2 * mac80211 configuration hooks for cfg80211
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 * This file is GPLv2 as found in COPYING.
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <net/cfg80211.h>
16 #include "ieee80211_i.h"
17 #include "driver-ops.h"
22 static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type,
25 struct vif_params *params)
27 struct ieee80211_local *local = wiphy_priv(wiphy);
28 struct net_device *dev;
29 struct ieee80211_sub_if_data *sdata;
32 err = ieee80211_if_add(local, name, &dev, type, params);
36 if (type == NL80211_IFTYPE_MONITOR && flags) {
37 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38 sdata->u.mntr_flags = *flags;
44 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
46 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
51 static int ieee80211_change_iface(struct wiphy *wiphy,
52 struct net_device *dev,
53 enum nl80211_iftype type, u32 *flags,
54 struct vif_params *params)
56 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 ret = ieee80211_if_change_type(sdata, type);
63 if (type == NL80211_IFTYPE_AP_VLAN &&
64 params && params->use_4addr == 0)
65 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
66 else if (type == NL80211_IFTYPE_STATION &&
67 params && params->use_4addr >= 0)
68 sdata->u.mgd.use_4addr = params->use_4addr;
70 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
71 struct ieee80211_local *local = sdata->local;
73 if (ieee80211_sdata_running(sdata)) {
75 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
76 * changed while the interface is up.
77 * Else we would need to add a lot of cruft
78 * to update everything:
79 * cooked_mntrs, monitor and all fif_* counters
80 * reconfigure hardware
82 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
83 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
86 ieee80211_adjust_monitor_flags(sdata, -1);
87 sdata->u.mntr_flags = *flags;
88 ieee80211_adjust_monitor_flags(sdata, 1);
90 ieee80211_configure_filter(local);
93 * Because the interface is down, ieee80211_do_stop
94 * and ieee80211_do_open take care of "everything"
95 * mentioned in the comment above.
97 sdata->u.mntr_flags = *flags;
104 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
105 u8 key_idx, bool pairwise, const u8 *mac_addr,
106 struct key_params *params)
108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
109 struct sta_info *sta = NULL;
110 struct ieee80211_key *key;
113 if (!ieee80211_sdata_running(sdata))
116 /* reject WEP and TKIP keys if WEP failed to initialize */
117 switch (params->cipher) {
118 case WLAN_CIPHER_SUITE_WEP40:
119 case WLAN_CIPHER_SUITE_TKIP:
120 case WLAN_CIPHER_SUITE_WEP104:
121 if (IS_ERR(sdata->local->wep_tx_tfm))
128 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
129 params->key, params->seq_len, params->seq);
134 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
136 mutex_lock(&sdata->local->sta_mtx);
139 if (ieee80211_vif_is_mesh(&sdata->vif))
140 sta = sta_info_get(sdata, mac_addr);
142 sta = sta_info_get_bss(sdata, mac_addr);
144 ieee80211_key_free(sdata->local, key);
150 err = ieee80211_key_link(key, sdata, sta);
152 ieee80211_key_free(sdata->local, key);
155 mutex_unlock(&sdata->local->sta_mtx);
160 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
161 u8 key_idx, bool pairwise, const u8 *mac_addr)
163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
164 struct ieee80211_local *local = sdata->local;
165 struct sta_info *sta;
166 struct ieee80211_key *key = NULL;
169 mutex_lock(&local->sta_mtx);
170 mutex_lock(&local->key_mtx);
175 sta = sta_info_get_bss(sdata, mac_addr);
180 key = key_mtx_dereference(local, sta->ptk);
182 key = key_mtx_dereference(local, sta->gtk[key_idx]);
184 key = key_mtx_dereference(local, sdata->keys[key_idx]);
191 __ieee80211_key_free(key);
195 mutex_unlock(&local->key_mtx);
196 mutex_unlock(&local->sta_mtx);
201 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
202 u8 key_idx, bool pairwise, const u8 *mac_addr,
204 void (*callback)(void *cookie,
205 struct key_params *params))
207 struct ieee80211_sub_if_data *sdata;
208 struct sta_info *sta = NULL;
210 struct key_params params;
211 struct ieee80211_key *key = NULL;
217 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
222 sta = sta_info_get_bss(sdata, mac_addr);
227 key = rcu_dereference(sta->ptk);
228 else if (key_idx < NUM_DEFAULT_KEYS)
229 key = rcu_dereference(sta->gtk[key_idx]);
231 key = rcu_dereference(sdata->keys[key_idx]);
236 memset(¶ms, 0, sizeof(params));
238 params.cipher = key->conf.cipher;
240 switch (key->conf.cipher) {
241 case WLAN_CIPHER_SUITE_TKIP:
242 iv32 = key->u.tkip.tx.iv32;
243 iv16 = key->u.tkip.tx.iv16;
245 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
246 drv_get_tkip_seq(sdata->local,
247 key->conf.hw_key_idx,
250 seq[0] = iv16 & 0xff;
251 seq[1] = (iv16 >> 8) & 0xff;
252 seq[2] = iv32 & 0xff;
253 seq[3] = (iv32 >> 8) & 0xff;
254 seq[4] = (iv32 >> 16) & 0xff;
255 seq[5] = (iv32 >> 24) & 0xff;
259 case WLAN_CIPHER_SUITE_CCMP:
260 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
270 case WLAN_CIPHER_SUITE_AES_CMAC:
271 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
283 params.key = key->conf.key;
284 params.key_len = key->conf.keylen;
286 callback(cookie, ¶ms);
294 static int ieee80211_config_default_key(struct wiphy *wiphy,
295 struct net_device *dev,
296 u8 key_idx, bool uni,
299 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
301 ieee80211_set_default_key(sdata, key_idx, uni, multi);
306 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
307 struct net_device *dev,
310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
312 ieee80211_set_default_mgmt_key(sdata, key_idx);
317 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
319 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
320 struct ieee80211_supported_band *sband;
321 sband = sta->local->hw.wiphy->bands[
322 sta->local->hw.conf.channel->band];
323 rate->legacy = sband->bitrates[idx].bitrate;
328 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
330 struct ieee80211_sub_if_data *sdata = sta->sdata;
331 struct timespec uptime;
333 sinfo->generation = sdata->local->sta_generation;
335 sinfo->filled = STATION_INFO_INACTIVE_TIME |
336 STATION_INFO_RX_BYTES |
337 STATION_INFO_TX_BYTES |
338 STATION_INFO_RX_PACKETS |
339 STATION_INFO_TX_PACKETS |
340 STATION_INFO_TX_RETRIES |
341 STATION_INFO_TX_FAILED |
342 STATION_INFO_TX_BITRATE |
343 STATION_INFO_RX_BITRATE |
344 STATION_INFO_RX_DROP_MISC |
345 STATION_INFO_BSS_PARAM |
346 STATION_INFO_CONNECTED_TIME;
348 do_posix_clock_monotonic_gettime(&uptime);
349 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
351 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
