rcu_read_lock();
+
+ sta = sta_info_get(local, ra);
+ if (!sta) {
+ rcu_read_unlock();
+ return;
+ }
+
+ /* check if TID is in operational state */
+ spin_lock_bh(&sta->lock);
+ if (sta->ampdu_mlme.tid_state_rx[tid]
+ != HT_AGG_STATE_OPERATIONAL) {
+ spin_unlock_bh(&sta->lock);
+ rcu_read_unlock();
+ return;
+ }
+ sta->ampdu_mlme.tid_state_rx[tid] =
+ HT_AGG_STATE_REQ_STOP_BA_MSK |
+ (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+ spin_unlock_bh(&sta->lock);
+
+ /* stop HW Rx aggregation. ampdu_action existence
+ * already verified in session init so we add the BUG_ON */
+ BUG_ON(!local->ops->ampdu_action);
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n",
+ print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
+ &sta->sta, tid, NULL);
+ if (ret)
+ printk(KERN_DEBUG "HW problem - can not stop rx "
+ "aggregation for tid %d\n", tid);
+
+ /* shutdown timer has not expired */
+ if (initiator != WLAN_BACK_TIMER)
+ del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
+
+ /* check if this is a self generated aggregation halt */
+ if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
+ ieee80211_send_delba(sdata, ra, tid, 0, reason);
+
+ /* free the reordering buffer */
+ for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
+ if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) {
+ /* release the reordered frames */
+ dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]);
+ sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--;
+ sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL;
+ }
+ }
+ /* free resources */
+ kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
+ kfree(sta->ampdu_mlme.tid_rx[tid]);
+ sta->ampdu_mlme.tid_rx[tid] = NULL;
+ sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
+
+ rcu_read_unlock();
+}
+
+
+/*
+ * After sending add Block Ack request we activated a timer until
+ * add Block Ack response will arrive from the recipient.
+ * If this timer expires sta_addba_resp_timer_expired will be executed.
+ */
+static void sta_addba_resp_timer_expired(unsigned long data)
+{
+ /* not an elegant detour, but there is no choice as the timer passes
+ * only one argument, and both sta_info and TID are needed, so init
+ * flow in sta_info_create gives the TID as data, while the timer_to_id
+ * array gives the sta through container_of */
+ u16 tid = *(u8 *)data;
+ struct sta_info *temp_sta = container_of((void *)data,
+ struct sta_info, timer_to_tid[tid]);
+
+ struct ieee80211_local *local = temp_sta->local;
+ struct ieee80211_hw *hw = &local->hw;
+ struct sta_info *sta;
+ u8 *state;
+
+ rcu_read_lock();
+
+ sta = sta_info_get(local, temp_sta->sta.addr);
+ if (!sta) {
+ rcu_read_unlock();
+ return;
+ }
+
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+ /* check if the TID waits for addBA response */
+ spin_lock_bh(&sta->lock);
+ if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+ spin_unlock_bh(&sta->lock);
+ *state = HT_AGG_STATE_IDLE;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "timer expired on tid %d but we are not "
+ "expecting addBA response there", tid);
+#endif
+ goto timer_expired_exit;
+ }
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
+#endif
+
+ /* go through the state check in stop_BA_session */
+ *state = HT_AGG_STATE_OPERATIONAL;
+ spin_unlock_bh(&sta->lock);
+ ieee80211_stop_tx_ba_session(hw, temp_sta->sta.addr, tid,
+ WLAN_BACK_INITIATOR);
+
+timer_expired_exit:
+ rcu_read_unlock();
+}
+
+void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr)
+{
+ struct ieee80211_local *local = sdata->local;
+ int i;
+
+ for (i = 0; i < STA_TID_NUM; i++) {
+ ieee80211_stop_tx_ba_session(&local->hw, addr, i,
+ WLAN_BACK_INITIATOR);
+ ieee80211_sta_stop_rx_ba_session(sdata, addr, i,
+ WLAN_BACK_RECIPIENT,
+ WLAN_REASON_QSTA_LEAVE_QBSS);
+ }
+}
+
+int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata;
+ u16 start_seq_num;
+ u8 *state;
+ int ret;
+ DECLARE_MAC_BUF(mac);
+
+ if (tid >= STA_TID_NUM)
+ return -EINVAL;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
+ print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ rcu_read_lock();
+
+ sta = sta_info_get(local, ra);
+ if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Could not find the station\n");
+#endif
+ ret = -ENOENT;
+ goto exit;
+ }
+
+ spin_lock_bh(&sta->lock);
+
+ /* we have tried too many times, receiver does not want A-MPDU */
+ if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
+ ret = -EBUSY;
+ goto err_unlock_sta;
+ }
+
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+ /* check if the TID is not in aggregation flow already */
+ if (*state != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "BA request denied - session is not "
+ "idle on tid %u\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ ret = -EAGAIN;
+ goto err_unlock_sta;
+ }
+
+ /* prepare A-MPDU MLME for Tx aggregation */
+ sta->ampdu_mlme.tid_tx[tid] =
+ kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
+ if (!sta->ampdu_mlme.tid_tx[tid]) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
+ tid);
+#endif
+ ret = -ENOMEM;
+ goto err_unlock_sta;
+ }
+ /* Tx timer */
+ sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
+ sta_addba_resp_timer_expired;
+ sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data =
+ (unsigned long)&sta->timer_to_tid[tid];
+ init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+
+ /* create a new queue for this aggregation */
+ ret = ieee80211_ht_agg_queue_add(local, sta, tid);
+
+ /* case no queue is available to aggregation
+ * don't switch to aggregation */
+ if (ret) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "BA request denied - queue unavailable for"
+ " tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ goto err_unlock_queue;
+ }
+ sdata = sta->sdata;
+
+ /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
+ * call back right away, it must see that the flow has begun */
+ *state |= HT_ADDBA_REQUESTED_MSK;
+
+ /* This is slightly racy because the queue isn't stopped */
+ start_seq_num = sta->tid_seq[tid];
+
+ if (local->ops->ampdu_action)
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
+ &sta->sta, tid, &start_seq_num);
+
+ if (ret) {
+ /* No need to requeue the packets in the agg queue, since we
+ * held the tx lock: no packet could be enqueued to the newly
+ * allocated queue */
+ ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "BA request denied - HW unavailable for"
+ " tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ *state = HT_AGG_STATE_IDLE;
+ goto err_unlock_queue;
+ }
+
+ /* Will put all the packets in the new SW queue */
+ ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
+ spin_unlock_bh(&sta->lock);
+
+ /* send an addBA request */
+ sta->ampdu_mlme.dialog_token_allocator++;
+ sta->ampdu_mlme.tid_tx[tid]->dialog_token =
+ sta->ampdu_mlme.dialog_token_allocator;
+ sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
+
+
+ ieee80211_send_addba_request(sta->sdata, ra, tid,
+ sta->ampdu_mlme.tid_tx[tid]->dialog_token,
+ sta->ampdu_mlme.tid_tx[tid]->ssn,
+ 0x40, 5000);
+ /* activate the timer for the recipient's addBA response */
+ sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
+ jiffies + ADDBA_RESP_INTERVAL;
+ add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
+#endif
+ goto exit;
+
+err_unlock_queue:
+ kfree(sta->ampdu_mlme.tid_tx[tid]);
+ sta->ampdu_mlme.tid_tx[tid] = NULL;
+ ret = -EBUSY;
+err_unlock_sta:
+ spin_unlock_bh(&sta->lock);
+exit:
+ rcu_read_unlock();
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
+
+int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
+ u8 *ra, u16 tid,
+ enum ieee80211_back_parties initiator)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sta_info *sta;
+ u8 *state;
+ int ret = 0;
+ DECLARE_MAC_BUF(mac);
+
+ if (tid >= STA_TID_NUM)
+ return -EINVAL;
+
+ rcu_read_lock();
+ sta = sta_info_get(local, ra);
+ if (!sta) {
+ rcu_read_unlock();
+ return -ENOENT;
+ }
+
+ /* check if the TID is in aggregation */
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+ spin_lock_bh(&sta->lock);
+
+ if (*state != HT_AGG_STATE_OPERATIONAL) {
+ ret = -ENOENT;
+ goto stop_BA_exit;
+ }
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n",
+ print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
+
+ *state = HT_AGG_STATE_REQ_STOP_BA_MSK |
+ (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+
+ if (local->ops->ampdu_action)
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
+ &sta->sta, tid, NULL);
+
+ /* case HW denied going back to legacy */
+ if (ret) {
+ WARN_ON(ret != -EBUSY);
+ *state = HT_AGG_STATE_OPERATIONAL;
+ ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+ goto stop_BA_exit;
+ }
+
+stop_BA_exit:
+ spin_unlock_bh(&sta->lock);
+ rcu_read_unlock();
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
+
+void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sta_info *sta;
+ u8 *state;
+ DECLARE_MAC_BUF(mac);
+
+ if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+ tid, STA_TID_NUM);
+#endif
+ return;
+ }
+
+ rcu_read_lock();
+ sta = sta_info_get(local, ra);
+ if (!sta) {
+ rcu_read_unlock();
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Could not find station: %s\n",
+ print_mac(mac, ra));
+#endif
+ return;
+ }
+
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+ spin_lock_bh(&sta->lock);
+
+ if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
+ *state);
+#endif
+ spin_unlock_bh(&sta->lock);
+ rcu_read_unlock();
+ return;
+ }
+
+ WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
+
+ *state |= HT_ADDBA_DRV_READY_MSK;
+
+ if (*state == HT_AGG_STATE_OPERATIONAL) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
+#endif
+ ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+ }
+ spin_unlock_bh(&sta->lock);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
+
+void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sta_info *sta;
+ u8 *state;
+ int agg_queue;
+ DECLARE_MAC_BUF(mac);
+
+ if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+ tid, STA_TID_NUM);
+#endif
+ return;
+ }
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n",
+ print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ rcu_read_lock();
+ sta = sta_info_get(local, ra);
+ if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Could not find station: %s\n",
+ print_mac(mac, ra));
+#endif
+ rcu_read_unlock();
+ return;
+ }
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+ /* NOTE: no need to use sta->lock in this state check, as
+ * ieee80211_stop_tx_ba_session will let only one stop call to
+ * pass through per sta/tid
+ */
+ if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
+#endif
+ rcu_read_unlock();
+ return;
+ }
+
+ if (*state & HT_AGG_STATE_INITIATOR_MSK)
+ ieee80211_send_delba(sta->sdata, ra, tid,
+ WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
+
+ agg_queue = sta->tid_to_tx_q[tid];
+
+ ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+
+ /* We just requeued the all the frames that were in the
+ * removed queue, and since we might miss a softirq we do
+ * netif_schedule_queue. ieee80211_wake_queue is not used
+ * here as this queue is not necessarily stopped
+ */
+ netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
+ spin_lock_bh(&sta->lock);
+ *state = HT_AGG_STATE_IDLE;
+ sta->ampdu_mlme.addba_req_num[tid] = 0;
+ kfree(sta->ampdu_mlme.tid_tx[tid]);
+ sta->ampdu_mlme.tid_tx[tid] = NULL;
+ spin_unlock_bh(&sta->lock);
+
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
+
+void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+ const u8 *ra, u16 tid)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_ra_tid *ra_tid;
+ struct sk_buff *skb = dev_alloc_skb(0);
+
+ if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_WARNING "%s: Not enough memory, "
+ "dropping start BA session", skb->dev->name);
+#endif
+ return;
+ }
+ ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+ memcpy(&ra_tid->ra, ra, ETH_ALEN);
+ ra_tid->tid = tid;
+
+ skb->pkt_type = IEEE80211_ADDBA_MSG;
+ skb_queue_tail(&local->skb_queue, skb);
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
+
+void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+ const u8 *ra, u16 tid)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_ra_tid *ra_tid;
+ struct sk_buff *skb = dev_alloc_skb(0);
+
+ if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_WARNING "%s: Not enough memory, "
+ "dropping stop BA session", skb->dev->name);
+#endif
+ return;
+ }
+ ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+ memcpy(&ra_tid->ra, ra, ETH_ALEN);
+ ra_tid->tid = tid;
+
+ skb->pkt_type = IEEE80211_DELBA_MSG;
+ skb_queue_tail(&local->skb_queue, skb);
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
+
+/*
+ * After accepting the AddBA Request we activated a timer,
+ * resetting it after each frame that arrives from the originator.
+ * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
+ */
+static void sta_rx_agg_session_timer_expired(unsigned long data)
+{
+ /* not an elegant detour, but there is no choice as the timer passes
+ * only one argument, and various sta_info are needed here, so init
+ * flow in sta_info_create gives the TID as data, while the timer_to_id
+ * array gives the sta through container_of */
+ u8 *ptid = (u8 *)data;
+ u8 *timer_to_id = ptid - *ptid;
+ struct sta_info *sta = container_of(timer_to_id, struct sta_info,
+ timer_to_tid[0]);
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
+#endif
+ ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->sta.addr,
+ (u16)*ptid, WLAN_BACK_TIMER,
+ WLAN_REASON_QSTA_TIMEOUT);
+}
+
+void ieee80211_process_addba_request(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ struct ieee80211_hw *hw = &local->hw;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct tid_ampdu_rx *tid_agg_rx;
+ u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
+ u8 dialog_token;
+ int ret = -EOPNOTSUPP;
+ DECLARE_MAC_BUF(mac);
+
+ /* extract session parameters from addba request frame */
+ dialog_token = mgmt->u.action.u.addba_req.dialog_token;
+ timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
+ start_seq_num =
+ le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
+
+ capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
+ ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
+ tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+ buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
+
+ status = WLAN_STATUS_REQUEST_DECLINED;
+
+ /* sanity check for incoming parameters:
+ * check if configuration can support the BA policy
+ * and if buffer size does not exceeds max value */
+ if (((ba_policy != 1)
+ && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
+ || (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
+ status = WLAN_STATUS_INVALID_QOS_PARAM;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "AddBA Req with bad params from "
+ "%s on tid %u. policy %d, buffer size %d\n",
+ print_mac(mac, mgmt->sa), tid, ba_policy,
+ buf_size);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ goto end_no_lock;
+ }
+ /* determine default buffer size */
+ if (buf_size == 0) {
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[conf->channel->band];
+ buf_size = IEEE80211_MIN_AMPDU_BUF;
+ buf_size = buf_size << sband->ht_info.ampdu_factor;
+ }
+
+
+ /* examine state machine */
+ spin_lock_bh(&sta->lock);
+
+ if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "unexpected AddBA Req from "
+ "%s on tid %u\n",
+ print_mac(mac, mgmt->sa), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ goto end;
+ }
+
+ /* prepare A-MPDU MLME for Rx aggregation */
+ sta->ampdu_mlme.tid_rx[tid] =
+ kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
+ if (!sta->ampdu_mlme.tid_rx[tid]) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
+ tid);
+#endif
+ goto end;
+ }
+ /* rx timer */
+ sta->ampdu_mlme.tid_rx[tid]->session_timer.function =
+ sta_rx_agg_session_timer_expired;
+ sta->ampdu_mlme.tid_rx[tid]->session_timer.data =
+ (unsigned long)&sta->timer_to_tid[tid];
+ init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
+
+ tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
+ /* prepare reordering buffer */
+ tid_agg_rx->reorder_buf =
+ kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
+ if (!tid_agg_rx->reorder_buf) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_ERR "can not allocate reordering buffer "
+ "to tid %d\n", tid);
+#endif
+ kfree(sta->ampdu_mlme.tid_rx[tid]);
+ goto end;
+ }
+ memset(tid_agg_rx->reorder_buf, 0,
+ buf_size * sizeof(struct sk_buff *));
+
+ if (local->ops->ampdu_action)
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
+ &sta->sta, tid, &start_seq_num);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ if (ret) {
+ kfree(tid_agg_rx->reorder_buf);
+ kfree(tid_agg_rx);
+ sta->ampdu_mlme.tid_rx[tid] = NULL;
+ goto end;
+ }
+
+ /* change state and send addba resp */
+ sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL;
+ tid_agg_rx->dialog_token = dialog_token;
+ tid_agg_rx->ssn = start_seq_num;
+ tid_agg_rx->head_seq_num = start_seq_num;
+ tid_agg_rx->buf_size = buf_size;
+ tid_agg_rx->timeout = timeout;
+ tid_agg_rx->stored_mpdu_num = 0;
+ status = WLAN_STATUS_SUCCESS;
+end:
+ spin_unlock_bh(&sta->lock);
+
+end_no_lock:
+ ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, tid,
+ dialog_token, status, 1, buf_size, timeout);
+}
+
+void ieee80211_process_addba_resp(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ struct ieee80211_hw *hw = &local->hw;
+ u16 capab;
+ u16 tid;
+ u8 *state;
+
+ capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
+ tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+
+ state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+ spin_lock_bh(&sta->lock);
+
+ if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+ spin_unlock_bh(&sta->lock);
+ return;
+ }
+
+ if (mgmt->u.action.u.addba_resp.dialog_token !=
+ sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
+ spin_unlock_bh(&sta->lock);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ return;
+ }
+
+ del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
+ == WLAN_STATUS_SUCCESS) {
+ *state |= HT_ADDBA_RECEIVED_MSK;
+ sta->ampdu_mlme.addba_req_num[tid] = 0;
+
+ if (*state == HT_AGG_STATE_OPERATIONAL)
+ ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+
+ spin_unlock_bh(&sta->lock);
+ } else {
+ sta->ampdu_mlme.addba_req_num[tid]++;
+ /* this will allow the state check in stop_BA_session */
+ *state = HT_AGG_STATE_OPERATIONAL;
+ spin_unlock_bh(&sta->lock);
+ ieee80211_stop_tx_ba_session(hw, sta->sta.addr, tid,
+ WLAN_BACK_INITIATOR);
+ }
+}
+
+void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt, size_t len)
+{
+ struct ieee80211_local *local = sdata->local;
+ u16 tid, params;
+ u16 initiator;
+ DECLARE_MAC_BUF(mac);
+
+ params = le16_to_cpu(mgmt->u.action.u.delba.params);
+ tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
+ initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
+ print_mac(mac, mgmt->sa),
+ initiator ? "initiator" : "recipient", tid,
+ mgmt->u.action.u.delba.reason_code);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ if (initiator == WLAN_BACK_INITIATOR)
+ ieee80211_sta_stop_rx_ba_session(sdata, sta->sta.addr, tid,
+ WLAN_BACK_INITIATOR, 0);
+ else { /* WLAN_BACK_RECIPIENT */
+ spin_lock_bh(&sta->lock);
+ sta->ampdu_mlme.tid_state_tx[tid] =
+ HT_AGG_STATE_OPERATIONAL;
+ spin_unlock_bh(&sta->lock);
+ ieee80211_stop_tx_ba_session(&local->hw, sta->sta.addr, tid,
+ WLAN_BACK_RECIPIENT);
+ }
+}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 4498d871365..156e42a003a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -29,17 +29,6 @@
#include "key.h"
#include "sta_info.h"
-/* ieee80211.o internal definitions, etc. These are not included into
- * low-level drivers. */
-
-#ifndef ETH_P_PAE
-#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
-#endif /* ETH_P_PAE */
-
-#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
-
-#define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
-
struct ieee80211_local;
/* Maximum number of broadcast/multicast frames to buffer when some of the
@@ -61,6 +50,12 @@ struct ieee80211_local;
* increased memory use (about 2 kB of RAM per entry). */
#define IEEE80211_FRAGMENT_MAX 4
+/*
+ * Time after which we ignore scan results and no longer report/use
+ * them in any way.
+ */
+#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
+
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
@@ -73,9 +68,9 @@ struct ieee80211_fragment_entry {
};
-struct ieee80211_sta_bss {
+struct ieee80211_bss {
struct list_head list;
- struct ieee80211_sta_bss *hnext;
+ struct ieee80211_bss *hnext;
size_t ssid_len;
atomic_t users;
@@ -87,16 +82,11 @@ struct ieee80211_sta_bss {
enum ieee80211_band band;
int freq;
int signal, noise, qual;
- u8 *wpa_ie;
- size_t wpa_ie_len;
- u8 *rsn_ie;
- size_t rsn_ie_len;
- u8 *wmm_ie;
- size_t wmm_ie_len;
- u8 *ht_ie;
- size_t ht_ie_len;
- u8 *ht_add_ie;
- size_t ht_add_ie_len;
+ u8 *ies; /* all information elements from the last Beacon or Probe
+ * Response frames; note Beacon frame is not allowed to
+ * override values from Probe Response */
+ size_t ies_len;
+ bool wmm_used;
#ifdef CONFIG_MAC80211_MESH
u8 *mesh_id;
size_t mesh_id_len;
@@ -108,7 +98,7 @@ struct ieee80211_sta_bss {
u64 timestamp;
int beacon_int;
- bool probe_resp;
+ unsigned long last_probe_resp;
unsigned long last_update;
/* during assocation, we save an ERP value from a probe response so
@@ -119,7 +109,7 @@ struct ieee80211_sta_bss {
u8 erp_value;
};
-static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
+static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_cfg;
@@ -127,7 +117,7 @@ static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
return NULL;
}
-static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
+static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_id;
@@ -135,7 +125,7 @@ static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
return NULL;
}
-static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
+static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_id_len;
@@ -174,7 +164,7 @@ struct ieee80211_tx_data {
struct sk_buff **extra_frag;
int num_extra_frag;
- u16 fc, ethertype;
+ u16 ethertype;
unsigned int flags;
};
@@ -202,7 +192,7 @@ struct ieee80211_rx_data {
struct ieee80211_rx_status *status;
struct ieee80211_rate *rate;
- u16 fc, ethertype;
+ u16 ethertype;
unsigned int flags;
int sent_ps_buffered;
int queue;
@@ -239,7 +229,6 @@ struct ieee80211_if_ap {
struct sk_buff_head ps_bc_buf;
atomic_t num_sta_ps; /* number of stations in PS mode */
int dtim_count;
- int num_beacons; /* number of TXed beacon frames for this BSS */
};
struct ieee80211_if_wds {
@@ -300,48 +289,37 @@ struct mesh_config {
#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
+/* flags for MLME request */
+#define IEEE80211_STA_REQ_SCAN 0
+#define IEEE80211_STA_REQ_DIRECT_PROBE 1
+#define IEEE80211_STA_REQ_AUTH 2
+#define IEEE80211_STA_REQ_RUN 3
+
+/* STA/IBSS MLME states */
+enum ieee80211_sta_mlme_state {
+ IEEE80211_STA_MLME_DISABLED,
+ IEEE80211_STA_MLME_DIRECT_PROBE,
+ IEEE80211_STA_MLME_AUTHENTICATE,
+ IEEE80211_STA_MLME_ASSOCIATE,
+ IEEE80211_STA_MLME_ASSOCIATED,
+ IEEE80211_STA_MLME_IBSS_SEARCH,
+ IEEE80211_STA_MLME_IBSS_JOINED,
+};
+
+/* bitfield of allowed auth algs */
+#define IEEE80211_AUTH_ALG_OPEN BIT(0)
+#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
+#define IEEE80211_AUTH_ALG_LEAP BIT(2)
+
struct ieee80211_if_sta {
struct timer_list timer;
struct work_struct work;
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
- enum {
- IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
- IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
- IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
- IEEE80211_MESH_UP
- } state;
+ enum ieee80211_sta_mlme_state state;
size_t ssid_len;
u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
size_t scan_ssid_len;
-#ifdef CONFIG_MAC80211_MESH
- struct timer_list mesh_path_timer;
- u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
- size_t mesh_id_len;
- /* Active Path Selection Protocol Identifier */
- u8 mesh_pp_id[4];
- /* Active Path Selection Metric Identifier */
- u8 mesh_pm_id[4];
- /* Congestion Control Mode Identifier */
- u8 mesh_cc_id[4];
- /* Local mesh Destination Sequence Number */
- u32 dsn;
- /* Last used PREQ ID */
- u32 preq_id;
- atomic_t mpaths;
- /* Timestamp of last DSN update */
- unsigned long last_dsn_update;
- /* Timestamp of last DSN sent */
- unsigned long last_preq;
- struct mesh_rmc *rmc;
- spinlock_t mesh_preq_queue_lock;
- struct mesh_preq_queue preq_queue;
- int preq_queue_len;
- struct mesh_stats mshstats;
- struct mesh_config mshcfg;
- u32 mesh_seqnum;
- bool accepting_plinks;
-#endif
u16 aid;
u16 ap_capab, capab;
u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -353,20 +331,17 @@ struct ieee80211_if_sta {
struct sk_buff_head skb_queue;
- int auth_tries, assoc_tries;
+ int assoc_scan_tries; /* number of scans done pre-association */
+ int direct_probe_tries; /* retries for direct probes */
+ int auth_tries; /* retries for auth req */
+ int assoc_tries; /* retries for assoc req */
unsigned long request;
unsigned long last_probe;
unsigned int flags;
-#define IEEE80211_STA_REQ_SCAN 0
-#define IEEE80211_STA_REQ_AUTH 1
-#define IEEE80211_STA_REQ_RUN 2
-#define IEEE80211_AUTH_ALG_OPEN BIT(0)
-#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
-#define IEEE80211_AUTH_ALG_LEAP BIT(2)
unsigned int auth_algs; /* bitfield of allowed auth algs */
int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
int auth_transaction;
@@ -376,31 +351,70 @@ struct ieee80211_if_sta {
u32 supp_rates_bits[IEEE80211_NUM_BANDS];
int wmm_last_param_set;
- int num_beacons; /* number of TXed beacon frames by this STA */
};
-static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
- u8 mesh_id_len, u8 *mesh_id)
-{
-#ifdef CONFIG_MAC80211_MESH
- ifsta->mesh_id_len = mesh_id_len;
- memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
-#endif
-}
+struct ieee80211_if_mesh {
+ struct work_struct work;
+ struct timer_list housekeeping_timer;
+ struct timer_list mesh_path_timer;
+ struct sk_buff_head skb_queue;
+
+ bool housekeeping;
+
+ u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
+ size_t mesh_id_len;
+ /* Active Path Selection Protocol Identifier */
+ u8 mesh_pp_id[4];
+ /* Active Path Selection Metric Identifier */
+ u8 mesh_pm_id[4];
+ /* Congestion Control Mode Identifier */
+ u8 mesh_cc_id[4];
+ /* Local mesh Destination Sequence Number */
+ u32 dsn;
+ /* Last used PREQ ID */
+ u32 preq_id;
+ atomic_t mpaths;
+ /* Timestamp of last DSN update */
+ unsigned long last_dsn_update;
+ /* Timestamp of last DSN sent */
+ unsigned long last_preq;
+ struct mesh_rmc *rmc;
+ spinlock_t mesh_preq_queue_lock;
+ struct mesh_preq_queue preq_queue;
+ int preq_queue_len;
+ struct mesh_stats mshstats;
+ struct mesh_config mshcfg;
+ u32 mesh_seqnum;
+ bool accepting_plinks;
+};
#ifdef CONFIG_MAC80211_MESH
-#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
- do { (sta)->mshstats.name++; } while (0)
+#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
+ do { (msh)->mshstats.name++; } while (0)
#else
-#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
+#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
do { } while (0)
#endif
-/* flags used in struct ieee80211_sub_if_data.flags */
-#define IEEE80211_SDATA_ALLMULTI BIT(0)
-#define IEEE80211_SDATA_PROMISC BIT(1)
-#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
-#define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
+/**
+ * enum ieee80211_sub_if_data_flags - virtual interface flags
+ *
+ * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
+ * @IEEE80211_SDATA_PROMISC: interface is promisc
+ * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
+ * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
+ * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
+ * associated stations and deliver multicast frames both
+ * back to wireless media and to the local net stack.
+ */
+enum ieee80211_sub_if_data_flags {
+ IEEE80211_SDATA_ALLMULTI = BIT(0),
+ IEEE80211_SDATA_PROMISC = BIT(1),
+ IEEE80211_SDATA_USERSPACE_MLME = BIT(2),
+ IEEE80211_SDATA_OPERATING_GMODE = BIT(3),
+ IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4),
+};
+
struct ieee80211_sub_if_data {
struct list_head list;
@@ -416,11 +430,6 @@ struct ieee80211_sub_if_data {
int drop_unencrypted;
- /*
- * basic rates of this AP or the AP we're associated to
- */
- u64 basic_rates;
-
/* Fragment table for host-based reassembly */
struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
unsigned int fragment_next;
@@ -447,6 +456,9 @@ struct ieee80211_sub_if_data {
struct ieee80211_if_wds wds;
struct ieee80211_if_vlan vlan;
struct ieee80211_if_sta sta;
+#ifdef CONFIG_MAC80211_MESH
+ struct ieee80211_if_mesh mesh;
+#endif
u32 mntr_flags;
} u;
@@ -469,7 +481,6 @@ struct ieee80211_sub_if_data {
struct dentry *auth_alg;
struct dentry *auth_transaction;
struct dentry *flags;
- struct dentry *num_beacons_sta;
struct dentry *force_unicast_rateidx;
struct dentry *max_ratectrl_rateidx;
} sta;
@@ -477,7 +488,6 @@ struct ieee80211_sub_if_data {
struct dentry *drop_unencrypted;
struct dentry *num_sta_ps;
struct dentry *dtim_count;
- struct dentry *num_beacons;
struct dentry *force_unicast_rateidx;
struct dentry *max_ratectrl_rateidx;
struct dentry *num_buffered_multicast;
@@ -540,6 +550,19 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
return container_of(p, struct ieee80211_sub_if_data, vif);
}
+static inline void
+ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
+ u8 mesh_id_len, u8 *mesh_id)
+{
+#ifdef CONFIG_MAC80211_MESH
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ ifmsh->mesh_id_len = mesh_id_len;
+ memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
+#else
+ WARN_ON(1);
+#endif
+}
+
enum {
IEEE80211_RX_MSG = 1,
IEEE80211_TX_STATUS_MSG = 2,
@@ -550,6 +573,10 @@ enum {
/* maximum number of hardware queues we support. */
#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
+struct ieee80211_master_priv {
+ struct ieee80211_local *local;
+};
+
struct ieee80211_local {
/* embed the driver visible part.
* don't cast (use the static inlines below), but we keep
@@ -613,10 +640,6 @@ struct ieee80211_local {
struct crypto_blkcipher *wep_rx_tfm;
u32 wep_iv;
- int bridge_packets; /* bridge packets between associated stations and
- * deliver multicast frames both back to wireless
- * media and to the local net stack */
-
struct list_head interfaces;
/*
@@ -626,21 +649,21 @@ struct ieee80211_local {
spinlock_t key_lock;
- bool sta_sw_scanning;
- bool sta_hw_scanning;
+ /* Scanning and BSS list */
+ bool sw_scanning, hw_scanning;
int scan_channel_idx;
enum ieee80211_band scan_band;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
unsigned long last_scan_completed;
struct delayed_work scan_work;
- struct net_device *scan_dev;
+ struct ieee80211_sub_if_data *scan_sdata;
struct ieee80211_channel *oper_channel, *scan_channel;
u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
size_t scan_ssid_len;
- struct list_head sta_bss_list;
- struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
- spinlock_t sta_bss_lock;
+ struct list_head bss_list;
+ struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
+ spinlock_t bss_lock;
/* SNMP counters */
/* dot11CountersTable */
@@ -701,10 +724,11 @@ struct ieee80211_local {
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
+ struct dentry *rcdir;
+ struct dentry *rcname;
struct dentry *frequency;
struct dentry *antenna_sel_tx;
struct dentry *antenna_sel_rx;
- struct dentry *bridge_packets;
struct dentry *rts_threshold;
struct dentry *fragmentation_threshold;
struct dentry *short_retry_limit;
@@ -774,6 +798,9 @@ struct ieee80211_ra_tid {
/* Parsed Information Elements */
struct ieee802_11_elems {
+ u8 *ie_start;
+ size_t total_len;
+
/* pointers to IEs */
u8 *ssid;
u8 *supp_rates;
@@ -789,8 +816,8 @@ struct ieee802_11_elems {
u8 *ext_supp_rates;
u8 *wmm_info;
u8 *wmm_param;
- u8 *ht_cap_elem;
- u8 *ht_info_elem;
+ struct ieee80211_ht_cap *ht_cap_elem;
+ struct ieee80211_ht_addt_info *ht_info_elem;
u8 *mesh_config;
u8 *mesh_id;
u8 *peer_link;
@@ -817,8 +844,6 @@ struct ieee802_11_elems {
u8 ext_supp_rates_len;
u8 wmm_info_len;
u8 wmm_param_len;
- u8 ht_cap_elem_len;
- u8 ht_info_elem_len;
u8 mesh_config_len;
u8 mesh_id_len;
u8 peer_link_len;
@@ -857,86 +882,82 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
}
-/* ieee80211.c */
int ieee80211_hw_config(struct ieee80211_local *local);
int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
struct ieee80211_ht_info *req_ht_cap,
struct ieee80211_ht_bss_info *req_bss_cap);
+void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
+ u32 changed);
+void ieee80211_configure_filter(struct ieee80211_local *local);
-/* ieee80211_ioctl.c */
+/* wireless extensions */
extern const struct iw_handler_def ieee80211_iw_handler_def;
-int ieee80211_set_freq(struct net_device *dev, int freq);
-/* ieee80211_sta.c */
-void ieee80211_sta_timer(unsigned long data);
-void ieee80211_sta_work(struct work_struct *work);
-void ieee80211_sta_scan_work(struct work_struct *work);
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
+/* STA/IBSS code */
+void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
+void ieee80211_scan_work(struct work_struct *work);
+void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status);
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
-void ieee80211_sta_req_auth(struct net_device *dev,
+int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
+int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
+int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
+void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta);
-int ieee80211_sta_scan_results(struct net_device *dev,
- struct iw_request_info *info,
- char *buf, size_t len);
-ieee80211_rx_result ieee80211_sta_rx_scan(
- struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status);
-void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
-void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
-struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
+struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, u8 *bssid,
u8 *addr, u64 supp_rates);
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
-void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
- u32 changed);
-u32 ieee80211_reset_erp_info(struct net_device *dev);
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
- struct ieee80211_ht_info *ht_info);
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
- struct ieee80211_ht_addt_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info);
-void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
- u16 tid, u8 dialog_token, u16 start_seq_num,
- u16 agg_size, u16 timeout);
-void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
- u16 initiator, u16 reason_code);
-void ieee80211_send_bar(struct net_device *dev, u8 *ra, u16 tid, u16 ssn);
-
-void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
- u16 tid, u16 initiator, u16 reason);
-void sta_addba_resp_timer_expired(unsigned long data);
-void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
+int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
+int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
+u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems,
enum ieee80211_band band);
-void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
- int encrypt);
-void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems);
-
-#ifdef CONFIG_MAC80211_MESH
-void ieee80211_start_mesh(struct net_device *dev);
-#else
-static inline void ieee80211_start_mesh(struct net_device *dev)
-{}
-#endif
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+ u8 *ssid, size_t ssid_len);
+
+/* scan/BSS handling */
+int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
+ u8 *ssid, size_t ssid_len);
+int ieee80211_scan_results(struct ieee80211_local *local,
+ struct iw_request_info *info,
+ char *buf, size_t len);
+ieee80211_rx_result
+ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
+int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
+ char *ie, size_t len);
+
+void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
+int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
+ u8 *ssid, size_t ssid_len);
+struct ieee80211_bss *
+ieee80211_bss_info_update(struct ieee80211_local *local,
+ struct ieee80211_rx_status *rx_status,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee802_11_elems *elems,
+ int freq, bool beacon);
+struct ieee80211_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+ u8 *ssid, u8 ssid_len);
+struct ieee80211_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+ u8 *ssid, u8 ssid_len);
+void ieee80211_rx_bss_put(struct ieee80211_local *local,
+ struct ieee80211_bss *bss);
/* interface handling */
-void ieee80211_if_setup(struct net_device *dev);
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
- struct net_device **new_dev, enum ieee80211_if_types type,
+ struct net_device **new_dev, enum nl80211_iftype type,
struct vif_params *params);
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
- enum ieee80211_if_types type);
-void ieee80211_if_remove(struct net_device *dev);
+ enum nl80211_iftype type);
+void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
void ieee80211_remove_interfaces(struct ieee80211_local *local);
/* tx handling */
@@ -946,16 +967,52 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
+/* HT */
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+ struct ieee80211_ht_info *ht_info);
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ struct ieee80211_ht_addt_info *ht_add_info_ie,
+ struct ieee80211_ht_bss_info *bss_info);
+void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
+
+void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
+ u16 tid, u16 initiator, u16 reason);
+void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
+void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt, size_t len);
+void ieee80211_process_addba_resp(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len);
+void ieee80211_process_addba_request(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len);
+
+/* Spectrum management */
+void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt,
+ size_t len);
+
/* utility functions/constants */
extern void *mac80211_wiphy_privid; /* for wiphy privid */
extern const unsigned char rfc1042_header[6];
extern const unsigned char bridge_tunnel_header[6];
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
- enum ieee80211_if_types type);
+ enum nl80211_iftype type);
int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
int rate, int erp, int short_preamble);
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr);
+void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ int encrypt);
+void ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems);
+int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
+u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
+ enum ieee80211_band band);
#ifdef CONFIG_MAC80211_NOINLINE
#define debug_noinline noinline
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 610ed1d9893..8336fee68d3 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1,4 +1,6 @@
/*
+ * Interface handling (except master interface)
+ *
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
@@ -17,7 +19,539 @@
#include "sta_info.h"
#include "debugfs_netdev.h"
#include "mesh.h"
+#include "led.h"
+
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+{
+ int meshhdrlen;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0;
+
+ /* FIX: what would be proper limits for MTU?
+ * This interface uses 802.3 frames. */
+ if (new_mtu < 256 ||
+ new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
+ return -EINVAL;
+ }
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static inline int identical_mac_addr_allowed(int type1, int type2)
+{
+ return type1 == NL80211_IFTYPE_MONITOR ||
+ type2 == NL80211_IFTYPE_MONITOR ||
+ (type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) ||
+ (type1 == NL80211_IFTYPE_WDS &&
+ (type2 == NL80211_IFTYPE_WDS ||
+ type2 == NL80211_IFTYPE_AP)) ||
+ (type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_AP_VLAN) ||
+ (type1 == NL80211_IFTYPE_AP_VLAN &&
+ (type2 == NL80211_IFTYPE_AP ||
+ type2 == NL80211_IFTYPE_AP_VLAN));
+}
+
+static int ieee80211_open(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_sub_if_data *nsdata;
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
+ struct ieee80211_if_init_conf conf;
+ u32 changed = 0;
+ int res;
+ bool need_hw_reconfig = 0;
+ u8 null_addr[ETH_ALEN] = {0};
+
+ /* fail early if user set an invalid address */
+ if (compare_ether_addr(dev->dev_addr, null_addr) &&
+ !is_valid_ether_addr(dev->dev_addr))
+ return -EADDRNOTAVAIL;
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
+ struct net_device *ndev = nsdata->dev;
+
+ if (ndev != dev && netif_running(ndev)) {
+ /*
+ * Allow only a single IBSS interface to be up at any
+ * time. This is restricted because beacon distribution
+ * cannot work properly if both are in the same IBSS.
+ *
+ * To remove this restriction we'd have to disallow them
+ * from setting the same SSID on different IBSS interfaces
+ * belonging to the same hardware. Then, however, we're
+ * faced with having to adopt two different TSF timers...
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+ nsdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return -EBUSY;
+
+ /*
+ * The remaining checks are only performed for interfaces
+ * with the same MAC address.
+ */
+ if (compare_ether_addr(dev->dev_addr, ndev->dev_addr))
+ continue;
+
+ /*
+ * check whether it may have the same address
+ */
+ if (!identical_mac_addr_allowed(sdata->vif.type,
+ nsdata->vif.type))
+ return -ENOTUNIQ;
+
+ /*
+ * can only add VLANs to enabled APs
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+ nsdata->vif.type == NL80211_IFTYPE_AP)
+ sdata->bss = &nsdata->u.ap;
+ }
+ }
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_WDS:
+ if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
+ return -ENOLINK;
+ break;
+ case NL80211_IFTYPE_AP_VLAN:
+ if (!sdata->bss)
+ return -ENOLINK;
+ list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
+ break;
+ case NL80211_IFTYPE_AP:
+ sdata->bss = &sdata->u.ap;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ if (!ieee80211_vif_is_mesh(&sdata->vif))
+ break;
+ /* mesh ifaces must set allmulti to forward mcast traffic */
+ atomic_inc(&local->iff_allmultis);
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_ADHOC:
+ /* no special treatment */
+ break;
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case __NL80211_IFTYPE_AFTER_LAST:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
+ }
+
+ if (local->open_count == 0) {
+ res = 0;
+ if (local->ops->start)
+ res = local->ops->start(local_to_hw(local));
+ if (res)
+ goto err_del_bss;
+ need_hw_reconfig = 1;
+ ieee80211_led_radio(local, local->hw.conf.radio_enabled);
+ }
+
+ /*
+ * Check all interfaces and copy the hopefully now-present
+ * MAC address to those that have the special null one.
+ */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
+ struct net_device *ndev = nsdata->dev;
+
+ /*
+ * No need to check netif_running since we do not allow
+ * it to start up with this invalid address.
+ */
+ if (compare_ether_addr(null_addr, ndev->dev_addr) == 0)
+ memcpy(ndev->dev_addr,
+ local->hw.wiphy->perm_addr,
+ ETH_ALEN);
+ }
+
+ if (compare_ether_addr(null_addr, local->mdev->dev_addr) == 0)
+ memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr,
+ ETH_ALEN);
+
+ /*
+ * Validate the MAC address for this device.
+ */
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ if (!local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ return -EADDRNOTAVAIL;
+ }
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ /* no need to tell driver */
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
+ local->cooked_mntrs++;
+ break;
+ }
+
+ /* must be before the call to ieee80211_configure_filter */
+ local->monitors++;
+ if (local->monitors == 1)
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+
+ if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+ local->fif_fcsfail++;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
+ local->fif_plcpfail++;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
+ local->fif_control++;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
+ local->fif_other_bss++;
+
+ netif_addr_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_addr_unlock_bh(local->mdev);
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ /* fall through */
+ default:
+ conf.vif = &sdata->vif;
+ conf.type = sdata->vif.type;
+ conf.mac_addr = dev->dev_addr;
+ res = local->ops->add_interface(local_to_hw(local), &conf);
+ if (res)
+ goto err_stop;
+
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ ieee80211_start_mesh(sdata);
+ changed |= ieee80211_reset_erp_info(sdata);
+ ieee80211_bss_info_change_notify(sdata, changed);
+ ieee80211_enable_keys(sdata);
+
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
+ }
+
+ if (sdata->vif.type == NL80211_IFTYPE_WDS) {
+ /* Create STA entry for the WDS peer */
+ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+ GFP_KERNEL);
+ if (!sta) {
+ res = -ENOMEM;
+ goto err_del_interface;
+ }
+
+ /* no locking required since STA is not live yet */
+ sta->flags |= WLAN_STA_AUTHORIZED;
+
+ res = sta_info_insert(sta);
+ if (res) {
+ /* STA has been freed */
+ goto err_del_interface;
+ }
+ }
+
+ if (local->open_count == 0) {
+ res = dev_open(local->mdev);
+ WARN_ON(res);
+ if (res)
+ goto err_del_interface;
+ tasklet_enable(&local->tx_pending_tasklet);
+ tasklet_enable(&local->tasklet);
+ }
+
+ /*
+ * set_multicast_list will be invoked by the networking core
+ * which will check whether any increments here were done in
+ * error and sync them down to the hardware as filter flags.
+ */
+ if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+
+ if (sdata->flags & IEEE80211_SDATA_PROMISC)
+ atomic_inc(&local->iff_promiscs);
+
+ local->open_count++;
+ if (need_hw_reconfig) {
+ ieee80211_hw_config(local);
+ /*
+ * set default queue parameters so drivers don't
+ * need to initialise the hardware if the hardware
+ * doesn't start up with sane defaults
+ */
+ ieee80211_set_wmm_default(sdata);
+ }
+
+ /*
+ * ieee80211_sta_work is disabled while network interface
+ * is down. Therefore, some configuration changes may not
+ * yet be effective. Trigger execution of ieee80211_sta_work
+ * to fix this.
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ queue_work(local->hw.workqueue, &ifsta->work);
+ }
+
+ netif_tx_start_all_queues(dev);
+
+ return 0;
+ err_del_interface:
+ local->ops->remove_interface(local_to_hw(local), &conf);
+ err_stop:
+ if (!local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ err_del_bss:
+ sdata->bss = NULL;
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ list_del(&sdata->u.vlan.list);
+ return res;
+}
+
+static int ieee80211_stop(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_init_conf conf;
+ struct sta_info *sta;
+
+ /*
+ * Stop TX on this interface first.
+ */
+ netif_tx_stop_all_queues(dev);
+
+ /*
+ * Now delete all active aggregation sessions.
+ */
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sta, &local->sta_list, list) {
+ if (sta->sdata == sdata)
+ ieee80211_sta_tear_down_BA_sessions(sdata,
+ sta->sta.addr);
+ }
+
+ rcu_read_unlock();
+
+ /*
+ * Remove all stations associated with this interface.
+ *
+ * This must be done before calling ops->remove_interface()
+ * because otherwise we can later invoke ops->sta_notify()
+ * whenever the STAs are removed, and that invalidates driver
+ * assumptions about always getting a vif pointer that is valid
+ * (because if we remove a STA after ops->remove_interface()
+ * the driver will have removed the vif info already!)
+ *
+ * We could relax this and only unlink the stations from the
+ * hash table and list but keep them on a per-sdata list that
+ * will be inserted back again when the interface is brought
+ * up again, but I don't currently see a use case for that,
+ * except with WDS which gets a STA entry created when it is
+ * brought up.
+ */
+ sta_info_flush(local, sdata);
+
+ /*
+ * Don't count this interface for promisc/allmulti while it
+ * is down. dev_mc_unsync() will invoke set_multicast_list
+ * on the master interface which will sync these down to the
+ * hardware as filter flags.
+ */
+ if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+ atomic_dec(&local->iff_allmultis);
+
+ if (sdata->flags & IEEE80211_SDATA_PROMISC)
+ atomic_dec(&local->iff_promiscs);
+
+ dev_mc_unsync(local->mdev, dev);
+
+ /* APs need special treatment */
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
+ struct ieee80211_sub_if_data *vlan, *tmp;
+ struct beacon_data *old_beacon = sdata->u.ap.beacon;
+
+ /* remove beacon */
+ rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+ synchronize_rcu();
+ kfree(old_beacon);
+
+ /* down all dependent devices, that is VLANs */
+ list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
+ u.vlan.list)
+ dev_close(vlan->dev);
+ WARN_ON(!list_empty(&sdata->u.ap.vlans));
+ }
+
+ local->open_count--;
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ list_del(&sdata->u.vlan.list);
+ /* no need to tell driver */
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
+ local->cooked_mntrs--;
+ break;
+ }
+
+ local->monitors--;
+ if (local->monitors == 0)
+ local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
+
+ if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+ local->fif_fcsfail--;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
+ local->fif_plcpfail--;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
+ local->fif_control--;
+ if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
+ local->fif_other_bss--;
+
+ netif_addr_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_addr_unlock_bh(local->mdev);
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ sdata->u.sta.state = IEEE80211_STA_MLME_DISABLED;
+ memset(sdata->u.sta.bssid, 0, ETH_ALEN);
+ del_timer_sync(&sdata->u.sta.timer);
+ /*
+ * If the timer fired while we waited for it, it will have
+ * requeued the work. Now the work will be running again
+ * but will not rearm the timer again because it checks
+ * whether the interface is running, which, at this point,
+ * it no longer is.
+ */
+ cancel_work_sync(&sdata->u.sta.work);
+ /*
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
+ */
+ synchronize_rcu();
+ skb_queue_purge(&sdata->u.sta.skb_queue);
+
+ sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+ kfree(sdata->u.sta.extra_ie);
+ sdata->u.sta.extra_ie = NULL;
+ sdata->u.sta.extra_ie_len = 0;
+ /* fall through */
+ case NL80211_IFTYPE_MESH_POINT:
+ if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ /* allmulti is always set on mesh ifaces */
+ atomic_dec(&local->iff_allmultis);
+ ieee80211_stop_mesh(sdata);
+ }
+ /* fall through */
+ default:
+ if (local->scan_sdata == sdata) {
+ if (!local->ops->hw_scan)
+ cancel_delayed_work_sync(&local->scan_work);
+ /*
+ * The software scan can no longer run now, so we can
+ * clear out the scan_sdata reference. However, the
+ * hardware scan may still be running. The complete
+ * function must be prepared to handle a NULL value.
+ */
+ local->scan_sdata = NULL;
+ /*
+ * The memory barrier guarantees that another CPU
+ * that is hardware-scanning will now see the fact
+ * that this interface is gone.
+ */
+ smp_mb();
+ /*
+ * If software scanning, complete the scan but since
+ * the scan_sdata is NULL already don't send out a
+ * scan event to userspace -- the scan is incomplete.
+ */
+ if (local->sw_scanning)
+ ieee80211_scan_completed(&local->hw);
+ }
+
+ conf.vif = &sdata->vif;
+ conf.type = sdata->vif.type;
+ conf.mac_addr = dev->dev_addr;
+ /* disable all keys for as long as this netdev is down */
+ ieee80211_disable_keys(sdata);
+ local->ops->remove_interface(local_to_hw(local), &conf);
+ }
+
+ sdata->bss = NULL;
+
+ if (local->open_count == 0) {
+ if (netif_running(local->mdev))
+ dev_close(local->mdev);
+
+ if (local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+
+ ieee80211_led_radio(local, 0);
+
+ flush_workqueue(local->hw.workqueue);
+
+ tasklet_disable(&local->tx_pending_tasklet);
+ tasklet_disable(&local->tasklet);
+ }
+
+ return 0;
+}
+
+static void ieee80211_set_multicast_list(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ int allmulti, promisc, sdata_allmulti, sdata_promisc;
+
+ allmulti = !!(dev->flags & IFF_ALLMULTI);
+ promisc = !!(dev->flags & IFF_PROMISC);
+ sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
+ sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
+
+ if (allmulti != sdata_allmulti) {
+ if (dev->flags & IFF_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+ else
+ atomic_dec(&local->iff_allmultis);
+ sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
+ }
+
+ if (promisc != sdata_promisc) {
+ if (dev->flags & IFF_PROMISC)
+ atomic_inc(&local->iff_promiscs);
+ else
+ atomic_dec(&local->iff_promiscs);
+ sdata->flags ^= IEEE80211_SDATA_PROMISC;
+ }
+
+ dev_mc_sync(local->mdev, dev);
+}
+static void ieee80211_if_setup(struct net_device *dev)
+{
+ ether_setup(dev);
+ dev->hard_start_xmit = ieee80211_subif_start_xmit;
+ dev->wireless_handlers = &ieee80211_iw_handler_def;
+ dev->set_multicast_list = ieee80211_set_multicast_list;
+ dev->change_mtu = ieee80211_change_mtu;
+ dev->open = ieee80211_open;
+ dev->stop = ieee80211_stop;
+ dev->destructor = free_netdev;
+ /* we will validate the address ourselves in ->open */
+ dev->validate_addr = NULL;
+}
/*
* Called when the netdev is removed or, by the code below, before
* the interface type changes.
