]>
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 | 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" |
e35e4d28 | 19 | #include "rdev-ops.h" |
b23aa676 | 20 | |
6829c878 JB |
21 | struct cfg80211_conn { |
22 | struct cfg80211_connect_params params; | |
23 | /* these are sub-states of the _CONNECTING sme_state */ | |
24 | enum { | |
25 | CFG80211_CONN_IDLE, | |
26 | CFG80211_CONN_SCANNING, | |
27 | CFG80211_CONN_SCAN_AGAIN, | |
28 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
29 | CFG80211_CONN_AUTHENTICATING, | |
30 | CFG80211_CONN_ASSOCIATE_NEXT, | |
31 | CFG80211_CONN_ASSOCIATING, | |
7d930bc3 | 32 | CFG80211_CONN_DEAUTH_ASSOC_FAIL, |
6829c878 | 33 | } state; |
f401a6f7 | 34 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
6829c878 JB |
35 | u8 *ie; |
36 | size_t ie_len; | |
f401a6f7 | 37 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
38 | }; |
39 | ||
20925fee | 40 | static bool cfg80211_is_all_idle(void) |
09d989d1 LR |
41 | { |
42 | struct cfg80211_registered_device *rdev; | |
43 | struct wireless_dev *wdev; | |
44 | bool is_all_idle = true; | |
45 | ||
46 | mutex_lock(&cfg80211_mutex); | |
47 | ||
48 | /* | |
49 | * All devices must be idle as otherwise if you are actively | |
50 | * scanning some new beacon hints could be learned and would | |
51 | * count as new regulatory hints. | |
52 | */ | |
53 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
54 | cfg80211_lock_rdev(rdev); | |
89a54e48 | 55 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
09d989d1 LR |
56 | wdev_lock(wdev); |
57 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
58 | is_all_idle = false; | |
59 | wdev_unlock(wdev); | |
60 | } | |
61 | cfg80211_unlock_rdev(rdev); | |
62 | } | |
63 | ||
64 | mutex_unlock(&cfg80211_mutex); | |
65 | ||
66 | return is_all_idle; | |
67 | } | |
68 | ||
69 | static void disconnect_work(struct work_struct *work) | |
70 | { | |
71 | if (!cfg80211_is_all_idle()) | |
72 | return; | |
73 | ||
74 | regulatory_hint_disconnect(); | |
75 | } | |
76 | ||
77 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
6829c878 JB |
78 | |
79 | static int cfg80211_conn_scan(struct wireless_dev *wdev) | |
80 | { | |
79c97e97 | 81 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
82 | struct cfg80211_scan_request *request; |
83 | int n_channels, err; | |
84 | ||
85 | ASSERT_RTNL(); | |
79c97e97 | 86 | ASSERT_RDEV_LOCK(rdev); |
667503dd | 87 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 88 | |
79c97e97 | 89 | if (rdev->scan_req) |
6829c878 JB |
90 | return -EBUSY; |
91 | ||
92 | if (wdev->conn->params.channel) { | |
93 | n_channels = 1; | |
94 | } else { | |
95 | enum ieee80211_band band; | |
96 | n_channels = 0; | |
97 | ||
98 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
99 | if (!wdev->wiphy->bands[band]) | |
100 | continue; | |
101 | n_channels += wdev->wiphy->bands[band]->n_channels; | |
102 | } | |
103 | } | |
104 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + | |
105 | sizeof(request->channels[0]) * n_channels, | |
106 | GFP_KERNEL); | |
107 | if (!request) | |
108 | return -ENOMEM; | |
109 | ||
6829c878 JB |
110 | if (wdev->conn->params.channel) |
111 | request->channels[0] = wdev->conn->params.channel; | |
112 | else { | |
113 | int i = 0, j; | |
114 | enum ieee80211_band band; | |
e3081501 RM |
115 | struct ieee80211_supported_band *bands; |
116 | struct ieee80211_channel *channel; | |
6829c878 JB |
117 | |
118 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
119 | bands = wdev->wiphy->bands[band]; |
120 | if (!bands) | |
6829c878 | 121 | continue; |
e3081501 RM |
122 | for (j = 0; j < bands->n_channels; j++) { |
123 | channel = &bands->channels[j]; | |
124 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
125 | continue; | |
126 | request->channels[i++] = channel; | |
127 | } | |
128 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 129 | } |
e3081501 | 130 | n_channels = i; |
6829c878 JB |
131 | } |
132 | request->n_channels = n_channels; | |
5ba63533 | 133 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
134 | request->n_ssids = 1; |
135 | ||
136 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
137 | wdev->conn->params.ssid_len); | |
138 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
139 | ||
fd014284 | 140 | request->wdev = wdev; |
79c97e97 | 141 | request->wiphy = &rdev->wiphy; |
15d6030b | 142 | request->scan_start = jiffies; |
6829c878 | 143 | |
79c97e97 | 144 | rdev->scan_req = request; |
6829c878 | 145 | |
e35e4d28 | 146 | err = rdev_scan(rdev, request); |
6829c878 JB |
147 | if (!err) { |
148 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 149 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 150 | dev_hold(wdev->netdev); |
