From 3d52b2129312d5a91bb9619d78e0578c98f31547 Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Thu, 30 Mar 2023 22:18:53 +0200
Subject: add hooks

---
 Makefile    |  7 -------
 README.md   | 12 +++---------
 config.mk   |  1 -
 elk.hook    | 27 +++++++++++++++++++++++++++
 elk.install | 10 ++++++++++
 install     | 12 ++++++++++++
 6 files changed, 52 insertions(+), 17 deletions(-)
 delete mode 100644 Makefile
 delete mode 100644 config.mk
 create mode 100644 elk.hook
 create mode 100644 elk.install
 create mode 100755 install

diff --git a/Makefile b/Makefile
deleted file mode 100644
index e701613..0000000
--- a/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-include config.mk
-
-install:
-	sed ./keyusbctl -e "s/\[USB_UUID\]/${USB_UUID}/g" > /usr/local/sbin/keyusbctl
-	cp ./usb-unplug.rules /etc/udev/rules.d/
-	chmod +x /usr/local/sbin/keyusbctl
-	@echo type 'udevadm control --reload' to reload the udev rules
diff --git a/README.md b/README.md
index 6f39d5a..969091d 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,10 @@
-# SecKey
+# Extern Luks Key
 
 This project is intended to be used when your system
-uses a usb-drive to decrypt your system's root drive.
-
-If you want that if you plug out the stick your system shuts down
-you are at the right place here.
+uses an encrypted usb-drive to decrypt your system's root drive.
 
 ## Install
 
-Edit the `config.mk` and insert the UUID of your usb-drive.
-Then type:
-
 ```sh
-sudo make install
+./install [UUID]
 ```
diff --git a/config.mk b/config.mk
deleted file mode 100644
index 8387d6d..0000000
--- a/config.mk
+++ /dev/null
@@ -1 +0,0 @@
-USB_UUID=YOUR_UUID_HERE
diff --git a/elk.hook b/elk.hook
new file mode 100644
index 0000000..d5cbabf
--- /dev/null
+++ b/elk.hook
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+run_hook() {
+	echo '▄▄▄▄▄▄▄▄  ▄▄▄▄      ▄▄'
+	echo '██▀▀▀▀▀▀  ▀▀██      ██'
+	echo '██          ██      ██ ▄██▀'
+	echo '███████     ██      ██▄██'
+	echo '██          ██      ██▀██▄'
+	echo '██▄▄▄▄▄▄    ██▄▄▄   ██  ▀█▄'
+	echo '▀▀▀▀▀▀▀▀     ▀▀▀▀   ▀▀   ▀▀▀'
+	echo
+	modprobe -a -q dm-crypt >/dev/null 2>&1
+
+	if [ ! -e "/dev/disk/by-uuid/${authusbuuid}" ]; then
+		printf "AuthUSB not found, please plug it in...\r"
+
+		while [ ! -e "/dev/disk/by-uuid/${authusbuuid}" ]; do
+			sleep 0.1
+		done
+	fi
+
+	stty -echo
+	printf "Enter Decryption Password: "
+	read password
+	stty echo
+	printf "$password" | cryptsetup open "/dev/disk/by-uuid/${authusbuuid}" authkeys
+}
diff --git a/elk.install b/elk.install
new file mode 100644
index 0000000..74026df
--- /dev/null
+++ b/elk.install
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+help() {
+	echo This hook allows you to use a keyfile on a usb stick which is encrypted.
+}
+
+build() {
+	add_binary /bin/stty
+	add_runscript usbkey
+}
diff --git a/install b/install
new file mode 100755
index 0000000..5ee5f42
--- /dev/null
+++ b/install
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+USB_UUID="$1"
+
+[ -z "$USB_UUID" ] && echo ./install [UUID] && exit
+
+sed ./keyusbctl -e "s/\[USB_UUID\]/${USB_UUID}/g" > /usr/local/sbin/keyusbctl
+cp ./usb-unplug.rules /etc/udev/rules.d/
+cp ./elk.hook /etc/initcpio/hooks/elk
+cp ./elk.install /etc/initcpio/install/elk
+chmod +x /usr/local/sbin/keyusbctl
+echo type 'udevadm control --reload' to reload the udev rules
-- 
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