X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_ipsec_tun_if_esp.py;h=dee4af472c1e675b47db0591e3cf28b3f74976b4;hb=12989b538;hp=e9894a9f3405173ccfca096929c7f9d48cbd83d0;hpb=987aea8ec122065ab781242de24877f7cb377a5c;p=vpp.git diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py index e9894a9f340..dee4af472c1 100644 --- a/test/test_ipsec_tun_if_esp.py +++ b/test/test_ipsec_tun_if_esp.py @@ -1,12 +1,49 @@ import unittest import socket import copy -from scapy.layers.ipsec import ESP + +from scapy.layers.ipsec import SecurityAssociation, 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 from template_ipsec import TemplateIpsec, IpsecTun4Tests, IpsecTun6Tests, \ - IpsecTun4, IpsecTun6, IpsecTcpTests, config_tun_params + IpsecTun4, IpsecTun6, IpsecTcpTests, mk_scapy_crypt_key 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 + + +def config_tun_params(p, encryption_type, tun_if): + ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6} + use_esn = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_USE_ESN)) + crypt_key = mk_scapy_crypt_key(p) + 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=tun_if.remote_ip, + dst=tun_if.local_ip), + nat_t_header=p.nat_header, + use_esn=use_esn) + 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=tun_if.remote_ip, + src=tun_if.local_ip), + nat_t_header=p.nat_header, + use_esn=use_esn) class TemplateIpsec4TunIfEsp(TemplateIpsec): @@ -14,50 +51,136 @@ class TemplateIpsec4TunIfEsp(TemplateIpsec): 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 - 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) - tun_if.add_vpp_config() - tun_if.admin_up() - tun_if.config_ip4() - tun_if.config_ip6() - - VppIpRoute(self, p.remote_tun_if_host, 32, - [VppRoutePath(tun_if.remote_ip4, - 0xffffffff)]).add_vpp_config() - VppIpRoute(self, p.remote_tun_if_host6, 128, - [VppRoutePath(tun_if.remote_ip6, - 0xffffffff, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1).add_vpp_config() + + 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): - if not self.vpp_dead: - self.vapi.cli("show hardware") 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" - tun4_decrypt_node_name = "esp4-decrypt" + 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 """ @@ -75,42 +198,44 @@ class TemplateIpsec6TunIfEsp(TemplateIpsec): 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() - - VppIpRoute(self, p.remote_tun_if_host, 128, - [VppRoutePath(tun_if.remote_ip6, - 0xffffffff, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1).add_vpp_config() - VppIpRoute(self, p.remote_tun_if_host4, 32, - [VppRoutePath(tun_if.remote_ip4, - 0xffffffff)]).add_vpp_config() + 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): - if not self.vpp_dead: - self.vapi.cli("show hardware") super(TemplateIpsec6TunIfEsp, self).tearDown() class TestIpsec6TunIfEsp1(TemplateIpsec6TunIfEsp, IpsecTun6Tests): """ Ipsec ESP - TUN tests """ - tun6_encrypt_node_name = "esp6-encrypt" - tun6_decrypt_node_name = "esp6-decrypt" + 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) @@ -118,8 +243,8 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4): """ IPsec IPv4 Multi Tunnel interface """ encryption_type = ESP - tun4_encrypt_node_name = "esp4-encrypt" - tun4_decrypt_node_name = "esp4-decrypt" + tun4_encrypt_node_name = "esp4-encrypt-tun" + tun4_decrypt_node_name = "esp4-decrypt-tun" def setUp(self): super(TestIpsec4MultiTunIfEsp, self).setUp() @@ -127,6 +252,8 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4): 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) @@ -142,26 +269,24 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4): 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.auth_key, + dst=self.pg0.remote_hosts[ii].ip4) 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): - if not self.vpp_dead: - self.vapi.cli("show hardware") super(TestIpsec4MultiTunIfEsp, self).tearDown() def test_tun_44(self): @@ -174,12 +299,198 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4): 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-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 TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6): """ IPsec IPv6 Multi Tunnel interface """ encryption_type = ESP - tun6_encrypt_node_name = "esp6-encrypt" - tun6_decrypt_node_name = "esp6-decrypt" + tun6_encrypt_node_name = "esp6-encrypt-tun" + tun6_decrypt_node_name = "esp6-decrypt-tun" def setUp(self): super(TestIpsec6MultiTunIfEsp, self).setUp() @@ -187,6 +498,8 @@ class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6): 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) @@ -202,28 +515,26 @@ class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6): 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.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) - VppIpRoute(self, p.remote_tun_if_host, 128, - [VppRoutePath(p.tun_if.remote_ip6, - 0xffffffff, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1).add_vpp_config() + 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): - if not self.vpp_dead: - self.vapi.cli("show hardware") super(TestIpsec6MultiTunIfEsp, self).tearDown() def test_tun_66(self): @@ -236,5 +547,801 @@ class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6): 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 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 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.remote_addr[p.addr_type], + self.tun_if.local_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 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.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.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""" + + 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) + + # 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*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) + + def test_tun_46(self): + """IPSEC tunnel protect""" + + 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) + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)