2 * mac80211 configuration hooks for cfg80211
4 * Copyright 2006, 2007 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 <net/net_namespace.h>
13 #include <linux/rcupdate.h>
14 #include <net/cfg80211.h>
15 #include "ieee80211_i.h"
20 static bool nl80211_type_check(enum nl80211_iftype type)
23 case NL80211_IFTYPE_ADHOC:
24 case NL80211_IFTYPE_STATION:
25 case NL80211_IFTYPE_MONITOR:
26 #ifdef CONFIG_MAC80211_MESH
27 case NL80211_IFTYPE_MESH_POINT:
29 case NL80211_IFTYPE_AP:
30 case NL80211_IFTYPE_AP_VLAN:
31 case NL80211_IFTYPE_WDS:
38 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
39 enum nl80211_iftype type, u32 *flags,
40 struct vif_params *params)
42 struct ieee80211_local *local = wiphy_priv(wiphy);
43 struct net_device *dev;
44 struct ieee80211_sub_if_data *sdata;
47 if (!nl80211_type_check(type))
50 err = ieee80211_if_add(local, name, &dev, type, params);
51 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
54 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55 sdata->u.mntr_flags = *flags;
59 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
61 struct net_device *dev;
62 struct ieee80211_sub_if_data *sdata;
64 /* we're under RTNL */
65 dev = __dev_get_by_index(&init_net, ifindex);
69 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
71 ieee80211_if_remove(sdata);
76 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
77 enum nl80211_iftype type, u32 *flags,
78 struct vif_params *params)
80 struct net_device *dev;
81 struct ieee80211_sub_if_data *sdata;
84 /* we're under RTNL */
85 dev = __dev_get_by_index(&init_net, ifindex);
89 if (!nl80211_type_check(type))
92 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
94 ret = ieee80211_if_change_type(sdata, type);
98 if (netif_running(sdata->dev))
101 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
102 ieee80211_sdata_set_mesh_id(sdata,
106 if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
109 sdata->u.mntr_flags = *flags;
113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
114 u8 key_idx, u8 *mac_addr,
115 struct key_params *params)
117 struct ieee80211_sub_if_data *sdata;
118 struct sta_info *sta = NULL;
119 enum ieee80211_key_alg alg;
120 struct ieee80211_key *key;
123 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
125 switch (params->cipher) {
126 case WLAN_CIPHER_SUITE_WEP40:
127 case WLAN_CIPHER_SUITE_WEP104:
130 case WLAN_CIPHER_SUITE_TKIP:
133 case WLAN_CIPHER_SUITE_CCMP:
136 case WLAN_CIPHER_SUITE_AES_CMAC:
143 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
150 sta = sta_info_get(sdata->local, mac_addr);
152 ieee80211_key_free(key);
158 ieee80211_key_link(key, sdata, sta);
167 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
168 u8 key_idx, u8 *mac_addr)
170 struct ieee80211_sub_if_data *sdata;
171 struct sta_info *sta;
174 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
181 sta = sta_info_get(sdata->local, mac_addr);
186 ieee80211_key_free(sta->key);
194 if (!sdata->keys[key_idx]) {
199 ieee80211_key_free(sdata->keys[key_idx]);
200 WARN_ON(sdata->keys[key_idx]);
209 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
210 u8 key_idx, u8 *mac_addr, void *cookie,
211 void (*callback)(void *cookie,
212 struct key_params *params))
214 struct ieee80211_sub_if_data *sdata;
215 struct sta_info *sta = NULL;
217 struct key_params params;
218 struct ieee80211_key *key;
223 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
228 sta = sta_info_get(sdata->local, mac_addr);
234 key = sdata->keys[key_idx];
239 memset(¶ms, 0, sizeof(params));
241 switch (key->conf.alg) {
243 params.cipher = WLAN_CIPHER_SUITE_TKIP;
245 iv32 = key->u.tkip.tx.iv32;
246 iv16 = key->u.tkip.tx.iv16;
248 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
249 sdata->local->ops->get_tkip_seq)
250 sdata->local->ops->get_tkip_seq(
251 local_to_hw(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->filled = STATION_INFO_INACTIVE_TIME |
342 STATION_INFO_RX_BYTES |
343 STATION_INFO_TX_BYTES |
344 STATION_INFO_RX_PACKETS |
345 STATION_INFO_TX_PACKETS |
346 STATION_INFO_TX_BITRATE;
348 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
349 sinfo->rx_bytes = sta->rx_bytes;
350 sinfo->tx_bytes = sta->tx_bytes;
351 sinfo->rx_packets = sta->rx_packets;
352 sinfo->tx_packets = sta->tx_packets;
354 if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
355 sinfo->filled |= STATION_INFO_SIGNAL;
356 sinfo->signal = (s8)sta->last_signal;
359 sinfo->txrate.flags = 0;
360 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
361 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
362 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
363 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
364 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
