add client startup script, when using nfs4

package/nfs-utils/files/nfs-utils.postinst

@@ -1,6 +1,7 @@
 #!/bin/sh
 . $IPKG_INSTROOT/etc/functions.sh
 add_rcconf "kernel nfs server" nfs_server NO
+add_rcconf "kernel nfs client (v4)" nfs_client NO
 add_rcconf "kernel nfs server version" nfs_server_version 3
 add_service nfs 2049/tcp
 add_service nfs 2049/udp

package/nfs-utils/files/nfs.init

@@ -0,0 +1,34 @@
+#!/bin/sh
+#PKG nfs-utils
+#INIT 70
+
+. /etc/rc.conf
+
+case $1 in
+autostop) ;;
+autostart)
+	test x"${portmap:-NO}" = x"NO" && test x"${rpcbind:-NO}" = x"NO" && exit 0
+	test x"${nfs_client:-NO}" = x"NO" && exit 0
+	exec sh $0 start
+	;;
+start)
+	mkdir -p /var/lib/nfs/rpc_pipefs
+	mount -t rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs
+	/usr/sbin/idmapd
+	/usr/sbin/gssd
+	;;
+stop)
+	kill $(pgrep -f /usr/sbin/idmapd)
+	kill $(pgrep -f /usr/sbin/gssd)
+	umount /var/lib/nfs/rpc_pipefs
+	;;
+restart)
+	sh $0 stop
+	sh $0 start
+	;;
+*)
+	echo "Usage: $0 {start | stop | restart}"
+	exit 1
+	;;
+esac
+exit $?