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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 | 12 | #include <linux/wireless.h> |
bc3b2d7f | 13 | #include <linux/export.h> |
a9a11622 | 14 | #include <net/iw_handler.h> |
b23aa676 SO |
15 | #include <net/cfg80211.h> |
16 | #include <net/rtnetlink.h> | |
17 | #include "nl80211.h" | |
8b19e6ca | 18 | #include "reg.h" |
b23aa676 | 19 | |
6829c878 JB |
20 | struct cfg80211_conn { |
21 | struct cfg80211_connect_params params; | |
22 | /* these are sub-states of the _CONNECTING sme_state */ | |
23 | enum { | |
24 | CFG80211_CONN_IDLE, | |
25 | CFG80211_CONN_SCANNING, | |
26 | CFG80211_CONN_SCAN_AGAIN, | |
27 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
28 | CFG80211_CONN_AUTHENTICATING, | |
29 | CFG80211_CONN_ASSOCIATE_NEXT, | |
30 | CFG80211_CONN_ASSOCIATING, | |
7d930bc3 | 31 | CFG80211_CONN_DEAUTH_ASSOC_FAIL, |
6829c878 | 32 | } state; |
f401a6f7 | 33 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
34 | u8 *ie; |
35 | size_t ie_len; | |
f401a6f7 | 36 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
37 | }; |
38 | ||
20925fee | 39 | static bool cfg80211_is_all_idle(void) |
09d989d1 LR |
40 | { |
41 | struct cfg80211_registered_device *rdev; | |
42 | struct wireless_dev *wdev; | |
43 | bool is_all_idle = true; | |
44 | ||
45 | mutex_lock(&cfg80211_mutex); | |
46 | ||
47 | /* | |
48 | * All devices must be idle as otherwise if you are actively | |
49 | * scanning some new beacon hints could be learned and would | |
50 | * count as new regulatory hints. | |
51 | */ | |
52 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
53 | cfg80211_lock_rdev(rdev); | |
54 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
55 | wdev_lock(wdev); | |
56 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
57 | is_all_idle = false; | |
58 | wdev_unlock(wdev); | |
59 | } | |
60 | cfg80211_unlock_rdev(rdev); | |
61 | } | |
62 | ||
63 | mutex_unlock(&cfg80211_mutex); | |
64 | ||
65 | return is_all_idle; | |
66 | } | |
67 | ||
68 | static void disconnect_work(struct work_struct *work) | |
69 | { | |
70 | if (!cfg80211_is_all_idle()) | |
71 | return; | |
72 | ||
73 | regulatory_hint_disconnect(); | |
74 | } | |
75 | ||
76 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
6829c878 JB |
77 | |
78 | static int cfg80211_conn_scan(struct wireless_dev *wdev) | |
79 | { | |
79c97e97 | 80 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
81 | struct cfg80211_scan_request *request; |
82 | int n_channels, err; | |
83 | ||
84 | ASSERT_RTNL(); | |
79c97e97 | 85 | ASSERT_RDEV_LOCK(rdev); |
667503dd | 86 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 87 | |
79c97e97 | 88 | if (rdev->scan_req) |
6829c878 JB |
89 | return -EBUSY; |
90 | ||
91 | if (wdev->conn->params.channel) { | |
92 | n_channels = 1; | |
93 | } else { | |
94 | enum ieee80211_band band; | |
95 | n_channels = 0; | |
96 | ||
97 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
98 | if (!wdev->wiphy->bands[band]) | |
99 | continue; | |
100 | n_channels += wdev->wiphy->bands[band]->n_channels; | |
101 | } | |
102 | } | |
103 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + | |
104 | sizeof(request->channels[0]) * n_channels, | |
105 | GFP_KERNEL); | |
106 | if (!request) | |
107 | return -ENOMEM; | |
108 | ||
6829c878 JB |
109 | if (wdev->conn->params.channel) |
110 | request->channels[0] = wdev->conn->params.channel; | |
111 | else { | |
112 | int i = 0, j; | |
113 | enum ieee80211_band band; | |
e3081501 RM |
114 | struct ieee80211_supported_band *bands; |
115 | struct ieee80211_channel *channel; | |
6829c878 JB |
116 | |
117 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
118 | bands = wdev->wiphy->bands[band]; |
119 | if (!bands) | |
6829c878 | 120 | continue; |
e3081501 RM |
121 | for (j = 0; j < bands->n_channels; j++) { |
122 | channel = &bands->channels[j]; | |
123 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
124 | continue; | |
125 | request->channels[i++] = channel; | |
126 | } | |
127 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 128 | } |
e3081501 | 129 | n_channels = i; |
6829c878 JB |
130 | } |
131 | request->n_channels = n_channels; | |
5ba63533 | 132 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
133 | request->n_ssids = 1; |
134 | ||
135 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
136 | wdev->conn->params.ssid_len); | |
137 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
138 | ||
463d0183 | 139 | request->dev = wdev->netdev; |
79c97e97 | 140 | request->wiphy = &rdev->wiphy; |
6829c878 | 141 | |
79c97e97 | 142 | rdev->scan_req = request; |
6829c878 | 143 | |
