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net/mac80211/mesh.c
28.8 KB
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/* |
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* Copyright (c) 2008, 2009 open80211s Ltd. |
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* Authors: Luis Carlos Cobo <luisca@cozybit.com> * Javier Cardona <javier@cozybit.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ |
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#include <linux/slab.h> |
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#include <asm/unaligned.h> |
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#include "ieee80211_i.h" #include "mesh.h" |
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static int mesh_allocated; |
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static struct kmem_cache *rm_cache; |
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bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt) { return (mgmt->u.action.u.mesh_action.action_code == WLAN_MESH_ACTION_HWMP_PATH_SELECTION); } |
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void ieee80211s_init(void) { mesh_pathtbl_init(); mesh_allocated = 1; rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry), 0, 0, NULL); } void ieee80211s_stop(void) { |
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if (!mesh_allocated) return; |
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mesh_pathtbl_unregister(); kmem_cache_destroy(rm_cache); } |
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static void ieee80211_mesh_housekeeping_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (void *) data; struct ieee80211_local *local = sdata->local; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
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set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); |
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|
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ieee80211_queue_work(&local->hw, &sdata->work); |
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} |
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/** * mesh_matches_local - check if the config of a mesh point matches ours * |
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* @sdata: local mesh subif |
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* @ie: information elements of a management frame from the mesh peer |
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* * This function checks if the mesh configuration of a mesh point matches the * local mesh configuration, i.e. if both nodes belong to the same mesh network. */ |
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bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *ie) |
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{ |
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struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
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struct ieee80211_local *local = sdata->local; |
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u32 basic_rates = 0; |
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struct cfg80211_chan_def sta_chan_def; |
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|
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/* * As support for each feature is added, check for matching * - On mesh config capabilities * - Power Save Support En * - Sync support enabled * - Sync support active * - Sync support required from peer * - MDA enabled * - Power management control on fc */ |
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if (!(ifmsh->mesh_id_len == ie->mesh_id_len && memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) |
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return false; |
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|
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ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata), |
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&basic_rates); |
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if (sdata->vif.bss_conf.basic_rates != basic_rates) |
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return false; |
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|
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ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan, ie->ht_operation, &sta_chan_def); if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef, &sta_chan_def)) |
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return false; |
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|
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return true; |
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} /** * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links * * @ie: information elements of a management frame from the mesh peer |
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*/ |
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bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) |
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{ |
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return (ie->mesh_config->meshconf_cap & |
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IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; |
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} /** |
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* mesh_accept_plinks_update - update accepting_plink in local mesh beacons |
