398 lines
18 KiB
Python
Executable file
398 lines
18 KiB
Python
Executable file
#!/usr/bin/env python2
|
|
# Copyright (c) 2015 The Bitcoin Core developers
|
|
# Distributed under the MIT/X11 software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
#
|
|
|
|
from mininode import *
|
|
from blockstore import BlockStore, TxStore
|
|
from util import p2p_port
|
|
|
|
'''
|
|
This is a tool for comparing two or more bitcoinds to each other
|
|
using a script provided.
|
|
|
|
To use, create a class that implements get_tests(), and pass it in
|
|
as the test generator to TestManager. get_tests() should be a python
|
|
generator that returns TestInstance objects. See below for definition.
|
|
'''
|
|
|
|
# TestNode behaves as follows:
|
|
# Configure with a BlockStore and TxStore
|
|
# on_inv: log the message but don't request
|
|
# on_headers: log the chain tip
|
|
# on_pong: update ping response map (for synchronization)
|
|
# on_getheaders: provide headers via BlockStore
|
|
# on_getdata: provide blocks via BlockStore
|
|
|
|
global mininode_lock
|
|
|
|
class RejectResult(object):
|
|
'''
|
|
Outcome that expects rejection of a transaction or block.
|
|
'''
|
|
def __init__(self, code, reason=''):
|
|
self.code = code
|
|
self.reason = reason
|
|
def match(self, other):
|
|
if self.code != other.code:
|
|
return False
|
|
return other.reason.startswith(self.reason)
|
|
def __repr__(self):
|
|
return '%i:%s' % (self.code,self.reason or '*')
|
|
|
|
class TestNode(NodeConnCB):
|
|
|
|
def __init__(self, block_store, tx_store):
|
|
NodeConnCB.__init__(self)
|
|
self.conn = None
|
|
self.bestblockhash = None
|
|
self.block_store = block_store
|
|
self.block_request_map = {}
|
|
self.tx_store = tx_store
|
|
self.tx_request_map = {}
|
|
self.block_reject_map = {}
|
|
self.tx_reject_map = {}
|
|
|
|
# When the pingmap is non-empty we're waiting for
|
|
# a response
|
|
self.pingMap = {}
|
|
self.lastInv = []
|
|
self.closed = False
|
|
|
|
def on_close(self, conn):
|
|
self.closed = True
|
|
|
|
def add_connection(self, conn):
|
|
self.conn = conn
|
|
|
|
def on_headers(self, conn, message):
|
|
if len(message.headers) > 0:
|
|
best_header = message.headers[-1]
|
|
best_header.calc_sha256()
|
|
self.bestblockhash = best_header.sha256
|
|
|
|
def on_getheaders(self, conn, message):
|
|
response = self.block_store.headers_for(message.locator, message.hashstop)
|
|
if response is not None:
|
|
conn.send_message(response)
|
|
|
|
def on_getdata(self, conn, message):
|
|
[conn.send_message(r) for r in self.block_store.get_blocks(message.inv)]
|
|
[conn.send_message(r) for r in self.tx_store.get_transactions(message.inv)]
|
|
|
|
for i in message.inv:
|
|
if i.type == 1:
|
|
self.tx_request_map[i.hash] = True
|
|
elif i.type == 2:
|
|
self.block_request_map[i.hash] = True
|
|
|
|
def on_inv(self, conn, message):
|
|
self.lastInv = [x.hash for x in message.inv]
|
|
|
|
def on_pong(self, conn, message):
|
|
try:
|
|
del self.pingMap[message.nonce]
|
|
except KeyError:
|
|
raise AssertionError("Got pong for unknown ping [%s]" % repr(message))
|
|
|
|
def on_reject(self, conn, message):
|
|
if message.message == 'tx':
|
|
self.tx_reject_map[message.data] = RejectResult(message.code, message.reason)
|
|
if message.message == 'block':
|
|
self.block_reject_map[message.data] = RejectResult(message.code, message.reason)
|
|
|
|
def send_inv(self, obj):
|
|
mtype = 2 if isinstance(obj, CBlock) else 1
|
|
self.conn.send_message(msg_inv([CInv(mtype, obj.sha256)]))
|
|
|
|
def send_getheaders(self):
