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Commit | Line | Data |
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b23aa676 SO |
1 | /* |
2 | * SME code for cfg80211's connect emulation. | |
3 | * | |
4 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
5 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
6 | */ | |
7 | ||
8 | #include <linux/etherdevice.h> | |
9 | #include <linux/if_arp.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
b23aa676 | 11 | #include <linux/workqueue.h> |
a9a11622 JB |
12 | #include <linux/wireless.h> |
13 | #include <net/iw_handler.h> | |
b23aa676 SO |
14 | #include <net/cfg80211.h> |
15 | #include <net/rtnetlink.h> | |
16 | #include "nl80211.h" | |
8b19e6ca | 17 | #include "reg.h" |
b23aa676 | 18 | |
6829c878 JB |
19 | struct cfg80211_conn { |
20 | struct cfg80211_connect_params params; | |
21 | /* these are sub-states of the _CONNECTING sme_state */ | |
22 | enum { | |
23 | CFG80211_CONN_IDLE, | |
24 | CFG80211_CONN_SCANNING, | |
25 | CFG80211_CONN_SCAN_AGAIN, | |
26 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
27 | CFG80211_CONN_AUTHENTICATING, | |
28 | CFG80211_CONN_ASSOCIATE_NEXT, | |
29 | CFG80211_CONN_ASSOCIATING, | |
7d930bc3 | 30 | CFG80211_CONN_DEAUTH_ASSOC_FAIL, |
6829c878 | 31 | } state; |
f401a6f7 | 32 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
33 | u8 *ie; |
34 | size_t ie_len; | |
f401a6f7 | 35 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
36 | }; |
37 | ||
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; | |
e3081501 RM |
113 | struct ieee80211_supported_band *bands; |
114 | struct ieee80211_channel *channel; | |
6829c878 JB |
115 | |
116 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
117 | bands = wdev->wiphy->bands[band]; |
118 | if (!bands) | |
6829c878 | 119 | continue; |
e3081501 RM |
120 | for (j = 0; j < bands->n_channels; j++) { |
121 | channel = &bands->channels[j]; | |
122 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
123 | continue; | |
124 | request->channels[i++] = channel; | |
125 | } | |
126 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 127 | } |
e3081501 | 128 | n_channels = i; |
6829c878 JB |
129 | } |
130 | request->n_channels = n_channels; | |
5ba63533 | 131 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
132 | request->n_ssids = 1; |
133 | ||
134 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
135 | wdev->conn->params.ssid_len); | |
136 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
137 | ||
463d0183 | 138 | request->dev = wdev->netdev; |
79c97e97 | 139 | request->wiphy = &rdev->wiphy; |
6829c878 | 140 | |
79c97e97 | 141 | rdev->scan_req = request; |
6829c878 | 142 | |
79c97e97 | 143 | err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request); |
6829c878 JB |
144 | if (!err) { |
145 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
79c97e97 | 146 | nl80211_send_scan_start(rdev, wdev->netdev); |
463d0183 | 147 | dev_hold(wdev->netdev); |
6829c878 | 148 | } else { |
79c97e97 | 149 | rdev->scan_req = NULL; |
6829c878 JB |
150 | kfree(request); |
151 | } | |
152 | return err; | |
153 | } | |
154 | ||
155 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
156 | { | |
79c97e97 | 157 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 158 | struct cfg80211_connect_params *params; |
f401a6f7 | 159 | const u8 *prev_bssid = NULL; |
19957bb3 | 160 | int err; |
6829c878 | 161 | |
667503dd JB |
162 | ASSERT_WDEV_LOCK(wdev); |
163 | ||
6829c878 JB |
164 | if (!wdev->conn) |
165 | return 0; | |
166 | ||
19957bb3 JB |
167 | params = &wdev->conn->params; |
168 | ||
6829c878 JB |
169 | switch (wdev->conn->state) { |
170 | case CFG80211_CONN_SCAN_AGAIN: | |
171 | return cfg80211_conn_scan(wdev); | |
172 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 173 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 174 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 175 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
176 | params->channel, params->auth_type, |
177 | params->bssid, | |
178 | params->ssid, params->ssid_len, | |
fffd0934 JB |
179 | NULL, 0, |
180 | params->key, params->key_len, | |
d5cdfacb | 181 | params->key_idx, false); |
6829c878 | 182 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 183 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 184 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
185 | if (wdev->conn->prev_bssid_valid) |
