2 * cfg80211 MLME SAP interface
4 * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
7 #include <linux/kernel.h>
8 #include <linux/module.h>
9 #include <linux/netdevice.h>
10 #include <linux/nl80211.h>
11 #include <linux/slab.h>
12 #include <linux/wireless.h>
13 #include <net/cfg80211.h>
14 #include <net/iw_handler.h>
18 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
20 struct wireless_dev *wdev = dev->ieee80211_ptr;
21 struct wiphy *wiphy = wdev->wiphy;
22 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
23 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
24 u8 *bssid = mgmt->bssid;
26 u16 status = le16_to_cpu(mgmt->u.auth.status_code);
31 for (i = 0; i < MAX_AUTH_BSSES; i++) {
32 if (wdev->authtry_bsses[i] &&
33 memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid,
35 if (status == WLAN_STATUS_SUCCESS) {
36 wdev->auth_bsses[i] = wdev->authtry_bsses[i];
38 cfg80211_unhold_bss(wdev->authtry_bsses[i]);
39 cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
41 wdev->authtry_bsses[i] = NULL;
48 nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
49 cfg80211_sme_rx_auth(dev, buf, len);
54 EXPORT_SYMBOL(cfg80211_send_rx_auth);
56 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
59 struct wireless_dev *wdev = dev->ieee80211_ptr;
60 struct wiphy *wiphy = wdev->wiphy;
61 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
62 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
63 u8 *ie = mgmt->u.assoc_resp.variable;
64 int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
65 struct cfg80211_internal_bss *bss = NULL;
69 status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
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.
77 if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
78 cfg80211_sme_failed_reassoc(wdev))
81 nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
83 if (status_code == WLAN_STATUS_SUCCESS) {
84 for (i = 0; i < MAX_AUTH_BSSES; i++) {
85 if (!wdev->auth_bsses[i])
87 if (memcmp(wdev->auth_bsses[i]->pub.bssid, mgmt->bssid,
89 bss = wdev->auth_bsses[i];
90 wdev->auth_bsses[i] = NULL;
91 /* additional reference to drop hold */
92 cfg80211_ref_bss(bss);
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.
109 } else if (wdev->conn) {
110 cfg80211_sme_failed_assoc(wdev);
112 * do not call connect_result() now because the
113 * sme will schedule work that does it later.
118 if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
120 * This is for the userspace SME, the CONNECTING
121 * state will be changed to CONNECTED by
122 * __cfg80211_connect_result() below.
124 wdev->sme_state = CFG80211_SME_CONNECTING;
127 /* this consumes one bss reference (unless bss is NULL) */
128 __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
130 status_code == WLAN_STATUS_SUCCESS,
131 bss ? &bss->pub : NULL);
132 /* drop hold now, and also reference acquired above */
134 cfg80211_unhold_bss(bss);
135 cfg80211_put_bss(&bss->pub);
141 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
143 void __cfg80211_send_deauth(struct net_device *dev,
144 const u8 *buf, size_t len)
146 struct wireless_dev *wdev = dev->ieee80211_ptr;
147 struct wiphy *wiphy = wdev->wiphy;
148 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
149 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
150 const u8 *bssid = mgmt->bssid;
152 bool found = false, was_current = false;
154 ASSERT_WDEV_LOCK(wdev);
156 if (wdev->current_bss &&
157 memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
158 cfg80211_unhold_bss(wdev->current_bss);
159 cfg80211_put_bss(&wdev->current_bss->pub);
160 wdev->current_bss = NULL;
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;
172 if (wdev->authtry_bsses[i] &&
173 memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid,
175 memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) == 0) {
176 cfg80211_unhold_bss(wdev->authtry_bsses[i]);
177 cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
178 wdev->authtry_bsses[i] = NULL;
187 nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
189 if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) {
