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/*
* Intel Wireless Multicomm 3200 WiFi driver
*
* Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com>
* Samuel Ortiz <samuel.ortiz@intel.com>
* Zhu Yi <yi.zhu@intel.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <linux/if_arp.h>
#include <linux/etherdevice.h>
#include <net/cfg80211.h>
#include <net/iw_handler.h>
#include "iwm.h"
#include "umac.h"
#include "commands.h"
#include "debug.h"
static struct iw_statistics *iwm_get_wireless_stats(struct net_device *dev)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
struct iw_statistics *wstats = &iwm->wstats;
if (!test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
memset(wstats, 0, sizeof(struct iw_statistics));
wstats->qual.updated = IW_QUAL_ALL_INVALID;
}
return wstats;
}
static int iwm_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
if (freq->flags == IW_FREQ_AUTO)
return 0;
/* frequency/channel can only be set in IBSS mode */
if (iwm->conf.mode != UMAC_MODE_IBSS)
return -EOPNOTSUPP;
return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
}
static int iwm_wext_giwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
if (iwm->conf.mode == UMAC_MODE_IBSS)
return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
freq->e = 0;
freq->m = iwm->channel;
return 0;
}
static int iwm_wext_siwap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
int ret;
IWM_DBG_WEXT(iwm, DBG, "Set BSSID: %pM\n", ap_addr->sa_data);
if (iwm->conf.mode == UMAC_MODE_IBSS)
return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
if (!test_bit(IWM_STATUS_READY, &iwm->status))
return -EIO;
if (is_zero_ether_addr(ap_addr->sa_data) ||
is_broadcast_ether_addr(ap_addr->sa_data)) {
IWM_DBG_WEXT(iwm, DBG, "clear mandatory bssid %pM\n",
iwm->umac_profile->bssid[0]);
memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN);
iwm->umac_profile->bss_num = 0;
} else {
IWM_DBG_WEXT(iwm, DBG, "add mandatory bssid %pM\n",
ap_addr->sa_data);
memcpy(&iwm->umac_profile->bssid[0], ap_addr->sa_data,
ETH_ALEN);
iwm->umac_profile->bss_num = 1;
}
if (iwm->umac_profile_active) {
int i;
if (!memcmp(&iwm->umac_profile->bssid[0], iwm->bssid, ETH_ALEN))
return 0;
/*
* If we're clearing the BSSID, and we're associated,
* we have to clear the keys as they're no longer valid.
*/
if (is_zero_ether_addr(ap_addr->sa_data)) {
for (i = 0; i < IWM_NUM_KEYS; i++)
iwm->keys[i].key_len = 0;
}
ret = iwm_invalidate_mlme_profile(iwm);
if (ret < 0) {
IWM_ERR(iwm, "Couldn't invalidate profile\n");
return ret;
}
}
if (iwm->umac_profile->ssid.ssid_len)
return iwm_send_mlme_profile(iwm);
return 0;
}
static int iwm_wext_giwap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
switch (iwm->conf.mode) {
case UMAC_MODE_IBSS:
return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
case UMAC_MODE_BSS:
if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, iwm->bssid, ETH_ALEN);
} else
memset(&ap_addr->sa_data, 0, ETH_ALEN);
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int iwm_wext_siwessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *ssid)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
size_t len = data->length;
int ret;
IWM_DBG_WEXT(iwm, DBG, "Set ESSID: >%s<\n", ssid);
if (iwm->conf.mode == UMAC_MODE_IBSS)
return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
if (!test_bit(IWM_STATUS_READY, &iwm->status))
return -EIO;
if (len > 0 && ssid[len - 1] == '\0')
len--;
if (iwm->umac_profile_active) {
if (iwm->umac_profile->ssid.ssid_len == len &&
