#include <linux/etherdevice.h>
#include <linux/moduleparam.h>
#include <linux/rtnetlink.h>
-#include <linux/pm_qos.h>
#include <linux/crc32.h>
#include <linux/slab.h>
#include <linux/export.h>
}
/* need to hold RTNL or interface lock */
-void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
+void ieee80211_recalc_ps(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata, *found = NULL;
int count = 0;
}
if (count == 1 && ieee80211_powersave_allowed(found)) {
+ u8 dtimper = found->u.mgd.dtim_period;
s32 beaconint_us;
- if (latency < 0)
- 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 2000 second value is there for compatibility
- * until the PM_QOS_NETWORK_LATENCY is configured
- * with real values.
- */
- if (latency > (1900 * USEC_PER_MSEC) &&
- latency != (2000 * USEC_PER_SEC))
- timeout = 0;
- else
- timeout = 100;
- }
+ if (timeout < 0)
+ timeout = 100;
local->hw.conf.dynamic_ps_timeout = timeout;
- if (beaconint_us > latency) {
- local->ps_sdata = NULL;
- } else {
- int maxslp = 1;
- u8 dtimper = found->u.mgd.dtim_period;
-
- /* If the TIM IE is invalid, pretend the value is 1 */
- if (!dtimper)
- dtimper = 1;
- else if (dtimper > 1)
- maxslp = min_t(int, dtimper,
- latency / beaconint_us);
-
- local->hw.conf.max_sleep_period = maxslp;
- local->hw.conf.ps_dtim_period = dtimper;
- local->ps_sdata = found;
- }
+ /* If the TIM IE is invalid, pretend the value is 1 */
+ if (!dtimper)
+ dtimper = 1;
+
+ local->hw.conf.ps_dtim_period = dtimper;
+ local->ps_sdata = found;
} else {
local->ps_sdata = NULL;
}
struct ieee80211_sub_if_data *sdata,
const u8 *wmm_param, size_t wmm_param_len)
{
- struct ieee80211_tx_queue_params params;
+ struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS];
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
size_t left;
- int count;
+ int count, ac;
const u8 *pos;
u8 uapsd_queues = 0;
int aci = (pos[0] >> 5) & 0x03;
int acm = (pos[0] >> 4) & 0x01;
bool uapsd = false;
- int queue;
switch (aci) {
case 1: /* AC_BK */
- queue = 3;
+ ac = IEEE80211_AC_BK;
if (acm)
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;
+ ac = IEEE80211_AC_VI;
if (acm)
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;
+ ac = IEEE80211_AC_VO;
if (acm)
sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
break;
case 0: /* AC_BE */
default:
- queue = 2;
+ ac = IEEE80211_AC_BE;
if (acm)
sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
break;
}
- params.aifs = pos[0] & 0x0f;
- params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
- params.cw_min = ecw2cw(pos[1] & 0x0f);
- params.txop = get_unaligned_le16(pos + 2);
- params.acm = acm;
- params.uapsd = uapsd;
+ params[ac].aifs = pos[0] & 0x0f;
+
+ if (params[ac].aifs < 2) {
+ sdata_info(sdata,
+ "AP has invalid WMM params (AIFSN=%d for ACI %d), will use 2\n",
+ params[ac].aifs, aci);
+ params[ac].aifs = 2;
+ }
+ params[ac].cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
+ params[ac].cw_min = ecw2cw(pos[1] & 0x0f);
+ params[ac].txop = get_unaligned_le16(pos + 2);
+ params[ac].acm = acm;
+ params[ac].uapsd = uapsd;
+ if (params[ac].cw_min > params[ac].cw_max) {
+ sdata_info(sdata,
+ "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n",
+ params[ac].cw_min, params[ac].cw_max, aci);
+ return false;
+ }
+ }
+
+ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
mlme_dbg(sdata,
- "WMM queue=%d aci=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n",
- queue, aci, acm,
- params.aifs, params.cw_min, params.cw_max,
- params.txop, params.uapsd,
- ifmgd->tx_tspec[queue].downgraded);
- sdata->tx_conf[queue] = params;
- if (!ifmgd->tx_tspec[queue].downgraded &&
- drv_conf_tx(local, sdata, queue, ¶ms))
+ "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n",
+ ac, params[ac].acm,
+ params[ac].aifs, params[ac].cw_min, params[ac].cw_max,
+ params[ac].txop, params[ac].uapsd,
+ ifmgd->tx_tspec[ac].downgraded);
+ sdata->tx_conf[ac] = params[ac];
+ if (!ifmgd->tx_tspec[ac].downgraded &&
+ drv_conf_tx(local, sdata, ac, ¶ms[ac]))
sdata_err(sdata,
- "failed to set TX queue parameters for queue %d\n",
- queue);
+ "failed to set TX queue parameters for AC %d\n",
+ ac);
}
/* enable WMM or activate new settings */
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, -1);
+ ieee80211_recalc_ps(local);
mutex_unlock(&local->iflist_mtx);
ieee80211_recalc_smps(sdata);
ieee80211_bss_info_change_notify(sdata, changed);
/* disassociated - set to defaults now */
- ieee80211_set_wmm_default(sdata, false);
+ ieee80211_set_wmm_default(sdata, false, false);
del_timer_sync(&sdata->u.mgd.conn_mon_timer);
del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
__ieee80211_stop_poll(sdata);
mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, -1);
+ ieee80211_recalc_ps(local);
mutex_unlock(&local->iflist_mtx);
if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR))
goto out;
mutex_lock(&sdata->local->iflist_mtx);
- ieee80211_recalc_ps(sdata->local, -1);
+ ieee80211_recalc_ps(sdata->local);
mutex_unlock(&sdata->local->iflist_mtx);
ifmgd->probe_send_count = 0;
container_of(work, struct ieee80211_sub_if_data,
u.mgd.beacon_connection_loss_work);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct sta_info *sta;
- if (ifmgd->associated) {
- rcu_read_lock();
- sta = sta_info_get(sdata, ifmgd->bssid);
- if (sta)
- sta->beacon_loss_count++;
- rcu_read_unlock();
- }
+ if (ifmgd->associated)
+ ifmgd->beacon_loss_count++;
if (ifmgd->connection_loss) {
sdata_info(sdata, "Connection to AP %pM lost\n",
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 && local->hw.queues >= IEEE80211_NUM_ACS;
*/
ifmgd->wmm_last_param_set = -1;
- if (!(ifmgd->flags & IEEE80211_STA_DISABLE_WMM) && elems.wmm_param)
- ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
- elems.wmm_param_len);
- else
- ieee80211_set_wmm_default(sdata, false);
+ if (ifmgd->flags & IEEE80211_STA_DISABLE_WMM) {
+ ieee80211_set_wmm_default(sdata, false, false);
+ } else if (!ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
+ elems.wmm_param_len)) {
+ /* still enable QoS since we might have HT/VHT */
+ ieee80211_set_wmm_default(sdata, false, true);
+ /* set the disable-WMM flag in this case to disable
+ * tracking WMM parameter changes in the beacon if
+ * the parameters weren't actually valid. Doing so
+ * avoids changing parameters very strangely when
+ * the AP is going back and forth between valid and
+ * invalid parameters.
