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]; | |
3965ac00 RM |
121 | request->rates[band] = |
122 | (1 << wdev->wiphy->bands[band]->n_bitrates) - 1; | |
6829c878 JB |
123 | } |
124 | } | |
125 | request->n_channels = n_channels; | |
5ba63533 | 126 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
127 | request->n_ssids = 1; |
128 | ||
129 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
130 | wdev->conn->params.ssid_len); | |
131 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
132 | ||
463d0183 | 133 | request->dev = wdev->netdev; |
79c97e97 | 134 | request->wiphy = &rdev->wiphy; |
6829c878 | 135 | |
79c97e97 | 136 | rdev->scan_req = request; |
6829c878 | 137 | |
79c97e97 | 138 | err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request); |
6829c878 JB |
139 | if (!err) { |
140 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
79c97e97 | 141 | nl80211_send_scan_start(rdev, wdev->netdev); |
463d0183 | 142 | dev_hold(wdev->netdev); |
6829c878 | 143 | } else { |
79c97e97 | 144 | rdev->scan_req = NULL; |
6829c878 JB |
145 | kfree(request); |
146 | } | |
147 | return err; | |
148 | } | |
149 | ||
150 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
151 | { | |
79c97e97 | 152 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 153 | struct cfg80211_connect_params *params; |
f401a6f7 | 154 | const u8 *prev_bssid = NULL; |
19957bb3 | 155 | int err; |
6829c878 | 156 | |
667503dd JB |
157 | ASSERT_WDEV_LOCK(wdev); |
158 | ||
6829c878 JB |
159 | if (!wdev->conn) |
160 | return 0; | |
161 | ||
19957bb3 JB |
162 | params = &wdev->conn->params; |
163 | ||
6829c878 JB |
164 | switch (wdev->conn->state) { |
165 | case CFG80211_CONN_SCAN_AGAIN: | |
166 | return cfg80211_conn_scan(wdev); | |
167 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 168 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 169 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 170 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
171 | params->channel, params->auth_type, |
172 | params->bssid, | |
173 | params->ssid, params->ssid_len, | |
fffd0934 JB |
174 | NULL, 0, |
175 | params->key, params->key_len, | |
d5cdfacb | 176 | params->key_idx, false); |
6829c878 | 177 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 178 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 179 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
180 | if (wdev->conn->prev_bssid_valid) |
181 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 182 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 183 | params->channel, params->bssid, |
f401a6f7 | 184 | prev_bssid, |
667503dd JB |
185 | params->ssid, params->ssid_len, |
186 | params->ie, params->ie_len, | |
187 | false, ¶ms->crypto); | |
19957bb3 | 188 | if (err) |
79c97e97 | 189 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd | 190 | NULL, 0, |
d5cdfacb JM |
191 | WLAN_REASON_DEAUTH_LEAVING, |
192 | false); | |
19957bb3 | 193 | return err; |
7d930bc3 JB |
194 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
195 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
196 | NULL, 0, | |
d5cdfacb | 197 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
198 | /* return an error so that we call __cfg80211_connect_result() */ |
199 | return -EINVAL; | |
6829c878 JB |
200 | default: |
201 | return 0; | |
202 | } | |
203 | } | |
204 | ||
205 | void cfg80211_conn_work(struct work_struct *work) | |
206 | { | |
79c97e97 | 207 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
208 | container_of(work, struct cfg80211_registered_device, conn_work); |
209 | struct wireless_dev *wdev; | |
7400f42e | 210 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
211 | |
212 | rtnl_lock(); | |
79c97e97 JB |
213 | cfg80211_lock_rdev(rdev); |
214 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 215 | |
79c97e97 | 216 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
667503dd JB |
217 | wdev_lock(wdev); |
218 | if (!netif_running(wdev->netdev)) { | |
219 | wdev_unlock(wdev); | |
6829c878 | 220 | continue; |
667503dd JB |
221 | } |
222 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
223 | wdev_unlock(wdev); | |
6829c878 | 224 | continue; |
667503dd | 225 | } |
7400f42e JB |
226 | if (wdev->conn->params.bssid) { |
227 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
228 | bssid = bssid_buf; | |
229 | } | |
6829c878 | 230 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 231 | __cfg80211_connect_result( |
7d930bc3 | 232 | wdev->netdev, bssid, |
667503dd JB |
233 | NULL, 0, NULL, 0, |
234 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 235 | false, NULL); |
667503dd | 236 | wdev_unlock(wdev); |
6829c878 JB |
237 | } |
238 | ||
79c97e97 JB |
239 | mutex_unlock(&rdev->devlist_mtx); |
240 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
