text: import unittest
  import socket
  import copy
  
  from scapy.layers.ipsec import SecurityAssociation, ESP
  from scapy.layers.l2 import Ether, GRE, Dot1Q
  from scapy.packet import Raw
  from scapy.layers.inet import IP, UDP
  from scapy.layers.inet6 import IPv6
  from framework import VppTestRunner
  from template_ipsec import TemplateIpsec, IpsecTun4Tests, IpsecTun6Tests, \
      IpsecTun4, IpsecTun6,  IpsecTcpTests, mk_scapy_crypt_key, \
      IpsecTun6HandoffTests, IpsecTun4HandoffTests, config_tun_params
  from vpp_ipsec_tun_interface import VppIpsecTunInterface
  from vpp_gre_interface import VppGreInterface
  from vpp_ipip_tun_interface import VppIpIpTunInterface
  from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto
  from vpp_ipsec import VppIpsecSA, VppIpsecTunProtect
  from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort
  from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint
  from util import ppp
  from vpp_papi import VppEnum
  
  
  def config_tun_params(p, encryption_type, tun_if):
      ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
      esn_en = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
                               IPSEC_API_SAD_FLAG_USE_ESN))
      crypt_key = mk_scapy_crypt_key(p)
      p.tun_dst = tun_if.remote_ip
      p.tun_src = tun_if.local_ip
      p.scapy_tun_sa = SecurityAssociation(
          encryption_type, spi=p.vpp_tun_spi,
          crypt_algo=p.crypt_algo,
          crypt_key=crypt_key,
          auth_algo=p.auth_algo, auth_key=p.auth_key,
          tunnel_header=ip_class_by_addr_type[p.addr_type](
              src=p.tun_dst,
              dst=p.tun_src),
          nat_t_header=p.nat_header,
          esn_en=esn_en)
      p.vpp_tun_sa = SecurityAssociation(
          encryption_type, spi=p.scapy_tun_spi,
          crypt_algo=p.crypt_algo,
          crypt_key=crypt_key,
          auth_algo=p.auth_algo, auth_key=p.auth_key,
          tunnel_header=ip_class_by_addr_type[p.addr_type](
              dst=p.tun_dst,
              src=p.tun_src),
          nat_t_header=p.nat_header,
          esn_en=esn_en)
  
  
  def config_tra_params(p, encryption_type, tun_if):
      ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
      esn_en = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
                               IPSEC_API_SAD_FLAG_USE_ESN))
      crypt_key = mk_scapy_crypt_key(p)
      p.tun_dst = tun_if.remote_ip
      p.tun_src = tun_if.local_ip
      p.scapy_tun_sa = SecurityAssociation(
          encryption_type, spi=p.vpp_tun_spi,
          crypt_algo=p.crypt_algo,
          crypt_key=crypt_key,
          auth_algo=p.auth_algo, auth_key=p.auth_key,
          esn_en=esn_en)
      p.vpp_tun_sa = SecurityAssociation(
          encryption_type, spi=p.scapy_tun_spi,
          crypt_algo=p.crypt_algo,
          crypt_key=crypt_key,
          auth_algo=p.auth_algo, auth_key=p.auth_key,
          esn_en=esn_en)
  
  
  class TemplateIpsec4TunIfEsp(TemplateIpsec):
      """ IPsec tunnel interface tests """
  
      encryption_type = ESP
  
      @classmethod
      def setUpClass(cls):
          super(TemplateIpsec4TunIfEsp, cls).setUpClass()
  
      @classmethod
      def tearDownClass(cls):
          super(TemplateIpsec4TunIfEsp, cls).tearDownClass()
  
      def setUp(self):
          super(TemplateIpsec4TunIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                          p.scapy_tun_spi, p.crypt_algo_vpp_id,
                                          p.crypt_key, p.crypt_key,
                                          p.auth_algo_vpp_id, p.auth_key,
                                          p.auth_key)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          p.tun_if.config_ip6()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          r = VppIpRoute(self, p.remote_tun_if_host, 32,
                         [VppRoutePath(p.tun_if.remote_ip4,
                                       0xffffffff)])
          r.add_vpp_config()
          r = VppIpRoute(self, p.remote_tun_if_host6, 128,
                         [VppRoutePath(p.tun_if.remote_ip6,
                                       0xffffffff,
                                       proto=DpoProto.DPO_PROTO_IP6)])
          r.add_vpp_config()
  
      def tearDown(self):
          super(TemplateIpsec4TunIfEsp, self).tearDown()
  
  
  class TemplateIpsec4TunIfEspUdp(TemplateIpsec):
      """ IPsec UDP tunnel interface tests """
  
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
  
      @classmethod
      def setUpClass(cls):
          super(TemplateIpsec4TunIfEspUdp, cls).setUpClass()
  
      @classmethod
      def tearDownClass(cls):
          super(TemplateIpsec4TunIfEspUdp, cls).tearDownClass()
  
      def setUp(self):
          super(TemplateIpsec4TunIfEspUdp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
          p.flags = (VppEnum.vl_api_ipsec_sad_flags_t.
                     IPSEC_API_SAD_FLAG_UDP_ENCAP)
          p.nat_header = UDP(sport=5454, dport=4500)
  
          p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                          p.scapy_tun_spi, p.crypt_algo_vpp_id,
                                          p.crypt_key, p.crypt_key,
                                          p.auth_algo_vpp_id, p.auth_key,
                                          p.auth_key, udp_encap=True)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          p.tun_if.config_ip6()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          r = VppIpRoute(self, p.remote_tun_if_host, 32,
                         [VppRoutePath(p.tun_if.remote_ip4,
                                       0xffffffff)])
          r.add_vpp_config()
          r = VppIpRoute(self, p.remote_tun_if_host6, 128,
                         [VppRoutePath(p.tun_if.remote_ip6,
                                       0xffffffff,
                                       proto=DpoProto.DPO_PROTO_IP6)])
          r.add_vpp_config()
  
      def tearDown(self):
          super(TemplateIpsec4TunIfEspUdp, self).tearDown()
  
  
  class TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests):
      """ Ipsec ESP - TUN tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def test_tun_basic64(self):
          """ ipsec 6o4 tunnel basic test """
          self.tun4_encrypt_node_name = "esp4-encrypt-tun"
  
