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iwlwifi-2.6: enables RX TKIP decryption in HW

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This patch enables RX TKIP decryption in HW.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Emmanuel Grumbach 2008-03-20 15:06:43 +02:00 committed by John W. Linville
parent 2bc750899f
commit ab885f8c45
1 changed files with 51 additions and 0 deletions
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51
drivers/net/wireless/iwlwifi/iwl4965-base.c
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@ -7187,6 +7187,56 @@ out_unlock:
return rc;
}
static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
struct ieee80211_key_conf *keyconf, const u8 *addr,
u32 iv32, u16 *phase1key)
{
struct iwl_priv *priv = hw->priv;
u8 sta_id = IWL_INVALID_STATION;
unsigned long flags;
__le16 key_flags = 0;
int i;
DECLARE_MAC_BUF(mac);
IWL_DEBUG_MAC80211("enter\n");
sta_id = iwl4965_hw_find_station(priv, addr);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
print_mac(mac, addr));
return;
}
iwl4965_scan_cancel_timeout(priv, 100);
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_setting.bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.key.key_offset =
(sta_id % STA_KEY_MAX_NUM);/* FIXME */
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;
iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags);
IWL_DEBUG_MAC80211("leave\n");
}
static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
const u8 *local_addr, const u8 *addr,
struct ieee80211_key_conf *key)
@ -8128,6 +8178,7 @@ static struct ieee80211_ops iwl4965_hw_ops = {
.config_interface = iwl4965_mac_config_interface,
.configure_filter = iwl4965_configure_filter,
.set_key = iwl4965_mac_set_key,
.update_tkip_key = iwl4965_mac_update_tkip_key,
.get_stats = iwl4965_mac_get_stats,
.get_tx_stats = iwl4965_mac_get_tx_stats,
.conf_tx = iwl4965_mac_conf_tx,