186 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 187 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 188 | params->channel, params->bssid, |
f401a6f7 | 189 | prev_bssid, |
667503dd JB |
190 | params->ssid, params->ssid_len, |
191 | params->ie, params->ie_len, | |
192 | false, ¶ms->crypto); | |
19957bb3 | 193 | if (err) |
79c97e97 | 194 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd | 195 | NULL, 0, |
d5cdfacb JM |
196 | WLAN_REASON_DEAUTH_LEAVING, |
197 | false); | |
19957bb3 | 198 | return err; |
7d930bc3 JB |
199 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
200 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
201 | NULL, 0, | |
d5cdfacb | 202 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
203 | /* return an error so that we call __cfg80211_connect_result() */ |
204 | return -EINVAL; | |
6829c878 JB |
205 | default: |
206 | return 0; | |
207 | } | |
208 | } | |
209 | ||
210 | void cfg80211_conn_work(struct work_struct *work) | |
211 | { | |
79c97e97 | 212 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
213 | container_of(work, struct cfg80211_registered_device, conn_work); |
214 | struct wireless_dev *wdev; | |
7400f42e | 215 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
216 | |
217 | rtnl_lock(); | |
79c97e97 JB |
218 | cfg80211_lock_rdev(rdev); |
219 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 220 | |
79c97e97 | 221 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
667503dd JB |
222 | wdev_lock(wdev); |
223 | if (!netif_running(wdev->netdev)) { | |
224 | wdev_unlock(wdev); | |
6829c878 | 225 | continue; |
667503dd JB |
226 | } |
227 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
228 | wdev_unlock(wdev); | |
6829c878 | 229 | continue; |
667503dd | 230 | } |
7400f42e JB |
231 | if (wdev->conn->params.bssid) { |
232 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
233 | bssid = bssid_buf; | |
234 | } | |
6829c878 | 235 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 236 | __cfg80211_connect_result( |
7d930bc3 | 237 | wdev->netdev, bssid, |
667503dd JB |
238 | NULL, 0, NULL, 0, |
239 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 240 | false, NULL); |
667503dd | 241 | wdev_unlock(wdev); |
6829c878 JB |
242 | } |
243 | ||
79c97e97 JB |
244 | mutex_unlock(&rdev->devlist_mtx); |
245 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
246 | rtnl_unlock(); |
247 | } | |
248 | ||
bbac31f4 | 249 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 250 | { |
79c97e97 | 251 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
252 | struct cfg80211_bss *bss; |
253 | u16 capa = WLAN_CAPABILITY_ESS; | |
254 | ||
667503dd JB |
255 | ASSERT_WDEV_LOCK(wdev); |
256 | ||
6829c878 JB |
257 | if (wdev->conn->params.privacy) |
258 | capa |= WLAN_CAPABILITY_PRIVACY; | |
259 | ||
ed9d0102 JM |
260 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
261 | wdev->conn->params.bssid, | |
6829c878 JB |
262 | wdev->conn->params.ssid, |
263 | wdev->conn->params.ssid_len, | |
264 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
265 | capa); | |
6829c878 | 266 | if (!bss) |
bbac31f4 | 267 | return NULL; |
6829c878 JB |
268 | |
269 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
270 | wdev->conn->params.bssid = wdev->conn->bssid; | |
271 | wdev->conn->params.channel = bss->channel; | |
272 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 273 | schedule_work(&rdev->conn_work); |
6829c878 | 274 | |
bbac31f4 | 275 | return bss; |
6829c878 JB |
276 | } |
277 | ||
667503dd | 278 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
279 | { |
280 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 281 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 282 | struct cfg80211_bss *bss; |
6829c878 | 283 | |
667503dd JB |
284 | ASSERT_WDEV_LOCK(wdev); |
285 | ||
6829c878 JB |
286 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
287 | return; | |
288 | ||
d4b1a687 | 289 | if (!wdev->conn) |
6829c878 JB |
290 | return; |
291 | ||
292 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
293 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
294 | return; | |
295 | ||
bbac31f4 JB |
296 | bss = cfg80211_get_conn_bss(wdev); |
297 | if (bss) { | |
298 | cfg80211_put_bss(bss); | |
299 | } else { | |
6829c878 JB |
300 | /* not found */ |
301 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 302 | schedule_work(&rdev->conn_work); |
6829c878 | 303 | else |
667503dd JB |
