2008-02-05  Ray Strode  <rstrode@redhat.com>

	Add PAM auditing logic.  Based on patch and feedback from
	Brian Cameron and earlier code from Gary Winiger and
	Steve Grubb.

	* configure.ac: set HAVE_ADT and HAVE_LIBAUDIT as appropriate
	for solaris and linux audit support, respectively.
	* daemon/Makefile.am: add new auditing code to Makefile.
	* daemon/gdm-session-auditor.[ch]: generic base class for doing
	auditing.
	* daemon/gdm-session-linux-auditor.[ch]: linux auditor subclass
	* daemon/gdm-session-solaris-auditor.[ch]: solaris auditor 
	subclass
	* daemon/gdm-session-worker.c (GdmSessionWorkerPrivate): track
	auditor
	(gdm_session_worker_update_username): inform audit code about
	username changes
	(gdm_session_worker_start_auditor): instantiate the auditor
	(gdm_session_worker_stop_auditor): free the auditor
	(gdm_session_worker_uninitialize_pam): inform audit code about
	logout/login failure and then free the auditor
	(_get_tty_for_pam): fix calling return more than once on solaris
	(gdm_session_worker_initialize_pam): instantiate the auditor.
	(gdm_session_worker_authorize_user): inform audit code about
	password changes
	(gdm_session_worker_accredit_user): inform audit code about
	user getting credentials
	(gdm_session_worker_open_user_session): inform audit code about
	successful login

svn path=/trunk/; revision=5702