#!/usr/bin/env python3 # # Copyright (C) 2021-2022 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 . import unittest from glob import glob from time import sleep from base_vyostest_shim import VyOSUnitTestSHIM from vyos.configsession import ConfigSessionError from vyos.utils.process import cmd from vyos.utils.process import run sysfs_config = { 'all_ping': {'sysfs': '/proc/sys/net/ipv4/icmp_echo_ignore_all', 'default': '0', 'test_value': 'disable'}, 'broadcast_ping': {'sysfs': '/proc/sys/net/ipv4/icmp_echo_ignore_broadcasts', 'default': '1', 'test_value': 'enable'}, 'ip_src_route': {'sysfs': '/proc/sys/net/ipv4/conf/*/accept_source_route', 'default': '0', 'test_value': 'enable'}, 'ipv6_receive_redirects': {'sysfs': '/proc/sys/net/ipv6/conf/*/accept_redirects', 'default': '0', 'test_value': 'enable'}, 'ipv6_src_route': {'sysfs': '/proc/sys/net/ipv6/conf/*/accept_source_route', 'default': '-1', 'test_value': 'enable'}, 'log_martians': {'sysfs': '/proc/sys/net/ipv4/conf/all/log_martians', 'default': '1', 'test_value': 'disable'}, 'receive_redirects': {'sysfs': '/proc/sys/net/ipv4/conf/*/accept_redirects', 'default': '0', 'test_value': 'enable'}, 'send_redirects': {'sysfs': '/proc/sys/net/ipv4/conf/*/send_redirects', 'default': '1', 'test_value': 'disable'}, 'syn_cookies': {'sysfs': '/proc/sys/net/ipv4/tcp_syncookies', 'default': '1', 'test_value': 'disable'}, 'twa_hazards_protection': {'sysfs': '/proc/sys/net/ipv4/tcp_rfc1337', 'default': '0', 'test_value': 'enable'} } class TestFirewall(VyOSUnitTestSHIM.TestCase): @classmethod def setUpClass(cls): super(TestFirewall, cls).setUpClass() # ensure we can also run this test on a live system - so lets clean # out the current configuration :) cls.cli_delete(cls, ['firewall']) @classmethod def tearDownClass(cls): super(TestFirewall, cls).tearDownClass() def tearDown(self): self.cli_delete(['firewall']) self.cli_commit() # Verify chains/sets are cleaned up from nftables nftables_search = [ ['set M_smoketest_mac'], ['set N_smoketest_network'], ['set P_smoketest_port'], ['set D_smoketest_domain'], ['set RECENT_smoketest_4'], ['chain NAME_smoketest'] ] self.verify_nftables(nftables_search, 'ip vyos_filter', inverse=True) def verify_nftables(self, nftables_search, table, inverse=False, args=''): nftables_output = cmd(f'sudo nft {args} list table {table}') for search in nftables_search: matched = False for line in nftables_output.split("\n"): if all(item in line for item in search): matched = True break self.assertTrue(not matched if inverse else matched, msg=search) def verify_nftables_chain(self, nftables_search, table, chain, inverse=False, args=''): nftables_output = cmd(f'sudo nft {args} list chain {table} {chain}') for search in nftables_search: matched = False for line in nftables_output.split("\n"): if all(item in line for item in search): matched = True break self.assertTrue(not matched if inverse else matched, msg=search) def wait_for_domain_resolver(self, table, set_name, element, max_wait=10): # Resolver no longer blocks commit, need to wait for daemon to populate set count = 0 while count < max_wait: code = run(f'sudo nft get element {table} {set_name} {{ {element} }}') if code == 0: return True count += 1 sleep(1) return False def test_geoip(self): self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'source', 'geoip', 'country-code', 'se']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'source', 'geoip', 'country-code', 'gb']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '2', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '2', 'source', 'geoip', 'country-code', 'de']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '2', 'source', 'geoip', 'country-code', 'fr']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '2', 'source', 'geoip', 'inverse-match']) self.cli_commit() nftables_search = [ ['ip saddr @GEOIP_CC_name_smoketest_1', 'drop'], ['ip saddr != @GEOIP_CC_name_smoketest_2', 'accept'] ] # -t prevents 1000+ GeoIP elements being returned self.verify_nftables(nftables_search, 'ip vyos_filter', args='-t') def test_groups(self): hostmap_path = ['system', 'static-host-mapping', 'host-name'] example_org = ['192.0.2.8', '192.0.2.10', '192.0.2.11'] self.cli_set(hostmap_path + ['example.com', 'inet', '192.0.2.5']) for ips in example_org: self.cli_set(hostmap_path + ['example.org', 'inet', ips]) self.cli_commit() self.cli_set(['firewall', 'group', 'mac-group', 'smoketest_mac', 'mac-address', '00:01:02:03:04:05']) self.cli_set(['firewall', 'group', 'network-group', 'smoketest_network', 'network', '172.16.99.0/24']) self.cli_set(['firewall', 'group', 'port-group', 'smoketest_port', 'port', '53']) 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', 'ipv4', 'forward', 'filter', 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'source', 