#include "rate.h"
#include "led.h"
-#define IEEE80211_ASSOC_SCANS_MAX_TRIES 2
-#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
-#define IEEE80211_AUTH_MAX_TRIES 3
-#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
-#define IEEE80211_ASSOC_MAX_TRIES 3
-#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_PROBE_WAIT (HZ / 20)
-#define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
-#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
+#define IEEE80211_MAX_PROBE_TRIES 5
+
+/*
+ * beacon loss detection timeout
+ * XXX: should depend on beacon interval
+ */
+#define IEEE80211_BEACON_LOSS_TIME (2 * HZ)
+/*
+ * Time the connection can be idle before we probe
+ * it to see if we can still talk to the AP.
+ */
+#define IEEE80211_CONNECTION_IDLE_TIME (30 * HZ)
+/*
+ * Time we wait for a probe response after sending
+ * a probe request because of beacon loss or for
+ * checking the connection still works.
+ */
+#define IEEE80211_PROBE_WAIT (HZ / 2)
#define TMR_RUNNING_TIMER 0
#define TMR_RUNNING_CHANSW 1
+/*
+ * All cfg80211 functions have to be called outside a locked
+ * section so that they can acquire a lock themselves... This
+ * is much simpler than queuing up things in cfg80211, but we
+ * do need some indirection for that here.
+ */
+enum rx_mgmt_action {
+ /* no action required */
+ RX_MGMT_NONE,
+
+ /* caller must call cfg80211_send_rx_auth() */
+ RX_MGMT_CFG80211_AUTH,
+
+ /* caller must call cfg80211_send_rx_assoc() */
+ RX_MGMT_CFG80211_ASSOC,
+
+ /* caller must call cfg80211_send_deauth() */
+ RX_MGMT_CFG80211_DEAUTH,
+
+ /* caller must call cfg80211_send_disassoc() */
+ RX_MGMT_CFG80211_DISASSOC,
+
+ /* caller must tell cfg80211 about internal error */
+ RX_MGMT_CFG80211_ASSOC_ERROR,
+};
+
/* utils */
-static int ecw2cw(int ecw)
+static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
{
- return (1 << ecw) - 1;
+ WARN_ON(!mutex_is_locked(&ifmgd->mtx));
}
-static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie)
+/*
+ * 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_if_managed *ifmgd,
+ unsigned long timeout)
{
- u8 *end, *pos;
-
- pos = bss->cbss.information_elements;
- if (pos == NULL)
- return NULL;
- end = pos + bss->cbss.len_information_elements;
+ ASSERT_MGD_MTX(ifmgd);
- while (pos + 1 < end) {
- if (pos + 2 + pos[1] > end)
- break;
- if (pos[0] == ie)
- return pos;
- pos += 2 + pos[1];
- }
-
- return NULL;
+ if (!timer_pending(&ifmgd->timer) ||
+ time_before(timeout, ifmgd->timer.expires))
+ mod_timer(&ifmgd->timer, timeout);
}
-static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
- struct ieee80211_supported_band *sband,
- u32 *rates)
+static void mod_beacon_timer(struct ieee80211_sub_if_data *sdata)
{
- int i, j, count;
- *rates = 0;
- count = 0;
- for (i = 0; i < bss->supp_rates_len; i++) {
- int rate = (bss->supp_rates[i] & 0x7F) * 5;
+ if (sdata->local->hw.flags & IEEE80211_HW_BEACON_FILTER)
+ return;
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == rate) {
- *rates |= BIT(j);
- count++;
- break;
- }
- }
+ mod_timer(&sdata->u.mgd.bcn_mon_timer,
+ round_jiffies_up(jiffies + IEEE80211_BEACON_LOSS_TIME));
+}
- return count;
+static int ecw2cw(int ecw)
+{
+ return (1 << ecw) - 1;
}
/*
*/
static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
struct ieee80211_ht_info *hti,
- u16 ap_ht_cap_flags)
+ const u8 *bssid, u16 ap_ht_cap_flags)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sta_info *sta;
u32 changed = 0;
u16 ht_opmode;
ieee80211_hw_config(local, 0);
rcu_read_lock();
-
- sta = sta_info_get(local, ifmgd->bssid);
+ sta = sta_info_get(sdata, bssid);
if (sta)
rate_control_rate_update(local, sband, sta,
IEEE80211_RC_HT_CHANGED);
-
rcu_read_unlock();
}
/* frame sending functions */
-static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies, *ht_ie;
- int i, len, count, rates_len, supp_rates_len;
- u16 capab;
- struct ieee80211_bss *bss;
- int wmm = 0;
- struct ieee80211_supported_band *sband;
- u32 rates = 0;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
- ifmgd->ssid_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
- "frame\n", sdata->dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- capab = ifmgd->capab;
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
- if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
- capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
- if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
- capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
- }
-
- bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
- local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- if (bss) {
- if (bss->cbss.capability & WLAN_CAPABILITY_PRIVACY)
- capab |= WLAN_CAPABILITY_PRIVACY;
- if (bss->wmm_used)
- wmm = 1;
-
- /* get all rates supported by the device and the AP as
- * some APs don't like getting a superset of their rates
- * in the association request (e.g. D-Link DAP 1353 in
- * b-only mode) */
- rates_len = ieee80211_compatible_rates(bss, sband, &rates);
-
- if ((bss->cbss.capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
- (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
- capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
-
- ieee80211_rx_bss_put(local, bss);
- } else {
- rates = ~0;
- rates_len = sband->n_bitrates;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
- memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN);
-
- if (ifmgd->flags & IEEE80211_STA_PREV_BSSID_SET) {
- skb_put(skb, 10);
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_REASSOC_REQ);
- mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval =
- cpu_to_le16(local->hw.conf.listen_interval);
- memcpy(mgmt->u.reassoc_req.current_ap, ifmgd->prev_bssid,
- ETH_ALEN);
- } else {
- skb_put(skb, 4);
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_ASSOC_REQ);
- mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.assoc_req.listen_interval =
- cpu_to_le16(local->hw.conf.listen_interval);
- }
-
- /* SSID */
- ies = pos = skb_put(skb, 2 + ifmgd->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifmgd->ssid_len;
- memcpy(pos, ifmgd->ssid, ifmgd->ssid_len);
-
- /* add all rates which were marked to be used above */
- supp_rates_len = rates_len;
- if (supp_rates_len > 8)
- supp_rates_len = 8;
-
- len = sband->n_bitrates;
- pos = skb_put(skb, supp_rates_len + 2);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = supp_rates_len;
-
- count = 0;
- for (i = 0; i < sband->n_bitrates; i++) {
- if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- if (++count == 8)
- break;
- }
- }
-
- if (rates_len > count) {
- pos = skb_put(skb, rates_len - count + 2);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates_len - count;
-
- for (i++; i < sband->n_bitrates; i++) {
- if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
- }
- }
-
- if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) {
- /* 1. power capabilities */
- pos = skb_put(skb, 4);
- *pos++ = WLAN_EID_PWR_CAPABILITY;
- *pos++ = 2;
- *pos++ = 0; /* min tx power */
- *pos++ = local->hw.conf.channel->max_power; /* max tx power */
-
- /* 2. supported channels */
- /* TODO: get this in reg domain format */
- pos = skb_put(skb, 2 * sband->n_channels + 2);
- *pos++ = WLAN_EID_SUPPORTED_CHANNELS;
- *pos++ = 2 * sband->n_channels;
- for (i = 0; i < sband->n_channels; i++) {
- *pos++ = ieee80211_frequency_to_channel(
- sband->channels[i].center_freq);
- *pos++ = 1; /* one channel in the subband*/
- }
- }
-
- if (ifmgd->extra_ie) {
- pos = skb_put(skb, ifmgd->extra_ie_len);
- memcpy(pos, ifmgd->extra_ie, ifmgd->extra_ie_len);
- }
-
- if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED)) {
- pos = skb_put(skb, 9);
- *pos++ = WLAN_EID_VENDOR_SPECIFIC;
- *pos++ = 7; /* len */
- *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
- *pos++ = 0x50;
- *pos++ = 0xf2;
- *pos++ = 2; /* WME */
- *pos++ = 0; /* WME info */
- *pos++ = 1; /* WME ver */
- *pos++ = 0;
- }
-
- /* wmm support is a must to HT */
- /*
- * 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.
