diff options
Diffstat (limited to 'net/mac80211')
39 files changed, 966 insertions, 290 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index a952b7f8c648..8a91f6c0bb18 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -15,8 +15,12 @@ comment "CFG80211 needs to be enabled for MAC80211" if MAC80211 != n +config MAC80211_HAS_RC + def_bool n + config MAC80211_RC_PID bool "PID controller based rate control algorithm" if EMBEDDED + select MAC80211_HAS_RC ---help--- This option enables a TX rate control algorithm for mac80211 that uses a PID controller to select the TX @@ -24,12 +28,14 @@ config MAC80211_RC_PID config MAC80211_RC_MINSTREL bool "Minstrel" if EMBEDDED + select MAC80211_HAS_RC default y ---help--- This option enables the 'minstrel' TX rate control algorithm choice prompt "Default rate control algorithm" + depends on MAC80211_HAS_RC default MAC80211_RC_DEFAULT_MINSTREL ---help--- This option selects the default rate control algorithm @@ -62,6 +68,9 @@ config MAC80211_RC_DEFAULT endif +comment "Some wireless drivers require a rate control algorithm" + depends on MAC80211_HAS_RC=n + config MAC80211_MESH bool "Enable mac80211 mesh networking (pre-802.11s) support" depends on MAC80211 && EXPERIMENTAL @@ -212,8 +221,8 @@ config MAC80211_DRIVER_API_TRACER depends on EVENT_TRACING help Say Y here to make mac80211 register with the ftrace - framework for the driver API -- you can see which - driver methods it is calling then by looking at the - trace. + framework for the driver API -- you can then see which + driver methods it is calling and which API functions + drivers are calling by looking at the trace. - If unsure, say N. + If unsure, say Y. diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index a978e666ed6f..9598fdb4ad01 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -14,6 +14,7 @@ */ #include <linux/ieee80211.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -22,19 +23,20 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, u16 initiator, u16 reason) { struct ieee80211_local *local = sta->local; + struct tid_ampdu_rx *tid_rx; int i; - /* check if TID is in operational state */ spin_lock_bh(&sta->lock); - if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL) { + + /* check if TID is in operational state */ + if (!sta->ampdu_mlme.tid_active_rx[tid]) { spin_unlock_bh(&sta->lock); return; } - sta->ampdu_mlme.tid_state_rx[tid] = - HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - spin_unlock_bh(&sta->lock); + sta->ampdu_mlme.tid_active_rx[tid] = false; + + tid_rx = sta->ampdu_mlme.tid_rx[tid]; #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Rx BA session stop requested for %pM tid %u\n", @@ -46,61 +48,35 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, printk(KERN_DEBUG "HW problem - can not stop rx " "aggregation for tid %d\n", tid); - /* shutdown timer has not expired */ - if (initiator != WLAN_BACK_TIMER) - del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer); - /* check if this is a self generated aggregation halt */ - if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER) + if (initiator == WLAN_BACK_RECIPIENT) ieee80211_send_delba(sta->sdata, sta->sta.addr, tid, 0, reason); /* free the reordering buffer */ - for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) { - if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) { + for (i = 0; i < tid_rx->buf_size; i++) { + if (tid_rx->reorder_buf[i]) { /* release the reordered frames */ - dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]); - sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--; - sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL; + dev_kfree_skb(tid_rx->reorder_buf[i]); + tid_rx->stored_mpdu_num--; + tid_rx->reorder_buf[i] = NULL; } } - spin_lock_bh(&sta->lock); /* free resources */ - kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf); - kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_time); + kfree(tid_rx->reorder_buf); + kfree(tid_rx->reorder_time); + sta->ampdu_mlme.tid_rx[tid] = NULL; - if (!sta->ampdu_mlme.tid_rx[tid]->shutdown) { - kfree(sta->ampdu_mlme.tid_rx[tid]); - sta->ampdu_mlme.tid_rx[tid] = NULL; - } - - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE; spin_unlock_bh(&sta->lock); -} - -void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, - u16 initiator, u16 reason) -{ - struct sta_info *sta; - - rcu_read_lock(); - - sta = sta_info_get(sdata, ra); - if (!sta) { - rcu_read_unlock(); - return; - } - - __ieee80211_stop_rx_ba_session(sta, tid, initiator, reason); - rcu_read_unlock(); + del_timer_sync(&tid_rx->session_timer); + kfree(tid_rx); } /* * After accepting the AddBA Request we activated a timer, * resetting it after each frame that arrives from the originator. - * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed. */ static void sta_rx_agg_session_timer_expired(unsigned long data) { @@ -116,9 +92,8 @@ static void sta_rx_agg_session_timer_expired(unsigned long data) #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); #endif - ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->sta.addr, - (u16)*ptid, WLAN_BACK_TIMER, - WLAN_REASON_QSTA_TIMEOUT); + __ieee80211_stop_rx_ba_session(sta, *ptid, WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_TIMEOUT); } static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, @@ -193,7 +168,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, status = WLAN_STATUS_REQUEST_DECLINED; - if (test_sta_flags(sta, WLAN_STA_SUSPEND)) { + if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " "Denying ADDBA request\n"); @@ -231,7 +206,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, /* examine state machine */ spin_lock_bh(&sta->lock); - if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) { + if (sta->ampdu_mlme.tid_active_rx[tid]) { #ifdef CONFIG_MAC80211_HT_DEBUG if (net_ratelimit()) printk(KERN_DEBUG "unexpected AddBA Req from " @@ -293,7 +268,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, } /* change state and send addba resp */ - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL; + sta->ampdu_mlme.tid_active_rx[tid] = true; tid_agg_rx->dialog_token = dialog_token; tid_agg_rx->ssn = start_seq_num; tid_agg_rx->head_seq_num = start_seq_num; diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 5538e1b4a697..608063f11797 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -14,6 +14,7 @@ */ #include <linux/ieee80211.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -214,6 +215,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) int ret = 0; u16 start_seq_num; + trace_api_start_tx_ba_session(pubsta, tid); + if (WARN_ON(!local->ops->ampdu_action)) return -EINVAL; @@ -245,7 +248,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) return -EINVAL; } - if (test_sta_flags(sta, WLAN_STA_SUSPEND)) { + if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " "Denying BA session request\n"); @@ -414,7 +417,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, struct sta_info *sta, u16 tid) { #ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid); + printk(KERN_DEBUG "Aggregation is on for tid %d\n", tid); #endif spin_lock(&local->ampdu_lock); @@ -440,6 +443,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) struct sta_info *sta; u8 *state; + trace_api_start_tx_ba_cb(sdata, ra, tid); + if (tid >= STA_TID_NUM) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", @@ -541,6 +546,8 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; + trace_api_stop_tx_ba_session(pubsta, tid, initiator); + if (!local->ops->ampdu_action) return -EINVAL; @@ -558,6 +565,8 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) struct sta_info *sta; u8 *state; + trace_api_stop_tx_ba_cb(sdata, ra, tid); + if (tid >= STA_TID_NUM) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", @@ -674,7 +683,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, del_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); #ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid); + printk(KERN_DEBUG "switched off addBA timer for tid %d\n", tid); #endif /* CONFIG_MAC80211_HT_DEBUG */ if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index b7116ef84a3b..7dd7cda75cfa 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -9,6 +9,7 @@ #include <linux/ieee80211.h> #include <linux/nl80211.h> #include <linux/rtnetlink.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <linux/rcupdate.h> #include <net/cfg80211.h> @@ -1136,6 +1137,10 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy, return -EINVAL; } + /* enable WMM or activate new settings */ + local->hw.conf.flags |= IEEE80211_CONF_QOS; + drv_config(local, IEEE80211_CONF_CHANGE_QOS); + return 0; } @@ -1402,6 +1407,35 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, return 0; } +static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, + struct net_device *dev, + s32 rssi_thold, u32 rssi_hyst) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_vif *vif = &sdata->vif; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + + if (rssi_thold == bss_conf->cqm_rssi_thold && + rssi_hyst == bss_conf->cqm_rssi_hyst) + return 0; + + bss_conf->cqm_rssi_thold = rssi_thold; + bss_conf->cqm_rssi_hyst = rssi_hyst; + + if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) { + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + return 0; + } + + /* tell the driver upon association, unless already associated */ + if (sdata->u.mgd.associated) + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); + + return 0; +} + static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *dev, const u8 *addr, @@ -1506,4 +1540,5 @@ struct cfg80211_ops mac80211_config_ops = { .remain_on_channel = ieee80211_remain_on_channel, .