@@ -31,17 +565,17 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
int flushed;
int i;
- ieee80211_debugfs_remove_netdev(sdata);
-
/* free extra data */
ieee80211_free_keys(sdata);
+ ieee80211_debugfs_remove_netdev(sdata);
+
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
__skb_queue_purge(&sdata->fragments[i].skb_list);
sdata->fragment_next = 0;
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP:
beacon = sdata->u.ap.beacon;
rcu_assign_pointer(sdata->u.ap.beacon, NULL);
synchronize_rcu();
@@ -53,23 +587,23 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
}
break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- /* Allow compiler to elide mesh_rmc_free call. */
+ case NL80211_IFTYPE_MESH_POINT:
if (ieee80211_vif_is_mesh(&sdata->vif))
- mesh_rmc_free(dev);
- /* fall through */
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
+ mesh_rmc_free(sdata);
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
kfree(sdata->u.sta.extra_ie);
kfree(sdata->u.sta.assocreq_ies);
kfree(sdata->u.sta.assocresp_ies);
kfree_skb(sdata->u.sta.probe_resp);
break;
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_VLAN:
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_MONITOR:
break;
- case IEEE80211_IF_TYPE_INVALID:
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case __NL80211_IFTYPE_AFTER_LAST:
BUG();
break;
}
@@ -82,55 +616,43 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
* Helper function to initialise an interface to a specific type.
*/
static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
- enum ieee80211_if_types type)
+ enum nl80211_iftype type)
{
- struct ieee80211_if_sta *ifsta;
-
/* clear type-dependent union */
memset(&sdata->u, 0, sizeof(sdata->u));
/* and set some type-dependent values */
sdata->vif.type = type;
+ sdata->dev->hard_start_xmit = ieee80211_subif_start_xmit;
+ sdata->wdev.iftype = type;
/* only monitor differs */
sdata->dev->type = ARPHRD_ETHER;
switch (type) {
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP:
skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
INIT_LIST_HEAD(&sdata->u.ap.vlans);
break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- ifsta = &sdata->u.sta;
- INIT_WORK(&ifsta->work, ieee80211_sta_work);
- setup_timer(&ifsta->timer, ieee80211_sta_timer,
- (unsigned long) sdata);
- skb_queue_head_init(&ifsta->skb_queue);
-
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
- ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
-
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ ieee80211_sta_setup_sdata(sdata);
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
if (ieee80211_vif_is_mesh(&sdata->vif))
ieee80211_mesh_init_sdata(sdata);
break;
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_MONITOR:
sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP;
sdata->dev->hard_start_xmit = ieee80211_monitor_start_xmit;
sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
MONITOR_FLAG_OTHER_BSS;
break;
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_AP_VLAN:
break;
- case IEEE80211_IF_TYPE_INVALID:
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case __NL80211_IFTYPE_AFTER_LAST:
BUG();
break;
}
@@ -139,7 +661,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
}
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
- enum ieee80211_if_types type)
+ enum nl80211_iftype type)
{
ASSERT_RTNL();
@@ -160,14 +682,16 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
ieee80211_setup_sdata(sdata, type);
/* reset some values that shouldn't be kept across type changes */
- sdata->basic_rates = 0;
+ sdata->bss_conf.basic_rates =
+ ieee80211_mandatory_rates(sdata->local,
+ sdata->local->hw.conf.channel->band);
sdata->drop_unencrypted = 0;
return 0;
}
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
- struct net_device **new_dev, enum ieee80211_if_types type,
+ struct net_device **new_dev, enum nl80211_iftype type,
struct vif_params *params)
{
struct net_device *ndev;
@@ -225,9 +749,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
if (ieee80211_vif_is_mesh(&sdata->vif) &&
params && params->mesh_id_len)
- ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
- params->mesh_id_len,
- params->mesh_id);
+ ieee80211_sdata_set_mesh_id(sdata,
+ params->mesh_id_len,
+ params->mesh_id);
list_add_tail_rcu(&sdata->list, &local->interfaces);
@@ -241,15 +765,13 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
return ret;
}
-void ieee80211_if_remove(struct net_device *dev)
+void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
ASSERT_RTNL();
list_del_rcu(&sdata->list);
synchronize_rcu();
- unregister_netdevice(dev);
+ unregister_netdevice(sdata->dev);
}
/*
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 6597c779e35..a5b06fe7198 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -118,12 +118,12 @@ static const u8 *get_mac_for_key(struct ieee80211_key *key)
* address to indicate a transmit-only key.
*/
if (key->conf.alg != ALG_WEP &&
- (key->sdata->vif.type == IEEE80211_IF_TYPE_AP ||
- key->sdata->vif.type == IEEE80211_IF_TYPE_VLAN))
+ (key->sdata->vif.type == NL80211_IFTYPE_AP ||
+ key->sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
addr = zero_addr;
if (key->sta)
- addr = key->sta->addr;
+ addr = key->sta->sta.addr;
return addr;
}
@@ -281,6 +281,20 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
key->conf.alg = alg;
key->conf.keyidx = idx;
key->conf.keylen = key_len;
+ switch (alg) {
+ case ALG_WEP:
+ key->conf.iv_len = WEP_IV_LEN;
+ key->conf.icv_len = WEP_ICV_LEN;
+ break;
+ case ALG_TKIP:
+ key->conf.iv_len = TKIP_IV_LEN;
+ key->conf.icv_len = TKIP_ICV_LEN;
+ break;
+ case ALG_CCMP:
+ key->conf.iv_len = CCMP_HDR_LEN;
+ key->conf.icv_len = CCMP_MIC_LEN;
+ break;
+ }
memcpy(key->conf.key, key_data, key_len);
INIT_LIST_HEAD(&key->list);
INIT_LIST_HEAD(&key->todo);
@@ -331,7 +345,7 @@ void ieee80211_key_link(struct ieee80211_key *key,
*/
key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
} else {
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
struct sta_info *ap;
/*
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index aa5a191598c..ae62ad40ad6 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -45,16 +45,9 @@ struct ieee80211_tx_status_rtap_hdr {
u8 data_retries;
} __attribute__ ((packed));
-/* common interface routines */
-
-static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
/* must be called under mdev tx lock */
-static void ieee80211_configure_filter(struct ieee80211_local *local)
+void ieee80211_configure_filter(struct ieee80211_local *local)
{
unsigned int changed_flags;
unsigned int new_flags = 0;
@@ -97,9 +90,24 @@ static void ieee80211_configure_filter(struct ieee80211_local *local)
/* master interface */
+static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
+{
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
+ return ETH_ALEN;
+}
+
+static const struct header_ops ieee80211_header_ops = {
+ .create = eth_header,
+ .parse = header_parse_80211,
+ .rebuild = eth_rebuild_header,
+ .cache = eth_header_cache,
+ .cache_update = eth_header_cache_update,
+};
+
static int ieee80211_master_open(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
struct ieee80211_sub_if_data *sdata;
int res = -EOPNOTSUPP;
@@ -121,7 +129,8 @@ static int ieee80211_master_open(struct net_device *dev)
static int ieee80211_master_stop(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
struct ieee80211_sub_if_data *sdata;
/* we hold the RTNL here so can safely walk the list */
@@ -134,849 +143,12 @@ static int ieee80211_master_stop(struct net_device *dev)
static void ieee80211_master_set_multicast_list(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
ieee80211_configure_filter(local);
}
-/* regular interfaces */
-
-static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
-{
- int meshhdrlen;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- meshhdrlen = (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) ? 5 : 0;
-
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.3 frames. */
- if (new_mtu < 256 ||
- new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-static inline int identical_mac_addr_allowed(int type1, int type2)
-{
- return (type1 == IEEE80211_IF_TYPE_MNTR ||
- type2 == IEEE80211_IF_TYPE_MNTR ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_WDS) ||
- (type1 == IEEE80211_IF_TYPE_WDS &&
- (type2 == IEEE80211_IF_TYPE_WDS ||
- type2 == IEEE80211_IF_TYPE_AP)) ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_VLAN) ||
- (type1 == IEEE80211_IF_TYPE_VLAN &&
- (type2 == IEEE80211_IF_TYPE_AP ||
- type2 == IEEE80211_IF_TYPE_VLAN)));
-}
-
-static int ieee80211_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata, *nsdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_if_init_conf conf;
- u32 changed = 0;
- int res;
- bool need_hw_reconfig = 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(nsdata, &local->interfaces, list) {
- struct net_device *ndev = nsdata->dev;
-
- if (ndev != dev && netif_running(ndev)) {
- /*
- * Allow only a single IBSS interface to be up at any
- * time. This is restricted because beacon distribution
- * cannot work properly if both are in the same IBSS.
- *
- * To remove this restriction we'd have to disallow them
- * from setting the same SSID on different IBSS interfaces
- * belonging to the same hardware. Then, however, we're
- * faced with having to adopt two different TSF timers...
- */
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- nsdata->vif.type == IEEE80211_IF_TYPE_IBSS)
- return -EBUSY;
-
- /*
- * The remaining checks are only performed for interfaces
- * with the same MAC address.
- */
- if (compare_ether_addr(dev->dev_addr, ndev->dev_addr))
- continue;
-
- /*
- * check whether it may have the same address
- */
- if (!identical_mac_addr_allowed(sdata->vif.type,
- nsdata->vif.type))
- return -ENOTUNIQ;
-
- /*
- * can only add VLANs to enabled APs
- */
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
- nsdata->vif.type == IEEE80211_IF_TYPE_AP)
- sdata->bss = &nsdata->u.ap;
- }
- }
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_WDS:
- if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- if (!sdata->bss)
- return -ENOLINK;
- list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
- break;
- case IEEE80211_IF_TYPE_AP:
- sdata->bss = &sdata->u.ap;
- break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- /* mesh ifaces must set allmulti to forward mcast traffic */
- atomic_inc(&local->iff_allmultis);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_IBSS:
- /* no special treatment */
- break;
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- }
-
- if (local->open_count == 0) {
- res = 0;
- if (local->ops->start)
- res = local->ops->start(local_to_hw(local));
- if (res)
- goto err_del_bss;
- need_hw_reconfig = 1;
- ieee80211_led_radio(local, local->hw.conf.radio_enabled);
- }
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_VLAN:
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
- local->cooked_mntrs++;
- break;
- }
-
- /* must be before the call to ieee80211_configure_filter */
- local->monitors++;
- if (local->monitors == 1)
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
-
- if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
- local->fif_fcsfail++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
- local->fif_plcpfail++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
- local->fif_control++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
- local->fif_other_bss++;
-
- netif_addr_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- /* fall through */
- default:
- conf.vif = &sdata->vif;
- conf.type = sdata->vif.type;
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res)
- goto err_stop;
-
- if (ieee80211_vif_is_mesh(&sdata->vif))
- ieee80211_start_mesh(sdata->dev);
- changed |= ieee80211_reset_erp_info(dev);
- ieee80211_bss_info_change_notify(sdata, changed);
- ieee80211_enable_keys(sdata);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- netif_carrier_off(dev);
- else
- netif_carrier_on(dev);
- }
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
- /* Create STA entry for the WDS peer */
- sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
- GFP_KERNEL);
- if (!sta) {
- res = -ENOMEM;
- goto err_del_interface;
- }
-
- /* no locking required since STA is not live yet */
- sta->flags |= WLAN_STA_AUTHORIZED;
-
- res = sta_info_insert(sta);
- if (res) {
- /* STA has been freed */
- goto err_del_interface;
- }
- }
-
- if (local->open_count == 0) {
- res = dev_open(local->mdev);
- WARN_ON(res);
- if (res)
- goto err_del_interface;
- tasklet_enable(&local->tx_pending_tasklet);
- tasklet_enable(&local->tasklet);
- }
-
- /*
- * set_multicast_list will be invoked by the networking core
- * which will check whether any increments here were done in
- * error and sync them down to the hardware as filter flags.
- */
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
-
- if (sdata->flags & IEEE80211_SDATA_PROMISC)
- atomic_inc(&local->iff_promiscs);
-
- local->open_count++;
- if (need_hw_reconfig)
- ieee80211_hw_config(local);
-
- /*
- * ieee80211_sta_work is disabled while network interface
- * is down. Therefore, some configuration changes may not
- * yet be effective. Trigger execution of ieee80211_sta_work
- * to fix this.
- */
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- queue_work(local->hw.workqueue, &ifsta->work);
- }
-
- netif_tx_start_all_queues(dev);
-
- return 0;
- err_del_interface:
- local->ops->remove_interface(local_to_hw(local), &conf);
- err_stop:
- if (!local->open_count && local->ops->stop)
- local->ops->stop(local_to_hw(local));
- err_del_bss:
- sdata->bss = NULL;
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- list_del(&sdata->u.vlan.list);
- return res;
-}
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_init_conf conf;
- struct sta_info *sta;
-
- /*
- * Stop TX on this interface first.
- */
- netif_tx_stop_all_queues(dev);
-
- /*
- * Now delete all active aggregation sessions.
- */
- rcu_read_lock();
-
- list_for_each_entry_rcu(sta, &local->sta_list, list) {
- if (sta->sdata == sdata)
- ieee80211_sta_tear_down_BA_sessions(dev, sta->addr);
- }
-
- rcu_read_unlock();
-
- /*
- * Remove all stations associated with this interface.
- *
- * This must be done before calling ops->remove_interface()
- * because otherwise we can later invoke ops->sta_notify()
- * whenever the STAs are removed, and that invalidates driver
- * assumptions about always getting a vif pointer that is valid
- * (because if we remove a STA after ops->remove_interface()
- * the driver will have removed the vif info already!)
- *
- * We could relax this and only unlink the stations from the
- * hash table and list but keep them on a per-sdata list that
- * will be inserted back again when the interface is brought
- * up again, but I don't currently see a use case for that,
- * except with WDS which gets a STA entry created when it is
- * brought up.
- */
- sta_info_flush(local, sdata);
-
- /*
- * Don't count this interface for promisc/allmulti while it
- * is down. dev_mc_unsync() will invoke set_multicast_list
- * on the master interface which will sync these down to the
- * hardware as filter flags.
- */
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- atomic_dec(&local->iff_allmultis);
-
- if (sdata->flags & IEEE80211_SDATA_PROMISC)
- atomic_dec(&local->iff_promiscs);
-
- dev_mc_unsync(local->mdev, dev);
-
- /* APs need special treatment */
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
- struct ieee80211_sub_if_data *vlan, *tmp;
- struct beacon_data *old_beacon = sdata->u.ap.beacon;
-
- /* remove beacon */
- rcu_assign_pointer(sdata->u.ap.beacon, NULL);
- synchronize_rcu();
- kfree(old_beacon);
-
- /* down all dependent devices, that is VLANs */
- list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
- u.vlan.list)
- dev_close(vlan->dev);
- WARN_ON(!list_empty(&sdata->u.ap.vlans));
- }
-
- local->open_count--;
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_VLAN:
- list_del(&sdata->u.vlan.list);
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
- local->cooked_mntrs--;
- break;
- }
-
- local->monitors--;
- if (local->monitors == 0)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
-
- if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
- local->fif_fcsfail--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
- local->fif_plcpfail--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
- local->fif_control--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
- local->fif_other_bss--;
-
- netif_addr_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
- break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- /* allmulti is always set on mesh ifaces */
- atomic_dec(&local->iff_allmultis);
- /* fall through */
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.state = IEEE80211_DISABLED;
- memset(sdata->u.sta.bssid, 0, ETH_ALEN);
- del_timer_sync(&sdata->u.sta.timer);
- /*
- * When we get here, the interface is marked down.
- * Call synchronize_rcu() to wait for the RX path
- * should it be using the interface and enqueuing
- * frames at this very time on another CPU.
- */
- synchronize_rcu();
- skb_queue_purge(&sdata->u.sta.skb_queue);
-
- if (local->scan_dev == sdata->dev) {
- if (!local->ops->hw_scan) {
- local->sta_sw_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- } else
- local->sta_hw_scanning = 0;
- }
-
- sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
- kfree(sdata->u.sta.extra_ie);
- sdata->u.sta.extra_ie = NULL;
- sdata->u.sta.extra_ie_len = 0;
- /* fall through */
- default:
- conf.vif = &sdata->vif;
- conf.type = sdata->vif.type;
- conf.mac_addr = dev->dev_addr;
- /* disable all keys for as long as this netdev is down */
- ieee80211_disable_keys(sdata);
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-
- sdata->bss = NULL;
-
- if (local->open_count == 0) {
- if (netif_running(local->mdev))
- dev_close(local->mdev);
-
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
-
- ieee80211_led_radio(local, 0);
-
- flush_workqueue(local->hw.workqueue);
-
- tasklet_disable(&local->tx_pending_tasklet);
- tasklet_disable(&local->tasklet);
- }
-
- return 0;
-}
-
-int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
- u16 start_seq_num = 0;
- u8 *state;
- int ret;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM)
- return -EINVAL;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- rcu_read_lock();
-
- sta = sta_info_get(local, ra);
- if (!sta) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Could not find the station\n");
-#endif
- ret = -ENOENT;
- goto exit;
- }
-
- spin_lock_bh(&sta->lock);
-
- /* we have tried too many times, receiver does not want A-MPDU */
- if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
- ret = -EBUSY;
- goto err_unlock_sta;
- }
-
- state = &sta->ampdu_mlme.tid_state_tx[tid];
- /* check if the TID is not in aggregation flow already */
- if (*state != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - session is not "
- "idle on tid %u\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- ret = -EAGAIN;
- goto err_unlock_sta;
- }
-
- /* prepare A-MPDU MLME for Tx aggregation */
- sta->ampdu_mlme.tid_tx[tid] =
- kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
- if (!sta->ampdu_mlme.tid_tx[tid]) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
- tid);
-#endif
- ret = -ENOMEM;
- goto err_unlock_sta;
- }
- /* Tx timer */
- sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
- sta_addba_resp_timer_expired;
- sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data =
- (unsigned long)&sta->timer_to_tid[tid];
- init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-
- /* create a new queue for this aggregation */
- ret = ieee80211_ht_agg_queue_add(local, sta, tid);
-
- /* case no queue is available to aggregation
- * don't switch to aggregation */
- if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - queue unavailable for"
- " tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto err_unlock_queue;
- }
- sdata = sta->sdata;
-
- /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
- * call back right away, it must see that the flow has begun */
- *state |= HT_ADDBA_REQUESTED_MSK;
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
- ra, tid, &start_seq_num);
-
- if (ret) {
- /* No need to requeue the packets in the agg queue, since we
- * held the tx lock: no packet could be enqueued to the newly
- * allocated queue */
- ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - HW unavailable for"
- " tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- *state = HT_AGG_STATE_IDLE;
- goto err_unlock_queue;
- }
-
- /* Will put all the packets in the new SW queue */
- ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
- spin_unlock_bh(&sta->lock);
-
- /* send an addBA request */
- sta->ampdu_mlme.dialog_token_allocator++;
- sta->ampdu_mlme.tid_tx[tid]->dialog_token =
- sta->ampdu_mlme.dialog_token_allocator;
- sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
-
-
- ieee80211_send_addba_request(sta->sdata->dev, ra, tid,
- sta->ampdu_mlme.tid_tx[tid]->dialog_token,
- sta->ampdu_mlme.tid_tx[tid]->ssn,
- 0x40, 5000);
- /* activate the timer for the recipient's addBA response */
- sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
- jiffies + ADDBA_RESP_INTERVAL;
- add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
-#endif
- goto exit;
-
-err_unlock_queue:
- kfree(sta->ampdu_mlme.tid_tx[tid]);
- sta->ampdu_mlme.tid_tx[tid] = NULL;
- ret = -EBUSY;
-err_unlock_sta:
- spin_unlock_bh(&sta->lock);
-exit:
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
-
-int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
- u8 *ra, u16 tid,
- enum ieee80211_back_parties initiator)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- int ret = 0;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM)
- return -EINVAL;
-
- rcu_read_lock();
- sta = sta_info_get(local, ra);
- if (!sta) {
- rcu_read_unlock();
- return -ENOENT;
- }
-
- /* check if the TID is in aggregation */
- state = &sta->ampdu_mlme.tid_state_tx[tid];
- spin_lock_bh(&sta->lock);
-
- if (*state != HT_AGG_STATE_OPERATIONAL) {
- ret = -ENOENT;
- goto stop_BA_exit;
- }
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
-
- *state = HT_AGG_STATE_REQ_STOP_BA_MSK |
- (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
- ra, tid, NULL);
-
- /* case HW denied going back to legacy */
- if (ret) {
- WARN_ON(ret != -EBUSY);
- *state = HT_AGG_STATE_OPERATIONAL;
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
- goto stop_BA_exit;
- }
-
-stop_BA_exit:
- spin_unlock_bh(&sta->lock);
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
-
-void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
- tid, STA_TID_NUM);
-#endif
- return;
- }
-
- rcu_read_lock();
- sta = sta_info_get(local, ra);
- if (!sta) {
- rcu_read_unlock();
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Could not find station: %s\n",
- print_mac(mac, ra));
-#endif
- return;
- }
-
- state = &sta->ampdu_mlme.tid_state_tx[tid];
- spin_lock_bh(&sta->lock);
-
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
- *state);
-#endif
- spin_unlock_bh(&sta->lock);
- rcu_read_unlock();
- return;
- }
-
- WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
-
- *state |= HT_ADDBA_DRV_READY_MSK;
-
- if (*state == HT_AGG_STATE_OPERATIONAL) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
-#endif
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
- }
- spin_unlock_bh(&sta->lock);
- rcu_read_unlock();
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
-
-void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- int agg_queue;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
- tid, STA_TID_NUM);
-#endif
- return;
- }
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- rcu_read_lock();
- sta = sta_info_get(local, ra);
- if (!sta) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Could not find station: %s\n",
- print_mac(mac, ra));
-#endif
- rcu_read_unlock();
- return;
- }
- state = &sta->ampdu_mlme.tid_state_tx[tid];
-
- /* NOTE: no need to use sta->lock in this state check, as
- * ieee80211_stop_tx_ba_session will let only one stop call to
- * pass through per sta/tid
- */
- if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
-#endif
- rcu_read_unlock();
- return;
- }
-
- if (*state & HT_AGG_STATE_INITIATOR_MSK)
- ieee80211_send_delba(sta->sdata->dev, ra, tid,
- WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
-
- agg_queue = sta->tid_to_tx_q[tid];
-
- ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
-
- /* We just requeued the all the frames that were in the
- * removed queue, and since we might miss a softirq we do
- * netif_schedule_queue. ieee80211_wake_queue is not used
- * here as this queue is not necessarily stopped
- */
- netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
- spin_lock_bh(&sta->lock);
- *state = HT_AGG_STATE_IDLE;
- sta->ampdu_mlme.addba_req_num[tid] = 0;
- kfree(sta->ampdu_mlme.tid_tx[tid]);
- sta->ampdu_mlme.tid_tx[tid] = NULL;
- spin_unlock_bh(&sta->lock);
-
- rcu_read_unlock();
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
-
-void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
- const u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_ra_tid *ra_tid;
- struct sk_buff *skb = dev_alloc_skb(0);
-
- if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping start BA session", skb->dev->name);
-#endif
- return;
- }
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- memcpy(&ra_tid->ra, ra, ETH_ALEN);
- ra_tid->tid = tid;
-
- skb->pkt_type = IEEE80211_ADDBA_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
-
-void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
- const u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_ra_tid *ra_tid;
- struct sk_buff *skb = dev_alloc_skb(0);
-
- if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping stop BA session", skb->dev->name);
-#endif
- return;
- }
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- memcpy(&ra_tid->ra, ra, ETH_ALEN);
- ra_tid->tid = tid;
-
- skb->pkt_type = IEEE80211_DELBA_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
-
-static void ieee80211_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int allmulti, promisc, sdata_allmulti, sdata_promisc;
-
- allmulti = !!(dev->flags & IFF_ALLMULTI);
- promisc = !!(dev->flags & IFF_PROMISC);
- sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
- sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
-
- if (allmulti != sdata_allmulti) {
- if (dev->flags & IFF_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
- else
- atomic_dec(&local->iff_allmultis);
- sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
- }
-
- if (promisc != sdata_promisc) {
- if (dev->flags & IFF_PROMISC)
- atomic_inc(&local->iff_promiscs);
- else
- atomic_dec(&local->iff_promiscs);
- sdata->flags ^= IEEE80211_SDATA_PROMISC;
- }
-
- dev_mc_sync(local->mdev, dev);
-}
-
-static const struct header_ops ieee80211_header_ops = {
- .create = eth_header,
- .parse = header_parse_80211,
- .rebuild = eth_rebuild_header,
- .cache = eth_header_cache,
- .cache_update = eth_header_cache_update,
-};
-
-void ieee80211_if_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
- dev->wireless_handlers = &ieee80211_iw_handler_def;
- dev->set_multicast_list = ieee80211_set_multicast_list;
- dev->change_mtu = ieee80211_change_mtu;
- dev->open = ieee80211_open;
- dev->stop = ieee80211_stop;
- dev->destructor = free_netdev;
-}
-
/* everything else */
int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
@@ -987,18 +159,21 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
if (WARN_ON(!netif_running(sdata->dev)))
return 0;
+ if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+ return -EINVAL;
+
if (!local->ops->config_interface)
return 0;
memset(&conf, 0, sizeof(conf));
conf.changed = changed;
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
conf.bssid = sdata->u.sta.bssid;
conf.ssid = sdata->u.sta.ssid;
conf.ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+ } else if (sdata->vif.type == NL80211_IFTYPE_AP) {
conf.bssid = sdata->dev->dev_addr;
conf.ssid = sdata->u.ap.ssid;
conf.ssid_len = sdata->u.ap.ssid_len;
@@ -1027,7 +202,7 @@ int ieee80211_hw_config(struct ieee80211_local *local)
struct ieee80211_channel *chan;
int ret = 0;
- if (local->sta_sw_scanning)
+ if (local->sw_scanning)
chan = local->scan_channel;
else
chan = local->oper_channel;
@@ -1099,8 +274,8 @@ u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
ht_conf.ht_supported = 1;
ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
- ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
- ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
+ ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS);
+ ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS;
ht_bss_conf.primary_channel = req_bss_cap->primary_channel;
ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
@@ -1152,6 +327,9 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
+ if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+ return;
+
if (!changed)
return;
@@ -1162,10 +340,8 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
changed);
}
-u32 ieee80211_reset_erp_info(struct net_device *dev)
+u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
sdata->bss_conf.use_cts_prot = 0;
sdata->bss_conf.use_short_preamble = 0;
return BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_ERP_PREAMBLE;
@@ -1244,9 +420,10 @@ static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
struct ieee80211_key *key,
struct sk_buff *skb)
{
- int hdrlen, iv_len, mic_len;
+ unsigned int hdrlen, iv_len, mic_len;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (!key)
goto no_key;
@@ -1268,24 +445,20 @@ static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
goto no_key;
}
- if (skb->len >= mic_len &&
+ if (skb->len >= hdrlen + mic_len &&
!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
skb_trim(skb, skb->len - mic_len);
- if (skb->len >= iv_len && skb->len > hdrlen) {
+ if (skb->len >= hdrlen + iv_len) {
memmove(skb->data + iv_len, skb->data, hdrlen);
- skb_pull(skb, iv_len);
+ hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len);
}
no_key:
- {
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc = le16_to_cpu(hdr->frame_control);
- if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
- fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
- memmove(skb->data + 2, skb->data, hdrlen - 2);
- skb_pull(skb, 2);
- }
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
+ memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data,
+ hdrlen - IEEE80211_QOS_CTL_LEN);
+ skb_pull(skb, IEEE80211_QOS_CTL_LEN);
}
}
@@ -1369,6 +542,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u16 frag, type;
__le16 fc;
+ struct ieee80211_supported_band *sband;
struct ieee80211_tx_status_rtap_hdr *rthdr;
struct ieee80211_sub_if_data *sdata;
struct net_device *prev_dev = NULL;
@@ -1376,47 +550,48 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
rcu_read_lock();
- if (info->status.excessive_retries) {
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- if (test_sta_flags(sta, WLAN_STA_PS)) {
- /*
- * The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- ieee80211_handle_filtered_frame(local, sta, skb);
- rcu_read_unlock();
- return;
- }
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (sta) {
+ if (info->status.excessive_retries &&
+ test_sta_flags(sta, WLAN_STA_PS)) {
+ /*
+ * The STA is in power save mode, so assume
+ * that this TX packet failed because of that.
+ */
+ ieee80211_handle_filtered_frame(local, sta, skb);
+ rcu_read_unlock();
+ return;
}
- }
- fc = hdr->frame_control;
+ fc = hdr->frame_control;
+
+ if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
+ (ieee80211_is_data_qos(fc))) {
+ u16 tid, ssn;
+ u8 *qc;
- if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
- (ieee80211_is_data_qos(fc))) {
- u16 tid, ssn;
- u8 *qc;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
& IEEE80211_SCTL_SEQ);
- ieee80211_send_bar(sta->sdata->dev, hdr->addr1,
+ ieee80211_send_bar(sta->sdata, hdr->addr1,
tid, ssn);
}
- }
- if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
+ if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
ieee80211_handle_filtered_frame(local, sta, skb);
rcu_read_unlock();
return;
+ } else {
+ if (info->status.excessive_retries)
+ sta->tx_retry_failed++;
+ sta->tx_retry_count += info->status.retry_count;
}
- } else
- rate_control_tx_status(local->mdev, skb);
+
+ sband = local->hw.wiphy->bands[info->band];
+ rate_control_tx_status(local, sband, sta, skb);
+ }
rcu_read_unlock();
@@ -1504,7 +679,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) {
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
if (!netif_running(sdata->dev))
continue;
@@ -1580,8 +755,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.queues = 1; /* default */
- local->bridge_packets = 1;
-
local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
local->short_retry_limit = 7;
@@ -1592,7 +765,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
spin_lock_init(&local->key_lock);
- INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
+ INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
sta_info_init(local);
@@ -1619,7 +792,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
int result;
enum ieee80211_band band;
struct net_device *mdev;
- struct wireless_dev *mwdev;
+ struct ieee80211_master_priv *mpriv;
/*
* generic code guarantees at least one band,
@@ -1639,6 +812,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
}
}
+ /* if low-level driver supports AP, we also support VLAN */
+ if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP))
+ local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
+
+ /* mac80211 always supports monitor */
+ local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+
result = wiphy_register(local->hw.wiphy);
if (result < 0)
return result;
@@ -1654,16 +834,14 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (hw->queues < 4)
hw->ampdu_queues = 0;
- mdev = alloc_netdev_mq(sizeof(struct wireless_dev),
+ mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
"wmaster%d", ether_setup,
ieee80211_num_queues(hw));
if (!mdev)
goto fail_mdev_alloc;
- mwdev = netdev_priv(mdev);
- mdev->ieee80211_ptr = mwdev;
- mwdev->wiphy = local->hw.wiphy;
-
+ mpriv = netdev_priv(mdev);
+ mpriv->local = local;
local->mdev = mdev;
ieee80211_rx_bss_list_init(local);
@@ -1745,7 +923,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
/* add one default STA interface */
result = ieee80211_if_add(local, "wlan%d", NULL,
- IEEE80211_IF_TYPE_STA, NULL);
+ NL80211_IFTYPE_STATION, NULL);
if (result)
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
wiphy_name(local->hw.wiphy));
@@ -1837,6 +1015,10 @@ static int __init ieee80211_init(void)
BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) +
IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb));
+ ret = rc80211_minstrel_init();
+ if (ret)
+ return ret;
+
ret = rc80211_pid_init();
if (ret)
return ret;
@@ -1849,6 +1031,7 @@ static int __init ieee80211_init(void)
static void __exit ieee80211_exit(void)
{
rc80211_pid_exit();
+ rc80211_minstrel_exit();
/*
* For key todo, it'll be empty by now but the work
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 35f2f95f2fa..8013277924f 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -12,6 +12,9 @@
#include "ieee80211_i.h"
#include "mesh.h"
+#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
+#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
+
#define PP_OFFSET 1 /* Path Selection Protocol */
#define PM_OFFSET 5 /* Path Selection Metric */
#define CC_OFFSET 9 /* Congestion Control Mode */
@@ -35,19 +38,28 @@ void ieee80211s_stop(void)
kmem_cache_destroy(rm_cache);
}
+static void ieee80211_mesh_housekeeping_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata = (void *) data;
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+ ifmsh->housekeeping = true;
+ queue_work(local->hw.workqueue, &ifmsh->work);
+}
+
/**
* mesh_matches_local - check if the config of a mesh point matches ours
*
* @ie: information elements of a management frame from the mesh peer
- * @dev: local mesh interface
+ * @sdata: local mesh subif
*
* This function checks if the mesh configuration of a mesh point matches the
* local mesh configuration, i.e. if both nodes belong to the same mesh network.
*/
-bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev)
+bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *sta = &sdata->u.sta;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
/*
* As support for each feature is added, check for matching
@@ -59,11 +71,11 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev)
* - MDA enabled
* - Power management control on fc
*/
- if (sta->mesh_id_len == ie->mesh_id_len &&
- memcmp(sta->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
- memcmp(sta->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 &&
- memcmp(sta->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 &&
- memcmp(sta->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0)
+ if (ifmsh->mesh_id_len == ie->mesh_id_len &&
+ memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
+ memcmp(ifmsh->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 &&
+ memcmp(ifmsh->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 &&
+ memcmp(ifmsh->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0)
return true;
return false;
@@ -73,10 +85,8 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev)
* mesh_peer_accepts_plinks - check if an mp is willing to establish peer links
*
* @ie: information elements of a management frame from the mesh peer
- * @dev: local mesh interface
*/
-bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
- struct net_device *dev)
+bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
{
return (*(ie->mesh_config + CAPAB_OFFSET) & ACCEPT_PLINKS) != 0;
}
@@ -98,11 +108,11 @@ void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
*/
free_plinks = mesh_plink_availables(sdata);
- if (free_plinks != sdata->u.sta.accepting_plinks)
- ieee80211_sta_timer((unsigned long) sdata);
+ if (free_plinks != sdata->u.mesh.accepting_plinks)
+ ieee80211_mesh_housekeeping_timer((unsigned long) sdata);
}
-void mesh_ids_set_default(struct ieee80211_if_sta *sta)
+void mesh_ids_set_default(struct ieee80211_if_mesh *sta)
{
u8 def_id[4] = {0x00, 0x0F, 0xAC, 0xff};
@@ -111,28 +121,26 @@ void mesh_ids_set_default(struct ieee80211_if_sta *sta)
memcpy(sta->mesh_cc_id, def_id, 4);
}
-int mesh_rmc_init(struct net_device *dev)
+int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
int i;
- sdata->u.sta.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL);
- if (!sdata->u.sta.rmc)
+ sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL);
+ if (!sdata->u.mesh.rmc)
return -ENOMEM;
- sdata->u.sta.rmc->idx_mask = RMC_BUCKETS - 1;
+ sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1;
for (i = 0; i < RMC_BUCKETS; i++)
- INIT_LIST_HEAD(&sdata->u.sta.rmc->bucket[i].list);
+ INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list);
return 0;
}
-void mesh_rmc_free(struct net_device *dev)
+void mesh_rmc_free(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct mesh_rmc *rmc = sdata->u.sta.rmc;
+ struct mesh_rmc *rmc = sdata->u.mesh.rmc;
struct rmc_entry *p, *n;
int i;
- if (!sdata->u.sta.rmc)
+ if (!sdata->u.mesh.rmc)
return;
for (i = 0; i < RMC_BUCKETS; i++)
@@ -142,7 +150,7 @@ void mesh_rmc_free(struct net_device *dev)
}
kfree(rmc);
- sdata->u.sta.rmc = NULL;
+ sdata->u.mesh.rmc = NULL;
}
/**
@@ -158,10 +166,9 @@ void mesh_rmc_free(struct net_device *dev)
* it.
*/
int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
- struct net_device *dev)
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct mesh_rmc *rmc = sdata->u.sta.rmc;
+ struct mesh_rmc *rmc = sdata->u.mesh.rmc;
u32 seqnum = 0;
int entries = 0;
u8 idx;
@@ -194,10 +201,9 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
return 0;
}
-void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev)
+void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
u8 *pos;
int len, i, rate;
@@ -224,11 +230,11 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev)
}
}
- pos = skb_put(skb, 2 + sdata->u.sta.mesh_id_len);
+ pos = skb_put(skb, 2 + sdata->u.mesh.mesh_id_len);
*pos++ = WLAN_EID_MESH_ID;
- *pos++ = sdata->u.sta.mesh_id_len;
- if (sdata->u.sta.mesh_id_len)
- memcpy(pos, sdata->u.sta.mesh_id, sdata->u.sta.mesh_id_len);
+ *pos++ = sdata->u.mesh.mesh_id_len;
+ if (sdata->u.mesh.mesh_id_len)
+ memcpy(pos, sdata->u.mesh.mesh_id, sdata->u.mesh.mesh_id_len);
pos = skb_put(skb, 21);
*pos++ = WLAN_EID_MESH_CONFIG;
@@ -237,15 +243,15 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev)
*pos++ = 1;
/* Active path selection protocol ID */
- memcpy(pos, sdata->u.sta.mesh_pp_id, 4);
+ memcpy(pos, sdata->u.mesh.mesh_pp_id, 4);
pos += 4;
/* Active path selection metric ID */
- memcpy(pos, sdata->u.sta.mesh_pm_id, 4);
+ memcpy(pos, sdata->u.mesh.mesh_pm_id, 4);
pos += 4;
/* Congestion control mode identifier */
- memcpy(pos, sdata->u.sta.mesh_cc_id, 4);
+ memcpy(pos, sdata->u.mesh.mesh_cc_id, 4);
pos += 4;
/* Channel precedence:
@@ -255,17 +261,17 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev)
pos += 4;
/* Mesh capability */
- sdata->u.sta.accepting_plinks = mesh_plink_availables(sdata);
- *pos++ = sdata->u.sta.accepting_plinks ? ACCEPT_PLINKS : 0x00;
+ sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata);
+ *pos++ = sdata->u.mesh.accepting_plinks ? ACCEPT_PLINKS : 0x00;
*pos++ = 0x00;
return;
}
-u32 mesh_table_hash(u8 *addr, struct net_device *dev, struct mesh_table *tbl)
+u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, struct mesh_table *tbl)
{
/* Use last four bytes of hw addr and interface index as hash index */
- return jhash_2words(*(u32 *)(addr+2), dev->ifindex, tbl->hash_rnd)
+ return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd)
& tbl->hash_mask;
}
@@ -344,10 +350,10 @@ static void ieee80211_mesh_path_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(&sdata->wdev);
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ struct ieee80211_local *local = sdata->local;
- queue_work(local->hw.workqueue, &ifsta->work);
+ queue_work(local->hw.workqueue, &ifmsh->work);
}
struct mesh_table *mesh_table_grow(struct mesh_table *tbl)
@@ -399,50 +405,264 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
struct ieee80211_sub_if_data *sdata)
{
meshhdr->flags = 0;
- meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
- put_unaligned(cpu_to_le32(sdata->u.sta.mesh_seqnum), &meshhdr->seqnum);
- sdata->u.sta.mesh_seqnum++;
+ meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
+ put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum);
+ sdata->u.mesh.mesh_seqnum++;
return 6;
}
+static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_mesh *ifmsh)
+{
+ bool free_plinks;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: running mesh housekeeping\n",
+ sdata->dev->name);
+#endif
+
+ ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
+ mesh_path_expire(sdata);
+
+ free_plinks = mesh_plink_availables(sdata);
+ if (free_plinks != sdata->u.mesh.accepting_plinks)
+ ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+
+ ifmsh->housekeeping = false;
+ mod_timer(&ifmsh->housekeeping_timer,
+ round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
+}
+
+
+void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ struct ieee80211_local *local = sdata->local;
+
+ ifmsh->housekeeping = true;
+ queue_work(local->hw.workqueue, &ifmsh->work);
+ ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+}
+
+void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
+{
+ del_timer_sync(&sdata->u.mesh.housekeeping_timer);
+ /*
+ * If the timer fired while we waited for it, it will have
+ * requeued the work. Now the work will be running again
+ * but will not rearm the timer again because it checks
+ * whether the interface is running, which, at this point,
+ * it no longer is.
+ */
+ cancel_work_sync(&sdata->u.mesh.work);
+
+ /*
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
+ */
+ synchronize_rcu();
+ skb_queue_purge(&sdata->u.mesh.skb_queue);
+}
+
+static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
+ u16 stype,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_local *local= sdata->local;
+ struct ieee802_11_elems elems;
+ struct ieee80211_channel *channel;
+ u64 supp_rates = 0;
+ size_t baselen;
+ int freq;
+ enum ieee80211_band band = rx_status->band;
+
+ /* ignore ProbeResp to foreign address */
+ if (stype == IEEE80211_STYPE_PROBE_RESP &&
+ compare_ether_addr(mgmt->da, sdata->dev->dev_addr))
+ return;
+
+ baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
+ if (baselen > len)
+ return;
+
+ ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
+ &elems);
+
+ if (elems.ds_params && elems.ds_params_len == 1)
+ freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
+ else
+ freq = rx_status->freq;
+
+ channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+ if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+ return;
+
+ if (elems.mesh_id && elems.mesh_config &&
+ mesh_matches_local(&elems, sdata)) {
+ supp_rates = ieee80211_sta_get_rates(local, &elems, band);
+
+ mesh_neighbour_update(mgmt->sa, supp_rates, sdata,
+ mesh_peer_accepts_plinks(&elems));
+ }
+}
+
+static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ switch (mgmt->u.action.category) {
+ case PLINK_CATEGORY:
+ mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
+ break;
+ case MESH_PATH_SEL_CATEGORY:
+ mesh_rx_path_sel_frame(sdata, mgmt, len);
+ break;
+ }
+}
+
+static void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
+{
+ struct ieee80211_rx_status *rx_status;
+ struct ieee80211_if_mesh *ifmsh;
+ struct ieee80211_mgmt *mgmt;
+ u16 stype;
+
+ ifmsh = &sdata->u.mesh;
+
+ rx_status = (struct ieee80211_rx_status *) skb->cb;
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
+
+ switch (stype) {
+ case IEEE80211_STYPE_PROBE_RESP:
+ case IEEE80211_STYPE_BEACON:
+ ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len,
+ rx_status);
+ break;
+ case IEEE80211_STYPE_ACTION:
+ ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status);
+ break;
+ }
+
+ kfree_skb(skb);
+}
+
+static void ieee80211_mesh_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data, u.mesh.work);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ struct sk_buff *skb;
+
+ if (!netif_running(sdata->dev))
+ return;
+
+ if (local->sw_scanning || local->hw_scanning)
+ return;
+
+ while ((skb = skb_dequeue(&ifmsh->skb_queue)))
+ ieee80211_mesh_rx_queued_mgmt(sdata, skb);
+
+ if (ifmsh->preq_queue_len &&
+ time_after(jiffies,
+ ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval)))
+ mesh_path_start_discovery(sdata);
+
+ if (ifmsh->housekeeping)
+ ieee80211_mesh_housekeeping(sdata, ifmsh);
+}
+
+void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list)
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ queue_work(local->hw.workqueue, &sdata->u.mesh.work);
+ rcu_read_unlock();
+}
+
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
- ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
- ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
- ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
- ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
- ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
- ifsta->mshcfg.auto_open_plinks = true;
- ifsta->mshcfg.dot11MeshMaxPeerLinks =
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+ INIT_WORK(&ifmsh->work, ieee80211_mesh_work);
+ setup_timer(&ifmsh->housekeeping_timer,
+ ieee80211_mesh_housekeeping_timer,
+ (unsigned long) sdata);
+ skb_queue_head_init(&sdata->u.mesh.skb_queue);
+
+ ifmsh->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
+ ifmsh->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
+ ifmsh->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
+ ifmsh->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
+ ifmsh->mshcfg.dot11MeshTTL = MESH_TTL;
+ ifmsh->mshcfg.auto_open_plinks = true;
+ ifmsh->mshcfg.dot11MeshMaxPeerLinks =
MESH_MAX_ESTAB_PLINKS;
- ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
+ ifmsh->mshcfg.dot11MeshHWMPactivePathTimeout =
MESH_PATH_TIMEOUT;
- ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
+ ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval =
MESH_PREQ_MIN_INT;
- ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
+ ifmsh->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
MESH_DIAM_TRAVERSAL_TIME;
- ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
+ ifmsh->mshcfg.dot11MeshHWMPmaxPREQretries =
MESH_MAX_PREQ_RETRIES;
- ifsta->mshcfg.path_refresh_time =
+ ifmsh->mshcfg.path_refresh_time =
MESH_PATH_REFRESH_TIME;
- ifsta->mshcfg.min_discovery_timeout =
+ ifmsh->mshcfg.min_discovery_timeout =
MESH_MIN_DISCOVERY_TIMEOUT;
- ifsta->accepting_plinks = true;
- ifsta->preq_id = 0;
- ifsta->dsn = 0;
- atomic_set(&ifsta->mpaths, 0);
- mesh_rmc_init(sdata->dev);
- ifsta->last_preq = jiffies;
+ ifmsh->accepting_plinks = true;
+ ifmsh->preq_id = 0;
+ ifmsh->dsn = 0;
+ atomic_set(&ifmsh->mpaths, 0);
+ mesh_rmc_init(sdata);
+ ifmsh->last_preq = jiffies;
/* Allocate all mesh structures when creating the first mesh interface. */
if (!mesh_allocated)
ieee80211s_init();
- mesh_ids_set_default(ifsta);
- setup_timer(&ifsta->mesh_path_timer,
+ mesh_ids_set_default(ifmsh);
+ setup_timer(&ifmsh->mesh_path_timer,
ieee80211_mesh_path_timer,
(unsigned long) sdata);
- INIT_LIST_HEAD(&ifsta->preq_queue.list);
- spin_lock_init(&ifsta->mesh_preq_queue_lock);
+ INIT_LIST_HEAD(&ifmsh->preq_queue.list);
+ spin_lock_init(&ifmsh->mesh_preq_queue_lock);
+}
+
+ieee80211_rx_result
+ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ if (skb->len < 24)
+ return RX_DROP_MONITOR;
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_RESP:
+ case IEEE80211_STYPE_BEACON:
+ case IEEE80211_STYPE_ACTION:
+ memcpy(skb->cb, rx_status, sizeof(*rx_status));
+ skb_queue_tail(&ifmsh->skb_queue, skb);
+ queue_work(local->hw.workqueue, &ifmsh->work);
+ return RX_QUEUED;
+ }
+
+ return RX_CONTINUE;
}
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 7495fbb0d21..e10471c6ba4 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -47,7 +47,7 @@ enum mesh_path_flags {
* struct mesh_path - mac80211 mesh path structure
*
* @dst: mesh path destination mac address
- * @dev: mesh path device
+ * @sdata: mesh subif
* @next_hop: mesh neighbor to which frames for this destination will be
* forwarded
* @timer: mesh path discovery timer
@@ -64,14 +64,15 @@ enum mesh_path_flags {
* @state_lock: mesh pat state lock
*
*
- * The combination of dst and dev is unique in the mesh path table. Since the
+ * The combination of dst and sdata is unique in the mesh path table. Since the
* next_hop STA is only protected by RCU as well, deleting the STA must also
* remove/substitute the mesh_path structure and wait until that is no longer
* reachable before destroying the STA completely.
*/
struct mesh_path {
u8 dst[ETH_ALEN];
- struct net_device *dev;
+ u8 mpp[ETH_ALEN]; /* used for MPP or MAP */
+ struct ieee80211_sub_if_data *sdata;
struct sta_info *next_hop;
struct timer_list timer;
struct sk_buff_head frame_queue;
@@ -203,67 +204,82 @@ int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
struct ieee80211_sub_if_data *sdata);
int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
- struct net_device *dev);
-bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev);
-void mesh_ids_set_default(struct ieee80211_if_sta *sta);
-void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev);
-void mesh_rmc_free(struct net_device *dev);
-int mesh_rmc_init(struct net_device *dev);
+ struct ieee80211_sub_if_data *sdata);
+bool mesh_matches_local(struct ieee802_11_elems *ie,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
+void mesh_mgmt_ies_add(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
+int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
void ieee80211s_init(void);
void ieee80211s_stop(void);
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
+ieee80211_rx_result
+ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
+void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
/* Mesh paths */
-int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev);
-void mesh_path_start_discovery(struct net_device *dev);
-struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev);
-struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev);
+int mesh_nexthop_lookup(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
+void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mesh_path_lookup(u8 *dst,
+ struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mpp_path_lookup(u8 *dst,
+ struct ieee80211_sub_if_data *sdata);
+int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata);
+struct mesh_path *mesh_path_lookup_by_idx(int idx,
+ struct ieee80211_sub_if_data *sdata);
void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop);
-void mesh_path_expire(struct net_device *dev);
-void mesh_path_flush(struct net_device *dev);
-void mesh_rx_path_sel_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
- size_t len);
-int mesh_path_add(u8 *dst, struct net_device *dev);
+void mesh_path_expire(struct ieee80211_sub_if_data *sdata);
+void mesh_path_flush(struct ieee80211_sub_if_data *sdata);
+void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len);
+int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata);
/* Mesh plinks */
-void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
- bool add);
-bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
- struct net_device *dev);
+void mesh_neighbour_update(u8 *hw_addr, u64 rates,
+ struct ieee80211_sub_if_data *sdata, bool add);
+bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
void mesh_plink_broken(struct sta_info *sta);
void mesh_plink_deactivate(struct sta_info *sta);
int mesh_plink_open(struct sta_info *sta);
int mesh_plink_close(struct sta_info *sta);
void mesh_plink_block(struct sta_info *sta);
-void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
- size_t len, struct ieee80211_rx_status *rx_status);
+void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct ieee80211_rx_status *rx_status);
/* Private interfaces */
/* Mesh tables */
struct mesh_table *mesh_table_alloc(int size_order);
void mesh_table_free(struct mesh_table *tbl, bool free_leafs);
struct mesh_table *mesh_table_grow(struct mesh_table *tbl);
-u32 mesh_table_hash(u8 *addr, struct net_device *dev, struct mesh_table *tbl);
+u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata,
+ struct mesh_table *tbl);
/* Mesh paths */
int mesh_path_error_tx(u8 *dest, __le32 dest_dsn, u8 *ra,
- struct net_device *dev);
+ struct ieee80211_sub_if_data *sdata);
void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
void mesh_path_flush_pending(struct mesh_path *mpath);
void mesh_path_tx_pending(struct mesh_path *mpath);
int mesh_pathtbl_init(void);
void mesh_pathtbl_unregister(void);
-int mesh_path_del(u8 *addr, struct net_device *dev);
+int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata);
void mesh_path_timer(unsigned long data);
void mesh_path_flush_by_nexthop(struct sta_info *sta);
-void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev);
+void mesh_path_discard_frame(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata);
#ifdef CONFIG_MAC80211_MESH
extern int mesh_allocated;
static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
{
- return sdata->u.sta.mshcfg.dot11MeshMaxPeerLinks -
- atomic_read(&sdata->u.sta.mshstats.estab_plinks);
+ return sdata->u.mesh.mshcfg.dot11MeshMaxPeerLinks -
+ atomic_read(&sdata->u.mesh.mshstats.estab_plinks);
}
static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata)
@@ -281,8 +297,12 @@ static inline void mesh_path_activate(struct mesh_path *mpath)
for (i = 0; i <= x->hash_mask; i++) \
hlist_for_each_entry_rcu(node, p, &x->hash_buckets[i], list)
+void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local);
+
#else
#define mesh_allocated 0
+static inline void
+ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {}
#endif
#endif /* IEEE80211S_H */
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 08aca446ca0..501c7831adb 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -64,14 +64,14 @@ static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae)
#define DSN_LT(x, y) ((long) (x) - (long) (y) < 0)
#define net_traversal_jiffies(s) \
- msecs_to_jiffies(s->u.sta.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
+ msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
#define default_lifetime(s) \
- MSEC_TO_TU(s->u.sta.mshcfg.dot11MeshHWMPactivePathTimeout)
+ MSEC_TO_TU(s->u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout)
#define min_preq_int_jiff(s) \
- (msecs_to_jiffies(s->u.sta.mshcfg.dot11MeshHWMPpreqMinInterval))
-#define max_preq_retries(s) (s->u.sta.mshcfg.dot11MeshHWMPmaxPREQretries)
+ (msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval))
+#define max_preq_retries(s) (s->u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries)
#define disc_timeout_jiff(s) \
- msecs_to_jiffies(sdata->u.sta.mshcfg.min_discovery_timeout)
+ msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)
enum mpath_frame_type {
MPATH_PREQ = 0,
@@ -82,9 +82,9 @@ enum mpath_frame_type {
static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst,
__le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime,
- __le32 metric, __le32 preq_id, struct net_device *dev)
+ __le32 metric, __le32 preq_id, struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
@@ -99,11 +99,11 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = action;
@@ -149,7 +149,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
return 0;
}
@@ -161,9 +161,9 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
* @ra: node this frame is addressed to
*/
int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
- struct net_device *dev)
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
@@ -178,11 +178,11 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, ra, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = MPATH_PERR;
@@ -198,7 +198,7 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
return 0;
}
@@ -223,7 +223,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
/* bitrate is in units of 100 Kbps, while we need rate in units of
* 1Mbps. This will be corrected on tx_time computation.
