def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
self.connection = None
self.ping_counter = 1
self.last_pong = msg_pong()
self.block_receive_map = {}
def _init(self):
node_no = 0
# Create a P2P connections
node = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[node_no], node)
node.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[node_no].getbestblockhash(), 16))
block = self.chain.next_block(self.block_count)
self.block_count += 1
self.chain.save_spendable_output()
node.send_message(msg_block(block))
for i in range(100):
block = self.chain.next_block(self.block_count)
self.block_count += 1
self.chain.save_spendable_output()
node.send_message(msg_block(block))
self.log.info("Waiting for block height 101 via rpc")
self.nodes[node_no].waitforblockheight(101)
return node
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
self.connection = None
self.ping_counter = 1
self.last_pong = msg_pong()
self.conn_closed = False
def __init__(self, testRig, node):
self.peer = NodeConnCB()
self.peer.add_connection(
NodeConn('127.0.0.1', p2p_port(0), node, self.peer))
NetworkThread().start()
self.peer.wait_for_verack()
testRig.dsdetector = self
self.message = None
def restart_node(self, extra_args=None):
self.log.info("Restarting node ...")
self.rpc.stop_node()
self.rpc.wait_until_stopped()
self.rpc.start(True, extra_args)
self.rpc.wait_for_rpc_connection()
self.p2p = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.rpc, self.p2p)
NetworkThread().start()
self.p2p.add_connection(connection)
self.p2p.wait_for_verack()
self._register_on_reject()
def run_test(self):
#connect a mininode
aTestNode = NodeConnCB()
node = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], aTestNode)
aTestNode.add_connection(node)
NetworkThread().start()
aTestNode.wait_for_verack()
#request mempool
aTestNode.send_message(MsgMempool())
aTestNode.wait_for_disconnect()
#mininode must be disconnected at this point
assert_equal(len(self.nodes[0].getpeerinfo()), 0)
def init_(self, nodes_count):
nodes = []
for no in range(0, nodes_count):
# Create a P2P connections
node = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(no), self.nodes[no], node)
node.add_connection(connection)
nodes.append(node)
NetworkThread().start()
for no in range(0, nodes_count):
# wait_for_verack ensures that the P2P connection is fully up.
nodes[no].wait_for_verack()
self.init_chain_(nodes[0], nodes_count)
return nodes
def start_node_with_protoconf(self, maxprotocolrecvpayloadlength, recvinvqueuefactor=0):
"""
This method starts the node and creates a connection to the node.
It takes care of exchanging protoconf messages between node and python connection.
Max size of bitcoin nodes' inv message is determined by maxprotocolrecvpayloadlength.
Max size of python connections' inv message is LEGACY_MAX_PROTOCOL_PAYLOAD_LENGTH.
If called with parameter recvinvqueuefactor it also sets this setting on the node.
:returns test_node
"""
# Start the node with maxprotocolrecvpayloadlength, recvinvqueuefactor (if set)
start_params = []
if maxprotocolrecvpayloadlength:
start_params.append("-maxprotocolrecvpayloadlength={} ".format(maxprotocolrecvpayloadlength))
if recvinvqueuefactor:
start_params.append("-recvinvqueuefactor={} ".format(recvinvqueuefactor))
self.start_node(0, start_params)
# Create a connection and connect to the node
test_node = NodeConnCB()
test_node.wanted_inv_lengths = []
def on_getdata(conn, message):
test_node.wanted_inv_lengths.append(len(message.inv))
test_node.on_getdata = on_getdata
# Send protoconf message from python node to bitcoind node
def send_protoconf_default_msg_length(conn):
conn.send_message(msg_protoconf(CProtoconf(1, LEGACY_MAX_PROTOCOL_PAYLOAD_LENGTH)))
test_node.send_protoconf = send_protoconf_default_msg_length
connections = [NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node)]
test_node.add_connection(connections[0])
NetworkThread().start() # Start up network handling in another thread
# Prepare initial block. Needed so that GETDATA can be send back.
self.nodes[0].generate(1)
# Receive bitcoind's protoconf and save max_recv_payload_length.
test_node.wait_for_protoconf()
test_node.max_recv_payload_length = test_node.last_message["protoconf"].protoconf.max_recv_payload_length
return test_node
def run_test(self):
# Create a P2P connection to the first node
node0 = NodeConnCB()
connections = []
connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
node0.add_connection(connections[0])
# Start up network handling in another thread. This needs to be called
# after the P2P connections have been created.
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
# Out of IBD
self.nodes[0].generate(1)
# Create shortcuts.
conn = connections[0]
rpc = conn.rpc
# Use p2p interface.
self.test_case(rpcsend=None, conn=conn)
# Use sendrawtransaction rpc interface.
self.test_case(rpc.sendrawtransaction)
# Use sendrawtransactions rpc interface.
self.test_case(rpc.sendrawtransactions)
def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
# send one to get out of IBD state
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
node0.send_message(msg_block(block))
self.nodes[0].waitforblockheight(1)
block_count = self.__test_getdata(node0, block_count)
block_count = self.__test_getblocks(node0, block_count)
def run_test(self):
# Create all the connections we will need to node0 at the start because they all need to be
# setup before we call NetworkThread().start()
# Create a P2P connection just so that the test framework is happy we're connected
dummyCB = NodeConnCB()
dummyConn = NodeConn('127.0.0.1',
p2p_port(0),
self.nodes[0],
dummyCB,
nullAssocID=True)
dummyCB.add_connection(dummyConn)
# By setting the assocID on this second NodeConn we prevent it sending a version message
badConnCB = TestNode()
badConn = NodeConn('127.0.0.1',
p2p_port(0),
self.nodes[0],
badConnCB,
assocID=0x01)
badConnCB.add_connection(badConn)
