diff options
Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r-- | net/mac80211/cfg.c | 169 |
1 files changed, 109 insertions, 60 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 85032dcaa595..3d66e40af7a9 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -39,7 +39,7 @@ static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, memcpy(sdata->vif.bss_conf.mu_group.position, params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, WLAN_USER_POSITION_LEN); - ieee80211_link_info_change_notify(sdata, 0, + ieee80211_link_info_change_notify(sdata, &sdata->deflink, BSS_CHANGED_MU_GROUPS); /* don't care about endianness - just check for 0 */ memcpy(&membership, params->vht_mumimo_groups, @@ -841,8 +841,8 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy, sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); if (sdata) { - ieee80211_link_release_channel(sdata->link[0]); - ret = ieee80211_link_use_channel(sdata->link[0], + ieee80211_link_release_channel(&sdata->deflink); + ret = ieee80211_link_use_channel(&sdata->deflink, chandef, IEEE80211_CHANCTX_EXCLUSIVE); } @@ -1008,6 +1008,7 @@ ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, } static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, + struct ieee80211_link_data *link, struct cfg80211_beacon_data *params, const struct ieee80211_csa_settings *csa, const struct ieee80211_color_change_settings *cca) @@ -1017,9 +1018,7 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, int new_head_len, new_tail_len; int size, err; u32 changed = BSS_CHANGED_BEACON; - struct ieee80211_link_data *link = sdata->link[params->link_id]; - struct ieee80211_bss_conf *link_conf = - sdata->vif.link_conf[params->link_id]; + struct ieee80211_bss_conf *link_conf = link->conf; old = sdata_dereference(link->u.ap.beacon, sdata); @@ -1153,8 +1152,14 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, int i, err; int prev_beacon_int; unsigned int link_id = params->beacon.link_id; - struct ieee80211_link_data *link = sdata->link[link_id]; - struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id]; + struct ieee80211_link_data *link; + struct ieee80211_bss_conf *link_conf; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + return -ENOLINK; + + link_conf = link->conf; old = sdata_dereference(link->u.ap.beacon, sdata); if (old) @@ -1264,7 +1269,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) link_conf->beacon_tx_rate = params->beacon_rate; - err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL); + err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); if (err < 0) goto error; changed |= err; @@ -1300,7 +1305,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, ieee80211_recalc_dtim(local, sdata); ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); - ieee80211_link_info_change_notify(sdata, link_id, changed); + ieee80211_link_info_change_notify(sdata, link, changed); netif_carrier_on(dev); list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) @@ -1320,25 +1325,30 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_beacon_data *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_link_data *link; struct beacon_data *old; int err; - struct ieee80211_bss_conf *link_conf = - sdata->vif.link_conf[params->link_id]; + struct ieee80211_bss_conf *link_conf; sdata_assert_lock(sdata); + link = sdata_dereference(sdata->link[params->link_id], sdata); + if (!link) + return -ENOLINK; + + link_conf = link->conf; + /* don't allow changing the beacon while a countdown is in place - offset * of channel switch counter may change */ if (link_conf->csa_active || link_conf->color_change_active) return -EBUSY; - old = sdata_dereference(sdata->link[params->link_id]->u.ap.beacon, - sdata); + old = sdata_dereference(link->u.ap.beacon, sdata); if (!old) return -ENOENT; - err = ieee80211_assign_beacon(sdata, params, NULL, NULL); + err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); if (err < 0) return err; @@ -1348,7 +1358,7 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, err |= BSS_CHANGED_HE_BSS_COLOR; } - ieee80211_link_info_change_notify(sdata, params->link_id, err); + ieee80211_link_info_change_notify(sdata, link, err); return 0; } @@ -1373,8 +1383,9 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, struct fils_discovery_data *old_fils_discovery; struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; struct cfg80211_chan_def chandef; - struct ieee80211_link_data *link = sdata->link[link_id]; - struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id]; + struct ieee80211_link_data *link = + sdata_dereference(sdata->link[link_id], sdata); + struct ieee80211_bss_conf *link_conf = link->conf; sdata_assert_lock(sdata); @@ -1431,7 +1442,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, sdata->beacon_rate_set = false; sdata->vif.cfg.ssid_len = 0; clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); - ieee80211_link_info_change_notify(sdata, link_id, + ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_BEACON_ENABLED); if (sdata->wdev.cac_started) { @@ -1589,14 +1600,16 @@ static int sta_link_apply_parameters(struct ieee80211_local *local, struct ieee80211_supported_band *sband; struct ieee80211_sub_if_data *sdata = sta->sdata; u32 link_id = params->link_id < 0 ? 0 : params->link_id; + struct ieee80211_link_data *link = + sdata_dereference(sdata->link[link_id], sdata); struct link_sta_info *link_sta = rcu_dereference_protected(sta->link[link_id], lockdep_is_held(&local->sta_mtx)); - if (!link_sta) + if (!link || !link_sta) return -EINVAL; - sband = ieee80211_get_link_sband(sdata, link_id); + sband = ieee80211_get_link_sband(link); if (!sband) return -EINVAL; @@ -1616,7 +1629,7 @@ static int sta_link_apply_parameters(struct ieee80211_local *local, if (params->supported_rates && params->supported_rates_len) { - ieee80211_parse_bitrates(&sdata->vif.link_conf[link_id]->chandef, + ieee80211_parse_bitrates(&link->conf->chandef, sband, params->supported_rates, params->supported_rates_len, &link_sta->pub->supp_rates[sband->band]); @@ -1667,9 +1680,14 @@ static int sta_apply_parameters(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata = sta->sdata; u32 link_id = params->link_sta_params.link_id < 0 ? 0 : params->link_sta_params.link_id; + struct ieee80211_link_data *link; u32 mask, set; - sband = ieee80211_get_link_sband(sdata, link_id); + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + return -ENOLINK; + + sband = ieee80211_get_link_sband(link); if (!sband) return -EINVAL; @@ -1987,7 +2005,14 @@ static int ieee80211_change_station(struct wiphy *wiphy, } } - err = sta_apply_parameters(local, sta, params); + /* we use sta_info_get_bss() so this might be different */ + if (sdata != sta->sdata) { + mutex_lock_nested(&sta->sdata->wdev.mtx, 1); + err = sta_apply_parameters(local, sta, params); + mutex_unlock(&sta->sdata->wdev.mtx); + } else { + err = sta_apply_parameters(local, sta, params); + } if (err) goto out_err; @@ -2374,7 +2399,8 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy, if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { conf->ht_opmode = nconf->ht_opmode; sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_HT); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_HT); } if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) conf->dot11MeshHWMPactivePathToRootTimeout = @@ -2426,7 +2452,7 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, sdata->deflink.needed_rx_chains = sdata->local->rx_chains; mutex_lock(&sdata->local->mtx); - err = ieee80211_link_use_channel(sdata->link[0], &setup->chandef, + err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, IEEE80211_CHANCTX_SHARED); mutex_unlock(&sdata->local->mtx); if (err) @@ -2441,7 +2467,7 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) ieee80211_stop_mesh(sdata); mutex_lock(&sdata->local->mtx); - ieee80211_link_release_channel(sdata->link[0]); + ieee80211_link_release_channel(&sdata->deflink); kfree(sdata->u.mesh.ie); mutex_unlock(&sdata->local->mtx); @@ -2529,7 +2555,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, changed |= BSS_CHANGED_P2P_PS; } - ieee80211_link_info_change_notify(sdata, 0, changed); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); return 0; } @@ -2570,7 +2596,8 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy, return -EINVAL; } - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_QOS); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_QOS); return 0; } @@ -2719,7 +2746,8 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(int) * NUM_NL80211_BANDS); - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_MCAST_RATE); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_MCAST_RATE); return 0; } @@ -2934,7 +2962,7 @@ static int ieee80211_testmode_dump(struct wiphy *wiphy, #endif int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, - unsigned int link_id, + struct ieee80211_link_data *link, enum ieee80211_smps_mode smps_mode) { const u8 *ap; @@ -2948,8 +2976,8 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) return -EINVAL; - old_req = sdata->link[link_id]->u.mgd.req_smps; - sdata->link[link_id]->u.mgd.req_smps = smps_mode; + old_req = link->u.mgd.req_smps; + link->u.mgd.req_smps = smps_mode; if (old_req == smps_mode && smps_mode != IEEE80211_SMPS_AUTOMATIC) @@ -2961,10 +2989,10 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, * the new value until we associate. */ if (!sdata->u.mgd.associated || - sdata->vif.link_conf[link_id]->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) + link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return 0; - ap = sdata->link[link_id]->u.mgd.bssid; + ap = link->u.mgd.bssid; rcu_read_lock(); list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { @@ -2988,7 +3016,7 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, err = ieee80211_send_smps_action(sdata, smps_mode, ap, ap); if (err) - sdata->link[link_id]->u.mgd.req_smps = old_req; + link->u.mgd.req_smps = old_req; else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) ieee80211_teardown_tdls_peers(sdata); @@ -3018,10 +3046,14 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, /* no change, but if automatic follow powersave */ sdata_lock(sdata); for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { - if (!sdata->link[link_id]) + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + + if (!link) continue; - __ieee80211_request_smps_mgd(sdata, link_id, - sdata->link[link_id]->u.mgd.req_smps); + __ieee80211_request_smps_mgd(sdata, link, + link->u.mgd.req_smps); } sdata_unlock(sdata); @@ -3060,7 +3092,8 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, /* tell the driver upon association, unless already associated */ if (sdata->u.mgd.associated && sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_CQM); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_CQM); return 0; } @@ -3085,7 +3118,8 @@ static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, /* tell the driver upon association, unless already associated */ if (sdata->u.mgd.associated && sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_CQM); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_CQM); return 0; } @@ -3177,7 +3211,7 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy, sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; sdata->deflink.needed_rx_chains = local->rx_chains; - err = ieee80211_link_use_channel(sdata->link[0], chandef, + err = ieee80211_link_use_channel(&sdata->deflink, chandef, IEEE80211_CHANCTX_SHARED); if (err) goto out_unlock; @@ -3206,7 +3240,7 @@ static void ieee80211_end_cac(struct wiphy *wiphy, cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); if (sdata->wdev.cac_started) { - ieee80211_link_release_channel(sdata->link[0]); + ieee80211_link_release_channel(&sdata->deflink); sdata->wdev.cac_started = false; } } @@ -3353,7 +3387,7 @@ static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, if (!sdata->deflink.u.ap.next_beacon) return -EINVAL; - err = ieee80211_assign_beacon(sdata, + err = ieee80211_assign_beacon(sdata, &sdata->deflink, sdata->deflink.u.ap.next_beacon, NULL, NULL); ieee80211_free_next_beacon(&sdata->deflink); @@ -3410,7 +3444,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) if (sdata->deflink.reserved_ready) return 0; - return ieee80211_link_use_reserved_context(sdata->link[0]); + return ieee80211_link_use_reserved_context(&sdata->deflink); } if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, @@ -3423,7 +3457,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) if (err) return err; - ieee80211_link_info_change_notify(sdata, 0, changed); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); if (sdata->deflink.csa_block_tx) { ieee80211_wake_vif_queues(local, sdata, @@ -3522,7 +3556,9 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, csa.n_counter_offsets_presp = params->n_counter_offsets_presp; csa.count = params->count; - err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL); + err = ieee80211_assign_beacon(sdata, &sdata->deflink, + ¶ms->beacon_csa, &csa, + NULL); if (err < 0) { ieee80211_free_next_beacon(&sdata->deflink); return err; @@ -3675,7 +3711,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, if (err) goto out; - err = ieee80211_link_reserve_chanctx(sdata->link[0], ¶ms->chandef, + err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, chanctx->mode, params->radar_required); if (err) @@ -3684,7 +3720,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, /* if reservation is invalid then this will fail */ err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); if (err) { - ieee80211_link_unreserve_chanctx(sdata->link[0]); + ieee80211_link_unreserve_chanctx(&sdata->deflink); goto out; } @@ -3694,7 +3730,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, err = ieee80211_set_csa_beacon(sdata, params, &changed); if (err) { - ieee80211_link_unreserve_chanctx(sdata->link[0]); + ieee80211_link_unreserve_chanctx(&sdata->deflink); goto out; } @@ -3711,7 +3747,8 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, params->count, params->block_tx); if (changed) { - ieee80211_link_info_change_notify(sdata, 0, changed); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + changed); drv_channel_switch_beacon(sdata, ¶ms->chandef); } else { /* if the beacon didn't change, we can finalize immediately */ @@ -3950,12 +3987,19 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_link_data *link; int ret = -ENODATA; rcu_read_lock(); - chanctx_conf = rcu_dereference(sdata->vif.link_conf[link_id]->chanctx_conf); + link = rcu_dereference(sdata->link[link_id]); + if (!link) { + ret = -ENOLINK; + goto out; + } + + chanctx_conf = rcu_dereference(link->conf->chanctx_conf); if (chanctx_conf) { - *chandef = sdata->vif.link_conf[link_id]->chandef; + *chandef = link->conf->chandef; ret = 0; } else if (local->open_count > 0 && local->open_count == local->monitors && @@ -3966,6 +4010,7 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy, *chandef = local->_oper_chandef; ret = 0; } +out: rcu_read_unlock(); return ret; @@ -4009,13 +4054,15 @@ static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, struct cfg80211_chan_def *chandef) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_link_data *link; int ret; u32 changed = 0; - ret = ieee80211_link_change_bandwidth(sdata->link[link_id], chandef, - &changed); + link = sdata_dereference(sdata->link[link_id], sdata); + + ret = ieee80211_link_change_bandwidth(link, chandef, &changed); if (ret == 0) - ieee80211_link_info_change_notify(sdata, link_id, changed); + ieee80211_link_info_change_notify(sdata, link, changed); return ret; } @@ -4358,7 +4405,7 @@ ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, if (!sdata->deflink.u.ap.next_beacon) return -EINVAL; - ret = ieee80211_assign_beacon(sdata, + ret = ieee80211_assign_beacon(sdata, &sdata->deflink, sdata->deflink.u.ap.next_beacon, NULL, NULL); ieee80211_free_next_beacon(&sdata->deflink); @@ -4401,7 +4448,8 @@ ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, params->counter_offset_presp; color_change.count = params->count; - err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change, + err = ieee80211_assign_beacon(sdata, &sdata->deflink, + ¶ms->beacon_color_change, NULL, &color_change); if (err < 0) { ieee80211_free_next_beacon(&sdata->deflink); @@ -4424,7 +4472,7 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.he_bss_color.enabled = enable; changed |= BSS_CHANGED_HE_BSS_COLOR; - ieee80211_link_info_change_notify(sdata, 0, changed); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { struct ieee80211_sub_if_data *child; @@ -4434,7 +4482,8 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { child->vif.bss_conf.he_bss_color.color = color; child->vif.bss_conf.he_bss_color.enabled = enable; - ieee80211_link_info_change_notify(child, 0, + ieee80211_link_info_change_notify(child, + &child->deflink, BSS_CHANGED_HE_BSS_COLOR); } } |