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, .action = ieee80211_action, + .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, }; diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index d12e743cb4e1..97c9e46e859e 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -9,6 +9,7 @@ */ #include <linux/kobject.h> +#include <linux/slab.h> #include "ieee80211_i.h" #include "key.h" #include "debugfs.h" diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index b4ddb2f83914..20b2998fa0ed 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -13,6 +13,7 @@ #include <linux/interrupt.h> #include <linux/netdevice.h> #include <linux/rtnetlink.h> +#include <linux/slab.h> #include <linux/notifier.h> #include <net/mac80211.h> #include <net/cfg80211.h> @@ -99,6 +100,14 @@ static ssize_t ieee80211_if_fmt_##name( \ return scnprintf(buf, buflen, "%pM\n", sdata->field); \ } +#define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \ +static ssize_t ieee80211_if_fmt_##name( \ + const struct ieee80211_sub_if_data *sdata, \ + char *buf, int buflen) \ +{ \ + return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \ +} + #define __IEEE80211_IF_FILE(name, _write) \ static ssize_t ieee80211_if_read_##name(struct file *file, \ char __user *userbuf, \ @@ -139,6 +148,8 @@ IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ], /* STA attributes */ IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC); IEEE80211_IF_FILE(aid, u.mgd.aid, DEC); +IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC); +IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16); static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode smps_mode) @@ -275,6 +286,8 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD(bssid); DEBUGFS_ADD(aid); + DEBUGFS_ADD(last_beacon); + DEBUGFS_ADD(ave_beacon); DEBUGFS_ADD_MODE(smps, 0600); } diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index d92800bb2d2f..6bc9b07c3eda 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -57,7 +57,6 @@ STA_FILE(tx_filtered, tx_filtered_count, LU); STA_FILE(tx_retry_failed, tx_retry_failed, LU); STA_FILE(tx_retry_count, tx_retry_count, LU); STA_FILE(last_signal, last_signal, D); -STA_FILE(last_noise, last_noise, D); STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU); static ssize_t sta_flags_read(struct file *file, char __user *userbuf, @@ -120,7 +119,7 @@ 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[64 + STA_TID_NUM * 40], *p = buf; + char buf[71 + STA_TID_NUM * 40], *p = buf; int i; struct sta_info *sta = file->private_data; @@ -128,16 +127,16 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", sta->ampdu_mlme.dialog_token_allocator + 1); p += scnprintf(p, sizeof(buf) + buf - p, - "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tSSN\tpending\n"); + "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tSSN\tpending\n"); for (i = 0; i < STA_TID_NUM; i++) { p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", - sta->ampdu_mlme.tid_state_rx[i]); + sta->ampdu_mlme.tid_active_rx[i]); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", - sta->ampdu_mlme.tid_state_rx[i] ? + sta->ampdu_mlme.tid_active_rx[i] ? sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", - sta->ampdu_mlme.tid_state_rx[i] ? + sta->ampdu_mlme.tid_active_rx[i] ? sta->ampdu_mlme.tid_rx[i]->ssn : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", @@ -177,7 +176,7 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, if (htc->ht_supported) { p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); - PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDCP"); + PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); @@ -289,7 +288,6 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(tx_retry_failed); DEBUGFS_ADD(tx_retry_count); DEBUGFS_ADD(last_signal); - DEBUGFS_ADD(last_noise); DEBUGFS_ADD(wep_weak_iv_count); DEBUGFS_ADD(ht_capa); } diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index c3d844093a2f..9179196da264 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -84,16 +84,14 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local, } static inline u64 drv_prepare_multicast(struct ieee80211_local *local, - int mc_count, - struct dev_addr_list *mc_list) + struct netdev_hw_addr_list *mc_list) { u64 ret = 0; if (local->ops->prepare_multicast) - ret = local->ops->prepare_multicast(&local->hw, mc_count, - mc_list); + ret = local->ops->prepare_multicast(&local->hw, mc_list); - trace_drv_prepare_multicast(local, mc_count, ret); + trace_drv_prepare_multicast(local, mc_list->count, ret); return ret; } diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 41baf730a5c7..e209cb82ff29 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -32,6 +32,10 @@ static inline void trace_ ## name(proto) {} #define VIF_PR_FMT " vif:%s(%d)" #define VIF_PR_ARG __get_str(vif_name), __entry->vif_type +/* + * Tracing for driver callbacks. + */ + TRACE_EVENT(drv_start, TP_PROTO(struct ieee80211_local *local, int ret), @@ -766,6 +770,277 @@ TRACE_EVENT(drv_flush, LOCAL_PR_ARG, __entry->drop ) ); + +/* + * Tracing for API calls that drivers call. + */ + +TRACE_EVENT(api_start_tx_ba_session, + TP_PROTO(struct ieee80211_sta *sta, u16 tid), + + TP_ARGS(sta, tid), + + TP_STRUCT__entry( + STA_ENTRY + __field(u16, tid) + ), + + TP_fast_assign( + STA_ASSIGN; + __entry->tid = tid; + ), + + TP_printk( + STA_PR_FMT " tid:%d", + STA_PR_ARG, __entry->tid + ) +); + +TRACE_EVENT(api_start_tx_ba_cb, + TP_PROTO(struct ieee80211_sub_if_data *sdata, const u8 *ra, u16 tid), + + TP_ARGS(sdata, ra, tid), + + TP_STRUCT__entry( + VIF_ENTRY + __array(u8, ra, ETH_ALEN) + __field(u16, tid) + ), + + TP_fast_assign( + VIF_ASSIGN; + memcpy(__entry->ra, ra, ETH_ALEN); + __entry->tid = tid; + ), + + TP_printk( + VIF_PR_FMT " ra:%pM tid:%d", + VIF_PR_ARG, __entry->ra, __entry->tid + ) +); + +TRACE_EVENT(api_stop_tx_ba_session, + TP_PROTO(struct ieee80211_sta *sta, u16 tid, u16 initiator), + + TP_ARGS(sta, tid, initiator), + + TP_STRUCT__entry( + STA_ENTRY + __field(u16, tid) + __field(u16, initiator) + ), + + TP_fast_assign( + STA_ASSIGN; + __entry->tid = tid; + __entry->initiator = initiator; + ), + + TP_printk( + STA_PR_FMT " tid:%d initiator:%d", + STA_PR_ARG, __entry->tid, __entry->initiator + ) +); + +TRACE_EVENT(api_stop_tx_ba_cb, + TP_PROTO(struct ieee80211_sub_if_data *sdata, const u8 *ra, u16 tid), + + TP_ARGS(sdata, ra, tid), + + TP_STRUCT__entry( + VIF_ENTRY + __array(u8, ra, ETH_ALEN) + __field(u16, tid) + ), + + TP_fast_assign( + VIF_ASSIGN; + memcpy(__entry->ra, ra, ETH_ALEN); + __entry->tid = tid; + ), + + TP_printk( + VIF_PR_FMT " ra:%pM tid:%d", + VIF_PR_ARG, __entry->ra, __entry->tid + ) +); + +TRACE_EVENT(api_restart_hw, + TP_PROTO(struct ieee80211_local *local), + + TP_ARGS(local), + + TP_STRUCT__entry( + LOCAL_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT, + LOCAL_PR_ARG + ) +); + +TRACE_EVENT(api_beacon_loss, + TP_PROTO(struct ieee80211_sub_if_data *sdata), + + TP_ARGS(sdata), + + TP_STRUCT__entry( + VIF_ENTRY + ), + + TP_fast_assign( + VIF_ASSIGN; + ), + + TP_printk( + VIF_PR_FMT, + VIF_PR_ARG + ) +); + +TRACE_EVENT(api_connection_loss, + TP_PROTO(struct ieee80211_sub_if_data *sdata), + + TP_ARGS(sdata), + + TP_STRUCT__entry( + VIF_ENTRY + ), + + TP_fast_assign( + VIF_ASSIGN; + ), + + TP_printk( + VIF_PR_FMT, + VIF_PR_ARG + ) +); + +TRACE_EVENT(api_cqm_rssi_notify, + TP_PROTO(struct ieee80211_sub_if_data *sdata, + enum nl80211_cqm_rssi_threshold_event rssi_event), + + TP_ARGS(sdata, rssi_event), + + TP_STRUCT__entry( + VIF_ENTRY + __field(u32, rssi_event) + ), + + TP_fast_assign( + VIF_ASSIGN; + __entry->rssi_event = rssi_event; + ), + + TP_printk( + VIF_PR_FMT " event:%d", + VIF_PR_ARG, __entry->rssi_event + ) +); + +TRACE_EVENT(api_scan_completed, + TP_PROTO(struct ieee80211_local *local, bool aborted), + + TP_ARGS(local, aborted), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(bool, aborted) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->aborted = aborted; + ), + + TP_printk( + LOCAL_PR_FMT " aborted:%d", + LOCAL_PR_ARG, __entry->aborted + ) +); + +TRACE_EVENT(api_sta_block_awake, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, bool block), + + TP_ARGS(local, sta, block), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + __field(bool, block) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + __entry->block = block; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT " block:%d", + LOCAL_PR_ARG, STA_PR_FMT, __entry->block + ) +); + +/* + * Tracing for internal functions + * (which may also be called in response to driver calls) + */ + +TRACE_EVENT(wake_queue, + TP_PROTO(struct ieee80211_local *local, u16 queue, + enum queue_stop_reason reason), + + TP_ARGS(local, queue, reason), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u16, queue) + __field(u32, reason) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->queue = queue; + __entry->reason = reason; + ), + + TP_printk( + LOCAL_PR_FMT " queue:%d, reason:%d", + LOCAL_PR_ARG, __entry->queue, __entry->reason + ) +); + +TRACE_EVENT(stop_queue, + TP_PROTO(struct ieee80211_local *local, u16 queue, + enum queue_stop_reason reason), + + TP_ARGS(local, queue, reason), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u16, queue) + __field(u32, reason) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->queue = queue; + __entry->reason = reason; + ), + + TP_printk( + LOCAL_PR_FMT " queue:%d, reason:%d", + LOCAL_PR_ARG, __entry->queue, __entry->reason + ) +); #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index bb677a73b7c9..2ab106a0a491 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -175,8 +175,7 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, #endif /* CONFIG_MAC80211_HT_DEBUG */ if (initiator == WLAN_BACK_INITIATOR) - ieee80211_sta_stop_rx_ba_session(sdata, sta->sta.addr, tid, - WLAN_BACK_INITIATOR, 0); + __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_INITIATOR, 0); else { /* WLAN_BACK_RECIPIENT */ spin_lock_bh(&sta->lock); if (sta->ampdu_mlme.tid_state_tx[tid] & HT_ADDBA_REQUESTED_MSK) diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index f3e942486749..e6f3b0c7a71f 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -13,6 +13,7 @@ */ #include <linux/delay.h> +#include <linux/slab.h> #include <linux/if_ether.h> #include <linux/skbuff.h> #include <linux/if_arp.h> @@ -264,17 +265,16 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, sta->sta.supp_rates[band] = supp_rates | ieee80211_mandatory_rates(local, band); + if (sta->sta.supp_rates[band] != prev_rates) { #ifdef CONFIG_MAC80211_IBSS_DEBUG - if (sta->sta.supp_rates[band] != prev_rates) printk(KERN_DEBUG "%s: updated supp_rates set " - "for %pM based on beacon info (0x%llx | " - "0x%llx -> 0x%llx)\n", - sdata->name, - sta->sta.addr, - (unsigned long long) prev_rates, - (unsigned long long) supp_rates, - (unsigned long long) sta->sta.supp_rates[band]); + "for %pM based on beacon/probe_response " + "(0x%x -> 0x%x)\n", + sdata->name, sta->sta.addr, + prev_rates, sta->sta.supp_rates[band]); #endif + rate_control_rate_init(sta); + } rcu_read_unlock(); } else { rcu_read_unlock(); @@ -370,6 +370,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, sdata->name, mgmt->bssid); #endif ieee80211_sta_join_ibss(sdata, bss); + supp_rates = ieee80211_sta_get_rates(local, elems, band); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates, GFP_KERNEL); } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 241533e1bc03..c9712f35e596 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -317,6 +317,7 @@ enum ieee80211_sta_flags { IEEE80211_STA_MFP_ENABLED = BIT(6), IEEE80211_STA_UAPSD_ENABLED = BIT(7), IEEE80211_STA_NULLFUNC_ACKED = BIT(8), + IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), }; struct ieee80211_if_managed { @@ -327,7 +328,7 @@ struct ieee80211_if_managed { struct work_struct work; struct work_struct monitor_work; struct work_struct chswitch_work; - struct work_struct beacon_loss_work; + struct work_struct beacon_connection_loss_work; unsigned long probe_timeout; int probe_send_count; @@ -359,6 +360,24 @@ struct ieee80211_if_managed { int wmm_last_param_set; u8 use_4addr; + + /* Signal strength from the last Beacon frame in the current BSS. */ + int last_beacon_signal; + + /* + * Weighted average of the signal strength from Beacon frames in the + * current BSS. This is in units of 1/16 of the signal unit to maintain + * accuracy and to speed up calculations, i.e., the value need to be + * divided by 16 to get the actual value. + */ + int ave_beacon_signal; + + /* + * Last Beacon frame signal strength average (ave_beacon_signal / 16) + * that triggered a cqm event. 0 indicates that no event has been + * generated for the current association. + */ + int last_cqm_event_signal; }; enum ieee80211_ibss_request { @@ -646,8 +665,7 @@ struct ieee80211_local { struct work_struct recalc_smps; /* aggregated multicast list */ - struct dev_addr_list *mc_list; - int mc_count; + struct netdev_hw_addr_list mc_list; bool tim_in_locked_section; /* see ieee80211_beacon_get() */ @@ -745,6 +763,7 @@ struct ieee80211_local { int scan_channel_idx; int scan_ies_len; + unsigned long leave_oper_channel_time; enum mac80211_scan_state next_scan_state; struct delayed_work scan_work; struct ieee80211_sub_if_data *scan_sdata; @@ -1078,8 +1097,6 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode smps, const u8 *da, const u8 *bssid); -void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, - u16 tid, u16 initiator, u16 reason); void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, u16 initiator, u16 reason); void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta); @@ -1155,7 +1172,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, int powersave); void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, struct ieee80211_hdr *hdr); -void ieee80211_beacon_loss_work(struct work_struct *work); +void ieee80211_beacon_connection_loss_work(struct work_struct *work); void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, enum queue_stop_reason reason); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 0793d7a8d743..50deb017fd6e 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -10,6 +10,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/if_arp.h> #include <linux/netdevice.h> @@ -412,8 +413,7 @@ static int ieee80211_stop(struct net_device *dev) netif_addr_lock_bh(dev); spin_lock_bh(&local->filter_lock); - __dev_addr_unsync(&local->mc_list, &local->mc_count, - &dev->mc_list, &dev->mc_count); + __hw_addr_unsync(&local->mc_list, &dev->mc, dev->addr_len); spin_unlock_bh(&local->filter_lock); netif_addr_unlock_bh(dev); @@ -486,7 +486,7 @@ static int ieee80211_stop(struct net_device *dev) cancel_work_sync(&sdata->u.mgd.work); cancel_work_sync(&sdata->u.mgd.chswitch_work); cancel_work_sync(&sdata->u.mgd.monitor_work); - cancel_work_sync(&sdata->u.mgd.beacon_loss_work); + cancel_work_sync(&sdata->u.mgd.beacon_connection_loss_work); /* * When we get here, the interface is marked down. @@ -596,8 +596,7 @@ static void ieee80211_set_multicast_list(struct net_device *dev) sdata->flags ^= IEEE80211_SDATA_PROMISC; } spin_lock_bh(&local->filter_lock); - __dev_addr_sync(&local->mc_list, &local->mc_count, - &dev->mc_list, &dev->mc_count); + __hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len); spin_unlock_bh(&local->filter_lock); ieee80211_queue_work(&local->hw, &local->reconfig_filter); } @@ -815,6 +814,118 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, return 0; } +static void ieee80211_assign_perm_addr(struct ieee80211_local *local, + struct net_device *dev, + enum nl80211_iftype type) +{ + struct ieee80211_sub_if_data *sdata; + u64 mask, start, addr, val, inc; + u8 *m; + u8 tmp_addr[ETH_ALEN]; + int i; + + /* default ... something at least */ + memcpy(dev->perm_addr, local->hw.wiphy->perm_addr, ETH_ALEN); + + if (is_zero_ether_addr(local->hw.wiphy->addr_mask) && + local->hw.wiphy->n_addresses <= 1) + return; + + + mutex_lock(&local->iflist_mtx); + + switch (type) { + case NL80211_IFTYPE_MONITOR: + /* doesn't matter */ + break; + case NL80211_IFTYPE_WDS: + case NL80211_IFTYPE_AP_VLAN: + /* match up with an AP interface */ + list_for_each_entry(sdata, &local->interfaces, list) { + if (sdata->vif.type != NL80211_IFTYPE_AP) + continue; + memcpy(dev->perm_addr, sdata->vif.addr, ETH_ALEN); + break; + } + /* keep default if no AP interface present */ + break; + default: + /* assign a new address if possible -- try n_addresses first */ + for (i = 0; i < local->hw.wiphy->n_addresses; i++) { + bool used = false; + + list_for_each_entry(sdata, &local->interfaces, list) { + if (memcmp(local->hw.wiphy->addresses[i].addr, + sdata->vif.addr, ETH_ALEN) == 0) { + used = true; + break; + } + } + + if (!used) { + memcpy(dev->perm_addr, + local->hw.wiphy->addresses[i].addr, + ETH_ALEN); + break; + } + } + + /* try mask if available */ + if (is_zero_ether_addr(local->hw.wiphy->addr_mask)) + break; + + 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); + + if (__ffs64(mask) + hweight64(mask) != fls64(mask)) { + /* not a contiguous mask ... not handled now! */ + printk(KERN_DEBUG "not contiguous\n"); + break; + } + + m = local->hw.wiphy->perm_addr; + start = ((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); + + inc = 1ULL<<__ffs64(mask); + val = (start & mask); + addr = (start & ~mask) | (val & mask); + do { + bool used = false; + + tmp_addr[5] = addr >> 0*8; + tmp_addr[4] = addr >> 1*8; + tmp_addr[3] = addr >> 2*8; + tmp_addr[2] = addr >> 3*8; + tmp_addr[1] = addr >> 4*8; + tmp_addr[0] = addr >> 5*8; + + val += inc; + + list_for_each_entry(sdata, &local->interfaces, list) { + if (memcmp(tmp_addr, sdata->vif.addr, + ETH_ALEN) == 0) { + used = true; + break; + } + } + + if (!used) { + memcpy(dev->perm_addr, tmp_addr, ETH_ALEN); + break; + } + addr = (start & ~mask) | (val & mask); + } while (addr != start); + + break; + } + + mutex_unlock(&local->iflist_mtx); +} + int ieee80211_if_add(struct ieee80211_local *local, const char *name, struct net_device **new_dev, enum nl80211_iftype type, struct vif_params *params) @@ -844,8 +955,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, if (ret < 0) goto fail; - memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); - memcpy(ndev->perm_addr, ndev->dev_addr, ETH_ALEN); + ieee80211_assign_perm_addr(local, ndev, type); + memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN); SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy)); /* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */ diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 8160d9c5372e..e8f6e3b252d8 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -14,6 +14,7 @@ #include <linux/list.h> #include <linux/rcupdate.h> #include <linux/rtnetlink.