mesh.c revision b2e506bfc4d752b68a0ccaae1e977898263eba4c
12e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/* 2264d9b7d8a629620c8de84c614910c3164e935f8Rui Paulo * Copyright (c) 2008, 2009 open80211s Ltd. 32e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Authors: Luis Carlos Cobo <luisca@cozybit.com> 42e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Javier Cardona <javier@cozybit.com> 52e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 62e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * This program is free software; you can redistribute it and/or modify 72e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * it under the terms of the GNU General Public License version 2 as 82e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * published by the Free Software Foundation. 92e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 115a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 1251ceddade0fb1e15f080b2555f3b3e1d68c6707eLuis Carlos Cobo#include <asm/unaligned.h> 132e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo#include "ieee80211_i.h" 142e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo#include "mesh.h" 152e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 16bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergstatic int mesh_allocated; 172e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobostatic struct kmem_cache *rm_cache; 182e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1925d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersenbool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt) 2025d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen{ 2125d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen return (mgmt->u.action.u.mesh_action.action_code == 2225d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen WLAN_MESH_ACTION_HWMP_PATH_SELECTION); 2325d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen} 2425d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen 252e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobovoid ieee80211s_init(void) 262e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_pathtbl_init(); 282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_allocated = 1; 292e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry), 302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 0, 0, NULL); 312e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobovoid ieee80211s_stop(void) 342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 35bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg if (!mesh_allocated) 36bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return; 372e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_pathtbl_unregister(); 382e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_destroy(rm_cache); 392e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 402e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 41472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_housekeeping_timer(unsigned long data) 42472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 43472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_sub_if_data *sdata = (void *) data; 44472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_local *local = sdata->local; 45472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 46472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 476b9ac4425d6ec871faf54540e0f1c5ff420a8f29Rui Paulo set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); 485bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 4964592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 50472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 51472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 522e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 532e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_matches_local - check if the config of a mesh point matches ours 542e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 55f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene * @sdata: local mesh subif 56f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen * @ie: information elements of a management frame from the mesh peer 572e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 582e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * This function checks if the mesh configuration of a mesh point matches the 592e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * local mesh configuration, i.e. if both nodes belong to the same mesh network. 602e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 61f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersenbool mesh_matches_local(struct ieee80211_sub_if_data *sdata, 62f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen struct ieee802_11_elems *ie) 632e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 64472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 65739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen struct ieee80211_local *local = sdata->local; 66f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen u32 basic_rates = 0; 674bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg struct cfg80211_chan_def sta_chan_def; 682e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 692e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* 702e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * As support for each feature is added, check for matching 712e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - On mesh config capabilities 722e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Power Save Support En 732e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support enabled 742e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support active 752e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support required from peer 762e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - MDA enabled 772e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Power management control on fc 782e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 79739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen if (!(ifmsh->mesh_id_len == ie->mesh_id_len && 80739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && 81739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && 82739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && 83739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && 84739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && 85739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) 86bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return false; 87739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen 8855de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata), 89f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen &basic_rates); 90f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen 91fe40cb6274988852aa5a84440d8f81c00cea4028Ashok Nagarajan if (sdata->vif.bss_conf.basic_rates != basic_rates) 92bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return false; 93fe40cb6274988852aa5a84440d8f81c00cea4028Ashok Nagarajan 944bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan, 954bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg ie->ht_operation, &sta_chan_def); 964bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg 974bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef, 984bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg &sta_chan_def)) 99bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return false; 1002e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 101739522baa1d6804a3ff33e8c135db0e6b2165f75Thomas Pedersen return true; 1022e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1032e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1042e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 1052e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links 1062e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 1072e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @ie: information elements of a management frame from the mesh peer 1082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 109f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenebool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) 1102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 111136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo return (ie->mesh_config->meshconf_cap & 112bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; 1132e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1142e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1152e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 1162c53040f018b6c36a46eec75b9b937aaa5f78e6dBen Hutchings * mesh_accept_plinks_update - update accepting_plink in local mesh beacons 1172e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 118d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg * @sdata: mesh interface in which mesh beacons are going to be updated 119df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch * 120df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch * Returns: beacon changed flag if the beacon content changed. 