102 lines
4.2 KiB
Nix
102 lines
4.2 KiB
Nix
{ pkgs, lib, ... }: {
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name = "aesmd";
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meta = {
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maintainers = with lib.maintainers; [ trundle veehaitch ];
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};
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nodes.machine = { lib, ... }: {
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services.aesmd = {
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enable = true;
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settings = {
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defaultQuotingType = "ecdsa_256";
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proxyType = "direct";
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whitelistUrl = "http://nixos.org";
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};
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};
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# Should have access to the AESM socket
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users.users."sgxtest" = {
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isNormalUser = true;
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extraGroups = [ "sgx" ];
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};
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# Should NOT have access to the AESM socket
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users.users."nosgxtest".isNormalUser = true;
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# We don't have a real SGX machine in NixOS tests
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systemd.services.aesmd.unitConfig.AssertPathExists = lib.mkForce [ ];
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specialisation = {
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withQuoteProvider.configuration = { ... }: {
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services.aesmd = {
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quoteProviderLibrary = pkgs.sgx-azure-dcap-client;
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environment = {
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AZDCAP_DEBUG_LOG_LEVEL = "INFO";
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};
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};
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};
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};
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};
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testScript = { nodes, ... }:
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let
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specialisations = "${nodes.machine.system.build.toplevel}/specialisation";
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in
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''
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def get_aesmd_pid():
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status, main_pid = machine.systemctl("show --property MainPID --value aesmd.service")
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assert status == 0, "Could not get MainPID of aesmd.service"
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return main_pid.strip()
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with subtest("aesmd.service starts"):
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machine.wait_for_unit("aesmd.service")
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main_pid = get_aesmd_pid()
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with subtest("aesmd.service runtime directory permissions"):
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runtime_dir = "/run/aesmd";
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res = machine.succeed(f"stat -c '%a %U %G' {runtime_dir}").strip()
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assert "750 aesmd sgx" == res, f"{runtime_dir} does not have the expected permissions: {res}"
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with subtest("aesm.socket available on host"):
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socket_path = "/var/run/aesmd/aesm.socket"
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machine.wait_until_succeeds(f"test -S {socket_path}")
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machine.succeed(f"test 777 -eq $(stat -c '%a' {socket_path})")
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for op in [ "-r", "-w", "-x" ]:
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machine.succeed(f"sudo -u sgxtest test {op} {socket_path}")
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machine.fail(f"sudo -u nosgxtest test {op} {socket_path}")
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with subtest("Copies white_list_cert_to_be_verify.bin"):
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whitelist_path = "/var/opt/aesmd/data/white_list_cert_to_be_verify.bin"
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whitelist_perms = machine.succeed(
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f"nsenter -m -t {main_pid} ${pkgs.coreutils}/bin/stat -c '%a' {whitelist_path}"
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).strip()
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assert "644" == whitelist_perms, f"white_list_cert_to_be_verify.bin has permissions {whitelist_perms}"
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with subtest("Writes and binds aesm.conf in service namespace"):
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aesmd_config = machine.succeed(f"nsenter -m -t {main_pid} ${pkgs.coreutils}/bin/cat /etc/aesmd.conf")
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assert aesmd_config == "whitelist url = http://nixos.org\nproxy type = direct\ndefault quoting type = ecdsa_256\n", "aesmd.conf differs"
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with subtest("aesmd.service without quote provider library has correct LD_LIBRARY_PATH"):
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status, environment = machine.systemctl("show --property Environment --value aesmd.service")
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assert status == 0, "Could not get Environment of aesmd.service"
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env_by_name = dict(entry.split("=", 1) for entry in environment.split())
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assert not env_by_name["LD_LIBRARY_PATH"], "LD_LIBRARY_PATH is not empty"
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with subtest("aesmd.service with quote provider library starts"):
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machine.succeed('${specialisations}/withQuoteProvider/bin/switch-to-configuration test')
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machine.wait_for_unit("aesmd.service")
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main_pid = get_aesmd_pid()
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with subtest("aesmd.service with quote provider library has correct LD_LIBRARY_PATH"):
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ld_library_path = machine.succeed(f"xargs -0 -L1 -a /proc/{main_pid}/environ | grep LD_LIBRARY_PATH")
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assert ld_library_path.startswith("LD_LIBRARY_PATH=${pkgs.sgx-azure-dcap-client}/lib:"), \
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"LD_LIBRARY_PATH is not set to the configured quote provider library"
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with subtest("aesmd.service with quote provider library has set AZDCAP_DEBUG_LOG_LEVEL"):
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azdcp_debug_log_level = machine.succeed(f"xargs -0 -L1 -a /proc/{main_pid}/environ | grep AZDCAP_DEBUG_LOG_LEVEL")
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assert azdcp_debug_log_level == "AZDCAP_DEBUG_LOG_LEVEL=INFO\n", "AZDCAP_DEBUG_LOG_LEVEL is not set to INFO"
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'';
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}
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