aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211/mlme.c
diff options
context:
space:
mode:
authorJonathan Corbet <corbet@lwn.net>2008-07-14 17:29:34 -0400
committerJonathan Corbet <corbet@lwn.net>2008-07-14 17:29:34 -0400
commit2fceef397f9880b212a74c418290ce69e7ac00eb (patch)
treed9cc09ab992825ef7fede4a688103503e3caf655 /net/mac80211/mlme.c
parentfeae1ef116ed381625d3731c5ae4f4ebcb3fa302 (diff)
parentbce7f793daec3e65ec5c5705d2457b81fe7b5725 (diff)
Merge commit 'v2.6.26' into bkl-removal
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c87
1 files changed, 50 insertions, 37 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4adba09e80ca..b404537c0bcd 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -44,7 +44,7 @@
44#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ) 44#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
45#define IEEE80211_SCAN_INTERVAL (2 * HZ) 45#define IEEE80211_SCAN_INTERVAL (2 * HZ)
46#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) 46#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
47#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ) 47#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
48 48
49#define IEEE80211_PROBE_DELAY (HZ / 33) 49#define IEEE80211_PROBE_DELAY (HZ / 33)
50#define IEEE80211_CHANNEL_TIME (HZ / 33) 50#define IEEE80211_CHANNEL_TIME (HZ / 33)
@@ -547,15 +547,14 @@ static void ieee80211_set_associated(struct net_device *dev,
547 sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; 547 sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
548 } 548 }
549 549
550 netif_carrier_on(dev);
551 ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; 550 ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
552 memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); 551 memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
553 memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); 552 memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
554 ieee80211_sta_send_associnfo(dev, ifsta); 553 ieee80211_sta_send_associnfo(dev, ifsta);
555 } else { 554 } else {
555 netif_carrier_off(dev);
556 ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid); 556 ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid);
557 ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; 557 ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
558 netif_carrier_off(dev);
559 ieee80211_reset_erp_info(dev); 558 ieee80211_reset_erp_info(dev);
560 559
561 sdata->bss_conf.assoc_ht = 0; 560 sdata->bss_conf.assoc_ht = 0;
@@ -569,6 +568,10 @@ static void ieee80211_set_associated(struct net_device *dev,
569 568
570 sdata->bss_conf.assoc = assoc; 569 sdata->bss_conf.assoc = assoc;
571 ieee80211_bss_info_change_notify(sdata, changed); 570 ieee80211_bss_info_change_notify(sdata, changed);
571
572 if (assoc)
573 netif_carrier_on(dev);
574
572 wrqu.ap_addr.sa_family = ARPHRD_ETHER; 575 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
573 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); 576 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
574} 577}
@@ -730,7 +733,17 @@ static void ieee80211_send_assoc(struct net_device *dev,
730 if (bss->wmm_ie) { 733 if (bss->wmm_ie) {
731 wmm = 1; 734 wmm = 1;
732 } 735 }
736
737 /* get all rates supported by the device and the AP as
738 * some APs don't like getting a superset of their rates
739 * in the association request (e.g. D-Link DAP 1353 in
740 * b-only mode) */
741 rates_len = ieee80211_compatible_rates(bss, sband, &rates);
742
733 ieee80211_rx_bss_put(dev, bss); 743 ieee80211_rx_bss_put(dev, bss);
744 } else {
745 rates = ~0;
746 rates_len = sband->n_bitrates;
734 } 747 }
735 748
736 mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); 749 mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
@@ -761,10 +774,7 @@ static void ieee80211_send_assoc(struct net_device *dev,
761 *pos++ = ifsta->ssid_len; 774 *pos++ = ifsta->ssid_len;
762 memcpy(pos, ifsta->ssid, ifsta->ssid_len); 775 memcpy(pos, ifsta->ssid, ifsta->ssid_len);
763 776
764 /* all supported rates should be added here but some APs 777 /* add all rates which were marked to be used above */
765 * (e.g. D-Link DAP 1353 in b-only mode) don't like that
766 * Therefore only add rates the AP supports */
767 rates_len = ieee80211_compatible_rates(bss, sband, &rates);
768 supp_rates_len = rates_len; 778 supp_rates_len = rates_len;
769 if (supp_rates_len > 8) 779 if (supp_rates_len > 8)
770 supp_rates_len = 8; 780 supp_rates_len = 8;
@@ -1318,7 +1328,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
1318 1328
1319 /* prepare reordering buffer */ 1329 /* prepare reordering buffer */
1320 tid_agg_rx->reorder_buf = 1330 tid_agg_rx->reorder_buf =
1321 kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC); 1331 kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
