diff options
84 files changed, 5349 insertions, 577 deletions
diff --git a/contrib/devtools/check-doc.py b/contrib/devtools/check-doc.py index 8c73cf1e8a..06c9551ceb 100755 --- a/contrib/devtools/check-doc.py +++ b/contrib/devtools/check-doc.py @@ -21,7 +21,7 @@ CMD_GREP_DOCS = r"egrep -r -I 'HelpMessageOpt\(\"\-[^\"=]+?(=|\")' %s" % (CMD_RO REGEX_ARG = re.compile(r'(?:map(?:Multi)?Args(?:\.count\(|\[)|Get(?:Bool)?Arg\()\"(\-[^\"]+?)\"') REGEX_DOC = re.compile(r'HelpMessageOpt\(\"(\-[^\"=]+?)(?:=|\")') # list unsupported, deprecated and duplicate args as they need no documentation -SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet', '-whitelistalwaysrelay']) +SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet', '-whitelistalwaysrelay', '-prematurewitness', '-walletprematurewitness', '-promiscuousmempoolflags']) def main(): used = check_output(CMD_GREP_ARGS, shell=True) diff --git a/depends/.gitignore b/depends/.gitignore index 1f163897b9..3cb4b9ac15 100644 --- a/depends/.gitignore +++ b/depends/.gitignore @@ -7,3 +7,4 @@ x86_64* i686* mips* arm* +aarch64* diff --git a/doc/release-notes.md b/doc/release-notes.md index df3c265dcd..6e4f390cbc 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -16,6 +16,28 @@ To receive security and update notifications, please subscribe to: <https://bitcoincore.org/en/list/announcements/join/> +Compatibility +============== + +Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support), +an OS initially released in 2001. This means that not even critical security +updates will be released anymore. Without security updates, using a bitcoin +wallet on a XP machine is irresponsible at least. + +In addition to that, with 0.12.x there have been varied reports of Bitcoin Core +randomly crashing on Windows XP. It is [not clear](https://github.com/bitcoin/bitcoin/issues/7681#issuecomment-217439891) +what the source of these crashes is, but it is likely that upstream +libraries such as Qt are no longer being tested on XP. + +We do not have time nor resources to provide support for an OS that is +end-of-life. From 0.13.0 on, Windows XP is no longer supported. Users are +suggested to upgrade to a newer verion of Windows, or install an alternative OS +that is supported. + +No attempt is made to prevent installing or running the software on Windows XP, +you can still do so at your own risk, but do not expect it to work: do not +report issues about Windows XP to the issue tracker. + Notable changes =============== diff --git a/qa/README.md b/qa/README.md index 7489eb5130..723660c6c8 100644 --- a/qa/README.md +++ b/qa/README.md @@ -16,6 +16,12 @@ The python3-zmq library is required. On Ubuntu or Debian it can be installed via sudo apt-get install python3-zmq ``` +OS X +------ +``` +pip3 install pyzmq +``` + Running tests ============= @@ -36,7 +42,7 @@ Run all possible tests with qa/pull-tester/rpc-tests.py -extended By default, tests will be run in parallel if you want to specify how many -tests should be run in parallel, append `-paralell=n` (default n=4). +tests should be run in parallel, append `-parallel=n` (default n=4). If you want to create a basic coverage report for the rpc test suite, append `--coverage`. diff --git a/qa/pull-tester/rpc-tests.py b/qa/pull-tester/rpc-tests.py index 6c0ed4510f..37979a933f 100755 --- a/qa/pull-tester/rpc-tests.py +++ b/qa/pull-tester/rpc-tests.py @@ -136,6 +136,8 @@ testScripts = [ 'invalidtxrequest.py', 'abandonconflict.py', 'p2p-versionbits-warning.py', + 'p2p-segwit.py', + 'segwit.py', 'importprunedfunds.py', 'signmessages.py', ] diff --git a/qa/rpc-tests/maxuploadtarget.py b/qa/rpc-tests/maxuploadtarget.py index 5087f07620..125d4eb275 100755 --- a/qa/rpc-tests/maxuploadtarget.py +++ b/qa/rpc-tests/maxuploadtarget.py @@ -97,7 +97,7 @@ class MaxUploadTest(BitcoinTestFramework): def setup_network(self): # Start a node with maxuploadtarget of 200 MB (/24h) self.nodes = [] - self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-maxuploadtarget=200", "-blockmaxsize=999000"])) + self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-maxuploadtarget=800", "-blockmaxsize=999000"])) def mine_full_block(self, node, address): # Want to create a full block @@ -175,13 +175,13 @@ class MaxUploadTest(BitcoinTestFramework): getdata_request = msg_getdata() getdata_request.inv.append(CInv(2, big_old_block)) - max_bytes_per_day = 200*1024*1024 - daily_buffer = 144 * MAX_BLOCK_SIZE + max_bytes_per_day = 800*1024*1024 + daily_buffer = 144 * 4000000 max_bytes_available = max_bytes_per_day - daily_buffer success_count = max_bytes_available // old_block_size - # 144MB will be reserved for relaying new blocks, so expect this to - # succeed for ~70 tries. + # 576MB will be reserved for relaying new blocks, so expect this to + # succeed for ~235 tries. for i in range(success_count): test_nodes[0].send_message(getdata_request) test_nodes[0].sync_with_ping() @@ -198,9 +198,9 @@ class MaxUploadTest(BitcoinTestFramework): # Requesting the current block on test_nodes[1] should succeed indefinitely, # even when over the max upload target. - # We'll try 200 times + # We'll try 800 times getdata_request.inv = [CInv(2, big_new_block)] - for i in range(200): + for i in range(800): test_nodes[1].send_message(getdata_request) test_nodes[1].sync_with_ping() assert_equal(test_nodes[1].block_receive_map[big_new_block], i+1) diff --git a/qa/rpc-tests/p2p-segwit.py b/qa/rpc-tests/p2p-segwit.py new file mode 100755 index 0000000000..cf78954f28 --- /dev/null +++ b/qa/rpc-tests/p2p-segwit.py @@ -0,0 +1,1646 @@ +#!/usr/bin/env python3 +# Copyright (c) 2016 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. + +from test_framework.mininode import * +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import * +from test_framework.script import * +from test_framework.blocktools import create_block, create_coinbase, add_witness_commitment, WITNESS_COMMITMENT_HEADER +from test_framework.key import CECKey, CPubKey +import time +import random +from binascii import hexlify + +# The versionbit bit used to signal activation of SegWit +VB_WITNESS_BIT = 1 +VB_PERIOD = 144 +VB_ACTIVATION_THRESHOLD = 108 +VB_TOP_BITS = 0x20000000 + +MAX_SIGOP_COST = 80000 + +''' +SegWit p2p test. +''' + +# Calculate the virtual size of a witness block: +# (base + witness/4) +def get_virtual_size(witness_block): + base_size = len(witness_block.serialize()) + total_size = len(witness_block.serialize(with_witness=True)) + # the "+3" is so we round up + vsize = int((3*base_size + total_size + 3)/4) + return vsize + +# Note: we can reduce code by using SingleNodeConnCB (in master, not 0.12) +class TestNode(NodeConnCB): + def __init__(self): + NodeConnCB.__init__(self) + self.connection = None + self.ping_counter = 1 + self.last_pong = msg_pong(0) + self.sleep_time = 0.05 + self.getdataset = set() + + def add_connection(self, conn): + self.connection = conn + + # Wrapper for the NodeConn's send_message function + def send_message(self, message): + self.connection.send_message(message) + + def on_inv(self, conn, message): + self.last_inv = message + + def on_block(self, conn, message): + self.last_block = message.block + self.last_block.calc_sha256() + + def on_getdata(self, conn, message): + for inv in message.inv: + self.getdataset.add(inv.hash) + self.last_getdata = message + + def on_pong(self, conn, message): + self.last_pong = message + + def on_reject(self, conn, message): + self.last_reject = message + #print message + + # Syncing helpers + def sync(self, test_function, timeout=60): + while timeout > 0: + with mininode_lock: + if test_function(): + return + time.sleep(self.sleep_time) + timeout -= self.sleep_time + raise AssertionError("Sync failed to complete") + + def sync_with_ping(self, timeout=60): + self.send_message(msg_ping(nonce=self.ping_counter)) + test_function = lambda: self.last_pong.nonce == self.ping_counter + self.sync(test_function, timeout) + self.ping_counter += 1 + return + + def wait_for_block(self, blockhash, timeout=60): + test_function = lambda: self.last_block != None and self.last_block.sha256 == blockhash + self.sync(test_function, timeout) + return + + def wait_for_getdata(self, timeout=60): + test_function = lambda: self.last_getdata != None + self.sync(test_function, timeout) + + def wait_for_inv(self, expected_inv, timeout=60): + test_function = lambda: self.last_inv != expected_inv + self.sync(test_function, timeout) + + def announce_tx_and_wait_for_getdata(self, tx, timeout=60): + with mininode_lock: + self.last_getdata = None + self.send_message(msg_inv(inv=[CInv(1, tx.sha256)])) + self.wait_for_getdata(timeout) + return + + def announce_block_and_wait_for_getdata(self, block, use_header, timeout=60): + with mininode_lock: + self.last_getdata = None + if use_header: + msg = msg_headers() + msg.headers = [ CBlockHeader(block) ] + self.send_message(msg) + else: + self.send_message(msg_inv(inv=[CInv(2, block.sha256)])) + self.wait_for_getdata() + return + + def announce_block(self, block, use_header): + with mininode_lock: + self.last_getdata = None + if use_header: + msg = msg_headers() + msg.headers = [ CBlockHeader(block) ] + self.send_message(msg) + else: + self.send_message(msg_inv(inv=[CInv(2, block.sha256)])) + + def request_block(self, blockhash, inv_type, timeout=60): + with mininode_lock: + self.last_block = None + self.send_message(msg_getdata(inv=[CInv(inv_type, blockhash)])) + self.wait_for_block(blockhash, timeout) + return self.last_block + + def test_transaction_acceptance(self, tx, with_witness, accepted): + tx_message = msg_tx(tx) + if with_witness: + tx_message = msg_witness_tx(tx) + self.send_message(tx_message) + self.sync_with_ping() + assert_equal(tx.hash in self.connection.rpc.getrawmempool(), accepted) + + # Test whether a witness block had the correct effect on the tip + def test_witness_block(self, block, accepted, with_witness=True): + if with_witness: + self.send_message(msg_witness_block(block)) + else: + self.send_message(msg_block(block)) + self.sync_with_ping() + assert_equal(self.connection.rpc.getbestblockhash() == block.hash, accepted) + + +# Used to keep track of anyone-can-spend outputs that we can use in the tests +class UTXO(object): + def __init__(self, sha256, n, nValue): + self.sha256 = sha256 + self.n = n + self.nValue = nValue + + +class SegWitTest(BitcoinTestFramework): + def setup_chain(self): + initialize_chain_clean(self.options.tmpdir, 3) + + def add_options(self, parser): + parser.add_option("--oldbinary", dest="oldbinary", + default=None, + help="pre-segwit bitcoind binary for upgrade testing") + + def setup_network(self): + self.nodes = [] + self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-logtimemicros=1", "-whitelist=127.0.0.1"])) + # Start a node for testing IsStandard rules. + self.nodes.append(start_node(1, self.options.tmpdir, ["-debug", "-logtimemicros=1", "-whitelist=127.0.0.1", "-acceptnonstdtxn=0"])) + connect_nodes(self.nodes[0], 1) + + # If an old bitcoind is given, do the upgrade-after-activation test. + self.test_upgrade = False + if (self.options.oldbinary != None): + self.nodes.append(start_node(2, self.options.tmpdir, ["-debug", "-whitelist=127.0.0.1"], binary=self.options.oldbinary)) + connect_nodes(self.nodes[0], 2) + self.test_upgrade = True + + ''' Helpers ''' + # Build a block on top of node0's tip. + def build_next_block(self, nVersion=4): + tip = self.nodes[0].getbestblockhash() + height = self.nodes[0].getblockcount() + 1 + block_time = self.nodes[0].getblockheader(tip)["mediantime"] + 1 + block = create_block(int(tip, 16), create_coinbase(height), block_time) + block.nVersion = nVersion + block.rehash() + return block + + # Adds list of transactions to block, adds witness commitment, then solves. + def update_witness_block_with_transactions(self, block, tx_list, nonce=0): + block.vtx.extend(tx_list) + add_witness_commitment(block, nonce) + block.solve() + return + + ''' Individual tests ''' + def test_witness_services(self): + print("\tVerifying NODE_WITNESS service bit") + assert((self.test_node.connection.nServices & NODE_WITNESS) != 0) + + + # See if sending a regular transaction works, and create a utxo + # to use in later tests. + def test_non_witness_transaction(self): + # Mine a block with an anyone-can-spend coinbase, + # let it mature, then try to spend it. + print("\tTesting non-witness transaction") + block = self.build_next_block(nVersion=1) + block.solve() + self.test_node.send_message(msg_block(block)) + self.test_node.sync_with_ping() # make sure the block was processed + txid = block.vtx[0].sha256 + + self.nodes[0].generate(99) # let the block mature + + # Create a transaction that spends the coinbase + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(txid, 0), b"")) + tx.vout.append(CTxOut(49*100000000, CScript([OP_TRUE]))) + tx.calc_sha256() + + # Check that serializing it with or without witness is the same + # This is a sanity check of our testing framework. + assert_equal(msg_tx(tx).serialize(), msg_witness_tx(tx).serialize()) + + self.test_node.send_message(msg_witness_tx(tx)) + self.test_node.sync_with_ping() # make sure the tx was processed + assert(tx.hash in self.nodes[0].getrawmempool()) + # Save this transaction for later + self.utxo.append(UTXO(tx.sha256, 0, 49*100000000)) + self.nodes[0].generate(1) + + + # Verify that blocks with witnesses are rejected before activation. + def test_unnecessary_witness_before_segwit_activation(self): + print("\tTesting behavior of unnecessary witnesses") + # For now, rely on earlier tests to have created at least one utxo for + # us to use + assert(len(self.utxo) > 0) + assert(get_bip9_status(self.nodes[0], 'segwit')['status'] != 'active') + + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, CScript([OP_TRUE]))) + tx.wit.vtxinwit.append(CTxinWitness()) + tx.wit.vtxinwit[0].scriptWitness.stack = [CScript([CScriptNum(1)])] + + # Verify the hash with witness differs from the txid + # (otherwise our testing framework must be broken!) + tx.rehash() + assert(tx.sha256 != tx.calc_sha256(with_witness=True)) + + # Construct a segwit-signaling block that includes the transaction. + block = self.build_next_block(nVersion=(VB_TOP_BITS|(1 << VB_WITNESS_BIT))) + self.update_witness_block_with_transactions(block, [tx]) + # Sending witness data before activation is not allowed (anti-spam + # rule). + self.test_node.test_witness_block(block, accepted=False) + # TODO: fix synchronization so we can test reject reason + # Right now, bitcoind delays sending reject messages for blocks + # until the future, making synchronization here difficult. + #assert_equal(self.test_node.last_reject.reason, "unexpected-witness") + + # But it should not be permanently marked bad... + # Resend without witness information. + self.test_node.send_message(msg_block(block)) + self.test_node.sync_with_ping() + assert_equal(self.nodes[0].getbestblockhash(), block.hash) + + # Update our utxo list; we spent the first entry. + self.utxo.pop(0) + self.utxo.append(UTXO(tx.sha256, 0, tx.vout[0].nValue)) + + + # Mine enough blocks for segwit's vb state to be 'started'. + def advance_to_segwit_started(self): + height = self.nodes[0].getblockcount() + # Will need to rewrite the tests here if we are past the first period + assert(height < VB_PERIOD - 1) + # Genesis block is 'defined'. + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'defined') + # Advance to end of period, status should now be 'started' + self.nodes[0].generate(VB_PERIOD-height-1) + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'started') + + # Mine enough blocks to lock in segwit, but don't activate. + # TODO: we could verify that lockin only happens at the right threshold of + # signalling blocks, rather than just at the right period boundary. + def advance_to_segwit_lockin(self): + height = self.nodes[0].getblockcount() + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'started') + # Advance to end of period, and verify lock-in happens at the end + self.nodes[0].generate(VB_PERIOD-1) + height = self.nodes[0].getblockcount() + assert((height % VB_PERIOD) == VB_PERIOD - 2) + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'started') + self.nodes[0].generate(1) + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'locked_in') + + + # Mine enough blocks to activate segwit. + # TODO: we could verify that activation only happens at the right threshold + # of signalling blocks, rather than just at the right period boundary. + def advance_to_segwit_active(self): + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'locked_in') + height = self.nodes[0].getblockcount() + self.nodes[0].generate(VB_PERIOD - (height%VB_PERIOD) - 2) + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'locked_in') + self.nodes[0].generate(1) + assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'active') + + + # This test can only be run after segwit has activated + def test_witness_commitments(self): + print("\tTesting witness commitments") + + # First try a correct witness commitment. + block = self.build_next_block() + add_witness_commitment(block) + block.solve() + + # Test the test -- witness serialization should be different + assert(msg_witness_block(block).serialize() != msg_block(block).serialize()) + + # This empty block should be valid. + self.test_node.test_witness_block(block, accepted=True) + + # Try to tweak the nonce + block_2 = self.build_next_block() + add_witness_commitment(block_2, nonce=28) + block_2.solve() + + # The commitment should have changed! + assert(block_2.vtx[0].vout[-1] != block.vtx[0].vout[-1]) + + # This should also be valid. + self.test_node.test_witness_block(block_2, accepted=True) + + # Now test commitments with actual transactions + assert (len(self.utxo) > 0) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + + # Let's construct a witness program + witness_program = CScript([OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, scriptPubKey)) + tx.rehash() + + # tx2 will spend tx1, and send back to a regular anyone-can-spend address + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b"")) + tx2.vout.append(CTxOut(tx.vout[0].nValue-1000, witness_program)) + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[0].scriptWitness.stack = [witness_program] + tx2.rehash() + + block_3 = self.build_next_block() + self.update_witness_block_with_transactions(block_3, [tx, tx2], nonce=1) + # Add an extra OP_RETURN output that matches the witness commitment template, + # even though it has extra data after the incorrect commitment. + # This block should fail. + block_3.vtx[0].vout.append(CTxOut(0, CScript([OP_RETURN, WITNESS_COMMITMENT_HEADER + ser_uint256(2), 10]))) + block_3.vtx[0].rehash() + block_3.hashMerkleRoot = block_3.calc_merkle_root() + block_3.rehash() + block_3.solve() + + self.test_node.test_witness_block(block_3, accepted=False) + + # Add a different commitment with different nonce, but in the + # right location, and with some funds burned(!). + # This should succeed (nValue shouldn't affect finding the + # witness commitment). + add_witness_commitment(block_3, nonce=0) + block_3.vtx[0].vout[0].nValue -= 1 + block_3.vtx[0].vout[-1].nValue += 1 + block_3.vtx[0].rehash() + block_3.hashMerkleRoot = block_3.calc_merkle_root() + block_3.rehash() + assert(len(block_3.vtx[0].vout) == 4) # 3 OP_returns + block_3.solve() + self.test_node.test_witness_block(block_3, accepted=True) + + # Finally test that a block with no witness transactions can + # omit the commitment. + block_4 = self.build_next_block() + tx3 = CTransaction() + tx3.vin.append(CTxIn(COutPoint(tx2.sha256, 0), b"")) + tx3.vout.append(CTxOut(tx.vout[0].nValue-1000, witness_program)) + tx3.rehash() + block_4.vtx.append(tx3) + block_4.hashMerkleRoot = block_4.calc_merkle_root() + block_4.solve() + self.test_node.test_witness_block(block_4, with_witness=False, accepted=True) + + # Update available utxo's for use in later test. + self.utxo.pop(0) + self.utxo.append(UTXO(tx3.sha256, 0, tx3.vout[0].nValue)) + + + def test_block_malleability(self): + print("\tTesting witness block malleability") + + # Make sure that a block that has too big a virtual size + # because of a too-large coinbase witness is not permanently + # marked bad. + block = self.build_next_block() + add_witness_commitment(block) + block.solve() + + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack.append(b'a'*5000000) + assert(get_virtual_size(block) > MAX_BLOCK_SIZE) + + # We can't send over the p2p network, because this is too big to relay + # TODO: repeat this test with a block that can be relayed + self.nodes[0].submitblock(bytes_to_hex_str(block.serialize(True))) + + assert(self.nodes[0].getbestblockhash() != block.hash) + + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack.pop() + assert(get_virtual_size(block) < MAX_BLOCK_SIZE) + self.nodes[0].submitblock(bytes_to_hex_str(block.serialize(True))) + + assert(self.nodes[0].getbestblockhash() == block.hash) + + # Now make sure that malleating the witness nonce doesn't + # result in a block permanently marked bad. + block = self.build_next_block() + add_witness_commitment(block) + block.solve() + + # Change the nonce -- should not cause the block to be permanently + # failed + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ ser_uint256(1) ] + self.test_node.test_witness_block(block, accepted=False) + + # Changing the witness nonce doesn't change the block hash + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ ser_uint256(0) ] + self.test_node.test_witness_block(block, accepted=True) + + + def test_witness_block_size(self): + print("\tTesting witness block size limit") + # TODO: Test that non-witness carrying blocks can't exceed 1MB + # Skipping this test for now; this is covered in p2p-fullblocktest.py + + # Test that witness-bearing blocks are limited at ceil(base + wit/4) <= 1MB. + block = self.build_next_block() + + assert(len(self.utxo) > 0) + + # Create a P2WSH transaction. + # The witness program will be a bunch of OP_2DROP's, followed by OP_TRUE. + # This should give us plenty of room to tweak the spending tx's + # virtual size. + NUM_DROPS = 200 # 201 max ops per script! + NUM_OUTPUTS = 50 + + witness_program = CScript([OP_2DROP]*NUM_DROPS + [OP_TRUE]) + witness_hash = uint256_from_str(sha256(witness_program)) + scriptPubKey = CScript([OP_0, ser_uint256(witness_hash)]) + + prevout = COutPoint(self.utxo[0].sha256, self.utxo[0].n) + value = self.utxo[0].nValue + + parent_tx = CTransaction() + parent_tx.vin.append(CTxIn(prevout, b"")) + child_value = int(value/NUM_OUTPUTS) + for i in range(NUM_OUTPUTS): + parent_tx.vout.append(CTxOut(child_value, scriptPubKey)) + parent_tx.vout[0].nValue -= 50000 + assert(parent_tx.vout[0].nValue > 0) + parent_tx.rehash() + + child_tx = CTransaction() + for i in range(NUM_OUTPUTS): + child_tx.vin.append(CTxIn(COutPoint(parent_tx.sha256, i), b"")) + child_tx.vout = [CTxOut(value - 100000, CScript([OP_TRUE]))] + for i in range(NUM_OUTPUTS): + child_tx.wit.vtxinwit.append(CTxinWitness()) + child_tx.wit.vtxinwit[-1].scriptWitness.stack = [b'a'*195]*(2*NUM_DROPS) + [witness_program] + child_tx.rehash() + self.update_witness_block_with_transactions(block, [parent_tx, child_tx]) + + vsize = get_virtual_size(block) + additional_bytes = (MAX_BLOCK_SIZE - vsize)*4 + i = 0 + while additional_bytes > 0: + # Add some more bytes to each input until we hit MAX_BLOCK_SIZE+1 + extra_bytes = min(additional_bytes+1, 55) + block.vtx[-1].wit.vtxinwit[int(i/(2*NUM_DROPS))].scriptWitness.stack[i%(2*NUM_DROPS)] = b'a'*(195+extra_bytes) + additional_bytes -= extra_bytes + i += 1 + + block.vtx[0].vout.pop() # Remove old commitment + add_witness_commitment(block) + block.solve() + vsize = get_virtual_size(block) + assert_equal(vsize, MAX_BLOCK_SIZE + 1) + # Make sure that our test case would exceed the old max-network-message + # limit + assert(len(block.serialize(True)) > 2*1024*1024) + + self.test_node.test_witness_block(block, accepted=False) + + # Now resize the second transaction to make the block fit. + cur_length = len(block.vtx[-1].wit.vtxinwit[0].scriptWitness.stack[0]) + block.vtx[-1].wit.vtxinwit[0].scriptWitness.stack[0] = b'a'*(cur_length-1) + block.vtx[0].vout.pop() + add_witness_commitment(block) + block.solve() + assert(get_virtual_size(block) == MAX_BLOCK_SIZE) + + self.test_node.test_witness_block(block, accepted=True) + + # Update available utxo's + self.utxo.pop(0) + self.utxo.append(UTXO(block.vtx[-1].sha256, 0, block.vtx[-1].vout[0].nValue)) + + + # submitblock will try to add the nonce automatically, so that mining + # software doesn't need to worry about doing so itself. + def test_submit_block(self): + block = self.build_next_block() + + # Try using a custom nonce and then don't supply it. + # This shouldn't possibly work. + add_witness_commitment(block, nonce=1) + block.vtx[0].wit = CTxWitness() # drop the nonce + block.solve() + self.nodes[0].submitblock(bytes_to_hex_str(block.serialize(True))) + assert(self.nodes[0].getbestblockhash() != block.hash) + + # Now redo commitment with the standard nonce, but let bitcoind fill it in. + add_witness_commitment(block, nonce=0) + block.vtx[0].wit = CTxWitness() + block.solve() + self.nodes[0].submitblock(bytes_to_hex_str(block.serialize(True))) + assert_equal(self.nodes[0].getbestblockhash(), block.hash) + + # This time, add a tx with non-empty witness, but don't supply + # the commitment. + block_2 = self.build_next_block() + + add_witness_commitment(block_2) + + block_2.solve() + + # Drop commitment and nonce -- submitblock should not fill in. + block_2.vtx[0].vout.pop() + block_2.vtx[0].wit = CTxWitness() + + self.nodes[0].submitblock(bytes_to_hex_str(block_2.serialize(True))) + # Tip should not advance! + assert(self.nodes[0].getbestblockhash() != block_2.hash) + + + # Consensus tests of extra witness data in a transaction. + def test_extra_witness_data(self): + print("\tTesting extra witness data in tx") + + assert(len(self.utxo) > 0) + + block = self.build_next_block() + + witness_program = CScript([OP_DROP, OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + # First try extra witness data on a tx that doesn't require a witness + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-2000, scriptPubKey)) + tx.vout.append(CTxOut(1000, CScript([OP_TRUE]))) # non-witness output + tx.wit.vtxinwit.append(CTxinWitness()) + tx.wit.vtxinwit[0].scriptWitness.stack = [CScript([])] + tx.rehash() + self.update_witness_block_with_transactions(block, [tx]) + + # Extra witness data should not be allowed. + self.test_node.test_witness_block(block, accepted=False) + + # Try extra signature data. Ok if we're not spending a witness output. + block.vtx[1].wit.vtxinwit = [] + block.vtx[1].vin[0].scriptSig = CScript([OP_0]) + block.vtx[1].rehash() + add_witness_commitment(block) + block.solve() + + self.test_node.test_witness_block(block, accepted=True) + + # Now try extra witness/signature data on an input that DOES require a + # witness + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b"")) # witness output + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 1), b"")) # non-witness + tx2.vout.append(CTxOut(tx.vout[0].nValue, CScript([OP_TRUE]))) + tx2.wit.vtxinwit.extend([CTxinWitness(), CTxinWitness()]) + tx2.wit.vtxinwit[0].scriptWitness.stack = [ CScript([CScriptNum(1)]), CScript([CScriptNum(1)]), witness_program ] + tx2.wit.vtxinwit[1].scriptWitness.stack = [ CScript([OP_TRUE]) ] + + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx2]) + + # This has extra witness data, so it should fail. + self.test_node.test_witness_block(block, accepted=False) + + # Now get rid of the extra witness, but add extra scriptSig data + tx2.vin[0].scriptSig = CScript([OP_TRUE]) + tx2.vin[1].scriptSig = CScript([OP_TRUE]) + tx2.wit.vtxinwit[0].scriptWitness.stack.pop(0) + tx2.wit.vtxinwit[1].scriptWitness.stack = [] + tx2.rehash() + add_witness_commitment(block) + block.solve() + + # This has extra signature data for a witness input, so it should fail. + self.test_node.test_witness_block(block, accepted=False) + + # Now get rid of the extra scriptsig on the witness input, and verify + # success (even with extra scriptsig data in the non-witness input) + tx2.vin[0].scriptSig = b"" + tx2.rehash() + add_witness_commitment(block) + block.solve() + + self.test_node.test_witness_block(block, accepted=True) + + # Update utxo for later tests + self.utxo.pop(0) + self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue)) + + + def test_max_witness_push_length(self): + ''' Should only allow up to 520 byte pushes in witness stack ''' + print("\tTesting maximum witness push size") + MAX_SCRIPT_ELEMENT_SIZE = 520 + assert(len(self.utxo)) + + block = self.build_next_block() + + witness_program = CScript([OP_DROP, OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, scriptPubKey)) + tx.rehash() + + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b"")) + tx2.vout.append(CTxOut(tx.vout[0].nValue-1000, CScript([OP_TRUE]))) + tx2.wit.vtxinwit.append(CTxinWitness()) + # First try a 521-byte stack element + tx2.wit.vtxinwit[0].scriptWitness.stack = [ b'a'*(MAX_SCRIPT_ELEMENT_SIZE+1), witness_program ] + tx2.rehash() + + self.update_witness_block_with_transactions(block, [tx, tx2]) + self.test_node.test_witness_block(block, accepted=False) + + # Now reduce the length of the stack element + tx2.wit.vtxinwit[0].scriptWitness.stack[0] = b'a'*(MAX_SCRIPT_ELEMENT_SIZE) + + add_witness_commitment(block) + block.solve() + self.test_node.test_witness_block(block, accepted=True) + + # Update the utxo for later tests + self.utxo.pop() + self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue)) + + def test_max_witness_program_length(self): + # Can create witness outputs that are long, but can't be greater than + # 10k bytes to successfully spend + print("\tTesting maximum witness program length") + assert(len(self.utxo)) + MAX_PROGRAM_LENGTH = 10000 + + # This program is 19 max pushes (9937 bytes), then 64 more opcode-bytes. + long_witness_program = CScript([b'a'*520]*19 + [OP_DROP]*63 + [OP_TRUE]) + assert(len(long_witness_program) == MAX_PROGRAM_LENGTH+1) + long_witness_hash = sha256(long_witness_program) + long_scriptPubKey = CScript([OP_0, long_witness_hash]) + + block = self.build_next_block() + + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, long_scriptPubKey)) + tx.rehash() + + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b"")) + tx2.vout.append(CTxOut(tx.vout[0].nValue-1000, CScript([OP_TRUE]))) + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[0].scriptWitness.stack = [b'a']*44 + [long_witness_program] + tx2.rehash() + + self.update_witness_block_with_transactions(block, [tx, tx2]) + + self.test_node.test_witness_block(block, accepted=False) + + # Try again with one less byte in the witness program + witness_program = CScript([b'a'*520]*19 + [OP_DROP]*62 + [OP_TRUE]) + assert(len(witness_program) == MAX_PROGRAM_LENGTH) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + tx.vout[0] = CTxOut(tx.vout[0].nValue, scriptPubKey) + tx.rehash() + tx2.vin[0].prevout.hash = tx.sha256 + tx2.wit.vtxinwit[0].scriptWitness.stack = [b'a']*43 + [witness_program] + tx2.rehash() + block.vtx = [block.vtx[0]] + self.update_witness_block_with_transactions(block, [tx, tx2]) + self.test_node.test_witness_block(block, accepted=True) + + self.utxo.pop() + self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue)) + + + def test_witness_input_length(self): + ''' Ensure that vin length must match vtxinwit length ''' + print("\tTesting witness input length") + assert(len(self.utxo)) + + witness_program = CScript([OP_DROP, OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + # Create a transaction that splits our utxo into many outputs + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + nValue = self.utxo[0].nValue + for i in range(10): + tx.vout.append(CTxOut(int(nValue/10), scriptPubKey)) + tx.vout[0].nValue -= 1000 + assert(tx.vout[0].nValue >= 0) + + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + + # Try various ways to spend tx that should all break. + # This "broken" transaction serializer will not normalize + # the length of vtxinwit. + class BrokenCTransaction(CTransaction): + def serialize_with_witness(self): + flags = 0 + if not self.wit.is_null(): + flags |= 1 + r = b"" + r += struct.pack("<i", self.nVersion) + if flags: + dummy = [] + r += ser_vector(dummy) + r += struct.pack("<B", flags) + r += ser_vector(self.vin) + r += ser_vector(self.vout) + if flags & 1: + r += self.wit.serialize() + r += struct.pack("<I", self.nLockTime) + return r + + tx2 = BrokenCTransaction() + for i in range(10): + tx2.vin.append(CTxIn(COutPoint(tx.sha256, i), b"")) + tx2.vout.append(CTxOut(nValue-3000, CScript([OP_TRUE]))) + + # First try using a too long vtxinwit + for i in range(11): + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[i].scriptWitness.stack = [b'a', witness_program] + + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx2]) + self.test_node.test_witness_block(block, accepted=False) + + # Now try using a too short vtxinwit + tx2.wit.vtxinwit.pop() + tx2.wit.vtxinwit.pop() + + block.vtx = [block.vtx[0]] + self.update_witness_block_with_transactions(block, [tx2]) + self.test_node.test_witness_block(block, accepted=False) + + # Now make one of the intermediate witnesses be incorrect + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[-1].scriptWitness.stack = [b'a', witness_program] + tx2.wit.vtxinwit[5].scriptWitness.stack = [ witness_program ] + + block.vtx = [block.vtx[0]] + self.update_witness_block_with_transactions(block, [tx2]) + self.test_node.test_witness_block(block, accepted=False) + + # Fix the broken witness and the block should be accepted. + tx2.wit.vtxinwit[5].scriptWitness.stack = [b'a', witness_program] + block.vtx = [block.vtx[0]] + self.update_witness_block_with_transactions(block, [tx2]) + self.test_node.test_witness_block(block, accepted=True) + + self.utxo.pop() + self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue)) + + + def test_witness_tx_relay_before_segwit_activation(self): + print("\tTesting relay of witness transactions") + # Generate a transaction that doesn't require a witness, but send it + # with a witness. Should be rejected for premature-witness, but should + # not be added to recently rejected list. + assert(len(self.utxo)) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, CScript([OP_TRUE]))) + tx.wit.vtxinwit.append(CTxinWitness()) + tx.wit.vtxinwit[0].scriptWitness.stack = [ b'a' ] + tx.rehash() + + tx_hash = tx.sha256 + tx_value = tx.vout[0].nValue + + # Verify that if a peer doesn't set nServices to include NODE_WITNESS, + # the getdata is just for the non-witness portion. + self.old_node.announce_tx_and_wait_for_getdata(tx) + assert(self.old_node.last_getdata.inv[0].type == 1) + + # Since we haven't delivered the tx yet, inv'ing the same tx from + # a witness transaction ought not result in a getdata. + try: + self.test_node.announce_tx_and_wait_for_getdata(tx, timeout=2) + print("Error: duplicate tx getdata!") + assert(False) + except AssertionError as e: + pass + + # Delivering this transaction with witness should fail (no matter who + # its from) + assert_equal(len(self.nodes[0].getrawmempool()), 0) + assert_equal(len(self.nodes[1].getrawmempool()), 0) + self.old_node.test_transaction_acceptance(tx, with_witness=True, accepted=False) + self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=False) + + # But eliminating the witness should fix it + self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True) + + # Verify that inv's to test_node come with getdata's for non-witness tx's + # Just tweak the transaction, announce it, and verify we get a getdata + # for a normal tx + tx.vout[0].scriptPubKey = CScript([OP_TRUE, OP_TRUE]) + tx.rehash() + self.test_node.announce_tx_and_wait_for_getdata(tx) + assert(self.test_node.last_getdata.inv[0].type == 1) + + # Cleanup: mine the first transaction and update utxo + self.nodes[0].generate(1) + assert_equal(len(self.nodes[0].getrawmempool()), 0) + + self.utxo.pop(0) + self.utxo.append(UTXO(tx_hash, 0, tx_value)) + + + # After segwit activates, verify that mempool: + # - rejects transactions with unnecessary/extra witnesses + # - accepts transactions with valid witnesses + # and that witness transactions are relayed to non-upgraded peers. + def test_tx_relay_after_segwit_activation(self): + print("\tTesting relay of witness transactions") + # Generate a transaction that doesn't require a witness, but send it + # with a witness. Should be rejected because we can't use a witness + # when spending a non-witness output. + assert(len(self.utxo)) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, CScript([OP_TRUE]))) + tx.wit.vtxinwit.append(CTxinWitness()) + tx.wit.vtxinwit[0].scriptWitness.stack = [ b'a' ] + tx.rehash() + + tx_hash = tx.sha256 + tx_value = tx.vout[0].nValue + + # Verify that unnecessary witnesses are rejected. + self.test_node.announce_tx_and_wait_for_getdata(tx) + assert_equal(len(self.nodes[0].getrawmempool()), 0) + self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=False) + + # Verify that removing the witness succeeds. + # Re-announcing won't result in a getdata for ~2.5 minutes, so just + # deliver the modified transaction. + self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True) + + # Now try to add extra witness data to a valid witness tx. + witness_program = CScript([OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx_hash, 0), b"")) + tx2.vout.append(CTxOut(tx.vout[0].nValue-1000, scriptPubKey)) + tx2.rehash() + + tx3 = CTransaction() + tx3.vin.append(CTxIn(COutPoint(tx2.sha256, 0), b"")) + tx3.vout.append(CTxOut(tx2.vout[0].nValue-1000, CScript([OP_TRUE]))) + tx3.wit.vtxinwit.append(CTxinWitness()) + tx3.wit.vtxinwit[0].scriptWitness.stack = [CScript([CScriptNum(1)]), witness_program ] + tx3.rehash() + + self.test_node.test_transaction_acceptance(tx2, with_witness=True, accepted=True) + self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=False) + + # Get rid of the extra witness, and verify acceptance. + tx3.wit.vtxinwit[0].scriptWitness.stack = [ witness_program ] + # Also check that old_node gets a tx announcement, even though this is + # a witness transaction. + self.old_node.wait_for_inv(CInv(1, tx2.sha256)) # wait until tx2 was inv'ed + self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=True) + self.old_node.wait_for_inv(CInv(1, tx3.sha256)) + + # Test that getrawtransaction returns correct witness information + # hash, size, vsize + raw_tx = self.nodes[0].getrawtransaction(tx3.hash, 1) + assert_equal(int(raw_tx["hash"], 16), tx3.calc_sha256(True)) + assert_equal(raw_tx["size"], len(tx3.serialize_with_witness())) + vsize = (len(tx3.serialize_with_witness()) + 3*len(tx3.serialize_without_witness()) + 3) / 4 + assert_equal(raw_tx["vsize"], vsize) + assert_equal(len(raw_tx["vin"][0]["txinwitness"]), 1) + assert_equal(raw_tx["vin"][0]["txinwitness"][0], hexlify(witness_program).decode('ascii')) + assert(vsize != raw_tx["size"]) + + # Cleanup: mine the transactions and update utxo for next test + self.nodes[0].generate(1) + assert_equal(len(self.nodes[0].getrawmempool()), 0) + + self.utxo.pop(0) + self.utxo.append(UTXO(tx3.sha256, 0, tx3.vout[0].nValue)) + + + # Test that block requests to NODE_WITNESS peer are with MSG_WITNESS_FLAG + # This is true regardless of segwit activation. + # Also test that we don't ask for blocks from unupgraded peers + def test_block_relay(self, segwit_activated): + print("\tTesting block relay") + + blocktype = 2|MSG_WITNESS_FLAG if segwit_activated else 2 + + # test_node has set NODE_WITNESS, so all getdata requests should be for + # witness blocks. + # Test announcing a block via inv results in a getdata, and that + # announcing a version 4 or random VB block with a header results in a getdata + block1 = self.build_next_block() + block1.solve() + + self.test_node.announce_block_and_wait_for_getdata(block1, use_header=False) + assert(self.test_node.last_getdata.inv[0].type == blocktype) + self.test_node.test_witness_block(block1, True) + + block2 = self.build_next_block(nVersion=4) + block2.solve() + + self.test_node.announce_block_and_wait_for_getdata(block2, use_header=True) + assert(self.test_node.last_getdata.inv[0].type == blocktype) + self.test_node.test_witness_block(block2, True) + + block3 = self.build_next_block(nVersion=(VB_TOP_BITS | (1<<15))) + block3.solve() + self.test_node.announce_block_and_wait_for_getdata(block3, use_header=True) + assert(self.test_node.last_getdata.inv[0].type == blocktype) + self.test_node.test_witness_block(block3, True) + + # Check that we can getdata for witness blocks or regular blocks, + # and the right thing happens. + if segwit_activated == False: + # Before activation, we should be able to request old blocks with + # or without witness, and they should be the same. + chain_height = self.nodes[0].getblockcount() + # Pick 10 random blocks on main chain, and verify that getdata's + # for MSG_BLOCK, MSG_WITNESS_BLOCK, and rpc getblock() are equal. + all_heights = list(range(chain_height+1)) + random.shuffle(all_heights) + all_heights = all_heights[0:10] + for height in all_heights: + block_hash = self.nodes[0].getblockhash(height) + rpc_block = self.nodes[0].getblock(block_hash, False) + block_hash = int(block_hash, 16) + block = self.test_node.request_block(block_hash, 2) + wit_block = self.test_node.request_block(block_hash, 2|MSG_WITNESS_FLAG) + assert_equal(block.serialize(True), wit_block.serialize(True)) + assert_equal(block.serialize(), hex_str_to_bytes(rpc_block)) + else: + # After activation, witness blocks and non-witness blocks should + # be different. Verify rpc getblock() returns witness blocks, while + # getdata respects the requested type. + block = self.build_next_block() + self.update_witness_block_with_transactions(block, []) + # This gives us a witness commitment. + assert(len(block.vtx[0].wit.vtxinwit) == 1) + assert(len(block.vtx[0].wit.vtxinwit[0].scriptWitness.stack) == 1) + self.test_node.test_witness_block(block, accepted=True) + # Now try to retrieve it... + rpc_block = self.nodes[0].getblock(block.hash, False) + non_wit_block = self.test_node.request_block(block.sha256, 2) + wit_block = self.test_node.request_block(block.sha256, 2|MSG_WITNESS_FLAG) + assert_equal(wit_block.serialize(True), hex_str_to_bytes(rpc_block)) + assert_equal(wit_block.serialize(False), non_wit_block.serialize()) + assert_equal(wit_block.serialize(True), block.serialize(True)) + + # Test size, vsize, cost + rpc_details = self.nodes[0].getblock(block.hash, True) + assert_equal(rpc_details["size"], len(block.serialize(True))) + assert_equal(rpc_details["strippedsize"], len(block.serialize(False))) + cost = 3*len(block.serialize(False)) + len(block.serialize(True)) + assert_equal(rpc_details["cost"], cost) + + # Upgraded node should not ask for blocks from unupgraded + block4 = self.build_next_block(nVersion=4) + block4.solve() + self.old_node.getdataset = set() + # Blocks can be requested via direct-fetch (immediately upon processing the announcement) + # or via parallel download (with an indeterminate delay from processing the announcement) + # so to test that a block is NOT requested, we could guess a time period to sleep for, + # and then check. We can avoid the sleep() by taking advantage of transaction getdata's + # being processed after block getdata's, and announce a transaction as well, + # and then check to see if that particular getdata has been received. + self.old_node.announce_block(block4, use_header=False) + self.old_node.announce_tx_and_wait_for_getdata(block4.vtx[0]) + assert(block4.sha256 not in self.old_node.getdataset) + + # Verify that future segwit upgraded transactions are non-standard, + # but valid in blocks. Can run this before and after segwit activation. + def test_segwit_versions(self): + print("\tTesting standardness/consensus for segwit versions (0-16)") + assert(len(self.utxo)) + NUM_TESTS = 17 # will test OP_0, OP1, ..., OP_16 + if (len(self.utxo) < NUM_TESTS): + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + split_value = (self.utxo[0].nValue - 4000) // NUM_TESTS + for i in range(NUM_TESTS): + tx.vout.append(CTxOut(split_value, CScript([OP_TRUE]))) + tx.rehash() + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + self.utxo.pop(0) + for i in range(NUM_TESTS): + self.utxo.append(UTXO(tx.sha256, i, split_value)) + + sync_blocks(self.nodes) + temp_utxo = [] + tx = CTransaction() + count = 0 + witness_program = CScript([OP_TRUE]) + witness_hash = sha256(witness_program) + assert_equal(len(self.nodes[1].getrawmempool()), 0) + for version in list(range(OP_1, OP_16+1)) + [OP_0]: + count += 1 + # First try to spend to a future version segwit scriptPubKey. + scriptPubKey = CScript([CScriptOp(version), witness_hash]) + tx.vin = [CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")] + tx.vout = [CTxOut(self.utxo[0].nValue-1000, scriptPubKey)] + tx.rehash() + self.std_node.test_transaction_acceptance(tx, with_witness=True, accepted=False) + self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=True) + self.utxo.pop(0) + temp_utxo.append(UTXO(tx.sha256, 0, tx.vout[0].nValue)) + + self.nodes[0].generate(1) # Mine all the transactions + sync_blocks(self.nodes) + assert(len(self.nodes[0].getrawmempool()) == 0) + + # Finally, verify that version 0 -> version 1 transactions + # are non-standard + scriptPubKey = CScript([CScriptOp(OP_1), witness_hash]) + tx2 = CTransaction() + tx2.vin = [CTxIn(COutPoint(tx.sha256, 0), b"")] + tx2.vout = [CTxOut(tx.vout[0].nValue-1000, scriptPubKey)] + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[0].scriptWitness.stack = [ witness_program ] + tx2.rehash() + # Gets accepted to test_node, because standardness of outputs isn't + # checked with fRequireStandard + self.test_node.test_transaction_acceptance(tx2, with_witness=True, accepted=True) + self.std_node.test_transaction_acceptance(tx2, with_witness=True, accepted=False) + temp_utxo.pop() # last entry in temp_utxo was the output we just spent + temp_utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue)) + + # Spend everything in temp_utxo back to an OP_TRUE output. + tx3 = CTransaction() + total_value = 0 + for i in temp_utxo: + tx3.vin.append(CTxIn(COutPoint(i.sha256, i.n), b"")) + tx3.wit.vtxinwit.append(CTxinWitness()) + total_value += i.nValue + tx3.wit.vtxinwit[-1].scriptWitness.stack = [witness_program] + tx3.vout.append(CTxOut(total_value - 1000, CScript([OP_TRUE]))) + tx3.rehash() + # Spending a higher version witness output is not allowed by policy, + # even with fRequireStandard=false. + self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=False) + self.test_node.sync_with_ping() + with mininode_lock: + assert(b"reserved for soft-fork upgrades" in self.test_node.last_reject.reason) + + # Building a block with the transaction must be valid, however. + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx2, tx3]) + self.test_node.test_witness_block(block, accepted=True) + sync_blocks(self.nodes) + + # Add utxo to our list + self.utxo.append(UTXO(tx3.sha256, 0, tx3.vout[0].nValue)) + + + def test_premature_coinbase_witness_spend(self): + print("\tTesting premature coinbase witness spend") + block = self.build_next_block() + # Change the output of the block to be a witness output. + witness_program = CScript([OP_TRUE]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + block.vtx[0].vout[0].scriptPubKey = scriptPubKey + # This next line will rehash the coinbase and update the merkle + # root, and solve. + self.update_witness_block_with_transactions(block, []) + self.test_node.test_witness_block(block, accepted=True) + + spend_tx = CTransaction() + spend_tx.vin = [CTxIn(COutPoint(block.vtx[0].sha256, 0), b"")] + spend_tx.vout = [CTxOut(block.vtx[0].vout[0].nValue, witness_program)] + spend_tx.wit.vtxinwit.append(CTxinWitness()) + spend_tx.wit.vtxinwit[0].scriptWitness.stack = [ witness_program ] + spend_tx.rehash() + + # Now test a premature spend. + self.nodes[0].generate(98) + sync_blocks(self.nodes) + block2 = self.build_next_block() + self.update_witness_block_with_transactions(block2, [spend_tx]) + self.test_node.test_witness_block(block2, accepted=False) + + # Advancing one more block should allow the spend. + self.nodes[0].generate(1) + block2 = self.build_next_block() + self.update_witness_block_with_transactions(block2, [spend_tx]) + self.test_node.test_witness_block(block2, accepted=True) + sync_blocks(self.nodes) + + + def test_signature_version_1(self): + print("\tTesting segwit signature hash version 1") + key = CECKey() + key.set_secretbytes(b"9") + pubkey = CPubKey(key.get_pubkey()) + + witness_program = CScript([pubkey, CScriptOp(OP_CHECKSIG)]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + # First create a witness output for use in the tests. + assert(len(self.utxo)) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, scriptPubKey)) + tx.rehash() + + self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=True) + # Mine this transaction in preparation for following tests. + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + sync_blocks(self.nodes) + self.utxo.pop(0) + + # Add signature for a P2PK witness program. + def sign_P2PK_witness_input(script, txTo, inIdx, hashtype, value, key): + tx_hash = SegwitVersion1SignatureHash(script, txTo, inIdx, hashtype, value) + signature = key.sign(tx_hash) + chr(hashtype).encode('latin-1') + txTo.wit.vtxinwit[inIdx].scriptWitness.stack = [signature, script] + txTo.rehash() + + # Test each hashtype + prev_utxo = UTXO(tx.sha256, 0, tx.vout[0].nValue) + for sigflag in [ 0, SIGHASH_ANYONECANPAY ]: + for hashtype in [SIGHASH_ALL, SIGHASH_NONE, SIGHASH_SINGLE]: + hashtype |= sigflag + block = self.build_next_block() + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(prev_utxo.sha256, prev_utxo.n), b"")) + tx.vout.append(CTxOut(prev_utxo.nValue - 1000, scriptPubKey)) + tx.wit.vtxinwit.append(CTxinWitness()) + # Too-large input value + sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue+1, key) + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=False) + + # Too-small