# -*- coding: utf-8 -*- # Copyright 2019 Red Hat, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import os import os.path import random import shutil import tempfile from os_net_config import sriov_config from os_net_config.tests import base from os_net_config import utils class TestSriovConfig(base.TestCase): """Unit tests for methods defined in sriov_config.py""" def setUp(self): super(TestSriovConfig, self).setUp() rand = str(int(random.random() * 100000)) tmpdir = tempfile.mkdtemp() self.stub_out('os_net_config.sriov_config._SYS_CLASS_NET', tmpdir) sriov_config._UDEV_RULE_FILE = '/tmp/' + rand + 'etc_udev_rules.d'\ '80-persistent-os-net-config.rules' sriov_config._UDEV_LEGACY_RULE_FILE = '/tmp/' + rand + 'etc_udev_'\ 'rules.d_70-os-net-config-sriov.rules' sriov_config._IFUP_LOCAL_FILE = '/tmp/' + rand + 'sbin_ifup-local' sriov_config._RESET_SRIOV_RULES_FILE = '/tmp/' + rand + 'etc_udev_'\ 'rules.d_70-tripleo-reset-sriov.rules' sriov_config._ALLOCATE_VFS_FILE = '/tmp/' + rand + 'etc_sysconfig_'\ 'allocate_vfs' sriov_config._SRIOV_CONFIG_FILE = '/tmp/' + rand + 'sriov_config'\ '.yaml' def tearDown(self): super(TestSriovConfig, self).tearDown() if os.path.isfile(sriov_config._SRIOV_CONFIG_FILE): os.remove(sriov_config._SRIOV_CONFIG_FILE) if os.path.isfile(sriov_config._IFUP_LOCAL_FILE): os.remove(sriov_config._IFUP_LOCAL_FILE) shutil.rmtree(sriov_config._SYS_CLASS_NET) if os.path.isfile(sriov_config._RESET_SRIOV_RULES_FILE): os.remove(sriov_config._RESET_SRIOV_RULES_FILE) if os.path.isfile(sriov_config._ALLOCATE_VFS_FILE): os.remove(sriov_config._ALLOCATE_VFS_FILE) if os.path.isfile(sriov_config._UDEV_LEGACY_RULE_FILE): os.remove(sriov_config._UDEV_LEGACY_RULE_FILE) def test_configure_sriov_pf(self): """Test the numvfs setting for SR-IOV PF Test the udev rules created for legacy mode of SR-IOV PF """ exp_udev_content = '# This file is autogenerated by os-net-config\n'\ 'KERNEL=="p2p1", RUN+="/bin/os-net-config-sriov -n %k:10"\n'\ 'KERNEL=="p2p2", RUN+="/bin/os-net-config-sriov -n %k:12"\n' run_cmd = [] def run_ip_config_cmd_stub(*args, **kwargs): run_cmd.append(' '.join(args)) self.stub_out('os_net_config.sriov_config.run_ip_config_cmd', run_ip_config_cmd_stub) def udev_monitor_setup_stub(): return self.stub_out('os_net_config.sriov_config.udev_monitor_setup', udev_monitor_setup_stub) def udev_monitor_start_stub(observer): return self.stub_out('os_net_config.sriov_config.udev_monitor_start', udev_monitor_start_stub) def udev_monitor_stop_stub(observer): return self.stub_out('os_net_config.sriov_config.udev_monitor_stop', udev_monitor_stop_stub) def cleanup_puppet_config_stub(): return self.stub_out('os_net_config.sriov_config.cleanup_puppet_config', cleanup_puppet_config_stub) def trigger_udev_rules_stub(): return self.stub_out('os_net_config.sriov_config.trigger_udev_rules', trigger_udev_rules_stub) def reload_udev_rules_stub(): return self.stub_out('os_net_config.sriov_config.reload_udev_rules', reload_udev_rules_stub) def _wait_for_vf_creation_stub(pf_name, numvfs): numvfs_pair = {"p2p1": 10, "p2p2": 12} self.assertEqual(numvfs_pair[pf_name], numvfs) self.stub_out('os_net_config.sriov_config._wait_for_vf_creation', _wait_for_vf_creation_stub) def get_vendor_id_stub(ifname): return "0x8086" self.stub_out('os_net_config.sriov_config.get_vendor_id', get_vendor_id_stub) pf_config = [{"device_type": "pf", "name": "p2p1", "numvfs": 10, "promisc": "on", "link_mode": "legacy"}, {"device_type": "pf", "name": "p2p2", "numvfs": 12, "promisc": "off", "link_mode": "legacy"}] os.makedirs(sriov_config._SYS_CLASS_NET + "/p2p1/device") os.makedirs(sriov_config._SYS_CLASS_NET + "/p2p2/device") f = open(sriov_config._SYS_CLASS_NET + "/p2p1/device/sriov_numvfs", "w+") f.write("0") f.close() f = open(sriov_config._SYS_CLASS_NET + "/p2p2/device/sriov_numvfs", "w+") f.write("0") f.close() utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, pf_config) sriov_config.configure_logger(debug=True) sriov_config.configure_sriov_pf() f = open(sriov_config._UDEV_LEGACY_RULE_FILE, 'r') self.assertEqual(exp_udev_content, f.read()) self.assertEqual(10, sriov_config.get_numvfs('p2p1')) self.assertEqual(12, sriov_config.get_numvfs('p2p2')) def test_cleanup_puppet_config_deprecation(self): """Test the cleanup of puppet-tripleo generated config file. Usecase: The ifup-local has the default content generated by puppet-tripleo """ content = '#!