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Commit | Line | Data |
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b23aa676 SO |
1 | /* |
2 | * SME code for cfg80211's connect emulation. | |
3 | * | |
4 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
5 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
6 | */ | |
7 | ||
8 | #include <linux/etherdevice.h> | |
9 | #include <linux/if_arp.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
b23aa676 | 11 | #include <linux/workqueue.h> |
a9a11622 JB |
12 | #include <linux/wireless.h> |
13 | #include <net/iw_handler.h> | |
b23aa676 SO |
14 | #include <net/cfg80211.h> |
15 | #include <net/rtnetlink.h> | |
16 | #include "nl80211.h" | |
8b19e6ca | 17 | #include "reg.h" |
b23aa676 | 18 | |
6829c878 JB |
19 | struct cfg80211_conn { |
20 | struct cfg80211_connect_params params; | |
21 | /* these are sub-states of the _CONNECTING sme_state */ | |
22 | enum { | |
23 | CFG80211_CONN_IDLE, | |
24 | CFG80211_CONN_SCANNING, | |
25 | CFG80211_CONN_SCAN_AGAIN, | |
26 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
27 | CFG80211_CONN_AUTHENTICATING, | |
28 | CFG80211_CONN_ASSOCIATE_NEXT, | |
29 | CFG80211_CONN_ASSOCIATING, | |
7d930bc3 | 30 | CFG80211_CONN_DEAUTH_ASSOC_FAIL, |
6829c878 | 31 | } state; |
f401a6f7 | 32 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
33 | u8 *ie; |
34 | size_t ie_len; | |
f401a6f7 | 35 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
36 | }; |
37 | ||
09d989d1 LR |
38 | bool cfg80211_is_all_idle(void) |
39 | { | |
40 | struct cfg80211_registered_device *rdev; | |
41 | struct wireless_dev *wdev; | |
42 | bool is_all_idle = true; | |
43 | ||
44 | mutex_lock(&cfg80211_mutex); | |
45 | ||
46 | /* | |
47 | * All devices must be idle as otherwise if you are actively | |
48 | * scanning some new beacon hints could be learned and would | |
49 | * count as new regulatory hints. | |
50 | */ | |
51 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
52 | cfg80211_lock_rdev(rdev); | |
53 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
54 | wdev_lock(wdev); | |
55 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
56 | is_all_idle = false; | |
57 | wdev_unlock(wdev); | |
58 | } | |
59 | cfg80211_unlock_rdev(rdev); | |
60 | } | |
61 | ||
62 | mutex_unlock(&cfg80211_mutex); | |
63 | ||
64 | return is_all_idle; | |
65 | } | |
66 | ||
67 | static void disconnect_work(struct work_struct *work) | |
68 | { | |
69 | if (!cfg80211_is_all_idle()) | |
70 | return; | |
71 | ||
72 | regulatory_hint_disconnect(); | |
73 | } | |
74 | ||
75 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
6829c878 JB |
76 | |
77 | static int cfg80211_conn_scan(struct wireless_dev *wdev) | |
78 | { | |
79c97e97 | 79 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
80 | struct cfg80211_scan_request *request; |
81 | int n_channels, err; | |
82 | ||
83 | ASSERT_RTNL(); | |
79c97e97 | 84 | ASSERT_RDEV_LOCK(rdev); |
667503dd | 85 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 86 | |
79c97e97 | 87 | if (rdev->scan_req) |
6829c878 JB |
88 | return -EBUSY; |
89 | ||
90 | if (wdev->conn->params.channel) { | |
91 | n_channels = 1; | |
92 | } else { | |
93 | enum ieee80211_band band; | |
94 | n_channels = 0; | |
95 | ||
96 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
97 | if (!wdev->wiphy->bands[band]) | |
98 | continue; | |
99 | n_channels += wdev->wiphy->bands[band]->n_channels; | |
100 | } | |
101 | } | |
102 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + | |
103 | sizeof(request->channels[0]) * n_channels, | |
104 | GFP_KERNEL); | |
105 | if (!request) | |
106 | return -ENOMEM; | |
107 | ||
6829c878 JB |
108 | if (wdev->conn->params.channel) |
109 | request->channels[0] = wdev->conn->params.channel; | |
110 | else { | |
111 | int i = 0, j; | |
112 | enum ieee80211_band band; | |
113 | ||
114 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
115 | if (!wdev->wiphy->bands[band]) | |
116 | continue; | |
117 | for (j = 0; j < wdev->wiphy->bands[band]->n_channels; | |
118 | i++, j++) | |
119 | request->channels[i] = | |
120 | &wdev->wiphy->bands[band]->channels[j]; | |
121 | } | |
122 | } | |
123 | request->n_channels = n_channels; | |
5ba63533 | 124 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
125 | request->n_ssids = 1; |
126 | ||
127 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
128 | wdev->conn->params.ssid_len); | |
129 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
130 | ||
463d0183 | 131 | request->dev = wdev->netdev; |
79c97e97 | 132 | request->wiphy = &rdev->wiphy; |
6829c878 | 133 | |
