linux-kernel - Re: [RFC v3 02/10] Revert "lsm: Remove the socket_post

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Message-ID: <87k4e6n929.fsf@synack.fr>
Date:	Wed, 04 May 2011 10:50:38 +0200
From:	Samir Bellabes <sam@...ack.fr>
To:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc:	paul.moore@...com, linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org, hadi@...erus.ca, kaber@...sh.net,
	zbr@...emap.net, root@...aldomain.pl
Subject: Re: [RFC v3 02/10] Revert "lsm: Remove the socket_post_accept() hook"

Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp> writes:

> Paul Moore wrote:
>> On Tuesday, May 03, 2011 10:24:15 AM Samir Bellabes wrote:
>> > snet needs to reintroduce this hook, as it was designed to be: a hook for
>> > updating security informations on objects.
>> 
>> Looking at this and 5/10 again, it seems that you should be able to do what 
>> you need with the sock_graft() hook.  Am I missing something?
>> 
>> My apologies if we've already discussed this approach previously ...
>
> Third problem (though independent with security_sock_graft()) is that
> snet_do_send_event() ignores snet_nl_send_event() failure.

using snet_do_send_event() means that system is sending data to
userspace. the system is not waiting for a verdict from userspace.

If error occurs, we actually loose the information data.
I may be able to write a solution which try to send the data again, but
we need a exit solution for this loop (a number of try ?).
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