- */
- if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
- sband->ht_cap.ht_supported &&
- (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) &&
- ht_ie[1] >= sizeof(struct ieee80211_ht_info) &&
- (!(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))) {
- struct ieee80211_ht_info *ht_info =
- (struct ieee80211_ht_info *)(ht_ie + 2);
- u16 cap = sband->ht_cap.cap;
- __le16 tmp;
- u32 flags = local->hw.conf.channel->flags;
-
- switch (ht_info->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;
- cap &= ~IEEE80211_HT_CAP_SGI_40;
- }
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
- if (flags & IEEE80211_CHAN_NO_HT40MINUS) {
- cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
- cap &= ~IEEE80211_HT_CAP_SGI_40;
- }
- break;
- }
-
- tmp = cpu_to_le16(cap);
- pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2);
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_cap);
- memset(pos, 0, sizeof(struct ieee80211_ht_cap));
- memcpy(pos, &tmp, sizeof(u16));
- pos += sizeof(u16);
- /* TODO: needs a define here for << 2 */
- *pos++ = sband->ht_cap.ampdu_factor |
- (sband->ht_cap.ampdu_density << 2);
- memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
- }
-
- kfree(ifmgd->assocreq_ies);
- ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL);
- if (ifmgd->assocreq_ies)
- memcpy(ifmgd->assocreq_ies, ies, ifmgd->assocreq_ies_len);
-
- ieee80211_tx_skb(sdata, skb, 0);
-}
-
-
static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
- u16 stype, u16 reason)
+ const u8 *bssid, u16 stype, u16 reason,
+ void *cookie)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for "
- "deauth/disassoc frame\n", sdata->dev->name);
+ "deauth/disassoc frame\n", sdata->name);
return;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
- memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN);
+ memcpy(mgmt->da, bssid, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+ memcpy(mgmt->bssid, bssid, ETH_ALEN);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
skb_put(skb, 2);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
if (stype == IEEE80211_STYPE_DEAUTH)
- cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len);
+ if (cookie)
+ __cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
+ else
+ cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
else
- cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len);
- ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
+ if (cookie)
+ __cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
+ else
+ 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);
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_pspoll *pspoll;
struct sk_buff *skb;
- u16 fc;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*pspoll));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for "
- "pspoll frame\n", sdata->dev->name);
+ skb = ieee80211_pspoll_get(&local->hw, &sdata->vif);
+ if (!skb)
return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- pspoll = (struct ieee80211_pspoll *) skb_put(skb, sizeof(*pspoll));
- memset(pspoll, 0, sizeof(*pspoll));
- fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL | IEEE80211_FCTL_PM;
- pspoll->frame_control = cpu_to_le16(fc);
- pspoll->aid = cpu_to_le16(ifmgd->aid);
- /* aid in PS-Poll has its two MSBs each set to 1 */
- pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
+ pspoll = (struct ieee80211_pspoll *) skb->data;
+ pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
- memcpy(pspoll->bssid, ifmgd->bssid, ETH_ALEN);
- memcpy(pspoll->ta, sdata->dev->dev_addr, ETH_ALEN);
-
- ieee80211_tx_skb(sdata, skb, 0);
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ ieee80211_tx_skb(sdata, skb);
}
void ieee80211_send_nullfunc(struct ieee80211_local *local,
int powersave)
{
struct sk_buff *skb;
+ struct ieee80211_hdr_3addr *nullfunc;
+
+ skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif);
+ if (!skb)
+ return;
+
+ nullfunc = (struct ieee80211_hdr_3addr *) skb->data;
+ if (powersave)
+ nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
+
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ ieee80211_tx_skb(sdata, skb);
+}
+
+static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ struct sk_buff *skb;
struct ieee80211_hdr *nullfunc;
__le16 fc;
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
- "frame\n", sdata->dev->name);
+ printk(KERN_DEBUG "%s: failed to allocate buffer for 4addr "
+ "nullfunc frame\n", sdata->name);
return;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
- nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
- memset(nullfunc, 0, 24);
+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
+ memset(nullfunc, 0, 30);
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
- IEEE80211_FCTL_TODS);
- if (powersave)
- fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+ IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
nullfunc->frame_control = fc;
memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN);
- ieee80211_tx_skb(sdata, skb, 0);
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ ieee80211_tx_skb(sdata, skb);
}
/* spectrum management related things */
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
- struct ieee80211_bss *bss;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- if (!netif_running(sdata->dev))
+ if (!ieee80211_sdata_running(sdata))
return;
- bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- if (!bss)
- goto exit;
+ mutex_lock(&ifmgd->mtx);
+ if (!ifmgd->associated)
+ goto out;
sdata->local->oper_channel = sdata->local->csa_channel;
+ ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL);
+
/* XXX: shouldn't really modify cfg80211-owned data! */
- if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
- bss->cbss.channel = sdata->local->oper_channel;
+ ifmgd->associated->channel = sdata->local->oper_channel;
- ieee80211_rx_bss_put(sdata->local, bss);
-exit:
- ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
+ out:
+ ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+ mutex_unlock(&ifmgd->mtx);
}
static void ieee80211_chswitch_timer(unsigned long data)
return;
}
- queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+ ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
}
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel_sw_ie *sw_elem,
struct ieee80211_bss *bss)
{
+ struct cfg80211_bss *cbss =
+ container_of((void *)bss, struct cfg80211_bss, priv);
struct ieee80211_channel *new_ch;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
- if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
+ ASSERT_MGD_MTX(ifmgd);
+
+ if (!ifmgd->associated)
return;
- if (sdata->local->sw_scanning || sdata->local->hw_scanning)
+ if (sdata->local->scanning)
return;
/* Disregard subsequent beacons if we are already running a timer
sdata->local->csa_channel = new_ch;
if (sw_elem->count <= 1) {
- queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+ ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
} else {
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
mod_timer(&ifmgd->chswitch_timer,
jiffies +
msecs_to_jiffies(sw_elem->count *
- bss->cbss.beacon_interval));
+ cbss->beacon_interval));
}
}
* If we are scanning right now then the parameters will
* take effect when scan finishes.
*/
- if (local->hw_scanning || local->sw_scanning)
+ if (local->scanning)
return;
if (conf->dynamic_ps_timeout > 0 &&
struct ieee80211_conf *conf = &local->hw.conf;
if (local->ps_sdata) {
- if (!(local->ps_sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
- return;
-
ieee80211_enable_ps(local, local->ps_sdata);
} else if (conf->flags & IEEE80211_CONF_PS) {
conf->flags &= ~IEEE80211_CONF_PS;
return;
}
+ if (!list_empty(&local->work_list)) {
+ local->ps_sdata = NULL;
+ goto change;
+ }
+
list_for_each_entry(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
+ if (!ieee80211_sdata_running(sdata))
continue;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
count++;
}
- if (count == 1 && found->u.mgd.powersave) {
+ if (count == 1 && found->u.mgd.powersave &&
+ found->u.mgd.associated &&
+ found->u.mgd.associated->beacon_ies &&
+ !(found->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL))) {
s32 beaconint_us;
if (latency < 0)
if (beaconint_us > latency) {
local->ps_sdata = NULL;
} else {
- u8 dtimper = found->vif.bss_conf.dtim_period;
+ struct ieee80211_bss *bss;
int maxslp = 1;
+ u8 dtimper;
+
+ bss = (void *)found->u.mgd.associated->priv;
+ dtimper = bss->dtim_period;
- if (dtimper > 1)
+ /* 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;
}
} else {
local->ps_sdata = NULL;
}
+ change:
ieee80211_change_ps(local);
}
{
struct ieee80211_local *local = (void *) data;
- if (local->quiescing)
+ if (local->quiescing || local->suspended)
return;
- queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
+ ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work);
}
/* MLME */
struct ieee80211_tx_queue_params params;
size_t left;
int count;
- u8 *pos;
+ u8 *pos, uapsd_queues = 0;
- if (!(ifmgd->flags & IEEE80211_STA_WMM_ENABLED))
+ if (local->hw.queues < 4)
return;
if (!wmm_param)
if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
return;
+
+ if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
+ uapsd_queues = local->uapsd_queues;
+
count = wmm_param[6] & 0x0f;
if (count == ifmgd->wmm_last_param_set)
return;
for (; left >= 4; left -= 4, pos += 4) {
int aci = (pos[0] >> 5) & 0x03;
int acm = (pos[0] >> 4) & 0x01;
+ bool uapsd = false;
int queue;
switch (aci) {
queue = 3;
if (acm)
local->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 */
+ 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 */
+ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+ uapsd = true;
break;
case 0: /* AC_BE */
default:
queue = 2;
if (acm)
local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
+ if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
+ uapsd = true;
break;
}
params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
params.cw_min = ecw2cw(pos[1] & 0x0f);
params.txop = get_unaligned_le16(pos + 2);
+ params.uapsd = uapsd;
+
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
- "cWmin=%d cWmax=%d txop=%d\n",
- local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
- params.cw_max, params.txop);
+ "cWmin=%d cWmax=%d txop=%d uapsd=%d\n",
+ wiphy_name(local->hw.wiphy), queue, aci, acm,
+ params.aifs, params.cw_min, params.cw_max, params.txop,
+ params.uapsd);
#endif
if (drv_conf_tx(local, queue, ¶ms) && local->ops->conf_tx)
printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", local->mdev->name,
- queue);
+ "parameters for queue %d\n",
+ wiphy_name(local->hw.wiphy), queue);
}
}
u16 capab, bool erp_valid, u8 erp)
{
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-#endif
u32 changed = 0;
bool use_protection;
bool use_short_preamble;
}
use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
+ if (sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ use_short_slot = true;
