netdev - Re: [PATCH net] vrf: reset rt_iif for recirculated mcast out pkts

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Message-Id: <20190625.133123.667513822232767903.davem@davemloft.net>
Date:   Tue, 25 Jun 2019 13:31:23 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     ssuryaextr@...il.com
Cc:     netdev@...r.kernel.org, dsahern@...il.com
Subject: Re: [PATCH net] vrf: reset rt_iif for recirculated mcast out pkts

From: Stephen Suryaputra <ssuryaextr@...il.com>
Date: Tue, 25 Jun 2019 06:33:59 -0400

> Multicast egress packets has skb_rtable(skb)->rt_iif set to the oif.
> Depending on the socket, these packets might be recirculated back as
> input and raw sockets that are opened for them are bound to the VRF. But
> since skb_rtable(skb) is set and its rt_iif is non-zero, inet_iif()
> function returns rt_iif instead of skb_iif (the VRF netdev). Hence, the
> socket lookup fails.
> 
> Signed-off-by: Stephen Suryaputra <ssuryaextr@...il.com>

David A., please review.

Thank you.