Commit | Line | Data |
---|---|---|
b23aa676 | 1 | /* |
ceca7b71 JB |
2 | * SME code for cfg80211 |
3 | * both driver SME event handling and the SME implementation | |
4 | * (for nl80211's connect() and wext) | |
b23aa676 SO |
5 | * |
6 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
7 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
8 | */ | |
9 | ||
10 | #include <linux/etherdevice.h> | |
11 | #include <linux/if_arp.h> | |
5a0e3ad6 | 12 | #include <linux/slab.h> |
b23aa676 | 13 | #include <linux/workqueue.h> |
a9a11622 | 14 | #include <linux/wireless.h> |
bc3b2d7f | 15 | #include <linux/export.h> |
a9a11622 | 16 | #include <net/iw_handler.h> |
b23aa676 SO |
17 | #include <net/cfg80211.h> |
18 | #include <net/rtnetlink.h> | |
19 | #include "nl80211.h" | |
8b19e6ca | 20 | #include "reg.h" |
e35e4d28 | 21 | #include "rdev-ops.h" |
b23aa676 | 22 | |
ceca7b71 JB |
23 | /* |
24 | * Software SME in cfg80211, using auth/assoc/deauth calls to the | |
25 | * driver. This is is for implementing nl80211's connect/disconnect | |
26 | * and wireless extensions (if configured.) | |
27 | */ | |
28 | ||
6829c878 JB |
29 | struct cfg80211_conn { |
30 | struct cfg80211_connect_params params; | |
31 | /* these are sub-states of the _CONNECTING sme_state */ | |
32 | enum { | |
6829c878 JB |
33 | CFG80211_CONN_SCANNING, |
34 | CFG80211_CONN_SCAN_AGAIN, | |
35 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
36 | CFG80211_CONN_AUTHENTICATING, | |
37 | CFG80211_CONN_ASSOCIATE_NEXT, | |
38 | CFG80211_CONN_ASSOCIATING, | |
ceca7b71 JB |
39 | CFG80211_CONN_DEAUTH, |
40 | CFG80211_CONN_CONNECTED, | |
6829c878 | 41 | } state; |
f401a6f7 | 42 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
43 | u8 *ie; |
44 | size_t ie_len; | |
f401a6f7 | 45 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
46 | }; |
47 | ||
ceca7b71 | 48 | static void cfg80211_sme_free(struct wireless_dev *wdev) |
09d989d1 | 49 | { |
ceca7b71 JB |
50 | if (!wdev->conn) |
51 | return; | |
09d989d1 | 52 | |
ceca7b71 JB |
53 | kfree(wdev->conn->ie); |
54 | kfree(wdev->conn); | |
55 | wdev->conn = NULL; | |
09d989d1 LR |
56 | } |
57 | ||
6829c878 JB |
58 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
59 | { | |
79c97e97 | 60 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
61 | struct cfg80211_scan_request *request; |
62 | int n_channels, err; | |
63 | ||
64 | ASSERT_RTNL(); | |
79c97e97 | 65 | ASSERT_RDEV_LOCK(rdev); |
667503dd | 66 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 67 | |
79c97e97 | 68 | if (rdev->scan_req) |
6829c878 JB |
69 | return -EBUSY; |
70 | ||
71 | if (wdev->conn->params.channel) { | |
72 | n_channels = 1; | |
73 | } else { | |
74 | enum ieee80211_band band; | |
75 | n_channels = 0; | |
76 | ||
77 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
78 | if (!wdev->wiphy->bands[band]) | |
79 | continue; | |
80 | n_channels += wdev->wiphy->bands[band]->n_channels; | |
81 | } | |
82 | } | |
83 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + | |
84 | sizeof(request->channels[0]) * n_channels, | |
85 | GFP_KERNEL); | |
86 | if (!request) | |
87 | return -ENOMEM; | |
88 | ||
6829c878 JB |
89 | if (wdev->conn->params.channel) |
90 | request->channels[0] = wdev->conn->params.channel; | |
91 | else { | |
92 | int i = 0, j; | |
93 | enum ieee80211_band band; | |
e3081501 RM |
94 | struct ieee80211_supported_band *bands; |
95 | struct ieee80211_channel *channel; | |
6829c878 JB |
96 | |
97 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
98 | bands = wdev->wiphy->bands[band]; |
99 | if (!bands) | |
6829c878 | 100 | continue; |
e3081501 RM |
101 | for (j = 0; j < bands->n_channels; j++) { |
102 | channel = &bands->channels[j]; | |
103 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
104 | continue; | |
105 | request->channels[i++] = channel; | |
106 | } | |
107 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 108 | } |
e3081501 | 109 | n_channels = i; |
6829c878 JB |
110 | } |
111 | request->n_channels = n_channels; | |
5ba63533 | 112 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
113 | request->n_ssids = 1; |
114 | ||
115 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
116 | wdev->conn->params.ssid_len); | |
117 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
118 | ||
fd014284 | 119 | request->wdev = wdev; |
79c97e97 | 120 | request->wiphy = &rdev->wiphy; |
