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. | |
29ce6ecb | 8 | * Copyright 2017 Intel Deutschland GmbH |
b23aa676 SO |
9 | */ |
10 | ||
11 | #include <linux/etherdevice.h> | |
12 | #include <linux/if_arp.h> | |
5a0e3ad6 | 13 | #include <linux/slab.h> |
b23aa676 | 14 | #include <linux/workqueue.h> |
a9a11622 | 15 | #include <linux/wireless.h> |
bc3b2d7f | 16 | #include <linux/export.h> |
a9a11622 | 17 | #include <net/iw_handler.h> |
b23aa676 SO |
18 | #include <net/cfg80211.h> |
19 | #include <net/rtnetlink.h> | |
20 | #include "nl80211.h" | |
8b19e6ca | 21 | #include "reg.h" |
e35e4d28 | 22 | #include "rdev-ops.h" |
b23aa676 | 23 | |
ceca7b71 JB |
24 | /* |
25 | * Software SME in cfg80211, using auth/assoc/deauth calls to the | |
26 | * driver. This is is for implementing nl80211's connect/disconnect | |
27 | * and wireless extensions (if configured.) | |
28 | */ | |
29 | ||
6829c878 JB |
30 | struct cfg80211_conn { |
31 | struct cfg80211_connect_params params; | |
32 | /* these are sub-states of the _CONNECTING sme_state */ | |
33 | enum { | |
6829c878 JB |
34 | CFG80211_CONN_SCANNING, |
35 | CFG80211_CONN_SCAN_AGAIN, | |
36 | CFG80211_CONN_AUTHENTICATE_NEXT, | |
37 | CFG80211_CONN_AUTHENTICATING, | |
3093ebbe | 38 | CFG80211_CONN_AUTH_FAILED_TIMEOUT, |
6829c878 JB |
39 | CFG80211_CONN_ASSOCIATE_NEXT, |
40 | CFG80211_CONN_ASSOCIATING, | |
923a0e7d | 41 | CFG80211_CONN_ASSOC_FAILED, |
3093ebbe | 42 | CFG80211_CONN_ASSOC_FAILED_TIMEOUT, |
ceca7b71 | 43 | CFG80211_CONN_DEAUTH, |
e6f462df | 44 | CFG80211_CONN_ABANDON, |
ceca7b71 | 45 | CFG80211_CONN_CONNECTED, |
6829c878 | 46 | } state; |
f401a6f7 | 47 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
46b9d180 | 48 | const u8 *ie; |
6829c878 | 49 | size_t ie_len; |
f401a6f7 | 50 | bool auto_auth, prev_bssid_valid; |
6829c878 JB |
51 | }; |
52 | ||
ceca7b71 | 53 | static void cfg80211_sme_free(struct wireless_dev *wdev) |
09d989d1 | 54 | { |
ceca7b71 JB |
55 | if (!wdev->conn) |
56 | return; | |
09d989d1 | 57 | |
ceca7b71 JB |
58 | kfree(wdev->conn->ie); |
59 | kfree(wdev->conn); | |
60 | wdev->conn = NULL; | |
09d989d1 LR |
61 | } |
62 | ||
6829c878 JB |
63 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
64 | { | |
f26cbf40 | 65 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 JB |
66 | struct cfg80211_scan_request *request; |
67 | int n_channels, err; | |
68 | ||
69 | ASSERT_RTNL(); | |
667503dd | 70 | ASSERT_WDEV_LOCK(wdev); |
6829c878 | 71 | |
f9d15d16 | 72 | if (rdev->scan_req || rdev->scan_msg) |
6829c878 JB |
73 | return -EBUSY; |
74 | ||
bdfbec2d | 75 | if (wdev->conn->params.channel) |
6829c878 | 76 | n_channels = 1; |
bdfbec2d IP |
77 | else |
78 | n_channels = ieee80211_get_num_supported_channels(wdev->wiphy); | |
6829c878 | 79 | |
6829c878 JB |
80 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
81 | sizeof(request->channels[0]) * n_channels, | |
82 | GFP_KERNEL); | |
83 | if (!request) | |
84 | return -ENOMEM; | |
85 | ||
2a84ee86 | 86 | if (wdev->conn->params.channel) { |
57fbcce3 | 87 | enum nl80211_band band = wdev->conn->params.channel->band; |
2a84ee86 KB |
88 | struct ieee80211_supported_band *sband = |
89 | wdev->wiphy->bands[band]; | |
90 | ||
91 | if (!sband) { | |
92 | kfree(request); | |
93 | return -EINVAL; | |
94 | } | |
6829c878 | 95 | request->channels[0] = wdev->conn->params.channel; |
2a84ee86 KB |
96 | request->rates[band] = (1 << sband->n_bitrates) - 1; |
97 | } else { | |
6829c878 | 98 | int i = 0, j; |
57fbcce3 | 99 | enum nl80211_band band; |
e3081501 RM |
100 | struct ieee80211_supported_band *bands; |
101 | struct ieee80211_channel *channel; | |
6829c878 | 102 | |
57fbcce3 | 103 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
e3081501 RM |
104 | bands = wdev->wiphy->bands[band]; |
105 | if (!bands) | |
6829c878 | 106 | continue; |
e3081501 RM |
107 | for (j = 0; j < bands->n_channels; j++) { |
108 | channel = &bands->channels[j]; | |
109 | if (channel->flags & IEEE80211_CHAN_DISABLED) | |
110 | continue; | |
111 | request->channels[i++] = channel; | |
112 | } | |
113 | request->rates[band] = (1 << bands->n_bitrates) - 1; | |
6829c878 | 114 | } |
e3081501 | 115 | n_channels = i; |
6829c878 JB |
116 | } |
117 | request->n_channels = n_channels; | |
5ba63533 | 118 | request->ssids = (void *)&request->channels[n_channels]; |
6829c878 JB |
119 | request->n_ssids = 1; |
120 | ||
121 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, | |
122 | wdev->conn->params.ssid_len); | |
123 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; | |
124 | ||
818965d3 JM |
125 | eth_broadcast_addr(request->bssid); |
126 | ||
fd014284 | 127 | request->wdev = wdev; |
79c97e97 | 128 | request->wiphy = &rdev->wiphy; |
15d6030b | 129 | request->scan_start = jiffies; |
6829c878 | 130 | |
79c97e97 | 131 | rdev->scan_req = request; |
6829c878 | 132 | |
e35e4d28 | 133 | err = rdev_scan(rdev, request); |
6829c878 JB |
134 | if (!err) { |
135 | wdev->conn->state = CFG80211_CONN_SCANNING; | |
fd014284 | 136 | nl80211_send_scan_start(rdev, wdev); |
463d0183 | 137 | dev_hold(wdev->netdev); |
6829c878 | 138 | } else { |
79c97e97 | 139 | rdev->scan_req = NULL; |
6829c878 JB |
140 | kfree(request); |
141 | } | |
142 | return err; | |
143 | } | |
144 | ||
3093ebbe PK |
145 | static int cfg80211_conn_do_work(struct wireless_dev *wdev, |
146 | enum nl80211_timeout_reason *treason) | |
6829c878 | 147 | { |
f26cbf40 | 148 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
19957bb3 | 149 | struct cfg80211_connect_params *params; |
f62fab73 | 150 | struct cfg80211_assoc_request req = {}; |
19957bb3 | 151 | int err; |
6829c878 | 152 | |
