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Release 4.8 net/mac80211/mesh.c

Directory: net/mac80211
/*
 * Copyright (c) 2008, 2009 open80211s Ltd.
 * 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.
 */

#include <linux/slab.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "mesh.h"
#include "driver-ops.h"


static int mesh_allocated;

static struct kmem_cache *rm_cache;


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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PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen27100.00%1100.00%
Total27100.00%1100.00%


void ieee80211s_init(void) { mesh_allocated = 1; rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry), 0, 0, NULL); }

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PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus30100.00%1100.00%
Total30100.00%1100.00%


void ieee80211s_stop(void) { if (!mesh_allocated) return; kmem_cache_destroy(rm_cache); }

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PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus1266.67%150.00%
johannes bergjohannes berg633.33%150.00%
Total18100.00%2100.00%


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; set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); ieee80211_queue_work(&local->hw, &sdata->work); }

Contributors

PersonTokensPropCommitsCommitProp
johannes bergjohannes berg5686.15%233.33%
rui paulorui paulo69.23%116.67%
luis r. rodriguezluis r. rodriguez23.08%233.33%
javier cardonajavier cardona11.54%116.67%
Total65100.00%6100.00%

/** * mesh_matches_local - check if the config of a mesh point matches ours * * @sdata: local mesh subif * @ie: information elements of a management frame from the mesh peer * * 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. */
bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *ie) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u32 basic_rates = 0; struct cfg80211_chan_def sta_chan_def; /* * 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 */ 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))) return false; ieee80211_sta_get_rates(sdata, ie, ieee80211_get_sdata_band(sdata), &basic_rates); if (sdata->vif.bss_conf.basic_rates != basic_rates) return false; cfg80211_chandef_create(&sta_chan_def, sdata->vif.bss_conf.chandef.chan, NL80211_CHAN_NO_HT); ieee80211_chandef_ht_oper(ie->ht_operation, &sta_chan_def); ieee80211_chandef_vht_oper(ie->vht_operation, &sta_chan_def); if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef, &sta_chan_def)) return false; return true; }

Contributors

PersonTokensPropCommitsCommitProp
johannes bergjohannes berg6629.73%631.58%
luis carlos cobo rusluis carlos cobo rus6529.28%210.53%
rui paulorui paulo2511.26%210.53%
thomas pedersenthomas pedersen2410.81%210.53%
ashok nagarajanashok nagarajan167.21%315.79%
javier cardonajavier cardona146.31%15.26%
bob copelandbob copeland94.05%15.26%
jasper bryant-greenejasper bryant-greene20.90%15.26%
simon wunderlichsimon wunderlich10.45%15.26%
Total222100.00%19100.00%

/** * 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 */
bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) { return (ie->mesh_config->meshconf_cap & IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus2086.96%133.33%
rui paulorui paulo28.70%133.33%
marco porschmarco porsch14.35%133.33%
Total23100.00%3100.00%

/** * mesh_accept_plinks_update - update accepting_plink in local mesh beacons * * @sdata: mesh interface in which mesh beacons are going to be updated * * Returns: beacon changed flag if the beacon content changed. */
u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) { bool free_plinks; u32 changed = 0; /* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0, * the mesh interface might be able to establish plinks with peers that * 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 */ free_plinks = mesh_plink_availables(sdata); if (free_plinks != sdata->u.mesh.accepting_plinks) { sdata->u.mesh.accepting_plinks = free_plinks; changed = BSS_CHANGED_BEACON; } return changed; }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus3154.39%240.00%
marco porschmarco porsch2340.35%120.00%
johannes bergjohannes berg35.26%240.00%
Total57100.00%5100.00%

/* * 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 = mesh_plink_deactivate(sta); if (changed) ieee80211_mbss_info_change_notify(sdata, changed); }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen3694.74%250.00%
bob copelandbob copeland12.63%125.00%
jouni malinenjouni malinen12.63%125.00%
Total38100.00%4100.00%


int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) { int i; sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL); if (!sdata->u.mesh.rmc) return -ENOMEM; sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; for (i = 0; i < RMC_BUCKETS; i++) INIT_HLIST_HEAD(&sdata->u.mesh.rmc->bucket[i]); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus8792.55%125.00%
johannes bergjohannes berg44.26%125.00%
jasper bryant-greenejasper bryant-greene22.13%125.00%
bob copelandbob copeland11.06%125.00%
Total94100.00%4100.00%


void mesh_rmc_free(struct ieee80211_sub_if_data *sdata) { struct mesh_rmc *rmc = sdata->u.mesh.rmc; struct rmc_entry *p; struct hlist_node *n; int i; if (!sdata->u.mesh.rmc) return; for (i = 0; i < RMC_BUCKETS; i++) { hlist_for_each_entry_safe(p, n, &rmc->bucket[i], list) { hlist_del(&p->list); kmem_cache_free(rm_cache, p); } } kfree(rmc); sdata->u.mesh.rmc = NULL; }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus9287.62%116.67%
johannes bergjohannes berg54.76%233.33%
bob copelandbob copeland54.76%116.67%
jasper bryant-greenejasper bryant-greene21.90%116.67%
thomas pedersenthomas pedersen10.95%116.67%
Total105100.00%6100.00%