79c97e97 | 134 | rdev->scan_req = request; |
6829c878 | 135 | |
79c97e97 | 136 | err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request); |
6829c878 JB |
137 | if (!err) { |
138 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
79c97e97 | 139 | nl80211_send_scan_start(rdev, wdev->netdev); |
463d0183 | 140 | dev_hold(wdev->netdev); |
6829c878 | 141 | } else { |
79c97e97 | 142 | rdev->scan_req = NULL; |
6829c878 JB |
143 | kfree(request); |
144 | } | |
145 | return err; | |
146 | } | |
147 | ||
148 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
149 | { | |
79c97e97 | 150 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 151 | struct cfg80211_connect_params *params; |
f401a6f7 | 152 | const u8 *prev_bssid = NULL; |
19957bb3 | 153 | int err; |
6829c878 | 154 | |
667503dd JB |
155 | ASSERT_WDEV_LOCK(wdev); |
156 | ||
6829c878 JB |
157 | if (!wdev->conn) |
158 | return 0; | |
159 | ||
19957bb3 JB |
160 | params = &wdev->conn->params; |
161 | ||
6829c878 JB |
162 | switch (wdev->conn->state) { |
163 | case CFG80211_CONN_SCAN_AGAIN: | |
164 | return cfg80211_conn_scan(wdev); | |
165 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 166 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 167 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 168 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
169 | params->channel, params->auth_type, |
170 | params->bssid, | |
171 | params->ssid, params->ssid_len, | |
fffd0934 JB |
172 | NULL, 0, |
173 | params->key, params->key_len, | |
174 | params->key_idx); | |
6829c878 | 175 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 176 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 177 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
178 | if (wdev->conn->prev_bssid_valid) |
179 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 180 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 181 | params->channel, params->bssid, |
f401a6f7 | 182 | prev_bssid, |
667503dd JB |
183 | params->ssid, params->ssid_len, |
184 | params->ie, params->ie_len, | |
185 | false, ¶ms->crypto); | |
19957bb3 | 186 | if (err) |
79c97e97 | 187 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd JB |
188 | NULL, 0, |
189 | WLAN_REASON_DEAUTH_LEAVING); | |
19957bb3 | 190 | return err; |
7d930bc3 JB |
191 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
192 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
193 | NULL, 0, | |
194 | WLAN_REASON_DEAUTH_LEAVING); | |
195 | /* return an error so that we call __cfg80211_connect_result() */ | |
196 | return -EINVAL; | |
6829c878 JB |
197 | default: |
198 | return 0; | |
199 | } | |
200 | } | |
201 | ||
202 | void cfg80211_conn_work(struct work_struct *work) | |
203 | { | |
79c97e97 | 204 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
205 | container_of(work, struct cfg80211_registered_device, conn_work); |
206 | struct wireless_dev *wdev; | |
7400f42e | 207 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
208 | |
209 | rtnl_lock(); | |
79c97e97 JB |
210 | cfg80211_lock_rdev(rdev); |
211 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 212 | |
79c97e97 | 213 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
667503dd JB |
214 | wdev_lock(wdev); |
215 | if (!netif_running(wdev->netdev)) { | |
216 | wdev_unlock(wdev); | |
6829c878 | 217 | continue; |
667503dd JB |
218 | } |
219 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
220 | wdev_unlock(wdev); | |
6829c878 | 221 | continue; |
667503dd | 222 | } |
7400f42e JB |
223 | if (wdev->conn->params.bssid) { |
224 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
225 | bssid = bssid_buf; | |
226 | } | |
6829c878 | 227 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 228 | __cfg80211_connect_result( |
7d930bc3 | 229 | wdev->netdev, bssid, |
667503dd JB |
230 | NULL, 0, NULL, 0, |
231 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 232 | false, NULL); |
667503dd | 233 | wdev_unlock(wdev); |
6829c878 JB |
234 | } |
235 | ||
79c97e97 JB |
236 | mutex_unlock(&rdev->devlist_mtx); |
237 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
238 | rtnl_unlock(); |
239 | } | |
240 | ||
bbac31f4 | 241 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 242 | { |
79c97e97 | 243 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
244 | struct cfg80211_bss *bss; |
245 | u16 capa = WLAN_CAPABILITY_ESS; | |
246 | ||
667503dd JB |
247 | ASSERT_WDEV_LOCK(wdev); |
248 | ||
6829c878 JB |
249 | if (wdev->conn->params.privacy) |
250 | capa |= WLAN_CAPABILITY_PRIVACY; | |
251 | ||
252 | bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid, | |
