Merge pull request #323 from nix-community/refactor-tests
Refactor tests
This commit is contained in:
nikstur
GitHub
commit
19ad7fd572
33
flake.nix
33
flake.nix
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@ -197,27 +197,18 @@
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inherit (config.packages) tool;
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};
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checks =
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let
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nixosLib = import (pkgs.path + "/nixos/lib") { };
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runTest = module: nixosLib.runTest {
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imports = [ module ];
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hostPkgs = pkgs;
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};
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in
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{
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toolClippy = toolCrane.clippy;
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stubClippy = stubCrane.clippy;
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fatStubClippy = fatStubCrane.clippy;
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toolFmt = toolCrane.rustfmt;
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stubFmt = stubCrane.rustfmt;
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} // (import ./nix/tests/lanzaboote.nix {
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inherit pkgs;
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lanzabooteModule = self.nixosModules.lanzaboote;
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}) // (import ./nix/tests/stub.nix {
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inherit pkgs runTest;
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ukiModule = self.nixosModules.uki;
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});
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checks = {
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toolClippy = toolCrane.clippy;
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stubClippy = stubCrane.clippy;
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fatStubClippy = fatStubCrane.clippy;
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toolFmt = toolCrane.rustfmt;
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stubFmt = stubCrane.rustfmt;
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} // (import ./nix/tests {
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inherit pkgs;
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extraBaseModules = {
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inherit (self.nixosModules) lanzaboote uki;
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};
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});
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devShells.default = pkgs.mkShell {
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shellHook = ''
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@ -17,46 +17,38 @@ in
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};
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};
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config =
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let
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systemdUkify = pkgs.systemdMinimal.override {
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withEfi = true;
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withBootloader = true;
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withUkify = true;
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};
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in
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lib.mkIf cfg.enable {
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boot.bootspec.enable = true;
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boot.loader.external = {
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enable = true;
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installHook =
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let
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bootspecNamespace = ''"org.nixos.bootspec.v1"'';
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installer = pkgs.writeShellApplication {
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name = "install-uki";
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runtimeInputs = with pkgs; [ jq systemd binutils ];
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text = ''
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boot_json=/nix/var/nix/profiles/system-1-link/boot.json
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kernel=$(jq -r '.${bootspecNamespace}.kernel' "$boot_json")
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initrd=$(jq -r '.${bootspecNamespace}.initrd' "$boot_json")
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init=$(jq -r '.${bootspecNamespace}.init' "$boot_json")
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config = lib.mkIf cfg.enable {
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boot.bootspec.enable = true;
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boot.loader.external = {
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enable = true;
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installHook =
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let
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bootspecNamespace = ''"org.nixos.bootspec.v1"'';
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installer = pkgs.writeShellApplication {
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name = "install-uki";
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runtimeInputs = with pkgs; [ jq systemd binutils ];
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text = ''
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boot_json=/nix/var/nix/profiles/system-1-link/boot.json
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kernel=$(jq -r '.${bootspecNamespace}.kernel' "$boot_json")
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initrd=$(jq -r '.${bootspecNamespace}.initrd' "$boot_json")
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init=$(jq -r '.${bootspecNamespace}.init' "$boot_json")
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${systemdUkify}/lib/systemd/ukify \
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"$kernel" \
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"$initrd" \
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--stub=${cfg.stub} \
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--cmdline="init=$init ${builtins.toString config.boot.kernelParams}" \
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--os-release="@${config.system.build.etc}/etc/os-release" \
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--output=uki.efi
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${pkgs.systemdUkify}/lib/systemd/ukify \
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"$kernel" \
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"$initrd" \
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--stub=${cfg.stub} \
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--cmdline="init=$init ${builtins.toString config.boot.kernelParams}" \
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--os-release="@${config.system.build.etc}/etc/os-release" \
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--output=uki.efi
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esp=${config.boot.loader.efi.efiSysMountPoint}
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esp=${config.boot.loader.efi.efiSysMountPoint}
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bootctl install --esp-path="$esp"
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install uki.efi "$esp"/EFI/Linux/
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'';
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};
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in
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"${installer}/bin/install-uki";
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};
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bootctl install --esp-path="$esp"
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install uki.efi "$esp"/EFI/Linux/
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'';
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};
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in
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"${installer}/bin/install-uki";
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};
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};
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}
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@ -0,0 +1,35 @@
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{ pkgs, extraBaseModules }:
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let
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runTest = module: pkgs.testers.runNixOSTest {
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imports = [ module ];
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globalTimeout = 5 * 60;
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extraBaseModules = {
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imports = builtins.attrValues extraBaseModules;
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};
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};
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# Run the test only on the specified systems. Otherwise build hello to work
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# around flake behaviour.
