Initial repository created with an already working version of cryptobox and a simple README

README

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+Cryptobox is a script licensed under the GPLv3, that uses cryptosetup, mkfs and losetup to easily create, mount and unmount encrypted image files based on LUKS.
+
+Install cryptobox to $PATH and run 'cryptobox' for a list of commands

cryptobox

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+#!/bin/sh
+
+# --------------------------------------------------- #
+#                      cryptobox                      #
+# --------------------------------------------------- #
+# cryptobox is a script used with cryptosetup, mkfs   #
+# and losetup, designed to create, mount and umount   #
+# encrypted disk images.                              #
+#                                                     #
+# Developer: Prurigro                                 #
+# Contact: prurigro at gmail dot com                  #
+# Version: 1.0                                        #
+#                                                     #
+# If you find this script useful but have ideas about #
+# how to make it better, found bugs, need help using  #
+# it or anything else; feel free to contect me.       #
+#                                                     #
+# Distributed under the GPLv3; copies can be obtained #
+# on gnu.org @ http://www.gnu.org/copyleft/gpl.html   #
+# --------------------------------------------------- #
+
+NAME="cryptobox"
+
+if [ $(lsmod | grep -c loop) = 0 ]; then echo "loading 'loop' module"; modprobe loop || echo "failed to load 'loop' module" && exit 1; fi
+if [ $(lsmod | grep -c dm_mod) = 0 ]; then echo "loading 'dm_mod' module"; modprobe dm_mod || echo "failed to load 'dm_mod' module" && exit 1; fi
+
+function usage {
+    echo "Usage: '$NAME option arguments'"
+    echo "Options:"
+    echo -e "\tc (create) -> $NAME c filename.img filesystem size-in-mb"
+    echo -e "\tm (mount) -> $NAME m filename.img /mount/point"
+    echo -e "\tu (umount) -> $NAME u /mount/point"
+}
+
+if [ -z "$1" ]; then
+    usage
+    exit 1
+elif [ ! "$1" = "c" -a ! "$1" = "m" -a ! "$1" = "u" ]; then
+    echo "syntax error"
+    usage
+    exit 1
+fi
+
+case "$1" in
+    "c")
+        if [ -z "$2" -o -z "$3" -o -z "$4" ]; then
+            echo "syntax error"
+            usage
+            exit 1
+        fi
+        if [ -f "$2" ]; then
+            echo "error: $2 already exists"
+            exit 1
+        fi
+        LOOPDEV=$(losetup -f)
+        CONTAINER=$(echo "$2" | sed s/"[^\/]*\/"//g | sed s/"\.".*$//g)
+        dd bs=1M count="$4" if=/dev/urandom of="$2"
+        losetup $LOOPDEV "$2"
+        cryptsetup -c aes-xts-plain -y -s 512 luksFormat $LOOPDEV
+        cryptsetup luksOpen $LOOPDEV $CONTAINER
+        mkfs -t "$3" /dev/mapper/$CONTAINER || echo "error: mkfs failed for filesystem type: $3"
+        cryptsetup luksClose $CONTAINER
+        losetup -d $LOOPDEV
+        ;;
+    "m")
+        if [ -z "$2" -o -z "$3" ]; then
+            echo "syntax error"
+            usage
+            exit 1
+        fi
+        if [ ! -f "$2" ]; then
+            echo "error: $2 does not exist"
+            exit 1
+        fi
+        if [ ! -d "$3" ]; then
+            echo "error: $3 does not exist"
+            exit 1
+        fi
+        LOOPDEV=$(losetup -f)
+        CONTAINER=$(echo $LOOPDEV | sed s/"[^\/]*\/"//g | sed s/"\.".*$//g)
+        losetup $LOOPDEV "$2"
+        cryptsetup luksOpen $LOOPDEV $CONTAINER
+        mount /dev/mapper/$CONTAINER "$3"
+        ;;
+    "u")
+        if [ -z "$2" ]; then
+            echo "syntax error"
+            usage
+            exit 1
+        fi
+        MOUNT=$(mount | grep $(echo "$2" | sed s/"\/"$//))
+        if [ -z "$MOUNT" ]; then
+            echo "error: $2 is not mounted"
+            exit 1
+        fi
+        LOOPDEV=$(echo $MOUNT | sed s/\ .*//g | sed s/"\/mapper"//)
+        CONTAINER=$(echo $LOOPDEV | sed s/"[^\/]*\/"//g | sed s/"\.".*$//g)
+        umount "$2"
+        cryptsetup luksClose $CONTAINER
+        losetup -d $LOOPDEV
+        ;;
+    generic)
+        usage
+        ;;
+esac