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test_firewall.py
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test_firewall.py
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#!/usr/bin/env python3
#
# Copyright (C) 2021-2023 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 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 run
from vyos.utils.file import read_file
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'},
'directed_broadcast': {'sysfs': '/proc/sys/net/ipv4/conf/all/bc_forwarding', 'default': '1', 'test_value': 'disable'},
'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'}
}
def get_sysctl(parameter):
tmp = parameter.replace(r'.', r'/')
return read_file(f'/proc/sys/{tmp}')
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 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', '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, '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'])
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'])
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', 'default-log'])
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'])
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', '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', 'drop'])
self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'default-log'])
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', '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_set(['firewall', 'ipv4', 'output', 'raw', 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'output', 'raw', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'output', 'raw', 'rule', '1', 'protocol', 'udp'])
self.cli_set(['firewall', 'ipv4', 'prerouting', 'raw', 'rule', '1', 'action', 'notrack'])
self.cli_set(['firewall', 'ipv4', 'prerouting', 'raw', 'rule', '1', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv4', 'prerouting', 'raw', 'rule', '1', 'destination', 'port', '23'])
self.cli_commit()
mark_hex = "{0:#010x}".format(int(conn_mark))
nftables_search = [
['chain VYOS_FORWARD_filter'],
['type filter hook forward priority filter; policy accept;'],
['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'],
['log prefix "[ipv4-FWD-filter-default-D]"','FWD-filter default-action drop', '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'],
['INP-filter default-action accept', 'accept'],
['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'],
['log prefix "[ipv4-OUT-filter-default-D]"','OUT-filter default-action drop', 'drop'],
['chain VYOS_OUTPUT_raw'],
['type filter hook output priority raw; policy accept;'],
['udp', 'accept'],
['OUT-raw default-action drop', 'drop'],
['chain VYOS_PREROUTING_raw'],
['type filter hook prerouting priority raw; policy accept;'],
['tcp dport 23', 'notrack'],
['PRE-raw default-action accept', 'accept'],
['chain NAME_smoketest'],
['saddr 172.16.20.10', 'daddr 172.16.10.10', 'log prefix "[ipv4-NAM-smoketest-1-A]" log level debug', 'ip ttl 15', 'accept'],
['tcp flags syn / syn,ack', 'tcp dport 8888', 'log prefix "[ipv4-NAM-smoketest-2-R]" log level err', 'ip ttl > 102', 'reject'],
['log prefix "[ipv4-NAM-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, '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'])
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', '198.51.100.1-198.51.100.50'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'mark', '1010'])
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', 'mark', '!98765'])
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 accept;'],
['ip saddr 198.51.100.1-198.51.100.50', 'meta mark 0x000003f2', f'jump NAME_{name}'],
['FWD-filter default-action drop', 'drop'],
['chain VYOS_INPUT_filter'],
['type filter hook input priority filter; policy accept;'],
['meta mark != 0x000181cd', 'meta l4proto tcp','queue to 3'],
['meta l4proto udp','queue flags bypass,fanout to 0-15'],
['INP-filter default-action accept', 'accept'],
[f'chain NAME_{name}'],
['ip length { 64, 512, 1024 }', 'ip dscp { 0x11, 0x34 }', f'log prefix "[ipv4-NAM-{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 "[ipv4-NAM-{name}-default-D]"', 'drop']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
def test_ipv4_synproxy(self):
tcp_mss = '1460'
tcp_wscale = '7'
dport = '22'
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'destination', 'port', dport])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'synproxy', 'tcp', 'mss', tcp_mss])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'synproxy', 'tcp', 'window-scale', tcp_wscale])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'action', 'synproxy'])
