Commit | Line | Data |
---|---|---|
6039f6d2 JM |
1 | /* |
2 | * cfg80211 MLME SAP interface | |
3 | * | |
4 | * Copyright (c) 2009, Jouni Malinen <j@w1.fi> | |
5 | */ | |
6 | ||
7 | #include <linux/kernel.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/netdevice.h> | |
10 | #include <linux/nl80211.h> | |
5a0e3ad6 | 11 | #include <linux/slab.h> |
a9a11622 | 12 | #include <linux/wireless.h> |
6039f6d2 | 13 | #include <net/cfg80211.h> |
a9a11622 | 14 | #include <net/iw_handler.h> |
6039f6d2 JM |
15 | #include "core.h" |
16 | #include "nl80211.h" | |
17 | ||
cb0b4beb | 18 | void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len) |
6039f6d2 | 19 | { |
19957bb3 JB |
20 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
21 | struct wiphy *wiphy = wdev->wiphy; | |
6039f6d2 | 22 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
19957bb3 JB |
23 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
24 | u8 *bssid = mgmt->bssid; | |
25 | int i; | |
26 | u16 status = le16_to_cpu(mgmt->u.auth.status_code); | |
27 | bool done = false; | |
28 | ||
667503dd | 29 | wdev_lock(wdev); |
cb0b4beb | 30 | |
19957bb3 JB |
31 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
32 | if (wdev->authtry_bsses[i] && | |
33 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, | |
34 | ETH_ALEN) == 0) { | |
35 | if (status == WLAN_STATUS_SUCCESS) { | |
36 | wdev->auth_bsses[i] = wdev->authtry_bsses[i]; | |
37 | } else { | |
38 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
39 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
40 | } | |
41 | wdev->authtry_bsses[i] = NULL; | |
42 | done = true; | |
43 | break; | |
44 | } | |
45 | } | |
46 | ||
643f82e3 JB |
47 | if (done) { |
48 | nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL); | |
49 | cfg80211_sme_rx_auth(dev, buf, len); | |
50 | } | |
667503dd JB |
51 | |
52 | wdev_unlock(wdev); | |
6039f6d2 JM |
53 | } |
54 | EXPORT_SYMBOL(cfg80211_send_rx_auth); | |
55 | ||
cb0b4beb | 56 | void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len) |
6039f6d2 | 57 | { |
6829c878 JB |
58 | u16 status_code; |
59 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
60 | struct wiphy *wiphy = wdev->wiphy; | |
6039f6d2 | 61 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
6829c878 JB |
62 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
63 | u8 *ie = mgmt->u.assoc_resp.variable; | |
19957bb3 | 64 | int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); |
df7fc0f9 | 65 | struct cfg80211_internal_bss *bss = NULL; |
6829c878 | 66 | |
667503dd | 67 | wdev_lock(wdev); |
cb0b4beb | 68 | |
6829c878 JB |
69 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); |
70 | ||
f401a6f7 JB |
71 | /* |
72 | * This is a bit of a hack, we don't notify userspace of | |
73 | * a (re-)association reply if we tried to send a reassoc | |
74 | * and got a reject -- we only try again with an assoc | |
75 | * frame instead of reassoc. | |
76 | */ | |
77 | if (status_code != WLAN_STATUS_SUCCESS && wdev->conn && | |
78 | cfg80211_sme_failed_reassoc(wdev)) | |
79 | goto out; | |
80 | ||
cb0b4beb | 81 | nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL); |
6829c878 | 82 | |
19957bb3 | 83 | if (status_code == WLAN_STATUS_SUCCESS) { |
df7fc0f9 JB |
84 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
85 | if (!wdev->auth_bsses[i]) | |
86 | continue; | |
87 | if (memcmp(wdev->auth_bsses[i]->pub.bssid, mgmt->bssid, | |
88 | ETH_ALEN) == 0) { | |
89 | bss = wdev->auth_bsses[i]; | |
19957bb3 | 90 | wdev->auth_bsses[i] = NULL; |
df7fc0f9 JB |
91 | /* additional reference to drop hold */ |
92 | cfg80211_ref_bss(bss); | |
19957bb3 JB |
93 | break; |
94 | } | |
95 | } | |
96 | ||
3bdb2d48 JB |
97 | /* |
98 | * We might be coming here because the driver reported | |
99 | * a successful association at the same time as the | |
100 | * user requested a deauth. In that case, we will have | |
101 | * removed the BSS from the auth_bsses list due to the | |
102 | * deauth request when the assoc response makes it. If | |
103 | * the two code paths acquire the lock the other way | |
104 | * around, that's just the standard situation of a | |
105 | * deauth being requested while connected. | |
106 | */ | |
107 | if (!bss) | |
108 | goto out; | |
7d930bc3 JB |
109 | } else if (wdev->conn) { |
110 | cfg80211_sme_failed_assoc(wdev); | |
7d930bc3 JB |
111 | /* |
112 | * do not call connect_result() now because the | |
113 | * sme will schedule work that does it later. | |
114 | */ | |
115 | goto out; | |
df7fc0f9 JB |
116 | } |
117 | ||
ea416a79 JB |
118 | if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) { |
119 | /* | |
120 | * This is for the userspace SME, the CONNECTING | |
121 | * state will be changed to CONNECTED by | |
122 | * __cfg80211_connect_result() below. | |
123 | */ | |
124 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
125 | } | |
126 | ||
df7fc0f9 JB |
127 | /* this consumes one bss reference (unless bss is NULL) */ |
128 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, | |
