2 * Copyright (c) 2008, 2009 open80211s Ltd.
3 * Authors: Luis Carlos Cobo <luisca@cozybit.com>
4 * Javier Cardona <javier@cozybit.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/slab.h>
12 #include <asm/unaligned.h>
13 #include "ieee80211_i.h"
16 #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
17 #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
18 #define IEEE80211_MESH_RANN_INTERVAL (1 * HZ)
20 #define MESHCONF_CAPAB_ACCEPT_PLINKS 0x01
21 #define MESHCONF_CAPAB_FORWARDING 0x08
23 #define TMR_RUNNING_HK 0
24 #define TMR_RUNNING_MP 1
25 #define TMR_RUNNING_MPR 2
28 static struct kmem_cache *rm_cache;
30 void ieee80211s_init(void)
34 rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry),
38 void ieee80211s_stop(void)
40 mesh_pathtbl_unregister();
41 kmem_cache_destroy(rm_cache);
44 static void ieee80211_mesh_housekeeping_timer(unsigned long data)
46 struct ieee80211_sub_if_data *sdata = (void *) data;
47 struct ieee80211_local *local = sdata->local;
48 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
50 set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags);
52 if (local->quiescing) {
53 set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
57 ieee80211_queue_work(&local->hw, &sdata->work);
61 * mesh_matches_local - check if the config of a mesh point matches ours
63 * @ie: information elements of a management frame from the mesh peer
64 * @sdata: local mesh subif
66 * This function checks if the mesh configuration of a mesh point matches the
67 * local mesh configuration, i.e. if both nodes belong to the same mesh network.
69 bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata)
71 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
74 * As support for each feature is added, check for matching
75 * - On mesh config capabilities
76 * - Power Save Support En
77 * - Sync support enabled
78 * - Sync support active
79 * - Sync support required from peer
81 * - Power management control on fc
83 if (ifmsh->mesh_id_len == ie->mesh_id_len &&
84 memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
85 (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) &&
86 (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) &&
87 (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) &&
88 (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) &&
89 (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))
96 * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links
98 * @ie: information elements of a management frame from the mesh peer
100 bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
102 return (ie->mesh_config->meshconf_cap &
103 MESHCONF_CAPAB_ACCEPT_PLINKS) != 0;
107 * mesh_accept_plinks_update: update accepting_plink in local mesh beacons
109 * @sdata: mesh interface in which mesh beacons are going to be updated
111 void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
115 /* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0,
116 * the mesh interface might be able to establish plinks with peers that
117 * are already on the table but are not on PLINK_ESTAB state. However,
118 * in general the mesh interface is not accepting peer link requests
119 * from new peers, and that must be reflected in the beacon
121 free_plinks = mesh_plink_availables(sdata);
123 if (free_plinks != sdata->u.mesh.accepting_plinks)
124 ieee80211_mesh_housekeeping_timer((unsigned long) sdata);
127 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
131 sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL);
132 if (!sdata->u.mesh.rmc)
134 sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1;
135 for (i = 0; i < RMC_BUCKETS; i++)
136 INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list);
140 void mesh_rmc_free(struct ieee80211_sub_if_data *sdata)
142 struct mesh_rmc *rmc = sdata->u.mesh.rmc;
143 struct rmc_entry *p, *n;
146 if (!sdata->u.mesh.rmc)
149 for (i = 0; i < RMC_BUCKETS; i++)
150 list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) {
152 kmem_cache_free(rm_cache, p);
156 sdata->u.mesh.rmc = NULL;
160 * mesh_rmc_check - Check frame in recent multicast cache and add if absent.
162 * @sa: source address
163 * @mesh_hdr: mesh_header
165 * Returns: 0 if the frame is not in the cache, nonzero otherwise.
167 * Checks using the source address and the mesh sequence number if we have
168 * received this frame lately. If the frame is not in the cache, it is added to
171 int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
172 struct ieee80211_sub_if_data *sdata)
174 struct mesh_rmc *rmc = sdata->u.mesh.rmc;
178 struct rmc_entry *p, *n;
180 /* Don't care about endianness since only match matters */
181 memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
182 idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask;
183 list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) {
185 if (time_after(jiffies, p->exp_time) ||
186 (entries == RMC_QUEUE_MAX_LEN)) {
188 kmem_cache_free(rm_cache, p);
190 } else if ((seqnum == p->seqnum) &&
191 (memcmp(sa, p->sa, ETH_ALEN) == 0))
195 p = kmem_cache_alloc(rm_cache, GFP_ATOMIC);
197 printk(KERN_DEBUG "o11s: could not allocate RMC entry\n");
201 p->exp_time = jiffies + RMC_TIMEOUT;
202 memcpy(p->sa, sa, ETH_ALEN);
203 list_add(&p->list, &rmc->bucket[idx].list);
208 mesh_add_meshconf_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
210 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
212 u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie);
214 if (skb_tailroom(skb) < 2 + meshconf_len)
217 pos = skb_put(skb, 2 + meshconf_len);
218 *pos++ = WLAN_EID_MESH_CONFIG;
219 *pos++ = meshconf_len;
221 /* Active path selection protocol ID */
222 *pos++ = ifmsh->mesh_pp_id;
223 /* Active path selection metric ID */
224 *pos++ = ifmsh->mesh_pm_id;
225 /* Congestion control mode identifier */
226 *pos++ = ifmsh->mesh_cc_id;
227 /* Synchronization protocol identifier */
228 *pos++ = ifmsh->mesh_sp_id;
229 /* Authentication Protocol identifier */
230 *pos++ = ifmsh->mesh_auth_id;
231 /* Mesh Formation Info - number of neighbors */
232 neighbors = atomic_read(&ifmsh->mshstats.estab_plinks);
233 /* Number of neighbor mesh STAs or 15 whichever is smaller */
234 neighbors = (neighbors > 15) ? 15 : neighbors;
235 *pos++ = neighbors << 1;
236 /* Mesh capability */
237 ifmsh->accepting_plinks = mesh_plink_availables(sdata);
238 *pos = MESHCONF_CAPAB_FORWARDING;
239 *pos++ |= ifmsh->accepting_plinks ?
240 MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
247 mesh_add_meshid_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
249 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
252 if (skb_tailroom(skb) < 2 + ifmsh->mesh_id_len)
255 pos = skb_put(skb, 2 + ifmsh->mesh_id_len);
256 *pos++ = WLAN_EID_MESH_ID;
257 *pos++ = ifmsh->mesh_id_len;
258 if (ifmsh->mesh_id_len)
259 memcpy(pos, ifmsh->mesh_id, ifmsh->mesh_id_len);
265 mesh_add_vendor_ies(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
267 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
271 if (!ifmsh->ie || !ifmsh->ie_len)
274 /* fast-forward to vendor IEs */
275 offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0);
278 len = ifmsh->ie_len - offset;
279 data = ifmsh->ie + offset;
280 if (skb_tailroom(skb) < len)
282 memcpy(skb_put(skb, len), data, len);
289 mesh_add_rsn_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
291 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
295 if (!ifmsh->ie || !ifmsh->ie_len)
300 while (data < ifmsh->ie + ifmsh->ie_len) {
301 if (*data == WLAN_EID_RSN) {
309 if (skb_tailroom(skb) < len)
311 memcpy(skb_put(skb, len), data, len);
318 mesh_add_srates_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
320 struct ieee80211_local *local = sdata->local;
321 struct ieee80211_supported_band *sband;
325 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
326 rates = sband->n_bitrates;
330 if (skb_tailroom(skb) < rates + 2)
333 pos = skb_put(skb, rates + 2);
334 *pos++ = WLAN_EID_SUPP_RATES;
336 for (i = 0; i < rates; i++) {
337 rate = sband->bitrates[i].bitrate;
338 *pos++ = (u8) (rate / 5);
345 mesh_add_ext_srates_ie(struct sk_buff *skb,
346 struct ieee80211_sub_if_data *sdata)
348 struct ieee80211_local *local = sdata->local;
349 struct ieee80211_supported_band *sband;
353 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
354 exrates = sband->n_bitrates;
360 if (skb_tailroom(skb) < exrates + 2)
364 pos = skb_put(skb, exrates + 2);
365 *pos++ = WLAN_EID_EXT_SUPP_RATES;
367 for (i = 8; i < sband->n_bitrates; i++) {
368 rate = sband->bitrates[i].bitrate;
369 *pos++ = (u8) (rate / 5);
375 int mesh_add_ds_params_ie(struct sk_buff *skb,
376 struct ieee80211_sub_if_data *sdata)
378 struct ieee80211_local *local = sdata->local;
379 struct ieee80211_supported_band *sband;
382 if (skb_tailroom(skb) < 3)
385 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
386 if (sband->band == IEEE80211_BAND_2GHZ) {
387 pos = skb_put(skb, 2 + 1);
388 *pos++ = WLAN_EID_DS_PARAMS;
390 *pos++ = ieee80211_frequency_to_channel(local->hw.conf.channel->center_freq);
396 static void ieee80211_mesh_path_timer(unsigned long data)
398 struct ieee80211_sub_if_data *sdata =
399 (struct ieee80211_sub_if_data *) data;
400 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
401 struct ieee80211_local *local = sdata->local;
403 if (local->quiescing) {
404 set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
408 ieee80211_queue_work(&local->hw, &sdata->work);
411 static void ieee80211_mesh_path_root_timer(unsigned long data)
413 struct ieee80211_sub_if_data *sdata =
414 (struct ieee80211_sub_if_data *) data;
415 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
416 struct ieee80211_local *local = sdata->local;
418 set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
420 if (local->quiescing) {
421 set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
425 ieee80211_queue_work(&local->hw, &sdata->work);
428 void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh)
430 if (ifmsh->mshcfg.dot11MeshHWMPRootMode)
431 set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
433 clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
434 /* stop running timer */
435 del_timer_sync(&ifmsh->mesh_path_root_timer);
440 * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame
441 * @hdr: 802.11 frame header
442 * @fc: frame control field
443 * @meshda: destination address in the mesh
444 * @meshsa: source address address in the mesh. Same as TA, as frame is
445 * locally originated.
