69 lines
2.5 KiB
Nix
69 lines
2.5 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}")
|
|
'';
|
|
})
|