[MAC80211]: embed key conf in key, fix driver interface

This patch embeds the struct ieee80211_key_conf into struct ieee80211_key
and thus avoids allocations and having data present twice.

This required some more changes:
 1) The removal of the IEEE80211_KEY_DEFAULT_TX_KEY key flag.
    This flag isn't used by drivers nor should it be since
    we have a set_key_idx() callback. Maybe that callback needs
    to be extended to include the key conf, but only a driver that
    requires it will tell.
 2) The removal of the IEEE80211_KEY_DEFAULT_WEP_ONLY key flag.
    This flag is global, so it shouldn't be passed in the key
    conf structure. Pass it to the function instead.

Also, this patch removes the AID parameter to the set_key() callback
because it is currently unused and the hardware currently cannot know
about the AID anyway. I suspect this was used with some hardware that
actually selected the AID itself, but that functionality was removed.

Additionally, I've removed the ALG_NULL key algorithm since we have
ALG_NONE.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 9 deletions

diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 1ad3d75281cc..0b19e89fcf6a 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -67,7 +67,7 @@ void ieee80211_wep_get_iv(struct ieee80211_local *local,
 			  struct ieee80211_key *key, u8 *iv)
 {
 	local->wep_iv++;
-	if (ieee80211_wep_weak_iv(local->wep_iv, key->keylen))
+	if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen))
 		local->wep_iv += 0x0100;
 
 	if (!iv)
@@ -76,7 +76,7 @@ void ieee80211_wep_get_iv(struct ieee80211_local *local,
 	*iv++ = (local->wep_iv >> 16) & 0xff;
 	*iv++ = (local->wep_iv >> 8) & 0xff;
 	*iv++ = local->wep_iv & 0xff;
-	*iv++ = key->keyidx << 6;
+	*iv++ = key->conf.keyidx << 6;
 }
 
 
@@ -159,10 +159,10 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
 	u8 *rc4key, *iv;
 	size_t len;
 
-	if (!key || key->alg != ALG_WEP)
+	if (!key || key->conf.alg != ALG_WEP)
 		return -1;
 
-	klen = 3 + key->keylen;
+	klen = 3 + key->conf.keylen;
 	rc4key = kmalloc(klen, GFP_ATOMIC);
 	if (!rc4key)
 		return -1;
@@ -179,7 +179,7 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
 	memcpy(rc4key, iv, 3);
 
 	/* Copy rest of the WEP key (the secret part) */
-	memcpy(rc4key + 3, key->key, key->keylen);
+	memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
 
 	/* Add room for ICV */
 	skb_put(skb, WEP_ICV_LEN);
@@ -251,10 +251,10 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
 
 	keyidx = skb->data[hdrlen + 3] >> 6;
 
-	if (!key || keyidx != key->keyidx || key->alg != ALG_WEP)
+	if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP)
 		return -1;
 
-	klen = 3 + key->keylen;
+	klen = 3 + key->conf.keylen;
 
 	rc4key = kmalloc(klen, GFP_ATOMIC);
 	if (!rc4key)
@@ -264,7 +264,7 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
 	memcpy(rc4key, skb->data + hdrlen, 3);
 
 	/* Copy rest of the WEP key (the secret part) */
-	memcpy(rc4key + 3, key->key, key->keylen);
+	memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
 
 	if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
 				       skb->data + hdrlen + WEP_IV_LEN,
@@ -321,7 +321,7 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
 	ivpos = skb->data + hdrlen;
 	iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
 
-	if (ieee80211_wep_weak_iv(iv, key->keylen))
+	if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
 		return ivpos;
 
 	return NULL;