input value + sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue-1, key) + block.vtx.pop() # remove last tx + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=False) + + # Now try correct value + sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue, key) + block.vtx.pop() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + + prev_utxo = UTXO(tx.sha256, 0, tx.vout[0].nValue) + + # Test combinations of signature hashes. + # Split the utxo into a lot of outputs. + # Randomly choose up to 10 to spend, sign with different hashtypes, and + # output to a random number of outputs. Repeat NUM_TESTS times. + # Ensure that we've tested a situation where we use SIGHASH_SINGLE with + # an input index > number of outputs. + NUM_TESTS = 500 + temp_utxos = [] + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(prev_utxo.sha256, prev_utxo.n), b"")) + split_value = prev_utxo.nValue // NUM_TESTS + for i in range(NUM_TESTS): + tx.vout.append(CTxOut(split_value, scriptPubKey)) + tx.wit.vtxinwit.append(CTxinWitness()) + sign_P2PK_witness_input(witness_program, tx, 0, SIGHASH_ALL, prev_utxo.nValue, key) + for i in range(NUM_TESTS): + temp_utxos.append(UTXO(tx.sha256, i, split_value)) + + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + + block = self.build_next_block() + used_sighash_single_out_of_bounds = False + for i in range(NUM_TESTS): + # Choose random number of inputs to use. + num_inputs = random.randint(1, 10) + # Create a slight bias for producing more utxos + num_outputs = random.randint(1, 11) + random.shuffle(temp_utxos) + assert(len(temp_utxos) > num_inputs) + tx = CTransaction() + total_value = 0 + for i in range(num_inputs): + tx.vin.append(CTxIn(COutPoint(temp_utxos[i].sha256, temp_utxos[i].n), b"")) + tx.wit.vtxinwit.append(CTxinWitness()) + total_value += temp_utxos[i].nValue + split_value = total_value // num_outputs + for i in range(num_outputs): + tx.vout.append(CTxOut(split_value, scriptPubKey)) + for i in range(num_inputs): + # Now try to sign each input, using a random hashtype. + anyonecanpay = 0 + if random.randint(0, 1): + anyonecanpay = SIGHASH_ANYONECANPAY + hashtype = random.randint(1, 3) | anyonecanpay + sign_P2PK_witness_input(witness_program, tx, i, hashtype, temp_utxos[i].nValue, key) + if (hashtype == SIGHASH_SINGLE and i >= num_outputs): + used_sighash_single_out_of_bounds = True + tx.rehash() + for i in range(num_outputs): + temp_utxos.append(UTXO(tx.sha256, i, split_value)) + temp_utxos = temp_utxos[num_inputs:] + + block.vtx.append(tx) + + # Test the block periodically, if we're close to maxblocksize + if (get_virtual_size(block) > MAX_BLOCK_SIZE - 1000): + self.update_witness_block_with_transactions(block, []) + self.test_node.test_witness_block(block, accepted=True) + block = self.build_next_block() + + if (not used_sighash_single_out_of_bounds): + print("WARNING: this test run didn't attempt SIGHASH_SINGLE with out-of-bounds index value") + # Test the transactions we've added to the block + if (len(block.vtx) > 1): + self.update_witness_block_with_transactions(block, []) + self.test_node.test_witness_block(block, accepted=True) + + # Now test witness version 0 P2PKH transactions + pubkeyhash = hash160(pubkey) + scriptPKH = CScript([OP_0, pubkeyhash]) + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(temp_utxos[0].sha256, temp_utxos[0].n), b"")) + tx.vout.append(CTxOut(temp_utxos[0].nValue, scriptPKH)) + tx.wit.vtxinwit.append(CTxinWitness()) + sign_P2PK_witness_input(witness_program, tx, 0, SIGHASH_ALL, temp_utxos[0].nValue, key) + tx2 = CTransaction() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b"")) + tx2.vout.append(CTxOut(tx.vout[0].nValue, CScript([OP_TRUE]))) + + script = CScript([CScriptOp(OP_DUP), CScriptOp(OP_HASH160), pubkeyhash, CScriptOp(OP_EQUALVERIFY), CScriptOp(OP_CHECKSIG)]) + sig_hash = SegwitVersion1SignatureHash(script, tx2, 0, SIGHASH_ALL, tx.vout[0].nValue) + signature = key.sign(sig_hash) + b'\x01' # 0x1 is SIGHASH_ALL + + # Check that we can't have a scriptSig + tx2.vin[0].scriptSig = CScript([signature, pubkey]) + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx, tx2]) + self.test_node.test_witness_block(block, accepted=False) + + # Move the signature to the witness. + block.vtx.pop() + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[0].scriptWitness.stack = [signature, pubkey] + tx2.vin[0].scriptSig = b"" + tx2.rehash() + + self.update_witness_block_with_transactions(block, [tx2]) + self.test_node.test_witness_block(block, accepted=True) + + temp_utxos.pop(0) + + # Update self.utxos for later tests. Just spend everything in + # temp_utxos to a corresponding entry in self.utxos + tx = CTransaction() + index = 0 + for i in temp_utxos: + # Just spend to our usual anyone-can-spend output + # Use SIGHASH_SINGLE|SIGHASH_ANYONECANPAY so we can build up + # the signatures as we go. + tx.vin.append(CTxIn(COutPoint(i.sha256, i.n), b"")) + tx.vout.append(CTxOut(i.nValue, CScript([OP_TRUE]))) + tx.wit.vtxinwit.append(CTxinWitness()) + sign_P2PK_witness_input(witness_program, tx, index, SIGHASH_SINGLE|SIGHASH_ANYONECANPAY, i.nValue, key) + index += 1 + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True) + + for i in range(len(tx.vout)): + self.utxo.append(UTXO(tx.sha256, i, tx.vout[i].nValue)) + + + # Test P2SH wrapped witness programs. + def test_p2sh_witness(self, segwit_activated): + print("\tTesting P2SH witness transactions") + + assert(len(self.utxo)) + + # Prepare the p2sh-wrapped witness output + witness_program = CScript([OP_DROP, OP_TRUE]) + witness_hash = sha256(witness_program) + p2wsh_pubkey = CScript([OP_0, witness_hash]) + p2sh_witness_hash = hash160(p2wsh_pubkey) + scriptPubKey = CScript([OP_HASH160, p2sh_witness_hash, OP_EQUAL]) + scriptSig = CScript([p2wsh_pubkey]) # a push of the redeem script + + # Fund the P2SH output + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + tx.vout.append(CTxOut(self.utxo[0].nValue-1000, scriptPubKey)) + tx.rehash() + + # Verify mempool acceptance and block validity + self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True) + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [tx]) + self.test_node.test_witness_block(block, accepted=True, with_witness=segwit_activated) + sync_blocks(self.nodes) + + # Now test attempts to spend the output. + spend_tx = CTransaction() + spend_tx.vin.append(CTxIn(COutPoint(tx.sha256, 0), scriptSig)) + spend_tx.vout.append(CTxOut(tx.vout[0].nValue-1000, CScript([OP_TRUE]))) + spend_tx.rehash() + + # This transaction should not be accepted into the mempool pre- or + # post-segwit. Mempool acceptance will use SCRIPT_VERIFY_WITNESS which + # will require a witness to spend a witness program regardless of + # segwit activation. Note that older bitcoind's that are not + # segwit-aware would also reject this for failing CLEANSTACK. + self.test_node.test_transaction_acceptance(spend_tx, with_witness=False, accepted=False) + + # Try to put the witness script in the scriptSig, should also fail. + spend_tx.vin[0].scriptSig = CScript([p2wsh_pubkey, b'a']) + spend_tx.rehash() + self.test_node.test_transaction_acceptance(spend_tx, with_witness=False, accepted=False) + + # Now put the witness script in the witness, should succeed after + # segwit activates. + spend_tx.vin[0].scriptSig = scriptSig + spend_tx.rehash() + spend_tx.wit.vtxinwit.append(CTxinWitness()) + spend_tx.wit.vtxinwit[0].scriptWitness.stack = [ b'a', witness_program ] + + # Verify mempool acceptance + self.test_node.test_transaction_acceptance(spend_tx, with_witness=True, accepted=segwit_activated) + block = self.build_next_block() + self.update_witness_block_with_transactions(block, [spend_tx]) + + # If we're before activation, then sending this without witnesses + # should be valid. If we're after activation, then sending this with + # witnesses should be valid. + if segwit_activated: + self.test_node.test_witness_block(block, accepted=True) + else: + self.test_node.test_witness_block(block, accepted=True, with_witness=False) + + # Update self.utxo + self.utxo.pop(0) + self.utxo.append(UTXO(spend_tx.sha256, 0, spend_tx.vout[0].nValue)) + + # Test the behavior of starting up a segwit-aware node after the softfork + # has activated. As segwit requires different block data than pre-segwit + # nodes would have stored, this requires special handling. + # To enable this test, pass --oldbinary=<path-to-pre-segwit-bitcoind> to + # the test. + def test_upgrade_after_activation(self, node, node_id): + print("\tTesting software upgrade after softfork activation") + + assert(node_id != 0) # node0 is assumed to be a segwit-active bitcoind + + # Make sure the nodes are all up + sync_blocks(self.nodes) + + # Restart with the new binary + stop_node(node, node_id) + self.nodes[node_id] = start_node(node_id, self.options.tmpdir, ["-debug"]) + connect_nodes(self.nodes[0], node_id) + + sync_blocks(self.nodes) + + # Make sure that this peer thinks segwit has activated. + assert(get_bip9_status(node, 'segwit')['status'] == "active") + + # Make sure this peers blocks match those of node0. + height = node.getblockcount() + while height >= 0: + block_hash = node.getblockhash(height) + assert_equal(block_hash, self.nodes[0].getblockhash(height)) + assert_equal(self.nodes[0].getblock(block_hash), node.getblock(block_hash)) + height -= 1 + + + def test_witness_sigops(self): + '''Ensure sigop counting is correct inside witnesses.''' + print("\tTesting sigops limit") + + assert(len(self.utxo)) + + # Keep this under MAX_OPS_PER_SCRIPT (201) + witness_program = CScript([OP_TRUE, OP_IF, OP_TRUE, OP_ELSE] + [OP_CHECKMULTISIG]*5 + [OP_CHECKSIG]*193 + [OP_ENDIF]) + witness_hash = sha256(witness_program) + scriptPubKey = CScript([OP_0, witness_hash]) + + sigops_per_script = 20*5 + 193*1 + # We'll produce 2 extra outputs, one with a program that would take us + # over max sig ops, and one with a program that would exactly reach max + # sig ops + outputs = (MAX_SIGOP_COST // sigops_per_script) + 2 + extra_sigops_available = MAX_SIGOP_COST % sigops_per_script + + # We chose the number of checkmultisigs/checksigs to make this work: + assert(extra_sigops_available < 100) # steer clear of MAX_OPS_PER_SCRIPT + + # This script, when spent with the first + # N(=MAX_SIGOP_COST//sigops_per_script) outputs of our transaction, + # would push us just over the block sigop limit. + witness_program_toomany = CScript([OP_TRUE, OP_IF, OP_TRUE, OP_ELSE] + [OP_CHECKSIG]*(extra_sigops_available + 1) + [OP_ENDIF]) + witness_hash_toomany = sha256(witness_program_toomany) + scriptPubKey_toomany = CScript([OP_0, witness_hash_toomany]) + + # If we spend this script instead, we would exactly reach our sigop + # limit (for witness sigops). + witness_program_justright = CScript([OP_TRUE, OP_IF, OP_TRUE, OP_ELSE] + [OP_CHECKSIG]*(extra_sigops_available) + [OP_ENDIF]) + witness_hash_justright = sha256(witness_program_justright) + scriptPubKey_justright = CScript([OP_0, witness_hash_justright]) + + # First split our available utxo into a bunch of outputs + split_value = self.utxo[0].nValue // outputs + tx = CTransaction() + tx.vin.append(CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")) + for i in range(outputs): + tx.vout.append(CTxOut(split_value, scriptPubKey)) + tx.vout[-2].scriptPubKey = scriptPubKey_toomany + tx.vout[-1].scriptPubKey = scriptPubKey_justright + tx.rehash() + + block_1 = self.build_next_block() + self.update_witness_block_with_transactions(block_1, [tx]) + self.test_node.test_witness_block(block_1, accepted=True) + + tx2 = CTransaction() + # If we try to spend the first n-1 outputs from tx, that should be + # too many sigops. + total_value = 0 + for i in range(outputs-1): + tx2.vin.append(CTxIn(COutPoint(tx.sha256, i), b"")) + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[-1].scriptWitness.stack = [ witness_program ] + total_value += tx.vout[i].nValue + tx2.wit.vtxinwit[-1].scriptWitness.stack = [ witness_program_toomany ] + tx2.vout.append(CTxOut(total_value, CScript([OP_TRUE]))) + tx2.rehash() + + block_2 = self.build_next_block() + self.update_witness_block_with_transactions(block_2, [tx2]) + self.test_node.test_witness_block(block_2, accepted=False) + + # Try dropping the last input in tx2, and add an output that has + # too many sigops (contributing to legacy sigop count). + checksig_count = (extra_sigops_available // 4) + 1 + scriptPubKey_checksigs = CScript([OP_CHECKSIG]*checksig_count) + tx2.vout.append(CTxOut(0, scriptPubKey_checksigs)); + tx2.vin.pop() + tx2.wit.vtxinwit.pop() + tx2.vout[0].nValue -= tx.vout[-2].nValue + tx2.rehash() + block_3 = self.build_next_block() + self.update_witness_block_with_transactions(block_3, [tx2]) + self.test_node.test_witness_block(block_3, accepted=False) + + # If we drop the last checksig in this output, the tx should succeed. + block_4 = self.build_next_block() + tx2.vout[-1].scriptPubKey = CScript([OP_CHECKSIG]*(checksig_count-1)) + tx2.rehash() + self.update_witness_block_with_transactions(block_4, [tx2]) + self.test_node.test_witness_block(block_4, accepted=True) + + # Reset the tip back down for the next test + sync_blocks(self.nodes) + for x in self.nodes: + x.invalidateblock(block_4.hash) + + # Try replacing the last input of tx2 to be spending the last + # output of tx + block_5 = self.build_next_block() + tx2.vout.pop() + tx2.vin.append(CTxIn(COutPoint(tx.sha256, outputs-1), b"")) + tx2.wit.vtxinwit.append(CTxinWitness()) + tx2.wit.vtxinwit[-1].scriptWitness.stack = [ witness_program_justright ] + tx2.rehash() + self.update_witness_block_with_transactions(block_5, [tx2]) + self.test_node.test_witness_block(block_5, accepted=True) + + # TODO: test p2sh sigop counting + + def test_getblocktemplate_before_lockin(self): + print("\tTesting getblocktemplate setting of segwit versionbit (before lockin)") + block_version = (self.nodes[0].getblocktemplate())['version'] + assert_equal(block_version & (1 << VB_WITNESS_BIT), 0) + + # Workaround: + # Can either change the tip, or change the mempool and wait 5 seconds + # to trigger a recomputation of getblocktemplate. + self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1) + # Using mocktime lets us avoid sleep() + self.nodes[0].setmocktime(int(time.time())+10) + + block_version = self.nodes[0].getblocktemplate({"rules" : ["segwit"]})['version'] + assert(block_version & (1 << VB_WITNESS_BIT) != 0) + self.nodes[0].setmocktime(0) # undo mocktime + + def run_test(self): + # Setup the p2p connections and start up the network thread. + self.test_node = TestNode() # sets NODE_WITNESS|NODE_NETWORK + self.old_node = TestNode() # only NODE_NETWORK + self.std_node = TestNode() # for testing node1 (fRequireStandard=true) + + self.p2p_connections = [self.test_node, self.old_node] + + self.connections = [] + self.connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], self.test_node, services=NODE_NETWORK|NODE_WITNESS)) + self.connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], self.old_node, services=NODE_NETWORK)) + self.connections.append(NodeConn('127.0.0.1', p2p_port(1), self.nodes[1], self.std_node, services=NODE_NETWORK|NODE_WITNESS)) + self.test_node.add_connection(self.connections[0]) + self.old_node.add_connection(self.connections[1]) + self.std_node.add_connection(self.connections[2]) + + NetworkThread().start() # Start up network handling in another thread + + # Keep a place to store utxo's that can be used in later tests + self.utxo = [] + + # Test logic begins here + self.test_node.wait_for_verack() + + print("\nStarting tests before segwit lock in:") + + self.test_witness_services() # Verifies NODE_WITNESS + self.test_non_witness_transaction() # non-witness tx's are accepted + self.test_unnecessary_witness_before_segwit_activation() + self.test_block_relay(segwit_activated=False) + + # Advance to segwit being 'started' + self.advance_to_segwit_started() + self.test_getblocktemplate_before_lockin() + + sync_blocks(self.nodes) + + # At lockin, nothing should change. + print("\nTesting behavior post lockin, pre-activation") + self.advance_to_segwit_lockin() + + # Retest unnecessary witnesses + self.test_unnecessary_witness_before_segwit_activation() + self.test_witness_tx_relay_before_segwit_activation() + self.test_block_relay(segwit_activated=False) + self.test_p2sh_witness(segwit_activated=False) + + sync_blocks(self.nodes) + + # Now activate segwit + print("\nTesting behavior after segwit activation") + self.advance_to_segwit_active() + + sync_blocks(self.nodes) + + # Test P2SH witness handling again + self.test_p2sh_witness(segwit_activated=True) + self.test_witness_commitments() + self.test_block_malleability() + self.test_witness_block_size() + self.test_submit_block() + self.test_extra_witness_data() + self.test_max_witness_push_length() + self.test_max_witness_program_length() + self.test_witness_input_length() + self.test_block_relay(segwit_activated=True) + self.test_tx_relay_after_segwit_activation() + self.test_segwit_versions() + self.test_premature_coinbase_witness_spend() + self.test_signature_version_1() + sync_blocks(self.nodes) + if self.test_upgrade: + self.test_upgrade_after_activation(self.nodes[2], 2) + else: + print("\tSkipping upgrade-after-activation test (use --oldbinary to enable)") + self.test_witness_sigops() + + +if __name__ == '__main__': + SegWitTest().main() diff --git a/qa/rpc-tests/segwit.py b/qa/rpc-tests/segwit.py new file mode 100755 index 0000000000..d4c9a8afed --- /dev/null +++ b/qa/rpc-tests/segwit.py @@ -0,0 +1,209 @@ +#!