From 6fead781cb16eee0884615134d34edc31aec2705 Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Fri, 26 Jul 2024 13:25:19 +0200 Subject: vrf: T6603: conntrack ct_iface_map must only contain one entry for iifname/oifname When any of the following features NAT, NAT66 or Firewall is enabled, for every VRF on the CLI we install one rule into nftables for conntrack: chain vrf_zones_ct_in { type filter hook prerouting priority raw; policy accept; counter packets 3113 bytes 32227 ct original zone set iifname map @ct_iface_map counter packets 8550 bytes 80739 ct original zone set iifname map @ct_iface_map counter packets 5644 bytes 67697 ct original zone set iifname map @ct_iface_map } This is superfluous. (cherry picked from commit d6e9824f1612bd8c876437c071f31a1a0f44af5d) --- smoketest/scripts/cli/test_vrf.py | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'smoketest') diff --git a/smoketest/scripts/cli/test_vrf.py b/smoketest/scripts/cli/test_vrf.py index 176882ca5..2bb6c91c1 100755 --- a/smoketest/scripts/cli/test_vrf.py +++ b/smoketest/scripts/cli/test_vrf.py @@ -19,6 +19,8 @@ import os import unittest from base_vyostest_shim import VyOSUnitTestSHIM +from json import loads +from jmespath import search from vyos.configsession import ConfigSessionError from vyos.ifconfig import Interface @@ -28,6 +30,7 @@ from vyos.utils.network import get_interface_config from vyos.utils.network import get_vrf_tableid from vyos.utils.network import is_intf_addr_assigned from vyos.utils.network import interface_exists +from vyos.utils.process import cmd from vyos.utils.system import sysctl_read base_path = ['vrf'] @@ -557,26 +560,39 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): self.assertNotIn(f' no ipv6 nht resolve-via-default', frrconfig) def test_vrf_conntrack(self): - table = '1000' + table = '8710' nftables_rules = { 'vrf_zones_ct_in': ['ct original zone set iifname map @ct_iface_map'], 'vrf_zones_ct_out': ['ct original zone set oifname map @ct_iface_map'] } - self.cli_set(base_path + ['name', 'blue', 'table', table]) + self.cli_set(base_path + ['name', 'randomVRF', 'table', '1000']) self.cli_commit() # Conntrack rules should not be present for chain, rule in nftables_rules.items(): self.verify_nftables_chain(rule, 'inet vrf_zones', chain, inverse=True) + # conntrack is only enabled once NAT, NAT66 or firewalling is enabled self.cli_set(['nat']) - self.cli_commit() + + for vrf in vrfs: + base = base_path + ['name', vrf] + self.cli_set(base + ['table', table]) + table = str(int(table) + 1) + # We need the commit inside the loop to trigger the bug in T6603 + self.cli_commit() # Conntrack rules should now be present for chain, rule in nftables_rules.items(): self.verify_nftables_chain(rule, 'inet vrf_zones', chain, inverse=False) + # T6603: there should be only ONE entry for the iifname/oifname in the chains + tmp = loads(cmd('sudo nft -j list table inet vrf_zones')) + num_rules = len(search("nftables[].rule[].chain", tmp)) + # ['vrf_zones_ct_in', 'vrf_zones_ct_out'] + self.assertEqual(num_rules, 2) + self.cli_delete(['nat']) if __name__ == '__main__': -- cgit v1.2.3