304 | __cfg80211_connect_result( |
305 | wdev->netdev, | |
306 | wdev->conn->params.bssid, | |
307 | NULL, 0, NULL, 0, | |
308 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 309 | false, NULL); |
6829c878 JB |
310 | } |
311 | } | |
312 | ||
667503dd JB |
313 | void cfg80211_sme_scan_done(struct net_device *dev) |
314 | { | |
315 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
316 | ||
59bbb6f7 | 317 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
318 | wdev_lock(wdev); |
319 | __cfg80211_sme_scan_done(dev); | |
320 | wdev_unlock(wdev); | |
59bbb6f7 | 321 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
322 | } |
323 | ||
324 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
325 | const u8 *buf, size_t len) | |
6829c878 JB |
326 | { |
327 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
328 | struct wiphy *wiphy = wdev->wiphy; | |
329 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
330 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
331 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
332 | ||
667503dd JB |
333 | ASSERT_WDEV_LOCK(wdev); |
334 | ||
6829c878 JB |
335 | /* should only RX auth frames when connecting */ |
336 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
337 | return; | |
338 | ||
339 | if (WARN_ON(!wdev->conn)) | |
340 | return; | |
341 | ||
342 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
343 | wdev->conn->auto_auth && | |
344 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
345 | /* select automatically between only open, shared, leap */ | |
346 | switch (wdev->conn->params.auth_type) { | |
347 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
348 | if (wdev->connect_keys) |
349 | wdev->conn->params.auth_type = | |
350 | NL80211_AUTHTYPE_SHARED_KEY; | |
351 | else | |
352 | wdev->conn->params.auth_type = | |
353 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
354 | break; |
355 | case NL80211_AUTHTYPE_SHARED_KEY: | |
356 | wdev->conn->params.auth_type = | |
357 | NL80211_AUTHTYPE_NETWORK_EAP; | |
358 | break; | |
359 | default: | |
360 | /* huh? */ | |
361 | wdev->conn->params.auth_type = | |
362 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
363 | break; | |
364 | } | |
365 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
366 | schedule_work(&rdev->conn_work); | |
19957bb3 | 367 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 368 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 369 | status_code, false, NULL); |
19957bb3 | 370 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
371 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
372 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
373 | schedule_work(&rdev->conn_work); | |
374 | } | |
375 | } | |
b23aa676 | 376 | |
f401a6f7 JB |
377 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
378 | { | |
379 | struct wiphy *wiphy = wdev->wiphy; | |
380 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
381 | ||
382 | if (WARN_ON(!wdev->conn)) | |
383 | return false; | |
384 | ||
385 | if (!wdev->conn->prev_bssid_valid) | |
386 | return false; | |
387 | ||
388 | /* | |
389 | * Some stupid APs don't accept reassoc, so we | |
390 | * need to fall back to trying regular assoc. | |
391 | */ | |
392 | wdev->conn->prev_bssid_valid = false; | |
393 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
394 | schedule_work(&rdev->conn_work); | |
395 | ||
396 | return true; | |
397 | } | |
398 | ||
7d930bc3 JB |
399 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
400 | { | |
401 | struct wiphy *wiphy = wdev->wiphy; | |
402 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
403 | ||
404 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
405 | schedule_work(&rdev->conn_work); | |
406 | } | |
407 | ||
667503dd JB |
408 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
409 | const u8 *req_ie, size_t req_ie_len, | |
410 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
411 | u16 status, bool wextev, |
412 | struct cfg80211_bss *bss) | |
b23aa676 SO |
413 | { |
414 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8b19e6ca | 415 | u8 *country_ie; |
3d23e349 | 416 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
417 | union iwreq_data wrqu; |
418 | #endif | |
419 | ||
667503dd JB |
420 | ASSERT_WDEV_LOCK(wdev); |
421 | ||
074ac8df JB |
422 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
423 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
424 | return; |