/usr/bin/env python3 +# Copyright (c) 2016 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 the SegWit changeover logic +# + +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import * +from test_framework.mininode import sha256, ripemd160 +import os +import shutil + +NODE_0 = 0 +NODE_1 = 1 +NODE_2 = 2 +WIT_V0 = 0 +WIT_V1 = 1 + +def witness_script(version, pubkey): + if (version == 0): + pubkeyhash = bytes_to_hex_str(ripemd160(sha256(hex_str_to_bytes(pubkey)))) + pkscript = "0014" + pubkeyhash + elif (version == 1): + # 1-of-1 multisig + scripthash = bytes_to_hex_str(sha256(hex_str_to_bytes("5121" + pubkey + "51ae"))) + pkscript = "0020" + scripthash + else: + assert("Wrong version" == "0 or 1") + return pkscript + +def addlength(script): + scriptlen = format(len(script)//2, 'x') + assert(len(scriptlen) == 2) + return scriptlen + script + +def create_witnessprogram(version, node, utxo, pubkey, encode_p2sh, amount): + pkscript = witness_script(version, pubkey); + if (encode_p2sh): + p2sh_hash = bytes_to_hex_str(ripemd160(sha256(hex_str_to_bytes(pkscript)))) + pkscript = "a914"+p2sh_hash+"87" + inputs = [] + outputs = {} + inputs.append({ "txid" : utxo["txid"], "vout" : utxo["vout"]} ) + DUMMY_P2SH = "2MySexEGVzZpRgNQ1JdjdP5bRETznm3roQ2" # P2SH of "OP_1 OP_DROP" + outputs[DUMMY_P2SH] = amount + tx_to_witness = node.createrawtransaction(inputs,outputs) + #replace dummy output with our own + tx_to_witness = tx_to_witness[0:110] + addlength(pkscript) + tx_to_witness[-8:] + return tx_to_witness + +def send_to_witness(version, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""): + tx_to_witness = create_witnessprogram(version, node, utxo, pubkey, encode_p2sh, amount) + if (sign): + signed = node.signrawtransaction(tx_to_witness) + assert("errors" not in signed or len(["errors"]) == 0) + return node.sendrawtransaction(signed["hex"]) + else: + if (insert_redeem_script): + tx_to_witness = tx_to_witness[0:82] + addlength(insert_redeem_script) + tx_to_witness[84:] + + return node.sendrawtransaction(tx_to_witness) + +def getutxo(txid): + utxo = {} + utxo["vout"] = 0 + utxo["txid"] = txid + return utxo + +class SegWitTest(BitcoinTestFramework): + + def setup_chain(self): + print("Initializing test directory "+self.options.tmpdir) + initialize_chain_clean(self.options.tmpdir, 3) + + def setup_network(self): + self.nodes = [] + self.nodes.append(start_node(0, self.options.tmpdir, ["-logtimemicros", "-debug", "-walletprematurewitness"])) + self.nodes.append(start_node(1, self.options.tmpdir, ["-logtimemicros", "-debug", "-blockversion=4", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness"])) + self.nodes.append(start_node(2, self.options.tmpdir, ["-logtimemicros", "-debug", "-blockversion=536870915", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness"])) + connect_nodes(self.nodes[1], 0) + connect_nodes(self.nodes[2], 1) + connect_nodes(self.nodes[0], 2) + self.is_network_split = False + self.sync_all() + + def success_mine(self, node, txid, sign, redeem_script=""): + send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script) + block = node.generate(1) + assert_equal(len(node.getblock(block[0])["tx"]), 2) + sync_blocks(self.nodes) + + def skip_mine(self, node, txid, sign, redeem_script=""): + send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script) + block = node.generate(1) + assert_equal(len(node.getblock(block[0])["tx"]), 1) + sync_blocks(self.nodes) + + def fail_accept(self, node, txid, sign, redeem_script=""): + try: + send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script) + except JSONRPCException as exp: + assert(exp.error["code"] == -26) + else: + raise AssertionError("Tx should not have been accepted") + + def fail_mine(self, node, txid, sign, redeem_script=""): + send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script) + try: + node.generate(1) + except JSONRPCException as exp: + assert(exp.error["code"] == -1) + else: + raise AssertionError("Created valid block when TestBlockValidity should have failed") + sync_blocks(self.nodes) + + def run_test(self): + self.nodes[0].generate(160) #block 160 + + self.pubkey = [] + p2sh_ids = [] # p2sh_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE embedded in p2sh + wit_ids = [] # wit_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE via bare witness + for i in range(3): + newaddress = self.nodes[i].getnewaddress() + self.pubkey.append(self.nodes[i].validateaddress(newaddress)["pubkey"]) + multiaddress = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]]) + self.nodes[i].addwitnessaddress(newaddress) + self.nodes[i].addwitnessaddress(multiaddress) + p2sh_ids.append([]) + wit_ids.append([]) + for v in range(2): + p2sh_ids[i].append([]) + wit_ids[i].append([]) + + for i in range(5): + for n in range(3): + for v in range(2): + wit_ids[n][v].append(send_to_witness(v, self.nodes[0], self.nodes[0].listunspent()[0], self.pubkey[n], False, Decimal("49.999"))) + p2sh_ids[n][v].append(send_to_witness(v, self.nodes[0], self.nodes[0].listunspent()[0], self.pubkey[n], True, Decimal("49.999"))) + + self.nodes[0].generate(1) #block 161 + sync_blocks(self.nodes) + + # Make sure all nodes recognize the transactions as theirs + assert_equal(self.nodes[0].getbalance(), 60*50 - 60*50 + 20*Decimal("49.999") + 50) + assert_equal(self.nodes[1].getbalance(), 20*Decimal("49.999")) + assert_equal(self.nodes[2].getbalance(), 20*Decimal("49.999")) + + self.nodes[0].generate(262) #block 423 + sync_blocks(self.nodes) + + print("Verify default node can't accept any witness format txs before fork") + # unsigned, no scriptsig + self.fail_accept(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], False) + self.fail_accept(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], False) + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], False) + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], False) + # unsigned with redeem script + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], False, addlength(witness_script(0, self.pubkey[0]))) + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], False, addlength(witness_script(1, self.pubkey[0]))) + # signed + self.fail_accept(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True) + self.fail_accept(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True) + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True) + self.fail_accept(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True) + + print("Verify witness txs are skipped for mining before the fork") + self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][0], True) #block 424 + self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][0], True) #block 425 + self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][0], True) #block 426 + self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][0], True) #block 427 + + # TODO: An old node would see these txs without witnesses and be able to mine them + + print("Verify unsigned bare witness txs in versionbits-setting blocks are valid before the fork") + self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][1], False) #block 428 + self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][1], False) #block 429 + + print("Verify unsigned p2sh witness txs without a redeem script are invalid") + self.fail_accept(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][1], False) + self.fail_accept(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][1], False) + + print("Verify unsigned p2sh witness txs with a redeem script in versionbits-settings blocks are valid before the fork") + self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][1], False, addlength(witness_script(0, self.pubkey[2]))) #block 430 + self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][1], False, addlength(witness_script(1, self.pubkey[2]))) #block 431 + + print("Verify previous witness txs skipped for mining can now be mined") + assert_equal(len(self.nodes[2].getrawmempool()), 4) + block = self.nodes[2].generate(1) #block 432 (first block with new rules; 432 = 144 * 3) + sync_blocks(self.nodes) + assert_equal(len(self.nodes[2].getrawmempool()), 0) + assert_equal(len(self.nodes[2].getblock(block[0])["tx"]), 5) + + print("Verify witness txs without witness data are invalid after the fork") + self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][2], False) + self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][2], False) + self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][2], False, addlength(witness_script(0, self.pubkey[2]))) + self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][2], False, addlength(witness_script(1, self.pubkey[2]))) + + print("Verify default node can now use witness txs") + self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True) #block 432 + self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True) #block 433 + self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True) #block 434 + self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True) #block 435 + +if __name__ == '__main__': + SegWitTest().main() diff --git a/qa/rpc-tests/test_framework/blocktools.py b/qa/rpc-tests/test_framework/blocktools.py index 26cc396315..df4fe13e5c 100644 --- a/qa/rpc-tests/test_framework/blocktools.py +++ b/qa/rpc-tests/test_framework/blocktools.py @@ -5,7 +5,7 @@ # file COPYING or http://www.opensource.org/licenses/mit-license.php. from .mininode import * -from .script import CScript, OP_TRUE, OP_CHECKSIG +from .script import CScript, OP_TRUE, OP_CHECKSIG, OP_RETURN # Create a block (with regtest difficulty) def create_block(hashprev, coinbase, nTime=None): @@ -22,6 +22,29 @@ def create_block(hashprev, coinbase, nTime=None): block.calc_sha256() return block +# From BIP141 +WITNESS_COMMITMENT_HEADER = b"\xaa\x21\xa9\xed" + +# According to BIP141, blocks with witness rules active must commit to the +# hash of all in-block transactions including witness. +def add_witness_commitment(block, nonce=0): + # First calculate the merkle root of the block's + # transactions, with witnesses. + witness_nonce = nonce + witness_root = block.calc_witness_merkle_root() + witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root)+ser_uint256(witness_nonce))) + # witness_nonce should go to coinbase witness. + block.vtx[0].wit.vtxinwit = [CTxinWitness()] + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ser_uint256(witness_nonce)] + + # witness commitment is the last OP_RETURN output in coinbase + output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment) + block.vtx[0].vout.append(CTxOut(0, CScript([OP_RETURN, output_data]))) + block.vtx[0].rehash() + block.hashMerkleRoot = block.calc_merkle_root() + block.rehash() + + def serialize_script_num(value): r = bytearray(0) if value == 0: diff --git a/qa/rpc-tests/test_framework/mininode.py b/qa/rpc-tests/test_framework/mininode.py index 6612b99b84..4548e2e7c0 100755 --- a/qa/rpc-tests/test_framework/mininode.py +++ b/qa/rpc-tests/test_framework/mininode.py @@ -28,7 +28,7 @@ import asyncore import time import sys import random -from binascii import hexlify, unhexlify +from .util import hex_str_to_bytes, bytes_to_hex_str from io import BytesIO from codecs import encode import hashlib @@ -46,6 +46,11 @@ MAX_BLOCK_SIZE = 1000000 COIN = 100000000 # 1 btc in satoshis +NODE_NETWORK = (1 << 0) +NODE_GETUTXO = (1 << 1) +NODE_BLOOM = (1 << 2) +NODE_WITNESS = (1 << 3) + # Keep our own socket map for asyncore, so that we can track disconnects # ourselves (to workaround an issue with closing an asyncore socket when # using select) @@ -63,6 +68,8 @@ mininode_lock = RLock() def sha256(s): return hashlib.new('sha256', s).digest() +def ripemd160(s): + return hashlib.new('ripemd160', s).digest() def hash256(s): return sha256(sha256(s)) @@ -133,7 +140,10 @@ def deser_vector(f, c): return r -def ser_vector(l): +# ser_function_name: Allow for an alternate serialization function on the +# entries in the vector (we use this for serializing the vector of transactions +# for a witness block). +def ser_vector(l, ser_function_name=None): r = b"" if len(l) < 253: r = struct.pack("B", len(l)) @@ -144,7 +154,10 @@ def ser_vector(l): else: r = struct.pack("<BQ", 255, len(l)) for i in l: - r += i.serialize() + if ser_function_name: + r += getattr(i, ser_function_name)() + else: + r += i.serialize() return r @@ -239,12 +252,12 @@ def ser_int_vector(l): # Deserialize from a hex string representation (eg from RPC) def FromHex(obj, hex_string): - obj.deserialize(BytesIO(unhexlify(hex_string.encode('ascii')))) + obj.deserialize(BytesIO(hex_str_to_bytes(hex_string))) return obj # Convert a binary-serializable object to hex (eg for submission via RPC) def ToHex(obj): - return hexlify(obj.serialize()).decode('ascii') + return bytes_to_hex_str(obj.serialize()) # Objects that map to bitcoind objects, which can be serialized/deserialized @@ -273,12 +286,16 @@ class CAddress(object): return "CAddress(nServices=%i ip=%s port=%i)" % (self.nServices, self.ip, self.port) +MSG_WITNESS_FLAG = 1<<30 class CInv(object): typemap = { 0: "Error", 1: "TX", - 2: "Block"} + 2: "Block", + 1|MSG_WITNESS_FLAG: "WitnessTx", + 2|MSG_WITNESS_FLAG : "WitnessBlock" + } def __init__(self, t=0, h=0): self.type = t @@ -362,7 +379,7 @@ class CTxIn(object): def __repr__(self): return "CTxIn(prevout=%s scriptSig=%s nSequence=%i)" \ - % (repr(self.prevout), hexlify(self.scriptSig), + % (repr(self.prevout), bytes_to_hex_str(self.scriptSig), self.nSequence) @@ -384,7 +401,67 @@ class CTxOut(object): def __repr__(self): return "CTxOut(nValue=%i.