*/
- rate = sband->bitrates[sta->txrate_idx].bitrate;
+ rate = sband->bitrates[sta->last_txrate_idx].bitrate;
tx_time = (device_constant + 10 * test_frame_len / rate);
estimated_retx = ((1 << (2 * ARITH_SHIFT)) / (s_unit - err));
result = (tx_time * estimated_retx) >> (2 * ARITH_SHIFT) ;
@@ -233,7 +233,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
/**
* hwmp_route_info_get - Update routing info to originator and transmitter
*
- * @dev: local mesh interface
+ * @sdata: local mesh subif
* @mgmt: mesh management frame
* @hwmp_ie: hwmp information element (PREP or PREQ)
*
@@ -246,11 +246,11 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
* Notes: this function is the only place (besides user-provided info) where
* path routing information is updated.
*/
-static u32 hwmp_route_info_get(struct net_device *dev,
+static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *hwmp_ie)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct mesh_path *mpath;
struct sta_info *sta;
bool fresh_info;
@@ -301,14 +301,14 @@ static u32 hwmp_route_info_get(struct net_device *dev,
new_metric = MAX_METRIC;
exp_time = TU_TO_EXP_TIME(orig_lifetime);
- if (memcmp(orig_addr, dev->dev_addr, ETH_ALEN) == 0) {
+ if (memcmp(orig_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
/* This MP is the originator, we are not interested in this
* frame, except for updating transmitter's path info.
*/
process = false;
fresh_info = false;
} else {
- mpath = mesh_path_lookup(orig_addr, dev);
+ mpath = mesh_path_lookup(orig_addr, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if (mpath->flags & MESH_PATH_FIXED)
@@ -324,8 +324,8 @@ static u32 hwmp_route_info_get(struct net_device *dev,
}
}
} else {
- mesh_path_add(orig_addr, dev);
- mpath = mesh_path_lookup(orig_addr, dev);
+ mesh_path_add(orig_addr, sdata);
+ mpath = mesh_path_lookup(orig_addr, sdata);
if (!mpath) {
rcu_read_unlock();
return 0;
@@ -357,7 +357,7 @@ static u32 hwmp_route_info_get(struct net_device *dev,
else {
fresh_info = true;
- mpath = mesh_path_lookup(ta, dev);
+ mpath = mesh_path_lookup(ta, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if ((mpath->flags & MESH_PATH_FIXED) ||
@@ -365,8 +365,8 @@ static u32 hwmp_route_info_get(struct net_device *dev,
(last_hop_metric > mpath->metric)))
fresh_info = false;
} else {
- mesh_path_add(ta, dev);
- mpath = mesh_path_lookup(ta, dev);
+ mesh_path_add(ta, sdata);
+ mpath = mesh_path_lookup(ta, sdata);
if (!mpath) {
rcu_read_unlock();
return 0;
@@ -392,11 +392,10 @@ static u32 hwmp_route_info_get(struct net_device *dev,
return process ? new_metric : 0;
}
-static void hwmp_preq_frame_process(struct net_device *dev,
+static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *preq_elem, u32 metric) {
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_path *mpath;
u8 *dst_addr, *orig_addr;
u8 dst_flags, ttl;
@@ -411,19 +410,19 @@ static void hwmp_preq_frame_process(struct net_device *dev,
orig_dsn = PREQ_IE_ORIG_DSN(preq_elem);
dst_flags = PREQ_IE_DST_F(preq_elem);
- if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0) {
+ if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
forward = false;
reply = true;
metric = 0;
- if (time_after(jiffies, ifsta->last_dsn_update +
+ if (time_after(jiffies, ifmsh->last_dsn_update +
net_traversal_jiffies(sdata)) ||
- time_before(jiffies, ifsta->last_dsn_update)) {
- dst_dsn = ++ifsta->dsn;
- ifsta->last_dsn_update = jiffies;
+ time_before(jiffies, ifmsh->last_dsn_update)) {
+ dst_dsn = ++ifmsh->dsn;
+ ifmsh->last_dsn_update = jiffies;
}
} else {
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, dev);
+ mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath) {
if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
DSN_LT(mpath->dsn, dst_dsn)) {
@@ -445,15 +444,15 @@ static void hwmp_preq_frame_process(struct net_device *dev,
if (reply) {
lifetime = PREQ_IE_LIFETIME(preq_elem);
- ttl = ifsta->mshcfg.dot11MeshTTL;
+ ttl = ifmsh->mshcfg.dot11MeshTTL;
if (ttl != 0)
mesh_path_sel_frame_tx(MPATH_PREP, 0, dst_addr,
cpu_to_le32(dst_dsn), 0, orig_addr,
cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
- 0, dev);
+ 0, sdata);
else
- ifsta->mshstats.dropped_frames_ttl++;
+ ifmsh->mshstats.dropped_frames_ttl++;
}
if (forward) {
@@ -463,7 +462,7 @@ static void hwmp_preq_frame_process(struct net_device *dev,
ttl = PREQ_IE_TTL(preq_elem);
lifetime = PREQ_IE_LIFETIME(preq_elem);
if (ttl <= 1) {
- ifsta->mshstats.dropped_frames_ttl++;
+ ifmsh->mshstats.dropped_frames_ttl++;
return;
}
--ttl;
@@ -472,20 +471,19 @@ static void hwmp_preq_frame_process(struct net_device *dev,
hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1;
mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr,
cpu_to_le32(orig_dsn), dst_flags, dst_addr,
- cpu_to_le32(dst_dsn), dev->broadcast,
+ cpu_to_le32(dst_dsn), sdata->dev->broadcast,
hopcount, ttl, cpu_to_le32(lifetime),
cpu_to_le32(metric), cpu_to_le32(preq_id),
- dev);
- ifsta->mshstats.fwded_frames++;
+ sdata);
+ ifmsh->mshstats.fwded_frames++;
}
}
-static void hwmp_prep_frame_process(struct net_device *dev,
+static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *prep_elem, u32 metric)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct mesh_path *mpath;
u8 *dst_addr, *orig_addr;
u8 ttl, hopcount, flags;
@@ -499,18 +497,18 @@ static void hwmp_prep_frame_process(struct net_device *dev,
* replies
*/
dst_addr = PREP_IE_DST_ADDR(prep_elem);
- if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0)
+ if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0)
/* destination, no forwarding required */
return;
ttl = PREP_IE_TTL(prep_elem);
if (ttl <= 1) {
- sdata->u.sta.mshstats.dropped_frames_ttl++;
+ sdata->u.mesh.mshstats.dropped_frames_ttl++;
return;
}
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, dev);
+ mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath)
spin_lock_bh(&mpath->state_lock);
else
@@ -519,7 +517,7 @@ static void hwmp_prep_frame_process(struct net_device *dev,
spin_unlock_bh(&mpath->state_lock);
goto fail;
}
- memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN);
+ memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
spin_unlock_bh(&mpath->state_lock);
--ttl;
flags = PREP_IE_FLAGS(prep_elem);
@@ -531,20 +529,20 @@ static void hwmp_prep_frame_process(struct net_device *dev,
mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr,
cpu_to_le32(orig_dsn), 0, dst_addr,
- cpu_to_le32(dst_dsn), mpath->next_hop->addr, hopcount, ttl,
+ cpu_to_le32(dst_dsn), mpath->next_hop->sta.addr, hopcount, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
- 0, dev);
+ 0, sdata);
rcu_read_unlock();
- sdata->u.sta.mshstats.fwded_frames++;
+ sdata->u.mesh.mshstats.fwded_frames++;
return;
fail:
rcu_read_unlock();
- sdata->u.sta.mshstats.dropped_frames_no_route++;
+ sdata->u.mesh.mshstats.dropped_frames_no_route++;
return;
}
-static void hwmp_perr_frame_process(struct net_device *dev,
+static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, u8 *perr_elem)
{
struct mesh_path *mpath;
@@ -555,18 +553,18 @@ static void hwmp_perr_frame_process(struct net_device *dev,
dst_addr = PERR_IE_DST_ADDR(perr_elem);
dst_dsn = PERR_IE_DST_DSN(perr_elem);
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, dev);
+ mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if (mpath->flags & MESH_PATH_ACTIVE &&
- memcmp(ta, mpath->next_hop->addr, ETH_ALEN) == 0 &&
+ memcmp(ta, mpath->next_hop->sta.addr, ETH_ALEN) == 0 &&
(!(mpath->flags & MESH_PATH_DSN_VALID) ||
DSN_GT(dst_dsn, mpath->dsn))) {
mpath->flags &= ~MESH_PATH_ACTIVE;
mpath->dsn = dst_dsn;
spin_unlock_bh(&mpath->state_lock);
mesh_path_error_tx(dst_addr, cpu_to_le32(dst_dsn),
- dev->broadcast, dev);
+ sdata->dev->broadcast, sdata);
} else
spin_unlock_bh(&mpath->state_lock);
}
@@ -575,7 +573,7 @@ static void hwmp_perr_frame_process(struct net_device *dev,
-void mesh_rx_path_sel_frame(struct net_device *dev,
+void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len)
{
@@ -583,6 +581,10 @@ void mesh_rx_path_sel_frame(struct net_device *dev,
size_t baselen;
u32 last_hop_metric;
+ /* need action_code */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ return;
+
baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
len - baselen, &elems);
@@ -592,25 +594,25 @@ void mesh_rx_path_sel_frame(struct net_device *dev,
if (!elems.preq || elems.preq_len != 37)
/* Right now we support just 1 destination and no AE */
return;
- last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.preq);
+ last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq);
if (!last_hop_metric)
return;
- hwmp_preq_frame_process(dev, mgmt, elems.preq, last_hop_metric);
+ hwmp_preq_frame_process(sdata, mgmt, elems.preq, last_hop_metric);
break;
case MPATH_PREP:
if (!elems.prep || elems.prep_len != 31)
/* Right now we support no AE */
return;
- last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.prep);
+ last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep);
if (!last_hop_metric)
return;
- hwmp_prep_frame_process(dev, mgmt, elems.prep, last_hop_metric);
+ hwmp_prep_frame_process(sdata, mgmt, elems.prep, last_hop_metric);
break;
case MPATH_PERR:
if (!elems.perr || elems.perr_len != 12)
/* Right now we support only one destination per PERR */
return;
- hwmp_perr_frame_process(dev, mgmt, elems.perr);
+ hwmp_perr_frame_process(sdata, mgmt, elems.perr);
default:
return;
}
@@ -628,9 +630,8 @@ void mesh_rx_path_sel_frame(struct net_device *dev,
*/
static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
{
- struct ieee80211_sub_if_data *sdata =
- IEEE80211_DEV_TO_SUB_IF(mpath->dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_sub_if_data *sdata = mpath->sdata;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_preq_queue *preq_node;
preq_node = kmalloc(sizeof(struct mesh_preq_queue), GFP_KERNEL);
@@ -639,9 +640,9 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
return;
}
- spin_lock(&ifsta->mesh_preq_queue_lock);
- if (ifsta->preq_queue_len == MAX_PREQ_QUEUE_LEN) {
- spin_unlock(&ifsta->mesh_preq_queue_lock);
+ spin_lock(&ifmsh->mesh_preq_queue_lock);
+ if (ifmsh->preq_queue_len == MAX_PREQ_QUEUE_LEN) {
+ spin_unlock(&ifmsh->mesh_preq_queue_lock);
kfree(preq_node);
if (printk_ratelimit())
printk(KERN_DEBUG "Mesh HWMP: PREQ node queue full\n");
@@ -651,55 +652,53 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
memcpy(preq_node->dst, mpath->dst, ETH_ALEN);
preq_node->flags = flags;
- list_add_tail(&preq_node->list, &ifsta->preq_queue.list);
- ++ifsta->preq_queue_len;
- spin_unlock(&ifsta->mesh_preq_queue_lock);
+ list_add_tail(&preq_node->list, &ifmsh->preq_queue.list);
+ ++ifmsh->preq_queue_len;
+ spin_unlock(&ifmsh->mesh_preq_queue_lock);
- if (time_after(jiffies, ifsta->last_preq + min_preq_int_jiff(sdata)))
- queue_work(sdata->local->hw.workqueue, &ifsta->work);
+ if (time_after(jiffies, ifmsh->last_preq + min_preq_int_jiff(sdata)))
+ queue_work(sdata->local->hw.workqueue, &ifmsh->work);
- else if (time_before(jiffies, ifsta->last_preq)) {
+ else if (time_before(jiffies, ifmsh->last_preq)) {
/* avoid long wait if did not send preqs for a long time
* and jiffies wrapped around
*/
- ifsta->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;
- queue_work(sdata->local->hw.workqueue, &ifsta->work);
+ ifmsh->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;
+ queue_work(sdata->local->hw.workqueue, &ifmsh->work);
} else
- mod_timer(&ifsta->mesh_path_timer, ifsta->last_preq +
+ mod_timer(&ifmsh->mesh_path_timer, ifmsh->last_preq +
min_preq_int_jiff(sdata));
}
/**
* mesh_path_start_discovery - launch a path discovery from the PREQ queue
*
- * @dev: local mesh interface
+ * @sdata: local mesh subif
*/
-void mesh_path_start_discovery(struct net_device *dev)
+void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata =
- IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_preq_queue *preq_node;
struct mesh_path *mpath;
u8 ttl, dst_flags;
u32 lifetime;
- spin_lock(&ifsta->mesh_preq_queue_lock);
- if (!ifsta->preq_queue_len ||
- time_before(jiffies, ifsta->last_preq +
+ spin_lock(&ifmsh->mesh_preq_queue_lock);
+ if (!ifmsh->preq_queue_len ||
+ time_before(jiffies, ifmsh->last_preq +
min_preq_int_jiff(sdata))) {
- spin_unlock(&ifsta->mesh_preq_queue_lock);
+ spin_unlock(&ifmsh->mesh_preq_queue_lock);
return;
}
- preq_node = list_first_entry(&ifsta->preq_queue.list,
+ preq_node = list_first_entry(&ifmsh->preq_queue.list,
struct mesh_preq_queue, list);
list_del(&preq_node->list);
- --ifsta->preq_queue_len;
- spin_unlock(&ifsta->mesh_preq_queue_lock);
+ --ifmsh->preq_queue_len;
+ spin_unlock(&ifmsh->mesh_preq_queue_lock);
rcu_read_lock();
- mpath = mesh_path_lookup(preq_node->dst, dev);
+ mpath = mesh_path_lookup(preq_node->dst, sdata);
if (!mpath)
goto enddiscovery;
@@ -721,18 +720,18 @@ void mesh_path_start_discovery(struct net_device *dev)
goto enddiscovery;
}
- ifsta->last_preq = jiffies;
+ ifmsh->last_preq = jiffies;
- if (time_after(jiffies, ifsta->last_dsn_update +
+ if (time_after(jiffies, ifmsh->last_dsn_update +
net_traversal_jiffies(sdata)) ||
- time_before(jiffies, ifsta->last_dsn_update)) {
- ++ifsta->dsn;
- sdata->u.sta.last_dsn_update = jiffies;
+ time_before(jiffies, ifmsh->last_dsn_update)) {
+ ++ifmsh->dsn;
+ sdata->u.mesh.last_dsn_update = jiffies;
}
lifetime = default_lifetime(sdata);
- ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
+ ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
if (ttl == 0) {
- sdata->u.sta.mshstats.dropped_frames_ttl++;
+ sdata->u.mesh.mshstats.dropped_frames_ttl++;
spin_unlock_bh(&mpath->state_lock);
goto enddiscovery;
}
@@ -743,11 +742,11 @@ void mesh_path_start_discovery(struct net_device *dev)
dst_flags = MP_F_RF;
spin_unlock_bh(&mpath->state_lock);
- mesh_path_sel_frame_tx(MPATH_PREQ, 0, dev->dev_addr,
- cpu_to_le32(ifsta->dsn), dst_flags, mpath->dst,
- cpu_to_le32(mpath->dsn), dev->broadcast, 0,
+ mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->dev->dev_addr,
+ cpu_to_le32(ifmsh->dsn), dst_flags, mpath->dst,
+ cpu_to_le32(mpath->dsn), sdata->dev->broadcast, 0,
ttl, cpu_to_le32(lifetime), 0,
- cpu_to_le32(ifsta->preq_id++), dev);
+ cpu_to_le32(ifmsh->preq_id++), sdata);
mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
enddiscovery:
@@ -759,7 +758,7 @@ enddiscovery:
* ieee80211s_lookup_nexthop - put the appropriate next hop on a mesh frame
*
* @skb: 802.11 frame to be sent
- * @dev: network device the frame will be sent through
+ * @sdata: network subif the frame will be sent through
* @fwd_frame: true if this frame was originally from a different host
*
* Returns: 0 if the next hop was found. Nonzero otherwise. If no next hop is
@@ -767,9 +766,9 @@ enddiscovery:
* sent when the path is resolved. This means the caller must not free the skb
* in this case.
*/
-int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
+int mesh_nexthop_lookup(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sk_buff *skb_to_free = NULL;
struct mesh_path *mpath;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -777,14 +776,14 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
int err = 0;
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, dev);
+ mpath = mesh_path_lookup(dst_addr, sdata);
if (!mpath) {
- mesh_path_add(dst_addr, dev);
- mpath = mesh_path_lookup(dst_addr, dev);
+ mesh_path_add(dst_addr, sdata);
+ mpath = mesh_path_lookup(dst_addr, sdata);
if (!mpath) {
dev_kfree_skb(skb);
- sdata->u.sta.mshstats.dropped_frames_no_route++;
+ sdata->u.mesh.mshstats.dropped_frames_no_route++;
err = -ENOSPC;
goto endlookup;
}
@@ -792,14 +791,15 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
if (mpath->flags & MESH_PATH_ACTIVE) {
if (time_after(jiffies, mpath->exp_time -
- msecs_to_jiffies(sdata->u.sta.mshcfg.path_refresh_time))
- && !memcmp(dev->dev_addr, hdr->addr4, ETH_ALEN)
+ msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time))
+ && !memcmp(sdata->dev->dev_addr, hdr->addr4,
+ ETH_ALEN)
&& !(mpath->flags & MESH_PATH_RESOLVING)
&& !(mpath->flags & MESH_PATH_FIXED)) {
mesh_queue_preq(mpath,
PREQ_Q_F_START | PREQ_Q_F_REFRESH);
}
- memcpy(hdr->addr1, mpath->next_hop->addr,
+ memcpy(hdr->addr1, mpath->next_hop->sta.addr,
ETH_ALEN);
} else {
if (!(mpath->flags & MESH_PATH_RESOLVING)) {
@@ -815,7 +815,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
skb_queue_tail(&mpath->frame_queue, skb);
if (skb_to_free)
- mesh_path_discard_frame(skb_to_free, dev);
+ mesh_path_discard_frame(skb_to_free, sdata);
err = -ENOENT;
}
@@ -835,7 +835,7 @@ void mesh_path_timer(unsigned long data)
if (!mpath)
goto endmpathtimer;
spin_lock_bh(&mpath->state_lock);
- sdata = IEEE80211_DEV_TO_SUB_IF(mpath->dev);
+ sdata = mpath->sdata;
if (mpath->flags & MESH_PATH_RESOLVED ||
(!(mpath->flags & MESH_PATH_RESOLVING)))
mpath->flags &= ~(MESH_PATH_RESOLVING | MESH_PATH_RESOLVED);
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 838ee60492a..3c72557df45 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -9,7 +9,6 @@
#include <linux/etherdevice.h>
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/string.h>
@@ -37,6 +36,7 @@ struct mpath_node {
};
static struct mesh_table *mesh_paths;
+static struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
/* This lock will have the grow table function as writer and add / delete nodes
* as readers. When reading the table (i.e. doing lookups) we are well protected
@@ -62,13 +62,13 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
/**
* mesh_path_lookup - look up a path in the mesh path table
* @dst: hardware address (ETH_ALEN length) of destination
- * @dev: local interface
+ * @sdata: local subif
*
* Returns: pointer to the mesh path structure, or NULL if not found
*
* Locking: must be called within a read rcu section.
*/
-struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev)
+struct mesh_path *mesh_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
{
struct mesh_path *mpath;
struct hlist_node *n;
@@ -78,10 +78,10 @@ struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev)
tbl = rcu_dereference(mesh_paths);
- bucket = &tbl->hash_buckets[mesh_table_hash(dst, dev, tbl)];
+ bucket = &tbl->hash_buckets[mesh_table_hash(dst, sdata, tbl)];
hlist_for_each_entry_rcu(node, n, bucket, list) {
mpath = node->mpath;
- if (mpath->dev == dev &&
+ if (mpath->sdata == sdata &&
memcmp(dst, mpath->dst, ETH_ALEN) == 0) {
if (MPATH_EXPIRED(mpath)) {
spin_lock_bh(&mpath->state_lock);
@@ -95,16 +95,44 @@ struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev)
return NULL;
}
+struct mesh_path *mpp_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
+{
+ struct mesh_path *mpath;
+ struct hlist_node *n;
+ struct hlist_head *bucket;
+ struct mesh_table *tbl;
+ struct mpath_node *node;
+
+ tbl = rcu_dereference(mpp_paths);
+
+ bucket = &tbl->hash_buckets[mesh_table_hash(dst, sdata, tbl)];
+ hlist_for_each_entry_rcu(node, n, bucket, list) {
+ mpath = node->mpath;
+ if (mpath->sdata == sdata &&
+ memcmp(dst, mpath->dst, ETH_ALEN) == 0) {
+ if (MPATH_EXPIRED(mpath)) {
+ spin_lock_bh(&mpath->state_lock);
+ if (MPATH_EXPIRED(mpath))
+ mpath->flags &= ~MESH_PATH_ACTIVE;
+ spin_unlock_bh(&mpath->state_lock);
+ }
+ return mpath;
+ }
+ }
+ return NULL;
+}
+
+
/**
* mesh_path_lookup_by_idx - look up a path in the mesh path table by its index
* @idx: index
- * @dev: local interface, or NULL for all entries
+ * @sdata: local subif, or NULL for all entries
*
* Returns: pointer to the mesh path structure, or NULL if not found.
*
* Locking: must be called within a read rcu section.
*/
-struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev)
+struct mesh_path *mesh_path_lookup_by_idx(int idx, struct ieee80211_sub_if_data *sdata)
{
struct mpath_node *node;
struct hlist_node *p;
@@ -112,7 +140,7 @@ struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev)
int j = 0;
for_each_mesh_entry(mesh_paths, p, node, i) {
- if (dev && node->mpath->dev != dev)
+ if (sdata && node->mpath->sdata != sdata)
continue;
if (j++ == idx) {
if (MPATH_EXPIRED(node->mpath)) {
@@ -131,15 +159,14 @@ struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev)
/**
* mesh_path_add - allocate and add a new path to the mesh path table
* @addr: destination address of the path (ETH_ALEN length)
- * @dev: local interface
+ * @sdata: local subif
*
* Returns: 0 on sucess
*
* State: the initial state of the new path is set to 0
*/
-int mesh_path_add(u8 *dst, struct net_device *dev)
+int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct mesh_path *mpath, *new_mpath;
struct mpath_node *node, *new_node;
struct hlist_head *bucket;
@@ -148,14 +175,14 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
int err = 0;
u32 hash_idx;
- if (memcmp(dst, dev->dev_addr, ETH_ALEN) == 0)
+ if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
/* never add ourselves as neighbours */
return -ENOTSUPP;
if (is_multicast_ether_addr(dst))
return -ENOTSUPP;
- if (atomic_add_unless(&sdata->u.sta.mpaths, 1, MESH_MAX_MPATHS) == 0)
+ if (atomic_add_unless(&sdata->u.mesh.mpaths, 1, MESH_MAX_MPATHS) == 0)
return -ENOSPC;
err = -ENOMEM;
@@ -169,7 +196,7 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
read_lock(&pathtbl_resize_lock);
memcpy(new_mpath->dst, dst, ETH_ALEN);
- new_mpath->dev = dev;
+ new_mpath->sdata = sdata;
new_mpath->flags = 0;
skb_queue_head_init(&new_mpath->frame_queue);
new_node->mpath = new_mpath;
@@ -179,7 +206,7 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
spin_lock_init(&new_mpath->state_lock);
init_timer(&new_mpath->timer);
- hash_idx = mesh_table_hash(dst, dev, mesh_paths);
+ hash_idx = mesh_table_hash(dst, sdata, mesh_paths);
bucket = &mesh_paths->hash_buckets[hash_idx];
spin_lock(&mesh_paths->hashwlock[hash_idx]);
@@ -187,7 +214,7 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
err = -EEXIST;
hlist_for_each_entry(node, n, bucket, list) {
mpath = node->mpath;
- if (mpath->dev == dev && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
+ if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
goto err_exists;
}
@@ -223,7 +250,92 @@ err_exists:
err_node_alloc:
kfree(new_mpath);
err_path_alloc:
- atomic_dec(&sdata->u.sta.mpaths);
+ atomic_dec(&sdata->u.mesh.mpaths);
+ return err;
+}
+
+
+int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
+{
+ struct mesh_path *mpath, *new_mpath;
+ struct mpath_node *node, *new_node;
+ struct hlist_head *bucket;
+ struct hlist_node *n;
+ int grow = 0;
+ int err = 0;
+ u32 hash_idx;
+
+
+ if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
+ /* never add ourselves as neighbours */
+ return -ENOTSUPP;
+
+ if (is_multicast_ether_addr(dst))
+ return -ENOTSUPP;
+
+ err = -ENOMEM;
+ new_mpath = kzalloc(sizeof(struct mesh_path), GFP_KERNEL);
+ if (!new_mpath)
+ goto err_path_alloc;
+
+ new_node = kmalloc(sizeof(struct mpath_node), GFP_KERNEL);
+ if (!new_node)
+ goto err_node_alloc;
+
+ read_lock(&pathtbl_resize_lock);
+ memcpy(new_mpath->dst, dst, ETH_ALEN);
+ memcpy(new_mpath->mpp, mpp, ETH_ALEN);
+ new_mpath->sdata = sdata;
+ new_mpath->flags = 0;
+ skb_queue_head_init(&new_mpath->frame_queue);
+ new_node->mpath = new_mpath;
+ new_mpath->exp_time = jiffies;
+ spin_lock_init(&new_mpath->state_lock);
+
+ hash_idx = mesh_table_hash(dst, sdata, mpp_paths);
+ bucket = &mpp_paths->hash_buckets[hash_idx];
+
+ spin_lock(&mpp_paths->hashwlock[hash_idx]);
+
+ err = -EEXIST;
+ hlist_for_each_entry(node, n, bucket, list) {
+ mpath = node->mpath;
+ if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
+ goto err_exists;
+ }
+
+ hlist_add_head_rcu(&new_node->list, bucket);
+ if (atomic_inc_return(&mpp_paths->entries) >=
+ mpp_paths->mean_chain_len * (mpp_paths->hash_mask + 1))
+ grow = 1;
+
+ spin_unlock(&mpp_paths->hashwlock[hash_idx]);
+ read_unlock(&pathtbl_resize_lock);
+ if (grow) {
+ struct mesh_table *oldtbl, *newtbl;
+
+ write_lock(&pathtbl_resize_lock);
+ oldtbl = mpp_paths;
+ newtbl = mesh_table_grow(mpp_paths);
+ if (!newtbl) {
+ write_unlock(&pathtbl_resize_lock);
+ return 0;
+ }
+ rcu_assign_pointer(mpp_paths, newtbl);
+ write_unlock(&pathtbl_resize_lock);
+
+ synchronize_rcu();
+ mesh_table_free(oldtbl, false);
+ }
+ return 0;
+
+err_exists:
+ spin_unlock(&mpp_paths->hashwlock[hash_idx]);
+ read_unlock(&pathtbl_resize_lock);
+ kfree(new_node);
+err_node_alloc:
+ kfree(new_mpath);
+err_path_alloc:
return err;
}
@@ -241,7 +353,7 @@ void mesh_plink_broken(struct sta_info *sta)
struct mesh_path *mpath;
struct mpath_node *node;
struct hlist_node *p;
- struct net_device *dev = sta->sdata->dev;
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
int i;
rcu_read_lock();
@@ -256,7 +368,7 @@ void mesh_plink_broken(struct sta_info *sta)
spin_unlock_bh(&mpath->state_lock);
mesh_path_error_tx(mpath->dst,
cpu_to_le32(mpath->dsn),
- dev->broadcast, dev);
+ sdata->dev->broadcast, sdata);
} else
spin_unlock_bh(&mpath->state_lock);
}
@@ -284,11 +396,11 @@ void mesh_path_flush_by_nexthop(struct sta_info *sta)
for_each_mesh_entry(mesh_paths, p, node, i) {
mpath = node->mpath;
if (mpath->next_hop == sta)
- mesh_path_del(mpath->dst, mpath->dev);
+ mesh_path_del(mpath->dst, mpath->sdata);
}
}
-void mesh_path_flush(struct net_device *dev)
+void mesh_path_flush(struct ieee80211_sub_if_data *sdata)
{
struct mesh_path *mpath;
struct mpath_node *node;
@@ -297,19 +409,18 @@ void mesh_path_flush(struct net_device *dev)
for_each_mesh_entry(mesh_paths, p, node, i) {
mpath = node->mpath;
- if (mpath->dev == dev)
- mesh_path_del(mpath->dst, mpath->dev);
+ if (mpath->sdata == sdata)
+ mesh_path_del(mpath->dst, mpath->sdata);
}
}
static void mesh_path_node_reclaim(struct rcu_head *rp)
{
struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
- struct ieee80211_sub_if_data *sdata =
- IEEE80211_DEV_TO_SUB_IF(node->mpath->dev);
+ struct ieee80211_sub_if_data *sdata = node->mpath->sdata;
del_timer_sync(&node->mpath->timer);
- atomic_dec(&sdata->u.sta.mpaths);
+ atomic_dec(&sdata->u.mesh.mpaths);
kfree(node->mpath);
kfree(node);
}
@@ -318,11 +429,11 @@ static void mesh_path_node_reclaim(struct rcu_head *rp)
* mesh_path_del - delete a mesh path from the table
*
* @addr: dst address (ETH_ALEN length)
- * @dev: local interface
+ * @sdata: local subif
*
* Returns: 0 if succesful
*/
-int mesh_path_del(u8 *addr, struct net_device *dev)
+int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
{
struct mesh_path *mpath;
struct mpath_node *node;
@@ -332,13 +443,13 @@ int mesh_path_del(u8 *addr, struct net_device *dev)
int err = 0;
read_lock(&pathtbl_resize_lock);
- hash_idx = mesh_table_hash(addr, dev, mesh_paths);
+ hash_idx = mesh_table_hash(addr, sdata, mesh_paths);
bucket = &mesh_paths->hash_buckets[hash_idx];
spin_lock(&mesh_paths->hashwlock[hash_idx]);
hlist_for_each_entry(node, n, bucket, list) {
mpath = node->mpath;
- if (mpath->dev == dev &&
+ if (mpath->sdata == sdata &&
memcmp(addr, mpath->dst, ETH_ALEN) == 0) {
spin_lock_bh(&mpath->state_lock);
mpath->flags |= MESH_PATH_RESOLVING;
@@ -378,33 +489,33 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
* mesh_path_discard_frame - discard a frame whose path could not be resolved
*
* @skb: frame to discard
- * @dev: network device the frame was to be sent through
+ * @sdata: network subif the frame was to be sent through
*
* If the frame was beign forwarded from another MP, a PERR frame will be sent
* to the precursor.
*
* Locking: the function must me called within a rcu_read_lock region
*/
-void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev)
+void mesh_path_discard_frame(struct sk_buff *skb,
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct mesh_path *mpath;
u32 dsn = 0;
- if (memcmp(hdr->addr4, dev->dev_addr, ETH_ALEN) != 0) {
+ if (memcmp(hdr->addr4, sdata->dev->dev_addr, ETH_ALEN) != 0) {
u8 *ra, *da;
da = hdr->addr3;
ra = hdr->addr2;
- mpath = mesh_path_lookup(da, dev);
+ mpath = mesh_path_lookup(da, sdata);
if (mpath)
dsn = ++mpath->dsn;
- mesh_path_error_tx(skb->data, cpu_to_le32(dsn), ra, dev);
+ mesh_path_error_tx(skb->data, cpu_to_le32(dsn), ra, sdata);
}
kfree_skb(skb);
- sdata->u.sta.mshstats.dropped_frames_no_route++;
+ sdata->u.mesh.mshstats.dropped_frames_no_route++;
}
/**
@@ -416,14 +527,11 @@ void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev)
*/
void mesh_path_flush_pending(struct mesh_path *mpath)
{
- struct ieee80211_sub_if_data *sdata;
struct sk_buff *skb;
- sdata = IEEE80211_DEV_TO_SUB_IF(mpath->dev);
-
while ((skb = skb_dequeue(&mpath->frame_queue)) &&
(mpath->flags & MESH_PATH_ACTIVE))
- mesh_path_discard_frame(skb, mpath->dev);
+ mesh_path_discard_frame(skb, mpath->sdata);
}
/**
@@ -472,7 +580,7 @@ static int mesh_path_node_copy(struct hlist_node *p, struct mesh_table *newtbl)
node = hlist_entry(p, struct mpath_node, list);
mpath = node->mpath;
new_node->mpath = mpath;
- hash_idx = mesh_table_hash(mpath->dst, mpath->dev, newtbl);
+ hash_idx = mesh_table_hash(mpath->dst, mpath->sdata, newtbl);
hlist_add_head(&new_node->list,
&newtbl->hash_buckets[hash_idx]);
return 0;
@@ -481,15 +589,25 @@ static int mesh_path_node_copy(struct hlist_node *p, struct mesh_table *newtbl)
int mesh_pathtbl_init(void)
{
mesh_paths = mesh_table_alloc(INIT_PATHS_SIZE_ORDER);
+ if (!mesh_paths)
+ return -ENOMEM;
mesh_paths->free_node = &mesh_path_node_free;
mesh_paths->copy_node = &mesh_path_node_copy;
mesh_paths->mean_chain_len = MEAN_CHAIN_LEN;
- if (!mesh_paths)
+
+ mpp_paths = mesh_table_alloc(INIT_PATHS_SIZE_ORDER);
+ if (!mpp_paths) {
+ mesh_table_free(mesh_paths, true);
return -ENOMEM;
+ }
+ mpp_paths->free_node = &mesh_path_node_free;
+ mpp_paths->copy_node = &mesh_path_node_copy;
+ mpp_paths->mean_chain_len = MEAN_CHAIN_LEN;
+
return 0;
}
-void mesh_path_expire(struct net_device *dev)
+void mesh_path_expire(struct ieee80211_sub_if_data *sdata)
{
struct mesh_path *mpath;
struct mpath_node *node;
@@ -498,7 +616,7 @@ void mesh_path_expire(struct net_device *dev)
read_lock(&pathtbl_resize_lock);
for_each_mesh_entry(mesh_paths, p, node, i) {
- if (node->mpath->dev != dev)
+ if (node->mpath->sdata != sdata)
continue;
mpath = node->mpath;
spin_lock_bh(&mpath->state_lock);
@@ -507,7 +625,7 @@ void mesh_path_expire(struct net_device *dev)
time_after(jiffies,
mpath->exp_time + MESH_PATH_EXPIRE)) {
spin_unlock_bh(&mpath->state_lock);
- mesh_path_del(mpath->dst, mpath->dev);
+ mesh_path_del(mpath->dst, mpath->sdata);
} else
spin_unlock_bh(&mpath->state_lock);
}
@@ -517,4 +635,5 @@ void mesh_path_expire(struct net_device *dev)
void mesh_pathtbl_unregister(void)
{
mesh_table_free(mesh_paths, true);
+ mesh_table_free(mpp_paths, true);
}
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 9efeb1f0702..faac101c0f8 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -36,11 +36,11 @@
#define MESH_SECURITY_AUTHENTICATION_IMPOSSIBLE 9
#define MESH_SECURITY_FAILED_VERIFICATION 10
-#define dot11MeshMaxRetries(s) (s->u.sta.mshcfg.dot11MeshMaxRetries)
-#define dot11MeshRetryTimeout(s) (s->u.sta.mshcfg.dot11MeshRetryTimeout)
-#define dot11MeshConfirmTimeout(s) (s->u.sta.mshcfg.dot11MeshConfirmTimeout)
-#define dot11MeshHoldingTimeout(s) (s->u.sta.mshcfg.dot11MeshHoldingTimeout)
-#define dot11MeshMaxPeerLinks(s) (s->u.sta.mshcfg.dot11MeshMaxPeerLinks)
+#define dot11MeshMaxRetries(s) (s->u.mesh.mshcfg.dot11MeshMaxRetries)
+#define dot11MeshRetryTimeout(s) (s->u.mesh.mshcfg.dot11MeshRetryTimeout)
+#define dot11MeshConfirmTimeout(s) (s->u.mesh.mshcfg.dot11MeshConfirmTimeout)
+#define dot11MeshHoldingTimeout(s) (s->u.mesh.mshcfg.dot11MeshHoldingTimeout)
+#define dot11MeshMaxPeerLinks(s) (s->u.mesh.mshcfg.dot11MeshMaxPeerLinks)
enum plink_frame_type {
PLINK_OPEN = 0,
@@ -63,14 +63,14 @@ enum plink_event {
static inline
void mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
{
- atomic_inc(&sdata->u.sta.mshstats.estab_plinks);
+ atomic_inc(&sdata->u.mesh.mshstats.estab_plinks);
mesh_accept_plinks_update(sdata);
}
static inline
void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
{
- atomic_dec(&sdata->u.sta.mshstats.estab_plinks);
+ atomic_dec(&sdata->u.mesh.mshstats.estab_plinks);
mesh_accept_plinks_update(sdata);
}
@@ -106,7 +106,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
return NULL;
sta->flags = WLAN_STA_AUTHORIZED;
- sta->supp_rates[local->hw.conf.channel->band] = rates;
+ sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
return sta;
}
@@ -144,10 +144,10 @@ void mesh_plink_deactivate(struct sta_info *sta)
spin_unlock_bh(&sta->lock);
}
-static int mesh_plink_frame_tx(struct net_device *dev,
+static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
enum plink_frame_type action, u8 *da, __le16 llid, __le16 plid,
__le16 reason) {
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
bool include_plid = false;
@@ -163,10 +163,10 @@ static int mesh_plink_frame_tx(struct net_device *dev,
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 25 + sizeof(mgmt->u.action.u.plink_action));
memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.plink_action));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = PLINK_CATEGORY;
mgmt->u.action.u.plink_action.action_code = action;
@@ -180,7 +180,7 @@ static int mesh_plink_frame_tx(struct net_device *dev,
/* two-byte status code followed by two-byte AID */
memset(pos, 0, 4);
}
- mesh_mgmt_ies_add(skb, dev);
+ mesh_mgmt_ies_add(skb, sdata);
}
/* Add Peer Link Management element */
@@ -217,15 +217,14 @@ static int mesh_plink_frame_tx(struct net_device *dev,
memcpy(pos, &reason, 2);
}
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
return 0;
}
-void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
+void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct ieee80211_sub_if_data *sdata,
bool peer_accepting_plinks)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
rcu_read_lock();
@@ -244,10 +243,10 @@ void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
}
sta->last_rx = jiffies;
- sta->supp_rates[local->hw.conf.channel->band] = rates;
+ sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
if (peer_accepting_plinks && sta->plink_state == PLINK_LISTEN &&
- sdata->u.sta.accepting_plinks &&
- sdata->u.sta.mshcfg.auto_open_plinks)
+ sdata->u.mesh.accepting_plinks &&
+ sdata->u.mesh.mshcfg.auto_open_plinks)
mesh_plink_open(sta);
rcu_read_unlock();
@@ -257,7 +256,6 @@ static void mesh_plink_timer(unsigned long data)
{
struct sta_info *sta;
__le16 llid, plid, reason;
- struct net_device *dev = NULL;
struct ieee80211_sub_if_data *sdata;
#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
DECLARE_MAC_BUF(mac);
@@ -277,12 +275,11 @@ static void mesh_plink_timer(unsigned long data)
return;
}
mpl_dbg("Mesh plink timer for %s fired on state %d\n",
- print_mac(mac, sta->addr), sta->plink_state);
+ print_mac(mac, sta->sta.addr), sta->plink_state);
reason = 0;
llid = sta->llid;
plid = sta->plid;
sdata = sta->sdata;
- dev = sdata->dev;
switch (sta->plink_state) {
case PLINK_OPN_RCVD:
@@ -291,7 +288,7 @@ static void mesh_plink_timer(unsigned long data)
if (sta->plink_retries < dot11MeshMaxRetries(sdata)) {
u32 rand;
mpl_dbg("Mesh plink for %s (retry, timeout): %d %d\n",
- print_mac(mac, sta->addr),
+ print_mac(mac, sta->sta.addr),
sta->plink_retries, sta->plink_timeout);
get_random_bytes(&rand, sizeof(u32));
sta->plink_timeout = sta->plink_timeout +
@@ -299,7 +296,7 @@ static void mesh_plink_timer(unsigned long data)
++sta->plink_retries;
mod_plink_timer(sta, sta->plink_timeout);
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_OPEN, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_OPEN, sta->sta.addr, llid,
0, 0);
break;
}
@@ -312,7 +309,7 @@ static void mesh_plink_timer(unsigned long data)
sta->plink_state = PLINK_HOLDING;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid, plid,
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid, plid,
reason);
break;
case PLINK_HOLDING:
@@ -355,10 +352,10 @@ int mesh_plink_open(struct sta_info *sta)
mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
spin_unlock_bh(&sta->lock);
mpl_dbg("Mesh plink: starting establishment with %s\n",
- print_mac(mac, sta->addr));
+ print_mac(mac, sta->sta.addr));
- return mesh_plink_frame_tx(sdata->dev, PLINK_OPEN,
- sta->addr, llid, 0, 0);
+ return mesh_plink_frame_tx(sdata, PLINK_OPEN,
+ sta->sta.addr, llid, 0, 0);
}
void mesh_plink_block(struct sta_info *sta)
@@ -382,7 +379,7 @@ int mesh_plink_close(struct sta_info *sta)
#endif
mpl_dbg("Mesh plink: closing link with %s\n",
- print_mac(mac, sta->addr));
+ print_mac(mac, sta->sta.addr));
spin_lock_bh(&sta->lock);
sta->reason = cpu_to_le16(MESH_LINK_CANCELLED);
reason = sta->reason;
@@ -403,15 +400,14 @@ int mesh_plink_close(struct sta_info *sta)
llid = sta->llid;
plid = sta->plid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(sta->sdata->dev, PLINK_CLOSE, sta->addr, llid,
+ mesh_plink_frame_tx(sta->sdata, PLINK_CLOSE, sta->sta.addr, llid,
plid, reason);
return 0;
}
-void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
+void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt,
size_t len, struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee802_11_elems elems;
struct sta_info *sta;
@@ -425,6 +421,10 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
DECLARE_MAC_BUF(mac);
#endif
+ /* need action_code, aux */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 3)
+ return;
+
if (is_multicast_ether_addr(mgmt->da)) {
mpl_dbg("Mesh plink: ignore frame from multicast address");
return;
@@ -478,7 +478,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
/* Now we will figure out the appropriate event... */
event = PLINK_UNDEFINED;
- if (ftype != PLINK_CLOSE && (!mesh_matches_local(&elems, dev))) {
+ if (ftype != PLINK_CLOSE && (!mesh_matches_local(&elems, sdata))) {
switch (ftype) {
case PLINK_OPEN:
event = OPN_RJCT;
@@ -577,9 +577,9 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
sta->llid = llid;
mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_OPEN, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_OPEN, sta->sta.addr, llid,
0, 0);
- mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr,
+ mesh_plink_frame_tx(sdata, PLINK_CONFIRM, sta->sta.addr,
llid, plid, 0);
break;
default:
@@ -604,7 +604,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid,
plid, reason);
break;
case OPN_ACPT:
@@ -613,7 +613,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
sta->plid = plid;
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CONFIRM, sta->sta.addr, llid,
plid, 0);
break;
case CNF_ACPT:
@@ -646,13 +646,13 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid,
plid, reason);
break;
case OPN_ACPT:
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CONFIRM, sta->sta.addr, llid,
plid, 0);
break;
case CNF_ACPT:
@@ -661,7 +661,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
mesh_plink_inc_estab_count(sdata);
spin_unlock_bh(&sta->lock);
mpl_dbg("Mesh plink with %s ESTABLISHED\n",
- print_mac(mac, sta->addr));
+ print_mac(mac, sta->sta.addr));
break;
default:
spin_unlock_bh(&sta->lock);
@@ -685,7 +685,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid,
plid, reason);
break;
case OPN_ACPT:
@@ -694,8 +694,8 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
mesh_plink_inc_estab_count(sdata);
spin_unlock_bh(&sta->lock);
mpl_dbg("Mesh plink with %s ESTABLISHED\n",
- print_mac(mac, sta->addr));
- mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+ print_mac(mac, sta->sta.addr));
+ mesh_plink_frame_tx(sdata, PLINK_CONFIRM, sta->sta.addr, llid,
plid, 0);
break;
default:
@@ -714,13 +714,13 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
llid = sta->llid;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid,
plid, reason);
break;
case OPN_ACPT:
llid = sta->llid;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+ mesh_plink_frame_tx(sdata, PLINK_CONFIRM, sta->sta.addr, llid,
plid, 0);
break;
default:
@@ -743,8 +743,8 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
llid = sta->llid;
reason = sta->reason;
spin_unlock_bh(&sta->lock);
- mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
- plid, reason);
+ mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr,
+ llid, plid, reason);
break;
default:
spin_unlock_bh(&sta->lock);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 902cac1bd24..87665d7bb4f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -11,11 +11,6 @@
* published by the Free Software Foundation.
*/
-/* TODO:
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- * SSID)
- */
#include <linux/delay.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
@@ -26,607 +21,184 @@
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <net/iw_handler.h>
-#include <asm/types.h>
-
#include <net/mac80211.h>
+#include <asm/unaligned.h>
+
#include "ieee80211_i.h"
#include "rate.h"
#include "led.h"
-#include "mesh.h"
+#define IEEE80211_ASSOC_SCANS_MAX_TRIES 2
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
#define IEEE80211_ASSOC_MAX_TRIES 3
#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
#define IEEE80211_PROBE_INTERVAL (60 * HZ)
#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
#define IEEE80211_SCAN_INTERVAL (2 * HZ)
#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
-#define IEEE80211_PROBE_DELAY (HZ / 33)
-#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
-#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
-#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-#define ERP_INFO_USE_PROTECTION BIT(1)
-
-/* mgmt header + 1 byte action code */
-#define IEEE80211_MIN_ACTION_SIZE (24 + 1)
-
-#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
-#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
-#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
-#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
-#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
-
-/* next values represent the buffer size for A-MPDU frame.
- * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-#define IEEE80211_MAX_AMPDU_BUF 0x40
-
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len);
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len);
-static void ieee80211_rx_bss_put(struct ieee80211_local *local,
- struct ieee80211_sta_bss *bss);
-static int ieee80211_sta_find_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-static int ieee80211_sta_wep_configured(struct net_device *dev);
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len);
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-static void sta_rx_agg_session_timer_expired(unsigned long data);
-
-
-void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
-{
- size_t left = len;
- u8 *pos = start;
-
- memset(elems, 0, sizeof(*elems));
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left)
- return;
-
- switch (id) {
- case WLAN_EID_SSID:
- elems->ssid = pos;
- elems->ssid_len = elen;
- break;
- case WLAN_EID_SUPP_RATES:
- elems->supp_rates = pos;
- elems->supp_rates_len = elen;
- break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
- case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_CHALLENGE:
- elems->challenge = pos;
- elems->challenge_len = elen;
- break;
- case WLAN_EID_WPA:
- if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
- pos[2] == 0xf2) {
- /* Microsoft OUI (00:50:F2) */
- if (pos[3] == 1) {
- /* OUI Type 1 - WPA IE */
- elems->wpa = pos;
- elems->wpa_len = elen;
- } else if (elen >= 5 && pos[3] == 2) {
- if (pos[4] == 0) {
- elems->wmm_info = pos;
- elems->wmm_info_len = elen;
- } else if (pos[4] == 1) {
- elems->wmm_param = pos;
- elems->wmm_param_len = elen;
- }
- }
- }
- break;
- case WLAN_EID_RSN:
- elems->rsn = pos;
- elems->rsn_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_EXT_SUPP_RATES:
- elems->ext_supp_rates = pos;
- elems->ext_supp_rates_len = elen;
- break;
- case WLAN_EID_HT_CAPABILITY:
- elems->ht_cap_elem = pos;
- elems->ht_cap_elem_len = elen;
- break;
- case WLAN_EID_HT_EXTRA_INFO:
- elems->ht_info_elem = pos;
- elems->ht_info_elem_len = elen;
- break;
- case WLAN_EID_MESH_ID:
- elems->mesh_id = pos;
- elems->mesh_id_len = elen;
- break;
- case WLAN_EID_MESH_CONFIG:
- elems->mesh_config = pos;
- elems->mesh_config_len = elen;
- break;
- case WLAN_EID_PEER_LINK:
- elems->peer_link = pos;
- elems->peer_link_len = elen;
- break;
- case WLAN_EID_PREQ:
- elems->preq = pos;
- elems->preq_len = elen;
- break;
- case WLAN_EID_PREP:
- elems->prep = pos;
- elems->prep_len = elen;
- break;
- case WLAN_EID_PERR:
- elems->perr = pos;
- elems->perr_len = elen;
- break;
- case WLAN_EID_CHANNEL_SWITCH:
- elems->ch_switch_elem = pos;
- elems->ch_switch_elem_len = elen;
- break;
- case WLAN_EID_QUIET:
- if (!elems->quiet_elem) {
- elems->quiet_elem = pos;
- elems->quiet_elem_len = elen;
- }
- elems->num_of_quiet_elem++;
- break;
- case WLAN_EID_COUNTRY:
- elems->country_elem = pos;
- elems->country_elem_len = elen;
- break;
- case WLAN_EID_PWR_CONSTRAINT:
- elems->pwr_constr_elem = pos;
- elems->pwr_constr_elem_len = elen;
- break;
- default:
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-}
-
-
+/* utils */
static int ecw2cw(int ecw)
{
return (1 << ecw) - 1;
}
-
-static void ieee80211_sta_def_wmm_params(struct net_device *dev,
- struct ieee80211_sta_bss *bss,
- int ibss)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = sdata->local;
- int i, have_higher_than_11mbit = 0;
-
-
- /* cf. IEEE 802.11 9.2.12 */
- for (i = 0; i < bss->supp_rates_len; i++)
- if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
- have_higher_than_11mbit = 1;
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
-
- if (local->ops->conf_tx) {
- struct ieee80211_tx_queue_params qparam;
-
- memset(&qparam, 0, sizeof(qparam));
-
- qparam.aifs = 2;
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
- !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
- qparam.cw_min = 31;
- else
- qparam.cw_min = 15;
-
- qparam.cw_max = 1023;
- qparam.txop = 0;
-
- for (i = 0; i < local_to_hw(local)->queues; i++)
- local->ops->conf_tx(local_to_hw(local), i, &qparam);
- }
-}
-
-static void ieee80211_sta_wmm_params(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *wmm_param, size_t wmm_param_len)
+static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_queue_params params;
- size_t left;
- int count;
- u8 *pos;
-
- if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
- return;
+ u8 *end, *pos;
- if (!wmm_param)
- return;
-
- if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
- return;
- count = wmm_param[6] & 0x0f;
- if (count == ifsta->wmm_last_param_set)
- return;
- ifsta->wmm_last_param_set = count;
-
- pos = wmm_param + 8;
- left = wmm_param_len - 8;
-
- memset(&params, 0, sizeof(params));
-
- if (!local->ops->conf_tx)
- return;
-
- local->wmm_acm = 0;
- for (; left >= 4; left -= 4, pos += 4) {
- int aci = (pos[0] >> 5) & 0x03;
- int acm = (pos[0] >> 4) & 0x01;
- int queue;
+ pos = bss->ies;
+ if (pos == NULL)
+ return NULL;
+ end = pos + bss->ies_len;
- switch (aci) {
- case 1:
- queue = 3;
- if (acm)
- local->wmm_acm |= BIT(0) | BIT(3);
- break;
- case 2:
- queue = 1;
- if (acm)
- local->wmm_acm |= BIT(4) | BIT(5);
+ while (pos + 1 < end) {
+ if (pos + 2 + pos[1] > end)
break;
- case 3:
- queue = 0;
- if (acm)
- local->wmm_acm |= BIT(6) | BIT(7);
- break;
- case 0:
- default:
- queue = 2;
- if (acm)
- local->wmm_acm |= BIT(1) | BIT(2);
- break;
- }
-
- params.aifs = pos[0] & 0x0f;
- params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
- params.cw_min = ecw2cw(pos[1] & 0x0f);
- params.txop = get_unaligned_le16(pos + 2);
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
- "cWmin=%d cWmax=%d txop=%d\n",
- dev->name, queue, aci, acm, params.aifs, params.cw_min,
- params.cw_max, params.txop);
-#endif
- /* TODO: handle ACM (block TX, fallback to next lowest allowed
- * AC for now) */
- if (local->ops->conf_tx(local_to_hw(local), queue, &params)) {
- printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", dev->name, queue);
- }
+ if (pos[0] == ie)
+ return pos;
+ pos += 2 + pos[1];
}
-}
-
-static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata,
- bool use_protection,
- bool use_short_preamble)
-{
- struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- DECLARE_MAC_BUF(mac);
-#endif
- u32 changed = 0;
- if (use_protection != bss_conf->use_cts_prot) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
- "%s)\n",
- sdata->dev->name,
- use_protection ? "enabled" : "disabled",
- print_mac(mac, ifsta->bssid));
- }
-#endif
- bss_conf->use_cts_prot = use_protection;
- changed |= BSS_CHANGED_ERP_CTS_PROT;
- }
-
- if (use_short_preamble != bss_conf->use_short_preamble) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s barker preamble"
- " (BSSID=%s)\n",
- sdata->dev->name,
- use_short_preamble ? "short" : "long",
- print_mac(mac, ifsta->bssid));
- }
-#endif
- bss_conf->use_short_preamble = use_short_preamble;
- changed |= BSS_CHANGED_ERP_PREAMBLE;
- }
-
- return changed;
-}
-
-static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
- u8 erp_value)
-{
- bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
- bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0;
-
- return ieee80211_handle_protect_preamb(sdata,
- use_protection, use_short_preamble);
+ return NULL;
}
-static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_sta_bss *bss)
+static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
+ struct ieee80211_supported_band *sband,
+ u64 *rates)
{
- u32 changed = 0;
+ int i, j, count;
+ *rates = 0;
+ count = 0;
+ for (i = 0; i < bss->supp_rates_len; i++) {
+ int rate = (bss->supp_rates[i] & 0x7F) * 5;
- if (bss->has_erp_value)
- changed |= ieee80211_handle_erp_ie(sdata, bss->erp_value);
- else {
- u16 capab = bss->capability;
- changed |= ieee80211_handle_protect_preamb(sdata, false,
- (capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0);
+ for (j = 0; j < sband->n_bitrates; j++)
+ if (sband->bitrates[j].bitrate == rate) {
+ *rates |= BIT(j);
+ count++;
+ break;
+ }
}
- return changed;
-}
-
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
- struct ieee80211_ht_info *ht_info)
-{
-
- if (ht_info == NULL)
- return -EINVAL;
-
- memset(ht_info, 0, sizeof(*ht_info));
-
- if (ht_cap_ie) {
- u8 ampdu_info = ht_cap_ie->ampdu_params_info;
-
- ht_info->ht_supported = 1;
- ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
- ht_info->ampdu_factor =
- ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
- ht_info->ampdu_density =
- (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
- memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
- } else
- ht_info->ht_supported = 0;
-
- return 0;
+ return count;
}
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
- struct ieee80211_ht_addt_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info)
+/* also used by mesh code */
+u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+ struct ieee802_11_elems *elems,
+ enum ieee80211_band band)
{
- if (bss_info == NULL)
- return -EINVAL;
-
- memset(bss_info, 0, sizeof(*bss_info));
-
- if (ht_add_info_ie) {
- u16 op_mode;
- op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *bitrates;
+ size_t num_rates;
+ u64 supp_rates;
+ int i, j;
+ sband = local->hw.wiphy->bands[band];
- bss_info->primary_channel = ht_add_info_ie->control_chan;
- bss_info->bss_cap = ht_add_info_ie->ht_param;
- bss_info->bss_op_mode = (u8)(op_mode & 0xff);
+ if (!sband) {
+ WARN_ON(1);
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
}
- return 0;
+ bitrates = sband->bitrates;
+ num_rates = sband->n_bitrates;
+ supp_rates = 0;
+ for (i = 0; i < elems->supp_rates_len +
+ elems->ext_supp_rates_len; i++) {
+ u8 rate = 0;
+ int own_rate;
+ if (i < elems->supp_rates_len)
+ rate = elems->supp_rates[i];
+ else if (elems->ext_supp_rates)
+ rate = elems->ext_supp_rates
+ [i - elems->supp_rates_len];
+ own_rate = 5 * (rate & 0x7f);
+ for (j = 0; j < num_rates; j++)
+ if (bitrates[j].bitrate == own_rate)
+ supp_rates |= BIT(j);
+ }
+ return supp_rates;
}
-static void ieee80211_sta_send_associnfo(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
+/* frame sending functions */
+
+/* also used by scanning code */
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+ u8 *ssid, size_t ssid_len)
{
- char *buf;
- size_t len;
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_supported_band *sband;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *supp_rates, *esupp_rates = NULL;
int i;
- union iwreq_data wrqu;
-
- if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
- return;
- buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
- ifsta->assocresp_ies_len), GFP_KERNEL);
- if (!buf)
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+ "request\n", sdata->dev->name);
return;
-
- len = sprintf(buf, "ASSOCINFO(");
- if (ifsta->assocreq_ies) {
- len += sprintf(buf + len, "ReqIEs=");
- for (i = 0; i < ifsta->assocreq_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocreq_ies[i]);
- }
}
- if (ifsta->assocresp_ies) {
- if (ifsta->assocreq_ies)
- len += sprintf(buf + len, " ");
- len += sprintf(buf + len, "RespIEs=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
- }
- len += sprintf(buf + len, ")");
+ skb_reserve(skb, local->hw.extra_tx_headroom);
- if (len > IW_CUSTOM_MAX) {
- len = sprintf(buf, "ASSOCRESPIE=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_PROBE_REQ);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+ if (dst) {
+ memcpy(mgmt->da, dst, ETH_ALEN);
+ memcpy(mgmt->bssid, dst, ETH_ALEN);
+ } else {
+ memset(mgmt->da, 0xff, ETH_ALEN);
+ memset(mgmt->bssid, 0xff, ETH_ALEN);
}
+ pos = skb_put(skb, 2 + ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ssid_len;
+ memcpy(pos, ssid, ssid_len);
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = len;
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-
- kfree(buf);
-}
-
-
-static void ieee80211_set_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- bool assoc)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_conf *conf = &local_to_hw(local)->conf;
- union iwreq_data wrqu;
- u32 changed = BSS_CHANGED_ASSOC;
-
- if (assoc) {
- struct ieee80211_sta_bss *bss;
-
- ifsta->flags |= IEEE80211_STA_ASSOCIATED;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- conf->channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- /* set timing information */
- sdata->bss_conf.beacon_int = bss->beacon_int;
- sdata->bss_conf.timestamp = bss->timestamp;
- sdata->bss_conf.dtim_period = bss->dtim_period;
-
- changed |= ieee80211_handle_bss_capability(sdata, bss);
-
- ieee80211_rx_bss_put(local, bss);
- }
+ supp_rates = skb_put(skb, 2);
+ supp_rates[0] = WLAN_EID_SUPP_RATES;
+ supp_rates[1] = 0;
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
- changed |= BSS_CHANGED_HT;
- sdata->bss_conf.assoc_ht = 1;
- sdata->bss_conf.ht_conf = &conf->ht_conf;
- sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ struct ieee80211_rate *rate = &sband->bitrates[i];
+ if (esupp_rates) {
+ pos = skb_put(skb, 1);
+ esupp_rates[1]++;
+ } else if (supp_rates[1] == 8) {
+ esupp_rates = skb_put(skb, 3);
+ esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
+ esupp_rates[1] = 1;
+ pos = &esupp_rates[2];
+ } else {
+ pos = skb_put(skb, 1);
+ supp_rates[1]++;
}
-
- ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
- ieee80211_sta_send_associnfo(dev, ifsta);
- } else {
- netif_carrier_off(dev);
- ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid);
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- changed |= ieee80211_reset_erp_info(dev);
-
- sdata->bss_conf.assoc_ht = 0;
- sdata->bss_conf.ht_conf = NULL;
- sdata->bss_conf.ht_bss_conf = NULL;
-
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+ *pos = rate->bitrate / 5;
}
- ifsta->last_probe = jiffies;
- ieee80211_led_assoc(local, assoc);
- sdata->bss_conf.assoc = assoc;
- ieee80211_bss_info_change_notify(sdata, changed);
-
- if (assoc)
- netif_carrier_on(dev);
-
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+ ieee80211_tx_skb(sdata, skb, 0);
}
-static void ieee80211_set_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, int deauth)
-{
- if (deauth)
- ifsta->auth_tries = 0;
- ifsta->assoc_tries = 0;
- ieee80211_set_associated(dev, ifsta, 0);
-}
-
-void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
- int encrypt)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- skb->dev = sdata->local->mdev;
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
-
- skb->iif = sdata->dev->ifindex;
- skb->do_not_encrypt = !encrypt;
-
- dev_queue_xmit(skb);
-}
-
-
-static void ieee80211_send_auth(struct net_device *dev,
+static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
int transaction, u8 *extra, size_t extra_len,
int encrypt)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
@@ -634,19 +206,19 @@ static void ieee80211_send_auth(struct net_device *dev,
sizeof(*mgmt) + 6 + extra_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
- "frame\n", dev->name);
+ "frame\n", sdata->dev->name);
return;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
memset(mgmt, 0, 24 + 6);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_AUTH);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_AUTH);
if (encrypt)
mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
@@ -655,64 +227,19 @@ static void ieee80211_send_auth(struct net_device *dev,
if (extra)
memcpy(skb_put(skb, extra_len), extra, extra_len);
- ieee80211_sta_tx(dev, skb, encrypt);
-}
-
-
-static void ieee80211_authenticate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- DECLARE_MAC_BUF(mac);
-
- ifsta->auth_tries++;
- if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: authentication with AP %s"
- " timed out\n",
- dev->name, print_mac(mac, ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ifsta->state = IEEE80211_AUTHENTICATE;
- printk(KERN_DEBUG "%s: authenticate with AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
-
- ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
-}
-
-static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss,
- struct ieee80211_supported_band *sband,
- u64 *rates)
-{
- int i, j, count;
- *rates = 0;
- count = 0;
- for (i = 0; i < bss->supp_rates_len; i++) {
- int rate = (bss->supp_rates[i] & 0x7F) * 5;
-
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == rate) {
- *rates |= BIT(j);
- count++;
- break;
- }
- }
-
- return count;
+ ieee80211_tx_skb(sdata, skb, encrypt);
}
-static void ieee80211_send_assoc(struct net_device *dev,
+static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies;
+ u8 *pos, *ies, *ht_add_ie;
int i, len, count, rates_len, supp_rates_len;
u16 capab;
- struct ieee80211_sta_bss *bss;
+ struct ieee80211_bss *bss;
int wmm = 0;
struct ieee80211_supported_band *sband;
u64 rates = 0;
@@ -722,7 +249,7 @@ static void ieee80211_send_assoc(struct net_device *dev,
ifsta->ssid_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
- "frame\n", dev->name);
+ "frame\n", sdata->dev->name);
return;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -738,13 +265,13 @@ static void ieee80211_send_assoc(struct net_device *dev,
capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
}
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
+ bss = ieee80211_rx_bss_get(local, ifsta->bssid,
local->hw.conf.channel->center_freq,
ifsta->ssid, ifsta->ssid_len);
if (bss) {
if (bss->capability & WLAN_CAPABILITY_PRIVACY)
capab |= WLAN_CAPABILITY_PRIVACY;
- if (bss->wmm_ie)
+ if (bss->wmm_used)
wmm = 1;
/* get all rates supported by the device and the AP as
@@ -766,13 +293,13 @@ static void ieee80211_send_assoc(struct net_device *dev,
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
skb_put(skb, 10);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_REASSOC_REQ);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_REASSOC_REQ);
mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
mgmt->u.reassoc_req.listen_interval =
cpu_to_le16(local->hw.conf.listen_interval);
@@ -780,8 +307,8 @@ static void ieee80211_send_assoc(struct net_device *dev,
ETH_ALEN);
} else {
skb_put(skb, 4);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ASSOC_REQ);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ASSOC_REQ);
mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
mgmt->u.reassoc_req.listen_interval =
cpu_to_le16(local->hw.conf.listen_interval);
@@ -866,9 +393,10 @@ static void ieee80211_send_assoc(struct net_device *dev,
/* wmm support is a must to HT */
if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
- sband->ht_info.ht_supported && bss->ht_add_ie) {
+ sband->ht_info.ht_supported &&
+ (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) {
struct ieee80211_ht_addt_info *ht_add_info =
- (struct ieee80211_ht_addt_info *)bss->ht_add_ie;
+ (struct ieee80211_ht_addt_info *)ht_add_ie;
u16 cap = sband->ht_info.cap;
__le16 tmp;
u32 flags = local->hw.conf.channel->flags;
@@ -907,21 +435,22 @@ static void ieee80211_send_assoc(struct net_device *dev,
if (ifsta->assocreq_ies)
memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
}
-static void ieee80211_send_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
+static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
+ u16 stype, u16 reason)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
- "frame\n", dev->name);
+ printk(KERN_DEBUG "%s: failed to allocate buffer for "
+ "deauth/disassoc frame\n", sdata->dev->name);
return;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -929,940 +458,594 @@ static void ieee80211_send_deauth(struct net_device *dev,
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DEAUTH);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
skb_put(skb, 2);
+ /* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
}
-
-static void ieee80211_send_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
+/* MLME */
+static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_bss *bss)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
+ struct ieee80211_local *local = sdata->local;
+ int i, have_higher_than_11mbit = 0;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
+ /* cf. IEEE 802.11 9.2.12 */
+ for (i = 0; i < bss->supp_rates_len; i++)
+ if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
+ have_higher_than_11mbit = 1;
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DISASSOC);
- skb_put(skb, 2);
- mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
+ if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+ have_higher_than_11mbit)
+ sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_set_wmm_default(sdata);
}
-
-static int ieee80211_privacy_mismatch(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
+ struct ieee80211_if_sta *ifsta,
+ u8 *wmm_param, size_t wmm_param_len)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- int bss_privacy;
- int wep_privacy;
- int privacy_invoked;
+ struct ieee80211_tx_queue_params params;
+ size_t left;
+ int count;
+ u8 *pos;
- if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
- return 0;
+ if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+ return;
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (!bss)
- return 0;
+ if (!wmm_param)
+ return;
- bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY);
- wep_privacy = !!ieee80211_sta_wep_configured(dev);
- privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
+ if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
+ return;
+ count = wmm_param[6] & 0x0f;
+ if (count == ifsta->wmm_last_param_set)
+ return;
+ ifsta->wmm_last_param_set = count;
- ieee80211_rx_bss_put(local, bss);
+ pos = wmm_param + 8;
+ left = wmm_param_len - 8;
- if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
- return 0;
+ memset(&params, 0, sizeof(params));
- return 1;
-}
+ if (!local->ops->conf_tx)
+ return;
+ local->wmm_acm = 0;
+ for (; left >= 4; left -= 4, pos += 4) {
+ int aci = (pos[0] >> 5) & 0x03;
+ int acm = (pos[0] >> 4) & 0x01;
+ int queue;
-static void ieee80211_associate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
+ switch (aci) {
+ case 1:
+ queue = 3;
+ if (acm)
+ local->wmm_acm |= BIT(0) | BIT(3);
+ break;
+ case 2:
+ queue = 1;
+ if (acm)
+ local->wmm_acm |= BIT(4) | BIT(5);
+ break;
+ case 3:
+ queue = 0;
+ if (acm)
+ local->wmm_acm |= BIT(6) | BIT(7);
+ break;
+ case 0:
+ default:
+ queue = 2;
+ if (acm)
+ local->wmm_acm |= BIT(1) | BIT(2);
+ break;
+ }
+
+ params.aifs = pos[0] & 0x0f;
+ params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
+ params.cw_min = ecw2cw(pos[1] & 0x0f);
+ params.txop = get_unaligned_le16(pos + 2);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
+ "cWmin=%d cWmax=%d txop=%d\n",
+ local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
+ params.cw_max, params.txop);
+#endif
+ /* TODO: handle ACM (block TX, fallback to next lowest allowed
+ * AC for now) */
+ if (local->ops->conf_tx(local_to_hw(local), queue, &params)) {
+ printk(KERN_DEBUG "%s: failed to set TX queue "
+ "parameters for queue %d\n", local->mdev->name, queue);
+ }
+ }
+}
+
+static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata,
+ bool use_protection,
+ bool use_short_preamble)
{
+ struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
DECLARE_MAC_BUF(mac);
+#endif
+ u32 changed = 0;
- ifsta->assoc_tries++;
- if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- printk(KERN_DEBUG "%s: association with AP %s"
- " timed out\n",
- dev->name, print_mac(mac, ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
+ if (use_protection != bss_conf->use_cts_prot) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
+ "%s)\n",
+ sdata->dev->name,
+ use_protection ? "enabled" : "disabled",
+ print_mac(mac, ifsta->bssid));
+ }
+#endif
+ bss_conf->use_cts_prot = use_protection;
+ changed |= BSS_CHANGED_ERP_CTS_PROT;
}
- ifsta->state = IEEE80211_ASSOCIATE;
- printk(KERN_DEBUG "%s: associate with AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
- "mixed-cell disabled - abort association\n", dev->name);
- ifsta->state = IEEE80211_DISABLED;
- return;
+ if (use_short_preamble != bss_conf->use_short_preamble) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: switched to %s barker preamble"
+ " (BSSID=%s)\n",
+ sdata->dev->name,
+ use_short_preamble ? "short" : "long",
+ print_mac(mac, ifsta->bssid));
+ }
+#endif
+ bss_conf->use_short_preamble = use_short_preamble;
+ changed |= BSS_CHANGED_ERP_PREAMBLE;
}
- ieee80211_send_assoc(dev, ifsta);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+ return changed;
}
-
-static void ieee80211_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
+static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
+ u8 erp_value)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- int disassoc;
- DECLARE_MAC_BUF(mac);
-
- /* TODO: start monitoring current AP signal quality and number of
- * missed beacons. Scan other channels every now and then and search
- * for better APs. */
- /* TODO: remove expired BSSes */
+ bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+ bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0;
- ifsta->state = IEEE80211_ASSOCIATED;
+ return ieee80211_handle_protect_preamb(sdata,
+ use_protection, use_short_preamble);
+}
- rcu_read_lock();
+static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_bss *bss)
+{
+ u32 changed = 0;
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
- printk(KERN_DEBUG "%s: No ProbeResp from "
- "current AP %s - assume out of "
- "range\n",
- dev->name, print_mac(mac, ifsta->bssid));
- disassoc = 1;
- sta_info_unlink(&sta);
- } else
- ieee80211_send_probe_req(dev, ifsta->bssid,
- local->scan_ssid,
- local->scan_ssid_len);
- ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
- } else {
- ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- if (time_after(jiffies, ifsta->last_probe +
- IEEE80211_PROBE_INTERVAL)) {
- ifsta->last_probe = jiffies;
- ieee80211_send_probe_req(dev, ifsta->bssid,
- ifsta->ssid,
- ifsta->ssid_len);
- }
- }
+ if (bss->has_erp_value)
+ changed |= ieee80211_handle_erp_ie(sdata, bss->erp_value);
+ else {
+ u16 capab = bss->capability;
+ changed |= ieee80211_handle_protect_preamb(sdata, false,
+ (capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0);
}
- rcu_read_unlock();
-
- if (disassoc && sta)
- sta_info_destroy(sta);
-
- if (disassoc) {
- ifsta->state = IEEE80211_DISABLED;
- ieee80211_set_associated(dev, ifsta, 0);
- } else {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_MONITORING_INTERVAL);
- }
+ return changed;
}
+static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
+{
+ union iwreq_data wrqu;
+ memset(&wrqu, 0, sizeof(wrqu));
+ if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
+ memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
+}
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len)
+static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_supported_band *sband;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates, *esupp_rates = NULL;
+ char *buf;
+ size_t len;
int i;
+ union iwreq_data wrqu;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "request\n", dev->name);
+ if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_REQ);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (dst) {
- memcpy(mgmt->da, dst, ETH_ALEN);
- memcpy(mgmt->bssid, dst, ETH_ALEN);
- } else {
- memset(mgmt->da, 0xff, ETH_ALEN);
- memset(mgmt->bssid, 0xff, ETH_ALEN);
- }
- pos = skb_put(skb, 2 + ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ssid_len;
- memcpy(pos, ssid, ssid_len);
-
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
+ ifsta->assocresp_ies_len), GFP_KERNEL);
+ if (!buf)
+ return;
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *rate = &sband->bitrates[i];
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
+ len = sprintf(buf, "ASSOCINFO(");
+ if (ifsta->assocreq_ies) {
+ len += sprintf(buf + len, "ReqIEs=");
+ for (i = 0; i < ifsta->assocreq_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocreq_ies[i]);
}
- *pos = rate->bitrate / 5;
}
+ if (ifsta->assocresp_ies) {
+ if (ifsta->assocreq_ies)
+ len += sprintf(buf + len, " ");
+ len += sprintf(buf + len, "RespIEs=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+ len += sprintf(buf + len, ")");
- ieee80211_sta_tx(dev, skb, 0);
-}
+ if (len > IW_CUSTOM_MAX) {
+ len = sprintf(buf, "ASSOCRESPIE=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+ if (len <= IW_CUSTOM_MAX) {
+ memset(&wrqu, 0, sizeof(wrqu));
+ wrqu.data.length = len;
+ wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
+ }
-static int ieee80211_sta_wep_configured(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!sdata || !sdata->default_key ||
- sdata->default_key->conf.alg != ALG_WEP)
- return 0;
- return 1;
+ kfree(buf);
}
-static void ieee80211_auth_completed(struct net_device *dev,
+static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
- printk(KERN_DEBUG "%s: authenticated\n", dev->name);
- ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
- ieee80211_associate(dev, ifsta);
-}
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local_to_hw(local)->conf;
+ u32 changed = BSS_CHANGED_ASSOC;
+ struct ieee80211_bss *bss;
-static void ieee80211_auth_challenge(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u8 *pos;
- struct ieee802_11_elems elems;
+ ifsta->flags |= IEEE80211_STA_ASSOCIATED;
- pos = mgmt->u.auth.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
- if (!elems.challenge)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
return;
- ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2,
- elems.challenge_len + 2, 1);
-}
-static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid,
- u8 dialog_token, u16 status, u16 policy,
- u16 buf_size, u16 timeout)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 capab;
+ bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+ conf->channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
+ if (bss) {
+ /* set timing information */
+ sdata->bss_conf.beacon_int = bss->beacon_int;
+ sdata->bss_conf.timestamp = bss->timestamp;
+ sdata->bss_conf.dtim_period = bss->dtim_period;
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+ changed |= ieee80211_handle_bss_capability(sdata, bss);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer "
- "for addba resp frame\n", dev->name);
- return;
+ ieee80211_rx_bss_put(local, bss);
}
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
+ if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ changed |= BSS_CHANGED_HT;
+ sdata->bss_conf.assoc_ht = 1;
+ sdata->bss_conf.ht_conf = &conf->ht_conf;
+ sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
+ }
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
- mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
+ ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
+ memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
+ ieee80211_sta_send_associnfo(sdata, ifsta);
- capab = (u16)(policy << 1); /* bit 1 aggregation policy */
- capab |= (u16)(tid << 2); /* bit 5:2 TID number */
- capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */
+ ifsta->last_probe = jiffies;
+ ieee80211_led_assoc(local, 1);
- mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
- mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
- mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
+ sdata->bss_conf.assoc = 1;
+ /*
+ * For now just always ask the driver to update the basic rateset
+ * when we have associated, we aren't checking whether it actually
+ * changed or not.
+ */
+ changed |= BSS_CHANGED_BASIC_RATES;
+ ieee80211_bss_info_change_notify(sdata, changed);
- ieee80211_sta_tx(dev, skb, 0);
+ netif_tx_start_all_queues(sdata->dev);
+ netif_carrier_on(sdata->dev);
- return;
+ ieee80211_sta_send_apinfo(sdata, ifsta);
}
-void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
- u16 tid, u8 dialog_token, u16 start_seq_num,
- u16 agg_size, u16 timeout)
+static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 capab;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+ DECLARE_MAC_BUF(mac);
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer "
- "for addba request frame\n", dev->name);
+ ifsta->direct_probe_tries++;
+ if (ifsta->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: direct probe to AP %s timed out\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
return;
}
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
+ printk(KERN_DEBUG "%s: direct probe to AP %s try %d\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid),
+ ifsta->direct_probe_tries);
- mgmt->u.action.u.addba_req.dialog_token = dialog_token;
- capab = (u16)(1 << 1); /* bit 1 aggregation policy */
- capab |= (u16)(tid << 2); /* bit 5:2 TID number */
- capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */
+ ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
- mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
+ set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifsta->request);
- mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
- mgmt->u.action.u.addba_req.start_seq_num =
- cpu_to_le16(start_seq_num << 4);
+ /* Direct probe is sent to broadcast address as some APs
+ * will not answer to direct packet in unassociated state.
+ */
+ ieee80211_send_probe_req(sdata, NULL,
+ ifsta->ssid, ifsta->ssid_len);
- ieee80211_sta_tx(dev, skb, 0);
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
}
-static void ieee80211_sta_process_addba_request(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+
+static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct ieee80211_conf *conf = &hw->conf;
- struct sta_info *sta;
- struct tid_ampdu_rx *tid_agg_rx;
- u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
- u8 dialog_token;
- int ret = -EOPNOTSUPP;
DECLARE_MAC_BUF(mac);
- rcu_read_lock();
-
- sta = sta_info_get(local, mgmt->sa);
- if (!sta) {
- rcu_read_unlock();
+ ifsta->auth_tries++;
+ if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: authentication with AP %s"
+ " timed out\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
return;
}
- /* extract session parameters from addba request frame */
- dialog_token = mgmt->u.action.u.addba_req.dialog_token;
- timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
- start_seq_num =
- le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
-
- capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
- ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
- tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
- buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
-
- status = WLAN_STATUS_REQUEST_DECLINED;
-
- /* sanity check for incoming parameters:
- * check if configuration can support the BA policy
- * and if buffer size does not exceeds max value */
- if (((ba_policy != 1)
- && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
- || (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
- status = WLAN_STATUS_INVALID_QOS_PARAM;
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "AddBA Req with bad params from "
- "%s on tid %u. policy %d, buffer size %d\n",
- print_mac(mac, mgmt->sa), tid, ba_policy,
- buf_size);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto end_no_lock;
- }
- /* determine default buffer size */
- if (buf_size == 0) {
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[conf->channel->band];
- buf_size = IEEE80211_MIN_AMPDU_BUF;
- buf_size = buf_size << sband->ht_info.ampdu_factor;
- }
-
-
- /* examine state machine */
- spin_lock_bh(&sta->lock);
+ ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+ printk(KERN_DEBUG "%s: authenticate with AP %s\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
- if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "unexpected AddBA Req from "
- "%s on tid %u\n",
- print_mac(mac, mgmt->sa), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto end;
- }
+ ieee80211_send_auth(sdata, ifsta, 1, NULL, 0, 0);
- /* prepare A-MPDU MLME for Rx aggregation */
- sta->ampdu_mlme.tid_rx[tid] =
- kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
- if (!sta->ampdu_mlme.tid_rx[tid]) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
- tid);
-#endif
- goto end;
- }
- /* rx timer */
- sta->ampdu_mlme.tid_rx[tid]->session_timer.function =
- sta_rx_agg_session_timer_expired;
- sta->ampdu_mlme.tid_rx[tid]->session_timer.data =
- (unsigned long)&sta->timer_to_tid[tid];
- init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
-
- tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
-
- /* prepare reordering buffer */
- tid_agg_rx->reorder_buf =
- kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
- if (!tid_agg_rx->reorder_buf) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_ERR "can not allocate reordering buffer "
- "to tid %d\n", tid);
-#endif
- kfree(sta->ampdu_mlme.tid_rx[tid]);
- goto end;
- }
- memset(tid_agg_rx->reorder_buf, 0,
- buf_size * sizeof(struct sk_buff *));
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
- sta->addr, tid, &start_seq_num);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- if (ret) {
- kfree(tid_agg_rx->reorder_buf);
- kfree(tid_agg_rx);
- sta->ampdu_mlme.tid_rx[tid] = NULL;
- goto end;
- }
-
- /* change state and send addba resp */
- sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL;
- tid_agg_rx->dialog_token = dialog_token;
- tid_agg_rx->ssn = start_seq_num;
- tid_agg_rx->head_seq_num = start_seq_num;
- tid_agg_rx->buf_size = buf_size;
- tid_agg_rx->timeout = timeout;
- tid_agg_rx->stored_mpdu_num = 0;
- status = WLAN_STATUS_SUCCESS;
-end:
- spin_unlock_bh(&sta->lock);
-
-end_no_lock:
- ieee80211_send_addba_resp(sta->sdata->dev, sta->addr, tid,
- dialog_token, status, 1, buf_size, timeout);
- rcu_read_unlock();
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
}
-static void ieee80211_sta_process_addba_resp(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta, bool deauth,
+ bool self_disconnected, u16 reason)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
+ struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- u16 capab;
- u16 tid;
- u8 *state;
+ u32 changed = BSS_CHANGED_ASSOC;
rcu_read_lock();
- sta = sta_info_get(local, mgmt->sa);
+ sta = sta_info_get(local, ifsta->bssid);
if (!sta) {
rcu_read_unlock();
return;
}
- capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
- tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+ if (deauth) {
+ ifsta->direct_probe_tries = 0;
+ ifsta->auth_tries = 0;
+ }
+ ifsta->assoc_scan_tries = 0;
+ ifsta->assoc_tries = 0;
- state = &sta->ampdu_mlme.tid_state_tx[tid];
+ netif_tx_stop_all_queues(sdata->dev);
+ netif_carrier_off(sdata->dev);
- spin_lock_bh(&sta->lock);
+ ieee80211_sta_tear_down_BA_sessions(sdata, sta->sta.addr);
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- spin_unlock_bh(&sta->lock);
- goto addba_resp_exit;
+ if (self_disconnected) {
+ if (deauth)
+ ieee80211_send_deauth_disassoc(sdata,
+ IEEE80211_STYPE_DEAUTH, reason);
+ else
+ ieee80211_send_deauth_disassoc(sdata,
+ IEEE80211_STYPE_DISASSOC, reason);
}
- if (mgmt->u.action.u.addba_resp.dialog_token !=
- sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
- spin_unlock_bh(&sta->lock);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto addba_resp_exit;
- }
+ ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+ changed |= ieee80211_reset_erp_info(sdata);
- del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
- == WLAN_STATUS_SUCCESS) {
- *state |= HT_ADDBA_RECEIVED_MSK;
- sta->ampdu_mlme.addba_req_num[tid] = 0;
+ if (sdata->bss_conf.assoc_ht)
+ changed |= BSS_CHANGED_HT;
- if (*state == HT_AGG_STATE_OPERATIONAL)
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+ sdata->bss_conf.assoc_ht = 0;
+ sdata->bss_conf.ht_conf = NULL;
+ sdata->bss_conf.ht_bss_conf = NULL;
- spin_unlock_bh(&sta->lock);
- } else {
- sta->ampdu_mlme.addba_req_num[tid]++;
- /* this will allow the state check in stop_BA_session */
- *state = HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->lock);
- ieee80211_stop_tx_ba_session(hw, sta->addr, tid,
- WLAN_BACK_INITIATOR);
- }
+ ieee80211_led_assoc(local, 0);
+ sdata->bss_conf.assoc = 0;
+
+ ieee80211_sta_send_apinfo(sdata, ifsta);
+
+ if (self_disconnected)
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
+
+ sta_info_unlink(&sta);
-addba_resp_exit:
rcu_read_unlock();
+
+ sta_info_destroy(sta);
}
-void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
- u16 initiator, u16 reason_code)
+static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 params;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer "
- "for delba frame\n", dev->name);
- return;
- }
+ if (!sdata || !sdata->default_key ||
+ sdata->default_key->conf.alg != ALG_WEP)
+ return 0;
+ return 1;
+}
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
+static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_bss *bss;
+ int bss_privacy;
+ int wep_privacy;
+ int privacy_invoked;
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
+ if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
+ return 0;
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
- params = (u16)(initiator << 11); /* bit 11 initiator */
- params |= (u16)(tid << 12); /* bit 15:12 TID number */
+ bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+ local->hw.conf.channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
+ if (!bss)
+ return 0;
- mgmt->u.action.u.delba.params = cpu_to_le16(params);
- mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
+ bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY);
+ wep_privacy = !!ieee80211_sta_wep_configured(sdata);
+ privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
- ieee80211_sta_tx(dev, skb, 0);
-}
+ ieee80211_rx_bss_put(local, bss);
-void ieee80211_send_bar(struct net_device *dev, u8 *ra, u16 tid, u16 ssn)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_bar *bar;
- u16 bar_control = 0;
+ if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
+ return 0;
- skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom);
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer for "
- "bar frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
- bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar));
- memset(bar, 0, sizeof(*bar));
- bar->frame_control = IEEE80211_FC(IEEE80211_FTYPE_CTL,
- IEEE80211_STYPE_BACK_REQ);
- memcpy(bar->ra, ra, ETH_ALEN);
- memcpy(bar->ta, dev->dev_addr, ETH_ALEN);
- bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL;
- bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA;
- bar_control |= (u16)(tid << 12);
- bar->control = cpu_to_le16(bar_control);
- bar->start_seq_num = cpu_to_le16(ssn);
-
- ieee80211_sta_tx(dev, skb, 0);
+ return 1;
}
-void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
- u16 initiator, u16 reason)
+static void ieee80211_associate(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sta_info *sta;
- int ret, i;
DECLARE_MAC_BUF(mac);
- rcu_read_lock();
-
- sta = sta_info_get(local, ra);
- if (!sta) {
- rcu_read_unlock();
+ ifsta->assoc_tries++;
+ if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: association with AP %s"
+ " timed out\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
return;
}
- /* check if TID is in operational state */
- spin_lock_bh(&sta->lock);
- if (sta->ampdu_mlme.tid_state_rx[tid]
- != HT_AGG_STATE_OPERATIONAL) {
- spin_unlock_bh(&sta->lock);
- rcu_read_unlock();
+ ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
+ printk(KERN_DEBUG "%s: associate with AP %s\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+ printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
+ "mixed-cell disabled - abort association\n", sdata->dev->name);
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
return;
}
- sta->ampdu_mlme.tid_state_rx[tid] =
- HT_AGG_STATE_REQ_STOP_BA_MSK |
- (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
- spin_unlock_bh(&sta->lock);
-
- /* stop HW Rx aggregation. ampdu_action existence
- * already verified in session init so we add the BUG_ON */
- BUG_ON(!local->ops->ampdu_action);
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
- ra, tid, NULL);
- if (ret)
- printk(KERN_DEBUG "HW problem - can not stop rx "
- "aggregation for tid %d\n", tid);
-
- /* shutdown timer has not expired */
- if (initiator != WLAN_BACK_TIMER)
- del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
-
- /* check if this is a self generated aggregation halt */
- if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
- ieee80211_send_delba(dev, ra, tid, 0, reason);
-
- /* free the reordering buffer */
- for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
- if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) {
- /* release the reordered frames */
- dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]);
- sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--;
- sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL;
- }
- }
- /* free resources */
- kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
- kfree(sta->ampdu_mlme.tid_rx[tid]);
- sta->ampdu_mlme.tid_rx[tid] = NULL;
- sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
- rcu_read_unlock();
+ ieee80211_send_assoc(sdata, ifsta);
+
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
}
-static void ieee80211_sta_process_delba(struct net_device *dev,
- struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- u16 tid, params;
- u16 initiator;
+ int disassoc;
DECLARE_MAC_BUF(mac);
- rcu_read_lock();
-
- sta = sta_info_get(local, mgmt->sa);
- if (!sta) {
- rcu_read_unlock();
- return;
- }
-
- params = le16_to_cpu(mgmt->u.action.u.delba.params);
- tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
- initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
- print_mac(mac, mgmt->sa),
- initiator ? "initiator" : "recipient", tid,
- mgmt->u.action.u.delba.reason_code);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- if (initiator == WLAN_BACK_INITIATOR)
- ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
- WLAN_BACK_INITIATOR, 0);
- else { /* WLAN_BACK_RECIPIENT */
- spin_lock_bh(&sta->lock);
- sta->ampdu_mlme.tid_state_tx[tid] =
- HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->lock);
- ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
- WLAN_BACK_RECIPIENT);
- }
- rcu_read_unlock();
-}
+ /* TODO: start monitoring current AP signal quality and number of
+ * missed beacons. Scan other channels every now and then and search
+ * for better APs. */
+ /* TODO: remove expired BSSes */
-/*
- * After sending add Block Ack request we activated a timer until
- * add Block Ack response will arrive from the recipient.
- * If this timer expires sta_addba_resp_timer_expired will be executed.
- */
-void sta_addba_resp_timer_expired(unsigned long data)
-{
- /* not an elegant detour, but there is no choice as the timer passes
- * only one argument, and both sta_info and TID are needed, so init
- * flow in sta_info_create gives the TID as data, while the timer_to_id
- * array gives the sta through container_of */
- u16 tid = *(u8 *)data;
- struct sta_info *temp_sta = container_of((void *)data,
- struct sta_info, timer_to_tid[tid]);
-
- struct ieee80211_local *local = temp_sta->local;
- struct ieee80211_hw *hw = &local->hw;
- struct sta_info *sta;
- u8 *state;
+ ifsta->state = IEEE80211_STA_MLME_ASSOCIATED;
rcu_read_lock();
- sta = sta_info_get(local, temp_sta->addr);
+ sta = sta_info_get(local, ifsta->bssid);
if (!sta) {
- rcu_read_unlock();
- return;
- }
-
- state = &sta->ampdu_mlme.tid_state_tx[tid];
- /* check if the TID waits for addBA response */
- spin_lock_bh(&sta->lock);
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- spin_unlock_bh(&sta->lock);
- *state = HT_AGG_STATE_IDLE;
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "timer expired on tid %d but we are not "
- "expecting addBA response there", tid);
-#endif
- goto timer_expired_exit;
+ printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ disassoc = 1;
+ } else {
+ disassoc = 0;
+ if (time_after(jiffies,
+ sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+ if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
+ printk(KERN_DEBUG "%s: No ProbeResp from "
+ "current AP %s - assume out of "
+ "range\n",
+ sdata->dev->name, print_mac(mac, ifsta->bssid));
+ disassoc = 1;
+ } else
+ ieee80211_send_probe_req(sdata, ifsta->bssid,
+ ifsta->ssid,
+ ifsta->ssid_len);
+ ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
+ } else {
+ ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+ if (time_after(jiffies, ifsta->last_probe +
+ IEEE80211_PROBE_INTERVAL)) {
+ ifsta->last_probe = jiffies;
+ ieee80211_send_probe_req(sdata, ifsta->bssid,
+ ifsta->ssid,
+ ifsta->ssid_len);
+ }
+ }
}
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
-#endif
-
- /* go through the state check in stop_BA_session */
- *state = HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->lock);
- ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid,
- WLAN_BACK_INITIATOR);
-
-timer_expired_exit:
rcu_read_unlock();
-}
-/*
- * After accepting the AddBA Request we activated a timer,
- * resetting it after each frame that arrives from the originator.
- * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
- */
-static void sta_rx_agg_session_timer_expired(unsigned long data)
-{
- /* not an elegant detour, but there is no choice as the timer passes
- * only one argument, and various sta_info are needed here, so init
- * flow in sta_info_create gives the TID as data, while the timer_to_id
- * array gives the sta through container_of */
- u8 *ptid = (u8 *)data;
- u8 *timer_to_id = ptid - *ptid;
- struct sta_info *sta = container_of(timer_to_id, struct sta_info,
- timer_to_tid[0]);
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
-#endif
- ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
- (u16)*ptid, WLAN_BACK_TIMER,
- WLAN_REASON_QSTA_TIMEOUT);
+ if (disassoc)
+ ieee80211_set_disassoc(sdata, ifsta, true, true,
+ WLAN_REASON_PREV_AUTH_NOT_VALID);
+ else
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MONITORING_INTERVAL);
}
-void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int i;
- for (i = 0; i < STA_TID_NUM; i++) {
- ieee80211_stop_tx_ba_session(&local->hw, addr, i,
- WLAN_BACK_INITIATOR);
- ieee80211_sta_stop_rx_ba_session(dev, addr, i,
- WLAN_BACK_RECIPIENT,
- WLAN_REASON_QSTA_LEAVE_QBSS);
- }
+static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
+{
+ printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
+ ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
+ ieee80211_associate(sdata, ifsta);
}
-static void ieee80211_send_refuse_measurement_request(struct net_device *dev,
- struct ieee80211_msrment_ie *request_ie,
- const u8 *da, const u8 *bssid,
- u8 dialog_token)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *msr_report;
- skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
- sizeof(struct ieee80211_msrment_ie));
+static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u8 *pos;
+ struct ieee802_11_elems elems;
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer for "
- "measurement report frame\n", dev->name);
+ pos = mgmt->u.auth.variable;
+ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+ if (!elems.challenge)
return;
- }
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
- msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24);
- memset(msr_report, 0, 24);
- memcpy(msr_report->da, da, ETH_ALEN);
- memcpy(msr_report->sa, dev->dev_addr, ETH_ALEN);
- memcpy(msr_report->bssid, bssid, ETH_ALEN);
- msr_report->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement));
- msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
- msr_report->u.action.u.measurement.action_code =
- WLAN_ACTION_SPCT_MSR_RPRT;
- msr_report->u.action.u.measurement.dialog_token = dialog_token;
-
- msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT;
- msr_report->u.action.u.measurement.length =
- sizeof(struct ieee80211_msrment_ie);
-
- memset(&msr_report->u.action.u.measurement.msr_elem, 0,
- sizeof(struct ieee80211_msrment_ie));
- msr_report->u.action.u.measurement.msr_elem.token = request_ie->token;
- msr_report->u.action.u.measurement.msr_elem.mode |=
- IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
- msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-static void ieee80211_sta_process_measurement_req(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- /*
- * Ignoring measurement request is spec violation.
- * Mandatory measurements must be reported optional
- * measurements might be refused or reported incapable
- * For now just refuse
- * TODO: Answer basic measurement as unmeasured
- */
- ieee80211_send_refuse_measurement_request(dev,
- &mgmt->u.action.u.measurement.msr_elem,
- mgmt->sa, mgmt->bssid,
- mgmt->u.action.u.measurement.dialog_token);
+ ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2,
+ elems.challenge_len + 2, 1);
}
-
-static void ieee80211_rx_mgmt_auth(struct net_device *dev,
+static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
u16 auth_alg, auth_transaction, status_code;
DECLARE_MAC_BUF(mac);
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+ if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
return;
if (len < 24 + 6)
return;
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0)
return;
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
@@ -1870,7 +1053,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
status_code = le16_to_cpu(mgmt->u.auth.status_code);
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
/*
* IEEE 802.11 standard does not require authentication in IBSS
* networks and most implementations do not seem to use it.