|
|
# We ask for headers from their last tip.
|
|
m = msg_getheaders()
|
|
m.locator = self.block_store.get_locator(self.bestblockhash)
|
|
self.conn.send_message(m)
|
|
|
|
# This assumes BIP31
|
|
def send_ping(self, nonce):
|
|
self.pingMap[nonce] = True
|
|
self.conn.send_message(msg_ping(nonce))
|
|
|
|
def received_ping_response(self, nonce):
|
|
return nonce not in self.pingMap
|
|
|
|
def send_mempool(self):
|
|
self.lastInv = []
|
|
self.conn.send_message(msg_mempool())
|
|
|
|
# TestInstance:
|
|
#
|
|
# Instances of these are generated by the test generator, and fed into the
|
|
# comptool.
|
|
#
|
|
# "blocks_and_transactions" should be an array of
|
|
# [obj, True/False/None, hash/None]:
|
|
# - obj is either a CBlock, CBlockHeader, or a CTransaction, and
|
|
# - the second value indicates whether the object should be accepted
|
|
# into the blockchain or mempool (for tests where we expect a certain
|
|
# answer), or "None" if we don't expect a certain answer and are just
|
|
# comparing the behavior of the nodes being tested.
|
|
# - the third value is the hash to test the tip against (if None or omitted,
|
|
# use the hash of the block)
|
|
# - NOTE: if a block header, no test is performed; instead the header is
|
|
# just added to the block_store. This is to facilitate block delivery
|
|
# when communicating with headers-first clients (when withholding an
|
|
# intermediate block).
|
|
# sync_every_block: if True, then each block will be inv'ed, synced, and
|
|
# nodes will be tested based on the outcome for the block. If False,
|
|
# then inv's accumulate until all blocks are processed (or max inv size
|
|
# is reached) and then sent out in one inv message. Then the final block
|
|
# will be synced across all connections, and the outcome of the final
|
|
# block will be tested.
|
|
# sync_every_tx: analogous to behavior for sync_every_block, except if outcome
|
|
# on the final tx is None, then contents of entire mempool are compared
|
|
# across all connections. (If outcome of final tx is specified as true
|
|
# or false, then only the last tx is tested against outcome.)
|
|
|
|
class TestInstance(object):
|
|
def __init__(self, objects=None, sync_every_block=True, sync_every_tx=False):
|
|
self.blocks_and_transactions = objects if objects else []
|
|
self.sync_every_block = sync_every_block
|
|
self.sync_every_tx = sync_every_tx
|
|
|
|
class TestManager(object):
|
|
|
|
def __init__(self, testgen, datadir):
|
|
self.test_generator = testgen
|
|
self.connections = []
|
|
self.test_nodes = []
|
|
self.block_store = BlockStore(datadir)
|
|
self.tx_store = TxStore(datadir)
|
|
self.ping_counter = 1
|
|
|
|
def add_all_connections(self, nodes):
|
|
for i in range(len(nodes)):
|
|
# Create a p2p connection to each node
|
|
test_node = TestNode(self.block_store, self.tx_store)
|
|
self.test_nodes.append(test_node)
|
|
self.connections.append(NodeConn('127.0.0.1', p2p_port(i), nodes[i], test_node))
|
|
# Make sure the TestNode (callback class) has a reference to its
|
|
# associated NodeConn
|
|
test_node.add_connection(self.connections[-1])
|
|
|
|
def wait_for_disconnections(self):
|
|
def disconnected():
|
|
return all(node.closed for node in self.test_nodes)
|
|
return wait_until(disconnected, timeout=10)
|
|
|
|
def wait_for_verack(self):
|
|
def veracked():
|
|
return all(node.verack_received for node in self.test_nodes)
|
|
return wait_until(veracked, timeout=10)
|
|
|
|
def wait_for_pings(self, counter):
|
|
def received_pongs():
|
|
return all(node.received_ping_response(counter) for node in self.test_nodes)
|
|
return wait_until(received_pongs)
