Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1 | #!/usr/bin/env python3 |
| 2 | """ Wg tests """ |
| 3 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 4 | import datetime |
| 5 | import base64 |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 6 | import os |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 7 | |
| 8 | from hashlib import blake2s |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 9 | from scapy.packet import Packet |
| 10 | from scapy.packet import Raw |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 11 | from scapy.layers.l2 import Ether, ARP |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 12 | from scapy.layers.inet import IP, UDP |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 13 | from scapy.layers.inet6 import IPv6 |
Alexander Chernavin | f2b6edb | 2023-03-29 16:09:37 +0000 | [diff] [blame] | 14 | from scapy.layers.vxlan import VXLAN |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 15 | from scapy.contrib.wireguard import ( |
| 16 | Wireguard, |
| 17 | WireguardResponse, |
| 18 | WireguardInitiation, |
| 19 | WireguardTransport, |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 20 | WireguardCookieReply, |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 21 | ) |
| 22 | from cryptography.hazmat.primitives.asymmetric.x25519 import ( |
| 23 | X25519PrivateKey, |
| 24 | X25519PublicKey, |
| 25 | ) |
| 26 | from cryptography.hazmat.primitives.serialization import ( |
| 27 | Encoding, |
| 28 | PrivateFormat, |
| 29 | PublicFormat, |
| 30 | NoEncryption, |
| 31 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 32 | from cryptography.hazmat.primitives.hashes import BLAKE2s, Hash |
| 33 | from cryptography.hazmat.primitives.hmac import HMAC |
| 34 | from cryptography.hazmat.backends import default_backend |
| 35 | from noise.connection import NoiseConnection, Keypair |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 36 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 37 | from Crypto.Cipher import ChaCha20_Poly1305 |
| 38 | from Crypto.Random import get_random_bytes |
| 39 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 40 | from vpp_ipip_tun_interface import VppIpIpTunInterface |
| 41 | from vpp_interface import VppInterface |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 42 | from vpp_pg_interface import is_ipv6_misc |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 43 | from vpp_ip_route import VppIpRoute, VppRoutePath |
Alexander Chernavin | f2b6edb | 2023-03-29 16:09:37 +0000 | [diff] [blame] | 44 | from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort |
| 45 | from vpp_vxlan_tunnel import VppVxlanTunnel |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 46 | from vpp_object import VppObject |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 47 | from vpp_papi import VppEnum |
Dave Wallace | 8a0a9d2 | 2022-10-04 22:02:49 -0400 | [diff] [blame] | 48 | from framework import is_distro_ubuntu2204, is_distro_debian11, tag_fixme_vpp_debug |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 49 | from framework import VppTestCase |
| 50 | from re import compile |
| 51 | import unittest |
| 52 | |
| 53 | """ TestWg is a subclass of VPPTestCase classes. |
| 54 | |
| 55 | Wg test. |
| 56 | |
| 57 | """ |
| 58 | |
| 59 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 60 | def private_key_bytes(k): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 61 | return k.private_bytes(Encoding.Raw, PrivateFormat.Raw, NoEncryption()) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 62 | |
| 63 | |
| 64 | def public_key_bytes(k): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 65 | return k.public_bytes(Encoding.Raw, PublicFormat.Raw) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 66 | |
| 67 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 68 | def get_field_bytes(pkt, name): |
| 69 | fld, val = pkt.getfield_and_val(name) |
| 70 | return fld.i2m(pkt, val) |
| 71 | |
| 72 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 73 | class VppWgInterface(VppInterface): |
| 74 | """ |
| 75 | VPP WireGuard interface |
| 76 | """ |
| 77 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 78 | def __init__(self, test, src, port): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 79 | super(VppWgInterface, self).__init__(test) |
| 80 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 81 | self.port = port |
| 82 | self.src = src |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 83 | self.private_key = X25519PrivateKey.generate() |
| 84 | self.public_key = self.private_key.public_key() |
| 85 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 86 | # cookie related params |
| 87 | self.cookie_key = blake2s(b"cookie--" + self.public_key_bytes()).digest() |
| 88 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 89 | def public_key_bytes(self): |
| 90 | return public_key_bytes(self.public_key) |
| 91 | |
| 92 | def private_key_bytes(self): |
| 93 | return private_key_bytes(self.private_key) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 94 | |
| 95 | def add_vpp_config(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 96 | r = self.test.vapi.wireguard_interface_create( |
| 97 | interface={ |
| 98 | "user_instance": 0xFFFFFFFF, |
| 99 | "port": self.port, |
| 100 | "src_ip": self.src, |
| 101 | "private_key": private_key_bytes(self.private_key), |
| 102 | "generate_key": False, |
| 103 | } |
| 104 | ) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 105 | self.set_sw_if_index(r.sw_if_index) |
| 106 | self.test.registry.register(self, self.test.logger) |
| 107 | return self |
| 108 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 109 | def remove_vpp_config(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 110 | self.test.vapi.wireguard_interface_delete(sw_if_index=self._sw_if_index) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 111 | |
| 112 | def query_vpp_config(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 113 | ts = self.test.vapi.wireguard_interface_dump(sw_if_index=0xFFFFFFFF) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 114 | for t in ts: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 115 | if ( |
| 116 | t.interface.sw_if_index == self._sw_if_index |
| 117 | and str(t.interface.src_ip) == self.src |
| 118 | and t.interface.port == self.port |
| 119 | and t.interface.private_key == private_key_bytes(self.private_key) |
| 120 | ): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 121 | return True |
| 122 | return False |
| 123 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 124 | def want_events(self, peer_index=0xFFFFFFFF): |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 125 | self.test.vapi.want_wireguard_peer_events( |
| 126 | enable_disable=1, |
| 127 | pid=os.getpid(), |
| 128 | sw_if_index=self._sw_if_index, |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 129 | peer_index=peer_index, |
| 130 | ) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 131 | |
| 132 | def wait_events(self, expect, peers, timeout=5): |
| 133 | for i in range(len(peers)): |
| 134 | rv = self.test.vapi.wait_for_event(timeout, "wireguard_peer_event") |
| 135 | self.test.assertEqual(rv.peer_index, peers[i]) |
| 136 | self.test.assertEqual(rv.flags, expect) |
| 137 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 138 | def __str__(self): |
| 139 | return self.object_id() |
| 140 | |
| 141 | def object_id(self): |
| 142 | return "wireguard-%d" % self._sw_if_index |
| 143 | |
| 144 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 145 | NOISE_HANDSHAKE_NAME = b"Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s" |
| 146 | NOISE_IDENTIFIER_NAME = b"WireGuard v1 zx2c4 Jason@zx2c4.com" |
| 147 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 148 | HANDSHAKE_COUNTING_INTERVAL = 0.5 |
| 149 | UNDER_LOAD_INTERVAL = 1.0 |
| 150 | HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD = 40 |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 151 | HANDSHAKE_NUM_BEFORE_RATELIMITING = 5 |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 152 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 153 | HANDSHAKE_JITTER = 0.5 |
| 154 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 155 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 156 | class VppWgPeer(VppObject): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 157 | def __init__(self, test, itf, endpoint, port, allowed_ips, persistent_keepalive=15): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 158 | self._test = test |
| 159 | self.itf = itf |
| 160 | self.endpoint = endpoint |
| 161 | self.port = port |
| 162 | self.allowed_ips = allowed_ips |
| 163 | self.persistent_keepalive = persistent_keepalive |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 164 | |
| 165 | # remote peer's public |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 166 | self.private_key = X25519PrivateKey.generate() |
| 167 | self.public_key = self.private_key.public_key() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 168 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 169 | # cookie related params |
| 170 | self.cookie_key = blake2s(b"cookie--" + self.public_key_bytes()).digest() |
| 171 | self.last_sent_cookie = None |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 172 | self.last_mac1 = None |
| 173 | self.last_received_cookie = None |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 174 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 175 | self.noise = NoiseConnection.from_name(NOISE_HANDSHAKE_NAME) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 176 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 177 | def change_endpoint(self, endpoint, port): |
| 178 | self.endpoint = endpoint |
| 179 | self.port = port |
| 180 | |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 181 | def add_vpp_config(self): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 182 | rv = self._test.vapi.wireguard_peer_add( |
| 183 | peer={ |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 184 | "public_key": self.public_key_bytes(), |
| 185 | "port": self.port, |
| 186 | "endpoint": self.endpoint, |
| 187 | "n_allowed_ips": len(self.allowed_ips), |
| 188 | "allowed_ips": self.allowed_ips, |
| 189 | "sw_if_index": self.itf.sw_if_index, |
| 190 | "persistent_keepalive": self.persistent_keepalive, |
| 191 | } |
| 192 | ) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 193 | self.index = rv.peer_index |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 194 | self.receiver_index = self.index + 1 |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 195 | self._test.registry.register(self, self._test.logger) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 196 | return self |
| 197 | |
| 198 | def remove_vpp_config(self): |
| 199 | self._test.vapi.wireguard_peer_remove(peer_index=self.index) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 200 | |
| 201 | def object_id(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 202 | return "wireguard-peer-%s" % self.index |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 203 | |
| 204 | def public_key_bytes(self): |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 205 | return public_key_bytes(self.public_key) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 206 | |
| 207 | def query_vpp_config(self): |
| 208 | peers = self._test.vapi.wireguard_peers_dump() |
| 209 | |
| 210 | for p in peers: |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 211 | # "::" endpoint will be returned as "0.0.0.0" in peer's details |
| 212 | endpoint = "0.0.0.0" if self.endpoint == "::" else self.endpoint |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 213 | if ( |
| 214 | p.peer.public_key == self.public_key_bytes() |
| 215 | and p.peer.port == self.port |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 216 | and str(p.peer.endpoint) == endpoint |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 217 | and p.peer.sw_if_index == self.itf.sw_if_index |
| 218 | and len(self.allowed_ips) == p.peer.n_allowed_ips |
| 219 | ): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 220 | self.allowed_ips.sort() |
| 221 | p.peer.allowed_ips.sort() |
| 222 | |
Dave Wallace | 7b8b465 | 2023-08-15 19:05:26 -0400 | [diff] [blame^] | 223 | for a1, a2 in zip(self.allowed_ips, p.peer.allowed_ips): |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 224 | if str(a1) != str(a2): |
| 225 | return False |
| 226 | return True |
| 227 | return False |
| 228 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 229 | def mk_tunnel_header(self, tx_itf, is_ip6=False): |
| 230 | if is_ip6 is False: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 231 | return ( |
| 232 | Ether(dst=tx_itf.local_mac, src=tx_itf.remote_mac) |
| 233 | / IP(src=self.endpoint, dst=self.itf.src) |
| 234 | / UDP(sport=self.port, dport=self.itf.port) |
| 235 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 236 | else: |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 237 | return ( |
| 238 | Ether(dst=tx_itf.local_mac, src=tx_itf.remote_mac) |
| 239 | / IPv6(src=self.endpoint, dst=self.itf.src) |
| 240 | / UDP(sport=self.port, dport=self.itf.port) |
| 241 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 242 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 243 | def noise_reset(self): |
| 244 | self.noise = NoiseConnection.from_name(NOISE_HANDSHAKE_NAME) |
| 245 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 246 | def noise_init(self, public_key=None): |
| 247 | self.noise.set_prologue(NOISE_IDENTIFIER_NAME) |
| 248 | self.noise.set_psks(psk=bytes(bytearray(32))) |
| 249 | |
| 250 | if not public_key: |
| 251 | public_key = self.itf.public_key |
| 252 | |
| 253 | # local/this private |
| 254 | self.noise.set_keypair_from_private_bytes( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 255 | Keypair.STATIC, private_key_bytes(self.private_key) |
| 256 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 257 | # remote's public |
| 258 | self.noise.set_keypair_from_public_bytes( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 259 | Keypair.REMOTE_STATIC, public_key_bytes(public_key) |
| 260 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 261 | |
| 262 | self.noise.start_handshake() |
| 263 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 264 | def mk_cookie(self, p, tx_itf, is_resp=False, is_ip6=False): |
| 265 | self.verify_header(p, is_ip6) |
| 266 | |
| 267 | wg_pkt = Wireguard(p[Raw]) |
| 268 | |
| 269 | if is_resp: |
| 270 | self._test.assertEqual(wg_pkt[Wireguard].message_type, 2) |
| 271 | self._test.assertEqual(wg_pkt[Wireguard].reserved_zero, 0) |
| 272 | self._test.assertEqual(wg_pkt[WireguardResponse].mac2, bytes([0] * 16)) |
| 273 | else: |
| 274 | self._test.assertEqual(wg_pkt[Wireguard].message_type, 1) |
| 275 | self._test.assertEqual(wg_pkt[Wireguard].reserved_zero, 0) |
| 276 | self._test.assertEqual(wg_pkt[WireguardInitiation].mac2, bytes([0] * 16)) |
| 277 | |
| 278 | # collect info from wg packet (initiation or response) |
| 279 | src = get_field_bytes(p[IPv6 if is_ip6 else IP], "src") |
| 280 | sport = p[UDP].sport.to_bytes(2, byteorder="big") |
| 281 | if is_resp: |
| 282 | mac1 = wg_pkt[WireguardResponse].mac1 |
| 283 | sender_index = wg_pkt[WireguardResponse].sender_index |
| 284 | else: |
| 285 | mac1 = wg_pkt[WireguardInitiation].mac1 |
| 286 | sender_index = wg_pkt[WireguardInitiation].sender_index |
| 287 | |
| 288 | # make cookie reply |
| 289 | cookie_reply = Wireguard() / WireguardCookieReply() |
| 290 | cookie_reply[Wireguard].message_type = 3 |
| 291 | cookie_reply[Wireguard].reserved_zero = 0 |
| 292 | cookie_reply[WireguardCookieReply].receiver_index = sender_index |
| 293 | nonce = get_random_bytes(24) |
| 294 | cookie_reply[WireguardCookieReply].nonce = nonce |
| 295 | |
| 296 | # generate cookie data |
| 297 | changing_secret = get_random_bytes(32) |
| 298 | self.last_sent_cookie = blake2s( |
| 299 | src + sport, digest_size=16, key=changing_secret |
| 300 | ).digest() |
| 301 | |
| 302 | # encrypt cookie data |
| 303 | cipher = ChaCha20_Poly1305.new(key=self.cookie_key, nonce=nonce) |
| 304 | cipher.update(mac1) |
| 305 | ciphertext, tag = cipher.encrypt_and_digest(self.last_sent_cookie) |
| 306 | cookie_reply[WireguardCookieReply].encrypted_cookie = ciphertext + tag |
| 307 | |
| 308 | # prepare cookie reply to be sent |
| 309 | cookie_reply = self.mk_tunnel_header(tx_itf, is_ip6) / cookie_reply |
| 310 | |
| 311 | return cookie_reply |
| 312 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 313 | def consume_cookie(self, p, is_ip6=False): |
| 314 | self.verify_header(p, is_ip6) |
| 315 | |
| 316 | cookie_reply = Wireguard(p[Raw]) |
| 317 | |
| 318 | self._test.assertEqual(cookie_reply[Wireguard].message_type, 3) |
| 319 | self._test.assertEqual(cookie_reply[Wireguard].reserved_zero, 0) |