# Start up network handling in another thread. This needs to be called
# after the P2P connections have been created.
NetworkThread().start()
# Check initial state
dummyCB.wait_for_protoconf()
with mininode_lock:
assert_equal(len(badConnCB.message_count), 0)
# Send a badly formatted version message
badConn.send_message(msg_version_bad())
# Connection will be closed with a reject
wait_until(lambda: badConnCB.last_reject is not None,
lock=mininode_lock,
timeout=5)
wait_until(lambda: badConn.state == "closed",
lock=mininode_lock,
timeout=5)
# Check clear log message was generated
assert check_for_log_msg(
self, "Failed to process version: (Badly formatted association ID",
"/node0")
def run_test(self):
node0 = NodeConnCB()
node0.add_connection(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
NetworkThread().start()
node0.wait_for_verack()
self.log.info("#1. generate 1 block by node0==================================================================")
self.nodes[0].generate(nblocks=1)
self.tip = int(self.nodes[0].getbestblockhash(), 16)
self.block_time = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['time'] + 1
self.height = 1
self.coinbase_txs = []
self.log.info("#2. create 100 blocks and send to node0========================================================")
for i in range(100):
coinbase_tx = create_coinbase(self.height)
self.coinbase_txs.append(coinbase_tx)
self.create_block_and_send([coinbase_tx], node0)
self.nodes[0].waitforblockheight(101)
self.fork_point_hash = self.tip
self.fork_height = self.height
self.log.info("#3. create one fork chain with one block=======================================================")
for i in range(1):
block_fee, txns = self.create_txns_from(self.coinbase_txs[i], 2)
coinbase = create_coinbase(self.height, None, block_fee)
self.create_block_and_send([coinbase] + txns, node0)
self.nodes[0].waitforblockheight(102)
self.log.info("#4. create another fork chain with two blocks==================================================")
self.tip = self.fork_point_hash
self.height = self.fork_height
for i in range(2):
block_fee, txns = self.create_txns_from(self.coinbase_txs[i], 2)
coinbase = create_coinbase(self.height, None, block_fee)
self.create_block_and_send([coinbase] + txns, node0)
self.log.info("#5. expect node0 switch to new chain===========================================================")
self.nodes[0].waitforblockheight(103)
def run_test(self):
node0 = NodeConnCB()
connections = [
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
]
node0.add_connection(connections[0])
NetworkThread().start() # Start up network handling in another thread
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.log.info("Mining %d blocks", DERSIG_HEIGHT - 2)
self.coinbase_blocks = self.nodes[0].generate(DERSIG_HEIGHT - 2)
self.nodeaddress = self.nodes[0].getnewaddress()
self.log.info(
"Test that a transaction with non-DER signature can still appear in a block"
)
spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[0],
self.nodeaddress, 1.0)
un_der_ify(spendtx)
spendtx.rehash()
tip = self.nodes[0].getbestblockhash()
block_time = self.nodes[0].getblockheader(tip)['mediantime'] + 1
block = create_block(int(tip, 16), create_coinbase(DERSIG_HEIGHT - 1),
block_time)
block.nVersion = 2
block.vtx.append(spendtx)
block.hashMerkleRoot = block.calc_merkle_root()
block.rehash()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(self.nodes[0].getbestblockhash(), block.hash)
self.log.info("Test that blocks must now be at least version 3")
tip = block.sha256
block_time += 1
block = create_block(tip, create_coinbase(DERSIG_HEIGHT), block_time)
block.nVersion = 2
block.rehash()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
wait_until(lambda: "reject" in node0.last_message.keys(),
lock=mininode_lock,
err_msg="last_message")
with mininode_lock:
assert_equal(node0.last_message["reject"].code, REJECT_OBSOLETE)
assert_equal(node0.last_message["reject"].reason,
b'bad-version(0x00000002)')
assert_equal(node0.last_message["reject"].data, block.sha256)
del node0.last_message["reject"]
self.log.info(
"Test that transactions with non-DER signatures cannot appear in a block"
)
block.nVersion = 3
spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[1],
self.nodeaddress, 1.0)
un_der_ify(spendtx)
spendtx.rehash()
# First we show that this tx is valid except for DERSIG by getting it
# accepted to the mempool (which we can achieve with
# -promiscuousmempoolflags).
node0.send_and_ping(MsgTx(spendtx))
assert spendtx.hash in self.nodes[0].getrawmempool()
# Now we verify that a block with this transaction is invalid.
block.vtx.append(spendtx)
block.hashMerkleRoot = block.calc_merkle_root()
block.rehash()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
wait_until(lambda: "reject" in node0.last_message.keys(),
lock=mininode_lock,
err_msg="last_message")
with mininode_lock:
