X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_ipsec_tun_if_esp.py;h=ba421694d60789285a8250682bc77f2f438d0a1b;hb=041add7d1;hp=469ebc7fc874ecb0fe4e0220e43d434e63feea0d;hpb=02950406c49a743f631395ed52073921744e1afd;p=vpp.git diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py index 469ebc7fc87..ba421694d60 100644 --- a/test/test_ipsec_tun_if_esp.py +++ b/test/test_ipsec_tun_if_esp.py @@ -3,37 +3,48 @@ import socket import copy from scapy.layers.ipsec import SecurityAssociation, ESP -from scapy.layers.l2 import Ether, GRE +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 + 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_ipsec import VppIpsecSA, VppIpsecTunProtect, VppIpsecInterface from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort +from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint +from vpp_teib import VppTeib from util import ppp from vpp_papi import VppEnum +from vpp_papi_provider import CliFailedCommandError +from vpp_acl import AclRule, VppAcl, VppAclInterface -def config_tun_params(p, encryption_type, tun_if): +def config_tun_params(p, encryption_type, tun_if, src=None, dst=None): 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) + if tun_if: + p.tun_dst = tun_if.remote_ip + p.tun_src = tun_if.local_ip + else: + p.tun_dst = dst + p.tun_src = src + 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), + src=p.tun_dst, + dst=p.tun_src), nat_t_header=p.nat_header, esn_en=esn_en) p.vpp_tun_sa = SecurityAssociation( @@ -42,8 +53,8 @@ def config_tun_params(p, encryption_type, tun_if): 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), + dst=p.tun_dst, + src=p.tun_src), nat_t_header=p.nat_header, esn_en=esn_en) @@ -53,18 +64,22 @@ def config_tra_params(p, encryption_type, tun_if): 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) + esn_en=esn_en, + nat_t_header=p.nat_header) 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) + esn_en=esn_en, + nat_t_header=p.nat_header) class TemplateIpsec4TunIfEsp(TemplateIpsec): @@ -127,16 +142,42 @@ class TemplateIpsec4TunIfEspUdp(TemplateIpsec): def tearDownClass(cls): super(TemplateIpsec4TunIfEspUdp, cls).tearDownClass() + def verify_encrypted(self, p, sa, rxs): + for rx in rxs: + try: + # ensure the UDP ports are correct before we decrypt + # which strips them + self.assertTrue(rx.haslayer(UDP)) + self.assert_equal(rx[UDP].sport, 4500) + self.assert_equal(rx[UDP].dport, 4500) + + 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, "1.1.1.1") + self.assert_equal(pkt[IP].src, self.pg1.remote_ip4) + 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(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) + def config_network(self): + + 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, @@ -198,11 +239,34 @@ class TestIpsec4TunIfEspUdp(TemplateIpsec4TunIfEspUdp, IpsecTun4Tests): tun4_input_node = "ipsec4-tun-input" + def setUp(self): + super(TemplateIpsec4TunIfEspUdp, self).setUp() + self.config_network() + def test_keepalive(self): """ IPSEC NAT Keepalive """ self.verify_keepalive(self.ipv4_params) +class TestIpsec4TunIfEspUdpGCM(TemplateIpsec4TunIfEspUdp, IpsecTun4Tests): + """ Ipsec ESP UDP GCM tests """ + + tun4_input_node = "ipsec4-tun-input" + + def setUp(self): + super(TemplateIpsec4TunIfEspUdp, self).setUp() + p = self.ipv4_params + p.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t. + IPSEC_API_INTEG_ALG_NONE) + p.