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test_ikesacontroller.py
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test_ikesacontroller.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" This module defines test for protocol messages.
"""
__author__ = 'Alejandro Perez-Mendez <alejandro.perez.mendez@gmail.com>'
import logging
import socket
import time
import unittest
from ipaddress import ip_address, ip_network
from unittest import TestCase
from unittest.mock import patch
from configuration import Configuration
from message import TrafficSelector, Message, PayloadNOTIFY
from ikesacontroller import IkeSaController
from xfrm import XfrmUserAcquire, XfrmId, XfrmAddress, XfrmSelector, XfrmUserPolicyInfo, XfrmUserExpire, \
XfrmUserSaInfo, create_byte_array, XFRMA_TMPL, XfrmUserTmpl
logging.indent = 2
logging.basicConfig(level=logging.DEBUG,
format='[%(asctime)s.%(msecs)03d] [%(levelname)-7s] %(message)s',
datefmt='%Y-%m-%d %H:%M:%S')
class TestIkeSaController(TestCase):
@patch('xfrm.Xfrm.send_recv')
def setUp(self, mockclass):
self.ip1 = ip_address("192.168.0.1")
self.ip2 = ip_address("192.168.0.2")
self.confdict = {
"testconn_alice": {
"my_addr": str(self.ip1),
"peer_addr": str(self.ip2),
"my_auth": {"id": "alice@openikev2", "psk": "testing"},
"peer_auth": {"id": "alice@openikev2", "psk": "testing2"},
"dh": [14],
"integ": ["sha256"],
"prf": ["sha256"],
"protect": [{
"index": 1,
"ip_proto": "tcp",
"mode": "transport",
"lifetime": 5,
"peer_port": 0,
"ipsec_proto": "esp",
"encr": ["aes256", "aes128"],
}]
},
"testconn_bob": {
"my_addr": str(self.ip2),
"peer_addr": str(self.ip1),
"my_auth": {"id": "alice@openikev2", "psk": "testing2"},
"peer_auth": {"id": "alice@openikev2", "psk": "testing"},
"dh": [14],
"integ": ["sha256"],
"prf": ["sha256"],
"protect": [{
"index": 2,
"ip_proto": "tcp",
"mode": "transport",
"lifetime": 5,
"peer_port": 23,
"ipsec_proto": "esp",
"encr": ["aes256", "aes128"]
}]
}
}
self.configuration = Configuration([self.ip1, self.ip2], self.confdict)
self.ikesacontroller1 = IkeSaController(my_addrs=[self.ip1], configuration=self.configuration)
self.ikesacontroller2 = IkeSaController(my_addrs=[self.ip2], configuration=self.configuration)
@patch('xfrm.Xfrm.send_recv')
def test_initial_exchanges(self, mockclass):
# initial exchanges
acquire = XfrmUserAcquire(id=XfrmId(daddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.2"))),
saddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.1")),
sel=XfrmSelector(saddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.1")),
sport=8765,
daddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.2")),
dport=23,
proto=TrafficSelector.IpProtocol.TCP),
policy=XfrmUserPolicyInfo(index=1 << 3))
attributes = {XFRMA_TMPL: XfrmUserTmpl(family=socket.AF_INET)}
ike_sa_init_req, my_addr, peer_addr = self.ikesacontroller1.process_acquire(acquire, attributes)
ike_sa_init_res = self.ikesacontroller2.dispatch_message(ike_sa_init_req, self.ip2, self.ip1)
ike_auth_req = self.ikesacontroller1.dispatch_message(ike_sa_init_res, self.ip1, self.ip2)
ike_auth_res = self.ikesacontroller2.dispatch_message(ike_auth_req, self.ip2, self.ip1)
request = self.ikesacontroller1.dispatch_message(ike_auth_res, self.ip1, self.ip2)
