Commit | Line | Data |
---|---|---|
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 | ||
20925fee | 38 | static bool cfg80211_is_all_idle(void) |
09d989d1 LR |
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, | |
d5cdfacb | 174 | params->key_idx, false); |
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 | 188 | NULL, 0, |
d5cdfacb JM |
189 | WLAN_REASON_DEAUTH_LEAVING, |
190 | false); | |
19957bb3 | 191 | return err; |
7d930bc3 JB |
192 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
193 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
194 | NULL, 0, | |
d5cdfacb | 195 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
196 | /* return an error so that we call __cfg80211_connect_result() */ |
197 | return -EINVAL; | |
6829c878 JB |
198 | default: |
199 | return 0; | |
200 | } | |
201 | } | |
202 | ||
203 | void cfg80211_conn_work(struct work_struct *work) | |
204 | { | |
79c97e97 | 205 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
206 | container_of(work, struct cfg80211_registered_device, conn_work); |
207 | struct wireless_dev *wdev; | |
7400f42e | 208 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
209 | |
210 | rtnl_lock(); | |
79c97e97 JB |
211 | cfg80211_lock_rdev(rdev); |
212 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 213 | |
79c97e97 | 214 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
667503dd JB |
215 | wdev_lock(wdev); |
216 | if (!netif_running(wdev->netdev)) { | |
217 | wdev_unlock(wdev); | |
6829c878 | 218 | continue; |
667503dd JB |
219 | } |
220 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
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 | } | |
6829c878 | 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); |
667503dd | 234 | wdev_unlock(wdev); |
6829c878 JB |
235 | } |
236 | ||
79c97e97 JB |
237 | mutex_unlock(&rdev->devlist_mtx); |
238 | cfg80211_unlock_rdev(rdev); | |
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 | ||
6829c878 JB |
279 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
280 | return; | |
281 | ||
d4b1a687 | 282 | if (!wdev->conn) |
6829c878 JB |
283 | return; |
284 | ||
285 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
286 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
287 | return; | |
288 | ||
bbac31f4 JB |
289 | bss = cfg80211_get_conn_bss(wdev); |
290 | if (bss) { | |
291 | cfg80211_put_bss(bss); | |
292 | } else { | |
6829c878 JB |
293 | /* not found */ |
294 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 295 | schedule_work(&rdev->conn_work); |
6829c878 | 296 | else |
667503dd JB |
297 | __cfg80211_connect_result( |
298 | wdev->netdev, | |
299 | wdev->conn->params.bssid, | |
300 | NULL, 0, NULL, 0, | |
301 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 302 | false, NULL); |
6829c878 JB |
303 | } |
304 | } | |
305 | ||
667503dd JB |
306 | void cfg80211_sme_scan_done(struct net_device *dev) |
307 | { | |
308 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
309 | ||
59bbb6f7 | 310 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
311 | wdev_lock(wdev); |
312 | __cfg80211_sme_scan_done(dev); | |
313 | wdev_unlock(wdev); | |
59bbb6f7 | 314 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
315 | } |
316 | ||
317 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
318 | const u8 *buf, size_t len) | |
6829c878 JB |
319 | { |
320 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
321 | struct wiphy *wiphy = wdev->wiphy; | |
322 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
323 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
324 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
325 | ||
667503dd JB |
326 | ASSERT_WDEV_LOCK(wdev); |
327 | ||
6829c878 JB |
328 | /* should only RX auth frames when connecting */ |
329 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
330 | return; | |
331 | ||
332 | if (WARN_ON(!wdev->conn)) | |
333 | return; | |
334 | ||
335 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
336 | wdev->conn->auto_auth && | |
337 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
338 | /* select automatically between only open, shared, leap */ | |
339 | switch (wdev->conn->params.auth_type) { | |
340 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
341 | if (wdev->connect_keys) |
342 | wdev->conn->params.auth_type = | |
343 | NL80211_AUTHTYPE_SHARED_KEY; | |
344 | else | |
345 | wdev->conn->params.auth_type = | |
346 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
347 | break; |
348 | case NL80211_AUTHTYPE_SHARED_KEY: | |
349 | wdev->conn->params.auth_type = | |
350 | NL80211_AUTHTYPE_NETWORK_EAP; | |
351 | break; | |
352 | default: | |
353 | /* huh? */ | |
354 | wdev->conn->params.auth_type = | |
355 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
356 | break; | |
357 | } | |
358 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
