vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2017-10-15	Revert "Enforce FIB table creation before use"	Florin Coras	1	-0/+3
2017-10-14	Source Lookup progammable via API	Neale Ranns	1	-0/+4
2017-10-13	Enforce FIB table creation before use	Neale Ranns	1	-3/+0
2017-10-10	punt and drop features:	Neale Ranns	1	-0/+36
2017-10-09	vppapigen: support per-file (major,minor,patch) version stamps	Dave Barach	1	-0/+2
2017-10-05	Distributed Virtual Router Support	Neale Ranns	1	-0/+1
2017-09-13	Add a name to the creation of an IP and MPLS table	Neale Ranns	1	-3/+9
2017-08-14	FIB table add/delete API only	Neale Ranns	1	-0/+18
2017-07-18	FIB path preference	Neale Ranns	1	-1/+4
2017-04-25	"autoreply" flag: autogenerate standard xxx_reply_t messages	Dave Barach	1	-99/+9
2017-04-07	MPLS Mcast	Neale Ranns	1	-0/+3
2017-03-08	API change (only) to not create a FIB table entry when adding a neighbor entry	Neale Ranns	1	-1/+6
2017-03-08	Proxy ND (RFC4389 - or a sub-set thereof). This allows the 'emulation' of bri...	Neale Ranns	1	-0/+50
2017-03-03	IPv6 RA improvements	Neale Ranns	1	-11/+25
2017-03-02	Remove the unused VRF ID parameter from the IP neighbour Add/Del API	Neale Ranns	1	-2/+0
2017-02-20	Python test IP and MPLS objects conform to infra.	Neale Ranns	1	-0/+56
2017-02-13	Augment IP_DETAILS, IP_ADDRESS_DETAILS with a few context fields.	Jon Loeliger	1	-0/+3
2017-01-27	IP Multicast FIB (mfib)	Neale Ranns	1	-0/+53
2017-01-11	VPP-575 : Inconsistency in flag values for neighbors dump	Pavel Kotucek	1	-1/+1
2017-01-10	IPv6 NS RS tests and fixes	Neale Ranns	1	-2/+0
2016-12-28	Reorganize source tree to use single autotools instance	Damjan Marion	1	-0/+434

#!/usr/bin/env python import socket from scapy.layers.l2 import Ether from scapy.layers.inet import ICMP, IP, TCP, UDP from scapy.layers.ipsec import SecurityAssociation, ESP from util import ppp, ppc from template_ipsec import TemplateIpsec 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 TUNNEL MODE: public network | private network --- encrypt --- plain --- |pg0| <------- |VPP| <------ |pg1| --- --- --- --- decrypt --- plain --- |pg0| -------> |VPP| ------> |pg1| --- --- --- """ tcp_port_in = 6303 tcp_port_out = 6303 udp_port_in = 6304 udp_port_out = 6304 icmp_id_in = 6305 icmp_id_out = 6305 def setUp(self): super(IPSecNATTestCase, self).setUp() self.tun_if = self.pg0 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() p = self.ipv4_params self.config_esp_tun(p) self.logger.info(self.vapi.ppcli("show ipsec")) 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)], is_ip6=p.is_ipv6).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), # UDP 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') ] 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)), # 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)), # 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')) ] 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") 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") 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") 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") except Exception: self.logger.error( ppp("Unexpected or invalid plain packet:", packet)) raise def verify_capture_encrypted(self, capture, sa): for packet in capture: try: copy = packet.__class__(str(packet)) del copy[UDP].len copy = packet.__class__(str(copy)) 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") except Exception: self.logger.error( ppp("Unexpected or invalid encrypted packet:", packet)) raise 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 addr_any = params.addr_any addr_bcast = params.addr_bcast 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() 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 """ 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)) # 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.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)) # 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.logger.info(ppc("Sending packets:", pkts)) self.tun_if.add_stream(pkts) self.pg_enable_capture(self.pg_interfaces) self.pg_start() capture = self.pg1.get_capture(len(pkts)) self.verify_capture_plain(capture)