# We can receive different reject messages depending on whether
# Krond is running with multiple script check threads. If script
# check threads are not in use, then transaction script validation
# happens sequentially, and Krond produces more specific reject
# reasons.
assert node0.last_message["reject"].code in [
REJECT_INVALID, REJECT_NONSTANDARD
]
assert_equal(node0.last_message["reject"].data, block.sha256)
if node0.last_message["reject"].code == REJECT_INVALID:
# Generic rejection when a block is invalid
assert_equal(node0.last_message["reject"].reason,
b'block-validation-failed')
else:
assert b'Non-canonical DER signature' in node0.last_message[
"reject"].reason
self.log.info(
"Test that a version 3 block with a DERSIG-compliant transaction is accepted"
)
block.vtx[1] = create_transaction(self.nodes[0],
self.coinbase_blocks[1],
self.nodeaddress, 1.0)
block.hashMerkleRoot = block.calc_merkle_root()
block.rehash()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, out, block_count = prepare_init_chain(self.chain,
101,
100,
start_block=0,
block_0=False,
node=node0)
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
# wait till validation of block or blocks finishes
node0.sync_with_ping()
block1 = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block_count += 1
# send block but block him at validation point
self.nodes[0].waitaftervalidatingblock(block1.hash, "add")
node0.send_message(msg_block(block1))
self.log.info(f"block1 hash: {block1.hash}")
# make sure block hash is in waiting list
wait_for_waiting_blocks({block1.hash}, self.nodes[0], self.log)
# send child block
block2 = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
block_count += 1
node0.send_message(msg_block(block2))
self.log.info(f"block2 hash: {block2.hash}")
wait_until(lambda: check_for_log_msg(
self, block2.hash + " will not be considered by the current",
"/node0"))
self.nodes[0].waitaftervalidatingblock(block1.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# block that arrived last on competing chain should be active
assert_equal(block2.hash, self.nodes[0].getbestblockhash())
def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
for i in range(100):
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count-1
block2_hard = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count, spend=out[0], extra_txns=2)
easier_block_num = block_count
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count, spend=out[0], extra_txns=10)
block_count += 1
# make child block of easier block
self.chain.set_tip(easier_block_num)
block5 = self.chain.next_block(block_count)
block5_num = block_count
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash}, self.nodes[0], self.log)
# send blocks via different p2p connection
node0.send_message(msg_block(block2_hard))
node1.send_message(msg_block(block4_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash}, self.nodes[0], self.log)
# send easier block through different p2p connection too
node2.send_message(msg_block(block3_easier))
self.log.info(f"easier block hash: {block3_easier.hash}")
self.nodes[0].waitforblockheight(102)
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
# child block of block3_easier
self.log.info(f"child block hash: {block5.hash}")
self.nodes[0].waitaftervalidatingblock(block5.hash, "add")
# make sure child block is in waiting list and then send it
wait_for_not_validating_blocks({block5.hash}, self.nodes[0], self.log)
node2.send_message(msg_block(block5))
# make sure we started validating child block
wait_for_validating_blocks({block5.hash}, self.nodes[0], self.log)
# finish validation on block2_hard
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "remove")
wait_for_not_validating_blocks({block2_hard.hash}, self.nodes[0], self.log)
# finish validation on child block
self.nodes[0].waitaftervalidatingblock(block5.hash, "remove")
wait_for_not_validating_blocks({block5.hash}, self.nodes[0], self.log)
# block5 should be active at this point
assert_equal(block5.hash, self.nodes[0].getbestblockhash())
# finish validation on block4_hard
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "remove")
wait_for_not_validating_blocks({block4_hard.hash}, self.nodes[0], self.log)
# block5 should still be active at this point
assert_equal(block5.hash, self.nodes[0].getbestblockhash())
# Make three siblings and send them via same p2p connection.
block6_hard = self.chain.next_block(block_count, spend=out[1], extra_txns=8)
block_count += 1
self.chain.set_tip(block5_num)
block7_easier = self.chain.next_block(block_count, spend=out[1], extra_txns=2)
block_count += 1
self.chain.set_tip(block5_num)
block8_hard = self.chain.next_block(block_count, spend=out[1], extra_txns=10)
block_count += 1
self.log.info(f"hard block6 hash: {block6_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block6_hard.hash, "add")
self.log.info(f"hard block8 hash: {block8_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block8_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block6_hard.hash, block8_hard.hash}, self.nodes[0], self.log)
# sending blocks via same p2p connection
node0.send_message(msg_block(block6_hard))
node0.send_message(msg_block(block8_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block6_hard.hash, block8_hard.hash}, self.nodes[0], self.log)
# send easier block through same p2p connection too
node0.send_message(msg_block(block7_easier))
self.nodes[0].waitforblockheight(104)
assert_equal(block7_easier.hash, self.nodes[0].getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
self.nodes[0].waitaftervalidatingblock(block6_hard.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block8_hard.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block7_easier.hash, self.nodes[0].getbestblockhash())
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
self.connection = None
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
self.connection = None
self.ping_counter = 1
self.last_pong = msg_pong()
def run_test(self):
# Setup the p2p connections and start up the network thread.
test_node = NodeConnCB() # connects to node0 (not whitelisted)
white_node = NodeConnCB() # connects to node1 (whitelisted)
min_work_node = NodeConnCB() # connects to node2 (not whitelisted)
connections = [
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node),
NodeConn('127.0.0.1', p2p_port(1), self.nodes[1], white_node),
NodeConn('127.0.0.1', p2p_port(2), self.nodes[2], min_work_node)
]
test_node.add_connection(connections[0])
white_node.add_connection(connections[1])
min_work_node.add_connection(connections[2])
NetworkThread().start() # Start up network handling in another thread
# Test logic begins here
test_node.wait_for_verack()
white_node.wait_for_verack()
min_work_node.wait_for_verack()
# 1. Have nodes mine a block (nodes1/2 leave IBD)
[n.generate(1) for n in self.nodes]
tips = [int("0x" + n.getbestblockhash(), 0) for n in self.nodes]
# 2. Send one block that builds on each tip.
# This should be accepted by nodes 1/2
blocks_h2 = [] # the height 2 blocks on each node's chain
block_time = int(time.time()) + 1
for i in range(3):
blocks_h2.append(
create_block(tips[i], create_coinbase(2), block_time))
blocks_h2[i].solve()
block_time += 1
test_node.send_message(MsgBlock(blocks_h2[0]))
white_node.send_message(MsgBlock(blocks_h2[1]))
min_work_node.send_message(MsgBlock(blocks_h2[2]))
for x in [test_node, white_node, min_work_node]:
x.sync_with_ping()
assert_equal(self.nodes[0].getblockcount(), 2)
assert_equal(self.nodes[1].getblockcount(), 2)
assert_equal(self.nodes[2].getblockcount(), 1)
self.log.info(
"First height 2 block accepted by node0/node1; correctly rejected by node2"
)
# 3. Send another block that builds on the original tip.
blocks_h2f = [] # Blocks at height 2 that fork off the main chain
for i in range(2):
blocks_h2f.append(
create_block(tips[i], create_coinbase(2),
blocks_h2[i].nTime + 1))
blocks_h2f[i].solve()
test_node.send_message(MsgBlock(blocks_h2f[0]))
white_node.send_message(MsgBlock(blocks_h2f[1]))
for x in [test_node, white_node]:
x.sync_with_ping()
for x in self.nodes[0].getchaintips():
if x['hash'] == blocks_h2f[0].hash:
assert_equal(x['status'], "headers-only")
for x in self.nodes[1].getchaintips():
if x['hash'] == blocks_h2f[1].hash:
assert_equal(x['status'], "valid-headers")
self.log.info(
"Second height 2 block accepted only from whitelisted peer")
