debian/nfs-kernel-server.init

   1 #!/bin/sh
   2 #
   3 # nfs-kernel-server
   4 #               This shell script takes care of starting and stopping
   5 #               the kernel-mode NFS server.
   6 #
   7 # chkconfig: 345 60 20
   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.
  11 #
  12
  13 set -e
  14
  15 # What is this?
  16 DESC="NFS kernel daemon"
  17 PREFIX=/usr
  18
  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
  23 [ -x $PREFIX/sbin/rpc.svcgssd ] || exit 0
  24
  25 # Read config
  26 DEFAULTFILE=/etc/default/nfs-kernel-server
  27 RPCNFSDCOUNT=8
  28 RPCNFSDPRIORITY=0
  29 RPCMOUNTDOPTS=
  30 NEED_SVCGSSD=yes
  31 RPCGSSDOPTS=
  32 RPCSVCGSSDOPTS=
  33 PROCNFSD_MOUNTPOINT=/proc/fs/nfsd
  34 if [ -f $DEFAULTFILE ]; then
  35     . $DEFAULTFILE
  36 fi
  37
  38 do_modprobe() {
  39     if [ -x /sbin/modprobe ]
  40     then
  41         modprobe -q "$1" || true
  42     fi
  43 }
  44
  45 do_mount() {
  46     if ! grep -E -qs "$1\$" /proc/filesystems
  47     then
  48         return 1
  49     fi
  50     if ! mountpoint -q "$2"
  51     then
  52         mount -t "$1" "$1" "$2"
  53         return
  54     fi
  55     return 0
  56 }
  57
  58 # See how we were called.
  59 case "$1" in
  60   start)
  61         cd /    # daemons should have root dir as cwd
  62         if [ -f /etc/exports ]
  63         then
  64                 do_modprobe nfsd
  65
  66                 # See if our running kernel supports the NFS kernel server
  67                 if [ -f /proc/kallsyms ] && ! grep -q nfsd_version /proc/kallsyms; then
  68                         echo "Not starting $DESC: no support in current kernel."
  69                         exit 0
  70                 fi
  71
  72                 do_mount nfsd $PROCNFSD_MOUNTPOINT || NEED_SVCGSSD=no
  73                 printf "Exporting directories for $DESC..."
  74                 $PREFIX/sbin/exportfs -r
  75                 echo "done."
  76
  77                 printf "Starting $DESC:"
  78                 if [ "$NEED_SVCGSSD" = yes ]
  79                 then
  80                     printf " svcgssd"
  81                     start-stop-daemon --start --quiet \
  82                             --make-pidfile --pidfile /var/run/rpc.svcgssd.pid \
  83                             --exec $PREFIX/sbin/rpc.svcgssd -- $RPCSVCGSSDOPTS
  84                 fi
  85
  86                 printf " nfsd"
  87                 start-stop-daemon --start --quiet \
  88                     --nicelevel $RPCNFSDPRIORITY \
  89                     --exec $PREFIX/sbin/rpc.nfsd -- $RPCNFSDCOUNT
  90
  91                 printf " mountd"
  92
  93                 # make sure 127.0.0.1 is a valid source for requests
  94                 ClearAddr=
  95                 if [ -f /proc/net/rpc/auth.unix.ip/channel ]
  96                 then
  97                     fgrep -qs 127.0.0.1 /proc/net/rpc/auth.unix.ip/content || {
  98                         echo "nfsd 127.0.0.1 2147483647 localhost" >/proc/net/rpc/auth.unix.ip/channel
  99                         ClearAddr=yes
 100                     }
 101                 fi
 102
 103                 $PREFIX/bin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1 ||
 104                     RPCMOUNTDOPTS="$RPCMOUNTDOPTS --no-nfs-version 3"
 105
 106                 [ -z "$ClearAddr" ] || echo "nfsd 127.0.0.1 1" >/proc/net/rpc/auth.unix.ip/channel
 107
 108                 start-stop-daemon --start --quiet \
 109                     --exec $PREFIX/sbin/rpc.mountd -- $RPCMOUNTDOPTS
 110                 echo "."
 111         else
 112                 echo "Not starting $DESC: No exports."
 113         fi
 114         ;;
 115
 116   stop)
 117         printf "Stopping $DESC: mountd"
 118         start-stop-daemon --stop --oknodo --quiet \
 119             --name rpc.mountd --user 0
 120         if [ "$NEED_SVCGSSD" = yes ]
 121         then
 122             printf " svcgssd"
 123             start-stop-daemon --stop --oknodo --quiet \
 124                     --name rpc.svcgssd --user 0
 125             rm -f /var/run/rpc.svcgssd.pid
 126         fi
 127         printf " nfsd"
 128         start-stop-daemon --stop --oknodo --quiet \
 129             --name nfsd --user 0 --signal 2
 130         echo "."
 131
 132         printf "Unexporting directories for $DESC..."
 133         $PREFIX/sbin/exportfs -au
 134         if mountpoint -q /proc/nfs/nfsd
 135         then
 136             $PREFIX/sbin/exportfs -f
 137         fi
 138         echo "done."
 139         ;;
 140
 141   reload | force-reload)
 142         printf "Re-exporting directories for $DESC..."
 143         $PREFIX/sbin/exportfs -r
 144         echo "done."
 145         ;;
 146
 147   restart)
 148         $0 stop
 149         sleep 1
 150         $0 start
 151         ;;
 152
 153   *)
 154         echo "Usage: nfs-kernel-server {start|stop|reload|force-reload|restart}"
 155         exit 1
 156         ;;
 157 esac
 158
 159 exit 0