193 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
195 from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
196 __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
197 } else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
198 __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
199 WLAN_STATUS_UNSPECIFIED_FAILURE,
203 EXPORT_SYMBOL(__cfg80211_send_deauth);
205 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
207 struct wireless_dev *wdev = dev->ieee80211_ptr;
210 __cfg80211_send_deauth(dev, buf, len);
213 EXPORT_SYMBOL(cfg80211_send_deauth);
215 void __cfg80211_send_disassoc(struct net_device *dev,
216 const u8 *buf, size_t len)
218 struct wireless_dev *wdev = dev->ieee80211_ptr;
219 struct wiphy *wiphy = wdev->wiphy;
220 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
221 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
222 const u8 *bssid = mgmt->bssid;
228 ASSERT_WDEV_LOCK(wdev);
230 nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
232 if (wdev->sme_state != CFG80211_SME_CONNECTED)
235 if (wdev->current_bss &&
236 memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
237 for (i = 0; i < MAX_AUTH_BSSES; i++) {
238 if (wdev->authtry_bsses[i] || wdev->auth_bsses[i])
240 wdev->auth_bsses[i] = wdev->current_bss;
241 wdev->current_bss = NULL;
243 cfg80211_sme_disassoc(dev, i);
251 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
253 from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
254 __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
256 EXPORT_SYMBOL(__cfg80211_send_disassoc);
258 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
260 struct wireless_dev *wdev = dev->ieee80211_ptr;
263 __cfg80211_send_disassoc(dev, buf, len);
266 EXPORT_SYMBOL(cfg80211_send_disassoc);
268 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
271 struct wireless_dev *wdev = dev->ieee80211_ptr;
272 struct wiphy *wiphy = wdev->wiphy;
273 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
275 nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC);
277 EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
279 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
282 struct wireless_dev *wdev = dev->ieee80211_ptr;
283 struct wiphy *wiphy = wdev->wiphy;
284 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
286 nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC);
288 EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
290 static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr)
295 ASSERT_WDEV_LOCK(wdev);
297 for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
298 if (wdev->authtry_bsses[i] &&
299 memcmp(wdev->authtry_bsses[i]->pub.bssid,
300 addr, ETH_ALEN) == 0) {
301 cfg80211_unhold_bss(wdev->authtry_bsses[i]);
302 cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
303 wdev->authtry_bsses[i] = NULL;
312 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr)
314 __cfg80211_auth_remove(dev->ieee80211_ptr, addr);
316 EXPORT_SYMBOL(__cfg80211_auth_canceled);
318 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
320 struct wireless_dev *wdev = dev->ieee80211_ptr;
321 struct wiphy *wiphy = wdev->wiphy;
322 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
326 nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
327 if (wdev->sme_state == CFG80211_SME_CONNECTING)
328 __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
329 WLAN_STATUS_UNSPECIFIED_FAILURE,
332 __cfg80211_auth_remove(wdev, addr);
336 EXPORT_SYMBOL(cfg80211_send_auth_timeout);
338 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
340 struct wireless_dev *wdev = dev->ieee80211_ptr;
341 struct wiphy *wiphy = wdev->wiphy;
342 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
348 nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
349 if (wdev->sme_state == CFG80211_SME_CONNECTING)
350 __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
351 WLAN_STATUS_UNSPECIFIED_FAILURE,
354 for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
355 if (wdev->auth_bsses[i] &&
356 memcmp(wdev->auth_bsses[i]->pub.bssid,