6829c878 | 151 | } else { |
79c97e97 | 152 | rdev->scan_req = NULL; |
6829c878 JB |
153 | kfree(request); |
154 | } | |
155 | return err; | |
156 | } | |
157 | ||
158 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
159 | { | |
79c97e97 | 160 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
19957bb3 | 161 | struct cfg80211_connect_params *params; |
f401a6f7 | 162 | const u8 *prev_bssid = NULL; |
19957bb3 | 163 | int err; |
6829c878 | 164 | |
667503dd JB |
165 | ASSERT_WDEV_LOCK(wdev); |
166 | ||
6829c878 JB |
167 | if (!wdev->conn) |
168 | return 0; | |
169 | ||
19957bb3 JB |
170 | params = &wdev->conn->params; |
171 | ||
6829c878 JB |
172 | switch (wdev->conn->state) { |
173 | case CFG80211_CONN_SCAN_AGAIN: | |
174 | return cfg80211_conn_scan(wdev); | |
175 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
79c97e97 | 176 | BUG_ON(!rdev->ops->auth); |
19957bb3 | 177 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
79c97e97 | 178 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
667503dd JB |
179 | params->channel, params->auth_type, |
180 | params->bssid, | |
181 | params->ssid, params->ssid_len, | |
fffd0934 JB |
182 | NULL, 0, |
183 | params->key, params->key_len, | |
e39e5b5e | 184 | params->key_idx, NULL, 0); |
6829c878 | 185 | case CFG80211_CONN_ASSOCIATE_NEXT: |
79c97e97 | 186 | BUG_ON(!rdev->ops->assoc); |
19957bb3 | 187 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 JB |
188 | if (wdev->conn->prev_bssid_valid) |
189 | prev_bssid = wdev->conn->prev_bssid; | |
79c97e97 | 190 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
667503dd | 191 | params->channel, params->bssid, |
f401a6f7 | 192 | prev_bssid, |
667503dd JB |
193 | params->ssid, params->ssid_len, |
194 | params->ie, params->ie_len, | |
cee00a95 JM |
195 | params->mfp != NL80211_MFP_NO, |
196 | ¶ms->crypto, | |
7e7c8926 BG |
197 | params->flags, ¶ms->ht_capa, |
198 | ¶ms->ht_capa_mask); | |
19957bb3 | 199 | if (err) |
79c97e97 | 200 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
667503dd | 201 | NULL, 0, |
d5cdfacb JM |
202 | WLAN_REASON_DEAUTH_LEAVING, |
203 | false); | |
19957bb3 | 204 | return err; |
7d930bc3 JB |
205 | case CFG80211_CONN_DEAUTH_ASSOC_FAIL: |
206 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
207 | NULL, 0, | |
d5cdfacb | 208 | WLAN_REASON_DEAUTH_LEAVING, false); |
7d930bc3 JB |
209 | /* return an error so that we call __cfg80211_connect_result() */ |
210 | return -EINVAL; | |
6829c878 JB |
211 | default: |
212 | return 0; | |
213 | } | |
214 | } | |
215 | ||
216 | void cfg80211_conn_work(struct work_struct *work) | |
217 | { | |
79c97e97 | 218 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
219 | container_of(work, struct cfg80211_registered_device, conn_work); |
220 | struct wireless_dev *wdev; | |
7400f42e | 221 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
222 | |
223 | rtnl_lock(); | |
79c97e97 JB |
224 | cfg80211_lock_rdev(rdev); |
225 | mutex_lock(&rdev->devlist_mtx); | |
6829c878 | 226 | |
89a54e48 | 227 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
667503dd JB |
228 | wdev_lock(wdev); |
229 | if (!netif_running(wdev->netdev)) { | |
230 | wdev_unlock(wdev); | |
6829c878 | 231 | continue; |
667503dd JB |
232 | } |
233 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { | |
234 | wdev_unlock(wdev); | |
6829c878 | 235 | continue; |
667503dd | 236 | } |
7400f42e JB |
237 | if (wdev->conn->params.bssid) { |
238 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
239 | bssid = bssid_buf; | |
240 | } | |
6829c878 | 241 | if (cfg80211_conn_do_work(wdev)) |
667503dd | 242 | __cfg80211_connect_result( |
7d930bc3 | 243 | wdev->netdev, bssid, |
667503dd JB |
244 | NULL, 0, NULL, 0, |
245 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 246 | false, NULL); |
667503dd | 247 | wdev_unlock(wdev); |
6829c878 JB |
248 | } |
249 | ||
79c97e97 JB |
250 | mutex_unlock(&rdev->devlist_mtx); |
251 | cfg80211_unlock_rdev(rdev); | |
6829c878 JB |
252 | rtnl_unlock(); |
253 | } | |
254 | ||
bbac31f4 | 255 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 256 | { |
79c97e97 | 257 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
6829c878 JB |
258 | struct cfg80211_bss *bss; |
259 | u16 capa = WLAN_CAPABILITY_ESS; | |
260 | ||
667503dd JB |
261 | ASSERT_WDEV_LOCK(wdev); |
262 | ||
6829c878 JB |
263 | if (wdev->conn->params.privacy) |
264 | capa |= WLAN_CAPABILITY_PRIVACY; | |
265 | ||
ed9d0102 JM |
266 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
267 | wdev->conn->params.bssid, | |
6829c878 JB |
268 | wdev->conn->params.ssid, |
269 | wdev->conn->params.ssid_len, | |
270 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, | |
271 | capa); | |