'group', 'network-group', 'smoketest_network']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'destination', 'address', '172.16.10.10']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'destination', 'group', 'port-group', 'smoketest_port']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'protocol', 'tcp_udp']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'source', 'group', 'mac-group', 'smoketest_mac']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'source', 'group', 'domain-group', 'smoketest_domain']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'outbound-interface', 'interface-group', '!smoketest_interface']) self.cli_commit() self.wait_for_domain_resolver('ip vyos_filter', 'D_smoketest_domain', '192.0.2.5') nftables_search = [ ['ip saddr @N_smoketest_network', 'ip daddr 172.16.10.10', 'th dport @P_smoketest_port', 'accept'], ['elements = { 172.16.99.0/24 }'], ['elements = { 53, 123 }'], ['ether saddr @M_smoketest_mac', 'accept'], ['elements = { 00:01:02:03:04:05 }'], ['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', 'accept'], ['oifname != @I_smoketest_interface', 'accept'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') self.cli_delete(['system', 'static-host-mapping']) self.cli_commit() def test_nested_groups(self): self.cli_set(['firewall', 'group', 'network-group', 'smoketest_network', 'network', '172.16.99.0/24']) self.cli_set(['firewall', 'group', 'network-group', 'smoketest_network1', 'network', '172.16.101.0/24']) self.cli_set(['firewall', 'group', 'network-group', 'smoketest_network1', 'include', 'smoketest_network']) self.cli_set(['firewall', 'group', 'port-group', 'smoketest_port', 'port', '53']) self.cli_set(['firewall', 'group', 'port-group', 'smoketest_port1', 'port', '123']) self.cli_set(['firewall', 'group', 'port-group', 'smoketest_port1', 'include', 'smoketest_port']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'source', 'group', 'network-group', 'smoketest_network1']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'destination', 'group', 'port-group', 'smoketest_port1']) self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'protocol', 'tcp_udp']) self.cli_commit() # Test circular includes self.cli_set(['firewall', 'group', 'network-group', 'smoketest_network', 'include', 'smoketest_network1']) with self.assertRaises(ConfigSessionError): self.cli_commit() self.cli_delete(['firewall', 'group', 'network-group', 'smoketest_network', 'include', 'smoketest_network1']) nftables_search = [ ['ip saddr @N_smoketest_network1', 'th dport @P_smoketest_port1', 'accept'], ['elements = { 172.16.99.0/24, 172.16.101.0/24 }'], ['elements = { 53, 123 }'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') def test_ipv4_basic_rules(self): name = 'smoketest' interface = 'eth0' interface_inv = '!eth0' interface_wc = 'l2tp*' mss_range = '501-1460' conn_mark = '555' self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'source', 'address', '172.16.20.10']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'destination', 'address', '172.16.10.10']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'log', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'log-options', 'level', 'debug']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'ttl', 'eq', '15']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'action', 'reject']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'protocol', 'tcp']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'destination', 'port', '8888']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'log', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'log-options', 'level', 'err']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'tcp', 'flags', 'syn']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'tcp', 'flags', 'not', 'ack']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'ttl', 'gt', '102']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'protocol', 'tcp']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'destination', 'port', '22']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'limit', 'rate', '5/minute']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '3', 'log', 'disable']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'action', 'drop']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'protocol', 'tcp']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'destination', 'port', '22']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'recent', 'count', '10']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'recent', 'time', 'minute']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '4', 'packet-type', 'host']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'protocol', 'tcp']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'tcp', 'flags', 