| 320 | self._test.assertEqual( |
| 321 | cookie_reply[WireguardCookieReply].receiver_index, self.receiver_index |
| 322 | ) |
| 323 | |
| 324 | # collect info from cookie reply |
| 325 | nonce = cookie_reply[WireguardCookieReply].nonce |
| 326 | encrypted_cookie = cookie_reply[WireguardCookieReply].encrypted_cookie |
| 327 | ciphertext, tag = encrypted_cookie[:16], encrypted_cookie[16:] |
| 328 | |
| 329 | # decrypt cookie data |
| 330 | cipher = ChaCha20_Poly1305.new(key=self.itf.cookie_key, nonce=nonce) |
| 331 | cipher.update(self.last_mac1) |
| 332 | self.last_received_cookie = cipher.decrypt_and_verify(ciphertext, tag) |
| 333 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 334 | def mk_handshake(self, tx_itf, is_ip6=False, public_key=None): |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 335 | self.noise.set_as_initiator() |
| 336 | self.noise_init(public_key) |
| 337 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 338 | p = Wireguard() / WireguardInitiation() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 339 | |
| 340 | p[Wireguard].message_type = 1 |
| 341 | p[Wireguard].reserved_zero = 0 |
| 342 | p[WireguardInitiation].sender_index = self.receiver_index |
| 343 | |
| 344 | # some random data for the message |
| 345 | # lifted from the noise protocol's wireguard example |
| 346 | now = datetime.datetime.now() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 347 | tai = struct.pack( |
| 348 | "!qi", |
| 349 | 4611686018427387914 + int(now.timestamp()), |
| 350 | int(now.microsecond * 1e3), |
| 351 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 352 | b = self.noise.write_message(payload=tai) |
| 353 | |
| 354 | # load noise into init message |
| 355 | p[WireguardInitiation].unencrypted_ephemeral = b[0:32] |
| 356 | p[WireguardInitiation].encrypted_static = b[32:80] |
| 357 | p[WireguardInitiation].encrypted_timestamp = b[80:108] |
| 358 | |
| 359 | # generate the mac1 hash |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 360 | mac_key = blake2s(b"mac1----" + self.itf.public_key_bytes()).digest() |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 361 | mac1 = blake2s(bytes(p)[0:116], digest_size=16, key=mac_key).digest() |
| 362 | p[WireguardInitiation].mac1 = mac1 |
| 363 | self.last_mac1 = mac1 |
| 364 | |
| 365 | # generate the mac2 hash |
| 366 | if self.last_received_cookie: |
| 367 | mac2 = blake2s( |
| 368 | bytes(p)[0:132], digest_size=16, key=self.last_received_cookie |
| 369 | ).digest() |
| 370 | p[WireguardInitiation].mac2 = mac2 |
| 371 | self.last_received_cookie = None |
| 372 | else: |
| 373 | p[WireguardInitiation].mac2 = bytearray(16) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 374 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 375 | p = self.mk_tunnel_header(tx_itf, is_ip6) / p |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 376 | |
| 377 | return p |
| 378 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 379 | def verify_header(self, p, is_ip6=False): |
| 380 | if is_ip6 is False: |
| 381 | self._test.assertEqual(p[IP].src, self.itf.src) |
| 382 | self._test.assertEqual(p[IP].dst, self.endpoint) |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 383 | self._test.assert_packet_checksums_valid(p) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 384 | else: |
| 385 | self._test.assertEqual(p[IPv6].src, self.itf.src) |
| 386 | self._test.assertEqual(p[IPv6].dst, self.endpoint) |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 387 | self._test.assert_packet_checksums_valid(p, False) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 388 | self._test.assertEqual(p[UDP].sport, self.itf.port) |
| 389 | self._test.assertEqual(p[UDP].dport, self.port) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 390 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 391 | def consume_init(self, p, tx_itf, is_ip6=False, is_mac2=False): |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 392 | self.noise.set_as_responder() |
| 393 | self.noise_init(self.itf.public_key) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 394 | self.verify_header(p, is_ip6) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 395 | |
| 396 | init = Wireguard(p[Raw]) |
| 397 | |
| 398 | self._test.assertEqual(init[Wireguard].message_type, 1) |
| 399 | self._test.assertEqual(init[Wireguard].reserved_zero, 0) |
| 400 | |
| 401 | self.sender = init[WireguardInitiation].sender_index |
| 402 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 403 | # validate the mac1 hash |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 404 | mac_key = blake2s(b"mac1----" + public_key_bytes(self.public_key)).digest() |
| 405 | mac1 = blake2s(bytes(init)[0:-32], digest_size=16, key=mac_key).digest() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 406 | self._test.assertEqual(init[WireguardInitiation].mac1, mac1) |
| 407 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 408 | # validate the mac2 hash |
| 409 | if is_mac2: |
| 410 | self._test.assertNotEqual(init[WireguardInitiation].mac2, bytes([0] * 16)) |
| 411 | self._test.assertNotEqual(self.last_sent_cookie, None) |
| 412 | mac2 = blake2s( |
| 413 | bytes(init)[0:-16], digest_size=16, key=self.last_sent_cookie |
| 414 | ).digest() |
| 415 | self._test.assertEqual(init[WireguardInitiation].mac2, mac2) |
| 416 | self.last_sent_cookie = None |
| 417 | else: |
| 418 | self._test.assertEqual(init[WireguardInitiation].mac2, bytes([0] * 16)) |
| 419 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 420 | # this passes only unencrypted_ephemeral, encrypted_static, |
| 421 | # encrypted_timestamp fields of the init |
| 422 | payload = self.noise.read_message(bytes(init)[8:-32]) |
| 423 | |
| 424 | # build the response |
| 425 | b = self.noise.write_message() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 426 | mac_key = blake2s(b"mac1----" + public_key_bytes(self.itf.public_key)).digest() |
| 427 | resp = Wireguard(message_type=2, reserved_zero=0) / WireguardResponse( |
| 428 | sender_index=self.receiver_index, |
| 429 | receiver_index=self.sender, |
| 430 | unencrypted_ephemeral=b[0:32], |
| 431 | encrypted_nothing=b[32:], |
| 432 | ) |
| 433 | mac1 = blake2s(bytes(resp)[:-32], digest_size=16, key=mac_key).digest() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 434 | resp[WireguardResponse].mac1 = mac1 |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 435 | self.last_mac1 = mac1 |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 436 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 437 | resp = self.mk_tunnel_header(tx_itf, is_ip6) / resp |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 438 | self._test.assertTrue(self.noise.handshake_finished) |
| 439 | |
| 440 | return resp |
| 441 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 442 | def consume_response(self, p, is_ip6=False): |
| 443 | self.verify_header(p, is_ip6) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 444 | |
| 445 | resp = Wireguard(p[Raw]) |
| 446 | |
| 447 | self._test.assertEqual(resp[Wireguard].message_type, 2) |
| 448 | self._test.assertEqual(resp[Wireguard].reserved_zero, 0) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 449 | self._test.assertEqual( |
| 450 | resp[WireguardResponse].receiver_index, self.receiver_index |
| 451 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 452 | |
| 453 | self.sender = resp[Wireguard].sender_index |
| 454 | |
| 455 | payload = self.noise.read_message(bytes(resp)[12:60]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 456 | self._test.assertEqual(payload, b"") |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 457 | self._test.assertTrue(self.noise.handshake_finished) |
| 458 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 459 | def decrypt_transport(self, p, is_ip6=False): |
| 460 | self.verify_header(p, is_ip6) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 461 | |
| 462 | p = Wireguard(p[Raw]) |
| 463 | self._test.assertEqual(p[Wireguard].message_type, 4) |
| 464 | self._test.assertEqual(p[Wireguard].reserved_zero, 0) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 465 | self._test.assertEqual( |
| 466 | p[WireguardTransport].receiver_index, self.receiver_index |
| 467 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 468 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 469 | d = self.noise.decrypt(p[WireguardTransport].encrypted_encapsulated_packet) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 470 | return d |
| 471 | |
| 472 | def encrypt_transport(self, p): |
| 473 | return self.noise.encrypt(bytes(p)) |
| 474 | |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 475 | def validate_encapped(self, rxs, tx, is_tunnel_ip6=False, is_transport_ip6=False): |
Alexander Chernavin | f2b6edb | 2023-03-29 16:09:37 +0000 | [diff] [blame] | 476 | ret_rxs = [] |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 477 | for rx in rxs: |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 478 | rx = self.decrypt_transport(rx, is_tunnel_ip6) |
| 479 | if is_transport_ip6 is False: |
| 480 | rx = IP(rx) |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 481 | # check the original packet is present |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 482 | self._test.assertEqual(rx[IP].dst, tx[IP].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 483 | self._test.assertEqual(rx[IP].ttl, tx[IP].ttl - 1) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 484 | else: |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 485 | rx = IPv6(rx) |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 486 | # check the original packet is present |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 487 | self._test.assertEqual(rx[IPv6].dst, tx[IPv6].dst) |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 488 | self._test.assertEqual(rx[IPv6].hlim, tx[IPv6].hlim - 1) |
Alexander Chernavin | f2b6edb | 2023-03-29 16:09:37 +0000 | [diff] [blame] | 489 | ret_rxs.append(rx) |
| 490 | return ret_rxs |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 491 | |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 492 | def want_events(self): |
| 493 | self._test.vapi.want_wireguard_peer_events( |
| 494 | enable_disable=1, |
| 495 | pid=os.getpid(), |
| 496 | peer_index=self.index, |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 497 | sw_if_index=self.itf.sw_if_index, |
| 498 | ) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 499 | |
| 500 | def wait_event(self, expect, timeout=5): |
| 501 | rv = self._test.vapi.wait_for_event(timeout, "wireguard_peer_event") |
| 502 | self._test.assertEqual(rv.flags, expect) |
| 503 | self._test.assertEqual(rv.peer_index, self.index) |
| 504 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 505 | |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 506 | def is_handshake_init(p): |
| 507 | wg_p = Wireguard(p[Raw]) |
| 508 | |
| 509 | return wg_p[Wireguard].message_type == 1 |
| 510 | |
| 511 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 512 | class TestWg(VppTestCase): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 513 | """Wireguard Test Case""" |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 514 | |
| 515 | error_str = compile(r"Error") |
| 516 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 517 | wg4_output_node_name = "/err/wg4-output-tun/" |
| 518 | wg4_input_node_name = "/err/wg4-input/" |
| 519 | wg6_output_node_name = "/err/wg6-output-tun/" |
| 520 | wg6_input_node_name = "/err/wg6-input/" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 521 | kp4_error = wg4_output_node_name + "Keypair error" |
| 522 | mac4_error = wg4_input_node_name + "Invalid MAC handshake" |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 523 | peer4_in_err = wg4_input_node_name + "Peer error" |
| 524 | peer4_out_err = wg4_output_node_name + "Peer error" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 525 | kp6_error = wg6_output_node_name + "Keypair error" |
| 526 | mac6_error = wg6_input_node_name + "Invalid MAC handshake" |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 527 | peer6_in_err = wg6_input_node_name + "Peer error" |
| 528 | peer6_out_err = wg6_output_node_name + "Peer error" |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 529 | cookie_dec4_err = wg4_input_node_name + "Failed during Cookie decryption" |
| 530 | cookie_dec6_err = wg6_input_node_name + "Failed during Cookie decryption" |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 531 | ratelimited4_err = wg4_input_node_name + "Handshake ratelimited" |
| 532 | ratelimited6_err = wg6_input_node_name + "Handshake ratelimited" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 533 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 534 | @classmethod |
| 535 | def setUpClass(cls): |
| 536 | super(TestWg, cls).setUpClass() |
Dave Wallace | 670724c | 2022-09-20 21:52:18 -0400 | [diff] [blame] | 537 | if (is_distro_ubuntu2204 == True or is_distro_debian11 == True) and not hasattr( |
| 538 | cls, "vpp" |
| 539 | ): |
| 540 | return |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 541 | try: |
| 542 | cls.create_pg_interfaces(range(3)) |
| 543 | for i in cls.pg_interfaces: |
| 544 | i.admin_up() |
| 545 | i.config_ip4() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 546 | i.config_ip6() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 547 | i.resolve_arp() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 548 | i.resolve_ndp() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 549 | |
| 550 | except Exception: |
| 551 | super(TestWg, cls).tearDownClass() |
| 552 | raise |
| 553 | |
| 554 | @classmethod |
| 555 | def tearDownClass(cls): |
| 556 | super(TestWg, cls).tearDownClass() |
| 557 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 558 | def setUp(self): |
| 559 | super(VppTestCase, self).setUp() |
| 560 | self.base_kp4_err = self.statistics.get_err_counter(self.kp4_error) |
| 561 | self.base_mac4_err = self.statistics.get_err_counter(self.mac4_error) |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 562 | self.base_peer4_in_err = self.statistics.get_err_counter(self.peer4_in_err) |
| 563 | self.base_peer4_out_err = self.statistics.get_err_counter(self.peer4_out_err) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 564 | self.base_kp6_err = self.statistics.get_err_counter(self.kp6_error) |
| 565 | self.base_mac6_err = self.statistics.get_err_counter(self.mac6_error) |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 566 | self.base_peer6_in_err = self.statistics.get_err_counter(self.peer6_in_err) |
| 567 | self.base_peer6_out_err = self.statistics.get_err_counter(self.peer6_out_err) |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 568 | self.base_cookie_dec4_err = self.statistics.get_err_counter( |
| 569 | self.cookie_dec4_err |
| 570 | ) |
| 571 | self.base_cookie_dec6_err = self.statistics.get_err_counter( |
| 572 | self.cookie_dec6_err |
| 573 | ) |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 574 | self.base_ratelimited4_err = self.statistics.get_err_counter( |
| 575 | self.ratelimited4_err |
| 576 | ) |
| 577 | self.base_ratelimited6_err = self.statistics.get_err_counter( |
| 578 | self.ratelimited6_err |
| 579 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 580 | |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 581 | def send_and_assert_no_replies_ignoring_init( |
| 582 | self, intf, pkts, remark="", timeout=None |
| 583 | ): |
| 584 | self.pg_send(intf, pkts) |
| 585 | |
| 586 | def _filter_out_fn(p): |
| 587 | return is_ipv6_misc(p) or is_handshake_init(p) |
| 588 | |
| 589 | try: |
| 590 | if not timeout: |
| 591 | timeout = 1 |
| 592 | for i in self.pg_interfaces: |
| 593 | i.assert_nothing_captured( |
| 594 | timeout=timeout, remark=remark, filter_out_fn=_filter_out_fn |
| 595 | ) |
| 596 | timeout = 0.1 |
| 597 | finally: |
| 598 | pass |
| 599 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 600 | def test_wg_interface(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 601 | """Simple interface creation""" |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 602 | port = 12312 |
| 603 | |
| 604 | # Create interface |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 605 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 606 | |
| 607 | self.logger.info(self.vapi.cli("sh int")) |
| 608 | |
| 609 | # delete interface |
| 610 | wg0.remove_vpp_config() |
| 611 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 612 | def test_handshake_hash(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 613 | """test hashing an init message""" |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 614 | # a init packet generated by linux given the key below |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 615 | h = ( |
| 616 | "0100000098b9032b" |
| 617 | "55cc4b39e73c3d24" |
