netdev - Re: [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv

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Message-Id: <200904220149.n3M1ngLa059958@www262.sakura.ne.jp>
Date:	Wed, 22 Apr 2009 10:49:42 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
To:	davem@...emloft.net
Cc:	paul.moore@...com, linux-security-module@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv_datagram().

David Miller wrote:
> We had a similar situation with read()'s on UDP sockets.
> 
> When poll() says something, it has to stick.
To adhere what poll() said (i.e. "connections are ready" or "datagrams are
ready"), security_socket_accept() and security_socket_recvmsg() hooks must be
removed. Otherwise, LSM users cannot adhere what poll() said.

However, security_socket_accept() and security_socket_recvmsg() hooks remain
there. LSM users are already using semantics which may not adhere what poll()
said.
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