linux-kernel - Re: [PATCH bpf] bpf: fix the check that forwarding is enabled in bpf_ipv6_fib

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Date:   Mon, 17 Jun 2019 13:17:56 +0200
From:   Toke Høiland-Jørgensen <toke@...hat.com>
To:     Anton Protopopov <a.s.protopopov@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Anton Protopopov <a.s.protopopov@...il.com>
Subject: Re: [PATCH bpf] bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup

Anton Protopopov <a.s.protopopov@...il.com> 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@...il.com>

Thanks!

Acked-by: Toke Høiland-Jørgensen <toke@...hat.com>