*/
#define IEEE80211_PROBE_WAIT (HZ / 2)
+/*
+ * Weight given to the latest Beacon frame when calculating average signal
+ * strength for Beacon frames received in the current BSS. This must be
+ * between 1 and 15.
+ */
+#define IEEE80211_SIGNAL_AVE_WEIGHT 3
+
#define TMR_RUNNING_TIMER 0
#define TMR_RUNNING_CHANSW 1
struct sta_info *sta;
u32 changed = 0;
u16 ht_opmode;
- bool enable_ht = true, ht_changed;
+ bool enable_ht = true;
+ enum nl80211_channel_type prev_chantype;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ prev_chantype = sdata->vif.bss_conf.channel_type;
+
/* HT is not supported */
if (!sband->ht_cap.ht_supported)
enable_ht = false;
}
}
- ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
- channel_type != local->hw.conf.channel_type;
-
if (local->tmp_channel)
local->tmp_channel_type = channel_type;
- local->oper_channel_type = channel_type;
- if (ht_changed) {
- /* channel_type change automatically detected */
- ieee80211_hw_config(local, 0);
+ if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
+ /* can only fail due to HT40+/- mismatch */
+ channel_type = NL80211_CHAN_HT20;
+ WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type));
+ }
+
+ /* channel_type change automatically detected */
+ ieee80211_hw_config(local, 0);
+ if (prev_chantype != channel_type) {
rcu_read_lock();
sta = sta_info_get(sdata, bssid);
if (sta)
rate_control_rate_update(local, sband, sta,
IEEE80211_RC_HT_CHANGED,
- local->oper_channel_type);
+ channel_type);
rcu_read_unlock();
- }
-
- /* disable HT */
- if (!enable_ht)
- return 0;
+ }
ht_opmode = le16_to_cpu(hti->operation_mode);
/* if bss configuration changed store the new one */
- if (!sdata->ht_opmode_valid ||
- sdata->vif.bss_conf.ht_operation_mode != ht_opmode) {
+ if (sdata->ht_opmode_valid != enable_ht ||
+ sdata->vif.bss_conf.ht_operation_mode != ht_opmode ||
+ prev_chantype != channel_type) {
changed |= BSS_CHANGED_HT;
sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
- sdata->ht_opmode_valid = true;
+ sdata->ht_opmode_valid = enable_ht;
}
return changed;
static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype, u16 reason,
- void *cookie)
+ void *cookie, bool send_frame)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
- ieee80211_tx_skb(sdata, skb);
+
+ if (send_frame)
+ ieee80211_tx_skb(sdata, skb);
+ else
+ kfree_skb(skb);
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
goto out;
sdata->local->oper_channel = sdata->local->csa_channel;
- ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL);
+ if (!sdata->local->ops->channel_switch) {
+ /* call "hw_config" only if doing sw channel switch */
+ ieee80211_hw_config(sdata->local,
+ IEEE80211_CONF_CHANGE_CHANNEL);
+ }
/* XXX: shouldn't really modify cfg80211-owned data! */
ifmgd->associated->channel = sdata->local->oper_channel;
mutex_unlock(&ifmgd->mtx);
}
+void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_managed *ifmgd;
+
+ sdata = vif_to_sdata(vif);
+ ifmgd = &sdata->u.mgd;
+
+ trace_api_chswitch_done(sdata, success);
+ if (!success) {
+ /*
+ * If the channel switch was not successful, stay
+ * around on the old channel. We currently lack
+ * good handling of this situation, possibly we
+ * should just drop the association.
