diff options
| -rw-r--r-- | data/templates/protocols/systemd_vyos_failover_service.j2 | 11 | ||||
| -rw-r--r-- | data/templates/router-advert/radvd.conf.j2 | 7 | ||||
| -rw-r--r-- | data/templates/squid/sg_acl.conf.j2 | 1 | ||||
| -rw-r--r-- | data/templates/squid/squidGuard.conf.j2 | 122 | ||||
| -rw-r--r-- | interface-definitions/include/firewall/icmpv6-type-name.xml.i | 16 | ||||
| -rw-r--r-- | interface-definitions/protocols-failover.xml.in | 114 | ||||
| -rw-r--r-- | interface-definitions/service-router-advert.xml.in | 13 | ||||
| -rwxr-xr-x | src/conf_mode/protocols_failover.py | 121 | ||||
| -rwxr-xr-x | src/conf_mode/service_webproxy.py | 100 | ||||
| -rwxr-xr-x | src/helpers/vyos-failover.py | 184 | ||||
| -rwxr-xr-x | src/op_mode/webproxy_update_blacklist.sh | 27 |
11 files changed, 669 insertions, 47 deletions
diff --git a/data/templates/protocols/systemd_vyos_failover_service.j2 b/data/templates/protocols/systemd_vyos_failover_service.j2 new file mode 100644 index 000000000..e6501e0f5 --- /dev/null +++ b/data/templates/protocols/systemd_vyos_failover_service.j2 @@ -0,0 +1,11 @@ +[Unit] +Description=Failover route service +After=vyos-router.service + +[Service] +Type=simple +Restart=always +ExecStart=/usr/bin/python3 /usr/libexec/vyos/vyos-failover.py --config /run/vyos-failover.conf + +[Install] +WantedBy=multi-user.target diff --git a/data/templates/router-advert/radvd.conf.j2 b/data/templates/router-advert/radvd.conf.j2 index a464795ad..f4b384958 100644 --- a/data/templates/router-advert/radvd.conf.j2 +++ b/data/templates/router-advert/radvd.conf.j2 @@ -43,6 +43,13 @@ interface {{ iface }} { }; {% endfor %} {% endif %} +{% if iface_config.source_address is vyos_defined %} + AdvRASrcAddress { +{% for source_address in iface_config.source_address %} + {{ source_address }} +{% endfor %} + }; +{% endif %} {% if iface_config.prefix is vyos_defined %} {% for prefix, prefix_options in iface_config.prefix.items() %} prefix {{ prefix }} { diff --git a/data/templates/squid/sg_acl.conf.j2 b/data/templates/squid/sg_acl.conf.j2 index ce72b173a..78297a2b8 100644 --- a/data/templates/squid/sg_acl.conf.j2 +++ b/data/templates/squid/sg_acl.conf.j2 @@ -1,6 +1,5 @@ ### generated by service_webproxy.py ### dbhome {{ squidguard_db_dir }} - dest {{ category }}-{{ rule }} { {% if list_type == 'domains' %} domainlist {{ category }}/domains diff --git a/data/templates/squid/squidGuard.conf.j2 b/data/templates/squid/squidGuard.conf.j2 index 1bc4c984f..a93f878df 100644 --- a/data/templates/squid/squidGuard.conf.j2 +++ b/data/templates/squid/squidGuard.conf.j2 @@ -1,10 +1,16 @@ ### generated by service_webproxy.py ### -{% macro sg_rule(category, log, db_dir) %} +{% macro sg_rule(category, rule, log, db_dir) %} +{% set domains = db_dir + '/' + category + '/domains' %} +{% set urls = db_dir + '/' + category + '/urls' %} {% set expressions = db_dir + '/' + category + '/expressions' %} -dest {{ category }}-default { +dest {{ category }}-{{ rule }}{ +{% if domains | is_file %} domainlist {{ category }}/domains +{% endif %} +{% if urls | is_file %} urllist {{ category }}/urls +{% endif %} {% if expressions | is_file %} expressionlist {{ category }}/expressions {% endif %} @@ -17,8 +23,9 @@ dest {{ category }}-default { {% if url_filtering is vyos_defined and url_filtering.disable is not vyos_defined %} {% if url_filtering.squidguard is vyos_defined %} {% set sg_config = url_filtering.squidguard %} -{% set acl = namespace(value='local-ok-default') %} +{% set acl = namespace(value='') %} {% set acl.value = acl.value + ' !in-addr' if sg_config.allow_ipaddr_url is not defined else acl.value %} +{% set ruleacls = {} %} dbhome {{ squidguard_db_dir }} logdir /var/log/squid @@ -38,24 +45,28 @@ dest local-ok-default { domainlist local-ok-default/domains } {% endif %} + {% if sg_config.local_ok_url is vyos_defined %} {% set acl.value = acl.value + ' local-ok-url-default' %} dest local-ok-url-default { urllist local-ok-url-default/urls } {% endif %} + {% if sg_config.local_block is vyos_defined %} {% set acl.value = acl.value + ' !local-block-default' %} dest local-block-default { domainlist local-block-default/domains } {% endif %} + {% if sg_config.local_block_url is vyos_defined %} {% set acl.value = acl.value + ' !local-block-url-default' %} dest local-block-url-default { urllist local-block-url-default/urls } {% endif %} + {% if sg_config.local_block_keyword is vyos_defined %} {% set acl.value = acl.value + ' !local-block-keyword-default' %} dest local-block-keyword-default { @@ -65,16 +76,100 @@ dest local-block-keyword-default { {% if sg_config.block_category is vyos_defined %} {% for category in sg_config.block_category %} -{{ sg_rule(category, sg_config.log, squidguard_db_dir) }} +{{ sg_rule(category, 'default', sg_config.log, squidguard_db_dir) }} {% set acl.value = acl.value + ' !' + category + '-default' %} {% endfor %} {% endif %} {% if sg_config.allow_category is vyos_defined %} {% for category in sg_config.allow_category %} -{{ sg_rule(category, False, squidguard_db_dir) }} +{{ sg_rule(category, 'default', False, squidguard_db_dir) }} {% set acl.value = acl.value + ' ' + category + '-default' %} {% endfor %} {% endif %} + + +{% if sg_config.rule is vyos_defined %} +{% for rule, rule_config in sg_config.rule.items() %} +{% if rule_config.local_ok is vyos_defined %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' local-ok-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'local-ok-' + rule}) %} +{% endif %} +dest local-ok-{{ rule }} { + domainlist local-ok-{{ rule }}/domains +} +{% endif %} + +{% if rule_config.local_ok_url is vyos_defined %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' local-ok-url-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'local-ok-url-' + rule}) %} +{% endif %} +dest local-ok-url-{{ rule }} { + urllist local-ok-url-{{ rule }}/urls +} +{% endif %} + +{% if rule_config.local_block is vyos_defined %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' !local-block-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'!local-block-' + rule}) %} +{% endif %} +dest local-block-{{ rule }} { + domainlist local-block-{{ rule }}/domains +} +{% endif %} + +{% if rule_config.local_block_url is vyos_defined %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' !local-block-url-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'!ocal-block-url-' + rule}) %} +{% endif %} +dest local-block-url-{{ rule }} { + urllist local-block-url-{{ rule }}/urls +} +{% endif %} + +{% if rule_config.local_block_keyword is vyos_defined %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' !local-block-keyword-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'!local-block-keyword-' + rule}) %} +{% endif %} +dest local-block-keyword-{{ rule }} { + expressionlist local-block-keyword-{{ rule }}/expressions +} +{% endif %} + +{% if rule_config.block_category is vyos_defined %} +{% for b_category in rule_config.block_category %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' !' + b_category + '-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:'!' + b_category + '-' + rule}) %} +{% endif %} +{{ sg_rule(b_category, rule, sg_config.log, squidguard_db_dir) }} +{% endfor %} +{% endif %} + +{% if rule_config.allow_category is vyos_defined %} +{% for a_category in rule_config.allow_category %} +{% if rule in ruleacls %} +{% set _dummy = ruleacls.update({rule: ruleacls[rule] + ' ' + a_category + '-' + rule}) %} +{% else %} +{% set _dummy = ruleacls.update({rule:a_category + '-' + rule}) %} +{% endif %} +{{ sg_rule(a_category, rule, sg_config.log, squidguard_db_dir) }} +{% endfor %} +{% endif %} +{% endfor %} +{% endif %} + + {% if sg_config.source_group is vyos_defined %} {% for sgroup, sg_config in sg_config.source_group.items() %} {% if