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authorHarvey Harrison <harvey.harrison@gmail.com>2008-07-15 18:44:10 -0700
committerJohn W. Linville <linville@tuxdriver.com>2008-08-22 16:29:53 -0400
commitd298487260d01934a8df3a4a2a09513d84a8e69b (patch)
treec9b93d045c20eded25369790aae04b9943753b95 /net/mac80211/wep.c
parentc44d040e186e1af9d947f7bad886b7c1d35a22f6 (diff)
downloadlinux-stericsson-d298487260d01934a8df3a4a2a09513d84a8e69b.tar.gz
mac80211: wep.c replace magic numbers in IV/ICV removal
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/wep.c')
-rw-r--r--net/mac80211/wep.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 5c2bf0a3d4db..639998775b48 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -228,11 +228,10 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
return -1;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
- if (skb->len < 8 + hdrlen)
+ if (skb->len < hdrlen + WEP_IV_LEN + WEP_ICV_LEN)
return -1;
- len = skb->len - hdrlen - 8;
+ len = skb->len - hdrlen - WEP_IV_LEN - WEP_ICV_LEN;
keyidx = skb->data[hdrlen + 3] >> 6;
@@ -303,7 +302,7 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
} else if (!(rx->status->flag & RX_FLAG_IV_STRIPPED)) {
ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
/* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
+ skb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN);
}
return RX_CONTINUE;