667503dd JB |
153 | ASSERT_WDEV_LOCK(wdev); |
154 | ||
6829c878 JB |
155 | if (!wdev->conn) |
156 | return 0; | |
157 | ||
19957bb3 JB |
158 | params = &wdev->conn->params; |
159 | ||
6829c878 | 160 | switch (wdev->conn->state) { |
ceca7b71 JB |
161 | case CFG80211_CONN_SCANNING: |
162 | /* didn't find it during scan ... */ | |
163 | return -ENOENT; | |
6829c878 JB |
164 | case CFG80211_CONN_SCAN_AGAIN: |
165 | return cfg80211_conn_scan(wdev); | |
166 | case CFG80211_CONN_AUTHENTICATE_NEXT: | |
2fd05115 JB |
167 | if (WARN_ON(!rdev->ops->auth)) |
168 | return -EOPNOTSUPP; | |
19957bb3 | 169 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
91bf9b26 JB |
170 | return cfg80211_mlme_auth(rdev, wdev->netdev, |
171 | params->channel, params->auth_type, | |
172 | params->bssid, | |
173 | params->ssid, params->ssid_len, | |
174 | NULL, 0, | |
175 | params->key, params->key_len, | |
176 | params->key_idx, NULL, 0); | |
3093ebbe PK |
177 | case CFG80211_CONN_AUTH_FAILED_TIMEOUT: |
178 | *treason = NL80211_TIMEOUT_AUTH; | |
923a0e7d | 179 | return -ENOTCONN; |
6829c878 | 180 | case CFG80211_CONN_ASSOCIATE_NEXT: |
2fd05115 JB |
181 | if (WARN_ON(!rdev->ops->assoc)) |
182 | return -EOPNOTSUPP; | |
19957bb3 | 183 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
f401a6f7 | 184 | if (wdev->conn->prev_bssid_valid) |
f62fab73 JB |
185 | req.prev_bssid = wdev->conn->prev_bssid; |
186 | req.ie = params->ie; | |
187 | req.ie_len = params->ie_len; | |
188 | req.use_mfp = params->mfp != NL80211_MFP_NO; | |
189 | req.crypto = params->crypto; | |
190 | req.flags = params->flags; | |
191 | req.ht_capa = params->ht_capa; | |
192 | req.ht_capa_mask = params->ht_capa_mask; | |
193 | req.vht_capa = params->vht_capa; | |
194 | req.vht_capa_mask = params->vht_capa_mask; | |
195 | ||
91bf9b26 JB |
196 | err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
197 | params->bssid, params->ssid, | |
198 | params->ssid_len, &req); | |
19957bb3 | 199 | if (err) |
91bf9b26 JB |
200 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
201 | NULL, 0, | |
202 | WLAN_REASON_DEAUTH_LEAVING, | |
203 | false); | |
19957bb3 | 204 | return err; |
3093ebbe PK |
205 | case CFG80211_CONN_ASSOC_FAILED_TIMEOUT: |
206 | *treason = NL80211_TIMEOUT_ASSOC; | |
207 | /* fall through */ | |
923a0e7d JB |
208 | case CFG80211_CONN_ASSOC_FAILED: |
209 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, | |
210 | NULL, 0, | |
211 | WLAN_REASON_DEAUTH_LEAVING, false); | |
212 | return -ENOTCONN; | |
ceca7b71 | 213 | case CFG80211_CONN_DEAUTH: |
91bf9b26 JB |
214 | cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
215 | NULL, 0, | |
216 | WLAN_REASON_DEAUTH_LEAVING, false); | |
e6f462df JB |
217 | /* fall through */ |
218 | case CFG80211_CONN_ABANDON: | |
923a0e7d JB |
219 | /* free directly, disconnected event already sent */ |
220 | cfg80211_sme_free(wdev); | |
ceca7b71 | 221 | return 0; |
6829c878 JB |
222 | default: |
223 | return 0; | |
224 | } | |
225 | } | |
226 | ||
227 | void cfg80211_conn_work(struct work_struct *work) | |
228 | { | |
79c97e97 | 229 | struct cfg80211_registered_device *rdev = |
6829c878 JB |
230 | container_of(work, struct cfg80211_registered_device, conn_work); |
231 | struct wireless_dev *wdev; | |
7400f42e | 232 | u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
3093ebbe | 233 | enum nl80211_timeout_reason treason; |
6829c878 JB |
234 | |
235 | rtnl_lock(); | |
6829c878 | 236 | |
53873f13 | 237 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
c8157976 JB |
238 | if (!wdev->netdev) |
239 | continue; | |
240 | ||
667503dd JB |
241 | wdev_lock(wdev); |
242 | if (!netif_running(wdev->netdev)) { | |
243 | wdev_unlock(wdev); | |
6829c878 | 244 | continue; |
667503dd | 245 | } |
ceca7b71 JB |
246 | if (!wdev->conn || |
247 | wdev->conn->state == CFG80211_CONN_CONNECTED) { | |
667503dd | 248 | wdev_unlock(wdev); |
6829c878 | 249 | continue; |
667503dd | 250 | } |
7400f42e JB |
251 | if (wdev->conn->params.bssid) { |
252 | memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); | |
253 | bssid = bssid_buf; | |
254 | } | |
3093ebbe PK |
255 | treason = NL80211_TIMEOUT_UNSPECIFIED; |
256 | if (cfg80211_conn_do_work(wdev, &treason)) { | |
5349a0f7 VK |
257 | struct cfg80211_connect_resp_params cr; |
258 | ||
259 | memset(&cr, 0, sizeof(cr)); | |
260 | cr.status = -1; | |
261 | cr.bssid = bssid; | |
262 | cr.timeout_reason = treason; | |
263 | __cfg80211_connect_result(wdev->netdev, &cr, false); | |
ceca7b71 | 264 | } |
667503dd | 265 | wdev_unlock(wdev); |
6829c878 JB |
266 | } |
267 | ||
6829c878 JB |
268 | rtnl_unlock(); |
269 | } | |
270 | ||
0e3a39b5 | 271 | /* Returned bss is reference counted and must be cleaned up appropriately. */ |
bbac31f4 | 272 | static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
6829c878 | 273 | { |
f26cbf40 | 274 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
6829c878 | 275 | struct cfg80211_bss *bss; |
6829c878 | 276 | |
667503dd JB |
277 | ASSERT_WDEV_LOCK(wdev); |
278 | ||
ed9d0102 JM |
279 | bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
280 | wdev->conn->params.bssid, | |
6829c878 JB |
281 | wdev->conn->params.ssid, |
282 | wdev->conn->params.ssid_len, | |
34d50519 | 283 | wdev->conn_bss_type, |
6eb18137 | 284 | IEEE80211_PRIVACY(wdev->conn->params.privacy)); |
6829c878 | 285 | if (!bss) |
bbac31f4 | 286 | return NULL; |
6829c878 JB |
287 | |
288 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); | |
289 | wdev->conn->params.bssid = wdev->conn->bssid; | |
290 | wdev->conn->params.channel = bss->channel; | |
291 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