sg_config.address is vyos_defined %} @@ -83,28 +178,15 @@ src {{ sgroup }} { ip {{ address }} {% endfor %} } - {% endif %} {% endfor %} {% endif %} -{% if sg_config.rule is vyos_defined %} -{% for rule, rule_config in sg_config.rule.items() %} -{% for b_category in rule_config.block_category %} -dest {{ b_category }} { - domainlist {{ b_category }}/domains - urllist {{ b_category }}/urls -} -{% endfor %} -{% endfor %} -{% endif %} acl { {% if sg_config.rule is vyos_defined %} {% for rule, rule_config in sg_config.rule.items() %} {{ rule_config.source_group }} { -{% for b_category in rule_config.block_category %} - pass local-ok-1 !in-addr !{{ b_category }} all -{% endfor %} + pass {{ ruleacls[rule] }} {{ 'none' if rule_config.default_action is vyos_defined('block') else 'any' }} } {% endfor %} {% endif %} @@ -113,7 +195,7 @@ acl { {% if sg_config.enable_safe_search is vyos_defined %} rewrite safesearch {% endif %} - pass {{ acl.value }} {{ 'none' if sg_config.default_action is vyos_defined('block') else 'allow' }} + pass {{ acl.value }} {{ 'none' if sg_config.default_action is vyos_defined('block') else 'any' }} redirect 302:http://{{ sg_config.redirect_url }} {% if sg_config.log is vyos_defined %} log blacklist.log diff --git a/interface-definitions/include/firewall/icmpv6-type-name.xml.i b/interface-definitions/include/firewall/icmpv6-type-name.xml.i index a2e68abfb..e17a20e17 100644 --- a/interface-definitions/include/firewall/icmpv6-type-name.xml.i +++ b/interface-definitions/include/firewall/icmpv6-type-name.xml.i @@ -3,7 +3,7 @@ <properties> <help>ICMPv6 type-name</help> <completionHelp> - <list>destination-unreachable packet-too-big time-exceeded echo-request echo-reply mld-listener-query mld-listener-report mld-listener-reduction nd-router-solicit nd-router-advert nd-neighbor-solicit nd-neighbor-advert nd-redirect parameter-problem router-renumbering</list> + <list>destination-unreachable packet-too-big time-exceeded echo-request echo-reply mld-listener-query mld-listener-report mld-listener-reduction nd-router-solicit nd-router-advert nd-neighbor-solicit nd-neighbor-advert nd-redirect parameter-problem router-renumbering ind-neighbor-solicit ind-neighbor-advert mld2-listener-report</list> </completionHelp> <valueHelp> <format>destination-unreachable</format> @@ -65,8 +65,20 @@ <format>router-renumbering</format> <description>ICMPv6 type 138: router-renumbering</description> </valueHelp> + <valueHelp> + <format>ind-neighbor-solicit</format> + <description>ICMPv6 type 141: ind-neighbor-solicit</description> + </valueHelp> + <valueHelp> + <format>ind-neighbor-advert</format> + <description>ICMPv6 type 142: ind-neighbor-advert</description> + </valueHelp> + <valueHelp> + <format>mld2-listener-report</format> + <description>ICMPv6 type 143: mld2-listener-report</description> + </valueHelp> <constraint> - <regex>(destination-unreachable|packet-too-big|time-exceeded|echo-request|echo-reply|mld-listener-query|mld-listener-report|mld-listener-reduction|nd-router-solicit|nd-router-advert|nd-neighbor-solicit|nd-neighbor-advert|nd-redirect|parameter-problem|router-renumbering)</regex> + <regex>(destination-unreachable|packet-too-big|time-exceeded|echo-request|echo-reply|mld-listener-query|mld-listener-report|mld-listener-reduction|nd-router-solicit|nd-router-advert|nd-neighbor-solicit|nd-neighbor-advert|nd-redirect|parameter-problem|router-renumbering|ind-neighbor-solicit|ind-neighbor-advert|mld2-listener-report)</regex> </constraint> </properties> </leafNode> diff --git a/interface-definitions/protocols-failover.xml.in b/interface-definitions/protocols-failover.xml.in new file mode 100644 index 000000000..900c76eab --- /dev/null +++ b/interface-definitions/protocols-failover.xml.in @@ -0,0 +1,114 @@ +<?xml version="1.0"?