diff options
| author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-07-15 18:44:10 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-08-22 16:29:53 -0400 |
| commit | d298487260d01934a8df3a4a2a09513d84a8e69b (patch) | |
| tree | c9b93d045c20eded25369790aae04b9943753b95 | |
| parent | c44d040e186e1af9d947f7bad886b7c1d35a22f6 (diff) | |
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>
| -rw-r--r-- | net/mac80211/wep.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 5c2bf0a3d4d..639998775b4 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; |