Commit | Line | Data |
---|---|---|
b23aa676 | 1 | /* |
ceca7b71 JB |
2 | * SME code for cfg80211 |
3 | * both driver SME event handling and the SME implementation | |
4 | * (for nl80211's connect() and wext) | |
b23aa676 SO |
5 | * |
6 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
7 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
8 | */ | |
9 | ||
10 | #include <linux/etherdevice.h> | |
11 | #include <linux/if_arp.h> | |
5a0e3ad6 | 12 | #include <linux/slab.h> |
b23aa676 | 13 | #include <linux/workqueue.h> |
a9a11622 | 14 | #include <linux/wireless.h> |
bc3b2d7f | 15 | #include <linux/export.h> |
a9a11622 | 16 | #include <net/iw_handler.h> |
b23aa676 SO |
17 | #include <net/cfg80211.h> |
18 | #include <net/rtnetlink.h> | |
19 | #include "nl80211.h" | |
8b19e6ca | 20 | #include "reg.h" |
e35e4d28 | 21 | #include "rdev-ops.h" |
b23aa676 | 22 | |
ceca7b71 JB |
23 | /* |
24 | * Software SME in cfg80211, using auth/assoc/deauth calls to the | |
25 | * driver. This is is for implementing nl80211's connect/disconnect | |
26 | * and wireless extensions (if configured.) | |
27 | */ | |
28 | ||
6829c878 JB |
29 | struct cfg80211_conn { |
30 | struct cfg80211_connect_params params; | |
31 | /* these are sub-states of the _CONNECTING sme_state */ | |
32 | enum { | |
6829c878 JB |
33 | CFG80211_CONN_SCANNING, |
34 | CFG80211_CONN_SCAN_AGAIN, | |
35 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
36 | CFG80211_CONN_AUTHENTICATING, | |
923a0e7d | 37 | CFG80211_CONN_AUTH_FAILED, |
6829c878 JB |
38 | CFG80211_CONN_ASSOCIATE_NEXT, |
39 | CFG80211_CONN_ASSOCIATING, | |
923a0e7d | 40 | CFG80211_CONN_ASSOC_FAILED, |
ceca7b71 JB |
41 | CFG80211_CONN_DEAUTH, |
42 | CFG80211_CONN_CONNECTED, | |
6829c878 | 43 | } state; |
f401a6f7 | 44 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
46b9d180 | 45 | const u8 *ie; |
6829c878 | 46 | size_t ie_len; |
f401a6f7 | 47 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
48 | }; |
49 | ||
ceca7b71 | 50 | static void cfg80211_sme_free(struct wireless_dev *wdev) |
09d989d1 | 51 | { |
ceca7b71 JB |
52 | if (!wdev->conn) |
53 | return; | |
09d989d1 | 54 | |
ceca7b71 JB |
55 | kfree(wdev->conn->ie); |
56 | kfree(wdev->conn); | |
57 | wdev->conn = NULL; | |
09d989d1 LR |
58 | } |
59 | ||
6829c878 JB |
60 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
61 | { | |
f26cbf40 | 62 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 JB |
63 | struct cfg80211_scan_request *request; |
64 | int n_channels, err; | |
65 | ||
66 | ASSERT_RTNL(); | |
667503dd | 67 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 68 | |
f9d15d16 | 69 | if (rdev->scan_req || rdev->scan_msg) |
6829c878 JB |
70 | return -EBUSY; |
71 | ||
bdfbec2d | 72 | if (wdev->conn->params.channel) |
6829c878 | 73 | n_channels = 1; |
bdfbec2d IP |
74 | else |
75 | n_channels = ieee80211_get_num_supported_channels(wdev->wiphy); | |
6829c878 | 76 | |
6829c878 JB |
77 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
78 | sizeof(request->channels[0]) * n_channels, | |
79 | GFP_KERNEL); | |
80 | if (!request) | |
81 | return -ENOMEM; | |
82 | ||
2a84ee86 KB |
83 | if (wdev->conn->params.channel) { |
84 | enum ieee80211_band band = wdev->conn->params.channel->band; | |
85 | struct ieee80211_supported_band *sband = | |
86 | wdev->wiphy->bands[band]; | |
87 | ||
88 | if (!sband) { | |
89 | kfree(request); | |
90 | return -EINVAL; | |
91 | } | |
6829c878 | 92 | request->channels[0] = wdev->conn->params.channel; |
2a84ee86 KB |
93 | request->rates[band] = (1 << sband->n_bitrates) - 1; |
94 | } else { | |
6829c878 JB |
95 | int i = 0, j; |
96 | enum ieee80211_band band; | |
e3081501 RM |
97 | struct ieee80211_supported_band *bands; |
98 | struct ieee80211_channel *channel; | |
6829c878 JB |
99 | |
100 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
e3081501 RM |
101 | bands = wdev->wiphy->bands[band]; |
102 | if (!bands) | |
6829c878 | 103 | continue; |
e3081501 RM |
104 | for (j = 0; j < bands->n_channels; j++) { |
105 | channel = &bands->channels[j]; | |
106 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
107 | continue; | |
108 | request->channels[i++] = channel; | |
109 | } | |
110 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 111 | } |
e3081501 | 112 | n_channels = i; |
6829c878 JB |
113 | } |
114 | request->n_channels = n_channels; | |
5ba63533 | 115 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
116 | request->n_ssids = 1; |
117 | ||
118 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
119 | wdev->conn->params.ssid_len); | |
120 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
121 | ||
fd014284 | 122 | request->wdev = wdev; |
79c97e97 | 123 | request->wiphy = &rdev->wiphy; |
15d6030b | 124 | request->scan_start = jiffies; |
6829c878 | 125 | |
79c97e97 | 126 | rdev->scan_req = request; |
6829c878 | 127 | |
