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| author | Johannes Berg <johannes.berg@intel.com> | 2012-07-30 09:13:03 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-30 09:13:03 +0200 |
| commit | fcb06702f023a0e7b1e6ebf9746f34b610ca0508 (patch) | |
| tree | db022324c4978dd9af059be38822d23455a45f55 /net/mac80211 | |
| parent | 5e31fc0815a4e2c72b1b495fe7a0d8f9bfb9e4b4 (diff) | |
| parent | 9dbf5f55f8d35ff9aedc75267f4e4042aaf89755 (diff) | |
| download | op-kernel-dev-fcb06702f023a0e7b1e6ebf9746f34b610ca0508.zip op-kernel-dev-fcb06702f023a0e7b1e6ebf9746f34b610ca0508.tar.gz | |
Merge remote-tracking branch 'wireless/master' into mac80211
Diffstat (limited to 'net/mac80211')
40 files changed, 2150 insertions, 2002 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 8d249d7..63af254 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -107,6 +107,19 @@ config MAC80211_DEBUGFS Say N unless you know you need this. +config MAC80211_MESSAGE_TRACING + bool "Trace all mac80211 debug messages" + depends on MAC80211 + ---help--- + Select this option to have mac80211 register the + mac80211_msg trace subsystem with tracepoints to + collect all debugging messages, independent of + printing them into the kernel log. + + The overhead in this option is that all the messages + need to be present in the binary and formatted at + runtime for tracing. + menuconfig MAC80211_DEBUG_MENU bool "Select mac80211 debugging features" depends on MAC80211 @@ -140,26 +153,35 @@ config MAC80211_VERBOSE_DEBUG Do not select this option. -config MAC80211_HT_DEBUG - bool "Verbose HT debugging" +config MAC80211_MLME_DEBUG + bool "Verbose managed MLME output" depends on MAC80211_DEBUG_MENU ---help--- - This option enables 802.11n High Throughput features - debug tracing output. - - It should not be selected on production systems as some + Selecting this option causes mac80211 to print out + debugging messages for the managed-mode MLME. It + should not be selected on production systems as some of the messages are remotely triggerable. Do not select this option. -config MAC80211_TKIP_DEBUG - bool "Verbose TKIP debugging" +config MAC80211_STA_DEBUG + bool "Verbose station debugging" depends on MAC80211_DEBUG_MENU ---help--- Selecting this option causes mac80211 to print out - very verbose TKIP debugging messages. It should not - be selected on production systems as those messages - are remotely triggerable. + debugging messages for station addition/removal. + + Do not select this option. + +config MAC80211_HT_DEBUG + bool "Verbose HT debugging" + depends on MAC80211_DEBUG_MENU + ---help--- + This option enables 802.11n High Throughput features + debug tracing output. + + It should not be selected on production systems as some + of the messages are remotely triggerable. Do not select this option. @@ -174,7 +196,7 @@ config MAC80211_IBSS_DEBUG Do not select this option. -config MAC80211_VERBOSE_PS_DEBUG +config MAC80211_PS_DEBUG bool "Verbose powersave mode debugging" depends on MAC80211_DEBUG_MENU ---help--- @@ -186,7 +208,7 @@ config MAC80211_VERBOSE_PS_DEBUG Do not select this option. -config MAC80211_VERBOSE_MPL_DEBUG +config MAC80211_MPL_DEBUG bool "Verbose mesh peer link debugging" depends on MAC80211_DEBUG_MENU depends on MAC80211_MESH @@ -199,7 +221,7 @@ config MAC80211_VERBOSE_MPL_DEBUG Do not select this option. -config MAC80211_VERBOSE_MPATH_DEBUG +config MAC80211_MPATH_DEBUG bool "Verbose mesh path debugging" depends on MAC80211_DEBUG_MENU depends on MAC80211_MESH @@ -212,7 +234,7 @@ config MAC80211_VERBOSE_MPATH_DEBUG Do not select this option. -config MAC80211_VERBOSE_MHWMP_DEBUG +config MAC80211_MHWMP_DEBUG bool "Verbose mesh HWMP routing debugging" depends on MAC80211_DEBUG_MENU depends on MAC80211_MESH @@ -225,7 +247,7 @@ config MAC80211_VERBOSE_MHWMP_DEBUG Do not select this option. -config MAC80211_VERBOSE_MESH_SYNC_DEBUG +config MAC80211_MESH_SYNC_DEBUG bool "Verbose mesh mesh synchronization debugging" depends on MAC80211_DEBUG_MENU depends on MAC80211_MESH @@ -236,7 +258,7 @@ config MAC80211_VERBOSE_MESH_SYNC_DEBUG Do not select this option. -config MAC80211_VERBOSE_TDLS_DEBUG +config MAC80211_TDLS_DEBUG bool "Verbose TDLS debugging" depends on MAC80211_DEBUG_MENU ---help--- diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index 3e9d931..a7dd110 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -9,7 +9,6 @@ mac80211-y := \ scan.o offchannel.o \ ht.o agg-tx.o agg-rx.o \ ibss.o \ - work.o \ iface.o \ rate.o \ michael.o \ @@ -25,7 +24,7 @@ mac80211-y := \ wme.o \ event.o \ chan.o \ - driver-trace.o mlme.o + trace.o mlme.o mac80211-$(CONFIG_MAC80211_LEDS) += led.o mac80211-$(CONFIG_MAC80211_DEBUGFS) += \ @@ -43,7 +42,7 @@ mac80211-$(CONFIG_MAC80211_MESH) += \ mac80211-$(CONFIG_PM) += pm.o -CFLAGS_driver-trace.o := -I$(src) +CFLAGS_trace.o := -I$(src) # objects for PID algorithm rc80211_pid-y := rc80211_pid_algo.o @@ -59,4 +58,4 @@ mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc80211_pid-y) mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y) mac80211-$(CONFIG_MAC80211_RC_MINSTREL_HT) += $(rc80211_minstrel_ht-y) -ccflags-y += -D__CHECK_ENDIAN__ +ccflags-y += -D__CHECK_ENDIAN__ -DDEBUG diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index c649188..186d991 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -74,18 +74,17 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG + ht_dbg(sta->sdata, "Rx BA session stop requested for %pM tid %u %s reason: %d\n", sta->sta.addr, tid, initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator", (int)reason); -#endif /* CONFIG_MAC80211_HT_DEBUG */ if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP, &sta->sta, tid, NULL, 0)) - printk(KERN_DEBUG "HW problem - can not stop rx " - "aggregation for tid %d\n", tid); + sdata_info(sta->sdata, + "HW problem - can not stop rx aggregation for tid %d\n", + tid); /* check if this is a self generated aggregation halt */ if (initiator == WLAN_BACK_RECIPIENT && tx) @@ -160,9 +159,8 @@ static void sta_rx_agg_session_timer_expired(unsigned long data) } rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); -#endif + ht_dbg(sta->sdata, "rx session timer expired on tid %d\n", (u16)*ptid); + set_bit(*ptid, sta->ampdu_mlme.tid_rx_timer_expired); ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); } @@ -249,10 +247,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, status = WLAN_STATUS_REQUEST_DECLINED; if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Suspend in progress. " - "Denying ADDBA request\n"); -#endif + ht_dbg(sta->sdata, "Suspend in progress - Denying ADDBA request\n"); goto end_no_lock; } @@ -264,10 +259,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { status = WLAN_STATUS_INVALID_QOS_PARAM; -#ifdef CONFIG_MAC80211_HT_DEBUG - net_dbg_ratelimited("AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n", - mgmt->sa, tid, ba_policy, buf_size); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg_ratelimited(sta->sdata, + "AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n", + mgmt->sa, tid, ba_policy, buf_size); goto end_no_lock; } /* determine default buffer size */ @@ -282,10 +276,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, mutex_lock(&sta->ampdu_mlme.mtx); if (sta->ampdu_mlme.tid_rx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - net_dbg_ratelimited("unexpected AddBA Req from %pM on tid %u\n", - mgmt->sa, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg_ratelimited(sta->sdata, + "unexpected AddBA Req from %pM on tid %u\n", + mgmt->sa, tid); /* delete existing Rx BA session on the same tid */ ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, @@ -324,10 +317,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START, &sta->sta, tid, &start_seq_num, 0); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - + ht_dbg(sta->sdata, "Rx A-MPDU request on tid %d result %d\n", tid, ret); if (ret) { kfree(tid_agg_rx->reorder_buf); kfree(tid_agg_rx->reorder_time); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 7cf0715..d0deb3e 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -135,7 +135,8 @@ void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn) bar->control = cpu_to_le16(bar_control); bar->start_seq_num = cpu_to_le16(ssn); - IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | + IEEE80211_TX_CTL_REQ_TX_STATUS; ieee80211_tx_skb_tid(sdata, skb, tid); } EXPORT_SYMBOL(ieee80211_send_bar); @@ -184,10 +185,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, spin_unlock_bh(&sta->lock); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n", + ht_dbg(sta->sdata, "Tx BA session stop requested for %pM tid %u\n", sta->sta.addr, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ del_timer_sync(&tid_tx->addba_resp_timer); del_timer_sync(&tid_tx->session_timer); @@ -253,17 +252,13 @@ static void sta_addba_resp_timer_expired(unsigned long data) if (!tid_tx || test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) { rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "timer expired on tid %d but we are not " - "(or no longer) expecting addBA response there\n", - tid); -#endif + ht_dbg(sta->sdata, + "timer expired on tid %d but we are not (or no longer) expecting addBA response there\n", + tid); return; } -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); -#endif + ht_dbg(sta->sdata, "addBA response timer expired on tid %d\n", tid); ieee80211_stop_tx_ba_session(&sta->sta, tid); rcu_read_unlock(); @@ -323,8 +318,9 @@ ieee80211_agg_splice_packets(struct ieee80211_sub_if_data *sdata, ieee80211_stop_queue_agg(sdata, tid); - if (WARN(!tid_tx, "TID %d gone but expected when splicing aggregates" - " from the pending queue\n", tid)) + if (WARN(!tid_tx, + "TID %d gone but expected when splicing aggregates from the pending queue\n", + tid)) return; if (!skb_queue_empty(&tid_tx->pending)) { @@ -372,10 +368,8 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START, &sta->sta, tid, &start_seq_num, 0); if (ret) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - HW unavailable for" - " tid %d\n", tid); -#endif + ht_dbg(sdata, + "BA request denied - HW unavailable for tid %d\n", tid); spin_lock_bh(&sta->lock); ieee80211_agg_splice_packets(sdata, tid_tx, tid); ieee80211_assign_tid_tx(sta, tid, NULL); @@ -388,9 +382,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) /* activate the timer for the recipient's addBA response */ mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); -#endif + ht_dbg(sdata, "activated addBA response timer on tid %d\n", tid); spin_lock_bh(&sta->lock); sta->ampdu_mlme.last_addba_req_time[tid] = jiffies; @@ -437,9 +429,7 @@ static void sta_tx_agg_session_timer_expired(unsigned long data) rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "tx session timer expired on tid %d\n", (u16)*ptid); -#endif + ht_dbg(sta->sdata, "tx session timer expired on tid %d\n", (u16)*ptid); ieee80211_stop_tx_ba_session(&sta->sta, *ptid); } @@ -463,10 +453,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)) return -EINVAL; -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Open BA session requested for %pM tid %u\n", + ht_dbg(sdata, "Open BA session requested for %pM tid %u\n", pubsta->addr, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ if (sdata->vif.type != NL80211_IFTYPE_STATION && sdata->vif.type != NL80211_IFTYPE_MESH_POINT && @@ -476,10 +464,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, return -EINVAL; if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA sessions blocked. " - "Denying BA session request\n"); -#endif + ht_dbg(sdata, + "BA sessions blocked - Denying BA session request\n"); return -EINVAL; } @@ -497,10 +483,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, */ if (sta->sdata->vif.type == NL80211_IFTYPE_ADHOC && !sta->sta.ht_cap.ht_supported) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - IBSS STA %pM" - "does not advertise HT support\n", pubsta->addr); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg(sdata, + "BA request denied - IBSS STA %pM does not advertise HT support\n", + pubsta->addr); return -EINVAL; } @@ -520,12 +505,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_BURST_RETRIES && time_before(jiffies, sta->ampdu_mlme.last_addba_req_time[tid] + HT_AGG_RETRIES_PERIOD)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - " - "waiting a grace period after %d failed requests " - "on tid %u\n", + ht_dbg(sdata, + "BA request denied - waiting a grace period after %d failed requests on tid %u\n", sta->ampdu_mlme.addba_req_num[tid], tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ ret = -EBUSY; goto err_unlock_sta; } @@ -533,10 +515,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, tid_tx = rcu_dereference_protected_tid_tx(sta, tid); /* check if the TID is not in aggregation flow already */ if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - session is not " - "idle on tid %u\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg(sdata, + "BA request denied - session is not idle on tid %u\n", + tid); ret = -EAGAIN; goto err_unlock_sta; } @@ -591,9 +572,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, tid_tx = rcu_dereference_protected_tid_tx(sta, tid); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Aggregation is on for tid %d\n", tid); -#endif + ht_dbg(sta->sdata, "Aggregation is on for tid %d\n", tid); drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_TX_OPERATIONAL, @@ -627,10 +606,8 @@ 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) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif + ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n", + tid, STA_TID_NUM); return; } @@ -638,9 +615,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) sta = sta_info_get_bss(sdata, ra); if (!sta) { mutex_unlock(&local->sta_mtx); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %pM\n", ra); -#endif + ht_dbg(sdata, "Could not find station: %pM\n", ra); return; } @@ -648,9 +623,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (WARN_ON(!tid_tx)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA was not requested!\n"); -#endif + ht_dbg(sdata, "addBA was not requested!\n"); goto unlock; } @@ -750,25 +723,18 @@ 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) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif + ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n", + tid, STA_TID_NUM); return; } -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Stopping Tx BA session for %pM tid %d\n", - ra, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg(sdata, "Stopping Tx BA session for %pM tid %d\n", ra, tid); mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, ra); if (!sta) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %pM\n", ra); -#endif + ht_dbg(sdata, "Could not find station: %pM\n", ra); goto unlock; } @@ -777,9 +743,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx || !test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n"); -#endif + ht_dbg(sdata, "unexpected callback to A-MPDU stop\n"); goto unlock_sta; } @@ -855,17 +819,13 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, goto out; if (mgmt->u.action.u.addba_resp.dialog_token != tid_tx->dialog_token) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); -#endif + ht_dbg(sta->sdata, "wrong addBA response token, tid %d\n", tid); goto out; } del_timer_sync(&tid_tx->addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d\n", tid); -#endif + ht_dbg(sta->sdata, "switched off addBA timer for tid %d\n", tid); /* * addba_resp_timer may have fired before we got here, and @@ -874,11 +834,9 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, */ if (test_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state) || test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG + ht_dbg(sta->sdata, "got addBA resp for tid %d but we already gave up\n", tid); -#endif goto out; } diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 7d5108a..d41974a 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -20,31 +20,31 @@ #include "rate.h" #include "mesh.h" -static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name, - enum nl80211_iftype type, - u32 *flags, - struct vif_params *params) +static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, char *name, + enum nl80211_iftype type, + u32 *flags, + struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); - struct net_device *dev; + struct wireless_dev *wdev; struct ieee80211_sub_if_data *sdata; int err; - err = ieee80211_if_add(local, name, &dev, type, params); + err = ieee80211_if_add(local, name, &wdev, type, params); if (err) return ERR_PTR(err); if (type == NL80211_IFTYPE_MONITOR && flags) { - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); sdata->u.mntr_flags = *flags; } - return dev; + return wdev; } -static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) +static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { - ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev)); + ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); return 0; } @@ -353,6 +353,7 @@ void sta_set_rate_info_tx(struct sta_info *sta, static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; struct timespec uptime; sinfo->generation = sdata->local->sta_generation; @@ -388,7 +389,9 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; - sinfo->signal = (s8)sta->last_signal; + if (!local->ops->get_rssi || + drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) + sinfo->signal = (s8)sta->last_signal; sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); } @@ -517,7 +520,7 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, * network device. */ - rcu_read_lock(); + mutex_lock(&local->sta_mtx); if (sdata->vif.type == NL80211_IFTYPE_STATION) { sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); @@ -546,7 +549,7 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, data[i] = (u8)sinfo.signal_avg; i++; } else { - list_for_each_entry_rcu(sta, &local->sta_list, list) { + list_for_each_entry(sta, &local->sta_list, list) { /* Make sure this station belongs to the proper dev */ if (sta->sdata->dev != dev) continue; @@ -603,7 +606,7 @@ do_survey: else data[i++] = -1LL; - rcu_read_unlock(); + mutex_unlock(&local->sta_mtx); if (WARN_ON(i != STA_STATS_LEN)) return; @@ -629,10 +632,11 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, int idx, u8 *mac, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; int ret = -ENOENT; - rcu_read_lock(); + mutex_lock(&local->sta_mtx); sta = sta_info_get_by_idx(sdata, idx); if (sta) { @@ -641,7 +645,7 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, sta_set_sinfo(sta, sinfo); } - rcu_read_unlock(); + mutex_unlock(&local->sta_mtx); return ret; } @@ -658,10 +662,11 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, u8 *mac, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; int ret = -ENOENT; - rcu_read_lock(); + mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, mac); if (sta) { @@ -669,11 +674,54 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, sta_set_sinfo(sta, sinfo); } - rcu_read_unlock(); + mutex_unlock(&local->sta_mtx); return ret; } +static int ieee80211_set_channel(struct wiphy *wiphy, + struct net_device *netdev, + struct ieee80211_channel *chan, + enum nl80211_channel_type channel_type) +{ + 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; + } + + if (!ieee80211_set_channel_type(local, sdata, channel_type)) + return -EBUSY; + + local->oper_channel = chan; + + /* auto-detects changes */ + ieee80211_hw_config(local, 0); + + 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); +} + static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, const u8 *resp, size_t resp_len) { @@ -788,6 +836,11 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, if (old) return -EALREADY; + err = ieee80211_set_channel(wiphy, dev, params->channel, + params->channel_type); + if (err) + return err; + /* * Apply control port protocol, this allows us to * not encrypt dynamic WEP control frames. @@ -864,6 +917,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) kfree_rcu(old, rcu_head); + sta_info_flush(sdata->local, sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); return 0; @@ -1482,7 +1536,7 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy, if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) conf->dot11MeshTTL = nconf->dot11MeshTTL; if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) - conf->dot11MeshTTL = nconf->element_ttl; + conf->element_ttl = nconf->element_ttl; if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) conf->auto_open_plinks = nconf->auto_open_plinks; if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) @@ -1517,17 +1571,16 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy, * announcements, so require this ifmsh to also be a root node * */ if (nconf->dot11MeshGateAnnouncementProtocol && - !conf->dot11MeshHWMPRootMode) { - conf->dot11MeshHWMPRootMode = 1; + !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { + conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; ieee80211_mesh_root_setup(ifmsh); } conf->dot11MeshGateAnnouncementProtocol = nconf->dot11MeshGateAnnouncementProtocol; } - if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) { + if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) conf->dot11MeshHWMPRannInterval = nconf->dot11MeshHWMPRannInterval; - } if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) conf->dot11MeshForwarding = nconf->dot11MeshForwarding; if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { @@ -1543,6 +1596,15 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy, sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); } + if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) + conf->dot11MeshHWMPactivePathToRootTimeout = + nconf->dot11MeshHWMPactivePathToRootTimeout; + if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) + conf->dot11MeshHWMProotInterval = + nconf->dot11MeshHWMProotInterval; + if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) + conf->dot11MeshHWMPconfirmationInterval = + nconf->dot11MeshHWMPconfirmationInterval; return 0; } @@ -1558,6 +1620,12 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, err = copy_mesh_setup(ifmsh, setup); if (err) return err; + + err = ieee80211_set_channel(wiphy, dev, setup->channel, + setup->channel_type); + if (err) + return err; + ieee80211_start_mesh(sdata); return 0; @@ -1674,54 +1742,7 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy, return -EINVAL; } - return 0; -} - -static int ieee80211_set_channel(struct wiphy *wiphy, - struct net_device *netdev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type) -{ - struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_sub_if_data *sdata = NULL; - struct ieee80211_channel *old_oper; - enum nl80211_channel_type old_oper_type; - enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT; - - 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) - return -EBUSY; - if (!sdata && local->_oper_channel_type == channel_type) - return 0; - break; - case CHAN_MODE_UNDEFINED: - break; - } - - if (sdata) - old_vif_oper_type = sdata->vif.bss_conf.channel_type; - old_oper_type = local->_oper_channel_type; - - if (!ieee80211_set_channel_type(local, sdata, channel_type)) - return -EBUSY; - - old_oper = local->oper_channel; - local->oper_channel = chan; - - /* Update driver if changes were actually made. */ - if ((old_oper != local->oper_channel) || - (old_oper_type != local->_oper_channel_type)) - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - - if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR && - old_vif_oper_type != sdata->vif.bss_conf.channel_type) - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); return 0; } @@ -1743,10 +1764,11 @@ static int ieee80211_resume(struct wiphy *wiphy) #endif static int ieee80211_scan(struct wiphy *wiphy, - struct net_device *dev, struct cfg80211_scan_request *req) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata; + + sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); switch (ieee80211_vif_type_p2p(&sdata->vif)) { case NL80211_IFTYPE_STATION: @@ -2111,143 +2133,291 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, return 0; } -static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local, - struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type chantype, - unsigned int duration, u64 *cookie) +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) { + struct ieee80211_roc_work *roc, *tmp; + bool queued = false; int ret; - u32 random_cookie; lockdep_assert_held(&local->mtx); - if (local->hw_roc_cookie) - return -EBUSY; - /* must be nonzero */ - random_cookie = random32() | 1; - - *cookie = random_cookie; - local->hw_roc_dev = dev; - local->hw_roc_cookie = random_cookie; - local->hw_roc_channel = chan; - local->hw_roc_channel_type = chantype; - local->hw_roc_duration = duration; - ret = drv_remain_on_channel(local, chan, chantype, duration); + 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; + roc->mgmt_tx_cookie = (unsigned long)txskb; + roc->sdata = sdata; + INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); + INIT_LIST_HEAD(&roc->dependents); + + /* if there's one pending or we're scanning, queue this one */ + if (!list_empty(&local->roc_list) || local->scanning) + goto out_check_combine; + + /* if not HW assist, just queue & schedule work */ + if (!local->ops->remain_on_channel) { + ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); + goto out_queue; + } + + /* otherwise actually kick it off here (for error handling) */ + + /* + * If the duration is zero, then the driver + * wouldn't actually do anything. Set it to + * 10 for now. + * + * TODO: cancel the off-channel operation + * when we get the SKB's TX status and + * the wait time was zero before. + */ + if (!duration) + duration = 10; + + ret = drv_remain_on_channel(local, channel, channel_type, duration); if (ret) { - local->hw_roc_channel = NULL; - local->hw_roc_cookie = 0; + kfree(roc); + return ret; } - return ret; + roc->started = true; + goto out_queue; + + out_check_combine: + list_for_each_entry(tmp, &local->roc_list, list) { + if (tmp->chan != channel || tmp->chan_type != channel_type) + continue; + + /* + * Extend this ROC if possible: + * + * If it hasn't started yet, just increase the duration + * and add the new one to the list of dependents. + */ + if (!tmp->started) { + list_add_tail(&roc->list, &tmp->dependents); + tmp->duration = max(tmp->duration, roc->duration); + queued = true; + break; + } + + /* If it has already started, it's more difficult ... */ + if (local->ops->remain_on_channel) { + unsigned long j = jiffies; + + /* + * In the offloaded ROC case, if it hasn't begun, add + * this new one to the dependent list to be handled + * when the the master one begins. If it has begun, + * check that there's still a minimum time left and + * if so, start this