/******************************************************************************
*
- * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
* 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
*
*****************************************************************************/
#include <net/mac80211.h>
#include <linux/etherdevice.h>
-#include "iwl-eeprom.h"
-#include "iwl-4965.h"
+#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965.h"
-#include "iwl-sta.h"
+
+#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
+#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
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 == IEEE80211_IF_TYPE_IBSS) ||
- (priv->iw_mode == IEEE80211_IF_TYPE_AP))
+ if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) ||
+ (priv->iw_mode == NL80211_IFTYPE_AP))
start = IWL_STA_ID;
if (is_broadcast_ether_addr(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(priv, "can not find STA %pM total %d\n",
+ addr, priv->num_stations);
out:
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
EXPORT_SYMBOL(iwl_find_station);
+int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
+{
+ if (priv->iw_mode == NL80211_IFTYPE_STATION) {
+ return IWL_AP_ID;
+ } else {
+ u8 *da = ieee80211_get_DA(hdr);
+ return iwl_find_station(priv, da);
+ }
+}
+EXPORT_SYMBOL(iwl_get_ra_sta_id);
+
+static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
+ IWL_ERR(priv, "ACTIVATE a non DRIVER active station %d\n",
+ sta_id);
+
+ priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
+ IWL_DEBUG_ASSOC(priv, "Added STA to Ucode: %pM\n",
+ priv->stations[sta_id].sta.sta.addr);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+static void iwl_add_sta_callback(struct iwl_priv *priv,
+ struct iwl_device_cmd *cmd,
+ struct sk_buff *skb)
+{
+ struct iwl_rx_packet *res = NULL;
+ struct iwl_addsta_cmd *addsta =
+ (struct iwl_addsta_cmd *)cmd->cmd.payload;
+ u8 sta_id = addsta->sta.sta_id;
+
+ if (!skb) {
+ IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
+ return;
+ }
+
+ res = (struct iwl_rx_packet *)skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ return;
+ }
+
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ iwl_sta_ucode_activate(priv, sta_id);
+ /* fall through */
+ default:
+ IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
+ res->u.add_sta.status);
+ break;
+ }
+}
+
+int iwl_send_add_sta(struct iwl_priv *priv,
+ struct iwl_addsta_cmd *sta, u8 flags)
+{
+ struct iwl_rx_packet *res = NULL;
+ int ret = 0;
+ u8 data[sizeof(*sta)];
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_ADD_STA,
+ .flags = flags,
+ .data = data,
+ };
+
+ if (flags & CMD_ASYNC)
+ cmd.callback = iwl_add_sta_callback;
+ else
+ cmd.flags |= CMD_WANT_SKB;
+
+ cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
+ ret = iwl_send_cmd(priv, &cmd);
+
+ if (ret || (flags & CMD_ASYNC))
+ return ret;
+
+ res = (struct iwl_rx_packet *)cmd.reply_skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ ret = -EIO;
+ }
+
+ if (ret == 0) {
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ iwl_sta_ucode_activate(priv, sta->sta.sta_id);
+ IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
+ break;
+ default:
+ ret = -EIO;
+ IWL_WARN(priv, "REPLY_ADD_STA failed\n");
+ break;
+ }
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.reply_skb);
+
+ return ret;
+}
+EXPORT_SYMBOL(iwl_send_add_sta);
+
+static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
+ struct ieee80211_sta_ht_cap *sta_ht_inf)
+{
+ __le32 sta_flags;
+ u8 mimo_ps_mode;
+
+ if (!sta_ht_inf || !sta_ht_inf->ht_supported)
+ goto done;
+
+ mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
+
+ sta_flags = priv->stations[index].sta.station_flags;
+
+ sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
+
+ switch (mimo_ps_mode) {
+ case WLAN_HT_CAP_SM_PS_STATIC:
+ sta_flags |= STA_FLG_MIMO_DIS_MSK;
+ break;
+ case WLAN_HT_CAP_SM_PS_DYNAMIC:
+ sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
+ break;
+ case WLAN_HT_CAP_SM_PS_DISABLED:
+ break;
+ default:
+ IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
+ break;
+ }
+
+ sta_flags |= cpu_to_le32(
+ (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
+
+ sta_flags |= cpu_to_le32(
+ (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
+
+ if (iwl_is_fat_tx_allowed(priv, sta_ht_inf))
+ sta_flags |= STA_FLG_FAT_EN_MSK;
+ else
+ sta_flags &= ~STA_FLG_FAT_EN_MSK;
+
+ priv->stations[index].sta.station_flags = sta_flags;
+ done:
+ return;
+}
+
+/**
