Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | import socket |
| 4 | import unittest |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 5 | import struct |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 6 | import StringIO |
| 7 | import random |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 8 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 9 | from framework import VppTestCase, VppTestRunner, running_extended_tests |
Matus Fabian | 8ebe625 | 2017-11-06 05:04:53 -0800 | [diff] [blame] | 10 | from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 11 | from scapy.layers.inet import IP, TCP, UDP, ICMP |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 12 | from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 13 | from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 14 | from scapy.layers.inet6 import ICMPv6DestUnreach, IPerror6, IPv6ExtHdrFragment |
Matus Fabian | 328dbc8 | 2017-06-19 04:28:04 -0700 | [diff] [blame] | 15 | from scapy.layers.l2 import Ether, ARP, GRE |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 16 | from scapy.data import IP_PROTOS |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 17 | from scapy.packet import bind_layers, Raw |
| 18 | from scapy.all import fragment6 |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 19 | from util import ppp |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 20 | from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 21 | from time import sleep |
Matus Fabian | 704018c | 2017-09-04 02:17:18 -0700 | [diff] [blame] | 22 | from util import ip4_range |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 23 | from util import mactobinary |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 24 | |
| 25 | |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 26 | class MethodHolder(VppTestCase): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 27 | """ NAT create capture and verify method holder """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 28 | |
| 29 | @classmethod |
| 30 | def setUpClass(cls): |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 31 | super(MethodHolder, cls).setUpClass() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 32 | |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 33 | def tearDown(self): |
| 34 | super(MethodHolder, self).tearDown() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 35 | |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 36 | def check_ip_checksum(self, pkt): |
| 37 | """ |
| 38 | Check IP checksum of the packet |
| 39 | |
| 40 | :param pkt: Packet to check IP checksum |
| 41 | """ |
| 42 | new = pkt.__class__(str(pkt)) |
| 43 | del new['IP'].chksum |
| 44 | new = new.__class__(str(new)) |
| 45 | self.assertEqual(new['IP'].chksum, pkt['IP'].chksum) |
| 46 | |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 47 | def check_tcp_checksum(self, pkt): |
| 48 | """ |
| 49 | Check TCP checksum in IP packet |
| 50 | |
| 51 | :param pkt: Packet to check TCP checksum |
| 52 | """ |
| 53 | new = pkt.__class__(str(pkt)) |
| 54 | del new['TCP'].chksum |
| 55 | new = new.__class__(str(new)) |
| 56 | self.assertEqual(new['TCP'].chksum, pkt['TCP'].chksum) |
| 57 | |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 58 | def check_udp_checksum(self, pkt): |
| 59 | """ |
| 60 | Check UDP checksum in IP packet |
| 61 | |
| 62 | :param pkt: Packet to check UDP checksum |
| 63 | """ |
| 64 | new = pkt.__class__(str(pkt)) |
| 65 | del new['UDP'].chksum |
| 66 | new = new.__class__(str(new)) |
| 67 | self.assertEqual(new['UDP'].chksum, pkt['UDP'].chksum) |
| 68 | |
| 69 | def check_icmp_errror_embedded(self, pkt): |
| 70 | """ |
| 71 | Check ICMP error embeded packet checksum |
| 72 | |
| 73 | :param pkt: Packet to check ICMP error embeded packet checksum |
| 74 | """ |
| 75 | if pkt.haslayer(IPerror): |
| 76 | new = pkt.__class__(str(pkt)) |
| 77 | del new['IPerror'].chksum |
| 78 | new = new.__class__(str(new)) |
| 79 | self.assertEqual(new['IPerror'].chksum, pkt['IPerror'].chksum) |
| 80 | |
| 81 | if pkt.haslayer(TCPerror): |
| 82 | new = pkt.__class__(str(pkt)) |
| 83 | del new['TCPerror'].chksum |
| 84 | new = new.__class__(str(new)) |
| 85 | self.assertEqual(new['TCPerror'].chksum, pkt['TCPerror'].chksum) |
| 86 | |
| 87 | if pkt.haslayer(UDPerror): |
| 88 | if pkt['UDPerror'].chksum != 0: |
| 89 | new = pkt.__class__(str(pkt)) |
| 90 | del new['UDPerror'].chksum |
| 91 | new = new.__class__(str(new)) |
| 92 | self.assertEqual(new['UDPerror'].chksum, |
| 93 | pkt['UDPerror'].chksum) |
| 94 | |
| 95 | if pkt.haslayer(ICMPerror): |
| 96 | del new['ICMPerror'].chksum |
| 97 | new = new.__class__(str(new)) |
| 98 | self.assertEqual(new['ICMPerror'].chksum, pkt['ICMPerror'].chksum) |
| 99 | |
| 100 | def check_icmp_checksum(self, pkt): |
| 101 | """ |
| 102 | Check ICMP checksum in IPv4 packet |
| 103 | |
| 104 | :param pkt: Packet to check ICMP checksum |
| 105 | """ |
| 106 | new = pkt.__class__(str(pkt)) |
| 107 | del new['ICMP'].chksum |
| 108 | new = new.__class__(str(new)) |
| 109 | self.assertEqual(new['ICMP'].chksum, pkt['ICMP'].chksum) |
| 110 | if pkt.haslayer(IPerror): |
| 111 | self.check_icmp_errror_embedded(pkt) |
| 112 | |
| 113 | def check_icmpv6_checksum(self, pkt): |
| 114 | """ |
| 115 | Check ICMPv6 checksum in IPv4 packet |
| 116 | |
| 117 | :param pkt: Packet to check ICMPv6 checksum |
| 118 | """ |
| 119 | new = pkt.__class__(str(pkt)) |
| 120 | if pkt.haslayer(ICMPv6DestUnreach): |
| 121 | del new['ICMPv6DestUnreach'].cksum |
| 122 | new = new.__class__(str(new)) |
| 123 | self.assertEqual(new['ICMPv6DestUnreach'].cksum, |
| 124 | pkt['ICMPv6DestUnreach'].cksum) |
| 125 | self.check_icmp_errror_embedded(pkt) |
| 126 | if pkt.haslayer(ICMPv6EchoRequest): |
| 127 | del new['ICMPv6EchoRequest'].cksum |
| 128 | new = new.__class__(str(new)) |
| 129 | self.assertEqual(new['ICMPv6EchoRequest'].cksum, |
| 130 | pkt['ICMPv6EchoRequest'].cksum) |
| 131 | if pkt.haslayer(ICMPv6EchoReply): |
| 132 | del new['ICMPv6EchoReply'].cksum |
| 133 | new = new.__class__(str(new)) |
| 134 | self.assertEqual(new['ICMPv6EchoReply'].cksum, |
| 135 | pkt['ICMPv6EchoReply'].cksum) |
| 136 | |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 137 | def create_stream_in(self, in_if, out_if, dst_ip=None, ttl=64): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 138 | """ |
| 139 | Create packet stream for inside network |
| 140 | |
| 141 | :param in_if: Inside interface |
| 142 | :param out_if: Outside interface |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 143 | :param dst_ip: Destination address |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 144 | :param ttl: TTL of generated packets |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 145 | """ |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 146 | if dst_ip is None: |
| 147 | dst_ip = out_if.remote_ip4 |
| 148 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 149 | pkts = [] |
| 150 | # TCP |
| 151 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 152 | IP(src=in_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 153 | TCP(sport=self.tcp_port_in, dport=20)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 154 | pkts.append(p) |
| 155 | |
| 156 | # UDP |
| 157 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 158 | IP(src=in_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 159 | UDP(sport=self.udp_port_in, dport=20)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 160 | pkts.append(p) |
| 161 | |
| 162 | # ICMP |
| 163 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 164 | IP(src=in_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 165 | ICMP(id=self.icmp_id_in, type='echo-request')) |
| 166 | pkts.append(p) |
| 167 | |
| 168 | return pkts |
| 169 | |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 170 | def compose_ip6(self, ip4, pref, plen): |
| 171 | """ |
| 172 | Compose IPv4-embedded IPv6 addresses |
| 173 | |
| 174 | :param ip4: IPv4 address |
| 175 | :param pref: IPv6 prefix |
| 176 | :param plen: IPv6 prefix length |
| 177 | :returns: IPv4-embedded IPv6 addresses |
| 178 | """ |
| 179 | pref_n = list(socket.inet_pton(socket.AF_INET6, pref)) |
| 180 | ip4_n = list(socket.inet_pton(socket.AF_INET, ip4)) |
| 181 | if plen == 32: |
| 182 | pref_n[4] = ip4_n[0] |
| 183 | pref_n[5] = ip4_n[1] |
| 184 | pref_n[6] = ip4_n[2] |
| 185 | pref_n[7] = ip4_n[3] |
| 186 | elif plen == 40: |
| 187 | pref_n[5] = ip4_n[0] |
| 188 | pref_n[6] = ip4_n[1] |
| 189 | pref_n[7] = ip4_n[2] |
| 190 | pref_n[9] = ip4_n[3] |
| 191 | elif plen == 48: |
| 192 | pref_n[6] = ip4_n[0] |
| 193 | pref_n[7] = ip4_n[1] |
| 194 | pref_n[9] = ip4_n[2] |
| 195 | pref_n[10] = ip4_n[3] |
| 196 | elif plen == 56: |
| 197 | pref_n[7] = ip4_n[0] |
| 198 | pref_n[9] = ip4_n[1] |
| 199 | pref_n[10] = ip4_n[2] |
| 200 | pref_n[11] = ip4_n[3] |
| 201 | elif plen == 64: |
| 202 | pref_n[9] = ip4_n[0] |
| 203 | pref_n[10] = ip4_n[1] |
| 204 | pref_n[11] = ip4_n[2] |
| 205 | pref_n[12] = ip4_n[3] |
| 206 | elif plen == 96: |
| 207 | pref_n[12] = ip4_n[0] |
| 208 | pref_n[13] = ip4_n[1] |
| 209 | pref_n[14] = ip4_n[2] |
| 210 | pref_n[15] = ip4_n[3] |
| 211 | return socket.inet_ntop(socket.AF_INET6, ''.join(pref_n)) |
| 212 | |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 213 | def extract_ip4(self, ip6, plen): |
| 214 | """ |
| 215 | Extract IPv4 address embedded in IPv6 addresses |
| 216 | |
| 217 | :param ip6: IPv6 address |
| 218 | :param plen: IPv6 prefix length |
| 219 | :returns: extracted IPv4 address |
| 220 | """ |
| 221 | ip6_n = list(socket.inet_pton(socket.AF_INET6, ip6)) |
| 222 | ip4_n = [None] * 4 |
| 223 | if plen == 32: |
| 224 | ip4_n[0] = ip6_n[4] |
| 225 | ip4_n[1] = ip6_n[5] |
| 226 | ip4_n[2] = ip6_n[6] |
| 227 | ip4_n[3] = ip6_n[7] |
| 228 | elif plen == 40: |
| 229 | ip4_n[0] = ip6_n[5] |
| 230 | ip4_n[1] = ip6_n[6] |
| 231 | ip4_n[2] = ip6_n[7] |
| 232 | ip4_n[3] = ip6_n[9] |
| 233 | elif plen == 48: |
| 234 | ip4_n[0] = ip6_n[6] |
| 235 | ip4_n[1] = ip6_n[7] |
| 236 | ip4_n[2] = ip6_n[9] |
| 237 | ip4_n[3] = ip6_n[10] |
| 238 | elif plen == 56: |
| 239 | ip4_n[0] = ip6_n[7] |
| 240 | ip4_n[1] = ip6_n[9] |
| 241 | ip4_n[2] = ip6_n[10] |
| 242 | ip4_n[3] = ip6_n[11] |
| 243 | elif plen == 64: |
| 244 | ip4_n[0] = ip6_n[9] |
| 245 | ip4_n[1] = ip6_n[10] |
| 246 | ip4_n[2] = ip6_n[11] |
| 247 | ip4_n[3] = ip6_n[12] |
| 248 | elif plen == 96: |
| 249 | ip4_n[0] = ip6_n[12] |
| 250 | ip4_n[1] = ip6_n[13] |
| 251 | ip4_n[2] = ip6_n[14] |
| 252 | ip4_n[3] = ip6_n[15] |
| 253 | return socket.inet_ntop(socket.AF_INET, ''.join(ip4_n)) |
| 254 | |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 255 | def create_stream_in_ip6(self, in_if, out_if, hlim=64, pref=None, plen=0): |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 256 | """ |
| 257 | Create IPv6 packet stream for inside network |
| 258 | |
| 259 | :param in_if: Inside interface |
| 260 | :param out_if: Outside interface |
| 261 | :param ttl: Hop Limit of generated packets |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 262 | :param pref: NAT64 prefix |
| 263 | :param plen: NAT64 prefix length |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 264 | """ |
| 265 | pkts = [] |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 266 | if pref is None: |
| 267 | dst = ''.join(['64:ff9b::', out_if.remote_ip4]) |
| 268 | else: |
| 269 | dst = self.compose_ip6(out_if.remote_ip4, pref, plen) |
| 270 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 271 | # TCP |
| 272 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 273 | IPv6(src=in_if.remote_ip6, dst=dst, hlim=hlim) / |
| 274 | TCP(sport=self.tcp_port_in, dport=20)) |
| 275 | pkts.append(p) |
| 276 | |
| 277 | # UDP |
| 278 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 279 | IPv6(src=in_if.remote_ip6, dst=dst, hlim=hlim) / |
| 280 | UDP(sport=self.udp_port_in, dport=20)) |
| 281 | pkts.append(p) |
| 282 | |
| 283 | # ICMP |
| 284 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 285 | IPv6(src=in_if.remote_ip6, dst=dst, hlim=hlim) / |
| 286 | ICMPv6EchoRequest(id=self.icmp_id_in)) |
| 287 | pkts.append(p) |
| 288 | |
| 289 | return pkts |
| 290 | |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 291 | def create_stream_out(self, out_if, dst_ip=None, ttl=64, |
| 292 | use_inside_ports=False): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 293 | """ |
| 294 | Create packet stream for outside network |
| 295 | |
| 296 | :param out_if: Outside interface |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 297 | :param dst_ip: Destination IP address (Default use global NAT address) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 298 | :param ttl: TTL of generated packets |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 299 | :param use_inside_ports: Use inside NAT ports as destination ports |
| 300 | instead of outside ports |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 301 | """ |
| 302 | if dst_ip is None: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 303 | dst_ip = self.nat_addr |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 304 | if not use_inside_ports: |
| 305 | tcp_port = self.tcp_port_out |
| 306 | udp_port = self.udp_port_out |
| 307 | icmp_id = self.icmp_id_out |
| 308 | else: |
| 309 | tcp_port = self.tcp_port_in |
| 310 | udp_port = self.udp_port_in |
| 311 | icmp_id = self.icmp_id_in |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 312 | pkts = [] |
| 313 | # TCP |
| 314 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 315 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 316 | TCP(dport=tcp_port, sport=20)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 317 | pkts.append(p) |
| 318 | |
| 319 | # UDP |
| 320 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 321 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 322 | UDP(dport=udp_port, sport=20)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 323 | pkts.append(p) |
| 324 | |
| 325 | # ICMP |
| 326 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 327 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 328 | ICMP(id=icmp_id, type='echo-reply')) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 329 | pkts.append(p) |
| 330 | |
| 331 | return pkts |
| 332 | |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 333 | def create_stream_out_ip6(self, out_if, src_ip, dst_ip, hl=64): |
| 334 | """ |
| 335 | Create packet stream for outside network |
| 336 | |
| 337 | :param out_if: Outside interface |
| 338 | :param dst_ip: Destination IP address (Default use global NAT address) |
| 339 | :param hl: HL of generated packets |
| 340 | """ |
| 341 | pkts = [] |
| 342 | # TCP |
| 343 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 344 | IPv6(src=src_ip, dst=dst_ip, hlim=hl) / |
| 345 | TCP(dport=self.tcp_port_out, sport=20)) |
| 346 | pkts.append(p) |
| 347 | |
| 348 | # UDP |
| 349 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 350 | IPv6(src=src_ip, dst=dst_ip, hlim=hl) / |
| 351 | UDP(dport=self.udp_port_out, sport=20)) |
| 352 | pkts.append(p) |
| 353 | |
| 354 | # ICMP |
| 355 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 356 | IPv6(src=src_ip, dst=dst_ip, hlim=hl) / |
| 357 | ICMPv6EchoReply(id=self.icmp_id_out)) |
| 358 | pkts.append(p) |
| 359 | |
| 360 | return pkts |
| 361 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 362 | def verify_capture_out(self, capture, nat_ip=None, same_port=False, |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 363 | packet_num=3, dst_ip=None, is_ip6=False): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 364 | """ |
| 365 | Verify captured packets on outside network |
| 366 | |
| 367 | :param capture: Captured packets |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 368 | :param nat_ip: Translated IP address (Default use global NAT address) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 369 | :param same_port: Sorce port number is not translated (Default False) |
| 370 | :param packet_num: Expected number of packets (Default 3) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 371 | :param dst_ip: Destination IP address (Default do not verify) |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 372 | :param is_ip6: If L3 protocol is IPv6 (Default False) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 373 | """ |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 374 | if is_ip6: |
| 375 | IP46 = IPv6 |
| 376 | ICMP46 = ICMPv6EchoRequest |
| 377 | else: |
| 378 | IP46 = IP |
| 379 | ICMP46 = ICMP |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 380 | if nat_ip is None: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 381 | nat_ip = self.nat_addr |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 382 | self.assertEqual(packet_num, len(capture)) |
| 383 | for packet in capture: |
| 384 | try: |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 385 | if not is_ip6: |
| 386 | self.check_ip_checksum(packet) |
| 387 | self.assertEqual(packet[IP46].src, nat_ip) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 388 | if dst_ip is not None: |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 389 | self.assertEqual(packet[IP46].dst, dst_ip) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 390 | if packet.haslayer(TCP): |
| 391 | if same_port: |
| 392 | self.assertEqual(packet[TCP].sport, self.tcp_port_in) |
| 393 | else: |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 394 | self.assertNotEqual( |
| 395 | packet[TCP].sport, self.tcp_port_in) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 396 | self.tcp_port_out = packet[TCP].sport |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 397 | self.check_tcp_checksum(packet) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 398 | elif packet.haslayer(UDP): |
| 399 | if same_port: |
| 400 | self.assertEqual(packet[UDP].sport, self.udp_port_in) |
| 401 | else: |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 402 | self.assertNotEqual( |
| 403 | packet[UDP].sport, self.udp_port_in) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 404 | self.udp_port_out = packet[UDP].sport |
| 405 | else: |
| 406 | if same_port: |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 407 | self.assertEqual(packet[ICMP46].id, self.icmp_id_in) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 408 | else: |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 409 | self.assertNotEqual(packet[ICMP46].id, self.icmp_id_in) |
| 410 | self.icmp_id_out = packet[ICMP46].id |
| 411 | if is_ip6: |
| 412 | self.check_icmpv6_checksum(packet) |
| 413 | else: |
| 414 | self.check_icmp_checksum(packet) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 415 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 416 | self.logger.error(ppp("Unexpected or invalid packet " |
| 417 | "(outside network):", packet)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 418 | raise |
| 419 | |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 420 | def verify_capture_out_ip6(self, capture, nat_ip, same_port=False, |
| 421 | packet_num=3, dst_ip=None): |
| 422 | """ |
| 423 | Verify captured packets on outside network |
| 424 | |
| 425 | :param capture: Captured packets |
| 426 | :param nat_ip: Translated IP address |
| 427 | :param same_port: Sorce port number is not translated (Default False) |
| 428 | :param packet_num: Expected number of packets (Default 3) |
| 429 | :param dst_ip: Destination IP address (Default do not verify) |
| 430 | """ |
| 431 | return self.verify_capture_out(capture, nat_ip, same_port, packet_num, |
| 432 | dst_ip, True) |
| 433 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 434 | def verify_capture_in(self, capture, in_if, packet_num=3): |
| 435 | """ |
| 436 | Verify captured packets on inside network |
| 437 | |
| 438 | :param capture: Captured packets |
| 439 | :param in_if: Inside interface |
| 440 | :param packet_num: Expected number of packets (Default 3) |
| 441 | """ |
| 442 | self.assertEqual(packet_num, len(capture)) |
| 443 | for packet in capture: |
| 444 | try: |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 445 | self.check_ip_checksum(packet) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 446 | self.assertEqual(packet[IP].dst, in_if.remote_ip4) |
| 447 | if packet.haslayer(TCP): |
| 448 | self.assertEqual(packet[TCP].dport, self.tcp_port_in) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 449 | self.check_tcp_checksum(packet) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 450 | elif packet.haslayer(UDP): |
| 451 | self.assertEqual(packet[UDP].dport, self.udp_port_in) |
| 452 | else: |
| 453 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 454 | self.check_icmp_checksum(packet) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 455 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 456 | self.logger.error(ppp("Unexpected or invalid packet " |
| 457 | "(inside network):", packet)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 458 | raise |
| 459 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 460 | def verify_capture_in_ip6(self, capture, src_ip, dst_ip, packet_num=3): |
| 461 | """ |
| 462 | Verify captured IPv6 packets on inside network |
| 463 | |
| 464 | :param capture: Captured packets |
| 465 | :param src_ip: Source IP |
| 466 | :param dst_ip: Destination IP address |
| 467 | :param packet_num: Expected number of packets (Default 3) |
| 468 | """ |
| 469 | self.assertEqual(packet_num, len(capture)) |
| 470 | for packet in capture: |
| 471 | try: |
| 472 | self.assertEqual(packet[IPv6].src, src_ip) |
| 473 | self.assertEqual(packet[IPv6].dst, dst_ip) |
| 474 | if packet.haslayer(TCP): |
| 475 | self.assertEqual(packet[TCP].dport, self.tcp_port_in) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 476 | self.check_tcp_checksum(packet) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 477 | elif packet.haslayer(UDP): |
| 478 | self.assertEqual(packet[UDP].dport, self.udp_port_in) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 479 | self.check_udp_checksum(packet) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 480 | else: |
| 481 | self.assertEqual(packet[ICMPv6EchoReply].id, |
| 482 | self.icmp_id_in) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 483 | self.check_icmpv6_checksum(packet) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 484 | except: |
| 485 | self.logger.error(ppp("Unexpected or invalid packet " |
| 486 | "(inside network):", packet)) |
| 487 | raise |
| 488 | |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 489 | def verify_capture_no_translation(self, capture, ingress_if, egress_if): |
| 490 | """ |
| 491 | Verify captured packet that don't have to be translated |
| 492 | |
| 493 | :param capture: Captured packets |
| 494 | :param ingress_if: Ingress interface |
| 495 | :param egress_if: Egress interface |
| 496 | """ |
| 497 | for packet in capture: |
| 498 | try: |
| 499 | self.assertEqual(packet[IP].src, ingress_if.remote_ip4) |
| 500 | self.assertEqual(packet[IP].dst, egress_if.remote_ip4) |
| 501 | if packet.haslayer(TCP): |
| 502 | self.assertEqual(packet[TCP].sport, self.tcp_port_in) |
| 503 | elif packet.haslayer(UDP): |
| 504 | self.assertEqual(packet[UDP].sport, self.udp_port_in) |
| 505 | else: |
| 506 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
| 507 | except: |
| 508 | self.logger.error(ppp("Unexpected or invalid packet " |
| 509 | "(inside network):", packet)) |
| 510 | raise |
| 511 | |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 512 | def verify_capture_out_with_icmp_errors(self, capture, src_ip=None, |
| 513 | packet_num=3, icmp_type=11): |
| 514 | """ |
| 515 | Verify captured packets with ICMP errors on outside network |
| 516 | |
| 517 | :param capture: Captured packets |
| 518 | :param src_ip: Translated IP address or IP address of VPP |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 519 | (Default use global NAT address) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 520 | :param packet_num: Expected number of packets (Default 3) |
| 521 | :param icmp_type: Type of error ICMP packet |
| 522 | we are expecting (Default 11) |
| 523 | """ |
| 524 | if src_ip is None: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 525 | src_ip = self.nat_addr |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 526 | self.assertEqual(packet_num, len(capture)) |
| 527 | for packet in capture: |
| 528 | try: |
| 529 | self.assertEqual(packet[IP].src, src_ip) |
| 530 | self.assertTrue(packet.haslayer(ICMP)) |
| 531 | icmp = packet[ICMP] |
| 532 | self.assertEqual(icmp.type, icmp_type) |
| 533 | self.assertTrue(icmp.haslayer(IPerror)) |
| 534 | inner_ip = icmp[IPerror] |
| 535 | if inner_ip.haslayer(TCPerror): |
| 536 | self.assertEqual(inner_ip[TCPerror].dport, |
| 537 | self.tcp_port_out) |
| 538 | elif inner_ip.haslayer(UDPerror): |
| 539 | self.assertEqual(inner_ip[UDPerror].dport, |
| 540 | self.udp_port_out) |
| 541 | else: |
| 542 | self.assertEqual(inner_ip[ICMPerror].id, self.icmp_id_out) |
| 543 | except: |
| 544 | self.logger.error(ppp("Unexpected or invalid packet " |
| 545 | "(outside network):", packet)) |
| 546 | raise |
| 547 | |
| 548 | def verify_capture_in_with_icmp_errors(self, capture, in_if, packet_num=3, |
| 549 | icmp_type=11): |
| 550 | """ |
| 551 | Verify captured packets with ICMP errors on inside network |
| 552 | |
| 553 | :param capture: Captured packets |
| 554 | :param in_if: Inside interface |
| 555 | :param packet_num: Expected number of packets (Default 3) |
| 556 | :param icmp_type: Type of error ICMP packet |
| 557 | we are expecting (Default 11) |
| 558 | """ |
| 559 | self.assertEqual(packet_num, len(capture)) |
| 560 | for packet in capture: |
| 561 | try: |
| 562 | self.assertEqual(packet[IP].dst, in_if.remote_ip4) |
| 563 | self.assertTrue(packet.haslayer(ICMP)) |
| 564 | icmp = packet[ICMP] |
| 565 | self.assertEqual(icmp.type, icmp_type) |
| 566 | self.assertTrue(icmp.haslayer(IPerror)) |
| 567 | inner_ip = icmp[IPerror] |
| 568 | if inner_ip.haslayer(TCPerror): |
| 569 | self.assertEqual(inner_ip[TCPerror].sport, |
| 570 | self.tcp_port_in) |
| 571 | elif inner_ip.haslayer(UDPerror): |
| 572 | self.assertEqual(inner_ip[UDPerror].sport, |
| 573 | self.udp_port_in) |
| 574 | else: |
| 575 | self.assertEqual(inner_ip[ICMPerror].id, self.icmp_id_in) |
| 576 | except: |
| 577 | self.logger.error(ppp("Unexpected or invalid packet " |
| 578 | "(inside network):", packet)) |
| 579 | raise |
| 580 | |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 581 | def create_stream_frag(self, src_if, dst, sport, dport, data): |
| 582 | """ |
| 583 | Create fragmented packet stream |
| 584 | |
| 585 | :param src_if: Source interface |
| 586 | :param dst: Destination IPv4 address |
| 587 | :param sport: Source TCP port |
| 588 | :param dport: Destination TCP port |
| 589 | :param data: Payload data |
| 590 | :returns: Fragmets |
| 591 | """ |
| 592 | id = random.randint(0, 65535) |
| 593 | p = (IP(src=src_if.remote_ip4, dst=dst) / |
| 594 | TCP(sport=sport, dport=dport) / |
| 595 | Raw(data)) |
| 596 | p = p.__class__(str(p)) |
| 597 | chksum = p['TCP'].chksum |
| 598 | pkts = [] |
| 599 | p = (Ether(src=src_if.remote_mac, dst=src_if.local_mac) / |
| 600 | IP(src=src_if.remote_ip4, dst=dst, flags="MF", frag=0, id=id) / |
| 601 | TCP(sport=sport, dport=dport, chksum=chksum) / |
| 602 | Raw(data[0:4])) |
| 603 | pkts.append(p) |
| 604 | p = (Ether(src=src_if.remote_mac, dst=src_if.local_mac) / |
| 605 | IP(src=src_if.remote_ip4, dst=dst, flags="MF", frag=3, id=id, |
| 606 | proto=IP_PROTOS.tcp) / |
| 607 | Raw(data[4:20])) |
| 608 | pkts.append(p) |
| 609 | p = (Ether(src=src_if.remote_mac, dst=src_if.local_mac) / |
| 610 | IP(src=src_if.remote_ip4, dst=dst, frag=5, proto=IP_PROTOS.tcp, |
| 611 | id=id) / |
| 612 | Raw(data[20:])) |
| 613 | pkts.append(p) |
| 614 | return pkts |
| 615 | |
| 616 | def create_stream_frag_ip6(self, src_if, dst, sport, dport, data, |
| 617 | pref=None, plen=0, frag_size=128): |
| 618 | """ |
| 619 | Create fragmented packet stream |
| 620 | |
| 621 | :param src_if: Source interface |
| 622 | :param dst: Destination IPv4 address |
| 623 | :param sport: Source TCP port |
| 624 | :param dport: Destination TCP port |
| 625 | :param data: Payload data |
| 626 | :param pref: NAT64 prefix |
| 627 | :param plen: NAT64 prefix length |
| 628 | :param fragsize: size of fragments |
| 629 | :returns: Fragmets |
| 630 | """ |
| 631 | if pref is None: |
| 632 | dst_ip6 = ''.join(['64:ff9b::', dst]) |
| 633 | else: |
| 634 | dst_ip6 = self.compose_ip6(dst, pref, plen) |
| 635 | |
| 636 | p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / |
| 637 | IPv6(src=src_if.remote_ip6, dst=dst_ip6) / |
| 638 | IPv6ExtHdrFragment(id=random.randint(0, 65535)) / |
| 639 | TCP(sport=sport, dport=dport) / |
| 640 | Raw(data)) |
| 641 | |
| 642 | return fragment6(p, frag_size) |
| 643 | |
| 644 | def reass_frags_and_verify(self, frags, src, dst): |
| 645 | """ |
| 646 | Reassemble and verify fragmented packet |
| 647 | |
| 648 | :param frags: Captured fragments |
| 649 | :param src: Source IPv4 address to verify |
| 650 | :param dst: Destination IPv4 address to verify |
| 651 | |
| 652 | :returns: Reassembled IPv4 packet |
| 653 | """ |
| 654 | buffer = StringIO.StringIO() |
| 655 | for p in frags: |
| 656 | self.assertEqual(p[IP].src, src) |
| 657 | self.assertEqual(p[IP].dst, dst) |
| 658 | self.check_ip_checksum(p) |
| 659 | buffer.seek(p[IP].frag * 8) |
| 660 | buffer.write(p[IP].payload) |
| 661 | ip = frags[0].getlayer(IP) |
| 662 | ip = IP(src=frags[0][IP].src, dst=frags[0][IP].dst, |
| 663 | proto=frags[0][IP].proto) |
| 664 | if ip.proto == IP_PROTOS.tcp: |
| 665 | p = (ip / TCP(buffer.getvalue())) |
| 666 | self.check_tcp_checksum(p) |
| 667 | elif ip.proto == IP_PROTOS.udp: |
| 668 | p = (ip / UDP(buffer.getvalue())) |
| 669 | return p |
| 670 | |
| 671 | def reass_frags_and_verify_ip6(self, frags, src, dst): |
| 672 | """ |
| 673 | Reassemble and verify fragmented packet |
| 674 | |
| 675 | :param frags: Captured fragments |
| 676 | :param src: Source IPv6 address to verify |
| 677 | :param dst: Destination IPv6 address to verify |
| 678 | |
| 679 | :returns: Reassembled IPv6 packet |
| 680 | """ |
| 681 | buffer = StringIO.StringIO() |
| 682 | for p in frags: |
| 683 | self.assertEqual(p[IPv6].src, src) |
| 684 | self.assertEqual(p[IPv6].dst, dst) |
| 685 | buffer.seek(p[IPv6ExtHdrFragment].offset * 8) |
| 686 | buffer.write(p[IPv6ExtHdrFragment].payload) |
| 687 | ip = IPv6(src=frags[0][IPv6].src, dst=frags[0][IPv6].dst, |
| 688 | nh=frags[0][IPv6ExtHdrFragment].nh) |
| 689 | if ip.nh == IP_PROTOS.tcp: |
| 690 | p = (ip / TCP(buffer.getvalue())) |
| 691 | self.check_tcp_checksum(p) |
| 692 | elif ip.nh == IP_PROTOS.udp: |
| 693 | p = (ip / UDP(buffer.getvalue())) |
| 694 | return p |
| 695 | |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 696 | def verify_ipfix_nat44_ses(self, data): |
| 697 | """ |
| 698 | Verify IPFIX NAT44 session create/delete event |
| 699 | |
| 700 | :param data: Decoded IPFIX data records |
| 701 | """ |
| 702 | nat44_ses_create_num = 0 |
| 703 | nat44_ses_delete_num = 0 |
| 704 | self.assertEqual(6, len(data)) |
| 705 | for record in data: |
| 706 | # natEvent |
| 707 | self.assertIn(ord(record[230]), [4, 5]) |
| 708 | if ord(record[230]) == 4: |
| 709 | nat44_ses_create_num += 1 |
| 710 | else: |
| 711 | nat44_ses_delete_num += 1 |
| 712 | # sourceIPv4Address |
| 713 | self.assertEqual(self.pg0.remote_ip4n, record[8]) |
| 714 | # postNATSourceIPv4Address |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 715 | self.assertEqual(socket.inet_pton(socket.AF_INET, self.nat_addr), |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 716 | record[225]) |
| 717 | # ingressVRFID |
| 718 | self.assertEqual(struct.pack("!I", 0), record[234]) |
| 719 | # protocolIdentifier/sourceTransportPort/postNAPTSourceTransportPort |
| 720 | if IP_PROTOS.icmp == ord(record[4]): |
| 721 | self.assertEqual(struct.pack("!H", self.icmp_id_in), record[7]) |
| 722 | self.assertEqual(struct.pack("!H", self.icmp_id_out), |
| 723 | record[227]) |
| 724 | elif IP_PROTOS.tcp == ord(record[4]): |
| 725 | self.assertEqual(struct.pack("!H", self.tcp_port_in), |
| 726 | record[7]) |
| 727 | self.assertEqual(struct.pack("!H", self.tcp_port_out), |
| 728 | record[227]) |
| 729 | elif IP_PROTOS.udp == ord(record[4]): |
| 730 | self.assertEqual(struct.pack("!H", self.udp_port_in), |
| 731 | record[7]) |
| 732 | self.assertEqual(struct.pack("!H", self.udp_port_out), |
| 733 | record[227]) |
| 734 | else: |
| 735 | self.fail("Invalid protocol") |
| 736 | self.assertEqual(3, nat44_ses_create_num) |
| 737 | self.assertEqual(3, nat44_ses_delete_num) |
| 738 | |
| 739 | def verify_ipfix_addr_exhausted(self, data): |
| 740 | """ |
| 741 | Verify IPFIX NAT addresses event |
| 742 | |
| 743 | :param data: Decoded IPFIX data records |
| 744 | """ |
| 745 | self.assertEqual(1, len(data)) |
| 746 | record = data[0] |
| 747 | # natEvent |
| 748 | self.assertEqual(ord(record[230]), 3) |
| 749 | # natPoolID |
| 750 | self.assertEqual(struct.pack("!I", 0), record[283]) |
| 751 | |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 752 | def verify_ipfix_max_sessions(self, data, limit): |
| 753 | """ |
| 754 | Verify IPFIX maximum session entries exceeded event |
| 755 | |
| 756 | :param data: Decoded IPFIX data records |
| 757 | :param limit: Number of maximum session entries that can be created. |
| 758 | """ |
| 759 | self.assertEqual(1, len(data)) |
| 760 | record = data[0] |
| 761 | # natEvent |
| 762 | self.assertEqual(ord(record[230]), 13) |
| 763 | # natQuotaExceededEvent |
| 764 | self.assertEqual(struct.pack("I", 1), record[466]) |
| 765 | # maxSessionEntries |
| 766 | self.assertEqual(struct.pack("I", limit), record[471]) |
| 767 | |
| 768 | def verify_ipfix_max_bibs(self, data, limit): |
| 769 | """ |
| 770 | Verify IPFIX maximum BIB entries exceeded event |
| 771 | |
| 772 | :param data: Decoded IPFIX data records |
| 773 | :param limit: Number of maximum BIB entries that can be created. |
| 774 | """ |
| 775 | self.assertEqual(1, len(data)) |
| 776 | record = data[0] |
| 777 | # natEvent |
| 778 | self.assertEqual(ord(record[230]), 13) |
| 779 | # natQuotaExceededEvent |
| 780 | self.assertEqual(struct.pack("I", 2), record[466]) |
| 781 | # maxBIBEntries |
| 782 | self.assertEqual(struct.pack("I", limit), record[472]) |
| 783 | |
| 784 | def verify_ipfix_max_fragments_ip6(self, data, limit, src_addr): |
| 785 | """ |
| 786 | Verify IPFIX maximum IPv6 fragments pending reassembly exceeded event |
| 787 | |
| 788 | :param data: Decoded IPFIX data records |
| 789 | :param limit: Number of maximum fragments pending reassembly |
| 790 | :param src_addr: IPv6 source address |
| 791 | """ |
| 792 | self.assertEqual(1, len(data)) |
| 793 | record = data[0] |
| 794 | # natEvent |
| 795 | self.assertEqual(ord(record[230]), 13) |
| 796 | # natQuotaExceededEvent |
| 797 | self.assertEqual(struct.pack("I", 5), record[466]) |
| 798 | # maxFragmentsPendingReassembly |
| 799 | self.assertEqual(struct.pack("I", limit), record[475]) |
| 800 | # sourceIPv6Address |
| 801 | self.assertEqual(src_addr, record[27]) |
| 802 | |
| 803 | def verify_ipfix_max_fragments_ip4(self, data, limit, src_addr): |
