mesh.c revision 5cff5e01e818029a5d2c3c31b7ae5e5e7ee70452
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 16472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ) 17472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ) 18e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo#define IEEE80211_MESH_RANN_INTERVAL (1 * HZ) 19472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 203491707a070c1183c709516b2f876f798c7a9a84Rui Paulo#define MESHCONF_CAPAB_ACCEPT_PLINKS 0x01 213491707a070c1183c709516b2f876f798c7a9a84Rui Paulo#define MESHCONF_CAPAB_FORWARDING 0x08 222e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 235bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg#define TMR_RUNNING_HK 0 245bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg#define TMR_RUNNING_MP 1 25e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo#define TMR_RUNNING_MPR 2 265bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Coboint mesh_allocated; 282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobostatic struct kmem_cache *rm_cache; 292e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobovoid ieee80211s_init(void) 312e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_pathtbl_init(); 332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_allocated = 1; 342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry), 352e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 0, 0, NULL); 362e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 372e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 382e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobovoid ieee80211s_stop(void) 392e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 402e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo mesh_pathtbl_unregister(); 412e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_destroy(rm_cache); 422e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 432e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 44472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_housekeeping_timer(unsigned long data) 45472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 46472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_sub_if_data *sdata = (void *) data; 47472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_local *local = sdata->local; 48472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 49472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 506b9ac4425d6ec871faf54540e0f1c5ff420a8f29Rui Paulo set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); 515bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 525bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (local->quiescing) { 535bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg set_bit(TMR_RUNNING_HK, &ifmsh->timers_running); 545bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg return; 555bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg } 565bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 5764592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 58472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 59472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 602e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 612e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_matches_local - check if the config of a mesh point matches ours 622e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 632e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @ie: information elements of a management frame from the mesh peer 64f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene * @sdata: local mesh subif 652e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 662e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * This function checks if the mesh configuration of a mesh point matches the 672e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * local mesh configuration, i.e. if both nodes belong to the same mesh network. 682e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 69f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenebool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata) 702e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 71472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 722e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 732e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* 742e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * As support for each feature is added, check for matching 752e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - On mesh config capabilities 762e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Power Save Support En 772e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support enabled 782e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support active 792e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Sync support required from peer 802e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - MDA enabled 812e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * - Power management control on fc 822e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 83472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (ifmsh->mesh_id_len == ie->mesh_id_len && 84472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && 85136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && 86136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && 87136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && 88136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && 89136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)) 902e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return true; 912e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 922e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return false; 932e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 942e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 952e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 962e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links 972e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 982e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @ie: information elements of a management frame from the mesh peer 992e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 100f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenebool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) 1012e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 102136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo return (ie->mesh_config->meshconf_cap & 1033491707a070c1183c709516b2f876f798c7a9a84Rui Paulo MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; 1042e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1052e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1062e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 1072e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_accept_plinks_update: update accepting_plink in local mesh beacons 1082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 109d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg * @sdata: mesh interface in which mesh beacons are going to be updated 1102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 111d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Bergvoid mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) 1122e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 1132e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo bool free_plinks; 1142e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1152e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0, 1162e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * the mesh interface might be able to establish plinks with peers that 117b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * are already on the table but are not on PLINK_ESTAB