one, transmitting the frame, but + * add it to the list directly after this one with a + * a reduced time so we'll ask the driver to execute + * it right after finishing the previous one, in the + * hope that it'll also be executed right afterwards, + * effectively extending the old one. + * If there's no minimum time left, just add it to the + * normal list. + */ + if (!tmp->hw_begun) { + list_add_tail(&roc->list, &tmp->dependents); + queued = true; + break; + } + + if (time_before(j + IEEE80211_ROC_MIN_LEFT, + tmp->hw_start_time + + msecs_to_jiffies(tmp->duration))) { + int new_dur; + + ieee80211_handle_roc_started(roc); + + new_dur = roc->duration - + jiffies_to_msecs(tmp->hw_start_time + + msecs_to_jiffies( + tmp->duration) - + j); + + if (new_dur > 0) { + /* add right after tmp */ + list_add(&roc->list, &tmp->list); + } else { + list_add_tail(&roc->list, + &tmp->dependents); + } + queued = true; + } + } else if (del_timer_sync(&tmp->work.timer)) { + unsigned long new_end; + + /* + * In the software ROC case, cancel the timer, if + * that fails then the finish work is already + * queued/pending and thus we queue the new ROC + * normally, if that succeeds then we can extend + * the timer duration and TX the frame (if any.) + */ + + list_add_tail(&roc->list, &tmp->dependents); + queued = true; + + new_end = jiffies + msecs_to_jiffies(roc->duration); + + /* ok, it was started & we canceled timer */ + if (time_after(new_end, tmp->work.timer.expires)) + mod_timer(&tmp->work.timer, new_end); + else + add_timer(&tmp->work.timer); + + ieee80211_handle_roc_started(roc); + } + break; + } + + out_queue: + if (!queued) + list_add_tail(&roc->list, &local->roc_list); + + /* + * cookie is either the roc (for normal roc) + * or the SKB (for mgmt TX) + */ + if (txskb) + *cookie = (unsigned long)txskb; + else + *cookie = (unsigned long)roc; + + return 0; } static int ieee80211_remain_on_channel(struct wiphy *wiphy, - struct net_device *dev, + struct wireless_dev *wdev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type, unsigned int duration, u64 *cookie) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; + int ret; - if (local->ops->remain_on_channel) { - int ret; - - mutex_lock(&local->mtx); - ret = ieee80211_remain_on_channel_hw(local, dev, - chan, channel_type, - duration, cookie); - local->hw_roc_for_tx = false; - mutex_unlock(&local->mtx); - - return ret; - } + mutex_lock(&local->mtx); + ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + duration, cookie, NULL); + mutex_unlock(&local->mtx); - return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, - duration, cookie); + return ret; } -static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local, - u64 cookie) +static int ieee80211_cancel_roc(struct ieee80211_local *local, + u64 cookie, bool mgmt_tx) { + struct ieee80211_roc_work *roc, *tmp, *found = NULL; int ret; - lockdep_assert_held(&local->mtx); + mutex_lock(&local->mtx); + list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { + struct ieee80211_roc_work *dep, *tmp2; - if (local->hw_roc_cookie != cookie) - return -ENOENT; + list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { + if (!mgmt_tx && (unsigned long)dep != cookie) + continue; + else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) + continue; + /* found dependent item -- just remove it */ + list_del(&dep->list); + mutex_unlock(&local->mtx); - ret = drv_cancel_remain_on_channel(local); - if (ret) - return ret; + ieee80211_roc_notify_destroy(dep); + return 0; + } - local->hw_roc_cookie = 0; - local->hw_roc_channel = NULL; + if (!mgmt_tx && (unsigned long)roc != cookie) + continue; + else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) + continue; + + found = roc; + break; + } - ieee80211_recalc_idle(local); + if (!found) { + mutex_unlock(&local->mtx); + return -ENOENT; + } - return 0; -} + /* + * We found the item to cancel, so do that. Note that it + * may have dependents, which we also cancel (and send + * the expired signal for.) Not doing so would be quite + * tricky here, but we may need to fix it later. + */ -static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, - struct net_device *dev, - u64 cookie) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; + if (local->ops->remain_on_channel) { + if (found->started) { + ret = drv_cancel_remain_on_channel(local); + if (WARN_ON_ONCE(ret)) { + mutex_unlock(&local->mtx); + return ret; + } + } - if (local->ops->cancel_remain_on_channel) { - int ret; + list_del(&found->list); - mutex_lock(&local->mtx); - ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); + if (found->started) + ieee80211_start_next_roc(local); mutex_unlock(&local->mtx); - return ret; + ieee80211_roc_notify_destroy(found); + } else { + /* work may be pending so use it all the time */ + found->abort = true; + ieee80211_queue_delayed_work(&local->hw, &found->work, 0); + + mutex_unlock(&local->mtx); + + /* work will clean up etc */ + flush_delayed_work(&found->work); } - return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); + return 0; } -static enum work_done_result -ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) +static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + u64 cookie) { - /* - * Use the data embedded in the work struct for reporting - * here so if the driver mangled the SKB before dropping - * it (which is the only way we really should get here) - * then we don't report mangled data. - * - * If there was no wait time, then by the time we get here - * the driver will likely not have reported the status yet, - * so in that case userspace will have to deal with it. - */ - - if (wk->offchan_tx.wait && !wk->offchan_tx.status) - cfg80211_mgmt_tx_status(wk->sdata->dev, - (unsigned long) wk->offchan_tx.frame, - wk->data, wk->data_len, false, GFP_KERNEL); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + struct ieee80211_local *local = sdata->local; - return WORK_DONE_DESTROY; + return ieee80211_cancel_roc(local, cookie, false); } -static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, +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) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct sta_info *sta; - struct ieee80211_work *wk; const struct ieee80211_mgmt *mgmt = (void *)buf; + bool need_offchan = false; u32 flags; - bool is_offchan = false; + int ret; if (dont_wait_for_ack) flags = IEEE80211_TX_CTL_NO_ACK; @@ -2255,33 +2425,28 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | IEEE80211_TX_CTL_REQ_TX_STATUS; - /* Check that we are on the requested channel for transmission */ - if (chan != local->tmp_channel && - chan != local->oper_channel) - is_offchan = true; - if (channel_type_valid && - (channel_type != local->tmp_channel_type && - channel_type != local->_oper_channel_type)) - is_offchan = true; - - if (chan == local->hw_roc_channel) { - /* TODO: check channel type? */ - is_offchan = false; - flags |= IEEE80211_TX_CTL_TX_OFFCHAN; - } - if (no_cck) flags |= IEEE80211_TX_CTL_NO_CCK_RATE; - if (is_offchan && !offchan) - return -EBUSY; - switch (sdata->vif.type) { case NL80211_IFTYPE_ADHOC: + if (!sdata->vif.bss_conf.ibss_joined) + need_offchan = true; + /* fall through */ +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + if (ieee80211_vif_is_mesh(&sdata->vif) && + !sdata->u.mesh.mesh_id_len) + need_offchan = true; + /* fall through */ +#endif case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_P2P_GO: - case NL80211_IFTYPE_MESH_POINT: + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && + !ieee80211_vif_is_mesh(&sdata->vif) && + !rcu_access_pointer(sdata->bss->beacon)) + need_offchan = true; if (!ieee80211_is_action(mgmt->frame_control) || mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) break; @@ -2293,167 +2458,101 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: + if (!sdata->u.mgd.associated) + need_offchan = true; break; default: return -EOPNOTSUPP; } + mutex_lock(&local->mtx); + + /* 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) + need_offchan = true; + } + + if (need_offchan && !offchan) { + ret = -EBUSY; + goto out_unlock; + } + skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); - if (!skb) - return -ENOMEM; + if (!skb) { + ret = -ENOMEM; + goto out_unlock; + } skb_reserve(skb, local->hw.extra_tx_headroom); memcpy(skb_put(skb, len), buf, len); IEEE80211_SKB_CB(skb)->flags = flags; - if (flags & IEEE80211_TX_CTL_TX_OFFCHAN) - IEEE80211_SKB_CB(skb)->hw_queue = - local->hw.offchannel_tx_hw_queue; - skb->dev = sdata->dev; - *cookie = (unsigned long) skb; - - if (is_offchan && local->ops->remain_on_channel) { - unsigned int duration; - int ret; - - mutex_lock(&local->mtx); - /* - * If the duration is zero, then the driver - * wouldn't actually do anything. Set it to - * 100 for now. - * - * TODO: cancel the off-channel operation - * when we get the SKB's TX status and - * the wait time was zero before. - */ - duration = 100; - if (wait) - duration = wait; - ret = ieee80211_remain_on_channel_hw(local, dev, chan, - channel_type, - duration, cookie); - if (ret) { - kfree_skb(skb); - mutex_unlock(&local->mtx); - return ret; - } - - local->hw_roc_for_tx = true; - local->hw_roc_duration = wait; - - /* - * queue up frame for transmission after - * ieee80211_ready_on_channel call - */ + if (!need_offchan) { + *cookie = (unsigned long) skb; + ieee80211_tx_skb(sdata, skb); + ret = 0; + goto out_unlock; + } - /* modify cookie to prevent API mismatches */ - *cookie ^= 2; - IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) IEEE80211_SKB_CB(skb)->hw_queue = local->hw.offchannel_tx_hw_queue; - local->hw_roc_skb = skb; - local->hw_roc_skb_for_status = skb; - mutex_unlock(&local->mtx); - - return 0; - } - - /* - * Can transmit right away if the channel was the - * right one and there's no wait involved... If a - * wait is involved, we might otherwise not be on - * the right channel for long enough! - */ - if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) { - ieee80211_tx_skb(sdata, skb); - return 0; - } - wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL); - if (!wk) { + /* This will handle all kinds of coalescing and immediate TX */ + ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + wait, cookie, skb); + if (ret) kfree_skb(skb); - return -ENOMEM; - } - - wk->type = IEEE80211_WORK_OFFCHANNEL_TX; - wk->chan = chan; - wk->chan_type = channel_type; - wk->sdata = sdata; - wk->done = ieee80211_offchan_tx_done; - wk->offchan_tx.frame = skb; - wk->offchan_tx.wait = wait; - wk->data_len = len; - memcpy(wk->data, buf, len); - - ieee80211_add_work(wk); - return 0; + out_unlock: + mutex_unlock(&local->mtx); + return ret; } static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, - struct net_device *dev, + struct wireless_dev *wdev, u64 cookie) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk; - int ret = -ENOENT; - - mutex_lock(&local->mtx); - - if (local->ops->cancel_remain_on_channel) { - cookie ^= 2; - ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); - - if (ret == 0) { - kfree_skb(local->hw_roc_skb); - local->hw_roc_skb = NULL; - local->hw_roc_skb_for_status = NULL; - } - - mutex_unlock(&local->mtx); - - return ret; - } - - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - - if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) - continue; - - if (cookie != (unsigned long) wk->offchan_tx.frame) - continue; - - wk->timeout = jiffies; - - ieee80211_queue_work(&local->hw, &local->work_work); - ret = 0; - break; - } - mutex_unlock(&local->mtx); + struct ieee80211_local *local = wiphy_priv(wiphy); - return ret; + return ieee80211_cancel_roc(local, cookie, true); } static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, - struct net_device *dev, + struct wireless_dev *wdev, u16 frame_type, bool reg) { struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ)) - return; + switch (frame_type) { + case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH: + if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { + struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; - if (reg) - local->probe_req_reg++; - else - local->probe_req_reg--; + if (reg) + ifibss->auth_frame_registrations++; + else + ifibss->auth_frame_registrations--; + } + break; + case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: + if (reg) + local->probe_req_reg++; + else + local->probe_req_reg--; - ieee80211_queue_work(&local->hw, &local->reconfig_filter); + ieee80211_queue_work(&local->hw, &local->reconfig_filter); + break; + default: + break; + } } static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) @@ -2573,8 +2672,8 @@ 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->vif, skb, false); - ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); + ieee80211_add_srates_ie(sdata, skb, false); + ieee80211_add_ext_srates_ie(sdata, skb, false); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_RESPONSE: @@ -2587,8 +2686,8 @@ 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->vif, skb, false); - ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); + ieee80211_add_srates_ie(sdata, skb, false); + ieee80211_add_ext_srates_ie(sdata, skb, false); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_CONFIRM: @@ -2648,8 +2747,8 @@ 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->vif, skb, false); - ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); + ieee80211_add_srates_ie(sdata, skb, false); + ieee80211_add_ext_srates_ie(sdata, skb, false); ieee80211_tdls_add_ext_capab(skb); break; default: @@ -2679,9 +2778,8 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, !sdata->u.mgd.associated) return -EINVAL; -#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG - printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer); -#endif + tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", + action_code, peer); skb = dev_alloc_skb(local->hw.extra_tx_headroom + max(sizeof(struct ieee80211_mgmt), @@ -2790,9 +2888,7 @@ static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EINVAL; -#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG - printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer); -#endif + tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); switch (oper) { case NL80211_TDLS_ENABLE_LINK: @@ -2889,8 +2985,8 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, } static struct ieee80211_channel * -ieee80211_wiphy_get_channel(struct wiphy *wiphy, - enum nl80211_channel_type *type) +ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_channel_type *type) { struct ieee80211_local *local = wiphy_priv(wiphy); @@ -2936,7 +3032,7 @@ struct cfg80211_ops mac80211_config_ops = { #endif .change_bss = ieee80211_change_bss, .set_txq_params = ieee80211_set_txq_params, - .set_channel = ieee80211_set_channel, + .set_monitor_channel = ieee80211_set_monitor_channel, .suspend = ieee80211_suspend, .resume = ieee80211_resume, .scan = ieee80211_scan, @@ -2971,7 +3067,6 @@ struct cfg80211_ops mac80211_config_ops = { .tdls_oper = ieee80211_tdls_oper, .tdls_mgmt = ieee80211_tdls_mgmt, .probe_client = ieee80211_probe_client, - .get_channel = ieee80211_wiphy_get_channel, .set_noack_map = ieee80211_set_noack_map, #ifdef CONFIG_PM .set_wakeup = ieee80211_set_wakeup, @@ -2979,4 +3074,5 @@ struct cfg80211_ops mac80211_config_ops = { .get_et_sset_count = ieee80211_get_et_sset_count, .get_et_stats = ieee80211_get_et_stats, .get_et_strings = ieee80211_get_et_strings, + .get_channel = ieee80211_cfg_get_channel, }; diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index c76cf72..f0f87e5 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -41,6 +41,10 @@ __ieee80211_get_channel_mode(struct ieee80211_local *local, if (!sdata->u.ap.beacon) continue; break; + case NL80211_IFTYPE_MESH_POINT: + if (!sdata->wdev.mesh_id_len) + continue; + break; default: break; } diff --git a/net/mac80211/debug.h b/net/mac80211/debug.h new file mode 100644 index 0000000..8f383a5 --- /dev/null +++ b/net/mac80211/debug.h @@ -0,0 +1,170 @@ +#ifndef __MAC80211_DEBUG_H +#define __MAC80211_DEBUG_H +#include <net/cfg80211.h> + +#ifdef CONFIG_MAC80211_IBSS_DEBUG +#define MAC80211_IBSS_DEBUG 1 +#else +#define MAC80211_IBSS_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_PS_DEBUG +#define MAC80211_PS_DEBUG 1 +#else +#define MAC80211_PS_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_HT_DEBUG +#define MAC80211_HT_DEBUG 1 +#else +#define MAC80211_HT_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MPL_DEBUG +#define MAC80211_MPL_DEBUG 1 +#else +#define MAC80211_MPL_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MPATH_DEBUG +#define MAC80211_MPATH_DEBUG 1 +#else +#define MAC80211_MPATH_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MHWMP_DEBUG +#define MAC80211_MHWMP_DEBUG 1 +#else +#define MAC80211_MHWMP_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MESH_SYNC_DEBUG +#define MAC80211_MESH_SYNC_DEBUG 1 +#else +#define MAC80211_MESH_SYNC_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_TDLS_DEBUG +#define MAC80211_TDLS_DEBUG 1 +#else +#define MAC80211_TDLS_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_STA_DEBUG +#define MAC80211_STA_DEBUG 1 +#else +#define MAC80211_STA_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MLME_DEBUG +#define MAC80211_MLME_DEBUG 1 +#else +#define MAC80211_MLME_DEBUG 0 +#endif + +#ifdef CONFIG_MAC80211_MESSAGE_TRACING +void __sdata_info(const char *fmt, ...) __printf(1, 2); +void __sdata_dbg(bool print, const char *fmt, ...) __printf(2, 3); +void __sdata_err(const char *fmt, ...) __printf(1, 2); +void __wiphy_dbg(struct wiphy *wiphy, bool print, const char *fmt, ...) + __printf(3, 4); + +#define _sdata_info(sdata, fmt, ...) \ + __sdata_info("%s: " fmt, (sdata)->name, ##__VA_ARGS__) +#define _sdata_dbg(print, sdata, fmt, ...) \ + __sdata_dbg(print, "%s: " fmt, (sdata)->name, ##__VA_ARGS__) +#define _sdata_err(sdata, fmt, ...) \ + __sdata_err("%s: " fmt, (sdata)->name, ##__VA_ARGS__) +#define _wiphy_dbg(print, wiphy, fmt, ...) \ + __wiphy_dbg(wiphy, print, fmt, ##__VA_ARGS__) +#else +#define _sdata_info(sdata, fmt, ...) \ +do { \ + pr_info("%s: " fmt, \ + (sdata)->name, ##__VA_ARGS__); \ +} while (0) + +#define _sdata_dbg(print, sdata, fmt, ...) \ +do { \ + if (print) \ + pr_debug("%s: " fmt, \ + (sdata)->name, ##__VA_ARGS__); \ +} while (0) + +#define _sdata_err(sdata, fmt, ...) \ +do { \ + pr_err("%s: " fmt, \ + (sdata)->name, ##__VA_ARGS__); \ +} while (0) + +#define _wiphy_dbg(print, wiphy, fmt, ...) \ +do { \ + if (print) \ + wiphy_dbg((wiphy), fmt, ##__VA_ARGS__); \ +} while (0) +#endif + +#define sdata_info(sdata, fmt, ...) \ + _sdata_info(sdata, fmt, ##__VA_ARGS__) +#define sdata_err(sdata, fmt, ...) \ + _sdata_err(sdata, fmt, ##__VA_ARGS__) +#define sdata_dbg(sdata, fmt, ...) \ + _sdata_dbg(1, sdata, fmt, ##__VA_ARGS__) + +#define ht_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_HT_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define ht_dbg_ratelimited(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_HT_DEBUG && net_ratelimit(), \ + sdata, fmt, ##__VA_ARGS__) + +#define ibss_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_IBSS_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define ps_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_PS_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define ps_dbg_hw(hw, fmt, ...) \ + _wiphy_dbg(MAC80211_PS_DEBUG, \ + (hw)->wiphy, fmt, ##__VA_ARGS__) + +#define ps_dbg_ratelimited(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_PS_DEBUG && net_ratelimit(), \ + sdata, fmt, ##__VA_ARGS__) + +#define mpl_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MPL_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define mpath_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MPATH_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define mhwmp_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MHWMP_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define msync_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MESH_SYNC_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define tdls_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_TDLS_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define sta_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_STA_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define mlme_dbg(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MLME_DEBUG, \ + sdata, fmt, ##__VA_ARGS__) + +#define mlme_dbg_ratelimited(sdata, fmt, ...) \ + _sdata_dbg(MAC80211_MLME_DEBUG && net_ratelimit(), \ + sdata, fmt, ##__VA_ARGS__) + +#endif /* __MAC80211_DEBUG_H */ diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 778e591..b8dfb44 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -325,8 +325,6 @@ void debugfs_hw_add(struct ieee80211_local *local) local->rx_handlers_drop_defrag); DEBUGFS_STATS_ADD(rx_handlers_drop_short, local->rx_handlers_drop_short); - DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan, - local->rx_handlers_drop_passive_scan); DEBUGFS_STATS_ADD(tx_expand_skb_head, local->tx_expand_skb_head); DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned, diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 7932767..090d08f 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -283,6 +283,11 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&sdata->local->key_mtx); + if (sdata->debugfs.default_unicast_key) { + debugfs_remove(sdata->debugfs.default_unicast_key); + sdata->debugfs.default_unicast_key = NULL; + } + if (sdata->default_unicast_key) { key = key_mtx_dereference(sdata->local, sdata->default_unicast_key); @@ -290,9 +295,11 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) sdata->debugfs.default_unicast_key = debugfs_create_symlink("default_unicast_key", sdata->debugfs.dir, buf); - } else { - debugfs_remove(sdata->debugfs.default_unicast_key); - sdata->debugfs.default_unicast_key = NULL; + } + + if (sdata->debugfs.default_multicast_key) { + debugfs_remove(sdata->debugfs.default_multicast_key); + sdata->debugfs.default_multicast_key = NULL; } if (sdata->default_multicast_key) { @@ -302,9 +309,6 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) sdata->debugfs.default_multicast_key = debugfs_create_symlink("default_multicast_key", sdata->debugfs.dir, buf); - } else { - debugfs_remove(sdata->debugfs.default_multicast_key); - sdata->debugfs.default_multicast_key = NULL; } } diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 7ed433c6..6d5aec9 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -468,48 +468,54 @@ IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC); IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC); IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC); IEEE80211_IF_FILE(dropped_frames_congestion, - u.mesh.mshstats.dropped_frames_congestion, DEC); + u.mesh.mshstats.dropped_frames_congestion, DEC); IEEE80211_IF_FILE(dropped_frames_no_route, - u.mesh.mshstats.dropped_frames_no_route, DEC); + u.mesh.mshstats.dropped_frames_no_route, DEC); IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC); /* Mesh parameters */ IEEE80211_IF_FILE(dot11MeshMaxRetries, - u.mesh.mshcfg.dot11MeshMaxRetries, DEC); + u.mesh.mshcfg.dot11MeshMaxRetries, DEC); IEEE80211_IF_FILE(dot11MeshRetryTimeout, - u.mesh.mshcfg.dot11MeshRetryTimeout, DEC); + u.mesh.mshcfg.dot11MeshRetryTimeout, DEC); IEEE80211_IF_FILE(dot11MeshConfirmTimeout, - u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC); + u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC); IEEE80211_IF_FILE(dot11MeshHoldingTimeout, - u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); + u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC); IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC); IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC); IEEE80211_IF_FILE(dot11MeshMaxPeerLinks, - u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); + u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout, - u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC); + u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC); IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval, - u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC); + u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC); IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval, - u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC); + u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC); IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime, - u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC); + u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC); IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries, - u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC); + u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC); IEEE80211_IF_FILE(path_refresh_time, - u.mesh.mshcfg.path_refresh_time, DEC); + u.mesh.mshcfg.path_refresh_time, DEC); IEEE80211_IF_FILE(min_discovery_timeout, - u.mesh.mshcfg.min_discovery_timeout, DEC); + u.mesh.mshcfg.min_discovery_timeout, DEC); IEEE80211_IF_FILE(dot11MeshHWMPRootMode, - u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); + u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol, - u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC); + u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC); IEEE80211_IF_FILE(dot11MeshHWMPRannInterval, - u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC); + u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC); IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC); IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC); IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC); +IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout, + u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC); +IEEE80211_IF_FILE(dot11MeshHWMProotInterval, + u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC); +IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval, + u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC); #endif #define DEBUGFS_ADD_MODE(name, mode) \ @@ -607,9 +613,13 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata) MESHPARAMS_ADD(min_discovery_timeout); MESHPARAMS_ADD(dot11MeshHWMPRootMode); MESHPARAMS_ADD(dot11MeshHWMPRannInterval); + MESHPARAMS_ADD(dot11MeshForwarding); MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol); MESHPARAMS_ADD(rssi_threshold); MESHPARAMS_ADD(ht_opmode); + MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout); + MESHPARAMS_ADD(dot11MeshHWMProotInterval); + MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval); #undef MESHPARAMS_ADD } #endif @@ -685,6 +695,7 @@ void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata) sprintf(buf, "netdev:%s", sdata->name); if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) - printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs " - "dir to %s\n", buf); + sdata_err(sdata, + "debugfs: failed to rename