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "ieee80211_i.h" #include "driver-ops.h" diff --git a/net/mac80211/led.c b/net/mac80211/led.c index 162a643f16b6..063aad944246 100644 --- a/net/mac80211/led.c +++ b/net/mac80211/led.c @@ -8,6 +8,7 @@ /* just for IFNAMSIZ */ #include <linux/if.h> +#include <linux/slab.h> #include "led.h" void ieee80211_led_rx(struct ieee80211_local *local) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 06c33b68d8e5..011ee85bcd57 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -71,7 +71,7 @@ void ieee80211_configure_filter(struct ieee80211_local *local) spin_lock_bh(&local->filter_lock); changed_flags = local->filter_flags ^ new_flags; - mc = drv_prepare_multicast(local, local->mc_count, local->mc_list); + mc = drv_prepare_multicast(local, &local->mc_list); spin_unlock_bh(&local->filter_lock); /* be a bit nasty */ @@ -225,11 +225,11 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, switch (sdata->vif.type) { case NL80211_IFTYPE_AP: sdata->vif.bss_conf.enable_beacon = - !!rcu_dereference(sdata->u.ap.beacon); + !!sdata->u.ap.beacon; break; case NL80211_IFTYPE_ADHOC: sdata->vif.bss_conf.enable_beacon = - !!rcu_dereference(sdata->u.ibss.presp); + !!sdata->u.ibss.presp; break; case NL80211_IFTYPE_MESH_POINT: sdata->vif.bss_conf.enable_beacon = true; @@ -309,6 +309,8 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); + trace_api_restart_hw(local); + /* use this reason, __ieee80211_resume will unblock it */ ieee80211_stop_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_SUSPEND); @@ -388,6 +390,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; INIT_LIST_HEAD(&local->interfaces); + + __hw_addr_init(&local->mc_list); + mutex_init(&local->iflist_mtx); mutex_init(&local->scan_mtx); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 61080c5fad50..7e93524459fc 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ +#include <linux/slab.h> #include <asm/unaligned.h> #include "ieee80211_i.h" #include "mesh.h" @@ -600,10 +601,10 @@ static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, struct ieee80211_rx_status *rx_status) { switch (mgmt->u.action.category) { - case MESH_PLINK_CATEGORY: + case WLAN_CATEGORY_MESH_PLINK: mesh_rx_plink_frame(sdata, mgmt, len, rx_status); break; - case MESH_PATH_SEL_CATEGORY: + case WLAN_CATEGORY_MESH_PATH_SEL: mesh_rx_path_sel_frame(sdata, mgmt, len); break; } @@ -749,9 +750,6 @@ ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_ACTION: - if (skb->len < IEEE80211_MIN_ACTION_SIZE) - return RX_DROP_MONITOR; - /* fall through */ case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: skb_queue_tail(&ifmsh->skb_queue, skb); diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 85562c59d7d6..c88087f1cd0f 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -209,8 +209,6 @@ struct mesh_rmc { #define MESH_MAX_MPATHS 1024 /* Pending ANA approval */ -#define MESH_PLINK_CATEGORY 30 -#define MESH_PATH_SEL_CATEGORY 32 #define MESH_PATH_SEL_ACTION 0 /* PERR reason codes */ diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index ce84237ebad3..d89ed7f2592b 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -7,6 +7,7 @@ * published by the Free Software Foundation. */ +#include <linux/slab.h> #include "mesh.h" #ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG @@ -131,7 +132,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); /* BSSID == SA */ memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); - mgmt->u.action.category = MESH_PATH_SEL_CATEGORY; + mgmt->u.action.category = WLAN_CATEGORY_MESH_PATH_SEL; mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION; switch (action) { @@ -224,7 +225,7 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, memcpy(mgmt->da, ra, ETH_ALEN); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); /* BSSID is left zeroed, wildcard value */ - mgmt->u.action.category = MESH_PATH_SEL_CATEGORY; + mgmt->u.action.category = WLAN_CATEGORY_MESH_PATH_SEL; mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION; ie_len = 15; pos = skb_put(skb, 2 + ie_len); @@ -391,7 +392,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, if (SN_GT(mpath->sn, orig_sn) || (mpath->sn == orig_sn && action == MPATH_PREQ && - new_metric > mpath->metric)) { + new_metric >= mpath->metric)) { process = false; fresh_info = false; } @@ -611,7 +612,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr, cpu_to_le32(orig_sn), 0, target_addr, - cpu_to_le32(target_sn), mpath->next_hop->sta.addr, hopcount, + cpu_to_le32(target_sn), next_hop, hopcount, ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), 0, sdata); rcu_read_unlock(); diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 2312efe04c62..181ffd6efd81 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -10,6 +10,7 @@ #include <linux/etherdevice.h> #include <linux/list.h> #include <linux/random.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <linux/string.h> #include <net/mac80211.h> diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 1a29c4a8139e..3cd5f7b5d693 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -6,6 +6,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/gfp.h> #include <linux/kernel.h> #include <linux/random.h> #include "ieee80211_i.h" @@ -171,7 +172,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, memcpy(mgmt->da, da, ETH_ALEN); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); /* BSSID is left zeroed, wildcard value */ - mgmt->u.action.category = MESH_PLINK_CATEGORY; + mgmt->u.action.category = WLAN_CATEGORY_MESH_PLINK; mgmt->u.action.u.plink_action.action_code = action; if (action == PLINK_CLOSE) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index be5f723d643a..35d850223a75 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -19,6 +19,7 @@ #include <linux/rtnetlink.h> #include <linux/pm_qos_params.h> #include <linux/crc32.h> +#include <linux/slab.h> #include <net/mac80211.h> #include <asm/unaligned.h> @@ -46,6 +47,13 @@ */ #define IEEE80211_PROBE_WAIT (HZ / 2) +/* + * Weight given to the latest Beacon frame when calculating average signal + * strength for Beacon frames received in the current BSS. This must be + * between 1 and 15. + */ +#define IEEE80211_SIGNAL_AVE_WEIGHT 3 + #define TMR_RUNNING_TIMER 0 #define TMR_RUNNING_CHANSW 1 @@ -203,7 +211,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, const u8 *bssid, u16 stype, u16 reason, - void *cookie) + void *cookie, bool send_frame) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -240,7 +248,11 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len); if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED)) IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - ieee80211_tx_skb(sdata, skb); + + if (send_frame) + ieee80211_tx_skb(sdata, skb); + else + kfree_skb(skb); } void ieee80211_send_pspoll(struct ieee80211_local *local, @@ -589,6 +601,9 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, int count; u8 *pos, uapsd_queues = 0; + if (!local->ops->conf_tx) + return; + if (local->hw.queues < 4) return; @@ -663,11 +678,15 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, params.aifs, params.cw_min, params.cw_max, params.txop, params.uapsd); #endif - if (drv_conf_tx(local, queue, ¶ms) && local->ops->conf_tx) + if (drv_conf_tx(local, queue, ¶ms)) printk(KERN_DEBUG "%s: failed to set TX queue " "parameters for queue %d\n", wiphy_name(local->hw.wiphy), queue); } + + /* enable WMM or activate new settings */ + local->hw.conf.flags |= IEEE80211_CONF_QOS; + drv_config(local, IEEE80211_CONF_CHANGE_QOS); } static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, @@ -728,6 +747,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.associated = cbss; memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN); + sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE; + /* just to be sure */ sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL | IEEE80211_STA_BEACON_POLL); @@ -753,6 +774,11 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, /* And the BSSID changed - we're associated now */ bss_info_changed |= BSS_CHANGED_BSSID; + /* Tell the driver to monitor connection quality (if supported) */ + if ((local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI) && + sdata->vif.bss_conf.cqm_rssi_thold) + bss_info_changed |= BSS_CHANGED_CQM; + ieee80211_bss_info_change_notify(sdata, bss_info_changed); mutex_lock(&local->iflist_mtx); @@ -764,7 +790,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, netif_carrier_on(sdata->dev); } -static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata) +static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, + bool remove_sta) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; @@ -837,7 +864,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata) changed |= BSS_CHANGED_BSSID; ieee80211_bss_info_change_notify(sdata, changed); - sta_info_destroy_addr(sdata, bssid); + if (remove_sta) + sta_info_destroy_addr(sdata, bssid); } void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, @@ -854,6 +882,9 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, if (is_multicast_ether_addr(hdr->addr1)) return; + if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) + return; + mod_timer(&sdata->u.mgd.conn_mon_timer, round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME)); } @@ -931,23 +962,72 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); } -void ieee80211_beacon_loss_work(struct work_struct *work) +static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_local *local = sdata->local; + u8 bssid[ETH_ALEN]; + + mutex_lock(&ifmgd->mtx); + if (!ifmgd->associated) { + mutex_unlock(&ifmgd->mtx); + return; + } + + memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); + + printk(KERN_DEBUG "Connection to AP %pM lost.