aboutsummaryrefslogtreecommitdiff
path: root/net/ieee80211/softmac
diff options
context:
space:
mode:
Diffstat (limited to 'net/ieee80211/softmac')
-rw-r--r--net/ieee80211/softmac/Kconfig1
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_assoc.c25
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_event.c40
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_io.c18
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_module.c2
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_scan.c2
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_wx.c37
7 files changed, 102 insertions, 23 deletions
diff --git a/net/ieee80211/softmac/Kconfig b/net/ieee80211/softmac/Kconfig
index 6cd9f3427be..f2a27cc6ecb 100644
--- a/net/ieee80211/softmac/Kconfig
+++ b/net/ieee80211/softmac/Kconfig
@@ -1,6 +1,7 @@
config IEEE80211_SOFTMAC
tristate "Software MAC add-on to the IEEE 802.11 networking stack"
depends on IEEE80211 && EXPERIMENTAL
+ select WIRELESS_EXT
---help---
This option enables the hardware independent software MAC addon
for the IEEE 802.11 networking stack.
diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c
index be61de78dfa..fb79ce7d643 100644
--- a/net/ieee80211/softmac/ieee80211softmac_assoc.c
+++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c
@@ -101,6 +101,7 @@ ieee80211softmac_disassoc(struct ieee80211softmac_device *mac, u16 reason)
/* Do NOT clear bssvalid as that will break ieee80211softmac_assoc_work! */
mac->associated = 0;
mac->associnfo.associating = 0;
+ ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
spin_unlock_irqrestore(&mac->lock, flags);
}
@@ -143,6 +144,12 @@ network_matches_request(struct ieee80211softmac_device *mac, struct ieee80211_ne
if (!we_support_all_basic_rates(mac, net->rates_ex, net->rates_ex_len))
return 0;
+ /* assume that users know what they're doing ...
+ * (note we don't let them select a net we're incompatible with) */
+ if (mac->associnfo.bssfixed) {
+ return !memcmp(mac->associnfo.bssid, net->bssid, ETH_ALEN);
+ }
+
/* if 'ANY' network requested, take any that doesn't have privacy enabled */
if (mac->associnfo.req_essid.len == 0
&& !(net->capability & WLAN_CAPABILITY_PRIVACY))
@@ -175,7 +182,7 @@ ieee80211softmac_assoc_work(void *d)
ieee80211softmac_disassoc(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
/* try to find the requested network in our list, if we found one already */
- if (mac->associnfo.bssvalid)
+ if (mac->associnfo.bssvalid || mac->associnfo.bssfixed)
found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
/* Search the ieee80211 networks for this network if we didn't find it by bssid,
@@ -240,19 +247,25 @@ ieee80211softmac_assoc_work(void *d)
if (ieee80211softmac_start_scan(mac))
dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
return;
- }
- else {
+ } else {
spin_lock_irqsave(&mac->lock, flags);
mac->associnfo.associating = 0;
mac->associated = 0;
spin_unlock_irqrestore(&mac->lock, flags);
dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n");
+ /* reset the retry counter for the next user request since we
+ * break out and don't reschedule ourselves after this point. */
+ mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL);
return;
}
}
-
+
+ /* reset the retry counter for the next user request since we
+ * now found a net and will try to associate to it, but not
+ * schedule this function again. */
+ mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
mac->associnfo.bssvalid = 1;
memcpy(mac->associnfo.bssid, found->bssid, ETH_ALEN);
/* copy the ESSID for displaying it */