79c97e97 | 144 | err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request); |
6829c878 JB |
145 | if (!err) { |
146 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
79c97e97 | 147 | nl80211_send_scan_start(rdev, wdev->netdev); |
463d0183 | 148 | dev_hold(wdev->netdev); |
6829c878 | 149 | } else { |
79c97e97 | 150 | rdev->scan_req = NULL; |
6829c878 JB |
151 | kfree(request); |
152 | } | |
153 | return err; | |
154 | } | |
155 | ||
156 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
157 | { | |
79c97e97 | 158 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 159 | struct cfg80211_connect_params *params; |
f401a6f7 | 160 | const u8 *prev_bssid = NULL; |
19957bb3 | 161 | int err; |
6829c878 | 162 | |
667503dd JB |
163 | ASSERT_WDEV_LOCK(wdev); |
164 | ||
6829c878 JB |
165 | if (!wdev->conn) |
166 | return 0; | |
167 | ||
19957bb3 JB |
168 | params = &wdev->conn->params; |
169 | ||
6829c878 JB |
170 | switch (wdev->conn->state) { |
171 | case CFG80211_CONN_SCAN_AGAIN: | |
172 | return cfg80211_conn_scan(wdev); | |
173 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 174 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 175 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 176 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
177 | params->channel, params->auth_type, |
178 | params->bssid, | |
179 | params->ssid, params->ssid_len, | |
fffd0934 JB |
180 | NULL, 0, |
181 | params->key, params->key_len, | |
d5cdfacb | 182 | params->key_idx, false); |
6829c878 | 183 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 184 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 185 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
186 | if (wdev->conn->prev_bssid_valid) |
187 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 188 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 189 | params->channel, params->bssid, |
f401a6f7 | 190 | prev_bssid, |
667503dd JB |
191 | params->ssid, params->ssid_len, |
192 | params->ie, params->ie_len, | |
193 | false, ¶ms->crypto); | |
19957bb3 | 194 | if (err) |
79c97e97 | 195 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd | 196 | NULL, 0, |
d5cdfacb JM |
197 | WLAN_REASON_DEAUTH_LEAVING, |
198 | false); | |
19957bb3 | 199 | return err; |
7d930bc3 JB |
200 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
201 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
202 | NULL, 0, | |
d5cdfacb | 203 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
204 | /* return an error so that we call __cfg80211_connect_result() */ |
205 | return -EINVAL; | |
6829c878 JB |
206 | default: |
207 | return 0; | |
208 | } | |
209 | } | |
210 | ||
211 | void cfg80211_conn_work(struct work_struct *work) | |
212 | { | |
79c97e97 | 213 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
214 | container_of(work, struct cfg80211_registered_device, conn_work); |
215 | struct wireless_dev *wdev; | |
7400f42e | 216 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
217 | |
218 | rtnl_lock(); | |
79c97e97 JB |
219 | cfg80211_lock_rdev(rdev); |
220 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 221 | |
79c97e97 | 222 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
667503dd JB |
223 | wdev_lock(wdev); |
224 | if (!netif_running(wdev->netdev)) { | |
225 | wdev_unlock(wdev); | |
6829c878 | 226 | continue; |
667503dd JB |
227 | } |
228 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
229 | wdev_unlock(wdev); | |
6829c878 | 230 | continue; |
667503dd | 231 | } |
7400f42e JB |
232 | if (wdev->conn->params.bssid) { |
233 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
234 | bssid = bssid_buf; | |
235 | } | |
6829c878 | 236 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 237 | __cfg80211_connect_result( |
7d930bc3 | 238 | wdev->netdev, bssid, |
667503dd JB |
239 | NULL, 0, NULL, 0, |
240 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 241 | false, NULL); |
667503dd | 242 | wdev_unlock(wdev); |
6829c878 JB |
243 | } |
244 | ||
79c97e97 JB |
245 | mutex_unlock(&rdev->devlist_mtx); |
246 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
247 | rtnl_unlock(); |
248 | } | |
249 | ||
bbac31f4 | 250 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 251 | { |
79c97e97 | 252 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
253 | struct cfg80211_bss *bss; |
254 | u16 capa = WLAN_CAPABILITY_ESS; | |
255 | ||
667503dd JB |
256 | ASSERT_WDEV_LOCK(wdev); |
257 | ||
6829c878 JB |
258 | if (wdev->conn->params.privacy) |
259 | capa |= WLAN_CAPABILITY_PRIVACY; | |
260 | ||
ed9d0102 JM |
261 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
262 | wdev->conn->params.bssid, | |
6829c878 JB |
263 | wdev->conn->params.ssid, |