129 | status_code, | |
130 | status_code == WLAN_STATUS_SUCCESS, | |
131 | bss ? &bss->pub : NULL); | |
132 | /* drop hold now, and also reference acquired above */ | |
133 | if (bss) { | |
134 | cfg80211_unhold_bss(bss); | |
135 | cfg80211_put_bss(&bss->pub); | |
19957bb3 | 136 | } |
667503dd | 137 | |
f401a6f7 | 138 | out: |
667503dd | 139 | wdev_unlock(wdev); |
6039f6d2 JM |
140 | } |
141 | EXPORT_SYMBOL(cfg80211_send_rx_assoc); | |
142 | ||
ce470613 | 143 | void __cfg80211_send_deauth(struct net_device *dev, |
667503dd | 144 | const u8 *buf, size_t len) |
6039f6d2 | 145 | { |
6829c878 JB |
146 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
147 | struct wiphy *wiphy = wdev->wiphy; | |
6039f6d2 | 148 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
6829c878 | 149 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 JB |
150 | const u8 *bssid = mgmt->bssid; |
151 | int i; | |
3f3b6a8d | 152 | bool found = false, was_current = false; |
6829c878 | 153 | |
667503dd | 154 | ASSERT_WDEV_LOCK(wdev); |
cb0b4beb | 155 | |
19957bb3 JB |
156 | if (wdev->current_bss && |
157 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { | |
19957bb3 JB |
158 | cfg80211_unhold_bss(wdev->current_bss); |
159 | cfg80211_put_bss(&wdev->current_bss->pub); | |
160 | wdev->current_bss = NULL; | |
5fba4af3 | 161 | found = true; |
3f3b6a8d | 162 | was_current = true; |
19957bb3 JB |
163 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { |
164 | if (wdev->auth_bsses[i] && | |
165 | memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { | |
166 | cfg80211_unhold_bss(wdev->auth_bsses[i]); | |
167 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); | |
168 | wdev->auth_bsses[i] = NULL; | |
5fba4af3 | 169 | found = true; |
19957bb3 JB |
170 | break; |
171 | } | |
172 | if (wdev->authtry_bsses[i] && | |
173 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { | |
174 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
175 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
176 | wdev->authtry_bsses[i] = NULL; | |
5fba4af3 | 177 | found = true; |
19957bb3 JB |
178 | break; |
179 | } | |
180 | } | |
19957bb3 | 181 | |
5fba4af3 JB |
182 | if (!found) |
183 | return; | |
184 | ||
185 | nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL); | |
186 | ||
3f3b6a8d | 187 | if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) { |
6829c878 JB |
188 | u16 reason_code; |
189 | bool from_ap; | |
190 | ||
191 | reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); | |
192 | ||
e458b8a2 | 193 | from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0; |
667503dd | 194 | __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); |
6829c878 | 195 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING) { |
667503dd JB |
196 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
197 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 198 | false, NULL); |
667503dd JB |
199 | } |
200 | } | |
ce470613 | 201 | EXPORT_SYMBOL(__cfg80211_send_deauth); |
667503dd | 202 | |
ce470613 | 203 | void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) |
667503dd JB |
204 | { |
205 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
206 | ||
ce470613 HS |
207 | wdev_lock(wdev); |
208 | __cfg80211_send_deauth(dev, buf, len); | |
209 | wdev_unlock(wdev); | |
6039f6d2 | 210 | } |
53b46b84 | 211 | EXPORT_SYMBOL(cfg80211_send_deauth); |
6039f6d2 | 212 | |
ce470613 | 213 | void __cfg80211_send_disassoc(struct net_device *dev, |
667503dd | 214 | const u8 *buf, size_t len) |
6039f6d2 | 215 | { |
6829c878 JB |
216 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
217 | struct wiphy *wiphy = wdev->wiphy; | |
6039f6d2 | 218 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
6829c878 | 219 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
19957bb3 JB |
220 | const u8 *bssid = mgmt->bssid; |
221 | int i; | |
222 | u16 reason_code; | |
223 | bool from_ap; | |
224 | bool done = false; | |
6829c878 | 225 | |
596a07c1 | 226 | ASSERT_WDEV_LOCK(wdev); |
cb0b4beb JB |
227 | |
228 | nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL); | |
a3b8b056 | 229 | |
596a07c1 JB |
230 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
231 | return; | |
6829c878 | 232 | |
19957bb3 | 233 | if (wdev->current_bss && |
b935df01 | 234 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
19957bb3 JB |
235 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
236 | if (wdev->authtry_bsses[i] || wdev->auth_bsses[i]) | |
237 | continue; | |
238 | wdev->auth_bsses[i] = wdev->current_bss; | |
239 | wdev->current_bss = NULL; | |
240 | done = true; | |
241 | cfg80211_sme_disassoc(dev, i); | |
242 | break; | |
243 | } | |
244 | WARN_ON(!done); | |
245 | } else | |
246 | WARN_ON(1); | |
6829c878 | 247 | |
6829c878 | 248 | |
19957bb3 JB |
249 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); |
250 | ||
e458b8a2 | 251 | from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0; |