6829c878 | 272 | if (!bss) |
bbac31f4 | 273 | return NULL; |
6829c878 JB |
274 | |
275 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
276 | wdev->conn->params.bssid = wdev->conn->bssid; | |
277 | wdev->conn->params.channel = bss->channel; | |
278 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 279 | schedule_work(&rdev->conn_work); |
6829c878 | 280 | |
bbac31f4 | 281 | return bss; |
6829c878 JB |
282 | } |
283 | ||
667503dd | 284 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
285 | { |
286 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
79c97e97 | 287 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
bbac31f4 | 288 | struct cfg80211_bss *bss; |
6829c878 | 289 | |
667503dd JB |
290 | ASSERT_WDEV_LOCK(wdev); |
291 | ||
6829c878 JB |
292 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
293 | return; | |
294 | ||
d4b1a687 | 295 | if (!wdev->conn) |
6829c878 JB |
296 | return; |
297 | ||
298 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
299 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
300 | return; | |
301 | ||
bbac31f4 JB |
302 | bss = cfg80211_get_conn_bss(wdev); |
303 | if (bss) { | |
304 | cfg80211_put_bss(bss); | |
305 | } else { | |
6829c878 JB |
306 | /* not found */ |
307 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) | |
79c97e97 | 308 | schedule_work(&rdev->conn_work); |
6829c878 | 309 | else |
667503dd JB |
310 | __cfg80211_connect_result( |
311 | wdev->netdev, | |
312 | wdev->conn->params.bssid, | |
313 | NULL, 0, NULL, 0, | |
314 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 315 | false, NULL); |
6829c878 JB |
316 | } |
317 | } | |
318 | ||
667503dd JB |
319 | void cfg80211_sme_scan_done(struct net_device *dev) |
320 | { | |
321 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
322 | ||
59bbb6f7 | 323 | mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
324 | wdev_lock(wdev); |
325 | __cfg80211_sme_scan_done(dev); | |
326 | wdev_unlock(wdev); | |
59bbb6f7 | 327 | mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx); |
667503dd JB |
328 | } |
329 | ||
330 | void cfg80211_sme_rx_auth(struct net_device *dev, | |
331 | const u8 *buf, size_t len) | |
6829c878 JB |
332 | { |
333 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
334 | struct wiphy *wiphy = wdev->wiphy; | |
335 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
336 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; | |
337 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
338 | ||
667503dd JB |
339 | ASSERT_WDEV_LOCK(wdev); |
340 | ||
6829c878 JB |
341 | /* should only RX auth frames when connecting */ |
342 | if (wdev->sme_state != CFG80211_SME_CONNECTING) | |
343 | return; | |
344 | ||
345 | if (WARN_ON(!wdev->conn)) | |
346 | return; | |
347 | ||
348 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
349 | wdev->conn->auto_auth && | |
350 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
351 | /* select automatically between only open, shared, leap */ | |
352 | switch (wdev->conn->params.auth_type) { | |
353 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
354 | if (wdev->connect_keys) |
355 | wdev->conn->params.auth_type = | |
356 | NL80211_AUTHTYPE_SHARED_KEY; | |
357 | else | |
358 | wdev->conn->params.auth_type = | |
359 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
360 | break; |
361 | case NL80211_AUTHTYPE_SHARED_KEY: | |
362 | wdev->conn->params.auth_type = | |
363 | NL80211_AUTHTYPE_NETWORK_EAP; | |
364 | break; | |
365 | default: | |
366 | /* huh? */ | |
367 | wdev->conn->params.auth_type = | |
368 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
369 | break; | |
370 | } | |
371 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
372 | schedule_work(&rdev->conn_work); | |
19957bb3 | 373 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
4bde0f7d | 374 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
df7fc0f9 | 375 | status_code, false, NULL); |
19957bb3 | 376 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
6829c878 JB |
377 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
378 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
379 | schedule_work(&rdev->conn_work); | |
380 | } | |
381 | } | |
b23aa676 | 382 | |
f401a6f7 JB |
383 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev) |
384 | { | |
385 | struct wiphy *wiphy = wdev->wiphy; | |
386 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
387 | ||
388 | if (WARN_ON(!wdev->conn)) | |
389 | return false; | |
390 | ||
391 | if (!wdev->conn->prev_bssid_valid) | |
392 | return false; | |
393 | ||
394 | /* | |
395 | * Some stupid APs don't accept reassoc, so we | |
396 | * need to fall back to trying regular assoc. | |
397 | */ | |
