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