|
|
|
|
# sync_blocks: Wait for all connections to request the blockhash given
|
|
# then send get_headers to find out the tip of each node, and synchronize
|
|
# the response by using a ping (and waiting for pong with same nonce).
|
|
def sync_blocks(self, blockhash, num_blocks):
|
|
def blocks_requested():
|
|
return all(
|
|
blockhash in node.block_request_map and node.block_request_map[blockhash]
|
|
for node in self.test_nodes
|
|
)
|
|
|
|
# --> error if not requested
|
|
if not wait_until(blocks_requested, attempts=20*num_blocks):
|
|
# print [ c.cb.block_request_map for c in self.connections ]
|
|
raise AssertionError("Not all nodes requested block")
|
|
|
|
# Send getheaders message
|
|
[ c.cb.send_getheaders() for c in self.connections ]
|
|
|
|
# Send ping and wait for response -- synchronization hack
|
|
[ c.cb.send_ping(self.ping_counter) for c in self.connections ]
|
|
self.wait_for_pings(self.ping_counter)
|
|
self.ping_counter += 1
|
|
|
|
# Analogous to sync_block (see above)
|
|
def sync_transaction(self, txhash, num_events):
|
|
# Wait for nodes to request transaction (50ms sleep * 20 tries * num_events)
|
|
def transaction_requested():
|
|
return all(
|
|
txhash in node.tx_request_map and node.tx_request_map[txhash]
|
|
for node in self.test_nodes
|
|
)
|
|
|
|
# --> error if not requested
|
|
if not wait_until(transaction_requested, attempts=20*num_events):
|
|
# print [ c.cb.tx_request_map for c in self.connections ]
|
|
raise AssertionError("Not all nodes requested transaction")
|
|
|
|
# Get the mempool
|
|
[ c.cb.send_mempool() for c in self.connections ]
|
|
|
|
# Send ping and wait for response -- synchronization hack
|
|
[ c.cb.send_ping(self.ping_counter) for c in self.connections ]
|
|
self.wait_for_pings(self.ping_counter)
|
|
self.ping_counter += 1
|
|
|
|
# Sort inv responses from each node
|
|
with mininode_lock:
|
|
[ c.cb.lastInv.sort() for c in self.connections ]
|
|
|
|
# Verify that the tip of each connection all agree with each other, and
|
|
# with the expected outcome (if given)
|
|
def check_results(self, blockhash, outcome):
|
|
with mininode_lock:
|
|
for c in self.connections:
|
|
if outcome is None:
|
|
if c.cb.bestblockhash != self.connections[0].cb.bestblockhash:
|
|
return False
|
|
elif isinstance(outcome, RejectResult): # Check that block was rejected w/ code
|
|
if c.cb.bestblockhash == blockhash:
|
|
return False
|
|
if blockhash not in c.cb.block_reject_map:
|
|
print 'Block not in reject map: %064x' % (blockhash)
|
|
return False
|
|
if not outcome.match(c.cb.block_reject_map[blockhash]):
|
|
print 'Block rejected with %s instead of expected %s: %064x' % (c.cb.block_reject_map[blockhash], outcome, blockhash)
|
|
return False
|
|
elif ((c.cb.bestblockhash == blockhash) != outcome):
|
|
# print c.cb.bestblockhash, blockhash, outcome
|
|
return False
|
|
return True
|
|
|
|
# Either check that the mempools all agree with each other, or that
|
|
# txhash's presence in the mempool matches the outcome specified.
|
|
# This is somewhat of a strange comparison, in that we're either comparing
|
|
# a particular tx to an outcome, or the entire mempools altogether;
|
|
# perhaps it would be useful to add the ability to check explicitly that
|
|
# a particular tx's existence in the mempool is the same across all nodes.
|
|
def check_mempool(self, txhash, outcome):
|
|
with mininode_lock:
|
|
for c in self.connections:
|
|
if outcome is None:
|
|
# Make sure the mempools agree with each other
|
|
if c.cb.lastInv != self.connections[0].cb.lastInv:
|
|
# print c.rpc.getrawmempool()
|
|
return False
|
|
elif isinstance(outcome, RejectResult): # Check that tx was rejected w/ code
|
|
if txhash in c.cb.lastInv:
|
|
return False
|
|
if txhash not in c.cb.tx_reject_map:
|
|
print 'Tx not in reject map: %064x' % (txhash)
|
|
return False
|
|
if not outcome.match(c.cb.tx_reject_map[txhash]):
|
|
print 'Tx rejected with %s instead of expected %s: %064x' % (c.cb.tx_reject_map[txhash], outcome, txhash)
|
|
return False
|
|
elif ((txhash in c.cb.lastInv) != outcome):
|
|
# print c.rpc.getrawmempool(), c.cb.lastInv
|
|
return False
|
|
return True
|
|
|
|
def run(self):
|
|
# Wait until verack is received
|
|
self.wait_for_verack()
|
|
|
|
test_number = 1
|
|
for test_instance in self.test_generator.get_tests():
