netdev - Re: [net PATCH] ip_vti/ip6_vti: Clear skb->mark when resetting skb->dev in receive path

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

Date:	Mon, 18 May 2015 16:31:21 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Steffen Klassert <steffen.klassert@...unet.com>
Cc:	David Miller <davem@...emloft.net>, alexander.duyck@...il.com,
	alexander.h.duyck@...hat.com, netdev@...r.kernel.org, tgraf@...g.ch
Subject: Re: [net PATCH] ip_vti/ip6_vti: Clear skb->mark when resetting
 skb->dev in receive path

On Mon, May 18, 2015 at 09:04:27AM +0200, Steffen Klassert wrote:
>
> The policy and state mark must match the tunnels i_key/o_key
> on lookup. It is not required to set skb->mark, but we have
> to make sure to use the tunnels gre keys as the mark when we
> do a policy or state lookup.

So is it possible to restore the original mark after the lookups?
At least that way it is still possible to use the mark before and
after the encapsulation.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html