debugfs dir to %s\n", + buf); } diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 6d33a0c..df92031 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -3,7 +3,7 @@ #include <net/mac80211.h> #include "ieee80211_i.h" -#include "driver-trace.h" +#include "trace.h" static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata) { @@ -27,14 +27,6 @@ static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb) local->ops->tx(&local->hw, skb); } -static inline void drv_tx_frags(struct ieee80211_local *local, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta, - struct sk_buff_head *skbs) -{ - local->ops->tx_frags(&local->hw, vif, sta, skbs); -} - static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata, u32 sset, u8 *data) { @@ -845,4 +837,33 @@ drv_allow_buffered_frames(struct ieee80211_local *local, more_data); trace_drv_return_void(local); } + +static inline int drv_get_rssi(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + s8 *rssi_dbm) +{ + int ret; + + might_sleep(); + + ret = local->ops->get_rssi(&local->hw, &sdata->vif, sta, rssi_dbm); + trace_drv_get_rssi(local, sta, *rssi_dbm, ret); + + return ret; +} + +static inline void drv_mgd_prepare_tx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + might_sleep(); + + check_sdata_in_driver(sdata); + WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION); + + trace_drv_mgd_prepare_tx(local, sdata); + if (local->ops->mgd_prepare_tx) + local->ops->mgd_prepare_tx(&local->hw, &sdata->vif); + trace_drv_return_void(local); +} #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/driver-trace.c b/net/mac80211/driver-trace.c deleted file mode 100644 index 8ed8711..0000000 --- a/net/mac80211/driver-trace.c +++ /dev/null @@ -1,9 +0,0 @@ -/* bug in tracepoint.h, it should include this */ -#include <linux/module.h> - -/* sparse isn't too happy with all macros... */ -#ifndef __CHECKER__ -#include "driver-ops.h" -#define CREATE_TRACE_POINTS -#include "driver-trace.h" -#endif diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 6f8615c..4b4538d 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -305,12 +305,10 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12; initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11; -#ifdef CONFIG_MAC80211_HT_DEBUG - net_dbg_ratelimited("delba from %pM (%s) tid %d reason code %d\n", - mgmt->sa, initiator ? "initiator" : "recipient", - tid, - le16_to_cpu(mgmt->u.action.u.delba.reason_code)); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_dbg_ratelimited(sdata, "delba from %pM (%s) tid %d reason code %d\n", + mgmt->sa, initiator ? "initiator" : "recipient", + tid, + le16_to_cpu(mgmt->u.action.u.delba.reason_code)); if (initiator == WLAN_BACK_INITIATOR) __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_INITIATOR, 0, diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 33d9d0c..5746d62 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -82,8 +82,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, local->oper_channel = chan; channel_type = ifibss->channel_type; - if (channel_type > NL80211_CHAN_HT20 && - !cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, 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 */ @@ -262,11 +261,7 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta, memcpy(addr, sta->sta.addr, ETH_ALEN); -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(sdata->local->hw.wiphy, - "Adding new IBSS station %pM (dev=%s)\n", - addr, sdata->name); -#endif + ibss_dbg(sdata, "Adding new IBSS station %pM\n", addr); sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); @@ -280,12 +275,10 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta, /* If it fails, maybe we raced another insertion? */ if (sta_info_insert_rcu(sta)) return sta_info_get(sdata, addr); - if (auth) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "TX Auth SA=%pM DA=%pM BSSID=%pM" - "(auth_transaction=1)\n", sdata->vif.addr, - sdata->u.ibss.bssid, addr); -#endif + if (auth && !sdata->u.ibss.auth_frame_registrations) { + ibss_dbg(sdata, + "TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n", + sdata->vif.addr, sdata->u.ibss.bssid, addr); ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0, addr, sdata->u.ibss.bssid, NULL, 0, 0); } @@ -308,7 +301,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, * allow new one to be added. */ if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { - net_dbg_ratelimited("%s: No room for a new IBSS STA entry %pM\n", + net_info_ratelimited("%s: No room for a new IBSS STA entry %pM\n", sdata->name, addr); rcu_read_lock(); return NULL; @@ -355,11 +348,9 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) return; -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX Auth SA=%pM DA=%pM BSSID=%pM." - "(auth_transaction=%d)\n", - sdata->name, mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction); -#endif + ibss_dbg(sdata, + "RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n", + mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction); sta_info_destroy_addr(sdata, mgmt->sa); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false); rcu_read_unlock(); @@ -422,15 +413,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, ieee80211_mandatory_rates(local, band); if (sta->sta.supp_rates[band] != prev_rates) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG - "%s: updated supp_rates set " - "for %pM based on beacon" - "/probe_resp (0x%x -> 0x%x)\n", - sdata->name, sta->sta.addr, - prev_rates, - sta->sta.supp_rates[band]); -#endif + ibss_dbg(sdata, + "updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n", + sta->sta.addr, prev_rates, + sta->sta.supp_rates[band]); rates_updated = true; } } else { @@ -545,22 +531,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, rx_timestamp = drv_get_tsf(local, sdata); } -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "RX beacon SA=%pM BSSID=" - "%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n", - mgmt->sa, mgmt->bssid, - (unsigned long long)rx_timestamp, - (unsigned long long)beacon_timestamp, - (unsigned long long)(rx_timestamp - beacon_timestamp), - jiffies); -#endif + ibss_dbg(sdata, + "RX beacon SA=%pM BSSID=%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n", + mgmt->sa, mgmt->bssid, + (unsigned long long)rx_timestamp, + (unsigned long long)beacon_timestamp, + (unsigned long long)(rx_timestamp - beacon_timestamp), + jiffies); if (beacon_timestamp > rx_timestamp) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: beacon TSF higher than " - "local TSF - IBSS merge with BSSID %pM\n", - sdata->name, mgmt->bssid); -#endif + ibss_dbg(sdata, + "beacon TSF higher than local TSF - IBSS merge with BSSID %pM\n", + mgmt->bssid); ieee80211_sta_join_ibss(sdata, bss); supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, @@ -586,7 +568,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, * allow new one to be added. */ if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { - net_dbg_ratelimited("%s: No room for a new IBSS STA entry %pM\n", + net_info_ratelimited("%s: No room for a new IBSS STA entry %pM\n", sdata->name, addr); return; } @@ -662,8 +644,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) if (ifibss->fixed_channel) return; - printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other " - "IBSS networks with same SSID (merge)\n", sdata->name); + sdata_info(sdata, + "No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n"); ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len, NULL); @@ -691,8 +673,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) bssid[0] |= 0x02; } - printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n", - sdata->name, bssid); + sdata_info(sdata, "Creating new IBSS network, BSSID %pM\n", bssid); capability = WLAN_CAPABILITY_IBSS; @@ -723,10 +704,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&ifibss->mtx); active_ibss = ieee80211_sta_active_ibss(sdata); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n", - sdata->name, active_ibss); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_dbg(sdata, "sta_find_ibss (active_ibss=%d)\n", active_ibss); if (active_ibss) return; @@ -749,29 +727,24 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) struct ieee80211_bss *bss; bss = (void *)cbss->priv; -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " sta_find_ibss: selected %pM current " - "%pM\n", cbss->bssid, ifibss->bssid); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - - printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM" - " based on configured SSID\n", - sdata->name, cbss->bssid); + ibss_dbg(sdata, + "sta_find_ibss: selected %pM current %pM\n", + cbss->bssid, ifibss->bssid); + sdata_info(sdata, + "Selected IBSS BSSID %pM based on configured SSID\n", + cbss->bssid); ieee80211_sta_join_ibss(sdata, bss); ieee80211_rx_bss_put(local, bss); return; } -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " did not try to join ibss\n"); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_dbg(sdata, "sta_find_ibss: did not try to join ibss\n"); /* Selected IBSS not found in current scan results - try to scan */ if (time_after(jiffies, ifibss->last_scan_completed + IEEE80211_SCAN_INTERVAL)) { - printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to " - "join\n", sdata->name); + sdata_info(sdata, "Trigger new scan to find an IBSS to join\n"); ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len, @@ -785,9 +758,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) ieee80211_sta_create_ibss(sdata); return; } - printk(KERN_DEBUG "%s: IBSS not allowed on" - " %d MHz\n", sdata->name, - local->hw.conf.channel->center_freq); + sdata_info(sdata, "IBSS not allowed on %d MHz\n", + local->hw.conf.channel->center_freq); /* No IBSS found - decrease scan interval and continue * scanning. */ @@ -822,12 +794,9 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, tx_last_beacon = drv_tx_last_beacon(local); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM" - " (tx_last_beacon=%d)\n", - sdata->name, mgmt->sa, mgmt->da, - mgmt->bssid, tx_last_beacon); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_dbg(sdata, + "RX ProbeReq SA=%pM DA=%pM BSSID=%pM (tx_last_beacon=%d)\n", + mgmt->sa, mgmt->da, mgmt->bssid, tx_last_beacon); if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da)) return; @@ -840,11 +809,8 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, pos = mgmt->u.probe_req.variable; if (pos[0] != WLAN_EID_SSID || pos + 2 + pos[1] > end) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq " - "from %pM\n", - sdata->name, mgmt->sa); -#endif + ibss_dbg(sdata, "Invalid SSID IE in ProbeReq from %pM\n", + mgmt->sa); return; } if (pos[1] != 0 && @@ -861,10 +827,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, resp = (struct ieee80211_mgmt *) skb->data; memcpy(resp->da, mgmt->sa, ETH_ALEN); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n", - sdata->name, resp->da); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_dbg(sdata, "Sending ProbeResp to %pM\n", resp->da); IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; ieee80211_tx_skb(sdata, skb); } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3f3cd50..bb61f77 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -30,6 +30,7 @@ #include <net/mac80211.h> #include "key.h" #include "sta_info.h" +#include "debug.h" struct ieee80211_local; @@ -55,11 +56,14 @@ struct ieee80211_local; #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024)) #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x)) +/* + * Some APs experience problems when working with U-APSD. Decrease the + * probability of that happening by using legacy mode for all ACs but VO. + * The AP that caused us trouble was a Cisco 4410N. It ignores our + * setting, and always treats non-VO ACs as legacy. + */ #define IEEE80211_DEFAULT_UAPSD_QUEUES \ - (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) + IEEE80211_WMM_IE_STA_QOSINFO_AC_VO #define IEEE80211_DEFAULT_MAX_SP_LEN \ IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL @@ -81,6 +85,8 @@ struct ieee80211_bss { size_t ssid_len; u8 ssid[IEEE80211_MAX_SSID_LEN]; + u32 device_ts; + u8 dtim_period; bool wmm_used; @@ -203,7 +209,6 @@ typedef unsigned __bitwise__ ieee80211_rx_result; * enum ieee80211_packet_rx_flags - packet RX flags * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed * (incl. multicast frames) - * @IEEE80211_RX_IN_SCAN: received while scanning * @IEEE80211_RX_FRAGMENTED: fragmented frame * @IEEE80211_RX_AMSDU: a-MSDU packet * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed @@ -213,7 +218,6 @@ typedef unsigned __bitwise__ ieee80211_rx_result; * @rx_flags field of &struct ieee80211_rx_status. */ enum ieee80211_packet_rx_flags { - IEEE80211_RX_IN_SCAN = BIT(0), IEEE80211_RX_RA_MATCH = BIT(1), IEEE80211_RX_FRAGMENTED = BIT(2), IEEE80211_RX_AMSDU = BIT(3), @@ -317,55 +321,30 @@ struct mesh_preq_queue { u8 flags; }; -enum ieee80211_work_type { - IEEE80211_WORK_ABORT, - IEEE80211_WORK_REMAIN_ON_CHANNEL, - IEEE80211_WORK_OFFCHANNEL_TX, -}; - -/** - * enum work_done_result - indicates what to do after work was done - * - * @WORK_DONE_DESTROY: This work item is no longer needed, destroy. - * @WORK_DONE_REQUEUE: This work item was reset to be reused, and - * should be requeued. - */ -enum work_done_result { - WORK_DONE_DESTROY, - WORK_DONE_REQUEUE, -}; +#if HZ/100 == 0 +#define IEEE80211_ROC_MIN_LEFT 1 +#else +#define IEEE80211_ROC_MIN_LEFT (HZ/100) +#endif -struct ieee80211_work { +struct ieee80211_roc_work { struct list_head list; + struct list_head dependents; - struct rcu_head rcu_head; + struct delayed_work work; struct ieee80211_sub_if_data *sdata; - enum work_done_result (*done)(struct ieee80211_work *wk, - struct sk_buff *skb); - struct ieee80211_channel *chan; enum nl80211_channel_type chan_type; - unsigned long timeout; - enum ieee80211_work_type type; + bool started, abort, hw_begun, notified; - bool started; + unsigned long hw_start_time; - union { - struct { - u32 duration; - } remain; - struct { - struct sk_buff *frame; - u32 wait; - bool status; - } offchan_tx; - }; - - size_t data_len; - u8 data[]; + u32 duration, req_duration; + struct sk_buff *frame; + u64 mgmt_tx_cookie; }; /* flags used in struct ieee80211_if_managed.flags */ @@ -399,7 +378,6 @@ struct ieee80211_mgd_auth_data { struct ieee80211_mgd_assoc_data { struct cfg80211_bss *bss; const u8 *supp_rates; - const u8 *ht_operation_ie; unsigned long timeout; int tries; @@ -414,6 +392,8 @@ struct ieee80211_mgd_assoc_data { bool sent_assoc; bool synced; + u8 ap_ht_param; + size_t ie_len; u8 ie[]; }; @@ -532,6 +512,7 @@ struct ieee80211_if_ibss { bool privacy; bool control_port; + unsigned int auth_frame_registrations; u8 bssid[ETH_ALEN] __aligned(2); u8 ssid[IEEE80211_MAX_SSID_LEN]; @@ -701,6 +682,9 @@ struct ieee80211_sub_if_data { /* TID bitmap for NoAck policy */ u16 noack_map; + /* bit field of ACM bits (BIT(802.1D tag)) */ + u8 wmm_acm; + struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; struct ieee80211_key __rcu *default_unicast_key; struct ieee80211_key __rcu *default_multicast_key; @@ -847,13 +831,6 @@ struct ieee80211_local { const struct ieee80211_ops *ops; /* - * work stuff, potentially off-channel (in the future) - */ - struct list_head work_list; - struct timer_list work_timer; - struct work_struct work_work; - - /* * private workqueue to mac80211. mac80211 makes this accessible * via ieee80211_queue_work() */ @@ -912,6 +889,9 @@ struct ieee80211_local { /* device is started */ bool started; + /* device is during a HW reconfig */ + bool in_reconfig; + /* wowlan is enabled -- don't reconfig on resume */ bool wowlan; @@ -985,14 +965,14 @@ struct ieee80211_local { int scan_channel_idx; int scan_ies_len; - bool sched_scanning; struct ieee80211_sched_scan_ies sched_scan_ies; struct work_struct sched_scan_stopped_work; + struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 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; + struct ieee80211_sub_if_data __rcu *scan_sdata; enum nl80211_channel_type _oper_channel_type; struct ieee80211_channel *oper_channel, *csa_channel; @@ -1034,7 +1014,6 @@ struct ieee80211_local { unsigned int rx_handlers_drop_nullfunc; unsigned int rx_handlers_drop_defrag; unsigned int rx_handlers_drop_short; - unsigned int rx_handlers_drop_passive_scan; unsigned int tx_expand_skb_head; unsigned int tx_expand_skb_head_cloned; unsigned int rx_expand_skb_head; @@ -1050,7 +1029,6 @@ struct ieee80211_local { int total_ps_buffered; /* total number of all buffered unicast and * multicast packets for power saving stations */ - unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ bool pspolling; bool offchannel_ps_enabled; @@ -1087,14 +1065,12 @@ struct ieee80211_local { } debugfs; #endif - struct ieee80211_channel *hw_roc_channel; - struct net_device *hw_roc_dev; - struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status; + /* + * Remain-on-channel support + */ + struct list_head roc_list; struct work_struct hw_roc_start, hw_roc_done; - enum nl80211_channel_type hw_roc_channel_type; - unsigned int hw_roc_duration; - u32 hw_roc_cookie; - bool hw_roc_for_tx; + unsigned long hw_roc_start_time; struct idr ack_status_frames; spinlock_t ack_status_lock; @@ -1114,6 +1090,12 @@ IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) return netdev_priv(dev); } +static inline struct ieee80211_sub_if_data * +IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) +{ + return container_of(wdev, struct ieee80211_sub_if_data, wdev); +} + /* this struct represents 802.11n's RA/TID combination */ struct ieee80211_ra_tid { u8 ra[ETH_ALEN]; @@ -1264,8 +1246,7 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req); void ieee80211_scan_cancel(struct ieee80211_local *local); void ieee80211_run_deferred_scan(struct ieee80211_local *local); -ieee80211_rx_result -ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); +void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); struct ieee80211_bss * @@ -1290,19 +1271,23 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, bool offchannel_ps_enable); void ieee80211_offchannel_return(struct ieee80211_local *local, bool offchannel_ps_disable); -void ieee80211_hw_roc_setup(struct ieee80211_local *local); +void ieee80211_roc_setup(struct ieee80211_local *local); +void ieee80211_start_next_roc(struct ieee80211_local *local); +void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc); +void ieee80211_sw_roc_work(struct work_struct *work); +void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); /* interface handling */ int ieee80211_iface_init(void); void ieee80211_iface_exit(void); int ieee80211_if_add(struct ieee80211_local *local, const char *name, - struct net_device **new_dev, enum nl80211_iftype type, + struct wireless_dev **new_wdev, enum nl80211_iftype type, struct vif_params *params); int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, enum nl80211_iftype type); void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); void ieee80211_remove_interfaces(struct ieee80211_local *local); -u32 __ieee80211_recalc_idle(struct ieee80211_local *local); void ieee80211_recalc_idle(struct ieee80211_local *local); void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, const int offset); @@ -1499,18 +1484,12 @@ 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, u16 prot_mode); - -/* internal work items */ -void ieee80211_work_init(struct ieee80211_local *local); -void ieee80211_add_work(struct ieee80211_work *wk); -void free_work(struct ieee80211_work *wk); -void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata); -int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - unsigned int duration, u64 *cookie); -int ieee80211_wk_cancel_remain_on_channel( - struct ieee80211_sub_if_data *sdata, u64 cookie); +u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, + u32 cap); +int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, bool need_basic); +int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, bool need_basic); /* channel management */ enum ieee80211_chan_mode { diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 8664111..bfb57dc 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -43,6 +43,128 @@ */ +static u32 ieee80211_idle_off(struct ieee80211_local *local, + const char *reason) +{ + if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE)) + return 0; + + local->hw.conf.flags &= ~IEEE80211_CONF_IDLE; + return IEEE80211_CONF_CHANGE_IDLE; +} + +static u32 ieee80211_idle_on(struct ieee80211_local *local) +{ + if (local->hw.conf.flags & IEEE80211_CONF_IDLE) + return 0; + + drv_flush(local, false); + + local->hw.conf.flags |= IEEE80211_CONF_IDLE; + return IEEE80211_CONF_CHANGE_IDLE; +} + +static u32 __ieee80211_recalc_idle(struct ieee80211_local *local) +{ + struct ieee80211_sub_if_data *sdata; + int count = 0; + bool working = false, scanning = false; + unsigned int led_trig_start = 0, led_trig_stop = 0; + struct ieee80211_roc_work *roc; + +#ifdef CONFIG_PROVE_LOCKING + WARN_ON(debug_locks && !lockdep_rtnl_is_held() && + !lockdep_is_held(&local->iflist_mtx)); +#endif + lockdep_assert_held(&local->mtx); + + list_for_each_entry(sdata, &local->interfaces, list) { + if (!ieee80211_sdata_running(sdata)) { + sdata->vif.bss_conf.idle = true; + continue; + } + + sdata->old_idle = sdata->vif.bss_conf.idle; + + /* do not count disabled managed interfaces */ + if (sdata->vif.type == NL80211_IFTYPE_STATION && + !sdata->u.mgd.associated && + !sdata->u.mgd.auth_data && + !sdata->u.mgd.assoc_data) { + sdata->vif.bss_conf.idle = true; + continue; + } + /* do not count unused IBSS interfaces */ + if (sdata->vif.type == NL80211_IFTYPE_ADHOC && + !sdata->u.ibss.ssid_len) { + sdata->vif.bss_conf.idle = true; + continue; + } + /* count everything else */ + sdata->vif.bss_conf.idle = false; + count++; + } + + if (!local->ops->remain_on_channel) { + list_for_each_entry(roc, &local->roc_list, list) { + working = true; + roc->sdata->vif.bss_conf.idle = false; + } + } + + sdata = rcu_dereference_protected(local->scan_sdata, + lockdep_is_held(&local->mtx)); + if (sdata && !(local->hw.flags & IEEE80211_HW_SCAN_WHILE_IDLE)) { + scanning = true; + sdata->vif.bss_conf.idle = false; + } + + list_for_each_entry(sdata, &local->interfaces, list) { + if (sdata->vif.type == NL80211_IFTYPE_MONITOR || + sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + continue; + if (sdata->old_idle == sdata->vif.bss_conf.idle) + continue; + if (!ieee80211_sdata_running(sdata)) + continue; + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE); + } + + if (working || scanning) + led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_WORK; + else + led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_WORK; + + if (count) + led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; + else + led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; + + ieee80211_mod_tpt_led_trig(local, led_trig_start, led_trig_stop); + + if (working) + return ieee80211_idle_off(local, "working"); + if (scanning) + return ieee80211_idle_off(local, "scanning"); + if (!count) + return ieee80211_idle_on(local); + else + return ieee80211_idle_off(local, "in use"); + + return 0; +} + +void ieee80211_recalc_idle(struct ieee80211_local *local) +{ + u32 chg; + + mutex_lock(&local->iflist_mtx); + chg = __ieee80211_recalc_idle(local); + mutex_unlock(&local->iflist_mtx); + if (chg) + ieee80211_hw_config(local, chg); +} + static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) { int meshhdrlen; @@ -57,9 +179,6 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ dev->mtu = new_mtu; return 0; } @@ -100,15 +219,12 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_sub_if_data *nsdata; - struct net_device *dev = sdata->dev; ASSERT_RTNL(); /* we hold the RTNL here so can safely walk the list */ list_for_each_entry(nsdata, &local->interfaces, list) { - struct net_device *ndev = nsdata->dev; - - if (ndev != dev && ieee80211_sdata_running(nsdata)) { + if (nsdata != sdata && ieee80211_sdata_running(nsdata)) { /* * Allow only a single IBSS interface to be up at any * time. This is restricted because beacon distribution @@ -127,7 +243,8 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, * The remaining checks are only performed for interfaces * with the same MAC address. */ - if (!ether_addr_equal(dev->dev_addr, ndev->dev_addr)) + if (!ether_addr_equal(sdata->vif.addr, + nsdata->vif.addr)) continue; /* @@ -217,17 +334,21 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata) static int ieee80211_add_virtual_monitor(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; - int ret; + int ret = 0; if (!(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF)) return 0; + mutex_lock(&local->iflist_mtx); + if (local->monitor_sdata) - return 0; + goto out_unlock; sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size, GFP_KERNEL); - if (!sdata) - return -ENOMEM; + if (!sdata) { + ret = -ENOMEM; + goto out_unlock; + } /* set up data */ sdata->local = local; @@ -241,18 +362,19 @@ static int ieee80211_add_virtual_monitor(struct ieee80211_local *local) if (WARN_ON(ret)) { /* ok .. stupid driver, it asked for this! */ kfree(sdata); - return ret; + goto out_unlock; } ret = ieee80211_check_queues(sdata); if (ret) { kfree(sdata); - return ret; + goto out_unlock; } rcu_assign_pointer(local->monitor_sdata, sdata); - - return 0; + out_unlock: + mutex_unlock(&local->iflist_mtx); + return ret; } static void ieee80211_del_virtual_monitor(struct ieee80211_local *local) @@ -262,10 +384,12 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local) if (!