| 804 | """ |
| 805 | Verify IPFIX maximum IPv4 fragments pending reassembly exceeded event |
| 806 | |
| 807 | :param data: Decoded IPFIX data records |
| 808 | :param limit: Number of maximum fragments pending reassembly |
| 809 | :param src_addr: IPv4 source address |
| 810 | """ |
| 811 | self.assertEqual(1, len(data)) |
| 812 | record = data[0] |
| 813 | # natEvent |
| 814 | self.assertEqual(ord(record[230]), 13) |
| 815 | # natQuotaExceededEvent |
| 816 | self.assertEqual(struct.pack("I", 5), record[466]) |
| 817 | # maxFragmentsPendingReassembly |
| 818 | self.assertEqual(struct.pack("I", limit), record[475]) |
| 819 | # sourceIPv4Address |
| 820 | self.assertEqual(src_addr, record[8]) |
| 821 | |
| 822 | def verify_ipfix_bib(self, data, is_create, src_addr): |
| 823 | """ |
| 824 | Verify IPFIX NAT64 BIB create and delete events |
| 825 | |
| 826 | :param data: Decoded IPFIX data records |
| 827 | :param is_create: Create event if nonzero value otherwise delete event |
| 828 | :param src_addr: IPv6 source address |
| 829 | """ |
| 830 | self.assertEqual(1, len(data)) |
| 831 | record = data[0] |
| 832 | # natEvent |
| 833 | if is_create: |
| 834 | self.assertEqual(ord(record[230]), 10) |
| 835 | else: |
| 836 | self.assertEqual(ord(record[230]), 11) |
| 837 | # sourceIPv6Address |
| 838 | self.assertEqual(src_addr, record[27]) |
| 839 | # postNATSourceIPv4Address |
| 840 | self.assertEqual(self.nat_addr_n, record[225]) |
| 841 | # protocolIdentifier |
| 842 | self.assertEqual(IP_PROTOS.tcp, ord(record[4])) |
| 843 | # ingressVRFID |
| 844 | self.assertEqual(struct.pack("!I", 0), record[234]) |
| 845 | # sourceTransportPort |
| 846 | self.assertEqual(struct.pack("!H", self.tcp_port_in), record[7]) |
| 847 | # postNAPTSourceTransportPort |
| 848 | self.assertEqual(struct.pack("!H", self.tcp_port_out), record[227]) |
| 849 | |
| 850 | def verify_ipfix_nat64_ses(self, data, is_create, src_addr, dst_addr, |
| 851 | dst_port): |
| 852 | """ |
| 853 | Verify IPFIX NAT64 session create and delete events |
| 854 | |
| 855 | :param data: Decoded IPFIX data records |
| 856 | :param is_create: Create event if nonzero value otherwise delete event |
| 857 | :param src_addr: IPv6 source address |
| 858 | :param dst_addr: IPv4 destination address |
| 859 | :param dst_port: destination TCP port |
| 860 | """ |
| 861 | self.assertEqual(1, len(data)) |
| 862 | record = data[0] |
| 863 | # natEvent |
| 864 | if is_create: |
| 865 | self.assertEqual(ord(record[230]), 6) |
| 866 | else: |
| 867 | self.assertEqual(ord(record[230]), 7) |
| 868 | # sourceIPv6Address |
| 869 | self.assertEqual(src_addr, record[27]) |
| 870 | # destinationIPv6Address |
| 871 | self.assertEqual(socket.inet_pton(socket.AF_INET6, |
| 872 | self.compose_ip6(dst_addr, |
| 873 | '64:ff9b::', |
| 874 | 96)), |
| 875 | record[28]) |
| 876 | # postNATSourceIPv4Address |
| 877 | self.assertEqual(self.nat_addr_n, record[225]) |
| 878 | # postNATDestinationIPv4Address |
| 879 | self.assertEqual(socket.inet_pton(socket.AF_INET, dst_addr), |
| 880 | record[226]) |
| 881 | # protocolIdentifier |
| 882 | self.assertEqual(IP_PROTOS.tcp, ord(record[4])) |
| 883 | # ingressVRFID |
| 884 | self.assertEqual(struct.pack("!I", 0), record[234]) |
| 885 | # sourceTransportPort |
| 886 | self.assertEqual(struct.pack("!H", self.tcp_port_in), record[7]) |
| 887 | # postNAPTSourceTransportPort |
| 888 | self.assertEqual(struct.pack("!H", self.tcp_port_out), record[227]) |
| 889 | # destinationTransportPort |
| 890 | self.assertEqual(struct.pack("!H", dst_port), record[11]) |
| 891 | # postNAPTDestinationTransportPort |
| 892 | self.assertEqual(struct.pack("!H", dst_port), record[228]) |
| 893 | |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 894 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 895 | class TestNAT44(MethodHolder): |
| 896 | """ NAT44 Test Cases """ |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 897 | |
| 898 | @classmethod |
| 899 | def setUpClass(cls): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 900 | super(TestNAT44, cls).setUpClass() |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 901 | |
| 902 | try: |
| 903 | cls.tcp_port_in = 6303 |
| 904 | cls.tcp_port_out = 6303 |
| 905 | cls.udp_port_in = 6304 |
| 906 | cls.udp_port_out = 6304 |
| 907 | cls.icmp_id_in = 6305 |
| 908 | cls.icmp_id_out = 6305 |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 909 | cls.nat_addr = '10.0.0.3' |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 910 | cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr) |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 911 | cls.ipfix_src_port = 4739 |
| 912 | cls.ipfix_domain_id = 1 |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 913 | |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 914 | cls.create_pg_interfaces(range(10)) |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 915 | cls.interfaces = list(cls.pg_interfaces[0:4]) |
| 916 | |
| 917 | for i in cls.interfaces: |
| 918 | i.admin_up() |
| 919 | i.config_ip4() |
| 920 | i.resolve_arp() |
| 921 | |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 922 | cls.pg0.generate_remote_hosts(3) |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 923 | cls.pg0.configure_ipv4_neighbors() |
| 924 | |
| 925 | cls.overlapping_interfaces = list(list(cls.pg_interfaces[4:7])) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 926 | cls.vapi.ip_table_add_del(10, is_add=1) |
| 927 | cls.vapi.ip_table_add_del(20, is_add=1) |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 928 | |
| 929 | cls.pg4._local_ip4 = "172.16.255.1" |
| 930 | cls.pg4._local_ip4n = socket.inet_pton(socket.AF_INET, i.local_ip4) |
| 931 | cls.pg4._remote_hosts[0]._ip4 = "172.16.255.2" |
| 932 | cls.pg4.set_table_ip4(10) |
Matus Fabian | 6912628 | 2017-08-14 23:39:58 -0700 | [diff] [blame] | 933 | cls.pg5._local_ip4 = "172.17.255.3" |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 934 | cls.pg5._local_ip4n = socket.inet_pton(socket.AF_INET, i.local_ip4) |
Matus Fabian | 6912628 | 2017-08-14 23:39:58 -0700 | [diff] [blame] | 935 | cls.pg5._remote_hosts[0]._ip4 = "172.17.255.4" |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 936 | cls.pg5.set_table_ip4(10) |
| 937 | cls.pg6._local_ip4 = "172.16.255.1" |
| 938 | cls.pg6._local_ip4n = socket.inet_pton(socket.AF_INET, i.local_ip4) |
| 939 | cls.pg6._remote_hosts[0]._ip4 = "172.16.255.2" |
| 940 | cls.pg6.set_table_ip4(20) |
| 941 | for i in cls.overlapping_interfaces: |
| 942 | i.config_ip4() |
| 943 | i.admin_up() |
| 944 | i.resolve_arp() |
| 945 | |
| 946 | cls.pg7.admin_up() |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 947 | cls.pg8.admin_up() |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 948 | |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 949 | cls.pg9.generate_remote_hosts(2) |
| 950 | cls.pg9.config_ip4() |
| 951 | ip_addr_n = socket.inet_pton(socket.AF_INET, "10.0.0.1") |
| 952 | cls.vapi.sw_interface_add_del_address(cls.pg9.sw_if_index, |
| 953 | ip_addr_n, |
| 954 | 24) |
| 955 | cls.pg9.admin_up() |
| 956 | cls.pg9.resolve_arp() |
| 957 | cls.pg9._remote_hosts[1]._ip4 = cls.pg9._remote_hosts[0]._ip4 |
| 958 | cls.pg4._remote_ip4 = cls.pg9._remote_hosts[0]._ip4 = "10.0.0.2" |
| 959 | cls.pg9.resolve_arp() |
| 960 | |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 961 | except Exception: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 962 | super(TestNAT44, cls).tearDownClass() |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 963 | raise |
| 964 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 965 | def clear_nat44(self): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 966 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 967 | Clear NAT44 configuration. |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 968 | """ |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 969 | # I found no elegant way to do this |
| 970 | self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n, |
| 971 | dst_address_length=32, |
| 972 | next_hop_address=self.pg7.remote_ip4n, |
| 973 | next_hop_sw_if_index=self.pg7.sw_if_index, |
| 974 | is_add=0) |
| 975 | self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n, |
| 976 | dst_address_length=32, |
| 977 | next_hop_address=self.pg8.remote_ip4n, |
| 978 | next_hop_sw_if_index=self.pg8.sw_if_index, |
| 979 | is_add=0) |
| 980 | |
| 981 | for intf in [self.pg7, self.pg8]: |
| 982 | neighbors = self.vapi.ip_neighbor_dump(intf.sw_if_index) |
| 983 | for n in neighbors: |
| 984 | self.vapi.ip_neighbor_add_del(intf.sw_if_index, |
| 985 | n.mac_address, |
| 986 | n.ip_address, |
| 987 | is_add=0) |
| 988 | |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 989 | if self.pg7.has_ip4_config: |
| 990 | self.pg7.unconfig_ip4() |
| 991 | |
Matus Fabian | 240b5ef | 2018-01-11 04:09:17 -0800 | [diff] [blame] | 992 | self.vapi.nat44_forwarding_enable_disable(0) |
| 993 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 994 | interfaces = self.vapi.nat44_interface_addr_dump() |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 995 | for intf in interfaces: |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 996 | self.vapi.nat44_add_interface_addr(intf.sw_if_index, |
| 997 | twice_nat=intf.twice_nat, |
| 998 | is_add=0) |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 999 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1000 | self.vapi.nat_ipfix(enable=0, src_port=self.ipfix_src_port, |
| 1001 | domain_id=self.ipfix_domain_id) |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 1002 | self.ipfix_src_port = 4739 |
| 1003 | self.ipfix_domain_id = 1 |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 1004 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1005 | interfaces = self.vapi.nat44_interface_dump() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1006 | for intf in interfaces: |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 1007 | if intf.is_inside > 1: |
| 1008 | self.vapi.nat44_interface_add_del_feature(intf.sw_if_index, |
| 1009 | 0, |
| 1010 | is_add=0) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1011 | self.vapi.nat44_interface_add_del_feature(intf.sw_if_index, |
| 1012 | intf.is_inside, |
| 1013 | is_add=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1014 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1015 | interfaces = self.vapi.nat44_interface_output_feature_dump() |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 1016 | for intf in interfaces: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1017 | self.vapi.nat44_interface_add_del_output_feature(intf.sw_if_index, |
| 1018 | intf.is_inside, |
| 1019 | is_add=0) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 1020 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1021 | static_mappings = self.vapi.nat44_static_mapping_dump() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1022 | for sm in static_mappings: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1023 | self.vapi.nat44_add_del_static_mapping( |
| 1024 | sm.local_ip_address, |
| 1025 | sm.external_ip_address, |
| 1026 | local_port=sm.local_port, |
| 1027 | external_port=sm.external_port, |
| 1028 | addr_only=sm.addr_only, |
| 1029 | vrf_id=sm.vrf_id, |
| 1030 | protocol=sm.protocol, |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1031 | twice_nat=sm.twice_nat, |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 1032 | out2in_only=sm.out2in_only, |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1033 | tag=sm.tag, |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1034 | is_add=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1035 | |
Matus Fabian | 704018c | 2017-09-04 02:17:18 -0700 | [diff] [blame] | 1036 | lb_static_mappings = self.vapi.nat44_lb_static_mapping_dump() |
| 1037 | for lb_sm in lb_static_mappings: |
| 1038 | self.vapi.nat44_add_del_lb_static_mapping( |
| 1039 | lb_sm.external_addr, |
| 1040 | lb_sm.external_port, |
| 1041 | lb_sm.protocol, |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1042 | vrf_id=lb_sm.vrf_id, |
| 1043 | twice_nat=lb_sm.twice_nat, |
Matus Fabian | 240b5ef | 2018-01-11 04:09:17 -0800 | [diff] [blame] | 1044 | out2in_only=lb_sm.out2in_only, |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1045 | tag=lb_sm.tag, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 1046 | is_add=0, |
| 1047 | local_num=0, |
| 1048 | locals=[]) |
Matus Fabian | 704018c | 2017-09-04 02:17:18 -0700 | [diff] [blame] | 1049 | |
Matus Fabian | ab7a805 | 2017-11-28 04:29:41 -0800 | [diff] [blame] | 1050 | identity_mappings = self.vapi.nat44_identity_mapping_dump() |
| 1051 | for id_m in identity_mappings: |
| 1052 | self.vapi.nat44_add_del_identity_mapping( |
| 1053 | addr_only=id_m.addr_only, |
| 1054 | ip=id_m.ip_address, |
| 1055 | port=id_m.port, |
| 1056 | sw_if_index=id_m.sw_if_index, |
| 1057 | vrf_id=id_m.vrf_id, |
| 1058 | protocol=id_m.protocol, |
| 1059 | is_add=0) |
| 1060 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1061 | adresses = self.vapi.nat44_address_dump() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1062 | for addr in adresses: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1063 | self.vapi.nat44_add_del_address_range(addr.ip_address, |
| 1064 | addr.ip_address, |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1065 | twice_nat=addr.twice_nat, |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1066 | is_add=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1067 | |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 1068 | self.vapi.nat_set_reass() |
| 1069 | self.vapi.nat_set_reass(is_ip6=1) |
| 1070 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1071 | def nat44_add_static_mapping(self, local_ip, external_ip='0.0.0.0', |
| 1072 | local_port=0, external_port=0, vrf_id=0, |
| 1073 | is_add=1, external_sw_if_index=0xFFFFFFFF, |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1074 | proto=0, twice_nat=0, out2in_only=0, tag=""): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1075 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1076 | Add/delete NAT44 static mapping |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1077 | |
| 1078 | :param local_ip: Local IP address |
| 1079 | :param external_ip: External IP address |
| 1080 | :param local_port: Local port number (Optional) |
| 1081 | :param external_port: External port number (Optional) |
| 1082 | :param vrf_id: VRF ID (Default 0) |
| 1083 | :param is_add: 1 if add, 0 if delete (Default add) |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 1084 | :param external_sw_if_index: External interface instead of IP address |
Matus Fabian | 09d96f4 | 2017-02-02 01:43:00 -0800 | [diff] [blame] | 1085 | :param proto: IP protocol (Mandatory if port specified) |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1086 | :param twice_nat: 1 if translate external host address and port |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 1087 | :param out2in_only: if 1 rule is matching only out2in direction |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1088 | :param tag: Opaque string tag |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1089 | """ |
| 1090 | addr_only = 1 |
| 1091 | if local_port and external_port: |
| 1092 | addr_only = 0 |
| 1093 | l_ip = socket.inet_pton(socket.AF_INET, local_ip) |
| 1094 | e_ip = socket.inet_pton(socket.AF_INET, external_ip) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1095 | self.vapi.nat44_add_del_static_mapping( |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 1096 | l_ip, |
| 1097 | e_ip, |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 1098 | external_sw_if_index, |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 1099 | local_port, |
| 1100 | external_port, |
| 1101 | addr_only, |
| 1102 | vrf_id, |
Matus Fabian | 09d96f4 | 2017-02-02 01:43:00 -0800 | [diff] [blame] | 1103 | proto, |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1104 | twice_nat, |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 1105 | out2in_only, |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1106 | tag, |
Klement Sekera | da505f6 | 2017-01-04 12:58:53 +0100 | [diff] [blame] | 1107 | is_add) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1108 | |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1109 | def nat44_add_address(self, ip, is_add=1, vrf_id=0xFFFFFFFF, twice_nat=0): |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1110 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1111 | Add/delete NAT44 address |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1112 | |
| 1113 | :param ip: IP address |
| 1114 | :param is_add: 1 if add, 0 if delete (Default add) |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1115 | :param twice_nat: twice NAT address for extenal hosts |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1116 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1117 | nat_addr = socket.inet_pton(socket.AF_INET, ip) |
| 1118 | self.vapi.nat44_add_del_address_range(nat_addr, nat_addr, is_add, |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 1119 | vrf_id=vrf_id, |
| 1120 | twice_nat=twice_nat) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1121 | |
| 1122 | def test_dynamic(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1123 | """ NAT44 dynamic translation test """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1124 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1125 | self.nat44_add_address(self.nat_addr) |
| 1126 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1127 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1128 | is_inside=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1129 | |
| 1130 | # in2out |
| 1131 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1132 | self.pg0.add_stream(pkts) |
| 1133 | self.pg_enable_capture(self.pg_interfaces) |
| 1134 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1135 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1136 | self.verify_capture_out(capture) |
| 1137 | |
| 1138 | # out2in |
| 1139 | pkts = self.create_stream_out(self.pg1) |
| 1140 | self.pg1.add_stream(pkts) |
| 1141 | self.pg_enable_capture(self.pg_interfaces) |
| 1142 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1143 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1144 | self.verify_capture_in(capture, self.pg0) |
| 1145 | |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1146 | def test_dynamic_icmp_errors_in2out_ttl_1(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1147 | """ NAT44 handling of client packets with TTL=1 """ |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1148 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1149 | self.nat44_add_address(self.nat_addr) |
| 1150 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1151 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1152 | is_inside=0) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1153 | |
| 1154 | # Client side - generate traffic |
| 1155 | pkts = self.create_stream_in(self.pg0, self.pg1, ttl=1) |
| 1156 | self.pg0.add_stream(pkts) |
| 1157 | self.pg_enable_capture(self.pg_interfaces) |
| 1158 | self.pg_start() |
| 1159 | |
| 1160 | # Client side - verify ICMP type 11 packets |
| 1161 | capture = self.pg0.get_capture(len(pkts)) |
| 1162 | self.verify_capture_in_with_icmp_errors(capture, self.pg0) |
| 1163 | |
| 1164 | def test_dynamic_icmp_errors_out2in_ttl_1(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1165 | """ NAT44 handling of server packets with TTL=1 """ |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1166 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1167 | self.nat44_add_address(self.nat_addr) |
| 1168 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1169 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1170 | is_inside=0) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1171 | |
| 1172 | # Client side - create sessions |
| 1173 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1174 | self.pg0.add_stream(pkts) |
| 1175 | self.pg_enable_capture(self.pg_interfaces) |
| 1176 | self.pg_start() |
| 1177 | |
| 1178 | # Server side - generate traffic |
| 1179 | capture = self.pg1.get_capture(len(pkts)) |
| 1180 | self.verify_capture_out(capture) |
| 1181 | pkts = self.create_stream_out(self.pg1, ttl=1) |
| 1182 | self.pg1.add_stream(pkts) |
| 1183 | self.pg_enable_capture(self.pg_interfaces) |
| 1184 | self.pg_start() |
| 1185 | |
| 1186 | # Server side - verify ICMP type 11 packets |
| 1187 | capture = self.pg1.get_capture(len(pkts)) |
| 1188 | self.verify_capture_out_with_icmp_errors(capture, |
| 1189 | src_ip=self.pg1.local_ip4) |
| 1190 | |
| 1191 | def test_dynamic_icmp_errors_in2out_ttl_2(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1192 | """ NAT44 handling of error responses to client packets with TTL=2 """ |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1193 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1194 | self.nat44_add_address(self.nat_addr) |
| 1195 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1196 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1197 | is_inside=0) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1198 | |
| 1199 | # Client side - generate traffic |
| 1200 | pkts = self.create_stream_in(self.pg0, self.pg1, ttl=2) |
| 1201 | self.pg0.add_stream(pkts) |
| 1202 | self.pg_enable_capture(self.pg_interfaces) |
| 1203 | self.pg_start() |
| 1204 | |
| 1205 | # Server side - simulate ICMP type 11 response |
| 1206 | capture = self.pg1.get_capture(len(pkts)) |
| 1207 | pkts = [Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1208 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1209 | ICMP(type=11) / packet[IP] for packet in capture] |
| 1210 | self.pg1.add_stream(pkts) |
| 1211 | self.pg_enable_capture(self.pg_interfaces) |
| 1212 | self.pg_start() |
| 1213 | |
| 1214 | # Client side - verify ICMP type 11 packets |
| 1215 | capture = self.pg0.get_capture(len(pkts)) |
| 1216 | self.verify_capture_in_with_icmp_errors(capture, self.pg0) |
| 1217 | |
| 1218 | def test_dynamic_icmp_errors_out2in_ttl_2(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1219 | """ NAT44 handling of error responses to server packets with TTL=2 """ |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1220 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1221 | self.nat44_add_address(self.nat_addr) |
| 1222 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1223 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1224 | is_inside=0) |
Juraj Sloboda | b33f413 | 2017-02-08 23:54:21 -0800 | [diff] [blame] | 1225 | |
| 1226 | # Client side - create sessions |
| 1227 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1228 | self.pg0.add_stream(pkts) |
| 1229 | self.pg_enable_capture(self.pg_interfaces) |
| 1230 | self.pg_start() |
| 1231 | |
| 1232 | # Server side - generate traffic |
| 1233 | capture = self.pg1.get_capture(len(pkts)) |
| 1234 | self.verify_capture_out(capture) |
| 1235 | pkts = self.create_stream_out(self.pg1, ttl=2) |
| 1236 | self.pg1.add_stream(pkts) |
| 1237 | self.pg_enable_capture(self.pg_interfaces) |
| 1238 | self.pg_start() |
| 1239 | |
| 1240 | # Client side - simulate ICMP type 11 response |
| 1241 | capture = self.pg0.get_capture(len(pkts)) |
| 1242 | pkts = [Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 1243 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 1244 | ICMP(type=11) / packet[IP] for packet in capture] |
| 1245 | self.pg0.add_stream(pkts) |
| 1246 | self.pg_enable_capture(self.pg_interfaces) |
| 1247 | self.pg_start() |
| 1248 | |
| 1249 | # Server side - verify ICMP type 11 packets |
| 1250 | capture = self.pg1.get_capture(len(pkts)) |
| 1251 | self.verify_capture_out_with_icmp_errors(capture) |
| 1252 | |
Juraj Sloboda | 665e482 | 2017-02-16 17:17:19 -0800 | [diff] [blame] | 1253 | def test_ping_out_interface_from_outside(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1254 | """ Ping NAT44 out interface from outside network """ |
Juraj Sloboda | 665e482 | 2017-02-16 17:17:19 -0800 | [diff] [blame] | 1255 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1256 | self.nat44_add_address(self.nat_addr) |
| 1257 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1258 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1259 | is_inside=0) |
Juraj Sloboda | 665e482 | 2017-02-16 17:17:19 -0800 | [diff] [blame] | 1260 | |
| 1261 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 1262 | IP(src=self.pg1.remote_ip4, dst=self.pg1.local_ip4) / |
| 1263 | ICMP(id=self.icmp_id_out, type='echo-request')) |
| 1264 | pkts = [p] |
| 1265 | self.pg1.add_stream(pkts) |
| 1266 | self.pg_enable_capture(self.pg_interfaces) |
| 1267 | self.pg_start() |
| 1268 | capture = self.pg1.get_capture(len(pkts)) |
| 1269 | self.assertEqual(1, len(capture)) |
| 1270 | packet = capture[0] |
| 1271 | try: |
| 1272 | self.assertEqual(packet[IP].src, self.pg1.local_ip4) |
| 1273 | self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) |
| 1274 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
| 1275 | self.assertEqual(packet[ICMP].type, 0) # echo reply |
| 1276 | except: |
| 1277 | self.logger.error(ppp("Unexpected or invalid packet " |
| 1278 | "(outside network):", packet)) |
| 1279 | raise |
| 1280 | |
Juraj Sloboda | d367768 | 2017-04-14 03:24:45 +0200 | [diff] [blame] | 1281 | def test_ping_internal_host_from_outside(self): |
| 1282 | """ Ping internal host from outside network """ |
| 1283 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1284 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr) |
| 1285 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1286 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1287 | is_inside=0) |
Juraj Sloboda | d367768 | 2017-04-14 03:24:45 +0200 | [diff] [blame] | 1288 | |
| 1289 | # out2in |
| 1290 | pkt = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1291 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr, ttl=64) / |
Juraj Sloboda | d367768 | 2017-04-14 03:24:45 +0200 | [diff] [blame] | 1292 | ICMP(id=self.icmp_id_out, type='echo-request')) |
| 1293 | self.pg1.add_stream(pkt) |
| 1294 | self.pg_enable_capture(self.pg_interfaces) |
| 1295 | self.pg_start() |
| 1296 | capture = self.pg0.get_capture(1) |
| 1297 | self.verify_capture_in(capture, self.pg0, packet_num=1) |
| 1298 | self.assert_equal(capture[0][IP].proto, IP_PROTOS.icmp) |
| 1299 | |
| 1300 | # in2out |
| 1301 | pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 1302 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, ttl=64) / |
| 1303 | ICMP(id=self.icmp_id_in, type='echo-reply')) |
| 1304 | self.pg0.add_stream(pkt) |
| 1305 | self.pg_enable_capture(self.pg_interfaces) |
| 1306 | self.pg_start() |
| 1307 | capture = self.pg1.get_capture(1) |
| 1308 | self.verify_capture_out(capture, same_port=True, packet_num=1) |
| 1309 | self.assert_equal(capture[0][IP].proto, IP_PROTOS.icmp) |
| 1310 | |
Juraj Sloboda | 7b92979 | 2017-11-23 13:20:48 +0100 | [diff] [blame] | 1311 | def test_forwarding(self): |
| 1312 | """ NAT44 forwarding test """ |
| 1313 | |
| 1314 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1315 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1316 | is_inside=0) |
| 1317 | self.vapi.nat44_forwarding_enable_disable(1) |
| 1318 | |
| 1319 | real_ip = self.pg0.remote_ip4n |
| 1320 | alias_ip = self.nat_addr_n |
| 1321 | self.vapi.nat44_add_del_static_mapping(local_ip=real_ip, |
| 1322 | external_ip=alias_ip) |
| 1323 | |
| 1324 | try: |
| 1325 | # in2out - static mapping match |
| 1326 | |
| 1327 | pkts = self.create_stream_out(self.pg1) |
| 1328 | self.pg1.add_stream(pkts) |
| 1329 | self.pg_enable_capture(self.pg_interfaces) |
| 1330 | self.pg_start() |
| 1331 | capture = self.pg0.get_capture(len(pkts)) |
| 1332 | self.verify_capture_in(capture, self.pg0) |
| 1333 | |
| 1334 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1335 | self.pg0.add_stream(pkts) |
| 1336 | self.pg_enable_capture(self.pg_interfaces) |
| 1337 | self.pg_start() |
| 1338 | capture = self.pg1.get_capture(len(pkts)) |
| 1339 | self.verify_capture_out(capture, same_port=True) |
| 1340 | |
| 1341 | # in2out - no static mapping match |
| 1342 | |
| 1343 | host0 = self.pg0.remote_hosts[0] |
| 1344 | self.pg0.remote_hosts[0] = self.pg0.remote_hosts[1] |
| 1345 | try: |
| 1346 | pkts = self.create_stream_out(self.pg1, |
| 1347 | dst_ip=self.pg0.remote_ip4, |
| 1348 | use_inside_ports=True) |
| 1349 | self.pg1.add_stream(pkts) |
| 1350 | self.pg_enable_capture(self.pg_interfaces) |
| 1351 | self.pg_start() |
| 1352 | capture = self.pg0.get_capture(len(pkts)) |
| 1353 | self.verify_capture_in(capture, self.pg0) |
| 1354 | |
| 1355 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1356 | self.pg0.add_stream(pkts) |
| 1357 | self.pg_enable_capture(self.pg_interfaces) |
| 1358 | self.pg_start() |
| 1359 | capture = self.pg1.get_capture(len(pkts)) |
| 1360 | self.verify_capture_out(capture, nat_ip=self.pg0.remote_ip4, |
| 1361 | same_port=True) |
| 1362 | finally: |
| 1363 | self.pg0.remote_hosts[0] = host0 |
| 1364 | |
| 1365 | finally: |
| 1366 | self.vapi.nat44_forwarding_enable_disable(0) |
| 1367 | self.vapi.nat44_add_del_static_mapping(local_ip=real_ip, |
| 1368 | external_ip=alias_ip, |
| 1369 | is_add=0) |
| 1370 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1371 | def test_static_in(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1372 | """ 1:1 NAT initialized from inside network """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1373 | |
| 1374 | nat_ip = "10.0.0.10" |
| 1375 | self.tcp_port_out = 6303 |
| 1376 | self.udp_port_out = 6304 |
| 1377 | self.icmp_id_out = 6305 |
| 1378 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1379 | self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip) |
| 1380 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1381 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1382 | is_inside=0) |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1383 | sm = self.vapi.nat44_static_mapping_dump() |
| 1384 | self.assertEqual(len(sm), 1) |
| 1385 | self.assertEqual((sm[0].tag).split('\0', 1)[0], '') |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1386 | |
| 1387 | # in2out |
| 1388 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1389 | self.pg0.add_stream(pkts) |
| 1390 | self.pg_enable_capture(self.pg_interfaces) |
| 1391 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1392 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1393 | self.verify_capture_out(capture, nat_ip, True) |
| 1394 | |
| 1395 | # out2in |
| 1396 | pkts = self.create_stream_out(self.pg1, nat_ip) |
| 1397 | self.pg1.add_stream(pkts) |
| 1398 | self.pg_enable_capture(self.pg_interfaces) |
| 1399 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1400 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1401 | self.verify_capture_in(capture, self.pg0) |
| 1402 | |
| 1403 | def test_static_out(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1404 | """ 1:1 NAT initialized from outside network """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1405 | |
| 1406 | nat_ip = "10.0.0.20" |
| 1407 | self.tcp_port_out = 6303 |
| 1408 | self.udp_port_out = 6304 |
| 1409 | self.icmp_id_out = 6305 |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1410 | tag = "testTAG" |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1411 | |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1412 | self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip, tag=tag) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1413 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1414 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1415 | is_inside=0) |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 1416 | sm = self.vapi.nat44_static_mapping_dump() |
| 1417 | self.assertEqual(len(sm), 1) |
| 1418 | self.assertEqual((sm[0].tag).split('\0', 1)[0], tag) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1419 | |
| 1420 | # out2in |
| 1421 | pkts = self.create_stream_out(self.pg1, nat_ip) |
| 1422 | self.pg1.add_stream(pkts) |
| 1423 | self.pg_enable_capture(self.pg_interfaces) |
| 1424 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1425 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1426 | self.verify_capture_in(capture, self.pg0) |
| 1427 | |
| 1428 | # in2out |
| 1429 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1430 | self.pg0.add_stream(pkts) |
| 1431 | self.pg_enable_capture(self.pg_interfaces) |
| 1432 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1433 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1434 | self.verify_capture_out(capture, nat_ip, True) |
| 1435 | |
| 1436 | def test_static_with_port_in(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1437 | """ 1:1 NAPT initialized from inside network """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1438 | |
| 1439 | self.tcp_port_out = 3606 |
| 1440 | self.udp_port_out = 3607 |
| 1441 | self.icmp_id_out = 3608 |
| 1442 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1443 | self.nat44_add_address(self.nat_addr) |
| 1444 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1445 | self.tcp_port_in, self.tcp_port_out, |
| 1446 | proto=IP_PROTOS.tcp) |
| 1447 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1448 | self.udp_port_in, self.udp_port_out, |
| 1449 | proto=IP_PROTOS.udp) |
| 1450 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1451 | self.icmp_id_in, self.icmp_id_out, |
| 1452 | proto=IP_PROTOS.icmp) |
| 1453 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1454 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1455 | is_inside=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1456 | |
| 1457 | # in2out |
| 1458 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1459 | self.pg0.add_stream(pkts) |
| 1460 | self.pg_enable_capture(self.pg_interfaces) |
| 1461 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1462 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1463 | self.verify_capture_out(capture) |
| 1464 | |
| 1465 | # out2in |
| 1466 | pkts = self.create_stream_out(self.pg1) |
| 1467 | self.pg1.add_stream(pkts) |
| 1468 | self.pg_enable_capture(self.pg_interfaces) |
| 1469 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1470 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1471 | self.verify_capture_in(capture, self.pg0) |
| 1472 | |
| 1473 | def test_static_with_port_out(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1474 | """ 1:1 NAPT initialized from outside network """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1475 | |
| 1476 | self.tcp_port_out = 30606 |
| 1477 | self.udp_port_out = 30607 |
| 1478 | self.icmp_id_out = 30608 |
| 1479 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1480 | self.nat44_add_address(self.nat_addr) |
| 1481 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1482 | self.tcp_port_in, self.tcp_port_out, |
| 1483 | proto=IP_PROTOS.tcp) |
| 1484 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1485 | self.udp_port_in, self.udp_port_out, |
| 1486 | proto=IP_PROTOS.udp) |
| 1487 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1488 | self.icmp_id_in, self.icmp_id_out, |
| 1489 | proto=IP_PROTOS.icmp) |