1212e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 122df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porschu32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) 1232e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 1242e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo bool free_plinks; 125df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch u32 changed = 0; 1262e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0, 1282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * the mesh interface might be able to establish plinks with peers that 129b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * are already on the table but are not on PLINK_ESTAB state. However, 130b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * in general the mesh interface is not accepting peer link requests 131b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * from new peers, and that must be reflected in the beacon 1322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 1332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo free_plinks = mesh_plink_availables(sdata); 1342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 135df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch if (free_plinks != sdata->u.mesh.accepting_plinks) { 136df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch sdata->u.mesh.accepting_plinks = free_plinks; 137df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch changed = BSS_CHANGED_BEACON; 138df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch } 139df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch 140df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch return changed; 1412e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1422e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 14345b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen/* 14445b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * mesh_sta_cleanup - clean up any mesh sta state 14545b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * 14645b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * @sta: mesh sta to clean up. 14745b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen */ 14845b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersenvoid mesh_sta_cleanup(struct sta_info *sta) 14945b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen{ 15045b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen struct ieee80211_sub_if_data *sdata = sta->sdata; 15145b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen u32 changed; 15245b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen 15345b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen /* 15445b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * maybe userspace handles peer allocation and peering, but in either 15545b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * case the beacon is still generated by the kernel and we might need 15645b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen * an update. 15745b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen */ 15845b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen changed = mesh_accept_plinks_update(sdata); 159a6dad6a26e15f2f9269eea41b756c8cf0971b2bcThomas Pedersen if (!sdata->u.mesh.user_mpm) { 16045b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen changed |= mesh_plink_deactivate(sta); 16145b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen del_timer_sync(&sta->plink_timer); 16245b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen } 16345b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen 16445b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen if (changed) 1652b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ieee80211_mbss_info_change_notify(sdata, changed); 16645b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen} 16745b5028e86292284f4d5794047d5dfd742c22421Thomas Pedersen 168f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneint mesh_rmc_init(struct ieee80211_sub_if_data *sdata) 1692e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 1702e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int i; 1712e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 172472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL); 173472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!sdata->u.mesh.rmc) 1742e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return -ENOMEM; 175472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; 1762e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = 0; i < RMC_BUCKETS; i++) 177b7cfcd113ac2a1e6b02afc7d283295729fc178a9Thomas Pedersen INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i]); 1782e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 1792e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1802e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 181f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenevoid mesh_rmc_free(struct ieee80211_sub_if_data *sdata) 1822e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 183472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct mesh_rmc *rmc = sdata->u.mesh.rmc; 1842e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct rmc_entry *p, *n; 1852e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int i; 1862e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 187472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!sdata->u.mesh.rmc) 1882e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return; 1892e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 190bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg for (i = 0; i < RMC_BUCKETS; i++) { 191b7cfcd113ac2a1e6b02afc7d283295729fc178a9Thomas Pedersen list_for_each_entry_safe(p, n, &rmc->bucket[i], list) { 1922e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_del(&p->list); 1932e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_free(rm_cache, p); 1942e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 195bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg } 1962e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1972e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kfree(rmc); 198472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc = NULL; 1992e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 2002e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2012e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 2022e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_rmc_check - Check frame in recent multicast cache and add if absent. 2032e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 204bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg * @sdata: interface 2052e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @sa: source address 2062e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @mesh_hdr: mesh_header 2072e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 2082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Returns: 0 if the frame is not in the cache, nonzero otherwise. 2092e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 2102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Checks using the source address and the mesh sequence number if we have 2112e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * received this frame lately. If the frame is not in the cache, it is added to 2122e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * it. 2132e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 214bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_rmc_check(struct ieee80211_sub_if_data *sdata, 215bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg const u8 *sa, struct ieee80211s_hdr *mesh_hdr) 2162e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 217472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct mesh_rmc *rmc = sdata->u.mesh.rmc; 2182e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo u32 seqnum = 0; 2192e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int entries = 0; 2202e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo u8 idx; 2212e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct rmc_entry *p, *n; 2222e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2232e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Don't care about endianness since only match matters */ 22451ceddade0fb1e15f080b2555f3b3e1d68c6707eLuis Carlos Cobo memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); 22551ceddade0fb1e15f080b2555f3b3e1d68c6707eLuis Carlos Cobo idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; 226b7cfcd113ac2a1e6b02afc7d283295729fc178a9Thomas Pedersen list_for_each_entry_safe(p, n, &rmc->bucket[idx], list) { 2272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo ++entries; 2282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (time_after(jiffies, p->exp_time) || 229bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg entries == RMC_QUEUE_MAX_LEN) { 2302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_del(&p->list); 2312e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_free(rm_cache, p); 2322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo --entries; 233bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg } else if ((seqnum == p->seqnum) && ether_addr_equal(sa, p->sa)) 2342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return -1; 2352e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 2362e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2372e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p = kmem_cache_alloc(rm_cache, GFP_ATOMIC); 238d15b84590a1d2ec021ada00a0e67ee5851a0ea2bJoe Perches if (!p) 2392e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 240d15b84590a1d2ec021ada00a0e67ee5851a0ea2bJoe Perches 2412e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p->seqnum = seqnum; 2422e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p->exp_time = jiffies + RMC_TIMEOUT; 2432e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo memcpy(p->sa, sa, ETH_ALEN); 244b7cfcd113ac2a1e6b02afc7d283295729fc178a9Thomas Pedersen list_add(&p->list, &rmc->bucket[idx]); 2452e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 2462e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 2472e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 248bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata, 249bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 250082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen{ 251082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 252082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 *pos, neighbors; 253082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie); 254082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 255082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (skb_tailroom(skb) < 2 + meshconf_len) 256082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return -ENOMEM; 257082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 258082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen pos = skb_put(skb, 2 + meshconf_len); 259082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = WLAN_EID_MESH_CONFIG; 260082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = meshconf_len; 261082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 262082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Active path selection protocol ID */ 263082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_pp_id; 264082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Active path selection metric ID */ 265082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_pm_id; 266082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Congestion control mode identifier */ 267082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_cc_id; 268082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Synchronization protocol identifier */ 269082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_sp_id; 270082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Authentication Protocol identifier */ 271082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_auth_id; 272082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Mesh Formation Info - number of neighbors */ 2731258d97616fdca9abc0c21f2edeb1d5b21dcb128Ashok Nagarajan neighbors = atomic_read(&ifmsh->estab_plinks); 274082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Number of neighbor mesh STAs or 15 whichever is smaller */ 275082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen neighbors = (neighbors > 15) ? 