# 4. Now send another block that builds on the forking chain.
blocks_h3 = []
for i in range(2):
blocks_h3.append(
create_block(blocks_h2f[i].sha256, create_coinbase(3),
blocks_h2f[i].nTime + 1))
blocks_h3[i].solve()
test_node.send_message(MsgBlock(blocks_h3[0]))
white_node.send_message(MsgBlock(blocks_h3[1]))
for x in [test_node, white_node]:
x.sync_with_ping()
# Since the earlier block was not processed by node0, the new block
# can't be fully validated.
for x in self.nodes[0].getchaintips():
if x['hash'] == blocks_h3[0].hash:
assert_equal(x['status'], "headers-only")
# But this block should be accepted by node0 since it has more work.
self.nodes[0].getblock(blocks_h3[0].hash)
self.log.info(
"Unrequested more-work block accepted from non-whitelisted peer")
# Node1 should have accepted and reorged.
assert_equal(self.nodes[1].getblockcount(), 3)
self.log.info(
"Successfully reorged to length 3 chain from whitelisted peer")
# 4b. Now mine 288 more blocks and deliver; all should be processed but
# the last (height-too-high) on node0. Node1 should process the tip if
# we give it the headers chain leading to the tip.
tips = blocks_h3
headers_message = MsgHeaders()
all_blocks = [] # node0's blocks
for j in range(2):
for i in range(288):
next_block = create_block(tips[j].sha256,
create_coinbase(i + 4),
tips[j].nTime + 1)
next_block.solve()
if j == 0:
test_node.send_message(MsgBlock(next_block))
all_blocks.append(next_block)
else:
headers_message.headers.append(CBlockHeader(next_block))
tips[j] = next_block
time.sleep(2)
# Blocks 1-287 should be accepted, block 288 should be ignored because it's too far ahead
for x in all_blocks[:-1]:
self.nodes[0].getblock(x.hash)
assert_raises_rpc_error(-1, "Block not found on disk",
self.nodes[0].getblock, all_blocks[-1].hash)
headers_message.headers.pop() # Ensure the last block is unrequested
white_node.send_message(headers_message) # Send headers leading to tip
white_node.send_message(MsgBlock(tips[1])) # Now deliver the tip
white_node.sync_with_ping()
self.nodes[1].getblock(tips[1].hash)
self.log.info(
"Unrequested block far ahead of tip accepted from whitelisted peer"
)
# 5. Test handling of unrequested block on the node that didn't process
# Should still not be processed (even though it has a child that has more
# work).
test_node.send_message(MsgBlock(blocks_h2f[0]))
# Here, if the sleep is too short, the test could falsely succeed (if the
# node hasn't processed the block by the time the sleep returns, and then
# the node processes it and incorrectly advances the tip).
# But this would be caught later on, when we verify that an inv triggers
# a getdata request for this block.
test_node.sync_with_ping()
assert_equal(self.nodes[0].getblockcount(), 2)
self.log.info(
"Unrequested block that would complete more-work chain was ignored"
)
# 6. Try to get node to request the missing block.
# Poke the node with an inv for block at height 3 and see if that
# triggers a getdata on block 2 (it should if block 2 is missing).
with mininode_lock:
# Clear state so we can check the getdata request
test_node.last_message.pop("getdata", None)
test_node.send_message(MsgInv([CInv(2, blocks_h3[0].sha256)]))
test_node.sync_with_ping()
with mininode_lock:
getdata = test_node.last_message["getdata"]
# Check that the getdata includes the right block
assert_equal(getdata.inv[0].hash, blocks_h2f[0].sha256)
self.log.info("Inv at tip triggered getdata for unprocessed block")
# 7. Send the missing block for the third time (now it is requested)
test_node.send_message(MsgBlock(blocks_h2f[0]))
test_node.sync_with_ping()
assert_equal(self.nodes[0].getblockcount(), 290)
self.log.info(
"Successfully reorged to longer chain from non-whitelisted peer")
# 8. Connect node2 to node0 and ensure it is able to sync
connect_nodes(self.nodes[0], 2)
sync_blocks([self.nodes[0], self.nodes[2]])
self.log.info("Successfully synced nodes 2 and 0")
[c.disconnect_node() for c in connections]
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection0 = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection0)
node1 = NodeConnCB()
connection1 = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection1)
# *** Prepare node connection for early announcements testing
node2 = NodeConnCB()
node2.add_connection(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2))
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
# *** Activate early announcement functionality for this connection
# After this point the early announcements are not received yet -
# we still need to set latest announced block (CNode::pindexBestKnownBlock)
# which is set for e.g. by calling best headers message with locator
# set to non-null
node2.wait_for_verack()
node2.send_message(msg_sendcmpct(announce=True))
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
_, outs, block_count = prepare_init_chain(self.chain,
101,
1,
block_0=False,
start_block=0,
node=node0)
out = outs[0]
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# adding extra transactions to get different block hashes
block2_hard = self.chain.next_block(block_count,
spend=out,
extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count,
spend=out,
extra_txns=2)
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count,
spend=out,
extra_txns=10)
block_count += 1
# send three "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash},
self.nodes[0], self.log)
# *** Complete early announcement setup by sending getheaders message
# with a non-null locator (pointing to the last block that we know
# of on python side - we claim that we know of all the blocks that
# bitcoind node knows of)
#
# We also set on_cmpctblock handler as early announced blocks are
# announced via compact block messages instead of inv messages
node2.send_and_ping(
msg_getheaders(
locator_have=[int(self.nodes[0].getbestblockhash(), 16)]))
receivedAnnouncement = False
waiting_for_announcement_block_hash = block2_hard.sha256
def on_cmpctblock(conn, message):
nonlocal receivedAnnouncement
message.header_and_shortids.header.calc_sha256()
if message.header_and_shortids.header.sha256 == waiting_for_announcement_block_hash:
receivedAnnouncement = True
node2.on_cmpctblock = on_cmpctblock
# send one block via p2p and one via rpc
node0.send_message(msg_block(block2_hard))
# *** make sure that we receive announcement of the block before it has
# been validated
wait_until(lambda: receivedAnnouncement)
# making rpc call submitblock in a separate thread because waitaftervalidation is blocking
# the return of submitblock
submitblock_thread = threading.Thread(target=self.nodes[0].submitblock,
args=(ToHex(block4_hard), ))
submitblock_thread.start()
# because self.nodes[0] rpc is blocked we use another rpc client
rpc_client = get_rpc_proxy(rpc_url(
get_datadir_path(self.options.tmpdir, 0), 0),
0,
coveragedir=self.options.coveragedir)
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash},
rpc_client, self.log)
# *** prepare to intercept block3_easier announcement - it will not be
# announced before validation is complete as early announcement is
# limited to announcing one block per height (siblings are ignored)
# but after validation is complete we should still get the announcing
# compact block message
receivedAnnouncement = False
waiting_for_announcement_block_hash = block3_easier.sha256
self.log.info(f"easy block3 hash: {block3_easier.hash}")
node1.send_message(msg_block(block3_easier))