15d6030b | 121 | request->scan_start = jiffies; |
6829c878 | 122 | |
79c97e97 | 123 | rdev->scan_req = request; |
6829c878 | 124 | |
e35e4d28 | 125 | err = rdev_scan(rdev, request); |
6829c878 JB |
126 | if (!err) { |
127 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 128 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 129 | dev_hold(wdev->netdev); |
6829c878 | 130 | } else { |
79c97e97 | 131 | rdev->scan_req = NULL; |
6829c878 JB |
132 | kfree(request); |
133 | } | |
134 | return err; | |
135 | } | |
136 | ||
137 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
138 | { | |
79c97e97 | 139 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 140 | struct cfg80211_connect_params *params; |
f62fab73 | 141 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 142 | int err; |
6829c878 | 143 | |
667503dd JB |
144 | ASSERT_WDEV_LOCK(wdev); |
145 | ||
6829c878 JB |
146 | if (!wdev->conn) |
147 | return 0; | |
148 | ||
19957bb3 JB |
149 | params = &wdev->conn->params; |
150 | ||
6829c878 | 151 | switch (wdev->conn->state) { |
ceca7b71 JB |
152 | case CFG80211_CONN_SCANNING: |
153 | /* didn't find it during scan ... */ | |
154 | return -ENOENT; | |
6829c878 JB |
155 | case CFG80211_CONN_SCAN_AGAIN: |
156 | return cfg80211_conn_scan(wdev); | |
157 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 158 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 159 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
160 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
161 | params->channel, params->auth_type, | |
162 | params->bssid, | |
163 | params->ssid, params->ssid_len, | |
164 | NULL, 0, | |
165 | params->key, params->key_len, | |
166 | params->key_idx, NULL, 0); | |
6829c878 | 167 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 168 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 169 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 170 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
171 | req.prev_bssid = wdev->conn->prev_bssid; |
172 | req.ie = params->ie; | |
173 | req.ie_len = params->ie_len; | |
174 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
175 | req.crypto = params->crypto; | |
176 | req.flags = params->flags; | |
177 | req.ht_capa = params->ht_capa; | |
178 | req.ht_capa_mask = params->ht_capa_mask; | |
179 | req.vht_capa = params->vht_capa; | |
180 | req.vht_capa_mask = params->vht_capa_mask; | |
181 | ||
91bf9b26 JB |
182 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
183 | params->bssid, params->ssid, | |
184 | params->ssid_len, &req); | |
19957bb3 | 185 | if (err) |
91bf9b26 JB |
186 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
187 | NULL, 0, | |
188 | WLAN_REASON_DEAUTH_LEAVING, | |
189 | false); | |
19957bb3 | 190 | return err; |
ceca7b71 | 191 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
192 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
193 | NULL, 0, | |
194 | WLAN_REASON_DEAUTH_LEAVING, false); | |
ceca7b71 | 195 | return 0; |
6829c878 JB |
196 | default: |
197 | return 0; | |
198 | } | |
199 | } | |
200 | ||
201 | void cfg80211_conn_work(struct work_struct *work) | |
202 | { | |
79c97e97 | 203 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
204 | container_of(work, struct cfg80211_registered_device, conn_work); |
205 | struct wireless_dev *wdev; | |
7400f42e | 206 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
207 | |
208 | rtnl_lock(); | |
6829c878 | 209 | |
89a54e48 | 210 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
c8157976 JB |
211 | if (!wdev->netdev) |
212 | continue; | |
213 | ||
667503dd JB |
214 | wdev_lock(wdev); |
215 | if (!netif_running(wdev->netdev)) { | |
216 | wdev_unlock(wdev); | |
6829c878 | 217 | continue; |
667503dd | 218 | } |
ceca7b71 JB |
219 | if (!wdev->conn || |
220 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 221 | wdev_unlock(wdev); |
6829c878 | 222 | continue; |
667503dd | 223 | } |
7400f42e JB |
224 | if (wdev->conn->params.bssid) { |
225 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
226 | bssid = bssid_buf; | |
227 | } | |
ceca7b71 | 228 | if (cfg80211_conn_do_work(wdev)) { |
667503dd | 229 | __cfg80211_connect_result( |
7d930bc3 | 230 | wdev->netdev, bssid, |
667503dd JB |
231 | NULL, 0, NULL, 0, |
232 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 233 | false, NULL); |
ceca7b71 JB |
234 | cfg80211_sme_free(wdev); |
235 | } | |
