You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
265 lines
12 KiB
265 lines
12 KiB
3 years ago
|
#!/usr/bin/env python3
|
||
|
|
# Copyright (c) 2014-2020 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 mining RPCs
|
||
|
|
|
||
|
|
- getmininginfo
|
||
|
|
- getblocktemplate proposal mode
|
||
|
|
- submitblock"""
|
||
|
|
|
||
|
|
import copy
|
||
|
|
from decimal import Decimal
|
||
|
|
|
||
|
|
from test_framework.blocktools import (
|
||
|
|
create_coinbase,
|
||
|
|
NORMAL_GBT_REQUEST_PARAMS,
|
||
|
|
TIME_GENESIS_BLOCK,
|
||
|
|
)
|
||
|
|
from test_framework.messages import (
|
||
|
|
CBlock,
|
||
|
|
CBlockHeader,
|
||
|
|
BLOCK_HEADER_SIZE,
|
||
|
|
)
|
||
|
|
from test_framework.p2p import P2PDataStore
|
||
|
|
from test_framework.test_framework import BitcoinTestFramework
|
||
|
|
from test_framework.util import (
|
||
|
|
assert_equal,
|
||
|
|
assert_raises_rpc_error,
|
||
|
|
)
|
||
|
|
|
||
|
|
VERSIONBITS_TOP_BITS = 0x20000000
|
||
|
|
VERSIONBITS_DEPLOYMENT_TESTDUMMY_BIT = 28
|
||
|
|
|
||
|
|
|
||
|
|
def assert_template(node, block, expect, rehash=True):
|
||
|
|
if rehash:
|
||
|
|
block.hashMerkleRoot = block.calc_merkle_root()
|
||
|
|
rsp = node.getblocktemplate(template_request={
|
||
|
|
'data': block.serialize().hex(),
|
||
|
|
'mode': 'proposal',
|
||
|
|
'rules': ['segwit'],
|
||
|
|
})
|
||
|
|
assert_equal(rsp, expect)
|
||
|
|
|
||
|
|
|
||
|
|
class MiningTest(BitcoinTestFramework):
|
||
|
|
def set_test_params(self):
|
||
|
|
self.num_nodes = 2
|
||
|
|
self.setup_clean_chain = True
|
||
|
|
self.supports_cli = False
|
||
|
|
|
||
|
|
def mine_chain(self):
|
||
|
|
self.log.info('Create some old blocks')
|
||
|
|
for t in range(TIME_GENESIS_BLOCK, TIME_GENESIS_BLOCK + 200 * 600, 600):
|
||
|
|
self.nodes[0].setmocktime(t)
|
||
|
|
self.nodes[0].generate(1)
|
||
|
|
mining_info = self.nodes[0].getmininginfo()
|
||
|
|
assert_equal(mining_info['blocks'], 200)
|
||
|
|
assert_equal(mining_info['currentblocktx'], 0)
|
||
|
|
assert_equal(mining_info['currentblockweight'], 4000)
|
||
|
|
|
||
|
|
self.log.info('test blockversion')
|
||
|
|
self.restart_node(0, extra_args=['-mocktime={}'.format(t), '-blockversion=1337'])
|
||
|
|
self.connect_nodes(0, 1)
|
||
|
|
assert_equal(1337, self.nodes[0].getblocktemplate(NORMAL_GBT_REQUEST_PARAMS)['version'])
|
||
|
|
self.restart_node(0, extra_args=['-mocktime={}'.format(t)])
|
||
|
|
self.connect_nodes(0, 1)
|
||
|
|
assert_equal(VERSIONBITS_TOP_BITS + (1 << VERSIONBITS_DEPLOYMENT_TESTDUMMY_BIT), self.nodes[0].getblocktemplate(NORMAL_GBT_REQUEST_PARAMS)['version'])
|
||
|
|
self.restart_node(0)
|
||
|
|
self.connect_nodes(0, 1)
|
||
|
|
|
||
|
|
def run_test(self):
|
||
|
|
self.mine_chain()
|
||
|
|
node = self.nodes[0]
|
||
|
|
|
||
|
|
def assert_submitblock(block, result_str_1, result_str_2=None):
|
||
|
|
block.solve()
|
||
|
|
result_str_2 = result_str_2 or 'duplicate-invalid'
|
||
|
|
assert_equal(result_str_1, node.submitblock(hexdata=block.serialize().hex()))
|
||
|
|
assert_equal(result_str_2, node.submitblock(hexdata=block.serialize().hex()))
|
||
|
|
|
||
|
|
self.log.info('getmininginfo')
|
||
|
|
mining_info = node.getmininginfo()
|
||
|
|
assert_equal(mining_info['blocks'], 200)
|
||
|
|
assert_equal(mining_info['chain'], self.chain)
|
||
|
|
assert 'currentblocktx' not in mining_info
|
||
|
|
assert 'currentblockweight' not in mining_info
|
||
|
|
assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
|
||
|
|
assert_equal(mining_info['networkhashps'], Decimal('0.003333333333333334'))
|
||
|
|
assert_equal(mining_info['pooledtx'], 0)
|
||
|
|
|
||
|
|
# Mine a block to leave initial block download
|
||
|
|
node.generatetoaddress(1, node.get_deterministic_priv_key().address)
|
||
|
|
tmpl = node.getblocktemplate(NORMAL_GBT_REQUEST_PARAMS)
|
||
|
|
self.log.info("getblocktemplate: Test capability advertised")
|
||
|
|
assert 'proposal' in tmpl['capabilities']
|
||
|
|
assert 'coinbasetxn' not in tmpl
|
||
|
|
|
||
|
|
next_height = int(tmpl["height"])
|
||
|
|
coinbase_tx = create_coinbase(height=next_height)
|
||
|
|
# sequence numbers must not be max for nLockTime to have effect
|
||
|
|
