4 # This shell script takes care of starting and stopping
5 # the kernel-mode NFS server.
8 # description: NFS is a popular protocol for file sharing across TCP/IP \
9 # networks. This service provides NFS server functionality, \
10 # which is configured via the /etc/exports file.
16 DESC="NFS kernel daemon"
19 # Exit if required binaries are missing.
20 [ -x $PREFIX/sbin/rpc.nfsd ] || exit 0
21 [ -x $PREFIX/sbin/rpc.mountd ] || exit 0
22 [ -x $PREFIX/sbin/exportfs ] || exit 0
25 DEFAULTFILE=/etc/default/nfs-kernel-server
32 PROCNFSD_MOUNTPOINT=/proc/fs/nfsd
33 if [ -f $DEFAULTFILE ]; then
38 if [ -x /sbin/modprobe ]
40 modprobe -q "$1" || true
45 if ! grep -E -qs "$1\$" /proc/filesystems
49 if ! mountpoint -q "$2"
51 mount -t "$1" "$1" "$2"
57 # See how we were called.
60 cd / # daemons should have root dir as cwd
61 if [ -f /etc/exports ]
65 # See if our running kernel supports the NFS kernel server
66 if [ -f /proc/kallsyms ] && ! grep -qE 'init_nf(sd| )' /proc/kallsyms; then
67 echo "Not starting $DESC: no support in current kernel."
71 do_mount nfsd $PROCNFSD_MOUNTPOINT || NEED_SVCGSSD=no
72 printf "Exporting directories for $DESC..."
73 $PREFIX/sbin/exportfs -r
76 printf "Starting $DESC:"
78 start-stop-daemon --start --quiet \
79 --nicelevel $RPCNFSDPRIORITY \
80 --exec $PREFIX/sbin/rpc.nfsd -- $RPCNFSDCOUNT
84 # make sure 127.0.0.1 is a valid source for requests
86 if [ -f /proc/net/rpc/auth.unix.ip/channel ]
88 fgrep -qs 127.0.0.1 /proc/net/rpc/auth.unix.ip/content || {
89 echo "nfsd 127.0.0.1 2147483647 localhost" >/proc/net/rpc/auth.unix.ip/channel
94 $PREFIX/bin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1 ||
95 RPCMOUNTDOPTS="$RPCMOUNTDOPTS --no-nfs-version 3"
97 [ -z "$ClearAddr" ] || echo "nfsd 127.0.0.1 1" >/proc/net/rpc/auth.unix.ip/channel
99 start-stop-daemon --start --quiet \
100 --exec $PREFIX/sbin/rpc.mountd -- $RPCMOUNTDOPTS
103 echo "Not starting $DESC: No exports."
108 printf "Stopping $DESC: mountd"
109 start-stop-daemon --stop --oknodo --quiet \
110 --name rpc.mountd --user 0
112 start-stop-daemon --stop --oknodo --quiet \
113 --name nfsd --user 0 --signal 2
116 printf "Unexporting directories for $DESC..."
117 $PREFIX/sbin/exportfs -au
118 if mountpoint -q /proc/nfs/nfsd
120 $PREFIX/sbin/exportfs -f
125 reload | force-reload)
126 printf "Re-exporting directories for $DESC..."
127 $PREFIX/sbin/exportfs -r
138 echo "Usage: nfs-kernel-server {start|stop|reload|force-reload|restart}"