%08i scriptPubKey=%s)" \ % (self.nValue // COIN, self.nValue % COIN, - hexlify(self.scriptPubKey)) + bytes_to_hex_str(self.scriptPubKey)) + + +class CScriptWitness(object): + def __init__(self): + # stack is a vector of strings + self.stack = [] + + def __repr__(self): + return "CScriptWitness(%s)" % \ + (",".join([bytes_to_hex_str(x) for x in self.stack])) + + def is_null(self): + if self.stack: + return False + return True + + +class CTxinWitness(object): + def __init__(self): + self.scriptWitness = CScriptWitness() + + def deserialize(self, f): + self.scriptWitness.stack = deser_string_vector(f) + + def serialize(self): + return ser_string_vector(self.scriptWitness.stack) + + def __repr__(self): + return repr(self.scriptWitness) + + def is_null(self): + return self.scriptWitness.is_null() + + +class CTxWitness(object): + def __init__(self): + self.vtxinwit = [] + + def deserialize(self, f): + for i in range(len(self.vtxinwit)): + self.vtxinwit[i].deserialize(f) + + def serialize(self): + r = b"" + # This is different than the usual vector serialization -- + # we omit the length of the vector, which is required to be + # the same length as the transaction's vin vector. + for x in self.vtxinwit: + r += x.serialize() + return r + + def __repr__(self): + return "CTxWitness(%s)" % \ + (';'.join([repr(x) for x in self.vtxinwit])) + + def is_null(self): + for x in self.vtxinwit: + if not x.is_null(): + return False + return True class CTransaction(object): @@ -393,6 +470,7 @@ class CTransaction(object): self.nVersion = 1 self.vin = [] self.vout = [] + self.wit = CTxWitness() self.nLockTime = 0 self.sha256 = None self.hash = None @@ -401,32 +479,80 @@ class CTransaction(object): self.vin = copy.deepcopy(tx.vin) self.vout = copy.deepcopy(tx.vout) self.nLockTime = tx.nLockTime - self.sha256 = None - self.hash = None + self.sha256 = tx.sha256 + self.hash = tx.hash + self.wit = copy.deepcopy(tx.wit) def deserialize(self, f): self.nVersion = struct.unpack("<i", f.read(4))[0] self.vin = deser_vector(f, CTxIn) - self.vout = deser_vector(f, CTxOut) + flags = 0 + if len(self.vin) == 0: + flags = struct.unpack("<B", f.read(1))[0] + # Not sure why flags can't be zero, but this + # matches the implementation in bitcoind + if (flags != 0): + self.vin = deser_vector(f, CTxIn) + self.vout = deser_vector(f, CTxOut) + else: + self.vout = deser_vector(f, CTxOut) + if flags != 0: + self.wit.vtxinwit = [CTxinWitness()]*len(self.vin) + self.wit.deserialize(f) self.nLockTime = struct.unpack("<I", f.read(4))[0] self.sha256 = None self.hash = None - def serialize(self): + def serialize_without_witness(self): + r = b"" + r += struct.pack("<i", self.nVersion) + r += ser_vector(self.vin) + r += ser_vector(self.vout) + r += struct.pack("<I", self.nLockTime) + return r + + # Only serialize with witness when explicitly called for + def serialize_with_witness(self): + flags = 0 + if not self.wit.is_null(): + flags |= 1 r = b"" r += struct.pack("<i", self.nVersion) + if flags: + dummy = [] + r += ser_vector(dummy) + r += struct.pack("<B", flags) r += ser_vector(self.vin) r += ser_vector(self.vout) + if flags & 1: + if (len(self.wit.vtxinwit) != len(self.vin)): + # vtxinwit must have the same length as vin + self.wit.vtxinwit = self.wit.vtxinwit[:len(self.vin)] + for i in range(len(self.wit.vtxinwit), len(self.vin)): + self.wit.vtxinwit.append(CTxinWitness()) + r += self.wit.serialize() r += struct.pack("<I", self.nLockTime) return r + # Regular serialization is without witness -- must explicitly + # call serialize_with_witness to include witness data. + def serialize(self): + return self.serialize_without_witness() + + # Recalculate the txid (transaction hash without witness) def rehash(self): self.sha256 = None self.calc_sha256() - def calc_sha256(self): + # We will only cache the serialization without witness in + # self.sha256 and self.hash -- those are expected to be the txid. + def calc_sha256(self, with_witness=False): + if with_witness: + # Don't cache the result, just return it + return uint256_from_str(hash256(self.serialize_with_witness())) + if self.sha256 is None: - self.sha256 = uint256_from_str(hash256(self.serialize())) + self.sha256 = uint256_from_str(hash256(self.serialize_without_witness())) self.hash = encode(hash256(self.serialize())[::-1], 'hex_codec').decode('ascii') def is_valid(self): @@ -518,17 +644,17 @@ class CBlock(CBlockHeader): super(CBlock, self).deserialize(f) self.vtx = deser_vector(f, CTransaction) - def serialize(self): + def serialize(self, with_witness=False): r = b"" r += super(CBlock, self).serialize() - r += ser_vector(self.vtx) + if with_witness: + r += ser_vector(self.vtx, "serialize_with_witness") + else: + r += ser_vector(self.vtx) return r - def calc_merkle_root(self): - hashes = [] - for tx in self.vtx: - tx.calc_sha256() - hashes.append(ser_uint256(tx.sha256)) + # Calculate the merkle root given a vector of transaction hashes + def get_merkle_root(self, hashes): while len(hashes) > 1: newhashes = [] for i in range(0, len(hashes), 2): @@ -537,6 +663,24 @@ class CBlock(CBlockHeader): hashes = newhashes return uint256_from_str(hashes[0]) + def calc_merkle_root(self): + hashes = [] + for tx in self.vtx: + tx.calc_sha256() + hashes.append(ser_uint256(tx.sha256)) + return self.get_merkle_root(hashes) + + def calc_witness_merkle_root(self): + # For witness root purposes, the hash of the + # coinbase, with witness, is defined to be 0...0 + hashes = [ser_uint256(0)] + + for tx in self.vtx[1:]: + # Calculate the hashes with witness data + hashes.append(ser_uint256(tx.calc_sha256(True))) + + return self.get_merkle_root(hashes) + def is_valid(self): self.calc_sha256() target = uint256_from_compact(self.nBits) @@ -812,11 +956,16 @@ class msg_tx(object): self.tx.deserialize(f) def serialize(self): - return self.tx.serialize() + return self.tx.serialize_without_witness() def __repr__(self): return "msg_tx(tx=%s)" % (repr(self.tx)) +class msg_witness_tx(msg_tx): + + def serialize(self): + return self.tx.serialize_with_witness() + class msg_block(object): command = b"block" @@ -849,6 +998,12 @@ class msg_generic(object): def __repr__(self): return "msg_generic()" +class msg_witness_block(msg_block): + + def serialize(self): + r = self.block.serialize(with_witness=True) + return r + class msg_getaddr(object): command = b"getaddr" @@ -947,6 +1102,7 @@ class msg_sendheaders(object): def __repr__(self): return "msg_sendheaders()" + # getheaders message has # number of entries # vector of hashes @@ -1068,6 +1224,8 @@ class NodeConnCB(object): # tests; it causes message delivery to sleep for the specified time # before acquiring the global lock and delivering the next message. self.deliver_sleep_time = None + # Remember the services our peer has advertised + self.peer_services = None def set_deliver_sleep_time(self, value): with mininode_lock: @@ -1105,6 +1263,7 @@ class NodeConnCB(object): conn.ver_send = min(MY_VERSION, message.nVersion) if message.nVersion < 209: conn.ver_recv = conn.ver_send + conn.nServices = message.nServices def on_verack(self, conn, message): conn.ver_recv = conn.ver_send @@ -1135,6 +1294,7 @@ class NodeConnCB(object): def on_mempool(self, conn): pass def on_pong(self, conn, message): pass def on_feefilter(self, conn, message): pass + def on_sendheaders(self, conn, message): pass # More useful callbacks and functions for NodeConnCB's which have a single NodeConn class SingleNodeConnCB(NodeConnCB): @@ -1183,15 +1343,16 @@ class NodeConn(asyncore.dispatcher): b"getheaders": msg_getheaders, b"reject": msg_reject, b"mempool": msg_mempool, - b"feefilter": msg_feefilter + b"feefilter": msg_feefilter, + b"sendheaders": msg_sendheaders } MAGIC_BYTES = { "mainnet": b"\xf9\xbe\xb4\xd9", # mainnet "testnet3": b"\x0b\x11\x09\x07", # testnet3 - "regtest": b"\xfa\xbf\xb5\xda" # regtest + "regtest": b"\xfa\xbf\xb5\xda", # regtest } - def __init__(self, dstaddr, dstport, rpc, callback, net="regtest", services=1): + def __init__(self, dstaddr, dstport, rpc, callback, net="regtest", services=NODE_NETWORK): asyncore.dispatcher.__init__(self, map=mininode_socket_map) self.log = logging.getLogger("NodeConn(%s:%d)" % (dstaddr, dstport)) self.dstaddr = dstaddr @@ -1206,6 +1367,7 @@ class NodeConn(asyncore.dispatcher): self.network = net self.cb = callback self.disconnect = False + self.nServices = 0 # stuff version msg into sendbuf vt = msg_version() diff --git a/qa/rpc-tests/test_framework/script.py b/qa/rpc-tests/test_framework/script.py index 44a894fc8f..7678228c42 100644 --- a/qa/rpc-tests/test_framework/script.py +++ b/qa/rpc-tests/test_framework/script.py @@ -15,8 +15,9 @@ Functionality to build scripts, as well as SignatureHash(). """ -from .mininode import CTransaction, CTxOut, hash256 +from .mininode import CTransaction, CTxOut, sha256, hash256, uint256_from_str, ser_uint256, ser_string from binascii import hexlify +import hashlib import sys bchr = chr @@ -36,6 +37,10 @@ MAX_SCRIPT_OPCODES = 201 OPCODE_NAMES = {} +def hash160(s): + return hashlib.new('ripemd160', sha256(s)).digest() + + _opcode_instances = [] class CScriptOp(int): """A single script opcode""" @@ -895,3 +900,48 @@ def SignatureHash(script, txTo, inIdx, hashtype): hash = hash256(s) return (hash, None) + +# TODO: Allow cached hashPrevouts/hashSequence/hashOutputs to be provided. +# Performance optimization probably not necessary for python tests, however. +# Note that this corresponds to sigversion == 1 in EvalScript, which is used +# for version 0 witnesses. +def SegwitVersion1SignatureHash(script, txTo, inIdx, hashtype, amount): + + hashPrevouts = 0 + hashSequence = 0 + hashOutputs = 0 + + if not (hashtype & SIGHASH_ANYONECANPAY): + serialize_prevouts = bytes() + for i in txTo.vin: + serialize_prevouts += i.prevout.serialize() + hashPrevouts = uint256_from_str(hash256(serialize_prevouts)) + + if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): + serialize_sequence = bytes() + for i in txTo.vin: + serialize_sequence += struct.pack("<I", i.nSequence) + hashSequence = uint256_from_str(hash256(serialize_sequence)) + + if ((hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): + serialize_outputs = bytes() + for o in txTo.vout: + serialize_outputs += o.serialize() + hashOutputs = uint256_from_str(hash256(serialize_outputs)) + elif ((hashtype & 0x1f) == SIGHASH_SINGLE and inIdx < len(txTo.vout)): + serialize_outputs = txTo.vout[inIdx].serialize() + hashOutputs = uint256_from_str(hash256(serialize_outputs)) + + ss = bytes() + ss += struct.pack("<i", txTo.nVersion) + ss += ser_uint256(hashPrevouts) + ss += ser_uint256(hashSequence) + ss += txTo.vin[inIdx].prevout.serialize() + ss += ser_string(script) + ss += struct.pack("<q", amount) + ss += struct.pack("<I", txTo.vin[inIdx].nSequence) + ss += ser_uint256(hashOutputs) + ss += struct.pack("<i", txTo.nLockTime) + ss += struct.pack("<I", hashtype) + + return hash256(ss) diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp index f9ea94b9f4..8e8ac47455 100644 --- a/src/bitcoin-tx.cpp +++ b/src/bitcoin-tx.cpp @@ -195,7 +195,7 @@ static void MutateTxAddInput(CMutableTransaction& tx, const string& strInput) uint256 txid(uint256S(strTxid)); static const unsigned int minTxOutSz = 9; - static const unsigned int maxVout = MAX_BLOCK_SIZE / minTxOutSz; + static const unsigned int maxVout = MAX_BLOCK_BASE_SIZE / minTxOutSz; // extract and validate vout string strVout = vStrInputParts[1]; @@ -363,6 +363,18 @@ vector<unsigned char> ParseHexUO(map<string,UniValue>& o, string strKey) return ParseHexUV(o[strKey], strKey); } +static CAmount AmountFromValue(const UniValue& value) +{ + if (!value.isNum() && !value.isStr()) + throw runtime_error("Amount is not a number or string"); + CAmount amount; + if (!ParseFixedPoint(value.getValStr(), 8, &amount)) + throw runtime_error("Invalid amount"); + if (!MoneyRange(amount)) + throw runtime_error("Amount out of range"); + return amount; +} + static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) { int nHashType = SIGHASH_ALL; @@ -434,12 +446,15 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) if ((unsigned int)nOut >= coins->vout.size()) coins->vout.resize(nOut+1); coins->vout[nOut].scriptPubKey = scriptPubKey; - coins->vout[nOut].nValue = 0; // we don't know the actual output value + coins->vout[nOut].nValue = 0; + if (prevOut.exists("amount")) { + coins->vout[nOut].nValue = AmountFromValue(prevOut["amount"]); + } } // if redeemScript given and private keys given, // add redeemScript to the tempKeystore so it can be signed: - if (fGivenKeys && scriptPubKey.IsPayToScriptHash() && + if (fGivenKeys && (scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash()) && prevOut.exists("redeemScript")) { UniValue v = prevOut["redeemScript"]; vector<unsigned char> rsData(ParseHexUV(v, "redeemScript")); @@ -462,17 +477,19 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) continue; } const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey; + const CAmount& amount = coins->vout[txin.prevout.n].nValue; - txin.scriptSig.clear(); + SignatureData sigdata; // Only sign SIGHASH_SINGLE if there's a corresponding output: if (!fHashSingle || (i < mergedTx.vout.size())) - SignSignature(keystore, prevPubKey, mergedTx, i, nHashType); + ProduceSignature(MutableTransactionSignatureCreator(&keystore, &mergedTx, i, amount, nHashType), prevPubKey, sigdata); // ... and merge in other signatures: - BOOST_FOREACH(const CTransaction& txv, txVariants) { - txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig); - } - if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i))) + BOOST_FOREACH(const CTransaction& txv, txVariants) + sigdata = CombineSignatures(prevPubKey, MutableTransactionSignatureChecker(&mergedTx, i, amount), sigdata, DataFromTransaction(txv, i)); + UpdateTransaction(mergedTx, i, sigdata); + + if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i, amount))) fComplete = false; } diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp index 7fd6a9cf52..5c4c3bd274 100644 --- a/src/blockencodings.cpp +++ b/src/blockencodings.cpp @@ -15,7 +15,7 @@ #include <unordered_map> -#define MIN_TRANSACTION_SIZE (::GetSerializeSize(CTransaction(), SER_NETWORK, PROTOCOL_VERSION)) +#define MIN_TRANSACTION_BASE_SIZE (::GetSerializeSize(CTransaction(), SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS)) CBlockHeaderAndShortTxIDs::CBlockHeaderAndShortTxIDs(const CBlock& block) : nonce(GetRand(std::numeric_limits<uint64_t>::max())), @@ -50,7 +50,7 @@ uint64_t CBlockHeaderAndShortTxIDs::GetShortID(const uint256& txhash) const { ReadStatus PartiallyDownloadedBlock::InitData(const CBlockHeaderAndShortTxIDs& cmpctblock) { if (cmpctblock.header.IsNull() || (cmpctblock.shorttxids.empty() && cmpctblock.prefilledtxn.empty())) return READ_STATUS_INVALID; - if (cmpctblock.shorttxids.size() + cmpctblock.prefilledtxn.size() > MAX_BLOCK_SIZE / MIN_TRANSACTION_SIZE) + if (cmpctblock.shorttxids.size() + cmpctblock.prefilledtxn.size() > MAX_BLOCK_BASE_SIZE / MIN_TRANSACTION_BASE_SIZE) return READ_STATUS_INVALID; assert(header.IsNull() && txn_available.empty()); diff --git a/src/chain.h b/src/chain.h index a13dae33d1..76a774c123 100644 --- a/src/chain.h +++ b/src/chain.h @@ -144,6 +144,8 @@ enum BlockStatus: uint32_t { BLOCK_FAILED_VALID = 32, //! stage after last reached validness failed BLOCK_FAILED_CHILD = 64, //! descends from failed block BLOCK_FAILED_MASK = BLOCK_FAILED_VALID | BLOCK_FAILED_CHILD, + + BLOCK_OPT_WITNESS = 128, //! block data in blk*.data was received with a witness-enforcing client }; /** The block chain is a tree shaped structure starting with the diff --git a/src/chainparams.cpp b/src/chainparams.cpp index 6eb66c78e2..86bef1e105 100644 --- a/src/chainparams.cpp +++ b/src/chainparams.cpp @@ -92,6 +92,11 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016 consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017 + // Deployment of SegWit (BIP141 and BIP143) + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 0; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 0; // Never / undefined + /** * The message start string is designed to be unlikely to occur in normal data. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce @@ -109,7 +114,7 @@ public: assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")); assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b")); - vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille + vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be", true)); // Pieter Wuille vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker @@ -183,6 +188,11 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016 consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017 + // Deployment of SegWit (BIP141 and BIP143) + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1462060800; // May 1st 2016 + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1493596800; // May 1st 2017 + pchMessageStart[0] = 0x0b; pchMessageStart[1] = 0x11; pchMessageStart[2] = 0x09; @@ -255,6 +265,9 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0; consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 999999999999ULL; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 0; + consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 999999999999ULL; pchMessageStart[0] = 0xfa; pchMessageStart[1] = 0xbf; @@ -317,3 +330,4 @@ void SelectParams(const std::string& network) SelectBaseParams(network); pCurrentParams = &Params(network); } + diff --git a/src/consensus/consensus.h b/src/consensus/consensus.h index ad9cc26175..81f40593b2 100644 --- a/src/consensus/consensus.h +++ b/src/consensus/consensus.h @@ -6,10 +6,16 @@ #ifndef BITCOIN_CONSENSUS_CONSENSUS_H #define BITCOIN_CONSENSUS_CONSENSUS_H -/** The maximum allowed size for a serialized block, in bytes (network rule) */ -static const unsigned int MAX_BLOCK_SIZE = 1000000; +#include <stdint.h> + +/** The maximum allowed size for a serialized block, in bytes (only for buffer size limits) */ +static const unsigned int MAX_BLOCK_SERIALIZED_SIZE = 4000000; +/** The maximum allowed cost for a block, see BIP 141 (network rule) */ +static const unsigned int MAX_BLOCK_COST = 4000000; +/** The maximum allowed size for a block excluding witness data, in bytes (network rule) */ +static const unsigned int MAX_BLOCK_BASE_SIZE = 1000000; /** The maximum allowed number of signature check operations in a block (network rule) */ -static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50; +static const int64_t MAX_BLOCK_SIGOPS_COST = 80000; /** Coinbase transaction outputs can only be spent after this number of new blocks (network rule) */ static const int COINBASE_MATURITY = 100; diff --git a/src/consensus/merkle.cpp b/src/consensus/merkle.cpp index 22eb7159a2..35f7d2e05a 100644 --- a/src/consensus/merkle.cpp +++ b/src/consensus/merkle.cpp @@ -165,6 +165,17 @@ uint256 BlockMerkleRoot(const CBlock& block, bool* mutated) return ComputeMerkleRoot(leaves, mutated); } +uint256 BlockWitnessMerkleRoot(const CBlock& block, bool* mutated) +{ + std::vector<uint256> leaves; + leaves.resize(block.vtx.size()); + leaves[0].SetNull(); // The