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test_protocols_bfd.py
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test_protocols_bfd.py
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#!/usr/bin/env python3
#
# Copyright (C) 2021 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 unittest
from vyos.configsession import ConfigSession
from vyos.configsession import ConfigSessionError
from vyos.util import cmd
from vyos.util import process_named_running
PROCESS_NAME = 'bfdd'
base_path = ['protocols', 'bfd']
dum_if = 'dum1001'
neighbor_config = {
'192.0.2.10' : {
'intv_rx' : '500',
'intv_tx' : '600',
'multihop' : '',
'source_addr': '192.0.2.254',
},
'192.0.2.20' : {
'echo_mode' : '',
'intv_echo' : '100',
'intv_mult' : '111',
'intv_rx' : '222',
'intv_tx' : '333',
'shutdown' : '',
'source_intf': dum_if,
},
'2001:db8::a' : {
'source_addr': '2001:db8::1',
'source_intf': dum_if,
},
'2001:db8::b' : {
'source_addr': '2001:db8::1',
'multihop' : '',
},
}
def getFRRconfig():
return cmd('vtysh -c "show run" | sed -n "/^bfd/,/^!/p"')
def getBFDPeerconfig(peer):
return cmd(f'vtysh -c "show run" | sed -n "/^ {peer}/,/^!/p"')
class TestProtocolsBFD(unittest.TestCase):
def setUp(self):
self.session = ConfigSession(os.getpid())
self.session.set(['interfaces', 'dummy', dum_if, 'address', '192.0.2.1/24'])
self.session.set(['interfaces', 'dummy', dum_if, 'address', '2001:db8::1/64'])
def tearDown(self):
self.session.delete(['interfaces', 'dummy', dum_if])
self.session.delete(base_path)
self.session.commit()
del self.session
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
def test_bfd_simple(self):
for peer, peer_config in neighbor_config.items():
if 'echo_mode' in peer_config:
self.session.set(base_path + ['peer', peer, 'echo-mode'])
if 'intv_echo' in peer_config:
self.session.set(base_path + ['peer', peer, 'interval', 'echo-interval', peer_config["intv_echo"]])
if 'intv_mult' in peer_config:
self.session.set(base_path + ['peer', peer, 'interval', 'multiplier', peer_config["intv_mult"]])
if 'intv_rx' in peer_config:
self.session.set(base_path + ['peer', peer, 'interval', 'receive', peer_config["intv_rx"]])
if 'intv_tx' in peer_config:
self.session.set(base_path + ['peer', peer, 'interval', 'transmit', peer_config["intv_tx"]])
if 'multihop' in peer_config:
self.session.set(base_path + ['peer', peer, 'multihop'])
if 'shutdown' in peer_config:
self.session.set(base_path + ['peer', peer, 'shutdown'])
if 'source_addr' in peer_config:
self.session.set(base_path + ['peer', peer, 'source', 'address', peer_config["source_addr"]])
if 'source_intf' in peer_config:
self.session.set(base_path + ['peer', peer, 'source', 'interface', peer_config["source_intf"]])
# commit changes
self.session.commit()
# Verify FRR bgpd configuration
frrconfig = getFRRconfig()
for peer, peer_config in neighbor_config.items():
tmp = f'peer {peer}'
if 'multihop' in peer_config:
tmp += f' multihop'
if 'source_addr' in peer_config:
tmp += f' local-address {peer_config["source_addr"]}'
if 'source_intf' in peer_config:
tmp += f' interface {peer_config["source_intf"]}'
self.assertIn(tmp, frrconfig)
peerconfig = getBFDPeerconfig(tmp)
if 'echo_mode' in peer_config:
self.assertIn(f' echo-mode', peerconfig)
if 'intv_echo' in peer_config:
self.assertIn(f' echo-interval {peer_config["intv_echo"]}', peerconfig)
if 'intv_mult' in peer_config:
self.assertIn(f' detect-multiplier {peer_config["intv_mult"]}', peerconfig)
if 'intv_rx' in peer_config:
self.assertIn(f' receive-interval {peer_config["intv_rx"]}', peerconfig)
if 'intv_tx' in peer_config:
self.assertIn(f' transmit-interval {peer_config["intv_tx"]}', peerconfig)
if 'shutdown' not in peer_config:
self.assertIn(f' no shutdown', peerconfig)
if __name__ == '__main__':
unittest.main(verbosity=2)

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