if (use_protection != bss_conf->use_cts_prot) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID=%pM)\n",
- sdata->dev->name,
- use_protection ? "enabled" : "disabled",
- ifmgd->bssid);
- }
-#endif
bss_conf->use_cts_prot = use_protection;
changed |= BSS_CHANGED_ERP_CTS_PROT;
}
if (use_short_preamble != bss_conf->use_short_preamble) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s barker preamble"
- " (BSSID=%pM)\n",
- sdata->dev->name,
- use_short_preamble ? "short" : "long",
- ifmgd->bssid);
- }
-#endif
bss_conf->use_short_preamble = use_short_preamble;
changed |= BSS_CHANGED_ERP_PREAMBLE;
}
if (use_short_slot != bss_conf->use_short_slot) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s slot time"
- " (BSSID=%pM)\n",
- sdata->dev->name,
- use_short_slot ? "short" : "long",
- ifmgd->bssid);
- }
-#endif
bss_conf->use_short_slot = use_short_slot;
changed |= BSS_CHANGED_ERP_SLOT;
}
return changed;
}
-static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata)
-{
- union iwreq_data wrqu;
-
- memset(&wrqu, 0, sizeof(wrqu));
- if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED)
- memcpy(wrqu.ap_addr.sa_data, sdata->u.mgd.bssid, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
-}
-
-static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- char *buf;
- size_t len;
- int i;
- union iwreq_data wrqu;
-
- if (!ifmgd->assocreq_ies && !ifmgd->assocresp_ies)
- return;
-
- buf = kmalloc(50 + 2 * (ifmgd->assocreq_ies_len +
- ifmgd->assocresp_ies_len), GFP_KERNEL);
- if (!buf)
- return;
-
- len = sprintf(buf, "ASSOCINFO(");
- if (ifmgd->assocreq_ies) {
- len += sprintf(buf + len, "ReqIEs=");
- for (i = 0; i < ifmgd->assocreq_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifmgd->assocreq_ies[i]);
- }
- }
- if (ifmgd->assocresp_ies) {
- if (ifmgd->assocreq_ies)
- len += sprintf(buf + len, " ");
- len += sprintf(buf + len, "RespIEs=");
- for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifmgd->assocresp_ies[i]);
- }
- }
- len += sprintf(buf + len, ")");
-
- if (len > IW_CUSTOM_MAX) {
- len = sprintf(buf, "ASSOCRESPIE=");
- for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifmgd->assocresp_ies[i]);
- }
- }
-
- if (len <= IW_CUSTOM_MAX) {
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = len;
- wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
- }
-
- kfree(buf);
-}
-
-
static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_bss *cbss,
u32 bss_info_changed)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_bss *bss = (void *)cbss->priv;
struct ieee80211_local *local = sdata->local;
- struct ieee80211_conf *conf = &local_to_hw(local)->conf;
-
- struct ieee80211_bss *bss;
bss_info_changed |= BSS_CHANGED_ASSOC;
- ifmgd->flags |= IEEE80211_STA_ASSOCIATED;
+ /* set timing information */
+ sdata->vif.bss_conf.beacon_int = cbss->beacon_interval;
+ sdata->vif.bss_conf.timestamp = cbss->tsf;
- bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
- conf->channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- if (bss) {
- /* set timing information */
- sdata->vif.bss_conf.beacon_int = bss->cbss.beacon_interval;
- sdata->vif.bss_conf.timestamp = bss->cbss.tsf;
- sdata->vif.bss_conf.dtim_period = bss->dtim_period;
+ 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_info_changed |= BSS_CHANGED_BEACON_INT;
- bss_info_changed |= ieee80211_handle_bss_capability(sdata,
- bss->cbss.capability, bss->has_erp_value, bss->erp_value);
+ sdata->u.mgd.associated = cbss;
+ memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
- cfg80211_hold_bss(&bss->cbss);
+ /* just to be sure */
+ sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+ IEEE80211_STA_BEACON_POLL);
- ieee80211_rx_bss_put(local, bss);
- }
-
- ifmgd->flags |= IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifmgd->prev_bssid, sdata->u.mgd.bssid, ETH_ALEN);
- ieee80211_sta_send_associnfo(sdata);
+ /*
+ * Always handle WMM once after association regardless
+ * of the first value the AP uses. Setting -1 here has
+ * that effect because the AP values is an unsigned
+ * 4-bit value.
+ */
+ sdata->u.mgd.wmm_last_param_set = -1;
- ifmgd->last_probe = jiffies;
ieee80211_led_assoc(local, 1);
sdata->vif.bss_conf.assoc = 1;
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
- /* will be same as sdata */
- if (local->ps_sdata) {
- mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, -1);
- mutex_unlock(&local->iflist_mtx);
- }
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ ieee80211_recalc_smps(local, sdata);
+ mutex_unlock(&local->iflist_mtx);
netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
-
- ieee80211_sta_send_apinfo(sdata);
}
-static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
+ u32 changed = 0, config_changed = 0;
+ u8 bssid[ETH_ALEN];
- ifmgd->direct_probe_tries++;
- if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
- sdata->dev->name, ifmgd->bssid);
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
-
- /*
- * Most likely AP is not in the range so remove the
- * bss information associated to the AP
- */
- ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
+ ASSERT_MGD_MTX(ifmgd);
- /*
- * We might have a pending scan which had no chance to run yet
- * due to state == IEEE80211_STA_MLME_DIRECT_PROBE.
- * Hence, queue the STAs work again
- */
- queue_work(local->hw.workqueue, &ifmgd->work);
+ if (WARN_ON(!ifmgd->associated))
return;
- }
- printk(KERN_DEBUG "%s: direct probe to AP %pM try %d\n",
- sdata->dev->name, ifmgd->bssid,
- ifmgd->direct_probe_tries);
+ memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
- ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+ ifmgd->associated = NULL;
+ memset(ifmgd->bssid, 0, ETH_ALEN);
- /* Direct probe is sent to broadcast address as some APs
- * will not answer to direct packet in unassociated state.
+ /*
+ * we need to commit the associated = NULL change because the
+ * scan code uses that to determine whether this iface should
+ * go to/wake up from powersave or not -- and could otherwise
+ * wake the queues erroneously.
*/
- ieee80211_send_probe_req(sdata, NULL,
- ifmgd->ssid, ifmgd->ssid_len, NULL, 0);
-
- mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
-}
-
-
-static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- u8 *ies;
- size_t ies_len;
-
- ifmgd->auth_tries++;
- if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: authentication with AP %pM"
- " timed out\n",
- sdata->dev->name, ifmgd->bssid);
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
- ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
-
- /*
- * We might have a pending scan which had no chance to run yet
- * due to state == IEEE80211_STA_MLME_AUTHENTICATE.
- * Hence, queue the STAs work again
- */
- queue_work(local->hw.workqueue, &ifmgd->work);
- return;
- }
-
- ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
- printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
- sdata->dev->name, ifmgd->bssid);
-
- if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
- ies = ifmgd->sme_auth_ie;
- ies_len = ifmgd->sme_auth_ie_len;
- } else {
- ies = NULL;
- ies_len = 0;
- }
- ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len,
- ifmgd->bssid, 0);
- ifmgd->auth_transaction = 2;
-
- mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
-}
-
-/*
- * The disassoc 'reason' argument can be either our own reason
- * if self disconnected or a reason code from the AP.
- */
-static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
- bool deauth, bool self_disconnected,
- u16 reason)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_conf *conf = &local_to_hw(local)->conf;
- struct ieee80211_bss *bss;
- struct sta_info *sta;
- u32 changed = 0, config_changed = 0;
-
- rcu_read_lock();
-
- sta = sta_info_get(local, ifmgd->bssid);
- if (!sta) {
- rcu_read_unlock();
- return;
- }
+ smp_mb();
- if (deauth) {
- ifmgd->direct_probe_tries = 0;
- ifmgd->auth_tries = 0;
- }
- ifmgd->assoc_scan_tries = 0;
- ifmgd->assoc_tries = 0;
+ /*
+ * Thus, we can only afterwards stop the queues -- to account
+ * for the case where another CPU is finishing a scan at this
+ * time -- we don't want the scan code to enable queues.
+ */
netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
- ieee80211_sta_tear_down_BA_sessions(sta);
-
- bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
- conf->channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
-
- if (bss) {
- cfg80211_unhold_bss(&bss->cbss);
- ieee80211_rx_bss_put(local, bss);
- }
-
- if (self_disconnected) {
- if (deauth)
- ieee80211_send_deauth_disassoc(sdata,
- IEEE80211_STYPE_DEAUTH, reason);
- else
- ieee80211_send_deauth_disassoc(sdata,
- IEEE80211_STYPE_DISASSOC, reason);
- }
+ rcu_read_lock();
+ sta = sta_info_get(sdata, bssid);
+ if (sta)
+ ieee80211_sta_tear_down_BA_sessions(sta);
+ rcu_read_unlock();
- ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED;
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_led_assoc(local, 0);
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
- ieee80211_sta_send_apinfo(sdata);
-
- if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT) {
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- }
-
- rcu_read_unlock();
-
ieee80211_set_wmm_default(sdata);
- ieee80211_recalc_idle(local);
-
/* channel(_type) changes are handled by ieee80211_hw_config */
local->oper_channel_type = NL80211_CHAN_NO_HT;
changed |= BSS_CHANGED_BSSID;
ieee80211_bss_info_change_notify(sdata, changed);
- rcu_read_lock();
-
- sta = sta_info_get(local, ifmgd->bssid);
- if (!sta) {
- rcu_read_unlock();
- return;
- }
-
- sta_info_unlink(&sta);
-
- rcu_read_unlock();
-
- sta_info_destroy(sta);
-}
-
-static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata || !sdata->default_key ||
- sdata->default_key->conf.alg != ALG_WEP)
- return 0;
- return 1;
-}
-
-static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_bss *bss;
- int bss_privacy;
- int wep_privacy;
- int privacy_invoked;
-
- if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME))
- return 0;
-
- bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
- local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- if (!bss)
- return 0;
-
- bss_privacy = !!(bss->cbss.capability & WLAN_CAPABILITY_PRIVACY);
- wep_privacy = !!ieee80211_sta_wep_configured(sdata);
- privacy_invoked = !!(ifmgd->flags & IEEE80211_STA_PRIVACY_INVOKED);
-
- ieee80211_rx_bss_put(local, bss);
-
- if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
- return 0;
-
- return 1;
-}
-
-static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
-
- ifmgd->assoc_tries++;
- if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- printk(KERN_DEBUG "%s: association with AP %pM"
- " timed out\n",
- sdata->dev->name, ifmgd->bssid);
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- cfg80211_send_assoc_timeout(sdata->dev, ifmgd->bssid);
- ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- /*
- * We might have a pending scan which had no chance to run yet
- * due to state == IEEE80211_STA_MLME_ASSOCIATE.
