diff options
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 3944 |
1 files changed, 1041 insertions, 2903 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index d7c371e36bf0..49f86fa56bff 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -11,11 +11,6 @@ * published by the Free Software Foundation. */ -/* TODO: - * order BSS list by RSSI(?) ("quality of AP") - * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE, - * SSID) - */ #include <linux/delay.h> #include <linux/if_ether.h> #include <linux/skbuff.h> @@ -26,610 +21,184 @@ #include <linux/etherdevice.h> #include <linux/rtnetlink.h> #include <net/iw_handler.h> -#include <asm/types.h> - #include <net/mac80211.h> +#include <asm/unaligned.h> + #include "ieee80211_i.h" #include "rate.h" #include "led.h" -#include "mesh.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_MESH_HOUSEKEEPING_INTERVAL (60 * HZ) #define IEEE80211_PROBE_INTERVAL (60 * HZ) #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ) #define IEEE80211_SCAN_INTERVAL (2 * HZ) #define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) #define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ) -#define IEEE80211_PROBE_DELAY (HZ / 33) -#define IEEE80211_CHANNEL_TIME (HZ / 33) -#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5) -#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ) #define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ) -#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ) #define IEEE80211_IBSS_MAX_STA_ENTRIES 128 -#define ERP_INFO_USE_PROTECTION BIT(1) - -/* mgmt header + 1 byte action code */ -#define IEEE80211_MIN_ACTION_SIZE (24 + 1) - -#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 -#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C -#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 -#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 -#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 - -/* next values represent the buffer size for A-MPDU frame. - * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */ -#define IEEE80211_MIN_AMPDU_BUF 0x8 -#define IEEE80211_MAX_AMPDU_BUF 0x40 - -static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst, - u8 *ssid, size_t ssid_len); -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len); -static void ieee80211_rx_bss_put(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss); -static int ieee80211_sta_find_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta); -static int ieee80211_sta_wep_configured(struct net_device *dev); -static int ieee80211_sta_start_scan(struct net_device *dev, - u8 *ssid, size_t ssid_len); -static int ieee80211_sta_config_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta); -static void sta_rx_agg_session_timer_expired(unsigned long data); - - -void ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems) -{ - size_t left = len; - u8 *pos = start; - - memset(elems, 0, sizeof(*elems)); - - while (left >= 2) { - u8 id, elen; - - id = *pos++; - elen = *pos++; - left -= 2; - - if (elen > left) - return; - - switch (id) { - case WLAN_EID_SSID: - elems->ssid = pos; - elems->ssid_len = elen; - break; - case WLAN_EID_SUPP_RATES: - elems->supp_rates = pos; - elems->supp_rates_len = elen; - break; - case WLAN_EID_FH_PARAMS: - elems->fh_params = pos; - elems->fh_params_len = elen; - break; - case WLAN_EID_DS_PARAMS: - elems->ds_params = pos; - elems->ds_params_len = elen; - break; - case WLAN_EID_CF_PARAMS: - elems->cf_params = pos; - elems->cf_params_len = elen; - break; - case WLAN_EID_TIM: - elems->tim = pos; - elems->tim_len = elen; - break; - case WLAN_EID_IBSS_PARAMS: - elems->ibss_params = pos; - elems->ibss_params_len = elen; - break; - case WLAN_EID_CHALLENGE: - elems->challenge = pos; - elems->challenge_len = elen; - break; - case WLAN_EID_WPA: - if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && - pos[2] == 0xf2) { - /* Microsoft OUI (00:50:F2) */ - if (pos[3] == 1) { - /* OUI Type 1 - WPA IE */ - elems->wpa = pos; - elems->wpa_len = elen; - } else if (elen >= 5 && pos[3] == 2) { - if (pos[4] == 0) { - elems->wmm_info = pos; - elems->wmm_info_len = elen; - } else if (pos[4] == 1) { - elems->wmm_param = pos; - elems->wmm_param_len = elen; - } - } - } - break; - case WLAN_EID_RSN: - elems->rsn = pos; - elems->rsn_len = elen; - break; - case WLAN_EID_ERP_INFO: - elems->erp_info = pos; - elems->erp_info_len = elen; - break; - case WLAN_EID_EXT_SUPP_RATES: - 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; - case WLAN_EID_MESH_ID: - elems->mesh_id = pos; - elems->mesh_id_len = elen; - break; - case WLAN_EID_MESH_CONFIG: - elems->mesh_config = pos; - elems->mesh_config_len = elen; - break; - case WLAN_EID_PEER_LINK: - elems->peer_link = pos; - elems->peer_link_len = elen; - break; - case WLAN_EID_PREQ: - elems->preq = pos; - elems->preq_len = elen; - break; - case WLAN_EID_PREP: - elems->prep = pos; - elems->prep_len = elen; - break; - case WLAN_EID_PERR: - elems->perr = pos; - elems->perr_len = elen; - break; - case WLAN_EID_CHANNEL_SWITCH: - elems->ch_switch_elem = pos; - elems->ch_switch_elem_len = elen; - break; - case WLAN_EID_QUIET: - if (!elems->quiet_elem) { - elems->quiet_elem = pos; - elems->quiet_elem_len = elen; - } - elems->num_of_quiet_elem++; - break; - case WLAN_EID_COUNTRY: - elems->country_elem = pos; - elems->country_elem_len = elen; - break; - case WLAN_EID_PWR_CONSTRAINT: - elems->pwr_constr_elem = pos; - elems->pwr_constr_elem_len = elen; - break; - default: - break; - } - - left -= elen; - pos += elen; - } -} - - +/* utils */ static int ecw2cw(int ecw) { return (1 << ecw) - 1; } - -static void ieee80211_sta_def_wmm_params(struct net_device *dev, - struct ieee80211_sta_bss *bss, - int ibss) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - 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) - have_higher_than_11mbit = 1; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && - have_higher_than_11mbit) - sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; - else - sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - - - if (local->ops->conf_tx) { - struct ieee80211_tx_queue_params qparam; - - memset(&qparam, 0, sizeof(qparam)); - - qparam.aifs = 2; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && - !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)) - qparam.cw_min = 31; - else - qparam.cw_min = 15; - - qparam.cw_max = 1023; - qparam.txop = 0; - - for (i = 0; i < local_to_hw(local)->queues; i++) - local->ops->conf_tx(local_to_hw(local), i, &qparam); - } -} - -static void ieee80211_sta_wmm_params(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - u8 *wmm_param, size_t wmm_param_len) +static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_tx_queue_params params; - size_t left; - int count; - u8 *pos; - - if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED)) - return; + u8 *end, *pos; - if (!wmm_param) - return; - - if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) - return; - count = wmm_param[6] & 0x0f; - if (count == ifsta->wmm_last_param_set) - return; - ifsta->wmm_last_param_set = count; - - pos = wmm_param + 8; - left = wmm_param_len - 8; - - memset(¶ms, 0, sizeof(params)); - - if (!local->ops->conf_tx) - return; - - local->wmm_acm = 0; - for (; left >= 4; left -= 4, pos += 4) { - int aci = (pos[0] >> 5) & 0x03; - int acm = (pos[0] >> 4) & 0x01; - int queue; + pos = bss->ies; + if (pos == NULL) + return NULL; + end = pos + bss->ies_len; - switch (aci) { - case 1: - queue = 3; - if (acm) - local->wmm_acm |= BIT(0) | BIT(3); - break; - case 2: - queue = 1; - if (acm) - local->wmm_acm |= BIT(4) | BIT(5); + while (pos + 1 < end) { + if (pos + 2 + pos[1] > end) break; - case 3: - queue = 0; - if (acm) - local->wmm_acm |= BIT(6) | BIT(7); - break; - case 0: - default: - queue = 2; - if (acm) - local->wmm_acm |= BIT(1) | BIT(2); - break; - } - - params.aifs = pos[0] & 0x0f; - params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4); - params.cw_min = ecw2cw(pos[1] & 0x0f); - params.txop = get_unaligned_le16(pos + 2); -#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", - dev->name, queue, aci, acm, params.aifs, params.cw_min, - params.cw_max, params.txop); -#endif - /* TODO: handle ACM (block TX, fallback to next lowest allowed - * AC for now) */ - if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) { - printk(KERN_DEBUG "%s: failed to set TX queue " - "parameters for queue %d\n", dev->name, queue); - } - } -} - -static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata, - bool use_protection, - bool use_short_preamble) -{ - struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf; -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - DECLARE_MAC_BUF(mac); -#endif - u32 changed = 0; - - if (use_protection != bss_conf->use_cts_prot) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" - "%s)\n", - sdata->dev->name, - use_protection ? "enabled" : "disabled", - print_mac(mac, ifsta->bssid)); - } -#endif - bss_conf->use_cts_prot = use_protection; - changed |= BSS_CHANGED_ERP_CTS_PROT; + if (pos[0] == ie) + return pos; + pos += 2 + pos[1]; } - 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=%s)\n", - sdata->dev->name, - use_short_preamble ? "short" : "long", - print_mac(mac, ifsta->bssid)); - } -#endif - bss_conf->use_short_preamble = use_short_preamble; - changed |= BSS_CHANGED_ERP_PREAMBLE; - } - - return changed; + return NULL; } -static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata, - u8 erp_value) -{ - bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; - bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0; - - return ieee80211_handle_protect_preamb(sdata, - use_protection, use_short_preamble); -} - -static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, - struct ieee80211_sta_bss *bss) +static int ieee80211_compatible_rates(struct ieee80211_bss *bss, + struct ieee80211_supported_band *sband, + u64 *rates) { - u32 changed = 0; + 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 (bss->has_erp_value) - changed |= ieee80211_handle_erp_ie(sdata, bss->erp_value); - else { - u16 capab = bss->capability; - changed |= ieee80211_handle_protect_preamb(sdata, false, - (capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0); + for (j = 0; j < sband->n_bitrates; j++) + if (sband->bitrates[j].bitrate == rate) { + *rates |= BIT(j); + count++; + break; + } } - return changed; -} - -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; + return count; } -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) +/* also used by mesh code */ +u64 ieee80211_sta_get_rates(struct ieee80211_local *local, + struct ieee802_11_elems *elems, + enum ieee80211_band band) { - 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); + struct ieee80211_supported_band *sband; + struct ieee80211_rate *bitrates; + size_t num_rates; + u64 supp_rates; + int i, j; + sband = local->hw.wiphy->bands[band]; - 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); + if (!sband) { + WARN_ON(1); + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; } - return 0; + bitrates = sband->bitrates; + num_rates = sband->n_bitrates; + supp_rates = 0; + for (i = 0; i < elems->supp_rates_len + + elems->ext_supp_rates_len; i++) { + u8 rate = 0; + int own_rate; + if (i < elems->supp_rates_len) + rate = elems->supp_rates[i]; + else if (elems->ext_supp_rates) + rate = elems->ext_supp_rates + [i - elems->supp_rates_len]; + own_rate = 5 * (rate & 0x7f); + for (j = 0; j < num_rates; j++) + if (bitrates[j].bitrate == own_rate) + supp_rates |= BIT(j); + } + return supp_rates; } -static void ieee80211_sta_send_associnfo(struct net_device *dev, - struct ieee80211_if_sta *ifsta) +/* frame sending functions */ + +/* also used by scanning code */ +void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, + u8 *ssid, size_t ssid_len) { - char *buf; - size_t len; + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u8 *pos, *supp_rates, *esupp_rates = NULL; int i; - union iwreq_data wrqu; - - if (!ifsta->assocreq_ies && !ifsta->assocresp_ies) - return; - buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len + - ifsta->assocresp_ies_len), GFP_KERNEL); - if (!buf) + skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for probe " + "request\n", sdata->dev->name); return; - - len = sprintf(buf, "ASSOCINFO("); - if (ifsta->assocreq_ies) { - len += sprintf(buf + len, "ReqIEs="); - for (i = 0; i < ifsta->assocreq_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocreq_ies[i]); - } } - if (ifsta->assocresp_ies) { - if (ifsta->assocreq_ies) - len += sprintf(buf + len, " "); - len += sprintf(buf + len, "RespIEs="); - for (i = 0; i < ifsta->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocresp_ies[i]); - } - } - len += sprintf(buf + len, ")"); + skb_reserve(skb, local->hw.extra_tx_headroom); - if (len > IW_CUSTOM_MAX) { - len = sprintf(buf, "ASSOCRESPIE="); - for (i = 0; i < ifsta->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocresp_ies[i]); - } + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_PROBE_REQ); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + if (dst) { + memcpy(mgmt->da, dst, ETH_ALEN); + memcpy(mgmt->bssid, dst, ETH_ALEN); + } else { + memset(mgmt->da, 0xff, ETH_ALEN); + memset(mgmt->bssid, 0xff, ETH_ALEN); } + pos = skb_put(skb, 2 + ssid_len); + *pos++ = WLAN_EID_SSID; + *pos++ = ssid_len; + memcpy(pos, ssid, ssid_len); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = len; - wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); - - kfree(buf); -} - - -static void ieee80211_set_associated(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - bool assoc) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; - struct ieee80211_conf *conf = &local_to_hw(local)->conf; - union iwreq_data wrqu; - u32 changed = BSS_CHANGED_ASSOC; - - if (assoc) { - struct ieee80211_sta_bss *bss; - - ifsta->flags |= IEEE80211_STA_ASSOCIATED; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - conf->channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - /* set timing information */ - sdata->bss_conf.beacon_int = bss->beacon_int; - sdata->bss_conf.timestamp = bss->timestamp; - - changed |= ieee80211_handle_bss_capability(sdata, bss); - - ieee80211_rx_bss_put(local, bss); - } + supp_rates = skb_put(skb, 2); + supp_rates[0] = WLAN_EID_SUPP_RATES; + supp_rates[1] = 0; + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { - changed |= BSS_CHANGED_HT; - sdata->bss_conf.assoc_ht = 1; - sdata->bss_conf.ht_conf = &conf->ht_conf; - sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; + for (i = 0; i < sband->n_bitrates; i++) { + struct ieee80211_rate *rate = &sband->bitrates[i]; + if (esupp_rates) { + pos = skb_put(skb, 1); + esupp_rates[1]++; + } else if (supp_rates[1] == 8) { + esupp_rates = skb_put(skb, 3); + esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES; + esupp_rates[1] = 1; + pos = &esupp_rates[2]; + } else { + pos = skb_put(skb, 1); + supp_rates[1]++; } - - ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); - memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); - ieee80211_sta_send_associnfo(dev, ifsta); - } else { - netif_carrier_off(dev); - ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid); - ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - changed |= ieee80211_reset_erp_info(dev); - - sdata->bss_conf.assoc_ht = 0; - sdata->bss_conf.ht_conf = NULL; - sdata->bss_conf.ht_bss_conf = NULL; - - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); + *pos = rate->bitrate / 5; } - ifsta->last_probe = jiffies; - ieee80211_led_assoc(local, assoc); - - sdata->bss_conf.assoc = assoc; - ieee80211_bss_info_change_notify(sdata, changed); - - if (assoc) - netif_carrier_on(dev); - - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); -} - -static void ieee80211_set_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, int deauth) -{ - if (deauth) - ifsta->auth_tries = 0; - ifsta->assoc_tries = 0; - ieee80211_set_associated(dev, ifsta, 0); -} - -void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb, - int encrypt) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_tx_info *info; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - skb->dev = sdata->local->mdev; - skb_set_mac_header(skb, 0); - skb_set_network_header(skb, 0); - skb_set_transport_header(skb, 0); - info = IEEE80211_SKB_CB(skb); - memset(info, 0, sizeof(struct ieee80211_tx_info)); - info->control.ifindex = sdata->dev->ifindex; - if (!encrypt) - info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT; - - dev_queue_xmit(skb); + ieee80211_tx_skb(sdata, skb, 0); } - -static void ieee80211_send_auth(struct net_device *dev, +static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, int transaction, u8 *extra, size_t extra_len, int encrypt) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; @@ -637,19 +206,19 @@ static void ieee80211_send_auth(struct net_device *dev, sizeof(*mgmt) + 6 + extra_len); if (!skb) { printk(KERN_DEBUG "%s: failed to allocate buffer for auth " - "frame\n", dev->name); + "frame\n", sdata->dev->name); return; } skb_reserve(skb, local->hw.extra_tx_headroom); mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); memset(mgmt, 0, 24 + 6); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_AUTH); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_AUTH); if (encrypt) mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); @@ -658,64 +227,19 @@ static void ieee80211_send_auth(struct net_device *dev, if (extra) memcpy(skb_put(skb, extra_len), extra, extra_len); - ieee80211_sta_tx(dev, skb, encrypt); + ieee80211_tx_skb(sdata, skb, encrypt); } - -static void ieee80211_authenticate(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - DECLARE_MAC_BUF(mac); - - ifsta->auth_tries++; - if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) { - printk(KERN_DEBUG "%s: authentication with AP %s" - " timed out\n", - dev->name, print_mac(mac, ifsta->bssid)); - ifsta->state = IEEE80211_DISABLED; - return; - } - - ifsta->state = IEEE80211_AUTHENTICATE; - printk(KERN_DEBUG "%s: authenticate with AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - - ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0); - - mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT); -} - -static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss, - struct ieee80211_supported_band *sband, - u64 *rates) -{ - 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; - - for (j = 0; j < sband->n_bitrates; j++) - if (sband->bitrates[j].bitrate == rate) { - *rates |= BIT(j); - count++; - break; - } - } - - return count; -} - -static void ieee80211_send_assoc(struct net_device *dev, +static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - u8 *pos, *ies; + u8 *pos, *ies, *ht_add_ie; int i, len, count, rates_len, supp_rates_len; u16 capab; - struct ieee80211_sta_bss *bss; + struct ieee80211_bss *bss; int wmm = 0; struct ieee80211_supported_band *sband; u64 rates = 0; @@ -725,7 +249,7 @@ static void ieee80211_send_assoc(struct net_device *dev, ifsta->ssid_len); if (!skb) { printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " - "frame\n", dev->name); + "frame\n", sdata->dev->name); return; } skb_reserve(skb, local->hw.extra_tx_headroom); @@ -741,13 +265,13 @@ static void ieee80211_send_assoc(struct net_device *dev, capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; } - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, + bss = ieee80211_rx_bss_get(local, ifsta->bssid, local->hw.conf.channel->center_freq, ifsta->ssid, ifsta->ssid_len); if (bss) { if (bss->capability & WLAN_CAPABILITY_PRIVACY) capab |= WLAN_CAPABILITY_PRIVACY; - if (bss->wmm_ie) + if (bss->wmm_used) wmm = 1; /* get all rates supported by the device and the AP as @@ -769,23 +293,25 @@ static void ieee80211_send_assoc(struct net_device *dev, mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); memset(mgmt, 0, 24); memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) { skb_put(skb, 10); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_REASSOC_REQ); + 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(1); + mgmt->u.reassoc_req.listen_interval = + cpu_to_le16(local->hw.conf.listen_interval); memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid, ETH_ALEN); } else { skb_put(skb, 4); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ASSOC_REQ); + 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(1); + mgmt->u.reassoc_req.listen_interval = + cpu_to_le16(local->hw.conf.listen_interval); } /* SSID */ @@ -814,7 +340,7 @@ static void ieee80211_send_assoc(struct net_device *dev, } } - if (count == 8) { + if (rates_len > count) { pos = skb_put(skb, rates_len - count + 2); *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos++ = rates_len - count; @@ -867,9 +393,10 @@ static void ieee80211_send_assoc(struct net_device *dev, /* wmm support is a must to HT */ if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) && - sband->ht_info.ht_supported && bss->ht_add_ie) { + sband->ht_info.ht_supported && + (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) { struct ieee80211_ht_addt_info *ht_add_info = - (struct ieee80211_ht_addt_info *)bss->ht_add_ie; + (struct ieee80211_ht_addt_info *)ht_add_ie; u16 cap = sband->ht_info.cap; __le16 tmp; u32 flags = local->hw.conf.channel->flags; @@ -908,21 +435,22 @@ static void ieee80211_send_assoc(struct net_device *dev, if (ifsta->assocreq_ies) memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len); - ieee80211_sta_tx(dev, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); } -static void ieee80211_send_deauth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, u16 reason) +static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, + u16 stype, u16 reason) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta = &sdata->u.sta; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for deauth " - "frame\n", dev->name); + printk(KERN_DEBUG "%s: failed to allocate buffer for " + "deauth/disassoc frame\n", sdata->dev->name); return; } skb_reserve(skb, local->hw.extra_tx_headroom); @@ -930,940 +458,594 @@ static void ieee80211_send_deauth(struct net_device *dev, mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); memset(mgmt, 0, 24); memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_DEAUTH); + 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); - ieee80211_sta_tx(dev, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); } - -static void ieee80211_send_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, u16 reason) +/* MLME */ +static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss *bss) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; + struct ieee80211_local *local = sdata->local; + int i, have_higher_than_11mbit = 0; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc " - "frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); + /* cf. IEEE 802.11 9.2.12 */ + for (i = 0; i < bss->supp_rates_len; i++) + if ((bss->supp_rates[i] & 0x7f) * 5 > 110) + have_higher_than_11mbit = 1; - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_DISASSOC); - skb_put(skb, 2); - mgmt->u.disassoc.reason_code = cpu_to_le16(reason); + if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && + have_higher_than_11mbit) + sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; + else + sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - ieee80211_sta_tx(dev, skb, 0); + ieee80211_set_wmm_default(sdata); } - -static int ieee80211_privacy_mismatch(struct net_device *dev, - struct ieee80211_if_sta *ifsta) +static void ieee80211_sta_wmm_params(struct ieee80211_local *local, + struct ieee80211_if_sta *ifsta, + u8 *wmm_param, size_t wmm_param_len) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - int bss_privacy; - int wep_privacy; - int privacy_invoked; + struct ieee80211_tx_queue_params params; + size_t left; + int count; + u8 *pos; - if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL)) - return 0; + if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED)) + return; - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (!bss) - return 0; + if (!wmm_param) + return; - bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY); - wep_privacy = !!ieee80211_sta_wep_configured(dev); - privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED); + if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) + return; + count = wmm_param[6] & 0x0f; + if (count == ifsta->wmm_last_param_set) + return; + ifsta->wmm_last_param_set = count; - ieee80211_rx_bss_put(local, bss); + pos = wmm_param + 8; + left = wmm_param_len - 8; - if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) - return 0; + memset(¶ms, 0, sizeof(params)); - return 1; -} + if (!local->ops->conf_tx) + return; + local->wmm_acm = 0; + for (; left >= 4; left -= 4, pos += 4) { + int aci = (pos[0] >> 5) & 0x03; + int acm = (pos[0] >> 4) & 0x01; + int queue; -static void ieee80211_associate(struct net_device *dev, - struct ieee80211_if_sta *ifsta) + switch (aci) { + case 1: + queue = 3; + if (acm) + local->wmm_acm |= BIT(0) | BIT(3); + break; + case 2: + queue = 1; + if (acm) + local->wmm_acm |= BIT(4) | BIT(5); + break; + case 3: + queue = 0; + if (acm) + local->wmm_acm |= BIT(6) | BIT(7); + break; + case 0: + default: + queue = 2; + if (acm) + local->wmm_acm |= BIT(1) | BIT(2); + break; + } + + params.aifs = pos[0] & 0x0f; + params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4); + params.cw_min = ecw2cw(pos[1] & 0x0f); + params.txop = get_unaligned_le16(pos + 2); +#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); +#endif + /* TODO: handle ACM (block TX, fallback to next lowest allowed + * AC for now) */ + if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) { + printk(KERN_DEBUG "%s: failed to set TX queue " + "parameters for queue %d\n", local->mdev->name, queue); + } + } +} + +static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata, + bool use_protection, + bool use_short_preamble) { + struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf; +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + struct ieee80211_if_sta *ifsta = &sdata->u.sta; DECLARE_MAC_BUF(mac); +#endif + u32 changed = 0; - ifsta->assoc_tries++; - if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { - printk(KERN_DEBUG "%s: association with AP %s" - " timed out\n", - dev->name, print_mac(mac, ifsta->bssid)); - ifsta->state = IEEE80211_DISABLED; - return; + if (use_protection != bss_conf->use_cts_prot) { +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" + "%s)\n", + sdata->dev->name, + use_protection ? "enabled" : "disabled", + print_mac(mac, ifsta->bssid)); + } +#endif + bss_conf->use_cts_prot = use_protection; + changed |= BSS_CHANGED_ERP_CTS_PROT; } - ifsta->state = IEEE80211_ASSOCIATE; - printk(KERN_DEBUG "%s: associate with AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - if (ieee80211_privacy_mismatch(dev, ifsta)) { - printk(KERN_DEBUG "%s: mismatch in privacy configuration and " - "mixed-cell disabled - abort association\n", dev->name); - ifsta->state = IEEE80211_DISABLED; - return; + 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=%s)\n", + sdata->dev->name, + use_short_preamble ? "short" : "long", + print_mac(mac, ifsta->bssid)); + } +#endif + bss_conf->use_short_preamble = use_short_preamble; + changed |= BSS_CHANGED_ERP_PREAMBLE; } - ieee80211_send_assoc(dev, ifsta); - - mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); + return changed; } - -static void ieee80211_associated(struct net_device *dev, - struct ieee80211_if_sta *ifsta) +static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata, + u8 erp_value) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - int disassoc; - DECLARE_MAC_BUF(mac); - - /* 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 */ + bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; + bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0; - ifsta->state = IEEE80211_ASSOCIATED; + return ieee80211_handle_protect_preamb(sdata, + use_protection, use_short_preamble); +} - rcu_read_lock(); +static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss *bss) +{ + u32 changed = 0; - sta = sta_info_get(local, ifsta->bssid); - if (!sta) { - printk(KERN_DEBUG "%s: No STA entry for own AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - disassoc = 1; - } else { - disassoc = 0; - if (time_after(jiffies, - sta->last_rx + IEEE80211_MONITORING_INTERVAL)) { - if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) { - printk(KERN_DEBUG "%s: No ProbeResp from " - "current AP %s - assume out of " - "range\n", - dev->name, print_mac(mac, ifsta->bssid)); - disassoc = 1; - sta_info_unlink(&sta); - } else - ieee80211_send_probe_req(dev, ifsta->bssid, - local->scan_ssid, - local->scan_ssid_len); - ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL; - } else { - ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL; - if (time_after(jiffies, ifsta->last_probe + - IEEE80211_PROBE_INTERVAL)) { - ifsta->last_probe = jiffies; - ieee80211_send_probe_req(dev, ifsta->bssid, - ifsta->ssid, - ifsta->ssid_len); - } - } + if (bss->has_erp_value) + changed |= ieee80211_handle_erp_ie(sdata, bss->erp_value); + else { + u16 capab = bss->capability; + changed |= ieee80211_handle_protect_preamb(sdata, false, + (capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0); } - rcu_read_unlock(); - - if (disassoc && sta) - sta_info_destroy(sta); - - if (disassoc) { - ifsta->state = IEEE80211_DISABLED; - ieee80211_set_associated(dev, ifsta, 0); - } else { - mod_timer(&ifsta->timer, jiffies + - IEEE80211_MONITORING_INTERVAL); - } + return changed; } +static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof(wrqu)); + if (ifsta->flags & IEEE80211_STA_ASSOCIATED) + memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL); +} -static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst, - u8 *ssid, size_t ssid_len) +static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_supported_band *sband; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *supp_rates, *esupp_rates = NULL; + char *buf; + size_t len; int i; + union iwreq_data wrqu; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for probe " - "request\n", dev->name); + if (!ifsta->assocreq_ies && !ifsta->assocresp_ies) return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_PROBE_REQ); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (dst) { - memcpy(mgmt->da, dst, ETH_ALEN); - memcpy(mgmt->bssid, dst, ETH_ALEN); - } else { - memset(mgmt->da, 0xff, ETH_ALEN); - memset(mgmt->bssid, 0xff, ETH_ALEN); - } - pos = skb_put(skb, 2 + ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ssid_len; - memcpy(pos, ssid, ssid_len); - - supp_rates = skb_put(skb, 2); - supp_rates[0] = WLAN_EID_SUPP_RATES; - supp_rates[1] = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len + + ifsta->assocresp_ies_len), GFP_KERNEL); + if (!buf) + return; - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (esupp_rates) { - pos = skb_put(skb, 1); - esupp_rates[1]++; - } else if (supp_rates[1] == 8) { - esupp_rates = skb_put(skb, 3); - esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES; - esupp_rates[1] = 1; - pos = &esupp_rates[2]; - } else { - pos = skb_put(skb, 1); - supp_rates[1]++; + len = sprintf(buf, "ASSOCINFO("); + if (ifsta->assocreq_ies) { + len += sprintf(buf + len, "ReqIEs="); + for (i = 0; i < ifsta->assocreq_ies_len; i++) { + len += sprintf(buf + len, "%02x", + ifsta->assocreq_ies[i]); } - *pos = rate->bitrate / 5; } + if (ifsta->assocresp_ies) { + if (ifsta->assocreq_ies) + len += sprintf(buf + len, " "); + len += sprintf(buf + len, "RespIEs="); + for (i = 0; i < ifsta->assocresp_ies_len; i++) { + len += sprintf(buf + len, "%02x", + ifsta->assocresp_ies[i]); + } + } + len += sprintf(buf + len, ")"); - ieee80211_sta_tx(dev, skb, 0); -} + if (len > IW_CUSTOM_MAX) { + len = sprintf(buf, "ASSOCRESPIE="); + for (i = 0; i < ifsta->assocresp_ies_len; i++) { + len += sprintf(buf + len, "%02x", + ifsta->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); + } -static int ieee80211_sta_wep_configured(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (!sdata || !sdata->default_key || - sdata->default_key->conf.alg != ALG_WEP) - return 0; - return 1; + kfree(buf); } -static void ieee80211_auth_completed(struct net_device *dev, +static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { - printk(KERN_DEBUG "%s: authenticated\n", dev->name); - ifsta->flags |= IEEE80211_STA_AUTHENTICATED; - ieee80211_associate(dev, ifsta); -} + struct ieee80211_local *local = sdata->local; + struct ieee80211_conf *conf = &local_to_hw(local)->conf; + u32 changed = BSS_CHANGED_ASSOC; + struct ieee80211_bss *bss; -static void ieee80211_auth_challenge(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - u8 *pos; - struct ieee802_11_elems elems; + ifsta->flags |= IEEE80211_STA_ASSOCIATED; - pos = mgmt->u.auth.