Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b331615722779b078822988843ddffd4eaec9f83
Commit: b331615722779b078822988843ddffd4eaec9f83
Parent: 3c3b00caf98e5fdaa0184026a68f0008a5bf393e
Author: John W. Linville <[EMAIL PROTECTED]>
AuthorDate: Tue Aug 28 17:01:55 2007 -0400
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:48:56 2007 -0700
[MAC80211]: filter locally-originated multicast frames
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 <[EMAIL PROTECTED]>
Signed-off-by: Johannes Berg <[EMAIL PROTECTED]>
Acked-by: Michael Wu <[EMAIL PROTECTED]>
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
net/mac80211/rx.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e2c6f5c..969be3a 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -988,9 +988,10 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
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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