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118 lines
5.8 KiB
118 lines
5.8 KiB
#!/usr/bin/env python3
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# Copyright (c) 2019-2020 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 p2p blocksonly mode & block-relay-only connections."""
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import time
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from test_framework.blocktools import COINBASE_MATURITY
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from test_framework.messages import msg_tx
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from test_framework.p2p import P2PInterface, P2PTxInvStore
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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from test_framework.wallet import MiniWallet
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class P2PBlocksOnly(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 1
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self.extra_args = [["-blocksonly"]]
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def run_test(self):
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self.miniwallet = MiniWallet(self.nodes[0])
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# Add enough mature utxos to the wallet, so that all txs spend confirmed coins
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self.miniwallet.generate(2)
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self.nodes[0].generate(COINBASE_MATURITY)
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self.blocksonly_mode_tests()
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self.blocks_relay_conn_tests()
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def blocksonly_mode_tests(self):
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self.log.info("Tests with node running in -blocksonly mode")
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assert_equal(self.nodes[0].getnetworkinfo()['localrelay'], False)
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self.nodes[0].add_p2p_connection(P2PInterface())
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tx, txid, wtxid, tx_hex = self.check_p2p_tx_violation()
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self.log.info('Check that txs from rpc are not rejected and relayed to other peers')
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tx_relay_peer = self.nodes[0].add_p2p_connection(P2PInterface())
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assert_equal(self.nodes[0].getpeerinfo()[0]['relaytxes'], True)
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assert_equal(self.nodes[0].testmempoolaccept([tx_hex])[0]['allowed'], True)
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with self.nodes[0].assert_debug_log(['received getdata for: wtx {} peer=1'.format(wtxid)]):
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self.nodes[0].sendrawtransaction(tx_hex)
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tx_relay_peer.wait_for_tx(txid)
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assert_equal(self.nodes[0].getmempoolinfo()['size'], 1)
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self.log.info("Restarting node 0 with relay permission and blocksonly")
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self.restart_node(0, ["-persistmempool=0", "-whitelist=relay@127.0.0.1", "-blocksonly"])
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assert_equal(self.nodes[0].getrawmempool(), [])
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first_peer = self.nodes[0].add_p2p_connection(P2PInterface())
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second_peer = self.nodes[0].add_p2p_connection(P2PInterface())
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peer_1_info = self.nodes[0].getpeerinfo()[0]
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assert_equal(peer_1_info['permissions'], ['relay'])
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peer_2_info = self.nodes[0].getpeerinfo()[1]
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assert_equal(peer_2_info['permissions'], ['relay'])
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assert_equal(self.nodes[0].testmempoolaccept([tx_hex])[0]['allowed'], True)
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self.log.info('Check that the tx from first_peer with relay-permission is relayed to others (ie.second_peer)')
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with self.nodes[0].assert_debug_log(["received getdata"]):
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# Note that normally, first_peer would never send us transactions since we're a blocksonly node.
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# By activating blocksonly, we explicitly tell our peers that they should not send us transactions,
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# and Bitcoin Core respects that choice and will not send transactions.
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# But if, for some reason, first_peer decides to relay transactions to us anyway, we should relay them to
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# second_peer since we gave relay permission to first_peer.
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# See https://github.com/bitcoin/bitcoin/issues/19943 for details.
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first_peer.send_message(msg_tx(tx))
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self.log.info('Check that the peer with relay-permission is still connected after sending the transaction')
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assert_equal(first_peer.is_connected, True)
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second_peer.wait_for_tx(txid)
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assert_equal(self.nodes[0].getmempoolinfo()['size'], 1)
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self.log.info("Relay-permission peer's transaction is accepted and relayed")
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self.nodes[0].disconnect_p2ps()
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self.nodes[0].generate(1)
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def blocks_relay_conn_tests(self):
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self.log.info('Tests with node in normal mode with block-relay-only connections')
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self.restart_node(0, ["-noblocksonly"]) # disables blocks only mode
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assert_equal(self.nodes[0].getnetworkinfo()['localrelay'], True)
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# Ensure we disconnect if a block-relay-only connection sends us a transaction
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self.nodes[0].add_outbound_p2p_connection(P2PInterface(), p2p_idx=0, connection_type="block-relay-only")
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assert_equal(self.nodes[0].getpeerinfo()[0]['relaytxes'], False)
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_, txid, _, tx_hex = self.check_p2p_tx_violation(index=2)
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self.log.info("Check that txs from RPC are not sent to blockrelay connection")
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conn = self.nodes[0].add_outbound_p2p_connection(P2PTxInvStore(), p2p_idx=1, connection_type="block-relay-only")
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self.nodes[0].sendrawtransaction(tx_hex)
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# Bump time forward to ensure nNextInvSend timer pops
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self.nodes[0].setmocktime(int(time.time()) + 60)
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conn.sync_send_with_ping()
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assert(int(txid, 16) not in conn.get_invs())
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def check_p2p_tx_violation(self, index=1):
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self.log.info('Check that txs from P2P are rejected and result in disconnect')
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input_txid = self.nodes[0].getblock(self.nodes[0].getblockhash(index), 2)['tx'][0]['txid']
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utxo_to_spend = self.miniwallet.get_utxo(txid=input_txid)
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spendtx = self.miniwallet.create_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_to_spend)
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with self.nodes[0].assert_debug_log(['transaction sent in violation of protocol peer=0']):
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self.nodes[0].p2ps[0].send_message(msg_tx(spendtx['tx']))
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self.nodes[0].p2ps[0].wait_for_disconnect()
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assert_equal(self.nodes[0].getmempoolinfo()['size'], 0)
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# Remove the disconnected peer
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del self.nodes[0].p2ps[0]
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return spendtx['tx'], spendtx['txid'], spendtx['wtxid'], spendtx['hex']
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if __name__ == '__main__':
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P2PBlocksOnly().main()
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