u16 ht_opmode;
bool enable_ht = true;
enum nl80211_channel_type prev_chantype;
- enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
+ enum nl80211_channel_type rx_channel_type = NL80211_CHAN_NO_HT;
+ enum nl80211_channel_type tx_channel_type;
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;
- if (enable_ht) {
- hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
- sband->band);
- /* check that channel matches the right operating channel */
- if (local->hw.conf.channel->center_freq != hti_cfreq) {
- /* Some APs mess this up, evidently.
- * Netgear WNDR3700 sometimes reports 4 higher than
- * the actual channel, for instance.
- */
- printk(KERN_DEBUG
- "%s: Wrong control channel in association"
- " response: configured center-freq: %d"
- " hti-cfreq: %d hti->control_chan: %d"
- " band: %d. Disabling HT.\n",
- sdata->name,
- local->hw.conf.channel->center_freq,
- hti_cfreq, hti->control_chan,
- sband->band);
- enable_ht = false;
- }
+ hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
+ sband->band);
+ /* check that channel matches the right operating channel */
+ if (local->hw.conf.channel->center_freq != hti_cfreq) {
+ /* Some APs mess this up, evidently.
+ * Netgear WNDR3700 sometimes reports 4 higher than
+ * the actual channel, for instance.
+ */
+ printk(KERN_DEBUG
+ "%s: Wrong control channel in association"
+ " response: configured center-freq: %d"
+ " hti-cfreq: %d hti->control_chan: %d"
+ " band: %d. Disabling HT.\n",
+ sdata->name,
+ local->hw.conf.channel->center_freq,
+ hti_cfreq, hti->control_chan,
+ sband->band);
+ enable_ht = false;
}
if (enable_ht) {
- channel_type = NL80211_CHAN_HT20;
+ rx_channel_type = NL80211_CHAN_HT20;
if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
!ieee80111_cfg_override_disables_ht40(sdata) &&
(hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
- if (!(local->hw.conf.channel->flags &
- IEEE80211_CHAN_NO_HT40PLUS))
- channel_type = NL80211_CHAN_HT40PLUS;
+ rx_channel_type = NL80211_CHAN_HT40PLUS;
break;
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
- if (!(local->hw.conf.channel->flags &
- IEEE80211_CHAN_NO_HT40MINUS))
- channel_type = NL80211_CHAN_HT40MINUS;
+ rx_channel_type = NL80211_CHAN_HT40MINUS;
break;
}
}
}
+ tx_channel_type = ieee80211_get_tx_channel_type(local, rx_channel_type);
+
if (local->tmp_channel)
- local->tmp_channel_type = channel_type;
+ local->tmp_channel_type = rx_channel_type;
- if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
+ if (!ieee80211_set_channel_type(local, sdata, rx_channel_type)) {
/* can only fail due to HT40+/- mismatch */
- channel_type = NL80211_CHAN_HT20;
- WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type));
+ rx_channel_type = NL80211_CHAN_HT20;
+ WARN_ON(!ieee80211_set_channel_type(local, sdata,
+ rx_channel_type));
}
- if (beacon_htcap_ie && (prev_chantype != channel_type)) {
+ if (beacon_htcap_ie && (prev_chantype != rx_channel_type)) {
/*
* Whenever the AP announces the HT mode change that can be
* 40MHz intolerant or etc., it would be safer to stop tx
/* channel_type change automatically detected */
ieee80211_hw_config(local, 0);
- if (prev_chantype != channel_type) {
+ if (prev_chantype != tx_channel_type) {
rcu_read_lock();
sta = sta_info_get(sdata, bssid);
if (sta)
rate_control_rate_update(local, sband, sta,
IEEE80211_RC_HT_CHANGED,
- channel_type);
+ tx_channel_type);
rcu_read_unlock();
if (beacon_htcap_ie)
/* if bss configuration changed store the new one */
if (sdata->ht_opmode_valid != enable_ht ||
sdata->vif.bss_conf.ht_operation_mode != ht_opmode ||
- prev_chantype != channel_type) {
+ prev_chantype != rx_channel_type) {
changed |= BSS_CHANGED_HT;
sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
sdata->ht_opmode_valid = enable_ht;
BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap));
- if (!sband->ht_cap.ht_supported)
- return;
-
if (!ht_info_ie)
return;
u16 capab;
struct ieee80211_supported_band *sband;
u32 rates = 0;
- struct ieee80211_bss *bss = (void *)assoc_data->bss->priv;
lockdep_assert_held(&ifmgd->mtx);
offset = noffset;
}
- if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N) &&