e35e4d28 | 128 | err = rdev_scan(rdev, request); |
6829c878 JB |
129 | if (!err) { |
130 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 131 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 132 | dev_hold(wdev->netdev); |
6829c878 | 133 | } else { |
79c97e97 | 134 | rdev->scan_req = NULL; |
6829c878 JB |
135 | kfree(request); |
136 | } | |
137 | return err; | |
138 | } | |
139 | ||
140 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) | |
141 | { | |
f26cbf40 | 142 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
19957bb3 | 143 | struct cfg80211_connect_params *params; |
f62fab73 | 144 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 145 | int err; |
6829c878 | 146 | |
667503dd JB |
147 | ASSERT_WDEV_LOCK(wdev); |
148 | ||
6829c878 JB |
149 | if (!wdev->conn) |
150 | return 0; | |
151 | ||
19957bb3 JB |
152 | params = &wdev->conn->params; |
153 | ||
6829c878 | 154 | switch (wdev->conn->state) { |
ceca7b71 JB |
155 | case CFG80211_CONN_SCANNING: |
156 | /* didn't find it during scan ... */ | |
157 | return -ENOENT; | |
6829c878 JB |
158 | case CFG80211_CONN_SCAN_AGAIN: |
159 | return cfg80211_conn_scan(wdev); | |
160 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
2fd05115 JB |
161 | if (WARN_ON(!rdev->ops->auth)) |
162 | return -EOPNOTSUPP; | |
19957bb3 | 163 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
164 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
165 | params->channel, params->auth_type, | |
166 | params->bssid, | |
167 | params->ssid, params->ssid_len, | |
168 | NULL, 0, | |
169 | params->key, params->key_len, | |
170 | params->key_idx, NULL, 0); | |
923a0e7d JB |
171 | case CFG80211_CONN_AUTH_FAILED: |
172 | return -ENOTCONN; | |
6829c878 | 173 | case CFG80211_CONN_ASSOCIATE_NEXT: |
2fd05115 JB |
174 | if (WARN_ON(!rdev->ops->assoc)) |
175 | return -EOPNOTSUPP; | |
19957bb3 | 176 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 177 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
178 | req.prev_bssid = wdev->conn->prev_bssid; |
179 | req.ie = params->ie; | |
180 | req.ie_len = params->ie_len; | |
181 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
182 | req.crypto = params->crypto; | |
183 | req.flags = params->flags; | |
184 | req.ht_capa = params->ht_capa; | |
185 | req.ht_capa_mask = params->ht_capa_mask; | |
186 | req.vht_capa = params->vht_capa; | |
187 | req.vht_capa_mask = params->vht_capa_mask; | |
188 | ||
91bf9b26 JB |
189 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
190 | params->bssid, params->ssid, | |
191 | params->ssid_len, &req); | |
19957bb3 | 192 | if (err) |
91bf9b26 JB |
193 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
194 | NULL, 0, | |
195 | WLAN_REASON_DEAUTH_LEAVING, | |
196 | false); | |
19957bb3 | 197 | return err; |
923a0e7d JB |
198 | case CFG80211_CONN_ASSOC_FAILED: |
199 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
200 | NULL, 0, | |
201 | WLAN_REASON_DEAUTH_LEAVING, false); | |
202 | return -ENOTCONN; | |
ceca7b71 | 203 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
204 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
205 | NULL, 0, | |
206 | WLAN_REASON_DEAUTH_LEAVING, false); | |
923a0e7d JB |
207 | /* free directly, disconnected event already sent */ |
208 | cfg80211_sme_free(wdev); | |
ceca7b71 | 209 | return 0; |
6829c878 JB |
210 | default: |
211 | return 0; | |
212 | } | |
213 | } | |
214 | ||
215 | void cfg80211_conn_work(struct work_struct *work) | |
216 | { | |
79c97e97 | 217 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
218 | container_of(work, struct cfg80211_registered_device, conn_work); |
219 | struct wireless_dev *wdev; | |
7400f42e | 220 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
6829c878 JB |
221 | |
222 | rtnl_lock(); | |
6829c878 | 223 | |
89a54e48 | 224 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
c8157976 JB |
225 | if (!wdev->netdev) |
226 | continue; | |
227 | ||
667503dd JB |
228 | wdev_lock(wdev); |
229 | if (!netif_running(wdev->netdev)) { | |
230 | wdev_unlock(wdev); | |
6829c878 | 231 | continue; |
667503dd | 232 | } |
ceca7b71 JB |
233 | if (!wdev->conn || |
234 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 235 | wdev_unlock(wdev); |
6829c878 | 236 | continue; |
667503dd | 237 | } |
7400f42e JB |
238 | if (wdev->conn->params.bssid) { |
239 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
240 | bssid = bssid_buf; | |
241 | } | |
ceca7b71 | 242 | if (cfg80211_conn_do_work(wdev)) { |
667503dd | 243 | __cfg80211_connect_result( |
7d930bc3 | 244 | wdev->netdev, bssid, |
667503dd JB |
245 | NULL, 0, NULL, 0, |
246 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 247 | false, NULL); |
ceca7b71 | 248 | } |
667503dd | 249 | wdev_unlock(wdev); |
6829c878 JB |
250 | } |
251 | ||
6829c878 JB |
252 | rtnl_unlock(); |
253 | } | |
254 | ||
0e3a39b5 | 255 | /* Returned bss is reference counted and must be cleaned up appropriately. */ |
