import os
from hashlib import blake2s
-from scapy.packet import Packet
+from config import config
from scapy.packet import Raw
-from scapy.layers.l2 import Ether, ARP
+from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
+from scapy.layers.vxlan import VXLAN
from scapy.contrib.wireguard import (
Wireguard,
WireguardResponse,
WireguardInitiation,
WireguardTransport,
+ WireguardCookieReply,
)
from cryptography.hazmat.primitives.asymmetric.x25519 import (
X25519PrivateKey,
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 Crypto.Cipher import ChaCha20_Poly1305
+from Crypto.Random import get_random_bytes
+
from vpp_interface import VppInterface
+from vpp_pg_interface import is_ipv6_misc
from vpp_ip_route import VppIpRoute, VppRoutePath
+from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort
+from vpp_vxlan_tunnel import VppVxlanTunnel
from vpp_object import VppObject
from vpp_papi import VppEnum
+from asfframework import tag_run_solo, tag_fixme_vpp_debug
from framework import VppTestCase
from re import compile
import unittest
return k.public_bytes(Encoding.Raw, PublicFormat.Raw)
+def get_field_bytes(pkt, name):
+ fld, val = pkt.getfield_and_val(name)
+ return fld.i2m(pkt, val)
+
+
class VppWgInterface(VppInterface):
"""
VPP WireGuard interface
self.private_key = X25519PrivateKey.generate()
self.public_key = self.private_key.public_key()
+ # cookie related params
+ self.cookie_key = blake2s(b"cookie--" + self.public_key_bytes()).digest()
+
def public_key_bytes(self):
return public_key_bytes(self.public_key)
return "wireguard-%d" % self._sw_if_index
-def find_route(test, prefix, is_ip6, table_id=0):
- routes = test.vapi.ip_route_dump(table_id, is_ip6)
-
- 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"
+HANDSHAKE_COUNTING_INTERVAL = 0.5
+UNDER_LOAD_INTERVAL = 1.0
+HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD = 40
+HANDSHAKE_NUM_BEFORE_RATELIMITING = 5
+
+HANDSHAKE_JITTER = 0.5
+
class VppWgPeer(VppObject):
def __init__(self, test, itf, endpoint, port, allowed_ips, persistent_keepalive=15):
self.private_key = X25519PrivateKey.generate()
self.public_key = self.private_key.public_key()
+ # cookie related params
+ self.cookie_key = blake2s(b"cookie--" + self.public_key_bytes()).digest()
+ self.last_sent_cookie = None
+ self.last_mac1 = None
+ self.last_received_cookie = None
+
self.noise = NoiseConnection.from_name(NOISE_HANDSHAKE_NAME)
- def add_vpp_config(self, is_ip6=False):
+ def change_endpoint(self, endpoint, port):
+ self.endpoint = endpoint
+ self.port = port
+
+ def add_vpp_config(self):
rv = self._test.vapi.wireguard_peer_add(
peer={
"public_key": self.public_key_bytes(),
peers = self._test.vapi.wireguard_peers_dump()
for p in peers:
+ # "::" endpoint will be returned as "0.0.0.0" in peer's details
+ endpoint = "0.0.0.0" if self.endpoint == "::" else self.endpoint
if (
p.peer.public_key == self.public_key_bytes()
and p.peer.port == self.port
- and str(p.peer.endpoint) == self.endpoint
+ and str(p.peer.endpoint) == 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):
+ 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, is_ip6=False):
if is_ip6 is False:
return (
/ UDP(sport=self.port, dport=self.itf.port)
)
+ def noise_reset(self):
+ self.noise = NoiseConnection.from_name(NOISE_HANDSHAKE_NAME)
+
def noise_init(self, public_key=None):
self.noise.set_prologue(NOISE_IDENTIFIER_NAME)
self.noise.set_psks(psk=bytes(bytearray(32)))
self.noise.start_handshake()
+ def mk_cookie(self, p, tx_itf, is_resp=False, is_ip6=False):
+ self.verify_header(p, is_ip6)
+
+ wg_pkt = Wireguard(p[Raw])
+
+ if is_resp:
+ self._test.assertEqual(wg_pkt[Wireguard].message_type, 2)
+ self._test.assertEqual(wg_pkt[Wireguard].reserved_zero, 0)
+ self._test.assertEqual(wg_pkt[WireguardResponse].mac2, bytes([0] * 16))
+ else:
+ self._test.assertEqual(wg_pkt[Wireguard].message_type, 1)
+ self._test.assertEqual(wg_pkt[Wireguard].reserved_zero, 0)
+ self._test.assertEqual(wg_pkt[WireguardInitiation].mac2, bytes([0] * 16))
+
+ # collect info from wg packet (initiation or response)
+ src = get_field_bytes(p[IPv6 if is_ip6 else IP], "src")
+ sport = p[UDP].sport.to_bytes(2, byteorder="big")
+ if is_resp:
+ mac1 = wg_pkt[WireguardResponse].mac1
+ sender_index = wg_pkt[WireguardResponse].sender_index
+ else:
+ mac1 = wg_pkt[WireguardInitiation].mac1
+ sender_index = wg_pkt[WireguardInitiation].sender_index
+
+ # make cookie reply
+ cookie_reply = Wireguard() / WireguardCookieReply()
+ cookie_reply[Wireguard].message_type = 3
+ cookie_reply[Wireguard].reserved_zero = 0
+ cookie_reply[WireguardCookieReply].receiver_index = sender_index
+ nonce = get_random_bytes(24)
+ cookie_reply[WireguardCookieReply].nonce = nonce
+
+ # generate cookie data
+ changing_secret = get_random_bytes(32)
+ self.last_sent_cookie = blake2s(
+ src + sport, digest_size=16, key=changing_secret
+ ).digest()
+
+ # encrypt cookie data
+ cipher = ChaCha20_Poly1305.new(key=self.cookie_key, nonce=nonce)
+ cipher.update(mac1)
+ ciphertext, tag = cipher.encrypt_and_digest(self.last_sent_cookie)
+ cookie_reply[WireguardCookieReply].encrypted_cookie = ciphertext + tag
+
+ # prepare cookie reply to be sent
+ cookie_reply = self.mk_tunnel_header(tx_itf, is_ip6) / cookie_reply
+
+ return cookie_reply
+
+ def consume_cookie(self, p, is_ip6=False):
+ self.verify_header(p, is_ip6)
+
+ cookie_reply = Wireguard(p[Raw])
+
+ self._test.assertEqual(cookie_reply[Wireguard].message_type, 3)
+ self._test.assertEqual(cookie_reply[Wireguard].reserved_zero, 0)
+ self._test.assertEqual(
+ cookie_reply[WireguardCookieReply].receiver_index, self.receiver_index
+ )
+
+ # collect info from cookie reply
+ nonce = cookie_reply[WireguardCookieReply].nonce
+ encrypted_cookie = cookie_reply[WireguardCookieReply].encrypted_cookie
+ ciphertext, tag = encrypted_cookie[:16], encrypted_cookie[16:]
+
+ # decrypt cookie data
+ cipher = ChaCha20_Poly1305.new(key=self.itf.cookie_key, nonce=nonce)
+ cipher.update(self.last_mac1)
+ self.last_received_cookie = cipher.decrypt_and_verify(ciphertext, tag)
+
def mk_handshake(self, tx_itf, is_ip6=False, public_key=None):
self.noise.set_as_initiator()
self.noise_init(public_key)
# 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)
+ mac1 = blake2s(bytes(p)[0:116], digest_size=16, key=mac_key).digest()