coinbase_tx.vin[0].nSequence = 2**32 - 2
|
||
|
|
coinbase_tx.rehash()
|
||
|
|
|
||
|
|
block = CBlock()
|
||
|
|
block.nVersion = tmpl["version"]
|
||
|
|
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
|
||
|
|
block.nTime = tmpl["curtime"]
|
||
|
|
block.nBits = int(tmpl["bits"], 16)
|
||
|
|
block.nNonce = 0
|
||
|
|
block.vtx = [coinbase_tx]
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: segwit rule must be set")
|
||
|
|
assert_raises_rpc_error(-8, "getblocktemplate must be called with the segwit rule set", node.getblocktemplate)
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test valid block")
|
||
|
|
assert_template(node, block, None)
|
||
|
|
|
||
|
|
self.log.info("submitblock: Test block decode failure")
|
||
|
|
assert_raises_rpc_error(-22, "Block decode failed", node.submitblock, block.serialize()[:-15].hex())
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test bad input hash for coinbase transaction")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.vtx[0].vin[0].prevout.hash += 1
|
||
|
|
bad_block.vtx[0].rehash()
|
||
|
|
assert_template(node, bad_block, 'bad-cb-missing')
|
||
|
|
|
||
|
|
self.log.info("submitblock: Test invalid coinbase transaction")
|
||
|
|
assert_raises_rpc_error(-22, "Block does not start with a coinbase", node.submitblock, bad_block.serialize().hex())
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test truncated final transaction")
|
||
|
|
assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {
|
||
|
|
'data': block.serialize()[:-1].hex(),
|
||
|
|
'mode': 'proposal',
|
||
|
|
'rules': ['segwit'],
|
||
|
|
})
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test duplicate transaction")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.vtx.append(bad_block.vtx[0])
|
||
|
|
assert_template(node, bad_block, 'bad-txns-duplicate')
|
||
|
|
assert_submitblock(bad_block, 'bad-txns-duplicate', 'bad-txns-duplicate')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test invalid transaction")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_tx = copy.deepcopy(bad_block.vtx[0])
|
||
|
|
bad_tx.vin[0].prevout.hash = 255
|
||
|
|
bad_tx.rehash()
|
||
|
|
bad_block.vtx.append(bad_tx)
|
||
|
|
assert_template(node, bad_block, 'bad-txns-inputs-missingorspent')
|
||
|
|
assert_submitblock(bad_block, 'bad-txns-inputs-missingorspent')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test nonfinal transaction")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.vtx[0].nLockTime = 2**32 - 1
|
||
|
|
bad_block.vtx[0].rehash()
|
||
|
|
assert_template(node, bad_block, 'bad-txns-nonfinal')
|
||
|
|
assert_submitblock(bad_block, 'bad-txns-nonfinal')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test bad tx count")
|
||
|
|
# The tx count is immediately after the block header
|
||
|
|
bad_block_sn = bytearray(block.serialize())
|
||
|
|
assert_equal(bad_block_sn[BLOCK_HEADER_SIZE], 1)
|
||
|
|
bad_block_sn[BLOCK_HEADER_SIZE] += 1
|
||
|
|
assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {
|
||
|
|
'data': bad_block_sn.hex(),
|
||
|
|
'mode': 'proposal',
|
||
|
|
'rules': ['segwit'],
|
||
|
|
})
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test bad bits")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.nBits = 469762303 # impossible in the real world
|
||
|
|
assert_template(node, bad_block, 'bad-diffbits')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test bad merkle root")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.hashMerkleRoot += 1
|
||
|
|
assert_template(node, bad_block, 'bad-txnmrklroot', False)
|
||
|
|
assert_submitblock(bad_block, 'bad-txnmrklroot', 'bad-txnmrklroot')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test bad timestamps")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.nTime = 2**31 - 1
|
||
|
|
assert_template(node, bad_block, 'time-too-new')
|
||
|
|
assert_submitblock(bad_block, 'time-too-new', 'time-too-new')
|
||
|
|
bad_block.nTime = 0
|
||
|
|
assert_template(node, bad_block, 'time-too-old')
|
||
|
|
assert_submitblock(bad_block, 'time-too-old', 'time-too-old')
|
||
|
|
|
||
|
|
self.log.info("getblocktemplate: Test not best block")
|
||
|
|
bad_block = copy.deepcopy(block)
