netdev - Re: [PATCH net-next v4 0/2] net: vrf: Fixup PKTINFO to return enslaved device index

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Wed, 11 May 2016 19:33:12 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	dsa@...ulusnetworks.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next v4 0/2] net: vrf: Fixup PKTINFO to return
 enslaved device index

From: David Ahern <dsa@...ulusnetworks.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.