Add login.conf checking to periodic security scripts. If the login.conf file

is not UID/GID 0, limits will be ignored and a strange error sent to auth.log.

Head nod:	ru, rwatson

etc/defaults/periodic.conf

@@ -159,6 +159,9 @@ daily_status_security_chkuid0_enable="YES"
 # 400.passwdless
 daily_status_security_passwdless_enable="YES"
 
+# 410.logincheck
+daily_status_security_logincheck_enable="YES"
+
 # 500.ipfwdenied
 daily_status_security_ipfwdenied_enable="YES"
 

etc/periodic/security/410.logincheck

@@ -0,0 +1,52 @@
+#!/bin/sh -
+#
+# Copyright (c) 2006  Tom Rhodes
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# If there is a global system configuration file, suck it in.
+#
+if [ -r /etc/defaults/periodic.conf ]
+then
+    . /etc/defaults/periodic.conf
+    source_periodic_confs
+fi
+
+case "$daily_status_security_logincheck_enable" in
+    [Yy][Ee][Ss])
+	echo ""
+	echo 'Checking login.conf permissions:'
+	if [ -G /etc/login.conf -a -O /etc/login.conf ] then
+	    n=0
+	else
+	    echo "Bad ownership of /etc/login.conf"
+	    n=1
+	fi
+	[ $n -gt 0 ] && rc=1 || rc=0;;
+    *)	rc=0;;
+esac
+
+exit "$rc"

etc/periodic/security/Makefile

@@ -4,6 +4,7 @@ FILES=	100.chksetuid \
 	200.chkmounts \
 	300.chkuid0 \
 	400.passwdless \
+	410.logincheck \
 	500.ipfwdenied \
 	510.ipfdenied \
 	520.pfdenied \