253 | wdev->conn->params.ssid, | |
254 | wdev->conn->params.ssid_len, | |
255 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
256 | capa); | |
6829c878 | 257 | if (!bss) |
bbac31f4 | 258 | return NULL; |
6829c878 JB |
259 | |
260 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
261 | wdev->conn->params.bssid = wdev->conn->bssid; | |
262 | wdev->conn->params.channel = bss->channel; | |
263 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 264 | schedule_work(&rdev->conn_work); |
6829c878 | 265 | |
bbac31f4 | 266 | return bss; |
6829c878 JB |
267 | } |
268 | ||
667503dd | 269 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
270 | { |
271 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 272 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 273 | struct cfg80211_bss *bss; |
6829c878 | 274 | |
667503dd JB |
275 | ASSERT_WDEV_LOCK(wdev); |
276 | ||
6829c878 JB |
277 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
278 | return; | |
279 | ||
d4b1a687 | 280 | if (!wdev->conn) |
6829c878 JB |
281 | return; |
282 | ||
283 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
284 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
285 | return; | |
286 | ||
bbac31f4 JB |
287 | bss = cfg80211_get_conn_bss(wdev); |
288 | if (bss) { | |
289 | cfg80211_put_bss(bss); | |
290 | } else { | |
6829c878 JB |
291 | /* not found */ |
292 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 293 | schedule_work(&rdev->conn_work); |
6829c878 | 294 | else |
667503dd JB |
295 | __cfg80211_connect_result( |
296 | wdev->netdev, | |
297 | wdev->conn->params.bssid, | |
298 | NULL, 0, NULL, 0, | |
299 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 300 | false, NULL); |
6829c878 JB |
301 | } |
302 | } | |
303 | ||
667503dd JB |
304 | void cfg80211_sme_scan_done(struct net_device *dev) |
305 | { | |
306 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
307 | ||
59bbb6f7 | 308 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
309 | wdev_lock(wdev); |
310 | __cfg80211_sme_scan_done(dev); | |
311 | wdev_unlock(wdev); | |
59bbb6f7 | 312 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
313 | } |
314 | ||
315 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
316 | const u8 *buf, size_t len) | |
6829c878 JB |
317 | { |
318 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
319 | struct wiphy *wiphy = wdev->wiphy; | |
320 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
321 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
322 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
323 | ||
667503dd JB |
324 | ASSERT_WDEV_LOCK(wdev); |
325 | ||
6829c878 JB |
326 | /* should only RX auth frames when connecting */ |
327 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
328 | return; | |
329 | ||
330 | if (WARN_ON(!wdev->conn)) | |
331 | return; | |
332 | ||
333 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
334 | wdev->conn->auto_auth && | |
335 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
336 | /* select automatically between only open, shared, leap */ | |
337 | switch (wdev->conn->params.auth_type) { | |
338 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
339 | if (wdev->connect_keys) |
340 | wdev->conn->params.auth_type = | |
341 | NL80211_AUTHTYPE_SHARED_KEY; | |
342 | else | |
343 | wdev->conn->params.auth_type = | |
344 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
345 | break; |
346 | case NL80211_AUTHTYPE_SHARED_KEY: | |
347 | wdev->conn->params.auth_type = | |
348 | NL80211_AUTHTYPE_NETWORK_EAP; | |
349 | break; | |
350 | default: | |
351 | /* huh? */ | |
352 | wdev->conn->params.auth_type = | |
353 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
354 | break; | |
355 | } | |
356 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
357 | schedule_work(&rdev->conn_work); | |
19957bb3 | 358 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 359 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 360 | status_code, false, NULL); |
19957bb3 | 361 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
362 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
363 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
364 | schedule_work(&rdev->conn_work); | |
365 | } | |
366 | } | |
b23aa676 | 367 | |
f401a6f7 JB |
368 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
369 | { | |
370 | struct wiphy *wiphy = wdev->wiphy; | |
371 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
372 | ||
373 | if (WARN_ON(!wdev->conn)) | |
374 | return false; | |
375 | ||
376 | if (!wdev->conn->prev_bssid_valid) | |
377 | return false; | |
378 | ||