79c97e97 | 292 | schedule_work(&rdev->conn_work); |
6829c878 | 293 | |
bbac31f4 | 294 | return bss; |
6829c878 JB |
295 | } |
296 | ||
667503dd | 297 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
6829c878 JB |
298 | { |
299 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 300 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
bbac31f4 | 301 | struct cfg80211_bss *bss; |
6829c878 | 302 | |
667503dd JB |
303 | ASSERT_WDEV_LOCK(wdev); |
304 | ||
d4b1a687 | 305 | if (!wdev->conn) |
6829c878 JB |
306 | return; |
307 | ||
308 | if (wdev->conn->state != CFG80211_CONN_SCANNING && | |
309 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) | |
310 | return; | |
311 | ||
bbac31f4 | 312 | bss = cfg80211_get_conn_bss(wdev); |
ceca7b71 | 313 | if (bss) |
5b112d3d | 314 | cfg80211_put_bss(&rdev->wiphy, bss); |
ceca7b71 JB |
315 | else |
316 | schedule_work(&rdev->conn_work); | |
6829c878 JB |
317 | } |
318 | ||
667503dd JB |
319 | void cfg80211_sme_scan_done(struct net_device *dev) |
320 | { | |
321 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
322 | ||
323 | wdev_lock(wdev); | |
324 | __cfg80211_sme_scan_done(dev); | |
325 | wdev_unlock(wdev); | |
326 | } | |
327 | ||
ceca7b71 | 328 | void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
6829c878 | 329 | { |
6829c878 | 330 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 331 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6829c878 JB |
332 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
333 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
334 | ||
667503dd JB |
335 | ASSERT_WDEV_LOCK(wdev); |
336 | ||
ceca7b71 | 337 | if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
6829c878 JB |
338 | return; |
339 | ||
340 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && | |
341 | wdev->conn->auto_auth && | |
342 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { | |
343 | /* select automatically between only open, shared, leap */ | |
344 | switch (wdev->conn->params.auth_type) { | |
345 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
fffd0934 JB |
346 | if (wdev->connect_keys) |
347 | wdev->conn->params.auth_type = | |
348 | NL80211_AUTHTYPE_SHARED_KEY; | |
349 | else | |
350 | wdev->conn->params.auth_type = | |
351 | NL80211_AUTHTYPE_NETWORK_EAP; | |
6829c878 JB |
352 | break; |
353 | case NL80211_AUTHTYPE_SHARED_KEY: | |
354 | wdev->conn->params.auth_type = | |
355 | NL80211_AUTHTYPE_NETWORK_EAP; | |
356 | break; | |
357 | default: | |
358 | /* huh? */ | |
359 | wdev->conn->params.auth_type = | |
360 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
361 | break; | |
362 | } | |
363 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; | |
364 | schedule_work(&rdev->conn_work); | |
19957bb3 | 365 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
5349a0f7 VK |
366 | struct cfg80211_connect_resp_params cr; |
367 | ||
368 | memset(&cr, 0, sizeof(cr)); | |
369 | cr.status = status_code; | |
370 | cr.bssid = mgmt->bssid; | |
371 | cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED; | |
372 | __cfg80211_connect_result(wdev->netdev, &cr, false); | |
ceca7b71 | 373 | } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
6829c878 JB |
374 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
375 | schedule_work(&rdev->conn_work); | |
376 | } | |
377 | } | |
b23aa676 | 378 | |
ceca7b71 | 379 | bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
f401a6f7 | 380 | { |
f26cbf40 | 381 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
f401a6f7 | 382 | |
ceca7b71 | 383 | if (!wdev->conn) |
f401a6f7 JB |
384 | return false; |
385 | ||
ceca7b71 JB |
386 | if (status == WLAN_STATUS_SUCCESS) { |
387 | wdev->conn->state = CFG80211_CONN_CONNECTED; | |
f401a6f7 | 388 | return false; |
ceca7b71 | 389 | } |
f401a6f7 | 390 | |
ceca7b71 JB |
391 | if (wdev->conn->prev_bssid_valid) { |
392 | /* | |
393 | * Some stupid APs don't accept reassoc, so we | |
394 | * need to fall back to trying regular assoc; | |
395 | * return true so no event is sent to userspace. | |
396 | */ | |
397 | wdev->conn->prev_bssid_valid = false; | |
398 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; | |
399 | schedule_work(&rdev->conn_work); | |
400 | return true; | |
401 | } | |
402 | ||
923a0e7d | 403 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
f401a6f7 | 404 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
405 | return false; |
406 | } | |
f401a6f7 | 407 | |
ceca7b71 JB |
408 | void cfg80211_sme_deauth(struct wireless_dev *wdev) |
409 | { | |
410 | cfg80211_sme_free(wdev); | |
f401a6f7 JB |
411 | } |
412 | ||
ceca7b71 | 413 | void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
7d930bc3 | 414 | { |
f26cbf40 | 415 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
416 | |
417 | if (!wdev->conn) | |
418 | return; | |
419 | ||
3093ebbe | 420 | wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT; |
923a0e7d | 421 | schedule_work(&rdev->conn_work); |
ceca7b71 | 422 | } |
7d930bc3 | 423 | |
ceca7b71 JB |
424 | void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
425 | { | |
f26cbf40 | 426 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
427 | |
428 | if (!wdev->conn) | |
429 | return; | |
430 | ||
431 | wdev->conn->state = CFG80211_CONN_DEAUTH; | |
7d930bc3 JB |
432 | schedule_work(&rdev->conn_work); |
433 | } | |
434 | ||
ceca7b71 JB |
435 | void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
436 | { | |
f26cbf40 | 437 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
923a0e7d JB |
438 | |
439 | if (!wdev->conn) | |
440 | return; | |
441 | ||
3093ebbe | 442 | wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT; |
