static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
struct ieee80211_supported_band *sband,
- u64 *rates)
+ u32 *rates)
{
int i, j, count;
*rates = 0;
}
/* also used by mesh code */
-u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems,
enum ieee80211_band band)
{
struct ieee80211_supported_band *sband;
struct ieee80211_rate *bitrates;
size_t num_rates;
- u64 supp_rates;
+ u32 supp_rates;
int i, j;
sband = local->hw.wiphy->bands[band];
/* frame sending functions */
+static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
+{
+ if (ies)
+ memcpy(skb_put(skb, ies_len), ies, ies_len);
+}
+
/* also used by scanning code */
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
u8 *ssid, size_t ssid_len)
u8 *pos, *supp_rates, *esupp_rates = NULL;
int i;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
+ sdata->u.sta.ie_probereq_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
"request\n", sdata->dev->name);
*pos = rate->bitrate / 5;
}
+ add_extra_ies(skb, sdata->u.sta.ie_probereq,
+ sdata->u.sta.ie_probereq_len);
+
ieee80211_tx_skb(sdata, skb, 0);
}
struct ieee80211_mgmt *mgmt;
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 6 + extra_len);
+ sizeof(*mgmt) + 6 + extra_len +
+ sdata->u.sta.ie_auth_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
"frame\n", sdata->dev->name);
mgmt->u.auth.status_code = cpu_to_le16(0);
if (extra)
memcpy(skb_put(skb, extra_len), extra, extra_len);
+ add_extra_ies(skb, sdata->u.sta.ie_auth, sdata->u.sta.ie_auth_len);
ieee80211_tx_skb(sdata, skb, encrypt);
}
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies, *ht_ie;
+ u8 *pos, *ies, *ht_ie, *e_ies;
int i, len, count, rates_len, supp_rates_len;
u16 capab;
struct ieee80211_bss *bss;
int wmm = 0;
struct ieee80211_supported_band *sband;
- u64 rates = 0;
+ u32 rates = 0;
+ size_t e_ies_len;
+
+ if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+ e_ies = sdata->u.sta.ie_reassocreq;
+ e_ies_len = sdata->u.sta.ie_reassocreq_len;
+ } else {
+ e_ies = sdata->u.sta.ie_assocreq;
+ e_ies_len = sdata->u.sta.ie_assocreq_len;
+ }
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
- ifsta->ssid_len);
+ ifsta->ssid_len + e_ies_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
"frame\n", sdata->dev->name);
memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
}
+ add_extra_ies(skb, e_ies, e_ies_len);
+
kfree(ifsta->assocreq_ies);
ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
+ u8 *ies;
+ size_t ies_len;
+
+ if (stype == IEEE80211_STYPE_DEAUTH) {
+ ies = sdata->u.sta.ie_deauth;
+ ies_len = sdata->u.sta.ie_deauth_len;
+ } else {
+ ies = sdata->u.sta.ie_disassoc;
+ ies_len = sdata->u.sta.ie_disassoc_len;
+ }
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
+ ies_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for "
"deauth/disassoc frame\n", sdata->dev->name);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
+ add_extra_ies(skb, ies, ies_len);
+
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)
}
}
-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;
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();
/* channel(_type) changes are handled by ieee80211_hw_config */
local->oper_channel_type = NL80211_CHAN_NO_HT;
+ local->power_constr_level = 0;
+
del_timer_sync(&local->dynamic_ps_timer);
cancel_work_sync(&local->dynamic_ps_enable_work);
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 ieee80211_supported_band *sband;
struct sta_info *sta;
- u64 rates, basic_rates;
+ u32 rates, basic_rates;
u16 capab_info, status_code, aid;
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
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(&ifsta->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);
"set\n", sdata->dev->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);
struct ieee80211_bss *bss)
{
struct ieee80211_local *local = sdata->local;
- int res, rates, i, j;
+ int res = 0, rates, i, j;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
union iwreq_data wrqu;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+ if (local->ops->reset_tsf) {
+ /* Reset own TSF to allow time synchronization work. */
+ local->ops->reset_tsf(local_to_hw(local));
+ }
+
+ if ((ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) &&
+ memcmp(ifsta->bssid, bss->bssid, ETH_ALEN) == 0)
+ return res;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
+ sdata->u.sta.ie_proberesp_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
"response\n", sdata->dev->name);
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- /* Remove possible STA entries from other IBSS networks. */
- sta_info_flush_delayed(sdata);
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
+ 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);
res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
if (res)
memcpy(pos, &bss->supp_rates[8], rates);
}
