Drop packets for which the firmware was unable to decrypt it,
as we won't be able to decrypt them with the key, too.
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Michael Buesch <mb@xxxxxxxxx>
Index: wireless-dev/drivers/net/wireless/b43/xmit.c
===================================================================
--- wireless-dev.orig/drivers/net/wireless/b43/xmit.c 2007-08-31 17:40:05.000000000 +0200
+++ wireless-dev/drivers/net/wireless/b43/xmit.c 2007-08-31 18:33:38.000000000 +0200
@@ -465,6 +465,12 @@ void b43_rx(struct b43_wldev *dev, struc
if (macstat & B43_RX_MAC_FCSERR)
dev->wl->ieee_stats.dot11FCSErrorCount++;
+ if (macstat & B43_RX_MAC_DECERR) {
+ /* Decryption with the given key failed.
+ * Drop the packet. We also won't be able to decrypt it with
+ * the key in software. */
+ goto drop;
+ }
/* Skip PLCP and padding */
padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0;
@@ -483,7 +489,7 @@ void b43_rx(struct b43_wldev *dev, struc
fctl = le16_to_cpu(wlhdr->frame_control);
skb_trim(skb, skb->len - FCS_LEN);
- if ((macstat & B43_RX_MAC_DEC) && !(macstat & B43_RX_MAC_DECERR)) {
+ if (macstat & B43_RX_MAC_DEC) {
unsigned int keyidx;
int wlhdr_len;
int iv_len;
@@ -573,7 +579,7 @@ void b43_rx(struct b43_wldev *dev, struc
ieee80211_rx_irqsafe(dev->wl->hw, skb, &status);
return;
- drop:
+drop:
b43dbg(dev->wl, "RX: Packet dropped\n");
dev_kfree_skb_any(skb);
}
-
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