352 sinfo->rx_bytes = sta->rx_bytes;
353 sinfo->tx_bytes = sta->tx_bytes;
354 sinfo->rx_packets = sta->rx_packets;
355 sinfo->tx_packets = sta->tx_packets;
356 sinfo->tx_retries = sta->tx_retry_count;
357 sinfo->tx_failed = sta->tx_retry_failed;
358 sinfo->rx_dropped_misc = sta->rx_dropped;
360 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
361 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
362 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
363 sinfo->signal = (s8)sta->last_signal;
364 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
367 sinfo->txrate.flags = 0;
368 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
369 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
370 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
371 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
372 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
373 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
374 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
376 sinfo->rxrate.flags = 0;
377 if (sta->last_rx_rate_flag & RX_FLAG_HT)
378 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
379 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
380 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
381 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
382 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
383 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
385 if (ieee80211_vif_is_mesh(&sdata->vif)) {
386 #ifdef CONFIG_MAC80211_MESH
387 sinfo->filled |= STATION_INFO_LLID |
389 STATION_INFO_PLINK_STATE;
391 sinfo->llid = le16_to_cpu(sta->llid);
392 sinfo->plid = le16_to_cpu(sta->plid);
393 sinfo->plink_state = sta->plink_state;
397 sinfo->bss_param.flags = 0;
398 if (sdata->vif.bss_conf.use_cts_prot)
399 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
400 if (sdata->vif.bss_conf.use_short_preamble)
401 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
402 if (sdata->vif.bss_conf.use_short_slot)
403 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
404 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
405 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
409 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
410 int idx, u8 *mac, struct station_info *sinfo)
412 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
413 struct sta_info *sta;
418 sta = sta_info_get_by_idx(sdata, idx);
421 memcpy(mac, sta->sta.addr, ETH_ALEN);
422 sta_set_sinfo(sta, sinfo);
430 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
431 int idx, struct survey_info *survey)
433 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
435 return drv_get_survey(local, idx, survey);
438 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
439 u8 *mac, struct station_info *sinfo)
441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
442 struct sta_info *sta;
447 sta = sta_info_get_bss(sdata, mac);
450 sta_set_sinfo(sta, sinfo);
459 * This handles both adding a beacon and setting new beacon info
461 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
462 struct beacon_parameters *params)
464 struct beacon_data *new, *old;
465 int new_head_len, new_tail_len;
469 old = rtnl_dereference(sdata->u.ap.beacon);
471 /* head must not be zero-length */
472 if (params->head && !params->head_len)
476 * This is a kludge. beacon interval should really be part
477 * of the beacon information.
479 if (params->interval &&
480 (sdata->vif.bss_conf.beacon_int != params->interval)) {
481 sdata->vif.bss_conf.beacon_int = params->interval;
482 ieee80211_bss_info_change_notify(sdata,
483 BSS_CHANGED_BEACON_INT);
486 /* Need to have a beacon head if we don't have one yet */
487 if (!params->head && !old)
490 /* sorry, no way to start beaconing without dtim period */
491 if (!params->dtim_period && !old)
494 /* new or old head? */
496 new_head_len = params->head_len;
498 new_head_len = old->head_len;
500 /* new or old tail? */
501 if (params->tail || !old)
502 /* params->tail_len will be zero for !params->tail */
503 new_tail_len = params->tail_len;
505 new_tail_len = old->tail_len;
507 size = sizeof(*new) + new_head_len + new_tail_len;
509 new = kzalloc(size, GFP_KERNEL);
513 /* start filling the new info now */
515 /* new or old dtim period? */
516 if (params->dtim_period)
517 new->dtim_period = params->dtim_period;
519 new->dtim_period = old->dtim_period;
522 * pointers go into the block we allocated,
523 * memory is | beacon_data | head | tail |
525 new->head = ((u8 *) new) + sizeof(*new);
526 new->tail = new->head + new_head_len;
527 new->head_len = new_head_len;
528 new->tail_len = new_tail_len;
532 memcpy(new->head, params->head, new_head_len);
534 memcpy(new->head, old->head, new_head_len);
536 /* copy in optional tail */
538 memcpy(new->tail, params->tail, new_tail_len);
541 memcpy(new->tail, old->tail, new_tail_len);
543 sdata->vif.bss_conf.dtim_period = new->dtim_period;
545 rcu_assign_pointer(sdata->u.ap.beacon, new);
551 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
556 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
557 struct beacon_parameters *params)
559 struct ieee80211_sub_if_data *sdata;
560 struct beacon_data *old;
562 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
564 old = rtnl_dereference(sdata->u.ap.beacon);
568 return ieee80211_config_beacon(sdata, params);
571 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
572 struct beacon_parameters *params)
574 struct ieee80211_sub_if_data *sdata;
575 struct beacon_data *old;
577 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
579 old = rtnl_dereference(sdata->u.ap.beacon);
583 return ieee80211_config_beacon(sdata, params);
586 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
588 struct ieee80211_sub_if_data *sdata;
589 struct beacon_data *old;
591 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
593 old = rtnl_dereference(sdata->u.ap.beacon);
597 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
601 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
605 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
606 struct iapp_layer2_update {
607 u8 da[ETH_ALEN]; /* broadcast */
608 u8 sa[ETH_ALEN]; /* STA addr */
616 static void ieee80211_send_layer2_update(struct sta_info *sta)
618 struct iapp_layer2_update *msg;
621 /* Send Level 2 Update Frame to update forwarding tables in layer 2
624 skb = dev_alloc_skb(sizeof(*msg));
627 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
629 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
630 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
632 memset(msg->da, 0xff, ETH_ALEN);
633 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
636 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
637 msg->control = 0xaf; /* XID response lsb.1111F101.
638 * F=0 (no poll command; unsolicited frame) */
639 msg->xid_info[0] = 0x81; /* XID format identifier */
640 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
641 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
643 skb->dev = sta->sdata->dev;
644 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
645 memset(skb->cb, 0, sizeof(skb->cb));
649 static void sta_apply_parameters(struct ieee80211_local *local,
650 struct sta_info *sta,
651 struct station_parameters *params)
656 struct ieee80211_supported_band *sband;
657 struct ieee80211_sub_if_data *sdata = sta->sdata;
660 sband = local->hw.wiphy->bands[local->oper_channel->band];
662 spin_lock_irqsave(&sta->flaglock, flags);
663 mask = params->sta_flags_mask;
664 set = params->sta_flags_set;
666 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
667 sta->flags &= ~WLAN_STA_AUTHORIZED;
668 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
669 sta->flags |= WLAN_STA_AUTHORIZED;
672 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
673 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
674 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
675 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
678 if (mask & BIT(NL80211_STA_FLAG_WME)) {
679 sta->flags &= ~WLAN_STA_WME;
680 sta->sta.wme = false;
681 if (set & BIT(NL80211_STA_FLAG_WME)) {
682 sta->flags |= WLAN_STA_WME;
687 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
688 sta->flags &= ~WLAN_STA_MFP;
689 if (set & BIT(NL80211_STA_FLAG_MFP))
690 sta->flags |= WLAN_STA_MFP;
693 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
694 sta->flags &= ~WLAN_STA_AUTH;
695 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
696 sta->flags |= WLAN_STA_AUTH;
698 spin_unlock_irqrestore(&sta->flaglock, flags);
701 * cfg80211 validates this (1-2007) and allows setting the AID
702 * only when creating a new station entry
705 sta->sta.aid = params->aid;
708 * FIXME: updating the following information is racy when this
709 * function is called from ieee80211_change_station().
710 * However, all this information should be static so
711 * maybe we should just reject attemps to change it.
714 if (params->listen_interval >= 0)
715 sta->listen_interval = params->listen_interval;
717 if (params->supported_rates) {
720 for (i = 0; i < params->supported_rates_len; i++) {
721 int rate = (params->supported_rates[i] & 0x7f) * 5;
722 for (j = 0; j < sband->n_bitrates; j++) {
723 if (sband->bitrates[j].bitrate == rate)
727 sta->sta.supp_rates[local->oper_channel->band] = rates;
731 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
735 if (ieee80211_vif_is_mesh(&sdata->vif)) {
736 #ifdef CONFIG_MAC80211_MESH
737 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
738 switch (params->plink_state) {
739 case NL80211_PLINK_LISTEN:
740 case NL80211_PLINK_ESTAB:
741 case NL80211_PLINK_BLOCKED:
742 sta->plink_state = params->plink_state;
749 switch (params->plink_action) {
750 case PLINK_ACTION_OPEN:
751 mesh_plink_open(sta);
753 case PLINK_ACTION_BLOCK:
754 mesh_plink_block(sta);
761 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
762 u8 *mac, struct station_parameters *params)
764 struct ieee80211_local *local = wiphy_priv(wiphy);
765 struct sta_info *sta;
766 struct ieee80211_sub_if_data *sdata;
771 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
773 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
774 sdata->vif.type != NL80211_IFTYPE_AP)
777 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
779 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
782 if (is_multicast_ether_addr(mac))
785 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
789 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
791 sta_apply_parameters(local, sta, params);
793 rate_control_rate_init(sta);
795 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
796 sdata->vif.type == NL80211_IFTYPE_AP;
798 err = sta_info_insert_rcu(sta);
805 ieee80211_send_layer2_update(sta);
812 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
815 struct ieee80211_local *local = wiphy_priv(wiphy);
816 struct ieee80211_sub_if_data *sdata;
818 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
821 return sta_info_destroy_addr_bss(sdata, mac);
823 sta_info_flush(local, sdata);
827 static int ieee80211_change_station(struct wiphy *wiphy,
828 struct net_device *dev,
830 struct station_parameters *params)
832 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
833 struct ieee80211_local *local = wiphy_priv(wiphy);
834 struct sta_info *sta;
835 struct ieee80211_sub_if_data *vlansdata;
839 sta = sta_info_get_bss(sdata, mac);
845 if (params->vlan && params->vlan != sta->sdata->dev) {
846 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
848 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
849 vlansdata->vif.type != NL80211_IFTYPE_AP) {
854 if (params->vlan->ieee80211_ptr->use_4addr) {
855 if (vlansdata->u.vlan.sta) {
860 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
863 sta->sdata = vlansdata;
864 ieee80211_send_layer2_update(sta);
867 sta_apply_parameters(local, sta, params);
871 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
872 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
873 ieee80211_recalc_ps(local, -1);
878 #ifdef CONFIG_MAC80211_MESH
879 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
880 u8 *dst, u8 *next_hop)
882 struct ieee80211_sub_if_data *sdata;
883 struct mesh_path *mpath;
884 struct sta_info *sta;
887 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
890 sta = sta_info_get(sdata, next_hop);
896 err = mesh_path_add(dst, sdata);
902 mpath = mesh_path_lookup(dst, sdata);
907 mesh_path_fix_nexthop(mpath, sta);
913 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
916 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
919 return mesh_path_del(dst, sdata);
921 mesh_path_flush(sdata);
925 static int ieee80211_change_mpath(struct wiphy *wiphy,
926 struct net_device *dev,
927 u8 *dst, u8 *next_hop)
929 struct ieee80211_sub_if_data *sdata;
930 struct mesh_path *mpath;
931 struct sta_info *sta;
933 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
937 sta = sta_info_get(sdata, next_hop);
943 mpath = mesh_path_lookup(dst, sdata);
949 mesh_path_fix_nexthop(mpath, sta);
955 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
956 struct mpath_info *pinfo)
958 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
961 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
963 memset(next_hop, 0, ETH_ALEN);
965 pinfo->generation = mesh_paths_generation;
967 pinfo->filled = MPATH_INFO_FRAME_QLEN |
971 MPATH_INFO_DISCOVERY_TIMEOUT |
972 MPATH_INFO_DISCOVERY_RETRIES |
975 pinfo->frame_qlen = mpath->frame_queue.qlen;
976 pinfo->sn = mpath->sn;
977 pinfo->metric = mpath->metric;
978 if (time_before(jiffies, mpath->exp_time))
979 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
980 pinfo->discovery_timeout =
981 jiffies_to_msecs(mpath->discovery_timeout);
982 pinfo->discovery_retries = mpath->discovery_retries;
984 if (mpath->flags & MESH_PATH_ACTIVE)
985 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
986 if (mpath->flags & MESH_PATH_RESOLVING)
987 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
988 if (mpath->flags & MESH_PATH_SN_VALID)
989 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
990 if (mpath->flags & MESH_PATH_FIXED)
991 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
992 if (mpath->flags & MESH_PATH_RESOLVING)
993 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
995 pinfo->flags = mpath->flags;
998 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
999 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1002 struct ieee80211_sub_if_data *sdata;
1003 struct mesh_path *mpath;
1005 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1008 mpath = mesh_path_lookup(dst, sdata);
1013 memcpy(dst, mpath->dst, ETH_ALEN);
1014 mpath_set_pinfo(mpath, next_hop, pinfo);
1019 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1020 int idx, u8 *dst, u8 *next_hop,
1021 struct mpath_info *pinfo)
1023 struct ieee80211_sub_if_data *sdata;
1024 struct mesh_path *mpath;
1026 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1029 mpath = mesh_path_lookup_by_idx(idx, sdata);
1034 memcpy(dst, mpath->dst, ETH_ALEN);
1035 mpath_set_pinfo(mpath, next_hop, pinfo);
1040 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1041 struct net_device *dev,
1042 struct mesh_config *conf)
1044 struct ieee80211_sub_if_data *sdata;
1045 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1047 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1051 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1053 return (mask >> (parm-1)) & 0x1;
1056 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1057 const struct mesh_setup *setup)
1062 /* allocate information elements */
1066 if (setup->ie_len) {
1067 new_ie = kmemdup(setup->ie, setup->ie_len,
1072 ifmsh->ie_len = setup->ie_len;
1076 /* now copy the rest of the setup parameters */
1077 ifmsh->mesh_id_len = setup->mesh_id_len;
1078 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1079 ifmsh->mesh_pp_id = setup->path_sel_proto;
1080 ifmsh->mesh_pm_id = setup->path_metric;
1081 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1082 if (setup->is_authenticated)
1083 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1084 if (setup->is_secure)
1085 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1090 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1091 struct net_device *dev, u32 mask,
1092 const struct mesh_config *nconf)
1094 struct mesh_config *conf;
1095 struct ieee80211_sub_if_data *sdata;
1096 struct ieee80211_if_mesh *ifmsh;
1098 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1099 ifmsh = &sdata->u.mesh;
1101 /* Set the config options which we are interested in setting */
1102 conf = &(sdata->u.mesh.mshcfg);
1103 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1104 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1105 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1106 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1107 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1108 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1109 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1110 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1111 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1112 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1113 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1114 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1115 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1116 conf->dot11MeshTTL = nconf->element_ttl;
1117 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1118 conf->auto_open_plinks = nconf->auto_open_plinks;
1119 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1120 conf->dot11MeshHWMPmaxPREQretries =
1121 nconf->dot11MeshHWMPmaxPREQretries;
1122 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1123 conf->path_refresh_time = nconf->path_refresh_time;
1124 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1125 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1126 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1127 conf->dot11MeshHWMPactivePathTimeout =
1128 nconf->dot11MeshHWMPactivePathTimeout;
1129 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1130 conf->dot11MeshHWMPpreqMinInterval =
1131 nconf->dot11MeshHWMPpreqMinInterval;
1132 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1134 conf->dot11MeshHWMPnetDiameterTraversalTime =
1135 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1136 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1137 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1138 ieee80211_mesh_root_setup(ifmsh);
1143 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1144 const struct mesh_config *conf,
1145 const struct mesh_setup *setup)
1147 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1148 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1151 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1152 err = copy_mesh_setup(ifmsh, setup);
1155 ieee80211_start_mesh(sdata);
1160 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1162 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1164 ieee80211_stop_mesh(sdata);
