import socket import unittest from scapy.layers.ipsec import ESP from scapy.layers.inet import UDP from framework import VppTestRunner from template_ipsec import IpsecTra46Tests, IpsecTun46Tests, TemplateIpsec, \ IpsecTcpTests, IpsecTun4Tests, IpsecTra4Tests, config_tra_params, \ IPsecIPv4Params, IPsecIPv6Params, \ IpsecTra4, IpsecTun4, IpsecTra6, IpsecTun6 from vpp_ipsec import VppIpsecSpd, VppIpsecSpdEntry, VppIpsecSA,\ VppIpsecSpdItfBinding from vpp_ip_route import VppIpRoute, VppRoutePath from vpp_ip import DpoProto from vpp_papi import VppEnum class ConfigIpsecESP(TemplateIpsec): encryption_type = ESP tra4_encrypt_node_name = "esp4-encrypt" tra4_decrypt_node_name = "esp4-decrypt" tra6_encrypt_node_name = "esp6-encrypt" tra6_decrypt_node_name = "esp6-decrypt" tun4_encrypt_node_name = "esp4-encrypt" tun4_decrypt_node_name = "esp4-decrypt" tun6_encrypt_node_name = "esp6-encrypt" tun6_decrypt_node_name = "esp6-decrypt" @classmethod def setUpClass(cls): super(ConfigIpsecESP, cls).setUpClass() @classmethod def tearDownClass(cls): super(ConfigIpsecESP, cls).tearDownClass() def setUp(self): super(ConfigIpsecESP, self).setUp() def tearDown(self): super(ConfigIpsecESP, self).tearDown() def config_network(self, params): self.net_objs = [] self.tun_if = self.pg0 self.tra_if = self.pg2 self.logger.info(self.vapi.ppcli("show int addr")) self.tra_spd = VppIpsecSpd(self, self.tra_spd_id) self.tra_spd.add_vpp_config() self.net_objs.append(self.tra_spd) self.tun_spd = VppIpsecSpd(self, self.tun_spd_id) self.tun_spd.add_vpp_config() self.net_objs.append(self.tun_spd) b = VppIpsecSpdItfBinding(self, self.tun_spd, self.tun_if) b.add_vpp_config() self.net_objs.append(b) b = VppIpsecSpdItfBinding(self, self.tra_spd, self.tra_if) b.add_vpp_config() self.net_objs.append(b) for p in params: self.config_esp_tra(p) config_tra_params(p, self.encryption_type) for p in params: self.config_esp_tun(p) for p in params: d = DpoProto.DPO_PROTO_IP6 if p.is_ipv6 else DpoProto.DPO_PROTO_IP4 r = VppIpRoute(self, p.remote_tun_if_host, p.addr_len, [VppRoutePath(self.tun_if.remote_addr[p.addr_type], 0xffffffff, proto=d)], is_ip6=p.is_ipv6) r.add_vpp_config() self.net_objs.append(r) self.logger.info(self.vapi.ppcli("show ipsec all")) def unconfig_network(self): for o in reversed(self.net_objs): o.remove_vpp_config() self.net_objs = [] def config_esp_tun(self, params): addr_type = params.addr_type scapy_tun_sa_id = params.scapy_tun_sa_id scapy_tun_spi = params.scapy_tun_spi vpp_tun_sa_id = params.vpp_tun_sa_id vpp_tun_spi = params.vpp_tun_spi auth_algo_vpp_id = params.auth_algo_vpp_id auth_key = params.auth_key crypt_algo_vpp_id = params.crypt_algo_vpp_id crypt_key = params.crypt_key remote_tun_if_host = params.remote_tun_if_host addr_any = params.addr_any addr_bcast = params.addr_bcast e = VppEnum.vl_api_ipsec_spd_action_t objs = [] params.tun_sa_in = VppIpsecSA(self, scapy_tun_sa_id, scapy_tun_spi, auth_algo_vpp_id, auth_key, crypt_algo_vpp_id, crypt_key, self.vpp_esp_protocol, self.tun_if.local_addr[addr_type], self.tun_if.remote_addr[addr_type]) params.tun_sa_out = VppIpsecSA(self, vpp_tun_sa_id, vpp_tun_spi, auth_algo_vpp_id, auth_key, crypt_algo_vpp_id, crypt_key, self.vpp_esp_protocol, self.tun_if.remote_addr[addr_type], self.tun_if.local_addr[addr_type]) objs.append(params.tun_sa_in) objs.append(params.tun_sa_out) params.spd_policy_in_any = VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id, addr_any, addr_bcast, addr_any, addr_bcast, socket.IPPROTO_ESP) params.spd_policy_out_any = VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id, addr_any, addr_bcast, addr_any, addr_bcast, socket.IPPROTO_ESP, is_outbound=0) objs.append(params.spd_policy_out_any) objs.append(params.spd_policy_in_any) objs.append(VppIpsecSpdEntry(self, self.tun_spd, vpp_tun_sa_id, remote_tun_if_host, remote_tun_if_host, self.pg1.remote_addr[addr_type], self.pg1.remote_addr[addr_type], 0, priority=10, policy=e.IPSEC_API_SPD_ACTION_PROTECT, is_outbound=0)) objs.append(VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id, self.pg1.remote_addr[addr_type], self.pg1.remote_addr[addr_type], remote_tun_if_host, remote_tun_if_host, 0, policy=e.IPSEC_API_SPD_ACTION_PROTECT, priority=10)) objs.append(VppIpsecSpdEntry(self, self.tun_spd, vpp_tun_sa_id, remote_tun_if_host, remote_tun_if_host, self.pg0.local_addr[addr_type], self.pg0.local_addr[addr_type], 0, priority=20, policy=e.IPSEC_API_SPD_ACTION_PROTECT, is_outbound=0)) objs.append(VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id, self.pg0.local_addr[addr_type], self.pg0.local_addr[addr_type], remote_tun_if_host, remote_tun_if_host, 0, policy=e.IPSEC_API_SPD_ACTION_PROTECT, priority=20)) for o in objs: o.add_vpp_config() self.net_objs = self.net_objs + objs def config_esp_tra(self, params): addr_type = params.addr_type scapy_tra_sa_id = params.scapy_tra_sa_id scapy_tra_spi = params.scapy_tra_spi vpp_tra_sa_id = params.vpp_tra_sa_id vpp_tra_spi = params.vpp_tra_spi auth_algo_vpp_id = params.auth_algo_vpp_id auth_key = params.auth_key crypt_algo_vpp_id = params.crypt_algo_vpp_id crypt_key = params.crypt_key addr_any = params.addr_any addr_bcast = params.addr_bcast flags = (VppEnum.vl_api_ipsec_sad_flags_t. IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY) e = VppEnum.vl_api_ipsec_spd_action_t flags = params.flags | flags objs = [] params.tra_sa_in = VppIpsecSA(self, scapy_tra_sa_id, scapy_tra_spi, auth_algo_vpp_id, auth_key, crypt_algo_vpp_id, crypt_key, self.vpp_esp_protocol, flags=flags) params.tra_sa_out = VppIpsecSA(self, vpp_tra_sa_id, vpp_tra_spi, auth_algo_vpp_id, auth_key, crypt_algo_vpp_id, crypt_key, self.vpp_esp_protocol, flags=flags) objs.append(params.tra_sa_in) objs.append(params.tra_sa_out) objs.append(VppIpsecSpdEntry(self, self.tra_spd, vpp_tra_sa_id, addr_any, addr_bcast, addr_any, addr_bcast, socket.IPPROTO_ESP)) objs.append(VppIpsecSpdEntry(self, self.tra_spd, vpp_tra_sa_id, addr_any, addr_bcast, addr_any, addr_bcast, socket.IPPROTO_ESP, is_outbound=0)) objs.append(VppIpsecSpdEntry(self, self.tra_spd, vpp_tra_sa_id, self.tra_if.local_addr[addr_type], self.tra_if.local_addr[addr_type], self.tra_if.remote_addr[addr_type], self.tra_if.remote_addr[addr_type], 0, priority=10, policy=e.IPSEC_API_SPD_ACTION_PROTECT, is_outbound=0)) objs.append(VppIpsecSpdEntry(self, self.tra_spd, scapy_tra_sa_id, self.tra_if.local_addr[addr_type], self.tra_if.local_addr[addr_type], self.tra_if.remote_addr[addr_type], self.tra_if.remote_addr[addr_type], 0, policy=e.IPSEC_API_SPD_ACTION_PROTECT, priority=10)) for o in objs: o.add_vpp_config() self.net_objs = self.net_objs + objs class TemplateIpsecEsp(ConfigIpsecESP): """ Basic test for ipsec esp sanity - tunnel and transport modes. Below 4 cases are covered as part of this test 1) ipsec esp v4 transport basic test - IPv4 Transport mode scenario using HMAC-SHA1-96 integrity algo 2) ipsec esp v4 transport burst test Above test for 257 pkts 3) ipsec esp 4o4 tunnel basic test - IPv4 Tunnel mode scenario using HMAC-SHA1-96 integrity algo 4) ipsec esp 4o4 tunnel burst test Above test for 257 pkts TRANSPORT MODE: --- encrypt --- |pg2| <-------> |VPP| --- decrypt --- TUNNEL MODE: --- encrypt --- plain --- |pg0| <------- |VPP| <------ |pg1| --- --- --- --- decrypt --- plain --- |pg0| -------> |VPP| ------> |pg1| --- --- --- """ @classmethod def setUpClass(cls): super(TemplateIpsecEsp, cls).setUpClass() @classmethod