diff options
Diffstat (limited to 'net/mac80211')
41 files changed, 3180 insertions, 1451 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 63af25458fda..b4ecf267a34b 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -248,7 +248,7 @@ config MAC80211_MHWMP_DEBUG Do not select this option. config MAC80211_MESH_SYNC_DEBUG - bool "Verbose mesh mesh synchronization debugging" + bool "Verbose mesh synchronization debugging" depends on MAC80211_DEBUG_MENU depends on MAC80211_MESH ---help--- diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index a7dd110faafa..4911202334d9 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -8,6 +8,7 @@ mac80211-y := \ wpa.o \ scan.o offchannel.o \ ht.o agg-tx.o agg-rx.o \ + vht.o \ ibss.o \ iface.o \ rate.o \ diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c index a04752e91023..537488cbf941 100644 --- a/net/mac80211/aes_cmac.c +++ b/net/mac80211/aes_cmac.c @@ -10,6 +10,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/crypto.h> +#include <linux/export.h> #include <linux/err.h> #include <crypto/aes.h> @@ -126,3 +127,20 @@ void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm) { crypto_free_cipher(tfm); } + +void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf, + u8 *k1, u8 *k2) +{ + u8 l[AES_BLOCK_SIZE] = {}; + struct ieee80211_key *key = + container_of(keyconf, struct ieee80211_key, conf); + + crypto_cipher_encrypt_one(key->u.aes_cmac.tfm, l, l); + + memcpy(k1, l, AES_BLOCK_SIZE); + gf_mulx(k1); + + memcpy(k2, k1, AES_BLOCK_SIZE); + gf_mulx(k2); +} +EXPORT_SYMBOL(ieee80211_aes_cmac_calculate_k1_k2); diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 186d9919b043..808338a1bce5 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -118,7 +118,7 @@ void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, return; } - for (i = 0; i < STA_TID_NUM; i++) + for (i = 0; i < IEEE80211_NUM_TIDS; i++) if (ba_rx_bitmap & BIT(i)) set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 3195a6307f50..eb9df22418f0 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -445,10 +445,10 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, trace_api_start_tx_ba_session(pubsta, tid); - if (WARN_ON(!local->ops->ampdu_action)) + if (WARN_ON_ONCE(!local->ops->ampdu_action)) return -EINVAL; - if ((tid >= STA_TID_NUM) || + if ((tid >= IEEE80211_NUM_TIDS) || !(local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION) || (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)) return -EINVAL; @@ -605,9 +605,9 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) trace_api_start_tx_ba_cb(sdata, ra, tid); - if (tid >= STA_TID_NUM) { + if (tid >= IEEE80211_NUM_TIDS) { ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); + tid, IEEE80211_NUM_TIDS); return; } @@ -687,7 +687,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) if (!local->ops->ampdu_action) return -EINVAL; - if (tid >= STA_TID_NUM) + if (tid >= IEEE80211_NUM_TIDS) return -EINVAL; spin_lock_bh(&sta->lock); @@ -722,9 +722,9 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) trace_api_stop_tx_ba_cb(sdata, ra, tid); - if (tid >= STA_TID_NUM) { + if (tid >= IEEE80211_NUM_TIDS) { ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); + tid, IEEE80211_NUM_TIDS); return; } diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 7371f676cf41..5c61677487cf 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -370,29 +370,64 @@ static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, return 0; } -static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx) -{ - if (!(rate->flags & RATE_INFO_FLAGS_MCS)) { - struct ieee80211_supported_band *sband; - sband = sta->local->hw.wiphy->bands[ - sta->local->oper_channel->band]; - rate->legacy = sband->bitrates[idx].bitrate; - } else - rate->mcs = idx; -} - void sta_set_rate_info_tx(struct sta_info *sta, const struct ieee80211_tx_rate *rate, struct rate_info *rinfo) { rinfo->flags = 0; - if (rate->flags & IEEE80211_TX_RC_MCS) + if (rate->flags & IEEE80211_TX_RC_MCS) { rinfo->flags |= RATE_INFO_FLAGS_MCS; + rinfo->mcs = rate->idx; + } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { + rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; + rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); + rinfo->nss = ieee80211_rate_get_vht_nss(rate); + } else { + struct ieee80211_supported_band *sband; + sband = sta->local->hw.wiphy->bands[ + ieee80211_get_sdata_band(sta->sdata)]; + rinfo->legacy = sband->bitrates[rate->idx].bitrate; + } if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) + rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; + if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) + rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; if (rate->flags & IEEE80211_TX_RC_SHORT_GI) rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; - rate_idx_to_bitrate(rinfo, sta, rate->idx); +} + +void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) +{ + rinfo->flags = 0; + + if (sta->last_rx_rate_flag & RX_FLAG_HT) { + rinfo->flags |= RATE_INFO_FLAGS_MCS; + rinfo->mcs = sta->last_rx_rate_idx; + } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { + rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; + rinfo->nss = sta->last_rx_rate_vht_nss; + rinfo->mcs = sta->last_rx_rate_idx; + } else { + struct ieee80211_supported_band *sband; + + sband = sta->local->hw.wiphy->bands[ + ieee80211_get_sdata_band(sta->sdata)]; + rinfo->legacy = + sband->bitrates[sta->last_rx_rate_idx].bitrate; + } + + if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) + rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) + rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; + if (sta->last_rx_rate_flag & RX_FLAG_80MHZ) + rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; + if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ) + rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; + if (sta->last_rx_rate_flag & RX_FLAG_160MHZ) + rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; } static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) @@ -441,15 +476,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) } sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); - - sinfo->rxrate.flags = 0; - if (sta->last_rx_rate_flag & RX_FLAG_HT) - sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS; - if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) - sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; - if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) - sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; - rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx); + sta_set_rate_info_rx(sta, &sinfo->rxrate); if (ieee80211_vif_is_mesh(&sdata->vif)) { #ifdef CONFIG_MAC80211_MESH @@ -532,6 +559,8 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, u64 *data) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *channel; struct sta_info *sta; struct ieee80211_local *local = sdata->local; struct station_info sinfo; @@ -607,19 +636,26 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, do_survey: i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; /* Get survey stats for current channel */ - q = 0; - while (true) { - survey.filled = 0; - if (drv_get_survey(local, q, &survey) != 0) { - survey.filled = 0; - break; - } + survey.filled = 0; - if (survey.channel && - (local->oper_channel->center_freq == - survey.channel->center_freq)) - break; - q++; + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (chanctx_conf) + channel = chanctx_conf->def.chan; + else + channel = NULL; + rcu_read_unlock(); + + if (channel) { + q = 0; + do { + survey.filled = 0; + if (drv_get_survey(local, q, &survey) != 0) { + survey.filled = 0; + break; + } + q++; + } while (channel != survey.channel); } if (survey.filled) @@ -724,47 +760,37 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, return ret; } -static int ieee80211_set_channel(struct wiphy *wiphy, - struct net_device *netdev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type) +static int ieee80211_set_monitor_channel(struct wiphy *wiphy, + struct cfg80211_chan_def *chandef) { struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_sub_if_data *sdata = NULL; - - if (netdev) - sdata = IEEE80211_DEV_TO_SUB_IF(netdev); - - switch (ieee80211_get_channel_mode(local, NULL)) { - case CHAN_MODE_HOPPING: - return -EBUSY; - case CHAN_MODE_FIXED: - if (local->oper_channel != chan || - (!sdata && local->_oper_channel_type != channel_type)) - return -EBUSY; - if (!sdata && local->_oper_channel_type == channel_type) - return 0; - break; - case CHAN_MODE_UNDEFINED: - break; - } + struct ieee80211_sub_if_data *sdata; + int ret = 0; - if (!ieee80211_set_channel_type(local, sdata, channel_type)) - return -EBUSY; + if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) + return 0; - local->oper_channel = chan; + mutex_lock(&local->iflist_mtx); + if (local->use_chanctx) { + sdata = rcu_dereference_protected( + local->monitor_sdata, + lockdep_is_held(&local->iflist_mtx)); + if (sdata) { + ieee80211_vif_release_channel(sdata); + ret = ieee80211_vif_use_channel(sdata, chandef, + IEEE80211_CHANCTX_EXCLUSIVE); + } + } else if (local->open_count == local->monitors) { + local->_oper_channel = chandef->chan; + local->_oper_channel_type = cfg80211_get_chandef_type(chandef); + ieee80211_hw_config(local, 0); + } - /* auto-detects changes */ - ieee80211_hw_config(local, 0); + if (ret == 0) + local->monitor_chandef = *chandef; + mutex_unlock(&local->iflist_mtx); - return 0; -} - -static int ieee80211_set_monitor_channel(struct wiphy *wiphy, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type) -{ - return ieee80211_set_channel(wiphy, NULL, chan, channel_type); + return ret; } static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, @@ -872,15 +898,20 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, u32 changed = BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON | - BSS_CHANGED_SSID; + BSS_CHANGED_SSID | + BSS_CHANGED_P2P_PS; int err; old = rtnl_dereference(sdata->u.ap.beacon); if (old) return -EALREADY; - err = ieee80211_set_channel(wiphy, dev, params->channel, - params->channel_type); + /* TODO: make hostapd tell us what it wants */ + sdata->smps_mode = IEEE80211_SMPS_OFF; + sdata->needed_rx_chains = sdata->local->rx_chains; + + err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, + IEEE80211_CHANCTX_SHARED); if (err) return err; @@ -907,11 +938,23 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, sdata->vif.bss_conf.hidden_ssid = (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); + sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow; + sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps; + err = ieee80211_assign_beacon(sdata, ¶ms->beacon); if (err < 0) return err; changed |= err; + err = drv_start_ap(sdata->local, sdata); + if (err) { + old = rtnl_dereference(sdata->u.ap.beacon); + if (old) + kfree_rcu(old, rcu_head); + RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); + return err; + } + ieee80211_bss_info_change_notify(sdata, changed); netif_carrier_on(dev); @@ -943,26 +986,40 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) { - struct ieee80211_sub_if_data *sdata, *vlan; - struct beacon_data *old; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *vlan; + struct ieee80211_local *local = sdata->local; + struct beacon_data *old_beacon; + struct probe_resp *old_probe_resp; - old = rtnl_dereference(sdata->u.ap.beacon); - if (!old) + old_beacon = rtnl_dereference(sdata->u.ap.beacon); + if (!old_beacon) return -ENOENT; + old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp); + /* turn off carrier for this interface and dependent VLANs */ list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) netif_carrier_off(vlan->dev); netif_carrier_off(dev); + /* remove beacon and probe response */ RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); + RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); + kfree_rcu(old_beacon, rcu_head); + if (old_probe_resp) + kfree_rcu(old_probe_resp, rcu_head); - kfree_rcu(old, rcu_head); - - sta_info_flush(sdata->local, sdata); + sta_info_flush(local, sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); + drv_stop_ap(sdata->local, sdata); + + /* free all potentially still buffered bcast frames */ + local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); + skb_queue_purge(&sdata->u.ap.ps.bc_buf); + + ieee80211_vif_release_channel(sdata); + return 0; } @@ -1019,9 +1076,10 @@ static int sta_apply_parameters(struct ieee80211_local *local, int i, j; struct ieee80211_supported_band *sband; struct ieee80211_sub_if_data *sdata = sta->sdata; + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); u32 mask, set; - sband = local->hw.wiphy->bands[local->oper_channel->band]; + sband = local->hw.wiphy->bands[band]; mask = params->sta_flags_mask; set = params->sta_flags_set; @@ -1136,7 +1194,7 @@ static int sta_apply_parameters(struct ieee80211_local *local, rates |= BIT(j); } } - sta->sta.supp_rates[local->oper_channel->band] = rates; + sta->sta.supp_rates[band] = rates; } if (params->ht_capa) @@ -1144,6 +1202,11 @@ static int sta_apply_parameters(struct ieee80211_local *local, params->ht_capa, &sta->sta.ht_cap); + if (params->vht_capa) + ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, + params->vht_capa, + &sta->sta.vht_cap); + if (ieee80211_vif_is_mesh(&sdata->vif)) { #ifdef CONFIG_MAC80211_MESH if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) @@ -1664,8 +1727,12 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, if (err) return err; - err = ieee80211_set_channel(wiphy, dev, setup->channel, - setup->channel_type); + /* can mesh use other SMPS modes? */ + sdata->smps_mode = IEEE80211_SMPS_OFF; + sdata->needed_rx_chains = sdata->local->rx_chains; + + err = ieee80211_vif_use_channel(sdata, &setup->chandef, + IEEE80211_CHANCTX_SHARED); if (err) return err; @@ -1679,6 +1746,7 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); ieee80211_stop_mesh(sdata); + ieee80211_vif_release_channel(sdata); return 0; } @@ -1688,10 +1756,14 @@ static int ieee80211_change_bss(struct wiphy *wiphy, struct net_device *dev, struct bss_parameters *params) { - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + enum ieee80211_band band; u32 changed = 0; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + if (!rtnl_dereference(sdata->u.ap.beacon)) + return -ENOENT; + + band = ieee80211_get_sdata_band(sdata); if (params->use_cts_prot >= 0) { sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; @@ -1704,7 +1776,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, } if (!sdata->vif.bss_conf.use_short_slot && - sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) { + band == IEEE80211_BAND_5GHZ) { sdata->vif.bss_conf.use_short_slot = true; changed |= BSS_CHANGED_ERP_SLOT; } @@ -1718,9 +1790,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, if (params->basic_rates) { int i, j; u32 rates = 0; - struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_supported_band *sband = - wiphy->bands[local->oper_channel->band]; + struct ieee80211_supported_band *sband = wiphy->bands[band]; for (i = 0; i < params->basic_rates_len; i++) { int rate = (params->basic_rates[i] & 0x7f) * 5; @@ -1746,6 +1816,16 @@ static int ieee80211_change_bss(struct wiphy *wiphy, changed |= BSS_CHANGED_HT; } + if (params->p2p_ctwindow >= 0) { + sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow; + changed |= BSS_CHANGED_P2P_PS; + } + + if (params->p2p_opp_ps >= 0) { + sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps; + changed |= BSS_CHANGED_P2P_PS; + } + ieee80211_bss_info_change_notify(sdata, changed); return 0; @@ -1829,7 +1909,16 @@ static int ieee80211_scan(struct wiphy *wiphy, * beaconing hasn't been configured yet */ case NL80211_IFTYPE_AP: - if (sdata->u.ap.beacon) + /* + * If the scan has been forced (and the driver supports + * forcing), don't care about being beaconing already. + * This will create problems to the attached stations (e.g. all + * the frames sent while scanning on other channel will be + * lost) + */ + if (sdata->u.ap.beacon && + (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || + !(req->flags & NL80211_SCAN_FLAG_AP))) return -EOPNOTSUPP; break; default: @@ -1872,20 +1961,6 @@ static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_assoc_request *req) { - struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (ieee80211_get_channel_mode(local, sdata)) { - case CHAN_MODE_HOPPING: - return -EBUSY; - case CHAN_MODE_FIXED: - if (local->oper_channel == req->bss->channel) - break; - return -EBUSY; - case CHAN_MODE_UNDEFINED: - break; - } - return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); } @@ -1904,30 +1979,22 @@ static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ibss_params *params) { - struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (ieee80211_get_channel_mode(local, sdata)) { - case CHAN_MODE_HOPPING: - return -EBUSY; - case CHAN_MODE_FIXED: - if (!params->channel_fixed) - return -EBUSY; - if (local->oper_channel == params->channel) - break; - return -EBUSY; - case CHAN_MODE_UNDEFINED: - break; - } - - return ieee80211_ibss_join(sdata, params); + return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); } static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) { + return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); +} + +static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, + int rate[IEEE80211_NUM_BANDS]) +{ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - return ieee80211_ibss_leave(sdata); + memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate)); + + return 0; } static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) @@ -1956,10 +2023,16 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) return err; } - if (changed & WIPHY_PARAM_RETRY_SHORT) + if (changed & WIPHY_PARAM_RETRY_SHORT) { + if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) + return -EINVAL; local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; - if (changed & WIPHY_PARAM_RETRY_LONG) + } + if (changed & WIPHY_PARAM_RETRY_LONG) { + if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) + return -EINVAL; local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; + } if (changed & (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); @@ -1968,41 +2041,65 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) } static int ieee80211_set_tx_power(struct wiphy *wiphy, + struct wireless_dev *wdev, enum nl80211_tx_power_setting type, int mbm) { struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_channel *chan = local->oper_channel; - u32 changes = 0; + struct ieee80211_sub_if_data *sdata; + + if (wdev) { + sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + + switch (type) { + case NL80211_TX_POWER_AUTOMATIC: + sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; + break; + case NL80211_TX_POWER_LIMITED: + case NL80211_TX_POWER_FIXED: + if (mbm < 0 || (mbm % 100)) + return -EOPNOTSUPP; + sdata->user_power_level = MBM_TO_DBM(mbm); + break; + } + + ieee80211_recalc_txpower(sdata); + + return 0; + } switch (type) { case NL80211_TX_POWER_AUTOMATIC: - local->user_power_level = -1; + local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; break; case NL80211_TX_POWER_LIMITED: - if (mbm < 0 || (mbm % 100)) - return -EOPNOTSUPP; - local->user_power_level = MBM_TO_DBM(mbm); - break; case NL80211_TX_POWER_FIXED: if (mbm < 0 || (mbm % 100)) return -EOPNOTSUPP; - /* TODO: move to cfg80211 when it knows the channel */ - if (MBM_TO_DBM(mbm) > chan->max_power) - return -EINVAL; local->user_power_level = MBM_TO_DBM(mbm); break; } - ieee80211_hw_config(local, changes); + mutex_lock(&local->iflist_mtx); + list_for_each_entry(sdata, &local->interfaces, list) + sdata->user_power_level = local->user_power_level; + list_for_each_entry(sdata, &local->interfaces, list) + ieee80211_recalc_txpower(sdata); + mutex_unlock(&local->iflist_mtx); return 0; } -static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) +static int ieee80211_get_tx_power(struct wiphy *wiphy, + struct wireless_dev *wdev, + int *dbm) { struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - *dbm = local->hw.conf.power_level; + if (!local->use_chanctx) + *dbm = local->hw.conf.power_level; + else + *dbm = sdata->vif.bss_conf.txpower; return 0; } @@ -2067,13 +2164,12 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, /* * If not associated, or current association is not an HT - * association, there's no need to send an action frame. + * association, there's no need to do anything, just store + * the new value until we associate. */ if (!sdata->u.mgd.associated || - sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) { - ieee80211_recalc_smps(sdata->local); + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return 0; - } ap = sdata->u.mgd.associated->bssid; @@ -2179,7 +2275,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, static int ieee80211_start_roc_work(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *channel, - enum nl80211_channel_type channel_type, unsigned int duration, u64 *cookie, struct sk_buff *txskb) { @@ -2189,12 +2284,14 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, lockdep_assert_held(&local->mtx); + if (local->use_chanctx && !local->ops->remain_on_channel) + return -EOPNOTSUPP; + roc = kzalloc(sizeof(*roc), GFP_KERNEL); if (!roc) return -ENOMEM; roc->chan = channel; - roc->chan_type = channel_type; roc->duration = duration; roc->req_duration = duration; roc->frame = txskb; @@ -2227,7 +2324,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, if (!duration) duration = 10; - ret = drv_remain_on_channel(local, channel, channel_type, duration); + ret = drv_remain_on_channel(local, sdata, channel, duration); if (ret) { kfree(roc); return ret; @@ -2238,7 +2335,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, out_check_combine: list_for_each_entry(tmp, &local->roc_list, list) { - if (tmp->chan != channel || tmp->chan_type != channel_type) + if (tmp->chan != channel || tmp->sdata != sdata) continue; /* @@ -2332,13 +2429,22 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, list_add_tail(&roc->list, &local->roc_list); /* - * cookie is either the roc (for normal roc) + * cookie is either the roc cookie (for normal roc) * or the SKB (for mgmt TX) */ - if (txskb) + if (!txskb) { + /* local->mtx protects this */ + local->roc_cookie_counter++; + roc->cookie = local->roc_cookie_counter; + /* wow, you wrapped 64 bits ... more likely a bug */ + if (WARN_ON(roc->cookie == 0)) { + roc->cookie = 1; + local->roc_cookie_counter++; + } + *cookie = roc->cookie; + } else { *cookie = (unsigned long)txskb; - else - *cookie = (unsigned long)roc; + } return 0; } @@ -2346,7 +2452,6 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, static int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, unsigned int duration, u64 *cookie) { @@ -2355,7 +2460,7 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy, int ret; mutex_lock(&local->mtx); - ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + ret = ieee80211_start_roc_work(local, sdata, chan, duration, cookie, NULL); mutex_unlock(&local->mtx); @@ -2373,7 +2478,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, struct ieee80211_roc_work *dep, *tmp2; list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { - if (!mgmt_tx && (unsigned long)dep != cookie) + if (!mgmt_tx && dep->cookie != cookie) continue; else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) continue; @@ -2385,7 +2490,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, return 0; } - if (!mgmt_tx && (unsigned long)roc != cookie) + if (!mgmt_tx && roc->cookie != cookie) continue; else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) continue; @@ -2448,10 +2553,8 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, struct ieee80211_channel *chan, bool offchan, - enum nl80211_channel_type channel_type, - bool channel_type_valid, unsigned int wait, - const u8 *buf, size_t len, bool no_cck, - bool dont_wait_for_ack, u64 *cookie) + unsigned int wait, const u8 *buf, size_t len, + bool no_cck, bool dont_wait_for_ack, u64 *cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; @@ -2515,10 +2618,16 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, /* Check if the operating channel is the requested channel */ if (!need_offchan) { - need_offchan = chan != local->oper_channel; - if (channel_type_valid && - channel_type != local->_oper_channel_type) + struct ieee80211_chanctx_conf *chanctx_conf; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + + if (chanctx_conf) + need_offchan = chan != chanctx_conf->def.chan; + else need_offchan = true; + rcu_read_unlock(); } if (need_offchan && !offchan) { @@ -2552,7 +2661,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, local->hw.offchannel_tx_hw_queue; /* This will handle all kinds of coalescing and immediate TX */ - ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + ret = ieee80211_start_roc_work(local, sdata, chan, wait, cookie, skb); if (ret) kfree_skb(skb); @@ -2670,7 +2779,7 @@ static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) u16 capab; capab = 0; - if (local->oper_channel->band != IEEE80211_BAND_2GHZ) + if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) return capab; if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) @@ -2702,7 +2811,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_tdls_data *tf; tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); @@ -2722,10 +2831,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, tf->u.setup_req.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - ieee80211_add_srates_ie(sdata, skb, false, - local->oper_channel->band); - ieee80211_add_ext_srates_ie(sdata, skb, false, - local->oper_channel->band); + ieee80211_add_srates_ie(sdata, skb, false, band); + ieee80211_add_ext_srates_ie(sdata, skb, false, band); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_RESPONSE: @@ -2738,10 +2845,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, tf->u.setup_resp.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - ieee80211_add_srates_ie(sdata, skb, false, - local->oper_channel->band); - ieee80211_add_ext_srates_ie(sdata, skb, false, - local->oper_channel->band); + ieee80211_add_srates_ie(sdata, skb, false, band); + ieee80211_add_ext_srates_ie(sdata, skb, false, band); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_CONFIRM: @@ -2779,7 +2884,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_mgmt *mgmt; mgmt = (void *)skb_put(skb, 24); @@ -2802,10 +2907,8 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, mgmt->u.action.u.tdls_discover_resp.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - ieee80211_add_srates_ie(sdata, skb, false, - local->oper_channel->band); - ieee80211_add_ext_srates_ie(sdata, skb, false, - local->oper_channel->band); + ieee80211_add_srates_ie(sdata, skb, false, band); + ieee80211_add_ext_srates_ie(sdata, skb, false, band); ieee80211_tdls_add_ext_capab(skb); break; default: @@ -2822,7 +2925,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; - struct ieee80211_tx_info *info; struct sk_buff *skb = NULL; bool send_direct; int ret; @@ -2848,7 +2950,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, if (!skb) return -ENOMEM; - info = IEEE80211_SKB_CB(skb); skb_reserve(skb, local->hw.extra_tx_headroom); switch (action_code) { @@ -2985,12 +3086,19 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, bool qos; struct ieee80211_tx_info *info; struct sta_info *sta; + struct ieee80211_chanctx_conf *chanctx_conf; + enum ieee80211_band band; rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return -EINVAL; + } + band = chanctx_conf->def.chan->band; sta = sta_info_get(sdata, peer); if (sta) { qos = test_sta_flag(sta, WLAN_STA_WME); - rcu_read_unlock(); } else { rcu_read_unlock(); return -ENOLINK; @@ -3008,8 +3116,10 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, } skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); - if (!skb) + if (!skb) { + rcu_read_unlock(); return -ENOMEM; + } skb->dev = dev; @@ -3034,21 +3144,31 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, nullfunc->qos_ctrl = cpu_to_le16(7); local_bh_disable(); - ieee80211_xmit(sdata, skb); + ieee80211_xmit(sdata, skb, band); local_bh_enable(); + rcu_read_unlock(); *cookie = (unsigned long) skb; return 0; } -static struct ieee80211_channel * -ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, - enum nl80211_channel_type *type) +static int ieee80211_cfg_get_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct cfg80211_chan_def *chandef) { - struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + struct ieee80211_chanctx_conf *chanctx_conf; + int ret = -ENODATA; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (chanctx_conf) { + *chandef = chanctx_conf->def; + ret = 0; + } + rcu_read_unlock(); - *type = local->_oper_channel_type; - return local->oper_channel; + return ret; } #ifdef CONFIG_PM @@ -3103,6 +3223,7 @@ struct cfg80211_ops mac80211_config_ops = { .disassoc = ieee80211_disassoc, .join_ibss = ieee80211_join_ibss, .leave_ibss = ieee80211_leave_ibss, + .set_mcast_rate = ieee80211_set_mcast_rate, .set_wiphy_params = ieee80211_set_wiphy_params, .set_tx_power = ieee80211_set_tx_power, .get_tx_power = ieee80211_get_tx_power, diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 0bfc914ddd15..53f03120db55 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -3,168 +3,347 @@ */ #include <linux/nl80211.h> +#include <linux/export.h> #include <net/cfg80211.h> #include "ieee80211_i.h" +#include "driver-ops.h" -static enum ieee80211_chan_mode -__ieee80211_get_channel_mode(struct ieee80211_local *local, - struct ieee80211_sub_if_data *ignore) +static void ieee80211_change_chandef(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx, + const struct cfg80211_chan_def *chandef) { + if (cfg80211_chandef_identical(&ctx->conf.def, chandef)) + return; + + WARN_ON(!cfg80211_chandef_compatible(&ctx->conf.def, chandef)); + + ctx->conf.def = *chandef; + drv_change_chanctx(local, ctx, IEEE80211_CHANCTX_CHANGE_WIDTH); + + if (!local->use_chanctx) { + local->_oper_channel_type = cfg80211_get_chandef_type(chandef); + ieee80211_hw_config(local, 0); + } +} + +static struct ieee80211_chanctx * +ieee80211_find_chanctx(struct ieee80211_local *local, + const struct cfg80211_chan_def *chandef, + enum ieee80211_chanctx_mode mode) +{ + struct ieee80211_chanctx *ctx; + + lockdep_assert_held(&local->chanctx_mtx); + + if (mode == IEEE80211_CHANCTX_EXCLUSIVE) + return NULL; + + list_for_each_entry(ctx, &local->chanctx_list, list) { + const struct cfg80211_chan_def *compat; + + if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) + continue; + + compat = cfg80211_chandef_compatible(&ctx->conf.def, chandef); + if (!compat) + continue; + + ieee80211_change_chandef(local, ctx, compat); + + return ctx; + } + + return NULL; +} + +static struct ieee80211_chanctx * +ieee80211_new_chanctx(struct ieee80211_local *local, + const struct cfg80211_chan_def *chandef, + enum ieee80211_chanctx_mode mode) +{ + struct ieee80211_chanctx *ctx; + int err; + + lockdep_assert_held(&local->chanctx_mtx); + + ctx = kzalloc(sizeof(*ctx) + local->hw.chanctx_data_size, GFP_KERNEL); + if (!ctx) + return ERR_PTR(-ENOMEM); + + ctx->conf.def = *chandef; + ctx->conf.rx_chains_static = 1; + ctx->conf.rx_chains_dynamic = 1; + ctx->mode = mode; + + if (!local->use_chanctx) { + local->_oper_channel_type = + cfg80211_get_chandef_type(chandef); + local->_oper_channel = chandef->chan; + ieee80211_hw_config(local, 0); + } else { + err = drv_add_chanctx(local, ctx); + if (err) { + kfree(ctx); + return ERR_PTR(err); + } + } + + list_add_rcu(&ctx->list, &local->chanctx_list); + + return ctx; +} + +static void ieee80211_free_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) +{ + lockdep_assert_held(&local->chanctx_mtx); + + WARN_ON_ONCE(ctx->refcount != 0); + + if (!local->use_chanctx) { + local->_oper_channel_type = NL80211_CHAN_NO_HT; + ieee80211_hw_config(local, 0); + } else { + drv_remove_chanctx(local, ctx); + } + + list_del_rcu(&ctx->list); + kfree_rcu(ctx, rcu_head); +} + +static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx) +{ + struct ieee80211_local *local = sdata->local; + int ret; + + lockdep_assert_held(&local->chanctx_mtx); + + ret = drv_assign_vif_chanctx(local, sdata, ctx); + if (ret) + return ret; + + rcu_assign_pointer(sdata->vif.chanctx_conf, &ctx->conf); + ctx->refcount++; + + ieee80211_recalc_txpower(sdata); + + return 0; +} + +static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) +{ + struct ieee80211_chanctx_conf *conf = &ctx->conf; struct ieee80211_sub_if_data *sdata; + const struct cfg80211_chan_def *compat = NULL; - lockdep_assert_held(&local->iflist_mtx); + lockdep_assert_held(&local->chanctx_mtx); - list_for_each_entry(sdata, &local->interfaces, list) { - if (sdata == ignore) + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + + if (!ieee80211_sdata_running(sdata)) + continue; + if (rcu_access_pointer(sdata->vif.chanctx_conf) != conf) continue; + if (!compat) + compat = &sdata->vif.bss_conf.chandef; + + compat = cfg80211_chandef_compatible( + &sdata->vif.bss_conf.chandef, compat); + if (!compat) + break; + } + rcu_read_unlock(); + + if (WARN_ON_ONCE(!compat)) + return; + + ieee80211_change_chandef(local, ctx, compat); +} + +static void ieee80211_unassign_vif_chanctx(struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx) +{ + struct ieee80211_local *local = sdata->local; + + lockdep_assert_held(&local->chanctx_mtx); + + ctx->refcount--; + rcu_assign_pointer(sdata->vif.chanctx_conf, NULL); + + drv_unassign_vif_chanctx(local, sdata, ctx); + + if (ctx->refcount > 0) { + ieee80211_recalc_chanctx_chantype(sdata->local, ctx); + ieee80211_recalc_smps_chanctx(local, ctx); + } +} + +static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *conf; + struct ieee80211_chanctx *ctx; + + lockdep_assert_held(&local->chanctx_mtx); + + conf = rcu_dereference_protected(sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (!conf) + return; + + ctx = container_of(conf, struct ieee80211_chanctx, conf); + + ieee80211_unassign_vif_chanctx(sdata, ctx); + if (ctx->refcount == 0) + ieee80211_free_chanctx(local, ctx); +} + +void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *chanctx) +{ + struct ieee80211_sub_if_data *sdata; + u8 rx_chains_static, rx_chains_dynamic; + + lockdep_assert_held(&local->chanctx_mtx); + + rx_chains_static = 1; + rx_chains_dynamic = 1; + + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + u8 needed_static, needed_dynamic; + if (!ieee80211_sdata_running(sdata)) continue; + if (rcu_access_pointer(sdata->vif.chanctx_conf) != + &chanctx->conf) + continue; + switch (sdata->vif.type) { - case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_P2P_DEVICE: continue; case NL80211_IFTYPE_STATION: if (!sdata->u.mgd.associated) continue; break; - case NL80211_IFTYPE_ADHOC: - if (!sdata->u.ibss.ssid_len) - continue; - if (!sdata->u.ibss.fixed_channel) - return CHAN_MODE_HOPPING; - break; case NL80211_IFTYPE_AP_VLAN: - /* will also have _AP interface */ continue; case NL80211_IFTYPE_AP: - if (!sdata->u.ap.beacon) - continue; - break; + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_WDS: case NL80211_IFTYPE_MESH_POINT: - if (!sdata->wdev.mesh_id_len) - continue; break; default: + WARN_ON_ONCE(1); + } + + switch (sdata->smps_mode) { + default: + WARN_ONCE(1, "Invalid SMPS mode %d\n", + sdata->smps_mode); + /* fall through */ + case IEEE80211_SMPS_OFF: + needed_static = sdata->needed_rx_chains; + needed_dynamic = sdata->needed_rx_chains; + break; + case IEEE80211_SMPS_DYNAMIC: + needed_static = 1; + needed_dynamic = sdata->needed_rx_chains; + break; + case IEEE80211_SMPS_STATIC: + needed_static = 1; + needed_dynamic = 1; break; } - return CHAN_MODE_FIXED; + rx_chains_static = max(rx_chains_static, needed_static); + rx_chains_dynamic = max(rx_chains_dynamic, needed_dynamic); } + rcu_read_unlock(); - return CHAN_MODE_UNDEFINED; -} - -enum ieee80211_chan_mode -ieee80211_get_channel_mode(struct ieee80211_local *local, - struct ieee80211_sub_if_data *ignore) -{ - enum ieee80211_chan_mode mode; + if (!local->use_chanctx) { + if (rx_chains_static > 1) + local->smps_mode = IEEE80211_SMPS_OFF; + else if (rx_chains_dynamic > 1) + local->smps_mode = IEEE80211_SMPS_DYNAMIC; + else + local->smps_mode = IEEE80211_SMPS_STATIC; + ieee80211_hw_config(local, 0); + } - mutex_lock(&local->iflist_mtx); - mode = __ieee80211_get_channel_mode(local, ignore); - mutex_unlock(&local->iflist_mtx); + if (rx_chains_static == chanctx->conf.rx_chains_static && + rx_chains_dynamic == chanctx->conf.rx_chains_dynamic) + return; - return mode; + chanctx->conf.rx_chains_static = rx_chains_static; + chanctx->conf.rx_chains_dynamic = rx_chains_dynamic; + drv_change_chanctx(local, chanctx, IEEE80211_CHANCTX_CHANGE_RX_CHAINS); } -static enum nl80211_channel_type -ieee80211_get_superchan(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata) +int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, + const struct cfg80211_chan_def *chandef, + enum ieee80211_chanctx_mode mode) { - enum nl80211_channel_type superchan = NL80211_CHAN_NO_HT; - struct ieee80211_sub_if_data *tmp; + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx *ctx; + int ret; - mutex_lock(&local->iflist_mtx); - list_for_each_entry(tmp, &local->interfaces, list) { - if (tmp == sdata) - continue; - - if (!ieee80211_sdata_running(tmp)) - continue; + WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev)); - switch (tmp->vif.bss_conf.channel_type) { - case NL80211_CHAN_NO_HT: - case NL80211_CHAN_HT20: - if (superchan > tmp->vif.bss_conf.channel_type) - break; + mutex_lock(&local->chanctx_mtx); + __ieee80211_vif_release_channel(sdata); - superchan = tmp->vif.bss_conf.channel_type; - break; - case NL80211_CHAN_HT40PLUS: - WARN_ON(superchan == NL80211_CHAN_HT40MINUS); - superchan = NL80211_CHAN_HT40PLUS; - break; - case NL80211_CHAN_HT40MINUS: - WARN_ON(superchan == NL80211_CHAN_HT40PLUS); - superchan = NL80211_CHAN_HT40MINUS; - break; - } + ctx = ieee80211_find_chanctx(local, chandef, mode); + if (!ctx) + ctx = ieee80211_new_chanctx(local, chandef, mode); + if (IS_ERR(ctx)) { + ret = PTR_ERR(ctx); + goto out; } - mutex_unlock(&local->iflist_mtx); - return superchan; -} + sdata->vif.bss_conf.chandef = *chandef; -static bool -ieee80211_channel_types_are_compatible(enum nl80211_channel_type chantype1, - enum nl80211_channel_type chantype2, - enum nl80211_channel_type *compat) -{ - /* - * start out with chantype1 being the result, - * overwriting later if needed - */ - if (compat) - *compat = chantype1; - - switch (chantype1) { - case NL80211_CHAN_NO_HT: - if (compat) - *compat = chantype2; - break; - case NL80211_CHAN_HT20: - /* - * allow any change that doesn't go to no-HT - * (if it already is no-HT no change is needed) - */ - if (chantype2 == NL80211_CHAN_NO_HT) - break; - if (compat) - *compat = chantype2; - break; - case NL80211_CHAN_HT40PLUS: - case NL80211_CHAN_HT40MINUS: - /* allow smaller bandwidth and same */ - if (chantype2 == NL80211_CHAN_NO_HT) - break; - if (chantype2 == NL80211_CHAN_HT20) - break; - if (chantype2 == chantype1) - break; - return false; + ret = ieee80211_assign_vif_chanctx(sdata, ctx); + if (ret) { + /* if assign fails refcount stays the same */ + if (ctx->refcount == 0) + ieee80211_free_chanctx(local, ctx); + goto out; } - return true; + ieee80211_recalc_smps_chanctx(local, ctx); + out: + mutex_unlock(&local->chanctx_mtx); + return ret; } -bool ieee80211_set_channel_type(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - enum nl80211_channel_type chantype) +void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) { - enum nl80211_channel_type superchan; - enum nl80211_channel_type compatchan; - - superchan = ieee80211_get_superchan(local, sdata); - if (!ieee80211_channel_types_are_compatible(superchan, chantype, - &compatchan)) - return false; + WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev)); - local->_oper_channel_type = compatchan; - - if (sdata) - sdata->vif.bss_conf.channel_type = chantype; + mutex_lock(&sdata->local->chanctx_mtx); + __ieee80211_vif_release_channel(sdata); + mutex_unlock(&sdata->local->chanctx_mtx); +} - return true; +void ieee80211_iter_chan_contexts_atomic( + struct ieee80211_hw *hw, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *chanctx_conf, + void *data), + void *iter_data) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_chanctx *ctx; + rcu_read_lock(); + list_for_each_entry_rcu(ctx, &local->chanctx_list, list) + iter(hw, &ctx->conf, iter_data); + rcu_read_unlock(); } +EXPORT_SYMBOL_GPL(ieee80211_iter_chan_contexts_atomic); diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h index 9be4e6d71d00..214ed4ecd739 100644 --- a/net/mac80211/debugfs.h +++ b/net/mac80211/debugfs.h @@ -2,9 +2,9 @@ #define __MAC80211_DEBUGFS_H #ifdef CONFIG_MAC80211_DEBUGFS -extern void debugfs_hw_add(struct ieee80211_local *local); -extern int mac80211_format_buffer(char __user *userbuf, size_t count, - loff_t *ppos, char *fmt, ...); +void debugfs_hw_add(struct ieee80211_local *local); +int __printf(4, 5) mac80211_format_buffer(char __user *userbuf, size_t count, + loff_t *ppos, char *fmt, ...); #else static inline void debugfs_hw_add(struct ieee80211_local *local) { diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 090d08ff22c4..c3a3082b72e5 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -116,7 +116,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct ieee80211_key *key = file->private_data; - char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf; + char buf[14*IEEE80211_NUM_TIDS+1], *p = buf; int i, len; const u8 *rpn; @@ -126,7 +126,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, len = scnprintf(buf, sizeof(buf), "\n"); break; case WLAN_CIPHER_SUITE_TKIP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) + for (i = 0; i < IEEE80211_NUM_TIDS; i++) p += scnprintf(p, sizeof(buf)+buf-p, "%08x %04x\n", key->u.tkip.rx[i].iv32, @@ -134,7 +134,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, len = p - buf; break; case WLAN_CIPHER_SUITE_CCMP: - for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) { rpn = key->u.ccmp.rx_pn[i]; p += scnprintf(p, sizeof(buf)+buf-p, "%02x%02x%02x%02x%02x%02x\n", @@ -199,6 +199,22 @@ static ssize_t key_icverrors_read(struct file *file, char __user *userbuf, } KEY_OPS(icverrors); +static ssize_t key_mic_failures_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ieee80211_key *key = file->private_data; + char buf[20]; + int len; + + if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP) + return -EINVAL; + + len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures); + + return simple_read_from_buffer(userbuf, count, ppos, buf, len); +} +KEY_OPS(mic_failures); + static ssize_t key_key_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { @@ -260,6 +276,7 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key) DEBUGFS_ADD(rx_spec); DEBUGFS_ADD(replays); DEBUGFS_ADD(icverrors); + DEBUGFS_ADD(mic_failures); DEBUGFS_ADD(key); DEBUGFS_ADD(ifindex); }; diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 6d5aec9418ee..cbde5cc49a40 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -10,6 +10,7 @@ #include <linux/kernel.h> #include <linux/device.h> #include <linux/if.h> +#include <linux/if_ether.h> #include <linux/interrupt.h> #include <linux/netdevice.h> #include <linux/rtnetlink.h> @@ -167,7 +168,29 @@ IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz, IEEE80211_IF_FILE(flags, flags, HEX); IEEE80211_IF_FILE(state, state, LHEX); -IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC); +IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC); +IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC); +IEEE80211_IF_FILE(user_power_level, user_power_level, DEC); + +static ssize_t +ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata, + char *buf, int buflen) +{ + int len; + + len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n", + sdata->vif.hw_queue[IEEE80211_AC_VO], + sdata->vif.hw_queue[IEEE80211_AC_VI], + sdata->vif.hw_queue[IEEE80211_AC_BE], + sdata->vif.hw_queue[IEEE80211_AC_BK]); + + if (sdata->vif.type == NL80211_IFTYPE_AP) + len += scnprintf(buf + len, buflen - len, "cab queue: %d\n", + sdata->vif.cab_queue); + + return len; +} +__IEEE80211_IF_FILE(hw_queues, NULL); /* STA attributes */ IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC); @@ -217,7 +240,7 @@ static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata, return snprintf(buf, buflen, "request: %s\nused: %s\n", smps_modes[sdata->u.mgd.req_smps], - smps_modes[sdata->u.mgd.ap_smps]); + smps_modes[sdata->smps_mode]); } static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata, @@ -245,27 +268,6 @@ static ssize_t ieee80211_if_fmt_tkip_mic_test( return -EOPNOTSUPP; } -static int hwaddr_aton(const char *txt, u8 *addr) -{ - int i; - - for (i = 0; i < ETH_ALEN; i++) { - int a, b; - - a = hex_to_bin(*txt++); - if (a < 0) - return -1; - b = hex_to_bin(*txt++); - if (b < 0) - return -1; - *addr++ = (a << 4) | b; - if (i < 5 && *txt++ != ':') - return -1; - } - - return 0; -} - static ssize_t ieee80211_if_parse_tkip_mic_test( struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) { @@ -275,13 +277,7 @@ static ssize_t ieee80211_if_parse_tkip_mic_test( struct ieee80211_hdr *hdr; __le16 fc; - /* - * Assume colon-delimited MAC address with possible white space - * following. - */ - if (buflen < 3 * ETH_ALEN - 1) - return -EINVAL; - if (hwaddr_aton(buf, addr) < 0) + if (!mac_pton(buf, addr)) return -EINVAL; if (!ieee80211_sdata_running(sdata)) @@ -307,13 +303,16 @@ static ssize_t ieee80211_if_parse_tkip_mic_test( case NL80211_IFTYPE_STATION: fc |= cpu_to_le16(IEEE80211_FCTL_TODS); /* BSSID SA DA */ - if (sdata->vif.bss_conf.bssid == NULL) { + mutex_lock(&sdata->u.mgd.mtx); + if (!sdata->u.mgd.associated) { + mutex_unlock(&sdata->u.mgd.mtx); dev_kfree_skb(skb); return -ENOTCONN; } - memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN); + memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN); memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); memcpy(hdr->addr3, addr, ETH_ALEN); + mutex_unlock(&sdata->u.mgd.mtx); break; default: dev_kfree_skb(skb); @@ -395,14 +394,14 @@ __IEEE80211_IF_FILE_W(uapsd_max_sp_len); /* AP attributes */ IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC); -IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC); -IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC); +IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC); +IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC); static ssize_t ieee80211_if_fmt_num_buffered_multicast( const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) { return scnprintf(buf, buflen, "%u\n", - skb_queue_len(&sdata->u.ap.ps_bc_buf)); + skb_queue_len(&sdata->u.ap.ps.bc_buf)); } __IEEE80211_IF_FILE(num_buffered_multicast, NULL); @@ -443,7 +442,7 @@ static ssize_t ieee80211_if_parse_tsf( } ret = kstrtoull(buf, 10, &tsf); if (ret < 0) - return -EINVAL; + return ret; if (tsf_is_delta) tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf; if (local->ops->set_tsf) { @@ -471,7 +470,7 @@ IEEE80211_IF_FILE(dropped_frames_congestion, u.mesh.mshstats.dropped_frames_congestion, DEC); IEEE80211_IF_FILE(dropped_frames_no_route, u.mesh.mshstats.dropped_frames_no_route, DEC); -IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC); +IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC); /* Mesh parameters */ IEEE80211_IF_FILE(dot11MeshMaxRetries, @@ -531,6 +530,7 @@ static void add_common_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD(rc_rateidx_mask_5ghz); DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz); DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz); + DEBUGFS_ADD(hw_queues); } static void add_sta_files(struct ieee80211_sub_if_data *sdata) @@ -631,7 +631,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD(flags); DEBUGFS_ADD(state); - DEBUGFS_ADD(channel_type); + DEBUGFS_ADD(txpower); + DEBUGFS_ADD(user_power_level); + DEBUGFS_ADD(ap_power_level); if (sdata->vif.type != NL80211_IFTYPE_MONITOR) add_common_files(sdata); diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 5ccec2c1e9f6..6fb1168b9f16 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -14,6 +14,7 @@ #include "debugfs.h" #include "debugfs_sta.h" #include "sta_info.h" +#include "driver-ops.h" /* sta attributtes */ @@ -52,6 +53,7 @@ static const struct file_operations sta_ ##name## _ops = { \ STA_FILE(aid, sta.aid, D); STA_FILE(dev, sdata->name, S); STA_FILE(last_signal, last_signal, D); +STA_FILE(last_ack_signal, last_ack_signal, D); static ssize_t sta_flags_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) @@ -131,10 +133,10 @@ STA_OPS(connected_time); static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[15*NUM_RX_DATA_QUEUES], *p = buf; + char buf[15*IEEE80211_NUM_TIDS], *p = buf; int i; struct sta_info *sta = file->private_data; - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) + for (i = 0; i < IEEE80211_NUM_TIDS; i++) p += scnprintf(p, sizeof(buf)+buf-p, "%x ", le16_to_cpu(sta->last_seq_ctrl[i])); p += scnprintf(p, sizeof(buf)+buf-p, "\n"); @@ -145,7 +147,7 @@ STA_OPS(last_seq_ctrl); static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[71 + STA_TID_NUM * 40], *p = buf; + char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; int i; struct sta_info *sta = file->private_data; struct tid_ampdu_rx *tid_rx; @@ -158,7 +160,7 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, p += scnprintf(p, sizeof(buf) + buf - p, "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); - for (i = 0; i < STA_TID_NUM; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) { tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); @@ -218,9 +220,11 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu } else return -EINVAL; - tid = simple_strtoul(buf, NULL, 0); + ret = kstrtoul(buf, 0, &tid); + if (ret) + return ret; - if (tid >= STA_TID_NUM) + if (tid >= IEEE80211_NUM_TIDS) return -EINVAL; if (tx) { @@ -320,6 +324,38 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, } STA_OPS(ht_capa); +static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct sta_info *sta = file->private_data; + struct rate_info rinfo; + u16 rate; + sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo); + rate = cfg80211_calculate_bitrate(&rinfo); + + return mac80211_format_buffer(userbuf, count, ppos, + "%d.%d MBit/s\n", + rate/10, rate%10); +} +STA_OPS(current_tx_rate); + +static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct sta_info *sta = file->private_data; + struct rate_info rinfo; + u16 rate; + + sta_set_rate_info_rx(sta, &rinfo); + + rate = cfg80211_calculate_bitrate(&rinfo); + + return mac80211_format_buffer(userbuf, count, ppos, + "%d.%d MBit/s\n", + rate/10, rate%10); +} +STA_OPS(last_rx_rate); + #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, 0400, \ sta->debugfs.dir, sta, &sta_ ##name## _ops); @@ -334,6 +370,8 @@ STA_OPS(ht_capa); void ieee80211_sta_debugfs_add(struct sta_info *sta) { + struct ieee80211_local *local = sta->local; + struct ieee80211_sub_if_data *sdata = sta->sdata; struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; u8 mac[3*ETH_ALEN]; @@ -366,6 +404,9 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(dev); DEBUGFS_ADD(last_signal); DEBUGFS_ADD(ht_capa); + DEBUGFS_ADD(last_ack_signal); + DEBUGFS_ADD(current_tx_rate); + DEBUGFS_ADD(last_rx_rate); DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); DEBUGFS_ADD_COUNTER(tx_packets, tx_packets); @@ -379,10 +420,16 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed); DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count); DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count); + + drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); } void ieee80211_sta_debugfs_remove(struct sta_info *sta) { + struct ieee80211_local *local = sta->local; + struct ieee80211_sub_if_data *sdata = sta->sdata; + + drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); debugfs_remove_recursive(sta->debugfs.dir); sta->debugfs.dir = NULL; } diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index da9003b20004..698dc7e6f309 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -490,6 +490,38 @@ static inline void drv_sta_remove(struct ieee80211_local *local, trace_drv_return_void(local); } +#ifdef CONFIG_MAC80211_DEBUGFS +static inline void drv_sta_add_debugfs(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + struct dentry *dir) +{ + might_sleep(); + + sdata = get_bss_sdata(sdata); + check_sdata_in_driver(sdata); + + if (local->ops->sta_add_debugfs) + local->ops->sta_add_debugfs(&local->hw, &sdata->vif, + sta, dir); +} + +static inline void drv_sta_remove_debugfs(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + struct dentry *dir) +{ + might_sleep(); + + sdata = get_bss_sdata(sdata); + check_sdata_in_driver(sdata); + + if (local->ops->sta_remove_debugfs) + local->ops->sta_remove_debugfs(&local->hw, &sdata->vif, + sta, dir); +} +#endif + static inline __must_check int drv_sta_state(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, @@ -602,7 +634,7 @@ static inline void drv_reset_tsf(struct ieee80211_local *local, static inline int drv_tx_last_beacon(struct ieee80211_local *local) { - int ret = 0; /* default unsuported op for less congestion */ + int ret = 0; /* default unsupported op for less congestion */ might_sleep(); @@ -704,17 +736,17 @@ static inline int drv_get_antenna(struct ieee80211_local *local, } static inline int drv_remain_on_channel(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *chan, - enum nl80211_channel_type chantype, unsigned int duration) { int ret; might_sleep(); - trace_drv_remain_on_channel(local, chan, chantype, duration); - ret = local->ops->remain_on_channel(&local->hw, chan, chantype, - duration); + trace_drv_remain_on_channel(local, sdata, chan, duration); + ret = local->ops->remain_on_channel(&local->hw, &sdata->vif, + chan, duration); trace_drv_return_int(local, ret); return ret; @@ -871,4 +903,104 @@ static inline void drv_mgd_prepare_tx(struct ieee80211_local *local, local->ops->mgd_prepare_tx(&local->hw, &sdata->vif); trace_drv_return_void(local); } + +static inline int drv_add_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) +{ + int ret = -EOPNOTSUPP; + + trace_drv_add_chanctx(local, ctx); + if (local->ops->add_chanctx) + ret = local->ops->add_chanctx(&local->hw, &ctx->conf); + trace_drv_return_int(local, ret); + + return ret; +} + +static inline void drv_remove_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) +{ + trace_drv_remove_chanctx(local, ctx); + if (local->ops->remove_chanctx) + local->ops->remove_chanctx(&local->hw, &ctx->conf); + trace_drv_return_void(local); +} + +static inline void drv_change_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx, + u32 changed) +{ + trace_drv_change_chanctx(local, ctx, changed); + if (local->ops->change_chanctx) + local->ops->change_chanctx(&local->hw, &ctx->conf, changed); + trace_drv_return_void(local); +} + +static inline int drv_assign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx) +{ + int ret = 0; + + check_sdata_in_driver(sdata); + + trace_drv_assign_vif_chanctx(local, sdata, ctx); + if (local->ops->assign_vif_chanctx) + ret = local->ops->assign_vif_chanctx(&local->hw, + &sdata->vif, + &ctx->conf); + trace_drv_return_int(local, ret); + + return ret; +} + +static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx) +{ + check_sdata_in_driver(sdata); + + trace_drv_unassign_vif_chanctx(local, sdata, ctx); + if (local->ops->unassign_vif_chanctx) + local->ops->unassign_vif_chanctx(&local->hw, + &sdata->vif, + &ctx->conf); + trace_drv_return_void(local); +} + +static inline int drv_start_ap(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + int ret = 0; + + check_sdata_in_driver(sdata); + + trace_drv_start_ap(local, sdata, &sdata->vif.bss_conf); + if (local->ops->start_ap) + ret = local->ops->start_ap(&local->hw, &sdata->vif); + trace_drv_return_int(local, ret); + return ret; +} + +static inline void drv_stop_ap(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + check_sdata_in_driver(sdata); + + trace_drv_stop_ap(local, sdata); + if (local->ops->stop_ap) + local->ops->stop_ap(&local->hw, &sdata->vif); + trace_drv_return_void(local); +} + +static inline void drv_restart_complete(struct ieee80211_local *local) +{ + might_sleep(); + + trace_drv_restart_complete(local); + if (local->ops->restart_complete) + local->ops->restart_complete(&local->hw); + trace_drv_return_void(local); +} + #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 4b4538d63925..a71d891794a4 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -185,7 +185,7 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx) cancel_work_sync(&sta->ampdu_mlme.work); - for (i = 0; i < STA_TID_NUM; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) { __ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR, tx); __ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, WLAN_REASON_QSTA_LEAVE_QBSS, tx); @@ -209,7 +209,7 @@ void ieee80211_ba_session_work(struct work_struct *work) return; mutex_lock(&sta->ampdu_mlme.mtx); - for (tid = 0; tid < STA_TID_NUM; tid++) { + for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) { if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired)) ___ieee80211_stop_rx_ba_session( sta, tid, WLAN_BACK_RECIPIENT, diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index c21e33d1abd0..8881fc77fb13 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -26,7 +26,6 @@ #include "rate.h" #define IEEE80211_SCAN_INTERVAL (2 * HZ) -#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) #define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ) #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ) @@ -39,7 +38,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, const u8 *bssid, const int beacon_int, struct ieee80211_channel *chan, const u32 basic_rates, - const u16 capability, u64 tsf) + const u16 capability, u64 tsf, + bool creator) { struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; @@ -51,7 +51,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, struct cfg80211_bss *bss; u32 bss_change; u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; - enum nl80211_channel_type channel_type; + struct cfg80211_chan_def chandef; lockdep_assert_held(&ifibss->mtx); @@ -72,25 +72,29 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, /* if merging, indicate to driver that we leave the old IBSS */ if (sdata->vif.bss_conf.ibss_joined) { sdata->vif.bss_conf.ibss_joined = false; + sdata->vif.bss_conf.ibss_creator = false; netif_carrier_off(sdata->dev); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS); } - memcpy(ifibss->bssid, bssid, ETH_ALEN); - sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0; - local->oper_channel = chan; - channel_type = ifibss->channel_type; - if (!cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type)) - channel_type = NL80211_CHAN_HT20; - if (!ieee80211_set_channel_type(local, sdata, channel_type)) { - /* can only fail due to HT40+/- mismatch */ - channel_type = NL80211_CHAN_HT20; - WARN_ON(!ieee80211_set_channel_type(local, sdata, - NL80211_CHAN_HT20)); + cfg80211_chandef_create(&chandef, chan, ifibss->channel_type); + if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) { + chandef.width = NL80211_CHAN_WIDTH_20; + chandef.center_freq1 = chan->center_freq; + } + + ieee80211_vif_release_channel(sdata); + if (ieee80211_vif_use_channel(sdata, &chandef, + ifibss->fixed_channel ? + IEEE80211_CHANCTX_SHARED : + IEEE80211_CHANCTX_EXCLUSIVE)) { + sdata_info(sdata, "Failed to join IBSS, no channel context\n"); + return; } - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); + + memcpy(ifibss->bssid, bssid, ETH_ALEN); sband = local->hw.wiphy->bands[chan->band]; @@ -156,7 +160,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, ifibss->ie, ifibss->ie_len); /* add HT capability and information IEs */ - if (channel_type && sband->ht_cap.ht_supported) { + if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT && + sband->ht_cap.ht_supported) { pos = skb_put(skb, 4 + sizeof(struct ieee80211_ht_cap) + sizeof(struct ieee80211_ht_operation)); @@ -168,7 +173,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, * keep them at 0 */ pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap, - chan, channel_type, 0); + &chandef, 0); } if (local->hw.queues >= IEEE80211_NUM_ACS) { @@ -196,7 +201,22 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, bss_change |= BSS_CHANGED_BASIC_RATES; bss_change |= BSS_CHANGED_HT; bss_change |= BSS_CHANGED_IBSS; + + /* + * In 5 GHz/802.11a, we can always use short slot time. + * (IEEE 802.11-2012 18.3.8.7) + * + * In 2.4GHz, we must always use long slots in IBSS for compatibility + * reasons. + * (IEEE 802.11-2012 19.4.5) + * + * HT follows these specifications (IEEE 802.11-2012 20.3.18) + */ + sdata->vif.bss_conf.use_short_slot = chan->band == IEEE80211_BAND_5GHZ; + bss_change |= BSS_CHANGED_ERP_SLOT; + sdata->vif.bss_conf.ibss_joined = true; + sdata->vif.bss_conf.ibss_creator = creator; ieee80211_bss_info_change_notify(sdata, bss_change); ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates); @@ -249,7 +269,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, cbss->channel, basic_rates, cbss->capability, - cbss->tsf); + cbss->tsf, + false); } static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta, @@ -279,7 +300,7 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta, ibss_dbg(sdata, "TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n", sdata->vif.addr, addr, sdata->u.ibss.bssid); - ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0, + ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, 0, NULL, 0, addr, sdata->u.ibss.bssid, NULL, 0, 0); } return sta; @@ -294,7 +315,8 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; struct sta_info *sta; - int band = local->oper_channel->band; + struct ieee80211_chanctx_conf *chanctx_conf; + int band; /* * XXX: Consider removing the least recently used entry and @@ -317,6 +339,13 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, return NULL; } + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON_ONCE(!chanctx_conf)) + return NULL; + band = chanctx_conf->def.chan->band; + rcu_read_unlock(); + sta = sta_info_alloc(sdata, addr, GFP_KERNEL); if (!sta) { rcu_read_lock(); @@ -362,11 +391,13 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); - if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) - return; ibss_dbg(sdata, "RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n", mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction); + + if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) + return; + sta_info_destroy_addr(sdata, mgmt->sa); sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false); rcu_read_unlock(); @@ -389,7 +420,7 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, * However, try to reply to authentication attempts if someone * has actually implemented this. */ - ieee80211_send_auth(sdata, 2, WLAN_AUTH_OPEN, NULL, 0, + ieee80211_send_auth(sdata, 2, WLAN_AUTH_OPEN, 0, NULL, 0, mgmt->sa, sdata->u.ibss.bssid, NULL, 0, 0); } @@ -461,9 +492,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, sdata->u.ibss.channel_type != NL80211_CHAN_NO_HT) { /* we both use HT */ struct ieee80211_sta_ht_cap sta_ht_cap_new; - enum nl80211_channel_type channel_type = - ieee80211_ht_oper_to_channel_type( - elems->ht_operation); + struct cfg80211_chan_def chandef; + + ieee80211_ht_oper_to_chandef(channel, + elems->ht_operation, + &chandef); ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems->ht_cap_elem, @@ -473,9 +506,9 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, * fall back to HT20 if we don't use or use * the other extension channel */ - if (!