359 | schedule_work(&rdev->conn_work); | |
19957bb3 | 360 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 361 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 362 | status_code, false, NULL); |
19957bb3 | 363 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
364 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
365 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
366 | schedule_work(&rdev->conn_work); | |
367 | } | |
368 | } | |
b23aa676 | 369 | |
f401a6f7 JB |
370 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
371 | { | |
372 | struct wiphy *wiphy = wdev->wiphy; | |
373 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
374 | ||
375 | if (WARN_ON(!wdev->conn)) | |
376 | return false; | |
377 | ||
378 | if (!wdev->conn->prev_bssid_valid) | |
379 | return false; | |
380 | ||
381 | /* | |
382 | * Some stupid APs don't accept reassoc, so we | |
383 | * need to fall back to trying regular assoc. | |
384 | */ | |
385 | wdev->conn->prev_bssid_valid = false; | |
386 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
387 | schedule_work(&rdev->conn_work); | |
388 | ||
389 | return true; | |
390 | } | |
391 | ||
7d930bc3 JB |
392 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
393 | { | |
394 | struct wiphy *wiphy = wdev->wiphy; | |
395 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
396 | ||
397 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
398 | schedule_work(&rdev->conn_work); | |
399 | } | |
400 | ||
667503dd JB |
401 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
402 | const u8 *req_ie, size_t req_ie_len, | |
403 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
404 | u16 status, bool wextev, |
405 | struct cfg80211_bss *bss) | |
b23aa676 SO |
406 | { |
407 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8b19e6ca | 408 | u8 *country_ie; |
3d23e349 | 409 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
410 | union iwreq_data wrqu; |
411 | #endif | |
412 | ||
667503dd JB |
413 | ASSERT_WDEV_LOCK(wdev); |
414 | ||
074ac8df JB |
415 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
416 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
417 | return; |
418 | ||
f7969969 | 419 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
420 | return; |
421 | ||
422 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 423 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
424 | resp_ie, resp_ie_len, |
425 | status, GFP_KERNEL); | |
e45cd82a | 426 | |
3d23e349 | 427 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
428 | if (wextev) { |
429 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
430 | memset(&wrqu, 0, sizeof(wrqu)); | |
431 | wrqu.data.length = req_ie_len; | |
3409ff77 | 432 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
433 | } |
434 | ||
435 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
436 | memset(&wrqu, 0, sizeof(wrqu)); | |
437 | wrqu.data.length = resp_ie_len; | |
438 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
439 | } | |
440 | ||
441 | memset(&wrqu, 0, sizeof(wrqu)); | |
442 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 443 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 444 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
445 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
446 | wdev->wext.prev_bssid_valid = true; | |
447 | } | |
e45cd82a JB |
448 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
449 | } | |
450 | #endif | |
451 | ||
df7fc0f9 JB |
452 | if (wdev->current_bss) { |
453 | cfg80211_unhold_bss(wdev->current_bss); | |
454 | cfg80211_put_bss(&wdev->current_bss->pub); | |
455 | wdev->current_bss = NULL; | |
456 | } | |
457 | ||
19957bb3 JB |
458 | if (wdev->conn) |
459 | wdev->conn->state = CFG80211_CONN_IDLE; | |
460 | ||
fffd0934 | 461 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 462 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
463 | if (wdev->conn) |
464 | kfree(wdev->conn->ie); | |
19957bb3 JB |
465 | kfree(wdev->conn); |
466 | wdev->conn = NULL; | |
fffd0934 JB |
467 | kfree(wdev->connect_keys); |
468 | wdev->connect_keys = NULL; | |
8dadadb7 | 469 | wdev->ssid_len = 0; |
fffd0934 | 470 | return; |
b23aa676 | 471 | } |
fffd0934 | 472 | |
df7fc0f9 | 473 | if (!bss) |
ed9d0102 JM |
474 | bss = cfg80211_get_bss(wdev->wiphy, |
475 | wdev->conn ? wdev->conn->params.channel : | |
476 | NULL, | |
477 | bssid, | |
df7fc0f9 JB |
478 | wdev->ssid, wdev->ssid_len, |
479 | WLAN_CAPABILITY_ESS, | |
480 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
481 | |
482 | if (WARN_ON(!bss)) | |
483 | return; | |
484 | ||
485 | cfg80211_hold_bss(bss_from_pub(bss)); | |
486 | wdev->current_bss = bss_from_pub(bss); | |
487 | ||
fffd0934 JB |
488 | wdev->sme_state = CFG80211_SME_CONNECTED; |
489 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca LR |
490 | |
491 | country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
