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 | |
a58ce43f | 266 | static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr) |
1965c853 | 267 | { |
19957bb3 JB |
268 | int i; |
269 | bool done = false; | |
270 | ||
a58ce43f | 271 | ASSERT_WDEV_LOCK(wdev); |
19957bb3 JB |
272 | |
273 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { | |
274 | if (wdev->authtry_bsses[i] && | |
275 | memcmp(wdev->authtry_bsses[i]->pub.bssid, | |
276 | addr, ETH_ALEN) == 0) { | |
277 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
278 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
279 | wdev->authtry_bsses[i] = NULL; | |
280 | done = true; | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
285 | WARN_ON(!done); | |
a58ce43f JB |
286 | } |
287 | ||
288 | void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr) | |
289 | { | |
290 | __cfg80211_auth_remove(dev->ieee80211_ptr, addr); | |
291 | } | |
292 | EXPORT_SYMBOL(__cfg80211_auth_canceled); | |
293 | ||
294 | void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) | |
295 | { | |
296 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
297 | struct wiphy *wiphy = wdev->wiphy; | |
298 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
299 | ||
300 | wdev_lock(wdev); | |
301 | ||
302 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); | |
303 | if (wdev->sme_state == CFG80211_SME_CONNECTING) | |
304 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, | |
305 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
306 | false, NULL); | |
307 | ||
308 | __cfg80211_auth_remove(wdev, addr); | |
667503dd JB |
309 | |
310 | wdev_unlock(wdev); | |
1965c853 JM |
311 | } |
312 | EXPORT_SYMBOL(cfg80211_send_auth_timeout); | |
313 | ||
cb0b4beb | 314 | void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) |
1965c853 | 315 | { |
6829c878 JB |
316 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
317 | struct wiphy *wiphy = wdev->wiphy; | |
1965c853 | 318 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
19957bb3 JB |
319 | int i; |
320 | bool done = false; | |
321 | ||
667503dd | 322 | wdev_lock(wdev); |
cb0b4beb JB |
323 | |
324 | nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL); | |
6829c878 | 325 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
667503dd JB |
326 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
327 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
df7fc0f9 | 328 | false, NULL); |
19957bb3 JB |
329 | |
330 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { | |
331 | if (wdev->auth_bsses[i] && | |
332 | memcmp(wdev->auth_bsses[i]->pub.bssid, | |
333 | addr, ETH_ALEN) == 0) { | |
334 | cfg80211_unhold_bss(wdev->auth_bsses[i]); | |
335 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); | |
336 | wdev->auth_bsses[i] = NULL; | |
337 | done = true; | |
338 | break; | |
339 | } | |
340 | } | |
341 | ||
342 | WARN_ON(!done); | |
667503dd JB |
343 | |
344 | wdev_unlock(wdev); | |
1965c853 JM |
345 | } |
346 | EXPORT_SYMBOL(cfg80211_send_assoc_timeout); | |
347 | ||
a3b8b056 JM |
348 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
349 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 350 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
351 | { |
352 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
353 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3d23e349 | 354 | #ifdef CONFIG_CFG80211_WEXT |
f58d4ed9 | 355 | union iwreq_data wrqu; |
e6d6e342 | 356 | char *buf = kmalloc(128, gfp); |
f58d4ed9 JB |
357 | |
358 | if (buf) { | |
359 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" | |
360 | "keyid=%d %scast addr=%pM)", key_id, | |
361 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", | |
362 | addr); | |
363 | memset(&wrqu, 0, sizeof(wrqu)); | |
364 | wrqu.data.length = strlen(buf); | |
365 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); | |
366 | kfree(buf); | |
367 | } | |
368 | #endif | |
369 | ||