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* |
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* @sdata: mesh interface in which mesh beacons are going to be updated |
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* * Returns: beacon changed flag if the beacon content changed. |
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*/ |
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u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) |
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{ |
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bool free_plinks; |
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u32 changed = 0; |
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/* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0, * the mesh interface might be able to establish plinks with peers that |
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* are already on the table but are not on PLINK_ESTAB state. However, * in general the mesh interface is not accepting peer link requests * from new peers, and that must be reflected in the beacon |
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*/ free_plinks = mesh_plink_availables(sdata); |
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if (free_plinks != sdata->u.mesh.accepting_plinks) { sdata->u.mesh.accepting_plinks = free_plinks; changed = BSS_CHANGED_BEACON; } return changed; |
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} |
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/* * mesh_sta_cleanup - clean up any mesh sta state * * @sta: mesh sta to clean up. */ void mesh_sta_cleanup(struct sta_info *sta) { struct ieee80211_sub_if_data *sdata = sta->sdata; u32 changed; /* * maybe userspace handles peer allocation and peering, but in either * case the beacon is still generated by the kernel and we might need * an update. */ changed = mesh_accept_plinks_update(sdata); |
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if (!sdata->u.mesh.user_mpm) { |
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changed |= mesh_plink_deactivate(sta); del_timer_sync(&sta->plink_timer); } if (changed) |
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ieee80211_mbss_info_change_notify(sdata, changed); |
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} |
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int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) |
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{ |
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int i; |
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sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL); if (!sdata->u.mesh.rmc) |
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return -ENOMEM; |
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sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; |
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for (i = 0; i < RMC_BUCKETS; i++) |
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INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i]); |
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return 0; } |
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void mesh_rmc_free(struct ieee80211_sub_if_data *sdata) |
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{ |
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struct mesh_rmc *rmc = sdata->u.mesh.rmc; |
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struct rmc_entry *p, *n; int i; |
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if (!sdata->u.mesh.rmc) |
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return; |
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for (i = 0; i < RMC_BUCKETS; i++) { |
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list_for_each_entry_safe(p, n, &rmc->bucket[i], list) { |
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list_del(&p->list); kmem_cache_free(rm_cache, p); } |
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} |
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kfree(rmc); |
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sdata->u.mesh.rmc = NULL; |
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} /** * mesh_rmc_check - Check frame in recent multicast cache and add if absent. * |
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* @sdata: interface |
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* @sa: source address * @mesh_hdr: mesh_header * * Returns: 0 if the frame is not in the cache, nonzero otherwise. * * Checks using the source address and the mesh sequence number if we have * received this frame lately. If the frame is not in the cache, it is added to * it. */ |
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int mesh_rmc_check(struct ieee80211_sub_if_data *sdata, const u8 *sa, struct ieee80211s_hdr *mesh_hdr) |
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{ |
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struct mesh_rmc *rmc = sdata->u.mesh.rmc; |
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u32 seqnum = 0; int entries = 0; u8 idx; struct rmc_entry *p, *n; /* Don't care about endianness since only match matters */ |
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memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; |
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list_for_each_entry_safe(p, n, &rmc->bucket[idx], list) { |
