freebsd-nq/usr.sbin/service/service.sh
Andrew Gierth 55deb0a5f0 service(8): use an environment more consistent with init(8)
init(8) sets the "daemon" login class without specifying a pw
entry (so no substitutions are done on the variables). service(8)'s
use of env -L had the effect of specifying root's pw entry, with two
effects: getpwnam and getpwuid are being called, which may not be
entirely safe depending on what nsswitch is up to and what stage of
boot we are at, and substitutions would have been done.

Fix by teaching env(8) to allow -L -/classname to set the class
environment with no pw entry at all specified, and use it in
service(8).

PR:		253959
2021-03-03 12:25:11 -06:00

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#!/bin/sh
# $FreeBSD$
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2009 Douglas Barton
# 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.
. /etc/rc.subr
load_rc_config 'XXX'
usage () {
echo ''
echo 'Usage:'
echo "${0##*/} [-j <jail name or id>] -e"
echo "${0##*/} [-j <jail name or id>] -R"
echo "${0##*/} [-j <jail name or id>] [-v] -l | -r"
echo "${0##*/} [-j <jail name or id>] [-v] <rc.d script> start|stop|etc."
echo "${0##*/} -h"
echo ''
echo "-j Perform actions within the named jail"
echo '-e Show services that are enabled'
echo "-R Stop and start enabled $local_startup services"
echo "-l List all scripts in /etc/rc.d and $local_startup"
echo '-r Show the results of boot time rcorder'
echo '-v Verbose'
echo ''
}
while getopts 'j:ehlrRv' COMMAND_LINE_ARGUMENT ; do
case "${COMMAND_LINE_ARGUMENT}" in
j) JAIL="${OPTARG}" ;;
e) ENABLED=eopt ;;
h) usage ; exit 0 ;;
l) LIST=lopt ;;
r) RCORDER=ropt ;;
R) RESTART=Ropt ;;
v) VERBOSE=vopt ;;
*) usage ; exit 1 ;;
esac
done
shift $(( $OPTIND - 1 ))
if [ -n "${JAIL}" ]; then
# We need to rebuild the command line before passing it on.
# We do not send the -j argument into the jail.
args=""
[ -n "${ENABLED}" ] && args="${args} -e"
[ -n "${LIST}" ] && args="${args} -l"
[ -n "${RCORDER}" ] && args="${args} -r"
[ -n "${RESTART}" ] && args="${args} -R"
[ -n "${VERBOSE}" ] && args="${args} -v"
# Call jexec(8) with the rebuild args and any positional args that
# were left in $@
/usr/sbin/jexec -l "${JAIL}" /usr/sbin/service $args "$@"
exit $?
fi
if [ -n "$RESTART" ]; then
skip="-s nostart"
if [ `/sbin/sysctl -n security.jail.jailed` -eq 1 ]; then
skip="$skip -s nojail"
if [ `/sbin/sysctl -n security.jail.vnet` -ne 1 ]; then
skip="$skip -s nojailvnet"
fi
fi
[ -n "$local_startup" ] && find_local_scripts_new
files=`rcorder ${skip} ${local_rc} 2>/dev/null`
for file in `reverse_list ${files}`; do
if grep -q ^rcvar $file; then
eval `grep ^name= $file`
eval `grep ^rcvar $file`
if [ -n "$rcvar" ]; then
load_rc_config_var ${name} ${rcvar}
fi
checkyesno $rcvar 2>/dev/null && run_rc_script ${file} stop
fi
done
for file in $files; do
if grep -q ^rcvar $file; then
eval `grep ^name= $file`
eval `grep ^rcvar $file`
checkyesno $rcvar 2>/dev/null && run_rc_script ${file} start
fi
done
exit 0
fi
if [ -n "$ENABLED" -o -n "$RCORDER" ]; then
# Copied from /etc/rc
skip="-s nostart"
if [ `/sbin/sysctl -n security.jail.jailed` -eq 1 ]; then
skip="$skip -s nojail"
if [ `/sbin/sysctl -n security.jail.vnet` -ne 1 ]; then
skip="$skip -s nojailvnet"
fi
fi
[ -n "$local_startup" ] && find_local_scripts_new
files=`rcorder ${skip} /etc/rc.d/* ${local_rc} 2>/dev/null`
fi
if [ -n "$ENABLED" ]; then
for file in $files; do
if grep -q ^rcvar $file; then
eval `grep ^name= $file`
eval `grep ^rcvar $file`
if [ -n "$rcvar" ]; then
load_rc_config_var ${name} ${rcvar}
fi
checkyesno $rcvar 2>/dev/null && echo $file
fi
done
exit 0
fi
if [ -n "$LIST" ]; then
for dir in /etc/rc.d $local_startup; do
[ -n "$VERBOSE" ] && echo "From ${dir}:"
[ -d ${dir} ] && /bin/ls -1 ${dir}
done
exit 0
fi
if [ -n "$RCORDER" ]; then
for file in $files; do
echo $file
if [ -n "$VERBOSE" ]; then
case "$file" in
*/${early_late_divider})
echo '========= Early/Late Divider =========' ;;
esac
fi
done
exit 0
fi
if [ $# -gt 1 ]; then
script=$1
shift
else
usage
exit 1
fi
cd /
for dir in /etc/rc.d $local_startup; do
if [ -x "$dir/$script" ]; then
[ -n "$VERBOSE" ] && echo "$script is located in $dir"
exec env -i -L -/daemon HOME=/ PATH=/sbin:/bin:/usr/sbin:/usr/bin "$dir/$script" "$@"
fi
done
# If the script was not found
echo "$script does not exist in /etc/rc.d or the local startup"
echo "directories (${local_startup}), or is not executable"
exit 1