e6d6e342 | 370 | nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp); |
a3b8b056 JM |
371 | } |
372 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); | |
19957bb3 JB |
373 | |
374 | /* some MLME handling for userspace SME */ | |
667503dd JB |
375 | int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
376 | struct net_device *dev, | |
377 | struct ieee80211_channel *chan, | |
378 | enum nl80211_auth_type auth_type, | |
379 | const u8 *bssid, | |
380 | const u8 *ssid, int ssid_len, | |
fffd0934 | 381 | const u8 *ie, int ie_len, |
d5cdfacb JM |
382 | const u8 *key, int key_len, int key_idx, |
383 | bool local_state_change) | |
19957bb3 JB |
384 | { |
385 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
386 | struct cfg80211_auth_request req; | |
387 | struct cfg80211_internal_bss *bss; | |
388 | int i, err, slot = -1, nfree = 0; | |
389 | ||
667503dd JB |
390 | ASSERT_WDEV_LOCK(wdev); |
391 | ||
fffd0934 JB |
392 | if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
393 | if (!key || !key_len || key_idx < 0 || key_idx > 4) | |
394 | return -EINVAL; | |
395 | ||
0a9b5e17 JB |
396 | if (wdev->current_bss && |
397 | memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0) | |
398 | return -EALREADY; | |
399 | ||
400 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
401 | if (wdev->authtry_bsses[i] && | |
402 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, | |
403 | ETH_ALEN) == 0) | |
404 | return -EALREADY; | |
405 | if (wdev->auth_bsses[i] && | |
406 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, | |
407 | ETH_ALEN) == 0) | |
408 | return -EALREADY; | |
409 | } | |
410 | ||
19957bb3 JB |
411 | memset(&req, 0, sizeof(req)); |
412 | ||
d5cdfacb | 413 | req.local_state_change = local_state_change; |
19957bb3 JB |
414 | req.ie = ie; |
415 | req.ie_len = ie_len; | |
416 | req.auth_type = auth_type; | |
417 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, | |
418 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
fffd0934 JB |
419 | req.key = key; |
420 | req.key_len = key_len; | |
421 | req.key_idx = key_idx; | |
19957bb3 JB |
422 | if (!req.bss) |
423 | return -ENOENT; | |
424 | ||
425 | bss = bss_from_pub(req.bss); | |
426 | ||
19957bb3 JB |
427 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
428 | if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) { | |
429 | slot = i; | |
430 | nfree++; | |
431 | } | |
432 | } | |
433 | ||
434 | /* we need one free slot for disassoc and one for this auth */ | |
435 | if (nfree < 2) { | |
436 | err = -ENOSPC; | |
437 | goto out; | |
438 | } | |
439 | ||
d5cdfacb JM |
440 | if (local_state_change) |
441 | wdev->auth_bsses[slot] = bss; | |
442 | else | |
443 | wdev->authtry_bsses[slot] = bss; | |
19957bb3 JB |
444 | cfg80211_hold_bss(bss); |
445 | ||
446 | err = rdev->ops->auth(&rdev->wiphy, dev, &req); | |
447 | if (err) { | |
d5cdfacb JM |
448 | if (local_state_change) |
449 | wdev->auth_bsses[slot] = NULL; | |
450 | else | |
451 | wdev->authtry_bsses[slot] = NULL; | |
19957bb3 JB |
452 | cfg80211_unhold_bss(bss); |
453 | } | |
454 | ||
455 | out: | |
456 | if (err) | |
457 | cfg80211_put_bss(req.bss); | |
458 | return err; | |
459 | } | |
460 | ||
667503dd JB |
461 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
462 | struct net_device *dev, struct ieee80211_channel *chan, | |
463 | enum nl80211_auth_type auth_type, const u8 *bssid, | |
464 | const u8 *ssid, int ssid_len, | |
fffd0934 | 465 | const u8 *ie, int ie_len, |
d5cdfacb JM |
466 | const u8 *key, int key_len, int key_idx, |
467 | bool local_state_change) | |
667503dd JB |
468 | { |
469 | int err; | |
470 | ||
471 | wdev_lock(dev->ieee80211_ptr); | |
472 | err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
fffd0934 | 473 | ssid, ssid_len, ie, ie_len, |
d5cdfacb | 474 | key, key_len, key_idx, local_state_change); |
667503dd JB |
475 | wdev_unlock(dev->ieee80211_ptr); |
476 | ||
477 | return err; | |
478 | } | |
479 | ||
480 | int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, | |
