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-rwxr-xr-xsmoketest/scripts/cli/test_system_conntrack.py224
1 files changed, 224 insertions, 0 deletions
diff --git a/smoketest/scripts/cli/test_system_conntrack.py b/smoketest/scripts/cli/test_system_conntrack.py
new file mode 100755
index 000000000..83861c96d
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+++ b/smoketest/scripts/cli/test_system_conntrack.py
@@ -0,0 +1,224 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import unittest
+
+from base_vyostest_shim import VyOSUnitTestSHIM
+
+from vyos.configsession import ConfigSession
+from vyos.util import read_file
+
+base_path = ['system', 'conntrack']
+
+def get_sysctl(parameter):
+ tmp = parameter.replace(r'.', r'/')
+ return read_file(f'/proc/sys/{tmp}')
+
+class TestSystemConntrack(VyOSUnitTestSHIM.TestCase):
+ def tearDown(self):
+ self.cli_delete(base_path)
+ self.cli_commit()
+
+ def test_conntrack_options(self):
+ conntrack_config = {
+ 'net.netfilter.nf_conntrack_expect_max' : {
+ 'cli' : ['expect-table-size'],
+ 'test_value' : '8192',
+ 'default_value' : '2048',
+ },
+ 'net.nf_conntrack_max' :{
+ 'cli' : ['table-size'],
+ 'test_value' : '500000',
+ 'default_value' : '262144',
+ },
+ 'net.ipv4.tcp_max_syn_backlog' :{
+ 'cli' : ['tcp', 'half-open-connections'],
+ 'test_value' : '2048',
+ 'default_value' : '512',
+ },
+ 'net.netfilter.nf_conntrack_tcp_loose' :{
+ 'cli' : ['tcp', 'loose'],
+ 'test_value' : 'disable',
+ 'default_value' : '1',
+ },
+ 'net.netfilter.nf_conntrack_tcp_max_retrans' :{
+ 'cli' : ['tcp', 'max-retrans'],
+ 'test_value' : '1024',
+ 'default_value' : '3',
+ },
+ 'net.netfilter.nf_conntrack_icmp_timeout' :{
+ 'cli' : ['timeout', 'icmp'],
+ 'test_value' : '180',
+ 'default_value' : '30',
+ },
+ 'net.netfilter.nf_conntrack_generic_timeout' :{
+ 'cli' : ['timeout', 'other'],
+ 'test_value' : '1200',
+ 'default_value' : '600',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_close_wait' :{
+ 'cli' : ['timeout', 'tcp', 'close-wait'],
+ 'test_value' : '30',
+ 'default_value' : '60',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_close' :{
+ 'cli' : ['timeout', 'tcp', 'close'],
+ 'test_value' : '20',
+ 'default_value' : '10',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_established' :{
+ 'cli' : ['timeout', 'tcp', 'established'],
+ 'test_value' : '1000',
+ 'default_value' : '432000',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_fin_wait' :{
+ 'cli' : ['timeout', 'tcp', 'fin-wait'],
+ 'test_value' : '240',
+ 'default_value' : '120',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_last_ack' :{
+ 'cli' : ['timeout', 'tcp', 'last-ack'],
+ 'test_value' : '300',
+ 'default_value' : '30',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_syn_recv' :{
+ 'cli' : ['timeout', 'tcp', 'syn-recv'],
+ 'test_value' : '100',
+ 'default_value' : '60',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_syn_sent' :{
+ 'cli' : ['timeout', 'tcp', 'syn-sent'],
+ 'test_value' : '300',
+ 'default_value' : '120',
+ },
+ 'net.netfilter.nf_conntrack_tcp_timeout_time_wait' :{
+ 'cli' : ['timeout', 'tcp', 'time-wait'],
+ 'test_value' : '303',
+ 'default_value' : '120',