| 618 | "a2a1ab884b524a81" |
| 619 | "1808bb86640fb70d" |
| 620 | "e93154fec1879125" |
| 621 | "ab012624a27f0b75" |
| 622 | "c0a2582f438ddb5f" |
| 623 | "8e768af40b4ab444" |
| 624 | "02f9ff473e1b797e" |
| 625 | "80d39d93c5480c82" |
| 626 | "a3d4510f70396976" |
| 627 | "586fb67300a5167b" |
| 628 | "ae6ca3ff3dfd00eb" |
| 629 | "59be198810f5aa03" |
| 630 | "6abc243d2155ee4f" |
| 631 | "2336483900aef801" |
| 632 | "08752cd700000000" |
| 633 | "0000000000000000" |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 634 | "00000000" |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 635 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 636 | |
| 637 | b = bytearray.fromhex(h) |
| 638 | tgt = Wireguard(b) |
| 639 | |
| 640 | pubb = base64.b64decode("aRuHFTTxICIQNefp05oKWlJv3zgKxb8+WW7JJMh0jyM=") |
| 641 | pub = X25519PublicKey.from_public_bytes(pubb) |
| 642 | |
| 643 | self.assertEqual(pubb, public_key_bytes(pub)) |
| 644 | |
| 645 | # strip the macs and build a new packet |
| 646 | init = b[0:-32] |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 647 | mac_key = blake2s(b"mac1----" + public_key_bytes(pub)).digest() |
| 648 | init += blake2s(init, digest_size=16, key=mac_key).digest() |
| 649 | init += b"\x00" * 16 |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 650 | |
| 651 | act = Wireguard(init) |
| 652 | |
| 653 | self.assertEqual(tgt, act) |
| 654 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 655 | def _test_wg_send_cookie_tmpl(self, is_resp, is_ip6): |
| 656 | port = 12323 |
| 657 | |
| 658 | # create wg interface |
| 659 | if is_ip6: |
| 660 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 661 | wg0.admin_up() |
| 662 | wg0.config_ip6() |
| 663 | else: |
| 664 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 665 | wg0.admin_up() |
| 666 | wg0.config_ip4() |
| 667 | |
| 668 | self.pg_enable_capture(self.pg_interfaces) |
| 669 | self.pg_start() |
| 670 | |
| 671 | # create a peer |
| 672 | if is_ip6: |
| 673 | peer_1 = VppWgPeer( |
| 674 | self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"] |
| 675 | ).add_vpp_config() |
| 676 | else: |
| 677 | peer_1 = VppWgPeer( |
| 678 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 679 | ).add_vpp_config() |
| 680 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 681 | |
| 682 | if is_resp: |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 683 | # skip the first automatic handshake |
| 684 | self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER) |
| 685 | |
Alexander Chernavin | 44ec846 | 2022-07-20 10:48:56 +0000 | [diff] [blame] | 686 | # prepare and send a handshake initiation |
| 687 | # expect the peer to send a handshake response |
| 688 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 689 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 690 | else: |
| 691 | # wait for the peer to send a handshake initiation |
| 692 | rxs = self.pg1.get_capture(1, timeout=2) |
| 693 | |
| 694 | # prepare and send a wrong cookie reply |
| 695 | # expect no replies and the cookie error incremented |
| 696 | cookie = peer_1.mk_cookie(rxs[0], self.pg1, is_resp=is_resp, is_ip6=is_ip6) |
| 697 | cookie.nonce = b"1234567890" |
| 698 | self.send_and_assert_no_replies(self.pg1, [cookie], timeout=0.1) |
| 699 | if is_ip6: |
| 700 | self.assertEqual( |
| 701 | self.base_cookie_dec6_err + 1, |
| 702 | self.statistics.get_err_counter(self.cookie_dec6_err), |
| 703 | ) |
| 704 | else: |
| 705 | self.assertEqual( |
| 706 | self.base_cookie_dec4_err + 1, |
| 707 | self.statistics.get_err_counter(self.cookie_dec4_err), |
| 708 | ) |
| 709 | |
| 710 | # prepare and send a correct cookie reply |
| 711 | cookie = peer_1.mk_cookie(rxs[0], self.pg1, is_resp=is_resp, is_ip6=is_ip6) |
| 712 | self.pg_send(self.pg1, [cookie]) |
| 713 | |
| 714 | # wait for the peer to send a handshake initiation with mac2 set |
| 715 | rxs = self.pg1.get_capture(1, timeout=6) |
| 716 | |
| 717 | # verify the initiation and its mac2 |
| 718 | peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6, is_mac2=True) |
| 719 | |
| 720 | # remove configs |
| 721 | peer_1.remove_vpp_config() |
| 722 | wg0.remove_vpp_config() |
| 723 | |
| 724 | def test_wg_send_cookie_on_init_v4(self): |
| 725 | """Send cookie on handshake initiation (v4)""" |
| 726 | self._test_wg_send_cookie_tmpl(is_resp=False, is_ip6=False) |
| 727 | |
| 728 | def test_wg_send_cookie_on_init_v6(self): |
| 729 | """Send cookie on handshake initiation (v6)""" |
| 730 | self._test_wg_send_cookie_tmpl(is_resp=False, is_ip6=True) |
| 731 | |
| 732 | def test_wg_send_cookie_on_resp_v4(self): |
| 733 | """Send cookie on handshake response (v4)""" |
| 734 | self._test_wg_send_cookie_tmpl(is_resp=True, is_ip6=False) |
| 735 | |
| 736 | def test_wg_send_cookie_on_resp_v6(self): |
| 737 | """Send cookie on handshake response (v6)""" |
| 738 | self._test_wg_send_cookie_tmpl(is_resp=True, is_ip6=True) |
| 739 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 740 | def _test_wg_receive_cookie_tmpl(self, is_resp, is_ip6): |
| 741 | port = 12323 |
| 742 | |
| 743 | # create wg interface |
| 744 | if is_ip6: |
| 745 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 746 | wg0.admin_up() |
| 747 | wg0.config_ip6() |
| 748 | else: |
| 749 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 750 | wg0.admin_up() |
| 751 | wg0.config_ip4() |
| 752 | |
| 753 | self.pg_enable_capture(self.pg_interfaces) |
| 754 | self.pg_start() |
| 755 | |
| 756 | # create a peer |
| 757 | if is_ip6: |
| 758 | peer_1 = VppWgPeer( |
| 759 | self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"] |
| 760 | ).add_vpp_config() |
| 761 | else: |
| 762 | peer_1 = VppWgPeer( |
| 763 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 764 | ).add_vpp_config() |
| 765 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 766 | |
| 767 | if is_resp: |
| 768 | # wait for the peer to send a handshake initiation |
| 769 | rxs = self.pg1.get_capture(1, timeout=2) |
| 770 | # prepare and send a bunch of handshake responses |
| 771 | # expect to switch to under load state |
| 772 | resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6) |
| 773 | txs = [resp] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD |
| 774 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 775 | # reset noise to be able to turn into initiator later |
| 776 | peer_1.noise_reset() |
| 777 | else: |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 778 | # skip the first automatic handshake |
| 779 | self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER) |
| 780 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 781 | # prepare and send a bunch of handshake initiations |
| 782 | # expect to switch to under load state |
| 783 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 784 | txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD |
| 785 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 786 | |
| 787 | # expect the peer to send a cookie reply |
| 788 | peer_1.consume_cookie(rxs[-1], is_ip6=is_ip6) |
| 789 | |
| 790 | # prepare and send a handshake initiation with wrong mac2 |
| 791 | # expect a cookie reply |
| 792 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 793 | init.mac2 = b"1234567890" |
| 794 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 795 | peer_1.consume_cookie(rxs[0], is_ip6=is_ip6) |
| 796 | |
| 797 | # prepare and send a handshake initiation with correct mac2 |
| 798 | # expect a handshake response |
| 799 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 800 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 801 | |
| 802 | # verify the response |
| 803 | peer_1.consume_response(rxs[0], is_ip6=is_ip6) |
| 804 | |
| 805 | # clear up under load state |
| 806 | self.sleep(UNDER_LOAD_INTERVAL) |
| 807 | |
| 808 | # remove configs |
| 809 | peer_1.remove_vpp_config() |
| 810 | wg0.remove_vpp_config() |
| 811 | |
| 812 | def test_wg_receive_cookie_on_init_v4(self): |
| 813 | """Receive cookie on handshake initiation (v4)""" |
| 814 | self._test_wg_receive_cookie_tmpl(is_resp=False, is_ip6=False) |
| 815 | |
| 816 | def test_wg_receive_cookie_on_init_v6(self): |
| 817 | """Receive cookie on handshake initiation (v6)""" |
| 818 | self._test_wg_receive_cookie_tmpl(is_resp=False, is_ip6=True) |
| 819 | |
| 820 | def test_wg_receive_cookie_on_resp_v4(self): |
| 821 | """Receive cookie on handshake response (v4)""" |
| 822 | self._test_wg_receive_cookie_tmpl(is_resp=True, is_ip6=False) |
| 823 | |
| 824 | def test_wg_receive_cookie_on_resp_v6(self): |
| 825 | """Receive cookie on handshake response (v6)""" |
| 826 | self._test_wg_receive_cookie_tmpl(is_resp=True, is_ip6=True) |
| 827 | |
| 828 | def test_wg_under_load_interval(self): |
| 829 | """Under load interval""" |
| 830 | port = 12323 |
| 831 | |
| 832 | # create wg interface |
| 833 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 834 | wg0.admin_up() |
| 835 | wg0.config_ip4() |
| 836 | |
| 837 | self.pg_enable_capture(self.pg_interfaces) |
| 838 | self.pg_start() |
| 839 | |
| 840 | # create a peer |
| 841 | peer_1 = VppWgPeer( |
| 842 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 843 | ).add_vpp_config() |
| 844 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 845 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 846 | # skip the first automatic handshake |
| 847 | self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER) |
| 848 | |
Alexander Chernavin | ce91af8 | 2022-07-20 12:43:42 +0000 | [diff] [blame] | 849 | # prepare and send a bunch of handshake initiations |
| 850 | # expect to switch to under load state |
| 851 | init = peer_1.mk_handshake(self.pg1) |
| 852 | txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD |
| 853 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 854 | |
| 855 | # expect the peer to send a cookie reply |
| 856 | peer_1.consume_cookie(rxs[-1]) |
| 857 | |
| 858 | # sleep till the next counting interval |
| 859 | # expect under load state is still active |
| 860 | self.sleep(HANDSHAKE_COUNTING_INTERVAL) |
| 861 | |
| 862 | # prepare and send a handshake initiation with wrong mac2 |
| 863 | # expect a cookie reply |
| 864 | init = peer_1.mk_handshake(self.pg1) |
| 865 | init.mac2 = b"1234567890" |
| 866 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 867 | peer_1.consume_cookie(rxs[0]) |
| 868 | |
| 869 | # sleep till the end of being under load |
| 870 | # expect under load state is over |
| 871 | self.sleep(UNDER_LOAD_INTERVAL - HANDSHAKE_COUNTING_INTERVAL) |
| 872 | |
| 873 | # prepare and send a handshake initiation with wrong mac2 |
| 874 | # expect a handshake response |
| 875 | init = peer_1.mk_handshake(self.pg1) |
| 876 | init.mac2 = b"1234567890" |
| 877 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 878 | |
| 879 | # verify the response |
| 880 | peer_1.consume_response(rxs[0]) |
| 881 | |
| 882 | # remove configs |
| 883 | peer_1.remove_vpp_config() |
| 884 | wg0.remove_vpp_config() |
| 885 | |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 886 | def _test_wg_handshake_ratelimiting_tmpl(self, is_ip6): |
| 887 | port = 12323 |
| 888 | |
| 889 | # create wg interface |
| 890 | if is_ip6: |
| 891 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 892 | wg0.admin_up() |
| 893 | wg0.config_ip6() |
| 894 | else: |
| 895 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 896 | wg0.admin_up() |
| 897 | wg0.config_ip4() |
| 898 | |
| 899 | self.pg_enable_capture(self.pg_interfaces) |
| 900 | self.pg_start() |
| 901 | |
| 902 | # create a peer |
| 903 | if is_ip6: |
| 904 | peer_1 = VppWgPeer( |
| 905 | self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"] |
| 906 | ).add_vpp_config() |
| 907 | else: |
| 908 | peer_1 = VppWgPeer( |
| 909 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 910 | ).add_vpp_config() |
| 911 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 912 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 913 | # skip the first automatic handshake |
| 914 | self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER) |
| 915 | |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 916 | # prepare and send a bunch of handshake initiations |
| 917 | # expect to switch to under load state |
| 918 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 919 | txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD |
| 920 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 921 | |
| 922 | # expect the peer to send a cookie reply |
| 923 | peer_1.consume_cookie(rxs[-1], is_ip6=is_ip6) |
| 924 | |
| 925 | # prepare and send a bunch of handshake initiations with correct mac2 |
| 926 | # expect a handshake response and then ratelimiting |
| 927 | NUM_TO_REJECT = 10 |
| 928 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 929 | txs = [init] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + NUM_TO_REJECT) |
| 930 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 931 | |
| 932 | if is_ip6: |
| 933 | self.assertEqual( |
| 934 | self.base_ratelimited6_err + NUM_TO_REJECT, |
| 935 | self.statistics.get_err_counter(self.ratelimited6_err), |
| 936 | ) |
| 937 | else: |
| 938 | self.assertEqual( |
| 939 | self.base_ratelimited4_err + NUM_TO_REJECT, |
| 940 | self.statistics.get_err_counter(self.ratelimited4_err), |
| 941 | ) |
| 942 | |
| 943 | # verify the response |
| 944 | peer_1.consume_response(rxs[0], is_ip6=is_ip6) |
| 945 | |
| 946 | # clear up under load state |
| 947 | self.sleep(UNDER_LOAD_INTERVAL) |
| 948 | |
| 949 | # remove configs |
| 950 | peer_1.remove_vpp_config() |
| 951 | wg0.remove_vpp_config() |
| 952 | |
| 953 | def test_wg_handshake_ratelimiting_v4(self): |
| 954 | """Handshake ratelimiting (v4)""" |
| 955 | self._test_wg_handshake_ratelimiting_tmpl(is_ip6=False) |
| 956 | |
| 957 | def test_wg_handshake_ratelimiting_v6(self): |
| 958 | """Handshake ratelimiting (v6)""" |
| 959 | self._test_wg_handshake_ratelimiting_tmpl(is_ip6=True) |
| 960 | |
| 961 | def test_wg_handshake_ratelimiting_multi_peer(self): |
| 962 | """Handshake ratelimiting (multiple peer)""" |
| 963 | port = 12323 |
| 964 | |
| 965 | # create wg interface |
| 966 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 967 | wg0.admin_up() |
| 968 | wg0.config_ip4() |
| 969 | |
| 970 | self.pg_enable_capture(self.pg_interfaces) |
| 971 | self.pg_start() |
| 972 | |
| 973 | # create two peers |
| 974 | NUM_PEERS = 2 |
| 975 | self.pg1.generate_remote_hosts(NUM_PEERS) |
| 976 | self.pg1.configure_ipv4_neighbors() |
| 977 | |
| 978 | peer_1 = VppWgPeer( |
| 979 | self, wg0, self.pg1.remote_hosts[0].ip4, port + 1, ["10.11.3.0/24"] |
| 980 | ).add_vpp_config() |
| 981 | peer_2 = VppWgPeer( |
| 982 | self, wg0, self.pg1.remote_hosts[1].ip4, port + 1, ["10.11.4.0/24"] |
| 983 | ).add_vpp_config() |
| 984 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 2) |
| 985 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 986 | # skip the first automatic handshake |
| 987 | self.pg1.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER) |
| 988 | |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 989 | # (peer_1) prepare and send a bunch of handshake initiations |
| 990 | # expect not to switch to under load state |
| 991 | init_1 = peer_1.mk_handshake(self.pg1) |
| 992 | txs = [init_1] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD |
| 993 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 994 | |
| 995 | # (peer_1) expect the peer to send a handshake response |
| 996 | peer_1.consume_response(rxs[0]) |
| 997 | peer_1.noise_reset() |
| 998 | |
| 999 | # (peer_1) send another bunch of handshake initiations |
| 1000 | # expect to switch to under load state |
| 1001 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 1002 | |
| 1003 | # (peer_1) expect the peer to send a cookie reply |
| 1004 | peer_1.consume_cookie(rxs[-1]) |
| 1005 | |
| 1006 | # (peer_2) prepare and send a handshake initiation |
| 1007 | # expect a cookie reply |
| 1008 | init_2 = peer_2.mk_handshake(self.pg1) |
| 1009 | rxs = self.send_and_expect(self.pg1, [init_2], self.pg1) |
| 1010 | peer_2.consume_cookie(rxs[0]) |
| 1011 | |
Alexander Chernavin | cf9144e | 2022-09-23 12:41:31 +0000 | [diff] [blame] | 1012 | # (peer_1) (peer_2) prepare and send a bunch of handshake initiations with correct mac2 |
| 1013 | # expect a handshake response and then ratelimiting |
| 1014 | PEER_1_NUM_TO_REJECT = 2 |
| 1015 | PEER_2_NUM_TO_REJECT = 5 |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 1016 | init_1 = peer_1.mk_handshake(self.pg1) |
Alexander Chernavin | cf9144e | 2022-09-23 12:41:31 +0000 | [diff] [blame] | 1017 | txs = [init_1] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + PEER_1_NUM_TO_REJECT) |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 1018 | init_2 = peer_2.mk_handshake(self.pg1) |
