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caf6f41e2e
This is necessary because this test relies on switching the root fs to an empty one which does not have a Nix store available in stage 1, therefore, we have to make this test host-store only. A better fix in the long term is to evaluate whether this is worth to enable a proper Nix store image for it with EROFS?
103 lines
3.4 KiB
Nix
103 lines
3.4 KiB
Nix
{ system ? builtins.currentSystem
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, config ? {}
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, pkgs ? import ../.. {inherit system config; }
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, systemdStage1 ? false }:
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import ./make-test-python.nix ({ lib, pkgs, ... }: let
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keyfile = pkgs.writeText "luks-keyfile" ''
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MIGHAoGBAJ4rGTSo/ldyjQypd0kuS7k2OSsmQYzMH6TNj3nQ/vIUjDn7fqa3slt2
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gV6EK3TmTbGc4tzC1v4SWx2m+2Bjdtn4Fs4wiBwn1lbRdC6i5ZYCqasTWIntWn+6
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FllUkMD5oqjOR/YcboxG8Z3B5sJuvTP9llsF+gnuveWih9dpbBr7AgEC
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'';
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in {
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name = "initrd-luks-empty-passphrase";
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nodes.machine = { pkgs, ... }: {
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virtualisation = {
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emptyDiskImages = [ 512 ];
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useBootLoader = true;
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useEFIBoot = true;
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# This requires to have access
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# to a host Nix store as
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# the new root device is /dev/vdb
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# an empty 512MiB drive, containing no Nix store.
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mountHostNixStore = true;
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};
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boot.loader.systemd-boot.enable = true;
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boot.initrd.systemd = lib.mkIf systemdStage1 {
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enable = true;
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emergencyAccess = true;
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};
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environment.systemPackages = with pkgs; [ cryptsetup ];
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specialisation.boot-luks-wrong-keyfile.configuration = {
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boot.initrd.luks.devices = lib.mkVMOverride {
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cryptroot = {
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device = "/dev/vdb";
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keyFile = "/etc/cryptroot.key";
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tryEmptyPassphrase = true;
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fallbackToPassword = !systemdStage1;
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};
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};
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virtualisation.rootDevice = "/dev/mapper/cryptroot";
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boot.initrd.secrets."/etc/cryptroot.key" = keyfile;
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};
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specialisation.boot-luks-missing-keyfile.configuration = {
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boot.initrd.luks.devices = lib.mkVMOverride {
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cryptroot = {
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device = "/dev/vdb";
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keyFile = "/etc/cryptroot.key";
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tryEmptyPassphrase = true;
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fallbackToPassword = !systemdStage1;
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};
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};
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virtualisation.rootDevice = "/dev/mapper/cryptroot";
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};
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};
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testScript = ''
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# Encrypt key with empty key so boot should try keyfile and then fallback to empty passphrase
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def grub_select_boot_luks_wrong_key_file():
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"""
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Selects "boot-luks" from the GRUB menu
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to trigger a login request.
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"""
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machine.send_monitor_command("sendkey down")
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machine.send_monitor_command("sendkey down")
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machine.send_monitor_command("sendkey ret")
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def grub_select_boot_luks_missing_key_file():
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"""
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Selects "boot-luks" from the GRUB menu
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to trigger a login request.
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"""
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machine.send_monitor_command("sendkey down")
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machine.send_monitor_command("sendkey ret")
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# Create encrypted volume
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machine.wait_for_unit("multi-user.target")
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machine.succeed("echo "" | cryptsetup luksFormat /dev/vdb --batch-mode")
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machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks-wrong-keyfile.conf")
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machine.succeed("sync")
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machine.crash()
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# Check if rootfs is on /dev/mapper/cryptroot
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machine.wait_for_unit("multi-user.target")
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assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
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# Choose boot-luks-missing-keyfile specialisation
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machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks-missing-keyfile.conf")
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machine.succeed("sync")
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machine.crash()
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# Check if rootfs is on /dev/mapper/cryptroot
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machine.wait_for_unit("multi-user.target")
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assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
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'';
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})
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