diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sta.c | 283 |
1 files changed, 227 insertions, 56 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 61797f3f8d5..412f66bac1a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -22,7 +22,7 @@ * file called LICENSE. * * Contact Information: - * James P. Ketrenos <ipw2100-admin@linux.intel.com> + * Intel Linux Wireless <ilw@linux.intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ @@ -33,8 +33,6 @@ #include "iwl-dev.h" #include "iwl-core.h" #include "iwl-sta.h" -#include "iwl-helpers.h" - #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ @@ -45,7 +43,6 @@ u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr) int start = 0; int ret = IWL_INVALID_STATION; unsigned long flags; - DECLARE_MAC_BUF(mac); if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || (priv->iw_mode == NL80211_IFTYPE_AP)) @@ -63,8 +60,8 @@ u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr) goto out; } - IWL_DEBUG_ASSOC_LIMIT("can not find STA %s total %d\n", - print_mac(mac, addr), priv->num_stations); + IWL_DEBUG_ASSOC_LIMIT("can not find STA %pM total %d\n", + addr, priv->num_stations); out: spin_unlock_irqrestore(&priv->sta_lock, flags); @@ -86,7 +83,6 @@ EXPORT_SYMBOL(iwl_get_ra_sta_id); static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) { unsigned long flags; - DECLARE_MAC_BUF(mac); spin_lock_irqsave(&priv->sta_lock, flags); @@ -94,8 +90,8 @@ static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) IWL_ERROR("ACTIVATE a non DRIVER active station %d\n", sta_id); priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; - IWL_DEBUG_ASSOC("Added STA to Ucode: %s\n", - print_mac(mac, priv->stations[sta_id].sta.sta.addr)); + IWL_DEBUG_ASSOC("Added STA to Ucode: %pM\n", + priv->stations[sta_id].sta.sta.addr); spin_unlock_irqrestore(&priv->sta_lock, flags); } @@ -104,7 +100,9 @@ static int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_cmd *cmd, struct sk_buff *skb) { struct iwl_rx_packet *res = NULL; - u8 sta_id = cmd->cmd.addsta.sta.sta_id; + struct iwl_addsta_cmd *addsta = + (struct iwl_addsta_cmd *)cmd->cmd.payload; + u8 sta_id = addsta->sta.sta_id; if (!skb) { IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); @@ -132,7 +130,7 @@ static int iwl_add_sta_callback(struct iwl_priv *priv, return 1; } -int iwl_send_add_sta(struct iwl_priv *priv, +static int iwl_send_add_sta(struct iwl_priv *priv, struct iwl_addsta_cmd *sta, u8 flags) { struct iwl_rx_packet *res = NULL; @@ -180,10 +178,9 @@ int iwl_send_add_sta(struct iwl_priv *priv, return ret; } -EXPORT_SYMBOL(iwl_send_add_sta); static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, - struct ieee80211_ht_info *sta_ht_inf) + struct ieee80211_sta_ht_cap *sta_ht_inf) { __le32 sta_flags; u8 mimo_ps_mode; @@ -231,13 +228,12 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, * iwl_add_station_flags - Add station to tables in driver and device */ u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, - u8 flags, struct ieee80211_ht_info *ht_info) + u8 flags, struct ieee80211_sta_ht_cap *ht_info) { int i; int sta_id = IWL_INVALID_STATION; struct iwl_station_entry *station; unsigned long flags_spin; - DECLARE_MAC_BUF(mac); spin_lock_irqsave(&priv->sta_lock, flags_spin); if (is_ap) @@ -273,8 +269,8 @@ u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, station = &priv->stations[sta_id]; station->used = IWL_STA_DRIVER_ACTIVE; - IWL_DEBUG_ASSOC("Add STA to driver ID %d: %s\n", - sta_id, print_mac(mac, addr)); + IWL_DEBUG_ASSOC("Add STA to driver ID %d: %pM\n", + sta_id, addr); priv->num_stations++; /* Set up the REPLY_ADD_STA command to send to device */ @@ -301,14 +297,11 @@ EXPORT_SYMBOL(iwl_add_station_flags); static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr) { unsigned long flags; - DECLARE_MAC_BUF(mac); - u8 sta_id = iwl_find_station(priv, addr); BUG_ON(sta_id == IWL_INVALID_STATION); - IWL_DEBUG_ASSOC("Removed STA from Ucode: %s\n", - print_mac(mac, addr)); + IWL_DEBUG_ASSOC("Removed STA from Ucode: %pM\n", addr); spin_lock_irqsave(&priv->sta_lock, flags); @@ -326,7 +319,9 @@ static int iwl_remove_sta_callback(struct iwl_priv *priv, struct iwl_cmd *cmd, struct sk_buff *skb) { struct iwl_rx_packet *res = NULL; - const char *addr = cmd->cmd.rm_sta.addr; + struct iwl_rem_sta_cmd *rm_sta = + (struct iwl_rem_sta_cmd *)cmd->cmd.payload; + const char *addr = rm_sta->addr; if (!skb) { IWL_ERROR("Error: Response NULL in REPLY_REMOVE_STA.\n"); @@ -415,7 +410,6 @@ int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) int sta_id = IWL_INVALID_STATION; int i, ret = -EINVAL; unsigned long flags; - DECLARE_MAC_BUF(mac); spin_lock_irqsave(&priv->sta_lock, flags); @@ -435,18 +429,18 @@ int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) if (unlikely(sta_id == IWL_INVALID_STATION)) goto out; - IWL_DEBUG_ASSOC("Removing STA from driver:%d %s\n", - sta_id, print_mac(mac, addr)); + IWL_DEBUG_ASSOC("Removing STA from driver:%d %pM\n", + sta_id, addr); if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { - IWL_ERROR("Removing %s but non DRIVER active\n", - print_mac(mac, addr)); + IWL_ERROR("Removing %pM but non DRIVER active\n", + addr); goto out; } if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { - IWL_ERROR("Removing %s but non UCODE active\n", - print_mac(mac, addr)); + IWL_ERROR("Removing %pM but non UCODE active\n", + addr); goto out; } @@ -467,6 +461,29 @@ out: } EXPORT_SYMBOL(iwl_remove_station); +/** + * iwl_clear_stations_table - Clear the driver's station table + * + * NOTE: This does not clear or otherwise alter the device's station table. + */ +void iwl_clear_stations_table(struct iwl_priv *priv) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->sta_lock, flags); + + if (iwl_is_alive(priv) && + !test_bit(STATUS_EXIT_PENDING, &priv->status) && + iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL)) + IWL_ERROR("Couldn't clear the station table\n"); + + priv->num_stations = 0; + memset(priv->stations, 0, sizeof(priv->stations)); + + spin_unlock_irqrestore(&priv->sta_lock, flags); +} +EXPORT_SYMBOL(iwl_clear_stations_table); + static int iwl_get_free_ucode_key_index(struct iwl_priv *priv) { int i; @@ -475,7 +492,7 @@ static int iwl_get_free_ucode_key_index(struct iwl_priv *priv) if (!test_and_set_bit(i, &priv->ucode_key_table)) return i; - return -1; + return WEP_INVALID_OFFSET; } int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) @@ -620,6 +637,9 @@ static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, /* else, we are overriding an existing key => no need to allocated room * in uCode. */ + WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for new kew"); + priv->stations[sta_id].sta.key.key_flags = key_flags; priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; @@ -637,6 +657,7 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, { unsigned long flags; __le16 key_flags = 0; + int ret; key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); @@ -664,14 +685,18 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, /* else, we are overriding an existing key => no need to allocated room * in uCode. */ + WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for new kew"); + priv->stations[sta_id].sta.key.key_flags = key_flags; priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); + spin_unlock_irqrestore(&priv->sta_lock, flags); - IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); - return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); + return ret; } static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, @@ -696,6 +721,9 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, /* else, we are overriding an existing key => no need to allocated room * in uCode. */ + WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for new kew"); + /* This copy is acutally not needed: we get the key with each TX */ memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); @@ -706,6 +734,55 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, return ret; } +void iwl_update_tkip_key(struct iwl_priv *priv, + struct ieee80211_key_conf *keyconf, + const u8 *addr, u32 iv32, u16 *phase1key) +{ + u8 sta_id = IWL_INVALID_STATION; + unsigned long flags; + __le16 key_flags = 0; + int i; + DECLARE_MAC_BUF(mac); + + sta_id = iwl_find_station(priv, addr); + if (sta_id == IWL_INVALID_STATION) { + IWL_DEBUG_MAC80211("leave - %pM not in station map.