Merge branch 'next' into for-linus

[karo-tx-linux.git] / net / mac80211 / wep.c

diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 7aa31bbfaa3bf7387df2756bf94877cc15fdda9a..c04d401dae9243517007a193acd3e7b1fb0478b0 100644 (file)
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -92,6 +92,7 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
                                int keylen, int keyidx)
 {
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+       struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
        unsigned int hdrlen;
        u8 *newhdr;
 
@@ -104,6 +105,13 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
        hdrlen = ieee80211_hdrlen(hdr->frame_control);
        newhdr = skb_push(skb, WEP_IV_LEN);
        memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
+
+       /* the HW only needs room for the IV, but not the actual IV */
+       if (info->control.hw_key &&
+           (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
+               return newhdr + hdrlen;
+
+       skb_set_network_header(skb, skb_network_offset(skb) + WEP_IV_LEN);
        ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);
        return newhdr + hdrlen;
 }
@@ -313,14 +321,15 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
 static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 {
        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+       struct ieee80211_key_conf *hw_key = info->control.hw_key;
 
-       if (!info->control.hw_key) {
+       if (!hw_key) {
                if (ieee80211_wep_encrypt(tx->local, skb, tx->key->conf.key,
                                          tx->key->conf.keylen,
                                          tx->key->conf.keyidx))
                        return -1;
-       } else if (info->control.hw_key->flags &
-                       IEEE80211_KEY_FLAG_GENERATE_IV) {
+       } else if ((hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+                  (hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) {
                if (!ieee80211_wep_add_iv(tx->local, skb,
                                          tx->key->conf.keylen,
                                          tx->key->conf.keyidx))