state. However, 118b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * in general the mesh interface is not accepting peer link requests 119b4e08ea141e6d663dec31b31d6289baeaaa2a3a2Luis Carlos Cobo * from new peers, and that must be reflected in the beacon 1202e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 1212e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo free_plinks = mesh_plink_availables(sdata); 1222e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 123472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (free_plinks != sdata->u.mesh.accepting_plinks) 124472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_housekeeping_timer((unsigned long) sdata); 1252e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1262e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 127f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneint mesh_rmc_init(struct ieee80211_sub_if_data *sdata) 1282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 1292e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int i; 1302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 131472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL); 132472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!sdata->u.mesh.rmc) 1332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return -ENOMEM; 134472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; 1352e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = 0; i < RMC_BUCKETS; i++) 136472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list); 1372e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 1382e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1392e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 140f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenevoid mesh_rmc_free(struct ieee80211_sub_if_data *sdata) 1412e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 142472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct mesh_rmc *rmc = sdata->u.mesh.rmc; 1432e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct rmc_entry *p, *n; 1442e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int i; 1452e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 146472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!sdata->u.mesh.rmc) 1472e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return; 1482e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1492e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = 0; i < RMC_BUCKETS; i++) 1502e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) { 1512e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_del(&p->list); 1522e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_free(rm_cache, p); 1532e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 1542e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1552e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kfree(rmc); 156472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.rmc = NULL; 1572e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 1582e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1592e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo/** 1602e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * mesh_rmc_check - Check frame in recent multicast cache and add if absent. 1612e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 1622e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @sa: source address 1632e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * @mesh_hdr: mesh_header 1642e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 1652e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Returns: 0 if the frame is not in the cache, nonzero otherwise. 1662e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * 1672e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * Checks using the source address and the mesh sequence number if we have 1682e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * received this frame lately. If the frame is not in the cache, it is added to 1692e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo * it. 1702e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo */ 1712e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Coboint mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr, 172f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene struct ieee80211_sub_if_data *sdata) 1732e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 174472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct mesh_rmc *rmc = sdata->u.mesh.rmc; 1752e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo u32 seqnum = 0; 1762e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int entries = 0; 1772e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo u8 idx; 1782e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct rmc_entry *p, *n; 1792e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1802e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Don't care about endianness since only match matters */ 18151ceddade0fb1e15f080b2555f3b3e1d68c6707eLuis Carlos Cobo memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); 18251ceddade0fb1e15f080b2555f3b3e1d68c6707eLuis Carlos Cobo idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; 1832e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) { 1842e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo ++entries; 1852e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (time_after(jiffies, p->exp_time) || 1862e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo (entries == RMC_QUEUE_MAX_LEN)) { 1872e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_del(&p->list); 1882e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kmem_cache_free(rm_cache, p); 1892e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo --entries; 190f64f9e719261a87818dd192a3a2352e5b20fbd0fJoe Perches } else if ((seqnum == p->seqnum) && 191f64f9e719261a87818dd192a3a2352e5b20fbd0fJoe Perches (memcmp(sa, p->sa, ETH_ALEN) == 0)) 1922e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return -1; 1932e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 1942e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 1952e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p = kmem_cache_alloc(rm_cache, GFP_ATOMIC); 1962e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (!p) { 1972e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo printk(KERN_DEBUG "o11s: could not allocate RMC entry\n"); 1982e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 1992e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 2002e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p->seqnum = seqnum; 2012e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo p->exp_time = jiffies + RMC_TIMEOUT; 2022e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo memcpy(p->sa, sa, ETH_ALEN); 2032e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo list_add(&p->list, &rmc->bucket[idx].list); 2042e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return 0; 2052e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 2062e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 207f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greenevoid mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) 2082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 209f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene struct ieee80211_local *local = sdata->local; 2102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct ieee80211_supported_band *sband; 2112e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo u8 *pos; 2122e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int len, i, rate; 2138f2fda9594f083981ad54c1994863875fe680925Rui Paulo u8 neighbors; 2142e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2152e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; 