357 addr, ETH_ALEN) == 0) {
358 cfg80211_unhold_bss(wdev->auth_bsses[i]);
359 cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
360 wdev->auth_bsses[i] = NULL;
370 EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
372 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
373 enum nl80211_key_type key_type, int key_id,
374 const u8 *tsc, gfp_t gfp)
376 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
377 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
378 #ifdef CONFIG_CFG80211_WEXT
379 union iwreq_data wrqu;
380 char *buf = kmalloc(128, gfp);
383 sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
384 "keyid=%d %scast addr=%pM)", key_id,
385 key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
387 memset(&wrqu, 0, sizeof(wrqu));
388 wrqu.data.length = strlen(buf);
389 wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
394 nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
396 EXPORT_SYMBOL(cfg80211_michael_mic_failure);
398 /* some MLME handling for userspace SME */
399 int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
400 struct net_device *dev,
401 struct ieee80211_channel *chan,
402 enum nl80211_auth_type auth_type,
404 const u8 *ssid, int ssid_len,
405 const u8 *ie, int ie_len,
406 const u8 *key, int key_len, int key_idx,
407 bool local_state_change)
409 struct wireless_dev *wdev = dev->ieee80211_ptr;
410 struct cfg80211_auth_request req;
411 struct cfg80211_internal_bss *bss;
412 int i, err, slot = -1, nfree = 0;
414 ASSERT_WDEV_LOCK(wdev);
416 if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
417 if (!key || !key_len || key_idx < 0 || key_idx > 4)
420 if (wdev->current_bss &&
421 memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0)
424 for (i = 0; i < MAX_AUTH_BSSES; i++) {
425 if (wdev->authtry_bsses[i] &&
426 memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid,
429 if (wdev->auth_bsses[i] &&
430 memcmp(bssid, wdev->auth_bsses[i]->pub.bssid,
435 memset(&req, 0, sizeof(req));
437 req.local_state_change = local_state_change;
440 req.auth_type = auth_type;
441 req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
442 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
444 req.key_len = key_len;
445 req.key_idx = key_idx;
449 bss = bss_from_pub(req.bss);
451 for (i = 0; i < MAX_AUTH_BSSES; i++) {
452 if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) {
458 /* we need one free slot for disassoc and one for this auth */
464 if (local_state_change)
465 wdev->auth_bsses[slot] = bss;
467 wdev->authtry_bsses[slot] = bss;
468 cfg80211_hold_bss(bss);
470 err = rdev->ops->auth(&rdev->wiphy, dev, &req);
472 if (local_state_change)
473 wdev->auth_bsses[slot] = NULL;
475 wdev->authtry_bsses[slot] = NULL;
476 cfg80211_unhold_bss(bss);
481 cfg80211_put_bss(req.bss);
485 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
486 struct net_device *dev, struct ieee80211_channel *chan,
487 enum nl80211_auth_type auth_type, const u8 *bssid,
488 const u8 *ssid, int ssid_len,
489 const u8 *ie, int ie_len,
490 const u8 *key, int key_len, int key_idx,
491 bool local_state_change)
495 wdev_lock(dev->ieee80211_ptr);
496 err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
497 ssid, ssid_len, ie, ie_len,
498 key, key_len, key_idx, local_state_change);
499 wdev_unlock(dev->ieee80211_ptr);
504 int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
505 struct net_device *dev,
506 struct ieee80211_channel *chan,
507 const u8 *bssid, const u8 *prev_bssid,
508 const u8 *ssid, int ssid_len,
509 const u8 *ie, int ie_len, bool use_mfp,
510 struct cfg80211_crypto_settings *crypt)
512 struct wireless_dev *wdev = dev->ieee80211_ptr;
513 struct cfg80211_assoc_request req;
514 struct cfg80211_internal_bss *bss;
515 int i, err, slot = -1;
516 bool was_connected = false;
518 ASSERT_WDEV_LOCK(wdev);
520 memset(&req, 0, sizeof(req));
522 if (wdev->current_bss && prev_bssid &&
523 memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) {
525 * Trying to reassociate: Allow this to proceed and let the old
526 * association to be dropped when the new one is completed.
528 if (wdev->sme_state == CFG80211_SME_CONNECTED) {
529 was_connected = true;
530 wdev->sme_state = CFG80211_SME_CONNECTING;
532 } else if (wdev->current_bss)
537 memcpy(&req.crypto, crypt, sizeof(req.crypto));
538 req.use_mfp = use_mfp;
539 req.prev_bssid = prev_bssid;
540 req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
541 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
544 wdev->sme_state = CFG80211_SME_CONNECTED;
548 bss = bss_from_pub(req.bss);
550 for (i = 0; i < MAX_AUTH_BSSES; i++) {
551 if (bss == wdev->auth_bsses[i]) {
562 err = rdev->ops->assoc(&rdev->wiphy, dev, &req);
564 if (err && was_connected)
565 wdev->sme_state = CFG80211_SME_CONNECTED;
566 /* still a reference in wdev->auth_bsses[slot] */
567 cfg80211_put_bss(req.bss);
571 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
572 struct net_device *dev,
573 struct ieee80211_channel *chan,
574 const u8 *bssid, const u8 *prev_bssid,
575 const u8 *ssid, int ssid_len,
576 const u8 *ie, int ie_len, bool use_mfp,
577 struct cfg80211_crypto_settings *crypt)
579 struct wireless_dev *wdev = dev->ieee80211_ptr;
583 err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
584 ssid, ssid_len, ie, ie_len, use_mfp, crypt);
590 int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
591 struct net_device *dev, const u8 *bssid,
592 const u8 *ie, int ie_len, u16 reason,
593 bool local_state_change)
595 struct wireless_dev *wdev = dev->ieee80211_ptr;
596 struct cfg80211_deauth_request req;
599 ASSERT_WDEV_LOCK(wdev);
601 memset(&req, 0, sizeof(req));
602 req.reason_code = reason;
603 req.local_state_change = local_state_change;
606 if (wdev->current_bss &&
607 memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
608 req.bss = &wdev->current_bss->pub;
609 } else for (i = 0; i < MAX_AUTH_BSSES; i++) {
610 if (wdev->auth_bsses[i] &&
611 memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) {
612 req.bss = &wdev->auth_bsses[i]->pub;
615 if (wdev->authtry_bsses[i] &&
616 memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) {
617 req.bss = &wdev->authtry_bsses[i]->pub;
625 return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
628 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
629 struct net_device *dev, const u8 *bssid,
630 const u8 *ie, int ie_len, u16 reason,
631 bool local_state_change)
633 struct wireless_dev *wdev = dev->ieee80211_ptr;
637 err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason,
644 static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
645 struct net_device *dev, const u8 *bssid,
646 const u8 *ie, int ie_len, u16 reason,
647 bool local_state_change)
649 struct wireless_dev *wdev = dev->ieee80211_ptr;
650 struct cfg80211_disassoc_request req;
652 ASSERT_WDEV_LOCK(wdev);
654 if (wdev->sme_state != CFG80211_SME_CONNECTED)
657 if (WARN_ON(!wdev->current_bss))
660 memset(&req, 0, sizeof(req));
661 req.reason_code = reason;
662 req.local_state_change = local_state_change;
665 if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0)
666 req.bss = &wdev->current_bss->pub;
670 return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev);
673 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
674 struct net_device *dev, const u8 *bssid,
675 const u8 *ie, int ie_len, u16 reason,
676 bool local_state_change)
678 struct wireless_dev *wdev = dev->ieee80211_ptr;
682 err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason,
689 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
690 struct net_device *dev)
692 struct wireless_dev *wdev = dev->ieee80211_ptr;
693 struct cfg80211_deauth_request req;
696 ASSERT_WDEV_LOCK(wdev);
698 if (!rdev->ops->deauth)
701 memset(&req, 0, sizeof(req));
702 req.reason_code = WLAN_REASON_DEAUTH_LEAVING;
706 if (wdev->current_bss) {
707 req.bss = &wdev->current_bss->pub;
708 rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
709 if (wdev->current_bss) {
710 cfg80211_unhold_bss(wdev->current_bss);
711 cfg80211_put_bss(&wdev->current_bss->pub);
712 wdev->current_bss = NULL;
716 for (i = 0; i < MAX_AUTH_BSSES; i++) {
717 if (wdev->auth_bsses[i]) {
718 req.bss = &wdev->auth_bsses[i]->pub;
719 rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
720 if (wdev->auth_bsses[i]) {
721 cfg80211_unhold_bss(wdev->auth_bsses[i]);
722 cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
723 wdev->auth_bsses[i] = NULL;
726 if (wdev->authtry_bsses[i]) {
727 req.bss = &wdev->authtry_bsses[i]->pub;
728 rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
729 if (wdev->authtry_bsses[i]) {
730 cfg80211_unhold_bss(wdev->authtry_bsses[i]);
731 cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
732 wdev->authtry_bsses[i] = NULL;
738 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
739 struct ieee80211_channel *chan,