\n", + addr); + return; + } + + if (iwl_scan_cancel(priv)) { + /* cancel scan failed, just live w/ bad key and rely + briefly on SW decryption */ + return; + } + + key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); + key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + key_flags &= ~STA_KEY_FLG_INVALID; + + if (sta_id == priv->hw_params.bcast_sta_id) + key_flags |= STA_KEY_MULTICAST_MSK; + + spin_lock_irqsave(&priv->sta_lock, flags); + + priv->stations[sta_id].sta.key.key_flags = key_flags; + priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; + + for (i = 0; i < 5; i++) + priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = + cpu_to_le16(phase1key[i]); + + priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); + + spin_unlock_irqrestore(&priv->sta_lock, flags); + +} +EXPORT_SYMBOL(iwl_update_tkip_key); + int iwl_remove_dynamic_key(struct iwl_priv *priv, struct ieee80211_key_conf *keyconf, u8 sta_id) @@ -734,6 +811,13 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv, return 0; } + if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { + IWL_WARNING("Removing wrong key %d 0x%x\n", + keyconf->keyidx, key_flags); + spin_unlock_irqrestore(&priv->sta_lock, flags); + return 0; + } + if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, &priv->ucode_key_table)) IWL_ERROR("index %d not used in uCode key table.\n", @@ -791,7 +875,7 @@ static void iwl_dump_lq_cmd(struct iwl_priv *priv, { int i; IWL_DEBUG_RATE("lq station id 0x%x\n", lq->sta_id); - IWL_DEBUG_RATE("lq dta 0x%X 0x%X\n", + IWL_DEBUG_RATE("lq ant 0x%X 0x%X\n", lq->general_params.single_stream_ant_msk, lq->general_params.dual_stream_ant_msk); @@ -852,7 +936,7 @@ static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap) struct iwl_link_quality_cmd link_cmd = { .reserved1 = 0, }; - u16 rate_flags; + u32 rate_flags; /* Set up the rate scaling to start at selected rate, fall back * all the way down to 1M in IEEE order, and then spin on 1M */ @@ -868,15 +952,16 @@ static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap) if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) rate_flags |= RATE_MCS_CCK_MSK; - /* Use Tx antenna B only */ - rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/ + rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << + RATE_MCS_ANT_POS; link_cmd.rs_table[i].rate_n_flags = iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); - r = iwl4965_get_prev_ieee_rate(r); + r = iwl_get_prev_ieee_rate(r); } - link_cmd.general_params.single_stream_ant_msk = 2; + link_cmd.general_params.single_stream_ant_msk = + first_antenna(priv->hw_params.valid_tx_ant); link_cmd.general_params.dual_stream_ant_msk = 3; link_cmd.agg_params.agg_dis_start_th = 3; link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000); @@ -892,24 +977,35 @@ static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap) * iwl_rxon_add_station - add station into station table. * * there is only one AP station with id= IWL_AP_ID - * NOTE: mutex must be held before calling this fnction + * NOTE: mutex must be held before calling this function */ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap) { + struct ieee80211_sta *sta; + struct ieee80211_sta_ht_cap ht_config; + struct ieee80211_sta_ht_cap *cur_ht_config = NULL; u8 sta_id; /* Add station to device's station table */ - struct ieee80211_conf *conf = &priv->hw->conf; - struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf; - - if ((is_ap) && - (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) && - (priv->iw_mode == NL80211_IFTYPE_STATION)) - sta_id = iwl_add_station_flags(priv, addr, is_ap, - 