2162e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo len = sband->n_bitrates; 2172e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (len > 8) 2182e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo len = 8; 2192e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo pos = skb_put(skb, len + 2); 2202e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = WLAN_EID_SUPP_RATES; 2212e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = len; 2222e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = 0; i < len; i++) { 2232e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo rate = sband->bitrates[i].bitrate; 2242e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = (u8) (rate / 5); 2252e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 2262e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (sband->n_bitrates > len) { 2282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo pos = skb_put(skb, sband->n_bitrates - len + 2); 2292e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = WLAN_EID_EXT_SUPP_RATES; 2302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = sband->n_bitrates - len; 2312e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = len; i < sband->n_bitrates; i++) { 2322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo rate = sband->bitrates[i].bitrate; 2332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = (u8) (rate / 5); 2342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 2352e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 2362e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 237be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo if (sband->band == IEEE80211_BAND_2GHZ) { 238be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo pos = skb_put(skb, 2 + 1); 239be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo *pos++ = WLAN_EID_DS_PARAMS; 240be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo *pos++ = 1; 241be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo *pos++ = ieee80211_frequency_to_channel(local->hw.conf.channel->center_freq); 242be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo } 243be125c60e46e165fbfe33db36a4a9d943d560a5bRui Paulo 244472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg pos = skb_put(skb, 2 + sdata->u.mesh.mesh_id_len); 2452e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = WLAN_EID_MESH_ID; 246472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg *pos++ = sdata->u.mesh.mesh_id_len; 247472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (sdata->u.mesh.mesh_id_len) 248472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg memcpy(pos, sdata->u.mesh.mesh_id, sdata->u.mesh.mesh_id_len); 2492e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 250136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo pos = skb_put(skb, 2 + sizeof(struct ieee80211_meshconf_ie)); 2512e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = WLAN_EID_MESH_CONFIG; 252136cfa28615ccce0f9374811480e0b81c4191ea5Rui Paulo *pos++ = sizeof(struct ieee80211_meshconf_ie); 2532e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2542e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Active path selection protocol ID */ 2553491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ = sdata->u.mesh.mesh_pp_id; 2562e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2572e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Active path selection metric ID */ 2583491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ = sdata->u.mesh.mesh_pm_id; 2592e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2602e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Congestion control mode identifier */ 2613491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ = sdata->u.mesh.mesh_cc_id; 2622e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2639e03fdfd05e733e1136d431973625b174029c5e6Javier Cardona /* Synchronization protocol identifier */ 2643491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ = sdata->u.mesh.mesh_sp_id; 2652e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2669e03fdfd05e733e1136d431973625b174029c5e6Javier Cardona /* Authentication Protocol identifier */ 2673491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ = sdata->u.mesh.mesh_auth_id; 2689e03fdfd05e733e1136d431973625b174029c5e6Javier Cardona 2698f2fda9594f083981ad54c1994863875fe680925Rui Paulo /* Mesh Formation Info - number of neighbors */ 2708f2fda9594f083981ad54c1994863875fe680925Rui Paulo neighbors = atomic_read(&sdata->u.mesh.mshstats.estab_plinks); 2718f2fda9594f083981ad54c1994863875fe680925Rui Paulo /* Number of neighbor mesh STAs or 15 whichever is smaller */ 2728f2fda9594f083981ad54c1994863875fe680925Rui Paulo neighbors = (neighbors > 15) ? 15 : neighbors; 2738f2fda9594f083981ad54c1994863875fe680925Rui Paulo *pos++ = neighbors << 1; 2749e03fdfd05e733e1136d431973625b174029c5e6Javier Cardona 2752e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Mesh capability */ 276472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata); 2773491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos = MESHCONF_CAPAB_FORWARDING; 2783491707a070c1183c709516b2f876f798c7a9a84Rui Paulo *pos++ |= sdata->u.mesh.accepting_plinks ? 2793491707a070c1183c709516b2f876f798c7a9a84Rui Paulo MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; 2802e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo *pos++ = 0x00; 281c80d545da3f7c0e534ccd4a780f322f80a92cff1Javier Cardona 282581a8b0feeed8877aab3a8ca4c972419790cd07fJavier Cardona if (sdata->u.mesh.ie) { 283581a8b0feeed8877aab3a8ca4c972419790cd07fJavier Cardona int len = sdata->u.mesh.ie_len; 284581a8b0feeed8877aab3a8ca4c972419790cd07fJavier Cardona const u8 *data = sdata->u.mesh.ie; 285c80d545da3f7c0e534ccd4a780f322f80a92cff1Javier Cardona if (skb_tailroom(skb) > len) 286c80d545da3f7c0e534ccd4a780f322f80a92cff1Javier Cardona memcpy(skb_put(skb, len), data, len); 287c80d545da3f7c0e534ccd4a780f322f80a92cff1Javier Cardona } 2882e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 2892e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 290f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneu32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, struct mesh_table *tbl) 2912e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 2922e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo /* Use last four bytes of hw addr and interface index as hash index */ 293f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd) 2942e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo & tbl->hash_mask; 2952e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 2962e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 2972e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobostruct mesh_table *mesh_table_alloc(int size_order) 2982e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 2992e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo int i; 3002e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct mesh_table *newtbl; 3012e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3022e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL); 3032e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (!newtbl) 3042e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return NULL; 3052e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3062e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) * 3072e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo (1 << size_order), GFP_KERNEL); 3082e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3092e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (!newtbl->hash_buckets) { 3102e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kfree(newtbl); 3112e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return