1322 if (!tid_agg_rx->reorder_buf) { 1332 if (!tid_agg_rx->reorder_buf) {
1323 if (net_ratelimit()) 1333 if (net_ratelimit())
1324 printk(KERN_ERR "can not allocate reordering buffer " 1334 printk(KERN_ERR "can not allocate reordering buffer "
@@ -1327,7 +1337,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
1327 goto end; 1337 goto end;
1328 } 1338 }
1329 memset(tid_agg_rx->reorder_buf, 0, 1339 memset(tid_agg_rx->reorder_buf, 0,
1330 buf_size * sizeof(struct sk_buf *)); 1340 buf_size * sizeof(struct sk_buff *));
1331 1341
1332 if (local->ops->ampdu_action) 1342 if (local->ops->ampdu_action)
1333 ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START, 1343 ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
@@ -1607,7 +1617,7 @@ void sta_addba_resp_timer_expired(unsigned long data)
1607 * only one argument, and both sta_info and TID are needed, so init 1617 * only one argument, and both sta_info and TID are needed, so init
1608 * flow in sta_info_create gives the TID as data, while the timer_to_id 1618 * flow in sta_info_create gives the TID as data, while the timer_to_id
1609 * array gives the sta through container_of */ 1619 * array gives the sta through container_of */
1610 u16 tid = *(int *)data; 1620 u16 tid = *(u8 *)data;
1611 struct sta_info *temp_sta = container_of((void *)data, 1621 struct sta_info *temp_sta = container_of((void *)data,
1612 struct sta_info, timer_to_tid[tid]); 1622 struct sta_info, timer_to_tid[tid]);
1613 1623
@@ -1655,7 +1665,7 @@ timer_expired_exit:
1655void sta_rx_agg_session_timer_expired(unsigned long data) 1665void sta_rx_agg_session_timer_expired(unsigned long data)
1656{ 1666{
1657 /* not an elegant detour, but there is no choice as the timer passes 1667 /* not an elegant detour, but there is no choice as the timer passes
1658 * only one argument, and verious sta_info are needed here, so init 1668 * only one argument, and various sta_info are needed here, so init
1659 * flow in sta_info_create gives the TID as data, while the timer_to_id 1669 * flow in sta_info_create gives the TID as data, while the timer_to_id
1660 * array gives the sta through container_of */ 1670 * array gives the sta through container_of */
1661 u8 *ptid = (u8 *)data; 1671 u8 *ptid = (u8 *)data;
@@ -2329,6 +2339,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
2329 u8 *pos; 2339 u8 *pos;
2330 struct ieee80211_sub_if_data *sdata; 2340 struct ieee80211_sub_if_data *sdata;
2331 struct ieee80211_supported_band *sband; 2341 struct ieee80211_supported_band *sband;
2342 union iwreq_data wrqu;
2332 2343
2333 sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; 2344 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
2334 2345
@@ -2351,13 +2362,10 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
2351 sdata->drop_unencrypted = bss->capability & 2362 sdata->drop_unencrypted = bss->capability &
2352 WLAN_CAPABILITY_PRIVACY ? 1 : 0; 2363 WLAN_CAPABILITY_PRIVACY ? 1 : 0;
2353 2364
2354 res = ieee80211_set_freq(local, bss->freq); 2365 res = ieee80211_set_freq(dev, bss->freq);
2355 2366
2356 if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) { 2367 if (res)
2357 printk(KERN_DEBUG "%s: IBSS not allowed on frequency " 2368 return res;
2358 "%d MHz\n", dev->name, local->oper_channel->center_freq);
2359 return -1;
2360 }
2361 2369
2362 /* Set beacon template */ 2370 /* Set beacon template */
2363 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400); 2371 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
@@ -2472,7 +2480,9 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
2472 ifsta->state = IEEE80211_IBSS_JOINED; 2480 ifsta->state = IEEE80211_IBSS_JOINED;
2473 mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); 2481 mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
2474 2482
2475 ieee80211_rx_bss_put(dev, bss); 2483 memset(&wrqu, 0, sizeof(wrqu));
2484 memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN);
2485 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
2476 2486
2477 return res; 2487 return res;
2478} 2488}
@@ -3446,21 +3456,17 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
3446 struct ieee80211_sta_bss *bss, *selected = NULL; 3456 struct ieee80211_sta_bss *bss, *selected = NULL;
3447 int top_rssi = 0, freq; 3457 int top_rssi = 0, freq;
3448 3458
3449 if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
3450 IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
3451 ifsta->state = IEEE80211_AUTHENTICATE;
3452 ieee80211_sta_reset_auth(dev, ifsta);
3453 return 0;
3454 }
3455
3456 spin_lock_bh(&local->sta_bss_lock); 3459 spin_lock_bh(&local->sta_bss_lock);
3457 freq = local->oper_channel->center_freq; 3460 freq = local->oper_channel->center_freq;
