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

From: David Ahern <[email-masked]>
Date: Mon, 17 Jun 2019 08:14:23 -0600

On 6/17/19 5:17 AM, Toke Høiland-Jørgensen wrote:
> Anton Protopopov <[email-masked]> 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 <[email-masked]>
> 
> Thanks!
> 
> Acked-by: Toke Høiland-Jørgensen <[email-masked]>
> 

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

Reviewed-by: David Ahern <[email-masked]>