#!/bin/sh /etc/rc.common
# Copyright (C) 2006 OpenWrt.org

START=99
STOP=60

USE_PROCD=1

NFS_DIR="/var/lib/nfs"
RECOVERY_DIR="$NFS_DIR/v4recovery"
LOCK_DIR="/var/lib/nfs/sm"
PROCFS_DIR="/proc/fs/nfsd"
VAR_NFS_DIR="/var/lib/nfs"
NFSDCLD_DIR="$NFS_DIR/nfsdcld"
RPC_PIPEFS_DIR="/tmp/lib/nfs/rpc_pipefs"

start_service() {
	grep -q "$PROCFS_DIR" /proc/mounts || \
	mount -t nfsd nfsd "$PROCFS_DIR"
	mkdir -p "$NFS_DIR"
	mkdir -p "$RECOVERY_DIR"
	mkdir -p "$LOCK_DIR"
	touch "$NFS_DIR/rmtab"

	mkdir -p "$VAR_NFS_DIR"
	chown -R nfs:nfs "$VAR_NFS_DIR"

	sysctl -w fs.nfs.nlm_tcpport=32777 fs.nfs.nlm_udpport=32777 >/dev/null

	procd_open_instance
	procd_set_param command /usr/sbin/rpc.statd -p 32778 -o 32779 -F
	procd_close_instance

	/usr/sbin/exportfs -r
	/usr/sbin/rpc.nfsd --grace-time 10

	procd_open_instance
	procd_set_param command /usr/sbin/rpc.mountd -p 32780 -F
	procd_close_instance

	# nfsdcld
	if [ -x /usr/sbin/nfsdcld ]; then
		mkdir -p "$NFSDCLD_DIR" "$RPC_PIPEFS_DIR"
		chmod 755 "$NFSDCLD_DIR" "$RPC_PIPEFS_DIR"
		grep -q "$RPC_PIPEFS_DIR" /proc/mounts || \
		mount -t rpc_pipefs none "$RPC_PIPEFS_DIR"
		procd_open_instance
		procd_set_param command /usr/sbin/nfsdcld
		procd_close_instance
	fi
}

stop_service() {
	rpc.nfsd 0 2>/dev/null
	/usr/sbin/exportfs -au

	# nfsdcld
	if [ -x /usr/sbin/nfsdcld ]; then
		pid=$(pgrep nfsdcld)
		if [ -n "$pid" ]; then
			kill "$pid"
		fi
		grep -q "$RPC_PIPEFS_DIR" /proc/mounts && \
		umount "$RPC_PIPEFS_DIR"
	fi

	grep -q "$PROCFS_DIR" /proc/mounts && \
	umount "$PROCFS_DIR"
}

service_triggers() {
	local export_dirs="$(while read mp _r; do echo -n "$mp "; done </etc/exports)"
	procd_add_reload_mount_trigger $export_dirs
}