| 1490 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1491 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1492 | is_inside=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1493 | |
| 1494 | # out2in |
| 1495 | pkts = self.create_stream_out(self.pg1) |
| 1496 | self.pg1.add_stream(pkts) |
| 1497 | self.pg_enable_capture(self.pg_interfaces) |
| 1498 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1499 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1500 | self.verify_capture_in(capture, self.pg0) |
| 1501 | |
| 1502 | # in2out |
| 1503 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1504 | self.pg0.add_stream(pkts) |
| 1505 | self.pg_enable_capture(self.pg_interfaces) |
| 1506 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1507 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1508 | self.verify_capture_out(capture) |
| 1509 | |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 1510 | def test_static_with_port_out2(self): |
| 1511 | """ 1:1 NAPT symmetrical rule """ |
| 1512 | |
| 1513 | external_port = 80 |
| 1514 | local_port = 8080 |
| 1515 | |
| 1516 | self.vapi.nat44_forwarding_enable_disable(1) |
| 1517 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 1518 | local_port, external_port, |
| 1519 | proto=IP_PROTOS.tcp, out2in_only=1) |
| 1520 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1521 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1522 | is_inside=0) |
| 1523 | |
| 1524 | # from client to service |
| 1525 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1526 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 1527 | TCP(sport=12345, dport=external_port)) |
| 1528 | self.pg1.add_stream(p) |
| 1529 | self.pg_enable_capture(self.pg_interfaces) |
| 1530 | self.pg_start() |
| 1531 | capture = self.pg0.get_capture(1) |
| 1532 | p = capture[0] |
| 1533 | server = None |
| 1534 | try: |
| 1535 | ip = p[IP] |
| 1536 | tcp = p[TCP] |
| 1537 | self.assertEqual(ip.dst, self.pg0.remote_ip4) |
| 1538 | self.assertEqual(tcp.dport, local_port) |
| 1539 | self.check_tcp_checksum(p) |
| 1540 | self.check_ip_checksum(p) |
| 1541 | except: |
| 1542 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1543 | raise |
| 1544 | |
| 1545 | # from service back to client |
| 1546 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 1547 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 1548 | TCP(sport=local_port, dport=12345)) |
| 1549 | self.pg0.add_stream(p) |
| 1550 | self.pg_enable_capture(self.pg_interfaces) |
| 1551 | self.pg_start() |
| 1552 | capture = self.pg1.get_capture(1) |
| 1553 | p = capture[0] |
| 1554 | try: |
| 1555 | ip = p[IP] |
| 1556 | tcp = p[TCP] |
| 1557 | self.assertEqual(ip.src, self.nat_addr) |
| 1558 | self.assertEqual(tcp.sport, external_port) |
| 1559 | self.check_tcp_checksum(p) |
| 1560 | self.check_ip_checksum(p) |
| 1561 | except: |
| 1562 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1563 | raise |
| 1564 | |
| 1565 | # from client to server (no translation) |
| 1566 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1567 | IP(src=self.pg1.remote_ip4, dst=self.pg0.remote_ip4) / |
| 1568 | TCP(sport=12346, dport=local_port)) |
| 1569 | self.pg1.add_stream(p) |
| 1570 | self.pg_enable_capture(self.pg_interfaces) |
| 1571 | self.pg_start() |
| 1572 | capture = self.pg0.get_capture(1) |
| 1573 | p = capture[0] |
| 1574 | server = None |
| 1575 | try: |
| 1576 | ip = p[IP] |
| 1577 | tcp = p[TCP] |
| 1578 | self.assertEqual(ip.dst, self.pg0.remote_ip4) |
| 1579 | self.assertEqual(tcp.dport, local_port) |
| 1580 | self.check_tcp_checksum(p) |
| 1581 | self.check_ip_checksum(p) |
| 1582 | except: |
| 1583 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1584 | raise |
| 1585 | |
| 1586 | # from service back to client (no translation) |
| 1587 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 1588 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 1589 | TCP(sport=local_port, dport=12346)) |
| 1590 | self.pg0.add_stream(p) |
| 1591 | self.pg_enable_capture(self.pg_interfaces) |
| 1592 | self.pg_start() |
| 1593 | capture = self.pg1.get_capture(1) |
| 1594 | p = capture[0] |
| 1595 | try: |
| 1596 | ip = p[IP] |
| 1597 | tcp = p[TCP] |
| 1598 | self.assertEqual(ip.src, self.pg0.remote_ip4) |
| 1599 | self.assertEqual(tcp.sport, local_port) |
| 1600 | self.check_tcp_checksum(p) |
| 1601 | self.check_ip_checksum(p) |
| 1602 | except: |
| 1603 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1604 | raise |
| 1605 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1606 | def test_static_vrf_aware(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1607 | """ 1:1 NAT VRF awareness """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1608 | |
| 1609 | nat_ip1 = "10.0.0.30" |
| 1610 | nat_ip2 = "10.0.0.40" |
| 1611 | self.tcp_port_out = 6303 |
| 1612 | self.udp_port_out = 6304 |
| 1613 | self.icmp_id_out = 6305 |
| 1614 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1615 | self.nat44_add_static_mapping(self.pg4.remote_ip4, nat_ip1, |
| 1616 | vrf_id=10) |
| 1617 | self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip2, |
| 1618 | vrf_id=10) |
| 1619 | self.vapi.nat44_interface_add_del_feature(self.pg3.sw_if_index, |
| 1620 | is_inside=0) |
| 1621 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1622 | self.vapi.nat44_interface_add_del_feature(self.pg4.sw_if_index) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1623 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1624 | # inside interface VRF match NAT44 static mapping VRF |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1625 | pkts = self.create_stream_in(self.pg4, self.pg3) |
| 1626 | self.pg4.add_stream(pkts) |
| 1627 | self.pg_enable_capture(self.pg_interfaces) |
| 1628 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1629 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1630 | self.verify_capture_out(capture, nat_ip1, True) |
| 1631 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1632 | # inside interface VRF don't match NAT44 static mapping VRF (packets |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1633 | # are dropped) |
| 1634 | pkts = self.create_stream_in(self.pg0, self.pg3) |
| 1635 | self.pg0.add_stream(pkts) |
| 1636 | self.pg_enable_capture(self.pg_interfaces) |
| 1637 | self.pg_start() |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 1638 | self.pg3.assert_nothing_captured() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1639 | |
Matus Fabian | ab7a805 | 2017-11-28 04:29:41 -0800 | [diff] [blame] | 1640 | def test_identity_nat(self): |
| 1641 | """ Identity NAT """ |
| 1642 | |
| 1643 | self.vapi.nat44_add_del_identity_mapping(ip=self.pg0.remote_ip4n) |
| 1644 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1645 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1646 | is_inside=0) |
| 1647 | |
| 1648 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1649 | IP(src=self.pg1.remote_ip4, dst=self.pg0.remote_ip4) / |
| 1650 | TCP(sport=12345, dport=56789)) |
| 1651 | self.pg1.add_stream(p) |
| 1652 | self.pg_enable_capture(self.pg_interfaces) |
| 1653 | self.pg_start() |
| 1654 | capture = self.pg0.get_capture(1) |
| 1655 | p = capture[0] |
| 1656 | try: |
| 1657 | ip = p[IP] |
| 1658 | tcp = p[TCP] |
| 1659 | self.assertEqual(ip.dst, self.pg0.remote_ip4) |
| 1660 | self.assertEqual(ip.src, self.pg1.remote_ip4) |
| 1661 | self.assertEqual(tcp.dport, 56789) |
| 1662 | self.assertEqual(tcp.sport, 12345) |
| 1663 | self.check_tcp_checksum(p) |
| 1664 | self.check_ip_checksum(p) |
| 1665 | except: |
| 1666 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1667 | raise |
| 1668 | |
Matus Fabian | 704018c | 2017-09-04 02:17:18 -0700 | [diff] [blame] | 1669 | def test_static_lb(self): |
| 1670 | """ NAT44 local service load balancing """ |
| 1671 | external_addr_n = socket.inet_pton(socket.AF_INET, self.nat_addr) |
| 1672 | external_port = 80 |
| 1673 | local_port = 8080 |
| 1674 | server1 = self.pg0.remote_hosts[0] |
| 1675 | server2 = self.pg0.remote_hosts[1] |
| 1676 | |
| 1677 | locals = [{'addr': server1.ip4n, |
| 1678 | 'port': local_port, |
| 1679 | 'probability': 70}, |
| 1680 | {'addr': server2.ip4n, |
| 1681 | 'port': local_port, |
| 1682 | 'probability': 30}] |
| 1683 | |
| 1684 | self.nat44_add_address(self.nat_addr) |
| 1685 | self.vapi.nat44_add_del_lb_static_mapping(external_addr_n, |
| 1686 | external_port, |
| 1687 | IP_PROTOS.tcp, |
| 1688 | local_num=len(locals), |
| 1689 | locals=locals) |
| 1690 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1691 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1692 | is_inside=0) |
| 1693 | |
| 1694 | # from client to service |
| 1695 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1696 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 1697 | TCP(sport=12345, dport=external_port)) |
| 1698 | self.pg1.add_stream(p) |
| 1699 | self.pg_enable_capture(self.pg_interfaces) |
| 1700 | self.pg_start() |
| 1701 | capture = self.pg0.get_capture(1) |
| 1702 | p = capture[0] |
| 1703 | server = None |
| 1704 | try: |
| 1705 | ip = p[IP] |
| 1706 | tcp = p[TCP] |
| 1707 | self.assertIn(ip.dst, [server1.ip4, server2.ip4]) |
| 1708 | if ip.dst == server1.ip4: |
| 1709 | server = server1 |
| 1710 | else: |
| 1711 | server = server2 |
| 1712 | self.assertEqual(tcp.dport, local_port) |
| 1713 | self.check_tcp_checksum(p) |
| 1714 | self.check_ip_checksum(p) |
| 1715 | except: |
| 1716 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1717 | raise |
| 1718 | |
| 1719 | # from service back to client |
| 1720 | p = (Ether(src=server.mac, dst=self.pg0.local_mac) / |
| 1721 | IP(src=server.ip4, dst=self.pg1.remote_ip4) / |
| 1722 | TCP(sport=local_port, dport=12345)) |
| 1723 | self.pg0.add_stream(p) |
| 1724 | self.pg_enable_capture(self.pg_interfaces) |
| 1725 | self.pg_start() |
| 1726 | capture = self.pg1.get_capture(1) |
| 1727 | p = capture[0] |
| 1728 | try: |
| 1729 | ip = p[IP] |
| 1730 | tcp = p[TCP] |
| 1731 | self.assertEqual(ip.src, self.nat_addr) |
| 1732 | self.assertEqual(tcp.sport, external_port) |
| 1733 | self.check_tcp_checksum(p) |
| 1734 | self.check_ip_checksum(p) |
| 1735 | except: |
| 1736 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1737 | raise |
| 1738 | |
| 1739 | # multiple clients |
| 1740 | server1_n = 0 |
| 1741 | server2_n = 0 |
| 1742 | clients = ip4_range(self.pg1.remote_ip4, 10, 20) |
| 1743 | pkts = [] |
| 1744 | for client in clients: |
| 1745 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1746 | IP(src=client, dst=self.nat_addr) / |
| 1747 | TCP(sport=12345, dport=external_port)) |
| 1748 | pkts.append(p) |
| 1749 | self.pg1.add_stream(pkts) |
| 1750 | self.pg_enable_capture(self.pg_interfaces) |
| 1751 | self.pg_start() |
| 1752 | capture = self.pg0.get_capture(len(pkts)) |
| 1753 | for p in capture: |
| 1754 | if p[IP].dst == server1.ip4: |
| 1755 | server1_n += 1 |
| 1756 | else: |
| 1757 | server2_n += 1 |
| 1758 | self.assertTrue(server1_n > server2_n) |
| 1759 | |
Matus Fabian | 240b5ef | 2018-01-11 04:09:17 -0800 | [diff] [blame] | 1760 | def test_static_lb_2(self): |
| 1761 | """ NAT44 local service load balancing (asymmetrical rule) """ |
| 1762 | external_addr_n = socket.inet_pton(socket.AF_INET, self.nat_addr) |
| 1763 | external_port = 80 |
| 1764 | local_port = 8080 |
| 1765 | server1 = self.pg0.remote_hosts[0] |
| 1766 | server2 = self.pg0.remote_hosts[1] |
| 1767 | |
| 1768 | locals = [{'addr': server1.ip4n, |
| 1769 | 'port': local_port, |
| 1770 | 'probability': 70}, |
| 1771 | {'addr': server2.ip4n, |
| 1772 | 'port': local_port, |
| 1773 | 'probability': 30}] |
| 1774 | |
| 1775 | self.vapi.nat44_forwarding_enable_disable(1) |
| 1776 | self.vapi.nat44_add_del_lb_static_mapping(external_addr_n, |
| 1777 | external_port, |
| 1778 | IP_PROTOS.tcp, |
| 1779 | out2in_only=1, |
| 1780 | local_num=len(locals), |
| 1781 | locals=locals) |
| 1782 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1783 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 1784 | is_inside=0) |
| 1785 | |
| 1786 | # from client to service |
| 1787 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1788 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 1789 | TCP(sport=12345, dport=external_port)) |
| 1790 | self.pg1.add_stream(p) |
| 1791 | self.pg_enable_capture(self.pg_interfaces) |
| 1792 | self.pg_start() |
| 1793 | capture = self.pg0.get_capture(1) |
| 1794 | p = capture[0] |
| 1795 | server = None |
| 1796 | try: |
| 1797 | ip = p[IP] |
| 1798 | tcp = p[TCP] |
| 1799 | self.assertIn(ip.dst, [server1.ip4, server2.ip4]) |
| 1800 | if ip.dst == server1.ip4: |
| 1801 | server = server1 |
| 1802 | else: |
| 1803 | server = server2 |
| 1804 | self.assertEqual(tcp.dport, local_port) |
| 1805 | self.check_tcp_checksum(p) |
| 1806 | self.check_ip_checksum(p) |
| 1807 | except: |
| 1808 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1809 | raise |
| 1810 | |
| 1811 | # from service back to client |
| 1812 | p = (Ether(src=server.mac, dst=self.pg0.local_mac) / |
| 1813 | IP(src=server.ip4, dst=self.pg1.remote_ip4) / |
| 1814 | TCP(sport=local_port, dport=12345)) |
| 1815 | self.pg0.add_stream(p) |
| 1816 | self.pg_enable_capture(self.pg_interfaces) |
| 1817 | self.pg_start() |
| 1818 | capture = self.pg1.get_capture(1) |
| 1819 | p = capture[0] |
| 1820 | try: |
| 1821 | ip = p[IP] |
| 1822 | tcp = p[TCP] |
| 1823 | self.assertEqual(ip.src, self.nat_addr) |
| 1824 | self.assertEqual(tcp.sport, external_port) |
| 1825 | self.check_tcp_checksum(p) |
| 1826 | self.check_ip_checksum(p) |
| 1827 | except: |
| 1828 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1829 | raise |
| 1830 | |
| 1831 | # from client to server (no translation) |
| 1832 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 1833 | IP(src=self.pg1.remote_ip4, dst=server1.ip4) / |
| 1834 | TCP(sport=12346, dport=local_port)) |
| 1835 | self.pg1.add_stream(p) |
| 1836 | self.pg_enable_capture(self.pg_interfaces) |
| 1837 | self.pg_start() |
| 1838 | capture = self.pg0.get_capture(1) |
| 1839 | p = capture[0] |
| 1840 | server = None |
| 1841 | try: |
| 1842 | ip = p[IP] |
| 1843 | tcp = p[TCP] |
| 1844 | self.assertEqual(ip.dst, server1.ip4) |
| 1845 | self.assertEqual(tcp.dport, local_port) |
| 1846 | self.check_tcp_checksum(p) |
| 1847 | self.check_ip_checksum(p) |
| 1848 | except: |
| 1849 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1850 | raise |
| 1851 | |
| 1852 | # from service back to client (no translation) |
| 1853 | p = (Ether(src=server1.mac, dst=self.pg0.local_mac) / |
| 1854 | IP(src=server1.ip4, dst=self.pg1.remote_ip4) / |
| 1855 | TCP(sport=local_port, dport=12346)) |
| 1856 | self.pg0.add_stream(p) |
| 1857 | self.pg_enable_capture(self.pg_interfaces) |
| 1858 | self.pg_start() |
| 1859 | capture = self.pg1.get_capture(1) |
| 1860 | p = capture[0] |
| 1861 | try: |
| 1862 | ip = p[IP] |
| 1863 | tcp = p[TCP] |
| 1864 | self.assertEqual(ip.src, server1.ip4) |
| 1865 | self.assertEqual(tcp.sport, local_port) |
| 1866 | self.check_tcp_checksum(p) |
| 1867 | self.check_ip_checksum(p) |
| 1868 | except: |
| 1869 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1870 | raise |
| 1871 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1872 | def test_multiple_inside_interfaces(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1873 | """ NAT44 multiple non-overlapping address space inside interfaces """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1874 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1875 | self.nat44_add_address(self.nat_addr) |
| 1876 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 1877 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index) |
| 1878 | self.vapi.nat44_interface_add_del_feature(self.pg3.sw_if_index, |
| 1879 | is_inside=0) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1880 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1881 | # between two NAT44 inside interfaces (no translation) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1882 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 1883 | self.pg0.add_stream(pkts) |
| 1884 | self.pg_enable_capture(self.pg_interfaces) |
| 1885 | self.pg_start() |
| 1886 | capture = self.pg1.get_capture(len(pkts)) |
| 1887 | self.verify_capture_no_translation(capture, self.pg0, self.pg1) |
| 1888 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1889 | # from NAT44 inside to interface without NAT44 feature (no translation) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1890 | pkts = self.create_stream_in(self.pg0, self.pg2) |
| 1891 | self.pg0.add_stream(pkts) |
| 1892 | self.pg_enable_capture(self.pg_interfaces) |
| 1893 | self.pg_start() |
| 1894 | capture = self.pg2.get_capture(len(pkts)) |
| 1895 | self.verify_capture_no_translation(capture, self.pg0, self.pg2) |
| 1896 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1897 | # in2out 1st interface |
| 1898 | pkts = self.create_stream_in(self.pg0, self.pg3) |
| 1899 | self.pg0.add_stream(pkts) |
| 1900 | self.pg_enable_capture(self.pg_interfaces) |
| 1901 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1902 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1903 | self.verify_capture_out(capture) |
| 1904 | |
| 1905 | # out2in 1st interface |
| 1906 | pkts = self.create_stream_out(self.pg3) |
| 1907 | self.pg3.add_stream(pkts) |
| 1908 | self.pg_enable_capture(self.pg_interfaces) |
| 1909 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1910 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1911 | self.verify_capture_in(capture, self.pg0) |
| 1912 | |
| 1913 | # in2out 2nd interface |
| 1914 | pkts = self.create_stream_in(self.pg1, self.pg3) |
| 1915 | self.pg1.add_stream(pkts) |
| 1916 | self.pg_enable_capture(self.pg_interfaces) |
| 1917 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1918 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1919 | self.verify_capture_out(capture) |
| 1920 | |
| 1921 | # out2in 2nd interface |
| 1922 | pkts = self.create_stream_out(self.pg3) |
| 1923 | self.pg3.add_stream(pkts) |
| 1924 | self.pg_enable_capture(self.pg_interfaces) |
| 1925 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1926 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1927 | self.verify_capture_in(capture, self.pg1) |
| 1928 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1929 | def test_inside_overlapping_interfaces(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1930 | """ NAT44 multiple inside interfaces with overlapping address space """ |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1931 | |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1932 | static_nat_ip = "10.0.0.10" |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1933 | self.nat44_add_address(self.nat_addr) |
| 1934 | self.vapi.nat44_interface_add_del_feature(self.pg3.sw_if_index, |
| 1935 | is_inside=0) |
| 1936 | self.vapi.nat44_interface_add_del_feature(self.pg4.sw_if_index) |
| 1937 | self.vapi.nat44_interface_add_del_feature(self.pg5.sw_if_index) |
| 1938 | self.vapi.nat44_interface_add_del_feature(self.pg6.sw_if_index) |
| 1939 | self.nat44_add_static_mapping(self.pg6.remote_ip4, static_nat_ip, |
| 1940 | vrf_id=20) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1941 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1942 | # between NAT44 inside interfaces with same VRF (no translation) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1943 | pkts = self.create_stream_in(self.pg4, self.pg5) |
| 1944 | self.pg4.add_stream(pkts) |
| 1945 | self.pg_enable_capture(self.pg_interfaces) |
| 1946 | self.pg_start() |
| 1947 | capture = self.pg5.get_capture(len(pkts)) |
| 1948 | self.verify_capture_no_translation(capture, self.pg4, self.pg5) |
| 1949 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1950 | # between NAT44 inside interfaces with different VRF (hairpinning) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1951 | p = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) / |
| 1952 | IP(src=self.pg4.remote_ip4, dst=static_nat_ip) / |
| 1953 | TCP(sport=1234, dport=5678)) |
| 1954 | self.pg4.add_stream(p) |
| 1955 | self.pg_enable_capture(self.pg_interfaces) |
| 1956 | self.pg_start() |
| 1957 | capture = self.pg6.get_capture(1) |
| 1958 | p = capture[0] |
| 1959 | try: |
| 1960 | ip = p[IP] |
| 1961 | tcp = p[TCP] |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 1962 | self.assertEqual(ip.src, self.nat_addr) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 1963 | self.assertEqual(ip.dst, self.pg6.remote_ip4) |
| 1964 | self.assertNotEqual(tcp.sport, 1234) |
| 1965 | self.assertEqual(tcp.dport, 5678) |
| 1966 | except: |
| 1967 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 1968 | raise |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1969 | |
| 1970 | # in2out 1st interface |
| 1971 | pkts = self.create_stream_in(self.pg4, self.pg3) |
| 1972 | self.pg4.add_stream(pkts) |
| 1973 | self.pg_enable_capture(self.pg_interfaces) |
| 1974 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1975 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1976 | self.verify_capture_out(capture) |
| 1977 | |
| 1978 | # out2in 1st interface |
| 1979 | pkts = self.create_stream_out(self.pg3) |
| 1980 | self.pg3.add_stream(pkts) |
| 1981 | self.pg_enable_capture(self.pg_interfaces) |
| 1982 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1983 | capture = self.pg4.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1984 | self.verify_capture_in(capture, self.pg4) |
| 1985 | |
| 1986 | # in2out 2nd interface |
| 1987 | pkts = self.create_stream_in(self.pg5, self.pg3) |
| 1988 | self.pg5.add_stream(pkts) |
| 1989 | self.pg_enable_capture(self.pg_interfaces) |
| 1990 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1991 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 1992 | self.verify_capture_out(capture) |
| 1993 | |
| 1994 | # out2in 2nd interface |
| 1995 | pkts = self.create_stream_out(self.pg3) |
| 1996 | self.pg3.add_stream(pkts) |
| 1997 | self.pg_enable_capture(self.pg_interfaces) |
| 1998 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 1999 | capture = self.pg5.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 2000 | self.verify_capture_in(capture, self.pg5) |
| 2001 | |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2002 | # pg5 session dump |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2003 | addresses = self.vapi.nat44_address_dump() |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2004 | self.assertEqual(len(addresses), 1) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2005 | sessions = self.vapi.nat44_user_session_dump(self.pg5.remote_ip4n, 10) |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2006 | self.assertEqual(len(sessions), 3) |
| 2007 | for session in sessions: |
| 2008 | self.assertFalse(session.is_static) |
| 2009 | self.assertEqual(session.inside_ip_address[0:4], |
| 2010 | self.pg5.remote_ip4n) |
| 2011 | self.assertEqual(session.outside_ip_address, |
| 2012 | addresses[0].ip_address) |
| 2013 | self.assertEqual(sessions[0].protocol, IP_PROTOS.tcp) |
| 2014 | self.assertEqual(sessions[1].protocol, IP_PROTOS.udp) |
| 2015 | self.assertEqual(sessions[2].protocol, IP_PROTOS.icmp) |
| 2016 | self.assertEqual(sessions[0].inside_port, self.tcp_port_in) |
| 2017 | self.assertEqual(sessions[1].inside_port, self.udp_port_in) |
| 2018 | self.assertEqual(sessions[2].inside_port, self.icmp_id_in) |
| 2019 | self.assertEqual(sessions[0].outside_port, self.tcp_port_out) |
| 2020 | self.assertEqual(sessions[1].outside_port, self.udp_port_out) |
| 2021 | self.assertEqual(sessions[2].outside_port, self.icmp_id_out) |
| 2022 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 2023 | # in2out 3rd interface |
| 2024 | pkts = self.create_stream_in(self.pg6, self.pg3) |
| 2025 | self.pg6.add_stream(pkts) |
| 2026 | self.pg_enable_capture(self.pg_interfaces) |
| 2027 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 2028 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 2029 | self.verify_capture_out(capture, static_nat_ip, True) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 2030 | |
| 2031 | # out2in 3rd interface |
Matus Fabian | 675a69c | 2017-01-18 01:46:01 -0800 | [diff] [blame] | 2032 | pkts = self.create_stream_out(self.pg3, static_nat_ip) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 2033 | self.pg3.add_stream(pkts) |
| 2034 | self.pg_enable_capture(self.pg_interfaces) |
| 2035 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 2036 | capture = self.pg6.get_capture(len(pkts)) |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 2037 | self.verify_capture_in(capture, self.pg6) |
| 2038 | |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2039 | # general user and session dump verifications |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2040 | users = self.vapi.nat44_user_dump() |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2041 | self.assertTrue(len(users) >= 3) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2042 | addresses = self.vapi.nat44_address_dump() |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2043 | self.assertEqual(len(addresses), 1) |
| 2044 | for user in users: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2045 | sessions = self.vapi.nat44_user_session_dump(user.ip_address, |
| 2046 | user.vrf_id) |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2047 | for session in sessions: |
| 2048 | self.assertEqual(user.ip_address, session.inside_ip_address) |
| 2049 | self.assertTrue(session.total_bytes > session.total_pkts > 0) |
| 2050 | self.assertTrue(session.protocol in |
| 2051 | [IP_PROTOS.tcp, IP_PROTOS.udp, |
| 2052 | IP_PROTOS.icmp]) |
| 2053 | |
| 2054 | # pg4 session dump |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2055 | sessions = self.vapi.nat44_user_session_dump(self.pg4.remote_ip4n, 10) |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2056 | self.assertTrue(len(sessions) >= 4) |
| 2057 | for session in sessions: |
| 2058 | self.assertFalse(session.is_static) |
| 2059 | self.assertEqual(session.inside_ip_address[0:4], |
| 2060 | self.pg4.remote_ip4n) |
| 2061 | self.assertEqual(session.outside_ip_address, |
| 2062 | addresses[0].ip_address) |
| 2063 | |
| 2064 | # pg6 session dump |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2065 | sessions = self.vapi.nat44_user_session_dump(self.pg6.remote_ip4n, 20) |
magalik | 23caa88 | 2017-02-08 23:25:45 -0800 | [diff] [blame] | 2066 | self.assertTrue(len(sessions) >= 3) |
| 2067 | for session in sessions: |
| 2068 | self.assertTrue(session.is_static) |
| 2069 | self.assertEqual(session.inside_ip_address[0:4], |
| 2070 | self.pg6.remote_ip4n) |
| 2071 | self.assertEqual(map(ord, session.outside_ip_address[0:4]), |
| 2072 | map(int, static_nat_ip.split('.'))) |
| 2073 | self.assertTrue(session.inside_port in |
| 2074 | [self.tcp_port_in, self.udp_port_in, |
| 2075 | self.icmp_id_in]) |
| 2076 | |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2077 | def test_hairpinning(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2078 | """ NAT44 hairpinning - 1:1 NAPT """ |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2079 | |
| 2080 | host = self.pg0.remote_hosts[0] |
| 2081 | server = self.pg0.remote_hosts[1] |
| 2082 | host_in_port = 1234 |
| 2083 | host_out_port = 0 |
| 2084 | server_in_port = 5678 |
| 2085 | server_out_port = 8765 |
| 2086 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2087 | self.nat44_add_address(self.nat_addr) |
| 2088 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2089 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2090 | is_inside=0) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2091 | # add static mapping for server |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2092 | self.nat44_add_static_mapping(server.ip4, self.nat_addr, |
| 2093 | server_in_port, server_out_port, |
| 2094 | proto=IP_PROTOS.tcp) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2095 | |
| 2096 | # send packet from host to server |
| 2097 | p = (Ether(src=host.mac, dst=self.pg0.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2098 | IP(src=host.ip4, dst=self.nat_addr) / |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2099 | TCP(sport=host_in_port, dport=server_out_port)) |
| 2100 | self.pg0.add_stream(p) |
| 2101 | self.pg_enable_capture(self.pg_interfaces) |
| 2102 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 2103 | capture = self.pg0.get_capture(1) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2104 | p = capture[0] |
| 2105 | try: |
| 2106 | ip = p[IP] |
| 2107 | tcp = p[TCP] |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2108 | self.assertEqual(ip.src, self.nat_addr) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2109 | self.assertEqual(ip.dst, server.ip4) |
| 2110 | self.assertNotEqual(tcp.sport, host_in_port) |
| 2111 | self.assertEqual(tcp.dport, server_in_port) |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2112 | self.check_tcp_checksum(p) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2113 | host_out_port = tcp.sport |
| 2114 | except: |
Klement Sekera | 9225dee | 2016-12-12 08:36:58 +0100 | [diff] [blame] | 2115 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2116 | raise |
| 2117 | |
| 2118 | # send reply from server to host |
| 2119 | p = (Ether(src=server.mac, dst=self.pg0.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2120 | IP(src=server.ip4, dst=self.nat_addr) / |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2121 | TCP(sport=server_in_port, dport=host_out_port)) |
| 2122 | self.pg0.add_stream(p) |
| 2123 | self.pg_enable_capture(self.pg_interfaces) |
| 2124 | self.pg_start() |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 2125 | capture = self.pg0.get_capture(1) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2126 | p = capture[0] |
| 2127 | try: |
| 2128 | ip = p[IP] |
| 2129 | tcp = p[TCP] |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2130 | self.assertEqual(ip.src, self.nat_addr) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2131 | self.assertEqual(ip.dst, host.ip4) |
| 2132 | self.assertEqual(tcp.sport, server_out_port) |
| 2133 | self.assertEqual(tcp.dport, host_in_port) |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2134 | self.check_tcp_checksum(p) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2135 | except: |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 2136 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
Matus Fabian | f78a70d | 2016-12-12 04:30:39 -0800 | [diff] [blame] | 2137 | raise |
| 2138 | |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2139 | def test_hairpinning2(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2140 | """ NAT44 hairpinning - 1:1 NAT""" |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2141 | |
| 2142 | server1_nat_ip = "10.0.0.10" |
| 2143 | server2_nat_ip = "10.0.0.11" |
| 2144 | host = self.pg0.remote_hosts[0] |
| 2145 | server1 = self.pg0.remote_hosts[1] |
| 2146 | server2 = self.pg0.remote_hosts[2] |
| 2147 | server_tcp_port = 22 |
| 2148 | server_udp_port = 20 |
| 2149 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2150 | self.nat44_add_address(self.nat_addr) |
| 2151 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2152 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2153 | is_inside=0) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2154 | |
| 2155 | # add static mapping for servers |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2156 | self.nat44_add_static_mapping(server1.ip4, server1_nat_ip) |
| 2157 | self.nat44_add_static_mapping(server2.ip4, server2_nat_ip) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2158 | |
| 2159 | # host to server1 |
| 2160 | pkts = [] |
| 2161 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2162 | IP(src=host.ip4, dst=server1_nat_ip) / |
| 2163 | TCP(sport=self.tcp_port_in, dport=server_tcp_port)) |
| 2164 | pkts.append(p) |
| 2165 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2166 | IP(src=host.ip4, dst=server1_nat_ip) / |
| 2167 | UDP(sport=self.udp_port_in, dport=server_udp_port)) |
| 2168 | pkts.append(p) |
| 2169 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2170 | IP(src=host.ip4, dst=server1_nat_ip) / |
| 2171 | ICMP(id=self.icmp_id_in, type='echo-request')) |
| 2172 | pkts.append(p) |
| 2173 | self.pg0.add_stream(pkts) |
| 2174 | self.pg_enable_capture(self.pg_interfaces) |
| 2175 | self.pg_start() |
| 2176 | capture = self.pg0.get_capture(len(pkts)) |
| 2177 | for packet in capture: |
| 2178 | try: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2179 | self.assertEqual(packet[IP].src, self.nat_addr) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2180 | self.assertEqual(packet[IP].dst, server1.ip4) |
| 2181 | if packet.haslayer(TCP): |
| 2182 | self.assertNotEqual(packet[TCP].sport, self.tcp_port_in) |
| 2183 | self.assertEqual(packet[TCP].dport, server_tcp_port) |
| 2184 | self.tcp_port_out = packet[TCP].sport |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2185 | self.check_tcp_checksum(packet) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2186 | elif packet.haslayer(UDP): |
| 2187 | self.assertNotEqual(packet[UDP].sport, self.udp_port_in) |
| 2188 | self.assertEqual(packet[UDP].dport, server_udp_port) |
| 2189 | self.udp_port_out = packet[UDP].sport |
| 2190 | else: |
| 2191 | self.assertNotEqual(packet[ICMP].id, self.icmp_id_in) |
| 2192 | self.icmp_id_out = packet[ICMP].id |
| 2193 | except: |
| 2194 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2195 | raise |
| 2196 | |
| 2197 | # server1 to host |
| 2198 | pkts = [] |
| 2199 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2200 | IP(src=server1.ip4, dst=self.nat_addr) / |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2201 | TCP(sport=server_tcp_port, dport=self.tcp_port_out)) |
| 2202 | pkts.append(p) |
| 2203 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2204 | IP(src=server1.ip4, dst=self.nat_addr) / |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2205 | UDP(sport=server_udp_port, dport=self.udp_port_out)) |
| 2206 | pkts.append(p) |
| 2207 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2208 | IP(src=server1.ip4, dst=self.nat_addr) / |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2209 | ICMP(id=self.icmp_id_out, type='echo-reply')) |
| 2210 | pkts.append(p) |
| 2211 | self.pg0.add_stream(pkts) |
| 2212 | self.pg_enable_capture(self.pg_interfaces) |
| 2213 | self.pg_start() |
| 2214 | capture = self.pg0.get_capture(len(pkts)) |
| 2215 | for packet in capture: |
| 2216 | try: |
| 2217 | self.assertEqual(packet[IP].src, server1_nat_ip) |
| 2218 | self.assertEqual(packet[IP].dst, host.ip4) |
| 2219 | if packet.haslayer(TCP): |
| 2220 | self.assertEqual(packet[TCP].dport, self.tcp_port_in) |
| 2221 | self.assertEqual(packet[TCP].sport, server_tcp_port) |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2222 | self.check_tcp_checksum(packet) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2223 | elif packet.haslayer(UDP): |
| 2224 | self.assertEqual(packet[UDP].dport, self.udp_port_in) |
| 2225 | self.assertEqual(packet[UDP].sport, server_udp_port) |
| 2226 | else: |
| 2227 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
| 2228 | except: |
| 2229 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2230 | raise |
| 2231 | |