\n", bssid); + + ieee80211_set_disassoc(sdata, true); + ieee80211_recalc_idle(local); + mutex_unlock(&ifmgd->mtx); + /* + * must be outside lock due to cfg80211, + * but that's not a problem. + */ + ieee80211_send_deauth_disassoc(sdata, bssid, + IEEE80211_STYPE_DEAUTH, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + NULL, true); +} + +void ieee80211_beacon_connection_loss_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, - u.mgd.beacon_loss_work); + u.mgd.beacon_connection_loss_work); - ieee80211_mgd_probe_ap(sdata, true); + if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) + __ieee80211_connection_loss(sdata); + else + ieee80211_mgd_probe_ap(sdata, true); } void ieee80211_beacon_loss(struct ieee80211_vif *vif) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_hw *hw = &sdata->local->hw; + + trace_api_beacon_loss(sdata); - ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work); + WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR); + ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } EXPORT_SYMBOL(ieee80211_beacon_loss); +void ieee80211_connection_loss(struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_hw *hw = &sdata->local->hw; + + trace_api_connection_loss(sdata); + + WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR)); + ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); +} +EXPORT_SYMBOL(ieee80211_connection_loss); + + static enum rx_mgmt_action __must_check ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len) @@ -968,7 +1048,7 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n", sdata->name, bssid, reason_code); - ieee80211_set_disassoc(sdata); + ieee80211_set_disassoc(sdata, true); ieee80211_recalc_idle(sdata->local); return RX_MGMT_CFG80211_DEAUTH; @@ -998,7 +1078,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n", sdata->name, mgmt->sa, reason_code); - ieee80211_set_disassoc(sdata); + ieee80211_set_disassoc(sdata, true); ieee80211_recalc_idle(sdata->local); return RX_MGMT_CFG80211_DISASSOC; } @@ -1290,6 +1370,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, struct ieee80211_rx_status *rx_status) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; size_t baselen; struct ieee802_11_elems elems; struct ieee80211_local *local = sdata->local; @@ -1325,6 +1406,41 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (memcmp(bssid, mgmt->bssid, ETH_ALEN) != 0) return; + /* Track average RSSI from the Beacon frames of the current AP */ + ifmgd->last_beacon_signal = rx_status->signal; + if (ifmgd->flags & IEEE80211_STA_RESET_SIGNAL_AVE) { + ifmgd->flags &= ~IEEE80211_STA_RESET_SIGNAL_AVE; + ifmgd->ave_beacon_signal = rx_status->signal; + ifmgd->last_cqm_event_signal = 0; + } else { + ifmgd->ave_beacon_signal = + (IEEE80211_SIGNAL_AVE_WEIGHT * rx_status->signal * 16 + + (16 - IEEE80211_SIGNAL_AVE_WEIGHT) * + ifmgd->ave_beacon_signal) / 16; + } + if (bss_conf->cqm_rssi_thold && + !(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) { + int sig = ifmgd->ave_beacon_signal / 16; + int last_event = ifmgd->last_cqm_event_signal; + int thold = bss_conf->cqm_rssi_thold; + int hyst = bss_conf->cqm_rssi_hyst; + if (sig < thold && + (last_event == 0 || sig < last_event - hyst)) { + ifmgd->last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + GFP_KERNEL); + } else if (sig > thold && + (last_event == 0 || sig > last_event + hyst)) { + ifmgd->last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + GFP_KERNEL); + } + } + if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG if (net_ratelimit()) { @@ -1610,7 +1726,7 @@ static void ieee80211_sta_work(struct work_struct *work) printk(KERN_DEBUG "No probe response from AP %pM" " after %dms, disconnecting.\n", bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ); - ieee80211_set_disassoc(sdata); + ieee80211_set_disassoc(sdata, true); ieee80211_recalc_idle(local); mutex_unlock(&ifmgd->mtx); /* @@ -1620,7 +1736,7 @@ static void ieee80211_sta_work(struct work_struct *work) ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, - NULL); + NULL, true); mutex_lock(&ifmgd->mtx); } } @@ -1637,7 +1753,8 @@ static void ieee80211_sta_bcn_mon_timer(unsigned long data) if (local->quiescing) return; - ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work); + ieee80211_queue_work(&sdata->local->hw, + &sdata->u.mgd.beacon_connection_loss_work); } static void ieee80211_sta_conn_mon_timer(unsigned long data) @@ -1689,7 +1806,7 @@ void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata) */ cancel_work_sync(&ifmgd->work); - cancel_work_sync(&ifmgd->beacon_loss_work); + cancel_work_sync(&ifmgd->beacon_connection_loss_work); if (del_timer_sync(&ifmgd->timer)) set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running); @@ -1723,7 +1840,8 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) INIT_WORK(&ifmgd->work, ieee80211_sta_work); INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work); - INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work); + INIT_WORK(&ifmgd->beacon_connection_loss_work, + ieee80211_beacon_connection_loss_work); setup_timer(&ifmgd->timer, ieee80211_sta_timer, (unsigned long) sdata); setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, @@ -1802,6 +1920,9 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_work *wk; u16 auth_alg; + if (req->local_state_change) + return 0; /* no need to update mac80211 state */ + switch (req->auth_type) { case NL80211_AUTHTYPE_OPEN_SYSTEM: auth_alg = WLAN_AUTH_OPEN; @@ -1910,7 +2031,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, } /* Trying to reassociate - clear previous association state */ - ieee80211_set_disassoc(sdata); + ieee80211_set_disassoc(sdata, true); } mutex_unlock(&ifmgd->mtx); @@ -2014,7 +2135,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, if (ifmgd->associated == req->bss) { bssid = req->bss->bssid; - ieee80211_set_disassoc(sdata); + ieee80211_set_disassoc(sdata, true); mutex_unlock(&ifmgd->mtx); } else { bool not_auth_yet = false; @@ -2057,9 +2178,9 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: deauthenticating from %pM by local choice (reason=%d)\n", sdata->name, bssid, req->reason_code); - ieee80211_send_deauth_disassoc(sdata, bssid, - IEEE80211_STYPE_DEAUTH, req->reason_code, - cookie); + ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH, + req->reason_code, cookie, + !req->local_state_change); ieee80211_recalc_idle(sdata->local); @@ -2071,6 +2192,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, void *cookie) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 bssid[ETH_ALEN]; mutex_lock(&ifmgd->mtx); @@ -2088,13 +2210,15 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n", sdata->name, req->bss->bssid, req->reason_code); - ieee80211_set_disassoc(sdata); + memcpy(bssid, req->bss->bssid, ETH_ALEN); + ieee80211_set_disassoc(sdata, false); mutex_unlock(&ifmgd->mtx); ieee80211_send_deauth_disassoc(sdata, req->bss->bssid, IEEE80211_STYPE_DISASSOC, req->reason_code, - cookie); + cookie, !req->local_state_change); + sta_info_destroy_addr(sdata, bssid); ieee80211_recalc_idle(sdata->local); @@ -2135,3 +2259,15 @@ int ieee80211_mgd_action(struct ieee80211_sub_if_data *sdata, *cookie = (unsigned long) skb; return 0; } + +void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, + enum nl80211_cqm_rssi_threshold_event rssi_event, + gfp_t gfp) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + trace_api_cqm_rssi_notify(sdata, rssi_event); + + cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp); +} +EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 0e64484e861c..75202b295a4e 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -46,7 +46,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw) if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { list_for_each_entry_rcu(sta, &local->sta_list, list) { - set_sta_flags(sta, WLAN_STA_SUSPEND); + set_sta_flags(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions(sta); } } diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 0b299d236fa1..6d0bd198af19 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -10,6 +10,7 @@ #include <linux/kernel.h> #include <linux/rtnetlink.h> +#include <linux/slab.h> #include "rate.h" #include "ieee80211_i.h" #include "debugfs.h" diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 6e5d68b4e427..f65ce6dcc8e2 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -50,6 +50,7 @@ #include <linux/debugfs.h> #include <linux/random.h> #include <linux/ieee80211.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "rate.h" #include "rc80211_minstrel.h" @@ -541,7 +542,7 @@ minstrel_free(void *priv) kfree(priv); } -static struct rate_control_ops mac80211_minstrel = { +struct rate_control_ops mac80211_minstrel = { .name = "minstrel", .tx_status = minstrel_tx_status, .get_rate = minstrel_get_rate, diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h index 38bf4168fc3a..0f5a83370aa6 100644 --- a/net/mac80211/rc80211_minstrel.h +++ b/net/mac80211/rc80211_minstrel.h @@ -80,7 +80,18 @@ struct minstrel_priv { unsigned int lookaround_rate_mrr; }; +struct minstrel_debugfs_info { + size_t len; + char buf[]; +}; + +extern struct rate_control_ops mac80211_minstrel; void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); void minstrel_remove_sta_debugfs(void *priv, void *priv_sta); +/* debugfs */ +int minstrel_stats_open(struct inode *inode, struct file *file); +ssize_t minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos); +int minstrel_stats_release(struct inode *inode, struct file *file); + #endif diff --git a/net/mac80211/rc80211_minstrel_debugfs.c b/net/mac80211/rc80211_minstrel_debugfs.c index a715d9454f64..241e76f3fdf2 100644 --- a/net/mac80211/rc80211_minstrel_debugfs.c +++ b/net/mac80211/rc80211_minstrel_debugfs.c @@ -49,24 +49,19 @@ #include <linux/skbuff.h> #include <linux/debugfs.h> #include <linux/ieee80211.