241 | rtnl_unlock(); |
242 | } | |
243 | ||
bbac31f4 | 244 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 245 | { |
79c97e97 | 246 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
247 | struct cfg80211_bss *bss; |
248 | u16 capa = WLAN_CAPABILITY_ESS; | |
249 | ||
667503dd JB |
250 | ASSERT_WDEV_LOCK(wdev); |
251 | ||
6829c878 JB |
252 | if (wdev->conn->params.privacy) |
253 | capa |= WLAN_CAPABILITY_PRIVACY; | |
254 | ||
ed9d0102 JM |
255 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
256 | wdev->conn->params.bssid, | |
6829c878 JB |
257 | wdev->conn->params.ssid, |
258 | wdev->conn->params.ssid_len, | |
259 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
260 | capa); | |
6829c878 | 261 | if (!bss) |
bbac31f4 | 262 | return NULL; |
6829c878 JB |
263 | |
264 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
265 | wdev->conn->params.bssid = wdev->conn->bssid; | |
266 | wdev->conn->params.channel = bss->channel; | |
267 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 268 | schedule_work(&rdev->conn_work); |
6829c878 | 269 | |
bbac31f4 | 270 | return bss; |
6829c878 JB |
271 | } |
272 | ||
667503dd | 273 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
274 | { |
275 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 276 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 277 | struct cfg80211_bss *bss; |
6829c878 | 278 | |
667503dd JB |
279 | ASSERT_WDEV_LOCK(wdev); |
280 | ||
6829c878 JB |
281 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
282 | return; | |
283 | ||
d4b1a687 | 284 | if (!wdev->conn) |
6829c878 JB |
285 | return; |
286 | ||
287 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
288 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
289 | return; | |
290 | ||
bbac31f4 JB |
291 | bss = cfg80211_get_conn_bss(wdev); |
292 | if (bss) { | |
293 | cfg80211_put_bss(bss); | |
294 | } else { | |
6829c878 JB |
295 | /* not found */ |
296 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 297 | schedule_work(&rdev->conn_work); |
6829c878 | 298 | else |
667503dd JB |
299 | __cfg80211_connect_result( |
300 | wdev->netdev, | |
301 | wdev->conn->params.bssid, | |
302 | NULL, 0, NULL, 0, | |
303 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 304 | false, NULL); |
6829c878 JB |
305 | } |
306 | } | |
307 | ||
667503dd JB |
308 | void cfg80211_sme_scan_done(struct net_device *dev) |
309 | { | |
310 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
311 | ||
59bbb6f7 | 312 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
313 | wdev_lock(wdev); |
314 | __cfg80211_sme_scan_done(dev); | |
315 | wdev_unlock(wdev); | |
59bbb6f7 | 316 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
317 | } |
318 | ||
319 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
320 | const u8 *buf, size_t len) | |
6829c878 JB |
321 | { |
322 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
323 | struct wiphy *wiphy = wdev->wiphy; | |
324 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
325 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
326 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
327 | ||
667503dd JB |
328 | ASSERT_WDEV_LOCK(wdev); |
329 | ||
6829c878 JB |
330 | /* should only RX auth frames when connecting */ |
331 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
332 | return; | |
333 | ||
334 | if (WARN_ON(!wdev->conn)) | |
335 | return; | |
336 | ||
337 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
338 | wdev->conn->auto_auth && | |
339 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
340 | /* select automatically between only open, shared, leap */ | |
341 | switch (wdev->conn->params.auth_type) { | |
342 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
343 | if (wdev->connect_keys) |
344 | wdev->conn->params.auth_type = | |
345 | NL80211_AUTHTYPE_SHARED_KEY; | |
346 | else | |
347 | wdev->conn->params.auth_type = | |
348 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
349 | break; |
350 | case NL80211_AUTHTYPE_SHARED_KEY: | |
351 | wdev->conn->params.auth_type = | |
352 | NL80211_AUTHTYPE_NETWORK_EAP; | |
353 | break; | |
354 | default: | |
355 | /* huh? */ | |
356 | wdev->conn->params.auth_type = | |
357 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
358 | break; | |
359 | } | |
360 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
361 | schedule_work(&rdev->conn_work); | |
19957bb3 | 362 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 363 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 364 | status_code, false, NULL); |
19957bb3 | 365 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
366 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
367 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
368 | schedule_work(&rdev->conn_work); | |