1170 static int ieee80211_change_bss(struct wiphy *wiphy,
1171 struct net_device *dev,
1172 struct bss_parameters *params)
1174 struct ieee80211_sub_if_data *sdata;
1177 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1179 if (params->use_cts_prot >= 0) {
1180 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1181 changed |= BSS_CHANGED_ERP_CTS_PROT;
1183 if (params->use_short_preamble >= 0) {
1184 sdata->vif.bss_conf.use_short_preamble =
1185 params->use_short_preamble;
1186 changed |= BSS_CHANGED_ERP_PREAMBLE;
1189 if (!sdata->vif.bss_conf.use_short_slot &&
1190 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1191 sdata->vif.bss_conf.use_short_slot = true;
1192 changed |= BSS_CHANGED_ERP_SLOT;
1195 if (params->use_short_slot_time >= 0) {
1196 sdata->vif.bss_conf.use_short_slot =
1197 params->use_short_slot_time;
1198 changed |= BSS_CHANGED_ERP_SLOT;
1201 if (params->basic_rates) {
1204 struct ieee80211_local *local = wiphy_priv(wiphy);
1205 struct ieee80211_supported_band *sband =
1206 wiphy->bands[local->oper_channel->band];
1208 for (i = 0; i < params->basic_rates_len; i++) {
1209 int rate = (params->basic_rates[i] & 0x7f) * 5;
1210 for (j = 0; j < sband->n_bitrates; j++) {
1211 if (sband->bitrates[j].bitrate == rate)
1215 sdata->vif.bss_conf.basic_rates = rates;
1216 changed |= BSS_CHANGED_BASIC_RATES;
1219 if (params->ap_isolate >= 0) {
1220 if (params->ap_isolate)
1221 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1223 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1226 if (params->ht_opmode >= 0) {
1227 sdata->vif.bss_conf.ht_operation_mode =
1228 (u16) params->ht_opmode;
1229 changed |= BSS_CHANGED_HT;
1232 ieee80211_bss_info_change_notify(sdata, changed);
1237 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1238 struct ieee80211_txq_params *params)
1240 struct ieee80211_local *local = wiphy_priv(wiphy);
1241 struct ieee80211_tx_queue_params p;
1243 if (!local->ops->conf_tx)
1246 memset(&p, 0, sizeof(p));
1247 p.aifs = params->aifs;
1248 p.cw_max = params->cwmax;
1249 p.cw_min = params->cwmin;
1250 p.txop = params->txop;
1253 * Setting tx queue params disables u-apsd because it's only
1254 * called in master mode.
1258 if (params->queue >= local->hw.queues)
1261 local->tx_conf[params->queue] = p;
1262 if (drv_conf_tx(local, params->queue, &p)) {
1263 wiphy_debug(local->hw.wiphy,
1264 "failed to set TX queue parameters for queue %d\n",
1272 static int ieee80211_set_channel(struct wiphy *wiphy,
1273 struct net_device *netdev,
1274 struct ieee80211_channel *chan,
1275 enum nl80211_channel_type channel_type)
1277 struct ieee80211_local *local = wiphy_priv(wiphy);
1278 struct ieee80211_sub_if_data *sdata = NULL;
1279 struct ieee80211_channel *old_oper;
1280 enum nl80211_channel_type old_oper_type;
1281 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1284 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1286 switch (ieee80211_get_channel_mode(local, NULL)) {
1287 case CHAN_MODE_HOPPING:
1289 case CHAN_MODE_FIXED:
1290 if (local->oper_channel != chan)
1292 if (!sdata && local->_oper_channel_type == channel_type)
1295 case CHAN_MODE_UNDEFINED:
1300 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1301 old_oper_type = local->_oper_channel_type;
1303 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1306 old_oper = local->oper_channel;
1307 local->oper_channel = chan;
1309 /* Update driver if changes were actually made. */
1310 if ((old_oper != local->oper_channel) ||
1311 (old_oper_type != local->_oper_channel_type))
1312 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1314 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1315 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1316 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1322 static int ieee80211_suspend(struct wiphy *wiphy,
1323 struct cfg80211_wowlan *wowlan)
1325 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1328 static int ieee80211_resume(struct wiphy *wiphy)
1330 return __ieee80211_resume(wiphy_priv(wiphy));
1333 #define ieee80211_suspend NULL
1334 #define ieee80211_resume NULL
1337 static int ieee80211_scan(struct wiphy *wiphy,
1338 struct net_device *dev,
1339 struct cfg80211_scan_request *req)
1341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1343 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1344 case NL80211_IFTYPE_STATION:
1345 case NL80211_IFTYPE_ADHOC:
1346 case NL80211_IFTYPE_MESH_POINT:
1347 case NL80211_IFTYPE_P2P_CLIENT:
1349 case NL80211_IFTYPE_P2P_GO:
1350 if (sdata->local->ops->hw_scan)
1353 * FIXME: implement NoA while scanning in software,
1354 * for now fall through to allow scanning only when
1355 * beaconing hasn't been configured yet
1357 case NL80211_IFTYPE_AP:
1358 if (sdata->u.ap.beacon)
1365 return ieee80211_request_scan(sdata, req);
1369 ieee80211_sched_scan_start(struct wiphy *wiphy,
1370 struct net_device *dev,
1371 struct cfg80211_sched_scan_request *req)
1373 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1375 if (!sdata->local->ops->sched_scan_start)
1378 return ieee80211_request_sched_scan_start(sdata, req);
1382 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1386 if (!sdata->local->ops->sched_scan_stop)
1389 return ieee80211_request_sched_scan_stop(sdata);
1392 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1393 struct cfg80211_auth_request *req)
1395 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1398 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1399 struct cfg80211_assoc_request *req)
1401 struct ieee80211_local *local = wiphy_priv(wiphy);
1402 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1404 switch (ieee80211_get_channel_mode(local, sdata)) {
1405 case CHAN_MODE_HOPPING:
1407 case CHAN_MODE_FIXED:
1408 if (local->oper_channel == req->bss->channel)
1411 case CHAN_MODE_UNDEFINED:
1415 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1418 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1419 struct cfg80211_deauth_request *req,
1422 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1426 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1427 struct cfg80211_disassoc_request *req,