@@ -1879,7 +1062,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
*/
if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
return;
- ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0);
+ ieee80211_send_auth(sdata, ifsta, 2, NULL, 0, 0);
}
if (auth_alg != ifsta->auth_alg ||
@@ -1912,7 +1095,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
algs[pos] == 0xff)
continue;
if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
- !ieee80211_sta_wep_configured(dev))
+ !ieee80211_sta_wep_configured(sdata))
continue;
ifsta->auth_alg = algs[pos];
break;
@@ -1924,19 +1107,19 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
switch (ifsta->auth_alg) {
case WLAN_AUTH_OPEN:
case WLAN_AUTH_LEAP:
- ieee80211_auth_completed(dev, ifsta);
+ ieee80211_auth_completed(sdata, ifsta);
break;
case WLAN_AUTH_SHARED_KEY:
if (ifsta->auth_transaction == 4)
- ieee80211_auth_completed(dev, ifsta);
+ ieee80211_auth_completed(sdata, ifsta);
else
- ieee80211_auth_challenge(dev, ifsta, mgmt, len);
+ ieee80211_auth_challenge(sdata, ifsta, mgmt, len);
break;
}
}
-static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
+static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
@@ -1953,22 +1136,22 @@ static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
if (ifsta->flags & IEEE80211_STA_AUTHENTICATED)
- printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
+ printk(KERN_DEBUG "%s: deauthenticated\n", sdata->dev->name);
- if (ifsta->state == IEEE80211_AUTHENTICATE ||
- ifsta->state == IEEE80211_ASSOCIATE ||
- ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_AUTHENTICATE;
+ if (ifsta->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+ ifsta->state == IEEE80211_STA_MLME_ASSOCIATE ||
+ ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
+ ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
mod_timer(&ifsta->timer, jiffies +
IEEE80211_RETRY_AUTH_INTERVAL);
}
- ieee80211_set_disassoc(dev, ifsta, 1);
+ ieee80211_set_disassoc(sdata, ifsta, true, false, 0);
ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
}
-static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
+static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
@@ -1985,15 +1168,15 @@ static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
- printk(KERN_DEBUG "%s: disassociated\n", dev->name);
+ printk(KERN_DEBUG "%s: disassociated\n", sdata->dev->name);
- if (ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_ASSOCIATE;
+ if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
+ ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
mod_timer(&ifsta->timer, jiffies +
IEEE80211_RETRY_AUTH_INTERVAL);
}
- ieee80211_set_disassoc(dev, ifsta, 0);
+ ieee80211_set_disassoc(sdata, ifsta, false, false, 0);
}
@@ -2004,7 +1187,6 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
int reassoc)
{
struct ieee80211_local *local = sdata->local;
- struct net_device *dev = sdata->dev;
struct ieee80211_supported_band *sband;
struct sta_info *sta;
u64 rates, basic_rates;
@@ -2019,7 +1201,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
/* AssocResp and ReassocResp have identical structure, so process both
* of them in this function. */
- if (ifsta->state != IEEE80211_ASSOCIATE)
+ if (ifsta->state != IEEE80211_STA_MLME_ASSOCIATE)
return;
if (len < 24 + 6)
@@ -2034,12 +1216,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
printk(KERN_DEBUG "%s: RX %sssocResp from %s (capab=0x%x "
"status=%d aid=%d)\n",
- dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa),
+ sdata->dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa),
capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
if (status_code != WLAN_STATUS_SUCCESS) {
printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
- dev->name, status_code);
+ sdata->dev->name, status_code);
/* if this was a reassociation, ensure we try a "full"
* association next time. This works around some broken APs
* which do not correctly reject reassociation requests. */
@@ -2049,7 +1231,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
- "set\n", dev->name, aid);
+ "set\n", sdata->dev->name, aid);
aid &= ~(BIT(15) | BIT(14));
pos = mgmt->u.assoc_resp.variable;
@@ -2057,11 +1239,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
if (!elems.supp_rates) {
printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
- dev->name);
+ sdata->dev->name);
return;
}
- printk(KERN_DEBUG "%s: associated\n", dev->name);
+ printk(KERN_DEBUG "%s: associated\n", sdata->dev->name);
ifsta->aid = aid;
ifsta->ap_capab = capab_info;
@@ -2076,17 +1258,17 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
/* Add STA entry for the AP */
sta = sta_info_get(local, ifsta->bssid);
if (!sta) {
- struct ieee80211_sta_bss *bss;
+ struct ieee80211_bss *bss;
int err;
sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC);
if (!sta) {
printk(KERN_DEBUG "%s: failed to alloc STA entry for"
- " the AP\n", dev->name);
+ " the AP\n", sdata->dev->name);
rcu_read_unlock();
return;
}
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
+ bss = ieee80211_rx_bss_get(local, ifsta->bssid,
local->hw.conf.channel->center_freq,
ifsta->ssid, ifsta->ssid_len);
if (bss) {
@@ -2099,7 +1281,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
err = sta_info_insert(sta);
if (err) {
printk(KERN_DEBUG "%s: failed to insert STA entry for"
- " the AP (error %d)\n", dev->name, err);
+ " the AP (error %d)\n", sdata->dev->name, err);
rcu_read_unlock();
return;
}
@@ -2152,8 +1334,8 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
}
}
- sta->supp_rates[local->hw.conf.channel->band] = rates;
- sdata->basic_rates = basic_rates;
+ sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
+ sdata->bss_conf.basic_rates = basic_rates;
/* cf. IEEE 802.11 9.2.12 */
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
@@ -2166,20 +1348,18 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
(ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
struct ieee80211_ht_bss_info bss_info;
ieee80211_ht_cap_ie_to_ht_info(
- (struct ieee80211_ht_cap *)
- elems.ht_cap_elem, &sta->ht_info);
+ elems.ht_cap_elem, &sta->sta.ht_info);
ieee80211_ht_addt_info_ie_to_ht_bss_info(
- (struct ieee80211_ht_addt_info *)
elems.ht_info_elem, &bss_info);
- ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info);
+ ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info);
}
- rate_control_rate_init(sta, local);
+ rate_control_rate_init(sta);
if (elems.wmm_param) {
set_sta_flags(sta, WLAN_STA_WME);
rcu_read_unlock();
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
elems.wmm_param_len);
} else
rcu_read_unlock();
@@ -2188,234 +1368,26 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
* ieee80211_set_associated() will tell the driver */
bss_conf->aid = aid;
bss_conf->assoc_capability = capab_info;
- ieee80211_set_associated(dev, ifsta, 1);
+ ieee80211_set_associated(sdata, ifsta);
- ieee80211_associated(dev, ifsta);
+ ieee80211_associated(sdata, ifsta);
}
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 hash_idx;
-
- if (bss_mesh_cfg(bss))
- hash_idx = mesh_id_hash(bss_mesh_id(bss),
- bss_mesh_id_len(bss));
- else
- hash_idx = STA_HASH(bss->bssid);
-
- bss->hnext = local->sta_bss_hash[hash_idx];
- local->sta_bss_hash[hash_idx] = bss;
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_sta_bss *b, *prev = NULL;
- b = local->sta_bss_hash[STA_HASH(bss->bssid)];
- while (b) {
- if (b == bss) {
- if (!prev)
- local->sta_bss_hash[STA_HASH(bss->bssid)] =
- bss->hnext;
- else
- prev->hnext = bss->hnext;
- break;
- }
- prev = b;
- b = b->hnext;
- }
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
- if (!bss)
- return NULL;
- atomic_inc(&bss->users);
- atomic_inc(&bss->users);
- memcpy(bss->bssid, bssid, ETH_ALEN);
- bss->freq = freq;
- if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
- memcpy(bss->ssid, ssid, ssid_len);
- bss->ssid_len = ssid_len;
- }
-
- spin_lock_bh(&local->sta_bss_lock);
- /* TODO: order by RSSI? */
- list_add_tail(&bss->list, &local->sta_bss_list);
- __ieee80211_rx_bss_hash_add(dev, bss);
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- bss = local->sta_bss_hash[STA_HASH(bssid)];
- while (bss) {
- if (!bss_mesh_cfg(bss) &&
- !memcmp(bss->bssid, bssid, ETH_ALEN) &&
- bss->freq == freq &&
- bss->ssid_len == ssid_len &&
- (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
- atomic_inc(&bss->users);
- break;
- }
- bss = bss->hnext;
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-#ifdef CONFIG_MAC80211_MESH
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_get(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
- u8 *mesh_cfg, int freq)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
- while (bss) {
- if (bss_mesh_cfg(bss) &&
- !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
- bss->freq == freq &&
- mesh_id_len == bss->mesh_id_len &&
- (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
- mesh_id_len))) {
- atomic_inc(&bss->users);
- break;
- }
- bss = bss->hnext;
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_add(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
- u8 *mesh_cfg, int mesh_config_len, int freq)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- if (mesh_config_len != MESH_CFG_LEN)
- return NULL;
-
- bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
- if (!bss)
- return NULL;
-
- bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
- if (!bss->mesh_cfg) {
- kfree(bss);
- return NULL;
- }
-
- if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
- bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
- if (!bss->mesh_id) {
- kfree(bss->mesh_cfg);
- kfree(bss);
- return NULL;
- }
- memcpy(bss->mesh_id, mesh_id, mesh_id_len);
- }
-
- atomic_inc(&bss->users);
- atomic_inc(&bss->users);
- memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
- bss->mesh_id_len = mesh_id_len;
- bss->freq = freq;
- spin_lock_bh(&local->sta_bss_lock);
- /* TODO: order by RSSI? */
- list_add_tail(&bss->list, &local->sta_bss_list);
- __ieee80211_rx_bss_hash_add(dev, bss);
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-#endif
-
-static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
-{
- kfree(bss->wpa_ie);
- kfree(bss->rsn_ie);
- kfree(bss->wmm_ie);
- kfree(bss->ht_ie);
- kfree(bss->ht_add_ie);
- kfree(bss_mesh_id(bss));
- kfree(bss_mesh_cfg(bss));
- kfree(bss);
-}
-
-
-static void ieee80211_rx_bss_put(struct ieee80211_local *local,
- struct ieee80211_sta_bss *bss)
-{
- local_bh_disable();
- if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
- local_bh_enable();
- return;
- }
-
- __ieee80211_rx_bss_hash_del(local, bss);
- list_del(&bss->list);
- spin_unlock_bh(&local->sta_bss_lock);
- ieee80211_rx_bss_free(bss);
-}
-
-
-void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
-{
- spin_lock_init(&local->sta_bss_lock);
- INIT_LIST_HEAD(&local->sta_bss_list);
-}
-
-
-void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
-{
- struct ieee80211_sta_bss *bss, *tmp;
-
- list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
- ieee80211_rx_bss_put(local, bss);
-}
-
-
-static int ieee80211_sta_join_ibss(struct net_device *dev,
+static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
- struct ieee80211_sta_bss *bss)
+ struct ieee80211_bss *bss)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
int res, rates, i, j;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
u8 *pos;
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_supported_band *sband;
union iwreq_data wrqu;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
/* Remove possible STA entries from other IBSS networks. */
sta_info_flush_delayed(sdata);
@@ -2433,7 +1405,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
sdata->drop_unencrypted = bss->capability &
WLAN_CAPABILITY_PRIVACY ? 1 : 0;
- res = ieee80211_set_freq(dev, bss->freq);
+ res = ieee80211_set_freq(sdata, bss->freq);
if (res)
return res;
@@ -2446,10 +1418,10 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 24 + sizeof(mgmt->u.beacon));
memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_RESP);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_PROBE_RESP);
memset(mgmt->da, 0xff, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
mgmt->u.beacon.beacon_int =
cpu_to_le16(local->hw.conf.beacon_int);
@@ -2506,108 +1478,38 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
}
ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
- ieee80211_sta_def_wmm_params(dev, bss, 1);
+ ieee80211_sta_def_wmm_params(sdata, bss);
- ifsta->state = IEEE80211_IBSS_JOINED;
+ ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+ ieee80211_led_assoc(local, true);
+
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN);
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+ wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
return res;
}
-u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
- struct ieee802_11_elems *elems,
- enum ieee80211_band band)
-{
- struct ieee80211_supported_band *sband;
- struct ieee80211_rate *bitrates;
- size_t num_rates;
- u64 supp_rates;
- int i, j;
- sband = local->hw.wiphy->bands[band];
-
- if (!sband) {
- WARN_ON(1);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- }
-
- bitrates = sband->bitrates;
- num_rates = sband->n_bitrates;
- supp_rates = 0;
- for (i = 0; i < elems->supp_rates_len +
- elems->ext_supp_rates_len; i++) {
- u8 rate = 0;
- int own_rate;
- if (i < elems->supp_rates_len)
- rate = elems->supp_rates[i];
- else if (elems->ext_supp_rates)
- rate = elems->ext_supp_rates
- [i - elems->supp_rates_len];
- own_rate = 5 * (rate & 0x7f);
- for (j = 0; j < num_rates; j++)
- if (bitrates[j].bitrate == own_rate)
- supp_rates |= BIT(j);
- }
- return supp_rates;
-}
-
-
-static void ieee80211_rx_bss_info(struct net_device *dev,
+static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status,
struct ieee802_11_elems *elems,
- int beacon)
+ bool beacon)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int freq, clen;
- struct ieee80211_sta_bss *bss;
+ struct ieee80211_local *local = sdata->local;
+ int freq;
+ struct ieee80211_bss *bss;
struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u64 beacon_timestamp, rx_timestamp;
struct ieee80211_channel *channel;
+ u64 beacon_timestamp, rx_timestamp;
+ u64 supp_rates = 0;
+ enum ieee80211_band band = rx_status->band;
DECLARE_MAC_BUF(mac);
DECLARE_MAC_BUF(mac2);
- if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN))
- return; /* ignore ProbeResp to foreign address */
-
- beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
-
- if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id &&
- elems->mesh_config && mesh_matches_local(elems, dev)) {
- u64 rates = ieee80211_sta_get_rates(local, elems,
- rx_status->band);
-
- mesh_neighbour_update(mgmt->sa, rates, dev,
- mesh_peer_accepts_plinks(elems, dev));
- }
-
- rcu_read_lock();
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems->supp_rates &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
- (sta = sta_info_get(local, mgmt->sa))) {
- u64 prev_rates;
- u64 supp_rates = ieee80211_sta_get_rates(local, elems,
- rx_status->band);
-
- prev_rates = sta->supp_rates[rx_status->band];
- sta->supp_rates[rx_status->band] &= supp_rates;
- if (sta->supp_rates[rx_status->band] == 0) {
- /* No matching rates - this should not really happen.
- * Make sure that at least one rate is marked
- * supported to avoid issues with TX rate ctrl. */
- sta->supp_rates[rx_status->band] =
- sdata->u.sta.supp_rates_bits[rx_status->band];
- }
- }
-
- rcu_read_unlock();
-
if (elems->ds_params && elems->ds_params_len == 1)
freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
else
@@ -2618,215 +1520,60 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
-#ifdef CONFIG_MAC80211_MESH
- if (elems->mesh_config)
- bss = ieee80211_rx_mesh_bss_get(dev, elems->mesh_id,
- elems->mesh_id_len, elems->mesh_config, freq);
- else
-#endif
- bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq,
- elems->ssid, elems->ssid_len);
- if (!bss) {
-#ifdef CONFIG_MAC80211_MESH
- if (elems->mesh_config)
- bss = ieee80211_rx_mesh_bss_add(dev, elems->mesh_id,
- elems->mesh_id_len, elems->mesh_config,
- elems->mesh_config_len, freq);
- else
-#endif
- bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq,
- elems->ssid, elems->ssid_len);
- if (!bss)
- return;
- } else {
-#if 0
- /* TODO: order by RSSI? */
- spin_lock_bh(&local->sta_bss_lock);
- list_move_tail(&bss->list, &local->sta_bss_list);
- spin_unlock_bh(&local->sta_bss_lock);
-#endif
- }
-
- /* save the ERP value so that it is available at association time */
- if (elems->erp_info && elems->erp_info_len >= 1) {
- bss->erp_value = elems->erp_info[0];
- bss->has_erp_value = 1;
- }
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC && elems->supp_rates &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
+ supp_rates = ieee80211_sta_get_rates(local, elems, band);
- if (elems->ht_cap_elem &&
- (!bss->ht_ie || bss->ht_ie_len != elems->ht_cap_elem_len ||
- memcmp(bss->ht_ie, elems->ht_cap_elem, elems->ht_cap_elem_len))) {
- kfree(bss->ht_ie);
- bss->ht_ie = kmalloc(elems->ht_cap_elem_len + 2, GFP_ATOMIC);
- if (bss->ht_ie) {
- memcpy(bss->ht_ie, elems->ht_cap_elem - 2,
- elems->ht_cap_elem_len + 2);
- bss->ht_ie_len = elems->ht_cap_elem_len + 2;
- } else
- bss->ht_ie_len = 0;
- } else if (!elems->ht_cap_elem && bss->ht_ie) {
- kfree(bss->ht_ie);
- bss->ht_ie = NULL;
- bss->ht_ie_len = 0;
- }
+ rcu_read_lock();
- if (elems->ht_info_elem &&
- (!bss->ht_add_ie ||
- bss->ht_add_ie_len != elems->ht_info_elem_len ||
- memcmp(bss->ht_add_ie, elems->ht_info_elem,
- elems->ht_info_elem_len))) {
- kfree(bss->ht_add_ie);
- bss->ht_add_ie =
- kmalloc(elems->ht_info_elem_len + 2, GFP_ATOMIC);
- if (bss->ht_add_ie) {
- memcpy(bss->ht_add_ie, elems->ht_info_elem - 2,
- elems->ht_info_elem_len + 2);
- bss->ht_add_ie_len = elems->ht_info_elem_len + 2;
- } else
- bss->ht_add_ie_len = 0;
- } else if (!elems->ht_info_elem && bss->ht_add_ie) {
- kfree(bss->ht_add_ie);
- bss->ht_add_ie = NULL;
- bss->ht_add_ie_len = 0;
- }
+ sta = sta_info_get(local, mgmt->sa);
+ if (sta) {
+ u64 prev_rates;
- bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
- bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+ prev_rates = sta->sta.supp_rates[band];
+ /* make sure mandatory rates are always added */
+ sta->sta.supp_rates[band] = supp_rates |
+ ieee80211_mandatory_rates(local, band);
- if (elems->tim) {
- struct ieee80211_tim_ie *tim_ie =
- (struct ieee80211_tim_ie *)elems->tim;
- bss->dtim_period = tim_ie->dtim_period;
- }
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ if (sta->sta.supp_rates[band] != prev_rates)
+ printk(KERN_DEBUG "%s: updated supp_rates set "
+ "for %s based on beacon info (0x%llx | "
+ "0x%llx -> 0x%llx)\n",
+ sdata->dev->name,
+ print_mac(mac, sta->sta.addr),
+ (unsigned long long) prev_rates,
+ (unsigned long long) supp_rates,
+ (unsigned long long) sta->sta.supp_rates[band]);
+#endif
+ } else {
+ ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid,
+ mgmt->sa, supp_rates);
+ }
- /* set default value for buggy APs */
- if (!elems->tim || bss->dtim_period == 0)
- bss->dtim_period = 1;
-
- bss->supp_rates_len = 0;
- if (elems->supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems->supp_rates_len)
- clen = elems->supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
- clen);
- bss->supp_rates_len += clen;
- }
- if (elems->ext_supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems->ext_supp_rates_len)
- clen = elems->ext_supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len],
- elems->ext_supp_rates, clen);
- bss->supp_rates_len += clen;
+ rcu_read_unlock();
}
- bss->band = rx_status->band;
+ bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
+ freq, beacon);
+ if (!bss)
+ return;
- bss->timestamp = beacon_timestamp;
- bss->last_update = jiffies;
- bss->signal = rx_status->signal;
- bss->noise = rx_status->noise;
- bss->qual = rx_status->qual;
- if (!beacon && !bss->probe_resp)
- bss->probe_resp = true;
+ /* was just updated in ieee80211_bss_info_update */
+ beacon_timestamp = bss->timestamp;
/*
* In STA mode, the remaining parameters should not be overridden
* by beacons because they're not necessarily accurate there.
*/
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- bss->probe_resp && beacon) {
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+ bss->last_probe_resp && beacon) {
ieee80211_rx_bss_put(local, bss);
return;
}
- if (elems->wpa &&
- (!bss->wpa_ie || bss->wpa_ie_len != elems->wpa_len ||
- memcmp(bss->wpa_ie, elems->wpa, elems->wpa_len))) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = kmalloc(elems->wpa_len + 2, GFP_ATOMIC);
- if (bss->wpa_ie) {
- memcpy(bss->wpa_ie, elems->wpa - 2, elems->wpa_len + 2);
- bss->wpa_ie_len = elems->wpa_len + 2;
- } else
- bss->wpa_ie_len = 0;
- } else if (!elems->wpa && bss->wpa_ie) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = NULL;
- bss->wpa_ie_len = 0;
- }
-
- if (elems->rsn &&
- (!bss->rsn_ie || bss->rsn_ie_len != elems->rsn_len ||
- memcmp(bss->rsn_ie, elems->rsn, elems->rsn_len))) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = kmalloc(elems->rsn_len + 2, GFP_ATOMIC);
- if (bss->rsn_ie) {
- memcpy(bss->rsn_ie, elems->rsn - 2, elems->rsn_len + 2);
- bss->rsn_ie_len = elems->rsn_len + 2;
- } else
- bss->rsn_ie_len = 0;
- } else if (!elems->rsn && bss->rsn_ie) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = NULL;
- bss->rsn_ie_len = 0;
- }
-
- /*
- * Cf.
- * http://www.wipo.int/pctdb/en/wo.jsp?wo=2007047181&IA=WO2007047181&DISPLAY=DESC
- *
- * quoting:
- *
- * In particular, "Wi-Fi CERTIFIED for WMM - Support for Multimedia
- * Applications with Quality of Service in Wi-Fi Networks," Wi- Fi
- * Alliance (September 1, 2004) is incorporated by reference herein.
- * The inclusion of the WMM Parameters in probe responses and
- * association responses is mandatory for WMM enabled networks. The
- * inclusion of the WMM Parameters in beacons, however, is optional.
- */
-
- if (elems->wmm_param &&
- (!bss->wmm_ie || bss->wmm_ie_len != elems->wmm_param_len ||
- memcmp(bss->wmm_ie, elems->wmm_param, elems->wmm_param_len))) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = kmalloc(elems->wmm_param_len + 2, GFP_ATOMIC);
- if (bss->wmm_ie) {
- memcpy(bss->wmm_ie, elems->wmm_param - 2,
- elems->wmm_param_len + 2);
- bss->wmm_ie_len = elems->wmm_param_len + 2;
- } else
- bss->wmm_ie_len = 0;
- } else if (elems->wmm_info &&
- (!bss->wmm_ie || bss->wmm_ie_len != elems->wmm_info_len ||
- memcmp(bss->wmm_ie, elems->wmm_info,
- elems->wmm_info_len))) {
- /* As for certain AP's Fifth bit is not set in WMM IE in
- * beacon frames.So while parsing the beacon frame the
- * wmm_info structure is used instead of wmm_param.
- * wmm_info structure was never used to set bss->wmm_ie.
- * This code fixes this problem by copying the WME
- * information from wmm_info to bss->wmm_ie and enabling
- * n-band association.
- */
- kfree(bss->wmm_ie);
- bss->wmm_ie = kmalloc(elems->wmm_info_len + 2, GFP_ATOMIC);
- if (bss->wmm_ie) {
- memcpy(bss->wmm_ie, elems->wmm_info - 2,
- elems->wmm_info_len + 2);
- bss->wmm_ie_len = elems->wmm_info_len + 2;
- } else
- bss->wmm_ie_len = 0;
- } else if (!elems->wmm_param && !elems->wmm_info && bss->wmm_ie) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = NULL;
- bss->wmm_ie_len = 0;
- }
-
/* check if we need to merge IBSS */
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
- !local->sta_sw_scanning && !local->sta_hw_scanning &&
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC && beacon &&
bss->capability & WLAN_CAPABILITY_IBSS &&
bss->freq == local->oper_channel->center_freq &&
elems->ssid_len == sdata->u.sta.ssid_len &&
@@ -2848,7 +1595,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
* e.g: at 1 MBit that means mactime is 192 usec earlier
* (=24 bytes * 8 usecs/byte) than the beacon timestamp.
*/
- int rate = local->hw.wiphy->bands[rx_status->band]->
+ int rate = local->hw.wiphy->bands[band]->
bitrates[rx_status->rate_idx].bitrate;
rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
} else if (local && local->ops && local->ops->get_tsf)
@@ -2871,12 +1618,12 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: beacon TSF higher than "
"local TSF - IBSS merge with BSSID %s\n",
- dev->name, print_mac(mac, mgmt->bssid));
+ sdata->dev->name, print_mac(mac, mgmt->bssid));
#endif
- ieee80211_sta_join_ibss(dev, &sdata->u.sta, bss);
- ieee80211_ibss_add_sta(dev, NULL,
+ ieee80211_sta_join_ibss(sdata, &sdata->u.sta, bss);
+ ieee80211_ibss_add_sta(sdata, NULL,
mgmt->bssid, mgmt->sa,
- BIT(rx_status->rate_idx));
+ supp_rates);
}
}
@@ -2884,13 +1631,17 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
}
-static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
+static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status)
{
size_t baselen;
struct ieee802_11_elems elems;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+ return; /* ignore ProbeResp to foreign address */
baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
if (baselen > len)
@@ -2899,20 +1650,27 @@ static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
&elems);
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, &elems, 0);
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
+
+ /* direct probe may be part of the association flow */
+ if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
+ &ifsta->request)) {
+ printk(KERN_DEBUG "%s direct probe responded\n",
+ sdata->dev->name);
+ ieee80211_authenticate(sdata, ifsta);
+ }
}
-static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
+static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_sta *ifsta;
size_t baselen;
struct ieee802_11_elems elems;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_conf *conf = &local->hw.conf;
u32 changed = 0;
@@ -2923,10 +1681,9 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, &elems, 1);
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
return;
ifsta = &sdata->u.sta;
@@ -2934,15 +1691,9 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
elems.wmm_param_len);
- /* Do not send changes to driver if we are scanning. This removes
- * requirement that driver's bss_info_changed function needs to be
- * atomic. */
- if (local->sta_sw_scanning || local->sta_hw_scanning)
- return;
-
if (elems.erp_info && elems.erp_info_len >= 1)
changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
else {
@@ -2956,7 +1707,6 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
struct ieee80211_ht_bss_info bss_info;
ieee80211_ht_addt_info_ie_to_ht_bss_info(
- (struct ieee80211_ht_addt_info *)
elems.ht_info_elem, &bss_info);
changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf,
&bss_info);
@@ -2966,14 +1716,13 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
}
-static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
+static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
int tx_last_beacon;
struct sk_buff *skb;
struct ieee80211_mgmt *resp;
@@ -2984,8 +1733,8 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
DECLARE_MAC_BUF(mac3);
#endif
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS ||
- ifsta->state != IEEE80211_IBSS_JOINED ||
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC ||
+ ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED ||
len < 24 + 2 || !ifsta->probe_resp)
return;
@@ -2997,7 +1746,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: RX ProbeReq SA=%s DA=%s BSSID="
"%s (tx_last_beacon=%d)\n",
- dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da),
+ sdata->dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da),
print_mac(mac3, mgmt->bssid), tx_last_beacon);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
@@ -3015,7 +1764,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
"from %s\n",
- dev->name, print_mac(mac, mgmt->sa));
+ sdata->dev->name, print_mac(mac, mgmt->sa));
#endif
return;
}
@@ -3035,74 +1784,15 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
memcpy(resp->da, mgmt->sa, ETH_ALEN);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n",
- dev->name, print_mac(mac, resp->da));
+ sdata->dev->name, print_mac(mac, resp->da));
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- ieee80211_sta_tx(dev, skb, 0);
+ ieee80211_tx_skb(sdata, skb, 0);
}
-static void ieee80211_rx_mgmt_action(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (len < IEEE80211_MIN_ACTION_SIZE)
- return;
-
- switch (mgmt->u.action.category) {
- case WLAN_CATEGORY_SPECTRUM_MGMT:
- if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
- break;
- switch (mgmt->u.action.u.chan_switch.action_code) {
- case WLAN_ACTION_SPCT_MSR_REQ:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.measurement)))
- break;
- ieee80211_sta_process_measurement_req(dev, mgmt, len);
- break;
- }
- break;
- case WLAN_CATEGORY_BACK:
- switch (mgmt->u.action.u.addba_req.action_code) {
- case WLAN_ACTION_ADDBA_REQ:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_req)))
- break;
- ieee80211_sta_process_addba_request(dev, mgmt, len);
- break;
- case WLAN_ACTION_ADDBA_RESP:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_resp)))
- break;
- ieee80211_sta_process_addba_resp(dev, mgmt, len);
- break;
- case WLAN_ACTION_DELBA:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.delba)))
- break;
- ieee80211_sta_process_delba(dev, mgmt, len);
- break;
- }
- break;
- case PLINK_CATEGORY:
- if (ieee80211_vif_is_mesh(&sdata->vif))
- mesh_rx_plink_frame(dev, mgmt, len, rx_status);
- break;
- case MESH_PATH_SEL_CATEGORY:
- if (ieee80211_vif_is_mesh(&sdata->vif))
- mesh_rx_path_sel_frame(dev, mgmt, len);
- break;
- }
-}
-
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
+void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_if_sta *ifsta;
struct ieee80211_mgmt *mgmt;
u16 fc;
@@ -3110,7 +1800,6 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
if (skb->len < 24)
goto fail;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
ifsta = &sdata->u.sta;
mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -3120,7 +1809,6 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
case IEEE80211_STYPE_PROBE_REQ:
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_ACTION:
memcpy(skb->cb, rx_status, sizeof(*rx_status));
case IEEE80211_STYPE_AUTH:
case IEEE80211_STYPE_ASSOC_RESP:
@@ -3136,17 +1824,14 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
kfree_skb(skb);
}
-
-static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
+static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct ieee80211_rx_status *rx_status;
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_sta *ifsta;
struct ieee80211_mgmt *mgmt;
u16 fc;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
ifsta = &sdata->u.sta;
rx_status = (struct ieee80211_rx_status *) skb->cb;
@@ -3155,17 +1840,17 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len,
+ ieee80211_rx_mgmt_probe_req(sdata, ifsta, mgmt, skb->len,
rx_status);
break;
case IEEE80211_STYPE_PROBE_RESP:
- ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
+ ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, rx_status);
break;
case IEEE80211_STYPE_BEACON:
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
+ ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status);
break;
case IEEE80211_STYPE_AUTH:
- ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
+ ieee80211_rx_mgmt_auth(sdata, ifsta, mgmt, skb->len);
break;
case IEEE80211_STYPE_ASSOC_RESP:
ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0);
@@ -3174,13 +1859,10 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1);
break;
case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
+ ieee80211_rx_mgmt_deauth(sdata, ifsta, mgmt, skb->len);
break;
case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ACTION:
- ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len, rx_status);
+ ieee80211_rx_mgmt_disassoc(sdata, ifsta, mgmt, skb->len);
break;
}
@@ -3188,47 +1870,11 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
}
-ieee80211_rx_result
-ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
+static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_mgmt *mgmt;
- __le16 fc;
-
- if (skb->len < 2)
- return RX_DROP_UNUSABLE;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = mgmt->frame_control;
-
- if (ieee80211_is_ctl(fc))
- return RX_CONTINUE;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- if (ieee80211_is_probe_resp(fc)) {
- ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
- dev_kfree_skb(skb);
- return RX_QUEUED;
- }
-
- if (ieee80211_is_beacon(fc)) {
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
- dev_kfree_skb(skb);
- return RX_QUEUED;
- }
-
- return RX_CONTINUE;
-}
-
-
-static int ieee80211_sta_active_ibss(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
int active = 0;
struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
@@ -3247,179 +1893,36 @@ static int ieee80211_sta_active_ibss(struct net_device *dev)
}
-static void ieee80211_sta_expire(struct net_device *dev, unsigned long exp_time)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta, *tmp;
- LIST_HEAD(tmp_list);
- DECLARE_MAC_BUF(mac);
- unsigned long flags;
-
- spin_lock_irqsave(&local->sta_lock, flags);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (time_after(jiffies, sta->last_rx + exp_time)) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
- dev->name, print_mac(mac, sta->addr));
-#endif
- __sta_info_unlink(&sta);
- if (sta)
- list_add(&sta->list, &tmp_list);
- }
- spin_unlock_irqrestore(&local->sta_lock, flags);
-
- list_for_each_entry_safe(sta, tmp, &tmp_list, list)
- sta_info_destroy(sta);
-}
-
-
-static void ieee80211_sta_merge_ibss(struct net_device *dev,
+static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
- ieee80211_sta_expire(dev, IEEE80211_IBSS_INACTIVITY_LIMIT);
- if (ieee80211_sta_active_ibss(dev))
+ ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+ if (ieee80211_sta_active_ibss(sdata))
return;
printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
- "IBSS networks with same SSID (merge)\n", dev->name);
- ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len);
+ "IBSS networks with same SSID (merge)\n", sdata->dev->name);
+ ieee80211_request_scan(sdata, ifsta->ssid, ifsta->ssid_len);
}
-#ifdef CONFIG_MAC80211_MESH
-static void ieee80211_mesh_housekeeping(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- bool free_plinks;
-
- ieee80211_sta_expire(dev, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
- mesh_path_expire(dev);
-
- free_plinks = mesh_plink_availables(sdata);
- if (free_plinks != sdata->u.sta.accepting_plinks)
- ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
-
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
-}
-
-
-void ieee80211_start_mesh(struct net_device *dev)
-{
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
- ifsta->state = IEEE80211_MESH_UP;
- ieee80211_sta_timer((unsigned long)sdata);
- ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
-}
-#endif
-
-
-void ieee80211_sta_timer(unsigned long data)
+static void ieee80211_sta_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(&sdata->wdev);
+ struct ieee80211_local *local = sdata->local;
set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
queue_work(local->hw.workqueue, &ifsta->work);
}
-void ieee80211_sta_work(struct work_struct *work)
-{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.sta.work);
- struct net_device *dev = sdata->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_sta *ifsta;
- struct sk_buff *skb;
-
- if (!netif_running(dev))
- return;
-
- if (local->sta_sw_scanning || local->sta_hw_scanning)
- return;
-
- if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT))
- return;
- ifsta = &sdata->u.sta;
-
- while ((skb = skb_dequeue(&ifsta->skb_queue)))
- ieee80211_sta_rx_queued_mgmt(dev, skb);
-
-#ifdef CONFIG_MAC80211_MESH
- if (ifsta->preq_queue_len &&
- time_after(jiffies,
- ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
- mesh_path_start_discovery(dev);
-#endif
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- ifsta->state != IEEE80211_ASSOCIATE &&
- test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- if (ifsta->scan_ssid_len)
- ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len);
- else
- ieee80211_sta_start_scan(dev, NULL, 0);
- return;
- }
-
- if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
- if (ieee80211_sta_config_auth(dev, ifsta))
- return;
- clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
- return;
-
- switch (ifsta->state) {
- case IEEE80211_DISABLED:
- break;
- case IEEE80211_AUTHENTICATE:
- ieee80211_authenticate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATE:
- ieee80211_associate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATED:
- ieee80211_associated(dev, ifsta);
- break;
- case IEEE80211_IBSS_SEARCH:
- ieee80211_sta_find_ibss(dev, ifsta);
- break;
- case IEEE80211_IBSS_JOINED:
- ieee80211_sta_merge_ibss(dev, ifsta);
- break;
-#ifdef CONFIG_MAC80211_MESH
- case IEEE80211_MESH_UP:
- ieee80211_mesh_housekeeping(dev, ifsta);
- break;
-#endif
- default:
- WARN_ON(1);
- break;
- }
-
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: privacy configuration mismatch and "
- "mixed-cell disabled - disassociate\n", dev->name);
-
- ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED);
- ieee80211_set_disassoc(dev, ifsta, 0);
- }
-}
-
-
-static void ieee80211_sta_reset_auth(struct net_device *dev,
+static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
if (local->ops->reset_tsf) {
/* Reset own TSF to allow time synchronization work. */
@@ -3439,29 +1942,15 @@ static void ieee80211_sta_reset_auth(struct net_device *dev,
ifsta->auth_alg = WLAN_AUTH_OPEN;
ifsta->auth_transaction = -1;
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- ifsta->auth_tries = ifsta->assoc_tries = 0;
- netif_carrier_off(dev);
+ ifsta->assoc_scan_tries = 0;
+ ifsta->direct_probe_tries = 0;
+ ifsta->auth_tries = 0;
+ ifsta->assoc_tries = 0;
+ netif_tx_stop_all_queues(sdata->dev);
+ netif_carrier_off(sdata->dev);
}
-void ieee80211_sta_req_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return;
-
- if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
- IEEE80211_STA_AUTO_BSSID_SEL)) &&
- (ifsta->flags & (IEEE80211_STA_SSID_SET |
- IEEE80211_STA_AUTO_SSID_SEL))) {
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
- }
-}
-
static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
const char *ssid, int ssid_len)
{
@@ -3492,81 +1981,11 @@ static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
return 0;
}
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_sta_bss *bss, *selected = NULL;
- int top_rssi = 0, freq;
-
- spin_lock_bh(&local->sta_bss_lock);
- freq = local->oper_channel->center_freq;
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (!(bss->capability & WLAN_CAPABILITY_ESS))
- continue;
-
- if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
- (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
- !!sdata->default_key))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
- bss->freq != freq)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
- memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
- !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
- continue;
-
- if (!selected || top_rssi < bss->signal) {
- selected = bss;
- top_rssi = bss->signal;
- }
- }
- if (selected)
- atomic_inc(&selected->users);
- spin_unlock_bh(&local->sta_bss_lock);
-
- if (selected) {
- ieee80211_set_freq(dev, selected->freq);
- if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
- ieee80211_sta_set_ssid(dev, selected->ssid,
- selected->ssid_len);
- ieee80211_sta_set_bssid(dev, selected->bssid);
- ieee80211_sta_def_wmm_params(dev, selected, 0);
- ieee80211_rx_bss_put(local, selected);
- ifsta->state = IEEE80211_AUTHENTICATE;
- ieee80211_sta_reset_auth(dev, ifsta);
- return 0;
- } else {
- if (ifsta->state != IEEE80211_AUTHENTICATE) {
- if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
- ieee80211_sta_start_scan(dev, NULL, 0);
- else
- ieee80211_sta_start_scan(dev, ifsta->ssid,
- ifsta->ssid_len);
- ifsta->state = IEEE80211_AUTHENTICATE;
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- } else
- ifsta->state = IEEE80211_DISABLED;
- }
- return -1;
-}
-
-
-static int ieee80211_sta_create_ibss(struct net_device *dev,
+static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_bss *bss;
struct ieee80211_supported_band *sband;
u8 bssid[ETH_ALEN], *pos;
int i;
@@ -3582,15 +2001,15 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
* random number generator get different BSSID. */
get_random_bytes(bssid, ETH_ALEN);
for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= dev->dev_addr[i];
+ bssid[i] ^= sdata->dev->dev_addr[i];
bssid[0] &= ~0x01;
bssid[0] |= 0x02;
#endif
printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n",
- dev->name, print_mac(mac, bssid));
+ sdata->dev->name, print_mac(mac, bssid));
- bss = ieee80211_rx_bss_add(dev, bssid,
+ bss = ieee80211_rx_bss_add(local, bssid,
local->hw.conf.channel->center_freq,
sdata->u.sta.ssid, sdata->u.sta.ssid_len);
if (!bss)
@@ -3617,17 +2036,17 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
*pos++ = (u8) (rate / 5);
}
- ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
+ ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
ieee80211_rx_bss_put(local, bss);
return ret;
}
-static int ieee80211_sta_find_ibss(struct net_device *dev,
+static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_bss *bss;
int found = 0;
u8 bssid[ETH_ALEN];
int active_ibss;
@@ -3637,13 +2056,13 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
if (ifsta->ssid_len == 0)
return -EINVAL;
- active_ibss = ieee80211_sta_active_ibss(dev);
+ active_ibss = ieee80211_sta_active_ibss(sdata);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
- dev->name, active_ibss);
+ sdata->dev->name, active_ibss);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
+ spin_lock_bh(&local->bss_lock);
+ list_for_each_entry(bss, &local->bss_list, list) {
if (ifsta->ssid_len != bss->ssid_len ||
memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
|| !(bss->capability & WLAN_CAPABILITY_IBSS))
@@ -3657,7 +2076,7 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
break;
}
- spin_unlock_bh(&local->sta_bss_lock);
+ spin_unlock_bh(&local->bss_lock);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
if (found)
@@ -3675,15 +2094,15 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
else
search_freq = local->hw.conf.channel->center_freq;
- bss = ieee80211_rx_bss_get(dev, bssid, search_freq,
+ bss = ieee80211_rx_bss_get(local, bssid, search_freq,
ifsta->ssid, ifsta->ssid_len);
if (!bss)
goto dont_join;
printk(KERN_DEBUG "%s: Selected IBSS BSSID %s"
" based on configured SSID\n",
- dev->name, print_mac(mac, bssid));
- ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
+ sdata->dev->name, print_mac(mac, bssid));
+ ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
ieee80211_rx_bss_put(local, bss);
return ret;
}
@@ -3694,17 +2113,17 @@ dont_join:
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
/* Selected IBSS not found in current scan results - try to scan */
- if (ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)) {
+ if (ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED &&
+ !ieee80211_sta_active_ibss(sdata)) {
mod_timer(&ifsta->timer, jiffies +
IEEE80211_IBSS_MERGE_INTERVAL);
} else if (time_after(jiffies, local->last_scan_completed +
IEEE80211_SCAN_INTERVAL)) {
printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
- "join\n", dev->name);
- return ieee80211_sta_req_scan(dev, ifsta->ssid,
+ "join\n", sdata->dev->name);
+ return ieee80211_request_scan(sdata, ifsta->ssid,
ifsta->ssid_len);
- } else if (ifsta->state != IEEE80211_IBSS_JOINED) {
+ } else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) {
int interval = IEEE80211_SCAN_INTERVAL;
if (time_after(jiffies, ifsta->ibss_join_req +
@@ -3712,10 +2131,10 @@ dont_join:
if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
(!(local->oper_channel->flags &
IEEE80211_CHAN_NO_IBSS)))
- return ieee80211_sta_create_ibss(dev, ifsta);
+ return ieee80211_sta_create_ibss(sdata, ifsta);
if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
printk(KERN_DEBUG "%s: IBSS not allowed on"
- " %d MHz\n", dev->name,
+ " %d MHz\n", sdata->dev->name,
local->hw.conf.channel->center_freq);
}
@@ -3724,7 +2143,7 @@ dont_join:
interval = IEEE80211_SCAN_INTERVAL_SLOW;
}
- ifsta->state = IEEE80211_IBSS_SEARCH;
+ ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
mod_timer(&ifsta->timer, jiffies + interval);
return 0;
}
@@ -3733,620 +2152,344 @@ dont_join:
}
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
+static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta;
- int res;
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_bss *bss, *selected = NULL;
+ int top_rssi = 0, freq;
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
+ spin_lock_bh(&local->bss_lock);
+ freq = local->oper_channel->center_freq;
+ list_for_each_entry(bss, &local->bss_list, list) {
+ if (!(bss->capability & WLAN_CAPABILITY_ESS))
+ continue;
- ifsta = &sdata->u.sta;
+ if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+ IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
+ (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
+ !!sdata->default_key))
+ continue;
- if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) {
- memset(ifsta->ssid, 0, sizeof(ifsta->ssid));
- memcpy(ifsta->ssid, ssid, len);
- ifsta->ssid_len = len;
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
+ bss->freq != freq)
+ continue;
- res = 0;
- /*
- * Hack! MLME code needs to be cleaned up to have different
- * entry points for configuration and internal selection change
- */
- if (netif_running(sdata->dev))
- res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
- if (res) {
- printk(KERN_DEBUG "%s: Failed to config new SSID to "
- "the low-level driver\n", dev->name);
- return res;
- }
- }
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
+ memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
+ continue;
- if (len)
- ifsta->flags |= IEEE80211_STA_SSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
+ !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
+ continue;
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
- ifsta->ibss_join_req = jiffies;
- ifsta->state = IEEE80211_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(dev, ifsta);
+ if (!selected || top_rssi < bss->signal) {
+ selected = bss;
+ top_rssi = bss->signal;
+ }
}
+ if (selected)
+ atomic_inc(&selected->users);
+ spin_unlock_bh(&local->bss_lock);
- return 0;
-}
+ if (selected) {
+ ieee80211_set_freq(sdata, selected->freq);
+ if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
+ ieee80211_sta_set_ssid(sdata, selected->ssid,
+ selected->ssid_len);
+ ieee80211_sta_set_bssid(sdata, selected->bssid);
+ ieee80211_sta_def_wmm_params(sdata, selected);
+ /* Send out direct probe if no probe resp was received or
+ * the one we have is outdated
+ */
+ if (!selected->last_probe_resp ||
+ time_after(jiffies, selected->last_probe_resp
+ + IEEE80211_SCAN_RESULT_EXPIRE))
+ ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+ else
+ ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
- *len = ifsta->ssid_len;
- return 0;
+ ieee80211_rx_bss_put(local, selected);
+ ieee80211_sta_reset_auth(sdata, ifsta);
+ return 0;
+ } else {
+ if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+ ifsta->assoc_scan_tries++;
+ if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
+ ieee80211_start_scan(sdata, NULL, 0);
+ else
+ ieee80211_start_scan(sdata, ifsta->ssid,
+ ifsta->ssid_len);
+ ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ } else
+ ifsta->state = IEEE80211_STA_MLME_DISABLED;
+ }
+ return -1;
}
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
+static void ieee80211_sta_work(struct work_struct *work)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_if_sta *ifsta;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
+ struct sk_buff *skb;
- if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- res = 0;
- /*
- * Hack! See also ieee80211_sta_set_ssid.
- */
- if (netif_running(sdata->dev))
- res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
- if (res) {
- printk(KERN_DEBUG "%s: Failed to config new BSSID to "
- "the low-level driver\n", dev->name);
- return res;
- }
- }
+ if (!netif_running(sdata->dev))
+ return;
- if (is_valid_ether_addr(bssid))
- ifsta->flags |= IEEE80211_STA_BSSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+ if (local->sw_scanning || local->hw_scanning)
+ return;
- return 0;
-}
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC))
+ return;
+ ifsta = &sdata->u.sta;
+ while ((skb = skb_dequeue(&ifsta->skb_queue)))
+ ieee80211_sta_rx_queued_mgmt(sdata, skb);
-static void ieee80211_send_nullfunc(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata,
- int powersave)
-{
- struct sk_buff *skb;
- struct ieee80211_hdr *nullfunc;
- __le16 fc;
+ if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
+ ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
+ ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
+ test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
+ ieee80211_start_scan(sdata, ifsta->scan_ssid,
+ ifsta->scan_ssid_len);
+ return;
+ }
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
- "frame\n", sdata->dev->name);
+ if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
+ if (ieee80211_sta_config_auth(sdata, ifsta))
+ return;
+ clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+ } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
return;
+
+ switch (ifsta->state) {
+ case IEEE80211_STA_MLME_DISABLED:
+ break;
+ case IEEE80211_STA_MLME_DIRECT_PROBE:
+ ieee80211_direct_probe(sdata, ifsta);
+ break;
+ case IEEE80211_STA_MLME_AUTHENTICATE:
+ ieee80211_authenticate(sdata, ifsta);
+ break;
+ case IEEE80211_STA_MLME_ASSOCIATE:
+ ieee80211_associate(sdata, ifsta);
+ break;
+ case IEEE80211_STA_MLME_ASSOCIATED:
+ ieee80211_associated(sdata, ifsta);
+ break;
+ case IEEE80211_STA_MLME_IBSS_SEARCH:
+ ieee80211_sta_find_ibss(sdata, ifsta);
+ break;
+ case IEEE80211_STA_MLME_IBSS_JOINED:
+ ieee80211_sta_merge_ibss(sdata, ifsta);
+ break;
+ default:
+ WARN_ON(1);
+ break;
}
- skb_reserve(skb, local->hw.extra_tx_headroom);
- nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
- memset(nullfunc, 0, 24);
- fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
- IEEE80211_FCTL_TODS);
- if (powersave)
- fc |= cpu_to_le16(IEEE80211_FCTL_PM);
- nullfunc->frame_control = fc;
- memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
-
- ieee80211_sta_tx(sdata->dev, skb, 0);
-}
+ if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+ printk(KERN_DEBUG "%s: privacy configuration mismatch and "
+ "mixed-cell disabled - disassociate\n", sdata->dev->name);
+ ieee80211_set_disassoc(sdata, ifsta, false, true,
+ WLAN_REASON_UNSPECIFIED);
+ }
+}
static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
{
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- ieee80211_vif_is_mesh(&sdata->vif))
- ieee80211_sta_timer((unsigned long)sdata);
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ queue_work(sdata->local->hw.workqueue,
+ &sdata->u.sta.work);
}
-void ieee80211_scan_completed(struct ieee80211_hw *hw)
+/* interface setup */
+void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata;
- union iwreq_data wrqu;
+ struct ieee80211_if_sta *ifsta;
- local->last_scan_completed = jiffies;
- memset(&wrqu, 0, sizeof(wrqu));
- wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
- if (local->sta_hw_scanning) {
- local->sta_hw_scanning = 0;
- if (ieee80211_hw_config(local))
- printk(KERN_DEBUG "%s: failed to restore operational "
- "channel after scan\n", dev->name);
- /* Restart STA timer for HW scan case */
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list)
- ieee80211_restart_sta_timer(sdata);
- rcu_read_unlock();
+ ifsta = &sdata->u.sta;
+ INIT_WORK(&ifsta->work, ieee80211_sta_work);
+ setup_timer(&ifsta->timer, ieee80211_sta_timer,
+ (unsigned long) sdata);
+ skb_queue_head_init(&ifsta->skb_queue);
- goto done;
+ ifsta->capab = WLAN_CAPABILITY_ESS;
+ ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
+ IEEE80211_AUTH_ALG_SHARED_KEY;
+ ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+ IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
+ ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
+}
+
+/*
+ * Add a new IBSS station, will also be called by the RX code when,
+ * in IBSS mode, receiving a frame from a yet-unknown station, hence
+ * must be callable in atomic context.
+ */
+struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, u8 *bssid,
+ u8 *addr, u64 supp_rates)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
+ DECLARE_MAC_BUF(mac);
+ int band = local->hw.conf.channel->band;
+
+ /* TODO: Could consider removing the least recently used entry and
+ * allow new one to be added. */
+ if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: No room for a new IBSS STA "
+ "entry %s\n", sdata->dev->name, print_mac(mac, addr));
+ }
+ return NULL;
}
- local->sta_sw_scanning = 0;
- if (ieee80211_hw_config(local))
- printk(KERN_DEBUG "%s: failed to restore operational "
- "channel after scan\n", dev->name);
+ if (compare_ether_addr(bssid, sdata->u.sta.bssid))
+ return NULL;
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
+ wiphy_name(local->hw.wiphy), print_mac(mac, addr), sdata->dev->name);
+#endif
- netif_tx_lock_bh(local->mdev);
- netif_addr_lock(local->mdev);
- local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
+ sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
+ if (!sta)
+ return NULL;
- netif_addr_unlock(local->mdev);
- netif_tx_unlock_bh(local->mdev);
+ set_sta_flags(sta, WLAN_STA_AUTHORIZED);
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- /* Tell AP we're back */
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
- sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
- ieee80211_send_nullfunc(local, sdata, 0);
+ /* make sure mandatory rates are always added */
+ sta->sta.supp_rates[band] = supp_rates |
+ ieee80211_mandatory_rates(local, band);
- ieee80211_restart_sta_timer(sdata);
+ rate_control_rate_init(sta);
- netif_wake_queue(sdata->dev);
- }
- rcu_read_unlock();
+ if (sta_info_insert(sta))
+ return NULL;
-done:
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
- (!(ifsta->state == IEEE80211_IBSS_JOINED) &&
- !ieee80211_sta_active_ibss(dev)))
- ieee80211_sta_find_ibss(dev, ifsta);
- }
+ return sta;
}
-EXPORT_SYMBOL(ieee80211_scan_completed);
-void ieee80211_sta_scan_work(struct work_struct *work)
+/* configuration hooks */
+void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta)
{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, scan_work.work);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *chan;
- int skip;
- unsigned long next_delay = 0;
+ struct ieee80211_local *local = sdata->local;
- if (!local->sta_sw_scanning)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
return;
- switch (local->scan_state) {
- case SCAN_SET_CHANNEL:
- /*
- * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
- * after we successfully scanned the last channel of the last
- * band (and the last band is supported by the hw)
- */
- if (local->scan_band < IEEE80211_NUM_BANDS)
- sband = local->hw.wiphy->bands[local->scan_band];
- else
- sband = NULL;
-
- /*
- * If we are at an unsupported band and have more bands
- * left to scan, advance to the next supported one.
- */
- while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
- local->scan_band++;
- sband = local->hw.wiphy->bands[local->scan_band];
- local->scan_channel_idx = 0;
- }
-
- /* if no more bands/channels left, complete scan */
- if (!sband || local->scan_channel_idx >= sband->n_channels) {
- ieee80211_scan_completed(local_to_hw(local));
- return;
- }
- skip = 0;
- chan = &sband->channels[local->scan_channel_idx];
-
- if (chan->flags & IEEE80211_CHAN_DISABLED ||
- (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- chan->flags & IEEE80211_CHAN_NO_IBSS))
- skip = 1;
-
- if (!skip) {
- local->scan_channel = chan;
- if (ieee80211_hw_config(local)) {
- printk(KERN_DEBUG "%s: failed to set freq to "
- "%d MHz for scan\n", dev->name,
- chan->center_freq);
- skip = 1;
- }
- }
-
- /* advance state machine to next channel/band */
- local->scan_channel_idx++;
- if (local->scan_channel_idx >= sband->n_channels) {
- /*
- * scan_band may end up == IEEE80211_NUM_BANDS, but
- * we'll catch that case above and complete the scan
- * if that is the case.