|
|
# We use these variables to keep track of the last block
|
|
# and last transaction in the tests, which are used
|
|
# if we're not syncing on every block or every tx.
|
|
[ block, block_outcome, tip ] = [ None, None, None ]
|
|
[ tx, tx_outcome ] = [ None, None ]
|
|
invqueue = []
|
|
|
|
for test_obj in test_instance.blocks_and_transactions:
|
|
b_or_t = test_obj[0]
|
|
outcome = test_obj[1]
|
|
# Determine if we're dealing with a block or tx
|
|
if isinstance(b_or_t, CBlock): # Block test runner
|
|
block = b_or_t
|
|
block_outcome = outcome
|
|
tip = block.sha256
|
|
# each test_obj can have an optional third argument
|
|
# to specify the tip we should compare with
|
|
# (default is to use the block being tested)
|
|
if len(test_obj) >= 3:
|
|
tip = test_obj[2]
|
|
|
|
# Add to shared block_store, set as current block
|
|
# If there was an open getdata request for the block
|
|
# previously, and we didn't have an entry in the
|
|
# block_store, then immediately deliver, because the
|
|
# node wouldn't send another getdata request while
|
|
# the earlier one is outstanding.
|
|
first_block_with_hash = True
|
|
if self.block_store.get(block.sha256) is not None:
|
|
first_block_with_hash = False
|
|
with mininode_lock:
|
|
self.block_store.add_block(block)
|
|
for c in self.connections:
|
|
if first_block_with_hash and block.sha256 in c.cb.block_request_map and c.cb.block_request_map[block.sha256] == True:
|
|
# There was a previous request for this block hash
|
|
# Most likely, we delivered a header for this block
|
|
# but never had the block to respond to the getdata
|
|
c.send_message(msg_block(block))
|
|
else:
|
|
c.cb.block_request_map[block.sha256] = False
|
|
# Either send inv's to each node and sync, or add
|
|
# to invqueue for later inv'ing.
|
|
if (test_instance.sync_every_block):
|
|
[ c.cb.send_inv(block) for c in self.connections ]
|
|
self.sync_blocks(block.sha256, 1)
|
|
if (not self.check_results(tip, outcome)):
|
|
raise AssertionError("Test failed at test %d" % test_number)
|
|
else:
|
|
invqueue.append(CInv(2, block.sha256))
|
|
elif isinstance(b_or_t, CBlockHeader):
|
|
block_header = b_or_t
|
|
self.block_store.add_header(block_header)
|
|
else: # Tx test runner
|
|
assert(isinstance(b_or_t, CTransaction))
|
|
tx = b_or_t
|
|
tx_outcome = outcome
|
|
# Add to shared tx store and clear map entry
|
|
with mininode_lock:
|
|
self.tx_store.add_transaction(tx)
|
|
for c in self.connections:
|
|
c.cb.tx_request_map[tx.sha256] = False
|
|
# Again, either inv to all nodes or save for later
|
|
if (test_instance.sync_every_tx):
|
|
[ c.cb.send_inv(tx) for c in self.connections ]
|
|
self.sync_transaction(tx.sha256, 1)
|
|
if (not self.check_mempool(tx.sha256, outcome)):
|
|
raise AssertionError("Test failed at test %d" % test_number)
|
|
else:
|
|
invqueue.append(CInv(1, tx.sha256))
|
|
# Ensure we're not overflowing the inv queue
|
|
if len(invqueue) == MAX_INV_SZ:
|
|
[ c.send_message(msg_inv(invqueue)) for c in self.connections ]
|
|
invqueue = []
|
|
|
|
# Do final sync if we weren't syncing on every block or every tx.
|
|
if (not test_instance.sync_every_block and block is not None):
|
|
if len(invqueue) > 0:
|
|
[ c.send_message(msg_inv(invqueue)) for c in self.connections ]
|
|
invqueue = []
|
|
self.sync_blocks(block.sha256, len(test_instance.blocks_and_transactions))
|
|
if (not self.check_results(tip, block_outcome)):
|
|
raise AssertionError("Block test failed at test %d" % test_number)
|
|
if (not test_instance.sync_every_tx and tx is not None):
|
|
if len(invqueue) > 0:
|
|
[ c.send_message(msg_inv(invqueue)) for c in self.connections ]
|
|
invqueue = []
|
|
self.sync_transaction(tx.sha256, len(test_instance.blocks_and_transactions))
|
|
if (not self.check_mempool(tx.sha256, tx_outcome)):
|
|
raise AssertionError("Mempool test failed at test %d" % test_number)
|
|
|
|
print "Test %d: PASS" % test_number, [ c.rpc.getblockcount() for c in self.connections ]
|
|
test_number += 1
|
|
|
|
[ c.disconnect_node() for c in self.connections ]
|
|
self.wait_for_disconnections()
|
|
self.block_store.close()
|
|
self.tx_store.close()
|