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161 lines
6.1 KiB
161 lines
6.1 KiB
#!/usr/bin/env python3
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# Copyright (c) 2020 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""
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Test addr relay
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"""
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from test_framework.messages import (
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CAddress,
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NODE_NETWORK,
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NODE_WITNESS,
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msg_addr,
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)
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from test_framework.p2p import (
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P2PInterface,
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p2p_lock,
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)
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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)
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import random
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import time
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ADDRS = []
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for i in range(10):
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addr = CAddress()
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addr.time = int(time.time()) + i
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addr.nServices = NODE_NETWORK | NODE_WITNESS
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addr.ip = "123.123.123.{}".format(i % 256)
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addr.port = 9333 + i
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ADDRS.append(addr)
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class AddrReceiver(P2PInterface):
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_tokens = 1
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def on_addr(self, message):
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for addr in message.addrs:
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assert_equal(addr.nServices, 9)
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assert addr.ip.startswith('123.123.123.')
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assert (9333 <= addr.port < 9343)
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def on_getaddr(self, message):
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# When the node sends us a getaddr, it increments the addr relay tokens for the connection by 1000
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self._tokens += 1000
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@property
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def tokens(self):
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with p2p_lock:
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return self._tokens
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def increment_tokens(self, n):
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# When we move mocktime forward, the node increments the addr relay tokens for its peers
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with p2p_lock:
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self._tokens += n
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class AddrTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = False
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self.num_nodes = 1
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self.extra_args = [["-whitelist=addr@127.0.0.1"]]
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def run_test(self):
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self.log.info('Create connection that sends addr messages')
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addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
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msg = msg_addr()
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self.log.info('Send too-large addr message')
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msg.addrs = ADDRS * 101
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with self.nodes[0].assert_debug_log(['addr message size = 1010']):
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addr_source.send_and_ping(msg)
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self.log.info('Check that addr message content is relayed and added to addrman')
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addr_receiver = self.nodes[0].add_p2p_connection(AddrReceiver())
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msg.addrs = ADDRS
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with self.nodes[0].assert_debug_log([
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'Added 10 addresses from 127.0.0.1: 0 tried',
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'received: addr (301 bytes) peer=0',
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'sending addr (301 bytes) peer=1',
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]):
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addr_source.send_and_ping(msg)
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self.nodes[0].setmocktime(int(time.time()) + 30 * 60)
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addr_receiver.sync_with_ping()
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self.rate_limit_tests()
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def setup_rand_addr_msg(self, num):
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addrs = []
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for i in range(num):
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addr = CAddress()
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addr.time = self.mocktime + i
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addr.nServices = NODE_NETWORK | NODE_WITNESS
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addr.ip = f"{random.randrange(128,169)}.{random.randrange(1,255)}.{random.randrange(1,255)}.{random.randrange(1,255)}"
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addr.port = 9333
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addrs.append(addr)
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msg = msg_addr()
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msg.addrs = addrs
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return msg
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def send_addrs_and_test_rate_limiting(self, peer, no_relay, *, new_addrs, total_addrs):
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"""Send an addr message and check that the number of addresses processed and rate-limited is as expected"""
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peer.send_and_ping(self.setup_rand_addr_msg(new_addrs))
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peerinfo = self.nodes[0].getpeerinfo()[0]
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addrs_processed = peerinfo['addr_processed']
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addrs_rate_limited = peerinfo['addr_rate_limited']
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self.log.debug(f"addrs_processed = {addrs_processed}, addrs_rate_limited = {addrs_rate_limited}")
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if no_relay:
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assert_equal(addrs_processed, 0)
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assert_equal(addrs_rate_limited, 0)
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else:
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assert_equal(addrs_processed, min(total_addrs, peer.tokens))
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assert_equal(addrs_rate_limited, max(0, total_addrs - peer.tokens))
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def rate_limit_tests(self):
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self.mocktime = int(time.time())
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self.restart_node(0, [])
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self.nodes[0].setmocktime(self.mocktime)
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for conn_type, no_relay in [("outbound-full-relay", False), ("block-relay-only", True), ("inbound", False)]:
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self.log.info(f'Test rate limiting of addr processing for {conn_type} peers')
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if conn_type == "inbound":
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peer = self.nodes[0].add_p2p_connection(AddrReceiver())
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else:
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peer = self.nodes[0].add_outbound_p2p_connection(AddrReceiver(), p2p_idx=0, connection_type=conn_type)
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# Send 600 addresses. For all but the block-relay-only peer this should result in addresses being processed.
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self.send_addrs_and_test_rate_limiting(peer, no_relay, new_addrs=600, total_addrs=600)
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# Send 600 more addresses. For the outbound-full-relay peer (which we send a GETADDR, and thus will
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# process up to 1001 incoming addresses), this means more addresses will be processed.
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self.send_addrs_and_test_rate_limiting(peer, no_relay, new_addrs=600, total_addrs=1200)
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# Send 10 more. As we reached the processing limit for all nodes, no more addresses should be procesesd.
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self.send_addrs_and_test_rate_limiting(peer, no_relay, new_addrs=10, total_addrs=1210)
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# Advance the time by 100 seconds, permitting the processing of 10 more addresses.
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# Send 200 and verify that 10 are processed.
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self.mocktime += 100
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self.nodes[0].setmocktime(self.mocktime)
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peer.increment_tokens(10)
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self.send_addrs_and_test_rate_limiting(peer, no_relay, new_addrs=200, total_addrs=1410)
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# Advance the time by 1000 seconds, permitting the processing of 100 more addresses.
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# Send 200 and verify that 100 are processed.
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self.mocktime += 1000
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self.nodes[0].setmocktime(self.mocktime)
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peer.increment_tokens(100)
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self.send_addrs_and_test_rate_limiting(peer, no_relay, new_addrs=200, total_addrs=1610)
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self.nodes[0].disconnect_p2ps()
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if __name__ == '__main__':
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AddrTest().main()
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