NULL; 3122e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 3132e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3142e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo newtbl->hashwlock = kmalloc(sizeof(spinlock_t) * 3152e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo (1 << size_order), GFP_KERNEL); 3162e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo if (!newtbl->hashwlock) { 3172e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kfree(newtbl->hash_buckets); 3182e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo kfree(newtbl); 3192e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return NULL; 3202e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo } 3212e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3222e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo newtbl->size_order = size_order; 3232e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo newtbl->hash_mask = (1 << size_order) - 1; 3242e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo atomic_set(&newtbl->entries, 0); 3252e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo get_random_bytes(&newtbl->hash_rnd, 3262e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo sizeof(newtbl->hash_rnd)); 3272e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo for (i = 0; i <= newtbl->hash_mask; i++) 3282e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo spin_lock_init(&newtbl->hashwlock[i]); 3292e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3302e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo return newtbl; 3312e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 3322e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3332e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3342e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobostatic void ieee80211_mesh_path_timer(unsigned long data) 3352e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo{ 3362e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo struct ieee80211_sub_if_data *sdata = 3372e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo (struct ieee80211_sub_if_data *) data; 338472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 339133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = sdata->local; 3402e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 3415bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (local->quiescing) { 3425bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg set_bit(TMR_RUNNING_MP, &ifmsh->timers_running); 3435bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg return; 3445bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg } 3455bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 34664592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 3472e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo} 3482e3c8736820bf72a8ad10721c7e31d36d4fa7790Luis Carlos Cobo 349e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulostatic void ieee80211_mesh_path_root_timer(unsigned long data) 350e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo{ 351e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_sub_if_data *sdata = 352e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo (struct ieee80211_sub_if_data *) data; 353e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 354e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_local *local = sdata->local; 355e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 356e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 357e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 358e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo if (local->quiescing) { 359e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running); 360e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo return; 361e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo } 362e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 36364592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 364e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo} 365e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 36663c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulovoid ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) 36763c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo{ 36863c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo if (ifmsh->mshcfg.dot11MeshHWMPRootMode) 36963c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 37063c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo else { 37163c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); 37263c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo /* stop running timer */ 37363c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo del_timer_sync(&ifmsh->mesh_path_root_timer); 37463c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo } 37563c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo} 37663c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo 377902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg/** 3783c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame 3793c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @hdr: 802.11 frame header 3803c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @fc: frame control field 3813c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @meshda: destination address in the mesh 3823c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * @meshsa: source address address in the mesh. Same as TA, as frame is 3833c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * locally originated. 3843c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * 3853c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona * Return the length of the 802.11 (does not include a mesh control header) 3863c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona */ 38715ff63653e507ec928a4a4386405a82446e096b1Johannes Bergint ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, 38815ff63653e507ec928a4a4386405a82446e096b1Johannes Berg const u8 *meshda, const u8 *meshsa) 38915ff63653e507ec928a4a4386405a82446e096b1Johannes Berg{ 3903c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona if (is_multicast_ether_addr(meshda)) { 3913c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); 3923c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona /* DA TA SA */ 3933c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr1, meshda, ETH_ALEN); 3943c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr2, meshsa, ETH_ALEN); 3953c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr3, meshsa, ETH_ALEN); 3963c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona return 24; 3973c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } else { 3983c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | 3993c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona IEEE80211_FCTL_TODS); 4003c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona /* RA TA DA SA */ 4013c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memset(hdr->addr1, 0, ETH_ALEN); /* RA is resolved later */ 4023c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr2, meshsa, ETH_ALEN); 4033c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr3, meshda, ETH_ALEN); 4043c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona memcpy(hdr->addr4, meshsa, ETH_ALEN); 4053c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona return 30; 4063c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } 4073c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona} 4083c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona 4093c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona/** 410902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * ieee80211_new_mesh_header - create a new mesh header 411902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * @meshhdr: uninitialized mesh header 412902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * @sdata: mesh interface to be used 41361ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * @addr4or5: 1st address in the ae header, which may correspond to address 4 41461ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * (if addr6 is NULL) or address 5 (if addr6 is present). It may 41561ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * be NULL. 41661ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * @addr6: 2nd address in the ae header, which corresponds to addr6 of the 41761ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona * mesh frame 418902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * 419902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg * Return the header length. 