/** * mesh_rmc_check - Check frame in recent multicast cache and add if absent. * * @sdata: interface * @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. */
int mesh_rmc_check(struct ieee80211_sub_if_data *sdata, const u8 *sa, struct ieee80211s_hdr *mesh_hdr) { struct mesh_rmc *rmc = sdata->u.mesh.rmc; u32 seqnum = 0; int entries = 0; u8 idx; struct rmc_entry *p; struct hlist_node *n; if (!rmc) return -1; /* Don't care about endianness since only match matters */ memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; hlist_for_each_entry_safe(p, n, &rmc->bucket[idx], list) { ++entries; if (time_after(jiffies, p->exp_time) || entries == RMC_QUEUE_MAX_LEN) { hlist_del(&p->list); kmem_cache_free(rm_cache, p); --entries; } else if ((seqnum == p->seqnum) && ether_addr_equal(sa, p->sa)) return -1; } p = kmem_cache_alloc(rm_cache, GFP_ATOMIC); if (!p) return 0; p->seqnum = seqnum; p->exp_time = jiffies + RMC_TIMEOUT; memcpy(p->sa, sa, ETH_ALEN); hlist_add_head(&p->list, &rmc->bucket[idx]); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus20688.79%222.22%
bob copelandbob copeland156.47%222.22%
johannes bergjohannes berg73.02%222.22%
jasper bryant-greenejasper bryant-greene20.86%111.11%
thomas pedersenthomas pedersen10.43%111.11%
joe perchesjoe perches10.43%111.11%
Total232100.00%9100.00%


int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { 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; /* save a pointer for quick updates in pre-tbtt */ ifmsh->meshconf_offset = pos - skb->data; /* 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 */ neighbors = atomic_read(&ifmsh->estab_plinks); neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS); *pos++ = neighbors << 1; /* Mesh capability */ *pos = 0x00; *pos |= ifmsh->mshcfg.dot11MeshForwarding ? IEEE80211_MESHCONF_CAPAB_FORWARDING : 0x00; *pos |= ifmsh->accepting_plinks ? IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; /* Mesh PS mode. See IEEE802.11-2012 8.4.2.100.8 */ *pos |= ifmsh->ps_peers_deep_sleep ? IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL : 0x00; *pos++ |= ifmsh->adjusting_tbtt ? IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00; *pos++ = 0x00; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen9039.30%216.67%
luis carlos cobo rusluis carlos cobo rus7231.44%18.33%
marco porschmarco porsch156.55%216.67%
rui paulorui paulo156.55%216.67%
chun-yeow yeohchun-yeow yeoh135.68%18.33%
javier cardonajavier cardona114.80%18.33%
jacob minshalljacob minshall73.06%18.33%
johannes bergjohannes berg52.18%18.33%
jasper bryant-greenejasper bryant-greene10.44%18.33%
Total229100.00%12100.00%


int mesh_add_meshid_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { 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; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen5152.58%133.33%
luis carlos cobo rusluis carlos cobo rus4142.27%133.33%
johannes bergjohannes berg55.15%133.33%
Total97100.00%3100.00%


static int mesh_add_awake_window_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { 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; }

Contributors

PersonTokensPropCommitsCommitProp
marco porschmarco porsch10195.28%150.00%
johannes bergjohannes berg54.72%150.00%
Total106100.00%2100.00%


int mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { 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; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen9982.50%116.67%
luis carlos cobo rusluis carlos cobo rus75.83%116.67%
johannes bergjohannes berg65.00%233.33%
javier cardonajavier cardona54.17%116.67%
rui paulorui paulo32.50%116.67%
Total120100.00%6100.00%


int mesh_add_rsn_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { 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 = cfg80211_find_ie(WLAN_EID_RSN, ifmsh->ie, ifmsh->ie_len); if (!data) return 0; len = data[1] + 2; if (skb_tailroom(skb) < len) return -ENOMEM; memcpy(skb_put(skb, len), data, len); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen9885.22%125.00%
bob copelandbob copeland119.57%125.00%
johannes bergjohannes berg54.35%125.00%
rui paulorui paulo10.87%125.00%
Total115100.00%4100.00%


static int mesh_add_ds_params_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; u8 *pos; if (skb_tailroom(skb) < 3) return -ENOMEM; rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); if (WARN_ON(!chanctx_conf)) { rcu_read_unlock(); return -EINVAL; } chan = chanctx_conf->def.chan; rcu_read_unlock(); pos = skb_put(skb, 2 + 1); *pos++ = WLAN_EID_DS_PARAMS; *pos++ = 1; *pos++ = ieee80211_frequency_to_channel(chan->center_freq); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johannes bergjohannes berg5746.72%457.14%
thomas pedersenthomas pedersen4637.70%114.29%
javier cardonajavier cardona1814.75%114.29%
luis carlos cobo rusluis carlos cobo rus10.82%114.29%
Total122100.00%7100.00%