self.cli_commit()
nftables_search = [
[f'tcp dport {dport} ct state invalid,untracked', f'synproxy mss {tcp_mss} wscale {tcp_wscale} timestamp sack-perm']
]
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, '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_ipv4_dynamic_groups(self):
group01 = 'knock01'
group02 = 'allowed'
self.cli_set(['firewall', 'group', 'dynamic-group', 'address-group', group01])
self.cli_set(['firewall', 'group', 'dynamic-group', 'address-group', group02])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'destination', 'port', '5151'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'add-address-to-group', 'source-address', 'address-group', group01])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '10', 'add-address-to-group', 'source-address', 'timeout', '30s'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'destination', 'port', '7272'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'source', 'group', 'dynamic-address-group', group01])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'add-address-to-group', 'source-address', 'address-group', group02])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '20', 'add-address-to-group', 'source-address', 'timeout', '5m'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '30', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '30', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '30', 'destination', 'port', '22'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '30', 'source', 'group', 'dynamic-address-group', group02])
self.cli_commit()
nftables_search = [
[f'DA_{group01}'],
[f'DA_{group02}'],
['type ipv4_addr'],
['flags dynamic,timeout'],
['chain VYOS_INPUT_filter {'],
['type filter hook input priority filter', 'policy accept'],
['tcp dport 5151', f'update @DA_{group01}', '{ ip saddr timeout 30s }', 'drop'],
['tcp dport 7272', f'ip saddr @DA_{group01}', f'update @DA_{group02}', '{ ip saddr timeout 5m }', 'drop'],
['tcp dport 22', f'ip saddr @DA_{group02}', 'accept']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
def test_ipv6_basic_rules(self):
name = 'v6-smoketest'
interface = 'eth0'
self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', name, '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::1-2002::10'])
self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'destination', 'address', '2002::1:1'])
self.cli_set(['firewall', 'ipv6', 'name', name, 'rule', '1', 'log'])
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', 'default-log'])
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', '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', 'name', interface])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'default-log'])
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', 'name', interface])
self.cli_set(['firewall', 'ipv6', 'output', 'raw', 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'output', 'raw', 'rule', '1', 'action', 'notrack'])
self.cli_set(['firewall', 'ipv6', 'output', 'raw', 'rule', '1', 'protocol', 'udp'])
self.cli_set(['firewall', 'ipv6', 'prerouting', 'raw', 'rule', '1', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'prerouting', 'raw', 'rule', '1', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv6', 'prerouting', 'raw', 'rule', '1', 'destination', 'port', '23'])
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'],
['log prefix "[ipv6-FWD-filter-default-A]"','FWD-filter default-action accept', 'accept'],
['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'],
['INP-filter default-action accept', 'accept'],
['chain VYOS_IPV6_OUTPUT_filter'],
['type filter hook output priority filter; policy accept;'],
['meta l4proto gre', f'oifname "{interface}"', 'return'],
['log prefix "[ipv6-OUT-filter-default-D]"','OUT-filter default-action drop', 'drop'],
['chain VYOS_IPV6_OUTPUT_raw'],
['type filter hook output priority raw; policy accept;'],
['udp', 'notrack'],
['OUT-raw default-action drop', 'drop'],
['chain VYOS_IPV6_PREROUTING_raw'],
['type filter hook prerouting priority raw; policy accept;'],
['tcp dport 23', 'drop'],
['PRE-raw default-action accept', 'accept'],
[f'chain NAME6_{name}'],
['saddr 2002::1-2002::10', 'daddr 2002::1:1', 'log prefix "[ipv6-NAM-v6-smoketest-1-A]" log level crit', 'accept'],
[f'"NAM-{name} default-action drop"', f'log prefix "[ipv6-NAM-{name}-default-D]"', 'drop'],
