From 53badfc6839da351c1d1dd7f1422418b0696c580 Mon Sep 17 00:00:00 2001 From: Artem Glazychev Date: Tue, 24 Jan 2023 16:10:29 +0700 Subject: wireguard: sending the first handshake After creating a peer, we send a handshake request. But it's not quite right to call wg_send_keepalive() directly. According to documentation, handshake initiation is sent after (REKEY_TIMEOUT + jitter) ms. Since it's the first one - we don't need to take REKEY_TIMEOUT into account, but we still have jitter. It also makes no sense to immediately send keepalives, because the connection is not created yet. Type: fix Signed-off-by: Artem Glazychev Change-Id: I61707e4be79be65abc3396b5f1dbd48ecbf7ba60 --- test/test_wireguard.py | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'test/test_wireguard.py') diff --git a/test/test_wireguard.py b/test/test_wireguard.py index 80ebdd89aa6..72a317ca8c2 100644 --- a/test/test_wireguard.py +++ b/test/test_wireguard.py @@ -147,6 +147,8 @@ 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): @@ -672,6 +674,9 @@ class TestWg(VppTestCase): 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) @@ -764,6 +769,9 @@ class TestWg(VppTestCase): # 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) @@ -829,6 +837,9 @@ class TestWg(VppTestCase): ).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) @@ -893,6 +904,9 @@ class TestWg(VppTestCase): ).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) @@ -963,6 +977,9 @@ class TestWg(VppTestCase): ).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) @@ -2098,6 +2115,9 @@ class TestWg(VppTestCase): 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 = [] @@ -2129,6 +2149,9 @@ class TestWg(VppTestCase): 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) @@ -2282,6 +2305,10 @@ class TestWg(VppTestCase): 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() @@ -2472,6 +2499,9 @@ class WireguardHandoffTests(TestWg): 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() @@ -2481,6 +2511,9 @@ class WireguardHandoffTests(TestWg): 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) -- cgit 1.2.3-korg