398 | wdev->conn->prev_bssid_valid = false; | |
399 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
400 | schedule_work(&rdev->conn_work); | |
401 | ||
402 | return true; | |
403 | } | |
404 | ||
7d930bc3 JB |
405 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev) |
406 | { | |
407 | struct wiphy *wiphy = wdev->wiphy; | |
408 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
409 | ||
410 | wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL; | |
411 | schedule_work(&rdev->conn_work); | |
412 | } | |
413 | ||
667503dd JB |
414 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
415 | const u8 *req_ie, size_t req_ie_len, | |
416 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
417 | u16 status, bool wextev, |
418 | struct cfg80211_bss *bss) | |
b23aa676 SO |
419 | { |
420 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 421 | const u8 *country_ie; |
3d23e349 | 422 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
423 | union iwreq_data wrqu; |
424 | #endif | |
425 | ||
667503dd JB |
426 | ASSERT_WDEV_LOCK(wdev); |
427 | ||
074ac8df JB |
428 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
429 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
430 | return; |
431 | ||
f7969969 | 432 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
ea416a79 JB |
433 | return; |
434 | ||
435 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, | |
e45cd82a | 436 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
437 | resp_ie, resp_ie_len, |
438 | status, GFP_KERNEL); | |
e45cd82a | 439 | |
3d23e349 | 440 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
441 | if (wextev) { |
442 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
443 | memset(&wrqu, 0, sizeof(wrqu)); | |
444 | wrqu.data.length = req_ie_len; | |
3409ff77 | 445 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
446 | } |
447 | ||
448 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
449 | memset(&wrqu, 0, sizeof(wrqu)); | |
450 | wrqu.data.length = resp_ie_len; | |
451 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
452 | } | |
453 | ||
454 | memset(&wrqu, 0, sizeof(wrqu)); | |
455 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 456 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 457 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
458 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
459 | wdev->wext.prev_bssid_valid = true; | |
460 | } | |
e45cd82a JB |
461 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
462 | } | |
463 | #endif | |
464 | ||
df7fc0f9 JB |
465 | if (wdev->current_bss) { |
466 | cfg80211_unhold_bss(wdev->current_bss); | |
467 | cfg80211_put_bss(&wdev->current_bss->pub); | |
468 | wdev->current_bss = NULL; | |
469 | } | |
470 | ||
19957bb3 JB |
471 | if (wdev->conn) |
472 | wdev->conn->state = CFG80211_CONN_IDLE; | |
473 | ||
fffd0934 | 474 | if (status != WLAN_STATUS_SUCCESS) { |
b23aa676 | 475 | wdev->sme_state = CFG80211_SME_IDLE; |
415ad1ef DK |
476 | if (wdev->conn) |
477 | kfree(wdev->conn->ie); | |
19957bb3 JB |
478 | kfree(wdev->conn); |
479 | wdev->conn = NULL; | |
fffd0934 JB |
480 | kfree(wdev->connect_keys); |
481 | wdev->connect_keys = NULL; | |
8dadadb7 | 482 | wdev->ssid_len = 0; |
95de817b | 483 | cfg80211_put_bss(bss); |
fffd0934 | 484 | return; |
b23aa676 | 485 | } |
fffd0934 | 486 | |
df7fc0f9 | 487 | if (!bss) |
ed9d0102 JM |
488 | bss = cfg80211_get_bss(wdev->wiphy, |
489 | wdev->conn ? wdev->conn->params.channel : | |
490 | NULL, | |
491 | bssid, | |
df7fc0f9 JB |
492 | wdev->ssid, wdev->ssid_len, |
493 | WLAN_CAPABILITY_ESS, | |
494 | WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
495 | |
496 | if (WARN_ON(!bss)) | |
497 | return; | |
498 | ||
499 | cfg80211_hold_bss(bss_from_pub(bss)); | |
500 | wdev->current_bss = bss_from_pub(bss); | |
501 | ||
fffd0934 JB |
502 | wdev->sme_state = CFG80211_SME_CONNECTED; |
503 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca | 504 | |
9caf0364 JB |
505 | rcu_read_lock(); |
506 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
507 | if (!country_ie) { | |
508 | rcu_read_unlock(); | |
509 | return; | |
510 | } | |
511 | ||
512 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
513 | rcu_read_unlock(); | |
8b19e6ca LR |
514 | |
515 | if (!country_ie) | |
516 | return; | |
517 | ||
518 | /* | |
519 | * ieee80211_bss_get_ie() ensures we can access: | |
520 | * - country_ie + 2, the start of the country ie data, and | |
521 | * - and country_ie[1] which is the IE length | |
522 | */ | |
1a919318 JB |
523 | regulatory_hint_11d(wdev->wiphy, bss->channel->band, |
524 | country_ie + 2, country_ie[1]); | |
9caf0364 | 525 | kfree(country_ie); |
b23aa676 | 526 | } |
f2129354 JB |
527 | |