['jump VYOS_STATE_POLICY6'],
['chain VYOS_STATE_POLICY6'],
['ct state established', 'accept'],
['ct state invalid', 'drop'],
['ct state related', 'accept']
]
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
def test_ipv6_advanced(self):
name = 'v6-smoke-adv'
self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', name, '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', 'mark', '!6655-7766'])
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', 'meta mark != 0x000019ff-0x00001e56', f'jump NAME6_{name}'],
[f'chain NAME6_{name}'],
['ip6 length { 65, 513, 1025 }', 'ip6 dscp { af21, 0x35 }', 'accept'],
[f'log prefix "[ipv6-NAM-{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, '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_ipv6_dynamic_groups(self):
group01 = 'knock01'
group02 = 'allowed'
self.cli_set(['firewall', 'group', 'dynamic-group', 'ipv6-address-group', group01])
self.cli_set(['firewall', 'group', 'dynamic-group', 'ipv6-address-group', group02])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '10', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '10', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '10', 'destination', 'port', '5151'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '10', 'add-address-to-group', 'source-address', 'address-group', group01])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '10', 'add-address-to-group', 'source-address', 'timeout', '30s'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'destination', 'port', '7272'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'source', 'group', 'dynamic-address-group', group01])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'add-address-to-group', 'source-address', 'address-group', group02])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '20', 'add-address-to-group', 'source-address', 'timeout', '5m'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '30', 'action', 'accept'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '30', 'protocol', 'tcp'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '30', 'destination', 'port', '22'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '30', 'source', 'group', 'dynamic-address-group', group02])
self.cli_commit()
nftables_search = [
[f'DA6_{group01}'],
[f'DA6_{group02}'],
['type ipv6_addr'],
['flags dynamic,timeout'],
['chain VYOS_IPV6_INPUT_filter {'],
['type filter hook input priority filter', 'policy accept'],
['tcp dport 5151', f'update @DA6_{group01}', '{ ip6 saddr timeout 30s }', 'drop'],
['tcp dport 7272', f'ip6 saddr @DA6_{group01}', f'update @DA6_{group02}', '{ ip6 saddr timeout 5m }', 'drop'],
['tcp dport 22', f'ip6 saddr @DA6_{group02}', 'accept']
]
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
def test_ipv4_global_state(self):
self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
self.cli_commit()
nftables_search = [
['jump VYOS_STATE_POLICY'],
['chain VYOS_STATE_POLICY'],
['ct state established', 'accept'],
['ct state invalid', 'drop'],
['ct state related', 'accept']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
# Check conntrack is enabled from state-policy
self.verify_nftables_chain([['accept']], 'ip vyos_conntrack', 'FW_CONNTRACK')
self.verify_nftables_chain([['accept']], 'ip6 vyos_conntrack', 'FW_CONNTRACK')
def test_ipv4_state_and_status_rules(self):
name = 'smoketest-state'
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'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'state', 'related'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'action', 'reject'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '2', 'state', 'invalid'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '3', 'state', 'new'])
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'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'state', 'established'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '4', 'connection-status', 'nat', 'source'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '5', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '5', 'state', 'related'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '5', 'conntrack-helper', 'ftp'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '5', 'conntrack-helper', 'pptp'])
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'],
['ct state related', 'ct helper { "ftp", "pptp" }', 'accept'],
['drop', f'comment "NAM-{name} default-action drop"']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