447 * Return the length of the 802.11 (does not include a mesh control header)
449 int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc,
450 const u8 *meshda, const u8 *meshsa)
452 if (is_multicast_ether_addr(meshda)) {
453 *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
455 memcpy(hdr->addr1, meshda, ETH_ALEN);
456 memcpy(hdr->addr2, meshsa, ETH_ALEN);
457 memcpy(hdr->addr3, meshsa, ETH_ALEN);
460 *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
461 IEEE80211_FCTL_TODS);
463 memset(hdr->addr1, 0, ETH_ALEN); /* RA is resolved later */
464 memcpy(hdr->addr2, meshsa, ETH_ALEN);
465 memcpy(hdr->addr3, meshda, ETH_ALEN);
466 memcpy(hdr->addr4, meshsa, ETH_ALEN);
472 * ieee80211_new_mesh_header - create a new mesh header
473 * @meshhdr: uninitialized mesh header
474 * @sdata: mesh interface to be used
475 * @addr4or5: 1st address in the ae header, which may correspond to address 4
476 * (if addr6 is NULL) or address 5 (if addr6 is present). It may
478 * @addr6: 2nd address in the ae header, which corresponds to addr6 of the
481 * Return the header length.
483 int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
484 struct ieee80211_sub_if_data *sdata, char *addr4or5,
488 BUG_ON(!addr4or5 && addr6);
489 memset(meshhdr, 0, sizeof(*meshhdr));
490 meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
491 put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum);
492 sdata->u.mesh.mesh_seqnum++;
493 if (addr4or5 && !addr6) {
494 meshhdr->flags |= MESH_FLAGS_AE_A4;
496 memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN);
497 } else if (addr4or5 && addr6) {
498 meshhdr->flags |= MESH_FLAGS_AE_A5_A6;
499 aelen += 2 * ETH_ALEN;
500 memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN);
501 memcpy(meshhdr->eaddr2, addr6, ETH_ALEN);
506 static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
507 struct ieee80211_if_mesh *ifmsh)
511 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
512 printk(KERN_DEBUG "%s: running mesh housekeeping\n",
516 ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
517 mesh_path_expire(sdata);
519 free_plinks = mesh_plink_availables(sdata);
520 if (free_plinks != sdata->u.mesh.accepting_plinks)
521 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
523 mod_timer(&ifmsh->housekeeping_timer,
524 round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
527 static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata)
529 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
531 mesh_path_tx_root_frame(sdata);
532 mod_timer(&ifmsh->mesh_path_root_timer,
533 round_jiffies(jiffies + IEEE80211_MESH_RANN_INTERVAL));
537 void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
539 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
541 /* use atomic bitops in case both timers fire at the same time */
543 if (del_timer_sync(&ifmsh->housekeeping_timer))
544 set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
545 if (del_timer_sync(&ifmsh->mesh_path_timer))
546 set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
547 if (del_timer_sync(&ifmsh->mesh_path_root_timer))
548 set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
551 void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
553 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
555 if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running))
556 add_timer(&ifmsh->housekeeping_timer);
557 if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
558 add_timer(&ifmsh->mesh_path_timer);
559 if (test_and_clear_bit(TMR_RUNNING_MPR, &ifmsh->timers_running))
560 add_timer(&ifmsh->mesh_path_root_timer);
561 ieee80211_mesh_root_setup(ifmsh);
565 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
567 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
568 struct ieee80211_local *local = sdata->local;
570 local->fif_other_bss++;
571 /* mesh ifaces must set allmulti to forward mcast traffic */
572 atomic_inc(&local->iff_allmultis);
573 ieee80211_configure_filter(local);
575 ifmsh->mesh_cc_id = 0; /* Disabled */
576 ifmsh->mesh_sp_id = 0; /* Neighbor Offset */
577 ifmsh->mesh_auth_id = 0; /* Disabled */
578 set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags);
579 ieee80211_mesh_root_setup(ifmsh);
580 ieee80211_queue_work(&local->hw, &sdata->work);
581 sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
582 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
583 BSS_CHANGED_BEACON_ENABLED |
584 BSS_CHANGED_BEACON_INT);
587 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