3458 list_for_each_entry(bss, &local->sta_bss_list, list) { 3461 list_for_each_entry(bss, &local->sta_bss_list, list) {
3459 if (!(bss->capability & WLAN_CAPABILITY_ESS)) 3462 if (!(bss->capability & WLAN_CAPABILITY_ESS))
3460 continue; 3463 continue;
3461 3464
3462 if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^ 3465 if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
3463 !!sdata->default_key) 3466 IEEE80211_STA_AUTO_BSSID_SEL |
3467 IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
3468 (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
3469 !!sdata->default_key))
3464 continue; 3470 continue;
3465 3471
3466 if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) && 3472 if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
@@ -3485,7 +3491,7 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
3485 spin_unlock_bh(&local->sta_bss_lock); 3491 spin_unlock_bh(&local->sta_bss_lock);
3486 3492
3487 if (selected) { 3493 if (selected) {
3488 ieee80211_set_freq(local, selected->freq); 3494 ieee80211_set_freq(dev, selected->freq);
3489 if (!(ifsta->flags & IEEE80211_STA_SSID_SET)) 3495 if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
3490 ieee80211_sta_set_ssid(dev, selected->ssid, 3496 ieee80211_sta_set_ssid(dev, selected->ssid,
3491 selected->ssid_len); 3497 selected->ssid_len);
@@ -3520,6 +3526,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
3520 struct ieee80211_supported_band *sband; 3526 struct ieee80211_supported_band *sband;
3521 u8 bssid[ETH_ALEN], *pos; 3527 u8 bssid[ETH_ALEN], *pos;
3522 int i; 3528 int i;
3529 int ret;
3523 DECLARE_MAC_BUF(mac); 3530 DECLARE_MAC_BUF(mac);
3524 3531
3525#if 0 3532#if 0
@@ -3564,7 +3571,9 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
3564 *pos++ = (u8) (rate / 5); 3571 *pos++ = (u8) (rate / 5);
3565 } 3572 }
3566 3573
3567 return ieee80211_sta_join_ibss(dev, ifsta, bss); 3574 ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
3575 ieee80211_rx_bss_put(dev, bss);
3576 return ret;
3568} 3577}
3569 3578
3570 3579
@@ -3605,17 +3614,22 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
3605 spin_unlock_bh(&local->sta_bss_lock); 3614 spin_unlock_bh(&local->sta_bss_lock);
3606 3615
3607#ifdef CONFIG_MAC80211_IBSS_DEBUG 3616#ifdef CONFIG_MAC80211_IBSS_DEBUG
3608 printk(KERN_DEBUG " sta_find_ibss: selected %s current " 3617 if (found)
3609 "%s\n", print_mac(mac, bssid), print_mac(mac2, ifsta->bssid)); 3618 printk(KERN_DEBUG " sta_find_ibss: selected %s current "
3619 "%s\n", print_mac(mac, bssid),
3620 print_mac(mac2, ifsta->bssid));
3610#endif /* CONFIG_MAC80211_IBSS_DEBUG */ 3621#endif /* CONFIG_MAC80211_IBSS_DEBUG */
3611 if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 && 3622 if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
3612 (bss = ieee80211_rx_bss_get(dev, bssid, 3623 (bss = ieee80211_rx_bss_get(dev, bssid,
3613 local->hw.conf.channel->center_freq, 3624 local->hw.conf.channel->center_freq,
3614 ifsta->ssid, ifsta->ssid_len))) { 3625 ifsta->ssid, ifsta->ssid_len))) {
3626 int ret;
3615 printk(KERN_DEBUG "%s: Selected IBSS BSSID %s" 3627 printk(KERN_DEBUG "%s: Selected IBSS BSSID %s"
3616 " based on configured SSID\n", 3628 " based on configured SSID\n",
3617 dev->name, print_mac(mac, bssid)); 3629 dev->name, print_mac(mac, bssid));
3618 return ieee80211_sta_join_ibss(dev, ifsta, bss); 3630 ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
3631 ieee80211_rx_bss_put(dev, bss);
3632 return ret;
3619 } 3633 }
3620#ifdef CONFIG_MAC80211_IBSS_DEBUG 3634#ifdef CONFIG_MAC80211_IBSS_DEBUG
3621 printk(KERN_DEBUG " did not try to join ibss\n"); 3635 printk(KERN_DEBUG " did not try to join ibss\n");
@@ -4092,18 +4106,17 @@ ieee80211_sta_scan_result(struct net_device *dev,
4092 4106
4093 memset(&iwe, 0, sizeof(iwe)); 4107 memset(&iwe, 0, sizeof(iwe));
4094 iwe.cmd = SIOCGIWFREQ; 4108 iwe.cmd = SIOCGIWFREQ;
4095 iwe.u.freq.m = bss->freq; 4109 iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
4096 iwe.u.freq.e = 6; 4110 iwe.u.freq.e = 0;
4097 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, 4111 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
4098 IW_EV_FREQ_LEN); 4112 IW_EV_FREQ_LEN);
4099 4113
4100 memset(&iwe, 0, sizeof(iwe)); 4114 memset(&iwe, 0, sizeof(iwe));
4101 iwe.cmd = SIOCGIWFREQ; 4115 iwe.cmd = SIOCGIWFREQ;
4102 iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq); 4116 iwe.u.freq.m = bss->freq;
4103 iwe.u.freq.e = 0; 4117 iwe.u.freq.e = 6;
4104 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, 4118 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
4105 IW_EV_FREQ_LEN); 4119 IW_EV_FREQ_LEN);
4106
4107 memset(&iwe, 0, sizeof(iwe)); 4120 memset(&iwe, 0, sizeof(iwe));
4108 iwe.cmd = IWEVQUAL; 4121 iwe.cmd = IWEVQUAL;
4109 iwe.u.qual.qual = bss->signal; 4122 iwe.u.qual.qual = bss->signal;