# Check conntrack
self.verify_nftables_chain([['accept']], 'ip vyos_conntrack', 'FW_CONNTRACK')
self.verify_nftables_chain([['return']], 'ip6 vyos_conntrack', 'FW_CONNTRACK')
def test_bridge_firewall(self):
name = 'smoketest'
interface_in = 'eth0'
mac_address = '00:53:00:00:00:01'
vlan_id = '12'
vlan_prior = '3'
# Check bridge-nf-call-iptables default value: 0
self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-iptables'), '0')
self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-ip6tables'), '0')
self.cli_set(['firewall', 'group', 'ipv6-address-group', 'AGV6', 'address', '2001:db1::1'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'apply-to-bridged-traffic', 'ipv4'])
self.cli_set(['firewall', 'global-options', 'apply-to-bridged-traffic', 'invalid-connections'])
self.cli_set(['firewall', 'bridge', 'name', name, 'default-action', 'accept'])
self.cli_set(['firewall', 'bridge', 'name', name, 'default-log'])
self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'source', 'mac-address', mac_address])
self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'inbound-interface', 'name', interface_in])
self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'log'])
self.cli_set(['firewall', 'bridge', 'name', name, 'rule', '1', 'log-options', 'level', 'crit'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'default-action', 'drop'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'default-log'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '1', 'vlan', 'id', vlan_id])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '1', 'vlan', 'ethernet-type', 'ipv4'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '2', 'action', 'jump'])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '2', 'jump-target', name])
self.cli_set(['firewall', 'bridge', 'forward', 'filter', 'rule', '2', 'vlan', 'priority', vlan_prior])
self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'inbound-interface', 'name', interface_in])
self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'source', 'address', '192.0.2.2'])
self.cli_set(['firewall', 'bridge', 'input', 'filter', 'rule', '1', 'state', 'new'])
self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'action', 'notrack'])
self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '1', 'destination', 'group', 'ipv6-address-group', 'AGV6'])
self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '2', 'ethernet-type', 'arp'])
self.cli_set(['firewall', 'bridge', 'prerouting', 'filter', 'rule', '2', 'action', 'accept'])
self.cli_commit()
nftables_search = [
['set A6_AGV6'],
['type ipv6_addr'],
['elements', '2001:db1::1'],
['chain VYOS_FORWARD_filter'],
['type filter hook forward priority filter; policy accept;'],
['jump VYOS_STATE_POLICY'],
[f'vlan id {vlan_id}', 'vlan type ip', 'accept'],
[f'vlan pcp {vlan_prior}', f'jump NAME_{name}'],
['log prefix "[bri-FWD-filter-default-D]"', 'drop', 'FWD-filter default-action drop'],
[f'chain NAME_{name}'],
[f'ether saddr {mac_address}', f'iifname "{interface_in}"', f'log prefix "[bri-NAM-{name}-1-A]" log level crit', 'accept'],
['accept', f'{name} default-action accept'],
['chain VYOS_INPUT_filter'],
['type filter hook input priority filter; policy accept;'],
['ct state new', 'ip saddr 192.0.2.2', f'iifname "{interface_in}"', 'accept'],
['chain VYOS_OUTPUT_filter'],
['type filter hook output priority filter; policy accept;'],
['ct state invalid', 'udp sport 67', 'udp dport 68', 'accept'],
['ct state invalid', 'ether type arp', 'accept'],
['chain VYOS_PREROUTING_filter'],
['type filter hook prerouting priority filter; policy accept;'],
['ip6 daddr @A6_AGV6', 'notrack'],
['ether type arp', 'accept']
]
self.verify_nftables(nftables_search, 'bridge vyos_filter')
## Check bridge-nf-call-iptables is set to 1, and for ipv6 remains on default 0
self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-iptables'), '1')
self.assertEqual(get_sysctl('net.bridge.bridge-nf-call-ip6tables'), '0')
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)
def test_timeout_sysctl(self):
timeout_config = {
'net.netfilter.nf_conntrack_icmp_timeout' :{
'cli' : ['global-options', 'timeout', 'icmp'],
'test_value' : '180',
'default_value' : '30',
},
'net.netfilter.nf_conntrack_generic_timeout' :{
'cli' : ['global-options', 'timeout', 'other'],
'test_value' : '1200',
'default_value' : '600',
},
'net.netfilter.nf_conntrack_tcp_timeout_close_wait' :{
'cli' : ['global-options', 'timeout', 'tcp', 'close-wait'],
'test_value' : '30',
'default_value' : '60',
},