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++entries; if (time_after(jiffies, p->exp_time) || |
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entries == RMC_QUEUE_MAX_LEN) { |
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list_del(&p->list); kmem_cache_free(rm_cache, p); --entries; |
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} else if ((seqnum == p->seqnum) && ether_addr_equal(sa, p->sa)) |
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return -1; } p = kmem_cache_alloc(rm_cache, GFP_ATOMIC); |
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if (!p) |
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return 0; |
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|
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p->seqnum = seqnum; p->exp_time = jiffies + RMC_TIMEOUT; memcpy(p->sa, sa, ETH_ALEN); |
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list_add(&p->list, &rmc->bucket[idx]); |
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return 0; } |
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int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u8 *pos, neighbors; u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie); if (skb_tailroom(skb) < 2 + meshconf_len) return -ENOMEM; pos = skb_put(skb, 2 + meshconf_len); *pos++ = WLAN_EID_MESH_CONFIG; *pos++ = meshconf_len; /* Active path selection protocol ID */ *pos++ = ifmsh->mesh_pp_id; /* Active path selection metric ID */ *pos++ = ifmsh->mesh_pm_id; /* Congestion control mode identifier */ *pos++ = ifmsh->mesh_cc_id; /* Synchronization protocol identifier */ *pos++ = ifmsh->mesh_sp_id; /* Authentication Protocol identifier */ *pos++ = ifmsh->mesh_auth_id; /* Mesh Formation Info - number of neighbors */ |
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neighbors = atomic_read(&ifmsh->estab_plinks); |
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/* Number of neighbor mesh STAs or 15 whichever is smaller */ neighbors = (neighbors > 15) ? 15 : neighbors; *pos++ = neighbors << 1; /* Mesh capability */ |
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*pos = IEEE80211_MESHCONF_CAPAB_FORWARDING; |
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*pos |= ifmsh->accepting_plinks ? |
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IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; |
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/* Mesh PS mode. See IEEE802.11-2012 8.4.2.100.8 */ *pos |= ifmsh->ps_peers_deep_sleep ? |
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IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL : 0x00; |
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*pos++ |= ifmsh->adjusting_tbtt ? |
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IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00; |
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*pos++ = 0x00; return 0; } |
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int mesh_add_meshid_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u8 *pos; if (skb_tailroom(skb) < 2 + ifmsh->mesh_id_len) return -ENOMEM; pos = skb_put(skb, 2 + ifmsh->mesh_id_len); *pos++ = WLAN_EID_MESH_ID; *pos++ = ifmsh->mesh_id_len; if (ifmsh->mesh_id_len) memcpy(pos, ifmsh->mesh_id, ifmsh->mesh_id_len); return 0; } |
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static int mesh_add_awake_window_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u8 *pos; /* see IEEE802.11-2012 13.14.6 */ if (ifmsh->ps_peers_light_sleep == 0 && ifmsh->ps_peers_deep_sleep == 0 && ifmsh->nonpeer_pm == NL80211_MESH_POWER_ACTIVE) return 0; if (skb_tailroom(skb) < 4) return -ENOMEM; pos = skb_put(skb, 2 + 2); *pos++ = WLAN_EID_MESH_AWAKE_WINDOW; *pos++ = 2; put_unaligned_le16(ifmsh->mshcfg.dot11MeshAwakeWindowDuration, pos); return 0; } |
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int mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u8 offset, len; const u8 *data; if (!ifmsh->ie || !ifmsh->ie_len) return 0; /* fast-forward to vendor IEs */ offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0); if (offset) { len = ifmsh->ie_len - offset; data = ifmsh->ie + offset; if (skb_tailroom(skb) < len) return -ENOMEM; memcpy(skb_put(skb, len), data, len); } return 0; } |
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int mesh_add_rsn_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u8 len = 0; const u8 *data; if (!ifmsh->ie || !ifmsh->ie_len) return 0; /* find RSN IE */ data = ifmsh->ie; while (data < ifmsh->ie + ifmsh->ie_len) { if (*data == WLAN_EID_RSN) { len = data[1] + 2; break; } data++; } if (len) { if (skb_tailroom(skb) < len) return -ENOMEM; memcpy(skb_put(skb, len), data, len); } return 0; } |
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static int mesh_add_ds_params_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ |
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struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; |
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u8 *pos; |
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|
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if (skb_tailroom(skb) < 3) return -ENOMEM; |
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rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); if (WARN_ON(!chanctx_conf)) { rcu_read_unlock(); return -EINVAL; } |
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chan = chanctx_conf->def.chan; |