(channel_type == NL80211_CHAN_HT40MINUS || - channel_type == NL80211_CHAN_HT40PLUS) || - channel_type != sdata->u.ibss.channel_type) + if (chandef.width != NL80211_CHAN_WIDTH_40 || + cfg80211_get_chandef_type(&chandef) != + sdata->u.ibss.channel_type) sta_ht_cap_new.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; @@ -517,7 +550,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, goto put_bss; /* different channel */ - if (cbss->channel != local->oper_channel) + if (sdata->u.ibss.fixed_channel && + sdata->u.ibss.channel != cbss->channel) goto put_bss; /* different SSID */ @@ -530,30 +564,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid)) goto put_bss; - if (rx_status->flag & RX_FLAG_MACTIME_MPDU) { - /* - * For correct IBSS merging we need mactime; since mactime is - * defined as the time the first data symbol of the frame hits - * the PHY, and the timestamp of the beacon is defined as "the - * time that the data symbol containing the first bit of the - * timestamp is transmitted to the PHY plus the transmitting - * STA's delays through its local PHY from the MAC-PHY - * interface to its interface with the WM" (802.11 11.1.2) - * - equals the time this bit arrives at the receiver - we have - * to take into account the offset between the two. - * - * E.g. at 1 MBit that means mactime is 192 usec earlier - * (=24 bytes * 8 usecs/byte) than the beacon timestamp. - */ - int rate; - - if (rx_status->flag & RX_FLAG_HT) - rate = 65; /* TODO: HT rates */ - else - rate = local->hw.wiphy->bands[band]-> - bitrates[rx_status->rate_idx].bitrate; - - rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate); + if (ieee80211_have_rx_timestamp(rx_status)) { + /* time when timestamp field was received */ + rx_timestamp = + ieee80211_calculate_rx_timestamp(local, rx_status, + len + FCS_LEN, 24); } else { /* * second best option: get current TSF @@ -592,7 +607,8 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; struct sta_info *sta; - int band = local->oper_channel->band; + struct ieee80211_chanctx_conf *chanctx_conf; + int band; /* * XXX: Consider removing the least recently used entry and @@ -610,6 +626,15 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, if (!ether_addr_equal(bssid, sdata->u.ibss.bssid)) return; + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON_ONCE(!chanctx_conf)) { + rcu_read_unlock(); + return; + } + band = chanctx_conf->def.chan->band; + rcu_read_unlock(); + sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); if (!sta) return; @@ -715,7 +740,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) __ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int, ifibss->channel, ifibss->basic_rates, - capability, 0); + capability, 0, true); } /* @@ -784,18 +809,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) int interval = IEEE80211_SCAN_INTERVAL; if (time_after(jiffies, ifibss->ibss_join_req + - IEEE80211_IBSS_JOIN_TIMEOUT)) { - if (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) { - ieee80211_sta_create_ibss(sdata); - return; - } - sdata_info(sdata, "IBSS not allowed on %d MHz\n", - local->oper_channel->center_freq); - - /* No IBSS found - decrease scan interval and continue - * scanning. */ - interval = IEEE80211_SCAN_INTERVAL_SLOW; - } + IEEE80211_IBSS_JOIN_TIMEOUT)) + ieee80211_sta_create_ibss(sdata); mod_timer(&ifibss->timer, round_jiffies(jiffies + interval)); @@ -1082,21 +1097,11 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.beacon_int = params->beacon_interval; - sdata->u.ibss.channel = params->channel; - sdata->u.ibss.channel_type = params->channel_type; + sdata->u.ibss.channel = params->chandef.chan; + sdata->u.ibss.channel_type = + cfg80211_get_chandef_type(¶ms->chandef); sdata->u.ibss.fixed_channel = params->channel_fixed; - /* fix ourselves to that channel now already */ - if (params->channel_fixed) { - sdata->local->oper_channel = params->channel; - if (!ieee80211_set_channel_type(sdata->local, sdata, - params->channel_type)) { - mutex_unlock(&sdata->u.ibss.mtx); - kfree_skb(skb); - return -EINVAL; - } - } - if (params->ie) { sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len, GFP_KERNEL); @@ -1134,6 +1139,9 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_HT; ieee80211_bss_info_change_notify(sdata, changed); + sdata->smps_mode = IEEE80211_SMPS_OFF; + sdata->needed_rx_chains = sdata->local->rx_chains; + ieee80211_queue_work(&sdata->local->hw, &sdata->work); return 0; @@ -1197,6 +1205,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) lockdep_is_held(&sdata->u.ibss.mtx)); RCU_INIT_POINTER(sdata->u.ibss.presp, NULL); sdata->vif.bss_conf.ibss_joined = false; + sdata->vif.bss_conf.ibss_creator = false; ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_IBSS); synchronize_rcu(); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 156e5835e37f..42d0d0267730 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -56,6 +56,9 @@ struct ieee80211_local; #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024)) #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x)) +/* power level hasn't been configured (or set to automatic) */ +#define IEEE80211_UNSET_POWER_LEVEL INT_MIN + /* * Some APs experience problems when working with U-APSD. Decrease the * probability of that happening by using legacy mode for all ACs but VO. @@ -280,23 +283,27 @@ struct probe_resp { u8 data[0]; }; -struct ieee80211_if_ap { - struct beacon_data __rcu *beacon; - struct probe_resp __rcu *probe_resp; - - struct list_head vlans; - +struct ps_data { /* yes, this looks ugly, but guarantees that we can later use * bitmap_empty :) * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; - struct sk_buff_head ps_bc_buf; + struct sk_buff_head bc_buf; atomic_t num_sta_ps; /* number of stations in PS mode */ - atomic_t num_mcast_sta; /* number of stations receiving multicast */ int dtim_count; bool dtim_bc_mc; }; +struct ieee80211_if_ap { + struct beacon_data __rcu *beacon; + struct probe_resp __rcu *probe_resp; + + struct list_head vlans; + + struct ps_data ps; + atomic_t num_mcast_sta; /* number of stations receiving multicast */ +}; + struct ieee80211_if_wds { struct sta_info *sta; u8 remote_addr[ETH_ALEN]; @@ -316,7 +323,6 @@ struct mesh_stats { __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ __u32 dropped_frames_no_route; /* Not transmitted, no route found */ __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ - atomic_t estab_plinks; }; #define PREQ_Q_F_START 0x1 @@ -342,7 +348,6 @@ struct ieee80211_roc_work { struct ieee80211_sub_if_data *sdata; struct ieee80211_channel *chan; - enum nl80211_channel_type chan_type; bool started, abort, hw_begun, notified; @@ -350,7 +355,7 @@ struct ieee80211_roc_work { u32 duration, req_duration; struct sk_buff *frame; - u64 mgmt_tx_cookie; + u64 cookie, mgmt_tx_cookie; }; /* flags used in struct ieee80211_if_managed.flags */ @@ -358,7 +363,7 @@ enum ieee80211_sta_flags { IEEE80211_STA_BEACON_POLL = BIT(0), IEEE80211_STA_CONNECTION_POLL = BIT(1), IEEE80211_STA_CONTROL_PORT = BIT(2), - IEEE80211_STA_DISABLE_11N = BIT(4), + IEEE80211_STA_DISABLE_HT = BIT(4), IEEE80211_STA_CSA_RECEIVED = BIT(5), IEEE80211_STA_MFP_ENABLED = BIT(6), IEEE80211_STA_UAPSD_ENABLED = BIT(7), @@ -366,6 +371,8 @@ enum ieee80211_sta_flags { IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), IEEE80211_STA_DISABLE_40MHZ = BIT(10), IEEE80211_STA_DISABLE_VHT = BIT(11), + IEEE80211_STA_DISABLE_80P80MHZ = BIT(12), + IEEE80211_STA_DISABLE_160MHZ = BIT(13), }; struct ieee80211_mgd_auth_data { @@ -378,8 +385,9 @@ struct ieee80211_mgd_auth_data { u8 key_len, key_idx; bool done; - size_t ie_len; - u8 ie[]; + u16 sae_trans, sae_status; + size_t data_len; + u8 data[]; }; struct ieee80211_mgd_assoc_data { @@ -433,7 +441,6 @@ struct ieee80211_if_managed { bool powersave; /* powersave requested for this iface */ bool broken_ap; /* AP is broken -- turn off powersave */ enum ieee80211_smps_mode req_smps, /* requested smps mode */ - ap_smps, /* smps mode AP thinks we're in */ driver_smps_mode; /* smps mode request */ struct work_struct request_smps_work; @@ -467,6 +474,8 @@ struct ieee80211_if_managed { u8 use_4addr; + u8 p2p_noa_index; + /* Signal strength from the last Beacon frame in the current BSS. */ int last_beacon_signal; @@ -599,6 +608,7 @@ struct ieee80211_if_mesh { int preq_queue_len; struct mesh_stats mshstats; struct mesh_config mshcfg; + atomic_t estab_plinks; u32 mesh_seqnum; bool accepting_plinks; int num_gates; @@ -610,7 +620,7 @@ struct ieee80211_if_mesh { IEEE80211_MESH_SEC_SECURED = 0x2, } security; /* Extensible Synchronization Framework */ - struct ieee80211_mesh_sync_ops *sync_ops; + const struct ieee80211_mesh_sync_ops *sync_ops; s64 sync_offset_clockdrift_max; spinlock_t sync_offset_lock; bool adjusting_tbtt; @@ -658,6 +668,30 @@ enum ieee80211_sdata_state_bits { SDATA_STATE_OFFCHANNEL, }; +/** + * enum ieee80211_chanctx_mode - channel context configuration mode + * + * @IEEE80211_CHANCTX_SHARED: channel context may be used by + * multiple interfaces + * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used + * only by a single interface. This can be used for example for + * non-fixed channel IBSS. + */ +enum ieee80211_chanctx_mode { + IEEE80211_CHANCTX_SHARED, + IEEE80211_CHANCTX_EXCLUSIVE +}; + +struct ieee80211_chanctx { + struct list_head list; + struct rcu_head rcu_head; + + enum ieee80211_chanctx_mode mode; + int refcount; + + struct ieee80211_chanctx_conf conf; +}; + struct ieee80211_sub_if_data { struct list_head list; @@ -704,11 +738,20 @@ struct ieee80211_sub_if_data { struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; + /* used to reconfigure hardware SM PS */ + struct work_struct recalc_smps; + struct work_struct work; struct sk_buff_head skb_queue; bool arp_filter_state; + u8 needed_rx_chains; + enum ieee80211_smps_mode smps_mode; + + int user_power_level; /* in dBm */ + int ap_power_level; /* in dBm */ + /* * AP this belongs to: self in AP mode and * corresponding AP in VLAN mode, NULL for @@ -749,6 +792,21 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) return container_of(p, struct ieee80211_sub_if_data, vif); } +static inline enum ieee80211_band +ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata) +{ + enum ieee80211_band band = IEEE80211_BAND_2GHZ; + struct ieee80211_chanctx_conf *chanctx_conf; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!WARN_ON(!chanctx_conf)) + band = chanctx_conf->def.chan->band; + rcu_read_unlock(); + + return band; +} + enum sdata_queue_type { IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, IEEE80211_SDATA_QUEUE_AGG_START = 1, @@ -821,6 +879,7 @@ enum { * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to * send out data * @SCAN_RESUME: Resume the scan and scan the next channel + * @SCAN_ABORT: Abort the scan and go back to operating channel */ enum mac80211_scan_state { SCAN_DECISION, @@ -828,6 +887,7 @@ enum mac80211_scan_state { SCAN_SEND_PROBE, SCAN_SUSPEND, SCAN_RESUME, + SCAN_ABORT, }; struct ieee80211_local { @@ -858,15 +918,14 @@ struct ieee80211_local { bool wiphy_ciphers_allocated; + bool use_chanctx; + /* protects the aggregated multicast list and filter calls */ spinlock_t filter_lock; /* used for uploading changed mc list */ struct work_struct reconfig_filter; - /* used to reconfigure hardware SM PS */ - struct work_struct recalc_smps; - /* aggregated multicast list */ struct netdev_hw_addr_list mc_list; @@ -903,6 +962,9 @@ struct ieee80211_local { /* wowlan is enabled -- don't reconfig on resume */ bool wowlan; + /* number of RX chains the hardware has */ + u8 rx_chains; + int tx_headroom; /* required headroom for hardware/radiotap */ /* Tasklet and skb queue to process calls from IRQ mode. All frames @@ -972,6 +1034,7 @@ struct ieee80211_local { enum ieee80211_band hw_scan_band; int scan_channel_idx; int scan_ies_len; + int hw_scan_ies_bufsize; struct work_struct sched_scan_stopped_work; struct ieee80211_sub_if_data __rcu *sched_scan_sdata; @@ -980,12 +1043,17 @@ struct ieee80211_local { enum mac80211_scan_state next_scan_state; struct delayed_work scan_work; struct ieee80211_sub_if_data __rcu *scan_sdata; + struct ieee80211_channel *csa_channel; + /* For backward compatibility only -- do not use */ + struct ieee80211_channel *_oper_channel; enum nl80211_channel_type _oper_channel_type; - struct ieee80211_channel *oper_channel, *csa_channel; /* Temporary remain-on-channel for off-channel operations */ struct ieee80211_channel *tmp_channel; - enum nl80211_channel_type tmp_channel_type; + + /* channel contexts */ + struct list_head chanctx_list; + struct mutex chanctx_mtx; /* SNMP counters */ /* dot11CountersTable */ @@ -1058,8 +1126,7 @@ struct ieee80211_local { int dynamic_ps_user_timeout; bool disable_dynamic_ps; - int user_power_level; /* in dBm */ - int ap_power_level; /* in dBm */ + int user_power_level; /* in dBm, for all interfaces */ enum ieee80211_smps_mode smps_mode; @@ -1078,6 +1145,7 @@ struct ieee80211_local { struct list_head roc_list; struct work_struct hw_roc_start, hw_roc_done; unsigned long hw_roc_start_time; + u64 roc_cookie_counter; struct idr ack_status_frames; spinlock_t ack_status_lock; @@ -1091,6 +1159,7 @@ struct ieee80211_local { /* virtual monitor interface */ struct ieee80211_sub_if_data __rcu *monitor_sdata; + struct cfg80211_chan_def monitor_chandef; }; static inline struct ieee80211_sub_if_data * @@ -1133,6 +1202,8 @@ struct ieee802_11_elems { u8 *wmm_param; struct ieee80211_ht_cap *ht_cap_elem; struct ieee80211_ht_operation *ht_operation; + struct ieee80211_vht_cap *vht_cap_elem; + struct ieee80211_vht_operation *vht_operation; struct ieee80211_meshconf_ie *mesh_config; u8 *mesh_id; u8 *peering; @@ -1188,7 +1259,18 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) is_broadcast_ether_addr(raddr); } +static inline bool +ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) +{ + WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && + status->flag & RX_FLAG_MACTIME_END); + return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END); +} +u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, + struct ieee80211_rx_status *status, + unsigned int mpdu_len, + unsigned int mpdu_offset); int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, @@ -1302,6 +1384,9 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); +bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); +void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); + static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) { return test_bit(SDATA_STATE_RUNNING, &sdata->state); @@ -1361,6 +1446,13 @@ void ieee80211_ba_session_work(struct work_struct *work); void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); +u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); + +/* VHT */ +void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + struct ieee80211_vht_cap *vht_cap_ie, + struct ieee80211_sta_vht_cap *vht_cap); /* Spectrum management */ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, @@ -1395,11 +1487,42 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke gfp_t gfp); void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, bool bss_notify); -void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); +void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + enum ieee80211_band band); + +void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, int tid, + enum ieee80211_band band); -void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, int tid); -static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, +static inline void +ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, int tid, + enum ieee80211_band band) +{ + rcu_read_lock(); + __ieee80211_tx_skb_tid_band(sdata, skb, tid, band); + rcu_read_unlock(); +} + +static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, int tid) +{ + struct ieee80211_chanctx_conf *chanctx_conf; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + kfree_skb(skb); + return; + } + + __ieee80211_tx_skb_tid_band(sdata, skb, tid, + chanctx_conf->def.chan->band); + rcu_read_unlock(); +} + +static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ @@ -1446,14 +1569,14 @@ static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local, } void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, - u16 transaction, u16 auth_alg, + u16 transaction, u16 auth_alg, u16 status, u8 *extra, size_t extra_len, const u8 *bssid, const u8 *da, const u8 *key, u8 key_len, u8 key_idx); void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, const u8 *bssid, u16 stype, u16 reason, bool send_frame, u8 *frame_buf); int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, - const u8 *ie, size_t ie_len, + size_t buffer_len, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, u8 channel); struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, @@ -1466,7 +1589,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, const u8 *ssid, size_t ssid_len, const u8 *ie, size_t ie_len, u32 ratemask, bool directed, bool no_cck, - struct ieee80211_channel *channel); + struct ieee80211_channel *channel, bool scan); void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, const size_t supp_rates_len, @@ -1476,7 +1599,7 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local, enum ieee80211_band band, u32 *basic_rates); int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode smps_mode); -void ieee80211_recalc_smps(struct ieee80211_local *local); +void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata); size_t ieee80211_ie_split(const u8 *ies, size_t ielen, const u8 *ids, int n_ids, size_t offset); @@ -1484,8 +1607,7 @@ size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, u16 cap); u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, - struct ieee80211_channel *channel, - enum nl80211_channel_type channel_type, + const struct cfg80211_chan_def *chandef, u16 prot_mode); u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, u32 cap); @@ -1497,20 +1619,18 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, enum ieee80211_band band); /* channel management */ -enum ieee80211_chan_mode { - CHAN_MODE_UNDEFINED, - CHAN_MODE_HOPPING, - CHAN_MODE_FIXED, -}; - -enum ieee80211_chan_mode -ieee80211_get_channel_mode(struct ieee80211_local *local, - struct ieee80211_sub_if_data *ignore); -bool ieee80211_set_channel_type(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - enum nl80211_channel_type chantype); -enum nl80211_channel_type -ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper); +void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, + struct ieee80211_ht_operation *ht_oper, + struct cfg80211_chan_def *chandef); + +int __must_check +ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, + const struct cfg80211_chan_def *chandef, + enum ieee80211_chanctx_mode mode); +void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); + +void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *chanctx); #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 7de7717ad67d..09a80b55cf5a 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -42,6 +42,41 @@ * by either the RTNL, the iflist_mtx or RCU. */ +bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_chanctx_conf *chanctx_conf; + int power; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) { + rcu_read_unlock(); + return false; + } + + power = chanctx_conf->def.chan->max_power; + rcu_read_unlock(); + + if (sdata->user_power_level != IEEE80211_UNSET_POWER_LEVEL) + power = min(power, sdata->user_power_level); + + if (sdata->ap_power_level != IEEE80211_UNSET_POWER_LEVEL) + power = min(power, sdata->ap_power_level); + + if (power != sdata->vif.bss_conf.txpower) { + sdata->vif.bss_conf.txpower = power; + ieee80211_hw_config(sdata->local, 0); + return true; + } + + return false; +} + +void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata) +{ + if (__ieee80211_recalc_txpower(sdata)) + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER); +} static u32 ieee80211_idle_off(struct ieee80211_local *local, const char *reason) @@ -188,6 +223,47 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) return 0; } +static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr) +{ + struct ieee80211_sub_if_data *sdata; + u64 new, mask, tmp; + u8 *m; + int ret = 0; + + if (is_zero_ether_addr(local->hw.wiphy->addr_mask)) + return 0; + + m = addr; + new = ((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) | + ((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) | + ((u64)m[4] << 1*8) | ((u64)m[5] << 0*8); + + m = local->hw.wiphy->addr_mask; + mask = ((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) | + ((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) | + ((u64)m[4] << 1*8) | ((u64)m[5] << 0*8); + + + mutex_lock(&local->iflist_mtx); + list_for_each_entry(sdata, &local->interfaces, list) { + if (sdata->vif.type == NL80211_IFTYPE_MONITOR) + continue; + + m = sdata->vif.addr; + tmp = ((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) | + ((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) | + ((u64)m[4] << 1*8) | ((u64)m[5] << 0*8); + + if ((new & ~mask) != (tmp & ~mask)) { + ret = -EINVAL; + break; + } + } + mutex_unlock(&local->iflist_mtx); + + return ret; +} + static int ieee80211_change_mac(struct net_device *dev, void *addr) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); @@ -197,6 +273,10 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr) if (ieee80211_sdata_running(sdata)) return -EBUSY; + ret = ieee80211_verify_mac(sdata->local, sa->sa_data); + if (ret) + return ret; + ret = eth_mac_addr(dev, sa); if (ret == 0) @@ -380,6 +460,14 @@ static int ieee80211_add_virtual_monitor(struct ieee80211_local *local) goto out_unlock; } + ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef, + IEEE80211_CHANCTX_EXCLUSIVE); + if (ret) { + drv_remove_interface(local, sdata); + kfree(sdata); + goto out_unlock; + } + rcu_assign_pointer(local->monitor_sdata, sdata); out_unlock: mutex_unlock(&local->iflist_mtx); @@ -403,6 +491,8 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local) rcu_assign_pointer(local->monitor_sdata, NULL); synchronize_net(); + ieee80211_vif_release_channel(sdata); + drv_remove_interface(local, sdata); kfree(sdata); @@ -665,7 +755,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, *tmp; u32 hw_reconf_flags = 0; int i; - enum nl80211_channel_type orig_ct; clear_bit(SDATA_STATE_RUNNING, &sdata->state); @@ -729,34 +818,17 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, del_timer_sync(&local->dynamic_ps_timer); cancel_work_sync(&local->dynamic_ps_enable_work); + cancel_work_sync(&sdata->recalc_smps); + /* APs need special treatment */ if (sdata->vif.type == NL80211_IFTYPE_AP) { struct ieee80211_sub_if_data *vlan, *tmpsdata; - struct beacon_data *old_beacon = - rtnl_dereference(sdata->u.ap.beacon); - struct probe_resp *old_probe_resp = - rtnl_dereference(sdata->u.ap.probe_resp); - - /* sdata_running will return false, so this will disable */ - ieee80211_bss_info_change_notify(sdata, - BSS_CHANGED_BEACON_ENABLED); - - /* remove beacon and probe response */ - RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); - RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); - synchronize_rcu(); - kfree(old_beacon); - kfree(old_probe_resp); /* down all dependent devices, that is VLANs */ list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans, u.vlan.list) dev_close(vlan->dev); WARN_ON(!list_empty(&sdata->u.ap.vlans)); - - /* free all potentially still buffered bcast frames */ - local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps_bc_buf); - skb_queue_purge(&sdata->u.ap.ps_bc_buf); } else if (sdata->vif.type == NL80211_IFTYPE_STATION) { ieee80211_mgd_stop(sdata); } @@ -790,7 +862,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, rcu_assign_pointer(local->p2p_sdata, NULL); /* fall through */ default: - flush_work(&sdata->work); + cancel_work_sync(&sdata->work); /* * When we get here, the interface is marked down. * Call rcu_barrier() to wait both for the RX path @@ -837,14 +909,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, hw_reconf_flags = 0; } - /* Re-calculate channel-type, in case there are multiple vifs - * on different channel types. - */ - orig_ct = local->_oper_channel_type; - ieee80211_set_channel_type(local, NULL, NL80211_CHAN_NO_HT); - /* do after stop to avoid reconfiguring when we stop anyway */ - if (hw_reconf_flags || (orig_ct != local->_oper_channel_type)) + if (hw_reconf_flags) ieee80211_hw_config(local, hw_reconf_flags); spin_lock_irqsave(&local->queue_stop_reason_lock, flags); @@ -1121,6 +1187,13 @@ static void ieee80211_iface_work(struct work_struct *work) } } +static void ieee80211_recalc_smps_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, recalc_smps); + + ieee80211_recalc_smps(sdata); +} /* * Helper function to initialise an interface to a specific type. @@ -1149,6 +1222,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, skb_queue_head_init(&sdata->skb_queue); INIT_WORK(&sdata->work, ieee80211_iface_work); + INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work); switch (type) { case NL80211_IFTYPE_P2P_GO: @@ -1157,7 +1231,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, sdata->vif.p2p = true; /* fall through */ case NL80211_IFTYPE_AP: - skb_queue_head_init(&sdata->u.ap.ps_bc_buf); + skb_queue_head_init(&sdata->u.ap.ps.bc_buf); INIT_LIST_HEAD(&sdata->u.ap.vlans); break; case NL80211_IFTYPE_P2P_CLIENT: @@ -1282,11 +1356,6 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, if (type == ieee80211_vif_type_p2p(&sdata->vif)) return 0; - /* Setting ad-hoc mode on non-IBSS channel is not supported. */ - if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS && - type == NL80211_IFTYPE_ADHOC) - return -EOPNOTSUPP; - if (ieee80211_sdata_running(sdata)) { ret = ieee80211_runtime_change_iftype(sdata, type); if (ret) @@ -1298,9 +1367,6 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, } /* reset some values that shouldn't be kept across type changes */ - sdata->vif.bss_conf.basic_rates = - ieee80211_mandatory_rates(sdata->local, - sdata->local->oper_channel->band); sdata->drop_unencrypted = 0; if (type == NL80211_IFTYPE_STATION) sdata->u.mgd.use_4addr = false; @@ -1523,6 +1589,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, ieee80211_set_default_queues(sdata); + sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL; + sdata->user_power_level = local->user_power_level; + /* setup type-dependent data */ ieee80211_setup_sdata(sdata, type); diff --git a/net/mac80211/key.c b/net/mac80211/key.c index d27e61aaa71b..619c5d697999 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -339,7 +339,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, key->conf.iv_len = TKIP_IV_LEN; key->conf.icv_len = TKIP_ICV_LEN; if (seq) { - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) { key->u.tkip.rx[i].iv32 = get_unaligned_le32(&seq[2]); key->u.tkip.rx[i].iv16 = @@ -352,7 +352,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, key->conf.iv_len = CCMP_HDR_LEN; key->conf.icv_len = CCMP_MIC_LEN; if (seq) { - for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) + for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) for (j = 0; j < CCMP_PN_LEN; j++) key->u.ccmp.rx_pn[i][j] = seq[CCMP_PN_LEN - j - 1]; @@ -372,8 +372,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, key->conf.iv_len = 0; key->conf.icv_len = sizeof(struct ieee80211_mmie); if (seq) - for (j = 0; j < 6; j++) - key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1]; + for (j = 0; j < CMAC_PN_LEN; j++) + key->u.aes_cmac.rx_pn[j] = + seq[CMAC_PN_LEN - j - 1]; /* * Initialize AES key state here as an optimization so that * it does not need to be initialized for every packet. @@ -654,16 +655,16 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf, switch (key->conf.cipher) { case WLAN_CIPHER_SUITE_TKIP: - if (WARN_ON(tid < 0 || tid >= NUM_RX_DATA_QUEUES)) + if (WARN_ON(tid < 0 || tid >= IEEE80211_NUM_TIDS)) return; seq->tkip.iv32 = key->u.tkip.rx[tid].iv32; seq->tkip.iv16 = key->u.tkip.rx[tid].iv16; break; case WLAN_CIPHER_SUITE_CCMP: - if (WARN_ON(tid < -1 || tid >= NUM_RX_DATA_QUEUES)) + if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS)) return; if (tid < 0) - pn = key->u.ccmp.rx_pn[NUM_RX_DATA_QUEUES]; + pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS]; else pn = key->u.ccmp.rx_pn[tid]; memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN); diff --git a/net/mac80211/key.h b/net/mac80211/key.h index 7d4e31f037d7..382dc44ed330 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -30,8 +30,6 @@ #define TKIP_ICV_LEN 4 #define CMAC_PN_LEN 6 -#define NUM_RX_DATA_QUEUES 16 - struct ieee80211_local; struct ieee80211_sub_if_data; struct sta_info; @@ -82,17 +80,20 @@ struct ieee80211_key { struct tkip_ctx tx; /* last received RSC */ - struct tkip_ctx rx[NUM_RX_DATA_QUEUES]; + struct tkip_ctx rx[IEEE80211_NUM_TIDS]; + + /* number of mic failures */ + u32 mic_failures; } tkip; struct { atomic64_t tx_pn; /* * Last received packet number. The first - * NUM_RX_DATA_QUEUES counters are used with Data + * IEEE80211_NUM_TIDS counters are used with Data * frames and the last counter is used with Robust * Management frames. */ - u8 rx_pn[NUM_RX_DATA_QUEUES + 1][CCMP_PN_LEN]; + u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN]; struct crypto_cipher *tfm; u32 replays; /* dot11RSNAStatsCCMPReplays */ } ccmp; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index f57f597972f8..1b087fff93e7 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -93,15 +93,15 @@ static void ieee80211_reconfig_filter(struct work_struct *work) ieee80211_configure_filter(local); } -int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) +static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) { + struct ieee80211_sub_if_data *sdata; struct ieee80211_channel *chan; - int ret = 0; + u32 changed = 0; int power; enum nl80211_channel_type channel_type; u32 offchannel_flag; - - might_sleep(); + bool scanning = false; offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; if (local->scan_channel) { @@ -109,19 +109,19 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) /* If scanning on oper channel, use whatever channel-type * is currently in use. */ - if (chan == local->oper_channel) + if (chan == local->_oper_channel) channel_type = local->_oper_channel_type; else channel_type = NL80211_CHAN_NO_HT; } else if (local->tmp_channel) { chan = local->tmp_channel; - channel_type = local->tmp_channel_type; + channel_type = NL80211_CHAN_NO_HT; } else { - chan = local->oper_channel; + chan = local->_oper_channel; channel_type = local->_oper_channel_type; } - if (chan != local->oper_channel || + if (chan != local->_oper_channel || channel_type != local->_oper_channel_type) local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; else @@ -148,22 +148,39 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) changed |= IEEE80211_CONF_CHANGE_SMPS; } - if (test_bit(SCAN_SW_SCANNING, &local->scanning) || - test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || - test_bit(SCAN_HW_SCANNING, &local->scanning) || - !local->ap_power_level) - power = chan->max_power; - else - power = min(chan->max_power, local->ap_power_level); + scanning = test_bit(SCAN_SW_SCANNING, &local->scanning) || + test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || + test_bit(SCAN_HW_SCANNING, &local->scanning); + power = chan->max_power; - if (local->user_power_level >= 0) - power = min(power, local->user_power_level); + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (!rcu_access_pointer(sdata->vif.chanctx_conf)) + continue; + power = min(power, sdata->vif.bss_conf.txpower); + } + rcu_read_unlock(); if (local->hw.conf.power_level != power) { changed |= IEEE80211_CONF_CHANGE_POWER; local->hw.conf.power_level = power; } + return changed; +} + +int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) +{ + int ret = 0; + + might_sleep(); + + if (!local->use_chanctx) + changed |= ieee80211_hw_conf_chan(local); + else + changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | + IEEE80211_CONF_CHANGE_POWER); + if (changed && local->open_count) { ret = drv_config(local, changed); /* @@ -359,14 +376,6 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw) } EXPORT_SYMBOL(ieee80211_restart_hw); -static void ieee80211_recalc_smps_work(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, recalc_smps); - - ieee80211_recalc_smps(local); -} - #ifdef CONFIG_INET static int ieee80211_ifa_changed(struct notifier_block *nb, unsigned long data, void *arg) @@ -465,7 +474,8 @@ ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { .tx = 0xffff, .