{
u8 *end, *pos;
- pos = bss->ies;
+ pos = bss->cbss.information_elements;
if (pos == NULL)
return NULL;
- end = pos + bss->ies_len;
+ end = pos + bss->cbss.len_information_elements;
while (pos + 1 < end) {
if (pos + 2 + pos[1] > end)
local->hw.conf.channel->center_freq,
ifsta->ssid, ifsta->ssid_len);
if (bss) {
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ if (bss->cbss.capability & WLAN_CAPABILITY_PRIVACY)
capab |= WLAN_CAPABILITY_PRIVACY;
if (bss->wmm_used)
wmm = 1;
* b-only mode) */
rates_len = ieee80211_compatible_rates(bss, sband, &rates);
- if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
+ if ((bss->cbss.capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
(local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
ieee80211_tx_skb(sdata, skb, ifsta->flags & IEEE80211_STA_MFP_ENABLED);
}
+void ieee80211_send_pspoll(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ 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);
+ 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(ifsta->aid);
+
+ /* aid in PS-Poll has its two MSBs each set to 1 */
+ pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
+
+ memcpy(pspoll->bssid, ifsta->bssid, ETH_ALEN);
+ memcpy(pspoll->ta, sdata->dev->dev_addr, ETH_ALEN);
+
+ ieee80211_tx_skb(sdata, skb, 0);
+
+ return;
+}
+
/* MLME */
static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_bss *bss)
+ const size_t supp_rates_len,
+ const u8 *supp_rates)
{
struct ieee80211_local *local = sdata->local;
int i, have_higher_than_11mbit = 0;
/* cf. IEEE 802.11 9.2.12 */
- for (i = 0; i < bss->supp_rates_len; i++)
- if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
+ for (i = 0; i < supp_rates_len; i++)
+ if ((supp_rates[i] & 0x7f) * 5 > 110)
have_higher_than_11mbit = 1;
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
}
}
-static bool check_tim(struct ieee802_11_elems *elems, u16 aid, bool *is_mc)
+static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
{
u8 mask;
u8 index, indexn1, indexn2;
index = aid / 8;
mask = 1 << (aid & 7);
- if (tim->bitmap_ctrl & 0x01)
- *is_mc = true;
-
indexn1 = tim->bitmap_ctrl & 0xfe;
indexn2 = elems->tim_len + indexn1 - 4;
ifsta->ssid, ifsta->ssid_len);
if (bss) {
/* set timing information */
- sdata->vif.bss_conf.beacon_int = bss->beacon_int;
- sdata->vif.bss_conf.timestamp = bss->timestamp;
+ 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 |= ieee80211_handle_bss_capability(sdata,
- bss->capability, bss->has_erp_value, bss->erp_value);
+ bss->cbss.capability, bss->has_erp_value, bss->erp_value);
ieee80211_rx_bss_put(local, bss);
}
sdata->dev->name, ifsta->bssid);
ifsta->state = IEEE80211_STA_MLME_DISABLED;
ieee80211_sta_send_apinfo(sdata, ifsta);
+
+ /*
+ * Most likely AP is not in the range so remove the
+ * bss information associated to the AP
+ */
+ ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ sdata->local->hw.conf.channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
return;
}
sdata->dev->name, ifsta->bssid);
ifsta->state = IEEE80211_STA_MLME_DISABLED;
ieee80211_sta_send_apinfo(sdata, ifsta);
+ ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ sdata->local->hw.conf.channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
return;
}
netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
- ieee80211_sta_tear_down_BA_sessions(sdata, sta->sta.addr);
+ ieee80211_sta_tear_down_BA_sessions(sta);
if (self_disconnected) {
if (deauth)
ieee80211_sta_send_apinfo(sdata, ifsta);
- if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT)
+ if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT) {
ifsta->state = IEEE80211_STA_MLME_DISABLED;
+ ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ sdata->local->hw.conf.channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
+ }
rcu_read_unlock();
if (!bss)
return 0;
- bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY);