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runTestOn = systems: module:
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if builtins.elem pkgs.system systems
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then runTest module
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else pkgs.hello;
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in
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{
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# Lanzaboote
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basic = runTest ./lanzaboote/basic.nix;
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systemd-initrd = runTest ./lanzaboote/systemd-initrd.nix;
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initrd-secrets = runTest ./lanzaboote/initrd-secrets.nix;
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initrd-secrets-update = runTest ./lanzaboote/initrd-secrets-update.nix;
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hash-mismatch = runTest ./lanzaboote/hash-mismatch.nix;
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specialisation = runTest ./lanzaboote/specialisation.nix;
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synthesis = runTestOn [ "x86_64-linux" ] ./lanzaboote/synthesis.nix;
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systemd-boot-loader-config = runTest ./lanzaboote/systemd-boot-loader-config.nix;
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export-efivars = runTest ./lanzaboote/export-efivars.nix;
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export-efivars-tpm = runTest ./lanzaboote/export-efivars-tpm.nix;
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# Stub
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systemd-stub = runTest ./stub/systemd-stub.nix;
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fat-stub = runTest ./stub/fat-stub.nix;
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}
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@ -1,444 +0,0 @@
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{ pkgs
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, lanzabooteModule
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}:
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let
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inherit (pkgs) lib system;
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defaultTimeout = 5 * 60; # = 5 minutes
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inherit (pkgs.stdenv.hostPlatform) efiArch;
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efiArchUppercased = lib.toUpper efiArch;
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mkSecureBootTest = { name, machine ? { }, useSecureBoot ? true, useTPM2 ? false, readEfiVariables ? false, testScript }:
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let
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tpmSocketPath = "/tmp/swtpm-sock";
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tpmDeviceModels = {
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x86_64-linux = "tpm-tis";
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aarch64-linux = "tpm-tis-device";
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};
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# Should go to nixpkgs.
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efiVariablesHelpers = ''
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import struct
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SD_LOADER_GUID = "4a67b082-0a4c-41cf-b6c7-440b29bb8c4f"
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def read_raw_variable(var: str) -> bytes:
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attr_var = machine.succeed(f"cat /sys/firmware/efi/efivars/{var}-{SD_LOADER_GUID}").encode('raw_unicode_escape')
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_ = attr_var[:4] # First 4 bytes are attributes according to https://www.kernel.org/doc/html/latest/filesystems/efivarfs.html
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value = attr_var[4:]
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return value
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def read_string_variable(var: str, encoding='utf-16-le') -> str:
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return read_raw_variable(var).decode(encoding).rstrip('\x00')
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# By default, it will read a 4 byte value, read `struct` docs to change the format.
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def assert_variable_uint(var: str, expected: int, format: str = 'I'):
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with subtest(f"Is `{var}` set to {expected} (uint)"):
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value, = struct.unpack(f'<{format}', read_raw_variable(var))
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assert value == expected, f"Unexpected variable value in `{var}`, expected: `{expected}`, actual: `{value}`"
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def assert_variable_string(var: str, expected: str, encoding='utf-16-le'):
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with subtest(f"Is `{var}` correctly set"):
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value = read_string_variable(var, encoding)
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assert value == expected, f"Unexpected variable value in `{var}`, expected: `{expected.encode(encoding)!r}`, actual: `{value.encode(encoding)!r}`"
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def assert_variable_string_contains(var: str, expected_substring: str):
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with subtest(f"Do `{var}` contain expected substrings"):
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value = read_string_variable(var).strip()
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assert expected_substring in value, f"Did not find expected substring in `{var}`, expected substring: `{expected_substring}`, actual value: `{value}`"
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'';
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tpm2Initialization = ''
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import subprocess
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from tempfile import TemporaryDirectory
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# From systemd-initrd-luks-tpm2.nix
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class Tpm:
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def __init__(self):
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self.state_dir = TemporaryDirectory()
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self.start()
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def start(self):
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self.proc = subprocess.Popen(["${pkgs.swtpm}/bin/swtpm",
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"socket",
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"--tpmstate", f"dir={self.state_dir.name}",
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"--ctrl", "type=unixio,path=${tpmSocketPath}",
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"--tpm2",
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])
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# Check whether starting swtpm failed
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try:
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exit_code = self.proc.wait(timeout=0.2)
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if exit_code is not None and exit_code != 0:
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raise Exception("failed to start swtpm")
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except subprocess.TimeoutExpired:
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pass
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"""Check whether the swtpm process exited due to an error"""
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def check(self):
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exit_code = self.proc.poll()
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if exit_code is not None and exit_code != 0:
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raise Exception("swtpm process died")
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tpm = Tpm()
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@polling_condition
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def swtpm_running():
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tpm.check()
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'';
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in
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pkgs.nixosTest {
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inherit name;
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globalTimeout = defaultTimeout;
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testScript = ''
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${lib.optionalString useTPM2 tpm2Initialization}
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${lib.optionalString readEfiVariables efiVariablesHelpers}
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${testScript}
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'';
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nodes.machine = { pkgs, lib, ... }: {
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imports = [
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lanzabooteModule
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machine
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];
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virtualisation = {
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useBootLoader = true;
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useEFIBoot = true;
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efi.OVMF = pkgs.OVMFFull.fd;
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qemu.options = lib.mkIf useTPM2 [
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"-chardev socket,id=chrtpm,path=${tpmSocketPath}"
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"-tpmdev emulator,id=tpm_dev_0,chardev=chrtpm"
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"-device ${tpmDeviceModels.${system}},tpmdev=tpm_dev_0"
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];
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inherit useSecureBoot;
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};
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boot.initrd.availableKernelModules = lib.mkIf useTPM2 [ "tpm_tis" ];
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boot.loader.efi = {
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canTouchEfiVariables = true;
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};
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boot.lanzaboote = {
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enable = true;
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enrollKeys = useSecureBoot;
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pkiBundle = ./fixtures/uefi-keys;
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};
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};
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};
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# Execute a boot test that has an intentionally broken secure boot
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# chain. This test is expected to fail with Secure Boot and should
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# succeed without.
