Commit 7ee66fcb authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller

[LLC]: multicast receive device match

Fix from Aji_Srinivas@emc.com, STP packets are incorrectly received on
all LLC datagram sockets, whichever interface they are bound to.  The
llc_sap datagram receive logic sends packets with a unicast
destination MAC to one socket bound to that SAP and MAC, and multicast
packets to all sockets bound to that SAP. STP packets are multicast,
and we do need to know on which interface they were received.
Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d49c73c7
...@@ -330,6 +330,9 @@ static void llc_sap_mcast(struct llc_sap *sap, ...@@ -330,6 +330,9 @@ static void llc_sap_mcast(struct llc_sap *sap,
if (llc->laddr.lsap != laddr->lsap) if (llc->laddr.lsap != laddr->lsap)
continue; continue;
if (llc->dev != skb->dev)
continue;
skb1 = skb_clone(skb, GFP_ATOMIC); skb1 = skb_clone(skb, GFP_ATOMIC);
if (!skb1) if (!skb1)
break; break;
......
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