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authorEric Dumazet <eric.dumazet@gmail.com>2011-10-06 10:28:31 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-18 23:22:07 -0400
commitbc416d9768aa9a2e46eb11354a9c58399dafeb01 (patch)
treea3ecf948353d11d199dfb64b0c4302c5b4aaccb6 /drivers/net/macvlan.c
parentf7ba35da583cf6aefba887a8dcf86acec4f3a350 (diff)
downloadop-kernel-dev-bc416d9768aa9a2e46eb11354a9c58399dafeb01.zip
op-kernel-dev-bc416d9768aa9a2e46eb11354a9c58399dafeb01.tar.gz
macvlan: handle fragmented multicast frames
Fragmented multicast frames are delivered to a single macvlan port, because ip defrag logic considers other samples are redundant. Implement a defrag step before trying to send the multicast frame. Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvlan.c')
-rw-r--r--drivers/net/macvlan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 24cf942..a3ce3d4 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -169,6 +169,9 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
port = macvlan_port_get_rcu(skb->dev);
if (is_multicast_ether_addr(eth->h_dest)) {
+ skb = ip_check_defrag(skb, IP_DEFRAG_MACVLAN);
+ if (!skb)
+ return RX_HANDLER_CONSUMED;
src = macvlan_hash_lookup(port, eth->h_source);
if (!src)
/* frame comes from an external address */
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