import unittest
from framework import VppTestCase, VppTestRunner
from template_ipsec import TemplateIpsec, IPsecIPv4Params
from vpp_papi import VppEnum
class IpsecApiTestCase(VppTestCase):
""" IPSec API tests """
@classmethod
def setUpClass(cls):
super(IpsecApiTestCase, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(IpsecApiTestCase, cls).tearDownClass()
def setUp(self):
super(IpsecApiTestCase, self).setUp()
self.create_pg_interfaces([0])
self.pg0.config_ip4()
self.pg0.admin_up()
self.vpp_esp_protocol = (VppEnum.vl_api_ipsec_proto_t.
IPSEC_API_PROTO_ESP)
self.vpp_ah_protocol = (VppEnum.vl_api_ipsec_proto_t.
IPSEC_API_PROTO_AH)
self.ipv4_params = IPsecIPv4Params()
def tearDown(self):
self.pg0.unconfig_ip4()
self.pg0.admin_down()
super(IpsecApiTestCase, self).tearDown()
def test_backend_dump(self):
""" backend dump """
d = self.vapi.ipsec_backend_dump()
self.assert_equal(len(d), 2, "number of ipsec backends in dump")
self.assert_equal(d[0].protocol, self.vpp_ah_protocol,
"ipsec protocol in dump entry")
self.assert_equal(d[0].index, 0, "index in dump entry")
self.assert_equal(d[0].active, 1, "active flag in dump entry")
self.assert_equal(d[1].protocol, self.vpp_esp_protocol,
"ipsec protocol in dump entry")
self.assert_equal(d[1].index, 0, "index in dump entry")
self.assert_equal(d[1].active, 1, "active flag in dump entry")
def test_select_valid_backend(self):
""" select valid backend """
self.vapi.ipsec_select_backend(self.vpp_ah_protocol, 0)
self.vapi.ipsec_select_backend(self.vpp_esp_protocol, 0)
def test_select_invalid_backend(self):
""" select invalid backend """
with self.vapi.assert_negative_api_retval():
self.vapi.ipsec_select_backend(self.vpp_ah_protocol, 200)
with self.vapi.assert_negative_api_retval():
self.vapi.ipsec_select_backend(self.vpp_esp_protocol, 200)
def test_select_backend_in_use(self):
""" attempt to change backend while sad configured """
params = self.ipv4_params
addr_type = params.addr_type
is_ipv6 = params.is_ipv6
scapy_tun_sa_id = params.scapy_tun_sa_id
scapy_tun_spi = params.scapy_tun_spi
auth_algo_vpp_id = params.auth_algo_vpp_id
auth_key = params.auth_key
crypt_algo_vpp_id = params.crypt_algo_vpp_id
crypt_key = params.crypt_key
self.vapi.ipsec_sad_entry_add_del(
is_add=1,
entry={
'sad_id': scapy_tun_sa_id,
'spi': scapy_tun_spi,
'integrity_algorithm': auth_algo_vpp_id,
'integrity_key': {
'data': auth_key,
'length': len(auth_key),
},
'crypto_algorithm': crypt_algo_vpp_id,
'crypto_key': {
'data': crypt_key,
'length': len(crypt_key),
},
'protocol': self.vpp_ah_protocol,
'tunnel_src': self.pg0.local_addr[addr_type],
'tunnel_dst': self.pg0.remote_addr[addr_type]
})
with self.vapi.assert_negative_api_retval():
self.vapi.ipsec_select_backend(
protocol=self.vpp_ah_protocol, index=0)
self.vapi.ipsec_sad_entry_add_del(
is_add=0,
entry={
'sad_id': scapy_tun_sa_id,
'spi': scapy_tun_spi,
'integrity_algorithm': auth_algo_vpp_id,
'integrity_key': {
'data': auth_key,
'length': len(auth_key),
},
'crypto_algorithm': crypt_algo_vpp_id,
'crypto_key': {
'data': crypt_key,
'length': len(crypt_key),
},
'protocol': self.vpp_ah_protocol,
'tunnel_src': self.pg0.local_addr[addr_type],
'tunnel_dst': self.pg0.remote_addr[addr_type]
})
self.vapi.ipsec_select_backend(
protocol=self.vpp_ah_protocol, index=0)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)