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t. + IPSEC_API_CRYPTO_ALG_AES_GCM_256) + p.crypt_algo = "AES-GCM" + p.auth_algo = "NULL" + p.crypt_key = b"JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h" + p.salt = 0 + self.config_network() + + class TestIpsec4TunIfEsp2(TemplateIpsec4TunIfEsp, IpsecTcpTests): """ Ipsec ESP - TCP tests """ pass @@ -339,7 +403,7 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4): """ 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, + tx = tx + self.gen_encrypt_pkts(p, 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) @@ -485,17 +549,17 @@ class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4): {'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), + IPSEC_API_INTEG_ALG_SHA_512_256), 'scapy-crypto': "AES-CBC", - 'scapy-integ': "HMAC-SHA1-96", + 'scapy-integ': "SHA2-512-256", '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), + IPSEC_API_INTEG_ALG_SHA_256_128), 'scapy-crypto': "AES-CBC", - 'scapy-integ': "HMAC-SHA1-96", + 'scapy-integ': "SHA2-256-128", 'salt': 0, 'key': b"JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h"}, {'vpp-crypto': (VppEnum.vl_api_ipsec_crypto_alg_t. @@ -544,7 +608,7 @@ class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4): class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4): - """ IPsec IPv4 Tunnel interface all Algos """ + """ IPsec IPv4 Tunnel interface no Algos """ encryption_type = ESP tun4_encrypt_node_name = "esp4-encrypt-tun" @@ -595,6 +659,7 @@ class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4): super(TestIpsec4TunIfEspNoAlgo, self).tearDown() def test_tun_44(self): + """ IPSec SA with NULL algos """ p = self.ipv4_params self.config_network(p) @@ -676,7 +741,7 @@ class TestIpsecGreTebIfEsp(TemplateIpsec, encryption_type = ESP omac = "00:11:22:33:44:55" - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -770,6 +835,8 @@ class TestIpsecGreTebIfEsp(TemplateIpsec, VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config() self.vapi.cli("clear ipsec sa") + self.vapi.cli("sh adj") + self.vapi.cli("sh ipsec tun") def tearDown(self): p = self.ipv4_params @@ -777,6 +844,126 @@ class TestIpsecGreTebIfEsp(TemplateIpsec, 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, p, 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 """ @@ -785,7 +972,7 @@ class TestIpsecGreTebIfEspTra(TemplateIpsec, encryption_type = ESP omac = "00:11:22:33:44:55" - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -882,6 +1069,127 @@ class TestIpsecGreTebIfEspTra(TemplateIpsec, super(TestIpsecGreTebIfEspTra, self).tearDown() +class TestIpsecGreTebUdpIfEspTra(TemplateIpsec, + IpsecTun4Tests): + """ Ipsec GRE TEB UDP 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, p, 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: + self.assertTrue(rx.haslayer(UDP)) + self.assertEqual(rx[UDP].dport, 4545) + self.assertEqual(rx[UDP].sport, 5454) + 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(TestIpsecGreTebUdpIfEspTra, self).setUp() + + self.tun_if = self.pg0 + + p = self.ipv4_params + 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=4545) + + 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, + flags=p.flags, + udp_src=5454, + udp_dst=4545) + 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 | + VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_IS_INBOUND), + udp_src=5454, + udp_dst=4545) + 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") + self.logger.info(self.vapi.cli("sh ipsec sa 0")) + + def tearDown(self): + p = self.ipv4_params + p.tun_if.unconfig_ip4() + super(TestIpsecGreTebUdpIfEspTra, self).tearDown() + + class TestIpsecGreIfEsp(TemplateIpsec, IpsecTun4Tests): """ Ipsec GRE ESP - TUN tests """ @@ -889,7 +1197,7 @@ class TestIpsecGreIfEsp(TemplateIpsec, tun4_decrypt_node_name = "esp4-decrypt-tun" encryption_type = ESP - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -992,7 +1300,7 @@ class TestIpsecGreIfEspTra(TemplateIpsec, tun4_decrypt_node_name = "esp4-decrypt-tun" encryption_type = ESP - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -1052,9 +1360,6 @@ class TestIpsecGreIfEspTra(TemplateIpsec, 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, @@ -1109,7 +1414,7 @@ class TestIpsecGre6IfEspTra(TemplateIpsec, tun6_decrypt_node_name = "esp6-decrypt-tun" encryption_type = ESP - def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts6(self, p, 