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rcu_read_unlock(); |
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pos = skb_put(skb, 2 + 1); *pos++ = WLAN_EID_DS_PARAMS; *pos++ = 1; *pos++ = ieee80211_frequency_to_channel(chan->center_freq); |
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|
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return 0; |
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} |
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int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_local *local = sdata->local; |
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enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
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struct ieee80211_supported_band *sband; u8 *pos; |
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sband = local->hw.wiphy->bands[band]; |
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if (!sband->ht_cap.ht_supported || |
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sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
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return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap)) return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); |
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ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); |
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return 0; } |
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int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
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{ struct ieee80211_local *local = sdata->local; |
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struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *channel; |
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enum nl80211_channel_type channel_type = |
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cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef); |
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struct ieee80211_supported_band *sband; struct ieee80211_sta_ht_cap *ht_cap; |
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u8 *pos; |
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rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); if (WARN_ON(!chanctx_conf)) { rcu_read_unlock(); return -EINVAL; } |
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channel = chanctx_conf->def.chan; |
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rcu_read_unlock(); sband = local->hw.wiphy->bands[channel->band]; ht_cap = &sband->ht_cap; |
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if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT) return 0; |
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if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_operation)) |
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return -ENOMEM; |
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pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation)); |
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ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef, |
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sdata->vif.bss_conf.ht_operation_mode); |
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return 0; } |
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|
2e3c87368 mac80211: support... |
440 441 442 443 |
static void ieee80211_mesh_path_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; |
5bb644a0f mac80211: cancel/... |
444 |
|
690205f18 mac80211: cleanup... |
445 |
ieee80211_queue_work(&sdata->local->hw, &sdata->work); |
2e3c87368 mac80211: support... |
446 |
} |
e304bfd30 mac80211: impleme... |
447 448 449 450 451 |
static void ieee80211_mesh_path_root_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
e304bfd30 mac80211: impleme... |
452 453 |
set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); |
690205f18 mac80211: cleanup... |
454 |
ieee80211_queue_work(&sdata->local->hw, &sdata->work); |
e304bfd30 mac80211: impleme... |
455 |
} |
63c5723bc mac80211: add nl8... |
456 457 |
void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) { |
dbb912cd4 mac80211: invoke ... |
458 |
if (ifmsh->mshcfg.dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT) |
63c5723bc mac80211: add nl8... |
459 460 461 462 463 464 465 |
set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); else { clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); /* stop running timer */ del_timer_sync(&ifmsh->mesh_path_root_timer); } } |
902acc789 mac80211: clean u... |
466 |
/** |
3c5772a52 mac80211: Use 3-a... |
467 |
* ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame |
bf7cd94dc mac80211: clean u... |
468 |
* @hdr: 802.11 frame header |
3c5772a52 mac80211: Use 3-a... |
469 470 471 472 473 474 475 |
* @fc: frame control field * @meshda: destination address in the mesh * @meshsa: source address address in the mesh. Same as TA, as frame is * locally originated. * * Return the length of the 802.11 (does not include a mesh control header) */ |
15ff63653 mac80211: use fix... |
476 477 478 |
int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, const u8 *meshda, const u8 *meshsa) { |
3c5772a52 mac80211: Use 3-a... |
479 480 481 482 483 484 485 486 |
if (is_multicast_ether_addr(meshda)) { *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); /* DA TA SA */ memcpy(hdr->addr1, meshda, ETH_ALEN); memcpy(hdr->addr2, meshsa, ETH_ALEN); memcpy(hdr->addr3, meshsa, ETH_ALEN); return 24; } else { |