(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF)) return; - sdata = rtnl_dereference(local->monitor_sdata); + mutex_lock(&local->iflist_mtx); + sdata = rcu_dereference_protected(local->monitor_sdata, + lockdep_is_held(&local->iflist_mtx)); if (!sdata) - return; + goto out_unlock; rcu_assign_pointer(local->monitor_sdata, NULL); synchronize_net(); @@ -273,6 +397,8 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local) drv_remove_interface(local, sdata); kfree(sdata); + out_unlock: + mutex_unlock(&local->iflist_mtx); } /* @@ -520,7 +646,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, clear_bit(SDATA_STATE_RUNNING, &sdata->state); - if (local->scan_sdata == sdata) + if (rcu_access_pointer(local->scan_sdata) == sdata) ieee80211_scan_cancel(local); /* @@ -528,10 +654,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, */ netif_tx_stop_all_queues(sdata->dev); - /* - * Purge work for this interface. - */ - ieee80211_work_purge(sdata); + ieee80211_roc_purge(sdata); /* * Remove all stations associated with this interface. @@ -637,18 +760,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, ieee80211_configure_filter(local); break; default: - mutex_lock(&local->mtx); - if (local->hw_roc_dev == sdata->dev && - local->hw_roc_channel) { - /* ignore return value since this is racy */ - drv_cancel_remain_on_channel(local); - ieee80211_queue_work(&local->hw, &local->hw_roc_done); - } - mutex_unlock(&local->mtx); - - flush_work(&local->hw_roc_start); - flush_work(&local->hw_roc_done); - flush_work(&sdata->work); /* * When we get here, the interface is marked down. @@ -823,7 +934,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev, hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len)); - return ieee80211_select_queue_80211(local, skb, hdr); + return ieee80211_select_queue_80211(sdata, skb, hdr); } static const struct net_device_ops ieee80211_monitorif_ops = { @@ -1238,7 +1349,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, if (__ffs64(mask) + hweight64(mask) != fls64(mask)) { /* not a contiguous mask ... not handled now! */ - printk(KERN_DEBUG "not contiguous\n"); + pr_info("not contiguous\n"); break; } @@ -1284,7 +1395,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, } int ieee80211_if_add(struct ieee80211_local *local, const char *name, - struct net_device **new_dev, enum nl80211_iftype type, + struct wireless_dev **new_wdev, enum nl80211_iftype type, struct vif_params *params) { struct net_device *ndev; @@ -1364,6 +1475,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, sdata->u.mgd.use_4addr = params->use_4addr; } + ndev->features |= local->hw.netdev_features; + ret = register_netdevice(ndev); if (ret) goto fail; @@ -1372,8 +1485,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, list_add_tail_rcu(&sdata->list, &local->interfaces); mutex_unlock(&local->iflist_mtx); - if (new_dev) - *new_dev = ndev; + if (new_wdev) + *new_wdev = &sdata->wdev; return 0; @@ -1421,138 +1534,6 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local) list_del(&unreg_list); } -static u32 ieee80211_idle_off(struct ieee80211_local *local, - const char *reason) -{ - if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE)) - return 0; - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "device no longer idle - %s\n", reason); -#endif - - local->hw.conf.flags &= ~IEEE80211_CONF_IDLE; - return IEEE80211_CONF_CHANGE_IDLE; -} - -static u32 ieee80211_idle_on(struct ieee80211_local *local) -{ - if (local->hw.conf.flags & IEEE80211_CONF_IDLE) - return 0; - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "device now idle\n"); -#endif - - drv_flush(local, false); - - local->hw.conf.flags |= IEEE80211_CONF_IDLE; - return IEEE80211_CONF_CHANGE_IDLE; -} - -u32 __ieee80211_recalc_idle(struct ieee80211_local *local) -{ - struct ieee80211_sub_if_data *sdata; - int count = 0; - bool working = false, scanning = false, hw_roc = false; - struct ieee80211_work *wk; - unsigned int led_trig_start = 0, led_trig_stop = 0; - -#ifdef CONFIG_PROVE_LOCKING - WARN_ON(debug_locks && !lockdep_rtnl_is_held() && - !lockdep_is_held(&local->iflist_mtx)); -#endif - lockdep_assert_held(&local->mtx); - - list_for_each_entry(sdata, &local->interfaces, list) { - if (!ieee80211_sdata_running(sdata)) { - sdata->vif.bss_conf.idle = true; - continue; - } - - sdata->old_idle = sdata->vif.bss_conf.idle; - - /* do not count disabled managed interfaces */ - if (sdata->vif.type == NL80211_IFTYPE_STATION && - !sdata->u.mgd.associated && - !sdata->u.mgd.auth_data && - !sdata->u.mgd.assoc_data) { - sdata->vif.bss_conf.idle = true; - continue; - } - /* do not count unused IBSS interfaces */ - if (sdata->vif.type == NL80211_IFTYPE_ADHOC && - !sdata->u.ibss.ssid_len) { - sdata->vif.bss_conf.idle = true; - continue; - } - /* count everything else */ - sdata->vif.bss_conf.idle = false; - count++; - } - - list_for_each_entry(wk, &local->work_list, list) { - working = true; - wk->sdata->vif.bss_conf.idle = false; - } - - if (local->scan_sdata && - !(local->hw.flags & IEEE80211_HW_SCAN_WHILE_IDLE)) { - scanning = true; - local->scan_sdata->vif.bss_conf.idle = false; - } - - if (local->hw_roc_channel) - hw_roc = true; - - list_for_each_entry(sdata, &local->interfaces, list) { - if (sdata->vif.type == NL80211_IFTYPE_MONITOR || - sdata->vif.type == NL80211_IFTYPE_AP_VLAN) - continue; - if (sdata->old_idle == sdata->vif.bss_conf.idle) - continue; - if (!ieee80211_sdata_running(sdata)) - continue; - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE); - } - - if (working || scanning || hw_roc) - led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_WORK; - else - led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_WORK; - - if (count) - led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; - else - led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; - - ieee80211_mod_tpt_led_trig(local, led_trig_start, led_trig_stop); - - if (hw_roc) - return ieee80211_idle_off(local, "hw remain-on-channel"); - if (working) - return ieee80211_idle_off(local, "working"); - if (scanning) - return ieee80211_idle_off(local, "scanning"); - if (!count) - return ieee80211_idle_on(local); - else - return ieee80211_idle_off(local, "in use"); - - return 0; -} - -void ieee80211_recalc_idle(struct ieee80211_local *local) -{ - u32 chg; - - mutex_lock(&local->iflist_mtx); - chg = __ieee80211_recalc_idle(local); - mutex_unlock(&local->iflist_mtx); - if (chg) - ieee80211_hw_config(local, chg); -} - static int netdev_notify(struct notifier_block *nb, unsigned long state, void *ndev) diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 5bb600d..7ae678b 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -139,7 +139,7 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) } if (ret != -ENOSPC && ret != -EOPNOTSUPP) - wiphy_err(key->local->hw.wiphy, + sdata_err(sdata, "failed to set key (%d, %pM) to hardware (%d)\n", key->conf.keyidx, sta ? sta->sta.addr : bcast_addr, ret); @@ -186,7 +186,7 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) sta ? &sta->sta : NULL, &key->conf); if (ret) - wiphy_err(key->local->hw.wiphy, + sdata_err(sdata, "failed to remove key (%d, %pM) from hardware (%d)\n", key->conf.keyidx, sta ? sta->sta.addr : bcast_addr, ret); @@ -194,26 +194,6 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; } -void ieee80211_key_removed(struct ieee80211_key_conf *key_conf) -{ - struct ieee80211_key *key; - - key = container_of(key_conf, struct ieee80211_key, conf); - - might_sleep(); - assert_key_lock(key->local); - - key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - - /* - * Flush TX path to avoid attempts to use this key - * after this function returns. Until then, drivers - * must be prepared to handle the key. - */ - synchronize_rcu(); -} -EXPORT_SYMBOL_GPL(ieee80211_key_removed); - static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx, bool uni, bool multi) { diff --git a/net/mac80211/main.c b/net/mac80211/main.c index f5548e9..c26e231 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -322,7 +322,8 @@ static void ieee80211_restart_work(struct work_struct *work) mutex_lock(&local->mtx); WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || - local->sched_scanning, + rcu_dereference_protected(local->sched_scan_sdata, + lockdep_is_held(&local->mtx)), "%s called with hardware scan in progress\n", __func__); mutex_unlock(&local->mtx); @@ -345,6 +346,13 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw) ieee80211_stop_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_SUSPEND); + /* + * Stop all Rx during the reconfig. We don't want state changes + * or driver callbacks while this is in progress. + */ + local->in_reconfig = true; + barrier(); + schedule_work(&local->restart_work); } EXPORT_SYMBOL(ieee80211_restart_hw); @@ -455,7 +463,9 @@ static const struct ieee80211_txrx_stypes ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { [NL80211_IFTYPE_ADHOC] = { .tx = 0xffff, - .rx = BIT(IEEE80211_STYPE_ACTION >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4) | + BIT(IEEE80211_STYPE_DEAUTH >> 4), }, [NL80211_IFTYPE_STATION] = { .tx = 0xffff, @@ -578,7 +588,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); - BUG_ON(!ops->tx && !ops->tx_frags); + BUG_ON(!ops->tx); BUG_ON(!ops->start); BUG_ON(!ops->stop); BUG_ON(!ops->config); @@ -625,8 +635,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); - ieee80211_work_init(local); - INIT_WORK(&local->restart_work, ieee80211_restart_work); INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); @@ -669,7 +677,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, ieee80211_led_names(local); - ieee80211_hw_roc_setup(local); + ieee80211_roc_setup(local); return &local->hw; } @@ -681,7 +689,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) int result, i; enum ieee80211_band band; int channels, max_bitrates; - bool supp_ht; + bool supp_ht, supp_vht; + netdev_features_t feature_whitelist; static const u32 cipher_suites[] = { /* keep WEP first, it may be removed below */ WLAN_CIPHER_SUITE_WEP40, @@ -698,16 +707,21 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) local->hw.offchannel_tx_hw_queue >= local->hw.queues)) return -EINVAL; - if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) #ifdef CONFIG_PM - && (!local->ops->suspend || !local->ops->resume) -#endif - ) + if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) && + (!local->ops->suspend || !local->ops->resume)) return -EINVAL; +#endif if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) 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; + if (WARN_ON(hw->netdev_features & ~feature_whitelist)) + return -EINVAL; + if (hw->max_report_rates == 0) hw->max_report_rates = hw->max_rates; @@ -719,6 +733,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) channels = 0; max_bitrates = 0; supp_ht = false; + supp_vht = false; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { struct ieee80211_supported_band *sband; @@ -736,6 +751,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) 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; } local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + @@ -811,6 +827,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (supp_ht) local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); + if (supp_vht) + local->scan_ies_len += + 2 + sizeof(struct ieee80211_vht_capabilities); + if (!local->ops->hw_scan) { /* For hw_scan, driver needs to set these up. */ local->hw.wiphy->max_scan_ssids = 4; @@ -1009,12 +1029,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) rtnl_unlock(); - /* - * Now all work items will be gone, but the - * timer might still be armed, so delete it - */ - del_timer_sync(&local->work_timer); - cancel_work_sync(&local->restart_work); cancel_work_sync(&local->reconfig_filter); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 2913113..6fac18c 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -133,7 +133,7 @@ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) } /** - * mesh_accept_plinks_update: update accepting_plink in local mesh beacons + * mesh_accept_plinks_update - update accepting_plink in local mesh beacons * * @sdata: mesh interface in which mesh beacons are going to be updated */ @@ -443,7 +443,7 @@ static void ieee80211_mesh_path_root_timer(unsigned long data) void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) { - if (ifmsh->mshcfg.dot11MeshHWMPRootMode) + if (ifmsh->mshcfg.dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT) set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); else { clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); @@ -523,11 +523,6 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata, { bool free_plinks; -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: running mesh housekeeping\n", - sdata->name); -#endif - ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); mesh_path_expire(sdata); @@ -542,11 +537,17 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata, static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + u32 interval; mesh_path_tx_root_frame(sdata); + + if (ifmsh->mshcfg.dot11MeshHWMPRootMode == IEEE80211_PROACTIVE_RANN) + interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval; + else + interval = ifmsh->mshcfg.dot11MeshHWMProotInterval; + mod_timer(&ifmsh->mesh_path_root_timer, - round_jiffies(TU_TO_EXP_TIME( - ifmsh->mshcfg.dot11MeshHWMPRannInterval))); + round_jiffies(TU_TO_EXP_TIME(interval))); } #ifdef CONFIG_PM diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index e364275..faaa39b 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -104,6 +104,7 @@ enum mesh_deferred_task_flags { * an mpath to a hash bucket on a path table. * @rann_snd_addr: the RANN sender address * @rann_metric: the aggregated path metric towards the root node + * @last_preq_to_root: Timestamp of last PREQ sent to root * @is_root: the destination station of this path is a root node * @is_gate: the destination station of this path is a mesh gate * @@ -131,6 +132,7 @@ struct mesh_path { spinlock_t state_lock; u8 rann_snd_addr[ETH_ALEN]; u32 rann_metric; + unsigned long last_preq_to_root; bool is_root; bool is_gate; }; @@ -245,7 +247,7 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata); int mesh_rmc_init(struct ieee80211_sub_if_data *sdata); void ieee80211s_init(void); void ieee80211s_update_metric(struct ieee80211_local *local, - struct sta_info *stainfo, struct sk_buff *skb); + struct sta_info *sta, struct sk_buff *skb); void ieee80211s_stop(void); void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata); void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 9b59658..494bc39 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -13,13 +13,6 @@ #include "wme.h" #include "mesh.h" -#ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG -#define mhwmp_dbg(fmt, args...) \ - printk(KERN_DEBUG "Mesh HWMP (%s): " fmt "\n", sdata->name, ##args) -#else -#define mhwmp_dbg(fmt, args...) do { (void)(0); } while (0) -#endif - #define TEST_FRAME_LEN 8192 #define MAX_METRIC 0xffffffff #define ARITH_SHIFT 8 @@ -98,6 +91,8 @@ static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae) #define max_preq_retries(s) (s->u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries) #define disc_timeout_jiff(s) \ msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout) +#define root_path_confirmation_jiffies(s) \ + msecs_to_jiffies(sdata->u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval) enum mpath_frame_type { MPATH_PREQ = 0, @@ -142,19 +137,19 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, switch (action) { case MPATH_PREQ: - mhwmp_dbg("sending PREQ to %pM", target); + mhwmp_dbg(sdata, "sending PREQ to %pM\n", target); ie_len = 37; pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_PREQ; break; case MPATH_PREP: - mhwmp_dbg("sending PREP to %pM", target); + mhwmp_dbg(sdata, "sending PREP to %pM\n", target); ie_len = 31; pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_PREP; break; case MPATH_RANN: - mhwmp_dbg("sending RANN from %pM", orig_addr); + mhwmp_dbg(sdata, "sending RANN from %pM\n", orig_addr); ie_len = sizeof(struct ieee80211_rann_ie); pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_RANN; @@ -303,7 +298,7 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, } void ieee80211s_update_metric(struct ieee80211_local *local, - struct sta_info *stainfo, struct sk_buff *skb) + struct sta_info *sta, struct sk_buff *skb) { struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; @@ -315,15 +310,14 @@ void ieee80211s_update_metric(struct ieee80211_local *local, failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK); /* moving average, scaled to 100 */ - stainfo->fail_avg = ((80 * stainfo->fail_avg + 5) / 100 + 20 * failed); - if (stainfo->fail_avg > 95) - mesh_plink_broken(stainfo); + sta->fail_avg = ((80 * sta->fail_avg + 5) / 100 + 20 * failed); + if (sta->fail_avg > 95) + mesh_plink_broken(sta); } static u32 airtime_link_metric_get(struct ieee80211_local *local, struct sta_info *sta) { - struct ieee80211_supported_band *sband; struct rate_info rinfo; /* This should be adjusted for each device */ int device_constant = 1 << ARITH_SHIFT; @@ -333,8 +327,6 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, u32 tx_time, estimated_retx; u64 result; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - if (sta->fail_avg >= 100) return MAX_METRIC; @@ -519,10 +511,11 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, struct mesh_path *mpath = NULL; u8 *target_addr, *orig_addr; const u8 *da; - u8 target_flags, ttl; - u32 orig_sn, target_sn, lifetime; + u8 target_flags, ttl, flags; + u32 orig_sn, target_sn, lifetime, orig_metric; bool reply = false; bool forward = true; + bool root_is_gate; /* Update target SN, if present */ target_addr = PREQ_IE_TARGET_ADDR(preq_elem); @@ -530,11 +523,15 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, target_sn = PREQ_IE_TARGET_SN(preq_elem); orig_sn = PREQ_IE_ORIG_SN(preq_elem); target_flags = PREQ_IE_TARGET_F(preq_elem); + orig_metric = metric; + /* Proactive PREQ gate announcements */ + flags = PREQ_IE_FLAGS(preq_elem); + root_is_gate = !!(flags & RANN_FLAG_IS_GATE); - mhwmp_dbg("received PREQ from %pM", orig_addr); + mhwmp_dbg(sdata, "received PREQ from %pM\n", orig_addr); if (ether_addr_equal(target_addr, sdata->vif.addr)) { - mhwmp_dbg("PREQ is for us"); + mhwmp_dbg(sdata, "PREQ is for us\n"); forward = false; reply = true; metric = 0; @@ -544,6 +541,22 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, target_sn = ++ifmsh->sn; ifmsh->last_sn_update = jiffies; } + } else if (is_broadcast_ether_addr(target_addr) && + (target_flags & IEEE80211_PREQ_TO_FLAG)) { + rcu_read_lock(); + mpath = mesh_path_lookup(orig_addr, sdata); + if (mpath) { + if (flags & IEEE80211_PREQ_PROACTIVE_PREP_FLAG) { + reply = true; + target_addr = sdata->vif.addr; + target_sn = ++ifmsh->sn; + metric = 0; + ifmsh->last_sn_update = jiffies; + } + if (root_is_gate) + mesh_path_add_gate(mpath); + } + rcu_read_unlock(); } else { rcu_read_lock(); mpath = mesh_path_lookup(target_addr, sdata); @@ -570,19 +583,20 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, lifetime = PREQ_IE_LIFETIME(preq_elem); ttl = ifmsh->mshcfg.element_ttl; if (ttl != 0) { - mhwmp_dbg("replying to the PREQ"); + mhwmp_dbg(sdata, "replying to the PREQ\n"); mesh_path_sel_frame_tx(MPATH_PREP, 0, orig_addr, cpu_to_le32(orig_sn), 0, target_addr, cpu_to_le32(target_sn), mgmt->sa, 0, ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), 0, sdata); - } else + } else { ifmsh->mshstats.dropped_frames_ttl++; + } } if (forward && ifmsh->mshcfg.dot11MeshForwarding) { u32 preq_id; - u8 hopcount, flags; + u8 hopcount; ttl = PREQ_IE_TTL(preq_elem); lifetime = PREQ_IE_LIFETIME(preq_elem); @@ -590,13 +604,19 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, ifmsh->mshstats.dropped_frames_ttl++; return; } - mhwmp_dbg("forwarding the PREQ from %pM", orig_addr); + mhwmp_dbg(sdata, "forwarding the PREQ from %pM\n", orig_addr); --ttl; - flags = PREQ_IE_FLAGS(preq_elem); preq_id = PREQ_IE_PREQ_ID(preq_elem); hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1; da = (mpath && mpath->is_root) ? mpath->rann_snd_addr : broadcast_addr; + + if (flags & IEEE80211_PREQ_PROACTIVE_PREP_FLAG) { + target_addr = PREQ_IE_TARGET_ADDR(preq_elem); + target_sn = PREQ_IE_TARGET_SN(preq_elem); + metric = orig_metric; + } + mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr, cpu_to_le32(orig_sn), target_flags, target_addr, cpu_to_le32(target_sn), da, @@ -631,7 +651,8 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, u8 next_hop[ETH_ALEN]; u32 target_sn, orig_sn, lifetime; - mhwmp_dbg("received PREP from %pM", PREP_IE_ORIG_ADDR(prep_elem)); + mhwmp_dbg(sdata, "received PREP from %pM\n", + PREP_IE_ORIG_ADDR(prep_elem)); orig_addr = PREP_IE_ORIG_ADDR(prep_elem); if (ether_addr_equal(orig_addr, sdata->vif.addr)) @@ -744,11 +765,6 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, bool root_is_gate; ttl = rann->rann_ttl; - if (ttl <= 1) { - ifmsh->mshstats.dropped_frames_ttl++; - return; - } - ttl--; flags = rann->rann_flags; root_is_gate = !!(flags & RANN_FLAG_IS_GATE); orig_addr = rann->rann_addr; @@ -762,8 +778,9 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, if (ether_addr_equal(orig_addr, sdata->vif.addr)) return; - mhwmp_dbg("received RANN from %pM via neighbour %pM (is_gate=%d)", - orig_addr, mgmt->sa, root_is_gate); + mhwmp_dbg(sdata, + "received RANN from %pM via neighbour %pM (is_gate=%d)\n", + orig_addr, mgmt->sa, root_is_gate); rcu_read_lock(); sta = sta_info_get(sdata, mgmt->sa); @@ -785,34 +802,50 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, } } + if (!(SN_LT(mpath->sn, orig_sn)) && + !(mpath->sn == orig_sn && metric < mpath->rann_metric)) { + rcu_read_unlock(); + return; + } + if ((!(mpath->flags & (MESH_PATH_ACTIVE | MESH_PATH_RESOLVING)) || - time_after(jiffies, mpath->exp_time - 1*HZ)) && - !(mpath->flags & MESH_PATH_FIXED)) { - mhwmp_dbg("%s time to refresh root mpath %pM", sdata->name, - orig_addr); + (time_after(jiffies, mpath->last_preq_to_root + + root_path_confirmation_jiffies(sdata)) || + time_before(jiffies, mpath->last_preq_to_root))) && + !(mpath->flags & MESH_PATH_FIXED) && (ttl != 0)) { + mhwmp_dbg(sdata, + "time to refresh root mpath %pM\n", + orig_addr); mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH); + mpath->last_preq_to_root = jiffies; } - if ((SN_LT(mpath->sn, orig_sn) || (mpath->sn == orig_sn && - metric < mpath->rann_metric)) && ifmsh->mshcfg.dot11MeshForwarding) { + mpath->sn = orig_sn; + mpath->rann_metric = metric + metric_txsta; + mpath->is_root = true; + /* Recording RANNs sender address to send individually + * addressed PREQs destined for root mesh STA */ + memcpy(mpath->rann_snd_addr, mgmt->sa, ETH_ALEN); + + if (root_is_gate) + mesh_path_add_gate(mpath); + + if (ttl <= 1) { + ifmsh->mshstats.dropped_frames_ttl++; + rcu_read_unlock(); + return; + } + ttl--; + + if (ifmsh->mshcfg.dot11MeshForwarding) { mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr, cpu_to_le32(orig_sn), 0, NULL, 0, broadcast_addr, hopcount, ttl, cpu_to_le32(interval), cpu_to_le32(metric + metric_txsta), 0, sdata); - mpath->sn = orig_sn; - mpath->rann_metric = metric + metric_txsta; - /* Recording RANNs sender address to send individually - * addressed PREQs destined for root mesh STA */ - memcpy(mpath->rann_snd_addr, mgmt->sa, ETH_ALEN); } - mpath->is_root = true; - - if (root_is_gate) - mesh_path_add_gate(mpath); - rcu_read_unlock(); } @@ -889,7 +922,7 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags) preq_node = kmalloc(sizeof(struct mesh_preq_queue), GFP_ATOMIC); if (!preq_node) { - mhwmp_dbg("could not allocate PREQ node"); + mhwmp_dbg(sdata, "could not allocate PREQ node\n"); return; } @@ -898,7 +931,7 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags) spin_unlock_bh(&ifmsh->mesh_preq_queue_lock); kfree(preq_node); if (printk_ratelimit()) - mhwmp_dbg("PREQ node queue full"); + mhwmp_dbg(sdata, "PREQ node queue full\n"); return; } @@ -1021,12 +1054,15 @@ enddiscovery: kfree(preq_node); } -/* mesh_nexthop_resolve - lookup next hop for given skb and start path - * discovery if no forwarding information is found. +/** + * mesh_nexthop_resolve - lookup next hop; conditionally start path discovery * * @skb: 802.11 frame to be sent * @sdata: network subif the frame will be sent through * + * Lookup next hop for given skb and start path discovery if no + * forwarding information is found. + * * Returns: 0 if the next hop was found and -ENOENT if the frame was queued. * skb is freeed here if no mpath could be allocated. */ @@ -1146,7 +1182,7 @@ void mesh_path_timer(unsigned long data) if (!mpath->is_gate && mesh_gate_num(sdata) > 0) { ret = mesh_path_send_to_gates(mpath); if (ret) - mhwmp_dbg("no gate was reachable"); + mhwmp_dbg(sdata, "no gate was reachable\n"); } else mesh_path_flush_pending(mpath); } @@ -1157,13 +1193,34 @@ mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval; - u8 flags; + u8 flags, target_flags = 0; flags = (ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol) ? RANN_FLAG_IS_GATE : 0; - mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr, + + switch (ifmsh->mshcfg.dot11MeshHWMPRootMode) { + case IEEE80211_PROACTIVE_RANN: + mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr, cpu_to_le32(++ifmsh->sn), 0, NULL, 0, broadcast_addr, - 0, sdata->u.mesh.mshcfg.element_ttl, + 0, ifmsh->mshcfg.element_ttl, cpu_to_le32(interval), 0, 0, sdata); + break; + case IEEE80211_PROACTIVE_PREQ_WITH_PREP: + flags |= IEEE80211_PREQ_PROACTIVE_PREP_FLAG; + case IEEE80211_PROACTIVE_PREQ_NO_PREP: + interval = ifmsh->mshcfg.dot11MeshHWMPactivePathToRootTimeout; + target_flags |= IEEE80211_PREQ_TO_FLAG | + IEEE80211_PREQ_USN_FLAG; + mesh_path_sel_frame_tx(MPATH_PREQ, flags, sdata->vif.addr, + cpu_to_le32(++ifmsh->sn), target_flags, + (u8 *) broadcast_addr, 0, broadcast_addr, + 0, ifmsh->mshcfg.element_ttl, + cpu_to_le32(interval), + 0, cpu_to_le32(ifmsh->preq_id++), sdata); + break; + default: + mhwmp_dbg(sdata, "Proactive mechanism not supported\n"); + return; + } } diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index b39224d..075bc53 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -18,12 +18,6 @@ #include "ieee80211_i.h" #include "mesh.h" -#ifdef CONFIG_MAC80211_VERBOSE_MPATH_DEBUG -#define mpath_dbg(fmt, args...) printk(KERN_DEBUG fmt, ##args) -#else -#define mpath_dbg(fmt, args...) do { (void)(0); } while (0) -#endif - /* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */ #define INIT_PATHS_SIZE_ORDER 2 @@ -322,9 +316,8 @@ static void mesh_path_move_to_queue(struct mesh_path *gate_mpath, spin_lock_irqsave(&gate_mpath->frame_queue.lock, flags); skb_queue_splice(&gateq, &gate_mpath->frame_queue); - mpath_dbg("Mpath queue for gate %pM has %d frames\n", - gate_mpath->dst, - skb_queue_len(&gate_mpath->frame_queue)); + mpath_dbg(gate_mpath->sdata, "Mpath queue for gate %pM has %d frames\n", + gate_mpath->dst, skb_queue_len(&gate_mpath->frame_queue)); spin_unlock_irqrestore(&gate_mpath->frame_queue.lock, flags); if (!copy) @@ -446,9 +439,9 @@ int mesh_path_add_gate(struct mesh_path *mpath) hlist_add_head_rcu(&new_gate->list, tbl->known_gates); spin_unlock_bh(&tbl->gates_lock); rcu_read_unlock(); - mpath_dbg("Mesh path (%s): Recorded new gate: %pM. %d known gates\n", - mpath->sdata->name, mpath->dst, - mpath->sdata->u.mesh.num_gates); + mpath_dbg(mpath->sdata, + "Mesh path: Recorded new gate: %pM. %d known gates\n", + mpath->dst, mpath->sdata->u.mesh.num_gates); return 0; err_rcu: rcu_read_unlock(); @@ -477,8 +470,8 @@ static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath) spin_unlock_bh(&tbl->gates_lock); mpath->sdata->u.mesh.num_gates--; mpath->is_gate = false; - mpath_dbg("Mesh path (%s): Deleted gate: %pM. " - "%d known gates\n", mpath->sdata->name, + mpath_dbg(mpath->sdata, + "Mesh path: Deleted gate: %pM. %d known gates\n", mpath->dst, mpath->sdata->u.mesh.num_gates); break; } @@ -785,7 +778,7 @@ static void __mesh_path_del(struct mesh_table *tbl, struct mpath_node *node) /** * mesh_path_flush_by_nexthop - Deletes mesh paths if their next hop matches * - * @sta - mesh peer to match + * @sta: mesh peer to match * * RCU notes: this function is called when a mesh plink transitions from * PLINK_ESTAB to any other state, since PLINK_ESTAB state is the only one that @@ -840,7 +833,7 @@ static void table_flush_by_iface(struct mesh_table *tbl, * * This function deletes both mesh paths as well as mesh portal paths. * - * @sdata - interface data to match + * @sdata: interface data to match * */ void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata) @@ -946,19 +939,20 @@ int mesh_path_send_to_gates(struct mesh_path *mpath) continue; if (gate->mpath->flags & MESH_PATH_ACTIVE) { - mpath_dbg("Forwarding to %pM\n", gate->mpath->dst); + mpath_dbg(sdata, "Forwarding to %pM\n", gate->mpath->dst); mesh_path_move_to_queue(gate->mpath, from_mpath, copy); from_mpath = gate->mpath; copy = true; } else { - mpath_dbg("Not forwarding %p\n", gate->mpath); - mpath_dbg("flags %x\n", gate->mpath->flags); + mpath_dbg(sdata, + "Not forwarding %p (flags %#x)\n", + gate->mpath, gate->mpath->flags); } } hlist_for_each_entry_rcu(gate, n, known_gates, list) if (gate->mpath->sdata == sdata) { - mpath_dbg("Sending to %pM\n", gate->mpath->dst); + mpath_dbg(sdata, "Sending to %pM\n", gate->mpath->dst); mesh_path_tx_pending(gate->mpath); } diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 60ef235..af671b9 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -13,12 +13,6 @@ #include "rate.h" #include "mesh.h" -#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG -#define mpl_dbg(fmt, args...) printk(KERN_DEBUG fmt, ##args) -#else -#define mpl_dbg(fmt, args...) do { (void)(0); } while (0) -#endif - #define PLINK_GET_LLID(p) (p + 2) #define PLINK_GET_PLID(p) (p + 4) @@ -105,7 +99,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, return sta; } -/* +/** * mesh_set_ht_prot_mode - set correct HT protection mode * * Section 9.23.3.5 of IEEE 80211-2012 describes the protection rules for HT @@ -134,12 +128,14 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata) switch (sta->ch_type) { case NL80211_CHAN_NO_HT: - mpl_dbg("mesh_plink %pM: nonHT sta (%pM) is present", + 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: - mpl_dbg("mesh_plink %pM: HT20 sta (%pM) is present", + mpl_dbg(sdata, + "mesh_plink %pM: HT20 sta (%pM) is present\n", sdata->vif.addr, sta->sta.addr); ht20_sta = true; default: @@ -160,7 +156,8 @@ out: sdata->vif.bss_conf.ht_operation_mode = ht_opmode; sdata->u.mesh.mshcfg.ht_opmode = ht_opmode; changed = BSS_CHANGED_HT; - mpl_dbg("mesh_plink %pM: protection mode changed to %d", + mpl_dbg(sdata, + "mesh_plink %pM: protection mode changed to %d\n", sdata->vif.addr, ht_opmode); } @@ -261,8 +258,8 @@ 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->vif, skb, true) || - ieee80211_add_ext_srates_ie(&sdata->vif, skb, true) || + if (ieee80211_add_srates_ie(sdata, skb, true) || + ieee80211_add_ext_srates_ie(sdata, skb, true) || mesh_add_rsn_ie(skb, sdata) || mesh_add_meshid_ie(skb, sdata) || mesh_add_meshconf_ie(skb, sdata)) @@ -323,7 +320,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, return 0; } -/* mesh_peer_init - initialize new mesh peer and return resulting sta_info +/** + * mesh_peer_init - initialize new mesh peer and return resulting sta_info * * @sdata: local meshif * @addr: peer's address @@ -437,7 +435,8 @@ static void mesh_plink_timer(unsigned long data) spin_unlock_bh(&sta->lock); return; } - mpl_dbg("Mesh plink timer for %pM fired on state %d\n", + mpl_dbg(sta->sdata, + "Mesh plink timer for %pM fired on state %d\n", sta->sta.addr, sta->plink_state); reason = 0; llid = sta->llid; @@ -450,7 +449,8 @@ static void mesh_plink_timer(unsigned long data) /* retry timer */ if (sta->plink_retries < dot11MeshMaxRetries(sdata)) { u32 rand; - mpl_dbg("Mesh plink for %pM (retry, timeout): %d %d\n", + mpl_dbg(sta->sdata, + "Mesh plink for %pM (retry, timeout): %d %d\n", sta->sta.addr, sta->plink_retries, sta->plink_timeout); get_random_bytes(&rand, sizeof(u32)); @@ -530,7 +530,8 @@ int mesh_plink_open(struct sta_info *sta) sta->plink_state = NL80211_PLINK_OPN_SNT; mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata)); spin_unlock_bh(&sta->lock); - mpl_dbg("Mesh plink: starting establishment with %pM\n", + mpl_dbg(sdata, + "Mesh plink: starting establishment with %pM\n", sta->sta.addr); return mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_OPEN, @@ -565,7 +566,6 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m u8 *baseaddr; u32 changed = 0; __le16 plid, llid, reason; -#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG static const char *mplstates[] = { [NL80211_PLINK_LISTEN] = "LISTEN", [NL80211_PLINK_OPN_SNT] = "OPN-SNT", @@ -575,14 +575,14 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m [NL80211_PLINK_HOLDING] = "HOLDING", [NL80211_PLINK_BLOCKED] = "BLOCKED" }; -#endif /* need action_code, aux */ if (len < IEEE80211_MIN_ACTION_SIZE + 3) return; if (is_multicast_ether_addr(mgmt->da)) { - mpl_dbg("Mesh plink: ignore frame from multicast address"); + mpl_dbg(sdata, + "Mesh plink: ignore frame from multicast address\n"); return; } @@ -595,12 +595,14 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } ieee802_11_parse_elems(baseaddr, len - baselen, &elems); if (!elems.peering) { - mpl_dbg("Mesh plink: missing necessary peer link ie\n"); + mpl_dbg(sdata, + "Mesh plink: missing necessary peer link ie\n"); return; } if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) { - mpl_dbg("Mesh plink: can't establish link with secure peer\n"); + mpl_dbg(sdata, + "Mesh plink: can't establish link with secure peer\n"); return; } @@ -610,14 +612,15 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m (ftype == WLAN_SP_MESH_PEERING_CONFIRM && ie_len != 6) || (ftype == WLAN_SP_MESH_PEERING_CLOSE && ie_len != 6 && ie_len != 8)) { - mpl_dbg("Mesh plink: incorrect plink ie length %d %d\n", - ftype, ie_len); + mpl_dbg(sdata, + "Mesh plink: incorrect plink ie length %d %d\n", + ftype, ie_len); return; } if (ftype != WLAN_SP_MESH_PEERING_CLOSE && (!elems.mesh_id || !elems.mesh_config)) { - mpl_dbg("Mesh plink: missing necessary ie\n"); + mpl_dbg(sdata, "Mesh plink: missing necessary ie\n"); return; } /* Note the lines below are correct, the llid in the frame is the plid @@ -632,21 +635,21 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta = sta_info_get(sdata, mgmt->sa); if (!sta && ftype != WLAN_SP_MESH_PEERING_OPEN) { - mpl_dbg("Mesh plink: cls or cnf from unknown peer\n"); + mpl_dbg(sdata, "Mesh plink: cls or cnf from unknown peer\n"); rcu_read_unlock(); return; } if (ftype == WLAN_SP_MESH_PEERING_OPEN && !rssi_threshold_check(sta, sdata)) { - mpl_dbg("Mesh plink: %pM does not meet rssi threshold\n", + mpl_dbg(sdata, "Mesh plink: %pM does not meet rssi threshold\n", mgmt->sa); rcu_read_unlock(); return; } if (sta && !test_sta_flag(sta, WLAN_STA_AUTH)) { - mpl_dbg("Mesh plink: Action frame from non-authed peer\n"); + mpl_dbg(sdata, "Mesh plink: Action frame from non-authed peer\n"); rcu_read_unlock(); return; } @@ -683,7 +686,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } else if (!sta) { /* ftype == WLAN_SP_MESH_PEERING_OPEN */ if (!mesh_plink_free_count(sdata)) { - mpl_dbg("Mesh plink error: no more free plinks\n"); + mpl_dbg(sdata, "Mesh plink error: no more free plinks\n"); rcu_read_unlock(); return; } @@ -724,7 +727,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m event = CLS_ACPT; break; default: - mpl_dbg("Mesh plink: unknown frame subtype\n"); + mpl_dbg(sdata, "Mesh plink: unknown frame subtype\n"); rcu_read_unlock(); return; } @@ -734,13 +737,14 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m /* allocate sta entry if necessary and update info */ sta = mesh_peer_init(sdata, mgmt->sa, &elems); if (!sta) { - mpl_dbg("Mesh plink: failed to init peer!\n"); + mpl_dbg(sdata, "Mesh plink: failed to init peer!\n"); rcu_read_unlock(); return; } } - mpl_dbg("Mesh plink (peer, state, llid, plid, event): %pM %s %d %d %d\n", + mpl_dbg(sdata, + "Mesh plink (peer, state, llid, plid, event): %pM %s %d %d %d\n", mgmt->sa, mplstates[sta->plink_state], le16_to_cpu(sta->llid), le16_to_cpu(sta->plid), event); @@ -851,7 +855,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m mesh_plink_inc_estab_count(sdata); changed |= mesh_set_ht_prot_mode(sdata); changed |= BSS_CHANGED_BEACON; - mpl_dbg("Mesh plink with %pM ESTABLISHED\n", + mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr); break; default: @@ -887,7 +891,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m mesh_plink_inc_estab_count(sdata); changed |= mesh_set_ht_prot_mode(sdata); changed |= BSS_CHANGED_BEACON; - mpl_dbg("Mesh plink with %pM ESTABLISHED\n", + mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr); mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CONFIRM, diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c index 38d30e8..accfa00 100644 --- a/net/mac80211/mesh_sync.c +++ b/net/mac80211/mesh_sync.c @@ -12,13 +12,6 @@ #include "mesh.h" #include "driver-ops.h" -#ifdef CONFIG_MAC80211_VERBOSE_MESH_SYNC_DEBUG -#define msync_dbg(fmt, args...) \ - printk(KERN_DEBUG "Mesh sync (%s): " fmt "\n", sdata->name, ##args) -#else -#define msync_dbg(fmt, args...) do { (void)(0); } while (0) -#endif - /* This is not in the standard. It represents a tolerable tbtt drift below * which we do no TSF adjustment. */ @@ -65,14 +58,14 @@ void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata) spin_lock_bh(&ifmsh->sync_offset_lock); if (ifmsh->sync_offset_clockdrift_max < beacon_int_fraction) { - msync_dbg("TBTT : max clockdrift=%lld; adjusting", - (long long) ifmsh->sync_offset_clockdrift_max); + msync_dbg(sdata, "TBTT : max clockdrift=%lld; adjusting\n", + (long long) ifmsh->sync_offset_clockdrift_max); tsfdelta = -ifmsh->sync_offset_clockdrift_max; ifmsh->sync_offset_clockdrift_max = 0; } else { - msync_dbg("TBTT : max clockdrift=%lld; adjusting by %llu", - (long long) ifmsh->sync_offset_clockdrift_max, - (unsigned long long) beacon_int_fraction); + msync_dbg(sdata, "TBTT : max clockdrift=%lld; adjusting by %llu\n", + (long long) ifmsh->sync_offset_clockdrift_max, + (unsigned long long) beacon_int_fraction); tsfdelta = -beacon_int_fraction; ifmsh->sync_offset_clockdrift_max -= beacon_int_fraction; } @@ -120,7 +113,7 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (elems->mesh_config && mesh_peer_tbtt_adjusting(elems)) { clear_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN); - msync_dbg("STA %pM : is adjusting TBTT", sta->sta.addr); + msync_dbg(sdata, "STA %pM : is adjusting TBTT\n", sta->sta.addr); goto no_sync; } @@ -169,7 +162,8 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { s64 t_clockdrift = sta->t_offset_setpoint - sta->t_offset; - msync_dbg("STA %pM : sta->t_offset=%lld, sta->t_offset_setpoint=%lld, t_clockdrift=%lld", + msync_dbg(sdata, + "STA %pM : sta->t_offset=%lld, sta->t_offset_setpoint=%lld, t_clockdrift=%lld\n", sta->sta.addr, (long long) sta->t_offset, (long long) @@ -178,7 +172,8 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (t_clockdrift > TOFFSET_MAXIMUM_ADJUSTMENT || t_clockdrift < -TOFFSET_MAXIMUM_ADJUSTMENT) { - msync_dbg("STA %pM : t_clockdrift=%lld too large, setpoint reset", + msync_dbg(sdata, + "STA %pM : t_clockdrift=%lld too large, setpoint reset\n", sta->sta.addr, (long long) t_clockdrift); clear_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN); @@ -197,8 +192,8 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, } else { sta->t_offset_setpoint = sta->t_offset - TOFFSET_SET_MARGIN; set_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN); - msync_dbg("STA %pM : offset was invalid, " - " sta->t_offset=%lld", + msync_dbg(sdata, + "STA %pM : offset was invalid, sta->t_offset=%lld\n", sta->sta.addr, (long long) sta->t_offset); rcu_read_unlock(); @@ -226,17 +221,15 @@ static void mesh_sync_offset_adjust_tbtt(struct ieee80211_sub_if_data *sdata) * to the driver tsf setter, we punt * the tsf adjustment to the mesh tasklet */ - msync_dbg("TBTT : kicking off TBTT " - "adjustment with " - "clockdrift_max=%lld", - ifmsh->sync_offset_clockdrift_max); + msync_dbg(sdata, + "TBTT : kicking off TBTT adjustment with clockdrift_max=%lld\n", + ifmsh->sync_offset_clockdrift_max); set_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags); } else { - msync_dbg("TBTT : max clockdrift=%lld; " - "too small to adjust", - (long long) - ifmsh->sync_offset_clockdrift_max); + 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; } spin_unlock_bh(&ifmsh->sync_offset_lock); @@ -268,7 +261,7 @@ static void mesh_sync_vendor_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, const u8 *oui; WARN_ON(sdata->u.mesh.mesh_sp_id != IEEE80211_SYNC_METHOD_VENDOR); - msync_dbg("called mesh_sync_vendor_rx_bcn_presp"); + 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 */ } @@ -278,7 +271,7 @@ 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("called mesh_sync_vendor_adjust_tbtt"); + 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 */ } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 0db5d34..cef0c9e 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -258,12 +258,11 @@ static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len, } static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, const u8 *ht_oper_ie, + struct sk_buff *skb, u8 ap_ht_param, struct ieee80211_supported_band *sband, struct ieee80211_channel *channel, enum ieee80211_smps_mode smps) { - struct ieee80211_ht_operation *ht_oper; u8 *pos; u32 flags = channel->flags; u16 cap; @@ -271,21 +270,13 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); - if (!ht_oper_ie) - return; - - if (ht_oper_ie[1] < sizeof(struct ieee80211_ht_operation)) - return; - memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); ieee80211_apply_htcap_overrides(sdata, &ht_cap); - ht_oper = (struct ieee80211_ht_operation *)(ht_oper_ie + 2); - /* determine capability flags */ cap = ht_cap.cap; - switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_HT40PLUS) { cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; @@ -509,7 +500,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) } if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) - ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_operation_ie, + ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param, sband, local->oper_channel, ifmgd->ap_smps); /* if present, add any custom non-vendor IEs that go after HT */ @@ -550,6 +541,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) memcpy(pos, assoc_data->ie + offset, noffset - offset); } + drv_mgd_prepare_tx(local, sdata); + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; ieee80211_tx_skb(sdata, skb); } @@ -589,6 +582,9 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED)) IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + + drv_mgd_prepare_tx(local, sdata); + ieee80211_tx_skb(sdata, skb); } } @@ -911,9 +907,6 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) if (!mgd->associated) return false; - if (!mgd->associated->beacon_ies) - return false; - if (mgd->flags & (IEEE80211_STA_BEACON_POLL | IEEE80211_STA_CONNECTION_POLL)) return false; @@ -939,11 +932,6 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) return; } - if (!list_empty(&local->work_list)) { - local->ps_sdata = NULL; - goto change; - } - list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) continue; @@ -1016,7 +1004,6 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) local->ps_sdata = NULL; } - change: ieee80211_change_ps(local); } @@ -1121,7 +1108,7 @@ void ieee80211_dynamic_ps_timer(unsigned long data) } /* MLME */ -static void ieee80211_sta_wmm_params(struct ieee80211_local *local, +static bool ieee80211_sta_wmm_params(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, u8 *wmm_param, size_t wmm_param_len) { @@ -1132,23 +1119,23 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, u8 *pos, uapsd_queues = 0; if (!local->ops->conf_tx) - return; + return false; if (local->hw.queues < IEEE80211_NUM_ACS) - return; + return false; if (!wmm_param) - return; + return false; if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) - return; + return false; if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) uapsd_queues = ifmgd->uapsd_queues; count = wmm_param[6] & 0x0f; if (count == ifmgd->wmm_last_param_set) - return; + return false; ifmgd->wmm_last_param_set = count; pos = wmm_param + 8; @@ -1156,7 +1143,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, memset(¶ms, 0, sizeof(params)); - local->wmm_acm = 0; + sdata->wmm_acm = 0; for (; left >= 4; left -= 4, pos += 4) { int aci = (pos[0] >> 5) & 0x03; int acm = (pos[0] >> 4) & 0x01; @@ -1167,21 +1154,21 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, case 1: /* AC_BK */ queue = 3; if (acm) - local->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ + sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) uapsd = true; break; case 2: /* AC_VI */ queue = 1; if (acm) - local->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ + sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) uapsd = true; break; case 3: /* AC_VO */ queue = 0; if (acm) - local->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ + sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) uapsd = true; break; @@ -1189,7 +1176,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, default: queue = 2; if (acm) - local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ + sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) uapsd = true; break; @@ -1201,23 +1188,21 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, params.txop = get_unaligned_le16(pos + 2); params.uapsd = uapsd; -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, - "WMM queue=%d aci=%d acm=%d aifs=%d " - "cWmin=%d cWmax=%d txop=%d uapsd=%d\n", - queue, aci, acm, - params.aifs, params.cw_min, params.cw_max, - params.txop, params.uapsd); -#endif + mlme_dbg(sdata, + "WMM queue=%d aci=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d\n", + queue, aci, acm, + params.aifs, params.cw_min, params.cw_max, + params.txop, params.uapsd); sdata->tx_conf[queue] = params; if (drv_conf_tx(local, sdata, queue, ¶ms)) - wiphy_debug(local->hw.wiphy, - "failed to set TX queue parameters for queue %d\n", - queue); + sdata_err(sdata, + "failed to set TX queue parameters for queue %d\n", + queue); } /* enable WMM or activate new settings */ sdata->vif.bss_conf.qos = true; + return true; } static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) @@ -1284,13 +1269,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; bss_info_changed |= BSS_CHANGED_ASSOC; - /* set timing information */ - bss_conf->beacon_int = cbss->beacon_interval; - bss_conf->last_tsf = cbss->tsf; - - bss_info_changed |= BSS_CHANGED_BEACON_INT; bss_info_changed |= ieee80211_handle_bss_capability(sdata, - cbss->capability, bss->has_erp_value, bss->erp_value); + bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value); sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec( IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int)); @@ -1380,6 +1360,21 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, } mutex_unlock(&local->sta_mtx); + /* + * if we want to get out of ps before disassoc (why?) we have + * to do it before sending disassoc, as otherwise the null-packet + * won't be valid. + */ + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + local->ps_sdata = NULL; + + /* flush out any pending frame (e.g. DELBA) before deauth/disassoc */ + if (tx) + drv_flush(local, false); + /* deauthenticate/disassociate now */ if (tx || frame_buf) ieee80211_send_deauth_disassoc(sdata, ifmgd->bssid, stype, @@ -1411,12 +1406,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, del_timer_sync(&local->dynamic_ps_timer); cancel_work_sync(&local->dynamic_ps_enable_work); - if (local->hw.conf.flags & IEEE80211_CONF_PS) { - local->hw.conf.flags &= ~IEEE80211_CONF_PS; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); - } - local->ps_sdata = NULL; - /* Disable ARP filtering */ if (sdata->vif.bss_conf.arp_filter_enabled) { sdata->vif.bss_conf.arp_filter_enabled = false; @@ -1581,11 +1570,12 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, goto out; } -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG if (beacon) - net_dbg_ratelimited("%s: detected beacon loss from AP - sending probe request\n", - sdata->name); -#endif + mlme_dbg_ratelimited(sdata, + "detected beacon loss from AP - sending probe request\n"); + + ieee80211_cqm_rssi_notify(&sdata->vif, + NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL); /* * The driver/our work has already reported this event or the @@ -1627,6 +1617,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct cfg80211_bss *cbss; struct sk_buff *skb; const u8 *ssid; int ssid_len; @@ -1636,16 +1627,22 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, ASSERT_MGD_MTX(ifmgd); - if (!ifmgd->associated) + if (ifmgd->associated) + cbss = ifmgd->associated; + else if (ifmgd->auth_data) + cbss = ifmgd->auth_data->bss; + else if (ifmgd->assoc_data) + cbss = ifmgd->assoc_data->bss; + else return NULL; - ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID); + ssid = ieee80211_bss_get_ie(cbss, WLAN_EID_SSID); if (WARN_ON_ONCE(ssid == NULL)) ssid_len = 0; else ssid_len = ssid[1]; - skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid, + skb = ieee80211_build_probe_req(sdata, cbss->bssid, (u32) -1, ssid + 2, ssid_len, NULL, 0, true); @@ -1668,8 +1665,7 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); - printk(KERN_DEBUG "%s: Connection to AP %pM lost.\n", - sdata->name, bssid); + sdata_info(sdata, "Connection to AP %pM lost\n", bssid); ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, @@ -1765,6 +1761,7 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, if (!elems.challenge) return; auth_data->expected_transaction = 4; + drv_mgd_prepare_tx(sdata->local, sdata); ieee80211_send_auth(sdata, 3, auth_data->algorithm, elems.challenge - 2, elems.challenge_len + 2, auth_data->bss->bssid, auth_data->bss->bssid, @@ -1803,9 +1800,10 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, return RX_MGMT_NONE; if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: %pM denied authentication (status %d)\n", - sdata->name, mgmt->sa, status_code); - goto out; + sdata_info(sdata, "%pM denied authentication (status %d)\n", + mgmt->sa, status_code); + ieee80211_destroy_auth_data(sdata, false); + return RX_MGMT_CFG80211_RX_AUTH; } switch (ifmgd->auth_data->algorithm) { @@ -1826,8 +1824,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, return RX_MGMT_NONE; } - printk(KERN_DEBUG "%s: authenticated\n", sdata->name); - out: + sdata_info(sdata, "authenticated\n"); ifmgd->auth_data->done = true; ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; run_again(ifmgd, ifmgd->auth_data->timeout); @@ -1840,8 +1837,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, goto out_err; } if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { - printk(KERN_DEBUG "%s: failed moving %pM to auth\n", - sdata->name, bssid); + sdata_info(sdata, "failed moving %pM to auth\n", bssid); goto out_err; } mutex_unlock(&sdata->local->sta_mtx); @@ -1875,8 +1871,8 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n", - sdata->name, bssid, reason_code); + sdata_info(sdata, "deauthenticated from %pM (Reason: %u)\n", + bssid, reason_code); ieee80211_set_disassoc(sdata, 0, 0, false, NULL); @@ -1906,8 +1902,8 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); - printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n", - sdata->name, mgmt->sa, reason_code); + sdata_info(sdata, "disassociated from %pM (Reason: %u)\n", + mgmt->sa, reason_code); ieee80211_set_disassoc(sdata, 0, 0, false, NULL); @@ -1999,17 +1995,15 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) - printk(KERN_DEBUG - "%s: invalid AID value 0x%x; bits 15:14 not set\n", - sdata->name, aid); + sdata_info(sdata, "invalid AID value 0x%x; bits 15:14 not set\n", + aid); aid &= ~(BIT(15) | BIT(14)); ifmgd->broken_ap = false; if (aid == 0 || aid > IEEE80211_MAX_AID) { - printk(KERN_DEBUG - "%s: invalid AID value %d (out of range), turn off PS\n", - sdata->name, aid); + sdata_info(sdata, "invalid AID value %d (out of range), turn off PS\n", + aid); aid = 0; ifmgd->broken_ap = true; } @@ -2018,8 +2012,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); if (!elems.supp_rates) { - printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n", - sdata->name); + sdata_info(sdata, "no SuppRates element in AssocResp\n"); return false; } @@ -2059,9 +2052,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); if (err) { - printk(KERN_DEBUG - "%s: failed to move station %pM to desired state\n", - sdata->name, sta->sta.addr); + sdata_info(sdata, + "failed to move station %pM to desired state\n", + sta->sta.addr); WARN_ON(__sta_info_destroy(sta)); mutex_unlock(&sdata->local->sta_mtx); return false; @@ -2144,10 +2137,10 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); aid = le16_to_cpu(mgmt->u.assoc_resp.aid); - printk(KERN_DEBUG "%s: RX %sssocResp from %pM (capab=0x%x " - "status=%d aid=%d)\n", - sdata->name, reassoc ? "Rea" : "A", mgmt->sa, - capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); + sdata_info(sdata, + "RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", + reassoc ? "Rea" : "A", mgmt->sa, + capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); pos = mgmt->u.assoc_resp.variable; ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); @@ -2158,9 +2151,9 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, u32 tu, ms; tu = get_unaligned_le32(elems.timeout_int + 1); ms = tu * 1024 / 1000; - printk(KERN_DEBUG "%s: %pM rejected association temporarily; " - "comeback duration %u TU (%u ms)\n", - sdata->name, mgmt->sa, tu, ms); + sdata_info(sdata, + "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", + mgmt->sa, tu, ms); assoc_data->timeout = jiffies + msecs_to_jiffies(ms); if (ms > IEEE80211_ASSOC_TIMEOUT) run_again(ifmgd, assoc_data->timeout); @@ -2170,8 +2163,8 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, *bss = assoc_data->bss; if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: %pM denied association (code=%d)\n", - sdata->name, mgmt->sa, status_code); + sdata_info(sdata, "%pM denied association (code=%d)\n", + mgmt->sa, status_code); ieee80211_destroy_assoc_data(sdata, false); } else { if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) { @@ -2180,7 +2173,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, cfg80211_put_bss(*bss); return RX_MGMT_CFG80211_ASSOC_TIMEOUT; } - printk(KERN_DEBUG "%s: associated\n", sdata->name); + sdata_info(sdata, "associated\n"); /* * destroy assoc_data afterwards, as otherwise an idle @@ -2280,7 +2273,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, if (ifmgd->auth_data && !ifmgd->auth_data->bss->proberesp_ies && ether_addr_equal(mgmt->bssid, ifmgd->auth_data->bss->bssid)) { /* got probe response, continue with auth */ - printk(KERN_DEBUG "%s: direct probe responded\n", sdata->name); + sdata_info(sdata, "direct probe responded\n"); ifmgd->auth_data->tries = 0; ifmgd->auth_data->timeout = jiffies; run_again(ifmgd, ifmgd->auth_data->timeout); @@ -2416,10 +2409,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - net_dbg_ratelimited("%s: cancelling probereq poll due to a received beacon\n", - sdata->name); -#endif + mlme_dbg_ratelimited(sdata, + "cancelling probereq poll due to a received beacon\n"); mutex_lock(&local->mtx); ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL; ieee80211_run_deferred_scan(local); @@ -2445,14 +2436,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len, ifmgd->aid); - if (ncrc != ifmgd->beacon_crc || !ifmgd->beacon_crc_valid) { - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, - true); - - ieee80211_sta_wmm_params(local, sdata, elems.wmm_param, - elems.wmm_param_len); - } - if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) { if (directed_tim) { if (local->hw.conf.dynamic_ps_timeout > 0) { @@ -2483,6 +2466,13 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, ifmgd->beacon_crc = ncrc; ifmgd->beacon_crc_valid = true; + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, + true); + + if (ieee80211_sta_wmm_params(local, sdata, elems.wmm_param, + elems.wmm_param_len)) + changed |= BSS_CHANGED_QOS; + if (elems.erp_info && elems.erp_info_len >= 1) { erp_valid = true; erp_value = elems.erp_info[0]; @@ -2642,8 +2632,8 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) auth_data->tries++; if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { - printk(KERN_DEBUG "%s: authentication with %pM timed out\n", - sdata->name, auth_data->bss->bssid); + sdata_info(sdata, "authentication with %pM timed out\n", + auth_data->bss->bssid); /* * Most likely AP is not in the range so remove the @@ -2654,10 +2644,12 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) return -ETIMEDOUT; } + drv_mgd_prepare_tx(local, sdata); + if (auth_data->bss->proberesp_ies) { - printk(KERN_DEBUG "%s: send auth to %pM (try %d/%d)\n", - sdata->name, auth_data->bss->bssid, auth_data->tries, - IEEE80211_AUTH_MAX_TRIES); + 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, @@ -2667,9 +2659,9 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) } else { const u8 *ssidie; - printk(KERN_DEBUG "%s: direct probe to %pM (try %d/%i)\n", - sdata->name, auth_data->bss->bssid, auth_data->tries, - IEEE80211_AUTH_MAX_TRIES); + sdata_info(sdata, "direct probe to %pM (try %d/%i)\n", + auth_data->bss->bssid, auth_data->tries, + IEEE80211_AUTH_MAX_TRIES); ssidie = ieee80211_bss_get_ie(auth_data->bss, WLAN_EID_SSID); if (!ssidie) @@ -2697,8 +2689,8 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) assoc_data->tries++; if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { - printk(KERN_DEBUG "%s: association with %pM timed out\n", - sdata->name, assoc_data->bss->bssid); + sdata_info(sdata, "association with %pM timed out\n", + assoc_data->bss->bssid); /* * Most likely AP is not in the range so remove the @@ -2709,9 +2701,9 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) return -ETIMEDOUT; } - printk(KERN_DEBUG "%s: associate with %pM (try %d/%d)\n", - sdata->name, assoc_data->bss->bssid, assoc_data->tries, - IEEE80211_ASSOC_MAX_TRIES); + sdata_info(sdata, "associate with %pM (try %d/%d)\n", + assoc_data->bss->bssid, assoc_data->tries, + IEEE80211_ASSOC_MAX_TRIES); ieee80211_send_assoc(sdata); assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; @@ -2784,45 +2776,31 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) ieee80211_reset_ap_probe(sdata); else if (ifmgd->nullfunc_failed) { if (ifmgd->probe_send_count < max_tries) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, - "%s: No ack for nullfunc frame to" - " AP %pM, try %d/%i\n", - sdata->name, bssid, - ifmgd->probe_send_count, max_tries); -#endif + mlme_dbg(sdata, + "No ack for nullfunc frame to AP %pM, try %d/%i\n", + bssid, ifmgd->probe_send_count, + max_tries); ieee80211_mgd_probe_ap_send(sdata); } else { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, - "%s: No ack for nullfunc frame to" - " AP %pM, disconnecting.\n", - sdata->name, bssid); -#endif + mlme_dbg(sdata, + "No ack for nullfunc frame to AP %pM, disconnecting.\n", + bssid); ieee80211_sta_connection_lost(sdata, bssid, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); } } else if (time_is_after_jiffies(ifmgd->probe_timeout)) run_again(ifmgd, ifmgd->probe_timeout); else if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, - "%s: Failed to send nullfunc to AP %pM" - " after %dms, disconnecting.\n", - sdata->name, - bssid, probe_wait_ms); -#endif + mlme_dbg(sdata, + "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", + bssid, probe_wait_ms); ieee80211_sta_connection_lost(sdata, bssid, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); } else if (ifmgd->probe_send_count < max_tries) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, - "%s: No probe response from AP %pM" - " after %dms, try %d/%i\n", - sdata->name, - bssid, probe_wait_ms, - ifmgd->probe_send_count, max_tries); -#endif + mlme_dbg(sdata, + "No probe response from AP %pM after %dms, try %d/%i\n", + bssid, probe_wait_ms, + ifmgd->probe_send_count, max_tries); ieee80211_mgd_probe_ap_send(sdata); } else { /* @@ -2937,11 +2915,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; mutex_lock(&ifmgd->mtx); if (ifmgd->associated) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(sdata->local->hw.wiphy, - "%s: driver requested disconnect after resume.\n", - sdata->name); -#endif + mlme_dbg(sdata, + "driver requested disconnect after resume\n"); ieee80211_sta_connection_lost(sdata, ifmgd->associated->bssid, WLAN_REASON_UNSPECIFIED); @@ -2999,7 +2974,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) /* scan finished notification */ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) { - struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_sub_if_data *sdata; /* Restart STA timers */ rcu_read_lock(); @@ -3029,7 +3004,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_bss *bss = (void *)cbss->priv; - struct sta_info *sta; + struct sta_info *sta = NULL; bool have_sta = false; int err; int ht_cfreq; @@ -3082,13 +3057,11 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, * since we look at probe response/beacon data here * it should be OK. */ - printk(KERN_DEBUG - "%s: Wrong control channel: center-freq: %d" - " ht-cfreq: %d ht->primary_chan: %d" - " band: %d. Disabling HT.\n", - sdata->name, cbss->channel->center_freq, - ht_cfreq, ht_oper->primary_chan, - cbss->channel->band); + 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; } } @@ -3112,9 +3085,8 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, if (!ieee80211_set_channel_type(local, sdata, channel_type)) { /* can only fail due to HT40+/- mismatch */ channel_type = NL80211_CHAN_HT20; - printk(KERN_DEBUG - "%s: disabling 40 MHz due to multi-vif mismatch\n", - sdata->name); + 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)); @@ -3123,7 +3095,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, local->oper_channel = cbss->channel; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - if (!have_sta) { + if (sta) { u32 rates = 0, basic_rates = 0; bool have_higher_than_11mbit; int min_rate = INT_MAX, min_rate_index = -1; @@ -3143,9 +3115,8 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, * we can connect -- with a warning. */ if (!basic_rates && min_rate_index >= 0) { - printk(KERN_DEBUG - "%s: No basic rates, using min rate instead.\n", - sdata->name); + sdata_info(sdata, + "No basic rates, using min rate instead\n"); basic_rates = BIT(min_rate_index); } @@ -3161,9 +3132,15 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, memcpy(ifmgd->bssid, cbss->bssid, ETH_ALEN); - /* tell driver about BSSID and basic rates */ + /* set timing information */ + sdata->vif.bss_conf.beacon_int = cbss->beacon_interval; + sdata->vif.bss_conf.sync_tsf = cbss->tsf; + sdata->vif.bss_conf.sync_device_ts = bss->device_ts; + + /* tell driver about BSSID, basic rates and timing */ ieee80211_bss_info_change_notify(sdata, - BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES); + BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES | + BSS_CHANGED_BEACON_INT); if (assoc) sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); @@ -3171,9 +3148,9 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, err = sta_info_insert(sta); sta = NULL; if (err) { - printk(KERN_DEBUG - "%s: failed to insert STA entry for the AP (error %d)\n", - sdata->name, err); + sdata_info(sdata, + "failed to insert STA entry for the AP (error %d)\n", + err); return err; } } else @@ -3251,8 +3228,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, if (ifmgd->associated) ieee80211_set_disassoc(sdata, 0, 0, false, NULL); - printk(KERN_DEBUG "%s: authenticate with %pM\n", - sdata->name, req->bss->bssid); + sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid); err = ieee80211_prep_connection(sdata, req->bss, false); if (err) @@ -3287,7 +3263,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss *bss = (void *)req->bss->priv; struct ieee80211_mgd_assoc_data *assoc_data; struct ieee80211_supported_band *sband; - const u8 *ssidie; + const u8 *ssidie, *ht_ie; int i, err; ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID); @@ -3335,11 +3311,15 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, * We can set this to true for non-11n hardware, that'll be checked * separately along with the peer capabilities. */ - for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) + for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { 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) + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + netdev_info(sdata->dev, + "disabling HT due to WEP/TKIP use\n"); + } + } if (req->flags & ASSOC_REQ_DISABLE_HT) ifmgd->flags |= IEEE80211_STA_DISABLE_11N; @@ -3347,8 +3327,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, /* Also disable HT if we don't support it or the AP doesn't use WMM */ sband = local->hw.wiphy->bands[req->bss->channel->band]; if (!sband->ht_cap.ht_supported || - local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) + local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) { ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + netdev_info(sdata->dev, + "disabling HT as WMM/QoS is not supported\n"); + } memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, @@ -3374,8 +3357,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, (local->hw.queues >= IEEE80211_NUM_ACS); assoc_data->supp_rates = bss->supp_rates; assoc_data->supp_rates_len = bss->supp_rates_len; - assoc_data->ht_operation_ie = - ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION); + + 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; if (bss->wmm_used && bss->uapsd_supported && (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) { @@ -3422,8 +3410,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, * Wait up to one beacon interval ... * should this be more if we miss one? */ - printk(KERN_DEBUG "%s: waiting for beacon from %pM\n", - sdata->name, ifmgd->bssid); + sdata_info(sdata, "waiting for beacon from %pM\n", + ifmgd->bssid); assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); } else { assoc_data->have_beacon = true; @@ -3442,8 +3430,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, corrupt_type = "beacon"; } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) corrupt_type = "probe response"; - printk(KERN_DEBUG "%s: associating with AP with corrupt %s\n", - sdata->name, corrupt_type); + sdata_info(sdata, "associating with AP with corrupt %s\n", + corrupt_type); } err = 0; @@ -3472,9 +3460,9 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, return 0; } - printk(KERN_DEBUG - "%s: deauthenticating from %pM by local choice (reason=%d)\n", - sdata->name, req->bssid, req->reason_code); + 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)) @@ -3516,8 +3504,9 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, return -ENOLINK; } - printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n", - sdata->name, req->bss->bssid, req->reason_code); + sdata_info(sdata, + "disassociating from %pM by local choice (reason=%d)\n", + req->bss->bssid, req->reason_code); memcpy(bssid, req->bss->bssid, ETH_ALEN); ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, @@ -3558,10 +3547,3 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp); } EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); - -unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif) -{ - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - return sdata->dev->operstate; -} -EXPORT_SYMBOL(ieee80211_get_operstate); diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 935aa4b..635c325 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -15,7 +15,7 @@ #include <linux/export.h> #include <net/mac80211.h> #include "ieee80211_i.h" -#include "driver-trace.h" +#include "driver-ops.h" /* * Tell our hardware to disable PS. @@ -24,8 +24,7 @@ * because we *may* be doing work on-operating channel, and want our * hardware unconditionally awake, but still let the AP send us normal frames. */ -static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata, - bool tell_ap) +static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -46,8 +45,8 @@ static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata, ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } - if (tell_ap && (!local->offchannel_ps_enabled || - !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))) + if (!local->offchannel_ps_enabled || + !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) /* * If power save was enabled, no need to send a nullfunc * frame because AP knows that we are sleeping. But if the @@ -132,7 +131,7 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, if (offchannel_ps_enable && (sdata->vif.type == NL80211_IFTYPE_STATION) && sdata->u.mgd.associated) - ieee80211_offchannel_ps_enable(sdata, true); + ieee80211_offchannel_ps_enable(sdata); } } mutex_unlock(&local->iflist_mtx); @@ -181,34 +180,58 @@ void ieee80211_offchannel_return(struct ieee80211_local *local, mutex_unlock(&local->iflist_mtx); } +void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc) +{ + if (roc->notified) + return; + + if (roc->mgmt_tx_cookie) { + if (!WARN_ON(!roc->frame)) { + ieee80211_tx_skb(roc->sdata, roc->frame); + roc->frame = NULL; + } + } else { + cfg80211_ready_on_channel(&roc->sdata->wdev, (unsigned long)roc, + roc->chan, roc->chan_type, + roc->req_duration, GFP_KERNEL); + } + + roc->notified = true; +} + static void ieee80211_hw_roc_start(struct work_struct *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, hw_roc_start); - struct ieee80211_sub_if_data *sdata; + struct ieee80211_roc_work *roc, *dep, *tmp; mutex_lock(&local->mtx); - if (!local->hw_roc_channel) { - mutex_unlock(&local->mtx); - return; - } + if (list_empty(&local->roc_list)) + goto out_unlock; - if (local->hw_roc_skb) { - sdata = IEEE80211_DEV_TO_SUB_IF(local->hw_roc_dev); - ieee80211_tx_skb(sdata, local->hw_roc_skb); - local->hw_roc_skb = NULL; - } else { - cfg80211_ready_on_channel(local->hw_roc_dev, - local->hw_roc_cookie, - local->hw_roc_channel, - local->hw_roc_channel_type, - local->hw_roc_duration, - GFP_KERNEL); - } + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); + + if (!roc->started) + goto out_unlock; - ieee80211_recalc_idle(local); + roc->hw_begun = true; + roc->hw_start_time = local->hw_roc_start_time; + ieee80211_handle_roc_started(roc); + list_for_each_entry_safe(dep, tmp, &roc->dependents, list) { + ieee80211_handle_roc_started(dep); + + if (dep->duration > roc->duration) { + u32 dur = dep->duration; + dep->duration = dur - roc->duration; + roc->duration = dur; + list_del(&dep->list); + list_add(&dep->list, &roc->list); + } + } + out_unlock: mutex_unlock(&local->mtx); } @@ -216,52 +239,181 @@ void ieee80211_ready_on_channel(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); + local->hw_roc_start_time = jiffies; + trace_api_ready_on_channel(local); ieee80211_queue_work(hw, &local->hw_roc_start); } EXPORT_SYMBOL_GPL(ieee80211_ready_on_channel); -static void ieee80211_hw_roc_done(struct work_struct *work) +void ieee80211_start_next_roc(struct ieee80211_local *local) { - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, hw_roc_done); + struct ieee80211_roc_work *roc; - mutex_lock(&local->mtx); + lockdep_assert_held(&local->mtx); - if (!local->hw_roc_channel) { - mutex_unlock(&local->mtx); + if (list_empty(&local->roc_list)) { + ieee80211_run_deferred_scan(local); return; } - /* was never transmitted */ - if (local->hw_roc_skb) { - u64 cookie; + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); - cookie = local->hw_roc_cookie ^ 2; + if (WARN_ON_ONCE(roc->started)) + return; + + if (local->ops->remain_on_channel) { + int ret, duration = roc->duration; + + /* XXX: duplicated, see ieee80211_start_roc_work() */ + if (!duration) + duration = 10; + + ret = drv_remain_on_channel(local, roc->chan, + roc->chan_type, + duration); + + roc->started = true; + + if (ret) { + wiphy_warn(local->hw.wiphy, + "failed to start next HW ROC (%d)\n", ret); + /* + * queue the work struct again to avoid recursion + * when multiple failures occur + */ + ieee80211_remain_on_channel_expired(&local->hw); + } + } else { + /* delay it a bit */ + ieee80211_queue_delayed_work(&local->hw, &roc->work, + round_jiffies_relative(HZ/2)); + } +} - cfg80211_mgmt_tx_status(local->hw_roc_dev, cookie, - local->hw_roc_skb->data, - local->hw_roc_skb->len, false, - GFP_KERNEL); +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc) +{ + struct ieee80211_roc_work *dep, *tmp; - kfree_skb(local->hw_roc_skb); - local->hw_roc_skb = NULL; - local->hw_roc_skb_for_status = NULL; + /* was never transmitted */ + if (roc->frame) { + cfg80211_mgmt_tx_status(&roc->sdata->wdev, + (unsigned long)roc->frame, + roc->frame->data, roc->frame->len, + false, GFP_KERNEL); + kfree_skb(roc->frame); } - if (!local->hw_roc_for_tx) - cfg80211_remain_on_channel_expired(local->hw_roc_dev, - local->hw_roc_cookie, - local->hw_roc_channel, - local->hw_roc_channel_type, + if (!roc->mgmt_tx_cookie) + cfg80211_remain_on_channel_expired(&roc->sdata->wdev, + (unsigned long)roc, + roc->chan, roc->chan_type, GFP_KERNEL); - local->hw_roc_channel = NULL; - local->hw_roc_cookie = 0; + list_for_each_entry_safe(dep, tmp, &roc->dependents, list) + ieee80211_roc_notify_destroy(dep); + + kfree(roc); +} + +void ieee80211_sw_roc_work(struct work_struct *work) +{ + struct ieee80211_roc_work *roc = + container_of(work, struct ieee80211_roc_work, work.work); + struct ieee80211_sub_if_data *sdata = roc->sdata; + struct ieee80211_local *local = sdata->local; + bool started; + + mutex_lock(&local->mtx); + + if (roc->abort) + goto finish; + + if (WARN_ON(list_empty(&local->roc_list))) + goto out_unlock; + + if (WARN_ON(roc != list_first_entry(&local->roc_list, + struct ieee80211_roc_work, + list))) + goto out_unlock; - ieee80211_recalc_idle(local); + if (!roc->started) { + struct ieee80211_roc_work *dep; + /* start this ROC */ + + /* switch channel etc */ + 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 */ + ieee80211_handle_roc_started(roc); + list_for_each_entry(dep, &roc->dependents, list) + ieee80211_handle_roc_started(dep); + + /* if it was pure TX, just finish right away */ + if (!roc->duration) + goto finish; + + roc->started = true; + ieee80211_queue_delayed_work(&local->hw, &roc->work, + msecs_to_jiffies(roc->duration)); + } else { + /* finish this ROC */ + finish: + list_del(&roc->list); + started = roc->started; + ieee80211_roc_notify_destroy(roc); + + if (started) { + drv_flush(local, false); + + local->tmp_channel = NULL; + ieee80211_hw_config(local, 0); + + ieee80211_offchannel_return(local, true); + } + + ieee80211_recalc_idle(local); + + if (started) + ieee80211_start_next_roc(local); + } + + out_unlock: + mutex_unlock(&local->mtx); +} + +static void ieee80211_hw_roc_done(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, hw_roc_done); + struct ieee80211_roc_work *roc; + + mutex_lock(&local->mtx); + + if (list_empty(&local->roc_list)) + goto out_unlock; + + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); + + if (!roc->started) + goto out_unlock; + + list_del(&roc->list); + + ieee80211_roc_notify_destroy(roc); + + /* if there's another roc, start it now */ + ieee80211_start_next_roc(local); + + out_unlock: mutex_unlock(&local->mtx); } @@ -275,8 +427,47 @@ void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw) } EXPORT_SYMBOL_GPL(ieee80211_remain_on_channel_expired); -void ieee80211_hw_roc_setup(struct ieee80211_local *local) +void ieee80211_roc_setup(struct ieee80211_local *local) { INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start); INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done); + INIT_LIST_HEAD(&local->roc_list); +} + +void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_roc_work *roc, *tmp; + LIST_HEAD(tmp_list); + + mutex_lock(&local->mtx); + list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { + if (roc->sdata != sdata) + continue; + + if (roc->started && local->ops->remain_on_channel) { + /* can race, so ignore return value */ + drv_cancel_remain_on_channel(local); + } + + 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) { + if (local->ops->remain_on_channel) { + list_del(&roc->list); + ieee80211_roc_notify_destroy(roc); + } else { + ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); + + /* work will clean up etc */ + flush_delayed_work(&roc->work); + } + } + + WARN_ON_ONCE(!list_empty(&tmp_list)); } diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index af1c4e2..5c572e7 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -77,6 +77,17 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) int err = drv_suspend(local, wowlan); if (err < 0) { local->quiescing = false; + local->wowlan = false; + if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { + mutex_lock(&local->sta_mtx); + list_for_each_entry(sta, + &local->sta_list, list) { + clear_sta_flag(sta, WLAN_STA_BLOCK_BA); + } + mutex_unlock(&local->sta_mtx); + } + ieee80211_wake_queues_by_reason(hw, + IEEE80211_QUEUE_STOP_REASON_SUSPEND); return err; } else if (err > 0) { WARN_ON(err != 1); diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index f9e51ef..fb1d4aa 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -626,8 +626,12 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, #ifdef CONFIG_MAC80211_DEBUGFS /* use fixed index if set */ - if (mp->fixed_rate_idx != -1) - sample_idx = mp->fixed_rate_idx; + if (mp->fixed_rate_idx != -1) { + mi->max_tp_rate = mp->fixed_rate_idx; + mi->max_tp_rate2 = mp->fixed_rate_idx; + mi->max_prob_rate = mp->fixed_rate_idx; + sample_idx = -1; + } #endif if (sample_idx >= 0) { diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 965e6ec..0cb4ede 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -94,7 +94,7 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local, return len; } -/* +/** * ieee80211_add_rx_radiotap_header - add radiotap header * * add a radiotap header containing all the fields which the hardware provided. @@ -413,29 +413,6 @@ static void ieee80211_verify_alignment(struct ieee80211_rx_data *rx) /* rx handlers */ -static ieee80211_rx_result debug_noinline -ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx) -{ - struct ieee80211_local *local = rx->local; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); - struct sk_buff *skb = rx->skb; - - if (likely(!