bbac31f4 | 256 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 257 | { |
f26cbf40 | 258 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 259 | struct cfg80211_bss *bss; |
6829c878 | 260 | |
667503dd JB |
261 | ASSERT_WDEV_LOCK(wdev); |
262 | ||
ed9d0102 JM |
263 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
264 | wdev->conn->params.bssid, | |
6829c878 JB |
265 | wdev->conn->params.ssid, |
266 | wdev->conn->params.ssid_len, | |
6eb18137 DL |
267 | IEEE80211_BSS_TYPE_ESS, |
268 | IEEE80211_PRIVACY(wdev->conn->params.privacy)); | |
6829c878 | 269 | if (!bss) |
bbac31f4 | 270 | return NULL; |
6829c878 JB |
271 | |
272 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
273 | wdev->conn->params.bssid = wdev->conn->bssid; | |
274 | wdev->conn->params.channel = bss->channel; | |
275 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 276 | schedule_work(&rdev->conn_work); |
6829c878 | 277 | |
bbac31f4 | 278 | return bss; |
6829c878 JB |
279 | } |
280 | ||
667503dd | 281 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
282 | { |
283 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 284 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 285 | struct cfg80211_bss *bss; |
6829c878 | 286 | |
667503dd JB |
287 | ASSERT_WDEV_LOCK(wdev); |
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 | 296 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 297 | if (bss) |
5b112d3d | 298 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
299 | else |
300 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
301 | } |
302 | ||
667503dd JB |
303 | void cfg80211_sme_scan_done(struct net_device *dev) |
304 | { | |
305 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
306 | ||
307 | wdev_lock(wdev); | |
308 | __cfg80211_sme_scan_done(dev); | |
309 | wdev_unlock(wdev); | |
310 | } | |
311 | ||
ceca7b71 | 312 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 313 | { |
6829c878 | 314 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 315 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
316 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
317 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
318 | ||
667503dd JB |
319 | ASSERT_WDEV_LOCK(wdev); |
320 | ||
ceca7b71 | 321 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
322 | return; |
323 | ||
324 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
325 | wdev->conn->auto_auth && | |
326 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
327 | /* select automatically between only open, shared, leap */ | |
328 | switch (wdev->conn->params.auth_type) { | |
329 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
330 | if (wdev->connect_keys) |
331 | wdev->conn->params.auth_type = | |
332 | NL80211_AUTHTYPE_SHARED_KEY; | |
333 | else | |
334 | wdev->conn->params.auth_type = | |
335 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
336 | break; |
337 | case NL80211_AUTHTYPE_SHARED_KEY: | |
338 | wdev->conn->params.auth_type = | |
339 | NL80211_AUTHTYPE_NETWORK_EAP; | |
340 | break; | |
341 | default: | |
342 | /* huh? */ | |
343 | wdev->conn->params.auth_type = | |
344 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
345 | break; | |
346 | } | |
347 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
348 | schedule_work(&rdev->conn_work); | |
19957bb3 | 349 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
ceca7b71 JB |
350 | __cfg80211_connect_result(wdev->netdev, mgmt->bssid, |
351 | NULL, 0, NULL, 0, | |
df7fc0f9 | 352 | status_code, false, NULL); |
ceca7b71 | 353 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
354 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
355 | schedule_work(&rdev->conn_work); | |
356 | } | |
357 | } | |
b23aa676 | 358 | |
ceca7b71 | 359 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 360 | { |
f26cbf40 | 361 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 362 | |
ceca7b71 | 363 | if (!wdev->conn) |
f401a6f7 JB |
364 | return false; |
365 | ||
ceca7b71 JB |
366 | if (status == WLAN_STATUS_SUCCESS) { |
367 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 368 | return false; |
ceca7b71 | 369 | } |
f401a6f7 | 370 | |
ceca7b71 JB |
371 | if (wdev->conn->prev_bssid_valid) { |
372 | /* | |
373 | * Some stupid APs don't accept reassoc, so we | |
374 | * need to fall back to trying regular assoc; | |
375 | * return true so no event is sent to userspace. | |
376 | */ | |
377 | wdev->conn->prev_bssid_valid = false; | |
378 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
379 | schedule_work(&rdev->conn_work); | |
380 | return true; | |
381 | } | |
382 | ||
923a0e7d | 383 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 384 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
385 | return false; |
386 | } | |
f401a6f7 | 387 | |
ceca7b71 JB |