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "rc80211_minstrel.h" -struct minstrel_stats_info { - struct minstrel_sta_info *mi; - char buf[4096]; - size_t len; -}; - -static int +int minstrel_stats_open(struct inode *inode, struct file *file) { struct minstrel_sta_info *mi = inode->i_private; - struct minstrel_stats_info *ms; + struct minstrel_debugfs_info *ms; unsigned int i, tp, prob, eprob; char *p; - ms = kmalloc(sizeof(*ms), GFP_KERNEL); + ms = kmalloc(sizeof(*ms) + 4096, GFP_KERNEL); if (!ms) return -ENOMEM; @@ -106,36 +101,19 @@ minstrel_stats_open(struct inode *inode, struct file *file) return 0; } -static ssize_t -minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *o) +ssize_t +minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *ppos) { - struct minstrel_stats_info *ms; - char *src; + struct minstrel_debugfs_info *ms; ms = file->private_data; - src = ms->buf; - - len = min(len, ms->len); - if (len <= *o) - return 0; - - src += *o; - len -= *o; - *o += len; - - if (copy_to_user(buf, src, len)) - return -EFAULT; - - return len; + return simple_read_from_buffer(buf, len, ppos, ms->buf, ms->len); } -static int +int minstrel_stats_release(struct inode *inode, struct file *file) { - struct minstrel_stats_info *ms = file->private_data; - - kfree(ms); - + kfree(file->private_data); return 0; } diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c index 2652a374974e..aeda65466f3e 100644 --- a/net/mac80211/rc80211_pid_algo.c +++ b/net/mac80211/rc80211_pid_algo.c @@ -13,6 +13,7 @@ #include <linux/types.h> #include <linux/skbuff.h> #include <linux/debugfs.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "rate.h" #include "mesh.h" diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c index 45667054a5f3..47438b4a9af5 100644 --- a/net/mac80211/rc80211_pid_debugfs.c +++ b/net/mac80211/rc80211_pid_debugfs.c @@ -12,6 +12,7 @@ #include <linux/netdevice.h> #include <linux/types.h> #include <linux/skbuff.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "rate.h" diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index b5c48de81d8b..72efbd87c1eb 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -10,6 +10,7 @@ */ #include <linux/jiffies.h> +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/skbuff.h> #include <linux/netdevice.h> @@ -38,7 +39,7 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, { if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) { if (likely(skb->len > FCS_LEN)) - skb_trim(skb, skb->len - FCS_LEN); + __pskb_trim(skb, skb->len - FCS_LEN); else { /* driver bug */ WARN_ON(1); @@ -178,14 +179,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, pos++; } - /* IEEE80211_RADIOTAP_DBM_ANTNOISE */ - if (local->hw.flags & IEEE80211_HW_NOISE_DBM) { - *pos = status->noise; - rthdr->it_present |= - cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE); - pos++; - } - /* IEEE80211_RADIOTAP_LOCK_QUALITY is missing */ /* IEEE80211_RADIOTAP_ANTENNA */ @@ -235,6 +228,12 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, 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)) { + dev_kfree_skb(origskb); + return NULL; + } + if (!local->monitors) { if (should_drop_frame(origskb, present_fcs_len)) { dev_kfree_skb(origskb); @@ -492,7 +491,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) if (ieee80211_is_action(hdr->frame_control)) { mgmt = (struct ieee80211_mgmt *)hdr; - if (mgmt->u.action.category != MESH_PLINK_CATEGORY) + if (mgmt->u.action.category != WLAN_CATEGORY_MESH_PLINK) return RX_DROP_MONITOR; return RX_CONTINUE; } @@ -722,14 +721,16 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx, tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK; - if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL) - goto dont_reorder; + spin_lock(&sta->lock); + + if (!sta->ampdu_mlme.tid_active_rx[tid]) + goto dont_reorder_unlock; tid_agg_rx = sta->ampdu_mlme.tid_rx[tid]; /* qos null data frames are excluded */ if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC))) - goto dont_reorder; + goto dont_reorder_unlock; /* new, potentially un-ordered, ampdu frame - process it */ @@ -741,15 +742,20 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx, /* if this mpdu is fragmented - terminate rx aggregation session */ sc = le16_to_cpu(hdr->seq_ctrl); if (sc & IEEE80211_SCTL_FRAG) { - ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->sta.addr, - tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP); + spin_unlock(&sta->lock); + __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_REQUIRE_SETUP); dev_kfree_skb(skb); return; } - if (ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, frames)) + if (ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, frames)) { + spin_unlock(&sta->lock); return; + } + dont_reorder_unlock: + spin_unlock(&sta->lock); dont_reorder: __skb_queue_tail(frames, skb); } @@ -896,6 +902,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) rx->key = key; return RX_CONTINUE; } else { + u8 keyid; /* * The device doesn't give us the IV so we won't be * able to look up the key. That's ok though, we @@ -918,7 +925,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) * no need to call ieee80211_wep_get_keyidx, * it verifies a bunch of things we've done already */ - keyidx = rx->skb->data[hdrlen + 3] >> 6; + skb_copy_bits(rx->skb, hdrlen + 3, &keyid, 1); + keyidx = keyid >> 6; rx->key = rcu_dereference(rx->sdata->keys[keyidx]); @@ -939,6 +947,11 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_MONITOR; } + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + + hdr = (struct ieee80211_hdr *)rx->skb->data; + /* Check for weak IVs if possible */ if (rx->sta && rx->key->conf.alg == ALG_WEP && ieee80211_is_data(hdr->frame_control) && @@ -1077,7 +1090,6 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) sta->rx_fragments++; sta->rx_bytes += rx->skb->len; sta->last_signal = status->signal; - sta->last_noise = status->noise; /* * Change STA power saving mode only at the end of a frame @@ -1240,6 +1252,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) } I802_DEBUG_INC(rx->local->rx_handlers_fragments); + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + seq = (sc & IEEE80211_SCTL_SEQ) >> 4; if (frag == 0) { @@ -1405,21 +1420,24 @@ 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); __le16 fc = hdr->frame_control; - int res; - res = ieee80211_drop_unencrypted(rx, fc); - if (unlikely(res)) - return res; + /* + * Pass through unencrypted frames if the hardware has + * decrypted them already. + */ + if (status->flag & RX_FLAG_DECRYPTED) + return 0; if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) { - if (unlikely(ieee80211_is_unicast_robust_mgmt_frame(rx->skb) && + if (unlikely(!ieee80211_has_protected(fc) && + ieee80211_is_unicast_robust_mgmt_frame(rx->skb) && rx->key)) return -EACCES; /* BIP does not use Protected field, so need to check MMIE */ if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb) && - ieee80211_get_mmie_keyidx(rx->skb) < 0 && - rx->key)) + ieee80211_get_mmie_keyidx(rx->skb) < 0)) return -EACCES; /* * When using MFP, Action frames are not allowed prior to @@ -1597,6 +1615,9 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx) skb->dev = dev; __skb_queue_head_init(&frame_list); + if (skb_linearize(skb)) + return RX_DROP_UNUSABLE; + ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr, rx->sdata->vif.type, rx->local->hw.extra_tx_headroom); @@ -1795,10 +1816,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) if (ieee80211_is_back_req(bar->frame_control)) { if (!rx->sta) return RX_DROP_MONITOR; + spin_lock(&rx->sta->lock); tid = le16_to_cpu(bar->control) >> 12; - if (rx->sta->ampdu_mlme.tid_state_rx[tid] - != HT_AGG_STATE_OPERATIONAL) + if (!rx->sta->ampdu_mlme.tid_active_rx[tid]) { + spin_unlock(&rx->sta->lock); return RX_DROP_MONITOR; + } tid_agg_rx = rx->sta->ampdu_mlme.tid_rx[tid]; start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4; @@ -1812,6 +1835,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) ieee80211_release_reorder_frames(hw, tid_agg_rx, start_seq_num, frames); kfree_skb(skb); + spin_unlock(&rx->sta->lock); return RX_QUEUED; } @@ -1973,6 +1997,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) goto handled; } break; + case WLAN_CATEGORY_MESH_PLINK: + case WLAN_CATEGORY_MESH_PATH_SEL: + if (ieee80211_vif_is_mesh(&sdata->vif)) + return ieee80211_mesh_rx_mgmt(sdata, rx->skb); + break; } /* @@ -2366,29 +2395,42 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; struct ieee80211_hdr *hdr; + __le16 fc; struct ieee80211_rx_data rx; int prepares; struct ieee80211_sub_if_data *prev = NULL; struct sk_buff *skb_new; struct sta_info *sta, *tmp; bool found_sta = false; + int err = 0; - hdr = (struct ieee80211_hdr *)skb->data; + fc = ((struct ieee80211_hdr *)skb->data)->frame_control; memset(&rx, 0, sizeof(rx)); rx.skb = skb; rx.local = local; - if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control)) + if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc)) local->dot11ReceivedFragmentCount++; if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning) || test_bit(SCAN_OFF_CHANNEL, &local->scanning))) rx.flags |= IEEE80211_RX_IN_SCAN; + if (ieee80211_is_mgmt(fc)) + err = skb_linearize(skb); + else + err = !pskb_may_pull(skb, ieee80211_hdrlen(fc)); + + if (err) { + dev_kfree_skb(skb); + return; + } + + hdr = (struct ieee80211_hdr *)skb->data; ieee80211_parse_qos(&rx); ieee80211_verify_alignment(&rx); - if (ieee80211_is_data(hdr->frame_control)) { + if (ieee80211_is_data(fc)) { for_each_sta_info(local, hdr->addr2, sta, tmp) { rx.sta = sta; found_sta = true; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index b822dce97867..e1a3defdf581 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -14,6 +14,9 @@ #include <linux/if_arp.h> #include <linux/rtnetlink.h> +#include <linux/pm_qos_params.h> +#include <net/sch_generic.h> +#include <linux/slab.h> #include <net/mac80211.h> #include "ieee80211_i.h" @@ -245,6 +248,8 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) struct ieee80211_local *local = hw_to_local(hw); bool was_hw_scan; + trace_api_scan_completed(local, aborted); + mutex_lock(&local->scan_mtx); /* @@ -321,6 +326,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) ieee80211_offchannel_stop_beaconing(local); + local->leave_oper_channel_time = 0; local->next_scan_state = SCAN_DECISION; local->scan_channel_idx = 0; @@ -425,11 +431,28 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, return rc; } +static unsigned long +ieee80211_scan_get_channel_time(struct ieee80211_channel *chan) +{ + /* + * TODO: channel switching also consumes quite some time, + * add that delay as well to get a better estimation + */ + if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) + return IEEE80211_PASSIVE_CHANNEL_TIME; + return IEEE80211_PROBE_DELAY + IEEE80211_CHANNEL_TIME; +} + static int ieee80211_scan_state_decision(struct ieee80211_local *local, unsigned long *next_delay) { bool associated = false; + bool tx_empty = true; + bool bad_latency; + bool listen_int_exceeded; + unsigned long min_beacon_int = 0; struct ieee80211_sub_if_data *sdata; + struct ieee80211_channel *next_chan; /* if no more bands/channels left, complete scan and advance to the idle state */ if (local->scan_channel_idx >= local->scan_req->n_channels) { @@ -437,7 +460,11 @@ static int ieee80211_scan_state_decision(struct ieee80211_local *local, return 1; } - /* check if at least one STA interface is associated */ + /* + * check if at least one STA interface is associated, + * check if at least one STA interface has pending tx frames + * and grab the lowest used beacon interval + */ mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) @@ -446,7 +473,16 @@ static int ieee80211_scan_state_decision(struct ieee80211_local *local, if (sdata->vif.type == NL80211_IFTYPE_STATION) { if (sdata->u.mgd.associated) { associated = true; - break; + + if (sdata->vif.bss_conf.beacon_int < + min_beacon_int || min_beacon_int == 0) + min_beacon_int = + sdata->vif.bss_conf.beacon_int; + + if (!qdisc_all_tx_empty(sdata->dev)) { + tx_empty = false; + break; + } } } } @@ -455,11 +491,34 @@ static int ieee80211_scan_state_decision(struct ieee80211_local *local, if (local->scan_channel) { /* * we're currently scanning a different channel, let's - * switch back to the operating channel now if at least - * one interface is associated. Otherwise just scan the - * next channel + * see if we can scan another channel without interfering + * with the current traffic situation. + * + * Since we don't know if the AP has pending frames for us + * we can only check for our tx queues and use the current + * pm_qos requirements for rx. Hence, if no tx traffic occurs + * at all we will scan as many channels in a row as the pm_qos + * latency allows us to. Additionally we also check for the + * currently negotiated listen interval to prevent losing + * frames unnecessarily. + * + * Otherwise switch back to the operating channel. */ - if (associated) + next_chan = local->scan_req->channels[local->scan_channel_idx]; + + bad_latency = time_after(jiffies + + ieee80211_scan_get_channel_time(next_chan), + local->leave_oper_channel_time + + usecs_to_jiffies(pm_qos_requirement(PM_QOS_NETWORK_LATENCY))); + + listen_int_exceeded = time_after(jiffies + + ieee80211_scan_get_channel_time(next_chan), + local->leave_oper_channel_time + + 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_ENTER_OPER_CHANNEL; else local->next_scan_state = SCAN_SET_CHANNEL; @@ -491,6 +550,9 @@ static void ieee80211_scan_state_leave_oper_channel(struct ieee80211_local *loca else *next_delay = HZ / 10; + /* remember when we left the operating channel */ + local->leave_oper_channel_time = jiffies; + /* advance to the next channel to be scanned */ local->next_scan_state = SCAN_SET_CHANNEL; } diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 56422d894351..ff0eb948917b 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -93,12 +93,18 @@ struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta; - sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]); + sta = rcu_dereference_check(local->sta_hash[STA_HASH(addr)], + rcu_read_lock_held() || + lockdep_is_held(&local->sta_lock) || + lockdep_is_held(&local->sta_mtx)); while (sta) { if (sta->sdata == sdata && memcmp(sta->sta.addr, addr, ETH_ALEN) == 0) break; - sta = rcu_dereference(sta->hnext); + sta = rcu_dereference_check(sta->hnext, + rcu_read_lock_held() || + lockdep_is_held(&local->sta_lock) || + lockdep_is_held(&local->sta_mtx)); } return sta; } @@ -113,13 +119,19 @@ struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta; - sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]); + sta = rcu_dereference_check(local->sta_hash[STA_HASH(addr)], + rcu_read_lock_held() || + lockdep_is_held(&local->sta_lock) || + lockdep_is_held(&local->sta_mtx)); while (sta) { if ((sta->sdata == sdata || sta->sdata->bss == sdata->bss) && memcmp(sta->sta.addr, addr, ETH_ALEN) == 0) break; - sta = rcu_dereference(sta->hnext); + sta = rcu_dereference_check(sta->hnext, + rcu_read_lock_held() || + lockdep_is_held(&local->sta_lock) || + lockdep_is_held(&local->sta_mtx)); } return sta; } @@ -238,9 +250,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, * enable session_timer's data differentiation. refer to * sta_rx_agg_session_timer_expired for useage */ sta->timer_to_tid[i] = i; - /* rx */ - sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE; - sta->ampdu_mlme.tid_rx[i] = NULL; /* tx */ sta->ampdu_mlme.tid_state_tx[i] = HT_AGG_STATE_IDLE; sta->ampdu_mlme.tid_tx[i] = NULL; @@ -607,7 +616,7 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) struct ieee80211_sub_if_data *sdata; struct sk_buff *skb; unsigned long flags; - int ret, i; + int ret; might_sleep(); @@ -617,6 +626,15 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) local = sta->local; sdata = sta->sdata; + /* + * Before removing the station from the driver and + * rate control, it might still start new aggregation + * sessions -- block that to make sure the tear-down + * will be sufficient. + */ + set_sta_flags(sta, WLAN_STA_BLOCK_BA); + ieee80211_sta_tear_down_BA_sessions(sta); + spin_lock_irqsave(&local->sta_lock, flags); ret = sta_info_hash_del(local, sta); /* this might still be the pending list ... which is fine */ @@ -633,9 +651,6 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) * may mean it is removed from hardware which requires that * the key->sta pointer is still valid, so flush the key todo * list here. - * - * ieee80211_key_todo() will synchronize_rcu() so after this - * nothing can reference this sta struct any more. */ ieee80211_key_todo(); @@ -667,11 +682,17 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) sdata = sta->sdata; } + /* + * At this point, after we wait for an RCU grace period, + * neither mac80211 nor the driver can reference this + * sta struct any more except by still existing timers + * associated with this station that we clean up below. + */ + synchronize_rcu(); + #ifdef CONFIG_MAC80211_MESH - if (ieee80211_vif_is_mesh(&sdata->vif)) { + if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_accept_plinks_update(sdata); - del_timer(&sta->plink_timer); - } #endif #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -698,50 +719,6 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) dev_kfree_skb_any(skb); - for (i = 0; i < STA_TID_NUM; i++) { - struct tid_ampdu_rx *tid_rx; - struct tid_ampdu_tx *tid_tx; - - spin_lock_bh(&sta->lock); - tid_rx = sta->ampdu_mlme.tid_rx[i]; - /* Make sure timer won't free the tid_rx struct, see below */ - if (tid_rx) - tid_rx->shutdown = true; - - spin_unlock_bh(&sta->lock); - - /* - * Outside spinlock - shutdown is true now so that the timer - * won't free tid_rx, we have to do that now. Can't let the - * timer do it because we have to sync the timer outside the - * lock that it takes itself. - */ - if (tid_rx) { - del_timer_sync(&tid_rx->session_timer); - kfree(tid_rx); - } - - /* - * No need to do such complications for TX agg sessions, the - * path leading to freeing the tid_tx struct goes via a call - * from the driver, and thus needs to look up the sta struct - * again, which cannot be found when we get here. Hence, we - * just need to delete the timer and free the aggregation - * info; we won't be telling the peer about it then but that - * doesn't matter if we're not talking to it again anyway. - */ - tid_tx = sta->ampdu_mlme.tid_tx[i]; - if (tid_tx) { - del_timer_sync(&tid_tx->addba_resp_timer); - /* - * STA removed while aggregation session being - * started? Bit odd, but purge frames anyway. - */ - skb_queue_purge(&tid_tx->pending); - kfree(tid_tx); - } - } - __sta_info_free(local, sta); return 