diff options
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r-- | net/mac80211/mlme.c | 508 |
1 files changed, 313 insertions, 195 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 5107248af7fb..ac1374a8c30a 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -30,11 +30,13 @@ #include "rate.h" #include "led.h" -#define IEEE80211_AUTH_TIMEOUT (HZ / 5) -#define IEEE80211_AUTH_MAX_TRIES 3 -#define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5) -#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) -#define IEEE80211_ASSOC_MAX_TRIES 3 +#define IEEE80211_AUTH_TIMEOUT (HZ / 5) +#define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10) +#define IEEE80211_AUTH_MAX_TRIES 3 +#define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5) +#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) +#define IEEE80211_ASSOC_TIMEOUT_SHORT (HZ / 10) +#define IEEE80211_ASSOC_MAX_TRIES 3 static int max_nullfunc_tries = 2; module_param(max_nullfunc_tries, int, 0644); @@ -199,11 +201,11 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata, case NL80211_CHAN_WIDTH_40: if (sdata->vif.bss_conf.chandef.chan->center_freq > sdata->vif.bss_conf.chandef.center_freq1 && - chan->flags & IEEE80211_CHAN_NO_HT40PLUS) + chan->flags & IEEE80211_CHAN_NO_HT40MINUS) disable_40 = true; if (sdata->vif.bss_conf.chandef.chan->center_freq < sdata->vif.bss_conf.chandef.center_freq1 && - chan->flags & IEEE80211_CHAN_NO_HT40MINUS) + chan->flags & IEEE80211_CHAN_NO_HT40PLUS) disable_40 = true; break; default: @@ -341,11 +343,13 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_supported_band *sband) + struct ieee80211_supported_band *sband, + struct ieee80211_vht_cap *ap_vht_cap) { u8 *pos; u32 cap; struct ieee80211_sta_vht_cap vht_cap; + int i; BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); @@ -364,6 +368,42 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; } + /* + * Some APs apparently get confused if our capabilities are better + * than theirs, so restrict what we advertise in the assoc request. + */ + if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) + cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; + + if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_TXSTBC))) + cap &= ~(IEEE80211_VHT_CAP_RXSTBC_1 | + IEEE80211_VHT_CAP_RXSTBC_3 | + IEEE80211_VHT_CAP_RXSTBC_4); + + for (i = 0; i < 8; i++) { + int shift = i * 2; + u16 mask = IEEE80211_VHT_MCS_NOT_SUPPORTED << shift; + u16 ap_mcs, our_mcs; + + ap_mcs = (le16_to_cpu(ap_vht_cap->supp_mcs.tx_mcs_map) & + mask) >> shift; + our_mcs = (le16_to_cpu(vht_cap.vht_mcs.rx_mcs_map) & + mask) >> shift; + + switch (ap_mcs) { + default: + if (our_mcs <= ap_mcs) + break; + /* fall through */ + case IEEE80211_VHT_MCS_NOT_SUPPORTED: + vht_cap.vht_mcs.rx_mcs_map &= cpu_to_le16(~mask); + vht_cap.vht_mcs.rx_mcs_map |= + cpu_to_le16(ap_mcs << shift); + } + } + /* reserve and fill IE */ pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); @@ -562,7 +602,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) sband, chan, sdata->smps_mode); if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) - ieee80211_add_vht_ie(sdata, skb, sband); + ieee80211_add_vht_ie(sdata, skb, sband, + &assoc_data->ap_vht_cap); /* if present, add any custom non-vendor IEs that go after HT */ if (assoc_data->ie_len && assoc_data->ie) { @@ -605,6 +646,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) drv_mgd_prepare_tx(local, sdata); IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; ieee80211_tx_skb(sdata, skb); } @@ -641,7 +685,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, if (powersave) nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); - IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | + IEEE80211_TX_INTFL_OFFCHAN_TX_OK; if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL | IEEE80211_STA_CONNECTION_POLL)) IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; @@ -907,39 +952,6 @@ static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, return 0; } -void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif) -{ - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_local *local = sdata->local; - struct ieee80211_conf *conf = &local->hw.conf; - - WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || - !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) || - (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)); - - local->disable_dynamic_ps = false; - conf->dynamic_ps_timeout = local->dynamic_ps_user_timeout; -} -EXPORT_SYMBOL(ieee80211_enable_dyn_ps); - -void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif) -{ - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_local *local = sdata->local; - struct ieee80211_conf *conf = &local->hw.conf; - - WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || - !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) || - (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)); - - local->disable_dynamic_ps = true; - conf->dynamic_ps_timeout = 0; - del_timer_sync(&local->dynamic_ps_timer); - ieee80211_queue_work(&local->hw, - &local->dynamic_ps_enable_work); -} -EXPORT_SYMBOL(ieee80211_disable_dyn_ps); - /* powersave */ static void ieee80211_enable_ps(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) @@ -1042,7 +1054,6 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) } if (count == 1 && ieee80211_powersave_allowed(found)) { - struct ieee80211_conf *conf = &local->hw.conf; s32 beaconint_us; if (latency < 0) @@ -1066,10 +1077,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) else timeout = 100; } - local->dynamic_ps_user_timeout = timeout; - if (!local->disable_dynamic_ps) - conf->dynamic_ps_timeout = - local->dynamic_ps_user_timeout; + local->hw.conf.dynamic_ps_timeout = timeout; if (beaconint_us > latency) { local->ps_sdata = NULL; @@ -1139,8 +1147,7 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) if (local->hw.conf.flags & IEEE80211_CONF_PS) return; - if (!local->disable_dynamic_ps && - local->hw.conf.dynamic_ps_timeout > 0) { + if (local->hw.conf.dynamic_ps_timeout > 0) { /* don't enter PS if TX frames are pending */ if (drv_tx_frames_pending(local)) { mod_timer(&local->dynamic_ps_timer, jiffies + @@ -1205,6 +1212,19 @@ void ieee80211_dynamic_ps_timer(unsigned long data) ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); } +void ieee80211_dfs_cac_timer_work(struct work_struct *work) +{ + struct delayed_work *delayed_work = + container_of(work, struct delayed_work, work); + struct ieee80211_sub_if_data *sdata = + container_of(delayed_work, struct ieee80211_sub_if_data, + dfs_cac_timer_work); + + ieee80211_vif_release_channel(sdata); + + cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_FINISHED, GFP_KERNEL); +} + /* MLME */ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, @@ -1406,7 +1426,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_led_assoc(local, 1); - if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { + if (sdata->u.mgd.assoc_data->have_beacon) { /* * If the AP is buggy we may get here with no DTIM period * known, so assume it's 1 which is the only safe assumption @@ -1414,6 +1434,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, * probably just won't work at all. */ bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1; + bss_info_changed |= BSS_CHANGED_DTIM_PERIOD; } else { bss_conf->dtim_period = 0; } @@ -1426,10 +1447,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_info_changed |= BSS_CHANGED_CQM; /* Enable ARP filtering */ - if (bss_conf->arp_filter_enabled != sdata->arp_filter_state) { - bss_conf->arp_filter_enabled = sdata->arp_filter_state; + if (bss_conf->arp_addr_cnt) bss_info_changed |= BSS_CHANGED_ARP_FILTER; - } ieee80211_bss_info_change_notify(sdata, bss_info_changed); @@ -1450,7 +1469,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - struct sta_info *sta; u32 changed = 0; ASSERT_MGD_MTX(ifmgd); @@ -1482,14 +1500,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, netif_tx_stop_all_queues(sdata->dev); netif_carrier_off(sdata->dev); - mutex_lock(&local->sta_mtx); - sta = sta_info_get(sdata, ifmgd->bssid); - if (sta) { - set_sta_flag(sta, WLAN_STA_BLOCK_BA); - ieee80211_sta_tear_down_BA_sessions(sta, false); - } - mutex_unlock(&local->sta_mtx); - /* * if we want to get out of ps before disassoc (why?) we have * to do it before sending disassoc, as otherwise the null-packet @@ -1521,7 +1531,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, memset(ifmgd->bssid, 0, ETH_ALEN); /* remove AP and TDLS peers */ - sta_info_flush(local, sdata); + sta_info_flush_defer(sdata); /* finally reset all BSS / config parameters */ changed |= ieee80211_reset_erp_info(sdata); @@ -1543,10 +1553,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, cancel_work_sync(&local->dynamic_ps_enable_work); /* Disable ARP filtering */ - if (sdata->vif.bss_conf.arp_filter_enabled) { - sdata->vif.bss_conf.arp_filter_enabled = false; + if (sdata->vif.bss_conf.arp_addr_cnt) changed |= BSS_CHANGED_ARP_FILTER; - } sdata->vif.bss_conf.qos = false; changed |= BSS_CHANGED_QOS; @@ -1629,17 +1637,18 @@ void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, if (!ieee80211_is_data(hdr->frame_control)) return; - if (ack) - ieee80211_sta_reset_conn_monitor(sdata); - if (ieee80211_is_nullfunc(hdr->frame_control) && sdata->u.mgd.probe_send_count > 0) { if (ack) - sdata->u.mgd.probe_send_count = 0; + ieee80211_sta_reset_conn_monitor(sdata); else sdata->u.mgd.nullfunc_failed = true; ieee80211_queue_work(&sdata->local->hw, &sdata->work); + return; } + + if (ack) + ieee80211_sta_reset_conn_monitor(sdata); } static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) @@ -1680,7 +1689,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) ssid_len = ssid[1]; ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid_len, NULL, - 0, (u32) -1, true, false, + 0, (u32) -1, true, 0, ifmgd->associated->channel, false); rcu_read_unlock(); } @@ -1714,7 +1723,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, if (beacon) mlme_dbg_ratelimited(sdata, - "detected beacon loss from AP - sending probe request\n"); + "detected beacon loss from AP - probing\n"); ieee80211_cqm_rssi_notify(&sdata->vif, NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL); @@ -1795,11 +1804,9 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, } EXPORT_SYMBOL(ieee80211_ap_probereq_get); -static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata, - bool transmit_frame) +static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; mutex_lock(&ifmgd->mtx); @@ -1810,8 +1817,10 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata, ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, - transmit_frame, frame_buf); + true, frame_buf); ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; + ieee80211_wake_queues_by_reason(&sdata->local->hw, + IEEE80211_QUEUE_STOP_REASON_CSA); mutex_unlock(&ifmgd->mtx); /* @@ -1819,10 +1828,6 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata, * but that's not a problem. */ cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); - - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); } static void ieee80211_beacon_connection_loss_work(struct work_struct *work) @@ -1841,10 +1846,10 @@ static void ieee80211_beacon_connection_loss_work(struct work_struct *work) rcu_read_unlock(); } - if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) { + if (ifmgd->connection_loss) { sdata_info(sdata, "Connection to AP %pM lost\n", ifmgd->bssid); - __ieee80211_disconnect(sdata, false); + __ieee80211_disconnect(sdata); } else { ieee80211_mgd_probe_ap(sdata, true); } @@ -1856,9 +1861,7 @@ static void ieee80211_csa_connection_drop_work(struct work_struct *work) container_of(work, struct ieee80211_sub_if_data, u.mgd.csa_connection_drop_work); - ieee80211_wake_queues_by_reason(&sdata->local->hw, - IEEE80211_QUEUE_STOP_REASON_CSA); - __ieee80211_disconnect(sdata, true); + __ieee80211_disconnect(sdata); } void ieee80211_beacon_loss(struct ieee80211_vif *vif) @@ -1869,6 +1872,7 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif) trace_api_beacon_loss(sdata); WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR); + sdata->u.mgd.connection_loss = false; ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } EXPORT_SYMBOL(ieee80211_beacon_loss); @@ -1880,7 +1884,7 @@ void ieee80211_connection_loss(struct ieee80211_vif *vif) trace_api_connection_loss(sdata); - WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR)); + sdata->u.mgd.connection_loss = true; ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } EXPORT_SYMBOL(ieee80211_connection_loss); @@ -1902,7 +1906,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, ieee80211_vif_release_channel(sdata); } - cfg80211_put_bss(auth_data->bss); + cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); kfree(auth_data); sdata->u.mgd.auth_data = NULL; } @@ -1910,9 +1914,11 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len) { + struct ieee80211_local *local = sdata->local; struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; u8 *pos; struct ieee802_11_elems elems; + u32 tx_flags = 0; pos = mgmt->u.auth.variable; ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); @@ -1920,11 +1926,14 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, return; auth_data->expected_transaction = 4; drv_mgd_prepare_tx(sdata->local, sdata); + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) + tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0, elems.challenge - 2, elems.challenge_len + 2, auth_data->bss->bssid, auth_data->bss->bssid, auth_data->key, auth_data->key_len, - auth_data->key_idx); + auth_data->key_idx, tx_flags); } static enum rx_mgmt_action __must_check @@ -1991,6 +2000,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, sdata_info(sdata, "authenticated\n"); ifmgd->auth_data->done = true; ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; + ifmgd->auth_data->timeout_started = true; run_again(ifmgd, ifmgd->auth_data->timeout); if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && @@ -2049,10 +2059,6 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, ieee80211_set_disassoc(sdata, 0, 0, false, NULL); - mutex_lock(&sdata->local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&sdata->local->mtx); - return RX_MGMT_CFG80211_DEAUTH; } @@ -2080,10 +2086,6 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_set_disassoc(sdata, 0, 0, false, NULL); - mutex_lock(&sdata->local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&sdata->local->mtx); - return RX_MGMT_CFG80211_DISASSOC; } @@ -2226,9 +2228,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (elems.wmm_param) set_sta_flag(sta, WLAN_STA_WME); - err = sta_info_move_state(sta, IEEE80211_STA_AUTH); - if (!err) - err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); + err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); if (err) { @@ -2335,6 +2335,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", mgmt->sa, tu, ms); assoc_data->timeout = jiffies + msecs_to_jiffies(ms); + assoc_data->timeout_started = true; if (ms > IEEE80211_ASSOC_TIMEOUT) run_again(ifmgd, assoc_data->timeout); return RX_MGMT_NONE; @@ -2350,7 +2351,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) { /* oops -- internal error -- send timeout for now */ ieee80211_destroy_assoc_data(sdata, false); - cfg80211_put_bss(*bss); + cfg80211_put_bss(sdata->local->hw.wiphy, *bss); return RX_MGMT_CFG80211_ASSOC_TIMEOUT; } sdata_info(sdata, "associated\n"); @@ -2369,8 +2370,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status, - struct ieee802_11_elems *elems, - bool beacon) + struct ieee802_11_elems *elems) { struct ieee80211_local *local = sdata->local; int freq; @@ -2404,7 +2404,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, return; bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems, - channel, beacon); + channel); if (bss) ieee80211_rx_bss_put(local, bss); @@ -2447,7 +2447,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, &elems); - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); if (ifmgd->associated && ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid)) @@ -2459,6 +2459,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, sdata_info(sdata, "direct probe responded\n"); ifmgd->auth_data->tries = 0; ifmgd->auth_data->timeout = jiffies; + ifmgd->auth_data->timeout_started = true; run_again(ifmgd, ifmgd->auth_data->timeout); } } @@ -2523,17 +2524,28 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, chan = chanctx_conf->def.chan; rcu_read_unlock(); - if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon && + if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) { ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems); - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, - false); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); ifmgd->assoc_data->have_beacon = true; - ifmgd->assoc_data->sent_assoc = false; + ifmgd->assoc_data->need_beacon = false; + if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) { + sdata->vif.bss_conf.sync_tsf = + le64_to_cpu(mgmt->u.beacon.timestamp); + sdata->vif.bss_conf.sync_device_ts = + rx_status->device_timestamp; + if (elems.tim) + sdata->vif.bss_conf.sync_dtim_count = + elems.tim->dtim_count; + else + sdata->vif.bss_conf.sync_dtim_count = 0; + } /* continue assoc process */ ifmgd->assoc_data->timeout = jiffies; + ifmgd->assoc_data->timeout_started = true; run_again(ifmgd, ifmgd->assoc_data->timeout); return; } @@ -2571,12 +2583,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (sig > ifmgd->rssi_max_thold && (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) { ifmgd->last_ave_beacon_signal = sig; - drv_rssi_callback(local, RSSI_EVENT_HIGH); + drv_rssi_callback(local, sdata, RSSI_EVENT_HIGH); } else if (sig < ifmgd->rssi_min_thold && (last_sig >= ifmgd->rssi_max_thold || last_sig == 0)) { ifmgd->last_ave_beacon_signal = sig; - drv_rssi_callback(local, RSSI_EVENT_LOW); + drv_rssi_callback(local, sdata, RSSI_EVENT_LOW); } } @@ -2606,7 +2618,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) { mlme_dbg_ratelimited(sdata, - "cancelling probereq poll due to a received beacon\n"); + "cancelling AP probe due to a received beacon\n"); mutex_lock(&local->mtx); ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL; ieee80211_run_deferred_scan(local); @@ -2682,13 +2694,38 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, ifmgd->beacon_crc = ncrc; ifmgd->beacon_crc_valid = true; - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, - true); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); if (ieee80211_sta_wmm_params(local, sdata, elems.wmm_param, elems.wmm_param_len)) changed |= BSS_CHANGED_QOS; + /* + * If we haven't had a beacon before, tell the driver about the + * DTIM period (and beacon timing if desired) now. + */ + if (!bss_conf->dtim_period) { + /* a few bogus AP send dtim_period = 0 or no TIM IE */ + if (elems.tim) + bss_conf->dtim_period = elems.tim->dtim_period ?: 1; + else + bss_conf->dtim_period = 1; + + if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) { + sdata->vif.bss_conf.sync_tsf = + le64_to_cpu(mgmt->u.beacon.timestamp); + sdata->vif.bss_conf.sync_device_ts = + rx_status->device_timestamp; + if (elems.tim) + sdata->vif.bss_conf.sync_dtim_count = + elems.tim->dtim_count; + else + sdata->vif.bss_conf.sync_dtim_count = 0; + } + + changed |= BSS_CHANGED_DTIM_PERIOD; + } + if (elems.erp_info && elems.erp_info_len >= 1) { erp_valid = true; erp_value = elems.erp_info[0]; @@ -2804,14 +2841,13 @@ static void ieee80211_sta_timer(unsigned long data) } static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, - u8 *bssid, u8 reason) + u8 *bssid, u8 reason, bool tx) { - struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, - false, frame_buf); + tx, frame_buf); mutex_unlock(&ifmgd->mtx); /* @@ -2820,10 +2856,6 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, */ cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); - mutex_lock(&ifmgd->mtx); } @@ -2832,12 +2864,17 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; + u32 tx_flags = 0; lockdep_assert_held(&ifmgd->mtx); if (WARN_ON_ONCE(!auth_data)) return -EINVAL; + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) + tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; + auth_data->tries++; if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { @@ -2874,7 +2911,8 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, auth_data->data, auth_data->data_len, auth_data->bss->bssid, - auth_data->bss->bssid, NULL, 0, 0); + auth_data->bss->bssid, NULL, 0, 0, + tx_flags); } else { const u8 *ssidie; @@ -2893,13 +2931,18 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) * will not answer to direct packet in unassociated state. */ ieee80211_send_probe_req(sdata, NULL, ssidie + 2, ssidie[1], - NULL, 0, (u32) -1, true, false, + NULL, 0, (u32) -1, true, tx_flags, auth_data->bss->channel, false); rcu_read_unlock(); } - auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; - run_again(ifmgd, auth_data->timeout); + if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) { + auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; + ifmgd->auth_data->timeout_started = true; + run_again(ifmgd, auth_data->timeout); + } else { + auth_data->timeout_started = false; + } return 0; } @@ -2930,12 +2973,29 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) IEEE80211_ASSOC_MAX_TRIES); ieee80211_send_assoc(sdata); - assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; - run_again(&sdata->u.mgd, assoc_data->timeout); + if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) { + assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; + assoc_data->timeout_started = true; + run_again(&sdata->u.mgd, assoc_data->timeout); + } else { + assoc_data->timeout_started = false; + } return 0; } +void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, + __le16 fc, bool acked) +{ + struct ieee80211_local *local = sdata->local; + + sdata->u.mgd.status_fc = fc; + sdata->u.mgd.status_acked = acked; + sdata->u.mgd.status_received = true; + + ieee80211_queue_work(&local->hw, &sdata->work); +} + void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; @@ -2943,7 +3003,36 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) mutex_lock(&ifmgd->mtx); - if (ifmgd->auth_data && + if (ifmgd->status_received) { + __le16 fc = ifmgd->status_fc; + bool status_acked = ifmgd->status_acked; + + ifmgd->status_received = false; + if (ifmgd->auth_data && + (ieee80211_is_probe_req(fc) || ieee80211_is_auth(fc))) { + if (status_acked) { + ifmgd->auth_data->timeout = + jiffies + IEEE80211_AUTH_TIMEOUT_SHORT; + run_again(ifmgd, ifmgd->auth_data->timeout); + } else { + ifmgd->auth_data->timeout = jiffies - 1; + } + ifmgd->auth_data->timeout_started = true; + } else if (ifmgd->assoc_data && + (ieee80211_is_assoc_req(fc) || + ieee80211_is_reassoc_req(fc))) { + if (status_acked) { + ifmgd->assoc_data->timeout = + jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT; + run_again(ifmgd, ifmgd->assoc_data->timeout); + } else { + ifmgd->assoc_data->timeout = jiffies - 1; + } + ifmgd->assoc_data->timeout_started = true; + } + } + + if (ifmgd->auth_data && ifmgd->auth_data->timeout_started && time_after(jiffies, ifmgd->auth_data->timeout)) { if (ifmgd->auth_data->done) { /* @@ -2962,12 +3051,13 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) cfg80211_send_auth_timeout(sdata->dev, bssid); mutex_lock(&ifmgd->mtx); } - } else if (ifmgd->auth_data) + } else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started) run_again(ifmgd, ifmgd->auth_data->timeout); - if (ifmgd->assoc_data && + if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started && time_after(jiffies, ifmgd->assoc_data->timeout)) { - if (!ifmgd->assoc_data->have_beacon || + if ((ifmgd->assoc_data->need_beacon && + !ifmgd->assoc_data->have_beacon) || ieee80211_do_assoc(sdata)) { u8 bssid[ETH_ALEN]; @@ -2979,7 +3069,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) cfg80211_send_assoc_timeout(sdata->dev, bssid); mutex_lock(&ifmgd->mtx); } - } else if (ifmgd->assoc_data) + } else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started) run_again(ifmgd, ifmgd->assoc_data->timeout); if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL | @@ -3010,7 +3100,8 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) "No ack for nullfunc frame to AP %pM, disconnecting.