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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2008-04-14 21:16:07 -0700
committerJohn W. Linville <linville@tuxdriver.com>2008-04-16 15:59:58 -0400
commit0211ddda9deb681a804572936cd49e466a1aa88b (patch)
treea9bb069458364ba40c8c7024352f9ac36a8bdfcf /drivers/net/wireless/iwlwifi
parent6974e36356524fa856435cb1be40aaffbac9601a (diff)
iwlwifi: add 1X HW WEP support
This patch adds support for HW encryption/decryption in 1X WEP. 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>
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.h1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-sta.c47
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-sta.h3
-rw-r--r--drivers/net/wireless/iwlwifi/iwl4965-base.c9
4 files changed, 58 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index 93df29e4689a..23ab5236504b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -461,6 +461,7 @@ struct iwl4965_tid_data {
struct iwl4965_hw_key {
enum ieee80211_key_alg alg;
int keylen;
+ u8 keyidx;
struct ieee80211_key_conf *conf;
u8 key[32];
};
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index a48e228e2ffd..cb964196ad2a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -35,6 +35,7 @@
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
+#include "iwl-4965.h"
int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
{
@@ -117,3 +118,49 @@ int iwl_set_default_wep_key(struct iwl_priv *priv,
return ret;
}
+int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
+ struct ieee80211_key_conf *keyconf,
+ u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+ 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);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (keyconf->keylen == WEP_KEY_LEN_128)
+ key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
+
+ 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].keyinfo.alg = keyconf->alg;
+ priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+ priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
+
+ memcpy(priv->stations[sta_id].keyinfo.key,
+ keyconf->key, keyconf->keylen);
+
+ memcpy(&priv->stations[sta_id].sta.key.key[3],
+ keyconf->key, keyconf->keylen);
+
+ priv->stations[sta_id].sta.key.key_offset = sta_id % 8; /* FIXME */
+ 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);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ return ret;
+}
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h
index 50e9f1470d8d..78e0254c93b5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.h
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.h
@@ -42,5 +42,8 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv,
struct ieee80211_key_conf *key);
int iwl_set_default_wep_key(struct iwl_priv *priv,
struct ieee80211_key_conf *key);
+int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
+ struct ieee80211_key_conf *keyconf,
+ u8 sta_id);
#endif /* __iwl_sta_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index dfd2b75492e6..37ab1c565ce1 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1214,7 +1214,7 @@ static int iwl4965_set_dynamic_key(struct iwl_priv *priv,
ret = iwl4965_set_tkip_dynamic_key_info(priv, key, sta_id);
break;
case ALG_WEP:
- ret = -EOPNOTSUPP;
+ ret = iwl_set_wep_dynamic_key_info(priv, key, sta_id);
break;
default:
IWL_ERROR("Unknown alg: %s alg = %d\n", __func__, key->alg);
@@ -2138,7 +2138,12 @@ static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
if (wepkey->key_size == WEP_KEY_LEN_128)
cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
} else {
- IWL_ERROR("No support for WEP key mappings key\n");
+ /* the WEP key was sent as dynamic */
+ keyidx = keyinfo->keyidx;
+ memcpy(&cmd->cmd.tx.key[3], keyinfo->key,
+ keyinfo->keylen);
+ if (keyinfo->keylen == WEP_KEY_LEN_128)
+ cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
}
cmd->cmd.tx.sec_ctl |= (TX_CMD_SEC_WEP |