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/export.h>
9 #include <linux/etherdevice.h>
10 #include <linux/if_arp.h>
11 #include <linux/slab.h>
12 #include <net/cfg80211.h>
13 #include <net/cfg80211-wext.h>
14 #include "wext-compat.h"
17 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
18 struct wireless_dev *wdev)
20 struct cfg80211_cached_keys *ck = NULL;
21 const u8 *prev_bssid = NULL;
24 ASSERT_RDEV_LOCK(rdev);
25 ASSERT_WDEV_LOCK(wdev);
27 if (!netif_running(wdev->netdev))
30 wdev->wext.connect.ie = wdev->wext.ie;
31 wdev->wext.connect.ie_len = wdev->wext.ie_len;
33 if (wdev->wext.keys) {
34 wdev->wext.keys->def = wdev->wext.default_key;
35 wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
36 if (wdev->wext.default_key != -1)
37 wdev->wext.connect.privacy = true;
40 if (!wdev->wext.connect.ssid_len)
43 if (wdev->wext.keys) {
44 ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
47 for (i = 0; i < 6; i++)
48 ck->params[i].key = ck->data[i];
51 if (wdev->wext.prev_bssid_valid)
52 prev_bssid = wdev->wext.prev_bssid;
54 err = __cfg80211_connect(rdev, wdev->netdev,
55 &wdev->wext.connect, ck, prev_bssid);
62 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
63 struct iw_request_info *info,
64 struct iw_freq *wextfreq, char *extra)
66 struct wireless_dev *wdev = dev->ieee80211_ptr;
67 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
68 struct ieee80211_channel *chan = NULL;
71 /* call only for station! */
72 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
75 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
80 chan = ieee80211_get_channel(wdev->wiphy, freq);
83 if (chan->flags & IEEE80211_CHAN_DISABLED)
87 cfg80211_lock_rdev(rdev);
88 mutex_lock(&rdev->devlist_mtx);
91 if (wdev->sme_state != CFG80211_SME_IDLE) {
94 if (wdev->wext.connect.channel == chan) {
99 /* if SSID set, we'll try right again, avoid event */
100 if (wdev->wext.connect.ssid_len)
102 err = __cfg80211_disconnect(rdev, dev,
103 WLAN_REASON_DEAUTH_LEAVING, event);
109 wdev->wext.connect.channel = chan;
111 /* SSID is not set, we just want to switch channel */
112 if (chan && !wdev->wext.connect.ssid_len) {
113 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
117 err = cfg80211_mgd_wext_connect(rdev, wdev);
120 mutex_unlock(&rdev->devlist_mtx);
121 cfg80211_unlock_rdev(rdev);
125 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
126 struct iw_request_info *info,
127 struct iw_freq *freq, char *extra)
129 struct wireless_dev *wdev = dev->ieee80211_ptr;
130 struct ieee80211_channel *chan = NULL;
132 /* call only for station! */
133 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
137 if (wdev->current_bss)
138 chan = wdev->current_bss->pub.channel;
139 else if (wdev->wext.connect.channel)
140 chan = wdev->wext.connect.channel;
144 freq->m = chan->center_freq;
149 /* no channel if not joining */
153 int cfg80211_mgd_wext_siwessid(struct net_device *dev,
154 struct iw_request_info *info,
155 struct iw_point *data, char *ssid)
157 struct wireless_dev *wdev = dev->ieee80211_ptr;
158 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
159 size_t len = data->length;
162 /* call only for station! */
163 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
169 /* iwconfig uses nul termination in SSID.. */
170 if (len > 0 && ssid[len - 1] == '\0')
173 cfg80211_lock_rdev(rdev);
174 mutex_lock(&rdev->devlist_mtx);
179 if (wdev->sme_state != CFG80211_SME_IDLE) {
182 if (wdev->wext.connect.ssid && len &&
183 len == wdev->wext.connect.ssid_len &&
184 memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
187 /* if SSID set now, we'll try to connect, avoid event */
190 err = __cfg80211_disconnect(rdev, dev,
191 WLAN_REASON_DEAUTH_LEAVING, event);
196 wdev->wext.prev_bssid_valid = false;
