Re: [net] selftests: srv6: make srv6_end_dt46_l3vpn_test more robust

David Ahern
2023-04-27T21:54:36Z

On 4/27/23 3:49 AM, Andrea Mayer wrote:
> On some distributions, the rp_filter is automatically set (=1) by
> default on a netdev basis (also on VRFs).
> In an SRv6 End.DT46 behavior, decapsulated IPv4 packets are routed using
> the table associated with the VRF bound to that tunnel. During lookup
> operations, the rp_filter can lead to packet loss when activated on the
> VRF.
> Therefore, we chose to make this selftest more robust by explicitly
> disabling the rp_filter during tests (as it is automatically set by some
> Linux distributions).
>
> Fixes: 03a0b567a03d ("selftests: seg6: add selftest for SRv6 End.DT46 Behavior")
> Reported-by: Hangbin Liu <liuhangbin@gmail.com>
> Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
> Tested-by: Hangbin Liu <liuhangbin@gmail.com>
> ---
> .../testing/selftests/net/srv6_end_dt46_l3vpn_test.sh | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>

Reviewed-by: David Ahern <dsahern@kernel.org>