+ bss_privacy = !!(bss->cbss.capability & WLAN_CAPABILITY_PRIVACY);
wep_privacy = !!ieee80211_sta_wep_configured(sdata);
privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
sdata->dev->name, ifsta->bssid);
ifsta->state = IEEE80211_STA_MLME_DISABLED;
ieee80211_sta_send_apinfo(sdata, ifsta);
+ ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ sdata->local->hw.conf.channel->center_freq,
+ ifsta->ssid, ifsta->ssid_len);
return;
}
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int disassoc;
- bool remove_bss = false;
/* TODO: start monitoring current AP signal quality and number of
* missed beacons. Scan other channels every now and then and search
"range\n",
sdata->dev->name, ifsta->bssid);
disassoc = 1;
- remove_bss = true;
} else
ieee80211_send_probe_req(sdata, ifsta->bssid,
ifsta->ssid,
rcu_read_unlock();
- if (disassoc) {
+ if (disassoc)
ieee80211_set_disassoc(sdata, ifsta, true, true,
WLAN_REASON_PREV_AUTH_NOT_VALID);
- if (remove_bss) {
- struct ieee80211_bss *bss;
-
- bss = ieee80211_rx_bss_get(local, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- atomic_dec(&bss->users);
- ieee80211_rx_bss_put(local, bss);
- }
- }
- } else {
+ else
mod_timer(&ifsta->timer, jiffies +
IEEE80211_MONITORING_INTERVAL);
- }
}
/* Add STA entry for the AP */
sta = sta_info_get(local, ifsta->bssid);
if (!sta) {
- struct ieee80211_bss *bss;
-
newsta = true;
sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC);
rcu_read_unlock();
return;
}
- bss = ieee80211_rx_bss_get(local, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- sta->last_signal = bss->signal;
- sta->last_qual = bss->qual;
- sta->last_noise = bss->noise;
- ieee80211_rx_bss_put(local, bss);
- }
/* update new sta with its last rx activity */
sta->last_rx = jiffies;
}
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_bss *bss)
+static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta,
+ const u8 *bssid, const int beacon_int,
+ const int freq,
+ const size_t supp_rates_len,
+ const u8 *supp_rates,
+ const u16 capability)
{
struct ieee80211_local *local = sdata->local;
int res = 0, rates, i, j;
}
if ((ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) &&
- memcmp(ifsta->bssid, bss->bssid, ETH_ALEN) == 0)
+ memcmp(ifsta->bssid, bssid, ETH_ALEN) == 0)
return res;
skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
return -ENOMEM;
}
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
if (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) {
/* Remove possible STA entries from other IBSS networks. */
sta_info_flush_delayed(sdata);
}
- memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
+ memcpy(ifsta->bssid, bssid, ETH_ALEN);
res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
if (res)
return res;
- local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
+ local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
- sdata->drop_unencrypted = bss->capability &
+ sdata->drop_unencrypted = capability &
WLAN_CAPABILITY_PRIVACY ? 1 : 0;
- res = ieee80211_set_freq(sdata, bss->freq);
+ res = ieee80211_set_freq(sdata, freq);
if (res)
return res;
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
/* Build IBSS probe response */
skb_reserve(skb, local->hw.extra_tx_headroom);
skb_put(skb, 24 + sizeof(mgmt->u.beacon));
memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
+ IEEE80211_STYPE_PROBE_RESP);
memset(mgmt->da, 0xff, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
mgmt->u.beacon.beacon_int =
cpu_to_le16(local->hw.conf.beacon_int);
- mgmt->u.beacon.timestamp = cpu_to_le64(bss->timestamp);
- mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
+ mgmt->u.beacon.capab_info = cpu_to_le16(capability);
pos = skb_put(skb, 2 + ifsta->ssid_len);
*pos++ = WLAN_EID_SSID;
*pos++ = ifsta->ssid_len;
memcpy(pos, ifsta->ssid, ifsta->ssid_len);