492 | ||
493 | if (!country_ie) | |
494 | return; | |
495 | ||
496 | /* | |
497 | * ieee80211_bss_get_ie() ensures we can access: | |
498 | * - country_ie + 2, the start of the country ie data, and | |
499 | * - and country_ie[1] which is the IE length | |
500 | */ | |
501 | regulatory_hint_11d(wdev->wiphy, | |
84920e3e | 502 | bss->channel->band, |
8b19e6ca LR |
503 | country_ie + 2, |
504 | country_ie[1]); | |
b23aa676 | 505 | } |
f2129354 JB |
506 | |
507 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
508 | const u8 *req_ie, size_t req_ie_len, | |
509 | const u8 *resp_ie, size_t resp_ie_len, | |
510 | u16 status, gfp_t gfp) | |
511 | { | |
667503dd JB |
512 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
513 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
514 | struct cfg80211_event *ev; | |
515 | unsigned long flags; | |
516 | ||
f7969969 JB |
517 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
518 | ||
667503dd JB |
519 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
520 | if (!ev) | |
521 | return; | |
522 | ||
523 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
524 | if (bssid) |
525 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
526 | if (req_ie_len) { |
527 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
528 | ev->cr.req_ie_len = req_ie_len; | |
529 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
530 | } | |
531 | if (resp_ie_len) { | |
532 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
533 | ev->cr.resp_ie_len = resp_ie_len; | |
534 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
535 | } | |
667503dd JB |
536 | ev->cr.status = status; |
537 | ||
538 | spin_lock_irqsave(&wdev->event_lock, flags); | |
539 | list_add_tail(&ev->list, &wdev->event_list); | |
540 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 541 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 542 | } |
b23aa676 SO |
543 | EXPORT_SYMBOL(cfg80211_connect_result); |
544 | ||
ed9d0102 JM |
545 | void __cfg80211_roamed(struct wireless_dev *wdev, |
546 | struct ieee80211_channel *channel, | |
547 | const u8 *bssid, | |
667503dd JB |
548 | const u8 *req_ie, size_t req_ie_len, |
549 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 550 | { |
b23aa676 | 551 | struct cfg80211_bss *bss; |
3d23e349 | 552 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
553 | union iwreq_data wrqu; |
554 | #endif | |
555 | ||
667503dd JB |
556 | ASSERT_WDEV_LOCK(wdev); |
557 | ||
074ac8df JB |
558 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
559 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
560 | return; |
561 | ||
f7969969 | 562 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
563 | return; |
564 | ||
565 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
566 | if (WARN_ON(!wdev->current_bss)) { | |
567 | return; | |
568 | } | |
569 | ||
570 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 571 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
572 | wdev->current_bss = NULL; |
573 | ||
ed9d0102 | 574 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, |
b23aa676 SO |
575 | wdev->ssid, wdev->ssid_len, |
576 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
577 | ||
578 | if (WARN_ON(!bss)) | |
579 | return; | |
580 | ||
19957bb3 JB |
581 | cfg80211_hold_bss(bss_from_pub(bss)); |
582 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 583 | |
667503dd JB |
584 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
585 | req_ie, req_ie_len, resp_ie, resp_ie_len, | |
586 | GFP_KERNEL); | |
b23aa676 | 587 | |
3d23e349 | 588 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
589 | if (req_ie) { |
590 | memset(&wrqu, 0, sizeof(wrqu)); | |
591 | wrqu.data.length = req_ie_len; | |
3409ff77 | 592 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 593 | &wrqu, req_ie); |
b23aa676 SO |
594 | } |
595 | ||
596 | if (resp_ie) { | |
597 | memset(&wrqu, 0, sizeof(wrqu)); | |
598 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
599 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
600 | &wrqu, resp_ie); | |
b23aa676 SO |
601 | } |
602 | ||
603 | memset(&wrqu, 0, sizeof(wrqu)); | |
604 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
605 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
f401a6f7 JB |
606 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
607 | wdev->wext.prev_bssid_valid = true; | |
667503dd | 608 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 SO |
609 | #endif |
610 | } | |
667503dd | 611 | |
ed9d0102 JM |
612 | void cfg80211_roamed(struct net_device *dev, |
613 | struct ieee80211_channel *channel, | |
614 | const u8 *bssid, | |
667503dd JB |
615 | const u8 *req_ie, size_t req_ie_len, |
616 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
617 | { | |
618 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