528 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
529 | const u8 *req_ie, size_t req_ie_len, | |
530 | const u8 *resp_ie, size_t resp_ie_len, | |
531 | u16 status, gfp_t gfp) | |
532 | { | |
667503dd JB |
533 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
534 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
535 | struct cfg80211_event *ev; | |
536 | unsigned long flags; | |
537 | ||
f7969969 JB |
538 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING); |
539 | ||
667503dd JB |
540 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
541 | if (!ev) | |
542 | return; | |
543 | ||
544 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
545 | if (bssid) |
546 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
547 | if (req_ie_len) { |
548 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
549 | ev->cr.req_ie_len = req_ie_len; | |
550 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
551 | } | |
552 | if (resp_ie_len) { | |
553 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
554 | ev->cr.resp_ie_len = resp_ie_len; | |
555 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
556 | } | |
667503dd JB |
557 | ev->cr.status = status; |
558 | ||
559 | spin_lock_irqsave(&wdev->event_lock, flags); | |
560 | list_add_tail(&ev->list, &wdev->event_list); | |
561 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 562 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 563 | } |
b23aa676 SO |
564 | EXPORT_SYMBOL(cfg80211_connect_result); |
565 | ||
ed9d0102 | 566 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 567 | struct cfg80211_bss *bss, |
667503dd JB |
568 | const u8 *req_ie, size_t req_ie_len, |
569 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 570 | { |
3d23e349 | 571 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
572 | union iwreq_data wrqu; |
573 | #endif | |
667503dd JB |
574 | ASSERT_WDEV_LOCK(wdev); |
575 | ||
074ac8df JB |
576 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
577 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 578 | goto out; |
b23aa676 | 579 | |
f7969969 | 580 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
adbde344 | 581 | goto out; |
b23aa676 SO |
582 | |
583 | /* internal error -- how did we get to CONNECTED w/o BSS? */ | |
584 | if (WARN_ON(!wdev->current_bss)) { | |
adbde344 | 585 | goto out; |
b23aa676 SO |
586 | } |
587 | ||
588 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 589 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
590 | wdev->current_bss = NULL; |
591 | ||
19957bb3 JB |
592 | cfg80211_hold_bss(bss_from_pub(bss)); |
593 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 594 | |
adbde344 | 595 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bss->bssid, |
667503dd JB |
596 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
597 | GFP_KERNEL); | |
b23aa676 | 598 | |
3d23e349 | 599 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
600 | if (req_ie) { |
601 | memset(&wrqu, 0, sizeof(wrqu)); | |
602 | wrqu.data.length = req_ie_len; | |
3409ff77 | 603 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 604 | &wrqu, req_ie); |
b23aa676 SO |
605 | } |
606 | ||
607 | if (resp_ie) { | |
608 | memset(&wrqu, 0, sizeof(wrqu)); | |
609 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
610 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
611 | &wrqu, resp_ie); | |
b23aa676 SO |
612 | } |
613 | ||
614 | memset(&wrqu, 0, sizeof(wrqu)); | |
615 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
616 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
617 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 618 | wdev->wext.prev_bssid_valid = true; |
667503dd | 619 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 620 | #endif |
adbde344 VT |
621 | |
622 | return; | |
623 | out: | |
624 | cfg80211_put_bss(bss); | |
b23aa676 | 625 | } |
667503dd | 626 | |
ed9d0102 JM |
627 | void cfg80211_roamed(struct net_device *dev, |
628 | struct ieee80211_channel *channel, | |
629 | const u8 *bssid, | |
667503dd JB |
630 | const u8 *req_ie, size_t req_ie_len, |
631 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
632 | { |
633 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
634 | struct cfg80211_bss *bss; | |
635 | ||
636 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); | |
637 | ||
638 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, | |
639 | wdev->ssid_len, WLAN_CAPABILITY_ESS, | |
640 | WLAN_CAPABILITY_ESS); | |
641 | if (WARN_ON(!bss)) | |
642 | return; | |
643 | ||
644 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
645 | resp_ie_len, gfp); | |
646 | } | |
647 | EXPORT_SYMBOL(cfg80211_roamed); | |
648 | ||
649 | void cfg80211_roamed_bss(struct net_device *dev, | |
