-BEGIN VERIFY SCRIPT- sed -i 's/\.mininode/\.p2p/g' $(git grep -l "mininode") git mv test/functional/test_framework/mininode.py test/functional/test_framework/p2p.py -END VERIFY SCRIPT-
158 lines
6.4 KiB
Python
Executable file
158 lines
6.4 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# Copyright (c) 2017-2020 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 message sending before handshake completion.
|
|
|
|
A node should never send anything other than VERSION/VERACK until it's
|
|
received a VERACK.
|
|
|
|
This test connects to a node and sends it a few messages, trying to entice it
|
|
into sending us something it shouldn't."""
|
|
|
|
import time
|
|
|
|
from test_framework.messages import (
|
|
msg_getaddr,
|
|
msg_ping,
|
|
msg_version,
|
|
)
|
|
from test_framework.p2p import p2p_lock, P2PInterface
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import (
|
|
assert_equal,
|
|
assert_greater_than_or_equal,
|
|
wait_until,
|
|
)
|
|
|
|
DISCOURAGEMENT_THRESHOLD = 100
|
|
|
|
|
|
class LazyPeer(P2PInterface):
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.unexpected_msg = False
|
|
self.ever_connected = False
|
|
|
|
def bad_message(self, message):
|
|
self.unexpected_msg = True
|
|
self.log.info("should not have received message: %s" % message.msgtype)
|
|
|
|
def on_open(self):
|
|
self.ever_connected = True
|
|
|
|
# Does not respond to "version" with "verack"
|
|
def on_version(self, message): self.bad_message(message)
|
|
def on_verack(self, message): self.bad_message(message)
|
|
def on_inv(self, message): self.bad_message(message)
|
|
def on_addr(self, message): self.bad_message(message)
|
|
def on_getdata(self, message): self.bad_message(message)
|
|
def on_getblocks(self, message): self.bad_message(message)
|
|
def on_tx(self, message): self.bad_message(message)
|
|
def on_block(self, message): self.bad_message(message)
|
|
def on_getaddr(self, message): self.bad_message(message)
|
|
def on_headers(self, message): self.bad_message(message)
|
|
def on_getheaders(self, message): self.bad_message(message)
|
|
def on_ping(self, message): self.bad_message(message)
|
|
def on_mempool(self, message): self.bad_message(message)
|
|
def on_pong(self, message): self.bad_message(message)
|
|
def on_feefilter(self, message): self.bad_message(message)
|
|
def on_sendheaders(self, message): self.bad_message(message)
|
|
def on_sendcmpct(self, message): self.bad_message(message)
|
|
def on_cmpctblock(self, message): self.bad_message(message)
|
|
def on_getblocktxn(self, message): self.bad_message(message)
|
|
def on_blocktxn(self, message): self.bad_message(message)
|
|
|
|
|
|
# Peer that sends a version but not a verack.
|
|
class NoVerackIdlePeer(LazyPeer):
|
|
def __init__(self):
|
|
self.version_received = False
|
|
super().__init__()
|
|
|
|
def on_verack(self, message): pass
|
|
# When version is received, don't reply with a verack. Instead, see if the
|
|
# node will give us a message that it shouldn't. This is not an exhaustive
|
|
# list!
|
|
def on_version(self, message):
|
|
self.version_received = True
|
|
self.send_message(msg_ping())
|
|
self.send_message(msg_getaddr())
|
|
|
|
|
|
class P2PVersionStore(P2PInterface):
|
|
version_received = None
|
|
|
|
def on_version(self, msg):
|
|
# Responds with an appropriate verack
|
|
super().on_version(msg)
|
|
self.version_received = msg
|
|
|
|
|
|
class P2PLeakTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
|
|
def run_test(self):
|
|
# Peer that never sends a version. We will send a bunch of messages
|
|
# from this peer anyway and verify eventual disconnection.
|
|
no_version_disconnect_peer = self.nodes[0].add_p2p_connection(
|
|
LazyPeer(), send_version=False, wait_for_verack=False)
|
|
|
|
# Another peer that never sends a version, nor any other messages. It shouldn't receive anything from the node.
|
|
no_version_idle_peer = self.nodes[0].add_p2p_connection(LazyPeer(), send_version=False, wait_for_verack=False)
|
|
|
|
# Peer that sends a version but not a verack.
|
|
no_verack_idle_peer = self.nodes[0].add_p2p_connection(NoVerackIdlePeer(), wait_for_verack=False)
|
|
|
|
# Send enough ping messages (any non-version message will do) prior to sending
|
|
# version to reach the peer discouragement threshold. This should get us disconnected.
|
|
for _ in range(DISCOURAGEMENT_THRESHOLD):
|
|
no_version_disconnect_peer.send_message(msg_ping())
|
|
|
|
# Wait until we got the verack in response to the version. Though, don't wait for the node to receive the
|
|
# verack, since we never sent one
|
|
no_verack_idle_peer.wait_for_verack()
|
|
|
|
wait_until(lambda: no_version_disconnect_peer.ever_connected, timeout=10, lock=p2p_lock)
|
|
wait_until(lambda: no_version_idle_peer.ever_connected, timeout=10, lock=p2p_lock)
|
|
wait_until(lambda: no_verack_idle_peer.version_received, timeout=10, lock=p2p_lock)
|
|
|
|
# Mine a block and make sure that it's not sent to the connected peers
|
|
self.nodes[0].generate(nblocks=1)
|
|
|
|
#Give the node enough time to possibly leak out a message
|
|
time.sleep(5)
|
|
|
|
# Expect this peer to be disconnected for misbehavior
|
|
assert not no_version_disconnect_peer.is_connected
|
|
|
|
self.nodes[0].disconnect_p2ps()
|
|
|
|
# Make sure no unexpected messages came in
|
|
assert no_version_disconnect_peer.unexpected_msg == False
|
|
assert no_version_idle_peer.unexpected_msg == False
|
|
assert no_verack_idle_peer.unexpected_msg == False
|
|
|
|
self.log.info('Check that the version message does not leak the local address of the node')
|
|
p2p_version_store = self.nodes[0].add_p2p_connection(P2PVersionStore())
|
|
ver = p2p_version_store.version_received
|
|
# Check that received time is within one hour of now
|
|
assert_greater_than_or_equal(ver.nTime, time.time() - 3600)
|
|
assert_greater_than_or_equal(time.time() + 3600, ver.nTime)
|
|
assert_equal(ver.addrFrom.port, 0)
|
|
assert_equal(ver.addrFrom.ip, '0.0.0.0')
|
|
assert_equal(ver.nStartingHeight, 201)
|
|
assert_equal(ver.nRelay, 1)
|
|
|
|
self.log.info('Check that old peers are disconnected')
|
|
p2p_old_peer = self.nodes[0].add_p2p_connection(P2PInterface(), send_version=False, wait_for_verack=False)
|
|
old_version_msg = msg_version()
|
|
old_version_msg.nVersion = 31799
|
|
with self.nodes[0].assert_debug_log(['peer=4 using obsolete version 31799; disconnecting']):
|
|
p2p_old_peer.send_message(old_version_msg)
|
|
p2p_old_peer.wait_for_disconnect()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
P2PLeakTest().main()
|