mount-crypt

#!/bin/sh

if [ $# -ne 3 ];then
    echo "Usage: $0 <mount|unmount> <crypt-volume> <target-name>"
    exit 0
fi

ACTION=$1
SRC=$2
TARGET=$3

TARGET_PATH=/media/$TARGET

case $ACTION in 
    mount) 
        mkdir $TARGET_PATH
        LOOP=`losetup --show --find $SRC`
        tcplay --map=$TARGET --device=$LOOP
        mount /dev/mapper/$TARGET $TARGET_PATH
        ;;
    unmount)
        umount $TARGET_PATH
        sleep 1
        dmsetup remove $TARGET
        sleep 1
        LOOP=`losetup -n --output NAME -j $SRC`
        losetup -d $LOOP
        rmdir $TARGET_PATH
        ;;
    *) exit 1
esac