linux-kernel - [PATCH] Let userspace fully control TTY input auditing

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Message-ID: <479004F0.10508@redhat.com>
Date:	Fri, 18 Jan 2008 02:46:24 +0100
From:	Miloslav Trmac <mitr@...hat.com>
To:	dwmw2@...radead.org
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] Let userspace fully control TTY input auditing

Remove the code that automatically disables TTY input auditing in 
processes that open TTYs when they have no other TTY open; this 
heuristic was intended to automatically handle daemons, but it has false 
positives (e.g. with sshd) that make it impossible to control TTY input 
auditing from a PAM module.  With this patch, TTY input auditing is 
controlled from user-space only.

On the other hand, not even for daemons does it make sense to audit 
"input" from PTY masters; this data was produced by a program writing to 
the PTY slave, and does not represent data entered by the user.

View attachment "linux-upstream.patch" of type "text/x-patch" (4703 bytes)