From 19e4e768064a87b073a4b4c138b55db70e0cfb9f Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 7 May 2019 20:44:59 -0700 Subject: [PATCH] ipv4: Fix raw socket lookup for local traffic 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 ' 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 Signed-off-by: David S. Miller --- net/ipv4/raw.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index c55a5432cf37..dc91c27bb788 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -173,6 +173,7 @@ static int icmp_filter(const struct sock *sk, const struct sk_buff *skb) static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) { int sdif = inet_sdif(skb); + int dif = inet_iif(skb); struct sock *sk; struct hlist_head *head; int delivered = 0; @@ -185,8 +186,7 @@ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) net = dev_net(skb->dev); sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol, - iph->saddr, iph->daddr, - skb->dev->ifindex, sdif); + iph->saddr, iph->daddr, dif, sdif); while (sk) { delivered = 1;