481 | struct net_device *dev, | |
482 | struct ieee80211_channel *chan, | |
483 | const u8 *bssid, const u8 *prev_bssid, | |
484 | const u8 *ssid, int ssid_len, | |
485 | const u8 *ie, int ie_len, bool use_mfp, | |
486 | struct cfg80211_crypto_settings *crypt) | |
19957bb3 JB |
487 | { |
488 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
489 | struct cfg80211_assoc_request req; | |
490 | struct cfg80211_internal_bss *bss; | |
491 | int i, err, slot = -1; | |
24b6b15f | 492 | bool was_connected = false; |
19957bb3 | 493 | |
667503dd JB |
494 | ASSERT_WDEV_LOCK(wdev); |
495 | ||
19957bb3 JB |
496 | memset(&req, 0, sizeof(req)); |
497 | ||
24b6b15f JM |
498 | if (wdev->current_bss && prev_bssid && |
499 | memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) { | |
500 | /* | |
501 | * Trying to reassociate: Allow this to proceed and let the old | |
502 | * association to be dropped when the new one is completed. | |
503 | */ | |
504 | if (wdev->sme_state == CFG80211_SME_CONNECTED) { | |
505 | was_connected = true; | |
506 | wdev->sme_state = CFG80211_SME_CONNECTING; | |
507 | } | |
508 | } else if (wdev->current_bss) | |
19957bb3 JB |
509 | return -EALREADY; |
510 | ||
511 | req.ie = ie; | |
512 | req.ie_len = ie_len; | |
513 | memcpy(&req.crypto, crypt, sizeof(req.crypto)); | |
514 | req.use_mfp = use_mfp; | |
3e5d7649 | 515 | req.prev_bssid = prev_bssid; |
19957bb3 JB |
516 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
517 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
24b6b15f JM |
518 | if (!req.bss) { |
519 | if (was_connected) | |
520 | wdev->sme_state = CFG80211_SME_CONNECTED; | |
19957bb3 | 521 | return -ENOENT; |
24b6b15f | 522 | } |
19957bb3 JB |
523 | |
524 | bss = bss_from_pub(req.bss); | |
525 | ||
526 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
527 | if (bss == wdev->auth_bsses[i]) { | |
528 | slot = i; | |
529 | break; | |
530 | } | |
531 | } | |
532 | ||
533 | if (slot < 0) { | |
534 | err = -ENOTCONN; | |
535 | goto out; | |
536 | } | |
537 | ||
538 | err = rdev->ops->assoc(&rdev->wiphy, dev, &req); | |
539 | out: | |
24b6b15f JM |
540 | if (err && was_connected) |
541 | wdev->sme_state = CFG80211_SME_CONNECTED; | |
19957bb3 JB |
542 | /* still a reference in wdev->auth_bsses[slot] */ |
543 | cfg80211_put_bss(req.bss); | |
544 | return err; | |
545 | } | |
546 | ||
667503dd JB |
547 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
548 | struct net_device *dev, | |
549 | struct ieee80211_channel *chan, | |
550 | const u8 *bssid, const u8 *prev_bssid, | |
551 | const u8 *ssid, int ssid_len, | |
552 | const u8 *ie, int ie_len, bool use_mfp, | |
553 | struct cfg80211_crypto_settings *crypt) | |
554 | { | |
555 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
556 | int err; | |
557 | ||
558 | wdev_lock(wdev); | |
559 | err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, | |
560 | ssid, ssid_len, ie, ie_len, use_mfp, crypt); | |
561 | wdev_unlock(wdev); | |
562 | ||
563 | return err; | |
564 | } | |
565 | ||
566 | int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, | |
567 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
568 | const u8 *ie, int ie_len, u16 reason, |
569 | bool local_state_change) | |
19957bb3 JB |
570 | { |
571 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
572 | struct cfg80211_deauth_request req; | |
573 | int i; | |
574 | ||
667503dd JB |
575 | ASSERT_WDEV_LOCK(wdev); |
576 | ||
19957bb3 JB |
577 | memset(&req, 0, sizeof(req)); |
578 | req.reason_code = reason; | |
d5cdfacb | 579 | req.local_state_change = local_state_change; |
19957bb3 JB |
580 | req.ie = ie; |
581 | req.ie_len = ie_len; | |
582 | if (wdev->current_bss && | |
583 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { | |
584 | req.bss = &wdev->current_bss->pub; | |
585 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
586 | if (wdev->auth_bsses[i] && | |
587 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) { | |