+ */
+ sdata->local->csa_channel = sdata->local->oper_channel;
+ }
+
+ ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
+}
+EXPORT_SYMBOL(ieee80211_chswitch_done);
+
static void ieee80211_chswitch_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel_sw_ie *sw_elem,
- struct ieee80211_bss *bss)
+ struct ieee80211_bss *bss,
+ u64 timestamp)
{
struct cfg80211_bss *cbss =
container_of((void *)bss, struct cfg80211_bss, priv);
sdata->local->csa_channel = new_ch;
+ if (sdata->local->ops->channel_switch) {
+ /* use driver's channel switch callback */
+ struct ieee80211_channel_switch ch_switch;
+ memset(&ch_switch, 0, sizeof(ch_switch));
+ ch_switch.timestamp = timestamp;
+ if (sw_elem->mode) {
+ ch_switch.block_tx = true;
+ ieee80211_stop_queues_by_reason(&sdata->local->hw,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+ }
+ ch_switch.channel = new_ch;
+ ch_switch.count = sw_elem->count;
+ ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+ drv_channel_switch(sdata->local, &ch_switch);
+ return;
+ }
+
+ /* channel switch handled in software */
if (sw_elem->count <= 1) {
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
} else {
- ieee80211_stop_queues_by_reason(&sdata->local->hw,
+ if (sw_elem->mode)
+ ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
mod_timer(&ifmgd->chswitch_timer,
}
}
+void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local->hw.conf;
+
+ WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
+ (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
+
+ local->disable_dynamic_ps = false;
+ conf->dynamic_ps_timeout = local->dynamic_ps_user_timeout;
+}
+EXPORT_SYMBOL(ieee80211_enable_dyn_ps);
+
+void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local->hw.conf;
+
+ WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
+ (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
+
+ local->disable_dynamic_ps = true;
+ conf->dynamic_ps_timeout = 0;
+ del_timer_sync(&local->dynamic_ps_timer);
+ ieee80211_queue_work(&local->hw,
+ &local->dynamic_ps_enable_work);
+}
+EXPORT_SYMBOL(ieee80211_disable_dyn_ps);
+
/* powersave */
static void ieee80211_enable_ps(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_sub_if_data *sdata, *found = NULL;
int count = 0;
+ int timeout;
if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) {
local->ps_sdata = NULL;
found->u.mgd.associated->beacon_ies &&
!(found->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL))) {
+ struct ieee80211_conf *conf = &local->hw.conf;
s32 beaconint_us;
if (latency < 0)
- latency = pm_qos_requirement(PM_QOS_NETWORK_LATENCY);
+ latency = pm_qos_request(PM_QOS_NETWORK_LATENCY);
beaconint_us = ieee80211_tu_to_usec(
found->vif.bss_conf.beacon_int);
+ timeout = local->dynamic_ps_forced_timeout;
+ if (timeout < 0) {
+ /*
+ * Go to full PSM if the user configures a very low
+ * latency requirement.
+ * The 2 second value is there for compatibility until
+ * the PM_QOS_NETWORK_LATENCY is configured with real
+ * values.
+ */
+ if (latency > 1900000000 && latency != 2000000000)
+ timeout = 0;
+ else
+ timeout = 100;
+ }
+ local->dynamic_ps_user_timeout = timeout;
+ if (!local->disable_dynamic_ps)
+ conf->dynamic_ps_timeout =
+ local->dynamic_ps_user_timeout;
+
if (beaconint_us > latency) {
local->ps_sdata = NULL;
} else {
int count;
u8 *pos, uapsd_queues = 0;
+ if (!local->ops->conf_tx)
+ return;
+
if (local->hw.queues < 4)
return;
params.aifs, params.cw_min, params.cw_max, params.txop,
params.uapsd);
#endif
- if (drv_conf_tx(local, queue, ¶ms) && local->ops->conf_tx)
+ if (drv_conf_tx(local, queue, ¶ms))
printk(KERN_DEBUG "%s: failed to set TX queue "
"parameters for queue %d\n",
wiphy_name(local->hw.wiphy), queue);
}
+
+ /* enable WMM or activate new settings */
+ local->hw.conf.flags |= IEEE80211_CONF_QOS;