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, @@ -1201,7 +1506,272 @@ class TestIpsecGre6IfEspTra(TemplateIpsec, super(TestIpsecGre6IfEspTra, self).tearDown() -class TemplateIpsec4TunProtect(object): +class TestIpsecMGreIfEspTra4(TemplateIpsec, IpsecTun4): + """ Ipsec mGRE ESP v4 TRA tests """ + tun4_encrypt_node_name = "esp4-encrypt-tun" + tun4_decrypt_node_name = "esp4-decrypt-tun" + encryption_type = ESP + + def gen_encrypt_pkts(self, p, 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=p.tun_dst, + 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=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[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, 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 setUp(self): + super(TestIpsecMGreIfEspTra4, self).setUp() + + N_NHS = 16 + self.tun_if = self.pg0 + p = self.ipv4_params + p.tun_if = VppGreInterface(self, + self.pg0.local_ip4, + "0.0.0.0", + mode=(VppEnum.vl_api_tunnel_mode_t. + TUNNEL_API_MODE_MP)) + p.tun_if.add_vpp_config() + p.tun_if.admin_up() + p.tun_if.config_ip4() + p.tun_if.generate_remote_hosts(N_NHS) + self.pg0.generate_remote_hosts(N_NHS) + self.pg0.configure_ipv4_neighbors() + + # setup some SAs for several next-hops on the interface + self.multi_params = [] + + for ii in range(N_NHS): + 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_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_protect = VppIpsecTunProtect( + self, + p.tun_if, + p.tun_sa_out, + [p.tun_sa_in], + nh=p.tun_if.remote_hosts[ii].ip4) + p.tun_protect.add_vpp_config() + config_tra_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_hosts[ii].ip4, + p.tun_if.sw_if_index)]).add_vpp_config() + + # in this v4 variant add the teibs after the protect + p.teib = VppTeib(self, p.tun_if, + p.tun_if.remote_hosts[ii].ip4, + self.pg0.remote_hosts[ii].ip4).add_vpp_config() + p.tun_dst = self.pg0.remote_hosts[ii].ip4 + self.logger.info(self.vapi.cli("sh ipsec protect-hash")) + + def tearDown(self): + p = self.ipv4_params + p.tun_if.unconfig_ip4() + super(TestIpsecMGreIfEspTra4, self).tearDown() + + def test_tun_44(self): + """mGRE IPSEC 44""" + N_PKTS = 63 + for p in self.multi_params: + self.verify_tun_44(p, count=N_PKTS) + p.teib.remove_vpp_config() + self.verify_tun_dropped_44(p, count=N_PKTS) + p.teib.add_vpp_config() + self.verify_tun_44(p, count=N_PKTS) + + +class TestIpsecMGreIfEspTra6(TemplateIpsec, IpsecTun6): + """ Ipsec mGRE ESP v6 TRA tests """ + tun6_encrypt_node_name = "esp6-encrypt-tun" + tun6_decrypt_node_name = "esp6-decrypt-tun" + encryption_type = ESP + + def gen_encrypt_pkts6(self, p, 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=p.tun_dst, + 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=dst) / + 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, 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 setUp(self): + super(TestIpsecMGreIfEspTra6, self).setUp() + + self.vapi.cli("set logging class ipsec level debug") + + N_NHS = 16 + self.tun_if = self.pg0 + p = self.ipv6_params + p.tun_if = VppGreInterface(self, + self.pg0.local_ip6, + "::", + mode=(VppEnum.vl_api_tunnel_mode_t. + TUNNEL_API_MODE_MP)) + p.tun_if.add_vpp_config() + p.tun_if.admin_up() + p.tun_if.config_ip6() + p.tun_if.generate_remote_hosts(N_NHS) + self.pg0.generate_remote_hosts(N_NHS) + self.pg0.configure_ipv6_neighbors() + + # setup some SAs for several next-hops on the interface + self.multi_params = [] + + for ii in range(N_NHS): + p = copy.copy(self.ipv6_params) + + p.remote_tun_if_host = "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_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() + + # in this v6 variant add the teibs first then the protection + p.tun_dst = self.pg0.remote_hosts[ii].ip6 + VppTeib(self, p.tun_if, + p.tun_if.remote_hosts[ii].ip6, + p.tun_dst).add_vpp_config() + + p.tun_protect = VppIpsecTunProtect( + self, + p.tun_if, + p.tun_sa_out, + [p.tun_sa_in], + nh=p.tun_if.remote_hosts[ii].ip6) + p.tun_protect.add_vpp_config() + config_tra_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_hosts[ii].ip6, + p.tun_if.sw_if_index)]).add_vpp_config() + p.tun_dst = self.pg0.remote_hosts[ii].ip6 + + self.logger.info(self.vapi.cli("sh log")) + self.logger.info(self.vapi.cli("sh ipsec protect-hash")) + self.logger.info(self.vapi.cli("sh adj 41")) + + def tearDown(self): + p = self.ipv6_params + p.tun_if.unconfig_ip6() + super(TestIpsecMGreIfEspTra6, self).tearDown() + + def test_tun_66(self): + """mGRE IPSec 66""" + for p in self.multi_params: + self.verify_tun_66(p, count=63) + + +class TemplateIpsec4TunProtect(object): """ IPsec IPv4 Tunnel protect """ encryption_type = ESP @@ -1233,8 +1803,8 @@ class TemplateIpsec4TunProtect(object): 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], + self.tun_if.remote_addr[p.addr_type], flags=p.flags) p.tun_sa_out.add_vpp_config() @@ -1359,7 +1929,7 @@ class TestIpsec4TunProtectUdp(TemplateIpsec, 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.nat_header = UDP(sport=4500, dport=4500) self.config_network(p) self.config_sa_tra(p) self.config_protect(p) @@ -1371,6 +1941,13 @@ class TestIpsec4TunProtectUdp(TemplateIpsec, self.unconfig_network(p) super(TestIpsec4TunProtectUdp, self).tearDown() + def verify_encrypted(self, p, sa, rxs): + # ensure encrypted packets are recieved with the default UDP ports + for rx in rxs: + self.assertEqual(rx[UDP].sport, 4500) + self.assertEqual(rx[UDP].dport, 4500) + super(TestIpsec4TunProtectUdp, self).verify_encrypted(p, sa, rxs) + def test_tun_44(self): """IPSEC UDP tunnel protect""" @@ -1404,7 +1981,7 @@ class TestIpsec4TunProtectTun(TemplateIpsec, def tearDown(self): super(TestIpsec4TunProtectTun, self).tearDown() - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -1457,6 +2034,17 @@ class TestIpsec4TunProtectTun(TemplateIpsec, self.config_sa_tun(p) self.config_protect(p) + # also add an output features on the tunnel and physical interface + # so we test they still work + r_all = AclRule(True, + src_prefix="0.0.0.0/0", + dst_prefix="0.0.0.0/0", + proto=0) + a = VppAcl(self, [r_all]).add_vpp_config() + + VppAclInterface(self, self.pg0.sw_if_index, [a]).add_vpp_config() + VppAclInterface(self, p.tun_if.sw_if_index, [a]).add_vpp_config() + self.verify_tun_44(p, count=127) c = p.tun_if.get_rx_stats() @@ -1507,7 +2095,7 @@ class TestIpsec4TunProtectTunDrop(TemplateIpsec, def tearDown(self): super(TestIpsec4TunProtectTunDrop, self).tearDown() - def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts(self, p, 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, @@ -1526,7 +2114,7 @@ class TestIpsec4TunProtectTunDrop(TemplateIpsec, self.config_sa_tun(p) self.config_protect(p) - tx = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if, + tx = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if, src=p.remote_tun_if_host, dst=self.pg1.remote_ip4, count=63) @@ -1563,8 +2151,8 @@ class TemplateIpsec6TunProtect(object): 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]) + 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, @@ -1756,7 +2344,7 @@ class TestIpsec6TunProtectTun(TemplateIpsec, def tearDown(self): super(TestIpsec6TunProtectTun, self).tearDown() - def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts6(self, p, 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, @@ -1859,7 +2447,7 @@ class TestIpsec6TunProtectTunDrop(TemplateIpsec, def tearDown(self): super(TestIpsec6TunProtectTunDrop, self).tearDown() - def gen_encrypt_pkts5(self, sa, sw_intf, src, dst, count=1, + def gen_encrypt_pkts6(self, p, 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 @@ -1880,7 +2468,7 @@ class TestIpsec6TunProtectTunDrop(TemplateIpsec, self.config_sa_tun(p) self.config_protect(p) - tx = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if, + tx = self.gen_encrypt_pkts6(p, p.scapy_tun_sa, self.tun_if, src=p.remote_tun_if_host, dst=self.pg1.remote_ip6, count=63) @@ -1891,5 +2479,465 @@ class TestIpsec6TunProtectTunDrop(TemplateIpsec, self.unconfig_network(p) +class TemplateIpsecItf4(object): + """ IPsec Interface IPv4 """ + + 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_tun(self, p, src, dst): + config_tun_params(p, self.encryption_type, None, src, dst) + + 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, + src, dst, + 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, + dst, src, + 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, instance=0xffffffff): + p.tun_if = VppIpsecInterface(self, instance=instance) + + 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 TestIpsecItf4(TemplateIpsec, + TemplateIpsecItf4, + IpsecTun4): + """ IPsec Interface IPv4 """ + + def setUp(self): + super(TestIpsecItf4, self).setUp() + + self.tun_if = self.pg0 + + def tearDown(self): + super(TestIpsecItf4, self).tearDown() + + def test_tun_instance_44(self): + p = self.ipv4_params + self.config_network(p, instance=3) + + with self.assertRaises(CliFailedCommandError): + self.vapi.cli("show interface ipsec0") + + output = self.vapi.cli("show interface ipsec3") + self.assertTrue("unknown" not in output) + + self.unconfig_network(p) + + def test_tun_44(self): + """IPSEC interface IPv4""" + + n_pkts = 127 + p = self.ipv4_params + + self.config_network(p) + self.config_sa_tun(p, + self.pg0.local_ip4, + self.pg0.remote_ip4) + self.config_protect(p) + + self.verify_tun_44(p, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], n_pkts) + + p.tun_if.admin_down() + self.verify_tun_dropped_44(p, count=n_pkts) + p.tun_if.admin_up() + self.verify_tun_44(p, count=n_pkts) + + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], 3*n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], 2*n_pkts) + + # it's a v6 packet when its encrypted + self.tun4_encrypt_node_name = "esp6-encrypt-tun" + + self.verify_tun_64(p, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], 4*n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], 3*n_pkts) + + self.tun4_encrypt_node_name = "esp4-encrypt-tun" + + self.vapi.cli("clear interfaces") + + # 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.pg0.local_ip4, + self.pg0.remote_ip4) + self.config_protect(np) + self.unconfig_sa(p) + + self.verify_tun_44(np, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], n_pkts) + + # teardown + self.unconfig_protect(np) + self.unconfig_sa(np) + self.unconfig_network(p) + + def test_tun_44_null(self): + """IPSEC interface IPv4 NULL auth/crypto""" + + n_pkts = 127 + p = copy.copy(self.ipv4_params) + + p.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t. + IPSEC_API_INTEG_ALG_NONE) + p.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t. + IPSEC_API_CRYPTO_ALG_NONE) + p.crypt_algo = "NULL" + p.auth_algo = "NULL" + + self.config_network(p) + self.config_sa_tun(p, + self.pg0.local_ip4, + self.pg0.remote_ip4) + self.config_protect(p) + + self.verify_tun_44(p, count=n_pkts) + + # teardown + self.unconfig_protect(p) + self.unconfig_sa(p) + self.unconfig_network(p) + + +class TemplateIpsecItf6(object): + """ IPsec Interface IPv6 """ + + encryption_type = ESP + tun6_encrypt_node_name = "esp6-encrypt-tun" + tun6_decrypt_node_name = "esp6-decrypt-tun" + tun6_input_node = "ipsec6-tun-input" + + def config_sa_tun(self, p, src, dst): + config_tun_params(p, self.encryption_type, None, src, dst) + + 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, + src, dst, + 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, + dst, src, + 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 = VppIpsecInterface(self) + + 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_host4, 32, + [VppRoutePath(p.tun_if.remote_ip4, + 0xffffffff)]) + r.add_vpp_config() + + 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 TestIpsecItf6(TemplateIpsec, + TemplateIpsecItf6, + IpsecTun6): + """ IPsec Interface IPv6 """ + + def setUp(self): + super(TestIpsecItf6, self).setUp() + + self.tun_if = self.pg0 + + def tearDown(self): + super(TestIpsecItf6, self).tearDown() + + def test_tun_44(self): + """IPSEC interface IPv6""" + + n_pkts = 127 + p = self.ipv6_params + + self.config_network(p) + self.config_sa_tun(p, + self.pg0.local_ip6, + self.pg0.remote_ip6) + self.config_protect(p) + + self.verify_tun_66(p, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], n_pkts) + + p.tun_if.admin_down() + self.verify_drop_tun_66(p, count=n_pkts) + p.tun_if.admin_up() + self.verify_tun_66(p, count=n_pkts) + + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], 3*n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], 2*n_pkts) + + # it's a v4 packet when its encrypted + self.tun6_encrypt_node_name = "esp4-encrypt-tun" + + self.verify_tun_46(p, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], 4*n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], 3*n_pkts) + + self.tun6_encrypt_node_name = "esp6-encrypt-tun" + + self.vapi.cli("clear interfaces") + + # 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.pg0.local_ip6, + self.pg0.remote_ip6) + self.config_protect(np) + self.unconfig_sa(p) + + self.verify_tun_66(np, count=n_pkts) + c = p.tun_if.get_rx_stats() + self.assertEqual(c['packets'], n_pkts) + c = p.tun_if.get_tx_stats() + self.assertEqual(c['packets'], n_pkts) + + # teardown + self.unconfig_protect(np) + self.unconfig_sa(np) + self.unconfig_network(p) + + +class TestIpsecMIfEsp4(TemplateIpsec, IpsecTun4): + """ Ipsec P2MP ESP v4 tests """ + tun4_encrypt_node_name = "esp4-encrypt-tun" + tun4_decrypt_node_name = "esp4-decrypt-tun" + encryption_type = ESP + + def gen_encrypt_pkts(self, p, 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.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=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[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: + self.assertEqual(rx[IP].tos, + VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF << 2) + pkt = sa.decrypt(rx[IP]) + if not pkt.haslayer(IP): + pkt = IP(pkt[Raw].load) + self.assert_packet_checksums_valid(pkt) + e = pkt[IP] + self.assertEqual(e[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 setUp(self): + super(TestIpsecMIfEsp4, self).setUp() + + N_NHS = 16 + self.tun_if = self.pg0 + p = self.ipv4_params + p.tun_if = VppIpsecInterface(self, + mode=(VppEnum.vl_api_tunnel_mode_t. + TUNNEL_API_MODE_MP)) + p.tun_if.add_vpp_config() + p.tun_if.admin_up() + p.tun_if.config_ip4() + p.tun_if.generate_remote_hosts(N_NHS) + self.pg0.generate_remote_hosts(N_NHS) + self.pg0.configure_ipv4_neighbors() + + # setup some SAs for several next-hops on the interface + self.multi_params = [] + + for ii in range(N_NHS): + 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_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_hosts[ii].ip4, + dscp=VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF) + 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_hosts[ii].ip4, + self.pg0.local_ip4, + dscp=VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF) + p.tun_sa_in.add_vpp_config() + + p.tun_protect = VppIpsecTunProtect( + self, + p.tun_if, + p.tun_sa_out, + [p.tun_sa_in], + nh=p.tun_if.remote_hosts[ii].ip4) + p.tun_protect.add_vpp_config() + config_tun_params(p, self.encryption_type, None, + self.pg0.local_ip4, + self.pg0.remote_hosts[ii].ip4) + self.multi_params.append(p) + + VppIpRoute(self, p.remote_tun_if_host, 32, + [VppRoutePath(p.tun_if.remote_hosts[ii].ip4, + p.tun_if.sw_if_index)]).add_vpp_config() + + p.tun_dst = self.pg0.remote_hosts[ii].ip4 + + def tearDown(self): + p = self.ipv4_params + p.tun_if.unconfig_ip4() + super(TestIpsecMIfEsp4, self).tearDown() + + def test_tun_44(self): + """P2MP IPSEC 44""" + N_PKTS = 63 + for p in self.multi_params: + self.verify_tun_44(p, count=N_PKTS) + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)