From: Paolo Abeni <pab...@redhat.com>
Date: Fri, 29 Jan 2016 12:30:18 +0100
> Currently:
>
> ip addr add dev eth0 2001:0010::1/64
> ip addr add dev eth1 2001:0020::1/64
> ping6 -I eth0 2001:0020::2
>
> do not lead to the expected results, i.e. eth1 is used as the
> egress interface.
>
> This is due to two related issues in handling sticky pktinfo,
> used by ping6 to enforce the device binding:
>
> - ip6_dst_lookup_flow()/ip6_dst_lookup_tail() do not really enforce
> flowi6_oif match
> - ipv6 udp connect() just ignore flowi6_oif
>
> These patches address each issue individually.
>
> The kernel has never enforced the egress interface specified
> via the sticky pktinfo, except briefly between the commits
> 741a11d9e410 ("net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set")
> and
> d46a9d678e4c ("net: ipv6: Dont add RT6_LOOKUP_F_IFACE flag if saddr set"),
> but the ping6 tools was unaffected up to iputils-20100214,
> since before it used SO_BINDTODEVICE to enforce the egress
> interface.
Series applied, thanks.