- rates = bss->supp_rates_len;
+ rates = supp_rates_len;
if (rates > 8)
rates = 8;
pos = skb_put(skb, 2 + rates);
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = rates;
- memcpy(pos, bss->supp_rates, rates);
+ memcpy(pos, supp_rates, rates);
- if (bss->band == IEEE80211_BAND_2GHZ) {
+ if (sband->band == IEEE80211_BAND_2GHZ) {
pos = skb_put(skb, 2 + 1);
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
- *pos++ = ieee80211_frequency_to_channel(bss->freq);
+ *pos++ = ieee80211_frequency_to_channel(freq);
}
pos = skb_put(skb, 2 + 2);
*pos++ = 0;
*pos++ = 0;
- if (bss->supp_rates_len > 8) {
- rates = bss->supp_rates_len - 8;
+ if (supp_rates_len > 8) {
+ rates = supp_rates_len - 8;
pos = skb_put(skb, 2 + rates);
*pos++ = WLAN_EID_EXT_SUPP_RATES;
*pos++ = rates;
- memcpy(pos, &bss->supp_rates[8], rates);
+ memcpy(pos, &supp_rates[8], rates);
}
add_extra_ies(skb, sdata->u.sta.ie_proberesp,
rates = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- for (i = 0; i < bss->supp_rates_len; i++) {
- int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
+ for (i = 0; i < supp_rates_len; i++) {
+ int bitrate = (supp_rates[i] & 0x7f) * 5;
for (j = 0; j < sband->n_bitrates; j++)
if (sband->bitrates[j].bitrate == bitrate)
rates |= BIT(j);
}
ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
- ieee80211_sta_def_wmm_params(sdata, bss);
+ ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
ieee80211_led_assoc(local, true);
memset(&wrqu, 0, sizeof(wrqu));
- memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+ memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
return res;
}
+static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_bss *bss)
+{
+ return __ieee80211_sta_join_ibss(sdata, ifsta,
+ bss->cbss.bssid,
+ bss->cbss.beacon_interval,
+ bss->cbss.channel->center_freq,
+ bss->supp_rates_len, bss->supp_rates,
+ bss->cbss.capability);
+}
+
static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len,
}
bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
- freq, beacon);
+ channel, beacon);
if (!bss)
return;
}
/* was just updated in ieee80211_bss_info_update */
- beacon_timestamp = bss->timestamp;
+ beacon_timestamp = bss->cbss.tsf;
/*
* In STA mode, the remaining parameters should not be overridden
/* check if we need to merge IBSS */
if (sdata->vif.type == NL80211_IFTYPE_ADHOC && beacon &&
(!(sdata->u.sta.flags & IEEE80211_STA_BSSID_SET)) &&
- bss->capability & WLAN_CAPABILITY_IBSS &&
- bss->freq == local->oper_channel->center_freq &&
+ bss->cbss.capability & WLAN_CAPABILITY_IBSS &&
+ bss->cbss.channel == local->oper_channel &&
elems->ssid_len == sdata->u.sta.ssid_len &&
memcmp(elems->ssid, sdata->u.sta.ssid,
sdata->u.sta.ssid_len) == 0) {
struct ieee802_11_elems elems;
struct ieee80211_local *local = sdata->local;
u32 changed = 0;
- bool erp_valid, directed_tim, is_mc = false;
+ bool erp_valid, directed_tim;
u8 erp_value = 0;
/* Process beacon from the current BSS */
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK &&
local->hw.conf.flags & IEEE80211_CONF_PS) {
- directed_tim = check_tim(&elems, ifsta->aid, &is_mc);
-
- if (directed_tim || is_mc) {
- local->hw.conf.flags &= ~IEEE80211_CONF_PS;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
- ieee80211_send_nullfunc(local, sdata, 0);
+ directed_tim = ieee80211_check_tim(&elems, ifsta->aid);
+
+ if (directed_tim) {
+ if (local->hw.conf.dynamic_ps_timeout > 0) {
+ local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+ ieee80211_hw_config(local,
+ IEEE80211_CONF_CHANGE_PS);
+ ieee80211_send_nullfunc(local, sdata, 0);
+ } else {
+ local->pspolling = true;
+
+ /*
+ * Here is assumed that the driver will be
+ * able to send ps-poll frame and receive a
+ * response even though power save mode is
+ * enabled, but some drivers might require
+ * to disable power save here. This needs
+ * to be investigated.