          self.verify_tun_64(self.params[socket.AF_INET], count=1)
  
      def test_tun_burst64(self):
          """ ipsec 6o4 tunnel basic test """
          self.tun4_encrypt_node_name = "esp4-encrypt-tun"
  
          self.verify_tun_64(self.params[socket.AF_INET], count=257)
  
      def test_tun_basic_frag44(self):
          """ ipsec 4o4 tunnel frag basic test """
          self.tun4_encrypt_node_name = "esp4-encrypt-tun"
  
          p = self.ipv4_params
  
          self.vapi.sw_interface_set_mtu(p.tun_if.sw_if_index,
                                         [1500, 0, 0, 0])
          self.verify_tun_44(self.params[socket.AF_INET],
                             count=1, payload_size=1800, n_rx=2)
          self.vapi.sw_interface_set_mtu(p.tun_if.sw_if_index,
                                         [9000, 0, 0, 0])
  
  
  class TestIpsec4TunIfEspUdp(TemplateIpsec4TunIfEspUdp, IpsecTun4Tests):
      """ Ipsec ESP UDP tests """
  
      tun4_input_node = "ipsec4-tun-input"
  
      def test_keepalive(self):
          """ IPSEC NAT Keepalive """
          self.verify_keepalive(self.ipv4_params)
  
  
  class TestIpsec4TunIfEsp2(TemplateIpsec4TunIfEsp, IpsecTcpTests):
      """ Ipsec ESP - TCP tests """
      pass
  
  
  class TemplateIpsec6TunIfEsp(TemplateIpsec):
      """ IPsec tunnel interface tests """
  
      encryption_type = ESP
  
      def setUp(self):
          super(TemplateIpsec6TunIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv6_params
          p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                          p.scapy_tun_spi, p.crypt_algo_vpp_id,
                                          p.crypt_key, p.crypt_key,
                                          p.auth_algo_vpp_id, p.auth_key,
                                          p.auth_key, is_ip6=True)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip6()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          r = VppIpRoute(self, p.remote_tun_if_host, 128,
                         [VppRoutePath(p.tun_if.remote_ip6,
                                       0xffffffff,
                                       proto=DpoProto.DPO_PROTO_IP6)])
          r.add_vpp_config()
          r = VppIpRoute(self, p.remote_tun_if_host4, 32,
                         [VppRoutePath(p.tun_if.remote_ip4,
                                       0xffffffff)])
          r.add_vpp_config()
  
      def tearDown(self):
          super(TemplateIpsec6TunIfEsp, self).tearDown()
  
  
  class TestIpsec6TunIfEsp1(TemplateIpsec6TunIfEsp,
                            IpsecTun6Tests):
      """ Ipsec ESP - TUN tests """
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
      def test_tun_basic46(self):
          """ ipsec 4o6 tunnel basic test """
          self.tun6_encrypt_node_name = "esp6-encrypt-tun"
          self.verify_tun_46(self.params[socket.AF_INET6], count=1)
  
      def test_tun_burst46(self):
          """ ipsec 4o6 tunnel burst test """
          self.tun6_encrypt_node_name = "esp6-encrypt-tun"
          self.verify_tun_46(self.params[socket.AF_INET6], count=257)
  
  
  class TestIpsec6TunIfEspHandoff(TemplateIpsec6TunIfEsp,
                                  IpsecTun6HandoffTests):
      """ Ipsec ESP 6 Handoff tests """
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
  
  class TestIpsec4TunIfEspHandoff(TemplateIpsec4TunIfEsp,
                                  IpsecTun4HandoffTests):
      """ Ipsec ESP 4 Handoff tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
  
  class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4):
      """ IPsec IPv4 Multi Tunnel interface """
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec4MultiTunIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          self.multi_params = []
          self.pg0.generate_remote_hosts(10)
          self.pg0.configure_ipv4_neighbors()
  
          for ii in range(10):
              p = copy.copy(self.ipv4_params)
  
              p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
              p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
              p.scapy_tun_spi = p.scapy_tun_spi + ii
              p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
              p.vpp_tun_spi = p.vpp_tun_spi + ii
  
              p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
              p.scapy_tra_spi = p.scapy_tra_spi + ii
              p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
              p.vpp_tra_spi = p.vpp_tra_spi + ii
              p.tun_dst = self.pg0.remote_hosts[ii].ip4
  
              p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                              p.scapy_tun_spi,
                                              p.crypt_algo_vpp_id,
                                              p.crypt_key, p.crypt_key,
                                              p.auth_algo_vpp_id, p.auth_key,
                                              p.auth_key,
                                              dst=p.tun_dst)
              p.tun_if.add_vpp_config()
              p.tun_if.admin_up()
              p.tun_if.config_ip4()
              config_tun_params(p, self.encryption_type, p.tun_if)
              self.multi_params.append(p)
  
              VppIpRoute(self, p.remote_tun_if_host, 32,
                         [VppRoutePath(p.tun_if.remote_ip4,
                                       0xffffffff)]).add_vpp_config()
  
      def tearDown(self):
          super(TestIpsec4MultiTunIfEsp, self).tearDown()
  
      def test_tun_44(self):
          """Multiple IPSEC tunnel interfaces """
          for p in self.multi_params:
              self.verify_tun_44(p, count=127)
              c = p.tun_if.get_rx_stats()
              self.assertEqual(c['packets'], 127)
              c = p.tun_if.get_tx_stats()
              self.assertEqual(c['packets'], 127)
  
      def test_tun_rr_44(self):
          """ Round-robin packets acrros multiple interface """
          tx = []
          for p in self.multi_params:
              tx = tx + self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
                                              src=p.remote_tun_if_host,
                                              dst=self.pg1.remote_ip4)
          rxs = self.send_and_expect(self.tun_if, tx, self.pg1)
  
          for rx, p in zip(rxs, self.multi_params):
              self.verify_decrypted(p, [rx])
  
          tx = []
          for p in self.multi_params:
              tx = tx + self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
                                      dst=p.remote_tun_if_host)
          rxs = self.send_and_expect(self.pg1, tx, self.tun_if)
  