> +<interfaceDefinition> + <node name="protocols"> + <children> + <node name="failover" owner="${vyos_conf_scripts_dir}/protocols_failover.py"> + <properties> + <help>Failover Routing</help> + <priority>490</priority> + </properties> + <children> + <tagNode name="route"> + <properties> + <help>Failover IPv4 route</help> + <valueHelp> + <format>ipv4net</format> + <description>IPv4 failover route</description> + </valueHelp> + <constraint> + <validator name="ipv4-prefix"/> + </constraint> + </properties> + <children> + <tagNode name="next-hop"> + <properties> + <help>Next-hop IPv4 router address</help> + <valueHelp> + <format>ipv4</format> + <description>Next-hop router address</description> + </valueHelp> + <constraint> + <validator name="ipv4-address"/> + </constraint> + </properties> + <children> + <node name="check"> + <properties> + <help>Check target options</help> + </properties> + <children> + #include <include/port-number.xml.i> + <leafNode name="target"> + <properties> + <help>Check target address</help> + <valueHelp> + <format>ipv4</format> + <description>Address to check</description> + </valueHelp> + <constraint> + <validator name="ipv4-address"/> + </constraint> + </properties> + </leafNode> + <leafNode name="timeout"> + <properties> + <help>Timeout between checks</help> + <valueHelp> + <format>u32:1-300</format> + <description>Timeout in seconds between checks</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-255"/> + </constraint> + </properties> + <defaultValue>10</defaultValue> + </leafNode> + <leafNode name="type"> + <properties> + <help>Check type</help> + <completionHelp> + <list>arp icmp tcp</list> + </completionHelp> + <valueHelp> + <format>arp</format> + <description>Check target by ARP</description> + </valueHelp> + <valueHelp> + <format>icmp</format> + <description>Check target by ICMP</description> + </valueHelp> + <valueHelp> + <format>tcp</format> + <description>Check target by TCP</description> + </valueHelp> + <constraint> + <regex>(arp|icmp|tcp)</regex> + </constraint> + </properties> + <defaultValue>icmp</defaultValue> + </leafNode> + </children> + </node> + #include <include/static/static-route-interface.xml.i> + <leafNode name="metric"> + <properties> + <help>Route metric for this gateway</help> + <valueHelp> + <format>u32:1-255</format> + <description>Route metric</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-255"/> + </constraint> + </properties> + <defaultValue>1</defaultValue> + </leafNode> + </children> + </tagNode> + </children> + </tagNode> + </children> + </node> + </children> + </node> +</interfaceDefinition> diff --git a/interface-definitions/service-router-advert.xml.in b/interface-definitions/service-router-advert.xml.in index 87ec512d6..8b7364a8c 100644 --- a/interface-definitions/service-router-advert.xml.in +++ b/interface-definitions/service-router-advert.xml.in @@ -305,6 +305,19 @@ </leafNode> </children> </tagNode> + <leafNode name="source-address"> + <properties> + <help>Use IPv6 address as source address. Useful with VRRP.</help> + <valueHelp> + <format>ipv6</format> + <description>IPv6 address to be advertized (must be configured on interface)</description> + </valueHelp> + <constraint> + <validator name="ipv6-address"/> + </constraint> + <multi/> + </properties> + </leafNode> <leafNode name="reachable-time"> <properties> <help>Time, in milliseconds, that a node assumes a neighbor is reachable after having received a reachability confirmation</help> diff --git a/src/conf_mode/protocols_failover.py b/src/conf_mode/protocols_failover.py new file mode 100755 index 000000000..048ba7a89 --- /dev/null +++ b/src/conf_mode/protocols_failover.py @@ -0,0 +1,121 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2022 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 + +from pathlib import Path + +from vyos.config import Config +from vyos.configdict import dict_merge +from vyos.template import render +from vyos.util import call +from vyos.xml import defaults +from vyos import ConfigError +from vyos import airbag + +airbag.enable() + + +service_name = 'vyos-failover' +service_conf = Path(f'/run/{service_name}.conf') +systemd_service = '/etc/systemd/system/vyos-failover.service' +rt_proto_failover = '/etc/iproute2/rt_protos.d/failover.conf' + + +def get_config(config=None): + if config: + conf = config + else: + conf = Config() + + base = ['protocols', 'failover'] + failover = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True) + + # Set default values only if we set config + if failover.get('route'): + for route, route_config in failover.get('route').items(): + for next_hop, next_hop_config in route_config.get('next_hop').items(): + default_values = defaults(base + ['route']) + failover['route'][route]['next_hop'][next_hop] = dict_merge( + default_values['next_hop'], failover['route'][route]['next_hop'][next_hop]) + + return failover + +def verify(failover): + # bail out early - looks like removal from running config + if not failover: + return None + + if 'route' not in failover: + raise ConfigError(f'Failover "route" is mandatory!') + + for route, route_config in failover['route'].items(): + if not route_config.get('next_hop'): + raise ConfigError(f'Next-hop for "{route}" is mandatory!') + + for next_hop, next_hop_config in route_config.get('next_hop').items(): + if 'interface' not in next_hop_config: + raise ConfigError(f'Interface for route "{route}" next-hop "{next_hop}" is mandatory!') + + if not next_hop_config.get('check'): + raise ConfigError(f'Check target for next-hop "{next_hop}" is mandatory!') + + if 'target' not in next_hop_config['check']: + raise ConfigError(f'Check target for next-hop "{next_hop}" is mandatory!') + + check_type = next_hop_config['check']['type'] + if check_type == 'tcp' and 'port' not in next_hop_config['check']: + raise ConfigError(f'Check port for next-hop "{next_hop}" and type TCP is mandatory!') + + return None + +def generate(failover): + if not failover: + service_conf.unlink(missing_ok=True) + return None + + # Add own rt_proto 'failover' + # Helps to detect all own routes 'proto failover' + with open(rt_proto_failover, 'w') as f: + f.write('111 failover\n') + + # Write configuration file + conf_json = json.dumps(failover, indent=4) + service_conf.write_text(conf_json) + render(systemd_service, 'protocols/systemd_vyos_failover_service.j2', failover) + + return None + +def apply(failover): + if not failover: + call(f'systemctl stop {service_name}.service') + call('ip route flush protocol failover') + else: + call('systemctl daemon-reload') + call(f'systemctl restart {service_name}.service') + call(f'ip route flush protocol failover') + + return None + +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/service_webproxy.py b/src/conf_mode/service_webproxy.py index 32af31bde..41a1deaa3 100755 --- a/src/conf_mode/service_webproxy.py +++ b/src/conf_mode/service_webproxy.py @@ -28,8 +28,10 @@ from vyos.util import dict_search from vyos.util import write_file from vyos.validate import is_addr_assigned from vyos.xml import defaults +from vyos.base import Warning from vyos import ConfigError from vyos import airbag + airbag.enable() squid_config_file = '/etc/squid/squid.conf' @@ -37,24 +39,57 @@ squidguard_config_file = '/etc/squidguard/squidGuard.conf' squidguard_db_dir = '/opt/vyatta/etc/config/url-filtering/squidguard/db' user_group = 'proxy' -def generate_sg_localdb(category, list_type, role, proxy): + +def check_blacklist_categorydb(config_section): + if 'block_category' in config_section: + for category in config_section['block_category']: + check_categorydb(category) + if 'allow_category' in config_section: + for category in config_section['allow_category']: + check_categorydb(category) + + +def check_categorydb(category: str): + """ + Check if category's db exist + :param category: + :type str: + """ + path_to_cat: str = f'{squidguard_db_dir}/{category}' + if not os.path.exists(f'{path_to_cat}/domains.db') \ + and not os.path.exists(f'{path_to_cat}/urls.db') \ + and not os.path.exists(f'{path_to_cat}/expressions.db'): + Warning(f'DB of category {category} does not exist.\n ' + f'Use [update webproxy blacklists] ' + f'or delete undefined category!') + + +def generate_sg_rule_localdb(category, list_type, role, proxy): + if not category or not list_type or not role: + return None + cat_ = category.replace('-', '_') - if isinstance(dict_search(f'url_filtering.squidguard.{cat_}', proxy), - list): + if role == 'default': + path_to_cat = f'{cat_}' + else: + path_to_cat = f'rule.{role}.{cat_}' + if isinstance( + dict_search(f'url_filtering.squidguard.{path_to_cat}', proxy), + list): # local block databases must be generated "on-the-fly" tmp = { - 'squidguard_db_dir' : squidguard_db_dir, - 'category' : f'{category}-default', - 'list_type' : list_type, - 'rule' : role + 'squidguard_db_dir': squidguard_db_dir, + 'category': f'{category}-{role}', + 'list_type': list_type, + 'rule': role } sg_tmp_file = '/tmp/sg.conf' - db_file = f'{category}-default/{list_type}' - domains = '\n'.join(dict_search(f'url_filtering.squidguard.{cat_}', proxy)) - + db_file = f'{category}-{role}/{list_type}' + domains = '\n'.join( + dict_search(f'url_filtering.squidguard.{path_to_cat}', proxy)) # local file - write_file(f'{squidguard_db_dir}/{category}-default/local', '', + write_file(f'{squidguard_db_dir}/{category}-{role}/local', '', user=user_group, group=user_group) # database input file write_file(f'{squidguard_db_dir}/{db_file}', domains, @@ -64,17 +99,18 @@ def generate_sg_localdb(category, list_type, role, proxy): render(sg_tmp_file, 'squid/sg_acl.conf.j2', tmp, user=user_group, group=user_group) - call(f'su - {user_group} -c "squidGuard -d -c {sg_tmp_file} -C {db_file}"') + call( + f'su - {user_group} -c "squidGuard -d -c {sg_tmp_file} -C {db_file}"') if os.path.exists(sg_tmp_file): os.unlink(sg_tmp_file) - else: # if category is not part of our configuration, clean out the # squidguard lists - tmp = f'{squidguard_db_dir}/{category}-default' + tmp = f'{squidguard_db_dir}/{category}-{role}' if os.path.exists(tmp): - rmtree(f'{squidguard_db_dir}/{category}-default') + rmtree(f'{squidguard_db_dir}/{category}-{role}') + def get_config(config=None): if config: @@ -85,7 +121,8 @@ def get_config(config=None): if not conf.exists(base): return None - proxy = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True) + proxy = conf.get_config_dict(base, key_mangling=('-', '_'), + get_first_key=True) # We have gathered the dict representation of the CLI, but there are default # options which we need to update into the dictionary retrived. default_values = defaults(base) @@ -110,10 +147,11 @@ def get_config(config=None): default_values = defaults(base + ['cache-peer']) for peer in proxy['cache_peer']: proxy['cache_peer'][peer] = dict_merge(default_values, - proxy['cache_peer'][peer]) + proxy['cache_peer'][peer]) return proxy + def verify(proxy): if not proxy: return None @@ -170,17 +208,30 @@ def generate(proxy): render(squidguard_config_file, 'squid/squidGuard.conf.j2', proxy) cat_dict = { - 'local-block' : 'domains', - 'local-block-keyword' : 'expressions', - 'local-block-url' : 'urls', - 'local-ok' : 'domains', - 'local-ok-url' : 'urls' + 'local-block': 'domains', + 'local-block-keyword': 'expressions', + 'local-block-url': 'urls', + 'local-ok': 'domains', + 'local-ok-url': 'urls' } - for category, list_type in cat_dict.items(): - generate_sg_localdb(category, list_type, 'default', proxy) + if dict_search(f'url_filtering.squidguard', proxy) is not None: + squidgard_config_section = proxy['url_filtering']['squidguard'] + + for category, list_type in cat_dict.items(): + generate_sg_rule_localdb(category, list_type, 'default', proxy) + check_blacklist_categorydb(squidgard_config_section) + + if 'rule' in squidgard_config_section: + for rule in squidgard_config_section['rule']: + rule_config_section = squidgard_config_section['rule'][ + rule] + for category, list_type in cat_dict.items(): + generate_sg_rule_localdb(category, list_type, rule, proxy) + check_blacklist_categorydb(rule_config_section) return None + def apply(proxy): if not proxy: # proxy is removed in the commit @@ -198,6 +249,7 @@ def apply(proxy): call('systemctl restart squid.service') return None + if __name__ == '__main__': try: c = get_config() diff --git a/src/helpers/vyos-failover.py b/src/helpers/vyos-failover.py new file mode 100755 index 000000000..1ac193423 --- /dev/null +++ b/src/helpers/vyos-failover.py @@ -0,0 +1,184 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2022 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 argparse +import json +import subprocess +import socket +import time + +from vyos.util import rc_cmd +from pathlib import Path +from systemd import journal + + +my_name = Path(__file__).stem + + +def get_best_route_options(route, debug=False): + """ + Return current best route ('gateway, interface, metric) + + % get_best_route_options('203.0.113.1') + ('192.168.0.1', 'eth1', 1) + + % get_best_route_options('203.0.113.254') + (None, None, None) + """ + rc, data = rc_cmd(f'ip --detail --json route show protocol failover {route}') + if rc == 0: + data = json.loads(data) + if len(data) == 0: + print(f'\nRoute {route} for protocol failover was not found') + return None, None, None + # Fake metric 999 by default + # Search route with the lowest metric + best_metric = 999 + for entry in data: + if debug: print('\n', entry) + metric = entry.get('metric') + gateway = entry.get('gateway') + iface = entry.get('dev') + if metric < best_metric: + best_metric = metric + best_gateway = gateway + best_interface = iface + if debug: + print(f'### Best_route exists: {route}, best_gateway: {best_gateway}, ' + f'best_metric: {best_metric}, best_iface: {best_interface}') + return best_gateway, best_interface, best_metric + +def is_port_open(ip, port): + """ + Check connection to remote host and port + Return True if host alive + + % is_port_open('example.com', 8080) + True + """ + s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) + s.settimeout(2) + try: + s.connect((ip, int(port))) + s.shutdown(socket.SHUT_RDWR) + return True + except: + return False + finally: + s.close() + +def is_target_alive(target=None, iface='', proto='icmp', port=None, debug=False): + """ + Host availability check by ICMP, ARP, TCP + Return True if target checks is successful + + % is_target_alive('192.0.2.1', 'eth1', proto='arp') + True + """ + if iface != '': + iface = f'-I {iface}' + if proto == 'icmp': + command = f'/usr/bin/ping -q {target} {iface} -n -c 2 -W 1' + rc, response = rc_cmd(command) + if debug: print(f' [ CHECK-TARGET ]: [{command}] -- return-code [RC: {rc}]') + if rc == 0: + return True + elif proto == 'arp': + command = f'/usr/bin/arping -b -c 2 -f -w 1 -i 1 {iface} {target}' + rc, response = rc_cmd(command) + if debug: print(f' [ CHECK-TARGET ]: [{command}] -- return-code [RC: {rc}]') + if rc == 0: + return True + elif proto == 'tcp' and port is not None: + return True if is_port_open(target, port) else False + else: + return False + + +if __name__ == '__main__': + # Parse command arguments and get config + parser = argparse.ArgumentParser() + parser.add_argument('-c', + '--config', + action='store', + help='Path to protocols failover configuration', + required=True, + type=Path) + + args = parser.parse_args() + try: + config_path = Path(args.config) + config = json.loads(config_path.read_text()) + except Exception as err: + print( + f'Configuration file "{config_path}" does not exist or malformed: {err}' + ) + exit(1) + + # Useful debug info to console, use debug = True + # sudo systemctl stop vyos-failover.service + # sudo /usr/libexec/vyos/vyos-failover.py --config /run/vyos-failover.conf + debug = False + + while(True): + + for route, route_config in config.get('route').items(): + + exists_route = exists_gateway, exists_iface, exists_metric = get_best_route_options(route, debug=debug) + + for next_hop, nexthop_config in route_config.get('next_hop').items(): + conf_iface = nexthop_config.get('interface') + conf_metric = int(nexthop_config.get('metric')) + port = nexthop_config.get('check').get('port') + port_opt = f'port {port}' if port else '' + proto = nexthop_config.get('check').get('type') + target = nexthop_config.get('check').get('target') + timeout = nexthop_config.get('check').get('timeout') + + # Best route not fonund in the current routing table + if exists_route == (None, None, None): + if debug: print(f" [NEW_ROUTE_DETECTED] route: [{route}]") + # Add route if check-target alive + if is_target_alive(target, conf_iface, proto, port, debug=debug): + if debug: print(f' [ ADD ] -- ip route add {route} via {next_hop} dev {conf_iface} ' + f'metric {conf_metric} proto failover\n###') + rc, command = rc_cmd(f'ip route add {route} via {next_hop} dev {conf_iface} ' + f'metric {conf_metric} proto failover') + # If something is wrong and gateway not added + # Example: Error: Next-hop has invalid gateway. + if rc !=0: + if debug: print(f'{command} -- return-code [RC: {rc}] {next_hop} dev {conf_iface}') + else: + journal.send(f'ip route add {route} via {next_hop} dev {conf_iface} ' + f'metric {conf_metric} proto failover', SYSLOG_IDENTIFIER=my_name) + else: + if debug: print(f' [ TARGET_FAIL ] target checks fails for [{target}], do nothing') + journal.send(f'Check fail for route {route} target {target} proto {proto} ' + f'{port_opt}', SYSLOG_IDENTIFIER=my_name) + + # Route was added, check if the target is alive + # We should delete route if check fails only if route exists in the routing table + if not is_target_alive(target, conf_iface, proto, port, debug=debug) and \ + exists_route != (None, None, None): + if debug: + print(f'Nexh_hop {next_hop} fail, target not response') + print(f' [ DEL ] -- ip route del {route} via {next_hop} dev {conf_iface} ' + f'metric {conf_metric} proto failover [DELETE]') + rc_cmd(f'ip route del {route} via {next_hop} dev {conf_iface} metric {conf_metric} proto failover') + journal.send(f'ip route del {route} via {next_hop} dev {conf_iface} ' + f'metric {conf_metric} proto failover', SYSLOG_IDENTIFIER=my_name) + + time.sleep(int(timeout)) diff --git a/src/op_mode/webproxy_update_blacklist.sh b/src/op_mode/webproxy_update_blacklist.sh index d5f301b75..4fb9a54c6 100755 --- a/src/op_mode/webproxy_update_blacklist.sh +++ b/src/op_mode/webproxy_update_blacklist.sh @@ -18,6 +18,23 @@ blacklist_url='ftp://ftp.univ-tlse1.fr/pub/reseau/cache/squidguard_contrib/black data_dir="/opt/vyatta/etc/config/url-filtering" archive="${data_dir}/squidguard/archive" db_dir="${data_dir}/squidguard/db" +conf_file="/etc/squidguard/squidGuard.conf" +tmp_conf_file="/tmp/sg_update_db.conf" + +#$1-category +#$2-type +#$3-list +create_sg_db () +{ + FILE=$db_dir/$1/$2 + if test -f "$FILE"; then + rm -f ${tmp_conf_file} + printf "dbhome $db_dir\ndest $1 {\n $3 $1/$2\n}\nacl {\n default {\n pass any\n }\n}" >> ${tmp_conf_file} + /usr/bin/squidGuard -b -c ${tmp_conf_file} -C $FILE + rm -f ${tmp_conf_file} + fi + +} while [ $# -gt 0 ] do @@ -88,6 +105,16 @@ if [[ -n $update ]] && [[ $update -eq "yes" ]]; then # fix permissions chown -R proxy:proxy ${db_dir} + + #create db + category_list=(`find $db_dir -type d -exec basename {} \; `) + for category in ${category_list[@]} + do + create_sg_db $category "domains" "domainlist" + create_sg_db $category "urls" "urllist" + create_sg_db $category "expressions" "expressionlist" + done + chown -R proxy:proxy ${db_dir} chmod 755 ${db_dir} logger --priority WARNING "webproxy blacklist entries updated (${count_before}/${count_after})" |