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 bool nl80211_type_check(enum nl80211_iftype type)
25 case NL80211_IFTYPE_ADHOC:
26 case NL80211_IFTYPE_STATION:
27 case NL80211_IFTYPE_MONITOR:
28 #ifdef CONFIG_MAC80211_MESH
29 case NL80211_IFTYPE_MESH_POINT:
31 case NL80211_IFTYPE_AP:
32 case NL80211_IFTYPE_AP_VLAN:
33 case NL80211_IFTYPE_WDS:
40 static bool nl80211_params_check(enum nl80211_iftype type,
41 struct vif_params *params)
43 if (!nl80211_type_check(type))
49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
50 enum nl80211_iftype type, u32 *flags,
51 struct vif_params *params)
53 struct ieee80211_local *local = wiphy_priv(wiphy);
54 struct net_device *dev;
55 struct ieee80211_sub_if_data *sdata;
58 if (!nl80211_params_check(type, params))
61 err = ieee80211_if_add(local, name, &dev, type, params);
62 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
65 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66 sdata->u.mntr_flags = *flags;
70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
72 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
77 static int ieee80211_change_iface(struct wiphy *wiphy,
78 struct net_device *dev,
79 enum nl80211_iftype type, u32 *flags,
80 struct vif_params *params)
82 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
85 if (ieee80211_sdata_running(sdata))
88 if (!nl80211_params_check(type, params))
91 ret = ieee80211_if_change_type(sdata, type);
95 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
96 ieee80211_sdata_set_mesh_id(sdata,
100 if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
103 if (type == NL80211_IFTYPE_AP_VLAN &&
104 params && params->use_4addr == 0)
105 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
106 else if (type == NL80211_IFTYPE_STATION &&
107 params && params->use_4addr >= 0)
108 sdata->u.mgd.use_4addr = params->use_4addr;
110 sdata->u.mntr_flags = *flags;
114 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
115 u8 key_idx, const u8 *mac_addr,
116 struct key_params *params)
118 struct ieee80211_sub_if_data *sdata;
119 struct sta_info *sta = NULL;
120 enum ieee80211_key_alg alg;
121 struct ieee80211_key *key;
124 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126 switch (params->cipher) {
127 case WLAN_CIPHER_SUITE_WEP40:
128 case WLAN_CIPHER_SUITE_WEP104:
131 case WLAN_CIPHER_SUITE_TKIP:
134 case WLAN_CIPHER_SUITE_CCMP:
137 case WLAN_CIPHER_SUITE_AES_CMAC:
144 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
145 params->seq_len, params->seq);
152 sta = sta_info_get_bss(sdata, mac_addr);
154 ieee80211_key_free(key);
160 ieee80211_key_link(key, sdata, sta);
169 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
170 u8 key_idx, const u8 *mac_addr)
172 struct ieee80211_sub_if_data *sdata;
173 struct sta_info *sta;
176 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
183 sta = sta_info_get_bss(sdata, mac_addr);
188 ieee80211_key_free(sta->key);
196 if (!sdata->keys[key_idx]) {
201 ieee80211_key_free(sdata->keys[key_idx]);
202 WARN_ON(sdata->keys[key_idx]);
211 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
212 u8 key_idx, const u8 *mac_addr, void *cookie,
213 void (*callback)(void *cookie,
214 struct key_params *params))
216 struct ieee80211_sub_if_data *sdata;
217 struct sta_info *sta = NULL;
219 struct key_params params;
220 struct ieee80211_key *key;
225 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
230 sta = sta_info_get_bss(sdata, mac_addr);
236 key = sdata->keys[key_idx];
241 memset(¶ms, 0, sizeof(params));
243 switch (key->conf.alg) {
245 params.cipher = WLAN_CIPHER_SUITE_TKIP;
247 iv32 = key->u.tkip.tx.iv32;
248 iv16 = key->u.tkip.tx.iv16;
250 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
251 drv_get_tkip_seq(sdata->local,
252 key->conf.hw_key_idx,
255 seq[0] = iv16 & 0xff;
256 seq[1] = (iv16 >> 8) & 0xff;
257 seq[2] = iv32 & 0xff;
258 seq[3] = (iv32 >> 8) & 0xff;
259 seq[4] = (iv32 >> 16) & 0xff;
260 seq[5] = (iv32 >> 24) & 0xff;
265 params.cipher = WLAN_CIPHER_SUITE_CCMP;
266 seq[0] = key->u.ccmp.tx_pn[5];
267 seq[1] = key->u.ccmp.tx_pn[4];