425 | ||
f7969969 | 426 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
427 | return; |
428 | ||
429 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 430 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
431 | resp_ie, resp_ie_len, |
432 | status, GFP_KERNEL); | |
e45cd82a | 433 | |
3d23e349 | 434 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
435 | if (wextev) { |
436 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
437 | memset(&wrqu, 0, sizeof(wrqu)); | |
438 | wrqu.data.length = req_ie_len; | |
3409ff77 | 439 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
440 | } |
441 | ||
442 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
443 | memset(&wrqu, 0, sizeof(wrqu)); | |
444 | wrqu.data.length = resp_ie_len; | |
445 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
446 | } | |
447 | ||
448 | memset(&wrqu, 0, sizeof(wrqu)); | |
449 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 450 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 451 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
452 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
453 | wdev->wext.prev_bssid_valid = true; | |
454 | } | |
e45cd82a JB |
455 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
456 | } | |
457 | #endif | |
458 | ||
df7fc0f9 JB |
459 | if (wdev->current_bss) { |
460 | cfg80211_unhold_bss(wdev->current_bss); | |
461 | cfg80211_put_bss(&wdev->current_bss->pub); | |
462 | wdev->current_bss = NULL; | |
463 | } | |
464 | ||
19957bb3 JB |
465 | if (wdev->conn) |
466 | wdev->conn->state = CFG80211_CONN_IDLE; | |
467 | ||
fffd0934 | 468 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 469 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
470 | if (wdev->conn) |
471 | kfree(wdev->conn->ie); | |
19957bb3 JB |
472 | kfree(wdev->conn); |
473 | wdev->conn = NULL; | |
fffd0934 JB |
474 | kfree(wdev->connect_keys); |
475 | wdev->connect_keys = NULL; | |
8dadadb7 | 476 | wdev->ssid_len = 0; |
fffd0934 | 477 | return; |
b23aa676 | 478 | } |
fffd0934 | 479 | |
df7fc0f9 | 480 | if (!bss) |
ed9d0102 JM |
481 | bss = cfg80211_get_bss(wdev->wiphy, |
482 | wdev->conn ? wdev->conn->params.channel : | |
483 | NULL, | |
484 | bssid, | |
df7fc0f9 JB |
485 | wdev->ssid, wdev->ssid_len, |
486 | WLAN_CAPABILITY_ESS, | |
487 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
488 | |
489 | if (WARN_ON(!bss)) | |
490 | return; | |
491 | ||
492 | cfg80211_hold_bss(bss_from_pub(bss)); | |
493 | wdev->current_bss = bss_from_pub(bss); | |
494 | ||
fffd0934 JB |
495 | wdev->sme_state = CFG80211_SME_CONNECTED; |
496 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca LR |
497 | |
498 | country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
499 | ||
500 | if (!country_ie) | |
501 | return; | |
502 | ||
503 | /* | |
504 | * ieee80211_bss_get_ie() ensures we can access: | |
505 | * - country_ie + 2, the start of the country ie data, and | |
506 | * - and country_ie[1] which is the IE length | |
507 | */ | |
508 | regulatory_hint_11d(wdev->wiphy, | |
84920e3e | 509 | bss->channel->band, |
8b19e6ca LR |
510 | country_ie + 2, |
511 | country_ie[1]); | |
b23aa676 | 512 | } |
f2129354 JB |
513 | |
514 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
515 | const u8 *req_ie, size_t req_ie_len, | |
516 | const u8 *resp_ie, size_t resp_ie_len, | |
517 | u16 status, gfp_t gfp) | |
518 | { | |
667503dd JB |
519 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
520 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
521 | struct cfg80211_event *ev; | |
522 | unsigned long flags; | |
523 | ||
f7969969 JB |
524 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
525 | ||
667503dd JB |
526 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
527 | if (!ev) | |
528 | return; | |
529 | ||
530 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
531 | if (bssid) |
532 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
533 | if (req_ie_len) { |
534 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
535 | ev->cr.req_ie_len = req_ie_len; | |
536 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
537 | } | |
538 | if (resp_ie_len) { | |
539 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
540 | ev->cr.resp_ie_len = resp_ie_len; | |
541 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
542 | } | |
667503dd JB |
543 | ev->cr.status = status; |
544 | ||
545 | spin_lock_irqsave(&wdev->event_lock, flags); | |
