nixpkgs/nixos/tests/systemd-credentials-tpm2.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

74 lines
2.6 KiB
Nix

import ./make-test-python.nix (
{ lib, pkgs, ... }:
{
name = "systemd-credentials-tpm2";
meta = {
maintainers = with pkgs.lib.maintainers; [ tmarkus ];
};
nodes.machine =
{ pkgs, ... }:
{
virtualisation.tpm.enable = true;
environment.systemPackages = with pkgs; [ diffutils ];
};
testScript = ''
CRED_NAME = "testkey"
CRED_RAW_FILE = f"/root/{CRED_NAME}"
CRED_FILE = f"/root/{CRED_NAME}.cred"
def systemd_run(machine, cmd):
machine.log(f"Executing command (via systemd-run): \"{cmd}\"")
(status, out) = machine.execute( " ".join([
"systemd-run",
"--service-type=exec",
"--quiet",
"--wait",
"-E PATH=\"$PATH\"",
"-p StandardOutput=journal",
"-p StandardError=journal",
f"-p LoadCredentialEncrypted={CRED_NAME}:{CRED_FILE}",
f"$SHELL -c '{cmd}'"
]) )
if status != 0:
raise Exception(f"systemd_run failed (status {status})")
machine.log("systemd-run finished successfully")
machine.wait_for_unit("multi-user.target")
with subtest("Check whether TPM device exists"):
machine.succeed("test -e /dev/tpm0")
machine.succeed("test -e /dev/tpmrm0")
with subtest("Check whether systemd-creds detects TPM2 correctly"):
cmd = "systemd-creds has-tpm2"
machine.log(f"Running \"{cmd}\"")
(status, _) = machine.execute(cmd)
# Check exit code equals 0 or 1 (1 means firmware support is missing, which is OK here)
if status != 0 and status != 1:
raise Exception("systemd-creds failed to detect TPM2")
with subtest("Encrypt credential using systemd-creds"):
machine.succeed(f"dd if=/dev/urandom of={CRED_RAW_FILE} bs=1k count=16")
machine.succeed(f"systemd-creds --with-key=host+tpm2 encrypt --name=testkey {CRED_RAW_FILE} {CRED_FILE}")
with subtest("Write provided credential and check for equality"):
CRED_OUT_FILE = f"/root/{CRED_NAME}.out"
systemd_run(machine, f"systemd-creds cat testkey > {CRED_OUT_FILE}")
machine.succeed(f"cmp --silent -- {CRED_RAW_FILE} {CRED_OUT_FILE}")
with subtest("Check whether systemd service can see credential in systemd-creds list"):
systemd_run(machine, f"systemd-creds list | grep {CRED_NAME}")
with subtest("Check whether systemd service can access credential in $CREDENTIALS_DIRECTORY"):
systemd_run(machine, f"cmp --silent -- $CREDENTIALS_DIRECTORY/{CRED_NAME} {CRED_RAW_FILE}")
'';
}
)