/bin/bash\n'\ '/etc/sysconfig/allocate_vfs $1' f = open(sriov_config._RESET_SRIOV_RULES_FILE, "w+") f.close() f = open(sriov_config._ALLOCATE_VFS_FILE, "w+") f.close() f = open(sriov_config._IFUP_LOCAL_FILE, "w+") f.write(content) f.close() sriov_config.cleanup_puppet_config() self.assertEqual(False, os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE)) self.assertEqual(False, os.path.exists(sriov_config._ALLOCATE_VFS_FILE)) self.assertEqual(False, os.path.exists(sriov_config._IFUP_LOCAL_FILE)) def test_cleanup_puppet_config_new(self): """Test the cleanup of puppet-tripleo generated config file. Usecase: When os-net-config is run on fresh deployments, all these files will not exist. """ sriov_config.cleanup_puppet_config() self.assertEqual(False, os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE)) self.assertEqual(False, os.path.exists(sriov_config._ALLOCATE_VFS_FILE)) self.assertEqual(False, os.path.exists(sriov_config._IFUP_LOCAL_FILE)) def test_cleanup_puppet_config_modified(self): """Test the cleanup of puppet-tripleo generated config file Usecase: When os-net-config is run first time after the deprecation of NeutronSriovNumVFs and ifup-local has contents other than invoking allocate_vfs. """ content = '#!/bin/bash\n'\ '/etc/sysconfig/allocate_vfs $1\n'\ '/usr/sbin/ifup eth0' mod_content = '#!/bin/bash\n'\ '/usr/sbin/ifup eth0' f = open(sriov_config._IFUP_LOCAL_FILE, "w+") f.write(content) f.close() sriov_config.cleanup_puppet_config() self.assertEqual(False, os.path.exists(sriov_config._RESET_SRIOV_RULES_FILE)) self.assertEqual(False, os.path.exists(sriov_config._ALLOCATE_VFS_FILE)) self.assertEqual(True, os.path.exists(sriov_config._IFUP_LOCAL_FILE)) f = open(sriov_config._IFUP_LOCAL_FILE, "r") self.assertEqual(mod_content, f.read()) def test_numvfs_config(self): """Test the numvfs config with valid arguments""" os.makedirs(sriov_config._SYS_CLASS_NET + "/p2p1/device") f = open(sriov_config._SYS_CLASS_NET + "/p2p1/device/sriov_numvfs", "w+") f.write("0") f.close() self.assertEqual(None, sriov_config.main(['ARG0', '-n', 'p2p1:15'])) self.assertEqual(15, sriov_config.get_numvfs('p2p1')) def test_numvfs_invalid_params(self): """Test the numvfs config with invalid arguments""" os.makedirs(sriov_config._SYS_CLASS_NET + "/p2p1/device") f = open(sriov_config._SYS_CLASS_NET + "/p2p1/device/sriov_numvfs", "w+") f.write("0") f.close() self.assertEqual(1, sriov_config.main(['ARG0', '-n', 'p2p1:15a'])) self.assertEqual(0, sriov_config.get_numvfs('p2p1')) def test_numvfs_preconfigured(self): """Test the numvfs config while its already configured""" os.makedirs(sriov_config._SYS_CLASS_NET + "/p2p1/device") f = open(sriov_config._SYS_CLASS_NET + "/p2p1/device/sriov_numvfs", "w+") f.write("10") f.close() self.assertEqual(None, sriov_config.main(['ARG0', '-n', 'p2p1:15'])) self.assertEqual(10, sriov_config.get_numvfs('p2p1')) def test_configure_sriov_vf(self): """Test configuration of SR-IOV VF settings""" vf_config = [{"device_type": "vf", "device": {"name": "p2p1", "vfid": 1}, "promisc": "on", "vlan_id": 101, "qos": 5, "macaddr": "AA:BB:CC:DD:EE:FF", "spoofcheck": "on", "state": "auto", "trust": "on", "name": "p2p1_1"}] exp_cmds = ["ip link set dev p2p1 vf 1 mac AA:BB:CC:DD:EE:FF", "ip link set dev p2p1 vf 1 vlan 101 qos 5", "ip link set dev p2p1_1 promisc on", "ip link set dev p2p1 vf 1 spoofchk on", "ip link set dev p2p1 vf 1 state auto", "ip link set dev p2p1 vf 1 trust on"] run_cmd = [] def run_ip_config_cmd_stub(*args, **kwargs): run_cmd.append(' '.join(args)) self.stub_out('os_net_config.sriov_config.run_ip_config_cmd', run_ip_config_cmd_stub) utils.write_yaml_config(sriov_config._SRIOV_CONFIG_FILE, vf_config) sriov_config.configure_sriov_vf() for cmd in exp_cmds: self.assertIn(cmd, run_cmd)