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#!/bin/sh
#
# Startup script for nfs-utils
#
# The nfsd kernel module must exist along with its dependencies
modprobe -n nfsd || exit 0
#
# The environment variable NFS_SERVERS may be set in /etc/default/nfsd
# Other control variables may be overridden here too
test -r /etc/default/nfsd && . /etc/default/nfsd
#
# Location of exectuables:
test -x "$NFS_MOUNTD" || NFS_MOUNTD=/usr/sbin/mountd
test -x "$NFS_NFSD" || NFS_NFSD=/usr/sbin/nfsd
#
# The user mode program must also exist (it just starts the kernel
# threads using the kernel module code).
test -x "$NFS_MOUNTD" || exit 0
test -x "$NFS_NFSD" || exit 0
#
# Default is 8 threads, value is settable between 1 and the truely
# ridiculous 99
test "$NFS_SERVERS" -gt 0 && "$NFS_SERVERS" -lt 100 || NFS_SERVERS=8
#
# The default state directory is /var/lib/nfs
test -n "$NFS_STATEDIR" || NFS_STATEDIR=/var/lib/nfs
#
#----------------------------------------------------------------------
# Startup and shutdown functions.
# Actual startup/shutdown is at the end of this file.
#directories
create_directories(){
echo -n 'creating NFS state directory: '
mkdir -p "$NFS_STATEDIR"
( cd "$NFS_STATEDIR"
umask 077
mkdir -p sm sm.bak
test -w sm/state || {
rm -f sm/state
:>sm/state
}
umask 022
for file in xtab etab smtab rmtab
do
test -w "$file" || {
rm -f "$file"
:>"$file"
}
done
)
echo done
}
#mountd
start_mountd(){
echo -n 'starting mountd: '
start-stop-daemon --start --exec "$NFS_MOUNTD" -- "$@"
echo done
}
stop_mountd(){
echo -n 'stopping mountd: '
start-stop-daemon --stop --quiet --exec "$NFS_MOUNTD"
echo done
}
#
#nfsd
start_nfsd(){
echo -n "starting $1 nfsd kernel threads: "
start-stop-daemon --start --exec "$NFS_NFSD" -- "$@"
echo done
}
delay_nfsd(){
for delay in 0 1 2 3 4 5 6 7 8 9
do
if pidof nfsd >/dev/null
then
echo -n .
sleep 1
else
return 0
fi
done
return 1
}
stop_nfsd(){
# WARNING: this kills any process with the executable
# name 'nfsd'.
echo -n 'stopping nfsd: '
start-stop-daemon --stop --quiet --signal 1 --name nfsd
if delay_nfsd || {
echo failed
echo ' using signal 9: '
start-stop-daemon --stop --quiet --signal 9 --name nfsd
delay_nfsd
}
then
echo done
# This will remove, recursively, dependencies
echo -n 'removing nfsd kernel module: '
if modprobe -r nfsd
then
echo done
else
echo failed
fi
else
echo failed
fi
}
#----------------------------------------------------------------------
#
# supported options:
# start
# stop
# reload: reloads the exports file
# restart: stops and starts mountd
#FIXME: need to create the /var/lib/nfs/... directories
case "$1" in
start) create_directories
start_nfsd "$NFS_SERVERS"
start_mountd
test -r /etc/exports && exportfs -a;;
stop) exportfs -ua
stop_mountd
stop_nfsd;;
reload) test -r /etc/exports && exportfs -r;;
restart)exportfs -ua
stop_mountd
# restart does not restart the kernel threads,
# only the user mode processes
start_mountd
test -r /etc/exports && exportfs -a;;
esac
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