0, cur_ht_config); - else - sta_id = iwl_add_station_flags(priv, addr, is_ap, - 0, NULL); + + /* + * XXX: This check is definitely not correct, if we're an AP + * it'll always be false which is not what we want, but + * it doesn't look like iwlagn is prepared to be an HT + * AP anyway. + */ + if (priv->current_ht_config.is_ht) { + rcu_read_lock(); + sta = ieee80211_find_sta(priv->hw, addr); + if (sta) { + memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config)); + cur_ht_config = &ht_config; + } + rcu_read_unlock(); + } + + sta_id = iwl_add_station_flags(priv, addr, is_ap, + 0, cur_ht_config); /* Set up default rate scaling table in device's station table */ iwl_sta_init_lq(priv, addr, is_ap); @@ -927,7 +1023,6 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) { int sta_id; u16 fc = le16_to_cpu(hdr->frame_control); - DECLARE_MAC_BUF(mac); /* If this frame is broadcast or management, use broadcast station id */ if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || @@ -962,9 +1057,9 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) if (sta_id != IWL_INVALID_STATION) return sta_id; - IWL_DEBUG_DROP("Station %s not in station map. " + IWL_DEBUG_DROP("Station %pM not in station map. " "Defaulting to broadcast...\n", - print_mac(mac, hdr->addr1)); + hdr->addr1); iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); return priv->hw_params.bcast_sta_id; @@ -981,9 +1076,9 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) EXPORT_SYMBOL(iwl_get_sta_id); /** - * iwl_sta_modify_enable_tid_tx - Enable Tx for this TID in station table + * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table */ -void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid) +void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) { unsigned long flags; @@ -996,5 +1091,81 @@ void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid) iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); } -EXPORT_SYMBOL(iwl_sta_modify_enable_tid_tx); +EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid); + +int iwl_sta_rx_agg_start(struct iwl_priv *priv, + const u8 *addr, int tid, u16 ssn) +{ + unsigned long flags; + int sta_id; + + sta_id = iwl_find_station(priv, addr); + if (sta_id == IWL_INVALID_STATION) + return -ENXIO; + + spin_lock_irqsave(&priv->sta_lock, flags); + priv->stations[sta_id].sta.station_flags_msk = 0; + priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; + priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; + priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); + priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, + CMD_ASYNC); +} +EXPORT_SYMBOL(iwl_sta_rx_agg_start); + +int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid) +{ + unsigned long flags; + int sta_id; + + sta_id = iwl_find_station(priv, addr); + if (sta_id == IWL_INVALID_STATION) + return -ENXIO; + + spin_lock_irqsave(&priv->sta_lock, flags); + priv->stations[sta_id].sta.station_flags_msk = 0; + priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; + priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; + priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, + CMD_ASYNC); +} +EXPORT_SYMBOL(iwl_sta_rx_agg_stop); + +static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->sta_lock, flags); + priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; + priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; + priv->stations[sta_id].sta.sta.modify_mask = 0; + priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); +} + +void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr) +{ + /* FIXME: need locking over ps_status ??? */ + u8 sta_id = iwl_find_station(priv, addr); + + if (sta_id != IWL_INVALID_STATION) { + u8 sta_awake = priv->stations[sta_id]. + ps_status == STA_PS_STATUS_WAKE; + + if (sta_awake && ps_bit) + priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP; + else if (!sta_awake && !ps_bit) { + iwl_sta_modify_ps_wake(priv, sta_id); + priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE; + } + } +} |