From: Alexander Viro <aviro@redhat.com>
To: "John D. Ramsdell" <ramsdell@mitre.org>
Cc: bsniffen@mitre.org, Linux Audit <linux-audit@redhat.com>
Subject: Re: [PATCH] Reporting file descriptors created by pipe and socketpair
Date: Tue, 12 Sep 2006 15:12:25 -0400 [thread overview]
Message-ID: <20060912191225.GL4144@devserv.devel.redhat.com> (raw)
In-Reply-To: <ogt3baxyma9.fsf@divan.mitre.org>
On Tue, Sep 12, 2006 at 02:25:50PM -0400, John D. Ramsdell wrote:
> Alexander Viro <aviro@redhat.com> writes:
>
> > c) just how do you propose to do "tracking file descriptors"?
>
> We aren't proposing to track file descriptors. We already have code
> that does that
Indeed? And how, pray tell, do you handle e.g. processes A and B sending
SCM_RIGHTS datagrams to C at the same moment? With data part containing
the indication which process had sent them, so C can handle them just
fine and do that in different ways depending on the origin of datagram.
Note that looking at the timestamps will not help you at all - you can
get
A enters sendmsg(2)
B enters sendmsg(2)
B puts datagram into queue
A puts datagram into queue
A leaves sendmsg(2)
B leaves sendmsg(2)
quite easily.
next prev parent reply other threads:[~2006-09-12 19:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-12 16:07 [PATCH] Reporting file descriptors created by pipe and socketpair John D. Ramsdell
2006-09-12 16:21 ` Alexander Viro
2006-09-12 17:41 ` Steve Grubb
2006-09-12 18:25 ` John D. Ramsdell
2006-09-12 19:12 ` Alexander Viro [this message]
2006-09-12 21:05 ` John D. Ramsdell
2006-09-12 19:22 ` John D. Ramsdell
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