| 2232 | # server2 to server1 |
| 2233 | pkts = [] |
| 2234 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2235 | IP(src=server2.ip4, dst=server1_nat_ip) / |
| 2236 | TCP(sport=self.tcp_port_in, dport=server_tcp_port)) |
| 2237 | pkts.append(p) |
| 2238 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2239 | IP(src=server2.ip4, dst=server1_nat_ip) / |
| 2240 | UDP(sport=self.udp_port_in, dport=server_udp_port)) |
| 2241 | pkts.append(p) |
| 2242 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2243 | IP(src=server2.ip4, dst=server1_nat_ip) / |
| 2244 | ICMP(id=self.icmp_id_in, type='echo-request')) |
| 2245 | pkts.append(p) |
| 2246 | self.pg0.add_stream(pkts) |
| 2247 | self.pg_enable_capture(self.pg_interfaces) |
| 2248 | self.pg_start() |
| 2249 | capture = self.pg0.get_capture(len(pkts)) |
| 2250 | for packet in capture: |
| 2251 | try: |
| 2252 | self.assertEqual(packet[IP].src, server2_nat_ip) |
| 2253 | self.assertEqual(packet[IP].dst, server1.ip4) |
| 2254 | if packet.haslayer(TCP): |
| 2255 | self.assertEqual(packet[TCP].sport, self.tcp_port_in) |
| 2256 | self.assertEqual(packet[TCP].dport, server_tcp_port) |
| 2257 | self.tcp_port_out = packet[TCP].sport |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2258 | self.check_tcp_checksum(packet) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2259 | elif packet.haslayer(UDP): |
| 2260 | self.assertEqual(packet[UDP].sport, self.udp_port_in) |
| 2261 | self.assertEqual(packet[UDP].dport, server_udp_port) |
| 2262 | self.udp_port_out = packet[UDP].sport |
| 2263 | else: |
| 2264 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
| 2265 | self.icmp_id_out = packet[ICMP].id |
| 2266 | except: |
| 2267 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2268 | raise |
| 2269 | |
| 2270 | # server1 to server2 |
| 2271 | pkts = [] |
| 2272 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2273 | IP(src=server1.ip4, dst=server2_nat_ip) / |
| 2274 | TCP(sport=server_tcp_port, dport=self.tcp_port_out)) |
| 2275 | pkts.append(p) |
| 2276 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2277 | IP(src=server1.ip4, dst=server2_nat_ip) / |
| 2278 | UDP(sport=server_udp_port, dport=self.udp_port_out)) |
| 2279 | pkts.append(p) |
| 2280 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2281 | IP(src=server1.ip4, dst=server2_nat_ip) / |
| 2282 | ICMP(id=self.icmp_id_out, type='echo-reply')) |
| 2283 | pkts.append(p) |
| 2284 | self.pg0.add_stream(pkts) |
| 2285 | self.pg_enable_capture(self.pg_interfaces) |
| 2286 | self.pg_start() |
| 2287 | capture = self.pg0.get_capture(len(pkts)) |
| 2288 | for packet in capture: |
| 2289 | try: |
| 2290 | self.assertEqual(packet[IP].src, server1_nat_ip) |
| 2291 | self.assertEqual(packet[IP].dst, server2.ip4) |
| 2292 | if packet.haslayer(TCP): |
| 2293 | self.assertEqual(packet[TCP].dport, self.tcp_port_in) |
| 2294 | self.assertEqual(packet[TCP].sport, server_tcp_port) |
Matus Fabian | 4b30ceb | 2017-06-09 02:33:30 -0700 | [diff] [blame] | 2295 | self.check_tcp_checksum(packet) |
Matus Fabian | 6fa74c6 | 2017-06-05 05:55:48 -0700 | [diff] [blame] | 2296 | elif packet.haslayer(UDP): |
| 2297 | self.assertEqual(packet[UDP].dport, self.udp_port_in) |
| 2298 | self.assertEqual(packet[UDP].sport, server_udp_port) |
| 2299 | else: |
| 2300 | self.assertEqual(packet[ICMP].id, self.icmp_id_in) |
| 2301 | except: |
| 2302 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2303 | raise |
| 2304 | |
Matus Fabian | 9902fcd | 2016-12-21 23:58:46 -0800 | [diff] [blame] | 2305 | def test_max_translations_per_user(self): |
| 2306 | """ MAX translations per user - recycle the least recently used """ |
| 2307 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2308 | self.nat44_add_address(self.nat_addr) |
| 2309 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2310 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2311 | is_inside=0) |
Matus Fabian | 9902fcd | 2016-12-21 23:58:46 -0800 | [diff] [blame] | 2312 | |
| 2313 | # get maximum number of translations per user |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2314 | nat44_config = self.vapi.nat_show_config() |
Matus Fabian | 9902fcd | 2016-12-21 23:58:46 -0800 | [diff] [blame] | 2315 | |
| 2316 | # send more than maximum number of translations per user packets |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2317 | pkts_num = nat44_config.max_translations_per_user + 5 |
Matus Fabian | 9902fcd | 2016-12-21 23:58:46 -0800 | [diff] [blame] | 2318 | pkts = [] |
| 2319 | for port in range(0, pkts_num): |
| 2320 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2321 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2322 | TCP(sport=1025 + port)) |
| 2323 | pkts.append(p) |
| 2324 | self.pg0.add_stream(pkts) |
| 2325 | self.pg_enable_capture(self.pg_interfaces) |
| 2326 | self.pg_start() |
| 2327 | |
| 2328 | # verify number of translated packet |
Klement Sekera | dab231a | 2016-12-21 08:50:14 +0100 | [diff] [blame] | 2329 | self.pg1.get_capture(pkts_num) |
Matus Fabian | 9902fcd | 2016-12-21 23:58:46 -0800 | [diff] [blame] | 2330 | |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2331 | def test_interface_addr(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2332 | """ Acquire NAT44 addresses from interface """ |
| 2333 | self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index) |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2334 | |
| 2335 | # no address in NAT pool |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2336 | adresses = self.vapi.nat44_address_dump() |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2337 | self.assertEqual(0, len(adresses)) |
| 2338 | |
| 2339 | # configure interface address and check NAT address pool |
| 2340 | self.pg7.config_ip4() |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2341 | adresses = self.vapi.nat44_address_dump() |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2342 | self.assertEqual(1, len(adresses)) |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2343 | self.assertEqual(adresses[0].ip_address[0:4], self.pg7.local_ip4n) |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2344 | |
| 2345 | # remove interface address and check NAT address pool |
| 2346 | self.pg7.unconfig_ip4() |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2347 | adresses = self.vapi.nat44_address_dump() |
Matus Fabian | 8bf68e8 | 2017-01-12 04:24:35 -0800 | [diff] [blame] | 2348 | self.assertEqual(0, len(adresses)) |
| 2349 | |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2350 | def test_interface_addr_static_mapping(self): |
| 2351 | """ Static mapping with addresses from interface """ |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 2352 | tag = "testTAG" |
| 2353 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2354 | self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index) |
| 2355 | self.nat44_add_static_mapping( |
| 2356 | '1.2.3.4', |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 2357 | external_sw_if_index=self.pg7.sw_if_index, |
| 2358 | tag=tag) |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2359 | |
Matus Fabian | e22e546 | 2017-02-14 23:33:43 -0800 | [diff] [blame] | 2360 | # static mappings with external interface |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2361 | static_mappings = self.vapi.nat44_static_mapping_dump() |
Matus Fabian | e22e546 | 2017-02-14 23:33:43 -0800 | [diff] [blame] | 2362 | self.assertEqual(1, len(static_mappings)) |
| 2363 | self.assertEqual(self.pg7.sw_if_index, |
| 2364 | static_mappings[0].external_sw_if_index) |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 2365 | self.assertEqual((static_mappings[0].tag).split('\0', 1)[0], tag) |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2366 | |
| 2367 | # configure interface address and check static mappings |
| 2368 | self.pg7.config_ip4() |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2369 | static_mappings = self.vapi.nat44_static_mapping_dump() |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2370 | self.assertEqual(1, len(static_mappings)) |
| 2371 | self.assertEqual(static_mappings[0].external_ip_address[0:4], |
| 2372 | self.pg7.local_ip4n) |
Matus Fabian | e22e546 | 2017-02-14 23:33:43 -0800 | [diff] [blame] | 2373 | self.assertEqual(0xFFFFFFFF, static_mappings[0].external_sw_if_index) |
Matus Fabian | 5f22499 | 2018-01-25 21:59:16 -0800 | [diff] [blame^] | 2374 | self.assertEqual((static_mappings[0].tag).split('\0', 1)[0], tag) |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2375 | |
| 2376 | # remove interface address and check static mappings |
| 2377 | self.pg7.unconfig_ip4() |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2378 | static_mappings = self.vapi.nat44_static_mapping_dump() |
Matus Fabian | 36532bd | 2017-01-23 23:42:28 -0800 | [diff] [blame] | 2379 | self.assertEqual(0, len(static_mappings)) |
| 2380 | |
Matus Fabian | ab7a805 | 2017-11-28 04:29:41 -0800 | [diff] [blame] | 2381 | def test_interface_addr_identity_nat(self): |
| 2382 | """ Identity NAT with addresses from interface """ |
| 2383 | |
| 2384 | port = 53053 |
| 2385 | self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index) |
| 2386 | self.vapi.nat44_add_del_identity_mapping( |
| 2387 | sw_if_index=self.pg7.sw_if_index, |
| 2388 | port=port, |
| 2389 | protocol=IP_PROTOS.tcp, |
| 2390 | addr_only=0) |
| 2391 | |
| 2392 | # identity mappings with external interface |
| 2393 | identity_mappings = self.vapi.nat44_identity_mapping_dump() |
| 2394 | self.assertEqual(1, len(identity_mappings)) |
| 2395 | self.assertEqual(self.pg7.sw_if_index, |
| 2396 | identity_mappings[0].sw_if_index) |
| 2397 | |
| 2398 | # configure interface address and check identity mappings |
| 2399 | self.pg7.config_ip4() |
| 2400 | identity_mappings = self.vapi.nat44_identity_mapping_dump() |
| 2401 | self.assertEqual(1, len(identity_mappings)) |
| 2402 | self.assertEqual(identity_mappings[0].ip_address, |
| 2403 | self.pg7.local_ip4n) |
| 2404 | self.assertEqual(0xFFFFFFFF, identity_mappings[0].sw_if_index) |
| 2405 | self.assertEqual(port, identity_mappings[0].port) |
| 2406 | self.assertEqual(IP_PROTOS.tcp, identity_mappings[0].protocol) |
| 2407 | |
| 2408 | # remove interface address and check identity mappings |
| 2409 | self.pg7.unconfig_ip4() |
| 2410 | identity_mappings = self.vapi.nat44_identity_mapping_dump() |
| 2411 | self.assertEqual(0, len(identity_mappings)) |
| 2412 | |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2413 | def test_ipfix_nat44_sess(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2414 | """ IPFIX logging NAT44 session created/delted """ |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 2415 | self.ipfix_domain_id = 10 |
| 2416 | self.ipfix_src_port = 20202 |
| 2417 | colector_port = 30303 |
| 2418 | bind_layers(UDP, IPFIX, dport=30303) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2419 | self.nat44_add_address(self.nat_addr) |
| 2420 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2421 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2422 | is_inside=0) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2423 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 2424 | src_address=self.pg3.local_ip4n, |
| 2425 | path_mtu=512, |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 2426 | template_interval=10, |
| 2427 | collector_port=colector_port) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2428 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 2429 | src_port=self.ipfix_src_port) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2430 | |
| 2431 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 2432 | self.pg0.add_stream(pkts) |
| 2433 | self.pg_enable_capture(self.pg_interfaces) |
| 2434 | self.pg_start() |
| 2435 | capture = self.pg1.get_capture(len(pkts)) |
| 2436 | self.verify_capture_out(capture) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2437 | self.nat44_add_address(self.nat_addr, is_add=0) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2438 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 2439 | capture = self.pg3.get_capture(9) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2440 | ipfix = IPFIXDecoder() |
| 2441 | # first load template |
| 2442 | for p in capture: |
| 2443 | self.assertTrue(p.haslayer(IPFIX)) |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 2444 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 2445 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 2446 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 2447 | self.assertEqual(p[UDP].dport, colector_port) |
| 2448 | self.assertEqual(p[IPFIX].observationDomainID, |
| 2449 | self.ipfix_domain_id) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2450 | if p.haslayer(Template): |
| 2451 | ipfix.add_template(p.getlayer(Template)) |
| 2452 | # verify events in data set |
| 2453 | for p in capture: |
| 2454 | if p.haslayer(Data): |
| 2455 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 2456 | self.verify_ipfix_nat44_ses(data) |
| 2457 | |
| 2458 | def test_ipfix_addr_exhausted(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2459 | """ IPFIX logging NAT addresses exhausted """ |
| 2460 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2461 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2462 | is_inside=0) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2463 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 2464 | src_address=self.pg3.local_ip4n, |
| 2465 | path_mtu=512, |
| 2466 | template_interval=10) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2467 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 2468 | src_port=self.ipfix_src_port) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2469 | |
| 2470 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 2471 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2472 | TCP(sport=3025)) |
| 2473 | self.pg0.add_stream(p) |
| 2474 | self.pg_enable_capture(self.pg_interfaces) |
| 2475 | self.pg_start() |
| 2476 | capture = self.pg1.get_capture(0) |
| 2477 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 2478 | capture = self.pg3.get_capture(9) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2479 | ipfix = IPFIXDecoder() |
| 2480 | # first load template |
| 2481 | for p in capture: |
| 2482 | self.assertTrue(p.haslayer(IPFIX)) |
Matus Fabian | 6631e9c | 2017-05-24 01:52:20 -0700 | [diff] [blame] | 2483 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 2484 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 2485 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 2486 | self.assertEqual(p[UDP].dport, 4739) |
| 2487 | self.assertEqual(p[IPFIX].observationDomainID, |
| 2488 | self.ipfix_domain_id) |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 2489 | if p.haslayer(Template): |
| 2490 | ipfix.add_template(p.getlayer(Template)) |
| 2491 | # verify events in data set |
| 2492 | for p in capture: |
| 2493 | if p.haslayer(Data): |
| 2494 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 2495 | self.verify_ipfix_addr_exhausted(data) |
| 2496 | |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 2497 | @unittest.skipUnless(running_extended_tests(), "part of extended tests") |
| 2498 | def test_ipfix_max_sessions(self): |
| 2499 | """ IPFIX logging maximum session entries exceeded """ |
| 2500 | self.nat44_add_address(self.nat_addr) |
| 2501 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2502 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2503 | is_inside=0) |
| 2504 | |
| 2505 | nat44_config = self.vapi.nat_show_config() |
| 2506 | max_sessions = 10 * nat44_config.translation_buckets |
| 2507 | |
| 2508 | pkts = [] |
| 2509 | for i in range(0, max_sessions): |
| 2510 | src = "10.10.%u.%u" % ((i & 0xFF00) >> 8, i & 0xFF) |
| 2511 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2512 | IP(src=src, dst=self.pg1.remote_ip4) / |
| 2513 | TCP(sport=1025)) |
| 2514 | pkts.append(p) |
| 2515 | self.pg0.add_stream(pkts) |
| 2516 | self.pg_enable_capture(self.pg_interfaces) |
| 2517 | self.pg_start() |
| 2518 | |
| 2519 | self.pg1.get_capture(max_sessions) |
| 2520 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 2521 | src_address=self.pg3.local_ip4n, |
| 2522 | path_mtu=512, |
| 2523 | template_interval=10) |
| 2524 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 2525 | src_port=self.ipfix_src_port) |
| 2526 | |
| 2527 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2528 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2529 | TCP(sport=1025)) |
| 2530 | self.pg0.add_stream(p) |
| 2531 | self.pg_enable_capture(self.pg_interfaces) |
| 2532 | self.pg_start() |
| 2533 | self.pg1.get_capture(0) |
| 2534 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 2535 | capture = self.pg3.get_capture(9) |
| 2536 | ipfix = IPFIXDecoder() |
| 2537 | # first load template |
| 2538 | for p in capture: |
| 2539 | self.assertTrue(p.haslayer(IPFIX)) |
| 2540 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 2541 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 2542 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 2543 | self.assertEqual(p[UDP].dport, 4739) |
| 2544 | self.assertEqual(p[IPFIX].observationDomainID, |
| 2545 | self.ipfix_domain_id) |
| 2546 | if p.haslayer(Template): |
| 2547 | ipfix.add_template(p.getlayer(Template)) |
| 2548 | # verify events in data set |
| 2549 | for p in capture: |
| 2550 | if p.haslayer(Data): |
| 2551 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 2552 | self.verify_ipfix_max_sessions(data, max_sessions) |
| 2553 | |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2554 | def test_pool_addr_fib(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2555 | """ NAT44 add pool addresses to FIB """ |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2556 | static_addr = '10.0.0.10' |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2557 | self.nat44_add_address(self.nat_addr) |
| 2558 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2559 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2560 | is_inside=0) |
| 2561 | self.nat44_add_static_mapping(self.pg0.remote_ip4, static_addr) |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2562 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2563 | # NAT44 address |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2564 | p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2565 | ARP(op=ARP.who_has, pdst=self.nat_addr, |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2566 | psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac)) |
| 2567 | self.pg1.add_stream(p) |
| 2568 | self.pg_enable_capture(self.pg_interfaces) |
| 2569 | self.pg_start() |
| 2570 | capture = self.pg1.get_capture(1) |
| 2571 | self.assertTrue(capture[0].haslayer(ARP)) |
| 2572 | self.assertTrue(capture[0][ARP].op, ARP.is_at) |
| 2573 | |
| 2574 | # 1:1 NAT address |
| 2575 | p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') / |
| 2576 | ARP(op=ARP.who_has, pdst=static_addr, |
| 2577 | psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac)) |
| 2578 | self.pg1.add_stream(p) |
| 2579 | self.pg_enable_capture(self.pg_interfaces) |
| 2580 | self.pg_start() |
| 2581 | capture = self.pg1.get_capture(1) |
| 2582 | self.assertTrue(capture[0].haslayer(ARP)) |
| 2583 | self.assertTrue(capture[0][ARP].op, ARP.is_at) |
| 2584 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2585 | # send ARP to non-NAT44 interface |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2586 | p = (Ether(src=self.pg2.remote_mac, dst='ff:ff:ff:ff:ff:ff') / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2587 | ARP(op=ARP.who_has, pdst=self.nat_addr, |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2588 | psrc=self.pg2.remote_ip4, hwsrc=self.pg2.remote_mac)) |
| 2589 | self.pg2.add_stream(p) |
| 2590 | self.pg_enable_capture(self.pg_interfaces) |
| 2591 | self.pg_start() |
| 2592 | capture = self.pg1.get_capture(0) |
| 2593 | |
| 2594 | # remove addresses and verify |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2595 | self.nat44_add_address(self.nat_addr, is_add=0) |
| 2596 | self.nat44_add_static_mapping(self.pg0.remote_ip4, static_addr, |
| 2597 | is_add=0) |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2598 | |
| 2599 | p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2600 | ARP(op=ARP.who_has, pdst=self.nat_addr, |
Matus Fabian | e1ae29a | 2017-01-27 00:47:58 -0800 | [diff] [blame] | 2601 | psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac)) |
| 2602 | self.pg1.add_stream(p) |
| 2603 | self.pg_enable_capture(self.pg_interfaces) |
| 2604 | self.pg_start() |
| 2605 | capture = self.pg1.get_capture(0) |
| 2606 | |
| 2607 | p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') / |
| 2608 | ARP(op=ARP.who_has, pdst=static_addr, |
| 2609 | psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac)) |
| 2610 | self.pg1.add_stream(p) |
| 2611 | self.pg_enable_capture(self.pg_interfaces) |
| 2612 | self.pg_start() |
| 2613 | capture = self.pg1.get_capture(0) |
| 2614 | |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2615 | def test_vrf_mode(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2616 | """ NAT44 tenant VRF aware address pool mode """ |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2617 | |
| 2618 | vrf_id1 = 1 |
| 2619 | vrf_id2 = 2 |
| 2620 | nat_ip1 = "10.0.0.10" |
| 2621 | nat_ip2 = "10.0.0.11" |
| 2622 | |
| 2623 | self.pg0.unconfig_ip4() |
| 2624 | self.pg1.unconfig_ip4() |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 2625 | self.vapi.ip_table_add_del(vrf_id1, is_add=1) |
| 2626 | self.vapi.ip_table_add_del(vrf_id2, is_add=1) |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2627 | self.pg0.set_table_ip4(vrf_id1) |
| 2628 | self.pg1.set_table_ip4(vrf_id2) |
| 2629 | self.pg0.config_ip4() |
| 2630 | self.pg1.config_ip4() |
| 2631 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2632 | self.nat44_add_address(nat_ip1, vrf_id=vrf_id1) |
| 2633 | self.nat44_add_address(nat_ip2, vrf_id=vrf_id2) |
| 2634 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2635 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index) |
| 2636 | self.vapi.nat44_interface_add_del_feature(self.pg2.sw_if_index, |
| 2637 | is_inside=0) |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2638 | |
| 2639 | # first VRF |
| 2640 | pkts = self.create_stream_in(self.pg0, self.pg2) |
| 2641 | self.pg0.add_stream(pkts) |
| 2642 | self.pg_enable_capture(self.pg_interfaces) |
| 2643 | self.pg_start() |
| 2644 | capture = self.pg2.get_capture(len(pkts)) |
| 2645 | self.verify_capture_out(capture, nat_ip1) |
| 2646 | |
| 2647 | # second VRF |
| 2648 | pkts = self.create_stream_in(self.pg1, self.pg2) |
| 2649 | self.pg1.add_stream(pkts) |
| 2650 | self.pg_enable_capture(self.pg_interfaces) |
| 2651 | self.pg_start() |
| 2652 | capture = self.pg2.get_capture(len(pkts)) |
| 2653 | self.verify_capture_out(capture, nat_ip2) |
| 2654 | |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 2655 | self.pg0.unconfig_ip4() |
| 2656 | self.pg1.unconfig_ip4() |
| 2657 | self.pg0.set_table_ip4(0) |
| 2658 | self.pg1.set_table_ip4(0) |
| 2659 | self.vapi.ip_table_add_del(vrf_id1, is_add=0) |
| 2660 | self.vapi.ip_table_add_del(vrf_id2, is_add=0) |
| 2661 | |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2662 | def test_vrf_feature_independent(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2663 | """ NAT44 tenant VRF independent address pool mode """ |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2664 | |
| 2665 | nat_ip1 = "10.0.0.10" |
| 2666 | nat_ip2 = "10.0.0.11" |
| 2667 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2668 | self.nat44_add_address(nat_ip1) |
Matus Fabian | 51e759f | 2017-12-07 23:22:51 -0800 | [diff] [blame] | 2669 | self.nat44_add_address(nat_ip2, vrf_id=99) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2670 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2671 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index) |
| 2672 | self.vapi.nat44_interface_add_del_feature(self.pg2.sw_if_index, |
| 2673 | is_inside=0) |
Juraj Sloboda | eab38d9 | 2017-03-06 19:55:21 -0800 | [diff] [blame] | 2674 | |
| 2675 | # first VRF |
| 2676 | pkts = self.create_stream_in(self.pg0, self.pg2) |
| 2677 | self.pg0.add_stream(pkts) |
| 2678 | self.pg_enable_capture(self.pg_interfaces) |
| 2679 | self.pg_start() |
| 2680 | capture = self.pg2.get_capture(len(pkts)) |
| 2681 | self.verify_capture_out(capture, nat_ip1) |
| 2682 | |
| 2683 | # second VRF |
| 2684 | pkts = self.create_stream_in(self.pg1, self.pg2) |
| 2685 | self.pg1.add_stream(pkts) |
| 2686 | self.pg_enable_capture(self.pg_interfaces) |
| 2687 | self.pg_start() |
| 2688 | capture = self.pg2.get_capture(len(pkts)) |
| 2689 | self.verify_capture_out(capture, nat_ip1) |
| 2690 | |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2691 | def test_dynamic_ipless_interfaces(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2692 | """ NAT44 interfaces without configured IP address """ |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2693 | |
| 2694 | self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2695 | mactobinary(self.pg7.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2696 | self.pg7.remote_ip4n, |
| 2697 | is_static=1) |
| 2698 | self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2699 | mactobinary(self.pg8.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2700 | self.pg8.remote_ip4n, |
| 2701 | is_static=1) |
| 2702 | |
| 2703 | self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n, |
| 2704 | dst_address_length=32, |
| 2705 | next_hop_address=self.pg7.remote_ip4n, |
| 2706 | next_hop_sw_if_index=self.pg7.sw_if_index) |
| 2707 | self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n, |
| 2708 | dst_address_length=32, |
| 2709 | next_hop_address=self.pg8.remote_ip4n, |
| 2710 | next_hop_sw_if_index=self.pg8.sw_if_index) |
| 2711 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2712 | self.nat44_add_address(self.nat_addr) |
| 2713 | self.vapi.nat44_interface_add_del_feature(self.pg7.sw_if_index) |
| 2714 | self.vapi.nat44_interface_add_del_feature(self.pg8.sw_if_index, |
| 2715 | is_inside=0) |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2716 | |
| 2717 | # in2out |
| 2718 | pkts = self.create_stream_in(self.pg7, self.pg8) |
| 2719 | self.pg7.add_stream(pkts) |
| 2720 | self.pg_enable_capture(self.pg_interfaces) |
| 2721 | self.pg_start() |
| 2722 | capture = self.pg8.get_capture(len(pkts)) |
| 2723 | self.verify_capture_out(capture) |
| 2724 | |
| 2725 | # out2in |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2726 | pkts = self.create_stream_out(self.pg8, self.nat_addr) |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2727 | self.pg8.add_stream(pkts) |
| 2728 | self.pg_enable_capture(self.pg_interfaces) |
| 2729 | self.pg_start() |
| 2730 | capture = self.pg7.get_capture(len(pkts)) |
| 2731 | self.verify_capture_in(capture, self.pg7) |
| 2732 | |
| 2733 | def test_static_ipless_interfaces(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2734 | """ NAT44 interfaces without configured IP address - 1:1 NAT """ |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2735 | |
| 2736 | self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2737 | mactobinary(self.pg7.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2738 | self.pg7.remote_ip4n, |
| 2739 | is_static=1) |
| 2740 | self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2741 | mactobinary(self.pg8.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2742 | self.pg8.remote_ip4n, |
| 2743 | is_static=1) |
| 2744 | |
| 2745 | self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n, |
| 2746 | dst_address_length=32, |
| 2747 | next_hop_address=self.pg7.remote_ip4n, |
| 2748 | next_hop_sw_if_index=self.pg7.sw_if_index) |
| 2749 | self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n, |
| 2750 | dst_address_length=32, |
| 2751 | next_hop_address=self.pg8.remote_ip4n, |
| 2752 | next_hop_sw_if_index=self.pg8.sw_if_index) |
| 2753 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2754 | self.nat44_add_static_mapping(self.pg7.remote_ip4, self.nat_addr) |
| 2755 | self.vapi.nat44_interface_add_del_feature(self.pg7.sw_if_index) |
| 2756 | self.vapi.nat44_interface_add_del_feature(self.pg8.sw_if_index, |
| 2757 | is_inside=0) |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2758 | |
| 2759 | # out2in |
| 2760 | pkts = self.create_stream_out(self.pg8) |
| 2761 | self.pg8.add_stream(pkts) |
| 2762 | self.pg_enable_capture(self.pg_interfaces) |
| 2763 | self.pg_start() |
| 2764 | capture = self.pg7.get_capture(len(pkts)) |
| 2765 | self.verify_capture_in(capture, self.pg7) |
| 2766 | |
| 2767 | # in2out |
| 2768 | pkts = self.create_stream_in(self.pg7, self.pg8) |
| 2769 | self.pg7.add_stream(pkts) |
| 2770 | self.pg_enable_capture(self.pg_interfaces) |
| 2771 | self.pg_start() |
| 2772 | capture = self.pg8.get_capture(len(pkts)) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2773 | self.verify_capture_out(capture, self.nat_addr, True) |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2774 | |
| 2775 | def test_static_with_port_ipless_interfaces(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2776 | """ NAT44 interfaces without configured IP address - 1:1 NAPT """ |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2777 | |
| 2778 | self.tcp_port_out = 30606 |
| 2779 | self.udp_port_out = 30607 |
| 2780 | self.icmp_id_out = 30608 |
| 2781 | |
| 2782 | self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2783 | mactobinary(self.pg7.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2784 | self.pg7.remote_ip4n, |
| 2785 | is_static=1) |
| 2786 | self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index, |
Ole Troan | 895b6e8 | 2017-10-20 13:28:20 +0200 | [diff] [blame] | 2787 | mactobinary(self.pg8.remote_mac), |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2788 | self.pg8.remote_ip4n, |
| 2789 | is_static=1) |
| 2790 | |
| 2791 | self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n, |
| 2792 | dst_address_length=32, |
| 2793 | next_hop_address=self.pg7.remote_ip4n, |
| 2794 | next_hop_sw_if_index=self.pg7.sw_if_index) |
| 2795 | self.vapi.ip_add_del_route(dst_address=self.pg8.remote_ip4n, |
| 2796 | dst_address_length=32, |
| 2797 | next_hop_address=self.pg8.remote_ip4n, |
| 2798 | next_hop_sw_if_index=self.pg8.sw_if_index) |
| 2799 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2800 | self.nat44_add_address(self.nat_addr) |
| 2801 | self.nat44_add_static_mapping(self.pg7.remote_ip4, self.nat_addr, |
| 2802 | self.tcp_port_in, self.tcp_port_out, |
| 2803 | proto=IP_PROTOS.tcp) |
| 2804 | self.nat44_add_static_mapping(self.pg7.remote_ip4, self.nat_addr, |
| 2805 | self.udp_port_in, self.udp_port_out, |
| 2806 | proto=IP_PROTOS.udp) |
| 2807 | self.nat44_add_static_mapping(self.pg7.remote_ip4, self.nat_addr, |
| 2808 | self.icmp_id_in, self.icmp_id_out, |
| 2809 | proto=IP_PROTOS.icmp) |
| 2810 | self.vapi.nat44_interface_add_del_feature(self.pg7.sw_if_index) |
| 2811 | self.vapi.nat44_interface_add_del_feature(self.pg8.sw_if_index, |
| 2812 | is_inside=0) |
Martin Gálik | 406eb1d | 2017-05-04 04:35:04 -0700 | [diff] [blame] | 2813 | |
| 2814 | # out2in |
| 2815 | pkts = self.create_stream_out(self.pg8) |
| 2816 | self.pg8.add_stream(pkts) |
| 2817 | self.pg_enable_capture(self.pg_interfaces) |
| 2818 | self.pg_start() |
| 2819 | capture = self.pg7.get_capture(len(pkts)) |
| 2820 | self.verify_capture_in(capture, self.pg7) |
| 2821 | |
| 2822 | # in2out |
| 2823 | pkts = self.create_stream_in(self.pg7, self.pg8) |
| 2824 | self.pg7.add_stream(pkts) |
| 2825 | self.pg_enable_capture(self.pg_interfaces) |
| 2826 | self.pg_start() |
| 2827 | capture = self.pg8.get_capture(len(pkts)) |
| 2828 | self.verify_capture_out(capture) |
| 2829 | |
Matus Fabian | 328dbc8 | 2017-06-19 04:28:04 -0700 | [diff] [blame] | 2830 | def test_static_unknown_proto(self): |
| 2831 | """ 1:1 NAT translate packet with unknown protocol """ |
| 2832 | nat_ip = "10.0.0.10" |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2833 | self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip) |
| 2834 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2835 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2836 | is_inside=0) |
Matus Fabian | 328dbc8 | 2017-06-19 04:28:04 -0700 | [diff] [blame] | 2837 | |
| 2838 | # in2out |
| 2839 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2840 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2841 | GRE() / |
Matus Fabian | 1e8db5f | 2017-06-20 01:45:49 -0700 | [diff] [blame] | 2842 | IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4) / |
Matus Fabian | 328dbc8 | 2017-06-19 04:28:04 -0700 | [diff] [blame] | 2843 | TCP(sport=1234, dport=1234)) |
| 2844 | self.pg0.add_stream(p) |
| 2845 | self.pg_enable_capture(self.pg_interfaces) |
| 2846 | self.pg_start() |
| 2847 | p = self.pg1.get_capture(1) |
| 2848 | packet = p[0] |
| 2849 | try: |
| 2850 | self.assertEqual(packet[IP].src, nat_ip) |
| 2851 | self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) |
| 2852 | self.assertTrue(packet.haslayer(GRE)) |
| 2853 | self.check_ip_checksum(packet) |
| 2854 | except: |
| 2855 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2856 | raise |
| 2857 | |
| 2858 | # out2in |
| 2859 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 2860 | IP(src=self.pg1.remote_ip4, dst=nat_ip) / |
| 2861 | GRE() / |
Matus Fabian | 1e8db5f | 2017-06-20 01:45:49 -0700 | [diff] [blame] | 2862 | IP(src=self.pg3.remote_ip4, dst=self.pg2.remote_ip4) / |
Matus Fabian | 328dbc8 | 2017-06-19 04:28:04 -0700 | [diff] [blame] | 2863 | TCP(sport=1234, dport=1234)) |
| 2864 | self.pg1.add_stream(p) |
| 2865 | self.pg_enable_capture(self.pg_interfaces) |
| 2866 | self.pg_start() |
| 2867 | p = self.pg0.get_capture(1) |
| 2868 | packet = p[0] |
| 2869 | try: |
| 2870 | self.assertEqual(packet[IP].src, self.pg1.remote_ip4) |
| 2871 | self.assertEqual(packet[IP].dst, self.pg0.remote_ip4) |
| 2872 | self.assertTrue(packet.haslayer(GRE)) |
| 2873 | self.check_ip_checksum(packet) |
| 2874 | except: |
| 2875 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2876 | raise |
| 2877 | |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2878 | def test_hairpinning_static_unknown_proto(self): |
Matus Fabian | 1e8db5f | 2017-06-20 01:45:49 -0700 | [diff] [blame] | 2879 | """ 1:1 NAT translate packet with unknown protocol - hairpinning """ |
| 2880 | |
| 2881 | host = self.pg0.remote_hosts[0] |
| 2882 | server = self.pg0.remote_hosts[1] |
| 2883 | |
| 2884 | host_nat_ip = "10.0.0.10" |
| 2885 | server_nat_ip = "10.0.0.11" |
| 2886 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2887 | self.nat44_add_static_mapping(host.ip4, host_nat_ip) |
| 2888 | self.nat44_add_static_mapping(server.ip4, server_nat_ip) |
| 2889 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2890 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2891 | is_inside=0) |
Matus Fabian | 1e8db5f | 2017-06-20 01:45:49 -0700 | [diff] [blame] | 2892 | |
| 2893 | # host to server |
| 2894 | p = (Ether(dst=self.pg0.local_mac, src=host.mac) / |
| 2895 | IP(src=host.ip4, dst=server_nat_ip) / |
| 2896 | GRE() / |
| 2897 | IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4) / |
