From 82df70eff06e7b44ee84283070d7f801f7fc1d92 Mon Sep 17 00:00:00 2001
From: Sam Chudnick <sam@chudnick.com>
Date: Sat, 6 Nov 2021 20:25:45 -0400
Subject: initial commit

---
 .local/bin/cryptusb/create-cryptusb | 34 ++++++++++++++++++++++++++++++++++
 .local/bin/cryptusb/handle-cryptusb |  8 ++++++++
 .local/bin/cryptusb/mount-cryptusb  |  5 +++++
 .local/bin/cryptusb/sync-cryptusb   |  6 ++++++
 .local/bin/cryptusb/umount-cryptusb |  5 +++++
 5 files changed, 58 insertions(+)
 create mode 100755 .local/bin/cryptusb/create-cryptusb
 create mode 100755 .local/bin/cryptusb/handle-cryptusb
 create mode 100755 .local/bin/cryptusb/mount-cryptusb
 create mode 100755 .local/bin/cryptusb/sync-cryptusb
 create mode 100755 .local/bin/cryptusb/umount-cryptusb

(limited to '.local/bin/cryptusb')

diff --git a/.local/bin/cryptusb/create-cryptusb b/.local/bin/cryptusb/create-cryptusb
new file mode 100755
index 0000000..e0f49fe
--- /dev/null
+++ b/.local/bin/cryptusb/create-cryptusb
@@ -0,0 +1,34 @@
+#!/bin/sh
+# Prompts for and creates a LUKS encrypted partition on a device
+
+# Get disks connected to the system that are hotpluggable (USBs)
+devices="$(lsblk -lp -o NAME,SIZE,HOTPLUG,TYPE | grep "1 disk" | awk '{print $1,"-",$2}')"
+[ "$devices" = "" ] && echo "no devices available" && exit 0
+
+# Prompt for device selection from the user
+select=$(echo "$devices" | dmenu -i -p "Select a device")
+[ "$select" = "" ] && echo "no device selected" && exit 0
+
+# Get confirmation since this is a potentially dangerous operation
+yn=$(echo "No\nYes" | dmenu -i -p "Create encrypted partition on $select")
+[ "$yn" != "Yes" ] && exit 0
+
+# Get device path from selection string
+usb=$(echo $select | cut -d ' ' -f 1)
+echo $usb
+
+# Create LUKS partition on selected device (user will be promted for password to encrypt)
+sudo cryptsetup --type luks2 luksFormat "$usb"
+
+# Open device and create filesystem on partition
+echo "creating filesystem"
+map_name="crypt-create"
+sudo cryptsetup open "$usb" "$map_name"
+sudo mkfs.ext4 "/dev/mapper/$map_name"
+
+# Close device after creating filesystem
+sudo cryptsetup close "$map_name"
+
+echo "done"
+
+
diff --git a/.local/bin/cryptusb/handle-cryptusb b/.local/bin/cryptusb/handle-cryptusb
new file mode 100755
index 0000000..63d6ef4
--- /dev/null
+++ b/.local/bin/cryptusb/handle-cryptusb
@@ -0,0 +1,8 @@
+#!/bin/sh
+# Single script for easy handling of encrypted USB
+# Calls mount, sync, and umount scripts to automatically handle what is commonly
+# run for encrypted USBs
+
+mount-cryptusb && notify-send "Encrypted USB mounted"
+sync-cryptusb && notify-send "Encrypted USB synced" 
+umount-cryptusb && notify-send "Encrypted USB unmounted"
diff --git a/.local/bin/cryptusb/mount-cryptusb b/.local/bin/cryptusb/mount-cryptusb
new file mode 100755
index 0000000..882734c
--- /dev/null
+++ b/.local/bin/cryptusb/mount-cryptusb
@@ -0,0 +1,5 @@
+#!/bin/sh
+# Mounts LUKS encrypted USB
+
+sudo cryptsetup open /dev/sdc cryptusb
+sudo mount /dev/mapper/cryptusb /mnt/cryptusb
diff --git a/.local/bin/cryptusb/sync-cryptusb b/.local/bin/cryptusb/sync-cryptusb
new file mode 100755
index 0000000..e9d3f1a
--- /dev/null
+++ b/.local/bin/cryptusb/sync-cryptusb
@@ -0,0 +1,6 @@
+#!/bin/sh
+# Syncs important files to encrypted USB
+
+rsync -avP --exclude=".steam*" --exclude="virtual_machines*" --exclude="media*" \
+		--exclude="*.iso" --exclude="*.qcow2" \
+		$HOME/ /mnt/cryptusb/$USER@$(hostname)/
diff --git a/.local/bin/cryptusb/umount-cryptusb b/.local/bin/cryptusb/umount-cryptusb
new file mode 100755
index 0000000..c3c4b93
--- /dev/null
+++ b/.local/bin/cryptusb/umount-cryptusb
@@ -0,0 +1,5 @@
+#!/bin/sh
+# Unmounts LUKS encrypted USB
+
+sudo umount /mnt/cryptusb
+sudo cryptsetup close cryptusb
-- 
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