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-rwxr-xr-xtest/functional/p2p_leak_tx.py57
1 files changed, 57 insertions, 0 deletions
diff --git a/test/functional/p2p_leak_tx.py b/test/functional/p2p_leak_tx.py
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+++ b/test/functional/p2p_leak_tx.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017-2018 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 that we don't leak txs to inbound peers that we haven't yet announced to"""
+
+from test_framework.messages import msg_getdata, CInv
+from test_framework.mininode import P2PDataStore
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+ assert_equal,
+)
+
+
+class P2PNode(P2PDataStore):
+ def on_inv(self, msg):
+ pass
+
+
+class P2PLeakTxTest(BitcoinTestFramework):
+ def set_test_params(self):
+ self.num_nodes = 1
+
+ def skip_test_if_missing_module(self):
+ self.skip_if_no_wallet()
+
+ def run_test(self):
+ gen_node = self.nodes[0] # The block and tx generating node
+ gen_node.generate(1)
+
+ inbound_peer = self.nodes[0].add_p2p_connection(P2PNode()) # An "attacking" inbound peer
+
+ MAX_REPEATS = 100
+ self.log.info("Running test up to {} times.".format(MAX_REPEATS))
+ for i in range(MAX_REPEATS):
+ self.log.info('Run repeat {}'.format(i + 1))
+ txid = gen_node.sendtoaddress(gen_node.getnewaddress(), 0.01)
+
+ want_tx = msg_getdata()
+ want_tx.inv.append(CInv(t=1, h=int(txid, 16)))
+ inbound_peer.last_message.pop('notfound', None)
+ inbound_peer.send_message(want_tx)
+ inbound_peer.sync_with_ping()
+
+ if inbound_peer.last_message.get('notfound'):
+ self.log.debug('tx {} was not yet announced to us.'.format(txid))
+ self.log.debug("node has responded with a notfound message. End test.")
+ assert_equal(inbound_peer.last_message['notfound'].vec[0].hash, int(txid, 16))
+ inbound_peer.last_message.pop('notfound')
+ break
+ else:
+ self.log.debug('tx {} was already announced to us. Try test again.'.format(txid))
+ assert int(txid, 16) in [inv.hash for inv in inbound_peer.last_message['inv'].inv]
+
+
+if __name__ == '__main__':
+ P2PLeakTxTest().main()