netdev - Re: [PATCH net-next] ipv6: Convert gateway validation to use fib6

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Message-ID: <7bc15499-6b44-67c5-e97f-b8d776be0a14@gmail.com>
Date:   Thu, 20 Jun 2019 18:52:56 -0600
From:   David Ahern <dsahern@...il.com>
To:     Wei Wang <weiwan@...gle.com>, David Ahern <dsahern@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Martin KaFai Lau <kafai@...com>
Subject: Re: [PATCH net-next] ipv6: Convert gateway validation to use
 fib6_info

On 6/20/19 5:43 PM, Wei Wang wrote:
> I am not very convinced that fib6_lookup() could be equivalent to
> rt6_lookup(). Specifically, rt6_lookup() calls rt6_device_match()
> while fib6_lookup() calls rt6_select() to match the oif. From a brief
> glance, it does seem to be similar, especially considering that saddr
> is NULL. So it probably is OK?

I believe so, but I'll walk the 2 paths again and do the compare based
on the limited flags and inputs for the gateway validation.