650 | struct cfg80211_bss *bss, const u8 *req_ie, | |
651 | size_t req_ie_len, const u8 *resp_ie, | |
652 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
653 | { |
654 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
655 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
656 | struct cfg80211_event *ev; | |
657 | unsigned long flags; | |
658 | ||
f7969969 JB |
659 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
660 | ||
adbde344 VT |
661 | if (WARN_ON(!bss)) |
662 | return; | |
663 | ||
667503dd | 664 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 VT |
665 | if (!ev) { |
666 | cfg80211_put_bss(bss); | |
667503dd | 667 | return; |
adbde344 | 668 | } |
667503dd JB |
669 | |
670 | ev->type = EVENT_ROAMED; | |
667503dd JB |
671 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
672 | ev->rm.req_ie_len = req_ie_len; | |
673 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
674 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
675 | ev->rm.resp_ie_len = resp_ie_len; | |
676 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 677 | ev->rm.bss = bss; |
667503dd JB |
678 | |
679 | spin_lock_irqsave(&wdev->event_lock, flags); | |
680 | list_add_tail(&ev->list, &wdev->event_list); | |
681 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 682 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 683 | } |
adbde344 | 684 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 685 | |
667503dd | 686 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 687 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
688 | { |
689 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
fffd0934 JB |
690 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
691 | int i; | |
3d23e349 | 692 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
693 | union iwreq_data wrqu; |
694 | #endif | |
695 | ||
667503dd JB |
696 | ASSERT_WDEV_LOCK(wdev); |
697 | ||
074ac8df JB |
698 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
699 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
700 | return; |
701 | ||
f7969969 | 702 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
b23aa676 SO |
703 | return; |
704 | ||
705 | if (wdev->current_bss) { | |
706 | cfg80211_unhold_bss(wdev->current_bss); | |
19957bb3 | 707 | cfg80211_put_bss(&wdev->current_bss->pub); |
b23aa676 SO |
708 | } |
709 | ||
710 | wdev->current_bss = NULL; | |
711 | wdev->sme_state = CFG80211_SME_IDLE; | |
8dadadb7 | 712 | wdev->ssid_len = 0; |
b23aa676 | 713 | |
6829c878 JB |
714 | if (wdev->conn) { |
715 | kfree(wdev->conn->ie); | |
716 | wdev->conn->ie = NULL; | |
19957bb3 JB |
717 | kfree(wdev->conn); |
718 | wdev->conn = NULL; | |
6829c878 JB |
719 | } |
720 | ||
fffd0934 JB |
721 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
722 | ||
723 | /* | |
724 | * Delete all the keys ... pairwise keys can't really | |
725 | * exist any more anyway, but default keys might. | |
726 | */ | |
727 | if (rdev->ops->del_key) | |
728 | for (i = 0; i < 6; i++) | |
e35e4d28 | 729 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 730 | |
3d23e349 | 731 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
732 | memset(&wrqu, 0, sizeof(wrqu)); |
733 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
734 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 735 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 736 | #endif |
09d989d1 LR |
737 | |
738 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
739 | } |
740 | ||
741 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
742 | u8 *ie, size_t ie_len, gfp_t gfp) | |
743 | { | |
667503dd JB |
744 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
745 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
746 | struct cfg80211_event *ev; | |
747 | unsigned long flags; | |
748 | ||
f7969969 JB |
749 | CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED); |
750 | ||
667503dd JB |
751 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
752 | if (!ev) | |
753 | return; | |
754 | ||
755 | ev->type = EVENT_DISCONNECTED; | |
756 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
757 | ev->dc.ie_len = ie_len; | |
758 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
759 | ev->dc.reason = reason; | |
760 | ||
761 | spin_lock_irqsave(&wdev->event_lock, flags); | |
762 | list_add_tail(&ev->list, &wdev->event_list); | |
763 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 764 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
765 | } |
766 | EXPORT_SYMBOL(cfg80211_disconnected); | |
767 | ||
667503dd JB |
768 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
769 | struct net_device *dev, | |
fffd0934 | 770 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
771 | struct cfg80211_cached_keys *connkeys, |
772 | const u8 *prev_bssid) | |
b23aa676 | 773 | { |
b23aa676 | 774 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bbac31f4 | 775 | struct cfg80211_bss *bss = NULL; |
667503dd JB |
776 | int err; |
777 | ||
778 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 SO |
779 | |
780 | if (wdev->sme_state != CFG80211_SME_IDLE) | |
781 | return -EALREADY; | |
782 | ||
fffd0934 JB |
783 | if (WARN_ON(wdev->connect_keys)) { |
784 | kfree(wdev->connect_keys); | |
785 | wdev->connect_keys = NULL; | |
786 | } | |
787 | ||
7e7c8926 BG |
788 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
789 | rdev->wiphy.ht_capa_mod_mask); | |
790 | ||
fffd0934 JB |
791 | if (connkeys && connkeys->def >= 0) { |
792 | int idx; | |
bcba8eae | 793 | u32 cipher; |
fffd0934 JB |
794 | |
795 | idx = connkeys->def; | |
bcba8eae | 796 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 797 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
798 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
799 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
800 | connect->key_idx = idx; |
801 | connect->key = connkeys->params[idx].key; | |
802 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
803 | |
804 | /* | |
805 | * If ciphers are not set (e.g. when going through | |
806 | * iwconfig), we have to set them appropriately here. | |
807 | */ | |
808 | if (connect->crypto.cipher_group == 0) | |
809 | connect->crypto.cipher_group = cipher; | |
810 | ||
811 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
812 | connect->crypto.n_ciphers_pairwise = 1; | |
813 | connect->crypto.ciphers_pairwise[0] = cipher; | |
814 | } | |
fffd0934 JB |
815 | } |
816 | } | |
817 | ||
b23aa676 | 818 | if (!rdev->ops->connect) { |
6829c878 JB |
819 | if (!rdev->ops->auth || !rdev->ops->assoc) |
820 | return -EOPNOTSUPP; | |
821 | ||
19957bb3 JB |
822 | if (WARN_ON(wdev->conn)) |
823 | return -EINPROGRESS; | |
824 | ||
825 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
826 | if (!wdev->conn) | |
827 | return -ENOMEM; | |
6829c878 JB |
828 | |
829 | /* | |
830 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
831 | */ | |
832 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
833 | if (connect->bssid) { | |
834 | wdev->conn->params.bssid = wdev->conn->bssid; | |
835 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
836 | } | |
837 | ||
838 | if (connect->ie) { | |
839 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, | |
840 | GFP_KERNEL); | |
841 | wdev->conn->params.ie = wdev->conn->ie; | |
19957bb3 JB |
842 | if (!wdev->conn->ie) { |
843 | kfree(wdev->conn); | |
844 | wdev->conn = NULL; | |
6829c878 | 845 | return -ENOMEM; |
19957bb3 | 846 | } |
6829c878 JB |
847 | } |
848 | ||
849 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
850 | wdev->conn->auto_auth = true; | |
851 | /* start with open system ... should mostly work */ | |
852 | wdev->conn->params.auth_type = | |
853 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
854 | } else { | |
855 | wdev->conn->auto_auth = false; | |
856 | } | |
857 | ||
858 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
859 | wdev->ssid_len = connect->ssid_len; | |
860 | wdev->conn->params.ssid = wdev->ssid; | |
861 | wdev->conn->params.ssid_len = connect->ssid_len; | |
862 | ||
8bb89485 JB |
863 | /* see if we have the bss already */ |
864 | bss = cfg80211_get_conn_bss(wdev); | |
6829c878 JB |
865 | |
866 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 867 | wdev->connect_keys = connkeys; |
6829c878 | 868 | |
f401a6f7 JB |
869 | if (prev_bssid) { |
870 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
871 | wdev->conn->prev_bssid_valid = true; | |
872 | } | |
873 | ||
bbac31f4 JB |
874 | /* we're good if we have a matching bss struct */ |
875 | if (bss) { | |
6829c878 JB |
876 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
877 | err = cfg80211_conn_do_work(wdev); | |
bbac31f4 | 878 | cfg80211_put_bss(bss); |
6829c878 JB |
879 | } else { |
880 | /* otherwise we'll need to scan for the AP first */ | |
881 | err = cfg80211_conn_scan(wdev); | |
882 | /* | |
883 | * If we can't scan right now, then we need to scan again | |
884 | * after the current scan finished, since the parameters | |
885 | * changed (unless we find a good AP anyway). | |
886 | */ | |
887 | if (err == -EBUSY) { | |
888 | err = 0; | |
889 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
890 | } | |
891 | } | |
19957bb3 | 892 | if (err) { |
415ad1ef | 893 | kfree(wdev->conn->ie); |
19957bb3 JB |
894 | kfree(wdev->conn); |
895 | wdev->conn = NULL; | |
6829c878 | 896 | wdev->sme_state = CFG80211_SME_IDLE; |
fffd0934 | 897 | wdev->connect_keys = NULL; |
