diff options
Diffstat (limited to 'src/helpers')
-rwxr-xr-x | src/helpers/add-system-version.py (renamed from src/helpers/system-versions-foot.py) | 14 | ||||
-rwxr-xr-x | src/helpers/commit-confirm-notify.py | 48 | ||||
-rwxr-xr-x | src/helpers/config_dependency.py | 79 | ||||
-rwxr-xr-x | src/helpers/latest-image-url.py | 21 | ||||
-rwxr-xr-x | src/helpers/run-config-activation.py | 83 | ||||
-rwxr-xr-x | src/helpers/run-config-migration.py | 128 | ||||
-rwxr-xr-x | src/helpers/vyos-config-encrypt.py | 273 | ||||
-rwxr-xr-x | src/helpers/vyos-domain-resolver.py | 176 | ||||
-rwxr-xr-x | src/helpers/vyos-load-balancer.py | 312 | ||||
-rwxr-xr-x | src/helpers/vyos-load-config.py | 21 | ||||
-rwxr-xr-x | src/helpers/vyos-merge-config.py | 17 | ||||
-rwxr-xr-x | src/helpers/vyos-save-config.py | 15 | ||||
-rwxr-xr-x | src/helpers/vyos_net_name | 153 |
13 files changed, 965 insertions, 375 deletions
diff --git a/src/helpers/system-versions-foot.py b/src/helpers/add-system-version.py index 9614f0d28..5270ee7d3 100755 --- a/src/helpers/system-versions-foot.py +++ b/src/helpers/add-system-version.py @@ -1,6 +1,6 @@ #!/usr/bin/python3 -# Copyright 2019, 2022 VyOS maintainers and contributors <maintainers@vyos.io> +# Copyright 2019-2024 VyOS maintainers and contributors <maintainers@vyos.io> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public @@ -15,14 +15,6 @@ # You should have received a copy of the GNU Lesser General Public License # along with this library. If not, see <http://www.gnu.org/licenses/>. -import sys -import vyos.defaults -from vyos.component_version import write_system_footer +from vyos.component_version import add_system_version -sys.stdout.write("\n\n") -if vyos.defaults.cfg_vintage == 'vyos': - write_system_footer(None, vintage='vyos') -elif vyos.defaults.cfg_vintage == 'vyatta': - write_system_footer(None, vintage='vyatta') -else: - write_system_footer(None, vintage='vyos') +add_system_version() diff --git a/src/helpers/commit-confirm-notify.py b/src/helpers/commit-confirm-notify.py index 8d7626c78..af6167651 100755 --- a/src/helpers/commit-confirm-notify.py +++ b/src/helpers/commit-confirm-notify.py @@ -2,30 +2,56 @@ import os import sys import time +from argparse import ArgumentParser # Minutes before reboot to trigger notification. intervals = [1, 5, 15, 60] -def notify(interval): - s = "" if interval == 1 else "s" +parser = ArgumentParser() +parser.add_argument( + 'minutes', type=int, help='minutes before rollback to trigger notification' +) +parser.add_argument( + '--reboot', action='store_true', help="use 'soft' rollback instead of reboot" +) + + +def notify(interval, reboot=False): + s = '' if interval == 1 else 's' time.sleep((minutes - interval) * 60) - message = ('"[commit-confirm] System is going to reboot in ' - f'{interval} minute{s} to rollback the last commit.\n' - 'Confirm your changes to cancel the reboot."') - os.system("wall -n " + message) + if reboot: + message = ( + '"[commit-confirm] System will reboot in ' + f'{interval} minute{s}\nto rollback the last commit.\n' + 'Confirm your changes to cancel the reboot."' + ) + os.system('wall -n ' + message) + else: + message = ( + '"[commit-confirm] System will reload previous config in ' + f'{interval} minute{s}\nto rollback the last commit.\n' + 'Confirm your changes to cancel the reload."' + ) + os.system('wall -n ' + message) + -if __name__ == "__main__": +if __name__ == '__main__': # Must be run as root to call wall(1) without a banner. - if len(sys.argv) != 2 or os.getuid() != 0: + if os.getuid() != 0: print('This script requires superuser privileges.', file=sys.stderr) exit(1) - minutes = int(sys.argv[1]) + + args = parser.parse_args() + + minutes = args.minutes + reboot = args.reboot + # Drop the argument from the list so that the notification # doesn't kick in immediately. if minutes in intervals: intervals.remove(minutes) for interval in sorted(intervals, reverse=True): if minutes >= interval: - notify(interval) - minutes -= (minutes - interval) + notify(interval, reboot=reboot) + minutes -= minutes - interval exit(0) diff --git a/src/helpers/config_dependency.py b/src/helpers/config_dependency.py index 50c72956e..817bcc65a 100755 --- a/src/helpers/config_dependency.py +++ b/src/helpers/config_dependency.py @@ -18,22 +18,75 @@ import os import sys +import json from argparse import ArgumentParser from argparse import ArgumentTypeError - -try: - from vyos.configdep import check_dependency_graph - from vyos.defaults import directories -except ImportError: - # allow running during addon package build - _here = os.path.dirname(__file__) - sys.path.append(os.path.join(_here, '../../python/vyos')) - from configdep import check_dependency_graph - from defaults import directories +from graphlib import TopologicalSorter, CycleError # addon packages will need to specify the dependency directory -dependency_dir = os.path.join(directories['data'], - 'config-mode-dependencies') +data_dir = '/usr/share/vyos/' +dependency_dir = os.path.join(data_dir, 'config-mode-dependencies') + +def dict_merge(source, destination): + from copy import deepcopy + tmp = deepcopy(destination) + + for key, value in source.items(): + if key not in tmp: + tmp[key] = value + elif isinstance(source[key], dict): + tmp[key] = dict_merge(source[key], tmp[key]) + + return tmp + +def read_dependency_dict(dependency_dir: str = dependency_dir) -> dict: + res = {} + for dep_file in os.listdir(dependency_dir): + if not dep_file.endswith('.json'): + continue + path = os.path.join(dependency_dir, dep_file) + with open(path) as f: + d = json.load(f) + if dep_file == 'vyos-1x.json': + res = dict_merge(res, d) + else: + res = dict_merge(d, res) + + return res + +def graph_from_dependency_dict(d: dict) -> dict: + g = {} + for k in list(d): + g[k] = set() + # add the dependencies for every sub-case; should there be cases + # that are mutally exclusive in the future, the graphs will be + # distinguished + for el in list(d[k]): + g[k] |= set(d[k][el]) + + return g + +def is_acyclic(d: dict) -> bool: + g = graph_from_dependency_dict(d) + ts = TopologicalSorter(g) + try: + # get node iterator + order = ts.static_order() + # try iteration + _ = [*order] + except CycleError: + return False + + return True + +def check_dependency_graph(dependency_dir: str = dependency_dir, + supplement: str = None) -> bool: + d = read_dependency_dict(dependency_dir=dependency_dir) + if supplement is not None: + with open(supplement) as f: + d = dict_merge(json.load(f), d) + + return is_acyclic(d) def path_exists(s): if not os.path.exists(s): @@ -50,8 +103,10 @@ def main(): args = vars(parser.parse_args()) if not check_dependency_graph(**args): + print("dependency error: cycle exists") sys.exit(1) + print("dependency graph acyclic") sys.exit(0) if __name__ == '__main__': diff --git a/src/helpers/latest-image-url.py b/src/helpers/latest-image-url.py new file mode 100755 index 000000000..ea201ef7c --- /dev/null +++ b/src/helpers/latest-image-url.py @@ -0,0 +1,21 @@ +#!/usr/bin/env python3 + +import sys + +from vyos.configquery import ConfigTreeQuery +from vyos.version import get_remote_version + + +if __name__ == '__main__': + image_path = '' + + config = ConfigTreeQuery() + if config.exists('system update-check url'): + configured_url_version = config.value('system update-check url') + remote_url_list = get_remote_version(configured_url_version) + if remote_url_list: + image_path = remote_url_list[0].get('url') + else: + sys.exit(1) + + print(image_path) diff --git a/src/helpers/run-config-activation.py b/src/helpers/run-config-activation.py new file mode 100755 index 000000000..58293702a --- /dev/null +++ b/src/helpers/run-config-activation.py @@ -0,0 +1,83 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2024 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 re +import logging +from pathlib import Path +from argparse import ArgumentParser + +from vyos.compose_config import ComposeConfig +from vyos.compose_config import ComposeConfigError +from vyos.defaults import directories + +parser = ArgumentParser() +parser.add_argument('config_file', type=str, + help="configuration file to modify with system-specific settings") +parser.add_argument('--test-script', type=str, + help="test effect of named script") + +args = parser.parse_args() + +checkpoint_file = '/run/vyos-activate-checkpoint' +log_file = Path(directories['config']).joinpath('vyos-activate.log') + +logger = logging.getLogger(__name__) +fh = logging.FileHandler(log_file) +formatter = logging.Formatter('%(message)s') +fh.setFormatter(formatter) +logger.addHandler(fh) + +if 'vyos-activate-debug' in Path('/proc/cmdline').read_text(): + print(f'\nactivate-debug enabled: file {checkpoint_file}_* on error') + debug = checkpoint_file + logger.setLevel(logging.DEBUG) +else: + debug = None + logger.setLevel(logging.INFO) + +def sort_key(s: Path): + s = s.stem + pre, rem = re.match(r'(\d*)(?:-)?(.+)', s).groups() + return int(pre or 0), rem + +def file_ext(file_name: str) -> str: + """Return an identifier from file name for checkpoint file extension. + """ + return Path(file_name).stem + +script_dir = Path(directories['activate']) + +if args.test_script: + script_list = [script_dir.joinpath(args.test_script)] +else: + script_list = sorted(script_dir.glob('*.py'), key=sort_key) + +config_file = args.config_file +config_str = Path(config_file).read_text() + +compose = ComposeConfig(config_str, checkpoint_file=debug) + +for file in script_list: + file = file.as_posix() + logger.info(f'calling {file}') + try: + compose.apply_file(file, func_name='activate') + except ComposeConfigError as e: + if debug: + compose.write(f'{compose.checkpoint_file}_{file_ext(file)}') + logger.error(f'config-activation error in {file}: {e}') + +compose.write(config_file, with_version=True) diff --git a/src/helpers/run-config-migration.py b/src/helpers/run-config-migration.py index ce647ad0a..e6ce97363 100755 --- a/src/helpers/run-config-migration.py +++ b/src/helpers/run-config-migration.py @@ -1,86 +1,78 @@ -#!/usr/bin/python3 - -# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io> +#!/usr/bin/env python3 +# +# Copyright (C) 2019-2024 VyOS maintainers and contributors # -# This library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. +# 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 library is distributed in the hope that it will be useful, +# 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 -# Lesser General Public License for more details. +# 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 Lesser General Public License -# along with this library. If not, see <http://www.gnu.org/licenses/>. +# 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 argparse -import datetime - -from vyos.utils.process import cmd -from vyos.migrator import Migrator, VirtualMigrator - -def main(): - argparser = argparse.ArgumentParser( - formatter_class=argparse.RawTextHelpFormatter) - argparser.add_argument('config_file', type=str, - help="configuration file to migrate") - argparser.add_argument('--force', action='store_true', - help="Force calling of all migration scripts.") - argparser.add_argument('--set-vintage', type=str, - choices=['vyatta', 'vyos'], - help="Set the format for the config version footer in config" - " file:\n" - "set to 'vyatta':\n" - "(for '/* === vyatta-config-version ... */' format)\n" - "or 'vyos':\n" - "(for '// vyos-config-version ...' format).") - argparser.add_argument('--virtual', action='store_true', - help="Update the format of the trailing comments in" - " config file,\nfrom 'vyatta' to 'vyos'; no migration" - " scripts are run.") - args = argparser.parse_args() +import time +from argparse import ArgumentParser +from shutil import copyfile - config_file_name = args.config_file - force_on = args.force - vintage = args.set_vintage - virtual = args.virtual +from vyos.migrate import ConfigMigrate +from vyos.migrate import ConfigMigrateError - if not os.access(config_file_name, os.R_OK): - print("Read error: {}.".format(config_file_name)) - sys.exit(1) +parser = ArgumentParser() +parser.add_argument('config_file', type=str, + help="configuration file to migrate") +parser.add_argument('--test-script', type=str, + help="test named script") +parser.add_argument('--output-file', type=str, + help="write to named output file instead of config file") +parser.add_argument('--force', action='store_true', + help="force run of all migration scripts") - if not os.access(config_file_name, os.W_OK): - print("Write error: {}.".format(config_file_name)) - sys.exit(1) +args = parser.parse_args() - separator = "." - backup_file_name = separator.join([config_file_name, - '{0:%Y-%m-%d-%H%M%S}'.format(datetime.datetime.now()), - 'pre-migration']) +config_file = args.config_file +out_file = args.output_file +test_script = args.test_script +force = args.force - cmd(f'cp -p {config_file_name} {backup_file_name}') +if not os.access(config_file, os.R_OK): + print(f"Config file '{config_file}' not readable") + sys.exit(1) - if not virtual: - virtual_migration = VirtualMigrator(config_file_name) - virtual_migration.run() +if out_file is None: + if not os.access(config_file, os.W_OK): + print(f"Config file '{config_file}' not writeable") + sys.exit(1) +else: + try: + open(out_file, 'w').close() + except OSError: + print(f"Output file '{out_file}' not writeable") + sys.exit(1) - migration = Migrator(config_file_name, force=force_on) - migration.run() +config_migrate = ConfigMigrate(config_file, force=force, output_file=out_file) - if not migration.config_changed(): - os.remove(backup_file_name) - else: - virtual_migration = VirtualMigrator(config_file_name, - set_vintage=vintage) +if test_script: + # run_script and exit + config_migrate.run_script(test_script) + sys.exit(0) - virtual_migration.run() +backup = None +if out_file is None: + timestr = time.strftime("%Y%m%d-%H%M%S") + backup = f'{config_file}.{timestr}.pre-migration' + copyfile(config_file, backup) - if not virtual_migration.config_changed(): - os.remove(backup_file_name) +try: + config_migrate.run() +except ConfigMigrateError as e: + print(f'Error: {e}') + sys.exit(1) -if __name__ == '__main__': - main() +if backup is not None and not config_migrate.config_modified: + os.unlink(backup) diff --git a/src/helpers/vyos-config-encrypt.py b/src/helpers/vyos-config-encrypt.py new file mode 100755 index 000000000..84860bd6a --- /dev/null +++ b/src/helpers/vyos-config-encrypt.py @@ -0,0 +1,273 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2024 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 shutil +import sys + +from argparse import ArgumentParser +from cryptography.fernet import Fernet +from tempfile import NamedTemporaryFile +from tempfile import TemporaryDirectory + +from vyos.tpm import clear_tpm_key +from vyos.tpm import read_tpm_key +from vyos.tpm import write_tpm_key +from vyos.utils.io import ask_input, ask_yes_no +from vyos.utils.process import cmd + +persistpath_cmd = '/opt/vyatta/sbin/vyos-persistpath' +mount_paths = ['/config', '/opt/vyatta/etc/config'] +dm_device = '/dev/mapper/vyos_config' + +def is_opened(): + return os.path.exists(dm_device) + +def get_current_image(): + with open('/proc/cmdline', 'r') as f: + args = f.read().split(" ") + for arg in args: + if 'vyos-union' in arg: + k, v = arg.split("=") + path_split = v.split("/") + return path_split[-1] + return None + +def load_config(key): + if not key: + return + + persist_path = cmd(persistpath_cmd).strip() + image_name = get_current_image() + image_path = os.path.join(persist_path, 'luks', image_name) + + if not os.path.exists(image_path): + raise Exception("Encrypted config volume doesn't exist") + + if is_opened(): + print('Encrypted config volume is already mounted') + return + + with NamedTemporaryFile(dir='/dev/shm', delete=False) as f: + f.write(key) + key_file = f.name + + cmd(f'cryptsetup -q open {image_path} vyos_config --key-file={key_file}') + + for path in mount_paths: + cmd(f'mount /dev/mapper/vyos_config {path}') + cmd(f'chgrp -R vyattacfg {path}') + + os.unlink(key_file) + + return True + +def encrypt_config(key, recovery_key): + if is_opened(): + raise Exception('An encrypted config volume is already mapped') + + # Clear and write key to TPM + try: + clear_tpm_key() + except: + pass + write_tpm_key(key) + + persist_path = cmd(persistpath_cmd).strip() + size = ask_input('Enter size of encrypted config partition (MB): ', numeric_only=True, default=512) + + luks_folder = os.path.join(persist_path, 'luks') + + if not os.path.isdir(luks_folder): + os.mkdir(luks_folder) + + image_name = get_current_image() + image_path = os.path.join(luks_folder, image_name) + + # Create file for encrypted config + cmd(f'fallocate -l {size}M {image_path}') + + # Write TPM key for slot #1 + with NamedTemporaryFile(dir='/dev/shm', delete=False) as f: + f.write(key) + key_file = f.name + + # Format and add main key to volume + cmd(f'cryptsetup -q luksFormat {image_path} {key_file}') + + if recovery_key: + # Write recovery key for slot 2 + with NamedTemporaryFile(dir='/dev/shm', delete=False) as f: + f.write(recovery_key) + recovery_key_file = f.name + + cmd(f'cryptsetup -q luksAddKey {image_path} {recovery_key_file} --key-file={key_file}') + + # Open encrypted volume and format with ext4 + cmd(f'cryptsetup -q open {image_path} vyos_config --key-file={key_file}') + cmd('mkfs.ext4 /dev/mapper/vyos_config') + + with TemporaryDirectory() as d: + cmd(f'mount /dev/mapper/vyos_config {d}') + + # Move /config to encrypted volume + shutil.copytree('/config', d, copy_function=shutil.move, dirs_exist_ok=True) + + cmd(f'umount {d}') + + os.unlink(key_file) + + if recovery_key: + os.unlink(recovery_key_file) + + for path in mount_paths: + cmd(f'mount /dev/mapper/vyos_config {path}') + cmd(f'chgrp vyattacfg {path}') + + return True + +def