- * Hence, queue the STAs work again
- */
- queue_work(local->hw.workqueue, &ifmgd->work);
- return;
- }
-
- ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
- printk(KERN_DEBUG "%s: associate with AP %pM\n",
- sdata->dev->name, ifmgd->bssid);
- if (ieee80211_privacy_mismatch(sdata)) {
- printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
- "mixed-cell disabled - abort association\n", sdata->dev->name);
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- return;
- }
-
- ieee80211_send_assoc(sdata);
-
- mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+ sta_info_destroy_addr(sdata, bssid);
}
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
* from AP because we know that the connection is working both ways
* at that time. But multicast frames (and hence also beacons) must
* be ignored here, because we need to trigger the timer during
- * data idle periods for sending the periodical probe request to
- * the AP.
- */
- if (!is_multicast_ether_addr(hdr->addr1))
- mod_timer(&sdata->u.mgd.timer,
- jiffies + IEEE80211_MONITORING_INTERVAL);
-}
-
-void ieee80211_beacon_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);
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
- /*
- * The driver has already reported this event and we have
- * already sent a probe request. Maybe the AP died and the
- * driver keeps reporting until we disassociate... We have
- * to ignore that because otherwise we would continually
- * reset the timer and never check whether we received a
- * probe response!
+ * data idle periods for sending the periodic probe request to the
+ * AP we're connected to.
*/
- if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+ if (is_multicast_ether_addr(hdr->addr1))
return;
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
- "- sending probe request\n", sdata->dev->name,
- sdata->u.mgd.bssid);
- }
-#endif
-
- ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
- ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
- ifmgd->ssid_len, NULL, 0);
-
- mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
+ mod_timer(&sdata->u.mgd.conn_mon_timer,
+ round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
}
-void ieee80211_beacon_loss(struct ieee80211_vif *vif)
+static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ const u8 *ssid;
+
+ ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
+ ieee80211_send_probe_req(sdata, ifmgd->associated->bssid,
+ ssid + 2, ssid[1], NULL, 0);
- queue_work(sdata->local->hw.workqueue,
- &sdata->u.mgd.beacon_loss_work);
+ ifmgd->probe_send_count++;
+ ifmgd->probe_timeout = jiffies + IEEE80211_PROBE_WAIT;
+ run_again(ifmgd, ifmgd->probe_timeout);
}
-EXPORT_SYMBOL(ieee80211_beacon_loss);
-static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
+ bool beacon)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- struct sta_info *sta;
- bool disassoc = false;
+ bool already = false;
- /* TODO: start monitoring current AP signal quality and number of
- * missed beacons. Scan other channels every now and then and search
- * for better APs. */
- /* TODO: remove expired BSSes */
+ if (!ieee80211_sdata_running(sdata))
+ return;
- ifmgd->state = IEEE80211_STA_MLME_ASSOCIATED;
+ if (sdata->local->scanning)
+ return;
- rcu_read_lock();
+ if (sdata->local->tmp_channel)
+ return;
- sta = sta_info_get(local, ifmgd->bssid);
- if (!sta) {
- printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
- sdata->dev->name, ifmgd->bssid);
- disassoc = true;
- goto unlock;
- }
+ mutex_lock(&ifmgd->mtx);
- if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
- time_after(jiffies, sta->last_rx + IEEE80211_PROBE_WAIT)) {
- printk(KERN_DEBUG "%s: no probe response from AP %pM "
- "- disassociating\n",
- sdata->dev->name, ifmgd->bssid);
- disassoc = true;
- ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- goto unlock;
- }
+ if (!ifmgd->associated)
+ goto out;
- /*
- * Beacon filtering is only enabled with power save and then the
- * stack should not check for beacon loss.
- */
- if (!((local->hw.flags & IEEE80211_HW_BEACON_FILTER) &&
- (local->hw.conf.flags & IEEE80211_CONF_PS)) &&
- time_after(jiffies,
- ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: beacon loss from AP %pM "
- "- sending probe request\n",
- sdata->dev->name, ifmgd->bssid);
- }
+ if (beacon && net_ratelimit())
+ printk(KERN_DEBUG "%s: detected beacon loss from AP "
+ "- sending probe request\n", sdata->name);
#endif
- ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
- ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
- ifmgd->ssid_len, NULL, 0);
- mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
- goto unlock;
- }
-
- if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
- ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
- ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
- ifmgd->ssid_len, NULL, 0);
- }
-
- if (!disassoc)
- mod_timer(&ifmgd->timer,
- jiffies + IEEE80211_MONITORING_INTERVAL);
- unlock:
- rcu_read_unlock();
+ /*
+ * The driver/our work has already reported this event or the
+ * connection monitoring has kicked in and we have already sent
+ * a probe request. Or maybe the AP died and the driver keeps
+ * reporting until we disassociate...
+ *
+ * In either case we have to ignore the current call to this
+ * function (except for setting the correct probe reason bit)
+ * because otherwise we would reset the timer every time and
+ * never check whether we received a probe response!
+ */
+ if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL))
+ already = true;
- if (disassoc)
- ieee80211_set_disassoc(sdata, true, true,
- WLAN_REASON_PREV_AUTH_NOT_VALID);
-}
+ if (beacon)
+ ifmgd->flags |= IEEE80211_STA_BEACON_POLL;
+ else
+ ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL;
+ if (already)
+ goto out;
-static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ mutex_lock(&sdata->local->iflist_mtx);
+ ieee80211_recalc_ps(sdata->local, -1);
+ mutex_unlock(&sdata->local->iflist_mtx);
- printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
- ifmgd->flags |= IEEE80211_STA_AUTHENTICATED;
- if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
- /* Wait for SME to request association */
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(sdata->local);
- } else
- ieee80211_associate(sdata);
+ ifmgd->probe_send_count = 0;
+ ieee80211_mgd_probe_ap_send(sdata);
+ out:
+ mutex_unlock(&ifmgd->mtx);
}
-
-static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+void ieee80211_beacon_loss_work(struct work_struct *work)
{
- u8 *pos;
- struct ieee802_11_elems elems;
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data,
+ u.mgd.beacon_loss_work);
- pos = mgmt->u.auth.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
- if (!elems.challenge)
- return;
- ieee80211_send_auth(sdata, 3, sdata->u.mgd.auth_alg,
- elems.challenge - 2, elems.challenge_len + 2,
- sdata->u.mgd.bssid, 1);
- sdata->u.mgd.auth_transaction = 4;
+ ieee80211_mgd_probe_ap(sdata, true);
}
-static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+void ieee80211_beacon_loss(struct ieee80211_vif *vif)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- u16 auth_alg, auth_transaction, status_code;
-
- if (ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE)
- return;
-
- if (len < 24 + 6)
- return;
-
- if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
- return;
-
- if (memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
- return;
-
- auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
- auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
- status_code = le16_to_cpu(mgmt->u.auth.status_code);
-
- if (auth_alg != ifmgd->auth_alg ||
- auth_transaction != ifmgd->auth_transaction)
- return;
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
- u8 algs[3];
- const int num_algs = ARRAY_SIZE(algs);
- int i, pos;
- algs[0] = algs[1] = algs[2] = 0xff;
- if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- algs[0] = WLAN_AUTH_OPEN;
- if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- algs[1] = WLAN_AUTH_SHARED_KEY;
- if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- algs[2] = WLAN_AUTH_LEAP;
- if (ifmgd->auth_alg == WLAN_AUTH_OPEN)
- pos = 0;
- else if (ifmgd->auth_alg == WLAN_AUTH_SHARED_KEY)
- pos = 1;
- else
- pos = 2;
- for (i = 0; i < num_algs; i++) {
- pos++;
- if (pos >= num_algs)
- pos = 0;
- if (algs[pos] == ifmgd->auth_alg ||
- algs[pos] == 0xff)
- continue;
- if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
- !ieee80211_sta_wep_configured(sdata))
- continue;
- ifmgd->auth_alg = algs[pos];
- break;
- }
- }
- return;
- }
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
- switch (ifmgd->auth_alg) {
- case WLAN_AUTH_OPEN:
- case WLAN_AUTH_LEAP:
- case WLAN_AUTH_FT:
- ieee80211_auth_completed(sdata);
- cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
- break;
- case WLAN_AUTH_SHARED_KEY:
- if (ifmgd->auth_transaction == 4) {
