diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/conf_mode/protocols_bgp.py | 11 | ||||
| -rwxr-xr-x | src/conf_mode/service_console-server.py | 8 | ||||
| -rwxr-xr-x | src/conf_mode/system_login.py | 21 | ||||
| -rwxr-xr-x | src/helpers/show_commit_data.py | 56 | ||||
| -rwxr-xr-x | src/helpers/test_commit.py | 49 | ||||
| -rwxr-xr-x | src/helpers/vyos-certbot-renew-pki.sh | 2 | ||||
| -rwxr-xr-x | src/op_mode/image_installer.py | 19 | ||||
| -rwxr-xr-x | src/services/vyos-commitd | 453 | ||||
| -rw-r--r-- | src/systemd/vyos-commitd.service | 27 | ||||
| -rw-r--r-- | src/tests/test_config_diff.py | 11 |
10 files changed, 649 insertions, 8 deletions
diff --git a/src/conf_mode/protocols_bgp.py b/src/conf_mode/protocols_bgp.py index c4af717af..53e83c3b4 100755 --- a/src/conf_mode/protocols_bgp.py +++ b/src/conf_mode/protocols_bgp.py @@ -523,12 +523,21 @@ def verify(config_dict): raise ConfigError( 'Please unconfigure import vrf commands before using vpn commands in dependent VRFs!') + if (dict_search('route_map.vrf.import', afi_config) is not None + or dict_search('import.vrf', afi_config) is not None): # FRR error: please unconfigure vpn to vrf commands before # using import vrf commands - if 'vpn' in afi_config['import'] or dict_search('export.vpn', afi_config) != None: + if ('vpn' in afi_config['import'] + or dict_search('export.vpn', afi_config) is not None): raise ConfigError('Please unconfigure VPN to VRF commands before '\ 'using "import vrf" commands!') + if (dict_search('route_map.vpn.import', afi_config) is not None + or dict_search('route_map.vpn.export', afi_config) is not None) : + raise ConfigError('Please unconfigure route-map VPN to VRF commands before '\ + 'using "import vrf" commands!') + + # Verify that the export/import route-maps do exist for export_import in ['export', 'import']: tmp = dict_search(f'route_map.vpn.{export_import}', afi_config) diff --git a/src/conf_mode/service_console-server.py b/src/conf_mode/service_console-server.py index b112add3f..b83c6dfb1 100755 --- a/src/conf_mode/service_console-server.py +++ b/src/conf_mode/service_console-server.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2018-2021 VyOS maintainers and contributors +# Copyright (C) 2018-2025 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as @@ -98,6 +98,12 @@ def generate(proxy): return None def apply(proxy): + if not os.path.exists('/etc/dropbear/dropbear_rsa_host_key'): + call('dropbearkey -t rsa -s 4096 -f /etc/dropbear/dropbear_rsa_host_key') + + if not os.path.exists('/etc/dropbear/dropbear_ecdsa_host_key'): + call('dropbearkey -t ecdsa -f /etc/dropbear/dropbear_ecdsa_host_key') + call('systemctl daemon-reload') call('systemctl stop dropbear@*.service conserver-server.service') diff --git a/src/conf_mode/system_login.py b/src/conf_mode/system_login.py index d3a969d9b..1e6061ecf 100755 --- a/src/conf_mode/system_login.py +++ b/src/conf_mode/system_login.py @@ -15,6 +15,7 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. import os +import warnings from passlib.hosts import linux_context from psutil import users @@ -24,11 +25,17 @@ from pwd import getpwuid from sys import exit from time import sleep +from vyos.base import Warning from vyos.config import Config from vyos.configverify import verify_vrf from vyos.template import render from vyos.template import is_ipv4 -from vyos.utils.auth import get_current_user +from vyos.utils.auth import ( + DEFAULT_PASSWORD, + EPasswdStrength, + evaluate_strength, + get_current_user +) from vyos.utils.configfs import delete_cli_node from vyos.utils.configfs import add_cli_node from vyos.utils.dict import dict_search @@ -146,6 +153,18 @@ def verify(login): if s_user.pw_name == user and s_user.pw_uid < MIN_USER_UID: raise ConfigError(f'User "{user}" can not be created, conflict with local system account!') + # T6353: Check password for complexity using cracklib. + # A user password should be sufficiently complex + plaintext_password = dict_search( + path='authentication.plaintext_password', + dict_object=user_config + ) or None + + if plaintext_password is not None: + result = evaluate_strength(plaintext_password) + if result['strength'] == EPasswdStrength.WEAK: + Warning(result['error']) + for pubkey, pubkey_options in (dict_search('authentication.public_keys', user_config) or {}).items(): if 'type' not in pubkey_options: raise ConfigError(f'Missing type for public-key "{pubkey}"!') diff --git a/src/helpers/show_commit_data.py b/src/helpers/show_commit_data.py new file mode 100755 index 000000000..d507ed9a4 --- /dev/null +++ b/src/helpers/show_commit_data.py @@ -0,0 +1,56 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2025 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# +# This script is used to show the commit data of the configuration + +import sys +from pathlib import Path +from argparse import ArgumentParser + +from vyos.config_mgmt import ConfigMgmt +from vyos.configtree import ConfigTree +from vyos.configtree import show_commit_data + +cm = ConfigMgmt() + +parser = ArgumentParser( + description='Show commit priority queue; no options compares the last two commits' +) +parser.add_argument('--active-config', help='Path to the active configuration file') +parser.add_argument('--proposed-config', help='Path to the proposed configuration file') +args = parser.parse_args() + +active_arg = args.active_config +proposed_arg = args.proposed_config + +if active_arg and not proposed_arg: + print('--proposed-config is required when --active-config is specified') + sys.exit(1) + +if not active_arg and not proposed_arg: + active = cm.get_config_tree_revision(1) + proposed = cm.get_config_tree_revision(0) +else: + if active_arg: + active = ConfigTree(Path(active_arg).read_text()) + else: + active = cm.get_config_tree_revision(0) + + proposed = ConfigTree(Path(proposed_arg).read_text()) + +ret = show_commit_data(active, proposed) +print(ret) diff --git a/src/helpers/test_commit.py b/src/helpers/test_commit.py new file mode 100755 index 000000000..00a413687 --- /dev/null +++ b/src/helpers/test_commit.py @@ -0,0 +1,49 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2025 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# +# This script is used to test execution of the commit algorithm by vyos-commitd + +from pathlib import Path +from argparse import ArgumentParser +from datetime import datetime + +from vyos.configtree import ConfigTree +from vyos.configtree import test_commit + + +parser = ArgumentParser( + description='Execute commit priority queue' +) +parser.add_argument( + '--active-config', help='Path to the active configuration file', required=True +) +parser.add_argument( + '--proposed-config', help='Path to the proposed configuration file', required=True +) +args = parser.parse_args() + +active_arg = args.active_config +proposed_arg = args.proposed_config + +active = ConfigTree(Path(active_arg).read_text()) +proposed = ConfigTree(Path(proposed_arg).read_text()) + + +time_begin_commit = datetime.now() +test_commit(active, proposed) +time_end_commit = datetime.now() +print(f'commit time: {time_end_commit - time_begin_commit}') diff --git a/src/helpers/vyos-certbot-renew-pki.sh b/src/helpers/vyos-certbot-renew-pki.sh index d0b663f7b..1c273d2fa 100755 --- a/src/helpers/vyos-certbot-renew-pki.sh +++ b/src/helpers/vyos-certbot-renew-pki.sh @@ -1,3 +1,3 @@ -#!/bin/sh +#!