365 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
367 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
368 struct ieee80211_supported_band *sband;
369 sband = sta->local->hw.wiphy->bands[
370 sta->local->hw.conf.channel->band];
371 sinfo->txrate.legacy =
372 sband->bitrates[sta->last_tx_rate.idx].bitrate;
374 sinfo->txrate.mcs = sta->last_tx_rate.idx;
376 if (ieee80211_vif_is_mesh(&sdata->vif)) {
377 #ifdef CONFIG_MAC80211_MESH
378 sinfo->filled |= STATION_INFO_LLID |
380 STATION_INFO_PLINK_STATE;
382 sinfo->llid = le16_to_cpu(sta->llid);
383 sinfo->plid = le16_to_cpu(sta->plid);
384 sinfo->plink_state = sta->plink_state;
390 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
391 int idx, u8 *mac, struct station_info *sinfo)
393 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
394 struct sta_info *sta;
399 sta = sta_info_get_by_idx(local, idx, dev);
402 memcpy(mac, sta->sta.addr, ETH_ALEN);
403 sta_set_sinfo(sta, sinfo);
411 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
412 u8 *mac, struct station_info *sinfo)
414 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
415 struct sta_info *sta;
420 /* XXX: verify sta->dev == dev */
422 sta = sta_info_get(local, mac);
425 sta_set_sinfo(sta, sinfo);
434 * This handles both adding a beacon and setting new beacon info
436 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
437 struct beacon_parameters *params)
439 struct beacon_data *new, *old;
440 int new_head_len, new_tail_len;
444 old = sdata->u.ap.beacon;
446 /* head must not be zero-length */
447 if (params->head && !params->head_len)
451 * This is a kludge. beacon interval should really be part
452 * of the beacon information.
454 if (params->interval && (sdata->local->hw.conf.beacon_int !=
456 sdata->local->hw.conf.beacon_int = params->interval;
457 err = ieee80211_hw_config(sdata->local,
458 IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
462 * We updated some parameter so if below bails out
468 /* Need to have a beacon head if we don't have one yet */
469 if (!params->head && !old)
472 /* sorry, no way to start beaconing without dtim period */
473 if (!params->dtim_period && !old)
476 /* new or old head? */
478 new_head_len = params->head_len;
480 new_head_len = old->head_len;
482 /* new or old tail? */
483 if (params->tail || !old)
484 /* params->tail_len will be zero for !params->tail */
485 new_tail_len = params->tail_len;
487 new_tail_len = old->tail_len;
489 size = sizeof(*new) + new_head_len + new_tail_len;
491 new = kzalloc(size, GFP_KERNEL);
495 /* start filling the new info now */
497 /* new or old dtim period? */
498 if (params->dtim_period)
499 new->dtim_period = params->dtim_period;
501 new->dtim_period = old->dtim_period;
504 * pointers go into the block we allocated,
505 * memory is | beacon_data | head | tail |
507 new->head = ((u8 *) new) + sizeof(*new);
508 new->tail = new->head + new_head_len;
509 new->head_len = new_head_len;
510 new->tail_len = new_tail_len;
514 memcpy(new->head, params->head, new_head_len);
516 memcpy(new->head, old->head, new_head_len);
518 /* copy in optional tail */
520 memcpy(new->tail, params->tail, new_tail_len);
523 memcpy(new->tail, old->tail, new_tail_len);
525 rcu_assign_pointer(sdata->u.ap.beacon, new);
531 return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
532 IEEE80211_IFCC_BEACON_ENABLED);
535 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
536 struct beacon_parameters *params)
538 struct ieee80211_sub_if_data *sdata;
539 struct beacon_data *old;
541 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
543 if (sdata->vif.type != NL80211_IFTYPE_AP)
546 old = sdata->u.ap.beacon;
551 return ieee80211_config_beacon(sdata, params);
554 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
555 struct beacon_parameters *params)
557 struct ieee80211_sub_if_data *sdata;
558 struct beacon_data *old;
560 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
562 if (sdata->vif.type != NL80211_IFTYPE_AP)
565 old = sdata->u.ap.beacon;
570 return ieee80211_config_beacon(sdata, params);
573 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
575 struct ieee80211_sub_if_data *sdata;
576 struct beacon_data *old;
578 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
580 if (sdata->vif.type != NL80211_IFTYPE_AP)
583 old = sdata->u.ap.beacon;
588 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
592 return ieee80211_if_config(sdata, IEEE80211_IFCC_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;
648 sband = local->hw.wiphy->bands[local->oper_channel->band];
651 * FIXME: updating the flags is racy when this function is
652 * called from ieee80211_change_station(), this will
653 * be resolved in a future patch.
