from util import ppp, ppc
from template_ipsec import TemplateIpsec
-from vpp_ipsec import VppIpsecSA, VppIpsecSpd, VppIpsecSpdEntry,\
- VppIpsecSpdItfBinding
+from vpp_ipsec import VppIpsecSA, VppIpsecSpd, VppIpsecSpdEntry, VppIpsecSpdItfBinding
from vpp_ip_route import VppIpRoute, VppRoutePath
from vpp_ip import DpoProto
from vpp_papi import VppEnum
class IPSecNATTestCase(TemplateIpsec):
- """ IPSec/NAT
+ """IPSec/NAT
TUNNEL MODE::
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()
+ VppIpsecSpdItfBinding(self, self.tun_spd, self.tun_if).add_vpp_config()
p = self.ipv4_params
self.config_esp_tun(p)
self.logger.info(self.vapi.ppcli("show ipsec all"))
d = DpoProto.DPO_PROTO_IP6 if p.is_ipv6 else 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()
+ 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(IPSecNATTestCase, self).tearDown()
def create_stream_plain(self, src_mac, dst_mac, src_ip, dst_ip):
return [
# TCP
- Ether(src=src_mac, dst=dst_mac) /
- IP(src=src_ip, dst=dst_ip) /
- TCP(sport=self.tcp_port_in, dport=20),
+ Ether(src=src_mac, dst=dst_mac)
+ / IP(src=src_ip, dst=dst_ip)
+ / TCP(sport=self.tcp_port_in, dport=20),
# UDP
- Ether(src=src_mac, dst=dst_mac) /
- IP(src=src_ip, dst=dst_ip) /
- UDP(sport=self.udp_port_in, dport=20),
+ Ether(src=src_mac, dst=dst_mac)
+ / IP(src=src_ip, dst=dst_ip)
+ / UDP(sport=self.udp_port_in, dport=20),
# ICMP
- Ether(src=src_mac, dst=dst_mac) /
- IP(src=src_ip, dst=dst_ip) /
- ICMP(id=self.icmp_id_in, type='echo-request')
+ Ether(src=src_mac, dst=dst_mac)
+ / IP(src=src_ip, dst=dst_ip)
+ / ICMP(id=self.icmp_id_in, type="echo-request"),
]
def create_stream_encrypted(self, src_mac, dst_mac, src_ip, dst_ip, sa):
return [
# TCP
- Ether(src=src_mac, dst=dst_mac) /
- sa.encrypt(IP(src=src_ip, dst=dst_ip) /
- TCP(dport=self.tcp_port_out, sport=20)),
+ Ether(src=src_mac, dst=dst_mac)
+ / sa.encrypt(
+ IP(src=src_ip, dst=dst_ip) / TCP(dport=self.tcp_port_out, sport=20)
+ ),
# UDP
- Ether(src=src_mac, dst=dst_mac) /
- sa.encrypt(IP(src=src_ip, dst=dst_ip) /
- UDP(dport=self.udp_port_out, sport=20)),
+ Ether(src=src_mac, dst=dst_mac)
+ / sa.encrypt(
+ IP(src=src_ip, dst=dst_ip) / UDP(dport=self.udp_port_out, sport=20)
+ ),
# ICMP
- Ether(src=src_mac, dst=dst_mac) /
- sa.encrypt(IP(src=src_ip, dst=dst_ip) /
- ICMP(id=self.icmp_id_out, type='echo-request'))
+ Ether(src=src_mac, dst=dst_mac)
+ / sa.encrypt(
+ IP(src=src_ip, dst=dst_ip)
+ / ICMP(id=self.icmp_id_out, type="echo-request")
+ ),
]
def verify_capture_plain(self, capture):
for packet in capture:
try:
self.assert_packet_checksums_valid(packet)
- self.assert_equal(packet[IP].src, self.tun_if.remote_ip4,
- "decrypted packet source address")
- self.assert_equal(packet[IP].dst, self.pg1.remote_ip4,
- "decrypted packet destination address")
+ self.assert_equal(
+ packet[IP].src,
+ self.tun_if.remote_ip4,
+ "decrypted packet source address",
+ )
+ self.assert_equal(
+ packet[IP].dst,
+ self.pg1.remote_ip4,
+ "decrypted packet destination address",
+ )
if packet.haslayer(TCP):
self.assertFalse(
packet.haslayer(UDP),
- "unexpected UDP header in decrypted packet")
- self.assert_equal(packet[TCP].dport, self.tcp_port_in,
- "decrypted packet TCP destination port")
+ "unexpected UDP header in decrypted packet",
+ )
+ self.assert_equal(
+ packet[TCP].dport,
+ self.tcp_port_in,
+ "decrypted packet TCP destination port",
+ )
elif packet.haslayer(UDP):
if packet[UDP].payload:
self.assertFalse(
packet[UDP][1].haslayer(UDP),
- "unexpected UDP header in decrypted packet")
