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test_ipsec_tun_if_esp.py
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test_ipsec_tun_if_esp.py
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import unittest
import socket
import copy
from scapy.layers.ipsec import SecurityAssociation, ESP
from scapy.layers.l2 import Ether, GRE, Dot1Q
from scapy.packet import Raw, bind_layers
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
from framework import tag_fixme_vpp_workers
from framework import VppTestRunner
from template_ipsec import (
TemplateIpsec,
IpsecTun4Tests,
IpsecTun6Tests,
IpsecTun4,
IpsecTun6,
IpsecTcpTests,
mk_scapy_crypt_key,
IpsecTun6HandoffTests,
IpsecTun4HandoffTests,
config_tun_params,
)
from vpp_gre_interface import VppGreInterface
from vpp_ipip_tun_interface import VppIpIpTunInterface
from vpp_ip_route import (
VppIpRoute,
VppRoutePath,
DpoProto,
VppMplsLabel,
VppMplsTable,
VppMplsRoute,
FibPathProto,
)
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
from vpp_policer import PolicerAction, VppPolicer, Dir
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
if p.nat_header:
is_default_port = p.nat_header.dport == 4500
else:
is_default_port = True
if is_default_port:
outbound_nat_header = p.nat_header
else:
outbound_nat_header = UDP(sport=p.nat_header.dport, dport=p.nat_header.sport)
bind_layers(UDP, ESP, dport=p.nat_header.dport)
p.scapy_tun_sa = SecurityAssociation(
encryption_type,
spi=p.vpp_tun_spi,
crypt_algo=p.crypt_algo,
crypt_key=crypt_key,
auth_algo=p.auth_algo,
auth_key=p.auth_key,
tunnel_header=ip_class_by_addr_type[p.addr_type](src=p.tun_dst, dst=p.tun_src),
nat_t_header=outbound_nat_header,
esn_en=esn_en,
)
p.vpp_tun_sa = SecurityAssociation(
encryption_type,
spi=p.scapy_tun_spi,
crypt_algo=p.crypt_algo,
crypt_key=crypt_key,
auth_algo=p.auth_algo,
auth_key=p.auth_key,
tunnel_header=ip_class_by_addr_type[p.addr_type](dst=p.tun_dst, src=p.tun_src),
nat_t_header=p.nat_header,
esn_en=esn_en,
)
def config_tra_params(p, encryption_type, tun_if):
ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
esn_en = bool(
p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.IPSEC_API_SAD_FLAG_USE_ESN)
)
crypt_key = mk_scapy_crypt_key(p)
p.tun_dst = tun_if.remote_ip
p.tun_src = tun_if.local_ip
if p.nat_header:
is_default_port = p.nat_header.dport == 4500
else:
is_default_port = True
if is_default_port:
outbound_nat_header = p.nat_header
else:
outbound_nat_header = UDP(sport=p.nat_header.dport, dport=p.nat_header.sport)
bind_layers(UDP, ESP, dport=p.nat_header.dport)
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,
nat_t_header=outbound_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,
nat_t_header=p.nat_header,
)
class TemplateIpsec4TunProtect(object):
"""IPsec IPv4 Tunnel protect"""
encryption_type = ESP
tun4_encrypt_node_name = "esp4-encrypt-tun"
tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
tun4_input_node = "ipsec4-tun-input"
def config_sa_tra(self, p):
config_tun_params(p, self.encryption_type, p.tun_if)
p.tun_sa_out = VppIpsecSA(
self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
flags=p.flags,
)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(
self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
flags=p.flags,
)
p.tun_sa_in.add_vpp_config()
def config_sa_tun(self, p):
config_tun_params(p, self.encryption_type, p.tun_if)
p.tun_sa_out = VppIpsecSA(
self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.local_addr[p.addr_type],
self.tun_if.remote_addr[p.addr_type],
flags=p.flags,
)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(
self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
flags=p.flags,
)
p.tun_sa_in.add_vpp_config()
def config_protect(self, p):
p.tun_protect = VppIpsecTunProtect(self, p.tun_if, p.tun_sa_out, [p.tun_sa_in])
p.tun_protect.add_vpp_config()
def config_network(self, p):
if hasattr(p, "tun_dst"):
tun_dst = p.tun_dst
else:
tun_dst = self.pg0.remote_ip4
p.tun_if = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip4, tun_dst)
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 TemplateIpsec4TunIfEsp(TemplateIpsec4TunProtect, 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
self.config_network(p)
self.config_sa_tra(p)
self.config_protect(p)
def tearDown(self):
super(TemplateIpsec4TunIfEsp, self).tearDown()
class TemplateIpsec4TunIfEspUdp(TemplateIpsec4TunProtect, TemplateIpsec):
"""IPsec UDP tunnel interface tests"""
tun4_encrypt_node_name = "esp4-encrypt-tun"
tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
encryption_type = ESP
@classmethod
def setUpClass(cls):
super(TemplateIpsec4TunIfEspUdp, cls).setUpClass()
@classmethod
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, p.nat_header.sport)
self.assert_equal(rx[UDP].dport, p.nat_header.dport)
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 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,
udp_src=p.nat_header.sport,
udp_dst=p.nat_header.dport,
)
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=p.nat_header.sport,
udp_dst=p.nat_header.dport,
)
p.tun_sa_in.add_vpp_config()
def setUp(self):
super(TemplateIpsec4TunIfEspUdp, self).setUp()
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.tun_if = self.pg0
self.config_network(p)
self.config_sa_tra(p)
self.config_protect(p)
def tearDown(self):
super(TemplateIpsec4TunIfEspUdp, self).tearDown()
class TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests):
"""Ipsec ESP - TUN tests"""
tun4_encrypt_node_name = "esp4-encrypt-tun"
tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
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 setUp(self):
super(TestIpsec4TunIfEspUdp, self).setUp()
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(TestIpsec4TunIfEspUdpGCM, 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
class TestIpsec4TunIfEspUdpUpdate(TemplateIpsec4TunIfEspUdp, IpsecTun4Tests):
"""Ipsec ESP UDP update tests"""
tun4_input_node = "ipsec4-tun-input"
def setUp(self):
super(TestIpsec4TunIfEspUdpUpdate, self).setUp()
p = self.ipv4_params
p.nat_header = UDP(sport=6565, dport=7676)
config_tun_params(p, self.encryption_type, p.tun_if)
p.tun_sa_in.update_vpp_config(
udp_src=p.nat_header.dport, udp_dst=p.nat_header.sport
)
p.tun_sa_out.update_vpp_config(
udp_src=p.nat_header.sport, udp_dst=p.nat_header.dport
)
class TestIpsec4TunIfEsp2(TemplateIpsec4TunIfEsp, IpsecTcpTests):
"""Ipsec ESP - TCP tests"""
pass
class TemplateIpsec6TunProtect(object):
"""IPsec IPv6 Tunnel protect"""
def config_sa_tra(self, p):
config_tun_params(p, self.encryption_type, p.tun_if)
p.tun_sa_out = VppIpsecSA(
self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(
self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
)
p.tun_sa_in.add_vpp_config()
def config_sa_tun(self, p):
config_tun_params(p, self.encryption_type, p.tun_if)
p.tun_sa_out = VppIpsecSA(
self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.local_addr[p.addr_type],
self.tun_if.remote_addr[p.addr_type],
)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(
self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
)
p.tun_sa_in.add_vpp_config()
def config_protect(self, p):
p.tun_protect = VppIpsecTunProtect(self, p.tun_if, p.tun_sa_out, [p.tun_sa_in])
p.tun_protect.add_vpp_config()
def config_network(self, p):
if hasattr(p, "tun_dst"):
tun_dst = p.tun_dst
else:
tun_dst = self.pg0.remote_ip6
p.tun_if = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip6, tun_dst)
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 TemplateIpsec6TunIfEsp(TemplateIpsec6TunProtect, TemplateIpsec):
"""IPsec tunnel interface tests"""
encryption_type = ESP
def setUp(self):
super(TemplateIpsec6TunIfEsp, self).setUp()
self.tun_if = self.pg0
p = self.ipv6_params
self.config_network(p)
self.config_sa_tra(p)
self.config_protect(p)
def tearDown(self):
super(TemplateIpsec6TunIfEsp, self).tearDown()
class TemplateIpsec6TunIfEspUdp(TemplateIpsec6TunProtect, TemplateIpsec):
"""IPsec6 UDP tunnel interface tests"""
tun4_encrypt_node_name = "esp6-encrypt-tun"
tun4_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
encryption_type = ESP
@classmethod
def setUpClass(cls):
super(TemplateIpsec6TunIfEspUdp, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TemplateIpsec6TunIfEspUdp, 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, p.nat_header.sport)
self.assert_equal(rx[UDP].dport, p.nat_header.dport)
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, "1111:1111:1111:1111:1111:1111:1111:1111"
)
self.assert_equal(pkt[IP].src, self.pg1.remote_ip6)
except (IndexError, AssertionError):
self.logger.debug(ppp("Unexpected packet:", rx))
try:
self.logger.debug(ppp("Decrypted packet:", pkt))
except:
pass
raise
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,
udp_src=p.nat_header.sport,
udp_dst=p.nat_header.dport,
)
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=p.nat_header.sport,
udp_dst=p.nat_header.dport,
)
p.tun_sa_in.add_vpp_config()
def setUp(self):
super(TemplateIpsec6TunIfEspUdp, self).setUp()