264 | wdev->conn->params.ssid_len, | |
265 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
266 | capa); | |
6829c878 | 267 | if (!bss) |
bbac31f4 | 268 | return NULL; |
6829c878 JB |
269 | |
270 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
271 | wdev->conn->params.bssid = wdev->conn->bssid; | |
272 | wdev->conn->params.channel = bss->channel; | |
273 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 274 | schedule_work(&rdev->conn_work); |
6829c878 | 275 | |
bbac31f4 | 276 | return bss; |
6829c878 JB |
277 | } |
278 | ||
667503dd | 279 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
280 | { |
281 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 282 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 283 | struct cfg80211_bss *bss; |
6829c878 | 284 | |
667503dd JB |
285 | ASSERT_WDEV_LOCK(wdev); |
286 | ||
6829c878 JB |
287 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
288 | return; | |
289 | ||
d4b1a687 | 290 | if (!wdev->conn) |
6829c878 JB |
291 | return; |
292 | ||
293 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
294 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
295 | return; | |
296 | ||
bbac31f4 JB |
297 | bss = cfg80211_get_conn_bss(wdev); |
298 | if (bss) { | |
299 | cfg80211_put_bss(bss); | |
300 | } else { | |
6829c878 JB |
301 | /* not found */ |
302 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 303 | schedule_work(&rdev->conn_work); |
6829c878 | 304 | else |
667503dd JB |
305 | __cfg80211_connect_result( |
306 | wdev->netdev, | |
307 | wdev->conn->params.bssid, | |
308 | NULL, 0, NULL, 0, | |
309 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 310 | false, NULL); |
6829c878 JB |
311 | } |
312 | } | |
313 | ||
667503dd JB |
314 | void cfg80211_sme_scan_done(struct net_device *dev) |
315 | { | |
316 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
317 | ||
59bbb6f7 | 318 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
319 | wdev_lock(wdev); |
320 | __cfg80211_sme_scan_done(dev); | |
321 | wdev_unlock(wdev); | |
59bbb6f7 | 322 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
323 | } |
324 | ||
325 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
326 | const u8 *buf, size_t len) | |
6829c878 JB |
327 | { |
328 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
329 | struct wiphy *wiphy = wdev->wiphy; | |
330 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
331 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
332 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
333 | ||
667503dd JB |
334 | ASSERT_WDEV_LOCK(wdev); |
335 | ||
6829c878 JB |
336 | /* should only RX auth frames when connecting */ |
337 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
338 | return; | |
339 | ||
340 | if (WARN_ON(!wdev->conn)) | |
341 | return; | |
342 | ||
343 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
344 | wdev->conn->auto_auth && | |
345 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
346 | /* select automatically between only open, shared, leap */ | |
347 | switch (wdev->conn->params.auth_type) { | |
348 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
349 | if (wdev->connect_keys) |
350 | wdev->conn->params.auth_type = | |
351 | NL80211_AUTHTYPE_SHARED_KEY; | |
352 | else | |
353 | wdev->conn->params.auth_type = | |
354 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
355 | break; |
356 | case NL80211_AUTHTYPE_SHARED_KEY: | |
357 | wdev->conn->params.auth_type = | |
358 | NL80211_AUTHTYPE_NETWORK_EAP; | |
359 | break; | |
360 | default: | |
361 | /* huh? */ | |
362 | wdev->conn->params.auth_type = | |
363 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
364 | break; | |
365 | } | |
366 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
367 | schedule_work(&rdev->conn_work); | |
19957bb3 | 368 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 369 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 370 | status_code, false, NULL); |
19957bb3 | 371 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
372 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
373 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
374 | schedule_work(&rdev->conn_work); | |
375 | } | |
376 | } | |
b23aa676 | 377 | |
f401a6f7 JB |
378 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
379 | { | |
380 | struct wiphy *wiphy = wdev->wiphy; | |
381 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
382 | ||
383 | if (WARN_ON(!wdev->conn)) | |
384 | return false; | |
385 | ||
386 | if (!wdev->conn->prev_bssid_valid) | |
387 | return false; | |
388 | ||
389 | /* | |
390 | * Some stupid APs don't accept reassoc, so we | |
391 | * need to fall back to trying regular assoc. | |