| 2898 | TCP(sport=1234, dport=1234)) |
| 2899 | self.pg0.add_stream(p) |
| 2900 | self.pg_enable_capture(self.pg_interfaces) |
| 2901 | self.pg_start() |
| 2902 | p = self.pg0.get_capture(1) |
| 2903 | packet = p[0] |
| 2904 | try: |
| 2905 | self.assertEqual(packet[IP].src, host_nat_ip) |
| 2906 | self.assertEqual(packet[IP].dst, server.ip4) |
| 2907 | self.assertTrue(packet.haslayer(GRE)) |
| 2908 | self.check_ip_checksum(packet) |
| 2909 | except: |
| 2910 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2911 | raise |
| 2912 | |
| 2913 | # server to host |
| 2914 | p = (Ether(dst=self.pg0.local_mac, src=server.mac) / |
| 2915 | IP(src=server.ip4, dst=host_nat_ip) / |
| 2916 | GRE() / |
| 2917 | IP(src=self.pg3.remote_ip4, dst=self.pg2.remote_ip4) / |
| 2918 | TCP(sport=1234, dport=1234)) |
| 2919 | self.pg0.add_stream(p) |
| 2920 | self.pg_enable_capture(self.pg_interfaces) |
| 2921 | self.pg_start() |
| 2922 | p = self.pg0.get_capture(1) |
| 2923 | packet = p[0] |
| 2924 | try: |
| 2925 | self.assertEqual(packet[IP].src, server_nat_ip) |
| 2926 | self.assertEqual(packet[IP].dst, host.ip4) |
| 2927 | self.assertTrue(packet.haslayer(GRE)) |
| 2928 | self.check_ip_checksum(packet) |
| 2929 | except: |
| 2930 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2931 | raise |
| 2932 | |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2933 | def test_unknown_proto(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2934 | """ NAT44 translate packet with unknown protocol """ |
| 2935 | self.nat44_add_address(self.nat_addr) |
| 2936 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 2937 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 2938 | is_inside=0) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2939 | |
| 2940 | # in2out |
| 2941 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2942 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2943 | TCP(sport=self.tcp_port_in, dport=20)) |
| 2944 | self.pg0.add_stream(p) |
| 2945 | self.pg_enable_capture(self.pg_interfaces) |
| 2946 | self.pg_start() |
| 2947 | p = self.pg1.get_capture(1) |
| 2948 | |
| 2949 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 2950 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 2951 | GRE() / |
| 2952 | IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4) / |
| 2953 | TCP(sport=1234, dport=1234)) |
| 2954 | self.pg0.add_stream(p) |
| 2955 | self.pg_enable_capture(self.pg_interfaces) |
| 2956 | self.pg_start() |
| 2957 | p = self.pg1.get_capture(1) |
| 2958 | packet = p[0] |
| 2959 | try: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2960 | self.assertEqual(packet[IP].src, self.nat_addr) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2961 | self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) |
| 2962 | self.assertTrue(packet.haslayer(GRE)) |
| 2963 | self.check_ip_checksum(packet) |
| 2964 | except: |
| 2965 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2966 | raise |
| 2967 | |
| 2968 | # out2in |
| 2969 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2970 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2971 | GRE() / |
| 2972 | IP(src=self.pg3.remote_ip4, dst=self.pg2.remote_ip4) / |
| 2973 | TCP(sport=1234, dport=1234)) |
| 2974 | self.pg1.add_stream(p) |
| 2975 | self.pg_enable_capture(self.pg_interfaces) |
| 2976 | self.pg_start() |
| 2977 | p = self.pg0.get_capture(1) |
| 2978 | packet = p[0] |
| 2979 | try: |
| 2980 | self.assertEqual(packet[IP].src, self.pg1.remote_ip4) |
| 2981 | self.assertEqual(packet[IP].dst, self.pg0.remote_ip4) |
| 2982 | self.assertTrue(packet.haslayer(GRE)) |
| 2983 | self.check_ip_checksum(packet) |
| 2984 | except: |
| 2985 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 2986 | raise |
| 2987 | |
| 2988 | def test_hairpinning_unknown_proto(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2989 | """ NAT44 translate packet with unknown protocol - hairpinning """ |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 2990 | host = self.pg0.remote_hosts[0] |
| 2991 | server = self.pg0.remote_hosts[1] |
| 2992 | host_in_port = 1234 |
| 2993 | host_out_port = 0 |
| 2994 | server_in_port = 5678 |
| 2995 | server_out_port = 8765 |
| 2996 | server_nat_ip = "10.0.0.11" |
| 2997 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 2998 | self.nat44_add_address(self.nat_addr) |
| 2999 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3000 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3001 | is_inside=0) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 3002 | |
| 3003 | # add static mapping for server |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3004 | self.nat44_add_static_mapping(server.ip4, server_nat_ip) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 3005 | |
| 3006 | # host to server |
| 3007 | p = (Ether(src=host.mac, dst=self.pg0.local_mac) / |
| 3008 | IP(src=host.ip4, dst=server_nat_ip) / |
| 3009 | TCP(sport=host_in_port, dport=server_out_port)) |
| 3010 | self.pg0.add_stream(p) |
| 3011 | self.pg_enable_capture(self.pg_interfaces) |
| 3012 | self.pg_start() |
| 3013 | capture = self.pg0.get_capture(1) |
| 3014 | |
| 3015 | p = (Ether(dst=self.pg0.local_mac, src=host.mac) / |
| 3016 | IP(src=host.ip4, dst=server_nat_ip) / |
| 3017 | GRE() / |
| 3018 | IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4) / |
| 3019 | TCP(sport=1234, dport=1234)) |
| 3020 | self.pg0.add_stream(p) |
| 3021 | self.pg_enable_capture(self.pg_interfaces) |
| 3022 | self.pg_start() |
| 3023 | p = self.pg0.get_capture(1) |
| 3024 | packet = p[0] |
| 3025 | try: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3026 | self.assertEqual(packet[IP].src, self.nat_addr) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 3027 | self.assertEqual(packet[IP].dst, server.ip4) |
| 3028 | self.assertTrue(packet.haslayer(GRE)) |
| 3029 | self.check_ip_checksum(packet) |
| 3030 | except: |
| 3031 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 3032 | raise |
| 3033 | |
| 3034 | # server to host |
| 3035 | p = (Ether(dst=self.pg0.local_mac, src=server.mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3036 | IP(src=server.ip4, dst=self.nat_addr) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 3037 | GRE() / |
| 3038 | IP(src=self.pg3.remote_ip4, dst=self.pg2.remote_ip4) / |
| 3039 | TCP(sport=1234, dport=1234)) |
| 3040 | self.pg0.add_stream(p) |
| 3041 | self.pg_enable_capture(self.pg_interfaces) |
| 3042 | self.pg_start() |
| 3043 | p = self.pg0.get_capture(1) |
| 3044 | packet = p[0] |
| 3045 | try: |
| 3046 | self.assertEqual(packet[IP].src, server_nat_ip) |
| 3047 | self.assertEqual(packet[IP].dst, host.ip4) |
| 3048 | self.assertTrue(packet.haslayer(GRE)) |
| 3049 | self.check_ip_checksum(packet) |
| 3050 | except: |
| 3051 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 3052 | raise |
| 3053 | |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3054 | def test_output_feature(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3055 | """ NAT44 interface output feature (in2out postrouting) """ |
| 3056 | self.nat44_add_address(self.nat_addr) |
| 3057 | self.vapi.nat44_interface_add_del_output_feature(self.pg0.sw_if_index) |
Matus Fabian | b2d2fc7 | 2017-09-10 22:17:47 -0700 | [diff] [blame] | 3058 | self.vapi.nat44_interface_add_del_output_feature(self.pg1.sw_if_index) |
| 3059 | self.vapi.nat44_interface_add_del_output_feature(self.pg3.sw_if_index, |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3060 | is_inside=0) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3061 | |
| 3062 | # in2out |
Matus Fabian | b2d2fc7 | 2017-09-10 22:17:47 -0700 | [diff] [blame] | 3063 | pkts = self.create_stream_in(self.pg0, self.pg3) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3064 | self.pg0.add_stream(pkts) |
| 3065 | self.pg_enable_capture(self.pg_interfaces) |
| 3066 | self.pg_start() |
Matus Fabian | b2d2fc7 | 2017-09-10 22:17:47 -0700 | [diff] [blame] | 3067 | capture = self.pg3.get_capture(len(pkts)) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3068 | self.verify_capture_out(capture) |
| 3069 | |
| 3070 | # out2in |
Matus Fabian | b2d2fc7 | 2017-09-10 22:17:47 -0700 | [diff] [blame] | 3071 | pkts = self.create_stream_out(self.pg3) |
| 3072 | self.pg3.add_stream(pkts) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3073 | self.pg_enable_capture(self.pg_interfaces) |
| 3074 | self.pg_start() |
| 3075 | capture = self.pg0.get_capture(len(pkts)) |
| 3076 | self.verify_capture_in(capture, self.pg0) |
| 3077 | |
Matus Fabian | b2d2fc7 | 2017-09-10 22:17:47 -0700 | [diff] [blame] | 3078 | # from non-NAT interface to NAT inside interface |
| 3079 | pkts = self.create_stream_in(self.pg2, self.pg0) |
| 3080 | self.pg2.add_stream(pkts) |
| 3081 | self.pg_enable_capture(self.pg_interfaces) |
| 3082 | self.pg_start() |
| 3083 | capture = self.pg0.get_capture(len(pkts)) |
| 3084 | self.verify_capture_no_translation(capture, self.pg2, self.pg0) |
| 3085 | |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3086 | def test_output_feature_vrf_aware(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3087 | """ NAT44 interface output feature VRF aware (in2out postrouting) """ |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3088 | nat_ip_vrf10 = "10.0.0.10" |
| 3089 | nat_ip_vrf20 = "10.0.0.20" |
| 3090 | |
| 3091 | self.vapi.ip_add_del_route(dst_address=self.pg3.remote_ip4n, |
| 3092 | dst_address_length=32, |
| 3093 | next_hop_address=self.pg3.remote_ip4n, |
| 3094 | next_hop_sw_if_index=self.pg3.sw_if_index, |
| 3095 | table_id=10) |
| 3096 | self.vapi.ip_add_del_route(dst_address=self.pg3.remote_ip4n, |
| 3097 | dst_address_length=32, |
| 3098 | next_hop_address=self.pg3.remote_ip4n, |
| 3099 | next_hop_sw_if_index=self.pg3.sw_if_index, |
| 3100 | table_id=20) |
| 3101 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3102 | self.nat44_add_address(nat_ip_vrf10, vrf_id=10) |
| 3103 | self.nat44_add_address(nat_ip_vrf20, vrf_id=20) |
| 3104 | self.vapi.nat44_interface_add_del_output_feature(self.pg4.sw_if_index) |
| 3105 | self.vapi.nat44_interface_add_del_output_feature(self.pg6.sw_if_index) |
| 3106 | self.vapi.nat44_interface_add_del_output_feature(self.pg3.sw_if_index, |
| 3107 | is_inside=0) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3108 | |
| 3109 | # in2out VRF 10 |
| 3110 | pkts = self.create_stream_in(self.pg4, self.pg3) |
| 3111 | self.pg4.add_stream(pkts) |
| 3112 | self.pg_enable_capture(self.pg_interfaces) |
| 3113 | self.pg_start() |
| 3114 | capture = self.pg3.get_capture(len(pkts)) |
| 3115 | self.verify_capture_out(capture, nat_ip=nat_ip_vrf10) |
| 3116 | |
| 3117 | # out2in VRF 10 |
| 3118 | pkts = self.create_stream_out(self.pg3, dst_ip=nat_ip_vrf10) |
| 3119 | self.pg3.add_stream(pkts) |
| 3120 | self.pg_enable_capture(self.pg_interfaces) |
| 3121 | self.pg_start() |
| 3122 | capture = self.pg4.get_capture(len(pkts)) |
| 3123 | self.verify_capture_in(capture, self.pg4) |
| 3124 | |
| 3125 | # in2out VRF 20 |
| 3126 | pkts = self.create_stream_in(self.pg6, self.pg3) |
| 3127 | self.pg6.add_stream(pkts) |
| 3128 | self.pg_enable_capture(self.pg_interfaces) |
| 3129 | self.pg_start() |
| 3130 | capture = self.pg3.get_capture(len(pkts)) |
| 3131 | self.verify_capture_out(capture, nat_ip=nat_ip_vrf20) |
| 3132 | |
| 3133 | # out2in VRF 20 |
| 3134 | pkts = self.create_stream_out(self.pg3, dst_ip=nat_ip_vrf20) |
| 3135 | self.pg3.add_stream(pkts) |
| 3136 | self.pg_enable_capture(self.pg_interfaces) |
| 3137 | self.pg_start() |
| 3138 | capture = self.pg6.get_capture(len(pkts)) |
| 3139 | self.verify_capture_in(capture, self.pg6) |
| 3140 | |
Matus Fabian | 161c59c | 2017-07-21 03:46:03 -0700 | [diff] [blame] | 3141 | def test_output_feature_hairpinning(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3142 | """ NAT44 interface output feature hairpinning (in2out postrouting) """ |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3143 | host = self.pg0.remote_hosts[0] |
| 3144 | server = self.pg0.remote_hosts[1] |
| 3145 | host_in_port = 1234 |
| 3146 | host_out_port = 0 |
| 3147 | server_in_port = 5678 |
| 3148 | server_out_port = 8765 |
| 3149 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3150 | self.nat44_add_address(self.nat_addr) |
| 3151 | self.vapi.nat44_interface_add_del_output_feature(self.pg0.sw_if_index) |
| 3152 | self.vapi.nat44_interface_add_del_output_feature(self.pg1.sw_if_index, |
| 3153 | is_inside=0) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3154 | |
| 3155 | # add static mapping for server |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3156 | self.nat44_add_static_mapping(server.ip4, self.nat_addr, |
| 3157 | server_in_port, server_out_port, |
| 3158 | proto=IP_PROTOS.tcp) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3159 | |
| 3160 | # send packet from host to server |
| 3161 | p = (Ether(src=host.mac, dst=self.pg0.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3162 | IP(src=host.ip4, dst=self.nat_addr) / |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3163 | TCP(sport=host_in_port, dport=server_out_port)) |
| 3164 | self.pg0.add_stream(p) |
| 3165 | self.pg_enable_capture(self.pg_interfaces) |
| 3166 | self.pg_start() |
| 3167 | capture = self.pg0.get_capture(1) |
| 3168 | p = capture[0] |
| 3169 | try: |
| 3170 | ip = p[IP] |
| 3171 | tcp = p[TCP] |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3172 | self.assertEqual(ip.src, self.nat_addr) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3173 | self.assertEqual(ip.dst, server.ip4) |
| 3174 | self.assertNotEqual(tcp.sport, host_in_port) |
| 3175 | self.assertEqual(tcp.dport, server_in_port) |
| 3176 | self.check_tcp_checksum(p) |
| 3177 | host_out_port = tcp.sport |
| 3178 | except: |
| 3179 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3180 | raise |
| 3181 | |
| 3182 | # send reply from server to host |
| 3183 | p = (Ether(src=server.mac, dst=self.pg0.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3184 | IP(src=server.ip4, dst=self.nat_addr) / |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3185 | TCP(sport=server_in_port, dport=host_out_port)) |
| 3186 | self.pg0.add_stream(p) |
| 3187 | self.pg_enable_capture(self.pg_interfaces) |
| 3188 | self.pg_start() |
| 3189 | capture = self.pg0.get_capture(1) |
| 3190 | p = capture[0] |
| 3191 | try: |
| 3192 | ip = p[IP] |
| 3193 | tcp = p[TCP] |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3194 | self.assertEqual(ip.src, self.nat_addr) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3195 | self.assertEqual(ip.dst, host.ip4) |
| 3196 | self.assertEqual(tcp.sport, server_out_port) |
| 3197 | self.assertEqual(tcp.dport, host_in_port) |
| 3198 | self.check_tcp_checksum(p) |
| 3199 | except: |
Matus Fabian | e82488f | 2018-01-18 03:38:45 -0800 | [diff] [blame] | 3200 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
Matus Fabian | 93d84c9 | 2017-07-19 08:06:01 -0700 | [diff] [blame] | 3201 | raise |
| 3202 | |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 3203 | def test_one_armed_nat44(self): |
| 3204 | """ One armed NAT44 """ |
| 3205 | remote_host = self.pg9.remote_hosts[0] |
| 3206 | local_host = self.pg9.remote_hosts[1] |
| 3207 | external_port = 0 |
| 3208 | |
| 3209 | self.nat44_add_address(self.nat_addr) |
| 3210 | self.vapi.nat44_interface_add_del_feature(self.pg9.sw_if_index) |
| 3211 | self.vapi.nat44_interface_add_del_feature(self.pg9.sw_if_index, |
| 3212 | is_inside=0) |
| 3213 | |
| 3214 | # in2out |
| 3215 | p = (Ether(src=self.pg9.remote_mac, dst=self.pg9.local_mac) / |
| 3216 | IP(src=local_host.ip4, dst=remote_host.ip4) / |
| 3217 | TCP(sport=12345, dport=80)) |
| 3218 | self.pg9.add_stream(p) |
| 3219 | self.pg_enable_capture(self.pg_interfaces) |
| 3220 | self.pg_start() |
| 3221 | capture = self.pg9.get_capture(1) |
| 3222 | p = capture[0] |
| 3223 | try: |
| 3224 | ip = p[IP] |
| 3225 | tcp = p[TCP] |
| 3226 | self.assertEqual(ip.src, self.nat_addr) |
| 3227 | self.assertEqual(ip.dst, remote_host.ip4) |
| 3228 | self.assertNotEqual(tcp.sport, 12345) |
| 3229 | external_port = tcp.sport |
| 3230 | self.assertEqual(tcp.dport, 80) |
| 3231 | self.check_tcp_checksum(p) |
| 3232 | self.check_ip_checksum(p) |
| 3233 | except: |
| 3234 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3235 | raise |
| 3236 | |
| 3237 | # out2in |
| 3238 | p = (Ether(src=self.pg9.remote_mac, dst=self.pg9.local_mac) / |
| 3239 | IP(src=remote_host.ip4, dst=self.nat_addr) / |
| 3240 | TCP(sport=80, dport=external_port)) |
| 3241 | self.pg9.add_stream(p) |
| 3242 | self.pg_enable_capture(self.pg_interfaces) |
| 3243 | self.pg_start() |
| 3244 | capture = self.pg9.get_capture(1) |
| 3245 | p = capture[0] |
| 3246 | try: |
| 3247 | ip = p[IP] |
| 3248 | tcp = p[TCP] |
| 3249 | self.assertEqual(ip.src, remote_host.ip4) |
| 3250 | self.assertEqual(ip.dst, local_host.ip4) |
| 3251 | self.assertEqual(tcp.sport, 80) |
| 3252 | self.assertEqual(tcp.dport, 12345) |
| 3253 | self.check_tcp_checksum(p) |
| 3254 | self.check_ip_checksum(p) |
| 3255 | except: |
| 3256 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3257 | raise |
| 3258 | |
Matus Fabian | d95c39e | 2018-01-23 06:07:01 -0800 | [diff] [blame] | 3259 | def test_one_armed_nat44_static(self): |
| 3260 | """ One armed NAT44 and 1:1 NAPT symmetrical rule """ |
| 3261 | remote_host = self.pg9.remote_hosts[0] |
| 3262 | local_host = self.pg9.remote_hosts[1] |
| 3263 | external_port = 80 |
| 3264 | local_port = 8080 |
| 3265 | eh_port_in = 0 |
| 3266 | |
| 3267 | self.vapi.nat44_forwarding_enable_disable(1) |
| 3268 | self.nat44_add_address(self.nat_addr, twice_nat=1) |
| 3269 | self.nat44_add_static_mapping(local_host.ip4, self.nat_addr, |
| 3270 | local_port, external_port, |
| 3271 | proto=IP_PROTOS.tcp, out2in_only=1, |
| 3272 | twice_nat=1) |
| 3273 | self.vapi.nat44_interface_add_del_feature(self.pg9.sw_if_index) |
| 3274 | self.vapi.nat44_interface_add_del_feature(self.pg9.sw_if_index, |
| 3275 | is_inside=0) |
| 3276 | |
| 3277 | # from client to service |
| 3278 | p = (Ether(src=self.pg9.remote_mac, dst=self.pg9.local_mac) / |
| 3279 | IP(src=remote_host.ip4, dst=self.nat_addr) / |
| 3280 | TCP(sport=12345, dport=external_port)) |
| 3281 | self.pg9.add_stream(p) |
| 3282 | self.pg_enable_capture(self.pg_interfaces) |
| 3283 | self.pg_start() |
| 3284 | capture = self.pg9.get_capture(1) |
| 3285 | p = capture[0] |
| 3286 | server = None |
| 3287 | try: |
| 3288 | ip = p[IP] |
| 3289 | tcp = p[TCP] |
| 3290 | self.assertEqual(ip.dst, local_host.ip4) |
| 3291 | self.assertEqual(ip.src, self.nat_addr) |
| 3292 | self.assertEqual(tcp.dport, local_port) |
| 3293 | self.assertNotEqual(tcp.sport, 12345) |
| 3294 | eh_port_in = tcp.sport |
| 3295 | self.check_tcp_checksum(p) |
| 3296 | self.check_ip_checksum(p) |
| 3297 | except: |
| 3298 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3299 | raise |
| 3300 | |
| 3301 | # from service back to client |
| 3302 | p = (Ether(src=self.pg9.remote_mac, dst=self.pg9.local_mac) / |
| 3303 | IP(src=local_host.ip4, dst=self.nat_addr) / |
| 3304 | TCP(sport=local_port, dport=eh_port_in)) |
| 3305 | self.pg9.add_stream(p) |
| 3306 | self.pg_enable_capture(self.pg_interfaces) |
| 3307 | self.pg_start() |
| 3308 | capture = self.pg9.get_capture(1) |
| 3309 | p = capture[0] |
| 3310 | try: |
| 3311 | ip = p[IP] |
| 3312 | tcp = p[TCP] |
| 3313 | self.assertEqual(ip.src, self.nat_addr) |
| 3314 | self.assertEqual(ip.dst, remote_host.ip4) |
| 3315 | self.assertEqual(tcp.sport, external_port) |
| 3316 | self.assertEqual(tcp.dport, 12345) |
| 3317 | self.check_tcp_checksum(p) |
| 3318 | self.check_ip_checksum(p) |
| 3319 | except: |
| 3320 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3321 | raise |
| 3322 | |
Matus Fabian | 5ba86f7 | 2017-10-26 03:37:38 -0700 | [diff] [blame] | 3323 | def test_del_session(self): |
| 3324 | """ Delete NAT44 session """ |
| 3325 | self.nat44_add_address(self.nat_addr) |
| 3326 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3327 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3328 | is_inside=0) |
| 3329 | |
| 3330 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 3331 | self.pg0.add_stream(pkts) |
| 3332 | self.pg_enable_capture(self.pg_interfaces) |
| 3333 | self.pg_start() |
| 3334 | capture = self.pg1.get_capture(len(pkts)) |
| 3335 | |
| 3336 | sessions = self.vapi.nat44_user_session_dump(self.pg0.remote_ip4n, 0) |
| 3337 | nsessions = len(sessions) |
| 3338 | |
| 3339 | self.vapi.nat44_del_session(sessions[0].inside_ip_address, |
| 3340 | sessions[0].inside_port, |
| 3341 | sessions[0].protocol) |
| 3342 | self.vapi.nat44_del_session(sessions[1].outside_ip_address, |
| 3343 | sessions[1].outside_port, |
| 3344 | sessions[1].protocol, |
| 3345 | is_in=0) |
| 3346 | |
| 3347 | sessions = self.vapi.nat44_user_session_dump(self.pg0.remote_ip4n, 0) |
| 3348 | self.assertEqual(nsessions - len(sessions), 2) |
| 3349 | |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 3350 | def test_set_get_reass(self): |
| 3351 | """ NAT44 set/get virtual fragmentation reassembly """ |
| 3352 | reas_cfg1 = self.vapi.nat_get_reass() |
| 3353 | |
| 3354 | self.vapi.nat_set_reass(timeout=reas_cfg1.ip4_timeout + 5, |
| 3355 | max_reass=reas_cfg1.ip4_max_reass * 2, |
| 3356 | max_frag=reas_cfg1.ip4_max_frag * 2) |
| 3357 | |
| 3358 | reas_cfg2 = self.vapi.nat_get_reass() |
| 3359 | |
| 3360 | self.assertEqual(reas_cfg1.ip4_timeout + 5, reas_cfg2.ip4_timeout) |
| 3361 | self.assertEqual(reas_cfg1.ip4_max_reass * 2, reas_cfg2.ip4_max_reass) |
| 3362 | self.assertEqual(reas_cfg1.ip4_max_frag * 2, reas_cfg2.ip4_max_frag) |
| 3363 | |
| 3364 | self.vapi.nat_set_reass(drop_frag=1) |
| 3365 | self.assertTrue(self.vapi.nat_get_reass().ip4_drop_frag) |
| 3366 | |
| 3367 | def test_frag_in_order(self): |
| 3368 | """ NAT44 translate fragments arriving in order """ |
| 3369 | self.nat44_add_address(self.nat_addr) |
| 3370 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3371 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3372 | is_inside=0) |
| 3373 | |
| 3374 | data = "A" * 4 + "B" * 16 + "C" * 3 |
| 3375 | self.tcp_port_in = random.randint(1025, 65535) |
| 3376 | |
| 3377 | reass = self.vapi.nat_reass_dump() |
| 3378 | reass_n_start = len(reass) |
| 3379 | |
| 3380 | # in2out |
| 3381 | pkts = self.create_stream_frag(self.pg0, |
| 3382 | self.pg1.remote_ip4, |
| 3383 | self.tcp_port_in, |
| 3384 | 20, |
| 3385 | data) |
| 3386 | self.pg0.add_stream(pkts) |
| 3387 | self.pg_enable_capture(self.pg_interfaces) |
| 3388 | self.pg_start() |
| 3389 | frags = self.pg1.get_capture(len(pkts)) |
| 3390 | p = self.reass_frags_and_verify(frags, |
| 3391 | self.nat_addr, |
| 3392 | self.pg1.remote_ip4) |
| 3393 | self.assertEqual(p[TCP].dport, 20) |
| 3394 | self.assertNotEqual(p[TCP].sport, self.tcp_port_in) |
| 3395 | self.tcp_port_out = p[TCP].sport |
| 3396 | self.assertEqual(data, p[Raw].load) |
| 3397 | |
| 3398 | # out2in |
| 3399 | pkts = self.create_stream_frag(self.pg1, |
| 3400 | self.nat_addr, |
| 3401 | 20, |
| 3402 | self.tcp_port_out, |
| 3403 | data) |
| 3404 | self.pg1.add_stream(pkts) |
| 3405 | self.pg_enable_capture(self.pg_interfaces) |
| 3406 | self.pg_start() |
| 3407 | frags = self.pg0.get_capture(len(pkts)) |
| 3408 | p = self.reass_frags_and_verify(frags, |
| 3409 | self.pg1.remote_ip4, |
| 3410 | self.pg0.remote_ip4) |
| 3411 | self.assertEqual(p[TCP].sport, 20) |
| 3412 | self.assertEqual(p[TCP].dport, self.tcp_port_in) |
| 3413 | self.assertEqual(data, p[Raw].load) |
| 3414 | |
| 3415 | reass = self.vapi.nat_reass_dump() |
| 3416 | reass_n_end = len(reass) |
| 3417 | |
| 3418 | self.assertEqual(reass_n_end - reass_n_start, 2) |
| 3419 | |
| 3420 | def test_reass_hairpinning(self): |
| 3421 | """ NAT44 fragments hairpinning """ |
| 3422 | host = self.pg0.remote_hosts[0] |
| 3423 | server = self.pg0.remote_hosts[1] |
| 3424 | host_in_port = random.randint(1025, 65535) |
| 3425 | host_out_port = 0 |
| 3426 | server_in_port = random.randint(1025, 65535) |
| 3427 | server_out_port = random.randint(1025, 65535) |
| 3428 | data = "A" * 4 + "B" * 16 + "C" * 3 |
| 3429 | |
| 3430 | self.nat44_add_address(self.nat_addr) |
| 3431 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3432 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3433 | is_inside=0) |
| 3434 | # add static mapping for server |
| 3435 | self.nat44_add_static_mapping(server.ip4, self.nat_addr, |
| 3436 | server_in_port, server_out_port, |
| 3437 | proto=IP_PROTOS.tcp) |
| 3438 | |
| 3439 | # send packet from host to server |
| 3440 | pkts = self.create_stream_frag(self.pg0, |
| 3441 | self.nat_addr, |
| 3442 | host_in_port, |
| 3443 | server_out_port, |
| 3444 | data) |
| 3445 | self.pg0.add_stream(pkts) |
| 3446 | self.pg_enable_capture(self.pg_interfaces) |
| 3447 | self.pg_start() |
| 3448 | frags = self.pg0.get_capture(len(pkts)) |
| 3449 | p = self.reass_frags_and_verify(frags, |
| 3450 | self.nat_addr, |
| 3451 | server.ip4) |
| 3452 | self.assertNotEqual(p[TCP].sport, host_in_port) |
| 3453 | self.assertEqual(p[TCP].dport, server_in_port) |
| 3454 | self.assertEqual(data, p[Raw].load) |
| 3455 | |
| 3456 | def test_frag_out_of_order(self): |
| 3457 | """ NAT44 translate fragments arriving out of order """ |
| 3458 | self.nat44_add_address(self.nat_addr) |
| 3459 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3460 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3461 | is_inside=0) |
| 3462 | |
| 3463 | data = "A" * 4 + "B" * 16 + "C" * 3 |
| 3464 | random.randint(1025, 65535) |
| 3465 | |
| 3466 | # in2out |
| 3467 | pkts = self.create_stream_frag(self.pg0, |
| 3468 | self.pg1.remote_ip4, |
| 3469 | self.tcp_port_in, |
| 3470 | 20, |
| 3471 | data) |
| 3472 | pkts.reverse() |
| 3473 | self.pg0.add_stream(pkts) |
| 3474 | self.pg_enable_capture(self.pg_interfaces) |
| 3475 | self.pg_start() |
| 3476 | frags = self.pg1.get_capture(len(pkts)) |
| 3477 | p = self.reass_frags_and_verify(frags, |
| 3478 | self.nat_addr, |
| 3479 | self.pg1.remote_ip4) |
| 3480 | self.assertEqual(p[TCP].dport, 20) |
| 3481 | self.assertNotEqual(p[TCP].sport, self.tcp_port_in) |
| 3482 | self.tcp_port_out = p[TCP].sport |
| 3483 | self.assertEqual(data, p[Raw].load) |
| 3484 | |
| 3485 | # out2in |
| 3486 | pkts = self.create_stream_frag(self.pg1, |
| 3487 | self.nat_addr, |
| 3488 | 20, |
| 3489 | self.tcp_port_out, |
| 3490 | data) |
| 3491 | pkts.reverse() |
| 3492 | self.pg1.add_stream(pkts) |
| 3493 | self.pg_enable_capture(self.pg_interfaces) |
| 3494 | self.pg_start() |
| 3495 | frags = self.pg0.get_capture(len(pkts)) |
| 3496 | p = self.reass_frags_and_verify(frags, |
| 3497 | self.pg1.remote_ip4, |
| 3498 | self.pg0.remote_ip4) |
| 3499 | self.assertEqual(p[TCP].sport, 20) |
| 3500 | self.assertEqual(p[TCP].dport, self.tcp_port_in) |
| 3501 | self.assertEqual(data, p[Raw].load) |
| 3502 | |
Matus Fabian | 2769710 | 2017-11-09 01:43:47 -0800 | [diff] [blame] | 3503 | def test_port_restricted(self): |
| 3504 | """ Port restricted NAT44 (MAP-E CE) """ |
| 3505 | self.nat44_add_address(self.nat_addr) |
| 3506 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3507 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3508 | is_inside=0) |
Matus Fabian | 51e759f | 2017-12-07 23:22:51 -0800 | [diff] [blame] | 3509 | self.vapi.cli("nat addr-port-assignment-alg map-e psid 10 " |
Matus Fabian | 2769710 | 2017-11-09 01:43:47 -0800 | [diff] [blame] | 3510 | "psid-offset 6 psid-len 6") |
| 3511 | |
| 3512 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 3513 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 3514 | TCP(sport=4567, dport=22)) |
| 3515 | self.pg0.add_stream(p) |
| 3516 | self.pg_enable_capture(self.pg_interfaces) |
| 3517 | self.pg_start() |
| 3518 | capture = self.pg1.get_capture(1) |
| 3519 | p = capture[0] |
| 3520 | try: |
| 3521 | ip = p[IP] |
| 3522 | tcp = p[TCP] |
| 3523 | self.assertEqual(ip.dst, self.pg1.remote_ip4) |
| 3524 | self.assertEqual(ip.src, self.nat_addr) |
| 3525 | self.assertEqual(tcp.dport, 22) |
| 3526 | self.assertNotEqual(tcp.sport, 4567) |
| 3527 | self.assertEqual((tcp.sport >> 6) & 63, 10) |
| 3528 | self.check_tcp_checksum(p) |
| 3529 | self.check_ip_checksum(p) |
| 3530 | except: |
| 3531 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3532 | raise |
| 3533 | |
Matus Fabian | b932d26 | 2017-12-18 05:38:24 -0800 | [diff] [blame] | 3534 | def test_twice_nat(self): |
| 3535 | """ Twice NAT44 """ |
| 3536 | twice_nat_addr = '10.0.1.3' |
| 3537 | port_in = 8080 |
| 3538 | port_out = 80 |
| 3539 | eh_port_out = 4567 |
| 3540 | eh_port_in = 0 |
| 3541 | self.nat44_add_address(self.nat_addr) |
| 3542 | self.nat44_add_address(twice_nat_addr, twice_nat=1) |
| 3543 | self.nat44_add_static_mapping(self.pg0.remote_ip4, self.nat_addr, |
| 3544 | port_in, port_out, proto=IP_PROTOS.tcp, |
| 3545 | twice_nat=1) |
| 3546 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3547 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3548 | is_inside=0) |
| 3549 | |
| 3550 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 3551 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 3552 | TCP(sport=eh_port_out, dport=port_out)) |
| 3553 | self.pg1.add_stream(p) |
| 3554 | self.pg_enable_capture(self.pg_interfaces) |
| 3555 | self.pg_start() |
| 3556 | capture = self.pg0.get_capture(1) |
| 3557 | p = capture[0] |
| 3558 | try: |
| 3559 | ip = p[IP] |
| 3560 | tcp = p[TCP] |
| 3561 | self.assertEqual(ip.dst, self.pg0.remote_ip4) |
| 3562 | self.assertEqual(ip.src, twice_nat_addr) |
| 3563 | self.assertEqual(tcp.dport, port_in) |
| 3564 | self.assertNotEqual(tcp.sport, eh_port_out) |
| 3565 | eh_port_in = tcp.sport |
| 3566 | self.check_tcp_checksum(p) |
| 3567 | self.check_ip_checksum(p) |
| 3568 | except: |
| 3569 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3570 | raise |
| 3571 | |
| 3572 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 3573 | IP(src=self.pg0.remote_ip4, dst=twice_nat_addr) / |
| 3574 | TCP(sport=port_in, dport=eh_port_in)) |
| 3575 | self.pg0.add_stream(p) |
| 3576 | self.pg_enable_capture(self.pg_interfaces) |
| 3577 | self.pg_start() |
| 3578 | capture = self.pg1.get_capture(1) |
| 3579 | p = capture[0] |
| 3580 | try: |
| 3581 | ip = p[IP] |
| 3582 | tcp = p[TCP] |
| 3583 | self.assertEqual(ip.dst, self.pg1.remote_ip4) |
| 3584 | self.assertEqual(ip.src, self.nat_addr) |
| 3585 | self.assertEqual(tcp.dport, eh_port_out) |
| 3586 | self.assertEqual(tcp.sport, port_out) |
| 3587 | self.check_tcp_checksum(p) |
| 3588 | self.check_ip_checksum(p) |
| 3589 | except: |
| 3590 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3591 | raise |
| 3592 | |
| 3593 | def test_twice_nat_lb(self): |
| 3594 | """ Twice NAT44 local service load balancing """ |
| 3595 | external_addr_n = socket.inet_pton(socket.AF_INET, self.nat_addr) |
| 3596 | twice_nat_addr = '10.0.1.3' |
| 3597 | local_port = 8080 |
| 3598 | external_port = 80 |
| 3599 | eh_port_out = 4567 |
| 3600 | eh_port_in = 0 |
| 3601 | server1 = self.pg0.remote_hosts[0] |
| 3602 | server2 = self.pg0.remote_hosts[1] |
| 3603 | |
| 3604 | locals = [{'addr': server1.ip4n, |
| 3605 | 'port': local_port, |
| 3606 | 'probability': 50}, |
| 3607 | {'addr': server2.ip4n, |
| 3608 | 'port': local_port, |
| 3609 | 'probability': 50}] |
| 3610 | |
| 3611 | self.nat44_add_address(self.nat_addr) |
| 3612 | self.nat44_add_address(twice_nat_addr, twice_nat=1) |
| 3613 | |
| 3614 | self.vapi.nat44_add_del_lb_static_mapping(external_addr_n, |
| 3615 | external_port, |
| 3616 | IP_PROTOS.tcp, |
| 3617 | twice_nat=1, |
| 3618 | local_num=len(locals), |
| 3619 | locals=locals) |
| 3620 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3621 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3622 | is_inside=0) |
| 3623 | |
| 3624 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 3625 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 3626 | TCP(sport=eh_port_out, dport=external_port)) |
| 3627 | self.pg1.add_stream(p) |
| 3628 | self.pg_enable_capture(self.pg_interfaces) |
| 3629 | self.pg_start() |
| 3630 | capture = self.pg0.get_capture(1) |
| 3631 | p = capture[0] |
| 3632 | server = None |
| 3633 | try: |
| 3634 | ip = p[IP] |
| 3635 | tcp = p[TCP] |
| 3636 | self.assertEqual(ip.src, twice_nat_addr) |
| 3637 | self.assertIn(ip.dst, [server1.ip4, server2.ip4]) |
| 3638 | if ip.dst == server1.ip4: |
| 3639 | server = server1 |
| 3640 | else: |
| 3641 | server = server2 |
| 3642 | self.assertNotEqual(tcp.sport, eh_port_out) |
| 3643 | eh_port_in = tcp.sport |
| 3644 | self.assertEqual(tcp.dport, local_port) |
| 3645 | self.check_tcp_checksum(p) |
| 3646 | self.check_ip_checksum(p) |
| 3647 | except: |
| 3648 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3649 | raise |
| 3650 | |
| 3651 | p = (Ether(src=server.mac, dst=self.pg0.local_mac) / |
| 3652 | IP(src=server.ip4, dst=twice_nat_addr) / |
| 3653 | TCP(sport=local_port, dport=eh_port_in)) |
| 3654 | self.pg0.add_stream(p) |
| 3655 | self.pg_enable_capture(self.pg_interfaces) |
| 3656 | self.pg_start() |
| 3657 | capture = self.pg1.get_capture(1) |
| 3658 | p = capture[0] |
| 3659 | try: |
| 3660 | ip = p[IP] |
| 3661 | tcp = p[TCP] |
| 3662 | self.assertEqual(ip.src, self.nat_addr) |
| 3663 | self.assertEqual(ip.dst, self.pg1.remote_ip4) |
| 3664 | self.assertEqual(tcp.sport, external_port) |
| 3665 | self.assertEqual(tcp.dport, eh_port_out) |
| 3666 | self.check_tcp_checksum(p) |
| 3667 | self.check_ip_checksum(p) |
| 3668 | except: |
| 3669 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 3670 | raise |
| 3671 | |
| 3672 | def test_twice_nat_interface_addr(self): |
| 3673 | """ Acquire twice NAT44 addresses from interface """ |
| 3674 | self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index, twice_nat=1) |
| 3675 | |
| 3676 | # no address in NAT pool |
| 3677 | adresses = self.vapi.nat44_address_dump() |
| 3678 | self.assertEqual(0, len(adresses)) |
| 3679 | |
| 3680 | # configure interface address and check NAT address pool |
| 3681 | self.pg7.config_ip4() |
| 3682 | adresses = self.vapi.nat44_address_dump() |
| 3683 | self.assertEqual(1, len(adresses)) |
| 3684 | self.assertEqual(adresses[0].ip_address[0:4], self.pg7.local_ip4n) |
| 3685 | self.assertEqual(adresses[0].twice_nat, 1) |
| 3686 | |
| 3687 | # remove interface address and check NAT address pool |
| 3688 | self.pg7.unconfig_ip4() |
| 3689 | adresses = self.vapi.nat44_address_dump() |
| 3690 | self.assertEqual(0, len(adresses)) |
| 3691 | |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 3692 | def test_ipfix_max_frags(self): |
| 3693 | """ IPFIX logging maximum fragments pending reassembly exceeded """ |
| 3694 | self.nat44_add_address(self.nat_addr) |
| 3695 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3696 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 3697 | is_inside=0) |
| 3698 | self.vapi.nat_set_reass(max_frag=0) |
| 3699 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 3700 | src_address=self.pg3.local_ip4n, |
| 3701 | path_mtu=512, |
| 3702 | template_interval=10) |
| 3703 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 3704 | src_port=self.ipfix_src_port) |
| 3705 | |
| 3706 | data = "A" * 4 + "B" * 16 + "C" * 3 |
| 3707 | self.tcp_port_in = random.randint(1025, 65535) |
| 3708 | pkts = self.create_stream_frag(self.pg0, |
| 3709 | self.pg1.remote_ip4, |