+ */
+ ifmgd->flags |= IEEE80211_STA_DISABLE_WMM;
+ }
changed |= BSS_CHANGED_QOS;
/* set AID and assoc capability,
ifmgd->have_beacon = true;
mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, -1);
+ ieee80211_recalc_ps(local);
mutex_unlock(&local->iflist_mtx);
ieee80211_recalc_ps_vif(sdata);
rcu_read_unlock();
}
-int ieee80211_max_network_latency(struct notifier_block *nb,
- unsigned long data, void *dummy)
-{
- s32 latency_usec = (s32) data;
- struct ieee80211_local *local =
- container_of(nb, struct ieee80211_local,
- network_latency_notifier);
-
- mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, latency_usec);
- mutex_unlock(&local->iflist_mtx);
-
- return NOTIFY_OK;
-}
-
static u8 ieee80211_ht_vht_rx_chains(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss)
{
return err;
}
-static bool ieee80211_usable_wmm_params(struct ieee80211_sub_if_data *sdata,
- const u8 *wmm_param, int len)
-{
- const u8 *pos;
- size_t left;
-
- if (len < 8)
- return false;
-
- if (wmm_param[5] != 1 /* version */)
- return false;
-
- pos = wmm_param + 8;
- left = len - 8;
-
- for (; left >= 4; left -= 4, pos += 4) {
- u8 aifsn = pos[0] & 0x0f;
- u8 ecwmin = pos[1] & 0x0f;
- u8 ecwmax = (pos[1] & 0xf0) >> 4;
- int aci = (pos[0] >> 5) & 0x03;
-
- if (aifsn < 2) {
- sdata_info(sdata,
- "AP has invalid WMM params (AIFSN=%d for ACI %d), disabling WMM\n",
- aifsn, aci);
- return false;
- }
- if (ecwmin > ecwmax) {
- sdata_info(sdata,
- "AP has invalid WMM params (ECWmin/max=%d/%d for ACI %d), disabling WMM\n",
- ecwmin, ecwmax, aci);
- return false;
- }
- }
-
- return true;
-}
-
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_assoc_request *req)
{
assoc_data->wmm = bss->wmm_used &&
(local->hw.queues >= IEEE80211_NUM_ACS);
- if (assoc_data->wmm) {
- /* try to check validity of WMM params IE */
- const struct cfg80211_bss_ies *ies;
- const u8 *wp, *start, *end;
-
- rcu_read_lock();
- ies = rcu_dereference(req->bss->ies);
- start = ies->data;
- end = start + ies->len;
-
- while (true) {
- wp = cfg80211_find_vendor_ie(
- WLAN_OUI_MICROSOFT,
- WLAN_OUI_TYPE_MICROSOFT_WMM,
- start, end - start);
- if (!wp)
- break;
- start = wp + wp[1] + 2;
- /* if this IE is too short, try the next */
- if (wp[1] <= 4)
- continue;
- /* if this IE is WMM params, we found what we wanted */
- if (wp[6] == 1)
- break;
- }
-
- if (!wp || !ieee80211_usable_wmm_params(sdata, wp + 2,
- wp[1] - 2)) {
- assoc_data->wmm = false;
- ifmgd->flags |= IEEE80211_STA_DISABLE_WMM;
- }
- rcu_read_unlock();
- }
/*
* IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode.
return 0;
}
+ if (ifmgd->assoc_data &&
+ ether_addr_equal(ifmgd->assoc_data->bss->bssid, req->bssid)) {
+ sdata_info(sdata,
+ "aborting association with %pM by local choice (Reason: %u=%s)\n",
+ req->bssid, req->reason_code,
+ ieee80211_get_reason_code_string(req->reason_code));
+
+ drv_mgd_prepare_tx(sdata->local, sdata);
+ ieee80211_send_deauth_disassoc(sdata, req->bssid,
+ IEEE80211_STYPE_DEAUTH,
+ req->reason_code, tx,
+ frame_buf);
+ ieee80211_destroy_assoc_data(sdata, false);
+ ieee80211_report_disconnect(sdata, frame_buf,
+ sizeof(frame_buf), true,
+ req->reason_code);
+ return 0;
+ }
+
if (ifmgd->associated &&
ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
sdata_info(sdata,
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