- ieee80211_auth_completed(sdata);
- cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
- } else
- ieee80211_auth_challenge(sdata, mgmt, len);
- break;
- }
+ ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work);
}
+EXPORT_SYMBOL(ieee80211_beacon_loss);
-
-static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+static enum rx_mgmt_action __must_check
+ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ const u8 *bssid = NULL;
u16 reason_code;
if (len < 24 + 2)
- return;
+ return RX_MGMT_NONE;
- if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
- return;
+ ASSERT_MGD_MTX(ifmgd);
+
+ bssid = ifmgd->associated->bssid;
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
- if (ifmgd->flags & IEEE80211_STA_AUTHENTICATED)
- printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
- sdata->dev->name, reason_code);
-
- if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
- (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
- ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
- ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) {
- ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
- mod_timer(&ifmgd->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
+ printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n",
+ sdata->name, bssid, reason_code);
- ieee80211_set_disassoc(sdata, true, false, 0);
- ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
- cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len);
+ ieee80211_set_disassoc(sdata);
+ ieee80211_recalc_idle(sdata->local);
+
+ return RX_MGMT_CFG80211_DEAUTH;
}
-static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+static enum rx_mgmt_action __must_check
+ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u16 reason_code;
if (len < 24 + 2)
- return;
+ return RX_MGMT_NONE;
- if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
- return;
+ ASSERT_MGD_MTX(ifmgd);
- reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+ if (WARN_ON(!ifmgd->associated))
+ return RX_MGMT_NONE;
- if (ifmgd->flags & IEEE80211_STA_ASSOCIATED)
- printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
- sdata->dev->name, reason_code);
+ if (WARN_ON(memcmp(ifmgd->associated->bssid, mgmt->sa, ETH_ALEN)))
+ return RX_MGMT_NONE;
- if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
- ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
- ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
- mod_timer(&ifmgd->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
+ reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
- ieee80211_set_disassoc(sdata, false, false, reason_code);
- cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len);
+ printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n",
+ sdata->name, mgmt->sa, reason_code);
+
+ ieee80211_set_disassoc(sdata);
+ ieee80211_recalc_idle(sdata->local);
+ return RX_MGMT_CFG80211_DISASSOC;
}
-static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- int reassoc)
+static bool ieee80211_assoc_success(struct ieee80211_work *wk,
+ struct ieee80211_mgmt *mgmt, size_t len)
{
+ struct ieee80211_sub_if_data *sdata = wk->sdata;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
struct sta_info *sta;
+ struct cfg80211_bss *cbss = wk->assoc.bss;
+ u8 *pos;
u32 rates, basic_rates;
- u16 capab_info, status_code, aid;
+ u16 capab_info, aid;
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
- u8 *pos;
u32 changed = 0;
- int i, j;
- bool have_higher_than_11mbit = false, newsta = false;
+ int i, j, err;
+ bool have_higher_than_11mbit = false;
u16 ap_ht_cap_flags;
- /* AssocResp and ReassocResp have identical structure, so process both
- * of them in this function. */
+ /* AssocResp and ReassocResp have identical structure */
- if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
- return;
-
- if (len < 24 + 6)
- return;
-
- if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
- return;
-
- capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
- 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->dev->name, 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);
-
- if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
- elems.timeout_int && elems.timeout_int_len == 5 &&
- elems.timeout_int[0] == WLAN_TIMEOUT_ASSOC_COMEBACK) {
- u32 tu, ms;
- tu = get_unaligned_le32(elems.timeout_int + 1);
- ms = tu * 1024 / 1000;
- printk(KERN_DEBUG "%s: AP rejected association temporarily; "
- "comeback duration %u TU (%u ms)\n",
- sdata->dev->name, tu, ms);
- if (ms > IEEE80211_ASSOC_TIMEOUT)
- mod_timer(&ifmgd->timer,
- jiffies + msecs_to_jiffies(ms));
- return;
- }
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
- sdata->dev->name, status_code);
- /* if this was a reassociation, ensure we try a "full"
- * association next time. This works around some broken APs
- * which do not correctly reject reassociation requests. */
- ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
- if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
- /* Wait for SME to decide what to do next */
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- }
- return;
- }
+ 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 %d; bits 15:14 not "
- "set\n", sdata->dev->name, aid);
+ "set\n", sdata->name, aid);
aid &= ~(BIT(15) | BIT(14));
+ pos = mgmt->u.assoc_resp.variable;
+ 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->dev->name);
- return;
+ sdata->name);
+ return false;
}
- printk(KERN_DEBUG "%s: associated\n", sdata->dev->name);
ifmgd->aid = aid;
- ifmgd->ap_capab = capab_info;
-
- kfree(ifmgd->assocresp_ies);
- ifmgd->assocresp_ies_len = len - (pos - (u8 *) mgmt);
- ifmgd->assocresp_ies = kmalloc(ifmgd->assocresp_ies_len, GFP_KERNEL);
- if (ifmgd->assocresp_ies)
- memcpy(ifmgd->assocresp_ies, pos, ifmgd->assocresp_ies_len);
- rcu_read_lock();
-
- /* Add STA entry for the AP */
- sta = sta_info_get(local, ifmgd->bssid);
+ sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
if (!sta) {
- newsta = true;
-
- sta = sta_info_alloc(sdata, ifmgd->bssid, GFP_ATOMIC);
- if (!sta) {
- printk(KERN_DEBUG "%s: failed to alloc STA entry for"
- " the AP\n", sdata->dev->name);
- rcu_read_unlock();
- return;
- }
-
- /* update new sta with its last rx activity */
- sta->last_rx = jiffies;
+ printk(KERN_DEBUG "%s: failed to alloc STA entry for"
+ " the AP\n", sdata->name);
+ return false;
}
- /*
- * FIXME: Do we really need to update the sta_info's information here?
- * We already know about the AP (we found it in our list) so it
- * should already be filled with the right info, no?
- * As is stands, all this is racy because typically we assume
- * the information that is filled in here (except flags) doesn't
- * change while a STA structure is alive. As such, it should move
- * to between the sta_info_alloc() and sta_info_insert() above.
- */
-
- set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP);
+ set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC |
+ WLAN_STA_ASSOC_AP);
if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
set_sta_flags(sta, WLAN_STA_AUTHORIZED);
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- /* If TKIP/WEP is used, no need to parse AP's HT capabilities */
- if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))
+ if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
if (elems.wmm_param)
set_sta_flags(sta, WLAN_STA_WME);
- if (newsta) {
- int err = sta_info_insert(sta);
- if (err) {
- printk(KERN_DEBUG "%s: failed to insert STA entry for"
- " the AP (error %d)\n", sdata->dev->name, err);
- rcu_read_unlock();
- return;
- }
+ 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 false;
}
- rcu_read_unlock();
-
if (elems.wmm_param)
ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
elems.wmm_param_len);
else
ieee80211_set_wmm_default(sdata);
+ local->oper_channel = wk->chan;
+
if (elems.ht_info_elem && elems.wmm_param &&
- (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
- !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))
+ (sdata->local->hw.queues >= 4) &&
+ !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
- ap_ht_cap_flags);
+ cbss->bssid, ap_ht_cap_flags);
/* set AID and assoc capability,
* ieee80211_set_associated() will tell the driver */
bss_conf->aid = aid;
bss_conf->assoc_capability = capab_info;
- ieee80211_set_associated(sdata, changed);
+ ieee80211_set_associated(sdata, cbss, changed);
/*
- * initialise the time of last beacon to be the association time,
- * otherwise beacon loss check will trigger immediately
+ * If we're using 4-addr mode, let the AP know that we're
+ * doing so, so that it can create the STA VLAN on its side
*/
- ifmgd->last_beacon = jiffies;
+ if (ifmgd->use_4addr)
+ ieee80211_send_4addr_nullfunc(local, sdata);
- ieee80211_associated(sdata);
- cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
+ /*
+ * Start timer to probe the connection to the AP now.
+ * Also start the timer that will detect beacon loss.
