linux-kernel - Re: bride: IPv6 multicast snooping enhancements

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:	Thu, 05 Sep 2013 12:36:26 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	linus.luessing@....de
Cc:	netdev@...r.kernel.org, bridge@...ts.linux-foundation.org,
	stephen@...workplumber.org, linux-kernel@...r.kernel.org,
	herbert@...dor.apana.org.au, amwang@...hat.com,
	linux@...er-net.org.uk
Subject: Re: bride: IPv6 multicast snooping enhancements

From: Linus Lüssing <linus.luessing@....de>
Date: Wed,  4 Sep 2013 02:13:37 +0200

> Here are two, small feature changes I would like to submit to increase
> the usefulness of the multicast snooping of the bridge code.
> 
> The first patch is an unaltered one I had submitted before, but since it
> got no feedback I'm resubmitting it here for net-next. With the recently
> added patch to disable snooping if there is no querier (b00589af + 248ba8ec05
> + 8d50af4fb), it should be a safe choice now (without these, patch 1/2 would
> have introduced another potential for lost IPv6 multicast packets).
> 
> Both conceptually and also with some testing and fuzzing, I couldn't spot
> any more causes for potential packet loss. And since the multicast snooping
> code has now been tried by various people, I think it should be a safe
> choice to apply the multicast snooping not only for IPv6 multicast packets
> with a scope greater than link-local, but also for packets of exactly this
> scope. The IPv6 standard mandates MLD reports for link-local multicast, too,
> so we can safely snoop them as well (in contrast to IPv4 link-local).

Both patches applied, thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/