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#!/usr/bin/env python3
#
# Copyright (C) 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 json
import unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.util import cmd
base_path = ['protocols', 'static', 'arp']
interface = 'eth0'
address = '192.0.2.1/24'
class TestARP(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestARP, cls).setUpClass()
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, base_path)
# we need a L2 interface with a L3 address to properly configure ARP entries
cls.cli_set(cls, ['interfaces', 'ethernet', interface, 'address', address])
@classmethod
def tearDownClass(cls):
# cleanuop L2 interface
cls.cli_delete(cls, ['interfaces', 'ethernet', interface, 'address', address])
cls.cli_commit(cls)
super(TestARP, cls).tearDownClass()
def tearDown(self):
# delete test config
self.cli_delete(base_path)
self.cli_commit()
def test_static_arp(self):
test_data = {
'192.0.2.10' : { 'mac' : '00:01:02:03:04:0a' },
'192.0.2.11' : { 'mac' : '00:01:02:03:04:0b' },
'192.0.2.12' : { 'mac' : '00:01:02:03:04:0c' },
'192.0.2.13' : { 'mac' : '00:01:02:03:04:0d' },
'192.0.2.14' : { 'mac' : '00:01:02:03:04:0e' },
'192.0.2.15' : { 'mac' : '00:01:02:03:04:0f' },
}
for host, host_config in test_data.items():
self.cli_set(base_path + ['interface', interface, 'address', host, 'mac', host_config['mac']])
self.cli_commit()
arp_table = json.loads(cmd('ip -j -4 neigh show'))
for host, host_config in test_data.items():
# As we search within a list of hosts we need to mark if it was
# found or not. This ensures all hosts from test_data are processed
found = False
for entry in arp_table:
# Other ARP entry - not related to this testcase
if entry['dst'] not in list(test_data):
continue
if entry['dst'] == host:
self.assertEqual(entry['lladdr'], host_config['mac'])
self.assertEqual(entry['dev'], interface)
found = True
if found == False:
print(entry)
self.assertTrue(found)
if __name__ == '__main__':
unittest.main(verbosity=2)
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