379 | /* | |
380 | * Some stupid APs don't accept reassoc, so we | |
381 | * need to fall back to trying regular assoc. | |
382 | */ | |
383 | wdev->conn->prev_bssid_valid = false; | |
384 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
385 | schedule_work(&rdev->conn_work); | |
386 | ||
387 | return true; | |
388 | } | |
389 | ||
7d930bc3 JB |
390 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
391 | { | |
392 | struct wiphy *wiphy = wdev->wiphy; | |
393 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
394 | ||
395 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
396 | schedule_work(&rdev->conn_work); | |
397 | } | |
398 | ||
667503dd JB |
399 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
400 | const u8 *req_ie, size_t req_ie_len, | |
401 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
402 | u16 status, bool wextev, |
403 | struct cfg80211_bss *bss) | |
b23aa676 SO |
404 | { |
405 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8b19e6ca | 406 | u8 *country_ie; |
3d23e349 | 407 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
408 | union iwreq_data wrqu; |
409 | #endif | |
410 | ||
667503dd JB |
411 | ASSERT_WDEV_LOCK(wdev); |
412 | ||
b23aa676 SO |
413 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
414 | return; | |
415 | ||
f7969969 | 416 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
417 | return; |
418 | ||
419 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 420 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
421 | resp_ie, resp_ie_len, |
422 | status, GFP_KERNEL); | |
e45cd82a | 423 | |
3d23e349 | 424 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
425 | if (wextev) { |
426 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
427 | memset(&wrqu, 0, sizeof(wrqu)); | |
428 | wrqu.data.length = req_ie_len; | |
3409ff77 | 429 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
430 | } |
431 | ||
432 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
433 | memset(&wrqu, 0, sizeof(wrqu)); | |
434 | wrqu.data.length = resp_ie_len; | |
435 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
436 | } | |
437 | ||
438 | memset(&wrqu, 0, sizeof(wrqu)); | |
439 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 440 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 441 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
442 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
443 | wdev->wext.prev_bssid_valid = true; | |
444 | } | |
e45cd82a JB |
445 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
446 | } | |
447 | #endif | |
448 | ||
df7fc0f9 JB |
449 | if (wdev->current_bss) { |
450 | cfg80211_unhold_bss(wdev->current_bss); | |
451 | cfg80211_put_bss(&wdev->current_bss->pub); | |
452 | wdev->current_bss = NULL; | |
453 | } | |
454 | ||
19957bb3 JB |
455 | if (wdev->conn) |
456 | wdev->conn->state = CFG80211_CONN_IDLE; | |
457 | ||
fffd0934 | 458 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 459 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
460 | if (wdev->conn) |
461 | kfree(wdev->conn->ie); | |
19957bb3 JB |
462 | kfree(wdev->conn); |
463 | wdev->conn = NULL; | |
fffd0934 JB |
464 | kfree(wdev->connect_keys); |
465 | wdev->connect_keys = NULL; | |
8dadadb7 | 466 | wdev->ssid_len = 0; |
fffd0934 | 467 | return; |
b23aa676 | 468 | } |
fffd0934 | 469 | |
df7fc0f9 JB |
470 | if (!bss) |
471 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, | |
472 | wdev->ssid, wdev->ssid_len, | |
473 | WLAN_CAPABILITY_ESS, | |
474 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
475 | |
476 | if (WARN_ON(!bss)) | |
477 | return; | |
478 | ||
479 | cfg80211_hold_bss(bss_from_pub(bss)); | |
480 | wdev->current_bss = bss_from_pub(bss); | |
481 | ||
fffd0934 JB |
482 | wdev->sme_state = CFG80211_SME_CONNECTED; |
483 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca LR |
484 | |
485 | country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
486 | ||
487 | if (!country_ie) | |
488 | return; | |
489 | ||
490 | /* | |
491 | * ieee80211_bss_get_ie() ensures we can access: | |
492 | * - country_ie + 2, the start of the country ie data, and | |
493 | * - and country_ie[1] which is the IE length | |
494 | */ | |
495 | regulatory_hint_11d(wdev->wiphy, | |
84920e3e | 496 | bss->channel->band, |
8b19e6ca LR |
497 | country_ie + 2, |
498 | country_ie[1]); | |
b23aa676 | 499 | } |
f2129354 JB |
500 | |
501 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
502 | const u8 *req_ie, size_t req_ie_len, | |
503 | const u8 *resp_ie, size_t resp_ie_len, | |
504 | u16 status, gfp_t gfp) | |
505 | { | |
667503dd JB |