15 : neighbors; 276082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = neighbors << 1; 277082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* Mesh capability */ 27865821635d26d3173a3b22781e2c60d5e6fcaeb22Marco Porsch *pos = IEEE80211_MESHCONF_CAPAB_FORWARDING; 279dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona *pos |= ifmsh->accepting_plinks ? 280bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; 2813f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch /* Mesh PS mode. See IEEE802.11-2012 8.4.2.100.8 */ 2823f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch *pos |= ifmsh->ps_peers_deep_sleep ? 283bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL : 0x00; 284dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona *pos++ |= ifmsh->adjusting_tbtt ? 285bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00; 286082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = 0x00; 287082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 288082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 289082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen} 290082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 291bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_meshid_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) 292082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen{ 293082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 294082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 *pos; 295082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 296082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (skb_tailroom(skb) < 2 + ifmsh->mesh_id_len) 297082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return -ENOMEM; 298082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 299082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen pos = skb_put(skb, 2 + ifmsh->mesh_id_len); 300082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = WLAN_EID_MESH_ID; 301082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen *pos++ = ifmsh->mesh_id_len; 302082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (ifmsh->mesh_id_len) 303082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen memcpy(pos, ifmsh->mesh_id, ifmsh->mesh_id_len); 304082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 305082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 306082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen} 307082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 308bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergstatic int mesh_add_awake_window_ie(struct ieee80211_sub_if_data *sdata, 309bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 3103f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch{ 3113f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3123f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch u8 *pos; 3133f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 3143f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch /* see IEEE802.11-2012 13.14.6 */ 3153f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch if (ifmsh->ps_peers_light_sleep == 0 && 3163f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch ifmsh->ps_peers_deep_sleep == 0 && 3173f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch ifmsh->nonpeer_pm == NL80211_MESH_POWER_ACTIVE) 3183f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch return 0; 3193f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 3203f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch if (skb_tailroom(skb) < 4) 3213f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch return -ENOMEM; 3223f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 3233f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch pos = skb_put(skb, 2 + 2); 3243f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch *pos++ = WLAN_EID_MESH_AWAKE_WINDOW; 3253f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch *pos++ = 2; 3263f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch put_unaligned_le16(ifmsh->mshcfg.dot11MeshAwakeWindowDuration, pos); 3273f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 3283f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch return 0; 3293f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch} 3303f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 331bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata, 332bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 333082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen{ 334082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 335082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 offset, len; 336082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen const u8 *data; 337082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 338082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (!ifmsh->ie || !ifmsh->ie_len) 339082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 340082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 341082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* fast-forward to vendor IEs */ 342082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0); 343082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 344082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (offset) { 345082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen len = ifmsh->ie_len - offset; 346082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen data = ifmsh->ie + offset; 347082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (skb_tailroom(skb) < len) 348082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return -ENOMEM; 349082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen memcpy(skb_put(skb, len), data, len); 350082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen } 351082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 352082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 353082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen} 354082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 355bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_rsn_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) 356082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen{ 357082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 358082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 len = 0; 359082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen const u8 *data; 360082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 361082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (!ifmsh->ie || !ifmsh->ie_len) 362082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 363082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 364082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen /* find RSN IE */ 365082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen data = ifmsh->ie; 366082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen while (data < ifmsh->ie + ifmsh->ie_len) { 367082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (*data == WLAN_EID_RSN) { 368082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen len = data[1] + 2; 369082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen break; 370082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen } 371082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen data++; 372082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen } 373082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 374082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (len) { 375082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (skb_tailroom(skb) < len) 376082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return -ENOMEM; 377082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen memcpy(skb_put(skb, len), data, len); 378082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen } 379082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 380082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 381082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen} 382082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 383bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergstatic int mesh_add_ds_params_ie(struct ieee80211_sub_if_data *sdata, 384bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 385082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen{ 38655de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 38755de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_channel *chan; 388082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen u8 *pos; 3892e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 390082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen if (skb_tailroom(skb) < 3) 391082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return -ENOMEM; 392082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen 39355de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_lock(); 39455de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 39555de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg if (WARN_ON(!chanctx_conf)) { 39655de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_unlock(); 39755de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg return -EINVAL; 39855de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg } 3994bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg chan = chanctx_conf->def.chan; 40055de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_unlock(); 40155de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg 402601513aa208f27ea87400a410d42c978421530ecEmanuel Taube pos = skb_put(skb, 2 + 1); 403601513aa208f27ea87400a410d42c978421530ecEmanuel Taube *pos++ = WLAN_EID_DS_PARAMS; 404601513aa208f27ea87400a410d42c978421530ecEmanuel Taube *pos++ = 1; 405601513aa208f27ea87400a410d42c978421530ecEmanuel