fa78a2fc67
If a node has not announced a tx at all, then it should respond to getdata messages for that tx with notfound, to avoid leaking tx origination privacy.
58 lines
2.1 KiB
Python
Executable file
58 lines
2.1 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2017-2018 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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"""Test that we don't leak txs to inbound peers that we haven't yet announced to"""
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from test_framework.messages import msg_getdata, CInv
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from test_framework.mininode import P2PDataStore
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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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class P2PNode(P2PDataStore):
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def on_inv(self, msg):
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pass
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class P2PLeakTxTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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gen_node = self.nodes[0] # The block and tx generating node
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gen_node.generate(1)
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inbound_peer = self.nodes[0].add_p2p_connection(P2PNode()) # An "attacking" inbound peer
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MAX_REPEATS = 100
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self.log.info("Running test up to {} times.".format(MAX_REPEATS))
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for i in range(MAX_REPEATS):
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self.log.info('Run repeat {}'.format(i + 1))
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txid = gen_node.sendtoaddress(gen_node.getnewaddress(), 0.01)
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want_tx = msg_getdata()
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want_tx.inv.append(CInv(t=1, h=int(txid, 16)))
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inbound_peer.last_message.pop('notfound', None)
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inbound_peer.send_message(want_tx)
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inbound_peer.sync_with_ping()
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if inbound_peer.last_message.get('notfound'):
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self.log.debug('tx {} was not yet announced to us.'.format(txid))
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self.log.debug("node has responded with a notfound message. End test.")
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assert_equal(inbound_peer.last_message['notfound'].vec[0].hash, int(txid, 16))
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inbound_peer.last_message.pop('notfound')
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break
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else:
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self.log.debug('tx {} was already announced to us. Try test again.'.format(txid))
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assert int(txid, 16) in [inv.hash for inv in inbound_peer.last_message['inv'].inv]
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if __name__ == '__main__':
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P2PLeakTxTest().main()
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