\n", bssid); ieee80211_sta_connection_lost(sdata, bssid, - WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + false); } } else if (time_is_after_jiffies(ifmgd->probe_timeout)) run_again(ifmgd, ifmgd->probe_timeout); @@ -3019,7 +3110,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", bssid, probe_wait_ms); ieee80211_sta_connection_lost(sdata, bssid, - WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); } else if (ifmgd->probe_send_count < max_tries) { mlme_dbg(sdata, "No probe response from AP %pM after %dms, try %d/%i\n", @@ -3038,15 +3129,11 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) bssid, probe_wait_ms); ieee80211_sta_connection_lost(sdata, bssid, - WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); } } mutex_unlock(&ifmgd->mtx); - - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); } static void ieee80211_sta_bcn_mon_timer(unsigned long data) @@ -3058,6 +3145,7 @@ static void ieee80211_sta_bcn_mon_timer(unsigned long data) if (local->quiescing) return; + sdata->u.mgd.connection_loss = false; ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_connection_loss_work); } @@ -3133,23 +3221,23 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - if (!ifmgd->associated) + mutex_lock(&ifmgd->mtx); + if (!ifmgd->associated) { + mutex_unlock(&ifmgd->mtx); return; + } if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; - mutex_lock(&ifmgd->mtx); - if (ifmgd->associated) { - mlme_dbg(sdata, - "driver requested disconnect after resume\n"); - ieee80211_sta_connection_lost(sdata, - ifmgd->associated->bssid, - WLAN_REASON_UNSPECIFIED); - mutex_unlock(&ifmgd->mtx); - return; - } + mlme_dbg(sdata, "driver requested disconnect after resume\n"); + ieee80211_sta_connection_lost(sdata, + ifmgd->associated->bssid, + WLAN_REASON_UNSPECIFIED, + true); mutex_unlock(&ifmgd->mtx); + return; } + mutex_unlock(&ifmgd->mtx); if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running)) add_timer(&ifmgd->timer); @@ -3562,15 +3650,12 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, return -ENOMEM; } - mutex_lock(&local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&local->mtx); - if (new_sta) { u32 rates = 0, basic_rates = 0; bool have_higher_than_11mbit; int min_rate = INT_MAX, min_rate_index = -1; struct ieee80211_supported_band *sband; + const struct cfg80211_bss_ies *ies; sband = local->hw.wiphy->bands[cbss->channel->band]; @@ -3614,8 +3699,34 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, /* set timing information */ sdata->vif.bss_conf.beacon_int = cbss->beacon_interval; - sdata->vif.bss_conf.sync_tsf = cbss->tsf; - sdata->vif.bss_conf.sync_device_ts = bss->device_ts; + rcu_read_lock(); + ies = rcu_dereference(cbss->beacon_ies); + if (ies) { + const u8 *tim_ie; + + sdata->vif.bss_conf.sync_tsf = ies->tsf; + sdata->vif.bss_conf.sync_device_ts = + bss->device_ts_beacon; + tim_ie = cfg80211_find_ie(WLAN_EID_TIM, + ies->data, ies->len); + if (tim_ie && tim_ie[1] >= 2) + sdata->vif.bss_conf.sync_dtim_count = tim_ie[2]; + else + sdata->vif.bss_conf.sync_dtim_count = 0; + } else if (!(local->hw.flags & + IEEE80211_HW_TIMING_BEACON_ONLY)) { + ies = rcu_dereference(cbss->proberesp_ies); + /* must be non-NULL since beacon IEs were NULL */ + sdata->vif.bss_conf.sync_tsf = ies->tsf; + sdata->vif.bss_conf.sync_device_ts = + bss->device_ts_presp; + sdata->vif.bss_conf.sync_dtim_count = 0; + } else { + sdata->vif.bss_conf.sync_tsf = 0; + sdata->vif.bss_conf.sync_device_ts = 0; + sdata->vif.bss_conf.sync_dtim_count = 0; + } + rcu_read_unlock(); /* tell driver about BSSID, basic rates and timing */ ieee80211_bss_info_change_notify(sdata, @@ -3735,7 +3846,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, } /* hold our own reference */ - cfg80211_ref_bss(auth_data->bss); + cfg80211_ref_bss(local->hw.wiphy, auth_data->bss); err = 0; goto out_unlock; @@ -3758,8 +3869,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_bss *bss = (void *)req->bss->priv; struct ieee80211_mgd_assoc_data *assoc_data; + const struct cfg80211_bss_ies *beacon_ies; struct ieee80211_supported_band *sband; - const u8 *ssidie, *ht_ie; + const u8 *ssidie, *ht_ie, *vht_ie; int i, err; assoc_data = kzalloc(sizeof(*assoc_data) + req->ie_len, GFP_KERNEL); @@ -3878,6 +3990,12 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ((struct ieee80211_ht_operation *)(ht_ie + 2))->ht_param; else ifmgd->flags |= IEEE80211_STA_DISABLE_HT; + vht_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_VHT_CAPABILITY); + if (vht_ie && vht_ie[1] >= sizeof(struct ieee80211_vht_cap)) + memcpy(&assoc_data->ap_vht_cap, vht_ie + 2, + sizeof(struct ieee80211_vht_cap)); + else + ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; rcu_read_unlock(); if (bss->wmm_used && bss->uapsd_supported && @@ -3917,40 +4035,48 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (err) goto err_clear; - if (sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { - const struct cfg80211_bss_ies *beacon_ies; + rcu_read_lock(); + beacon_ies = rcu_dereference(req->bss->beacon_ies); - rcu_read_lock(); - beacon_ies = rcu_dereference(req->bss->beacon_ies); - if (!beacon_ies) { - /* - * Wait up to one beacon interval ... - * should this be more if we miss one? - */ - sdata_info(sdata, "waiting for beacon from %pM\n", - ifmgd->bssid); - assoc_data->timeout = - TU_TO_EXP_TIME(req->bss->beacon_interval); - } else { - const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, - beacon_ies->data, - beacon_ies->len); - if (tim_ie && tim_ie[1] >= - sizeof(struct ieee80211_tim_ie)) { - const struct ieee80211_tim_ie *tim; - tim = (void *)(tim_ie + 2); - ifmgd->dtim_period = tim->dtim_period; - } - assoc_data->have_beacon = true; - assoc_data->sent_assoc = false; - assoc_data->timeout = jiffies; + if (sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC && + !beacon_ies) { + /* + * Wait up to one beacon interval ... + * should this be more if we miss one? + */ + sdata_info(sdata, "waiting for beacon from %pM\n", + ifmgd->bssid); + assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); + assoc_data->timeout_started = true; + assoc_data->need_beacon = true; + } else if (beacon_ies) { + const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, + beacon_ies->data, + beacon_ies->len); + u8 dtim_count = 0; + + if (tim_ie && tim_ie[1] >= sizeof(struct ieee80211_tim_ie)) { + const struct ieee80211_tim_ie *tim; + tim = (void *)(tim_ie + 2); + ifmgd->dtim_period = tim->dtim_period; + dtim_count = tim->dtim_count; } - rcu_read_unlock(); - } else { assoc_data->have_beacon = true; - assoc_data->sent_assoc = false; assoc_data->timeout = jiffies; + assoc_data->timeout_started = true; + + if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) { + sdata->vif.bss_conf.sync_tsf = beacon_ies->tsf; + sdata->vif.bss_conf.sync_device_ts = + bss->device_ts_beacon; + sdata->vif.bss_conf.sync_dtim_count = dtim_count; + } + } else { + assoc_data->timeout = jiffies; + assoc_data->timeout_started = true; } + rcu_read_unlock(); + run_again(ifmgd, assoc_data->timeout); if (bss->corrupt_data) { @@ -4017,10 +4143,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); out: - mutex_lock(&sdata->local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&sdata->local->mtx); - if (sent_frame) __cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); @@ -4061,10 +4183,6 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, __cfg80211_send_disassoc(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); - mutex_lock(&sdata->local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&sdata->local->mtx); - return 0; } |