619 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
620 | struct cfg80211_event *ev; | |
621 | unsigned long flags; | |
622 | ||
f7969969 JB |
623 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
624 | ||
667503dd JB |
625 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
626 | if (!ev) | |
627 | return; | |
628 | ||
629 | ev->type = EVENT_ROAMED; | |
ed9d0102 | 630 | ev->rm.channel = channel; |
667503dd JB |
631 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); |
632 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); | |
633 | ev->rm.req_ie_len = req_ie_len; | |
634 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
635 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
636 | ev->rm.resp_ie_len = resp_ie_len; | |
637 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
638 | ||
639 | spin_lock_irqsave(&wdev->event_lock, flags); | |
640 | list_add_tail(&ev->list, &wdev->event_list); | |
641 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 642 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 643 | } |
b23aa676 SO |
644 | EXPORT_SYMBOL(cfg80211_roamed); |
645 | ||
667503dd | 646 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 647 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
648 | { |
649 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
650 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
651 | int i; | |
3d23e349 | 652 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
653 | union iwreq_data wrqu; |
654 | #endif | |
655 | ||
667503dd JB |
656 | ASSERT_WDEV_LOCK(wdev); |
657 | ||
074ac8df JB |
658 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
659 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
660 | return; |
661 | ||
f7969969 | 662 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
663 | return; |
664 | ||
665 | if (wdev->current_bss) { | |
666 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 667 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
668 | } |
669 | ||
670 | wdev->current_bss = NULL; | |
671 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 672 | wdev->ssid_len = 0; |
b23aa676 | 673 | |
6829c878 | 674 | if (wdev->conn) { |
b6f0b639 JB |
675 | const u8 *bssid; |
676 | int ret; | |
677 | ||
6829c878 JB |
678 | kfree(wdev->conn->ie); |
679 | wdev->conn->ie = NULL; | |
19957bb3 JB |
680 | kfree(wdev->conn); |
681 | wdev->conn = NULL; | |
b6f0b639 JB |
682 | |
683 | /* | |
684 | * If this disconnect was due to a disassoc, we | |
685 | * we might still have an auth BSS around. For | |
686 | * the userspace SME that's currently expected, | |
687 | * but for the kernel SME (nl80211 CONNECT or | |
688 | * wireless extensions) we want to clear up all | |
689 | * state. | |
690 | */ | |
691 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
692 | if (!wdev->auth_bsses[i]) | |
693 | continue; | |
694 | bssid = wdev->auth_bsses[i]->pub.bssid; | |
695 | ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, | |
d5cdfacb JM |
696 | WLAN_REASON_DEAUTH_LEAVING, |
697 | false); | |
b6f0b639 JB |
698 | WARN(ret, "deauth failed: %d\n", ret); |
699 | } | |
6829c878 JB |
700 | } |
701 | ||
fffd0934 JB |
702 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
703 | ||
704 | /* | |
705 | * Delete all the keys ... pairwise keys can't really | |
706 | * exist any more anyway, but default keys might. | |
707 | */ | |
708 | if (rdev->ops->del_key) | |
709 | for (i = 0; i < 6; i++) | |
e31b8213 | 710 | rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); |
b23aa676 | 711 | |
3d23e349 | 712 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
713 | memset(&wrqu, 0, sizeof(wrqu)); |
714 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
715 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 716 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 717 | #endif |
09d989d1 LR |
718 | |
719 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
720 | } |
721 | ||
722 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
723 | u8 *ie, size_t ie_len, gfp_t gfp) | |
724 | { | |
667503dd JB |
725 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
726 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
727 | struct cfg80211_event *ev; | |
728 | unsigned long flags; | |
729 | ||
f7969969 JB |
730 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
731 | ||
667503dd JB |
732 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
733 | if (!ev) | |
734 | return; | |
735 | ||
736 | ev->type = EVENT_DISCONNECTED; | |
737 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
738 | ev->dc.ie_len = ie_len; | |
739 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
740 | ev->dc.reason = reason; | |
741 | ||
742 | spin_lock_irqsave(&wdev->event_lock, flags); | |
743 | list_add_tail(&ev->list, &wdev->event_list); | |
744 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 745 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
