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mac80211: fix network header location when adding encryption headers

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Update the location of the network header when adding encryption
specific headers to a skb. This allows low-level drivers to use the
(now correct) location of the network header.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arik Nemtsov 2012-05-10 13:21:09 +03:00 committed by John W. Linville
parent ac55d2fe05
commit 7863157d83
2 changed files with 3 additions and 0 deletions
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1
net/mac80211/wep.c
View File

@ -111,6 +111,7 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
(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;
}

2
net/mac80211/wpa.c
View File

@ -203,6 +203,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
pos = skb_push(skb, TKIP_IV_LEN);
memmove(pos, pos + TKIP_IV_LEN, hdrlen);
skb_set_network_header(skb, skb_network_offset(skb) + TKIP_IV_LEN);
pos += hdrlen;
/* the HW only needs room for the IV, but not the actual IV */
@ -428,6 +429,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
pos = skb_push(skb, CCMP_HDR_LEN);
memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
skb_set_network_header(skb, skb_network_offset(skb) + CCMP_HDR_LEN);
/* the HW only needs room for the IV, but not the actual IV */
if (info->control.hw_key &&