Re: [PATCH bpf] bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup

From: David Ahern
Date: Mon Jun 17 2019 - 10:19:26 EST

On 6/17/19 5:17 AM, Toke HÃiland-JÃrgensen wrote:
> Anton Protopopov <a.s.protopopov@xxxxxxxxx> writes:
>> The bpf_ipv6_fib_lookup function should return BPF_FIB_LKUP_RET_FWD_DISABLED
>> when forwarding is disabled for the input device. However instead of checking
>> if forwarding is enabled on the input device, it checked the global
>> net->ipv6.devconf_all->forwarding flag. Change it to behave as expected.
>> Signed-off-by: Anton Protopopov <a.s.protopopov@xxxxxxxxx>
> Thanks!
> Acked-by: Toke HÃiland-JÃrgensen <toke@xxxxxxxxxx>

Fixes: 87f5fc7e48dd ("bpf: Provide helper to do forwarding lookups in
kernel FIB table")

Reviewed-by: David Ahern <dsahern@xxxxxxxxx>