268 seq[2] = key->u.ccmp.tx_pn[3];
269 seq[3] = key->u.ccmp.tx_pn[2];
270 seq[4] = key->u.ccmp.tx_pn[1];
271 seq[5] = key->u.ccmp.tx_pn[0];
276 if (key->conf.keylen == 5)
277 params.cipher = WLAN_CIPHER_SUITE_WEP40;
279 params.cipher = WLAN_CIPHER_SUITE_WEP104;
282 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
283 seq[0] = key->u.aes_cmac.tx_pn[5];
284 seq[1] = key->u.aes_cmac.tx_pn[4];
285 seq[2] = key->u.aes_cmac.tx_pn[3];
286 seq[3] = key->u.aes_cmac.tx_pn[2];
287 seq[4] = key->u.aes_cmac.tx_pn[1];
288 seq[5] = key->u.aes_cmac.tx_pn[0];
294 params.key = key->conf.key;
295 params.key_len = key->conf.keylen;
297 callback(cookie, ¶ms);
305 static int ieee80211_config_default_key(struct wiphy *wiphy,
306 struct net_device *dev,
309 struct ieee80211_sub_if_data *sdata;
313 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
314 ieee80211_set_default_key(sdata, key_idx);
321 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
322 struct net_device *dev,
325 struct ieee80211_sub_if_data *sdata;
329 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
330 ieee80211_set_default_mgmt_key(sdata, key_idx);
337 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
339 struct ieee80211_sub_if_data *sdata = sta->sdata;
341 sinfo->generation = sdata->local->sta_generation;
343 sinfo->filled = STATION_INFO_INACTIVE_TIME |
344 STATION_INFO_RX_BYTES |
345 STATION_INFO_TX_BYTES |
346 STATION_INFO_RX_PACKETS |
347 STATION_INFO_TX_PACKETS |
348 STATION_INFO_TX_BITRATE;
350 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
351 sinfo->rx_bytes = sta->rx_bytes;
352 sinfo->tx_bytes = sta->tx_bytes;
353 sinfo->rx_packets = sta->rx_packets;
354 sinfo->tx_packets = sta->tx_packets;
356 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
357 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
358 sinfo->filled |= STATION_INFO_SIGNAL;
359 sinfo->signal = (s8)sta->last_signal;
362 sinfo->txrate.flags = 0;
363 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
364 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
366 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
367 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
368 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
370 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
371 struct ieee80211_supported_band *sband;
372 sband = sta->local->hw.wiphy->bands[
373 sta->local->hw.conf.channel->band];
374 sinfo->txrate.legacy =
375 sband->bitrates[sta->last_tx_rate.idx].bitrate;
377 sinfo->txrate.mcs = sta->last_tx_rate.idx;
379 if (ieee80211_vif_is_mesh(&sdata->vif)) {
380 #ifdef CONFIG_MAC80211_MESH
381 sinfo->filled |= STATION_INFO_LLID |
383 STATION_INFO_PLINK_STATE;
385 sinfo->llid = le16_to_cpu(sta->llid);
386 sinfo->plid = le16_to_cpu(sta->plid);
387 sinfo->plink_state = sta->plink_state;
393 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
394 int idx, u8 *mac, struct station_info *sinfo)
396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
397 struct sta_info *sta;
402 sta = sta_info_get_by_idx(sdata, idx);
405 memcpy(mac, sta->sta.addr, ETH_ALEN);
406 sta_set_sinfo(sta, sinfo);
414 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
415 int idx, struct survey_info *survey)
417 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
419 if (!local->ops->get_survey)
422 return drv_get_survey(local, idx, survey);
425 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
426 u8 *mac, struct station_info *sinfo)
428 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
429 struct sta_info *sta;
434 sta = sta_info_get_bss(sdata, mac);
437 sta_set_sinfo(sta, sinfo);
446 * This handles both adding a beacon and setting new beacon info
448 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
449 struct beacon_parameters *params)
451 struct beacon_data *new, *old;
452 int new_head_len, new_tail_len;
456 old = sdata->u.ap.beacon;
458 /* head must not be zero-length */
459 if (params->head && !params->head_len)
463 * This is a kludge. beacon interval should really be part
464 * of the beacon information.
