dad8c67d38
64c0800 Use logging in individual tests (John Newbery) 38ad281 Use logging in test_framework/comptool.py (John Newbery) ff19073 Use logging in test_framework/blockstore.py (John Newbery) 2a9c7c7 Use logging in test_framework/util.py (John Newbery) b0dec4a Remove manual debug settings in qa tests. (John Newbery) af1363c Always enable debug log and microsecond logging for test nodes. (John Newbery) 6d0e325 Use logging in mininode.py (John Newbery) 553a976 Add logging to p2p-segwit.py (John Newbery) 0e6d23d Add logging to test_framework.py (John Newbery) Tree-SHA512: 42ee2acbf444ec32d796f930f9f6e272da03c75e93d974a126d4ea9b2dbaa77cc57ab5e63ce3fd33d609049d884eb8d9f65272c08922d10f8db69d4a60ad05a3
191 lines
7.6 KiB
Python
Executable File
191 lines
7.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2016 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 logic for skipping signature validation on old blocks.
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Test logic for skipping signature validation on blocks which we've assumed
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valid (https://github.com/bitcoin/bitcoin/pull/9484)
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We build a chain that includes and invalid signature for one of the
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transactions:
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0: genesis block
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1: block 1 with coinbase transaction output.
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2-101: bury that block with 100 blocks so the coinbase transaction
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output can be spent
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102: a block containing a transaction spending the coinbase
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transaction output. The transaction has an invalid signature.
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103-2202: bury the bad block with just over two weeks' worth of blocks
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(2100 blocks)
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Start three nodes:
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- node0 has no -assumevalid parameter. Try to sync to block 2202. It will
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reject block 102 and only sync as far as block 101
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- node1 has -assumevalid set to the hash of block 102. Try to sync to
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block 2202. node1 will sync all the way to block 2202.
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- node2 has -assumevalid set to the hash of block 102. Try to sync to
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block 200. node2 will reject block 102 since it's assumed valid, but it
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isn't buried by at least two weeks' work.
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"""
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from test_framework.mininode import *
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from test_framework.blocktools import create_block, create_coinbase
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from test_framework.key import CECKey
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from test_framework.script import *
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class BaseNode(SingleNodeConnCB):
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def __init__(self):
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SingleNodeConnCB.__init__(self)
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self.last_inv = None
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self.last_headers = None
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self.last_block = None
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self.last_getdata = None
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self.block_announced = False
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self.last_getheaders = None
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self.disconnected = False
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self.last_blockhash_announced = None
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def on_close(self, conn):
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self.disconnected = True
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def wait_for_disconnect(self, timeout=60):
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test_function = lambda: self.disconnected
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assert(wait_until(test_function, timeout=timeout))
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return
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def send_header_for_blocks(self, new_blocks):
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headers_message = msg_headers()
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headers_message.headers = [ CBlockHeader(b) for b in new_blocks ]
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self.send_message(headers_message)
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class SendHeadersTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.setup_clean_chain = True
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self.num_nodes = 3
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def setup_network(self):
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# Start node0. We don't start the other nodes yet since
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# we need to pre-mine a block with an invalid transaction
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# signature so we can pass in the block hash as assumevalid.
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self.nodes = []
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self.nodes.append(start_node(0, self.options.tmpdir))
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def run_test(self):
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# Connect to node0
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node0 = BaseNode()
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connections = []
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connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
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node0.add_connection(connections[0])
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NetworkThread().start() # Start up network handling in another thread
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node0.wait_for_verack()
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# Build the blockchain
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self.tip = int(self.nodes[0].getbestblockhash(), 16)
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self.block_time = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['time'] + 1
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self.blocks = []
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# Get a pubkey for the coinbase TXO
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coinbase_key = CECKey()
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coinbase_key.set_secretbytes(b"horsebattery")
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coinbase_pubkey = coinbase_key.get_pubkey()
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# Create the first block with a coinbase output to our key
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height = 1
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block = create_block(self.tip, create_coinbase(height, coinbase_pubkey), self.block_time)
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self.blocks.append(block)
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self.block_time += 1
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block.solve()
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# Save the coinbase for later
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self.block1 = block
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self.tip = block.sha256
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height += 1
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# Bury the block 100 deep so the coinbase output is spendable
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for i in range(100):
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block = create_block(self.tip, create_coinbase(height), self.block_time)
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block.solve()
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self.blocks.append(block)
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self.tip = block.sha256
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self.block_time += 1
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height += 1
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# Create a transaction spending the coinbase output with an invalid (null) signature
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tx = CTransaction()
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tx.vin.append(CTxIn(COutPoint(self.block1.vtx[0].sha256, 0), scriptSig=b""))
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tx.vout.append(CTxOut(49*100000000, CScript([OP_TRUE])))
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tx.calc_sha256()
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block102 = create_block(self.tip, create_coinbase(height), self.block_time)
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self.block_time += 1
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block102.vtx.extend([tx])
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block102.hashMerkleRoot = block102.calc_merkle_root()
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block102.rehash()
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block102.solve()
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self.blocks.append(block102)
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self.tip = block102.sha256
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self.block_time += 1
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height += 1
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# Bury the assumed valid block 2100 deep
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for i in range(2100):
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block = create_block(self.tip, create_coinbase(height), self.block_time)
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block.nVersion = 4
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block.solve()
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self.blocks.append(block)
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self.tip = block.sha256
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self.block_time += 1
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height += 1
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# Start node1 and node2 with assumevalid so they accept a block with a bad signature.
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self.nodes.append(start_node(1, self.options.tmpdir,
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["-assumevalid=" + hex(block102.sha256)]))
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node1 = BaseNode() # connects to node1
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connections.append(NodeConn('127.0.0.1', p2p_port(1), self.nodes[1], node1))
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node1.add_connection(connections[1])
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node1.wait_for_verack()
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self.nodes.append(start_node(2, self.options.tmpdir,
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["-assumevalid=" + hex(block102.sha256)]))
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node2 = BaseNode() # connects to node2
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connections.append(NodeConn('127.0.0.1', p2p_port(2), self.nodes[2], node2))
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node2.add_connection(connections[2])
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node2.wait_for_verack()
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# send header lists to all three nodes
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node0.send_header_for_blocks(self.blocks[0:2000])
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node0.send_header_for_blocks(self.blocks[2000:])
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node1.send_header_for_blocks(self.blocks[0:2000])
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node1.send_header_for_blocks(self.blocks[2000:])
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node2.send_header_for_blocks(self.blocks[0:200])
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# Send 102 blocks to node0. Block 102 will be rejected.
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for i in range(101):
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node0.send_message(msg_block(self.blocks[i]))
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node0.sync_with_ping() # make sure the most recent block is synced
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node0.send_message(msg_block(self.blocks[101]))
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assert_equal(self.nodes[0].getblock(self.nodes[0].getbestblockhash())['height'], 101)
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# Send 3102 blocks to node1. All blocks will be accepted.
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for i in range(2202):
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node1.send_message(msg_block(self.blocks[i]))
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node1.sync_with_ping() # make sure the most recent block is synced
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assert_equal(self.nodes[1].getblock(self.nodes[1].getbestblockhash())['height'], 2202)
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# Send 102 blocks to node2. Block 102 will be rejected.
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for i in range(101):
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node2.send_message(msg_block(self.blocks[i]))
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node2.sync_with_ping() # make sure the most recent block is synced
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node2.send_message(msg_block(self.blocks[101]))
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assert_equal(self.nodes[2].getblock(self.nodes[2].getbestblockhash())['height'], 101)
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if __name__ == '__main__':
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SendHeadersTest().main()
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