667503dd | 252 | __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); |
667503dd | 253 | } |
ce470613 | 254 | EXPORT_SYMBOL(__cfg80211_send_disassoc); |
667503dd | 255 | |
ce470613 | 256 | void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) |
667503dd JB |
257 | { |
258 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
259 | ||
ce470613 HS |
260 | wdev_lock(wdev); |
261 | __cfg80211_send_disassoc(dev, buf, len); | |
262 | wdev_unlock(wdev); | |
1965c853 | 263 | } |
6829c878 | 264 | EXPORT_SYMBOL(cfg80211_send_disassoc); |
1965c853 | 265 | |
cf4e594e JM |
266 | void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, |
267 | size_t len) | |
268 | { | |
269 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
270 | struct wiphy *wiphy = wdev->wiphy; | |
271 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
272 | ||
273 | nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC); | |
274 | } | |
275 | EXPORT_SYMBOL(cfg80211_send_unprot_deauth); | |
276 | ||
277 | void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, | |
278 | size_t len) | |
279 | { | |
280 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
281 | struct wiphy *wiphy = wdev->wiphy; | |
282 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
283 | ||
284 | nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC); | |
285 | } | |
286 | EXPORT_SYMBOL(cfg80211_send_unprot_disassoc); | |
287 | ||
a58ce43f | 288 | static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr) |
1965c853 | 289 | { |
19957bb3 JB |
290 | int i; |
291 | bool done = false; | |
292 | ||
a58ce43f | 293 | ASSERT_WDEV_LOCK(wdev); |
19957bb3 JB |
294 | |
295 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { | |
296 | if (wdev->authtry_bsses[i] && | |
297 | memcmp(wdev->authtry_bsses[i]->pub.bssid, | |
298 | addr, ETH_ALEN) == 0) { | |
299 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
300 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
301 | wdev->authtry_bsses[i] = NULL; | |
302 | done = true; | |
303 | break; | |
304 | } | |
305 | } | |
306 | ||
307 | WARN_ON(!done); | |
a58ce43f JB |
308 | } |
309 | ||
310 | void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr) | |
311 | { | |
312 | __cfg80211_auth_remove(dev->ieee80211_ptr, addr); | |
313 | } | |
314 | EXPORT_SYMBOL(__cfg80211_auth_canceled); | |
315 | ||
316 | void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) | |
317 | { | |
318 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
319 | struct wiphy *wiphy = wdev->wiphy; | |
320 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
321 | ||
322 | wdev_lock(wdev); | |
323 | ||
324 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); | |
325 | if (wdev->sme_state == CFG80211_SME_CONNECTING) | |
326 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, | |
327 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
328 | false, NULL); | |
329 | ||
330 | __cfg80211_auth_remove(wdev, addr); | |
667503dd JB |
331 | |
332 | wdev_unlock(wdev); | |
1965c853 JM |
333 | } |
334 | EXPORT_SYMBOL(cfg80211_send_auth_timeout); | |
335 | ||
cb0b4beb | 336 | void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) |
1965c853 | 337 | { |
6829c878 JB |
338 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
339 | struct wiphy *wiphy = wdev->wiphy; | |
1965c853 | 340 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
19957bb3 JB |
341 | int i; |
342 | bool done = false; | |
343 | ||
667503dd | 344 | wdev_lock(wdev); |
cb0b4beb JB |
345 | |
346 | nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL); | |
6829c878 | 347 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
667503dd JB |
348 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
349 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 350 | false, NULL); |
19957bb3 JB |
351 | |
352 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { | |
353 | if (wdev->auth_bsses[i] && | |
354 | memcmp(wdev->auth_bsses[i]->pub.bssid, | |
355 | addr, ETH_ALEN) == 0) { | |
356 | cfg80211_unhold_bss(wdev->auth_bsses[i]); | |
357 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); | |
358 | wdev->auth_bsses[i] = NULL; | |
359 | done = true; | |
360 | break; | |
361 | } | |
362 | } | |
363 | ||
364 | WARN_ON(!done); | |
667503dd JB |
365 | |
366 | wdev_unlock(wdev); | |
1965c853 JM |
367 | } |
368 | EXPORT_SYMBOL(cfg80211_send_assoc_timeout); | |
369 | ||
a3b8b056 JM |
370 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
371 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 372 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
373 | { |
374 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
375 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3d23e349 | 376 | #ifdef CONFIG_CFG80211_WEXT |
f58d4ed9 | 377 | union iwreq_data wrqu; |
e6d6e342 | 378 | char *buf = kmalloc(128, gfp); |
f58d4ed9 JB |
379 | |
380 | if (buf) { | |
381 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" | |
382 | "keyid=%d %scast addr=%pM)", key_id, | |
383 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", | |
