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authorDave Wallace <dwallacelf@gmail.com>2021-05-12 21:43:59 -0400
committerDamjan Marion <dmarion@me.com>2021-05-13 09:33:06 +0000
commiteddd8e3588561039985b27edf059db6033bfdfab (patch)
tree44896887d6070853ea77a18cae218f5d4ef4d93a /src/plugins/wireguard/test
parentfd77f8c00c8e9d528d91a9cefae1878e383582ed (diff)
tests: move test source to vpp/test
- Generate copyright year and version instead of using hard-coded data Type: refactor Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Change-Id: I6058f5025323b3aa483f5df4a2c4371e27b5914e
Diffstat (limited to 'src/plugins/wireguard/test')
-rwxr-xr-xsrc/plugins/wireguard/test/test_wireguard.py748
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()