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_AUTH >> 4) | - BIT(IEEE80211_STYPE_DEAUTH >> 4), + BIT(IEEE80211_STYPE_DEAUTH >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4), }, [NL80211_IFTYPE_STATION] = { .tx = 0xffff, @@ -540,6 +550,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, struct ieee80211_local *local; int priv_size, i; struct wiphy *wiphy; + bool use_chanctx; if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || !ops->add_interface || !ops->remove_interface || @@ -549,6 +560,14 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) return NULL; + /* check all or no channel context operations exist */ + i = !!ops->add_chanctx + !!ops->remove_chanctx + + !!ops->change_chanctx + !!ops->assign_vif_chanctx + + !!ops->unassign_vif_chanctx; + if (WARN_ON(i != 0 && i != 5)) + return NULL; + use_chanctx = i == 5; + /* Ensure 32-byte alignment of our private data and hw private data. * We use the wiphy priv data for both our ieee80211_local and for * the driver's private data @@ -584,8 +603,15 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, if (ops->remain_on_channel) wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; - wiphy->features = NL80211_FEATURE_SK_TX_STATUS | - NL80211_FEATURE_HT_IBSS; + wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | + NL80211_FEATURE_SAE | + NL80211_FEATURE_HT_IBSS | + NL80211_FEATURE_VIF_TXPOWER; + + if (!ops->hw_scan) + wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | + NL80211_FEATURE_AP_SCAN; + if (!ops->set_key) wiphy->flags |= WIPHY_FLAG_IBSS_RSN; @@ -599,6 +625,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); local->ops = ops; + local->use_chanctx = use_chanctx; /* set up some defaults */ local->hw.queues = 1; @@ -612,7 +639,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | IEEE80211_RADIOTAP_MCS_HAVE_GI | IEEE80211_RADIOTAP_MCS_HAVE_BW; - local->user_power_level = -1; + local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | + IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; + local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; INIT_LIST_HEAD(&local->interfaces); @@ -626,6 +655,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, spin_lock_init(&local->filter_lock); spin_lock_init(&local->queue_stop_reason_lock); + INIT_LIST_HEAD(&local->chanctx_list); + mutex_init(&local->chanctx_mtx); + /* * The rx_skb_queue is only accessed from tasklets, * but other SKB queues are used from within IRQ @@ -641,7 +673,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, INIT_WORK(&local->restart_work, ieee80211_restart_work); INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); - INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); local->smps_mode = IEEE80211_SMPS_OFF; INIT_WORK(&local->dynamic_ps_enable_work, @@ -719,6 +750,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) return -EINVAL; + if (!local->use_chanctx) { + for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { + const struct ieee80211_iface_combination *comb; + + comb = &local->hw.wiphy->iface_combinations[i]; + + if (comb->num_different_channels > 1) + return -EINVAL; + } + } else { + /* + * WDS is currently prohibited when channel contexts are used + * because there's no clear definition of which channel WDS + * type interfaces use + */ + if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) + return -EINVAL; + } + /* Only HW csum features are currently compatible with mac80211 */ feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_HW_CSUM; @@ -728,6 +778,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (hw->max_report_rates == 0) hw->max_report_rates = hw->max_rates; + local->rx_chains = 1; + /* * generic code guarantees at least one band, * set this very early because much code assumes @@ -743,18 +795,28 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) sband = local->hw.wiphy->bands[band]; if (!sband) continue; - if (!local->oper_channel) { + if (!local->use_chanctx && !local->_oper_channel) { /* init channel we're on */ local->hw.conf.channel = - local->oper_channel = &sband->channels[0]; + local->_oper_channel = &sband->channels[0]; local->hw.conf.channel_type = NL80211_CHAN_NO_HT; } + cfg80211_chandef_create(&local->monitor_chandef, + &sband->channels[0], + NL80211_CHAN_NO_HT); channels += sband->n_channels; if (max_bitrates < sband->n_bitrates) max_bitrates = sband->n_bitrates; supp_ht = supp_ht || sband->ht_cap.ht_supported; supp_vht = supp_vht || sband->vht_cap.vht_supported; + + if (sband->ht_cap.ht_supported) + local->rx_chains = + max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), + local->rx_chains); + + /* TODO: consider VHT for RX chains, hopefully it's the same */ } local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + @@ -778,19 +840,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); - /* - * mac80211 doesn't support more than 1 channel, and also not more - * than one IBSS interface - */ + /* mac80211 doesn't support more than one IBSS interface right now */ for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { const struct ieee80211_iface_combination *c; int j; c = &hw->wiphy->iface_combinations[i]; - if (c->num_different_channels > 1) - return -EINVAL; - for (j = 0; j < c->n_limits; j++) if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && c->limits[j].max > 1) @@ -830,9 +886,21 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (supp_ht) local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); - if (supp_vht) + if (supp_vht) { local->scan_ies_len += - 2 + sizeof(struct ieee80211_vht_capabilities); + 2 + sizeof(struct ieee80211_vht_cap); + + /* + * (for now at least), drivers wanting to use VHT must + * support channel contexts, as they contain all the + * necessary VHT information and the global hw config + * doesn't (yet) + */ + if (WARN_ON(!local->use_chanctx)) { + result = -EINVAL; + goto fail_wiphy_register; + } + } if (!local->ops->hw_scan) { /* For hw_scan, driver needs to set these up. */ diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index ff0296c7bab8..1bf03f9ff3ba 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -76,7 +76,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; u32 basic_rates = 0; - enum nl80211_channel_type sta_channel_type = NL80211_CHAN_NO_HT; + struct cfg80211_chan_def sta_chan_def; /* * As support for each feature is added, check for matching @@ -97,23 +97,17 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) goto mismatch; - ieee80211_sta_get_rates(local, ie, local->oper_channel->band, + ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata), &basic_rates); if (sdata->vif.bss_conf.basic_rates != basic_rates) goto mismatch; - if (ie->ht_operation) - sta_channel_type = - ieee80211_ht_oper_to_channel_type(ie->ht_operation); - - /* Disallow HT40+/- mismatch */ - if (ie->ht_operation && - (sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40MINUS || - sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40PLUS) && - (sta_channel_type == NL80211_CHAN_HT40MINUS || - sta_channel_type == NL80211_CHAN_HT40PLUS) && - sdata->vif.bss_conf.channel_type != sta_channel_type) + 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)) goto mismatch; return true; @@ -129,7 +123,7 @@ mismatch: bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) { return (ie->mesh_config->meshconf_cap & - MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; + IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; } /** @@ -264,16 +258,16 @@ mesh_add_meshconf_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) /* Authentication Protocol identifier */ *pos++ = ifmsh->mesh_auth_id; /* Mesh Formation Info - number of neighbors */ - neighbors = atomic_read(&ifmsh->mshstats.estab_plinks); + neighbors = atomic_read(&ifmsh->estab_plinks); /* Number of neighbor mesh STAs or 15 whichever is smaller */ neighbors = (neighbors > 15) ? 15 : neighbors; *pos++ = neighbors << 1; /* Mesh capability */ - *pos = MESHCONF_CAPAB_FORWARDING; + *pos = IEEE80211_MESHCONF_CAPAB_FORWARDING; *pos |= ifmsh->accepting_plinks ? - MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; + IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; *pos++ |= ifmsh->adjusting_tbtt ? - MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00; + IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00; *pos++ = 0x00; return 0; @@ -355,12 +349,22 @@ int mesh_add_ds_params_ie(struct sk_buff *skb, { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - struct ieee80211_channel *chan = local->oper_channel; + 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(); + sband = local->hw.wiphy->bands[chan->band]; if (sband->band == IEEE80211_BAND_2GHZ) { pos = skb_put(skb, 2 + 1); @@ -376,12 +380,13 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u8 *pos; - sband = local->hw.wiphy->bands[local->oper_channel->band]; + sband = local->hw.wiphy->bands[band]; if (!sband->ht_cap.ht_supported || - sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) + sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return 0; if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap)) @@ -397,14 +402,26 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; - struct ieee80211_channel *channel = local->oper_channel; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *channel; enum nl80211_channel_type channel_type = - sdata->vif.bss_conf.channel_type; - struct ieee80211_supported_band *sband = - local->hw.wiphy->bands[channel->band]; - struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap; + cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef); + 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 || channel_type == NL80211_CHAN_NO_HT) return 0; @@ -412,7 +429,7 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb, return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation)); - ieee80211_ie_build_ht_oper(pos, ht_cap, channel, channel_type, + ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef, sdata->vif.bss_conf.ht_operation_mode); return 0; @@ -610,7 +627,7 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL; sdata->vif.bss_conf.basic_rates = ieee80211_mandatory_rates(sdata->local, - sdata->local->oper_channel->band); + ieee80211_get_sdata_band(sdata)); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_HT | @@ -680,8 +697,10 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, &elems); - /* ignore beacons from secure mesh peers if our security is off */ - if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) + /* 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)) return; if (elems.ds_params && elems.ds_params_len == 1) @@ -694,8 +713,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; - if (elems.mesh_id && elems.mesh_config && - mesh_matches_local(sdata, &elems)) + if (mesh_matches_local(sdata, &elems)) mesh_neighbour_update(sdata, mgmt->sa, &elems); if (ifmsh->sync_ops) diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 25d0f17dec71..7c9215fb2ac8 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -19,20 +19,6 @@ /* Data structures */ /** - * enum mesh_config_capab_flags - mesh config IE capability flags - * - * @MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish - * additional mesh peerings with other mesh STAs - * @MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs - * @MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure is ongoing - */ -enum mesh_config_capab_flags { - MESHCONF_CAPAB_ACCEPT_PLINKS = BIT(0), - MESHCONF_CAPAB_FORWARDING = BIT(3), - MESHCONF_CAPAB_TBTT_ADJUSTING = BIT(5), -}; - -/** * enum mesh_path_flags - mac80211 mesh path flags * * @@ -256,7 +242,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata); void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata); void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh); -struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method); +const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method); /* Mesh paths */ int mesh_nexthop_lookup(struct sk_buff *skb, @@ -324,7 +310,7 @@ extern int mesh_allocated; static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata) { return sdata->u.mesh.mshcfg.dot11MeshMaxPeerLinks - - atomic_read(&sdata->u.mesh.mshstats.estab_plinks); + atomic_read(&sdata->u.mesh.estab_plinks); } static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 3ab34d816897..4b274e9c91a5 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -19,12 +19,6 @@ #define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \ jiffies + HZ * t / 1000)) -#define dot11MeshMaxRetries(s) (s->u.mesh.mshcfg.dot11MeshMaxRetries) -#define dot11MeshRetryTimeout(s) (s->u.mesh.mshcfg.dot11MeshRetryTimeout) -#define dot11MeshConfirmTimeout(s) (s->u.mesh.mshcfg.dot11MeshConfirmTimeout) -#define dot11MeshHoldingTimeout(s) (s->u.mesh.mshcfg.dot11MeshHoldingTimeout) -#define dot11MeshMaxPeerLinks(s) (s->u.mesh.mshcfg.dot11MeshMaxPeerLinks) - /* We only need a valid sta if user configured a minimum rssi_threshold. */ #define rssi_threshold_check(sta, sdata) \ (sdata->u.mesh.mshcfg.rssi_threshold == 0 ||\ @@ -50,14 +44,14 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, static inline u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata) { - atomic_inc(&sdata->u.mesh.mshstats.estab_plinks); + atomic_inc(&sdata->u.mesh.estab_plinks); return mesh_accept_plinks_update(sdata); } static inline u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata) { - atomic_dec(&sdata->u.mesh.mshstats.estab_plinks); + atomic_dec(&sdata->u.mesh.estab_plinks); return mesh_accept_plinks_update(sdata); } @@ -117,7 +111,7 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata) u16 ht_opmode; bool non_ht_sta = false, ht20_sta = false; - if (sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) + if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return 0; rcu_read_lock(); @@ -126,14 +120,14 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata) sta->plink_state != NL80211_PLINK_ESTAB) continue; - switch (sta->ch_type) { - case NL80211_CHAN_NO_HT: + switch (sta->ch_width) { + case NL80211_CHAN_WIDTH_20_NOHT: mpl_dbg(sdata, "mesh_plink %pM: nonHT sta (%pM) is present\n", sdata->vif.addr, sta->sta.addr); non_ht_sta = true; goto out; - case NL80211_CHAN_HT20: + case NL80211_CHAN_WIDTH_20: mpl_dbg(sdata, "mesh_plink %pM: HT20 sta (%pM) is present\n", sdata->vif.addr, sta->sta.addr); @@ -148,7 +142,7 @@ out: if (non_ht_sta) ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED; else if (ht20_sta && - sdata->vif.bss_conf.channel_type > NL80211_CHAN_HT20) + sdata->vif.bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_20MHZ; else ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; @@ -252,6 +246,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, mgmt->u.action.u.self_prot.action_code = action; if (action != WLAN_SP_MESH_PEERING_CLOSE) { + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); + /* capability info */ pos = skb_put(skb, 2); memset(pos, 0, 2); @@ -260,10 +256,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, pos = skb_put(skb, 2); memcpy(pos + 2, &plid, 2); } - if (ieee80211_add_srates_ie(sdata, skb, true, - local->oper_channel->band) || - ieee80211_add_ext_srates_ie(sdata, skb, true, - local->oper_channel->band) || + if (ieee80211_add_srates_ie(sdata, skb, true, band) || + ieee80211_add_ext_srates_ie(sdata, skb, true, band) || mesh_add_rsn_ie(skb, sdata) || mesh_add_meshid_ie(skb, sdata) || mesh_add_meshconf_ie(skb, sdata)) @@ -343,7 +337,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *elems) { struct ieee80211_local *local = sdata->local; - enum ieee80211_band band = local->oper_channel->band; + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u32 rates, basic_rates = 0; struct sta_info *sta; @@ -378,7 +372,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, sta->sta.supp_rates[band] = rates; if (elems->ht_cap_elem && - sdata->vif.bss_conf.channel_type != NL80211_CHAN_NO_HT) + sdata->vif.bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems->ht_cap_elem, &sta->sta.ht_cap); @@ -386,15 +380,19 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, memset(&sta->sta.ht_cap, 0, sizeof(sta->sta.ht_cap)); if (elems->ht_operation) { + struct cfg80211_chan_def chandef; + if (!(elems->ht_operation->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) sta->sta.ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; - sta->ch_type = - ieee80211_ht_oper_to_channel_type(elems->ht_operation); + ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan, + elems->ht_operation, &chandef); + sta->ch_width = chandef.width; } - rate_control_rate_init(sta); + if (insert) + rate_control_rate_init(sta); spin_unlock_bh(&sta->lock); if (insert && sta_info_insert(sta)) @@ -430,6 +428,7 @@ static void mesh_plink_timer(unsigned long data) struct sta_info *sta; __le16 llid, plid, reason; struct ieee80211_sub_if_data *sdata; + struct mesh_config *mshcfg; /* * This STA is valid because sta_info_destroy() will @@ -456,12 +455,13 @@ static void mesh_plink_timer(unsigned long data) llid = sta->llid; plid = sta->plid; sdata = sta->sdata; + mshcfg = &sdata->u.mesh.mshcfg; switch (sta->plink_state) { case NL80211_PLINK_OPN_RCVD: case NL80211_PLINK_OPN_SNT: /* retry timer */ - if (sta->plink_retries < dot11MeshMaxRetries(sdata)) { + if (sta->plink_retries < mshcfg->dot11MeshMaxRetries) { u32 rand; mpl_dbg(sta->sdata, "Mesh plink for %pM (retry, timeout): %d %d\n", @@ -484,7 +484,7 @@ static void mesh_plink_timer(unsigned long data) if (!reason) reason = cpu_to_le16(WLAN_REASON_MESH_CONFIRM_TIMEOUT); sta->plink_state = NL80211_PLINK_HOLDING; - mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)); + mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout); spin_unlock_bh(&sta->lock); mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE, sta->sta.addr, llid, plid, reason); @@ -543,7 +543,7 @@ int mesh_plink_open(struct sta_info *sta) return -EBUSY; } sta->plink_state = NL80211_PLINK_OPN_SNT; - mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata)); + mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout); spin_unlock_bh(&sta->lock); mpl_dbg(sdata, "Mesh plink: starting establishment with %pM\n", @@ -570,6 +570,7 @@ void mesh_plink_block(struct sta_info *sta) void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { + struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg; struct ieee802_11_elems elems; struct sta_info *sta; enum plink_event event; @@ -777,7 +778,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta->plid = plid; get_random_bytes(&llid, 2); sta->llid = llid; - mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata)); + mesh_plink_timer_set(sta, + mshcfg->dot11MeshRetryTimeout); spin_unlock_bh(&sta->lock); mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_OPEN, @@ -803,7 +805,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta->reason = reason; sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, - dot11MeshHoldingTimeout(sdata))) + mshcfg->dot11MeshHoldingTimeout)) sta->ignore_plink_timer = true; llid = sta->llid; @@ -825,7 +827,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m case CNF_ACPT: sta->plink_state = NL80211_PLINK_CNF_RCVD; if (!mod_plink_timer(sta, - dot11MeshConfirmTimeout(sdata))) + mshcfg->dot11MeshConfirmTimeout)) sta->ignore_plink_timer = true; spin_unlock_bh(&sta->lock); @@ -847,7 +849,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta->reason = reason; sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, - dot11MeshHoldingTimeout(sdata))) + mshcfg->dot11MeshHoldingTimeout)) sta->ignore_plink_timer = true; llid = sta->llid; @@ -888,7 +890,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta->reason = reason; sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, - dot11MeshHoldingTimeout(sdata))) + mshcfg->dot11MeshHoldingTimeout)) sta->ignore_plink_timer = true; llid = sta->llid; @@ -923,7 +925,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m changed |= __mesh_plink_deactivate(sta); sta->plink_state = NL80211_PLINK_HOLDING; llid = sta->llid; - mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)); + mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout); spin_unlock_bh(&sta->lock); changed |= mesh_set_ht_prot_mode(sdata); mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE, diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c index a16b7b4b1e02..aa8d1e437385 100644 --- a/net/mac80211/mesh_sync.c +++ b/net/mac80211/mesh_sync.c @@ -43,7 +43,7 @@ struct sync_method { static bool mesh_peer_tbtt_adjusting(struct ieee802_11_elems *ie) { return (ie->mesh_config->meshconf_cap & - MESHCONF_CAPAB_TBTT_ADJUSTING) != 0; + IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING) != 0; } void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata) @@ -116,43 +116,13 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, goto no_sync; } - if (rx_status->flag & RX_FLAG_MACTIME_MPDU && rx_status->mactime) { - /* - * The mactime is defined as the time the first data symbol - * of the frame hits the PHY, and the timestamp of the beacon - * is defined as "the time that the data symbol containing the - * first bit of the timestamp is transmitted to the PHY plus - * the transmitting STA's delays through its local PHY from the - * MAC-PHY interface to its interface with the WM" (802.11 - * 11.1.2) - * - * T_r, in 13.13.2.2.2, is just defined as "the frame reception - * time" but we unless we interpret that time to be the same - * time of the beacon timestamp, the offset calculation will be - * off. Below we adjust t_r to be "the time at which the first - * symbol of the timestamp element in the beacon is received". - * This correction depends on the rate. - * - * Based on similar code in ibss.c - */ - int rate; - - if (rx_status->flag & RX_FLAG_HT) { - /* TODO: - * In principle there could be HT-beacons (Dual Beacon - * HT Operation options), but for now ignore them and - * just use the primary (i.e. non-HT) beacons for - * synchronization. - * */ - goto no_sync; - } else - rate = local->hw.wiphy->bands[rx_status->band]-> - bitrates[rx_status->rate_idx].bitrate; - - /* 24 bytes of header * 8 bits/byte * - * 10*(100 Kbps)/Mbps / rate (100 Kbps)*/ - t_r = rx_status->mactime + (24 * 8 * 10 / rate); - } + if (ieee80211_have_rx_timestamp(rx_status)) + /* time when timestamp field was received */ + t_r = ieee80211_calculate_rx_timestamp(local, rx_status, + 24 + 12 + + elems->total_len + + FCS_LEN, + 24); /* Timing offset calculation (see 13.13.2.2.2) */ t_t = le64_to_cpu(mgmt->u.beacon.timestamp); @@ -225,58 +195,20 @@ static void mesh_sync_offset_adjust_tbtt(struct ieee80211_sub_if_data *sdata) ifmsh->sync_offset_clockdrift_max); set_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags); + + ifmsh->adjusting_tbtt = true; } else { msync_dbg(sdata, "TBTT : max clockdrift=%lld; too small to adjust\n", (long long)ifmsh->sync_offset_clockdrift_max); ifmsh->sync_offset_clockdrift_max = 0; + + ifmsh->adjusting_tbtt = false; } spin_unlock_bh(&ifmsh->sync_offset_lock); } -static const u8 *mesh_get_vendor_oui(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; - u8 offset; - - if (!ifmsh->ie || !ifmsh->ie_len) - return NULL; - - offset = ieee80211_ie_split_vendor(ifmsh->ie, - ifmsh->ie_len, 0); - - if (!offset) - return NULL; - - return ifmsh->ie + offset + 2; -} - -static void mesh_sync_vendor_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, - u16 stype, - struct ieee80211_mgmt *mgmt, - struct ieee802_11_elems *elems, - struct ieee80211_rx_status *rx_status) -{ - const u8 *oui; - - WARN_ON(sdata->u.mesh.mesh_sp_id != IEEE80211_SYNC_METHOD_VENDOR); - msync_dbg(sdata, "called mesh_sync_vendor_rx_bcn_presp\n"); - oui = mesh_get_vendor_oui(sdata); - /* here you would implement the vendor offset tracking for this oui */ -} - -static void mesh_sync_vendor_adjust_tbtt(struct ieee80211_sub_if_data *sdata) -{ - const u8 *oui; - - WARN_ON(sdata->u.mesh.mesh_sp_id != IEEE80211_SYNC_METHOD_VENDOR); - msync_dbg(sdata, "called mesh_sync_vendor_adjust_tbtt\n"); - oui = mesh_get_vendor_oui(sdata); - /* here you would implement the vendor tsf adjustment for this oui */ -} - -/* global variable */ -static struct sync_method sync_methods[] = { +static const struct sync_method sync_methods[] = { { .method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET, .ops = { @@ -284,18 +216,11 @@ static struct sync_method sync_methods[] = { .adjust_tbtt = &mesh_sync_offset_adjust_tbtt, } }, - { - .method = IEEE80211_SYNC_METHOD_VENDOR, - .ops = { - .rx_bcn_presp = &mesh_sync_vendor_rx_bcn_presp, - .adjust_tbtt = &mesh_sync_vendor_adjust_tbtt, - } - }, }; -struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method) +const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method) { - struct ieee80211_mesh_sync_ops *ops = NULL; + const struct ieee80211_mesh_sync_ops *ops = NULL; u8 i; for (i = 0 ; i < ARRAY_SIZE(sync_methods); ++i) { diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 1b7eed252fe9..7753a9ca98a6 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -178,20 +178,32 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *chan; struct sta_info *sta; u32 changed = 0; u16 ht_opmode; bool disable_40 = false; - sband = local->hw.wiphy->bands[local->oper_channel->band]; + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return 0; + } + chan = chanctx_conf->def.chan; + rcu_read_unlock(); + sband = local->hw.wiphy->bands[chan->band]; - switch (sdata->vif.bss_conf.channel_type) { - case NL80211_CHAN_HT40PLUS: - if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40PLUS) + switch (sdata->vif.bss_conf.chandef.width) { + 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) disable_40 = true; - break; - case NL80211_CHAN_HT40MINUS: - if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40MINUS) + if (sdata->vif.bss_conf.chandef.chan->center_freq < + sdata->vif.bss_conf.chandef.center_freq1 && + chan->flags & IEEE80211_CHAN_NO_HT40MINUS) disable_40 = true; break; default: @@ -342,8 +354,18 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, /* determine capability flags */ cap = vht_cap.cap; + if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_80P80MHZ) { + cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; + cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; + } + + if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_160MHZ) { + cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160; + cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; + } + /* reserve and fill IE */ - pos = skb_put(skb, sizeof(struct ieee80211_vht_capabilities) + 2); + pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); } @@ -359,11 +381,21 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) int i, count, rates_len, supp_rates_len; u16 capab; struct ieee80211_supported_band *sband; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *chan; u32 rates = 0; lockdep_assert_held(&ifmgd->mtx); - sband = local->hw.wiphy->bands[local->oper_channel->band]; + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return; + } + chan = chanctx_conf->def.chan; + rcu_read_unlock(); + sband = local->hw.wiphy->bands[chan->band]; if (assoc_data->supp_rates_len) { /* @@ -392,7 +424,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) 4 + /* power capability */ 2 + 2 * sband->n_channels + /* supported channels */ 2 + sizeof(struct ieee80211_ht_cap) + /* HT */ - 2 + sizeof(struct ieee80211_vht_capabilities) + /* VHT */ + 2 + sizeof(struct ieee80211_vht_cap) + /* VHT */ assoc_data->ie_len + /* extra IEs */ 9, /* WMM */ GFP_KERNEL); @@ -485,7 +517,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) *pos++ = WLAN_EID_PWR_CAPABILITY; *pos++ = 2; *pos++ = 0; /* min tx power */ - *pos++ = local->oper_channel->max_power; /* max tx power */ + *pos++ = chan->max_power; /* max tx power */ /* 2. supported channels */ /* TODO: get this in reg domain format */ @@ -521,9 +553,13 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) offset = noffset; } - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) + if (WARN_ON_ONCE((ifmgd->flags & IEEE80211_STA_DISABLE_HT) && + !