Alexander Chernavin | cf9144e | 2022-09-23 12:41:31 +0000 | [diff] [blame] | 1019 | txs += [init_2] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + PEER_2_NUM_TO_REJECT) |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 1020 | rxs = self.send_and_expect_some(self.pg1, txs, self.pg1) |
| 1021 | |
Alexander Chernavin | cf9144e | 2022-09-23 12:41:31 +0000 | [diff] [blame] | 1022 | self.assertTrue( |
| 1023 | self.base_ratelimited4_err + PEER_1_NUM_TO_REJECT |
| 1024 | < self.statistics.get_err_counter(self.ratelimited4_err) |
| 1025 | <= self.base_ratelimited4_err + PEER_1_NUM_TO_REJECT + PEER_2_NUM_TO_REJECT |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 1026 | ) |
| 1027 | |
Alexander Chernavin | cf9144e | 2022-09-23 12:41:31 +0000 | [diff] [blame] | 1028 | # (peer_1) (peer_2) verify the response |
| 1029 | peer_1.consume_response(rxs[0]) |
| 1030 | peer_2.consume_response(rxs[1]) |
Alexander Chernavin | a6328e5 | 2022-07-20 13:01:42 +0000 | [diff] [blame] | 1031 | |
| 1032 | # clear up under load state |
| 1033 | self.sleep(UNDER_LOAD_INTERVAL) |
| 1034 | |
| 1035 | # remove configs |
| 1036 | peer_1.remove_vpp_config() |
| 1037 | peer_2.remove_vpp_config() |
| 1038 | wg0.remove_vpp_config() |
| 1039 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1040 | def _test_wg_peer_roaming_on_handshake_tmpl(self, is_endpoint_set, is_resp, is_ip6): |
| 1041 | port = 12323 |
| 1042 | |
| 1043 | # create wg interface |
| 1044 | if is_ip6: |
| 1045 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 1046 | wg0.admin_up() |
| 1047 | wg0.config_ip6() |
| 1048 | else: |
| 1049 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 1050 | wg0.admin_up() |
| 1051 | wg0.config_ip4() |
| 1052 | |
| 1053 | self.pg_enable_capture(self.pg_interfaces) |
| 1054 | self.pg_start() |
| 1055 | |
| 1056 | # create more remote hosts |
| 1057 | NUM_REMOTE_HOSTS = 2 |
| 1058 | self.pg1.generate_remote_hosts(NUM_REMOTE_HOSTS) |
| 1059 | if is_ip6: |
| 1060 | self.pg1.configure_ipv6_neighbors() |
| 1061 | else: |
| 1062 | self.pg1.configure_ipv4_neighbors() |
| 1063 | |
| 1064 | # create a peer |
| 1065 | if is_ip6: |
| 1066 | peer_1 = VppWgPeer( |
| 1067 | test=self, |
| 1068 | itf=wg0, |
| 1069 | endpoint=self.pg1.remote_hosts[0].ip6 if is_endpoint_set else "::", |
| 1070 | port=port + 1 if is_endpoint_set else 0, |
| 1071 | allowed_ips=["1::3:0/112"], |
| 1072 | ).add_vpp_config() |
| 1073 | else: |
| 1074 | peer_1 = VppWgPeer( |
| 1075 | test=self, |
| 1076 | itf=wg0, |
| 1077 | endpoint=self.pg1.remote_hosts[0].ip4 if is_endpoint_set else "0.0.0.0", |
| 1078 | port=port + 1 if is_endpoint_set else 0, |
| 1079 | allowed_ips=["10.11.3.0/24"], |
| 1080 | ).add_vpp_config() |
| 1081 | self.assertTrue(peer_1.query_vpp_config()) |
| 1082 | |
| 1083 | if is_resp: |
| 1084 | # wait for the peer to send a handshake initiation |
| 1085 | rxs = self.pg1.get_capture(1, timeout=2) |
| 1086 | # prepare a handshake response |
| 1087 | resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6) |
| 1088 | # change endpoint |
| 1089 | if is_ip6: |
| 1090 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100) |
| 1091 | resp[IPv6].src, resp[UDP].sport = peer_1.endpoint, peer_1.port |
| 1092 | else: |
| 1093 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100) |
| 1094 | resp[IP].src, resp[UDP].sport = peer_1.endpoint, peer_1.port |
| 1095 | # send the handshake response |
| 1096 | # expect a keepalive message sent to the new endpoint |
| 1097 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 1098 | # verify the keepalive message |
| 1099 | b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6) |
| 1100 | self.assertEqual(0, len(b)) |
| 1101 | else: |
| 1102 | # change endpoint |
| 1103 | if is_ip6: |
| 1104 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100) |
| 1105 | else: |
| 1106 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100) |
| 1107 | # prepare and send a handshake initiation |
| 1108 | # expect a handshake response sent to the new endpoint |
| 1109 | init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6) |
| 1110 | rxs = self.send_and_expect(self.pg1, [init], self.pg1) |
| 1111 | # verify the response |
| 1112 | peer_1.consume_response(rxs[0], is_ip6=is_ip6) |
| 1113 | self.assertTrue(peer_1.query_vpp_config()) |
| 1114 | |
| 1115 | # remove configs |
| 1116 | peer_1.remove_vpp_config() |
| 1117 | wg0.remove_vpp_config() |
| 1118 | |
| 1119 | def test_wg_peer_roaming_on_init_v4(self): |
| 1120 | """Peer roaming on handshake initiation (v4)""" |
| 1121 | self._test_wg_peer_roaming_on_handshake_tmpl( |
| 1122 | is_endpoint_set=False, is_resp=False, is_ip6=False |
| 1123 | ) |
| 1124 | |
| 1125 | def test_wg_peer_roaming_on_init_v6(self): |
| 1126 | """Peer roaming on handshake initiation (v6)""" |
| 1127 | self._test_wg_peer_roaming_on_handshake_tmpl( |
| 1128 | is_endpoint_set=False, is_resp=False, is_ip6=True |
| 1129 | ) |
| 1130 | |
| 1131 | def test_wg_peer_roaming_on_resp_v4(self): |
| 1132 | """Peer roaming on handshake response (v4)""" |
| 1133 | self._test_wg_peer_roaming_on_handshake_tmpl( |
| 1134 | is_endpoint_set=True, is_resp=True, is_ip6=False |
| 1135 | ) |
| 1136 | |
| 1137 | def test_wg_peer_roaming_on_resp_v6(self): |
| 1138 | """Peer roaming on handshake response (v6)""" |
| 1139 | self._test_wg_peer_roaming_on_handshake_tmpl( |
| 1140 | is_endpoint_set=True, is_resp=True, is_ip6=True |
| 1141 | ) |
| 1142 | |
| 1143 | def _test_wg_peer_roaming_on_data_tmpl(self, is_async, is_ip6): |
| 1144 | self.vapi.wg_set_async_mode(is_async) |
| 1145 | port = 12323 |
| 1146 | |
| 1147 | # create wg interface |
| 1148 | if is_ip6: |
| 1149 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 1150 | wg0.admin_up() |
| 1151 | wg0.config_ip6() |
| 1152 | else: |
| 1153 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 1154 | wg0.admin_up() |
| 1155 | wg0.config_ip4() |
| 1156 | |
| 1157 | self.pg_enable_capture(self.pg_interfaces) |
| 1158 | self.pg_start() |
| 1159 | |
| 1160 | # create more remote hosts |
| 1161 | NUM_REMOTE_HOSTS = 2 |
| 1162 | self.pg1.generate_remote_hosts(NUM_REMOTE_HOSTS) |
| 1163 | if is_ip6: |
| 1164 | self.pg1.configure_ipv6_neighbors() |
| 1165 | else: |
| 1166 | self.pg1.configure_ipv4_neighbors() |
| 1167 | |
| 1168 | # create a peer |
| 1169 | if is_ip6: |
| 1170 | peer_1 = VppWgPeer( |
| 1171 | self, wg0, self.pg1.remote_hosts[0].ip6, port + 1, ["1::3:0/112"] |
| 1172 | ).add_vpp_config() |
| 1173 | else: |
| 1174 | peer_1 = VppWgPeer( |
| 1175 | self, wg0, self.pg1.remote_hosts[0].ip4, port + 1, ["10.11.3.0/24"] |
| 1176 | ).add_vpp_config() |
| 1177 | self.assertTrue(peer_1.query_vpp_config()) |
| 1178 | |
| 1179 | # create a route to rewrite traffic into the wg interface |
| 1180 | if is_ip6: |
| 1181 | r1 = VppIpRoute( |
| 1182 | self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)] |
| 1183 | ).add_vpp_config() |
| 1184 | else: |
| 1185 | r1 = VppIpRoute( |
| 1186 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 1187 | ).add_vpp_config() |
| 1188 | |
| 1189 | # wait for the peer to send a handshake initiation |
| 1190 | rxs = self.pg1.get_capture(1, timeout=2) |
| 1191 | |
| 1192 | # prepare and send a handshake response |
| 1193 | # expect a keepalive message |
| 1194 | resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6) |
| 1195 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 1196 | |
| 1197 | # verify the keepalive message |
| 1198 | b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6) |
| 1199 | self.assertEqual(0, len(b)) |
| 1200 | |
| 1201 | # change endpoint |
| 1202 | if is_ip6: |
| 1203 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100) |
| 1204 | else: |
| 1205 | peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100) |
| 1206 | |
| 1207 | # prepare and send a data packet |
| 1208 | # expect endpoint change |
| 1209 | if is_ip6: |
| 1210 | ip_header = IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 1211 | else: |
| 1212 | ip_header = IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1213 | data = ( |
| 1214 | peer_1.mk_tunnel_header(self.pg1, is_ip6=is_ip6) |
| 1215 | / Wireguard(message_type=4, reserved_zero=0) |
| 1216 | / WireguardTransport( |
| 1217 | receiver_index=peer_1.sender, |
| 1218 | counter=0, |
| 1219 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1220 | ip_header / UDP(sport=222, dport=223) / Raw() |
| 1221 | ), |
| 1222 | ) |
| 1223 | ) |
| 1224 | rxs = self.send_and_expect(self.pg1, [data], self.pg0) |
| 1225 | if is_ip6: |
| 1226 | self.assertEqual(rxs[0][IPv6].dst, self.pg0.remote_ip6) |
| 1227 | self.assertEqual(rxs[0][IPv6].hlim, 19) |
| 1228 | else: |
| 1229 | self.assertEqual(rxs[0][IP].dst, self.pg0.remote_ip4) |
| 1230 | self.assertEqual(rxs[0][IP].ttl, 19) |
| 1231 | self.assertTrue(peer_1.query_vpp_config()) |
| 1232 | |
| 1233 | # prepare and send a packet that will be rewritten into the wg interface |
| 1234 | # expect a data packet sent to the new endpoint |
| 1235 | if is_ip6: |
| 1236 | ip_header = IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1237 | else: |
| 1238 | ip_header = IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1239 | p = ( |
| 1240 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1241 | / ip_header |
| 1242 | / UDP(sport=555, dport=556) |
| 1243 | / Raw() |
| 1244 | ) |
| 1245 | rxs = self.send_and_expect(self.pg0, [p], self.pg1) |
| 1246 | |
| 1247 | # verify the data packet |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 1248 | peer_1.validate_encapped(rxs, p, is_tunnel_ip6=is_ip6, is_transport_ip6=is_ip6) |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1249 | |
| 1250 | # remove configs |
| 1251 | r1.remove_vpp_config() |
| 1252 | peer_1.remove_vpp_config() |
| 1253 | wg0.remove_vpp_config() |
| 1254 | |
| 1255 | def test_wg_peer_roaming_on_data_v4_sync(self): |
| 1256 | """Peer roaming on data packet (v4, sync)""" |
| 1257 | self._test_wg_peer_roaming_on_data_tmpl(is_async=False, is_ip6=False) |
| 1258 | |
| 1259 | def test_wg_peer_roaming_on_data_v6_sync(self): |
| 1260 | """Peer roaming on data packet (v6, sync)""" |
| 1261 | self._test_wg_peer_roaming_on_data_tmpl(is_async=False, is_ip6=True) |
| 1262 | |
| 1263 | def test_wg_peer_roaming_on_data_v4_async(self): |
| 1264 | """Peer roaming on data packet (v4, async)""" |
| 1265 | self._test_wg_peer_roaming_on_data_tmpl(is_async=True, is_ip6=False) |
| 1266 | |
| 1267 | def test_wg_peer_roaming_on_data_v6_async(self): |
| 1268 | """Peer roaming on data packet (v6, async)""" |
| 1269 | self._test_wg_peer_roaming_on_data_tmpl(is_async=True, is_ip6=True) |
| 1270 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1271 | def test_wg_peer_resp(self): |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 1272 | """Send handshake response IPv4 tunnel""" |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1273 | port = 12323 |
| 1274 | |
| 1275 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1276 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1277 | wg0.admin_up() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1278 | wg0.config_ip4() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1279 | |
| 1280 | self.pg_enable_capture(self.pg_interfaces) |
| 1281 | self.pg_start() |
| 1282 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1283 | peer_1 = VppWgPeer( |
| 1284 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 1285 | ).add_vpp_config() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1286 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 1287 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1288 | r1 = VppIpRoute( |
| 1289 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 1290 | ).add_vpp_config() |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 1291 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1292 | # wait for the peer to send a handshake |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1293 | rx = self.pg1.get_capture(1, timeout=2) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1294 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1295 | # consume the handshake in the noise protocol and |
| 1296 | # generate the response |
| 1297 | resp = peer_1.consume_init(rx[0], self.pg1) |
| 1298 | |
| 1299 | # send the response, get keepalive |
| 1300 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 1301 | |
| 1302 | for rx in rxs: |
| 1303 | b = peer_1.decrypt_transport(rx) |
| 1304 | self.assertEqual(0, len(b)) |
| 1305 | |
| 1306 | # send a packets that are routed into the tunnel |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1307 | p = ( |
| 1308 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1309 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1310 | / UDP(sport=555, dport=556) |
| 1311 | / Raw(b"\x00" * 80) |
| 1312 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1313 | |
| 1314 | rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) |
| 1315 | |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 1316 | peer_1.validate_encapped(rxs, p) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1317 | |
| 1318 | # send packets into the tunnel, expect to receive them on |
| 1319 | # the other side |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1320 | p = [ |
| 1321 | ( |
| 1322 | peer_1.mk_tunnel_header(self.pg1) |
| 1323 | / Wireguard(message_type=4, reserved_zero=0) |
| 1324 | / WireguardTransport( |
| 1325 | receiver_index=peer_1.sender, |
| 1326 | counter=ii, |
| 1327 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1328 | ( |
| 1329 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1330 | / UDP(sport=222, dport=223) |
| 1331 | / Raw() |
| 1332 | ) |
| 1333 | ), |
| 1334 | ) |
| 1335 | ) |
| 1336 | for ii in range(255) |
| 1337 | ] |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1338 | |
| 1339 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 1340 | |
| 1341 | for rx in rxs: |
| 1342 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 1343 | self.assertEqual(rx[IP].ttl, 19) |
| 1344 | |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 1345 | r1.remove_vpp_config() |
| 1346 | peer_1.remove_vpp_config() |
| 1347 | wg0.remove_vpp_config() |
| 1348 | |
Artem Glazychev | b9e391e | 2022-10-25 18:48:40 +0700 | [diff] [blame] | 1349 | def test_wg_peer_resp_ipv6(self): |
| 1350 | """Send handshake response IPv6 tunnel""" |
| 1351 | port = 12323 |
| 1352 | |
| 1353 | # Create interfaces |
| 1354 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 1355 | wg0.admin_up() |
| 1356 | wg0.config_ip4() |
| 1357 | |
| 1358 | self.pg_enable_capture(self.pg_interfaces) |
| 1359 | self.pg_start() |
| 1360 | |
| 1361 | peer_1 = VppWgPeer( |
| 1362 | self, wg0, self.pg1.remote_ip6, port + 1, ["10.11.3.0/24"] |
| 1363 | ).add_vpp_config() |
| 1364 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 1365 | |
| 1366 | r1 = VppIpRoute( |
| 1367 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 1368 | ).add_vpp_config() |
| 1369 | |
| 1370 | # wait for the peer to send a handshake |
| 1371 | rx = self.pg1.get_capture(1, timeout=2) |
| 1372 | |
| 1373 | # consume the handshake in the noise protocol and |
| 1374 | # generate the response |
| 1375 | resp = peer_1.consume_init(rx[0], self.pg1, is_ip6=True) |
| 1376 | |
| 1377 | # send the response, get keepalive |
| 1378 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 1379 | |
| 1380 | for rx in rxs: |
| 1381 | b = peer_1.decrypt_transport(rx, True) |
| 1382 | self.assertEqual(0, len(b)) |
| 1383 | |
| 1384 | # send a packets that are routed into the tunnel |
| 1385 | p = ( |
| 1386 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1387 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1388 | / UDP(sport=555, dport=556) |
| 1389 | / Raw(b"\x00" * 80) |
| 1390 | ) |
| 1391 | |
| 1392 | rxs = self.send_and_expect(self.pg0, p * 2, self.pg1) |
| 1393 | peer_1.validate_encapped(rxs, p, True) |
| 1394 | |
| 1395 | # send packets into the tunnel, expect to receive them on |
| 1396 | # the other side |
| 1397 | p = [ |
| 1398 | ( |
| 1399 | peer_1.mk_tunnel_header(self.pg1, True) |
| 1400 | / Wireguard(message_type=4, reserved_zero=0) |
| 1401 | / WireguardTransport( |
| 1402 | receiver_index=peer_1.sender, |
| 1403 | counter=ii, |
| 1404 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1405 | ( |
| 1406 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1407 | / UDP(sport=222, dport=223) |
| 1408 | / Raw() |
| 1409 | ) |
| 1410 | ), |
| 1411 | ) |
| 1412 | ) |
| 1413 | for ii in range(255) |
| 1414 | ] |
| 1415 | |
| 1416 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 1417 | |
| 1418 | for rx in rxs: |
| 1419 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 1420 | self.assertEqual(rx[IP].ttl, 19) |
| 1421 | |
| 1422 | r1.remove_vpp_config() |
| 1423 | peer_1.remove_vpp_config() |
| 1424 | wg0.remove_vpp_config() |
| 1425 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1426 | def test_wg_peer_v4o4(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1427 | """Test v4o4""" |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1428 | |