+ * iwl_add_station - Add station to tables in driver and device
+ */
+u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
+ struct ieee80211_sta_ht_cap *ht_info)
+{
+ struct iwl_station_entry *station;
+ unsigned long flags_spin;
+ int i;
+ int sta_id = IWL_INVALID_STATION;
+ u16 rate;
+
+ spin_lock_irqsave(&priv->sta_lock, flags_spin);
+ if (is_ap)
+ sta_id = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ sta_id = priv->hw_params.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
+ if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ sta_id = i;
+ break;
+ }
+
+ if (!priv->stations[i].used &&
+ sta_id == IWL_INVALID_STATION)
+ sta_id = i;
+ }
+
+ /* These two conditions have the same outcome, but keep them separate
+ since they have different meanings */
+ if (unlikely(sta_id == IWL_INVALID_STATION)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return sta_id;
+ }
+
+ if (priv->stations[sta_id].used &&
+ !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return sta_id;
+ }
+
+
+ station = &priv->stations[sta_id];
+ station->used = IWL_STA_DRIVER_ACTIVE;
+ IWL_DEBUG_ASSOC(priv, "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 */
+ memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
+ memcpy(station->sta.sta.addr, addr, ETH_ALEN);
+ station->sta.mode = 0;
+ station->sta.sta.sta_id = sta_id;
+ station->sta.station_flags = 0;
+
+ /* BCAST station and IBSS stations do not work in HT mode */
+ if (sta_id != priv->hw_params.bcast_sta_id &&
+ priv->iw_mode != NL80211_IFTYPE_ADHOC)
+ iwl_set_ht_add_station(priv, sta_id, ht_info);
+
+ /* 3945 only */
+ rate = (priv->band == IEEE80211_BAND_5GHZ) ?
+ IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP;
+ /* Turn on both antennas for the station... */
+ station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+
+ /* Add station to device's station table */
+ iwl_send_add_sta(priv, &station->sta, flags);
+ return sta_id;
+
+}
+EXPORT_SYMBOL(iwl_add_station);
+
+static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
+{
+ unsigned long flags;
+ u8 sta_id = iwl_find_station(priv, addr);
+
+ BUG_ON(sta_id == IWL_INVALID_STATION);
+
+ IWL_DEBUG_ASSOC(priv, "Removed STA from Ucode: %pM\n", addr);
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ /* Ucode must be active and driver must be non active */
+ if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE)
+ IWL_ERR(priv, "removed non active STA %d\n", sta_id);
+
+ priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
+
+ memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+static void iwl_remove_sta_callback(struct iwl_priv *priv,
+ struct iwl_device_cmd *cmd,
+ struct sk_buff *skb)
+{
+ struct iwl_rx_packet *res = NULL;
+ struct iwl_rem_sta_cmd *rm_sta =
+ (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
+ const char *addr = rm_sta->addr;
+
+ if (!skb) {
+ IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n");
+ return;
+ }
+
+ res = (struct iwl_rx_packet *)skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
+ res->hdr.flags);
+ return;
+ }
+
+ switch (res->u.rem_sta.status) {
+ case REM_STA_SUCCESS_MSK:
+ iwl_sta_ucode_deactivate(priv, addr);
+ break;
+ default:
+ IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
+ break;
+ }
+}
+
+static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
+ u8 flags)
+{
+ struct iwl_rx_packet *res = NULL;
+ int ret;
+
+ struct iwl_rem_sta_cmd rm_sta_cmd;
+
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_REMOVE_STA,
+ .len = sizeof(struct iwl_rem_sta_cmd),
+ .flags = flags,
+ .data = &rm_sta_cmd,
+ };
+
+ memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
+ rm_sta_cmd.num_sta = 1;
+ memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN);
+
+ if (flags & CMD_ASYNC)
+ cmd.callback = iwl_remove_sta_callback;
+ else
+ cmd.flags |= CMD_WANT_SKB;
+ ret = iwl_send_cmd(priv, &cmd);
+
+ if (ret || (flags & CMD_ASYNC))
+ return ret;
+
+ res = (struct iwl_rx_packet *)cmd.reply_skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
+ res->hdr.flags);
+ ret = -EIO;
+ }
+
+ if (!ret) {
+ switch (res->u.rem_sta.status) {
+ case REM_STA_SUCCESS_MSK:
+ iwl_sta_ucode_deactivate(priv, addr);
+ IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
+ break;
+ default:
+ ret = -EIO;
+ IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
+ break;
+ }
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.reply_skb);
+
+ return ret;
+}
+
+/**
+ * iwl_remove_station - Remove driver's knowledge of station.
