linux-kernel - Re: [PATCH v2 2/4] tcp: md5: Allow MD5SIG_FLAG

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Date:   Wed, 13 Oct 2021 21:09:42 -0600
From:   David Ahern <dsahern@...il.com>
To:     Leonard Crestez <cdleonard@...il.com>,
        David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Kuniyuki Iwashima <kuniyu@...zon.co.jp>,
        Yonghong Song <yhs@...com>,
        Alexander Duyck <alexanderduyck@...com>,
        Florian Westphal <fw@...len.de>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/4] tcp: md5: Allow MD5SIG_FLAG_IFINDEX with ifindex=0

On 10/13/21 12:50 AM, Leonard Crestez wrote:
> Multiple VRFs are generally meant to be "separate" but right now md5
> keys for the default VRF also affect connections inside VRFs if the IP
> addresses happen to overlap.
> 
> So far the combination of TCP_MD5SIG_IFINDEX with tcpm_ifindex == 0

TCP_MD5SIG_IFINDEX does not exist in net-next and it was not added by
patch 1 or this patch.