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#
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# Takes a set `path` consisting of a `src` and a `dst` attribute. The file at
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# `src` is copied to `dst` inside th VM. Optionally append some random data
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# ("crap") to the end of the file at `dst`. This is useful to easily change
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# the hash of a file and produce a hash mismatch when booting the stub.
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mkHashMismatchTest = { name, appendCrapGlob, useSecureBoot ? true }: mkSecureBootTest {
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inherit name;
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inherit useSecureBoot;
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testScript = ''
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machine.start()
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machine.succeed("echo some_garbage_to_change_the_hash | tee -a ${appendCrapGlob} > /dev/null")
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machine.succeed("sync")
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machine.crash()
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machine.start()
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'' + (if useSecureBoot then ''
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machine.wait_for_console_text("hash does not match")
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'' else ''
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# Just check that the system came up.
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print(machine.succeed("bootctl", timeout=120))
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'');
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};
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# The initrd is not directly signed. Its hash is embedded into
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# lanzaboote. To make integrity verification fail, we actually have
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# to modify the initrd. Appending crap to the end is a harmless way
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# that would make the kernel still accept it.
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mkModifiedInitrdTest = { name, useSecureBoot }: mkHashMismatchTest {
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inherit name useSecureBoot;
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appendCrapGlob = "/boot/EFI/nixos/initrd-*.efi";
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};
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mkModifiedKernelTest = { name, useSecureBoot }: mkHashMismatchTest {
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inherit name useSecureBoot;
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appendCrapGlob = "/boot/EFI/nixos/kernel-*.efi";
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};
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in
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{
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# TODO: user mode: OK
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# TODO: how to get in: {deployed, audited} mode ?
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basic = mkSecureBootTest {
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name = "lanzaboote";
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testScript = ''
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machine.start()
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assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
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# We want systemd to recognize our PE binaries as true UKIs. systemd has
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# become more picky in the past, so make sure.
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assert "Kernel Type: uki" in machine.succeed("bootctl kernel-inspect /boot/EFI/Linux/nixos-generation-1-*.efi")
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'';
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};
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systemd-initrd = mkSecureBootTest {
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name = "lanzaboote-systemd-initrd";
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machine = { ... }: {
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boot.initrd.systemd.enable = true;
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};
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testScript = ''
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machine.start()
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assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
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'';
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};
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# Test that a secret is appended to the initrd during installation. Smilar to
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# the initrd-secrets test in Nixpkgs:
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# https://github.com/NixOS/nixpkgs/blob/master/nixos/tests/initrd-secrets.nix
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initrd-secrets =
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let
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secret = (pkgs.writeText "oh-so-secure" "uhh-ooh-uhh-security");
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in
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mkSecureBootTest {
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name = "lanzaboote-initrd-secrets";
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machine = { ... }: {
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boot.initrd.secrets = {
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"/test" = secret;
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};
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boot.initrd.postMountCommands = ''
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cp /test /mnt-root/secret-from-initramfs
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'';
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};
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testScript = ''
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machine.start()
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machine.wait_for_unit("multi-user.target")
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machine.succeed("cmp ${secret} /secret-from-initramfs")
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assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
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'';
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};
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# Test that the secrets configured to be appended to the initrd get updated
|
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# when installing a new generation even if the initrd itself (i.e. its store
|
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# path) does not change.
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#
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# An unfortunate result of this NixOS feature is that updating the secrets
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# without creating a new initrd might break previous generations. Verify that
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# a new initrd (which is supposed to only differ by the secrets) is created
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# in this case.
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#
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# This tests uses a specialisation to imitate a newer generation. This works
|
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# because `lzbt` installs the specialisation of a generation AFTER installing
|
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# the generation itself (thus making the specialisation "newer").
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initrd-secrets-update =
|
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let
|
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originalSecret = (pkgs.writeText "oh-so-secure" "uhh-ooh-uhh-security");
|
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newSecret = (pkgs.writeText "newly-secure" "so-much-better-now");
|
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in
|
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mkSecureBootTest {
|
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name = "lanzaboote-initrd-secrets-update";
|
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machine = { pkgs, lib, ... }: {
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boot.initrd.secrets = {
|
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"/test" = lib.mkDefault originalSecret;
|
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};
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boot.initrd.postMountCommands = ''
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cp /test /mnt-root/secret-from-initramfs
|
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'';
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specialisation.variant.configuration = {
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boot.initrd.secrets = {
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"/test" = newSecret;
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};
|
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};
|
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};
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testScript = ''
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machine.start()
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machine.wait_for_unit("multi-user.target")
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# Assert that only three boot files exists (a single kernel and a two
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# initrds).
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assert int(machine.succeed("ls -1 /boot/EFI/nixos | wc -l")) == 3
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# It is expected that the initrd contains the original secret.
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machine.succeed("cmp ${originalSecret} /secret-from-initramfs")
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|
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machine.succeed("bootctl set-default nixos-generation-1-specialisation-variant-\*.efi")
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machine.succeed("sync")
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machine.crash()
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machine.start()
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machine.wait_for_unit("multi-user.target")
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# It is expected that the initrd of the specialisation contains the new secret.