+ */
+int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
+{
+ int sta_id = IWL_INVALID_STATION;
+ int i, ret = -EINVAL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ if (is_ap)
+ sta_id = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ sta_id = priv->hw_params.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
+ if (priv->stations[i].used &&
+ !compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ sta_id = i;
+ break;
+ }
+
+ if (unlikely(sta_id == IWL_INVALID_STATION))
+ goto out;
+
+ IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
+ sta_id, addr);
+
+ if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
+ IWL_ERR(priv, "Removing %pM but non DRIVER active\n",
+ addr);
+ goto out;
+ }
+
+ if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
+ IWL_ERR(priv, "Removing %pM but non UCODE active\n",
+ addr);
+ goto out;
+ }
+
+
+ priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
+
+ priv->num_stations--;
+
+ BUG_ON(priv->num_stations < 0);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ ret = iwl_send_remove_station(priv, addr, CMD_ASYNC);
+ return ret;
+out:
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return ret;
+}
+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;
+ int i;
+
+ 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_ERR(priv, "Couldn't clear the station table\n");
+
+ priv->num_stations = 0;
+ memset(priv->stations, 0, sizeof(priv->stations));
+
+ /* clean ucode key table bit map */
+ priv->ucode_key_table = 0;
+
+ /* keep track of static keys */
+ for (i = 0; i < WEP_KEYS_MAX ; i++) {
+ if (priv->wep_keys[i].key_size)
+ set_bit(i, &priv->ucode_key_table);
+ }
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+EXPORT_SYMBOL(iwl_clear_stations_table);
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;
}
+EXPORT_SYMBOL(iwl_get_free_ucode_key_index);
int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
{
struct iwl_host_cmd cmd = {
.id = REPLY_WEPKEY,
.data = wep_cmd,
- .meta.flags = CMD_ASYNC,
+ .flags = CMD_ASYNC,
};
memset(wep_cmd, 0, cmd_size +
else
return 0;
}
+EXPORT_SYMBOL(iwl_send_static_wepkey_cmd);
int iwl_remove_default_wep_key(struct iwl_priv *priv,
struct ieee80211_key_conf *keyconf)
unsigned long flags;
spin_lock_irqsave(&priv->sta_lock, flags);
+ IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
+ keyconf->keyidx);
if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table))
- IWL_ERROR("index %d not used in uCode key table.\n",
+ IWL_ERR(priv, "index %d not used in uCode key table.\n",
keyconf->keyidx);
priv->default_wep_key--;
memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0]));
+ if (iwl_is_rfkill(priv)) {
+ IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+ }
ret = iwl_send_static_wepkey_cmd(priv, 1);
+ IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
+ keyconf->keyidx, ret);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
+EXPORT_SYMBOL(iwl_remove_default_wep_key);
int iwl_set_default_wep_key(struct iwl_priv *priv,
struct ieee80211_key_conf *keyconf)
int ret;
unsigned long flags;
+ if (keyconf->keylen != WEP_KEY_LEN_128 &&
+ keyconf->keylen != WEP_KEY_LEN_64) {
+ IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen);
+ return -EINVAL;
+ }
+
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->hw_key_idx = keyconf->keyidx;
+ keyconf->hw_key_idx = HW_KEY_DEFAULT;
priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->default_wep_key++;
if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table))
- IWL_ERROR("index %d already used in uCode key table.\n",
+ IWL_ERR(priv, "index %d already used in uCode key table.\n",
keyconf->keyidx);
priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
keyconf->keylen);
ret = iwl_send_static_wepkey_cmd(priv, 0);
+ IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n",
+ keyconf->keylen, keyconf->keyidx, ret);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
+EXPORT_SYMBOL(iwl_set_default_wep_key);
static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
struct ieee80211_key_conf *keyconf,
int ret;
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->hw_key_idx = keyconf->keyidx;
key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
/* 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 a new key");
+
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 = iwl4965_send_add_station(priv,
- &priv->stations[sta_id].sta, CMD_ASYNC);
+ ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags);
{
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);
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->hw_key_idx = keyconf->keyidx;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].keyinfo.alg = keyconf->alg;
/* 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 a new key");
+
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 iwl4965_send_add_station(priv,
