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#! /usr/bin/env bash
set -euo pipefail
declare -A devices
valid_name=0
command_name=${1:-}
device_name=${2:-}
if [ -r "$HOME/.config/cs/config" ]; then
. "$HOME/.config/cs/config"
fi
#TODO: do sanity checks on mountpoints and (dm) devices
#TODO: display list of devices available, if no argument given
function open_cryptdevice() {
if [ -L "/dev/disk/by-uuid/$1" ]; then
if [ -L "/dev/mapper/$2" ]; then
echo "Crypt device has already been opened: /dev/mapper/$2"
echo "Continuing..."
else
/usr/bin/sudo /usr/bin/cryptsetup luksOpen "/dev/disk/by-uuid/$1" $2
fi
else
echo "Error: Device $2 (UUID=$1) is not available."
return 1
fi
}
function close_cryptdevice() {
/usr/bin/sudo /usr/bin/cryptsetup luksClose $1
}
function mount_cryptdevice() {
if [[ -e "/dev/mapper/$1" ]]; then
if [[ ! -d "/mnt/$1" ]]; then
sudo mkdir -p "/mnt/$1"
fi
sudo mount "/dev/mapper/$1" "/mnt/$1"
if [ -x "$HOME/.config/cs/post_mount/$1" ]; then
"$HOME/.config/cs/post_mount/$1"
fi
else
echo "Error: Device /dev/mapper/$1 is not available."
return 1
fi
}
function unmount_cryptdevice() {
if [ -x "$HOME/.config/cs/pre_umount/$1" ]; then
"$HOME/.config/cs/pre_umount/$1"
fi
/usr/bin/sudo /usr/bin/umount /mnt/$1
}
function validate_cryptdevice_name() {
local _result_valid_name=$1
local name_found=0
local input_name=${2:-}
for name in "${!devices[@]}"; do
if [ $name = "${input_name}" ]; then
name_found=1
eval $_result_valid_name="'$name_found'"
fi
done
}
validate_cryptdevice_name valid_name ${device_name}
if [ $valid_name -eq 0 ]; then
echo "No such device: '$device_name'!"
exit 1
fi
case $1 in
"open")
open_cryptdevice ${devices[${2}]} $2
mount_cryptdevice $2
;;
"close")
unmount_cryptdevice $2
close_cryptdevice $2
;;
*)
echo "cs only understands 'open' and 'close'."
exit 1
;;
esac
exit 0
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