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machine.succeed("cmp ${newSecret} /secret-from-initramfs")
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'';
|
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};
|
||||
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modified-initrd-doesnt-boot-with-secure-boot = mkModifiedInitrdTest {
|
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name = "modified-initrd-doesnt-boot-with-secure-boot";
|
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useSecureBoot = true;
|
||||
};
|
||||
|
||||
modified-initrd-boots-without-secure-boot = mkModifiedInitrdTest {
|
||||
name = "modified-initrd-boots-without-secure-boot";
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useSecureBoot = false;
|
||||
};
|
||||
|
||||
modified-kernel-doesnt-boot-with-secure-boot = mkModifiedKernelTest {
|
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name = "modified-kernel-doesnt-boot-with-secure-boot";
|
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useSecureBoot = true;
|
||||
};
|
||||
|
||||
modified-kernel-boots-without-secure-boot = mkModifiedKernelTest {
|
||||
name = "modified-kernel-boots-without-secure-boot";
|
||||
useSecureBoot = false;
|
||||
};
|
||||
|
||||
specialisation-works = mkSecureBootTest {
|
||||
name = "specialisation-still-boot-under-secureboot";
|
||||
machine = { pkgs, ... }: {
|
||||
specialisation.variant.configuration = {
|
||||
environment.systemPackages = [
|
||||
pkgs.efibootmgr
|
||||
];
|
||||
};
|
||||
};
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("ls -lah /boot/EFI/Linux"))
|
||||
# TODO: make it more reliable to find this filename, i.e. read it from somewhere?
|
||||
machine.succeed("bootctl set-default nixos-generation-1-specialisation-variant-\*.efi")
|
||||
machine.succeed("sync")
|
||||
machine.fail("efibootmgr")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl"))
|
||||
# Only the specialisation contains the efibootmgr binary.
|
||||
machine.succeed("efibootmgr")
|
||||
'';
|
||||
};
|
||||
|
||||
# We test if we can install Lanzaboote without Bootspec support.
|
||||
synthesis =
|
||||
if pkgs.hostPlatform.isAarch64 then
|
||||
# FIXME: currently broken on aarch64
|
||||
#> mkfs.fat 4.2 (2021-01-31)
|
||||
#> setting up /etc...
|
||||
#> Enrolling keys to EFI variables...✓
|
||||
#> Enrolled keys to the EFI variables!
|
||||
#> Installing Lanzaboote to "/boot"...
|
||||
#> No bootable generations found! Aborting to avoid unbootable system. Please check for Lanzaboote updates!
|
||||
#> [ 2.788390] reboot: Power down
|
||||
pkgs.hello
|
||||
else
|
||||
mkSecureBootTest {
|
||||
name = "lanzaboote-synthesis";
|
||||
machine = { lib, ... }: {
|
||||
boot.bootspec.enable = lib.mkForce false;
|
||||
};
|
||||
testScript = ''
|
||||
machine.start()
|
||||
assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
|
||||
'';
|
||||
};
|
||||
|
||||
systemd-boot-loader-config = mkSecureBootTest {
|
||||
name = "lanzaboote-systemd-boot-loader-config";
|
||||
machine = {
|
||||
boot.loader.timeout = 0;
|
||||
boot.loader.systemd-boot.consoleMode = "auto";
|
||||
};
|
||||
testScript = ''
|
||||
machine.start()
|
||||
|
||||
actual_loader_config = machine.succeed("cat /boot/loader/loader.conf").split("\n")
|
||||
expected_loader_config = ["timeout 0", "console-mode auto"]
|
||||
|
||||
assert all(cfg in actual_loader_config for cfg in expected_loader_config), \
|
||||
f"Expected: {expected_loader_config} is not included in actual config: '{actual_loader_config}'"
|
||||
'';
|
||||
};
|
||||
|
||||
export-efi-variables = mkSecureBootTest {
|
||||
name = "lanzaboote-exports-efi-variables";
|
||||
machine.environment.systemPackages = [ pkgs.efibootmgr ];
|
||||
readEfiVariables = true;
|
||||
testScript = ''
|
||||
# We will choose to boot directly on the stub.
|
||||
# To perform this trick, we will boot first with systemd-boot.
|
||||
# Then, we will add a new boot entry in EFI with higher priority
|
||||
# pointing to our stub.
|
||||
# Finally, we will reboot.
|
||||
# We will also assert that systemd-boot is not running
|
||||
# by checking for the sd-boot's specific EFI variables.
|
||||
machine.start()
|
||||
|
||||
# By construction, nixos-generation-1.efi is the stub we are interested in.
|
||||
# TODO: this should work -- machine.succeed("efibootmgr -d /dev/vda -c -l \\EFI\\Linux\\nixos-generation-1.efi") -- efivars are not persisted
|
||||
# across reboots atm?
|
||||
# cheat code no 1
|
||||
machine.succeed("cp /boot/EFI/Linux/nixos-generation-1-*.efi /boot/EFI/BOOT/BOOT${efiArchUppercased}.EFI")
|
||||
machine.succeed("cp /boot/EFI/Linux/nixos-generation-1-*.efi /boot/EFI/systemd/systemd-boot${efiArch}.efi")
|
||||
|
||||
# Let's reboot.
|
||||
machine.succeed("sync")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
|
||||
# This is the sd-boot EFI variable indicator, we should not have it at this point.
|
||||
print(machine.execute("bootctl")[1]) # Check if there's incorrect value in the output.