'net.netfilter.nf_conntrack_tcp_timeout_close' :{
'cli' : ['global-options', 'timeout', 'tcp', 'close'],
'test_value' : '20',
'default_value' : '10',
},
'net.netfilter.nf_conntrack_tcp_timeout_established' :{
'cli' : ['global-options', 'timeout', 'tcp', 'established'],
'test_value' : '1000',
'default_value' : '432000',
},
'net.netfilter.nf_conntrack_tcp_timeout_fin_wait' :{
'cli' : ['global-options', 'timeout', 'tcp', 'fin-wait'],
'test_value' : '240',
'default_value' : '120',
},
'net.netfilter.nf_conntrack_tcp_timeout_last_ack' :{
'cli' : ['global-options', 'timeout', 'tcp', 'last-ack'],
'test_value' : '300',
'default_value' : '30',
},
'net.netfilter.nf_conntrack_tcp_timeout_syn_recv' :{
'cli' : ['global-options', 'timeout', 'tcp', 'syn-recv'],
'test_value' : '100',
'default_value' : '60',
},
'net.netfilter.nf_conntrack_tcp_timeout_syn_sent' :{
'cli' : ['global-options', 'timeout', 'tcp', 'syn-sent'],
'test_value' : '300',
'default_value' : '120',
},
'net.netfilter.nf_conntrack_tcp_timeout_time_wait' :{
'cli' : ['global-options', 'timeout', 'tcp', 'time-wait'],
'test_value' : '303',
'default_value' : '120',
},
'net.netfilter.nf_conntrack_udp_timeout' :{
'cli' : ['global-options', 'timeout', 'udp', 'other'],
'test_value' : '90',
'default_value' : '30',
},
'net.netfilter.nf_conntrack_udp_timeout_stream' :{
'cli' : ['global-options', 'timeout', 'udp', 'stream'],
'test_value' : '200',
'default_value' : '180',
},
}
for parameter, parameter_config in timeout_config.items():
self.cli_set(['firewall'] + parameter_config['cli'] + [parameter_config['test_value']])
# commit changes
self.cli_commit()
# validate configuration
for parameter, parameter_config in timeout_config.items():
tmp = parameter_config['test_value']
self.assertEqual(get_sysctl(f'{parameter}'), tmp)
# delete all configuration options and revert back to defaults
self.cli_delete(['firewall', 'global-options', 'timeout'])
self.cli_commit()
# validate configuration
for parameter, parameter_config in timeout_config.items():
self.assertEqual(get_sysctl(f'{parameter}'), parameter_config['default_value'])
### Zone
def test_zone_basic(self):
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketestv6', 'default-action', 'drop'])
self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'interface', 'eth0'])
self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'from', 'smoketest-local', 'firewall', 'name', 'smoketest'])
self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'intra-zone-filtering', 'firewall', 'ipv6-name', 'smoketestv6'])
self.cli_set(['firewall', 'zone', 'smoketest-local', 'local-zone'])
self.cli_set(['firewall', 'zone', 'smoketest-local', 'from', 'smoketest-eth0', 'firewall', 'name', 'smoketest'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'log'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
self.cli_commit()
nftables_search = [
['chain VYOS_ZONE_FORWARD'],
['type filter hook forward priority filter + 1'],
['chain VYOS_ZONE_OUTPUT'],
['type filter hook output priority filter + 1'],
['chain VYOS_ZONE_LOCAL'],
['type filter hook input priority filter + 1'],
['chain VZONE_smoketest-eth0'],
['chain VZONE_smoketest-local_IN'],
['chain VZONE_smoketest-local_OUT'],
['oifname "eth0"', 'jump VZONE_smoketest-eth0'],
['jump VZONE_smoketest-local_IN'],
['jump VZONE_smoketest-local_OUT'],
['iifname "eth0"', 'jump NAME_smoketest'],
['oifname "eth0"', 'jump NAME_smoketest'],
['jump VYOS_STATE_POLICY'],
['chain VYOS_STATE_POLICY'],
['ct state established', 'log prefix "[STATE-POLICY-EST-A]"', 'accept'],
['ct state invalid', 'drop'],
['ct state related', 'accept']
]
nftables_search_v6 = [
['chain VYOS_ZONE_FORWARD'],
['type filter hook forward priority filter + 1'],
['chain VYOS_ZONE_OUTPUT'],
['type filter hook output priority filter + 1'],
['chain VYOS_ZONE_LOCAL'],
['type filter hook input priority filter + 1'],
['chain VZONE_smoketest-eth0'],
['chain VZONE_smoketest-local_IN'],
['chain VZONE_smoketest-local_OUT'],
['oifname "eth0"', 'jump VZONE_smoketest-eth0'],
['jump VZONE_smoketest-local_IN'],
['jump VZONE_smoketest-local_OUT'],
['iifname "eth0"', 'jump NAME6_smoketestv6'],
['jump VYOS_STATE_POLICY6'],
['chain VYOS_STATE_POLICY6'],
['ct state established', 'log prefix "[STATE-POLICY-EST-A]"', 'accept'],
['ct state invalid', 'drop'],
['ct state related', 'accept']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
self.verify_nftables(nftables_search_v6, 'ip6 vyos_filter')
def test_flow_offload(self):