369 | } | |
370 | } | |
b23aa676 | 371 | |
f401a6f7 JB |
372 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
373 | { | |
374 | struct wiphy *wiphy = wdev->wiphy; | |
375 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
376 | ||
377 | if (WARN_ON(!wdev->conn)) | |
378 | return false; | |
379 | ||
380 | if (!wdev->conn->prev_bssid_valid) | |
381 | return false; | |
382 | ||
383 | /* | |
384 | * Some stupid APs don't accept reassoc, so we | |
385 | * need to fall back to trying regular assoc. | |
386 | */ | |
387 | wdev->conn->prev_bssid_valid = false; | |
388 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
389 | schedule_work(&rdev->conn_work); | |
390 | ||
391 | return true; | |
392 | } | |
393 | ||
7d930bc3 JB |
394 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
395 | { | |
396 | struct wiphy *wiphy = wdev->wiphy; | |
397 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
398 | ||
399 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
400 | schedule_work(&rdev->conn_work); | |
401 | } | |
402 | ||
667503dd JB |
403 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
404 | const u8 *req_ie, size_t req_ie_len, | |
405 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
406 | u16 status, bool wextev, |
407 | struct cfg80211_bss *bss) | |
b23aa676 SO |
408 | { |
409 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8b19e6ca | 410 | u8 *country_ie; |
3d23e349 | 411 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
412 | union iwreq_data wrqu; |
413 | #endif | |
414 | ||
667503dd JB |
415 | ASSERT_WDEV_LOCK(wdev); |
416 | ||
074ac8df JB |
417 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
418 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
419 | return; |
420 | ||
f7969969 | 421 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
422 | return; |
423 | ||
424 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 425 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
426 | resp_ie, resp_ie_len, |
427 | status, GFP_KERNEL); | |
e45cd82a | 428 | |
3d23e349 | 429 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
430 | if (wextev) { |
431 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
432 | memset(&wrqu, 0, sizeof(wrqu)); | |
433 | wrqu.data.length = req_ie_len; | |
3409ff77 | 434 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
435 | } |
436 | ||
437 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
438 | memset(&wrqu, 0, sizeof(wrqu)); | |
439 | wrqu.data.length = resp_ie_len; | |
440 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
441 | } | |
442 | ||
443 | memset(&wrqu, 0, sizeof(wrqu)); | |
444 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 445 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 446 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
447 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
448 | wdev->wext.prev_bssid_valid = true; | |
449 | } | |
e45cd82a JB |
450 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
451 | } | |
452 | #endif | |
453 | ||
df7fc0f9 JB |
454 | if (wdev->current_bss) { |
455 | cfg80211_unhold_bss(wdev->current_bss); | |
456 | cfg80211_put_bss(&wdev->current_bss->pub); | |
457 | wdev->current_bss = NULL; | |
458 | } | |
459 | ||
19957bb3 JB |
460 | if (wdev->conn) |
461 | wdev->conn->state = CFG80211_CONN_IDLE; | |
462 | ||
fffd0934 | 463 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 464 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
465 | if (wdev->conn) |
466 | kfree(wdev->conn->ie); | |
19957bb3 JB |
467 | kfree(wdev->conn); |
468 | wdev->conn = NULL; | |
fffd0934 JB |
469 | kfree(wdev->connect_keys); |
470 | wdev->connect_keys = NULL; | |
8dadadb7 | 471 | wdev->ssid_len = 0; |
fffd0934 | 472 | return; |
b23aa676 | 473 | } |
fffd0934 | 474 | |
df7fc0f9 | 475 | if (!bss) |
ed9d0102 JM |
476 | bss = cfg80211_get_bss(wdev->wiphy, |
477 | wdev->conn ? wdev->conn->params.channel : | |
478 | NULL, | |
479 | bssid, | |
df7fc0f9 JB |
480 | wdev->ssid, wdev->ssid_len, |
481 | WLAN_CAPABILITY_ESS, | |
482 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
483 | |
484 | if (WARN_ON(!bss)) | |
485 | return; | |
486 | ||
487 | cfg80211_hold_bss(bss_from_pub(bss)); | |
488 | wdev->current_bss = bss_from_pub(bss); | |
489 | ||
fffd0934 JB |
490 | wdev->sme_state = CFG80211_SME_CONNECTED; |
491 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca LR |
492 | |
493 | country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
494 | ||
495 | if (!country_ie) | |
496 | return; | |
497 | ||
498 | /* | |
499 | * ieee80211_bss_get_ie() ensures we can access: | |
500 | * - country_ie + 2, the start of the country ie data, and | |
501 | * - and country_ie[1] which is the IE length | |
502 | */ | |
503 | regulatory_hint_11d(wdev->wiphy, | |
84920e3e | 504 | bss->channel->band, |
8b19e6ca LR |
505 | country_ie + 2, |
506 | country_ie[1]); | |
b23aa676 | 507 | } |
f2129354 JB |
508 | |
509 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
510 | const u8 *req_ie, size_t req_ie_len, | |
511 | const u8 *resp_ie, size_t resp_ie_len, | |
512 | u16 status, gfp_t gfp) | |
513 | { | |
667503dd JB |
514 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
515 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
516 | struct cfg80211_event *ev; | |
517 | unsigned long flags; | |
518 | ||
f7969969 JB |
519 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
520 | ||
667503dd JB |
521 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
522 | if (!ev) | |
523 | return; | |
524 | ||
525 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
526 | if (bssid) |
527 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
528 | if (req_ie_len) { |
529 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
530 | ev->cr.req_ie_len = req_ie_len; | |
531 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
532 | } | |
533 | if (resp_ie_len) { | |
534 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
535 | ev->cr.resp_ie_len = resp_ie_len; | |
536 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
537 | } | |
667503dd JB |
538 | ev->cr.status = status; |
539 | ||
540 | spin_lock_irqsave(&wdev->event_lock, flags); | |
541 | list_add_tail(&ev->list, &wdev->event_list); | |
542 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 543 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 544 | } |
b23aa676 SO |
545 | EXPORT_SYMBOL(cfg80211_connect_result); |
546 | ||
ed9d0102 JM |
547 | void __cfg80211_roamed(struct wireless_dev *wdev, |
548 | struct ieee80211_channel *channel, | |
549 | const u8 *bssid, | |
667503dd JB |
550 | const u8 *req_ie, size_t req_ie_len, |
551 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 552 | { |
b23aa676 | 553 | struct cfg80211_bss *bss; |
3d23e349 | 554 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
555 | union iwreq_data wrqu; |
556 | #endif | |
557 | ||
667503dd JB |
558 | ASSERT_WDEV_LOCK(wdev); |
559 | ||
074ac8df JB |
560 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
561 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
562 | return; |
563 | ||
f7969969 | 564 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
565 | return; |
566 | ||
567 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
568 | if (WARN_ON(!wdev->current_bss)) { | |
569 | return; | |
570 | } | |
571 | ||
572 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 573 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
574 | wdev->current_bss = NULL; |
575 | ||
ed9d0102 | 576 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, |
b23aa676 SO |
577 | wdev->ssid, wdev->ssid_len, |
578 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
579 | ||
580 | if (WARN_ON(!bss)) | |
581 | return; | |
582 | ||
19957bb3 JB |
583 | cfg80211_hold_bss(bss_from_pub(bss)); |
584 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 585 | |
667503dd JB |
586 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
587 | req_ie, req_ie_len, resp_ie, resp_ie_len, | |
588 | GFP_KERNEL); | |
b23aa676 | 589 | |
3d23e349 | 590 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
591 | if (req_ie) { |
592 | memset(&wrqu, 0, sizeof(wrqu)); | |
593 | wrqu.data.length = req_ie_len; | |
3409ff77 | 594 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 595 | &wrqu, req_ie); |
b23aa676 SO |
596 | } |
597 | ||
598 | if (resp_ie) { | |
599 | memset(&wrqu, 0, sizeof(wrqu)); | |
600 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
601 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
602 | &wrqu, resp_ie); | |
b23aa676 SO |
603 | } |
604 | ||
605 | memset(&wrqu, 0, sizeof(wrqu)); | |
606 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
607 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
f401a6f7 JB |
608 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
609 | wdev->wext.prev_bssid_valid = true; | |
667503dd | 610 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 SO |
611 | #endif |
612 | } | |
667503dd | 613 | |
ed9d0102 JM |
614 | void cfg80211_roamed(struct net_device *dev, |
615 | struct ieee80211_channel *channel, | |
616 | const u8 *bssid, | |
667503dd JB |
617 | const u8 *req_ie, size_t req_ie_len, |
618 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
619 | { | |
620 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
621 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
622 | struct cfg80211_event *ev; | |
623 | unsigned long flags; | |
624 | ||
f7969969 JB |
625 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
626 | ||
667503dd JB |
627 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
628 | if (!ev) | |
629 | return; | |
630 | ||
631 | ev->type = EVENT_ROAMED; | |
ed9d0102 | 632 | ev->rm.channel = channel; |
667503dd JB |
633 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); |
634 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); | |
635 | ev->rm.req_ie_len = req_ie_len; | |
636 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
637 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
638 | ev->rm.resp_ie_len = resp_ie_len; | |
639 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
640 | ||
641 | spin_lock_irqsave(&wdev->event_lock, flags); | |
642 | list_add_tail(&ev->list, &wdev->event_list); | |
643 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 644 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 645 | } |
b23aa676 SO |
646 | EXPORT_SYMBOL(cfg80211_roamed); |
647 | ||
667503dd | 648 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 649 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
650 | { |
651 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
652 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
653 | int i; | |
3d23e349 | 654 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
655 | union iwreq_data wrqu; |
656 | #endif | |
657 | ||
667503dd JB |
658 | ASSERT_WDEV_LOCK(wdev); |
659 | ||
074ac8df JB |
660 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
661 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
662 | return; |
663 | ||
f7969969 | 664 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
665 | return; |
666 | ||
667 | if (wdev->current_bss) { | |
668 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 669 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
670 | } |
671 | ||
672 | wdev->current_bss = NULL; | |
673 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 674 | wdev->ssid_len = 0; |
b23aa676 | 675 | |
6829c878 | 676 | if (wdev->conn) { |
b6f0b639 JB |
677 | const u8 *bssid; |
678 | int ret; | |
679 | ||
6829c878 JB |
680 | kfree(wdev->conn->ie); |
681 | wdev->conn->ie = NULL; | |
19957bb3 JB |
682 | kfree(wdev->conn); |
683 | wdev->conn = NULL; | |
b6f0b639 JB |
684 | |
685 | /* | |
686 | * If this disconnect was due to a disassoc, we | |
687 | * we might still have an auth BSS around. For | |
688 | * the userspace SME that's currently expected, | |
689 | * but for the kernel SME (nl80211 CONNECT or | |
690 | * wireless extensions) we want to clear up all | |
691 | * state. | |
692 | */ | |
693 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
694 | if (!wdev->auth_bsses[i]) | |
695 | continue; | |
696 | bssid = wdev->auth_bsses[i]->pub.bssid; | |
697 | ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, | |
d5cdfacb JM |
698 | WLAN_REASON_DEAUTH_LEAVING, |
699 | false); | |
b6f0b639 JB |
700 | WARN(ret, "deauth failed: %d\n", ret); |
701 | } | |
6829c878 JB |
702 | } |
703 | ||
fffd0934 JB |
704 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
705 | ||
706 | /* | |
707 | * Delete all the keys ... pairwise keys can't really | |
708 | * exist any more anyway, but default keys might. | |
709 | */ | |
710 | if (rdev->ops->del_key) | |
711 | for (i = 0; i < 6; i++) | |
e31b8213 | 712 | rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); |
b23aa676 | 713 | |
3d23e349 | 714 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
715 | memset(&wrqu, 0, sizeof(wrqu)); |
716 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
717 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 718 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 719 | #endif |
09d989d1 LR |
720 | |
721 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
722 | } |
723 | ||
724 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
725 | u8 *ie, size_t ie_len, gfp_t gfp) | |
726 | { | |
667503dd JB |
727 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
728 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
729 | struct cfg80211_event *ev; | |
730 | unsigned long flags; | |
731 | ||
f7969969 JB |
732 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
733 | ||
667503dd JB |
734 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
735 | if (!ev) | |
736 | return; | |
737 | ||
738 | ev->type = EVENT_DISCONNECTED; | |
739 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
740 | ev->dc.ie_len = ie_len; | |
741 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
742 | ev->dc.reason = reason; | |
743 | ||
744 | spin_lock_irqsave(&wdev->event_lock, flags); | |
745 | list_add_tail(&ev->list, &wdev->event_list); | |
746 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 747 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
748 | } |
749 | EXPORT_SYMBOL(cfg80211_disconnected); | |
750 | ||
667503dd JB |
751 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
752 | struct net_device *dev, | |
fffd0934 | 753 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
754 | struct cfg80211_cached_keys *connkeys, |
755 | const u8 *prev_bssid) | |
b23aa676 | 756 | { |
b23aa676 | 757 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 758 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
759 | int err; |
760 | ||
761 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
762 | |
763 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
764 | return -EALREADY; | |
765 | ||
fffd0934 JB |
766 | if (WARN_ON(wdev->connect_keys)) { |
767 | kfree(wdev->connect_keys); | |
768 | wdev->connect_keys = NULL; | |
769 | } | |
770 | ||
771 | if (connkeys && connkeys->def >= 0) { | |
772 | int idx; | |
bcba8eae | 773 | u32 cipher; |
fffd0934 JB |
774 | |
775 | idx = connkeys->def; | |
bcba8eae | 776 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 777 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
778 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
779 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
780 | connect->key_idx = idx; |
781 | connect->key = connkeys->params[idx].key; | |
782 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
783 | |
784 | /* | |
785 | * If ciphers are not set (e.g. when going through | |
786 | * iwconfig), we have to set them appropriately here. | |
787 | */ | |
788 | if (connect->crypto.cipher_group == 0) | |
789 | connect->crypto.cipher_group = cipher; | |
790 | ||
791 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
792 | connect->crypto.n_ciphers_pairwise = 1; | |
793 | connect->crypto.ciphers_pairwise[0] = cipher; | |
794 | } | |
fffd0934 JB |
795 | } |
796 | } | |
797 | ||
b23aa676 | 798 | if (!rdev->ops->connect) { |
6829c878 JB |
799 | if (!rdev->ops->auth || !rdev->ops->assoc) |
800 | return -EOPNOTSUPP; | |
801 | ||
19957bb3 JB |
802 | if (WARN_ON(wdev->conn)) |
803 | return -EINPROGRESS; | |
804 | ||
805 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
806 | if (!wdev->conn) | |
807 | return -ENOMEM; | |
6829c878 JB |
808 | |
809 | /* | |
810 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
811 | */ | |
812 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
813 | if (connect->bssid) { | |
814 | wdev->conn->params.bssid = wdev->conn->bssid; | |
815 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
816 | } | |
817 | ||
818 | if (connect->ie) { | |
819 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
820 | GFP_KERNEL); | |
821 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
822 | if (!wdev->conn->ie) { |
823 | kfree(wdev->conn); | |
824 | wdev->conn = NULL; | |
6829c878 | 825 | return -ENOMEM; |
19957bb3 | 826 | } |
6829c878 JB |
827 | } |
828 | ||
829 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
830 | wdev->conn->auto_auth = true; | |
831 | /* start with open system ... should mostly work */ | |
832 | wdev->conn->params.auth_type = | |
833 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
834 | } else { | |
835 | wdev->conn->auto_auth = false; | |
836 | } | |
837 | ||
838 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
839 | wdev->ssid_len = connect->ssid_len; | |
840 | wdev->conn->params.ssid = wdev->ssid; | |
841 | wdev->conn->params.ssid_len = connect->ssid_len; | |
842 | ||
8bb89485 JB |
843 | /* see if we have the bss already */ |
844 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
845 | |
846 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 847 | wdev->connect_keys = connkeys; |
6829c878 | 848 | |
f401a6f7 JB |
849 | if (prev_bssid) { |
850 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
851 | wdev->conn->prev_bssid_valid = true; | |
852 | } | |
853 | ||
bbac31f4 JB |
854 | /* we're good if we have a matching bss struct */ |
855 | if (bss) { | |
6829c878 JB |
856 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
857 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 858 | cfg80211_put_bss(bss); |
6829c878 JB |
859 | } else { |
860 | /* otherwise we'll need to scan for the AP first */ | |
861 | err = cfg80211_conn_scan(wdev); | |
862 | /* | |
863 | * If we can't scan right now, then we need to scan again | |
864 | * after the current scan finished, since the parameters | |
865 | * changed (unless we find a good AP anyway). | |
866 | */ | |
867 | if (err == -EBUSY) { | |
868 | err = 0; | |
869 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
870 | } | |
871 | } | |
19957bb3 | 872 | if (err) { |
415ad1ef | 873 | kfree(wdev->conn->ie); |
19957bb3 JB |
874 | kfree(wdev->conn); |
875 | wdev->conn = NULL; | |
6829c878 | 876 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 877 | wdev->connect_keys = NULL; |
8dadadb7 | 878 | wdev->ssid_len = 0; |
19957bb3 | 879 | } |
6829c878 JB |
880 | |
881 | return err; | |
b23aa676 SO |
882 | } else { |
883 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 884 | wdev->connect_keys = connkeys; |
b23aa676 SO |
885 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
886 | if (err) { | |
fffd0934 | 887 | wdev->connect_keys = NULL; |
b23aa676 SO |
888 | wdev->sme_state = CFG80211_SME_IDLE; |
889 | return err; | |
890 | } | |
b23aa676 | 891 | |
6829c878 JB |
892 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
893 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 894 | |
6829c878 JB |
895 | return 0; |
896 | } | |
b23aa676 SO |
897 | } |
898 | ||
667503dd JB |
899 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
900 | struct net_device *dev, | |
fffd0934 JB |
901 | struct cfg80211_connect_params *connect, |
902 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
903 | { |
904 | int err; | |
905 | ||
59bbb6f7 | 906 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 907 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 908 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 909 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 910 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
911 | |
912 | return err; | |
913 | } | |
914 | ||
915 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
916 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 917 | { |
6829c878 | 918 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
919 | int err; |
920 | ||
667503dd JB |
921 | ASSERT_WDEV_LOCK(wdev); |
922 | ||
6829c878 JB |
923 | if (wdev->sme_state == CFG80211_SME_IDLE) |
924 | return -EINVAL; | |
925 | ||
fffd0934 JB |
926 | kfree(wdev->connect_keys); |
927 | wdev->connect_keys = NULL; | |
928 | ||
b23aa676 | 929 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
930 | if (!rdev->ops->deauth) |
931 | return -EOPNOTSUPP; | |
6829c878 | 932 | |
19957bb3 JB |
933 | /* was it connected by userspace SME? */ |
934 | if (!wdev->conn) { | |
935 | cfg80211_mlme_down(rdev, dev); | |
936 | return 0; | |
937 | } | |
6829c878 JB |
938 | |
939 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
940 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
941 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
942 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 943 | kfree(wdev->conn->ie); |
19957bb3 JB |
944 | kfree(wdev->conn); |
945 | wdev->conn = NULL; | |
8dadadb7 | 946 | wdev->ssid_len = 0; |
6829c878 JB |
947 | return 0; |
948 | } | |
949 | ||
6829c878 | 950 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
951 | err = __cfg80211_mlme_deauth(rdev, dev, |
952 | wdev->conn->params.bssid, | |
d5cdfacb | 953 | NULL, 0, reason, false); |
6829c878 JB |
954 | if (err) |
955 | return err; | |
b23aa676 SO |
956 | } else { |
957 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); | |
958 | if (err) | |
959 | return err; | |
960 | } | |
961 | ||
6829c878 | 962 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 963 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 964 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
965 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
966 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 967 | wextev, NULL); |
b23aa676 SO |
968 | |
969 | return 0; | |
970 | } | |
19957bb3 | 971 | |
667503dd JB |
972 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
973 | struct net_device *dev, | |
974 | u16 reason, bool wextev) | |
975 | { | |
976 | int err; | |
977 | ||
978 | wdev_lock(dev->ieee80211_ptr); | |
979 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
980 | wdev_unlock(dev->ieee80211_ptr); | |
981 | ||
982 | return err; | |
983 | } | |
984 | ||
19957bb3 JB |
985 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
986 | { | |
987 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
988 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
989 | u8 bssid[ETH_ALEN]; | |
990 | ||
667503dd JB |
991 | ASSERT_WDEV_LOCK(wdev); |
992 | ||
19957bb3 JB |
993 | if (!wdev->conn) |
994 | return; | |
995 | ||
996 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
997 | return; | |
998 | ||
999 | /* | |
1000 | * Ok, so the association was made by this SME -- we don't | |
1001 | * want it any more so deauthenticate too. | |
1002 | */ | |
1003 | ||
1004 | if (!wdev->auth_bsses[idx]) | |
1005 | return; | |
1006 | ||
1007 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); | |
ec3f1490 | 1008 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
d5cdfacb JM |
1009 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING, |
1010 | false)) { | |
19957bb3 JB |
1011 | /* whatever -- assume gone anyway */ |
1012 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); | |
1013 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); | |
1014 | wdev->auth_bsses[idx] = NULL; | |
1015 | } | |
1016 | } |