diff options
Diffstat (limited to 'src/plugins/wireguard')
| -rwxr-xr-x | src/plugins/wireguard/test/test_wireguard.py | 748 |
1 files changed, 0 insertions, 748 deletions
diff --git a/src/plugins/wireguard/test/test_wireguard.py b/src/plugins/wireguard/test/test_wireguard.py deleted file mode 100755 index edc305b1336..00000000000 --- a/src/plugins/wireguard/test/test_wireguard.py +++ /dev/null @@ -1,748 +0,0 @@ -#!/usr/bin/env python3 -""" Wg tests """ - -import datetime -import base64 - -from hashlib import blake2s -from scapy.packet import Packet -from scapy.packet import Raw -from scapy.layers.l2 import Ether, ARP -from scapy.layers.inet import IP, UDP -from scapy.contrib.wireguard import Wireguard, WireguardResponse, \ - WireguardInitiation, WireguardTransport -from cryptography.hazmat.primitives.asymmetric.x25519 import \ - X25519PrivateKey, X25519PublicKey -from cryptography.hazmat.primitives.serialization import Encoding, \ - PrivateFormat, PublicFormat, NoEncryption -from cryptography.hazmat.primitives.hashes import BLAKE2s, Hash -from cryptography.hazmat.primitives.hmac import HMAC -from cryptography.hazmat.backends import default_backend -from noise.connection import NoiseConnection, Keypair - -from vpp_ipip_tun_interface import VppIpIpTunInterface -from vpp_interface import VppInterface -from vpp_object import VppObject -from framework import VppTestCase -from re import compile -import unittest - -""" TestWg is a subclass of VPPTestCase classes. - -Wg test. - -""" - - -def private_key_bytes(k): - return k.private_bytes(Encoding.Raw, - PrivateFormat.Raw, - NoEncryption()) - - -def public_key_bytes(k): - return k.public_bytes(Encoding.Raw, - PublicFormat.Raw) - - -class VppWgInterface(VppInterface): - """ - VPP WireGuard interface - """ - - def __init__(self, test, src, port): - super(VppWgInterface, self).__init__(test) - - self.port = port - self.src = src - self.private_key = X25519PrivateKey.generate() - self.public_key = self.private_key.public_key() - - def public_key_bytes(self): - return public_key_bytes(self.public_key) - - def private_key_bytes(self): - return private_key_bytes(self.private_key) - - def add_vpp_config(self): - r = self.test.vapi.wireguard_interface_create(interface={ - 'user_instance': 0xffffffff, - 'port': self.port, - 'src_ip': self.src, - 'private_key': private_key_bytes(self.private_key), - 'generate_key': False - }) - self.set_sw_if_index(r.sw_if_index) - self.test.registry.register(self, self.test.logger) - return self - - def remove_vpp_config(self): - self.test.vapi.wireguard_interface_delete( - sw_if_index=self._sw_if_index) - - def query_vpp_config(self): - ts = self.test.vapi.wireguard_interface_dump(sw_if_index=0xffffffff) - for t in ts: - if t.interface.sw_if_index == self._sw_if_index and \ - str(t.interface.src_ip) == self.src and \ - t.interface.port == self.port and \ - t.interface.private_key == private_key_bytes(self.private_key): - return True - return False - - def __str__(self): - return self.object_id() - - def object_id(self): - return "wireguard-%d" % self._sw_if_index - - -def find_route(test, prefix, table_id=0): - routes = test.vapi.ip_route_dump(table_id, False) - - for e in routes: - if table_id == e.route.table_id \ - and str(e.route.prefix) == str(prefix): - return True - return False - - -NOISE_HANDSHAKE_NAME = b"Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s" -NOISE_IDENTIFIER_NAME = b"WireGuard v1 zx2c4 Jason@zx2c4.com" - - -class VppWgPeer(VppObject): - - def __init__(self, - test, - itf, - endpoint, - port, - allowed_ips, - persistent_keepalive=15): - self._test = test - self.itf = itf - self.endpoint = endpoint - self.port = port - self.allowed_ips = allowed_ips - self.persistent_keepalive = persistent_keepalive - - # remote peer's public - self.private_key = X25519PrivateKey.generate() - self.public_key = self.private_key.public_key() - - self.noise = NoiseConnection.from_name(NOISE_HANDSHAKE_NAME) - - def validate_routing(self): - for a in self.allowed_ips: - self._test.assertTrue(find_route(self._test, a)) - - def validate_no_routing(self): - for a in self.allowed_ips: - self._test.assertFalse(find_route(self._test, a)) - - def add_vpp_config(self): - rv = self._test.vapi.wireguard_peer_add( - peer={ - 'public_key': self.public_key_bytes(), - 'port': self.port, - 'endpoint': self.endpoint, - 'n_allowed_ips': len(self.allowed_ips), - 'allowed_ips': self.allowed_ips, - 'sw_if_index': self.itf.sw_if_index, - 'persistent_keepalive': self.persistent_keepalive}) - self.index = rv.peer_index - self.receiver_index = self.index + 1 - self._test.registry.register(self, self._test.logger) - self.validate_routing() - return self - - def remove_vpp_config(self): - self._test.vapi.wireguard_peer_remove(peer_index=self.index) - self.validate_no_routing() - - def object_id(self): - return ("wireguard-peer-%s" % self.index) - - def public_key_bytes(self): - return public_key_bytes(self.public_key) - - def query_vpp_config(self): - peers = self._test.vapi.wireguard_peers_dump() - - for p in peers: - if p.peer.public_key == self.public_key_bytes() and \ - p.peer.port == self.port and \ - str(p.peer.endpoint) == self.endpoint and \ - p.peer.sw_if_index == self.itf.sw_if_index and \ - len(self.allowed_ips) == p.peer.n_allowed_ips: - self.allowed_ips.sort() - p.peer.allowed_ips.sort() - - for (a1, a2) in zip(self.allowed_ips, p.peer.allowed_ips): - if str(a1) != str(a2): - return False - return True - return False - - def set_responder(self): - self.noise.set_as_responder() - - def mk_tunnel_header(self, tx_itf): - return (Ether(dst=tx_itf.local_mac, src=tx_itf.remote_mac) / - IP(src=self.endpoint, dst=self.itf.src) / - UDP(sport=self.port, dport=self.itf.port)) - - def noise_init(self, public_key=None): - self.noise.set_prologue(NOISE_IDENTIFIER_NAME) - self.noise.set_psks(psk=bytes(bytearray(32))) - - if not public_key: - public_key = self.itf.public_key - - # local/this private - self.noise.set_keypair_from_private_bytes( - Keypair.STATIC, - private_key_bytes(self.private_key)) - # remote's public - self.noise.set_keypair_from_public_bytes( - Keypair.REMOTE_STATIC, - public_key_bytes(public_key)) - - self.noise.start_handshake() - - def mk_handshake(self, tx_itf, public_key=None): - self.noise.set_as_initiator() - self.noise_init(public_key) - - p = (Wireguard() / WireguardInitiation()) - - p[Wireguard].message_type = 1 - p[Wireguard].reserved_zero = 0 - p[WireguardInitiation].sender_index = self.receiver_index - - # some random data for the message - # lifted from the noise protocol's wireguard example - now = datetime.datetime.now() - tai = struct.pack('!qi', 4611686018427387914 + int(now.timestamp()), - int(now.microsecond * 1e3)) - b = self.noise.write_message(payload=tai) - - # load noise into init message - p[WireguardInitiation].unencrypted_ephemeral = b[0:32] - p[WireguardInitiation].encrypted_static = b[32:80] - p[WireguardInitiation].encrypted_timestamp = b[80:108] - - # generate the mac1 hash - mac_key = blake2s(b'mac1----' + - self.itf.public_key_bytes()).digest() - p[WireguardInitiation].mac1 = blake2s(bytes(p)[0:116], - digest_size=16, - key=mac_key).digest() - p[WireguardInitiation].mac2 = bytearray(16) - - p = (self.mk_tunnel_header(tx_itf) / p) - - return p - - def verify_header(self, p): - self._test.assertEqual(p[IP].src, self.itf.src) - self._test.assertEqual(p[IP].dst, self.endpoint) - self._test.assertEqual(p[UDP].sport, self.itf.port) - self._test.assertEqual(p[UDP].dport, self.port) - self._test.assert_packet_checksums_valid(p) - - def consume_init(self, p, tx_itf): - self.noise.set_as_responder() - self.noise_init(self.itf.public_key) - self.verify_header(p) - - init = Wireguard(p[Raw]) - - self._test.assertEqual(init[Wireguard].message_type, 1) - self._test.assertEqual(init[Wireguard].reserved_zero, 0) - - self.sender = init[WireguardInitiation].sender_index - - # validate the hash - mac_key = blake2s(b'mac1----' + - public_key_bytes(self.public_key)).digest() - mac1 = blake2s(bytes(init)[0:-32], - digest_size=16, - key=mac_key).digest() - self._test.assertEqual(init[WireguardInitiation].mac1, mac1) - - # this passes only unencrypted_ephemeral, encrypted_static, - # encrypted_timestamp fields of the init - payload = self.noise.read_message(bytes(init)[8:-32]) - - # build the response - b = self.noise.write_message() - mac_key = blake2s(b'mac1----' + - public_key_bytes(self.itf.public_key)).digest() - resp = (Wireguard(message_type=2, reserved_zero=0) / - WireguardResponse(sender_index=self.receiver_index, - receiver_index=self.sender, - unencrypted_ephemeral=b[0:32], - encrypted_nothing=b[32:])) - mac1 = blake2s(bytes(resp)[:-32], - digest_size=16, - key=mac_key).digest() - resp[WireguardResponse].mac1 = mac1 - - resp = (self.mk_tunnel_header(tx_itf) / resp) - self._test.assertTrue(self.noise.handshake_finished) - - return resp - - def consume_response(self, p): - self.verify_header(p) - - resp = Wireguard(p[Raw]) - - self._test.assertEqual(resp[Wireguard].message_type, 2) - self._test.assertEqual(resp[Wireguard].reserved_zero, 0) - self._test.assertEqual(resp[WireguardResponse].receiver_index, - self.receiver_index) - - self.sender = resp[Wireguard].sender_index - - payload = self.noise.read_message(bytes(resp)[12:60]) - self._test.assertEqual(payload, b'') - self._test.assertTrue(self.noise.handshake_finished) - - def decrypt_transport(self, p): - self.verify_header(p) - - p = Wireguard(p[Raw]) - self._test.assertEqual(p[Wireguard].message_type, 4) - self._test.assertEqual(p[Wireguard].reserved_zero, 0) - self._test.assertEqual(p[WireguardTransport].receiver_index, - self.receiver_index) - - d = self.noise.decrypt( - p[WireguardTransport].encrypted_encapsulated_packet) - return d - - def encrypt_transport(self, p): - return self.noise.encrypt(bytes(p)) - - def validate_encapped(self, rxs, tx): - for rx in rxs: - rx = IP(self.decrypt_transport(rx)) - - # chech the oringial packet is present - self._test.assertEqual(rx[IP].dst, tx[IP].dst) - self._test.assertEqual(rx[IP].ttl, tx[IP].ttl-1) - - -class TestWg(VppTestCase): - """ Wireguard Test Case """ - - error_str = compile(r"Error") - - @classmethod - def setUpClass(cls): - super(TestWg, cls).setUpClass() - try: - cls.create_pg_interfaces(range(3)) - for i in cls.pg_interfaces: - i.admin_up() - i.config_ip4() - i.resolve_arp() - - except Exception: - super(TestWg, cls).tearDownClass() - raise - - @classmethod - def tearDownClass(cls): - super(TestWg, cls).tearDownClass() - - def test_wg_interface(self): - """ Simple interface creation """ - port = 12312 - - # Create interface - wg0 = VppWgInterface(self, - self.pg1.local_ip4, - port).add_vpp_config() - - self.logger.info(self.vapi.cli("sh