#!/bin/bash
# Copyright Daniel Dechelotte 2004
# Distributed under the terms of the GNU General Public License
# modifie par Eric Gerbier (eric.gerbier@free.fr)
# avec une contribution de Dominique Launay
# version 1.3 du 13/03/2004


if [ "x$ACTION" != "xadd" ]; then
    exit 0
fi

USBSTORAGE_CONF_FILE=/etc/hotplug/usb/usb-storage.conf
if [ ! -f $USBSTORAGE_CONF_FILE ]; then
    exit 0
fi

NAME_SPEC="periph"
MOUNT_SPEC="montage"
USE_DEFAULT_MOUNTPOINTS=yes

FOUND_NAME=
## IFS=/ echo $PRODUCT | read vendID prodID devID
vendID=$(echo $PRODUCT | cut -f1 -d/)
prodID=$(echo $PRODUCT | cut -f2 -d/)
devID=$(echo $PRODUCT | cut -f3 -d/)

# making vendID and prodID length to be 4
lengID=`expr length $vendID`
vendID2=$vendID
while [ $lengID -lt 4 ] 
do
   vendID2="0"$vendID2
   lengID=`expr length $vendID2`
done
lengID=`expr length $prodID`
prodID2=$prodID
while [ $lengID -lt 4 ] 
do
   prodID2="0"$prodID2
   lengID=`expr length $prodID2`
done


logger -i -t usb-storage-custom "PRODUCT=$PRODUCT"


while read command name vend prod garbage ; do
    if [ "x$command" != "x$NAME_SPEC" ]; then
        continue
    fi
    if [ "x$garbage" != "x" ]; then
        echo "Ignoring trailing [$garbage] at the end of $NAME_SPEC line in $USBSTORAGE_CONF_FILE" >&2
    fi
    # remove hexa prefix
    vend=$( echo $vend | sed 's/^0x0*//' )
    prod=$( echo $prod | sed 's/^0x0*//' )

    if [ "x$vend" = "x$vendID" -a "x$prod"="x$prodID" ]; then
        FOUND_NAME="$name"
	logger -i -t usb-storage-custom "found periph $name vendID=$vendID prodID=$prodID"
        break
    fi
done < $USBSTORAGE_CONF_FILE

if [ "x$FOUND_NAME" = "x" -a "x$USE_DEFAULT_MOUNTPOINTS" != "xyes" ]; then
    logger -i -t usb-storage-custom "Device not found in $USBSTORAGE_CONF_FILE. Exiting"
    exit 1
fi

FOUND_DEVICE=
for i in /proc/scsi/usb-storage-[0-9]; do
    out1=$( grep "Attached: Yes" $i/[0-9] )
    if [ -n "$out1" ]
    then
	    out2=$( grep -E "GUID: 0?${vendID2}0?${prodID2}" $i/[0-9] )
	    logger -i -t usb-storage-custom "$i : $out2"
	    if [ -n "$out2" ]
	    then
		    #num=$( ls $i )
		    num=$( echo $i | cut -f3 -d- )
		    num_device=$( echo $num | tr "0-9" "a-j" )
		    FOUND_DEVICE=/dev/sd$num_device
		    logger -i -t usb-storage-custom "found device $num $FOUND_DEVICE"
		    # force a read
		    fdisk -l $FOUND_DEVICE > /dev/null 2>&1
		    # control 
		    out3=$( grep $num_device /proc/partitions )
		    if [ -n "$out3" ]
		    then
			    logger -i -t usb-storage-custom "good device $FOUND_DEVICE (found in /proc/partitions)"
		    else
			    logger -i -t usb-storage-custom "bad device $FOUND_DEVICE (not found in /proc/partitions)"
		    fi
		    break
	    fi
    fi
done

if [ "x$FOUND_DEVICE" = "x" ]; then
    logger -i -t usb-storage-custom "Could not deduce device for $FOUND_NAME"
    exit 1
fi

if [ "x$FOUND_NAME" != "x" ]; then
    while read command name mount_point device options; do
        if [ "x$command" != "x$MOUNT_SPEC" ]; then
            continue
        fi
        if [ "x$name" != "x$FOUND_NAME" ]; then
            continue
        fi
	logger -i -t usb-storage-custom "found conf : $name $mount_point $device $options"
        if [ "x$device" = "x" ]; then
            $device="_DEV_1"
        fi
        if [ ! -d $mount_point ]; then
            mkdir -p $mount_point
        fi
	if [ -n "$options" ]
	then
		mount_option="-osync,$options"
	else
		mount_option="-osync"
	fi
        mount $mount_option $FOUND_DEVICE${device/_DEV_} $mount_point
	rep=$?
	logger -i -t usb-storage-custom "mount $mount_option $FOUND_DEVICE${device/_DEV_} $mount_point ; retour $rep"
        echo "umount $mount_point" >> $REMOVER
        chmod 544 $REMOVER
    done < $USBSTORAGE_CONF_FILE
else
    mount_point=/mnt/${FOUND_DEVICE/\/dev\//}1
    if [ ! -d $mount_point ]; then
        mkdir -p $mount_point
    fi
    mount -osync ${FOUND_DEVICE}1 $mount_point
    rep=$?
    logger -i -t usb-storage-custom "mount ${FOUND_DEVICE}1 $mount_point; retour $rep"
    echo "umount $mount_point" >> $REMOVER
    chmod 544 $REMOVER    
fi