+ drv_config(local, IEEE80211_CONF_CHANGE_QOS);
}
static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_bss *bss = (void *)cbss->priv;
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
bss_info_changed |= BSS_CHANGED_ASSOC;
/* set timing information */
- sdata->vif.bss_conf.beacon_int = cbss->beacon_interval;
- sdata->vif.bss_conf.timestamp = cbss->tsf;
+ bss_conf->beacon_int = cbss->beacon_interval;
+ bss_conf->timestamp = cbss->tsf;
bss_info_changed |= BSS_CHANGED_BEACON_INT;
bss_info_changed |= ieee80211_handle_bss_capability(sdata,
sdata->u.mgd.associated = cbss;
memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
+ sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
+
/* just to be sure */
sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
ieee80211_led_assoc(local, 1);
- sdata->vif.bss_conf.assoc = 1;
+ bss_conf->assoc = 1;
/*
* For now just always ask the driver to update the basic rateset
* when we have associated, we aren't checking whether it actually
/* And the BSSID changed - we're associated now */
bss_info_changed |= BSS_CHANGED_BSSID;
+ /* Tell the driver to monitor connection quality (if supported) */
+ if ((local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI) &&
+ bss_conf->cqm_rssi_thold)
+ bss_info_changed |= BSS_CHANGED_CQM;
+
+ /* Enable ARP filtering */
+ if (bss_conf->arp_filter_enabled != sdata->arp_filter_state) {
+ bss_conf->arp_filter_enabled = sdata->arp_filter_state;
+ bss_info_changed |= BSS_CHANGED_ARP_FILTER;
+ }
+
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
mutex_lock(&local->iflist_mtx);
netif_carrier_on(sdata->dev);
}
-static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
+ bool remove_sta)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
- rcu_read_lock();
+ mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, bssid);
if (sta) {
- set_sta_flags(sta, WLAN_STA_DISASSOC);
+ set_sta_flags(sta, WLAN_STA_BLOCK_BA);
ieee80211_sta_tear_down_BA_sessions(sta);
}
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_set_wmm_default(sdata);
/* channel(_type) changes are handled by ieee80211_hw_config */
- local->oper_channel_type = NL80211_CHAN_NO_HT;
+ WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
/* on the next assoc, re-program HT parameters */
sdata->ht_opmode_valid = false;
ieee80211_hw_config(local, config_changed);
- /* And the BSSID changed -- not very interesting here */
- changed |= BSS_CHANGED_BSSID;
+ /* Disable ARP filtering */
+ if (sdata->vif.bss_conf.arp_filter_enabled) {
+ sdata->vif.bss_conf.arp_filter_enabled = false;
+ changed |= BSS_CHANGED_ARP_FILTER;
+ }
+
+ /* The BSSID (not really interesting) and HT changed */
+ changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
ieee80211_bss_info_change_notify(sdata, changed);
- sta_info_destroy_addr(sdata, bssid);
+ if (remove_sta)
+ sta_info_destroy_addr(sdata, bssid);
}
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
if (is_multicast_ether_addr(hdr->addr1))
return;
+ if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+ return;
+
mod_timer(&sdata->u.mgd.conn_mon_timer,
round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
}
mutex_unlock(&ifmgd->mtx);
}
-void ieee80211_beacon_loss_work(struct work_struct *work)
+static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_local *local = sdata->local;
+ u8 bssid[ETH_ALEN];
+
+ mutex_lock(&ifmgd->mtx);
+ if (!ifmgd->associated) {
+ mutex_unlock(&ifmgd->mtx);
+ return;
+ }
+
+ memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
+
+ printk(KERN_DEBUG "Connection to AP %pM lost.\n", bssid);
+
+ ieee80211_set_disassoc(sdata, true);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&ifmgd->mtx);
+ /*
+ * must be outside lock due to cfg80211,
+ * but that's not a problem.
