82 lines
3.2 KiB
Nix
82 lines
3.2 KiB
Nix
import ./make-test-python.nix ({ pkgs, ... }: {
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name = "tang";
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meta = with pkgs.lib.maintainers; {
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maintainers = [ jfroche ];
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};
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nodes.server =
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{ config
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, pkgs
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, modulesPath
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, ...
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}: {
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imports = [
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"${modulesPath}/../tests/common/auto-format-root-device.nix"
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];
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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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networking.interfaces.eth1.ipv4.addresses = [
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{ address = "192.168.0.1"; prefixLength = 24; }
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];
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environment.systemPackages = with pkgs; [ clevis tang cryptsetup ];
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services.tang = {
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enable = true;
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ipAddressAllow = [ "127.0.0.1/32" ];
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};
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};
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testScript = ''
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start_all()
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machine.wait_for_unit("sockets.target")
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with subtest("Check keys are generated"):
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machine.wait_until_succeeds("curl -v http://127.0.0.1:7654/adv")
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key = machine.wait_until_succeeds("tang-show-keys 7654")
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with subtest("Check systemd access list"):
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machine.succeed("ping -c 3 192.168.0.1")
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machine.fail("curl -v --connect-timeout 3 http://192.168.0.1:7654/adv")
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with subtest("Check basic encrypt and decrypt message"):
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machine.wait_until_succeeds(f"""echo 'Hello World' | clevis encrypt tang '{{ "url": "http://127.0.0.1:7654", "thp":"{key}"}}' > /tmp/encrypted""")
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decrypted = machine.wait_until_succeeds("clevis decrypt < /tmp/encrypted")
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assert decrypted.strip() == "Hello World"
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machine.wait_until_succeeds("tang-show-keys 7654")
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with subtest("Check encrypt and decrypt disk"):
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machine.succeed("cryptsetup luksFormat --force-password --batch-mode /dev/vdb <<<'password'")
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machine.succeed(f"""clevis luks bind -s1 -y -f -d /dev/vdb tang '{{ "url": "http://127.0.0.1:7654", "thp":"{key}" }}' <<< 'password' """)
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clevis_luks = machine.succeed("clevis luks list -d /dev/vdb")
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assert clevis_luks.strip() == """1: tang '{"url":"http://127.0.0.1:7654"}'"""
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machine.succeed("clevis luks unlock -d /dev/vdb")
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machine.succeed("find /dev/mapper -name 'luks*' -exec cryptsetup close {} +")
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machine.succeed("clevis luks unlock -d /dev/vdb")
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machine.succeed("find /dev/mapper -name 'luks*' -exec cryptsetup close {} +")
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# without tang available, unlock should fail
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machine.succeed("systemctl stop tangd.socket")
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machine.fail("clevis luks unlock -d /dev/vdb")
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machine.succeed("systemctl start tangd.socket")
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with subtest("Rotate server keys"):
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machine.succeed("${pkgs.tang}/libexec/tangd-rotate-keys -d /var/lib/tang")
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machine.succeed("clevis luks unlock -d /dev/vdb")
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machine.succeed("find /dev/mapper -name 'luks*' -exec cryptsetup close {} +")
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with subtest("Test systemd service security"):
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output = machine.succeed("systemd-analyze security tangd@.service")
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machine.log(output)
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assert output[-9:-1] == "SAFE :-}"
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'';
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})
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