'syn']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'tcp', 'mss', mss_range]) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'packet-type', 'broadcast']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '5', 'inbound-interface', 'interface-name', interface_wc]) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '6', 'action', 'return']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '6', 'protocol', 'gre']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '6', 'connection-mark', conn_mark]) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'default-action', 'accept']) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '5', 'action', 'drop']) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '5', 'protocol', 'gre']) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '5', 'outbound-interface', 'interface-name', interface_inv]) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '6', 'action', 'return']) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '6', 'protocol', 'icmp']) self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '6', 'connection-mark', conn_mark]) self.cli_commit() mark_hex = "{0:#010x}".format(int(conn_mark)) nftables_search = [ ['chain VYOS_FORWARD_filter'], ['type filter hook forward priority filter; policy drop;'], ['tcp dport 22', 'limit rate 5/minute', 'accept'], ['tcp dport 22', 'add @RECENT_FWD_filter_4 { ip saddr limit rate over 10/minute burst 10 packets }', 'meta pkttype host', 'drop'], ['chain VYOS_INPUT_filter'], ['type filter hook input priority filter; policy accept;'], ['tcp flags & syn == syn', f'tcp option maxseg size {mss_range}', f'iifname "{interface_wc}"', 'meta pkttype broadcast', 'accept'], ['meta l4proto gre', f'ct mark {mark_hex}', 'return'], ['chain VYOS_OUTPUT_filter'], ['type filter hook output priority filter; policy accept;'], ['meta l4proto gre', f'oifname != "{interface}"', 'drop'], ['meta l4proto icmp', f'ct mark {mark_hex}', 'return'], ['chain NAME_smoketest'], ['saddr 172.16.20.10', 'daddr 172.16.10.10', 'log prefix "[smoketest-1-A]" log level debug', 'ip ttl 15', 'accept'], ['tcp flags syn / syn,ack', 'tcp dport 8888', 'log prefix "[smoketest-2-R]" log level err', 'ip ttl > 102', 'reject'], ['log prefix "[smoketest-default-D]"','smoketest default-action', 'drop'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') def test_ipv4_advanced(self): name = 'smoketest-adv' name2 = 'smoketest-adv2' interface = 'eth0' self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'packet-length', '64']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'packet-length', '512']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'packet-length', '1024']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'dscp', '17']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'dscp', '52']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'log', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'log-options', 'group', '66']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'log-options', 'snapshot-length', '6666']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '6', 'log-options', 'queue-threshold','32000']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '7', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '7', 'packet-length', '1-30000']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '7', 'packet-length-exclude', '60000-65535']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '7', 'dscp', '3-11']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '7', 'dscp-exclude', '21-25']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'source', 'address', '198.51.100.1']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'action', 'jump']) self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'jump-target', name]) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '2', 'protocol', 'tcp']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '2', 'action', 'queue']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '2', 'queue', '3']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '3', 'protocol', 'udp']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '3', 'action', 'queue']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '3', 'queue-options', 'fanout']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '3', 'queue-options', 'bypass']) self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '3', 'queue', '0-15']) self.cli_commit() nftables_search = [ ['chain VYOS_FORWARD_filter'], ['type filter hook forward priority filter; policy drop;'], ['ip saddr 198.51.100.1', f'jump NAME_{name}'], ['chain VYOS_INPUT_filter'], ['type filter hook input priority filter; policy accept;'], [f'meta l4proto tcp','queue to 3'], [f'meta l4proto udp','queue flags bypass,fanout to 0-15'], [f'chain NAME_{name}'], ['ip length { 64, 512, 1024 }', 