netdev - Re: PATCH: fix bridged 802.3ad bonding

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, 03 Jun 2008 16:13:13 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Jiri Bohac <jbohac@...e.cz>
CC:	netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Jay Vosburgh <fubar@...ibm.com>
Subject: Re: PATCH: fix bridged 802.3ad bonding

Jiri Bohac wrote:
> Hi,
> 
> Bonding in 802.3ad mode breaks when the bond interface is added
> to a bridge (which makes 802.3ad unusable in XEN, for example).
> 
> The problem is that br_pass_frame_up() will change the skb's dev
> pointer to point to the bridge interface. As a result, the LACP
> packets will not reach the bond_3ad_lacpdu_recv() protocol
> handler registered on the bonding device. Even if they did, the
> handler won't work with the changed skb->dev.
> 
> The following patch fixes the problem.


This shouldn't be done in the core code. How about handling this
in either the bridging code or registering the ptype handler for
the briding device?

--
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