|
||||
machine.succeed(
|
||||
"test -e /sys/firmware/efi/efivars/LoaderEntrySelected-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f && false || true"
|
||||
)
|
||||
|
||||
expected_variables = ["LoaderDevicePartUUID",
|
||||
"LoaderImageIdentifier",
|
||||
"LoaderFirmwareInfo",
|
||||
"LoaderFirmwareType",
|
||||
"StubInfo",
|
||||
"StubFeatures"
|
||||
]
|
||||
|
||||
# Debug all systemd loader specification GUID EFI variables loaded by the current environment.
|
||||
print(machine.succeed(f"ls /sys/firmware/efi/efivars/*-{SD_LOADER_GUID}"))
|
||||
with subtest("Check if supported variables are exported"):
|
||||
for expected_var in expected_variables:
|
||||
machine.succeed(f"test -e /sys/firmware/efi/efivars/{expected_var}-{SD_LOADER_GUID}")
|
||||
|
||||
with subtest("Is `StubInfo` correctly set"):
|
||||
assert "lanzastub" in read_string_variable("StubInfo"), "Unexpected stub information, provenance is not lanzaboote project!"
|
||||
|
||||
assert_variable_string("LoaderImageIdentifier", "\\EFI\\BOOT\\BOOT${efiArchUppercased}.EFI")
|
||||
# TODO: exploit QEMU test infrastructure to pass the good value all the time.
|
||||
assert_variable_string("LoaderDevicePartUUID", "1c06f03b-704e-4657-b9cd-681a087a2fdc")
|
||||
# OVMF tests are using EDK II tree.
|
||||
assert_variable_string_contains("LoaderFirmwareInfo", "EDK II")
|
||||
assert_variable_string_contains("LoaderFirmwareType", "UEFI")
|
||||
|
||||
with subtest("Is `StubFeatures` non-zero"):
|
||||
assert struct.unpack('<Q', read_raw_variable("StubFeatures")) != 0
|
||||
'';
|
||||
};
|
||||
|
||||
tpm2-export-efi-variables = mkSecureBootTest {
|
||||
name = "lanzaboote-tpm2-exports-efi-variables";
|
||||
useTPM2 = true;
|
||||
readEfiVariables = true;
|
||||
testScript = ''
|
||||
machine.start()
|
||||
|
||||
# TODO: the other variables are not yet supported.
|
||||
expected_variables = [
|
||||
"StubPcrKernelImage"
|
||||
]
|
||||
|
||||
# Debug all systemd loader specification GUID EFI variables loaded by the current environment.
|
||||
print(machine.succeed(f"ls /sys/firmware/efi/efivars/*-{SD_LOADER_GUID}"))
|
||||
with subtest("Check if supported variables are exported"):
|
||||
for expected_var in expected_variables:
|
||||
machine.succeed(f"test -e /sys/firmware/efi/efivars/{expected_var}-{SD_LOADER_GUID}")
|
||||
|
||||
# "Static" parts of the UKI is measured in PCR11
|
||||
assert_variable_uint("StubPcrKernelImage", 11)
|
||||
'';
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
{
|
||||
|
||||
name = "lanzaboote";
|
||||
|
||||
|
||||
nodes.machine = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
|
||||
|
||||
# We want systemd to recognize our PE binaries as true UKIs. systemd has
|
||||
# become more picky in the past, so make sure.
|
||||
assert "Kernel Type: uki" in machine.succeed("bootctl kernel-inspect /boot/EFI/Linux/nixos-generation-1-*.efi")
|
||||
'';
|
||||
}
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
''
|
||||
import struct
|
||||
|
||||
SD_LOADER_GUID = "4a67b082-0a4c-41cf-b6c7-440b29bb8c4f"
|
||||
def read_raw_variable(var: str) -> bytes:
|
||||
attr_var = machine.succeed(f"cat /sys/firmware/efi/efivars/{var}-{SD_LOADER_GUID}").encode('raw_unicode_escape')
|
||||
_ = attr_var[:4] # First 4 bytes are attributes according to https://www.kernel.org/doc/html/latest/filesystems/efivarfs.html
|
||||
value = attr_var[4:]
|
||||
return value
|
||||
def read_string_variable(var: str, encoding='utf-16-le') -> str:
|
||||
return read_raw_variable(var).decode(encoding).rstrip('\x00')
|
||||
# By default, it will read a 4 byte value, read `struct` docs to change the format.
|
||||
def assert_variable_uint(var: str, expected: int, format: str = 'I'):
|
||||
with subtest(f"Is `{var}` set to {expected} (uint)"):
|
||||
value, = struct.unpack(f'<{format}', read_raw_variable(var))
|
||||
assert value == expected, f"Unexpected variable value in `{var}`, expected: `{expected}`, actual: `{value}`"
|
||||
def assert_variable_string(var: str, expected: str, encoding='utf-16-le'):
|
||||
with subtest(f"Is `{var}` correctly set"):
|
||||
value = read_string_variable(var, encoding)
|
||||
assert value == expected, f"Unexpected variable value in `{var}`, expected: `{expected.encode(encoding)!r}`, actual: `{value.encode(encoding)!r}`"
|
||||
def assert_variable_string_contains(var: str, expected_substring: str):
|
||||
with subtest(f"Do `{var}` contain expected substrings"):
|
||||
value = read_string_variable(var).strip()
|
||||
assert expected_substring in value, f"Did not find expected substring in `{var}`, expected substring: `{expected_substring}`, actual value: `{value}`"
|
||||
''
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
{ config, pkgs, ... }: {
|
||||
|
||||
virtualisation = {
|
||||
useBootLoader = true;
|
||||
useEFIBoot = true;
|
||||
useSecureBoot = true;
|
||||
|
||||
efi.OVMF = pkgs.OVMFFull.fd;
|
||||
};
|
||||
|
||||
boot = {
|
||||
loader.efi.canTouchEfiVariables = true;
|
||||
|
||||
lanzaboote = {
|
||||
enable = true;
|
||||
enrollKeys = config.virtualisation.useSecureBoot;
|
||||
pkiBundle = ../../fixtures/uefi-keys;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
{
|
||||
name = "lanzaboote-export-efivars-tpm";
|
||||
|
||||
nodes.machine = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
virtualisation.tpm.enable = true;
|
||||
};
|
||||
|
||||
testScript = (import ./common/efivariables-helper.nix) + ''
|
||||
machine.start()
