X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fmac80211%2Fieee80211_sta.c;h=1f47afeb925da8da3d86b6de27f6c51514691d4b;hb=c715350828b12ce3b29e655fec7a7d6b22245d00;hp=2079e988fc56f256a7f655b2e541d7538ecb2169;hpb=bce943278dc4aa03b0ef9c7cf8b1b7110eda8b91;p=linux-2.6 diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 2079e988fc..1f47afeb92 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -90,7 +90,8 @@ struct ieee802_11_elems { u8 *ext_supp_rates; u8 *wmm_info; u8 *wmm_param; - + u8 *ht_cap_elem; + u8 *ht_info_elem; /* length of them, respectively */ u8 ssid_len; u8 supp_rates_len; @@ -106,6 +107,8 @@ struct ieee802_11_elems { u8 ext_supp_rates_len; u8 wmm_info_len; u8 wmm_param_len; + u8 ht_cap_elem_len; + u8 ht_info_elem_len; }; static void ieee802_11_parse_elems(u8 *start, size_t len, @@ -190,6 +193,14 @@ static void ieee802_11_parse_elems(u8 *start, size_t len, elems->ext_supp_rates = pos; elems->ext_supp_rates_len = elen; break; + case WLAN_EID_HT_CAPABILITY: + elems->ht_cap_elem = pos; + elems->ht_cap_elem_len = elen; + break; + case WLAN_EID_HT_EXTRA_INFO: + elems->ht_info_elem = pos; + elems->ht_info_elem_len = elen; + break; default: break; } @@ -332,6 +343,51 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) ieee80211_erp_info_change_notify(dev, changes); } +int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_ht_info *ht_info) +{ + + if (ht_info == NULL) + return -EINVAL; + + memset(ht_info, 0, sizeof(*ht_info)); + + if (ht_cap_ie) { + u8 ampdu_info = ht_cap_ie->ampdu_params_info; + + ht_info->ht_supported = 1; + ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); + ht_info->ampdu_factor = + ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; + ht_info->ampdu_density = + (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; + memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); + } else + ht_info->ht_supported = 0; + + return 0; +} + +int ieee80211_ht_addt_info_ie_to_ht_bss_info( + struct ieee80211_ht_addt_info *ht_add_info_ie, + struct ieee80211_ht_bss_info *bss_info) +{ + if (bss_info == NULL) + return -EINVAL; + + memset(bss_info, 0, sizeof(*bss_info)); + + if (ht_add_info_ie) { + u16 op_mode; + op_mode = le16_to_cpu(ht_add_info_ie->operation_mode); + + bss_info->primary_channel = ht_add_info_ie->control_chan; + bss_info->bss_cap = ht_add_info_ie->ht_param; + bss_info->bss_op_mode = (u8)(op_mode & 0xff); + } + + return 0; +} static void ieee80211_sta_send_associnfo(struct net_device *dev, struct ieee80211_if_sta *ifsta) @@ -630,6 +686,19 @@ static void ieee80211_send_assoc(struct net_device *dev, *pos++ = 1; /* WME ver */ *pos++ = 0; } + /* wmm support is a must to HT */ + if (wmm && mode->ht_info.ht_supported) { + __le16 tmp = cpu_to_le16(mode->ht_info.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); + *pos++ = (mode->ht_info.ampdu_factor | + (mode->ht_info.ampdu_density << 2)); + memcpy(pos, mode->ht_info.supp_mcs_set, 16); + } kfree(ifsta->assocreq_ies); ifsta->assocreq_ies_len = (skb->data + skb->len) - ies; @@ -808,12 +877,8 @@ static void ieee80211_associated(struct net_device *dev, sta_info_put(sta); } if (disassoc) { - union iwreq_data wrqu; - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); - mod_timer(&ifsta->timer, jiffies + - IEEE80211_MONITORING_INTERVAL + 30 * HZ); + ifsta->state = IEEE80211_DISABLED; + ieee80211_set_associated(dev, ifsta, 0); } else { mod_timer(&ifsta->timer, jiffies + IEEE80211_MONITORING_INTERVAL); @@ -1384,6 +1449,7 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss) kfree(bss->wpa_ie); kfree(bss->rsn_ie); kfree(bss->wmm_ie); + kfree(bss->ht_ie); kfree(bss); } @@ -1487,8 +1553,18 @@ static void ieee80211_rx_bss_info(struct net_device *dev, u32 supp_rates, prev_rates; int i, j; - mode = local->sta_scanning ? + mode = local->sta_sw_scanning ? local->scan_hw_mode : local->oper_hw_mode; + + if (local->sta_hw_scanning) { + /* search for the correct mode matches the beacon */ + list_for_each_entry(mode, &local->modes_list, list) + if (mode->mode == rx_status->phymode) + break; + + if (mode == NULL) + mode = local->oper_hw_mode; + } rates = mode->rates; num_rates = mode->num_rates; @@ -1631,7 +1707,22 @@ static void ieee80211_rx_bss_info(struct net_device *dev, bss->wmm_ie = NULL; bss->wmm_ie_len = 0; } - + if (elems.ht_cap_elem && + (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len || + memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) { + kfree(bss->ht_ie); + bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC); + if (bss->ht_ie) { + memcpy(bss->ht_ie, elems.ht_cap_elem - 2, + elems.ht_cap_elem_len + 2); + bss->ht_ie_len = elems.ht_cap_elem_len + 2; + } else + bss->ht_ie_len = 0; + } else if (!elems.ht_cap_elem && bss->ht_ie) { + kfree(bss->ht_ie); + bss->ht_ie = NULL; + bss->ht_ie_len = 0; + } bss->hw_mode = rx_status->phymode; bss->freq = rx_status->freq; @@ -1871,31 +1962,39 