- self.assert_equal(packet[UDP].dport, self.udp_port_in,
- "decrypted packet UDP destination port")
+ "unexpected UDP header in decrypted packet",
+ )
+ self.assert_equal(
+ packet[UDP].dport,
+ self.udp_port_in,
+ "decrypted packet UDP destination port",
+ )
else:
self.assertFalse(
packet.haslayer(UDP),
- "unexpected UDP header in decrypted packet")
- self.assert_equal(packet[ICMP].id, self.icmp_id_in,
- "decrypted packet ICMP ID")
+ "unexpected UDP header in decrypted packet",
+ )
+ self.assert_equal(
+ packet[ICMP].id, self.icmp_id_in, "decrypted packet ICMP ID"
+ )
except Exception:
- self.logger.error(
- ppp("Unexpected or invalid plain packet:", packet))
+ self.logger.error(ppp("Unexpected or invalid plain packet:", packet))
raise
def verify_capture_encrypted(self, capture, sa):
copy = packet.__class__(scapy.compat.raw(packet))
del copy[UDP].len
copy = packet.__class__(scapy.compat.raw(copy))
- self.assert_equal(packet[UDP].len, copy[UDP].len,
- "UDP header length")
+ self.assert_equal(packet[UDP].len, copy[UDP].len, "UDP header length")
self.assert_packet_checksums_valid(packet)
self.assertIn(ESP, packet[IP])
decrypt_pkt = sa.decrypt(packet[IP])
self.assert_packet_checksums_valid(decrypt_pkt)
- self.assert_equal(decrypt_pkt[IP].src, self.pg1.remote_ip4,
- "encrypted packet source address")
- self.assert_equal(decrypt_pkt[IP].dst, self.tun_if.remote_ip4,
- "encrypted packet destination address")
+ self.assert_equal(
+ decrypt_pkt[IP].src,
+ self.pg1.remote_ip4,
+ "encrypted packet source address",
+ )
+ self.assert_equal(
+ decrypt_pkt[IP].dst,
+ self.tun_if.remote_ip4,
+ "encrypted packet destination address",
+ )
except Exception:
self.logger.error(
- ppp("Unexpected or invalid encrypted packet:", packet))
+ ppp("Unexpected or invalid encrypted packet:", packet)
+ )
raise
def config_esp_tun(self, params):
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_UDP_ENCAP)
+ flags = VppEnum.vl_api_ipsec_sad_flags_t.IPSEC_API_SAD_FLAG_UDP_ENCAP
e = VppEnum.vl_api_ipsec_spd_action_t
- 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.pg1.remote_addr[addr_type],
- self.tun_if.remote_addr[addr_type],
- flags=flags).add_vpp_config()
- 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.pg1.remote_addr[addr_type],
- flags=flags).add_vpp_config()
+ 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.pg1.remote_addr[addr_type],
+ self.tun_if.remote_addr[addr_type],
+ flags=flags,
+ ).add_vpp_config()
+ 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.pg1.remote_addr[addr_type],
+ flags=flags,
+ ).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id,
- addr_any, addr_bcast,
- addr_any, addr_bcast,
- socket.IPPROTO_ESP).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id,
- addr_any, addr_bcast,
- addr_any, addr_bcast,
- socket.IPPROTO_ESP,
- is_outbound=0).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id,
- addr_any, addr_bcast,
- addr_any, addr_bcast,
- socket.IPPROTO_UDP,
- remote_port_start=4500,
- remote_port_stop=4500).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id,
- addr_any, addr_bcast,
- addr_any, addr_bcast,
- socket.IPPROTO_UDP,
- remote_port_start=4500,
- remote_port_stop=4500,
- is_outbound=0).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, vpp_tun_sa_id,
- self.tun_if.remote_addr[addr_type],
- self.tun_if.remote_addr[addr_type],
- 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).add_vpp_config()
- VppIpsecSpdEntry(self, self.tun_spd, scapy_tun_sa_id,
- self.pg1.remote_addr[addr_type],
- self.pg1.remote_addr[addr_type],