392 | */ | |
393 | wdev->conn->prev_bssid_valid = false; | |
394 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
395 | schedule_work(&rdev->conn_work); | |
396 | ||
397 | return true; | |
398 | } | |
399 | ||
7d930bc3 JB |
400 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
401 | { | |
402 | struct wiphy *wiphy = wdev->wiphy; | |
403 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
404 | ||
405 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
406 | schedule_work(&rdev->conn_work); | |
407 | } | |
408 | ||
667503dd JB |
409 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
410 | const u8 *req_ie, size_t req_ie_len, | |
411 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
412 | u16 status, bool wextev, |
413 | struct cfg80211_bss *bss) | |
b23aa676 SO |
414 | { |
415 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8b19e6ca | 416 | u8 *country_ie; |
3d23e349 | 417 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
418 | union iwreq_data wrqu; |
419 | #endif | |
420 | ||
667503dd JB |
421 | ASSERT_WDEV_LOCK(wdev); |
422 | ||
074ac8df JB |
423 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
424 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
425 | return; |
426 | ||
f7969969 | 427 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
428 | return; |
429 | ||
430 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 431 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
432 | resp_ie, resp_ie_len, |
433 | status, GFP_KERNEL); | |
e45cd82a | 434 | |
3d23e349 | 435 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
436 | if (wextev) { |
437 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
438 | memset(&wrqu, 0, sizeof(wrqu)); | |
439 | wrqu.data.length = req_ie_len; | |
3409ff77 | 440 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
441 | } |
442 | ||
443 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
444 | memset(&wrqu, 0, sizeof(wrqu)); | |
445 | wrqu.data.length = resp_ie_len; | |
446 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
447 | } | |
448 | ||
449 | memset(&wrqu, 0, sizeof(wrqu)); | |
450 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 451 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 452 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
453 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
454 | wdev->wext.prev_bssid_valid = true; | |
455 | } | |
e45cd82a JB |
456 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
457 | } | |
458 | #endif | |
459 | ||
df7fc0f9 JB |
460 | if (wdev->current_bss) { |
461 | cfg80211_unhold_bss(wdev->current_bss); | |
462 | cfg80211_put_bss(&wdev->current_bss->pub); | |
463 | wdev->current_bss = NULL; | |
464 | } | |
465 | ||
19957bb3 JB |
466 | if (wdev->conn) |
467 | wdev->conn->state = CFG80211_CONN_IDLE; | |
468 | ||
fffd0934 | 469 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 470 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
471 | if (wdev->conn) |
472 | kfree(wdev->conn->ie); | |
19957bb3 JB |
473 | kfree(wdev->conn); |
474 | wdev->conn = NULL; | |
fffd0934 JB |
475 | kfree(wdev->connect_keys); |
476 | wdev->connect_keys = NULL; | |
8dadadb7 | 477 | wdev->ssid_len = 0; |
fffd0934 | 478 | return; |
b23aa676 | 479 | } |
fffd0934 | 480 | |
df7fc0f9 | 481 | if (!bss) |
ed9d0102 JM |
482 | bss = cfg80211_get_bss(wdev->wiphy, |
483 | wdev->conn ? wdev->conn->params.channel : | |
484 | NULL, | |
485 | bssid, | |
df7fc0f9 JB |
486 | wdev->ssid, wdev->ssid_len, |
487 | WLAN_CAPABILITY_ESS, | |
488 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
489 | |
490 | if (WARN_ON(!bss)) | |
491 | return; | |
492 | ||
493 | cfg80211_hold_bss(bss_from_pub(bss)); | |
494 | wdev->current_bss = bss_from_pub(bss); | |
495 | ||
fffd0934 JB |
496 | wdev->sme_state = CFG80211_SME_CONNECTED; |
497 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca LR |
498 | |
499 | country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
500 | ||
501 | if (!country_ie) | |
502 | return; | |
503 | ||
504 | /* | |
505 | * ieee80211_bss_get_ie() ensures we can access: | |
506 | * - country_ie + 2, the start of the country ie data, and | |
507 | * - and country_ie[1] which is the IE length | |
508 | */ | |
509 | regulatory_hint_11d(wdev->wiphy, | |
84920e3e | 510 | bss->channel->band, |
8b19e6ca LR |
511 | country_ie + 2, |
512 | country_ie[1]); | |
b23aa676 | 513 | } |
f2129354 JB |
514 | |
515 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
516 | const u8 *req_ie, size_t req_ie_len, | |
517 | const u8 *resp_ie, size_t resp_ie_len, | |
518 | u16 status, gfp_t gfp) | |
519 | { | |
667503dd JB |
520 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