          for rx, p in zip(rxs, self.multi_params):
              self.verify_encrypted(p, p.vpp_tun_sa, [rx])
  
  
  class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4):
      """ IPsec IPv4 Tunnel interface all Algos """
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def config_network(self, p):
  
          p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                          p.scapy_tun_spi,
                                          p.crypt_algo_vpp_id,
                                          p.crypt_key, p.crypt_key,
                                          p.auth_algo_vpp_id, p.auth_key,
                                          p.auth_key,
                                          salt=p.salt)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
          self.logger.info(self.vapi.cli("sh ipsec sa 0"))
          self.logger.info(self.vapi.cli("sh ipsec sa 1"))
  
          p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
                               [VppRoutePath(p.tun_if.remote_ip4,
                                             0xffffffff)])
          p.route.add_vpp_config()
  
      def unconfig_network(self, p):
          p.tun_if.unconfig_ip4()
          p.tun_if.remove_vpp_config()
          p.route.remove_vpp_config()
  
      def setUp(self):
          super(TestIpsec4TunIfEspAll, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec4TunIfEspAll, self).tearDown()
  
      def rekey(self, p):
          #
          # change the key and the SPI
          #
          p.crypt_key = b'X' + p.crypt_key[1:]
          p.scapy_tun_spi += 1
          p.scapy_tun_sa_id += 1
          p.vpp_tun_spi += 1
          p.vpp_tun_sa_id += 1
          p.tun_if.local_spi = p.vpp_tun_spi
          p.tun_if.remote_spi = p.scapy_tun_spi
  
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          p.tun_sa_in = VppIpsecSA(self,
                                   p.scapy_tun_sa_id,
                                   p.scapy_tun_spi,
                                   p.auth_algo_vpp_id,
                                   p.auth_key,
                                   p.crypt_algo_vpp_id,
                                   p.crypt_key,
                                   self.vpp_esp_protocol,
                                   flags=p.flags,
                                   salt=p.salt)
          p.tun_sa_out = VppIpsecSA(self,
                                    p.vpp_tun_sa_id,
                                    p.vpp_tun_spi,
                                    p.auth_algo_vpp_id,
                                    p.auth_key,
                                    p.crypt_algo_vpp_id,
                                    p.crypt_key,
                                    self.vpp_esp_protocol,
                                    flags=p.flags,
                                    salt=p.salt)
          p.tun_sa_in.add_vpp_config()
          p.tun_sa_out.add_vpp_config()
  
          self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
                                           sa_id=p.tun_sa_in.id,
                                           is_outbound=1)
          self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
                                           sa_id=p.tun_sa_out.id,
                                           is_outbound=0)
          self.logger.info(self.vapi.cli("sh ipsec sa"))
  
      def test_tun_44(self):
          """IPSEC tunnel all algos """
  
          # foreach VPP crypto engine
          engines = ["ia32", "ipsecmb", "openssl"]
  
          # foreach crypto algorithm
          algos = [{'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_GCM_128),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_NONE),
                    'scapy-crypto': "AES-GCM",
                    'scapy-integ': "NULL",
                    'key': b"JPjyOWBeVEQiMe7h",
                    'salt': 3333},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_GCM_192),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_NONE),
                    'scapy-crypto': "AES-GCM",
                    'scapy-integ': "NULL",
                    'key': b"JPjyOWBeVEQiMe7hJPjyOWBe",
                    'salt': 0},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_GCM_256),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_NONE),
                    'scapy-crypto': "AES-GCM",
                    'scapy-integ': "NULL",
                    'key': b"JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h",
                    'salt': 9999},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_CBC_128),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_SHA1_96),
                    'scapy-crypto': "AES-CBC",
                    'scapy-integ': "HMAC-SHA1-96",
                    'salt': 0,
                    'key': b"JPjyOWBeVEQiMe7h"},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_CBC_192),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_SHA1_96),
                    'scapy-crypto': "AES-CBC",
                    'scapy-integ': "HMAC-SHA1-96",
                    'salt': 0,
                    'key': b"JPjyOWBeVEQiMe7hJPjyOWBe"},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_AES_CBC_256),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_SHA1_96),
                    'scapy-crypto': "AES-CBC",
                    'scapy-integ': "HMAC-SHA1-96",
                    'salt': 0,
                    'key': b"JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h"},
                   {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t.
                                   IPSEC_API_CRYPTO_ALG_NONE),
                    'vpp-integ': (VppEnum.vl_api_ipsec_integ_alg_t.
                                  IPSEC_API_INTEG_ALG_SHA1_96),
                    'scapy-crypto': "NULL",
                    'scapy-integ': "HMAC-SHA1-96",
                    'salt': 0,
                    'key': b"JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h"}]
  
          for engine in engines:
              self.vapi.cli("set crypto handler all %s" % engine)
  
              #
              # loop through each of the algorithms
              #
              for algo in algos:
                  # with self.subTest(algo=algo['scapy']):
  
                  p = copy.copy(self.ipv4_params)
                  p.auth_algo_vpp_id = algo['vpp-integ']
                  p.crypt_algo_vpp_id = algo['vpp-crypto']
                  p.crypt_algo = algo['scapy-crypto']
                  p.auth_algo = algo['scapy-integ']
                  p.crypt_key = algo['key']
                  p.salt = algo['salt']
  
                  self.config_network(p)
  
                  self.verify_tun_44(p, count=127)
                  c = p.tun_if.get_rx_stats()
                  self.assertEqual(c['packets'], 127)
                  c = p.tun_if.get_tx_stats()
                  self.assertEqual(c['packets'], 127)
  