# *** Make sure that we receive compact block announcement of the block
# after the validation is complete even though it was not the first
# block that was received by bitcoind node.
#
# Also make sure that we receive inv announcement of the block after
# the validation is complete by the nodes that are not using early
# announcement functionality.
wait_until(lambda: receivedAnnouncement)
node0.wait_for_inv([CInv(CInv.BLOCK, block3_easier.sha256)])
# node 1 was the sender but receives inv for block non the less
# (with early announcement that's not the case - sender does not receive the announcement)
node1.wait_for_inv([CInv(CInv.BLOCK, block3_easier.sha256)])
rpc_client.waitforblockheight(102)
assert_equal(block3_easier.hash, rpc_client.getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
rpc_client.waitaftervalidatingblock(block2_hard.hash, "remove")
rpc_client.waitaftervalidatingblock(block4_hard.hash, "remove")
submitblock_thread.join()
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
def run_test(self):
block_count = 0
# Create a P2P connection
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
network_thread = NetworkThread()
network_thread.start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
for i in range(100):
block = self.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
block1_num = block_count - 1
# num of sig operations in one transaction
num_of_sig_checks = 70
expensive_scriptPubKey = [
OP_DUP, OP_HASH160,
hash160(self.coinbase_pubkey), OP_EQUALVERIFY, OP_CHECKSIG, OP_DROP
] * num_of_sig_checks + [
OP_DUP, OP_HASH160,
hash160(self.coinbase_pubkey), OP_EQUALVERIFY, OP_CHECKSIG
]
money_to_spend = 5000000000
spend = out[0]
block2_hard = self.next_block(block_count)
# creates 4000 hard transaction and 4000 transaction to spend them. It will be 8k transactions in total
add_txns = self.get_hard_transactions(
spend,
money_to_spend=money_to_spend,
num_of_transactions=4000,
num_of_sig_checks=num_of_sig_checks,
expensive_script=expensive_scriptPubKey)
self.chain.update_block(block_count, add_txns)
block_count += 1
self.log.info(f"block2_hard hash: {block2_hard.hash}")
self.chain.set_tip(block1_num)
block3_easier = self.next_block(block_count)
add_txns = self.get_hard_transactions(
spend,
money_to_spend=money_to_spend,
num_of_transactions=1000,
num_of_sig_checks=num_of_sig_checks,
expensive_script=expensive_scriptPubKey)
self.chain.update_block(block_count, add_txns)
self.log.info(f"block3_easier hash: {block3_easier.hash}")
node0.send_message(msg_block(block2_hard))
node0.send_message(msg_block(block3_easier))
def wait_for_log():
text_activation = f"Block {block2_hard.hash} was not activated as best"
text_block2 = "Verify 8000 txins"
text_block3 = "Verify 2000 txins"
results = 0
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if text_activation in line:
results += 1
elif text_block2 in line:
results += 1
elif text_block3 in line:
results += 1
return True if results == 3 else False
# wait that everything is written to the log
# try accounting for slower machines by having a large timeout
wait_until(wait_for_log, timeout=120)
text_activation = f"Block {block2_hard.hash} was not activated as best"
text_block2 = "Verify 8000 txins"
text_block3 = "Verify 2000 txins"
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if text_activation in line:
self.log.info(
f"block2_hard was not activated as block3_easy won the validation race"
)
elif text_block2 in line:
line = line.split()
self.log.info(
f"block2_hard took {line[len(line) - 1]} to verify")
elif text_block3 in line:
line = line.split()
self.log.info(
f"block3_easy took {line[len(line)-1]} to verify")
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
node0.connection.close()
def run_test(self):
node0 = NodeConnCB()
connections = [
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
]
node0.add_connection(connections[0])
NetworkThread().start() # Start up network handling in another thread
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.log.info("Mining %d blocks", CLTV_HEIGHT - 2)
self.coinbase_blocks = self.nodes[0].generate(CLTV_HEIGHT - 2)
self.nodeaddress = self.nodes[0].getnewaddress()
self.log.info(
"Test that an invalid-according-to-CLTV transaction can still appear in a block"
)
spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[0],
self.nodeaddress, 1.0)
cltv_invalidate(spendtx)
spendtx.rehash()
tip = self.nodes[0].getbestblockhash()
block_time = self.nodes[0].getblockheader(tip)['mediantime'] + 1
block = create_block(int(tip, 16), create_coinbase(CLTV_HEIGHT - 1),
block_time)
block.nVersion = 3
block.vtx.append(spendtx)
block.hashMerkleRoot = block.calc_merkle_root()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(self.nodes[0].getbestblockhash(), block.hash)
self.log.info("Test that blocks must now be at least version 4")
tip = block.sha256
block_time += 1
block = create_block(tip, create_coinbase(CLTV_HEIGHT), block_time)
block.nVersion = 3
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
wait_until(lambda: "reject" in node0.last_message.keys(),
lock=mininode_lock,
err_msg="last_message")
with mininode_lock:
assert_equal(node0.last_message["reject"].code, REJECT_OBSOLETE)
assert_equal(node0.last_message["reject"].reason,
b'bad-version(0x00000003)')
assert_equal(node0.last_message["reject"].data, block.sha256)
del node0.last_message["reject"]
self.log.info(
"Test that invalid-according-to-cltv transactions cannot appear in a block"
)
block.nVersion = 4
spendtx = create_transaction(self.nodes[0], self.coinbase_blocks[1],
self.nodeaddress, 1.0)
cltv_invalidate(spendtx)
spendtx.rehash()
