linux-kernel - Re: netfilter: marking IPv6 packets sends them to the wrong interface

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]

Message-ID: <20110124143518.GA2616@darkside.kls.lan>
Date:	Mon, 24 Jan 2011 15:35:18 +0100
From:	"Mario 'BitKoenig' Holbe" <Mario.Holbe@...Ilmenau.DE>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	netfilter-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: netfilter: marking IPv6 packets sends them to the wrong
 interface

On Mon, Jan 24, 2011 at 02:46:57PM +0100, Patrick McHardy wrote:
> On 23.01.2011 13:21, Mario 'BitKoenig' Holbe wrote:
> > Without marking everything runs as it should be.
> > Marking eth0 packets results in all advertisements transmitted via eth1.
> > The behaviour goes back to normal as soon as the marking disappears.
> > I also tried marking with 0xff00 instead of 1 - same results.
> That probably means that we're not using the correct keys
> when rerouting in ip6_route_me_harder(). Just for testing,
> please try to disable the ip6_route_me_harder() call in
> net/ipv6/netfilter/ip6table_mangle.c::ip6t_mangle_out().

Yes, disabling the ip6_route_me_harder() call in ip6t_mangle_out()
results in the advertisements being transmitted on the correct
interfaces.


Mario
-- 
I thought the only thing the internet was good for was porn.  -- Futurama

Download attachment "signature.asc" of type "application/pgp-signature" (483 bytes)