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| author |   David S. Miller <davem@davemloft.net> | 2014-03-29 18:48:54 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-29 18:48:54 -0400 |
| commit | 64c27237a07129758e33f5f824ba5c33b7f57417 (patch) | |
| tree | 4c0c0a9b6d282d600f2226e1b3510096b9d789dd /net/ipv4/gre_demux.c | |
| parent | phy/at8031: enable at8031 to work on interrupt mode (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | wireguard-linux-64c27237a07129758e33f5f824ba5c33b7f57417.tar.xz wireguard-linux-64c27237a07129758e33f5f824ba5c33b7f57417.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/marvell/mvneta.c
The mvneta.c conflict is a case of overlapping changes,
a conversion to devm_ioremap_resource() vs. a conversion
to netdev_alloc_pcpu_stats.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/gre_demux.c')
| -rw-r--r-- | net/ipv4/gre_demux.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c index 1863422fb7d5..250be7421ab3 100644 --- a/net/ipv4/gre_demux.c +++ b/net/ipv4/gre_demux.c @@ -182,6 +182,14 @@ static int gre_cisco_rcv(struct sk_buff *skb) int i; bool csum_err = false; +#ifdef CONFIG_NET_IPGRE_BROADCAST + if (ipv4_is_multicast(ip_hdr(skb)->daddr)) { + /* Looped back packet, drop it! */ + if (rt_is_output_route(skb_rtable(skb))) + goto drop; + } +#endif + if (parse_gre_header(skb, &tpi, &csum_err) < 0) goto drop; |