From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
This patch add support for TKIP encryption (TX) in HW.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-4965.h | 1 +
drivers/net/wireless/iwlwifi/iwl4965-base.c | 33 +++++++++++++++++++-------
2 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index bf17289..0842176 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -478,6 +478,7 @@ struct iwl4965_tid_data {
struct iwl4965_hw_key {
enum ieee80211_key_alg alg;
int keylen;
+ struct ieee80211_key_conf *conf;
u8 key[32];
};
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 9d4cd8e..2449e00 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1385,7 +1385,27 @@ static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv *priv,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
- return -EOPNOTSUPP;
+ unsigned long flags;
+ int ret = 0;
+
+ 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;
+
+ /* This copy is acutally not needed: we get the key with each TX */
+ memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
+
+ memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ return ret;
}
static int iwl4965_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
@@ -2333,15 +2353,10 @@ static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
break;
case ALG_TKIP:
-#if 0
cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
-
- if (last_frag)
- memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
- 8);
- else
- memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
-#endif
+ ieee80211_get_tkip_key(keyinfo->conf, skb_frag,
+ IEEE80211_TKIP_P2_KEY, cmd->cmd.tx.key);
+ IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
break;
case ALG_WEP:
--
1.5.3.4
--
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