- bss->wmm_used && local->hw.queues >= 4)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_information_ie,
sband, local->oper_channel, ifmgd->ap_smps);
offset = noffset;
}
- if (assoc_data->wmm_used && local->hw.queues >= 4) {
- if (assoc_data->uapsd_used) {
- qos_info = local->uapsd_queues;
- qos_info |= (local->uapsd_max_sp_len <<
+ if (assoc_data->wmm) {
+ if (assoc_data->uapsd) {
+ qos_info = ifmgd->uapsd_queues;
+ qos_info |= (ifmgd->uapsd_max_sp_len <<
IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT);
} else {
qos_info = 0;
return;
if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
- uapsd_queues = local->uapsd_queues;
+ uapsd_queues = ifmgd->uapsd_queues;
count = wmm_param[6] & 0x0f;
if (count == ifmgd->wmm_last_param_set)
bss_info_changed |= BSS_CHANGED_ASSOC;
/* set timing information */
bss_conf->beacon_int = cbss->beacon_interval;
- bss_conf->timestamp = cbss->tsf;
+ bss_conf->last_tsf = cbss->tsf;
bss_info_changed |= BSS_CHANGED_BEACON_INT;
bss_info_changed |= ieee80211_handle_bss_capability(sdata,
bss_conf->dtim_period = 0;
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
- * changed or not.
- */
- bss_info_changed |= BSS_CHANGED_BASIC_RATES;
-
- /* And the BSSID changed - we're associated now */
- bss_info_changed |= BSS_CHANGED_BSSID;
/* Tell the driver to monitor connection quality (if supported) */
if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI &&
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- u32 changed = 0, config_changed = 0;
+ u32 changed = 0;
u8 bssid[ETH_ALEN];
ASSERT_MGD_MTX(ifmgd);
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
- /* channel(_type) changes are handled by ieee80211_hw_config */
- 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;
memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
if (local->hw.conf.flags & IEEE80211_CONF_PS) {
local->hw.conf.flags &= ~IEEE80211_CONF_PS;
- config_changed |= IEEE80211_CONF_CHANGE_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
}
local->ps_sdata = NULL;
- ieee80211_hw_config(local, config_changed);
-
/* Disable ARP filtering */
if (sdata->vif.bss_conf.arp_filter_enabled) {
sdata->vif.bss_conf.arp_filter_enabled = false;
changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
ieee80211_bss_info_change_notify(sdata, changed);
+ /* channel(_type) changes are handled by ieee80211_hw_config */
+ WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
+ ieee80211_hw_config(local, 0);
+
/* disassociated - set to defaults now */
ieee80211_set_wmm_default(sdata, false);
lockdep_assert_held(&sdata->u.mgd.mtx);
- if (auth_data->synced)
- drv_finish_tx_sync(sdata->local, sdata,
- auth_data->bss->bssid,
- IEEE80211_TX_SYNC_AUTH);
-
if (!assoc) {
sta_info_destroy_addr(sdata, auth_data->bss->bssid);
printk(KERN_DEBUG "%s: authenticated\n", sdata->name);
out:
- if (ifmgd->auth_data->synced)
- drv_finish_tx_sync(sdata->local, sdata, bssid,
- IEEE80211_TX_SYNC_AUTH);
- ifmgd->auth_data->synced = false;
ifmgd->auth_data->done = true;
ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC;
run_again(ifmgd, ifmgd->auth_data->timeout);
lockdep_assert_held(&sdata->u.mgd.mtx);
- if (assoc_data->synced)
- drv_finish_tx_sync(sdata->local, sdata,
- assoc_data->bss->bssid,
- IEEE80211_TX_SYNC_ASSOC);
-
if (!assoc) {
sta_info_destroy_addr(sdata, assoc_data->bss->bssid);
struct ieee80211_supported_band *sband;
struct sta_info *sta;
u8 *pos;
- u32 rates, basic_rates;
u16 capab_info, aid;
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u32 changed = 0;
int err;
- bool have_higher_than_11mbit = false;
u16 ap_ht_cap_flags;
- int min_rate = INT_MAX, min_rate_index = -1;
/* AssocResp and ReassocResp have identical structure */
return false;
}
- rates = 0;
- basic_rates = 0;
sband = local->hw.wiphy->bands[local->oper_channel->band];
- ieee80211_get_rates(sband, elems.supp_rates, elems.supp_rates_len,
- &rates, &basic_rates, &have_higher_than_11mbit,
- &min_rate, &min_rate_index);
-
- ieee80211_get_rates(sband, elems.ext_supp_rates,
- elems.ext_supp_rates_len, &rates, &basic_rates,
- &have_higher_than_11mbit,
- &min_rate, &min_rate_index);
-
- /*
- * some buggy APs don't advertise basic_rates. use the lowest
- * supported rate instead.