667503dd | 236 | wdev_unlock(wdev); |
6829c878 JB |
237 | } |
238 | ||
6829c878 JB |
239 | rtnl_unlock(); |
240 | } | |
241 | ||
bbac31f4 | 242 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 243 | { |
79c97e97 | 244 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
245 | struct cfg80211_bss *bss; |
246 | u16 capa = WLAN_CAPABILITY_ESS; | |
247 | ||
667503dd JB |
248 | ASSERT_WDEV_LOCK(wdev); |
249 | ||
6829c878 JB |
250 | if (wdev->conn->params.privacy) |
251 | capa |= WLAN_CAPABILITY_PRIVACY; | |
252 | ||
ed9d0102 JM |
253 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
254 | wdev->conn->params.bssid, | |
6829c878 JB |
255 | wdev->conn->params.ssid, |
256 | wdev->conn->params.ssid_len, | |
257 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
258 | capa); | |
6829c878 | 259 | if (!bss) |
bbac31f4 | 260 | return NULL; |
6829c878 JB |
261 | |
262 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
263 | wdev->conn->params.bssid = wdev->conn->bssid; | |
264 | wdev->conn->params.channel = bss->channel; | |
265 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 266 | schedule_work(&rdev->conn_work); |
6829c878 | 267 | |
bbac31f4 | 268 | return bss; |
6829c878 JB |
269 | } |
270 | ||
667503dd | 271 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
272 | { |
273 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 274 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 275 | struct cfg80211_bss *bss; |
6829c878 | 276 | |
667503dd JB |
277 | ASSERT_WDEV_LOCK(wdev); |
278 | ||
d4b1a687 | 279 | if (!wdev->conn) |
6829c878 JB |
280 | return; |
281 | ||
282 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
283 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
284 | return; | |
285 | ||
bbac31f4 | 286 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 287 | if (bss) |
5b112d3d | 288 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
289 | else |
290 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
291 | } |
292 | ||
667503dd JB |
293 | void cfg80211_sme_scan_done(struct net_device *dev) |
294 | { | |
295 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
296 | ||
297 | wdev_lock(wdev); | |
298 | __cfg80211_sme_scan_done(dev); | |
299 | wdev_unlock(wdev); | |
300 | } | |
301 | ||
ceca7b71 | 302 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 303 | { |
6829c878 JB |
304 | struct wiphy *wiphy = wdev->wiphy; |
305 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
306 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
307 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
308 | ||
667503dd JB |
309 | ASSERT_WDEV_LOCK(wdev); |
310 | ||
ceca7b71 | 311 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
312 | return; |
313 | ||
314 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
315 | wdev->conn->auto_auth && | |
316 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
317 | /* select automatically between only open, shared, leap */ | |
318 | switch (wdev->conn->params.auth_type) { | |
319 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
320 | if (wdev->connect_keys) |
321 | wdev->conn->params.auth_type = | |
322 | NL80211_AUTHTYPE_SHARED_KEY; | |
323 | else | |
324 | wdev->conn->params.auth_type = | |
325 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
326 | break; |
327 | case NL80211_AUTHTYPE_SHARED_KEY: | |
328 | wdev->conn->params.auth_type = | |
329 | NL80211_AUTHTYPE_NETWORK_EAP; | |
330 | break; | |
331 | default: | |
332 | /* huh? */ | |
333 | wdev->conn->params.auth_type = | |
334 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
335 | break; | |
336 | } | |
337 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
338 | schedule_work(&rdev->conn_work); | |
19957bb3 | 339 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
340 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
341 | NULL, 0, NULL, 0, | |
df7fc0f9 | 342 | status_code, false, NULL); |
ceca7b71 | 343 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
344 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
345 | schedule_work(&rdev->conn_work); | |
346 | } | |
347 | } | |
b23aa676 | 348 | |
ceca7b71 | 349 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 350 | { |
ceca7b71 | 351 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
f401a6f7 | 352 | |
ceca7b71 | 353 | if (!wdev->conn) |
f401a6f7 JB |
354 | return false; |
355 | ||
ceca7b71 JB |
356 | if (status == WLAN_STATUS_SUCCESS) { |
357 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 358 | return false; |
ceca7b71 | 359 | } |
f401a6f7 | 360 | |
ceca7b71 JB |
361 | if (wdev->conn->prev_bssid_valid) { |
362 | /* | |
363 | * Some stupid APs don't accept reassoc, so we | |
364 | * need to fall back to trying regular assoc; | |
365 | * return true so no event is sent to userspace. | |
366 | */ | |
367 | wdev->conn->prev_bssid_valid = false; | |
368 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
369 | schedule_work(&rdev->conn_work); | |
370 | return true; | |
371 | } | |
372 | ||
373 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
f401a6f7 | 374 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
375 | return false; |
376 | } | |
f401a6f7 | 377 | |
ceca7b71 JB |
378 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
379 | { | |
380 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
381 | } |
382 | ||
ceca7b71 | 383 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 384 | { |
ceca7b71 JB |
385 | cfg80211_sme_free(wdev); |
386 | } | |
7d930bc3 | 387 | |
ceca7b71 JB |
388 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
389 | { | |
390 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
391 | ||
392 | if (!wdev->conn) | |
393 | return; | |
394 | ||
395 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
396 | schedule_work(&rdev->conn_work); |
397 | } | |
398 | ||
ceca7b71 JB |
399 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
400 | { | |
401 | cfg80211_sme_disassoc(wdev); | |
402 | } | |
403 | ||
404 | static int cfg80211_sme_connect(struct wireless_dev *wdev, | |
405 | struct cfg80211_connect_params *connect, | |
406 | const u8 *prev_bssid) | |
407 | { | |
408 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
409 | struct cfg80211_bss *bss; | |
410 | int err; | |
411 | ||
412 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
413 | return -EOPNOTSUPP; | |
414 | ||
415 | if (wdev->current_bss) | |
416 | return -EALREADY; | |
417 | ||
418 | if (WARN_ON(wdev->conn)) | |
419 | return -EINPROGRESS; | |
420 | ||
421 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
422 | if (!wdev->conn) | |
423 | return -ENOMEM; | |
424 | ||
425 | /* | |
426 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
427 | */ | |
428 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
429 | if (connect->bssid) { | |
430 | wdev->conn->params.bssid = wdev->conn->bssid; | |
431 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
432 | } | |
433 | ||
434 | if (connect->ie) { | |
435 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
436 | GFP_KERNEL); | |
437 | wdev->conn->params.ie = wdev->conn->ie; | |
438 | if (!wdev->conn->ie) { | |
439 | kfree(wdev->conn); | |
440 | wdev->conn = NULL; | |
441 | return -ENOMEM; | |
442 | } | |
443 | } | |
444 | ||
445 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
446 | wdev->conn->auto_auth = true; | |
447 | /* start with open system ... should mostly work */ | |
448 | wdev->conn->params.auth_type = | |
449 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
450 | } else { | |
451 | wdev->conn->auto_auth = false; | |
452 | } | |
453 | ||
454 | wdev->conn->params.ssid = wdev->ssid; | |
455 | wdev->conn->params.ssid_len = connect->ssid_len; | |
456 | ||
457 | /* see if we have the bss already */ | |
458 | bss = cfg80211_get_conn_bss(wdev); | |
459 | ||
460 | if (prev_bssid) { | |
461 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
462 | wdev->conn->prev_bssid_valid = true; | |
463 | } | |
464 | ||
465 | /* we're good if we have a matching bss struct */ | |
466 | if (bss) { | |
467 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
468 | err = cfg80211_conn_do_work(wdev); | |
469 | cfg80211_put_bss(wdev->wiphy, bss); | |
470 | } else { | |
471 | /* otherwise we'll need to scan for the AP first */ | |
472 | err = cfg80211_conn_scan(wdev); | |
473 | ||
474 | /* | |
475 | * If we can't scan right now, then we need to scan again | |
476 | * after the current scan finished, since the parameters | |
477 | * changed (unless we find a good AP anyway). | |
478 | */ | |
479 | if (err == -EBUSY) { | |
480 | err = 0; | |
481 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
482 | } | |
483 | } | |
484 | ||
485 | if (err) | |
486 | cfg80211_sme_free(wdev); | |
487 | ||
488 | return err; | |
489 | } | |
490 | ||
491 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
492 | { | |
493 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
494 | int err; | |
495 | ||
496 | if (!wdev->conn) | |
497 | return 0; | |
498 | ||
499 | if (!rdev->ops->deauth) | |
500 | return -EOPNOTSUPP; | |
501 | ||
502 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
503 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
504 | err = 0; | |
505 | goto out; | |
506 | } | |
507 | ||
508 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
509 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
510 | wdev->conn->params.bssid, | |
511 | NULL, 0, reason, false); | |
512 | out: | |
513 | cfg80211_sme_free(wdev); | |
514 | return err; | |
515 | } | |
516 | ||
517 | /* | |
518 | * code shared for in-device and software SME | |
519 | */ | |
520 | ||
521 | static bool cfg80211_is_all_idle(void) | |
522 | { | |
523 | struct cfg80211_registered_device *rdev; | |
524 | struct wireless_dev *wdev; | |
525 | bool is_all_idle = true; | |
526 | ||
527 | /* | |
528 | * All devices must be idle as otherwise if you are actively | |
529 | * scanning some new beacon hints could be learned and would | |
530 | * count as new regulatory hints. | |
531 | */ | |
532 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
533 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
534 | wdev_lock(wdev); | |
535 | if (wdev->conn || wdev->current_bss) | |
536 | is_all_idle = false; | |
537 | wdev_unlock(wdev); | |
538 | } | |
539 | } | |
540 | ||
541 | return is_all_idle; | |
542 | } | |
543 | ||
544 | static void disconnect_work(struct work_struct *work) | |
545 | { | |
546 | rtnl_lock(); | |
547 | if (cfg80211_is_all_idle()) | |
548 | regulatory_hint_disconnect(); | |
549 | rtnl_unlock(); | |
550 | } | |
551 | ||
552 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
553 | ||
554 | ||
555 | /* | |
556 | * API calls for drivers implementing connect/disconnect and | |
557 | * SME event handling | |
558 | */ | |
559 | ||
6f390908 | 560 | /* This method must consume bss one way or another */ |
667503dd JB |
561 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
562 | const u8 *req_ie, size_t req_ie_len, | |
563 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
564 | u16 status, bool wextev, |
565 | struct cfg80211_bss *bss) | |
b23aa676 SO |
566 | { |
567 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 568 | const u8 *country_ie; |
3d23e349 | 569 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
570 | union iwreq_data wrqu; |
571 | #endif | |
572 | ||
667503dd JB |
573 | ASSERT_WDEV_LOCK(wdev); |
574 | ||
074ac8df | 575 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
576 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
577 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 578 | return; |
6f390908 | 579 | } |
b23aa676 | 580 | |
ea416a79 | 581 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, |
e45cd82a | 582 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
583 | resp_ie, resp_ie_len, |
584 | status, GFP_KERNEL); | |
e45cd82a | 585 | |
3d23e349 | 586 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
587 | if (wextev) { |
588 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
589 | memset(&wrqu, 0, sizeof(wrqu)); | |
590 | wrqu.data.length = req_ie_len; | |
3409ff77 | 591 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
592 | } |
593 | ||
594 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
595 | memset(&wrqu, 0, sizeof(wrqu)); | |
596 | wrqu.data.length = resp_ie_len; | |
597 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
598 | } | |
599 | ||
600 | memset(&wrqu, 0, sizeof(wrqu)); | |
601 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 602 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 603 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
604 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
605 | wdev->wext.prev_bssid_valid = true; | |
606 | } | |
e45cd82a JB |
607 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
608 | } | |
609 | #endif | |
610 | ||
df7fc0f9 JB |
611 | if (wdev->current_bss) { |
612 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 613 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
614 | wdev->current_bss = NULL; |
615 | } | |
616 | ||
fffd0934 | 617 | if (status != WLAN_STATUS_SUCCESS) { |
fffd0934 JB |
618 | kfree(wdev->connect_keys); |