!memcmp(iwm->umac_profile->ssid.ssid, ssid, len))
return 0;
ret = iwm_invalidate_mlme_profile(iwm);
if (ret < 0) {
IWM_ERR(iwm, "Couldn't invalidate profile\n");
return ret;
}
}
iwm->umac_profile->ssid.ssid_len = len;
memcpy(iwm->umac_profile->ssid.ssid, ssid, len);
return iwm_send_mlme_profile(iwm);
}
static int iwm_wext_giwessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *ssid)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
if (iwm->conf.mode == UMAC_MODE_IBSS)
return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
if (!test_bit(IWM_STATUS_READY, &iwm->status))
return -EIO;
data->length = iwm->umac_profile->ssid.ssid_len;
if (data->length) {
memcpy(ssid, iwm->umac_profile->ssid.ssid, data->length);
data->flags = 1;
} else
data->flags = 0;
return 0;
}
static int iwm_wext_giwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
rate->value = iwm->rate * 1000000;
return 0;
}
static int iwm_set_wpa_version(struct iwm_priv *iwm, u8 wpa_version)
{
if (wpa_version & IW_AUTH_WPA_VERSION_WPA2)
iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK;
else if (wpa_version & IW_AUTH_WPA_VERSION_WPA)
iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WPA_ON_MSK;
else
iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE;
return 0;
}
static int iwm_set_key_mgt(struct iwm_priv *iwm, u8 key_mgt)
{
u8 *auth_type = &iwm->umac_profile->sec.auth_type;
IWM_DBG_WEXT(iwm, DBG, "key_mgt: 0x%x\n", key_mgt);
if (key_mgt == IW_AUTH_KEY_MGMT_802_1X)
*auth_type = UMAC_AUTH_TYPE_8021X;
else if (key_mgt == IW_AUTH_KEY_MGMT_PSK) {
if (iwm->umac_profile->sec.flags &
(UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK))
*auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
else
*auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
} else {
IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt);
return -EINVAL;
}
return 0;
}
static int iwm_set_cipher(struct iwm_priv *iwm, u8 cipher, u8 ucast)
{
u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher :
&iwm->umac_profile->sec.mcast_cipher;
switch (cipher) {
case IW_AUTH_CIPHER_NONE:
*profile_cipher = UMAC_CIPHER_TYPE_NONE;
break;
case IW_AUTH_CIPHER_WEP40:
*profile_cipher = UMAC_CIPHER_TYPE_WEP_40;
break;
case IW_AUTH_CIPHER_TKIP:
*profile_cipher = UMAC_CIPHER_TYPE_TKIP;
break;
case IW_AUTH_CIPHER_CCMP:
*profile_cipher = UMAC_CIPHER_TYPE_CCMP;
break;
case IW_AUTH_CIPHER_WEP104:
*profile_cipher = UMAC_CIPHER_TYPE_WEP_104;
break;
default:
IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher);
return -ENOTSUPP;
}
return 0;
}
static int iwm_set_auth_alg(struct iwm_priv *iwm, u8 auth_alg)
{
u8 *auth_type = &iwm->umac_profile->sec.auth_type;
IWM_DBG_WEXT(iwm, DBG, "auth_alg: 0x%x\n", auth_alg);
switch (auth_alg) {
case IW_AUTH_ALG_OPEN_SYSTEM:
*auth_type = UMAC_AUTH_TYPE_OPEN;
break;
case IW_AUTH_ALG_SHARED_KEY:
if (iwm->umac_profile->sec.flags &
(UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) {
if (*auth_type == UMAC_AUTH_TYPE_8021X)
return -EINVAL;
*auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
} else {
IWM_DBG_WEXT(iwm, DBG, "WEP shared key\n");
*auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
}
break;
case IW_AUTH_ALG_LEAP:
default:
IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", auth_alg);
return -ENOTSUPP;
}
return 0;
}
static int iwm_wext_siwauth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *data, char *extra)
{
struct iwm_priv *iwm = ndev_to_iwm(dev);
int ret;
if ((data->flags) &