+ */
+ ieee80211_send_deauth_disassoc(sdata, bssid,
+ IEEE80211_STYPE_DEAUTH,
+ WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
+ NULL, true);
+}
+
+void ieee80211_beacon_connection_loss_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
- u.mgd.beacon_loss_work);
+ u.mgd.beacon_connection_loss_work);
- ieee80211_mgd_probe_ap(sdata, true);
+ if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+ __ieee80211_connection_loss(sdata);
+ else
+ ieee80211_mgd_probe_ap(sdata, true);
}
void ieee80211_beacon_loss(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_hw *hw = &sdata->local->hw;
+
+ trace_api_beacon_loss(sdata);
- ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work);
+ WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR);
+ ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
}
EXPORT_SYMBOL(ieee80211_beacon_loss);
+void ieee80211_connection_loss(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_hw *hw = &sdata->local->hw;
+
+ trace_api_connection_loss(sdata);
+
+ WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR));
+ ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
+}
+EXPORT_SYMBOL(ieee80211_connection_loss);
+
+
static enum rx_mgmt_action __must_check
ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n",
sdata->name, bssid, reason_code);
- ieee80211_set_disassoc(sdata);
+ ieee80211_set_disassoc(sdata, true);
ieee80211_recalc_idle(sdata->local);
return RX_MGMT_CFG80211_DEAUTH;
printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n",
sdata->name, mgmt->sa, reason_code);
- ieee80211_set_disassoc(sdata);
+ ieee80211_set_disassoc(sdata, true);
ieee80211_recalc_idle(sdata->local);
return RX_MGMT_CFG80211_DISASSOC;
}
ETH_ALEN) == 0)) {
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
- ieee80211_sta_process_chanswitch(sdata, sw_elem, bss);
+ ieee80211_sta_process_chanswitch(sdata, sw_elem,
+ bss, rx_status->mactime);
}
}
mutex_lock(&sdata->local->iflist_mtx);
ieee80211_recalc_ps(sdata->local, -1);
mutex_unlock(&sdata->local->iflist_mtx);
+
+ if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+ return;
+
/*
* We've received a probe response, but are not sure whether
* we have or will be receiving any beacons or data, so let's
* schedule the timers again, just in case.
*/
mod_beacon_timer(sdata);
+
mod_timer(&ifmgd->conn_mon_timer,
round_jiffies_up(jiffies +
IEEE80211_CONNECTION_IDLE_TIME));
struct ieee80211_rx_status *rx_status)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
size_t baselen;
struct ieee802_11_elems elems;
struct ieee80211_local *local = sdata->local;
if (memcmp(bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
+ /* Track average RSSI from the Beacon frames of the current AP */
+ ifmgd->last_beacon_signal = rx_status->signal;
+ if (ifmgd->flags & IEEE80211_STA_RESET_SIGNAL_AVE) {
+ ifmgd->flags &= ~IEEE80211_STA_RESET_SIGNAL_AVE;
+ ifmgd->ave_beacon_signal = rx_status->signal;
+ ifmgd->last_cqm_event_signal = 0;
+ } else {
+ ifmgd->ave_beacon_signal =
+ (IEEE80211_SIGNAL_AVE_WEIGHT * rx_status->signal * 16 +
+ (16 - IEEE80211_SIGNAL_AVE_WEIGHT) *
+ ifmgd->ave_beacon_signal) / 16;
+ }
+ if (bss_conf->cqm_rssi_thold &&
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
+ int sig = ifmgd->ave_beacon_signal / 16;
+ int last_event = ifmgd->last_cqm_event_signal;
+ int thold = bss_conf->cqm_rssi_thold;
+ int hyst = bss_conf->cqm_rssi_hyst;
+ if (sig < thold &&
+ (last_event == 0 || sig < last_event - hyst)) {
+ ifmgd->last_cqm_event_signal = sig;
+ ieee80211_cqm_rssi_notify(
+ &sdata->vif,
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
+ GFP_KERNEL);
+ } else if (sig > thold &&
+ (last_event == 0 || sig > last_event + hyst)) {
+ ifmgd->last_cqm_event_signal = sig;
+ ieee80211_cqm_rssi_notify(
+ &sdata->vif,
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
+ GFP_KERNEL);
+ }
+ }
+
if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit()) {
ieee80211_bss_info_change_notify(sdata, changed);
}
-ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_DEAUTH:
- case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_ACTION:
- skb_queue_tail(&sdata->u.mgd.skb_queue, skb);
