{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct cfg80211_chan_def vht_chandef;
+ struct ieee80211_sta_ht_cap sta_ht_cap;
u32 ht_cfreq, ret;
+ memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap));
+ ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap);
+
chandef->chan = channel;
chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
chandef->center_freq1 = channel->center_freq;
chandef->center_freq2 = 0;
- if (!ht_cap || !ht_oper || !sband->ht_cap.ht_supported) {
+ if (!ht_cap || !ht_oper || !sta_ht_cap.ht_supported) {
ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
goto out;
}
}
/* check 40 MHz support, if we have it */
- if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
+ if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
chandef->width = NL80211_CHAN_WIDTH_40;
sdata->csa_block_tx = false;
}
- cfg80211_ch_switch_notify(sdata->dev, &sdata->reserved_chandef);
-
sdata->vif.csa_active = false;
ifmgd->csa_waiting_bcn = false;
&ifmgd->csa_connection_drop_work);
return;
}
+
+ cfg80211_ch_switch_notify(sdata->dev, &sdata->reserved_chandef);
}
void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
if (!conf) {
sdata_info(sdata,
"no channel context assigned to vif?, disconnecting\n");
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- mutex_unlock(&local->chanctx_mtx);
- mutex_unlock(&local->mtx);
- return;
+ goto drop_connection;
}
chanctx = container_of(conf, struct ieee80211_chanctx, conf);
!(local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)) {
sdata_info(sdata,
"driver doesn't support chan-switch with channel contexts\n");
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- mutex_unlock(&local->chanctx_mtx);
- mutex_unlock(&local->mtx);
- return;
+ goto drop_connection;
}
ch_switch.timestamp = timestamp;
if (drv_pre_channel_switch(sdata, &ch_switch)) {
sdata_info(sdata,
"preparing for channel switch failed, disconnecting\n");
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- mutex_unlock(&local->chanctx_mtx);
- mutex_unlock(&local->mtx);
- return;
+ goto drop_connection;
}
res = ieee80211_vif_reserve_chanctx(sdata, &csa_ie.chandef,
sdata_info(sdata,
"failed to reserve channel context for channel switch, disconnecting (err=%d)\n",
res);
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- mutex_unlock(&local->chanctx_mtx);
- mutex_unlock(&local->mtx);
- return;
+ goto drop_connection;
}
mutex_unlock(&local->chanctx_mtx);
mod_timer(&ifmgd->chswitch_timer,
TU_TO_EXP_TIME((csa_ie.count - 1) *
cbss->beacon_interval));
+ return;
+ drop_connection:
+ ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
+ mutex_unlock(&local->chanctx_mtx);
+ mutex_unlock(&local->mtx);
}
static bool
country_ie_len -= 3;
}
- if (have_chan_pwr)
+ if (have_chan_pwr && pwr_constr_elem)
*pwr_reduction = *pwr_constr_elem;
+ else
+ *pwr_reduction = 0;
+
return have_chan_pwr;
}
int chan_pwr = 0, pwr_reduction_80211h = 0;
int pwr_level_cisco, pwr_level_80211h;
int new_ap_level;
+ __le16 capab = mgmt->u.probe_resp.capab_info;
- if (country_ie && pwr_constr_ie &&
- mgmt->u.probe_resp.capab_info &
- cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT)) {
+ if (country_ie &&
+ (capab & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT) ||
+ capab & cpu_to_le16(WLAN_CAPABILITY_RADIO_MEASURE))) {
has_80211h_pwr = ieee80211_find_80211h_pwr_constr(
sdata, channel, country_ie, country_ie_len,
pwr_constr_ie, &chan_pwr, &pwr_reduction_80211h);
} else {
ieee80211_send_nullfunc(local, sdata, 1);
/* Flush to get the tx status of nullfunc frame */
- ieee80211_flush_queues(local, sdata);
+ ieee80211_flush_queues(local, sdata, false);
}
}
{
struct ieee80211_local *local = (void *) data;
- if (local->quiescing || local->suspended)
- return;
-
ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work);
}
/* disable per-vif ps */
ieee80211_recalc_ps_vif(sdata);
- /* flush out any pending frame (e.g. DELBA) before deauth/disassoc */
+ /* make sure ongoing transmission finishes */
+ synchronize_net();
+
+ /*
+ * drop any frame before deauth/disassoc, this can be data or
+ * management frame. Since we are disconnecting, we should not
+ * insist sending these frames which can take time and delay
+ * the disconnection and possible the roaming.
+ */
if (tx)
- ieee80211_flush_queues(local, sdata);
+ ieee80211_flush_queues(local, sdata, true);
/* deauthenticate/disassociate now */
if (tx || frame_buf)
ieee80211_send_deauth_disassoc(sdata, ifmgd->bssid, stype,
reason, tx, frame_buf);
- /* flush out frame */
+ /* flush out frame - make sure the deauth was actually sent */
if (tx)
- ieee80211_flush_queues(local, sdata);
+ ieee80211_flush_queues(local, sdata, false);
/* clear bssid only after building the needed mgmt frames */
memset(ifmgd->bssid, 0, ETH_ALEN);
sdata_assert_lock(sdata);
if (!assoc) {
+ /*
+ * we are not authenticated yet, the only timer that could be
+ * running is the timeout for the authentication response which
+ * which is not relevant anymore.
+ */
+ del_timer_sync(&sdata->u.mgd.timer);
sta_info_destroy_addr(sdata, auth_data->bss->bssid);
memset(sdata->u.mgd.bssid, 0, ETH_ALEN);
sdata_assert_lock(sdata);
if (!assoc) {
+ /*
+ * we are not associated yet, the only timer that could be
+ * running is the timeout for the association response which
+ * which is not relevant anymore.
