diff options
| author | David Spinadel <david.spinadel@intel.com> | 2016-11-21 16:58:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 09:38:49 +0100 |
| commit | 234c8e60437d3733cdcae996a62064757f3f35ac (patch) | |
| tree | bb6980fbd8840b7a80238a9b59d3a293a0cfb4e9 /net/mac80211/wep.c | |
| parent | b58aa24edb621469040b0a8a47f25d91f5ee2c58 (diff) | |
mac80211: Add RX flag to indicate ICV stripped
commit cef0acd4d7d4811d2d19cd0195031bf0dfe41249 upstream.
Add a flag that indicates that the WEP ICV was stripped from an
RX packet, allowing the device to not transfer that if it's
already checked.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211/wep.c')
| -rw-r--r-- | net/mac80211/wep.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index efa3f48f1ec5..73e8f347802e 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -293,7 +293,8 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); /* remove ICV */ - if (pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN)) + if (!(status->flag & RX_FLAG_ICV_STRIPPED) && + pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN)) return RX_DROP_UNUSABLE; } |