From 2bc750899f2b1da010625d064ad46dc3a8e9a372 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Wed, 19 Mar 2008 16:41:45 -0700 Subject: [PATCH] iwlwifi-2.6: enables HW TKIP encryption This patch add support for TKIP encryption (TX) in HW. Signed-off-by: Emmanuel Grumbach Signed-off-by: Tomas Winkler Signed-off-by: John W. Linville --- 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 7baed4db2f3f..1d7e8f9cf5ee 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965.h @@ -481,6 +481,7 @@ 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 8de301d1da8e..ae8fc8cb4d18 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -1393,7 +1393,27 @@ 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) @@ -2341,15 +2361,10 @@ 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: -- 2.30.2