506 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
507 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
508 | struct cfg80211_event *ev; | |
509 | unsigned long flags; | |
510 | ||
f7969969 JB |
511 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
512 | ||
667503dd JB |
513 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
514 | if (!ev) | |
515 | return; | |
516 | ||
517 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
518 | if (bssid) |
519 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
667503dd JB |
520 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); |
521 | ev->cr.req_ie_len = req_ie_len; | |
522 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
523 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
524 | ev->cr.resp_ie_len = resp_ie_len; | |
525 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
526 | ev->cr.status = status; | |
527 | ||
528 | spin_lock_irqsave(&wdev->event_lock, flags); | |
529 | list_add_tail(&ev->list, &wdev->event_list); | |
530 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 531 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 532 | } |
b23aa676 SO |
533 | EXPORT_SYMBOL(cfg80211_connect_result); |
534 | ||
667503dd JB |
535 | void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, |
536 | const u8 *req_ie, size_t req_ie_len, | |
537 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 538 | { |
b23aa676 | 539 | struct cfg80211_bss *bss; |
3d23e349 | 540 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
541 | union iwreq_data wrqu; |
542 | #endif | |
543 | ||
667503dd JB |
544 | ASSERT_WDEV_LOCK(wdev); |
545 | ||
b23aa676 SO |
546 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
547 | return; | |
548 | ||
f7969969 | 549 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
550 | return; |
551 | ||
552 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
553 | if (WARN_ON(!wdev->current_bss)) { | |
554 | return; | |
555 | } | |
556 | ||
557 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 558 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
559 | wdev->current_bss = NULL; |
560 | ||
561 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, | |
562 | wdev->ssid, wdev->ssid_len, | |
563 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
564 | ||
565 | if (WARN_ON(!bss)) | |
566 | return; | |
567 | ||
19957bb3 JB |
568 | cfg80211_hold_bss(bss_from_pub(bss)); |
569 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 570 | |
667503dd JB |
571 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
572 | req_ie, req_ie_len, resp_ie, resp_ie_len, | |
573 | GFP_KERNEL); | |
b23aa676 | 574 | |
3d23e349 | 575 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
576 | if (req_ie) { |
577 | memset(&wrqu, 0, sizeof(wrqu)); | |
578 | wrqu.data.length = req_ie_len; | |
3409ff77 | 579 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 580 | &wrqu, req_ie); |
b23aa676 SO |
581 | } |
582 | ||
583 | if (resp_ie) { | |
584 | memset(&wrqu, 0, sizeof(wrqu)); | |
585 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
586 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
587 | &wrqu, resp_ie); | |
b23aa676 SO |
588 | } |
589 | ||
590 | memset(&wrqu, 0, sizeof(wrqu)); | |
591 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
592 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
f401a6f7 JB |
593 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
594 | wdev->wext.prev_bssid_valid = true; | |
667503dd | 595 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 SO |
596 | #endif |
597 | } | |
667503dd JB |
598 | |
599 | void cfg80211_roamed(struct net_device *dev, const u8 *bssid, | |
600 | const u8 *req_ie, size_t req_ie_len, | |
601 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
602 | { | |
603 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
604 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
605 | struct cfg80211_event *ev; | |
606 | unsigned long flags; | |
607 | ||
f7969969 JB |
608 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
609 | ||
667503dd JB |
610 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
611 | if (!ev) | |
612 | return; | |
613 | ||
614 | ev->type = EVENT_ROAMED; | |
615 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); | |
616 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); | |
617 | ev->rm.req_ie_len = req_ie_len; | |
618 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
619 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
620 | ev->rm.resp_ie_len = resp_ie_len; | |
621 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
622 | ||