923a0e7d | 443 | schedule_work(&rdev->conn_work); |
ceca7b71 JB |
444 | } |
445 | ||
e6f462df JB |
446 | void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev) |
447 | { | |
448 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
449 | ||
450 | if (!wdev->conn) | |
451 | return; | |
452 | ||
453 | wdev->conn->state = CFG80211_CONN_ABANDON; | |
454 | schedule_work(&rdev->conn_work); | |
455 | } | |
456 | ||
46b9d180 JB |
457 | static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev, |
458 | const u8 *ies, size_t ies_len, | |
459 | const u8 **out_ies, size_t *out_ies_len) | |
460 | { | |
461 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
462 | u8 *buf; | |
463 | size_t offs; | |
464 | ||
465 | if (!rdev->wiphy.extended_capabilities_len || | |
466 | (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) { | |
467 | *out_ies = kmemdup(ies, ies_len, GFP_KERNEL); | |
468 | if (!*out_ies) | |
469 | return -ENOMEM; | |
470 | *out_ies_len = ies_len; | |
471 | return 0; | |
472 | } | |
473 | ||
474 | buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2, | |
475 | GFP_KERNEL); | |
476 | if (!buf) | |
477 | return -ENOMEM; | |
478 | ||
479 | if (ies_len) { | |
480 | static const u8 before_extcapa[] = { | |
481 | /* not listing IEs expected to be created by driver */ | |
482 | WLAN_EID_RSN, | |
483 | WLAN_EID_QOS_CAPA, | |
484 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
485 | WLAN_EID_MOBILITY_DOMAIN, | |
486 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
487 | WLAN_EID_BSS_COEX_2040, | |
488 | }; | |
489 | ||
490 | offs = ieee80211_ie_split(ies, ies_len, before_extcapa, | |
491 | ARRAY_SIZE(before_extcapa), 0); | |
492 | memcpy(buf, ies, offs); | |
493 | /* leave a whole for extended capabilities IE */ | |
494 | memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2, | |
495 | ies + offs, ies_len - offs); | |
496 | } else { | |
497 | offs = 0; | |
498 | } | |
499 | ||
500 | /* place extended capabilities IE (with only driver capabilities) */ | |
501 | buf[offs] = WLAN_EID_EXT_CAPABILITY; | |
502 | buf[offs + 1] = rdev->wiphy.extended_capabilities_len; | |
503 | memcpy(buf + offs + 2, | |
504 | rdev->wiphy.extended_capabilities, | |
505 | rdev->wiphy.extended_capabilities_len); | |
506 | ||
507 | *out_ies = buf; | |
508 | *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2; | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
ceca7b71 JB |
513 | static int cfg80211_sme_connect(struct wireless_dev *wdev, |
514 | struct cfg80211_connect_params *connect, | |
515 | const u8 *prev_bssid) | |
516 | { | |
f26cbf40 | 517 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
518 | struct cfg80211_bss *bss; |
519 | int err; | |
520 | ||
521 | if (!rdev->ops->auth || !rdev->ops->assoc) | |
522 | return -EOPNOTSUPP; | |
523 | ||
4ce2bd9c JM |
524 | if (wdev->current_bss) { |
525 | if (!prev_bssid) | |
526 | return -EALREADY; | |
527 | if (prev_bssid && | |
528 | !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid)) | |
529 | return -ENOTCONN; | |
530 | cfg80211_unhold_bss(wdev->current_bss); | |
531 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); | |
532 | wdev->current_bss = NULL; | |
533 | ||
534 | cfg80211_sme_free(wdev); | |
535 | } | |
ceca7b71 JB |
536 | |
537 | if (WARN_ON(wdev->conn)) | |
538 | return -EINPROGRESS; | |
539 | ||
540 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); | |
541 | if (!wdev->conn) | |
542 | return -ENOMEM; | |
543 | ||
544 | /* | |
545 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. | |
546 | */ | |
547 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); | |
548 | if (connect->bssid) { | |
549 | wdev->conn->params.bssid = wdev->conn->bssid; | |
550 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); | |
551 | } | |
552 | ||
46b9d180 JB |
553 | if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len, |
554 | &wdev->conn->ie, | |
555 | &wdev->conn->params.ie_len)) { | |
556 | kfree(wdev->conn); | |
557 | wdev->conn = NULL; | |
558 | return -ENOMEM; | |
ceca7b71 | 559 | } |
46b9d180 | 560 | wdev->conn->params.ie = wdev->conn->ie; |
ceca7b71 JB |
561 | |
562 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { | |
563 | wdev->conn->auto_auth = true; | |
564 | /* start with open system ... should mostly work */ | |
565 | wdev->conn->params.auth_type = | |
566 | NL80211_AUTHTYPE_OPEN_SYSTEM; | |
567 | } else { | |
568 | wdev->conn->auto_auth = false; | |
569 | } | |
570 | ||
571 | wdev->conn->params.ssid = wdev->ssid; | |
babd3a27 | 572 | wdev->conn->params.ssid_len = wdev->ssid_len; |
ceca7b71 JB |
573 | |
574 | /* see if we have the bss already */ | |
575 | bss = cfg80211_get_conn_bss(wdev); | |
576 | ||
577 | if (prev_bssid) { | |
578 | memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); | |
579 | wdev->conn->prev_bssid_valid = true; | |
580 | } | |
581 | ||
582 | /* we're good if we have a matching bss struct */ | |
583 | if (bss) { | |
3093ebbe PK |
584 | enum nl80211_timeout_reason treason; |
585 | ||
586 | err = cfg80211_conn_do_work(wdev, &treason); | |
ceca7b71 JB |
587 | cfg80211_put_bss(wdev->wiphy, bss); |
588 | } else { | |
589 | /* otherwise we'll need to scan for the AP first */ | |
590 | err = cfg80211_conn_scan(wdev); | |
591 | ||
592 | /* | |
593 | * If we can't scan right now, then we need to scan again | |
594 | * after the current scan finished, since the parameters | |
595 | * changed (unless we find a good AP anyway). | |
596 | */ | |
597 | if (err == -EBUSY) { | |
598 | err = 0; | |
599 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; | |
600 | } | |
601 | } | |