384 | addr); | |
385 | memset(&wrqu, 0, sizeof(wrqu)); | |
386 | wrqu.data.length = strlen(buf); | |
387 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); | |
388 | kfree(buf); | |
389 | } | |
390 | #endif | |
391 | ||
e6d6e342 | 392 | nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp); |
a3b8b056 JM |
393 | } |
394 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); | |
19957bb3 JB |
395 | |
396 | /* some MLME handling for userspace SME */ | |
667503dd JB |
397 | int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
398 | struct net_device *dev, | |
399 | struct ieee80211_channel *chan, | |
400 | enum nl80211_auth_type auth_type, | |
401 | const u8 *bssid, | |
402 | const u8 *ssid, int ssid_len, | |
fffd0934 | 403 | const u8 *ie, int ie_len, |
d5cdfacb JM |
404 | const u8 *key, int key_len, int key_idx, |
405 | bool local_state_change) | |
19957bb3 JB |
406 | { |
407 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
408 | struct cfg80211_auth_request req; | |
409 | struct cfg80211_internal_bss *bss; | |
410 | int i, err, slot = -1, nfree = 0; | |
411 | ||
667503dd JB |
412 | ASSERT_WDEV_LOCK(wdev); |
413 | ||
fffd0934 JB |
414 | if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
415 | if (!key || !key_len || key_idx < 0 || key_idx > 4) | |
416 | return -EINVAL; | |
417 | ||
0a9b5e17 JB |
418 | if (wdev->current_bss && |
419 | memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0) | |
420 | return -EALREADY; | |
421 | ||
422 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
423 | if (wdev->authtry_bsses[i] && | |
424 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, | |
425 | ETH_ALEN) == 0) | |
426 | return -EALREADY; | |
427 | if (wdev->auth_bsses[i] && | |
428 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, | |
429 | ETH_ALEN) == 0) | |
430 | return -EALREADY; | |
431 | } | |
432 | ||
19957bb3 JB |
433 | memset(&req, 0, sizeof(req)); |
434 | ||
d5cdfacb | 435 | req.local_state_change = local_state_change; |
19957bb3 JB |
436 | req.ie = ie; |
437 | req.ie_len = ie_len; | |
438 | req.auth_type = auth_type; | |
439 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, | |
440 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
441 | req.key = key; |
442 | req.key_len = key_len; | |
443 | req.key_idx = key_idx; | |
19957bb3 JB |
444 | if (!req.bss) |
445 | return -ENOENT; | |
446 | ||
447 | bss = bss_from_pub(req.bss); | |
448 | ||
19957bb3 JB |
449 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
450 | if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) { | |
451 | slot = i; | |
452 | nfree++; | |
453 | } | |
454 | } | |
455 | ||
456 | /* we need one free slot for disassoc and one for this auth */ | |
457 | if (nfree < 2) { | |
458 | err = -ENOSPC; | |
459 | goto out; | |
460 | } | |
461 | ||
d5cdfacb JM |
462 | if (local_state_change) |
463 | wdev->auth_bsses[slot] = bss; | |
464 | else | |
465 | wdev->authtry_bsses[slot] = bss; | |
19957bb3 JB |
466 | cfg80211_hold_bss(bss); |
467 | ||
468 | err = rdev->ops->auth(&rdev->wiphy, dev, &req); | |
469 | if (err) { | |
d5cdfacb JM |
470 | if (local_state_change) |
471 | wdev->auth_bsses[slot] = NULL; | |
472 | else | |
473 | wdev->authtry_bsses[slot] = NULL; | |
19957bb3 JB |
474 | cfg80211_unhold_bss(bss); |
475 | } | |
476 | ||
477 | out: | |
478 | if (err) | |
479 | cfg80211_put_bss(req.bss); | |
480 | return err; | |
481 | } | |
482 | ||
667503dd JB |
483 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
484 | struct net_device *dev, struct ieee80211_channel *chan, | |
485 | enum nl80211_auth_type auth_type, const u8 *bssid, | |
486 | const u8 *ssid, int ssid_len, | |
fffd0934 | 487 | const u8 *ie, int ie_len, |
d5cdfacb JM |
488 | const u8 *key, int key_len, int key_idx, |
489 | bool local_state_change) | |
667503dd JB |
490 | { |
491 | int err; | |
492 | ||
493 | wdev_lock(dev->ieee80211_ptr); | |
494 | err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
fffd0934 | 495 | ssid, ssid_len, ie, ie_len, |
d5cdfacb | 496 | key, key_len, key_idx, local_state_change); |
667503dd JB |
497 | wdev_unlock(dev->ieee80211_ptr); |
498 | ||
499 | return err; | |
500 | } | |
501 | ||
502 | int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, | |
503 | struct net_device *dev, | |
504 | struct ieee80211_channel *chan, | |
505 | const u8 *bssid, const u8 *prev_bssid, | |
506 | const u8 *ssid, int ssid_len, | |
507 | const u8 *ie, int ie_len, bool use_mfp, | |
508 | struct cfg80211_crypto_settings *crypt) | |
19957bb3 JB |
509 | { |
510 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
511 | struct cfg80211_assoc_request req; | |
512 | struct cfg80211_internal_bss *bss; | |
513 | int i, err, slot = -1; | |
24b6b15f | 514 | bool was_connected = false; |
19957bb3 | 515 | |
667503dd JB |
516 | ASSERT_WDEV_LOCK(wdev); |
517 | ||
19957bb3 JB |
518 | memset(&req, 0, sizeof(req)); |
519 | ||
24b6b15f JM |
520 | if (wdev->current_bss && prev_bssid && |
