1#!/bin/bash
2#
3# Copyright (c) 2005-2009 Wind River Systems, Inc.
4#
5# This program is free software; you can redistribute it and/or modify
6# it under the terms of the GNU General Public License version 2 as
7# published by the Free Software Foundation.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12# See the GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write to the Free Software
16# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
18usage() {
19	echo "Usage: $0 {start|stop|restart} <nfs-export-dir>"
20}
21
22if [ $# != 2 ]; then
23	usage
24	exit 1
25fi
26
27if [[ "$1" != "start" && "$1" != "stop" && "$1" != "restart" ]]; then
28	echo "Unknown command '$1'"
29	usage
30	exit 1
31fi
32
33if [ ! -d "$2" ]; then
34	echo "Error: '$2' does not exist"
35	usage
36	exit 1
37fi
38# Ensure the nfs-export-dir is an absolute path
39NFS_EXPORT_DIR=$(cd "$2" && pwd)
40
41SYSROOT_SETUP_SCRIPT=`which oe-find-native-sysroot 2> /dev/null`
42if [ -z "$SYSROOT_SETUP_SCRIPT" ]; then
43	echo "Error: Unable to find the oe-find-native-sysroot script"
44	echo "Did you forget to source your build environment setup script?"
45	exit 1
46fi
47. $SYSROOT_SETUP_SCRIPT meta-ide-support
48
49if [ ! -e "$OECORE_NATIVE_SYSROOT/usr/bin/unfsd" ]; then
50	echo "Error: Unable to find unfsd binary in $OECORE_NATIVE_SYSROOT/usr/bin/"
51
52	if [ "x$OECORE_DISTRO_VERSION" = "x" ]; then
53		echo "Have you run 'bitbake meta-ide-support'?"
54	else
55		echo "This shouldn't happen - something is missing from your toolchain installation"
56	fi
57	exit 1
58fi
59
60if [ ! -d ~/.runqemu-sdk ]; then
61	mkdir -p ~/.runqemu-sdk
62fi
63
64NFS_INSTANCE=${NFS_INSTANCE:=0}
65EXPORTS=~/.runqemu-sdk/exports$NFS_INSTANCE
66RMTAB=~/.runqemu-sdk/rmtab$NFS_INSTANCE
67NFSPID=~/.runqemu-sdk/nfs$NFS_INSTANCE.pid
68MOUNTPID=~/.runqemu-sdk/mount$NFS_INSTANCE.pid
69
70PSEUDO_OPTS="-P $OECORE_NATIVE_SYSROOT/usr"
71PSEUDO_LOCALSTATEDIR="$NFS_EXPORT_DIR/../$(basename $NFS_EXPORT_DIR).pseudo_state"
72export PSEUDO_LOCALSTATEDIR
73
74if [ ! -d "$PSEUDO_LOCALSTATEDIR" ]; then
75	echo "Error: $PSEUDO_LOCALSTATEDIR does not exist."
76	echo "Did you create the export directory using runqemu-extract-sdk?"
77	exit 1
78fi
79
80# NFS server port number
81NFSD_PORT=${NFSD_PORT:=$[ 3049 + 2 * $NFS_INSTANCE ]}
82# mountd port number
83MOUNTD_PORT=${MOUNTD_PORT:=$[ 3048 + 2 * $NFS_INSTANCE ]}
84
85## For debugging you would additionally add
86## --debug all
87UNFSD_OPTS="-p -N -i $NFSPID -e $EXPORTS -n $NFSD_PORT -m $MOUNTD_PORT"
88
89# See how we were called.
90case "$1" in
91  start)
92	PORTMAP_RUNNING=`ps -ef | grep portmap | grep -v grep`
93	RPCBIND_RUNNING=`ps -ef | grep rpcbind | grep -v grep`
94	if [[ "x$PORTMAP_RUNNING" = "x" && "x$RPCBIND_RUNNING" = "x" ]]; then
95		echo "======================================================="
96		echo "Error: neither rpcbind nor portmap appear to be running"
97		echo "Please install and start one of these services first"
98		echo "======================================================="
99		echo "Tip: for recent Ubuntu hosts, run:"
100		echo "  sudo apt-get install rpcbind"
101		echo "Then add OPTIONS=\"-i -w\"  to /etc/default/rpcbind and run"
102		echo "  sudo service portmap restart"
103
104		exit 1
105	fi
106
107	echo "Creating exports file..."
108	echo "$NFS_EXPORT_DIR (rw,no_root_squash,no_all_squash,insecure)" > $EXPORTS
109
110	echo "Starting User Mode nfsd"
111	echo "  $PSEUDO $PSEUDO_OPTS $OECORE_NATIVE_SYSROOT/usr/bin/unfsd $UNFSD_OPTS"
112	$PSEUDO $PSEUDO_OPTS $OECORE_NATIVE_SYSROOT/usr/bin/unfsd $UNFSD_OPTS
113	if [ ! $? = 0 ]; then
114		echo "Error starting nfsd"
115		exit 1
116	fi
117	# Check to make sure everything started ok.
118	if [ ! -f $NFSPID ]; then
119		echo "rpc.nfsd did not start correctly"
120		exit 1
121	fi
122	ps -fp `cat $NFSPID` > /dev/null 2> /dev/null
123	if [ ! $? = 0 ]; then
124		echo "rpc.nfsd did not start correctly"
125		exit 1
126	fi
127	echo " "
128	echo "On your target please remember to add the following options for NFS"
129	echo "nfsroot=IP_ADDRESS:$NFS_EXPORT_DIR,nfsvers=3,port=$NFSD_PORT,udp,mountport=$MOUNTD_PORT"
130	;;
131  stop)
132	if [ -f "$NFSPID" ]; then
133		echo "Stopping rpc.nfsd"
134		kill `cat $NFSPID`
135		rm -f $NFSPID
136	else
137		echo "No PID file, not stopping rpc.nfsd"
138	fi
139	if [ -f "$EXPORTS" ]; then
140		echo "Removing exports file"
141		rm -f $EXPORTS
142	fi
143	;;
144  restart)
145	$0 stop $NFS_EXPORT_DIR
146	$0 start $NFS_EXPORT_DIR
147	if [ ! $? = 0 ]; then
148		exit 1
149	fi
150	;;
151  *)
152	echo "$0 {start|stop|restart} <nfs-export-dir>"
153	;;
154esac
155
156exit 0
157