656 if (params->station_flags & STATION_FLAG_CHANGED) {
657 spin_lock_bh(&sta->lock);
658 sta->flags &= ~WLAN_STA_AUTHORIZED;
659 if (params->station_flags & STATION_FLAG_AUTHORIZED)
660 sta->flags |= WLAN_STA_AUTHORIZED;
662 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
663 if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
664 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
666 sta->flags &= ~WLAN_STA_WME;
667 if (params->station_flags & STATION_FLAG_WME)
668 sta->flags |= WLAN_STA_WME;
670 sta->flags &= ~WLAN_STA_MFP;
671 if (params->station_flags & STATION_FLAG_MFP)
672 sta->flags |= WLAN_STA_MFP;
673 spin_unlock_bh(&sta->lock);
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.
684 sta->sta.aid = params->aid;
685 if (sta->sta.aid > IEEE80211_MAX_AID)
686 sta->sta.aid = 0; /* XXX: should this be an error? */
689 if (params->listen_interval >= 0)
690 sta->listen_interval = params->listen_interval;
692 if (params->supported_rates) {
695 for (i = 0; i < params->supported_rates_len; i++) {
696 int rate = (params->supported_rates[i] & 0x7f) * 5;
697 for (j = 0; j < sband->n_bitrates; j++) {
698 if (sband->bitrates[j].bitrate == rate)
702 sta->sta.supp_rates[local->oper_channel->band] = rates;
706 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
710 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
711 switch (params->plink_action) {
712 case PLINK_ACTION_OPEN:
713 mesh_plink_open(sta);
715 case PLINK_ACTION_BLOCK:
716 mesh_plink_block(sta);
722 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
723 u8 *mac, struct station_parameters *params)
725 struct ieee80211_local *local = wiphy_priv(wiphy);
726 struct sta_info *sta;
727 struct ieee80211_sub_if_data *sdata;
731 /* Prevent a race with changing the rate control algorithm */
732 if (!netif_running(dev))
736 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
738 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
739 sdata->vif.type != NL80211_IFTYPE_AP)
742 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
744 if (compare_ether_addr(mac, dev->dev_addr) == 0)
747 if (is_multicast_ether_addr(mac))
750 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
754 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
756 sta_apply_parameters(local, sta, params);
758 rate_control_rate_init(sta);
760 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
761 sdata->vif.type == NL80211_IFTYPE_AP;
765 err = sta_info_insert(sta);
767 /* STA has been freed */
768 if (err == -EEXIST && layer2_update) {
769 /* Need to update layer 2 devices on reassociation */
770 sta = sta_info_get(local, mac);
772 ieee80211_send_layer2_update(sta);
779 ieee80211_send_layer2_update(sta);
786 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
789 struct ieee80211_local *local = wiphy_priv(wiphy);
790 struct ieee80211_sub_if_data *sdata;
791 struct sta_info *sta;
793 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
798 /* XXX: get sta belonging to dev */
799 sta = sta_info_get(local, mac);
805 sta_info_unlink(&sta);
808 sta_info_destroy(sta);
810 sta_info_flush(local, sdata);
815 static int ieee80211_change_station(struct wiphy *wiphy,
816 struct net_device *dev,
818 struct station_parameters *params)
820 struct ieee80211_local *local = wiphy_priv(wiphy);
821 struct sta_info *sta;
822 struct ieee80211_sub_if_data *vlansdata;
826 /* XXX: get sta belonging to dev */
827 sta = sta_info_get(local, mac);
833 if (params->vlan && params->vlan != sta->sdata->dev) {
834 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
836 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
837 vlansdata->vif.type != NL80211_IFTYPE_AP) {
842 sta->sdata = vlansdata;
843 ieee80211_send_layer2_update(sta);
846 sta_apply_parameters(local, sta, params);
853 #ifdef CONFIG_MAC80211_MESH
854 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
855 u8 *dst, u8 *next_hop)