8dadadb7 | 898 | wdev->ssid_len = 0; |
19957bb3 | 899 | } |
6829c878 JB |
900 | |
901 | return err; | |
b23aa676 SO |
902 | } else { |
903 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
fffd0934 | 904 | wdev->connect_keys = connkeys; |
e35e4d28 | 905 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 906 | if (err) { |
fffd0934 | 907 | wdev->connect_keys = NULL; |
b23aa676 SO |
908 | wdev->sme_state = CFG80211_SME_IDLE; |
909 | return err; | |
910 | } | |
b23aa676 | 911 | |
6829c878 JB |
912 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
913 | wdev->ssid_len = connect->ssid_len; | |
b23aa676 | 914 | |
6829c878 JB |
915 | return 0; |
916 | } | |
b23aa676 SO |
917 | } |
918 | ||
667503dd JB |
919 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
920 | struct net_device *dev, | |
fffd0934 JB |
921 | struct cfg80211_connect_params *connect, |
922 | struct cfg80211_cached_keys *connkeys) | |
667503dd JB |
923 | { |
924 | int err; | |
925 | ||
59bbb6f7 | 926 | mutex_lock(&rdev->devlist_mtx); |
667503dd | 927 | wdev_lock(dev->ieee80211_ptr); |
f401a6f7 | 928 | err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL); |
667503dd | 929 | wdev_unlock(dev->ieee80211_ptr); |
59bbb6f7 | 930 | mutex_unlock(&rdev->devlist_mtx); |
667503dd JB |
931 | |
932 | return err; | |
933 | } | |
934 | ||
935 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, | |
936 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 937 | { |
6829c878 | 938 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
b23aa676 SO |
939 | int err; |
940 | ||
667503dd JB |
941 | ASSERT_WDEV_LOCK(wdev); |
942 | ||
6829c878 JB |
943 | if (wdev->sme_state == CFG80211_SME_IDLE) |
944 | return -EINVAL; | |
945 | ||
fffd0934 JB |
946 | kfree(wdev->connect_keys); |
947 | wdev->connect_keys = NULL; | |
948 | ||
b23aa676 | 949 | if (!rdev->ops->disconnect) { |
19957bb3 JB |
950 | if (!rdev->ops->deauth) |
951 | return -EOPNOTSUPP; | |
6829c878 | 952 | |
19957bb3 JB |
953 | /* was it connected by userspace SME? */ |
954 | if (!wdev->conn) { | |
955 | cfg80211_mlme_down(rdev, dev); | |
956 | return 0; | |
957 | } | |
6829c878 JB |
958 | |
959 | if (wdev->sme_state == CFG80211_SME_CONNECTING && | |
960 | (wdev->conn->state == CFG80211_CONN_SCANNING || | |
961 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { | |
962 | wdev->sme_state = CFG80211_SME_IDLE; | |
415ad1ef | 963 | kfree(wdev->conn->ie); |
19957bb3 JB |
964 | kfree(wdev->conn); |
965 | wdev->conn = NULL; | |
8dadadb7 | 966 | wdev->ssid_len = 0; |
6829c878 JB |
967 | return 0; |
968 | } | |
969 | ||
6829c878 | 970 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
667503dd JB |
971 | err = __cfg80211_mlme_deauth(rdev, dev, |
972 | wdev->conn->params.bssid, | |
d5cdfacb | 973 | NULL, 0, reason, false); |
6829c878 JB |
974 | if (err) |
975 | return err; | |
b23aa676 | 976 | } else { |
e35e4d28 | 977 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 SO |
978 | if (err) |
979 | return err; | |
980 | } | |
981 | ||
6829c878 | 982 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
667503dd | 983 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
6829c878 | 984 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
f2129354 JB |
985 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
986 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 987 | wextev, NULL); |
b23aa676 SO |
988 | |
989 | return 0; | |
990 | } | |
19957bb3 | 991 | |
667503dd JB |
992 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
993 | struct net_device *dev, | |
994 | u16 reason, bool wextev) | |
995 | { | |
996 | int err; | |
997 | ||
998 | wdev_lock(dev->ieee80211_ptr); | |
999 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); | |
1000 | wdev_unlock(dev->ieee80211_ptr); | |
1001 | ||
1002 | return err; | |
1003 | } | |
1004 | ||
95de817b JB |
1005 | void cfg80211_sme_disassoc(struct net_device *dev, |
1006 | struct cfg80211_internal_bss *bss) | |
19957bb3 JB |
1007 | { |
1008 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1009 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
1010 | u8 bssid[ETH_ALEN]; | |
1011 | ||
667503dd JB |
1012 | ASSERT_WDEV_LOCK(wdev); |
1013 | ||
19957bb3 JB |
1014 | if (!wdev->conn) |
1015 | return; | |
1016 | ||
1017 | if (wdev->conn->state == CFG80211_CONN_IDLE) | |
1018 | return; | |
1019 | ||
1020 | /* | |
1021 | * Ok, so the association was made by this SME -- we don't | |
1022 | * want it any more so deauthenticate too. | |
1023 | */ | |
1024 | ||
95de817b | 1025 | memcpy(bssid, bss->pub.bssid, ETH_ALEN); |
19957bb3 | 1026 | |
95de817b JB |
1027 | __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0, |
1028 | WLAN_REASON_DEAUTH_LEAVING, false); | |
19957bb3 | 1029 | } |