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))) + ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; + + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param, - sband, local->oper_channel, ifmgd->ap_smps); + sband, chan, sdata->smps_mode); if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) ieee80211_add_vht_ie(sdata, skb, sband); @@ -657,18 +693,18 @@ static void ieee80211_chswitch_work(struct work_struct *work) if (!ifmgd->associated) goto out; - sdata->local->oper_channel = sdata->local->csa_channel; + sdata->local->_oper_channel = sdata->local->csa_channel; if (!sdata->local->ops->channel_switch) { /* call "hw_config" only if doing sw channel switch */ ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL); } else { /* update the device channel directly */ - sdata->local->hw.conf.channel = sdata->local->oper_channel; + sdata->local->hw.conf.channel = sdata->local->_oper_channel; } /* XXX: shouldn't really modify cfg80211-owned data! */ - ifmgd->associated->channel = sdata->local->oper_channel; + ifmgd->associated->channel = sdata->local->_oper_channel; /* XXX: wait for a beacon first? */ ieee80211_wake_queues_by_reason(&sdata->local->hw, @@ -680,11 +716,8 @@ static void ieee80211_chswitch_work(struct work_struct *work) void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) { - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_managed *ifmgd; - - sdata = vif_to_sdata(vif); - ifmgd = &sdata->u.mgd; + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; trace_api_chswitch_done(sdata, success); if (!success) { @@ -723,6 +756,7 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num, cbss->channel->band); + struct ieee80211_chanctx *chanctx; ASSERT_MGD_MTX(ifmgd); @@ -748,10 +782,35 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, return; } - sdata->local->csa_channel = new_ch; - ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED; + if (sdata->local->use_chanctx) { + sdata_info(sdata, + "not handling channel switch with channel contexts\n"); + ieee80211_queue_work(&sdata->local->hw, + &ifmgd->csa_connection_drop_work); + return; + } + + mutex_lock(&sdata->local->chanctx_mtx); + if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) { + mutex_unlock(&sdata->local->chanctx_mtx); + return; + } + chanctx = container_of(rcu_access_pointer(sdata->vif.chanctx_conf), + struct ieee80211_chanctx, conf); + if (chanctx->refcount > 1) { + sdata_info(sdata, + "channel switch with multiple interfaces on the same channel, disconnecting\n"); + ieee80211_queue_work(&sdata->local->hw, + &ifmgd->csa_connection_drop_work); + mutex_unlock(&sdata->local->chanctx_mtx); + return; + } + mutex_unlock(&sdata->local->chanctx_mtx); + + sdata->local->csa_channel = new_ch; + if (sw_elem->mode) ieee80211_stop_queues_by_reason(&sdata->local->hw, IEEE80211_QUEUE_STOP_REASON_CSA); @@ -778,10 +837,10 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, cbss->beacon_interval)); } -static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, - struct ieee80211_channel *channel, - const u8 *country_ie, u8 country_ie_len, - const u8 *pwr_constr_elem) +static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *channel, + const u8 *country_ie, u8 country_ie_len, + const u8 *pwr_constr_elem) { struct ieee80211_country_ie_triplet *triplet; int chan = ieee80211_frequency_to_channel(channel->center_freq); @@ -790,7 +849,7 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, /* Invalid IE */ if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) - return; + return 0; triplet = (void *)(country_ie + 3); country_ie_len -= 3; @@ -831,19 +890,21 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, } if (!have_chan_pwr) - return; + return 0; new_ap_level = max_t(int, 0, chan_pwr - *pwr_constr_elem); - if (sdata->local->ap_power_level == new_ap_level) - return; + if (sdata->ap_power_level == new_ap_level) + return 0; sdata_info(sdata, "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n", new_ap_level, chan_pwr, *pwr_constr_elem, sdata->u.mgd.bssid); - sdata->local->ap_power_level = new_ap_level; - ieee80211_hw_config(sdata->local, 0); + sdata->ap_power_level = new_ap_level; + if (__ieee80211_recalc_txpower(sdata)) + return BSS_CHANGED_TXPOWER; + return 0; } void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif) @@ -1280,7 +1341,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, } use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); - if (sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) + if (ieee80211_get_sdata_band(sdata) == IEEE80211_BAND_5GHZ) use_short_slot = true; if (use_protection != bss_conf->use_cts_prot) { @@ -1321,6 +1382,29 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE; + if (sdata->vif.p2p) { + const struct cfg80211_bss_ies *ies; + + rcu_read_lock(); + ies = rcu_dereference(cbss->ies); + if (ies) { + u8 noa[2]; + int ret; + + ret = cfg80211_get_p2p_attr( + ies->data, ies->len, + IEEE80211_P2P_ATTR_ABSENCE_NOTICE, + noa, sizeof(noa)); + if (ret >= 2) { + bss_conf->p2p_oppps = noa[1] & 0x80; + bss_conf->p2p_ctwindow = noa[1] & 0x7f; + bss_info_changed |= BSS_CHANGED_P2P_PS; + sdata->u.mgd.p2p_noa_index = noa[0]; + } + } + rcu_read_unlock(); + } + /* just to be sure */ ieee80211_stop_poll(sdata); @@ -1350,7 +1434,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_recalc_ps(local, -1); mutex_unlock(&local->iflist_mtx); - ieee80211_recalc_smps(local); + ieee80211_recalc_smps(sdata); ieee80211_recalc_ps_vif(sdata); netif_tx_start_all_queues(sdata->dev); @@ -1443,11 +1527,14 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_ASSOC; sdata->vif.bss_conf.assoc = false; + sdata->vif.bss_conf.p2p_ctwindow = 0; + sdata->vif.bss_conf.p2p_oppps = false; + /* on the next assoc, re-program HT parameters */ memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); - local->ap_power_level = 0; + sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL; del_timer_sync(&local->dynamic_ps_timer); cancel_work_sync(&local->dynamic_ps_enable_work); @@ -1465,10 +1552,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; ieee80211_bss_info_change_notify(sdata, changed); - /* channel(_type) changes are handled by ieee80211_hw_config */ - WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT)); - ieee80211_hw_config(local, 0); - /* disassociated - set to defaults now */ ieee80211_set_wmm_default(sdata, false); @@ -1478,6 +1561,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, del_timer_sync(&sdata->u.mgd.chswitch_timer); sdata->u.mgd.timers_running = 0; + + ifmgd->flags = 0; + ieee80211_vif_release_channel(sdata); } void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, @@ -1581,6 +1667,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) } else { int ssid_len; + rcu_read_lock(); ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID); if (WARN_ON_ONCE(ssid == NULL)) ssid_len = 0; @@ -1589,7 +1676,8 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid_len, NULL, 0, (u32) -1, true, false, - ifmgd->associated->channel); + ifmgd->associated->channel, false); + rcu_read_unlock(); } ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); @@ -1685,6 +1773,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, else return NULL; + rcu_read_lock(); ssid = ieee80211_bss_get_ie(cbss, WLAN_EID_SSID); if (WARN_ON_ONCE(ssid == NULL)) ssid_len = 0; @@ -1692,10 +1781,10 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, ssid_len = ssid[1]; skb = ieee80211_build_probe_req(sdata, cbss->bssid, - (u32) -1, - sdata->local->oper_channel, + (u32) -1, cbss->channel, ssid + 2, ssid_len, NULL, 0, true); + rcu_read_unlock(); return skb; } @@ -1804,6 +1893,8 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, memset(sdata->u.mgd.bssid, 0, ETH_ALEN); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); + sdata->u.mgd.flags = 0; + ieee80211_vif_release_channel(sdata); } cfg80211_put_bss(auth_data->bss); @@ -1824,7 +1915,7 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, return; auth_data->expected_transaction = 4; drv_mgd_prepare_tx(sdata->local, sdata); - ieee80211_send_auth(sdata, 3, auth_data->algorithm, + 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, @@ -1858,8 +1949,13 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, status_code = le16_to_cpu(mgmt->u.auth.status_code); if (auth_alg != ifmgd->auth_data->algorithm || - auth_transaction != ifmgd->auth_data->expected_transaction) + auth_transaction != ifmgd->auth_data->expected_transaction) { + sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n", + mgmt->sa, auth_alg, ifmgd->auth_data->algorithm, + auth_transaction, + ifmgd->auth_data->expected_transaction); return RX_MGMT_NONE; + } if (status_code != WLAN_STATUS_SUCCESS) { sdata_info(sdata, "%pM denied authentication (status %d)\n", @@ -1872,6 +1968,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, case WLAN_AUTH_OPEN: case WLAN_AUTH_LEAP: case WLAN_AUTH_FT: + case WLAN_AUTH_SAE: break; case WLAN_AUTH_SHARED_KEY: if (ifmgd->auth_data->expected_transaction != 4) { @@ -1891,6 +1988,15 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; run_again(ifmgd, ifmgd->auth_data->timeout); + if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && + ifmgd->auth_data->expected_transaction != 2) { + /* + * Report auth frame to user space for processing since another + * round of Authentication frames is still needed. + */ + return RX_MGMT_CFG80211_RX_AUTH; + } + /* move station state to auth */ mutex_lock(&sdata->local->sta_mtx); sta = sta_info_get(sdata, bssid); @@ -2030,6 +2136,8 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, memset(sdata->u.mgd.bssid, 0, ETH_ALEN); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); + sdata->u.mgd.flags = 0; + ieee80211_vif_release_channel(sdata); } kfree(assoc_data); @@ -2091,15 +2199,20 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, return false; } - sband = local->hw.wiphy->bands[local->oper_channel->band]; + sband = local->hw.wiphy->bands[ieee80211_get_sdata_band(sdata)]; - if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) + if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems.ht_cap_elem, &sta->sta.ht_cap); sta->supports_40mhz = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; + if (elems.vht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) + ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, + elems.vht_cap_elem, + &sta->sta.vht_cap); + rate_control_rate_init(sta); if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) @@ -2140,7 +2253,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_QOS; if (elems.ht_operation && elems.wmm_param && - !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) + !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) changed |= ieee80211_config_ht_tx(sdata, elems.ht_operation, cbss->bssid, false); @@ -2247,9 +2360,9 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, return RX_MGMT_CFG80211_RX_ASSOC; } + static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len, + struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status, struct ieee802_11_elems *elems, bool beacon) @@ -2369,8 +2482,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, size_t baselen; struct ieee802_11_elems elems; struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *chan; u32 changed = 0; - bool erp_valid, directed_tim = false; + bool erp_valid; u8 erp_value = 0; u32 ncrc; u8 *bssid; @@ -2382,8 +2497,19 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (baselen > len) return; - if (rx_status->freq != local->oper_channel->center_freq) + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) { + rcu_read_unlock(); + return; + } + + if (rx_status->freq != chanctx_conf->def.chan->center_freq) { + rcu_read_unlock(); return; + } + chan = chanctx_conf->def.chan; + rcu_read_unlock(); if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon && ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) { @@ -2490,11 +2616,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, len - baselen, &elems, care_about_ies, ncrc); - if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) - directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len, - ifmgd->aid); - if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) { + bool directed_tim = ieee80211_check_tim(elems.tim, + elems.tim_len, + ifmgd->aid); if (directed_tim) { if (local->hw.conf.dynamic_ps_timeout > 0) { if (local->hw.conf.flags & IEEE80211_CONF_PS) { @@ -2519,6 +2644,27 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } } + if (sdata->vif.p2p) { + u8 noa[2]; + int ret; + + ret = cfg80211_get_p2p_attr(mgmt->u.beacon.variable, + len - baselen, + IEEE80211_P2P_ATTR_ABSENCE_NOTICE, + noa, sizeof(noa)); + if (ret >= 2 && sdata->u.mgd.p2p_noa_index != noa[0]) { + bss_conf->p2p_oppps = noa[1] & 0x80; + bss_conf->p2p_ctwindow = noa[1] & 0x7f; + changed |= BSS_CHANGED_P2P_PS; + sdata->u.mgd.p2p_noa_index = noa[0]; + /* + * make sure we update all information, the CRC + * mechanism doesn't look at P2P attributes. + */ + ifmgd->beacon_crc_valid = false; + } + } + if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid) return; ifmgd->beacon_crc = ncrc; @@ -2543,22 +2689,17 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (elems.ht_cap_elem && elems.ht_operation && elems.wmm_param && - !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) { - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->oper_channel->band]; - + !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) changed |= ieee80211_config_ht_tx(sdata, elems.ht_operation, bssid, true); - } if (elems.country_elem && elems.pwr_constr_elem && mgmt->u.probe_resp.capab_info & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT)) - ieee80211_handle_pwr_constr(sdata, local->oper_channel, - elems.country_elem, - elems.country_elem_len, - elems.pwr_constr_elem); + changed |= ieee80211_handle_pwr_constr(sdata, chan, + elems.country_elem, + elems.country_elem_len, + elems.pwr_constr_elem); ieee80211_bss_info_change_notify(sdata, changed); } @@ -2703,13 +2844,23 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) drv_mgd_prepare_tx(local, sdata); if (auth_data->bss->proberesp_ies) { + u16 trans = 1; + u16 status = 0; + sdata_info(sdata, "send auth to %pM (try %d/%d)\n", auth_data->bss->bssid, auth_data->tries, IEEE80211_AUTH_MAX_TRIES); auth_data->expected_transaction = 2; - ieee80211_send_auth(sdata, 1, auth_data->algorithm, - auth_data->ie, auth_data->ie_len, + + if (auth_data->algorithm == WLAN_AUTH_SAE) { + trans = auth_data->sae_trans; + status = auth_data->sae_status; + auth_data->expected_transaction = trans; + } + + 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); } else { @@ -2719,16 +2870,20 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) auth_data->bss->bssid, auth_data->tries, IEEE80211_AUTH_MAX_TRIES); + rcu_read_lock(); ssidie = ieee80211_bss_get_ie(auth_data->bss, WLAN_EID_SSID); - if (!ssidie) + if (!ssidie) { + rcu_read_unlock(); return -EINVAL; + } /* * Direct probe is sent to broadcast address as some APs * 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, - auth_data->bss->channel); + auth_data->bss->channel, false); + rcu_read_unlock(); } auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; @@ -3058,90 +3213,313 @@ int ieee80211_max_network_latency(struct notifier_block *nb, return 0; } +static u32 chandef_downgrade(struct cfg80211_chan_def *c) +{ + u32 ret; + int tmp; + + switch (c->width) { + case NL80211_CHAN_WIDTH_20: + c->width = NL80211_CHAN_WIDTH_20_NOHT; + ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; + break; + case NL80211_CHAN_WIDTH_40: + c->width = NL80211_CHAN_WIDTH_20; + c->center_freq1 = c->chan->center_freq; + ret = IEEE80211_STA_DISABLE_40MHZ | + IEEE80211_STA_DISABLE_VHT; + break; + case NL80211_CHAN_WIDTH_80: + tmp = (30 + c->chan->center_freq - c->center_freq1)/20; + /* n_P40 */ + tmp /= 2; + /* freq_P40 */ + c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; + c->width = NL80211_CHAN_WIDTH_40; + ret = IEEE80211_STA_DISABLE_VHT; + break; + case NL80211_CHAN_WIDTH_80P80: + c->center_freq2 = 0; + c->width = NL80211_CHAN_WIDTH_80; + ret = IEEE80211_STA_DISABLE_80P80MHZ | + IEEE80211_STA_DISABLE_160MHZ; + break; + case NL80211_CHAN_WIDTH_160: + /* n_P20 */ + tmp = (70 + c->chan->center_freq - c->center_freq1)/20; + /* n_P80 */ + tmp /= 4; + c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; + c->width = NL80211_CHAN_WIDTH_80; + ret = IEEE80211_STA_DISABLE_80P80MHZ | + IEEE80211_STA_DISABLE_160MHZ; + break; + default: + case NL80211_CHAN_WIDTH_20_NOHT: + WARN_ON_ONCE(1); + c->width = NL80211_CHAN_WIDTH_20_NOHT; + ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; + break; + } + + WARN_ON_ONCE(!cfg80211_chandef_valid(c)); + + return ret; +} + +static u32 +ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + struct ieee80211_channel *channel, + const struct ieee80211_ht_operation *ht_oper, + const struct ieee80211_vht_operation *vht_oper, + struct cfg80211_chan_def *chandef) +{ + struct cfg80211_chan_def vht_chandef; + u32 ht_cfreq, ret; + + chandef->chan = channel; + chandef->width = NL80211_CHAN_WIDTH_20_NOHT; + chandef->center_freq1 = channel->center_freq; + chandef->center_freq2 = 0; + + if (!ht_oper || !sband->ht_cap.ht_supported) { + ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; + goto out; + } + + chandef->width = NL80211_CHAN_WIDTH_20; + + ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, + channel->band); + /* check that channel matches the right operating channel */ + if (channel->center_freq != ht_cfreq) { + /* + * It's possible that some APs are confused here; + * Netgear WNDR3700 sometimes reports 4 higher than + * the actual channel in association responses, but + * since we look at probe response/beacon data here + * it should be OK. + */ + sdata_info(sdata, + "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", + channel->center_freq, ht_cfreq, + ht_oper->primary_chan, channel->band); + ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; + goto out; + } + + /* check 40 MHz support, if we have it */ + if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { + switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + chandef->width = NL80211_CHAN_WIDTH_40; + chandef->center_freq1 += 10; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + chandef->width = NL80211_CHAN_WIDTH_40; + chandef->center_freq1 -= 10; + break; + } + } else { + /* 40 MHz (and 80 MHz) must be supported for VHT */ + ret = IEEE80211_STA_DISABLE_VHT; + goto out; + } + + if (!vht_oper || !sband->vht_cap.vht_supported) { + ret = IEEE80211_STA_DISABLE_VHT; + goto out; + } + + vht_chandef.chan = channel; + vht_chandef.center_freq1 = + ieee80211_channel_to_frequency(vht_oper->center_freq_seg1_idx, + channel->band); + vht_chandef.center_freq2 = 0; + + if (vht_oper->center_freq_seg2_idx) + vht_chandef.center_freq2 = + ieee80211_channel_to_frequency( + vht_oper->center_freq_seg2_idx, + channel->band); + + switch (vht_oper->chan_width) { + case IEEE80211_VHT_CHANWIDTH_USE_HT: + vht_chandef.width = chandef->width; + break; + case IEEE80211_VHT_CHANWIDTH_80MHZ: + vht_chandef.width = NL80211_CHAN_WIDTH_80; + break; + case IEEE80211_VHT_CHANWIDTH_160MHZ: + vht_chandef.width = NL80211_CHAN_WIDTH_160; + break; + case IEEE80211_VHT_CHANWIDTH_80P80MHZ: + vht_chandef.width = NL80211_CHAN_WIDTH_80P80; + break; + default: + sdata_info(sdata, + "AP VHT operation IE has invalid channel width (%d), disable VHT\n", + vht_oper->chan_width); + ret = IEEE80211_STA_DISABLE_VHT; + goto out; + } + + if (!cfg80211_chandef_valid(&vht_chandef)) { + sdata_info(sdata, + "AP VHT information is invalid, disable VHT\n"); + ret = IEEE80211_STA_DISABLE_VHT; + goto out; + } + + if (cfg80211_chandef_identical(chandef, &vht_chandef)) { + ret = 0; + goto out; + } + + if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) { + sdata_info(sdata, + "AP VHT information doesn't match HT, disable VHT\n"); + ret = IEEE80211_STA_DISABLE_VHT; + goto out; + } + + *chandef = vht_chandef; + + ret = 0; + + while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, + IEEE80211_CHAN_DISABLED)) { + if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { + ret = IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_VHT; + goto out; + } + + ret = chandef_downgrade(chandef); + } + + if (chandef->width != vht_chandef.width) + sdata_info(sdata, + "local regulatory prevented using AP HT/VHT configuration, downgraded\n"); + +out: + WARN_ON_ONCE(!cfg80211_chandef_valid(chandef)); + return ret; +} + +static u8 ieee80211_ht_vht_rx_chains(struct ieee80211_sub_if_data *sdata, + struct cfg80211_bss *cbss) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + const u8 *ht_cap_ie, *vht_cap_ie; + const struct ieee80211_ht_cap *ht_cap; + const struct ieee80211_vht_cap *vht_cap; + u8 chains = 1; + + if (ifmgd->flags & IEEE80211_STA_DISABLE_HT) + return chains; + + ht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_CAPABILITY); + if (ht_cap_ie && ht_cap_ie[1] >= sizeof(*ht_cap)) { + ht_cap = (void *)(ht_cap_ie + 2); + chains = ieee80211_mcs_to_chains(&ht_cap->mcs); + /* + * TODO: use "Tx Maximum Number Spatial Streams Supported" and + * "Tx Unequal Modulation Supported" fields. + */ + } + + if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT) + return chains; + + vht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_CAPABILITY); + if (vht_cap_ie && vht_cap_ie[1] >= sizeof(*vht_cap)) { + u8 nss; + u16 tx_mcs_map; + + vht_cap = (void *)(vht_cap_ie + 2); + tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map); + for (nss = 8; nss > 0; nss--) { + if (((tx_mcs_map >> (2 * (nss - 1))) & 3) != + IEEE80211_VHT_MCS_NOT_SUPPORTED) + break; + } + /* TODO: use "Tx Highest Supported Long GI Data Rate" field? */ + chains = max(chains, nss); + } + + return chains; +} + static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, struct cfg80211_bss *cbss) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - int ht_cfreq; - enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; - const u8 *ht_oper_ie; const struct ieee80211_ht_operation *ht_oper = NULL; + const struct ieee80211_vht_operation *vht_oper = NULL; struct ieee80211_supported_band *sband; + struct cfg80211_chan_def chandef; + int ret; sband = local->hw.wiphy->bands[cbss->channel->band]; - ifmgd->flags &= ~IEEE80211_STA_DISABLE_40MHZ; + ifmgd->flags &= ~(IEEE80211_STA_DISABLE_40MHZ | + IEEE80211_STA_DISABLE_80P80MHZ | + IEEE80211_STA_DISABLE_160MHZ); + + rcu_read_lock(); + + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && + sband->ht_cap.ht_supported) { + const u8 *ht_oper_ie; - if (sband->ht_cap.ht_supported) { - ht_oper_ie = cfg80211_find_ie(WLAN_EID_HT_OPERATION, - cbss->information_elements, - cbss->len_information_elements); + ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION); if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper)) ht_oper = (void *)(ht_oper_ie + 2); } - if (ht_oper) { - ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, - cbss->channel->band); - /* check that channel matches the right operating channel */ - if (cbss->channel->center_freq != ht_cfreq) { - /* - * It's possible that some APs are confused here; - * Netgear WNDR3700 sometimes reports 4 higher than - * the actual channel in association responses, but - * since we look at probe response/beacon data here - * it should be OK. - */ + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && + sband->vht_cap.vht_supported) { + const u8 *vht_oper_ie; + + vht_oper_ie = ieee80211_bss_get_ie(cbss, + WLAN_EID_VHT_OPERATION); + if (vht_oper_ie && vht_oper_ie[1] >= sizeof(*vht_oper)) + vht_oper = (void *)(vht_oper_ie + 2); + if (vht_oper && !ht_oper) { + vht_oper = NULL; sdata_info(sdata, - "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", - cbss->channel->center_freq, - ht_cfreq, ht_oper->primary_chan, - cbss->channel->band); - ht_oper = NULL; - } else { - channel_type = NL80211_CHAN_HT20; + "AP advertised VHT without HT, disabling both\n"); + sdata->flags |= IEEE80211_STA_DISABLE_HT; + sdata->flags |= IEEE80211_STA_DISABLE_VHT; } } - if (ht_oper && sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { - /* - * cfg80211 already verified that the channel itself can - * be used, but it didn't check that we can do the right - * HT type, so do that here as well. If HT40 isn't allowed - * on this channel, disable 40 MHz operation. - */ + ifmgd->flags |= ieee80211_determine_chantype(sdata, sband, + cbss->channel, + ht_oper, vht_oper, + &chandef); - switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { - case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: - if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40PLUS) - ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; - else - channel_type = NL80211_CHAN_HT40PLUS; - break; - case IEEE80211_HT_PARAM_CHA_SEC_BELOW: - if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40MINUS) - ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; - else - channel_type = NL80211_CHAN_HT40MINUS; - break; - } - } + sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss), + local->rx_chains); - if (!ieee80211_set_channel_type(local, sdata, channel_type)) { - /* can only fail due to HT40+/- mismatch */ - channel_type = NL80211_CHAN_HT20; - sdata_info(sdata, - "disabling 40 MHz due to multi-vif mismatch\n"); - ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; - WARN_ON(!ieee80211_set_channel_type(local, sdata, - channel_type)); - } + rcu_read_unlock(); - local->oper_channel = cbss->channel; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); + /* will change later if needed */ + sdata->smps_mode = IEEE80211_SMPS_OFF; - return 0; + /* + * If this fails (possibly due to channel context sharing + * on incompatible channels, e.g. 80+80 and 160 sharing the + * same control channel) try to use a smaller bandwidth. + */ + ret = ieee80211_vif_use_channel(sdata, &chandef, + IEEE80211_CHANCTX_SHARED); + while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) + ifmgd->flags |= chandef_downgrade(&chandef); + return ret; } static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, @@ -3211,7 +3589,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.basic_rates = basic_rates; /* cf. IEEE 802.11 9.2.12 */ - if (local->oper_channel->band == IEEE80211_BAND_2GHZ && + if (cbss->channel->band == IEEE80211_BAND_2GHZ && have_higher_than_11mbit) sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; else @@ -3273,19 +3651,33 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, case NL80211_AUTHTYPE_NETWORK_EAP: auth_alg = WLAN_AUTH_LEAP; break; + case NL80211_AUTHTYPE_SAE: + auth_alg = WLAN_AUTH_SAE; + break; default: return -EOPNOTSUPP; } - auth_data = kzalloc(sizeof(*auth_data) + req->ie_len, GFP_KERNEL); + auth_data = kzalloc(sizeof(*auth_data) + req->sae_data_len + + req->ie_len, GFP_KERNEL); if (!auth_data) return -ENOMEM; auth_data->bss = req->bss; + if (req->sae_data_len >= 4) { + __le16 *pos = (__le16 *) req->sae_data; + auth_data->sae_trans = le16_to_cpu(pos[0]); + auth_data->sae_status = le16_to_cpu(pos[1]); + memcpy(auth_data->data, req->sae_data + 4, + req->sae_data_len - 4); + auth_data->data_len += req->sae_data_len - 4; + } + if (req->ie && req->ie_len) { - memcpy(auth_data->ie, req->ie, req->ie_len); - auth_data->ie_len = req->ie_len; + memcpy(&auth_data->data[auth_data->data_len], + req->ie, req->ie_len); + auth_data->data_len += req->ie_len; } if (req->key && req->key_len) { @@ -3355,14 +3747,21 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, const u8 *ssidie, *ht_ie; int i, err; - ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID); - if (!ssidie) - return -EINVAL; - assoc_data = kzalloc(sizeof(*assoc_data) + req->ie_len, GFP_KERNEL); if (!assoc_data) return -ENOMEM; + rcu_read_lock(); + ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID); + if (!ssidie) { + rcu_read_unlock(); + kfree(assoc_data); + return -EINVAL; + } + memcpy(assoc_data->ssid, ssidie + 2, ssidie[1]); + assoc_data->ssid_len = ssidie[1]; + rcu_read_unlock(); + mutex_lock(&ifmgd->mtx); if (ifmgd->associated) @@ -3388,13 +3787,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, /* prepare assoc data */ - /* - * keep only the 40 MHz disable bit set as it might have - * been set during authentication already, all other bits - * should be reset for a new connection - */ - ifmgd->flags &= IEEE80211_STA_DISABLE_40MHZ; - ifmgd->beacon_crc_valid = false; /* @@ -3408,7 +3800,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { - ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + ifmgd->flags |= IEEE80211_STA_DISABLE_HT; ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; netdev_info(sdata->dev, "disabling HT/VHT due to WEP/TKIP use\n"); @@ -3416,7 +3808,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, } if (req->flags & ASSOC_REQ_DISABLE_HT) { - ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + ifmgd->flags |= IEEE80211_STA_DISABLE_HT; ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; } @@ -3424,7 +3816,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, sband = local->hw.wiphy->bands[req->bss->channel->band]; if (!sband->ht_cap.ht_supported || local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) { - ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + ifmgd->flags |= IEEE80211_STA_DISABLE_HT; if (!bss->wmm_used) netdev_info(sdata->dev, "disabling HT as WMM/QoS is not supported by the AP\n"); @@ -3452,11 +3844,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) { if (ifmgd->powersave) - ifmgd->ap_smps = IEEE80211_SMPS_DYNAMIC; + sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; else - ifmgd->ap_smps = IEEE80211_SMPS_OFF; + sdata->smps_mode = IEEE80211_SMPS_OFF; } else - ifmgd->ap_smps = ifmgd->req_smps; + sdata->smps_mode = ifmgd->req_smps; assoc_data->capability = req->bss->capability; assoc_data->wmm = bss->wmm_used && @@ -3464,12 +3856,14 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, assoc_data->supp_rates = bss->supp_rates; assoc_data->supp_rates_len = bss->supp_rates_len; + rcu_read_lock(); ht_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION); if (ht_ie && ht_ie[1] >= sizeof(struct ieee80211_ht_operation)) assoc_data->ap_ht_param = ((struct ieee80211_ht_operation *)(ht_ie + 2))->ht_param; else - ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + ifmgd->flags |= IEEE80211_STA_DISABLE_HT; + rcu_read_unlock(); if (bss->wmm_used && bss->uapsd_supported && (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) { @@ -3480,9 +3874,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; } - memcpy(assoc_data->ssid, ssidie + 2, ssidie[1]); - assoc_data->ssid_len = ssidie[1]; - if (req->prev_bssid) memcpy(assoc_data->prev_bssid, req->prev_bssid, ETH_ALEN); @@ -3560,40 +3951,44 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; bool tx = !req->local_state_change; + bool sent_frame = false; mutex_lock(&ifmgd->mtx); - if (ifmgd->auth_data) { - ieee80211_destroy_auth_data(sdata, false); - mutex_unlock(&ifmgd->mtx); - return 0; - } - sdata_info(sdata, "deauthenticating from %pM by local choice (reason=%d)\n", req->bssid, req->reason_code); - if (ifmgd->associated && - ether_addr_equal(ifmgd->associated->bssid, req->bssid)) { - ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, - req->reason_code, tx, frame_buf); - } else { + if (ifmgd->auth_data) { drv_mgd_prepare_tx(sdata->local, sdata); ieee80211_send_deauth_disassoc(sdata, req->bssid, IEEE80211_STYPE_DEAUTH, req->reason_code, tx, frame_buf); + ieee80211_destroy_auth_data(sdata, false); + mutex_unlock(&ifmgd->mtx); + + sent_frame = tx; + goto out; } + if (ifmgd->associated && + ether_addr_equal(ifmgd->associated->bssid, req->bssid)) { + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + req->reason_code, tx, frame_buf); + sent_frame = tx; + } mutex_unlock(&ifmgd->mtx); - __cfg80211_send_deauth(sdata->dev, frame_buf, - IEEE80211_DEAUTH_FRAME_LEN); - + 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); + return 0; } diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 83608ac16780..a5379aea7d09 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -107,6 +107,9 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, { struct ieee80211_sub_if_data *sdata; + if (WARN_ON(local->use_chanctx)) + return; + /* * notify the AP about us leaving the channel and stop all * STA interfaces. @@ -145,6 +148,9 @@ void ieee80211_offchannel_return(struct ieee80211_local *local, { struct ieee80211_sub_if_data *sdata; + if (WARN_ON(local->use_chanctx)) + return; + mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) @@ -193,13 +199,14 @@ void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc) if (roc->mgmt_tx_cookie) { if (!WARN_ON(!roc->frame)) { - ieee80211_tx_skb(roc->sdata, roc->frame); + ieee80211_tx_skb_tid_band(roc->sdata, roc->frame, 7, + roc->chan->band); roc->frame = NULL; } } else { - cfg80211_ready_on_channel(&roc->sdata->wdev, (unsigned long)roc, - roc->chan, roc->chan_type, - roc->req_duration, GFP_KERNEL); + cfg80211_ready_on_channel(&roc->sdata->wdev, roc->cookie, + roc->chan, roc->req_duration, + GFP_KERNEL); } roc->notified = true; @@ -276,8 +283,7 @@ void ieee80211_start_next_roc(struct ieee80211_local *local) if (!duration) duration = 10; - ret = drv_remain_on_channel(local, roc->chan, - roc->chan_type, + ret = drv_remain_on_channel(local, roc->sdata, roc->chan, duration); roc->started = true; @@ -313,8 +319,7 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc) if (!roc->mgmt_tx_cookie) cfg80211_remain_on_channel_expired(&roc->sdata->wdev, - (unsigned long)roc, - roc->chan, roc->chan_type, + roc->cookie, roc->chan, GFP_KERNEL); list_for_each_entry_safe(dep, tmp, &roc->dependents, list) @@ -353,7 +358,6 @@ void ieee80211_sw_roc_work(struct work_struct *work) ieee80211_recalc_idle(local); local->tmp_channel = roc->chan; - local->tmp_channel_type = roc->chan_type; ieee80211_hw_config(local, 0); /* tell userspace or send frame */ @@ -458,8 +462,6 @@ void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) list_move_tail(&roc->list, &tmp_list); roc->abort = true; } - - ieee80211_start_next_roc(local); mutex_unlock(&local->mtx); list_for_each_entry_safe(roc, tmp, &tmp_list, list) { diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 5c572e7a1a71..79a48f37d409 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -33,6 +33,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; struct sta_info *sta; + struct ieee80211_chanctx *ctx; if (!local->open_count) goto suspend; @@ -135,12 +136,55 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); + if (sdata->vif.type == NL80211_IFTYPE_AP && + rcu_access_pointer(sdata->u.ap.beacon)) + drv_stop_ap(local, sdata); + + if (local->use_chanctx) { + struct ieee80211_chanctx_conf *conf; + + mutex_lock(&local->chanctx_mtx); + conf = rcu_dereference_protected( + sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (conf) { + ctx = container_of(conf, + struct ieee80211_chanctx, + conf); + drv_unassign_vif_chanctx(local, sdata, ctx); + } + + mutex_unlock(&local->chanctx_mtx); + } drv_remove_interface(local, sdata); } sdata = rtnl_dereference(local->monitor_sdata); - if (sdata) + if (sdata) { + if (local->use_chanctx) { + struct ieee80211_chanctx_conf *conf; + + mutex_lock(&local->chanctx_mtx); + conf = rcu_dereference_protected( + sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (conf) { + ctx = container_of(conf, + struct ieee80211_chanctx, + conf); + drv_unassign_vif_chanctx(local, sdata, ctx); + } + + mutex_unlock(&local->chanctx_mtx); + } + drv_remove_interface(local, sdata); + } + + mutex_lock(&local->chanctx_mtx); + list_for_each_entry(ctx, &local->chanctx_list, list) + drv_remove_chanctx(local, ctx); + mutex_unlock(&local->chanctx_mtx); /* stop hardware - this must stop RX */ if (local->open_count) diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 3313c117b322..dd88381c53b7 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -391,7 +391,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate, return; /* if HT BSS, and we handle a data frame, also try HT rates */ - if (txrc->bss_conf->channel_type == NL80211_CHAN_NO_HT) + if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return; fc = hdr->frame_control; @@ -408,8 +408,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate, alt_rate.flags |= IEEE80211_TX_RC_MCS; - if ((txrc->bss_conf->channel_type == NL80211_CHAN_HT40MINUS) || - (txrc->bss_conf->channel_type == NL80211_CHAN_HT40PLUS)) + if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_40) alt_rate.flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; if (rate_idx_match_mcs_mask(&alt_rate, mcs_mask)) { diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index 10de668eb9f6..301386dabf88 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -52,11 +52,21 @@ static inline void rate_control_rate_init(struct sta_info *sta) struct ieee80211_sta *ista = &sta->sta; void *priv_sta = sta->rate_ctrl_priv; struct ieee80211_supported_band *sband; + struct ieee80211_chanctx_conf *chanctx_conf; if (!ref) return; - sband = local->hw.wiphy->bands[local->oper_channel->band]; + rcu_read_lock(); + + chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return; + } + + sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band]; + rcu_read_unlock(); ref->ops->rate_init(ref->priv, sband, ista, priv_sta); set_sta_flag(sta, WLAN_STA_RATE_CONTROL); diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 79633ae06fd6..8c5acdc06226 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -154,6 +154,7 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb) { + struct minstrel_priv *mp = priv; struct minstrel_sta_info *mi = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *ar = info->status.rates; @@ -181,6 +182,10 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, if (mi->sample_deferred > 0) mi->sample_deferred--; + + if (time_after(jiffies, mi->stats_update + + (mp->update_interval * HZ) / 1000)) + minstrel_update_stats(mp, mi); } @@ -235,10 +240,6 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta, mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot; - if (time_after(jiffies, mi->stats_update + (mp->update_interval * - HZ) / 1000)) - minstrel_update_stats(mp, mi); - ndx = mi->max_tp_rate; if (mrr) diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index fb1d4aa65e8c..9f9c453bc45d 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -389,9 +389,9 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, struct ieee80211_tx_rate *ar = info->status.rates; struct minstrel_rate_stats *rate, *rate2; struct minstrel_priv *mp = priv; - bool last = false; + bool last; int group; - int i = 0; + int i; if (!msp->is_ht) return mac80211_minstrel.tx_status(priv, sband, sta, &msp->legacy, skb); @@ -419,13 +419,11 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) mi->sample_packets += info->status.ampdu_len; + last = !minstrel_ht_txstat_valid(&ar[0]); for (i = 0; !last; i++) { last = (i == IEEE80211_TX_MAX_RATES - 1) || !minstrel_ht_txstat_valid(&ar[i + 1]); - if (!minstrel_ht_txstat_valid(&ar[i])) - break; - group = minstrel_ht_get_group_idx(&ar[i]); rate = &mi->groups[group].rates[ar[i].idx % 8]; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 00ade7feb2e3..580704eba8b8 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -40,6 +40,8 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, struct sk_buff *skb) { + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); + if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) { if (likely(skb->len > FCS_LEN)) __pskb_trim(skb, skb->len - FCS_LEN); @@ -47,24 +49,29 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, /* driver bug */ WARN_ON(1); dev_kfree_skb(skb); - skb = NULL; + return NULL; } } + if (status->vendor_radiotap_len) + __pskb_pull(skb, status->vendor_radiotap_len); + return skb; } -static inline int should_drop_frame(struct sk_buff *skb, - int present_fcs_len) +static inline int should_drop_frame(struct sk_buff *skb, int present_fcs_len) { struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_hdr *hdr; + + hdr = (void *)(skb->data + status->vendor_radiotap_len); if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC | RX_FLAG_AMPDU_IS_ZEROLEN)) return 1; - if (unlikely(skb->len < 16 + present_fcs_len)) + if (unlikely(skb->len < 16 + present_fcs_len + + status->vendor_radiotap_len)) return 1; if (ieee80211_is_ctl(hdr->frame_control) && !ieee80211_is_pspoll(hdr->frame_control) && @@ -74,32 +81,53 @@ static inline int should_drop_frame(struct sk_buff *skb, } static int -ieee80211_rx_radiotap_len(struct ieee80211_local *local, - struct ieee80211_rx_status *status) +ieee80211_rx_radiotap_space(struct ieee80211_local *local, + struct ieee80211_rx_status *status) { int len; /* always present fields */ len = sizeof(struct ieee80211_radiotap_header) + 9; - if (status->flag & RX_FLAG_MACTIME_MPDU) + /* allocate extra bitmap */ + if (status->vendor_radiotap_len) + len += 4; + + if (ieee80211_have_rx_timestamp(status)) { + len = ALIGN(len, 8); len += 8; + } if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) len += 1; - if (len & 1) /* padding for RX_FLAGS if necessary */ - len++; + /* padding for RX_FLAGS if necessary */ + len = ALIGN(len, 2); if (status->flag & RX_FLAG_HT) /* HT info */ len += 3; if (status->flag & RX_FLAG_AMPDU_DETAILS) { - /* padding */ - while (len & 3) - len++; + len = ALIGN(len, 4); len += 8; } + if (status->flag & RX_FLAG_VHT) { + len = ALIGN(len, 2); + len += 12; + } + + if (status->vendor_radiotap_len) { + if (WARN_ON_ONCE(status->vendor_radiotap_align == 0)) + status->vendor_radiotap_align = 1; + /* align standard part of vendor namespace */ + len = ALIGN(len, 2); + /* allocate standard part of vendor namespace */ + len += 6; + /* align vendor-defined part */ + len = ALIGN(len, status->vendor_radiotap_align); + /* vendor-defined part is already in skb */ + } + return len; } @@ -118,6 +146,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, struct ieee80211_radiotap_header *rthdr; unsigned char *pos; u16 rx_flags = 0; + int mpdulen; + + mpdulen = skb->len; + if (!(has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS))) + mpdulen += FCS_LEN; rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len); memset(rthdr, 0, rtap_len); @@ -128,17 +161,30 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, (1 << IEEE80211_RADIOTAP_CHANNEL) | (1 << IEEE80211_RADIOTAP_ANTENNA) | (1 << IEEE80211_RADIOTAP_RX_FLAGS)); - rthdr->it_len = cpu_to_le16(rtap_len); + rthdr->it_len = cpu_to_le16(rtap_len + status->vendor_radiotap_len); - pos = (unsigned char *)(rthdr+1); + pos = (unsigned char *)(rthdr + 1); + + if (status->vendor_radiotap_len) { + rthdr->it_present |= + cpu_to_le32(BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE)) | + cpu_to_le32(BIT(IEEE80211_RADIOTAP_EXT)); + put_unaligned_le32(status->vendor_radiotap_bitmap, pos); + pos += 4; + } /* the order of the following fields is important */ /* IEEE80211_RADIOTAP_TSFT */ - if (status->flag & RX_FLAG_MACTIME_MPDU) { - put_unaligned_le64(status->mactime, pos); - rthdr->it_present |= - cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT); + if (ieee80211_have_rx_timestamp(status)) { + /* padding */ + while ((pos - (u8 *)rthdr) & 7) + *pos++ = 0; + put_unaligned_le64( + ieee80211_calculate_rx_timestamp(local, status, + mpdulen, 0), + pos); + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT); pos += 8; } @@ -152,7 +198,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, pos++; /* IEEE80211_RADIOTAP_RATE */ - if (!rate || status->flag & RX_FLAG_HT) { + if (!rate || status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) { /* * Without rate information don't add it. If we have, * MCS information is a separate field in radiotap, @@ -172,7 +218,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, if (status->band == IEEE80211_BAND_5GHZ) put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ, pos); - else if (status->flag & RX_FLAG_HT) + else if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) put_unaligned_le16(IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ, pos); else if (rate && rate->flags & IEEE80211_RATE_ERP_G) @@ -205,7 +251,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, /* IEEE80211_RADIOTAP_RX_FLAGS */ /* ensure 2 byte alignment for the 2 byte field as required */ if ((pos - (u8 *)rthdr) & 1) - pos++; + *pos++ = 0; if (status->flag & RX_FLAG_FAILED_PLCP_CRC) rx_flags |= IEEE80211_RADIOTAP_F_RX_BADPLCP; put_unaligned_le16(rx_flags, pos); @@ -255,6 +301,56 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, *pos++ = 0; *pos++ = 0; } + + if (status->flag & RX_FLAG_VHT) { + u16 known = local->hw.radiotap_vht_details; + + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT); + /* known field - how to handle 80+80? */ + if (status->flag & RX_FLAG_80P80MHZ) + known &= ~IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; + put_unaligned_le16(known, pos); + pos += 2; + /* flags */ + if (status->flag & RX_FLAG_SHORT_GI) + *pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI; + pos++; + /* bandwidth */ + if (status->flag & RX_FLAG_80MHZ) + *pos++ = 4; + else if (status->flag & RX_FLAG_80P80MHZ) + *pos++ = 0; /* marked not known above */ + else if (status->flag & RX_FLAG_160MHZ) + *pos++ = 11; + else if (status->flag & RX_FLAG_40MHZ) + *pos++ = 1; + else /* 20 MHz */ + *pos++ = 0; + /* MCS/NSS */ + *pos = (status->rate_idx << 4) | status->vht_nss; + pos += 4; + /* coding field */ + pos++; + /* group ID */ + pos++; + /* partial_aid */ + pos += 2; + } + + if (status->vendor_radiotap_len) { + /* ensure 2 byte alignment for the vendor field as required */ + if ((pos - (u8 *)rthdr) & 1) + *pos++ = 0; + *pos++ = status->vendor_radiotap_oui[0]; + *pos++ = status->vendor_radiotap_oui[1]; + *pos++ = status->vendor_radiotap_oui[2]; + *pos++ = status->vendor_radiotap_subns; + put_unaligned_le16(status->vendor_radiotap_len, pos); + pos += 2; + /* align the actual payload as requested */ + while ((pos - (u8 *)rthdr) & (status->vendor_radiotap_align - 1)) + *pos++ = 0; + } } /* @@ -282,14 +378,11 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, * the SKB because it has a bad FCS/PLCP checksum. */ - /* room for the radiotap header based on driver features */ - needed_headroom = ieee80211_rx_radiotap_len(local, status); - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) present_fcs_len = FCS_LEN; - /* make sure hdr->frame_control is on the linear part */ - if (!pskb_may_pull(origskb, 2)) { + /* ensure hdr->frame_control and vendor radiotap data are in skb head */ + if (!pskb_may_pull(origskb, 2 + status->vendor_radiotap_len)) { dev_kfree_skb(origskb); return NULL; } @@ -303,6 +396,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return remove_monitor_info(local, origskb); } + /* room for the radiotap header based on driver features */ + needed_headroom = ieee80211_rx_radiotap_space(local, status); + if (should_drop_frame(origskb, present_fcs_len)) { /* only need to expand headroom if necessary */ skb = origskb; @@ -374,7 +470,6 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return origskb; } - static void ieee80211_parse_qos(struct ieee80211_rx_data *rx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; @@ -403,10 +498,10 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx) * * We also use that counter for non-QoS STAs. */ - seqno_idx = NUM_RX_DATA_QUEUES; + seqno_idx = IEEE80211_NUM_TIDS; security_idx = 0; if (ieee80211_is_mgmt(hdr->frame_control)) - security_idx = NUM_RX_DATA_QUEUES; + security_idx = IEEE80211_NUM_TIDS; tid = 0; } @@ -481,8 +576,7 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb) struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data; struct ieee80211_mmie *mmie; - if (skb->len < 24 + sizeof(*mmie) || - !is_multicast_ether_addr(hdr->da)) + if (skb->len < 24 + sizeof(*mmie) || !is_multicast_ether_addr(hdr->da)) return -1; if (!ieee80211_is_robust_mgmt_frame((struct ieee80211_hdr *) hdr)) @@ -497,9 +591,7 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb) return le16_to_cpu(mmie->key_id); } - -static ieee80211_rx_result -ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) +static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; char *dev_addr = rx->sdata->vif.addr; @@ -507,7 +599,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) if (ieee80211_is_data(hdr->frame_control)) { if (is_multicast_ether_addr(hdr->addr1)) { if (ieee80211_has_tods(hdr->frame_control) || - !ieee80211_has_fromds(hdr->frame_control)) + !ieee80211_has_fromds(hdr->frame_control)) return RX_DROP_MONITOR; if (ether_addr_equal(hdr->addr3, dev_addr)) return RX_DROP_MONITOR; @@ -539,7 +631,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) mgmt = (struct ieee80211_mgmt *)hdr; category = mgmt->u.action.category; if (category != WLAN_CATEGORY_MESH_ACTION && - category != WLAN_CATEGORY_SELF_PROTECTED) + category != WLAN_CATEGORY_SELF_PROTECTED) return RX_DROP_MONITOR; return RX_CONTINUE; } @@ -551,7 +643,6 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) return RX_CONTINUE; return RX_DROP_MONITOR; - } return RX_CONTINUE; @@ -575,7 +666,6 @@ static inline u16 seq_sub(u16 sq1, u16 sq2) return (sq1 - sq2) & SEQ_MASK; } - static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx, int index) @@ -1148,12 +1238,19 @@ ieee80211_rx_h_check_more_data(struct ieee80211_rx_data *rx) return RX_CONTINUE; } -static void ap_sta_ps_start(struct sta_info *sta) +static void sta_ps_start(struct sta_info *sta) { struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; + struct ps_data *ps; + + if (sta->sdata->vif.type == NL80211_IFTYPE_AP || + sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + ps = &sdata->bss->ps; + else + return; - atomic_inc(&sdata->bss->num_sta_ps); + atomic_inc(&ps->num_sta_ps); set_sta_flag(sta, WLAN_STA_PS_STA); if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta); @@ -1161,7 +1258,7 @@ static void ap_sta_ps_start(struct sta_info *sta) sta->sta.addr, sta->sta.aid); } -static void ap_sta_ps_end(struct sta_info *sta) +static void sta_ps_end(struct sta_info *sta) { ps_dbg(sta->sdata, "STA %pM aid %d exits power save mode\n", sta->sta.addr, sta->sta.aid); @@ -1188,9 +1285,9 @@ int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start) return -EINVAL; if (start) - ap_sta_ps_start(sta_inf); + sta_ps_start(sta_inf); else - ap_sta_ps_end(sta_inf); + sta_ps_end(sta_inf); return 0; } @@ -1284,17 +1381,22 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) /* * Update last_rx only for IBSS packets which are for the current - * BSSID to avoid keeping the current IBSS network alive in cases - * where other STAs start using different BSSID. + * BSSID and for station already AUTHORIZED to avoid keeping the + * current IBSS network alive in cases where other STAs start + * using different BSSID. This will also give the station another + * chance to restart the authentication/authorization in case + * something went wrong the first time. */ if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) { u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len, NL80211_IFTYPE_ADHOC); - if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid)) { + if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid) && + test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { sta->last_rx = jiffies; if (ieee80211_is_data(hdr->frame_control)) { sta->last_rx_rate_idx = status->rate_idx; sta->last_rx_rate_flag = status->flag; + sta->last_rx_rate_vht_nss = status->vht_nss; } } } else if (!is_multicast_ether_addr(hdr->addr1)) { @@ -1306,6 +1408,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) if (ieee80211_is_data(hdr->frame_control)) { sta->last_rx_rate_idx = status->rate_idx; sta->last_rx_rate_flag = status->flag; + sta->last_rx_rate_vht_nss = status->vht_nss; } } @@ -1342,10 +1445,10 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) */ if (ieee80211_is_data(hdr->frame_control) && !ieee80211_has_pm(hdr->frame_control)) - ap_sta_ps_end(sta); + sta_ps_end(sta); } else { if (ieee80211_has_pm(hdr->frame_control)) - ap_sta_ps_start(sta); + sta_ps_start(sta); } } @@ -1391,9 +1494,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, struct sk_buff **skb) { struct ieee80211_fragment_entry *entry; - int idx; - idx = sdata->fragment_next; entry = &sdata->fragments[sdata->fragment_next++]; if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX) sdata->fragment_next = 0; @@ -1580,18 +1681,15 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) return RX_CONTINUE; } -static int -ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx) +static int ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx) { - if (unlikely(!rx->sta || - !test_sta_flag(rx->sta, WLAN_STA_AUTHORIZED))) + if (unlikely(!rx->sta || !test_sta_flag(rx->sta, WLAN_STA_AUTHORIZED))) return -EACCES; return 0; } -static int -ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc) +static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc) { struct sk_buff *skb = rx->skb; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); @@ -1613,8 +1711,7 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc) return 0; } -static int -ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) +static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); @@ -1998,7 +2095,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) } else { /* unable to resolve next hop */ mesh_path_error_tx(ifmsh->mshcfg.element_ttl, fwd_hdr->addr3, - 0, reason, fwd_hdr->addr2, sdata); + 0, reason, fwd_hdr->addr2, sdata); IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_no_route); kfree_skb(fwd_skb); return RX_DROP_MONITOR; @@ -2207,7 +2304,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) cfg80211_report_obss_beacon(rx->local->hw.wiphy, rx->skb->data, rx->skb->len, - status->freq, sig, GFP_ATOMIC); + status->freq, sig); rx->flags |= IEEE80211_RX_BEACON_REPORTED; } @@ -2236,7 +2333,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) if (len < IEEE80211_MIN_ACTION_SIZE) return RX_DROP_UNUSABLE; - if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) + if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC && + mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED) return RX_DROP_UNUSABLE; if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) @@ -2407,7 +2505,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) if (!ieee80211_vif_is_mesh(&sdata->vif)) break; if (mesh_action_is_path_sel(mgmt) && - (!mesh_path_sel_is_hwmp(sdata))) + !mesh_path_sel_is_hwmp(sdata)) break; goto queue; } @@ -2463,7 +2561,6 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx) return RX_QUEUED; } - return RX_CONTINUE; } @@ -2593,7 +2690,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx, goto out_free_skb; /* room for the radiotap header based on driver features */ - needed_headroom = ieee80211_rx_radiotap_len(local, status); + needed_headroom = ieee80211_rx_radiotap_space(local, status); if (skb_headroom(skb) < needed_headroom && pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) @@ -2656,7 +2753,8 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, status = IEEE80211_SKB_RXCB((rx->skb)); sband = rx->local->hw.wiphy->bands[status->band]; - if (!(status->flag & RX_FLAG_HT)) + if (!(status->flag & RX_FLAG_HT) && + !(status->flag & RX_FLAG_VHT)) rate = &sband->bitrates[status->rate_idx]; ieee80211_rx_cooked_monitor(rx, rate); @@ -2823,8 +2921,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx, status->rx_flags &= ~IEEE80211_RX_RA_MATCH; } else if (!rx->sta) { int rate_idx; - if (status->flag & RX_FLAG_HT) - rate_idx = 0; /* TODO: HT rates */ + if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) + rate_idx = 0; /* TODO: HT/VHT rates */ else rate_idx = status->rate_idx; ieee80211_ibss_rx_no_sta(sdata, bssid, hdr->addr2, @@ -3048,8 +3146,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) WARN_ON_ONCE(softirq_count() == 0); - if (WARN_ON(status->band < 0 || - status->band >= IEEE80211_NUM_BANDS)) + if (WARN_ON(status->band >= IEEE80211_NUM_BANDS)) goto drop; sband = local->hw.wiphy->bands[status->band]; @@ -3094,17 +3191,22 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) * hardware error. The driver should catch hardware * errors. */ - if (WARN((status->rate_idx < 0 || - status->rate_idx > 76), + if (WARN(status->rate_idx > 76, "Rate marked as an HT rate but passed " "status->rate_idx is not " "an MCS index [0-76]: %d (0x%02x)\n", status->rate_idx, status->rate_idx)) goto drop; + } else if (status->flag & RX_FLAG_VHT) { + if (WARN_ONCE(status->rate_idx > 9 || + !status->vht_nss || + status->vht_nss > 8, + "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n", + status->rate_idx, status->vht_nss)) + goto drop; } else { - if (WARN_ON(status->rate_idx < 0 || - status->rate_idx >= sband->n_bitrates)) + if (WARN_ON(status->rate_idx >= sband->n_bitrates)) goto drop; rate = &sband->bitrates[status->rate_idx]; } diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 43e60b5a7546..8ed83dcc149f 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -118,7 +118,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local, struct ieee80211_tim_ie *tim_ie = elems->tim; bss->dtim_period = tim_ie->dtim_period; if (!elems->parse_error) - bss->valid_data |= IEEE80211_BSS_VALID_DTIM; + bss->valid_data |= IEEE80211_BSS_VALID_DTIM; } /* If the beacon had no TIM IE, or it was invalid, use 1 */ @@ -174,7 +174,6 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) u8 *elements; struct ieee80211_channel *channel; size_t baselen; - int freq; bool beacon; struct ieee802_11_elems elems; @@ -209,13 +208,7 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) ieee802_11_parse_elems(elements, skb->len - baselen, &elems); - if (elems.ds_params && elems.ds_params_len == 1) - freq = ieee80211_channel_to_frequency(elems.ds_params[0], - rx_status->band); - else - freq = rx_status->freq; - - channel = ieee80211_get_channel(local->hw.wiphy, freq); + channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq); if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; @@ -254,6 +247,7 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) local->hw_scan_req->n_channels = n_chans; ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie, + local->hw_scan_ies_bufsize, req->ie, req->ie_len, band, req->rates[band], 0); local->hw_scan_req->ie_len = ielen; @@ -336,6 +330,10 @@ EXPORT_SYMBOL(ieee80211_scan_completed); static int ieee80211_start_sw_scan(struct ieee80211_local *local) { + /* Software scan is not supported in multi-channel cases */ + if (local->use_chanctx) + return -EOPNOTSUPP; + /* * Hardware/driver doesn't support hw_scan, so use software * scanning instead. First send a nullfunc frame with power save @@ -417,7 +415,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local, local->scan_req->ie, local->scan_req->ie_len, local->scan_req->rates[band], false, local->scan_req->no_cck, - local->hw.conf.channel); + local->hw.conf.channel, true); /* * After sending probe requests, wait for probe responses @@ -448,11 +446,13 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (local->ops->hw_scan) { u8 *ies; + local->hw_scan_ies_bufsize = 2 + IEEE80211_MAX_SSID_LEN + + local->scan_ies_len + + req->ie_len; local->hw_scan_req = kmalloc( sizeof(*local->hw_scan_req) + req->n_channels * sizeof(req->channels[0]) + - 2 + IEEE80211_MAX_SSID_LEN + local->scan_ies_len + - req->ie_len, GFP_KERNEL); + local->hw_scan_ies_bufsize, GFP_KERNEL); if (!local->hw_scan_req) return -ENOMEM; @@ -462,6 +462,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, sizeof(*local->hw_scan_req) + req->n_channels * sizeof(req->channels[0]); local->hw_scan_req->ie = ies; + local->hw_scan_req->flags = req->flags; local->hw_scan_band = 0; @@ -480,7 +481,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (local->ops->hw_scan) { __set_bit(SCAN_HW_SCANNING, &local->scanning); } else if ((req->n_channels == 1) && - (req->channels[0] == local->oper_channel)) { + (req->channels[0] == local->_oper_channel)) { /* * If we are scanning only on the operating channel * then we do not need to stop normal activities @@ -562,6 +563,7 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local, unsigned long min_beacon_int = 0; struct ieee80211_sub_if_data *sdata; struct ieee80211_channel *next_chan; + enum mac80211_scan_state next_scan_state; /* * check if at least one STA interface is associated, @@ -620,10 +622,18 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local, usecs_to_jiffies(min_beacon_int * 1024) * local->hw.conf.listen_interval); - if (associated && (!tx_empty || bad_latency || listen_int_exceeded)) - local->next_scan_state = SCAN_SUSPEND; - else - local->next_scan_state = SCAN_SET_CHANNEL; + if (associated && !tx_empty) { + if (local->scan_req->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) + next_scan_state = SCAN_ABORT; + else + next_scan_state = SCAN_SUSPEND; + } else if (associated && (bad_latency || listen_int_exceeded)) { + next_scan_state = SCAN_SUSPEND; + } else { + next_scan_state = SCAN_SET_CHANNEL; + } + + local->next_scan_state = next_scan_state; *next_delay = 0; } @@ -794,6 +804,9 @@ void ieee80211_scan_work(struct work_struct *work) case SCAN_RESUME: ieee80211_scan_state_resume(local, &next_delay); break; + case SCAN_ABORT: + aborted = true; + goto out_complete; } } while (next_delay == 0); @@ -918,7 +931,10 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_sched_scan_ies sched_scan_ies = {}; - int ret, i; + int ret, i, iebufsz; + + iebufsz = 2 + IEEE80211_MAX_SSID_LEN + + local->scan_ies_len + req->ie_len; mutex_lock(&local->mtx); @@ -936,10 +952,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, if (!local->hw.wiphy->bands[i]) continue; - sched_scan_ies.ie[i] = kzalloc(2 + IEEE80211_MAX_SSID_LEN + - local->scan_ies_len + - req->ie_len, - GFP_KERNEL); + sched_scan_ies.ie[i] = kzalloc(iebufsz, GFP_KERNEL); if (!sched_scan_ies.ie[i]) { ret = -ENOMEM; goto out_free; @@ -947,8 +960,8 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, sched_scan_ies.len[i] = ieee80211_build_preq_ies(local, sched_scan_ies.ie[i], - req->ie, req->ie_len, i, - (u32) -1, 0); + iebufsz, req->ie, req->ie_len, + i, (u32) -1, 0); } ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies); diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index d2eb64e12353..f3e502502fee 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -98,6 +98,7 @@ static void free_sta_work(struct work_struct *wk) struct tid_ampdu_tx *tid_tx; struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; + struct ps_data *ps; /* * At this point, when being called as call_rcu callback, @@ -107,11 +108,15 @@ static void free_sta_work(struct work_struct *wk) */ if (test_sta_flag(sta, WLAN_STA_PS_STA)) { - BUG_ON(!sdata->bss); + if (sta->sdata->vif.type == NL80211_IFTYPE_AP || + sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + ps = &sdata->bss->ps; + else + return; clear_sta_flag(sta, WLAN_STA_PS_STA); - atomic_dec(&sdata->bss->num_sta_ps); + atomic_dec(&ps->num_sta_ps); sta_info_recalc_tim(sta); } @@ -137,7 +142,7 @@ static void free_sta_work(struct work_struct *wk) * drivers have to handle aggregation stop being requested, followed * directly by station destruction. */ - for (i = 0; i < STA_TID_NUM; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) { tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]); if (!tid_tx) continue; @@ -325,7 +330,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, return NULL; } - for (i = 0; i < STA_TID_NUM; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) { /* * timer_to_tid must be initialized with identity mapping * to enable session_timer's data differentiation. See @@ -338,7 +343,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, skb_queue_head_init(&sta->tx_filtered[i]); } - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) + for (i = 0; i < IEEE80211_NUM_TIDS; i++) sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX); sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr); @@ -502,22 +507,22 @@ int sta_info_insert(struct sta_info *sta) return err; } -static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid) +static inline void __bss_tim_set(u8 *tim, u16 id) { /* * This format has been mandated by the IEEE specifications, * so this line may not be changed to use the __set_bit() format. */ - bss->tim[aid / 8] |= (1 << (aid % 8)); + tim[id / 8] |= (1 << (id % 8)); } -static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid) +static inline void __bss_tim_clear(u8 *tim, u16 id) { /* * This format has been mandated by the IEEE specifications, * so this line may not be changed to use the __clear_bit() format. */ - bss->tim[aid / 8] &= ~(1 << (aid % 8)); + tim[id / 8] &= ~(1 << (id % 8)); } static unsigned long ieee80211_tids_for_ac(int ac) @@ -541,14 +546,23 @@ static unsigned long ieee80211_tids_for_ac(int ac) void sta_info_recalc_tim(struct sta_info *sta) { struct ieee80211_local *local = sta->local; - struct ieee80211_if_ap *bss = sta->sdata->bss; + struct ps_data *ps; unsigned long flags; bool indicate_tim = false; u8 ignore_for_tim = sta->sta.uapsd_queues; int ac; + u16 id; + + if (sta->sdata->vif.type == NL80211_IFTYPE_AP || + sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { + if (WARN_ON_ONCE(!sta->sdata->bss)) + return; - if (WARN_ON_ONCE(!sta->sdata->bss)) + ps = &sta->sdata->bss->ps; + id = sta->sta.aid; + } else { return; + } /* No need to do anything if the driver does all */ if (local->hw.flags & IEEE80211_HW_AP_LINK_PS) @@ -587,9 +601,9 @@ void sta_info_recalc_tim(struct sta_info *sta) spin_lock_irqsave(&local->tim_lock, flags); if (indicate_tim) - __bss_tim_set(bss, sta->sta.aid); + __bss_tim_set(ps->tim, id); else - __bss_tim_clear(bss, sta->sta.aid); + __bss_tim_clear(ps->tim, id); if (local->ops->set_tim) { local->tim_in_locked_section = true; @@ -893,8 +907,8 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, continue; if (time_after(jiffies, sta->last_rx + exp_time)) { - ibss_dbg(sdata, "expiring inactive STA %pM\n", - sta->sta.addr); + sta_dbg(sta->sdata, "expiring inactive STA %pM\n", + sta->sta.addr); WARN_ON(__sta_info_destroy(sta)); } } @@ -948,10 +962,17 @@ static void clear_sta_ps_flags(void *_sta) { struct sta_info *sta = _sta; struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ps_data *ps; + + if (sdata->vif.type == NL80211_IFTYPE_AP || + sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + ps = &sdata->bss->ps; + else + return; clear_sta_flag(sta, WLAN_STA_PS_DRIVER); if (test_and_clear_sta_flag(sta, WLAN_STA_PS_STA)) - atomic_dec(&sdata->bss->num_sta_ps); + atomic_dec(&ps->num_sta_ps); } /* powersave support code */ @@ -965,7 +986,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) clear_sta_flag(sta, WLAN_STA_SP); - BUILD_BUG_ON(BITS_TO_LONGS(STA_TID_NUM) > 1); + BUILD_BUG_ON(BITS_TO_LONGS(IEEE80211_NUM_TIDS) > 1); sta->driver_buffered_tids = 0; if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) @@ -1013,6 +1034,7 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, __le16 fc; bool qos = test_sta_flag(sta, WLAN_STA_WME); struct ieee80211_tx_info *info; + struct ieee80211_chanctx_conf *chanctx_conf; if (qos) { fc = cpu_to_le16(IEEE80211_FTYPE_DATA | @@ -1062,7 +1084,16 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, drv_allow_buffered_frames(local, sta, BIT(tid), 1, reason, false); - ieee80211_xmit(sdata, skb); + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + kfree_skb(skb); + return; + } + + ieee80211_xmit(sdata, skb, chanctx_conf->def.chan->band); + rcu_read_unlock(); } static void @@ -1343,7 +1374,7 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta, { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); - if (WARN_ON(tid >= STA_TID_NUM)) + if (WARN_ON(tid >= IEEE80211_NUM_TIDS)) return; if (buffered) diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index c88f161f8118..1489bca9ea97 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -80,7 +80,6 @@ enum ieee80211_sta_info_flags { WLAN_STA_TOFFSET_KNOWN, }; -#define STA_TID_NUM 16 #define ADDBA_RESP_INTERVAL HZ #define HT_AGG_MAX_RETRIES 15 #define HT_AGG_BURST_RETRIES 3 @@ -197,15 +196,15 @@ struct tid_ampdu_rx { struct sta_ampdu_mlme { struct mutex mtx; /* rx */ - struct tid_ampdu_rx __rcu *tid_rx[STA_TID_NUM]; - unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)]; - unsigned long tid_rx_stop_requested[BITS_TO_LONGS(STA_TID_NUM)]; + struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS]; + unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; + unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; /* tx */ struct work_struct work; - struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM]; - struct tid_ampdu_tx *tid_start_tx[STA_TID_NUM]; - unsigned long last_addba_req_time[STA_TID_NUM]; - u8 addba_req_num[STA_TID_NUM]; + struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS]; + struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS]; + unsigned long last_addba_req_time[IEEE80211_NUM_TIDS]; + u8 addba_req_num[IEEE80211_NUM_TIDS]; u8 dialog_token_allocator; }; @@ -228,6 +227,7 @@ struct sta_ampdu_mlme { * "the" transmit rate * @last_rx_rate_idx: rx status rate index of the last data packet * @last_rx_rate_flag: rx status flag of the last data packet + * @last_rx_rate_vht_nss: rx status nss of last data packet * @lock: used for locking all fields that require locking, see comments * in the header file. * @drv_unblock_wk: used for driver PS unblocking @@ -250,6 +250,7 @@ struct sta_ampdu_mlme { * @rx_dropped: number of dropped MPDUs from this STA * @last_signal: signal of last received frame from this STA * @avg_signal: moving average of signal of received frames from this STA + * @last_ack_signal: signal of last received Ack frame from this STA * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue) * @tx_filtered_count: number of frames the hardware filtered for this STA * @tx_retry_failed: number of frames that failed retry @@ -273,7 +274,7 @@ struct sta_ampdu_mlme { * @t_offset: timing offset relative to this host * @t_offset_setpoint: reference timing offset of this sta to be used when * calculating clockdrift - * @ch_type: peer's channel type + * @ch_width: peer's channel width * @debugfs: debug filesystem info * @dead: set to true when sta is unlinked * @uploaded: set to true when sta is uploaded to the driver @@ -329,8 +330,9 @@ struct sta_info { unsigned long rx_dropped; int last_signal; struct ewma avg_signal; + int last_ack_signal; /* Plus 1 for non-QoS frames */ - __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES + 1]; + __le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1]; /* Updated from TX status path only, no locking requirements */ unsigned long tx_filtered_count; @@ -344,14 +346,15 @@ struct sta_info { unsigned long tx_fragments; struct ieee80211_tx_rate last_tx_rate; int last_rx_rate_idx; - int last_rx_rate_flag; + u32 last_rx_rate_flag; + u8 last_rx_rate_vht_nss; u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; /* * Aggregation information, locked with lock. */ struct sta_ampdu_mlme ampdu_mlme; - u8 timer_to_tid[STA_TID_NUM]; + u8 timer_to_tid[IEEE80211_NUM_TIDS]; #ifdef CONFIG_MAC80211_MESH /* @@ -369,7 +372,7 @@ struct sta_info { struct timer_list plink_timer; s64 t_offset; s64 t_offset_setpoint; - enum nl80211_channel_type ch_type; + enum nl80211_chan_width ch_width; #endif #ifdef CONFIG_MAC80211_DEBUGFS @@ -551,6 +554,8 @@ int sta_info_flush(struct ieee80211_local *local, void sta_set_rate_info_tx(struct sta_info *sta, const struct ieee80211_tx_rate *rate, struct rate_info *rinfo); +void sta_set_rate_info_rx(struct sta_info *sta, + struct rate_info *rinfo); void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, unsigned long exp_time); diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 101eb88a2b78..07d99578a2b1 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -189,30 +189,31 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) } if (ieee80211_is_action(mgmt->frame_control) && - sdata->vif.type == NL80211_IFTYPE_STATION && mgmt->u.action.category == WLAN_CATEGORY_HT && - mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS) { + mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS && + sdata->vif.type == NL80211_IFTYPE_STATION && + ieee80211_sdata_running(sdata)) { /* * This update looks racy, but isn't -- if we come * here we've definitely got a station that we're * talking to, and on a managed interface that can * only be the AP. And the only other place updating - * this variable is before we're associated. + * this variable in managed mode is before association. */ switch (mgmt->u.action.u.ht_smps.smps_control) { case WLAN_HT_SMPS_CONTROL_DYNAMIC: - sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_DYNAMIC; + sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; break; case WLAN_HT_SMPS_CONTROL_STATIC: - sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_STATIC; + sdata->smps_mode = IEEE80211_SMPS_STATIC; break; case WLAN_HT_SMPS_CONTROL_DISABLED: default: /* shouldn't happen since we don't send that */ - sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_OFF; + sdata->smps_mode = IEEE80211_SMPS_OFF; break; } - ieee80211_queue_work(&local->hw, &local->recalc_smps); + ieee80211_queue_work(&local->hw, &sdata->recalc_smps); } } @@ -324,6 +325,75 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band } +static void ieee80211_report_used_skb(struct ieee80211_local *local, + struct sk_buff *skb, bool dropped) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (void *)skb->data; + bool acked = info->flags & IEEE80211_TX_STAT_ACK; + + if (dropped) + acked = false; + + if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { + struct ieee80211_sub_if_data *sdata = NULL; + struct ieee80211_sub_if_data *iter_sdata; + u64 cookie = (unsigned long)skb; + + rcu_read_lock(); + + if (skb->dev) { + list_for_each_entry_rcu(iter_sdata, &local->interfaces, + list) { + if (!iter_sdata->dev) + continue; + + if (skb->dev == iter_sdata->dev) { + sdata = iter_sdata; + break; + } + } + } else { + sdata = rcu_dereference(local->p2p_sdata); + } + + if (!sdata) + skb->dev = NULL; + else if (ieee80211_is_nullfunc(hdr->frame_control) || + ieee80211_is_qos_nullfunc(hdr->frame_control)) { + cfg80211_probe_status(sdata->dev, hdr->addr1, + cookie, acked, GFP_ATOMIC); + } else { + cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data, + skb->len, acked, GFP_ATOMIC); + } + + rcu_read_unlock(); + } + + if (unlikely(info->ack_frame_id)) { + struct sk_buff *ack_skb; + unsigned long flags; + + spin_lock_irqsave(&local->ack_status_lock, flags); + ack_skb = idr_find(&local->ack_status_frames, + info->ack_frame_id); + if (ack_skb) + idr_remove(&local->ack_status_frames, + info->ack_frame_id); + spin_unlock_irqrestore(&local->ack_status_lock, flags); + + if (ack_skb) { + if (!dropped) { + /* consumes ack_skb */ + skb_complete_wifi_ack(ack_skb, acked); + } else { + dev_kfree_skb_any(ack_skb); + } + } + } +} + /* * Use a static threshold for now, best value to be determined * by testing ... @@ -432,7 +502,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) IEEE80211_BAR_CTRL_TID_INFO_MASK) >> IEEE80211_BAR_CTRL_TID_INFO_SHIFT; - ieee80211_set_bar_pending(sta, tid, ssn); + if (local->hw.flags & + IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL) + ieee80211_stop_tx_ba_session(&sta->sta, tid); + else + ieee80211_set_bar_pending(sta, tid, ssn); } } @@ -469,6 +543,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) sta->lost_packets = 0; } } + + if (acked) + sta->last_ack_signal = info->status.ack_signal; } rcu_read_unlock(); @@ -515,62 +592,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) msecs_to_jiffies(10)); } - if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { - u64 cookie = (unsigned long)skb; - bool found = false; - - acked = info->flags & IEEE80211_TX_STAT_ACK; - - rcu_read_lock(); - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (!sdata->dev) - continue; - - if (skb->dev != sdata->dev) - continue; - - found = true; - break; - } - - if (!skb->dev) { - sdata = rcu_dereference(local->p2p_sdata); - if (sdata) - found = true; - } - - if (!found) - skb->dev = NULL; - else if (ieee80211_is_nullfunc(hdr->frame_control) || - ieee80211_is_qos_nullfunc(hdr->frame_control)) { - cfg80211_probe_status(sdata->dev, hdr->addr1, - cookie, acked, GFP_ATOMIC); - } else { - cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data, - skb->len, acked, GFP_ATOMIC); - } - - rcu_read_unlock(); - } - - if (unlikely(info->ack_frame_id)) { - struct sk_buff *ack_skb; - unsigned long flags; - - spin_lock_irqsave(&local->ack_status_lock, flags); - ack_skb = idr_find(&local->ack_status_frames, - info->ack_frame_id); - if (ack_skb) - idr_remove(&local->ack_status_frames, - info->ack_frame_id); - spin_unlock_irqrestore(&local->ack_status_lock, flags); - - /* consumes ack_skb */ - if (ack_skb) - skb_complete_wifi_ack(ack_skb, - info->flags & IEEE80211_TX_STAT_ACK); - } + ieee80211_report_used_skb(local, skb, false); /* this was a transmitted frame, but now we want to reuse it */ skb_orphan(skb); @@ -646,25 +668,8 @@ EXPORT_SYMBOL(ieee80211_report_low_ack); void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb) { struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - if (unlikely(info->ack_frame_id)) { - struct sk_buff *ack_skb; - unsigned long flags; - - spin_lock_irqsave(&local->ack_status_lock, flags); - ack_skb = idr_find(&local->ack_status_frames, - info->ack_frame_id); - if (ack_skb) - idr_remove(&local->ack_status_frames, - info->ack_frame_id); - spin_unlock_irqrestore(&local->ack_status_lock, flags); - - /* consumes ack_skb */ - if (ack_skb) - dev_kfree_skb_any(ack_skb); - } + ieee80211_report_used_skb(local, skb, true); dev_kfree_skb_any(skb); } EXPORT_SYMBOL(ieee80211_free_txskb); diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index 18d9c8a52e9e..a8270b441a6f 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -28,6 +28,25 @@ #define VIF_PR_FMT " vif:%s(%d%s)" #define VIF_PR_ARG __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : "" +#define CHANCTX_ENTRY __field(u32, control_freq) \ + __field(u32, chan_width) \ + __field(u32, center_freq1) \ + __field(u32, center_freq2) \ + __field(u8, rx_chains_static) \ + __field(u8, rx_chains_dynamic) +#define CHANCTX_ASSIGN __entry->control_freq = ctx->conf.def.chan->center_freq;\ + __entry->chan_width = ctx->conf.def.width; \ + __entry->center_freq1 = ctx->conf.def.center_freq1; \ + __entry->center_freq2 = ctx->conf.def.center_freq2; \ + __entry->rx_chains_static = ctx->conf.rx_chains_static; \ + __entry->rx_chains_dynamic = ctx->conf.rx_chains_dynamic +#define CHANCTX_PR_FMT " control:%d MHz width:%d center: %d/%d MHz chains:%d/%d" +#define CHANCTX_PR_ARG __entry->control_freq, __entry->chan_width, \ + __entry->center_freq1, __entry->center_freq2, \ + __entry->rx_chains_static, __entry->rx_chains_dynamic + + + /* * Tracing for driver callbacks. */ @@ -301,20 +320,37 @@ TRACE_EVENT(drv_bss_info_changed, TP_STRUCT__entry( LOCAL_ENTRY VIF_ENTRY + __field(u32, changed) __field(bool, assoc) + __field(bool, ibss_joined) + __field(bool, ibss_creator) __field(u16, aid) __field(bool, cts) __field(bool, shortpre) __field(bool, shortslot) + __field(bool, enable_beacon) __field(u8, dtimper) __field(u16, bcnint) __field(u16, assoc_cap) __field(u64, sync_tsf) __field(u32, sync_device_ts) __field(u32, basic_rates) - __field(u32, changed) - __field(bool, enable_beacon) + __array(int, mcast_rate, IEEE80211_NUM_BANDS) __field(u16, ht_operation_mode) + __field(s32, cqm_rssi_thold); + __field(s32, cqm_rssi_hyst); + __field(u32, channel_width); + __field(u32, channel_cfreq1); + __dynamic_array(u32, arp_addr_list, info->arp_addr_cnt); + __field(bool, arp_filter_enabled); + __field(bool, qos); + __field(bool, idle); + __field(bool, ps); + __dynamic_array(u8, ssid, info->ssid_len); + __field(bool, hidden_ssid); + __field(int, txpower) + __field(u8, p2p_ctwindow) + __field(bool, p2p_oppps) ), TP_fast_assign( @@ -323,17 +359,36 @@ TRACE_EVENT(drv_bss_info_changed, __entry->changed = changed; __entry->aid = info->aid; __entry->assoc = info->assoc; + __entry->ibss_joined = info->ibss_joined; + __entry->ibss_creator = info->ibss_creator; __entry->shortpre = info->use_short_preamble; __entry->cts = info->use_cts_prot; __entry->shortslot = info->use_short_slot; + __entry->enable_beacon = info->enable_beacon; __entry->dtimper = info->dtim_period; __entry->bcnint = info->beacon_int; __entry->assoc_cap = info->assoc_capability; __entry->sync_tsf = info->sync_tsf; __entry->sync_device_ts = info->sync_device_ts; __entry->basic_rates = info->basic_rates; - __entry->enable_beacon = info->enable_beacon; + memcpy(__entry->mcast_rate, info->mcast_rate, + sizeof(__entry->mcast_rate)); __entry->ht_operation_mode = info->ht_operation_mode; + __entry->cqm_rssi_thold = info->cqm_rssi_thold; + __entry->cqm_rssi_hyst = info->cqm_rssi_hyst; + __entry->channel_width = info->chandef.width; + __entry->channel_cfreq1 = info->chandef.center_freq1; + memcpy(__get_dynamic_array(arp_addr_list), info->arp_addr_list, + sizeof(u32) * info->arp_addr_cnt); + __entry->arp_filter_enabled = info->arp_filter_enabled; + __entry->qos = info->qos; + __entry->idle = info->idle; + __entry->ps = info->ps; + memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len); + __entry->hidden_ssid = info->hidden_ssid; + __entry->txpower = info->txpower; + __entry->p2p_ctwindow = info->p2p_ctwindow; + __entry->p2p_oppps = info->p2p_oppps; ), TP_printk( @@ -971,28 +1026,31 @@ TRACE_EVENT(drv_get_antenna, ); TRACE_EVENT(drv_remain_on_channel, - TP_PROTO(struct ieee80211_local *local, struct ieee80211_channel *chan, - enum nl80211_channel_type chantype, unsigned int duration), + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *chan, + unsigned int duration), - TP_ARGS(local, chan, chantype, duration), + TP_ARGS(local, sdata, chan, duration), TP_STRUCT__entry( LOCAL_ENTRY + VIF_ENTRY __field(int, center_freq) - __field(int, channel_type) __field(unsigned int, duration) ), TP_fast_assign( LOCAL_ASSIGN; + VIF_ASSIGN; __entry->center_freq = chan->center_freq; - __entry->channel_type = chantype; __entry->duration = duration; ), TP_printk( - LOCAL_PR_FMT " freq:%dMHz duration:%dms", - LOCAL_PR_ARG, __entry->center_freq, __entry->duration + LOCAL_PR_FMT VIF_PR_FMT " freq:%dMHz duration:%dms", + LOCAL_PR_ARG, VIF_PR_ARG, + __entry->center_freq, __entry->duration ) ); @@ -1001,34 +1059,6 @@ DEFINE_EVENT(local_only_evt, drv_cancel_remain_on_channel, TP_ARGS(local) ); -TRACE_EVENT(drv_offchannel_tx, - TP_PROTO(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - unsigned int wait), - - TP_ARGS(local, skb, chan, channel_type, wait), - - TP_STRUCT__entry( - LOCAL_ENTRY - __field(int, center_freq) - __field(int, channel_type) - __field(unsigned int, wait) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - __entry->center_freq = chan->center_freq; - __entry->channel_type = channel_type; - __entry->wait = wait; - ), - - TP_printk( - LOCAL_PR_FMT " freq:%dMHz, wait:%dms", - LOCAL_PR_ARG, __entry->center_freq, __entry->wait - ) -); - TRACE_EVENT(drv_set_ringparam, TP_PROTO(struct ieee80211_local *local, u32 tx, u32 rx), @@ -1256,6 +1286,146 @@ DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx, TP_ARGS(local, sdata) ); +DECLARE_EVENT_CLASS(local_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx), + + TP_ARGS(local, ctx), + + TP_STRUCT__entry( + LOCAL_ENTRY + CHANCTX_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + CHANCTX_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT CHANCTX_PR_FMT, + LOCAL_PR_ARG, CHANCTX_PR_ARG + ) +); + +DEFINE_EVENT(local_chanctx, drv_add_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx), + TP_ARGS(local, ctx) +); + +DEFINE_EVENT(local_chanctx, drv_remove_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx), + TP_ARGS(local, ctx) +); + +TRACE_EVENT(drv_change_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx, + u32 changed), + + TP_ARGS(local, ctx, changed), + + TP_STRUCT__entry( + LOCAL_ENTRY + CHANCTX_ENTRY + __field(u32, changed) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + CHANCTX_ASSIGN; + __entry->changed = changed; + ), + + TP_printk( + LOCAL_PR_FMT CHANCTX_PR_FMT " changed:%#x", + LOCAL_PR_ARG, CHANCTX_PR_ARG, __entry->changed + ) +); + +DECLARE_EVENT_CLASS(local_sdata_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx), + + TP_ARGS(local, sdata, ctx), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + CHANCTX_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + CHANCTX_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT CHANCTX_PR_FMT, + LOCAL_PR_ARG, VIF_PR_ARG, CHANCTX_PR_ARG + ) +); + +DEFINE_EVENT(local_sdata_chanctx, drv_assign_vif_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx), + TP_ARGS(local, sdata, ctx) +); + +DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_chanctx *ctx), + TP_ARGS(local, sdata, ctx) +); + +TRACE_EVENT(drv_start_ap, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *info), + + TP_ARGS(local, sdata, info), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + __field(u8, dtimper) + __field(u16, bcnint) + __dynamic_array(u8, ssid, info->ssid_len); + __field(bool, hidden_ssid); + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + __entry->dtimper = info->dtim_period; + __entry->bcnint = info->beacon_int; + memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len); + __entry->hidden_ssid = info->hidden_ssid; + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT, + LOCAL_PR_ARG, VIF_PR_ARG + ) +); + +DEFINE_EVENT(local_sdata_evt, drv_stop_ap, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) +); + +DEFINE_EVENT(local_only_evt, drv_restart_complete, + TP_PROTO(struct ieee80211_local *local), + TP_ARGS(local) +); + /* * Tracing for API calls that drivers call. */ diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index b858ebe41fda..e9eadc40c09c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -324,22 +324,20 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) struct ieee80211_sub_if_data *sdata; struct sta_info *sta; - /* - * virtual interfaces are protected by RCU - */ - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - struct ieee80211_if_ap *ap; - if (sdata->vif.type != NL80211_IFTYPE_AP) + struct ps_data *ps; + + if (sdata->vif.type == NL80211_IFTYPE_AP) + ps = &sdata->u.ap.ps; + else continue; - ap = &sdata->u.ap; - skb = skb_dequeue(&ap->ps_bc_buf); + + skb = skb_dequeue(&ps->bc_buf); if (skb) { purged++; dev_kfree_skb(skb); } - total += skb_queue_len(&ap->ps_bc_buf); + total += skb_queue_len(&ps->bc_buf); } /* @@ -360,8 +358,6 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) } } - rcu_read_unlock(); - local->total_ps_buffered = total; ps_dbg_hw(&local->hw, "PS buffers full - purged %d frames\n", purged); } @@ -371,6 +367,7 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; + struct ps_data *ps; /* * broadcast/multicast frame @@ -380,16 +377,24 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) * This is done either by the hardware or us. */ - /* powersaving STAs only in AP/VLAN mode */ - if (!tx->sdata->bss) + /* powersaving STAs currently only in AP/VLAN mode */ + if (tx->sdata->vif.type == NL80211_IFTYPE_AP || + tx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { + if (!tx->sdata->bss) + return TX_CONTINUE; + + ps = &tx->sdata->bss->ps; + } else { return TX_CONTINUE; + } + /* no buffering for ordered frames */ if (ieee80211_has_order(hdr->frame_control)) return TX_CONTINUE; /* no stations in PS mode */ - if (!atomic_read(&tx->sdata->bss->num_sta_ps)) + if (!atomic_read(&ps->num_sta_ps)) return TX_CONTINUE; info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM; @@ -404,14 +409,14 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); - if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >= AP_MAX_BC_BUFFER) { + if (skb_queue_len(&ps->bc_buf) >= AP_MAX_BC_BUFFER) { ps_dbg(tx->sdata, "BC TX buffer full - dropping the oldest frame\n"); - dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf)); + dev_kfree_skb(skb_dequeue(&ps->bc_buf)); } else tx->local->total_ps_buffered++; - skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb); + skb_queue_tail(&ps->bc_buf, tx->skb); return TX_QUEUED; } @@ -951,7 +956,6 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) fragnum = 0; skb_queue_walk(&tx->skbs, skb) { - int next_len; const __le16 morefrags = cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); hdr = (void *)skb->data; @@ -970,7 +974,6 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; } else { hdr->frame_control &= ~morefrags; - next_len = 0; } hdr->seq_ctrl |= cpu_to_le16(fragnum & IEEE80211_SCTL_FRAG); fragnum++; @@ -1372,7 +1375,8 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) * Returns false if the frame couldn't be transmitted but was queued instead. */ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, bool txpending) + struct sk_buff *skb, bool txpending, + enum ieee80211_band band) { struct ieee80211_local *local = sdata->local; struct ieee80211_tx_data tx; @@ -1386,20 +1390,18 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, return true; } - rcu_read_lock(); - /* initialises tx */ led_len = skb->len; res_prepare = ieee80211_tx_prepare(sdata, &tx, skb); if (unlikely(res_prepare == TX_DROP)) { ieee80211_free_txskb(&local->hw, skb); - goto out; + return true; } else if (unlikely(res_prepare == TX_QUEUED)) { - goto out; + return true; } - info->band = local->hw.conf.channel->band; + info->band = band; /* set up hw_queue value early */ if (!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) || @@ -1410,8 +1412,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, if (!invoke_tx_handlers(&tx)) result = __ieee80211_tx(local, &tx.skbs, led_len, tx.sta, txpending); - out: - rcu_read_unlock(); + return result; } @@ -1446,7 +1447,8 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata, return 0; } -void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) +void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + enum ieee80211_band band) { struct ieee80211_local *local = sdata->local; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -1454,8 +1456,6 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) int headroom; bool may_encrypt; - rcu_read_lock(); - may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT); headroom = local->tx_headroom; @@ -1466,7 +1466,6 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) { ieee80211_free_txskb(&local->hw, skb); - rcu_read_unlock(); return; } @@ -1478,13 +1477,11 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) !is_multicast_ether_addr(hdr->addr1) && mesh_nexthop_resolve(skb, sdata)) { /* skb queued: don't free */ - rcu_read_unlock(); return; } ieee80211_set_qos_hdr(sdata, skb); - ieee80211_tx(sdata, skb, false); - rcu_read_unlock(); + ieee80211_tx(sdata, skb, false, band); } static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb) @@ -1574,7 +1571,8 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_channel *chan = local->hw.conf.channel; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_channel *chan; struct ieee80211_radiotap_header *prthdr = (struct ieee80211_radiotap_header *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -1583,26 +1581,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, u16 len_rthdr; int hdrlen; - /* - * Frame injection is not allowed if beaconing is not allowed - * or if we need radar detection. Beaconing is usually not allowed when - * the mode or operation (Adhoc, AP, Mesh) does not support DFS. - * Passive scan is also used in world regulatory domains where - * your country is not known and as such it should be treated as - * NO TX unless the channel is explicitly allowed in which case - * your current regulatory domain would not have the passive scan - * flag. - * - * Since AP mode uses monitor interfaces to inject/TX management - * frames we can make AP mode the exception to this rule once it - * supports radar detection as its implementation can deal with - * radar detection by itself. We can do that later by adding a - * monitor flag interfaces used for AP support. - */ - if ((chan->flags & (IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_RADAR | - IEEE80211_CHAN_PASSIVE_SCAN))) - goto fail; - /* check for not even having the fixed radiotap header part */ if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header))) goto fail; /* too short to be possibly valid */ @@ -1688,11 +1666,45 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, } } - ieee80211_xmit(sdata, skb); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) { + tmp_sdata = rcu_dereference(local->monitor_sdata); + if (tmp_sdata) + chanctx_conf = + rcu_dereference(tmp_sdata->vif.chanctx_conf); + } + if (!chanctx_conf) + goto fail_rcu; + + chan = chanctx_conf->def.chan; + + /* + * Frame injection is not allowed if beaconing is not allowed + * or if we need radar detection. Beaconing is usually not allowed when + * the mode or operation (Adhoc, AP, Mesh) does not support DFS. + * Passive scan is also used in world regulatory domains where + * your country is not known and as such it should be treated as + * NO TX unless the channel is explicitly allowed in which case + * your current regulatory domain would not have the passive scan + * flag. + * + * Since AP mode uses monitor interfaces to inject/TX management + * frames we can make AP mode the exception to this rule once it + * supports radar detection as its implementation can deal with + * radar detection by itself. We can do that later by adding a + * monitor flag interfaces used for AP support. + */ + if ((chan->flags & (IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_RADAR | + IEEE80211_CHAN_PASSIVE_SCAN))) + goto fail_rcu; + + ieee80211_xmit(sdata, skb, chan->band); rcu_read_unlock(); return NETDEV_TX_OK; +fail_rcu: + rcu_read_unlock(); fail: dev_kfree_skb(skb); return NETDEV_TX_OK; /* meaning, we dealt with the skb */ @@ -1734,6 +1746,9 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, bool multicast; u32 info_flags = 0; u16 info_id = 0; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_sub_if_data *ap_sdata; + enum ieee80211_band band; if (unlikely(skb->len < ETH_HLEN)) goto fail; @@ -1743,9 +1758,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, ethertype = (skb->data[12] << 8) | skb->data[13]; fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA); + rcu_read_lock(); + switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - rcu_read_lock(); sta = rcu_dereference(sdata->u.vlan.sta); if (sta) { fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); @@ -1758,7 +1774,12 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); wme_sta = test_sta_flag(sta, WLAN_STA_WME); } - rcu_read_unlock(); + ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, + u.ap); + chanctx_conf = rcu_dereference(ap_sdata->vif.chanctx_conf); + if (!chanctx_conf) + goto fail_rcu; + band = chanctx_conf->def.chan->band; if (sta) break; /* fall through */ @@ -1769,6 +1790,11 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN); memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN); hdrlen = 24; + if (sdata->vif.type == NL80211_IFTYPE_AP) + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) + goto fail_rcu; + band = chanctx_conf->def.chan->band; break; case NL80211_IFTYPE_WDS: fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); @@ -1778,15 +1804,20 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr3, skb->data, ETH_ALEN); memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); hdrlen = 30; + /* + * This is the exception! WDS style interfaces are prohibited + * when channel contexts are in used so this must be valid + */ + band = local->hw.conf.channel->band; break; #ifdef CONFIG_MAC80211_MESH case NL80211_IFTYPE_MESH_POINT: if (!sdata->u.mesh.mshcfg.dot11MeshTTL) { /* Do not send frames with mesh_ttl == 0 */ sdata->u.mesh.mshstats.dropped_frames_ttl++; - goto fail; + goto fail_rcu; } - rcu_read_lock(); + if (!is_multicast_ether_addr(skb->data)) { mpath = mesh_path_lookup(skb->data, sdata); if (!mpath) @@ -1803,7 +1834,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, !