pyrox.dev
1{ system ? builtins.currentSystem
2, config ? {}
3, pkgs ? import ../.. {inherit system config; }
4, systemdStage1 ? false }:
5import ./make-test-python.nix ({ lib, pkgs, ... }: let
6
7 keyfile = pkgs.writeText "luks-keyfile" ''
8 MIGHAoGBAJ4rGTSo/ldyjQypd0kuS7k2OSsmQYzMH6TNj3nQ/vIUjDn7fqa3slt2
9 gV6EK3TmTbGc4tzC1v4SWx2m+2Bjdtn4Fs4wiBwn1lbRdC6i5ZYCqasTWIntWn+6
10 FllUkMD5oqjOR/YcboxG8Z3B5sJuvTP9llsF+gnuveWih9dpbBr7AgEC
11 '';
12
13in {
14 name = "initrd-luks-empty-passphrase";
15
16 nodes.machine = { pkgs, ... }: {
17 imports = lib.optionals (!systemdStage1) [ ./common/auto-format-root-device.nix ];
18
19 virtualisation = {
20 emptyDiskImages = [ 512 ];
21 useBootLoader = true;
22 useEFIBoot = true;
23 # This requires to have access
24 # to a host Nix store as
25 # the new root device is /dev/vdb
26 # an empty 512MiB drive, containing no Nix store.
27 mountHostNixStore = true;
28 fileSystems."/".autoFormat = lib.mkIf systemdStage1 true;
29 };
30
31 boot.loader.systemd-boot.enable = true;
32 boot.initrd.systemd = lib.mkIf systemdStage1 {
33 enable = true;
34 emergencyAccess = true;
35 };
36 environment.systemPackages = with pkgs; [ cryptsetup ];
37
38 specialisation.boot-luks-wrong-keyfile.configuration = {
39 boot.initrd.luks.devices = lib.mkVMOverride {
40 cryptroot = {
41 device = "/dev/vdb";
42 keyFile = "/etc/cryptroot.key";
43 tryEmptyPassphrase = true;
44 fallbackToPassword = !systemdStage1;
45 };
46 };
47 virtualisation.rootDevice = "/dev/mapper/cryptroot";
48 boot.initrd.secrets."/etc/cryptroot.key" = keyfile;
49 };
50
51 specialisation.boot-luks-missing-keyfile.configuration = {
52 boot.initrd.luks.devices = lib.mkVMOverride {
53 cryptroot = {
54 device = "/dev/vdb";
55 keyFile = "/etc/cryptroot.key";
56 tryEmptyPassphrase = true;
57 fallbackToPassword = !systemdStage1;
58 };
59 };
60 virtualisation.rootDevice = "/dev/mapper/cryptroot";
61 };
62 };
63
64 testScript = ''
65 # Encrypt key with empty key so boot should try keyfile and then fallback to empty passphrase
66
67
68 def grub_select_boot_luks_wrong_key_file():
69 """
70 Selects "boot-luks" from the GRUB menu
71 to trigger a login request.
72 """
73 machine.send_monitor_command("sendkey down")
74 machine.send_monitor_command("sendkey down")
75 machine.send_monitor_command("sendkey ret")
76
77 def grub_select_boot_luks_missing_key_file():
78 """
79 Selects "boot-luks" from the GRUB menu
80 to trigger a login request.
81 """
82 machine.send_monitor_command("sendkey down")
83 machine.send_monitor_command("sendkey ret")
84
85 # Create encrypted volume
86 machine.wait_for_unit("multi-user.target")
87 machine.succeed("echo "" | cryptsetup luksFormat /dev/vdb --batch-mode")
88 machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks-wrong-keyfile.conf")
89 machine.succeed("sync")
90 machine.crash()
91
92 # Check if rootfs is on /dev/mapper/cryptroot
93 machine.wait_for_unit("multi-user.target")
94 assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
95
96 # Choose boot-luks-missing-keyfile specialisation
97 machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks-missing-keyfile.conf")
98 machine.succeed("sync")
99 machine.crash()
100
101 # Check if rootfs is on /dev/mapper/cryptroot
102 machine.wait_for_unit("multi-user.target")
103 assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
104 '';
105})