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
  24 # Read config
  25 DEFAULTFILE=/etc/default/nfs-kernel-server
  26 RPCNFSDCOUNT=8
  27 RPCNFSDPRIORITY=0
  28 RPCMOUNTDOPTS=
  29 NEED_SVCGSSD=yes
  30 RPCGSSDOPTS=
  31 RPCSVCGSSDOPTS=
  32 PROCNFSD_MOUNTPOINT=/proc/fs/nfsd
  33 if [ -f $DEFAULTFILE ]; then
  34     . $DEFAULTFILE
  35 fi
  36
  37 do_modprobe() {
  38     if [ -x /sbin/modprobe ]
  39     then
  40         modprobe -q "$1" || true
  41     fi
  42 }
  43
  44 do_mount() {
  45     if ! grep -E -qs "$1\$" /proc/filesystems
  46     then
  47         return 1
  48     fi
  49     if ! mountpoint -q "$2"
  50     then
  51         mount -t "$1" "$1" "$2"
  52         return
  53     fi
  54     return 0
  55 }
  56
  57 # See how we were called.
  58 case "$1" in
  59   start)
  60         cd /    # daemons should have root dir as cwd
  61         if [ -f /etc/exports ]
  62         then
  63                 do_modprobe nfsd
  64
  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."
  68                         exit 0
  69                 fi
  70
  71                 do_mount nfsd $PROCNFSD_MOUNTPOINT || NEED_SVCGSSD=no
  72                 printf "Exporting directories for $DESC..."
  73                 $PREFIX/sbin/exportfs -r
  74                 echo "done."
  75
  76                 printf "Starting $DESC:"
  77                 printf " nfsd"
  78                 start-stop-daemon --start --quiet \
  79                     --nicelevel $RPCNFSDPRIORITY \
  80                     --exec $PREFIX/sbin/rpc.nfsd -- $RPCNFSDCOUNT
  81
  82                 printf " mountd"
  83
  84                 # make sure 127.0.0.1 is a valid source for requests
  85                 ClearAddr=
  86                 if [ -f /proc/net/rpc/auth.unix.ip/channel ]
  87                 then
  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
  90                         ClearAddr=yes
  91                     }
  92                 fi
  93
  94                 $PREFIX/bin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1 ||
  95                     RPCMOUNTDOPTS="$RPCMOUNTDOPTS --no-nfs-version 3"
  96
  97                 [ -z "$ClearAddr" ] || echo "nfsd 127.0.0.1 1" >/proc/net/rpc/auth.unix.ip/channel
  98
  99                 start-stop-daemon --start --quiet \
 100                     --exec $PREFIX/sbin/rpc.mountd -- $RPCMOUNTDOPTS
 101                 echo "."
 102         else
 103                 echo "Not starting $DESC: No exports."
 104         fi
 105         ;;
 106
 107   stop)
 108         printf "Stopping $DESC: mountd"
 109         start-stop-daemon --stop --oknodo --quiet \
 110             --name rpc.mountd --user 0
 111         printf " nfsd"
 112         start-stop-daemon --stop --oknodo --quiet \
 113             --name nfsd --user 0 --signal 2
 114         echo "."
 115
 116         printf "Unexporting directories for $DESC..."
 117         $PREFIX/sbin/exportfs -au
 118         if mountpoint -q /proc/nfs/nfsd
 119         then
 120             $PREFIX/sbin/exportfs -f
 121         fi
 122         echo "done."
 123         ;;
 124
 125   reload | force-reload)
 126         printf "Re-exporting directories for $DESC..."
 127         $PREFIX/sbin/exportfs -r
 128         echo "done."
 129         ;;
 130
 131   restart)
 132         $0 stop
 133         sleep 1
 134         $0 start
 135         ;;
 136
 137   *)
 138         echo "Usage: nfs-kernel-server {start|stop|reload|force-reload|restart}"
 139         exit 1
 140         ;;
 141 esac
 142
 143 exit 0