int")) - - # delete interface - wg0.remove_vpp_config() - - def test_handshake_hash(self): - """ test hashing an init message """ - # a init packet generated by linux given the key below - h = "0100000098b9032b" \ - "55cc4b39e73c3d24" \ - "a2a1ab884b524a81" \ - "1808bb86640fb70d" \ - "e93154fec1879125" \ - "ab012624a27f0b75" \ - "c0a2582f438ddb5f" \ - "8e768af40b4ab444" \ - "02f9ff473e1b797e" \ - "80d39d93c5480c82" \ - "a3d4510f70396976" \ - "586fb67300a5167b" \ - "ae6ca3ff3dfd00eb" \ - "59be198810f5aa03" \ - "6abc243d2155ee4f" \ - "2336483900aef801" \ - "08752cd700000000" \ - "0000000000000000" \ - "00000000" - - b = bytearray.fromhex(h) - tgt = Wireguard(b) - - pubb = base64.b64decode("aRuHFTTxICIQNefp05oKWlJv3zgKxb8+WW7JJMh0jyM=") - pub = X25519PublicKey.from_public_bytes(pubb) - - self.assertEqual(pubb, public_key_bytes(pub)) - - # strip the macs and build a new packet - init = b[0:-32] - mac_key = blake2s(b'mac1----' + public_key_bytes(pub)).digest() - init += blake2s(init, - digest_size=16, - key=mac_key).digest() - init += b'\x00' * 16 - - act = Wireguard(init) - - self.assertEqual(tgt, act) - - def test_wg_peer_resp(self): - """ Send handshake response """ - wg_output_node_name = '/err/wg-output-tun/' - wg_input_node_name = '/err/wg-input/' - - port = 12323 - - # Create interfaces - wg0 = VppWgInterface(self, - self.pg1.local_ip4, - port).add_vpp_config() - wg0.admin_up() - wg0.config_ip4() - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - peer_1 = VppWgPeer(self, - wg0, - self.pg1.remote_ip4, - port+1, - ["10.11.2.0/24", - "10.11.3.0/24"]).add_vpp_config() - self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) - - # wait for the peer to send a handshake - rx = self.pg1.get_capture(1, timeout=2) - - # consume the handshake in the noise protocol and - # generate the response - resp = peer_1.consume_init(rx[0], self.pg1) - - # send the response, get keepalive - rxs = self.send_and_expect(self.pg1, [resp], self.pg1) - - for rx in rxs: - b = peer_1.decrypt_transport(rx) - self.assertEqual(0, len(b)) - - # send a packets that are routed into the tunnel - p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst="10.11.3.2") / - UDP(sport=555, dport=556) / - Raw(b'\x00' * 80)) - - rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) - - peer_1.validate_encapped(rxs, p) - - # send packets into the tunnel, expect to receive them on - # the other side - p = [(peer_1.mk_tunnel_header(self.pg1) / - Wireguard(message_type=4, reserved_zero=0) / - WireguardTransport( - receiver_index=peer_1.sender, - counter=ii, - encrypted_encapsulated_packet=peer_1.encrypt_transport( - (IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) / - UDP(sport=222, dport=223) / - Raw())))) for ii in range(255)] - - rxs = self.send_and_expect(self.pg1, p, self.pg0) - - for rx in rxs: - self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) - self.assertEqual(rx[IP].ttl, 19) - - def test_wg_peer_init(self): - """ Send handshake init """ - wg_output_node_name = '/err/wg-output-tun/' - wg_input_node_name = '/err/wg-input/' - - port = 12333 - - # Create interfaces - wg0 = VppWgInterface(self, - self.pg1.local_ip4, - port).add_vpp_config() - wg0.admin_up() - wg0.config_ip4() - - peer_1 = VppWgPeer(self, - wg0, - self.pg1.remote_ip4, - port+1, - ["10.11.2.0/24", - "10.11.3.0/24"]).add_vpp_config() - self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) - - # route a packet into the wg interface - # use the allowed-ip prefix - # this is dropped because the peer is not initiated - p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst="10.11.3.2") / - UDP(sport=555, dport=556) / - Raw()) - self.send_and_assert_no_replies(self.pg0, [p]) - - kp_error = wg_output_node_name + "Keypair error" - self.assertEqual(1, self.statistics.get_err_counter(kp_error)) - - # send a handsake from the peer with an invalid MAC - p = peer_1.mk_handshake(self.pg1) - p[WireguardInitiation].mac1 = b'foobar' - self.send_and_assert_no_replies(self.pg1, [p]) - self.assertEqual(1, self.statistics.get_err_counter( - wg_input_node_name + "Invalid MAC handshake")) - - # send a handsake from the peer but signed by the wrong key. - p = peer_1.mk_handshake(self.pg1, - X25519PrivateKey.generate().public_key()) - self.send_and_assert_no_replies(self.pg1, [p]) - self.assertEqual(1, self.statistics.get_err_counter( - wg_input_node_name + "Peer error")) - - # send a valid handsake init for which we expect a response - p = peer_1.mk_handshake(self.pg1) - - rx = self.send_and_expect(self.pg1, [p], self.pg1) - - peer_1.consume_response(rx[0]) - - # route a packet into the wg interface - # this is dropped because the peer is still not initiated - p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst="10.11.3.2") / - UDP(sport=555, dport=556) / - Raw()) - self.send_and_assert_no_replies(self.pg0, [p]) - self.assertEqual(2, self.statistics.get_err_counter(kp_error)) - - # send a data packet from the peer through the tunnel - # this completes the handshake - p = (IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) / - UDP(sport=222, dport=223) / - Raw()) - d = peer_1.encrypt_transport(p) - p = (peer_1.mk_tunnel_header(self.pg1) / - (Wireguard(message_type=4, reserved_zero=0) / - WireguardTransport(receiver_index=peer_1.sender, - counter=0, - encrypted_encapsulated_packet=d))) - rxs = self.send_and_expect(self.pg1, [p], self.pg0) - - for rx in rxs: - self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) - self.assertEqual(rx[IP].ttl, 19) - - # send a packets that are routed into the tunnel - p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst="10.11.3.2") / - UDP(sport=555, dport=556) / - Raw(b'\x00' * 80)) - - rxs = self.send_and_expect(self.pg0, p * 255, self.pg1) - - for rx in rxs: - rx = IP(peer_1.decrypt_transport(rx)) - - # chech the oringial packet is present - self.assertEqual(rx[IP].dst, p[IP].dst) - self.assertEqual(rx[IP].ttl, p[IP].ttl-1) - - # send packets into the tunnel, expect to receive them on - # the other side - p = [(peer_1.mk_tunnel_header(self.pg1) / - Wireguard(message_type=4, reserved_zero=0) / - WireguardTransport( - receiver_index=peer_1.sender, - counter=ii+1, - encrypted_encapsulated_packet=peer_1.encrypt_transport( - (IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) / - UDP(sport=222, dport=223) / - Raw())))) for ii in range(255)] - - rxs = self.send_and_expect(self.pg1, p, self.pg0) - - for rx in rxs: - self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) - self.assertEqual(rx[IP].ttl, 19) - - peer_1.remove_vpp_config() - wg0.remove_vpp_config() - - def test_wg_multi_peer(self): - """ multiple peer setup """ - port = 12343 - - # Create interfaces - wg0 = VppWgInterface(self, - self.pg1.local_ip4, - port).add_vpp_config() - wg1 = VppWgInterface(self, - self.pg2.local_ip4, - port+1).add_vpp_config() - wg0.admin_up() - wg1.admin_up() - - # Check peer counter - self.assertEqual(len(self.vapi.wireguard_peers_dump()), 0) - - self.pg_enable_capture(self.pg_interfaces) - self.pg_start() - - # Create many peers on sencond interface - NUM_PEERS = 16 - self.pg2.generate_remote_hosts(NUM_PEERS) - self.pg2.configure_ipv4_neighbors() - self.pg1.generate_remote_hosts(NUM_PEERS) - self.pg1.configure_ipv4_neighbors() - - peers_1 = [] - peers_2 = [] - for i in range(NUM_PEERS): - peers_1.append(VppWgPeer(self, - wg0, - self.pg1.remote_hosts[i].ip4, - port+1+i, - ["10.0.%d.4/32" % i]).add_vpp_config()) - peers_2.append(VppWgPeer(self, - wg1, - self.pg2.remote_hosts[i].ip4, - port+100+i, - ["10.100.%d.4/32" % i]).add_vpp_config()) - - self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_PEERS*2) - - self.logger.info(self.vapi.cli("show wireguard peer")) - self.logger.info(self.vapi.cli("show wireguard interface")) - self.logger.info(self.vapi.cli("show adj 37")) - self.logger.info(self.vapi.cli("sh ip fib 172.16.3.17")) - self.logger.info(self.vapi.cli("sh ip fib 10.11.3.0")) - - # remove peers - for p in peers_1: - self.assertTrue(p.query_vpp_config()) - p.remove_vpp_config() - for p in peers_2: - self.assertTrue(p.query_vpp_config()) - p.remove_vpp_config() - - wg0.remove_vpp_config() - wg1.remove_vpp_config() - - -class WireguardHandoffTests(TestWg): - """ Wireguard Tests in multi worker setup """ - vpp_worker_count = 2 - - def test_wg_peer_init(self): - """ Handoff """ - wg_output_node_name = '/err/wg-output-tun/' - wg_input_node_name = '/err/wg-input/' - - port = 12353 - - # Create interfaces - wg0 = VppWgInterface(self, - self.pg1.local_ip4, - port).add_vpp_config() - wg0.admin_up() - wg0.config_ip4() - - peer_1 = VppWgPeer(self, - wg0, - self.pg1.remote_ip4, - port+1, - ["10.11.2.0/24", - "10.11.3.0/24"]).add_vpp_config() - self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1) - - # send a valid handsake init for which we expect a response - p = peer_1.mk_handshake(self.pg1) - - rx = self.send_and_expect(self.pg1, [p], self.pg1) - - peer_1.consume_response(rx[0]) - - # send a data packet from the peer through the tunnel - # this completes the handshake and pins the peer to worker 0 - p = (IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) / - UDP(sport=222, dport=223) / - Raw()) - d = peer_1.encrypt_transport(p) - p = (peer_1.mk_tunnel_header(self.pg1) / - (Wireguard(message_type=4, reserved_zero=0) / - WireguardTransport(receiver_index=peer_1.sender, - counter=0, - encrypted_encapsulated_packet=d))) - rxs = self.send_and_expect(self.pg1, [p], self.pg0, - worker=0) - - for rx in rxs: - self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) - self.assertEqual(rx[IP].ttl, 19) - - # send a packets that are routed into the tunnel - # and pins the peer tp worker 1 - pe = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst="10.11.3.2") / - UDP(sport=555, dport=556) / - Raw(b'\x00' * 80)) - rxs = self.send_and_expect(self.pg0, pe * 255, self.pg1, worker=1) - peer_1.validate_encapped(rxs, pe) - - # send packets into the tunnel, from the other worker - p = [(peer_1.mk_tunnel_header(self.pg1) / - Wireguard(message_type=4, reserved_zero=0) / - WireguardTransport( - receiver_index=peer_1.sender, - counter=ii+1, - encrypted_encapsulated_packet=peer_1.encrypt_transport( - (IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20) / - UDP(sport=222, dport=223) / - Raw())))) for ii in range(255)] - - rxs = self.send_and_expect(self.pg1, p, self.pg0, worker=1) - - for rx in rxs: - self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) - self.assertEqual(rx[IP].ttl, 19) - - # send a packets that are routed into the tunnel - # from owrker 0 - rxs = self.send_and_expect(self.pg0, pe * 255, self.pg1, worker=0) - - peer_1.validate_encapped(rxs, pe) - - peer_1.remove_vpp_config() - wg0.remove_vpp_config() |