- */
- local->scan_band++;
- local->scan_channel_idx = 0;
- }
-
- if (skip)
- break;
+ if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
+ IEEE80211_STA_AUTO_BSSID_SEL)) &&
+ (ifsta->flags & (IEEE80211_STA_SSID_SET |
+ IEEE80211_STA_AUTO_SSID_SEL))) {
- next_delay = IEEE80211_PROBE_DELAY +
- usecs_to_jiffies(local->hw.channel_change_time);
- local->scan_state = SCAN_SEND_PROBE;
- break;
- case SCAN_SEND_PROBE:
- next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
- local->scan_state = SCAN_SET_CHANNEL;
+ if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED)
+ ieee80211_set_disassoc(sdata, ifsta, true, true,
+ WLAN_REASON_DEAUTH_LEAVING);
- if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- break;
- ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
- local->scan_ssid_len);
- next_delay = IEEE80211_CHANNEL_TIME;
- break;
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
}
-
- if (local->sta_sw_scanning)
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- next_delay);
}
-
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len)
+int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ int res;
- if (ssid_len > IEEE80211_MAX_SSID_LEN)
+ if (len > IEEE80211_MAX_SSID_LEN)
return -EINVAL;
- /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
- * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
- * BSSID: MACAddress
- * SSID
- * ScanType: ACTIVE, PASSIVE
- * ProbeDelay: delay (in microseconds) to be used prior to transmitting
- * a Probe frame during active scanning
- * ChannelList
- * MinChannelTime (>= ProbeDelay), in TU
- * MaxChannelTime: (>= MinChannelTime), in TU
- */
-
- /* MLME-SCAN.confirm
- * BSSDescriptionSet
- * ResultCode: SUCCESS, INVALID_PARAMETERS
- */
+ ifsta = &sdata->u.sta;
- if (local->sta_sw_scanning || local->sta_hw_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
+ if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) {
+ memset(ifsta->ssid, 0, sizeof(ifsta->ssid));
+ memcpy(ifsta->ssid, ssid, len);
+ ifsta->ssid_len = len;
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- if (local->ops->hw_scan) {
- int rc = local->ops->hw_scan(local_to_hw(local),
- ssid, ssid_len);
- if (!rc) {
- local->sta_hw_scanning = 1;
- local->scan_dev = dev;
+ res = 0;
+ /*
+ * Hack! MLME code needs to be cleaned up to have different
+ * entry points for configuration and internal selection change
+ */
+ if (netif_running(sdata->dev))
+ res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
+ if (res) {
+ printk(KERN_DEBUG "%s: Failed to config new SSID to "
+ "the low-level driver\n", sdata->dev->name);
+ return res;
}
- return rc;
}
- local->sta_sw_scanning = 1;
+ if (len)
+ ifsta->flags |= IEEE80211_STA_SSID_SET;
+ else
+ ifsta->flags &= ~IEEE80211_STA_SSID_SET;
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- netif_stop_queue(sdata->dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
- (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
- ieee80211_send_nullfunc(local, sdata, 1);
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+ !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
+ ifsta->ibss_join_req = jiffies;
+ ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
+ return ieee80211_sta_find_ibss(sdata, ifsta);
}
- rcu_read_unlock();
-
- if (ssid) {
- local->scan_ssid_len = ssid_len;
- memcpy(local->scan_ssid, ssid, ssid_len);
- } else
- local->scan_ssid_len = 0;
- local->scan_state = SCAN_SET_CHANNEL;
- local->scan_channel_idx = 0;
- local->scan_band = IEEE80211_BAND_2GHZ;
- local->scan_dev = dev;
-
- netif_addr_lock_bh(local->mdev);
- local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
- netif_addr_unlock_bh(local->mdev);
-
- /* TODO: start scan as soon as all nullfunc frames are ACKed */
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- IEEE80211_CHANNEL_TIME);
return 0;
}
-
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
+int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return ieee80211_sta_start_scan(dev, ssid, ssid_len);
-
- if (local->sta_sw_scanning || local->sta_hw_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- ifsta->scan_ssid_len = ssid_len;
- if (ssid_len)
- memcpy(ifsta->scan_ssid, ssid, ssid_len);
- set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
+ memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
+ *len = ifsta->ssid_len;
return 0;
}
-static char *
-ieee80211_sta_scan_result(struct net_device *dev,
- struct iw_request_info *info,
- struct ieee80211_sta_bss *bss,
- char *current_ev, char *end_buf)
+int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_event iwe;
-
- if (time_after(jiffies,
- bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
- return current_ev;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWAP;
- iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
- current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
- IW_EV_ADDR_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWESSID;
- if (bss_mesh_cfg(bss)) {
- iwe.u.data.length = bss_mesh_id_len(bss);
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, bss_mesh_id(bss));
- } else {
- iwe.u.data.length = bss->ssid_len;
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, bss->ssid);
- }
-
- if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
- || bss_mesh_cfg(bss)) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWMODE;
- if (bss_mesh_cfg(bss))
- iwe.u.mode = IW_MODE_MESH;
- else if (bss->capability & WLAN_CAPABILITY_ESS)
- iwe.u.mode = IW_MODE_MASTER;
- else
- iwe.u.mode = IW_MODE_ADHOC;
- current_ev = iwe_stream_add_event(info, current_ev, end_buf,
- &iwe, IW_EV_UINT_LEN);
- }
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
- iwe.u.freq.e = 0;
- current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = bss->freq;
- iwe.u.freq.e = 6;
- current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVQUAL;
- iwe.u.qual.qual = bss->qual;
- iwe.u.qual.level = bss->signal;
- iwe.u.qual.noise = bss->noise;
- iwe.u.qual.updated = local->wstats_flags;
- current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
- IW_EV_QUAL_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWENCODE;
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- else
- iwe.u.data.flags = IW_ENCODE_DISABLED;
- iwe.u.data.length = 0;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, "");
-
- if (bss && bss->wpa_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->wpa_ie_len;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, bss->wpa_ie);
- }
-
- if (bss && bss->rsn_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->rsn_ie_len;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, bss->rsn_ie);
- }
-
- if (bss && bss->ht_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->ht_ie_len;
- current_ev = iwe_stream_add_point(info, current_ev, end_buf,
- &iwe, bss->ht_ie);
- }
-
- if (bss && bss->supp_rates_len > 0) {
- /* display all supported rates in readable format */
- char *p = current_ev + iwe_stream_lcp_len(info);
- int i;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWRATE;
- /* Those two flags are ignored... */
- iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
-
- for (i = 0; i < bss->supp_rates_len; i++) {
- iwe.u.bitrate.value = ((bss->supp_rates[i] &
- 0x7f) * 500000);
- p = iwe_stream_add_value(info, current_ev, p,
- end_buf, &iwe, IW_EV_PARAM_LEN);
- }
- current_ev = p;
- }
+ struct ieee80211_if_sta *ifsta;
+ int res;
- if (bss) {
- char *buf;
- buf = kmalloc(30, GFP_ATOMIC);
- if (buf) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, " Last beacon: %dms ago",
- jiffies_to_msecs(jiffies - bss->last_update));
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf, &iwe, buf);
- kfree(buf);
- }
- }
+ ifsta = &sdata->u.sta;
- if (bss_mesh_cfg(bss)) {
- char *buf;
- u8 *cfg = bss_mesh_cfg(bss);
- buf = kmalloc(50, GFP_ATOMIC);
- if (buf) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "Mesh network (version %d)", cfg[0]);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- sprintf(buf, "Path Selection Protocol ID: "
- "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
- cfg[4]);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- sprintf(buf, "Path Selection Metric ID: "
- "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
- cfg[8]);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- sprintf(buf, "Congestion Control Mode ID: "
- "0x%02X%02X%02X%02X", cfg[9], cfg[10],
- cfg[11], cfg[12]);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- sprintf(buf, "Channel Precedence: "
- "0x%02X%02X%02X%02X", cfg[13], cfg[14],
- cfg[15], cfg[16]);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(info, current_ev,
- end_buf,
- &iwe, buf);
- kfree(buf);
+ if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
+ memcpy(ifsta->bssid, bssid, ETH_ALEN);
+ res = 0;
+ /*
+ * Hack! See also ieee80211_sta_set_ssid.
+ */
+ if (netif_running(sdata->dev))
+ res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
+ if (res) {
+ printk(KERN_DEBUG "%s: Failed to config new BSSID to "
+ "the low-level driver\n", sdata->dev->name);
+ return res;
}
}
- return current_ev;
-}
-
+ if (is_valid_ether_addr(bssid))
+ ifsta->flags |= IEEE80211_STA_BSSID_SET;
+ else
+ ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
-int ieee80211_sta_scan_results(struct net_device *dev,
- struct iw_request_info *info,
- char *buf, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- char *current_ev = buf;
- char *end_buf = buf + len;
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
- spin_unlock_bh(&local->sta_bss_lock);
- return -E2BIG;
- }
- current_ev = ieee80211_sta_scan_result(dev, info, bss,
- current_ev, end_buf);
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return current_ev - buf;
+ return 0;
}
-
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
+int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
kfree(ifsta->extra_ie);
@@ -4365,92 +2508,60 @@ int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
return 0;
}
-
-struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr, u64 supp_rates)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- DECLARE_MAC_BUF(mac);
- int band = local->hw.conf.channel->band;
-
- /* TODO: Could consider removing the least recently used entry and
- * allow new one to be added. */
- if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: No room for a new IBSS STA "
- "entry %s\n", dev->name, print_mac(mac, addr));
- }
- return NULL;
- }
-
- if (compare_ether_addr(bssid, sdata->u.sta.bssid))
- return NULL;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
- wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name);
-#endif
-
- sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
- if (!sta)
- return NULL;
-
- set_sta_flags(sta, WLAN_STA_AUTHORIZED);
-
- if (supp_rates)
- sta->supp_rates[band] = supp_rates;
- else
- sta->supp_rates[band] = sdata->u.sta.supp_rates_bits[band];
-
- rate_control_rate_init(sta, local);
-
- if (sta_info_insert(sta))
- return NULL;
-
- return sta;
-}
-
-
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
+int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n",
- dev->name, reason);
+ sdata->dev->name, reason);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
return -EINVAL;
- ieee80211_send_deauth(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 1);
+ ieee80211_set_disassoc(sdata, ifsta, true, true, reason);
return 0;
}
-
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
+int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
- dev->name, reason);
+ sdata->dev->name, reason);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EINVAL;
if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
return -1;
- ieee80211_send_disassoc(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 0);
+ ieee80211_set_disassoc(sdata, ifsta, false, true, reason);
return 0;
}
+/* scan finished notification */
+void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+ struct ieee80211_if_sta *ifsta;
+
+ if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ ifsta = &sdata->u.sta;
+ if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
+ (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
+ !ieee80211_sta_active_ibss(sdata)))
+ ieee80211_sta_find_ibss(sdata, ifsta);
+ }
+
+ /* Restart STA timers */
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list)
+ ieee80211_restart_sta_timer(sdata);
+ rcu_read_unlock();
+}
+
+/* driver notification call */
void ieee80211_notify_mac(struct ieee80211_hw *hw,
enum ieee80211_notification_types notif_type)
{
@@ -4461,10 +2572,10 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
case IEEE80211_NOTIFY_RE_ASSOC:
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
- ieee80211_sta_req_auth(sdata->dev, &sdata->u.sta);
+ ieee80211_sta_req_auth(sdata, &sdata->u.sta);
}
rcu_read_unlock();
break;
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 0388c090dfe..5d786720d93 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -12,6 +12,7 @@
#include <linux/rtnetlink.h>
#include "rate.h"
#include "ieee80211_i.h"
+#include "debugfs.h"
struct rate_control_alg {
struct list_head list;
@@ -127,19 +128,46 @@ static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
module_put(ops->module);
}
+#ifdef CONFIG_MAC80211_DEBUGFS
+static ssize_t rcname_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct rate_control_ref *ref = file->private_data;
+ int len = strlen(ref->ops->name);
+
+ return simple_read_from_buffer(userbuf, count, ppos,
+ ref->ops->name, len);
+}
+
+static const struct file_operations rcname_ops = {
+ .read = rcname_read,
+ .open = mac80211_open_file_generic,
+};
+#endif
+
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local)
{
+ struct dentry *debugfsdir = NULL;
struct rate_control_ref *ref;
ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
if (!ref)
goto fail_ref;
kref_init(&ref->kref);
+ ref->local = local;
ref->ops = ieee80211_rate_control_ops_get(name);
if (!ref->ops)
goto fail_ops;
- ref->priv = ref->ops->alloc(local);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ debugfsdir = debugfs_create_dir("rc", local->hw.wiphy->debugfsdir);
+ local->debugfs.rcdir = debugfsdir;
+ local->debugfs.rcname = debugfs_create_file("name", 0400, debugfsdir,
+ ref, &rcname_ops);
+#endif
+
+ ref->priv = ref->ops->alloc(&local->hw, debugfsdir);
if (!ref->priv)
goto fail_priv;
return ref;
@@ -158,29 +186,46 @@ static void rate_control_release(struct kref *kref)
ctrl_ref = container_of(kref, struct rate_control_ref, kref);
ctrl_ref->ops->free(ctrl_ref->priv);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ debugfs_remove(ctrl_ref->local->debugfs.rcname);
+ ctrl_ref->local->debugfs.rcname = NULL;
+ debugfs_remove(ctrl_ref->local->debugfs.rcdir);
+ ctrl_ref->local->debugfs.rcdir = NULL;
+#endif
+
ieee80211_rate_control_ops_put(ctrl_ref->ops);
kfree(ctrl_ref);
}
-void rate_control_get_rate(struct net_device *dev,
+void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
+ struct sta_info *sta, struct sk_buff *skb,
struct rate_selection *sel)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct rate_control_ref *ref = local->rate_ctrl;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
+ struct rate_control_ref *ref = sdata->local->rate_ctrl;
+ void *priv_sta = NULL;
+ struct ieee80211_sta *ista = NULL;
int i;
- rcu_read_lock();
- sta = sta_info_get(local, hdr->addr1);
-
sel->rate_idx = -1;
sel->nonerp_idx = -1;
sel->probe_idx = -1;
+ sel->max_rate_idx = sdata->max_ratectrl_rateidx;
+
+ if (sta) {
+ ista = &sta->sta;
+ priv_sta = sta->rate_ctrl_priv;
+ }
+
+ if (sta && sdata->force_unicast_rateidx > -1)
+ sel->rate_idx = sdata->force_unicast_rateidx;
+ else
+ ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel);
- ref->ops->get_rate(ref->priv, dev, sband, skb, sel);
+ if (sdata->max_ratectrl_rateidx > -1 &&
+ sel->rate_idx > sdata->max_ratectrl_rateidx)
+ sel->rate_idx = sdata->max_ratectrl_rateidx;
BUG_ON(sel->rate_idx < 0);
@@ -191,13 +236,11 @@ void rate_control_get_rate(struct net_device *dev,
if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate)
break;
- if (rate_supported(sta, sband->band, i) &&
+ if (rate_supported(ista, sband->band, i) &&
!(rate->flags & IEEE80211_RATE_ERP_G))
sel->nonerp_idx = i;
}
}
-
- rcu_read_unlock();
}
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index ede7ab56f65..d0092f847f8 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -19,77 +19,48 @@
#include "ieee80211_i.h"
#include "sta_info.h"
-/**
- * struct rate_selection - rate selection for rate control algos
- * @rate: selected transmission rate index
- * @nonerp: Non-ERP rate to use instead if ERP cannot be used
- * @probe: rate for probing (or -1)
- *
- */
-struct rate_selection {
- s8 rate_idx, nonerp_idx, probe_idx;
-};
-
-struct rate_control_ops {
- struct module *module;
- const char *name;
- void (*tx_status)(void *priv, struct net_device *dev,
- struct sk_buff *skb);
- void (*get_rate)(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *band,
- struct sk_buff *skb,
- struct rate_selection *sel);
- void (*rate_init)(void *priv, void *priv_sta,
- struct ieee80211_local *local, struct sta_info *sta);
- void (*clear)(void *priv);
-
- void *(*alloc)(struct ieee80211_local *local);
- void (*free)(void *priv);
- void *(*alloc_sta)(void *priv, gfp_t gfp);
- void (*free_sta)(void *priv, void *priv_sta);
-
- int (*add_attrs)(void *priv, struct kobject *kobj);
- void (*remove_attrs)(void *priv, struct kobject *kobj);
- void (*add_sta_debugfs)(void *priv, void *priv_sta,
- struct dentry *dir);
- void (*remove_sta_debugfs)(void *priv, void *priv_sta);
-};
-
struct rate_control_ref {
+ struct ieee80211_local *local;
struct rate_control_ops *ops;
void *priv;
struct kref kref;
};
-int ieee80211_rate_control_register(struct rate_control_ops *ops);
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
-
/* Get a reference to the rate control algorithm. If `name' is NULL, get the
* first available algorithm. */
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local);
-void rate_control_get_rate(struct net_device *dev,
+void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
+ struct sta_info *sta, struct sk_buff *skb,
struct rate_selection *sel);
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
void rate_control_put(struct rate_control_ref *ref);
-static inline void rate_control_tx_status(struct net_device *dev,
+static inline void rate_control_tx_status(struct ieee80211_local *local,
+ struct ieee80211_supported_band *sband,
+ struct sta_info *sta,
struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct rate_control_ref *ref = local->rate_ctrl;
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
- ref->ops->tx_status(ref->priv, dev, skb);
+ ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
}
-static inline void rate_control_rate_init(struct sta_info *sta,
- struct ieee80211_local *local)
+static inline void rate_control_rate_init(struct sta_info *sta)
{
+ struct ieee80211_local *local = sta->sdata->local;
struct rate_control_ref *ref = sta->rate_ctrl;
- ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+ ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
}
@@ -100,15 +71,19 @@ static inline void rate_control_clear(struct ieee80211_local *local)
}
static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
+ struct ieee80211_sta *sta,
gfp_t gfp)
{
- return ref->ops->alloc_sta(ref->priv, gfp);
+ return ref->ops->alloc_sta(ref->priv, sta, gfp);
}
-static inline void rate_control_free_sta(struct rate_control_ref *ref,
- void *priv)
+static inline void rate_control_free_sta(struct sta_info *sta)
{
- ref->ops->free_sta(ref->priv, priv);
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
+
+ ref->ops->free_sta(ref->priv, ista, priv_sta);
}
static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
@@ -130,31 +105,6 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
#endif
}
-static inline int rate_supported(struct sta_info *sta,
- enum ieee80211_band band,
- int index)
-{
- return (sta == NULL || sta->supp_rates[band] & BIT(index));
-}
-
-static inline s8
-rate_lowest_index(struct ieee80211_local *local,
- struct ieee80211_supported_band *sband,
- struct sta_info *sta)
-{
- int i;
-
- for (i = 0; i < sband->n_bitrates; i++)
- if (rate_supported(sta, sband->band, i))
- return i;
-
- /* warn when we cannot find a rate. */
- WARN_ON(1);
-
- return 0;
-}
-
-
/* functions for rate control related to a device */
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
const char *name);
@@ -175,4 +125,18 @@ static inline void rc80211_pid_exit(void)
}
#endif
+#ifdef CONFIG_MAC80211_RC_MINSTREL
+extern int rc80211_minstrel_init(void);
+extern void rc80211_minstrel_exit(void);
+#else
+static inline int rc80211_minstrel_init(void)
+{
+ return 0;
+}
+static inline void rc80211_minstrel_exit(void)
+{
+}
+#endif
+
+
#endif /* IEEE80211_RATE_H */
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
new file mode 100644
index 00000000000..f6d69dab07a
--- /dev/null
+++ b/net/mac80211/rc80211_minstrel.c
@@ -0,0 +1,583 @@
+/*
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on minstrel.c:
+ * Copyright (C) 2005-2007 Derek Smithies <derek@indranet.co.nz>
+ * Sponsored by Indranet Technologies Ltd
+ *
+ * Based on sample.c:
+ * Copyright (c) 2005 John Bicket
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ * redistribution must be conditioned upon including a substantially
+ * similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ */
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/debugfs.h>
+#include <linux/random.h>
+#include <linux/ieee80211.h>
+#include <net/mac80211.h>
+#include "rate.h"
+#include "rc80211_minstrel.h"
+
+#define SAMPLE_COLUMNS 10
+#define SAMPLE_TBL(_mi, _idx, _col) \
+ _mi->sample_table[(_idx * SAMPLE_COLUMNS) + _col]
+
+/* convert mac80211 rate index to local array index */
+static inline int
+rix_to_ndx(struct minstrel_sta_info *mi, int rix)
+{
+ int i = rix;
+ for (i = rix; i >= 0; i--)
+ if (mi->r[i].rix == rix)
+ break;
+ WARN_ON(mi->r[i].rix != rix);
+ return i;
+}
+
+static inline bool
+use_low_rate(struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ u16 fc;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ return ((info->flags & IEEE80211_TX_CTL_NO_ACK) ||
+ (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ is_multicast_ether_addr(hdr->addr1));
+}
+
+
+static void
+minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
+{
+ u32 max_tp = 0, index_max_tp = 0, index_max_tp2 = 0;
+ u32 max_prob = 0, index_max_prob = 0;
+ u32 usecs;
+ u32 p;
+ int i;
+
+ mi->stats_update = jiffies;
+ for (i = 0; i < mi->n_rates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+
+ usecs = mr->perfect_tx_time;
+ if (!usecs)
+ usecs = 1000000;
+
+ /* To avoid rounding issues, probabilities scale from 0 (0%)
+ * to 18000 (100%) */
+ if (mr->attempts) {
+ p = (mr->success * 18000) / mr->attempts;
+ mr->succ_hist += mr->success;
+ mr->att_hist += mr->attempts;
+ mr->cur_prob = p;
+ p = ((p * (100 - mp->ewma_level)) + (mr->probability *
+ mp->ewma_level)) / 100;
+ mr->probability = p;
+ mr->cur_tp = p * (1000000 / usecs);
+ }
+
+ mr->last_success = mr->success;
+ mr->last_attempts = mr->attempts;
+ mr->success = 0;
+ mr->attempts = 0;
+
+ /* Sample less often below the 10% chance of success.
+ * Sample less often above the 95% chance of success. */
+ if ((mr->probability > 17100) || (mr->probability < 1800)) {
+ mr->adjusted_retry_count = mr->retry_count >> 1;
+ if (mr->adjusted_retry_count > 2)
+ mr->adjusted_retry_count = 2;
+ } else {
+ mr->adjusted_retry_count = mr->retry_count;
+ }
+ if (!mr->adjusted_retry_count)
+ mr->adjusted_retry_count = 2;
+ }
+
+ for (i = 0; i < mi->n_rates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+ if (max_tp < mr->cur_tp) {
+ index_max_tp = i;
+ max_tp = mr->cur_tp;
+ }
+ if (max_prob < mr->probability) {
+ index_max_prob = i;
+ max_prob = mr->probability;
+ }
+ }
+
+ max_tp = 0;
+ for (i = 0; i < mi->n_rates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+
+ if (i == index_max_tp)
+ continue;
+
+ if (max_tp < mr->cur_tp) {
+ index_max_tp2 = i;
+ max_tp = mr->cur_tp;
+ }
+ }
+ mi->max_tp_rate = index_max_tp;
+ mi->max_tp_rate2 = index_max_tp2;
+ mi->max_prob_rate = index_max_prob;
+}
+
+static void
+minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb)
+{
+ struct minstrel_sta_info *mi = priv_sta;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_tx_altrate *ar = info->status.retries;
+ struct minstrel_priv *mp = priv;
+ int i, ndx, tries;
+ int success = 0;
+
+ if (!info->status.excessive_retries)
+ success = 1;
+
+ if (!mp->has_mrr || (ar[0].rate_idx < 0)) {
+ ndx = rix_to_ndx(mi, info->tx_rate_idx);
+ tries = info->status.retry_count + 1;
+ mi->r[ndx].success += success;
+ mi->r[ndx].attempts += tries;
+ return;
+ }
+
+ for (i = 0; i < 4; i++) {
+ if (ar[i].rate_idx < 0)
+ break;
+
+ ndx = rix_to_ndx(mi, ar[i].rate_idx);
+ mi->r[ndx].attempts += ar[i].limit + 1;
+
+ if ((i != 3) && (ar[i + 1].rate_idx < 0))
+ mi->r[ndx].success += success;
+ }
+
+ if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) && (i >= 0))
+ mi->sample_count++;
+
+ if (mi->sample_deferred > 0)
+ mi->sample_deferred--;
+}
+
+
+static inline unsigned int
+minstrel_get_retry_count(struct minstrel_rate *mr,
+ struct ieee80211_tx_info *info)
+{
+ unsigned int retry = mr->adjusted_retry_count;
+
+ if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+ retry = max(2U, min(mr->retry_count_rtscts, retry));
+ else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+ retry = max(2U, min(mr->retry_count_cts, retry));
+ return retry;
+}
+
+
+static int
+minstrel_get_next_sample(struct minstrel_sta_info *mi)
+{
+ unsigned int sample_ndx;
+ sample_ndx = SAMPLE_TBL(mi, mi->sample_idx, mi->sample_column);
+ mi->sample_idx++;
+ if (mi->sample_idx > (mi->n_rates - 2)) {
+ mi->sample_idx = 0;
+ mi->sample_column++;
+ if (mi->sample_column >= SAMPLE_COLUMNS)
+ mi->sample_column = 0;
+ }
+ return sample_ndx;
+}
+
+void
+minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb, struct rate_selection *sel)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct minstrel_sta_info *mi = priv_sta;
+ struct minstrel_priv *mp = priv;
+ struct ieee80211_tx_altrate *ar = info->control.retries;
+ unsigned int ndx, sample_ndx = 0;
+ bool mrr;
+ bool sample_slower = false;
+ bool sample = false;
+ int i, delta;
+ int mrr_ndx[3];
+ int sample_rate;
+
+ if (!sta || !mi || use_low_rate(skb)) {
+ sel->rate_idx = rate_lowest_index(sband, sta);
+ return;
+ }
+
+ mrr = mp->has_mrr;
+
+ /* mac80211 does not allow mrr for RTS/CTS */
+ if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
+ (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT))
+ mrr = false;
+
+ if (time_after(jiffies, mi->stats_update + (mp->update_interval *
+ HZ) / 1000))
+ minstrel_update_stats(mp, mi);
+
+ ndx = mi->max_tp_rate;
+
+ if (mrr)
+ sample_rate = mp->lookaround_rate_mrr;
+ else
+ sample_rate = mp->lookaround_rate;
+
+ mi->packet_count++;
+ delta = (mi->packet_count * sample_rate / 100) -
+ (mi->sample_count + mi->sample_deferred / 2);
+
+ /* delta > 0: sampling required */
+ if (delta > 0) {
+ if (mi->packet_count >= 10000) {
+ mi->sample_deferred = 0;
+ mi->sample_count = 0;
+ mi->packet_count = 0;
+ } else if (delta > mi->n_rates * 2) {
+ /* With multi-rate retry, not every planned sample
+ * attempt actually gets used, due to the way the retry
+ * chain is set up - [max_tp,sample,prob,lowest] for
+ * sample_rate < max_tp.
+ *
+ * If there's too much sampling backlog and the link
+ * starts getting worse, minstrel would start bursting
+ * out lots of sampling frames, which would result
+ * in a large throughput loss. */
+ mi->sample_count += (delta - mi->n_rates * 2);
+ }
+
+ sample_ndx = minstrel_get_next_sample(mi);
+ sample = true;
+ sample_slower = mrr && (mi->r[sample_ndx].perfect_tx_time >
+ mi->r[ndx].perfect_tx_time);
+
+ if (!sample_slower) {
+ ndx = sample_ndx;
+ mi->sample_count++;
+ } else {
+ /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
+ * packets that have the sampling rate deferred to the
+ * second MRR stage. Increase the sample counter only
+ * if the deferred sample rate was actually used.
+ * Use the sample_deferred counter to make sure that
+ * the sampling is not done in large bursts */
+ info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+ mi->sample_deferred++;
+ }
+ }
+ sel->rate_idx = mi->r[ndx].rix;
+ info->control.retry_limit = minstrel_get_retry_count(&mi->r[ndx], info);
+
+ if (!mrr) {
+ ar[0].rate_idx = mi->lowest_rix;
+ ar[0].limit = mp->max_retry;
+ ar[1].rate_idx = -1;
+ return;
+ }
+
+ /* MRR setup */
+ if (sample) {
+ if (sample_slower)
+ mrr_ndx[0] = sample_ndx;
+ else
+ mrr_ndx[0] = mi->max_tp_rate;
+ } else {
+ mrr_ndx[0] = mi->max_tp_rate2;
+ }
+ mrr_ndx[1] = mi->max_prob_rate;
+ mrr_ndx[2] = 0;
+ for (i = 0; i < 3; i++) {
+ ar[i].rate_idx = mi->r[mrr_ndx[i]].rix;
+ ar[i].limit = mi->r[mrr_ndx[i]].adjusted_retry_count;
+ }
+}
+
+
+static void
+calc_rate_durations(struct minstrel_sta_info *mi, struct ieee80211_local *local,
+ struct minstrel_rate *d, struct ieee80211_rate *rate)
+{
+ int erp = !!(rate->flags & IEEE80211_RATE_ERP_G);
+
+ d->perfect_tx_time = ieee80211_frame_duration(local, 1200,
+ rate->bitrate, erp, 1);
+ d->ack_time = ieee80211_frame_duration(local, 10,
+ rate->bitrate, erp, 1);
+}
+
+static void
+init_sample_table(struct minstrel_sta_info *mi)
+{
+ unsigned int i, col, new_idx;
+ unsigned int n_srates = mi->n_rates - 1;
+ u8 rnd[8];
+
+ mi->sample_column = 0;
+ mi->sample_idx = 0;
+ memset(mi->sample_table, 0, SAMPLE_COLUMNS * mi->n_rates);
+
+ for (col = 0; col < SAMPLE_COLUMNS; col++) {
+ for (i = 0; i < n_srates; i++) {
+ get_random_bytes(rnd, sizeof(rnd));
+ new_idx = (i + rnd[i & 7]) % n_srates;
+
+ while (SAMPLE_TBL(mi, new_idx, col) != 0)
+ new_idx = (new_idx + 1) % n_srates;
+
+ /* Don't sample the slowest rate (i.e. slowest base
+ * rate). We must presume that the slowest rate works
+ * fine, or else other management frames will also be
+ * failing and the link will break */
+ SAMPLE_TBL(mi, new_idx, col) = i + 1;
+ }
+ }
+}
+
+static void
+minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
+{
+ struct minstrel_sta_info *mi = priv_sta;
+ struct minstrel_priv *mp = priv;
+ struct minstrel_rate *mr_ctl;
+ unsigned int i, n = 0;
+ unsigned int t_slot = 9; /* FIXME: get real slot time */
+
+ mi->lowest_rix = rate_lowest_index(sband, sta);
+ mr_ctl = &mi->r[rix_to_ndx(mi, mi->lowest_rix)];
+ mi->sp_ack_dur = mr_ctl->ack_time;
+
+ for (i = 0; i < sband->n_bitrates; i++) {
+ struct minstrel_rate *mr = &mi->r[n];
+ unsigned int tx_time = 0, tx_time_cts = 0, tx_time_rtscts = 0;
+ unsigned int tx_time_single;
+ unsigned int cw = mp->cw_min;
+
+ if (!rate_supported(sta, sband->band, i))
+ continue;
+ n++;
+ memset(mr, 0, sizeof(*mr));
+
+ mr->rix = i;
+ mr->bitrate = sband->bitrates[i].bitrate / 5;
+ calc_rate_durations(mi, hw_to_local(mp->hw), mr,
+ &sband->bitrates[i]);
+
+ /* calculate maximum number of retransmissions before
+ * fallback (based on maximum segment size) */
+ mr->retry_count = 1;
+ mr->retry_count_cts = 1;
+ mr->retry_count_rtscts = 1;
+ tx_time = mr->perfect_tx_time + mi->sp_ack_dur;
+ do {
+ /* add one retransmission */
+ tx_time_single = mr->ack_time + mr->perfect_tx_time;
+
+ /* contention window */
+ tx_time_single += t_slot + min(cw, mp->cw_max);
+ cw = (cw + 1) << 1;
+
+ tx_time += tx_time_single;
+ tx_time_cts += tx_time_single + mi->sp_ack_dur;
+ tx_time_rtscts += tx_time_single + 2 * mi->sp_ack_dur;
+ if ((tx_time_cts < mp->segment_size) &&
+ (mr->retry_count_cts < mp->max_retry))
+ mr->retry_count_cts++;
+ if ((tx_time_rtscts < mp->segment_size) &&
+ (mr->retry_count_rtscts < mp->max_retry))
+ mr->retry_count_rtscts++;
+ } while ((tx_time < mp->segment_size) &&
+ (++mr->retry_count < mp->max_retry));
+ mr->adjusted_retry_count = mr->retry_count;
+ }
+
+ for (i = n; i < sband->n_bitrates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+ mr->rix = -1;
+ }
+
+ mi->n_rates = n;
+ mi->stats_update = jiffies;
+
+ init_sample_table(mi);
+}
+
+static void *
+minstrel_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
+{
+ struct ieee80211_supported_band *sband;
+ struct minstrel_sta_info *mi;
+ struct minstrel_priv *mp = priv;
+ struct ieee80211_hw *hw = mp->hw;
+ int max_rates = 0;
+ int i;
+
+ mi = kzalloc(sizeof(struct minstrel_sta_info), gfp);
+ if (!mi)
+ return NULL;
+
+ for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
+ sband = hw->wiphy->bands[hw->conf.channel->band];
+ if (sband->n_bitrates > max_rates)
+ max_rates = sband->n_bitrates;
+ }
+
+ mi->r = kzalloc(sizeof(struct minstrel_rate) * max_rates, gfp);
+ if (!mi->r)
+ goto error;
+
+ mi->sample_table = kmalloc(SAMPLE_COLUMNS * max_rates, gfp);
+ if (!mi->sample_table)
+ goto error1;
+
+ mi->stats_update = jiffies;
+ return mi;
+
+error1:
+ kfree(mi->r);
+error:
+ kfree(mi);
+ return NULL;
+}
+
+static void
+minstrel_free_sta(void *priv, struct ieee80211_sta *sta, void *priv_sta)
+{
+ struct minstrel_sta_info *mi = priv_sta;
+
+ kfree(mi->sample_table);
+ kfree(mi->r);
+ kfree(mi);
+}
+
+static void
+minstrel_clear(void *priv)
+{
+}
+
+static void *
+minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
+{
+ struct minstrel_priv *mp;
+
+ mp = kzalloc(sizeof(struct minstrel_priv), GFP_ATOMIC);
+ if (!mp)
+ return NULL;
+
+ /* contention window settings
+ * Just an approximation. Using the per-queue values would complicate
+ * the calculations and is probably unnecessary */
+ mp->cw_min = 15;
+ mp->cw_max = 1023;
+
+ /* number of packets (in %) to use for sampling other rates
+ * sample less often for non-mrr packets, because the overhead
+ * is much higher than with mrr */
+ mp->lookaround_rate = 5;
+ mp->lookaround_rate_mrr = 10;
+
+ /* moving average weight for EWMA */
+ mp->ewma_level = 75;
+
+ /* maximum time that the hw is allowed to stay in one MRR segment */
+ mp->segment_size = 6000;
+
+ if (hw->max_altrate_tries > 0)
+ mp->max_retry = hw->max_altrate_tries;
+ else
+ /* safe default, does not necessarily have to match hw properties */
+ mp->max_retry = 7;
+
+ if (hw->max_altrates >= 3)
+ mp->has_mrr = true;
+
+ mp->hw = hw;
+ mp->update_interval = 100;
+
+ return mp;
+}
+
+static void
+minstrel_free(void *priv)
+{
+ kfree(priv);
+}
+
+static struct rate_control_ops mac80211_minstrel = {
+ .name = "minstrel",
+ .tx_status = minstrel_tx_status,
+ .get_rate = minstrel_get_rate,
+ .rate_init = minstrel_rate_init,
+ .clear = minstrel_clear,
+ .alloc = minstrel_alloc,
+ .free = minstrel_free,
+ .alloc_sta = minstrel_alloc_sta,
+ .free_sta = minstrel_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = minstrel_add_sta_debugfs,
+ .remove_sta_debugfs = minstrel_remove_sta_debugfs,
+#endif
+};
+
+int __init
+rc80211_minstrel_init(void)
+{
+ return ieee80211_rate_control_register(&mac80211_minstrel);
+}
+
+void
+rc80211_minstrel_exit(void)
+{
+ ieee80211_rate_control_unregister(&mac80211_minstrel);
+}
+
diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
new file mode 100644
index 00000000000..9a90a6aee04
--- /dev/null
+++ b/net/mac80211/rc80211_minstrel.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __RC_MINSTREL_H
+#define __RC_MINSTREL_H
+
+struct minstrel_rate {
+ int bitrate;
+ int rix;
+
+ unsigned int perfect_tx_time;
+ unsigned int ack_time;
+
+ unsigned int retry_count;
+ unsigned int retry_count_cts;
+ unsigned int retry_count_rtscts;
+ unsigned int adjusted_retry_count;
+
+ u32 success;
+ u32 attempts;
+ u32 last_attempts;
+ u32 last_success;
+
+ /* parts per thousand */
+ u32 cur_prob;
+ u32 probability;
+
+ /* per-rate throughput */
+ u32 cur_tp;
+ u32 throughput;
+
+ u64 succ_hist;
+ u64 att_hist;
+};
+
+struct minstrel_sta_info {
+ unsigned long stats_update;
+ unsigned int sp_ack_dur;
+ unsigned int rate_avg;
+
+ unsigned int lowest_rix;
+
+ unsigned int max_tp_rate;
+ unsigned int max_tp_rate2;
+ unsigned int max_prob_rate;
+ unsigned int packet_count;
+ unsigned int sample_count;
+ int sample_deferred;
+
+ unsigned int sample_idx;
+ unsigned int sample_column;
+
+ int n_rates;
+ struct minstrel_rate *r;
+
+ /* sampling table */
+ u8 *sample_table;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *dbg_stats;
+#endif
+};
+
+struct minstrel_priv {
+ struct ieee80211_hw *hw;
+ bool has_mrr;
+ unsigned int cw_min;
+ unsigned int cw_max;
+ unsigned int max_retry;
+ unsigned int ewma_level;
+ unsigned int segment_size;
+ unsigned int update_interval;
+ unsigned int lookaround_rate;
+ unsigned int lookaround_rate_mrr;
+};
+
+void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
+void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
+
+#endif
diff --git a/net/mac80211/rc80211_minstrel_debugfs.c b/net/mac80211/rc80211_minstrel_debugfs.c
new file mode 100644
index 00000000000..0b024cd6b80
--- /dev/null
+++ b/net/mac80211/rc80211_minstrel_debugfs.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on minstrel.c:
+ * Copyright (C) 2005-2007 Derek Smithies <derek@indranet.co.nz>
+ * Sponsored by Indranet Technologies Ltd
+ *
+ * Based on sample.c:
+ * Copyright (c) 2005 John Bicket
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ * redistribution must be conditioned upon including a substantially
+ * similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ */
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/debugfs.h>
+#include <linux/ieee80211.h>
+#include <net/mac80211.h>
+#include "rc80211_minstrel.h"
+
+struct minstrel_stats_info {
+ struct minstrel_sta_info *mi;
+ char buf[4096];
+ size_t len;
+};
+
+static int
+minstrel_stats_open(struct inode *inode, struct file *file)
+{
+ struct minstrel_sta_info *mi = inode->i_private;
+ struct minstrel_stats_info *ms;
+ unsigned int i, tp, prob, eprob;
+ char *p;
+
+ ms = kmalloc(sizeof(*ms), GFP_KERNEL);
+ if (!ms)
+ return -ENOMEM;
+
+ file->private_data = ms;
+ p = ms->buf;
+ p += sprintf(p, "rate throughput ewma prob this prob "
+ "this succ/attempt success attempts\n");
+ for (i = 0; i < mi->n_rates; i++) {
+ struct minstrel_rate *mr = &mi->r[i];
+
+ *(p++) = (i == mi->max_tp_rate) ? 'T' : ' ';
+ *(p++) = (i == mi->max_tp_rate2) ? 't' : ' ';
+ *(p++) = (i == mi->max_prob_rate) ? 'P' : ' ';
+ p += sprintf(p, "%3u%s", mr->bitrate / 2,
+ (mr->bitrate & 1 ? ".5" : " "));
+
+ tp = ((mr->cur_tp * 96) / 18000) >> 10;
+ prob = mr->cur_prob / 18;
+ eprob = mr->probability / 18;
+
+ p += sprintf(p, " %6u.%1u %6u.%1u %6u.%1u "
+ "%3u(%3u) %8llu %8llu\n",
+ tp / 10, tp % 10,
+ eprob / 10, eprob % 10,
+ prob / 10, prob % 10,
+ mr->last_success,
+ mr->last_attempts,
+ mr->succ_hist,
+ mr->att_hist);
+ }
+ p += sprintf(p, "\nTotal packet count:: ideal %d "
+ "lookaround %d\n\n",
+ mi->packet_count - mi->sample_count,
+ mi->sample_count);
+ ms->len = p - ms->buf;
+
+ return 0;
+}
+
+static int
+minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *o)
+{
+ struct minstrel_stats_info *ms;
+ char *src;
+
+ ms = file->private_data;
+ src = ms->buf;
+
+ len = min(len, ms->len);
+ if (len <= *o)
+ return 0;
+
+ src += *o;
+ len -= *o;
+ *o += len;
+
+ if (copy_to_user(buf, src, len))
+ return -EFAULT;
+
+ return len;
+}
+
+static int
+minstrel_stats_release(struct inode *inode, struct file *file)
+{
+ struct minstrel_stats_info *ms = file->private_data;
+
+ kfree(ms);
+
+ return 0;
+}
+
+static struct file_operations minstrel_stat_fops = {
+ .owner = THIS_MODULE,
+ .open = minstrel_stats_open,
+ .read = minstrel_stats_read,
+ .release = minstrel_stats_release,
+};
+
+void
+minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir)
+{
+ struct minstrel_sta_info *mi = priv_sta;
+
+ mi->dbg_stats = debugfs_create_file("rc_stats", S_IRUGO, dir, mi,
+ &minstrel_stat_fops);
+}
+
+void
+minstrel_remove_sta_debugfs(void *priv, void *priv_sta)
+{
+ struct minstrel_sta_info *mi = priv_sta;
+
+ debugfs_remove(mi->dbg_stats);
+}
diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
index 0a9135b974b..01d64d53f3b 100644
--- a/net/mac80211/rc80211_pid.h
+++ b/net/mac80211/rc80211_pid.h
@@ -124,7 +124,6 @@ struct rc_pid_events_file_info {
* struct rc_pid_debugfs_entries - tunable parameters
*
* Algorithm parameters, tunable via debugfs.
- * @dir: the debugfs directory for a specific phy
* @target: target percentage for failed frames
* @sampling_period: error sampling interval in milliseconds
* @coeff_p: absolute value of the proportional coefficient
@@ -143,7 +142,6 @@ struct rc_pid_events_file_info {
* ordering of rates)
*/
struct rc_pid_debugfs_entries {
- struct dentry *dir;
struct dentry *target;
struct dentry *sampling_period;
struct dentry *coeff_p;
@@ -180,6 +178,8 @@ struct rc_pid_sta_info {
u32 tx_num_failed;
u32 tx_num_xmit;
+ int txrate_idx;
+
/* Average failed frames percentage error (i.e. actual vs. target
* percentage), scaled by RC_PID_SMOOTHING. This value is computed
* using using an exponential weighted average technique:
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index a914ba73ccf..86eb374e3b8 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -68,17 +68,14 @@
* exhibited a worse failed frames behaviour and we'll choose the highest rate
* whose failed frames behaviour is not worse than the one of the original rate
* target. While at it, check that the new rate is valid. */
-static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
- struct sta_info *sta, int adj,
+static void rate_control_pid_adjust_rate(struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct rc_pid_sta_info *spinfo, int adj,
struct rc_pid_rateinfo *rinfo)
{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
int cur_sorted, new_sorted, probe, tmp, n_bitrates, band;
- int cur = sta->txrate_idx;
+ int cur = spinfo->txrate_idx;
- sdata = sta->sdata;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
band = sband->band;
n_bitrates = sband->n_bitrates;
@@ -111,7 +108,7 @@ static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
/* Fit the rate found to the nearest supported rate. */
do {
if (rate_supported(sta, band, rinfo[tmp].index)) {
- sta->txrate_idx = rinfo[tmp].index;
+ spinfo->txrate_idx = rinfo[tmp].index;
break;
}
if (adj < 0)
@@ -121,9 +118,9 @@ static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
} while (tmp < n_bitrates && tmp >= 0);
#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_rate_change(
- &((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events,
- sta->txrate_idx, sband->bitrates[sta->txrate_idx].bitrate);
+ rate_control_pid_event_rate_change(&spinfo->events,
+ spinfo->txrate_idx,
+ sband->bitrates[spinfo->txrate_idx].bitrate);
#endif
}
@@ -145,15 +142,11 @@ static void rate_control_pid_normalize(struct rc_pid_info *pinfo, int l)
}
static void rate_control_pid_sample(struct rc_pid_info *pinfo,
- struct ieee80211_local *local,
- struct sta_info *sta)
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct rc_pid_sta_info *spinfo)
{
-#ifdef CONFIG_MAC80211_MESH
- struct ieee80211_sub_if_data *sdata = sta->sdata;
-#endif
- struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
- struct ieee80211_supported_band *sband;
u32 pf;
s32 err_avg;
u32 err_prop;
@@ -162,9 +155,6 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
int adj, i, j, tmp;
unsigned long period;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- spinfo = sta->rate_ctrl_priv;
-
/* In case nothing happened during the previous control interval, turn
* the sharpening factor on. */
period = (HZ * pinfo->sampling_period + 500) / 1000;
@@ -180,14 +170,15 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
if (unlikely(spinfo->tx_num_xmit == 0))
pf = spinfo->last_pf;
else {
+ /* XXX: BAD HACK!!! */
+ struct sta_info *si = container_of(sta, struct sta_info, sta);
+
pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
-#ifdef CONFIG_MAC80211_MESH
- if (pf == 100 &&
- sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
- mesh_plink_broken(sta);
-#endif
+
+ if (ieee80211_vif_is_mesh(&si->sdata->vif) && pf == 100)
+ mesh_plink_broken(si);
pf <<= RC_PID_ARITH_SHIFT;
- sta->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
+ si->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
>> RC_PID_ARITH_SHIFT;
}
@@ -195,16 +186,16 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
spinfo->tx_num_failed = 0;
/* If we just switched rate, update the rate behaviour info. */
- if (pinfo->oldrate != sta->txrate_idx) {
+ if (pinfo->oldrate != spinfo->txrate_idx) {
i = rinfo[pinfo->oldrate].rev_index;
- j = rinfo[sta->txrate_idx].rev_index;
+ j = rinfo[spinfo->txrate_idx].rev_index;
tmp = (pf - spinfo->last_pf);
tmp = RC_PID_DO_ARITH_RIGHT_SHIFT(tmp, RC_PID_ARITH_SHIFT);
rinfo[j].diff = rinfo[i].diff + tmp;
- pinfo->oldrate = sta->txrate_idx;
+ pinfo->oldrate = spinfo->txrate_idx;
}
rate_control_pid_normalize(pinfo, sband->n_bitrates);
@@ -233,43 +224,26 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
/* Change rate. */
if (adj)
- rate_control_pid_adjust_rate(local, sta, adj, rinfo);
+ rate_control_pid_adjust_rate(sband, sta, spinfo, adj, rinfo);
}
-static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
+static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
struct rc_pid_info *pinfo = priv;
- struct sta_info *sta;
- struct rc_pid_sta_info *spinfo;
+ struct rc_pid_sta_info *spinfo = priv_sta;
unsigned long period;
- struct ieee80211_supported_band *sband;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- if (!sta)
- goto unlock;
-
- /* Don't update the state if we're not controlling the rate. */
- sdata = sta->sdata;
- if (sdata->force_unicast_rateidx > -1) {
- sta->txrate_idx = sdata->max_ratectrl_rateidx;
- goto unlock;
- }
+ if (!spinfo)
+ return;
/* Ignore all frames that were sent with a different rate than the rate
* we currently advise mac80211 to use. */
- if (info->tx_rate_idx != sta->txrate_idx)
- goto unlock;
+ if (info->tx_rate_idx != spinfo->txrate_idx)
+ return;
- spinfo = sta->rate_ctrl_priv;
spinfo->tx_num_xmit++;
#ifdef CONFIG_MAC80211_DEBUGFS
@@ -287,93 +261,68 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
spinfo->tx_num_xmit++;
}
- if (info->status.excessive_retries) {
- sta->tx_retry_failed++;
- sta->tx_num_consecutive_failures++;
- sta->tx_num_mpdu_fail++;
- } else {
- sta->tx_num_consecutive_failures = 0;
- sta->tx_num_mpdu_ok++;
- }
- sta->tx_retry_count += info->status.retry_count;
- sta->tx_num_mpdu_fail += info->status.retry_count;
-
/* Update PID controller state. */
period = (HZ * pinfo->sampling_period + 500) / 1000;
if (!period)
period = 1;
if (time_after(jiffies, spinfo->last_sample + period))
- rate_control_pid_sample(pinfo, local, sta);
-
- unlock:
- rcu_read_unlock();
+ rate_control_pid_sample(pinfo, sband, sta, spinfo);
}
-static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
+static void
+rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb,
+ struct rate_selection *sel)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
+ struct rc_pid_sta_info *spinfo = priv_sta;
int rateidx;
u16 fc;
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
-
/* Send management frames and broadcast/multicast data using lowest
* rate. */
fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- is_multicast_ether_addr(hdr->addr1) || !sta) {
- sel->rate_idx = rate_lowest_index(local, sband, sta);
- rcu_read_unlock();
+ if (!sta || !spinfo ||
+ (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ is_multicast_ether_addr(hdr->addr1)) {
+ sel->rate_idx = rate_lowest_index(sband, sta);
return;
}
- /* If a forced rate is in effect, select it. */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->force_unicast_rateidx > -1)
- sta->txrate_idx = sdata->force_unicast_rateidx;
-
- rateidx = sta->txrate_idx;
+ rateidx = spinfo->txrate_idx;
if (rateidx >= sband->n_bitrates)
rateidx = sband->n_bitrates - 1;
- sta->last_txrate_idx = rateidx;
-
- rcu_read_unlock();
-
sel->rate_idx = rateidx;
#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_tx_rate(
- &((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
+ rate_control_pid_event_tx_rate(&spinfo->events,
rateidx, sband->bitrates[rateidx].bitrate);
#endif
}
-static void rate_control_pid_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
+static void
+rate_control_pid_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
{
+ struct rc_pid_sta_info *spinfo = priv_sta;
+ struct sta_info *si;
+
/* TODO: This routine should consider using RSSI from previous packets
* as we need to have IEEE 802.1X auth succeed immediately after assoc..
* Until that method is implemented, we will use the lowest supported
* rate as a workaround. */
- struct ieee80211_supported_band *sband;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- sta->txrate_idx = rate_lowest_index(local, sband, sta);
- sta->fail_avg = 0;
+ spinfo->txrate_idx = rate_lowest_index(sband, sta);
+ /* HACK */
+ si = container_of(sta, struct sta_info, sta);
+ si->fail_avg = 0;
}
-static void *rate_control_pid_alloc(struct ieee80211_local *local)
+static void *rate_control_pid_alloc(struct ieee80211_hw *hw,
+ struct dentry *debugfsdir)
{
struct rc_pid_info *pinfo;
struct rc_pid_rateinfo *rinfo;
@@ -384,7 +333,7 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
struct rc_pid_debugfs_entries *de;
#endif
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ sband = hw->wiphy->bands[hw->conf.channel->band];
pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
if (!pinfo)
@@ -439,30 +388,28 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
#ifdef CONFIG_MAC80211_DEBUGFS
de = &pinfo->dentries;
- de->dir = debugfs_create_dir("rc80211_pid",
- local->hw.wiphy->debugfsdir);
de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->target);
+ debugfsdir, &pinfo->target);
de->sampling_period = debugfs_create_u32("sampling_period",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sampling_period);
de->coeff_p = debugfs_create_u32("coeff_p", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_p);
+ debugfsdir, &pinfo->coeff_p);
de->coeff_i = debugfs_create_u32("coeff_i", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_i);
+ debugfsdir, &pinfo->coeff_i);
de->coeff_d = debugfs_create_u32("coeff_d", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_d);
+ debugfsdir, &pinfo->coeff_d);
de->smoothing_shift = debugfs_create_u32("smoothing_shift",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->smoothing_shift);
de->sharpen_factor = debugfs_create_u32("sharpen_factor",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sharpen_factor);
de->sharpen_duration = debugfs_create_u32("sharpen_duration",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sharpen_duration);
de->norm_offset = debugfs_create_u32("norm_offset",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->norm_offset);
#endif
@@ -484,7 +431,6 @@ static void rate_control_pid_free(void *priv)
debugfs_remove(de->coeff_p);
debugfs_remove(de->sampling_period);
debugfs_remove(de->target);
- debugfs_remove(de->dir);
#endif
kfree(pinfo->rinfo);
@@ -495,7 +441,8 @@ static void rate_control_pid_clear(void *priv)
{
}
-static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
+static void *rate_control_pid_alloc_sta(void *priv, struct ieee80211_sta *sta,
+ gfp_t gfp)
{
struct rc_pid_sta_info *spinfo;
@@ -513,10 +460,10 @@ static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
return spinfo;
}
-static void rate_control_pid_free_sta(void *priv, void *priv_sta)
+static void rate_control_pid_free_sta(void *priv, struct ieee80211_sta *sta,
+ void *priv_sta)
{
- struct rc_pid_sta_info *spinfo = priv_sta;
- kfree(spinfo);
+ kfree(priv_sta);
}
static struct rate_control_ops mac80211_rcpid = {
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6db85450519..cf6b121e1bb 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -143,6 +143,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* IEEE80211_RADIOTAP_FLAGS */
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
*pos |= IEEE80211_RADIOTAP_F_FCS;
+ if (status->flag & RX_FLAG_SHORTPRE)
+ *pos |= IEEE80211_RADIOTAP_F_SHORTPRE;
pos++;
/* IEEE80211_RADIOTAP_RATE */
@@ -155,8 +157,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->band == IEEE80211_BAND_5GHZ)
*(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_5GHZ);
+ else if (rate->flags & IEEE80211_RATE_ERP_G)
+ *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
+ IEEE80211_CHAN_2GHZ);
else
- *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_DYN |
+ *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_CCK |
IEEE80211_CHAN_2GHZ);
pos += 2;
@@ -290,7 +295,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
if (!netif_running(sdata->dev))
continue;
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR)
+ if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
continue;
if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)
@@ -398,12 +403,12 @@ ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
struct ieee80211_local *local = rx->local;
struct sk_buff *skb = rx->skb;
- if (unlikely(local->sta_hw_scanning))
- return ieee80211_sta_rx_scan(rx->dev, skb, rx->status);
+ if (unlikely(local->hw_scanning))
+ return ieee80211_scan_rx(rx->sdata, skb, rx->status);
- if (unlikely(local->sta_sw_scanning)) {
+ if (unlikely(local->sw_scanning)) {
/* drop all the other packets during a software scan anyway */
- if (ieee80211_sta_rx_scan(rx->dev, skb, rx->status)
+ if (ieee80211_scan_rx(rx->sdata, skb, rx->status)
!= RX_QUEUED)
dev_kfree_skb(skb);
return RX_QUEUED;
@@ -461,7 +466,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
if (ieee80211_is_data(hdr->frame_control) &&
is_multicast_ether_addr(hdr->addr1) &&
- mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->dev))
+ mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->sdata))
return RX_DROP_MONITOR;
#undef msh_h_get
@@ -496,8 +501,8 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
/* Drop disallowed frame classes based on STA auth/assoc state;
* IEEE 802.11, Chap 5.5.