+ add_extra_ies(skb, sdata->u.sta.ie_proberesp,
+ sdata->u.sta.ie_proberesp_len);
+
ifsta->probe_resp = skb;
- ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+ ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
+ IEEE80211_IFCC_BEACON_ENABLED);
rates = 0;
ieee80211_sta_def_wmm_params(sdata, bss);
+ ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
struct sta_info *sta;
struct ieee80211_channel *channel;
u64 beacon_timestamp, rx_timestamp;
- u64 supp_rates = 0;
+ u32 supp_rates = 0;
enum ieee80211_band band = rx_status->band;
if (elems->ds_params && elems->ds_params_len == 1)
sta = sta_info_get(local, mgmt->sa);
if (sta) {
- u64 prev_rates;
+ u32 prev_rates;
prev_rates = sta->sta.supp_rates[band];
/* make sure mandatory rates are always added */
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);
+ }
}
}
* 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,
+ le16_to_cpu(mgmt->u.probe_resp.capab_info),
+ elems.pwr_constr_elem,
+ elems.pwr_constr_elem_len);
}
ieee80211_bss_info_change_notify(sdata, changed);
int i;
int ret;
-#if 0
- /* Easier testing, use fixed BSSID. */
- memset(bssid, 0xfe, ETH_ALEN);
-#else
- /* Generate random, not broadcast, locally administered BSSID. Mix in
- * own MAC address to make sure that devices that do not have proper
- * random number generator get different BSSID. */
- get_random_bytes(bssid, ETH_ALEN);
- for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= sdata->dev->dev_addr[i];
- bssid[0] &= ~0x01;
- bssid[0] |= 0x02;
-#endif
+ if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) {
+ memcpy(bssid, ifsta->bssid, ETH_ALEN);
+ } else {
+ /* Generate random, not broadcast, locally administered BSSID. Mix in
+ * own MAC address to make sure that devices that do not have proper
+ * random number generator get different BSSID. */
+ get_random_bytes(bssid, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++)
+ bssid[i] ^= sdata->dev->dev_addr[i];
+ bssid[0] &= ~0x01;
+ bssid[0] |= 0x02;
+ }
printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
sdata->dev->name, bssid);
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 */
"%pM\n", bssid, ifsta->bssid);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
+ if (found &&
+ ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
+ memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0)) {
int ret;
int search_freq;
ifsta->ssid_len);
ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- } else
+ } else {
+ ifsta->assoc_scan_tries = 0;
ifsta->state = IEEE80211_STA_MLME_DISABLED;
+ }
}
return -1;
}
* must be callable in atomic context.
*/
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
- u8 *bssid,u8 *addr, u64 supp_rates)
+ u8 *bssid,u8 *addr, u32 supp_rates)
{
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
memset(ifsta->ssid, 0, sizeof(ifsta->ssid));
memcpy(ifsta->ssid, ssid, len);
ifsta->ssid_len = len;
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
}
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+
if (len)
ifsta->flags |= IEEE80211_STA_SSID_SET;
else
ifsta->flags &= ~IEEE80211_STA_SSID_SET;
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
- !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
ifsta->ibss_join_req = jiffies;
ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
return ieee80211_sta_find_ibss(sdata, ifsta);
int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
{
struct ieee80211_if_sta *ifsta;
- int res;
- bool valid;
ifsta = &sdata->u.sta;
- valid = is_valid_ether_addr(bssid);
- if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
- if(valid)
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- else
- memset(ifsta->bssid, 0, ETH_ALEN);
- res = 0;
- /*
- * Hack! See also ieee80211_sta_set_ssid.
- */
- if (netif_running(sdata->dev))
- res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
- if (res) {
+ if (is_valid_ether_addr(bssid)) {
+ memcpy(ifsta->bssid, bssid, ETH_ALEN);
+ ifsta->flags |= IEEE80211_STA_BSSID_SET;
+ } else {
+ memset(ifsta->bssid, 0, ETH_ALEN);
+ ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+ }
+
+ if (netif_running(sdata->dev)) {
+ if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
printk(KERN_DEBUG "%s: Failed to config new BSSID to "
"the low-level driver\n", sdata->dev->name);
- return res;
}
}
- if (valid)
- ifsta->flags |= IEEE80211_STA_BSSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
-
- return 0;
+ return ieee80211_sta_set_ssid(sdata, ifsta->ssid, ifsta->ssid_len);
}
int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
ifsta = &sdata->u.sta;
- if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
- (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
- !ieee80211_sta_active_ibss(sdata)))
+ if ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
+ !ieee80211_sta_active_ibss(sdata))
ieee80211_sta_find_ibss(sdata, ifsta);
}