mac80211: use cipher suite selectors

Currently, mac80211 translates the cfg80211
cipher suite selectors into ALG_* values.
That isn't all too useful, and some drivers
benefit from the distinction between WEP40
and WEP104 as well. Therefore, convert it
all to use the cipher suite selectors.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 32 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 19c6146..9a35d9e 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -116,7 +116,6 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta = NULL;
-	enum ieee80211_key_alg alg;
 	struct ieee80211_key *key;
 	int err;
 
@@ -125,31 +124,20 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
+	/* reject WEP and TKIP keys if WEP failed to initialize */
 	switch (params->cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
-	case WLAN_CIPHER_SUITE_WEP104:
-		alg = ALG_WEP;
-		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		alg = ALG_TKIP;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-		alg = ALG_CCMP;
-		break;
-	case WLAN_CIPHER_SUITE_AES_CMAC:
-		alg = ALG_AES_CMAC;
+	case WLAN_CIPHER_SUITE_WEP104:
+		if (IS_ERR(sdata->local->wep_tx_tfm))
+			return -EINVAL;
 		break;
 	default:
-		return -EINVAL;
+		break;
 	}
 
-	/* reject WEP and TKIP keys if WEP failed to initialize */
-	if ((alg == ALG_WEP || alg == ALG_TKIP) &&
-	    IS_ERR(sdata->local->wep_tx_tfm))
-		return -EINVAL;
-
-	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
-				  params->seq_len, params->seq);
+	key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
+				  params->key, params->seq_len, params->seq);
 	if (IS_ERR(key))
 		return PTR_ERR(key);
 
@@ -247,10 +235,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 
 	memset(&params, 0, sizeof(params));
 
-	switch (key->conf.alg) {
-	case ALG_TKIP:
-		params.cipher = WLAN_CIPHER_SUITE_TKIP;
+	params.cipher = key->conf.cipher;
 
+	switch (key->conf.cipher) {
+	case WLAN_CIPHER_SUITE_TKIP:
 		iv32 = key->u.tkip.tx.iv32;
 		iv16 = key->u.tkip.tx.iv16;
 
@@ -268,8 +256,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 		params.seq = seq;
 		params.seq_len = 6;
 		break;
-	case ALG_CCMP:
-		params.cipher = WLAN_CIPHER_SUITE_CCMP;
+	case WLAN_CIPHER_SUITE_CCMP:
 		seq[0] = key->u.ccmp.tx_pn[5];
 		seq[1] = key->u.ccmp.tx_pn[4];
 		seq[2] = key->u.ccmp.tx_pn[3];
@@ -279,14 +266,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 		params.seq = seq;
 		params.seq_len = 6;
 		break;
-	case ALG_WEP:
-		if (key->conf.keylen == 5)
-			params.cipher = WLAN_CIPHER_SUITE_WEP40;
-		else
-			params.cipher = WLAN_CIPHER_SUITE_WEP104;
-		break;
-	case ALG_AES_CMAC:
-		params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
 		seq[0] = key->u.aes_cmac.tx_pn[5];
 		seq[1] = key->u.aes_cmac.tx_pn[4];
 		seq[2] = key->u.aes_cmac.tx_pn[3];