|
||||
|
||||
# TODO: the other variables are not yet supported.
|
||||
expected_variables = [
|
||||
"StubPcrKernelImage"
|
||||
]
|
||||
|
||||
# Debug all systemd loader specification GUID EFI variables loaded by the current environment.
|
||||
print(machine.succeed(f"ls /sys/firmware/efi/efivars/*-{SD_LOADER_GUID}"))
|
||||
with subtest("Check if supported variables are exported"):
|
||||
for expected_var in expected_variables:
|
||||
machine.succeed(f"test -e /sys/firmware/efi/efivars/{expected_var}-{SD_LOADER_GUID}")
|
||||
|
||||
# "Static" parts of the UKI is measured in PCR11
|
||||
assert_variable_uint("StubPcrKernelImage", 11)
|
||||
'';
|
||||
}
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
{ lib, pkgs, ... }:
|
||||
|
||||
let
|
||||
|
||||
inherit (pkgs.stdenv.hostPlatform) efiArch;
|
||||
efiArchUppercased = lib.toUpper efiArch;
|
||||
|
||||
in
|
||||
|
||||
{
|
||||
name = "lanzaboote-export-efivars";
|
||||
|
||||
nodes.machine = { pkgs, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
};
|
||||
|
||||
testScript = (import ./common/efivariables-helper.nix) + ''
|
||||
# We will choose to boot directly on the stub.
|
||||
# To perform this trick, we will boot first with systemd-boot.
|
||||
# Then, we will add a new boot entry in EFI with higher priority
|
||||
# pointing to our stub.
|
||||
# Finally, we will reboot.
|
||||
# We will also assert that systemd-boot is not running
|
||||
# by checking for the sd-boot's specific EFI variables.
|
||||
machine.start()
|
||||
|
||||
# By construction, nixos-generation-1.efi is the stub we are interested in.
|
||||
# TODO: this should work -- machine.succeed("efibootmgr -d /dev/vda -c -l \\EFI\\Linux\\nixos-generation-1.efi") -- efivars are not persisted
|
||||
# across reboots atm?
|
||||
# cheat code no 1
|
||||
machine.succeed("cp /boot/EFI/Linux/nixos-generation-1-*.efi /boot/EFI/BOOT/BOOT${efiArchUppercased}.EFI")
|
||||
machine.succeed("cp /boot/EFI/Linux/nixos-generation-1-*.efi /boot/EFI/systemd/systemd-boot${efiArch}.efi")
|
||||
|
||||
# Let's reboot.
|
||||
machine.succeed("sync")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
|
||||
# This is the sd-boot EFI variable indicator, we should not have it at this point.
|
||||
print(machine.execute("bootctl")[1]) # Check if there's incorrect value in the output.
|
||||
machine.succeed(
|
||||
"test -e /sys/firmware/efi/efivars/LoaderEntrySelected-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f && false || true"
|
||||
)
|
||||
|
||||
expected_variables = ["LoaderDevicePartUUID",
|
||||
"LoaderImageIdentifier",
|
||||
"LoaderFirmwareInfo",
|
||||
"LoaderFirmwareType",
|
||||
"StubInfo",
|
||||
"StubFeatures"
|
||||
]
|
||||
|
||||
# Debug all systemd loader specification GUID EFI variables loaded by the current environment.
|
||||
print(machine.succeed(f"ls /sys/firmware/efi/efivars/*-{SD_LOADER_GUID}"))
|
||||
with subtest("Check if supported variables are exported"):
|
||||
for expected_var in expected_variables:
|
||||
machine.succeed(f"test -e /sys/firmware/efi/efivars/{expected_var}-{SD_LOADER_GUID}")
|
||||
|
||||
with subtest("Is `StubInfo` correctly set"):
|
||||
assert "lanzastub" in read_string_variable("StubInfo"), "Unexpected stub information, provenance is not lanzaboote project!"
|
||||
|
||||
assert_variable_string("LoaderImageIdentifier", "\\EFI\\BOOT\\BOOT${efiArchUppercased}.EFI")
|
||||
# TODO: exploit QEMU test infrastructure to pass the good value all the time.
|
||||
assert_variable_string("LoaderDevicePartUUID", "1c06f03b-704e-4657-b9cd-681a087a2fdc")
|
||||
# OVMF tests are using EDK II tree.
|
||||
assert_variable_string_contains("LoaderFirmwareInfo", "EDK II")
|
||||
assert_variable_string_contains("LoaderFirmwareType", "UEFI")
|
||||
|
||||
with subtest("Is `StubFeatures` non-zero"):
|
||||
assert struct.unpack('<Q', read_raw_variable("StubFeatures")) != 0
|
||||
'';
