2 * cfg80211 wext compat for managed mode.
4 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
8 #include <linux/etherdevice.h>
9 #include <linux/if_arp.h>
10 #include <net/cfg80211.h>
11 #include "wext-compat.h"
14 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
15 struct wireless_dev *wdev)
17 struct cfg80211_cached_keys *ck = NULL;
18 const u8 *prev_bssid = NULL;
21 ASSERT_RDEV_LOCK(rdev);
22 ASSERT_WDEV_LOCK(wdev);
24 if (!netif_running(wdev->netdev))
27 wdev->wext.connect.ie = wdev->wext.ie;
28 wdev->wext.connect.ie_len = wdev->wext.ie_len;
30 if (wdev->wext.keys) {
31 wdev->wext.keys->def = wdev->wext.default_key;
32 wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
33 wdev->wext.connect.privacy = true;
36 if (!wdev->wext.connect.ssid_len)
39 if (wdev->wext.keys) {
40 ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
43 for (i = 0; i < 6; i++)
44 ck->params[i].key = ck->data[i];
47 if (wdev->wext.prev_bssid_valid)
48 prev_bssid = wdev->wext.prev_bssid;
50 err = __cfg80211_connect(rdev, wdev->netdev,
51 &wdev->wext.connect, ck, prev_bssid);
58 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
59 struct iw_request_info *info,
60 struct iw_freq *wextfreq, char *extra)
62 struct wireless_dev *wdev = dev->ieee80211_ptr;
63 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
64 struct ieee80211_channel *chan = NULL;
67 /* call only for station! */
68 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
71 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
76 chan = ieee80211_get_channel(wdev->wiphy, freq);
79 if (chan->flags & IEEE80211_CHAN_DISABLED)
83 cfg80211_lock_rdev(rdev);
84 mutex_lock(&rdev->devlist_mtx);
87 if (wdev->sme_state != CFG80211_SME_IDLE) {
90 if (wdev->wext.connect.channel == chan) {
95 /* if SSID set, we'll try right again, avoid event */
96 if (wdev->wext.connect.ssid_len)
98 err = __cfg80211_disconnect(rdev, dev,
99 WLAN_REASON_DEAUTH_LEAVING, event);
105 wdev->wext.connect.channel = chan;
107 /* SSID is not set, we just want to switch channel */
108 if (chan && !wdev->wext.connect.ssid_len) {
109 err = rdev_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
113 err = cfg80211_mgd_wext_connect(rdev, wdev);
116 mutex_unlock(&rdev->devlist_mtx);
117 cfg80211_unlock_rdev(rdev);
121 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
122 struct iw_request_info *info,
123 struct iw_freq *freq, char *extra)
125 struct wireless_dev *wdev = dev->ieee80211_ptr;
126 struct ieee80211_channel *chan = NULL;
128 /* call only for station! */
129 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
133 if (wdev->current_bss)
134 chan = wdev->current_bss->pub.channel;
135 else if (wdev->wext.connect.channel)
136 chan = wdev->wext.connect.channel;
140 freq->m = chan->center_freq;
145 /* no channel if not joining */
149 int cfg80211_mgd_wext_siwessid(struct net_device *dev,
150 struct iw_request_info *info,
151 struct iw_point *data, char *ssid)
153 struct wireless_dev *wdev = dev->ieee80211_ptr;
154 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
155 size_t len = data->length;
158 /* call only for station! */
159 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
165 /* iwconfig uses nul termination in SSID.. */
166 if (len > 0 && ssid[len - 1] == '\0')
169 cfg80211_lock_rdev(rdev);
170 mutex_lock(&rdev->devlist_mtx);
175 if (wdev->sme_state != CFG80211_SME_IDLE) {
178 if (wdev->wext.connect.ssid && len &&
179 len == wdev->wext.connect.ssid_len &&
180 memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
183 /* if SSID set now, we'll try to connect, avoid event */
186 err = __cfg80211_disconnect(rdev, dev,
187 WLAN_REASON_DEAUTH_LEAVING, event);
192 wdev->wext.prev_bssid_valid = false;
193 wdev->wext.connect.ssid = wdev->wext.ssid;