619 | wdev->connect_keys = NULL; | |
8dadadb7 | 620 | wdev->ssid_len = 0; |
f1940c57 JB |
621 | if (bss) { |
622 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
623 | cfg80211_put_bss(wdev->wiphy, bss); | |
624 | } | |
fffd0934 | 625 | return; |
b23aa676 | 626 | } |
fffd0934 | 627 | |
f1940c57 JB |
628 | if (!bss) { |
629 | WARN_ON_ONCE(!wiphy_to_dev(wdev->wiphy)->ops->connect); | |
ceca7b71 | 630 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
df7fc0f9 JB |
631 | wdev->ssid, wdev->ssid_len, |
632 | WLAN_CAPABILITY_ESS, | |
633 | WLAN_CAPABILITY_ESS); | |
f1940c57 JB |
634 | if (WARN_ON(!bss)) |
635 | return; | |
636 | cfg80211_hold_bss(bss_from_pub(bss)); | |
637 | } | |
fffd0934 | 638 | |
fffd0934 JB |
639 | wdev->current_bss = bss_from_pub(bss); |
640 | ||
fffd0934 | 641 | cfg80211_upload_connect_keys(wdev); |
8b19e6ca | 642 | |
9caf0364 JB |
643 | rcu_read_lock(); |
644 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
645 | if (!country_ie) { | |
646 | rcu_read_unlock(); | |
647 | return; | |
648 | } | |
649 | ||
650 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
651 | rcu_read_unlock(); | |
8b19e6ca LR |
652 | |
653 | if (!country_ie) | |
654 | return; | |
655 | ||
656 | /* | |
657 | * ieee80211_bss_get_ie() ensures we can access: | |
658 | * - country_ie + 2, the start of the country ie data, and | |
659 | * - and country_ie[1] which is the IE length | |
660 | */ | |
1a919318 JB |
661 | regulatory_hint_11d(wdev->wiphy, bss->channel->band, |
662 | country_ie + 2, country_ie[1]); | |
9caf0364 | 663 | kfree(country_ie); |
b23aa676 | 664 | } |
f2129354 JB |
665 | |
666 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
667 | const u8 *req_ie, size_t req_ie_len, | |
668 | const u8 *resp_ie, size_t resp_ie_len, | |
669 | u16 status, gfp_t gfp) | |
670 | { | |
667503dd JB |
671 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
672 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
673 | struct cfg80211_event *ev; | |
674 | unsigned long flags; | |
675 | ||
676 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); | |
677 | if (!ev) | |
678 | return; | |
679 | ||
680 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
681 | if (bssid) |
682 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
683 | if (req_ie_len) { |
684 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
685 | ev->cr.req_ie_len = req_ie_len; | |
686 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
687 | } | |
688 | if (resp_ie_len) { | |
689 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
690 | ev->cr.resp_ie_len = resp_ie_len; | |
691 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
692 | } | |
667503dd JB |
693 | ev->cr.status = status; |
694 | ||
695 | spin_lock_irqsave(&wdev->event_lock, flags); | |
696 | list_add_tail(&ev->list, &wdev->event_list); | |
697 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 698 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 699 | } |
b23aa676 SO |
700 | EXPORT_SYMBOL(cfg80211_connect_result); |
701 | ||
ed9d0102 | 702 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 703 | struct cfg80211_bss *bss, |
667503dd JB |
704 | const u8 *req_ie, size_t req_ie_len, |
705 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 706 | { |
3d23e349 | 707 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
708 | union iwreq_data wrqu; |
709 | #endif | |
667503dd JB |
710 | ASSERT_WDEV_LOCK(wdev); |
711 | ||
074ac8df JB |
712 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
713 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 714 | goto out; |
b23aa676 | 715 | |
ceca7b71 | 716 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 717 | goto out; |
b23aa676 SO |
718 | |
719 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 720 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
721 | wdev->current_bss = NULL; |
722 | ||
19957bb3 JB |
723 | cfg80211_hold_bss(bss_from_pub(bss)); |
724 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 725 | |
adbde344 | 726 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bss->bssid, |
667503dd JB |
727 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
728 | GFP_KERNEL); | |
b23aa676 | 729 | |
3d23e349 | 730 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
731 | if (req_ie) { |
732 | memset(&wrqu, 0, sizeof(wrqu)); | |
733 | wrqu.data.length = req_ie_len; | |
3409ff77 | 734 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 735 | &wrqu, req_ie); |
b23aa676 SO |
736 | } |
737 | ||
738 | if (resp_ie) { | |
739 | memset(&wrqu, 0, sizeof(wrqu)); | |
740 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
741 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
742 | &wrqu, resp_ie); | |
b23aa676 SO |
743 | } |
744 | ||
745 | memset(&wrqu, 0, sizeof(wrqu)); | |
746 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
747 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
748 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 749 | wdev->wext.prev_bssid_valid = true; |
667503dd | 750 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 751 | #endif |
adbde344 VT |
752 | |
753 | return; | |
754 | out: | |
5b112d3d | 755 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 756 | } |
667503dd | 757 | |
ed9d0102 JM |
758 | void cfg80211_roamed(struct net_device *dev, |
759 | struct ieee80211_channel *channel, | |
760 | const u8 *bssid, | |
667503dd JB |
761 | const u8 *req_ie, size_t req_ie_len, |
762 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
763 | { |
764 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
765 | struct cfg80211_bss *bss; | |
766 | ||
adbde344 VT |
767 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
768 | wdev->ssid_len, WLAN_CAPABILITY_ESS, | |
769 | WLAN_CAPABILITY_ESS); | |
770 | if (WARN_ON(!bss)) | |
771 | return; | |
772 | ||
773 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
774 | resp_ie_len, gfp); | |
775 | } | |
776 | EXPORT_SYMBOL(cfg80211_roamed); | |
777 | ||
778 | void cfg80211_roamed_bss(struct net_device *dev, | |
779 | struct cfg80211_bss *bss, const u8 *req_ie, | |
780 | size_t req_ie_len, const u8 *resp_ie, | |
781 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
782 | { |
783 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
784 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
785 | struct cfg80211_event *ev; | |
786 | unsigned long flags; | |
787 | ||
adbde344 VT |
788 | if (WARN_ON(!bss)) |
789 | return; | |
790 | ||
667503dd | 791 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 792 | if (!ev) { |
5b112d3d | 793 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 794 | return; |
adbde344 | 795 | } |
667503dd JB |
796 | |
797 | ev->type = EVENT_ROAMED; | |
667503dd JB |
798 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
799 | ev->rm.req_ie_len = req_ie_len; | |
800 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
801 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
802 | ev->rm.resp_ie_len = resp_ie_len; | |
803 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 804 | ev->rm.bss = bss; |
667503dd JB |
805 | |
806 | spin_lock_irqsave(&wdev->event_lock, flags); | |
807 | list_add_tail(&ev->list, &wdev->event_list); | |
808 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 809 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 810 | } |
adbde344 | 811 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 812 | |
667503dd | 813 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 814 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
815 | { |
816 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
817 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
818 | int i; | |
3d23e349 | 819 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
820 | union iwreq_data wrqu; |
821 | #endif | |
822 | ||
667503dd JB |
823 | ASSERT_WDEV_LOCK(wdev); |
824 | ||
074ac8df JB |
825 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
826 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
827 | return; |
828 | ||
b23aa676 SO |
829 | if (wdev->current_bss) { |
830 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 831 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
832 | } |
833 | ||
834 | wdev->current_bss = NULL; | |
8dadadb7 | 835 | wdev->ssid_len = 0; |
b23aa676 | 836 | |
fffd0934 JB |
837 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
838 | ||
839 | /* | |
840 | * Delete all the keys ... pairwise keys can't really | |
841 | * exist any more anyway, but default keys might. | |
842 | */ | |
843 | if (rdev->ops->del_key) | |
844 | for (i = 0; i < 6; i++) | |
e35e4d28 | 845 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 846 | |
3d23e349 | 847 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
848 | memset(&wrqu, 0, sizeof(wrqu)); |
849 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
850 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 851 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 852 | #endif |
09d989d1 LR |
853 | |
854 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
855 | } |
856 | ||
857 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
858 | u8 *ie, size_t ie_len, gfp_t gfp) | |
859 | { | |
667503dd JB |
860 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
861 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
862 | struct cfg80211_event *ev; | |
863 | unsigned long flags; | |
864 | ||
865 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
866 | if (!ev) | |
867 | return; | |
868 | ||
869 | ev->type = EVENT_DISCONNECTED; | |
870 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
871 | ev->dc.ie_len = ie_len; | |
872 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
873 | ev->dc.reason = reason; | |
874 | ||
875 | spin_lock_irqsave(&wdev->event_lock, flags); | |
876 | list_add_tail(&ev->list, &wdev->event_list); | |
877 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 878 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
879 | } |
880 | EXPORT_SYMBOL(cfg80211_disconnected); | |
881 | ||
ceca7b71 JB |
882 | /* |
883 | * API calls for nl80211/wext compatibility code | |
884 | */ | |
83739b03 JB |
885 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
886 | struct net_device *dev, | |
887 | struct cfg80211_connect_params *connect, | |
888 | struct cfg80211_cached_keys *connkeys, | |
889 | const u8 *prev_bssid) | |
b23aa676 | 890 | { |
b23aa676 | 891 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
892 | int err; |
893 | ||
894 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 895 | |
fffd0934 JB |
896 | if (WARN_ON(wdev->connect_keys)) { |
897 | kfree(wdev->connect_keys); | |
898 | wdev->connect_keys = NULL; | |
899 | } | |
900 | ||
7e7c8926 BG |
901 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
902 | rdev->wiphy.ht_capa_mod_mask); | |
903 | ||
fffd0934 JB |
904 | if (connkeys && connkeys->def >= 0) { |
905 | int idx; | |
bcba8eae | 906 | u32 cipher; |
fffd0934 JB |
907 | |
908 | idx = connkeys->def; | |
bcba8eae | 909 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 910 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
911 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
912 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
913 | connect->key_idx = idx; |
914 | connect->key = connkeys->params[idx].key; | |
915 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
916 | |
917 | /* | |
918 | * If ciphers are not set (e.g. when going through | |
919 | * iwconfig), we have to set them appropriately here. | |
920 | */ | |
921 | if (connect->crypto.cipher_group == 0) | |
922 | connect->crypto.cipher_group = cipher; | |
923 | ||
924 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
925 | connect->crypto.n_ciphers_pairwise = 1; | |
926 | connect->crypto.ciphers_pairwise[0] = cipher; | |
927 | } | |
fffd0934 JB |
928 | } |
929 | } | |
930 | ||
ceca7b71 JB |
931 | wdev->connect_keys = connkeys; |
932 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
933 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 934 | |
ceca7b71 JB |
935 | if (!rdev->ops->connect) |
936 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
937 | else | |
e35e4d28 | 938 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 939 | |
ceca7b71 JB |
940 | if (err) { |
941 | wdev->connect_keys = NULL; | |
942 | wdev->ssid_len = 0; | |
943 | return err; | |
6829c878 | 944 | } |
ceca7b71 JB |
945 | |
946 | return 0; | |
b23aa676 SO |
947 | } |
948 | ||
83739b03 JB |
949 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
950 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 951 | { |
6829c878 | 952 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
953 | int err; |
954 | ||
667503dd JB |
955 | ASSERT_WDEV_LOCK(wdev); |
956 | ||
fffd0934 JB |
957 | kfree(wdev->connect_keys); |
958 | wdev->connect_keys = NULL; | |
959 | ||
ceca7b71 JB |
960 | if (wdev->conn) { |
961 | err = cfg80211_sme_disconnect(wdev, reason); | |
962 | } else if (!rdev->ops->disconnect) { | |
963 | cfg80211_mlme_down(rdev, dev); | |
964 | err = 0; | |
b23aa676 | 965 | } else { |
e35e4d28 | 966 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 SO |
967 | } |
968 | ||
ceca7b71 | 969 | return err; |
19957bb3 | 970 | } |