+ */
+ ieee80211_send_pspoll(local, sdata);
+ }
}
}
printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
"IBSS networks with same SSID (merge)\n", sdata->dev->name);
- ieee80211_request_scan(sdata, ifsta->ssid, ifsta->ssid_len);
+
+ /* XXX maybe racy? */
+ if (sdata->local->scan_req)
+ return;
+
+ memcpy(sdata->local->int_scan_req.ssids[0].ssid,
+ ifsta->ssid, IEEE80211_MAX_SSID_LEN);
+ sdata->local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+ ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
}
netif_carrier_off(sdata->dev);
}
-
-static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
- const char *ssid, int ssid_len)
-{
- int tmp, hidden_ssid;
-
- if (ssid_len == ifsta->ssid_len &&
- !memcmp(ifsta->ssid, ssid, ssid_len))
- return 1;
-
- if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
- return 0;
-
- hidden_ssid = 1;
- tmp = ssid_len;
- while (tmp--) {
- if (ssid[tmp] != '\0') {
- hidden_ssid = 0;
- break;
- }
- }
-
- if (hidden_ssid && (ifsta->ssid_len == ssid_len || ssid_len == 0))
- return 1;
-
- if (ssid_len == 1 && ssid[0] == ' ')
- return 1;
-
- return 0;
-}
-
static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_bss *bss;
struct ieee80211_supported_band *sband;
- u8 bssid[ETH_ALEN], *pos;
+ u8 *pos;
+ u8 bssid[ETH_ALEN];
+ u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
+ u16 capability;
int i;
- int ret;
if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) {
memcpy(bssid, ifsta->bssid, ETH_ALEN);
printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
sdata->dev->name, bssid);
- bss = ieee80211_rx_bss_add(local, bssid,
- local->hw.conf.channel->center_freq,
- sdata->u.sta.ssid, sdata->u.sta.ssid_len);
- if (!bss)
- return -ENOMEM;
-
- bss->band = local->hw.conf.channel->band;
- sband = local->hw.wiphy->bands[bss->band];
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
if (local->hw.conf.beacon_int == 0)
local->hw.conf.beacon_int = 100;
- bss->beacon_int = local->hw.conf.beacon_int;
- bss->last_update = jiffies;
- bss->capability = WLAN_CAPABILITY_IBSS;
+
+ capability = WLAN_CAPABILITY_IBSS;
if (sdata->default_key)
- bss->capability |= WLAN_CAPABILITY_PRIVACY;
+ capability |= WLAN_CAPABILITY_PRIVACY;
else
sdata->drop_unencrypted = 0;
- bss->supp_rates_len = sband->n_bitrates;
- pos = bss->supp_rates;
+ pos = supp_rates;
for (i = 0; i < sband->n_bitrates; i++) {
int rate = sband->bitrates[i].bitrate;
*pos++ = (u8) (rate / 5);
}
- ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
- ieee80211_rx_bss_put(local, bss);
- return ret;
+ return __ieee80211_sta_join_ibss(sdata, ifsta,
+ bssid, local->hw.conf.beacon_int,
+ local->hw.conf.channel->center_freq,
+ sband->n_bitrates, supp_rates,
+ capability);
}
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss *bss;
- int found = 0;
- u8 bssid[ETH_ALEN];
int active_ibss;
if (ifsta->ssid_len == 0)
printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
sdata->dev->name, active_ibss);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- spin_lock_bh(&local->bss_lock);
- list_for_each_entry(bss, &local->bss_list, list) {
- if (ifsta->ssid_len != bss->ssid_len ||
- memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
- || !(bss->capability & WLAN_CAPABILITY_IBSS))
- continue;
- if ((ifsta->flags & IEEE80211_STA_BSSID_SET) &&
- memcmp(ifsta->bssid, bss->bssid, ETH_ALEN) != 0)
- continue;
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " bssid=%pM found\n", bss->bssid);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- memcpy(bssid, bss->bssid, ETH_ALEN);
- found = 1;
- if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
- break;
- }
- spin_unlock_bh(&local->bss_lock);
+
+ if (active_ibss)
+ return 0;
+
+ if (ifsta->flags & IEEE80211_STA_BSSID_SET)
+ bss = ieee80211_rx_bss_get(local, ifsta->bssid, 0,
+ ifsta->ssid, ifsta->ssid_len);
+ else
+ bss = (void *)cfg80211_get_ibss(local->hw.wiphy,
+ NULL,
+ ifsta->ssid, ifsta->ssid_len);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
- if (found)
+ if (bss)
printk(KERN_DEBUG " sta_find_ibss: selected %pM current "
- "%pM\n", bssid, ifsta->bssid);
+ "%pM\n", bss->cbss.bssid, ifsta->bssid);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (found &&
- ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
- memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0)) {
+ if (bss &&
+ (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) ||
+ memcmp(ifsta->bssid, bss->cbss.bssid, ETH_ALEN))) {
int ret;
- int search_freq;
-
- if (ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