# First we show that this tx is valid except for CLTV by getting it
# accepted to the mempool (which we can achieve with
# -promiscuousmempoolflags).
node0.send_and_ping(MsgTx(spendtx))
assert spendtx.hash in self.nodes[0].getrawmempool()
# Now we verify that a block with this transaction is invalid.
block.vtx.append(spendtx)
block.hashMerkleRoot = block.calc_merkle_root()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), tip)
wait_until(lambda: "reject" in node0.last_message.keys(),
lock=mininode_lock,
err_msg="last_message")
with mininode_lock:
assert node0.last_message["reject"].code in [
REJECT_INVALID, REJECT_NONSTANDARD
]
assert_equal(node0.last_message["reject"].data, block.sha256)
if node0.last_message["reject"].code == REJECT_INVALID:
# Generic rejection when a block is invalid
assert_equal(node0.last_message["reject"].reason,
b'block-validation-failed')
else:
assert b'Negative locktime' in node0.last_message[
"reject"].reason
self.log.info(
"Test that a version 4 block with a valid-according-to-CLTV transaction is accepted"
)
spendtx = cltv_validate(self.nodes[0], spendtx, CLTV_HEIGHT - 1)
spendtx.rehash()
block.vtx.pop(1)
block.vtx.append(spendtx)
block.hashMerkleRoot = block.calc_merkle_root()
block.solve()
node0.send_and_ping(MsgBlock(block))
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256)
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
self.connection = None
def run_test(self):
test_node = NodeConnCB()
connections = []
connections.append(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node))
test_node.add_connection(connections[0])
NetworkThread().start()
starting_height = 3
self.nodes[0].generate(starting_height)
# Create block with P2SH output and send it to node.
# It should be validated and accepted.
block = self.make_block_withP2SH_coinbase()
test_node.send_message(msg_block(block))
test_node.sync_with_ping()
# check if block was accepted
assert_equal(self.nodes[0].getbestblockhash(), block.hash)
# submitblock with P2SH in coinbase tx (not included in blockchain)
block = self.make_block_withP2SH_coinbase()
block.solve()
assert_raises_rpc_error(-26, "bad-txns-vout-p2sh",
self.nodes[0].submitblock, ToHex(block))
# verifyblockcandidate with P2SH in coinbase tx (not included in blockchain)
assert_raises_rpc_error(-26, "bad-txns-vout-p2sh",
self.nodes[0].verifyblockcandidate,
ToHex(block))
# submitblock without P2SH in coinbase tx (included in blockchain)
hashPrev = int(self.nodes[0].getbestblockhash(), 16)
ctx = create_coinbase(self.nodes[0].getblockcount() + 1)
block2 = create_block(hashPrev, ctx)
block2.solve()
self.nodes[0].submitblock(ToHex(block2))
assert_equal(block2.hash, self.nodes[0].getbestblockhash())
# submit block with: submitminingsolution
# Add P2SH to coinbase output - should be rejected
candidate = self.nodes[0].getminingcandidate(False)
block, ctx = create_block_from_candidate(candidate, False)
coinbase_tx = create_coinbase_P2SH(self.nodes[0].getblockcount() + 1,
example_script_hash)
# submitminingsolution with P2SH in coinbase tx - should be denied.
assert_raises_rpc_error(
-26, "bad-txns-vout-p2sh", self.nodes[0].submitminingsolution, {
'id': candidate['id'],
'nonce': block.nNonce,
'coinbase': '{}'.format(ToHex(coinbase_tx))
})
# submitminingsolution without P2SH in coinbase - should be accepted
candidate = self.nodes[0].getminingcandidate(False)
block, ctx = create_block_from_candidate(candidate, False)
result = self.nodes[0].submitminingsolution({
'id':
candidate['id'],
'nonce':
block.nNonce,
'coinbase':
'{}'.format(ToHex(ctx))
})
assert_equal(result, True)
assert_equal(block.hash, self.nodes[0].getbestblockhash())
# generatetoaddress with nonP2SH address
height_before = self.nodes[0].getblockcount()
address = self.nodes[0].getnewaddress()
self.nodes[0].generatetoaddress(1, address)
height_after = self.nodes[0].getblockcount()
assert_equal(height_before + 1, height_after)
# generatetoaddress with P2SH address (example for regtest: 2MzQwSSnBHWHqSAqtTVQ6v47XtaisrJa1Vc)
assert_raises_rpc_error(-26, "bad-txns-vout-p2sh",
self.nodes[0].generatetoaddress, 1,
'2MzQwSSnBHWHqSAqtTVQ6v47XtaisrJa1Vc')
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
# send one to get out of IBD state
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
node0.send_message(msg_block(block))
self.nodes[0].waitforblockheight(1)
block = self.chain.next_block(block_count)
# set block validating status to wait after validation
self.nodes[0].waitaftervalidatingblock(block.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block.hash}, self.nodes[0], self.log)
node0.send_message(msg_block(block))
node1.send_message(msg_block(block))
# make sure we started validating blocks.
# One is validating the other is ignored.
wait_for_validating_blocks({block.hash}, self.nodes[0], self.log)
def wait_for_log():
line_text = block.hash + " will not be considered by the current"
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if line_text in line:
self.log.info("Found line: %s", line)
return True
return False
# wait for the log of the ignored block.
wait_until(wait_for_log)
# remove block validating status to finish validation
self.nodes[0].waitaftervalidatingblock(block.hash, "remove")
# wait till validation of block finishes
node0.sync_with_ping()
self.nodes[0].waitforblockheight(2)
assert_equal(block.hash, self.nodes[0].getbestblockhash())
def run_test(self):
# Create a P2P connection to the first node
node0 = NodeConnCB()
connections = []
connections.append(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
node0.add_connection(connections[0])