194 memcpy(wdev->wext.ssid, ssid, len);
195 wdev->wext.connect.ssid_len = len;
197 wdev->wext.connect.crypto.control_port = false;
199 err = cfg80211_mgd_wext_connect(rdev, wdev);
202 mutex_unlock(&rdev->devlist_mtx);
203 cfg80211_unlock_rdev(rdev);
207 int cfg80211_mgd_wext_giwessid(struct net_device *dev,
208 struct iw_request_info *info,
209 struct iw_point *data, char *ssid)
211 struct wireless_dev *wdev = dev->ieee80211_ptr;
213 /* call only for station! */
214 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
220 if (wdev->current_bss) {
221 const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
225 data->length = ie[1];
226 memcpy(ssid, ie + 2, data->length);
228 } else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
230 data->length = wdev->wext.connect.ssid_len;
231 memcpy(ssid, wdev->wext.connect.ssid, data->length);
238 int cfg80211_mgd_wext_siwap(struct net_device *dev,
239 struct iw_request_info *info,
240 struct sockaddr *ap_addr, char *extra)
242 struct wireless_dev *wdev = dev->ieee80211_ptr;
243 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
244 u8 *bssid = ap_addr->sa_data;
247 /* call only for station! */
248 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
251 if (ap_addr->sa_family != ARPHRD_ETHER)
255 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
258 cfg80211_lock_rdev(rdev);
259 mutex_lock(&rdev->devlist_mtx);
262 if (wdev->sme_state != CFG80211_SME_IDLE) {
265 if (!bssid && !wdev->wext.connect.bssid)
268 /* fixed already - and no change */
269 if (wdev->wext.connect.bssid && bssid &&
270 compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
273 err = __cfg80211_disconnect(rdev, dev,
274 WLAN_REASON_DEAUTH_LEAVING, false);
280 memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
281 wdev->wext.connect.bssid = wdev->wext.bssid;
283 wdev->wext.connect.bssid = NULL;
285 err = cfg80211_mgd_wext_connect(rdev, wdev);
288 mutex_unlock(&rdev->devlist_mtx);
289 cfg80211_unlock_rdev(rdev);
293 int cfg80211_mgd_wext_giwap(struct net_device *dev,
294 struct iw_request_info *info,
295 struct sockaddr *ap_addr, char *extra)
297 struct wireless_dev *wdev = dev->ieee80211_ptr;
299 /* call only for station! */
300 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
303 ap_addr->sa_family = ARPHRD_ETHER;
306 if (wdev->current_bss)
307 memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
309 memset(ap_addr->sa_data, 0, ETH_ALEN);
315 int cfg80211_wext_siwgenie(struct net_device *dev,
316 struct iw_request_info *info,
317 struct iw_point *data, char *extra)
319 struct wireless_dev *wdev = dev->ieee80211_ptr;
320 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
322 int ie_len = data->length, err;
324 if (wdev->iftype != NL80211_IFTYPE_STATION)
334 if (wdev->wext.ie_len == ie_len &&
335 memcmp(wdev->wext.ie, ie, ie_len) == 0)
339 ie = kmemdup(extra, ie_len, GFP_KERNEL);
347 kfree(wdev->wext.ie);
349 wdev->wext.ie_len = ie_len;
351 if (wdev->sme_state != CFG80211_SME_IDLE) {
352 err = __cfg80211_disconnect(rdev, dev,
353 WLAN_REASON_DEAUTH_LEAVING, false);
358 /* userspace better not think we'll reconnect */
364 EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
366 int cfg80211_wext_siwmlme(struct net_device *dev,
367 struct iw_request_info *info,
368 struct iw_point *data, char *extra)
370 struct wireless_dev *wdev = dev->ieee80211_ptr;
371 struct iw_mlme *mlme = (struct iw_mlme *)extra;
372 struct cfg80211_registered_device *rdev;
378 rdev = wiphy_to_dev(wdev->wiphy);
380 if (wdev->iftype != NL80211_IFTYPE_STATION)
383 if (mlme->addr.sa_family != ARPHRD_ETHER)
389 case IW_MLME_DISASSOC:
390 err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
401 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);