1430 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1434 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1435 struct cfg80211_ibss_params *params)
1437 struct ieee80211_local *local = wiphy_priv(wiphy);
1438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1440 switch (ieee80211_get_channel_mode(local, sdata)) {
1441 case CHAN_MODE_HOPPING:
1443 case CHAN_MODE_FIXED:
1444 if (!params->channel_fixed)
1446 if (local->oper_channel == params->channel)
1449 case CHAN_MODE_UNDEFINED:
1453 return ieee80211_ibss_join(sdata, params);
1456 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1458 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1460 return ieee80211_ibss_leave(sdata);
1463 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1465 struct ieee80211_local *local = wiphy_priv(wiphy);
1468 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1469 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1475 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1476 err = drv_set_coverage_class(local, wiphy->coverage_class);
1482 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1483 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1489 if (changed & WIPHY_PARAM_RETRY_SHORT)
1490 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1491 if (changed & WIPHY_PARAM_RETRY_LONG)
1492 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1494 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1495 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1500 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1501 enum nl80211_tx_power_setting type, int mbm)
1503 struct ieee80211_local *local = wiphy_priv(wiphy);
1504 struct ieee80211_channel *chan = local->hw.conf.channel;
1508 case NL80211_TX_POWER_AUTOMATIC:
1509 local->user_power_level = -1;
1511 case NL80211_TX_POWER_LIMITED:
1512 if (mbm < 0 || (mbm % 100))
1514 local->user_power_level = MBM_TO_DBM(mbm);
1516 case NL80211_TX_POWER_FIXED:
1517 if (mbm < 0 || (mbm % 100))
1519 /* TODO: move to cfg80211 when it knows the channel */
1520 if (MBM_TO_DBM(mbm) > chan->max_power)
1522 local->user_power_level = MBM_TO_DBM(mbm);
1526 ieee80211_hw_config(local, changes);
1531 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1533 struct ieee80211_local *local = wiphy_priv(wiphy);
1535 *dbm = local->hw.conf.power_level;
1540 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1545 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1550 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1552 struct ieee80211_local *local = wiphy_priv(wiphy);
1554 drv_rfkill_poll(local);
1557 #ifdef CONFIG_NL80211_TESTMODE
1558 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1560 struct ieee80211_local *local = wiphy_priv(wiphy);
1562 if (!local->ops->testmode_cmd)
1565 return local->ops->testmode_cmd(&local->hw, data, len);
1568 static int ieee80211_testmode_dump(struct wiphy *wiphy,
1569 struct sk_buff *skb,
1570 struct netlink_callback *cb,
1571 void *data, int len)
1573 struct ieee80211_local *local = wiphy_priv(wiphy);
1575 if (!local->ops->testmode_dump)
1578 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1582 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1583 enum ieee80211_smps_mode smps_mode)
1586 enum ieee80211_smps_mode old_req;
1589 lockdep_assert_held(&sdata->u.mgd.mtx);
1591 old_req = sdata->u.mgd.req_smps;
1592 sdata->u.mgd.req_smps = smps_mode;
1594 if (old_req == smps_mode &&
1595 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1599 * If not associated, or current association is not an HT
1600 * association, there's no need to send an action frame.
1602 if (!sdata->u.mgd.associated ||
1603 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1604 mutex_lock(&sdata->local->iflist_mtx);
1605 ieee80211_recalc_smps(sdata->local);
1606 mutex_unlock(&sdata->local->iflist_mtx);
1610 ap = sdata->u.mgd.associated->bssid;
1612 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1613 if (sdata->u.mgd.powersave)
1614 smps_mode = IEEE80211_SMPS_DYNAMIC;
1616 smps_mode = IEEE80211_SMPS_OFF;
1619 /* send SM PS frame to AP */
1620 err = ieee80211_send_smps_action(sdata, smps_mode,
1623 sdata->u.mgd.req_smps = old_req;
1628 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1629 bool enabled, int timeout)
1631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1632 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1634 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1637 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1640 if (enabled == sdata->u.mgd.powersave &&
1641 timeout == local->dynamic_ps_forced_timeout)
1644 sdata->u.mgd.powersave = enabled;
1645 local->dynamic_ps_forced_timeout = timeout;
1647 /* no change, but if automatic follow powersave */
1648 mutex_lock(&sdata->u.mgd.mtx);
1649 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1650 mutex_unlock(&sdata->u.mgd.mtx);
1652 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1653 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1655 ieee80211_recalc_ps(local, -1);
1660 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1661 struct net_device *dev,
1662 s32 rssi_thold, u32 rssi_hyst)
1664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1665 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1666 struct ieee80211_vif *vif = &sdata->vif;
1667 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1669 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1670 rssi_hyst == bss_conf->cqm_rssi_hyst)
1673 bss_conf->cqm_rssi_thold = rssi_thold;
1674 bss_conf->cqm_rssi_hyst = rssi_hyst;
1676 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1677 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1682 /* tell the driver upon association, unless already associated */
1683 if (sdata->u.mgd.associated)
1684 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1689 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1690 struct net_device *dev,
1692 const struct cfg80211_bitrate_mask *mask)
1694 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1698 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1699 ret = drv_set_bitrate_mask(local, sdata, mask);
1704 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1705 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1710 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1711 struct net_device *dev,
1712 struct ieee80211_channel *chan,
1713 enum nl80211_channel_type chantype,
1714 unsigned int duration, u64 *cookie)
1719 lockdep_assert_held(&local->mtx);
1721 if (local->hw_roc_cookie)
1723 /* must be nonzero */
1724 random_cookie = random32() | 1;
1726 *cookie = random_cookie;
1727 local->hw_roc_dev = dev;
1728 local->hw_roc_cookie = random_cookie;
1729 local->hw_roc_channel = chan;
1730 local->hw_roc_channel_type = chantype;
1731 local->hw_roc_duration = duration;
1732 ret = drv_remain_on_channel(local, chan, chantype, duration);
1734 local->hw_roc_channel = NULL;
1735 local->hw_roc_cookie = 0;
1741 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1742 struct net_device *dev,
1743 struct ieee80211_channel *chan,
1744 enum nl80211_channel_type channel_type,
1745 unsigned int duration,
1748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749 struct ieee80211_local *local = sdata->local;
1751 if (local->ops->remain_on_channel) {
1754 mutex_lock(&local->mtx);
1755 ret = ieee80211_remain_on_channel_hw(local, dev,
1758 local->hw_roc_for_tx = false;
1759 mutex_unlock(&local->mtx);
1764 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1768 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1773 lockdep_assert_held(&local->mtx);
1775 if (local->hw_roc_cookie != cookie)
1778 ret = drv_cancel_remain_on_channel(local);
1782 local->hw_roc_cookie = 0;
1783 local->hw_roc_channel = NULL;
1785 ieee80211_recalc_idle(local);
1790 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1791 struct net_device *dev,
1794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1795 struct ieee80211_local *local = sdata->local;
1797 if (local->ops->cancel_remain_on_channel) {
1800 mutex_lock(&local->mtx);
1801 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1802 mutex_unlock(&local->mtx);
1807 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1810 static enum work_done_result
1811 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1814 * Use the data embedded in the work struct for reporting
1815 * here so if the driver mangled the SKB before dropping
1816 * it (which is the only way we really should get here)
1817 * then we don't report mangled data.
1819 * If there was no wait time, then by the time we get here
1820 * the driver will likely not have reported the status yet,
1821 * so in that case userspace will have to deal with it.
1824 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1825 cfg80211_mgmt_tx_status(wk->sdata->dev,
1826 (unsigned long) wk->offchan_tx.frame,
1827 wk->ie, wk->ie_len, false, GFP_KERNEL);
1829 return WORK_DONE_DESTROY;
1832 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1833 struct ieee80211_channel *chan, bool offchan,
1834 enum nl80211_channel_type channel_type,
1835 bool channel_type_valid, unsigned int wait,
1836 const u8 *buf, size_t len, u64 *cookie)
1838 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1839 struct ieee80211_local *local = sdata->local;
1840 struct sk_buff *skb;
1841 struct sta_info *sta;
1842 struct ieee80211_work *wk;
1843 const struct ieee80211_mgmt *mgmt = (void *)buf;
1844 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1845 IEEE80211_TX_CTL_REQ_TX_STATUS;
1846 bool is_offchan = false;
1848 /* Check that we are on the requested channel for transmission */
1849 if (chan != local->tmp_channel &&
1850 chan != local->oper_channel)
1852 if (channel_type_valid &&
1853 (channel_type != local->tmp_channel_type &&
1854 channel_type != local->_oper_channel_type))
1857 if (chan == local->hw_roc_channel) {
1858 /* TODO: check channel type? */
1860 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1863 if (is_offchan && !offchan)
1866 switch (sdata->vif.type) {
1867 case NL80211_IFTYPE_ADHOC:
1868 case NL80211_IFTYPE_AP:
1869 case NL80211_IFTYPE_AP_VLAN:
1870 case NL80211_IFTYPE_P2P_GO:
1871 case NL80211_IFTYPE_MESH_POINT:
1872 if (!ieee80211_is_action(mgmt->frame_control) ||
1873 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1876 sta = sta_info_get(sdata, mgmt->da);
1881 case NL80211_IFTYPE_STATION:
1882 case NL80211_IFTYPE_P2P_CLIENT:
1888 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1891 skb_reserve(skb, local->hw.extra_tx_headroom);
1893 memcpy(skb_put(skb, len), buf, len);
1895 IEEE80211_SKB_CB(skb)->flags = flags;
1897 skb->dev = sdata->dev;
1899 *cookie = (unsigned long) skb;
1901 if (is_offchan && local->ops->offchannel_tx) {
1904 IEEE80211_SKB_CB(skb)->band = chan->band;
1906 mutex_lock(&local->mtx);
1908 if (local->hw_offchan_tx_cookie) {
1909 mutex_unlock(&local->mtx);
1913 /* TODO: bitrate control, TX processing? */
1914 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1917 local->hw_offchan_tx_cookie = *cookie;
1918 mutex_unlock(&local->mtx);
1921 * Allow driver to return 1 to indicate it wants to have the
1922 * frame transmitted with a remain_on_channel + regular TX.
1928 if (is_offchan && local->ops->remain_on_channel) {
1929 unsigned int duration;
1932 mutex_lock(&local->mtx);
1934 * If the duration is zero, then the driver
1935 * wouldn't actually do anything. Set it to
1938 * TODO: cancel the off-channel operation
1939 * when we get the SKB's TX status and
1940 * the wait time was zero before.
1945 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1950 mutex_unlock(&local->mtx);
1954 local->hw_roc_for_tx = true;
1955 local->hw_roc_duration = wait;
1958 * queue up frame for transmission after
1959 * ieee80211_ready_on_channel call
1962 /* modify cookie to prevent API mismatches */
1964 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1965 local->hw_roc_skb = skb;
1966 local->hw_roc_skb_for_status = skb;
1967 mutex_unlock(&local->mtx);
1973 * Can transmit right away if the channel was the
1974 * right one and there's no wait involved... If a
1975 * wait is involved, we might otherwise not be on
1976 * the right channel for long enough!
1978 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1979 ieee80211_tx_skb(sdata, skb);
1983 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1989 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1991 wk->chan_type = channel_type;
1993 wk->done = ieee80211_offchan_tx_done;
1994 wk->offchan_tx.frame = skb;
1995 wk->offchan_tx.wait = wait;
1997 memcpy(wk->ie, buf, len);
1999 ieee80211_add_work(wk);
2003 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2004 struct net_device *dev,
2007 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2008 struct ieee80211_local *local = sdata->local;
2009 struct ieee80211_work *wk;
2012 mutex_lock(&local->mtx);
2014 if (local->ops->offchannel_tx_cancel_wait &&
2015 local->hw_offchan_tx_cookie == cookie) {
2016 ret = drv_offchannel_tx_cancel_wait(local);
2019 local->hw_offchan_tx_cookie = 0;
2021 mutex_unlock(&local->mtx);
2026 if (local->ops->cancel_remain_on_channel) {
2028 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2031 kfree_skb(local->hw_roc_skb);
2032 local->hw_roc_skb = NULL;
2033 local->hw_roc_skb_for_status = NULL;
2036 mutex_unlock(&local->mtx);
2041 list_for_each_entry(wk, &local->work_list, list) {
2042 if (wk->sdata != sdata)
2045 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2048 if (cookie != (unsigned long) wk->offchan_tx.frame)
2051 wk->timeout = jiffies;
2053 ieee80211_queue_work(&local->hw, &local->work_work);
2057 mutex_unlock(&local->mtx);
2062 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2063 struct net_device *dev,
2064 u16 frame_type, bool reg)
2066 struct ieee80211_local *local = wiphy_priv(wiphy);
2068 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2072 local->probe_req_reg++;
2074 local->probe_req_reg--;
2076 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2079 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2081 struct ieee80211_local *local = wiphy_priv(wiphy);
2086 return drv_set_antenna(local, tx_ant, rx_ant);
2089 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2091 struct ieee80211_local *local = wiphy_priv(wiphy);
2093 return drv_get_antenna(local, tx_ant, rx_ant);
2096 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2098 struct ieee80211_local *local = wiphy_priv(wiphy);
2100 return drv_set_ringparam(local, tx, rx);
2103 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2104 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2106 struct ieee80211_local *local = wiphy_priv(wiphy);
2108 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2111 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2112 struct net_device *dev,
2113 struct cfg80211_gtk_rekey_data *data)
2115 struct ieee80211_local *local = wiphy_priv(wiphy);
2116 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2118 if (!local->ops->set_rekey_data)
2121 drv_set_rekey_data(local, sdata, data);
2126 struct cfg80211_ops mac80211_config_ops = {
2127 .add_virtual_intf = ieee80211_add_iface,
2128 .del_virtual_intf = ieee80211_del_iface,
2129 .change_virtual_intf = ieee80211_change_iface,
2130 .add_key = ieee80211_add_key,
2131 .del_key = ieee80211_del_key,
2132 .get_key = ieee80211_get_key,
2133 .set_default_key = ieee80211_config_default_key,
2134 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2135 .add_beacon = ieee80211_add_beacon,
2136 .set_beacon = ieee80211_set_beacon,
2137 .del_beacon = ieee80211_del_beacon,
2138 .add_station = ieee80211_add_station,
2139 .del_station = ieee80211_del_station,
2140 .change_station = ieee80211_change_station,
2141 .get_station = ieee80211_get_station,
2142 .dump_station = ieee80211_dump_station,
2143 .dump_survey = ieee80211_dump_survey,
2144 #ifdef CONFIG_MAC80211_MESH
2145 .add_mpath = ieee80211_add_mpath,
2146 .del_mpath = ieee80211_del_mpath,
2147 .change_mpath = ieee80211_change_mpath,
2148 .get_mpath = ieee80211_get_mpath,
2149 .dump_mpath = ieee80211_dump_mpath,
2150 .update_mesh_config = ieee80211_update_mesh_config,
2151 .get_mesh_config = ieee80211_get_mesh_config,
2152 .join_mesh = ieee80211_join_mesh,
2153 .leave_mesh = ieee80211_leave_mesh,
2155 .change_bss = ieee80211_change_bss,
2156 .set_txq_params = ieee80211_set_txq_params,
2157 .set_channel = ieee80211_set_channel,
2158 .suspend = ieee80211_suspend,
2159 .resume = ieee80211_resume,
2160 .scan = ieee80211_scan,
2161 .sched_scan_start = ieee80211_sched_scan_start,
2162 .sched_scan_stop = ieee80211_sched_scan_stop,
2163 .auth = ieee80211_auth,
2164 .assoc = ieee80211_assoc,
2165 .deauth = ieee80211_deauth,
2166 .disassoc = ieee80211_disassoc,
2167 .join_ibss = ieee80211_join_ibss,
2168 .leave_ibss = ieee80211_leave_ibss,
2169 .set_wiphy_params = ieee80211_set_wiphy_params,
2170 .set_tx_power = ieee80211_set_tx_power,
2171 .get_tx_power = ieee80211_get_tx_power,
2172 .set_wds_peer = ieee80211_set_wds_peer,
2173 .rfkill_poll = ieee80211_rfkill_poll,
2174 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2175 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
2176 .set_power_mgmt = ieee80211_set_power_mgmt,
2177 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2178 .remain_on_channel = ieee80211_remain_on_channel,
2179 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2180 .mgmt_tx = ieee80211_mgmt_tx,
2181 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2182 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2183 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2184 .set_antenna = ieee80211_set_antenna,
2185 .get_antenna = ieee80211_get_antenna,
2186 .set_ringparam = ieee80211_set_ringparam,
2187 .get_ringparam = ieee80211_get_ringparam,
2188 .set_rekey_data = ieee80211_set_rekey_data,