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test_interfaces_ethernet.py
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test_interfaces_ethernet.py
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#!/usr/bin/env python3
#
# Copyright (C) 2020-2022 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 re
import unittest
from glob import glob
from netifaces import AF_INET
from netifaces import AF_INET6
from netifaces import ifaddresses
from base_interfaces_test import BasicInterfaceTest
from vyos.configsession import ConfigSessionError
from vyos.ifconfig import Section
from vyos.pki import CERT_BEGIN
from vyos.template import is_ipv6
from vyos.util import cmd
from vyos.util import process_named_running
from vyos.util import read_file
from vyos.validate import is_ipv6_link_local
server_ca_root_cert_data = """
MIIBcTCCARagAwIBAgIUDcAf1oIQV+6WRaW7NPcSnECQ/lUwCgYIKoZIzj0EAwIw
HjEcMBoGA1UEAwwTVnlPUyBzZXJ2ZXIgcm9vdCBDQTAeFw0yMjAyMTcxOTQxMjBa
Fw0zMjAyMTUxOTQxMjBaMB4xHDAaBgNVBAMME1Z5T1Mgc2VydmVyIHJvb3QgQ0Ew
WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ0y24GzKQf4aM2Ir12tI9yITOIzAUj
ZXyJeCmYI6uAnyAMqc4Q4NKyfq3nBi4XP87cs1jlC1P2BZ8MsjL5MdGWozIwMDAP
BgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBRwC/YaieMEnjhYa7K3Flw/o0SFuzAK
BggqhkjOPQQDAgNJADBGAiEAh3qEj8vScsjAdBy5shXzXDVVOKWCPTdGrPKnu8UW
a2cCIQDlDgkzWmn5ujc5ATKz1fj+Se/aeqwh4QyoWCVTFLIxhQ==
"""
server_ca_intermediate_cert_data = """
MIIBmTCCAT+gAwIBAgIUNzrtHzLmi3QpPK57tUgCnJZhXXQwCgYIKoZIzj0EAwIw
HjEcMBoGA1UEAwwTVnlPUyBzZXJ2ZXIgcm9vdCBDQTAeFw0yMjAyMTcxOTQxMjFa
Fw0zMjAyMTUxOTQxMjFaMCYxJDAiBgNVBAMMG1Z5T1Mgc2VydmVyIGludGVybWVk
aWF0ZSBDQTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABEl2nJ1CzoqPV6hWII2m
eGN/uieU6wDMECTk/LgG8CCCSYb488dibUiFN/1UFsmoLIdIhkx/6MUCYh62m8U2
WNujUzBRMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFMV3YwH88I5gFsFUibbQ
kMR0ECPsMB8GA1UdIwQYMBaAFHAL9hqJ4wSeOFhrsrcWXD+jRIW7MAoGCCqGSM49
BAMCA0gAMEUCIQC/ahujD9dp5pMMCd3SZddqGC9cXtOwMN0JR3e5CxP13AIgIMQm
jMYrinFoInxmX64HfshYqnUY8608nK9D2BNPOHo=
"""
client_ca_root_cert_data = """
MIIBcDCCARagAwIBAgIUZmoW2xVdwkZSvglnkCq0AHKa6zIwCgYIKoZIzj0EAwIw
HjEcMBoGA1UEAwwTVnlPUyBjbGllbnQgcm9vdCBDQTAeFw0yMjAyMTcxOTQxMjFa
Fw0zMjAyMTUxOTQxMjFaMB4xHDAaBgNVBAMME1Z5T1MgY2xpZW50IHJvb3QgQ0Ew
WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATUpKXzQk2NOVKDN4VULk2yw4mOKPvn
mg947+VY7lbpfOfAUD0QRg95qZWCw899eKnXp/U4TkAVrmEKhUb6OJTFozIwMDAP
BgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBTXu6xGWUl25X3sBtrhm3BJSICIATAK
BggqhkjOPQQDAgNIADBFAiEAnTzEwuTI9bz2Oae3LZbjP6f/f50KFJtjLZFDbQz7
DpYCIDNRHV8zBUibC+zg5PqMpQBKd/oPfNU76nEv6xkp/ijO
"""
client_ca_intermediate_cert_data = """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"""
client_cert_data = """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"""
client_key_data = """
MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgxaxAQsJwjoOCByQE
+qSYKtKtJzbdbOnTsKNSrfgkFH6hRANCAARuyynqfc/qJj5eKJ03oOH8X4Z8spDe
APO9WYckMM0ldPj+9kU607szFzPwjaPWzPdgyIWz3hcN8yAhCIhytmJa
"""
def get_wpa_supplicant_value(interface, key):
tmp = read_file(f'/run/wpa_supplicant/{interface}.conf')
tmp = re.findall(r'\n?{}=(.*)'.format(key), tmp)
return tmp[0]
def get_certificate_count(interface, cert_type):
tmp = read_file(f'/run/wpa_supplicant/{interface}_{cert_type}.pem')
return tmp.count(CERT_BEGIN)
class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
@classmethod
def setUpClass(cls):
cls._test_dhcp = True
cls._test_ip = True
cls._test_ipv6 = True
cls._test_ipv6_pd = True
cls._test_ipv6_dhcpc6 = True
cls._test_mtu = True
cls._test_vlan = True
cls._test_qinq = True
cls._base_path = ['interfaces', 'ethernet']
cls._mirror_interfaces = ['dum21354']
# We only test on physical interfaces and not VLAN (sub-)interfaces
if 'TEST_ETH' in os.environ:
tmp = os.environ['TEST_ETH'].split()
cls._interfaces = tmp
else:
for tmp in Section.interfaces('ethernet', vlan=False):
cls._interfaces.append(tmp)
cls._macs = {}
for interface in cls._interfaces:
cls._macs[interface] = read_file(f'/sys/class/net/{interface}/address')
# call base-classes classmethod
super(EthernetInterfaceTest, cls).setUpClass()
def tearDown(self):
for interface in self._interfaces:
# when using a dedicated interface to test via TEST_ETH environment
# variable only this one will be cleared in the end - usable to test
# ethernet interfaces via SSH
self.cli_delete(self._base_path + [interface])
self.cli_set(self._base_path + [interface, 'duplex', 'auto'])
self.cli_set(self._base_path + [interface, 'speed', 'auto'])
self.cli_set(self._base_path + [interface, 'hw-id', self._macs[interface]])
self.cli_commit()
# Verify that no address remains on the system as this is an eternal
# interface.
for intf in self._interfaces:
self.assertNotIn(AF_INET, ifaddresses(intf))
# required for IPv6 link-local address
self.assertIn(AF_INET6, ifaddresses(intf))
for addr in ifaddresses(intf)[AF_INET6]:
# checking link local addresses makes no sense
if is_ipv6_link_local(addr['addr']):
continue
self.assertFalse(is_intf_addr_assigned(intf, addr['addr']))
def test_offloading_rps(self):
# enable RPS on all available CPUs, RPS works woth a CPU bitmask,
# where each bit represents a CPU (core/thread). The formula below
# expands to rps_cpus = 255 for a 8 core system
rps_cpus = (1 << os.cpu_count()) -1
# XXX: we should probably reserve one core when the system is under
# high preasure so we can still have a core left for housekeeping.
# This is done by masking out the lowst bit so CPU0 is spared from
# receive packet steering.
rps_cpus &= ~1
for interface in self._interfaces:
self.cli_set(self._base_path + [interface, 'offload', 'rps'])
self.cli_commit()
for interface in self._interfaces:
cpus = read_file(f'/sys/class/net/{interface}/queues/rx-0/rps_cpus')
# remove the nasty ',' separation on larger strings
cpus = cpus.replace(',','')
cpus = int(cpus, 16)
self.assertEqual(f'{cpus:x}', f'{rps_cpus:x}')
def test_offloading_rfs(self):
global_rfs_flow = 32768
rfs_flow = global_rfs_flow
for interface in self._interfaces:
self.cli_set(self._base_path + [interface, 'offload', 'rfs'])
self.cli_commit()
for interface in self._interfaces:
queues = len(glob(f'/sys/class/net/{interface}/queues/rx-*'))
rfs_flow = int(global_rfs_flow/queues)
for i in range(0, queues):
tmp = read_file(f'/sys/class/net/{interface}/queues/rx-{i}/rps_flow_cnt')
self.assertEqual(int(tmp), rfs_flow)
tmp = read_file(f'/proc/sys/net/core/rps_sock_flow_entries')
self.assertEqual(int(tmp), global_rfs_flow)
# delete configuration of RFS and check all values returned to default "0"
for interface in self._interfaces:
self.cli_delete(self._base_path + [interface, 'offload', 'rfs'])
self.cli_commit()
for interface in self._interfaces:
queues = len(glob(f'/sys/class/net/{interface}/queues/rx-*'))
rfs_flow = int(global_rfs_flow/queues)
for i in range(0, queues):
tmp = read_file(f'/sys/class/net/{interface}/queues/rx-{i}/rps_flow_cnt')
self.assertEqual(int(tmp), 0)
def test_non_existing_interface(self):
unknonw_interface = self._base_path + ['eth667']
self.cli_set(unknonw_interface)
# check validate() - interface does not exist
with self.assertRaises(ConfigSessionError):
self.cli_commit()
# we need to remove this wrong interface from the configuration
# manually, else tearDown() will have problem in commit()
self.cli_delete(unknonw_interface)
def test_speed_duplex_verify(self):
for interface in self._interfaces:
self.cli_set(self._base_path + [interface, 'speed', '1000'])
# check validate() - if either speed or duplex is not auto, the
# other one must be manually configured, too
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(self._base_path + [interface, 'speed', 'auto'])
self.cli_commit()
def test_eapol_support(self):
ca_certs = {
'eapol-server-ca-root': server_ca_root_cert_data,
'eapol-server-ca-intermediate': server_ca_intermediate_cert_data,
'eapol-client-ca-root': client_ca_root_cert_data,
'eapol-client-ca-intermediate': client_ca_intermediate_cert_data,
}
cert_name = 'eapol-client'
for name, data in ca_certs.items():
self.cli_set(['pki', 'ca', name, 'certificate', data.replace('\n','')])
self.cli_set(['pki', 'certificate', cert_name, 'certificate', client_cert_data.replace('\n','')])
self.cli_set(['pki', 'certificate', cert_name, 'private', 'key', client_key_data.replace('\n','')])
for interface in self._interfaces:
# Enable EAPoL
self.cli_set(self._base_path + [interface, 'eapol', 'ca-certificate', 'eapol-server-ca-intermediate'])
self.cli_set(self._base_path + [interface, 'eapol', 'certificate', cert_name])
self.cli_commit()
# Check for running process
self.assertTrue(process_named_running('wpa_supplicant'))
# Validate interface config
for interface in self._interfaces:
tmp = get_wpa_supplicant_value(interface, 'key_mgmt')
self.assertEqual('IEEE8021X', tmp)
tmp = get_wpa_supplicant_value(interface, 'eap')
self.assertEqual('TLS', tmp)
tmp = get_wpa_supplicant_value(interface, 'eapol_flags')
self.assertEqual('0', tmp)
tmp = get_wpa_supplicant_value(interface, 'ca_cert')
self.assertEqual(f'"/run/wpa_supplicant/{interface}_ca.pem"', tmp)
tmp = get_wpa_supplicant_value(interface, 'client_cert')
self.assertEqual(f'"/run/wpa_supplicant/{interface}_cert.pem"', tmp)
tmp = get_wpa_supplicant_value(interface, 'private_key')
self.assertEqual(f'"/run/wpa_supplicant/{interface}_cert.key"', tmp)
mac = read_file(f'/sys/class/net/{interface}/address')
tmp = get_wpa_supplicant_value(interface, 'identity')
self.assertEqual(f'"{mac}"', tmp)
# Check certificate files have the full chain
self.assertEqual(get_certificate_count(interface, 'ca'), 2)
self.assertEqual(get_certificate_count(interface, 'cert'), 3)
for name in ca_certs:
self.cli_delete(['pki', 'ca', name])
self.cli_delete(['pki', 'certificate', cert_name])
if __name__ == '__main__':
unittest.main(verbosity=2)

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