197 wdev->wext.connect.ssid = wdev->wext.ssid;
198 memcpy(wdev->wext.ssid, ssid, len);
199 wdev->wext.connect.ssid_len = len;
201 wdev->wext.connect.crypto.control_port = false;
202 wdev->wext.connect.crypto.control_port_ethertype =
203 cpu_to_be16(ETH_P_PAE);
205 err = cfg80211_mgd_wext_connect(rdev, wdev);
208 mutex_unlock(&rdev->devlist_mtx);
209 cfg80211_unlock_rdev(rdev);
213 int cfg80211_mgd_wext_giwessid(struct net_device *dev,
214 struct iw_request_info *info,
215 struct iw_point *data, char *ssid)
217 struct wireless_dev *wdev = dev->ieee80211_ptr;
219 /* call only for station! */
220 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
226 if (wdev->current_bss) {
227 const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
231 data->length = ie[1];
232 memcpy(ssid, ie + 2, data->length);
234 } else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
236 data->length = wdev->wext.connect.ssid_len;
237 memcpy(ssid, wdev->wext.connect.ssid, data->length);
244 int cfg80211_mgd_wext_siwap(struct net_device *dev,
245 struct iw_request_info *info,
246 struct sockaddr *ap_addr, char *extra)
248 struct wireless_dev *wdev = dev->ieee80211_ptr;
249 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
250 u8 *bssid = ap_addr->sa_data;
253 /* call only for station! */
254 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
257 if (ap_addr->sa_family != ARPHRD_ETHER)
261 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
264 cfg80211_lock_rdev(rdev);
265 mutex_lock(&rdev->devlist_mtx);
268 if (wdev->sme_state != CFG80211_SME_IDLE) {
271 if (!bssid && !wdev->wext.connect.bssid)
274 /* fixed already - and no change */
275 if (wdev->wext.connect.bssid && bssid &&
276 compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
279 err = __cfg80211_disconnect(rdev, dev,
280 WLAN_REASON_DEAUTH_LEAVING, false);
286 memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
287 wdev->wext.connect.bssid = wdev->wext.bssid;
289 wdev->wext.connect.bssid = NULL;
291 err = cfg80211_mgd_wext_connect(rdev, wdev);
294 mutex_unlock(&rdev->devlist_mtx);
295 cfg80211_unlock_rdev(rdev);
299 int cfg80211_mgd_wext_giwap(struct net_device *dev,
300 struct iw_request_info *info,
301 struct sockaddr *ap_addr, char *extra)
303 struct wireless_dev *wdev = dev->ieee80211_ptr;
305 /* call only for station! */
306 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
309 ap_addr->sa_family = ARPHRD_ETHER;
312 if (wdev->current_bss)
313 memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
315 memset(ap_addr->sa_data, 0, ETH_ALEN);
321 int cfg80211_wext_siwgenie(struct net_device *dev,
322 struct iw_request_info *info,
323 struct iw_point *data, char *extra)
325 struct wireless_dev *wdev = dev->ieee80211_ptr;
326 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
328 int ie_len = data->length, err;
330 if (wdev->iftype != NL80211_IFTYPE_STATION)
340 if (wdev->wext.ie_len == ie_len &&
341 memcmp(wdev->wext.ie, ie, ie_len) == 0)
345 ie = kmemdup(extra, ie_len, GFP_KERNEL);
353 kfree(wdev->wext.ie);
355 wdev->wext.ie_len = ie_len;
357 if (wdev->sme_state != CFG80211_SME_IDLE) {
358 err = __cfg80211_disconnect(rdev, dev,
359 WLAN_REASON_DEAUTH_LEAVING, false);
364 /* userspace better not think we'll reconnect */
371 int cfg80211_wext_siwmlme(struct net_device *dev,
372 struct iw_request_info *info,
373 struct iw_point *data, char *extra)
375 struct wireless_dev *wdev = dev->ieee80211_ptr;
376 struct iw_mlme *mlme = (struct iw_mlme *)extra;
377 struct cfg80211_registered_device *rdev;
383 rdev = wiphy_to_dev(wdev->wiphy);
385 if (wdev->iftype != NL80211_IFTYPE_STATION)
388 if (mlme->addr.sa_family != ARPHRD_ETHER)
394 case IW_MLME_DISASSOC:
395 err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,