602 | ||
603 | if (err) | |
604 | cfg80211_sme_free(wdev); | |
605 | ||
606 | return err; | |
607 | } | |
608 | ||
609 | static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) | |
610 | { | |
f26cbf40 | 611 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
ceca7b71 JB |
612 | int err; |
613 | ||
614 | if (!wdev->conn) | |
615 | return 0; | |
616 | ||
617 | if (!rdev->ops->deauth) | |
618 | return -EOPNOTSUPP; | |
619 | ||
620 | if (wdev->conn->state == CFG80211_CONN_SCANNING || | |
621 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { | |
622 | err = 0; | |
623 | goto out; | |
624 | } | |
625 | ||
626 | /* wdev->conn->params.bssid must be set if > SCANNING */ | |
627 | err = cfg80211_mlme_deauth(rdev, wdev->netdev, | |
628 | wdev->conn->params.bssid, | |
629 | NULL, 0, reason, false); | |
630 | out: | |
631 | cfg80211_sme_free(wdev); | |
632 | return err; | |
633 | } | |
634 | ||
635 | /* | |
636 | * code shared for in-device and software SME | |
637 | */ | |
638 | ||
639 | static bool cfg80211_is_all_idle(void) | |
640 | { | |
641 | struct cfg80211_registered_device *rdev; | |
642 | struct wireless_dev *wdev; | |
643 | bool is_all_idle = true; | |
644 | ||
645 | /* | |
646 | * All devices must be idle as otherwise if you are actively | |
647 | * scanning some new beacon hints could be learned and would | |
648 | * count as new regulatory hints. | |
649 | */ | |
650 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
53873f13 | 651 | list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
ceca7b71 JB |
652 | wdev_lock(wdev); |
653 | if (wdev->conn || wdev->current_bss) | |
654 | is_all_idle = false; | |
655 | wdev_unlock(wdev); | |
656 | } | |
657 | } | |
658 | ||
659 | return is_all_idle; | |
660 | } | |
661 | ||
662 | static void disconnect_work(struct work_struct *work) | |
663 | { | |
664 | rtnl_lock(); | |
665 | if (cfg80211_is_all_idle()) | |
666 | regulatory_hint_disconnect(); | |
667 | rtnl_unlock(); | |
668 | } | |
669 | ||
670 | static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); | |
671 | ||
672 | ||
673 | /* | |
674 | * API calls for drivers implementing connect/disconnect and | |
675 | * SME event handling | |
676 | */ | |
677 | ||
6f390908 | 678 | /* This method must consume bss one way or another */ |
5349a0f7 VK |
679 | void __cfg80211_connect_result(struct net_device *dev, |
680 | struct cfg80211_connect_resp_params *cr, | |
681 | bool wextev) | |
b23aa676 SO |
682 | { |
683 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9caf0364 | 684 | const u8 *country_ie; |
3d23e349 | 685 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
686 | union iwreq_data wrqu; |
687 | #endif | |
688 | ||
667503dd JB |
689 | ASSERT_WDEV_LOCK(wdev); |
690 | ||
074ac8df | 691 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
6f390908 | 692 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
5349a0f7 | 693 | cfg80211_put_bss(wdev->wiphy, cr->bss); |
b23aa676 | 694 | return; |
6f390908 | 695 | } |
b23aa676 | 696 | |
5349a0f7 VK |
697 | nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr, |
698 | GFP_KERNEL); | |
e45cd82a | 699 | |
3d23e349 | 700 | #ifdef CONFIG_CFG80211_WEXT |
e45cd82a | 701 | if (wextev) { |
5349a0f7 | 702 | if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 703 | memset(&wrqu, 0, sizeof(wrqu)); |
5349a0f7 VK |
704 | wrqu.data.length = cr->req_ie_len; |
705 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, | |
706 | cr->req_ie); | |
e45cd82a JB |
707 | } |
708 | ||
5349a0f7 | 709 | if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) { |
e45cd82a | 710 | memset(&wrqu, 0, sizeof(wrqu)); |
5349a0f7 VK |
711 | wrqu.data.length = cr->resp_ie_len; |
712 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, | |
713 | cr->resp_ie); | |
e45cd82a JB |
714 | } |
715 | ||
716 | memset(&wrqu, 0, sizeof(wrqu)); | |
717 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
5349a0f7 VK |
718 | if (cr->bssid && cr->status == WLAN_STATUS_SUCCESS) { |
719 | memcpy(wrqu.ap_addr.sa_data, cr->bssid, ETH_ALEN); | |
720 | memcpy(wdev->wext.prev_bssid, cr->bssid, ETH_ALEN); | |
f401a6f7 JB |
721 | wdev->wext.prev_bssid_valid = true; |
722 | } | |
e45cd82a JB |
723 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
724 | } | |
725 | #endif | |
726 | ||
5349a0f7 | 727 | if (!cr->bss && (cr->status == WLAN_STATUS_SUCCESS)) { |
f26cbf40 | 728 | WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
5349a0f7 VK |
729 | cr->bss = cfg80211_get_bss(wdev->wiphy, NULL, cr->bssid, |
730 | wdev->ssid, wdev->ssid_len, | |
731 | wdev->conn_bss_type, | |
732 | IEEE80211_PRIVACY_ANY); | |
733 | if (cr->bss) | |
734 | cfg80211_hold_bss(bss_from_pub(cr->bss)); | |
4c4d684a UR |
735 | } |
736 | ||
df7fc0f9 JB |
737 | if (wdev->current_bss) { |
738 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 739 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
df7fc0f9 JB |
740 | wdev->current_bss = NULL; |
741 | } | |
742 | ||
5349a0f7 | 743 | if (cr->status != WLAN_STATUS_SUCCESS) { |
b47f610b | 744 | kzfree(wdev->connect_keys); |
fffd0934 | 745 | wdev->connect_keys = NULL; |
8dadadb7 | 746 | wdev->ssid_len = 0; |
bd2522b1 | 747 | wdev->conn_owner_nlportid = 0; |
5349a0f7 VK |
748 | if (cr->bss) { |
749 | cfg80211_unhold_bss(bss_from_pub(cr->bss)); | |
750 | cfg80211_put_bss(wdev->wiphy, cr->bss); | |
f1940c57 | 751 | } |
c1fbb258 | 752 | cfg80211_sme_free(wdev); |
fffd0934 | 753 | return; |
b23aa676 | 754 | } |
fffd0934 | 755 | |
5349a0f7 | 756 | if (WARN_ON(!cr->bss)) |
4c4d684a | 757 | return; |
fffd0934 | 758 | |
5349a0f7 | 759 | wdev->current_bss = bss_from_pub(cr->bss); |