521 | memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) { | |
522 | /* | |
523 | * Trying to reassociate: Allow this to proceed and let the old | |
524 | * association to be dropped when the new one is completed. | |
525 | */ | |
526 | if (wdev->sme_state == CFG80211_SME_CONNECTED) { | |
527 | was_connected = true; | |
528 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
529 | } | |
530 | } else if (wdev->current_bss) | |
19957bb3 JB |
531 | return -EALREADY; |
532 | ||
533 | req.ie = ie; | |
534 | req.ie_len = ie_len; | |
535 | memcpy(&req.crypto, crypt, sizeof(req.crypto)); | |
536 | req.use_mfp = use_mfp; | |
3e5d7649 | 537 | req.prev_bssid = prev_bssid; |
19957bb3 JB |
538 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
539 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
24b6b15f JM |
540 | if (!req.bss) { |
541 | if (was_connected) | |
542 | wdev->sme_state = CFG80211_SME_CONNECTED; | |
19957bb3 | 543 | return -ENOENT; |
24b6b15f | 544 | } |
19957bb3 JB |
545 | |
546 | bss = bss_from_pub(req.bss); | |
547 | ||
548 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
549 | if (bss == wdev->auth_bsses[i]) { | |
550 | slot = i; | |
551 | break; | |
552 | } | |
553 | } | |
554 | ||
555 | if (slot < 0) { | |
556 | err = -ENOTCONN; | |
557 | goto out; | |
558 | } | |
559 | ||
560 | err = rdev->ops->assoc(&rdev->wiphy, dev, &req); | |
561 | out: | |
24b6b15f JM |
562 | if (err && was_connected) |
563 | wdev->sme_state = CFG80211_SME_CONNECTED; | |
19957bb3 JB |
564 | /* still a reference in wdev->auth_bsses[slot] */ |
565 | cfg80211_put_bss(req.bss); | |
566 | return err; | |
567 | } | |
568 | ||
667503dd JB |
569 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
570 | struct net_device *dev, | |
571 | struct ieee80211_channel *chan, | |
572 | const u8 *bssid, const u8 *prev_bssid, | |
573 | const u8 *ssid, int ssid_len, | |
574 | const u8 *ie, int ie_len, bool use_mfp, | |
575 | struct cfg80211_crypto_settings *crypt) | |
576 | { | |
577 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
578 | int err; | |
579 | ||
580 | wdev_lock(wdev); | |
581 | err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, | |
582 | ssid, ssid_len, ie, ie_len, use_mfp, crypt); | |
583 | wdev_unlock(wdev); | |
584 | ||
585 | return err; | |
586 | } | |
587 | ||
588 | int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, | |
589 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
590 | const u8 *ie, int ie_len, u16 reason, |
591 | bool local_state_change) | |
19957bb3 JB |
592 | { |
593 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
594 | struct cfg80211_deauth_request req; | |
595 | int i; | |
596 | ||
667503dd JB |
597 | ASSERT_WDEV_LOCK(wdev); |
598 | ||
19957bb3 JB |
599 | memset(&req, 0, sizeof(req)); |
600 | req.reason_code = reason; | |
d5cdfacb | 601 | req.local_state_change = local_state_change; |
19957bb3 JB |
602 | req.ie = ie; |
603 | req.ie_len = ie_len; | |
604 | if (wdev->current_bss && | |
605 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { | |
606 | req.bss = &wdev->current_bss->pub; | |
607 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
608 | if (wdev->auth_bsses[i] && | |
609 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) { | |
610 | req.bss = &wdev->auth_bsses[i]->pub; | |
611 | break; | |
612 | } | |
613 | if (wdev->authtry_bsses[i] && | |
614 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) { | |
615 | req.bss = &wdev->authtry_bsses[i]->pub; | |
616 | break; | |
617 | } | |
618 | } | |
619 | ||
620 | if (!req.bss) | |
621 | return -ENOTCONN; | |
622 | ||
667503dd | 623 | return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
624 | } |
625 | ||
667503dd JB |
626 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
627 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
628 | const u8 *ie, int ie_len, u16 reason, |
629 | bool local_state_change) | |
667503dd JB |
630 | { |
631 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
632 | int err; | |
633 | ||
634 | wdev_lock(wdev); | |
d5cdfacb JM |
635 | err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason, |
636 | local_state_change); | |
667503dd JB |
637 | wdev_unlock(wdev); |
638 | ||
639 | return err; | |
640 | } | |
641 | ||
642 | static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, | |
643 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
644 | const u8 *ie, int ie_len, u16 reason, |
645 | bool local_state_change) | |
19957bb3 JB |
646 | { |
647 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
648 | struct cfg80211_disassoc_request req; | |
649 | ||
667503dd JB |
650 | ASSERT_WDEV_LOCK(wdev); |
651 | ||
f9d6b402 JB |
652 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
653 | return -ENOTCONN; | |
654 | ||
655 | if (WARN_ON(!wdev->current_bss)) | |
656 | return -ENOTCONN; | |
657 | ||
19957bb3 JB |
658 | memset(&req, 0, sizeof(req)); |
659 | req.reason_code = reason; | |
d5cdfacb | 660 | req.local_state_change = local_state_change; |
19957bb3 JB |
661 | req.ie = ie; |