                  #
                  # rekey the tunnel
                  #
                  self.rekey(p)
                  self.verify_tun_44(p, count=127)
  
                  self.unconfig_network(p)
                  p.tun_sa_out.remove_vpp_config()
                  p.tun_sa_in.remove_vpp_config()
  
  
  class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4):
      """ IPsec IPv4 Tunnel interface all Algos """
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def config_network(self, p):
  
          p.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
                                IPSEC_API_INTEG_ALG_NONE)
          p.auth_algo = 'NULL'
          p.auth_key = []
  
          p.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
                                 IPSEC_API_CRYPTO_ALG_NONE)
          p.crypt_algo = 'NULL'
          p.crypt_key = []
  
          p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                          p.scapy_tun_spi,
                                          p.crypt_algo_vpp_id,
                                          p.crypt_key, p.crypt_key,
                                          p.auth_algo_vpp_id, p.auth_key,
                                          p.auth_key,
                                          salt=p.salt)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
          self.logger.info(self.vapi.cli("sh ipsec sa 0"))
          self.logger.info(self.vapi.cli("sh ipsec sa 1"))
  
          p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
                               [VppRoutePath(p.tun_if.remote_ip4,
                                             0xffffffff)])
          p.route.add_vpp_config()
  
      def unconfig_network(self, p):
          p.tun_if.unconfig_ip4()
          p.tun_if.remove_vpp_config()
          p.route.remove_vpp_config()
  
      def setUp(self):
          super(TestIpsec4TunIfEspNoAlgo, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec4TunIfEspNoAlgo, self).tearDown()
  
      def test_tun_44(self):
          p = self.ipv4_params
  
          self.config_network(p)
  
          tx = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
                             dst=p.remote_tun_if_host)
          self.send_and_assert_no_replies(self.pg1, tx)
  
          self.unconfig_network(p)
  
  
  class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6):
      """ IPsec IPv6 Multi Tunnel interface """
  
      encryption_type = ESP
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec6MultiTunIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          self.multi_params = []
          self.pg0.generate_remote_hosts(10)
          self.pg0.configure_ipv6_neighbors()
  
          for ii in range(10):
              p = copy.copy(self.ipv6_params)
  
              p.remote_tun_if_host = "1111::%d" % (ii + 1)
              p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
              p.scapy_tun_spi = p.scapy_tun_spi + ii
              p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
              p.vpp_tun_spi = p.vpp_tun_spi + ii
  
              p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
              p.scapy_tra_spi = p.scapy_tra_spi + ii
              p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
              p.vpp_tra_spi = p.vpp_tra_spi + ii
  
              p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                              p.scapy_tun_spi,
                                              p.crypt_algo_vpp_id,
                                              p.crypt_key, p.crypt_key,
                                              p.auth_algo_vpp_id, p.auth_key,
                                              p.auth_key, is_ip6=True,
                                              dst=self.pg0.remote_hosts[ii].ip6)
              p.tun_if.add_vpp_config()
              p.tun_if.admin_up()
              p.tun_if.config_ip6()
              config_tun_params(p, self.encryption_type, p.tun_if)
              self.multi_params.append(p)
  
              r = VppIpRoute(self, p.remote_tun_if_host, 128,
                             [VppRoutePath(p.tun_if.remote_ip6,
                                           0xffffffff,
                                           proto=DpoProto.DPO_PROTO_IP6)])
              r.add_vpp_config()
  
      def tearDown(self):
          super(TestIpsec6MultiTunIfEsp, self).tearDown()
  
      def test_tun_66(self):
          """Multiple IPSEC tunnel interfaces """
          for p in self.multi_params:
              self.verify_tun_66(p, count=127)
              c = p.tun_if.get_rx_stats()
              self.assertEqual(c['packets'], 127)
              c = p.tun_if.get_tx_stats()
              self.assertEqual(c['packets'], 127)
  
  
  class TestIpsecGreTebIfEsp(TemplateIpsec,
                             IpsecTun4Tests):
      """ Ipsec GRE TEB ESP - TUN tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
      omac = "00:11:22:33:44:55"
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             Ether(dst=self.omac) /
                             IP(src="1.1.1.1", dst="1.1.1.2") /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(dst=self.omac) /
                  IP(src="1.1.1.1", dst="1.1.1.2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.omac)
              self.assert_equal(rx[IP].dst, "1.1.1.2")
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                  self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[Ether]
                  self.assertEqual(e[Ether].dst, self.omac)
                  self.assertEqual(e[IP].dst, "1.1.1.2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGreTebIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    self.pg0.local_ip4,
                                    self.pg0.remote_ip4)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   self.pg0.remote_ip4,
                                   self.pg0.local_ip4)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip4,
                                     self.pg0.remote_ip4,
                                     type=(VppEnum.vl_api_gre_tunnel_type_t.
                                           GRE_API_TUNNEL_TYPE_TEB))
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
  
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          VppBridgeDomainPort(self, bd1, p.tun_if).add_vpp_config()
          VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config()
  
          self.vapi.cli("clear ipsec sa")
  
      def tearDown(self):
          p = self.ipv4_params
          p.tun_if.unconfig_ip4()
          super(TestIpsecGreTebIfEsp, self).tearDown()
  
  
  class TestIpsecGreTebVlanIfEsp(TemplateIpsec,
                                 IpsecTun4Tests):
      """ Ipsec GRE TEB ESP - TUN tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
      omac = "00:11:22:33:44:55"
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             Ether(dst=self.omac) /
                             IP(src="1.1.1.1", dst="1.1.1.2") /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(dst=self.omac) /
                  Dot1Q(vlan=11) /
                  IP(src="1.1.1.1", dst="1.1.1.2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.omac)
              self.assert_equal(rx[Dot1Q].vlan, 11)
              self.assert_equal(rx[IP].dst, "1.1.1.2")
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                  self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[Ether]
                  self.assertEqual(e[Ether].dst, self.omac)
                  self.assertFalse(e.haslayer(Dot1Q))
                  self.assertEqual(e[IP].dst, "1.1.1.2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGreTebVlanIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          self.pg1_11 = VppDot1QSubint(self, self.pg1, 11)
          self.vapi.l2_interface_vlan_tag_rewrite(
              sw_if_index=self.pg1_11.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1,
              push_dot1q=11)
          self.pg1_11.admin_up()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    self.pg0.local_ip4,
                                    self.pg0.remote_ip4)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   self.pg0.remote_ip4,
                                   self.pg0.local_ip4)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip4,
                                     self.pg0.remote_ip4,
                                     type=(VppEnum.vl_api_gre_tunnel_type_t.
                                           GRE_API_TUNNEL_TYPE_TEB))
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
  
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          VppBridgeDomainPort(self, bd1, p.tun_if).add_vpp_config()
          VppBridgeDomainPort(self, bd1, self.pg1_11).add_vpp_config()
  
          self.vapi.cli("clear ipsec sa")
  
      def tearDown(self):
          p = self.ipv4_params
          p.tun_if.unconfig_ip4()
          super(TestIpsecGreTebVlanIfEsp, self).tearDown()
          self.pg1_11.admin_down()
          self.pg1_11.remove_vpp_config()
  
  
  class TestIpsecGreTebIfEspTra(TemplateIpsec,
                                IpsecTun4Tests):
      """ Ipsec GRE TEB ESP - Tra tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
      omac = "00:11:22:33:44:55"
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             Ether(dst=self.omac) /
                             IP(src="1.1.1.1", dst="1.1.1.2") /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(dst=self.omac) /
                  IP(src="1.1.1.1", dst="1.1.1.2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.omac)
              self.assert_equal(rx[IP].dst, "1.1.1.2")
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                  self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[Ether]
                  self.assertEqual(e[Ether].dst, self.omac)
                  self.assertEqual(e[IP].dst, "1.1.1.2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGreTebIfEspTra, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip4,
                                     self.pg0.remote_ip4,
                                     type=(VppEnum.vl_api_gre_tunnel_type_t.
                                           GRE_API_TUNNEL_TYPE_TEB))
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
  
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tra_params(p, self.encryption_type, p.tun_if)
  
          VppBridgeDomainPort(self, bd1, p.tun_if).add_vpp_config()
          VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config()
  
          self.vapi.cli("clear ipsec sa")
  
      def tearDown(self):
          p = self.ipv4_params
          p.tun_if.unconfig_ip4()
          super(TestIpsecGreTebIfEspTra, self).tearDown()
  
  
  class TestIpsecGreIfEsp(TemplateIpsec,
                          IpsecTun4Tests):
      """ Ipsec GRE ESP - TUN tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             IP(src=self.pg1.local_ip4,
                                dst=self.pg1.remote_ip4) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  IP(src="1.1.1.1", dst="1.1.1.2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.pg1.remote_mac)
              self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                  self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[GRE]
                  self.assertEqual(e[IP].dst, "1.1.1.2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGreIfEsp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    self.pg0.local_ip4,
                                    self.pg0.remote_ip4)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   self.pg0.remote_ip4,
                                   self.pg0.local_ip4)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip4,
                                     self.pg0.remote_ip4)
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          VppIpRoute(self, "1.1.1.2", 32,
                     [VppRoutePath(p.tun_if.remote_ip4,
                                   0xffffffff)]).add_vpp_config()
  
      def tearDown(self):
          p = self.ipv4_params
          p.tun_if.unconfig_ip4()
          super(TestIpsecGreIfEsp, self).tearDown()
  
  
  class TestIpsecGreIfEspTra(TemplateIpsec,
                             IpsecTun4Tests):
      """ Ipsec GRE ESP - TRA tests """
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      encryption_type = ESP
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             IP(src=self.pg1.local_ip4,
                                dst=self.pg1.remote_ip4) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_encrypt_non_ip_pkts(self, sa, sw_intf, src, dst, count=1,
                                  payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=self.pg0.remote_ip4,
                                dst=self.pg0.local_ip4) /
                             GRE() /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  IP(src="1.1.1.1", dst="1.1.1.2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.pg1.remote_mac)
              self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[GRE]
                  self.assertEqual(e[IP].dst, "1.1.1.2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGreIfEspTra, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip4,
                                     self.pg0.remote_ip4)
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          config_tra_params(p, self.encryption_type, p.tun_if)
  
          VppIpRoute(self, "1.1.1.2", 32,
                     [VppRoutePath(p.tun_if.remote_ip4,
                                   0xffffffff)]).add_vpp_config()
  
      def tearDown(self):
          p = self.ipv4_params
          p.tun_if.unconfig_ip4()
          super(TestIpsecGreIfEspTra, self).tearDown()
  
      def test_gre_non_ip(self):
          p = self.ipv4_params
          tx = self.gen_encrypt_non_ip_pkts(p.scapy_tun_sa, self.tun_if,
                                            src=p.remote_tun_if_host,
                                            dst=self.pg1.remote_ip6)
          self.send_and_assert_no_replies(self.tun_if, tx)
          node_name = ('/err/%s/unsupported payload' %
                       self.tun4_decrypt_node_name)
          self.assertEqual(1, self.statistics.get_err_counter(node_name))
  
  
  class TestIpsecGre6IfEspTra(TemplateIpsec,
                              IpsecTun6Tests):
      """ Ipsec GRE ESP - TRA tests """
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
      encryption_type = ESP
  
      def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1,
                            payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IPv6(src=self.pg0.remote_ip6,
                                  dst=self.pg0.local_ip6) /
                             GRE() /
                             IPv6(src=self.pg1.local_ip6,
                                  dst=self.pg1.remote_ip6) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts6(self, sw_intf, src, dst, count=1,
                    payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  IPv6(src="1::1", dst="1::2") /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted6(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[Ether].dst, self.pg1.remote_mac)
              self.assert_equal(rx[IPv6].dst, self.pg1.remote_ip6)
  
      def verify_encrypted6(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IPv6])
                  if not pkt.haslayer(IPv6):
                      pkt = IPv6(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assertTrue(pkt.haslayer(GRE))
                  e = pkt[GRE]
                  self.assertEqual(e[IPv6].dst, "1::2")
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def setUp(self):
          super(TestIpsecGre6IfEspTra, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv6_params
  
          bd1 = VppBridgeDomain(self, 1)
          bd1.add_vpp_config()
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol)
          p.tun_sa_in.add_vpp_config()
  
          p.tun_if = VppGreInterface(self,
                                     self.pg0.local_ip6,
                                     self.pg0.remote_ip6)
          p.tun_if.add_vpp_config()
  
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
          p.tun_protect.add_vpp_config()
  
          p.tun_if.admin_up()
          p.tun_if.config_ip6()
          config_tra_params(p, self.encryption_type, p.tun_if)
  
          r = VppIpRoute(self, "1::2", 128,
                         [VppRoutePath(p.tun_if.remote_ip6,
                                       0xffffffff,
                                       proto=DpoProto.DPO_PROTO_IP6)])
          r.add_vpp_config()
  
      def tearDown(self):
          p = self.ipv6_params
          p.tun_if.unconfig_ip6()
          super(TestIpsecGre6IfEspTra, self).tearDown()
  
  
  class TemplateIpsec4TunProtect(object):
      """ IPsec IPv4 Tunnel protect """
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
      tun4_input_node = "ipsec4-tun-input"
  
      def config_sa_tra(self, p):
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    flags=p.flags)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   flags=p.flags)
          p.tun_sa_in.add_vpp_config()
  
      def config_sa_tun(self, p):
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    self.tun_if.local_addr[p.addr_type],
                                    self.tun_if.remote_addr[p.addr_type],
                                    flags=p.flags)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   self.tun_if.remote_addr[p.addr_type],
                                   self.tun_if.local_addr[p.addr_type],
                                   flags=p.flags)
          p.tun_sa_in.add_vpp_config()
  
      def config_protect(self, p):
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
          p.tun_protect.add_vpp_config()
  
      def config_network(self, p):
          p.tun_if = VppIpIpTunInterface(self, self.pg0,
                                         self.pg0.local_ip4,
                                         self.pg0.remote_ip4)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip4()
          p.tun_if.config_ip6()
  
          p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
                               [VppRoutePath(p.tun_if.remote_ip4,
                                             0xffffffff)])
          p.route.add_vpp_config()
          r = VppIpRoute(self, p.remote_tun_if_host6, 128,
                         [VppRoutePath(p.tun_if.remote_ip6,
                                       0xffffffff,
                                       proto=DpoProto.DPO_PROTO_IP6)])
          r.add_vpp_config()
  
      def unconfig_network(self, p):
          p.route.remove_vpp_config()
          p.tun_if.remove_vpp_config()
  
      def unconfig_protect(self, p):
          p.tun_protect.remove_vpp_config()
  
      def unconfig_sa(self, p):
          p.tun_sa_out.remove_vpp_config()
          p.tun_sa_in.remove_vpp_config()
  
  
  class TestIpsec4TunProtect(TemplateIpsec,
                             TemplateIpsec4TunProtect,
                             IpsecTun4):
      """ IPsec IPv4 Tunnel protect - transport mode"""
  
      def setUp(self):
          super(TestIpsec4TunProtect, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec4TunProtect, self).tearDown()
  
      def test_tun_44(self):
          """IPSEC tunnel protect"""
  
          p = self.ipv4_params
  
          self.config_network(p)
          self.config_sa_tra(p)
          self.config_protect(p)
  
          self.verify_tun_44(p, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
          self.vapi.cli("clear ipsec sa")
          self.verify_tun_64(p, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 254)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 254)
  
          # rekey - create new SAs and update the tunnel protection
          np = copy.copy(p)
          np.crypt_key = b'X' + p.crypt_key[1:]
          np.scapy_tun_spi += 100
          np.scapy_tun_sa_id += 1
          np.vpp_tun_spi += 100
          np.vpp_tun_sa_id += 1
          np.tun_if.local_spi = p.vpp_tun_spi
          np.tun_if.remote_spi = p.scapy_tun_spi
  
          self.config_sa_tra(np)
          self.config_protect(np)
          self.unconfig_sa(p)
  
          self.verify_tun_44(np, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 381)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 381)
  
          # teardown
          self.unconfig_protect(np)
          self.unconfig_sa(np)
          self.unconfig_network(p)
  
  
  class TestIpsec4TunProtectUdp(TemplateIpsec,
                                TemplateIpsec4TunProtect,
                                IpsecTun4):
      """ IPsec IPv4 Tunnel protect - transport mode"""
  
      def setUp(self):
          super(TestIpsec4TunProtectUdp, self).setUp()
  
          self.tun_if = self.pg0
  
          p = self.ipv4_params
          p.flags = (VppEnum.vl_api_ipsec_sad_flags_t.
                     IPSEC_API_SAD_FLAG_UDP_ENCAP)
          p.nat_header = UDP(sport=5454, dport=4500)
          self.config_network(p)
          self.config_sa_tra(p)
          self.config_protect(p)
  
      def tearDown(self):
          p = self.ipv4_params
          self.unconfig_protect(p)
          self.unconfig_sa(p)
          self.unconfig_network(p)
          super(TestIpsec4TunProtectUdp, self).tearDown()
  
      def test_tun_44(self):
          """IPSEC UDP tunnel protect"""
  
          p = self.ipv4_params
  
          self.verify_tun_44(p, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
      def test_keepalive(self):
          """ IPSEC NAT Keepalive """
          self.verify_keepalive(self.ipv4_params)
  
  
  class TestIpsec4TunProtectTun(TemplateIpsec,
                                TemplateIpsec4TunProtect,
                                IpsecTun4):
      """ IPsec IPv4 Tunnel protect - tunnel mode"""
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec4TunProtectTun, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec4TunProtectTun, self).tearDown()
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=sw_intf.remote_ip4,
                                dst=sw_intf.local_ip4) /
                             IP(src=src, dst=dst) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts(self, sw_intf, src, dst, count=1,
                   payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  IP(src=src, dst=dst) /
                  UDP(sport=1144, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
              self.assert_equal(rx[IP].src, p.remote_tun_if_host)
              self.assert_packet_checksums_valid(rx)
  
      def verify_encrypted(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IP])
                  if not pkt.haslayer(IP):
                      pkt = IP(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IP].dst, self.pg0.remote_ip4)
                  self.assert_equal(pkt[IP].src, self.pg0.local_ip4)
                  inner = pkt[IP].payload
                  self.assertEqual(inner[IP][IP].dst, p.remote_tun_if_host)
  
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def test_tun_44(self):
          """IPSEC tunnel protect """
  
          p = self.ipv4_params
  
          self.config_network(p)
          self.config_sa_tun(p)
          self.config_protect(p)
  
          self.verify_tun_44(p, count=127)
  
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
          # rekey - create new SAs and update the tunnel protection
          np = copy.copy(p)
          np.crypt_key = b'X' + p.crypt_key[1:]
          np.scapy_tun_spi += 100
          np.scapy_tun_sa_id += 1
          np.vpp_tun_spi += 100
          np.vpp_tun_sa_id += 1
          np.tun_if.local_spi = p.vpp_tun_spi
          np.tun_if.remote_spi = p.scapy_tun_spi
  
          self.config_sa_tun(np)
          self.config_protect(np)
          self.unconfig_sa(p)
  
          self.verify_tun_44(np, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 254)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 254)
  