388 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
389 | { | |
390 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
391 | } |
392 | ||
ceca7b71 | 393 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 394 | { |
f26cbf40 | 395 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
396 | |
397 | if (!wdev->conn) | |
398 | return; | |
399 | ||
400 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED; | |
401 | schedule_work(&rdev->conn_work); | |
ceca7b71 | 402 | } |
7d930bc3 | 403 | |
ceca7b71 JB |
404 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
405 | { | |
f26cbf40 | 406 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
407 | |
408 | if (!wdev->conn) | |
409 | return; | |
410 | ||
411 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
412 | schedule_work(&rdev->conn_work); |
413 | } | |
414 | ||
ceca7b71 JB |
415 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
416 | { | |
f26cbf40 | 417 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
418 | |
419 | if (!wdev->conn) | |
420 | return; | |
421 | ||
422 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; | |
423 | schedule_work(&rdev->conn_work); | |
ceca7b71 JB |
424 | } |
425 | ||
46b9d180 JB |
426 | static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev, |
427 | const u8 *ies, size_t ies_len, | |
428 | const u8 **out_ies, size_t *out_ies_len) | |
429 | { | |
430 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
431 | u8 *buf; | |
432 | size_t offs; | |
433 | ||
434 | if (!rdev->wiphy.extended_capabilities_len || | |
435 | (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) { | |
436 | *out_ies = kmemdup(ies, ies_len, GFP_KERNEL); | |
437 | if (!*out_ies) | |
438 | return -ENOMEM; | |
439 | *out_ies_len = ies_len; | |
440 | return 0; | |
441 | } | |
442 | ||
443 | buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2, | |
444 | GFP_KERNEL); | |
445 | if (!buf) | |
446 | return -ENOMEM; | |
447 | ||
448 | if (ies_len) { | |
449 | static const u8 before_extcapa[] = { | |
450 | /* not listing IEs expected to be created by driver */ | |
451 | WLAN_EID_RSN, | |
452 | WLAN_EID_QOS_CAPA, | |
453 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
454 | WLAN_EID_MOBILITY_DOMAIN, | |
455 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
456 | WLAN_EID_BSS_COEX_2040, | |
457 | }; | |
458 | ||
459 | offs = ieee80211_ie_split(ies, ies_len, before_extcapa, | |
460 | ARRAY_SIZE(before_extcapa), 0); | |
461 | memcpy(buf, ies, offs); | |
462 | /* leave a whole for extended capabilities IE */ | |
463 | memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2, | |
464 | ies + offs, ies_len - offs); | |
465 | } else { | |
466 | offs = 0; | |
467 | } | |
468 | ||
469 | /* place extended capabilities IE (with only driver capabilities) */ | |
470 | buf[offs] = WLAN_EID_EXT_CAPABILITY; | |
471 | buf[offs + 1] = rdev->wiphy.extended_capabilities_len; | |
472 | memcpy(buf + offs + 2, | |
473 | rdev->wiphy.extended_capabilities, | |
474 | rdev->wiphy.extended_capabilities_len); | |
475 | ||
476 | *out_ies = buf; | |
477 | *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2; | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
ceca7b71 JB |
482 | static int cfg80211_sme_connect(struct wireless_dev *wdev, |
483 | struct cfg80211_connect_params *connect, | |
484 | const u8 *prev_bssid) | |
485 | { | |
f26cbf40 | 486 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
487 | struct cfg80211_bss *bss; |
488 | int err; | |
489 | ||
490 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
491 | return -EOPNOTSUPP; | |
492 | ||
493 | if (wdev->current_bss) | |
494 | return -EALREADY; | |
495 | ||
496 | if (WARN_ON(wdev->conn)) | |
497 | return -EINPROGRESS; | |
498 | ||
499 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
500 | if (!wdev->conn) | |
501 | return -ENOMEM; | |
502 | ||
503 | /* | |
504 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
505 | */ | |
506 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
507 | if (connect->bssid) { | |
508 | wdev->conn->params.bssid = wdev->conn->bssid; | |
509 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
510 | } | |
511 | ||
46b9d180 JB |
512 | if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len, |
513 | &wdev->conn->ie, | |
514 | &wdev->conn->params.ie_len)) { | |
515 | kfree(wdev->conn); | |
516 | wdev->conn = NULL; | |
517 | return -ENOMEM; | |
ceca7b71 | 518 | } |
46b9d180 | 519 | wdev->conn->params.ie = wdev->conn->ie; |
ceca7b71 JB |
520 | |
521 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
522 | wdev->conn->auto_auth = true; | |
523 | /* start with open system ... should mostly work */ | |
524 | wdev->conn->params.auth_type = | |
525 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
526 | } else { | |
527 | wdev->conn->auto_auth = false; | |
528 | } | |
529 | ||
