175 lines
4.9 KiB
Bash
175 lines
4.9 KiB
Bash
#!/usr/bin/env bash
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rbtohex() {
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( od -An -vtx1 | tr -d ' \n' )
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}
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hextorb() {
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( tr '[:lower:]' '[:upper:]' | sed -e 's/\([0-9A-F]\{2\}\)/\\\\\\x\1/gI'| xargs printf )
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}
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# Setup
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# nix-env -i gcc-wrapper
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# nix-env -i yubikey-personalization
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# nix-env -i openssl
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# Use nix-shell https://github.com/sgillespie/nixos-yubikey-luks/archive/master.tar.gz
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# Compile correct version of OpenSSL key derivation
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cc -O3 -I$(nix-build "<nixpkgs>" --no-build-output -A openssl.dev)/include -L$(nix-build "<nixpkgs>" --no-build-output -A openssl.out)/lib $(nix eval "(with import <nixpkgs> {}; pkgs.path)")/nixos/modules/system/boot/pbkdf2-sha512.c -o ./pbkdf2-sha512 -lcrypto
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# Yubikey Setup
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SLOT=2
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# ykpersonalize -"$SLOT" -ochal-resp -ochal-hmac
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SALT_LENGTH=16
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salt="$(dd if=/dev/random bs=1 count=$SALT_LENGTH 2>/dev/null | rbtohex)"
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k_user=PASSWORDCHANGEMEPLAEASES
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challenge="$(echo -n $salt | openssl dgst -binary -sha512 | rbtohex)"
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response="$(ykchalresp -2 -x $challenge 2>/dev/null)"
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# Setup LUKS device
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KEY_LENGTH=512
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ITERATIONS=1000000
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k_luks="$(echo -n $k_user | ./pbkdf2-sha512 $(($KEY_LENGTH / 8)) $ITERATIONS $response | rbtohex)"
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EFI_PART=/dev/sda1
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LUKS_PART=/dev/sda2
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EFI_MNT=/boot/
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mkdir -p "$EFI_MNT"
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mkfs.fat -F 32 -n boot "$EFI_PART"
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mount "$EFI_PART" "$EFI_MNT"
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STORAGE=/crypt-storage/default
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mkdir -p "$(dirname $EFI_MNT$STORAGE)"
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echo -ne "$salt\n$ITERATIONS" > $EFI_MNT$STORAGE
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CIPHER=aes-xts-plain64
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HASH=sha512
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echo -n "$k_luks" | hextorb | cryptsetup luksFormat --cipher="$CIPHER" --key-size="$KEY_LENGTH" --hash="$HASH" --key-file=- "$LUKS_PART"
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umount "$EFI_MNT"
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# LVM Setup
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LUKSROOT=crypthome
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echo -n "$k_luks" | hextorb | cryptsetup luksOpen $LUKS_PART $LUKSROOT --key-file=-
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pvcreate "/dev/mapper/$LUKSROOT"
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VGNAME=partitions
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vgcreate "$VGNAME" "/dev/mapper/$LUKSROOT"
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lvcreate -L 2G -n swap "$VGNAME"
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FSROOT=fsroot
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lvcreate -l 100%FREE -n "$FSROOT" "$VGNAME"
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vgchange -ay
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mkswap -L swap /dev/partitions/swap
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# BTRFS Setup
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mkfs.btrfs -L "$FSROOT" "/dev/partitions/$FSROOT"
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# incase the above breaks
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#mkdir /mnt-root
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#touch /mnt-root/nix-store.squashfs
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mount "/dev/partitions/$FSROOT" /mnt
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cd /mnt || exit
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btrfs subvolume create root
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btrfs subvolume create home
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cd
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umount /mnt
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mount -o subvol=root "/dev/partitions/$FSROOT" /mnt
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mkdir /mnt/home
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mount -o subvol=home "/dev/partitions/$FSROOT" /mnt/home
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mkdir /mnt/boot
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mount "$EFI_PART" /mnt/boot
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swapon /dev/partitions/swap
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# Install NixOS
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nixos-generate-config --root /mnt
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# Change the config
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cat > /mnt/etc/nixos/configuration.nix <<'endmsg'
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{ config, pkgs, ... }:
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{
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imports =
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[ # Include the results of the hardware scan.
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./hardware-configuration.nix
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];
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boot.loader.grub.enable = true;
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boot.loader.grub.version = 2;
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# Define on which hard drive you want to install Grub.
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boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
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# Minimal list of modules to use the EFI system partition and the YubiKey
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boot.initrd.kernelModules = [ "vfat" "nls_cp437" "nls_iso8859-1" "usbhid" ];
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# Enable support for the YubiKey PBA
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boot.initrd.luks.yubikeySupport = true;
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# Configuration to use your Luks device
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boot.initrd.luks.devices = {
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"crypthome" = {
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device = "/dev/sda2";
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preLVM = true; # You may want to set this to false if you need to start a network service first
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yubikey = {
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slot = 2;
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twoFactor = true; # Set to false if you did not set up a user password.
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storage = {
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device = "/dev/sda1";
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};
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};
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};
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};
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# Enable Flakes
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nix = {
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package = pkgs.nixUnstable;
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extraOptions = ''
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experimental-features = nix-command flakes
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'';
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};
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networking.hostName = "curve"; # Define your hostname.
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networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
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time.timeZone = "Australia/Brisbane";
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networking.useDHCP = false;
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networking.interfaces.enp0s31f6.useDHCP = true;
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networking.interfaces.wlp3s0.useDHCP = true;
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# Select internationalisation properties.
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i18n.defaultLocale = "en_US.UTF-8";
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# console = {
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# font = "Lat2-Terminus16";
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# keyMap = "us";
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# };
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services.xserver.layout = "us,dvorak";
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sound.enable = true;
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hardware.pulseaudio.enable = true;
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services.libinput.enable = true;
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# Hmmm maybe somewhere else?
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users.users.anish = {
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isNormalUser = true;
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extraGroups = [ "wheel" ];
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};
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# Enable the OpenSSH daemon.
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# services.openssh.enable = true;
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# This value determines the NixOS release from which the default
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# settings for stateful data, like file locations and database versions
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# on your system were taken. It‘s perfectly fine and recommended to leave
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# this value at the release version of the first install of this system.
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# Before changing this value read the documentation for this option
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# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
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system.stateVersion = "22.11"; # Did you read the comment?
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}
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endmsg
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cd /mnt || exit
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nixos-install --root /mnt
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passwd
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