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); - if (!elems.challenge) + if (sdata->vif.type != NL80211_IFTYPE_STATION) return; - ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2, - elems.challenge_len + 2, 1); -} -static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid, - u8 dialog_token, u16 status, u16 policy, - u16 buf_size, u16 timeout) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; + bss = ieee80211_rx_bss_get(local, ifsta->bssid, + conf->channel->center_freq, + ifsta->ssid, ifsta->ssid_len); + if (bss) { + /* set timing information */ + sdata->bss_conf.beacon_int = bss->beacon_int; + sdata->bss_conf.timestamp = bss->timestamp; + sdata->bss_conf.dtim_period = bss->dtim_period; - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + changed |= ieee80211_handle_bss_capability(sdata, bss); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer " - "for addba resp frame\n", dev->name); - return; + ieee80211_rx_bss_put(local, bss); } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); + if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { + changed |= BSS_CHANGED_HT; + sdata->bss_conf.assoc_ht = 1; + sdata->bss_conf.ht_conf = &conf->ht_conf; + sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; + } - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; - mgmt->u.action.u.addba_resp.dialog_token = dialog_token; + ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; + memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); + ieee80211_sta_send_associnfo(sdata, ifsta); - capab = (u16)(policy << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ + ifsta->last_probe = jiffies; + ieee80211_led_assoc(local, 1); - mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); - mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); + sdata->bss_conf.assoc = 1; + /* + * For now just always ask the driver to update the basic rateset + * when we have associated, we aren't checking whether it actually + * changed or not. + */ + changed |= BSS_CHANGED_BASIC_RATES; + ieee80211_bss_info_change_notify(sdata, changed); - ieee80211_sta_tx(dev, skb, 0); + netif_tx_start_all_queues(sdata->dev); + netif_carrier_on(sdata->dev); - return; + ieee80211_sta_send_apinfo(sdata, ifsta); } -void ieee80211_send_addba_request(struct net_device *dev, const u8 *da, - u16 tid, u8 dialog_token, u16 start_seq_num, - u16 agg_size, u16 timeout) +static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + DECLARE_MAC_BUF(mac); - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for addba request frame\n", dev->name); + ifsta->direct_probe_tries++; + if (ifsta->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) { + printk(KERN_DEBUG "%s: direct probe to AP %s timed out\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + ifsta->state = IEEE80211_STA_MLME_DISABLED; return; } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); + printk(KERN_DEBUG "%s: direct probe to AP %s try %d\n", + sdata->dev->name, print_mac(mac, ifsta->bssid), + ifsta->direct_probe_tries); - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req)); + ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE; - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; + set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifsta->request); - mgmt->u.action.u.addba_req.dialog_token = dialog_token; - capab = (u16)(1 << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */ - - mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); - - mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_req.start_seq_num = - cpu_to_le16(start_seq_num << 4); + /* Direct probe is sent to broadcast address as some APs + * will not answer to direct packet in unassociated state. + */ + ieee80211_send_probe_req(sdata, NULL, + ifsta->ssid, ifsta->ssid_len); - ieee80211_sta_tx(dev, skb, 0); + mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT); } -static void ieee80211_sta_process_addba_request(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len) + +static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct ieee80211_conf *conf = &hw->conf; - struct sta_info *sta; - struct tid_ampdu_rx *tid_agg_rx; - u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status; - u8 dialog_token; - int ret = -EOPNOTSUPP; DECLARE_MAC_BUF(mac); - rcu_read_lock(); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) { - rcu_read_unlock(); + ifsta->auth_tries++; + if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) { + printk(KERN_DEBUG "%s: authentication with AP %s" + " timed out\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + ifsta->state = IEEE80211_STA_MLME_DISABLED; return; } - /* extract session parameters from addba request frame */ - dialog_token = mgmt->u.action.u.addba_req.dialog_token; - timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); - start_seq_num = - le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; - - capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); - ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; - - status = WLAN_STATUS_REQUEST_DECLINED; - - /* sanity check for incoming parameters: - * check if configuration can support the BA policy - * and if buffer size does not exceeds max value */ - if (((ba_policy != 1) - && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) - || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { - status = WLAN_STATUS_INVALID_QOS_PARAM; -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "AddBA Req with bad params from " - "%s on tid %u. policy %d, buffer size %d\n", - print_mac(mac, mgmt->sa), tid, ba_policy, - buf_size); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end_no_lock; - } - /* determine default buffer size */ - if (buf_size == 0) { - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[conf->channel->band]; - buf_size = IEEE80211_MIN_AMPDU_BUF; - buf_size = buf_size << sband->ht_info.ampdu_factor; - } - - - /* examine state machine */ - spin_lock_bh(&sta->lock); - - if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "unexpected AddBA Req from " - "%s on tid %u\n", - print_mac(mac, mgmt->sa), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end; - } + ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; + printk(KERN_DEBUG "%s: authenticate with AP %s\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); - /* prepare A-MPDU MLME for Rx aggregation */ - sta->ampdu_mlme.tid_rx[tid] = - kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC); - if (!sta->ampdu_mlme.tid_rx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_ERR "allocate rx mlme to tid %d failed\n", - tid); -#endif - goto end; - } - /* rx timer */ - sta->ampdu_mlme.tid_rx[tid]->session_timer.function = - sta_rx_agg_session_timer_expired; - sta->ampdu_mlme.tid_rx[tid]->session_timer.data = - (unsigned long)&sta->timer_to_tid[tid]; - init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer); - - tid_agg_rx = sta->ampdu_mlme.tid_rx[tid]; - - /* prepare reordering buffer */ - tid_agg_rx->reorder_buf = - kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC); - if (!tid_agg_rx->reorder_buf) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_ERR "can not allocate reordering buffer " - "to tid %d\n", tid); -#endif - kfree(sta->ampdu_mlme.tid_rx[tid]); - goto end; - } - memset(tid_agg_rx->reorder_buf, 0, - buf_size * sizeof(struct sk_buff *)); - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START, - sta->addr, tid, &start_seq_num); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (ret) { - kfree(tid_agg_rx->reorder_buf); - kfree(tid_agg_rx); - sta->ampdu_mlme.tid_rx[tid] = NULL; - goto end; - } + ieee80211_send_auth(sdata, ifsta, 1, NULL, 0, 0); - /* change state and send addba resp */ - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL; - tid_agg_rx->dialog_token = dialog_token; - tid_agg_rx->ssn = start_seq_num; - tid_agg_rx->head_seq_num = start_seq_num; - tid_agg_rx->buf_size = buf_size; - tid_agg_rx->timeout = timeout; - tid_agg_rx->stored_mpdu_num = 0; - status = WLAN_STATUS_SUCCESS; -end: - spin_unlock_bh(&sta->lock); - -end_no_lock: - ieee80211_send_addba_resp(sta->sdata->dev, sta->addr, tid, - dialog_token, status, 1, buf_size, timeout); - rcu_read_unlock(); + mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT); } -static void ieee80211_sta_process_addba_resp(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len) +static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta, bool deauth, + bool self_disconnected, u16 reason) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; + struct ieee80211_local *local = sdata->local; struct sta_info *sta; - u16 capab; - u16 tid; - u8 *state; + u32 changed = BSS_CHANGED_ASSOC; rcu_read_lock(); - sta = sta_info_get(local, mgmt->sa); + sta = sta_info_get(local, ifsta->bssid); if (!sta) { rcu_read_unlock(); return; } - capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; + if (deauth) { + ifsta->direct_probe_tries = 0; + ifsta->auth_tries = 0; + } + ifsta->assoc_scan_tries = 0; + ifsta->assoc_tries = 0; - state = &sta->ampdu_mlme.tid_state_tx[tid]; + netif_tx_stop_all_queues(sdata->dev); + netif_carrier_off(sdata->dev); - spin_lock_bh(&sta->lock); + ieee80211_sta_tear_down_BA_sessions(sdata, sta->sta.addr); - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->lock); - goto addba_resp_exit; + if (self_disconnected) { + if (deauth) + ieee80211_send_deauth_disassoc(sdata, + IEEE80211_STYPE_DEAUTH, reason); + else + ieee80211_send_deauth_disassoc(sdata, + IEEE80211_STYPE_DISASSOC, reason); } - if (mgmt->u.action.u.addba_resp.dialog_token != - sta->ampdu_mlme.tid_tx[tid]->dialog_token) { - spin_unlock_bh(&sta->lock); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto addba_resp_exit; - } + ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; + changed |= ieee80211_reset_erp_info(sdata); - del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) - == WLAN_STATUS_SUCCESS) { - *state |= HT_ADDBA_RECEIVED_MSK; - sta->ampdu_mlme.addba_req_num[tid] = 0; + if (sdata->bss_conf.assoc_ht) + changed |= BSS_CHANGED_HT; - if (*state == HT_AGG_STATE_OPERATIONAL) - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); + sdata->bss_conf.assoc_ht = 0; + sdata->bss_conf.ht_conf = NULL; + sdata->bss_conf.ht_bss_conf = NULL; - spin_unlock_bh(&sta->lock); - } else { - sta->ampdu_mlme.addba_req_num[tid]++; - /* this will allow the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(hw, sta->addr, tid, - WLAN_BACK_INITIATOR); - } + ieee80211_led_assoc(local, 0); + sdata->bss_conf.assoc = 0; + + ieee80211_sta_send_apinfo(sdata, ifsta); + + if (self_disconnected) + ifsta->state = IEEE80211_STA_MLME_DISABLED; + + sta_info_unlink(&sta); -addba_resp_exit: rcu_read_unlock(); + + sta_info_destroy(sta); } -void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid, - u16 initiator, u16 reason_code) +static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 params; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for delba frame\n", dev->name); - return; - } + if (!sdata || !sdata->default_key || + sdata->default_key->conf.alg != ALG_WEP) + return 0; + return 1; +} - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); +static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss; + int bss_privacy; + int wep_privacy; + int privacy_invoked; - skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba)); + if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL)) + return 0; - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA; - params = (u16)(initiator << 11); /* bit 11 initiator */ - params |= (u16)(tid << 12); /* bit 15:12 TID number */ + bss = ieee80211_rx_bss_get(local, ifsta->bssid, + local->hw.conf.channel->center_freq, + ifsta->ssid, ifsta->ssid_len); + if (!bss) + return 0; - mgmt->u.action.u.delba.params = cpu_to_le16(params); - mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code); + bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY); + wep_privacy = !!ieee80211_sta_wep_configured(sdata); + privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED); - ieee80211_sta_tx(dev, skb, 0); -} + ieee80211_rx_bss_put(local, bss); -void ieee80211_send_bar(struct net_device *dev, u8 *ra, u16 tid, u16 ssn) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_bar *bar; - u16 bar_control = 0; + if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) + return 0; - skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom); - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer for " - "bar frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar)); - memset(bar, 0, sizeof(*bar)); - bar->frame_control = IEEE80211_FC(IEEE80211_FTYPE_CTL, - IEEE80211_STYPE_BACK_REQ); - memcpy(bar->ra, ra, ETH_ALEN); - memcpy(bar->ta, dev->dev_addr, ETH_ALEN); - bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL; - bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA; - bar_control |= (u16)(tid << 12); - bar->control = cpu_to_le16(bar_control); - bar->start_seq_num = cpu_to_le16(ssn); - - ieee80211_sta_tx(dev, skb, 0); + return 1; } -void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid, - u16 initiator, u16 reason) +static void ieee80211_associate(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - int ret, i; DECLARE_MAC_BUF(mac); - rcu_read_lock(); - - sta = sta_info_get(local, ra); - if (!sta) { - rcu_read_unlock(); + ifsta->assoc_tries++; + if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { + printk(KERN_DEBUG "%s: association with AP %s" + " timed out\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + ifsta->state = IEEE80211_STA_MLME_DISABLED; return; } - /* check if TID is in operational state */ - spin_lock_bh(&sta->lock); - if (sta->ampdu_mlme.tid_state_rx[tid] - != HT_AGG_STATE_OPERATIONAL) { - spin_unlock_bh(&sta->lock); - rcu_read_unlock(); + ifsta->state = IEEE80211_STA_MLME_ASSOCIATE; + printk(KERN_DEBUG "%s: associate with AP %s\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + if (ieee80211_privacy_mismatch(sdata, ifsta)) { + printk(KERN_DEBUG "%s: mismatch in privacy configuration and " + "mixed-cell disabled - abort association\n", sdata->dev->name); + ifsta->state = IEEE80211_STA_MLME_DISABLED; return; } - sta->ampdu_mlme.tid_state_rx[tid] = - HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - spin_unlock_bh(&sta->lock); - - /* stop HW Rx aggregation. ampdu_action existence - * already verified in session init so we add the BUG_ON */ - BUG_ON(!local->ops->ampdu_action); - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP, - ra, tid, NULL); - if (ret) - printk(KERN_DEBUG "HW problem - can not stop rx " - "aggregation for tid %d\n", tid); - - /* shutdown timer has not expired */ - if (initiator != WLAN_BACK_TIMER) - del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer); - - /* check if this is a self generated aggregation halt */ - if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER) - ieee80211_send_delba(dev, ra, tid, 0, reason); - - /* free the reordering buffer */ - for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) { - if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) { - /* release the reordered frames */ - dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]); - sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--; - sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL; - } - } - /* free resources */ - kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf); - kfree(sta->ampdu_mlme.tid_rx[tid]); - sta->ampdu_mlme.tid_rx[tid] = NULL; - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE; - rcu_read_unlock(); + ieee80211_send_assoc(sdata, ifsta); + + mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); } -static void ieee80211_sta_process_delba(struct net_device *dev, - struct ieee80211_mgmt *mgmt, size_t len) +static void ieee80211_associated(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; - u16 tid, params; - u16 initiator; + int disassoc; DECLARE_MAC_BUF(mac); - rcu_read_lock(); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) { - rcu_read_unlock(); - return; - } - - params = le16_to_cpu(mgmt->u.action.u.delba.params); - tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12; - initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11; - -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n", - print_mac(mac, mgmt->sa), - initiator ? "initiator" : "recipient", tid, - mgmt->u.action.u.delba.reason_code); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (initiator == WLAN_BACK_INITIATOR) - ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid, - WLAN_BACK_INITIATOR, 0); - else { /* WLAN_BACK_RECIPIENT */ - spin_lock_bh(&sta->lock); - sta->ampdu_mlme.tid_state_tx[tid] = - HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid, - WLAN_BACK_RECIPIENT); - } - rcu_read_unlock(); -} + /* 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 */ -/* - * After sending add Block Ack request we activated a timer until - * add Block Ack response will arrive from the recipient. - * If this timer expires sta_addba_resp_timer_expired will be executed. - */ -void sta_addba_resp_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and both sta_info and TID are needed, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u16 tid = *(u8 *)data; - struct sta_info *temp_sta = container_of((void *)data, - struct sta_info, timer_to_tid[tid]); - - struct ieee80211_local *local = temp_sta->local; - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - u8 *state; + ifsta->state = IEEE80211_STA_MLME_ASSOCIATED; rcu_read_lock(); - sta = sta_info_get(local, temp_sta->addr); + sta = sta_info_get(local, ifsta->bssid); if (!sta) { - rcu_read_unlock(); - return; - } - - state = &sta->ampdu_mlme.tid_state_tx[tid]; - /* check if the TID waits for addBA response */ - spin_lock_bh(&sta->lock); - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->lock); - *state = HT_AGG_STATE_IDLE; -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "timer expired on tid %d but we are not " - "expecting addBA response there", tid); -#endif - goto timer_expired_exit; + printk(KERN_DEBUG "%s: No STA entry for own AP %s\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + disassoc = 1; + } else { + disassoc = 0; + if (time_after(jiffies, + sta->last_rx + IEEE80211_MONITORING_INTERVAL)) { + if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) { + printk(KERN_DEBUG "%s: No ProbeResp from " + "current AP %s - assume out of " + "range\n", + sdata->dev->name, print_mac(mac, ifsta->bssid)); + disassoc = 1; + } else + ieee80211_send_probe_req(sdata, ifsta->bssid, + ifsta->ssid, + ifsta->ssid_len); + ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL; + } else { + ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL; + if (time_after(jiffies, ifsta->last_probe + + IEEE80211_PROBE_INTERVAL)) { + ifsta->last_probe = jiffies; + ieee80211_send_probe_req(sdata, ifsta->bssid, + ifsta->ssid, + ifsta->ssid_len); + } + } } -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); -#endif - - /* go through the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid, - WLAN_BACK_INITIATOR); - -timer_expired_exit: rcu_read_unlock(); -} -/* - * After accepting the AddBA Request we activated a timer, - * resetting it after each frame that arrives from the originator. - * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed. - */ -static void sta_rx_agg_session_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and various sta_info are needed here, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); -#endif - ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr, - (u16)*ptid, WLAN_BACK_TIMER, - WLAN_REASON_QSTA_TIMEOUT); + if (disassoc) + ieee80211_set_disassoc(sdata, ifsta, true, true, + WLAN_REASON_PREV_AUTH_NOT_VALID); + else + mod_timer(&ifsta->timer, jiffies + + IEEE80211_MONITORING_INTERVAL); } -void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int i; - for (i = 0; i < STA_TID_NUM; i++) { - ieee80211_stop_tx_ba_session(&local->hw, addr, i, - WLAN_BACK_INITIATOR); - ieee80211_sta_stop_rx_ba_session(dev, addr, i, - WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS); - } +static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name); + ifsta->flags |= IEEE80211_STA_AUTHENTICATED; + ieee80211_associate(sdata, ifsta); } -static void ieee80211_send_refuse_measurement_request(struct net_device *dev, - struct ieee80211_msrment_ie *request_ie, - const u8 *da, const u8 *bssid, - u8 dialog_token) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *msr_report; - skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom + - sizeof(struct ieee80211_msrment_ie)); +static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + u8 *pos; + struct ieee802_11_elems elems; - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer for " - "measurement report frame\n", dev->name); + pos = mgmt->u.auth.variable; + ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); + if (!elems.challenge) return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24); - memset(msr_report, 0, 24); - memcpy(msr_report->da, da, ETH_ALEN); - memcpy(msr_report->sa, dev->dev_addr, ETH_ALEN); - memcpy(msr_report->bssid, bssid, ETH_ALEN); - msr_report->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement)); - msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; - msr_report->u.action.u.measurement.action_code = - WLAN_ACTION_SPCT_MSR_RPRT; - msr_report->u.action.u.measurement.dialog_token = dialog_token; - - msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT; - msr_report->u.action.u.measurement.length = - sizeof(struct ieee80211_msrment_ie); - - memset(&msr_report->u.action.u.measurement.msr_elem, 0, - sizeof(struct ieee80211_msrment_ie)); - msr_report->u.action.u.measurement.msr_elem.token = request_ie->token; - msr_report->u.action.u.measurement.msr_elem.mode |= - IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED; - msr_report->u.action.u.measurement.msr_elem.type = request_ie->type; - - ieee80211_sta_tx(dev, skb, 0); -} - -static void ieee80211_sta_process_measurement_req(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - /* - * Ignoring measurement request is spec violation. - * Mandatory measurements must be reported optional - * measurements might be refused or reported incapable - * For now just refuse - * TODO: Answer basic measurement as unmeasured - */ - ieee80211_send_refuse_measurement_request(dev, - &mgmt->u.action.u.measurement.msr_elem, - mgmt->sa, mgmt->bssid, - mgmt->u.action.u.measurement.dialog_token); + ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2, + elems.challenge_len + 2, 1); } - -static void ieee80211_rx_mgmt_auth(struct net_device *dev, +static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_mgmt *mgmt, size_t len) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); u16 auth_alg, auth_transaction, status_code; DECLARE_MAC_BUF(mac); - if (ifsta->state != IEEE80211_AUTHENTICATE && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) + if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE && + sdata->vif.type != NL80211_IFTYPE_ADHOC) return; if (len < 24 + 6) return; - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) return; - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) return; @@ -1871,7 +1053,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev, auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); status_code = le16_to_cpu(mgmt->u.auth.status_code); - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { + if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { /* * IEEE 802.11 standard does not require authentication in IBSS * networks and most implementations do not seem to use it. @@ -1880,7 +1062,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev, */ if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) return; - ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0); + ieee80211_send_auth(sdata, ifsta, 2, NULL, 0, 0); } if (auth_alg != ifsta->auth_alg || @@ -1913,7 +1095,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev, algs[pos] == 0xff) continue; if (algs[pos] == WLAN_AUTH_SHARED_KEY && - !ieee80211_sta_wep_configured(dev)) + !ieee80211_sta_wep_configured(sdata)) continue; ifsta->auth_alg = algs[pos]; break; @@ -1925,19 +1107,19 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev, switch (ifsta->auth_alg) { case WLAN_AUTH_OPEN: case WLAN_AUTH_LEAP: - ieee80211_auth_completed(dev, ifsta); + ieee80211_auth_completed(sdata, ifsta); break; case WLAN_AUTH_SHARED_KEY: if (ifsta->auth_transaction == 4) - ieee80211_auth_completed(dev, ifsta); + ieee80211_auth_completed(sdata, ifsta); else - ieee80211_auth_challenge(dev, ifsta, mgmt, len); + ieee80211_auth_challenge(sdata, ifsta, mgmt, len); break; } } -static void ieee80211_rx_mgmt_deauth(struct net_device *dev, +static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_mgmt *mgmt, size_t len) @@ -1954,22 +1136,22 @@ static void ieee80211_rx_mgmt_deauth(struct net_device *dev, reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) - printk(KERN_DEBUG "%s: deauthenticated\n", dev->name); + printk(KERN_DEBUG "%s: deauthenticated\n", sdata->dev->name); - if (ifsta->state == IEEE80211_AUTHENTICATE || - ifsta->state == IEEE80211_ASSOCIATE || - ifsta->state == IEEE80211_ASSOCIATED) { - ifsta->state = IEEE80211_AUTHENTICATE; + if (ifsta->state == IEEE80211_STA_MLME_AUTHENTICATE || + ifsta->state == IEEE80211_STA_MLME_ASSOCIATE || + ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) { + ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE; mod_timer(&ifsta->timer, jiffies + IEEE80211_RETRY_AUTH_INTERVAL); } - ieee80211_set_disassoc(dev, ifsta, 1); + ieee80211_set_disassoc(sdata, ifsta, true, false, 0); ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED; } -static void ieee80211_rx_mgmt_disassoc(struct net_device *dev, +static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_mgmt *mgmt, size_t len) @@ -1986,15 +1168,15 @@ static void ieee80211_rx_mgmt_disassoc(struct net_device *dev, reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); if (ifsta->flags & IEEE80211_STA_ASSOCIATED) - printk(KERN_DEBUG "%s: disassociated\n", dev->name); + printk(KERN_DEBUG "%s: disassociated\n", sdata->dev->name); - if (ifsta->state == IEEE80211_ASSOCIATED) { - ifsta->state = IEEE80211_ASSOCIATE; + if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) { + ifsta->state = IEEE80211_STA_MLME_ASSOCIATE; mod_timer(&ifsta->timer, jiffies + IEEE80211_RETRY_AUTH_INTERVAL); } - ieee80211_set_disassoc(dev, ifsta, 0); + ieee80211_set_disassoc(sdata, ifsta, false, false, 0); } @@ -2005,7 +1187,6 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, int reassoc) { struct ieee80211_local *local = sdata->local; - struct net_device *dev = sdata->dev; struct ieee80211_supported_band *sband; struct sta_info *sta; u64 rates, basic_rates; @@ -2020,7 +1201,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, /* AssocResp and ReassocResp have identical structure, so process both * of them in this function. */ - if (ifsta->state != IEEE80211_ASSOCIATE) + if (ifsta->state != IEEE80211_STA_MLME_ASSOCIATE) return; if (len < 24 + 6) @@ -2035,12 +1216,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: RX %sssocResp from %s (capab=0x%x " "status=%d aid=%d)\n", - dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa), + sdata->dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa), capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); if (status_code != WLAN_STATUS_SUCCESS) { printk(KERN_DEBUG "%s: AP denied association (code=%d)\n", - dev->name, status_code); + 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. */ @@ -2050,7 +1231,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not " - "set\n", dev->name, aid); + "set\n", sdata->dev->name, aid); aid &= ~(BIT(15) | BIT(14)); pos = mgmt->u.assoc_resp.variable; @@ -2058,11 +1239,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (!elems.supp_rates) { printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n", - dev->name); + sdata->dev->name); return; } - printk(KERN_DEBUG "%s: associated\n", dev->name); + printk(KERN_DEBUG "%s: associated\n", sdata->dev->name); ifsta->aid = aid; ifsta->ap_capab = capab_info; @@ -2077,17 +1258,17 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, /* Add STA entry for the AP */ sta = sta_info_get(local, ifsta->bssid); if (!sta) { - struct ieee80211_sta_bss *bss; + struct ieee80211_bss *bss; int err; sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC); if (!sta) { printk(KERN_DEBUG "%s: failed to alloc STA entry for" - " the AP\n", dev->name); + " the AP\n", sdata->dev->name); rcu_read_unlock(); return; } - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, + bss = ieee80211_rx_bss_get(local, ifsta->bssid, local->hw.conf.channel->center_freq, ifsta->ssid, ifsta->ssid_len); if (bss) { @@ -2100,10 +1281,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, err = sta_info_insert(sta); if (err) { printk(KERN_DEBUG "%s: failed to insert STA entry for" - " the AP (error %d)\n", dev->name, err); + " the AP (error %d)\n", sdata->dev->name, err); rcu_read_unlock(); return; } + /* update new sta with its last rx activity */ + sta->last_rx = jiffies; } /* @@ -2151,8 +1334,8 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, } } - sta->supp_rates[local->hw.conf.channel->band] = rates; - sdata->basic_rates = basic_rates; + sta->sta.supp_rates[local->hw.conf.channel->band] = rates; + sdata->bss_conf.basic_rates = basic_rates; /* cf. IEEE 802.11 9.2.12 */ if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && @@ -2166,19 +1349,19 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, struct ieee80211_ht_bss_info bss_info; ieee80211_ht_cap_ie_to_ht_info( (struct ieee80211_ht_cap *) - elems.ht_cap_elem, &sta->ht_info); + elems.ht_cap_elem, &sta->sta.ht_info); ieee80211_ht_addt_info_ie_to_ht_bss_info( (struct ieee80211_ht_addt_info *) elems.ht_info_elem, &bss_info); - ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info); + ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info); } - rate_control_rate_init(sta, local); + rate_control_rate_init(sta); if (elems.wmm_param) { set_sta_flags(sta, WLAN_STA_WME); rcu_read_unlock(); - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, + ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param, elems.wmm_param_len); } else rcu_read_unlock(); @@ -2187,234 +1370,26 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, * ieee80211_set_associated() will tell the driver */ bss_conf->aid = aid; bss_conf->assoc_capability = capab_info; - ieee80211_set_associated(dev, ifsta, 1); - - ieee80211_associated(dev, ifsta); -} - - -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_add(struct net_device *dev, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - u8 hash_idx; - - if (bss_mesh_cfg(bss)) - hash_idx = mesh_id_hash(bss_mesh_id(bss), - bss_mesh_id_len(bss)); - else - hash_idx = STA_HASH(bss->bssid); - - bss->hnext = local->sta_bss_hash[hash_idx]; - local->sta_bss_hash[hash_idx] = bss; -} - - -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_sta_bss *b, *prev = NULL; - b = local->sta_bss_hash[STA_HASH(bss->bssid)]; - while (b) { - if (b == bss) { - if (!prev) - local->sta_bss_hash[STA_HASH(bss->bssid)] = - bss->hnext; - else - prev->hnext = bss->hnext; - break; - } - prev = b; - b = b->hnext; - } -} - - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - bss = kzalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->bssid, bssid, ETH_ALEN); - bss->freq = freq; - if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) { - memcpy(bss->ssid, ssid, ssid_len); - bss->ssid_len = ssid_len; - } - - spin_lock_bh(&local->sta_bss_lock); - /* TODO: order by RSSI? */ - list_add_tail(&bss->list, &local->sta_bss_list); - __ieee80211_rx_bss_hash_add(dev, bss); - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - bss = local->sta_bss_hash[STA_HASH(bssid)]; - while (bss) { - if (!bss_mesh_cfg(bss) && - !memcmp(bss->bssid, bssid, ETH_ALEN) && - bss->freq == freq && - bss->ssid_len == ssid_len && - (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) { - atomic_inc(&bss->users); - break; - } - bss = bss->hnext; - } - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -#ifdef CONFIG_MAC80211_MESH -static struct ieee80211_sta_bss * -ieee80211_rx_mesh_bss_get(struct net_device *dev, u8 *mesh_id, int mesh_id_len, - u8 *mesh_cfg, int freq) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)]; - while (bss) { - if (bss_mesh_cfg(bss) && - !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) && - bss->freq == freq && - mesh_id_len == bss->mesh_id_len && - (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id, - mesh_id_len))) { - atomic_inc(&bss->users); - break; - } - bss = bss->hnext; - } - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -static struct ieee80211_sta_bss * -ieee80211_rx_mesh_bss_add(struct net_device *dev, u8 *mesh_id, int mesh_id_len, - u8 *mesh_cfg, int mesh_config_len, int freq) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - if (mesh_config_len != MESH_CFG_LEN) - return NULL; - - bss = kzalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; + ieee80211_set_associated(sdata, ifsta); - bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC); - if (!bss->mesh_cfg) { - kfree(bss); - return NULL; - } - - if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) { - bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC); - if (!bss->mesh_id) { - kfree(bss->mesh_cfg); - kfree(bss); - return NULL; - } - memcpy(bss->mesh_id, mesh_id, mesh_id_len); - } - - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN); - bss->mesh_id_len = mesh_id_len; - bss->freq = freq; - spin_lock_bh(&local->sta_bss_lock); - /* TODO: order by RSSI? */ - list_add_tail(&bss->list, &local->sta_bss_list); - __ieee80211_rx_bss_hash_add(dev, bss); - spin_unlock_bh(&local->sta_bss_lock); - return bss; + ieee80211_associated(sdata, ifsta); } -#endif -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->ht_add_ie); - kfree(bss_mesh_id(bss)); - kfree(bss_mesh_cfg(bss)); - kfree(bss); -} - -static void ieee80211_rx_bss_put(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss) -{ - local_bh_disable(); - if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) { - local_bh_enable(); - return; - } - - __ieee80211_rx_bss_hash_del(local, bss); - list_del(&bss->list); - spin_unlock_bh(&local->sta_bss_lock); - ieee80211_rx_bss_free(bss); -} - - -void ieee80211_rx_bss_list_init(struct ieee80211_local *local) -{ - spin_lock_init(&local->sta_bss_lock); - INIT_LIST_HEAD(&local->sta_bss_list); -} - - -void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local) -{ - struct ieee80211_sta_bss *bss, *tmp; - - list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list) - ieee80211_rx_bss_put(local, bss); -} - - -static int ieee80211_sta_join_ibss(struct net_device *dev, +static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, - struct ieee80211_sta_bss *bss) + struct ieee80211_bss *bss) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; int res, rates, i, j; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; u8 *pos; - struct ieee80211_sub_if_data *sdata; struct ieee80211_supported_band *sband; union iwreq_data wrqu; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - /* Remove possible STA entries from other IBSS networks. */ sta_info_flush_delayed(sdata); @@ -2432,7 +1407,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, sdata->drop_unencrypted = bss->capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0; - res = ieee80211_set_freq(dev, bss->freq); + res = ieee80211_set_freq(sdata, bss->freq); if (res) return res; @@ -2445,10 +1420,10 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + sizeof(mgmt->u.beacon)); memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon)); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_PROBE_RESP); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_PROBE_RESP); memset(mgmt->da, 0xff, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, 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); @@ -2505,108 +1480,38 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, } ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates; - ieee80211_sta_def_wmm_params(dev, bss, 1); + ieee80211_sta_def_wmm_params(sdata, bss); - ifsta->state = IEEE80211_IBSS_JOINED; + ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED; mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); + ieee80211_led_assoc(local, true); + memset(&wrqu, 0, sizeof(wrqu)); memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); + wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL); return res; } -u64 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; - int i, j; - sband = local->hw.wiphy->bands[band]; - - if (!sband) { - WARN_ON(1); - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - } - - bitrates = sband->bitrates; - num_rates = sband->n_bitrates; - supp_rates = 0; - for (i = 0; i < elems->supp_rates_len + - elems->ext_supp_rates_len; i++) { - u8 rate = 0; - int own_rate; - if (i < elems->supp_rates_len) - rate = elems->supp_rates[i]; - else if (elems->ext_supp_rates) - rate = elems->ext_supp_rates - [i - elems->supp_rates_len]; - own_rate = 5 * (rate & 0x7f); - for (j = 0; j < num_rates; j++) - if (bitrates[j].bitrate == own_rate) - supp_rates |= BIT(j); - } - return supp_rates; -} - - -static void ieee80211_rx_bss_info(struct net_device *dev, +static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status, struct ieee802_11_elems *elems, - int beacon) + bool beacon) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int freq, clen; - struct ieee80211_sta_bss *bss; + struct ieee80211_local *local = sdata->local; + int freq; + struct ieee80211_bss *bss; struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u64 beacon_timestamp, rx_timestamp; struct ieee80211_channel *channel; + u64 beacon_timestamp, rx_timestamp; + u64 supp_rates = 0; + enum ieee80211_band band = rx_status->band; DECLARE_MAC_BUF(mac); DECLARE_MAC_BUF(mac2); - if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN)) - return; /* ignore ProbeResp to foreign address */ - - beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp); - - if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id && - elems->mesh_config && mesh_matches_local(elems, dev)) { - u64 rates = ieee80211_sta_get_rates(local, elems, - rx_status->band); - - mesh_neighbour_update(mgmt->sa, rates, dev, - mesh_peer_accepts_plinks(elems, dev)); - } - - rcu_read_lock(); - - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems->supp_rates && - memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 && - (sta = sta_info_get(local, mgmt->sa))) { - u64 prev_rates; - u64 supp_rates = ieee80211_sta_get_rates(local, elems, - rx_status->band); - - prev_rates = sta->supp_rates[rx_status->band]; - sta->supp_rates[rx_status->band] &= supp_rates; - if (sta->supp_rates[rx_status->band] == 0) { - /* No matching rates - this should not really happen. - * Make sure that at least one rate is marked - * supported to avoid issues with TX rate ctrl. */ - sta->supp_rates[rx_status->band] = - sdata->u.sta.supp_rates_bits[rx_status->band]; - } - } - - rcu_read_unlock(); - if (elems->ds_params && elems->ds_params_len == 1) freq = ieee80211_channel_to_frequency(elems->ds_params[0]); else @@ -2617,205 +1522,60 @@ static void ieee80211_rx_bss_info(struct net_device *dev, if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; -#ifdef CONFIG_MAC80211_MESH - if (elems->mesh_config) - bss = ieee80211_rx_mesh_bss_get(dev, elems->mesh_id, - elems->mesh_id_len, elems->mesh_config, freq); - else -#endif - bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq, - elems->ssid, elems->ssid_len); - if (!bss) { -#ifdef CONFIG_MAC80211_MESH - if (elems->mesh_config) - bss = ieee80211_rx_mesh_bss_add(dev, elems->mesh_id, - elems->mesh_id_len, elems->mesh_config, - elems->mesh_config_len, freq); - else -#endif - bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq, - elems->ssid, elems->ssid_len); - if (!bss) - return; - } else { -#if 0 - /* TODO: order by RSSI? */ - spin_lock_bh(&local->sta_bss_lock); - list_move_tail(&bss->list, &local->sta_bss_list); - spin_unlock_bh(&local->sta_bss_lock); -#endif - } + if (sdata->vif.type == NL80211_IFTYPE_ADHOC && elems->supp_rates && + memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) { + supp_rates = ieee80211_sta_get_rates(local, elems, band); - /* save the ERP value so that it is available at association time */ - if (elems->erp_info && elems->erp_info_len >= 1) { - bss->erp_value = elems->erp_info[0]; - bss->has_erp_value = 1; - } + rcu_read_lock(); - 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; - } + sta = sta_info_get(local, mgmt->sa); + if (sta) { + u64 prev_rates; - if (elems->ht_info_elem && - (!bss->ht_add_ie || - bss->ht_add_ie_len != elems->ht_info_elem_len || - memcmp(bss->ht_add_ie, elems->ht_info_elem, - elems->ht_info_elem_len))) { - kfree(bss->ht_add_ie); - bss->ht_add_ie = - kmalloc(elems->ht_info_elem_len + 2, GFP_ATOMIC); - if (bss->ht_add_ie) { - memcpy(bss->ht_add_ie, elems->ht_info_elem - 2, - elems->ht_info_elem_len + 2); - bss->ht_add_ie_len = elems->ht_info_elem_len + 2; - } else - bss->ht_add_ie_len = 0; - } else if (!elems->ht_info_elem && bss->ht_add_ie) { - kfree(bss->ht_add_ie); - bss->ht_add_ie = NULL; - bss->ht_add_ie_len = 0; - } + prev_rates = sta->sta.supp_rates[band]; + /* make sure mandatory rates are always added */ + sta->sta.supp_rates[band] = supp_rates | + ieee80211_mandatory_rates(local, band); - bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int); - bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info); - - bss->supp_rates_len = 0; - if (elems->supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems->supp_rates_len) - clen = elems->supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates, - clen); - bss->supp_rates_len += clen; - } - if (elems->ext_supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems->ext_supp_rates_len) - clen = elems->ext_supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], - elems->ext_supp_rates, clen); - bss->supp_rates_len += clen; +#ifdef CONFIG_MAC80211_IBSS_DEBUG + if (sta->sta.supp_rates[band] != prev_rates) + printk(KERN_DEBUG "%s: updated supp_rates set " + "for %s based on beacon info (0x%llx | " + "0x%llx -> 0x%llx)\n", + sdata->dev->name, + print_mac(mac, sta->sta.addr), + (unsigned long long) prev_rates, + (unsigned long long) supp_rates, + (unsigned long long) sta->sta.supp_rates[band]); +#endif + } else { + ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid, + mgmt->sa, supp_rates); + } + + rcu_read_unlock(); } - bss->band = rx_status->band; + bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems, + freq, beacon); + if (!bss) + return; - bss->timestamp = beacon_timestamp; - bss->last_update = jiffies; - bss->signal = rx_status->signal; - bss->noise = rx_status->noise; - bss->qual = rx_status->qual; - if (!beacon && !bss->probe_resp) - bss->probe_resp = true; + /* was just updated in ieee80211_bss_info_update */ + beacon_timestamp = bss->timestamp; /* * In STA mode, the remaining parameters should not be overridden * by beacons because they're not necessarily accurate there. */ - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - bss->probe_resp && beacon) { + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && + bss->last_probe_resp && beacon) { ieee80211_rx_bss_put(local, bss); return; } - if (elems->wpa && - (!bss->wpa_ie || bss->wpa_ie_len != elems->wpa_len || - memcmp(bss->wpa_ie, elems->wpa, elems->wpa_len))) { - kfree(bss->wpa_ie); - bss->wpa_ie = kmalloc(elems->wpa_len + 2, GFP_ATOMIC); - if (bss->wpa_ie) { - memcpy(bss->wpa_ie, elems->wpa - 2, elems->wpa_len + 2); - bss->wpa_ie_len = elems->wpa_len + 2; - } else - bss->wpa_ie_len = 0; - } else if (!elems->wpa && bss->wpa_ie) { - kfree(bss->wpa_ie); - bss->wpa_ie = NULL; - bss->wpa_ie_len = 0; - } - - if (elems->rsn && - (!bss->rsn_ie || bss->rsn_ie_len != elems->rsn_len || - memcmp(bss->rsn_ie, elems->rsn, elems->rsn_len))) { - kfree(bss->rsn_ie); - bss->rsn_ie = kmalloc(elems->rsn_len + 2, GFP_ATOMIC); - if (bss->rsn_ie) { - memcpy(bss->rsn_ie, elems->rsn - 2, elems->rsn_len + 2); - bss->rsn_ie_len = elems->rsn_len + 2; - } else - bss->rsn_ie_len = 0; - } else if (!elems->rsn && bss->rsn_ie) { - kfree(bss->rsn_ie); - bss->rsn_ie = NULL; - bss->rsn_ie_len = 0; - } - - /* - * Cf. - * http://www.wipo.int/pctdb/en/wo.jsp?wo=2007047181&IA=WO2007047181&DISPLAY=DESC - * - * quoting: - * - * In particular, "Wi-Fi CERTIFIED for WMM - Support for Multimedia - * Applications with Quality of Service in Wi-Fi Networks," Wi- Fi - * Alliance (September 1, 2004) is incorporated by reference herein. - * The inclusion of the WMM Parameters in probe responses and - * association responses is mandatory for WMM enabled networks. The - * inclusion of the WMM Parameters in beacons, however, is optional. - */ - - if (elems->wmm_param && - (!bss->wmm_ie || bss->wmm_ie_len != elems->wmm_param_len || - memcmp(bss->wmm_ie, elems->wmm_param, elems->wmm_param_len))) { - kfree(bss->wmm_ie); - bss->wmm_ie = kmalloc(elems->wmm_param_len + 2, GFP_ATOMIC); - if (bss->wmm_ie) { - memcpy(bss->wmm_ie, elems->wmm_param - 2, - elems->wmm_param_len + 2); - bss->wmm_ie_len = elems->wmm_param_len + 2; - } else - bss->wmm_ie_len = 0; - } else if (elems->wmm_info && - (!bss->wmm_ie || bss->wmm_ie_len != elems->wmm_info_len || - memcmp(bss->wmm_ie, elems->wmm_info, - elems->wmm_info_len))) { - /* As