/bin/vbash source /opt/vyatta/etc/functions/script-template /usr/libexec/vyos/conf_mode/pki.py certbot_renew diff --git a/src/op_mode/image_installer.py b/src/op_mode/image_installer.py index 609b0b347..c6e9c7f6f 100755 --- a/src/op_mode/image_installer.py +++ b/src/op_mode/image_installer.py @@ -32,10 +32,16 @@ from errno import ENOSPC from psutil import disk_partitions +from vyos.base import Warning from vyos.configtree import ConfigTree from vyos.remote import download from vyos.system import disk, grub, image, compat, raid, SYSTEM_CFG_VER from vyos.template import render +from vyos.utils.auth import ( + DEFAULT_PASSWORD, + EPasswdStrength, + evaluate_strength +) from vyos.utils.io import ask_input, ask_yes_no, select_entry from vyos.utils.file import chmod_2775 from vyos.utils.process import cmd, run, rc_cmd @@ -83,6 +89,9 @@ MSG_WARN_ROOT_SIZE_TOOBIG: str = 'The size is too big. Try again.' MSG_WARN_ROOT_SIZE_TOOSMALL: str = 'The size is too small. Try again' MSG_WARN_IMAGE_NAME_WRONG: str = 'The suggested name is unsupported!\n'\ 'It must be between 1 and 64 characters long and contains only the next characters: .+-_ a-z A-Z 0-9' + +MSG_WARN_CHANGE_PASSWORD: str = 'Default password used. Consider changing ' \ + 'it on next login.' MSG_WARN_PASSWORD_CONFIRM: str = 'The entered values did not match. Try again' 'Installing a different image flavor may cause functionality degradation or break your system.\n' \ 'Do you want to continue with installation?' @@ -778,10 +787,20 @@ def install_image() -> None: while True: user_password: str = ask_input(MSG_INPUT_PASSWORD, no_echo=True, non_empty=True) + + if user_password == DEFAULT_PASSWORD: + Warning(MSG_WARN_CHANGE_PASSWORD) + else: + result = evaluate_strength(user_password) + if result['strength'] == EPasswdStrength.WEAK: + Warning(result['error']) + confirm: str = ask_input(MSG_INPUT_PASSWORD_CONFIRM, no_echo=True, non_empty=True) + if user_password == confirm: break + print(MSG_WARN_PASSWORD_CONFIRM) # ask for default console diff --git a/src/services/vyos-commitd b/src/services/vyos-commitd new file mode 100755 index 000000000..8dbd39058 --- /dev/null +++ b/src/services/vyos-commitd @@ -0,0 +1,453 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2025 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# +import os +import sys +import grp +import json +import signal +import socket +import typing +import logging +import traceback +import importlib.util +import io +from contextlib import redirect_stdout +from dataclasses import dataclass +from dataclasses import fields +from dataclasses import field +from dataclasses import asdict +from pathlib import Path + +import tomli + +from google.protobuf.json_format import MessageToDict +from google.protobuf.json_format import ParseDict + +from vyos.defaults import directories +from vyos.utils.boot import boot_configuration_complete +from vyos.configsource import ConfigSourceCache +from vyos.configsource import ConfigSourceError +from vyos.config import Config +from vyos.frrender import FRRender +from vyos.frrender import get_frrender_dict +from vyos import ConfigError + +from vyos.proto import vycall_pb2 + + +@dataclass +class Status: + success: bool = False + out: str = '' + + +@dataclass +class Call: + script_name: str = '' + tag_value: str = None + arg_value: str = None + reply: Status = None + + def set_reply(self, success: bool, out: str): + self.reply = Status(success=success, out=out) + + +@dataclass +class Session: + # pylint: disable=too-many-instance-attributes + + session_id: str = '' + named_active: str = None + named_proposed: str = None + dry_run: bool = False + atomic: bool = False + background: bool = False + config: Config = None + init: Status = None + calls: list[Call] = field(default_factory=list) + + def set_init(self, success: bool, out: str): + self.init = Status(success=success, out=out) + + +@dataclass +class ServerConf: + commitd_socket: str = '' + session_dir: str = '' + running_cache: str = '' + session_cache: str = '' + + +server_conf = None +SOCKET_PATH = None +conf_mode_scripts = None +frr = None + +CFG_GROUP = 'vyattacfg' + +script_stdout_log = '/tmp/vyos-commitd-script-stdout' + +debug = True + +logger = logging.getLogger(__name__) +logs_handler = logging.StreamHandler() +logger.addHandler(logs_handler) + +if debug: + logger.setLevel(logging.DEBUG) +else: + logger.setLevel(logging.INFO) + + +vyos_conf_scripts_dir = directories['conf_mode'] +commitd_include_file = os.path.join(directories['data'], 'configd-include.json') + + +def key_name_from_file_name(f): + return os.path.splitext(f)[0] + + +def module_name_from_key(k): + return k.replace('-', '_') + + +def path_from_file_name(f): + return os.path.join(vyos_conf_scripts_dir, f) + + +def load_conf_mode_scripts(): + with open(commitd_include_file) as f: + try: + include = json.load(f) + except OSError as e: + logger.critical(f'configd include file error: {e}') + sys.exit(1) + except json.JSONDecodeError as e: + logger.critical(f'JSON load error: {e}') + sys.exit(1) + + # import conf_mode scripts + (_, _, filenames) = next(iter(os.walk(vyos_conf_scripts_dir))) + filenames.sort() + + # this is redundant, as all scripts are currently in the include file; + # leave it as an inexpensive check for future changes + load_filenames = [f for f in filenames if f in include] + imports = [key_name_from_file_name(f) for f in load_filenames] + module_names = [module_name_from_key(k) for k in imports] + paths = [path_from_file_name(f) for f in load_filenames] + to_load = list(zip(module_names, paths)) + + modules = [] + + for x in to_load: + spec = importlib.util.spec_from_file_location(x[0], x[1]) + module = importlib.util.module_from_spec(spec) + spec.loader.exec_module(module) + modules.append(module) + + scripts = dict(zip(imports, modules)) + + return scripts + + +def get_session_out(session: Session) -> str: + out = '' + if session.init and session.init.out: + out = f'{out} + init: {session.init.out} + \n' + for call in session.calls: + reply = call.reply + if reply and reply.out: + out = f'{out} + {call.script_name}: {reply.out} + \n' + return out + + +def write_stdout_log(file_name, session): + if boot_configuration_complete(): + return + with open(file_name, 'a') as f: + f.write(get_session_out(session)) + + +def msg_to_commit_data(msg: vycall_pb2.Commit) -> Session: + # pylint: disable=no-member + + d = MessageToDict(msg, preserving_proto_field_name=True) + + # wrap in dataclasses + session = Session(**d) + session.init = Status(**session.init) if session.init else None + session.calls = list(map(lambda x: Call(**x), session.calls)) + for call in session.calls: + call.reply = Status(**call.reply) if call.reply else None + + return session + + +def commit_data_to_msg(obj: Session) -> vycall_pb2.Commit: + # pylint: disable=no-member + + # avoid asdict attempt of deepcopy on Config obj + obj.config = None + + msg = vycall_pb2.Commit() + msg = ParseDict(asdict(obj), msg, ignore_unknown_fields=True) + + return msg + + +def initialization(session: Session) -> Session: + running_cache = os.path.join(server_conf.session_dir, server_conf.running_cache) + session_cache = os.path.join(server_conf.session_dir, server_conf.session_cache) + try: + configsource = ConfigSourceCache( + running_config_cache=running_cache, + session_config_cache=session_cache, + ) + except ConfigSourceError as e: + fail_msg = f'Failed to read config caches: {e}' + logger.critical(fail_msg) + session.set_init(False, fail_msg) + return session + + session.set_init(True, '') + + config = Config(config_source=configsource) + + dependent_func: dict[str, list[typing.Callable]] = {} + setattr(config, 'dependent_func', dependent_func) + + scripts_called = [] + setattr(config, 'scripts_called', scripts_called) + + dry_run = False + setattr(config, 'dry_run', dry_run) + + session.config = config + + return session + + +def run_script(script_name: str, config: Config, args: list) -> tuple[bool, str]: + # pylint: disable=broad-exception-caught + + script = conf_mode_scripts[script_name] + script.argv = args + config.set_level([]) + try: + c = script.get_config(config) + script.verify(c) + script.generate(c) + script.apply(c) + except ConfigError as e: + logger.error(e) + return False, str(e) + except Exception: + tb = traceback.format_exc() + logger.error(tb) + return False, tb + + return True, '' + + +def process_call_data(call: Call, config: Config, last: bool = False) -> None: + # pylint: disable=too-many-locals + + script_name = key_name_from_file_name(call.script_name) + + if script_name not in conf_mode_scripts: + fail_msg = f'No such script: {call.script_name}' + logger.critical(fail_msg) + call.set_reply(False, fail_msg) + return + + config.dependency_list.clear() + + tag_value = call.tag_value if call.tag_value is not None else '' + os.environ['VYOS_TAGNODE_VALUE'] = tag_value + + args = call.arg_value.split() if call.arg_value else [] + args.insert(0, f'{script_name}.py') + + tag_ext = f'_{tag_value}' if tag_value else '' + script_record = f'{script_name}{tag_ext}' + scripts_called = getattr(config, 'scripts_called', []) + scripts_called.append(script_record) + + with redirect_stdout(io.StringIO()) as o: + success, err_out = run_script(script_name, config, args) + amb_out = o.getvalue() + o.close() + + out = amb_out + err_out + + call.set_reply(success, out) + + logger.info(f'[{script_name}] {out}') + + if last: + scripts_called = getattr(config, 'scripts_called', []) + logger.debug(f'scripts_called: {scripts_called}') + + if last and success: + tmp = get_frrender_dict(config) + if frr.generate(tmp): + # only apply a new FRR configuration if anything changed + # in comparison to the previous applied configuration + frr.apply() + + +def process_session_data(session: Session) -> Session: + if session.init is None or not session.init.success: + return session + + config = session.config + len_calls = len(session.calls) + for index, call in enumerate(session.calls): + process_call_data(call, config, last=len_calls == index + 1) + + return session + + +def read_message(msg: bytes) -> Session: + """Read message into Session instance""" + + message = vycall_pb2.Commit() # pylint: disable=no-member + message.ParseFromString(msg) + session = msg_to_commit_data(message) + + session = initialization(session) + session = process_session_data(session) + + write_stdout_log(script_stdout_log, session) + + return session + + +def write_reply(session: Session) -> bytearray: + """Serialize modified object to bytearray, prepending data length + header""" + + reply = commit_data_to_msg(session) + encoded_data = reply.SerializeToString() + byte_size = reply.ByteSize() + length_bytes = byte_size.to_bytes(4) + arr = bytearray(length_bytes) + arr.extend(encoded_data) + + return arr + + +def load_server_conf() -> ServerConf: + # pylint: disable=import-outside-toplevel + # pylint: disable=broad-exception-caught + from vyos.defaults import vyconfd_conf + + try: + with open(vyconfd_conf, 'rb') as f: + vyconfd_conf_d = tomli.load(f) + + except Exception as e: + logger.critical(f'Failed to open the vyconfd.conf file {vyconfd_conf}: {e}') + sys.exit(1) + + app = vyconfd_conf_d.get('appliance', {}) + + conf_data = { + k: v for k, v in app.items() if k in [_.name for _ in fields(ServerConf)] + } + + conf = ServerConf(**conf_data) + + return conf + + +def remove_if_exists(f: str): + try: + os.unlink(f) + except FileNotFoundError: + pass + + +def