netdev - Re: bridge: Save frag_max_size between PRE_ROUTING and POST

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:	Tue, 07 Oct 2014 15:13:10 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	fw@...len.de, netfilter-devel@...r.kernel.org, bsd@...hat.com,
	stephen@...workplumber.org, netdev@...r.kernel.org,
	eric.dumazet@...il.com, davidn@...idnewall.com
Subject: Re: bridge: Save frag_max_size between PRE_ROUTING and POST_ROUTING

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Sun, 5 Oct 2014 12:00:22 +0800

> bridge: Save frag_max_size between PRE_ROUTING and POST_ROUTING
> 
> As we may defragment the packet in IPv4 PRE_ROUTING and refragment
> it after POST_ROUTING we should save the value of frag_max_size.
> 
> This is still very wrong as the bridge is supposed to leave the
> packets intact, meaning that the right thing to do is to use the
> original frag_list for fragmentation.
> 
> Unfortunately we don't currently guarantee that the frag_list is
> left untouched throughout netfilter so until this changes this is
> the best we can do.
> 
> There is also a spot in FORWARD where it appears that we can
> forward a packet without going through fragmentation, mark it
> so that we can fix it later.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied, thanks Herbert.
--
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