self.cli_set(['interfaces', 'ethernet', 'eth0', 'vif', '10'])
self.cli_set(['firewall', 'flowtable', 'smoketest', 'interface', 'eth0.10'])
self.cli_set(['firewall', 'flowtable', 'smoketest', 'offload', 'hardware'])
# QEMU virtual NIC does not support hw-tc-offload
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(['firewall', 'flowtable', 'smoketest', 'offload', 'software'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'action', 'offload'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'offload-target', 'smoketest'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'protocol', 'tcp_udp'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'state', 'established'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'state', 'related'])
self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '1', 'action', 'offload'])
self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '1', 'offload-target', 'smoketest'])
self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '1', 'protocol', 'tcp_udp'])
self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '1', 'state', 'established'])
self.cli_set(['firewall', 'ipv6', 'forward', 'filter', 'rule', '1', 'state', 'related'])
self.cli_commit()
nftables_search = [
['flowtable VYOS_FLOWTABLE_smoketest'],
['hook ingress priority filter'],
['devices = { eth0.10 }'],
['ct state { established, related }', 'meta l4proto { tcp, udp }', 'flow add @VYOS_FLOWTABLE_smoketest'],
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
# Check conntrack
self.verify_nftables_chain([['accept']], 'ip vyos_conntrack', 'FW_CONNTRACK')
self.verify_nftables_chain([['accept']], 'ip6 vyos_conntrack', 'FW_CONNTRACK')
def test_zone_flow_offload(self):
self.cli_set(['firewall', 'flowtable', 'smoketest', 'interface', 'eth0'])
self.cli_set(['firewall', 'flowtable', 'smoketest', 'offload', 'hardware'])
# QEMU virtual NIC does not support hw-tc-offload
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(['firewall', 'flowtable', 'smoketest', 'offload', 'software'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'action', 'offload'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'rule', '1', 'offload-target', 'smoketest'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest', 'rule', '1', 'action', 'offload'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest', 'rule', '1', 'offload-target', 'smoketest'])
self.cli_commit()
nftables_search = [
['chain NAME_smoketest'],
['flow add @VYOS_FLOWTABLE_smoketest']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
nftables_search = [
['chain NAME6_smoketest'],
['flow add @VYOS_FLOWTABLE_smoketest']
]
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
# Check conntrack
self.verify_nftables_chain([['accept']], 'ip vyos_conntrack', 'FW_CONNTRACK')
self.verify_nftables_chain([['accept']], 'ip6 vyos_conntrack', 'FW_CONNTRACK')
def test_ipsec_metadata_match(self):
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in4', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in4', 'rule', '1', 'ipsec', 'match-ipsec-in'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in4', 'rule', '2', 'action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in4', 'rule', '2', 'ipsec', 'match-none-in'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-out4', 'rule', '1', 'action', 'continue'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-out4', 'rule', '1', 'ipsec', 'match-ipsec-out'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-out4', 'rule', '2', 'action', 'reject'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-out4', 'rule', '2', 'ipsec', 'match-none-out'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-in6', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-in6', 'rule', '1', 'ipsec', 'match-ipsec-in'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-in6', 'rule', '2', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-in6', 'rule', '2', 'ipsec', 'match-none-in'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-out6', 'rule', '1', 'action', 'continue'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-out6', 'rule', '1', 'ipsec', 'match-ipsec-out'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-out6', 'rule', '2', 'action', 'reject'])
self.cli_set(['firewall', 'ipv6', 'name', 'smoketest-ipsec-out6', 'rule', '2', 'ipsec', 'match-none-out'])
self.cli_commit()
nftables_search = [
['meta ipsec exists', 'accept comment'],
['meta ipsec missing', 'drop comment'],
['rt ipsec exists', 'continue comment'],
['rt ipsec missing', 'reject comment'],
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '1', 'jump-target', 'smoketest-ipsec-in4'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'jump-target', 'smoketest-ipsec-in4'])
self.cli_set(['firewall', 'ipv4', 'prerouting', 'raw', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'prerouting', 'raw', 'rule', '1', 'jump-target', 'smoketest-ipsec-in4'])
self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '1', 'jump-target', 'smoketest-ipsec-out4'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '1', 'jump-target', 'smoketest-ipsec-out4'])
# All valid directional usage of ipsec matches
self.cli_commit()
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in-indirect', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-ipsec-in-indirect', 'rule', '1', 'jump-target', 'smoketest-ipsec-in4'])
self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'output', 'filter', 'rule', '1', 'jump-target', 'smoketest-ipsec-in-indirect'])
# nft does not support ANY usage of 'meta ipsec' under an output hook, it will fail to load cfg
with self.assertRaises(ConfigSessionError):
self.cli_commit()
def test_cyclic_jump_validation(self):
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-1', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-1', 'rule', '1', 'jump-target', 'smoketest-cycle-2'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-2', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-2', 'rule', '1', 'jump-target', 'smoketest-cycle-3'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-3', 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-3', 'rule', '1', 'log'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'input', 'filter', 'rule', '1', 'jump-target', 'smoketest-cycle-1'])
# Multi-level jumps are unwise but allowed
self.cli_commit()
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-3', 'rule', '1', 'action', 'jump'])
self.cli_set(['firewall', 'ipv4', 'name', 'smoketest-cycle-3', 'rule', '1', 'jump-target', 'smoketest-cycle-1'])
# nft will fail to load cyclic jumps in any form, whether the rule is reachable or not.
# It should be caught by conf validation.
with self.assertRaises(ConfigSessionError):
self.cli_commit()
def test_gre_match(self):
name = 'smoketest-gre'
self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'return'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'protocol', 'gre'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'gre', 'flags', 'key'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'gre', 'flags', 'checksum', 'unset'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'gre', 'key', '1234'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'log'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'action', 'continue'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'protocol', 'gre'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'gre', 'inner-proto', '0x6558'])
self.cli_set(['firewall', 'ipv4', 'forward', 'filter', 'rule', '2', 'log'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'protocol', 'gre'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'gre', 'flags', 'checksum'])
self.cli_set(['firewall', 'ipv6', 'input', 'filter', 'rule', '3', 'gre', 'key', '4321'])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '4', 'action', 'reject'])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '4', 'protocol', 'gre'])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '4', 'gre', 'version', 'pptp'])
self.cli_commit()
nftables_search_v4 = [
['gre protocol 0x6558', 'continue comment'],
['gre flags & 5 == 4 @th,32,32 0x4d2', 'accept comment'],
]
nftables_search_v6 = [
['gre flags & 5 == 5 @th,64,32 0x10e1', 'drop comment'],
['gre version 1', 'reject comment'],
]
self.verify_nftables(nftables_search_v4, 'ip vyos_filter')
self.verify_nftables(nftables_search_v6, 'ip6 vyos_filter')
# GRE match will only work with protocol GRE
self.cli_delete(['firewall', 'ipv4', 'name', name, 'rule', '1', 'protocol', 'gre'])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_discard()
# GREv1 (PPTP) does not include a key field, match not available
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '4', 'gre', 'flags', 'checksum', 'unset'])
self.cli_set(['firewall', 'ipv6', 'output', 'filter', 'rule', '4', 'gre', 'key', '1234'])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
if __name__ == '__main__':
unittest.main(verbosity=2)

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