589 struct ieee80211_local *local = sdata->local;
590 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
592 ifmsh->mesh_id_len = 0;
593 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
594 sta_info_flush(local, NULL);
596 del_timer_sync(&sdata->u.mesh.housekeeping_timer);
597 del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
599 * If the timer fired while we waited for it, it will have
600 * requeued the work. Now the work will be running again
601 * but will not rearm the timer again because it checks
602 * whether the interface is running, which, at this point,
605 cancel_work_sync(&sdata->work);
607 local->fif_other_bss--;
608 atomic_dec(&local->iff_allmultis);
609 ieee80211_configure_filter(local);
612 static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
614 struct ieee80211_mgmt *mgmt,
616 struct ieee80211_rx_status *rx_status)
618 struct ieee80211_local *local = sdata->local;
619 struct ieee802_11_elems elems;
620 struct ieee80211_channel *channel;
624 enum ieee80211_band band = rx_status->band;
626 /* ignore ProbeResp to foreign address */
627 if (stype == IEEE80211_STYPE_PROBE_RESP &&
628 compare_ether_addr(mgmt->da, sdata->vif.addr))
631 baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
635 ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
638 /* ignore beacons from secure mesh peers if our security is off */
639 if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE)
642 if (elems.ds_params && elems.ds_params_len == 1)
643 freq = ieee80211_channel_to_frequency(elems.ds_params[0], band);
645 freq = rx_status->freq;
647 channel = ieee80211_get_channel(local->hw.wiphy, freq);
649 if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
652 if (elems.mesh_id && elems.mesh_config &&
653 mesh_matches_local(&elems, sdata)) {
654 supp_rates = ieee80211_sta_get_rates(local, &elems, band);
655 mesh_neighbour_update(mgmt->sa, supp_rates, sdata, &elems);
659 static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
660 struct ieee80211_mgmt *mgmt,
662 struct ieee80211_rx_status *rx_status)
664 switch (mgmt->u.action.category) {
665 case WLAN_CATEGORY_MESH_ACTION:
666 mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
668 case WLAN_CATEGORY_MESH_PATH_SEL:
669 mesh_rx_path_sel_frame(sdata, mgmt, len);
674 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
677 struct ieee80211_rx_status *rx_status;
678 struct ieee80211_mgmt *mgmt;
681 rx_status = IEEE80211_SKB_RXCB(skb);
682 mgmt = (struct ieee80211_mgmt *) skb->data;
683 stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
686 case IEEE80211_STYPE_PROBE_RESP:
687 case IEEE80211_STYPE_BEACON:
688 ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len,
691 case IEEE80211_STYPE_ACTION:
692 ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status);
697 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
699 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
701 if (ifmsh->preq_queue_len &&
703 ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval)))
704 mesh_path_start_discovery(sdata);
706 if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags))
707 mesh_mpath_table_grow();
709 if (test_and_clear_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags))
710 mesh_mpp_table_grow();
712 if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags))
713 ieee80211_mesh_housekeeping(sdata, ifmsh);
715 if (test_and_clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags))
716 ieee80211_mesh_rootpath(sdata);
719 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
721 struct ieee80211_sub_if_data *sdata;
724 list_for_each_entry_rcu(sdata, &local->interfaces, list)
725 if (ieee80211_vif_is_mesh(&sdata->vif))
726 ieee80211_queue_work(&local->hw, &sdata->work);
730 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
732 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
734 setup_timer(&ifmsh->housekeeping_timer,
735 ieee80211_mesh_housekeeping_timer,
736 (unsigned long) sdata);
738 ifmsh->accepting_plinks = true;
741 atomic_set(&ifmsh->mpaths, 0);
742 mesh_rmc_init(sdata);
743 ifmsh->last_preq = jiffies;
744 /* Allocate all mesh structures when creating the first mesh interface. */
747 setup_timer(&ifmsh->mesh_path_timer,
748 ieee80211_mesh_path_timer,
749 (unsigned long) sdata);
750 setup_timer(&ifmsh->mesh_path_root_timer,
751 ieee80211_mesh_path_root_timer,
752 (unsigned long) sdata);
753 INIT_LIST_HEAD(&ifmsh->preq_queue.list);
754 spin_lock_init(&ifmsh->mesh_preq_queue_lock);