From: David Ahern dsahern@gmail.com
[ Upstream commit 19e4e768064a87b073a4b4c138b55db70e0cfb9f ]
inet_iif should be used for the raw socket lookup. inet_iif considers rt_iif which handles the case of local traffic.
As it stands, ping to a local address with the '-I <dev>' option fails ever since ping was changed to use SO_BINDTODEVICE instead of cmsg + IP_PKTINFO.
IPv6 works fine.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: David Ahern dsahern@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv4/raw.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -158,6 +158,7 @@ static int icmp_filter(const struct sock */ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) { + int dif = inet_iif(skb); struct sock *sk; struct hlist_head *head; int delivered = 0; @@ -170,8 +171,7 @@ static int raw_v4_input(struct sk_buff *
net = dev_net(skb->dev); sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol, - iph->saddr, iph->daddr, - skb->dev->ifindex); + iph->saddr, iph->daddr, dif);
while (sk) { delivered = 1;