- self.tun_if.remote_addr[addr_type],
- self.tun_if.remote_addr[addr_type],
- 0, policy=e.IPSEC_API_SPD_ACTION_PROTECT,
- priority=10).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ scapy_tun_sa_id,
+ addr_any,
+ addr_bcast,
+ addr_any,
+ addr_bcast,
+ socket.IPPROTO_ESP,
+ ).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ scapy_tun_sa_id,
+ addr_any,
+ addr_bcast,
+ addr_any,
+ addr_bcast,
+ socket.IPPROTO_ESP,
+ is_outbound=0,
+ ).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ scapy_tun_sa_id,
+ addr_any,
+ addr_bcast,
+ addr_any,
+ addr_bcast,
+ socket.IPPROTO_UDP,
+ remote_port_start=4500,
+ remote_port_stop=4500,
+ ).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ scapy_tun_sa_id,
+ addr_any,
+ addr_bcast,
+ addr_any,
+ addr_bcast,
+ socket.IPPROTO_UDP,
+ remote_port_start=4500,
+ remote_port_stop=4500,
+ is_outbound=0,
+ ).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ vpp_tun_sa_id,
+ self.tun_if.remote_addr[addr_type],
+ self.tun_if.remote_addr[addr_type],
+ 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,
+ ).add_vpp_config()
+ VppIpsecSpdEntry(
+ self,
+ self.tun_spd,
+ scapy_tun_sa_id,
+ self.pg1.remote_addr[addr_type],
+ self.pg1.remote_addr[addr_type],
+ self.tun_if.remote_addr[addr_type],
+ self.tun_if.remote_addr[addr_type],
+ 0,
+ policy=e.IPSEC_API_SPD_ACTION_PROTECT,
+ priority=10,
+ ).add_vpp_config()
def test_ipsec_nat_tun(self):
- """ IPSec/NAT tunnel test case """
+ """IPSec/NAT tunnel test case"""
p = self.ipv4_params
- scapy_tun_sa = SecurityAssociation(ESP, spi=p.scapy_tun_spi,
- crypt_algo=p.crypt_algo,
- crypt_key=p.crypt_key,
- auth_algo=p.auth_algo,
- auth_key=p.auth_key,
- tunnel_header=IP(
- src=self.pg1.remote_ip4,
- dst=self.tun_if.remote_ip4),
- nat_t_header=UDP(
- sport=4500,
- dport=4500))
+ scapy_tun_sa = SecurityAssociation(
+ ESP,
+ spi=p.scapy_tun_spi,
+ crypt_algo=p.crypt_algo,
+ crypt_key=p.crypt_key,
+ auth_algo=p.auth_algo,
+ auth_key=p.auth_key,
+ tunnel_header=IP(src=self.pg1.remote_ip4, dst=self.tun_if.remote_ip4),
+ nat_t_header=UDP(sport=4500, dport=4500),
+ )
# in2out - from private network to public
pkts = self.create_stream_plain(
- self.pg1.remote_mac, self.pg1.local_mac,
- self.pg1.remote_ip4, self.tun_if.remote_ip4)
+ self.pg1.remote_mac,
+ self.pg1.local_mac,
+ self.pg1.remote_ip4,
+ self.tun_if.remote_ip4,
+ )
self.pg1.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.tun_if.get_capture(len(pkts))
self.verify_capture_encrypted(capture, scapy_tun_sa)
- vpp_tun_sa = SecurityAssociation(ESP,
- spi=p.vpp_tun_spi,
- crypt_algo=p.crypt_algo,
- crypt_key=p.crypt_key,
- auth_algo=p.auth_algo,
- auth_key=p.auth_key,
- tunnel_header=IP(
- src=self.tun_if.remote_ip4,
- dst=self.pg1.remote_ip4),
- nat_t_header=UDP(
- sport=4500,
- dport=4500))
+ vpp_tun_sa = SecurityAssociation(
+ ESP,
+ spi=p.vpp_tun_spi,
+ crypt_algo=p.crypt_algo,
+ crypt_key=p.crypt_key,
+ auth_algo=p.auth_algo,
+ auth_key=p.auth_key,
+ tunnel_header=IP(src=self.tun_if.remote_ip4, dst=self.pg1.remote_ip4),
+ nat_t_header=UDP(sport=4500, dport=4500),
+ )
# out2in - from public network to private
pkts = self.create_stream_encrypted(
- self.tun_if.remote_mac, self.tun_if.local_mac,
- self.tun_if.remote_ip4, self.pg1.remote_ip4, vpp_tun_sa)
+ self.tun_if.remote_mac,
+ self.tun_if.local_mac,
+ self.tun_if.remote_ip4,
+ self.pg1.remote_ip4,
+ vpp_tun_sa,
+ )
self.logger.info(ppc("Sending packets:", pkts))
self.tun_if.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
Code Review / vpp.git / blobdiff