Artem Glazychev | 124d5e0 | 2020-09-30 01:07:46 +0700 | [diff] [blame] | 1429 | port = 12333 |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1430 | |
| 1431 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1432 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1433 | wg0.admin_up() |
| 1434 | wg0.config_ip4() |
| 1435 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1436 | peer_1 = VppWgPeer( |
| 1437 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 1438 | ).add_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1439 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1440 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1441 | r1 = VppIpRoute( |
| 1442 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 1443 | ).add_vpp_config() |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1444 | r2 = VppIpRoute( |
| 1445 | self, "20.22.3.0", 24, [VppRoutePath("20.22.3.1", wg0.sw_if_index)] |
| 1446 | ).add_vpp_config() |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 1447 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 1448 | # route a packet into the wg interface |
| 1449 | # use the allowed-ip prefix |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1450 | # this is dropped because the peer is not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1451 | p = ( |
| 1452 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1453 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1454 | / UDP(sport=555, dport=556) |
| 1455 | / Raw() |
| 1456 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1457 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1458 | self.assertEqual( |
| 1459 | self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error) |
| 1460 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1461 | |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1462 | # route a packet into the wg interface |
| 1463 | # use a not allowed-ip prefix |
| 1464 | # this is dropped because there is no matching peer |
| 1465 | p = ( |
| 1466 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1467 | / IP(src=self.pg0.remote_ip4, dst="20.22.3.2") |
| 1468 | / UDP(sport=555, dport=556) |
| 1469 | / Raw() |
| 1470 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1471 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1472 | self.assertEqual( |
| 1473 | self.base_peer4_out_err + 1, |
| 1474 | self.statistics.get_err_counter(self.peer4_out_err), |
| 1475 | ) |
| 1476 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1477 | # send a handsake from the peer with an invalid MAC |
| 1478 | p = peer_1.mk_handshake(self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1479 | p[WireguardInitiation].mac1 = b"foobar" |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1480 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1481 | self.assertEqual( |
| 1482 | self.base_mac4_err + 1, self.statistics.get_err_counter(self.mac4_error) |
| 1483 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1484 | |
| 1485 | # send a handsake from the peer but signed by the wrong key. |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1486 | p = peer_1.mk_handshake( |
| 1487 | self.pg1, False, X25519PrivateKey.generate().public_key() |
| 1488 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1489 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1490 | self.assertEqual( |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1491 | self.base_peer4_in_err + 1, |
| 1492 | self.statistics.get_err_counter(self.peer4_in_err), |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1493 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1494 | |
| 1495 | # send a valid handsake init for which we expect a response |
| 1496 | p = peer_1.mk_handshake(self.pg1) |
| 1497 | |
| 1498 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 1499 | |
| 1500 | peer_1.consume_response(rx[0]) |
| 1501 | |
| 1502 | # route a packet into the wg interface |
| 1503 | # this is dropped because the peer is still not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1504 | p = ( |
| 1505 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1506 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1507 | / UDP(sport=555, dport=556) |
| 1508 | / Raw() |
| 1509 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1510 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1511 | self.assertEqual( |
| 1512 | self.base_kp4_err + 2, self.statistics.get_err_counter(self.kp4_error) |
| 1513 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1514 | |
| 1515 | # send a data packet from the peer through the tunnel |
| 1516 | # this completes the handshake |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1517 | p = ( |
| 1518 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1519 | / UDP(sport=222, dport=223) |
| 1520 | / Raw() |
| 1521 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1522 | d = peer_1.encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1523 | p = peer_1.mk_tunnel_header(self.pg1) / ( |
| 1524 | Wireguard(message_type=4, reserved_zero=0) |
| 1525 | / WireguardTransport( |
| 1526 | receiver_index=peer_1.sender, counter=0, encrypted_encapsulated_packet=d |
| 1527 | ) |
| 1528 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1529 | rxs = self.send_and_expect(self.pg1, [p], self.pg0) |
| 1530 | |
| 1531 | for rx in rxs: |
| 1532 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 1533 | self.assertEqual(rx[IP].ttl, 19) |
| 1534 | |
| 1535 | # send a packets that are routed into the tunnel |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1536 | p = ( |
| 1537 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1538 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1539 | / UDP(sport=555, dport=556) |
| 1540 | / Raw(b"\x00" * 80) |
| 1541 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1542 | |
| 1543 | rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) |
| 1544 | |
| 1545 | for rx in rxs: |
| 1546 | rx = IP(peer_1.decrypt_transport(rx)) |
| 1547 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1548 | # check the original packet is present |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1549 | self.assertEqual(rx[IP].dst, p[IP].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1550 | self.assertEqual(rx[IP].ttl, p[IP].ttl - 1) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1551 | |
| 1552 | # send packets into the tunnel, expect to receive them on |
| 1553 | # the other side |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1554 | p = [ |
| 1555 | ( |
| 1556 | peer_1.mk_tunnel_header(self.pg1) |
| 1557 | / Wireguard(message_type=4, reserved_zero=0) |
| 1558 | / WireguardTransport( |
| 1559 | receiver_index=peer_1.sender, |
| 1560 | counter=ii + 1, |
| 1561 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1562 | ( |
| 1563 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1564 | / UDP(sport=222, dport=223) |
| 1565 | / Raw() |
| 1566 | ) |
| 1567 | ), |
| 1568 | ) |
| 1569 | ) |
| 1570 | for ii in range(255) |
| 1571 | ] |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1572 | |
| 1573 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 1574 | |
| 1575 | for rx in rxs: |
| 1576 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 1577 | self.assertEqual(rx[IP].ttl, 19) |
| 1578 | |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 1579 | r1.remove_vpp_config() |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1580 | r2.remove_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 1581 | peer_1.remove_vpp_config() |
| 1582 | wg0.remove_vpp_config() |
| 1583 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1584 | def test_wg_peer_v6o6(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1585 | """Test v6o6""" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1586 | |
| 1587 | port = 12343 |
| 1588 | |
| 1589 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1590 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1591 | wg0.admin_up() |
| 1592 | wg0.config_ip6() |
| 1593 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1594 | peer_1 = VppWgPeer( |
| 1595 | self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"] |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1596 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1597 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 1598 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1599 | r1 = VppIpRoute( |
| 1600 | self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)] |
| 1601 | ).add_vpp_config() |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1602 | r2 = VppIpRoute( |
| 1603 | self, "22::3:0", 112, [VppRoutePath("22::3:1", wg0.sw_if_index)] |
| 1604 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1605 | |
| 1606 | # route a packet into the wg interface |
| 1607 | # use the allowed-ip prefix |
| 1608 | # this is dropped because the peer is not initiated |
| 1609 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1610 | p = ( |
| 1611 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1612 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1613 | / UDP(sport=555, dport=556) |
| 1614 | / Raw() |
| 1615 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1616 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1617 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1618 | self.assertEqual( |
| 1619 | self.base_kp6_err + 1, self.statistics.get_err_counter(self.kp6_error) |
| 1620 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1621 | |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1622 | # route a packet into the wg interface |
| 1623 | # use a not allowed-ip prefix |
| 1624 | # this is dropped because there is no matching peer |
| 1625 | p = ( |
| 1626 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1627 | / IPv6(src=self.pg0.remote_ip6, dst="22::3:2") |
| 1628 | / UDP(sport=555, dport=556) |
| 1629 | / Raw() |
| 1630 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1631 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1632 | self.assertEqual( |
| 1633 | self.base_peer6_out_err + 1, |
| 1634 | self.statistics.get_err_counter(self.peer6_out_err), |
| 1635 | ) |
| 1636 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1637 | # send a handsake from the peer with an invalid MAC |
| 1638 | p = peer_1.mk_handshake(self.pg1, True) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1639 | p[WireguardInitiation].mac1 = b"foobar" |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1640 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1641 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1642 | self.assertEqual( |
| 1643 | self.base_mac6_err + 1, self.statistics.get_err_counter(self.mac6_error) |
| 1644 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1645 | |
| 1646 | # send a handsake from the peer but signed by the wrong key. |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1647 | p = peer_1.mk_handshake( |
| 1648 | self.pg1, True, X25519PrivateKey.generate().public_key() |
| 1649 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1650 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1651 | self.assertEqual( |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1652 | self.base_peer6_in_err + 1, |
| 1653 | self.statistics.get_err_counter(self.peer6_in_err), |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1654 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1655 | |
| 1656 | # send a valid handsake init for which we expect a response |
| 1657 | p = peer_1.mk_handshake(self.pg1, True) |
| 1658 | |
| 1659 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 1660 | |
| 1661 | peer_1.consume_response(rx[0], True) |
| 1662 | |
| 1663 | # route a packet into the wg interface |
| 1664 | # this is dropped because the peer is still not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1665 | p = ( |
| 1666 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1667 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1668 | / UDP(sport=555, dport=556) |
| 1669 | / Raw() |
| 1670 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1671 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1672 | self.assertEqual( |
| 1673 | self.base_kp6_err + 2, self.statistics.get_err_counter(self.kp6_error) |
| 1674 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1675 | |
| 1676 | # send a data packet from the peer through the tunnel |
| 1677 | # this completes the handshake |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1678 | p = ( |
| 1679 | IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 1680 | / UDP(sport=222, dport=223) |
| 1681 | / Raw() |
| 1682 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1683 | d = peer_1.encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1684 | p = peer_1.mk_tunnel_header(self.pg1, True) / ( |
| 1685 | Wireguard(message_type=4, reserved_zero=0) |
| 1686 | / WireguardTransport( |
| 1687 | receiver_index=peer_1.sender, counter=0, encrypted_encapsulated_packet=d |
| 1688 | ) |
| 1689 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1690 | rxs = self.send_and_expect(self.pg1, [p], self.pg0) |
| 1691 | |
| 1692 | for rx in rxs: |
| 1693 | self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) |
| 1694 | self.assertEqual(rx[IPv6].hlim, 19) |
| 1695 | |
| 1696 | # send a packets that are routed into the tunnel |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1697 | p = ( |
| 1698 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1699 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1700 | / UDP(sport=555, dport=556) |
| 1701 | / Raw(b"\x00" * 80) |
| 1702 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1703 | |
| 1704 | rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) |
| 1705 | |
| 1706 | for rx in rxs: |
| 1707 | rx = IPv6(peer_1.decrypt_transport(rx, True)) |
| 1708 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1709 | # check the original packet is present |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1710 | self.assertEqual(rx[IPv6].dst, p[IPv6].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1711 | self.assertEqual(rx[IPv6].hlim, p[IPv6].hlim - 1) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1712 | |
| 1713 | # send packets into the tunnel, expect to receive them on |
| 1714 | # the other side |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1715 | p = [ |
| 1716 | ( |
| 1717 | peer_1.mk_tunnel_header(self.pg1, True) |
| 1718 | / Wireguard(message_type=4, reserved_zero=0) |
| 1719 | / WireguardTransport( |
| 1720 | receiver_index=peer_1.sender, |
| 1721 | counter=ii + 1, |
| 1722 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1723 | ( |
| 1724 | IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 1725 | / UDP(sport=222, dport=223) |
| 1726 | / Raw() |
| 1727 | ) |
| 1728 | ), |
| 1729 | ) |
| 1730 | ) |
| 1731 | for ii in range(255) |
| 1732 | ] |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1733 | |
| 1734 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 1735 | |
| 1736 | for rx in rxs: |
| 1737 | self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) |
| 1738 | self.assertEqual(rx[IPv6].hlim, 19) |
| 1739 | |
| 1740 | r1.remove_vpp_config() |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1741 | r2.remove_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1742 | peer_1.remove_vpp_config() |
| 1743 | wg0.remove_vpp_config() |
| 1744 | |
| 1745 | def test_wg_peer_v6o4(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1746 | """Test v6o4""" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1747 | |
| 1748 | port = 12353 |
| 1749 | |
| 1750 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1751 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1752 | wg0.admin_up() |
| 1753 | wg0.config_ip6() |
| 1754 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1755 | peer_1 = VppWgPeer( |
| 1756 | self, wg0, self.pg1.remote_ip4, port + 1, ["1::3:0/112"] |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1757 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1758 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 1759 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1760 | r1 = VppIpRoute( |
| 1761 | self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)] |
| 1762 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1763 | |
| 1764 | # route a packet into the wg interface |
| 1765 | # use the allowed-ip prefix |
| 1766 | # this is dropped because the peer is not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1767 | p = ( |
| 1768 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1769 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1770 | / UDP(sport=555, dport=556) |
| 1771 | / Raw() |