# Start up network handling in another thread. This needs to be called
# after the P2P connections have been created.
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
# Out of IBD
self.nodes[0].generate(1)
# First create funding transaction that pays to output that does not require signatures.
out_value = 10000
ftx = CTransaction()
ftx.vout.append(CTxOut(out_value, CScript([OP_TRUE])))
ftxHex = self.nodes[0].fundrawtransaction(
ToHex(ftx), {'changePosition': len(ftx.vout)})['hex']
ftxHex = self.nodes[0].signrawtransaction(ftxHex)['hex']
ftx = FromHex(CTransaction(), ftxHex)
ftx.rehash()
# Allow coinbase to mature
self.nodes[0].generate(101)
# Feed in funding txn and wait for both nodes to see it
connections[0].send_message(msg_tx(ftx))
wait_until(lambda: ftx.hash in self.nodes[0].getrawmempool(),
timeout=5)
wait_until(lambda: ftx.hash in self.nodes[1].getrawmempool(),
timeout=5)
# Create non-final txn.
parent_txid = ftx.sha256
send_value = out_value - 500
tx = CTransaction()
tx.vin.append(CTxIn(COutPoint(parent_txid, 0), b'', 0x01))
tx.vout.append(CTxOut(int(send_value), CScript([OP_TRUE])))
tx.nLockTime = int(time.time()) + 300
tx.rehash()
# Send non-final txn to node0. It should be forwarded over P2P to node1.
connections[0].send_message(msg_tx(tx))
wait_until(lambda: tx.hash in self.nodes[0].getrawnonfinalmempool(),
timeout=5)
wait_until(lambda: tx.hash in self.nodes[1].getrawnonfinalmempool(),
timeout=5)
assert (tx.hash not in self.nodes[0].getrawmempool())
assert (tx.hash not in self.nodes[1].getrawmempool())
# Create finalising txn.
finaltx = copy.deepcopy(tx)
finaltx.vin[0].nSequence = 0xFFFFFFFF
finaltx.rehash()
# Send finalising txn to node0. It should be forwarded over P2P to node1.
connections[0].send_message(msg_tx(finaltx))
wait_until(lambda: finaltx.hash in self.nodes[0].getrawmempool(),
timeout=5)
wait_until(lambda: finaltx.hash in self.nodes[1].getrawmempool(),
timeout=5)
assert (tx.hash not in self.nodes[0].getrawnonfinalmempool())
assert (tx.hash not in self.nodes[1].getrawnonfinalmempool())
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
for i in range(100):
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
# wait till validation of block or blocks finishes
node0.sync_with_ping()
block1 = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block_count += 1
# send block but block him at validation point
self.nodes[0].waitaftervalidatingblock(block1.hash, "add")
node0.send_message(msg_block(block1))
self.log.info(f"block1 hash: {block1.hash}")
# make sure block hash is in waiting list
wait_for_waiting_blocks({block1.hash}, self.nodes[0], self.log)
# send child block
block2 = self.chain.next_block(block_count,
spend=out[1],
extra_txns=10)
block_count += 1
node0.send_message(msg_block(block2))
self.log.info(f"block2 hash: {block2.hash}")
def wait_for_log():
line_text = block2.hash + " will not be considered by the current"
for line in open(
glob.glob(self.options.tmpdir + "/node0" +
"/regtest/bitcoind.log")[0]):
if line_text in line:
self.log.info("Found line: %s", line)
return True
return False
wait_until(wait_for_log)
self.nodes[0].waitaftervalidatingblock(block1.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# block that arrived last on competing chain should be active
assert_equal(block2.hash, self.nodes[0].getbestblockhash())
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
for i in range(100):
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count-1
# left branch
block2 = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block2_num = block_count
block_count += 1
node0.send_message(msg_block(block2))
self.log.info(f"block2 hash: {block2.hash}")
self.nodes[0].waitforblockheight(102)
# send blocks 3,4 for parallel validation on left branch
block3 = self.chain.next_block(block_count, spend=out[1], extra_txns=10)
block_count += 1
self.chain.set_tip(block2_num)
block4 = self.chain.next_block(block_count, spend=out[1], extra_txns=8)
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"block3 hash: {block3.hash}")
self.nodes[0].waitaftervalidatingblock(block3.hash, "add")
self.log.info(f"block4 hash: {block4.hash}")
self.nodes[0].waitaftervalidatingblock(block4.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block3.hash, block4.hash}, self.nodes[0], self.log)
node0.send_message(msg_block(block3))
node2.send_message(msg_block(block4))
# make sure we started validating blocks
wait_for_validating_blocks({block3.hash, block4.hash}, self.nodes[0], self.log)
# right branch
self.chain.set_tip(tip_block_num)
block5 = self.chain.next_block(block_count, spend=out[0], extra_txns=10)
block_count += 1
node1.send_message(msg_block(block5))
self.log.info(f"block5 hash: {block5.hash}")
# and two blocks to extend second branch to cause reorg
# - they must be sent from the same node as otherwise they will be
# rejected with "prev block not found"
block6 = self.chain.next_block(block_count)
node1.send_message(msg_block(block6))
self.log.info(f"block6 hash: {block6.hash}")
block_count += 1
block7 = self.chain.next_block(block_count)
node1.send_message(msg_block(block7))
self.log.info(f"block7 hash: {block7.hash}")
block_count += 1
self.nodes[0].waitforblockheight(104)
assert_equal(block7.hash, self.nodes[0].getbestblockhash())
self.log.info("releasing wait status on parallel blocks to finish their validation")
self.nodes[0].waitaftervalidatingblock(block3.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block4.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# block that arrived last on competing chain should be active
assert_equal(block7.hash, self.nodes[0].getbestblockhash())
def __init__(self):
NodeConnCB.__init__(self)
self.log = logging.getLogger("BlockRelayTest")
self.create_callback_map()
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
node1 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node1)
node1.add_connection(connection)
node2 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node2)
node2.add_connection(connection)
NetworkThread().start()
