Commit 25e7f2de authored Jul 06, 2017 by Zheng Li Committed by David S. Miller Jul 06, 2017

sctp: set the value of flowi6_oif to sk_bound_dev_if to make sctp_v6_get_dst...

sctp: set the value of flowi6_oif to sk_bound_dev_if to make sctp_v6_get_dst to find the correct route entry.

if there are several same route entries with different outgoing net device,
application's socket specifies the oif through setsockopt with
SO_BINDTODEVICE, sctpv6 should choose the route entry whose outgoing net
device is the oif which was specified by socket, set the value of
flowi6_oif to sk->sk_bound_dev_if to make sctp_v6_get_dst to find the
correct route entry.

Signed-off-by: Zheng Li <james.z.li@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5a3b886c

net/sctp/ipv6.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -252,6 +252,8 @@ static void sctp_v6_get_dst(struct sctp_transport t, union sctp_addr saddr,
		fl6->flowi6_proto = IPPROTO_SCTP;
		if (ipv6_addr_type(&daddr->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL)
		fl6->flowi6_oif = daddr->v6.sin6_scope_id;
		else if (asoc)
		fl6->flowi6_oif = asoc->base.sk->sk_bound_dev_if;

		pr_debug("%s: dst=%pI6 ", __func__, &fl6->daddr);