+ p[WireguardInitiation].mac1 = mac1
+ self.last_mac1 = mac1
+
+ # generate the mac2 hash
+ if self.last_received_cookie:
+ mac2 = blake2s(
+ bytes(p)[0:132], digest_size=16, key=self.last_received_cookie
+ ).digest()
+ p[WireguardInitiation].mac2 = mac2
+ self.last_received_cookie = None
+ else:
+ p[WireguardInitiation].mac2 = bytearray(16)
p = self.mk_tunnel_header(tx_itf, is_ip6) / p
if is_ip6 is False:
self._test.assertEqual(p[IP].src, self.itf.src)
self._test.assertEqual(p[IP].dst, self.endpoint)
+ self._test.assert_packet_checksums_valid(p)
else:
self._test.assertEqual(p[IPv6].src, self.itf.src)
self._test.assertEqual(p[IPv6].dst, self.endpoint)
+ self._test.assert_packet_checksums_valid(p, False)
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, is_ip6=False):
+ def consume_init(self, p, tx_itf, is_ip6=False, is_mac2=False):
self.noise.set_as_responder()
self.noise_init(self.itf.public_key)
self.verify_header(p, is_ip6)
self.sender = init[WireguardInitiation].sender_index
- # validate the hash
+ # validate the mac1 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)
+ # validate the mac2 hash
+ if is_mac2:
+ self._test.assertNotEqual(init[WireguardInitiation].mac2, bytes([0] * 16))
+ self._test.assertNotEqual(self.last_sent_cookie, None)
+ mac2 = blake2s(
+ bytes(init)[0:-16], digest_size=16, key=self.last_sent_cookie
+ ).digest()
+ self._test.assertEqual(init[WireguardInitiation].mac2, mac2)
+ self.last_sent_cookie = None
+ else:
+ self._test.assertEqual(init[WireguardInitiation].mac2, bytes([0] * 16))
+
# this passes only unencrypted_ephemeral, encrypted_static,
# encrypted_timestamp fields of the init
payload = self.noise.read_message(bytes(init)[8:-32])
)
mac1 = blake2s(bytes(resp)[:-32], digest_size=16, key=mac_key).digest()
resp[WireguardResponse].mac1 = mac1
+ self.last_mac1 = mac1
resp = self.mk_tunnel_header(tx_itf, is_ip6) / resp
self._test.assertTrue(self.noise.handshake_finished)
def encrypt_transport(self, p):
return self.noise.encrypt(bytes(p))
- def validate_encapped(self, rxs, tx, is_ip6=False):
+ def validate_encapped(self, rxs, tx, is_tunnel_ip6=False, is_transport_ip6=False):
+ ret_rxs = []
for rx in rxs:
- if is_ip6 is False:
- rx = IP(self.decrypt_transport(rx))
-
- # chech the oringial packet is present
+ rx = self.decrypt_transport(rx, is_tunnel_ip6)
+ if is_transport_ip6 is False:
+ rx = IP(rx)
+ # check the original packet is present
self._test.assertEqual(rx[IP].dst, tx[IP].dst)
self._test.assertEqual(rx[IP].ttl, tx[IP].ttl - 1)
else:
- rx = IPv6(self.decrypt_transport(rx))
-
- # chech the oringial packet is present
+ rx = IPv6(rx)
+ # check the original packet is present
self._test.assertEqual(rx[IPv6].dst, tx[IPv6].dst)
- self._test.assertEqual(rx[IPv6].ttl, tx[IPv6].ttl - 1)
+ self._test.assertEqual(rx[IPv6].hlim, tx[IPv6].hlim - 1)
+ ret_rxs.append(rx)
+ return ret_rxs
def want_events(self):
self._test.vapi.want_wireguard_peer_events(
self._test.assertEqual(rv.peer_index, self.index)
+def is_handshake_init(p):
+ wg_p = Wireguard(p[Raw])
+
+ return wg_p[Wireguard].message_type == 1
+
+
+@unittest.skipIf(
+ "wireguard" in config.excluded_plugins, "Exclude Wireguard plugin tests"
+)
+@tag_run_solo
class TestWg(VppTestCase):
"""Wireguard Test Case"""
wg6_input_node_name = "/err/wg6-input/"
kp4_error = wg4_output_node_name + "Keypair error"
mac4_error = wg4_input_node_name + "Invalid MAC handshake"
- peer4_error = wg4_input_node_name + "Peer error"
+ peer4_in_err = wg4_input_node_name + "Peer error"
+ peer4_out_err = wg4_output_node_name + "Peer error"
kp6_error = wg6_output_node_name + "Keypair error"
mac6_error = wg6_input_node_name + "Invalid MAC handshake"
- peer6_error = wg6_input_node_name + "Peer error"
+ peer6_in_err = wg6_input_node_name + "Peer error"
+ peer6_out_err = wg6_output_node_name + "Peer error"
+ cookie_dec4_err = wg4_input_node_name + "Failed during Cookie decryption"
+ cookie_dec6_err = wg6_input_node_name + "Failed during Cookie decryption"
+ ratelimited4_err = wg4_input_node_name + "Handshake ratelimited"
+ ratelimited6_err = wg6_input_node_name + "Handshake ratelimited"
@classmethod
def setUpClass(cls):
super(VppTestCase, self).setUp()
self.base_kp4_err = self.statistics.get_err_counter(self.kp4_error)
self.base_mac4_err = self.statistics.get_err_counter(self.mac4_error)
- self.base_peer4_err = self.statistics.get_err_counter(self.peer4_error)
+ self.base_peer4_in_err = self.statistics.get_err_counter(self.peer4_in_err)
+ self.base_peer4_out_err = self.statistics.get_err_counter(self.peer4_out_err)
self.base_kp6_err = self.statistics.get_err_counter(self.kp6_error)
self.base_mac6_err = self.statistics.get_err_counter(self.mac6_error)
- self.base_peer6_err = self.statistics.get_err_counter(self.peer6_error)
+ self.base_peer6_in_err = self.statistics.get_err_counter(self.peer6_in_err)
+ self.base_peer6_out_err = self.statistics.get_err_counter(self.peer6_out_err)
+ self.base_cookie_dec4_err = self.statistics.get_err_counter(
+ self.cookie_dec4_err
+ )
+ self.base_cookie_dec6_err = self.statistics.get_err_counter(
+ self.cookie_dec6_err
+ )
+ self.base_ratelimited4_err = self.statistics.get_err_counter(
+ self.ratelimited4_err
+ )
+ self.base_ratelimited6_err = self.statistics.get_err_counter(
+ self.ratelimited6_err
+ )
+
+ def send_and_assert_no_replies_ignoring_init(
+ self, intf, pkts, remark="", timeout=None
+ ):
+ self.pg_send(intf, pkts)
+
+ def _filter_out_fn(p):
+ return is_ipv6_misc(p) or is_handshake_init(p)
+
+ try:
+ if not timeout:
+ timeout = 1
+ for i in self.pg_interfaces:
+ i.assert_nothing_captured(
+ timeout=timeout, remark=remark, filter_out_fn=_filter_out_fn
+ )
+ timeout = 0.1
+ finally:
+ pass
def test_wg_interface(self):
"""Simple interface creation"""
self.assertEqual(tgt, act)
+ def _test_wg_send_cookie_tmpl(self, is_resp, is_ip6):
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"]
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ if is_resp:
+ # skip the first automatic handshake
+ self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER)
+
+ # prepare and send a handshake initiation
+ # expect the peer to send a handshake response
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+ else:
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+
+ # prepare and send a wrong cookie reply
+ # expect no replies and the cookie error incremented
+ cookie = peer_1.mk_cookie(rxs[0], self.pg1, is_resp=is_resp, is_ip6=is_ip6)
+ cookie.nonce = b"1234567890"
+ self.send_and_assert_no_replies(self.pg1, [cookie], timeout=0.1)
+ if is_ip6:
+ self.assertEqual(
+ self.base_cookie_dec6_err + 1,
+ self.statistics.get_err_counter(self.cookie_dec6_err),
+ )
+ else:
+ self.assertEqual(
+ self.base_cookie_dec4_err + 1,
+ self.statistics.get_err_counter(self.cookie_dec4_err),
+ )
+
+ # prepare and send a correct cookie reply
+ cookie = peer_1.mk_cookie(rxs[0], self.pg1, is_resp=is_resp, is_ip6=is_ip6)
+ self.pg_send(self.pg1, [cookie])
+
+ # wait for the peer to send a handshake initiation with mac2 set
+ rxs = self.pg1.get_capture(1, timeout=6)
+
+ # verify the initiation and its mac2
+ peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6, is_mac2=True)
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_send_cookie_on_init_v4(self):
+ """Send cookie on handshake initiation (v4)"""
+ self._test_wg_send_cookie_tmpl(is_resp=False, is_ip6=False)
+
+ def test_wg_send_cookie_on_init_v6(self):
+ """Send cookie on handshake initiation (v6)"""
+ self._test_wg_send_cookie_tmpl(is_resp=False, is_ip6=True)
+
+ def test_wg_send_cookie_on_resp_v4(self):
+ """Send cookie on handshake response (v4)"""
+ self._test_wg_send_cookie_tmpl(is_resp=True, is_ip6=False)
+
+ def test_wg_send_cookie_on_resp_v6(self):
+ """Send cookie on handshake response (v6)"""
+ self._test_wg_send_cookie_tmpl(is_resp=True, is_ip6=True)
+
+ def _test_wg_receive_cookie_tmpl(self, is_resp, is_ip6):
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"]
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ if is_resp:
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+ # prepare and send a bunch of handshake responses
+ # expect to switch to under load state
+ resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6)
+ txs = [resp] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+ # reset noise to be able to turn into initiator later
+ peer_1.noise_reset()
+ else:
+ # skip the first automatic handshake
+ self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER)
+
+ # prepare and send a bunch of handshake initiations
+ # expect to switch to under load state
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ # expect the peer to send a cookie reply
+ peer_1.consume_cookie(rxs[-1], is_ip6=is_ip6)
+
+ # prepare and send a handshake initiation with wrong mac2
+ # expect a cookie reply
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ init.mac2 = b"1234567890"
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+ peer_1.consume_cookie(rxs[0], is_ip6=is_ip6)
+
+ # prepare and send a handshake initiation with correct mac2
+ # expect a handshake response
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+
+ # verify the response
+ peer_1.consume_response(rxs[0], is_ip6=is_ip6)
+
+ # clear up under load state
+ self.sleep(UNDER_LOAD_INTERVAL)
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_receive_cookie_on_init_v4(self):
+ """Receive cookie on handshake initiation (v4)"""
+ self._test_wg_receive_cookie_tmpl(is_resp=False, is_ip6=False)
+
+ def test_wg_receive_cookie_on_init_v6(self):
+ """Receive cookie on handshake initiation (v6)"""
+ self._test_wg_receive_cookie_tmpl(is_resp=False, is_ip6=True)
+
+ def test_wg_receive_cookie_on_resp_v4(self):
+ """Receive cookie on handshake response (v4)"""
+ self._test_wg_receive_cookie_tmpl(is_resp=True, is_ip6=False)
+
+ def test_wg_receive_cookie_on_resp_v6(self):
+ """Receive cookie on handshake response (v6)"""
+ self._test_wg_receive_cookie_tmpl(is_resp=True, is_ip6=True)
+
+ def test_wg_under_load_interval(self):
+ """Under load interval"""
+ port = 12323
+
+ # create wg interface
+ 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()
+
+ # create a peer
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # skip the first automatic handshake
+ self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER)
+
+ # prepare and send a bunch of handshake initiations
+ # expect to switch to under load state
+ init = peer_1.mk_handshake(self.pg1)
+ txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ # expect the peer to send a cookie reply
+ peer_1.consume_cookie(rxs[-1])
+
+ # sleep till the next counting interval
+ # expect under load state is still active
+ self.sleep(HANDSHAKE_COUNTING_INTERVAL)
+
+ # prepare and send a handshake initiation with wrong mac2
+ # expect a cookie reply
+ init = peer_1.mk_handshake(self.pg1)
+ init.mac2 = b"1234567890"
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+ peer_1.consume_cookie(rxs[0])
+
+ # sleep till the end of being under load
+ # expect under load state is over
+ self.sleep(UNDER_LOAD_INTERVAL - HANDSHAKE_COUNTING_INTERVAL)
+
+ # prepare and send a handshake initiation with wrong mac2
+ # expect a handshake response
+ init = peer_1.mk_handshake(self.pg1)
+ init.mac2 = b"1234567890"
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+
+ # verify the response
+ peer_1.consume_response(rxs[0])
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def _test_wg_handshake_ratelimiting_tmpl(self, is_ip6):
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"]
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # skip the first automatic handshake
+ self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER)
+
+ # prepare and send a bunch of handshake initiations
+ # expect to switch to under load state
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ txs = [init] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ # expect the peer to send a cookie reply
+ peer_1.consume_cookie(rxs[-1], is_ip6=is_ip6)
+
+ # prepare and send a bunch of handshake initiations with correct mac2
+ # expect a handshake response and then ratelimiting
+ NUM_TO_REJECT = 10
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ txs = [init] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + NUM_TO_REJECT)
+
+ # TODO: Deterimine why no handshake response is sent back if test is
+ # not run in as part of the test suite. It fails only very occasionally
+ # when run solo.
+ #
+ # Until then, if no response, don't fail trying to verify it.
+ # The error counter test still verifies that the correct number of
+ # handshake initiaions are ratelimited.
+ try:
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+ except:
+ self.logger.debug(
+ f"{self._testMethodDoc}: send_and_expect_some() failed to get any response packets."
+ )
+ rxs = None
+ pass
+
+ if is_ip6:
+ self.assertEqual(
+ self.base_ratelimited6_err + NUM_TO_REJECT,
+ self.statistics.get_err_counter(self.ratelimited6_err),
+ )
+ else:
+ self.assertEqual(
+ self.base_ratelimited4_err + NUM_TO_REJECT,
+ self.statistics.get_err_counter(self.ratelimited4_err),
+ )
+
+ # verify the response
+ if rxs is not None:
+ peer_1.consume_response(rxs[0], is_ip6=is_ip6)
+
+ # clear up under load state
+ self.sleep(UNDER_LOAD_INTERVAL)
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_handshake_ratelimiting_v4(self):
+ """Handshake ratelimiting (v4)"""
+ self._test_wg_handshake_ratelimiting_tmpl(is_ip6=False)
+
+ def test_wg_handshake_ratelimiting_v6(self):
+ """Handshake ratelimiting (v6)"""
+ self._test_wg_handshake_ratelimiting_tmpl(is_ip6=True)
+
+ def test_wg_handshake_ratelimiting_multi_peer(self):
+ """Handshake ratelimiting (multiple peer)"""
+ port = 12323
+
+ # create wg interface
+ 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()
+
+ # create two peers
+ NUM_PEERS = 2
+ self.pg1.generate_remote_hosts(NUM_PEERS)
+ self.pg1.configure_ipv4_neighbors()
+
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_hosts[0].ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ peer_2 = VppWgPeer(
+ self, wg0, self.pg1.remote_hosts[1].ip4, port + 1, ["10.11.4.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 2)
+
+ # skip the first automatic handshake
+ self.pg1.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER)
+
+ # (peer_1) prepare and send a bunch of handshake initiations
+ # expect not to switch to under load state
+ init_1 = peer_1.mk_handshake(self.pg1)
+ txs = [init_1] * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ # (peer_1) expect the peer to send a handshake response
+ peer_1.consume_response(rxs[0])
+ peer_1.noise_reset()
+
+ # (peer_1) send another bunch of handshake initiations
+ # expect to switch to under load state
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ # (peer_1) expect the peer to send a cookie reply
+ peer_1.consume_cookie(rxs[-1])
+
+ # (peer_2) prepare and send a handshake initiation
+ # expect a cookie reply
+ init_2 = peer_2.mk_handshake(self.pg1)
+ rxs = self.send_and_expect(self.pg1, [init_2], self.pg1)
+ peer_2.consume_cookie(rxs[0])
+
+ # (peer_1) (peer_2) prepare and send a bunch of handshake initiations with correct mac2
+ # expect a handshake response and then ratelimiting
+ PEER_1_NUM_TO_REJECT = 2
+ PEER_2_NUM_TO_REJECT = 5
+ init_1 = peer_1.mk_handshake(self.pg1)
+ txs = [init_1] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + PEER_1_NUM_TO_REJECT)
+ init_2 = peer_2.mk_handshake(self.pg1)
+ txs += [init_2] * (HANDSHAKE_NUM_BEFORE_RATELIMITING + PEER_2_NUM_TO_REJECT)
+ rxs = self.send_and_expect_some(self.pg1, txs, self.pg1)
+
+ self.assertTrue(
+ self.base_ratelimited4_err + PEER_1_NUM_TO_REJECT
+ < self.statistics.get_err_counter(self.ratelimited4_err)
+ <= self.base_ratelimited4_err + PEER_1_NUM_TO_REJECT + PEER_2_NUM_TO_REJECT
+ )
+
+ # (peer_1) (peer_2) verify the response
+ peer_1.consume_response(rxs[0])
+ peer_2.consume_response(rxs[1])
+
+ # clear up under load state
+ self.sleep(UNDER_LOAD_INTERVAL)
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ peer_2.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def _test_wg_peer_roaming_on_handshake_tmpl(self, is_endpoint_set, is_resp, is_ip6):
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create more remote hosts
+ NUM_REMOTE_HOSTS = 2
+ self.pg1.generate_remote_hosts(NUM_REMOTE_HOSTS)
+ if is_ip6:
+ self.pg1.configure_ipv6_neighbors()
+ else:
+ self.pg1.configure_ipv4_neighbors()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ test=self,
+ itf=wg0,
+ endpoint=self.pg1.remote_hosts[0].ip6 if is_endpoint_set else "::",
+ port=port + 1 if is_endpoint_set else 0,
+ allowed_ips=["1::3:0/112"],
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ test=self,
+ itf=wg0,
+ endpoint=self.pg1.remote_hosts[0].ip4 if is_endpoint_set else "0.0.0.0",
+ port=port + 1 if is_endpoint_set else 0,
+ allowed_ips=["10.11.3.0/24"],
+ ).add_vpp_config()
+ self.assertTrue(peer_1.query_vpp_config())
+
+ if is_resp:
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+ # prepare a handshake response
+ resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6)
+ # change endpoint
+ if is_ip6:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100)
+ resp[IPv6].src, resp[UDP].sport = peer_1.endpoint, peer_1.port
+ else:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100)
+ resp[IP].src, resp[UDP].sport = peer_1.endpoint, peer_1.port
+ # send the handshake response
+ # expect a keepalive message sent to the new endpoint
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6)
+ self.assertEqual(0, len(b))
+ else:
+ # change endpoint
+ if is_ip6:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100)
+ else:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100)
+ # prepare and send a handshake initiation
+ # expect a handshake response sent to the new endpoint
+ init = peer_1.mk_handshake(self.pg1, is_ip6=is_ip6)
+ rxs = self.send_and_expect(self.pg1, [init], self.pg1)
+ # verify the response
+ peer_1.consume_response(rxs[0], is_ip6=is_ip6)
+ self.assertTrue(peer_1.query_vpp_config())
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_peer_roaming_on_init_v4(self):
+ """Peer roaming on handshake initiation (v4)"""
+ self._test_wg_peer_roaming_on_handshake_tmpl(
+ is_endpoint_set=False, is_resp=False, is_ip6=False
+ )
+
+ def test_wg_peer_roaming_on_init_v6(self):
+ """Peer roaming on handshake initiation (v6)"""
+ self._test_wg_peer_roaming_on_handshake_tmpl(
+ is_endpoint_set=False, is_resp=False, is_ip6=True
+ )
+
+ def test_wg_peer_roaming_on_resp_v4(self):
+ """Peer roaming on handshake response (v4)"""
+ self._test_wg_peer_roaming_on_handshake_tmpl(
+ is_endpoint_set=True, is_resp=True, is_ip6=False
+ )
+
+ def test_wg_peer_roaming_on_resp_v6(self):
+ """Peer roaming on handshake response (v6)"""
+ self._test_wg_peer_roaming_on_handshake_tmpl(
+ is_endpoint_set=True, is_resp=True, is_ip6=True
+ )
+
+ def _test_wg_peer_roaming_on_data_tmpl(self, is_async, is_ip6):
+ self.vapi.wg_set_async_mode(is_async)
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create more remote hosts
+ NUM_REMOTE_HOSTS = 2
+ self.pg1.generate_remote_hosts(NUM_REMOTE_HOSTS)
+ if is_ip6:
+ self.pg1.configure_ipv6_neighbors()
+ else:
+ self.pg1.configure_ipv4_neighbors()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_hosts[0].ip6, port + 1, ["1::3:0/112"]
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_hosts[0].ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertTrue(peer_1.query_vpp_config())
+
+ # create a route to rewrite traffic into the wg interface
+ if is_ip6:
+ r1 = VppIpRoute(
+ self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)]
+ ).add_vpp_config()
+ else:
+ r1 = VppIpRoute(
+ self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+
+ # prepare and send a handshake response
+ # expect a keepalive message
+ resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6)
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6)
+ self.assertEqual(0, len(b))
+
+ # change endpoint
+ if is_ip6:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip6, port + 100)
+ else:
+ peer_1.change_endpoint(self.pg1.remote_hosts[1].ip4, port + 100)
+
+ # prepare and send a data packet
+ # expect endpoint change
+ if is_ip6:
+ ip_header = IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20)
+ else:
+ ip_header = IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20)
+ data = (
+ peer_1.mk_tunnel_header(self.pg1, is_ip6=is_ip6)
+ / Wireguard(message_type=4, reserved_zero=0)
+ / WireguardTransport(
+ receiver_index=peer_1.sender,
+ counter=0,
+ encrypted_encapsulated_packet=peer_1.encrypt_transport(
+ ip_header / UDP(sport=222, dport=223) / Raw()
+ ),
+ )
+ )
+ rxs = self.send_and_expect(self.pg1, [data], self.pg0)
+ if is_ip6:
+ self.assertEqual(rxs[0][IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(rxs[0][IPv6].hlim, 19)
+ else:
+ self.assertEqual(rxs[0][IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rxs[0][IP].ttl, 19)
+ self.assertTrue(peer_1.query_vpp_config())
+
+ # prepare and send a packet that will be rewritten into the wg interface
+ # expect a data packet sent to the new endpoint
+ if is_ip6:
+ ip_header = IPv6(src=self.pg0.remote_ip6, dst="1::3:2")
+ else:
+ ip_header = IP(src=self.pg0.remote_ip4, dst="10.11.3.2")
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / ip_header
+ / UDP(sport=555, dport=556)
+ / Raw()
+ )
+ rxs = self.send_and_expect(self.pg0, [p], self.pg1)
+
+ # verify the data packet
+ peer_1.validate_encapped(rxs, p, is_tunnel_ip6=is_ip6, is_transport_ip6=is_ip6)
+
+ # remove configs
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_peer_roaming_on_data_v4_sync(self):
+ """Peer roaming on data packet (v4, sync)"""
+ self._test_wg_peer_roaming_on_data_tmpl(is_async=False, is_ip6=False)
+
+ def test_wg_peer_roaming_on_data_v6_sync(self):
+ """Peer roaming on data packet (v6, sync)"""
+ self._test_wg_peer_roaming_on_data_tmpl(is_async=False, is_ip6=True)
+
+ def test_wg_peer_roaming_on_data_v4_async(self):
+ """Peer roaming on data packet (v4, async)"""
+ self._test_wg_peer_roaming_on_data_tmpl(is_async=True, is_ip6=False)
+
+ def test_wg_peer_roaming_on_data_v6_async(self):
+ """Peer roaming on data packet (v6, async)"""
+ self._test_wg_peer_roaming_on_data_tmpl(is_async=True, is_ip6=True)
+
def test_wg_peer_resp(self):
- """Send handshake response"""
+ """Send handshake response IPv4 tunnel"""
port = 12323
# Create interfaces
peer_1.remove_vpp_config()
wg0.remove_vpp_config()
+ def test_wg_peer_resp_ipv6(self):
+ """Send handshake response IPv6 tunnel"""
+ port = 12323
+
+ # Create interfaces
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, 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_ip6, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ r1 = VppIpRoute(
+ self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # 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, is_ip6=True)
+
+ # 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, True)
+ 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 * 2, self.pg1)
+ peer_1.validate_encapped(rxs, p, True)
+
+ # send packets into the tunnel, expect to receive them on
+ # the other side
+ p = [
+ (
+ peer_1.mk_tunnel_header(self.pg1, True)
+ / 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)
+
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
def test_wg_peer_v4o4(self):
"""Test v4o4"""
r1 = VppIpRoute(
self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
).add_vpp_config()
+ r2 = VppIpRoute(
+ self, "20.22.3.0", 24, [VppRoutePath("20.22.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # 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_ignoring_init(self.pg0, [p])
+ self.assertEqual(
+ self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error)
+ )
# route a packet into the wg interface
- # use the allowed-ip prefix
- # this is dropped because the peer is not initiated
+ # use a not allowed-ip prefix
+ # this is dropped because there is no matching peer
p = (
Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
- / IP(src=self.pg0.remote_ip4, dst="10.11.3.2")
+ / IP(src=self.pg0.remote_ip4, dst="20.22.3.2")
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
- self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error)
+ self.base_peer4_out_err + 1,
+ self.statistics.get_err_counter(self.peer4_out_err),
)
# 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.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
self.base_mac4_err + 1, self.statistics.get_err_counter(self.mac4_error)
)
p = peer_1.mk_handshake(
self.pg1, False, X25519PrivateKey.generate().public_key()
)
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
- self.base_peer4_err + 1, self.statistics.get_err_counter(self.peer4_error)
+ self.base_peer4_in_err + 1,
+ self.statistics.get_err_counter(self.peer4_in_err),
)
# send a valid handsake init for which we expect a response
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp4_err + 2, self.statistics.get_err_counter(self.kp4_error)
)
for rx in rxs:
rx = IP(peer_1.decrypt_transport(rx))
- # chech the oringial packet is present
+ # check the original packet is present
self.assertEqual(rx[IP].dst, p[IP].dst)
self.assertEqual(rx[IP].ttl, p[IP].ttl - 1)
self.assertEqual(rx[IP].ttl, 19)
r1.remove_vpp_config()
+ r2.remove_vpp_config()
peer_1.remove_vpp_config()
wg0.remove_vpp_config()
peer_1 = VppWgPeer(
self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"]
- ).add_vpp_config(True)
+ ).add_vpp_config()
self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
r1 = VppIpRoute(
self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)]
).add_vpp_config()
+ r2 = VppIpRoute(
+ self, "22::3:0", 112, [VppRoutePath("22::3:1", wg0.sw_if_index)]
+ ).add_vpp_config()
# route a packet into the wg interface
# use the allowed-ip prefix
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp6_err + 1, self.statistics.get_err_counter(self.kp6_error)
)
+ # route a packet into the wg interface
+ # use a not allowed-ip prefix
+ # this is dropped because there is no matching peer
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / IPv6(src=self.pg0.remote_ip6, dst="22::3:2")
+ / UDP(sport=555, dport=556)
+ / Raw()
+ )
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
+ self.assertEqual(
+ self.base_peer6_out_err + 1,
+ self.statistics.get_err_counter(self.peer6_out_err),
+ )
+
# send a handsake from the peer with an invalid MAC
p = peer_1.mk_handshake(self.pg1, True)
p[WireguardInitiation].mac1 = b"foobar"
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
self.base_mac6_err + 1, self.statistics.get_err_counter(self.mac6_error)
p = peer_1.mk_handshake(
self.pg1, True, X25519PrivateKey.generate().public_key()
)
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
- self.base_peer6_err + 1, self.statistics.get_err_counter(self.peer6_error)
+ self.base_peer6_in_err + 1,
+ self.statistics.get_err_counter(self.peer6_in_err),
)
# send a valid handsake init for which we expect a response
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp6_err + 2, self.statistics.get_err_counter(self.kp6_error)
)
for rx in rxs:
rx = IPv6(peer_1.decrypt_transport(rx, True))
- # chech the oringial packet is present
+ # check the original packet is present
self.assertEqual(rx[IPv6].dst, p[IPv6].dst)
self.assertEqual(rx[IPv6].hlim, p[IPv6].hlim - 1)
self.assertEqual(rx[IPv6].hlim, 19)
r1.remove_vpp_config()
+ r2.remove_vpp_config()
peer_1.remove_vpp_config()
wg0.remove_vpp_config()
peer_1 = VppWgPeer(
self, wg0, self.pg1.remote_ip4, port + 1, ["1::3:0/112"]
- ).add_vpp_config(True)
+ ).add_vpp_config()
self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
r1 = VppIpRoute(
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp6_err + 1, self.statistics.get_err_counter(self.kp6_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.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
self.base_mac4_err + 1, self.statistics.get_err_counter(self.mac4_error)
p = peer_1.mk_handshake(
self.pg1, False, X25519PrivateKey.generate().public_key()
)
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
- self.base_peer4_err + 1, self.statistics.get_err_counter(self.peer4_error)
+ self.base_peer4_in_err + 1,
+ self.statistics.get_err_counter(self.peer4_in_err),
)
# send a valid handsake init for which we expect a response
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp6_err + 2, self.statistics.get_err_counter(self.kp6_error)
)
for rx in rxs:
rx = IPv6(peer_1.decrypt_transport(rx))
- # chech the oringial packet is present
+ # check the original packet is present
self.assertEqual(rx[IPv6].dst, p[IPv6].dst)
self.assertEqual(rx[IPv6].hlim, p[IPv6].hlim - 1)
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error)
)
# send a handsake from the peer with an invalid MAC
p = peer_1.mk_handshake(self.pg1, True)
p[WireguardInitiation].mac1 = b"foobar"
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
self.base_mac6_err + 1, self.statistics.get_err_counter(self.mac6_error)
)
p = peer_1.mk_handshake(
self.pg1, True, X25519PrivateKey.generate().public_key()
)
- self.send_and_assert_no_replies(self.pg1, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg1, [p])
self.assertEqual(
- self.base_peer6_err + 1, self.statistics.get_err_counter(self.peer6_error)
+ self.base_peer6_in_err + 1,
+ self.statistics.get_err_counter(self.peer6_in_err),
)
# send a valid handsake init for which we expect a response
/ UDP(sport=555, dport=556)
/ Raw()
)
- self.send_and_assert_no_replies(self.pg0, [p])
+ self.send_and_assert_no_replies_ignoring_init(self.pg0, [p])
self.assertEqual(
self.base_kp4_err + 2, self.statistics.get_err_counter(self.kp4_error)
)
for rx in rxs:
rx = IP(peer_1.decrypt_transport(rx, True))
- # chech the oringial packet is present
+ # check the original packet is present
self.assertEqual(rx[IP].dst, p[IP].dst)
self.assertEqual(rx[IP].ttl, p[IP].ttl - 1)
self.pg0.generate_remote_hosts(NUM_IFS)
self.pg0.configure_ipv4_neighbors()
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
# Create interfaces with a peer on each
peers = []
routes = []
self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_IFS)
+ # skip the first automatic handshake
+ self.pg1.get_capture(NUM_IFS, timeout=HANDSHAKE_JITTER)
+
for i in range(NUM_IFS):
# send a valid handsake init for which we expect a response
p = peers[i].mk_handshake(self.pg1)
self.assertEqual(len(self.vapi.wireguard_peers_dump()), NUM_PEERS * 2)
+ # skip the first automatic handshake
+ self.pg1.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER)
+ self.pg2.get_capture(NUM_PEERS, timeout=HANDSHAKE_JITTER)
+
# Want events from the first perr of wg0
# and from all wg1 peers
peers_0[0].want_events()
wg1.want_events()
for i in range(NUM_PEERS):
- # send a valid handsake init for which we expect a response
+ # wg0 peers: send a valid handsake init for which we expect a response
p = peers_0[i].mk_handshake(self.pg1)
rx = self.send_and_expect(self.pg1, [p], self.pg1)
peers_0[i].consume_response(rx[0])
+
+ # wg0 peers: send empty packet, it means successful connection (WIREGUARD_PEER_ESTABLISHED)
+ keepalive = peers_0[i].encrypt_transport(0)
+ p = peers_0[i].mk_tunnel_header(self.pg1) / (
+ Wireguard(message_type=4, reserved_zero=0)
+ / WireguardTransport(
+ receiver_index=peers_0[i].sender,
+ counter=0,
+ encrypted_encapsulated_packet=keepalive,
+ )
+ )
+ # TODO: Figure out wny there are sometimes wg packets received here
+ # self.send_and_assert_no_replies(self.pg1, [p])
+ self.pg_send(self.pg1, [p])
+
+ # wg0 peers: wait for established flag
if i == 0:
peers_0[0].wait_event(ESTABLISHED_FLAG)
+ # wg1 peers: send a valid handsake init for which we expect a response
p = peers_1[i].mk_handshake(self.pg2)
rx = self.send_and_expect(self.pg2, [p], self.pg2)
peers_1[i].consume_response(rx[0])
+ # wg1 peers: send empty packet, it means successful connection (WIREGUARD_PEER_ESTABLISHED)
+ keepalive = peers_1[i].encrypt_transport(0)
+ p = peers_1[i].mk_tunnel_header(self.pg2) / (
+ Wireguard(message_type=4, reserved_zero=0)
+ / WireguardTransport(
+ receiver_index=peers_1[i].sender,
+ counter=0,
+ encrypted_encapsulated_packet=keepalive,
+ )
+ )
+ self.send_and_assert_no_replies(self.pg2, [p])
+
+ # wg1 peers: wait for established flag
wg1.wait_events(ESTABLISHED_FLAG, [peers_1[0].index, peers_1[1].index])
# remove routes
wg0.remove_vpp_config()
wg1.remove_vpp_config()
+ def test_wg_sending_handshake_when_admin_down(self):
+ """Sending handshake when admin down"""
+ port = 12323
+
+ # create wg interface
+ wg0 = VppWgInterface(self, self.pg1.local_ip4, port).add_vpp_config()
+ wg0.config_ip4()
+
+ # create a peer
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # wait for the peer to send a handshake initiation
+ # expect no handshakes
+ for i in range(2):
+ self.pg1.assert_nothing_captured(remark="handshake packet(s) sent")
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # administratively enable the wg interface
+ # expect the peer to send a handshake initiation
+ wg0.admin_up()
+ rxs = self.pg1.get_capture(1, timeout=2)
+ peer_1.consume_init(rxs[0], self.pg1)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # administratively disable the wg interface
+ # expect no handshakes
+ wg0.admin_down()
+ for i in range(6):
+ self.pg1.assert_nothing_captured(remark="handshake packet(s) sent")
+
+ # remove configs
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_sending_data_when_admin_down(self):
+ """Sending data when admin down"""
+ port = 12323
+
+ # create wg interface
+ 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()
+
+ # create a peer
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # create a route to rewrite traffic into the wg interface
+ r1 = VppIpRoute(
+ self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+
+ # prepare and send a handshake response
+ # expect a keepalive message
+ resp = peer_1.consume_init(rxs[0], self.pg1)
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0])
+ self.assertEqual(0, len(b))
+
+ # prepare and send a packet that will be rewritten into the wg interface
+ # expect a data packet sent
+ 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()
+ )
+ rxs = self.send_and_expect(self.pg0, [p], self.pg1)
+
+ # verify the data packet
+ peer_1.validate_encapped(rxs, p)
+
+ # administratively disable the wg interface
+ wg0.admin_down()
+
+ # send a packet that will be rewritten into the wg interface
+ # expect no data packets sent
+ self.send_and_assert_no_replies(self.pg0, [p])
+
+ # administratively enable the wg interface
+ # expect the peer to send a handshake initiation
+ wg0.admin_up()
+ peer_1.noise_reset()
+ rxs = self.pg1.get_capture(1, timeout=2)
+ resp = peer_1.consume_init(rxs[0], self.pg1)
+
+ # send a packet that will be rewritten into the wg interface
+ # expect no data packets sent because the peer is not initiated
+ self.send_and_assert_no_replies(self.pg0, [p])
+ self.assertEqual(
+ self.base_kp4_err + 1, self.statistics.get_err_counter(self.kp4_error)
+ )
+
+ # send a handshake response and expect a keepalive message
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0])
+ self.assertEqual(0, len(b))
+
+ # send a packet that will be rewritten into the wg interface
+ # expect a data packet sent
+ rxs = self.send_and_expect(self.pg0, [p], self.pg1)
+
+ # verify the data packet
+ peer_1.validate_encapped(rxs, p)
+
+ # remove configs
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def _test_wg_large_packet_tmpl(self, is_async, is_ip6):
+ self.vapi.wg_set_async_mode(is_async)
+ port = 12323
+
+ # create wg interface
+ if is_ip6:
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+ else:
+ 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()
+
+ # create a peer
+ if is_ip6:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip6, port + 1, ["1::3:0/112"]
+ ).add_vpp_config()
+ else:
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # create a route to rewrite traffic into the wg interface
+ if is_ip6:
+ r1 = VppIpRoute(
+ self, "1::3:0", 112, [VppRoutePath("1::3:1", wg0.sw_if_index)]
+ ).add_vpp_config()
+ else:
+ r1 = VppIpRoute(
+ self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+
+ # prepare and send a handshake response
+ # expect a keepalive message
+ resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=is_ip6)
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0], is_ip6=is_ip6)
+ self.assertEqual(0, len(b))
+
+ # prepare and send data packets
+ # expect to receive them decrypted
+ if is_ip6:
+ ip_header = IPv6(src="1::3:1", dst=self.pg0.remote_ip6, hlim=20)
+ else:
+ ip_header = IP(src="10.11.3.1", dst=self.pg0.remote_ip4, ttl=20)
+ packet_len_opts = (
+ 2500, # two buffers
+ 1500, # one buffer
+ 4500, # three buffers
+ 1910 if is_ip6 else 1950, # auth tag is not contiguous
+ )
+ txs = []
+ for l in packet_len_opts:
+ txs.append(
+ peer_1.mk_tunnel_header(self.pg1, is_ip6=is_ip6)
+ / Wireguard(message_type=4, reserved_zero=0)
+ / WireguardTransport(
+ receiver_index=peer_1.sender,
+ counter=len(txs),
+ encrypted_encapsulated_packet=peer_1.encrypt_transport(
+ ip_header / UDP(sport=222, dport=223) / Raw(b"\xfe" * l)
+ ),
+ )
+ )
+ rxs = self.send_and_expect(self.pg1, txs, self.pg0)
+
+ # verify decrypted packets
+ for i, l in enumerate(packet_len_opts):
+ if is_ip6:
+ self.assertEqual(rxs[i][IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(rxs[i][IPv6].hlim, ip_header.hlim - 1)
+ else:
+ self.assertEqual(rxs[i][IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rxs[i][IP].ttl, ip_header.ttl - 1)
+ self.assertEqual(len(rxs[i][Raw]), l)
+ self.assertEqual(bytes(rxs[i][Raw]), b"\xfe" * l)
+
+ # prepare and send packets that will be rewritten into the wg interface
+ # expect data packets sent
+ if is_ip6:
+ ip_header = IPv6(src=self.pg0.remote_ip6, dst="1::3:2")
+ else:
+ ip_header = IP(src=self.pg0.remote_ip4, dst="10.11.3.2")
+ packet_len_opts = (
+ 2500, # two buffers
+ 1500, # one buffer
+ 4500, # three buffers
+ 1980 if is_ip6 else 2000, # no free space to write auth tag
+ )
+ txs = []
+ for l in packet_len_opts:
+ txs.append(
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / ip_header
+ / UDP(sport=555, dport=556)
+ / Raw(b"\xfe" * l)
+ )
+ rxs = self.send_and_expect(self.pg0, txs, self.pg1)
+
+ # verify the data packets
+ rxs_decrypted = peer_1.validate_encapped(
+ rxs, ip_header, is_tunnel_ip6=is_ip6, is_transport_ip6=is_ip6
+ )
+
+ for i, l in enumerate(packet_len_opts):
+ self.assertEqual(len(rxs_decrypted[i][Raw]), l)
+ self.assertEqual(bytes(rxs_decrypted[i][Raw]), b"\xfe" * l)
+
+ # remove configs
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+ def test_wg_large_packet_v4_sync(self):
+ """Large packet (v4, sync)"""
+ self._test_wg_large_packet_tmpl(is_async=False, is_ip6=False)
+
+ def test_wg_large_packet_v6_sync(self):
+ """Large packet (v6, sync)"""
+ self._test_wg_large_packet_tmpl(is_async=False, is_ip6=True)
+
+ def test_wg_large_packet_v4_async(self):
+ """Large packet (v4, async)"""
+ self._test_wg_large_packet_tmpl(is_async=True, is_ip6=False)
+
+ def test_wg_large_packet_v6_async(self):
+ """Large packet (v6, async)"""
+ self._test_wg_large_packet_tmpl(is_async=True, is_ip6=True)
+
+ def test_wg_lack_of_buf_headroom(self):
+ """Lack of buffer's headroom (v6 vxlan over v6 wg)"""
+ port = 12323
+
+ # create wg interface
+ wg0 = VppWgInterface(self, self.pg1.local_ip6, port).add_vpp_config()
+ wg0.admin_up()
+ wg0.config_ip6()
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # create a peer
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip6, port + 1, ["::/0"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # create a route to enable communication between wg interface addresses
+ r1 = VppIpRoute(
+ self, wg0.remote_ip6, 128, [VppRoutePath("0.0.0.0", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(1, timeout=2)
+
+ # prepare and send a handshake response
+ # expect a keepalive message
+ resp = peer_1.consume_init(rxs[0], self.pg1, is_ip6=True)
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0], is_ip6=True)
+ self.assertEqual(0, len(b))
+
+ # create vxlan interface over the wg interface
+ vxlan0 = VppVxlanTunnel(self, src=wg0.local_ip6, dst=wg0.remote_ip6, vni=1111)
+ vxlan0.add_vpp_config()
+
+ # create bridge domain
+ bd1 = VppBridgeDomain(self, bd_id=1)
+ bd1.add_vpp_config()
+ # add the vxlan interface and pg0 to the bridge domain
+ bd1_ports = (
+ VppBridgeDomainPort(self, bd1, vxlan0).add_vpp_config(),
+ VppBridgeDomainPort(self, bd1, self.pg0).add_vpp_config(),
+ )
+
+ # prepare and send packets that will be rewritten into the vxlan interface
+ # expect they to be rewritten into the wg interface then and data packets sent
+ tx = (
+ Ether(dst="00:00:00:00:00:01", src="00:00:00:00:00:02")
+ / IPv6(src="::1", dst="::2", hlim=20)
+ / UDP(sport=1111, dport=1112)
+ / Raw(b"\xfe" * 1900)
+ )
+ rxs = self.send_and_expect(self.pg0, [tx] * 5, self.pg1)
+
+ # verify the data packet
+ for rx in rxs:
+ rx_decrypted = IPv6(peer_1.decrypt_transport(rx, is_ip6=True))
+
+ self.assertEqual(rx_decrypted[VXLAN].vni, vxlan0.vni)
+ inner = rx_decrypted[VXLAN].payload
+
+ # check the original packet is present
+ self.assertEqual(inner[IPv6].dst, tx[IPv6].dst)
+ self.assertEqual(inner[IPv6].hlim, tx[IPv6].hlim)
+ self.assertEqual(len(inner[Raw]), len(tx[Raw]))
+ self.assertEqual(bytes(inner[Raw]), bytes(tx[Raw]))
+
+ # remove configs
+ for bdp in bd1_ports:
+ bdp.remove_vpp_config()
+ bd1.remove_vpp_config()
+ vxlan0.remove_vpp_config()
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()
+
+
+@tag_fixme_vpp_debug
class WireguardHandoffTests(TestWg):
"""Wireguard Tests in multi worker setup"""
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, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
).add_vpp_config()
+ # skip the first automatic handshake
+ self.pg1.get_capture(1, timeout=HANDSHAKE_JITTER)
+
# send a valid handsake init for which we expect a response
p = peer_1.mk_handshake(self.pg1)
self.assertEqual(rx[IP].ttl, 19)
# send a packets that are routed into the tunnel
- # from owrker 0
+ # from worker 0
rxs = self.send_and_expect(self.pg0, pe * 255, self.pg1, worker=0)
peer_1.validate_encapped(rxs, pe)
@unittest.skip("test disabled")
def test_wg_multi_interface(self):
"""Multi-tunnel on the same port"""
+
+
+@unittest.skipIf(
+ "wireguard" in config.excluded_plugins, "Exclude Wireguard plugin tests"
+)
+@tag_run_solo
+class TestWgFIB(VppTestCase):
+ """Wireguard FIB Test Case"""
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestWgFIB, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestWgFIB, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestWgFIB, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+ super(TestWgFIB, self).tearDown()
+
+ def test_wg_fib_tracking(self):
+ """FIB tracking"""
+ port = 12323
+
+ # create wg interface
+ 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()
+
+ # create a peer
+ peer_1 = VppWgPeer(
+ self, wg0, self.pg1.remote_ip4, port + 1, ["10.11.3.0/24"]
+ ).add_vpp_config()
+ self.assertEqual(len(self.vapi.wireguard_peers_dump()), 1)
+
+ # create a route to rewrite traffic into the wg interface
+ r1 = VppIpRoute(
+ self, "10.11.3.0", 24, [VppRoutePath("10.11.3.1", wg0.sw_if_index)]
+ ).add_vpp_config()
+
+ # resolve ARP and expect the adjacency to update
+ self.pg1.resolve_arp()
+
+ # wait for the peer to send a handshake initiation
+ rxs = self.pg1.get_capture(2, timeout=6)
+
+ # prepare and send a handshake response
+ # expect a keepalive message
+ resp = peer_1.consume_init(rxs[1], self.pg1)
+ rxs = self.send_and_expect(self.pg1, [resp], self.pg1)
+
+ # verify the keepalive message
+ b = peer_1.decrypt_transport(rxs[0])
+ self.assertEqual(0, len(b))
+
+ # prepare and send a packet that will be rewritten into the wg interface
+ # expect a data packet sent
+ 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()
+ )
+ rxs = self.send_and_expect(self.pg0, [p], self.pg1)
+
+ # verify the data packet
+ peer_1.validate_encapped(rxs, p)
+
+ # remove configs
+ r1.remove_vpp_config()
+ peer_1.remove_vpp_config()
+ wg0.remove_vpp_config()