(status->rx_flags & IEEE80211_RX_IN_SCAN) && - !local->sched_scanning)) - return RX_CONTINUE; - - if (test_bit(SCAN_HW_SCANNING, &local->scanning) || - test_bit(SCAN_SW_SCANNING, &local->scanning) || - test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || - local->sched_scanning) - return ieee80211_scan_rx(rx->sdata, skb); - - /* scanning finished during invoking of handlers */ - I802_DEBUG_INC(local->rx_handlers_drop_passive_scan); - return RX_DROP_UNUSABLE; -} - - static int ieee80211_is_unicast_robust_mgmt_frame(struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; @@ -554,11 +531,11 @@ static inline u16 seq_sub(u16 sq1, u16 sq2) } -static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw, +static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx, int index) { - struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_local *local = sdata->local; struct sk_buff *skb = tid_agg_rx->reorder_buf[index]; struct ieee80211_rx_status *status; @@ -578,7 +555,7 @@ no_frame: tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num); } -static void ieee80211_release_reorder_frames(struct ieee80211_hw *hw, +static void ieee80211_release_reorder_frames(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx, u16 head_seq_num) { @@ -589,7 +566,7 @@ static void ieee80211_release_reorder_frames(struct ieee80211_hw *hw, while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) { index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) % tid_agg_rx->buf_size; - ieee80211_release_reorder_frame(hw, tid_agg_rx, index); + ieee80211_release_reorder_frame(sdata, tid_agg_rx, index); } } @@ -604,7 +581,7 @@ static void ieee80211_release_reorder_frames(struct ieee80211_hw *hw, */ #define HT_RX_REORDER_BUF_TIMEOUT (HZ / 10) -static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, +static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx) { int index, j; @@ -632,12 +609,9 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, HT_RX_REORDER_BUF_TIMEOUT)) goto set_release_timer; -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - wiphy_debug(hw->wiphy, - "release an RX reorder frame due to timeout on earlier frames\n"); -#endif - ieee80211_release_reorder_frame(hw, tid_agg_rx, j); + ht_dbg_ratelimited(sdata, + "release an RX reorder frame due to timeout on earlier frames\n"); + ieee80211_release_reorder_frame(sdata, tid_agg_rx, j); /* * Increment the head seq# also for the skipped slots. @@ -647,7 +621,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, skipped = 0; } } else while (tid_agg_rx->reorder_buf[index]) { - ieee80211_release_reorder_frame(hw, tid_agg_rx, index); + ieee80211_release_reorder_frame(sdata, tid_agg_rx, index); index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) % tid_agg_rx->buf_size; } @@ -677,7 +651,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, * rcu_read_lock protection. It returns false if the frame * can be processed immediately, true if it was consumed. */ -static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, +static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx, struct sk_buff *skb) { @@ -706,7 +680,8 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, if (!seq_less(mpdu_seq_num, head_seq_num + buf_size)) { head_seq_num = seq_inc(seq_sub(mpdu_seq_num, buf_size)); /* release stored frames up to new head to stack */ - ieee80211_release_reorder_frames(hw, tid_agg_rx, head_seq_num); + ieee80211_release_reorder_frames(sdata, tid_agg_rx, + head_seq_num); } /* Now the new frame is always in the range of the reordering buffer */ @@ -736,7 +711,7 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, tid_agg_rx->reorder_buf[index] = skb; tid_agg_rx->reorder_time[index] = jiffies; tid_agg_rx->stored_mpdu_num++; - ieee80211_sta_reorder_release(hw, tid_agg_rx); + ieee80211_sta_reorder_release(sdata, tid_agg_rx); out: spin_unlock(&tid_agg_rx->reorder_lock); @@ -751,7 +726,6 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx) { struct sk_buff *skb = rx->skb; struct ieee80211_local *local = rx->local; - struct ieee80211_hw *hw = &local->hw; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct sta_info *sta = rx->sta; @@ -813,7 +787,7 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx) * sure that we cannot get to it any more before doing * anything with it. */ - if (ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb)) + if (ieee80211_sta_manage_reorder_buf(rx->sdata, tid_agg_rx, skb)) return; dont_reorder: @@ -1136,24 +1110,18 @@ static void ap_sta_ps_start(struct sta_info *sta) 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); -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n", - sdata->name, sta->sta.addr, sta->sta.aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ + ps_dbg(sdata, "STA %pM aid %d enters power save mode\n", + sta->sta.addr, sta->sta.aid); } static void ap_sta_ps_end(struct sta_info *sta) { -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n", - sta->sdata->name, sta->sta.addr, sta->sta.aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ + ps_dbg(sta->sdata, "STA %pM aid %d exits power save mode\n", + sta->sta.addr, sta->sta.aid); if (test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d driver-ps-blocked\n", - sta->sdata->name, sta->sta.addr, sta->sta.aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ + ps_dbg(sta->sdata, "STA %pM aid %d driver-ps-blocked\n", + sta->sta.addr, sta->sta.aid); return; } @@ -1383,19 +1351,8 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX) sdata->fragment_next = 0; - if (!skb_queue_empty(&entry->skb_list)) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) entry->skb_list.next->data; - printk(KERN_DEBUG "%s: RX reassembly removed oldest " - "fragment entry (idx=%d age=%lu seq=%d last_frag=%d " - "addr1=%pM addr2=%pM\n", - sdata->name, idx, - jiffies - entry->first_frag_time, entry->seq, - entry->last_frag, hdr->addr1, hdr->addr2); -#endif + if (!skb_queue_empty(&entry->skb_list)) __skb_queue_purge(&entry->skb_list); - } __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */ *skb = NULL; @@ -1753,7 +1710,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) */ xmit_skb = skb_copy(skb, GFP_ATOMIC); if (!xmit_skb) - net_dbg_ratelimited("%s: failed to clone multicast frame\n", + net_info_ratelimited("%s: failed to clone multicast frame\n", dev->name); } else { dsta = sta_info_get(sdata, skb->data); @@ -1937,7 +1894,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) ether_addr_equal(sdata->vif.addr, hdr->addr3)) return RX_CONTINUE; - q = ieee80211_select_queue_80211(local, skb, hdr); + q = ieee80211_select_queue_80211(sdata, skb, hdr); if (ieee80211_queue_stopped(&local->hw, q)) { IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion); return RX_DROP_MONITOR; @@ -1957,7 +1914,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) fwd_skb = skb_copy(skb, GFP_ATOMIC); if (!fwd_skb) { - net_dbg_ratelimited("%s: failed to clone mesh frame\n", + net_info_ratelimited("%s: failed to clone mesh frame\n", sdata->name); goto out; } @@ -2060,8 +2017,6 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) static ieee80211_rx_result debug_noinline ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx) { - struct ieee80211_local *local = rx->local; - struct ieee80211_hw *hw = &local->hw; struct sk_buff *skb = rx->skb; struct ieee80211_bar *bar = (struct ieee80211_bar *)skb->data; struct tid_ampdu_rx *tid_agg_rx; @@ -2098,7 +2053,8 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx) spin_lock(&tid_agg_rx->reorder_lock); /* release stored frames up to start of BAR */ - ieee80211_release_reorder_frames(hw, tid_agg_rx, start_seq_num); + ieee80211_release_reorder_frames(rx->sdata, tid_agg_rx, + start_seq_num); spin_unlock(&tid_agg_rx->reorder_lock); kfree_skb(skb); @@ -2425,7 +2381,7 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx) if (rx->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) sig = status->signal; - if (cfg80211_rx_mgmt(rx->sdata->dev, status->freq, sig, + if (cfg80211_rx_mgmt(&rx->sdata->wdev, status->freq, sig, rx->skb->data, rx->skb->len, GFP_ATOMIC)) { if (rx->sta) @@ -2716,7 +2672,6 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx) goto rxh_next; \ } while (0); - CALL_RXH(ieee80211_rx_h_passive_scan) CALL_RXH(ieee80211_rx_h_check) ieee80211_rx_reorder_ampdu(rx); @@ -2752,7 +2707,7 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid) return; spin_lock(&tid_agg_rx->reorder_lock); - ieee80211_sta_reorder_release(&sta->local->hw, tid_agg_rx); + ieee80211_sta_reorder_release(sta->sdata, tid_agg_rx); spin_unlock(&tid_agg_rx->reorder_lock); ieee80211_rx_handlers(&rx); @@ -2786,11 +2741,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx, return 0; if (ieee80211_is_beacon(hdr->frame_control)) { return 1; - } - else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) { - if (!(status->rx_flags & IEEE80211_RX_IN_SCAN)) - return 0; - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; + } else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) { + return 0; } else if (!multicast && !ether_addr_equal(sdata->vif.addr, hdr->addr1)) { if (!(sdata->dev->flags & IFF_PROMISC)) @@ -2828,11 +2780,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx, * and location updates. Note that mac80211 * itself never looks at these frames. */ - if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) && - ieee80211_is_public_action(hdr, skb->len)) + if (ieee80211_is_public_action(hdr, skb->len)) return 1; - if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) && - !ieee80211_is_beacon(hdr->frame_control)) + if (!ieee80211_is_beacon(hdr->frame_control)) return 0; status->rx_flags &= ~IEEE80211_RX_RA_MATCH; } @@ -2898,7 +2848,6 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, struct sk_buff *skb) { - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; struct ieee80211_hdr *hdr; @@ -2916,11 +2865,6 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc)) local->dot11ReceivedFragmentCount++; - if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning) || - test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || - test_bit(SCAN_SW_SCANNING, &local->scanning))) - status->rx_flags |= IEEE80211_RX_IN_SCAN; - if (ieee80211_is_mgmt(fc)) err = skb_linearize(skb); else @@ -2935,6 +2879,10 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, ieee80211_parse_qos(&rx); ieee80211_verify_alignment(&rx); + if (unlikely(ieee80211_is_probe_resp(hdr->frame_control) || + ieee80211_is_beacon(hdr->frame_control))) + ieee80211_scan_rx(local, skb); + if (ieee80211_is_data(fc)) { prev_sta = NULL; @@ -3032,6 +2980,10 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) if (unlikely(local->quiescing || local->suspended)) goto drop; + /* We might be during a HW reconfig, prevent Rx for the same reason */ + if (unlikely(local->in_reconfig)) + goto drop; + /* * The same happens when we're not even started, * but that's worth a warning. diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 7644181..df36280 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -83,13 +83,14 @@ ieee80211_bss_info_update(struct ieee80211_local *local, cbss = cfg80211_inform_bss_frame(local->hw.wiphy, channel, mgmt, len, signal, GFP_ATOMIC); - if (!cbss) return NULL; cbss->free_priv = ieee80211_rx_bss_free; bss = (void *)cbss->priv; + bss->device_ts = rx_status->device_timestamp; + if (elems->parse_error) { if (beacon) bss->corrupt_data |= IEEE80211_BSS_CORRUPT_BEACON; @@ -114,8 +115,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local, if (elems->tim && (!elems->parse_error || !(bss->valid_data & IEEE80211_BSS_VALID_DTIM))) { - struct ieee80211_tim_ie *tim_ie = - (struct ieee80211_tim_ie *)elems->tim; + 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; @@ -165,52 +165,47 @@ ieee80211_bss_info_update(struct ieee80211_local *local, return bss; } -ieee80211_rx_result -ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) +void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) { struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); - struct ieee80211_mgmt *mgmt; + struct ieee80211_sub_if_data *sdata1, *sdata2; + struct ieee80211_mgmt *mgmt = (void *)skb->data; struct ieee80211_bss *bss; u8 *elements; struct ieee80211_channel *channel; size_t baselen; int freq; - __le16 fc; - bool presp, beacon = false; + bool beacon; struct ieee802_11_elems elems; - if (skb->len < 2) - return RX_DROP_UNUSABLE; - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = mgmt->frame_control; + if (skb->len < 24 || + (!ieee80211_is_probe_resp(mgmt->frame_control) && + !ieee80211_is_beacon(mgmt->frame_control))) + return; - if (ieee80211_is_ctl(fc)) - return RX_CONTINUE; + sdata1 = rcu_dereference(local->scan_sdata); + sdata2 = rcu_dereference(local->sched_scan_sdata); - if (skb->len < 24) - return RX_CONTINUE; + if (likely(!sdata1 && !sdata2)) + return; - presp = ieee80211_is_probe_resp(fc); - if (presp) { + if (ieee80211_is_probe_resp(mgmt->frame_control)) { /* ignore ProbeResp to foreign address */ - if (!ether_addr_equal(mgmt->da, sdata->vif.addr)) - return RX_DROP_MONITOR; + if ((!sdata1 || !ether_addr_equal(mgmt->da, sdata1->vif.addr)) && + (!sdata2 || !ether_addr_equal(mgmt->da, sdata2->vif.addr))) + return; - presp = true; elements = mgmt->u.probe_resp.variable; baselen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); + beacon = false; } else { - beacon = ieee80211_is_beacon(fc); baselen = offsetof(struct ieee80211_mgmt, u.beacon.variable); elements = mgmt->u.beacon.variable; + beacon = true; } - if (!presp && !beacon) - return RX_CONTINUE; - if (baselen > skb->len) - return RX_DROP_MONITOR; + return; ieee802_11_parse_elems(elements, skb->len - baselen, &elems); @@ -220,22 +215,16 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) else freq = rx_status->freq; - channel = ieee80211_get_channel(sdata->local->hw.wiphy, freq); + channel = ieee80211_get_channel(local->hw.wiphy, freq); if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) - return RX_DROP_MONITOR; + return; - bss = ieee80211_bss_info_update(sdata->local, rx_status, + bss = ieee80211_bss_info_update(local, rx_status, mgmt, skb->len, &elems, channel, beacon); if (bss) - ieee80211_rx_bss_put(sdata->local, bss); - - if (channel == sdata->local->oper_channel) - return RX_CONTINUE; - - dev_kfree_skb(skb); - return RX_QUEUED; + ieee80211_rx_bss_put(local, bss); } /* return false if no more work */ @@ -293,7 +282,13 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted, return; if (was_hw_scan && !aborted && ieee80211_prep_hw_scan(local)) { - int rc = drv_hw_scan(local, local->scan_sdata, local->hw_scan_req); + int rc; + + rc = drv_hw_scan(local, + rcu_dereference_protected(local->scan_sdata, + lockdep_is_held(&local->mtx)), + local->hw_scan_req); + if (rc == 0) return; } @@ -323,7 +318,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted, ieee80211_mlme_notify_scan_completed(local); ieee80211_ibss_notify_scan_completed(local); ieee80211_mesh_notify_scan_completed(local); - ieee80211_queue_work(&local->hw, &local->work_work); + ieee80211_start_next_roc(local); } void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) @@ -376,7 +371,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) static bool ieee80211_can_scan(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { - if (!list_empty(&local->work_list)) + if (!list_empty(&local->roc_list)) return false; if (sdata->vif.type == NL80211_IFTYPE_STATION && @@ -394,7 +389,10 @@ void ieee80211_run_deferred_scan(struct ieee80211_local *local) if (!local->scan_req || local->scanning) return; - if (!ieee80211_can_scan(local, local->scan_sdata)) + if (!ieee80211_can_scan(local, + rcu_dereference_protected( + local->scan_sdata, + lockdep_is_held(&local->mtx)))) return; ieee80211_queue_delayed_work(&local->hw, &local->scan_work, @@ -405,9 +403,12 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local, unsigned long *next_delay) { int i; - struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_sub_if_data *sdata; enum ieee80211_band band = local->hw.conf.channel->band; + sdata = rcu_dereference_protected(local->scan_sdata, + lockdep_is_held(&local->mtx));; + for (i = 0; i < local->scan_req->n_ssids; i++) ieee80211_send_probe_req( sdata, NULL, @@ -439,7 +440,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (!ieee80211_can_scan(local, sdata)) { /* wait for the work to finish/time out */ local->scan_req = req; - local->scan_sdata = sdata; + rcu_assign_pointer(local->scan_sdata, sdata); return 0; } @@ -473,7 +474,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, } local->scan_req = req; - local->scan_sdata = sdata; + rcu_assign_pointer(local->scan_sdata, sdata); if (local->ops->hw_scan) { __set_bit(SCAN_HW_SCANNING, &local->scanning); @@ -533,7 +534,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, ieee80211_recalc_idle(local); local->scan_req = NULL; - local->scan_sdata = NULL; + rcu_assign_pointer(local->scan_sdata, NULL); } return rc; @@ -720,7 +721,8 @@ void ieee80211_scan_work(struct work_struct *work) mutex_lock(&local->mtx); - sdata = local->scan_sdata; + sdata = rcu_dereference_protected(local->scan_sdata, + lockdep_is_held(&local->mtx)); /* When scanning on-channel, the first-callback means completed. */ if (test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) { @@ -741,7 +743,7 @@ void ieee80211_scan_work(struct work_struct *work) int rc; local->scan_req = NULL; - local->scan_sdata = NULL; + rcu_assign_pointer(local->scan_sdata, NULL); rc = __ieee80211_start_scan(sdata, req); if (rc) { @@ -893,7 +895,9 @@ void ieee80211_scan_cancel(struct ieee80211_local *local) if (test_bit(SCAN_HW_SCANNING, &local->scanning)) { if (local->ops->cancel_hw_scan) - drv_cancel_hw_scan(local, local->scan_sdata); + drv_cancel_hw_scan(local, + rcu_dereference_protected(local->scan_sdata, + lockdep_is_held(&local->mtx))); goto out; } @@ -915,9 +919,9 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; int ret, i; - mutex_lock(&sdata->local->mtx); + mutex_lock(&local->mtx); - if (local->sched_scanning) { + if (rcu_access_pointer(local->sched_scan_sdata)) { ret = -EBUSY; goto out; } @@ -928,6 +932,9 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, } for (i = 0; i < IEEE80211_NUM_BANDS; i++) { + if (!local->hw.wiphy->bands[i]) + continue; + local->sched_scan_ies.ie[i] = kzalloc(2 + IEEE80211_MAX_SSID_LEN + local->scan_ies_len + @@ -948,7 +955,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, ret = drv_sched_scan_start(local, sdata, req, &local->sched_scan_ies); if (ret == 0) { - local->sched_scanning = true; + rcu_assign_pointer(local->sched_scan_sdata, sdata); goto out; } @@ -956,7 +963,7 @@ out_free: while (i > 0) kfree(local->sched_scan_ies.ie[--i]); out: - mutex_unlock(&sdata->local->mtx); + mutex_unlock(&local->mtx); return ret; } @@ -965,22 +972,22 @@ int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; int ret = 0, i; - mutex_lock(&sdata->local->mtx); + mutex_lock(&local->mtx); if (!local->ops->sched_scan_stop) { ret = -ENOTSUPP; goto out; } - if (local->sched_scanning) { + if (rcu_access_pointer(local->sched_scan_sdata)) { for (i = 0; i < IEEE80211_NUM_BANDS; i++) kfree(local->sched_scan_ies.ie[i]); drv_sched_scan_stop(local, sdata); - local->sched_scanning = false; + rcu_assign_pointer(local->sched_scan_sdata, NULL); } out: - mutex_unlock(&sdata->local->mtx); + mutex_unlock(&local->mtx); return ret; } @@ -1004,7 +1011,7 @@ void ieee80211_sched_scan_stopped_work(struct work_struct *work) mutex_lock(&local->mtx); - if (!local->sched_scanning) { + if (!rcu_access_pointer(local->sched_scan_sdata)) { mutex_unlock(&local->mtx); return; } @@ -1012,7 +1019,7 @@ void ieee80211_sched_scan_stopped_work(struct work_struct *work) for (i = 0; i < IEEE80211_NUM_BANDS; i++) kfree(local->sched_scan_ies.ie[i]); - local->sched_scanning = false; + rcu_assign_pointer(local->sched_scan_sdata, NULL); mutex_unlock(&local->mtx); diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index de455f8..06fa75c 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -169,9 +169,7 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta) if (sta->rate_ctrl) rate_control_free_sta(sta); -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "Destroyed STA %pM\n", sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr); kfree(sta); } @@ -278,9 +276,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, for (i = 0; i < NUM_RX_DATA_QUEUES; i++) sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX); -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "Allocated STA %pM\n", sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr); #ifdef CONFIG_MAC80211_MESH sta->plink_state = NL80211_PLINK_LISTEN; @@ -333,9 +329,9 @@ static int sta_info_insert_drv_state(struct ieee80211_local *local, } if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { - printk(KERN_DEBUG - "%s: failed to move IBSS STA %pM to state %d (%d) - keeping it anyway.\n", - sdata->name, sta->sta.addr, state + 1, err); + sdata_info(sdata, + "failed to move IBSS STA %pM to state %d (%d) - keeping it anyway\n", + sta->sta.addr, state + 1, err); err = 0; } @@ -390,9 +386,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) sinfo.generation = local->sta_generation; cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL); -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "Inserted STA %pM\n", sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + sta_dbg(sdata, "Inserted STA %pM\n", sta->sta.addr); /* move reference to rcu-protected */ rcu_read_lock(); @@ -618,10 +612,8 @@ static bool sta_info_cleanup_expire_buffered_ac(struct ieee80211_local *local, break; local->total_ps_buffered--; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "Buffered frame expired (STA %pM)\n", + ps_dbg(sta->sdata, "Buffered frame expired (STA %pM)\n", sta->sta.addr); -#endif dev_kfree_skb(skb); } @@ -747,9 +739,8 @@ int __must_check __sta_info_destroy(struct sta_info *sta) mesh_accept_plinks_update(sdata); #endif -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - wiphy_debug(local->hw.wiphy, "Removed STA %pM\n", sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + sta_dbg(sdata, "Removed STA %pM\n", sta->sta.addr); + cancel_work_sync(&sta->drv_unblock_wk); cfg80211_del_sta(sdata->dev, sta->sta.addr, GFP_KERNEL); @@ -889,10 +880,8 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, continue; if (time_after(jiffies, sta->last_rx + exp_time)) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: expiring inactive STA %pM\n", - sdata->name, sta->sta.addr); -#endif + ibss_dbg(sdata, "expiring inactive STA %pM\n", + sta->sta.addr); WARN_ON(__sta_info_destroy(sta)); } } @@ -990,11 +979,9 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) sta_info_recalc_tim(sta); -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames " - "since STA not sleeping anymore\n", sdata->name, + ps_dbg(sdata, + "STA %pM aid %d sending %d filtered/%d PS frames since STA not sleeping anymore\n", sta->sta.addr, sta->sta.aid, filtered, buffered); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ } static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, @@ -1384,10 +1371,8 @@ int sta_info_move_state(struct sta_info *sta, return -EINVAL; } -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: moving STA %pM to state %d\n", - sta->sdata->name, sta->sta.addr, new_state); -#endif + sta_dbg(sta->sdata, "moving STA %pM to state %d\n", + sta->sta.addr, new_state); /* * notify the driver before the actual changes so it can diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 28cfa98..8cd7291 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -155,13 +155,10 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, return; } -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) - wiphy_debug(local->hw.wiphy, - "dropped TX filtered frame, queue_len=%d PS=%d @%lu\n", - skb_queue_len(&sta->tx_filtered[ac]), - !!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies); -#endif + ps_dbg_ratelimited(sta->sdata, + "dropped TX filtered frame, queue_len=%d PS=%d @%lu\n", + skb_queue_len(&sta->tx_filtered[ac]), + !!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies); dev_kfree_skb(skb); } @@ -520,36 +517,21 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { u64 cookie = (unsigned long)skb; + acked = info->flags & IEEE80211_TX_STAT_ACK; - if (ieee80211_is_nullfunc(hdr->frame_control) || - ieee80211_is_qos_nullfunc(hdr->frame_control)) { - acked = info->flags & IEEE80211_TX_STAT_ACK; + /* + * TODO: When we have non-netdev frame TX, + * we cannot use skb->dev->ieee80211_ptr + */ + if (ieee80211_is_nullfunc(hdr->frame_control) || + ieee80211_is_qos_nullfunc(hdr->frame_control)) cfg80211_probe_status(skb->dev, hdr->addr1, cookie, acked, GFP_ATOMIC); - } else { - struct ieee80211_work *wk; - - rcu_read_lock(); - list_for_each_entry_rcu(wk, &local->work_list, list) { - if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) - continue; - if (wk->offchan_tx.frame != skb) - continue; - wk->offchan_tx.status = true; - break; - } - rcu_read_unlock(); - if (local->hw_roc_skb_for_status == skb) { - cookie = local->hw_roc_cookie ^ 2; - local->hw_roc_skb_for_status = NULL; - } - + else cfg80211_mgmt_tx_status( - skb->dev, cookie, skb->data, skb->len, - !!(info->flags & IEEE80211_TX_STAT_ACK), - GFP_ATOMIC); - } + skb->dev->ieee80211_ptr, cookie, skb->data, + skb->len, acked, GFP_ATOMIC); } if (unlikely(info->ack_frame_id)) { @@ -589,7 +571,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) /* send frame to monitor interfaces now */ rtap_len = ieee80211_tx_radiotap_len(info); if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) { - printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); + pr_err("ieee80211_tx_status: headroom too small\n"); dev_kfree_skb(skb); return; } diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c index 51077a9..57e14d5 100644 --- a/net/mac80211/tkip.c +++ b/net/mac80211/tkip.c @@ -260,17 +260,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, keyid = pos[3]; iv32 = get_unaligned_le32(pos + 4); pos += 8; -#ifdef CONFIG_MAC80211_TKIP_DEBUG - { - int i; - printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len); - for (i = 0; i < payload_len; i++) - printk(" %02x", payload[i]); - printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n", - iv16, iv32); - } -#endif if (!