546 | list_add_tail(&ev->list, &wdev->event_list); | |
547 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 548 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 549 | } |
b23aa676 SO |
550 | EXPORT_SYMBOL(cfg80211_connect_result); |
551 | ||
ed9d0102 JM |
552 | void __cfg80211_roamed(struct wireless_dev *wdev, |
553 | struct ieee80211_channel *channel, | |
554 | const u8 *bssid, | |
667503dd JB |
555 | const u8 *req_ie, size_t req_ie_len, |
556 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 557 | { |
b23aa676 | 558 | struct cfg80211_bss *bss; |
3d23e349 | 559 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
560 | union iwreq_data wrqu; |
561 | #endif | |
562 | ||
667503dd JB |
563 | ASSERT_WDEV_LOCK(wdev); |
564 | ||
074ac8df JB |
565 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
566 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
567 | return; |
568 | ||
f7969969 | 569 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
570 | return; |
571 | ||
572 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
573 | if (WARN_ON(!wdev->current_bss)) { | |
574 | return; | |
575 | } | |
576 | ||
577 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 578 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
579 | wdev->current_bss = NULL; |
580 | ||
ed9d0102 | 581 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, |
b23aa676 SO |
582 | wdev->ssid, wdev->ssid_len, |
583 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
584 | ||
585 | if (WARN_ON(!bss)) | |
586 | return; | |
587 | ||
19957bb3 JB |
588 | cfg80211_hold_bss(bss_from_pub(bss)); |
589 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 590 | |
667503dd JB |
591 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
592 | req_ie, req_ie_len, resp_ie, resp_ie_len, | |
593 | GFP_KERNEL); | |
b23aa676 | 594 | |
3d23e349 | 595 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
596 | if (req_ie) { |
597 | memset(&wrqu, 0, sizeof(wrqu)); | |
598 | wrqu.data.length = req_ie_len; | |
3409ff77 | 599 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 600 | &wrqu, req_ie); |
b23aa676 SO |
601 | } |
602 | ||
603 | if (resp_ie) { | |
604 | memset(&wrqu, 0, sizeof(wrqu)); | |
605 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
606 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
607 | &wrqu, resp_ie); | |
b23aa676 SO |
608 | } |
609 | ||
610 | memset(&wrqu, 0, sizeof(wrqu)); | |
611 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
612 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
f401a6f7 JB |
613 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
614 | wdev->wext.prev_bssid_valid = true; | |
667503dd | 615 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 SO |
616 | #endif |
617 | } | |
667503dd | 618 | |
ed9d0102 JM |
619 | void cfg80211_roamed(struct net_device *dev, |
620 | struct ieee80211_channel *channel, | |
621 | const u8 *bssid, | |
667503dd JB |
622 | const u8 *req_ie, size_t req_ie_len, |
623 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
624 | { | |
625 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
626 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
627 | struct cfg80211_event *ev; | |
628 | unsigned long flags; | |
629 | ||
f7969969 JB |
630 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
631 | ||
667503dd JB |
632 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
633 | if (!ev) | |
634 | return; | |
635 | ||
636 | ev->type = EVENT_ROAMED; | |
ed9d0102 | 637 | ev->rm.channel = channel; |
667503dd JB |
638 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); |
639 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); | |
640 | ev->rm.req_ie_len = req_ie_len; | |
641 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
642 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
643 | ev->rm.resp_ie_len = resp_ie_len; | |
644 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
645 | ||
646 | spin_lock_irqsave(&wdev->event_lock, flags); | |
647 | list_add_tail(&ev->list, &wdev->event_list); | |
648 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 649 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 650 | } |
b23aa676 SO |
651 | EXPORT_SYMBOL(cfg80211_roamed); |
652 | ||
667503dd | 653 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 654 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
655 | { |
656 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