588 | req.bss = &wdev->auth_bsses[i]->pub; | |
589 | break; | |
590 | } | |
591 | if (wdev->authtry_bsses[i] && | |
592 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) { | |
593 | req.bss = &wdev->authtry_bsses[i]->pub; | |
594 | break; | |
595 | } | |
596 | } | |
597 | ||
598 | if (!req.bss) | |
599 | return -ENOTCONN; | |
600 | ||
667503dd | 601 | return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
602 | } |
603 | ||
667503dd JB |
604 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
605 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
606 | const u8 *ie, int ie_len, u16 reason, |
607 | bool local_state_change) | |
667503dd JB |
608 | { |
609 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
610 | int err; | |
611 | ||
612 | wdev_lock(wdev); | |
d5cdfacb JM |
613 | err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason, |
614 | local_state_change); | |
667503dd JB |
615 | wdev_unlock(wdev); |
616 | ||
617 | return err; | |
618 | } | |
619 | ||
620 | static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, | |
621 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
622 | const u8 *ie, int ie_len, u16 reason, |
623 | bool local_state_change) | |
19957bb3 JB |
624 | { |
625 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
626 | struct cfg80211_disassoc_request req; | |
627 | ||
667503dd JB |
628 | ASSERT_WDEV_LOCK(wdev); |
629 | ||
f9d6b402 JB |
630 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
631 | return -ENOTCONN; | |
632 | ||
633 | if (WARN_ON(!wdev->current_bss)) | |
634 | return -ENOTCONN; | |
635 | ||
19957bb3 JB |
636 | memset(&req, 0, sizeof(req)); |
637 | req.reason_code = reason; | |
d5cdfacb | 638 | req.local_state_change = local_state_change; |
19957bb3 JB |
639 | req.ie = ie; |
640 | req.ie_len = ie_len; | |
641 | if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) | |
642 | req.bss = &wdev->current_bss->pub; | |
643 | else | |
644 | return -ENOTCONN; | |
645 | ||
667503dd JB |
646 | return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev); |
647 | } | |
648 | ||
649 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, | |
650 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
651 | const u8 *ie, int ie_len, u16 reason, |
652 | bool local_state_change) | |
667503dd JB |
653 | { |
654 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
655 | int err; | |
656 | ||
657 | wdev_lock(wdev); | |
d5cdfacb JM |
658 | err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason, |
659 | local_state_change); | |
667503dd JB |
660 | wdev_unlock(wdev); |
661 | ||
662 | return err; | |
19957bb3 JB |
663 | } |
664 | ||
665 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, | |
666 | struct net_device *dev) | |
667 | { | |
668 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
669 | struct cfg80211_deauth_request req; | |
670 | int i; | |
671 | ||
667503dd JB |
672 | ASSERT_WDEV_LOCK(wdev); |
673 | ||
19957bb3 JB |
674 | if (!rdev->ops->deauth) |
675 | return; | |
676 | ||
677 | memset(&req, 0, sizeof(req)); | |
678 | req.reason_code = WLAN_REASON_DEAUTH_LEAVING; | |
679 | req.ie = NULL; | |
680 | req.ie_len = 0; | |
681 | ||
682 | if (wdev->current_bss) { | |
683 | req.bss = &wdev->current_bss->pub; | |
667503dd | 684 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
685 | if (wdev->current_bss) { |
686 | cfg80211_unhold_bss(wdev->current_bss); | |
687 | cfg80211_put_bss(&wdev->current_bss->pub); | |
688 | wdev->current_bss = NULL; | |
689 | } | |
690 | } | |
691 | ||
692 | for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
693 | if (wdev->auth_bsses[i]) { | |
694 | req.bss = &wdev->auth_bsses[i]->pub; | |
667503dd | 695 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
696 | if (wdev->auth_bsses[i]) { |
697 | cfg80211_unhold_bss(wdev->auth_bsses[i]); | |
698 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); | |
699 | wdev->auth_bsses[i] = NULL; | |
700 | } | |
701 | } | |
702 | if (wdev->authtry_bsses[i]) { | |
703 | req.bss = &wdev->authtry_bsses[i]->pub; | |
667503dd | 704 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
19957bb3 JB |
705 | if (wdev->authtry_bsses[i]) { |
706 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); | |
707 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); | |
708 | wdev->authtry_bsses[i] = NULL; | |
709 | } | |
710 | } | |
711 | } | |
712 | } | |
9588bbd5 JM |
713 | |
714 | void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, | |
715 | struct ieee80211_channel *chan, | |
716 | enum nl80211_channel_type channel_type, | |
717 | unsigned int duration, gfp_t gfp) | |
718 | { | |
719 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
720 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
721 | ||
722 | nl80211_send_remain_on_channel(rdev, dev, cookie, chan, channel_type, | |
723 | duration, gfp); | |
724 | } | |
725 | EXPORT_SYMBOL(cfg80211_ready_on_channel); | |
726 | ||
727 | void cfg80211_remain_on_channel_expired(struct net_device *dev, | |
728 | u64 cookie, | |
729 | struct ieee80211_channel *chan, | |
730 | enum nl80211_channel_type channel_type, | |
731 | gfp_t gfp) | |
732 | { | |
733 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
734 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
735 | ||
736 | nl80211_send_remain_on_channel_cancel(rdev, dev, cookie, chan, | |
737 | channel_type, gfp); | |
738 | } | |
739 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); | |
98b62183 JB |
740 | |
741 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, | |
742 | struct station_info *sinfo, gfp_t gfp) | |
743 | { | |
744 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; | |
745 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
746 | ||
747 | nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp); | |
748 | } | |
749 | EXPORT_SYMBOL(cfg80211_new_sta); | |
026331c4 | 750 | |
2e161f78 | 751 | struct cfg80211_mgmt_registration { |
026331c4 JM |
752 | struct list_head list; |
753 | ||
754 | u32 nlpid; | |
755 | ||
756 | int match_len; | |
757 | ||
2e161f78 JB |
758 | __le16 frame_type; |
759 | ||
026331c4 JM |
760 | u8 match[]; |
761 | }; | |
762 | ||
2e161f78 JB |
763 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, |
764 | u16 frame_type, const u8 *match_data, | |
765 | int match_len) | |
026331c4 | 766 | { |
271733cf JB |
767 | struct wiphy *wiphy = wdev->wiphy; |
768 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 | 769 | struct cfg80211_mgmt_registration *reg, *nreg; |
026331c4 | 770 | int err = 0; |
2e161f78 JB |
771 | u16 mgmt_type; |
772 | ||
773 | if (!wdev->wiphy->mgmt_stypes) | |
774 | return -EOPNOTSUPP; | |
775 | ||
776 | if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) | |
777 | return -EINVAL; | |
778 | ||
779 | if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) | |
780 | return -EINVAL; | |
781 | ||
782 | mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; | |
783 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) | |
784 | return -EINVAL; | |
026331c4 JM |
785 | |
786 | nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); | |
787 | if (!nreg) | |
788 | return -ENOMEM; | |
789 | ||
2e161f78 | 790 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 791 | |
2e161f78 | 792 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
026331c4 JM |
793 | int mlen = min(match_len, reg->match_len); |
794 | ||
2e161f78 JB |
795 | if (frame_type != le16_to_cpu(reg->frame_type)) |
796 | continue; | |
797 | ||
026331c4 JM |
798 | if (memcmp(reg->match, match_data, mlen) == 0) { |
799 | err = -EALREADY; | |
800 | break; | |
801 | } | |
802 | } | |
803 | ||
804 | if (err) { | |
805 | kfree(nreg); | |
806 | goto out; | |
807 | } | |
808 | ||
809 | memcpy(nreg->match, match_data, match_len); | |
810 | nreg->match_len = match_len; | |
811 | nreg->nlpid = snd_pid; | |
2e161f78 JB |
812 | nreg->frame_type = cpu_to_le16(frame_type); |
813 | list_add(&nreg->list, &wdev->mgmt_registrations); | |
026331c4 | 814 | |
271733cf JB |
815 | if (rdev->ops->mgmt_frame_register) |
816 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, | |
817 | frame_type, true); | |
818 | ||
026331c4 | 819 | out: |
2e161f78 | 820 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
271733cf | 821 | |
026331c4 JM |
822 | return err; |
823 | } | |
824 | ||
2e161f78 | 825 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid) |
026331c4 | 826 | { |
271733cf JB |
827 | struct wiphy *wiphy = wdev->wiphy; |
828 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 | 829 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 830 | |
2e161f78 | 831 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 832 | |
2e161f78 | 833 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
271733cf JB |
834 | if (reg->nlpid != nlpid) |
835 | continue; | |
836 | ||
837 | if (rdev->ops->mgmt_frame_register) { | |
838 | u16 frame_type = le16_to_cpu(reg->frame_type); | |
839 | ||
840 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, | |
841 | frame_type, false); | |
026331c4 | 842 | } |
271733cf JB |
843 | |
844 | list_del(®->list); | |
845 | kfree(reg); | |
026331c4 JM |
846 | } |
847 | ||
2e161f78 | 848 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
849 | } |
850 | ||
2e161f78 | 851 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) |
026331c4 | 852 | { |
2e161f78 | 853 | struct cfg80211_mgmt_registration *reg, *tmp; |
026331c4 | 854 | |
2e161f78 | 855 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
026331c4 | 856 | |
2e161f78 | 857 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
026331c4 JM |
858 | list_del(®->list); |
859 | kfree(reg); | |
860 | } | |
861 | ||
2e161f78 | 862 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
863 | } |
864 | ||
2e161f78 JB |
865 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, |
866 | struct net_device *dev, | |
867 | struct ieee80211_channel *chan, | |
868 | enum nl80211_channel_type channel_type, | |
869 | bool channel_type_valid, | |
870 | const u8 *buf, size_t len, u64 *cookie) | |
026331c4 JM |
871 | { |
872 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
873 | const struct ieee80211_mgmt *mgmt; | |
2e161f78 JB |
874 | u16 stype; |
875 | ||
876 | if (!wdev->wiphy->mgmt_stypes) | |
877 | return -EOPNOTSUPP; | |
026331c4 | 878 | |
2e161f78 | 879 | if (!rdev->ops->mgmt_tx) |
026331c4 | 880 | return -EOPNOTSUPP; |
2e161f78 | 881 | |
026331c4 JM |
882 | if (len < 24 + 1) |
883 | return -EINVAL; | |
884 | ||
885 | mgmt = (const struct ieee80211_mgmt *) buf; | |
2e161f78 JB |
886 | |
887 | if (!ieee80211_is_mgmt(mgmt->frame_control)) | |
026331c4 | 888 | return -EINVAL; |
2e161f78 JB |
889 | |
890 | stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; | |
891 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) | |
892 | return -EINVAL; | |
893 | ||
894 | if (ieee80211_is_action(mgmt->frame_control) && | |
895 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { | |
663fcafd JB |
896 | int err = 0; |
897 | ||
fe100acd JB |
898 | wdev_lock(wdev); |
899 | ||
663fcafd JB |
900 | switch (wdev->iftype) { |
901 | case NL80211_IFTYPE_ADHOC: | |
902 | case NL80211_IFTYPE_STATION: | |
903 | case NL80211_IFTYPE_P2P_CLIENT: | |
904 | if (!wdev->current_bss) { | |
905 | err = -ENOTCONN; | |
906 | break; | |
907 | } | |
908 | ||
909 | if (memcmp(wdev->current_bss->pub.bssid, | |
910 | mgmt->bssid, ETH_ALEN)) { | |
911 | err = -ENOTCONN; | |
912 | break; | |
913 | } | |
914 | ||
915 | /* | |
916 | * check for IBSS DA must be done by driver as | |
917 | * cfg80211 doesn't track the stations | |
918 | */ | |
919 | if (wdev->iftype == NL80211_IFTYPE_ADHOC) | |
920 | break; | |
fe100acd | 921 | |
663fcafd JB |
922 | /* for station, check that DA is the AP */ |
923 | if (memcmp(wdev->current_bss->pub.bssid, | |
924 | mgmt->da, ETH_ALEN)) { | |
925 | err = -ENOTCONN; | |
926 | break; | |
927 | } | |
928 | break; | |