p = self.ipv6_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.tun_if = self.pg0
self.config_network(p)
self.config_sa_tra(p)
self.config_protect(p)
def tearDown(self):
super(TemplateIpsec6TunIfEspUdp, self).tearDown()
class TestIpsec6TunIfEspUdp(TemplateIpsec6TunIfEspUdp, IpsecTun6Tests):
"""Ipsec ESP 6 UDP tests"""
tun6_input_node = "ipsec6-tun-input"
tun6_encrypt_node_name = "esp6-encrypt-tun"
tun6_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
def setUp(self):
super(TestIpsec6TunIfEspUdp, self).setUp()
def test_keepalive(self):
"""IPSEC6 NAT Keepalive"""
self.verify_keepalive(self.ipv6_params)
class TestIpsec6TunIfEspUdpGCM(TemplateIpsec6TunIfEspUdp, IpsecTun6Tests):
"""Ipsec ESP 6 UDP GCM tests"""
tun6_input_node = "ipsec6-tun-input"
tun6_encrypt_node_name = "esp6-encrypt-tun"
tun6_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
def setUp(self):
super(TestIpsec6TunIfEspUdpGCM, self).setUp()
p = self.ipv6_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
class TestIpsec6TunIfEsp1(TemplateIpsec6TunIfEsp, IpsecTun6Tests):
"""Ipsec ESP - TUN tests"""
tun6_encrypt_node_name = "esp6-encrypt-tun"
tun6_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
def test_tun_basic46(self):
"""ipsec 4o6 tunnel basic test"""
self.tun6_encrypt_node_name = "esp6-encrypt-tun"
self.verify_tun_46(self.params[socket.AF_INET6], count=1)
def test_tun_burst46(self):
"""ipsec 4o6 tunnel burst test"""
self.tun6_encrypt_node_name = "esp6-encrypt-tun"
self.verify_tun_46(self.params[socket.AF_INET6], count=257)
class TestIpsec6TunIfEspHandoff(TemplateIpsec6TunIfEsp, IpsecTun6HandoffTests):
"""Ipsec ESP 6 Handoff tests"""
tun6_encrypt_node_name = "esp6-encrypt-tun"
tun6_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
def test_tun_handoff_66_police(self):
"""ESP 6o6 tunnel with policer worker hand-off test"""
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
N_PKTS = 15
p = self.params[socket.AF_INET6]
action_tx = PolicerAction(
VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT, 0
)
policer = VppPolicer(
self,
"pol1",
80,
0,
1000,
0,
conform_action=action_tx,
exceed_action=action_tx,
violate_action=action_tx,
)
policer.add_vpp_config()
# Start policing on tun
policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, True)
for pol_bind in [1, 0]:
policer.bind_vpp_config(pol_bind, True)
# inject alternately on worker 0 and 1.
for worker in [0, 1, 0, 1]:
send_pkts = self.gen_encrypt_pkts6(
p,
p.scapy_tun_sa,
self.tun_if,
src=p.remote_tun_if_host,
dst=self.pg1.remote_ip6,
count=N_PKTS,
)
recv_pkts = self.send_and_expect(
self.tun_if, send_pkts, self.pg1, worker=worker
)
self.verify_decrypted6(p, recv_pkts)
self.logger.debug(self.vapi.cli("show trace max 100"))
stats = policer.get_stats()
stats0 = policer.get_stats(worker=0)
stats1 = policer.get_stats(worker=1)
if pol_bind == 1:
# First pass: Worker 1, should have done all the policing
self.assertEqual(stats, stats1)
# Worker 0, should have handed everything off
self.assertEqual(stats0["conform_packets"], 0)
self.assertEqual(stats0["exceed_packets"], 0)
self.assertEqual(stats0["violate_packets"], 0)
else:
# Second pass: both workers should have policed equal amounts
self.assertGreater(stats1["conform_packets"], 0)
self.assertEqual(stats1["exceed_packets"], 0)
self.assertGreater(stats1["violate_packets"], 0)
self.assertGreater(stats0["conform_packets"], 0)
self.assertEqual(stats0["exceed_packets"], 0)
self.assertGreater(stats0["violate_packets"], 0)
self.assertEqual(
stats0["conform_packets"] + stats0["violate_packets"],
stats1["conform_packets"] + stats1["violate_packets"],
)
policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, False)
policer.remove_vpp_config()
class TestIpsec4TunIfEspHandoff(TemplateIpsec4TunIfEsp, IpsecTun4HandoffTests):
"""Ipsec ESP 4 Handoff tests"""
tun4_encrypt_node_name = "esp4-encrypt-tun"
tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
def test_tun_handoff_44_police(self):
"""ESP 4o4 tunnel with policer worker hand-off test"""
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
N_PKTS = 15
p = self.params[socket.AF_INET]
action_tx = PolicerAction(
VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT, 0
)
policer = VppPolicer(
self,
"pol1",
80,
0,
1000,
0,
conform_action=action_tx,
exceed_action=action_tx,
violate_action=action_tx,
)
policer.add_vpp_config()
# Start policing on tun
policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, True)
for pol_bind in [1, 0]:
policer.bind_vpp_config(pol_bind, True)