*
- * 80211.o does filtering only based on association state, i.e., it
- * drops Class 3 frames from not associated stations. hostapd sends
+ * mac80211 filters only based on association state, i.e. it drops
+ * Class 3 frames from not associated stations. hostapd sends
* deauth/disassoc frames when needed. In addition, hostapd is
* responsible for filtering on both auth and assoc states.
*/
@@ -507,7 +512,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
if (unlikely((ieee80211_is_data(hdr->frame_control) ||
ieee80211_is_pspoll(hdr->frame_control)) &&
- rx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ rx->sdata->vif.type != NL80211_IFTYPE_ADHOC &&
(!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) {
if ((!ieee80211_has_fromds(hdr->frame_control) &&
!ieee80211_has_tods(hdr->frame_control) &&
@@ -645,32 +650,28 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
return result;
}
-static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
+static void ap_sta_ps_start(struct sta_info *sta)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
DECLARE_MAC_BUF(mac);
- sdata = sta->sdata;
-
atomic_inc(&sdata->bss->num_sta_ps);
set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
- dev->name, print_mac(mac, sta->addr), sta->aid);
+ sdata->dev->name, print_mac(mac, sta->sta.addr), sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
}
-static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
+static int ap_sta_ps_end(struct sta_info *sta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
+ struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
int sent = 0;
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_tx_info *info;
DECLARE_MAC_BUF(mac);
- sdata = sta->sdata;
-
atomic_dec(&sdata->bss->num_sta_ps);
clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
@@ -680,7 +681,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %s aid %d exits power save mode\n",
- dev->name, print_mac(mac, sta->addr), sta->aid);
+ sdata->dev->name, print_mac(mac, sta->sta.addr), sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
/* Send all buffered frames to the station */
@@ -696,8 +697,8 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
sent++;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %s aid %d send PS frame "
- "since STA not sleeping anymore\n", dev->name,
- print_mac(mac, sta->addr), sta->aid);
+ "since STA not sleeping anymore\n", sdata->dev->name,
+ print_mac(mac, sta->sta.addr), sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
info->flags |= IEEE80211_TX_CTL_REQUEUE;
dev_queue_xmit(skb);
@@ -710,7 +711,6 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
{
struct sta_info *sta = rx->sta;
- struct net_device *dev = rx->dev;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
if (!sta)
@@ -719,14 +719,14 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
/* Update last_rx only for IBSS packets which are for the current
* BSSID to avoid keeping the current IBSS network alive in cases where
* other STAs are using different BSSID. */
- if (rx->sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) {
u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
- IEEE80211_IF_TYPE_IBSS);
+ NL80211_IFTYPE_ADHOC);
if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
sta->last_rx = jiffies;
} else
if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+ rx->sdata->vif.type == NL80211_IFTYPE_STATION) {
/* Update last_rx only for unicast frames in order to prevent
* the Probe Request frames (the only broadcast frames from a
* STA in infrastructure mode) from keeping a connection alive.
@@ -746,16 +746,16 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
sta->last_noise = rx->status->noise;
if (!ieee80211_has_morefrags(hdr->frame_control) &&
- (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP ||
- rx->sdata->vif.type == IEEE80211_IF_TYPE_VLAN)) {
+ (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
+ rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) {
/* Change STA power saving mode only in the end of a frame
* exchange sequence */
if (test_sta_flags(sta, WLAN_STA_PS) &&
!ieee80211_has_pm(hdr->frame_control))
- rx->sent_ps_buffered += ap_sta_ps_end(dev, sta);
+ rx->sent_ps_buffered += ap_sta_ps_end(sta);
else if (!test_sta_flags(sta, WLAN_STA_PS) &&
ieee80211_has_pm(hdr->frame_control))
- ap_sta_ps_start(dev, sta);
+ ap_sta_ps_start(sta);
}
/* Drop data::nullfunc frames silently, since they are used only to
@@ -816,7 +816,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
static inline struct ieee80211_fragment_entry *
ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
- u16 fc, unsigned int frag, unsigned int seq,
+ unsigned int frag, unsigned int seq,
int rx_queue, struct ieee80211_hdr *hdr)
{
struct ieee80211_fragment_entry *entry;
@@ -825,7 +825,6 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
idx = sdata->fragment_next;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
struct ieee80211_hdr *f_hdr;
- u16 f_fc;
idx--;
if (idx < 0)
@@ -837,10 +836,13 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
entry->last_frag + 1 != frag)
continue;
- f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
- f_fc = le16_to_cpu(f_hdr->frame_control);
+ f_hdr = (struct ieee80211_hdr *)entry->skb_list.next->data;
- if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
+ /*
+ * Check ftype and addresses are equal, else check next fragment
+ */
+ if (((hdr->frame_control ^ f_hdr->frame_control) &
+ cpu_to_le16(IEEE80211_FCTL_FTYPE)) ||
compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
continue;
@@ -860,16 +862,18 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr;
u16 sc;
+ __le16 fc;
unsigned int frag, seq;
struct ieee80211_fragment_entry *entry;
struct sk_buff *skb;
DECLARE_MAC_BUF(mac);
- hdr = (struct ieee80211_hdr *) rx->skb->data;
+ hdr = (struct ieee80211_hdr *)rx->skb->data;
+ fc = hdr->frame_control;
sc = le16_to_cpu(hdr->seq_ctrl);
frag = sc & IEEE80211_SCTL_FRAG;
- if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
+ if (likely((!ieee80211_has_morefrags(fc) && frag == 0) ||
(rx->skb)->len < 24 ||
is_multicast_ether_addr(hdr->addr1))) {
/* not fragmented */
@@ -884,7 +888,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
rx->queue, &(rx->skb));
if (rx->key && rx->key->conf.alg == ALG_CCMP &&
- (rx->fc & IEEE80211_FCTL_PROTECTED)) {
+ ieee80211_has_protected(fc)) {
/* Store CCMP PN so that we can verify that the next
* fragment has a sequential PN value. */
entry->ccmp = 1;
@@ -898,8 +902,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
/* This is a fragment for a frame that should already be pending in
* fragment cache. Add this fragment to the end of the pending entry.
*/
- entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
- rx->queue, hdr);
+ entry = ieee80211_reassemble_find(rx->sdata, frag, seq, rx->queue, hdr);
if (!entry) {
I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
return RX_DROP_MONITOR;
@@ -924,11 +927,11 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
memcpy(entry->last_pn, pn, CCMP_PN_LEN);
}
- skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
+ skb_pull(rx->skb, ieee80211_hdrlen(fc));
__skb_queue_tail(&entry->skb_list, rx->skb);
entry->last_frag = frag;
entry->extra_len += rx->skb->len;
- if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
+ if (ieee80211_has_morefrags(fc)) {
rx->skb = NULL;
return RX_QUEUED;
}
@@ -968,15 +971,14 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
struct sk_buff *skb;
int no_pending_pkts;
DECLARE_MAC_BUF(mac);
+ __le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control;
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
+ if (likely(!rx->sta || !ieee80211_is_pspoll(fc) ||
!(rx->flags & IEEE80211_RX_RA_MATCH)))
return RX_CONTINUE;
- if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) &&
- (sdata->vif.type != IEEE80211_IF_TYPE_VLAN))
+ if ((sdata->vif.type != NL80211_IFTYPE_AP) &&
+ (sdata->vif.type != NL80211_IFTYPE_AP_VLAN))
return RX_DROP_UNUSABLE;
skb = skb_dequeue(&rx->sta->tx_filtered);
@@ -1000,7 +1002,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",
- print_mac(mac, rx->sta->addr), rx->sta->aid,
+ print_mac(mac, rx->sta->sta.addr), rx->sta->sta.aid,
skb_queue_len(&rx->sta->ps_tx_buf));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
@@ -1025,7 +1027,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
*/
printk(KERN_DEBUG "%s: STA %s sent PS Poll even "
"though there are no buffered frames for it\n",
- rx->dev->name, print_mac(mac, rx->sta->addr));
+ rx->dev->name, print_mac(mac, rx->sta->sta.addr));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
}
@@ -1050,7 +1052,6 @@ ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx)
ieee80211_hdrlen(hdr->frame_control) - IEEE80211_QOS_CTL_LEN);
hdr = (struct ieee80211_hdr *)skb_pull(rx->skb, IEEE80211_QOS_CTL_LEN);
/* change frame type to non QOS */
- rx->fc &= ~IEEE80211_STYPE_QOS_DATA;
hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
return RX_CONTINUE;
@@ -1067,7 +1068,7 @@ ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
}
static int
-ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx)
+ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
{
/*
* Pass through unencrypted frames if the hardware has
@@ -1077,9 +1078,8 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx)
return 0;
/* Drop unencrypted frames if key is set. */
- if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ if (unlikely(!ieee80211_has_protected(fc) &&
+ !ieee80211_is_nullfunc(fc) &&
(rx->key || rx->sdata->drop_unencrypted)))
return -EACCES;
@@ -1091,7 +1091,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
{
struct net_device *dev = rx->dev;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc, hdrlen, ethertype;
+ u16 hdrlen, ethertype;
u8 *payload;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN] __aligned(2);
@@ -1102,16 +1102,10 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
DECLARE_MAC_BUF(mac3);
DECLARE_MAC_BUF(mac4);
- fc = rx->fc;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return -1;
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (ieee80211_vif_is_mesh(&sdata->vif))
- hdrlen += ieee80211_get_mesh_hdrlen(
- (struct ieee80211s_hdr *) (skb->data + hdrlen));
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
/* convert IEEE 802.11 header + possible LLC headers into Ethernet
* header
@@ -1122,42 +1116,38 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
* 1 0 BSSID SA DA n/a
* 1 1 RA TA DA SA
*/
-
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- /* BSSID SA DA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_AP &&
- sdata->vif.type != IEEE80211_IF_TYPE_VLAN))
+ memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
+ memcpy(src, ieee80211_get_SA(hdr), ETH_ALEN);
+
+ switch (hdr->frame_control &
+ cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+ case __constant_cpu_to_le16(IEEE80211_FCTL_TODS):
+ if (unlikely(sdata->vif.type != NL80211_IFTYPE_AP &&
+ sdata->vif.type != NL80211_IFTYPE_AP_VLAN))
return -1;
break;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- /* RA TA DA SA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr4, ETH_ALEN);
-
- if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS &&
- sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT))
+ case __constant_cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+ if (unlikely(sdata->vif.type != NL80211_IFTYPE_WDS &&
+ sdata->vif.type != NL80211_IFTYPE_MESH_POINT))
return -1;
+ if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ struct ieee80211s_hdr *meshdr = (struct ieee80211s_hdr *)
+ (skb->data + hdrlen);
+ hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+ if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
+ memcpy(dst, meshdr->eaddr1, ETH_ALEN);
+ memcpy(src, meshdr->eaddr2, ETH_ALEN);
+ }
+ }
break;
- case IEEE80211_FCTL_FROMDS:
- /* DA BSSID SA */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr3, ETH_ALEN);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA ||
+ case __constant_cpu_to_le16(IEEE80211_FCTL_FROMDS):
+ if (sdata->vif.type != NL80211_IFTYPE_STATION ||
(is_multicast_ether_addr(dst) &&
!compare_ether_addr(src, dev->dev_addr)))
return -1;
break;
- case 0:
- /* DA SA BSSID */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+ case __constant_cpu_to_le16(0):
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
return -1;
break;
}
@@ -1193,7 +1183,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
/*
* requires that rx->skb is a frame with ethernet header
*/
-static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
+static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
{
static const u8 pae_group_addr[ETH_ALEN] __aligned(2)
= { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
@@ -1209,7 +1199,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
return true;
if (ieee80211_802_1x_port_control(rx) ||
- ieee80211_drop_unencrypted(rx))
+ ieee80211_drop_unencrypted(rx, fc))
return false;
return true;
@@ -1231,8 +1221,9 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
skb = rx->skb;
xmit_skb = NULL;
- if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP ||
- sdata->vif.type == IEEE80211_IF_TYPE_VLAN) &&
+ if ((sdata->vif.type == NL80211_IFTYPE_AP ||
+ sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
+ !(sdata->flags & IEEE80211_SDATA_DONT_BRIDGE_PACKETS) &&
(rx->flags & IEEE80211_RX_RA_MATCH)) {
if (is_multicast_ether_addr(ehdr->h_dest)) {
/*
@@ -1279,20 +1270,21 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
{
struct net_device *dev = rx->dev;
struct ieee80211_local *local = rx->local;
- u16 fc, ethertype;
+ u16 ethertype;
u8 *payload;
struct sk_buff *skb = rx->skb, *frame = NULL;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ __le16 fc = hdr->frame_control;
const struct ethhdr *eth;
int remaining, err;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
DECLARE_MAC_BUF(mac);
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ if (unlikely(!ieee80211_is_data(fc)))
return RX_CONTINUE;
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ if (unlikely(!ieee80211_is_data_present(fc)))
return RX_DROP_MONITOR;
if (!(rx->flags & IEEE80211_RX_AMSDU))
@@ -1374,7 +1366,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
}
- if (!ieee80211_frame_allowed(rx)) {
+ if (!ieee80211_frame_allowed(rx, fc)) {
if (skb == frame) /* last frame */
return RX_DROP_UNUSABLE;
dev_kfree_skb(frame);
@@ -1387,7 +1379,8 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
return RX_QUEUED;
}
-static ieee80211_rx_result debug_noinline
+#ifdef CONFIG_MAC80211_MESH
+static ieee80211_rx_result
ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr;
@@ -1406,6 +1399,25 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
/* illegal frame */
return RX_DROP_MONITOR;
+ if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
+ struct ieee80211_sub_if_data *sdata;
+ struct mesh_path *mppath;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ rcu_read_lock();
+ mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
+ if (!mppath) {
+ mpp_path_add(mesh_hdr->eaddr2, hdr->addr4, sdata);
+ } else {
+ spin_lock_bh(&mppath->state_lock);
+ mppath->exp_time = jiffies;
+ if (compare_ether_addr(mppath->mpp, hdr->addr4) != 0)
+ memcpy(mppath->mpp, hdr->addr4, ETH_ALEN);
+ spin_unlock_bh(&mppath->state_lock);
+ }
+ rcu_read_unlock();
+ }
+
if (compare_ether_addr(rx->dev->dev_addr, hdr->addr3) == 0)
return RX_CONTINUE;
@@ -1413,7 +1425,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
if (rx->flags & IEEE80211_RX_RA_MATCH) {
if (!mesh_hdr->ttl)
- IEEE80211_IFSTA_MESH_CTR_INC(&rx->sdata->u.sta,
+ IEEE80211_IFSTA_MESH_CTR_INC(&rx->sdata->u.mesh,
dropped_frames_ttl);
else {
struct ieee80211_hdr *fwd_hdr;
@@ -1442,27 +1454,27 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
else
return RX_DROP_MONITOR;
}
-
+#endif
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
{
struct net_device *dev = rx->dev;
- u16 fc;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ __le16 fc = hdr->frame_control;
int err;
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ if (unlikely(!ieee80211_is_data(hdr->frame_control)))
return RX_CONTINUE;
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return RX_DROP_MONITOR;
err = ieee80211_data_to_8023(rx);
if (unlikely(err))
return RX_DROP_UNUSABLE;
- if (!ieee80211_frame_allowed(rx))
+ if (!ieee80211_frame_allowed(rx, fc))
return RX_DROP_MONITOR;
rx->skb->dev = dev;
@@ -1520,22 +1532,97 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
}
static ieee80211_rx_result debug_noinline
+ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
+ int len = rx->skb->len;
+
+ if (!ieee80211_is_action(mgmt->frame_control))
+ return RX_CONTINUE;
+
+ if (!rx->sta)
+ return RX_DROP_MONITOR;
+
+ if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ return RX_DROP_MONITOR;
+
+ /* all categories we currently handle have action_code */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ return RX_DROP_MONITOR;
+
+ /*
+ * FIXME: revisit this, I'm sure we should handle most
+ * of these frames in other modes as well!
+ */
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
+ return RX_CONTINUE;
+
+ switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_BACK:
+ switch (mgmt->u.action.u.addba_req.action_code) {
+ case WLAN_ACTION_ADDBA_REQ:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.addba_req)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_addba_request(local, rx->sta, mgmt, len);
+ break;
+ case WLAN_ACTION_ADDBA_RESP:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.addba_resp)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_addba_resp(local, rx->sta, mgmt, len);
+ break;
+ case WLAN_ACTION_DELBA:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.delba)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_delba(sdata, rx->sta, mgmt, len);
+ break;
+ }
+ break;
+ case WLAN_CATEGORY_SPECTRUM_MGMT:
+ if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
+ return RX_DROP_MONITOR;
+ switch (mgmt->u.action.u.measurement.action_code) {
+ case WLAN_ACTION_SPCT_MSR_REQ:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.measurement)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_measurement_req(sdata, mgmt, len);
+ break;
+ }
+ break;
+ default:
+ return RX_CONTINUE;
+ }
+
+ rx->sta->rx_packets++;
+ dev_kfree_skb(rx->skb);
+ return RX_QUEUED;
+}
+
+static ieee80211_rx_result debug_noinline
ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_MONITOR;
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS ||
- sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->status);
- else
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status);
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
return RX_DROP_MONITOR;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
+ return RX_DROP_MONITOR;
+
+ ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
return RX_QUEUED;
}
@@ -1565,7 +1652,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
if (!ieee80211_has_protected(hdr->frame_control))
goto ignore;
- if (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP && keyidx) {
+ if (rx->sdata->vif.type == NL80211_IFTYPE_AP && keyidx) {
/*
* APs with pairwise keys should never receive Michael MIC
* errors for non-zero keyidx because these are reserved for
@@ -1579,7 +1666,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
!ieee80211_is_auth(hdr->frame_control))
goto ignore;
- mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
+ mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr);
ignore:
dev_kfree_skb(rx->skb);
rx->skb = NULL;
@@ -1635,7 +1722,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx)
if (!netif_running(sdata->dev))
continue;
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR ||
+ if (sdata->vif.type != NL80211_IFTYPE_MONITOR ||
!(sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
continue;
@@ -1694,10 +1781,13 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
/* must be after MMIC verify so header is counted in MPDU mic */
CALL_RXH(ieee80211_rx_h_remove_qos_control)
CALL_RXH(ieee80211_rx_h_amsdu)
+#ifdef CONFIG_MAC80211_MESH
if (ieee80211_vif_is_mesh(&sdata->vif))
CALL_RXH(ieee80211_rx_h_mesh_fwding);
+#endif
CALL_RXH(ieee80211_rx_h_data)
CALL_RXH(ieee80211_rx_h_ctrl)
+ CALL_RXH(ieee80211_rx_h_action)
CALL_RXH(ieee80211_rx_h_mgmt)
#undef CALL_RXH
@@ -1733,7 +1823,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
int multicast = is_multicast_ether_addr(hdr->addr1);
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_STA:
+ case NL80211_IFTYPE_STATION:
if (!bssid)
return 0;
if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
@@ -1748,14 +1838,10 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
rx->flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
- case IEEE80211_IF_TYPE_IBSS:
+ case NL80211_IFTYPE_ADHOC:
if (!bssid)
return 0;
if (ieee80211_is_beacon(hdr->frame_control)) {
- if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev,
- rx->skb, bssid, hdr->addr2,
- BIT(rx->status->rate_idx));
return 1;
}
else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
@@ -1769,11 +1855,11 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
return 0;
rx->flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
+ rx->sta = ieee80211_ibss_add_sta(sdata, rx->skb,
bssid, hdr->addr2,
BIT(rx->status->rate_idx));
break;
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_MESH_POINT:
if (!multicast &&
compare_ether_addr(sdata->dev->dev_addr,
hdr->addr1) != 0) {
@@ -1783,8 +1869,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
rx->flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
- case IEEE80211_IF_TYPE_VLAN:
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_AP:
if (!bssid) {
if (compare_ether_addr(sdata->dev->dev_addr,
hdr->addr1))
@@ -1796,16 +1882,17 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
rx->flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
if (bssid || !ieee80211_is_data(hdr->frame_control))
return 0;
if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
return 0;
break;
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_MONITOR:
/* take everything */
break;
- case IEEE80211_IF_TYPE_INVALID:
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case __NL80211_IFTYPE_AFTER_LAST:
/* should never get here */
WARN_ON(1);
break;
@@ -1827,23 +1914,20 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr;
struct ieee80211_rx_data rx;
- u16 type;
int prepares;
struct ieee80211_sub_if_data *prev = NULL;
struct sk_buff *skb_new;
u8 *bssid;
- hdr = (struct ieee80211_hdr *) skb->data;
+ hdr = (struct ieee80211_hdr *)skb->data;
memset(&rx, 0, sizeof(rx));
rx.skb = skb;
rx.local = local;
rx.status = status;
rx.rate = rate;
- rx.fc = le16_to_cpu(hdr->frame_control);
- type = rx.fc & IEEE80211_FCTL_FTYPE;
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
+ if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control))
local->dot11ReceivedFragmentCount++;
rx.sta = sta_info_get(local, hdr->addr2);
@@ -1857,7 +1941,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
return;
}
- if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning))
+ if (unlikely(local->sw_scanning || local->hw_scanning))
rx.flags |= IEEE80211_RX_IN_SCAN;
ieee80211_parse_qos(&rx);
@@ -1869,7 +1953,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
if (!netif_running(sdata->dev))
continue;
- if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR)
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
continue;
bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
@@ -1904,14 +1988,12 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
prev->dev->name);
continue;
}
- rx.fc = le16_to_cpu(hdr->frame_control);
ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
prev = sdata;
}
- if (prev) {
- rx.fc = le16_to_cpu(hdr->frame_control);
+ if (prev)
ieee80211_invoke_rx_handlers(prev, &rx, skb);
- } else
+ else
dev_kfree_skb(skb);
}
@@ -2080,7 +2162,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
/* if this mpdu is fragmented - terminate rx aggregation session */
sc = le16_to_cpu(hdr->seq_ctrl);
if (sc & IEEE80211_SCTL_FRAG) {
- ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
+ ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->sta.addr,
tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
ret = 1;
goto end_reorder;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
new file mode 100644
index 00000000000..416bb41099f
--- /dev/null
+++ b/net/mac80211/scan.c
@@ -0,0 +1,938 @@
+/*
+ * Scanning implementation
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* TODO:
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ * SSID)
+ */
+
+#include <linux/wireless.h>
+#include <linux/if_arp.h>
+#include <net/mac80211.h>
+#include <net/iw_handler.h>
+
+#include "ieee80211_i.h"
+#include "mesh.h"
+
+#define IEEE80211_PROBE_DELAY (HZ / 33)
+#define IEEE80211_CHANNEL_TIME (HZ / 33)
+#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
+
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
+{
+ spin_lock_init(&local->bss_lock);
+ INIT_LIST_HEAD(&local->bss_list);
+}
+
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
+{
+ struct ieee80211_bss *bss, *tmp;
+
+ list_for_each_entry_safe(bss, tmp, &local->bss_list, list)
+ ieee80211_rx_bss_put(local, bss);
+}
+
+struct ieee80211_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+ u8 *ssid, u8 ssid_len)
+{
+ struct ieee80211_bss *bss;
+
+ spin_lock_bh(&local->bss_lock);
+ bss = local->bss_hash[STA_HASH(bssid)];
+ while (bss) {
+ if (!bss_mesh_cfg(bss) &&
+ !memcmp(bss->bssid, bssid, ETH_ALEN) &&
+ bss->freq == freq &&
+ bss->ssid_len == ssid_len &&
+ (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
+ atomic_inc(&bss->users);
+ break;
+ }
+ bss = bss->hnext;
+ }
+ spin_unlock_bh(&local->bss_lock);
+ return bss;
+}
+
+/* Caller must hold local->bss_lock */
+static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local,
+ struct ieee80211_bss *bss)
+{
+ u8 hash_idx;
+
+ if (bss_mesh_cfg(bss))
+ hash_idx = mesh_id_hash(bss_mesh_id(bss),
+ bss_mesh_id_len(bss));
+ else
+ hash_idx = STA_HASH(bss->bssid);
+
+ bss->hnext = local->bss_hash[hash_idx];
+ local->bss_hash[hash_idx] = bss;
+}
+
+/* Caller must hold local->bss_lock */
+static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
+ struct ieee80211_bss *bss)
+{
+ struct ieee80211_bss *b, *prev = NULL;
+ b = local->bss_hash[STA_HASH(bss->bssid)];
+ while (b) {
+ if (b == bss) {
+ if (!prev)
+ local->bss_hash[STA_HASH(bss->bssid)] =
+ bss->hnext;
+ else
+ prev->hnext = bss->hnext;
+ break;
+ }
+ prev = b;
+ b = b->hnext;
+ }
+}
+
+struct ieee80211_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+ u8 *ssid, u8 ssid_len)
+{
+ struct ieee80211_bss *bss;
+
+ bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+ if (!bss)
+ return NULL;
+ atomic_set(&bss->users, 2);
+ memcpy(bss->bssid, bssid, ETH_ALEN);
+ bss->freq = freq;
+ if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
+ memcpy(bss->ssid, ssid, ssid_len);
+ bss->ssid_len = ssid_len;
+ }
+
+ spin_lock_bh(&local->bss_lock);
+ /* TODO: order by RSSI? */
+ list_add_tail(&bss->list, &local->bss_list);
+ __ieee80211_rx_bss_hash_add(local, bss);
+ spin_unlock_bh(&local->bss_lock);
+ return bss;
+}
+
+#ifdef CONFIG_MAC80211_MESH
+static struct ieee80211_bss *
+ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+ u8 *mesh_cfg, int freq)
+{
+ struct ieee80211_bss *bss;
+
+ spin_lock_bh(&local->bss_lock);
+ bss = local->bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
+ while (bss) {
+ if (bss_mesh_cfg(bss) &&
+ !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
+ bss->freq == freq &&
+ mesh_id_len == bss->mesh_id_len &&
+ (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
+ mesh_id_len))) {
+ atomic_inc(&bss->users);
+ break;
+ }
+ bss = bss->hnext;
+ }
+ spin_unlock_bh(&local->bss_lock);
+ return bss;
+}
+
+static struct ieee80211_bss *
+ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+ u8 *mesh_cfg, int mesh_config_len, int freq)
+{
+ struct ieee80211_bss *bss;
+
+ if (mesh_config_len != MESH_CFG_LEN)
+ return NULL;
+
+ bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+ if (!bss)
+ return NULL;
+
+ bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
+ if (!bss->mesh_cfg) {
+ kfree(bss);
+ return NULL;
+ }
+
+ if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
+ bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
+ if (!bss->mesh_id) {
+ kfree(bss->mesh_cfg);
+ kfree(bss);
+ return NULL;
+ }
+ memcpy(bss->mesh_id, mesh_id, mesh_id_len);
+ }
+
+ atomic_set(&bss->users, 2);
+ memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
+ bss->mesh_id_len = mesh_id_len;
+ bss->freq = freq;
+ spin_lock_bh(&local->bss_lock);
+ /* TODO: order by RSSI? */
+ list_add_tail(&bss->list, &local->bss_list);
+ __ieee80211_rx_bss_hash_add(local, bss);
+ spin_unlock_bh(&local->bss_lock);
+ return bss;
+}
+#endif
+
+static void ieee80211_rx_bss_free(struct ieee80211_bss *bss)
+{
+ kfree(bss->ies);
+ kfree(bss_mesh_id(bss));
+ kfree(bss_mesh_cfg(bss));
+ kfree(bss);
+}
+
+void ieee80211_rx_bss_put(struct ieee80211_local *local,
+ struct ieee80211_bss *bss)
+{
+ local_bh_disable();
+ if (!atomic_dec_and_lock(&bss->users, &local->bss_lock)) {
+ local_bh_enable();
+ return;
+ }
+
+ __ieee80211_rx_bss_hash_del(local, bss);
+ list_del(&bss->list);
+ spin_unlock_bh(&local->bss_lock);
+ ieee80211_rx_bss_free(bss);
+}
+
+struct ieee80211_bss *
+ieee80211_bss_info_update(struct ieee80211_local *local,
+ struct ieee80211_rx_status *rx_status,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee802_11_elems *elems,
+ int freq, bool beacon)
+{
+ struct ieee80211_bss *bss;
+ int clen;
+
+#ifdef CONFIG_MAC80211_MESH
+ if (elems->mesh_config)
+ bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
+ elems->mesh_id_len, elems->mesh_config, freq);
+ else
+#endif
+ bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq,
+ elems->ssid, elems->ssid_len);
+ if (!bss) {
+#ifdef CONFIG_MAC80211_MESH
+ if (elems->mesh_config)
+ bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id,
+ elems->mesh_id_len, elems->mesh_config,
+ elems->mesh_config_len, freq);
+ else
+#endif
+ bss = ieee80211_rx_bss_add(local, mgmt->bssid, freq,
+ elems->ssid, elems->ssid_len);
+ if (!bss)
+ return NULL;
+ } else {
+#if 0
+ /* TODO: order by RSSI? */
+ spin_lock_bh(&local->bss_lock);
+ list_move_tail(&bss->list, &local->bss_list);
+ spin_unlock_bh(&local->bss_lock);
+#endif
+ }
+
+ /* save the ERP value so that it is available at association time */
+ if (elems->erp_info && elems->erp_info_len >= 1) {
+ bss->erp_value = elems->erp_info[0];
+ bss->has_erp_value = 1;
+ }
+
+ bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
+ bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+
+ if (elems->tim) {
+ struct ieee80211_tim_ie *tim_ie =
+ (struct ieee80211_tim_ie *)elems->tim;
+ bss->dtim_period = tim_ie->dtim_period;
+ }
+
+ /* set default value for buggy APs */
+ if (!elems->tim || bss->dtim_period == 0)
+ bss->dtim_period = 1;
+
+ bss->supp_rates_len = 0;
+ if (elems->supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems->supp_rates_len)
+ clen = elems->supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
+ clen);
+ bss->supp_rates_len += clen;
+ }
+ if (elems->ext_supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems->ext_supp_rates_len)
+ clen = elems->ext_supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len],
+ elems->ext_supp_rates, clen);
+ bss->supp_rates_len += clen;
+ }
+
+ bss->band = rx_status->band;
+
+ bss->timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+ bss->last_update = jiffies;
+ bss->signal = rx_status->signal;
+ bss->noise = rx_status->noise;
+ bss->qual = rx_status->qual;
+ bss->wmm_used = elems->wmm_param || elems->wmm_info;
+
+ if (!beacon)
+ bss->last_probe_resp = jiffies;
+
+ /*
+ * For probe responses, or if we don't have any information yet,
+ * use the IEs from the beacon.
+ */
+ if (!bss->ies || !beacon) {
+ if (bss->ies == NULL || bss->ies_len < elems->total_len) {
+ kfree(bss->ies);
+ bss->ies = kmalloc(elems->total_len, GFP_ATOMIC);
+ }
+ if (bss->ies) {
+ memcpy(bss->ies, elems->ie_start, elems->total_len);
+ bss->ies_len = elems->total_len;
+ } else
+ bss->ies_len = 0;
+ }
+
+ return bss;
+}
+
+ieee80211_rx_result
+ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_bss *bss;
+ u8 *elements;
+ struct ieee80211_channel *channel;
+ size_t baselen;
+ int freq;
+ __le16 fc;
+ bool presp, beacon = false;
+ struct ieee802_11_elems elems;
+
+ if (skb->len < 2)
+ return RX_DROP_UNUSABLE;
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = mgmt->frame_control;
+
+ if (ieee80211_is_ctl(fc))
+ return RX_CONTINUE;
+
+ if (skb->len < 24)
+ return RX_DROP_MONITOR;
+
+ presp = ieee80211_is_probe_resp(fc);
+ if (presp) {
+ /* ignore ProbeResp to foreign address */
+ if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+ return RX_DROP_MONITOR;
+
+ presp = true;
+ elements = mgmt->u.probe_resp.variable;
+ baselen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
+ } else {
+ beacon = ieee80211_is_beacon(fc);
+ baselen = offsetof(struct ieee80211_mgmt, u.beacon.variable);
+ elements = mgmt->u.beacon.variable;
+ }
+
+ if (!presp && !beacon)
+ return RX_CONTINUE;
+
+ if (baselen > skb->len)
+ return RX_DROP_MONITOR;
+
+ ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
+
+ if (elems.ds_params && elems.ds_params_len == 1)
+ freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
+ else
+ freq = rx_status->freq;
+
+ channel = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
+
+ if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+ return RX_DROP_MONITOR;
+
+ bss = ieee80211_bss_info_update(sdata->local, rx_status,
+ mgmt, skb->len, &elems,
+ freq, beacon);
+ if (bss)
+ ieee80211_rx_bss_put(sdata->local, bss);
+
+ dev_kfree_skb(skb);
+ return RX_QUEUED;
+}
+
+static void ieee80211_send_nullfunc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ int powersave)
+{
+ struct sk_buff *skb;
+ struct ieee80211_hdr *nullfunc;
+ __le16 fc;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+ "frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+ memset(nullfunc, 0, 24);
+ fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+ IEEE80211_FCTL_TODS);
+ if (powersave)
+ fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+ nullfunc->frame_control = fc;
+ memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_scan_completed(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+ union iwreq_data wrqu;
+
+ if (WARN_ON(!local->hw_scanning && !local->sw_scanning))
+ return;
+
+ local->last_scan_completed = jiffies;
+ memset(&wrqu, 0, sizeof(wrqu));
+
+ /*
+ * local->scan_sdata could have been NULLed by the interface
+ * down code in case we were scanning on an interface that is
+ * being taken down.
+ */
+ sdata = local->scan_sdata;
+ if (sdata)
+ wireless_send_event(sdata->dev, SIOCGIWSCAN, &wrqu, NULL);
+
+ if (local->hw_scanning) {
+ local->hw_scanning = false;
+ if (ieee80211_hw_config(local))
+ printk(KERN_DEBUG "%s: failed to restore operational "
+ "channel after scan\n", wiphy_name(local->hw.wiphy));
+
+ goto done;
+ }
+
+ local->sw_scanning = false;
+ if (ieee80211_hw_config(local))
+ printk(KERN_DEBUG "%s: failed to restore operational "
+ "channel after scan\n", wiphy_name(local->hw.wiphy));
+
+
+ netif_tx_lock_bh(local->mdev);
+ netif_addr_lock(local->mdev);
+ local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+
+ netif_addr_unlock(local->mdev);
+ netif_tx_unlock_bh(local->mdev);
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ /* Tell AP we're back */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+ ieee80211_send_nullfunc(local, sdata, 0);
+ netif_tx_wake_all_queues(sdata->dev);
+ }
+ } else
+ netif_tx_wake_all_queues(sdata->dev);
+ }
+ rcu_read_unlock();
+
+ done:
+ ieee80211_mlme_notify_scan_completed(local);
+ ieee80211_mesh_notify_scan_completed(local);
+}
+EXPORT_SYMBOL(ieee80211_scan_completed);
+
+
+void ieee80211_scan_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, scan_work.work);
+ struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *chan;
+ int skip;
+ unsigned long next_delay = 0;
+
+ /*
+ * Avoid re-scheduling when the sdata is going away.
+ */
+ if (!netif_running(sdata->dev))
+ return;
+
+ switch (local->scan_state) {
+ case SCAN_SET_CHANNEL:
+ /*
+ * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
+ * after we successfully scanned the last channel of the last
+ * band (and the last band is supported by the hw)
+ */
+ if (local->scan_band < IEEE80211_NUM_BANDS)
+ sband = local->hw.wiphy->bands[local->scan_band];
+ else
+ sband = NULL;
+
+ /*
+ * If we are at an unsupported band and have more bands
+ * left to scan, advance to the next supported one.
+ */
+ while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
+ local->scan_band++;
+ sband = local->hw.wiphy->bands[local->scan_band];
+ local->scan_channel_idx = 0;
+ }
+
+ /* if no more bands/channels left, complete scan */
+ if (!sband || local->scan_channel_idx >= sband->n_channels) {
+ ieee80211_scan_completed(local_to_hw(local));
+ return;
+ }
+ skip = 0;
+ chan = &sband->channels[local->scan_channel_idx];
+
+ if (chan->flags & IEEE80211_CHAN_DISABLED ||
+ (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+ chan->flags & IEEE80211_CHAN_NO_IBSS))
+ skip = 1;
+
+ if (!skip) {
+ local->scan_channel = chan;
+ if (ieee80211_hw_config(local)) {
+ printk(KERN_DEBUG "%s: failed to set freq to "
+ "%d MHz for scan\n", wiphy_name(local->hw.wiphy),
+ chan->center_freq);
+ skip = 1;
+ }
+ }
+
+ /* advance state machine to next channel/band */
+ local->scan_channel_idx++;
+ if (local->scan_channel_idx >= sband->n_channels) {
+ /*
+ * scan_band may end up == IEEE80211_NUM_BANDS, but
+ * we'll catch that case above and complete the scan
+ * if that is the case.
+ */
+ local->scan_band++;
+ local->scan_channel_idx = 0;
+ }
+
+ if (skip)
+ break;
+
+ next_delay = IEEE80211_PROBE_DELAY +
+ usecs_to_jiffies(local->hw.channel_change_time);
+ local->scan_state = SCAN_SEND_PROBE;
+ break;
+ case SCAN_SEND_PROBE:
+ next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+ local->scan_state = SCAN_SET_CHANNEL;
+
+ if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+ break;
+ ieee80211_send_probe_req(sdata, NULL, local->scan_ssid,
+ local->scan_ssid_len);
+ next_delay = IEEE80211_CHANNEL_TIME;
+ break;
+ }
+
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ next_delay);
+}
+
+
+int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = scan_sdata->local;
+ struct ieee80211_sub_if_data *sdata;
+
+ if (ssid_len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+
+ /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
+ * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
+ * BSSID: MACAddress
+ * SSID
+ * ScanType: ACTIVE, PASSIVE
+ * ProbeDelay: delay (in microseconds) to be used prior to transmitting
+ * a Probe frame during active scanning
+ * ChannelList
+ * MinChannelTime (>= ProbeDelay), in TU
+ * MaxChannelTime: (>= MinChannelTime), in TU
+ */
+
+ /* MLME-SCAN.confirm
+ * BSSDescriptionSet
+ * ResultCode: SUCCESS, INVALID_PARAMETERS
+ */
+
+ if (local->sw_scanning || local->hw_scanning) {
+ if (local->scan_sdata == scan_sdata)
+ return 0;
+ return -EBUSY;
+ }
+
+ if (local->ops->hw_scan) {
+ int rc;
+
+ local->hw_scanning = true;
+ rc = local->ops->hw_scan(local_to_hw(local), ssid, ssid_len);
+ if (rc) {
+ local->hw_scanning = false;
+ return rc;
+ }
+ local->scan_sdata = scan_sdata;
+ return 0;
+ }
+
+ local->sw_scanning = true;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+ netif_tx_stop_all_queues(sdata->dev);
+ ieee80211_send_nullfunc(local, sdata, 1);
+ }
+ } else
+ netif_tx_stop_all_queues(sdata->dev);
+ }
+ rcu_read_unlock();
+
+ if (ssid) {
+ local->scan_ssid_len = ssid_len;
+ memcpy(local->scan_ssid, ssid, ssid_len);
+ } else
+ local->scan_ssid_len = 0;
+ local->scan_state = SCAN_SET_CHANNEL;
+ local->scan_channel_idx = 0;
+ local->scan_band = IEEE80211_BAND_2GHZ;
+ local->scan_sdata = scan_sdata;
+
+ netif_addr_lock_bh(local->mdev);
+ local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+ netif_addr_unlock_bh(local->mdev);
+
+ /* TODO: start scan as soon as all nullfunc frames are ACKed */
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ IEEE80211_CHANNEL_TIME);
+
+ return 0;
+}
+
+
+int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_sta *ifsta;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return ieee80211_start_scan(sdata, ssid, ssid_len);
+
+ /*
+ * STA has a state machine that might need to defer scanning
+ * while it's trying to associate/authenticate, therefore we
+ * queue it up to the state machine in that case.
+ */
+
+ if (local->sw_scanning || local->hw_scanning) {
+ if (local->scan_sdata == sdata)
+ return 0;
+ return -EBUSY;
+ }
+
+ ifsta = &sdata->u.sta;
+
+ ifsta->scan_ssid_len = ssid_len;
+ if (ssid_len)
+ memcpy(ifsta->scan_ssid, ssid, ssid_len);
+ set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+
+ return 0;
+}
+
+
+static void ieee80211_scan_add_ies(struct iw_request_info *info,
+ struct ieee80211_bss *bss,
+ char **current_ev, char *end_buf)
+{
+ u8 *pos, *end, *next;
+ struct iw_event iwe;
+
+ if (bss == NULL || bss->ies == NULL)
+ return;
+
+ /*
+ * If needed, fragment the IEs buffer (at IE boundaries) into short
+ * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
+ */
+ pos = bss->ies;
+ end = pos + bss->ies_len;
+
+ while (end - pos > IW_GENERIC_IE_MAX) {
+ next = pos + 2 + pos[1];
+ while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
+ next = next + 2 + next[1];
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = next - pos;
+ *current_ev = iwe_stream_add_point(info, *current_ev,
+ end_buf, &iwe, pos);
+
+ pos = next;
+ }
+
+ if (end > pos) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = end - pos;
+ *current_ev = iwe_stream_add_point(info, *current_ev,
+ end_buf, &iwe, pos);
+ }
+}
+
+
+static char *
+ieee80211_scan_result(struct ieee80211_local *local,
+ struct iw_request_info *info,
+ struct ieee80211_bss *bss,
+ char *current_ev, char *end_buf)
+{
+ struct iw_event iwe;
+ char *buf;
+
+ if (time_after(jiffies,
+ bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
+ return current_ev;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWAP;
+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+ current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+ IW_EV_ADDR_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWESSID;
+ if (bss_mesh_cfg(bss)) {
+ iwe.u.data.length = bss_mesh_id_len(bss);
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+ &iwe, bss_mesh_id(bss));
+ } else {
+ iwe.u.data.length = bss->ssid_len;
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+ &iwe, bss->ssid);
+ }
+
+ if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
+ || bss_mesh_cfg(bss)) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWMODE;
+ if (bss_mesh_cfg(bss))
+ iwe.u.mode = IW_MODE_MESH;
+ else if (bss->capability & WLAN_CAPABILITY_ESS)
+ iwe.u.mode = IW_MODE_MASTER;
+ else
+ iwe.u.mode = IW_MODE_ADHOC;
+ current_ev = iwe_stream_add_event(info, current_ev, end_buf,
+ &iwe, IW_EV_UINT_LEN);
+ }
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
+ iwe.u.freq.e = 0;
+ current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = bss->freq;
+ iwe.u.freq.e = 6;
+ current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVQUAL;
+ iwe.u.qual.qual = bss->qual;
+ iwe.u.qual.level = bss->signal;
+ iwe.u.qual.noise = bss->noise;
+ iwe.u.qual.updated = local->wstats_flags;
+ current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+ IW_EV_QUAL_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWENCODE;
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+ else
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ iwe.u.data.length = 0;
+ current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+ &iwe, "");
+
+ ieee80211_scan_add_ies(info, bss, &current_ev, end_buf);
+
+ if (bss->supp_rates_len > 0) {
+ /* display all supported rates in readable format */
+ char *p = current_ev + iwe_stream_lcp_len(info);
+ int i;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWRATE;
+ /* Those two flags are ignored... */
+ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+ for (i = 0; i < bss->supp_rates_len; i++) {
+ iwe.u.bitrate.value = ((bss->supp_rates[i] &
+ 0x7f) * 500000);
+ p = iwe_stream_add_value(info, current_ev, p,
+ end_buf, &iwe, IW_EV_PARAM_LEN);
+ }
+ current_ev = p;
+ }
+
+ buf = kmalloc(30, GFP_ATOMIC);
+ if (buf) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+ &iwe, buf);
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, " Last beacon: %dms ago",
+ jiffies_to_msecs(jiffies - bss->last_update));
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf, &iwe, buf);
+ kfree(buf);
+ }
+
+ if (bss_mesh_cfg(bss)) {
+ u8 *cfg = bss_mesh_cfg(bss);
+ buf = kmalloc(50, GFP_ATOMIC);
+ if (buf) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "Mesh network (version %d)", cfg[0]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Path Selection Protocol ID: "
+ "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
+ cfg[4]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Path Selection Metric ID: "
+ "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
+ cfg[8]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Congestion Control Mode ID: "
+ "0x%02X%02X%02X%02X", cfg[9], cfg[10],
+ cfg[11], cfg[12]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Channel Precedence: "
+ "0x%02X%02X%02X%02X", cfg[13], cfg[14],
+ cfg[15], cfg[16]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ kfree(buf);
+ }
+ }
+
+ return current_ev;
+}
+
+
+int ieee80211_scan_results(struct ieee80211_local *local,
+ struct iw_request_info *info,
+ char *buf, size_t len)
+{
+ char *current_ev = buf;
+ char *end_buf = buf + len;
+ struct ieee80211_bss *bss;
+
+ spin_lock_bh(&local->bss_lock);
+ list_for_each_entry(bss, &local->bss_list, list) {
+ if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
+ spin_unlock_bh(&local->bss_lock);
+ return -E2BIG;
+ }
+ current_ev = ieee80211_scan_result(local, info, bss,
+ current_ev, end_buf);
+ }
+ spin_unlock_bh(&local->bss_lock);
+ return current_ev - buf;
+}
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
new file mode 100644
index 00000000000..f72bad636d8
--- /dev/null
+++ b/net/mac80211/spectmgmt.c
@@ -0,0 +1,86 @@
+/*
+ * spectrum management
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007-2008, Intel Corporation
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "wme.h"
+
+static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_msrment_ie *request_ie,
+ const u8 *da, const u8 *bssid,
+ u8 dialog_token)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *msr_report;
+
+ skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
+ sizeof(struct ieee80211_msrment_ie));
+
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer for "
+ "measurement report frame\n", sdata->dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24);
+ memset(msr_report, 0, 24);
+ memcpy(msr_report->da, da, ETH_ALEN);
+ memcpy(msr_report->sa, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(msr_report->bssid, bssid, ETH_ALEN);
+ msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement));
+ msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+ msr_report->u.action.u.measurement.action_code =
+ WLAN_ACTION_SPCT_MSR_RPRT;
+ msr_report->u.action.u.measurement.dialog_token = dialog_token;
+
+ msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT;
+ msr_report->u.action.u.measurement.length =
+ sizeof(struct ieee80211_msrment_ie);
+
+ memset(&msr_report->u.action.u.measurement.msr_elem, 0,
+ sizeof(struct ieee80211_msrment_ie));
+ msr_report->u.action.u.measurement.msr_elem.token = request_ie->token;
+ msr_report->u.action.u.measurement.msr_elem.mode |=
+ IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
+ msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
+
+ ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ /*
+ * Ignoring measurement request is spec violation.
+ * Mandatory measurements must be reported optional
+ * measurements might be refused or reported incapable
+ * For now just refuse
+ * TODO: Answer basic measurement as unmeasured
+ */
+ ieee80211_send_refuse_measurement_request(sdata,
+ &mgmt->u.action.u.measurement.msr_elem,
+ mgmt->sa, mgmt->bssid,
+ mgmt->u.action.u.measurement.dialog_token);
+}
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f2ba653b9d6..7fef8ea1f5e 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -73,11 +73,11 @@ static int sta_info_hash_del(struct ieee80211_local *local,
{
struct sta_info *s;
- s = local->sta_hash[STA_HASH(sta->addr)];
+ s = local->sta_hash[STA_HASH(sta->sta.addr)];
if (!s)
return -ENOENT;
if (s == sta) {
- rcu_assign_pointer(local->sta_hash[STA_HASH(sta->addr)],
+ rcu_assign_pointer(local->sta_hash[STA_HASH(sta->sta.addr)],
s->hnext);
return 0;
}
@@ -93,26 +93,19 @@ static int sta_info_hash_del(struct ieee80211_local *local,
}
/* protected by RCU */
-static struct sta_info *__sta_info_find(struct ieee80211_local *local,
- u8 *addr)
+struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr)
{
struct sta_info *sta;
sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
while (sta) {
- if (compare_ether_addr(sta->addr, addr) == 0)
+ if (compare_ether_addr(sta->sta.addr, addr) == 0)
break;
sta = rcu_dereference(sta->hnext);
}
return sta;
}
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
-{
- return __sta_info_find(local, addr);
-}
-EXPORT_SYMBOL(sta_info_get);
-
struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
struct net_device *dev)
{
@@ -146,12 +139,12 @@ static void __sta_info_free(struct ieee80211_local *local,
{
DECLARE_MAC_BUF(mbuf);
- rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
+ rate_control_free_sta(sta);
rate_control_put(sta->rate_ctrl);
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Destroyed STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->addr));
+ wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->sta.addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
kfree(sta);
@@ -219,8 +212,8 @@ void sta_info_destroy(struct sta_info *sta)
static void sta_info_hash_add(struct ieee80211_local *local,
struct sta_info *sta)
{
- sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
- rcu_assign_pointer(local->sta_hash[STA_HASH(sta->addr)], sta);
+ sta->hnext = local->sta_hash[STA_HASH(sta->sta.addr)];
+ rcu_assign_pointer(local->sta_hash[STA_HASH(sta->sta.addr)], sta);
}
struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
@@ -231,20 +224,20 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
int i;
DECLARE_MAC_BUF(mbuf);
- sta = kzalloc(sizeof(*sta), gfp);
+ sta = kzalloc(sizeof(*sta) + local->hw.sta_data_size, gfp);
if (!sta)
return NULL;
spin_lock_init(&sta->lock);
spin_lock_init(&sta->flaglock);
- memcpy(sta->addr, addr, ETH_ALEN);
+ memcpy(sta->sta.addr, addr, ETH_ALEN);
sta->local = local;
sta->sdata = sdata;
sta->rate_ctrl = rate_control_get(local->rate_ctrl);
sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl,
- gfp);
+ &sta->sta, gfp);
if (!sta->rate_ctrl_priv) {
rate_control_put(sta->rate_ctrl);
kfree(sta);
@@ -271,7 +264,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Allocated STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->addr));
+ wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->sta.addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
#ifdef CONFIG_MAC80211_MESH
@@ -300,15 +293,15 @@ int sta_info_insert(struct sta_info *sta)
goto out_free;
}
- if (WARN_ON(compare_ether_addr(sta->addr, sdata->dev->dev_addr) == 0 ||
- is_multicast_ether_addr(sta->addr))) {
+ if (WARN_ON(compare_ether_addr(sta->sta.addr, sdata->dev->dev_addr) == 0 ||
+ is_multicast_ether_addr(sta->sta.addr))) {
err = -EINVAL;
goto out_free;
}
spin_lock_irqsave(&local->sta_lock, flags);
/* check if STA exists already */
- if (__sta_info_find(local, sta->addr)) {
+ if (sta_info_get(local, sta->sta.addr)) {
spin_unlock_irqrestore(&local->sta_lock, flags);
err = -EEXIST;
goto out_free;
@@ -319,18 +312,18 @@ int sta_info_insert(struct sta_info *sta)
/* notify driver */
if (local->ops->sta_notify) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
local->ops->sta_notify(local_to_hw(local), &sdata->vif,
- STA_NOTIFY_ADD, sta->addr);
+ STA_NOTIFY_ADD, &sta->sta);
}
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Inserted STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
+ wiphy_name(local->hw.wiphy), print_mac(mac, sta->sta.addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
spin_unlock_irqrestore(&local->sta_lock, flags);
@@ -379,11 +372,12 @@ static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
{
BUG_ON(!bss);
- __bss_tim_set(bss, sta->aid);
+ __bss_tim_set(bss, sta->sta.aid);
if (sta->local->ops->set_tim) {
sta->local->tim_in_locked_section = true;
- sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1);
+ sta->local->ops->set_tim(local_to_hw(sta->local),
+ &sta->sta, true);
sta->local->tim_in_locked_section = false;
}
}
@@ -404,11 +398,12 @@ static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
{
BUG_ON(!bss);
- __bss_tim_clear(bss, sta->aid);
+ __bss_tim_clear(bss, sta->sta.aid);
if (sta->local->ops->set_tim) {
sta->local->tim_in_locked_section = true;
- sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0);
+ sta->local->ops->set_tim(local_to_hw(sta->local),
+ &sta->sta, false);
sta->local->tim_in_locked_section = false;
}
}
@@ -424,7 +419,7 @@ void sta_info_clear_tim_bit(struct sta_info *sta)
spin_unlock_irqrestore(&sta->local->sta_lock, flags);
}
-void __sta_info_unlink(struct sta_info **sta)
+static void __sta_info_unlink(struct sta_info **sta)
{
struct ieee80211_local *local = (*sta)->local;
struct ieee80211_sub_if_data *sdata = (*sta)->sdata;
@@ -456,13 +451,13 @@ void __sta_info_unlink(struct sta_info **sta)
local->num_sta--;
if (local->ops->sta_notify) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
local->ops->sta_notify(local_to_hw(local), &sdata->vif,
- STA_NOTIFY_REMOVE, (*sta)->addr);
+ STA_NOTIFY_REMOVE, &(*sta)->sta);
}
if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -474,7 +469,7 @@ void __sta_info_unlink(struct sta_info **sta)
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Removed STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mbuf, (*sta)->addr));
+ wiphy_name(local->hw.wiphy), print_mac(mbuf, (*sta)->sta.addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
/*
@@ -570,7 +565,7 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
local->total_ps_buffered--;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "Buffered frame expired (STA "
- "%s)\n", print_mac(mac, sta->addr));
+ "%s)\n", print_mac(mac, sta->sta.addr));
#endif
dev_kfree_skb(skb);
@@ -640,7 +635,12 @@ static void sta_info_debugfs_add_work(struct work_struct *work)
spin_lock_irqsave(&local->sta_lock, flags);
list_for_each_entry(tmp, &local->sta_list, list) {
- if (!tmp->debugfs.dir) {
+ /*
+ * debugfs.add_has_run will be set by
+ * ieee80211_sta_debugfs_add regardless
+ * of what else it does.