662 | req.ie_len = ie_len; | |
663 | if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) | |
664 | req.bss = &wdev->current_bss->pub; | |
665 | else | |
666 | return -ENOTCONN; | |
667 | ||
667503dd JB |
668 | return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev); |
669 | } | |
670 | ||
671 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, | |
672 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
673 | const u8 *ie, int ie_len, u16 reason, |
674 | bool local_state_change) | |
667503dd JB |
675 | { |
676 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
677 | int err; | |
678 | ||
679 | wdev_lock(wdev); | |
d5cdfacb JM |
680 | err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason, |
681 | local_state_change); | |
667503dd JB |
682 | wdev_unlock(wdev); |
683 | ||
684 | return err; | |
19957bb3 JB |
685 | } |
686 | ||
687 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, | |
688 | struct net_device *dev) | |
689 | { | |
690 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
691 | struct cfg80211_deauth_request req; | |
692 | int i; | |
693 | ||
667503dd JB |
694 | ASSERT_WDEV_LOCK(wdev); |
695 | ||
19957bb3 JB |
696 | if (!rdev->ops->deauth) |
697 | return; | |
698 | ||
699 | memset(&req, 0, sizeof(req)); | |
700 | req.reason_code = WLAN_REASON_DEAUTH_LEAVING; | |
701 | req.ie = NULL; | |
702 | req.ie_len = 0; | |
703 | ||
704 | if (wdev->current_bss) { | |
705 | req.bss = &wdev->current_bss->pub; | |
667503dd | 706 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
707 | if (wdev->current_bss) { |
708 | cfg80211_unhold_bss(wdev->current_bss); | |
709 | cfg80211_put_bss(&wdev->current_bss->pub); | |
710 | wdev->current_bss = NULL; | |
711 | } | |
712 | } | |
713 | ||
714 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
715 | if (wdev->auth_bsses[i]) { | |
716 | req.bss = &wdev->auth_bsses[i]->pub; | |
667503dd | 717 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
718 | if (wdev->auth_bsses[i]) { |
719 | cfg80211_unhold_bss(wdev->auth_bsses[i]); | |
720 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); | |
721 | wdev->auth_bsses[i] = NULL; | |
722 | } | |
723 | } | |
724 | if (wdev->authtry_bsses[i]) { | |
725 | req.bss = &wdev->authtry_bsses[i]->pub; | |
667503dd | 726 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
727 | if (wdev->authtry_bsses[i]) { |
728 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
729 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
730 | wdev->authtry_bsses[i] = NULL; | |
731 | } | |
732 | } | |
733 | } | |
734 | } | |
9588bbd5 JM |
735 | |
736 | void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, | |
737 | struct ieee80211_channel *chan, | |
738 | enum nl80211_channel_type channel_type, | |
739 | unsigned int duration, gfp_t gfp) | |
740 | { | |
741 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
742 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
743 | ||
744 | nl80211_send_remain_on_channel(rdev, dev, cookie, chan, channel_type, | |
745 | duration, gfp); | |
746 | } | |
747 | EXPORT_SYMBOL(cfg80211_ready_on_channel); | |
748 | ||
749 | void cfg80211_remain_on_channel_expired(struct net_device *dev, | |
750 | u64 cookie, | |
751 | struct ieee80211_channel *chan, | |
752 | enum nl80211_channel_type channel_type, | |
753 | gfp_t gfp) | |
754 | { | |
755 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
756 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
757 | ||
758 | nl80211_send_remain_on_channel_cancel(rdev, dev, cookie, chan, | |
759 | channel_type, gfp); | |
760 | } | |
761 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); | |
98b62183 JB |
762 | |
763 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, | |
764 | struct station_info *sinfo, gfp_t gfp) | |
765 | { | |
766 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
767 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
768 | ||
769 | nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp); | |
770 | } | |
771 | EXPORT_SYMBOL(cfg80211_new_sta); | |
026331c4 | 772 | |
ec15e68b JM |
773 | void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) |
774 | { | |
775 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
776 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
777 | ||
778 | nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp); | |
779 | } | |
780 | EXPORT_SYMBOL(cfg80211_del_sta); | |
781 | ||
2e161f78 | 782 | struct cfg80211_mgmt_registration { |
026331c4 JM |
783 | struct list_head list; |
784 | ||
785 | u32 nlpid; | |
786 | ||
787 | int match_len; | |
788 | ||
2e161f78 JB |
789 | __le16 frame_type; |
790 | ||
026331c4 JM |
791 | u8 match[]; |
792 | }; | |
793 | ||
2e161f78 JB |
794 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, |
795 | u16 frame_type, const u8 *match_data, | |
796 | int match_len) | |
026331c4 | 797 | { |
271733cf JB |
798 | struct wiphy *wiphy = wdev->wiphy; |
799 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 | 800 | struct cfg80211_mgmt_registration *reg, *nreg; |