# wait_for_verack ensures that the P2P connection is fully up.
node0.wait_for_verack()
node1.wait_for_verack()
node2.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
for i in range(100):
block = self.chain.next_block(block_count)
block_count += 1
self.chain.save_spendable_output()
node0.send_message(msg_block(block))
out = []
for i in range(100):
out.append(self.chain.get_spendable_output())
self.log.info("waiting for block height 101 via rpc")
self.nodes[0].waitforblockheight(101)
tip_block_num = block_count - 1
# adding extra transactions to get different block hashes
block2_hard = self.chain.next_block(block_count, spend=out[0], extra_txns=8)
block_count += 1
self.chain.set_tip(tip_block_num)
block3_easier = self.chain.next_block(block_count, spend=out[0], extra_txns=2)
block_count += 1
self.chain.set_tip(tip_block_num)
block4_hard = self.chain.next_block(block_count, spend=out[0], extra_txns=10)
block_count += 1
# send two "hard" blocks, with waitaftervalidatingblock we artificially
# extend validation time.
self.log.info(f"hard block2 hash: {block2_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "add")
self.log.info(f"hard block4 hash: {block4_hard.hash}")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "add")
# make sure block hashes are in waiting list
wait_for_waiting_blocks({block2_hard.hash, block4_hard.hash}, self.nodes[0], self.log)
node0.send_message(msg_block(block2_hard))
node1.send_message(msg_block(block4_hard))
# make sure we started validating blocks
wait_for_validating_blocks({block2_hard.hash, block4_hard.hash}, self.nodes[0], self.log)
self.log.info(f"easier block3 hash: {block3_easier.hash}")
node2.send_message(msg_block(block3_easier))
self.nodes[0].waitforblockheight(102)
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
# now we can remove waiting status from blocks and finish their validation
self.nodes[0].waitaftervalidatingblock(block2_hard.hash, "remove")
self.nodes[0].waitaftervalidatingblock(block4_hard.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
# easier block should still be on tip
assert_equal(block3_easier.hash, self.nodes[0].getbestblockhash())
def __init__(self):
NodeConnCB.__init__(self)
self.log = logging.getLogger("BlockRelayTest")
self.create_callback_map()
def run_test(self):
node0 = NodeConnCB()
connections = []
connections.append(
NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0))
node0.add_connection(connections[0])
NetworkThread().start()
node0.wait_for_verack()
# Set node time to 60 days ago
self.nodes[0].setmocktime(int(time.time()) - 60 * 24 * 60 * 6)
# Generating a chain of 10 blocks
block_hashes = self.nodes[0].generate(nblocks=10)
# Create longer chain starting 2 blocks before current tip
height = len(block_hashes) - 2
block_hash = block_hashes[height - 1]
block_time = self.nodes[0].getblockheader(block_hash)["mediantime"] + 1
new_blocks = self.build_chain(5, block_hash, height, block_time)
# Force reorg to a longer chain
node0.send_message(msg_headers(new_blocks))
node0.wait_for_getdata()
for block in new_blocks:
node0.send_and_ping(msg_block(block))
# Check that reorg succeeded
assert_equal(self.nodes[0].getblockcount(), 13)
stale_hash = int(block_hashes[-1], 16)
# Check that getdata request for stale block succeeds
self.send_block_request(stale_hash, node0)
test_function = lambda: self.last_block_equals(stale_hash, node0)
wait_until(test_function, timeout=3)
# Check that getheader request for stale block header succeeds
self.send_header_request(stale_hash, node0)
test_function = lambda: self.last_header_equals(stale_hash, node0)
wait_until(test_function, timeout=3)
# Longest chain is extended so stale is much older than chain tip
self.nodes[0].setmocktime(0)
tip = self.nodes[0].generate(nblocks=1)[0]
assert_equal(self.nodes[0].getblockcount(), 14)
# Send getdata & getheaders to refresh last received getheader message
block_hash = int(tip, 16)
self.send_block_request(block_hash, node0)
self.send_header_request(block_hash, node0)
node0.sync_with_ping()
# Request for very old stale block should now fail
self.send_block_request(stale_hash, node0)
time.sleep(3)
assert not self.last_block_equals(stale_hash, node0)
# Request for very old stale block header should now fail
self.send_header_request(stale_hash, node0)
time.sleep(3)
assert not self.last_header_equals(stale_hash, node0)
# Verify we can fetch very old blocks and headers on the active chain
block_hash = int(block_hashes[2], 16)
self.send_block_request(block_hash, node0)
self.send_header_request(block_hash, node0)
node0.sync_with_ping()
self.send_block_request(block_hash, node0)
test_function = lambda: self.last_block_equals(block_hash, node0)
wait_until(test_function, timeout=3)
self.send_header_request(block_hash, node0)
test_function = lambda: self.last_header_equals(block_hash, node0)
wait_until(test_function, timeout=3)
def run_test(self):
block_count = 0
# Create a P2P connections
node0 = NodeConnCB()
connection = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], node0)
node0.add_connection(connection)
NetworkThread().start()
node0.wait_for_verack()
self.chain.set_genesis_hash(int(self.nodes[0].getbestblockhash(), 16))
block = self.chain.next_block(block_count)
block_count += 1
node0.send_message(msg_block(block))
block = self.chain.next_block(block_count)
self.log.info(f"block hash: {block.hash}")
self.nodes[0].waitaftervalidatingblock(block.hash, "add")
# make sure block hash is in waiting list
wait_for_waiting_blocks({block.hash}, self.nodes[0], self.log)
self.log.info("sending block")
node0.send_message(msg_block(block))
# make sure we started validating block
wait_for_validating_blocks({block.hash}, self.nodes[0], self.log)
# sleep a bit and check that in the meantime validation hasn't proceeded
time.sleep(1)
assert (block.hash != self.nodes[0].getbestblockhash())
# after validating the block we release its waiting status
self.nodes[0].waitaftervalidatingblock(block.hash, "remove")
# wait till validation of block or blocks finishes
node0.sync_with_ping()
assert_equal(block.hash, self.nodes[0].getbestblockhash())