From: John Linville <linville@xxxxxxxxxxxxx>
In STA mode, the AP will echo our traffic. This includes multicast
traffic.
Receiving these frames confuses some protocols and applications,
notably IPv6 Duplicate Address Detection.
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
---
net/mac80211/rx.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- wireless-dev.orig/net/mac80211/rx.c 2007-08-28 17:53:19.014622115 +0200
+++ wireless-dev/net/mac80211/rx.c 2007-08-28 17:53:21.864622115 +0200
@@ -1135,9 +1135,10 @@ ieee80211_rx_h_data(struct ieee80211_txr
memcpy(dst, hdr->addr1, ETH_ALEN);
memcpy(src, hdr->addr3, ETH_ALEN);
- if (sdata->type != IEEE80211_IF_TYPE_STA) {
+ if (sdata->type != IEEE80211_IF_TYPE_STA ||
+ (is_multicast_ether_addr(dst) &&
+ !compare_ether_addr(src, dev->dev_addr)))
return TXRX_DROP;
- }
break;
case 0:
/* DA SA BSSID */
--
-
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