420902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg */ 421902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Bergint ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr, 42261ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona struct ieee80211_sub_if_data *sdata, char *addr4or5, 42361ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona char *addr6) 424902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg{ 4253c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona int aelen = 0; 42661ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona BUG_ON(!addr4or5 && addr6); 4270c3cee72a403e3b4992a5478c9c33d668c246c22Julia Lawall memset(meshhdr, 0, sizeof(*meshhdr)); 428472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; 429472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum); 430472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg sdata->u.mesh.mesh_seqnum++; 43161ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona if (addr4or5 && !addr6) { 4323c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona meshhdr->flags |= MESH_FLAGS_AE_A4; 4333c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona aelen += ETH_ALEN; 43461ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); 43561ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona } else if (addr4or5 && addr6) { 4363c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona meshhdr->flags |= MESH_FLAGS_AE_A5_A6; 4373c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona aelen += 2 * ETH_ALEN; 43861ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); 43961ad5394590c5c5338ab4ec50553d809a9996d50Javier Cardona memcpy(meshhdr->eaddr2, addr6, ETH_ALEN); 4403c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona } 4413c5772a5279de9eadfff7adb5ddea08106495fffJavier Cardona return 6 + aelen; 442902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg} 443902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 444472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata, 445472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh) 446472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 447472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg bool free_plinks; 448472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 449472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg#ifdef CONFIG_MAC80211_VERBOSE_DEBUG 450472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg printk(KERN_DEBUG "%s: running mesh housekeeping\n", 45147846c9b0c10808d9337d2e7d09361f3e0a0a71aJohannes Berg sdata->name); 452472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg#endif 453472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 454472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); 455472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_path_expire(sdata); 456472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 457472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg free_plinks = mesh_plink_availables(sdata); 458472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (free_plinks != sdata->u.mesh.accepting_plinks) 4592d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON); 460472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 461472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mod_timer(&ifmsh->housekeeping_timer, 462472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL)); 463472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 464472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 465e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulostatic void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata) 466e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo{ 467e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 468e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 469e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo mesh_path_tx_root_frame(sdata); 470e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo mod_timer(&ifmsh->mesh_path_root_timer, 471e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo round_jiffies(jiffies + IEEE80211_MESH_RANN_INTERVAL)); 472e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo} 473e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 4745bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg#ifdef CONFIG_PM 4755bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Bergvoid ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata) 4765bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg{ 4775bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4785bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 4795bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg /* use atomic bitops in case both timers fire at the same time */ 4805bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 4815bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (del_timer_sync(&ifmsh->housekeeping_timer)) 4825bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg set_bit(TMR_RUNNING_HK, &ifmsh->timers_running); 4835bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (del_timer_sync(&ifmsh->mesh_path_timer)) 4845bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg set_bit(TMR_RUNNING_MP, &ifmsh->timers_running); 485e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo if (del_timer_sync(&ifmsh->mesh_path_root_timer)) 486e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running); 4875bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg} 4885bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 4895bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Bergvoid ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata) 4905bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg{ 4915bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4925bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg 4935bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running)) 4945bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg add_timer(&ifmsh->housekeeping_timer); 4955bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running)) 4965bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg add_timer(&ifmsh->mesh_path_timer); 497e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo if (test_and_clear_bit(TMR_RUNNING_MPR, &ifmsh->timers_running)) 498e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo add_timer(&ifmsh->mesh_path_root_timer); 49963c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo ieee80211_mesh_root_setup(ifmsh); 5005bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg} 5015bb644a0fd25a5e083ecbfaa92a211db99aa6ef7Johannes Berg#endif 502472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 503472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergvoid ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) 504472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 505472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 