decrypt_config(key): + if not key: + return + + persist_path = cmd(persistpath_cmd).strip() + image_name = get_current_image() + image_path = os.path.join(persist_path, 'luks', image_name) + + if not os.path.exists(image_path): + raise Exception("Encrypted config volume doesn't exist") + + key_file = None + + if not is_opened(): + with NamedTemporaryFile(dir='/dev/shm', delete=False) as f: + f.write(key) + key_file = f.name + + cmd(f'cryptsetup -q open {image_path} vyos_config --key-file={key_file}') + + # unmount encrypted volume mount points + for path in mount_paths: + if os.path.ismount(path): + cmd(f'umount {path}') + + # If /config is populated, move to /config.old + if len(os.listdir('/config')) > 0: + print('Moving existing /config folder to /config.old') + shutil.move('/config', '/config.old') + + # Temporarily mount encrypted volume and migrate files to /config on rootfs + with TemporaryDirectory() as d: + cmd(f'mount /dev/mapper/vyos_config {d}') + + # Move encrypted volume to /config + shutil.copytree(d, '/config', copy_function=shutil.move, dirs_exist_ok=True) + cmd(f'chgrp -R vyattacfg /config') + + cmd(f'umount {d}') + + # Close encrypted volume + cmd('cryptsetup -q close vyos_config') + + # Remove encrypted volume image file and key + if key_file: + os.unlink(key_file) + os.unlink(image_path) + + try: + clear_tpm_key() + except: + pass + + return True + +if __name__ == '__main__': + if len(sys.argv) < 2: + print("Must specify action.") + sys.exit(1) + + parser = ArgumentParser(description='Config encryption') + parser.add_argument('--disable', help='Disable encryption', action="store_true") + parser.add_argument('--enable', help='Enable encryption', action="store_true") + parser.add_argument('--load', help='Load encrypted config volume', action="store_true") + args = parser.parse_args() + + tpm_exists = os.path.exists('/sys/class/tpm/tpm0') + + key = None + recovery_key = None + need_recovery = False + + question_key_str = 'recovery key' if tpm_exists else 'key' + + if tpm_exists: + if args.enable: + key = Fernet.generate_key() + elif args.disable or args.load: + try: + key = read_tpm_key() + need_recovery = False + except: + print('Failed to read key from TPM, recovery key required') + need_recovery = True + else: + need_recovery = True + + if args.enable and not tpm_exists: + print('WARNING: VyOS will boot into a default config when encrypted without a TPM') + print('You will need to manually login with default credentials and use "encryption load"') + print('to mount the encrypted volume and use "load /config/config.boot"') + + if not ask_yes_no('Are you sure you want to proceed?'): + sys.exit(0) + + if need_recovery or (args.enable and not ask_yes_no(f'Automatically generate a {question_key_str}?', default=True)): + while True: + recovery_key = ask_input(f'Enter {question_key_str}:', default=None).encode() + + if len(recovery_key) >= 32: + break + + print('Invalid key - must be at least 32 characters, try again.') + else: + recovery_key = Fernet.generate_key() + + try: + if args.disable: + decrypt_config(key or recovery_key) + + print('Encrypted config volume has been disabled') + print('Contents have been migrated to /config on rootfs') + elif args.load: + load_config(key or recovery_key) + + print('Encrypted config volume has been mounted') + print('Use "load /config/config.boot" to load configuration') + elif args.enable and tpm_exists: + encrypt_config(key, recovery_key) + + print('Encrypted config volume has been enabled with TPM') + print('Backup the recovery key in a safe place!') + print('Recovery key: ' + recovery_key.decode()) + elif args.enable: + encrypt_config(recovery_key) + + print('Encrypted config volume has been enabled without TPM') + print('Backup the key in a safe place!') + print('Key: ' + recovery_key.decode()) + except Exception as e: + word = 'decrypt' if args.disable or args.load else 'encrypt' + print(f'Failed to {word} config: {e}') diff --git a/src/helpers/vyos-domain-resolver.py b/src/helpers/vyos-domain-resolver.py deleted file mode 100755 index 05aae48ff..000000000 --- a/src/helpers/vyos-domain-resolver.py +++ /dev/null @@ -1,176 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2022-2024 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 json -import time - -from vyos.configdict import dict_merge -from vyos.configquery import ConfigTreeQuery -from vyos.firewall import fqdn_config_parse -from vyos.firewall import fqdn_resolve -from vyos.utils.commit import commit_in_progress -from vyos.utils.dict import dict_search_args -from vyos.utils.process import cmd -from vyos.utils.process import run -from vyos.xml_ref import get_defaults - -base = ['firewall'] -timeout = 300 -cache = False - -domain_state = {} - -ipv4_tables = { - 'ip vyos_mangle', - 'ip vyos_filter', - 'ip vyos_nat' -} - -ipv6_tables = { - 'ip6 vyos_mangle', - 'ip6 vyos_filter' -} - -def get_config(conf): - firewall = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True, - no_tag_node_value_mangle=True) - - default_values = get_defaults(base, get_first_key=True) - - firewall = dict_merge(default_values, firewall) - - global timeout, cache - - if 'resolver_interval' in firewall: - timeout = int(firewall['resolver_interval']) - - if 'resolver_cache' in firewall: - cache = True - - fqdn_config_parse(firewall) - - return firewall - -def resolve(domains, ipv6=False): - global domain_state - - ip_list = set() - - for domain in domains: - resolved = fqdn_resolve(domain, ipv6=ipv6) - - if resolved and cache: - domain_state[domain] = resolved - elif not resolved: - if domain not in domain_state: - continue - resolved = domain_state[domain] - - ip_list = ip_list | resolved - return ip_list - -def nft_output(table, set_name, ip_list): - output = [f'flush set {table} {set_name}'] - if ip_list: - ip_str = ','.join(ip_list) - output.append(f'add element {table} {set_name} {{ {ip_str} }}') - return output - -def nft_valid_sets(): - try: - valid_sets = [] - sets_json = cmd('nft --json list sets') - sets_obj = json.loads(sets_json) - - for obj in sets_obj['nftables']: - if 'set' in obj: - family = obj['set']['family'] - table = obj['set']['table'] - name = obj['set']['name'] - valid_sets.append((f'{family} {table}', name)) - - return valid_sets - except: - return [] - -def update(firewall): - conf_lines = [] - count = 0 - - valid_sets = nft_valid_sets() - - domain_groups = dict_search_args(firewall, 'group', 'domain_group') - if domain_groups: - for set_name, domain_config in domain_groups.items(): - if 'address' not in domain_config: - continue - - nft_set_name = f'D_{set_name}' - domains = domain_config['address'] - - ip_list = resolve(domains, ipv6=False) - for table in ipv4_tables: - if (table, nft_set_name) in valid_sets: - conf_lines += nft_output(table, nft_set_name, ip_list) - - ip6_list = resolve(domains, ipv6=True) - for table in ipv6_tables: - if (table, nft_set_name) in valid_sets: - conf_lines += nft_output(table, nft_set_name, ip6_list) - count += 1 - - for set_name, domain in firewall['ip_fqdn'].items(): - table = 'ip vyos_filter' - nft_set_name = f'FQDN_{set_name}' - - ip_list = resolve([domain], ipv6=False) - - if (table, nft_set_name) in valid_sets: - conf_lines += nft_output(table, nft_set_name, ip_list) - count += 1 - - for set_name, domain in firewall['ip6_fqdn'].items(): - table = 'ip6 vyos_filter' - nft_set_name = f'FQDN_{set_name}' - - ip_list = resolve([domain], ipv6=True) - if (table, nft_set_name) in valid_sets: - conf_lines += nft_output(table, nft_set_name, ip_list) - count += 1 - - nft_conf_str = "\n".join(conf_lines) + "\n" - code = run(f'nft --file -', input=nft_conf_str) - - print(f'Updated {count} sets - result: {code}') - -if __name__ == '__main__': - print(f'VyOS domain resolver') - - count = 1 - while commit_in_progress(): - if ( count % 60 == 0 ): - print(f'Commit still in progress after {count}s - waiting') - count += 1 - time.sleep(1) - - conf = ConfigTreeQuery() - firewall = get_config(conf) - - print(f'interval: {timeout}s - cache: {cache}') - - while True: - update(firewall) - time.sleep(timeout) diff --git a/src/helpers/vyos-load-balancer.py b/src/helpers/vyos-load-balancer.py new file mode 100755 index 000000000..2f07160b4 --- /dev/null +++ b/src/helpers/vyos-load-balancer.py @@ -0,0 +1,312 @@ +#!/usr/bin/python3 + +# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io> +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see <http://www.gnu.org/licenses/>. + +import json +import os +import signal +import sys +import time + +from vyos.config import Config +from vyos.template import render +from vyos.utils.commit import commit_in_progress +from vyos.utils.network import get_interface_address +from vyos.utils.process import rc_cmd +from vyos.utils.process import run +from vyos.xml_ref import get_defaults +from vyos.wanloadbalance import health_ping_host +from vyos.wanloadbalance import health_ping_host_ttl +from vyos.wanloadbalance import parse_dhcp_nexthop +from vyos.wanloadbalance import parse_ppp_nexthop + +nftables_wlb_conf = '/run/nftables_wlb.conf' +wlb_status_file = '/run/wlb_status.json' +wlb_pid_file = '/run/wlb_daemon.pid' +sleep_interval = 5 # Main loop sleep interval + +def health_check(ifname, conf, state, test_defaults): + # Run health tests for interface + + if get_ipv4_address(ifname) is None: + return False + + if 'test' not in conf: + resp_time = test_defaults['resp-time'] + target = conf['nexthop'] + + if target == 'dhcp': + target = state['dhcp_nexthop'] + + if not target: + return False + + return health_ping_host(target, ifname, wait_time=resp_time) + + for test_id, test_conf in conf['test'].items(): + check_type = test_conf['type'] + + if check_type == 'ping': + resp_time = test_conf['resp_time'] + target = test_conf['target'] + if not health_ping_host(target, ifname, wait_time=resp_time): + return False + elif check_type == 'ttl': + target = test_conf['target'] + ttl_limit = test_conf['ttl_limit'] + if not health_ping_host_ttl(target, ifname, ttl_limit=ttl_limit): + return False + elif check_type == 'user-defined': + script = test_conf['test_script'] + rc = run(script) + if rc != 0: + return False + + return True + +def on_state_change(lb, ifname, state): + # Run hook on state change + if 'hook' in lb: + script_path = os.path.join('/config/scripts/', lb['hook']) + env = { + 'WLB_INTERFACE_NAME': ifname, + 'WLB_INTERFACE_STATE': 'ACTIVE' if state else 'FAILED' + } + + code = run(script_path, env=env) + if code != 0: + print('WLB hook returned non-zero error code') + + print(f'INFO: State change: {ifname} -> {state}') + +def get_ipv4_address(ifname): + # Get primary ipv4 address on interface (for source nat) + addr_json = get_interface_address(ifname) + if 'addr_info' in addr_json and len(addr_json['addr_info']) > 0: + for addr_info in addr_json['addr_info']: + if addr_info['family'] == 'inet': + if 'local' in addr_info: + return addr_json['addr_info'][0]['local'] + return None + +def dynamic_nexthop_update(lb, ifname): + # Update on DHCP/PPP address/nexthop changes + # Return True if nftables needs to be updated - IP change + + if 'dhcp_nexthop' in lb['health_state'][ifname]: + if ifname[:5] == 'pppoe': + dhcp_nexthop_addr = parse_ppp_nexthop(ifname) + else: + dhcp_nexthop_addr = parse_dhcp_nexthop(ifname) + + table_num = lb['health_state'][ifname]['table_number'] + + if dhcp_nexthop_addr and lb['health_state'][ifname]['dhcp_nexthop'] != dhcp_nexthop_addr: + lb['health_state'][ifname]['dhcp_nexthop'] = dhcp_nexthop_addr + run(f'ip route replace table {table_num} default dev {ifname} via {dhcp_nexthop_addr}') + + if_addr = get_ipv4_address(ifname) + if if_addr and if_addr != lb['health_state'][ifname]['if_addr']: + lb['health_state'][ifname]['if_addr'] = if_addr + return True + + return False + +def nftables_update(lb): + # Atomically reload nftables table from template + if not os.path.exists(nftables_wlb_conf): + lb['first_install'] = True + elif 'first_install' in lb: + del lb['first_install'] + + render(nftables_wlb_conf, 'load-balancing/nftables-wlb.j2', lb) + + rc, out = rc_cmd(f'nft -f {nftables_wlb_conf}') + + if rc != 0: + print('ERROR: Failed to apply WLB nftables config') + print('Output:', out) + return False + + return True + +def cleanup(lb): + if 'interface_health' in lb: + index = 1 + for ifname, health_conf in lb['interface_health'].items(): + table_num = lb['mark_offset'] + index + run(f'ip route del table {table_num} default') + run(f'ip rule del fwmark {hex(table_num)} table {table_num}') + index += 1 + + run(f'nft delete table ip vyos_wanloadbalance') + +def get_config(): + conf = Config() + base = ['load-balancing', 'wan'] + lb = conf.get_config_dict(base, key_mangling=('-', '_'), + get_first_key=True, with_recursive_defaults=True) + + lb['test_defaults'] = get_defaults(base + ['interface-health', 'A', 'test', 'B'], get_first_key=True) + + return lb + +if __name__ == '__main__': + while commit_in_progress(): + print("Notice: Waiting for commit to complete...") + time.sleep(1) + + lb = get_config() + + lb['health_state'] = {} + lb['mark_offset'] = 0xc8 + + # Create state dicts, interface address and nexthop, install routes and ip rules + if 'interface_health' in lb: + index = 1 + for ifname, health_conf in lb['interface_health'].items(): + table_num = lb['mark_offset'] + index + addr = get_ipv4_address(ifname) + lb['health_state'][ifname] = { + 'if_addr': addr, + 'failure_count': 0, + 'success_count': 0, + 'last_success': 0, + 'last_failure': 0, + 'state': addr is not None, + 'state_changed': False, + 'table_number': table_num, + 'mark': hex(table_num) + } + + if health_conf['nexthop'] == 'dhcp': + lb['health_state'][ifname]['dhcp_nexthop'] = None + + dynamic_nexthop_update(lb, ifname) + else: + run(f'ip route replace table {table_num} default dev {ifname} via {health_conf["nexthop"]}') + + run(f'ip rule add fwmark {hex(table_num)} table {table_num}') + + index += 1 + + nftables_update(lb) + + run('ip route flush cache') + + if 'flush_connections' in lb: + run('conntrack --delete') + run('conntrack -F expect') + + with open(wlb_status_file, 'w') as f: + f.write(json.dumps(lb['health_state'])) + + # Signal handler SIGUSR2 -> dhcpcd update + def handle_sigusr2(signum, frame): + for ifname, health_conf in lb['interface_health'].items(): + if 'nexthop' in health_conf and health_conf['nexthop'] == 'dhcp': + retval = dynamic_nexthop_update(lb, ifname) + + if retval: + nftables_update(lb) + + # Signal handler SIGTERM -> exit + def handle_sigterm(signum, frame): + if os.path.exists(wlb_status_file): + os.unlink(wlb_status_file) + + if os.path.exists(wlb_pid_file): + os.unlink(wlb_pid_file) + + if os.path.exists(nftables_wlb_conf): + os.unlink(nftables_wlb_conf) + + cleanup(lb) + sys.exit(0) + + signal.signal(signal.SIGUSR2, handle_sigusr2) + signal.signal(signal.SIGINT, handle_sigterm) + signal.signal(signal.SIGTERM, handle_sigterm) + + with open(wlb_pid_file, 'w') as f: + f.write(str(os.getpid())) + + # Main loop + + try: + while True: + ip_change = False + + if 'interface_health' in lb: + for ifname, health_conf in lb['interface_health'].items(): + state = lb['health_state'][ifname] + + result = health_check(ifname, health_conf, state=state, test_defaults=lb['test_defaults']) + + state_changed = result != state['state'] + state['state_changed'] = False + + if result: + state['failure_count'] = 0 + state['success_count'] += 1 + state['last_success'] = time.time() + if state_changed and state['success_count'] >= int(health_conf['success_count']): + state['state'] = True + state['state_changed'] = True + elif not result: + state['failure_count'] += 1 + state['success_count'] = 0 + state['last_failure'] = time.time() + if state_changed and state['failure_count'] >= int(health_conf['failure_count']): + state['state'] = False + state['state_changed'] = True + + if state['state_changed']: + state['if_addr'] = get_ipv4_address(ifname) + on_state_change(lb, ifname, state['state']) + + if dynamic_nexthop_update(lb, ifname): + ip_change = True + + if any(state['state_changed'] for ifname, state in lb['health_state'].items()): + if not nftables_update(lb): + break + + run('ip route flush cache') + + if 'flush_connections' in lb: + run('conntrack --delete') + run('conntrack -F expect') + + with open(wlb_status_file, 'w') as f: + f.write(json.dumps(lb['health_state'])) + elif ip_change: + nftables_update(lb) + + time.sleep(sleep_interval) + except Exception as e: + print('WLB ERROR:', e) + + if os.path.exists(wlb_status_file): + os.unlink(wlb_status_file) + + if os.path.exists(wlb_pid_file): + os.unlink(wlb_pid_file) + + if os.path.exists(nftables_wlb_conf): + os.unlink(nftables_wlb_conf) + + cleanup(lb) diff --git a/src/helpers/vyos-load-config.py b/src/helpers/vyos-load-config.py index 4ec865454..16083fd41 100755 --- a/src/helpers/vyos-load-config.py +++ b/src/helpers/vyos-load-config.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2019 VyOS maintainers and contributors +# Copyright (C) 2019-2024 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 @@ -30,7 +30,8 @@ import tempfile import vyos.defaults import vyos.remote from vyos.configsource import ConfigSourceSession, VyOSError -from vyos.migrator import Migrator, VirtualMigrator, MigratorError +from vyos.migrate import ConfigMigrate +from vyos.migrate import ConfigMigrateError class LoadConfig(ConfigSourceSession): """A subclass for calling 'loadFile'. @@ -81,22 +82,16 @@ with tempfile.NamedTemporaryFile() as fp: with open(fp.name, 'w') as fd: fd.write(config_string) - virtual_migration = VirtualMigrator(fp.name) + config_migrate = ConfigMigrate(fp.name) try: - virtual_migration.run() - except MigratorError as err: - sys.exit('{}'.format(err)) - - migration = Migrator(fp.name) - try: - migration.run() - except MigratorError as err: - sys.exit('{}'.format(err)) + config_migrate.run() + except