- ieee80211_queue_work(&local->hw, &sdata->u.mgd.work);
- return RX_QUEUED;
- }
-
- return RX_DROP_MONITOR;
-}
-
-static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb)
+void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_rx_status *rx_status;
rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
break;
case IEEE80211_STYPE_ACTION:
- if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
+ switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_SPECTRUM_MGMT:
+ ieee80211_sta_process_chanswitch(sdata,
+ &mgmt->u.action.u.chan_switch.sw_elem,
+ (void *)ifmgd->associated->priv,
+ rx_status->mactime);
break;
-
- ieee80211_sta_process_chanswitch(sdata,
- &mgmt->u.action.u.chan_switch.sw_elem,
- (void *)ifmgd->associated->priv);
- break;
+ }
}
mutex_unlock(&ifmgd->mtx);
default:
WARN(1, "unexpected: %d", rma);
}
- goto out;
+ return;
}
mutex_unlock(&ifmgd->mtx);
if (skb->len >= 24 + 2 /* mgmt + deauth reason */ &&
- (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_DEAUTH)
- cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
+ (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_DEAUTH) {
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_work *wk;
- out:
- kfree_skb(skb);
+ mutex_lock(&local->work_mtx);
+ list_for_each_entry(wk, &local->work_list, list) {
+ if (wk->sdata != sdata)
+ continue;
+
+ if (wk->type != IEEE80211_WORK_ASSOC)
+ continue;
+
+ if (memcmp(mgmt->bssid, wk->filter_ta, ETH_ALEN))
+ continue;
+ if (memcmp(mgmt->sa, wk->filter_ta, ETH_ALEN))
+ continue;
+
+ /*
+ * Printing the message only here means we can't
+ * spuriously print it, but it also means that it
+ * won't be printed when the frame comes in before
+ * we even tried to associate or in similar cases.
+ *
+ * Ultimately, I suspect cfg80211 should print the
+ * messages instead.
+ */
+ printk(KERN_DEBUG
+ "%s: deauthenticated from %pM (Reason: %u)\n",
+ sdata->name, mgmt->bssid,
+ le16_to_cpu(mgmt->u.deauth.reason_code));
+
+ list_del_rcu(&wk->list);
+ free_work(wk);
+ break;
+ }
+ mutex_unlock(&local->work_mtx);
+
+ cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
+ }
}
static void ieee80211_sta_timer(unsigned long data)
return;
}
- ieee80211_queue_work(&local->hw, &ifmgd->work);
+ ieee80211_queue_work(&local->hw, &sdata->work);
}
-static void ieee80211_sta_work(struct work_struct *work)
+void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.mgd.work);
struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_managed *ifmgd;
- struct sk_buff *skb;
-
- if (!ieee80211_sdata_running(sdata))
- return;
-
- if (local->scanning)
- return;
-
- if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
- return;
-
- /*
- * ieee80211_queue_work() should have picked up most cases,
- * here we'll pick the the rest.
- */
- if (WARN(local->suspended, "STA MLME work scheduled while "
- "going to suspend\n"))
- return;
-
- ifmgd = &sdata->u.mgd;
-
- /* first process frames to avoid timing out while a frame is pending */
- while ((skb = skb_dequeue(&ifmgd->skb_queue)))
- ieee80211_sta_rx_queued_mgmt(sdata, skb);
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
/* then process the rest of the work */
mutex_lock(&ifmgd->mtx);
printk(KERN_DEBUG "No probe response from AP %pM"
" after %dms, disconnecting.\n",
bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ);
- ieee80211_set_disassoc(sdata);
+ ieee80211_set_disassoc(sdata, true);
ieee80211_recalc_idle(local);
mutex_unlock(&ifmgd->mtx);
/*
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
- NULL);
+ NULL, true);
mutex_lock(&ifmgd->mtx);
}
}
if (local->quiescing)
return;
- ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work);
+ ieee80211_queue_work(&sdata->local->hw,
+ &sdata->u.mgd.beacon_connection_loss_work);
}
static void ieee80211_sta_conn_mon_timer(unsigned long data)
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.monitor_work);
/* and do all the other regular work too */
- ieee80211_queue_work(&sdata->local->hw,
- &sdata->u.mgd.work);
+ ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
}
* time -- the code here is properly synchronised.