657 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
658 | int i; | |
3d23e349 | 659 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
660 | union iwreq_data wrqu; |
661 | #endif | |
662 | ||
667503dd JB |
663 | ASSERT_WDEV_LOCK(wdev); |
664 | ||
074ac8df JB |
665 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
666 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
667 | return; |
668 | ||
f7969969 | 669 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
670 | return; |
671 | ||
672 | if (wdev->current_bss) { | |
673 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 674 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
675 | } |
676 | ||
677 | wdev->current_bss = NULL; | |
678 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 679 | wdev->ssid_len = 0; |
b23aa676 | 680 | |
6829c878 | 681 | if (wdev->conn) { |
b6f0b639 JB |
682 | const u8 *bssid; |
683 | int ret; | |
684 | ||
6829c878 JB |
685 | kfree(wdev->conn->ie); |
686 | wdev->conn->ie = NULL; | |
19957bb3 JB |
687 | kfree(wdev->conn); |
688 | wdev->conn = NULL; | |
b6f0b639 JB |
689 | |
690 | /* | |
691 | * If this disconnect was due to a disassoc, we | |
692 | * we might still have an auth BSS around. For | |
693 | * the userspace SME that's currently expected, | |
694 | * but for the kernel SME (nl80211 CONNECT or | |
695 | * wireless extensions) we want to clear up all | |
696 | * state. | |
697 | */ | |
698 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
699 | if (!wdev->auth_bsses[i]) | |
700 | continue; | |
701 | bssid = wdev->auth_bsses[i]->pub.bssid; | |
702 | ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, | |
d5cdfacb JM |
703 | WLAN_REASON_DEAUTH_LEAVING, |
704 | false); | |
b6f0b639 JB |
705 | WARN(ret, "deauth failed: %d\n", ret); |
706 | } | |
6829c878 JB |
707 | } |
708 | ||
fffd0934 JB |
709 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
710 | ||
711 | /* | |
712 | * Delete all the keys ... pairwise keys can't really | |
713 | * exist any more anyway, but default keys might. | |
714 | */ | |
715 | if (rdev->ops->del_key) | |
716 | for (i = 0; i < 6; i++) | |
e31b8213 | 717 | rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); |
b23aa676 | 718 | |
3d23e349 | 719 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
720 | memset(&wrqu, 0, sizeof(wrqu)); |
721 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
722 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 723 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 724 | #endif |
09d989d1 LR |
725 | |
726 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
727 | } |
728 | ||
729 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
730 | u8 *ie, size_t ie_len, gfp_t gfp) | |
731 | { | |
667503dd JB |
732 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
733 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
734 | struct cfg80211_event *ev; | |
735 | unsigned long flags; | |
736 | ||
f7969969 JB |
737 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
738 | ||
667503dd JB |
739 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
740 | if (!ev) | |
741 | return; | |
742 | ||
743 | ev->type = EVENT_DISCONNECTED; | |
744 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
745 | ev->dc.ie_len = ie_len; | |
746 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
747 | ev->dc.reason = reason; | |
748 | ||
749 | spin_lock_irqsave(&wdev->event_lock, flags); | |
750 | list_add_tail(&ev->list, &wdev->event_list); | |
751 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 752 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
753 | } |
754 | EXPORT_SYMBOL(cfg80211_disconnected); | |
755 | ||
667503dd JB |
756 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
757 | struct net_device *dev, | |
fffd0934 | 758 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
759 | struct cfg80211_cached_keys *connkeys, |
760 | const u8 *prev_bssid) | |
b23aa676 | 761 | { |
b23aa676 | 762 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 763 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
764 | int err; |
765 | ||
766 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
767 | |
768 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
769 | return -EALREADY; | |
770 | ||
fffd0934 JB |
771 | if (WARN_ON(wdev->connect_keys)) { |
772 | kfree(wdev->connect_keys); | |
773 | wdev->connect_keys = NULL; | |
774 | } | |
775 | ||
776 | if (connkeys && connkeys->def >= 0) { | |