026331c4 | 801 | int err = 0; |
2e161f78 JB |
802 | u16 mgmt_type; |
803 | ||
804 | if (!wdev->wiphy->mgmt_stypes) | |
805 | return -EOPNOTSUPP; | |
806 | ||
807 | if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) | |
808 | return -EINVAL; | |
809 | ||
810 | if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) | |
811 | return -EINVAL; | |
812 | ||
813 | mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; | |
814 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) | |
815 | return -EINVAL; | |
026331c4 JM |
816 | |
817 | nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); | |
818 | if (!nreg) | |
819 | return -ENOMEM; | |
820 | ||
2e161f78 | 821 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 822 | |
2e161f78 | 823 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
026331c4 JM |
824 | int mlen = min(match_len, reg->match_len); |
825 | ||
2e161f78 JB |
826 | if (frame_type != le16_to_cpu(reg->frame_type)) |
827 | continue; | |
828 | ||
026331c4 JM |
829 | if (memcmp(reg->match, match_data, mlen) == 0) { |
830 | err = -EALREADY; | |
831 | break; | |
832 | } | |
833 | } | |
834 | ||
835 | if (err) { | |
836 | kfree(nreg); | |
837 | goto out; | |
838 | } | |
839 | ||
840 | memcpy(nreg->match, match_data, match_len); | |
841 | nreg->match_len = match_len; | |
842 | nreg->nlpid = snd_pid; | |
2e161f78 JB |
843 | nreg->frame_type = cpu_to_le16(frame_type); |
844 | list_add(&nreg->list, &wdev->mgmt_registrations); | |
026331c4 | 845 | |
271733cf JB |
846 | if (rdev->ops->mgmt_frame_register) |
847 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, | |
848 | frame_type, true); | |
849 | ||
026331c4 | 850 | out: |
2e161f78 | 851 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
271733cf | 852 | |
026331c4 JM |
853 | return err; |
854 | } | |
855 | ||
2e161f78 | 856 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid) |
026331c4 | 857 | { |
271733cf JB |
858 | struct wiphy *wiphy = wdev->wiphy; |
859 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 | 860 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 861 | |
2e161f78 | 862 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 863 | |
2e161f78 | 864 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
271733cf JB |
865 | if (reg->nlpid != nlpid) |
866 | continue; | |
867 | ||
868 | if (rdev->ops->mgmt_frame_register) { | |
869 | u16 frame_type = le16_to_cpu(reg->frame_type); | |
870 | ||
871 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, | |
872 | frame_type, false); | |
026331c4 | 873 | } |
271733cf JB |
874 | |
875 | list_del(®->list); | |
876 | kfree(reg); | |
026331c4 JM |
877 | } |
878 | ||
2e161f78 | 879 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
880 | } |
881 | ||
2e161f78 | 882 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) |
026331c4 | 883 | { |
2e161f78 | 884 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 885 | |
2e161f78 | 886 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 887 | |
2e161f78 | 888 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
026331c4 JM |
889 | list_del(®->list); |
890 | kfree(reg); | |
891 | } | |
892 | ||
2e161f78 | 893 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
894 | } |
895 | ||
2e161f78 JB |
896 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, |
897 | struct net_device *dev, | |
f7ca38df | 898 | struct ieee80211_channel *chan, bool offchan, |
2e161f78 | 899 | enum nl80211_channel_type channel_type, |
f7ca38df | 900 | bool channel_type_valid, unsigned int wait, |
2e161f78 | 901 | const u8 *buf, size_t len, u64 *cookie) |
026331c4 JM |
902 | { |
903 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
904 | const struct ieee80211_mgmt *mgmt; | |
2e161f78 JB |
905 | u16 stype; |
906 | ||
907 | if (!wdev->wiphy->mgmt_stypes) | |
908 | return -EOPNOTSUPP; | |
026331c4 | 909 | |
2e161f78 | 910 | if (!rdev->ops->mgmt_tx) |
026331c4 | 911 | return -EOPNOTSUPP; |
2e161f78 | 912 | |
026331c4 JM |
913 | if (len < 24 + 1) |
914 | return -EINVAL; | |
915 | ||
916 | mgmt = (const struct ieee80211_mgmt *) buf; | |
2e161f78 JB |
917 | |
918 | if (!ieee80211_is_mgmt(mgmt->frame_control)) | |
026331c4 | 919 | return -EINVAL; |
2e161f78 JB |
920 | |
921 | stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; | |
922 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) | |
923 | return -EINVAL; | |
924 | ||
925 | if (ieee80211_is_action(mgmt->frame_control) && | |
926 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { | |
663fcafd JB |
927 | int err = 0; |
928 | ||
fe100acd JB |
929 | wdev_lock(wdev); |
930 | ||
663fcafd JB |
931 | switch (wdev->iftype) { |
932 | case NL80211_IFTYPE_ADHOC: | |
933 | case NL80211_IFTYPE_STATION: | |
934 | case NL80211_IFTYPE_P2P_CLIENT: | |
935 | if (!wdev->current_bss) { | |
936 | err = -ENOTCONN; | |
937 | break; | |
938 | } | |
939 | ||
940 | if (memcmp(wdev->current_bss->pub.bssid, | |
941 | mgmt->bssid, ETH_ALEN)) { | |
942 | err = -ENOTCONN; | |
943 | break; | |