+ */
+ if (!tmp->debugfs.add_has_run) {
sta = tmp;
__sta_info_pin(sta);
break;
@@ -802,3 +802,40 @@ void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata)
schedule_work(&local->sta_flush_work);
spin_unlock_irqrestore(&local->sta_lock, flags);
}
+
+void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
+ unsigned long exp_time)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta, *tmp;
+ LIST_HEAD(tmp_list);
+ DECLARE_MAC_BUF(mac);
+ unsigned long flags;
+
+ spin_lock_irqsave(&local->sta_lock, flags);
+ list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
+ if (time_after(jiffies, sta->last_rx + exp_time)) {
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
+ sdata->dev->name, print_mac(mac, sta->sta.addr));
+#endif
+ __sta_info_unlink(&sta);
+ if (sta)
+ list_add(&sta->list, &tmp_list);
+ }
+ spin_unlock_irqrestore(&local->sta_lock, flags);
+
+ list_for_each_entry_safe(sta, tmp, &tmp_list, list)
+ sta_info_destroy(sta);
+}
+
+struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
+ const u8 *addr)
+{
+ struct sta_info *sta = sta_info_get(hw_to_local(hw), addr);
+
+ if (!sta)
+ return NULL;
+ return &sta->sta;
+}
+EXPORT_SYMBOL(ieee80211_find_sta);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 109db787ccb..168a39a298b 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -167,8 +167,6 @@ struct sta_ampdu_mlme {
* @lock: used for locking all fields that require locking, see comments
* in the header file.
* @flaglock: spinlock for flags accesses
- * @ht_info: HT capabilities of this STA
- * @supp_rates: Bitmap of supported rates (per band)
* @addr: MAC address of this STA
* @aid: STA's unique AID (1..2007, 0 = not assigned yet),
* only used in AP (and IBSS?) mode
@@ -191,20 +189,15 @@ struct sta_ampdu_mlme {
* @last_qual: qual of last received frame from this STA
* @last_noise: noise of last received frame from this STA
* @last_seq_ctrl: last received seq/frag number from this STA (per RX queue)
- * @wme_rx_queue: TBD
* @tx_filtered_count: TBD
* @tx_retry_failed: TBD
* @tx_retry_count: TBD
- * @tx_num_consecutive_failures: TBD
- * @tx_num_mpdu_ok: TBD
- * @tx_num_mpdu_fail: TBD
* @fail_avg: moving percentage of failed MSDUs
* @tx_packets: number of RX/TX MSDUs
* @tx_bytes: TBD
* @tx_fragments: number of transmitted MPDUs
- * @txrate_idx: TBD
- * @last_txrate_idx: TBD
- * @wme_tx_queue: TBD
+ * @last_txrate_idx: Index of the last used transmit rate
+ * @tid_seq: TBD
* @ampdu_mlme: TBD
* @timer_to_tid: identity mapping to ID timers
* @tid_to_tx_q: map tid to tx queue
@@ -217,6 +210,7 @@ struct sta_ampdu_mlme {
* @plink_timeout: TBD
* @plink_timer: TBD
* @debugfs: debug filesystem info
+ * @sta: station information we share with the driver
*/
struct sta_info {
/* General information, mostly static */
@@ -229,10 +223,7 @@ struct sta_info {
void *rate_ctrl_priv;
spinlock_t lock;
spinlock_t flaglock;
- struct ieee80211_ht_info ht_info;
- u64 supp_rates[IEEE80211_NUM_BANDS];
- u8 addr[ETH_ALEN];
- u16 aid;
+
u16 listen_interval;
/*
@@ -265,17 +256,10 @@ struct sta_info {
int last_qual;
int last_noise;
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
-#endif
/* Updated from TX status path only, no locking requirements */
unsigned long tx_filtered_count;
unsigned long tx_retry_failed, tx_retry_count;
- /* TODO: update in generic code not rate control? */
- u32 tx_num_consecutive_failures;
- u32 tx_num_mpdu_ok;
- u32 tx_num_mpdu_fail;
/* moving percentage of failed MSDUs */
unsigned int fail_avg;
@@ -283,12 +267,8 @@ struct sta_info {
unsigned long tx_packets;
unsigned long tx_bytes;
unsigned long tx_fragments;
- int txrate_idx;
- int last_txrate_idx;
+ unsigned int last_txrate_idx;
u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif
/*
* Aggregation information, locked with lock.
@@ -319,13 +299,13 @@ struct sta_info {
struct dentry *num_ps_buf_frames;
struct dentry *inactive_ms;
struct dentry *last_seq_ctrl;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *wme_rx_queue;
- struct dentry *wme_tx_queue;
-#endif
struct dentry *agg_status;
+ bool add_has_run;
} debugfs;
#endif
+
+ /* keep last! */
+ struct ieee80211_sta sta;
};
static inline enum plink_state sta_plink_state(struct sta_info *sta)
@@ -425,7 +405,7 @@ static inline u32 get_sta_flags(struct sta_info *sta)
/*
* Get a STA info, must have be under RCU read lock.
*/
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr);
+struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr);
/*
* Get STA info by index, BROKEN!
*/
@@ -451,7 +431,6 @@ int sta_info_insert(struct sta_info *sta);
* has already unlinked it.
*/
void sta_info_unlink(struct sta_info **sta);
-void __sta_info_unlink(struct sta_info **sta);
void sta_info_destroy(struct sta_info *sta);
void sta_info_set_tim_bit(struct sta_info *sta);
@@ -463,5 +442,7 @@ void sta_info_stop(struct ieee80211_local *local);
int sta_info_flush(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
+void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
+ unsigned long exp_time);
#endif /* STA_INFO_H */
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 995f7af3d25..34b32bc8f60 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -304,7 +304,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
u8 bcast[ETH_ALEN] =
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
- u8 *sta_addr = key->sta->addr;
+ u8 *sta_addr = key->sta->sta.addr;
if (is_multicast_ether_addr(ra))
sta_addr = bcast;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4788f7b91f4..1460537faf3 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -38,43 +38,6 @@
/* misc utils */
-#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- unsigned int hdrlen;
- DECLARE_MAC_BUF(mac);
-
- printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
- if (skb->len < 4) {
- printk("\n");
- return;
- }
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
- if (hdrlen > skb->len)
- hdrlen = skb->len;
- if (hdrlen >= 4)
- printk(" FC=0x%04x DUR=0x%04x",
- le16_to_cpu(hdr->frame_control), le16_to_cpu(hdr->duration_id));
- if (hdrlen >= 10)
- printk(" A1=%s", print_mac(mac, hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=%s", print_mac(mac, hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=%s", print_mac(mac, hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=%s", print_mac(mac, hdr->addr4));
- printk("\n");
-}
-#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
-}
-#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-
static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
int next_frag_len)
{
@@ -82,6 +45,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
struct ieee80211_rate *txrate;
struct ieee80211_local *local = tx->local;
struct ieee80211_supported_band *sband;
+ struct ieee80211_hdr *hdr;
sband = local->hw.wiphy->bands[tx->channel->band];
txrate = &sband->bitrates[tx->rate_idx];
@@ -107,10 +71,10 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
* at the highest possible rate belonging to the PHY rates in the
* BSSBasicRateSet
*/
-
- if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
+ hdr = (struct ieee80211_hdr *)tx->skb->data;
+ if (ieee80211_is_ctl(hdr->frame_control)) {
/* TODO: These control frames are not currently sent by
- * 80211.o, but should they be implemented, this function
+ * mac80211, but should they be implemented, this function
* needs to be updated to support duration field calculation.
*
* RTS: time needed to transmit pending data/mgmt frame plus
@@ -152,7 +116,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
if (r->bitrate > txrate->bitrate)
break;
- if (tx->sdata->basic_rates & BIT(i))
+ if (tx->sdata->bss_conf.basic_rates & BIT(i))
rate = r->bitrate;
switch (sband->band) {
@@ -201,11 +165,10 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
return cpu_to_le16(dur);
}
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
+static int inline is_ieee80211_device(struct ieee80211_local *local,
+ struct net_device *dev)
{
- return (wdev_priv(dev->ieee80211_ptr) ==
- wdev_priv(master->ieee80211_ptr));
+ return local == wdev_priv(dev->ieee80211_ptr);
}
/* tx handlers */
@@ -213,21 +176,19 @@ static int inline is_ieee80211_device(struct net_device *dev,
static ieee80211_tx_result debug_noinline
ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
{
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
u32 sta_flags;
if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED))
return TX_CONTINUE;
- if (unlikely(tx->local->sta_sw_scanning) &&
- ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
+ if (unlikely(tx->local->sw_scanning) &&
+ !ieee80211_is_probe_req(hdr->frame_control))
return TX_DROP;
- if (tx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+ if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
return TX_CONTINUE;
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
@@ -237,8 +198,8 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (likely(tx->flags & IEEE80211_TX_UNICAST)) {
if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+ tx->sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+ ieee80211_is_data(hdr->frame_control))) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "%s: dropped data frame to not "
@@ -249,9 +210,9 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
return TX_DROP;
}
} else {
- if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ if (unlikely(ieee80211_is_data(hdr->frame_control) &&
tx->local->num_sta == 0 &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) {
+ tx->sdata->vif.type != NL80211_IFTYPE_ADHOC)) {
/*
* No associated STAs - no need to send multicast
* frames.
@@ -282,7 +243,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
struct ieee80211_if_ap *ap;
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
continue;
ap = &sdata->u.ap;
skb = skb_dequeue(&ap->ps_bc_buf);
@@ -315,6 +276,7 @@ static ieee80211_tx_result
ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
/*
* broadcast/multicast frame
@@ -329,7 +291,7 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
return TX_CONTINUE;
/* no buffering for ordered frames */
- if (tx->fc & IEEE80211_FCTL_ORDER)
+ if (ieee80211_has_order(hdr->frame_control))
return TX_CONTINUE;
/* no stations in PS mode */
@@ -367,12 +329,11 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
{
struct sta_info *sta = tx->sta;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
u32 staflags;
DECLARE_MAC_BUF(mac);
- if (unlikely(!sta ||
- ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
+ if (unlikely(!sta || ieee80211_is_probe_resp(hdr->frame_control)))
return TX_CONTINUE;
staflags = get_sta_flags(sta);
@@ -382,7 +343,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
"before %d)\n",
- print_mac(mac, sta->addr), sta->aid,
+ print_mac(mac, sta->sta.addr), sta->sta.aid,
skb_queue_len(&sta->ps_tx_buf));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
@@ -393,7 +354,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: STA %s TX "
"buffer full - dropping oldest frame\n",
- tx->dev->name, print_mac(mac, sta->addr));
+ tx->dev->name, print_mac(mac, sta->sta.addr));
}
#endif
dev_kfree_skb(old);
@@ -412,7 +373,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
else if (unlikely(test_sta_flags(sta, WLAN_STA_PS))) {
printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll "
"set -> send frame\n", tx->dev->name,
- print_mac(mac, sta->addr));
+ print_mac(mac, sta->sta.addr));
}
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
clear_sta_flags(sta, WLAN_STA_PSPOLL);
@@ -437,7 +398,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
{
struct ieee80211_key *key;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
- u16 fc = tx->fc;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
if (unlikely(tx->skb->do_not_encrypt))
tx->key = NULL;
@@ -454,22 +415,16 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
tx->key = NULL;
if (tx->key) {
- u16 ftype, stype;
-
tx->key->tx_rx_count++;
/* TODO: add threshold stuff again */
switch (tx->key->conf.alg) {
case ALG_WEP:
- ftype = fc & IEEE80211_FCTL_FTYPE;
- stype = fc & IEEE80211_FCTL_STYPE;
-
- if (ftype == IEEE80211_FTYPE_MGMT &&
- stype == IEEE80211_STYPE_AUTH)
+ if (ieee80211_is_auth(hdr->frame_control))
break;
case ALG_TKIP:
case ALG_CCMP:
- if (!WLAN_FC_DATA_PRESENT(fc))
+ if (!ieee80211_is_data_present(hdr->frame_control))
tx->key = NULL;
break;
}
@@ -491,20 +446,24 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (likely(tx->rate_idx < 0)) {
- rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
+ rate_control_get_rate(tx->sdata, sband, tx->sta,
+ tx->skb, &rsel);
+ if (tx->sta)
+ tx->sta->last_txrate_idx = rsel.rate_idx;
tx->rate_idx = rsel.rate_idx;
if (unlikely(rsel.probe_idx >= 0)) {
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
- info->control.alt_retry_rate_idx = tx->rate_idx;
+ info->control.retries[0].rate_idx = tx->rate_idx;
+ info->control.retries[0].limit = tx->local->hw.max_altrate_tries;
tx->rate_idx = rsel.probe_idx;
- } else
- info->control.alt_retry_rate_idx = -1;
+ } else if (info->control.retries[0].limit == 0)
+ info->control.retries[0].rate_idx = -1;
if (unlikely(tx->rate_idx < 0))
return TX_DROP;
} else
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
if (tx->sdata->bss_conf.use_cts_prot &&
(tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
@@ -535,7 +494,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (tx->sta)
- info->control.aid = tx->sta->aid;
+ info->control.sta = &tx->sta->sta;
if (!info->control.retry_limit) {
if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -563,7 +522,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
* frames.
* TODO: The last fragment could still use multiple retry
* rates. */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
}
/* Use CTS protection for unicast frames sent using extended rates if
@@ -593,7 +552,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
int idx;
/* Do not use multiple retry rates when using RTS/CTS */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
/* Use min(data rate, max base rate) as CTS/RTS rate */
rate = &sband->bitrates[tx->rate_idx];
@@ -601,7 +560,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
for (idx = 0; idx < sband->n_bitrates; idx++) {
if (sband->bitrates[idx].bitrate > rate->bitrate)
continue;
- if (tx->sdata->basic_rates & BIT(idx) &&
+ if (tx->sdata->bss_conf.basic_rates & BIT(idx) &&
(baserate < 0 ||
(sband->bitrates[baserate].bitrate
< sband->bitrates[idx].bitrate)))
@@ -615,7 +574,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
}
if (tx->sta)
- info->control.aid = tx->sta->aid;
+ info->control.sta = &tx->sta->sta;
return TX_CONTINUE;
}
@@ -629,7 +588,14 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
u8 *qc;
int tid;
- /* only for injected frames */
+ /*
+ * Packet injection may want to control the sequence
+ * number, if we have no matching interface then we
+ * neither assign one ourselves nor ask the driver to.
+ */
+ if (unlikely(!info->control.vif))
+ return TX_CONTINUE;
+
if (unlikely(ieee80211_is_ctl(hdr->frame_control)))
return TX_CONTINUE;
@@ -854,7 +820,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
sband = tx->local->hw.wiphy->bands[tx->channel->band];
skb->do_not_encrypt = 1;
- info->flags |= IEEE80211_TX_CTL_INJECTED;
tx->flags &= ~IEEE80211_TX_FRAGMENTED;
/*
@@ -986,7 +951,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
+ if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
return TX_DROP;
@@ -1000,7 +965,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
hdr = (struct ieee80211_hdr *) skb->data;
tx->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
if (is_multicast_ether_addr(hdr->addr1)) {
tx->flags &= ~IEEE80211_TX_UNICAST;
@@ -1025,7 +989,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
else if (test_and_clear_sta_flags(tx->sta, WLAN_STA_CLEAR_PS_FILT))
info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
- hdrlen = ieee80211_get_hdrlen(tx->fc);
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
tx->ethertype = (pos[0] << 8) | pos[1];
@@ -1038,14 +1002,14 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
/*
* NB: @tx is uninitialised when passed in here
*/
-static int ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev)
+static int ieee80211_tx_prepare(struct ieee80211_local *local,
+ struct ieee80211_tx_data *tx,
+ struct sk_buff *skb)
{
struct net_device *dev;
dev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
+ if (unlikely(dev && !is_ieee80211_device(local, dev))) {
dev_put(dev);
dev = NULL;
}
@@ -1068,8 +1032,6 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
return IEEE80211_TX_AGAIN;
info = IEEE80211_SKB_CB(skb);
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver", skb);
ret = local->ops->tx(local_to_hw(local), skb);
if (ret)
return IEEE80211_TX_AGAIN;
@@ -1099,9 +1061,6 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
}
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver",
- tx->extra_frag[i]);
ret = local->ops->tx(local_to_hw(local),
tx->extra_frag[i]);
if (ret)
@@ -1297,20 +1256,26 @@ static int ieee80211_skb_resize(struct ieee80211_local *local,
return 0;
}
-int ieee80211_master_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
+int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct net_device *odev = NULL;
struct ieee80211_sub_if_data *osdata;
int headroom;
bool may_encrypt;
+ enum {
+ NOT_MONITOR,
+ FOUND_SDATA,
+ UNKNOWN_ADDRESS,
+ } monitor_iface = NOT_MONITOR;
int ret;
if (skb->iif)
odev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
+ if (unlikely(odev && !is_ieee80211_device(local, odev))) {
dev_put(odev);
odev = NULL;
}
@@ -1331,15 +1296,55 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
if (ieee80211_vif_is_mesh(&osdata->vif) &&
ieee80211_is_data(hdr->frame_control)) {
- if (ieee80211_is_data(hdr->frame_control)) {
- if (is_multicast_ether_addr(hdr->addr3))
- memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
- else
- if (mesh_nexthop_lookup(skb, odev))
- return 0;
- if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
- IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.sta,
- fwded_frames);
+ if (is_multicast_ether_addr(hdr->addr3))
+ memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
+ else
+ if (mesh_nexthop_lookup(skb, osdata))
+ return 0;
+ if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
+ IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
+ fwded_frames);
+ } else if (unlikely(osdata->vif.type == NL80211_IFTYPE_MONITOR)) {
+ struct ieee80211_sub_if_data *sdata;
+ int hdrlen;
+ u16 len_rthdr;
+
+ info->flags |= IEEE80211_TX_CTL_INJECTED;
+ monitor_iface = UNKNOWN_ADDRESS;
+
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
+ hdr = (struct ieee80211_hdr *)skb->data + len_rthdr;
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
+
+ /* check the header is complete in the frame */
+ if (likely(skb->len >= len_rthdr + hdrlen)) {
+ /*
+ * We process outgoing injected frames that have a
+ * local address we handle as though they are our
+ * own frames.
+ * This code here isn't entirely correct, the local
+ * MAC address is not necessarily enough to find
+ * the interface to use; for that proper VLAN/WDS
+ * support we will need a different mechanism.
+ */
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces,
+ list) {
+ if (!netif_running(sdata->dev))
+ continue;
+ if (compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr2)) {
+ dev_hold(sdata->dev);
+ dev_put(odev);
+ osdata = sdata;
+ odev = osdata->dev;
+ skb->iif = sdata->dev->ifindex;
+ monitor_iface = FOUND_SDATA;
+ break;
+ }
+ }
+ rcu_read_unlock();
}
}
@@ -1357,7 +1362,12 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
return 0;
}
- info->control.vif = &osdata->vif;
+ if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ osdata = container_of(osdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
+ if (likely(monitor_iface != UNKNOWN_ADDRESS))
+ info->control.vif = &osdata->vif;
ret = ieee80211_tx(odev, skb);
dev_put(odev);
@@ -1437,8 +1447,8 @@ fail:
int ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
int ret = 1, head_need;
u16 ethertype, hdrlen, meshhdrlen = 0;
__le16 fc;
@@ -1450,7 +1460,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
struct sta_info *sta;
u32 sta_flags = 0;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(skb->len < ETH_HLEN)) {
ret = 0;
goto fail;
@@ -1465,8 +1474,8 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
/* DA BSSID SA */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1474,7 +1483,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
hdrlen = 24;
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
/* RA TA DA SA */
memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
@@ -1484,24 +1493,56 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
hdrlen = 30;
break;
#ifdef CONFIG_MAC80211_MESH
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_MESH_POINT:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
- /* RA TA DA SA */
- memset(hdr.addr1, 0, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- if (!sdata->u.sta.mshcfg.dot11MeshTTL) {
+ if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
/* Do not send frames with mesh_ttl == 0 */
- sdata->u.sta.mshstats.dropped_frames_ttl++;
+ sdata->u.mesh.mshstats.dropped_frames_ttl++;
ret = 0;
goto fail;
}
- meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata);
+ memset(&mesh_hdr, 0, sizeof(mesh_hdr));
+
+ if (compare_ether_addr(dev->dev_addr,
+ skb->data + ETH_ALEN) == 0) {
+ /* RA TA DA SA */
+ memset(hdr.addr1, 0, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata);
+ } else {
+ /* packet from other interface */
+ struct mesh_path *mppath;
+
+ memset(hdr.addr1, 0, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr4, dev->dev_addr, ETH_ALEN);
+
+ if (is_multicast_ether_addr(skb->data))
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ else {
+ rcu_read_lock();
+ mppath = mpp_path_lookup(skb->data, sdata);
+ if (mppath)
+ memcpy(hdr.addr3, mppath->mpp, ETH_ALEN);
+ else
+ memset(hdr.addr3, 0xff, ETH_ALEN);
+ rcu_read_unlock();
+ }
+
+ mesh_hdr.flags |= MESH_FLAGS_AE_A5_A6;
+ mesh_hdr.ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
+ put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &mesh_hdr.seqnum);
+ memcpy(mesh_hdr.eaddr1, skb->data, ETH_ALEN);
+ memcpy(mesh_hdr.eaddr2, skb->data + ETH_ALEN, ETH_ALEN);
+ sdata->u.mesh.mesh_seqnum++;
+ meshhdrlen = 18;
+ }
hdrlen = 30;
break;
#endif
- case IEEE80211_IF_TYPE_STA:
+ case NL80211_IFTYPE_STATION:
fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
/* BSSID SA DA */
memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
@@ -1509,7 +1550,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
memcpy(hdr.addr3, skb->data, ETH_ALEN);
hdrlen = 24;
break;
- case IEEE80211_IF_TYPE_IBSS:
+ case NL80211_IFTYPE_ADHOC:
/* DA SA BSSID */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
@@ -1588,19 +1629,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
nh_pos -= skip_header_bytes;
h_pos -= skip_header_bytes;
- /* TODO: implement support for fragments so that there is no need to
- * reallocate and copy payload; it might be enough to support one
- * extra fragment that would be copied in the beginning of the frame
- * data.. anyway, it would be nice to include this into skb structure
- * somehow
- *
- * There are few options for this:
- * use skb->cb as an extra space for 802.11 header
- * allocate new buffer if not enough headroom
- * make sure that there is enough headroom in every skb by increasing
- * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
- * alloc_skb() (net/core/skbuff.c)
- */
head_need = hdrlen + encaps_len + meshhdrlen - skb_headroom(skb);
/*
@@ -1823,10 +1851,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct rate_selection rsel;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
- struct ieee80211_mgmt *mgmt;
- int *num_beacons;
enum ieee80211_band band = local->hw.conf.channel->band;
- u8 *pos;
sband = local->hw.wiphy->bands[band];
@@ -1835,7 +1860,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
sdata = vif_to_sdata(vif);
bdev = sdata->dev;
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
ap = &sdata->u.ap;
beacon = rcu_dereference(ap->beacon);
if (ap && beacon) {
@@ -1873,11 +1898,9 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
if (beacon->tail)
memcpy(skb_put(skb, beacon->tail_len),
beacon->tail, beacon->tail_len);
-
- num_beacons = &ap->num_beacons;
} else
goto out;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
struct ieee80211_hdr *hdr;
ifsta = &sdata->u.sta;
@@ -1889,11 +1912,13 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
goto out;
hdr = (struct ieee80211_hdr *) skb->data;
- hdr->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_BEACON);
+ hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_BEACON);
- num_beacons = &ifsta->num_beacons;
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos;
+
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + 400);
if (!skb)
@@ -1916,9 +1941,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
*pos++ = WLAN_EID_SSID;
*pos++ = 0x0;
- mesh_mgmt_ies_add(skb, sdata->dev);
-
- num_beacons = &sdata->u.sta.num_beacons;
+ mesh_mgmt_ies_add(skb, sdata);
} else {
WARN_ON(1);
goto out;
@@ -1929,7 +1952,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
skb->do_not_encrypt = 1;
info->band = band;
- rate_control_get_rate(local->mdev, sband, skb, &rsel);
+ rate_control_get_rate(sdata, sband, NULL, skb, &rsel);
if (unlikely(rsel.rate_idx < 0)) {
if (net_ratelimit()) {
@@ -1955,7 +1978,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
info->control.retry_limit = 1;
- (*num_beacons)++;
out:
rcu_read_unlock();
return skb;
@@ -2017,7 +2039,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
rcu_read_lock();
beacon = rcu_dereference(bss->beacon);
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon || !beacon->head)
+ if (sdata->vif.type != NL80211_IFTYPE_AP || !beacon || !beacon->head)
goto out;
if (bss->dtim_count != 0)
@@ -2039,7 +2061,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
- if (!ieee80211_tx_prepare(&tx, skb, local->mdev))
+ if (!ieee80211_tx_prepare(local, &tx, skb))
break;
dev_kfree_skb_any(skb);
}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0d463c80c40..cee4884b9d0 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -43,7 +43,7 @@ const unsigned char bridge_tunnel_header[] __aligned(2) =
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
- enum ieee80211_if_types type)
+ enum nl80211_iftype type)
{
__le16 fc = hdr->frame_control;
@@ -77,10 +77,10 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
if (ieee80211_is_back_req(fc)) {
switch (type) {
- case IEEE80211_IF_TYPE_STA:
+ case NL80211_IFTYPE_STATION:
return hdr->addr2;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
return hdr->addr1;
default:
break; /* fall through to the return */
@@ -91,45 +91,6 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
return NULL;
}
-int ieee80211_get_hdrlen(u16 fc)
-{
- int hdrlen = 24;
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
- hdrlen = 30; /* Addr4 */
- /*
- * The QoS Control field is two bytes and its presence is
- * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
- * hdrlen if that bit is set.
- * This works by masking out the bit and shifting it to
- * bit position 1 so the result has the value 0 or 2.
- */
- hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
- >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
- break;
- case IEEE80211_FTYPE_CTL:
- /*
- * ACK and CTS are 10 bytes, all others 16. To see how
- * to get this condition consider
- * subtype mask: 0b0000000011110000 (0x00F0)
- * ACK subtype: 0b0000000011010000 (0x00D0)
- * CTS subtype: 0b0000000011000000 (0x00C0)
- * bits that matter: ^^^ (0x00E0)
- * value of those: 0b0000000011000000 (0x00C0)
- */
- if ((fc & 0xE0) == 0xC0)
- hdrlen = 10;
- else
- hdrlen = 16;
- break;
- }
-
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen);
-
unsigned int ieee80211_hdrlen(__le16 fc)
{
unsigned int hdrlen = 24;
@@ -270,16 +231,21 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
struct ieee80211_rate *rate)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_sub_if_data *sdata;
u16 dur;
int erp;
+ bool short_preamble = false;
erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
+ if (vif) {
+ sdata = vif_to_sdata(vif);
+ short_preamble = sdata->bss_conf.use_short_preamble;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
+ }
dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, erp,
- sdata->bss_conf.use_short_preamble);
+ short_preamble);
return cpu_to_le16(dur);
}
@@ -291,7 +257,7 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_sub_if_data *sdata;
bool short_preamble;
int erp;
u16 dur;
@@ -299,13 +265,17 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- short_preamble = sdata->bss_conf.use_short_preamble;
+ short_preamble = false;
rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
+ if (vif) {
+ sdata = vif_to_sdata(vif);
+ short_preamble = sdata->bss_conf.use_short_preamble;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
+ }
/* CTS duration */
dur = ieee80211_frame_duration(local, 10, rate->bitrate,
@@ -328,7 +298,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_sub_if_data *sdata;
bool short_preamble;
int erp;
u16 dur;
@@ -336,12 +306,16 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- short_preamble = sdata->bss_conf.use_short_preamble;
+ short_preamble = false;
rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
+ if (vif) {
+ sdata = vif_to_sdata(vif);
+ short_preamble = sdata->bss_conf.use_short_preamble;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
+ }
/* Data frame duration */
dur = ieee80211_frame_duration(local, frame_len, rate->bitrate,
@@ -386,6 +360,13 @@ void ieee80211_stop_queues(struct ieee80211_hw *hw)
}
EXPORT_SYMBOL(ieee80211_stop_queues);
+int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ return __netif_subqueue_stopped(local->mdev, queue);
+}
+EXPORT_SYMBOL(ieee80211_queue_stopped);
+
void ieee80211_wake_queues(struct ieee80211_hw *hw)
{
int i;
@@ -408,15 +389,16 @@ void ieee80211_iterate_active_interfaces(
list_for_each_entry(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_INVALID:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_VLAN:
+ case __NL80211_IFTYPE_AFTER_LAST:
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_AP_VLAN:
continue;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_MESH_POINT:
break;
}
if (netif_running(sdata->dev))
@@ -441,15 +423,16 @@ void ieee80211_iterate_active_interfaces_atomic(
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_INVALID:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_VLAN:
+ case __NL80211_IFTYPE_AFTER_LAST:
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_AP_VLAN:
continue;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_MESH_POINT:
break;
}
if (netif_running(sdata->dev))
@@ -460,3 +443,243 @@ void ieee80211_iterate_active_interfaces_atomic(
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
+
+void ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems)
+{
+ size_t left = len;
+ u8 *pos = start;
+
+ memset(elems, 0, sizeof(*elems));
+ elems->ie_start = start;
+ elems->total_len = len;
+
+ while (left >= 2) {
+ u8 id, elen;
+
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if (elen > left)
+ return;
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ elems->ssid = pos;
+ elems->ssid_len = elen;
+ break;
+ case WLAN_EID_SUPP_RATES:
+ elems->supp_rates = pos;
+ elems->supp_rates_len = elen;
+ break;
+ case WLAN_EID_FH_PARAMS:
+ elems->fh_params = pos;
+ elems->fh_params_len = elen;
+ break;
+ case WLAN_EID_DS_PARAMS:
+ elems->ds_params = pos;
+ elems->ds_params_len = elen;
+ break;
+ case WLAN_EID_CF_PARAMS:
+ elems->cf_params = pos;
+ elems->cf_params_len = elen;
+ break;
+ case WLAN_EID_TIM:
+ elems->tim = pos;
+ elems->tim_len = elen;
+ break;
+ case WLAN_EID_IBSS_PARAMS:
+ elems->ibss_params = pos;
+ elems->ibss_params_len = elen;
+ break;
+ case WLAN_EID_CHALLENGE:
+ elems->challenge = pos;
+ elems->challenge_len = elen;
+ break;
+ case WLAN_EID_WPA:
+ if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+ pos[2] == 0xf2) {
+ /* Microsoft OUI (00:50:F2) */
+ if (pos[3] == 1) {
+ /* OUI Type 1 - WPA IE */
+ elems->wpa = pos;
+ elems->wpa_len = elen;
+ } else if (elen >= 5 && pos[3] == 2) {
+ if (pos[4] == 0) {
+ elems->wmm_info = pos;
+ elems->wmm_info_len = elen;
+ } else if (pos[4] == 1) {
+ elems->wmm_param = pos;
+ elems->wmm_param_len = elen;
+ }
+ }
+ }
+ break;
+ case WLAN_EID_RSN:
+ elems->rsn = pos;
+ elems->rsn_len = elen;
+ break;
+ case WLAN_EID_ERP_INFO:
+ elems->erp_info = pos;
+ elems->erp_info_len = elen;
+ break;
+ case WLAN_EID_EXT_SUPP_RATES:
+ elems->ext_supp_rates = pos;
+ elems->ext_supp_rates_len = elen;
+ break;
+ case WLAN_EID_HT_CAPABILITY:
+ if (elen >= sizeof(struct ieee80211_ht_cap))
+ elems->ht_cap_elem = (void *)pos;
+ break;
+ case WLAN_EID_HT_EXTRA_INFO:
+ if (elen >= sizeof(struct ieee80211_ht_addt_info))
+ elems->ht_info_elem = (void *)pos;
+ break;
+ case WLAN_EID_MESH_ID:
+ elems->mesh_id = pos;
+ elems->mesh_id_len = elen;
+ break;
+ case WLAN_EID_MESH_CONFIG:
+ elems->mesh_config = pos;
+ elems->mesh_config_len = elen;
+ break;
+ case WLAN_EID_PEER_LINK:
+ elems->peer_link = pos;
+ elems->peer_link_len = elen;
+ break;
+ case WLAN_EID_PREQ:
+ elems->preq = pos;
+ elems->preq_len = elen;
+ break;
+ case WLAN_EID_PREP:
+ elems->prep = pos;
+ elems->prep_len = elen;
+ break;
+ case WLAN_EID_PERR:
+ elems->perr = pos;
+ elems->perr_len = elen;
+ break;
+ case WLAN_EID_CHANNEL_SWITCH:
+ elems->ch_switch_elem = pos;
+ elems->ch_switch_elem_len = elen;
+ break;
+ case WLAN_EID_QUIET:
+ if (!elems->quiet_elem) {
+ elems->quiet_elem = pos;
+ elems->quiet_elem_len = elen;
+ }
+ elems->num_of_quiet_elem++;
+ break;
+ case WLAN_EID_COUNTRY:
+ elems->country_elem = pos;
+ elems->country_elem_len = elen;
+ break;
+ case WLAN_EID_PWR_CONSTRAINT:
+ elems->pwr_constr_elem = pos;
+ elems->pwr_constr_elem_len = elen;
+ break;
+ default:
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+}
+
+void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_tx_queue_params qparam;
+ int i;
+
+ if (!local->ops->conf_tx)
+ return;
+
+ memset(&qparam, 0, sizeof(qparam));
+
+ qparam.aifs = 2;
+
+ if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+ !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
+ qparam.cw_min = 31;
+ else
+ qparam.cw_min = 15;
+
+ qparam.cw_max = 1023;
+ qparam.txop = 0;
+
+ for (i = 0; i < local_to_hw(local)->queues; i++)
+ local->ops->conf_tx(local_to_hw(local), i, &qparam);
+}
+
+void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ int encrypt)
+{
+ skb->dev = sdata->local->mdev;
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, 0);
+ skb_set_transport_header(skb, 0);
+
+ skb->iif = sdata->dev->ifindex;
+ skb->do_not_encrypt = !encrypt;
+
+ dev_queue_xmit(skb);
+}
+
+int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
+{
+ int ret = -EINVAL;
+ struct ieee80211_channel *chan;
+ struct ieee80211_local *local = sdata->local;
+
+ chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
+
+ if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+ chan->flags & IEEE80211_CHAN_NO_IBSS) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
+ "%d MHz\n", sdata->dev->name, chan->center_freq);
+ return ret;
+ }
+ local->oper_channel = chan;
+
+ if (local->sw_scanning || local->hw_scanning)
+ ret = 0;
+ else
+ ret = ieee80211_hw_config(local);
+
+ rate_control_clear(local);
+ }
+
+ return ret;
+}
+
+u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
+ enum ieee80211_band band)
+{
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *bitrates;
+ u64 mandatory_rates;
+ enum ieee80211_rate_flags mandatory_flag;
+ int i;
+
+ sband = local->hw.wiphy->bands[band];
+ if (!sband) {
+ WARN_ON(1);
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ }
+
+ if (band == IEEE80211_BAND_2GHZ)
+ mandatory_flag = IEEE80211_RATE_MANDATORY_B;
+ else
+ mandatory_flag = IEEE80211_RATE_MANDATORY_A;
+
+ bitrates = sband->bitrates;
+ mandatory_rates = 0;
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (bitrates[i].flags & mandatory_flag)
+ mandatory_rates |= BIT(i);
+ return mandatory_rates;
+}
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 5c2bf0a3d4d..f0e2d3ecb5c 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -228,11 +228,10 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
return -1;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
- if (skb->len < 8 + hdrlen)
+ if (skb->len < hdrlen + WEP_IV_LEN + WEP_ICV_LEN)
return -1;
- len = skb->len - hdrlen - 8;
+ len = skb->len - hdrlen - WEP_IV_LEN - WEP_ICV_LEN;
keyidx = skb->data[hdrlen + 3] >> 6;
@@ -292,9 +291,10 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
ieee80211_rx_result
ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
{
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+
+ if (!ieee80211_is_data(hdr->frame_control) &&
+ !ieee80211_is_auth(hdr->frame_control))
return RX_CONTINUE;
if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
@@ -303,7 +303,7 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
} else if (!(rx->status->flag & RX_FLAG_IV_STRIPPED)) {
ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
/* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
+ skb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN);
}
return RX_CONTINUE;
@@ -313,9 +313,6 @@ static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- info->control.iv_len = WEP_IV_LEN;
- info->control.icv_len = WEP_ICV_LEN;
-
if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
return -1;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 34fa8ed1e78..742f811ca41 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -27,22 +27,19 @@
#include "aes_ccm.h"
-static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
+static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta_addr,
int idx, int alg, int remove,
int set_tx_key, const u8 *_key,
size_t key_len)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
struct ieee80211_key *key;
- struct ieee80211_sub_if_data *sdata;
int err;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
- dev->name, idx);
+ sdata->dev->name, idx);
return -EINVAL;
}
@@ -125,13 +122,13 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
return -EOPNOTSUPP;
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
if (ret)
return ret;
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ ieee80211_sta_req_auth(sdata, &sdata->u.sta);
return 0;
}
@@ -276,21 +273,21 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
int type;
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
return -EOPNOTSUPP;
switch (*mode) {
case IW_MODE_INFRA:
- type = IEEE80211_IF_TYPE_STA;
+ type = NL80211_IFTYPE_STATION;
break;
case IW_MODE_ADHOC:
- type = IEEE80211_IF_TYPE_IBSS;
+ type = NL80211_IFTYPE_ADHOC;
break;
case IW_MODE_REPEAT:
- type = IEEE80211_IF_TYPE_WDS;
+ type = NL80211_IFTYPE_WDS;
break;
case IW_MODE_MONITOR:
- type = IEEE80211_IF_TYPE_MNTR;
+ type = NL80211_IFTYPE_MONITOR;
break;
default:
return -EINVAL;
@@ -308,22 +305,22 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
+ case NL80211_IFTYPE_AP:
*mode = IW_MODE_MASTER;
break;
- case IEEE80211_IF_TYPE_STA:
+ case NL80211_IFTYPE_STATION:
*mode = IW_MODE_INFRA;
break;
- case IEEE80211_IF_TYPE_IBSS:
+ case NL80211_IFTYPE_ADHOC:
*mode = IW_MODE_ADHOC;
break;
- case IEEE80211_IF_TYPE_MNTR:
+ case NL80211_IFTYPE_MONITOR:
*mode = IW_MODE_MONITOR;
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
*mode = IW_MODE_REPEAT;
break;
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP_VLAN:
*mode = IW_MODE_SECOND; /* FIXME */
break;
default:
@@ -333,60 +330,31 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
return 0;
}
-int ieee80211_set_freq(struct net_device *dev, int freqMHz)
-{
- int ret = -EINVAL;
- struct ieee80211_channel *chan;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
-
- if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- chan->flags & IEEE80211_CHAN_NO_IBSS) {
- printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
- "%d MHz\n", dev->name, chan->center_freq);
- return ret;
- }
- local->oper_channel = chan;
-
- if (local->sta_sw_scanning || local->sta_hw_scanning)
- ret = 0;
- else
- ret = ieee80211_hw_config(local);
-
- rate_control_clear(local);
- }
-
- return ret;
-}
-
static int ieee80211_ioctl_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
if (freq->e == 0) {
if (freq->m < 0) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
sdata->u.sta.flags |=
IEEE80211_STA_AUTO_CHANNEL_SEL;
return 0;
} else
- return ieee80211_set_freq(dev,
+ return ieee80211_set_freq(sdata,
ieee80211_channel_to_frequency(freq->m));
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div > 0)
- return ieee80211_set_freq(dev, freq->m / div);
+ return ieee80211_set_freq(sdata, freq->m / div);
else
return -EINVAL;
}
@@ -418,8 +386,8 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
len--;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
int ret;
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
if (len > IEEE80211_MAX_SSID_LEN)
@@ -432,14 +400,14 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
else
sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
- ret = ieee80211_sta_set_ssid(dev, ssid, len);
+ ret = ieee80211_sta_set_ssid(sdata, ssid, len);
if (ret)
return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ ieee80211_sta_req_auth(sdata, &sdata->u.sta);
return 0;
}
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
memcpy(sdata->u.ap.ssid, ssid, len);
memset(sdata->u.ap.ssid + len, 0,
IEEE80211_MAX_SSID_LEN - len);
@@ -458,9 +426,9 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int res = ieee80211_sta_get_ssid(dev, ssid, &len);
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
if (res == 0) {
data->length = len;
data->flags = 1;
@@ -469,7 +437,7 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
return res;
}
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
len = sdata->u.ap.ssid_len;
if (len > IW_ESSID_MAX_SIZE)
len = IW_ESSID_MAX_SIZE;
@@ -489,8 +457,8 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
int ret;
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
@@ -504,12 +472,12 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
else
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
+ ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
if (ret)
return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ ieee80211_sta_req_auth(sdata, &sdata->u.sta);
return 0;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
+ } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
/*
* If it is necessary to update the WDS peer address
* while the interface is running, then we need to do
@@ -537,10 +505,10 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- if (sdata->u.sta.state == IEEE80211_ASSOCIATED ||
- sdata->u.sta.state == IEEE80211_IBSS_JOINED) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ if (sdata->u.sta.state == IEEE80211_STA_MLME_ASSOCIATED ||
+ sdata->u.sta.state == IEEE80211_STA_MLME_IBSS_JOINED) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
return 0;
@@ -548,7 +516,7 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
memset(&ap_addr->sa_data, 0, ETH_ALEN);
return 0;
}
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
+ } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
return 0;
@@ -570,10 +538,10 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
if (!netif_running(dev))
return -ENETDOWN;
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
- sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+ sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+ sdata->vif.type != NL80211_IFTYPE_AP)
return -EOPNOTSUPP;
/* if SSID was specified explicitly then use that */
@@ -584,7 +552,7 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
ssid_len = req->essid_len;
}
- return ieee80211_sta_req_scan(dev, ssid, ssid_len);
+ return ieee80211_request_scan(sdata, ssid, ssid_len);
}
@@ -594,11 +562,14 @@ static int ieee80211_ioctl_giwscan(struct net_device *dev,
{
int res;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (local->sta_sw_scanning || local->sta_hw_scanning)
+ if (local->sw_scanning || local->hw_scanning)
return -EAGAIN;
- res = ieee80211_sta_scan_results(dev, info, extra, data->length);
+ res = ieee80211_scan_results(local, info, extra, data->length);
if (res >= 0) {
data->length = res;
return 0;
@@ -656,7 +627,7 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
@@ -665,8 +636,8 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
sta = sta_info_get(local, sdata->u.sta.bssid);
- if (sta && sta->txrate_idx < sband->n_bitrates)
- rate->value = sband->bitrates[sta->txrate_idx].bitrate;
+ if (sta && sta->last_txrate_idx < sband->n_bitrates)
+ rate->value = sband->bitrates[sta->last_txrate_idx].bitrate;
else
rate->value = 0;
@@ -804,7 +775,7 @@ static int ieee80211_ioctl_siwfrag(struct net_device *dev,
* configure it here */
if (local->ops->set_frag_threshold)
- local->ops->set_frag_threshold(
+ return local->ops->set_frag_threshold(
local_to_hw(local),
local->fragmentation_threshold);
@@ -887,17 +858,17 @@ static int ieee80211_ioctl_siwmlme(struct net_device *dev,
struct iw_mlme *mlme = (struct iw_mlme *) extra;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
return -EINVAL;
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
/* TODO: mlme->addr.sa_data */
- return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
+ return ieee80211_sta_deauthenticate(sdata, mlme->reason_code);
case IW_MLME_DISASSOC:
/* TODO: mlme->addr.sa_data */
- return ieee80211_sta_disassociate(dev, mlme->reason_code);
+ return ieee80211_sta_disassociate(sdata, mlme->reason_code);
default:
return -EOPNOTSUPP;
}
@@ -938,7 +909,7 @@ static int ieee80211_ioctl_siwencode(struct net_device *dev,
}
return ieee80211_set_encryption(
- dev, bcaddr,
+ sdata, bcaddr,
idx, alg, remove,
!sdata->default_key,
keybuf, erq->length);
@@ -983,7 +954,7 @@ static int ieee80211_ioctl_giwencode(struct net_device *dev,
erq->length = sdata->keys[idx]->conf.keylen;
erq->flags |= IW_ENCODE_ENABLED;
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
switch (ifsta->auth_alg) {
case WLAN_AUTH_OPEN:
@@ -1057,7 +1028,7 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
sdata->drop_unencrypted = !!data->value;
break;
case IW_AUTH_PRIVACY_INVOKED:
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
ret = -EINVAL;
else {
sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
@@ -1072,8 +1043,8 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
}
break;
case IW_AUTH_80211_AUTH_ALG:
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC)
sdata->u.sta.auth_algs = data->value;
else
ret = -EOPNOTSUPP;
@@ -1095,8 +1066,8 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
rcu_read_lock();
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC)
sta = sta_info_get(local, sdata->u.sta.bssid);
if (!sta) {
wstats->discard.fragment = 0;
@@ -1126,8 +1097,8 @@ static int ieee80211_ioctl_giwauth(struct net_device *dev,
switch (data->flags & IW_AUTH_INDEX) {
case IW_AUTH_80211_AUTH_ALG:
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC)
data->value = sdata->u.sta.auth_algs;
else
ret = -EOPNOTSUPP;
@@ -1184,7 +1155,7 @@ static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
} else
idx--;
- return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
+ return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
remove,
ext->ext_flags &
IW_ENCODE_EXT_SET_TX_KEY,
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 4310e2f6566..139b5f267b3 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -39,7 +39,7 @@ static unsigned int classify_1d(struct sk_buff *skb)
return skb->priority - 256;
switch (skb->protocol) {
- case __constant_htons(ETH_P_IP):
+ case htons(ETH_P_IP):
dscp = ip_hdr(skb)->tos & 0xfc;
break;
@@ -47,8 +47,6 @@ static unsigned int classify_1d(struct sk_buff *skb)
return 0;
}
- if (dscp & 0x1c)
- return 0;
return dscp >> 5;
}
@@ -75,9 +73,8 @@ static int wme_downgrade_ac(struct sk_buff *skb)
/* Indicate which queue to use. */
-static u16 classify80211(struct sk_buff *skb, struct net_device *dev)
+static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
if (!ieee80211_is_data(hdr->frame_control)) {
@@ -115,14 +112,15 @@ static u16 classify80211(struct sk_buff *skb, struct net_device *dev)
u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
{
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct sta_info *sta;
u16 queue;
u8 tid;
- queue = classify80211(skb, dev);
+ queue = classify80211(local, skb);
if (unlikely(queue >= local->hw.queues))
queue = local->hw.queues - 1;
@@ -212,7 +210,7 @@ int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "allocated aggregation queue"
" %d tid %d addr %s pool=0x%lX\n",
- i, tid, print_mac(mac, sta->addr),
+ i, tid, print_mac(mac, sta->sta.addr),
local->queue_pool[0]);
}
#endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index 04de28c071a..bc62f28a4d3 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -1,5 +1,4 @@
/*
- * IEEE 802.11 driver (80211.o) - QoS datatypes
* Copyright 2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
@@ -14,8 +13,6 @@
#include <linux/netdevice.h>
#include "ieee80211_i.h"
-#define QOS_CONTROL_LEN 2
-
#define QOS_CONTROL_ACK_POLICY_NORMAL 0
#define QOS_CONTROL_ACK_POLICY_NOACK 1
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 2f33df0dccc..6db649480e8 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -127,7 +127,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_UNUSABLE;
- mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
+ mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx,
(void *) skb->data);
return RX_DROP_UNUSABLE;
}
@@ -152,9 +152,6 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
int len, tail;
u8 *pos;
- info->control.icv_len = TKIP_ICV_LEN;
- info->control.iv_len = TKIP_IV_LEN;
-
if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
!(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
/* hwaccel - with no need for preallocated room for IV/ICV */
@@ -256,7 +253,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
key, skb->data + hdrlen,
- skb->len - hdrlen, rx->sta->addr,
+ skb->len - hdrlen, rx->sta->sta.addr,
hdr->addr1, hwaccel, rx->queue,
&rx->tkip_iv32,
&rx->tkip_iv16);
@@ -374,9 +371,6 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
u8 *pos, *pn;
int i;
- info->control.icv_len = CCMP_MIC_LEN;
- info->control.iv_len = CCMP_HDR_LEN;
-
if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
!(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
/* hwaccel - with no need for preallocated room for CCMP "