740 enum nl80211_channel_type channel_type,
741 unsigned int duration, gfp_t gfp)
743 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
744 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
746 nl80211_send_remain_on_channel(rdev, dev, cookie, chan, channel_type,
749 EXPORT_SYMBOL(cfg80211_ready_on_channel);
751 void cfg80211_remain_on_channel_expired(struct net_device *dev,
753 struct ieee80211_channel *chan,
754 enum nl80211_channel_type channel_type,
757 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
758 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
760 nl80211_send_remain_on_channel_cancel(rdev, dev, cookie, chan,
763 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
765 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
766 struct station_info *sinfo, gfp_t gfp)
768 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
769 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
771 nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp);
773 EXPORT_SYMBOL(cfg80211_new_sta);
775 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
777 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
778 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
780 nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp);
782 EXPORT_SYMBOL(cfg80211_del_sta);
784 struct cfg80211_mgmt_registration {
785 struct list_head list;
796 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
797 u16 frame_type, const u8 *match_data,
800 struct wiphy *wiphy = wdev->wiphy;
801 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
802 struct cfg80211_mgmt_registration *reg, *nreg;
806 if (!wdev->wiphy->mgmt_stypes)
809 if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT)
812 if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
815 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
816 if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type)))
819 nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL);
823 spin_lock_bh(&wdev->mgmt_registrations_lock);
825 list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
826 int mlen = min(match_len, reg->match_len);
828 if (frame_type != le16_to_cpu(reg->frame_type))
831 if (memcmp(reg->match, match_data, mlen) == 0) {
842 memcpy(nreg->match, match_data, match_len);
843 nreg->match_len = match_len;
844 nreg->nlpid = snd_pid;
845 nreg->frame_type = cpu_to_le16(frame_type);
846 list_add(&nreg->list, &wdev->mgmt_registrations);
848 if (rdev->ops->mgmt_frame_register)
849 rdev->ops->mgmt_frame_register(wiphy, wdev->netdev,
853 spin_unlock_bh(&wdev->mgmt_registrations_lock);
858 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid)
860 struct wiphy *wiphy = wdev->wiphy;
861 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
862 struct cfg80211_mgmt_registration *reg, *tmp;
864 spin_lock_bh(&wdev->mgmt_registrations_lock);
866 list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
867 if (reg->nlpid != nlpid)
870 if (rdev->ops->mgmt_frame_register) {
871 u16 frame_type = le16_to_cpu(reg->frame_type);
873 rdev->ops->mgmt_frame_register(wiphy, wdev->netdev,
877 list_del(®->list);
881 spin_unlock_bh(&wdev->mgmt_registrations_lock);
883 if (nlpid == wdev->ap_unexpected_nlpid)
884 wdev->ap_unexpected_nlpid = 0;
887 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
889 struct cfg80211_mgmt_registration *reg, *tmp;
891 spin_lock_bh(&wdev->mgmt_registrations_lock);
893 list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
894 list_del(®->list);
898 spin_unlock_bh(&wdev->mgmt_registrations_lock);
901 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
902 struct net_device *dev,
903 struct ieee80211_channel *chan, bool offchan,
904 enum nl80211_channel_type channel_type,
905 bool channel_type_valid, unsigned int wait,
906 const u8 *buf, size_t len, bool no_cck,
907 bool dont_wait_for_ack, u64 *cookie)
909 struct wireless_dev *wdev = dev->ieee80211_ptr;
910 const struct ieee80211_mgmt *mgmt;
913 if (!wdev->wiphy->mgmt_stypes)
916 if (!rdev->ops->mgmt_tx)
922 mgmt = (const struct ieee80211_mgmt *) buf;
924 if (!ieee80211_is_mgmt(mgmt->frame_control))
927 stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
928 if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4)))
931 if (ieee80211_is_action(mgmt->frame_control) &&
932 mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) {
937 switch (wdev->iftype) {
938 case NL80211_IFTYPE_ADHOC:
939 case NL80211_IFTYPE_STATION:
940 case NL80211_IFTYPE_P2P_CLIENT:
941 if (!wdev->current_bss) {
946 if (memcmp(wdev->current_bss->pub.bssid,
947 mgmt->bssid, ETH_ALEN)) {
953 * check for IBSS DA must be done by driver as
954 * cfg80211 doesn't track the stations
956 if (wdev->iftype == NL80211_IFTYPE_ADHOC)
959 /* for station, check that DA is the AP */
960 if (memcmp(wdev->current_bss->pub.bssid,
