mirror of
https://github.com/dashpay/dash.git
synced 2024-12-26 04:22:55 +01:00
1ee01c801e
754e802274e9373ad7e1dccb710acf74ded6e7fb test: check rejected future block later accepted (Luke Dashjr) Pull request description: (Luke) was unsure if the code sufficiently avoided caching a time-too-new rejection, so wrote this test to check it. It looks like despite only exempting BLOCK_MUTATED, it is still okay because header failures never cache block invalidity. This test will help ensure that if this ever changes, BLOCK_TIME_FUTURE gets excluded at the same time. This PR re-opens https://github.com/bitcoin/bitcoin/pull/17872 which went stale and addresses the nits raised by reviewers there. ACKs for top commit: MarcoFalke: review ACK 754e802274e9373ad7e1dccb710acf74ded6e7fb Tree-SHA512: a2bbc8fffb523cf2831e1ecb05f20868e30106a38cc2e369e4973fa549cca06675a668df16f76c49cc4ce3a22925404255e5c53c4232d63ba1b9fca878509aa0
157 lines
6.3 KiB
Python
Executable File
157 lines
6.3 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2015-2020 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 node responses to invalid blocks.
|
|
|
|
In this test we connect to one node over p2p, and test block requests:
|
|
1) Valid blocks should be requested and become chain tip.
|
|
2) Invalid block with duplicated transaction should be re-requested.
|
|
3) Invalid block with bad coinbase value should be rejected and not
|
|
re-requested.
|
|
4) Invalid block due to future timestamp is later accepted when that timestamp
|
|
becomes valid.
|
|
"""
|
|
import copy
|
|
import time
|
|
|
|
from test_framework.blocktools import create_block, create_coinbase, create_tx_with_script
|
|
from test_framework.messages import COIN
|
|
from test_framework.p2p import P2PDataStore
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal
|
|
|
|
MAX_FUTURE_BLOCK_TIME = 2 * 60 * 60
|
|
|
|
|
|
class InvalidBlockRequestTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
self.setup_clean_chain = True
|
|
self.extra_args = [["-whitelist=noban@127.0.0.1"]]
|
|
|
|
def run_test(self):
|
|
# Add p2p connection to node0
|
|
node = self.nodes[0] # convenience reference to the node
|
|
peer = node.add_p2p_connection(P2PDataStore())
|
|
|
|
best_block = node.getblock(node.getbestblockhash())
|
|
tip = int(node.getbestblockhash(), 16)
|
|
height = best_block["height"] + 1
|
|
block_time = best_block["time"] + 1
|
|
|
|
self.log.info("Create a new block with an anyone-can-spend coinbase")
|
|
|
|
height = 1
|
|
block = create_block(tip, create_coinbase(height), block_time)
|
|
block.solve()
|
|
# Save the coinbase for later
|
|
block1 = block
|
|
tip = block.sha256
|
|
peer.send_blocks_and_test([block1], node, success=True)
|
|
|
|
self.log.info("Mature the block.")
|
|
node.generatetoaddress(100, node.get_deterministic_priv_key().address)
|
|
|
|
best_block = node.getblock(node.getbestblockhash())
|
|
tip = int(node.getbestblockhash(), 16)
|
|
height = best_block["height"] + 1
|
|
block_time = best_block["time"] + 1
|
|
|
|
# Use merkle-root malleability to generate an invalid block with
|
|
# same blockheader (CVE-2012-2459).
|
|
# Manufacture a block with 3 transactions (coinbase, spend of prior
|
|
# coinbase, spend of that spend). Duplicate the 3rd transaction to
|
|
# leave merkle root and blockheader unchanged but invalidate the block.
|
|
# For more information on merkle-root malleability see src/consensus/merkle.cpp.
|
|
self.log.info("Test merkle root malleability.")