2154c81c3 mac80211: Mesh da... |
487 |
*fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); |
3c5772a52 mac80211: Use 3-a... |
488 489 490 491 492 493 494 495 496 497 |
/* RA TA DA SA */ memset(hdr->addr1, 0, ETH_ALEN); /* RA is resolved later */ memcpy(hdr->addr2, meshsa, ETH_ALEN); memcpy(hdr->addr3, meshda, ETH_ALEN); memcpy(hdr->addr4, meshsa, ETH_ALEN); return 30; } } /** |
902acc789 mac80211: clean u... |
498 |
* ieee80211_new_mesh_header - create a new mesh header |
902acc789 mac80211: clean u... |
499 |
* @sdata: mesh interface to be used |
bf7cd94dc mac80211: clean u... |
500 |
* @meshhdr: uninitialized mesh header |
61ad53945 mac80211: Remove ... |
501 502 503 504 505 |
* @addr4or5: 1st address in the ae header, which may correspond to address 4 * (if addr6 is NULL) or address 5 (if addr6 is present). It may * be NULL. * @addr6: 2nd address in the ae header, which corresponds to addr6 of the * mesh frame |
902acc789 mac80211: clean u... |
506 507 508 |
* * Return the header length. */ |
bf7cd94dc mac80211: clean u... |
509 510 511 |
int ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata, struct ieee80211s_hdr *meshhdr, const char *addr4or5, const char *addr6) |
902acc789 mac80211: clean u... |
512 |
{ |
bf7cd94dc mac80211: clean u... |
513 514 |
if (WARN_ON(!addr4or5 && addr6)) return 0; |
0c3cee72a net/mac80211: Cor... |
515 |
memset(meshhdr, 0, sizeof(*meshhdr)); |
bf7cd94dc mac80211: clean u... |
516 |
|
472dbc45d mac80211: split o... |
517 |
meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; |
bf7cd94dc mac80211: clean u... |
518 519 |
/* FIXME: racy -- TX on multiple queues can be concurrent */ |
472dbc45d mac80211: split o... |
520 521 |
put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum); sdata->u.mesh.mesh_seqnum++; |
bf7cd94dc mac80211: clean u... |
522 |
|
61ad53945 mac80211: Remove ... |
523 |
if (addr4or5 && !addr6) { |
3c5772a52 mac80211: Use 3-a... |
524 |
meshhdr->flags |= MESH_FLAGS_AE_A4; |
61ad53945 mac80211: Remove ... |
525 |
memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); |
bf7cd94dc mac80211: clean u... |
526 |
return 2 * ETH_ALEN; |
61ad53945 mac80211: Remove ... |
527 |
} else if (addr4or5 && addr6) { |
3c5772a52 mac80211: Use 3-a... |
528 |
meshhdr->flags |= MESH_FLAGS_AE_A5_A6; |
61ad53945 mac80211: Remove ... |
529 530 |
memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); memcpy(meshhdr->eaddr2, addr6, ETH_ALEN); |
bf7cd94dc mac80211: clean u... |
531 |
return 3 * ETH_ALEN; |
3c5772a52 mac80211: Use 3-a... |
532 |
} |
bf7cd94dc mac80211: clean u... |
533 534 |
return ETH_ALEN; |
902acc789 mac80211: clean u... |
535 |
} |
bf7cd94dc mac80211: clean u... |
536 |
static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata) |
472dbc45d mac80211: split o... |
537 |
{ |
bf7cd94dc mac80211: clean u... |
538 |
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
df3238189 mac80211: fix unn... |
539 |
u32 changed; |
472dbc45d mac80211: split o... |
540 |
|
472dbc45d mac80211: split o... |
541 542 |
ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); mesh_path_expire(sdata); |
df3238189 mac80211: fix unn... |
543 |
changed = mesh_accept_plinks_update(sdata); |
2b5e19677 mac80211: cache m... |
544 |
ieee80211_mbss_info_change_notify(sdata, changed); |
472dbc45d mac80211: split o... |
545 |
|
472dbc45d mac80211: split o... |
546 |
mod_timer(&ifmsh->housekeeping_timer, |
bf7cd94dc mac80211: clean u... |
547 548 |
round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL)); |
472dbc45d mac80211: split o... |
549 |
} |
e304bfd30 mac80211: impleme... |
550 551 552 |
static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
a69cc44fe mac80211: impleme... |
553 |
u32 interval; |
e304bfd30 mac80211: impleme... |
554 555 |
mesh_path_tx_root_frame(sdata); |
a69cc44fe mac80211: impleme... |
556 557 558 559 560 |
if (ifmsh->mshcfg.dot11MeshHWMPRootMode == IEEE80211_PROACTIVE_RANN) interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval; else interval = ifmsh->mshcfg.dot11MeshHWMProotInterval; |
e304bfd30 mac80211: impleme... |
561 |
mod_timer(&ifmsh->mesh_path_root_timer, |
a69cc44fe mac80211: impleme... |
562 |
round_jiffies(TU_TO_EXP_TIME(interval))); |
e304bfd30 mac80211: impleme... |
563 |
} |
2b5e19677 mac80211: cache m... |
564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 |
static int ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) { struct beacon_data *bcn; int head_len, tail_len; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; struct ieee80211_chanctx_conf *chanctx_conf; enum ieee80211_band band; u8 *pos; struct ieee80211_sub_if_data *sdata; int hdr_len = offsetof(struct ieee80211_mgmt, u.beacon) + sizeof(mgmt->u.beacon); sdata = container_of(ifmsh, struct ieee80211_sub_if_data, u.mesh); rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); band = chanctx_conf->def.chan->band; rcu_read_unlock(); head_len = hdr_len + 2 + /* NULL SSID */ 2 + 8 + /* supported rates */ 2 + 3; /* DS params */ tail_len = 2 + (IEEE80211_MAX_SUPP_RATES - 8) + 2 + sizeof(struct ieee80211_ht_cap) + 2 + sizeof(struct ieee80211_ht_operation) + 2 + ifmsh->mesh_id_len + 2 + sizeof(struct ieee80211_meshconf_ie) + 2 + sizeof(__le16) + /* awake window */ ifmsh->ie_len; bcn = kzalloc(sizeof(*bcn) + head_len + tail_len, GFP_KERNEL); /* need an skb for IE builders to operate on */ skb = dev_alloc_skb(max(head_len, tail_len)); if (!bcn || !skb) goto out_free; /* * pointers go into the block we allocated, * memory is | beacon_data | head | tail | */ bcn->head = ((u8 *) bcn) + sizeof(*bcn); /* fill in the head */ mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len); memset(mgmt, 0, hdr_len); mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); eth_broadcast_addr(mgmt->da); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); ieee80211_mps_set_frame_flags(sdata, NULL, (void *) mgmt); mgmt->u.beacon.beacon_int = cpu_to_le16(sdata->vif.bss_conf.beacon_int); mgmt->u.beacon.capab_info |= cpu_to_le16( sdata->u.mesh.security ? WLAN_CAPABILITY_PRIVACY : 0); pos = skb_put(skb, 2); *pos++ = WLAN_EID_SSID; *pos++ = 0x0; if (ieee80211_add_srates_ie(sdata, skb, true, band) || |