466 if (params->interval &&
467 (sdata->vif.bss_conf.beacon_int != params->interval)) {
468 sdata->vif.bss_conf.beacon_int = params->interval;
469 ieee80211_bss_info_change_notify(sdata,
470 BSS_CHANGED_BEACON_INT);
473 /* Need to have a beacon head if we don't have one yet */
474 if (!params->head && !old)
477 /* sorry, no way to start beaconing without dtim period */
478 if (!params->dtim_period && !old)
481 /* new or old head? */
483 new_head_len = params->head_len;
485 new_head_len = old->head_len;
487 /* new or old tail? */
488 if (params->tail || !old)
489 /* params->tail_len will be zero for !params->tail */
490 new_tail_len = params->tail_len;
492 new_tail_len = old->tail_len;
494 size = sizeof(*new) + new_head_len + new_tail_len;
496 new = kzalloc(size, GFP_KERNEL);
500 /* start filling the new info now */
502 /* new or old dtim period? */
503 if (params->dtim_period)
504 new->dtim_period = params->dtim_period;
506 new->dtim_period = old->dtim_period;
509 * pointers go into the block we allocated,
510 * memory is | beacon_data | head | tail |
512 new->head = ((u8 *) new) + sizeof(*new);
513 new->tail = new->head + new_head_len;
514 new->head_len = new_head_len;
515 new->tail_len = new_tail_len;
519 memcpy(new->head, params->head, new_head_len);
521 memcpy(new->head, old->head, new_head_len);
523 /* copy in optional tail */
525 memcpy(new->tail, params->tail, new_tail_len);
528 memcpy(new->tail, old->tail, new_tail_len);
530 sdata->vif.bss_conf.dtim_period = new->dtim_period;
532 rcu_assign_pointer(sdata->u.ap.beacon, new);
538 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
543 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
544 struct beacon_parameters *params)
546 struct ieee80211_sub_if_data *sdata;
547 struct beacon_data *old;
549 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
551 old = sdata->u.ap.beacon;
556 return ieee80211_config_beacon(sdata, params);
559 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
560 struct beacon_parameters *params)
562 struct ieee80211_sub_if_data *sdata;
563 struct beacon_data *old;
565 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
567 old = sdata->u.ap.beacon;
572 return ieee80211_config_beacon(sdata, params);
575 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
577 struct ieee80211_sub_if_data *sdata;
578 struct beacon_data *old;
580 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
582 old = sdata->u.ap.beacon;
587 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
591 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
595 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
596 struct iapp_layer2_update {
597 u8 da[ETH_ALEN]; /* broadcast */
598 u8 sa[ETH_ALEN]; /* STA addr */
604 } __attribute__ ((packed));
606 static void ieee80211_send_layer2_update(struct sta_info *sta)
608 struct iapp_layer2_update *msg;
611 /* Send Level 2 Update Frame to update forwarding tables in layer 2
614 skb = dev_alloc_skb(sizeof(*msg));
617 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
619 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
620 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
622 memset(msg->da, 0xff, ETH_ALEN);
623 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
626 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
627 msg->control = 0xaf; /* XID response lsb.1111F101.