+ },
+ 'net.netfilter.nf_conntrack_udp_timeout' :{
+ 'cli' : ['timeout', 'udp', 'other'],
+ 'test_value' : '90',
+ 'default_value' : '30',
+ },
+ 'net.netfilter.nf_conntrack_udp_timeout_stream' :{
+ 'cli' : ['timeout', 'udp', 'stream'],
+ 'test_value' : '200',
+ 'default_value' : '180',
+ },
+ }
+
+ for parameter, parameter_config in conntrack_config.items():
+ self.cli_set(base_path + parameter_config['cli'] + [parameter_config['test_value']])
+
+ # commit changes
+ self.cli_commit()
+
+ # validate configuration
+ for parameter, parameter_config in conntrack_config.items():
+ tmp = parameter_config['test_value']
+ # net.netfilter.nf_conntrack_tcp_loose has a fancy "disable" value,
+ # make this work
+ if tmp == 'disable':
+ tmp = '0'
+ self.assertEqual(get_sysctl(f'{parameter}'), tmp)
+
+ # delete all configuration options and revert back to defaults
+ self.cli_delete(base_path)
+ self.cli_commit()
+
+ # validate configuration
+ for parameter, parameter_config in conntrack_config.items():
+ self.assertEqual(get_sysctl(f'{parameter}'), parameter_config['default_value'])
+
+
+ def test_conntrack_module_disable(self):
+ # Some features are disabled by onloading the kernel helper module(s)
+ modules = {
+ 'ftp' : {
+ 'driver' : ['nf_nat_ftp', 'nf_conntrack_ftp'],
+ },
+ 'h323' : {
+ 'driver' : ['nf_nat_h323', 'nf_conntrack_h323'],
+ },
+ 'nfs' : {
+ },
+ 'pptp' : {
+ 'driver' : ['nf_nat_pptp', 'nf_conntrack_pptp'],
+ },
+ 'sip' : {
+ 'driver' : ['nf_nat_sip', 'nf_conntrack_sip'],
+ },
+ 'sqlnet' : {
+ },
+ 'tftp' : {
+ 'driver' : ['nf_nat_tftp', 'nf_conntrack_tftp'],
+ },
+ }
+
+ for module in modules:
+ self.cli_set(base_path + ['modules', module, 'disable'])
+
+ # commit changes
+ self.cli_commit()
+
+ # verify modules are no longer loaded on the system
+ for module, module_options in modules.items():
+ if 'driver' in module_options:
+ for driver in module_options['driver']:
+ self.assertFalse(os.path.isdir(f'/sys/module/{driver}'))
+
+ # reload modules
+ for module in modules:
+ self.cli_delete(base_path + ['modules', module, 'disable'])
+
+ # commit changes
+ self.cli_commit()
+
+ # verify modules are again loaded on the system
+ for module, module_options in modules.items():
+ if 'driver' in module_options:
+ for driver in module_options['driver']:
+ self.assertTrue(os.path.isdir(f'/sys/module/{driver}'))
+
+ def test_conntrack_hash_size(self):
+ hash_size = '65536'
+ hash_size_default = '32768'
+
+ self.cli_set(base_path + ['hash-size', hash_size])
+
+ # commit changes
+ self.cli_commit()
+
+ # verify new configuration - only effective after reboot, but
+ # a valid config file is sufficient
+ tmp = read_file('/etc/modprobe.d/vyatta_nf_conntrack.conf')
+ self.assertIn(hash_size, tmp)
+
+ # Test default value by deleting the configuration
+ self.cli_delete(base_path + ['hash-size'])
+
+ # commit changes
+ self.cli_commit()
+
+ # verify new configuration - only effective after reboot, but
+ # a valid config file is sufficient
+ tmp = read_file('/etc/modprobe.d/vyatta_nf_conntrack.conf')
+ self.assertIn(hash_size_default, tmp)
+
+if __name__ == '__main__':
+ unittest.main(verbosity=2, failfast=True)