          # teardown
          self.unconfig_protect(np)
          self.unconfig_sa(np)
          self.unconfig_network(p)
  
  
  class TestIpsec4TunProtectTunDrop(TemplateIpsec,
                                    TemplateIpsec4TunProtect,
                                    IpsecTun4):
      """ IPsec IPv4 Tunnel protect - tunnel mode - drop"""
  
      encryption_type = ESP
      tun4_encrypt_node_name = "esp4-encrypt-tun"
      tun4_decrypt_node_name = "esp4-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec4TunProtectTunDrop, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec4TunProtectTunDrop, self).tearDown()
  
      def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
                           payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IP(src=sw_intf.remote_ip4,
                                dst="5.5.5.5") /
                             IP(src=src, dst=dst) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def test_tun_drop_44(self):
          """IPSEC tunnel protect bogus tunnel header """
  
          p = self.ipv4_params
  
          self.config_network(p)
          self.config_sa_tun(p)
          self.config_protect(p)
  
          tx = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
                                     src=p.remote_tun_if_host,
                                     dst=self.pg1.remote_ip4,
                                     count=63)
          self.send_and_assert_no_replies(self.tun_if, tx)
  
          # teardown
          self.unconfig_protect(p)
          self.unconfig_sa(p)
          self.unconfig_network(p)
  
  
  class TemplateIpsec6TunProtect(object):
      """ IPsec IPv6 Tunnel protect """
  
      def config_sa_tra(self, p):
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol)
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol)
          p.tun_sa_in.add_vpp_config()
  
      def config_sa_tun(self, p):
          config_tun_params(p, self.encryption_type, p.tun_if)
  
          p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
                                    p.auth_algo_vpp_id, p.auth_key,
                                    p.crypt_algo_vpp_id, p.crypt_key,
                                    self.vpp_esp_protocol,
                                    self.tun_if.local_addr[p.addr_type],
                                    self.tun_if.remote_addr[p.addr_type])
          p.tun_sa_out.add_vpp_config()
  
          p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
                                   p.auth_algo_vpp_id, p.auth_key,
                                   p.crypt_algo_vpp_id, p.crypt_key,
                                   self.vpp_esp_protocol,
                                   self.tun_if.remote_addr[p.addr_type],
                                   self.tun_if.local_addr[p.addr_type])
          p.tun_sa_in.add_vpp_config()
  
      def config_protect(self, p):
          p.tun_protect = VppIpsecTunProtect(self,
                                             p.tun_if,
                                             p.tun_sa_out,
                                             [p.tun_sa_in])
          p.tun_protect.add_vpp_config()
  
      def config_network(self, p):
          p.tun_if = VppIpIpTunInterface(self, self.pg0,
                                         self.pg0.local_ip6,
                                         self.pg0.remote_ip6)
          p.tun_if.add_vpp_config()
          p.tun_if.admin_up()
          p.tun_if.config_ip6()
          p.tun_if.config_ip4()
  
          p.route = VppIpRoute(self, p.remote_tun_if_host, 128,
                               [VppRoutePath(p.tun_if.remote_ip6,
                                             0xffffffff,
                                             proto=DpoProto.DPO_PROTO_IP6)])
          p.route.add_vpp_config()
          r = VppIpRoute(self, p.remote_tun_if_host4, 32,
                         [VppRoutePath(p.tun_if.remote_ip4,
                                       0xffffffff)])
          r.add_vpp_config()
  
      def unconfig_network(self, p):
          p.route.remove_vpp_config()
          p.tun_if.remove_vpp_config()
  
      def unconfig_protect(self, p):
          p.tun_protect.remove_vpp_config()
  
      def unconfig_sa(self, p):
          p.tun_sa_out.remove_vpp_config()
          p.tun_sa_in.remove_vpp_config()
  
  
  class TestIpsec6TunProtect(TemplateIpsec,
                             TemplateIpsec6TunProtect,
                             IpsecTun6):
      """ IPsec IPv6 Tunnel protect - transport mode"""
  
      encryption_type = ESP
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec6TunProtect, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec6TunProtect, self).tearDown()
  
      def test_tun_66(self):
          """IPSEC tunnel protect 6o6"""
  
          p = self.ipv6_params
  
          self.config_network(p)
          self.config_sa_tra(p)
          self.config_protect(p)
  
          self.verify_tun_66(p, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
          # rekey - create new SAs and update the tunnel protection
          np = copy.copy(p)
          np.crypt_key = b'X' + p.crypt_key[1:]
          np.scapy_tun_spi += 100
          np.scapy_tun_sa_id += 1
          np.vpp_tun_spi += 100
          np.vpp_tun_sa_id += 1
          np.tun_if.local_spi = p.vpp_tun_spi
          np.tun_if.remote_spi = p.scapy_tun_spi
  
          self.config_sa_tra(np)
          self.config_protect(np)
          self.unconfig_sa(p)
  
          self.verify_tun_66(np, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 254)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 254)
  
          # bounce the interface state
          p.tun_if.admin_down()
          self.verify_drop_tun_66(np, count=127)
          node = ('/err/ipsec6-tun-input/%s' %
                  'ipsec packets received on disabled interface')
          self.assertEqual(127, self.statistics.get_err_counter(node))
          p.tun_if.admin_up()
          self.verify_tun_66(np, count=127)
  
          # 3 phase rekey
          #  1) add two input SAs [old, new]
          #  2) swap output SA to [new]
          #  3) use only [new] input SA
          np3 = copy.copy(np)
          np3.crypt_key = b'Z' + p.crypt_key[1:]
          np3.scapy_tun_spi += 100
          np3.scapy_tun_sa_id += 1
          np3.vpp_tun_spi += 100
          np3.vpp_tun_sa_id += 1
          np3.tun_if.local_spi = p.vpp_tun_spi
          np3.tun_if.remote_spi = p.scapy_tun_spi
  
          self.config_sa_tra(np3)
  