+ */
+ del_timer_sync(&sdata->u.mgd.timer);
sta_info_destroy_addr(sdata, assoc_data->bss->bssid);
memset(sdata->u.mgd.bssid, 0, ETH_ALEN);
rate_control_rate_init(sta);
- if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
+ if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) {
set_sta_flag(sta, WLAN_STA_MFP);
+ sta->sta.mfp = true;
+ } else {
+ sta->sta.mfp = false;
+ }
sta->sta.wme = elems.wmm_param;
if (ifmgd->csa_waiting_bcn)
ieee80211_chswitch_post_beacon(sdata);
+ /*
+ * Update beacon timing and dtim count on every beacon appearance. This
+ * will allow the driver to use the most updated values. Do it before
+ * comparing this one with last received beacon.
+ * IMPORTANT: These parameters would possibly be out of sync by the time
+ * the driver will use them. The synchronized view is currently
+ * guaranteed only in certain callbacks.
+ */
+ if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) {
+ sdata->vif.bss_conf.sync_tsf =
+ le64_to_cpu(mgmt->u.beacon.timestamp);
+ sdata->vif.bss_conf.sync_device_ts =
+ rx_status->device_timestamp;
+ if (elems.tim)
+ sdata->vif.bss_conf.sync_dtim_count =
+ elems.tim->dtim_count;
+ else
+ sdata->vif.bss_conf.sync_dtim_count = 0;
+ }
+
if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
return;
ifmgd->beacon_crc = ncrc;
else
bss_conf->dtim_period = 1;
- if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) {
- sdata->vif.bss_conf.sync_tsf =
- le64_to_cpu(mgmt->u.beacon.timestamp);
- sdata->vif.bss_conf.sync_device_ts =
- rx_status->device_timestamp;
- if (elems.tim)
- sdata->vif.bss_conf.sync_dtim_count =
- elems.tim->dtim_count;
- else
- sdata->vif.bss_conf.sync_dtim_count = 0;
- }
-
changed |= BSS_CHANGED_BEACON_INFO;
ifmgd->have_beacon = true;
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
- struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- if (local->quiescing)
- return;
-
if (sdata->vif.csa_active && !ifmgd->csa_waiting_bcn)
return;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
- if (local->quiescing)
- return;
-
if (sdata->vif.csa_active && !ifmgd->csa_waiting_bcn)
return;
IEEE80211_DEAUTH_FRAME_LEN);
}
+ /* This is a bit of a hack - we should find a better and more generic
+ * solution to this. Normally when suspending, cfg80211 will in fact
+ * deauthenticate. However, it doesn't (and cannot) stop an ongoing
+ * auth (not so important) or assoc (this is the problem) process.
+ *
+ * As a consequence, it can happen that we are in the process of both
+ * associating and suspending, and receive an association response
+ * after cfg80211 has checked if it needs to disconnect, but before
+ * we actually set the flag to drop incoming frames. This will then
+ * cause the workqueue flush to process the association response in
+ * the suspend, resulting in a successful association just before it
+ * tries to remove the interface from the driver, which now though
+ * has a channel context assigned ... this results in issues.
+ *
+ * To work around this (for now) simply deauth here again if we're
+ * now connected.
+ */
+ if (ifmgd->associated && !sdata->local->wowlan) {
+ u8 bssid[ETH_ALEN];
+ struct cfg80211_deauth_request req = {
+ .reason_code = WLAN_REASON_DEAUTH_LEAVING,
+ .bssid = bssid,
+ };
+
+ memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
+ ieee80211_mgd_deauth(sdata, &req);
+ }
+
sdata_unlock(sdata);
}
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)cbss->priv;
struct sta_info *new_sta = NULL;
- bool have_sta = false;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_sta_ht_cap sta_ht_cap;
+ bool have_sta = false, is_override = false;
int err;
+ sband = local->hw.wiphy->bands[cbss->channel->band];
+
if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data))
return -EINVAL;
if (!new_sta)
return -ENOMEM;
}
+
+ memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap));
+ ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap);
+
+ is_override = (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) !=
+ (sband->ht_cap.cap &
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+
+ if (new_sta || is_override) {
+ err = ieee80211_prep_channel(sdata, cbss);
+ if (err) {
+ if (new_sta)
+ sta_info_free(local, new_sta);
+ return -EINVAL;
+ }
+ }
+
if (new_sta) {
u32 rates = 0, basic_rates = 0;
bool have_higher_than_11mbit;
int min_rate = INT_MAX, min_rate_index = -1;
struct ieee80211_chanctx_conf *chanctx_conf;
- struct ieee80211_supported_band *sband;
const struct cfg80211_bss_ies *ies;
- int shift;
+ int shift = ieee80211_vif_get_shift(&sdata->vif);
u32 rate_flags;
- sband = local->hw.wiphy->bands[cbss->channel->band];
-
- err = ieee80211_prep_channel(sdata, cbss);
- if (err) {
- sta_info_free(local, new_sta);
- return -EINVAL;
- }
- shift = ieee80211_vif_get_shift(&sdata->vif);
-
rcu_read_lock();
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
if (WARN_ON(!chanctx_conf)) {
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
rcu_read_unlock();
+ if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) &&
+ (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK),
+ "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"))
+ sdata->vif.driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
+
if (bss->wmm_used && bss->uapsd_supported &&
- (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
+ (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD)) {
assoc_data->uapsd = true;
ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
} else {
git.openpandora.org / pandora-kernel.git / blobdiff