| 3710 | self.tcp_port_in, |
| 3711 | 20, |
| 3712 | data) |
| 3713 | self.pg0.add_stream(pkts[-1]) |
| 3714 | self.pg_enable_capture(self.pg_interfaces) |
| 3715 | self.pg_start() |
| 3716 | frags = self.pg1.get_capture(0) |
| 3717 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 3718 | capture = self.pg3.get_capture(9) |
| 3719 | ipfix = IPFIXDecoder() |
| 3720 | # first load template |
| 3721 | for p in capture: |
| 3722 | self.assertTrue(p.haslayer(IPFIX)) |
| 3723 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 3724 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 3725 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 3726 | self.assertEqual(p[UDP].dport, 4739) |
| 3727 | self.assertEqual(p[IPFIX].observationDomainID, |
| 3728 | self.ipfix_domain_id) |
| 3729 | if p.haslayer(Template): |
| 3730 | ipfix.add_template(p.getlayer(Template)) |
| 3731 | # verify events in data set |
| 3732 | for p in capture: |
| 3733 | if p.haslayer(Data): |
| 3734 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 3735 | self.verify_ipfix_max_fragments_ip4(data, 0, |
| 3736 | self.pg0.remote_ip4n) |
| 3737 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 3738 | def tearDown(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3739 | super(TestNAT44, self).tearDown() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 3740 | if not self.vpp_dead: |
Matus Fabian | 8211954 | 2018-01-25 01:13:22 -0800 | [diff] [blame] | 3741 | self.logger.info(self.vapi.cli("show nat44 addresses")) |
| 3742 | self.logger.info(self.vapi.cli("show nat44 interfaces")) |
| 3743 | self.logger.info(self.vapi.cli("show nat44 static mappings")) |
| 3744 | self.logger.info(self.vapi.cli("show nat44 interface address")) |
| 3745 | self.logger.info(self.vapi.cli("show nat44 sessions detail")) |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 3746 | self.logger.info(self.vapi.cli("show nat virtual-reassembly")) |
Matus Fabian | 51e759f | 2017-12-07 23:22:51 -0800 | [diff] [blame] | 3747 | self.vapi.cli("nat addr-port-assignment-alg default") |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3748 | self.clear_nat44() |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 3749 | |
Matus Fabian | eea28d7 | 2017-01-13 04:15:54 -0800 | [diff] [blame] | 3750 | |
Juraj Sloboda | cba6936 | 2017-12-19 02:09:32 +0100 | [diff] [blame] | 3751 | class TestNAT44Out2InDPO(MethodHolder): |
| 3752 | """ NAT44 Test Cases using out2in DPO """ |
| 3753 | |
| 3754 | @classmethod |
| 3755 | def setUpConstants(cls): |
| 3756 | super(TestNAT44Out2InDPO, cls).setUpConstants() |
| 3757 | cls.vpp_cmdline.extend(["nat", "{", "out2in dpo", "}"]) |
| 3758 | |
| 3759 | @classmethod |
| 3760 | def setUpClass(cls): |
| 3761 | super(TestNAT44Out2InDPO, cls).setUpClass() |
| 3762 | |
| 3763 | try: |
| 3764 | cls.tcp_port_in = 6303 |
| 3765 | cls.tcp_port_out = 6303 |
| 3766 | cls.udp_port_in = 6304 |
| 3767 | cls.udp_port_out = 6304 |
| 3768 | cls.icmp_id_in = 6305 |
| 3769 | cls.icmp_id_out = 6305 |
| 3770 | cls.nat_addr = '10.0.0.3' |
| 3771 | cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr) |
| 3772 | cls.dst_ip4 = '192.168.70.1' |
| 3773 | |
| 3774 | cls.create_pg_interfaces(range(2)) |
| 3775 | |
| 3776 | cls.pg0.admin_up() |
| 3777 | cls.pg0.config_ip4() |
| 3778 | cls.pg0.resolve_arp() |
| 3779 | |
| 3780 | cls.pg1.admin_up() |
| 3781 | cls.pg1.config_ip6() |
| 3782 | cls.pg1.resolve_ndp() |
| 3783 | |
| 3784 | cls.vapi.ip_add_del_route(is_ipv6=True, dst_address='\x00'*16, |
| 3785 | dst_address_length=0, |
| 3786 | next_hop_address=cls.pg1.remote_ip6n, |
| 3787 | next_hop_sw_if_index=cls.pg1.sw_if_index) |
| 3788 | |
| 3789 | except Exception: |
| 3790 | super(TestNAT44Out2InDPO, cls).tearDownClass() |
| 3791 | raise |
| 3792 | |
| 3793 | def configure_xlat(self): |
| 3794 | self.dst_ip6_pfx = '1:2:3::' |
| 3795 | self.dst_ip6_pfx_n = socket.inet_pton(socket.AF_INET6, |
| 3796 | self.dst_ip6_pfx) |
| 3797 | self.dst_ip6_pfx_len = 96 |
| 3798 | self.src_ip6_pfx = '4:5:6::' |
| 3799 | self.src_ip6_pfx_n = socket.inet_pton(socket.AF_INET6, |
| 3800 | self.src_ip6_pfx) |
| 3801 | self.src_ip6_pfx_len = 96 |
| 3802 | self.vapi.map_add_domain(self.dst_ip6_pfx_n, self.dst_ip6_pfx_len, |
| 3803 | self.src_ip6_pfx_n, self.src_ip6_pfx_len, |
| 3804 | '\x00\x00\x00\x00', 0, is_translation=1, |
| 3805 | is_rfc6052=1) |
| 3806 | |
| 3807 | def test_464xlat_ce(self): |
| 3808 | """ Test 464XLAT CE with NAT44 """ |
| 3809 | |
| 3810 | self.configure_xlat() |
| 3811 | |
| 3812 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 3813 | self.vapi.nat44_add_del_address_range(self.nat_addr_n, self.nat_addr_n) |
| 3814 | |
| 3815 | out_src_ip6 = self.compose_ip6(self.dst_ip4, self.dst_ip6_pfx, |
| 3816 | self.dst_ip6_pfx_len) |
| 3817 | out_dst_ip6 = self.compose_ip6(self.nat_addr, self.src_ip6_pfx, |
| 3818 | self.src_ip6_pfx_len) |
| 3819 | |
| 3820 | try: |
| 3821 | pkts = self.create_stream_in(self.pg0, self.pg1, self.dst_ip4) |
| 3822 | self.pg0.add_stream(pkts) |
| 3823 | self.pg_enable_capture(self.pg_interfaces) |
| 3824 | self.pg_start() |
| 3825 | capture = self.pg1.get_capture(len(pkts)) |
| 3826 | self.verify_capture_out_ip6(capture, nat_ip=out_dst_ip6, |
| 3827 | dst_ip=out_src_ip6) |
| 3828 | |
| 3829 | pkts = self.create_stream_out_ip6(self.pg1, out_src_ip6, |
| 3830 | out_dst_ip6) |
| 3831 | self.pg1.add_stream(pkts) |
| 3832 | self.pg_enable_capture(self.pg_interfaces) |
| 3833 | self.pg_start() |
| 3834 | capture = self.pg0.get_capture(len(pkts)) |
| 3835 | self.verify_capture_in(capture, self.pg0) |
| 3836 | finally: |
| 3837 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index, |
| 3838 | is_add=0) |
| 3839 | self.vapi.nat44_add_del_address_range(self.nat_addr_n, |
| 3840 | self.nat_addr_n, is_add=0) |
| 3841 | |
| 3842 | def test_464xlat_ce_no_nat(self): |
| 3843 | """ Test 464XLAT CE without NAT44 """ |
| 3844 | |
| 3845 | self.configure_xlat() |
| 3846 | |
| 3847 | out_src_ip6 = self.compose_ip6(self.dst_ip4, self.dst_ip6_pfx, |
| 3848 | self.dst_ip6_pfx_len) |
| 3849 | out_dst_ip6 = self.compose_ip6(self.pg0.remote_ip4, self.src_ip6_pfx, |
| 3850 | self.src_ip6_pfx_len) |
| 3851 | |
| 3852 | pkts = self.create_stream_in(self.pg0, self.pg1, self.dst_ip4) |
| 3853 | self.pg0.add_stream(pkts) |
| 3854 | self.pg_enable_capture(self.pg_interfaces) |
| 3855 | self.pg_start() |
| 3856 | capture = self.pg1.get_capture(len(pkts)) |
| 3857 | self.verify_capture_out_ip6(capture, dst_ip=out_src_ip6, |
| 3858 | nat_ip=out_dst_ip6, same_port=True) |
| 3859 | |
| 3860 | pkts = self.create_stream_out_ip6(self.pg1, out_src_ip6, out_dst_ip6) |
| 3861 | self.pg1.add_stream(pkts) |
| 3862 | self.pg_enable_capture(self.pg_interfaces) |
| 3863 | self.pg_start() |
| 3864 | capture = self.pg0.get_capture(len(pkts)) |
| 3865 | self.verify_capture_in(capture, self.pg0) |
| 3866 | |
| 3867 | |
Martin Gálik | d7f75cd | 2017-03-27 06:02:47 -0700 | [diff] [blame] | 3868 | class TestDeterministicNAT(MethodHolder): |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 3869 | """ Deterministic NAT Test Cases """ |
| 3870 | |
| 3871 | @classmethod |
| 3872 | def setUpConstants(cls): |
| 3873 | super(TestDeterministicNAT, cls).setUpConstants() |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3874 | cls.vpp_cmdline.extend(["nat", "{", "deterministic", "}"]) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 3875 | |
| 3876 | @classmethod |
| 3877 | def setUpClass(cls): |
| 3878 | super(TestDeterministicNAT, cls).setUpClass() |
| 3879 | |
| 3880 | try: |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3881 | cls.tcp_port_in = 6303 |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3882 | cls.tcp_external_port = 6303 |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3883 | cls.udp_port_in = 6304 |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3884 | cls.udp_external_port = 6304 |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3885 | cls.icmp_id_in = 6305 |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3886 | cls.nat_addr = '10.0.0.3' |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3887 | |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 3888 | cls.create_pg_interfaces(range(3)) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 3889 | cls.interfaces = list(cls.pg_interfaces) |
| 3890 | |
| 3891 | for i in cls.interfaces: |
| 3892 | i.admin_up() |
| 3893 | i.config_ip4() |
| 3894 | i.resolve_arp() |
| 3895 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3896 | cls.pg0.generate_remote_hosts(2) |
| 3897 | cls.pg0.configure_ipv4_neighbors() |
| 3898 | |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 3899 | except Exception: |
| 3900 | super(TestDeterministicNAT, cls).tearDownClass() |
| 3901 | raise |
| 3902 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3903 | def create_stream_in(self, in_if, out_if, ttl=64): |
| 3904 | """ |
| 3905 | Create packet stream for inside network |
| 3906 | |
| 3907 | :param in_if: Inside interface |
| 3908 | :param out_if: Outside interface |
| 3909 | :param ttl: TTL of generated packets |
| 3910 | """ |
| 3911 | pkts = [] |
| 3912 | # TCP |
| 3913 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 3914 | IP(src=in_if.remote_ip4, dst=out_if.remote_ip4, ttl=ttl) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3915 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3916 | pkts.append(p) |
| 3917 | |
| 3918 | # UDP |
| 3919 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 3920 | IP(src=in_if.remote_ip4, dst=out_if.remote_ip4, ttl=ttl) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3921 | UDP(sport=self.udp_port_in, dport=self.udp_external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3922 | pkts.append(p) |
| 3923 | |
| 3924 | # ICMP |
| 3925 | p = (Ether(dst=in_if.local_mac, src=in_if.remote_mac) / |
| 3926 | IP(src=in_if.remote_ip4, dst=out_if.remote_ip4, ttl=ttl) / |
| 3927 | ICMP(id=self.icmp_id_in, type='echo-request')) |
| 3928 | pkts.append(p) |
| 3929 | |
| 3930 | return pkts |
| 3931 | |
| 3932 | def create_stream_out(self, out_if, dst_ip=None, ttl=64): |
| 3933 | """ |
| 3934 | Create packet stream for outside network |
| 3935 | |
| 3936 | :param out_if: Outside interface |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3937 | :param dst_ip: Destination IP address (Default use global NAT address) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3938 | :param ttl: TTL of generated packets |
| 3939 | """ |
| 3940 | if dst_ip is None: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3941 | dst_ip = self.nat_addr |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3942 | pkts = [] |
| 3943 | # TCP |
| 3944 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 3945 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3946 | TCP(dport=self.tcp_port_out, sport=self.tcp_external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3947 | pkts.append(p) |
| 3948 | |
| 3949 | # UDP |
| 3950 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 3951 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3952 | UDP(dport=self.udp_port_out, sport=self.udp_external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3953 | pkts.append(p) |
| 3954 | |
| 3955 | # ICMP |
| 3956 | p = (Ether(dst=out_if.local_mac, src=out_if.remote_mac) / |
| 3957 | IP(src=out_if.remote_ip4, dst=dst_ip, ttl=ttl) / |
| 3958 | ICMP(id=self.icmp_external_id, type='echo-reply')) |
| 3959 | pkts.append(p) |
| 3960 | |
| 3961 | return pkts |
| 3962 | |
| 3963 | def verify_capture_out(self, capture, nat_ip=None, packet_num=3): |
| 3964 | """ |
| 3965 | Verify captured packets on outside network |
| 3966 | |
| 3967 | :param capture: Captured packets |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3968 | :param nat_ip: Translated IP address (Default use global NAT address) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3969 | :param same_port: Sorce port number is not translated (Default False) |
| 3970 | :param packet_num: Expected number of packets (Default 3) |
| 3971 | """ |
| 3972 | if nat_ip is None: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 3973 | nat_ip = self.nat_addr |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3974 | self.assertEqual(packet_num, len(capture)) |
| 3975 | for packet in capture: |
| 3976 | try: |
| 3977 | self.assertEqual(packet[IP].src, nat_ip) |
| 3978 | if packet.haslayer(TCP): |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3979 | self.tcp_port_out = packet[TCP].sport |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3980 | elif packet.haslayer(UDP): |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 3981 | self.udp_port_out = packet[UDP].sport |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 3982 | else: |
| 3983 | self.icmp_external_id = packet[ICMP].id |
| 3984 | except: |
| 3985 | self.logger.error(ppp("Unexpected or invalid packet " |
| 3986 | "(outside network):", packet)) |
| 3987 | raise |
| 3988 | |
| 3989 | def initiate_tcp_session(self, in_if, out_if): |
| 3990 | """ |
| 3991 | Initiates TCP session |
| 3992 | |
| 3993 | :param in_if: Inside interface |
| 3994 | :param out_if: Outside interface |
| 3995 | """ |
| 3996 | try: |
| 3997 | # SYN packet in->out |
| 3998 | p = (Ether(src=in_if.remote_mac, dst=in_if.local_mac) / |
| 3999 | IP(src=in_if.remote_ip4, dst=out_if.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4000 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4001 | flags="S")) |
| 4002 | in_if.add_stream(p) |
| 4003 | self.pg_enable_capture(self.pg_interfaces) |
| 4004 | self.pg_start() |
| 4005 | capture = out_if.get_capture(1) |
| 4006 | p = capture[0] |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4007 | self.tcp_port_out = p[TCP].sport |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4008 | |
| 4009 | # SYN + ACK packet out->in |
| 4010 | p = (Ether(src=out_if.remote_mac, dst=out_if.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4011 | IP(src=out_if.remote_ip4, dst=self.nat_addr) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4012 | TCP(sport=self.tcp_external_port, dport=self.tcp_port_out, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4013 | flags="SA")) |
| 4014 | out_if.add_stream(p) |
| 4015 | self.pg_enable_capture(self.pg_interfaces) |
| 4016 | self.pg_start() |
| 4017 | in_if.get_capture(1) |
| 4018 | |
| 4019 | # ACK packet in->out |
| 4020 | p = (Ether(src=in_if.remote_mac, dst=in_if.local_mac) / |
| 4021 | IP(src=in_if.remote_ip4, dst=out_if.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4022 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4023 | flags="A")) |
| 4024 | in_if.add_stream(p) |
| 4025 | self.pg_enable_capture(self.pg_interfaces) |
| 4026 | self.pg_start() |
| 4027 | out_if.get_capture(1) |
| 4028 | |
| 4029 | except: |
| 4030 | self.logger.error("TCP 3 way handshake failed") |
| 4031 | raise |
| 4032 | |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 4033 | def verify_ipfix_max_entries_per_user(self, data): |
| 4034 | """ |
| 4035 | Verify IPFIX maximum entries per user exceeded event |
| 4036 | |
| 4037 | :param data: Decoded IPFIX data records |
| 4038 | """ |
| 4039 | self.assertEqual(1, len(data)) |
| 4040 | record = data[0] |
| 4041 | # natEvent |
| 4042 | self.assertEqual(ord(record[230]), 13) |
| 4043 | # natQuotaExceededEvent |
| 4044 | self.assertEqual('\x03\x00\x00\x00', record[466]) |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 4045 | # maxEntriesPerUser |
| 4046 | self.assertEqual('\xe8\x03\x00\x00', record[473]) |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 4047 | # sourceIPv4Address |
| 4048 | self.assertEqual(self.pg0.remote_ip4n, record[8]) |
| 4049 | |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4050 | def test_deterministic_mode(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4051 | """ NAT plugin run deterministic mode """ |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4052 | in_addr = '172.16.255.0' |
| 4053 | out_addr = '172.17.255.50' |
| 4054 | in_addr_t = '172.16.255.20' |
| 4055 | in_addr_n = socket.inet_aton(in_addr) |
| 4056 | out_addr_n = socket.inet_aton(out_addr) |
| 4057 | in_addr_t_n = socket.inet_aton(in_addr_t) |
| 4058 | in_plen = 24 |
| 4059 | out_plen = 32 |
| 4060 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4061 | nat_config = self.vapi.nat_show_config() |
| 4062 | self.assertEqual(1, nat_config.deterministic) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4063 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4064 | self.vapi.nat_det_add_del_map(in_addr_n, in_plen, out_addr_n, out_plen) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4065 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4066 | rep1 = self.vapi.nat_det_forward(in_addr_t_n) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4067 | self.assertEqual(rep1.out_addr[:4], out_addr_n) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4068 | rep2 = self.vapi.nat_det_reverse(out_addr_n, rep1.out_port_hi) |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4069 | self.assertEqual(rep2.in_addr[:4], in_addr_t_n) |
| 4070 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4071 | deterministic_mappings = self.vapi.nat_det_map_dump() |
Martin | 17a75cb | 2017-03-08 05:53:20 -0800 | [diff] [blame] | 4072 | self.assertEqual(len(deterministic_mappings), 1) |
| 4073 | dsm = deterministic_mappings[0] |
| 4074 | self.assertEqual(in_addr_n, dsm.in_addr[:4]) |
| 4075 | self.assertEqual(in_plen, dsm.in_plen) |
| 4076 | self.assertEqual(out_addr_n, dsm.out_addr[:4]) |
| 4077 | self.assertEqual(out_plen, dsm.out_plen) |
| 4078 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4079 | self.clear_nat_det() |
| 4080 | deterministic_mappings = self.vapi.nat_det_map_dump() |
Martin | b616e9f | 2017-03-14 02:25:45 -0700 | [diff] [blame] | 4081 | self.assertEqual(len(deterministic_mappings), 0) |
| 4082 | |
Matus Fabian | 6a0946f | 2017-04-12 03:36:13 -0700 | [diff] [blame] | 4083 | def test_set_timeouts(self): |
| 4084 | """ Set deterministic NAT timeouts """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4085 | timeouts_before = self.vapi.nat_det_get_timeouts() |
Matus Fabian | 6a0946f | 2017-04-12 03:36:13 -0700 | [diff] [blame] | 4086 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4087 | self.vapi.nat_det_set_timeouts(timeouts_before.udp + 10, |
| 4088 | timeouts_before.tcp_established + 10, |
| 4089 | timeouts_before.tcp_transitory + 10, |
| 4090 | timeouts_before.icmp + 10) |
Matus Fabian | 6a0946f | 2017-04-12 03:36:13 -0700 | [diff] [blame] | 4091 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4092 | timeouts_after = self.vapi.nat_det_get_timeouts() |
Matus Fabian | 6a0946f | 2017-04-12 03:36:13 -0700 | [diff] [blame] | 4093 | |
| 4094 | self.assertNotEqual(timeouts_before.udp, timeouts_after.udp) |
| 4095 | self.assertNotEqual(timeouts_before.icmp, timeouts_after.icmp) |
| 4096 | self.assertNotEqual(timeouts_before.tcp_established, |
| 4097 | timeouts_after.tcp_established) |
| 4098 | self.assertNotEqual(timeouts_before.tcp_transitory, |
| 4099 | timeouts_after.tcp_transitory) |
| 4100 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4101 | def test_det_in(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4102 | """ Deterministic NAT translation test (TCP, UDP, ICMP) """ |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4103 | |
| 4104 | nat_ip = "10.0.0.10" |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4105 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4106 | self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n, |
| 4107 | 32, |
| 4108 | socket.inet_aton(nat_ip), |
| 4109 | 32) |
| 4110 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4111 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4112 | is_inside=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4113 | |
| 4114 | # in2out |
| 4115 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 4116 | self.pg0.add_stream(pkts) |
| 4117 | self.pg_enable_capture(self.pg_interfaces) |
| 4118 | self.pg_start() |
| 4119 | capture = self.pg1.get_capture(len(pkts)) |
| 4120 | self.verify_capture_out(capture, nat_ip) |
| 4121 | |
| 4122 | # out2in |
| 4123 | pkts = self.create_stream_out(self.pg1, nat_ip) |
| 4124 | self.pg1.add_stream(pkts) |
| 4125 | self.pg_enable_capture(self.pg_interfaces) |
| 4126 | self.pg_start() |
| 4127 | capture = self.pg0.get_capture(len(pkts)) |
| 4128 | self.verify_capture_in(capture, self.pg0) |
| 4129 | |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4130 | # session dump test |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4131 | sessions = self.vapi.nat_det_session_dump(self.pg0.remote_ip4n) |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4132 | self.assertEqual(len(sessions), 3) |
| 4133 | |
| 4134 | # TCP session |
| 4135 | s = sessions[0] |
| 4136 | self.assertEqual(s.ext_addr[:4], self.pg1.remote_ip4n) |
| 4137 | self.assertEqual(s.in_port, self.tcp_port_in) |
| 4138 | self.assertEqual(s.out_port, self.tcp_port_out) |
| 4139 | self.assertEqual(s.ext_port, self.tcp_external_port) |
| 4140 | |
| 4141 | # UDP session |
| 4142 | s = sessions[1] |
| 4143 | self.assertEqual(s.ext_addr[:4], self.pg1.remote_ip4n) |
| 4144 | self.assertEqual(s.in_port, self.udp_port_in) |
| 4145 | self.assertEqual(s.out_port, self.udp_port_out) |
| 4146 | self.assertEqual(s.ext_port, self.udp_external_port) |
| 4147 | |
| 4148 | # ICMP session |
| 4149 | s = sessions[2] |
| 4150 | self.assertEqual(s.ext_addr[:4], self.pg1.remote_ip4n) |
| 4151 | self.assertEqual(s.in_port, self.icmp_id_in) |
| 4152 | self.assertEqual(s.out_port, self.icmp_external_id) |
| 4153 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4154 | def test_multiple_users(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4155 | """ Deterministic NAT multiple users """ |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4156 | |
| 4157 | nat_ip = "10.0.0.10" |
| 4158 | port_in = 80 |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4159 | external_port = 6303 |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4160 | |
| 4161 | host0 = self.pg0.remote_hosts[0] |
| 4162 | host1 = self.pg0.remote_hosts[1] |
| 4163 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4164 | self.vapi.nat_det_add_del_map(host0.ip4n, |
| 4165 | 24, |
| 4166 | socket.inet_aton(nat_ip), |
| 4167 | 32) |
| 4168 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4169 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4170 | is_inside=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4171 | |
| 4172 | # host0 to out |
| 4173 | p = (Ether(src=host0.mac, dst=self.pg0.local_mac) / |
| 4174 | IP(src=host0.ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4175 | TCP(sport=port_in, dport=external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4176 | self.pg0.add_stream(p) |
| 4177 | self.pg_enable_capture(self.pg_interfaces) |
| 4178 | self.pg_start() |
| 4179 | capture = self.pg1.get_capture(1) |
| 4180 | p = capture[0] |
| 4181 | try: |
| 4182 | ip = p[IP] |
| 4183 | tcp = p[TCP] |
| 4184 | self.assertEqual(ip.src, nat_ip) |
| 4185 | self.assertEqual(ip.dst, self.pg1.remote_ip4) |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4186 | self.assertEqual(tcp.dport, external_port) |
| 4187 | port_out0 = tcp.sport |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4188 | except: |
| 4189 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 4190 | raise |
| 4191 | |
| 4192 | # host1 to out |
| 4193 | p = (Ether(src=host1.mac, dst=self.pg0.local_mac) / |
| 4194 | IP(src=host1.ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4195 | TCP(sport=port_in, dport=external_port)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4196 | self.pg0.add_stream(p) |
| 4197 | self.pg_enable_capture(self.pg_interfaces) |
| 4198 | self.pg_start() |
| 4199 | capture = self.pg1.get_capture(1) |
| 4200 | p = capture[0] |
| 4201 | try: |
| 4202 | ip = p[IP] |
| 4203 | tcp = p[TCP] |
| 4204 | self.assertEqual(ip.src, nat_ip) |
| 4205 | self.assertEqual(ip.dst, self.pg1.remote_ip4) |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4206 | self.assertEqual(tcp.dport, external_port) |
| 4207 | port_out1 = tcp.sport |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4208 | except: |
| 4209 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 4210 | raise |
| 4211 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4212 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4213 | self.assertEqual(1, len(dms)) |
| 4214 | self.assertEqual(2, dms[0].ses_num) |
| 4215 | |
| 4216 | # out to host0 |
| 4217 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 4218 | IP(src=self.pg1.remote_ip4, dst=nat_ip) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4219 | TCP(sport=external_port, dport=port_out0)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4220 | self.pg1.add_stream(p) |
| 4221 | self.pg_enable_capture(self.pg_interfaces) |
| 4222 | self.pg_start() |
| 4223 | capture = self.pg0.get_capture(1) |
| 4224 | p = capture[0] |
| 4225 | try: |
| 4226 | ip = p[IP] |
| 4227 | tcp = p[TCP] |
| 4228 | self.assertEqual(ip.src, self.pg1.remote_ip4) |
| 4229 | self.assertEqual(ip.dst, host0.ip4) |
| 4230 | self.assertEqual(tcp.dport, port_in) |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4231 | self.assertEqual(tcp.sport, external_port) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4232 | except: |
| 4233 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 4234 | raise |
| 4235 | |
| 4236 | # out to host1 |
| 4237 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
| 4238 | IP(src=self.pg1.remote_ip4, dst=nat_ip) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4239 | TCP(sport=external_port, dport=port_out1)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4240 | self.pg1.add_stream(p) |
| 4241 | self.pg_enable_capture(self.pg_interfaces) |
| 4242 | self.pg_start() |
| 4243 | capture = self.pg0.get_capture(1) |
| 4244 | p = capture[0] |
| 4245 | try: |
| 4246 | ip = p[IP] |
| 4247 | tcp = p[TCP] |
| 4248 | self.assertEqual(ip.src, self.pg1.remote_ip4) |
| 4249 | self.assertEqual(ip.dst, host1.ip4) |
| 4250 | self.assertEqual(tcp.dport, port_in) |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4251 | self.assertEqual(tcp.sport, external_port) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4252 | except: |
| 4253 | self.logger.error(ppp("Unexpected or invalid packet", p)) |
| 4254 | raise |
| 4255 | |
Martin Gálik | 6bc8c64 | 2017-04-19 01:12:27 -0700 | [diff] [blame] | 4256 | # session close api test |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4257 | self.vapi.nat_det_close_session_out(socket.inet_aton(nat_ip), |
| 4258 | port_out1, |
Martin Gálik | 6bc8c64 | 2017-04-19 01:12:27 -0700 | [diff] [blame] | 4259 | self.pg1.remote_ip4n, |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4260 | external_port) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4261 | dms = self.vapi.nat_det_map_dump() |
| 4262 | self.assertEqual(dms[0].ses_num, 1) |
| 4263 | |
| 4264 | self.vapi.nat_det_close_session_in(host0.ip4n, |
| 4265 | port_in, |
| 4266 | self.pg1.remote_ip4n, |
| 4267 | external_port) |
| 4268 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 6bc8c64 | 2017-04-19 01:12:27 -0700 | [diff] [blame] | 4269 | self.assertEqual(dms[0].ses_num, 0) |
| 4270 | |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4271 | def test_tcp_session_close_detection_in(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4272 | """ Deterministic NAT TCP session close from inside network """ |
| 4273 | self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n, |
| 4274 | 32, |
| 4275 | socket.inet_aton(self.nat_addr), |
| 4276 | 32) |
| 4277 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4278 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4279 | is_inside=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4280 | |
| 4281 | self.initiate_tcp_session(self.pg0, self.pg1) |
| 4282 | |
| 4283 | # close the session from inside |
| 4284 | try: |
| 4285 | # FIN packet in -> out |
| 4286 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4287 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4288 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4289 | flags="F")) |
| 4290 | self.pg0.add_stream(p) |
| 4291 | self.pg_enable_capture(self.pg_interfaces) |
| 4292 | self.pg_start() |
| 4293 | self.pg1.get_capture(1) |
| 4294 | |
| 4295 | pkts = [] |
| 4296 | |
| 4297 | # ACK packet out -> in |
| 4298 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4299 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4300 | TCP(sport=self.tcp_external_port, dport=self.tcp_port_out, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4301 | flags="A")) |
| 4302 | pkts.append(p) |
| 4303 | |
| 4304 | # FIN packet out -> in |
| 4305 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4306 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4307 | TCP(sport=self.tcp_external_port, dport=self.tcp_port_out, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4308 | flags="F")) |
| 4309 | pkts.append(p) |
| 4310 | |
| 4311 | self.pg1.add_stream(pkts) |
| 4312 | self.pg_enable_capture(self.pg_interfaces) |
| 4313 | self.pg_start() |
| 4314 | self.pg0.get_capture(2) |
| 4315 | |
| 4316 | # ACK packet in -> out |
| 4317 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4318 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4319 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4320 | flags="A")) |
| 4321 | self.pg0.add_stream(p) |
| 4322 | self.pg_enable_capture(self.pg_interfaces) |
| 4323 | self.pg_start() |
| 4324 | self.pg1.get_capture(1) |
| 4325 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4326 | # Check if deterministic NAT44 closed the session |
| 4327 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4328 | self.assertEqual(0, dms[0].ses_num) |
| 4329 | except: |
| 4330 | self.logger.error("TCP session termination failed") |
| 4331 | raise |
| 4332 | |
| 4333 | def test_tcp_session_close_detection_out(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4334 | """ Deterministic NAT TCP session close from outside network """ |
| 4335 | self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n, |
| 4336 | 32, |
| 4337 | socket.inet_aton(self.nat_addr), |
| 4338 | 32) |
| 4339 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4340 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4341 | is_inside=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4342 | |
| 4343 | self.initiate_tcp_session(self.pg0, self.pg1) |
| 4344 | |
| 4345 | # close the session from outside |
| 4346 | try: |
| 4347 | # FIN packet out -> in |
| 4348 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4349 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4350 | TCP(sport=self.tcp_external_port, dport=self.tcp_port_out, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4351 | flags="F")) |
| 4352 | self.pg1.add_stream(p) |
| 4353 | self.pg_enable_capture(self.pg_interfaces) |
| 4354 | self.pg_start() |
| 4355 | self.pg0.get_capture(1) |
| 4356 | |
| 4357 | pkts = [] |
| 4358 | |
| 4359 | # ACK packet in -> out |
| 4360 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4361 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4362 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4363 | flags="A")) |
| 4364 | pkts.append(p) |
| 4365 | |
| 4366 | # ACK packet in -> out |
| 4367 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4368 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4369 | TCP(sport=self.tcp_port_in, dport=self.tcp_external_port, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4370 | flags="F")) |
| 4371 | pkts.append(p) |
| 4372 | |
| 4373 | self.pg0.add_stream(pkts) |
| 4374 | self.pg_enable_capture(self.pg_interfaces) |
| 4375 | self.pg_start() |
| 4376 | self.pg1.get_capture(2) |
| 4377 | |
| 4378 | # ACK packet out -> in |
| 4379 | p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) / |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4380 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
Martin Gálik | 9806eae | 2017-04-25 01:25:08 -0700 | [diff] [blame] | 4381 | TCP(sport=self.tcp_external_port, dport=self.tcp_port_out, |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4382 | flags="A")) |
| 4383 | self.pg1.add_stream(p) |
| 4384 | self.pg_enable_capture(self.pg_interfaces) |
| 4385 | self.pg_start() |
| 4386 | self.pg0.get_capture(1) |
| 4387 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4388 | # Check if deterministic NAT44 closed the session |
| 4389 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4390 | self.assertEqual(0, dms[0].ses_num) |
| 4391 | except: |
| 4392 | self.logger.error("TCP session termination failed") |
| 4393 | raise |
| 4394 | |
| 4395 | @unittest.skipUnless(running_extended_tests(), "part of extended tests") |
| 4396 | def test_session_timeout(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4397 | """ Deterministic NAT session timeouts """ |
| 4398 | self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n, |
| 4399 | 32, |
| 4400 | socket.inet_aton(self.nat_addr), |
| 4401 | 32) |
| 4402 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4403 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4404 | is_inside=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4405 | |
| 4406 | self.initiate_tcp_session(self.pg0, self.pg1) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4407 | self.vapi.nat_det_set_timeouts(5, 5, 5, 5) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4408 | pkts = self.create_stream_in(self.pg0, self.pg1) |
| 4409 | self.pg0.add_stream(pkts) |
| 4410 | self.pg_enable_capture(self.pg_interfaces) |
| 4411 | self.pg_start() |
| 4412 | capture = self.pg1.get_capture(len(pkts)) |
| 4413 | sleep(15) |
| 4414 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4415 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4416 | self.assertEqual(0, dms[0].ses_num) |
| 4417 | |
Matus Fabian | 7c0aecc | 2017-07-03 01:21:38 -0700 | [diff] [blame] | 4418 | @unittest.skipUnless(running_extended_tests(), "part of extended tests") |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4419 | def test_session_limit_per_user(self): |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4420 | """ Deterministic NAT maximum sessions per user limit """ |
| 4421 | self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n, |
| 4422 | 32, |
| 4423 | socket.inet_aton(self.nat_addr), |
| 4424 | 32) |
| 4425 | self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index) |
| 4426 | self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index, |
| 4427 | is_inside=0) |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 4428 | self.vapi.set_ipfix_exporter(collector_address=self.pg2.remote_ip4n, |
| 4429 | src_address=self.pg2.local_ip4n, |
| 4430 | path_mtu=512, |
| 4431 | template_interval=10) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4432 | self.vapi.nat_ipfix() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4433 | |
| 4434 | pkts = [] |
| 4435 | for port in range(1025, 2025): |
| 4436 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4437 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
| 4438 | UDP(sport=port, dport=port)) |
| 4439 | pkts.append(p) |
| 4440 | |