|
|
|
|
block2 = create_block(tip, create_coinbase(height), block_time)
|
|
block_time += 1
|
|
|
|
# b'0x51' is OP_TRUE
|
|
tx1 = create_tx_with_script(block1.vtx[0], 0, script_sig=b'\x51', amount=50 * COIN)
|
|
tx2 = create_tx_with_script(tx1, 0, script_sig=b'\x51', amount=50 * COIN)
|
|
|
|
block2.vtx.extend([tx1, tx2])
|
|
block2.hashMerkleRoot = block2.calc_merkle_root()
|
|
block2.rehash()
|
|
block2.solve()
|
|
orig_hash = block2.sha256
|
|
block2_orig = copy.deepcopy(block2)
|
|
|
|
# Mutate block 2
|
|
block2.vtx.append(tx2)
|
|
assert_equal(block2.hashMerkleRoot, block2.calc_merkle_root())
|
|
assert_equal(orig_hash, block2.rehash())
|
|
assert block2_orig.vtx != block2.vtx
|
|
|
|
peer.send_blocks_and_test([block2], node, success=False, reject_reason='bad-txns-duplicate')
|
|
|
|
# Check transactions for duplicate inputs (CVE-2018-17144)
|
|
self.log.info("Test duplicate input block.")
|
|
|
|
block2_dup = copy.deepcopy(block2_orig)
|
|
block2_dup.vtx[2].vin.append(block2_dup.vtx[2].vin[0])
|
|
block2_dup.vtx[2].rehash()
|
|
block2_dup.hashMerkleRoot = block2_dup.calc_merkle_root()
|
|
block2_dup.rehash()
|
|
block2_dup.solve()
|
|
peer.send_blocks_and_test([block2_dup], node, success=False, reject_reason='bad-txns-inputs-duplicate')
|
|
|
|
self.log.info("Test very broken block.")
|
|
|
|
block3 = create_block(tip, create_coinbase(height), block_time)
|
|
block_time += 1
|
|
block3.vtx[0].vout[0].nValue = 1000 * COIN # Too high!
|
|
block3.vtx[0].sha256 = None
|
|
block3.vtx[0].calc_sha256()
|
|
block3.hashMerkleRoot = block3.calc_merkle_root()
|
|
block3.rehash()
|
|
block3.solve()
|
|
|
|
peer.send_blocks_and_test([block3], node, success=False, reject_reason='bad-cb-amount')
|
|
|
|
|
|
# Complete testing of CVE-2012-2459 by sending the original block.
|
|
# It should be accepted even though it has the same hash as the mutated one.
|
|
|
|
self.log.info("Test accepting original block after rejecting its mutated version.")
|
|
peer.send_blocks_and_test([block2_orig], node, success=True, timeout=5)
|
|
|
|
# Update tip info
|
|
height += 1
|
|
block_time += 1
|
|
tip = int(block2_orig.hash, 16)
|
|
|
|
# Complete testing of CVE-2018-17144, by checking for the inflation bug.
|
|
# Create a block that spends the output of a tx in a previous block.
|
|
block4 = create_block(tip, create_coinbase(height), block_time)
|
|
tx3 = create_tx_with_script(tx2, 0, script_sig=b'\x51', amount=50 * COIN)
|
|
|
|
# Duplicates input
|
|
tx3.vin.append(tx3.vin[0])
|
|
tx3.rehash()
|
|
block4.vtx.append(tx3)
|
|
block4.hashMerkleRoot = block4.calc_merkle_root()
|
|
block4.rehash()
|
|
block4.solve()
|
|
self.log.info("Test inflation by duplicating input")
|
|
peer.send_blocks_and_test([block4], node, success=False, reject_reason='bad-txns-inputs-duplicate')
|
|
|
|
self.log.info("Test accepting identical block after rejecting it due to a future timestamp.")
|
|
t = int(time.time())
|
|
node.setmocktime(t)
|
|
# Set block time +1 second past max future validity
|
|
block = create_block(tip, create_coinbase(height), t + MAX_FUTURE_BLOCK_TIME + 1)
|
|
block.hashMerkleRoot = block.calc_merkle_root()
|
|
block.solve()
|
|
# Need force_send because the block will get rejected without a getdata otherwise
|
|
peer.send_blocks_and_test([block], node, force_send=True, success=False, reject_reason='time-too-new')
|
|
node.setmocktime(t + 1)
|
|
peer.send_blocks_and_test([block], node, success=True)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
InvalidBlockRequestTest().main()
|