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#!/usr/bin/env python3
#
# Copyright (C) 2021-2023 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 unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.firewall import find_nftables_rule
from vyos.utils.process import process_named_running
from vyos.utils.file import read_file
from vyos.utils.process import call
tunnel_path = ['interfaces', 'tunnel']
nhrp_path = ['protocols', 'nhrp']
vpn_path = ['vpn', 'ipsec']
class TestProtocolsNHRP(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestProtocolsNHRP, cls).setUpClass()
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, nhrp_path)
cls.cli_delete(cls, tunnel_path)
def tearDown(self):
self.cli_delete(nhrp_path)
self.cli_delete(tunnel_path)
self.cli_commit()
def test_config(self):
tunnel_if = "tun100"
tunnel_source = "192.0.2.1"
tunnel_encapsulation = "gre"
esp_group = "ESP-HUB"
ike_group = "IKE-HUB"
nhrp_secret = "vyos123"
nhrp_profile = "NHRPVPN"
ipsec_secret = "secret"
# Tunnel
self.cli_set(tunnel_path + [tunnel_if, "address", "172.16.253.134/29"])
self.cli_set(tunnel_path + [tunnel_if, "encapsulation", tunnel_encapsulation])
self.cli_set(tunnel_path + [tunnel_if, "source-address", tunnel_source])
self.cli_set(tunnel_path + [tunnel_if, "enable-multicast"])
self.cli_set(tunnel_path + [tunnel_if, "parameters", "ip", "key", "1"])
# NHRP
self.cli_set(nhrp_path + ["tunnel", tunnel_if, "cisco-authentication", nhrp_secret])
self.cli_set(nhrp_path + ["tunnel", tunnel_if, "holding-time", "300"])
self.cli_set(nhrp_path + ["tunnel", tunnel_if, "multicast", "dynamic"])
self.cli_set(nhrp_path + ["tunnel", tunnel_if, "redirect"])
self.cli_set(nhrp_path + ["tunnel", tunnel_if, "shortcut"])
# IKE/ESP Groups
self.cli_set(vpn_path + ["esp-group", esp_group, "lifetime", "1800"])
self.cli_set(vpn_path + ["esp-group", esp_group, "mode", "transport"])
self.cli_set(vpn_path + ["esp-group", esp_group, "pfs", "dh-group2"])
self.cli_set(vpn_path + ["esp-group", esp_group, "proposal", "1", "encryption", "aes256"])
self.cli_set(vpn_path + ["esp-group", esp_group, "proposal", "1", "hash", "sha1"])
self.cli_set(vpn_path + ["esp-group", esp_group, "proposal", "2", "encryption", "3des"])
self.cli_set(vpn_path + ["esp-group", esp_group, "proposal", "2", "hash", "md5"])
self.cli_set(vpn_path + ["ike-group", ike_group, "key-exchange", "ikev1"])
self.cli_set(vpn_path + ["ike-group", ike_group, "lifetime", "3600"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "1", "dh-group", "2"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "1", "encryption", "aes256"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "1", "hash", "sha1"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "2", "dh-group", "2"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "2", "encryption", "aes128"])
self.cli_set(vpn_path + ["ike-group", ike_group, "proposal", "2", "hash", "sha1"])
# Profile - Not doing full DMVPN checks here, just want to verify the profile name in the output
self.cli_set(vpn_path + ["interface", "eth0"])
self.cli_set(vpn_path + ["profile", nhrp_profile, "authentication", "mode", "pre-shared-secret"])
self.cli_set(vpn_path + ["profile", nhrp_profile, "authentication", "pre-shared-secret", ipsec_secret])
self.cli_set(vpn_path + ["profile", nhrp_profile, "bind", "tunnel", tunnel_if])
self.cli_set(vpn_path + ["profile", nhrp_profile, "esp-group", esp_group])
self.cli_set(vpn_path + ["profile", nhrp_profile, "ike-group", ike_group])
self.cli_commit()
opennhrp_lines = [
f'interface {tunnel_if} #hub {nhrp_profile}',
f'cisco-authentication {nhrp_secret}',
f'holding-time 300',
f'shortcut',
f'multicast dynamic',
f'redirect'
]
tmp_opennhrp_conf = read_file('/run/opennhrp/opennhrp.conf')
for line in opennhrp_lines:
self.assertIn(line, tmp_opennhrp_conf)
firewall_matches = [
f'ip protocol {tunnel_encapsulation}',
f'ip saddr {tunnel_source}',
f'ip daddr 224.0.0.0/4',
f'comment "VYOS_NHRP_{tunnel_if}"'
]
self.assertTrue(find_nftables_rule('ip vyos_nhrp_filter', 'VYOS_NHRP_OUTPUT', firewall_matches) is not None)
self.assertTrue(process_named_running('opennhrp'))
if __name__ == '__main__':
unittest.main(verbosity=2)
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