623 | spin_lock_irqsave(&wdev->event_lock, flags); | |
624 | list_add_tail(&ev->list, &wdev->event_list); | |
625 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 626 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 627 | } |
b23aa676 SO |
628 | EXPORT_SYMBOL(cfg80211_roamed); |
629 | ||
667503dd | 630 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 631 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
632 | { |
633 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
634 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
635 | int i; | |
3d23e349 | 636 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
637 | union iwreq_data wrqu; |
638 | #endif | |
639 | ||
667503dd JB |
640 | ASSERT_WDEV_LOCK(wdev); |
641 | ||
b23aa676 SO |
642 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
643 | return; | |
644 | ||
f7969969 | 645 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
646 | return; |
647 | ||
648 | if (wdev->current_bss) { | |
649 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 650 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
651 | } |
652 | ||
653 | wdev->current_bss = NULL; | |
654 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 655 | wdev->ssid_len = 0; |
b23aa676 | 656 | |
6829c878 | 657 | if (wdev->conn) { |
b6f0b639 JB |
658 | const u8 *bssid; |
659 | int ret; | |
660 | ||
6829c878 JB |
661 | kfree(wdev->conn->ie); |
662 | wdev->conn->ie = NULL; | |
19957bb3 JB |
663 | kfree(wdev->conn); |
664 | wdev->conn = NULL; | |
b6f0b639 JB |
665 | |
666 | /* | |
667 | * If this disconnect was due to a disassoc, we | |
668 | * we might still have an auth BSS around. For | |
669 | * the userspace SME that's currently expected, | |
670 | * but for the kernel SME (nl80211 CONNECT or | |
671 | * wireless extensions) we want to clear up all | |
672 | * state. | |
673 | */ | |
674 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
675 | if (!wdev->auth_bsses[i]) | |
676 | continue; | |
677 | bssid = wdev->auth_bsses[i]->pub.bssid; | |
678 | ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, | |
679 | WLAN_REASON_DEAUTH_LEAVING); | |
680 | WARN(ret, "deauth failed: %d\n", ret); | |
681 | } | |
6829c878 JB |
682 | } |
683 | ||
fffd0934 JB |
684 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
685 | ||
686 | /* | |
687 | * Delete all the keys ... pairwise keys can't really | |
688 | * exist any more anyway, but default keys might. | |
689 | */ | |
690 | if (rdev->ops->del_key) | |
691 | for (i = 0; i < 6; i++) | |
692 | rdev->ops->del_key(wdev->wiphy, dev, i, NULL); | |
b23aa676 | 693 | |
3d23e349 | 694 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
695 | memset(&wrqu, 0, sizeof(wrqu)); |
696 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
697 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 698 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 699 | #endif |
09d989d1 LR |
700 | |
701 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
702 | } |
703 | ||
704 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
705 | u8 *ie, size_t ie_len, gfp_t gfp) | |
706 | { | |
667503dd JB |
707 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
708 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
709 | struct cfg80211_event *ev; | |
710 | unsigned long flags; | |
711 | ||
f7969969 JB |
712 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
713 | ||
667503dd JB |
714 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
715 | if (!ev) | |
716 | return; | |
717 | ||
718 | ev->type = EVENT_DISCONNECTED; | |
719 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
720 | ev->dc.ie_len = ie_len; | |
721 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
722 | ev->dc.reason = reason; | |
723 | ||
724 | spin_lock_irqsave(&wdev->event_lock, flags); | |
725 | list_add_tail(&ev->list, &wdev->event_list); | |
726 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 727 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
728 | } |
729 | EXPORT_SYMBOL(cfg80211_disconnected); | |
730 | ||
667503dd JB |
731 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
732 | struct net_device *dev, | |
fffd0934 | 733 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
734 | struct cfg80211_cached_keys *connkeys, |
735 | const u8 *prev_bssid) | |
b23aa676 | 736 | { |
b23aa676 | 737 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
59bbb6f7 | 738 | struct ieee80211_channel *chan; |
bbac31f4 | 739 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
740 | int err; |
741 | ||
742 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
743 | |
