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_get_station(struct wiphy *wiphy, struct net_device *dev,
415 u8 *mac, struct station_info *sinfo)
417 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
418 struct sta_info *sta;
423 sta = sta_info_get_bss(sdata, mac);
426 sta_set_sinfo(sta, sinfo);
435 * This handles both adding a beacon and setting new beacon info
437 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
438 struct beacon_parameters *params)
440 struct beacon_data *new, *old;
441 int new_head_len, new_tail_len;
445 old = sdata->u.ap.beacon;
447 /* head must not be zero-length */
448 if (params->head && !params->head_len)
452 * This is a kludge. beacon interval should really be part
453 * of the beacon information.
455 if (params->interval &&
456 (sdata->vif.bss_conf.beacon_int != params->interval)) {
457 sdata->vif.bss_conf.beacon_int = params->interval;
458 ieee80211_bss_info_change_notify(sdata,
459 BSS_CHANGED_BEACON_INT);
462 /* Need to have a beacon head if we don't have one yet */
463 if (!params->head && !old)
466 /* sorry, no way to start beaconing without dtim period */
467 if (!params->dtim_period && !old)
470 /* new or old head? */
472 new_head_len = params->head_len;
474 new_head_len = old->head_len;
476 /* new or old tail? */
477 if (params->tail || !old)
478 /* params->tail_len will be zero for !params->tail */
479 new_tail_len = params->tail_len;
481 new_tail_len = old->tail_len;
483 size = sizeof(*new) + new_head_len + new_tail_len;
485 new = kzalloc(size, GFP_KERNEL);
489 /* start filling the new info now */
491 /* new or old dtim period? */
492 if (params->dtim_period)
493 new->dtim_period = params->dtim_period;
495 new->dtim_period = old->dtim_period;
498 * pointers go into the block we allocated,
499 * memory is | beacon_data | head | tail |
501 new->head = ((u8 *) new) + sizeof(*new);
502 new->tail = new->head + new_head_len;
503 new->head_len = new_head_len;
504 new->tail_len = new_tail_len;
508 memcpy(new->head, params->head, new_head_len);
510 memcpy(new->head, old->head, new_head_len);
512 /* copy in optional tail */
514 memcpy(new->tail, params->tail, new_tail_len);
517 memcpy(new->tail, old->tail, new_tail_len);
519 sdata->vif.bss_conf.dtim_period = new->dtim_period;
521 rcu_assign_pointer(sdata->u.ap.beacon, new);
527 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
532 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
533 struct beacon_parameters *params)
535 struct ieee80211_sub_if_data *sdata;
536 struct beacon_data *old;
538 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
540 old = sdata->u.ap.beacon;
545 return ieee80211_config_beacon(sdata, params);
548 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
549 struct beacon_parameters *params)
551 struct ieee80211_sub_if_data *sdata;
552 struct beacon_data *old;
554 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
556 old = sdata->u.ap.beacon;
561 return ieee80211_config_beacon(sdata, params);
564 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
566 struct ieee80211_sub_if_data *sdata;
567 struct beacon_data *old;
569 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
571 old = sdata->u.ap.beacon;
576 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
580 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
584 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
585 struct iapp_layer2_update {
586 u8 da[ETH_ALEN]; /* broadcast */
587 u8 sa[ETH_ALEN]; /* STA addr */
593 } __attribute__ ((packed));
595 static void ieee80211_send_layer2_update(struct sta_info *sta)
597 struct iapp_layer2_update *msg;
600 /* Send Level 2 Update Frame to update forwarding tables in layer 2
603 skb = dev_alloc_skb(sizeof(*msg));
606 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
608 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
609 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
611 memset(msg->da, 0xff, ETH_ALEN);
612 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
615 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
616 msg->control = 0xaf; /* XID response lsb.1111F101.
617 * F=0 (no poll command; unsolicited frame) */
618 msg->xid_info[0] = 0x81; /* XID format identifier */
619 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
620 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
622 skb->dev = sta->sdata->dev;
623 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
624 memset(skb->cb, 0, sizeof(skb->cb));
628 static void sta_apply_parameters(struct ieee80211_local *local,
629 struct sta_info *sta,
630 struct station_parameters *params)
634 struct ieee80211_supported_band *sband;
635 struct ieee80211_sub_if_data *sdata = sta->sdata;
638 sband = local->hw.wiphy->bands[local->oper_channel->band];
640 spin_lock_bh(&sta->lock);
641 mask = params->sta_flags_mask;
642 set = params->sta_flags_set;
644 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
645 sta->flags &= ~WLAN_STA_AUTHORIZED;
646 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
647 sta->flags |= WLAN_STA_AUTHORIZED;
650 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
651 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
652 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
653 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
656 if (mask & BIT(NL80211_STA_FLAG_WME)) {
657 sta->flags &= ~WLAN_STA_WME;
658 if (set & BIT(NL80211_STA_FLAG_WME))
659 sta->flags |= WLAN_STA_WME;
662 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
663 sta->flags &= ~WLAN_STA_MFP;
664 if (set & BIT(NL80211_STA_FLAG_MFP))
665 sta->flags |= WLAN_STA_MFP;
667 spin_unlock_bh(&sta->lock);
670 * cfg80211 validates this (1-2007) and allows setting the AID
671 * only when creating a new station entry
674 sta->sta.aid = params->aid;
677 * FIXME: updating the following information is racy when this
678 * function is called from ieee80211_change_station().
679 * However, all this information should be static so
680 * maybe we should just reject attemps to change it.
683 if (params->listen_interval >= 0)
684 sta->listen_interval = params->listen_interval;
686 if (params->supported_rates) {
689 for (i = 0; i < params->supported_rates_len; i++) {
690 int rate = (params->supported_rates[i] & 0x7f) * 5;
691 for (j = 0; j < sband->n_bitrates; j++) {
692 if (sband->bitrates[j].bitrate == rate)
696 sta->sta.supp_rates[local->oper_channel->band] = rates;
700 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
704 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
705 switch (params->plink_action) {
706 case PLINK_ACTION_OPEN:
707 mesh_plink_open(sta);
709 case PLINK_ACTION_BLOCK:
710 mesh_plink_block(sta);
716 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
717 u8 *mac, struct station_parameters *params)
719 struct ieee80211_local *local = wiphy_priv(wiphy);
720 struct sta_info *sta;
721 struct ieee80211_sub_if_data *sdata;
726 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
728 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
729 sdata->vif.type != NL80211_IFTYPE_AP)
732 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
734 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
737 if (is_multicast_ether_addr(mac))
740 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
744 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
746 sta_apply_parameters(local, sta, params);
748 rate_control_rate_init(sta);
750 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
751 sdata->vif.type == NL80211_IFTYPE_AP;
753 err = sta_info_insert_rcu(sta);
760 ieee80211_send_layer2_update(sta);
767 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
770 struct ieee80211_local *local = wiphy_priv(wiphy);
771 struct ieee80211_sub_if_data *sdata;
773 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
776 return sta_info_destroy_addr_bss(sdata, mac);
778 sta_info_flush(local, sdata);
782 static int ieee80211_change_station(struct wiphy *wiphy,
783 struct net_device *dev,
785 struct station_parameters *params)
787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
788 struct ieee80211_local *local = wiphy_priv(wiphy);
789 struct sta_info *sta;
790 struct ieee80211_sub_if_data *vlansdata;
794 sta = sta_info_get_bss(sdata, mac);
800 if (params->vlan && params->vlan != sta->sdata->dev) {
801 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
803 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
804 vlansdata->vif.type != NL80211_IFTYPE_AP) {
809 if (params->vlan->ieee80211_ptr->use_4addr) {
810 if (vlansdata->u.vlan.sta) {
815 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
818 sta->sdata = vlansdata;
819 ieee80211_send_layer2_update(sta);
822 sta_apply_parameters(local, sta, params);
829 #ifdef CONFIG_MAC80211_MESH
830 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
831 u8 *dst, u8 *next_hop)
833 struct ieee80211_sub_if_data *sdata;
834 struct mesh_path *mpath;
835 struct sta_info *sta;
838 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
841 sta = sta_info_get(sdata, next_hop);
847 err = mesh_path_add(dst, sdata);
853 mpath = mesh_path_lookup(dst, sdata);
858 mesh_path_fix_nexthop(mpath, sta);
864 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
870 return mesh_path_del(dst, sdata);
872 mesh_path_flush(sdata);
876 static int ieee80211_change_mpath(struct wiphy *wiphy,
877 struct net_device *dev,
878 u8 *dst, u8 *next_hop)
880 struct ieee80211_sub_if_data *sdata;
881 struct mesh_path *mpath;
882 struct sta_info *sta;
884 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
888 sta = sta_info_get(sdata, next_hop);
894 mpath = mesh_path_lookup(dst, sdata);
900 mesh_path_fix_nexthop(mpath, sta);
906 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
907 struct mpath_info *pinfo)
910 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
912 memset(next_hop, 0, ETH_ALEN);
914 pinfo->generation = mesh_paths_generation;
916 pinfo->filled = MPATH_INFO_FRAME_QLEN |
920 MPATH_INFO_DISCOVERY_TIMEOUT |
921 MPATH_INFO_DISCOVERY_RETRIES |
924 pinfo->frame_qlen = mpath->frame_queue.qlen;
925 pinfo->sn = mpath->sn;
926 pinfo->metric = mpath->metric;
927 if (time_before(jiffies, mpath->exp_time))
928 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
929 pinfo->discovery_timeout =
930 jiffies_to_msecs(mpath->discovery_timeout);
931 pinfo->discovery_retries = mpath->discovery_retries;
933 if (mpath->flags & MESH_PATH_ACTIVE)
934 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
935 if (mpath->flags & MESH_PATH_RESOLVING)
936 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
937 if (mpath->flags & MESH_PATH_SN_VALID)
938 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
939 if (mpath->flags & MESH_PATH_FIXED)
940 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
941 if (mpath->flags & MESH_PATH_RESOLVING)
942 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
944 pinfo->flags = mpath->flags;
947 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
948 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
951 struct ieee80211_sub_if_data *sdata;
952 struct mesh_path *mpath;
954 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
957 mpath = mesh_path_lookup(dst, sdata);
962 memcpy(dst, mpath->dst, ETH_ALEN);
963 mpath_set_pinfo(mpath, next_hop, pinfo);
968 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
969 int idx, u8 *dst, u8 *next_hop,
970 struct mpath_info *pinfo)
972 struct ieee80211_sub_if_data *sdata;
973 struct mesh_path *mpath;
975 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
978 mpath = mesh_path_lookup_by_idx(idx, sdata);
983 memcpy(dst, mpath->dst, ETH_ALEN);
984 mpath_set_pinfo(mpath, next_hop, pinfo);
989 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
990 struct net_device *dev,
991 struct mesh_config *conf)
993 struct ieee80211_sub_if_data *sdata;
994 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
996 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1000 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1002 return (mask >> (parm-1)) & 0x1;
1005 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1006 struct net_device *dev,
1007 const struct mesh_config *nconf, u32 mask)
1009 struct mesh_config *conf;
1010 struct ieee80211_sub_if_data *sdata;
1011 struct ieee80211_if_mesh *ifmsh;
1013 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1014 ifmsh = &sdata->u.mesh;
1016 /* Set the config options which we are interested in setting */
1017 conf = &(sdata->u.mesh.mshcfg);
1018 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1019 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1020 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1021 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1022 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1023 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1024 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1025 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1026 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1027 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1028 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1029 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1030 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1031 conf->auto_open_plinks = nconf->auto_open_plinks;
1032 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1033 conf->dot11MeshHWMPmaxPREQretries =
1034 nconf->dot11MeshHWMPmaxPREQretries;
1035 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1036 conf->path_refresh_time = nconf->path_refresh_time;
1037 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1038 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1040 conf->dot11MeshHWMPactivePathTimeout =
1041 nconf->dot11MeshHWMPactivePathTimeout;
1042 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1043 conf->dot11MeshHWMPpreqMinInterval =
1044 nconf->dot11MeshHWMPpreqMinInterval;
1045 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1047 conf->dot11MeshHWMPnetDiameterTraversalTime =
1048 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1049 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1050 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1051 ieee80211_mesh_root_setup(ifmsh);
1058 static int ieee80211_change_bss(struct wiphy *wiphy,
1059 struct net_device *dev,
1060 struct bss_parameters *params)
1062 struct ieee80211_sub_if_data *sdata;
1065 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1067 if (params->use_cts_prot >= 0) {
1068 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1069 changed |= BSS_CHANGED_ERP_CTS_PROT;
1071 if (params->use_short_preamble >= 0) {
1072 sdata->vif.bss_conf.use_short_preamble =
1073 params->use_short_preamble;
1074 changed |= BSS_CHANGED_ERP_PREAMBLE;
1077 if (!sdata->vif.bss_conf.use_short_slot &&
1078 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1079 sdata->vif.bss_conf.use_short_slot = true;
1080 changed |= BSS_CHANGED_ERP_SLOT;
1083 if (params->use_short_slot_time >= 0) {
1084 sdata->vif.bss_conf.use_short_slot =
1085 params->use_short_slot_time;
1086 changed |= BSS_CHANGED_ERP_SLOT;
1089 if (params->basic_rates) {
1092 struct ieee80211_local *local = wiphy_priv(wiphy);
1093 struct ieee80211_supported_band *sband =
1094 wiphy->bands[local->oper_channel->band];
1096 for (i = 0; i < params->basic_rates_len; i++) {
1097 int rate = (params->basic_rates[i] & 0x7f) * 5;
1098 for (j = 0; j < sband->n_bitrates; j++) {
1099 if (sband->bitrates[j].bitrate == rate)
1103 sdata->vif.bss_conf.basic_rates = rates;
1104 changed |= BSS_CHANGED_BASIC_RATES;
1107 ieee80211_bss_info_change_notify(sdata, changed);
1112 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1113 struct ieee80211_txq_params *params)
1115 struct ieee80211_local *local = wiphy_priv(wiphy);
1116 struct ieee80211_tx_queue_params p;
1118 if (!local->ops->conf_tx)
1121 memset(&p, 0, sizeof(p));
1122 p.aifs = params->aifs;
1123 p.cw_max = params->cwmax;
1124 p.cw_min = params->cwmin;
1125 p.txop = params->txop;
1128 * Setting tx queue params disables u-apsd because it's only
1129 * called in master mode.