@@ -373,6 +386,7 @@ ieee80211softmac_handle_disassoc(struct net_device * dev,
spin_lock_irqsave(&mac->lock, flags);
mac->associnfo.bssvalid = 0;
mac->associated = 0;
+ ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
schedule_work(&mac->associnfo.work);
spin_unlock_irqrestore(&mac->lock, flags);
@@ -391,6 +405,7 @@ ieee80211softmac_handle_reassoc_req(struct net_device * dev,
dprintkl(KERN_INFO PFX "reassoc request from unknown network\n");
return 0;
}
- ieee80211softmac_assoc(mac, network);
+ schedule_work(&mac->associnfo.work);
+
return 0;
}
diff --git a/net/ieee80211/softmac/ieee80211softmac_event.c b/net/ieee80211/softmac/ieee80211softmac_event.c
index 0a52bbda1e4..8cc8f3f0f8e 100644
--- a/net/ieee80211/softmac/ieee80211softmac_event.c
+++ b/net/ieee80211/softmac/ieee80211softmac_event.c
@@ -67,6 +67,7 @@ static char *event_descriptions[IEEE80211SOFTMAC_EVENT_LAST+1] = {
"authenticating failed",
"authenticating timed out",
"associating failed because no suitable network was found",
+ "disassociated",
};
@@ -128,13 +129,42 @@ void
ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_ctx)
{
struct ieee80211softmac_event *eventptr, *tmp;
- union iwreq_data wrqu;
- char *msg;
+ struct ieee80211softmac_network *network;
if (event >= 0) {
- msg = event_descriptions[event];
- wrqu.data.length = strlen(msg);
- wireless_send_event(mac->dev, IWEVCUSTOM, &wrqu, msg);
+ union iwreq_data wrqu;
+ int we_event;
+ char *msg = NULL;
+
+ switch(event) {
+ case IEEE80211SOFTMAC_EVENT_ASSOCIATED:
+ network = (struct ieee80211softmac_network *)event_ctx;
+ wrqu.data.length = 0;
+ wrqu.data.flags = 0;
+ memcpy(wrqu.ap_addr.sa_data, &network->bssid[0], ETH_ALEN);
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ we_event = SIOCGIWAP;
+ break;
+ case IEEE80211SOFTMAC_EVENT_DISASSOCIATED:
+ wrqu.data.length = 0;
+ wrqu.data.flags = 0;
+ memset(&wrqu, '\0', sizeof (union iwreq_data));
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ we_event = SIOCGIWAP;
+ break;
+ case IEEE80211SOFTMAC_EVENT_SCAN_FINISHED:
+ wrqu.data.length = 0;
+ wrqu.data.flags = 0;
+ memset(&wrqu, '\0', sizeof (union iwreq_data));
+ we_event = SIOCGIWSCAN;
+ break;
+ default:
+ msg = event_descriptions[event];
+ wrqu.data.length = strlen(msg);
+ we_event = IWEVCUSTOM;
+ break;
+ }
+ wireless_send_event(mac->dev, we_event, &wrqu, msg);
}
if (!list_empty(&mac->events))
diff --git a/net/ieee80211/softmac/ieee80211softmac_io.c b/net/ieee80211/softmac/ieee80211softmac_io.c
index febc51dbb41..cc6cd56c85b 100644
--- a/net/ieee80211/softmac/ieee80211softmac_io.c
+++ b/net/ieee80211/softmac/ieee80211softmac_io.c
@@ -180,9 +180,21 @@ ieee80211softmac_assoc_req(struct ieee80211_assoc_request **pkt,
ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_ASSOC_REQ, net->bssid, net->bssid);
/* Fill in capability Info */
- (*pkt)->capability = (mac->ieee->iw_mode == IW_MODE_MASTER) || (mac->ieee->iw_mode == IW_MODE_INFRA) ?
- cpu_to_le16(WLAN_CAPABILITY_ESS) :
- cpu_to_le16(WLAN_CAPABILITY_IBSS);
+ switch (mac->ieee->iw_mode) {
+ case IW_MODE_INFRA:
+ (*pkt)->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
+ break;
+ case IW_MODE_ADHOC:
+ (*pkt)->capability = cpu_to_le16(WLAN_CAPABILITY_IBSS);
+ break;
+ case IW_MODE_AUTO:
+ (*pkt)->capability = net->capabilities & (WLAN_CAPABILITY_ESS|WLAN_CAPABILITY_IBSS);
+ break;
+ default:
+ /* bleh. we don't ever go to these modes */
+ printk(KERN_ERR PFX "invalid iw_mode!\n");
+ break;
+ }
/* Need to add this
(*pkt)->capability |= mac->ieee->short_slot ?