|
||||
}
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
# Execute a boot test that has an intentionally broken secure boot chain. This
|
||||
# test is expected to fail with Secure Boot and should succeed without. We test
|
||||
# this both for an intentionally broken initrd as well as for a broken kernel.
|
||||
|
||||
# The initrd is not directly signed. Its hash is embedded into the stub. To
|
||||
# make integrity verification fail, we actually have to modify the initrd.
|
||||
# Appending crap to the end is a harmless way that would make the kernel still
|
||||
# accept it.
|
||||
|
||||
{
|
||||
|
||||
name = "lanzaboote-hash-mismatch";
|
||||
|
||||
nodes = {
|
||||
|
||||
brokenInitrd = { lib, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
virtualisation.useSecureBoot = lib.mkForce false;
|
||||
};
|
||||
|
||||
brokenInitrdSecureBoot = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
};
|
||||
|
||||
brokenKernel = { lib, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
virtualisation.useSecureBoot = lib.mkForce false;
|
||||
};
|
||||
|
||||
brokenKernelSecureBoot = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
initrdGlob = "/boot/EFI/nixos/initrd-*.efi"
|
||||
kernelGlob = "/boot/EFI/nixos/kernel-*.efi"
|
||||
|
||||
def prepare(machine, glob):
|
||||
machine.start()
|
||||
machine.succeed(f"echo some_garbage_to_change_the_hash | tee -a {glob} > /dev/null")
|
||||
machine.succeed("sync")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
|
||||
# Start all VMs simultaneously to save some time
|
||||
start_all()
|
||||
|
||||
prepare(brokenInitrd, initrdGlob)
|
||||
prepare(brokenInitrdSecureBoot, initrdGlob)
|
||||
prepare(brokenKernel, kernelGlob)
|
||||
prepare(brokenKernelSecureBoot, kernelGlob)
|
||||
|
||||
brokenInitrd.succeed("bootctl", timeout=120)
|
||||
brokenInitrdSecureBoot.wait_for_console_text("hash does not match")
|
||||
brokenKernel.succeed("bootctl", timeout=120)
|
||||
brokenKernelSecureBoot.wait_for_console_text("hash does not match")
|
||||
'';
|
||||
}
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
# Test that the secrets configured to be appended to the initrd get updated
|
||||
# when installing a new generation even if the initrd itself (i.e. its store
|
||||
# path) does not change.
|
||||
#
|
||||
# An unfortunate result of this NixOS feature is that updating the secrets
|
||||
# without creating a new initrd might break previous generations. Verify that
|
||||
# a new initrd (which is supposed to only differ by the secrets) is created
|
||||
# in this case.
|
||||
#
|
||||
# This tests uses a specialisation to imitate a newer generation. This works
|
||||
# because `lzbt` installs the specialisation of a generation AFTER installing
|
||||
# the generation itself (thus making the specialisation "newer").
|
||||
|
||||
{ pkgs, ... }:
|
||||
|
||||
let
|
||||
|
||||
originalSecret = pkgs.writeText "oh-so-secure" "uhh-ooh-uhh-security";
|
||||
newSecret = pkgs.writeText "newly-secure" "so-much-better-now";
|
||||
|
||||
in
|
||||
|
||||
{
|
||||
name = "lanzaboote-initrd-secrets-update";
|
||||
|
||||
nodes.machine = { lib, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
boot.initrd = {
|
||||
secrets = {
|
||||
"/test" = lib.mkDefault (toString originalSecret);
|
||||
};
|
||||
postMountCommands = ''
|
||||
cp /test /mnt-root/secret-from-initramfs
|
||||
'';
|
||||
};
|
||||
|
||||
specialisation.variant.configuration = {
|
||||
boot.initrd.secrets = {
|
||||
"/test" = toString newSecret;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
machine.wait_for_unit("multi-user.target")
|
||||
|
||||
# Assert that only three boot files exists (a single kernel and a two
|
||||
# initrds).
|
||||
assert int(machine.succeed("ls -1 /boot/EFI/nixos | wc -l")) == 3
|
||||
|
||||
# It is expected that the initrd contains the original secret.
|
||||
machine.succeed("cmp ${originalSecret} /secret-from-initramfs")
|
||||
|
||||
machine.succeed("bootctl set-default nixos-generation-1-specialisation-variant-\*.efi")
|
||||
machine.succeed("sync")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
machine.wait_for_unit("multi-user.target")
|
||||
# It is expected that the initrd of the specialisation contains the new secret.
|
||||
machine.succeed("cmp ${newSecret} /secret-from-initramfs")
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
# Test that a secret is appended to the initrd during installation. Smilar to
|
||||
# the initrd-secrets test in Nixpkgs:
|
||||
# https://github.com/NixOS/nixpkgs/blob/master/nixos/tests/initrd-secrets.nix
|
||||
|
||||
{ pkgs, ... }:
|
||||
|
||||
let
|
||||
|
||||
secret = (pkgs.writeText "oh-so-secure" "uhh-ooh-uhh-security");
|
||||
|
||||
in
|
||||
|
||||
{
|
||||
|
||||
name = "lanzaboote-initrd-secrets";
|
||||
|
||||
nodes.machine = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
boot.initrd = {
|
||||
secrets = {
|
||||
"/test" = toString secret;
|
||||
};
|
||||
postMountCommands = ''
|
||||
cp /test /mnt-root/secret-from-initramfs
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
machine.wait_for_unit("multi-user.target")
|
||||
|
||||
machine.succeed("cmp ${secret} /secret-from-initramfs")
|
||||
assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
{
|
||||
name = "lanzaboote-specialisation";
|
||||
|
||||
nodes.machine = { pkgs, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
specialisation.variant.configuration = {
|
||||
environment.systemPackages = [
|
||||
pkgs.efibootmgr
|
||||
];
|
||||
};
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("ls -lah /boot/EFI/Linux"))