bf7cd94dc mac80211: clean u... |
628 |
mesh_add_ds_params_ie(sdata, skb)) |
2b5e19677 mac80211: cache m... |
629 630 631 632 633 634 635 636 637 638 |
goto out_free; bcn->head_len = skb->len; memcpy(bcn->head, skb->data, bcn->head_len); /* now the tail */ skb_trim(skb, 0); bcn->tail = bcn->head + bcn->head_len; if (ieee80211_add_ext_srates_ie(sdata, skb, true, band) || |
bf7cd94dc mac80211: clean u... |
639 640 641 642 643 644 645 |
mesh_add_rsn_ie(sdata, skb) || mesh_add_ht_cap_ie(sdata, skb) || mesh_add_ht_oper_ie(sdata, skb) || mesh_add_meshid_ie(sdata, skb) || mesh_add_meshconf_ie(sdata, skb) || mesh_add_awake_window_ie(sdata, skb) || mesh_add_vendor_ies(sdata, skb)) |
2b5e19677 mac80211: cache m... |
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 |
goto out_free; bcn->tail_len = skb->len; memcpy(bcn->tail, skb->data, bcn->tail_len); dev_kfree_skb(skb); rcu_assign_pointer(ifmsh->beacon, bcn); return 0; out_free: kfree(bcn); dev_kfree_skb(skb); return -ENOMEM; } static int ieee80211_mesh_rebuild_beacon(struct ieee80211_if_mesh *ifmsh) { |
2b5e19677 mac80211: cache m... |
663 664 |
struct beacon_data *old_bcn; int ret; |
2b5e19677 mac80211: cache m... |
665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 |
mutex_lock(&ifmsh->mtx); old_bcn = rcu_dereference_protected(ifmsh->beacon, lockdep_is_held(&ifmsh->mtx)); ret = ieee80211_mesh_build_beacon(ifmsh); if (ret) /* just reuse old beacon */ goto out; if (old_bcn) kfree_rcu(old_bcn, rcu_head); out: mutex_unlock(&ifmsh->mtx); return ret; } void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed) { if (sdata->vif.bss_conf.enable_beacon && (changed & (BSS_CHANGED_BEACON | BSS_CHANGED_HT | BSS_CHANGED_BASIC_RATES | BSS_CHANGED_BEACON_INT))) if (ieee80211_mesh_rebuild_beacon(&sdata->u.mesh)) return; ieee80211_bss_info_change_notify(sdata, changed); } int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) |
472dbc45d mac80211: split o... |
696 697 698 |
{ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; |
f4eabc918 mac80211: use sho... |
699 700 701 702 703 704 |
u32 changed = BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_HT | BSS_CHANGED_BASIC_RATES | BSS_CHANGED_BEACON_INT; enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
472dbc45d mac80211: split o... |
705 |
|
09b174702 mac80211: move me... |
706 707 708 709 |
local->fif_other_bss++; /* mesh ifaces must set allmulti to forward mcast traffic */ atomic_inc(&local->iff_allmultis); ieee80211_configure_filter(local); |
c7108a711 mac80211: Send me... |
710 |
ifmsh->mesh_cc_id = 0; /* Disabled */ |
c7108a711 mac80211: Send me... |
711 |
ifmsh->mesh_auth_id = 0; /* Disabled */ |
dbf498fba mac80211: Impleme... |
712 713 714 715 |
/* register sync ops from extensible synchronization framework */ ifmsh->sync_ops = ieee80211_mesh_sync_ops_get(ifmsh->mesh_sp_id); ifmsh->adjusting_tbtt = false; ifmsh->sync_offset_clockdrift_max = 0; |
6b9ac4425 mesh: use set_bit... |
716 |
set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); |
63c5723bc mac80211: add nl8... |
717 |
ieee80211_mesh_root_setup(ifmsh); |
64592c8fc mac80211: use com... |
718 |
ieee80211_queue_work(&local->hw, &sdata->work); |
70c33eaae {nl,cfg,mac}80211... |
719 720 |
sdata->vif.bss_conf.ht_operation_mode = ifmsh->mshcfg.ht_opmode; |
d6a832288 mac80211: track e... |
721 |
sdata->vif.bss_conf.enable_beacon = true; |
d934f7d0d mac80211: Use man... |
722 |
sdata->vif.bss_conf.basic_rates = |
f4eabc918 mac80211: use sho... |
723 |
ieee80211_mandatory_rates(local, band); |
39886b618 mac80211: consoli... |
724 |
changed |= ieee80211_mps_local_status_update(sdata); |
3f52b7e32 mac80211: mesh po... |
725 |
|
2b5e19677 mac80211: cache m... |
726 727 728 729 |
if (ieee80211_mesh_build_beacon(ifmsh)) { ieee80211_stop_mesh(sdata); return -ENOMEM; } |
f4eabc918 mac80211: use sho... |
730 |
ieee80211_bss_info_change_notify(sdata, changed); |
c405c6298 mac80211: manage ... |
731 732 |
netif_carrier_on(sdata->dev); |
2b5e19677 mac80211: cache m... |
733 |
return 0; |
472dbc45d mac80211: split o... |
734 735 736 737 |
} void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) { |
09b174702 mac80211: move me... |
738 |
struct ieee80211_local *local = sdata->local; |
29cbe68c5 cfg80211/mac80211... |
739 |
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
2b5e19677 mac80211: cache m... |
740 |
struct beacon_data *bcn; |
29cbe68c5 cfg80211/mac80211... |
741 |
|
c405c6298 mac80211: manage ... |
742 |
netif_carrier_off(sdata->dev); |
0d466b9c6 mac80211: improve... |
743 |
/* stop the beacon */ |
29cbe68c5 cfg80211/mac80211... |
744 |
ifmsh->mesh_id_len = 0; |
d6a832288 mac80211: track e... |
745 746 |
sdata->vif.bss_conf.enable_beacon = false; clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
29cbe68c5 cfg80211/mac80211... |
747 |
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
2b5e19677 mac80211: cache m... |
748 749 750 751 752 753 |
mutex_lock(&ifmsh->mtx); bcn = rcu_dereference_protected(ifmsh->beacon, lockdep_is_held(&ifmsh->mtx)); rcu_assign_pointer(ifmsh->beacon, NULL); kfree_rcu(bcn, rcu_head); mutex_unlock(&ifmsh->mtx); |
0d466b9c6 mac80211: improve... |
754 755 |
/* flush STAs and mpaths on this iface */ |
b998e8bb3 mac80211: remove ... |
756 |
sta_info_flush(sdata); |
0d466b9c6 mac80211: improve... |
757 |
mesh_path_flush_by_iface(sdata); |
09b174702 mac80211: move me... |
758 |
|
3f52b7e32 mac80211: mesh po... |
759 760 761 |
/* free all potentially still buffered group-addressed frames */ local->total_ps_buffered -= skb_queue_len(&ifmsh->ps.bc_buf); skb_queue_purge(&ifmsh->ps.bc_buf); |
472dbc45d mac80211: split o... |
762 |
del_timer_sync(&sdata->u.mesh.housekeeping_timer); |
e304bfd30 mac80211: impleme... |
763 |
del_timer_sync(&sdata->u.mesh.mesh_path_root_timer); |
dd4c9260e mac80211: cancel ... |
764 |
del_timer_sync(&sdata->u.mesh.mesh_path_timer); |
472dbc45d mac80211: split o... |
765 |
/* |
b7413430d mac80211: fix wor... |
766 767 768 769 770 771 |
* If the timer fired while we waited for it, it will have * requeued the work. Now the work will be running again * but will not rearm the timer again because it checks * whether the interface is running, which, at this point, * it no longer is. */ |
64592c8fc mac80211: use com... |
772 |
cancel_work_sync(&sdata->work); |
09b174702 mac80211: move me... |
773 774 775 776 |
local->fif_other_bss--; atomic_dec(&local->iff_allmultis); ieee80211_configure_filter(local); |
472dbc45d mac80211: split o... |
777 |
} |
9fb04b501 mac80211: generat... |
778 779 780 781 782 783 784 785 786 787 788 |
static void ieee80211_mesh_rx_probe_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct sk_buff *presp; struct beacon_data *bcn; struct ieee80211_mgmt *hdr; struct ieee802_11_elems elems; size_t baselen; |
511044ea0 mac80211: remove ... |
789 |
u8 *pos; |
9fb04b501 mac80211: generat... |
790 |
|
9fb04b501 mac80211: generat... |
791 792 793 794 |
pos = mgmt->u.probe_req.variable; baselen = (u8 *) pos - (u8 *) mgmt; if (baselen > len) return; |
b2e506bfc mac80211: parse V... |
795 |
ieee802_11_parse_elems(pos, len - baselen, false, &elems); |
9fb04b501 mac80211: generat... |
796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 |
/* 802.11-2012 10.1.4.3.2 */ if ((!ether_addr_equal(mgmt->da, sdata->vif.addr) && !is_broadcast_ether_addr(mgmt->da)) || elems.ssid_len != 0) return; if (elems.mesh_id_len != 0 && (elems.mesh_id_len != ifmsh->mesh_id_len || memcmp(elems.mesh_id, ifmsh->mesh_id, ifmsh->mesh_id_len))) return; rcu_read_lock(); bcn = rcu_dereference(ifmsh->beacon); if (!bcn) goto out; presp = dev_alloc_skb(local->tx_headroom + bcn->head_len + bcn->tail_len); if (!presp) goto out; skb_reserve(presp, local->tx_headroom); memcpy(skb_put(presp, bcn->head_len), bcn->head, bcn->head_len); memcpy(skb_put(presp, bcn->tail_len), bcn->tail, bcn->tail_len); hdr = (struct ieee80211_mgmt *) presp->data; hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); memcpy(hdr->da, mgmt->sa, ETH_ALEN); |
9fb04b501 mac80211: generat... |
826 827 828 829 830 |
IEEE80211_SKB_CB(presp)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; ieee80211_tx_skb(sdata, presp); out: rcu_read_unlock(); } |
472dbc45d mac80211: split o... |
831 832 833 834 835 836 |
static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, u16 stype, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { |
c6a1fa12d mac80211: minor c... |
837 |
struct ieee80211_local *local = sdata->local; |
dbf498fba mac80211: Impleme... |
838 |
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
472dbc45d mac80211: split o... |
839 840 |
struct ieee802_11_elems elems; struct ieee80211_channel *channel; |
472dbc45d mac80211: split o... |
841 842 843 844 845 846 |
size_t baselen; int freq; enum ieee80211_band band = rx_status->band; /* ignore ProbeResp to foreign address */ if (stype == IEEE80211_STYPE_PROBE_RESP && |
b203ca391 mac80211: Convert... |
847 |
!ether_addr_equal(mgmt->da, sdata->vif.addr)) |
472dbc45d mac80211: split o... |
848 849 850 851 852 853 854 |
return; baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; if (baselen > len) return; ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, |
b2e506bfc mac80211: parse V... |
855 |
false, &elems); |
472dbc45d mac80211: split o... |
856 |
|
9a90bc819 mac80211: mesh ST... |
857 858 859 860 |
/* ignore non-mesh or secure / unsecure mismatch */ if ((!elems.mesh_id || !elems.mesh_config) || (elems.rsn && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) || (!elems.rsn && sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)) |
5cff5e01e mac80211: ignore ... |
861 |
return; |
1cd8e88e1 mac80211: check D... |
862 |
if (elems.ds_params) |
59eb21a65 cfg80211: Extend ... |
863 |
freq = ieee80211_channel_to_frequency(elems.ds_params[0], band); |
472dbc45d mac80211: split o... |
864 865 866 867 868 869 870 |
else freq = rx_status->freq; channel = ieee80211_get_channel(local->hw.wiphy, freq); if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; |
9a90bc819 mac80211: mesh ST... |
871 |
if (mesh_matches_local(sdata, &elems)) |
f743ff490 mac80211: refacto... |
872 |
mesh_neighbour_update(sdata, mgmt->sa, &elems); |
dbf498fba mac80211: Impleme... |
873 874 875 876 |