506472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_local *local = sdata->local; 507472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 50809b174702601079c3a04806754be30ffbd70db4dJohannes Berg local->fif_other_bss++; 50909b174702601079c3a04806754be30ffbd70db4dJohannes Berg /* mesh ifaces must set allmulti to forward mcast traffic */ 51009b174702601079c3a04806754be30ffbd70db4dJohannes Berg atomic_inc(&local->iff_allmultis); 51109b174702601079c3a04806754be30ffbd70db4dJohannes Berg ieee80211_configure_filter(local); 51209b174702601079c3a04806754be30ffbd70db4dJohannes Berg 513c7108a7111cd9e592d6ad498be37276dbea75d2bJavier Cardona ifmsh->mesh_cc_id = 0; /* Disabled */ 514c7108a7111cd9e592d6ad498be37276dbea75d2bJavier Cardona ifmsh->mesh_sp_id = 0; /* Neighbor Offset */ 515c7108a7111cd9e592d6ad498be37276dbea75d2bJavier Cardona ifmsh->mesh_auth_id = 0; /* Disabled */ 5166b9ac4425d6ec871faf54540e0f1c5ff420a8f29Rui Paulo set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); 51763c5723bc3af8d4e86984dd4ff0c78218de418d0Rui Paulo ieee80211_mesh_root_setup(ifmsh); 51864592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 5195b365834255d7c90fc724b032c814dfa297aacf9Javier Cardona sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL; 5202d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON | 5215b365834255d7c90fc724b032c814dfa297aacf9Javier Cardona BSS_CHANGED_BEACON_ENABLED | 5225b365834255d7c90fc724b032c814dfa297aacf9Javier Cardona BSS_CHANGED_BEACON_INT); 523472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 524472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 525472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergvoid ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) 526472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 52709b174702601079c3a04806754be30ffbd70db4dJohannes Berg struct ieee80211_local *local = sdata->local; 52829cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 52929cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg 53029cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg ifmsh->mesh_id_len = 0; 53129cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 53229cbe68c516a48a9a88b3226878570c6cbd83c02Johannes Berg sta_info_flush(local, NULL); 53309b174702601079c3a04806754be30ffbd70db4dJohannes Berg 534472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg del_timer_sync(&sdata->u.mesh.housekeeping_timer); 535e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo del_timer_sync(&sdata->u.mesh.mesh_path_root_timer); 536472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg /* 537b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * If the timer fired while we waited for it, it will have 538b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * requeued the work. Now the work will be running again 539b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * but will not rearm the timer again because it checks 540b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * whether the interface is running, which, at this point, 541b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg * it no longer is. 542b7413430d4d2a6168e68231d9f93763047b6d60cJohannes Berg */ 54364592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg cancel_work_sync(&sdata->work); 54409b174702601079c3a04806754be30ffbd70db4dJohannes Berg 54509b174702601079c3a04806754be30ffbd70db4dJohannes Berg local->fif_other_bss--; 54609b174702601079c3a04806754be30ffbd70db4dJohannes Berg atomic_dec(&local->iff_allmultis); 54709b174702601079c3a04806754be30ffbd70db4dJohannes Berg ieee80211_configure_filter(local); 548472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 549472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 550472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, 551472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg u16 stype, 552472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt, 553472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t len, 554472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status) 555472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 556c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg struct ieee80211_local *local = sdata->local; 557472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee802_11_elems elems; 558472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_channel *channel; 559881d948c23442173a011f1adcfe4c95bf7f27515Johannes Berg u32 supp_rates = 0; 560472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t baselen; 561472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg int freq; 562472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg enum ieee80211_band band = rx_status->band; 563472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 564472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg /* ignore ProbeResp to foreign address */ 565472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (stype == IEEE80211_STYPE_PROBE_RESP && 56647846c9b0c10808d9337d2e7d09361f3e0a0a71aJohannes Berg compare_ether_addr(mgmt->da, sdata->vif.addr)) 567472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 568472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 569472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; 570472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (baselen > len) 571472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 572472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 573472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, 574472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg &elems); 575472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 5765cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona /* ignore beacons from secure mesh peers if our security is off */ 5775cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona if (elems.rsn_len && !sdata->u.mesh.is_secure) 5785cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona return; 5795cff5e01e818029a5d2c3c31b7ae5e5e7ee70452Javier Cardona 580472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (elems.ds_params && elems.ds_params_len == 1) 58159eb21a6504731fc16db4cf9463065dd61093e08Bruno Randolf freq = ieee80211_channel_to_frequency(elems.ds_params[0], band); 582472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg else 583472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg freq = rx_status->freq; 584472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 585472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg channel = ieee80211_get_channel(local->hw.wiphy, freq); 586472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 587472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) 588472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg return; 589472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 590472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (elems.mesh_id && elems.mesh_config && 591472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_matches_local(&elems, sdata)) { 592472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg supp_rates = ieee80211_sta_get_rates(local, &elems, band); 593472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 594472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_neighbour_update(mgmt->sa, supp_rates, sdata, 595472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_peer_accepts_plinks(&elems)); 596472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg } 597472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 598472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 599472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergstatic void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, 600472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt, 601472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg size_t len, 602472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status) 603472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 604472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg switch (mgmt->u.action.category) { 60597ad9139fd68b5c71f44d28d3f9788d89cfd4916Javier Cardona case WLAN_CATEGORY_MESH_PLINK: 606472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_rx_plink_frame(sdata, mgmt, len, rx_status); 607472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 60897ad9139fd68b5c71f44d28d3f9788d89cfd4916Javier Cardona case WLAN_CATEGORY_MESH_PATH_SEL: 609472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_rx_path_sel_frame(sdata, mgmt, len); 610472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 611472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg } 612472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 613472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 6141fa57d017366fb26b58af110a38b36a4f0214a62Johannes Bergvoid ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 6151fa57d017366fb26b58af110a38b36a4f0214a62Johannes Berg struct sk_buff *skb) 616472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 617472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_rx_status *rx_status; 618472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh; 619472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_mgmt *mgmt; 620472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg u16 stype; 621472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 622472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh = &sdata->u.mesh; 623472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 624f1d58c2521eb160178b2151d6326d8dc5d7c8560Johannes Berg rx_status = IEEE80211_SKB_RXCB(skb); 625472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mgmt = (struct ieee80211_mgmt *) skb->data; 626472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; 627472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 628472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg switch (stype) { 629472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_PROBE_RESP: 630472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_BEACON: 631472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len, 632472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rx_status); 633472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 634472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg case IEEE80211_STYPE_ACTION: 635472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status); 636472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg break; 637472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg } 638472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 639472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 6401fa57d017366fb26b58af110a38b36a4f0214a62Johannes Bergvoid ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata) 641472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 642472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 643472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 644472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (ifmsh->preq_queue_len && 645472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg time_after(jiffies, 646472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval))) 647472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg mesh_path_start_discovery(sdata); 648472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 64918889231e4527dfe23145efe318e74744794a95dJavier Cardona if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags)) 65018889231e4527dfe23145efe318e74744794a95dJavier Cardona mesh_mpath_table_grow(); 65118889231e4527dfe23145efe318e74744794a95dJavier Cardona 652dcac908babcd8ce21057e476c8df609b28ad2cd8Nick Ledovskikh if (test_and_clear_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags)) 65318889231e4527dfe23145efe318e74744794a95dJavier Cardona mesh_mpp_table_grow(); 65418889231e4527dfe23145efe318e74744794a95dJavier Cardona 65518889231e4527dfe23145efe318e74744794a95dJavier Cardona if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags)) 656472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_housekeeping(sdata, ifmsh); 657e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo 658e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo if (test_and_clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags)) 659e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo ieee80211_mesh_rootpath(sdata); 660472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 661472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 662472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Bergvoid ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) 663472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg{ 664472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_sub_if_data *sdata; 665472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 666472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rcu_read_lock(); 667472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) 668472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg if (ieee80211_vif_is_mesh(&sdata->vif)) 66964592c8fc0e99d445fc3fdedddeb6088e20086f1Johannes Berg ieee80211_queue_work(&local->hw, &sdata->work); 670472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg rcu_read_unlock(); 671472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 672472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 673902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Bergvoid ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) 674902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg{ 675472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 676472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 677472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg setup_timer(&ifmsh->housekeeping_timer, 678472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ieee80211_mesh_housekeeping_timer, 679472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg (unsigned long) sdata); 680472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg 681472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->accepting_plinks = true; 682472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->preq_id = 0; 683d19b3bf6384e66ac6e11a61ee31ed2cfe149f4d8Rui Paulo ifmsh->sn = 0; 684472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg atomic_set(&ifmsh->mpaths, 0); 685f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene mesh_rmc_init(sdata); 686472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg ifmsh->last_preq = jiffies; 687902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg /* Allocate all mesh structures when creating the first mesh interface. */ 688902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg if (!mesh_allocated) 689902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg ieee80211s_init(); 690472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg setup_timer(&ifmsh->mesh_path_timer, 691902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg ieee80211_mesh_path_timer, 692902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg (unsigned long) sdata); 693e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo setup_timer(&ifmsh->mesh_path_root_timer, 694e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo ieee80211_mesh_path_root_timer, 695e304bfd30f356f7b75d30cad0029ecca705fd590Rui Paulo (unsigned long) sdata); 696472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg INIT_LIST_HEAD(&ifmsh->preq_queue.list); 697472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg spin_lock_init(&ifmsh->mesh_preq_queue_lock); 698472dbc45dc1966284de72d7de15690c17ed2cf33Johannes Berg} 699