(keyid & (1 << 5))) return TKIP_DECRYPT_NO_EXT_IV; @@ -281,16 +270,8 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT && (iv32 < key->u.tkip.rx[queue].iv32 || (iv32 == key->u.tkip.rx[queue].iv32 && - iv16 <= key->u.tkip.rx[queue].iv16))) { -#ifdef CONFIG_MAC80211_TKIP_DEBUG - printk(KERN_DEBUG "TKIP replay detected for RX frame from " - "%pM (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n", - ta, - iv32, iv16, key->u.tkip.rx[queue].iv32, - key->u.tkip.rx[queue].iv16); -#endif + iv16 <= key->u.tkip.rx[queue].iv16))) return TKIP_DECRYPT_REPLAY; - } if (only_iv) { res = TKIP_DECRYPT_OK; @@ -302,22 +283,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, key->u.tkip.rx[queue].iv32 != iv32) { /* IV16 wrapped around - perform TKIP phase 1 */ tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32); -#ifdef CONFIG_MAC80211_TKIP_DEBUG - { - int i; - u8 key_offset = NL80211_TKIP_DATA_OFFSET_ENCR_KEY; - printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%pM" - " TK=", ta); - for (i = 0; i < 16; i++) - printk("%02x ", - key->conf.key[key_offset + i]); - printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: P1K="); - for (i = 0; i < 5; i++) - printk("%04x ", key->u.tkip.rx[queue].p1k[i]); - printk("\n"); - } -#endif } if (key->local->ops->update_tkip_key && key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && @@ -333,15 +298,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, } tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key); -#ifdef CONFIG_MAC80211_TKIP_DEBUG - { - int i; - printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key="); - for (i = 0; i < 16; i++) - printk("%02x ", rc4key[i]); - printk("\n"); - } -#endif res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12); done: diff --git a/net/mac80211/trace.c b/net/mac80211/trace.c new file mode 100644 index 0000000..386e45d8 --- /dev/null +++ b/net/mac80211/trace.c @@ -0,0 +1,75 @@ +/* bug in tracepoint.h, it should include this */ +#include <linux/module.h> + +/* sparse isn't too happy with all macros... */ +#ifndef __CHECKER__ +#include <net/cfg80211.h> +#include "driver-ops.h" +#include "debug.h" +#define CREATE_TRACE_POINTS +#include "trace.h" + +#ifdef CONFIG_MAC80211_MESSAGE_TRACING +void __sdata_info(const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + + pr_info("%pV", &vaf); + trace_mac80211_info(&vaf); + va_end(args); +} + +void __sdata_dbg(bool print, const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + + if (print) + pr_debug("%pV", &vaf); + trace_mac80211_dbg(&vaf); + va_end(args); +} + +void __sdata_err(const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + + pr_err("%pV", &vaf); + trace_mac80211_err(&vaf); + va_end(args); +} + +void __wiphy_dbg(struct wiphy *wiphy, bool print, const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + + if (print) + wiphy_dbg(wiphy, "%pV", &vaf); + trace_mac80211_dbg(&vaf); + va_end(args); +} +#endif +#endif diff --git a/net/mac80211/driver-trace.h b/net/mac80211/trace.h index 6de00b2..c6d33b5 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/trace.h @@ -306,7 +306,8 @@ TRACE_EVENT(drv_bss_info_changed, __field(u8, dtimper) __field(u16, bcnint) __field(u16, assoc_cap) - __field(u64, timestamp) + __field(u64, sync_tsf) + __field(u32, sync_device_ts) __field(u32, basic_rates) __field(u32, changed) __field(bool, enable_beacon) @@ -325,7 +326,8 @@ TRACE_EVENT(drv_bss_info_changed, __entry->dtimper = info->dtim_period; __entry->bcnint = info->beacon_int; __entry->assoc_cap = info->assoc_capability; - __entry->timestamp = info->last_tsf; + __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; __entry->ht_operation_mode = info->ht_operation_mode; @@ -1218,6 +1220,39 @@ DEFINE_EVENT(release_evt, drv_allow_buffered_frames, TP_ARGS(local, sta, tids, num_frames, reason, more_data) ); +TRACE_EVENT(drv_get_rssi, + TP_PROTO(struct ieee80211_local *local, struct ieee80211_sta *sta, + s8 rssi, int ret), + + TP_ARGS(local, sta, rssi, ret), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + __field(s8, rssi) + __field(int, ret) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + __entry->rssi = rssi; + __entry->ret = ret; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT " rssi:%d ret:%d", + LOCAL_PR_ARG, STA_PR_ARG, __entry->rssi, __entry->ret + ) +); + +DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + + TP_ARGS(local, sdata) +); + /* * Tracing for API calls that drivers call. */ @@ -1606,10 +1641,49 @@ TRACE_EVENT(stop_queue, LOCAL_PR_ARG, __entry->queue, __entry->reason ) ); + +#ifdef CONFIG_MAC80211_MESSAGE_TRACING +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mac80211_msg + +#define MAX_MSG_LEN 100 + +DECLARE_EVENT_CLASS(mac80211_msg_event, + TP_PROTO(struct va_format *vaf), + + TP_ARGS(vaf), + + TP_STRUCT__entry( + __dynamic_array(char, msg, MAX_MSG_LEN) + ), + + TP_fast_assign( + WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), + MAX_MSG_LEN, vaf->fmt, + *vaf->va) >= MAX_MSG_LEN); + ), + + TP_printk("%s", __get_str(msg)) +); + +DEFINE_EVENT(mac80211_msg_event, mac80211_info, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); +DEFINE_EVENT(mac80211_msg_event, mac80211_dbg, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); +DEFINE_EVENT(mac80211_msg_event, mac80211_err, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); +#endif + #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -#define TRACE_INCLUDE_FILE driver-trace +#define TRACE_INCLUDE_FILE trace #include <trace/define_trace.h> diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index eab0d19..acf712f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -140,6 +140,8 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, if (r->flags & IEEE80211_RATE_MANDATORY_A) mrate = r->bitrate; break; + case IEEE80211_BAND_60GHZ: + /* TODO, for now fall through */ case IEEE80211_NUM_BANDS: WARN_ON(1); break; @@ -175,12 +177,6 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, return cpu_to_le16(dur); } -static inline int is_ieee80211_device(struct ieee80211_local *local, - struct net_device *dev) -{ - return local == wdev_priv(dev->ieee80211_ptr); -} - /* tx handlers */ static ieee80211_tx_result debug_noinline ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) @@ -297,10 +293,10 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) if (unlikely(!assoc && ieee80211_is_data(hdr->frame_control))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: dropped data frame to not " - "associated station %pM\n", - tx->sdata->name, hdr->addr1); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + sdata_info(tx->sdata, + "dropped data frame to not associated station %pM\n", + hdr->addr1); +#endif I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc); return TX_DROP; } @@ -367,10 +363,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) rcu_read_unlock(); local->total_ps_buffered = total; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - wiphy_debug(local->hw.wiphy, "PS buffers full - purged %d frames\n", - purged); -#endif + ps_dbg_hw(&local->hw, "PS buffers full - purged %d frames\n", purged); } static ieee80211_tx_result @@ -412,10 +405,8 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) purge_old_ps_buffers(tx->local); if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >= AP_MAX_BC_BUFFER) { -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - net_dbg_ratelimited("%s: BC TX buffer full - dropping the oldest frame\n", - tx->sdata->name); -#endif + ps_dbg(tx->sdata, + "BC TX buffer full - dropping the oldest frame\n"); dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf)); } else tx->local->total_ps_buffered++; @@ -466,18 +457,15 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) return TX_CONTINUE; } -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %pM aid %d: PS buffer for AC %d\n", + ps_dbg(sta->sdata, "STA %pM aid %d: PS buffer for AC %d\n", sta->sta.addr, sta->sta.aid, ac); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); if (skb_queue_len(&sta->ps_tx_buf[ac]) >= STA_MAX_TX_BUFFER) { struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf[ac]); -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - net_dbg_ratelimited("%s: STA %pM TX buffer for AC %d full - dropping oldest frame\n", - tx->sdata->name, sta->sta.addr, ac); -#endif + ps_dbg(tx->sdata, + "STA %pM TX buffer for AC %d full - dropping oldest frame\n", + sta->sta.addr, ac); dev_kfree_skb(old); } else tx->local->total_ps_buffered++; @@ -499,14 +487,11 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) sta_info_recalc_tim(sta); return TX_QUEUED; + } else if (unlikely(test_sta_flag(sta, WLAN_STA_PS_STA))) { + ps_dbg(tx->sdata, + "STA %pM in PS mode, but polling/in SP -> send frame\n", + sta->sta.addr); } -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - else if (unlikely(test_sta_flag(sta, WLAN_STA_PS_STA))) { - printk(KERN_DEBUG - "%s: STA %pM in PS mode, but polling/in SP -> send frame\n", - tx->sdata->name, sta->sta.addr); - } -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ return TX_CONTINUE; } @@ -538,7 +523,7 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) { - struct ieee80211_key *key = NULL; + struct ieee80211_key *key; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; @@ -557,16 +542,23 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) else if (!is_multicast_ether_addr(hdr->addr1) && (key = rcu_dereference(tx->sdata->default_unicast_key))) tx->key = key; - else if (tx->sdata->drop_unencrypted && - (tx->skb->protocol != tx->sdata->control_port_protocol) && - !(info->flags & IEEE80211_TX_CTL_INJECTED) && - (!ieee80211_is_robust_mgmt_frame(hdr) || - (ieee80211_is_action(hdr->frame_control) && - tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP)))) { + else if (info->flags & IEEE80211_TX_CTL_INJECTED) + tx->key = NULL; + else if (!tx->sdata->drop_unencrypted) + tx->key = NULL; + else if (tx->skb->protocol == tx->sdata->control_port_protocol) + tx->key = NULL; + else if (ieee80211_is_robust_mgmt_frame(hdr) && + !(ieee80211_is_action(hdr->frame_control) && + tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP))) + tx->key = NULL; + else if (ieee80211_is_mgmt(hdr->frame_control) && + !ieee80211_is_robust_mgmt_frame(hdr)) + tx->key = NULL; + else { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TX_DROP; - } else - tx->key = NULL; + } if (tx->key) { bool skip_hw = false; @@ -974,8 +966,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) info->control.rates[1].idx = -1; info->control.rates[2].idx = -1; info->control.rates[3].idx = -1; - info->control.rates[4].idx = -1; - BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); + BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 4); info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; } else { hdr->frame_control &= ~morefrags; @@ -1310,11 +1301,8 @@ static bool __ieee80211_tx(struct ieee80211_local *local, break; } - if (local->ops->tx_frags) - drv_tx_frags(local, vif, pubsta, skbs); - else - result = ieee80211_tx_frags(local, vif, pubsta, skbs, - txpending); + result = ieee80211_tx_frags(local, vif, pubsta, skbs, + txpending); ieee80211_tpt_led_trig_tx(local, fc, led_len); ieee80211_led_tx(local, 1); @@ -1968,7 +1956,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, (cpu_to_be16(ethertype) != sdata->control_port_protocol || !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - net_dbg_ratelimited("%s: dropped frame to %pM (unauthorized port)\n", + net_info_ratelimited("%s: dropped frame to %pM (unauthorized port)\n", dev->name, hdr.addr1); #endif @@ -2440,9 +2428,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, *pos++ = WLAN_EID_SSID; *pos++ = 0x0; - if (ieee80211_add_srates_ie(&sdata->vif, skb, true) || + if (ieee80211_add_srates_ie(sdata, skb, true) || mesh_add_ds_params_ie(skb, sdata) || - ieee80211_add_ext_srates_ie(&sdata->vif, skb, true) || + ieee80211_add_ext_srates_ie(sdata, skb, true) || mesh_add_rsn_ie(skb, sdata) || mesh_add_ht_cap_ie(skb, sdata) || mesh_add_ht_oper_ie(skb, sdata) || diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 8dd4712..39b82fe 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -268,6 +268,10 @@ EXPORT_SYMBOL(ieee80211_ctstoself_duration); void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) { struct ieee80211_sub_if_data *sdata; + int n_acs = IEEE80211_NUM_ACS; + + if (local->hw.queues < IEEE80211_NUM_ACS) + n_acs = 1; list_for_each_entry_rcu(sdata, &local->interfaces, list) { int ac; @@ -279,7 +283,7 @@ void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) local->queue_stop_reasons[sdata->vif.cab_queue] != 0) continue; - for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + for (ac = 0; ac < n_acs; ac++) { int ac_queue = sdata->vif.hw_queue[ac]; if (ac_queue == queue || @@ -341,6 +345,7 @@ 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; + int n_acs = IEEE80211_NUM_ACS; trace_stop_queue(local, queue, reason); @@ -352,11 +357,14 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, __set_bit(reason, &local->queue_stop_reasons[queue]); + if (local->hw.queues < IEEE80211_NUM_ACS) + n_acs = 1; + rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { int ac; - for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + for (ac = 0; ac < n_acs; ac++) { if (sdata->vif.hw_queue[ac] == queue || sdata->vif.cab_queue == queue) netif_stop_subqueue(sdata->dev, ac); @@ -521,6 +529,11 @@ void ieee80211_iterate_active_interfaces( &sdata->vif); } + sdata = rcu_dereference_protected(local->monitor_sdata, + lockdep_is_held(&local->iflist_mtx)); + if (sdata) + iterator(data, sdata->vif.addr, &sdata->vif); + mutex_unlock(&local->iflist_mtx); } EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); @@ -549,6 +562,10 @@ void ieee80211_iterate_active_interfaces_atomic( &sdata->vif); } + sdata = rcu_dereference(local->monitor_sdata); + if (sdata) + iterator(data, sdata->vif.addr, &sdata->vif); + rcu_read_unlock(); } EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); @@ -804,7 +821,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_tx_queue_params qparam; int ac; - bool use_11b; + bool use_11b, enable_qos; int aCWmin, aCWmax; if (!local->ops->conf_tx) @@ -818,6 +835,13 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) && !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); + /* + * By default disable QoS in STA mode for old access points, which do + * not support 802.11e. New APs will provide proper queue parameters, + * that we will configure later. + */ + enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION); + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { /* Set defaults according to 802.11-2007 Table 7-37 */ aCWmax = 1023; @@ -826,38 +850,47 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, else aCWmin = 15; - switch (ac) { - case IEEE80211_AC_BK: - qparam.cw_max = aCWmax; - qparam.cw_min = aCWmin; - qparam.txop = 0; - qparam.aifs = 7; - break; - default: /* never happens but let's not leave undefined */ - case IEEE80211_AC_BE: + if (enable_qos) { + switch (ac) { + case IEEE80211_AC_BK: + qparam.cw_max = aCWmax; + qparam.cw_min = aCWmin; + qparam.txop = 0; + qparam.aifs = 7; + break; + /* never happens but let's not leave undefined */ + default: + case IEEE80211_AC_BE: + qparam.cw_max = aCWmax; + qparam.cw_min = aCWmin; + qparam.txop = 0; + qparam.aifs = 3; + break; + case IEEE80211_AC_VI: + qparam.cw_max = aCWmin; + qparam.cw_min = (aCWmin + 1) / 2 - 1; + if (use_11b) + qparam.txop = 6016/32; + else + qparam.txop = 3008/32; + qparam.aifs = 2; + break; + case IEEE80211_AC_VO: + qparam.cw_max = (aCWmin + 1) / 2 - 1; + qparam.cw_min = (aCWmin + 1) / 4 - 1; + if (use_11b) + qparam.txop = 3264/32; + else + qparam.txop = 1504/32; + qparam.aifs = 2; + break; + } + } else { + /* Confiure old 802.11b/g medium access rules. */ qparam.cw_max = aCWmax; qparam.cw_min = aCWmin; qparam.txop = 0; - qparam.aifs = 3; - break; - case IEEE80211_AC_VI: - qparam.cw_max = aCWmin; - qparam.cw_min = (aCWmin + 1) / 2 - 1; - if (use_11b) - qparam.txop = 6016/32; - else - qparam.txop = 3008/32; - qparam.aifs = 2; - break; - case IEEE80211_AC_VO: - qparam.cw_max = (aCWmin + 1) / 2 - 1; - qparam.cw_min = (aCWmin + 1) / 4 - 1; - if (use_11b) - qparam.txop = 3264/32; - else - qparam.txop = 1504/32; qparam.aifs = 2; - break; } qparam.uapsd = false; @@ -866,12 +899,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, drv_conf_tx(local, sdata, ac, &qparam); } - /* after reinitialize QoS TX queues setting to default, - * disable QoS at all */ - if (sdata->vif.type != NL80211_IFTYPE_MONITOR) { - sdata->vif.bss_conf.qos = - sdata->vif.type != NL80211_IFTYPE_STATION; + sdata->vif.bss_conf.qos = enable_qos; if (bss_notify) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); @@ -979,6 +1008,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, int ext_rates_len; sband = local->hw.wiphy->bands[band]; + if (WARN_ON_ONCE(!sband)) + return 0; pos = buffer; @@ -1060,6 +1091,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, pos += noffset - offset; } + if (sband->vht_cap.vht_supported) + pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, + sband->vht_cap.cap); + return pos - buffer; } @@ -1267,14 +1302,19 @@ int ieee80211_reconfig(struct ieee80211_local *local) /* add STAs back */ mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { - if (sta->uploaded) { - enum ieee80211_sta_state state; + enum ieee80211_sta_state state; - for (state = IEEE80211_STA_NOTEXIST; - state < sta->sta_state; state++) - WARN_ON(drv_sta_state(local, sta->sdata, sta, - state, state + 1)); - } + if (!sta->uploaded) + continue; + + /* AP-mode stations will be added later */ + if (sta->sdata->vif.type == NL80211_IFTYPE_AP) + continue; + + for (state = IEEE80211_STA_NOTEXIST; + state < sta->sta_state; state++) + WARN_ON(drv_sta_state(local, sta->sdata, sta, state, + state + 1)); } mutex_unlock(&local->sta_mtx); @@ -1371,12 +1411,33 @@ int ieee80211_reconfig(struct ieee80211_local *local) } } + /* APs are now beaconing, add back stations */ + mutex_lock(&local->sta_mtx); + list_for_each_entry(sta, &local->sta_list, list) { + enum ieee80211_sta_state state; + + if (!sta->uploaded) + continue; + + if (sta->sdata->vif.type != NL80211_IFTYPE_AP) + continue; + + for (state = IEEE80211_STA_NOTEXIST; + state < sta->sta_state; state++) + WARN_ON(drv_sta_state(local, sta->sdata, sta, state, + state + 1)); + } + mutex_unlock(&local->sta_mtx); + /* add back keys */ list_for_each_entry(sdata, &local->interfaces, list) if (ieee80211_sdata_running(sdata)) ieee80211_enable_keys(sdata); wake_up: + local->in_reconfig = false; + barrier(); + /* * Clear the WLAN_STA_BLOCK_BA flag so new aggregation * sessions can be established after a resume. @@ -1661,6 +1722,27 @@ u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, return pos; } +u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, + u32 cap) +{ + __le32 tmp; + + *pos++ = WLAN_EID_VHT_CAPABILITY; + *pos++ = sizeof(struct ieee80211_vht_capabilities); + memset(pos, 0, sizeof(struct ieee80211_vht_capabilities)); + + /* capability flags */ + tmp = cpu_to_le32(cap); + memcpy(pos, &tmp, sizeof(u32)); + pos += sizeof(u32); + + /* VHT MCS set */ + memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); + pos += sizeof(vht_cap->vht_mcs); + + return pos; +} + 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, @@ -1726,15 +1808,14 @@ ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper) return channel_type; } -int ieee80211_add_srates_ie(struct ieee80211_vif *vif, +int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, bool need_basic) { - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; int rate; u8 i, rates, *pos; - u32 basic_rates = vif->bss_conf.basic_rates; + u32 basic_rates = sdata->vif.bss_conf.basic_rates; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; rates = sband->n_bitrates; @@ -1758,15 +1839,14 @@ int ieee80211_add_srates_ie(struct ieee80211_vif *vif, return 0; } -int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif, +int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, bool need_basic) { - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; int rate; u8 i, exrates, *pos; - u32 basic_rates = vif->bss_conf.basic_rates; + u32 basic_rates = sdata->vif.bss_conf.basic_rates; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; exrates = sband->n_bitrates; diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index c3d643a..cea06e9 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -52,11 +52,11 @@ static int wme_downgrade_ac(struct sk_buff *skb) } } -static u16 ieee80211_downgrade_queue(struct ieee80211_local *local, +static u16 ieee80211_downgrade_queue(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { /* in case we are a client verify acm is not set for this ac */ - while (unlikely(local->wmm_acm & BIT(skb->priority))) { + while (unlikely(sdata->wmm_acm & BIT(skb->priority))) { if (wme_downgrade_ac(skb)) { /* * This should not really happen. The AP has marked all @@ -73,10 +73,11 @@ static u16 ieee80211_downgrade_queue(struct ieee80211_local *local, } /* Indicate which queue to use for this fully formed 802.11 frame */ -u16 ieee80211_select_queue_80211(struct ieee80211_local *local, +u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, struct ieee80211_hdr *hdr) { + struct ieee80211_local *local = sdata->local; u8 *p; if (local->hw.queues < IEEE80211_NUM_ACS) @@ -94,7 +95,7 @@ u16 ieee80211_select_queue_80211(struct ieee80211_local *local, p = ieee80211_get_qos_ctl(hdr); skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK; - return ieee80211_downgrade_queue(local, skb); + return ieee80211_downgrade_queue(sdata, skb); } /* Indicate which queue to use. */ @@ -156,7 +157,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, * data frame has */ skb->priority = cfg80211_classify8021d(skb); - return ieee80211_downgrade_queue(local, skb); + return ieee80211_downgrade_queue(sdata, skb); } void ieee80211_set_qos_hdr(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h index ca80818..7fea4bb 100644 --- a/net/mac80211/wme.h +++ b/net/mac80211/wme.h @@ -15,7 +15,7 @@ extern const int ieee802_1d_to_ac[8]; -u16 ieee80211_select_queue_80211(struct ieee80211_local *local, +u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, struct ieee80211_hdr *hdr); u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/work.c b/net/mac80211/work.c deleted file mode 100644 index b2650a9..0000000 --- a/net/mac80211/work.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * mac80211 work implementation - * - * Copyright 2003-2008, Jouni Malinen <j@w1.fi> - * Copyright 2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007, Michael Wu <flamingice@sourmilk.net> - * Copyright 2009, Johannes Berg <johannes@sipsolutions.net> - * - * 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/delay.h> -#include <linux/if_ether.h> -#include <linux/skbuff.h> -#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> - -#include "ieee80211_i.h" -#include "rate.h" -#include "driver-ops.h" - -enum work_action { - WORK_ACT_NONE, - WORK_ACT_TIMEOUT, -}; - - -/* utils */ -static inline void ASSERT_WORK_MTX(struct ieee80211_local *local) -{ - lockdep_assert_held(&local->mtx); -} - -/* - * We can have multiple work items (and connection probing) - * scheduling this timer, but we need to take care to only - * reschedule it when it should fire _earlier_ than it was - * asked for before, or if it's not pending right now. This - * function ensures that. Note that it then is required to - * run this function for all timeouts after the first one - * has happened -- the work that runs from this timer will - * do that. - */ -static void run_again(struct ieee80211_local *local, - unsigned long timeout) -{ - ASSERT_WORK_MTX(local); - - if (!timer_pending(&local->work_timer) || - time_before(timeout, local->work_timer.expires)) - mod_timer(&local->work_timer, timeout); -} - -void free_work(struct ieee80211_work *wk) -{ - kfree_rcu(wk, rcu_head); -} - -static enum work_action __must_check -ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk) -{ - /* - * First time we run, do nothing -- the generic code will - * have switched to the right channel etc. - */ - if (!wk->started) { - wk->timeout = jiffies + msecs_to_jiffies(wk->remain.duration); - - cfg80211_ready_on_channel(wk->sdata->dev, (unsigned long) wk, - wk->chan, wk->chan_type, - wk->remain.duration, GFP_KERNEL); - - return WORK_ACT_NONE; - } - - return WORK_ACT_TIMEOUT; -} - -static enum work_action __must_check -ieee80211_offchannel_tx(struct ieee80211_work *wk) -{ - if (!wk->started) { - wk->timeout = jiffies + msecs_to_jiffies(wk->offchan_tx.wait); - - /* - * After this, offchan_tx.frame remains but now is no - * longer a valid pointer -- we still need it as the - * cookie for canceling this work/status matching. - */ - ieee80211_tx_skb(wk->sdata, wk->offchan_tx.frame); - - return WORK_ACT_NONE; - } - - return WORK_ACT_TIMEOUT; -} - -static void ieee80211_work_timer(unsigned long data) -{ - struct ieee80211_local *local = (void *) data; - - if (local->quiescing) - return; - - ieee80211_queue_work(&local->hw, &local->work_work); -} - -static void ieee80211_work_work(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, work_work); - struct ieee80211_work *wk, *tmp; - LIST_HEAD(free_work); - enum work_action rma; - bool remain_off_channel = false; - - /* - * ieee80211_queue_work() should have picked up most cases, - * here we'll pick the rest. - */ - if (WARN(local->suspended, "work scheduled while going to suspend\n")) - return; - - mutex_lock(&local->mtx); - - if (local->scanning) { - mutex_unlock(&local->mtx); - return; - } - - ieee80211_recalc_idle(local); - - list_for_each_entry_safe(wk, tmp, &local->work_list, list) { - bool started = wk->started; - - /* mark work as started if it's on the current off-channel */ - if (!started && local->tmp_channel && - wk->chan == local->tmp_channel && - wk->chan_type == local->tmp_channel_type) { - started = true; - wk->timeout = jiffies; - } - - if (!started && !local->tmp_channel) { - ieee80211_offchannel_stop_vifs(local, true); - - local->tmp_channel = wk->chan; - local->tmp_channel_type = wk->chan_type; - - ieee80211_hw_config(local, 0); - - started = true; - wk->timeout = jiffies; - } - - /* don't try to work with items that aren't started */ - if (!started) - continue; - - if (time_is_after_jiffies(wk->timeout)) { - /* - * This work item isn't supposed to be worked on - * right now, but take care to adjust the timer - * properly. - */ - run_again(local, wk->timeout); - continue; - } - - switch (wk->type) { - default: - WARN_ON(1); - /* nothing */ - rma = WORK_ACT_NONE; - break; - case IEEE80211_WORK_ABORT: - rma = WORK_ACT_TIMEOUT; - break; - case IEEE80211_WORK_REMAIN_ON_CHANNEL: - rma = ieee80211_remain_on_channel_timeout(wk); - break; - case IEEE80211_WORK_OFFCHANNEL_TX: - rma = ieee80211_offchannel_tx(wk); - break; - } - - wk->started = started; - - switch (rma) { - case WORK_ACT_NONE: - /* might have changed the timeout */ - run_again(local, wk->timeout); - break; - case WORK_ACT_TIMEOUT: - list_del_rcu(&wk->list); - synchronize_rcu(); - list_add(&wk->list, &free_work); - break; - default: - WARN(1, "unexpected: %d", rma); - } - } - - list_for_each_entry(wk, &local->work_list, list) { - if (!wk->started) - continue; - if (wk->chan != local->tmp_channel || - wk->chan_type != local->tmp_channel_type) - continue; - remain_off_channel = true; - } - - if (!remain_off_channel && local->tmp_channel) { - local->tmp_channel = NULL; - ieee80211_hw_config(local, 0); - - ieee80211_offchannel_return(local, true); - - /* give connection some time to breathe */ - run_again(local, jiffies + HZ/2); - } - - ieee80211_recalc_idle(local); - ieee80211_run_deferred_scan(local); - - mutex_unlock(&local->mtx); - - list_for_each_entry_safe(wk, tmp, &free_work, list) { - wk->done(wk, NULL); - list_del(&wk->list); - kfree(wk); - } -} - -void ieee80211_add_work(struct ieee80211_work *wk) -{ - struct ieee80211_local *local; - - if (WARN_ON(!wk->chan)) - return; - - if (WARN_ON(!wk->sdata)) - return; - - if (WARN_ON(!wk->done)) - return; - - if (WARN_ON(!ieee80211_sdata_running(wk->sdata))) - return; - - wk->started = false; - - local = wk->sdata->local; - mutex_lock(&local->mtx); - list_add_tail(&wk->list, &local->work_list); - mutex_unlock(&local->mtx); - - ieee80211_queue_work(&local->hw, &local->work_work); -} - -void ieee80211_work_init(struct ieee80211_local *local) -{ - INIT_LIST_HEAD(&local->work_list); - setup_timer(&local->work_timer, ieee80211_work_timer, - (unsigned long)local); - INIT_WORK(&local->work_work, ieee80211_work_work); -} - -void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk; - bool cleanup = false; - - mutex_lock(&local->mtx); - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - cleanup = true; - wk->type = IEEE80211_WORK_ABORT; - wk->started = true; - wk->timeout = jiffies; - } - mutex_unlock(&local->mtx); - - /* run cleanups etc. */ - if (cleanup) - ieee80211_work_work(&local->work_work); - - mutex_lock(&local->mtx); - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - WARN_ON(1); - break; - } - mutex_unlock(&local->mtx); -} - -static enum work_done_result ieee80211_remain_done(struct ieee80211_work *wk, - struct sk_buff *skb) -{ - /* - * We are done serving the remain-on-channel command. - */ - cfg80211_remain_on_channel_expired(wk->sdata->dev, (unsigned long) wk, - wk->chan, wk->chan_type, - GFP_KERNEL); - - return WORK_DONE_DESTROY; -} - -int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - unsigned int duration, u64 *cookie) -{ - struct ieee80211_work *wk; - - wk = kzalloc(sizeof(*wk), GFP_KERNEL); - if (!wk) - return -ENOMEM; - - wk->type = IEEE80211_WORK_REMAIN_ON_CHANNEL; - wk->chan = chan; - wk->chan_type = channel_type; - wk->sdata = sdata; - wk->done = ieee80211_remain_done; - - wk->remain.duration = duration; - - *cookie = (unsigned long) wk; - - ieee80211_add_work(wk); - - return 0; -} - -int ieee80211_wk_cancel_remain_on_channel(struct ieee80211_sub_if_data *sdata, - u64 cookie) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk, *tmp; - bool found = false; - - mutex_lock(&local->mtx); - list_for_each_entry_safe(wk, tmp, &local->work_list, list) { - if ((unsigned long) wk == cookie) { - wk->timeout = jiffies; - found = true; - break; - } - } - mutex_unlock(&local->mtx); - - if (!found) - return -ENOENT; - - ieee80211_queue_work(&local->hw, &local->work_work); - - return 0; -} |