if (ifmsh->sync_ops) ifmsh->sync_ops->rx_bcn_presp(sdata, stype, mgmt, &elems, rx_status); |
472dbc45d mac80211: split o... |
877 878 879 880 881 882 883 884 |
} static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { switch (mgmt->u.action.category) { |
8db098507 mac80211: update ... |
885 886 887 888 889 890 891 892 |
case WLAN_CATEGORY_SELF_PROTECTED: switch (mgmt->u.action.u.self_prot.action_code) { case WLAN_SP_MESH_PEERING_OPEN: case WLAN_SP_MESH_PEERING_CLOSE: case WLAN_SP_MESH_PEERING_CONFIRM: mesh_rx_plink_frame(sdata, mgmt, len, rx_status); break; } |
472dbc45d mac80211: split o... |
893 |
break; |
25d49e4d6 mac80211: update ... |
894 895 896 |
case WLAN_CATEGORY_MESH_ACTION: if (mesh_action_is_path_sel(mgmt)) mesh_rx_path_sel_frame(sdata, mgmt, len); |
472dbc45d mac80211: split o... |
897 898 899 |
break; } } |
1fa57d017 mac80211: use com... |
900 901 |
void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) |
472dbc45d mac80211: split o... |
902 903 |
{ struct ieee80211_rx_status *rx_status; |
472dbc45d mac80211: split o... |
904 905 |
struct ieee80211_mgmt *mgmt; u16 stype; |
f1d58c252 mac80211: push rx... |
906 |
rx_status = IEEE80211_SKB_RXCB(skb); |
472dbc45d mac80211: split o... |
907 908 909 910 911 912 913 914 915 |
mgmt = (struct ieee80211_mgmt *) skb->data; stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; switch (stype) { case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len, rx_status); break; |
9fb04b501 mac80211: generat... |
916 917 918 |
case IEEE80211_STYPE_PROBE_REQ: ieee80211_mesh_rx_probe_req(sdata, mgmt, skb->len); break; |
472dbc45d mac80211: split o... |
919 920 921 922 |
case IEEE80211_STYPE_ACTION: ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status); break; } |
472dbc45d mac80211: split o... |
923 |
} |
1fa57d017 mac80211: use com... |
924 |
void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata) |
472dbc45d mac80211: split o... |
925 |
{ |
472dbc45d mac80211: split o... |
926 |
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
472dbc45d mac80211: split o... |
927 928 929 930 931 |
if (ifmsh->preq_queue_len && time_after(jiffies, ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval))) mesh_path_start_discovery(sdata); |
18889231e mac80211: Move mp... |
932 933 |
if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags)) mesh_mpath_table_grow(); |
dcac908ba mac80211:mesh_mpp... |
934 |
if (test_and_clear_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags)) |
18889231e mac80211: Move mp... |
935 936 937 |
mesh_mpp_table_grow(); if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags)) |
bf7cd94dc mac80211: clean u... |
938 |
ieee80211_mesh_housekeeping(sdata); |
e304bfd30 mac80211: impleme... |
939 940 941 |
if (test_and_clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags)) ieee80211_mesh_rootpath(sdata); |
dbf498fba mac80211: Impleme... |
942 943 944 |
if (test_and_clear_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags)) mesh_sync_adjust_tbtt(sdata); |
472dbc45d mac80211: split o... |
945 946 947 948 949 950 951 952 |
} void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) |
370bd0059 mac80211: Don't r... |
953 954 |
if (ieee80211_vif_is_mesh(&sdata->vif) && ieee80211_sdata_running(sdata)) |
64592c8fc mac80211: use com... |
955 |
ieee80211_queue_work(&local->hw, &sdata->work); |
472dbc45d mac80211: split o... |
956 957 |
rcu_read_unlock(); } |
902acc789 mac80211: clean u... |
958 959 |
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) { |
472dbc45d mac80211: split o... |
960 |
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
ad2d223aa mac80211: assign ... |
961 |
static u8 zero_addr[ETH_ALEN] = {}; |
472dbc45d mac80211: split o... |
962 |
|
472dbc45d mac80211: split o... |
963 964 965 |
setup_timer(&ifmsh->housekeeping_timer, ieee80211_mesh_housekeeping_timer, (unsigned long) sdata); |
472dbc45d mac80211: split o... |
966 |
|
472dbc45d mac80211: split o... |
967 968 |
ifmsh->accepting_plinks = true; ifmsh->preq_id = 0; |
d19b3bf63 mac80211: replace... |
969 |
ifmsh->sn = 0; |
5ee68e5b3 mac80211: mesh ga... |
970 |
ifmsh->num_gates = 0; |
472dbc45d mac80211: split o... |
971 |
atomic_set(&ifmsh->mpaths, 0); |
f698d856f replace net_devic... |
972 |
mesh_rmc_init(sdata); |
472dbc45d mac80211: split o... |
973 |
ifmsh->last_preq = jiffies; |
dca7e9430 {nl,cfg,mac}80211... |
974 |
ifmsh->next_perr = jiffies; |
902acc789 mac80211: clean u... |
975 976 977 |
/* Allocate all mesh structures when creating the first mesh interface. */ if (!mesh_allocated) ieee80211s_init(); |
472dbc45d mac80211: split o... |
978 |
setup_timer(&ifmsh->mesh_path_timer, |
902acc789 mac80211: clean u... |
979 980 |
ieee80211_mesh_path_timer, (unsigned long) sdata); |
e304bfd30 mac80211: impleme... |
981 982 983 |
setup_timer(&ifmsh->mesh_path_root_timer, ieee80211_mesh_path_root_timer, (unsigned long) sdata); |
472dbc45d mac80211: split o... |
984 |
INIT_LIST_HEAD(&ifmsh->preq_queue.list); |
3f52b7e32 mac80211: mesh po... |
985 |
skb_queue_head_init(&ifmsh->ps.bc_buf); |
472dbc45d mac80211: split o... |
986 |
spin_lock_init(&ifmsh->mesh_preq_queue_lock); |
dbf498fba mac80211: Impleme... |
987 |
spin_lock_init(&ifmsh->sync_offset_lock); |
2b5e19677 mac80211: cache m... |
988 989 |
RCU_INIT_POINTER(ifmsh->beacon, NULL); mutex_init(&ifmsh->mtx); |
ad2d223aa mac80211: assign ... |
990 991 |
sdata->vif.bss_conf.bssid = zero_addr; |
472dbc45d mac80211: split o... |
992 |
} |