import unittest import socket import copy from scapy.layers.ipsec import ESP from scapy.layers.l2 import Ether, Raw, GRE from scapy.layers.inet import IP, UDP from scapy.layers.inet6 import IPv6 from framework import VppTestRunner, is_skip_aarch64_set, is_platform_aarch64 from template_ipsec import TemplateIpsec, IpsecTun4Tests, IpsecTun6Tests, \ IpsecTun4, IpsecTun6, IpsecTcpTests, 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 util import ppp from vpp_papi import VppEnum 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() 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 TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests): """ Ipsec ESP - TUN tests """ tun4_encrypt_node_name = "esp4-encrypt-tun" tun4_decrypt_node_name = "esp4-decrypt" def test_tun_basic64(self): """ ipsec 6o4 tunnel basic test """ self.tun4_encrypt_node_name = "esp6-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 = "esp6-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 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 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) tun_if.add_vpp_config() tun_if.admin_up() tun_if.config_ip6() tun_if.config_ip4() r = VppIpRoute(self, p.remote_tun_if_host, 128, [VppRoutePath(tun_if.remote_ip6, 0xffffffff, proto=DpoProto.DPO_PROTO_IP6)]) r.add_vpp_config() r = VppIpRoute(self, p.remote_tun_if_host4, 32, [VppRoutePath(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" def test_tun_basic46(self): """ ipsec 4o6 tunnel basic test """ self.tun6_encrypt_node_name = "esp4-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 = "esp4-encrypt-tun" self.verify_tun_46(self.params[socket.AF_INET6], count=257) 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" def setUp(self): super(TestIpsec4MultiTunIfEsp, self).setUp() self.tun_if = self.pg0 self.multi_params = [] 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 config_tun_params(p, self.encryption_type, self.tun_if) self.multi_params.append(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) p.tun_if.add_vpp_config() p.tun_if.admin_up() p.tun_if.config_ip4() 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) 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" def config_network(self, p): config_tun_params(p, self.encryption_type, self.tun_if) 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() 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 = '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, self.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, self.tun_if.local_addr[p.addr_type], self.tun_if.remote_addr[p.addr_type], 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, self.tun_if.remote_addr[p.addr_type], self.tun_if.local_addr[p.addr_type], 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': "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': "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': "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': "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': "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': "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 TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6): """ IPsec IPv6 Multi Tunnel interface """ encryption_type = ESP tun6_encrypt_node_name = "esp6-encrypt-tun" tun6_decrypt_node_name = "esp6-decrypt" def setUp(self): super(TestIpsec6MultiTunIfEsp, self).setUp() self.tun_if = self.pg0 self.multi_params = [] 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 config_tun_params(p, self.encryption_type, self.tun_if) self.multi_params.append(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, is_ip6=True) p.tun_if.add_vpp_config() p.tun_if.admin_up() p.tun_if.config_ip6() 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) @unittest.skipIf(is_skip_aarch64_set and is_platform_aarch64, "test doesn't work on aarch64") 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('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('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() self.tun = VppGreInterface(self, self.pg0.local_ip4, self.pg0.remote_ip4, type=(VppEnum.vl_api_gre_tunnel_type_t. GRE_API_TUNNEL_TYPE_TEB)) self.tun.add_vpp_config() p.tun_protect = VppIpsecTunProtect(self, self.tun, p.tun_sa_out, [p.tun_sa_in]) p.tun_protect.add_vpp_config() self.tun.admin_up() self.tun.config_ip4() VppBridgeDomainPort(self, bd1, self.tun).add_vpp_config() VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config() self.vapi.cli("clear ipsec sa") def tearDown(self): self.tun.unconfig_ip4() super(TestIpsecGreTebIfEsp, 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('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('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() self.tun = VppGreInterface(self, self.pg0.local_ip4, self.pg0.remote_ip4) self.tun.add_vpp_config() p.tun_protect = VppIpsecTunProtect(self, self.tun, p.tun_sa_out, [p.tun_sa_in]) p.tun_protect.add_vpp_config() self.tun.admin_up() self.tun.config_ip4() VppIpRoute(self, "1.1.1.2", 32, [VppRoutePath(self.tun.remote_ip4, 0xffffffff)]).add_vpp_config() def tearDown(self): self.tun.unconfig_ip4() super(TestIpsecGreIfEsp, self).tearDown() class TemplateIpsec4TunProtect(object): """ IPsec IPv4 Tunnel protect """ def config_sa_tra(self, p): config_tun_params(p, self.encryption_type, self.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, self.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.remote_addr[p.addr_type], self.tun_if.local_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_ip4, self.pg0.remote_ip4) p.tun_if.add_vpp_config() p.tun_if.admin_up() p.tun_if.config_ip4() 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.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""" encryption_type = ESP tun4_encrypt_node_name = "esp4-encrypt-tun" tun4_decrypt_node_name = "esp4-decrypt-tun" 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) # rekey - create new SAs and update the tunnel protection np = copy.copy(p) np.crypt_key = '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'], 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 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('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('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 = '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 TemplateIpsec6TunProtect(object): """ IPsec IPv6 Tunnel protect """ def config_sa_tra(self, p): config_tun_params(p, self.encryption_type, self.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, self.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.remote_addr[p.addr_type], self.tun_if.local_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.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() 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""" 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 = '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) # 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 = '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*7) c = p.tun_if.get_tx_stats() self.assertEqual(c['packets'], 127*7) self.unconfig_sa(np) # teardown self.unconfig_protect(np3) self.unconfig_sa(np3) 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('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('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 = '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) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)