#!/bin/sh
# BasOS Jan 2006  
#
# Script for usbmount to create standard symlinks to specific partitions
# Patritions are defined in /etc/usbmount/partitions.conf setting the variable PARTITIONS
# PARTITIONS is space delimited list of partition definitions and corresponding mount points 
# A partition definition is a comma dellimited list whith a -mpoint= entry specifying the
# symlink, a -label= and/or -uuid= entry specifying a label match and/or uuid match.
#e.g. PARTITIONS="-label=lab1,-mpoint=/mnt/a -uuid=EA32-3AE4,moint=/mnt/b 
# -label=lab2,-uuid=EADE-EA34,-moint=/mnt/c"
#
# Το παρόν χρησιμοποιείται με το usbmount και εγκαθίσταται στο /etc/usbmount/mount.d
# Δημιουργεί στανταρ slinks για συγκεκριμενα partitions τα οποία ορίζονται στο 
# /etc/usbmount/partitions.conf στη μεταβλητή PARTITIONS. Η τελευταία είναι μία λίστα χωριζόμενη
# με κενά με ορισμούς partition. Καθε ορισμός partition είναι μια λίστο χωριζόμενη με κόμμα
# που περιέχει μια καταχώρηση -mpoint= για το symlink του partition , μία καταχώρηση -label=
# ή/και μια καταχώρηση -uuid= για τον προσδιορισμό του label ή/και του uuid ενος partition.
# Τα στοιχεία (label,uuid) ενός partition τα βλέπουμε με το vol_id device
# π.χ. PARTITIONS="-label=lab1,-mpoint=/mnt/a -uuid=EA32-3AE4,moint=/mnt/b 
# -label=lab2,-uuid=EADE-EA34,-moint=/mnt/c"
#
# This file is free software; the copyright holder gives unlimited
# permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
#
# v0.5
d="off";

# Log a string via the syslog facility. 2004, 2005 Martin Dickopp
log()
{
  if test $1 != "debug" || test "$d" = "on"; then
	logger -p user.$1 -t "partitionmount[$$]" -- "$2"
  fi
}

label=`/sbin/vol_id -l "$UM_DEVICE"`
uuid=`/sbin/vol_id -u "$UM_DEVICE"`
test -n "$label" || test -n "$uuid" || exit 1

if test "$d" = "on"; then
  echo "label is $label"
  echo "uuid is $uuid"
fi

if test -r /etc/usbmount/partitions.conf; then
    . /etc/usbmount/partitions.conf
else
    log warning "partitions.conf not found"
    exit 1;
fi

for v in $PARTITIONS; do
  tlabel=`echo $v | grep -o "\-label=[^,]*" | sed "s/-label=//"`;
  tuuid=`echo $v  | grep -o "\-uuid=[^,]*"  | sed "s/-uuid=//"`;
  mpoints=`echo $v | grep -o "\-mpoint=[^,]*" | sed "s/-mpoint=//"`;
  if test $d = "on"; then	
    echo "listitem is $v"
    echo "tlabel is $tlabel"
    echo "tuuid is $tuuid"
    echo "mpoints is $mpoints"
  fi
  if ! test -z "$mpoints"; then
    if (! test -z "$tlabel" && test -z "$tuuid" && test "$tlabel" = "$label") || \
     (test -z "$tlabel" && ! test -z "$tuuid" && test "$tuuid" = "$uuid") || \
     (! test -z "$tlabel" && ! test -z "$tuuid" && test "$tlabel" = "$label" && test "$tuuid" = "$uuid"); then
        for mpoint in $mpoints; do
	   (test -e "$mpoint" && log waring "$mpoint already exists. Not doing anything for $UM_MOUNTPOINT") || (ln -sf "$UM_MOUNTPOINT" "$mpoint" && log info "Created $mpoint -> $UM_MOUNTPOINT for $label $uuid")
	   if test "$d" = "on" ;then echo "Suppose to have created $mpoint -> $UM_MOUNTPOINT" ;fi
	done   
     fi
  else
    log warning "Erroneus partition description $tlabel $tuuid"
  fi
done
 
exit 0