for certain AP's Fifth bit is not set in WMM IE in - * beacon frames.So while parsing the beacon frame the - * wmm_info structure is used instead of wmm_param. - * wmm_info structure was never used to set bss->wmm_ie. - * This code fixes this problem by copying the WME - * information from wmm_info to bss->wmm_ie and enabling - * n-band association. - */ - kfree(bss->wmm_ie); - bss->wmm_ie = kmalloc(elems->wmm_info_len + 2, GFP_ATOMIC); - if (bss->wmm_ie) { - memcpy(bss->wmm_ie, elems->wmm_info - 2, - elems->wmm_info_len + 2); - bss->wmm_ie_len = elems->wmm_info_len + 2; - } else - bss->wmm_ie_len = 0; - } else if (!elems->wmm_param && !elems->wmm_info && bss->wmm_ie) { - kfree(bss->wmm_ie); - bss->wmm_ie = NULL; - bss->wmm_ie_len = 0; - } - /* check if we need to merge IBSS */ - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon && - !local->sta_sw_scanning && !local->sta_hw_scanning && + if (sdata->vif.type == NL80211_IFTYPE_ADHOC && beacon && bss->capability & WLAN_CAPABILITY_IBSS && bss->freq == local->oper_channel->center_freq && elems->ssid_len == sdata->u.sta.ssid_len && @@ -2837,7 +1597,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev, * e.g: at 1 MBit that means mactime is 192 usec earlier * (=24 bytes * 8 usecs/byte) than the beacon timestamp. */ - int rate = local->hw.wiphy->bands[rx_status->band]-> + int rate = local->hw.wiphy->bands[band]-> bitrates[rx_status->rate_idx].bitrate; rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate); } else if (local && local->ops && local->ops->get_tsf) @@ -2857,15 +1617,15 @@ static void ieee80211_rx_bss_info(struct net_device *dev, jiffies); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ if (beacon_timestamp > rx_timestamp) { -#ifndef CONFIG_MAC80211_IBSS_DEBUG +#ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: beacon TSF higher than " "local TSF - IBSS merge with BSSID %s\n", - dev->name, print_mac(mac, mgmt->bssid)); + sdata->dev->name, print_mac(mac, mgmt->bssid)); #endif - ieee80211_sta_join_ibss(dev, &sdata->u.sta, bss); - ieee80211_ibss_add_sta(dev, NULL, + ieee80211_sta_join_ibss(sdata, &sdata->u.sta, bss); + ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid, mgmt->sa, - BIT(rx_status->rate_idx)); + supp_rates); } } @@ -2873,13 +1633,17 @@ static void ieee80211_rx_bss_info(struct net_device *dev, } -static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev, +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) { size_t baselen; struct ieee802_11_elems elems; + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + + if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN)) + return; /* ignore ProbeResp to foreign address */ baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; if (baselen > len) @@ -2888,20 +1652,27 @@ static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev, ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, &elems); - ieee80211_rx_bss_info(dev, mgmt, len, rx_status, &elems, 0); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false); + + /* direct probe may be part of the association flow */ + if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE, + &ifsta->request)) { + printk(KERN_DEBUG "%s direct probe responded\n", + sdata->dev->name); + ieee80211_authenticate(sdata, ifsta); + } } -static void ieee80211_rx_mgmt_beacon(struct net_device *dev, +static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { - struct ieee80211_sub_if_data *sdata; struct ieee80211_if_sta *ifsta; size_t baselen; struct ieee802_11_elems elems; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; struct ieee80211_conf *conf = &local->hw.conf; u32 changed = 0; @@ -2912,10 +1683,9 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev, ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems); - ieee80211_rx_bss_info(dev, mgmt, len, rx_status, &elems, 1); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true); - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + if (sdata->vif.type != NL80211_IFTYPE_STATION) return; ifsta = &sdata->u.sta; @@ -2923,15 +1693,9 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev, memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) return; - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, + ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param, elems.wmm_param_len); - /* Do not send changes to driver if we are scanning. This removes - * requirement that driver's bss_info_changed function needs to be - * atomic. */ - if (local->sta_sw_scanning || local->sta_hw_scanning) - return; - if (elems.erp_info && elems.erp_info_len >= 1) changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]); else { @@ -2955,14 +1719,13 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev, } -static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, +static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; int tx_last_beacon; struct sk_buff *skb; struct ieee80211_mgmt *resp; @@ -2973,8 +1736,8 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, DECLARE_MAC_BUF(mac3); #endif - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS || - ifsta->state != IEEE80211_IBSS_JOINED || + if (sdata->vif.type != NL80211_IFTYPE_ADHOC || + ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED || len < 24 + 2 || !ifsta->probe_resp) return; @@ -2986,7 +1749,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: RX ProbeReq SA=%s DA=%s BSSID=" "%s (tx_last_beacon=%d)\n", - dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da), + sdata->dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da), print_mac(mac3, mgmt->bssid), tx_last_beacon); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ @@ -3004,7 +1767,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq " "from %s\n", - dev->name, print_mac(mac, mgmt->sa)); + sdata->dev->name, print_mac(mac, mgmt->sa)); #endif return; } @@ -3024,74 +1787,15 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, memcpy(resp->da, mgmt->sa, ETH_ALEN); #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n", - dev->name, print_mac(mac, resp->da)); + sdata->dev->name, print_mac(mac, resp->da)); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - ieee80211_sta_tx(dev, skb, 0); -} - -static void ieee80211_rx_mgmt_action(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (len < IEEE80211_MIN_ACTION_SIZE) - return; - - switch (mgmt->u.action.category) { - case WLAN_CATEGORY_SPECTRUM_MGMT: - if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ) - break; - switch (mgmt->u.action.u.chan_switch.action_code) { - case WLAN_ACTION_SPCT_MSR_REQ: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.measurement))) - break; - ieee80211_sta_process_measurement_req(dev, mgmt, len); - break; - } - break; - case WLAN_CATEGORY_BACK: - switch (mgmt->u.action.u.addba_req.action_code) { - case WLAN_ACTION_ADDBA_REQ: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_req))) - break; - ieee80211_sta_process_addba_request(dev, mgmt, len); - break; - case WLAN_ACTION_ADDBA_RESP: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_resp))) - break; - ieee80211_sta_process_addba_resp(dev, mgmt, len); - break; - case WLAN_ACTION_DELBA: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.delba))) - break; - ieee80211_sta_process_delba(dev, mgmt, len); - break; - } - break; - case PLINK_CATEGORY: - if (ieee80211_vif_is_mesh(&sdata->vif)) - mesh_rx_plink_frame(dev, mgmt, len, rx_status); - break; - case MESH_PATH_SEL_CATEGORY: - if (ieee80211_vif_is_mesh(&sdata->vif)) - mesh_rx_path_sel_frame(dev, mgmt, len); - break; - } + ieee80211_tx_skb(sdata, skb, 0); } -void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, +void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, struct ieee80211_rx_status *rx_status) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; + struct ieee80211_local *local = sdata->local; struct ieee80211_if_sta *ifsta; struct ieee80211_mgmt *mgmt; u16 fc; @@ -3099,7 +1803,6 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, if (skb->len < 24) goto fail; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); ifsta = &sdata->u.sta; mgmt = (struct ieee80211_mgmt *) skb->data; @@ -3109,7 +1812,6 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, case IEEE80211_STYPE_PROBE_REQ: case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: - case IEEE80211_STYPE_ACTION: memcpy(skb->cb, rx_status, sizeof(*rx_status)); case IEEE80211_STYPE_AUTH: case IEEE80211_STYPE_ASSOC_RESP: @@ -3125,17 +1827,14 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, kfree_skb(skb); } - -static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, +static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_rx_status *rx_status; - struct ieee80211_sub_if_data *sdata; struct ieee80211_if_sta *ifsta; struct ieee80211_mgmt *mgmt; u16 fc; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); ifsta = &sdata->u.sta; rx_status = (struct ieee80211_rx_status *) skb->cb; @@ -3144,17 +1843,17 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_PROBE_REQ: - ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len, + ieee80211_rx_mgmt_probe_req(sdata, ifsta, mgmt, skb->len, rx_status); break; case IEEE80211_STYPE_PROBE_RESP: - ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status); + ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, rx_status); break; case IEEE80211_STYPE_BEACON: - ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status); + ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status); break; case IEEE80211_STYPE_AUTH: - ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len); + ieee80211_rx_mgmt_auth(sdata, ifsta, mgmt, skb->len); break; case IEEE80211_STYPE_ASSOC_RESP: ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0); @@ -3163,13 +1862,10 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1); break; case IEEE80211_STYPE_DEAUTH: - ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len); + ieee80211_rx_mgmt_deauth(sdata, ifsta, mgmt, skb->len); break; case IEEE80211_STYPE_DISASSOC: - ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len); - break; - case IEEE80211_STYPE_ACTION: - ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len, rx_status); + ieee80211_rx_mgmt_disassoc(sdata, ifsta, mgmt, skb->len); break; } @@ -3177,47 +1873,11 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, } -ieee80211_rx_result -ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) +static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_mgmt *mgmt; - __le16 fc; - - if (skb->len < 2) - return RX_DROP_UNUSABLE; - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = mgmt->frame_control; - - if (ieee80211_is_ctl(fc)) - return RX_CONTINUE; - - if (skb->len < 24) - return RX_DROP_MONITOR; - - if (ieee80211_is_probe_resp(fc)) { - ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } - - if (ieee80211_is_beacon(fc)) { - ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } - - return RX_CONTINUE; -} - - -static int ieee80211_sta_active_ibss(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; int active = 0; struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); @@ -3236,178 +1896,36 @@ static int ieee80211_sta_active_ibss(struct net_device *dev) } -static void ieee80211_sta_expire(struct net_device *dev, unsigned long exp_time) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta, *tmp; - LIST_HEAD(tmp_list); - DECLARE_MAC_BUF(mac); - unsigned long flags; - - spin_lock_irqsave(&local->sta_lock, flags); - list_for_each_entry_safe(sta, tmp, &local->sta_list, list) - if (time_after(jiffies, sta->last_rx + exp_time)) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: expiring inactive STA %s\n", - dev->name, print_mac(mac, sta->addr)); -#endif - __sta_info_unlink(&sta); - if (sta) - list_add(&sta->list, &tmp_list); - } - spin_unlock_irqrestore(&local->sta_lock, flags); - - list_for_each_entry_safe(sta, tmp, &tmp_list, list) - sta_info_destroy(sta); -} - - -static void ieee80211_sta_merge_ibss(struct net_device *dev, +static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); - ieee80211_sta_expire(dev, IEEE80211_IBSS_INACTIVITY_LIMIT); - if (ieee80211_sta_active_ibss(dev)) + ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT); + if (ieee80211_sta_active_ibss(sdata)) return; printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other " - "IBSS networks with same SSID (merge)\n", dev->name); - ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len); -} - - -#ifdef CONFIG_MAC80211_MESH -static void ieee80211_mesh_housekeeping(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - bool free_plinks; - - ieee80211_sta_expire(dev, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); - mesh_path_expire(dev); - - free_plinks = mesh_plink_availables(sdata); - if (free_plinks != sdata->u.sta.accepting_plinks) - ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); - - mod_timer(&ifsta->timer, jiffies + - IEEE80211_MESH_HOUSEKEEPING_INTERVAL); -} - - -void ieee80211_start_mesh(struct net_device *dev) -{ - struct ieee80211_if_sta *ifsta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; - ifsta->state = IEEE80211_MESH_UP; - ieee80211_sta_timer((unsigned long)sdata); + "IBSS networks with same SSID (merge)\n", sdata->dev->name); + ieee80211_request_scan(sdata, ifsta->ssid, ifsta->ssid_len); } -#endif -void ieee80211_sta_timer(unsigned long data) +static void ieee80211_sta_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(&sdata->wdev); + struct ieee80211_local *local = sdata->local; set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); queue_work(local->hw.workqueue, &ifsta->work); } -void ieee80211_sta_work(struct work_struct *work) -{ - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, u.sta.work); - struct net_device *dev = sdata->dev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_if_sta *ifsta; - struct sk_buff *skb; - - if (!netif_running(dev)) - return; - - if (local->sta_sw_scanning || local->sta_hw_scanning) - return; - - if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)) - return; - ifsta = &sdata->u.sta; - - while ((skb = skb_dequeue(&ifsta->skb_queue))) - ieee80211_sta_rx_queued_mgmt(dev, skb); - -#ifdef CONFIG_MAC80211_MESH - if (ifsta->preq_queue_len && - time_after(jiffies, - ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval))) - mesh_path_start_discovery(dev); -#endif - - if (ifsta->state != IEEE80211_AUTHENTICATE && - ifsta->state != IEEE80211_ASSOCIATE && - test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) { - 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; - } - - if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) { - if (ieee80211_sta_config_auth(dev, ifsta)) - return; - clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); - } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request)) - return; - - switch (ifsta->state) { - case IEEE80211_DISABLED: - break; - case IEEE80211_AUTHENTICATE: - ieee80211_authenticate(dev, ifsta); - break; - case IEEE80211_ASSOCIATE: - ieee80211_associate(dev, ifsta); - break; - case IEEE80211_ASSOCIATED: - ieee80211_associated(dev, ifsta); - break; - case IEEE80211_IBSS_SEARCH: - ieee80211_sta_find_ibss(dev, ifsta); - break; - case IEEE80211_IBSS_JOINED: - ieee80211_sta_merge_ibss(dev, ifsta); - break; -#ifdef CONFIG_MAC80211_MESH - case IEEE80211_MESH_UP: - ieee80211_mesh_housekeeping(dev, ifsta); - break; -#endif - default: - WARN_ON(1); - break; - } - - if (ieee80211_privacy_mismatch(dev, ifsta)) { - printk(KERN_DEBUG "%s: privacy configuration mismatch and " - "mixed-cell disabled - disassociate\n", dev->name); - - ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED); - ieee80211_set_disassoc(dev, ifsta, 0); - } -} - - -static void ieee80211_sta_reset_auth(struct net_device *dev, +static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; if (local->ops->reset_tsf) { /* Reset own TSF to allow time synchronization work. */ @@ -3427,29 +1945,15 @@ static void ieee80211_sta_reset_auth(struct net_device *dev, ifsta->auth_alg = WLAN_AUTH_OPEN; ifsta->auth_transaction = -1; ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - ifsta->auth_tries = ifsta->assoc_tries = 0; - netif_carrier_off(dev); + ifsta->assoc_scan_tries = 0; + ifsta->direct_probe_tries = 0; + ifsta->auth_tries = 0; + ifsta->assoc_tries = 0; + netif_tx_stop_all_queues(sdata->dev); + netif_carrier_off(sdata->dev); } -void ieee80211_sta_req_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && - (ifsta->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); - } -} - static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta, const char *ssid, int ssid_len) { @@ -3480,81 +1984,11 @@ static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta, return 0; } -static int ieee80211_sta_config_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_sta_bss *bss, *selected = NULL; - int top_rssi = 0, freq; - - spin_lock_bh(&local->sta_bss_lock); - freq = local->oper_channel->center_freq; - list_for_each_entry(bss, &local->sta_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; - } - } - if (selected) - atomic_inc(&selected->users); - spin_unlock_bh(&local->sta_bss_lock); - - if (selected) { - ieee80211_set_freq(dev, selected->freq); - if (!