ConfigMigrateError as err: + sys.exit(err) try: config.load_config(fp.name) except VyOSError as err: - sys.exit('{}'.format(err)) + sys.exit(err) if config.session_changed(): print("Load complete. Use 'commit' to make changes effective.") diff --git a/src/helpers/vyos-merge-config.py b/src/helpers/vyos-merge-config.py index 35424626e..5ef845ac2 100755 --- a/src/helpers/vyos-merge-config.py +++ b/src/helpers/vyos-merge-config.py @@ -22,7 +22,8 @@ import vyos.remote from vyos.config import Config from vyos.configtree import ConfigTree -from vyos.migrator import Migrator, VirtualMigrator +from vyos.migrate import ConfigMigrate +from vyos.migrate import ConfigMigrateError from vyos.utils.process import cmd from vyos.utils.process import DEVNULL @@ -61,15 +62,11 @@ with tempfile.NamedTemporaryFile() as file_to_migrate: with open(file_to_migrate.name, 'w') as fd: fd.write(config_file) - virtual_migration = VirtualMigrator(file_to_migrate.name) - virtual_migration.run() - - migration = Migrator(file_to_migrate.name) - migration.run() - - if virtual_migration.config_changed() or migration.config_changed(): - with open(file_to_migrate.name, 'r') as fd: - config_file = fd.read() + config_migrate = ConfigMigrate(file_to_migrate.name) + try: + config_migrate.run() + except ConfigMigrateError as e: + sys.exit(e) merge_config_tree = ConfigTree(config_file) diff --git a/src/helpers/vyos-save-config.py b/src/helpers/vyos-save-config.py index 518bd9864..fa2ea0ce4 100755 --- a/src/helpers/vyos-save-config.py +++ b/src/helpers/vyos-save-config.py @@ -23,7 +23,7 @@ from argparse import ArgumentParser from vyos.config import Config from vyos.remote import urlc -from vyos.component_version import system_footer +from vyos.component_version import add_system_version from vyos.defaults import directories DEFAULT_CONFIG_PATH = os.path.join(directories['config'], 'config.boot') @@ -50,14 +50,13 @@ if re.match(r'\w+:/', save_file): config = Config() ct = config.get_config_tree(effective=True) +# pylint: disable=consider-using-with write_file = save_file if remote_save is None else NamedTemporaryFile(delete=False).name -with open(write_file, 'w') as f: - # config_tree is None before boot configuration is complete; - # automated saves should check boot_configuration_complete - if ct is not None: - f.write(ct.to_string()) - f.write("\n") - f.write(system_footer()) + +# config_tree is None before boot configuration is complete; +# automated saves should check boot_configuration_complete +config_str = None if ct is None else ct.to_string() +add_system_version(config_str, write_file) if json_file is not None and ct is not None: try: diff --git a/src/helpers/vyos_net_name b/src/helpers/vyos_net_name index 8c0992414..f5de182c6 100755 --- a/src/helpers/vyos_net_name +++ b/src/helpers/vyos_net_name @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2021-2023 VyOS maintainers and contributors +# Copyright (C) 2021-2024 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 @@ -18,42 +18,35 @@ import os import re import time import logging +import logging.handlers import tempfile -import threading +from pathlib import Path from sys import argv from vyos.configtree import ConfigTree from vyos.defaults import directories from vyos.utils.process import cmd from vyos.utils.boot import boot_configuration_complete -from vyos.migrator import VirtualMigrator +from vyos.utils.locking import Lock +from vyos.migrate import ConfigMigrate +# Define variables vyos_udev_dir = directories['vyos_udev_dir'] -vyos_log_dir = '/run/udev/log' -vyos_log_file = os.path.join(vyos_log_dir, 'vyos-net-name') - config_path = '/opt/vyatta/etc/config/config.boot' -lock = threading.Lock() - -try: - os.mkdir(vyos_log_dir) -except FileExistsError: - pass - -logging.basicConfig(filename=vyos_log_file, level=logging.DEBUG) def is_available(intfs: dict, intf_name: str) -> bool: - """ Check if interface name is already assigned - """ + """Check if interface name is already assigned""" if intf_name in list(intfs.values()): return False return True + def find_available(intfs: dict, prefix: str) -> str: - """ Find lowest indexed iterface name that is not assigned - """ - index_list = [int(x.replace(prefix, '')) for x in list(intfs.values()) if prefix in x] + """Find lowest indexed iterface name that is not assigned""" + index_list = [ + int(x.replace(prefix, '')) for x in list(intfs.values()) if prefix in x + ] index_list.sort() # find 'holes' in list, if any missing = sorted(set(range(index_list[0], index_list[-1])) - set(index_list)) @@ -62,21 +55,22 @@ def find_available(intfs: dict, prefix: str) -> str: return f'{prefix}{len(index_list)}' + def mod_ifname(ifname: str) -> str: - """ Check interface with names eX and return ifname on the next format eth{ifindex} - 2 - """ - if re.match("^e[0-9]+$", ifname): - intf = ifname.split("e") + """Check interface with names eX and return ifname on the next format eth{ifindex} - 2""" + if re.match('^e[0-9]+$', ifname): + intf = ifname.split('e') if intf[1]: if int(intf[1]) >= 2: - return "eth" + str(int(intf[1]) - 2) + return 'eth' + str(int(intf[1]) - 2) else: - return "eth" + str(intf[1]) + return 'eth' + str(intf[1]) return ifname + def get_biosdevname(ifname: str) -> str: - """ Use legacy vyatta-biosdevname to query for name + """Use legacy vyatta-biosdevname to query for name This is carried over for compatability only, and will likely be dropped going forward. @@ -95,11 +89,12 @@ def get_biosdevname(ifname: str) -> str: try: biosname = cmd(f'/sbin/biosdevname --policy all_ethN -i {ifname}') except Exception as e: - logging.error(f'biosdevname error: {e}') + logger.error(f'biosdevname error: {e}') biosname = '' return intf if biosname == '' else biosname + def leave_rescan_hint(intf_name: str, hwid: str): """Write interface information reported by udev @@ -112,18 +107,18 @@ def leave_rescan_hint(intf_name: str, hwid: str): except FileExistsError: pass except Exception as e: - logging.critical(f"Error creating rescan hint directory: {e}") + logger.critical(f'Error creating rescan hint directory: {e}') exit(1) try: with open(os.path.join(vyos_udev_dir, intf_name), 'w') as f: f.write(hwid) except OSError as e: - logging.critical(f"OSError {e}") + logger.critical(f'OSError {e}') + def get_configfile_interfaces() -> dict: - """Read existing interfaces from config file - """ + """Read existing interfaces from config file""" interfaces: dict = {} if not os.path.isfile(config_path): @@ -134,28 +129,31 @@ def get_configfile_interfaces() -> dict: with open(config_path) as f: config_file = f.read() except OSError as e: - logging.critical(f"OSError {e}") + logger.critical(f'OSError {e}') exit(1) try: config = ConfigTree(config_file) except Exception: try: - logging.debug(f"updating component version string syntax") + logger.debug('updating component version string syntax') # this will update the component version string syntax, # required for updates 1.2 --> 1.3/1.4 with tempfile.NamedTemporaryFile() as fp: with open(fp.name, 'w') as fd: fd.write(config_file) - virtual_migration = VirtualMigrator(fp.name) - virtual_migration.run() + config_migrate = ConfigMigrate(fp.name) + if config_migrate.syntax_update_needed(): + config_migrate.update_syntax() + config_migrate.write_config() with open(fp.name) as fd: config_file = fd.read() config = ConfigTree(config_file) except Exception as e: - logging.critical(f"ConfigTree error: {e}") + logger.critical(f'ConfigTree error: {e}') + exit(1) base = ['interfaces', 'ethernet'] if config.exists(base): @@ -163,11 +161,13 @@ def get_configfile_interfaces() -> dict: for intf in eth_intfs: path = base + [intf, 'hw-id'] if not config.exists(path): - logging.warning(f"no 'hw-id' entry for {intf}") + logger.warning(f"no 'hw-id' entry for {intf}") continue hwid = config.return_value(path) if hwid in list(interfaces): - logging.warning(f"multiple entries for {hwid}: {interfaces[hwid]}, {intf}") + logger.warning( + f'multiple entries for {hwid}: {interfaces[hwid]}, {intf}' + ) continue interfaces[hwid] = intf @@ -177,21 +177,23 @@ def get_configfile_interfaces() -> dict: for intf in wlan_intfs: path = base + [intf, 'hw-id'] if not config.exists(path): - logging.warning(f"no 'hw-id' entry for {intf}") + logger.warning(f"no 'hw-id' entry for {intf}") continue hwid = config.return_value(path) if hwid in list(interfaces): - logging.warning(f"multiple entries for {hwid}: {interfaces[hwid]}, {intf}") + logger.warning( + f'multiple entries for {hwid}: {interfaces[hwid]}, {intf}' + ) continue interfaces[hwid] = intf - logging.debug(f"config file entries: {interfaces}") + logger.debug(f'config file entries: {interfaces}') return interfaces + def add_assigned_interfaces(intfs: dict): - """Add interfaces found by previous invocation of udev rule - """ + """Add interfaces found by previous invocation of udev rule""" if not os.path.isdir(vyos_udev_dir): return @@ -201,55 +203,74 @@ def add_assigned_interfaces(intfs: dict): with open(path) as f: hwid = f.read().rstrip() except OSError as e: - logging.error(f"OSError {e}") + logger.error(f'OSError {e}') continue intfs[hwid] = intf + def on_boot_event(intf_name: str, hwid: str, predefined: str = '') -> str: - """Called on boot by vyos-router: 'coldplug' in vyatta_net_name - """ - logging.info(f"lookup {intf_name}, {hwid}") + """Called on boot by vyos-router: 'coldplug' in vyatta_net_name""" + logger.info(f'lookup {intf_name}, {hwid}') interfaces = get_configfile_interfaces() - logging.debug(f"config file interfaces are {interfaces}") + logger.debug(f'config file interfaces are {interfaces}') if hwid in list(interfaces): - logging.info(f"use mapping from config file: '{hwid}' -> '{interfaces[hwid]}'") + logger.info(f"use mapping from config file: '{hwid}' -> '{interfaces[hwid]}'") return interfaces[hwid] add_assigned_interfaces(interfaces) - logging.debug(f"adding assigned interfaces: {interfaces}") + logger.debug(f'adding assigned interfaces: {interfaces}') if predefined: newname = predefined - logging.info(f"predefined interface name for '{intf_name}' is '{newname}'") + logger.info(f"predefined interface name for '{intf_name}' is '{newname}'") else: newname = get_biosdevname(intf_name) - logging.info(f"biosdevname returned '{newname}' for '{intf_name}'") + logger.info(f"biosdevname returned '{newname}' for '{intf_name}'") if not is_available(interfaces, newname): prefix = re.sub(r'\d+$', '', newname) newname = find_available(interfaces, prefix) - logging.info(f"new name for '{intf_name}' is '{newname}'") + logger.info(f"new name for '{intf_name}' is '{newname}'") leave_rescan_hint(newname, hwid) return newname + def hotplug_event(): # Not yet implemented, since interface-rescan will only be run on boot. pass -if len(argv) > 3: - predef_name = argv[3] -else: - predef_name = '' - -lock.acquire() -if not boot_configuration_complete(): - res = on_boot_event(argv[1], argv[2], predefined=predef_name) - logging.debug(f"on boot, returned name is {res}") - print(res) -else: - logging.debug("boot configuration complete") -lock.release() + +if __name__ == '__main__': + # Set up logging to syslog + syslog_handler = logging.handlers.SysLogHandler(address='/dev/log') + formatter = logging.Formatter(f'{Path(__file__).name}: %(message)s') + syslog_handler.setFormatter(formatter) + + logger = logging.getLogger() + logger.addHandler(syslog_handler) + logger.setLevel(logging.DEBUG) + + logger.debug(f'Started with arguments: {argv}') + + if len(argv) > 3: + predef_name = argv[3] + else: + predef_name = '' + + lock = Lock('vyos_net_name') + # Wait 60 seconds for other running scripts to finish + lock.acquire(60) + + if not boot_configuration_complete(): + res = on_boot_event(argv[1], argv[2], predefined=predef_name) + logger.debug(f'on boot, returned name is {res}') + print(res) + else: + logger.debug('boot configuration complete') + + lock.release() + logger.debug('Finished') |