xref: /illumos-gate/usr/src/cmd/auditd/svc-auditd (revision 5422785d352a2bb398daceab3d1898a8aa64d006)
1#! /sbin/sh
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
25#
26
27. /lib/svc/share/smf_include.sh
28
29AUDIT=/usr/sbin/audit
30AUDITCONFIG=/usr/sbin/auditconfig
31AUDITD=/usr/sbin/auditd
32AWK=/usr/bin/awk
33EGREP=/usr/bin/egrep
34MV=/usr/bin/mv
35PKILL=/usr/bin/pkill
36SLEEP=/usr/bin/sleep
37SVCADM=/usr/sbin/svcadm
38SVCCFG=/usr/sbin/svccfg
39SVCS=/usr/bin/svcs
40
41AUDIT_STARTUP=/etc/security/audit_startup
42AUDITD_FMRI="system/auditd:default"
43
44#
45# main - the execution starts there.
46main()
47{
48	#
49	# Do the basic argument inspection and take the appropriate action.
50	case "$SMF_METHOD" in
51	start)
52		do_common
53		do_start
54		;;
55	refresh)
56		do_common
57		do_refresh
58		;;
59	*)
60		if [ -z "$SMF_METHOD" ]; then
61			echo "$0:  No SMF method defined."
62		else
63			echo "$0:  Unsupported SMF method: $SMF_METHOD."
64		fi
65		exit $SMF_EXIT_ERR_NOSMF
66		;;
67	esac
68}
69
70#
71# do_common - executes all the code common to all supported service methods.
72do_common()
73{
74	#
75	# If the audit state is "disabled" auditconfig returns non-zero exit
76	# status unless the c2audit module is loaded; if c2audit is loaded,
77	# "disabled" becomes "noaudit" early in the boot cycle and "auditing"
78	# only after auditd starts.
79	AUDITCOND="`$AUDITCONFIG -getcond 2>/dev/null`"
80	if [ $? -ne 0 ]; then
81		# The decision whether to start
82		# auditing is driven by bsmconv(1M) / bsmunconv(1M)
83		echo "$0: Unable to get current kernel auditing condition."
84		$SVCADM mark maintenance $AUDITD_FMRI
85		exit $SMF_EXIT_MON_OFFLINE
86	fi
87	#
88	# In a non-global zone, auditd is started/refreshed only if the
89	# "perzone" audit policy has been set.
90	if smf_is_nonglobalzone; then
91		$AUDITCONFIG -t -getpolicy | \
92		    $EGREP "perzone|all" 1>/dev/null 2>&1
93		if [ $? -eq 1 ]; then
94			echo "$0: auditd(1M) is not configured to run in"
95			echo "   a local zone, perzone policy not set" \
96			    "(see auditconfig(1M))."
97			$SVCADM disable $AUDITD_FMRI
98			$SLEEP 5 &
99			exit $SMF_EXIT_OK
100		fi
101	fi
102	#
103	# Validate the audit service configuration
104	val_err="`$AUDIT -v 2>&1`"
105	if [ $? -ne 0 ]; then
106		echo "$0: audit service misconfiguration detected (${val_err})"
107		$SVCADM mark maintenance $AUDITD_FMRI
108		exit $SMF_EXIT_MON_OFFLINE
109	fi
110}
111
112#
113# do_start - service start method helper.
114do_start()
115{
116	#
117	# The transition of the audit_startup(1M) has to be performed.
118	if [ -f "$AUDIT_STARTUP" ]; then
119
120		if [ -x "$AUDIT_STARTUP" ]; then
121			$AUDIT_STARTUP
122		else
123			echo "$0: Unable to execute $AUDIT_STARTUP"
124			$SVCADM mark maintenance $AUDITD_FMRI
125			exit $SMF_EXIT_MON_OFFLINE
126		fi
127
128		echo "$0: Transition of audit_startup(1M) started."
129
130		$MV $AUDIT_STARTUP $AUDIT_STARTUP._transitioned_
131		if [ $? -ne 0 ]; then
132			# Unable to perform the backup of $AUDIT_STARTUP
133			echo "$0: The $AUDIT_STARTUP was not moved to"
134			echo "   $AUDIT_STARTUP._transitioned_"
135		fi
136
137		#
138		# Refreshing service to make the newly created properties
139		# available for any other consequent svcprop(1).
140		$SVCCFG -s $AUDITD_FMRI refresh
141		if [ $? -ne 0 ]; then
142			echo "$0: Refresh of $AUDITD_FMRI configuration failed."
143			$SVCADM mark maintenance $AUDITD_FMRI
144			exit $SMF_EXIT_ERR_CONFIG
145		fi
146
147		echo "$0: Transition of audit_startup(1M) finished."
148	fi
149
150	#
151	# Daemon forks, parent exits when child says it's ready.
152	exec $AUDITD
153}
154
155#
156# do_refresh - service refresh method helper.
157do_refresh()
158{
159	#
160	# The refresh capability is available only for those systems
161	# with already transformed audit_startup(1M) into $AUDITD_FMRI
162	# service properties. See do_start() for more information.
163	if [ ! -f "$AUDIT_STARTUP" ]; then
164		#
165		# Find the contract_id.
166		contract_id=`$SVCS -l $AUDITD_FMRI | \
167		    $AWK '/^contract_id/ {print $2}'`
168		if [ -z "${contract_id}" ]; then
169			echo "$0: Service $AUDITD_FMRI has no associated" \
170			    "contract. Service cannot be refreshed."
171			exit $SMF_EXIT_ERR_FATAL
172		fi
173		#
174		# signal to auditd(1M):
175		$PKILL -HUP -c ${contract_id}
176		if [ $? -ne 0 ]; then
177			echo "$0: SIGHUP was not successfully delivered to" \
178			    "the related contract (${contract_id}/err:$?)."
179			$SVCADM mark maintenance $AUDITD_FMRI
180			exit $SMF_EXIT_ERR_FATAL
181		fi
182		$SLEEP 5 &
183	else
184		echo "$0: Service refresh method not supported on systems" \
185		   "without converted audit_startup(1M) into auditd service" \
186		   "SMF configuration. Clear the service (svcadm(1M))."
187		$SVCADM mark maintenance $AUDITD_FMRI
188		exit $SMF_EXIT_ERR_CONFIG
189	fi
190}
191
192#
193# Call main() to start the own script execution.
194main
195