- */
- if (unlikely(!basic_rates) && min_rate_index >= 0) {
- printk(KERN_DEBUG "%s: No basic rates in AssocResp. "
- "Using min supported rate instead.\n", sdata->name);
- basic_rates = BIT(min_rate_index);
- }
-
- sta->sta.supp_rates[local->oper_channel->band] = rates;
- sdata->vif.bss_conf.basic_rates = basic_rates;
-
- /* cf. IEEE 802.11 9.2.12 */
- if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
changed |= BSS_CHANGED_QOS;
if (elems.ht_info_elem && elems.wmm_param &&
- (sdata->local->hw.queues >= 4) &&
!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
cbss->bssid, ap_ht_cap_flags,
} else {
printk(KERN_DEBUG "%s: associated\n", sdata->name);
- /* tell driver about sync done first */
- if (assoc_data->synced) {
- drv_finish_tx_sync(sdata->local, sdata,
- assoc_data->bss->bssid,
- IEEE80211_TX_SYNC_ASSOC);
- assoc_data->synced = false;
- }
-
if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) {
/* oops -- internal error -- send timeout for now */
ieee80211_destroy_assoc_data(sdata, true);
if (WARN_ON_ONCE(!auth_data))
return -EINVAL;
- if (!auth_data->synced) {
- int ret = drv_tx_sync(local, sdata, auth_data->bss->bssid,
- IEEE80211_TX_SYNC_AUTH);
- if (ret)
- return ret;
- }
- auth_data->synced = true;
-
auth_data->tries++;
if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) {
lockdep_assert_held(&sdata->u.mgd.mtx);
- if (!assoc_data->synced) {
- int ret = drv_tx_sync(local, sdata, assoc_data->bss->bssid,
- IEEE80211_TX_SYNC_ASSOC);
- if (ret)
- return ret;
- }
- assoc_data->synced = true;
-
assoc_data->tries++;
if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) {
printk(KERN_DEBUG "%s: association with %pM timed out\n",
ifmgd->flags = 0;
ifmgd->powersave = sdata->wdev.ps;
+ ifmgd->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
+ ifmgd->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
mutex_init(&ifmgd->mtx);
return 0;
}
+static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_bss *cbss, bool assoc)
+{
+ 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;
+ bool have_sta = false;
+ int err;
+
+ if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data))
+ return -EINVAL;
+
+ if (assoc) {
+ rcu_read_lock();
+ have_sta = sta_info_get(sdata, cbss->bssid);
+ rcu_read_unlock();
+ }
+
+ if (!have_sta) {
+ sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
+ if (!sta)
+ return -ENOMEM;
+ }
+
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(sdata->local);
+ mutex_unlock(&local->mtx);
+
+ /* switch to the right channel */
+ local->oper_channel = cbss->channel;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+ if (!have_sta) {
+ struct ieee80211_supported_band *sband;
+ u32 rates = 0, basic_rates = 0;
+ bool have_higher_than_11mbit;
+ int min_rate = INT_MAX, min_rate_index = -1;
+
+ sband = sdata->local->hw.wiphy->bands[cbss->channel->band];
+
+ ieee80211_get_rates(sband, bss->supp_rates,
+ bss->supp_rates_len,
+ &rates, &basic_rates,
+ &have_higher_than_11mbit,
+ &min_rate, &min_rate_index);
+
+ /*
+ * This used to be a workaround for basic rates missing
+ * in the association response frame. Now that we no
+ * longer use the basic rates from there, it probably
+ * doesn't happen any more, but keep the workaround so
+ * in case some *other* APs are buggy in different ways
+ * 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);
+ basic_rates = BIT(min_rate_index);
+ }
+
+ sta->sta.supp_rates[cbss->channel->band] = rates;
+ sdata->vif.bss_conf.basic_rates = basic_rates;
+
+ /* cf. IEEE 802.11 9.2.12 */
+ if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
+ have_higher_than_11mbit)
+ sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+ memcpy(ifmgd->bssid, cbss->bssid, ETH_ALEN);
+
+ /* tell driver about BSSID and basic rates */
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES);
+
+ if (assoc)
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+
+ 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);
+ return err;
+ }
+ } else
+ WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, cbss->bssid));
+
+ return 0;
+}
+
/* config hooks */
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
struct cfg80211_auth_request *req)