Taube *pos++ = ieee80211_frequency_to_channel(chan->center_freq); 406be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo 407082ebb0c258d28af7452b19df9ef8b7553f37690Thomas Pedersen return 0; 4082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 4092e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 410bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata, 411bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 412176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen{ 413176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen struct ieee80211_local *local = sdata->local; 41455de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 415176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen struct ieee80211_supported_band *sband; 416176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen u8 *pos; 417176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 41855de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg sband = local->hw.wiphy->bands[band]; 419176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen if (!sband->ht_cap.ht_supported || 4204bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 421176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return 0; 422176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 423176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap)) 424176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return -ENOMEM; 425176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 426176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); 427ef96a84202ccfb48a4569256ffba45e32308f7eeBen Greear ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); 428176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 429176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return 0; 430176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen} 431176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 432bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata, 433bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct sk_buff *skb) 434176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen{ 435176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen struct ieee80211_local *local = sdata->local; 43655de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 43755de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_channel *channel; 438466f310d100ff54f346c1be481af9935c42467b3Johannes Berg enum nl80211_channel_type channel_type = 4394bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef); 44055de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_supported_band *sband; 44155de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg struct ieee80211_sta_ht_cap *ht_cap; 442176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen u8 *pos; 443176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 44455de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_lock(); 44555de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 44655de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg if (WARN_ON(!chanctx_conf)) { 44755de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_unlock(); 44855de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg return -EINVAL; 44955de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg } 4504bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg channel = chanctx_conf->def.chan; 45155de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg rcu_read_unlock(); 45255de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg 45355de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg sband = local->hw.wiphy->bands[channel->band]; 45455de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg ht_cap = &sband->ht_cap; 45555de908ab292c03f1eb280f51170ddb9c6b57e31Johannes Berg 456176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT) 457176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return 0; 458176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 459074d46d1d23f27488a3f314e29cae2453541f17dJohannes Berg if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_operation)) 460176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return -ENOMEM; 461176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 462074d46d1d23f27488a3f314e29cae2453541f17dJohannes Berg pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation)); 4634bf88530be971bf95a7830ca61b4120980bf4347Johannes Berg ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef, 464431e31542383b71bc5f2642572a1e6ef07f1bb87Ashok Nagarajan sdata->vif.bss_conf.ht_operation_mode); 465176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen 466176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen return 0; 467176f36086e8a00bdf701dc6e4c5a8784ef6529dfThomas Pedersen} 468bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 4692e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobostatic void ieee80211_mesh_path_timer(unsigned long data) 4702e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 4712e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct ieee80211_sub_if_data *sdata = 4722e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo (struct ieee80211_sub_if_data *) data; 4735bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 474690205f18fd069898c70d743f498ba42798e5c4eStanislaw Gruszka ieee80211_queue_work(&sdata->local->hw, &sdata->work); 4752e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 4762e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 477e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulostatic void ieee80211_mesh_path_root_timer(unsigned long data) 478e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo{ 479e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_sub_if_data *sdata = 480e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo (struct ieee80211_sub_if_data *) data; 481e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 482e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 483e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 484e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 485690205f18fd069898c70d743f498ba42798e5c4eStanislaw Gruszka ieee80211_queue_work(&sdata->local->hw, &sdata->work); 486e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo} 487e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 48863c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulovoid ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) 48963c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo{ 490dbb912cd4ce64e763c5610b49a85529d2634e9d8Chun-Yeow Yeoh if (ifmsh->mshcfg.dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT) 49163c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 49263c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo else { 49363c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 49463c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo /* stop running timer */ 49563c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo del_timer_sync(&ifmsh->mesh_path_root_timer); 49663c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo } 49763c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo} 49863c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo 499902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg/** 5003c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame 501bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg * @hdr: 802.11 frame header 5023c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @fc: frame control field 5033c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @meshda: destination address in the mesh 5043c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @meshsa: source address address in the mesh. Same as TA, as frame is 5053c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * locally originated. 5063c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * 5073c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * Return the length of the 802.11 (does not include a mesh control header) 5083c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona */ 50915ff63653e507ec928a4a4386405a82446e096b1Johannes Bergint ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, 51015ff63653e507ec928a4a4386405a82446e096b1Johannes Berg const u8 *meshda, const u8 *meshsa) 51115ff63653e507ec928a4a4386405a82446e096b1Johannes Berg{ 5123c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona if (is_multicast_ether_addr(meshda)) { 5133c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); 5143c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona /* DA TA SA */ 5153c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr1, meshda, ETH_ALEN); 5163c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr2, meshsa, ETH_ALEN); 5173c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr3, meshsa, ETH_ALEN); 5183c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona return 24; 5193c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } else { 5202154c81c32fa44364f83218a10d8dbec4e76d4f5Javier Cardona *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); 5213c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona /* RA TA DA SA */ 5223c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memset(hdr->addr1, 0, ETH_ALEN); /* RA is resolved later */ 5233c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr2, meshsa, ETH_ALEN); 5243c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr3, meshda, ETH_ALEN); 5253c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr4, meshsa, ETH_ALEN); 5263c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona return 30; 5273c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } 5283c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona} 5293c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona 5303c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona/** 531902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * ieee80211_new_mesh_header - create a new mesh header 532902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * @sdata: mesh interface to be used 533bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg * @meshhdr: uninitialized mesh header 53461ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * @addr4or5: 1st address in the ae header, which may correspond to address 4 53561ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * (if addr6 is NULL) or address 5 (if addr6 is present). It may 53661ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * be NULL. 53761ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * @addr6: 2nd address in the ae header, which corresponds to addr6 of the 53861ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * mesh frame 539902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * 540902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * Return the header length. 