| 1772 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1773 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1774 | self.assertEqual( |
| 1775 | self.base_kp6_err + 1, self.statistics.get_err_counter(self.kp6_error) |
| 1776 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1777 | |
| 1778 | # send a handsake from the peer with an invalid MAC |
| 1779 | p = peer_1.mk_handshake(self.pg1) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1780 | p[WireguardInitiation].mac1 = b"foobar" |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1781 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1782 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1783 | self.assertEqual( |
| 1784 | self.base_mac4_err + 1, self.statistics.get_err_counter(self.mac4_error) |
| 1785 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1786 | |
| 1787 | # send a handsake from the peer but signed by the wrong key. |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1788 | p = peer_1.mk_handshake( |
| 1789 | self.pg1, False, X25519PrivateKey.generate().public_key() |
| 1790 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1791 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1792 | self.assertEqual( |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1793 | self.base_peer4_in_err + 1, |
| 1794 | self.statistics.get_err_counter(self.peer4_in_err), |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1795 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1796 | |
| 1797 | # send a valid handsake init for which we expect a response |
| 1798 | p = peer_1.mk_handshake(self.pg1) |
| 1799 | |
| 1800 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 1801 | |
| 1802 | peer_1.consume_response(rx[0]) |
| 1803 | |
| 1804 | # route a packet into the wg interface |
| 1805 | # this is dropped because the peer is still not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1806 | p = ( |
| 1807 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1808 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1809 | / UDP(sport=555, dport=556) |
| 1810 | / Raw() |
| 1811 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1812 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1813 | self.assertEqual( |
| 1814 | self.base_kp6_err + 2, self.statistics.get_err_counter(self.kp6_error) |
| 1815 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1816 | |
| 1817 | # send a data packet from the peer through the tunnel |
| 1818 | # this completes the handshake |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1819 | p = ( |
| 1820 | IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 1821 | / UDP(sport=222, dport=223) |
| 1822 | / Raw() |
| 1823 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1824 | d = peer_1.encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1825 | p = peer_1.mk_tunnel_header(self.pg1) / ( |
| 1826 | Wireguard(message_type=4, reserved_zero=0) |
| 1827 | / WireguardTransport( |
| 1828 | receiver_index=peer_1.sender, counter=0, encrypted_encapsulated_packet=d |
| 1829 | ) |
| 1830 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1831 | rxs = self.send_and_expect(self.pg1, [p], self.pg0) |
| 1832 | |
| 1833 | for rx in rxs: |
| 1834 | self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) |
| 1835 | self.assertEqual(rx[IPv6].hlim, 19) |
| 1836 | |
| 1837 | # send a packets that are routed into the tunnel |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1838 | p = ( |
| 1839 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1840 | / IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 1841 | / UDP(sport=555, dport=556) |
| 1842 | / Raw(b"\x00" * 80) |
| 1843 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1844 | |
| 1845 | rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) |
| 1846 | |
| 1847 | for rx in rxs: |
| 1848 | rx = IPv6(peer_1.decrypt_transport(rx)) |
| 1849 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1850 | # check the original packet is present |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1851 | self.assertEqual(rx[IPv6].dst, p[IPv6].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1852 | self.assertEqual(rx[IPv6].hlim, p[IPv6].hlim - 1) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1853 | |
| 1854 | # send packets into the tunnel, expect to receive them on |
| 1855 | # the other side |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1856 | p = [ |
| 1857 | ( |
| 1858 | peer_1.mk_tunnel_header(self.pg1) |
| 1859 | / Wireguard(message_type=4, reserved_zero=0) |
| 1860 | / WireguardTransport( |
| 1861 | receiver_index=peer_1.sender, |
| 1862 | counter=ii + 1, |
| 1863 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 1864 | ( |
| 1865 | IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 1866 | / UDP(sport=222, dport=223) |
| 1867 | / Raw() |
| 1868 | ) |
| 1869 | ), |
| 1870 | ) |
| 1871 | ) |
| 1872 | for ii in range(255) |
| 1873 | ] |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1874 | |
| 1875 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 1876 | |
| 1877 | for rx in rxs: |
| 1878 | self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) |
| 1879 | self.assertEqual(rx[IPv6].hlim, 19) |
| 1880 | |
| 1881 | r1.remove_vpp_config() |
| 1882 | peer_1.remove_vpp_config() |
| 1883 | wg0.remove_vpp_config() |
| 1884 | |
| 1885 | def test_wg_peer_v4o6(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1886 | """Test v4o6""" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1887 | |
| 1888 | port = 12363 |
| 1889 | |
| 1890 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1891 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1892 | wg0.admin_up() |
| 1893 | wg0.config_ip4() |
| 1894 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1895 | peer_1 = VppWgPeer( |
| 1896 | self, wg0, self.pg1.remote_ip6, port + 1, ["10.11.3.0/24"] |
| 1897 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1898 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 1899 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1900 | r1 = VppIpRoute( |
| 1901 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 1902 | ).add_vpp_config() |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1903 | |
| 1904 | # route a packet into the wg interface |
| 1905 | # use the allowed-ip prefix |
| 1906 | # this is dropped because the peer is not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1907 | p = ( |
| 1908 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1909 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1910 | / UDP(sport=555, dport=556) |
| 1911 | / Raw() |
| 1912 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1913 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1914 | self.assertEqual( |
| 1915 | self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error) |
| 1916 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1917 | |
| 1918 | # send a handsake from the peer with an invalid MAC |
| 1919 | p = peer_1.mk_handshake(self.pg1, True) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1920 | p[WireguardInitiation].mac1 = b"foobar" |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1921 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1922 | self.assertEqual( |
| 1923 | self.base_mac6_err + 1, self.statistics.get_err_counter(self.mac6_error) |
| 1924 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1925 | |
| 1926 | # send a handsake from the peer but signed by the wrong key. |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1927 | p = peer_1.mk_handshake( |
| 1928 | self.pg1, True, X25519PrivateKey.generate().public_key() |
| 1929 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1930 | self.send_and_assert_no_replies_ignoring_init(self.pg1, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1931 | self.assertEqual( |
Alexander Chernavin | 1477c72 | 2022-06-02 09:55:37 +0000 | [diff] [blame] | 1932 | self.base_peer6_in_err + 1, |
| 1933 | self.statistics.get_err_counter(self.peer6_in_err), |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1934 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1935 | |
| 1936 | # send a valid handsake init for which we expect a response |
| 1937 | p = peer_1.mk_handshake(self.pg1, True) |
| 1938 | |
| 1939 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 1940 | |
| 1941 | peer_1.consume_response(rx[0], True) |
| 1942 | |
| 1943 | # route a packet into the wg interface |
| 1944 | # this is dropped because the peer is still not initiated |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1945 | p = ( |
| 1946 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1947 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1948 | / UDP(sport=555, dport=556) |
| 1949 | / Raw() |
| 1950 | ) |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 1951 | self.send_and_assert_no_replies_ignoring_init(self.pg0, [p]) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1952 | self.assertEqual( |
| 1953 | self.base_kp4_err + 2, self.statistics.get_err_counter(self.kp4_error) |
| 1954 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1955 | |
| 1956 | # send a data packet from the peer through the tunnel |
| 1957 | # this completes the handshake |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1958 | p = ( |
| 1959 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 1960 | / UDP(sport=222, dport=223) |
| 1961 | / Raw() |
| 1962 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1963 | d = peer_1.encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1964 | p = peer_1.mk_tunnel_header(self.pg1, True) / ( |
| 1965 | Wireguard(message_type=4, reserved_zero=0) |
| 1966 | / WireguardTransport( |
| 1967 | receiver_index=peer_1.sender, counter=0, encrypted_encapsulated_packet=d |
| 1968 | ) |
| 1969 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1970 | rxs = self.send_and_expect(self.pg1, [p], self.pg0) |
| 1971 | |
| 1972 | for rx in rxs: |
| 1973 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 1974 | self.assertEqual(rx[IP].ttl, 19) |
| 1975 | |
| 1976 | # send a packets that are routed into the tunnel |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1977 | p = ( |
| 1978 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 1979 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 1980 | / UDP(sport=555, dport=556) |
| 1981 | / Raw(b"\x00" * 80) |
| 1982 | ) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1983 | |
| 1984 | rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) |
| 1985 | |
| 1986 | for rx in rxs: |
| 1987 | rx = IP(peer_1.decrypt_transport(rx, True)) |
| 1988 | |
Alexander Chernavin | fee9853 | 2022-08-04 08:11:57 +0000 | [diff] [blame] | 1989 | # check the original packet is present |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1990 | self.assertEqual(rx[IP].dst, p[IP].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1991 | self.assertEqual(rx[IP].ttl, p[IP].ttl - 1) |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 1992 | |
| 1993 | # send packets into the tunnel, expect to receive them on |
| 1994 | # the other side |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 1995 | p = [ |
| 1996 | ( |
| 1997 | peer_1.mk_tunnel_header(self.pg1, True) |
| 1998 | / Wireguard(message_type=4, reserved_zero=0) |
| 1999 | / WireguardTransport( |
| 2000 | receiver_index=peer_1.sender, |
| 2001 | counter=ii + 1, |
| 2002 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 2003 | ( |
| 2004 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 2005 | / UDP(sport=222, dport=223) |
| 2006 | / Raw() |
| 2007 | ) |
| 2008 | ), |
| 2009 | ) |
| 2010 | ) |
| 2011 | for ii in range(255) |
| 2012 | ] |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 2013 | |
| 2014 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 2015 | |
| 2016 | for rx in rxs: |
| 2017 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 2018 | self.assertEqual(rx[IP].ttl, 19) |
| 2019 | |
| 2020 | r1.remove_vpp_config() |
| 2021 | peer_1.remove_vpp_config() |
| 2022 | wg0.remove_vpp_config() |
| 2023 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2024 | def test_wg_multi_peer(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2025 | """multiple peer setup""" |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 2026 | port = 12373 |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2027 | |
| 2028 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2029 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2030 | wg1 = VppWgInterface(self, self.pg2.local_ip4, port + 1).add_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2031 | wg0.admin_up() |
| 2032 | wg1.admin_up() |
| 2033 | |
| 2034 | # Check peer counter |
| 2035 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 0) |
| 2036 | |
| 2037 | self.pg_enable_capture(self.pg_interfaces) |
| 2038 | self.pg_start() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2039 | |
| 2040 | # Create many peers on sencond interface |
| 2041 | NUM_PEERS = 16 |
| 2042 | self.pg2.generate_remote_hosts(NUM_PEERS) |
| 2043 | self.pg2.configure_ipv4_neighbors() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2044 | self.pg1.generate_remote_hosts(NUM_PEERS) |
| 2045 | self.pg1.configure_ipv4_neighbors() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2046 | |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2047 | peers_1 = [] |
| 2048 | peers_2 = [] |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 2049 | routes_1 = [] |
| 2050 | routes_2 = [] |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2051 | for i in range(NUM_PEERS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2052 | peers_1.append( |
| 2053 | VppWgPeer( |
| 2054 | self, |
| 2055 | wg0, |
| 2056 | self.pg1.remote_hosts[i].ip4, |
| 2057 | port + 1 + i, |
| 2058 | ["10.0.%d.4/32" % i], |
| 2059 | ).add_vpp_config() |
| 2060 | ) |
| 2061 | routes_1.append( |
| 2062 | VppIpRoute( |
| 2063 | self, |
| 2064 | "10.0.%d.4" % i, |
| 2065 | 32, |
| 2066 | [VppRoutePath(self.pg1.remote_hosts[i].ip4, wg0.sw_if_index)], |
| 2067 | ).add_vpp_config() |
| 2068 | ) |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 2069 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2070 | peers_2.append( |
| 2071 | VppWgPeer( |
| 2072 | self, |
| 2073 | wg1, |
| 2074 | self.pg2.remote_hosts[i].ip4, |
| 2075 | port + 100 + i, |
| 2076 | ["10.100.%d.4/32" % i], |
| 2077 | ).add_vpp_config() |
| 2078 | ) |
| 2079 | routes_2.append( |
| 2080 | VppIpRoute( |
| 2081 | self, |
| 2082 | "10.100.%d.4" % i, |
| 2083 | 32, |
| 2084 | [VppRoutePath(self.pg2.remote_hosts[i].ip4, wg1.sw_if_index)], |
| 2085 | ).add_vpp_config() |
| 2086 | ) |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2087 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2088 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_PEERS * 2) |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2089 | |
| 2090 | self.logger.info(self.vapi.cli("show wireguard peer")) |
| 2091 | self.logger.info(self.vapi.cli("show wireguard interface")) |
| 2092 | self.logger.info(self.vapi.cli("show adj 37")) |
| 2093 | self.logger.info(self.vapi.cli("sh ip fib 172.16.3.17")) |
| 2094 | self.logger.info(self.vapi.cli("sh ip fib 10.11.3.0")) |
| 2095 | |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 2096 | # remove routes |
| 2097 | for r in routes_1: |
| 2098 | r.remove_vpp_config() |
| 2099 | for r in routes_2: |
| 2100 | r.remove_vpp_config() |
| 2101 | |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2102 | # remove peers |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2103 | for p in peers_1: |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2104 | self.assertTrue(p.query_vpp_config()) |
| 2105 | p.remove_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2106 | for p in peers_2: |
| 2107 | self.assertTrue(p.query_vpp_config()) |
| 2108 | p.remove_vpp_config() |
Artem Glazychev | edca132 | 2020-08-31 17:12:30 +0700 | [diff] [blame] | 2109 | |
| 2110 | wg0.remove_vpp_config() |
Neale Ranns | d75a2d1 | 2020-09-10 08:49:10 +0000 | [diff] [blame] | 2111 | wg1.remove_vpp_config() |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2112 | |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2113 | def test_wg_multi_interface(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2114 | """Multi-tunnel on the same port""" |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2115 | port = 12500 |
| 2116 | |
| 2117 | # Create many wireguard interfaces |
| 2118 | NUM_IFS = 4 |
| 2119 | self.pg1.generate_remote_hosts(NUM_IFS) |
| 2120 | self.pg1.configure_ipv4_neighbors() |
| 2121 | self.pg0.generate_remote_hosts(NUM_IFS) |
| 2122 | self.pg0.configure_ipv4_neighbors() |
| 2123 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 2124 | self.pg_enable_capture(self.pg_interfaces) |
| 2125 | self.pg_start() |
| 2126 | |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2127 | # Create interfaces with a peer on each |
| 2128 | peers = [] |
| 2129 | routes = [] |
| 2130 | wg_ifs = [] |
| 2131 | for i in range(NUM_IFS): |
| 2132 | # Use the same port for each interface |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2133 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2134 | wg0.admin_up() |
| 2135 | wg0.config_ip4() |
| 2136 | wg_ifs.append(wg0) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2137 | peers.append( |
| 2138 | VppWgPeer( |
| 2139 | self, |
| 2140 | wg0, |
| 2141 | self.pg1.remote_hosts[i].ip4, |
| 2142 | port + 1 + i, |
| 2143 | ["10.0.%d.0/24" % i], |
| 2144 | ).add_vpp_config() |
| 2145 | ) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2146 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2147 | routes.append( |
| 2148 | VppIpRoute( |
| 2149 | self, |
| 2150 | "10.0.%d.0" % i, |
| 2151 | 24, |
| 2152 | [VppRoutePath("10.0.%d.4" % i, wg0.sw_if_index)], |
| 2153 | ).add_vpp_config() |
| 2154 | ) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2155 | |
| 2156 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_IFS) |
| 2157 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 2158 | # skip the first automatic handshake |
| 2159 | self.pg1.get_capture(NUM_IFS, timeout=HANDSHAKE_JITTER) |
| 2160 | |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2161 | for i in range(NUM_IFS): |
| 2162 | # send a valid handsake init for which we expect a response |
| 2163 | p = peers[i].mk_handshake(self.pg1) |
| 2164 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 2165 | peers[i].consume_response(rx[0]) |
| 2166 | |
| 2167 | # send a data packet from the peer through the tunnel |
| 2168 | # this completes the handshake |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2169 | p = ( |
| 2170 | IP(src="10.0.%d.4" % i, dst=self.pg0.remote_hosts[i].ip4, ttl=20) |
| 2171 | / UDP(sport=222, dport=223) |
| 2172 | / Raw() |
| 2173 | ) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2174 | d = peers[i].encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2175 | p = peers[i].mk_tunnel_header(self.pg1) / ( |
| 2176 | Wireguard(message_type=4, reserved_zero=0) |
| 2177 | / WireguardTransport( |
| 2178 | receiver_index=peers[i].sender, |
| 2179 | counter=0, |
| 2180 | encrypted_encapsulated_packet=d, |
| 2181 | ) |
| 2182 | ) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2183 | rxs = self.send_and_expect(self.pg1, [p], self.pg0) |
| 2184 | for rx in rxs: |
| 2185 | self.assertEqual(rx[IP].dst, self.pg0.remote_hosts[i].ip4) |
| 2186 | self.assertEqual(rx[IP].ttl, 19) |
| 2187 | |
| 2188 | # send a packets that are routed into the tunnel |
| 2189 | for i in range(NUM_IFS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2190 | p = ( |
| 2191 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2192 | / IP(src=self.pg0.remote_hosts[i].ip4, dst="10.0.%d.4" % i) |
| 2193 | / UDP(sport=555, dport=556) |
| 2194 | / Raw(b"\x00" * 80) |
| 2195 | ) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2196 | |
| 2197 | rxs = self.send_and_expect(self.pg0, p * 64, self.pg1) |
| 2198 | |
| 2199 | for rx in rxs: |
| 2200 | rx = IP(peers[i].decrypt_transport(rx)) |
| 2201 | |
| 2202 | # check the oringial packet is present |
| 2203 | self.assertEqual(rx[IP].dst, p[IP].dst) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2204 | self.assertEqual(rx[IP].ttl, p[IP].ttl - 1) |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2205 | |
| 2206 | # send packets into the tunnel |
| 2207 | for i in range(NUM_IFS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2208 | p = [ |
| 2209 | ( |
| 2210 | peers[i].mk_tunnel_header(self.pg1) |
| 2211 | / Wireguard(message_type=4, reserved_zero=0) |
| 2212 | / WireguardTransport( |
| 2213 | receiver_index=peers[i].sender, |
| 2214 | counter=ii + 1, |
| 2215 | encrypted_encapsulated_packet=peers[i].encrypt_transport( |
| 2216 | ( |
| 2217 | IP( |
| 2218 | src="10.0.%d.4" % i, |
| 2219 | dst=self.pg0.remote_hosts[i].ip4, |
| 2220 | ttl=20, |
| 2221 | ) |
| 2222 | / UDP(sport=222, dport=223) |
| 2223 | / Raw() |
| 2224 | ) |
| 2225 | ), |
| 2226 | ) |
| 2227 | ) |
| 2228 | for ii in range(64) |
| 2229 | ] |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2230 | |
| 2231 | rxs = self.send_and_expect(self.pg1, p, self.pg0) |
| 2232 | |
| 2233 | for rx in rxs: |
| 2234 | self.assertEqual(rx[IP].dst, self.pg0.remote_hosts[i].ip4) |
| 2235 | self.assertEqual(rx[IP].ttl, 19) |
| 2236 | |
| 2237 | for r in routes: |
| 2238 | r.remove_vpp_config() |
| 2239 | for p in peers: |
| 2240 | p.remove_vpp_config() |
| 2241 | for i in wg_ifs: |
| 2242 | i.remove_vpp_config() |
| 2243 | |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2244 | def test_wg_event(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2245 | """Test events""" |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2246 | port = 12600 |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2247 | ESTABLISHED_FLAG = ( |
| 2248 | VppEnum.vl_api_wireguard_peer_flags_t.WIREGUARD_PEER_ESTABLISHED |
| 2249 | ) |
| 2250 | DEAD_FLAG = VppEnum.vl_api_wireguard_peer_flags_t.WIREGUARD_PEER_STATUS_DEAD |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2251 | |
| 2252 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2253 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2254 | wg1 = VppWgInterface(self, self.pg2.local_ip4, port + 1).add_vpp_config() |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2255 | wg0.admin_up() |
| 2256 | wg1.admin_up() |
| 2257 | |
| 2258 | # Check peer counter |
| 2259 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 0) |
| 2260 | |
| 2261 | self.pg_enable_capture(self.pg_interfaces) |
| 2262 | self.pg_start() |
| 2263 | |
| 2264 | # Create peers |
| 2265 | NUM_PEERS = 2 |
| 2266 | self.pg2.generate_remote_hosts(NUM_PEERS) |
| 2267 | self.pg2.configure_ipv4_neighbors() |
| 2268 | self.pg1.generate_remote_hosts(NUM_PEERS) |
| 2269 | self.pg1.configure_ipv4_neighbors() |
| 2270 | |
| 2271 | peers_0 = [] |
| 2272 | peers_1 = [] |
| 2273 | routes_0 = [] |
| 2274 | routes_1 = [] |
| 2275 | for i in range(NUM_PEERS): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2276 | peers_0.append( |
| 2277 | VppWgPeer( |
| 2278 | self, |
| 2279 | wg0, |
| 2280 | self.pg1.remote_hosts[i].ip4, |
| 2281 | port + 1 + i, |
| 2282 | ["10.0.%d.4/32" % i], |
| 2283 | ).add_vpp_config() |
| 2284 | ) |
| 2285 | routes_0.append( |
| 2286 | VppIpRoute( |
| 2287 | self, |
| 2288 | "10.0.%d.4" % i, |
| 2289 | 32, |
| 2290 | [VppRoutePath(self.pg1.remote_hosts[i].ip4, wg0.sw_if_index)], |
| 2291 | ).add_vpp_config() |
| 2292 | ) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2293 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2294 | peers_1.append( |
| 2295 | VppWgPeer( |
| 2296 | self, |
| 2297 | wg1, |
| 2298 | self.pg2.remote_hosts[i].ip4, |
| 2299 | port + 100 + i, |
| 2300 | ["10.100.%d.4/32" % i], |
| 2301 | ).add_vpp_config() |
| 2302 | ) |
| 2303 | routes_1.append( |
| 2304 | VppIpRoute( |
| 2305 | self, |
| 2306 | "10.100.%d.4" % i, |
| 2307 | 32, |
| 2308 | [VppRoutePath(self.pg2.remote_hosts[i].ip4, wg1.sw_if_index)], |
| 2309 | ).add_vpp_config() |
| 2310 | ) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2311 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2312 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_PEERS * 2) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2313 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 2314 | # skip the first automatic handshake |
| 2315 | self.pg1.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER) |
| 2316 | self.pg2.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER) |
| 2317 | |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2318 | # Want events from the first perr of wg0 |
| 2319 | # and from all wg1 peers |
| 2320 | peers_0[0].want_events() |
| 2321 | wg1.want_events() |
| 2322 | |
| 2323 | for i in range(NUM_PEERS): |
Artem Glazychev | 4d290c3 | 2023-01-24 15:34:00 +0700 | [diff] [blame] | 2324 | # wg0 peers: send a valid handsake init for which we expect a response |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2325 | p = peers_0[i].mk_handshake(self.pg1) |
| 2326 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 2327 | peers_0[i].consume_response(rx[0]) |
Artem Glazychev | 4d290c3 | 2023-01-24 15:34:00 +0700 | [diff] [blame] | 2328 | |
| 2329 | # wg0 peers: send empty packet, it means successful connection (WIREGUARD_PEER_ESTABLISHED) |
| 2330 | keepalive = peers_0[i].encrypt_transport(0) |
| 2331 | p = peers_0[i].mk_tunnel_header(self.pg1) / ( |
| 2332 | Wireguard(message_type=4, reserved_zero=0) |
| 2333 | / WireguardTransport( |
| 2334 | receiver_index=peers_0[i].sender, |
| 2335 | counter=0, |
| 2336 | encrypted_encapsulated_packet=keepalive, |
| 2337 | ) |
| 2338 | ) |
| 2339 | self.send_and_assert_no_replies(self.pg1, [p]) |
| 2340 | |
| 2341 | # wg0 peers: wait for established flag |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2342 | if i == 0: |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2343 | peers_0[0].wait_event(ESTABLISHED_FLAG) |
| 2344 | |
Artem Glazychev | 4d290c3 | 2023-01-24 15:34:00 +0700 | [diff] [blame] | 2345 | # wg1 peers: send a valid handsake init for which we expect a response |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2346 | p = peers_1[i].mk_handshake(self.pg2) |
| 2347 | rx = self.send_and_expect(self.pg2, [p], self.pg2) |
| 2348 | peers_1[i].consume_response(rx[0]) |
| 2349 | |
Artem Glazychev | 4d290c3 | 2023-01-24 15:34:00 +0700 | [diff] [blame] | 2350 | # wg1 peers: send empty packet, it means successful connection (WIREGUARD_PEER_ESTABLISHED) |
| 2351 | keepalive = peers_1[i].encrypt_transport(0) |
| 2352 | p = peers_1[i].mk_tunnel_header(self.pg2) / ( |
| 2353 | Wireguard(message_type=4, reserved_zero=0) |
| 2354 | / WireguardTransport( |
| 2355 | receiver_index=peers_1[i].sender, |
| 2356 | counter=0, |
| 2357 | encrypted_encapsulated_packet=keepalive, |
| 2358 | ) |
| 2359 | ) |
| 2360 | self.send_and_assert_no_replies(self.pg2, [p]) |
| 2361 | |
| 2362 | # wg1 peers: wait for established flag |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2363 | wg1.wait_events(ESTABLISHED_FLAG, [peers_1[0].index, peers_1[1].index]) |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2364 | |
| 2365 | # remove routes |
| 2366 | for r in routes_0: |
| 2367 | r.remove_vpp_config() |
| 2368 | for r in routes_1: |
| 2369 | r.remove_vpp_config() |
| 2370 | |
| 2371 | # remove peers |
| 2372 | for i in range(NUM_PEERS): |
| 2373 | self.assertTrue(peers_0[i].query_vpp_config()) |
| 2374 | peers_0[i].remove_vpp_config() |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2375 | if i == 0: |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2376 | peers_0[i].wait_event(0) |
| 2377 | peers_0[i].wait_event(DEAD_FLAG) |
| 2378 | for p in peers_1: |
| 2379 | self.assertTrue(p.query_vpp_config()) |
| 2380 | p.remove_vpp_config() |
| 2381 | p.wait_event(0) |
| 2382 | p.wait_event(DEAD_FLAG) |
| 2383 | |
| 2384 | wg0.remove_vpp_config() |
| 2385 | wg1.remove_vpp_config() |
| 2386 | |
Alexander Chernavin | 31ce1a6 | 2022-09-01 13:42:56 +0000 | [diff] [blame] | 2387 | def test_wg_sending_handshake_when_admin_down(self): |
| 2388 | """Sending handshake when admin down""" |
| 2389 | port = 12323 |
| 2390 | |
| 2391 | # create wg interface |
| 2392 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2393 | wg0.config_ip4() |
| 2394 | |
| 2395 | # create a peer |
| 2396 | peer_1 = VppWgPeer( |
| 2397 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 2398 | ).add_vpp_config() |
| 2399 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2400 | |
| 2401 | self.pg_enable_capture(self.pg_interfaces) |
| 2402 | self.pg_start() |
| 2403 | |
| 2404 | # wait for the peer to send a handshake initiation |
| 2405 | # expect no handshakes |
| 2406 | for i in range(2): |
| 2407 | self.pg1.assert_nothing_captured(remark="handshake packet(s) sent") |
| 2408 | |
| 2409 | self.pg_enable_capture(self.pg_interfaces) |
| 2410 | self.pg_start() |
| 2411 | |
| 2412 | # administratively enable the wg interface |
| 2413 | # expect the peer to send a handshake initiation |
| 2414 | wg0.admin_up() |
| 2415 | rxs = self.pg1.get_capture(1, timeout=2) |
| 2416 | peer_1.consume_init(rxs[0], self.pg1) |
| 2417 | |
| 2418 | self.pg_enable_capture(self.pg_interfaces) |
| 2419 | self.pg_start() |
| 2420 | |
| 2421 | # administratively disable the wg interface |
| 2422 | # expect no handshakes |
| 2423 | wg0.admin_down() |
| 2424 | for i in range(6): |
| 2425 | self.pg1.assert_nothing_captured(remark="handshake packet(s) sent") |
| 2426 | |
| 2427 | # remove configs |
| 2428 | peer_1.remove_vpp_config() |
| 2429 | wg0.remove_vpp_config() |
| 2430 | |
| 2431 | def test_wg_sending_data_when_admin_down(self): |
| 2432 | """Sending data when admin down""" |
| 2433 | port = 12323 |
| 2434 | |
| 2435 | # create wg interface |
| 2436 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2437 | wg0.admin_up() |
| 2438 | wg0.config_ip4() |
| 2439 | |
| 2440 | self.pg_enable_capture(self.pg_interfaces) |
| 2441 | self.pg_start() |
| 2442 | |
| 2443 | # create a peer |
| 2444 | peer_1 = VppWgPeer( |
| 2445 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 2446 | ).add_vpp_config() |
| 2447 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2448 | |
| 2449 | # create a route to rewrite traffic into the wg interface |
| 2450 | r1 = VppIpRoute( |
| 2451 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 2452 | ).add_vpp_config() |
| 2453 | |
| 2454 | # wait for the peer to send a handshake initiation |
| 2455 | rxs = self.pg1.get_capture(1, timeout=2) |
| 2456 | |
| 2457 | # prepare and send a handshake response |
| 2458 | # expect a keepalive message |
| 2459 | resp = peer_1.consume_init(rxs[0], self.pg1) |
| 2460 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 2461 | |
| 2462 | # verify the keepalive message |
| 2463 | b = peer_1.decrypt_transport(rxs[0]) |
| 2464 | self.assertEqual(0, len(b)) |
| 2465 | |
| 2466 | # prepare and send a packet that will be rewritten into the wg interface |
| 2467 | # expect a data packet sent |
| 2468 | p = ( |
| 2469 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2470 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 2471 | / UDP(sport=555, dport=556) |
| 2472 | / Raw() |
| 2473 | ) |
| 2474 | rxs = self.send_and_expect(self.pg0, [p], self.pg1) |
| 2475 | |
| 2476 | # verify the data packet |
| 2477 | peer_1.validate_encapped(rxs, p) |
| 2478 | |
| 2479 | # administratively disable the wg interface |
| 2480 | wg0.admin_down() |
| 2481 | |
| 2482 | # send a packet that will be rewritten into the wg interface |
| 2483 | # expect no data packets sent |
| 2484 | self.send_and_assert_no_replies(self.pg0, [p]) |
| 2485 | |
| 2486 | # administratively enable the wg interface |
| 2487 | # expect the peer to send a handshake initiation |
| 2488 | wg0.admin_up() |
| 2489 | peer_1.noise_reset() |
| 2490 | rxs = self.pg1.get_capture(1, timeout=2) |
| 2491 | resp = peer_1.consume_init(rxs[0], self.pg1) |
| 2492 | |
| 2493 | # send a packet that will be rewritten into the wg interface |
| 2494 | # expect no data packets sent because the peer is not initiated |
| 2495 | self.send_and_assert_no_replies(self.pg0, [p]) |
| 2496 | self.assertEqual( |
| 2497 | self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error) |
| 2498 | ) |
| 2499 | |
| 2500 | # send a handshake response and expect a keepalive message |
| 2501 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 2502 | |
| 2503 | # verify the keepalive message |
| 2504 | b = peer_1.decrypt_transport(rxs[0]) |
| 2505 | self.assertEqual(0, len(b)) |
| 2506 | |
| 2507 | # send a packet that will be rewritten into the wg interface |
| 2508 | # expect a data packet sent |
| 2509 | rxs = self.send_and_expect(self.pg0, [p], self.pg1) |
| 2510 | |
| 2511 | # verify the data packet |
| 2512 | peer_1.validate_encapped(rxs, p) |
| 2513 | |
| 2514 | # remove configs |
| 2515 | r1.remove_vpp_config() |
| 2516 | peer_1.remove_vpp_config() |
| 2517 | wg0.remove_vpp_config() |
| 2518 | |
Alexander Chernavin | f2b6edb | 2023-03-29 16:09:37 +0000 | [diff] [blame] | 2519 | def _test_wg_large_packet_tmpl(self, is_async, is_ip6): |
| 2520 | self.vapi.wg_set_async_mode(is_async) |
| 2521 | port = 12323 |
| 2522 | |
| 2523 | # create wg interface |
| 2524 | if is_ip6: |
| 2525 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 2526 | wg0.admin_up() |
| 2527 | wg0.config_ip6() |
| 2528 | else: |
| 2529 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2530 | wg0.admin_up() |
| 2531 | wg0.config_ip4() |
| 2532 | |
| 2533 | self.pg_enable_capture(self.pg_interfaces) |
| 2534 | self.pg_start() |
| 2535 | |
| 2536 | # create a peer |
| 2537 | if is_ip6: |
| 2538 | peer_1 = VppWgPeer( |
| 2539 | self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"] |
| 2540 | ).add_vpp_config() |
| 2541 | else: |
| 2542 | peer_1 = VppWgPeer( |
| 2543 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 2544 | ).add_vpp_config() |
| 2545 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2546 | |
| 2547 | # create a route to rewrite traffic into the wg interface |
| 2548 | if is_ip6: |
| 2549 | r1 = VppIpRoute( |
| 2550 | self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)] |
| 2551 | ).add_vpp_config() |
| 2552 | else: |
| 2553 | r1 = VppIpRoute( |
| 2554 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 2555 | ).add_vpp_config() |
| 2556 | |
| 2557 | # wait for the peer to send a handshake initiation |
| 2558 | rxs = self.pg1.get_capture(1, timeout=2) |
| 2559 | |
| 2560 | # prepare and send a handshake response |
| 2561 | # expect a keepalive message |
| 2562 | resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6) |
| 2563 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 2564 | |
| 2565 | # verify the keepalive message |
| 2566 | b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6) |
| 2567 | self.assertEqual(0, len(b)) |
| 2568 | |
| 2569 | # prepare and send data packets |
| 2570 | # expect to receive them decrypted |
| 2571 | if is_ip6: |
| 2572 | ip_header = IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20) |
| 2573 | else: |
| 2574 | ip_header = IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 2575 | packet_len_opts = ( |
| 2576 | 2500, # two buffers |
| 2577 | 1500, # one buffer |
| 2578 | 4500, # three buffers |
| 2579 | 1910 if is_ip6 else 1950, # auth tag is not contiguous |
| 2580 | ) |
| 2581 | txs = [] |
| 2582 | for l in packet_len_opts: |
| 2583 | txs.append( |
| 2584 | peer_1.mk_tunnel_header(self.pg1, is_ip6=is_ip6) |
| 2585 | / Wireguard(message_type=4, reserved_zero=0) |
| 2586 | / WireguardTransport( |
| 2587 | receiver_index=peer_1.sender, |
| 2588 | counter=len(txs), |
| 2589 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
| 2590 | ip_header / UDP(sport=222, dport=223) / Raw(b"\xfe" * l) |
| 2591 | ), |
| 2592 | ) |
| 2593 | ) |
| 2594 | rxs = self.send_and_expect(self.pg1, txs, self.pg0) |
| 2595 | |
| 2596 | # verify decrypted packets |
| 2597 | for i, l in enumerate(packet_len_opts): |
| 2598 | if is_ip6: |
| 2599 | self.assertEqual(rxs[i][IPv6].dst, self.pg0.remote_ip6) |
| 2600 | self.assertEqual(rxs[i][IPv6].hlim, ip_header.hlim - 1) |
| 2601 | else: |
| 2602 | self.assertEqual(rxs[i][IP].dst, self.pg0.remote_ip4) |
| 2603 | self.assertEqual(rxs[i][IP].ttl, ip_header.ttl - 1) |
| 2604 | self.assertEqual(len(rxs[i][Raw]), l) |
| 2605 | self.assertEqual(bytes(rxs[i][Raw]), b"\xfe" * l) |
| 2606 | |
| 2607 | # prepare and send packets that will be rewritten into the wg interface |
| 2608 | # expect data packets sent |
| 2609 | if is_ip6: |
| 2610 | ip_header = IPv6(src=self.pg0.remote_ip6, dst="1::3:2") |
| 2611 | else: |
| 2612 | ip_header = IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 2613 | packet_len_opts = ( |
| 2614 | 2500, # two buffers |
| 2615 | 1500, # one buffer |
| 2616 | 4500, # three buffers |
| 2617 | 1980 if is_ip6 else 2000, # no free space to write auth tag |
| 2618 | ) |
| 2619 | txs = [] |
| 2620 | for l in packet_len_opts: |
| 2621 | txs.append( |
| 2622 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2623 | / ip_header |
| 2624 | / UDP(sport=555, dport=556) |
| 2625 | / Raw(b"\xfe" * l) |
| 2626 | ) |
| 2627 | rxs = self.send_and_expect(self.pg0, txs, self.pg1) |
| 2628 | |
| 2629 | # verify the data packets |
| 2630 | rxs_decrypted = peer_1.validate_encapped( |
| 2631 | rxs, ip_header, is_tunnel_ip6=is_ip6, is_transport_ip6=is_ip6 |
| 2632 | ) |
| 2633 | |
| 2634 | for i, l in enumerate(packet_len_opts): |
| 2635 | self.assertEqual(len(rxs_decrypted[i][Raw]), l) |
| 2636 | self.assertEqual(bytes(rxs_decrypted[i][Raw]), b"\xfe" * l) |
| 2637 | |
| 2638 | # remove configs |
| 2639 | r1.remove_vpp_config() |
| 2640 | peer_1.remove_vpp_config() |
| 2641 | wg0.remove_vpp_config() |
| 2642 | |
| 2643 | def test_wg_large_packet_v4_sync(self): |
| 2644 | """Large packet (v4, sync)""" |
| 2645 | self._test_wg_large_packet_tmpl(is_async=False, is_ip6=False) |
| 2646 | |
| 2647 | def test_wg_large_packet_v6_sync(self): |
| 2648 | """Large packet (v6, sync)""" |
| 2649 | self._test_wg_large_packet_tmpl(is_async=False, is_ip6=True) |
| 2650 | |
| 2651 | def test_wg_large_packet_v4_async(self): |
| 2652 | """Large packet (v4, async)""" |
| 2653 | self._test_wg_large_packet_tmpl(is_async=True, is_ip6=False) |
| 2654 | |
| 2655 | def test_wg_large_packet_v6_async(self): |
| 2656 | """Large packet (v6, async)""" |
| 2657 | self._test_wg_large_packet_tmpl(is_async=True, is_ip6=True) |
| 2658 | |
| 2659 | def test_wg_lack_of_buf_headroom(self): |
| 2660 | """Lack of buffer's headroom (v6 vxlan over v6 wg)""" |
| 2661 | port = 12323 |
| 2662 | |
| 2663 | # create wg interface |
| 2664 | wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config() |
| 2665 | wg0.admin_up() |
| 2666 | wg0.config_ip6() |
| 2667 | |
| 2668 | self.pg_enable_capture(self.pg_interfaces) |
| 2669 | self.pg_start() |
| 2670 | |
| 2671 | # create a peer |
| 2672 | peer_1 = VppWgPeer( |
| 2673 | self, wg0, self.pg1.remote_ip6, port + 1, ["::/0"] |
| 2674 | ).add_vpp_config() |
| 2675 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2676 | |
| 2677 | # create a route to enable communication between wg interface addresses |
| 2678 | r1 = VppIpRoute( |
| 2679 | self, wg0.remote_ip6, 128, [VppRoutePath("0.0.0.0", wg0.sw_if_index)] |
| 2680 | ).add_vpp_config() |
| 2681 | |
| 2682 | # wait for the peer to send a handshake initiation |
| 2683 | rxs = self.pg1.get_capture(1, timeout=2) |
| 2684 | |
| 2685 | # prepare and send a handshake response |
| 2686 | # expect a keepalive message |
| 2687 | resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=True) |
| 2688 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 2689 | |
| 2690 | # verify the keepalive message |
| 2691 | b = peer_1.decrypt_transport(rxs[0], is_ip6=True) |
| 2692 | self.assertEqual(0, len(b)) |
| 2693 | |
| 2694 | # create vxlan interface over the wg interface |
| 2695 | vxlan0 = VppVxlanTunnel(self, src=wg0.local_ip6, dst=wg0.remote_ip6, vni=1111) |
| 2696 | vxlan0.add_vpp_config() |
| 2697 | |
| 2698 | # create bridge domain |
| 2699 | bd1 = VppBridgeDomain(self, bd_id=1) |
| 2700 | bd1.add_vpp_config() |
| 2701 | |
| 2702 | # add the vxlan interface and pg0 to the bridge domain |
| 2703 | bd1_ports = ( |
| 2704 | VppBridgeDomainPort(self, bd1, vxlan0).add_vpp_config(), |
| 2705 | VppBridgeDomainPort(self, bd1, self.pg0).add_vpp_config(), |
| 2706 | ) |
| 2707 | |
| 2708 | # prepare and send packets that will be rewritten into the vxlan interface |
| 2709 | # expect they to be rewritten into the wg interface then and data packets sent |
| 2710 | tx = ( |
| 2711 | Ether(dst="00:00:00:00:00:01", src="00:00:00:00:00:02") |
| 2712 | / IPv6(src="::1", dst="::2", hlim=20) |
| 2713 | / UDP(sport=1111, dport=1112) |
| 2714 | / Raw(b"\xfe" * 1900) |
| 2715 | ) |
| 2716 | rxs = self.send_and_expect(self.pg0, [tx] * 5, self.pg1) |
| 2717 | |
| 2718 | # verify the data packet |
| 2719 | for rx in rxs: |
| 2720 | rx_decrypted = IPv6(peer_1.decrypt_transport(rx, is_ip6=True)) |
| 2721 | |
| 2722 | self.assertEqual(rx_decrypted[VXLAN].vni, vxlan0.vni) |
| 2723 | inner = rx_decrypted[VXLAN].payload |
| 2724 | |
| 2725 | # check the original packet is present |
| 2726 | self.assertEqual(inner[IPv6].dst, tx[IPv6].dst) |
| 2727 | self.assertEqual(inner[IPv6].hlim, tx[IPv6].hlim) |
| 2728 | self.assertEqual(len(inner[Raw]), len(tx[Raw])) |
| 2729 | self.assertEqual(bytes(inner[Raw]), bytes(tx[Raw])) |
| 2730 | |
| 2731 | # remove configs |
| 2732 | for bdp in bd1_ports: |
| 2733 | bdp.remove_vpp_config() |
| 2734 | bd1.remove_vpp_config() |
| 2735 | vxlan0.remove_vpp_config() |
| 2736 | r1.remove_vpp_config() |
| 2737 | peer_1.remove_vpp_config() |
| 2738 | wg0.remove_vpp_config() |
| 2739 | |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2740 | |
Dave Wallace | 8a0a9d2 | 2022-10-04 22:02:49 -0400 | [diff] [blame] | 2741 | @tag_fixme_vpp_debug |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2742 | class WireguardHandoffTests(TestWg): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2743 | """Wireguard Tests in multi worker setup""" |
| 2744 | |
Klement Sekera | 8d81502 | 2021-03-15 16:58:10 +0100 | [diff] [blame] | 2745 | vpp_worker_count = 2 |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2746 | |
| 2747 | def test_wg_peer_init(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2748 | """Handoff""" |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2749 | |
Artem Glazychev | 7dd3b5b | 2021-06-03 20:11:54 +0700 | [diff] [blame] | 2750 | port = 12383 |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2751 | |
| 2752 | # Create interfaces |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2753 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2754 | wg0.admin_up() |
| 2755 | wg0.config_ip4() |
| 2756 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 2757 | self.pg_enable_capture(self.pg_interfaces) |
| 2758 | self.pg_start() |
| 2759 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2760 | peer_1 = VppWgPeer( |
| 2761 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.2.0/24", "10.11.3.0/24"] |
| 2762 | ).add_vpp_config() |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2763 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2764 | |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2765 | r1 = VppIpRoute( |
| 2766 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 2767 | ).add_vpp_config() |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 2768 | |
Artem Glazychev | 53badfc | 2023-01-24 16:10:29 +0700 | [diff] [blame] | 2769 | # skip the first automatic handshake |
| 2770 | self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER) |
| 2771 | |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2772 | # send a valid handsake init for which we expect a response |
| 2773 | p = peer_1.mk_handshake(self.pg1) |
| 2774 | |
| 2775 | rx = self.send_and_expect(self.pg1, [p], self.pg1) |
| 2776 | |
| 2777 | peer_1.consume_response(rx[0]) |
| 2778 | |
| 2779 | # send a data packet from the peer through the tunnel |
| 2780 | # this completes the handshake and pins the peer to worker 0 |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2781 | p = ( |
| 2782 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 2783 | / UDP(sport=222, dport=223) |
| 2784 | / Raw() |
| 2785 | ) |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2786 | d = peer_1.encrypt_transport(p) |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2787 | p = peer_1.mk_tunnel_header(self.pg1) / ( |
| 2788 | Wireguard(message_type=4, reserved_zero=0) |
| 2789 | / WireguardTransport( |
| 2790 | receiver_index=peer_1.sender, counter=0, encrypted_encapsulated_packet=d |
| 2791 | ) |
| 2792 | ) |
| 2793 | rxs = self.send_and_expect(self.pg1, [p], self.pg0, worker=0) |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2794 | |
| 2795 | for rx in rxs: |
| 2796 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 2797 | self.assertEqual(rx[IP].ttl, 19) |
| 2798 | |
| 2799 | # send a packets that are routed into the tunnel |
| 2800 | # and pins the peer tp worker 1 |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2801 | pe = ( |
| 2802 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2803 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 2804 | / UDP(sport=555, dport=556) |
| 2805 | / Raw(b"\x00" * 80) |
| 2806 | ) |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2807 | rxs = self.send_and_expect(self.pg0, pe * 255, self.pg1, worker=1) |
| 2808 | peer_1.validate_encapped(rxs, pe) |
| 2809 | |
| 2810 | # send packets into the tunnel, from the other worker |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2811 | p = [ |
| 2812 | ( |
| 2813 | peer_1.mk_tunnel_header(self.pg1) |
| 2814 | / Wireguard(message_type=4, reserved_zero=0) |
| 2815 | / WireguardTransport( |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2816 | receiver_index=peer_1.sender, |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2817 | counter=ii + 1, |
Artem Glazychev | dd630d1 | 2021-06-11 00:10:00 +0700 | [diff] [blame] | 2818 | encrypted_encapsulated_packet=peer_1.encrypt_transport( |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2819 | ( |
| 2820 | IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) |
| 2821 | / UDP(sport=222, dport=223) |
| 2822 | / Raw() |
| 2823 | ) |
| 2824 | ), |
| 2825 | ) |
| 2826 | ) |
| 2827 | for ii in range(255) |
| 2828 | ] |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2829 | |
| 2830 | rxs = self.send_and_expect(self.pg1, p, self.pg0, worker=1) |
| 2831 | |
| 2832 | for rx in rxs: |
| 2833 | self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) |
| 2834 | self.assertEqual(rx[IP].ttl, 19) |
| 2835 | |
| 2836 | # send a packets that are routed into the tunnel |
Alexander Chernavin | 522a5b3 | 2022-09-26 15:11:27 +0000 | [diff] [blame] | 2837 | # from worker 0 |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2838 | rxs = self.send_and_expect(self.pg0, pe * 255, self.pg1, worker=0) |
| 2839 | |
| 2840 | peer_1.validate_encapped(rxs, pe) |
| 2841 | |
Artem Glazychev | de3caf3 | 2021-05-20 12:33:52 +0700 | [diff] [blame] | 2842 | r1.remove_vpp_config() |
Artem Glazychev | 8eb6940 | 2020-09-14 11:36:01 +0700 | [diff] [blame] | 2843 | peer_1.remove_vpp_config() |
| 2844 | wg0.remove_vpp_config() |
Artem Glazychev | 9e24f7e | 2021-05-25 12:06:42 +0700 | [diff] [blame] | 2845 | |
| 2846 | @unittest.skip("test disabled") |
| 2847 | def test_wg_multi_interface(self): |
Klement Sekera | d9b0c6f | 2022-04-26 19:02:15 +0200 | [diff] [blame] | 2848 | """Multi-tunnel on the same port""" |
Alexander Chernavin | ae60538 | 2022-08-17 08:30:43 +0000 | [diff] [blame] | 2849 | |
| 2850 | |
| 2851 | class TestWgFIB(VppTestCase): |
| 2852 | """Wireguard FIB Test Case""" |
| 2853 | |
| 2854 | @classmethod |
| 2855 | def setUpClass(cls): |
| 2856 | super(TestWgFIB, cls).setUpClass() |
| 2857 | |
| 2858 | @classmethod |
| 2859 | def tearDownClass(cls): |
| 2860 | super(TestWgFIB, cls).tearDownClass() |
| 2861 | |
| 2862 | def setUp(self): |
| 2863 | super(TestWgFIB, self).setUp() |
| 2864 | |
| 2865 | self.create_pg_interfaces(range(2)) |
| 2866 | |
| 2867 | for i in self.pg_interfaces: |
| 2868 | i.admin_up() |
| 2869 | i.config_ip4() |
| 2870 | |
| 2871 | def tearDown(self): |
| 2872 | for i in self.pg_interfaces: |
| 2873 | i.unconfig_ip4() |
| 2874 | i.admin_down() |
| 2875 | super(TestWgFIB, self).tearDown() |
| 2876 | |
| 2877 | def test_wg_fib_tracking(self): |
| 2878 | """FIB tracking""" |
| 2879 | port = 12323 |
| 2880 | |
| 2881 | # create wg interface |
| 2882 | wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config() |
| 2883 | wg0.admin_up() |
| 2884 | wg0.config_ip4() |
| 2885 | |
| 2886 | self.pg_enable_capture(self.pg_interfaces) |
| 2887 | self.pg_start() |
| 2888 | |
| 2889 | # create a peer |
| 2890 | peer_1 = VppWgPeer( |
| 2891 | self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"] |
| 2892 | ).add_vpp_config() |
| 2893 | self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) |
| 2894 | |
| 2895 | # create a route to rewrite traffic into the wg interface |
| 2896 | r1 = VppIpRoute( |
| 2897 | self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)] |
| 2898 | ).add_vpp_config() |
| 2899 | |
| 2900 | # resolve ARP and expect the adjacency to update |
| 2901 | self.pg1.resolve_arp() |
| 2902 | |
| 2903 | # wait for the peer to send a handshake initiation |
| 2904 | rxs = self.pg1.get_capture(2, timeout=6) |
| 2905 | |
| 2906 | # prepare and send a handshake response |
| 2907 | # expect a keepalive message |
| 2908 | resp = peer_1.consume_init(rxs[1], self.pg1) |
| 2909 | rxs = self.send_and_expect(self.pg1, [resp], self.pg1) |
| 2910 | |
| 2911 | # verify the keepalive message |
| 2912 | b = peer_1.decrypt_transport(rxs[0]) |
| 2913 | self.assertEqual(0, len(b)) |
| 2914 | |
| 2915 | # prepare and send a packet that will be rewritten into the wg interface |
Alexander Chernavin | 31ce1a6 | 2022-09-01 13:42:56 +0000 | [diff] [blame] | 2916 | # expect a data packet sent |
Alexander Chernavin | ae60538 | 2022-08-17 08:30:43 +0000 | [diff] [blame] | 2917 | p = ( |
| 2918 | Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) |
| 2919 | / IP(src=self.pg0.remote_ip4, dst="10.11.3.2") |
| 2920 | / UDP(sport=555, dport=556) |
| 2921 | / Raw() |
| 2922 | ) |
| 2923 | rxs = self.send_and_expect(self.pg0, [p], self.pg1) |
| 2924 | |
| 2925 | # verify the data packet |
| 2926 | peer_1.validate_encapped(rxs, p) |
| 2927 | |
| 2928 | # remove configs |
| 2929 | r1.remove_vpp_config() |
| 2930 | peer_1.remove_vpp_config() |
| 2931 | wg0.remove_vpp_config() |