fffd0934 | 760 | |
b8676221 DS |
761 | if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP)) |
762 | cfg80211_upload_connect_keys(wdev); | |
8b19e6ca | 763 | |
9caf0364 | 764 | rcu_read_lock(); |
5349a0f7 | 765 | country_ie = ieee80211_bss_get_ie(cr->bss, WLAN_EID_COUNTRY); |
9caf0364 JB |
766 | if (!country_ie) { |
767 | rcu_read_unlock(); | |
768 | return; | |
769 | } | |
770 | ||
771 | country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); | |
772 | rcu_read_unlock(); | |
8b19e6ca LR |
773 | |
774 | if (!country_ie) | |
775 | return; | |
776 | ||
777 | /* | |
778 | * ieee80211_bss_get_ie() ensures we can access: | |
779 | * - country_ie + 2, the start of the country ie data, and | |
780 | * - and country_ie[1] which is the IE length | |
781 | */ | |
5349a0f7 | 782 | regulatory_hint_country_ie(wdev->wiphy, cr->bss->channel->band, |
789fd033 | 783 | country_ie + 2, country_ie[1]); |
9caf0364 | 784 | kfree(country_ie); |
b23aa676 | 785 | } |
f2129354 | 786 | |
e7054989 | 787 | /* Consumes bss object one way or another */ |
5349a0f7 VK |
788 | void cfg80211_connect_done(struct net_device *dev, |
789 | struct cfg80211_connect_resp_params *params, | |
790 | gfp_t gfp) | |
f2129354 | 791 | { |
667503dd | 792 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 793 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
794 | struct cfg80211_event *ev; |
795 | unsigned long flags; | |
5349a0f7 | 796 | u8 *next; |
667503dd | 797 | |
5349a0f7 | 798 | if (params->bss) { |
e7054989 | 799 | /* Make sure the bss entry provided by the driver is valid. */ |
5349a0f7 | 800 | struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss); |
e7054989 KV |
801 | |
802 | if (WARN_ON(list_empty(&ibss->list))) { | |
5349a0f7 | 803 | cfg80211_put_bss(wdev->wiphy, params->bss); |
e7054989 KV |
804 | return; |
805 | } | |
806 | } | |
807 | ||
5349a0f7 | 808 | ev = kzalloc(sizeof(*ev) + (params->bssid ? ETH_ALEN : 0) + |
a3caf744 VK |
809 | params->req_ie_len + params->resp_ie_len + |
810 | params->fils_kek_len + params->pmk_len + | |
811 | (params->pmkid ? WLAN_PMKID_LEN : 0), gfp); | |
e7054989 | 812 | if (!ev) { |
5349a0f7 | 813 | cfg80211_put_bss(wdev->wiphy, params->bss); |
667503dd | 814 | return; |
e7054989 | 815 | } |
667503dd JB |
816 | |
817 | ev->type = EVENT_CONNECT_RESULT; | |
5349a0f7 VK |
818 | next = ((u8 *)ev) + sizeof(*ev); |
819 | if (params->bssid) { | |
820 | ev->cr.bssid = next; | |
821 | memcpy((void *)ev->cr.bssid, params->bssid, ETH_ALEN); | |
822 | next += ETH_ALEN; | |
7834704b | 823 | } |
5349a0f7 VK |
824 | if (params->req_ie_len) { |
825 | ev->cr.req_ie = next; | |
826 | ev->cr.req_ie_len = params->req_ie_len; | |
827 | memcpy((void *)ev->cr.req_ie, params->req_ie, | |
828 | params->req_ie_len); | |
829 | next += params->req_ie_len; | |
7834704b | 830 | } |
5349a0f7 VK |
831 | if (params->resp_ie_len) { |
832 | ev->cr.resp_ie = next; | |
833 | ev->cr.resp_ie_len = params->resp_ie_len; | |
834 | memcpy((void *)ev->cr.resp_ie, params->resp_ie, | |
835 | params->resp_ie_len); | |
836 | next += params->resp_ie_len; | |
837 | } | |
a3caf744 VK |
838 | if (params->fils_kek_len) { |
839 | ev->cr.fils_kek = next; | |
840 | ev->cr.fils_kek_len = params->fils_kek_len; | |
841 | memcpy((void *)ev->cr.fils_kek, params->fils_kek, | |
842 | params->fils_kek_len); | |
843 | next += params->fils_kek_len; | |
844 | } | |
845 | if (params->pmk_len) { | |
846 | ev->cr.pmk = next; | |
847 | ev->cr.pmk_len = params->pmk_len; | |
848 | memcpy((void *)ev->cr.pmk, params->pmk, params->pmk_len); | |
849 | next += params->pmk_len; | |
850 | } | |
851 | if (params->pmkid) { | |
852 | ev->cr.pmkid = next; | |
853 | memcpy((void *)ev->cr.pmkid, params->pmkid, WLAN_PMKID_LEN); | |
854 | next += WLAN_PMKID_LEN; | |
855 | } | |
856 | ev->cr.update_erp_next_seq_num = params->update_erp_next_seq_num; | |
857 | if (params->update_erp_next_seq_num) | |
858 | ev->cr.fils_erp_next_seq_num = params->fils_erp_next_seq_num; | |
5349a0f7 VK |
859 | if (params->bss) |
860 | cfg80211_hold_bss(bss_from_pub(params->bss)); | |
861 | ev->cr.bss = params->bss; | |
862 | ev->cr.status = params->status; | |
863 | ev->cr.timeout_reason = params->timeout_reason; | |
667503dd JB |
864 | |
865 | spin_lock_irqsave(&wdev->event_lock, flags); | |
866 | list_add_tail(&ev->list, &wdev->event_list); | |
867 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 868 | queue_work(cfg80211_wq, &rdev->event_work); |
f2129354 | 869 | } |
5349a0f7 | 870 | EXPORT_SYMBOL(cfg80211_connect_done); |
b23aa676 | 871 | |
0e3a39b5 | 872 | /* Consumes bss object one way or another */ |
ed9d0102 | 873 | void __cfg80211_roamed(struct wireless_dev *wdev, |
29ce6ecb | 874 | struct cfg80211_roam_info *info) |
b23aa676 | 875 | { |
3d23e349 | 876 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
877 | union iwreq_data wrqu; |
878 | #endif | |
667503dd JB |
879 | ASSERT_WDEV_LOCK(wdev); |
880 | ||
074ac8df JB |
881 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
882 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
adbde344 | 883 | goto out; |
b23aa676 | 884 | |
ceca7b71 | 885 | if (WARN_ON(!wdev->current_bss)) |
adbde344 | 886 | goto out; |
b23aa676 SO |
887 | |
888 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 889 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
890 | wdev->current_bss = NULL; |
891 | ||
29ce6ecb AS |
892 | if (WARN_ON(!info->bss)) |
893 | return; | |
894 | ||
895 | cfg80211_hold_bss(bss_from_pub(info->bss)); | |
896 | wdev->current_bss = bss_from_pub(info->bss); | |
b23aa676 | 897 | |
f26cbf40 | 898 | nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