- &priv->stations[sta_id].sta, CMD_ASYNC);
+ return ret;
}
static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
{
unsigned long flags;
int ret = 0;
+ __le16 key_flags = 0;
+
+ 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;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
- keyconf->hw_key_idx = keyconf->keyidx;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].keyinfo.alg = keyconf->alg;
- priv->stations[sta_id].keyinfo.conf = keyconf;
priv->stations[sta_id].keyinfo.keylen = 16;
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
/* 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 a new key");
+
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+
+
/* This copy is acutally not needed: we get the key with each TX */
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
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;
+ int i;
+
+ sta_id = iwl_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_MAC80211(priv, "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;
+ }
+
+ spin_lock_irqsave(&priv->sta_lock, 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)
u16 key_flags;
u8 keyidx;
- priv->key_mapping_key = 0;
+ priv->key_mapping_key--;
spin_lock_irqsave(&priv->sta_lock, flags);
key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags);
keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
+ IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n",
+ keyconf->keyidx, sta_id);
+
if (keyconf->keyidx != keyidx) {
/* We need to remove a key with index different that the one
* in the uCode. This means that the key we need to remove has
return 0;
}
+ if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
+ IWL_WARN(priv, "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",
+ IWL_ERR(priv, "index %d not used in uCode key table.\n",
priv->stations[sta_id].sta.key.key_offset);
memset(&priv->stations[sta_id].keyinfo, 0,
- sizeof(struct iwl4965_hw_key));
+ sizeof(struct iwl_hw_key));
memset(&priv->stations[sta_id].sta.key, 0,
sizeof(struct iwl4965_keyinfo));
priv->stations[sta_id].sta.key.key_flags =
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
- ret = iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+ if (iwl_is_rfkill(priv)) {
+ IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n");
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+ }
+ ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
+EXPORT_SYMBOL(iwl_remove_dynamic_key);
int iwl_set_dynamic_key(struct iwl_priv *priv,
- struct ieee80211_key_conf *key, u8 sta_id)
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
{
int ret;
- priv->key_mapping_key = 1;
+ priv->key_mapping_key++;
+ keyconf->hw_key_idx = HW_KEY_DYNAMIC;
- switch (key->alg) {
+ switch (keyconf->alg) {
case ALG_CCMP:
- ret = iwl_set_ccmp_dynamic_key_info(priv, key, sta_id);
+ ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
break;
case ALG_TKIP:
- ret = iwl_set_tkip_dynamic_key_info(priv, key, sta_id);
+ ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
break;
case ALG_WEP:
- ret = iwl_set_wep_dynamic_key_info(priv, key, sta_id);
+ ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id);
break;
default:
- IWL_ERROR("Unknown alg: %s alg = %d\n", __func__, key->alg);
+ IWL_ERR(priv,
+ "Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
ret = -EINVAL;
}
+ IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
+ keyconf->alg, keyconf->keylen, keyconf->keyidx,
+ sta_id, ret);
+
return ret;
}
+EXPORT_SYMBOL(iwl_set_dynamic_key);
#ifdef CONFIG_IWLWIFI_DEBUG
static void iwl_dump_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq)
{
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(priv, "lq station id 0x%x\n", lq->sta_id);
+ IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n",
lq->general_params.single_stream_ant_msk,
lq->general_params.dual_stream_ant_msk);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
- IWL_DEBUG_RATE("lq index %d 0x%X\n",
+ IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n",
i, lq->rs_table[i].rate_n_flags);
}
#else
struct iwl_host_cmd cmd = {
.id = REPLY_TX_LINK_QUALITY_CMD,
.len = sizeof(struct iwl_link_quality_cmd),
- .meta.flags = flags,
+ .flags = flags,
.data = lq,
};
if ((lq->sta_id == 0xFF) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_IBSS))
+ (priv->iw_mode == NL80211_IFTYPE_ADHOC))
return -EINVAL;
if (lq->sta_id == 0xFF)
lq->sta_id = IWL_AP_ID;
- iwl_dump_lq_cmd(priv,lq);
+ iwl_dump_lq_cmd(priv, lq);
- if (iwl_is_associated(priv) && priv->assoc_station_added &&
- priv->lq_mngr.lq_ready)
+ if (iwl_is_associated(priv) && priv->assoc_station_added)
return iwl_send_cmd(priv, &cmd);
return 0;
}
EXPORT_SYMBOL(iwl_send_lq_cmd);
+/**
+ * iwl_sta_init_lq - Initialize a station's hardware rate table
+ *
+ * The uCode's station table contains a table of fallback rates
+ * for automatic fallback during transmission.