530 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 531 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
532 | |
533 | /* see if we have the bss already */ | |
534 | bss = cfg80211_get_conn_bss(wdev); | |
535 | ||
536 | if (prev_bssid) { | |
537 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
538 | wdev->conn->prev_bssid_valid = true; | |
539 | } | |
540 | ||
541 | /* we're good if we have a matching bss struct */ | |
542 | if (bss) { | |
ceca7b71 JB |
543 | err = cfg80211_conn_do_work(wdev); |
544 | cfg80211_put_bss(wdev->wiphy, bss); | |
545 | } else { | |
546 | /* otherwise we'll need to scan for the AP first */ | |
547 | err = cfg80211_conn_scan(wdev); | |
548 | ||
549 | /* | |
550 | * If we can't scan right now, then we need to scan again | |
551 | * after the current scan finished, since the parameters | |
552 | * changed (unless we find a good AP anyway). | |
553 | */ | |
554 | if (err == -EBUSY) { | |
555 | err = 0; | |
556 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
557 | } | |
558 | } | |
559 | ||
560 | if (err) | |
561 | cfg80211_sme_free(wdev); | |
562 | ||
563 | return err; | |
564 | } | |
565 | ||
566 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
567 | { | |
f26cbf40 | 568 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
569 | int err; |
570 | ||
571 | if (!wdev->conn) | |
572 | return 0; | |
573 | ||
574 | if (!rdev->ops->deauth) | |
575 | return -EOPNOTSUPP; | |
576 | ||
577 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
578 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
579 | err = 0; | |
580 | goto out; | |
581 | } | |
582 | ||
583 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
584 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
585 | wdev->conn->params.bssid, | |
586 | NULL, 0, reason, false); | |
587 | out: | |
588 | cfg80211_sme_free(wdev); | |
589 | return err; | |
590 | } | |
591 | ||
592 | /* | |
593 | * code shared for in-device and software SME | |
594 | */ | |
595 | ||
596 | static bool cfg80211_is_all_idle(void) | |
597 | { | |
598 | struct cfg80211_registered_device *rdev; | |
599 | struct wireless_dev *wdev; | |
600 | bool is_all_idle = true; | |
601 | ||
602 | /* | |
603 | * All devices must be idle as otherwise if you are actively | |
604 | * scanning some new beacon hints could be learned and would | |
605 | * count as new regulatory hints. | |
606 | */ | |
607 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
608 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
609 | wdev_lock(wdev); | |
610 | if (wdev->conn || wdev->current_bss) | |
611 | is_all_idle = false; | |
612 | wdev_unlock(wdev); | |
613 | } | |
614 | } | |
615 | ||
616 | return is_all_idle; | |
617 | } | |
618 | ||
619 | static void disconnect_work(struct work_struct *work) | |
620 | { | |
621 | rtnl_lock(); | |
622 | if (cfg80211_is_all_idle()) | |
623 | regulatory_hint_disconnect(); | |
624 | rtnl_unlock(); | |
625 | } | |
626 | ||
627 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
628 | ||
629 | ||
630 | /* | |
631 | * API calls for drivers implementing connect/disconnect and | |
632 | * SME event handling | |
633 | */ | |
634 | ||
6f390908 | 635 | /* This method must consume bss one way or another */ |
667503dd JB |
636 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
637 | const u8 *req_ie, size_t req_ie_len, | |
638 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
639 | u16 status, bool wextev, |
640 | struct cfg80211_bss *bss) | |
b23aa676 SO |
641 | { |
642 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 643 | const u8 *country_ie; |
3d23e349 | 644 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
645 | union iwreq_data wrqu; |
646 | #endif | |
647 | ||
667503dd JB |
648 | ASSERT_WDEV_LOCK(wdev); |
649 | ||
074ac8df | 650 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 BG |
651 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
652 | cfg80211_put_bss(wdev->wiphy, bss); | |
b23aa676 | 653 | return; |
6f390908 | 654 | } |
b23aa676 | 655 | |
f26cbf40 | 656 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, |
e45cd82a | 657 | bssid, req_ie, req_ie_len, |
ea416a79 JB |
658 | resp_ie, resp_ie_len, |
659 | status, GFP_KERNEL); | |
e45cd82a | 660 | |
3d23e349 | 661 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a JB |
662 | if (wextev) { |
663 | if (req_ie && status == WLAN_STATUS_SUCCESS) { | |
664 | memset(&wrqu, 0, sizeof(wrqu)); | |
665 | wrqu.data.length = req_ie_len; | |
3409ff77 | 666 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
e45cd82a JB |
667 | } |
668 | ||
669 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { | |
670 | memset(&wrqu, 0, sizeof(wrqu)); | |
671 | wrqu.data.length = resp_ie_len; | |
672 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); | |
673 | } | |
674 | ||
675 | memset(&wrqu, 0, sizeof(wrqu)); | |
676 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