944 | } | |
945 | ||
946 | /* | |
947 | * check for IBSS DA must be done by driver as | |
948 | * cfg80211 doesn't track the stations | |
949 | */ | |
950 | if (wdev->iftype == NL80211_IFTYPE_ADHOC) | |
951 | break; | |
fe100acd | 952 | |
663fcafd JB |
953 | /* for station, check that DA is the AP */ |
954 | if (memcmp(wdev->current_bss->pub.bssid, | |
955 | mgmt->da, ETH_ALEN)) { | |
956 | err = -ENOTCONN; | |
957 | break; | |
958 | } | |
959 | break; | |
960 | case NL80211_IFTYPE_AP: | |
961 | case NL80211_IFTYPE_P2P_GO: | |
962 | case NL80211_IFTYPE_AP_VLAN: | |
963 | if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN)) | |
964 | err = -EINVAL; | |
965 | break; | |
966 | default: | |
967 | err = -EOPNOTSUPP; | |
968 | break; | |
969 | } | |
fe100acd | 970 | wdev_unlock(wdev); |
663fcafd JB |
971 | |
972 | if (err) | |
973 | return err; | |
026331c4 JM |
974 | } |
975 | ||
976 | if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0) | |
977 | return -EINVAL; | |
978 | ||
979 | /* Transmit the Action frame as requested by user space */ | |
f7ca38df JB |
980 | return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, offchan, |
981 | channel_type, channel_type_valid, | |
982 | wait, buf, len, cookie); | |
026331c4 JM |
983 | } |
984 | ||
2e161f78 JB |
985 | bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, |
986 | size_t len, gfp_t gfp) | |
026331c4 JM |
987 | { |
988 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
989 | struct wiphy *wiphy = wdev->wiphy; | |
990 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 JB |
991 | struct cfg80211_mgmt_registration *reg; |
992 | const struct ieee80211_txrx_stypes *stypes = | |
993 | &wiphy->mgmt_stypes[wdev->iftype]; | |
994 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
995 | const u8 *data; | |
996 | int data_len; | |
026331c4 | 997 | bool result = false; |
2e161f78 JB |
998 | __le16 ftype = mgmt->frame_control & |
999 | cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); | |
1000 | u16 stype; | |
026331c4 | 1001 | |
2e161f78 | 1002 | stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; |
026331c4 | 1003 | |
2e161f78 JB |
1004 | if (!(stypes->rx & BIT(stype))) |
1005 | return false; | |
026331c4 | 1006 | |
2e161f78 JB |
1007 | data = buf + ieee80211_hdrlen(mgmt->frame_control); |
1008 | data_len = len - ieee80211_hdrlen(mgmt->frame_control); | |
1009 | ||
1010 | spin_lock_bh(&wdev->mgmt_registrations_lock); | |
1011 | ||
1012 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { | |
1013 | if (reg->frame_type != ftype) | |
1014 | continue; | |
026331c4 | 1015 | |
2e161f78 | 1016 | if (reg->match_len > data_len) |
026331c4 JM |
1017 | continue; |
1018 | ||
2e161f78 | 1019 | if (memcmp(reg->match, data, reg->match_len)) |
026331c4 JM |
1020 | continue; |
1021 | ||
1022 | /* found match! */ | |
1023 | ||
1024 | /* Indicate the received Action frame to user space */ | |
2e161f78 JB |
1025 | if (nl80211_send_mgmt(rdev, dev, reg->nlpid, freq, |
1026 | buf, len, gfp)) | |
026331c4 JM |
1027 | continue; |
1028 | ||
1029 | result = true; | |
1030 | break; | |
1031 | } | |
1032 | ||
2e161f78 | 1033 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
1034 | |
1035 | return result; | |
1036 | } | |
2e161f78 | 1037 | EXPORT_SYMBOL(cfg80211_rx_mgmt); |
026331c4 | 1038 | |
2e161f78 JB |
1039 | void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, |
1040 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
026331c4 JM |
1041 | { |
1042 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1043 | struct wiphy *wiphy = wdev->wiphy; | |
1044 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
1045 | ||
1046 | /* Indicate TX status of the Action frame to user space */ | |
2e161f78 | 1047 | nl80211_send_mgmt_tx_status(rdev, dev, cookie, buf, len, ack, gfp); |
026331c4 | 1048 | } |
2e161f78 | 1049 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
d6dc1a38 JO |
1050 | |
1051 | void cfg80211_cqm_rssi_notify(struct net_device *dev, | |
1052 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
1053 | gfp_t gfp) | |
1054 | { | |
1055 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1056 | struct wiphy *wiphy = wdev->wiphy; | |
1057 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
1058 | ||
1059 | /* Indicate roaming trigger event to user space */ | |
1060 | nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp); | |
1061 | } | |
1062 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); | |
c063dbf5 JB |
1063 | |
1064 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, | |
1065 | const u8 *peer, u32 num_packets, gfp_t gfp) | |
1066 | { | |
1067 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1068 | struct wiphy *wiphy = wdev->wiphy; | |
1069 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
1070 | ||
1071 | /* Indicate roaming trigger event to user space */ | |
1072 | nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp); | |
1073 | } | |
1074 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); |