746 | } |
747 | EXPORT_SYMBOL(cfg80211_disconnected); | |
748 | ||
667503dd JB |
749 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
750 | struct net_device *dev, | |
fffd0934 | 751 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
752 | struct cfg80211_cached_keys *connkeys, |
753 | const u8 *prev_bssid) | |
b23aa676 | 754 | { |
b23aa676 | 755 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 756 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
757 | int err; |
758 | ||
759 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
760 | |
761 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
762 | return -EALREADY; | |
763 | ||
fffd0934 JB |
764 | if (WARN_ON(wdev->connect_keys)) { |
765 | kfree(wdev->connect_keys); | |
766 | wdev->connect_keys = NULL; | |
767 | } | |
768 | ||
769 | if (connkeys && connkeys->def >= 0) { | |
770 | int idx; | |
bcba8eae | 771 | u32 cipher; |
fffd0934 JB |
772 | |
773 | idx = connkeys->def; | |
bcba8eae | 774 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 775 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
776 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
777 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
778 | connect->key_idx = idx; |
779 | connect->key = connkeys->params[idx].key; | |
780 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
781 | |
782 | /* | |
783 | * If ciphers are not set (e.g. when going through | |
784 | * iwconfig), we have to set them appropriately here. | |
785 | */ | |
786 | if (connect->crypto.cipher_group == 0) | |
787 | connect->crypto.cipher_group = cipher; | |
788 | ||
789 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
790 | connect->crypto.n_ciphers_pairwise = 1; | |
791 | connect->crypto.ciphers_pairwise[0] = cipher; | |
792 | } | |
fffd0934 JB |
793 | } |
794 | } | |
795 | ||
b23aa676 | 796 | if (!rdev->ops->connect) { |
6829c878 JB |
797 | if (!rdev->ops->auth || !rdev->ops->assoc) |
798 | return -EOPNOTSUPP; | |
799 | ||
19957bb3 JB |
800 | if (WARN_ON(wdev->conn)) |
801 | return -EINPROGRESS; | |
802 | ||
803 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
804 | if (!wdev->conn) | |
805 | return -ENOMEM; | |
6829c878 JB |
806 | |
807 | /* | |
808 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
809 | */ | |
810 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
811 | if (connect->bssid) { | |
812 | wdev->conn->params.bssid = wdev->conn->bssid; | |
813 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
814 | } | |
815 | ||
816 | if (connect->ie) { | |
817 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
818 | GFP_KERNEL); | |
819 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
820 | if (!wdev->conn->ie) { |
821 | kfree(wdev->conn); | |
822 | wdev->conn = NULL; | |
6829c878 | 823 | return -ENOMEM; |
19957bb3 | 824 | } |
6829c878 JB |
825 | } |
826 | ||
827 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
828 | wdev->conn->auto_auth = true; | |
829 | /* start with open system ... should mostly work */ | |
830 | wdev->conn->params.auth_type = | |
831 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
832 | } else { | |
833 | wdev->conn->auto_auth = false; | |
834 | } | |
835 | ||
836 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
837 | wdev->ssid_len = connect->ssid_len; | |
838 | wdev->conn->params.ssid = wdev->ssid; | |
839 | wdev->conn->params.ssid_len = connect->ssid_len; | |
840 | ||
8bb89485 JB |
841 | /* see if we have the bss already */ |
842 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
843 | |
844 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 845 | wdev->connect_keys = connkeys; |
6829c878 | 846 | |
f401a6f7 JB |
847 | if (prev_bssid) { |
848 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
849 | wdev->conn->prev_bssid_valid = true; | |
850 | } | |
851 | ||
bbac31f4 JB |
852 | /* we're good if we have a matching bss struct */ |
853 | if (bss) { | |
6829c878 JB |
854 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
855 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 856 | cfg80211_put_bss(bss); |
6829c878 JB |
857 | } else { |
858 | /* otherwise we'll need to scan for the AP first */ | |
859 | err = cfg80211_conn_scan(wdev); | |
860 | /* | |
861 | * If we can't scan right now, then we need to scan again | |
862 | * after the current scan finished, since the parameters | |
863 | * changed (unless we find a good AP anyway). | |
864 | */ | |
865 | if (err == -EBUSY) { | |
866 | err = 0; | |
867 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
868 | } | |
869 | } | |
19957bb3 | 870 | if (err) { |
415ad1ef | 871 | kfree(wdev->conn->ie); |
19957bb3 JB |
872 | kfree(wdev->conn); |
873 | wdev->conn = NULL; | |
6829c878 | 874 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 875 | wdev->connect_keys = NULL; |
8dadadb7 | 876 | wdev->ssid_len = 0; |
