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#!/usr/bin/env python3
# Copyright (c) 2020 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""
Test addr relay
"""
from test_framework.messages import (
CAddress,
NODE_NETWORK,
NODE_WITNESS,
msg_addr,
)
from test_framework.p2p import P2PInterface
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
)
import time
# Keep this with length <= 10. Addresses from larger messages are not relayed.
ADDRS = []
num_ipv4_addrs = 10
for i in range(num_ipv4_addrs):
addr = CAddress()
addr.time = int(time.time()) + i
addr.nServices = NODE_NETWORK | NODE_WITNESS
addr.ip = "123.123.123.{}".format(i % 256)
addr.port = 8333 + i
ADDRS.append(addr)
class AddrReceiver(P2PInterface):
num_ipv4_received = 0
def on_addr(self, message):
for addr in message.addrs:
assert_equal(addr.nServices, 9)
if not 8333 <= addr.port < 8343:
raise AssertionError("Invalid addr.port of {} (8333-8342 expected)".format(addr.port))
assert addr.ip.startswith('123.123.123.')
self.num_ipv4_received += 1
class AddrTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
def run_test(self):
self.log.info('Create connection that sends addr messages')
addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
msg = msg_addr()
self.log.info('Send too-large addr message')
msg.addrs = ADDRS * 101 # more than 1000 addresses in one message
with self.nodes[0].assert_debug_log(['addr message size = 1010']):
addr_source.send_and_ping(msg)
self.log.info('Check that addr message content is relayed and added to addrman')
num_receivers = 7
receivers = []
for _ in range(num_receivers):
receivers.append(self.nodes[0].add_p2p_connection(AddrReceiver()))
msg.addrs = ADDRS
with self.nodes[0].assert_debug_log(
[
'Added {} addresses from 127.0.0.1: 0 tried'.format(num_ipv4_addrs),
'received: addr (301 bytes) peer=0',
]
):
addr_source.send_and_ping(msg)
self.nodes[0].setmocktime(int(time.time()) + 30 * 60)
for receiver in receivers:
receiver.sync_with_ping()
total_ipv4_received = sum(r.num_ipv4_received for r in receivers)
# Every IPv4 address must be relayed to two peers, other than the
# originating node (addr_source).
ipv4_branching_factor = 2
assert_equal(total_ipv4_received, num_ipv4_addrs * ipv4_branching_factor)
if __name__ == '__main__':
AddrTest().main()
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