857 struct ieee80211_local *local = wiphy_priv(wiphy);
858 struct ieee80211_sub_if_data *sdata;
859 struct mesh_path *mpath;
860 struct sta_info *sta;
863 if (!netif_running(dev))
866 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
868 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
872 sta = sta_info_get(local, next_hop);
878 err = mesh_path_add(dst, sdata);
884 mpath = mesh_path_lookup(dst, sdata);
889 mesh_path_fix_nexthop(mpath, sta);
895 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
901 return mesh_path_del(dst, sdata);
903 mesh_path_flush(sdata);
907 static int ieee80211_change_mpath(struct wiphy *wiphy,
908 struct net_device *dev,
909 u8 *dst, u8 *next_hop)
911 struct ieee80211_local *local = wiphy_priv(wiphy);
912 struct ieee80211_sub_if_data *sdata;
913 struct mesh_path *mpath;
914 struct sta_info *sta;
916 if (!netif_running(dev))
919 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
921 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
926 sta = sta_info_get(local, next_hop);
932 mpath = mesh_path_lookup(dst, sdata);
938 mesh_path_fix_nexthop(mpath, sta);
944 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
945 struct mpath_info *pinfo)
948 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
950 memset(next_hop, 0, ETH_ALEN);
952 pinfo->filled = MPATH_INFO_FRAME_QLEN |
956 MPATH_INFO_DISCOVERY_TIMEOUT |
957 MPATH_INFO_DISCOVERY_RETRIES |
960 pinfo->frame_qlen = mpath->frame_queue.qlen;
961 pinfo->dsn = mpath->dsn;
962 pinfo->metric = mpath->metric;
963 if (time_before(jiffies, mpath->exp_time))
964 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
965 pinfo->discovery_timeout =
966 jiffies_to_msecs(mpath->discovery_timeout);
967 pinfo->discovery_retries = mpath->discovery_retries;
969 if (mpath->flags & MESH_PATH_ACTIVE)
970 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
971 if (mpath->flags & MESH_PATH_RESOLVING)
972 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
973 if (mpath->flags & MESH_PATH_DSN_VALID)
974 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
975 if (mpath->flags & MESH_PATH_FIXED)
976 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
977 if (mpath->flags & MESH_PATH_RESOLVING)
978 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
980 pinfo->flags = mpath->flags;
983 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
984 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
987 struct ieee80211_sub_if_data *sdata;
988 struct mesh_path *mpath;
990 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
992 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
996 mpath = mesh_path_lookup(dst, sdata);
1001 memcpy(dst, mpath->dst, ETH_ALEN);
1002 mpath_set_pinfo(mpath, next_hop, pinfo);
1007 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1008 int idx, u8 *dst, u8 *next_hop,
1009 struct mpath_info *pinfo)
1011 struct ieee80211_sub_if_data *sdata;
1012 struct mesh_path *mpath;
1014 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1016 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1020 mpath = mesh_path_lookup_by_idx(idx, sdata);
1025 memcpy(dst, mpath->dst, ETH_ALEN);
1026 mpath_set_pinfo(mpath, next_hop, pinfo);
1031 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1032 struct net_device *dev,
1033 struct mesh_config *conf)
1035 struct ieee80211_sub_if_data *sdata;
1036 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1038 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1040 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1044 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1046 return (mask >> (parm-1)) & 0x1;
1049 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1050 struct net_device *dev,
1051 const struct mesh_config *nconf, u32 mask)
1053 struct mesh_config *conf;
1054 struct ieee80211_sub_if_data *sdata;