def tearDownClass(cls): super(TemplateIpsecEsp, cls).tearDownClass() def setUp(self): super(TemplateIpsecEsp, self).setUp() self.config_network(self.params.values()) def tearDown(self): self.unconfig_network() super(TemplateIpsecEsp, self).tearDown() class TestIpsecEsp1(TemplateIpsecEsp, IpsecTra46Tests, IpsecTun46Tests): """ Ipsec ESP - TUN & TRA tests """ pass class TestIpsecEsp2(TemplateIpsecEsp, IpsecTcpTests): """ Ipsec ESP - TCP tests """ pass class TemplateIpsecEspUdp(ConfigIpsecESP): """ UDP encapped ESP """ @classmethod def setUpClass(cls): super(TemplateIpsecEspUdp, cls).setUpClass() @classmethod def tearDownClass(cls): super(TemplateIpsecEspUdp, cls).tearDownClass() def setUp(self): super(TemplateIpsecEspUdp, self).setUp() self.net_objs = [] self.tun_if = self.pg0 self.tra_if = self.pg2 self.logger.info(self.vapi.ppcli("show int addr")) 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.tra_spd = VppIpsecSpd(self, self.tra_spd_id) self.tra_spd.add_vpp_config() VppIpsecSpdItfBinding(self, self.tra_spd, self.tra_if).add_vpp_config() self.config_esp_tra(p) config_tra_params(p, self.encryption_type) self.tun_spd = VppIpsecSpd(self, self.tun_spd_id) self.tun_spd.add_vpp_config() VppIpsecSpdItfBinding(self, self.tun_spd, self.tun_if).add_vpp_config() self.config_esp_tun(p) self.logger.info(self.vapi.ppcli("show ipsec")) d = DpoProto.DPO_PROTO_IP4 VppIpRoute(self, p.remote_tun_if_host, p.addr_len, [VppRoutePath(self.tun_if.remote_addr[p.addr_type], 0xffffffff, proto=d)]).add_vpp_config() def tearDown(self): super(TemplateIpsecEspUdp, self).tearDown() if not self.vpp_dead: self.vapi.cli("show hardware") class TestIpsecEspUdp(TemplateIpsecEspUdp, IpsecTra4Tests, IpsecTun4Tests): """ Ipsec NAT-T ESP UDP tests """ pass class TestIpsecEspAll(ConfigIpsecESP, IpsecTra4, IpsecTra6, IpsecTun4, IpsecTun6): """ Ipsec ESP all Algos """ def setUp(self): super(TestIpsecEspAll, self).setUp() def tearDown(self): super(TestIpsecEspAll, self).tearDown() def test_crypto_algs(self): """All engines AES-CBC-[128, 192, 256] w/o ESN""" # foreach VPP crypto engine engines = ["ia32", "openssl"] # foreach crypto algorithm algos = [{'vpp': VppEnum.vl_api_ipsec_crypto_alg_t. IPSEC_API_CRYPTO_ALG_AES_CBC_128, 'scapy': "AES-CBC", 'key': "JPjyOWBeVEQiMe7h"}, {'vpp': VppEnum.vl_api_ipsec_crypto_alg_t. IPSEC_API_CRYPTO_ALG_AES_CBC_192, 'scapy': "AES-CBC", 'key': "JPjyOWBeVEQiMe7hJPjyOWBe"}, {'vpp': VppEnum.vl_api_ipsec_crypto_alg_t. IPSEC_API_CRYPTO_ALG_AES_CBC_256, 'scapy': "AES-CBC", 'key': "JPjyOWBeVEQiMe7hJPjyOWBeVEQiMe7h"}] # bug found in VPP needs fixing with flag # (VppEnum.vl_api_ipsec_sad_flags_t.IPSEC_API_SAD_FLAG_USE_ESN) flags = [0] # # loop through the VPP engines # for engine in engines: self.vapi.cli("set crypto engine all %s" % engine) # # loop through each of the algorithms # for algo in algos: # with self.subTest(algo=algo['scapy']): for flag in flags: # # setup up the config paramters # self.ipv4_params = IPsecIPv4Params() self.ipv6_params = IPsecIPv6Params() self.params = {self.ipv4_params.addr_type: self.ipv4_params, self.ipv6_params.addr_type: self.ipv6_params} for _, p in self.params.items(): p.crypt_algo_vpp_id = algo['vpp'] p.crypt_algo = algo['scapy'] p.crypt_key = algo['key'] p.flags = p.flags | flag # # configure the SPDs. SAs, etc # self.config_network(self.params.values()) # # run some traffic. # An exhautsive 4o6, 6o4 is not necessary # for each algo # self.verify_tra_basic6(count=17) self.verify_tra_basic4(count=17) self.verify_tun_66(self.params[socket.AF_INET6], 17) self.verify_tun_44(self.params[socket.AF_INET], 17) # # remove the SPDs, SAs, etc # self.unconfig_network() if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)