(mppath && !ether_addr_equal(mppath->mpp, skb->data))) { hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc, skb->data, skb->data + ETH_ALEN); - rcu_read_unlock(); meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata, NULL, NULL); } else { @@ -1819,7 +1849,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, mesh_da = mppath->mpp; else if (mpath) mesh_da = mpath->dst; - rcu_read_unlock(); hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc, mesh_da, sdata->vif.addr); @@ -1839,13 +1868,16 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, skb->data + ETH_ALEN); } + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) + goto fail_rcu; + band = chanctx_conf->def.chan->band; break; #endif case NL80211_IFTYPE_STATION: if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) { bool tdls_peer = false; - rcu_read_lock(); sta = sta_info_get(sdata, skb->data); if (sta) { authorized = test_sta_flag(sta, @@ -1856,7 +1888,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, tdls_auth = test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); } - rcu_read_unlock(); /* * If the TDLS link is enabled, send everything @@ -1871,7 +1902,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, if (tdls_direct) { /* link during setup - throw out frames to peer */ if (!tdls_auth) - goto fail; + goto fail_rcu; /* DA SA BSSID */ memcpy(hdr.addr1, skb->data, ETH_ALEN); @@ -1896,6 +1927,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr3, skb->data, ETH_ALEN); hdrlen = 24; } + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) + goto fail_rcu; + band = chanctx_conf->def.chan->band; break; case NL80211_IFTYPE_ADHOC: /* DA SA BSSID */ @@ -1903,9 +1938,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); memcpy(hdr.addr3, sdata->u.ibss.bssid, ETH_ALEN); hdrlen = 24; + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (!chanctx_conf) + goto fail_rcu; + band = chanctx_conf->def.chan->band; break; default: - goto fail; + goto fail_rcu; } /* @@ -1915,13 +1954,11 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, */ multicast = is_multicast_ether_addr(hdr.addr1); if (!multicast) { - rcu_read_lock(); sta = sta_info_get(sdata, hdr.addr1); if (sta) { authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); wme_sta = test_sta_flag(sta, WLAN_STA_WME); } - rcu_read_unlock(); } /* For mesh, the use of the QoS header is mandatory */ @@ -1949,7 +1986,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, I802_DEBUG_INC(local->tx_handlers_drop_unauth_port); - goto fail; + goto fail_rcu; } if (unlikely(!multicast && skb->sk && @@ -2004,7 +2041,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, kfree_skb(tmp_skb); if (!skb) - goto fail; + goto fail_rcu; } hdr.frame_control = fc; @@ -2052,7 +2089,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, head_need = max_t(int, 0, head_need); if (ieee80211_skb_resize(sdata, skb, head_need, true)) { ieee80211_free_txskb(&local->hw, skb); - return NETDEV_TX_OK; + skb = NULL; + goto fail_rcu; } } @@ -2104,10 +2142,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, info->flags = info_flags; info->ack_frame_id = info_id; - ieee80211_xmit(sdata, skb); + ieee80211_xmit(sdata, skb, band); + rcu_read_unlock(); return NETDEV_TX_OK; + fail_rcu: + rcu_read_unlock(); fail: dev_kfree_skb(skb); return NETDEV_TX_OK; @@ -2142,11 +2183,18 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local, struct sta_info *sta; struct ieee80211_hdr *hdr; bool result; + struct ieee80211_chanctx_conf *chanctx_conf; sdata = vif_to_sdata(info->control.vif); if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) { - result = ieee80211_tx(sdata, skb, true); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (unlikely(!chanctx_conf)) { + dev_kfree_skb(skb); + return true; + } + result = ieee80211_tx(sdata, skb, true, + chanctx_conf->def.chan->band); } else { struct sk_buff_head skbs; @@ -2214,9 +2262,8 @@ void ieee80211_tx_pending(unsigned long data) /* functions for drivers to get certain frames */ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_ap *bss, - struct sk_buff *skb, - struct beacon_data *beacon) + struct ps_data *ps, + struct sk_buff *skb) { u8 *pos, *tim; int aid0 = 0; @@ -2224,27 +2271,27 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata, /* Generate bitmap for TIM only if there are any STAs in power save * mode. */ - if (atomic_read(&bss->num_sta_ps) > 0) + if (atomic_read(&ps->num_sta_ps) > 0) /* in the hope that this is faster than * checking byte-for-byte */ - have_bits = !bitmap_empty((unsigned long*)bss->tim, + have_bits = !bitmap_empty((unsigned long*)ps->tim, IEEE80211_MAX_AID+1); - if (bss->dtim_count == 0) - bss->dtim_count = sdata->vif.bss_conf.dtim_period - 1; + if (ps->dtim_count == 0) + ps->dtim_count = sdata->vif.bss_conf.dtim_period - 1; else - bss->dtim_count--; + ps->dtim_count--; tim = pos = (u8 *) skb_put(skb, 6); *pos++ = WLAN_EID_TIM; *pos++ = 4; - *pos++ = bss->dtim_count; + *pos++ = ps->dtim_count; *pos++ = sdata->vif.bss_conf.dtim_period; - if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf)) + if (ps->dtim_count == 0 && !skb_queue_empty(&ps->bc_buf)) aid0 = 1; - bss->dtim_bc_mc = aid0 == 1; + ps->dtim_bc_mc = aid0 == 1; if (have_bits) { /* Find largest even number N1 so that bits numbered 1 through @@ -2252,14 +2299,14 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata, * (N2 + 1) x 8 through 2007 are 0. */ n1 = 0; for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) { - if (bss->tim[i]) { + if (ps->tim[i]) { n1 = i & 0xfe; break; } } n2 = n1; for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) { - if (bss->tim[i]) { + if (ps->tim[i]) { n2 = i; break; } @@ -2269,7 +2316,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata, *pos++ = n1 | aid0; /* Part Virt Bitmap */ skb_put(skb, n2 - n1); - memcpy(pos, bss->tim + n1, n2 - n1 + 1); + memcpy(pos, ps->tim + n1, n2 - n1 + 1); tim[1] = n2 - n1 + 4; } else { @@ -2286,16 +2333,16 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, struct sk_buff *skb = NULL; struct ieee80211_tx_info *info; struct ieee80211_sub_if_data *sdata = NULL; - struct ieee80211_if_ap *ap = NULL; - struct beacon_data *beacon; - enum ieee80211_band band = local->oper_channel->band; + enum ieee80211_band band; struct ieee80211_tx_rate_control txrc; + struct ieee80211_chanctx_conf *chanctx_conf; rcu_read_lock(); sdata = vif_to_sdata(vif); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); - if (!ieee80211_sdata_running(sdata)) + if (!ieee80211_sdata_running(sdata) || !chanctx_conf) goto out; if (tim_offset) @@ -2304,8 +2351,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, *tim_length = 0; if (sdata->vif.type == NL80211_IFTYPE_AP) { - ap = &sdata->u.ap; - beacon = rcu_dereference(ap->beacon); + struct ieee80211_if_ap *ap = &sdata->u.ap; + struct beacon_data *beacon = rcu_dereference(ap->beacon); + if (beacon) { /* * headroom, head length, @@ -2329,14 +2377,12 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, * of the tim bitmap in mac80211 and the driver. */ if (local->tim_in_locked_section) { - ieee80211_beacon_add_tim(sdata, ap, skb, - beacon); + ieee80211_beacon_add_tim(sdata, &ap->ps, skb); } else { unsigned long flags; spin_lock_irqsave(&local->tim_lock, flags); - ieee80211_beacon_add_tim(sdata, ap, skb, - beacon); + ieee80211_beacon_add_tim(sdata, &ap->ps, skb); spin_unlock_irqrestore(&local->tim_lock, flags); } @@ -2412,6 +2458,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, *pos++ = WLAN_EID_SSID; *pos++ = 0x0; + band = chanctx_conf->def.chan->band; + if (ieee80211_add_srates_ie(sdata, skb, true, band) || mesh_add_ds_params_ie(skb, sdata) || ieee80211_add_ext_srates_ie(sdata, skb, true, band) || @@ -2429,6 +2477,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, goto out; } + band = chanctx_conf->def.chan->band; + info = IEEE80211_SKB_CB(skb); info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; @@ -2573,7 +2623,7 @@ EXPORT_SYMBOL(ieee80211_nullfunc_get); struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, const u8 *ssid, size_t ssid_len, - const u8 *ie, size_t ie_len) + size_t tailroom) { struct ieee80211_sub_if_data *sdata; struct ieee80211_local *local; @@ -2587,7 +2637,7 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw, ie_ssid_len = 2 + ssid_len; skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*hdr) + - ie_ssid_len + ie_len); + ie_ssid_len + tailroom); if (!skb) return NULL; @@ -2608,11 +2658,6 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw, memcpy(pos, ssid, ssid_len); pos += ssid_len; - if (ie) { - pos = skb_put(skb, ie_len); - memcpy(pos, ie, ie_len); - } - return skb; } EXPORT_SYMBOL(ieee80211_probereq_get); @@ -2656,29 +2701,40 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct sk_buff *skb = NULL; struct ieee80211_tx_data tx; struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_ap *bss = NULL; - struct beacon_data *beacon; + struct ps_data *ps; struct ieee80211_tx_info *info; + struct ieee80211_chanctx_conf *chanctx_conf; sdata = vif_to_sdata(vif); - bss = &sdata->u.ap; rcu_read_lock(); - beacon = rcu_dereference(bss->beacon); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + + if (!chanctx_conf) + goto out; - if (sdata->vif.type != NL80211_IFTYPE_AP || !beacon || !beacon->head) + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct beacon_data *beacon = + rcu_dereference(sdata->u.ap.beacon); + + if (!beacon || !beacon->head) + goto out; + + ps = &sdata->u.ap.ps; + } else { goto out; + } - if (bss->dtim_count != 0 || !bss->dtim_bc_mc) + if (ps->dtim_count != 0 || !ps->dtim_bc_mc) goto out; /* send buffered bc/mc only after DTIM beacon */ while (1) { - skb = skb_dequeue(&bss->ps_bc_buf); + skb = skb_dequeue(&ps->bc_buf); if (!skb) goto out; local->total_ps_buffered--; - if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) { + if (!skb_queue_empty(&ps->bc_buf) && skb->len >= 2) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; /* more buffered multicast/broadcast frames ==> set @@ -2696,7 +2752,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, info = IEEE80211_SKB_CB(skb); tx.flags |= IEEE80211_TX_PS_BUFFERED; - info->band = local->oper_channel->band; + info->band = chanctx_conf->def.chan->band; if (invoke_tx_handlers(&tx)) skb = NULL; @@ -2707,8 +2763,9 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, } EXPORT_SYMBOL(ieee80211_get_buffered_bc); -void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, int tid) +void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, int tid, + enum ieee80211_band band) { int ac = ieee802_1d_to_ac[tid & 7]; @@ -2725,6 +2782,6 @@ void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, * requirements are that we do not come into tx with bhs on. */ local_bh_disable(); - ieee80211_xmit(sdata, skb); + ieee80211_xmit(sdata, skb, band); local_bh_enable(); } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 0151ae33c4cd..f11e8c540db4 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -512,7 +512,7 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw) EXPORT_SYMBOL(ieee80211_wake_queues); void ieee80211_iterate_active_interfaces( - struct ieee80211_hw *hw, + struct ieee80211_hw *hw, u32 iter_flags, void (*iterator)(void *data, u8 *mac, struct ieee80211_vif *vif), void *data) @@ -530,6 +530,9 @@ void ieee80211_iterate_active_interfaces( default: break; } + if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && + !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) + continue; if (ieee80211_sdata_running(sdata)) iterator(data, sdata->vif.addr, &sdata->vif); @@ -537,7 +540,9 @@ void ieee80211_iterate_active_interfaces( sdata = rcu_dereference_protected(local->monitor_sdata, lockdep_is_held(&local->iflist_mtx)); - if (sdata) + if (sdata && + (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || + sdata->flags & IEEE80211_SDATA_IN_DRIVER)) iterator(data, sdata->vif.addr, &sdata->vif); mutex_unlock(&local->iflist_mtx); @@ -545,7 +550,7 @@ void ieee80211_iterate_active_interfaces( EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); void ieee80211_iterate_active_interfaces_atomic( - struct ieee80211_hw *hw, + struct ieee80211_hw *hw, u32 iter_flags, void (*iterator)(void *data, u8 *mac, struct ieee80211_vif *vif), void *data) @@ -563,13 +568,18 @@ void ieee80211_iterate_active_interfaces_atomic( default: break; } + if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && + !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) + continue; if (ieee80211_sdata_running(sdata)) iterator(data, sdata->vif.addr, &sdata->vif); } sdata = rcu_dereference(local->monitor_sdata); - if (sdata) + if (sdata && + (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || + sdata->flags & IEEE80211_SDATA_IN_DRIVER)) iterator(data, sdata->vif.addr, &sdata->vif); rcu_read_unlock(); @@ -769,6 +779,18 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, else elem_parse_failed = true; break; + case WLAN_EID_VHT_CAPABILITY: + if (elen >= sizeof(struct ieee80211_vht_cap)) + elems->vht_cap_elem = (void *)pos; + else + elem_parse_failed = true; + break; + case WLAN_EID_VHT_OPERATION: + if (elen >= sizeof(struct ieee80211_vht_operation)) + elems->vht_operation = (void *)pos; + else + elem_parse_failed = true; + break; case WLAN_EID_MESH_ID: elems->mesh_id = pos; elems->mesh_id_len = elen; @@ -837,7 +859,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, if (elem_parse_failed) elems->parse_error = true; else - set_bit(id, seen_elems); + __set_bit(id, seen_elems); left -= elen; pos += elen; @@ -860,6 +882,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_tx_queue_params qparam; + struct ieee80211_chanctx_conf *chanctx_conf; int ac; bool use_11b, enable_qos; int aCWmin, aCWmax; @@ -872,8 +895,12 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, memset(&qparam, 0, sizeof(qparam)); - use_11b = (local->oper_channel->band == IEEE80211_BAND_2GHZ) && + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + use_11b = (chanctx_conf && + chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ) && !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); + rcu_read_unlock(); /* * By default disable QoS in STA mode for old access points, which do @@ -952,7 +979,7 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, const size_t supp_rates_len, const u8 *supp_rates) { - struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *chanctx_conf; int i, have_higher_than_11mbit = 0; /* cf. IEEE 802.11 9.2.12 */ @@ -960,11 +987,16 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, if ((supp_rates[i] & 0x7f) * 5 > 110) have_higher_than_11mbit = 1; - if (local->oper_channel->band == IEEE80211_BAND_2GHZ && + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + + if (chanctx_conf && + chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ && have_higher_than_11mbit) sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; else sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; + rcu_read_unlock(); ieee80211_set_wmm_default(sdata, true); } @@ -996,7 +1028,7 @@ u32 ieee80211_mandatory_rates(struct ieee80211_local *local, } void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, - u16 transaction, u16 auth_alg, + u16 transaction, u16 auth_alg, u16 status, u8 *extra, size_t extra_len, const u8 *da, const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx) { @@ -1021,7 +1053,7 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, memcpy(mgmt->bssid, bssid, ETH_ALEN); mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); - mgmt->u.auth.status_code = cpu_to_le16(0); + mgmt->u.auth.status_code = cpu_to_le16(status); if (extra) memcpy(skb_put(skb, extra_len), extra, extra_len); @@ -1075,12 +1107,12 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, } int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, - const u8 *ie, size_t ie_len, + size_t buffer_len, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, u8 channel) { struct ieee80211_supported_band *sband; - u8 *pos; + u8 *pos = buffer, *end = buffer + buffer_len; size_t offset = 0, noffset; int supp_rates_len, i; u8 rates[32]; @@ -1091,8 +1123,6 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, if (WARN_ON_ONCE(!sband)) return 0; - pos = buffer; - num_rates = 0; for (i = 0; i < sband->n_bitrates; i++) { if ((BIT(i) & rate_mask) == 0) @@ -1102,6 +1132,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, supp_rates_len = min_t(int, num_rates, 8); + if (end - pos < 2 + supp_rates_len) + goto out_err; *pos++ = WLAN_EID_SUPP_RATES; *pos++ = supp_rates_len; memcpy(pos, rates, supp_rates_len); @@ -1118,6 +1150,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, before_extrates, ARRAY_SIZE(before_extrates), offset); + if (end - pos < noffset - offset) + goto out_err; memcpy(pos, ie + offset, noffset - offset); pos += noffset - offset; offset = noffset; @@ -1125,6 +1159,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, ext_rates_len = num_rates - supp_rates_len; if (ext_rates_len > 0) { + if (end - pos < 2 + ext_rates_len) + goto out_err; *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos++ = ext_rates_len; memcpy(pos, rates + supp_rates_len, ext_rates_len); @@ -1132,6 +1168,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, } if (channel && sband->band == IEEE80211_BAND_2GHZ) { + if (end - pos < 3) + goto out_err; *pos++ = WLAN_EID_DS_PARAMS; *pos++ = 1; *pos++ = channel; @@ -1150,14 +1188,19 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, noffset = ieee80211_ie_split(ie, ie_len, before_ht, ARRAY_SIZE(before_ht), offset); + if (end - pos < noffset - offset) + goto out_err; memcpy(pos, ie + offset, noffset - offset); pos += noffset - offset; offset = noffset; } - if (sband->ht_cap.ht_supported) + if (sband->ht_cap.ht_supported) { + if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) + goto out_err; pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); + } /* * If adding more here, adjust code in main.c @@ -1167,15 +1210,23 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, /* add any remaining custom IEs */ if (ie && ie_len) { noffset = ie_len; + if (end - pos < noffset - offset) + goto out_err; memcpy(pos, ie + offset, noffset - offset); pos += noffset - offset; } - if (sband->vht_cap.vht_supported) + if (sband->vht_cap.vht_supported) { + if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) + goto out_err; pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, sband->vht_cap.cap); + } return pos - buffer; + out_err: + WARN_ONCE(1, "not enough space for preq IEs\n"); + return pos - buffer; } struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, @@ -1188,14 +1239,8 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - size_t buf_len; - u8 *buf; u8 chan_no; - - /* FIXME: come up with a proper value */ - buf = kmalloc(200 + ie_len, GFP_KERNEL); - if (!buf) - return NULL; + int ies_len; /* * Do not send DS Channel parameter for directed probe requests @@ -1207,14 +1252,16 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, else chan_no = ieee80211_frequency_to_channel(chan->center_freq); - buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len, chan->band, - ratemask, chan_no); - skb = ieee80211_probereq_get(&local->hw, &sdata->vif, - ssid, ssid_len, - buf, buf_len); + ssid, ssid_len, 100 + ie_len); if (!skb) - goto out; + return NULL; + + ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), + skb_tailroom(skb), + ie, ie_len, chan->band, + ratemask, chan_no); + skb_put(skb, ies_len); if (dst) { mgmt = (struct ieee80211_mgmt *) skb->data; @@ -1224,9 +1271,6 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - out: - kfree(buf); - return skb; } @@ -1234,7 +1278,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, const u8 *ssid, size_t ssid_len, const u8 *ie, size_t ie_len, u32 ratemask, bool directed, bool no_cck, - struct ieee80211_channel *channel) + struct ieee80211_channel *channel, bool scan) { struct sk_buff *skb; @@ -1245,7 +1289,10 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, if (no_cck) IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_NO_CCK_RATE; - ieee80211_tx_skb(sdata, skb); + if (scan) + ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band); + else + ieee80211_tx_skb(sdata, skb); } } @@ -1308,6 +1355,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) { struct ieee80211_hw *hw = &local->hw; struct ieee80211_sub_if_data *sdata; + struct ieee80211_chanctx *ctx; struct sta_info *sta; int res, i; @@ -1380,6 +1428,46 @@ int ieee80211_reconfig(struct ieee80211_local *local) res = drv_add_interface(local, sdata); } + /* add channel contexts */ + if (local->use_chanctx) { + mutex_lock(&local->chanctx_mtx); + list_for_each_entry(ctx, &local->chanctx_list, list) + WARN_ON(drv_add_chanctx(local, ctx)); + mutex_unlock(&local->chanctx_mtx); + } + + list_for_each_entry(sdata, &local->interfaces, list) { + struct ieee80211_chanctx_conf *ctx_conf; + + if (!ieee80211_sdata_running(sdata)) + continue; + + mutex_lock(&local->chanctx_mtx); + ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (ctx_conf) { + ctx = container_of(ctx_conf, struct ieee80211_chanctx, + conf); + drv_assign_vif_chanctx(local, sdata, ctx); + } + mutex_unlock(&local->chanctx_mtx); + } + + sdata = rtnl_dereference(local->monitor_sdata); + if (sdata && local->use_chanctx && ieee80211_sdata_running(sdata)) { + struct ieee80211_chanctx_conf *ctx_conf; + + mutex_lock(&local->chanctx_mtx); + ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (ctx_conf) { + ctx = container_of(ctx_conf, struct ieee80211_chanctx, + conf); + drv_assign_vif_chanctx(local, sdata, ctx); + } + mutex_unlock(&local->chanctx_mtx); + } + /* add STAs back */ mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { @@ -1435,7 +1523,8 @@ int ieee80211_reconfig(struct ieee80211_local *local) BSS_CHANGED_BSSID | BSS_CHANGED_CQM | BSS_CHANGED_QOS | - BSS_CHANGED_IDLE; + BSS_CHANGED_IDLE | + BSS_CHANGED_TXPOWER; switch (sdata->vif.type) { case NL80211_IFTYPE_STATION: @@ -1450,11 +1539,15 @@ int ieee80211_reconfig(struct ieee80211_local *local) changed |= BSS_CHANGED_IBSS; /* fall through */ case NL80211_IFTYPE_AP: - changed |= BSS_CHANGED_SSID; + changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; - if (sdata->vif.type == NL80211_IFTYPE_AP) + if (sdata->vif.type == NL80211_IFTYPE_AP) { changed |= BSS_CHANGED_AP_PROBE_RESP; + if (rcu_access_pointer(sdata->u.ap.beacon)) + drv_start_ap(local, sdata); + } + /* fall through */ case NL80211_IFTYPE_MESH_POINT: changed |= BSS_CHANGED_BEACON | @@ -1553,8 +1646,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) * If this is for hw restart things are still running. * We may want to change that later, however. */ - if (!local->suspended) + if (!local->suspended) { + drv_restart_complete(local); return 0; + } #ifdef CONFIG_PM /* first set suspended false, then resuming */ @@ -1617,68 +1712,24 @@ void ieee80211_resume_disconnect(struct ieee80211_vif *vif) } EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); -static int check_mgd_smps(struct ieee80211_if_managed *ifmgd, - enum ieee80211_smps_mode *smps_mode) -{ - if (ifmgd->associated) { - *smps_mode = ifmgd->ap_smps; - - if (*smps_mode == IEEE80211_SMPS_AUTOMATIC) { - if (ifmgd->powersave) - *smps_mode = IEEE80211_SMPS_DYNAMIC; - else - *smps_mode = IEEE80211_SMPS_OFF; - } - - return 1; - } - - return 0; -} - -void ieee80211_recalc_smps(struct ieee80211_local *local) +void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_sub_if_data *sdata; - enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_OFF; - int count = 0; - - mutex_lock(&local->iflist_mtx); - - /* - * This function could be improved to handle multiple - * interfaces better, but right now it makes any - * non-station interfaces force SM PS to be turned - * off. If there are multiple station interfaces it - * could also use the best possible mode, e.g. if - * one is in static and the other in dynamic then - * dynamic is ok. - */ - - list_for_each_entry(sdata, &local->interfaces, list) { - if (!ieee80211_sdata_running(sdata)) - continue; - if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) - continue; - if (sdata->vif.type != NL80211_IFTYPE_STATION) - goto set; + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_chanctx *chanctx; - count += check_mgd_smps(&sdata->u.mgd, &smps_mode); + mutex_lock(&local->chanctx_mtx); - if (count > 1) { - smps_mode = IEEE80211_SMPS_OFF; - break; - } - } + chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); - if (smps_mode == local->smps_mode) + if (WARN_ON_ONCE(!chanctx_conf)) goto unlock; - set: - local->smps_mode = smps_mode; - /* changed flag is auto-detected for this */ - ieee80211_hw_config(local, 0); + chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); + ieee80211_recalc_smps_chanctx(local, chanctx); unlock: - mutex_unlock(&local->iflist_mtx); + mutex_unlock(&local->chanctx_mtx); } static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id) @@ -1818,8 +1869,8 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, __le32 tmp; *pos++ = WLAN_EID_VHT_CAPABILITY; - *pos++ = sizeof(struct ieee80211_vht_capabilities); - memset(pos, 0, sizeof(struct ieee80211_vht_capabilities)); + *pos++ = sizeof(struct ieee80211_vht_cap); + memset(pos, 0, sizeof(struct ieee80211_vht_cap)); /* capability flags */ tmp = cpu_to_le32(cap); @@ -1834,8 +1885,7 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, } u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, - struct ieee80211_channel *channel, - enum nl80211_channel_type channel_type, + const struct cfg80211_chan_def *chandef, u16 prot_mode) { struct ieee80211_ht_operation *ht_oper; @@ -1843,23 +1893,25 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, *pos++ = WLAN_EID_HT_OPERATION; *pos++ = sizeof(struct ieee80211_ht_operation); ht_oper = (struct ieee80211_ht_operation *)pos; - ht_oper->primary_chan = - ieee80211_frequency_to_channel(channel->center_freq); - switch (channel_type) { - case NL80211_CHAN_HT40MINUS: - ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; - break; - case NL80211_CHAN_HT40PLUS: - ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + ht_oper->primary_chan = ieee80211_frequency_to_channel( + chandef->chan->center_freq); + switch (chandef->width) { + case NL80211_CHAN_WIDTH_160: + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_80: + case NL80211_CHAN_WIDTH_40: + if (chandef->center_freq1 > chandef->chan->center_freq) + ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + else + ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; break; - case NL80211_CHAN_HT20: default: ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; break; } if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && - channel_type != NL80211_CHAN_NO_HT && - channel_type != NL80211_CHAN_HT20) + chandef->width != NL80211_CHAN_WIDTH_20_NOHT && + chandef->width != NL80211_CHAN_WIDTH_20) ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; ht_oper->operation_mode = cpu_to_le16(prot_mode); @@ -1873,13 +1925,17 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, return pos + sizeof(struct ieee80211_ht_operation); } -enum nl80211_channel_type -ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper) +void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, + struct ieee80211_ht_operation *ht_oper, + struct cfg80211_chan_def *chandef) { enum nl80211_channel_type channel_type; - if (!ht_oper) - return NL80211_CHAN_NO_HT; + if (!ht_oper) { + cfg80211_chandef_create(chandef, control_chan, + NL80211_CHAN_NO_HT); + return; + } switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_NONE: @@ -1895,7 +1951,7 @@ ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper) channel_type = NL80211_CHAN_NO_HT; } - return channel_type; + cfg80211_chandef_create(chandef, control_chan, channel_type); } int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, @@ -1977,3 +2033,84 @@ int ieee80211_ave_rssi(struct ieee80211_vif *vif) return ifmgd->ave_beacon_signal; } EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); + +u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) +{ + if (!mcs) + return 1; + + /* TODO: consider rx_highest */ + + if (mcs->rx_mask[3]) + return 4; + if (mcs->rx_mask[2]) + return 3; + if (mcs->rx_mask[1]) + return 2; + return 1; +} + +/** + * ieee80211_calculate_rx_timestamp - calculate timestamp in frame + * @local: mac80211 hw info struct + * @status: RX status + * @mpdu_len: total MPDU length (including FCS) + * @mpdu_offset: offset into MPDU to calculate timestamp at + * + * This function calculates the RX timestamp at the given MPDU offset, taking + * into account what the RX timestamp was. An offset of 0 will just normalize + * the timestamp to TSF at beginning of MPDU reception. + */ +u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, + struct ieee80211_rx_status *status, + unsigned int mpdu_len, + unsigned int mpdu_offset) +{ + u64 ts = status->mactime; + struct rate_info ri; + u16 rate; + + if (WARN_ON(!ieee80211_have_rx_timestamp(status))) + return 0; + + memset(&ri, 0, sizeof(ri)); + + /* Fill cfg80211 rate info */ + if (status->flag & RX_FLAG_HT) { + ri.mcs = status->rate_idx; + ri.flags |= RATE_INFO_FLAGS_MCS; + if (status->flag & RX_FLAG_40MHZ) + ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + if (status->flag & RX_FLAG_SHORT_GI) + ri.flags |= RATE_INFO_FLAGS_SHORT_GI; + } else if (status->flag & RX_FLAG_VHT) { + ri.flags |= RATE_INFO_FLAGS_VHT_MCS; + ri.mcs = status->rate_idx; + ri.nss = status->vht_nss; + if (status->flag & RX_FLAG_40MHZ) + ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + if (status->flag & RX_FLAG_80MHZ) + ri.flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; + if (status->flag & RX_FLAG_80P80MHZ) + ri.flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; + if (status->flag & RX_FLAG_160MHZ) + ri.flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; + if (status->flag & RX_FLAG_SHORT_GI) + ri.flags |= RATE_INFO_FLAGS_SHORT_GI; + } else { + struct ieee80211_supported_band *sband; + + sband = local->hw.wiphy->bands[status->band]; + ri.legacy = sband->bitrates[status->rate_idx].bitrate; + } + + rate = cfg80211_calculate_bitrate(&ri); + + /* rewind from end of MPDU */ + if (status->flag & RX_FLAG_MACTIME_END) + ts -= mpdu_len * 8 * 10 / rate; + + ts += mpdu_offset * 8 * 10 / rate; + + return ts; +} diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c new file mode 100644 index 000000000000..f311388aeedf --- /dev/null +++ b/net/mac80211/vht.c @@ -0,0 +1,35 @@ +/* + * VHT handling + * + * 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/ieee80211.h> +#include <linux/export.h> +#include <net/mac80211.h> +#include "ieee80211_i.h" + + +void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + struct ieee80211_vht_cap *vht_cap_ie, + struct ieee80211_sta_vht_cap *vht_cap) +{ + if (WARN_ON_ONCE(!vht_cap)) + return; + + memset(vht_cap, 0, sizeof(*vht_cap)); + + if (!vht_cap_ie || !sband->vht_cap.vht_supported) + return; + + vht_cap->vht_supported = true; + + vht_cap->cap = le32_to_cpu(vht_cap_ie->vht_cap_info); + + /* Copy peer MCS info, the driver might need them. */ + memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs, + sizeof(struct ieee80211_vht_mcs_info)); +} diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index cea06e9f26f4..906f00cd6d2f 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -160,31 +160,37 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, return ieee80211_downgrade_queue(sdata, skb); } +/** + * ieee80211_set_qos_hdr - Fill in the QoS header if there is one. + * + * @sdata: local subif + * @skb: packet to be updated + */ void ieee80211_set_qos_hdr(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (void *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + u8 *p; + u8 ack_policy, tid; - /* Fill in the QoS header if there is one. */ - if (ieee80211_is_data_qos(hdr->frame_control)) { - u8 *p = ieee80211_get_qos_ctl(hdr); - u8 ack_policy, tid; - - tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK; + if (!ieee80211_is_data_qos(hdr->frame_control)) + return; - /* preserve EOSP bit */ - ack_policy = *p & IEEE80211_QOS_CTL_EOSP; + p = ieee80211_get_qos_ctl(hdr); + tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK; - if (is_multicast_ether_addr(hdr->addr1) || - sdata->noack_map & BIT(tid)) { - ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK; - info->flags |= IEEE80211_TX_CTL_NO_ACK; - } + /* preserve EOSP bit */ + ack_policy = *p & IEEE80211_QOS_CTL_EOSP; - /* qos header is 2 bytes */ - *p++ = ack_policy | tid; - *p = ieee80211_vif_is_mesh(&sdata->vif) ? - (IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT >> 8) : 0; + if (is_multicast_ether_addr(hdr->addr1) || + sdata->noack_map & BIT(tid)) { + ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK; + info->flags |= IEEE80211_TX_CTL_NO_ACK; } + + /* qos header is 2 bytes */ + *p++ = ack_policy | tid; + *p = ieee80211_vif_is_mesh(&sdata->vif) ? + (IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT >> 8) : 0; } diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 8bd2f5c6a56e..c175ee866ff4 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -104,7 +104,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) */ if (status->flag & (RX_FLAG_MMIC_STRIPPED | RX_FLAG_IV_STRIPPED)) { if (status->flag & RX_FLAG_MMIC_ERROR) - goto mic_fail; + goto mic_fail_no_key; if (!(status->flag & RX_FLAG_IV_STRIPPED) && rx->key && rx->key->conf.cipher == WLAN_CIPHER_SUITE_TKIP) @@ -161,6 +161,9 @@ update_iv: return RX_CONTINUE; mic_fail: + rx->key->u.tkip.mic_failures++; + +mic_fail_no_key: /* * In some cases the key can be unset - e.g. a multicast packet, in * a driver that supports HW encryption. Send up the key idx only if |