| 4441 | self.pg0.add_stream(pkts) |
| 4442 | self.pg_enable_capture(self.pg_interfaces) |
| 4443 | self.pg_start() |
| 4444 | capture = self.pg1.get_capture(len(pkts)) |
| 4445 | |
| 4446 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 4447 | IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) / |
Martin Gálik | f7e655d | 2017-04-27 02:13:26 -0700 | [diff] [blame] | 4448 | UDP(sport=3001, dport=3002)) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4449 | self.pg0.add_stream(p) |
| 4450 | self.pg_enable_capture(self.pg_interfaces) |
| 4451 | self.pg_start() |
| 4452 | capture = self.pg1.assert_nothing_captured() |
| 4453 | |
Martin Gálik | f7e655d | 2017-04-27 02:13:26 -0700 | [diff] [blame] | 4454 | # verify ICMP error packet |
| 4455 | capture = self.pg0.get_capture(1) |
| 4456 | p = capture[0] |
| 4457 | self.assertTrue(p.haslayer(ICMP)) |
| 4458 | icmp = p[ICMP] |
| 4459 | self.assertEqual(icmp.type, 3) |
| 4460 | self.assertEqual(icmp.code, 1) |
| 4461 | self.assertTrue(icmp.haslayer(IPerror)) |
| 4462 | inner_ip = icmp[IPerror] |
| 4463 | self.assertEqual(inner_ip[UDPerror].sport, 3001) |
| 4464 | self.assertEqual(inner_ip[UDPerror].dport, 3002) |
| 4465 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4466 | dms = self.vapi.nat_det_map_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4467 | |
| 4468 | self.assertEqual(1000, dms[0].ses_num) |
| 4469 | |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 4470 | # verify IPFIX logging |
| 4471 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
Matus Fabian | 7c0aecc | 2017-07-03 01:21:38 -0700 | [diff] [blame] | 4472 | sleep(1) |
Matus Fabian | 2f2db1c | 2017-04-18 05:29:59 -0700 | [diff] [blame] | 4473 | capture = self.pg2.get_capture(2) |
| 4474 | ipfix = IPFIXDecoder() |
| 4475 | # first load template |
| 4476 | for p in capture: |
| 4477 | self.assertTrue(p.haslayer(IPFIX)) |
| 4478 | if p.haslayer(Template): |
| 4479 | ipfix.add_template(p.getlayer(Template)) |
| 4480 | # verify events in data set |
| 4481 | for p in capture: |
| 4482 | if p.haslayer(Data): |
| 4483 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 4484 | self.verify_ipfix_max_entries_per_user(data) |
| 4485 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4486 | def clear_nat_det(self): |
Martin | 17a75cb | 2017-03-08 05:53:20 -0800 | [diff] [blame] | 4487 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4488 | Clear deterministic NAT configuration. |
Martin | 17a75cb | 2017-03-08 05:53:20 -0800 | [diff] [blame] | 4489 | """ |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4490 | self.vapi.nat_ipfix(enable=0) |
| 4491 | self.vapi.nat_det_set_timeouts() |
| 4492 | deterministic_mappings = self.vapi.nat_det_map_dump() |
Martin | 17a75cb | 2017-03-08 05:53:20 -0800 | [diff] [blame] | 4493 | for dsm in deterministic_mappings: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4494 | self.vapi.nat_det_add_del_map(dsm.in_addr, |
| 4495 | dsm.in_plen, |
| 4496 | dsm.out_addr, |
| 4497 | dsm.out_plen, |
| 4498 | is_add=0) |
Martin | 17a75cb | 2017-03-08 05:53:20 -0800 | [diff] [blame] | 4499 | |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4500 | interfaces = self.vapi.nat44_interface_dump() |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4501 | for intf in interfaces: |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4502 | self.vapi.nat44_interface_add_del_feature(intf.sw_if_index, |
| 4503 | intf.is_inside, |
| 4504 | is_add=0) |
Martin Gálik | 977c1cb | 2017-03-30 23:21:51 -0700 | [diff] [blame] | 4505 | |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4506 | def tearDown(self): |
| 4507 | super(TestDeterministicNAT, self).tearDown() |
| 4508 | if not self.vpp_dead: |
Matus Fabian | 8211954 | 2018-01-25 01:13:22 -0800 | [diff] [blame] | 4509 | self.logger.info(self.vapi.cli("show nat44 interfaces")) |
| 4510 | self.logger.info( |
| 4511 | self.vapi.cli("show nat44 deterministic mappings")) |
| 4512 | self.logger.info( |
| 4513 | self.vapi.cli("show nat44 deterministic timeouts")) |
| 4514 | self.logger.info( |
| 4515 | self.vapi.cli("show nat44 deterministic sessions")) |
Matus Fabian | 2ba92e3 | 2017-08-21 07:05:03 -0700 | [diff] [blame] | 4516 | self.clear_nat_det() |
Matus Fabian | 066f034 | 2017-02-10 03:48:01 -0800 | [diff] [blame] | 4517 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4518 | |
| 4519 | class TestNAT64(MethodHolder): |
| 4520 | """ NAT64 Test Cases """ |
| 4521 | |
| 4522 | @classmethod |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 4523 | def setUpConstants(cls): |
| 4524 | super(TestNAT64, cls).setUpConstants() |
| 4525 | cls.vpp_cmdline.extend(["nat", "{", "nat64 bib hash buckets 128", |
| 4526 | "nat64 st hash buckets 256", "}"]) |
| 4527 | |
| 4528 | @classmethod |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4529 | def setUpClass(cls): |
| 4530 | super(TestNAT64, cls).setUpClass() |
| 4531 | |
| 4532 | try: |
| 4533 | cls.tcp_port_in = 6303 |
| 4534 | cls.tcp_port_out = 6303 |
| 4535 | cls.udp_port_in = 6304 |
| 4536 | cls.udp_port_out = 6304 |
| 4537 | cls.icmp_id_in = 6305 |
| 4538 | cls.icmp_id_out = 6305 |
| 4539 | cls.nat_addr = '10.0.0.3' |
| 4540 | cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4541 | cls.vrf1_id = 10 |
| 4542 | cls.vrf1_nat_addr = '10.0.10.3' |
| 4543 | cls.vrf1_nat_addr_n = socket.inet_pton(socket.AF_INET, |
| 4544 | cls.vrf1_nat_addr) |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 4545 | cls.ipfix_src_port = 4739 |
| 4546 | cls.ipfix_domain_id = 1 |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4547 | |
Matus Fabian | 0938dcf | 2017-11-08 01:59:38 -0800 | [diff] [blame] | 4548 | cls.create_pg_interfaces(range(5)) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4549 | cls.ip6_interfaces = list(cls.pg_interfaces[0:1]) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4550 | cls.ip6_interfaces.append(cls.pg_interfaces[2]) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4551 | cls.ip4_interfaces = list(cls.pg_interfaces[1:2]) |
| 4552 | |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 4553 | cls.vapi.ip_table_add_del(cls.vrf1_id, is_add=1, is_ipv6=1) |
| 4554 | |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4555 | cls.pg_interfaces[2].set_table_ip6(cls.vrf1_id) |
| 4556 | |
| 4557 | cls.pg0.generate_remote_hosts(2) |
| 4558 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4559 | for i in cls.ip6_interfaces: |
| 4560 | i.admin_up() |
| 4561 | i.config_ip6() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4562 | i.configure_ipv6_neighbors() |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4563 | |
| 4564 | for i in cls.ip4_interfaces: |
| 4565 | i.admin_up() |
| 4566 | i.config_ip4() |
| 4567 | i.resolve_arp() |
| 4568 | |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 4569 | cls.pg3.admin_up() |
| 4570 | cls.pg3.config_ip4() |
| 4571 | cls.pg3.resolve_arp() |
| 4572 | cls.pg3.config_ip6() |
| 4573 | cls.pg3.configure_ipv6_neighbors() |
| 4574 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4575 | except Exception: |
| 4576 | super(TestNAT64, cls).tearDownClass() |
| 4577 | raise |
| 4578 | |
| 4579 | def test_pool(self): |
| 4580 | """ Add/delete address to NAT64 pool """ |
| 4581 | nat_addr = socket.inet_pton(socket.AF_INET, '1.2.3.4') |
| 4582 | |
| 4583 | self.vapi.nat64_add_del_pool_addr_range(nat_addr, nat_addr) |
| 4584 | |
| 4585 | addresses = self.vapi.nat64_pool_addr_dump() |
| 4586 | self.assertEqual(len(addresses), 1) |
| 4587 | self.assertEqual(addresses[0].address, nat_addr) |
| 4588 | |
| 4589 | self.vapi.nat64_add_del_pool_addr_range(nat_addr, nat_addr, is_add=0) |
| 4590 | |
| 4591 | addresses = self.vapi.nat64_pool_addr_dump() |
| 4592 | self.assertEqual(len(addresses), 0) |
| 4593 | |
| 4594 | def test_interface(self): |
| 4595 | """ Enable/disable NAT64 feature on the interface """ |
| 4596 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4597 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4598 | |
| 4599 | interfaces = self.vapi.nat64_interface_dump() |
| 4600 | self.assertEqual(len(interfaces), 2) |
| 4601 | pg0_found = False |
| 4602 | pg1_found = False |
| 4603 | for intf in interfaces: |
| 4604 | if intf.sw_if_index == self.pg0.sw_if_index: |
| 4605 | self.assertEqual(intf.is_inside, 1) |
| 4606 | pg0_found = True |
| 4607 | elif intf.sw_if_index == self.pg1.sw_if_index: |
| 4608 | self.assertEqual(intf.is_inside, 0) |
| 4609 | pg1_found = True |
| 4610 | self.assertTrue(pg0_found) |
| 4611 | self.assertTrue(pg1_found) |
| 4612 | |
| 4613 | features = self.vapi.cli("show interface features pg0") |
| 4614 | self.assertNotEqual(features.find('nat64-in2out'), -1) |
| 4615 | features = self.vapi.cli("show interface features pg1") |
| 4616 | self.assertNotEqual(features.find('nat64-out2in'), -1) |
| 4617 | |
| 4618 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index, is_add=0) |
| 4619 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_add=0) |
| 4620 | |
| 4621 | interfaces = self.vapi.nat64_interface_dump() |
| 4622 | self.assertEqual(len(interfaces), 0) |
| 4623 | |
| 4624 | def test_static_bib(self): |
| 4625 | """ Add/delete static BIB entry """ |
| 4626 | in_addr = socket.inet_pton(socket.AF_INET6, |
| 4627 | '2001:db8:85a3::8a2e:370:7334') |
| 4628 | out_addr = socket.inet_pton(socket.AF_INET, '10.1.1.3') |
| 4629 | in_port = 1234 |
| 4630 | out_port = 5678 |
| 4631 | proto = IP_PROTOS.tcp |
| 4632 | |
| 4633 | self.vapi.nat64_add_del_static_bib(in_addr, |
| 4634 | out_addr, |
| 4635 | in_port, |
| 4636 | out_port, |
| 4637 | proto) |
| 4638 | bib = self.vapi.nat64_bib_dump(IP_PROTOS.tcp) |
| 4639 | static_bib_num = 0 |
| 4640 | for bibe in bib: |
| 4641 | if bibe.is_static: |
| 4642 | static_bib_num += 1 |
| 4643 | self.assertEqual(bibe.i_addr, in_addr) |
| 4644 | self.assertEqual(bibe.o_addr, out_addr) |
| 4645 | self.assertEqual(bibe.i_port, in_port) |
| 4646 | self.assertEqual(bibe.o_port, out_port) |
| 4647 | self.assertEqual(static_bib_num, 1) |
| 4648 | |
| 4649 | self.vapi.nat64_add_del_static_bib(in_addr, |
| 4650 | out_addr, |
| 4651 | in_port, |
| 4652 | out_port, |
| 4653 | proto, |
| 4654 | is_add=0) |
| 4655 | bib = self.vapi.nat64_bib_dump(IP_PROTOS.tcp) |
| 4656 | static_bib_num = 0 |
| 4657 | for bibe in bib: |
| 4658 | if bibe.is_static: |
| 4659 | static_bib_num += 1 |
| 4660 | self.assertEqual(static_bib_num, 0) |
| 4661 | |
| 4662 | def test_set_timeouts(self): |
| 4663 | """ Set NAT64 timeouts """ |
| 4664 | # verify default values |
| 4665 | timeouts = self.vapi.nat64_get_timeouts() |
| 4666 | self.assertEqual(timeouts.udp, 300) |
| 4667 | self.assertEqual(timeouts.icmp, 60) |
| 4668 | self.assertEqual(timeouts.tcp_trans, 240) |
| 4669 | self.assertEqual(timeouts.tcp_est, 7440) |
| 4670 | self.assertEqual(timeouts.tcp_incoming_syn, 6) |
| 4671 | |
| 4672 | # set and verify custom values |
| 4673 | self.vapi.nat64_set_timeouts(udp=200, icmp=30, tcp_trans=250, |
| 4674 | tcp_est=7450, tcp_incoming_syn=10) |
| 4675 | timeouts = self.vapi.nat64_get_timeouts() |
| 4676 | self.assertEqual(timeouts.udp, 200) |
| 4677 | self.assertEqual(timeouts.icmp, 30) |
| 4678 | self.assertEqual(timeouts.tcp_trans, 250) |
| 4679 | self.assertEqual(timeouts.tcp_est, 7450) |
| 4680 | self.assertEqual(timeouts.tcp_incoming_syn, 10) |
| 4681 | |
| 4682 | def test_dynamic(self): |
| 4683 | """ NAT64 dynamic translation test """ |
| 4684 | self.tcp_port_in = 6303 |
| 4685 | self.udp_port_in = 6304 |
| 4686 | self.icmp_id_in = 6305 |
| 4687 | |
| 4688 | ses_num_start = self.nat64_get_ses_num() |
| 4689 | |
| 4690 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 4691 | self.nat_addr_n) |
| 4692 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4693 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4694 | |
| 4695 | # in2out |
| 4696 | pkts = self.create_stream_in_ip6(self.pg0, self.pg1) |
| 4697 | self.pg0.add_stream(pkts) |
| 4698 | self.pg_enable_capture(self.pg_interfaces) |
| 4699 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4700 | capture = self.pg1.get_capture(len(pkts)) |
| 4701 | self.verify_capture_out(capture, nat_ip=self.nat_addr, |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4702 | dst_ip=self.pg1.remote_ip4) |
| 4703 | |
| 4704 | # out2in |
| 4705 | pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr) |
| 4706 | self.pg1.add_stream(pkts) |
| 4707 | self.pg_enable_capture(self.pg_interfaces) |
| 4708 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4709 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4710 | ip = IPv6(src=''.join(['64:ff9b::', self.pg1.remote_ip4])) |
| 4711 | self.verify_capture_in_ip6(capture, ip[IPv6].src, self.pg0.remote_ip6) |
| 4712 | |
| 4713 | # in2out |
| 4714 | pkts = self.create_stream_in_ip6(self.pg0, self.pg1) |
| 4715 | self.pg0.add_stream(pkts) |
| 4716 | self.pg_enable_capture(self.pg_interfaces) |
| 4717 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4718 | capture = self.pg1.get_capture(len(pkts)) |
| 4719 | self.verify_capture_out(capture, nat_ip=self.nat_addr, |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4720 | dst_ip=self.pg1.remote_ip4) |
| 4721 | |
| 4722 | # out2in |
| 4723 | pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr) |
| 4724 | self.pg1.add_stream(pkts) |
| 4725 | self.pg_enable_capture(self.pg_interfaces) |
| 4726 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4727 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4728 | self.verify_capture_in_ip6(capture, ip[IPv6].src, self.pg0.remote_ip6) |
| 4729 | |
| 4730 | ses_num_end = self.nat64_get_ses_num() |
| 4731 | |
| 4732 | self.assertEqual(ses_num_end - ses_num_start, 3) |
| 4733 | |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4734 | # tenant with specific VRF |
| 4735 | self.vapi.nat64_add_del_pool_addr_range(self.vrf1_nat_addr_n, |
| 4736 | self.vrf1_nat_addr_n, |
| 4737 | vrf_id=self.vrf1_id) |
| 4738 | self.vapi.nat64_add_del_interface(self.pg2.sw_if_index) |
| 4739 | |
| 4740 | pkts = self.create_stream_in_ip6(self.pg2, self.pg1) |
| 4741 | self.pg2.add_stream(pkts) |
| 4742 | self.pg_enable_capture(self.pg_interfaces) |
| 4743 | self.pg_start() |
| 4744 | capture = self.pg1.get_capture(len(pkts)) |
| 4745 | self.verify_capture_out(capture, nat_ip=self.vrf1_nat_addr, |
| 4746 | dst_ip=self.pg1.remote_ip4) |
| 4747 | |
| 4748 | pkts = self.create_stream_out(self.pg1, dst_ip=self.vrf1_nat_addr) |
| 4749 | self.pg1.add_stream(pkts) |
| 4750 | self.pg_enable_capture(self.pg_interfaces) |
| 4751 | self.pg_start() |
| 4752 | capture = self.pg2.get_capture(len(pkts)) |
| 4753 | self.verify_capture_in_ip6(capture, ip[IPv6].src, self.pg2.remote_ip6) |
| 4754 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4755 | def test_static(self): |
| 4756 | """ NAT64 static translation test """ |
| 4757 | self.tcp_port_in = 60303 |
| 4758 | self.udp_port_in = 60304 |
| 4759 | self.icmp_id_in = 60305 |
| 4760 | self.tcp_port_out = 60303 |
| 4761 | self.udp_port_out = 60304 |
| 4762 | self.icmp_id_out = 60305 |
| 4763 | |
| 4764 | ses_num_start = self.nat64_get_ses_num() |
| 4765 | |
| 4766 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 4767 | self.nat_addr_n) |
| 4768 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4769 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4770 | |
| 4771 | self.vapi.nat64_add_del_static_bib(self.pg0.remote_ip6n, |
| 4772 | self.nat_addr_n, |
| 4773 | self.tcp_port_in, |
| 4774 | self.tcp_port_out, |
| 4775 | IP_PROTOS.tcp) |
| 4776 | self.vapi.nat64_add_del_static_bib(self.pg0.remote_ip6n, |
| 4777 | self.nat_addr_n, |
| 4778 | self.udp_port_in, |
| 4779 | self.udp_port_out, |
| 4780 | IP_PROTOS.udp) |
| 4781 | self.vapi.nat64_add_del_static_bib(self.pg0.remote_ip6n, |
| 4782 | self.nat_addr_n, |
| 4783 | self.icmp_id_in, |
| 4784 | self.icmp_id_out, |
| 4785 | IP_PROTOS.icmp) |
| 4786 | |
| 4787 | # in2out |
| 4788 | pkts = self.create_stream_in_ip6(self.pg0, self.pg1) |
| 4789 | self.pg0.add_stream(pkts) |
| 4790 | self.pg_enable_capture(self.pg_interfaces) |
| 4791 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4792 | capture = self.pg1.get_capture(len(pkts)) |
| 4793 | self.verify_capture_out(capture, nat_ip=self.nat_addr, |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4794 | dst_ip=self.pg1.remote_ip4, same_port=True) |
| 4795 | |
| 4796 | # out2in |
| 4797 | pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr) |
| 4798 | self.pg1.add_stream(pkts) |
| 4799 | self.pg_enable_capture(self.pg_interfaces) |
| 4800 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4801 | capture = self.pg0.get_capture(len(pkts)) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4802 | ip = IPv6(src=''.join(['64:ff9b::', self.pg1.remote_ip4])) |
| 4803 | self.verify_capture_in_ip6(capture, ip[IPv6].src, self.pg0.remote_ip6) |
| 4804 | |
| 4805 | ses_num_end = self.nat64_get_ses_num() |
| 4806 | |
| 4807 | self.assertEqual(ses_num_end - ses_num_start, 3) |
| 4808 | |
| 4809 | @unittest.skipUnless(running_extended_tests(), "part of extended tests") |
| 4810 | def test_session_timeout(self): |
| 4811 | """ NAT64 session timeout """ |
| 4812 | self.icmp_id_in = 1234 |
| 4813 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 4814 | self.nat_addr_n) |
| 4815 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4816 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4817 | self.vapi.nat64_set_timeouts(icmp=5) |
| 4818 | |
| 4819 | pkts = self.create_stream_in_ip6(self.pg0, self.pg1) |
| 4820 | self.pg0.add_stream(pkts) |
| 4821 | self.pg_enable_capture(self.pg_interfaces) |
| 4822 | self.pg_start() |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4823 | capture = self.pg1.get_capture(len(pkts)) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 4824 | |
| 4825 | ses_num_before_timeout = self.nat64_get_ses_num() |
| 4826 | |
| 4827 | sleep(15) |
| 4828 | |
| 4829 | # ICMP session after timeout |
| 4830 | ses_num_after_timeout = self.nat64_get_ses_num() |
| 4831 | self.assertNotEqual(ses_num_before_timeout, ses_num_after_timeout) |
| 4832 | |
Matus Fabian | 732036d | 2017-06-08 05:24:28 -0700 | [diff] [blame] | 4833 | def test_icmp_error(self): |
| 4834 | """ NAT64 ICMP Error message translation """ |
| 4835 | self.tcp_port_in = 6303 |
| 4836 | self.udp_port_in = 6304 |
| 4837 | self.icmp_id_in = 6305 |
| 4838 | |
| 4839 | ses_num_start = self.nat64_get_ses_num() |
| 4840 | |
| 4841 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 4842 | self.nat_addr_n) |
| 4843 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4844 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4845 | |
| 4846 | # send some packets to create sessions |
| 4847 | pkts = self.create_stream_in_ip6(self.pg0, self.pg1) |
| 4848 | self.pg0.add_stream(pkts) |
| 4849 | self.pg_enable_capture(self.pg_interfaces) |
| 4850 | self.pg_start() |
| 4851 | capture_ip4 = self.pg1.get_capture(len(pkts)) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4852 | self.verify_capture_out(capture_ip4, |
Matus Fabian | 732036d | 2017-06-08 05:24:28 -0700 | [diff] [blame] | 4853 | nat_ip=self.nat_addr, |
| 4854 | dst_ip=self.pg1.remote_ip4) |
| 4855 | |
| 4856 | pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr) |
| 4857 | self.pg1.add_stream(pkts) |
| 4858 | self.pg_enable_capture(self.pg_interfaces) |
| 4859 | self.pg_start() |
| 4860 | capture_ip6 = self.pg0.get_capture(len(pkts)) |
| 4861 | ip = IPv6(src=''.join(['64:ff9b::', self.pg1.remote_ip4])) |
| 4862 | self.verify_capture_in_ip6(capture_ip6, ip[IPv6].src, |
| 4863 | self.pg0.remote_ip6) |
| 4864 | |
| 4865 | # in2out |
| 4866 | pkts = [Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 4867 | IPv6(src=self.pg0.remote_ip6, dst=ip[IPv6].src) / |
| 4868 | ICMPv6DestUnreach(code=1) / |
| 4869 | packet[IPv6] for packet in capture_ip6] |
| 4870 | self.pg0.add_stream(pkts) |
| 4871 | self.pg_enable_capture(self.pg_interfaces) |
| 4872 | self.pg_start() |
| 4873 | capture = self.pg1.get_capture(len(pkts)) |
| 4874 | for packet in capture: |
| 4875 | try: |
| 4876 | self.assertEqual(packet[IP].src, self.nat_addr) |
| 4877 | self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) |
| 4878 | self.assertEqual(packet[ICMP].type, 3) |
| 4879 | self.assertEqual(packet[ICMP].code, 13) |
| 4880 | inner = packet[IPerror] |
| 4881 | self.assertEqual(inner.src, self.pg1.remote_ip4) |
| 4882 | self.assertEqual(inner.dst, self.nat_addr) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4883 | self.check_icmp_checksum(packet) |
Matus Fabian | 732036d | 2017-06-08 05:24:28 -0700 | [diff] [blame] | 4884 | if inner.haslayer(TCPerror): |
| 4885 | self.assertEqual(inner[TCPerror].dport, self.tcp_port_out) |
| 4886 | elif inner.haslayer(UDPerror): |
| 4887 | self.assertEqual(inner[UDPerror].dport, self.udp_port_out) |
| 4888 | else: |
| 4889 | self.assertEqual(inner[ICMPerror].id, self.icmp_id_out) |
| 4890 | except: |
| 4891 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 4892 | raise |
| 4893 | |
| 4894 | # out2in |
| 4895 | pkts = [Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 4896 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 4897 | ICMP(type=3, code=13) / |
| 4898 | packet[IP] for packet in capture_ip4] |
| 4899 | self.pg1.add_stream(pkts) |
| 4900 | self.pg_enable_capture(self.pg_interfaces) |
| 4901 | self.pg_start() |
| 4902 | capture = self.pg0.get_capture(len(pkts)) |
| 4903 | for packet in capture: |
| 4904 | try: |
| 4905 | self.assertEqual(packet[IPv6].src, ip.src) |
| 4906 | self.assertEqual(packet[IPv6].dst, self.pg0.remote_ip6) |
| 4907 | icmp = packet[ICMPv6DestUnreach] |
| 4908 | self.assertEqual(icmp.code, 1) |
| 4909 | inner = icmp[IPerror6] |
| 4910 | self.assertEqual(inner.src, self.pg0.remote_ip6) |
| 4911 | self.assertEqual(inner.dst, ip.src) |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4912 | self.check_icmpv6_checksum(packet) |
Matus Fabian | 732036d | 2017-06-08 05:24:28 -0700 | [diff] [blame] | 4913 | if inner.haslayer(TCPerror): |
| 4914 | self.assertEqual(inner[TCPerror].sport, self.tcp_port_in) |
| 4915 | elif inner.haslayer(UDPerror): |
| 4916 | self.assertEqual(inner[UDPerror].sport, self.udp_port_in) |
| 4917 | else: |
| 4918 | self.assertEqual(inner[ICMPv6EchoRequest].id, |
| 4919 | self.icmp_id_in) |
| 4920 | except: |
| 4921 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 4922 | raise |
| 4923 | |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 4924 | def test_hairpinning(self): |
| 4925 | """ NAT64 hairpinning """ |
| 4926 | |
| 4927 | client = self.pg0.remote_hosts[0] |
| 4928 | server = self.pg0.remote_hosts[1] |
| 4929 | server_tcp_in_port = 22 |
| 4930 | server_tcp_out_port = 4022 |
| 4931 | server_udp_in_port = 23 |
| 4932 | server_udp_out_port = 4023 |
| 4933 | client_tcp_in_port = 1234 |
| 4934 | client_udp_in_port = 1235 |
| 4935 | client_tcp_out_port = 0 |
| 4936 | client_udp_out_port = 0 |
| 4937 | ip = IPv6(src=''.join(['64:ff9b::', self.nat_addr])) |
| 4938 | nat_addr_ip6 = ip.src |
| 4939 | |
| 4940 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 4941 | self.nat_addr_n) |
| 4942 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 4943 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 4944 | |
| 4945 | self.vapi.nat64_add_del_static_bib(server.ip6n, |
| 4946 | self.nat_addr_n, |
| 4947 | server_tcp_in_port, |
| 4948 | server_tcp_out_port, |
| 4949 | IP_PROTOS.tcp) |
| 4950 | self.vapi.nat64_add_del_static_bib(server.ip6n, |
| 4951 | self.nat_addr_n, |
| 4952 | server_udp_in_port, |
| 4953 | server_udp_out_port, |
| 4954 | IP_PROTOS.udp) |
| 4955 | |
| 4956 | # client to server |
| 4957 | pkts = [] |
| 4958 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 4959 | IPv6(src=client.ip6, dst=nat_addr_ip6) / |
| 4960 | TCP(sport=client_tcp_in_port, dport=server_tcp_out_port)) |
| 4961 | pkts.append(p) |
| 4962 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 4963 | IPv6(src=client.ip6, dst=nat_addr_ip6) / |
| 4964 | UDP(sport=client_udp_in_port, dport=server_udp_out_port)) |
| 4965 | pkts.append(p) |
| 4966 | self.pg0.add_stream(pkts) |
| 4967 | self.pg_enable_capture(self.pg_interfaces) |
| 4968 | self.pg_start() |
| 4969 | capture = self.pg0.get_capture(len(pkts)) |
| 4970 | for packet in capture: |
| 4971 | try: |
| 4972 | self.assertEqual(packet[IPv6].src, nat_addr_ip6) |
| 4973 | self.assertEqual(packet[IPv6].dst, server.ip6) |
| 4974 | if packet.haslayer(TCP): |
| 4975 | self.assertNotEqual(packet[TCP].sport, client_tcp_in_port) |
| 4976 | self.assertEqual(packet[TCP].dport, server_tcp_in_port) |
| 4977 | self.check_tcp_checksum(packet) |
| 4978 | client_tcp_out_port = packet[TCP].sport |
| 4979 | else: |
| 4980 | self.assertNotEqual(packet[UDP].sport, client_udp_in_port) |
| 4981 | self.assertEqual(packet[UDP].dport, server_udp_in_port) |
| 4982 | self.check_udp_checksum(packet) |
| 4983 | client_udp_out_port = packet[UDP].sport |
| 4984 | except: |
| 4985 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 4986 | raise |
| 4987 | |
| 4988 | # server to client |
| 4989 | pkts = [] |
| 4990 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 4991 | IPv6(src=server.ip6, dst=nat_addr_ip6) / |
| 4992 | TCP(sport=server_tcp_in_port, dport=client_tcp_out_port)) |
| 4993 | pkts.append(p) |
| 4994 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 4995 | IPv6(src=server.ip6, dst=nat_addr_ip6) / |
| 4996 | UDP(sport=server_udp_in_port, dport=client_udp_out_port)) |
| 4997 | pkts.append(p) |
| 4998 | self.pg0.add_stream(pkts) |
| 4999 | self.pg_enable_capture(self.pg_interfaces) |
| 5000 | self.pg_start() |
| 5001 | capture = self.pg0.get_capture(len(pkts)) |
| 5002 | for packet in capture: |
| 5003 | try: |
| 5004 | self.assertEqual(packet[IPv6].src, nat_addr_ip6) |
| 5005 | self.assertEqual(packet[IPv6].dst, client.ip6) |
| 5006 | if packet.haslayer(TCP): |
| 5007 | self.assertEqual(packet[TCP].sport, server_tcp_out_port) |
| 5008 | self.assertEqual(packet[TCP].dport, client_tcp_in_port) |
| 5009 | self.check_tcp_checksum(packet) |
| 5010 | else: |
| 5011 | self.assertEqual(packet[UDP].sport, server_udp_out_port) |
| 5012 | self.assertEqual(packet[UDP].dport, client_udp_in_port) |
| 5013 | self.check_udp_checksum(packet) |
| 5014 | except: |
| 5015 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5016 | raise |
| 5017 | |
| 5018 | # ICMP error |
| 5019 | pkts = [] |
| 5020 | pkts = [Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5021 | IPv6(src=client.ip6, dst=nat_addr_ip6) / |
| 5022 | ICMPv6DestUnreach(code=1) / |
| 5023 | packet[IPv6] for packet in capture] |
| 5024 | self.pg0.add_stream(pkts) |
| 5025 | self.pg_enable_capture(self.pg_interfaces) |
| 5026 | self.pg_start() |
| 5027 | capture = self.pg0.get_capture(len(pkts)) |
| 5028 | for packet in capture: |
| 5029 | try: |
| 5030 | self.assertEqual(packet[IPv6].src, nat_addr_ip6) |
| 5031 | self.assertEqual(packet[IPv6].dst, server.ip6) |
| 5032 | icmp = packet[ICMPv6DestUnreach] |
| 5033 | self.assertEqual(icmp.code, 1) |
| 5034 | inner = icmp[IPerror6] |
| 5035 | self.assertEqual(inner.src, server.ip6) |
| 5036 | self.assertEqual(inner.dst, nat_addr_ip6) |
| 5037 | self.check_icmpv6_checksum(packet) |
| 5038 | if inner.haslayer(TCPerror): |
| 5039 | self.assertEqual(inner[TCPerror].sport, server_tcp_in_port) |
| 5040 | self.assertEqual(inner[TCPerror].dport, |
| 5041 | client_tcp_out_port) |
| 5042 | else: |
| 5043 | self.assertEqual(inner[UDPerror].sport, server_udp_in_port) |
| 5044 | self.assertEqual(inner[UDPerror].dport, |
| 5045 | client_udp_out_port) |
| 5046 | except: |
| 5047 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5048 | raise |
| 5049 | |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 5050 | def test_prefix(self): |
| 5051 | """ NAT64 Network-Specific Prefix """ |
| 5052 | |
| 5053 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5054 | self.nat_addr_n) |
| 5055 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5056 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5057 | self.vapi.nat64_add_del_pool_addr_range(self.vrf1_nat_addr_n, |
| 5058 | self.vrf1_nat_addr_n, |
| 5059 | vrf_id=self.vrf1_id) |
| 5060 | self.vapi.nat64_add_del_interface(self.pg2.sw_if_index) |
| 5061 | |
| 5062 | # Add global prefix |
| 5063 | global_pref64 = "2001:db8::" |
| 5064 | global_pref64_n = socket.inet_pton(socket.AF_INET6, global_pref64) |
| 5065 | global_pref64_len = 32 |
| 5066 | self.vapi.nat64_add_del_prefix(global_pref64_n, global_pref64_len) |
| 5067 | |
| 5068 | prefix = self.vapi.nat64_prefix_dump() |
| 5069 | self.assertEqual(len(prefix), 1) |
| 5070 | self.assertEqual(prefix[0].prefix, global_pref64_n) |
| 5071 | self.assertEqual(prefix[0].prefix_len, global_pref64_len) |
| 5072 | self.assertEqual(prefix[0].vrf_id, 0) |
| 5073 | |
| 5074 | # Add tenant specific prefix |
| 5075 | vrf1_pref64 = "2001:db8:122:300::" |
| 5076 | vrf1_pref64_n = socket.inet_pton(socket.AF_INET6, vrf1_pref64) |
| 5077 | vrf1_pref64_len = 56 |
| 5078 | self.vapi.nat64_add_del_prefix(vrf1_pref64_n, |
| 5079 | vrf1_pref64_len, |
| 5080 | vrf_id=self.vrf1_id) |
| 5081 | prefix = self.vapi.nat64_prefix_dump() |
| 5082 | self.assertEqual(len(prefix), 2) |
| 5083 | |
| 5084 | # Global prefix |
| 5085 | pkts = self.create_stream_in_ip6(self.pg0, |
| 5086 | self.pg1, |
| 5087 | pref=global_pref64, |
| 5088 | plen=global_pref64_len) |
| 5089 | self.pg0.add_stream(pkts) |
| 5090 | self.pg_enable_capture(self.pg_interfaces) |
| 5091 | self.pg_start() |
| 5092 | capture = self.pg1.get_capture(len(pkts)) |
| 5093 | self.verify_capture_out(capture, nat_ip=self.nat_addr, |
| 5094 | dst_ip=self.pg1.remote_ip4) |
| 5095 | |
| 5096 | pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr) |
| 5097 | self.pg1.add_stream(pkts) |
| 5098 | self.pg_enable_capture(self.pg_interfaces) |
| 5099 | self.pg_start() |
| 5100 | capture = self.pg0.get_capture(len(pkts)) |
| 5101 | dst_ip = self.compose_ip6(self.pg1.remote_ip4, |
| 5102 | global_pref64, |
| 5103 | global_pref64_len) |
| 5104 | self.verify_capture_in_ip6(capture, dst_ip, self.pg0.remote_ip6) |
| 5105 | |
| 5106 | # Tenant specific prefix |
| 5107 | pkts = self.create_stream_in_ip6(self.pg2, |
| 5108 | self.pg1, |
| 5109 | pref=vrf1_pref64, |
| 5110 | plen=vrf1_pref64_len) |
| 5111 | self.pg2.add_stream(pkts) |
| 5112 | self.pg_enable_capture(self.pg_interfaces) |
| 5113 | self.pg_start() |
| 5114 | capture = self.pg1.get_capture(len(pkts)) |
| 5115 | self.verify_capture_out(capture, nat_ip=self.vrf1_nat_addr, |
| 5116 | dst_ip=self.pg1.remote_ip4) |
| 5117 | |
| 5118 | pkts = self.create_stream_out(self.pg1, dst_ip=self.vrf1_nat_addr) |
| 5119 | self.pg1.add_stream(pkts) |
| 5120 | self.pg_enable_capture(self.pg_interfaces) |
| 5121 | self.pg_start() |
| 5122 | capture = self.pg2.get_capture(len(pkts)) |
| 5123 | dst_ip = self.compose_ip6(self.pg1.remote_ip4, |
| 5124 | vrf1_pref64, |
| 5125 | vrf1_pref64_len) |
| 5126 | self.verify_capture_in_ip6(capture, dst_ip, self.pg2.remote_ip6) |
| 5127 | |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5128 | def test_unknown_proto(self): |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5129 | """ NAT64 translate packet with unknown protocol """ |
| 5130 | |
| 5131 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5132 | self.nat_addr_n) |
| 5133 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5134 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5135 | remote_ip6 = self.compose_ip6(self.pg1.remote_ip4, '64:ff9b::', 96) |
| 5136 | |
| 5137 | # in2out |
| 5138 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5139 | IPv6(src=self.pg0.remote_ip6, dst=remote_ip6) / |
| 5140 | TCP(sport=self.tcp_port_in, dport=20)) |
| 5141 | self.pg0.add_stream(p) |
| 5142 | self.pg_enable_capture(self.pg_interfaces) |
| 5143 | self.pg_start() |
| 5144 | p = self.pg1.get_capture(1) |
| 5145 | |
| 5146 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5147 | IPv6(src=self.pg0.remote_ip6, dst=remote_ip6, nh=47) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5148 | GRE() / |
| 5149 | IP(src=self.pg2.local_ip4, dst=self.pg2.remote_ip4) / |
| 5150 | TCP(sport=1234, dport=1234)) |
| 5151 | self.pg0.add_stream(p) |
| 5152 | self.pg_enable_capture(self.pg_interfaces) |
| 5153 | self.pg_start() |
| 5154 | p = self.pg1.get_capture(1) |
| 5155 | packet = p[0] |
| 5156 | try: |
| 5157 | self.assertEqual(packet[IP].src, self.nat_addr) |
| 5158 | self.assertEqual(packet[IP].dst, self.pg1.remote_ip4) |
| 5159 | self.assertTrue(packet.haslayer(GRE)) |
| 5160 | self.check_ip_checksum(packet) |
| 5161 | except: |
| 5162 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5163 | raise |
| 5164 | |
| 5165 | # out2in |
| 5166 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5167 | IP(src=self.pg1.remote_ip4, dst=self.nat_addr) / |
| 5168 | GRE() / |
| 5169 | IP(src=self.pg2.remote_ip4, dst=self.pg2.local_ip4) / |
| 5170 | TCP(sport=1234, dport=1234)) |
| 5171 | self.pg1.add_stream(p) |
| 5172 | self.pg_enable_capture(self.pg_interfaces) |
| 5173 | self.pg_start() |
| 5174 | p = self.pg0.get_capture(1) |
| 5175 | packet = p[0] |
| 5176 | try: |
| 5177 | self.assertEqual(packet[IPv6].src, remote_ip6) |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5178 | self.assertEqual(packet[IPv6].dst, self.pg0.remote_ip6) |
| 5179 | self.assertEqual(packet[IPv6].nh, 47) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5180 | except: |
| 5181 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5182 | raise |
| 5183 | |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5184 | def test_hairpinning_unknown_proto(self): |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5185 | """ NAT64 translate packet with unknown protocol - hairpinning """ |
| 5186 | |
| 5187 | client = self.pg0.remote_hosts[0] |
| 5188 | server = self.pg0.remote_hosts[1] |
| 5189 | server_tcp_in_port = 22 |
| 5190 | server_tcp_out_port = 4022 |
| 5191 | client_tcp_in_port = 1234 |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5192 | client_tcp_out_port = 1235 |
| 5193 | server_nat_ip = "10.0.0.100" |
| 5194 | client_nat_ip = "10.0.0.110" |
| 5195 | server_nat_ip_n = socket.inet_pton(socket.AF_INET, server_nat_ip) |
| 5196 | client_nat_ip_n = socket.inet_pton(socket.AF_INET, client_nat_ip) |
| 5197 | server_nat_ip6 = self.compose_ip6(server_nat_ip, '64:ff9b::', 96) |
| 5198 | client_nat_ip6 = self.compose_ip6(client_nat_ip, '64:ff9b::', 96) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5199 | |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5200 | self.vapi.nat64_add_del_pool_addr_range(server_nat_ip_n, |
| 5201 | client_nat_ip_n) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5202 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5203 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5204 | |
| 5205 | self.vapi.nat64_add_del_static_bib(server.ip6n, |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5206 | server_nat_ip_n, |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5207 | server_tcp_in_port, |
| 5208 | server_tcp_out_port, |
| 5209 | IP_PROTOS.tcp) |
| 5210 | |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5211 | self.vapi.nat64_add_del_static_bib(server.ip6n, |
| 5212 | server_nat_ip_n, |
| 5213 | 0, |
| 5214 | 0, |
| 5215 | IP_PROTOS.gre) |
| 5216 | |
| 5217 | self.vapi.nat64_add_del_static_bib(client.ip6n, |
| 5218 | client_nat_ip_n, |
| 5219 | client_tcp_in_port, |
| 5220 | client_tcp_out_port, |
| 5221 | IP_PROTOS.tcp) |
| 5222 | |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5223 | # client to server |
| 5224 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5225 | IPv6(src=client.ip6, dst=server_nat_ip6) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5226 | TCP(sport=client_tcp_in_port, dport=server_tcp_out_port)) |
| 5227 | self.pg0.add_stream(p) |
| 5228 | self.pg_enable_capture(self.pg_interfaces) |
| 5229 | self.pg_start() |
| 5230 | p = self.pg0.get_capture(1) |
| 5231 | |
| 5232 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5233 | IPv6(src=client.ip6, dst=server_nat_ip6, nh=IP_PROTOS.gre) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5234 | GRE() / |
| 5235 | IP(src=self.pg2.local_ip4, dst=self.pg2.remote_ip4) / |
| 5236 | TCP(sport=1234, dport=1234)) |
| 5237 | self.pg0.add_stream(p) |
| 5238 | self.pg_enable_capture(self.pg_interfaces) |
| 5239 | self.pg_start() |
| 5240 | p = self.pg0.get_capture(1) |
| 5241 | packet = p[0] |
| 5242 | try: |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5243 | self.assertEqual(packet[IPv6].src, client_nat_ip6) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5244 | self.assertEqual(packet[IPv6].dst, server.ip6) |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5245 | self.assertEqual(packet[IPv6].nh, IP_PROTOS.gre) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5246 | except: |
| 5247 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5248 | raise |
| 5249 | |
| 5250 | # server to client |
| 5251 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5252 | IPv6(src=server.ip6, dst=client_nat_ip6, nh=IP_PROTOS.gre) / |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5253 | GRE() / |
| 5254 | IP(src=self.pg2.remote_ip4, dst=self.pg2.local_ip4) / |
| 5255 | TCP(sport=1234, dport=1234)) |
| 5256 | self.pg0.add_stream(p) |
| 5257 | self.pg_enable_capture(self.pg_interfaces) |
| 5258 | self.pg_start() |
| 5259 | p = self.pg0.get_capture(1) |
| 5260 | packet = p[0] |
| 5261 | try: |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5262 | self.assertEqual(packet[IPv6].src, server_nat_ip6) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5263 | self.assertEqual(packet[IPv6].dst, client.ip6) |
Matus Fabian | f8cd581 | 2017-07-11 03:55:02 -0700 | [diff] [blame] | 5264 | self.assertEqual(packet[IPv6].nh, IP_PROTOS.gre) |
Matus Fabian | 7968e6c | 2017-07-06 05:37:49 -0700 | [diff] [blame] | 5265 | except: |
| 5266 | self.logger.error(ppp("Unexpected or invalid packet:", packet)) |
| 5267 | raise |
| 5268 | |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 5269 | def test_one_armed_nat64(self): |
| 5270 | """ One armed NAT64 """ |
| 5271 | external_port = 0 |
| 5272 | remote_host_ip6 = self.compose_ip6(self.pg3.remote_ip4, |
| 5273 | '64:ff9b::', |
| 5274 | 96) |
| 5275 | |
| 5276 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5277 | self.nat_addr_n) |
| 5278 | self.vapi.nat64_add_del_interface(self.pg3.sw_if_index) |
| 5279 | self.vapi.nat64_add_del_interface(self.pg3.sw_if_index, is_inside=0) |
| 5280 | |
| 5281 | # in2out |
| 5282 | p = (Ether(src=self.pg3.remote_mac, dst=self.pg3.local_mac) / |
| 5283 | IPv6(src=self.pg3.remote_ip6, dst=remote_host_ip6) / |
| 5284 | TCP(sport=12345, dport=80)) |
| 5285 | self.pg3.add_stream(p) |
| 5286 | self.pg_enable_capture(self.pg_interfaces) |
| 5287 | self.pg_start() |
| 5288 | capture = self.pg3.get_capture(1) |
| 5289 | p = capture[0] |
| 5290 | try: |
| 5291 | ip = p[IP] |
| 5292 | tcp = p[TCP] |
| 5293 | self.assertEqual(ip.src, self.nat_addr) |
| 5294 | self.assertEqual(ip.dst, self.pg3.remote_ip4) |
| 5295 | self.assertNotEqual(tcp.sport, 12345) |
| 5296 | external_port = tcp.sport |
| 5297 | self.assertEqual(tcp.dport, 80) |
| 5298 | self.check_tcp_checksum(p) |
| 5299 | self.check_ip_checksum(p) |
| 5300 | except: |
| 5301 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 5302 | raise |
| 5303 | |
| 5304 | # out2in |
| 5305 | p = (Ether(src=self.pg3.remote_mac, dst=self.pg3.local_mac) / |
| 5306 | IP(src=self.pg3.remote_ip4, dst=self.nat_addr) / |
| 5307 | TCP(sport=80, dport=external_port)) |
| 5308 | self.pg3.add_stream(p) |
| 5309 | self.pg_enable_capture(self.pg_interfaces) |
| 5310 | self.pg_start() |
| 5311 | capture = self.pg3.get_capture(1) |
| 5312 | p = capture[0] |
| 5313 | try: |
| 5314 | ip = p[IPv6] |
| 5315 | tcp = p[TCP] |
| 5316 | self.assertEqual(ip.src, remote_host_ip6) |
| 5317 | self.assertEqual(ip.dst, self.pg3.remote_ip6) |
| 5318 | self.assertEqual(tcp.sport, 80) |
| 5319 | self.assertEqual(tcp.dport, 12345) |
| 5320 | self.check_tcp_checksum(p) |
| 5321 | except: |
| 5322 | self.logger.error(ppp("Unexpected or invalid packet:", p)) |
| 5323 | raise |
| 5324 | |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 5325 | def test_frag_in_order(self): |
| 5326 | """ NAT64 translate fragments arriving in order """ |
| 5327 | self.tcp_port_in = random.randint(1025, 65535) |
| 5328 | |
| 5329 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5330 | self.nat_addr_n) |
| 5331 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5332 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5333 | |
| 5334 | reass = self.vapi.nat_reass_dump() |
| 5335 | reass_n_start = len(reass) |
| 5336 | |
| 5337 | # in2out |
| 5338 | data = 'a' * 200 |
| 5339 | pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4, |
| 5340 | self.tcp_port_in, 20, data) |
| 5341 | self.pg0.add_stream(pkts) |
| 5342 | self.pg_enable_capture(self.pg_interfaces) |
| 5343 | self.pg_start() |
| 5344 | frags = self.pg1.get_capture(len(pkts)) |
| 5345 | p = self.reass_frags_and_verify(frags, |
| 5346 | self.nat_addr, |
| 5347 | self.pg1.remote_ip4) |
| 5348 | self.assertEqual(p[TCP].dport, 20) |
| 5349 | self.assertNotEqual(p[TCP].sport, self.tcp_port_in) |
| 5350 | self.tcp_port_out = p[TCP].sport |
| 5351 | self.assertEqual(data, p[Raw].load) |
| 5352 | |
| 5353 | # out2in |
| 5354 | data = "A" * 4 + "b" * 16 + "C" * 3 |
| 5355 | pkts = self.create_stream_frag(self.pg1, |
| 5356 | self.nat_addr, |
| 5357 | 20, |
| 5358 | self.tcp_port_out, |
| 5359 | data) |
| 5360 | self.pg1.add_stream(pkts) |
| 5361 | self.pg_enable_capture(self.pg_interfaces) |
| 5362 | self.pg_start() |
| 5363 | frags = self.pg0.get_capture(len(pkts)) |
| 5364 | src = self.compose_ip6(self.pg1.remote_ip4, '64:ff9b::', 96) |
| 5365 | p = self.reass_frags_and_verify_ip6(frags, src, self.pg0.remote_ip6) |
| 5366 | self.assertEqual(p[TCP].sport, 20) |
| 5367 | self.assertEqual(p[TCP].dport, self.tcp_port_in) |
| 5368 | self.assertEqual(data, p[Raw].load) |
| 5369 | |
| 5370 | reass = self.vapi.nat_reass_dump() |
| 5371 | reass_n_end = len(reass) |
| 5372 | |
| 5373 | self.assertEqual(reass_n_end - reass_n_start, 2) |
| 5374 | |
| 5375 | def test_reass_hairpinning(self): |
| 5376 | """ NAT64 fragments hairpinning """ |
| 5377 | data = 'a' * 200 |
| 5378 | client = self.pg0.remote_hosts[0] |
| 5379 | server = self.pg0.remote_hosts[1] |
| 5380 | server_in_port = random.randint(1025, 65535) |
| 5381 | server_out_port = random.randint(1025, 65535) |
| 5382 | client_in_port = random.randint(1025, 65535) |
| 5383 | ip = IPv6(src=''.join(['64:ff9b::', self.nat_addr])) |
| 5384 | nat_addr_ip6 = ip.src |
| 5385 | |
| 5386 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5387 | self.nat_addr_n) |
| 5388 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5389 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5390 | |
| 5391 | # add static BIB entry for server |
| 5392 | self.vapi.nat64_add_del_static_bib(server.ip6n, |
| 5393 | self.nat_addr_n, |
| 5394 | server_in_port, |
| 5395 | server_out_port, |
| 5396 | IP_PROTOS.tcp) |
| 5397 | |
| 5398 | # send packet from host to server |
| 5399 | pkts = self.create_stream_frag_ip6(self.pg0, |
| 5400 | self.nat_addr, |
| 5401 | client_in_port, |
| 5402 | server_out_port, |
| 5403 | data) |
| 5404 | self.pg0.add_stream(pkts) |
| 5405 | self.pg_enable_capture(self.pg_interfaces) |
| 5406 | self.pg_start() |
| 5407 | frags = self.pg0.get_capture(len(pkts)) |
| 5408 | p = self.reass_frags_and_verify_ip6(frags, nat_addr_ip6, server.ip6) |
| 5409 | self.assertNotEqual(p[TCP].sport, client_in_port) |
| 5410 | self.assertEqual(p[TCP].dport, server_in_port) |
| 5411 | self.assertEqual(data, p[Raw].load) |
| 5412 | |
| 5413 | def test_frag_out_of_order(self): |
| 5414 | """ NAT64 translate fragments arriving out of order """ |
| 5415 | self.tcp_port_in = random.randint(1025, 65535) |
| 5416 | |
| 5417 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5418 | self.nat_addr_n) |
| 5419 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5420 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5421 | |
| 5422 | # in2out |
| 5423 | data = 'a' * 200 |
| 5424 | pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4, |
| 5425 | self.tcp_port_in, 20, data) |
| 5426 | pkts.reverse() |
| 5427 | self.pg0.add_stream(pkts) |
| 5428 | self.pg_enable_capture(self.pg_interfaces) |
| 5429 | self.pg_start() |
| 5430 | frags = self.pg1.get_capture(len(pkts)) |
| 5431 | p = self.reass_frags_and_verify(frags, |
| 5432 | self.nat_addr, |
| 5433 | self.pg1.remote_ip4) |
| 5434 | self.assertEqual(p[TCP].dport, 20) |
| 5435 | self.assertNotEqual(p[TCP].sport, self.tcp_port_in) |
| 5436 | self.tcp_port_out = p[TCP].sport |
| 5437 | self.assertEqual(data, p[Raw].load) |
| 5438 | |
| 5439 | # out2in |
| 5440 | data = "A" * 4 + "B" * 16 + "C" * 3 |
| 5441 | pkts = self.create_stream_frag(self.pg1, |
| 5442 | self.nat_addr, |
| 5443 | 20, |
| 5444 | self.tcp_port_out, |
| 5445 | data) |
| 5446 | pkts.reverse() |
| 5447 | self.pg1.add_stream(pkts) |
| 5448 | self.pg_enable_capture(self.pg_interfaces) |
| 5449 | self.pg_start() |
| 5450 | frags = self.pg0.get_capture(len(pkts)) |
| 5451 | src = self.compose_ip6(self.pg1.remote_ip4, '64:ff9b::', 96) |
| 5452 | p = self.reass_frags_and_verify_ip6(frags, src, self.pg0.remote_ip6) |
| 5453 | self.assertEqual(p[TCP].sport, 20) |
| 5454 | self.assertEqual(p[TCP].dport, self.tcp_port_in) |
| 5455 | self.assertEqual(data, p[Raw].load) |
| 5456 | |
Matus Fabian | 0938dcf | 2017-11-08 01:59:38 -0800 | [diff] [blame] | 5457 | def test_interface_addr(self): |
| 5458 | """ Acquire NAT64 pool addresses from interface """ |
| 5459 | self.vapi.nat64_add_interface_addr(self.pg4.sw_if_index) |
| 5460 | |
| 5461 | # no address in NAT64 pool |
| 5462 | adresses = self.vapi.nat44_address_dump() |
| 5463 | self.assertEqual(0, len(adresses)) |
| 5464 | |
| 5465 | # configure interface address and check NAT64 address pool |
| 5466 | self.pg4.config_ip4() |
| 5467 | addresses = self.vapi.nat64_pool_addr_dump() |
| 5468 | self.assertEqual(len(addresses), 1) |
| 5469 | self.assertEqual(addresses[0].address, self.pg4.local_ip4n) |
| 5470 | |
| 5471 | # remove interface address and check NAT64 address pool |
| 5472 | self.pg4.unconfig_ip4() |
| 5473 | addresses = self.vapi.nat64_pool_addr_dump() |
| 5474 | self.assertEqual(0, len(adresses)) |
| 5475 | |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 5476 | @unittest.skipUnless(running_extended_tests(), "part of extended tests") |
| 5477 | def test_ipfix_max_bibs_sessions(self): |
| 5478 | """ IPFIX logging maximum session and BIB entries exceeded """ |
| 5479 | max_bibs = 1280 |
| 5480 | max_sessions = 2560 |
| 5481 | remote_host_ip6 = self.compose_ip6(self.pg1.remote_ip4, |
| 5482 | '64:ff9b::', |
| 5483 | 96) |
| 5484 | |
| 5485 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5486 | self.nat_addr_n) |
| 5487 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5488 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5489 | |
| 5490 | pkts = [] |
| 5491 | src = "" |
| 5492 | for i in range(0, max_bibs): |
| 5493 | src = "fd01:aa::%x" % (i) |
| 5494 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 5495 | IPv6(src=src, dst=remote_host_ip6) / |
| 5496 | TCP(sport=12345, dport=80)) |
| 5497 | pkts.append(p) |
| 5498 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 5499 | IPv6(src=src, dst=remote_host_ip6) / |
| 5500 | TCP(sport=12345, dport=22)) |
| 5501 | pkts.append(p) |
| 5502 | self.pg0.add_stream(pkts) |
| 5503 | self.pg_enable_capture(self.pg_interfaces) |
| 5504 | self.pg_start() |
| 5505 | self.pg1.get_capture(max_sessions) |
| 5506 | |
| 5507 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 5508 | src_address=self.pg3.local_ip4n, |
| 5509 | path_mtu=512, |
| 5510 | template_interval=10) |
| 5511 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 5512 | src_port=self.ipfix_src_port) |
| 5513 | |
| 5514 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 5515 | IPv6(src=src, dst=remote_host_ip6) / |
| 5516 | TCP(sport=12345, dport=25)) |
| 5517 | self.pg0.add_stream(p) |
| 5518 | self.pg_enable_capture(self.pg_interfaces) |
| 5519 | self.pg_start() |
| 5520 | self.pg1.get_capture(0) |
| 5521 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 5522 | capture = self.pg3.get_capture(9) |
| 5523 | ipfix = IPFIXDecoder() |
| 5524 | # first load template |
| 5525 | for p in capture: |
| 5526 | self.assertTrue(p.haslayer(IPFIX)) |
| 5527 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 5528 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 5529 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 5530 | self.assertEqual(p[UDP].dport, 4739) |
| 5531 | self.assertEqual(p[IPFIX].observationDomainID, |
| 5532 | self.ipfix_domain_id) |
| 5533 | if p.haslayer(Template): |
| 5534 | ipfix.add_template(p.getlayer(Template)) |
| 5535 | # verify events in data set |
| 5536 | for p in capture: |
| 5537 | if p.haslayer(Data): |
| 5538 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 5539 | self.verify_ipfix_max_sessions(data, max_sessions) |
| 5540 | |
| 5541 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 5542 | IPv6(src=self.pg0.remote_ip6, dst=remote_host_ip6) / |
| 5543 | TCP(sport=12345, dport=80)) |
| 5544 | self.pg0.add_stream(p) |
| 5545 | self.pg_enable_capture(self.pg_interfaces) |
| 5546 | self.pg_start() |
| 5547 | self.pg1.get_capture(0) |
| 5548 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 5549 | capture = self.pg3.get_capture(1) |
| 5550 | # verify events in data set |
| 5551 | for p in capture: |
| 5552 | self.assertTrue(p.haslayer(IPFIX)) |
| 5553 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 5554 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 5555 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 5556 | self.assertEqual(p[UDP].dport, 4739) |
| 5557 | self.assertEqual(p[IPFIX].observationDomainID, |
| 5558 | self.ipfix_domain_id) |
| 5559 | if p.haslayer(Data): |
| 5560 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 5561 | self.verify_ipfix_max_bibs(data, max_bibs) |
| 5562 | |
| 5563 | def test_ipfix_max_frags(self): |
| 5564 | """ IPFIX logging maximum fragments pending reassembly exceeded """ |
| 5565 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5566 | self.nat_addr_n) |
| 5567 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5568 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5569 | self.vapi.nat_set_reass(max_frag=0, is_ip6=1) |
| 5570 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 5571 | src_address=self.pg3.local_ip4n, |
| 5572 | path_mtu=512, |
| 5573 | template_interval=10) |
| 5574 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 5575 | src_port=self.ipfix_src_port) |
| 5576 | |
| 5577 | data = 'a' * 200 |
| 5578 | pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4, |
| 5579 | self.tcp_port_in, 20, data) |
| 5580 | self.pg0.add_stream(pkts[-1]) |
| 5581 | self.pg_enable_capture(self.pg_interfaces) |
| 5582 | self.pg_start() |
| 5583 | self.pg1.get_capture(0) |
| 5584 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 5585 | capture = self.pg3.get_capture(9) |
| 5586 | ipfix = IPFIXDecoder() |
| 5587 | # first load template |
| 5588 | for p in capture: |
| 5589 | self.assertTrue(p.haslayer(IPFIX)) |
| 5590 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 5591 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 5592 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 5593 | self.assertEqual(p[UDP].dport, 4739) |
| 5594 | self.assertEqual(p[IPFIX].observationDomainID, |
| 5595 | self.ipfix_domain_id) |
| 5596 | if p.haslayer(Template): |
| 5597 | ipfix.add_template(p.getlayer(Template)) |
| 5598 | # verify events in data set |
| 5599 | for p in capture: |
| 5600 | if p.haslayer(Data): |
| 5601 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 5602 | self.verify_ipfix_max_fragments_ip6(data, 0, |
| 5603 | self.pg0.remote_ip6n) |
| 5604 | |
| 5605 | def test_ipfix_bib_ses(self): |
| 5606 | """ IPFIX logging NAT64 BIB/session create and delete events """ |
| 5607 | self.tcp_port_in = random.randint(1025, 65535) |
| 5608 | remote_host_ip6 = self.compose_ip6(self.pg1.remote_ip4, |
| 5609 | '64:ff9b::', |
| 5610 | 96) |
| 5611 | |
| 5612 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5613 | self.nat_addr_n) |
| 5614 | self.vapi.nat64_add_del_interface(self.pg0.sw_if_index) |
| 5615 | self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0) |
| 5616 | self.vapi.set_ipfix_exporter(collector_address=self.pg3.remote_ip4n, |
| 5617 | src_address=self.pg3.local_ip4n, |
| 5618 | path_mtu=512, |
| 5619 | template_interval=10) |
| 5620 | self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id, |
| 5621 | src_port=self.ipfix_src_port) |
| 5622 | |
| 5623 | # Create |
| 5624 | p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / |
| 5625 | IPv6(src=self.pg0.remote_ip6, dst=remote_host_ip6) / |
| 5626 | TCP(sport=self.tcp_port_in, dport=25)) |
| 5627 | self.pg0.add_stream(p) |
| 5628 | self.pg_enable_capture(self.pg_interfaces) |
| 5629 | self.pg_start() |
| 5630 | p = self.pg1.get_capture(1) |
| 5631 | self.tcp_port_out = p[0][TCP].sport |
| 5632 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 5633 | capture = self.pg3.get_capture(10) |
| 5634 | ipfix = IPFIXDecoder() |
| 5635 | # first load template |
| 5636 | for p in capture: |
| 5637 | self.assertTrue(p.haslayer(IPFIX)) |
| 5638 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 5639 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 5640 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 5641 | self.assertEqual(p[UDP].dport, 4739) |
| 5642 | self.assertEqual(p[IPFIX].observationDomainID, |
| 5643 | self.ipfix_domain_id) |
| 5644 | if p.haslayer(Template): |
| 5645 | ipfix.add_template(p.getlayer(Template)) |
| 5646 | # verify events in data set |
| 5647 | for p in capture: |
| 5648 | if p.haslayer(Data): |
| 5649 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 5650 | if ord(data[0][230]) == 10: |
| 5651 | self.verify_ipfix_bib(data, 1, self.pg0.remote_ip6n) |
| 5652 | elif ord(data[0][230]) == 6: |
| 5653 | self.verify_ipfix_nat64_ses(data, |
| 5654 | 1, |
| 5655 | self.pg0.remote_ip6n, |
| 5656 | self.pg1.remote_ip4, |
| 5657 | 25) |
| 5658 | else: |
| 5659 | self.logger.error(ppp("Unexpected or invalid packet: ", p)) |
| 5660 | |
| 5661 | # Delete |
| 5662 | self.pg_enable_capture(self.pg_interfaces) |
| 5663 | self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n, |
| 5664 | self.nat_addr_n, |
| 5665 | is_add=0) |
| 5666 | self.vapi.cli("ipfix flush") # FIXME this should be an API call |
| 5667 | capture = self.pg3.get_capture(2) |
| 5668 | # verify events in data set |
| 5669 | for p in capture: |
| 5670 | self.assertTrue(p.haslayer(IPFIX)) |
| 5671 | self.assertEqual(p[IP].src, self.pg3.local_ip4) |
| 5672 | self.assertEqual(p[IP].dst, self.pg3.remote_ip4) |
| 5673 | self.assertEqual(p[UDP].sport, self.ipfix_src_port) |
| 5674 | self.assertEqual(p[UDP].dport, 4739) |
| 5675 | self.assertEqual(p[IPFIX].observationDomainID, |
| 5676 | self.ipfix_domain_id) |
| 5677 | if p.haslayer(Data): |
| 5678 | data = ipfix.decode_data_set(p.getlayer(Set)) |
| 5679 | if ord(data[0][230]) == 11: |
| 5680 | self.verify_ipfix_bib(data, 0, self.pg0.remote_ip6n) |
| 5681 | elif ord(data[0][230]) == 7: |
| 5682 | self.verify_ipfix_nat64_ses(data, |
| 5683 | 0, |
| 5684 | self.pg0.remote_ip6n, |
| 5685 | self.pg1.remote_ip4, |
| 5686 | 25) |
| 5687 | else: |
| 5688 | self.logger.error(ppp("Unexpected or invalid packet: ", p)) |
| 5689 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5690 | def nat64_get_ses_num(self): |
| 5691 | """ |
| 5692 | Return number of active NAT64 sessions. |
| 5693 | """ |
Matus Fabian | ab9a59c | 2017-08-16 05:37:36 -0700 | [diff] [blame] | 5694 | st = self.vapi.nat64_st_dump() |
| 5695 | return len(st) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5696 | |
| 5697 | def clear_nat64(self): |
| 5698 | """ |
| 5699 | Clear NAT64 configuration. |
| 5700 | """ |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 5701 | self.vapi.nat_ipfix(enable=0, src_port=self.ipfix_src_port, |
| 5702 | domain_id=self.ipfix_domain_id) |
| 5703 | self.ipfix_src_port = 4739 |
| 5704 | self.ipfix_domain_id = 1 |
| 5705 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5706 | self.vapi.nat64_set_timeouts() |
| 5707 | |
| 5708 | interfaces = self.vapi.nat64_interface_dump() |
| 5709 | for intf in interfaces: |
Matus Fabian | 36ea2d6 | 2017-10-24 04:13:49 -0700 | [diff] [blame] | 5710 | if intf.is_inside > 1: |
| 5711 | self.vapi.nat64_add_del_interface(intf.sw_if_index, |
| 5712 | 0, |
| 5713 | is_add=0) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5714 | self.vapi.nat64_add_del_interface(intf.sw_if_index, |
| 5715 | intf.is_inside, |
| 5716 | is_add=0) |
| 5717 | |
Matus Fabian | a431ad1 | 2018-01-04 04:03:14 -0800 | [diff] [blame] | 5718 | bib = self.vapi.nat64_bib_dump(255) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5719 | for bibe in bib: |
| 5720 | if bibe.is_static: |
| 5721 | self.vapi.nat64_add_del_static_bib(bibe.i_addr, |
| 5722 | bibe.o_addr, |
| 5723 | bibe.i_port, |
| 5724 | bibe.o_port, |
| 5725 | bibe.proto, |
| 5726 | bibe.vrf_id, |
| 5727 | is_add=0) |
| 5728 | |
| 5729 | adresses = self.vapi.nat64_pool_addr_dump() |
| 5730 | for addr in adresses: |
| 5731 | self.vapi.nat64_add_del_pool_addr_range(addr.address, |
| 5732 | addr.address, |
Matus Fabian | 029f3d2 | 2017-06-15 02:28:50 -0700 | [diff] [blame] | 5733 | vrf_id=addr.vrf_id, |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5734 | is_add=0) |
| 5735 | |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 5736 | prefixes = self.vapi.nat64_prefix_dump() |
| 5737 | for prefix in prefixes: |
| 5738 | self.vapi.nat64_add_del_prefix(prefix.prefix, |
| 5739 | prefix.prefix_len, |
| 5740 | vrf_id=prefix.vrf_id, |
| 5741 | is_add=0) |
| 5742 | |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5743 | def tearDown(self): |
| 5744 | super(TestNAT64, self).tearDown() |
| 5745 | if not self.vpp_dead: |
| 5746 | self.logger.info(self.vapi.cli("show nat64 pool")) |
| 5747 | self.logger.info(self.vapi.cli("show nat64 interfaces")) |
Matus Fabian | 428dc91 | 2017-06-21 06:15:18 -0700 | [diff] [blame] | 5748 | self.logger.info(self.vapi.cli("show nat64 prefix")) |
Matus Fabian | ab9a59c | 2017-08-16 05:37:36 -0700 | [diff] [blame] | 5749 | self.logger.info(self.vapi.cli("show nat64 bib all")) |
| 5750 | self.logger.info(self.vapi.cli("show nat64 session table all")) |
Matus Fabian | efcd1e9 | 2017-08-15 06:59:19 -0700 | [diff] [blame] | 5751 | self.logger.info(self.vapi.cli("show nat virtual-reassembly")) |
Matus Fabian | 06596c5 | 2017-06-06 04:53:28 -0700 | [diff] [blame] | 5752 | self.clear_nat64() |
| 5753 | |
Matus Fabian | 8ebe625 | 2017-11-06 05:04:53 -0800 | [diff] [blame] | 5754 | |
| 5755 | class TestDSlite(MethodHolder): |
| 5756 | """ DS-Lite Test Cases """ |
| 5757 | |
| 5758 | @classmethod |
| 5759 | def setUpClass(cls): |
| 5760 | super(TestDSlite, cls).setUpClass() |
| 5761 | |
| 5762 | try: |
| 5763 | cls.nat_addr = '10.0.0.3' |
| 5764 | cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr) |
| 5765 | |
| 5766 | cls.create_pg_interfaces(range(2)) |
| 5767 | cls.pg0.admin_up() |
| 5768 | cls.pg0.config_ip4() |
| 5769 | cls.pg0.resolve_arp() |
| 5770 | cls.pg1.admin_up() |
| 5771 | cls.pg1.config_ip6() |
| 5772 | cls.pg1.generate_remote_hosts(2) |
| 5773 | cls.pg1.configure_ipv6_neighbors() |
| 5774 | |
| 5775 | except Exception: |
| 5776 | super(TestDSlite, cls).tearDownClass() |
| 5777 | raise |
| 5778 | |
| 5779 | def test_dslite(self): |
| 5780 | """ Test DS-Lite """ |
| 5781 | self.vapi.dslite_add_del_pool_addr_range(self.nat_addr_n, |
| 5782 | self.nat_addr_n) |
| 5783 | aftr_ip4 = '192.0.0.1' |
| 5784 | aftr_ip4_n = socket.inet_pton(socket.AF_INET, aftr_ip4) |
| 5785 | aftr_ip6 = '2001:db8:85a3::8a2e:370:1' |
| 5786 | aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6) |
| 5787 | self.vapi.dslite_set_aftr_addr(aftr_ip6_n, aftr_ip4_n) |
| 5788 | |
| 5789 | # UDP |
| 5790 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5791 | IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[0].ip6) / |
| 5792 | IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / |
| 5793 | UDP(sport=20000, dport=10000)) |
| 5794 | self.pg1.add_stream(p) |
| 5795 | self.pg_enable_capture(self.pg_interfaces) |
| 5796 | self.pg_start() |
| 5797 | capture = self.pg0.get_capture(1) |
| 5798 | capture = capture[0] |
| 5799 | self.assertFalse(capture.haslayer(IPv6)) |
| 5800 | self.assertEqual(capture[IP].src, self.nat_addr) |
| 5801 | self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) |
| 5802 | self.assertNotEqual(capture[UDP].sport, 20000) |
| 5803 | self.assertEqual(capture[UDP].dport, 10000) |
| 5804 | self.check_ip_checksum(capture) |
| 5805 | out_port = capture[UDP].sport |
| 5806 | |
| 5807 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5808 | IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / |
| 5809 | UDP(sport=10000, dport=out_port)) |
| 5810 | self.pg0.add_stream(p) |
| 5811 | self.pg_enable_capture(self.pg_interfaces) |
| 5812 | self.pg_start() |
| 5813 | capture = self.pg1.get_capture(1) |
| 5814 | capture = capture[0] |
| 5815 | self.assertEqual(capture[IPv6].src, aftr_ip6) |
| 5816 | self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6) |
| 5817 | self.assertEqual(capture[IP].src, self.pg0.remote_ip4) |
| 5818 | self.assertEqual(capture[IP].dst, '192.168.1.1') |
| 5819 | self.assertEqual(capture[UDP].sport, 10000) |
| 5820 | self.assertEqual(capture[UDP].dport, 20000) |
| 5821 | self.check_ip_checksum(capture) |
| 5822 | |
| 5823 | # TCP |
| 5824 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5825 | IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) / |
| 5826 | IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / |
| 5827 | TCP(sport=20001, dport=10001)) |
| 5828 | self.pg1.add_stream(p) |
| 5829 | self.pg_enable_capture(self.pg_interfaces) |
| 5830 | self.pg_start() |
| 5831 | capture = self.pg0.get_capture(1) |
| 5832 | capture = capture[0] |
| 5833 | self.assertFalse(capture.haslayer(IPv6)) |
| 5834 | self.assertEqual(capture[IP].src, self.nat_addr) |
| 5835 | self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) |
| 5836 | self.assertNotEqual(capture[TCP].sport, 20001) |
| 5837 | self.assertEqual(capture[TCP].dport, 10001) |
| 5838 | self.check_ip_checksum(capture) |
| 5839 | self.check_tcp_checksum(capture) |
| 5840 | out_port = capture[TCP].sport |
| 5841 | |
| 5842 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5843 | IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / |
| 5844 | TCP(sport=10001, dport=out_port)) |
| 5845 | self.pg0.add_stream(p) |
| 5846 | self.pg_enable_capture(self.pg_interfaces) |
| 5847 | self.pg_start() |
| 5848 | capture = self.pg1.get_capture(1) |
| 5849 | capture = capture[0] |
| 5850 | self.assertEqual(capture[IPv6].src, aftr_ip6) |
| 5851 | self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6) |
| 5852 | self.assertEqual(capture[IP].src, self.pg0.remote_ip4) |
| 5853 | self.assertEqual(capture[IP].dst, '192.168.1.1') |
| 5854 | self.assertEqual(capture[TCP].sport, 10001) |
| 5855 | self.assertEqual(capture[TCP].dport, 20001) |
| 5856 | self.check_ip_checksum(capture) |
| 5857 | self.check_tcp_checksum(capture) |
| 5858 | |
| 5859 | # ICMP |
| 5860 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5861 | IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) / |
| 5862 | IP(dst=self.pg0.remote_ip4, src='192.168.1.1') / |
| 5863 | ICMP(id=4000, type='echo-request')) |
| 5864 | self.pg1.add_stream(p) |
| 5865 | self.pg_enable_capture(self.pg_interfaces) |
| 5866 | self.pg_start() |
| 5867 | capture = self.pg0.get_capture(1) |
| 5868 | capture = capture[0] |
| 5869 | self.assertFalse(capture.haslayer(IPv6)) |
| 5870 | self.assertEqual(capture[IP].src, self.nat_addr) |
| 5871 | self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) |
| 5872 | self.assertNotEqual(capture[ICMP].id, 4000) |
| 5873 | self.check_ip_checksum(capture) |
| 5874 | self.check_icmp_checksum(capture) |
| 5875 | out_id = capture[ICMP].id |
| 5876 | |
| 5877 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5878 | IP(dst=self.nat_addr, src=self.pg0.remote_ip4) / |
| 5879 | ICMP(id=out_id, type='echo-reply')) |
| 5880 | self.pg0.add_stream(p) |
| 5881 | self.pg_enable_capture(self.pg_interfaces) |
| 5882 | self.pg_start() |
| 5883 | capture = self.pg1.get_capture(1) |
| 5884 | capture = capture[0] |
| 5885 | self.assertEqual(capture[IPv6].src, aftr_ip6) |
| 5886 | self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6) |
| 5887 | self.assertEqual(capture[IP].src, self.pg0.remote_ip4) |
| 5888 | self.assertEqual(capture[IP].dst, '192.168.1.1') |
| 5889 | self.assertEqual(capture[ICMP].id, 4000) |
| 5890 | self.check_ip_checksum(capture) |
| 5891 | self.check_icmp_checksum(capture) |
| 5892 | |
Matus Fabian | 331acc6 | 2017-12-08 03:38:51 -0800 | [diff] [blame] | 5893 | # ping DS-Lite AFTR tunnel endpoint address |
| 5894 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5895 | IPv6(src=self.pg1.remote_hosts[1].ip6, dst=aftr_ip6) / |
| 5896 | ICMPv6EchoRequest()) |
| 5897 | self.pg1.add_stream(p) |
| 5898 | self.pg_enable_capture(self.pg_interfaces) |
| 5899 | self.pg_start() |
| 5900 | capture = self.pg1.get_capture(1) |
| 5901 | self.assertEqual(1, len(capture)) |
| 5902 | capture = capture[0] |
| 5903 | self.assertEqual(capture[IPv6].src, aftr_ip6) |
| 5904 | self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6) |
| 5905 | self.assertTrue(capture.haslayer(ICMPv6EchoReply)) |
| 5906 | |
Matus Fabian | 8ebe625 | 2017-11-06 05:04:53 -0800 | [diff] [blame] | 5907 | def tearDown(self): |
| 5908 | super(TestDSlite, self).tearDown() |
| 5909 | if not self.vpp_dead: |
| 5910 | self.logger.info(self.vapi.cli("show dslite pool")) |
| 5911 | self.logger.info( |
| 5912 | self.vapi.cli("show dslite aftr-tunnel-endpoint-address")) |
| 5913 | self.logger.info(self.vapi.cli("show dslite sessions")) |
| 5914 | |
Juraj Sloboda | c5c6a33 | 2018-01-09 16:08:32 +0100 | [diff] [blame] | 5915 | |
| 5916 | class TestDSliteCE(MethodHolder): |
| 5917 | """ DS-Lite CE Test Cases """ |
| 5918 | |
| 5919 | @classmethod |
| 5920 | def setUpConstants(cls): |
| 5921 | super(TestDSliteCE, cls).setUpConstants() |
| 5922 | cls.vpp_cmdline.extend(["nat", "{", "dslite ce", "}"]) |
| 5923 | |
| 5924 | @classmethod |
| 5925 | def setUpClass(cls): |
| 5926 | super(TestDSliteCE, cls).setUpClass() |
| 5927 | |
| 5928 | try: |
| 5929 | cls.create_pg_interfaces(range(2)) |
| 5930 | cls.pg0.admin_up() |
| 5931 | cls.pg0.config_ip4() |
| 5932 | cls.pg0.resolve_arp() |
| 5933 | cls.pg1.admin_up() |
| 5934 | cls.pg1.config_ip6() |
| 5935 | cls.pg1.generate_remote_hosts(1) |
| 5936 | cls.pg1.configure_ipv6_neighbors() |
| 5937 | |
| 5938 | except Exception: |
| 5939 | super(TestDSliteCE, cls).tearDownClass() |
| 5940 | raise |
| 5941 | |
| 5942 | def test_dslite_ce(self): |
| 5943 | """ Test DS-Lite CE """ |
| 5944 | |
| 5945 | b4_ip4 = '192.0.0.2' |
| 5946 | b4_ip4_n = socket.inet_pton(socket.AF_INET, b4_ip4) |
| 5947 | b4_ip6 = '2001:db8:62aa::375e:f4c1:1' |
| 5948 | b4_ip6_n = socket.inet_pton(socket.AF_INET6, b4_ip6) |
| 5949 | self.vapi.dslite_set_b4_addr(b4_ip6_n, b4_ip4_n) |
| 5950 | |
| 5951 | aftr_ip4 = '192.0.0.1' |
| 5952 | aftr_ip4_n = socket.inet_pton(socket.AF_INET, aftr_ip4) |
| 5953 | aftr_ip6 = '2001:db8:85a3::8a2e:370:1' |
| 5954 | aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6) |
| 5955 | self.vapi.dslite_set_aftr_addr(aftr_ip6_n, aftr_ip4_n) |
| 5956 | |
| 5957 | self.vapi.ip_add_del_route(dst_address=aftr_ip6_n, |
| 5958 | dst_address_length=128, |
| 5959 | next_hop_address=self.pg1.remote_ip6n, |
| 5960 | next_hop_sw_if_index=self.pg1.sw_if_index, |
| 5961 | is_ipv6=1) |
| 5962 | |
| 5963 | # UDP encapsulation |
| 5964 | p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / |
| 5965 | IP(dst=self.pg1.remote_ip4, src=self.pg0.remote_ip4) / |
| 5966 | UDP(sport=10000, dport=20000)) |
| 5967 | self.pg0.add_stream(p) |
| 5968 | self.pg_enable_capture(self.pg_interfaces) |
| 5969 | self.pg_start() |
| 5970 | capture = self.pg1.get_capture(1) |
| 5971 | capture = capture[0] |
| 5972 | self.assertEqual(capture[IPv6].src, b4_ip6) |
| 5973 | self.assertEqual(capture[IPv6].dst, aftr_ip6) |
| 5974 | self.assertEqual(capture[IP].src, self.pg0.remote_ip4) |
| 5975 | self.assertEqual(capture[IP].dst, self.pg1.remote_ip4) |
| 5976 | self.assertEqual(capture[UDP].sport, 10000) |
| 5977 | self.assertEqual(capture[UDP].dport, 20000) |
| 5978 | self.check_ip_checksum(capture) |
| 5979 | |
| 5980 | # UDP decapsulation |
| 5981 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5982 | IPv6(dst=b4_ip6, src=aftr_ip6) / |
| 5983 | IP(dst=self.pg0.remote_ip4, src=self.pg1.remote_ip4) / |
| 5984 | UDP(sport=20000, dport=10000)) |
| 5985 | self.pg1.add_stream(p) |
| 5986 | self.pg_enable_capture(self.pg_interfaces) |
| 5987 | self.pg_start() |
| 5988 | capture = self.pg0.get_capture(1) |
| 5989 | capture = capture[0] |
| 5990 | self.assertFalse(capture.haslayer(IPv6)) |
| 5991 | self.assertEqual(capture[IP].src, self.pg1.remote_ip4) |
| 5992 | self.assertEqual(capture[IP].dst, self.pg0.remote_ip4) |
| 5993 | self.assertEqual(capture[UDP].sport, 20000) |
| 5994 | self.assertEqual(capture[UDP].dport, 10000) |
| 5995 | self.check_ip_checksum(capture) |
| 5996 | |
| 5997 | # ping DS-Lite B4 tunnel endpoint address |
| 5998 | p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / |
| 5999 | IPv6(src=self.pg1.remote_hosts[0].ip6, dst=b4_ip6) / |
| 6000 | ICMPv6EchoRequest()) |
| 6001 | self.pg1.add_stream(p) |
| 6002 | self.pg_enable_capture(self.pg_interfaces) |
| 6003 | self.pg_start() |
| 6004 | capture = self.pg1.get_capture(1) |
| 6005 | self.assertEqual(1, len(capture)) |
| 6006 | capture = capture[0] |
| 6007 | self.assertEqual(capture[IPv6].src, b4_ip6) |
| 6008 | self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6) |
| 6009 | self.assertTrue(capture.haslayer(ICMPv6EchoReply)) |
| 6010 | |
| 6011 | def tearDown(self): |
| 6012 | super(TestDSliteCE, self).tearDown() |
| 6013 | if not self.vpp_dead: |
| 6014 | self.logger.info( |
| 6015 | self.vapi.cli("show dslite aftr-tunnel-endpoint-address")) |
| 6016 | self.logger.info( |
| 6017 | self.vapi.cli("show dslite b4-tunnel-endpoint-address")) |
| 6018 | |
Matus Fabian | de88675 | 2016-12-07 03:38:19 -0800 | [diff] [blame] | 6019 | if __name__ == '__main__': |
| 6020 | unittest.main(testRunner=VppTestRunner) |