*/
- cancel_work_sync(&ifmgd->work);
- cancel_work_sync(&ifmgd->beacon_loss_work);
+ cancel_work_sync(&ifmgd->beacon_connection_loss_work);
if (del_timer_sync(&ifmgd->timer))
set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
struct ieee80211_if_managed *ifmgd;
ifmgd = &sdata->u.mgd;
- INIT_WORK(&ifmgd->work, ieee80211_sta_work);
INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work);
INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
- INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work);
+ INIT_WORK(&ifmgd->beacon_connection_loss_work,
+ ieee80211_beacon_connection_loss_work);
setup_timer(&ifmgd->timer, ieee80211_sta_timer,
(unsigned long) sdata);
setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer,
(unsigned long) sdata);
setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
- skb_queue_head_init(&ifmgd->skb_queue);
ifmgd->flags = 0;
struct ieee80211_work *wk;
u16 auth_alg;
+ if (req->local_state_change)
+ return 0; /* no need to update mac80211 state */
+
switch (req->auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
auth_alg = WLAN_AUTH_OPEN;
wk->filter_ta);
return WORK_DONE_DESTROY;
}
+
mutex_unlock(&wk->sdata->u.mgd.mtx);
}
}
/* Trying to reassociate - clear previous association state */
- ieee80211_set_disassoc(sdata);
+ ieee80211_set_disassoc(sdata, true);
}
mutex_unlock(&ifmgd->mtx);
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_work *wk;
- const u8 *bssid = req->bss->bssid;
+ u8 bssid[ETH_ALEN];
+ bool assoc_bss = false;
mutex_lock(&ifmgd->mtx);
+ memcpy(bssid, req->bss->bssid, ETH_ALEN);
if (ifmgd->associated == req->bss) {
- bssid = req->bss->bssid;
- ieee80211_set_disassoc(sdata);
+ ieee80211_set_disassoc(sdata, false);
mutex_unlock(&ifmgd->mtx);
+ assoc_bss = true;
} else {
bool not_auth_yet = false;
printk(KERN_DEBUG "%s: deauthenticating from %pM by local choice (reason=%d)\n",
sdata->name, bssid, req->reason_code);
- ieee80211_send_deauth_disassoc(sdata, bssid,
- IEEE80211_STYPE_DEAUTH, req->reason_code,
- cookie);
+ ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH,
+ req->reason_code, cookie,
+ !req->local_state_change);
+ if (assoc_bss)
+ sta_info_destroy_addr(sdata, bssid);
ieee80211_recalc_idle(sdata->local);
void *cookie)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ u8 bssid[ETH_ALEN];
mutex_lock(&ifmgd->mtx);
printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n",
sdata->name, req->bss->bssid, req->reason_code);
- ieee80211_set_disassoc(sdata);
+ memcpy(bssid, req->bss->bssid, ETH_ALEN);
+ ieee80211_set_disassoc(sdata, false);
mutex_unlock(&ifmgd->mtx);
ieee80211_send_deauth_disassoc(sdata, req->bss->bssid,
IEEE80211_STYPE_DISASSOC, req->reason_code,
- cookie);
+ cookie, !req->local_state_change);
+ sta_info_destroy_addr(sdata, bssid);
ieee80211_recalc_idle(sdata->local);
return 0;
}
-int ieee80211_mgd_action(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_channel *chan,
- enum nl80211_channel_type channel_type,
- const u8 *buf, size_t len, u64 *cookie)
+void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
+ enum nl80211_cqm_rssi_threshold_event rssi_event,
+ gfp_t gfp)
{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct sk_buff *skb;
-
- /* Check that we are on the requested channel for transmission */
- if ((chan != local->tmp_channel ||
- channel_type != local->tmp_channel_type) &&
- (chan != local->oper_channel ||
- channel_type != local->oper_channel_type))
- return -EBUSY;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, local->hw.extra_tx_headroom);
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
- memcpy(skb_put(skb, len), buf, len);
+ trace_api_cqm_rssi_notify(sdata, rssi_event);
- if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
- IEEE80211_SKB_CB(skb)->flags |=
- IEEE80211_TX_INTFL_DONT_ENCRYPT;
- IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX |
- IEEE80211_TX_CTL_REQ_TX_STATUS;
- skb->dev = sdata->dev;
- ieee80211_tx_skb(sdata, skb);
-
- *cookie = (unsigned long) skb;
- return 0;
+ cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp);
}
+EXPORT_SYMBOL(ieee80211_cqm_rssi_notify);
projects / mv-sheeva.git / blobdiff