From: David Miller <davem@davemloft.net>
To: zenczykowski@gmail.com
Cc: netdev@vger.kernel.org, bazsi@balabit.hu
Subject: Re: [PATCH] net: change capability used by socket options IP{,V6}_TRANSPARENT
Date: Thu, 20 Oct 2011 00:34:58 -0400 (EDT) [thread overview]
Message-ID: <20111020.003458.1034042223691970343.davem@davemloft.net> (raw)
In-Reply-To: <CAHo-OoxYiqSOg6fPWWAaocF2L3DzyV_UFYT0CPRGVd7LNxDCwg@mail.gmail.com>
From: Maciej Żenczykowski <zenczykowski@gmail.com>
Date: Wed, 19 Oct 2011 21:31:06 -0700
>> A process with CAP_NET_RAW can spit whatever crap they want onto the
>> network, and receive all packets with impunity.
>
> Agreed. But it can do so via raw sockets, it cannot do so via normal
> udp/tcp/ip sockets.
> That's why I'd like to relax the permissions check on being able to
> switch a socket
> into transparent mode. A process with CAP_NET_RAW can already pretty
> much emulate
> that behaviour by using raw sockets - it just can't do that using the
> higher level, often more
> usable/useful socket/protocol apis.
>
>> I can't see what this buys us at all, sorry.
>
> See above.
Ok, I'm convinced, send me that patch without the warning messages.
Thanks.
next prev parent reply other threads:[~2011-10-20 4:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-30 21:45 IP_TRANSPARENT requires CAP_NET_ADMIN - why? Maciej Żenczykowski
2011-09-01 21:25 ` Maciej Żenczykowski
2011-09-02 8:43 ` Balazs Scheidler
2011-09-02 19:10 ` [PATCH] net: change capability used by socket options IP{,V6}_TRANSPARENT Maciej Żenczykowski
2011-09-13 5:55 ` Maciej Żenczykowski
2011-09-13 15:27 ` Balazs Scheidler
2011-09-14 6:45 ` Maciej Żenczykowski
2011-09-20 19:42 ` David Miller
2011-10-17 22:16 ` Maciej Żenczykowski
2011-10-17 22:19 ` Maciej Żenczykowski
2011-10-19 23:34 ` David Miller
2011-10-20 3:32 ` Maciej Żenczykowski
2011-10-20 4:19 ` David Miller
2011-10-20 4:31 ` Maciej Żenczykowski
2011-10-20 4:34 ` David Miller [this message]
2011-10-20 22:10 ` [PATCH] net: allow CAP_NET_RAW to set " Maciej Żenczykowski
2011-10-20 22:22 ` David Miller
2011-09-22 23:29 ` [PATCH] net: change capability used by " Maciej Żenczykowski
2011-09-23 14:45 ` Serge E. Hallyn
2011-09-23 16:36 ` Casey Schaufler
2011-09-23 19:33 ` Maciej Żenczykowski
2011-09-26 16:31 ` Casey Schaufler
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