f401a6f7 | 677 | if (bssid && status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 678 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
f401a6f7 JB |
679 | memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN); |
680 | wdev->wext.prev_bssid_valid = true; | |
681 | } | |
e45cd82a JB |
682 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
683 | } | |
684 | #endif | |
685 | ||
4c4d684a | 686 | if (!bss && (status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 687 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
4c4d684a UR |
688 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
689 | wdev->ssid, wdev->ssid_len, | |
6eb18137 DL |
690 | IEEE80211_BSS_TYPE_ESS, |
691 | IEEE80211_PRIVACY_ANY); | |
4c4d684a UR |
692 | if (bss) |
693 | cfg80211_hold_bss(bss_from_pub(bss)); | |
694 | } | |
695 | ||
df7fc0f9 JB |
696 | if (wdev->current_bss) { |
697 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 698 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
699 | wdev->current_bss = NULL; |
700 | } | |
701 | ||
fffd0934 | 702 | if (status != WLAN_STATUS_SUCCESS) { |
b47f610b | 703 | kzfree(wdev->connect_keys); |
fffd0934 | 704 | wdev->connect_keys = NULL; |
8dadadb7 | 705 | wdev->ssid_len = 0; |
f1940c57 JB |
706 | if (bss) { |
707 | cfg80211_unhold_bss(bss_from_pub(bss)); | |
708 | cfg80211_put_bss(wdev->wiphy, bss); | |
709 | } | |
c1fbb258 | 710 | cfg80211_sme_free(wdev); |
fffd0934 | 711 | return; |
b23aa676 | 712 | } |
fffd0934 | 713 | |
4c4d684a UR |
714 | if (WARN_ON(!bss)) |
715 | return; | |
fffd0934 | 716 | |
fffd0934 JB |
717 | wdev->current_bss = bss_from_pub(bss); |
718 | ||
fffd0934 | 719 | cfg80211_upload_connect_keys(wdev); |
8b19e6ca | 720 | |
9caf0364 JB |
721 | rcu_read_lock(); |
722 | country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); | |
723 | if (!country_ie) { | |
724 | rcu_read_unlock(); | |
725 | return; | |
726 | } | |
727 | ||
728 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
729 | rcu_read_unlock(); | |
8b19e6ca LR |
730 | |
731 | if (!country_ie) | |
732 | return; | |
733 | ||
734 | /* | |
735 | * ieee80211_bss_get_ie() ensures we can access: | |
736 | * - country_ie + 2, the start of the country ie data, and | |
737 | * - and country_ie[1] which is the IE length | |
738 | */ | |
789fd033 LR |
739 | regulatory_hint_country_ie(wdev->wiphy, bss->channel->band, |
740 | country_ie + 2, country_ie[1]); | |
9caf0364 | 741 | kfree(country_ie); |
b23aa676 | 742 | } |
f2129354 JB |
743 | |
744 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, | |
745 | const u8 *req_ie, size_t req_ie_len, | |
746 | const u8 *resp_ie, size_t resp_ie_len, | |
747 | u16 status, gfp_t gfp) | |
748 | { | |
667503dd | 749 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 750 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
751 | struct cfg80211_event *ev; |
752 | unsigned long flags; | |
753 | ||
754 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); | |
755 | if (!ev) | |
756 | return; | |
757 | ||
758 | ev->type = EVENT_CONNECT_RESULT; | |
16a832e7 ZY |
759 | if (bssid) |
760 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); | |
7834704b NS |
761 | if (req_ie_len) { |
762 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); | |
763 | ev->cr.req_ie_len = req_ie_len; | |
764 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); | |
765 | } | |
766 | if (resp_ie_len) { | |
767 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
768 | ev->cr.resp_ie_len = resp_ie_len; | |
769 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); | |
770 | } | |
667503dd JB |
771 | ev->cr.status = status; |
772 | ||
773 | spin_lock_irqsave(&wdev->event_lock, flags); | |
774 | list_add_tail(&ev->list, &wdev->event_list); | |
775 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 776 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 777 | } |
b23aa676 SO |
778 | EXPORT_SYMBOL(cfg80211_connect_result); |
779 | ||
0e3a39b5 | 780 | /* Consumes bss object one way or another */ |
ed9d0102 | 781 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 782 | struct cfg80211_bss *bss, |
667503dd JB |
783 | const u8 *req_ie, size_t req_ie_len, |
784 | const u8 *resp_ie, size_t resp_ie_len) | |
b23aa676 | 785 | { |
3d23e349 | 786 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
787 | union iwreq_data wrqu; |
788 | #endif | |
667503dd JB |
789 | ASSERT_WDEV_LOCK(wdev); |
790 | ||
074ac8df JB |
791 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
792 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 793 | goto out; |
b23aa676 | 794 | |
ceca7b71 | 795 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 796 | goto out; |
b23aa676 SO |
797 | |
798 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 799 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
800 | wdev->current_bss = NULL; |
801 | ||
19957bb3 JB |
