debian/src/initscripts/etc/init.d/umountnfs.sh

   1 #! /bin/sh
   2 ### BEGIN INIT INFO
   3 # Provides:          umountnfs
   4 # Required-Start:
   5 # Required-Stop:     umountfs
   6 # Should-Stop:       $network $portmap nfs-common
   7 # Default-Start:
   8 # Default-Stop:      0 6
   9 # Short-Description: Unmount all network filesystems except the root fs.
  10 # Description:       Also unmounts all virtual filesystems (proc, devfs,
  11 #                    devpts, usbfs, sysfs) that are not mounted at the
  12 #                    top level.
  13 ### END INIT INFO
  14
  15 PATH=/sbin:/usr/sbin:/bin:/usr/bin
  16 KERNEL="$(uname -s)"
  17 RELEASE="$(uname -r)"
  18 . /lib/init/vars.sh
  19
  20 . /lib/lsb/init-functions
  21
  22 case "${KERNEL}:${RELEASE}" in
  23   Linux:[01].*|Linux:2.[01].*)
  24         FLAGS=""
  25         ;;
  26   Linux:2.[23].*|Linux:2.4.?|Linux:2.4.?-*|Linux:2.4.10|Linux:2.4.10-*)
  27         FLAGS="-f"
  28         ;;
  29   *)
  30         FLAGS="-f -l"
  31         ;;
  32 esac
  33
  34 do_stop () {
  35         # Write a reboot record to /var/log/wtmp before unmounting
  36         halt -w
  37
  38         # Remove bootclean flag files (precaution against symlink attacks)
  39         rm -f /tmp/.clean /var/lock/.clean /var/run/.clean
  40
  41         #
  42         # Make list of points to unmount in reverse order of their creation
  43         #
  44
  45         exec 9<&0 </etc/mtab
  46
  47         DIRS=""
  48         while read -r DEV MTPT FSTYPE OPTS REST
  49         do
  50                 case "$MTPT" in
  51                   /|/proc|/dev|/dev/pts|/dev/shm|/proc/*|/sys|/lib/init/rw)
  52                         continue
  53                         ;;
  54                   /var/run)
  55                         if [ yes = "$RAMRUN" ] ; then
  56                                 continue
  57                         fi
  58                         ;;
  59                   /var/lock)
  60                         if [ yes = "$RAMLOCK" ] ; then
  61                                 continue
  62                         fi
  63                         ;;
  64                 esac
  65                 case "$FSTYPE" in
  66                   nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs)
  67                         DIRS="$MTPT $DIRS"
  68                         ;;
  69                   proc|procfs|linprocfs|devfs|devpts|usbfs|usbdevfs|sysfs)
  70                         DIRS="$MTPT $DIRS"
  71                         ;;
  72                 esac
  73                 case "$OPTS" in
  74                   _netdev|*,_netdev|_netdev,*|*,_netdev,*)
  75                         DIRS="$MTPT $DIRS"
  76                         ;;
  77                 esac
  78         done
  79
  80         exec 0<&9 9<&-
  81
  82         if [ "$DIRS" ]
  83         then
  84                 [ "$VERBOSE" = no ] || log_action_begin_msg "Unmounting remote and non-toplevel virtual filesystems"
  85                 fstab-decode umount $FLAGS $DIRS
  86                 ES=$?
  87                 [ "$VERBOSE" = no ] || log_action_end_msg $ES
  88         fi
  89
  90         # emit unmounted-remote-filesystems hook point so any upstart jobs
  91         # that support remote filesystems can be stopped
  92         initctl --quiet emit unmounted-remote-filesystems
  93 }
  94
  95 case "$1" in
  96   start)
  97         # No-op
  98         ;;
  99   restart|reload|force-reload)
 100         echo "Error: argument '$1' not supported" >&2
 101         exit 3
 102         ;;
 103   stop|"")
 104         do_stop
 105         ;;
 106   *)
 107         echo "Usage: umountnfs.sh [start|stop]" >&2
 108         exit 3
 109         ;;
 110 esac
 111
 112 :