From: David Miller <davem@davemloft.net>
To: dsa@cumulusnetworks.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next v4 0/2] net: vrf: Fixup PKTINFO to return enslaved device index
Date: Wed, 11 May 2016 19:33:12 -0400 (EDT) [thread overview]
Message-ID: <20160511.193312.74692525355352113.davem@davemloft.net> (raw)
In-Reply-To: <1462904391-1253-1-git-send-email-dsa@cumulusnetworks.com>
From: David Ahern <dsa@cumulusnetworks.com>
Date: Tue, 10 May 2016 11:19:49 -0700
> Applications such as OSPF and BFD need the original ingress device not
> the VRF device; the latter can be derived from the former. To that end
> move the packet intercept from an rx handler that is invoked by
> __netif_receive_skb_core to the ipv4 and ipv6 receive processing.
>
> IPv6 already saves the skb_iif to the control buffer in ipv6_rcv. Since
> the skb->dev has not been switched the cb has the enslaved device. Make
> the same happen for IPv4 by adding the skb_iif to inet_skb_parm and set
> it in ipv4 code after clearing the skb control buffer similar to IPv6.
> From there the pktinfo can just pull it from cb with the PKTINFO_SKB_CB
> cast.
Series applied.
prev parent reply other threads:[~2016-05-11 23:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 18:19 [PATCH net-next v4 0/2] net: vrf: Fixup PKTINFO to return enslaved device index David Ahern
2016-05-10 18:19 ` [PATCH net-next v4 1/2] net: l3mdev: Add hook in ip and ipv6 David Ahern
2016-05-10 18:19 ` [PATCH net-next 2/2] net: original ingress device index in PKTINFO David Ahern
2016-05-11 23:33 ` David Miller [this message]
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