'ip dscp { 0x11, 0x34 }', f'log prefix "[{name}-6-A]" log group 66 snaplen 6666 queue-threshold 32000', 'accept'], ['ip length 1-30000', 'ip length != 60000-65535', 'ip dscp 0x03-0x0b', 'ip dscp != 0x15-0x19', 'accept'], [f'log prefix "[{name}-default-D]"', 'drop'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') def test_ipv4_mask(self): name = 'smoketest-mask' interface = 'eth0' self.cli_set(['firewall', 'group', 'address-group', 'mask_group', 'address', '1.1.1.1']) self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'destination', 'address', '0.0.1.2']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'destination', 'address-mask', '0.0.255.255']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'source', 'address', '!0.0.3.4']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'source', 'address-mask', '0.0.255.255']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'source', 'group', 'address-group', 'mask_group']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'source', 'address-mask', '0.0.255.255']) self.cli_commit() nftables_search = [ [f'daddr & 0.0.255.255 == 0.0.1.2'], [f'saddr & 0.0.255.255 != 0.0.3.4'], [f'saddr & 0.0.255.255 == @A_mask_group'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') def test_ipv6_basic_rules(self): name = 'v6-smoketest' interface = 'eth0' self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv6', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'source', 'address', '2002::1']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'destination', 'address', '2002::1:1']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'log', 'enable']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'log-options', 'level', 'crit']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'default-action', 'accept']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '2', 'action', 'reject']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '2', 'protocol', 'tcp_udp']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '2', 'destination', 'port', '8888']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '2', 'inbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'default-action', 'drop']) self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '3', 'action', 'return']) self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '3', 'protocol', 'gre']) self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '3', 'outbound-interface', 'interface-name', interface]) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'protocol', 'udp']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'source', 'address', '2002::1:2']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'inbound-interface', 'interface-name', interface]) self.cli_commit() nftables_search = [ ['chain VYOS_IPV6_FORWARD_filter'], ['type filter hook forward priority filter; policy accept;'], ['meta l4proto { tcp, udp }', 'th dport 8888', f'iifname "{interface}"', 'reject'], ['chain VYOS_IPV6_INPUT_filter'], ['type filter hook input priority filter; policy accept;'], ['meta l4proto udp', 'ip6 saddr 2002::1:2', f'iifname "{interface}"', 'accept'], ['chain VYOS_IPV6_OUTPUT_filter'], ['type filter hook output priority filter; policy drop;'], ['meta l4proto gre', f'oifname "{interface}"', 'return'], [f'chain NAME6_{name}'], ['saddr 2002::1', 'daddr 2002::1:1', 'log prefix "[v6-smoketest-1-A]" log level crit', 'accept'], [f'"{name} default-action drop"', f'log prefix "[{name}-default-D]"', 'drop'] ] self.verify_nftables(nftables_search, 'ip6 vyos_filter') def test_ipv6_advanced(self): name = 'v6-smoketest-adv' name2 = 'v6-smoketest-adv2' interface = 'eth0' self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv6', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'packet-length', '65']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'packet-length', '513']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'packet-length', '1025']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'dscp', '18']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'dscp', '53']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '4', 'action', 'accept']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '4', 'packet-length', '1-1999']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '4', 'packet-length-exclude', '60000-65535']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '4', 'dscp', '4-14']) self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '4', 'dscp-exclude', '31-35']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'default-action', 'accept']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '1', 'source', 'address', '2001:db8::/64']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '1', 'action', 'jump']) self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '1', 'jump-target', name]) self.cli_commit() nftables_search = [ ['chain VYOS_IPV6_FORWARD_filter'], ['type filter hook forward priority filter; policy accept;'], ['ip6 length 1-1999', 'ip6 length != 60000-65535', 'ip6 dscp 0x04-0x0e', 'ip6 dscp != 0x1f-0x23', 'accept'], ['chain VYOS_IPV6_INPUT_filter'], ['type filter hook input priority filter; policy accept;'], ['ip6 saddr 2001:db8::/64', f'jump NAME6_{name}'], [f'chain NAME6_{name}'], ['ip6 length { 65, 513, 1025 }', 'ip6 dscp { af21, 0x35 }', 'accept'], [f'log prefix "[{name}-default-D]"', 'drop'] ] self.verify_nftables(nftables_search, 'ip6 vyos_filter') def test_ipv6_mask(self): name = 'v6-smoketest-mask' interface = 'eth0' self.cli_set(['firewall', 'group', 'ipv6-address-group', 'mask_group', 'address', '::beef']) self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv6', 'name', name, 'enable-default-log']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'action', 'drop']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'destination', 'address', '::1111:2222:3333:4444']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'destination', 'address-mask', '::ffff:ffff:ffff:ffff']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '2', 'action', 'accept']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '2', 'source', 'address', '!::aaaa:bbbb:cccc:dddd']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '2', 'source', 'address-mask', '::ffff:ffff:ffff:ffff']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'action', 'drop']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'source', 'group', 'address-group', 'mask_group']) self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '3', 'source', 'address-mask', '::ffff:ffff:ffff:ffff']) self.cli_commit() nftables_search = [ ['daddr & ::ffff:ffff:ffff:ffff == ::1111:2222:3333:4444'], ['saddr & ::ffff:ffff:ffff:ffff != ::aaaa:bbbb:cccc:dddd'], ['saddr & ::ffff:ffff:ffff:ffff == @A6_mask_group'] ] self.verify_nftables(nftables_search, 'ip6 vyos_filter') def test_ipv4_state_and_status_rules(self): name = 'smoketest-state' interface = 'eth0' self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'drop']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'state', 'established', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'state', 'related', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'action', 'reject']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'state', 'invalid', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'state', 'new', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'connection-status', 'nat', 'destination']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'action', 'accept']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'state', 'new', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'state', 'established', 'enable']) self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'connection-status', 'nat', 'source']) self.cli_commit() nftables_search = [ ['ct state { established, related }', 'accept'], ['ct state invalid', 'reject'], ['ct state new', 'ct status dnat', 'accept'], ['ct state { established, new }', 'ct status snat', 'accept'], ['drop', f'comment "{name} default-action drop"'] ] self.verify_nftables(nftables_search, 'ip vyos_filter') # Check conntrack self.verify_nftables_chain([['accept']], 'raw', 'FW_CONNTRACK') self.verify_nftables_chain([['return']], 'ip6 raw', 'FW_CONNTRACK') def test_source_validation(self): # Strict self.cli_set(['firewall', 'global-options', 'source-validation', 'strict']) self.cli_set(['firewall', 'global-options', 'ipv6-source-validation', 'strict']) self.cli_commit() nftables_strict_search = [ ['fib saddr . iif oif 0', 'drop'] ] self.verify_nftables_chain(nftables_strict_search, 'ip raw', 'vyos_global_rpfilter') self.verify_nftables_chain(nftables_strict_search, 'ip6 raw', 'vyos_global_rpfilter') # Loose self.cli_set(['firewall', 'global-options', 'source-validation', 'loose']) self.cli_set(['firewall', 'global-options', 'ipv6-source-validation', 'loose']) self.cli_commit() nftables_loose_search = [ ['fib saddr oif 0', 'drop'] ] self.verify_nftables_chain(nftables_loose_search, 'ip raw', 'vyos_global_rpfilter') self.verify_nftables_chain(nftables_loose_search, 'ip6 raw', 'vyos_global_rpfilter') def test_sysfs(self): for name, conf in sysfs_config.items(): paths = glob(conf['sysfs']) for path in paths: with open(path, 'r') as f: self.assertEqual(f.read().strip(), conf['default'], msg=path) self.cli_set(['firewall', 'global-options', name.replace("_", "-"), conf['test_value']]) self.cli_commit() for name, conf in sysfs_config.items(): paths = glob(conf['sysfs']) for path in paths: with open(path, 'r') as f: self.assertNotEqual(f.read().strip(), conf['default'], msg=path) if __name__ == '__main__': unittest.main(verbosity=2)