929 | case NL80211_IFTYPE_AP: | |
930 | case NL80211_IFTYPE_P2P_GO: | |
931 | case NL80211_IFTYPE_AP_VLAN: | |
932 | if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN)) | |
933 | err = -EINVAL; | |
934 | break; | |
935 | default: | |
936 | err = -EOPNOTSUPP; | |
937 | break; | |
938 | } | |
fe100acd | 939 | wdev_unlock(wdev); |
663fcafd JB |
940 | |
941 | if (err) | |
942 | return err; | |
026331c4 JM |
943 | } |
944 | ||
945 | if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0) | |
946 | return -EINVAL; | |
947 | ||
948 | /* Transmit the Action frame as requested by user space */ | |
2e161f78 JB |
949 | return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, channel_type, |
950 | channel_type_valid, buf, len, cookie); | |
026331c4 JM |
951 | } |
952 | ||
2e161f78 JB |
953 | bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, |
954 | size_t len, gfp_t gfp) | |
026331c4 JM |
955 | { |
956 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
957 | struct wiphy *wiphy = wdev->wiphy; | |
958 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
2e161f78 JB |
959 | struct cfg80211_mgmt_registration *reg; |
960 | const struct ieee80211_txrx_stypes *stypes = | |
961 | &wiphy->mgmt_stypes[wdev->iftype]; | |
962 | struct ieee80211_mgmt *mgmt = (void *)buf; | |
963 | const u8 *data; | |
964 | int data_len; | |
026331c4 | 965 | bool result = false; |
2e161f78 JB |
966 | __le16 ftype = mgmt->frame_control & |
967 | cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); | |
968 | u16 stype; | |
026331c4 | 969 | |
2e161f78 | 970 | stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; |
026331c4 | 971 | |
2e161f78 JB |
972 | if (!(stypes->rx & BIT(stype))) |
973 | return false; | |
026331c4 | 974 | |
2e161f78 JB |
975 | data = buf + ieee80211_hdrlen(mgmt->frame_control); |
976 | data_len = len - ieee80211_hdrlen(mgmt->frame_control); | |
977 | ||
978 | spin_lock_bh(&wdev->mgmt_registrations_lock); | |
979 | ||
980 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { | |
981 | if (reg->frame_type != ftype) | |
982 | continue; | |
026331c4 | 983 | |
2e161f78 | 984 | if (reg->match_len > data_len) |
026331c4 JM |
985 | continue; |
986 | ||
2e161f78 | 987 | if (memcmp(reg->match, data, reg->match_len)) |
026331c4 JM |
988 | continue; |
989 | ||
990 | /* found match! */ | |
991 | ||
992 | /* Indicate the received Action frame to user space */ | |
2e161f78 JB |
993 | if (nl80211_send_mgmt(rdev, dev, reg->nlpid, freq, |
994 | buf, len, gfp)) | |
026331c4 JM |
995 | continue; |
996 | ||
997 | result = true; | |
998 | break; | |
999 | } | |
1000 | ||
2e161f78 | 1001 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
026331c4 JM |
1002 | |
1003 | return result; | |
1004 | } | |
2e161f78 | 1005 | EXPORT_SYMBOL(cfg80211_rx_mgmt); |
026331c4 | 1006 | |
2e161f78 JB |
1007 | void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, |
1008 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
026331c4 JM |
1009 | { |
1010 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1011 | struct wiphy *wiphy = wdev->wiphy; | |
1012 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
1013 | ||
1014 | /* Indicate TX status of the Action frame to user space */ | |
2e161f78 | 1015 | nl80211_send_mgmt_tx_status(rdev, dev, cookie, buf, len, ack, gfp); |
026331c4 | 1016 | } |
2e161f78 | 1017 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
d6dc1a38 JO |
1018 | |
1019 | void cfg80211_cqm_rssi_notify(struct net_device *dev, | |
1020 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
1021 | gfp_t gfp) | |
1022 | { | |
1023 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1024 | struct wiphy *wiphy = wdev->wiphy; | |
1025 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
1026 | ||
1027 | /* Indicate roaming trigger event to user space */ | |
1028 | nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp); | |
1029 | } | |
1030 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |