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test_interfaces_wireguard.py
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test_interfaces_wireguard.py
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#!/usr/bin/env python3
#
# Copyright (C) 2020-2023 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 os
import unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.utils.file import read_file
from vyos.utils.process import cmd
base_path = ['interfaces', 'wireguard']
class WireGuardInterfaceTest(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(WireGuardInterfaceTest, cls).setUpClass()
cls._test_addr = ['192.0.2.1/26', '192.0.2.255/31', '192.0.2.64/32',
'2001:db8:1::ffff/64', '2001:db8:101::1/112']
cls._interfaces = ['wg0', 'wg1']
def tearDown(self):
self.cli_delete(base_path)
self.cli_commit()
def test_01_wireguard_peer(self):
# Create WireGuard interfaces with associated peers
for intf in self._interfaces:
peer = 'foo-' + intf
privkey = '6ISOkASm6VhHOOSz/5iIxw+Q9adq9zA17iMM4X40dlc='
psk = 'u2xdA70hkz0S1CG0dZlOh0aq2orwFXRIVrKo4DCvHgM='
pubkey = 'n6ZZL7ph/QJUJSUUTyu19c77my1dRCDHkMzFQUO9Z3A='
for addr in self._test_addr:
self.cli_set(base_path + [intf, 'address', addr])
self.cli_set(base_path + [intf, 'private-key', privkey])
self.cli_set(base_path + [intf, 'peer', peer, 'address', '127.0.0.1'])
self.cli_set(base_path + [intf, 'peer', peer, 'port', '1337'])
# Allow different prefixes to traverse the tunnel
allowed_ips = ['10.0.0.0/8', '172.16.0.0/12', '192.168.0.0/16']
for ip in allowed_ips:
self.cli_set(base_path + [intf, 'peer', peer, 'allowed-ips', ip])
self.cli_set(base_path + [intf, 'peer', peer, 'preshared-key', psk])
self.cli_set(base_path + [intf, 'peer', peer, 'public-key', pubkey])
self.cli_commit()
self.assertTrue(os.path.isdir(f'/sys/class/net/{intf}'))
def test_02_wireguard_add_remove_peer(self):
# T2939: Create WireGuard interfaces with associated peers.
# Remove one of the configured peers.
# T4774: Test prevention of duplicate peer public keys
interface = 'wg0'
port = '12345'
privkey = '6ISOkASm6VhHOOSz/5iIxw+Q9adq9zA17iMM4X40dlc='
pubkey_1 = 'n1CUsmR0M2LUUsyicBd6blZICwUqqWWHbu4ifZ2/9gk='
pubkey_2 = 'ebFx/1G0ti8tvuZd94sEIosAZZIznX+dBAKG/8DFm0I='
self.cli_set(base_path + [interface, 'address', '172.16.0.1/24'])
self.cli_set(base_path + [interface, 'private-key', privkey])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'public-key', pubkey_1])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'port', port])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'allowed-ips', '10.205.212.10/32'])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'address', '192.0.2.1'])
self.cli_set(base_path + [interface, 'peer', 'PEER02', 'public-key', pubkey_1])
self.cli_set(base_path + [interface, 'peer', 'PEER02', 'port', port])
self.cli_set(base_path + [interface, 'peer', 'PEER02', 'allowed-ips', '10.205.212.11/32'])
self.cli_set(base_path + [interface, 'peer', 'PEER02', 'address', '192.0.2.2'])
# Duplicate pubkey_1
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + [interface, 'peer', 'PEER02', 'public-key', pubkey_2])
# Commit peers
self.cli_commit()
self.assertTrue(os.path.isdir(f'/sys/class/net/{interface}'))
# Delete second peer
self.cli_delete(base_path + [interface, 'peer', 'PEER01'])
self.cli_commit()
def test_03_wireguard_same_public_key(self):
# T5413: Test prevention of equality interface public key and peer's
# public key
interface = 'wg0'
port = '12345'
privkey = 'OOjcXGfgQlAuM6q8Z9aAYduCua7pxf7UKYvIqoUPoGQ='
pubkey_fail = 'eiVeYKq66mqKLbrZLzlckSP9voaw8jSFyVNiNTdZDjU='
pubkey_ok = 'ebFx/1G0ti8tvuZd94sEIosAZZIznX+dBAKG/8DFm0I='
self.cli_set(base_path + [interface, 'address', '172.16.0.1/24'])
self.cli_set(base_path + [interface, 'private-key', privkey])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'public-key', pubkey_fail])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'port', port])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'allowed-ips', '10.205.212.10/32'])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'address', '192.0.2.1'])
# The same pubkey as the interface wg0
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'public-key', pubkey_ok])
# Commit peers
self.cli_commit()
self.assertTrue(os.path.isdir(f'/sys/class/net/{interface}'))
def test_04_wireguard_threaded(self):
# T5409: Test adding threaded option on interface.
# Test prevention for adding threaded
# if no enabled peer is configured.
interface = 'wg0'
port = '12345'
privkey = 'OOjcXGfgQlAuM6q8Z9aAYduCua7pxf7UKYvIqoUPoGQ='
pubkey = 'ebFx/1G0ti8tvuZd94sEIosAZZIznX+dBAKG/8DFm0I='
self.cli_set(base_path + [interface, 'address', '172.16.0.1/24'])
self.cli_set(base_path + [interface, 'private-key', privkey])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'port', port])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'public-key', pubkey])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'allowed-ips', '10.205.212.10/32'])
self.cli_set(base_path + [interface, 'peer', 'PEER01', 'address', '192.0.2.1'])
self.cli_set(base_path + [interface, 'per-client-thread'])
# Commit peers
self.cli_commit()
tmp = read_file(f'/sys/class/net/{interface}/threaded')
self.assertTrue(tmp, "1")
def test_05_wireguard_peer_pubkey_change(self):
# T5707 changing WireGuard CLI public key of a peer - it's not removed
def get_peers(interface) -> list:
tmp = cmd(f'sudo wg show {interface} dump')
first_line = True
peers = []
for line in tmp.split('\n'):
if not line:
continue # Skip empty lines and last line
items = line.split('\t')
if first_line:
self.assertEqual(privkey, items[0])
first_line = False
else:
peers.append(items[0])
return peers
interface = 'wg1337'
port = '1337'
privkey = 'iJi4lb2HhkLx2KSAGOjji2alKkYsJjSPkHkrcpxgEVU='
pubkey_1 = 'srQ8VF6z/LDjKCzpxBzFpmaNUOeuHYzIfc2dcmoc/h4='
pubkey_2 = '8pbMHiQ7NECVP7F65Mb2W8+4ldGG2oaGvDSpSEsOBn8='
self.cli_set(base_path + [interface, 'address', '172.16.0.1/24'])
self.cli_set(base_path + [interface, 'port', port])
self.cli_set(base_path + [interface, 'private-key', privkey])
self.cli_set(base_path + [interface, 'peer', 'VyOS', 'public-key', pubkey_1])
self.cli_set(base_path + [interface, 'peer', 'VyOS', 'allowed-ips', '10.205.212.10/32'])
self.cli_commit()
peers = get_peers(interface)
self.assertIn(pubkey_1, peers)
self.assertNotIn(pubkey_2, peers)
# Now change the public key of our peer
self.cli_set(base_path + [interface, 'peer', 'VyOS', 'public-key', pubkey_2])
self.cli_commit()
# Verify config
peers = get_peers(interface)
self.assertNotIn(pubkey_1, peers)
self.assertIn(pubkey_2, peers)
if __name__ == '__main__':
unittest.main(verbosity=2)

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