541902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg */ 542bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergint ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata, 543bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct ieee80211s_hdr *meshhdr, 544bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg const char *addr4or5, const char *addr6) 545902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg{ 546bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg if (WARN_ON(!addr4or5 && addr6)) 547bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return 0; 548bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 5490c3cee72a403e3b4992a5478c9c33d668c246c22Julia Lawall memset(meshhdr, 0, sizeof(*meshhdr)); 550bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 551472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; 552bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 553bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg /* FIXME: racy -- TX on multiple queues can be concurrent */ 554472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum); 555472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.mesh_seqnum++; 556bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 55761ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona if (addr4or5 && !addr6) { 5583c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona meshhdr->flags |= MESH_FLAGS_AE_A4; 55961ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); 560bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return 2 * ETH_ALEN; 56161ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona } else if (addr4or5 && addr6) { 5623c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona meshhdr->flags |= MESH_FLAGS_AE_A5_A6; 56361ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); 56461ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr2, addr6, ETH_ALEN); 565bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return 3 * ETH_ALEN; 5663c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } 567bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg 568bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg return ETH_ALEN; 569902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg} 570902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 571bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Bergstatic void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata) 572472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 573bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 574df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch u32 changed; 575472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 576472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); 577472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_path_expire(sdata); 578472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 579df32381896f5f0c78a371df2e49ab7c776b1a5baMarco Porsch changed = mesh_accept_plinks_update(sdata); 5802b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ieee80211_mbss_info_change_notify(sdata, changed); 581472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 582472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mod_timer(&ifmsh->housekeeping_timer, 583bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg round_jiffies(jiffies + 584bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg IEEE80211_MESH_HOUSEKEEPING_INTERVAL)); 585472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 586472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 587e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulostatic void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata) 588e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo{ 589e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 590a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh u32 interval; 591e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 592e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo mesh_path_tx_root_frame(sdata); 593a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh 594a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh if (ifmsh->mshcfg.dot11MeshHWMPRootMode == IEEE80211_PROACTIVE_RANN) 595a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval; 596a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh else 597a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh interval = ifmsh->mshcfg.dot11MeshHWMProotInterval; 598a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh 599e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo mod_timer(&ifmsh->mesh_path_root_timer, 600a69cc44fe9ebb806c5f3f8bd83fb4a50ca63647bChun-Yeow Yeoh round_jiffies(TU_TO_EXP_TIME(interval))); 601e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo} 602e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 6032b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenstatic int 6042b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) 6052b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen{ 6062b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct beacon_data *bcn; 6072b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen int head_len, tail_len; 6082b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct sk_buff *skb; 6092b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct ieee80211_mgmt *mgmt; 6102b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct ieee80211_chanctx_conf *chanctx_conf; 6112b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen enum ieee80211_band band; 6122b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen u8 *pos; 6132b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct ieee80211_sub_if_data *sdata; 6142b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen int hdr_len = offsetof(struct ieee80211_mgmt, u.beacon) + 6152b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen sizeof(mgmt->u.beacon); 6162b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6172b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen sdata = container_of(ifmsh, struct ieee80211_sub_if_data, u.mesh); 6182b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen rcu_read_lock(); 6192b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 6202b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen band = chanctx_conf->def.chan->band; 6212b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen rcu_read_unlock(); 6222b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6232b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen head_len = hdr_len + 6242b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + /* NULL SSID */ 6252b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + 8 + /* supported rates */ 6262b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + 3; /* DS params */ 6272b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen tail_len = 2 + (IEEE80211_MAX_SUPP_RATES - 8) + 6282b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + sizeof(struct ieee80211_ht_cap) + 6292b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + sizeof(struct ieee80211_ht_operation) + 6302b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + ifmsh->mesh_id_len + 6312b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + sizeof(struct ieee80211_meshconf_ie) + 6322b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 2 + sizeof(__le16) + /* awake window */ 6332b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ifmsh->ie_len; 6342b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6352b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn = kzalloc(sizeof(*bcn) + head_len + tail_len, GFP_KERNEL); 6362b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen /* need an skb for IE builders to operate on */ 6372b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen skb = dev_alloc_skb(max(head_len, tail_len)); 6382b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6392b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (!bcn || !skb) 6402b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen goto out_free; 6412b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6422b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen /* 6432b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen * pointers go into the block we allocated, 6442b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen * memory is | beacon_data | head | tail | 6452b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen */ 6462b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn->head = ((u8 *) bcn) + sizeof(*bcn); 6472b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6482b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen /* fill in the head */ 6492b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len); 6502b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen memset(mgmt, 0, hdr_len); 6512b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 6522b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen IEEE80211_STYPE_BEACON); 6532b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen eth_broadcast_addr(mgmt->da); 6542b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 6552b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 6562b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ieee80211_mps_set_frame_flags(sdata, NULL, (void *) mgmt); 6572b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mgmt->u.beacon.beacon_int = 6582b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen cpu_to_le16(sdata->vif.bss_conf.beacon_int); 6592b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mgmt->u.beacon.capab_info |= cpu_to_le16( 6602b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen sdata->u.mesh.security ? WLAN_CAPABILITY_PRIVACY : 0); 6612b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6622b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen pos = skb_put(skb, 2); 6632b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen *pos++ = WLAN_EID_SSID; 6642b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen *pos++ = 0x0; 6652b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6662b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (ieee80211_add_srates_ie(sdata, skb, true, band) || 667bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_ds_params_ie(sdata, skb)) 6682b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen goto out_free; 6692b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6702b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn->head_len = skb->len; 6712b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen memcpy(bcn->head, skb->data, bcn->head_len); 6722b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6732b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen /* now the tail */ 6742b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen skb_trim(skb, 0); 6752b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn->tail = bcn->head + bcn->head_len; 6762b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6772b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (ieee80211_add_ext_srates_ie(sdata, skb, true, band) || 678bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_rsn_ie(sdata, skb) || 679bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_ht_cap_ie(sdata, skb) || 680bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_ht_oper_ie(sdata, skb) || 681bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_meshid_ie(sdata, skb) || 682bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_meshconf_ie(sdata, skb) || 683bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_awake_window_ie(sdata, skb) || 684bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg mesh_add_vendor_ies(sdata, skb)) 6852b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen goto out_free; 6862b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6872b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn->tail_len = skb->len; 6882b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen memcpy(bcn->tail, skb->data, bcn->tail_len); 6892b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6902b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen dev_kfree_skb(skb); 6912b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen rcu_assign_pointer(ifmsh->beacon, bcn); 6922b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return 0; 6932b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenout_free: 6942b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen kfree(bcn); 6952b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen dev_kfree_skb(skb); 6962b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return -ENOMEM; 6972b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen} 6982b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 6992b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenstatic int 7002b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenieee80211_mesh_rebuild_beacon(struct ieee80211_if_mesh *ifmsh) 7012b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen{ 7022b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct beacon_data *old_bcn; 7032b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen int ret; 7042b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 7052b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mutex_lock(&ifmsh->mtx); 7062b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 7072b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen old_bcn = rcu_dereference_protected(ifmsh->beacon, 7082b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen lockdep_is_held(&ifmsh->mtx)); 7092b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ret = ieee80211_mesh_build_beacon(ifmsh); 7102b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (ret) 7112b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen /* just reuse old beacon */ 7122b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen goto out; 7132b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 7142b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (old_bcn) 7152b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen kfree_rcu(old_bcn, rcu_head); 7162b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenout: 7172b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mutex_unlock(&ifmsh->mtx); 7182b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return ret; 7192b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen} 7202b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 7212b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenvoid ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata, 7222b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen u32 changed) 7232b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen{ 7242b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (sdata->vif.bss_conf.enable_beacon && 7252b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen (changed & (BSS_CHANGED_BEACON | 7262b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen BSS_CHANGED_HT | 7272b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen BSS_CHANGED_BASIC_RATES | 7282b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen BSS_CHANGED_BEACON_INT))) 7292b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (ieee80211_mesh_rebuild_beacon(&sdata->u.mesh)) 7302b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return; 7312b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ieee80211_bss_info_change_notify(sdata, changed); 7322b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen} 7332b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 7342b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersenint ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) 735472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 736472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 737472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_local *local = sdata->local; 738f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh u32 changed = BSS_CHANGED_BEACON | 739f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh BSS_CHANGED_BEACON_ENABLED | 740f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh BSS_CHANGED_HT | 741f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh BSS_CHANGED_BASIC_RATES | 742f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh BSS_CHANGED_BEACON_INT; 743f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 744472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 74509b174702601079c3a04806754be30ffbd70db4dJohannes Berg local->fif_other_bss++; 74609b174702601079c3a04806754be30ffbd70db4dJohannes Berg /* mesh ifaces must set allmulti to forward mcast traffic */ 74709b174702601079c3a04806754be30ffbd70db4dJohannes Berg atomic_inc(&local->iff_allmultis); 74809b174702601079c3a04806754be30ffbd70db4dJohannes Berg ieee80211_configure_filter(local); 74909b174702601079c3a04806754be30ffbd70db4dJohannes Berg 750c7108a7111cd9e592d6ad498be37276dbea75d2bJavier Cardona ifmsh->mesh_cc_id = 0; /* Disabled */ 751c7108a7111cd9e592d6ad498be37276dbea75d2bJavier Cardona ifmsh->mesh_auth_id = 0; /* Disabled */ 752dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona /* register sync ops from extensible synchronization framework */ 753dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona ifmsh->sync_ops = ieee80211_mesh_sync_ops_get(ifmsh->mesh_sp_id); 754dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona ifmsh->adjusting_tbtt = false; 755dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona ifmsh->sync_offset_clockdrift_max = 0; 7566b9ac4425d6ec871faf54540e0f1c5ff420a8f29Rui Paulo set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); 75763c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo ieee80211_mesh_root_setup(ifmsh); 75864592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 75970c33eaae79e53f9e48324736c0cb85534d3f093Ashok Nagarajan sdata->vif.bss_conf.ht_operation_mode = 76070c33eaae79e53f9e48324736c0cb85534d3f093Ashok Nagarajan ifmsh->mshcfg.ht_opmode; 761d6a83228823fc0cc8d79d95c9f0bf568b7317862Johannes Berg sdata->vif.bss_conf.enable_beacon = true; 762d934f7d0d6a3f8aa3049ca0692948ec59d738928Ashok Nagarajan sdata->vif.bss_conf.basic_rates = 763f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh ieee80211_mandatory_rates(local, band); 764f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh 76539886b618aba3c39e650c191d601e26ec581ce0fThomas Pedersen changed |= ieee80211_mps_local_status_update(sdata); 7663f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 7672b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen if (ieee80211_mesh_build_beacon(ifmsh)) { 7682b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen ieee80211_stop_mesh(sdata); 7692b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return -ENOMEM; 7702b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen } 7712b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen 772f4eabc918c3b88763bc20dd9e2b248aa6c757005Chun-Yeow Yeoh ieee80211_bss_info_change_notify(sdata, changed); 773c405c6298eacd423098afacf6020ddbda1b0378bJohannes Berg 774c405c6298eacd423098afacf6020ddbda1b0378bJohannes Berg netif_carrier_on(sdata->dev); 7752b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen return 0; 776472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 777472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 778472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergvoid ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) 779472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 78009b174702601079c3a04806754be30ffbd70db4dJohannes Berg struct ieee80211_local *local = sdata->local; 78129cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 7822b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen struct beacon_data *bcn; 78329cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg 784c405c6298eacd423098afacf6020ddbda1b0378bJohannes Berg netif_carrier_off(sdata->dev); 785c405c6298eacd423098afacf6020ddbda1b0378bJohannes Berg 7860d466b9c6798d431141ab15ae6d5ea413b4d09b2Thomas Pedersen /* stop the beacon */ 78729cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg ifmsh->mesh_id_len = 0; 788d6a83228823fc0cc8d79d95c9f0bf568b7317862Johannes Berg sdata->vif.bss_conf.enable_beacon = false; 789d6a83228823fc0cc8d79d95c9f0bf568b7317862Johannes Berg clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 79029cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 7912b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mutex_lock(&ifmsh->mtx); 7922b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen bcn = rcu_dereference_protected(ifmsh->beacon, 