- search_freq = bss->freq;
- else
- search_freq = local->hw.conf.channel->center_freq;
-
- bss = ieee80211_rx_bss_get(local, bssid, search_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (!bss)
- goto dont_join;
printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
" based on configured SSID\n",
- sdata->dev->name, bssid);
+ sdata->dev->name, bss->cbss.bssid);
+
ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
ieee80211_rx_bss_put(local, bss);
return ret;
- }
+ } else if (bss)
+ ieee80211_rx_bss_put(local, bss);
-dont_join:
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG " did not try to join ibss\n");
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
IEEE80211_SCAN_INTERVAL)) {
printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
"join\n", sdata->dev->name);
- return ieee80211_request_scan(sdata, ifsta->ssid,
- ifsta->ssid_len);
+
+ /* XXX maybe racy? */
+ if (local->scan_req)
+ return -EBUSY;
+
+ memcpy(local->int_scan_req.ssids[0].ssid,
+ ifsta->ssid, IEEE80211_MAX_SSID_LEN);
+ local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+ return ieee80211_request_scan(sdata, &local->int_scan_req);
} else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) {
int interval = IEEE80211_SCAN_INTERVAL;
struct ieee80211_if_sta *ifsta)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_bss *bss, *selected = NULL;
- int top_rssi = 0, freq;
-
- spin_lock_bh(&local->bss_lock);
- freq = local->oper_channel->center_freq;
- list_for_each_entry(bss, &local->bss_list, list) {
- if (!(bss->capability & WLAN_CAPABILITY_ESS))
- continue;
-
- if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
- (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
- !!sdata->default_key))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
- bss->freq != freq)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
- memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
- !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
- continue;
-
- if (!selected || top_rssi < bss->signal) {
- selected = bss;
- top_rssi = bss->signal;
- }
+ struct ieee80211_bss *bss;
+ u8 *bssid = ifsta->bssid, *ssid = ifsta->ssid;
+ u8 ssid_len = ifsta->ssid_len;
+ u16 capa_mask = WLAN_CAPABILITY_ESS;
+ u16 capa_val = WLAN_CAPABILITY_ESS;
+ struct ieee80211_channel *chan = local->oper_channel;
+
+ if (ifsta->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 (selected)
- atomic_inc(&selected->users);
- spin_unlock_bh(&local->bss_lock);
- if (selected) {
- ieee80211_set_freq(sdata, selected->freq);
+ if (ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
+ chan = NULL;
+
+ if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
+ bssid = NULL;
+
+ if (ifsta->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 (!(ifsta->flags & IEEE80211_STA_SSID_SET))
- ieee80211_sta_set_ssid(sdata, selected->ssid,
- selected->ssid_len);
- ieee80211_sta_set_bssid(sdata, selected->bssid);
- ieee80211_sta_def_wmm_params(sdata, selected);
+ 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.sta.mfp == IEEE80211_MFP_REQUIRED)
sdata->u.sta.flags |= IEEE80211_STA_MFP_ENABLED;
else
/* Send out direct probe if no probe resp was received or
* the one we have is outdated
*/
- if (!selected->last_probe_resp ||
- time_after(jiffies, selected->last_probe_resp
+ if (!bss->last_probe_resp ||
+ time_after(jiffies, bss->last_probe_resp
+ IEEE80211_SCAN_RESULT_EXPIRE))
ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
else
ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
- ieee80211_rx_bss_put(local, selected);
+ ieee80211_rx_bss_put(local, bss);
ieee80211_sta_reset_auth(sdata, ifsta);
return 0;
} else {
if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
ifsta->assoc_scan_tries++;
+ /* XXX maybe racy? */
+ if (local->scan_req)
+ return -1;
+ memcpy(local->int_scan_req.ssids[0].ssid,
+ ifsta->ssid, IEEE80211_MAX_SSID_LEN);
if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
- ieee80211_start_scan(sdata, NULL, 0);
+ local->int_scan_req.ssids[0].ssid_len = 0;
else
- ieee80211_start_scan(sdata, ifsta->ssid,
- ifsta->ssid_len);
+ local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+ ieee80211_start_scan(sdata, &local->int_scan_req);
ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
} else {
ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- ieee80211_start_scan(sdata, ifsta->scan_ssid,
- ifsta->scan_ssid_len);
+ ieee80211_start_scan(sdata, local->scan_req);
return;
}
git.openpandora.org / pandora-kernel.git / blobdiff