628 * F=0 (no poll command; unsolicited frame) */
629 msg->xid_info[0] = 0x81; /* XID format identifier */
630 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
631 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
633 skb->dev = sta->sdata->dev;
634 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
635 memset(skb->cb, 0, sizeof(skb->cb));
639 static void sta_apply_parameters(struct ieee80211_local *local,
640 struct sta_info *sta,
641 struct station_parameters *params)
645 struct ieee80211_supported_band *sband;
646 struct ieee80211_sub_if_data *sdata = sta->sdata;
649 sband = local->hw.wiphy->bands[local->oper_channel->band];
651 spin_lock_bh(&sta->lock);
652 mask = params->sta_flags_mask;
653 set = params->sta_flags_set;
655 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
656 sta->flags &= ~WLAN_STA_AUTHORIZED;
657 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
658 sta->flags |= WLAN_STA_AUTHORIZED;
661 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
662 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
663 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
664 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
667 if (mask & BIT(NL80211_STA_FLAG_WME)) {
668 sta->flags &= ~WLAN_STA_WME;
669 if (set & BIT(NL80211_STA_FLAG_WME))
670 sta->flags |= WLAN_STA_WME;
673 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
674 sta->flags &= ~WLAN_STA_MFP;
675 if (set & BIT(NL80211_STA_FLAG_MFP))
676 sta->flags |= WLAN_STA_MFP;
678 spin_unlock_bh(&sta->lock);
681 * cfg80211 validates this (1-2007) and allows setting the AID
682 * only when creating a new station entry
685 sta->sta.aid = params->aid;
688 * FIXME: updating the following information is racy when this
689 * function is called from ieee80211_change_station().
690 * However, all this information should be static so
691 * maybe we should just reject attemps to change it.
694 if (params->listen_interval >= 0)
695 sta->listen_interval = params->listen_interval;
697 if (params->supported_rates) {
700 for (i = 0; i < params->supported_rates_len; i++) {
701 int rate = (params->supported_rates[i] & 0x7f) * 5;
702 for (j = 0; j < sband->n_bitrates; j++) {
703 if (sband->bitrates[j].bitrate == rate)
707 sta->sta.supp_rates[local->oper_channel->band] = rates;
711 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
715 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
716 switch (params->plink_action) {
717 case PLINK_ACTION_OPEN:
718 mesh_plink_open(sta);
720 case PLINK_ACTION_BLOCK:
721 mesh_plink_block(sta);
727 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
728 u8 *mac, struct station_parameters *params)
730 struct ieee80211_local *local = wiphy_priv(wiphy);
731 struct sta_info *sta;
732 struct ieee80211_sub_if_data *sdata;
737 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
739 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
740 sdata->vif.type != NL80211_IFTYPE_AP)
743 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
745 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
748 if (is_multicast_ether_addr(mac))
751 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
755 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
757 sta_apply_parameters(local, sta, params);
759 rate_control_rate_init(sta);
761 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
762 sdata->vif.type == NL80211_IFTYPE_AP;
764 err = sta_info_insert_rcu(sta);
771 ieee80211_send_layer2_update(sta);
778 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
781 struct ieee80211_local *local = wiphy_priv(wiphy);
782 struct ieee80211_sub_if_data *sdata;
784 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
787 return sta_info_destroy_addr_bss(sdata, mac);
789 sta_info_flush(local, sdata);
793 static int ieee80211_change_station(struct wiphy *wiphy,
794 struct net_device *dev,
796 struct station_parameters *params)
798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
799 struct ieee80211_local *local = wiphy_priv(wiphy);