7932b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen lockdep_is_held(&ifmsh->mtx)); 7942b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen rcu_assign_pointer(ifmsh->beacon, NULL); 7952b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen kfree_rcu(bcn, rcu_head); 7962b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mutex_unlock(&ifmsh->mtx); 7970d466b9c6798d431141ab15ae6d5ea413b4d09b2Thomas Pedersen 7980d466b9c6798d431141ab15ae6d5ea413b4d09b2Thomas Pedersen /* flush STAs and mpaths on this iface */ 799b998e8bb3e1c6eeae5eab9d6a434563270286c3bJohannes Berg sta_info_flush(sdata); 8000d466b9c6798d431141ab15ae6d5ea413b4d09b2Thomas Pedersen mesh_path_flush_by_iface(sdata); 80109b174702601079c3a04806754be30ffbd70db4dJohannes Berg 8023f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch /* free all potentially still buffered group-addressed frames */ 8033f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch local->total_ps_buffered -= skb_queue_len(&ifmsh->ps.bc_buf); 8043f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch skb_queue_purge(&ifmsh->ps.bc_buf); 8053f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch 806472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg del_timer_sync(&sdata->u.mesh.housekeeping_timer); 807e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo del_timer_sync(&sdata->u.mesh.mesh_path_root_timer); 808dd4c9260e7f23f2e951cbfb2726e468c6d30306cJohannes Berg del_timer_sync(&sdata->u.mesh.mesh_path_timer); 809472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg /* 810b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * If the timer fired while we waited for it, it will have 811b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * requeued the work. Now the work will be running again 812b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * but will not rearm the timer again because it checks 813b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * whether the interface is running, which, at this point, 814b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * it no longer is. 815b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg */ 81664592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg cancel_work_sync(&sdata->work); 81709b174702601079c3a04806754be30ffbd70db4dJohannes Berg 81809b174702601079c3a04806754be30ffbd70db4dJohannes Berg local->fif_other_bss--; 81909b174702601079c3a04806754be30ffbd70db4dJohannes Berg atomic_dec(&local->iff_allmultis); 82009b174702601079c3a04806754be30ffbd70db4dJohannes Berg ieee80211_configure_filter(local); 821472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 822472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 8239fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersenstatic void 8249fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersenieee80211_mesh_rx_probe_req(struct ieee80211_sub_if_data *sdata, 8259fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct ieee80211_mgmt *mgmt, size_t len) 8269fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen{ 8279fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct ieee80211_local *local = sdata->local; 8289fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 8299fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct sk_buff *presp; 8309fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct beacon_data *bcn; 8319fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct ieee80211_mgmt *hdr; 8329fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen struct ieee802_11_elems elems; 8339fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen size_t baselen; 834511044ea0bfc06614d903263ad094d1071fa172fJohannes Berg u8 *pos; 8359fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8369fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen pos = mgmt->u.probe_req.variable; 8379fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen baselen = (u8 *) pos - (u8 *) mgmt; 8389fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen if (baselen > len) 8399fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen return; 8409fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 841b2e506bfc4d752b68a0ccaae1e977898263eba4cJohannes Berg ieee802_11_parse_elems(pos, len - baselen, false, &elems); 8429fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8439fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen /* 802.11-2012 10.1.4.3.2 */ 8449fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen if ((!ether_addr_equal(mgmt->da, sdata->vif.addr) && 8459fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen !is_broadcast_ether_addr(mgmt->da)) || 8469fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen elems.ssid_len != 0) 8479fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen return; 8489fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8499fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen if (elems.mesh_id_len != 0 && 8509fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen (elems.mesh_id_len != ifmsh->mesh_id_len || 8519fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen memcmp(elems.mesh_id, ifmsh->mesh_id, ifmsh->mesh_id_len))) 8529fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen return; 8539fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8549fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen rcu_read_lock(); 8559fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen bcn = rcu_dereference(ifmsh->beacon); 8569fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8579fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen if (!bcn) 8589fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen goto out; 8599fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8609fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen presp = dev_alloc_skb(local->tx_headroom + 8619fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen bcn->head_len + bcn->tail_len); 8629fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen if (!presp) 8639fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen goto out; 8649fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 8659fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen skb_reserve(presp, local->tx_headroom); 8669fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen memcpy(skb_put(presp, bcn->head_len), bcn->head, bcn->head_len); 8679fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen memcpy(skb_put(presp, bcn->tail_len), bcn->tail, bcn->tail_len); 8689fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen hdr = (struct ieee80211_mgmt *) presp->data; 8699fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 8709fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen IEEE80211_STYPE_PROBE_RESP); 8719fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen memcpy(hdr->da, mgmt->sa, ETH_ALEN); 8729fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen IEEE80211_SKB_CB(presp)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 8739fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen ieee80211_tx_skb(sdata, presp); 8749fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersenout: 8759fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen rcu_read_unlock(); 8769fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen} 8779fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen 878472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, 879472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg u16 stype, 880472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt, 881472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t len, 882472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status) 883472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 884c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg struct ieee80211_local *local = sdata->local; 885dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 886472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee802_11_elems elems; 887472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_channel *channel; 888472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t baselen; 889472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg int freq; 890472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg enum ieee80211_band band = rx_status->band; 891472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 892472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg /* ignore ProbeResp to foreign address */ 893472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (stype == IEEE80211_STYPE_PROBE_RESP && 894b203ca39126bad99583c908be587df067820a1eaJoe Perches !ether_addr_equal(mgmt->da, sdata->vif.addr)) 895472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 896472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 897472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; 898472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (baselen > len) 899472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 900472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 901472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, 902b2e506bfc4d752b68a0ccaae1e977898263eba4cJohannes Berg false, &elems); 903472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 9049a90bc81914ee77edcd6eb7e881639b7f7bf1667Thomas Pedersen /* ignore non-mesh or secure / unsecure mismatch */ 9059a90bc81914ee77edcd6eb7e881639b7f7bf1667Thomas Pedersen if ((!elems.mesh_id || !elems.mesh_config) || 9069a90bc81914ee77edcd6eb7e881639b7f7bf1667Thomas Pedersen (elems.rsn && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) || 9079a90bc81914ee77edcd6eb7e881639b7f7bf1667Thomas Pedersen (!elems.rsn && sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)) 9085cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona return; 9095cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona 9101cd8e88e17729f57a9c7f751103e522596bb5de2Johannes Berg if (elems.ds_params) 91159eb21a6504731fc16db4cf9463065dd61093e08Bruno Randolf freq = ieee80211_channel_to_frequency(elems.ds_params[0], band); 912472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg else 913472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg freq = rx_status->freq; 914472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 915472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg channel = ieee80211_get_channel(local->hw.wiphy, freq); 916472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 917472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) 