+ *
+ * NOTE: This sets up a default set of values. These will be replaced later
+ * if the driver's iwl-agn-rs rate scaling algorithm is used, instead of
+ * rc80211_simple.
+ *
+ * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
+ * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
+ * which requires station table entry to exist).
+ */
+static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap)
+{
+ int i, r;
+ struct iwl_link_quality_cmd link_cmd = {
+ .reserved1 = 0,
+ };
+ 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 */
+ if (is_ap)
+ r = IWL_RATE_54M_INDEX;
+ else if (priv->band == IEEE80211_BAND_5GHZ)
+ r = IWL_RATE_6M_INDEX;
+ else
+ r = IWL_RATE_1M_INDEX;
+
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+ rate_flags = 0;
+ if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+ 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 = iwl_get_prev_ieee_rate(r);
+ }
+
+ 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 = LINK_QUAL_AGG_DISABLE_START_DEF;
+ link_cmd.agg_params.agg_time_limit =
+ cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+
+ /* Update the rate scaling for control frame Tx to AP */
+ link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id;
+
+ iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
+ sizeof(link_cmd), &link_cmd, NULL);
+}
+
+/**
+ * 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 function
+ */
+int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool 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 */
+
+ /*
+ * 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(priv, addr, is_ap, CMD_SYNC, cur_ht_config);
+
+ /* Set up default rate scaling table in device's station table */
+ iwl_sta_init_lq(priv, addr, is_ap);
+
+ return sta_id;
+}
+EXPORT_SYMBOL(iwl_rxon_add_station);
+
+/**
+ * iwl_get_sta_id - Find station's index within station table
+ *
+ * If new IBSS station, create new entry in station table
+ */
+int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
+{
+ int sta_id;
+ __le16 fc = hdr->frame_control;
+
+ /* If this frame is broadcast or management, use broadcast station id */
+ if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
+ return priv->hw_params.bcast_sta_id;
+
+ switch (priv->iw_mode) {
+
+ /* If we are a client station in a BSS network, use the special
+ * AP station entry (that's the only station we communicate with) */
+ case NL80211_IFTYPE_STATION:
+ return IWL_AP_ID;
+
+ /* If we are an AP, then find the station, or use BCAST */
+ case NL80211_IFTYPE_AP:
+ sta_id = iwl_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+ return priv->hw_params.bcast_sta_id;
+
+ /* If this frame is going out to an IBSS network, find the station,
+ * or create a new station table entry */
+ case NL80211_IFTYPE_ADHOC:
+ sta_id = iwl_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ /* Create new station table entry */
+ sta_id = iwl_add_station(priv, hdr->addr1, false,
+ CMD_ASYNC, NULL);
+
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
+ "Defaulting to broadcast...\n",
+ hdr->addr1);
+ iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+ return priv->hw_params.bcast_sta_id;
+
+ default:
+ IWL_WARN(priv, "Unknown mode of operation: %d\n",
+ priv->iw_mode);
+ return priv->hw_params.bcast_sta_id;
+ }
+}
+EXPORT_SYMBOL(iwl_get_sta_id);
+
+/**
+ * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
+ */
+void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
+{
+ unsigned long flags;
+
+ /* Remove "disable" flag, to enable Tx for this TID */
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
+ priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
+ 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);
+}
+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) {
+ IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
+ 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;
+ }
+ }
+}
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff