diff options
Diffstat (limited to 'src/conf_mode')
| -rwxr-xr-x | src/conf_mode/firewall.py | 21 | ||||
| -rwxr-xr-x | src/conf_mode/nat.py | 20 | ||||
| -rwxr-xr-x | src/conf_mode/pki.py | 33 | ||||
| -rwxr-xr-x | src/conf_mode/policy_local-route.py | 45 | ||||
| -rwxr-xr-x | src/conf_mode/protocols_static.py | 2 | ||||
| -rwxr-xr-x | src/conf_mode/service_monitoring_node-exporter.py | 101 | ||||
| -rwxr-xr-x | src/conf_mode/vpn_ipsec.py | 13 |
7 files changed, 218 insertions, 17 deletions
diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py index 5638a9668..ffbd915a2 100755 --- a/src/conf_mode/firewall.py +++ b/src/conf_mode/firewall.py @@ -36,11 +36,15 @@ from vyos.utils.process import cmd from vyos.utils.process import rc_cmd from vyos import ConfigError from vyos import airbag +from pathlib import Path from subprocess import run as subp_run airbag.enable() nftables_conf = '/run/nftables.conf' +domain_resolver_usage = '/run/use-vyos-domain-resolver-firewall' +domain_resolver_usage_nat = '/run/use-vyos-domain-resolver-nat' + sysctl_file = r'/run/sysctl/10-vyos-firewall.conf' valid_groups = [ @@ -128,7 +132,7 @@ def get_config(config=None): firewall['geoip_updated'] = geoip_updated(conf, firewall) - fqdn_config_parse(firewall) + fqdn_config_parse(firewall, 'firewall') set_dependents('conntrack', conf) @@ -570,12 +574,15 @@ def apply(firewall): call_dependents() - # T970 Enable a resolver (systemd daemon) that checks - # domain-group/fqdn addresses and update entries for domains by timeout - # If router loaded without internet connection or for synchronization - domain_action = 'stop' - if dict_search_args(firewall, 'group', 'domain_group') or firewall['ip_fqdn'] or firewall['ip6_fqdn']: - domain_action = 'restart' + ## DOMAIN RESOLVER + domain_action = 'restart' + if dict_search_args(firewall, 'group', 'domain_group') or firewall['ip_fqdn'].items() or firewall['ip6_fqdn'].items(): + text = f'# Automatically generated by firewall.py\nThis file indicates that vyos-domain-resolver service is used by the firewall.\n' + Path(domain_resolver_usage).write_text(text) + else: + Path(domain_resolver_usage).unlink(missing_ok=True) + if not Path('/run').glob('use-vyos-domain-resolver*'): + domain_action = 'stop' call(f'systemctl {domain_action} vyos-domain-resolver.service') if firewall['geoip_updated']: diff --git a/src/conf_mode/nat.py b/src/conf_mode/nat.py index 39803fa02..98b2f3f29 100755 --- a/src/conf_mode/nat.py +++ b/src/conf_mode/nat.py @@ -26,10 +26,13 @@ from vyos.template import is_ip_network from vyos.utils.kernel import check_kmod from vyos.utils.dict import dict_search from vyos.utils.dict import dict_search_args +from vyos.utils.file import write_file from vyos.utils.process import cmd from vyos.utils.process import run +from vyos.utils.process import call from vyos.utils.network import is_addr_assigned from vyos.utils.network import interface_exists +from vyos.firewall import fqdn_config_parse from vyos import ConfigError from vyos import airbag @@ -39,6 +42,8 @@ k_mod = ['nft_nat', 'nft_chain_nat'] nftables_nat_config = '/run/nftables_nat.conf' nftables_static_nat_conf = '/run/nftables_static-nat-rules.nft' +domain_resolver_usage = '/run/use-vyos-domain-resolver-nat' +domain_resolver_usage_firewall = '/run/use-vyos-domain-resolver-firewall' valid_groups = [ 'address_group', @@ -71,6 +76,8 @@ def get_config(config=None): if 'dynamic_group' in nat['firewall_group']: del nat['firewall_group']['dynamic_group'] + fqdn_config_parse(nat, 'nat') + return nat def verify_rule(config, err_msg, groups_dict): @@ -251,6 +258,19 @@ def apply(nat): call_dependents() + # DOMAIN RESOLVER + if nat and 'deleted' not in nat: + domain_action = 'restart' + if nat['ip_fqdn'].items(): + text = f'# Automatically generated by nat.py\nThis file indicates that vyos-domain-resolver service is used by nat.