+ */
+ ieee80211_sta_rx_notify(sdata, (struct ieee80211_hdr *)mgmt);
+ mod_beacon_timer(sdata);
+
+ return true;
}
int freq;
struct ieee80211_bss *bss;
struct ieee80211_channel *channel;
+ bool need_ps = false;
+
+ if (sdata->u.mgd.associated) {
+ bss = (void *)sdata->u.mgd.associated->priv;
+ /* not previously set so we may need to recalc */
+ need_ps = !bss->dtim_period;
+ }
if (elems->ds_params && elems->ds_params_len == 1)
freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
channel, beacon);
- if (!bss)
+ if (bss)
+ ieee80211_rx_bss_put(local, bss);
+
+ if (!sdata->u.mgd.associated)
return;
+ if (need_ps) {
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
+ }
+
if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
- (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) {
+ (memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid,
+ 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_rx_bss_put(local, bss);
}
static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
+ struct sk_buff *skb)
{
+ struct ieee80211_mgmt *mgmt = (void *)skb->data;
struct ieee80211_if_managed *ifmgd;
- size_t baselen;
+ struct ieee80211_rx_status *rx_status = (void *) skb->cb;
+ size_t baselen, len = skb->len;
struct ieee802_11_elems elems;
ifmgd = &sdata->u.mgd;
- if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+ ASSERT_MGD_MTX(ifmgd);
+
+ if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
return; /* ignore ProbeResp to foreign address */
baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
- /* direct probe may be part of the association flow */
- if (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE) {
- printk(KERN_DEBUG "%s direct probe responded\n",
- sdata->dev->name);
- ieee80211_authenticate(sdata);
+ if (ifmgd->associated &&
+ memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0 &&
+ ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL)) {
+ ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+ IEEE80211_STA_BEACON_POLL);
+ mutex_lock(&sdata->local->iflist_mtx);
+ ieee80211_recalc_ps(sdata->local, -1);
+ mutex_unlock(&sdata->local->iflist_mtx);
+ /*
+ * 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));
}
-
- if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
- ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
}
/*
bool erp_valid, directed_tim = false;
u8 erp_value = 0;
u32 ncrc;
+ u8 *bssid;
+
+ ASSERT_MGD_MTX(ifmgd);
/* Process beacon from the current BSS */
baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
if (rx_status->freq != local->hw.conf.channel->center_freq)
return;
- if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) ||
- memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
+ /*
+ * We might have received a number of frames, among them a
+ * disassoc frame and a beacon...
+ */
+ if (!ifmgd->associated)
+ return;
+
+ bssid = ifmgd->associated->bssid;
+
+ /*
+ * And in theory even frames from a different AP we were just
+ * associated to a split-second ago!
+ */
+ if (memcmp(bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
- if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
+ if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: cancelling probereq poll due "
- "to a received beacon\n", sdata->dev->name);
+ "to a received beacon\n", sdata->name);
}
#endif
- ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+ ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
}
+ /*
+ * Push the beacon loss detection into the future since
+ * we are processing a beacon from the AP just now.
+ */
+ mod_beacon_timer(sdata);
+
ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
len - baselen, &elems,
if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
- !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) {
+ !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) {
struct sta_info *sta;
struct ieee80211_supported_band *sband;
u16 ap_ht_cap_flags;
rcu_read_lock();
- sta = sta_info_get(local, ifmgd->bssid);
- if (!sta) {
+ sta = sta_info_get(sdata, bssid);
+ if (WARN_ON(!sta)) {
rcu_read_unlock();
return;
}
rcu_read_unlock();
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
- ap_ht_cap_flags);
+ bssid, ap_ht_cap_flags);
}
+ /* Note: country IE parsing is done for us by cfg80211 */
if (elems.country_elem) {
- /* Note we are only reviewing this on beacons
- * for the BSSID we are associated to */
- regulatory_hint_11d(local->hw.wiphy,
- elems.country_elem, elems.country_elem_len);
-
/* TODO: IBSS also needs this */
if (elems.pwr_constr_elem)
ieee80211_handle_pwr_constr(sdata,
}
ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
+ struct sk_buff *skb)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_mgmt *mgmt;
fc = le16_to_cpu(mgmt->frame_control);
switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
- memcpy(skb->cb, rx_status, sizeof(*rx_status));
- case IEEE80211_STYPE_AUTH:
- case IEEE80211_STYPE_ASSOC_RESP:
- case IEEE80211_STYPE_REASSOC_RESP:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
+ case IEEE80211_STYPE_ACTION:
skb_queue_tail(&sdata->u.mgd.skb_queue, skb);
- queue_work(local->hw.workqueue, &sdata->u.mgd.work);
+ ieee80211_queue_work(&local->hw, &sdata->u.mgd.work);
return RX_QUEUED;
}
static 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;
struct ieee80211_mgmt *mgmt;
+ enum rx_mgmt_action rma = RX_MGMT_NONE;
u16 fc;
rx_status = (struct ieee80211_rx_status *) skb->cb;
mgmt = (struct ieee80211_mgmt *) skb->data;
fc = le16_to_cpu(mgmt->frame_control);
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_RESP:
- ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
- rx_status);
- break;
- case IEEE80211_STYPE_BEACON:
- ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
- rx_status);
- break;
- case IEEE80211_STYPE_AUTH:
- ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 0);
- break;
- case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 1);
- break;
- case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
- break;
+ mutex_lock(&ifmgd->mtx);
+
+ if (ifmgd->associated &&
+ memcmp(ifmgd->associated->bssid, mgmt->bssid, ETH_ALEN) == 0) {
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_BEACON:
+ ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
+ rx_status);
+ break;
+ case IEEE80211_STYPE_PROBE_RESP:
+ ieee80211_rx_mgmt_probe_resp(sdata, skb);
+ break;
+ case IEEE80211_STYPE_DEAUTH:
+ rma = ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_DISASSOC:
+ rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_ACTION:
+ if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
+ break;
+
+ ieee80211_sta_process_chanswitch(sdata,
+ &mgmt->u.action.u.chan_switch.sw_elem,
+ (void *)ifmgd->associated->priv);
+ break;
+ }
+ mutex_unlock(&ifmgd->mtx);
+
+ switch (rma) {
+ case RX_MGMT_NONE:
+ /* no action */
+ break;
+ case RX_MGMT_CFG80211_DEAUTH:
+ cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
+ break;
+ case RX_MGMT_CFG80211_DISASSOC:
+ cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
+ break;
+ default:
+ WARN(1, "unexpected: %d", rma);
+ }
+ goto out;
}
+ 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);
+
+ out:
kfree_skb(skb);
}
return;
}
- set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
- queue_work(local->hw.workqueue, &ifmgd->work);
+ ieee80211_queue_work(&local->hw, &ifmgd->work);
}
-static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
-
- /* Reset own TSF to allow time synchronization work. */
- drv_reset_tsf(local);
-
- ifmgd->wmm_last_param_set = -1; /* allow any WMM update */
-
-
- if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- ifmgd->auth_alg = WLAN_AUTH_OPEN;
- else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY;
- else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- ifmgd->auth_alg = WLAN_AUTH_LEAP;
- else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_FT)
- ifmgd->auth_alg = WLAN_AUTH_FT;
- else
- ifmgd->auth_alg = WLAN_AUTH_OPEN;
- ifmgd->auth_transaction = -1;
- ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED;
- ifmgd->assoc_scan_tries = 0;
- ifmgd->direct_probe_tries = 0;
- ifmgd->auth_tries = 0;
- ifmgd->assoc_tries = 0;
- netif_tx_stop_all_queues(sdata->dev);
- netif_carrier_off(sdata->dev);
-}
-
-static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_bss *bss;
- u8 *bssid = ifmgd->bssid, *ssid = ifmgd->ssid;
- u8 ssid_len = ifmgd->ssid_len;
- u16 capa_mask = WLAN_CAPABILITY_ESS;
- u16 capa_val = WLAN_CAPABILITY_ESS;
- struct ieee80211_channel *chan = local->oper_channel;
-
- if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
- ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL)) {
- capa_mask |= WLAN_CAPABILITY_PRIVACY;
- if (sdata->default_key)
- capa_val |= WLAN_CAPABILITY_PRIVACY;
- }
-
- if (ifmgd->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
- chan = NULL;
-
- if (ifmgd->flags & IEEE80211_STA_AUTO_BSSID_SEL)
- bssid = NULL;
-
- if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL) {
- ssid = NULL;
- ssid_len = 0;
- }
-
- bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan,
- bssid, ssid, ssid_len,
- capa_mask, capa_val);
-
- if (bss) {
- ieee80211_set_freq(sdata, bss->cbss.channel->center_freq);
- if (!(ifmgd->flags & IEEE80211_STA_SSID_SET))
- ieee80211_sta_set_ssid(sdata, bss->ssid,
- bss->ssid_len);
- ieee80211_sta_set_bssid(sdata, bss->cbss.bssid);
- ieee80211_sta_def_wmm_params(sdata, bss->supp_rates_len,
- bss->supp_rates);
- if (sdata->u.mgd.mfp == IEEE80211_MFP_REQUIRED)
- sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
- else
- sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
-
- /* Send out direct probe if no probe resp was received or
- * the one we have is outdated
- */
- if (!bss->last_probe_resp ||
- time_after(jiffies, bss->last_probe_resp
- + IEEE80211_SCAN_RESULT_EXPIRE))
- ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
- else
- ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
-
- ieee80211_rx_bss_put(local, bss);
- ieee80211_sta_reset_auth(sdata);
- return 0;
- } else {
- if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
-
- ifmgd->assoc_scan_tries++;
-
- ieee80211_request_internal_scan(sdata, ifmgd->ssid,
- ssid_len);
-
- ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
- set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
- } else {
- ifmgd->assoc_scan_tries = 0;
- ifmgd->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_recalc_idle(local);
- }
- }
- return -1;
-}
-
-
static void ieee80211_sta_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
struct ieee80211_if_managed *ifmgd;
struct sk_buff *skb;
- if (!netif_running(sdata->dev))
+ if (!ieee80211_sdata_running(sdata))
return;
- if (local->sw_scanning || local->hw_scanning)
+ if (local->scanning)
return;
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
/*
- * Nothing should have been stuffed into the workqueue during
- * the suspend->resume cycle. If this WARN is seen then there
- * is a bug with either the driver suspend or something in
- * mac80211 stuffing into the workqueue which we haven't yet
- * cleared during mac80211's suspend cycle.