19957bb3 | 877 | } |
6829c878 JB |
878 | |
879 | return err; | |
b23aa676 SO |
880 | } else { |
881 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 882 | wdev->connect_keys = connkeys; |
b23aa676 SO |
883 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
884 | if (err) { | |
fffd0934 | 885 | wdev->connect_keys = NULL; |
b23aa676 SO |
886 | wdev->sme_state = CFG80211_SME_IDLE; |
887 | return err; | |
888 | } | |
b23aa676 | 889 | |
6829c878 JB |
890 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
891 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 892 | |
6829c878 JB |
893 | return 0; |
894 | } | |
b23aa676 SO |
895 | } |
896 | ||
667503dd JB |
897 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
898 | struct net_device *dev, | |
fffd0934 JB |
899 | struct cfg80211_connect_params *connect, |
900 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
901 | { |
902 | int err; | |
903 | ||
59bbb6f7 | 904 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 905 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 906 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 907 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 908 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
909 | |
910 | return err; | |
911 | } | |
912 | ||
913 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
914 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 915 | { |
6829c878 | 916 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
917 | int err; |
918 | ||
667503dd JB |
919 | ASSERT_WDEV_LOCK(wdev); |
920 | ||
6829c878 JB |
921 | if (wdev->sme_state == CFG80211_SME_IDLE) |
922 | return -EINVAL; | |
923 | ||
fffd0934 JB |
924 | kfree(wdev->connect_keys); |
925 | wdev->connect_keys = NULL; | |
926 | ||
b23aa676 | 927 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
928 | if (!rdev->ops->deauth) |
929 | return -EOPNOTSUPP; | |
6829c878 | 930 | |
19957bb3 JB |
931 | /* was it connected by userspace SME? */ |
932 | if (!wdev->conn) { | |
933 | cfg80211_mlme_down(rdev, dev); | |
934 | return 0; | |
935 | } | |
6829c878 JB |
936 | |
937 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
938 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
939 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
940 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 941 | kfree(wdev->conn->ie); |
19957bb3 JB |
942 | kfree(wdev->conn); |
943 | wdev->conn = NULL; | |
8dadadb7 | 944 | wdev->ssid_len = 0; |
6829c878 JB |
945 | return 0; |
946 | } | |
947 | ||
6829c878 | 948 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
949 | err = __cfg80211_mlme_deauth(rdev, dev, |
950 | wdev->conn->params.bssid, | |
d5cdfacb | 951 | NULL, 0, reason, false); |
6829c878 JB |
952 | if (err) |
953 | return err; | |
b23aa676 SO |
954 | } else { |
955 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); | |
956 | if (err) | |
957 | return err; | |
958 | } | |
959 | ||
6829c878 | 960 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 961 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 962 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
963 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
964 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 965 | wextev, NULL); |
b23aa676 SO |
966 | |
967 | return 0; | |
968 | } | |
19957bb3 | 969 | |
667503dd JB |
970 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
971 | struct net_device *dev, | |
972 | u16 reason, bool wextev) | |
973 | { | |
974 | int err; | |
975 | ||
976 | wdev_lock(dev->ieee80211_ptr); | |
977 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
978 | wdev_unlock(dev->ieee80211_ptr); | |
979 | ||
980 | return err; | |
981 | } | |
982 | ||
19957bb3 JB |
983 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
984 | { | |
985 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
986 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
987 | u8 bssid[ETH_ALEN]; | |
988 | ||
667503dd JB |
989 | ASSERT_WDEV_LOCK(wdev); |
990 | ||
19957bb3 JB |
991 | if (!wdev->conn) |
992 | return; | |
993 | ||
994 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
995 | return; | |
996 | ||
997 | /* | |
998 | * Ok, so the association was made by this SME -- we don't | |
999 | * want it any more so deauthenticate too. | |
1000 | */ | |
1001 | ||
1002 | if (!wdev->auth_bsses[idx]) | |
1003 | return; | |
1004 | ||
1005 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); | |
ec3f1490 | 1006 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
d5cdfacb JM |
1007 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING, |
1008 | false)) { | |
19957bb3 JB |
1009 | /* whatever -- assume gone anyway */ |
1010 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); | |
1011 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); | |
1012 | wdev->auth_bsses[idx] = NULL; | |
1013 | } | |
1014 | } |