918472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 919472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 9209a90bc81914ee77edcd6eb7e881639b7f7bf1667Thomas Pedersen if (mesh_matches_local(sdata, &elems)) 921f743ff4907fa5bc2b460f48ace831a560806a9fbThomas Pedersen mesh_neighbour_update(sdata, mgmt->sa, &elems); 922dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona 923dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona if (ifmsh->sync_ops) 924dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona ifmsh->sync_ops->rx_bcn_presp(sdata, 925dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona stype, mgmt, &elems, rx_status); 926472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 927472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 928472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, 929472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt, 930472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t len, 931472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status) 932472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 933472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg switch (mgmt->u.action.category) { 9348db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen case WLAN_CATEGORY_SELF_PROTECTED: 9358db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen switch (mgmt->u.action.u.self_prot.action_code) { 9368db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen case WLAN_SP_MESH_PEERING_OPEN: 9378db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen case WLAN_SP_MESH_PEERING_CLOSE: 9388db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen case WLAN_SP_MESH_PEERING_CONFIRM: 9398db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen mesh_rx_plink_frame(sdata, mgmt, len, rx_status); 9408db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen break; 9418db098507c5cbe499061d0f6aea426a36e7c72d7Thomas Pedersen } 942472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 94325d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen case WLAN_CATEGORY_MESH_ACTION: 94425d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen if (mesh_action_is_path_sel(mgmt)) 94525d49e4d63564c7004a4d6735d1d8c3cc41a7394Thomas Pedersen mesh_rx_path_sel_frame(sdata, mgmt, len); 946472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 947472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg } 948472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 949472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 9501fa57d017366fb26b58af110a38b36a4f0214a62Johannes Bergvoid ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 9511fa57d017366fb26b58af110a38b36a4f0214a62Johannes Berg struct sk_buff *skb) 952472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 953472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status; 954472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt; 955472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg u16 stype; 956472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 957f1d58c2521eb160178b2151d6326d8dc5d7c8560Johannes Berg rx_status = IEEE80211_SKB_RXCB(skb); 958472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mgmt = (struct ieee80211_mgmt *) skb->data; 959472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; 960472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 961472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg switch (stype) { 962472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_PROBE_RESP: 963472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_BEACON: 964472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len, 965472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rx_status); 966472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 9679fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen case IEEE80211_STYPE_PROBE_REQ: 9689fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen ieee80211_mesh_rx_probe_req(sdata, mgmt, skb->len); 9699fb04b501a57ad29fa989ab3cd2123482e7eac5fThomas Pedersen break; 970472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_ACTION: 971472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status); 972472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 973472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg } 974472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 975472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 9761fa57d017366fb26b58af110a38b36a4f0214a62Johannes Bergvoid ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata) 977472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 978472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 979472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 980472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (ifmsh->preq_queue_len && 981472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg time_after(jiffies, 982472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval))) 983472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_path_start_discovery(sdata); 984472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 98518889231e4527dfe23145efe318e74744794a95dJavier Cardona if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags)) 98618889231e4527dfe23145efe318e74744794a95dJavier Cardona mesh_mpath_table_grow(); 98718889231e4527dfe23145efe318e74744794a95dJavier Cardona 988dcac908babcd8ce21057e476c8df609b28ad2cd8Nick Ledovskikh if (test_and_clear_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags)) 98918889231e4527dfe23145efe318e74744794a95dJavier Cardona mesh_mpp_table_grow(); 99018889231e4527dfe23145efe318e74744794a95dJavier Cardona 99118889231e4527dfe23145efe318e74744794a95dJavier Cardona if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags)) 992bf7cd94dcc71682cd6af4a9028f95307b7db41c5Johannes Berg ieee80211_mesh_housekeeping(sdata); 993e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 994e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo if (test_and_clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags)) 995e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo ieee80211_mesh_rootpath(sdata); 996dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona 997dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona if (test_and_clear_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags)) 998dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona mesh_sync_adjust_tbtt(sdata); 999472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 1000472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 1001472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergvoid ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) 1002472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 1003472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_sub_if_data *sdata; 1004472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 1005472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rcu_read_lock(); 1006472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) 1007472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (ieee80211_vif_is_mesh(&sdata->vif)) 100864592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 1009472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rcu_read_unlock(); 1010472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 1011472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 1012902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Bergvoid ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) 1013902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg{ 1014472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1015ad2d223aa900179031feb40273881e212941573dJohannes Berg static u8 zero_addr[ETH_ALEN] = {}; 1016472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 1017472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg setup_timer(&ifmsh->housekeeping_timer, 1018472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_housekeeping_timer, 1019472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg (unsigned long) sdata); 1020472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 1021472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->accepting_plinks = true; 1022472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->preq_id = 0; 1023d19b3bf6384e66ac6e11a61ee31ed2cfe149f4d8Rui Paulo ifmsh->sn = 0; 10245ee68e5b39de5cefecf147c58711f8ab01c21231Javier Cardona ifmsh->num_gates = 0; 1025472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg atomic_set(&ifmsh->mpaths, 0); 1026f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene mesh_rmc_init(sdata); 1027472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->last_preq = jiffies; 1028dca7e9430cb3e492437a5ce891b8b3e315c147caThomas Pedersen ifmsh->next_perr = jiffies; 1029902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg /* Allocate all mesh structures when creating the first mesh interface. */ 1030902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg if (!mesh_allocated) 1031902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg ieee80211s_init(); 1032472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg setup_timer(&ifmsh->mesh_path_timer, 1033902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg ieee80211_mesh_path_timer, 1034902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg (unsigned long) sdata); 1035e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo setup_timer(&ifmsh->mesh_path_root_timer, 1036e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo ieee80211_mesh_path_root_timer, 1037e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo (unsigned long) sdata); 1038472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg INIT_LIST_HEAD(&ifmsh->preq_queue.list); 10393f52b7e328c526fa7a592af9bf5772c591ed38a4Marco Porsch skb_queue_head_init(&ifmsh->ps.bc_buf); 1040472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg spin_lock_init(&ifmsh->mesh_preq_queue_lock); 1041dbf498fbafa2c23139d5a990e94ed78bafbbea19Javier Cardona spin_lock_init(&ifmsh->sync_offset_lock); 10422b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen RCU_INIT_POINTER(ifmsh->beacon, NULL); 10432b5e19677592c167d012c2d129407f39d2bdeb8dThomas Pedersen mutex_init(&ifmsh->mtx); 1044ad2d223aa900179031feb40273881e212941573dJohannes Berg 1045ad2d223aa900179031feb40273881e212941573dJohannes Berg sdata->vif.bss_conf.bssid = zero_addr; 1046472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 1047