|
||||
# TODO: make it more reliable to find this filename, i.e. read it from somewhere?
|
||||
machine.succeed("bootctl set-default nixos-generation-1-specialisation-variant-\*.efi")
|
||||
machine.succeed("sync")
|
||||
machine.fail("efibootmgr")
|
||||
machine.crash()
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl"))
|
||||
# Only the specialisation contains the efibootmgr binary.
|
||||
machine.succeed("efibootmgr")
|
||||
'';
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
# Test installing Lanzaboote without Bootspec support.
|
||||
|
||||
# FIXME: currently broken on aarch64
|
||||
#> mkfs.fat 4.2 (2021-01-31)
|
||||
#> setting up /etc...
|
||||
#> Enrolling keys to EFI variables...✓
|
||||
#> Enrolled keys to the EFI variables!
|
||||
#> Installing Lanzaboote to "/boot"...
|
||||
#> No bootable generations found! Aborting to avoid unbootable system. Please check for Lanzaboote updates!
|
||||
#> [ 2.788390] reboot: Power down
|
||||
|
||||
{
|
||||
|
||||
name = "lanzaboote-synthesis";
|
||||
|
||||
nodes.machine = { lib, ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
boot.bootspec.enable = lib.mkForce false;
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
{
|
||||
|
||||
name = "lanzaboote-systemd-boot-loader-config";
|
||||
|
||||
nodes.machine = {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
boot.loader.timeout = 0;
|
||||
boot.loader.systemd-boot.consoleMode = "auto";
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
|
||||
actual_loader_config = machine.succeed("cat /boot/loader/loader.conf").split("\n")
|
||||
expected_loader_config = ["timeout 0", "console-mode auto"]
|
||||
|
||||
assert all(cfg in actual_loader_config for cfg in expected_loader_config), \
|
||||
f"Expected: {expected_loader_config} is not included in actual config: '{actual_loader_config}'"
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
{
|
||||
name = "lanzaboote-systemd-initrd";
|
||||
|
||||
nodes.machine = { ... }: {
|
||||
imports = [ ./common/lanzaboote.nix ];
|
||||
|
||||
boot.initrd.systemd.enable = true;
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")
|
||||
'';
|
||||
}
|
||||
|
|
@ -1,49 +0,0 @@
|
|||
{ pkgs, runTest, ukiModule }:
|
||||
|
||||
let
|
||||
defaultTimeout = 5 * 60; # = 5 minutes
|
||||
common = _: {
|
||||
imports = [ ukiModule ];
|
||||
|
||||
virtualisation = {
|
||||
useBootLoader = true;
|
||||
useEFIBoot = true;
|
||||
};
|
||||
|
||||
boot.loader.uki.enable = true;
|
||||
boot.loader.efi = {
|
||||
canTouchEfiVariables = true;
|
||||
};
|
||||
};
|
||||
in
|
||||
{
|
||||
# This test serves as a baseline to make sure that the custom boot installer
|
||||
# script defined in the ukiModule works with the upstream systemd-stub. When
|
||||
# this test fails something is very wrong.
|
||||
systemd-stub = runTest {
|
||||
name = "systemd-stub";
|
||||
globalTimeout = defaultTimeout;
|
||||
|
||||
nodes.machine = _: {
|
||||
imports = [ common ];
|
||||
boot.loader.uki.stub = "${pkgs.systemd}/lib/systemd/boot/efi/linux${pkgs.hostPlatform.efiArch}.efi.stub";
|
||||
};
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl status"))
|
||||
'';
|
||||
};
|
||||
|
||||
fatStub = runTest {
|
||||
name = "fat-stub";
|
||||
globalTimeout = defaultTimeout;
|
||||
|
||||
nodes.machine = _: {
|
||||
imports = [ common ];
|
||||
};
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl status"))
|
||||
'';
|
||||
};
|
||||
}
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
{
|
||||
|
||||
virtualisation = {
|
||||
useBootLoader = true;
|
||||
useEFIBoot = true;
|
||||
};
|
||||
|
||||
boot.loader.uki.enable = true;
|
||||
boot.loader.efi = {
|
||||
canTouchEfiVariables = true;
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
{
|
||||
|
||||
name = "fat-stub";
|
||||
|
||||
nodes.machine = _: {
|
||||
imports = [ ./common.nix ];
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl status"))
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
# This test serves as a baseline to make sure that the custom boot installer
|
||||
# script defined in the ukiModule works with the upstream systemd-stub. When
|
||||
# this test fails something is very wrong.
|
||||
|
||||
{
|
||||
|
||||
name = "systemd-stub";
|
||||
|
||||
nodes.machine = { pkgs, ... }: {
|
||||
imports = [ ./common.nix ];
|
||||
boot.loader.uki.stub = "${pkgs.systemd}/lib/systemd/boot/efi/linux${pkgs.hostPlatform.efiArch}.efi.stub";
|
||||
};
|
||||
|
||||
testScript = ''
|
||||
machine.start()
|
||||
print(machine.succeed("bootctl status"))
|
||||
'';
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue