diff options
| -rw-r--r-- | data/templates/firewall/nftables-defines.j2 | 13 | ||||
| -rw-r--r-- | interface-definitions/firewall.xml.in | 29 | ||||
| -rw-r--r-- | interface-definitions/include/firewall/common-rule.xml.i | 26 | ||||
| -rw-r--r-- | interface-definitions/include/firewall/match-interface.xml.i | 18 | ||||
| -rw-r--r-- | interface-definitions/include/version/firewall-version.xml.i | 2 | ||||
| -rw-r--r-- | python/vyos/firewall.py | 16 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_firewall.py | 15 | ||||
| -rwxr-xr-x | src/conf_mode/firewall.py | 3 | ||||
| -rwxr-xr-x | src/conf_mode/policy-route.py | 109 | ||||
| -rwxr-xr-x | src/migration-scripts/firewall/8-to-9 | 91 |
10 files changed, 194 insertions, 128 deletions
diff --git a/data/templates/firewall/nftables-defines.j2 b/data/templates/firewall/nftables-defines.j2 index 5336f7ee6..b9ebf4d5c 100644 --- a/data/templates/firewall/nftables-defines.j2 +++ b/data/templates/firewall/nftables-defines.j2 @@ -77,5 +77,18 @@ } {% endfor %} {% endif %} +{% if group.interface_group is vyos_defined %} +{% for group_name, group_conf in group.interface_group.items() %} +{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %} + set I_{{ group_name }} { + type ifname + flags interval + auto-merge +{% if group_conf.interface is vyos_defined or includes %} + elements = { {{ group_conf.interface | nft_nested_group(includes, group.interface_group, 'interface') | join(",") }} } +{% endif %} + } +{% endfor %} +{% endif %} {% endif %} {% endmacro %} diff --git a/interface-definitions/firewall.xml.in b/interface-definitions/firewall.xml.in index 673461036..12584276c 100644 --- a/interface-definitions/firewall.xml.in +++ b/interface-definitions/firewall.xml.in @@ -134,6 +134,35 @@ #include <include/generic-description.xml.i> </children> </tagNode> + <tagNode name="interface-group"> + <properties> + <help>Firewall interface-group</help> + <constraint> + <regex>[a-zA-Z0-9][\w\-\.]*</regex> + </constraint> + </properties> + <children> + <leafNode name="interface"> + <properties> + <help>Interface-group member</help> + <completionHelp> + <script>${vyos_completion_dir}/list_interfaces.py</script> + </completionHelp> + <multi/> + </properties> + </leafNode> + <leafNode name="include"> + <properties> + <help>Include another interface-group</help> + <completionHelp> + <path>firewall group interface-group</path> + </completionHelp> + <multi/> + </properties> + </leafNode> + #include <include/generic-description.xml.i> + </children> + </tagNode> <tagNode name="ipv6-address-group"> <properties> <help>Firewall ipv6-address-group</help> diff --git a/interface-definitions/include/firewall/common-rule.xml.i b/interface-definitions/include/firewall/common-rule.xml.i index a4f66f5cb..297e6fc1a 100644 --- a/interface-definitions/include/firewall/common-rule.xml.i +++ b/interface-definitions/include/firewall/common-rule.xml.i @@ -26,14 +26,22 @@ </leafNode> </children> </node> -<leafNode name="inbound-interface"> +<node name="inbound-interface"> <properties> <help>Match inbound-interface</help> - <completionHelp> - <script>${vyos_completion_dir}/list_interfaces.py</script> - </completionHelp> </properties> -</leafNode> + <children> + #include <include/firewall/match-interface.xml.i> + </children> +</node> +<node name="outbound-interface"> + <properties> + <help>Match outbound-interface</help> + </properties> + <children> + #include <include/firewall/match-interface.xml.i> + </children> +</node> <node name="ipsec"> <properties> <help>Inbound IPsec packets</help> @@ -130,14 +138,6 @@ </leafNode> </children> </node> -<leafNode name="outbound-interface"> - <properties> - <help>Match outbound-interface</help> - <completionHelp> - <script>${vyos_completion_dir}/list_interfaces.py</script> - </completionHelp> - </properties> -</leafNode> <leafNode name="protocol"> <properties> <help>Protocol to match (protocol name, number, or "all")</help> diff --git a/interface-definitions/include/firewall/match-interface.xml.i b/interface-definitions/include/firewall/match-interface.xml.i new file mode 100644 index 000000000..675a87574 --- /dev/null +++ b/interface-definitions/include/firewall/match-interface.xml.i @@ -0,0 +1,18 @@ +<!-- include start from firewall/match-interface.xml.i --> +<leafNode name="interface-name"> + <properties> + <help>Match interface</help> + <completionHelp> + <script>${vyos_completion_dir}/list_interfaces.py</script> + </completionHelp> + </properties> +</leafNode> +<leafNode name="interface-group"> + <properties> + <help>Match interface-group</help> + <completionHelp> + <path>firewall group interface-group</path> + </completionHelp> + </properties> +</leafNode> +<!-- include end -->
\ No newline at end of file diff --git a/interface-definitions/include/version/firewall-version.xml.i b/interface-definitions/include/version/firewall-version.xml.i index 065925319..bc04f8d51 100644 --- a/interface-definitions/include/version/firewall-version.xml.i +++ b/interface-definitions/include/version/firewall-version.xml.i @@ -1,3 +1,3 @@ <!-- include start from include/version/firewall-version.xml.i --> -<syntaxVersion component='firewall' version='8'></syntaxVersion> +<syntaxVersion component='firewall' version='9'></syntaxVersion> <!-- include end --> diff --git a/python/vyos/firewall.py b/python/vyos/firewall.py index 4075e55b0..0e92da8ab 100644 --- a/python/vyos/firewall.py +++ b/python/vyos/firewall.py @@ -249,12 +249,20 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name): output.append(f'ip6 hoplimit {operator} {value}') if 'inbound_interface' in rule_conf: - iiface = rule_conf['inbound_interface'] - output.append(f'iifname {iiface}') + if 'interface_name' in rule_conf['inbound_interface']: + iiface = rule_conf['inbound_interface']['interface_name'] + output.append(f'iifname {{{iiface}}}') + else: + iiface = rule_conf['inbound_interface']['interface_group'] + output.append(f'iifname @I_{iiface}') if 'outbound_interface' in rule_conf: - oiface = rule_conf['outbound_interface'] - output.append(f'oifname {oiface}') + if 'interface_name' in rule_conf['outbound_interface']: + oiface = rule_conf['outbound_interface']['interface_name'] + output.append(f'oifname {{{oiface}}}') + else: + oiface = rule_conf['outbound_interface']['interface_group'] + output.append(f'oifname @I_{oiface}') if 'ttl' in rule_conf: operators = {'eq': '==', 'gt': '>', 'lt': '<'} diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py index 821925bcd..6af574bdb 100755 --- a/smoketest/scripts/cli/test_firewall.py +++ b/smoketest/scripts/cli/test_firewall.py @@ -111,6 +111,8 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'group', 'port-group', 'smoketest_port', 'port', '123']) self.cli_set(['firewall', 'group', 'domain-group', 'smoketest_domain', 'address', 'example.com']) self.cli_set(['firewall', 'group', 'domain-group', 'smoketest_domain', 'address', 'example.org']) + self.cli_set(['firewall', 'group', 'interface-group', 'smoketest_interface', 'interface', 'eth0']) + self.cli_set(['firewall', 'group', 'interface-group', 'smoketest_interface', 'interface', 'vtun0']) self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'source', 'group', 'network-group', 'smoketest_network']) @@ -121,6 +123,8 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'source', 'group', 'mac-group', 'smoketest_mac']) self.cli_set(['firewall', 'name', 'smoketest', 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'name', 'smoketest', 'rule', '3', 'source', 'group', 'domain-group', 'smoketest_domain']) + self.cli_set(['firewall', 'name', 'smoketest', 'rule', '4', 'action', 'accept']) + self.cli_set(['firewall', 'name', 'smoketest', 'rule', '4', 'outbound-interface', 'interface-group', 'smoketest_interface']) self.cli_set(['firewall', 'interface', 'eth0', 'in', 'name', 'smoketest']) @@ -135,7 +139,8 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): ['set D_smoketest_domain'], ['elements = { 192.0.2.5, 192.0.2.8,'], ['192.0.2.10, 192.0.2.11 }'], - ['ip saddr @D_smoketest_domain', 'return'] + ['ip saddr @D_smoketest_domain', 'return'], + ['oifname @I_smoketest_interface', 'return'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') @@ -209,10 +214,10 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'name', name, 'rule', '5', 'protocol', 'tcp']) self.cli_set(['firewall', 'name', name, 'rule', '5', 'tcp', 'flags', 'syn']) self.cli_set(['firewall', 'name', name, 'rule', '5', 'tcp', 'mss', mss_range]) - self.cli_set(['firewall', 'name', name, 'rule', '5', 'inbound-interface', interface]) + self.cli_set(['firewall', 'name', name, 'rule', '5', 'inbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'name', name, 'rule', '6', 'action', 'return']) self.cli_set(['firewall', 'name', name, 'rule', '6', 'protocol', 'gre']) - self.cli_set(['firewall', 'name', name, 'rule', '6', 'outbound-interface', interface]) + self.cli_set(['firewall', 'name', name, 'rule', '6', 'outbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'interface', interface, 'in', 'name', name]) @@ -290,11 +295,11 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase): self.cli_set(['firewall', 'ipv6-name', name, 'rule', '2', 'action', 'reject']) self.cli_set(['firewall', 'ipv6-name', name, 'rule', '2', 'protocol', 'tcp_udp']) self.cli_set(['firewall', 'ipv6-name', name, 'rule', '2', 'destination', 'port', '8888']) - self.cli_set(['firewall', 'ipv6-name', name, 'rule', '2', 'inbound-interface', interface]) + self.cli_set(['firewall', 'ipv6-name', name, 'rule', '2', 'inbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'ipv6-name', name, 'rule', '3', 'action', 'return']) self.cli_set(['firewall', 'ipv6-name', name, 'rule', '3', 'protocol', 'gre']) - self.cli_set(['firewall', 'ipv6-name', name, 'rule', '3', 'outbound-interface', interface]) + self.cli_set(['firewall', 'ipv6-name', name, 'rule', '3', 'outbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'interface', interface, 'in', 'ipv6-name', name]) diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py index cbd9cbe90..dcdbf8fab 100755 --- a/src/conf_mode/firewall.py +++ b/src/conf_mode/firewall.py @@ -67,7 +67,8 @@ valid_groups = [ 'address_group', 'domain_group', 'network_group', - 'port_group' + 'port_group', + 'interface_group' ] nested_group_types = [ diff --git a/src/conf_mode/policy-route.py b/src/conf_mode/policy-route.py index 00539b9c7..40a32efb3 100755 --- a/src/conf_mode/policy-route.py +++ b/src/conf_mode/policy-route.py @@ -15,7 +15,6 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. import os -import re from json import loads from sys import exit @@ -25,7 +24,6 @@ from vyos.config import Config from vyos.template import render from vyos.util import cmd from vyos.util import dict_search_args -from vyos.util import dict_search_recursive from vyos.util import run from vyos import ConfigError from vyos import airbag @@ -34,48 +32,14 @@ airbag.enable() mark_offset = 0x7FFFFFFF nftables_conf = '/run/nftables_policy.conf' -ROUTE_PREFIX = 'VYOS_PBR_' -ROUTE6_PREFIX = 'VYOS_PBR6_' - -preserve_chains = [ - 'VYOS_PBR_PREROUTING', - 'VYOS_PBR_POSTROUTING', - 'VYOS_PBR6_PREROUTING', - 'VYOS_PBR6_POSTROUTING' -] - valid_groups = [ 'address_group', + 'domain_group', 'network_group', - 'port_group' + 'port_group', + 'interface_group' ] -group_set_prefix = { - 'A_': 'address_group', - 'A6_': 'ipv6_address_group', -# 'D_': 'domain_group', - 'M_': 'mac_group', - 'N_': 'network_group', - 'N6_': 'ipv6_network_group', - 'P_': 'port_group' -} - -def get_policy_interfaces(conf): - out = {} - interfaces = conf.get_config_dict(['interfaces'], key_mangling=('-', '_'), get_first_key=True, - no_tag_node_value_mangle=True) - def find_interfaces(iftype_conf, output={}, prefix=''): - for ifname, if_conf in iftype_conf.items(): - if 'policy' in if_conf: - output[prefix + ifname] = if_conf['policy'] - for vif in ['vif', 'vif_s', 'vif_c']: - if vif in if_conf: - output.update(find_interfaces(if_conf[vif], output, f'{prefix}{ifname}.')) - return output - for iftype, iftype_conf in interfaces.items(): - out.update(find_interfaces(iftype_conf)) - return out - def get_config(config=None): if config: conf = config @@ -88,7 +52,6 @@ def get_config(config=None): policy['firewall_group'] = conf.get_config_dict(['firewall', 'group'], key_mangling=('-', '_'), get_first_key=True, no_tag_node_value_mangle=True) - policy['interfaces'] = get_policy_interfaces(conf) return policy @@ -132,8 +95,8 @@ def verify_rule(policy, name, rule_conf, ipv6, rule_id): side_conf = rule_conf[side] if 'group' in side_conf: - if {'address_group', 'network_group'} <= set(side_conf['group']): - raise ConfigError('Only one address-group or network-group can be specified') + if len({'address_group', 'domain_group', 'network_group'} & set(side_conf['group'])) > 1: + raise ConfigError('Only one address-group, domain-group or network-group can be specified') for group in valid_groups: if group in side_conf['group']: @@ -168,73 +131,11 @@ def verify(policy): for rule_id, rule_conf in pol_conf['rule'].items(): verify_rule(policy, name, rule_conf, ipv6, rule_id) - for ifname, if_policy in policy['interfaces'].items(): - name = dict_search_args(if_policy, 'route') - ipv6_name = dict_search_args(if_policy, 'route6') - - if name and not dict_search_args(policy, 'route', name): - raise ConfigError(f'Policy route "{name}" is still referenced on interface {ifname}') - - if ipv6_name and not dict_search_args(policy, 'route6', ipv6_name): - raise ConfigError(f'Policy route6 "{ipv6_name}" is still referenced on interface {ifname}') - return None -def cleanup_commands(policy): - commands = [] - commands_chains = [] - commands_sets = [] - for table in ['ip mangle', 'ip6 mangle']: - route_node = 'route' if table == 'ip mangle' else 'route6' - chain_prefix = ROUTE_PREFIX if table == 'ip mangle' else ROUTE6_PREFIX - - json_str = cmd(f'nft -t -j list table {table}') - obj = loads(json_str) - if 'nftables' not in obj: - continue - for item in obj['nftables']: - if 'chain' in item: - chain = item['chain']['name'] - if chain in preserve_chains or not chain.startswith("VYOS_PBR"): - continue - - if dict_search_args(policy, route_node, chain.replace(chain_prefix, "", 1)) != None: - commands.append(f'flush chain {table} {chain}') - else: - commands_chains.append(f'delete chain {table} {chain}') - - if 'rule' in item: - rule = item['rule'] - chain = rule['chain'] - handle = rule['handle'] - - if chain not in preserve_chains: - continue - - target, _ = next(dict_search_recursive(rule['expr'], 'target')) - - if target.startswith(chain_prefix): - if dict_search_args(policy, route_node, target.replace(chain_prefix, "", 1)) == None: - commands.append(f'delete rule {table} {chain} handle {handle}') - - if 'set' in item: - set_name = item['set']['name'] - - for prefix, group_type in group_set_prefix.items(): - if set_name.startswith(prefix): - group_name = set_name.replace(prefix, "", 1) - if dict_search_args(policy, 'firewall_group', group_type, group_name) != None: - commands_sets.append(f'flush set {table} {set_name}') - else: - commands_sets.append(f'delete set {table} {set_name}') - - return commands + commands_chains + commands_sets - def generate(policy): if not os.path.exists(nftables_conf): policy['first_install'] = True - else: - policy['cleanup_commands'] = cleanup_commands(policy) render(nftables_conf, 'firewall/nftables-policy.j2', policy) return None diff --git a/src/migration-scripts/firewall/8-to-9 b/src/migration-scripts/firewall/8-to-9 new file mode 100755 index 000000000..f7c1bb90d --- /dev/null +++ b/src/migration-scripts/firewall/8-to-9 @@ -0,0 +1,91 @@ +#!/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/>. + +# T4780: Add firewall interface group +# cli changes from: +# set firewall [name | ipv6-name] <name> rule <number> [inbound-interface | outbound-interface] <interface_name> +# To +# set firewall [name | ipv6-name] <name> rule <number> [inbound-interface | outbound-interface] [interface-name | interface-group] <interface_name | interface_group> + +import re + +from sys import argv +from sys import exit + +from vyos.configtree import ConfigTree +from vyos.ifconfig import Section + +if (len(argv) < 1): + print("Must specify file name!") + exit(1) + +file_name = argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['firewall'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + exit(0) + +if config.exists(base + ['name']): + for name in config.list_nodes(base + ['name']): + if not config.exists(base + ['name', name, 'rule']): + continue + + for rule in config.list_nodes(base + ['name', name, 'rule']): + rule_iiface = base + ['name', name, 'rule', rule, 'inbound-interface'] + rule_oiface = base + ['name', name, 'rule', rule, 'outbound-interface'] + + if config.exists(rule_iiface): + tmp = config.return_value(rule_iiface) + config.delete(rule_iiface) + config.set(rule_iiface + ['interface-name'], value=tmp) + + if config.exists(rule_oiface): + tmp = config.return_value(rule_oiface) + config.delete(rule_oiface) + config.set(rule_oiface + ['interface-name'], value=tmp) + + +if config.exists(base + ['ipv6-name']): + for name in config.list_nodes(base + ['ipv6-name']): + if not config.exists(base + ['ipv6-name', name, 'rule']): + continue + + for rule in config.list_nodes(base + ['ipv6-name', name, 'rule']): + rule_iiface = base + ['ipv6-name', name, 'rule', rule, 'inbound-interface'] + rule_oiface = base + ['ipv6-name', name, 'rule', rule, 'outbound-interface'] + + if config.exists(rule_iiface): + tmp = config.return_value(rule_iiface) + config.delete(rule_iiface) + config.set(rule_iiface + ['interface-name'], value=tmp) + + if config.exists(rule_oiface): + tmp = config.return_value(rule_oiface) + config.delete(rule_oiface) + config.set(rule_oiface + ['interface-name'], value=tmp) + +try: + with open(file_name, 'w') as f: + f.write(config.to_string()) +except OSError as e: + print("Failed to save the modified config: {}".format(e)) + exit(1)
\ No newline at end of file |