# inject alternately on worker 0 and 1.
for worker in [0, 1, 0, 1]:
send_pkts = self.gen_encrypt_pkts(
p,
p.scapy_tun_sa,
self.tun_if,
src=p.remote_tun_if_host,
dst=self.pg1.remote_ip4,
count=N_PKTS,
)
recv_pkts = self.send_and_expect(
self.tun_if, send_pkts, self.pg1, worker=worker
)
self.verify_decrypted(p, recv_pkts)
self.logger.debug(self.vapi.cli("show trace max 100"))
stats = policer.get_stats()
stats0 = policer.get_stats(worker=0)
stats1 = policer.get_stats(worker=1)
if pol_bind == 1:
# First pass: Worker 1, should have done all the policing
self.assertEqual(stats, stats1)
# Worker 0, should have handed everything off
self.assertEqual(stats0["conform_packets"], 0)
self.assertEqual(stats0["exceed_packets"], 0)
self.assertEqual(stats0["violate_packets"], 0)
else:
# Second pass: both workers should have policed equal amounts
self.assertGreater(stats1["conform_packets"], 0)
self.assertEqual(stats1["exceed_packets"], 0)
self.assertGreater(stats1["violate_packets"], 0)
self.assertGreater(stats0["conform_packets"], 0)
self.assertEqual(stats0["exceed_packets"], 0)
self.assertGreater(stats0["violate_packets"], 0)
self.assertEqual(
stats0["conform_packets"] + stats0["violate_packets"],
stats1["conform_packets"] + stats1["violate_packets"],
)
policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, False)
policer.remove_vpp_config()
@tag_fixme_vpp_workers
class TestIpsec4MultiTunIfEsp(TemplateIpsec4TunProtect, TemplateIpsec, IpsecTun4):
"""IPsec IPv4 Multi Tunnel interface"""
encryption_type = ESP
tun4_encrypt_node_name = "esp4-encrypt-tun"
tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
def setUp(self):
super(TestIpsec4MultiTunIfEsp, self).setUp()
self.tun_if = self.pg0
self.multi_params = []
self.pg0.generate_remote_hosts(10)
self.pg0.configure_ipv4_neighbors()
for ii in range(10):
p = copy.copy(self.ipv4_params)
p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
p.scapy_tun_spi = p.scapy_tun_spi + ii
p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
p.vpp_tun_spi = p.vpp_tun_spi + ii
p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
p.tun_dst = self.pg0.remote_hosts[ii].ip4
self.multi_params.append(p)
self.config_network(p)
self.config_sa_tra(p)
self.config_protect(p)
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)
self.assertEqual(p.tun_if.get_rx_stats(), 127)
self.assertEqual(p.tun_if.get_tx_stats(), 127)
def test_tun_rr_44(self):
"""Round-robin packets acrros multiple interface"""
tx = []
for p in self.multi_params:
tx = tx + self.gen_encrypt_pkts(
p,
p.scapy_tun_sa,
self.tun_if,
src=p.remote_tun_if_host,
dst=self.pg1.remote_ip4,
)
rxs = self.send_and_expect(self.tun_if, tx, self.pg1)
for rx, p in zip(rxs, self.multi_params):
self.verify_decrypted(p, [rx])
tx = []
for p in self.multi_params:
tx = tx + self.gen_pkts(
self.pg1, src=self.pg1.remote_ip4, dst=p.remote_tun_if_host
)
rxs = self.send_and_expect(self.pg1, tx, self.tun_if)
for rx, p in zip(rxs, self.multi_params):
self.verify_encrypted(p, p.vpp_tun_sa, [rx])
class TestIpsec4TunIfEspAll(TemplateIpsec4TunProtect, 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", "esp4-decrypt-tun-post"]
def setUp(self):
super(TestIpsec4TunIfEspAll, self).setUp()
self.tun_if = self.pg0
p = self.ipv4_params
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_network(p)
self.unconfig_sa(p)
super(TestIpsec4TunIfEspAll, self).tearDown()
def rekey(self, p):
#
# change the key and the SPI
#
np = copy.copy(p)
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