(ifsta->flags & IEEE80211_STA_SSID_SET)) - ieee80211_sta_set_ssid(dev, selected->ssid, - selected->ssid_len); - ieee80211_sta_set_bssid(dev, selected->bssid); - ieee80211_sta_def_wmm_params(dev, selected, 0); - ieee80211_rx_bss_put(local, selected); - ifsta->state = IEEE80211_AUTHENTICATE; - ieee80211_sta_reset_auth(dev, ifsta); - return 0; - } else { - if (ifsta->state != IEEE80211_AUTHENTICATE) { - if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) - ieee80211_sta_start_scan(dev, NULL, 0); - else - ieee80211_sta_start_scan(dev, ifsta->ssid, - ifsta->ssid_len); - ifsta->state = IEEE80211_AUTHENTICATE; - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - } else - ifsta->state = IEEE80211_DISABLED; - } - return -1; -} - - -static int ieee80211_sta_create_ibss(struct net_device *dev, +static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss; struct ieee80211_supported_band *sband; u8 bssid[ETH_ALEN], *pos; int i; @@ -3570,15 +2004,15 @@ static int ieee80211_sta_create_ibss(struct net_device *dev, * random number generator get different BSSID. */ get_random_bytes(bssid, ETH_ALEN); for (i = 0; i < ETH_ALEN; i++) - bssid[i] ^= dev->dev_addr[i]; + bssid[i] ^= sdata->dev->dev_addr[i]; bssid[0] &= ~0x01; bssid[0] |= 0x02; #endif printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n", - dev->name, print_mac(mac, bssid)); + sdata->dev->name, print_mac(mac, bssid)); - bss = ieee80211_rx_bss_add(dev, 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) @@ -3605,17 +2039,17 @@ static int ieee80211_sta_create_ibss(struct net_device *dev, *pos++ = (u8) (rate / 5); } - ret = ieee80211_sta_join_ibss(dev, ifsta, bss); + ret = ieee80211_sta_join_ibss(sdata, ifsta, bss); ieee80211_rx_bss_put(local, bss); return ret; } -static int ieee80211_sta_find_ibss(struct net_device *dev, +static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss; int found = 0; u8 bssid[ETH_ALEN]; int active_ibss; @@ -3625,13 +2059,13 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, if (ifsta->ssid_len == 0) return -EINVAL; - active_ibss = ieee80211_sta_active_ibss(dev); + active_ibss = ieee80211_sta_active_ibss(sdata); #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n", - dev->name, active_ibss); + sdata->dev->name, active_ibss); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - spin_lock_bh(&local->sta_bss_lock); - list_for_each_entry(bss, &local->sta_bss_list, list) { + 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)) @@ -3645,7 +2079,7 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0) break; } - spin_unlock_bh(&local->sta_bss_lock); + spin_unlock_bh(&local->bss_lock); #ifdef CONFIG_MAC80211_IBSS_DEBUG if (found) @@ -3653,34 +2087,46 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, "%s\n", print_mac(mac, bssid), print_mac(mac2, ifsta->bssid)); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 && - (bss = ieee80211_rx_bss_get(dev, bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len))) { + + if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { 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 %s" " based on configured SSID\n", - dev->name, print_mac(mac, bssid)); - ret = ieee80211_sta_join_ibss(dev, ifsta, bss); + sdata->dev->name, print_mac(mac, bssid)); + ret = ieee80211_sta_join_ibss(sdata, ifsta, bss); ieee80211_rx_bss_put(local, bss); return ret; } + +dont_join: #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG " did not try to join ibss\n"); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ /* Selected IBSS not found in current scan results - try to scan */ - if (ifsta->state == IEEE80211_IBSS_JOINED && - !ieee80211_sta_active_ibss(dev)) { + if (ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED && + !ieee80211_sta_active_ibss(sdata)) { mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); } else if (time_after(jiffies, local->last_scan_completed + IEEE80211_SCAN_INTERVAL)) { printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to " - "join\n", dev->name); - return ieee80211_sta_req_scan(dev, ifsta->ssid, + "join\n", sdata->dev->name); + return ieee80211_request_scan(sdata, ifsta->ssid, ifsta->ssid_len); - } else if (ifsta->state != IEEE80211_IBSS_JOINED) { + } else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) { int interval = IEEE80211_SCAN_INTERVAL; if (time_after(jiffies, ifsta->ibss_join_req + @@ -3688,10 +2134,10 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) && (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS))) - return ieee80211_sta_create_ibss(dev, ifsta); + return ieee80211_sta_create_ibss(sdata, ifsta); if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) { printk(KERN_DEBUG "%s: IBSS not allowed on" - " %d MHz\n", dev->name, + " %d MHz\n", sdata->dev->name, local->hw.conf.channel->center_freq); } @@ -3700,7 +2146,7 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, interval = IEEE80211_SCAN_INTERVAL_SLOW; } - ifsta->state = IEEE80211_IBSS_SEARCH; + ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH; mod_timer(&ifsta->timer, jiffies + interval); return 0; } @@ -3709,620 +2155,344 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, } -int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len) +static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta; - int res; + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss, *selected = NULL; + int top_rssi = 0, freq; - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; + 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; - ifsta = &sdata->u.sta; + 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->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) { - memset(ifsta->ssid, 0, sizeof(ifsta->ssid)); - memcpy(ifsta->ssid, ssid, len); - ifsta->ssid_len = len; - ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; + if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) && + bss->freq != freq) + continue; - res = 0; - /* - * Hack! MLME code needs to be cleaned up to have different - * entry points for configuration and internal selection change - */ - if (netif_running(sdata->dev)) - res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); - if (res) { - printk(KERN_DEBUG "%s: Failed to config new SSID to " - "the low-level driver\n", dev->name); - return res; - } - } + if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) && + memcmp(bss->bssid, ifsta->bssid, ETH_ALEN)) + continue; - if (len) - ifsta->flags |= IEEE80211_STA_SSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_SSID_SET; + if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) && + !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len)) + continue; - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { - ifsta->ibss_join_req = jiffies; - ifsta->state = IEEE80211_IBSS_SEARCH; - return ieee80211_sta_find_ibss(dev, ifsta); + if (!selected || top_rssi < bss->signal) { + selected = bss; + top_rssi = bss->signal; + } } + if (selected) + atomic_inc(&selected->users); + spin_unlock_bh(&local->bss_lock); - return 0; -} + if (selected) { + ieee80211_set_freq(sdata, selected->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); + /* 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 + + IEEE80211_SCAN_RESULT_EXPIRE)) + ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE; + else + ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; -int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - memcpy(ssid, ifsta->ssid, ifsta->ssid_len); - *len = ifsta->ssid_len; - return 0; + ieee80211_rx_bss_put(local, selected); + ieee80211_sta_reset_auth(sdata, ifsta); + return 0; + } else { + if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) { + ifsta->assoc_scan_tries++; + if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) + ieee80211_start_scan(sdata, NULL, 0); + else + ieee80211_start_scan(sdata, ifsta->ssid, + ifsta->ssid_len); + ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; + set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); + } else + ifsta->state = IEEE80211_STA_MLME_DISABLED; + } + return -1; } -int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid) +static void ieee80211_sta_work(struct work_struct *work) { - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, u.sta.work); + struct ieee80211_local *local = sdata->local; struct ieee80211_if_sta *ifsta; - int res; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; + struct sk_buff *skb; - if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { - memcpy(ifsta->bssid, bssid, 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) { - printk(KERN_DEBUG "%s: Failed to config new BSSID to " - "the low-level driver\n", dev->name); - return res; - } - } + if (!netif_running(sdata->dev)) + return; - if (is_valid_ether_addr(bssid)) - ifsta->flags |= IEEE80211_STA_BSSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_BSSID_SET; + if (local->sw_scanning || local->hw_scanning) + return; - return 0; -} + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION && + sdata->vif.type != NL80211_IFTYPE_ADHOC)) + return; + ifsta = &sdata->u.sta; + while ((skb = skb_dequeue(&ifsta->skb_queue))) + ieee80211_sta_rx_queued_mgmt(sdata, skb); -static void ieee80211_send_nullfunc(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - int powersave) -{ - struct sk_buff *skb; - struct ieee80211_hdr *nullfunc; - __le16 fc; + if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE && + 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); + return; + } - skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc " - "frame\n", sdata->dev->name); + if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) { + if (ieee80211_sta_config_auth(sdata, ifsta)) + return; + clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); + } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request)) return; + + switch (ifsta->state) { + case IEEE80211_STA_MLME_DISABLED: + break; + case IEEE80211_STA_MLME_DIRECT_PROBE: + ieee80211_direct_probe(sdata, ifsta); + break; + case IEEE80211_STA_MLME_AUTHENTICATE: + ieee80211_authenticate(sdata, ifsta); + break; + case IEEE80211_STA_MLME_ASSOCIATE: + ieee80211_associate(sdata, ifsta); + break; + case IEEE80211_STA_MLME_ASSOCIATED: + ieee80211_associated(sdata, ifsta); + break; + case IEEE80211_STA_MLME_IBSS_SEARCH: + ieee80211_sta_find_ibss(sdata, ifsta); + break; + case IEEE80211_STA_MLME_IBSS_JOINED: + ieee80211_sta_merge_ibss(sdata, ifsta); + break; + default: + WARN_ON(1); + break; } - skb_reserve(skb, local->hw.extra_tx_headroom); - nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24); - memset(nullfunc, 0, 24); - fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | - IEEE80211_FCTL_TODS); - if (powersave) - fc |= cpu_to_le16(IEEE80211_FCTL_PM); - nullfunc->frame_control = fc; - memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN); - memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN); - memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN); - - ieee80211_sta_tx(sdata->dev, skb, 0); -} + if (ieee80211_privacy_mismatch(sdata, ifsta)) { + printk(KERN_DEBUG "%s: privacy configuration mismatch and " + "mixed-cell disabled - disassociate\n", sdata->dev->name); + ieee80211_set_disassoc(sdata, ifsta, false, true, + WLAN_REASON_UNSPECIFIED); + } +} static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) { - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - ieee80211_vif_is_mesh(&sdata->vif)) - ieee80211_sta_timer((unsigned long)sdata); + if (sdata->vif.type == NL80211_IFTYPE_STATION) + queue_work(sdata->local->hw.workqueue, + &sdata->u.sta.work); } -void ieee80211_scan_completed(struct ieee80211_hw *hw) +/* interface setup */ +void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_local *local = hw_to_local(hw); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata; - union iwreq_data wrqu; + struct ieee80211_if_sta *ifsta; - local->last_scan_completed = jiffies; - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - - if (local->sta_hw_scanning) { - local->sta_hw_scanning = 0; - if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational " - "channel after scan\n", dev->name); - /* Restart STA timer for HW scan case */ - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - ieee80211_restart_sta_timer(sdata); - rcu_read_unlock(); + ifsta = &sdata->u.sta; + INIT_WORK(&ifsta->work, ieee80211_sta_work); + setup_timer(&ifsta->timer, ieee80211_sta_timer, + (unsigned long) sdata); + skb_queue_head_init(&ifsta->skb_queue); + + ifsta->capab = WLAN_CAPABILITY_ESS; + ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN | + IEEE80211_AUTH_ALG_SHARED_KEY; + ifsta->flags |= IEEE80211_STA_CREATE_IBSS | + IEEE80211_STA_AUTO_BSSID_SEL | + IEEE80211_STA_AUTO_CHANNEL_SEL; + if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4) + ifsta->flags |= IEEE80211_STA_WMM_ENABLED; +} - goto done; +/* + * Add a new IBSS station, will also be called by the RX code when, + * in IBSS mode, receiving a frame from a yet-unknown station, hence + * must be callable in atomic context. + */ +struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u8 *bssid, + u8 *addr, u64 supp_rates) +{ + struct ieee80211_local *local = sdata->local; + struct sta_info *sta; + DECLARE_MAC_BUF(mac); + int band = local->hw.conf.channel->band; + + /* TODO: Could consider removing the least recently used entry and + * allow new one to be added. */ + if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: No room for a new IBSS STA " + "entry %s\n", sdata->dev->name, print_mac(mac, addr)); + } + return NULL; } - local->sta_sw_scanning = 0; - if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational " - "channel after scan\n", dev->name); + if (compare_ether_addr(bssid, sdata->u.sta.bssid)) + return NULL; +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n", + wiphy_name(local->hw.wiphy), print_mac(mac, addr), sdata->dev->name); +#endif - netif_tx_lock_bh(local->mdev); - netif_addr_lock(local->mdev); - local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); + sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); + if (!sta) + return NULL; - netif_addr_unlock(local->mdev); - netif_tx_unlock_bh(local->mdev); + set_sta_flags(sta, WLAN_STA_AUTHORIZED); - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - /* Tell