\n' + write_file(domain_resolver_usage, text) + elif os.path.exists(domain_resolver_usage): + os.unlink(domain_resolver_usage) + if not os.path.exists(domain_resolver_usage_firewall): + # Firewall not using domain resolver + domain_action = 'stop' + call(f'systemctl {domain_action} vyos-domain-resolver.service') + return None if __name__ == '__main__': diff --git a/src/conf_mode/pki.py b/src/conf_mode/pki.py index 215b22b37..233d73ba8 100755 --- a/src/conf_mode/pki.py +++ b/src/conf_mode/pki.py @@ -27,6 +27,7 @@ from vyos.configdict import node_changed from vyos.configdiff import Diff from vyos.configdiff import get_config_diff from vyos.defaults import directories +from vyos.pki import encode_certificate from vyos.pki import is_ca_certificate from vyos.pki import load_certificate from vyos.pki import load_public_key @@ -36,9 +37,11 @@ from vyos.pki import load_private_key from vyos.pki import load_crl from vyos.pki import load_dh_parameters from vyos.utils.boot import boot_configuration_complete +from vyos.utils.configfs import add_cli_node from vyos.utils.dict import dict_search from vyos.utils.dict import dict_search_args from vyos.utils.dict import dict_search_recursive +from vyos.utils.file import read_file from vyos.utils.process import call from vyos.utils.process import cmd from vyos.utils.process import is_systemd_service_active @@ -446,9 +449,37 @@ def generate(pki): # Get foldernames under vyos_certbot_dir which each represent a certbot cert if os.path.exists(f'{vyos_certbot_dir}/live'): for cert in certbot_list_on_disk: + # ACME certificate is no longer in use by CLI remove it if cert not in certbot_list: - # certificate is no longer active on the CLI - remove it certbot_delete(cert) + continue + # ACME not enabled for individual certificate - bail out early + if 'acme' not in pki['certificate'][cert]: + continue + + # Read in ACME certificate chain information + tmp = read_file(f'{vyos_certbot_dir}/live/{cert}/chain.pem') + tmp = load_certificate(tmp, wrap_tags=False) + cert_chain_base64 = "".join(encode_certificate(tmp).strip().split("\n")[1:-1]) + + # Check if CA chain certificate is already present on CLI to avoid adding + # a duplicate. This only checks for manual added CA certificates and not + # auto added ones with the AUTOCHAIN_ prefix + autochain_prefix = 'AUTOCHAIN_' + ca_cert_present = False + if 'ca' in pki: + for ca_base64, cli_path in dict_search_recursive(pki['ca'], 'certificate'): + # Ignore automatic added CA certificates + if any(item.startswith(autochain_prefix) for item in cli_path): + continue + if cert_chain_base64 == ca_base64: + ca_cert_present = True + + if not ca_cert_present: + tmp = dict_search_args(pki, 'ca', f'{autochain_prefix}{cert}', 'certificate') + if not bool(tmp) or tmp != cert_chain_base64: + print(f'Adding/replacing automatically imported CA certificate for "{cert}" ...') + add_cli_node(['pki', 'ca', f'{autochain_prefix}{cert}', 'certificate'], value=cert_chain_base64) return None diff --git a/src/conf_mode/policy_local-route.py b/src/conf_mode/policy_local-route.py index 331fd972d..9be2bc227 100755 --- a/src/conf_mode/policy_local-route.py +++ b/src/conf_mode/policy_local-route.py @@ -54,6 +54,7 @@ def get_config(config=None): dst = leaf_node_changed(conf, base_rule + [rule, 'destination', 'address']) dst_port = leaf_node_changed(conf, base_rule + [rule, 'destination', 'port']) table = leaf_node_changed(conf, base_rule + [rule, 'set', 'table']) + vrf = leaf_node_changed(conf, base_rule + [rule, 'set', 'vrf']) proto = leaf_node_changed(conf, base_rule + [rule, 'protocol']) rule_def = {} if src: @@ -70,6 +71,8 @@ def get_config(config=None): rule_def = dict_merge({'destination': {'port': dst_port}}, rule_def) if table: rule_def = dict_merge({'table' : table}, rule_def) + if vrf: + rule_def = dict_merge({'vrf' : vrf}, rule_def) if proto: rule_def = dict_merge({'protocol' : proto}, rule_def) dict = dict_merge({dict_id : {rule : rule_def}}, dict) @@ -90,6 +93,7 @@ def get_config(config=None): dst = leaf_node_changed(conf, base_rule + [rule, 'destination', 'address']) dst_port = leaf_node_changed(conf, base_rule + [rule, 'destination', 'port']) table = leaf_node_changed(conf, base_rule + [rule, 'set', 'table']) + vrf = leaf_node_changed(conf, base_rule + [rule, 'set', 'vrf']) proto = leaf_node_changed(conf, base_rule + [rule, 'protocol']) # keep track of changes in configuration # otherwise we might remove an existing node although nothing else has changed @@ -179,6 +183,15 @@ def get_config(config=None): if len(table) > 0: rule_def = dict_merge({'table' : table}, rule_def) + # vrf + if vrf is None: + if 'set' in rule_config and 'vrf' in rule_config['set']: + rule_def = dict_merge({'vrf': [rule_config['set']['vrf']]}, rule_def) + else: + changed = True + if len(vrf) > 0: + rule_def = dict_merge({'vrf' : vrf}, rule_def) + # protocol if proto is None: if 'protocol' in rule_config: @@ -218,8 +231,15 @@ def verify(pbr): ): raise ConfigError('Source or destination address or fwmark or inbound-interface or protocol is required!') - if 'set' not in pbr_route['rule'][rule] or 'table' not in pbr_route['rule'][rule]['set']: - raise ConfigError('Table set is required!') + if 'set' not in pbr_route['rule'][rule]: + raise ConfigError('Either set table or set vrf is required!') + + set_tgts = pbr_route['rule'][rule]['set'] + if 'table' not in set_tgts and 'vrf' not in set_tgts: + raise ConfigError('Either set table or set vrf is required!') + + if 'table' in set_tgts and 'vrf' in set_tgts: + raise ConfigError('set table and set vrf cannot both be set!') if 'inbound_interface' in pbr_route['rule'][rule]: interface = pbr_route['rule'][rule]['inbound_interface'] @@ -250,11 +270,14 @@ def apply(pbr): fwmark = rule_config.get('fwmark', ['']) inbound_interface = rule_config.get('inbound_interface', ['']) protocol = rule_config.get('protocol', ['']) - table = rule_config.get('table', ['']) + # VRF 'default' is actually table 'main' for RIB rules + vrf = [ 'main' if x == 'default' else x for x in rule_config.get('vrf', ['']) ] + # See generate section below for table/vrf overlap explanation + table_or_vrf = rule_config.get('table', vrf) - for src, dst, src_port, dst_port, fwmk, iif, proto, table in product( + for src, dst, src_port, dst_port, fwmk, iif, proto, table_or_vrf in product( source, destination, source_port, destination_port, - fwmark, inbound_interface, protocol, table): + fwmark, inbound_interface, protocol, table_or_vrf): f_src = '' if src == '' else f' from {src} ' f_src_port = '' if src_port == '' else f' sport {src_port} ' f_dst = '' if dst == '' else f' to {dst} ' @@ -262,7 +285,7 @@ def apply(pbr): f_fwmk = '' if fwmk == '' else f' fwmark {fwmk} ' f_iif = '' if iif == '' else f' iif {iif} ' f_proto = '' if proto == '' else f' ipproto {proto} ' - f_table = '' if table == '' else f' lookup {table} ' + f_table = '' if table_or_vrf == '' else f' lookup {table_or_vrf} ' call(f'ip{v6} rule del prio {rule} {f_src}{f_dst}{f_proto}{f_src_port}{f_dst_port}{f_fwmk}{f_iif}{f_table}') @@ -276,7 +299,13 @@ def apply(pbr): if 'rule' in pbr_route: for rule, rule_config in pbr_route['rule'].items(): - table = rule_config['set'].get('table', '') + # VRFs get configred as route table alias names for iproute2 and only + # one 'set' can get past validation. Either can be fed to lookup. + vrf = rule_config['set'].get('vrf', '') + if vrf == 'default': + table_or_vrf = 'main' + else: + table_or_vrf = rule_config['set'].get('table', vrf) source = rule_config.get('source', {}).get('address', ['all']) source_port = rule_config.get('source', {}).get('port', '') destination = rule_config.get('destination', {}).get('address', ['all']) @@ -295,7 +324,7 @@ def apply(pbr): f_iif = f' iif {inbound_interface} ' if inbound_interface else '' f_proto = f' ipproto {protocol} ' if protocol else '' - call(f'ip{v6} rule add prio {rule}{f_src}{f_dst}{f_proto}{f_src_port}{f_dst_port}{f_fwmk}{f_iif} lookup {table}') + call(f'ip{v6} rule add prio {rule}{f_src}{f_dst}{f_proto}{f_src_port}{f_dst_port}{f_fwmk}{f_iif} lookup {table_or_vrf}') return None diff --git a/src/conf_mode/protocols_static.py b/src/conf_mode/protocols_static.py index a2373218a..430cc69d4 100755 --- a/src/conf_mode/protocols_static.py +++ b/src/conf_mode/protocols_static.py @@ -88,7 +88,7 @@ def verify(static): if {'blackhole', 'reject'} <= set(prefix_options): raise ConfigError(f'Can not use both blackhole and reject for '\ - 'prefix "{prefix}"!') + f'prefix "{prefix}"!') return None diff --git a/src/conf_mode/service_monitoring_node-exporter.py b/src/conf_mode/service_monitoring_node-exporter.py new file mode 100755 index 000000000..db34bb5d0 --- /dev/null +++ b/src/conf_mode/service_monitoring_node-exporter.py @@ -0,0 +1,101 @@ +#!/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 + +from sys import exit + +from vyos.config import Config +from vyos.configdict import is_node_changed +from vyos.configverify import verify_vrf +from vyos.template import render +from vyos.utils.process import call +from vyos import ConfigError +from vyos import airbag + + +airbag.enable() + +service_file = '/etc/systemd/system/node_exporter.service' +systemd_service = 'node_exporter.service' + + +def get_config(config=None): + if config: + conf = config + else: + conf = Config() + base = ['service', 'monitoring', 'node-exporter'] + if not conf.exists(base): + return None + + config_data = conf.get_config_dict( + base, key_mangling=('-', '_'), get_first_key=True + ) + config_data = conf.merge_defaults(config_data, recursive=True) + + tmp = is_node_changed(conf, base + ['vrf']) + if tmp: + config_data.update({'restart_required': {}}) + + return config_data + + +def verify(config_data): + # bail out early - looks like removal from running config + if not config_data: + return None + + verify_vrf(config_data) + return None + + +def generate(config_data): + if not config_data: + # Delete systemd files + if os.path.isfile(service_file): + os.unlink(service_file) + return None + + # Render node_exporter service_file + render(service_file, 'node_exporter/node_exporter.service.j2', config_data) + return None + + +def apply(config_data): + # Reload systemd manager configuration + call('systemctl daemon-reload') + if not config_data: + call(f'systemctl stop {systemd_service}') + return + + # we need to restart the service if e.g. the VRF name changed + systemd_action = 'reload-or-restart' + if 'restart_required' in config_data: + systemd_action = 'restart' + + call(f'systemctl {systemd_action} {systemd_service}') + + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) diff --git a/src/conf_mode/vpn_ipsec.py b/src/conf_mode/vpn_ipsec.py index ca0c3657f..e22b7550c 100755 --- a/src/conf_mode/vpn_ipsec.py +++ b/src/conf_mode/vpn_ipsec.py @@ -214,6 +214,19 @@ def verify(ipsec): else: verify_interface_exists(ipsec, interface) + # need to use a pseudo-random function (PRF) with an authenticated encryption algorithm. + # If a hash algorithm is defined then it will be mapped to an equivalent PRF + if 'ike_group' in ipsec: + for _, ike_config in ipsec['ike_group'].items(): + for proposal, proposal_config in ike_config.get('proposal', {}).items(): + if 'encryption' in proposal_config and 'prf' not in proposal_config: + # list of hash algorithms that cannot be mapped to an equivalent PRF + algs = ['aes128gmac', 'aes192gmac', 'aes256gmac', 'sha256_96'] + if 'hash' in proposal_config and proposal_config['hash'] in algs: + raise ConfigError( + f"A PRF algorithm is mandatory in IKE proposal {proposal}" + ) + if 'l2tp' in ipsec: if 'esp_group' in ipsec['l2tp']: if 'esp_group' not in ipsec or ipsec['l2tp']['esp_group'] not in ipsec['esp_group']: |