800 struct sta_info *sta;
801 struct ieee80211_sub_if_data *vlansdata;
805 sta = sta_info_get_bss(sdata, mac);
811 if (params->vlan && params->vlan != sta->sdata->dev) {
812 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
814 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
815 vlansdata->vif.type != NL80211_IFTYPE_AP) {
820 if (params->vlan->ieee80211_ptr->use_4addr) {
821 if (vlansdata->u.vlan.sta) {
826 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
829 sta->sdata = vlansdata;
830 ieee80211_send_layer2_update(sta);
833 sta_apply_parameters(local, sta, params);
840 #ifdef CONFIG_MAC80211_MESH
841 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
842 u8 *dst, u8 *next_hop)
844 struct ieee80211_sub_if_data *sdata;
845 struct mesh_path *mpath;
846 struct sta_info *sta;
849 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
852 sta = sta_info_get(sdata, next_hop);
858 err = mesh_path_add(dst, sdata);
864 mpath = mesh_path_lookup(dst, sdata);
869 mesh_path_fix_nexthop(mpath, sta);
875 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
881 return mesh_path_del(dst, sdata);
883 mesh_path_flush(sdata);
887 static int ieee80211_change_mpath(struct wiphy *wiphy,
888 struct net_device *dev,
889 u8 *dst, u8 *next_hop)
891 struct ieee80211_sub_if_data *sdata;
892 struct mesh_path *mpath;
893 struct sta_info *sta;
895 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
899 sta = sta_info_get(sdata, next_hop);
905 mpath = mesh_path_lookup(dst, sdata);
911 mesh_path_fix_nexthop(mpath, sta);
917 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
918 struct mpath_info *pinfo)
921 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
923 memset(next_hop, 0, ETH_ALEN);
925 pinfo->generation = mesh_paths_generation;
927 pinfo->filled = MPATH_INFO_FRAME_QLEN |
931 MPATH_INFO_DISCOVERY_TIMEOUT |
932 MPATH_INFO_DISCOVERY_RETRIES |
935 pinfo->frame_qlen = mpath->frame_queue.qlen;
936 pinfo->sn = mpath->sn;
937 pinfo->metric = mpath->metric;
938 if (time_before(jiffies, mpath->exp_time))
939 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
940 pinfo->discovery_timeout =
941 jiffies_to_msecs(mpath->discovery_timeout);
942 pinfo->discovery_retries = mpath->discovery_retries;
944 if (mpath->flags & MESH_PATH_ACTIVE)
945 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
946 if (mpath->flags & MESH_PATH_RESOLVING)
947 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
948 if (mpath->flags & MESH_PATH_SN_VALID)
949 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
950 if (mpath->flags & MESH_PATH_FIXED)
951 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
952 if (mpath->flags & MESH_PATH_RESOLVING)
953 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
955 pinfo->flags = mpath->flags;
958 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
959 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
962 struct ieee80211_sub_if_data *sdata;
963 struct mesh_path *mpath;
965 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
968 mpath = mesh_path_lookup(dst, sdata);
973 memcpy(dst, mpath->dst, ETH_ALEN);
974 mpath_set_pinfo(mpath, next_hop, pinfo);
979 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
980 int idx, u8 *dst, u8 *next_hop,
981 struct mpath_info *pinfo)
983 struct ieee80211_sub_if_data *sdata;
984 struct mesh_path *mpath;
986 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
989 mpath = mesh_path_lookup_by_idx(idx, sdata);
994 memcpy(dst, mpath->dst, ETH_ALEN);
995 mpath_set_pinfo(mpath, next_hop, pinfo);
1000 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1001 struct net_device *dev,
1002 struct mesh_config *conf)
1004 struct ieee80211_sub_if_data *sdata;
1005 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1007 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1011 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1013 return (mask >> (parm-1)) & 0x1;
1016 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1017 struct net_device *dev,
