meta-agl/recipes-core/systemd/systemd/mount.sh

   1 #!/bin/sh
   2 #
   3 # Called from udev
   4 #
   5 # Attempt to mount any added block devices and umount any removed devices
   6
   7
   8 MOUNT="/bin/mount -o ro"
   9 PMOUNT="/usr/bin/pmount"
  10 UMOUNT="/bin/umount -f"
  11 for line in `grep -h -v ^# /etc/udev/mount.blacklist /etc/udev/mount.blacklist.d/*`
  12 do
  13         if [ ` expr match "$DEVNAME" "$line" ` -gt 0 ];
  14         then
  15                 logger "udev/mount.sh" "[$DEVNAME] is blacklisted, ignoring"
  16                 exit 0
  17         fi
  18 done
  19
  20 automount() {
  21         name="`basename "$DEVNAME"`"
  22
  23         ! test -d "/run/media/$name" && mkdir -p "/run/media/$name"
  24         # Silent util-linux's version of mounting auto
  25         if [ "x`readlink $MOUNT`" = "x/bin/mount.util-linux" ] ;
  26         then
  27                 MOUNT="$MOUNT -o silent"
  28         fi
  29
  30         # If filesystem type is vfat, change the ownership group to 'disk', and
  31         # grant it with  w/r/x permissions.
  32         case $ID_FS_TYPE in
  33         vfat|fat)
  34                 MOUNT="$MOUNT -o umask=007,gid=`awk -F':' '/^disk/{print $3}' /etc/group`"
  35                 ;;
  36         # TODO
  37         *)
  38                 ;;
  39         esac
  40
  41         if ! $MOUNT -t auto $DEVNAME "/run/media/$name"
  42         then
  43                 #logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"/run/media/$name\" failed!"
  44                 rm_dir "/run/media/$name"
  45         else
  46                 logger "mount.sh/automount" "Auto-mount of [/run/media/$name] successful"
  47                 touch "/tmp/.automount-$name"
  48         fi
  49 }
  50
  51 rm_dir() {
  52         # We do not want to rm -r populated directories
  53         if test "`find "$1" | wc -l | tr -d " "`" -lt 2 -a -d "$1"
  54         then
  55                 ! test -z "$1" && rm -r "$1"
  56         else
  57                 logger "mount.sh/automount" "Not removing non-empty directory [$1]"
  58         fi
  59 }
  60
  61 # No ID_FS_TYPE for cdrom device, yet it should be mounted
  62 name="`basename "$DEVNAME"`"
  63 [ -e /sys/block/$name/device/media ] && media_type=`cat /sys/block/$name/device/media`
  64
  65 if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && [ -n "$ID_FS_TYPE" -o "$media_type" = "cdrom" ]; then
  66         if [ -x "$PMOUNT" ]; then
  67                 $PMOUNT $DEVNAME 2> /dev/null
  68         elif [ -x $MOUNT ]; then
  69                 $MOUNT $DEVNAME 2> /dev/null
  70         fi
  71
  72         # If the device isn't mounted at this point, it isn't
  73         # configured in fstab (note the root filesystem can show up as
  74         # /dev/root in /proc/mounts, so check the device number too)
  75         if expr $MAJOR "*" 256 + $MINOR != `stat -c %d /`; then
  76                 grep -q "^$DEVNAME " /proc/mounts || automount
  77         fi
  78 fi
  79
  80
  81 if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
  82         for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
  83         do
  84                 $UMOUNT $mnt
  85         done
  86
  87         # Remove empty directories from auto-mounter
  88         name="`basename "$DEVNAME"`"
  89         test -e "/tmp/.automount-$name" && rm_dir "/run/media/$name"
  90 fi