91 lines
3 KiB
Python
Executable file
91 lines
3 KiB
Python
Executable file
#!/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 response caching"""
|
|
|
|
import time
|
|
|
|
from test_framework.messages import msg_getaddr
|
|
from test_framework.p2p import (
|
|
P2PInterface,
|
|
p2p_lock
|
|
)
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import (
|
|
assert_equal,
|
|
)
|
|
|
|
# As defined in net_processing.
|
|
MAX_ADDR_TO_SEND = 1000
|
|
MAX_PCT_ADDR_TO_SEND = 23
|
|
|
|
class AddrReceiver(P2PInterface):
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.received_addrs = None
|
|
|
|
def get_received_addrs(self):
|
|
with p2p_lock:
|
|
return self.received_addrs
|
|
|
|
def on_addr(self, message):
|
|
self.received_addrs = []
|
|
for addr in message.addrs:
|
|
self.received_addrs.append(addr.ip)
|
|
|
|
def addr_received(self):
|
|
return self.received_addrs is not None
|
|
|
|
|
|
class AddrTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.setup_clean_chain = False
|
|
self.num_nodes = 1
|
|
|
|
def run_test(self):
|
|
self.log.info('Fill peer AddrMan with a lot of records')
|
|
for i in range(10000):
|
|
first_octet = i >> 8
|
|
second_octet = i % 256
|
|
a = "{}.{}.1.1".format(first_octet, second_octet)
|
|
self.nodes[0].addpeeraddress(a, 8333)
|
|
|
|
# Need to make sure we hit MAX_ADDR_TO_SEND records in the addr response later because
|
|
# only a fraction of all known addresses can be cached and returned.
|
|
assert(len(self.nodes[0].getnodeaddresses(0)) > int(MAX_ADDR_TO_SEND / (MAX_PCT_ADDR_TO_SEND / 100)))
|
|
|
|
responses = []
|
|
self.log.info('Send many addr requests within short time to receive same response')
|
|
N = 5
|
|
cur_mock_time = int(time.time())
|
|
for i in range(N):
|
|
addr_receiver = self.nodes[0].add_p2p_connection(AddrReceiver())
|
|
addr_receiver.send_and_ping(msg_getaddr())
|
|
# Trigger response
|
|
cur_mock_time += 5 * 60
|
|
self.nodes[0].setmocktime(cur_mock_time)
|
|
addr_receiver.wait_until(addr_receiver.addr_received)
|
|
responses.append(addr_receiver.get_received_addrs())
|
|
for response in responses[1:]:
|
|
assert_equal(response, responses[0])
|
|
assert(len(response) == MAX_ADDR_TO_SEND)
|
|
|
|
cur_mock_time += 3 * 24 * 60 * 60
|
|
self.nodes[0].setmocktime(cur_mock_time)
|
|
|
|
self.log.info('After time passed, see a new response to addr request')
|
|
last_addr_receiver = self.nodes[0].add_p2p_connection(AddrReceiver())
|
|
last_addr_receiver.send_and_ping(msg_getaddr())
|
|
# Trigger response
|
|
cur_mock_time += 5 * 60
|
|
self.nodes[0].setmocktime(cur_mock_time)
|
|
last_addr_receiver.wait_until(last_addr_receiver.addr_received)
|
|
# new response is different
|
|
assert(set(responses[0]) != set(last_addr_receiver.get_received_addrs()))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
AddrTest().main()
|