1055 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1057 if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1060 /* Set the config options which we are interested in setting */
1061 conf = &(sdata->u.mesh.mshcfg);
1062 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1063 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1064 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1065 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1066 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1067 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1068 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1069 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1070 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1071 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1072 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1073 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1074 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1075 conf->auto_open_plinks = nconf->auto_open_plinks;
1076 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1077 conf->dot11MeshHWMPmaxPREQretries =
1078 nconf->dot11MeshHWMPmaxPREQretries;
1079 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1080 conf->path_refresh_time = nconf->path_refresh_time;
1081 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1082 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1083 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1084 conf->dot11MeshHWMPactivePathTimeout =
1085 nconf->dot11MeshHWMPactivePathTimeout;
1086 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1087 conf->dot11MeshHWMPpreqMinInterval =
1088 nconf->dot11MeshHWMPpreqMinInterval;
1089 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1091 conf->dot11MeshHWMPnetDiameterTraversalTime =
1092 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1098 static int ieee80211_change_bss(struct wiphy *wiphy,
1099 struct net_device *dev,
1100 struct bss_parameters *params)
1102 struct ieee80211_sub_if_data *sdata;
1105 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1107 if (sdata->vif.type != NL80211_IFTYPE_AP)
1110 if (params->use_cts_prot >= 0) {
1111 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1112 changed |= BSS_CHANGED_ERP_CTS_PROT;
1114 if (params->use_short_preamble >= 0) {
1115 sdata->vif.bss_conf.use_short_preamble =
1116 params->use_short_preamble;
1117 changed |= BSS_CHANGED_ERP_PREAMBLE;
1119 if (params->use_short_slot_time >= 0) {
1120 sdata->vif.bss_conf.use_short_slot =
1121 params->use_short_slot_time;
1122 changed |= BSS_CHANGED_ERP_SLOT;
1125 if (params->basic_rates) {
1128 struct ieee80211_local *local = wiphy_priv(wiphy);
1129 struct ieee80211_supported_band *sband =
1130 wiphy->bands[local->oper_channel->band];
1132 for (i = 0; i < params->basic_rates_len; i++) {
1133 int rate = (params->basic_rates[i] & 0x7f) * 5;
1134 for (j = 0; j < sband->n_bitrates; j++) {
1135 if (sband->bitrates[j].bitrate == rate)
1139 sdata->vif.bss_conf.basic_rates = rates;
1140 changed |= BSS_CHANGED_BASIC_RATES;
1143 ieee80211_bss_info_change_notify(sdata, changed);
1148 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1149 struct ieee80211_txq_params *params)
1151 struct ieee80211_local *local = wiphy_priv(wiphy);
1152 struct ieee80211_tx_queue_params p;
1154 if (!local->ops->conf_tx)
1157 memset(&p, 0, sizeof(p));
1158 p.aifs = params->aifs;
1159 p.cw_max = params->cwmax;
1160 p.cw_min = params->cwmin;
1161 p.txop = params->txop;
1162 if (local->ops->conf_tx(local_to_hw(local), params->queue, &p)) {
1163 printk(KERN_DEBUG "%s: failed to set TX queue "
1164 "parameters for queue %d\n", local->mdev->name,
1172 static int ieee80211_set_channel(struct wiphy *wiphy,
1173 struct ieee80211_channel *chan,
1174 enum nl80211_channel_type channel_type)
1176 struct ieee80211_local *local = wiphy_priv(wiphy);
1178 local->oper_channel = chan;
1179 local->oper_channel_type = channel_type;