+ * ieee80211_queue_work() should have picked up most cases,
+ * here we'll pick the the rest.
*/
- if (WARN_ON(local->suspended))
+ 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);
- if (ifmgd->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
- ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE &&
- ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE &&
- test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) {
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- round_jiffies_relative(0));
- return;
+ /* then process the rest of the work */
+ mutex_lock(&ifmgd->mtx);
+
+ if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL) &&
+ ifmgd->associated) {
+ u8 bssid[ETH_ALEN];
+
+ memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
+ if (time_is_after_jiffies(ifmgd->probe_timeout))
+ run_again(ifmgd, ifmgd->probe_timeout);
+
+ else if (ifmgd->probe_send_count < IEEE80211_MAX_PROBE_TRIES) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "No probe response from AP %pM"
+ " after %dms, try %d\n", bssid,
+ (1000 * IEEE80211_PROBE_WAIT)/HZ,
+ ifmgd->probe_send_count);
+#endif
+ ieee80211_mgd_probe_ap_send(sdata);
+ } else {
+ /*
+ * We actually lost the connection ... or did we?
+ * Let's make sure!
+ */
+ ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+ IEEE80211_STA_BEACON_POLL);
+ printk(KERN_DEBUG "No probe response from AP %pM"
+ " after %dms, disconnecting.\n",
+ bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ);
+ ieee80211_set_disassoc(sdata);
+ 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);
+ mutex_lock(&ifmgd->mtx);
+ }
}
- if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request)) {
- if (ieee80211_sta_config_auth(sdata))
- return;
- clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
- } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request))
+ mutex_unlock(&ifmgd->mtx);
+}
+
+static void ieee80211_sta_bcn_mon_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_local *local = sdata->local;
+
+ if (local->quiescing)
return;
- ieee80211_recalc_idle(local);
+ ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.beacon_loss_work);
+}
- switch (ifmgd->state) {
- case IEEE80211_STA_MLME_DISABLED:
- break;
- case IEEE80211_STA_MLME_DIRECT_PROBE:
- ieee80211_direct_probe(sdata);
- break;
- case IEEE80211_STA_MLME_AUTHENTICATE:
- ieee80211_authenticate(sdata);
- break;
- case IEEE80211_STA_MLME_ASSOCIATE:
- ieee80211_associate(sdata);
- break;
- case IEEE80211_STA_MLME_ASSOCIATED:
- ieee80211_associated(sdata);
- break;
- default:
- WARN_ON(1);
- break;
- }
+static void ieee80211_sta_conn_mon_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_local *local = sdata->local;
- if (ieee80211_privacy_mismatch(sdata)) {
- printk(KERN_DEBUG "%s: privacy configuration mismatch and "
- "mixed-cell disabled - disassociate\n", sdata->dev->name);
+ if (local->quiescing)
+ return;
- ieee80211_set_disassoc(sdata, false, true,
- WLAN_REASON_UNSPECIFIED);
- }
+ ieee80211_queue_work(&local->hw, &ifmgd->monitor_work);
}
-static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_monitor_work(struct work_struct *work)
{
- if (sdata->vif.type == NL80211_IFTYPE_STATION) {
- /*
- * Need to update last_beacon to avoid beacon loss
- * test to trigger.
- */
- sdata->u.mgd.last_beacon = jiffies;
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data,
+ u.mgd.monitor_work);
+ ieee80211_mgd_probe_ap(sdata, false);
+}
- queue_work(sdata->local->hw.workqueue,
+static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
+{
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ sdata->u.mgd.flags &= ~(IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL);
+
+ /* let's probe the connection once */
+ 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);
}
}
cancel_work_sync(&ifmgd->chswitch_work);
if (del_timer_sync(&ifmgd->chswitch_timer))
set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
+
+ cancel_work_sync(&ifmgd->monitor_work);
+ /* these will just be re-established on connection */
+ del_timer_sync(&ifmgd->conn_mon_timer);
+ del_timer_sync(&ifmgd->bcn_mon_timer);
}
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd;
- u32 hw_flags;
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);
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->conn_mon_timer, ieee80211_sta_conn_mon_timer,
+ (unsigned long) sdata);
setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
skb_queue_head_init(&ifmgd->skb_queue);
- ifmgd->capab = WLAN_CAPABILITY_ESS;
- ifmgd->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifmgd->flags |= IEEE80211_STA_CREATE_IBSS |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- if (sdata->local->hw.queues >= 4)
- ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
+ ifmgd->flags = 0;
- hw_flags = sdata->local->hw.flags;
+ mutex_init(&ifmgd->mtx);
- if (hw_flags & IEEE80211_HW_SUPPORTS_PS) {
- ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE;
- sdata->local->hw.conf.dynamic_ps_timeout = 500;
- }
+ if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
+ ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC;
+ else
+ ifmgd->req_smps = IEEE80211_SMPS_OFF;
}
-/* configuration hooks */
-void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
+/* scan finished notification */
+void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_local *local = sdata->local;
-
- if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
- return;
+ struct ieee80211_sub_if_data *sdata = local->scan_sdata;
- if ((ifmgd->flags & (IEEE80211_STA_BSSID_SET |
- IEEE80211_STA_AUTO_BSSID_SEL)) &&
- (ifmgd->flags & (IEEE80211_STA_SSID_SET |
- IEEE80211_STA_AUTO_SSID_SEL))) {
-
- if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)
- ieee80211_set_disassoc(sdata, true, true,
- WLAN_REASON_DEAUTH_LEAVING);
-
- if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) ||
- ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
- set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
- else if (ifmgd->flags & IEEE80211_STA_EXT_SME)
- set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
- queue_work(local->hw.workqueue, &ifmgd->work);
- }
+ /* Restart STA timers */
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list)
+ ieee80211_restart_sta_timer(sdata);
+ rcu_read_unlock();
}
-int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata)
+int ieee80211_max_network_latency(struct notifier_block *nb,
+ unsigned long data, void *dummy)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ s32 latency_usec = (s32) data;
+ struct ieee80211_local *local =
+ container_of(nb, struct ieee80211_local,
+ network_latency_notifier);
- if (ifmgd->ssid_len)
- ifmgd->flags |= IEEE80211_STA_SSID_SET;
- else
- ifmgd->flags &= ~IEEE80211_STA_SSID_SET;
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, latency_usec);
+ mutex_unlock(&local->iflist_mtx);
return 0;
}
-int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+/* config hooks */
+static enum work_done_result
+ieee80211_probe_auth_done(struct ieee80211_work *wk,
+ struct sk_buff *skb)
{
- struct ieee80211_if_managed *ifmgd;
-
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- ifmgd = &sdata->u.mgd;
+ if (!skb) {
+ cfg80211_send_auth_timeout(wk->sdata->dev, wk->filter_ta);
+ return WORK_DONE_DESTROY;
+ }
- if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
- /*
- * Do not use reassociation if SSID is changed (different ESS).