1133 if (drv_conf_tx(local, params->queue, &p)) {
1134 printk(KERN_DEBUG "%s: failed to set TX queue "
1135 "parameters for queue %d\n",
1136 wiphy_name(local->hw.wiphy), params->queue);
1143 static int ieee80211_set_channel(struct wiphy *wiphy,
1144 struct ieee80211_channel *chan,
1145 enum nl80211_channel_type channel_type)
1147 struct ieee80211_local *local = wiphy_priv(wiphy);
1149 local->oper_channel = chan;
1150 local->oper_channel_type = channel_type;
1152 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1156 static int ieee80211_suspend(struct wiphy *wiphy)
1158 return __ieee80211_suspend(wiphy_priv(wiphy));
1161 static int ieee80211_resume(struct wiphy *wiphy)
1163 return __ieee80211_resume(wiphy_priv(wiphy));
1166 #define ieee80211_suspend NULL
1167 #define ieee80211_resume NULL
1170 static int ieee80211_scan(struct wiphy *wiphy,
1171 struct net_device *dev,
1172 struct cfg80211_scan_request *req)
1174 struct ieee80211_sub_if_data *sdata;
1176 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1178 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1179 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1180 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1181 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1184 return ieee80211_request_scan(sdata, req);
1187 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1188 struct cfg80211_auth_request *req)
1190 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1193 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1194 struct cfg80211_assoc_request *req)
1196 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1199 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1200 struct cfg80211_deauth_request *req,
1203 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1207 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1208 struct cfg80211_disassoc_request *req,
1211 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1215 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1216 struct cfg80211_ibss_params *params)
1218 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220 return ieee80211_ibss_join(sdata, params);
1223 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1225 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1227 return ieee80211_ibss_leave(sdata);
1230 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1232 struct ieee80211_local *local = wiphy_priv(wiphy);
1235 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1236 err = drv_set_coverage_class(local, wiphy->coverage_class);
1242 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1243 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1249 if (changed & WIPHY_PARAM_RETRY_SHORT)
1250 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1251 if (changed & WIPHY_PARAM_RETRY_LONG)
1252 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1254 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1255 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1260 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1261 enum tx_power_setting type, int dbm)
1263 struct ieee80211_local *local = wiphy_priv(wiphy);
1264 struct ieee80211_channel *chan = local->hw.conf.channel;
1268 case TX_POWER_AUTOMATIC:
1269 local->user_power_level = -1;
1271 case TX_POWER_LIMITED:
1274 local->user_power_level = dbm;
1276 case TX_POWER_FIXED:
1279 /* TODO: move to cfg80211 when it knows the channel */
1280 if (dbm > chan->max_power)
1282 local->user_power_level = dbm;
1286 ieee80211_hw_config(local, changes);
1291 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1293 struct ieee80211_local *local = wiphy_priv(wiphy);
1295 *dbm = local->hw.conf.power_level;
1300 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1305 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1310 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1312 struct ieee80211_local *local = wiphy_priv(wiphy);
1314 drv_rfkill_poll(local);
1317 #ifdef CONFIG_NL80211_TESTMODE
1318 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1320 struct ieee80211_local *local = wiphy_priv(wiphy);
1322 if (!local->ops->testmode_cmd)
1325 return local->ops->testmode_cmd(&local->hw, data, len);
1329 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1330 enum ieee80211_smps_mode smps_mode)
1333 enum ieee80211_smps_mode old_req;
1336 old_req = sdata->u.mgd.req_smps;
1337 sdata->u.mgd.req_smps = smps_mode;
1339 if (old_req == smps_mode &&
1340 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1344 * If not associated, or current association is not an HT
1345 * association, there's no need to send an action frame.