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0;
diff --git a/net/ieee80211/softmac/ieee80211softmac_module.c b/net/ieee80211/softmac/ieee80211softmac_module.c
index 60f06a31f0d..be83bdc1644 100644
--- a/net/ieee80211/softmac/ieee80211softmac_module.c
+++ b/net/ieee80211/softmac/ieee80211softmac_module.c
@@ -45,6 +45,8 @@ struct net_device *alloc_ieee80211softmac(int sizeof_priv)
softmac->ieee->handle_disassoc = ieee80211softmac_handle_disassoc;
softmac->scaninfo = NULL;
+ softmac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
+
/* TODO: initialise all the other callbacks in the ieee struct
* (once they're written)
*/
diff --git a/net/ieee80211/softmac/ieee80211softmac_scan.c b/net/ieee80211/softmac/ieee80211softmac_scan.c
index bb9ab8b45d0..2b9e7edfa3c 100644
--- a/net/ieee80211/softmac/ieee80211softmac_scan.c
+++ b/net/ieee80211/softmac/ieee80211softmac_scan.c
@@ -47,6 +47,7 @@ ieee80211softmac_start_scan(struct ieee80211softmac_device *sm)
sm->scanning = 1;
spin_unlock_irqrestore(&sm->lock, flags);
+ netif_tx_disable(sm->ieee->dev);
ret = sm->start_scan(sm->dev);
if (ret) {
spin_lock_irqsave(&sm->lock, flags);
@@ -239,6 +240,7 @@ void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm)
if (net)
sm->set_channel(sm->dev, net->channel);
}
+ netif_wake_queue(sm->ieee->dev);
ieee80211softmac_call_events(sm, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, NULL);
}
EXPORT_SYMBOL_GPL(ieee80211softmac_scan_finished);
diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c
index b559aa9b550..27edb2b5581 100644
--- a/net/ieee80211/softmac/ieee80211softmac_wx.c
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -27,7 +27,8 @@
#include "ieee80211softmac_priv.h"
#include <net/iw_handler.h>
-
+/* for is_broadcast_ether_addr and is_zero_ether_addr */
+#include <linux/etherdevice.h>
int
ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
@@ -41,13 +42,23 @@ ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);
+/* if we're still scanning, return -EAGAIN so that userspace tools
+ * can get the complete scan results, otherwise return 0. */
int
ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
+ unsigned long flags;
struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+
+ spin_lock_irqsave(&sm->lock, flags);
+ if (sm->scanning) {
+ spin_unlock_irqrestore(&sm->lock, flags);
+ return -EAGAIN;
+ }
+ spin_unlock_irqrestore(&sm->lock, flags);
return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);
@@ -73,7 +84,6 @@ ieee80211softmac_wx_set_essid(struct net_device *net_dev,
sm->associnfo.static_essid = 1;
}
}
- sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
/* set our requested ESSID length.
* If applicable, we have already copied the data in */
@@ -300,8 +310,6 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
char *extra)
{
struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
- static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
- static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
unsigned long flags;
/* sanity check */
@@ -310,10 +318,17 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
}
spin_lock_irqsave(&mac->lock, flags);
- if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
- !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
- schedule_work(&mac->associnfo.work);
- goto out;
+ if (is_broadcast_ether_addr(data->ap_addr.sa_data)) {
+ /* the bssid we have is not to be fixed any longer,
+ * and we should reassociate to the best AP. */
+ mac->associnfo.bssfixed = 0;
+ /* force reassociation */
+ mac->associnfo.bssvalid = 0;
+ if (mac->associated)
+ schedule_work(&mac->associnfo.work);
+ } else if (is_zero_ether_addr(data->ap_addr.sa_data)) {
+ /* the bssid we have is no longer fixed */
+ mac->associnfo.bssfixed = 0;
} else {
if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
if (mac->associnfo.associating || mac->associated) {
@@ -323,12 +338,14 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
} else {
/* copy new value in data->ap_addr.sa_data to bssid */
memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
- }
+ }
+ /* tell the other code that this bssid should be used no matter what */
+ mac->associnfo.bssfixed = 1;
/* queue associate if new bssid or (old one again and not associated) */
schedule_work(&mac->associnfo.work);
}
-out:
+ out:
spin_unlock_irqrestore(&mac->lock, flags);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-24 09:00:50 +0000