29ce6ecb | 899 | wdev->netdev, info, GFP_KERNEL); |
b23aa676 | 900 | |
3d23e349 | 901 | #ifdef CONFIG_CFG80211_WEXT |
29ce6ecb | 902 | if (info->req_ie) { |
b23aa676 | 903 | memset(&wrqu, 0, sizeof(wrqu)); |
29ce6ecb | 904 | wrqu.data.length = info->req_ie_len; |
3409ff77 | 905 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
29ce6ecb | 906 | &wrqu, info->req_ie); |
b23aa676 SO |
907 | } |
908 | ||
29ce6ecb | 909 | if (info->resp_ie) { |
b23aa676 | 910 | memset(&wrqu, 0, sizeof(wrqu)); |
29ce6ecb | 911 | wrqu.data.length = info->resp_ie_len; |
667503dd | 912 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
29ce6ecb | 913 | &wrqu, info->resp_ie); |
b23aa676 SO |
914 | } |
915 | ||
916 | memset(&wrqu, 0, sizeof(wrqu)); | |
917 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
29ce6ecb AS |
918 | memcpy(wrqu.ap_addr.sa_data, info->bss->bssid, ETH_ALEN); |
919 | memcpy(wdev->wext.prev_bssid, info->bss->bssid, ETH_ALEN); | |
f401a6f7 | 920 | wdev->wext.prev_bssid_valid = true; |
667503dd | 921 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
b23aa676 | 922 | #endif |
adbde344 VT |
923 | |
924 | return; | |
925 | out: | |
29ce6ecb | 926 | cfg80211_put_bss(wdev->wiphy, info->bss); |
adbde344 | 927 | } |
adbde344 | 928 | |
29ce6ecb AS |
929 | /* Consumes info->bss object one way or another */ |
930 | void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info, | |
931 | gfp_t gfp) | |
667503dd JB |
932 | { |
933 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 934 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
935 | struct cfg80211_event *ev; |
936 | unsigned long flags; | |
937 | ||
29ce6ecb AS |
938 | if (!info->bss) { |
939 | info->bss = cfg80211_get_bss(wdev->wiphy, info->channel, | |
940 | info->bssid, wdev->ssid, | |
941 | wdev->ssid_len, | |
942 | wdev->conn_bss_type, | |
943 | IEEE80211_PRIVACY_ANY); | |
944 | } | |
945 | ||
946 | if (WARN_ON(!info->bss)) | |
adbde344 VT |
947 | return; |
948 | ||
29ce6ecb | 949 | ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len, gfp); |
adbde344 | 950 | if (!ev) { |
29ce6ecb | 951 | cfg80211_put_bss(wdev->wiphy, info->bss); |
667503dd | 952 | return; |
adbde344 | 953 | } |
667503dd JB |
954 | |
955 | ev->type = EVENT_ROAMED; | |
667503dd | 956 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
29ce6ecb AS |
957 | ev->rm.req_ie_len = info->req_ie_len; |
958 | memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len); | |
959 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + info->req_ie_len; | |
960 | ev->rm.resp_ie_len = info->resp_ie_len; | |
961 | memcpy((void *)ev->rm.resp_ie, info->resp_ie, info->resp_ie_len); | |
962 | ev->rm.bss = info->bss; | |
f45cbe6e | 963 | ev->rm.authorized = info->authorized; |
667503dd JB |
964 | |
965 | spin_lock_irqsave(&wdev->event_lock, flags); | |
966 | list_add_tail(&ev->list, &wdev->event_list); | |
967 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 968 | queue_work(cfg80211_wq, &rdev->event_work); |
667503dd | 969 | } |
29ce6ecb | 970 | EXPORT_SYMBOL(cfg80211_roamed); |
b23aa676 | 971 | |
667503dd | 972 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 | 973 | size_t ie_len, u16 reason, bool from_ap) |
b23aa676 SO |
974 | { |
975 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 976 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
fffd0934 | 977 | int i; |
3d23e349 | 978 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
979 | union iwreq_data wrqu; |
980 | #endif | |
981 | ||
667503dd JB |
982 | ASSERT_WDEV_LOCK(wdev); |
983 | ||
074ac8df JB |
984 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
985 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) | |
b23aa676 SO |
986 | return; |
987 | ||
b23aa676 SO |
988 | if (wdev->current_bss) { |
989 | cfg80211_unhold_bss(wdev->current_bss); | |
5b112d3d | 990 | cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
b23aa676 SO |
991 | } |
992 | ||
993 | wdev->current_bss = NULL; | |
8dadadb7 | 994 | wdev->ssid_len = 0; |
bd2522b1 | 995 | wdev->conn_owner_nlportid = 0; |
b23aa676 | 996 | |
fffd0934 JB |
997 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
998 | ||
b8607152 AS |
999 | /* stop critical protocol if supported */ |
1000 | if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) { | |
1001 | rdev->crit_proto_nlportid = 0; | |
1002 | rdev_crit_proto_stop(rdev, wdev); | |
1003 | } | |
1004 | ||
fffd0934 JB |
1005 | /* |
1006 | * Delete all the keys ... pairwise keys can't really | |
1007 | * exist any more anyway, but default keys might. | |
1008 | */ | |
1009 | if (rdev->ops->del_key) | |
1010 | for (i = 0; i < 6; i++) | |
e35e4d28 | 1011 | rdev_del_key(rdev, dev, i, false, NULL); |
b23aa676 | 1012 | |
fa9ffc74 KP |
1013 | rdev_set_qos_map(rdev, dev, NULL); |
1014 | ||
3d23e349 | 1015 | #ifdef CONFIG_CFG80211_WEXT |
b23aa676 SO |
1016 | memset(&wrqu, 0, sizeof(wrqu)); |
1017 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1018 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
5f612033 | 1019 | wdev->wext.connect.ssid_len = 0; |
b23aa676 | 1020 | #endif |
09d989d1 LR |
1021 | |
1022 | schedule_work(&cfg80211_disconnect_work); | |
b23aa676 SO |
1023 | } |
1024 | ||
1025 | void cfg80211_disconnected(struct net_device *dev, u16 reason, | |
80279fb7 JB |
1026 | const u8 *ie, size_t ie_len, |
1027 | bool locally_generated, gfp_t gfp) | |
b23aa676 | 1028 | { |
667503dd | 1029 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 1030 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
667503dd JB |
1031 | struct cfg80211_event *ev; |
1032 | unsigned long flags; | |
1033 | ||
1034 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); | |
1035 | if (!ev) | |
1036 | return; | |
1037 | ||
1038 | ev->type = EVENT_DISCONNECTED; | |
1039 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); | |
1040 | ev->dc.ie_len = ie_len; | |
1041 | memcpy((void *)ev->dc.ie, ie, ie_len); | |
1042 | ev->dc.reason = reason; | |
80279fb7 | 1043 | ev->dc.locally_generated = locally_generated; |
667503dd JB |
1044 | |
1045 | spin_lock_irqsave(&wdev->event_lock, flags); | |
1046 | list_add_tail(&ev->list, &wdev->event_list); | |
1047 | spin_unlock_irqrestore(&wdev->event_lock, flags); | |
e60d7443 | 1048 | queue_work(cfg80211_wq, &rdev->event_work); |
b23aa676 SO |
1049 | } |
1050 | EXPORT_SYMBOL(cfg80211_disconnected); | |
1051 | ||
ceca7b71 JB |
1052 | /* |
1053 | * API calls for nl80211/wext compatibility code | |
1054 | */ | |
83739b03 JB |
1055 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
1056 | struct net_device *dev, | |
1057 | struct cfg80211_connect_params *connect, | |
1058 | struct cfg80211_cached_keys *connkeys, | |
1059 | const u8 *prev_bssid) | |
b23aa676 | 1060 | { |
b23aa676 | 1061 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
667503dd JB |
1062 | int err; |
1063 | ||
1064 | ASSERT_WDEV_LOCK(wdev); | |
b23aa676 | 1065 | |
fffd0934 | 1066 | if (WARN_ON(wdev->connect_keys)) { |
b47f610b | 1067 | kzfree(wdev->connect_keys); |
fffd0934 JB |
1068 | wdev->connect_keys = NULL; |
1069 | } | |
1070 | ||
7e7c8926 BG |
1071 | cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
1072 | rdev->wiphy.ht_capa_mod_mask); | |
1073 | ||
fffd0934 JB |
1074 | if (connkeys && connkeys->def >= 0) { |
1075 | int idx; | |
bcba8eae | 1076 | u32 cipher; |
fffd0934 JB |
1077 | |
1078 | idx = connkeys->def; | |
bcba8eae | 1079 | cipher = connkeys->params[idx].cipher; |
fffd0934 | 1080 | /* If given a WEP key we may need it for shared key auth */ |
bcba8eae SO |
1081 | if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
1082 | cipher == WLAN_CIPHER_SUITE_WEP104) { | |
fffd0934 JB |
1083 | connect->key_idx = idx; |
1084 | connect->key = connkeys->params[idx].key; | |
1085 | connect->key_len = connkeys->params[idx].key_len; | |
bcba8eae SO |
1086 | |
1087 | /* | |
1088 | * If ciphers are not set (e.g. when going through | |
1089 | * iwconfig), we have to set them appropriately here. | |
1090 | */ | |
1091 | if (connect->crypto.cipher_group == 0) | |
1092 | connect->crypto.cipher_group = cipher; | |
1093 | ||
1094 | if (connect->crypto.n_ciphers_pairwise == 0) { | |
1095 | connect->crypto.n_ciphers_pairwise = 1; | |
1096 | connect->crypto.ciphers_pairwise[0] = cipher; | |
1097 | } | |
fffd0934 | 1098 | } |
b8676221 DS |
1099 | |
1100 | connect->crypto.wep_keys = connkeys->params; | |
1101 | connect->crypto.wep_tx_key = connkeys->def; | |
f1c1f17a JB |
1102 | } else { |
1103 | if (WARN_ON(connkeys)) | |
1104 | return -EINVAL; | |
fffd0934 JB |
1105 | } |
1106 | ||
ceca7b71 JB |
1107 | wdev->connect_keys = connkeys; |
1108 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); | |
1109 | wdev->ssid_len = connect->ssid_len; | |
6829c878 | 1110 | |
34d50519 LD |
1111 | wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS : |
1112 | IEEE80211_BSS_TYPE_ESS; | |
1113 | ||
ceca7b71 JB |
1114 | if (!rdev->ops->connect) |
1115 | err = cfg80211_sme_connect(wdev, connect, prev_bssid); | |
1116 | else | |
e35e4d28 | 1117 | err = rdev_connect(rdev, dev, connect); |
b23aa676 | 1118 | |
ceca7b71 JB |
1119 | if (err) { |
1120 | wdev->connect_keys = NULL; | |
1121 | wdev->ssid_len = 0; | |
1122 | return err; | |
6829c878 | 1123 | } |
ceca7b71 JB |
1124 | |
1125 | return 0; | |
b23aa676 SO |
1126 | } |
1127 | ||
83739b03 JB |
1128 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
1129 | struct net_device *dev, u16 reason, bool wextev) | |
b23aa676 | 1130 | { |
6829c878 | 1131 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
dee8a973 | 1132 | int err = 0; |
b23aa676 | 1133 | |
667503dd JB |
1134 | ASSERT_WDEV_LOCK(wdev); |
1135 | ||
b47f610b | 1136 | kzfree(wdev->connect_keys); |
fffd0934 JB |
1137 | wdev->connect_keys = NULL; |
1138 | ||
bd2522b1 AZ |
1139 | wdev->conn_owner_nlportid = 0; |
1140 | ||
dee8a973 | 1141 | if (wdev->conn) |
ceca7b71 | 1142 | err = cfg80211_sme_disconnect(wdev, reason); |
dee8a973 | 1143 | else if (!rdev->ops->disconnect) |
ceca7b71 | 1144 | cfg80211_mlme_down(rdev, dev); |
0711d638 | 1145 | else if (wdev->ssid_len) |
e35e4d28 | 1146 | err = rdev_disconnect(rdev, dev, reason); |
b23aa676 | 1147 | |
ceca7b71 | 1148 | return err; |
19957bb3 | 1149 | } |
bd2522b1 AZ |
1150 | |
1151 | /* | |
1152 | * Used to clean up after the connection / connection attempt owner socket | |
1153 | * disconnects | |
1154 | */ | |
1155 | void cfg80211_autodisconnect_wk(struct work_struct *work) | |
1156 | { | |
1157 | struct wireless_dev *wdev = | |
1158 | container_of(work, struct wireless_dev, disconnect_wk); | |
1159 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); | |
1160 | ||
1161 | wdev_lock(wdev); | |
1162 | ||
1163 | if (wdev->conn_owner_nlportid) { | |
1164 | /* | |
1165 | * Use disconnect_bssid if still connecting and ops->disconnect | |
1166 | * not implemented. Otherwise we can use cfg80211_disconnect. | |
1167 | */ | |
1168 | if (rdev->ops->disconnect || wdev->current_bss) | |
1169 | cfg80211_disconnect(rdev, wdev->netdev, | |
1170 | WLAN_REASON_DEAUTH_LEAVING, true); | |
1171 | else | |
1172 | cfg80211_mlme_deauth(rdev, wdev->netdev, | |
1173 | wdev->disconnect_bssid, NULL, 0, | |
1174 | WLAN_REASON_DEAUTH_LEAVING, false); | |
1175 | } | |
1176 | ||
1177 | wdev_unlock(wdev); | |
1178 | } |