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Functional tests for addr rate limiting

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Github-Pull: #22387
Rebased-From: b4ece8a1cda69cc268d39d21bba59c51fa2fb9ed
This commit is contained in:
Pieter Wuille 2021-07-01 16:02:05 -07:00
parent 8df3e5bd84
commit aaa4833fc9
1 changed files with 77 additions and 0 deletions
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77
test/functional/p2p_addr_relay.py
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@ -16,7 +16,10 @@ from test_framework.p2p import P2PInterface
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_greater_than_or_equal,
)
import os
import random
import time
ADDRS = []
@ -43,6 +46,19 @@ class AddrTest(BitcoinTestFramework):
self.num_nodes = 1
self.extra_args = [["-whitelist=addr@127.0.0.1"]]
def setup_rand_addr_msg(self, num):
addrs = []
for i in range(num):
addr = CAddress()
addr.time = self.mocktime + i
addr.nServices = NODE_NETWORK | NODE_WITNESS
addr.ip = "%i.%i.%i.%i" % (random.randrange(128,169), random.randrange(1,255), random.randrange(1,255), random.randrange(1,255))
addr.port = 8333
addrs.append(addr)
msg = msg_addr()
msg.addrs = addrs
return msg
def run_test(self):
self.log.info('Create connection that sends addr messages')
addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
@ -65,6 +81,67 @@ class AddrTest(BitcoinTestFramework):
self.nodes[0].setmocktime(int(time.time()) + 30 * 60)
addr_receiver.sync_with_ping()
# The following test is backported. The original test also verified behavior for
# outbound peers, but lacking add_outbound_p2p_connection, those tests have been
# removed here.
for contype, tokens, no_relay in [("inbound", 1, False)]:
self.log.info('Test rate limiting of addr processing for %s peers' % contype)
self.stop_node(0)
os.remove(os.path.join(self.nodes[0].datadir, "regtest", "peers.dat"))
self.start_node(0, [])
self.mocktime = int(time.time())
self.nodes[0].setmocktime(self.mocktime)
peer = self.nodes[0].add_p2p_connection(AddrReceiver())
# Check that we start off with empty addrman
addr_count_0 = len(self.nodes[0].getnodeaddresses(0))
assert_equal(addr_count_0, 0)
# Send 600 addresses. For all but the block-relay-only peer this should result in at least 1 address.
peer.send_and_ping(self.setup_rand_addr_msg(600))
addr_count_1 = len(self.nodes[0].getnodeaddresses(0))
assert_greater_than_or_equal(tokens, addr_count_1)
assert_greater_than_or_equal(addr_count_0 + 600, addr_count_1)
assert_equal(addr_count_1 > addr_count_0, tokens > 0)
# Send 600 more addresses. For the outbound-full-relay peer (which we send a GETADDR, and thus will
# process up to 1001 incoming addresses), this means more entries will appear.
peer.send_and_ping(self.setup_rand_addr_msg(600))
addr_count_2 = len(self.nodes[0].getnodeaddresses(0))
assert_greater_than_or_equal(tokens, addr_count_2)
assert_greater_than_or_equal(addr_count_1 + 600, addr_count_2)
assert_equal(addr_count_2 > addr_count_1, tokens > 600)
# Send 10 more. As we reached the processing limit for all nodes, this should have no effect.
peer.send_and_ping(self.setup_rand_addr_msg(10))
addr_count_3 = len(self.nodes[0].getnodeaddresses(0))
assert_greater_than_or_equal(tokens, addr_count_3)
assert_equal(addr_count_2, addr_count_3)
# Advance the time by 100 seconds, permitting the processing of 10 more addresses. Send 200,
# but verify that no more than 10 are processed.
self.mocktime += 100
self.nodes[0].setmocktime(self.mocktime)
new_tokens = 0 if no_relay else 10
tokens += new_tokens
peer.send_and_ping(self.setup_rand_addr_msg(200))
addr_count_4 = len(self.nodes[0].getnodeaddresses(0))
assert_greater_than_or_equal(tokens, addr_count_4)
assert_greater_than_or_equal(addr_count_3 + new_tokens, addr_count_4)
# Advance the time by 1000 seconds, permitting the processing of 100 more addresses. Send 200,
# but verify that no more than 100 are processed (and at least some).
self.mocktime += 1000
self.nodes[0].setmocktime(self.mocktime)
new_tokens = 0 if no_relay else 100
tokens += new_tokens
peer.send_and_ping(self.setup_rand_addr_msg(200))
addr_count_5 = len(self.nodes[0].getnodeaddresses(0))
assert_greater_than_or_equal(tokens, addr_count_5)
assert_greater_than_or_equal(addr_count_4 + new_tokens, addr_count_5)
assert_equal(addr_count_5 > addr_count_4, not no_relay)
self.nodes[0].disconnect_p2ps()
if __name__ == '__main__':
AddrTest().main()