AP we're back */ - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) - ieee80211_send_nullfunc(local, sdata, 0); + /* make sure mandatory rates are always added */ + sta->sta.supp_rates[band] = supp_rates | + ieee80211_mandatory_rates(local, band); - ieee80211_restart_sta_timer(sdata); + rate_control_rate_init(sta); - netif_wake_queue(sdata->dev); - } - rcu_read_unlock(); + if (sta_info_insert(sta)) + return NULL; -done: - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) || - (!ifsta->state == IEEE80211_IBSS_JOINED && - !ieee80211_sta_active_ibss(dev))) - ieee80211_sta_find_ibss(dev, ifsta); - } + return sta; } -EXPORT_SYMBOL(ieee80211_scan_completed); -void ieee80211_sta_scan_work(struct work_struct *work) +/* configuration hooks */ +void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, scan_work.work); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_supported_band *sband; - struct ieee80211_channel *chan; - int skip; - unsigned long next_delay = 0; + struct ieee80211_local *local = sdata->local; - if (!local->sta_sw_scanning) + if (sdata->vif.type != NL80211_IFTYPE_STATION) return; - switch (local->scan_state) { - case SCAN_SET_CHANNEL: - /* - * Get current scan band. scan_band may be IEEE80211_NUM_BANDS - * after we successfully scanned the last channel of the last - * band (and the last band is supported by the hw) - */ - if (local->scan_band < IEEE80211_NUM_BANDS) - sband = local->hw.wiphy->bands[local->scan_band]; - else - sband = NULL; - - /* - * If we are at an unsupported band and have more bands - * left to scan, advance to the next supported one. - */ - while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) { - local->scan_band++; - sband = local->hw.wiphy->bands[local->scan_band]; - local->scan_channel_idx = 0; - } - - /* if no more bands/channels left, complete scan */ - if (!sband || local->scan_channel_idx >= sband->n_channels) { - ieee80211_scan_completed(local_to_hw(local)); - return; - } - skip = 0; - chan = &sband->channels[local->scan_channel_idx]; - - if (chan->flags & IEEE80211_CHAN_DISABLED || - (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - chan->flags & IEEE80211_CHAN_NO_IBSS)) - skip = 1; - - if (!skip) { - local->scan_channel = chan; - if (ieee80211_hw_config(local)) { - printk(KERN_DEBUG "%s: failed to set freq to " - "%d MHz for scan\n", dev->name, - chan->center_freq); - skip = 1; - } - } - - /* advance state machine to next channel/band */ - local->scan_channel_idx++; - if (local->scan_channel_idx >= sband->n_channels) { - /* - * scan_band may end up == IEEE80211_NUM_BANDS, but - * we'll catch that case above and complete the scan - * if that is the case. - */ - local->scan_band++; - local->scan_channel_idx = 0; - } + if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | + IEEE80211_STA_AUTO_BSSID_SEL)) && + (ifsta->flags & (IEEE80211_STA_SSID_SET | + IEEE80211_STA_AUTO_SSID_SEL))) { - if (skip) - break; + if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) + ieee80211_set_disassoc(sdata, ifsta, true, true, + WLAN_REASON_DEAUTH_LEAVING); - next_delay = IEEE80211_PROBE_DELAY + - usecs_to_jiffies(local->hw.channel_change_time); - local->scan_state = SCAN_SEND_PROBE; - break; - case SCAN_SEND_PROBE: - next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; - local->scan_state = SCAN_SET_CHANNEL; - - if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN) - break; - ieee80211_send_probe_req(dev, NULL, local->scan_ssid, - local->scan_ssid_len); - next_delay = IEEE80211_CHANNEL_TIME; - break; + set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); + queue_work(local->hw.workqueue, &ifsta->work); } - - if (local->sta_sw_scanning) - queue_delayed_work(local->hw.workqueue, &local->scan_work, - next_delay); } - -static int ieee80211_sta_start_scan(struct net_device *dev, - u8 *ssid, size_t ssid_len) +int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; + struct ieee80211_if_sta *ifsta; + int res; - if (ssid_len > IEEE80211_MAX_SSID_LEN) + if (len > IEEE80211_MAX_SSID_LEN) return -EINVAL; - /* MLME-SCAN.request (page 118) page 144 (11.1.3.1) - * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS - * BSSID: MACAddress - * SSID - * ScanType: ACTIVE, PASSIVE - * ProbeDelay: delay (in microseconds) to be used prior to transmitting - * a Probe frame during active scanning - * ChannelList - * MinChannelTime (>= ProbeDelay), in TU - * MaxChannelTime: (>= MinChannelTime), in TU - */ - - /* MLME-SCAN.confirm - * BSSDescriptionSet - * ResultCode: SUCCESS, INVALID_PARAMETERS - */ + ifsta = &sdata->u.sta; - if (local->sta_sw_scanning || local->sta_hw_scanning) { - if (local->scan_dev == dev) - return 0; - return -EBUSY; - } + if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) { + memset(ifsta->ssid, 0, sizeof(ifsta->ssid)); + memcpy(ifsta->ssid, ssid, len); + ifsta->ssid_len = len; + ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - if (local->ops->hw_scan) { - int rc = local->ops->hw_scan(local_to_hw(local), - ssid, ssid_len); - if (!rc) { - local->sta_hw_scanning = 1; - local->scan_dev = dev; + res = 0; + /* + * Hack! MLME code needs to be cleaned up to have different + * entry points for configuration and internal selection change + */ + if (netif_running(sdata->dev)) + res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); + if (res) { + printk(KERN_DEBUG "%s: Failed to config new SSID to " + "the low-level driver\n", sdata->dev->name); + return res; } - return rc; } - local->sta_sw_scanning = 1; + if (len) + ifsta->flags |= IEEE80211_STA_SSID_SET; + else + ifsta->flags &= ~IEEE80211_STA_SSID_SET; - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - netif_stop_queue(sdata->dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) - ieee80211_send_nullfunc(local, sdata, 1); + if (sdata->vif.type == NL80211_IFTYPE_ADHOC && + !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { + ifsta->ibss_join_req = jiffies; + ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH; + return ieee80211_sta_find_ibss(sdata, ifsta); } - rcu_read_unlock(); - - if (ssid) { - local->scan_ssid_len = ssid_len; - memcpy(local->scan_ssid, ssid, ssid_len); - } else - local->scan_ssid_len = 0; - local->scan_state = SCAN_SET_CHANNEL; - local->scan_channel_idx = 0; - local->scan_band = IEEE80211_BAND_2GHZ; - local->scan_dev = dev; - - netif_addr_lock_bh(local->mdev); - local->filter_flags |= FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); - netif_addr_unlock_bh(local->mdev); - - /* TODO: start scan as soon as all nullfunc frames are ACKed */ - queue_delayed_work(local->hw.workqueue, &local->scan_work, - IEEE80211_CHANNEL_TIME); return 0; } - -int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len) +int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return ieee80211_sta_start_scan(dev, ssid, ssid_len); - - 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); + memcpy(ssid, ifsta->ssid, ifsta->ssid_len); + *len = ifsta->ssid_len; return 0; } -static char * -ieee80211_sta_scan_result(struct net_device *dev, - struct iw_request_info *info, - struct ieee80211_sta_bss *bss, - char *current_ev, char *end_buf) +int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_event iwe; - - if (time_after(jiffies, - bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE)) - return current_ev; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWAP; - iwe.u.ap_addr.sa_family = ARPHRD_ETHER; - memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_ADDR_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWESSID; - if (bss_mesh_cfg(bss)) { - iwe.u.data.length = bss_mesh_id_len(bss); - iwe.u.data.flags = 1; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss_mesh_id(bss)); - } else { - iwe.u.data.length = bss->ssid_len; - iwe.u.data.flags = 1; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss->ssid); - } - - if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS) - || bss_mesh_cfg(bss)) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWMODE; - if (bss_mesh_cfg(bss)) - iwe.u.mode = IW_MODE_MESH; - else if (bss->capability & WLAN_CAPABILITY_ESS) - iwe.u.mode = IW_MODE_MASTER; - else - iwe.u.mode = IW_MODE_ADHOC; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, - &iwe, IW_EV_UINT_LEN); - } - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq); - iwe.u.freq.e = 0; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = bss->freq; - iwe.u.freq.e = 6; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVQUAL; - iwe.u.qual.qual = bss->qual; - iwe.u.qual.level = bss->signal; - iwe.u.qual.noise = bss->noise; - iwe.u.qual.updated = local->wstats_flags; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_QUAL_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWENCODE; - if (bss->capability & WLAN_CAPABILITY_PRIVACY) - iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; - else - iwe.u.data.flags = IW_ENCODE_DISABLED; - iwe.u.data.length = 0; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, ""); - - if (bss && bss->wpa_ie) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = bss->wpa_ie_len; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss->wpa_ie); - } - - if (bss && bss->rsn_ie) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = bss->rsn_ie_len; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss->rsn_ie); - } - - if (bss && bss->ht_ie) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = bss->ht_ie_len; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss->ht_ie); - } - - if (bss && bss->supp_rates_len > 0) { - /* display all supported rates in readable format */ - char *p = current_ev + iwe_stream_lcp_len(info); - int i; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWRATE; - /* Those two flags are ignored... */ - iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; - - for (i = 0; i < bss->supp_rates_len; i++) { - iwe.u.bitrate.value = ((bss->supp_rates[i] & - 0x7f) * 500000); - p = iwe_stream_add_value(info, current_ev, p, - end_buf, &iwe, IW_EV_PARAM_LEN); - } - current_ev = p; - } + struct ieee80211_if_sta *ifsta; + int res; - if (bss) { - char *buf; - buf = kmalloc(30, GFP_ATOMIC); - if (buf) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp)); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, " Last beacon: %dms ago", - jiffies_to_msecs(jiffies - bss->last_update)); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, &iwe, buf); - kfree(buf); - } - } + ifsta = &sdata->u.sta; - if (bss_mesh_cfg(bss)) { - char *buf; - u8 *cfg = bss_mesh_cfg(bss); - buf = kmalloc(50, GFP_ATOMIC); - if (buf) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "Mesh network (version %d)", cfg[0]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Path Selection Protocol ID: " - "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3], - cfg[4]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Path Selection Metric ID: " - "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7], - cfg[8]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Congestion Control Mode ID: " - "0x%02X%02X%02X%02X", cfg[9], cfg[10], - cfg[11], cfg[12]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Channel Precedence: " - "0x%02X%02X%02X%02X", cfg[13], cfg[14], - cfg[15], cfg[16]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - kfree(buf); + if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { + memcpy(ifsta->bssid, bssid, 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) { + printk(KERN_DEBUG "%s: Failed to config new BSSID to " + "the low-level driver\n", sdata->dev->name); + return res; } } - return current_ev; -} - + if (is_valid_ether_addr(bssid)) + ifsta->flags |= IEEE80211_STA_BSSID_SET; + else + ifsta->flags &= ~IEEE80211_STA_BSSID_SET; -int ieee80211_sta_scan_results(struct net_device *dev, - struct iw_request_info *info, - char *buf, size_t len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - char *current_ev = buf; - char *end_buf = buf + len; - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (buf + len - current_ev <= IW_EV_ADDR_LEN) { - spin_unlock_bh(&local->sta_bss_lock); - return -E2BIG; - } - current_ev = ieee80211_sta_scan_result(dev, info, bss, - current_ev, end_buf); - } - spin_unlock_bh(&local->sta_bss_lock); - return current_ev - buf; + return 0; } - -int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len) +int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta = &sdata->u.sta; kfree(ifsta->extra_ie); @@ -4341,92 +2511,60 @@ int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len) return 0; } - -struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev, - struct sk_buff *skb, u8 *bssid, - u8 *addr, u64 supp_rates) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - DECLARE_MAC_BUF(mac); - int band = local->hw.conf.channel->band; - - /* TODO: Could consider removing the least recently used entry and - * allow new one to be added. */ - if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: No room for a new IBSS STA " - "entry %s\n", dev->name, print_mac(mac, addr)); - } - return NULL; - } - - if (compare_ether_addr(bssid, sdata->u.sta.bssid)) - return NULL; - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n", - wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name); -#endif - - sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); - if (!sta) - return NULL; - - set_sta_flags(sta, WLAN_STA_AUTHORIZED); - - if (supp_rates) - sta->supp_rates[band] = supp_rates; - else - sta->supp_rates[band] = sdata->u.sta.supp_rates_bits[band]; - - rate_control_rate_init(sta, local); - - if (sta_info_insert(sta)) - return NULL; - - return sta; -} - - -int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason) +int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta = &sdata->u.sta; printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n", - dev->name, reason); + sdata->dev->name, reason); - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) + if (sdata->vif.type != NL80211_IFTYPE_STATION && + sdata->vif.type != NL80211_IFTYPE_ADHOC) return -EINVAL; - ieee80211_send_deauth(dev, ifsta, reason); - ieee80211_set_disassoc(dev, ifsta, 1); + ieee80211_set_disassoc(sdata, ifsta, true, true, reason); return 0; } - -int ieee80211_sta_disassociate(struct net_device *dev, u16 reason) +int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta = &sdata->u.sta; printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n", - dev->name, reason); + sdata->dev->name, reason); - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EINVAL; if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED)) return -1; - ieee80211_send_disassoc(dev, ifsta, reason); - ieee80211_set_disassoc(dev, ifsta, 0); + ieee80211_set_disassoc(sdata, ifsta, false, true, reason); return 0; } +/* scan finished notification */ +void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) +{ + struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_if_sta *ifsta; + + 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))) + ieee80211_sta_find_ibss(sdata, ifsta); + } + + /* Restart STA timers */ + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + ieee80211_restart_sta_timer(sdata); + rcu_read_unlock(); +} + +/* driver notification call */ void ieee80211_notify_mac(struct ieee80211_hw *hw, enum ieee80211_notification_types notif_type) { @@ -4437,10 +2575,10 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw, case IEEE80211_NOTIFY_RE_ASSOC: rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + if (sdata->vif.type != NL80211_IFTYPE_STATION) continue; - ieee80211_sta_req_auth(sdata->dev, &sdata->u.sta); + ieee80211_sta_req_auth(sdata, &sdata->u.sta); } rcu_read_unlock(); break; |