1018 const struct mesh_config *nconf, u32 mask)
1020 struct mesh_config *conf;
1021 struct ieee80211_sub_if_data *sdata;
1022 struct ieee80211_if_mesh *ifmsh;
1024 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1025 ifmsh = &sdata->u.mesh;
1027 /* Set the config options which we are interested in setting */
1028 conf = &(sdata->u.mesh.mshcfg);
1029 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1030 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1031 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1032 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1033 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1034 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1035 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1036 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1037 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1038 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1039 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1040 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1041 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1042 conf->auto_open_plinks = nconf->auto_open_plinks;
1043 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1044 conf->dot11MeshHWMPmaxPREQretries =
1045 nconf->dot11MeshHWMPmaxPREQretries;
1046 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1047 conf->path_refresh_time = nconf->path_refresh_time;
1048 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1049 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1050 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1051 conf->dot11MeshHWMPactivePathTimeout =
1052 nconf->dot11MeshHWMPactivePathTimeout;
1053 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1054 conf->dot11MeshHWMPpreqMinInterval =
1055 nconf->dot11MeshHWMPpreqMinInterval;
1056 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1058 conf->dot11MeshHWMPnetDiameterTraversalTime =
1059 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1060 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1061 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1062 ieee80211_mesh_root_setup(ifmsh);
1069 static int ieee80211_change_bss(struct wiphy *wiphy,
1070 struct net_device *dev,
1071 struct bss_parameters *params)
1073 struct ieee80211_sub_if_data *sdata;
1076 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1078 if (params->use_cts_prot >= 0) {
1079 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1080 changed |= BSS_CHANGED_ERP_CTS_PROT;
1082 if (params->use_short_preamble >= 0) {
1083 sdata->vif.bss_conf.use_short_preamble =
1084 params->use_short_preamble;
1085 changed |= BSS_CHANGED_ERP_PREAMBLE;
1088 if (!sdata->vif.bss_conf.use_short_slot &&
1089 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1090 sdata->vif.bss_conf.use_short_slot = true;
1091 changed |= BSS_CHANGED_ERP_SLOT;
1094 if (params->use_short_slot_time >= 0) {
1095 sdata->vif.bss_conf.use_short_slot =
1096 params->use_short_slot_time;
1097 changed |= BSS_CHANGED_ERP_SLOT;
1100 if (params->basic_rates) {
1103 struct ieee80211_local *local = wiphy_priv(wiphy);
1104 struct ieee80211_supported_band *sband =
1105 wiphy->bands[local->oper_channel->band];
1107 for (i = 0; i < params->basic_rates_len; i++) {
1108 int rate = (params->basic_rates[i] & 0x7f) * 5;
1109 for (j = 0; j < sband->n_bitrates; j++) {
1110 if (sband->bitrates[j].bitrate == rate)
1114 sdata->vif.bss_conf.basic_rates = rates;
1115 changed |= BSS_CHANGED_BASIC_RATES;
1118 ieee80211_bss_info_change_notify(sdata, changed);
1123 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1124 struct ieee80211_txq_params *params)
1126 struct ieee80211_local *local = wiphy_priv(wiphy);
1127 struct ieee80211_tx_queue_params p;
1129 if (!local->ops->conf_tx)
1132 memset(&p, 0, sizeof(p));
1133 p.aifs = params->aifs;
1134 p.cw_max = params->cwmax;
1135 p.cw_min = params->cwmin;
1136 p.txop = params->txop;
1139 * Setting tx queue params disables u-apsd because it's only
1140 * called in master mode.
1144 if (drv_conf_tx(local, params->queue, &p)) {
1145 printk(KERN_DEBUG "%s: failed to set TX queue "
1146 "parameters for queue %d\n",
1147 wiphy_name(local->hw.wiphy), params->queue);
1151 /* enable WMM or activate new settings */
1152 local->hw.conf.flags |= IEEE80211_CONF_QOS;
1153 drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1158 static int ieee80211_set_channel(struct wiphy *wiphy,
1159 struct ieee80211_channel *chan,
1160 enum nl80211_channel_type channel_type)
1162 struct ieee80211_local *local = wiphy_priv(wiphy);
1164 local->oper_channel = chan;
1165 local->oper_channel_type = channel_type;
1167 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1171 static int ieee80211_suspend(struct wiphy *wiphy)
1173 return __ieee80211_suspend(wiphy_priv(wiphy));
1176 static int ieee80211_resume(struct wiphy *wiphy)
1178 return __ieee80211_resume(wiphy_priv(wiphy));
1181 #define ieee80211_suspend NULL
1182 #define ieee80211_resume NULL
1185 static int ieee80211_scan(struct wiphy *wiphy,
1186 struct net_device *dev,
1187 struct cfg80211_scan_request *req)
1189 struct ieee80211_sub_if_data *sdata;
1191 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1193 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1194 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1195 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1196 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1199 return ieee80211_request_scan(sdata, req);
1202 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1203 struct cfg80211_auth_request *req)
1205 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1208 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1209 struct cfg80211_assoc_request *req)
1211 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1214 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1215 struct cfg80211_deauth_request *req,
1218 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1222 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1223 struct cfg80211_disassoc_request *req,
1226 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1230 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1231 struct cfg80211_ibss_params *params)
1233 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235 return ieee80211_ibss_join(sdata, params);
1238 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1242 return ieee80211_ibss_leave(sdata);
1245 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1247 struct ieee80211_local *local = wiphy_priv(wiphy);
1250 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1251 err = drv_set_coverage_class(local, wiphy->coverage_class);
1257 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1258 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1264 if (changed & WIPHY_PARAM_RETRY_SHORT)
1265 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1266 if (changed & WIPHY_PARAM_RETRY_LONG)
1267 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1269 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1270 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1275 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1276 enum tx_power_setting type, int dbm)
1278 struct ieee80211_local *local = wiphy_priv(wiphy);
1279 struct ieee80211_channel *chan = local->hw.conf.channel;
1283 case TX_POWER_AUTOMATIC:
1284 local->user_power_level = -1;
1286 case TX_POWER_LIMITED:
1289 local->user_power_level = dbm;
1291 case TX_POWER_FIXED:
1294 /* TODO: move to cfg80211 when it knows the channel */
1295 if (dbm > chan->max_power)
1297 local->user_power_level = dbm;
1301 ieee80211_hw_config(local, changes);
1306 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1308 struct ieee80211_local *local = wiphy_priv(wiphy);
1310 *dbm = local->hw.conf.power_level;
1315 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1318 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1320 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1325 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1327 struct ieee80211_local *local = wiphy_priv(wiphy);
1329 drv_rfkill_poll(local);
1332 #ifdef CONFIG_NL80211_TESTMODE
1333 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1335 struct ieee80211_local *local = wiphy_priv(wiphy);
1337 if (!local->ops->testmode_cmd)
1340 return local->ops->testmode_cmd(&local->hw, data, len);
1344 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1345 enum ieee80211_smps_mode smps_mode)
1348 enum ieee80211_smps_mode old_req;
1351 old_req = sdata->u.mgd.req_smps;
1352 sdata->u.mgd.req_smps = smps_mode;
1354 if (old_req == smps_mode &&
1355 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1359 * If not associated, or current association is not an HT
1360 * association, there's no need to send an action frame.
1362 if (!sdata->u.mgd.associated ||
1363 sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1364 mutex_lock(&sdata->local->iflist_mtx);
1365 ieee80211_recalc_smps(sdata->local, sdata);
1366 mutex_unlock(&sdata->local->iflist_mtx);
1370 ap = sdata->u.mgd.associated->bssid;
1372 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1373 if (sdata->u.mgd.powersave)
1374 smps_mode = IEEE80211_SMPS_DYNAMIC;
1376 smps_mode = IEEE80211_SMPS_OFF;
1379 /* send SM PS frame to AP */
1380 err = ieee80211_send_smps_action(sdata, smps_mode,
1383 sdata->u.mgd.req_smps = old_req;
1388 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1389 bool enabled, int timeout)
1391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1392 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1393 struct ieee80211_conf *conf = &local->hw.conf;
1395 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1398 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1401 if (enabled == sdata->u.mgd.powersave &&
1402 timeout == conf->dynamic_ps_timeout)
1405 sdata->u.mgd.powersave = enabled;
1406 conf->dynamic_ps_timeout = timeout;
1408 /* no change, but if automatic follow powersave */
1409 mutex_lock(&sdata->u.mgd.mtx);
1410 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1411 mutex_unlock(&sdata->u.mgd.mtx);
1413 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1414 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1416 ieee80211_recalc_ps(local, -1);
1421 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1422 struct net_device *dev,
1423 s32 rssi_thold, u32 rssi_hyst)
1425 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1426 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1427 struct ieee80211_vif *vif = &sdata->vif;
1428 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1430 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1431 rssi_hyst == bss_conf->cqm_rssi_hyst)
1434 bss_conf->cqm_rssi_thold = rssi_thold;
1435 bss_conf->cqm_rssi_hyst = rssi_hyst;
1437 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1438 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1443 /* tell the driver upon association, unless already associated */
1444 if (sdata->u.mgd.associated)
1445 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1450 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1451 struct net_device *dev,
1453 const struct cfg80211_bitrate_mask *mask)
1455 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1456 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1460 * This _could_ be supported by providing a hook for
1461 * drivers for this function, but at this point it
1462 * doesn't seem worth bothering.