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_mgd_auth_data *auth_data;
- struct sta_info *sta;
u16 auth_alg;
int err;
printk(KERN_DEBUG "%s: authenticate with %pM\n",
sdata->name, req->bss->bssid);
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(sdata->local);
- mutex_unlock(&local->mtx);
-
- /* switch to the right channel */
- local->oper_channel = req->bss->channel;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-
- /* set BSSID */
- memcpy(ifmgd->bssid, req->bss->bssid, ETH_ALEN);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
-
- /* add station entry */
- sta = sta_info_alloc(sdata, req->bss->bssid, GFP_KERNEL);
- if (!sta) {
- err = -ENOMEM;
+ err = ieee80211_prep_connection(sdata, req->bss, false);
+ if (err)
goto err_clear;
- }
-
- err = sta_info_insert(sta);
- if (err) {
- printk(KERN_DEBUG
- "%s: failed to insert STA entry for the AP %pM (error %d)\n",
- sdata->name, req->bss->bssid, err);
- goto err_clear;
- }
err = ieee80211_probe_auth(sdata);
if (err) {
- if (auth_data->synced)
- drv_finish_tx_sync(local, sdata, req->bss->bssid,
- IEEE80211_TX_SYNC_AUTH);
sta_info_destroy_addr(sdata, req->bss->bssid);
goto err_clear;
}
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)req->bss->priv;
struct ieee80211_mgd_assoc_data *assoc_data;
- struct sta_info *sta;
+ struct ieee80211_supported_band *sband;
const u8 *ssidie;
int i, err;
ifmgd->beacon_crc_valid = false;
+ /*
+ * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode.
+ * We still associate in non-HT mode (11a/b/g) if any one of these
+ * ciphers is configured as pairwise.
+ * 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++)
if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 ||
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
if (req->flags & ASSOC_REQ_DISABLE_HT)
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+ /* 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 < 4 || !bss->wmm_used)
+ ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+
memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa));
memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask,
sizeof(ifmgd->ht_capa_mask));
} else
ifmgd->ap_smps = ifmgd->req_smps;
- /*
- * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode.
- * We still associate in non-HT mode (11a/b/g) if any one of these
- * ciphers is configured as pairwise.
- * We can set this to true for non-11n hardware, that'll be checked
- * separately along with the peer capabilities.
- */
assoc_data->capability = req->bss->capability;
- assoc_data->wmm_used = bss->wmm_used;
+ assoc_data->wmm = bss->wmm_used && (local->hw.queues >= 4);
assoc_data->supp_rates = bss->supp_rates;
assoc_data->supp_rates_len = bss->supp_rates_len;
assoc_data->ht_information_ie =
if (bss->wmm_used && bss->uapsd_supported &&
(sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
- assoc_data->uapsd_used = true;
+ assoc_data->uapsd = true;
ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
} else {
- assoc_data->uapsd_used = false;
+ assoc_data->uapsd = false;
ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED;
}
ifmgd->assoc_data = assoc_data;
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(sdata->local);
- mutex_unlock(&local->mtx);
-
- /* switch to the right channel */
- local->oper_channel = req->bss->channel;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-
- rcu_read_lock();
- sta = sta_info_get(sdata, req->bss->bssid);
- rcu_read_unlock();
-
- if (!sta) {
- /* set BSSID */
- memcpy(ifmgd->bssid, req->bss->bssid, ETH_ALEN);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
-
- sta = sta_info_alloc(sdata, req->bss->bssid, GFP_KERNEL);
- if (!sta) {
- err = -ENOMEM;
- goto err_clear;
- }
-
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
-
- 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);
- goto err_clear;
- }
- } else
- WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, req->bss->bssid));
+ err = ieee80211_prep_connection(sdata, req->bss, true);
+ if (err)
+ goto err_clear;
if (!bss->dtim_period &&
sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) {
projects / cascardo / linux.git / blobdiff