# Get network config
. /etc/sysconfig/network
+# Check that networking is up.
+if ! is_yes "${IPV4_NETWORKING}"; then
+ exit 0
+fi
+
# Get service config
-[ -f /etc/sysconfig/dhcp ] && . /etc/sysconfig/dhcp
+[ -f /etc/sysconfig/dhcpd ] && . /etc/sysconfig/dhcpd
-# Check that networking is up.
-[ "${NETWORKING}" = "no" ] && echo "Error: Networking is down" && exit 0
+if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
+ msg_network_down "DHCP Server"
+ exit 1
+fi
+check_device_up()
+{
+ local DEVICE=$1
+ if LC_ALL=C ip addr show dev $DEVICE | grep -q inet; then
+ return 0
+ else
+ return 1
+ fi
+}
-# See how we were called.
-case "$1" in
- start)
+# configtest itself
+configtest() {
+ local rc=0
+ /sbin/dhcpd -4 -t -T || rc=$?
+
+ # check if interfaces specified exist and have addresses
+ for i in $DHCPD_INTERFACES; do
+ if ! check_device_up $i; then
+ echo >&2 "Device '$i' does not exist or has no address configured"
+ rc=1
+ fi
+ done
+
+ return $rc
+}
+
+# wrapper for configtest
+checkconfig=-1
+checkconfig() {
+ local details=${1:-0}
+
+ # run checkconfig only once
+ if [ $checkconfig -ne -1 ]; then
+ return $checkconfig
+ fi
+
+ if [ "$details" = "1" ]; then
+ # run config test and display report (status action)
+ show "Checking %s configuration" "DHCP Server"; busy
+ local out
+ out=$(configtest 2>&1)
+ checkconfig=$?
+ if [ $checkconfig -eq 0 ]; then
+ ok
+ else
+ fail
+ fi
+ [ "$out" ] && echo >&2 "$out"
+ RETVAL=$checkconfig
+ else
+ # run config test and abort with nice message if failed
+ # (for actions checking status before action).
+ configtest >/dev/null 2>&1
+ checkconfig=$?
+ if [ $checkconfig -ne 0 ]; then
+ show "Checking %s configuration" "DHCP Server"; fail
+ nls 'Configuration test failed. See details with %s "checkconfig"' $0
+ exit $checkconfig
+ fi
+ fi
+}
+
+start() {
# Check if the service is already running?
+ if [ -f /var/lock/subsys/dhcpd ]; then
+ msg_already_running "DHCP Server"
+ return
+ fi
+
+ checkconfig
+ msg_starting "DHCP Server"
+ daemon /sbin/dhcpd -4 -q $DHCPD_INTERFACES
+ RETVAL=$?
+ [ $RETVAL -eq 0 ] && touch /var/lock/subsys/dhcpd
+}
+
+stop() {
if [ ! -f /var/lock/subsys/dhcpd ]; then
- show Starting dhcpd
- daemon dhcpd
- else
- echo "dhcpd already is running"
+ msg_not_running "DHCP Server"
+ return
fi
- touch /var/lock/subsys/dhcpd
- show Starting DHCP Server
- daemon dhcpd
- touch /var/lock/subsys/dhcpd
+
+ msg_stopping "DHCP Server"
+ killproc --pidfile /var/run/dhcpd.pid dhcpd
+ rm -f /var/run/dhcpd.pid /var/lock/subsys/dhcpd >/dev/null 2>&1
+}
+
+condrestart() {
+ if [ ! -f /var/lock/subsys/dhcpd ]; then
+ msg_not_running "DHCP Server"
+ RETVAL=$1
+ return
+ fi
+
+ checkconfig
+ stop
+ start
+}
+
+RETVAL=0
+# See how we were called.
+case "$1" in
+ start)
+ start
;;
stop)
- show Stopping DHCP Server
- killproc dhcpd
- rm -f /var/run/dhcpd.pid
- rm -f /var/lock/subsys/dhcpd
+ stop
+ ;;
+ restart)
+ checkconfig
+ stop
+ start
;;
- restart|reload)
- $0 stop
- $0 start
+ try-restart)
+ condrestart 0
+ ;;
+ force-reload)
+ condrestart 7
+ ;;
+ checkconfig|configtest)
+ checkconfig 1
;;
status)
- status dhcpd
+ status --pidfile /var/run/dhcpd.pid dhcpd
+ exit $?
;;
*)
- echo "Usage: $0 {start|stop|restart|reload|status}"
- exit 1
+ msg_usage "$0 {start|stop|restart|try-restart|force-reload|checkconfig|status}"
+ exit 3
esac
-exit 0
-
+exit $RETVAL