sig_handler(_signum, _frame): + logger.info('stopping server') + raise KeyboardInterrupt + + +def run_server(): + # pylint: disable=global-statement + + global server_conf + global SOCKET_PATH + global conf_mode_scripts + global frr + + signal.signal(signal.SIGTERM, sig_handler) + signal.signal(signal.SIGINT, sig_handler) + + logger.info('starting server') + + server_conf = load_server_conf() + SOCKET_PATH = server_conf.commitd_socket + conf_mode_scripts = load_conf_mode_scripts() + + cfg_group = grp.getgrnam(CFG_GROUP) + os.setgid(cfg_group.gr_gid) + + server_socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + + remove_if_exists(SOCKET_PATH) + server_socket.bind(SOCKET_PATH) + Path(SOCKET_PATH).chmod(0o775) + + # We only need one long-lived instance of FRRender + frr = FRRender() + + server_socket.listen(2) + while True: + try: + conn, _ = server_socket.accept() + logger.debug('connection accepted') + while True: + # receive size of data + data_length = conn.recv(4) + if not data_length: + logger.debug('no data') + # if no data break + break + + length = int.from_bytes(data_length) + # receive data + data = conn.recv(length) + + session = read_message(data) + reply = write_reply(session) + conn.sendall(reply) + + conn.close() + logger.debug('connection closed') + + except KeyboardInterrupt: + break + + server_socket.close() + sys.exit(0) + + +if __name__ == '__main__': + run_server() diff --git a/src/systemd/vyos-commitd.service b/src/systemd/vyos-commitd.service new file mode 100644 index 000000000..5b083f500 --- /dev/null +++ b/src/systemd/vyos-commitd.service @@ -0,0 +1,27 @@ +[Unit] +Description=VyOS commit daemon + +# Without this option, lots of default dependencies are added, +# among them network.target, which creates a dependency cycle +DefaultDependencies=no + +# Seemingly sensible way to say "as early as the system is ready" +# All vyos-configd needs is read/write mounted root +After=systemd-remount-fs.service +Before=vyos-router.service + +[Service] +ExecStart=/usr/bin/python3 -u /usr/libexec/vyos/services/vyos-commitd +Type=idle + +SyslogIdentifier=vyos-commitd +SyslogFacility=daemon + +Restart=on-failure + +# Does't work in Jessie but leave it here +User=root +Group=vyattacfg + +[Install] +WantedBy=vyos.target diff --git a/src/tests/test_config_diff.py b/src/tests/test_config_diff.py index 39e17613a..4017fff4d 100644 --- a/src/tests/test_config_diff.py +++ b/src/tests/test_config_diff.py @@ -31,11 +31,11 @@ class TestConfigDiff(TestCase): def test_unit(self): diff = vyos.configtree.DiffTree(self.config_left, self.config_null) sub = diff.sub - self.assertEqual(sub.to_string(), self.config_left.to_string()) + self.assertEqual(sub, self.config_left) diff = vyos.configtree.DiffTree(self.config_null, self.config_left) add = diff.add - self.assertEqual(add.to_string(), self.config_left.to_string()) + self.assertEqual(add, self.config_left) def test_symmetry(self): lr_diff = vyos.configtree.DiffTree(self.config_left, @@ -45,10 +45,10 @@ class TestConfigDiff(TestCase): sub = lr_diff.sub add = rl_diff.add - self.assertEqual(sub.to_string(), add.to_string()) + self.assertEqual(sub, add) add = lr_diff.add sub = rl_diff.sub - self.assertEqual(add.to_string(), sub.to_string()) + self.assertEqual(add, sub) def test_identity(self): lr_diff = vyos.configtree.DiffTree(self.config_left, @@ -61,6 +61,9 @@ class TestConfigDiff(TestCase): r_union = vyos.configtree.union(add, inter) l_union = vyos.configtree.union(sub, inter) + # here we must compare string representations instead of using + # dunder equal, as we assert equivalence of the values list, which + # is optionally ordered at render self.assertEqual(r_union.to_string(), self.config_right.to_string(ordered_values=True)) self.assertEqual(l_union.to_string(), |