1347 if (!sdata->u.mgd.associated ||
1348 sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1349 mutex_lock(&sdata->local->iflist_mtx);
1350 ieee80211_recalc_smps(sdata->local, sdata);
1351 mutex_unlock(&sdata->local->iflist_mtx);
1355 ap = sdata->u.mgd.associated->bssid;
1357 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1358 if (sdata->u.mgd.powersave)
1359 smps_mode = IEEE80211_SMPS_DYNAMIC;
1361 smps_mode = IEEE80211_SMPS_OFF;
1364 /* send SM PS frame to AP */
1365 err = ieee80211_send_smps_action(sdata, smps_mode,
1368 sdata->u.mgd.req_smps = old_req;
1373 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1374 bool enabled, int timeout)
1376 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1377 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1378 struct ieee80211_conf *conf = &local->hw.conf;
1380 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1383 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1386 if (enabled == sdata->u.mgd.powersave &&
1387 timeout == conf->dynamic_ps_timeout)
1390 sdata->u.mgd.powersave = enabled;
1391 conf->dynamic_ps_timeout = timeout;
1393 /* no change, but if automatic follow powersave */
1394 mutex_lock(&sdata->u.mgd.mtx);
1395 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1396 mutex_unlock(&sdata->u.mgd.mtx);
1398 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1399 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1401 ieee80211_recalc_ps(local, -1);
1406 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1407 struct net_device *dev,
1409 const struct cfg80211_bitrate_mask *mask)
1411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1412 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1416 * This _could_ be supported by providing a hook for
1417 * drivers for this function, but at this point it
1418 * doesn't seem worth bothering.
1420 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1424 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1425 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1430 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1431 struct net_device *dev,
1432 struct ieee80211_channel *chan,
1433 enum nl80211_channel_type channel_type,
1434 unsigned int duration,
1437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1439 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1443 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1444 struct net_device *dev,
1447 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1452 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1453 struct ieee80211_channel *chan,
1454 enum nl80211_channel_type channel_type,
1455 const u8 *buf, size_t len, u64 *cookie)
1457 return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1458 channel_type, buf, len, cookie);
1461 struct cfg80211_ops mac80211_config_ops = {
1462 .add_virtual_intf = ieee80211_add_iface,
1463 .del_virtual_intf = ieee80211_del_iface,
1464 .change_virtual_intf = ieee80211_change_iface,
1465 .add_key = ieee80211_add_key,
1466 .del_key = ieee80211_del_key,
1467 .get_key = ieee80211_get_key,
1468 .set_default_key = ieee80211_config_default_key,
1469 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1470 .add_beacon = ieee80211_add_beacon,
1471 .set_beacon = ieee80211_set_beacon,
1472 .del_beacon = ieee80211_del_beacon,
1473 .add_station = ieee80211_add_station,
1474 .del_station = ieee80211_del_station,
1475 .change_station = ieee80211_change_station,
1476 .get_station = ieee80211_get_station,
1477 .dump_station = ieee80211_dump_station,
1478 #ifdef CONFIG_MAC80211_MESH
1479 .add_mpath = ieee80211_add_mpath,
1480 .del_mpath = ieee80211_del_mpath,
1481 .change_mpath = ieee80211_change_mpath,
1482 .get_mpath = ieee80211_get_mpath,
1483 .dump_mpath = ieee80211_dump_mpath,
1484 .set_mesh_params = ieee80211_set_mesh_params,
1485 .get_mesh_params = ieee80211_get_mesh_params,
1487 .change_bss = ieee80211_change_bss,
1488 .set_txq_params = ieee80211_set_txq_params,
1489 .set_channel = ieee80211_set_channel,
1490 .suspend = ieee80211_suspend,
1491 .resume = ieee80211_resume,
1492 .scan = ieee80211_scan,
1493 .auth = ieee80211_auth,
1494 .assoc = ieee80211_assoc,
1495 .deauth = ieee80211_deauth,
1496 .disassoc = ieee80211_disassoc,
1497 .join_ibss = ieee80211_join_ibss,
1498 .leave_ibss = ieee80211_leave_ibss,
1499 .set_wiphy_params = ieee80211_set_wiphy_params,
1500 .set_tx_power = ieee80211_set_tx_power,
1501 .get_tx_power = ieee80211_get_tx_power,
1502 .set_wds_peer = ieee80211_set_wds_peer,
1503 .rfkill_poll = ieee80211_rfkill_poll,
1504 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1505 .set_power_mgmt = ieee80211_set_power_mgmt,
1506 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1507 .remain_on_channel = ieee80211_remain_on_channel,
1508 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1509 .action = ieee80211_action,