- */
- ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid));
- memcpy(ifmgd->ssid, ssid, len);
- ifmgd->ssid_len = len;
+ if (wk->type == IEEE80211_WORK_AUTH) {
+ cfg80211_send_rx_auth(wk->sdata->dev, skb->data, skb->len);
+ return WORK_DONE_DESTROY;
}
- return ieee80211_sta_commit(sdata);
+ mutex_lock(&wk->sdata->u.mgd.mtx);
+ ieee80211_rx_mgmt_probe_resp(wk->sdata, skb);
+ mutex_unlock(&wk->sdata->u.mgd.mtx);
+
+ wk->type = IEEE80211_WORK_AUTH;
+ wk->probe_auth.tries = 0;
+ return WORK_DONE_REQUEUE;
}
-int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
+int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_auth_request *req)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- memcpy(ssid, ifmgd->ssid, ifmgd->ssid_len);
- *len = ifmgd->ssid_len;
+ const u8 *ssid;
+ struct ieee80211_work *wk;
+ u16 auth_alg;
+
+ switch (req->auth_type) {
+ case NL80211_AUTHTYPE_OPEN_SYSTEM:
+ auth_alg = WLAN_AUTH_OPEN;
+ break;
+ case NL80211_AUTHTYPE_SHARED_KEY:
+ auth_alg = WLAN_AUTH_SHARED_KEY;
+ break;
+ case NL80211_AUTHTYPE_FT:
+ auth_alg = WLAN_AUTH_FT;
+ break;
+ case NL80211_AUTHTYPE_NETWORK_EAP:
+ auth_alg = WLAN_AUTH_LEAP;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ wk = kzalloc(sizeof(*wk) + req->ie_len, GFP_KERNEL);
+ if (!wk)
+ return -ENOMEM;
+
+ memcpy(wk->filter_ta, req->bss->bssid, ETH_ALEN);
+
+ if (req->ie && req->ie_len) {
+ memcpy(wk->ie, req->ie, req->ie_len);
+ wk->ie_len = req->ie_len;
+ }
+
+ if (req->key && req->key_len) {
+ wk->probe_auth.key_len = req->key_len;
+ wk->probe_auth.key_idx = req->key_idx;
+ memcpy(wk->probe_auth.key, req->key, req->key_len);
+ }
+
+ ssid = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
+ memcpy(wk->probe_auth.ssid, ssid + 2, ssid[1]);
+ wk->probe_auth.ssid_len = ssid[1];
+
+ wk->probe_auth.algorithm = auth_alg;
+ wk->probe_auth.privacy = req->bss->capability & WLAN_CAPABILITY_PRIVACY;
+
+ /* if we already have a probe, don't probe again */
+ if (req->bss->proberesp_ies)
+ wk->type = IEEE80211_WORK_AUTH;
+ else
+ wk->type = IEEE80211_WORK_DIRECT_PROBE;
+ wk->chan = req->bss->channel;
+ wk->sdata = sdata;
+ wk->done = ieee80211_probe_auth_done;
+
+ ieee80211_add_work(wk);
return 0;
}
-int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
+static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
+ struct sk_buff *skb)
{
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_mgmt *mgmt;
+ u16 status;
- if (is_valid_ether_addr(bssid)) {
- memcpy(ifmgd->bssid, bssid, ETH_ALEN);
- ifmgd->flags |= IEEE80211_STA_BSSID_SET;
- } else {
- memset(ifmgd->bssid, 0, ETH_ALEN);
- ifmgd->flags &= ~IEEE80211_STA_BSSID_SET;
+ if (!skb) {
+ cfg80211_send_assoc_timeout(wk->sdata->dev, wk->filter_ta);
+ return WORK_DONE_DESTROY;
+ }
+
+ mgmt = (void *)skb->data;
+ status = le16_to_cpu(mgmt->u.assoc_resp.status_code);
+
+ if (status == WLAN_STATUS_SUCCESS) {
+ mutex_lock(&wk->sdata->u.mgd.mtx);
+ if (!ieee80211_assoc_success(wk, mgmt, skb->len)) {
+ mutex_unlock(&wk->sdata->u.mgd.mtx);
+ /* oops -- internal error -- send timeout for now */
+ cfg80211_send_assoc_timeout(wk->sdata->dev,
+ wk->filter_ta);
+ return WORK_DONE_DESTROY;
+ }
+ mutex_unlock(&wk->sdata->u.mgd.mtx);
}
- return ieee80211_sta_commit(sdata);
+ cfg80211_send_rx_assoc(wk->sdata->dev, skb->data, skb->len);
+ return WORK_DONE_DESTROY;
}
-int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
- const char *ie, size_t len)
+int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_assoc_request *req)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_bss *bss = (void *)req->bss->priv;
+ struct ieee80211_work *wk;
+ const u8 *ssid;
+ int i;
- if (len == 0 && ifmgd->extra_ie_len == 0)
+ mutex_lock(&ifmgd->mtx);
+ if (ifmgd->associated) {
+ mutex_unlock(&ifmgd->mtx);
return -EALREADY;
+ }
+ mutex_unlock(&ifmgd->mtx);
- if (len == ifmgd->extra_ie_len && ifmgd->extra_ie &&
- memcmp(ifmgd->extra_ie, ie, len) == 0)
- return -EALREADY;
+ wk = kzalloc(sizeof(*wk) + req->ie_len, GFP_KERNEL);
+ if (!wk)
+ return -ENOMEM;
- kfree(ifmgd->extra_ie);
- if (len == 0) {
- ifmgd->extra_ie = NULL;
- ifmgd->extra_ie_len = 0;
- return 0;
+ ifmgd->flags &= ~IEEE80211_STA_DISABLE_11N;
+
+ 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)
+ ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+
+
+ if (req->ie && req->ie_len) {
+ memcpy(wk->ie, req->ie, req->ie_len);
+ wk->ie_len = req->ie_len;
+ } else
+ wk->ie_len = 0;
+
+ wk->assoc.bss = req->bss;
+
+ memcpy(wk->filter_ta, req->bss->bssid, ETH_ALEN);
+
+ /* new association always uses requested smps mode */
+ if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) {
+ if (ifmgd->powersave)
+ ifmgd->ap_smps = IEEE80211_SMPS_DYNAMIC;
+ else
+ ifmgd->ap_smps = IEEE80211_SMPS_OFF;
+ } else
+ ifmgd->ap_smps = ifmgd->req_smps;
+
+ wk->assoc.smps = ifmgd->ap_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.
+ */
+ wk->assoc.use_11n = !(ifmgd->flags & IEEE80211_STA_DISABLE_11N);
+ wk->assoc.capability = req->bss->capability;
+ wk->assoc.wmm_used = bss->wmm_used;
+ wk->assoc.supp_rates = bss->supp_rates;
+ wk->assoc.supp_rates_len = bss->supp_rates_len;
+ wk->assoc.ht_information_ie =
+ ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_INFORMATION);
+
+ if (bss->wmm_used && bss->uapsd_supported &&
+ (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
+ wk->assoc.uapsd_used = true;
+ ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
+ } else {
+ wk->assoc.uapsd_used = false;
+ ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED;
}
- ifmgd->extra_ie = kmalloc(len, GFP_KERNEL);
- if (!ifmgd->extra_ie) {
- ifmgd->extra_ie_len = 0;
- return -ENOMEM;
+
+ ssid = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
+ memcpy(wk->assoc.ssid, ssid + 2, ssid[1]);
+ wk->assoc.ssid_len = ssid[1];
+
+ if (req->prev_bssid)
+ memcpy(wk->assoc.prev_bssid, req->prev_bssid, ETH_ALEN);
+
+ wk->type = IEEE80211_WORK_ASSOC;
+ wk->chan = req->bss->channel;
+ wk->sdata = sdata;
+ wk->done = ieee80211_assoc_done;
+
+ if (req->use_mfp) {
+ ifmgd->mfp = IEEE80211_MFP_REQUIRED;
+ ifmgd->flags |= IEEE80211_STA_MFP_ENABLED;
+ } else {
+ ifmgd->mfp = IEEE80211_MFP_DISABLED;
+ ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED;
}
- memcpy(ifmgd->extra_ie, ie, len);
- ifmgd->extra_ie_len = len;
+
+ if (req->crypto.control_port)
+ ifmgd->flags |= IEEE80211_STA_CONTROL_PORT;
+ else
+ ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT;
+
+ ieee80211_add_work(wk);
return 0;
}
-int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason)
+int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_deauth_request *req,
+ void *cookie)
{
- printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n",
- sdata->dev->name, reason);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_work *wk;
+ const u8 *bssid = req->bss->bssid;
+
+ mutex_lock(&ifmgd->mtx);
+
+ if (ifmgd->associated == req->bss) {
+ bssid = req->bss->bssid;
+ ieee80211_set_disassoc(sdata);
+ mutex_unlock(&ifmgd->mtx);
+ } else {
+ bool not_auth_yet = false;
+
+ mutex_unlock(&ifmgd->mtx);
+
+ mutex_lock(&local->work_mtx);
+ list_for_each_entry(wk, &local->work_list, list) {
+ if (wk->type != IEEE80211_WORK_DIRECT_PROBE)
+ continue;
+ if (memcmp(req->bss->bssid, wk->filter_ta, ETH_ALEN))
+ continue;
+ not_auth_yet = true;
+ list_del(&wk->list);
+ free_work(wk);
+ break;
+ }
+ mutex_unlock(&local->work_mtx);
+
+ /*
+ * If somebody requests authentication and we haven't
+ * sent out an auth frame yet there's no need to send
+ * out a deauth frame either. If the state was PROBE,
+ * then this is the case. If it's AUTH we have sent a
+ * frame, and if it's IDLE we have completed the auth
+ * process already.
+ */
+ if (not_auth_yet) {
+ __cfg80211_auth_canceled(sdata->dev, bssid);
+ return 0;
+ }
+ }
+
+ 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_recalc_idle(sdata->local);
- ieee80211_set_disassoc(sdata, true, true, reason);
return 0;
}
-int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
+int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_disassoc_request *req,
+ void *cookie)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
- sdata->dev->name, reason);
+ mutex_lock(&ifmgd->mtx);
- if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED))
+ /*
+ * cfg80211 should catch this ... but it's racy since
+ * we can receive a disassoc frame, process it, hand it
+ * to cfg80211 while that's in a locked section already
+ * trying to tell us that the user wants to disconnect.
+ */
+ if (ifmgd->associated != req->bss) {
+ mutex_unlock(&ifmgd->mtx);
return -ENOLINK;
+ }
- ieee80211_set_disassoc(sdata, false, true, reason);
- return 0;
-}
+ printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n",
+ sdata->name, req->bss->bssid, req->reason_code);
-/* scan finished notification */
-void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
-{
- struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+ ieee80211_set_disassoc(sdata);
- /* Restart STA timers */
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list)
- ieee80211_restart_sta_timer(sdata);
- rcu_read_unlock();
-}
+ mutex_unlock(&ifmgd->mtx);
-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);
+ ieee80211_send_deauth_disassoc(sdata, req->bss->bssid,
+ IEEE80211_STYPE_DISASSOC, req->reason_code,
+ cookie);
- mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, latency_usec);
- mutex_unlock(&local->iflist_mtx);
+ ieee80211_recalc_idle(sdata->local);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff