Merge bitcoin/bitcoin#29699: test: check disconnection when sending sendaddrv2 after verack

b4c9ace test: check disconnection when sending sendaddrv2 after verack (brunoerg)

Pull request description:

  This PR adds test coverage for:
  https://github.com/bitcoin/bitcoin/blob/71b63195b30b2fa0dff20ebb262ce7566dd5d673/src/net_processing.cpp#L3796-L3807

ACKs for top commit:
  maflcko:
    lgtm ACK b4c9ace
  byaye:
    Tested ACK b4c9ace

Tree-SHA512: 2ad49a269cb64794b8d626941cf532acafdbe6e97f3da5ccb52f3201a6773d2f5e3d7d62ce4289334b85d578790d4dd5833f6b8ba54bd49a8418a20aee0c3e5f

Author: glozow

test/functional/p2p_addrv2_relay.py

@@ -11,6 +11,7 @@
 from test_framework.messages import (
     CAddress,
     msg_addrv2,
+    msg_sendaddrv2,
 )
 from test_framework.p2p import (
     P2PInterface,
@@ -75,6 +76,12 @@ def set_test_params(self):
         self.extra_args = [["-whitelist=addr@127.0.0.1"]]
 
     def run_test(self):
+        self.log.info('Check disconnection when sending sendaddrv2 after verack')
+        conn = self.nodes[0].add_p2p_connection(P2PInterface())
+        with self.nodes[0].assert_debug_log(['sendaddrv2 received after verack from peer=0; disconnecting']):
+            conn.send_message(msg_sendaddrv2())
+            conn.wait_for_disconnect()
+
         self.log.info('Create connection that sends addrv2 messages')
         addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
         msg = msg_addrv2()
@@ -89,8 +96,8 @@ def run_test(self):
         msg.addrs = ADDRS
         msg_size = calc_addrv2_msg_size(ADDRS)
         with self.nodes[0].assert_debug_log([
-                f'received: addrv2 ({msg_size} bytes) peer=0',
-                f'sending addrv2 ({msg_size} bytes) peer=1',
+                f'received: addrv2 ({msg_size} bytes) peer=1',
+                f'sending addrv2 ({msg_size} bytes) peer=2',
         ]):
             addr_source.send_and_ping(msg)
             self.nodes[0].setmocktime(int(time.time()) + 30 * 60)