0; @@ -980,6 +957,8 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + trace_api_sta_block_awake(sta->local, pubsta, block); + if (block) set_sta_flags(sta, WLAN_STA_PS_DRIVER); else diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 822d84522937..48a5e80957f0 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -35,8 +35,8 @@ * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next * frame to this station is transmitted. * @WLAN_STA_MFP: Management frame protection is used with this STA. - * @WLAN_STA_SUSPEND: Set/cleared during a suspend/resume cycle. - * Used to deny ADDBA requests (both TX and RX). + * @WLAN_STA_BLOCK_BA: Used to deny ADDBA requests (both TX and RX) + * during suspend/resume and station removal. * @WLAN_STA_PS_DRIVER: driver requires keeping this station in * power-save mode logically to flush frames that might still * be in the queues @@ -57,7 +57,7 @@ enum ieee80211_sta_info_flags { WLAN_STA_WDS = 1<<7, WLAN_STA_CLEAR_PS_FILT = 1<<9, WLAN_STA_MFP = 1<<10, - WLAN_STA_SUSPEND = 1<<11, + WLAN_STA_BLOCK_BA = 1<<11, WLAN_STA_PS_DRIVER = 1<<12, WLAN_STA_PSPOLL = 1<<13, WLAN_STA_DISASSOC = 1<<14, @@ -106,7 +106,6 @@ struct tid_ampdu_tx { * @buf_size: buffer size for incoming A-MPDUs * @timeout: reset timer value (in TUs). * @dialog_token: dialog token for aggregation session - * @shutdown: this session is being shut down due to STA removal */ struct tid_ampdu_rx { struct sk_buff **reorder_buf; @@ -118,7 +117,6 @@ struct tid_ampdu_rx { u16 buf_size; u16 timeout; u8 dialog_token; - bool shutdown; }; /** @@ -156,7 +154,7 @@ enum plink_state { */ struct sta_ampdu_mlme { /* rx */ - u8 tid_state_rx[STA_TID_NUM]; + bool tid_active_rx[STA_TID_NUM]; struct tid_ampdu_rx *tid_rx[STA_TID_NUM]; /* tx */ u8 tid_state_tx[STA_TID_NUM]; @@ -200,7 +198,6 @@ struct sta_ampdu_mlme { * @rx_fragments: number of received MPDUs * @rx_dropped: number of dropped MPDUs from this STA * @last_signal: signal of last received frame from this STA - * @last_noise: noise of last received 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 @@ -267,7 +264,6 @@ struct sta_info { unsigned long rx_fragments; unsigned long rx_dropped; int last_signal; - int last_noise; __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; /* Updated from TX status path only, no locking requirements */ diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 56d5b9a6ec5b..11805a3a626f 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -171,7 +171,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) struct net_device *prev_dev = NULL; struct sta_info *sta, *tmp; int retry_count = -1, i; - bool injected; + bool send_to_cooked; for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { /* the HW cannot have attempted that rate */ @@ -296,11 +296,15 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) /* this was a transmitted frame, but now we want to reuse it */ skb_orphan(skb); + /* Need to make a copy before skb->cb gets cleared */ + send_to_cooked = !!(info->flags & IEEE80211_TX_CTL_INJECTED) || + (type != IEEE80211_FTYPE_DATA); + /* * This is a bit racy but we can avoid a lot of work * with this test... */ - if (!local->monitors && !local->cooked_mntrs) { + if (!local->monitors && (!send_to_cooked || !local->cooked_mntrs)) { dev_kfree_skb(skb); return; } @@ -345,9 +349,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) /* for now report the total retry_count */ rthdr->data_retries = retry_count; - /* Need to make a copy before skb->cb gets cleared */ - injected = !!(info->flags & IEEE80211_TX_CTL_INJECTED); - /* XXX: is this sufficient for BPF? */ skb_set_mac_header(skb, 0); skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -362,8 +363,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) continue; if ((sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) && - !injected && - (type == IEEE80211_FTYPE_DATA)) + !send_to_cooked) continue; if (prev_dev) { diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index cbe53ed4fb0b..2cb77267f733 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -513,6 +513,8 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) else if (tx->sta && (key = rcu_dereference(tx->sta->key))) tx->key = key; else if (ieee80211_is_mgmt(hdr->frame_control) && + is_multicast_ether_addr(hdr->addr1) && + ieee80211_is_robust_mgmt_frame(hdr) && (key = rcu_dereference(tx->sdata->default_mgmt_key))) tx->key = key; else if ((key = rcu_dereference(tx->sdata->default_key))) @@ -1142,13 +1144,12 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) && (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) { - unsigned long flags; struct tid_ampdu_tx *tid_tx; qc = ieee80211_get_qos_ctl(hdr); tid = *qc & IEEE80211_QOS_CTL_TID_MASK; - spin_lock_irqsave(&tx->sta->lock, flags); + spin_lock(&tx->sta->lock); /* * XXX: This spinlock could be fairly expensive, but see the * comment in agg-tx.c:ieee80211_agg_tx_operational(). @@ -1173,7 +1174,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING; __skb_queue_tail(&tid_tx->pending, skb); } - spin_unlock_irqrestore(&tx->sta->lock, flags); + spin_unlock(&tx->sta->lock); if (unlikely(queued)) return TX_QUEUED; @@ -1991,6 +1992,7 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local, void ieee80211_tx_pending(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *)data; + struct ieee80211_sub_if_data *sdata; unsigned long flags; int i; bool txok; @@ -2010,14 +2012,12 @@ void ieee80211_tx_pending(unsigned long data) while (!skb_queue_empty(&local->pending[i])) { struct sk_buff *skb = __skb_dequeue(&local->pending[i]); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_sub_if_data *sdata; if (WARN_ON(!info->control.vif)) { kfree_skb(skb); continue; } - sdata = vif_to_sdata(info->control.vif); spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); @@ -2029,6 +2029,11 @@ void ieee80211_tx_pending(unsigned long data) if (!txok) break; } + + if (skb_queue_empty(&local->pending[i])) + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_wake_queue( + netdev_get_tx_queue(sdata->dev, i)); } spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index c453226f06b2..2b75b4fb68f4 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -270,6 +270,8 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; + trace_wake_queue(local, queue, reason); + if (WARN_ON(queue >= hw->queues)) return; @@ -279,13 +281,13 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, /* someone still has this queue stopped */ return; - if (!skb_queue_empty(&local->pending[queue])) + if (skb_queue_empty(&local->pending[queue])) { + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue)); + rcu_read_unlock(); + } else tasklet_schedule(&local->tx_pending_tasklet); - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue)); - rcu_read_unlock(); } void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, @@ -312,6 +314,8 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; + trace_stop_queue(local, queue, reason); + if (WARN_ON(queue >= hw->queues)) return; @@ -796,6 +800,11 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata) drv_conf_tx(local, queue, &qparam); } + + /* after reinitialize QoS TX queues setting to default, + * disable QoS at all */ + local->hw.conf.flags &= ~IEEE80211_CONF_QOS; + drv_config(local, IEEE80211_CONF_CHANGE_QOS); } void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, @@ -1097,9 +1106,9 @@ int ieee80211_reconfig(struct ieee80211_local *local) */ res = drv_start(local); if (res) { - WARN(local->suspended, "Harware became unavailable " - "upon resume. This is could be a software issue" - "prior to suspend or a hardware issue\n"); + WARN(local->suspended, "Hardware became unavailable " + "upon resume. This could be a software issue " + "prior to suspend or a hardware issue.\n"); return res; } @@ -1135,7 +1144,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { list_for_each_entry_rcu(sta, &local->sta_list, list) { - clear_sta_flags(sta, WLAN_STA_SUSPEND); + clear_sta_flags(sta, WLAN_STA_BLOCK_BA); } } diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 5d745f2d7236..5f3a4113bda1 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -17,6 +17,7 @@ #include <linux/err.h> #include <linux/mm.h> #include <linux/scatterlist.h> +#include <linux/slab.h> #include <asm/unaligned.h> #include <net/mac80211.h> diff --git a/net/mac80211/work.c b/net/mac80211/work.c index 1e1ea3007b06..bdb1d05b16fc 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -19,6 +19,7 @@ #include <linux/if_arp.h> #include <linux/etherdevice.h> #include <linux/crc32.h> +#include <linux/slab.h> #include <net/mac80211.h> #include <asm/unaligned.h> @@ -919,11 +920,16 @@ static void ieee80211_work_work(struct work_struct *work) run_again(local, jiffies + HZ/2); } - if (list_empty(&local->work_list) && local->scan_req) + mutex_lock(&local->scan_mtx); + + if (list_empty(&local->work_list) && local->scan_req && + !local->scanning) ieee80211_queue_delayed_work(&local->hw, &local->scan_work, round_jiffies_relative(0)); + mutex_unlock(&local->scan_mtx); + mutex_unlock(&local->work_mtx); ieee80211_recalc_idle(local); diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index f4971cd45c64..0adbcc941ac9 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -9,10 +9,10 @@ #include <linux/netdevice.h> #include <linux/types.h> -#include <linux/slab.h> #include <linux/skbuff.h> #include <linux/compiler.h> #include <linux/ieee80211.h> +#include <linux/gfp.h> #include <asm/unaligned.h> #include <net/mac80211.h> |
