https://github.com/torvalds/linux
Revision e3818541b49fb88650ba339d33cc53e4095da5b3 authored by David Ahern on 26 February 2019, 17:00:03 UTC, committed by David S. Miller on 26 February 2019, 21:23:17 UTC
IPv6 currently does not support nexthops outside of the AF_INET6 family.
Specifically, it does not handle RTA_VIA attribute. If it is passed
in a route add request, the actual route added only uses the device
which is clearly not what the user intended:

  $ ip -6 ro add 2001:db8:2::/64 via inet 172.16.1.1 dev eth0
  $ ip ro ls
  ...
  2001:db8:2::/64 dev eth0 metric 1024 pref medium

Catch this and fail the route add:
  $ ip -6 ro add 2001:db8:2::/64 via inet 172.16.1.1 dev eth0
  Error: IPv6 does not support RTA_VIA attribute.

Fixes: 03c0566542f4c ("mpls: Netlink commands to add, remove, and dump routes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent b6e9e5d
History
Tip revision: e3818541b49fb88650ba339d33cc53e4095da5b3 authored by David Ahern on 26 February 2019, 17:00:03 UTC
ipv6: Return error for RTA_VIA attribute
Tip revision: e381854
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