self.assertEqual(len(self.ikesacontroller1.ike_sas), 1)
self.assertEqual(len(self.ikesacontroller1.ike_sas), 1)
self.assertIsNone(request)
@patch('xfrm.Xfrm.send_recv')
def test_expire(self, mockclass):
# initial exchanges
self.test_initial_exchanges()
expire = XfrmUserExpire(
state=XfrmUserSaInfo(
id=XfrmId(spi=create_byte_array(self.ikesacontroller1.ike_sas[0].child_sas[0].inbound_spi))),
hard=False)
rekey_child_sa_req, my_addr, peer_addr = self.ikesacontroller1.process_expire(expire)
self.assertIsNotNone(rekey_child_sa_req)
@patch('xfrm.Xfrm.send_recv')
def test_expire_invalid_spi(self, mockclass):
# initial exchanges
self.test_initial_exchanges()
expire = XfrmUserExpire(
state=XfrmUserSaInfo(
id=XfrmId(spi=create_byte_array(b'1234'))),
hard=False)
rekey_child_sa_req, my_addr, peer_addr = self.ikesacontroller1.process_expire(expire)
self.assertIsNone(rekey_child_sa_req)
@patch('xfrm.Xfrm.send_recv')
def test_invalid_spi(self, mockclass):
# initial exchanges
self.test_initial_exchanges()
expire = XfrmUserExpire(
state=XfrmUserSaInfo(
id=XfrmId(spi=create_byte_array(self.ikesacontroller1.ike_sas[0].child_sas[0].inbound_spi))),
hard=False)
rekey_child_sa_req, my_addr, peer_addr = self.ikesacontroller1.process_expire(expire)
message = Message.parse(rekey_child_sa_req, crypto=self.ikesacontroller1.ike_sas[0].my_crypto)
message.spi_r = b'12345678'
rekey_child_sa_req = message.to_bytes()
response = self.ikesacontroller2.dispatch_message(rekey_child_sa_req, self.ip2, self.ip1)
self.assertIsNone(response)
@patch('xfrm.Xfrm.send_recv')
def test_ike_sa_rekey(self, mockclass):
self.test_initial_exchanges()
self.ikesacontroller1.ike_sas[0].rekey_ike_sa_at = time.time()
rekey_req = self.ikesacontroller1.ike_sas[0].check_rekey_ike_sa_timer()
rekey_res = self.ikesacontroller2.dispatch_message(rekey_req, self.ip2, self.ip1)
delete_req = self.ikesacontroller1.dispatch_message(rekey_res, self.ip1, self.ip2)
self.assertEqual(len(self.ikesacontroller1.ike_sas), 2)
self.assertEqual(len(self.ikesacontroller2.ike_sas), 2)
delete_res = self.ikesacontroller2.dispatch_message(delete_req, self.ip2, self.ip1)
request = self.ikesacontroller1.dispatch_message(delete_res, self.ip1, self.ip2)
self.assertEqual(len(self.ikesacontroller1.ike_sas), 1)
self.assertEqual(len(self.ikesacontroller2.ike_sas), 1)
@patch('xfrm.Xfrm.send_recv')
def test_cookie(self, mockclass):
# initial exchanges
self.ikesacontroller2.cookie_threshold = 0
acquire = XfrmUserAcquire(id=XfrmId(daddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.2"))),
saddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.1")),
sel=XfrmSelector(saddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.1")),
sport=8765,
daddr=XfrmAddress.from_ipaddr(ip_address("192.168.0.2")),
dport=23,
proto=TrafficSelector.IpProtocol.TCP),
policy=XfrmUserPolicyInfo(index=1 << 3))
attributes = {XFRMA_TMPL: XfrmUserTmpl(family=socket.AF_INET)}
ike_sa_init_req, my_addr, peer_addr = self.ikesacontroller1.process_acquire(acquire, attributes)
ike_sa_init_res = self.ikesacontroller2.dispatch_message(ike_sa_init_req, self.ip2, self.ip1)
message = Message.parse(ike_sa_init_res)
self.assertTrue(message.get_notifies(PayloadNOTIFY.Type.COOKIE))
if __name__ == '__main__':
unittest.main()