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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>
This commit is contained in:
Zheng Li 2017-07-06 15:00:09 +08:00 committed by David S. Miller
parent 5a3b886c3c
commit 25e7f2de96
1 changed files with 2 additions and 0 deletions
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2
net/sctp/ipv6.c
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@ -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);