1181 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1184 static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
1185 u8 subtype, u8 *ies, size_t ies_len)
1187 struct ieee80211_local *local = sdata->local;
1188 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
1191 case IEEE80211_STYPE_PROBE_REQ >> 4:
1192 if (local->ops->hw_scan)
1194 kfree(ifmgd->ie_probereq);
1195 ifmgd->ie_probereq = ies;
1196 ifmgd->ie_probereq_len = ies_len;
1198 case IEEE80211_STYPE_PROBE_RESP >> 4:
1199 kfree(ifmgd->ie_proberesp);
1200 ifmgd->ie_proberesp = ies;
1201 ifmgd->ie_proberesp_len = ies_len;
1203 case IEEE80211_STYPE_AUTH >> 4:
1204 kfree(ifmgd->ie_auth);
1205 ifmgd->ie_auth = ies;
1206 ifmgd->ie_auth_len = ies_len;
1208 case IEEE80211_STYPE_ASSOC_REQ >> 4:
1209 kfree(ifmgd->ie_assocreq);
1210 ifmgd->ie_assocreq = ies;
1211 ifmgd->ie_assocreq_len = ies_len;
1213 case IEEE80211_STYPE_REASSOC_REQ >> 4:
1214 kfree(ifmgd->ie_reassocreq);
1215 ifmgd->ie_reassocreq = ies;
1216 ifmgd->ie_reassocreq_len = ies_len;
1218 case IEEE80211_STYPE_DEAUTH >> 4:
1219 kfree(ifmgd->ie_deauth);
1220 ifmgd->ie_deauth = ies;
1221 ifmgd->ie_deauth_len = ies_len;
1223 case IEEE80211_STYPE_DISASSOC >> 4:
1224 kfree(ifmgd->ie_disassoc);
1225 ifmgd->ie_disassoc = ies;
1226 ifmgd->ie_disassoc_len = ies_len;
1233 static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
1234 struct net_device *dev,
1235 struct mgmt_extra_ie_params *params)
1237 struct ieee80211_sub_if_data *sdata;
1240 int ret = -EOPNOTSUPP;
1243 ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
1246 ies_len = params->ies_len;
1252 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1254 switch (sdata->vif.type) {
1255 case NL80211_IFTYPE_STATION:
1256 ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
1270 static int ieee80211_suspend(struct wiphy *wiphy)
1272 return __ieee80211_suspend(wiphy_priv(wiphy));
1275 static int ieee80211_resume(struct wiphy *wiphy)
1277 return __ieee80211_resume(wiphy_priv(wiphy));
1280 #define ieee80211_suspend NULL
1281 #define ieee80211_resume NULL
1284 static int ieee80211_scan(struct wiphy *wiphy,
1285 struct net_device *dev,
1286 struct cfg80211_scan_request *req)
1288 struct ieee80211_sub_if_data *sdata;
1290 if (!netif_running(dev))
1293 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1295 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1296 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1297 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1300 return ieee80211_request_scan(sdata, req);
1303 struct cfg80211_ops mac80211_config_ops = {
1304 .add_virtual_intf = ieee80211_add_iface,
1305 .del_virtual_intf = ieee80211_del_iface,
1306 .change_virtual_intf = ieee80211_change_iface,
1307 .add_key = ieee80211_add_key,
1308 .del_key = ieee80211_del_key,
1309 .get_key = ieee80211_get_key,
1310 .set_default_key = ieee80211_config_default_key,
1311 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1312 .add_beacon = ieee80211_add_beacon,
1313 .set_beacon = ieee80211_set_beacon,
1314 .del_beacon = ieee80211_del_beacon,
1315 .add_station = ieee80211_add_station,
1316 .del_station = ieee80211_del_station,
1317 .change_station = ieee80211_change_station,
1318 .get_station = ieee80211_get_station,
1319 .dump_station = ieee80211_dump_station,
1320 #ifdef CONFIG_MAC80211_MESH
1321 .add_mpath = ieee80211_add_mpath,
1322 .del_mpath = ieee80211_del_mpath,
1323 .change_mpath = ieee80211_change_mpath,
1324 .get_mpath = ieee80211_get_mpath,
1325 .dump_mpath = ieee80211_dump_mpath,
1326 .set_mesh_params = ieee80211_set_mesh_params,
1327 .get_mesh_params = ieee80211_get_mesh_params,
1329 .change_bss = ieee80211_change_bss,
1330 .set_txq_params = ieee80211_set_txq_params,
1331 .set_channel = ieee80211_set_channel,
1332 .set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
1333 .suspend = ieee80211_suspend,
1334 .resume = ieee80211_resume,
1335 .scan = ieee80211_scan,