On Wed, Nov 21, 2018 at 12:17:50PM +0100, Alin Nastac wrote:
> When ip6_route_me_harder is invoked, it resets outgoing interface of:
> - link-local scoped packets sent by neighbor discovery
> - multicast packets sent by MLD host
> - multicast packets send by MLD proxy daemon that sets outgoing
> interface through IPV6_PKTINFO ipi6_ifindex
>
> Link-local and multicast packets must keep their original oif after
> ip6_route_me_harder is called.
Please, resubmit including your Signed-off-by tag.
Thanks!
> ---
> net/ipv6/netfilter.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
> index 5ae8e1c..8b075f0 100644
> --- a/net/ipv6/netfilter.c
> +++ b/net/ipv6/netfilter.c
> @@ -24,7 +24,8 @@ int ip6_route_me_harder(struct net *net, struct sk_buff *skb)
> unsigned int hh_len;
> struct dst_entry *dst;
> struct flowi6 fl6 = {
> - .flowi6_oif = sk ? sk->sk_bound_dev_if : 0,
> + .flowi6_oif = sk && sk->sk_bound_dev_if ? sk->sk_bound_dev_if :
> + rt6_need_strict(&iph->daddr) ? skb_dst(skb)->dev->ifindex : 0,
> .flowi6_mark = skb->mark,
> .flowi6_uid = sock_net_uid(net, sk),
> .daddr = iph->daddr,
> --
> 2.7.4
>
