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-rwxr-xr-xqa/rpc-tests/p2p-leaktests.py143
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diff --git a/qa/rpc-tests/p2p-leaktests.py b/qa/rpc-tests/p2p-leaktests.py
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+++ b/qa/rpc-tests/p2p-leaktests.py
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+#!/usr/bin/env python3
+# Copyright (c) 2017 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/REJECT until it's
+received a VERACK.
+
+This test connects to a node and sends it a few messages, trying to intice it
+into sending us something it shouldn't.
+"""
+
+from test_framework.mininode import *
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+
+banscore = 10
+
+class CLazyNode(NodeConnCB):
+ def __init__(self):
+ self.connection = None
+ self.unexpected_msg = False
+ self.connected = False
+ super().__init__()
+
+ def add_connection(self, conn):
+ self.connection = conn
+
+ def send_message(self, message):
+ self.connection.send_message(message)
+
+ def bad_message(self, message):
+ self.unexpected_msg = True
+ print("should not have received message: %s" % message.command)
+
+ def on_open(self, conn):
+ self.connected = True
+
+ def on_version(self, conn, message): self.bad_message(message)
+ def on_verack(self, conn, message): self.bad_message(message)
+ def on_reject(self, conn, message): self.bad_message(message)
+ def on_inv(self, conn, message): self.bad_message(message)
+ def on_addr(self, conn, message): self.bad_message(message)
+ def on_alert(self, conn, message): self.bad_message(message)
+ def on_getdata(self, conn, message): self.bad_message(message)
+ def on_getblocks(self, conn, message): self.bad_message(message)
+ def on_tx(self, conn, message): self.bad_message(message)
+ def on_block(self, conn, message): self.bad_message(message)
+ def on_getaddr(self, conn, message): self.bad_message(message)
+ def on_headers(self, conn, message): self.bad_message(message)
+ def on_getheaders(self, conn, message): self.bad_message(message)
+ def on_ping(self, conn, message): self.bad_message(message)
+ def on_mempool(self, conn): self.bad_message(message)
+ def on_pong(self, conn, message): self.bad_message(message)
+ def on_feefilter(self, conn, message): self.bad_message(message)
+ def on_sendheaders(self, conn, message): self.bad_message(message)
+ def on_sendcmpct(self, conn, message): self.bad_message(message)
+ def on_cmpctblock(self, conn, message): self.bad_message(message)
+ def on_getblocktxn(self, conn, message): self.bad_message(message)
+ def on_blocktxn(self, conn, message): self.bad_message(message)
+
+# Node that never sends a version. We'll use this to send a bunch of messages
+# anyway, and eventually get disconnected.
+class CNodeNoVersionBan(CLazyNode):
+ def __init__(self):
+ super().__init__()
+
+ # send a bunch of veracks without sending a message. This should get us disconnected.
+ # NOTE: implementation-specific check here. Remove if bitcoind ban behavior changes
+ def on_open(self, conn):
+ super().on_open(conn)
+ for i in range(banscore):
+ self.send_message(msg_verack())
+
+ def on_reject(self, conn, message): pass
+
+# Node that never sends a version. This one just sits idle and hopes to receive
+# any message (it shouldn't!)
+class CNodeNoVersionIdle(CLazyNode):
+ def __init__(self):
+ super().__init__()
+
+# Node that sends a version but not a verack.
+class CNodeNoVerackIdle(CLazyNode):
+ def __init__(self):
+ self.version_received = False
+ super().__init__()
+
+ def on_reject(self, conn, message): pass
+ def on_verack(self, conn, 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, conn, message):
+ self.version_received = True
+ conn.send_message(msg_ping())
+ conn.send_message(msg_getaddr())
+
+class P2PLeakTest(BitcoinTestFramework):
+ def __init__(self):
+ super().__init__()
+ self.num_nodes = 1
+ def setup_network(self):
+ extra_args = [['-debug', '-banscore='+str(banscore)]
+ for i in range(self.num_nodes)]
+ self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, extra_args)
+
+ def run_test(self):
+ no_version_bannode = CNodeNoVersionBan()
+ no_version_idlenode = CNodeNoVersionIdle()
+ no_verack_idlenode = CNodeNoVerackIdle()
+
+ connections = []
+ connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], no_version_bannode, send_version=False))
+ connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], no_version_idlenode, send_version=False))
+ connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], no_verack_idlenode))
+ no_version_bannode.add_connection(connections[0])
+ no_version_idlenode.add_connection(connections[1])
+ no_verack_idlenode.add_connection(connections[2])
+
+ NetworkThread().start() # Start up network handling in another thread
+
+ assert(wait_until(lambda: no_version_bannode.connected and no_version_idlenode.connected and no_verack_idlenode.version_received, timeout=10))
+
+ # Mine a block and make sure that it's not sent to the connected nodes
+ self.nodes[0].generate(1)
+
+ #Give the node enough time to possibly leak out a message
+ time.sleep(5)
+
+ #This node should have been banned
+ assert(no_version_bannode.connection.state == "closed")
+
+ [conn.disconnect_node() for conn in connections]
+
+ # Make sure no unexpected messages came in
+ assert(no_version_bannode.unexpected_msg == False)
+ assert(no_version_idlenode.unexpected_msg == False)
+ assert(no_verack_idlenode.unexpected_msg == False)
+
+if __name__ == '__main__':
+ P2PLeakTest().main()