          # step 1;
          p.tun_protect.update_vpp_config(np.tun_sa_out,
                                          [np.tun_sa_in, np3.tun_sa_in])
          self.verify_tun_66(np, np, count=127)
          self.verify_tun_66(np3, np, count=127)
  
          # step 2;
          p.tun_protect.update_vpp_config(np3.tun_sa_out,
                                          [np.tun_sa_in, np3.tun_sa_in])
          self.verify_tun_66(np, np3, count=127)
          self.verify_tun_66(np3, np3, count=127)
  
          # step 1;
          p.tun_protect.update_vpp_config(np3.tun_sa_out,
                                          [np3.tun_sa_in])
          self.verify_tun_66(np3, np3, count=127)
          self.verify_drop_tun_66(np, count=127)
  
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127*9)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127*8)
          self.unconfig_sa(np)
  
          # teardown
          self.unconfig_protect(np3)
          self.unconfig_sa(np3)
          self.unconfig_network(p)
  
      def test_tun_46(self):
          """IPSEC tunnel protect 4o6"""
  
          p = self.ipv6_params
  
          self.config_network(p)
          self.config_sa_tra(p)
          self.config_protect(p)
  
          self.verify_tun_46(p, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
          # teardown
          self.unconfig_protect(p)
          self.unconfig_sa(p)
          self.unconfig_network(p)
  
  
  class TestIpsec6TunProtectTun(TemplateIpsec,
                                TemplateIpsec6TunProtect,
                                IpsecTun6):
      """ IPsec IPv6 Tunnel protect - tunnel mode"""
  
      encryption_type = ESP
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec6TunProtectTun, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec6TunProtectTun, self).tearDown()
  
      def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1,
                            payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IPv6(src=sw_intf.remote_ip6,
                                  dst=sw_intf.local_ip6) /
                             IPv6(src=src, dst=dst) /
                             UDP(sport=1166, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def gen_pkts6(self, sw_intf, src, dst, count=1,
                    payload_size=100):
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  IPv6(src=src, dst=dst) /
                  UDP(sport=1166, dport=2233) /
                  Raw(b'X' * payload_size)
                  for i in range(count)]
  
      def verify_decrypted6(self, p, rxs):
          for rx in rxs:
              self.assert_equal(rx[IPv6].dst, self.pg1.remote_ip6)
              self.assert_equal(rx[IPv6].src, p.remote_tun_if_host)
              self.assert_packet_checksums_valid(rx)
  
      def verify_encrypted6(self, p, sa, rxs):
          for rx in rxs:
              try:
                  pkt = sa.decrypt(rx[IPv6])
                  if not pkt.haslayer(IPv6):
                      pkt = IPv6(pkt[Raw].load)
                  self.assert_packet_checksums_valid(pkt)
                  self.assert_equal(pkt[IPv6].dst, self.pg0.remote_ip6)
                  self.assert_equal(pkt[IPv6].src, self.pg0.local_ip6)
                  inner = pkt[IPv6].payload
                  self.assertEqual(inner[IPv6][IPv6].dst, p.remote_tun_if_host)
  
              except (IndexError, AssertionError):
                  self.logger.debug(ppp("Unexpected packet:", rx))
                  try:
                      self.logger.debug(ppp("Decrypted packet:", pkt))
                  except:
                      pass
                  raise
  
      def test_tun_66(self):
          """IPSEC tunnel protect """
  
          p = self.ipv6_params
  
          self.config_network(p)
          self.config_sa_tun(p)
          self.config_protect(p)
  
          self.verify_tun_66(p, count=127)
  
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 127)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 127)
  
          # rekey - create new SAs and update the tunnel protection
          np = copy.copy(p)
          np.crypt_key = b'X' + p.crypt_key[1:]
          np.scapy_tun_spi += 100
          np.scapy_tun_sa_id += 1
          np.vpp_tun_spi += 100
          np.vpp_tun_sa_id += 1
          np.tun_if.local_spi = p.vpp_tun_spi
          np.tun_if.remote_spi = p.scapy_tun_spi
  
          self.config_sa_tun(np)
          self.config_protect(np)
          self.unconfig_sa(p)
  
          self.verify_tun_66(np, count=127)
          c = p.tun_if.get_rx_stats()
          self.assertEqual(c['packets'], 254)
          c = p.tun_if.get_tx_stats()
          self.assertEqual(c['packets'], 254)
  
          # teardown
          self.unconfig_protect(np)
          self.unconfig_sa(np)
          self.unconfig_network(p)
  
  
  class TestIpsec6TunProtectTunDrop(TemplateIpsec,
                                    TemplateIpsec6TunProtect,
                                    IpsecTun6):
      """ IPsec IPv6 Tunnel protect - tunnel mode - drop"""
  
      encryption_type = ESP
      tun6_encrypt_node_name = "esp6-encrypt-tun"
      tun6_decrypt_node_name = "esp6-decrypt-tun"
  
      def setUp(self):
          super(TestIpsec6TunProtectTunDrop, self).setUp()
  
          self.tun_if = self.pg0
  
      def tearDown(self):
          super(TestIpsec6TunProtectTunDrop, self).tearDown()
  
      def gen_encrypt_pkts5(self, sa, sw_intf, src, dst, count=1,
                            payload_size=100):
          # the IP destination of the revelaed packet does not match
          # that assigned to the tunnel
          return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
                  sa.encrypt(IPv6(src=sw_intf.remote_ip6,
                                  dst="5::5") /
                             IPv6(src=src, dst=dst) /
                             UDP(sport=1144, dport=2233) /
                             Raw(b'X' * payload_size))
                  for i in range(count)]
  
      def test_tun_drop_66(self):
          """IPSEC 6 tunnel protect bogus tunnel header """
  
          p = self.ipv6_params
  
          self.config_network(p)
          self.config_sa_tun(p)
          self.config_protect(p)
  
          tx = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
                                      src=p.remote_tun_if_host,
                                      dst=self.pg1.remote_ip6,
                                      count=63)
          self.send_and_assert_no_replies(self.tun_if, tx)
  
          self.unconfig_protect(p)
          self.unconfig_sa(p)
          self.unconfig_network(p)
  
  
  if __name__ == '__main__':
      unittest.main(testRunner=VppTestRunner)
  