802 | cfg80211_hold_bss(bss_from_pub(bss)); |
803 | wdev->current_bss = bss_from_pub(bss); | |
b23aa676 | 804 | |
f26cbf40 ZG |
805 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
806 | wdev->netdev, bss->bssid, | |
667503dd JB |
807 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
808 | GFP_KERNEL); | |
b23aa676 | 809 | |
3d23e349 | 810 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
811 | if (req_ie) { |
812 | memset(&wrqu, 0, sizeof(wrqu)); | |
813 | wrqu.data.length = req_ie_len; | |
3409ff77 | 814 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
667503dd | 815 | &wrqu, req_ie); |
b23aa676 SO |
816 | } |
817 | ||
818 | if (resp_ie) { | |
819 | memset(&wrqu, 0, sizeof(wrqu)); | |
820 | wrqu.data.length = resp_ie_len; | |
667503dd JB |
821 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
822 | &wrqu, resp_ie); | |
b23aa676 SO |
823 | } |
824 | ||
825 | memset(&wrqu, 0, sizeof(wrqu)); | |
826 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
adbde344 VT |
827 | memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); |
828 | memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); | |
f401a6f7 | 829 | wdev->wext.prev_bssid_valid = true; |
667503dd | 830 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 831 | #endif |
adbde344 VT |
832 | |
833 | return; | |
834 | out: | |
5b112d3d | 835 | cfg80211_put_bss(wdev->wiphy, bss); |
b23aa676 | 836 | } |
667503dd | 837 | |
ed9d0102 JM |
838 | void cfg80211_roamed(struct net_device *dev, |
839 | struct ieee80211_channel *channel, | |
840 | const u8 *bssid, | |
667503dd JB |
841 | const u8 *req_ie, size_t req_ie_len, |
842 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
adbde344 VT |
843 | { |
844 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
845 | struct cfg80211_bss *bss; | |
846 | ||
adbde344 | 847 | bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, |
6eb18137 DL |
848 | wdev->ssid_len, |
849 | IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY); | |
adbde344 VT |
850 | if (WARN_ON(!bss)) |
851 | return; | |
852 | ||
853 | cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, | |
854 | resp_ie_len, gfp); | |
855 | } | |
856 | EXPORT_SYMBOL(cfg80211_roamed); | |
857 | ||
0e3a39b5 | 858 | /* Consumes bss object one way or another */ |
adbde344 VT |
859 | void cfg80211_roamed_bss(struct net_device *dev, |
860 | struct cfg80211_bss *bss, const u8 *req_ie, | |
861 | size_t req_ie_len, const u8 *resp_ie, | |
862 | size_t resp_ie_len, gfp_t gfp) | |
667503dd JB |
863 | { |
864 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 865 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
866 | struct cfg80211_event *ev; |
867 | unsigned long flags; | |
868 | ||
adbde344 VT |
869 | if (WARN_ON(!bss)) |
870 | return; | |
871 | ||
667503dd | 872 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
adbde344 | 873 | if (!ev) { |
5b112d3d | 874 | cfg80211_put_bss(wdev->wiphy, bss); |
667503dd | 875 | return; |
adbde344 | 876 | } |
667503dd JB |
877 | |
878 | ev->type = EVENT_ROAMED; | |
667503dd JB |
879 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
880 | ev->rm.req_ie_len = req_ie_len; | |
881 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); | |
882 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; | |
883 | ev->rm.resp_ie_len = resp_ie_len; | |
884 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); | |
adbde344 | 885 | ev->rm.bss = bss; |
667503dd JB |
886 | |
887 | spin_lock_irqsave(&wdev->event_lock, flags); | |
888 | list_add_tail(&ev->list, &wdev->event_list); | |
889 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 890 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 891 | } |
adbde344 | 892 | EXPORT_SYMBOL(cfg80211_roamed_bss); |
b23aa676 | 893 | |
667503dd | 894 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 895 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
896 | { |
897 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 898 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 899 | int i; |
3d23e349 | 900 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
901 | union iwreq_data wrqu; |
902 | #endif | |
903 | ||
667503dd JB |
904 | ASSERT_WDEV_LOCK(wdev); |
905 | ||
074ac8df JB |
906 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
907 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
908 | return; |
909 | ||
b23aa676 SO |
910 | if (wdev->current_bss) { |
911 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 912 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
913 | } |
914 | ||
915 | wdev->current_bss = NULL; | |
8dadadb7 | 916 | wdev->ssid_len = 0; |
b23aa676 | 917 | |
fffd0934 JB |
918 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
919 | ||
920 | /* | |
921 | * Delete all the keys ... pairwise keys can't really | |
922 | * exist any more anyway, but default keys might. | |
