netdev - Re: [PATCH net-next] vxlan: don't bypass encapsulation for multi- and broadcasts

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, 15 Apr 2013 08:31:15 +0300
From:	Mike Rapoport <mike.rapoport@...ellosystems.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, stephen@...workplumber.org
Subject: Re: [PATCH net-next] vxlan: don't bypass encapsulation for multi- and broadcasts

On Sun, Apr 14, 2013 at 10:39 PM, David Miller <davem@...emloft.net> wrote:
> From: Mike Rapoport <mike.rapoport@...ellosystems.com>
> Date: Sun, 14 Apr 2013 12:21:51 +0300
>
>> The multicast and broadcast packets may have RTCF_LOCAL set in rt_flags
>> and therefore will be sent out bypassing encapsulation. This breaks
>> delivery of packets sent to the vxlan multicast group.
>> Disabling encapsulation bypass for multicasts and broadcasts fixes the
>> issue.
>>
>> Signed-off-by: Mike Rapoport <mike.rapoport@...ellosystems.com>
>
> This still won't handle the case of encapsulations occuring in different
> namespaces or virtual machines.
>
> I really want this fixed correctly.

I'm sorry, but I don't quite follow you. The patch does not aim to
reduce the amount of encapsulation. On the contrary, it prevents some
packets from being encapsulated when they should not be...

-- 
Sincerely yours,
Mike.
--
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