From 17c12bde5c6f314311e7524842fd1ddc254009b4 Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Tue, 23 Jul 2024 19:03:07 +0200 Subject: interface: T6592: remove interface from conntrack ct_iface_map on deletion We always have had stale interface entries in the ct_iface_map of nftables/ conntrack for any interface that once belonged to a VRF. This commit will always clean the nftables interface map when the interface is deleted from the system. --- smoketest/scripts/cli/test_interfaces_l2tpv3.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'smoketest/scripts') diff --git a/smoketest/scripts/cli/test_interfaces_l2tpv3.py b/smoketest/scripts/cli/test_interfaces_l2tpv3.py index af3d49f75..abc55e6d2 100755 --- a/smoketest/scripts/cli/test_interfaces_l2tpv3.py +++ b/smoketest/scripts/cli/test_interfaces_l2tpv3.py @@ -20,7 +20,7 @@ import unittest from base_interfaces_test import BasicInterfaceTest from vyos.utils.process import cmd - +from vyos.utils.kernel import unload_kmod class L2TPv3InterfaceTest(BasicInterfaceTest.TestCase): @classmethod def setUpClass(cls): @@ -62,7 +62,6 @@ if __name__ == '__main__': # reloaded on demand - not needed but test more and more features for module in ['l2tp_ip6', 'l2tp_ip', 'l2tp_eth', 'l2tp_eth', 'l2tp_netlink', 'l2tp_core']: - if os.path.exists(f'/sys/module/{module}'): - cmd(f'sudo rmmod {module}') + unload_kmod(module) unittest.main(verbosity=2) -- cgit v1.2.3 From 1c42ee9d16dd49fff2cbde652bf24a38f364526c Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Wed, 24 Jul 2024 11:19:16 +0200 Subject: smoketest: T6592: verify no interface stalls in conntrack ct_iface_map on deletion Now that interfaces are deleted from ct_iface_map during deletion it's time to also add a smoketest ensuring there is no entry in the ct_iface_map once an interface was deleted from the CLI. --- python/vyos/utils/network.py | 28 +++++++++++++++++++++++++++ smoketest/scripts/cli/base_interfaces_test.py | 10 +++++++--- 2 files changed, 35 insertions(+), 3 deletions(-) (limited to 'smoketest/scripts') diff --git a/python/vyos/utils/network.py b/python/vyos/utils/network.py index 8406a5638..8fce08de0 100644 --- a/python/vyos/utils/network.py +++ b/python/vyos/utils/network.py @@ -569,3 +569,31 @@ def ipv6_prefix_length(low, high): return plen + i + 1 return None + +def get_nft_vrf_zone_mapping() -> dict: + """ + Retrieve current nftables conntrack mapping list from Kernel + + returns: [{'interface': 'red', 'vrf_tableid': 1000}, + {'interface': 'eth2', 'vrf_tableid': 1000}, + {'interface': 'blue', 'vrf_tableid': 2000}] + """ + from json import loads + from jmespath import search + from vyos.utils.process import cmd + output = [] + tmp = loads(cmd('sudo nft -j list table inet vrf_zones')) + # {'nftables': [{'metainfo': {'json_schema_version': 1, + # 'release_name': 'Old Doc Yak #3', + # 'version': '1.0.9'}}, + # {'table': {'family': 'inet', 'handle': 6, 'name': 'vrf_zones'}}, + # {'map': {'elem': [['eth0', 666], + # ['dum0', 666], + # ['wg500', 666], + # ['bond10.666', 666]], + vrf_list = search('nftables[].map.elem | [0]', tmp) + if not vrf_list: + return output + for (vrf_name, vrf_id) in vrf_list: + output.append({'interface' : vrf_name, 'vrf_tableid' : vrf_id}) + return output diff --git a/smoketest/scripts/cli/base_interfaces_test.py b/smoketest/scripts/cli/base_interfaces_test.py index 4072fd5c2..012bd0524 100644 --- a/smoketest/scripts/cli/base_interfaces_test.py +++ b/smoketest/scripts/cli/base_interfaces_test.py @@ -15,7 +15,6 @@ from netifaces import AF_INET from netifaces import AF_INET6 from netifaces import ifaddresses -from netifaces import interfaces from base_vyostest_shim import VyOSUnitTestSHIM @@ -25,13 +24,15 @@ from vyos.ifconfig import Interface from vyos.ifconfig import Section from vyos.utils.file import read_file from vyos.utils.dict import dict_search +from vyos.utils.process import cmd from vyos.utils.process import process_named_running from vyos.utils.network import get_interface_config from vyos.utils.network import get_interface_vrf from vyos.utils.network import get_vrf_tableid -from vyos.utils.process import cmd +from vyos.utils.network import interface_exists from vyos.utils.network import is_intf_addr_assigned from vyos.utils.network import is_ipv6_link_local +from vyos.utils.network import get_nft_vrf_zone_mapping from vyos.xml_ref import cli_defined dhclient_base_dir = directories['isc_dhclient_dir'] @@ -117,8 +118,11 @@ class BasicInterfaceTest: self.cli_commit() # Verify that no previously interface remained on the system + ct_map = get_nft_vrf_zone_mapping() for intf in self._interfaces: - self.assertNotIn(intf, interfaces()) + self.assertFalse(interface_exists(intf)) + for map_entry in ct_map: + self.assertNotEqual(intf, map_entry['interface']) # No daemon started during tests should remain running for daemon in ['dhcp6c', 'dhclient']: -- cgit v1.2.3