|
||
|
|
bad_block.hashPrevBlock = 123
|
||
|
|
assert_template(node, bad_block, 'inconclusive-not-best-prevblk')
|
||
|
|
assert_submitblock(bad_block, 'prev-blk-not-found', 'prev-blk-not-found')
|
||
|
|
|
||
|
|
self.log.info('submitheader tests')
|
||
|
|
assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='xx' * BLOCK_HEADER_SIZE))
|
||
|
|
assert_raises_rpc_error(-22, 'Block header decode failed', lambda: node.submitheader(hexdata='ff' * (BLOCK_HEADER_SIZE-2)))
|
||
|
|
assert_raises_rpc_error(-25, 'Must submit previous header', lambda: node.submitheader(hexdata=super(CBlock, bad_block).serialize().hex()))
|
||
|
|
|
||
|
|
block.nTime += 1
|
||
|
|
block.solve()
|
||
|
|
|
||
|
|
def chain_tip(b_hash, *, status='headers-only', branchlen=1):
|
||
|
|
return {'hash': b_hash, 'height': 202, 'branchlen': branchlen, 'status': status}
|
||
|
|
|
||
|
|
assert chain_tip(block.hash) not in node.getchaintips()
|
||
|
|
node.submitheader(hexdata=block.serialize().hex())
|
||
|
|
assert chain_tip(block.hash) in node.getchaintips()
|
||
|
|
node.submitheader(hexdata=CBlockHeader(block).serialize().hex()) # Noop
|
||
|
|
assert chain_tip(block.hash) in node.getchaintips()
|
||
|
|
|
||
|
|
bad_block_root = copy.deepcopy(block)
|
||
|
|
bad_block_root.hashMerkleRoot += 2
|
||
|
|
bad_block_root.solve()
|
||
|
|
assert chain_tip(bad_block_root.hash) not in node.getchaintips()
|
||
|
|
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
|
||
|
|
assert chain_tip(bad_block_root.hash) in node.getchaintips()
|
||
|
|
# Should still reject invalid blocks, even if we have the header:
|
||
|
|
assert_equal(node.submitblock(hexdata=bad_block_root.serialize().hex()), 'bad-txnmrklroot')
|
||
|
|
assert_equal(node.submitblock(hexdata=bad_block_root.serialize().hex()), 'bad-txnmrklroot')
|
||
|
|
assert chain_tip(bad_block_root.hash) in node.getchaintips()
|
||
|
|
# We know the header for this invalid block, so should just return early without error:
|
||
|
|
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
|
||
|
|
assert chain_tip(bad_block_root.hash) in node.getchaintips()
|
||
|
|
|
||
|
|
bad_block_lock = copy.deepcopy(block)
|
||
|
|
bad_block_lock.vtx[0].nLockTime = 2**32 - 1
|
||
|
|
bad_block_lock.vtx[0].rehash()
|
||
|
|
bad_block_lock.hashMerkleRoot = bad_block_lock.calc_merkle_root()
|
||
|
|
bad_block_lock.solve()
|
||
|
|
assert_equal(node.submitblock(hexdata=bad_block_lock.serialize().hex()), 'bad-txns-nonfinal')
|
||
|
|
assert_equal(node.submitblock(hexdata=bad_block_lock.serialize().hex()), 'duplicate-invalid')
|
||
|
|
# Build a "good" block on top of the submitted bad block
|
||
|
|
bad_block2 = copy.deepcopy(block)
|
||
|
|
bad_block2.hashPrevBlock = bad_block_lock.sha256
|
||
|
|
bad_block2.solve()
|
||
|
|
assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
|
||
|
|
|
||
|
|
# Should reject invalid header right away
|
||
|
|
bad_block_time = copy.deepcopy(block)
|
||
|
|
bad_block_time.nTime = 1
|
||
|
|
bad_block_time.solve()
|
||
|
|
assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
|
||
|
|
|
||
|
|
# Should ask for the block from a p2p node, if they announce the header as well:
|
||
|
|
peer = node.add_p2p_connection(P2PDataStore())
|
||
|
|
peer.wait_for_getheaders(timeout=5) # Drop the first getheaders
|
||
|
|
peer.send_blocks_and_test(blocks=[block], node=node)
|
||
|
|
# Must be active now:
|
||
|
|
assert chain_tip(block.hash, status='active', branchlen=0) in node.getchaintips()
|
||
|
|
|
||
|
|
# Building a few blocks should give the same results
|
||
|
|
node.generatetoaddress(10, node.get_deterministic_priv_key().address)
|
||
|
|
assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=CBlockHeader(bad_block_time).serialize().hex()))
|
||
|
|
assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=CBlockHeader(bad_block2).serialize().hex()))
|
||
|
|
node.submitheader(hexdata=CBlockHeader(block).serialize().hex())
|
||
|
|
node.submitheader(hexdata=CBlockHeader(bad_block_root).serialize().hex())
|
||
|
|
assert_equal(node.submitblock(hexdata=block.serialize().hex()), 'duplicate') # valid
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
MiningTest().main()
|