(IW_AUTH_WPA_VERSION | IW_AUTH_KEY_MGMT |
IW_AUTH_WPA_ENABLED | IW_AUTH_80211_AUTH_ALG)) {
/* We need to invalidate the current profile */
if (iwm->umac_profile_active) {
ret = iwm_invalidate_mlme_profile(iwm);
if (ret < 0) {
IWM_ERR(iwm, "Couldn't invalidate profile\n");
return ret;
}
}
}
switch (data->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
return iwm_set_wpa_version(iwm, data->value);
break;
case IW_AUTH_CIPHER_PAIRWISE:
return iwm_set_cipher(iwm, data->value, 1);
break;
case IW_AUTH_CIPHER_GROUP:
return iwm_set_cipher(iwm, data->value, 0);
break;
case IW_AUTH_KEY_MGMT:
return iwm_set_key_mgt(iwm, data->value);
break;
case IW_AUTH_80211_AUTH_ALG:
return iwm_set_auth_alg(iwm, data->value);
break;
default:
return -ENOTSUPP;
}
return 0;
}
static int iwm_wext_giwauth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *data, char *extra)
{
return 0;
}
static const iw_handler iwm_handlers[] =
{
(iw_handler) NULL, /* SIOCSIWCOMMIT */
(iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) iwm_wext_siwfreq, /* SIOCSIWFREQ */
(iw_handler) iwm_wext_giwfreq, /* SIOCGIWFREQ */
(iw_handler) cfg80211_wext_siwmode, /* SIOCSIWMODE */
(iw_handler) cfg80211_wext_giwmode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
(iw_handler) cfg80211_wext_giwrange, /* SIOCGIWRANGE */
(iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
(iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
(iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
(iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
(iw_handler) NULL, /* SIOCSIWSPY */
(iw_handler) NULL, /* SIOCGIWSPY */
(iw_handler) NULL, /* SIOCSIWTHRSPY */
(iw_handler) NULL, /* SIOCGIWTHRSPY */
(iw_handler) iwm_wext_siwap, /* SIOCSIWAP */
(iw_handler) iwm_wext_giwap, /* SIOCGIWAP */
(iw_handler) NULL, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWAPLIST */
(iw_handler) cfg80211_wext_siwscan, /* SIOCSIWSCAN */
(iw_handler) cfg80211_wext_giwscan, /* SIOCGIWSCAN */
(iw_handler) iwm_wext_siwessid, /* SIOCSIWESSID */
(iw_handler) iwm_wext_giwessid, /* SIOCGIWESSID */
(iw_handler) NULL, /* SIOCSIWNICKN */
(iw_handler) NULL, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* SIOCSIWRATE */
(iw_handler) iwm_wext_giwrate, /* SIOCGIWRATE */
(iw_handler) cfg80211_wext_siwrts, /* SIOCSIWRTS */
(iw_handler) cfg80211_wext_giwrts, /* SIOCGIWRTS */
(iw_handler) cfg80211_wext_siwfrag, /* SIOCSIWFRAG */
(iw_handler) cfg80211_wext_giwfrag, /* SIOCGIWFRAG */
(iw_handler) cfg80211_wext_siwtxpower, /* SIOCSIWTXPOW */
(iw_handler) cfg80211_wext_giwtxpower, /* SIOCGIWTXPOW */
(iw_handler) NULL, /* SIOCSIWRETRY */
(iw_handler) NULL, /* SIOCGIWRETRY */
(iw_handler) cfg80211_wext_siwencode, /* SIOCSIWENCODE */
(iw_handler) cfg80211_wext_giwencode, /* SIOCGIWENCODE */
(iw_handler) cfg80211_wext_siwpower, /* SIOCSIWPOWER */
(iw_handler) cfg80211_wext_giwpower, /* SIOCGIWPOWER */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* SIOCSIWGENIE */
(iw_handler) NULL, /* SIOCGIWGENIE */
(iw_handler) iwm_wext_siwauth, /* SIOCSIWAUTH */
(iw_handler) iwm_wext_giwauth, /* SIOCGIWAUTH */
(iw_handler) cfg80211_wext_siwencodeext, /* SIOCSIWENCODEEXT */
(iw_handler) NULL, /* SIOCGIWENCODEEXT */
(iw_handler) NULL, /* SIOCSIWPMKSA */
(iw_handler) NULL, /* -- hole -- */
};
const struct iw_handler_def iwm_iw_handler_def = {
.num_standard = ARRAY_SIZE(iwm_handlers),
.standard = (iw_handler *) iwm_handlers,
.get_wireless_stats = iwm_get_wireless_stats,
};
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