961 mgmt->da, ETH_ALEN)) {
966 case NL80211_IFTYPE_AP:
967 case NL80211_IFTYPE_P2P_GO:
968 case NL80211_IFTYPE_AP_VLAN:
969 if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN))
972 case NL80211_IFTYPE_MESH_POINT:
973 if (memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN)) {
978 * check for mesh DA must be done by driver as
979 * cfg80211 doesn't track the stations
992 if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0)
995 /* Transmit the Action frame as requested by user space */
996 return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, offchan,
997 channel_type, channel_type_valid,
998 wait, buf, len, no_cck, dont_wait_for_ack,
1002 bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf,
1003 size_t len, gfp_t gfp)
1005 struct wireless_dev *wdev = dev->ieee80211_ptr;
1006 struct wiphy *wiphy = wdev->wiphy;
1007 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1008 struct cfg80211_mgmt_registration *reg;
1009 const struct ieee80211_txrx_stypes *stypes =
1010 &wiphy->mgmt_stypes[wdev->iftype];
1011 struct ieee80211_mgmt *mgmt = (void *)buf;
1014 bool result = false;
1015 __le16 ftype = mgmt->frame_control &
1016 cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE);
1019 stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
1021 if (!(stypes->rx & BIT(stype)))
1024 data = buf + ieee80211_hdrlen(mgmt->frame_control);
1025 data_len = len - ieee80211_hdrlen(mgmt->frame_control);
1027 spin_lock_bh(&wdev->mgmt_registrations_lock);
1029 list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
1030 if (reg->frame_type != ftype)
1033 if (reg->match_len > data_len)
1036 if (memcmp(reg->match, data, reg->match_len))
1041 /* Indicate the received Action frame to user space */
1042 if (nl80211_send_mgmt(rdev, dev, reg->nlpid, freq,
1050 spin_unlock_bh(&wdev->mgmt_registrations_lock);
1054 EXPORT_SYMBOL(cfg80211_rx_mgmt);
1056 void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie,
1057 const u8 *buf, size_t len, bool ack, gfp_t gfp)
1059 struct wireless_dev *wdev = dev->ieee80211_ptr;
1060 struct wiphy *wiphy = wdev->wiphy;
1061 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1063 /* Indicate TX status of the Action frame to user space */
1064 nl80211_send_mgmt_tx_status(rdev, dev, cookie, buf, len, ack, gfp);
1066 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
1068 void cfg80211_cqm_rssi_notify(struct net_device *dev,
1069 enum nl80211_cqm_rssi_threshold_event rssi_event,
1072 struct wireless_dev *wdev = dev->ieee80211_ptr;
1073 struct wiphy *wiphy = wdev->wiphy;
1074 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1076 /* Indicate roaming trigger event to user space */
1077 nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp);
1079 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
1081 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
1082 const u8 *peer, u32 num_packets, gfp_t gfp)
1084 struct wireless_dev *wdev = dev->ieee80211_ptr;
1085 struct wiphy *wiphy = wdev->wiphy;
1086 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1088 /* Indicate roaming trigger event to user space */
1089 nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
1091 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
1093 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
1094 const u8 *replay_ctr, gfp_t gfp)
1096 struct wireless_dev *wdev = dev->ieee80211_ptr;
1097 struct wiphy *wiphy = wdev->wiphy;
1098 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1100 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
1102 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
1104 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
1105 const u8 *bssid, bool preauth, gfp_t gfp)
1107 struct wireless_dev *wdev = dev->ieee80211_ptr;
1108 struct wiphy *wiphy = wdev->wiphy;
1109 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
1111 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
1113 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
1115 bool cfg80211_rx_spurious_frame(struct net_device *dev,
1116 const u8 *addr, gfp_t gfp)
1118 struct wireless_dev *wdev = dev->ieee80211_ptr;
1120 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
1121 wdev->iftype != NL80211_IFTYPE_P2P_GO))
1124 return nl80211_unexpected_frame(dev, addr, gfp);
1126 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
1128 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
1129 const u8 *addr, gfp_t gfp)
1131 struct wireless_dev *wdev = dev->ieee80211_ptr;
1133 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
1134 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
1135 wdev->iftype != NL80211_IFTYPE_AP_VLAN))
1138 return nl80211_unexpected_4addr_frame(dev, addr, gfp);
1140 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);