521 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
522 | struct cfg80211_event *ev; | |
523 | unsigned long flags; | |
524 | ||
f7969969 JB |
525 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
526 | ||
667503dd JB |
527 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
528 | if (!ev) | |
529 | return; | |
530 | ||
531 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
532 | if (bssid) |
533 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
534 | if (req_ie_len) { |
535 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
536 | ev->cr.req_ie_len = req_ie_len; | |
537 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
538 | } | |
539 | if (resp_ie_len) { | |
540 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
541 | ev->cr.resp_ie_len = resp_ie_len; | |
542 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
543 | } | |
667503dd JB |
544 | ev->cr.status = status; |
545 | ||
546 | spin_lock_irqsave(&wdev->event_lock, flags); | |
547 | list_add_tail(&ev->list, &wdev->event_list); | |
548 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 549 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 550 | } |
b23aa676 SO |
551 | EXPORT_SYMBOL(cfg80211_connect_result); |
552 | ||
ed9d0102 JM |
553 | void __cfg80211_roamed(struct wireless_dev *wdev, |
554 | struct ieee80211_channel *channel, | |
555 | const u8 *bssid, | |
667503dd JB |
556 | const u8 *req_ie, size_t req_ie_len, |
557 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 558 | { |
b23aa676 | 559 | struct cfg80211_bss *bss; |
3d23e349 | 560 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
561 | union iwreq_data wrqu; |
562 | #endif | |
563 | ||
667503dd JB |
564 | ASSERT_WDEV_LOCK(wdev); |
565 | ||
074ac8df JB |
566 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
567 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
568 | return; |
569 | ||
f7969969 | 570 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
571 | return; |
572 | ||
573 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
574 | if (WARN_ON(!wdev->current_bss)) { | |
575 | return; | |
576 | } | |
577 | ||
578 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 579 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
580 | wdev->current_bss = NULL; |
581 | ||
ed9d0102 | 582 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, |
b23aa676 SO |
583 | wdev->ssid, wdev->ssid_len, |
584 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
585 | ||
586 | if (WARN_ON(!bss)) | |
587 | return; | |
588 | ||
19957bb3 JB |
589 | cfg80211_hold_bss(bss_from_pub(bss)); |
590 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 591 | |
667503dd JB |
592 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
593 | req_ie, req_ie_len, resp_ie, resp_ie_len, | |
594 | GFP_KERNEL); | |
b23aa676 | 595 | |
3d23e349 | 596 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
597 | if (req_ie) { |
598 | memset(&wrqu, 0, sizeof(wrqu)); | |
599 | wrqu.data.length = req_ie_len; | |
3409ff77 | 600 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 601 | &wrqu, req_ie); |
b23aa676 SO |
602 | } |
603 | ||
604 | if (resp_ie) { | |
605 | memset(&wrqu, 0, sizeof(wrqu)); | |
606 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
607 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
608 | &wrqu, resp_ie); | |
b23aa676 SO |
609 | } |
610 | ||
611 | memset(&wrqu, 0, sizeof(wrqu)); | |
612 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
613 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
f401a6f7 JB |
614 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
615 | wdev->wext.prev_bssid_valid = true; | |
667503dd | 616 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 SO |
617 | #endif |
618 | } | |
667503dd | 619 | |
ed9d0102 JM |
620 | void cfg80211_roamed(struct net_device *dev, |
621 | struct ieee80211_channel *channel, | |
622 | const u8 *bssid, | |
667503dd JB |
623 | const u8 *req_ie, size_t req_ie_len, |
624 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
625 | { | |
626 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
627 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
628 | struct cfg80211_event *ev; | |
629 | unsigned long flags; | |
630 | ||
f7969969 JB |
631 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
632 | ||
667503dd JB |
633 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
634 | if (!ev) | |
635 | return; | |
636 | ||
637 | ev->type = EVENT_ROAMED; | |
ed9d0102 | 638 | ev->rm.channel = channel; |
667503dd JB |
639 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); |
640 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); | |
641 | ev->rm.req_ie_len = req_ie_len; | |
642 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
643 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
644 | ev->rm.resp_ie_len = resp_ie_len; | |
645 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
646 | ||
647 | spin_lock_irqsave(&wdev->event_lock, flags); | |
648 | list_add_tail(&ev->list, &wdev->event_list); | |
649 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 650 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 651 | } |
b23aa676 SO |
652 | EXPORT_SYMBOL(cfg80211_roamed); |
653 | ||
667503dd | 654 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 655 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
656 | { |
657 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
658 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
659 | int i; | |
3d23e349 | 660 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
661 | union iwreq_data wrqu; |
662 | #endif | |
663 | ||
667503dd JB |
664 | ASSERT_WDEV_LOCK(wdev); |
665 | ||
074ac8df JB |
666 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
667 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
668 | return; |
669 | ||
f7969969 | 670 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
671 | return; |
672 | ||
673 | if (wdev->current_bss) { | |
674 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 675 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
676 | } |
677 | ||
678 | wdev->current_bss = NULL; | |
679 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 680 | wdev->ssid_len = 0; |
b23aa676 | 681 | |
6829c878 | 682 | if (wdev->conn) { |
b6f0b639 JB |
683 | const u8 *bssid; |
684 | int ret; | |
685 | ||
6829c878 JB |
686 | kfree(wdev->conn->ie); |
687 | wdev->conn->ie = NULL; | |
19957bb3 JB |
688 | kfree(wdev->conn); |
689 | wdev->conn = NULL; | |
b6f0b639 JB |
690 | |
691 | /* | |
692 | * If this disconnect was due to a disassoc, we | |
693 | * we might still have an auth BSS around. For | |
694 | * the userspace SME that's currently expected, | |
695 | * but for the kernel SME (nl80211 CONNECT or | |
696 | * wireless extensions) we want to clear up all | |
697 | * state. | |
698 | */ | |
699 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
700 | if (!wdev->auth_bsses[i]) | |
701 | continue; | |
702 | bssid = wdev->auth_bsses[i]->pub.bssid; | |
703 | ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, | |
d5cdfacb JM |
704 | WLAN_REASON_DEAUTH_LEAVING, |
705 | false); | |
b6f0b639 JB |
706 | WARN(ret, "deauth failed: %d\n", ret); |
707 | } | |
6829c878 JB |
708 | } |
709 | ||
fffd0934 JB |
710 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
711 | ||
712 | /* | |
713 | * Delete all the keys ... pairwise keys can't really | |
714 | * exist any more anyway, but default keys might. | |
715 | */ | |
716 | if (rdev->ops->del_key) | |
717 | for (i = 0; i < 6; i++) | |
e31b8213 | 718 | rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); |
b23aa676 | 719 | |
3d23e349 | 720 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
721 | memset(&wrqu, 0, sizeof(wrqu)); |
722 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
723 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 724 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 725 | #endif |
09d989d1 LR |
726 | |
727 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
728 | } |
729 | ||
730 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
731 | u8 *ie, size_t ie_len, gfp_t gfp) | |
732 | { | |
667503dd JB |
733 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
734 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
735 | struct cfg80211_event *ev; | |
736 | unsigned long flags; | |
737 | ||
f7969969 JB |
738 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
739 | ||
667503dd JB |
740 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
741 | if (!ev) | |
742 | return; | |
743 | ||
744 | ev->type = EVENT_DISCONNECTED; | |
745 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
746 | ev->dc.ie_len = ie_len; | |
747 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
748 | ev->dc.reason = reason; | |
749 | ||
750 | spin_lock_irqsave(&wdev->event_lock, flags); | |
751 | list_add_tail(&ev->list, &wdev->event_list); | |
752 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 753 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
754 | } |
755 | EXPORT_SYMBOL(cfg80211_disconnected); | |
756 | ||
667503dd JB |
757 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
758 | struct net_device *dev, | |
fffd0934 | 759 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
760 | struct cfg80211_cached_keys *connkeys, |
761 | const u8 *prev_bssid) | |
b23aa676 | 762 | { |
b23aa676 | 763 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 764 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
765 | int err; |
766 | ||
767 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
768 | |
769 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
770 | return -EALREADY; | |
771 | ||
fffd0934 JB |
772 | if (WARN_ON(wdev->connect_keys)) { |
773 | kfree(wdev->connect_keys); | |
774 | wdev->connect_keys = NULL; | |
775 | } | |
776 | ||
777 | if (connkeys && connkeys->def >= 0) { | |
778 | int idx; | |
bcba8eae | 779 | u32 cipher; |
fffd0934 JB |
780 | |
781 | idx = connkeys->def; | |
bcba8eae | 782 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 783 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
784 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
785 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
786 | connect->key_idx = idx; |
787 | connect->key = connkeys->params[idx].key; | |
788 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
789 | |
790 | /* | |
791 | * If ciphers are not set (e.g. when going through | |
792 | * iwconfig), we have to set them appropriately here. | |
793 | */ | |
794 | if (connect->crypto.cipher_group == 0) | |
795 | connect->crypto.cipher_group = cipher; | |
796 | ||
797 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
798 | connect->crypto.n_ciphers_pairwise = 1; | |
799 | connect->crypto.ciphers_pairwise[0] = cipher; | |
800 | } | |
fffd0934 JB |
801 | } |
802 | } | |
803 | ||
b23aa676 | 804 | if (!rdev->ops->connect) { |
6829c878 JB |
805 | if (!rdev->ops->auth || !rdev->ops->assoc) |
806 | return -EOPNOTSUPP; | |
807 | ||
19957bb3 JB |
808 | if (WARN_ON(wdev->conn)) |
809 | return -EINPROGRESS; | |
810 | ||
811 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
812 | if (!wdev->conn) | |
813 | return -ENOMEM; | |
6829c878 JB |
814 | |
815 | /* | |
816 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
817 | */ | |
818 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
819 | if (connect->bssid) { | |
820 | wdev->conn->params.bssid = wdev->conn->bssid; | |
821 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
822 | } | |
823 | ||
824 | if (connect->ie) { | |
825 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
826 | GFP_KERNEL); | |
827 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
828 | if (!wdev->conn->ie) { |
829 | kfree(wdev->conn); | |
830 | wdev->conn = NULL; | |
6829c878 | 831 | return -ENOMEM; |
19957bb3 | 832 | } |
6829c878 JB |
833 | } |
834 | ||
835 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
836 | wdev->conn->auto_auth = true; | |
837 | /* start with open system ... should mostly work */ | |
838 | wdev->conn->params.auth_type = | |
839 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
840 | } else { | |
841 | wdev->conn->auto_auth = false; | |
842 | } | |
843 | ||
844 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
845 | wdev->ssid_len = connect->ssid_len; | |
846 | wdev->conn->params.ssid = wdev->ssid; | |
847 | wdev->conn->params.ssid_len = connect->ssid_len; | |
848 | ||
8bb89485 JB |
849 | /* see if we have the bss already */ |
850 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
851 | |
852 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 853 | wdev->connect_keys = connkeys; |
6829c878 | 854 | |
f401a6f7 JB |
855 | if (prev_bssid) { |
856 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
857 | wdev->conn->prev_bssid_valid = true; | |
858 | } | |
859 | ||
bbac31f4 JB |
860 | /* we're good if we have a matching bss struct */ |
861 | if (bss) { | |
6829c878 JB |
862 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
863 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 864 | cfg80211_put_bss(bss); |
6829c878 JB |
865 | } else { |
866 | /* otherwise we'll need to scan for the AP first */ | |
867 | err = cfg80211_conn_scan(wdev); | |
868 | /* | |
869 | * If we can't scan right now, then we need to scan again | |
870 | * after the current scan finished, since the parameters | |
871 | * changed (unless we find a good AP anyway). | |
872 | */ | |
873 | if (err == -EBUSY) { | |
874 | err = 0; | |
875 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
876 | } | |
877 | } | |
19957bb3 | 878 | if (err) { |
415ad1ef | 879 | kfree(wdev->conn->ie); |
19957bb3 JB |
880 | kfree(wdev->conn); |
881 | wdev->conn = NULL; | |
6829c878 | 882 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 883 | wdev->connect_keys = NULL; |
8dadadb7 | 884 | wdev->ssid_len = 0; |
19957bb3 | 885 | } |
6829c878 JB |
886 | |
887 | return err; | |
b23aa676 SO |
888 | } else { |
889 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 890 | wdev->connect_keys = connkeys; |
b23aa676 SO |
891 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
892 | if (err) { | |
fffd0934 | 893 | wdev->connect_keys = NULL; |
b23aa676 SO |
894 | wdev->sme_state = CFG80211_SME_IDLE; |
895 | return err; | |
896 | } | |
b23aa676 | 897 | |
6829c878 JB |
898 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
899 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 900 | |
6829c878 JB |
901 | return 0; |
902 | } | |
b23aa676 SO |
903 | } |
904 | ||
667503dd JB |
905 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
906 | struct net_device *dev, | |
fffd0934 JB |
907 | struct cfg80211_connect_params *connect, |
908 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
909 | { |
910 | int err; | |
911 | ||
59bbb6f7 | 912 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 913 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 914 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 915 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 916 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
917 | |
918 | return err; | |
919 | } | |
920 | ||
921 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
922 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 923 | { |
6829c878 | 924 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
925 | int err; |
926 | ||
667503dd JB |
927 | ASSERT_WDEV_LOCK(wdev); |
928 | ||
6829c878 JB |
929 | if (wdev->sme_state == CFG80211_SME_IDLE) |
930 | return -EINVAL; | |
931 | ||
fffd0934 JB |
932 | kfree(wdev->connect_keys); |
933 | wdev->connect_keys = NULL; | |
934 | ||
b23aa676 | 935 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
936 | if (!rdev->ops->deauth) |
937 | return -EOPNOTSUPP; | |
6829c878 | 938 | |
19957bb3 JB |
939 | /* was it connected by userspace SME? */ |
940 | if (!wdev->conn) { | |
941 | cfg80211_mlme_down(rdev, dev); | |
942 | return 0; | |
943 | } | |
6829c878 JB |
944 | |
945 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
946 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
947 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
948 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 949 | kfree(wdev->conn->ie); |
19957bb3 JB |
950 | kfree(wdev->conn); |
951 | wdev->conn = NULL; | |
8dadadb7 | 952 | wdev->ssid_len = 0; |
6829c878 JB |
953 | return 0; |
954 | } | |
955 | ||
6829c878 | 956 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
957 | err = __cfg80211_mlme_deauth(rdev, dev, |
958 | wdev->conn->params.bssid, | |
d5cdfacb | 959 | NULL, 0, reason, false); |
6829c878 JB |
960 | if (err) |
961 | return err; | |
b23aa676 SO |
962 | } else { |
963 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); | |
964 | if (err) | |
965 | return err; | |
966 | } | |
967 | ||
6829c878 | 968 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 969 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 970 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
971 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
972 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 973 | wextev, NULL); |
b23aa676 SO |
974 | |
975 | return 0; | |
976 | } | |
19957bb3 | 977 | |
667503dd JB |
978 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
979 | struct net_device *dev, | |
980 | u16 reason, bool wextev) | |
981 | { | |
982 | int err; | |
983 | ||
984 | wdev_lock(dev->ieee80211_ptr); | |
985 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
986 | wdev_unlock(dev->ieee80211_ptr); | |
987 | ||
988 | return err; | |
989 | } | |
990 | ||
19957bb3 JB |
991 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
992 | { | |
993 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
994 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
995 | u8 bssid[ETH_ALEN]; | |
996 | ||
667503dd JB |
997 | ASSERT_WDEV_LOCK(wdev); |
998 | ||
19957bb3 JB |
999 | if (!wdev->conn) |
1000 | return; | |
1001 | ||
1002 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
1003 | return; | |
1004 | ||
1005 | /* | |
1006 | * Ok, so the association was made by this SME -- we don't | |
1007 | * want it any more so deauthenticate too. | |
1008 | */ | |
1009 | ||
1010 | if (!wdev->auth_bsses[idx]) | |
1011 | return; | |
1012 | ||
1013 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); | |
ec3f1490 | 1014 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
d5cdfacb JM |
1015 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING, |
1016 | false)) { | |
19957bb3 JB |
1017 | /* whatever -- assume gone anyway */ |
1018 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); | |
1019 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); | |
1020 | wdev->auth_bsses[idx] = NULL; | |
1021 | } | |
1022 | } |