1464 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1468 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1469 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1474 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1475 struct net_device *dev,
1476 struct ieee80211_channel *chan,
1477 enum nl80211_channel_type channel_type,
1478 unsigned int duration,
1481 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1483 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1487 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1488 struct net_device *dev,
1491 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1493 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1496 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1497 struct ieee80211_channel *chan,
1498 enum nl80211_channel_type channel_type,
1499 const u8 *buf, size_t len, u64 *cookie)
1501 return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1502 channel_type, buf, len, cookie);
1505 struct cfg80211_ops mac80211_config_ops = {
1506 .add_virtual_intf = ieee80211_add_iface,
1507 .del_virtual_intf = ieee80211_del_iface,
1508 .change_virtual_intf = ieee80211_change_iface,
1509 .add_key = ieee80211_add_key,
1510 .del_key = ieee80211_del_key,
1511 .get_key = ieee80211_get_key,
1512 .set_default_key = ieee80211_config_default_key,
1513 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1514 .add_beacon = ieee80211_add_beacon,
1515 .set_beacon = ieee80211_set_beacon,
1516 .del_beacon = ieee80211_del_beacon,
1517 .add_station = ieee80211_add_station,
1518 .del_station = ieee80211_del_station,
1519 .change_station = ieee80211_change_station,
1520 .get_station = ieee80211_get_station,
1521 .dump_station = ieee80211_dump_station,
1522 .dump_survey = ieee80211_dump_survey,
1523 #ifdef CONFIG_MAC80211_MESH
1524 .add_mpath = ieee80211_add_mpath,
1525 .del_mpath = ieee80211_del_mpath,
1526 .change_mpath = ieee80211_change_mpath,
1527 .get_mpath = ieee80211_get_mpath,
1528 .dump_mpath = ieee80211_dump_mpath,
1529 .set_mesh_params = ieee80211_set_mesh_params,
1530 .get_mesh_params = ieee80211_get_mesh_params,
1532 .change_bss = ieee80211_change_bss,
1533 .set_txq_params = ieee80211_set_txq_params,
1534 .set_channel = ieee80211_set_channel,
1535 .suspend = ieee80211_suspend,
1536 .resume = ieee80211_resume,
1537 .scan = ieee80211_scan,
1538 .auth = ieee80211_auth,
1539 .assoc = ieee80211_assoc,
1540 .deauth = ieee80211_deauth,
1541 .disassoc = ieee80211_disassoc,
1542 .join_ibss = ieee80211_join_ibss,
1543 .leave_ibss = ieee80211_leave_ibss,
1544 .set_wiphy_params = ieee80211_set_wiphy_params,
1545 .set_tx_power = ieee80211_set_tx_power,
1546 .get_tx_power = ieee80211_get_tx_power,
1547 .set_wds_peer = ieee80211_set_wds_peer,
1548 .rfkill_poll = ieee80211_rfkill_poll,
1549 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1550 .set_power_mgmt = ieee80211_set_power_mgmt,
1551 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1552 .remain_on_channel = ieee80211_remain_on_channel,
1553 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1554 .action = ieee80211_action,
1555 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,