777 | int idx; | |
bcba8eae | 778 | u32 cipher; |
fffd0934 JB |
779 | |
780 | idx = connkeys->def; | |
bcba8eae | 781 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 782 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
783 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
784 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
785 | connect->key_idx = idx; |
786 | connect->key = connkeys->params[idx].key; | |
787 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
788 | |
789 | /* | |
790 | * If ciphers are not set (e.g. when going through | |
791 | * iwconfig), we have to set them appropriately here. | |
792 | */ | |
793 | if (connect->crypto.cipher_group == 0) | |
794 | connect->crypto.cipher_group = cipher; | |
795 | ||
796 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
797 | connect->crypto.n_ciphers_pairwise = 1; | |
798 | connect->crypto.ciphers_pairwise[0] = cipher; | |
799 | } | |
fffd0934 JB |
800 | } |
801 | } | |
802 | ||
b23aa676 | 803 | if (!rdev->ops->connect) { |
6829c878 JB |
804 | if (!rdev->ops->auth || !rdev->ops->assoc) |
805 | return -EOPNOTSUPP; | |
806 | ||
19957bb3 JB |
807 | if (WARN_ON(wdev->conn)) |
808 | return -EINPROGRESS; | |
809 | ||
810 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
811 | if (!wdev->conn) | |
812 | return -ENOMEM; | |
6829c878 JB |
813 | |
814 | /* | |
815 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
816 | */ | |
817 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
818 | if (connect->bssid) { | |
819 | wdev->conn->params.bssid = wdev->conn->bssid; | |
820 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
821 | } | |
822 | ||
823 | if (connect->ie) { | |
824 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
825 | GFP_KERNEL); | |
826 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
827 | if (!wdev->conn->ie) { |
828 | kfree(wdev->conn); | |
829 | wdev->conn = NULL; | |
6829c878 | 830 | return -ENOMEM; |
19957bb3 | 831 | } |
6829c878 JB |
832 | } |
833 | ||
834 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
835 | wdev->conn->auto_auth = true; | |
836 | /* start with open system ... should mostly work */ | |
837 | wdev->conn->params.auth_type = | |
838 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
839 | } else { | |
840 | wdev->conn->auto_auth = false; | |
841 | } | |
842 | ||
843 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
844 | wdev->ssid_len = connect->ssid_len; | |
845 | wdev->conn->params.ssid = wdev->ssid; | |
846 | wdev->conn->params.ssid_len = connect->ssid_len; | |
847 | ||
8bb89485 JB |
848 | /* see if we have the bss already */ |
849 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
850 | |
851 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 852 | wdev->connect_keys = connkeys; |
6829c878 | 853 | |
f401a6f7 JB |
854 | if (prev_bssid) { |
855 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
856 | wdev->conn->prev_bssid_valid = true; | |
857 | } | |
858 | ||
bbac31f4 JB |
859 | /* we're good if we have a matching bss struct */ |
860 | if (bss) { | |
6829c878 JB |
861 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
862 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 863 | cfg80211_put_bss(bss); |
6829c878 JB |
864 | } else { |
865 | /* otherwise we'll need to scan for the AP first */ | |
866 | err = cfg80211_conn_scan(wdev); | |
867 | /* | |
868 | * If we can't scan right now, then we need to scan again | |
869 | * after the current scan finished, since the parameters | |
870 | * changed (unless we find a good AP anyway). | |
871 | */ | |
872 | if (err == -EBUSY) { | |
873 | err = 0; | |
874 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
875 | } | |
876 | } | |
19957bb3 | 877 | if (err) { |
415ad1ef | 878 | kfree(wdev->conn->ie); |
19957bb3 JB |
879 | kfree(wdev->conn); |
880 | wdev->conn = NULL; | |
6829c878 | 881 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 882 | wdev->connect_keys = NULL; |
8dadadb7 | 883 | wdev->ssid_len = 0; |
19957bb3 | 884 | } |
6829c878 JB |
885 | |
886 | return err; | |
b23aa676 SO |
887 | } else { |
888 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 889 | wdev->connect_keys = connkeys; |
b23aa676 SO |
890 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
891 | if (err) { | |
fffd0934 | 892 | wdev->connect_keys = NULL; |
b23aa676 SO |
893 | wdev->sme_state = CFG80211_SME_IDLE; |
894 | return err; | |
895 | } | |