int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; enum nl80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u8 *pos; sband = local->hw.wiphy->bands[band]; if (!sband->ht_cap.ht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap)) return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen10768.59%112.50%
simon wunderlichsimon wunderlich2415.38%112.50%
johannes bergjohannes berg2214.10%562.50%
ben greearben greear31.92%112.50%
Total156100.00%8100.00%


int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *channel; struct ieee80211_supported_band *sband; struct ieee80211_sta_ht_cap *ht_cap; u8 *pos; rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); if (WARN_ON(!chanctx_conf)) { rcu_read_unlock(); return -EINVAL; } channel = chanctx_conf->def.chan; rcu_read_unlock(); sband = local->hw.wiphy->bands[channel->band]; ht_cap = &sband->ht_cap; if (!ht_cap->ht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_operation)) return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation)); ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef, sdata->vif.bss_conf.ht_operation_mode, false); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas pedersenthomas pedersen9944.80%112.50%
johannes bergjohannes berg7835.29%450.00%
bob copelandbob copeland3415.38%112.50%
ashok nagarajanashok nagarajan83.62%112.50%
arik nemtsovarik nemtsov20.90%112.50%
Total221100.00%8100.00%


int mesh_add_vht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; enum nl80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u8 *pos; sband = local->hw.wiphy->bands[band]; if (!sband->vht_cap.vht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_vht_cap)) return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_cap)); ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, sband->vht_cap.cap); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
bob copelandbob copeland15599.36%150.00%
johannes bergjohannes berg10.64%150.00%
Total156100.00%2100.00%


int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *channel; struct ieee80211_supported_band *sband; struct ieee80211_sta_vht_cap *vht_cap; u8 *pos; rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); if (WARN_ON(!chanctx_conf)) { rcu_read_unlock(); return -EINVAL; } channel = chanctx_conf->def.chan; rcu_read_unlock(); sband = local->hw.wiphy->bands[channel->band]; vht_cap = &sband->vht_cap; if (!vht_cap->vht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_vht_operation)) return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_operation)); ieee80211_ie_build_vht_oper(pos, vht_cap, &sdata->vif.bss_conf.chandef); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
bob copelandbob copeland211100.00%1100.00%
Total211100.00%1100.00%


static void ieee80211_mesh_path_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; ieee80211_queue_work(&sdata->local->hw, &sdata->work); }

Contributors

PersonTokensPropCommitsCommitProp
luis carlos cobo rusluis carlos cobo rus3286.49%120.00%
stanislaw gruszkastanislaw gruszka25.41%120.00%
luis r. rodriguezluis r. rodriguez25.41%240.00%
johannes bergjohannes berg12.70%120.00%
Total37100.00%5100.00%


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; set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); ieee80211_queue_work(&sdata->local->hw, &sdata->work); }

Contributors

PersonTokensPropCommitsCommitProp
rui paulorui paulo5694.92%133.33%
stanislaw gruszkastanislaw gruszka23.39%133.33%
johannes bergjohannes berg11.69%133.33%
Total59100.00%3100.00%


void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) { if (ifmsh->mshcfg.dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT) 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); } }

Contributors

PersonTokensPropCommitsCommitProp
rui paulorui paulo5096.15%150.00%
chun-yeow yeohchun-yeow yeoh23.85%150.00%
Total52100.00%2100.00%

/** * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame * @hdr: 802.11 frame header * @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) */
int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, const u8 *meshda, const u8 *meshsa) { 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 { *fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); /* RA TA DA SA */ eth_zero_addr(hdr->addr1); /* RA is resolved later */ memcpy(hdr->addr2, meshsa, ETH_ALEN); memcpy(hdr->addr3, meshda, ETH_ALEN); memcpy(hdr->addr4, meshsa, ETH_ALEN); return 30; } }

Contributors

PersonTokensPropCommitsCommitProp
javier cardonajavier cardona13196.32%133.33%
johannes bergjohannes berg42.94%133.33%
joe perchesjoe perches10.74%133.33%
Total136100.00%3100.00%

/** * ieee80211_new_mesh_header - create a new mesh header * @sdata: mesh interface to be used * @meshhdr: uninitialized mesh header * @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 * * Return the header length. */
unsigned int ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata, struct ieee80211s_hdr *meshhdr, const char *addr4or5, const char *addr6) { if (WARN_ON(!addr4or5 && addr6)) return 0; memset(meshhdr, 0, sizeof(*meshhdr)); meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; /* FIXME: racy -- TX on multiple queues can be concurrent */ put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum); sdata->u.mesh.mesh_seqnum++; if (addr4or5 && !addr6) { meshhdr->flags |= MESH_FLAGS_AE_A4; memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); return 2 * ETH_ALEN; } else if (addr4or5 && addr6) { meshhdr->flags |= MESH_FLAGS_AE_A5_A6; memcpy(meshhdr->eaddr1, addr4or5, ETH_ALEN); memcpy(meshhdr