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, } -void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) +ieee80211_txrx_result +ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, + struct ieee80211_rx_status *rx_status) { struct ieee80211_mgmt *mgmt; u16 fc; - if (skb->len < 24) { - dev_kfree_skb(skb); - return; - } + if (skb->len < 2) + return TXRX_DROP; mgmt = (struct ieee80211_mgmt *) skb->data; fc = le16_to_cpu(mgmt->frame_control); + if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) + return TXRX_CONTINUE; + + if (skb->len < 24) + return TXRX_DROP; + if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) { ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status); + dev_kfree_skb(skb); + return TXRX_QUEUED; } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) { ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status); + dev_kfree_skb(skb); + return TXRX_QUEUED; } } - - dev_kfree_skb(skb); + return TXRX_CONTINUE; } @@ -1985,7 +2084,7 @@ void ieee80211_sta_work(struct work_struct *work) if (!netif_running(dev)) return; - if (local->sta_scanning) + if (local->sta_sw_scanning || local->sta_hw_scanning) return; if (sdata->type != IEEE80211_IF_TYPE_STA && @@ -2002,7 +2101,10 @@ void ieee80211_sta_work(struct work_struct *work) if (ifsta->state != IEEE80211_AUTHENTICATE && ifsta->state != IEEE80211_ASSOCIATE && test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) { - ieee80211_sta_start_scan(dev, NULL, 0); + if (ifsta->scan_ssid_len) + ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len); + else + ieee80211_sta_start_scan(dev, NULL, 0); return; } @@ -2640,11 +2742,17 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) union iwreq_data wrqu; local->last_scan_completed = jiffies; - wmb(); - local->sta_scanning = 0; + memset(&wrqu, 0, sizeof(wrqu)); + wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); + + if (local->sta_hw_scanning) { + local->sta_hw_scanning = 0; + goto done; + } + local->sta_sw_scanning = 0; if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational" + printk(KERN_DEBUG "%s: failed to restore operational " "channel after scan\n", dev->name); @@ -2658,9 +2766,6 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) netif_tx_unlock_bh(local->mdev); - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { @@ -2678,6 +2783,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) } rcu_read_unlock(); +done: sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->type == IEEE80211_IF_TYPE_IBSS) { struct ieee80211_if_sta *ifsta = &sdata->u.sta; @@ -2700,7 +2806,7 @@ void ieee80211_sta_scan_work(struct work_struct *work) int skip; unsigned long next_delay = 0; - if (!local->sta_scanning) + if (!local->sta_sw_scanning) return; switch (local->scan_state) { @@ -2763,7 +2869,7 @@ void ieee80211_sta_scan_work(struct work_struct *work) break; } - if (local->sta_scanning) + if (local->sta_sw_scanning) queue_delayed_work(local->hw.workqueue, &local->scan_work, next_delay); } @@ -2795,7 +2901,7 @@ static int ieee80211_sta_start_scan(struct net_device *dev, * ResultCode: SUCCESS, INVALID_PARAMETERS */ - if (local->sta_scanning) { + if (local->sta_sw_scanning || local->sta_hw_scanning) { if (local->scan_dev == dev) return 0; return -EBUSY; @@ -2803,15 +2909,15 @@ static int ieee80211_sta_start_scan(struct net_device *dev, if (local->ops->hw_scan) { int rc = local->ops->hw_scan(local_to_hw(local), - ssid, ssid_len); + ssid, ssid_len); if (!rc) { - local->sta_scanning = 1; + local->sta_hw_scanning = 1; local->scan_dev = dev; } return rc; } - local->sta_scanning = 1; + local->sta_sw_scanning = 1; rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { @@ -2866,12 +2972,15 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len) if (sdata->type != IEEE80211_IF_TYPE_STA) return ieee80211_sta_start_scan(dev, ssid, ssid_len); - if (local->sta_scanning) { + if (local->sta_sw_scanning || local->sta_hw_scanning) { if (local->scan_dev == dev) return 0; return -EBUSY; } + ifsta->scan_ssid_len = ssid_len; + if (ssid_len) + memcpy(ifsta->scan_ssid, ssid, ssid_len); set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request); queue_work(local->hw.workqueue, &ifsta->work); return 0; @@ -2892,15 +3001,6 @@ ieee80211_sta_scan_result(struct net_device *dev, if (!(local->enabled_modes & (1 << bss->hw_mode))) return current_ev; - if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY && - !bss->wpa_ie && !bss->rsn_ie) - return current_ev; - - if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID && - (local->scan_ssid_len != bss->ssid_len || - memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0)) - return current_ev; - memset(&iwe, 0, sizeof(iwe)); iwe.cmd = SIOCGIWAP; iwe.u.ap_addr.sa_family = ARPHRD_ETHER; @@ -3007,9 +3107,6 @@ ieee80211_sta_scan_result(struct net_device *dev, do { char *buf; - if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO)) - break; - buf = kmalloc(100, GFP_ATOMIC); if (!buf) break;