744 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
745 | return -EALREADY; | |
746 | ||
59bbb6f7 JB |
747 | chan = rdev_fixed_channel(rdev, wdev); |
748 | if (chan && chan != connect->channel) | |
749 | return -EBUSY; | |
750 | ||
fffd0934 JB |
751 | if (WARN_ON(wdev->connect_keys)) { |
752 | kfree(wdev->connect_keys); | |
753 | wdev->connect_keys = NULL; | |
754 | } | |
755 | ||
756 | if (connkeys && connkeys->def >= 0) { | |
757 | int idx; | |
bcba8eae | 758 | u32 cipher; |
fffd0934 JB |
759 | |
760 | idx = connkeys->def; | |
bcba8eae | 761 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 762 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
763 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
764 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
765 | connect->key_idx = idx; |
766 | connect->key = connkeys->params[idx].key; | |
767 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
768 | |
769 | /* | |
770 | * If ciphers are not set (e.g. when going through | |
771 | * iwconfig), we have to set them appropriately here. | |
772 | */ | |
773 | if (connect->crypto.cipher_group == 0) | |
774 | connect->crypto.cipher_group = cipher; | |
775 | ||
776 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
777 | connect->crypto.n_ciphers_pairwise = 1; | |
778 | connect->crypto.ciphers_pairwise[0] = cipher; | |
779 | } | |
fffd0934 JB |
780 | } |
781 | } | |
782 | ||
b23aa676 | 783 | if (!rdev->ops->connect) { |
6829c878 JB |
784 | if (!rdev->ops->auth || !rdev->ops->assoc) |
785 | return -EOPNOTSUPP; | |
786 | ||
19957bb3 JB |
787 | if (WARN_ON(wdev->conn)) |
788 | return -EINPROGRESS; | |
789 | ||
790 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
791 | if (!wdev->conn) | |
792 | return -ENOMEM; | |
6829c878 JB |
793 | |
794 | /* | |
795 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
796 | */ | |
797 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
798 | if (connect->bssid) { | |
799 | wdev->conn->params.bssid = wdev->conn->bssid; | |
800 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
801 | } | |
802 | ||
803 | if (connect->ie) { | |
804 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
805 | GFP_KERNEL); | |
806 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
807 | if (!wdev->conn->ie) { |
808 | kfree(wdev->conn); | |
809 | wdev->conn = NULL; | |
6829c878 | 810 | return -ENOMEM; |
19957bb3 | 811 | } |
6829c878 JB |
812 | } |
813 | ||
814 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
815 | wdev->conn->auto_auth = true; | |
816 | /* start with open system ... should mostly work */ | |
817 | wdev->conn->params.auth_type = | |
818 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
819 | } else { | |
820 | wdev->conn->auto_auth = false; | |
821 | } | |
822 | ||
823 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
824 | wdev->ssid_len = connect->ssid_len; | |
825 | wdev->conn->params.ssid = wdev->ssid; | |
826 | wdev->conn->params.ssid_len = connect->ssid_len; | |
827 | ||
8bb89485 JB |
828 | /* see if we have the bss already */ |
829 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
830 | |
831 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 832 | wdev->connect_keys = connkeys; |
6829c878 | 833 | |
f401a6f7 JB |
834 | if (prev_bssid) { |
835 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
836 | wdev->conn->prev_bssid_valid = true; | |
837 | } | |
838 | ||
bbac31f4 JB |
839 | /* we're good if we have a matching bss struct */ |
840 | if (bss) { | |
6829c878 JB |
841 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
842 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 843 | cfg80211_put_bss(bss); |
6829c878 JB |
844 | } else { |
845 | /* otherwise we'll need to scan for the AP first */ | |
846 | err = cfg80211_conn_scan(wdev); | |
847 | /* | |
848 | * If we can't scan right now, then we need to scan again | |
849 | * after the current scan finished, since the parameters | |
850 | * changed (unless we find a good AP anyway). | |
851 | */ | |
852 | if (err == -EBUSY) { | |
853 | err = 0; | |
854 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
855 | } | |
856 | } | |
19957bb3 | 857 | if (err) { |
415ad1ef | 858 | kfree(wdev->conn->ie); |
19957bb3 JB |
859 | kfree(wdev->conn); |
860 | wdev->conn = NULL; | |
6829c878 | 861 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 862 | wdev->connect_keys = NULL; |
8dadadb7 | 863 | wdev->ssid_len = 0; |
19957bb3 | 864 | } |
6829c878 JB |
865 | |
866 | return err; | |
b23aa676 SO |
867 | } else { |
868 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 869 | wdev->connect_keys = connkeys; |
b23aa676 SO |
870 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
871 | if (err) { | |
fffd0934 | 872 | wdev->connect_keys = NULL; |
b23aa676 SO |
873 | wdev->sme_state = CFG80211_SME_IDLE; |
874 | return err; | |
875 | } | |
b23aa676 | 876 | |
6829c878 JB |
877 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
878 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 879 | |
6829c878 JB |
880 | return 0; |
881 | } | |
b23aa676 SO |
882 | } |
883 | ||
667503dd JB |
884 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
885 | struct net_device *dev, | |
fffd0934 JB |
886 | struct cfg80211_connect_params *connect, |
887 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
888 | { |
889 | int err; | |
890 | ||
59bbb6f7 | 891 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 892 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 893 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 894 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 895 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
896 | |
897 | return err; | |
898 | } | |
899 | ||
900 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
901 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 902 | { |
6829c878 | 903 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
904 | int err; |
905 | ||
667503dd JB |
906 | ASSERT_WDEV_LOCK(wdev); |
907 | ||
6829c878 JB |
908 | if (wdev->sme_state == CFG80211_SME_IDLE) |
909 | return -EINVAL; | |
910 | ||
fffd0934 JB |
911 | kfree(wdev->connect_keys); |
912 | wdev->connect_keys = NULL; | |
913 | ||
b23aa676 | 914 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
915 | if (!rdev->ops->deauth) |
916 | return -EOPNOTSUPP; | |
6829c878 | 917 | |
19957bb3 JB |
918 | /* was it connected by userspace SME? */ |
919 | if (!wdev->conn) { | |
920 | cfg80211_mlme_down(rdev, dev); | |
921 | return 0; | |
922 | } | |
6829c878 JB |
923 | |
924 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
925 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
926 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
927 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 928 | kfree(wdev->conn->ie); |
19957bb3 JB |
929 | kfree(wdev->conn); |
930 | wdev->conn = NULL; | |
8dadadb7 | 931 | wdev->ssid_len = 0; |
6829c878 JB |
932 | return 0; |
933 | } | |
934 | ||
6829c878 | 935 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
936 | err = __cfg80211_mlme_deauth(rdev, dev, |
937 | wdev->conn->params.bssid, | |
938 | NULL, 0, reason); | |
6829c878 JB |
939 | if (err) |
940 | return err; | |
b23aa676 SO |
941 | } else { |
942 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); | |
943 | if (err) | |
944 | return err; | |
945 | } | |
946 | ||
6829c878 | 947 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 948 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 949 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
950 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
951 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 952 | wextev, NULL); |
b23aa676 SO |
953 | |
954 | return 0; | |
955 | } | |
19957bb3 | 956 | |
667503dd JB |
957 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
958 | struct net_device *dev, | |
959 | u16 reason, bool wextev) | |
960 | { | |
961 | int err; | |
962 | ||
963 | wdev_lock(dev->ieee80211_ptr); | |
964 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
965 | wdev_unlock(dev->ieee80211_ptr); | |
966 | ||
967 | return err; | |
968 | } | |
969 | ||
19957bb3 JB |
970 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
971 | { | |
972 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
973 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
974 | u8 bssid[ETH_ALEN]; | |
975 | ||
667503dd JB |
976 | ASSERT_WDEV_LOCK(wdev); |
977 | ||
19957bb3 JB |
978 | if (!wdev->conn) |
979 | return; | |
980 | ||
981 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
982 | return; | |
983 | ||
984 | /* | |
985 | * Ok, so the association was made by this SME -- we don't | |
986 | * want it any more so deauthenticate too. | |
987 | */ | |
988 | ||
989 | if (!wdev->auth_bsses[idx]) | |
990 | return; | |
991 | ||
992 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); | |
ec3f1490 JB |
993 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
994 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING)) { | |
19957bb3 JB |
995 | /* whatever -- assume gone anyway */ |
996 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); | |
997 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); | |
998 | wdev->auth_bsses[idx] = NULL; | |
999 | } | |
1000 | } |