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#!/sbin/openrc-run
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
extra_commands="configtest"
: ${DHCPD_CONF:=/etc/dhcp/${SVCNAME}.conf}
depend() {
need net
use logger dns #@slapd@
}
get_var() {
local var="$(sed -n 's/^[[:blank:]]\?'"$1"' "*\([^#";]\+\).*/\1/p' "${chroot}${DHCPD_CONF}")"
echo ${var:-$2}
}
setup_opts() {
DHCPD_CHROOT=${DHCPD_CHROOT%/}
# Work out our cffile if it's in our DHCPD_OPTS
case " ${DHCPD_OPTS} " in
*" -cf "*)
DHCPD_CONF=" ${DHCPD_OPTS} "
DHCPD_CONF="${DHCPD_CONF##* -cf }"
DHCPD_CONF="${DHCPD_CONF%% *}"
;;
*) DHCPD_OPTS="${DHCPD_OPTS} -cf ${DHCPD_CONF}"
;;
esac
}
checkconfig() {
set -- ${DHCPD_OPTS} -chroot "${DHCPD_CHROOT:-/}" -t
dhcpd "$@" 1>/dev/null 2>&1
local ret=$?
if [ ${ret} -ne 0 ] ; then
eerror "${SVCNAME} has detected a syntax error in your configuration files:"
dhcpd "$@"
fi
return ${ret}
}
configtest() {
setup_opts
ebegin "Checking ${SVCNAME} configuration"
checkconfig
eend $?
}
start() {
setup_opts
local chroot="${DHCPD_CHROOT}"
if [ -n "${chroot}" ] ; then
# the config test want's these to exist
mkdir -p \
"${chroot}"/var/run/dhcp \
"${chroot}"/var/lib/dhcp \
"${chroot}"/etc/dhcp
fi
# see comment in get_var() above
if [ ! -f "${chroot}${DHCPD_CONF}" ] ; then
eerror "${chroot}${DHCPD_CONF} does not exist"
return 1
fi
checkconfig || return 1
checkpath -d -o dhcp:dhcp "${chroot}"/var/run/dhcp "${chroot}"/var/lib/dhcp
local leasefile="$(get_var lease-file-name /var/lib/dhcp/${SVCNAME}.leases)"
checkpath -f -o dhcp:dhcp "${chroot}${leasefile}"
# Setup LD_PRELOAD so name resolution works in our chroot.
if [ -n "${chroot}" ] ; then
checkpath -d -o root:root -m 755 "${chroot}"/dev "${chroot}"/etc "${chroot}"/proc
cp -pP /etc/localtime /etc/resolv.conf "${chroot}"/etc/
export LD_PRELOAD="${LD_PRELOAD} libresolv.so libnss_dns.so"
if ! mountinfo -q "${chroot}/proc" ; then
mount --bind /proc "${chroot}/proc"
fi
fi
local pidfile="$(get_var pid-file-name /var/run/dhcp/${SVCNAME}.pid)"
ebegin "Starting ${chroot:+chrooted }${SVCNAME}"
start-stop-daemon --start --exec /usr/sbin/dhcpd \
--pidfile "${chroot}/${pidfile}" \
-- ${DHCPD_OPTS} -q -pf "${pidfile}" -lf "${leasefile}" \
-user dhcp -group dhcp \
-chroot "${chroot:-/}" ${DHCPD_IFACE}
eend $? \
&& save_options dhcpd_chroot "${chroot}" \
&& save_options pidfile "${pidfile}"
}
stop() {
local chroot="$(get_options dhcpd_chroot)"
[ -z "${chroot}" ] && chroot="$(get_options chroot)"
ebegin "Stopping ${chroot:+chrooted }${SVCNAME}"
start-stop-daemon --stop --exec /usr/sbin/dhcpd \
--pidfile "${chroot}/$(get_options pidfile)"
res=$?
if [ ${res} -eq 0 ] && [ -n "${chroot}" ] ; then
if mountinfo -q "${chroot}/proc" ; then
umount "${chroot}/proc"
fi
fi
eend ${res}
}
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