923 | */ | |
924 | if (rdev->ops->del_key) | |
925 | for (i = 0; i < 6; i++) | |
e35e4d28 | 926 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 927 | |
fa9ffc74 KP |
928 | rdev_set_qos_map(rdev, dev, NULL); |
929 | ||
3d23e349 | 930 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
931 | memset(&wrqu, 0, sizeof(wrqu)); |
932 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
933 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 934 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 935 | #endif |
09d989d1 LR |
936 | |
937 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
938 | } |
939 | ||
940 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
c1e5f471 | 941 | const u8 *ie, size_t ie_len, gfp_t gfp) |
b23aa676 | 942 | { |
667503dd | 943 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 944 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
945 | struct cfg80211_event *ev; |
946 | unsigned long flags; | |
947 | ||
948 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
949 | if (!ev) | |
950 | return; | |
951 | ||
952 | ev->type = EVENT_DISCONNECTED; | |
953 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
954 | ev->dc.ie_len = ie_len; | |
955 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
956 | ev->dc.reason = reason; | |
957 | ||
958 | spin_lock_irqsave(&wdev->event_lock, flags); | |
959 | list_add_tail(&ev->list, &wdev->event_list); | |
960 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 961 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
962 | } |
963 | EXPORT_SYMBOL(cfg80211_disconnected); | |
964 | ||
ceca7b71 JB |
965 | /* |
966 | * API calls for nl80211/wext compatibility code | |
967 | */ | |
83739b03 JB |
968 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
969 | struct net_device *dev, | |
970 | struct cfg80211_connect_params *connect, | |
971 | struct cfg80211_cached_keys *connkeys, | |
972 | const u8 *prev_bssid) | |
b23aa676 | 973 | { |
b23aa676 | 974 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
975 | int err; |
976 | ||
977 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 978 | |
fffd0934 | 979 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 980 | kzfree(wdev->connect_keys); |
fffd0934 JB |
981 | wdev->connect_keys = NULL; |
982 | } | |
983 | ||
7e7c8926 BG |
984 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
985 | rdev->wiphy.ht_capa_mod_mask); | |
986 | ||
fffd0934 JB |
987 | if (connkeys && connkeys->def >= 0) { |
988 | int idx; | |
bcba8eae | 989 | u32 cipher; |
fffd0934 JB |
990 | |
991 | idx = connkeys->def; | |
bcba8eae | 992 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 993 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
994 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
995 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
996 | connect->key_idx = idx; |
997 | connect->key = connkeys->params[idx].key; | |
998 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
999 | |
1000 | /* | |
1001 | * If ciphers are not set (e.g. when going through | |
1002 | * iwconfig), we have to set them appropriately here. | |
1003 | */ | |
1004 | if (connect->crypto.cipher_group == 0) | |
1005 | connect->crypto.cipher_group = cipher; | |
1006 | ||
1007 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
1008 | connect->crypto.n_ciphers_pairwise = 1; | |
1009 | connect->crypto.ciphers_pairwise[0] = cipher; | |
1010 | } | |
fffd0934 JB |
1011 | } |
1012 | } | |
1013 | ||
ceca7b71 JB |
1014 | wdev->connect_keys = connkeys; |
1015 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
1016 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 1017 | |
ceca7b71 JB |
1018 | if (!rdev->ops->connect) |
1019 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
1020 | else | |
e35e4d28 | 1021 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 1022 | |
ceca7b71 JB |
1023 | if (err) { |
1024 | wdev->connect_keys = NULL; | |
1025 | wdev->ssid_len = 0; | |
1026 | return err; | |
6829c878 | 1027 | } |
ceca7b71 JB |
1028 | |
1029 | return 0; | |
b23aa676 SO |
1030 | } |
1031 | ||
83739b03 JB |
1032 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
1033 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 1034 | { |
6829c878 | 1035 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 1036 | int err = 0; |
b23aa676 | 1037 | |
667503dd JB |
1038 | ASSERT_WDEV_LOCK(wdev); |
1039 | ||
b47f610b | 1040 | kzfree(wdev->connect_keys); |
fffd0934 JB |
1041 | wdev->connect_keys = NULL; |
1042 | ||
dee8a973 | 1043 | if (wdev->conn) |
ceca7b71 | 1044 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 1045 | else if (!rdev->ops->disconnect) |
ceca7b71 | 1046 | cfg80211_mlme_down(rdev, dev); |
dee8a973 | 1047 | else if (wdev->current_bss) |
e35e4d28 | 1048 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 1049 | |
ceca7b71 | 1050 | return err; |
19957bb3 | 1051 | } |