b23aa676 | 896 | |
6829c878 JB |
897 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
898 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 899 | |
6829c878 JB |
900 | return 0; |
901 | } | |
b23aa676 SO |
902 | } |
903 | ||
667503dd JB |
904 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
905 | struct net_device *dev, | |
fffd0934 JB |
906 | struct cfg80211_connect_params *connect, |
907 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
908 | { |
909 | int err; | |
910 | ||
59bbb6f7 | 911 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 912 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 913 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 914 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 915 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
916 | |
917 | return err; | |
918 | } | |
919 | ||
920 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
921 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 922 | { |
6829c878 | 923 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
924 | int err; |
925 | ||
667503dd JB |
926 | ASSERT_WDEV_LOCK(wdev); |
927 | ||
6829c878 JB |
928 | if (wdev->sme_state == CFG80211_SME_IDLE) |
929 | return -EINVAL; | |
930 | ||
fffd0934 JB |
931 | kfree(wdev->connect_keys); |
932 | wdev->connect_keys = NULL; | |
933 | ||
b23aa676 | 934 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
935 | if (!rdev->ops->deauth) |
936 | return -EOPNOTSUPP; | |
6829c878 | 937 | |
19957bb3 JB |
938 | /* was it connected by userspace SME? */ |
939 | if (!wdev->conn) { | |
940 | cfg80211_mlme_down(rdev, dev); | |
941 | return 0; | |
942 | } | |
6829c878 JB |
943 | |
944 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
945 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
946 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
947 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 948 | kfree(wdev->conn->ie); |
19957bb3 JB |
949 | kfree(wdev->conn); |
950 | wdev->conn = NULL; | |
8dadadb7 | 951 | wdev->ssid_len = 0; |
6829c878 JB |
952 | return 0; |
953 | } | |
954 | ||
6829c878 | 955 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
956 | err = __cfg80211_mlme_deauth(rdev, dev, |
957 | wdev->conn->params.bssid, | |
d5cdfacb | 958 | NULL, 0, reason, false); |
6829c878 JB |
959 | if (err) |
960 | return err; | |
b23aa676 SO |
961 | } else { |
962 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); | |
963 | if (err) | |
964 | return err; | |
965 | } | |
966 | ||
6829c878 | 967 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 968 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 969 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
970 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
971 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 972 | wextev, NULL); |
b23aa676 SO |
973 | |
974 | return 0; | |
975 | } | |
19957bb3 | 976 | |
667503dd JB |
977 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
978 | struct net_device *dev, | |
979 | u16 reason, bool wextev) | |
980 | { | |
981 | int err; | |
982 | ||
983 | wdev_lock(dev->ieee80211_ptr); | |
984 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
985 | wdev_unlock(dev->ieee80211_ptr); | |
986 | ||
987 | return err; | |
988 | } | |
989 | ||
19957bb3 JB |
990 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
991 | { | |
992 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
993 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
994 | u8 bssid[ETH_ALEN]; | |
995 | ||
667503dd JB |
996 | ASSERT_WDEV_LOCK(wdev); |
997 | ||
19957bb3 JB |
998 | if (!wdev->conn) |
999 | return; | |
1000 | ||
1001 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
1002 | return; | |
1003 | ||
1004 | /* | |
1005 | * Ok, so the association was made by this SME -- we don't | |
1006 | * want it any more so deauthenticate too. | |
1007 | */ | |
1008 | ||
1009 | if (!wdev->auth_bsses[idx]) | |
1010 | return; | |
1011 | ||
1012 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); | |
ec3f1490 | 1013 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
d5cdfacb JM |
1014 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING, |
1015 | false)) { | |
19957bb3 JB |
1016 | /* whatever -- assume gone anyway */ |
1017 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); | |
1018 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); | |
1019 | wdev->auth_bsses[idx] = NULL; | |
1020 | } | |
1021 | } |