witness hash of the coinbase is 0. + for (size_t s = 1; s < block.vtx.size(); s++) { + leaves[s] = block.vtx[s].GetWitnessHash(); + } + return ComputeMerkleRoot(leaves, mutated); +} + std::vector<uint256> BlockMerkleBranch(const CBlock& block, uint32_t position) { std::vector<uint256> leaves; diff --git a/src/consensus/merkle.h b/src/consensus/merkle.h index 6ef59745ac..194aea9b75 100644 --- a/src/consensus/merkle.h +++ b/src/consensus/merkle.h @@ -23,6 +23,12 @@ uint256 ComputeMerkleRootFromBranch(const uint256& leaf, const std::vector<uint2 uint256 BlockMerkleRoot(const CBlock& block, bool* mutated = NULL); /* + * Compute the Merkle root of the witness transactions in a block. + * *mutated is set to true if a duplicated subtree was found. + */ +uint256 BlockWitnessMerkleRoot(const CBlock& block, bool* mutated = NULL); + +/* * Compute the Merkle branch for the tree of transactions in a block, for a * given position. * This can be verified using ComputeMerkleRootFromBranch. diff --git a/src/consensus/params.h b/src/consensus/params.h index 6c4cc49479..822ec87d69 100644 --- a/src/consensus/params.h +++ b/src/consensus/params.h @@ -16,6 +16,7 @@ enum DeploymentPos { DEPLOYMENT_TESTDUMMY, DEPLOYMENT_CSV, // Deployment of BIP68, BIP112, and BIP113. + DEPLOYMENT_SEGWIT, // Deployment of BIP141 and BIP143 // NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp MAX_VERSION_BITS_DEPLOYMENTS }; diff --git a/src/consensus/validation.h b/src/consensus/validation.h index d7e57f5b5e..000b197270 100644 --- a/src/consensus/validation.h +++ b/src/consensus/validation.h @@ -77,6 +77,9 @@ public: bool CorruptionPossible() const { return corruptionPossible; } + void SetCorruptionPossible() { + corruptionPossible = true; + } unsigned int GetRejectCode() const { return chRejectCode; } std::string GetRejectReason() const { return strRejectReason; } std::string GetDebugMessage() const { return strDebugMessage; } diff --git a/src/core_io.h b/src/core_io.h index e8c0c49e84..b559d44bf5 100644 --- a/src/core_io.h +++ b/src/core_io.h @@ -17,7 +17,7 @@ class UniValue; // core_read.cpp extern CScript ParseScript(const std::string& s); extern std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode = false); -extern bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx); +extern bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx, bool fTryNoWitness = false); extern bool DecodeHexBlk(CBlock&, const std::string& strHexBlk); extern uint256 ParseHashUV(const UniValue& v, const std::string& strName); extern uint256 ParseHashStr(const std::string&, const std::string& strName); diff --git a/src/core_memusage.h b/src/core_memusage.h index 450537d059..dd86f805fe 100644 --- a/src/core_memusage.h +++ b/src/core_memusage.h @@ -25,8 +25,28 @@ static inline size_t RecursiveDynamicUsage(const CTxOut& out) { return RecursiveDynamicUsage(out.scriptPubKey); } +static inline size_t RecursiveDynamicUsage(const CScriptWitness& scriptWit) { + size_t mem = memusage::DynamicUsage(scriptWit.stack); + for (std::vector<std::vector<unsigned char> >::const_iterator it = scriptWit.stack.begin(); it != scriptWit.stack.end(); it++) { + mem += memusage::DynamicUsage(*it); + } + return mem; +} + +static inline size_t RecursiveDynamicUsage(const CTxinWitness& txinwit) { + return RecursiveDynamicUsage(txinwit.scriptWitness); +} + +static inline size_t RecursiveDynamicUsage(const CTxWitness& txwit) { + size_t mem = memusage::DynamicUsage(txwit.vtxinwit); + for (std::vector<CTxinWitness>::const_iterator it = txwit.vtxinwit.begin(); it != txwit.vtxinwit.end(); it++) { + mem += RecursiveDynamicUsage(*it); + } + return mem; +} + static inline size_t RecursiveDynamicUsage(const CTransaction& tx) { - size_t mem = memusage::DynamicUsage(tx.vin) + memusage::DynamicUsage(tx.vout); + size_t mem = memusage::DynamicUsage(tx.vin) + memusage::DynamicUsage(tx.vout) + RecursiveDynamicUsage(tx.wit); for (std::vector<CTxIn>::const_iterator it = tx.vin.begin(); it != tx.vin.end(); it++) { mem += RecursiveDynamicUsage(*it); } @@ -37,7 +57,7 @@ static inline size_t RecursiveDynamicUsage(const CTransaction& tx) { } static inline size_t RecursiveDynamicUsage(const CMutableTransaction& tx) { - size_t mem = memusage::DynamicUsage(tx.vin) + memusage::DynamicUsage(tx.vout); + size_t mem = memusage::DynamicUsage(tx.vin) + memusage::DynamicUsage(tx.vout) + RecursiveDynamicUsage(tx.wit); for (std::vector<CTxIn>::const_iterator it = tx.vin.begin(); it != tx.vin.end(); it++) { mem += RecursiveDynamicUsage(*it); } diff --git a/src/core_read.cpp b/src/core_read.cpp index 444a4c7eba..7cfda6dd6d 100644 --- a/src/core_read.cpp +++ b/src/core_read.cpp @@ -90,12 +90,26 @@ CScript ParseScript(const std::string& s) return result; } -bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx) +bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx, bool fTryNoWitness) { if (!IsHex(strHexTx)) return false; vector<unsigned char> txData(ParseHex(strHexTx)); + + if (fTryNoWitness) { + CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS); + try { + ssData >> tx; + if (ssData.eof()) { + return true; + } + } + catch (const std::exception&) { + // Fall through. + } + } + CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION); try { ssData >> tx; diff --git a/src/init.cpp b/src/init.cpp index fe367c6a33..ea4ccaddfc 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -452,6 +452,7 @@ std::string HelpMessage(HelpMessageMode mode) strUsage += HelpMessageOpt("-mempoolreplacement", strprintf(_("Enable transaction replacement in the memory pool (default: %u)"), DEFAULT_ENABLE_REPLACEMENT)); strUsage += HelpMessageGroup(_("Block creation options:")); + strUsage += HelpMessageOpt("-blockmaxcost=<n>", strprintf(_("Set maximum block cost (default: %d)"), DEFAULT_BLOCK_MAX_COST)); strUsage += HelpMessageOpt("-blockminsize=<n>", strprintf(_("Set minimum block size in bytes (default: %u)"), DEFAULT_BLOCK_MIN_SIZE)); strUsage += HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE)); strUsage += HelpMessageOpt("-blockprioritysize=<n>", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE)); @@ -1283,6 +1284,14 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) break; } + if (!fReindex) { + uiInterface.InitMessage(_("Rewinding blocks...")); + if (!RewindBlockIndex(chainparams)) { + strLoadError = _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain"); + break; + } + } + uiInterface.InitMessage(_("Verifying blocks...")); if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", @@ -1378,6 +1387,18 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) } } + if (Params().GetConsensus().vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { + // Only advertize witness capabilities if they have a reasonable start time. + // This allows us to have the code merged without a defined softfork, by setting its + // end time to 0. + // Note that setting NODE_WITNESS is never required: the only downside from not + // doing so is that after activation, no upgraded nodes will fetch from you. + nLocalServices = ServiceFlags(nLocalServices | NODE_WITNESS); + // Only care about others providing witness capabilities if there is a softfork + // defined. + nRelevantServices = ServiceFlags(nRelevantServices | NODE_WITNESS); + } + // ********************************************************* Step 10: import blocks if (mapArgs.count("-blocknotify")) diff --git a/src/main.cpp b/src/main.cpp index ae195ecc40..6cdd55e397 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -293,6 +293,8 @@ struct CNodeState { bool fPreferHeaderAndIDs; //! Whether this peer will send us cmpctblocks if we request them bool fProvidesHeaderAndIDs; + //! Whether this peer can give us witnesses + bool fHaveWitness; CNodeState() { fCurrentlyConnected = false; @@ -311,6 +313,7 @@ struct CNodeState { fPreferHeaders = false; fPreferHeaderAndIDs = false; fProvidesHeaderAndIDs = false; + fHaveWitness = false; } }; @@ -470,6 +473,10 @@ void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) { } void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pfrom) { + if (nLocalServices & NODE_WITNESS) { + // Don't ever request compact blocks when segwit is enabled. + return; + } if (nodestate->fProvidesHeaderAndIDs) { BOOST_FOREACH(const NodeId nodeid, lNodesAnnouncingHeaderAndIDs) if (nodeid == pfrom->GetId()) @@ -655,6 +662,9 @@ CBlockIndex* FindForkInGlobalIndex(const CChain& chain, const CBlockLocator& loc CBlockIndex* pindex = (*mi).second; if (chain.Contains(pindex)) return pindex; + if (pindex->GetAncestor(chain.Height()) == chain.Tip()) { + return chain.Tip(); + } } } return chain.Genesis(); @@ -681,8 +691,8 @@ bool AddOrphanTx(const CTransaction& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(c // have been mined or received. // 100 orphans, each of which is at most 99,999 bytes big is // at most 10 megabytes of orphans and somewhat more byprev index (in the worst case): - unsigned int sz = tx.GetSerializeSize(SER_NETWORK, CTransaction::CURRENT_VERSION); - if (sz >= MAX_STANDARD_TX_SIZE) + unsigned int sz = GetTransactionCost(tx); + if (sz >= MAX_STANDARD_TX_COST) { LogPrint("mempool", "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString()); return false; @@ -1015,8 +1025,24 @@ unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& in return nSigOps; } +int64_t GetTransactionSigOpCost(const CTransaction& tx, const CCoinsViewCache& inputs, int flags) +{ + int64_t nSigOps = GetLegacySigOpCount(tx) * WITNESS_SCALE_FACTOR; + if (tx.IsCoinBase()) + return nSigOps; + if (flags & SCRIPT_VERIFY_P2SH) { + nSigOps += GetP2SHSigOpCount(tx, inputs) * WITNESS_SCALE_FACTOR; + } + + for (unsigned int i = 0; i < tx.vin.size(); i++) + { + const CTxOut &prevout = inputs.GetOutputFor(tx.vin[i]); + nSigOps += CountWitnessSigOps(tx.vin[i].scriptSig, prevout.scriptPubKey, i < tx.wit.vtxinwit.size() ? &tx.wit.vtxinwit[i].scriptWitness : NULL, flags); + } + return nSigOps; +} @@ -1029,8 +1055,8 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) return state.DoS(10, false, REJECT_INVALID, "bad-txns-vin-empty"); if (tx.vout.empty()) return state.DoS(10, false, REJECT_INVALID, "bad-txns-vout-empty"); - // Size limits - if (::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE) + // Size limits (this doesn't take the witness into account, as that hasn't been checked for malleability) + if (::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) > MAX_BLOCK_BASE_SIZE) return state.DoS(100, false, REJECT_INVALID, "bad-txns-oversize"); // Check for negative or overflow output values @@ -1119,6 +1145,11 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C return state.DoS(0, false, REJECT_NONSTANDARD, "premature-version2-tx"); } + // Reject transactions with witness before segregated witness activates (override with -prematurewitness) + if (!GetBoolArg("-prematurewitness",false) && !tx.wit.IsNull() && !IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus())) { + return state.DoS(0, false, REJECT_NONSTANDARD, "no-witness-yet", true); + } + // Only accept nLockTime-using transactions that can be mined in the next // block; we don't want our mempool filled up with transactions that can't // be mined yet. @@ -1231,8 +1262,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C if (fRequireStandard && !AreInputsStandard(tx, view)) return state.Invalid(false, REJECT_NONSTANDARD, "bad-txns-nonstandard-inputs"); - unsigned int nSigOps = GetLegacySigOpCount(tx); - nSigOps += GetP2SHSigOpCount(tx, view); + int64_t nSigOpsCost = GetTransactionSigOpCost(tx, view, STANDARD_SCRIPT_VERIFY_FLAGS); CAmount nValueOut = tx.GetValueOut(); CAmount nFees = nValueIn-nValueOut; @@ -1255,7 +1285,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C } } - CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), pool.HasNoInputsOf(tx), inChainInputValue, fSpendsCoinbase, nSigOps, lp); + CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), pool.HasNoInputsOf(tx), inChainInputValue, fSpendsCoinbase, nSigOpsCost, lp); unsigned int nSize = entry.GetTxSize(); // Check that the transaction doesn't have an excessive number of @@ -1263,9 +1293,9 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C // itself can contain sigops MAX_STANDARD_TX_SIGOPS is less than // MAX_BLOCK_SIGOPS; we still consider this an invalid rather than // merely non-standard transaction. - if ((nSigOps > MAX_STANDARD_TX_SIGOPS) || (nBytesPerSigOp && nSigOps > nSize / nBytesPerSigOp)) + if ((nSigOpsCost > MAX_STANDARD_TX_SIGOPS_COST) || (nBytesPerSigOp && nSigOpsCost > nSize * WITNESS_SCALE_FACTOR / nBytesPerSigOp)) return state.DoS(0, false, REJECT_NONSTANDARD, "bad-txns-too-many-sigops", false, - strprintf("%d", nSigOps)); + strprintf("%d", nSigOpsCost)); CAmount mempoolRejectFee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize); if (mempoolRejectFee > 0 && nModifiedFees < mempoolRejectFee) { @@ -1457,10 +1487,24 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C } } + unsigned int scriptVerifyFlags = STANDARD_SCRIPT_VERIFY_FLAGS; + if (!Params().RequireStandard()) { + scriptVerifyFlags = GetArg("-promiscuousmempoolflags", scriptVerifyFlags); + } + // Check against previous transactions // This is done last to help prevent CPU exhaustion denial-of-service attacks. - if (!CheckInputs(tx, state, view, true, STANDARD_SCRIPT_VERIFY_FLAGS, true)) - return false; // state filled in by CheckInputs + if (!CheckInputs(tx, state, view, true, scriptVerifyFlags, true)) { + // SCRIPT_VERIFY_CLEANSTACK requires SCRIPT_VERIFY_WITNESS, so we + // need to turn both off, and compare against just turning off CLEANSTACK + // to see if the failure is specifically due to witness validation. + if (CheckInputs(tx, state, view, true, scriptVerifyFlags & ~(SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_CLEANSTACK), true) && + !CheckInputs(tx, state, view, true, scriptVerifyFlags & ~SCRIPT_VERIFY_CLEANSTACK, true)) { + // Only the witness is wrong, so the transaction itself may be fine. + state.SetCorruptionPossible(); + } + return false; + } // Check again against just the consensus-critical mandatory script // verification flags, in case of bugs in the standard flags that cause @@ -1867,7 +1911,8 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight) bool CScriptCheck::operator()() { const CScript &scriptSig = ptxTo->vin[nIn].scriptSig; - if (!VerifyScript(scriptSig, scriptPubKey, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, cacheStore), &error)) { + const CScriptWitness *witness = (nIn < ptxTo->wit.vtxinwit.size()) ? &ptxTo->wit.vtxinwit[nIn].scriptWitness : NULL; + if (!VerifyScript(scriptSig, scriptPubKey, witness, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, amount, cacheStore), &error)) { return false; } return true; @@ -2405,6 +2450,11 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin nLockTimeFlags |= LOCKTIME_VERIFY_SEQUENCE; } + // Start enforcing WITNESS rules using versionbits logic. + if (IsWitnessEnabled(pindex->pprev, chainparams.GetConsensus())) { + flags |= SCRIPT_VERIFY_WITNESS; + } + int64_t nTime2 = GetTimeMicros(); nTimeForks += nTime2 - nTime1; LogPrint("bench", " - Fork checks: %.2fms [%.2fs]\n", 0.001 * (nTime2 - nTime1), nTimeForks * 0.000001); @@ -2416,7 +2466,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin std::vector<int> prevheights; CAmount nFees = 0; int nInputs = 0; - unsigned int nSigOps = 0; + int64_t nSigOpsCost = 0; CDiskTxPos pos(pindex->GetBlockPos(), GetSizeOfCompactSize(block.vtx.size())); std::vector<std::pair<uint256, CDiskTxPos> > vPos; vPos.reserve(block.vtx.size()); @@ -2426,10 +2476,6 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin const CTransaction &tx = block.vtx[i]; nInputs += tx.vin.size(); - nSigOps += GetLegacySigOpCount(tx); - if (nSigOps > MAX_BLOCK_SIGOPS) - return state.DoS(100, error("ConnectBlock(): too many sigops"), - REJECT_INVALID, "bad-blk-sigops"); if (!tx.IsCoinBase()) { @@ -2460,18 +2506,19 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin return state.DoS(100, error("%s: contains a non-BIP68-final transaction", __func__), REJECT_INVALID, "bad-txns-nonfinal"); } + } - if (fStrictPayToScriptHash) - { - // Add in sigops done by pay-to-script-hash inputs; - // this is to prevent a "rogue miner" from creating - // an incredibly-expensive-to-validate block. - nSigOps += GetP2SHSigOpCount(tx, view); - if (nSigOps > MAX_BLOCK_SIGOPS) - return state.DoS(100, error("ConnectBlock(): too many sigops"), - REJECT_INVALID, "bad-blk-sigops"); - } + // GetTransactionSigOpCost counts 3 types of sigops: + // * legacy (always) + // * p2sh (when P2SH enabled in flags and excludes coinbase) + // * witness (when witness enabled in flags and excludes coinbase) + nSigOpsCost += GetTransactionSigOpCost(tx, view, flags); + if (nSigOpsCost > MAX_BLOCK_SIGOPS_COST) + return state.DoS(100, error("ConnectBlock(): too many sigops"), + REJECT_INVALID, "bad-blk-sigops"); + if (!tx.IsCoinBase()) + { nFees += view.GetValueIn(tx)-tx.GetValueOut(); std::vector<CScriptCheck> vChecks; @@ -2742,7 +2789,7 @@ void static UpdateTip(CBlockIndex *pindexNew, const CChainParams& chainParams) { } /** Disconnect chainActive's tip. You probably want to call mempool.removeForReorg and manually re-limit mempool size after this, with cs_main held. */ -bool static DisconnectTip(CValidationState& state, const CChainParams& chainparams) +bool static DisconnectTip(CValidationState& state, const CChainParams& chainparams, bool fBare = false) { CBlockIndex *pindexDelete = chainActive.Tip(); assert(pindexDelete); @@ -2762,24 +2809,28 @@ bool static DisconnectTip(CValidationState& state, const CChainParams& chainpara // Write the chain state to disk, if necessary. if (!FlushStateToDisk(state, FLUSH_STATE_IF_NEEDED)) return false; - // Resurrect mempool transactions from the disconnected block. - std::vector<uint256> vHashUpdate; - BOOST_FOREACH(const CTransaction &tx, block.vtx) { - // ignore validation errors in resurrected transactions - list<CTransaction> removed; - CValidationState stateDummy; - if (tx.IsCoinBase() || !AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL, true)) { - mempool.removeRecursive(tx, removed); - } else if (mempool.exists(tx.GetHash())) { - vHashUpdate.push_back(tx.GetHash()); - } - } - // AcceptToMemoryPool/addUnchecked all assume that new mempool entries have - // no in-mempool children, which is generally not true when adding - // previously-confirmed transactions back to the mempool. - // UpdateTransactionsFromBlock finds descendants of any transactions in this - // block that were added back and cleans up the mempool state. - mempool.UpdateTransactionsFromBlock(vHashUpdate); + + if (!fBare) { + // Resurrect mempool transactions from the disconnected block. + std::vector<uint256> vHashUpdate; + BOOST_FOREACH(const CTransaction &tx, block.vtx) { + // ignore validation errors in resurrected transactions + list<CTransaction> removed; + CValidationState stateDummy; + if (tx.IsCoinBase() || !AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL, true)) { + mempool.removeRecursive(tx, removed); + } else if (mempool.exists(tx.GetHash())) { + vHashUpdate.push_back(tx.GetHash()); + } + } + // AcceptToMemoryPool/addUnchecked all assume that new mempool entries have + // no in-mempool children, which is generally not true when adding + // previously-confirmed transactions back to the mempool. + // UpdateTransactionsFromBlock finds descendants of any transactions in this + // block that were added back and cleans up the mempool state. + mempool.UpdateTransactionsFromBlock(vHashUpdate); + } + // Update chainActive and related variables. UpdateTip(pindexDelete->pprev, chainparams); // Let wallets know transactions went from 1-confirmed to @@ -3231,6 +3282,9 @@ bool ReceivedBlockTransactions(const CBlock &block, CValidationState& state, CBl pindexNew->nDataPos = pos.nPos; pindexNew->nUndoPos = 0; pindexNew->nStatus |= BLOCK_HAVE_DATA; + if (IsWitnessEnabled(pindexNew->pprev, Params().GetConsensus())) { + pindexNew->nStatus |= BLOCK_OPT_WITNESS; + } pindexNew->RaiseValidity(BLOCK_VALID_TRANSACTIONS); setDirtyBlockIndex.insert(pindexNew); @@ -3394,9 +3448,11 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P // All potential-corruption validation must be done before we do any // transaction validation, as otherwise we may mark the header as invalid // because we receive the wrong transactions for it. + // Note that witness malleability is checked in ContextualCheckBlock, so no + // checks that use witness data may be performed here. // Size limits - if (block.vtx.empty() || block.vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE) + if (block.vtx.empty() || block.vtx.size() > MAX_BLOCK_BASE_SIZE || ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) > MAX_BLOCK_BASE_SIZE) return state.DoS(100, false, REJECT_INVALID, "bad-blk-length", false, "size limits failed"); // First transaction must be coinbase, the rest must not be @@ -3417,7 +3473,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P { nSigOps += GetLegacySigOpCount(tx); } - if (nSigOps > MAX_BLOCK_SIGOPS) + if (nSigOps * WITNESS_SCALE_FACTOR > MAX_BLOCK_SIGOPS_COST) return state.DoS(100, false, REJECT_INVALID, "bad-blk-sigops", false, "out-of-bounds SigOpCount"); if (fCheckPOW && fCheckMerkleRoot) @@ -3440,6 +3496,71 @@ static bool CheckIndexAgainstCheckpoint(const CBlockIndex* pindexPrev, CValidati return true; } +bool IsWitnessEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params) +{ + LOCK(cs_main); + return (VersionBitsState(pindexPrev, params, Consensus::DEPLOYMENT_SEGWIT, versionbitscache) == THRESHOLD_ACTIVE); +} + +// Compute at which vout of the block's coinbase transaction the witness +// commitment occurs, or -1 if not found. +static int GetWitnessCommitmentIndex(const CBlock& block) +{ + int commitpos = -1; + for (size_t o = 0; o < block.vtx[0].vout.size(); o++) { + if (block.vtx[0].vout[o].scriptPubKey.size() >= 38 && block.vtx[0].vout[o].scriptPubKey[0] == OP_RETURN && block.vtx[0].vout[o].scriptPubKey[1] == 0x24 && block.vtx[0].vout[o].scriptPubKey[2] == 0xaa && block.vtx[0].vout[o].scriptPubKey[3] == 0x21 && block.vtx[0].vout[o].scriptPubKey[4] == 0xa9 && block.vtx[0].vout[o].scriptPubKey[5] == 0xed) { + commitpos = o; + } + } + return commitpos; +} + +void UpdateUncommittedBlockStructures(CBlock& block, const CBlockIndex* pindexPrev, const Consensus::Params& consensusParams) +{ + int commitpos = GetWitnessCommitmentIndex(block); + static const std::vector<unsigned char> nonce(32, 0x00); + if (commitpos != -1 && IsWitnessEnabled(pindexPrev, consensusParams) && block.vtx[0].wit.IsEmpty()) { + block.vtx[0].wit.vtxinwit.resize(1); + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack.resize(1); + block.vtx[0].wit.vtxinwit[0].scriptWitness.stack[0] = nonce; + } +} + +std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBlockIndex* pindexPrev, const Consensus::Params& consensusParams) +{ + std::vector<unsigned char> commitment; + int commitpos = GetWitnessCommitmentIndex(block); + bool fHaveWitness = false; + for (size_t t = 1; t < block.vtx.size(); t++) { + if (!block.vtx[t].wit.IsNull()) { + fHaveWitness = true; + break; + } + } + std::vector<unsigned char> ret(32, 0x00); + if (fHaveWitness && IsWitnessEnabled(pindexPrev, consensusParams)) { + if (commitpos == -1) { + uint256 witnessroot = BlockWitnessMerkleRoot(block, NULL); + CHash256().Write(witnessroot.begin(), 32).Write(&ret[0], 32).Finalize(witnessroot.begin()); + CTxOut out; + out.nValue = 0; + out.scriptPubKey.resize(38); + out.scriptPubKey[0] = OP_RETURN; + out.scriptPubKey[1] = 0x24; + out.scriptPubKey[2] = 0xaa; + out.scriptPubKey[3] = 0x21; + out.scriptPubKey[4] = 0xa9; + out.scriptPubKey[5] = 0xed; + memcpy(&out.scriptPubKey[6], witnessroot.begin(), 32); + commitment = std::vector<unsigned char>(out.scriptPubKey.begin(), out.scriptPubKey.end()); + const_cast<std::vector<CTxOut>*>(&block.vtx[0].vout)->push_back(out); + block.vtx[0].UpdateHash(); + } + } + UpdateUncommittedBlockStructures(block, pindexPrev, consensusParams); + return commitment; +} + bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, CBlockIndex * const pindexPrev, int64_t nAdjustedTime) { // Check proof of work @@ -3496,6 +3617,53 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn } } + // Validation for witness commitments. + // * We compute the witness hash (which is the hash including witnesses) of all the block's transactions, except the + // coinbase (where 0x0000....0000 is used instead). + // * The coinbase scriptWitness is a stack of a single 32-byte vector, containing a witness nonce (unconstrained). + // * We build a merkle tree with all those witness hashes as leaves (similar to the hashMerkleRoot in the block header). + // * There must be at least one output whose scriptPubKey is a single 36-byte push, the first 4 bytes of which are + // {0xaa, 0x21, 0xa9, 0xed}, and the following 32 bytes are SHA256^2(witness root, witness nonce). In case there are + // multiple, the last one is used. + bool fHaveWitness = false; + if (IsWitnessEnabled(pindexPrev, consensusParams)) { + int commitpos = GetWitnessCommitmentIndex(block); + if (commitpos != -1) { + bool malleated = false; + uint256 hashWitness = BlockWitnessMerkleRoot(block, &malleated); + // The malleation check is ignored; as the transaction tree itself + // already does not permit it, it is impossible to trigger in the + // witness tree. + if (block.vtx[0].wit.vtxinwit.size() != 1 || block.vtx[0].wit.vtxinwit[0].scriptWitness.stack.size() != 1 || block.vtx[0].wit.vtxinwit[0].scriptWitness.stack[0].size() != 32) { + return state.DoS(100, error("%s : invalid witness nonce size", __func__), REJECT_INVALID, "bad-witness-nonce-size", true); + } + CHash256().Write(hashWitness.begin(), 32).Write(&block.vtx[0].wit.vtxinwit[0].scriptWitness.stack[0][0], 32).Finalize(hashWitness.begin()); + if (memcmp(hashWitness.begin(), &block.vtx[0].vout[commitpos].scriptPubKey[6], 32)) { + return state.DoS(100, error("%s : witness merkle commitment mismatch", __func__), REJECT_INVALID, "bad-witness-merkle-match", true); + } + fHaveWitness = true; + } + } + + // No witness data is allowed in blocks that don't commit to witness data, as this would otherwise leave room for spam + if (!fHaveWitness) { + for (size_t i = 0; i < block.vtx.size(); i++) { + if (!block.vtx[i].wit.IsNull()) { + return state.DoS(100, error("%s : unexpected witness data found", __func__), REJECT_INVALID, "unexpected-witness", true); + } + } + } + + // After the coinbase witness nonce and commitment are verified, + // we can check if the block cost passes (before we've checked the + // coinbase witness, it would be possible for the cost to be too + // large by filling up the coinbase witness, which doesn't change + // the block hash, so we couldn't mark the block as permanently + // failed). + if (GetBlockCost(block) > MAX_BLOCK_COST) { + return state.DoS(100, error("ContextualCheckBlock(): cost limit failed"), REJECT_INVALID, "bad-blk-cost"); + } + return true; } @@ -4065,6 +4233,90 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview, return true; } +bool RewindBlockIndex(const CChainParams& params) +{ + LOCK(cs_main); + + int nHeight = 1; + while (nHeight <= chainActive.Height()) { + if (IsWitnessEnabled(chainActive[nHeight - 1], params.GetConsensus()) && !(chainActive[nHeight]->nStatus & BLOCK_OPT_WITNESS)) { + break; + } + nHeight++; + } + + // nHeight is now the height of the first insufficiently-validated block, or tipheight + 1 + CValidationState state; + CBlockIndex* pindex = chainActive.Tip(); + while (chainActive.Height() >= nHeight) { + if (fPruneMode && !(chainActive.Tip()->nStatus & BLOCK_HAVE_DATA)) { + // If pruning, don't try rewinding past the HAVE_DATA point; + // since older blocks can't be served anyway, there's + // no need to walk further, and trying to DisconnectTip() + // will fail (and require a needless reindex/redownload + // of the blockchain). + break; + } + if (!DisconnectTip(state, params, true)) { + return error("RewindBlockIndex: unable to disconnect block at height %i", pindex->nHeight); + } + // Occasionally flush state to disk. + if (!FlushStateToDisk(state, FLUSH_STATE_PERIODIC)) + return false; + } + + // Reduce validity flag and have-data flags. + // We do this after actual disconnecting, otherwise we'll end up writing the lack of data + // to disk before writing the chainstate, resulting in a failure to continue if interrupted. + for (BlockMap::iterator it = mapBlockIndex.begin(); it != mapBlockIndex.end(); it++) { + CBlockIndex* pindexIter = it->second; + + // Note: If we encounter an insufficiently validated block that + // is on chainActive, it must be because we are a pruning node, and + // this block or some successor doesn't HAVE_DATA, so we were unable to + // rewind all the way. Blocks remaining on chainActive at this point + // must not have their validity reduced. + if (IsWitnessEnabled(pindexIter->pprev, params.GetConsensus()) && !(pindexIter->nStatus & BLOCK_OPT_WITNESS) && !chainActive.Contains(pindexIter)) { + // Reduce validity + pindexIter->nStatus = std::min<unsigned int>(pindexIter->nStatus & BLOCK_VALID_MASK, BLOCK_VALID_TREE) | (pindexIter->nStatus & ~BLOCK_VALID_MASK); + // Remove have-data flags. + pindexIter->nStatus &= ~(BLOCK_HAVE_DATA | BLOCK_HAVE_UNDO); + // Remove storage location. + pindexIter->nFile = 0; + pindexIter->nDataPos = 0; + pindexIter->nUndoPos = 0; + // Remove various other things + pindexIter->nTx = 0; + pindexIter->nChainTx = 0; + pindexIter->nSequenceId = 0; + // Make sure it gets written. + setDirtyBlockIndex.insert(pindexIter); + // Update indexes + setBlockIndexCandidates.erase(pindexIter); + std::pair<std::multimap<CBlockIndex*, CBlockIndex*>::iterator, std::multimap<CBlockIndex*, CBlockIndex*>::iterator> ret = mapBlocksUnlinked.equal_range(pindexIter->pprev); + while (ret.first != ret.second) { + if (ret.first->second == pindexIter) { + mapBlocksUnlinked.erase(ret.first++); + } else { + ++ret.first; + } + } + } else if (pindexIter->IsValid(BLOCK_VALID_TRANSACTIONS) && pindexIter->nChainTx) { + setBlockIndexCandidates.insert(pindexIter); + } + } + + PruneBlockIndexCandidates(); + + CheckBlockIndex(params.GetConsensus()); + + if (!FlushStateToDisk(state, FLUSH_STATE_ALWAYS)) { + return false; + } + + return true; +} + void UnloadBlockIndex() { LOCK(cs_main); @@ -4159,7 +4411,7 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB int nLoaded = 0; try { // This takes over fileIn and calls fclose() on it in the CBufferedFile destructor - CBufferedFile blkdat(fileIn, 2*MAX_BLOCK_SIZE, MAX_BLOCK_SIZE+8, SER_DISK, CLIENT_VERSION); + CBufferedFile blkdat(fileIn, 2*MAX_BLOCK_SERIALIZED_SIZE, MAX_BLOCK_SERIALIZED_SIZE+8, SER_DISK, CLIENT_VERSION); uint64_t nRewind = blkdat.GetPos(); while (!blkdat.eof()) { boost::this_thread::interruption_point(); @@ -4178,7 +4430,7 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB continue; // read size blkdat >> nSize; - if (nSize < 80 || nSize > MAX_BLOCK_SIZE) + if (nSize < 80 || nSize > MAX_BLOCK_SERIALIZED_SIZE) continue; } catch (const std::exception&) { // no valid block header found; don't complain @@ -4508,6 +4760,7 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main) switch (inv.type) { case MSG_TX: + case MSG_WITNESS_TX: { assert(recentRejects); if (chainActive.Tip()->GetBlockHash() != hashRecentRejectsChainTip) @@ -4528,6 +4781,7 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main) pcoinsTip->HaveCoinsInCache(inv.hash); } case MSG_BLOCK: + case MSG_WITNESS_BLOCK: return mapBlockIndex.count(inv.hash); } // Don't know what it is, just say we already got one @@ -4552,7 +4806,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam boost::this_thread::interruption_point(); it++; - if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK) + if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) { bool send = false; BlockMap::iterator mi = mapBlockIndex.find(inv.hash); @@ -4593,6 +4847,8 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam if (!ReadBlockFromDisk(block, (*mi).second, consensusParams)) assert(!"cannot load block from disk"); if (inv.type == MSG_BLOCK) + pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); + else if (inv.type == MSG_WITNESS_BLOCK) pfrom->PushMessage(NetMsgType::BLOCK, block); else if (inv.type == MSG_FILTERED_BLOCK) { @@ -4609,7 +4865,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // however we MUST always provide at least what the remote peer needs typedef std::pair<unsigned int, uint256> PairType; BOOST_FOREACH(PairType& pair, merkleBlock.vMatchedTxn) - pfrom->PushMessage(NetMsgType::TX, block.vtx[pair.first]); + pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, block.vtx[pair.first]); } // else // no response @@ -4622,9 +4878,9 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // instead we respond with the full, non-compact block. if (mi->second->nHeight >= chainActive.Height() - 10) { CBlockHeaderAndShortTxIDs cmpctblock(block); - pfrom->PushMessage(NetMsgType::CMPCTBLOCK, cmpctblock); + pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock); } else - pfrom->PushMessage(NetMsgType::BLOCK, block); + pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); } // Trigger the peer node to send a getblocks request for the next batch of inventory @@ -4640,20 +4896,20 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam } } } - else if (inv.type == MSG_TX) + else if (inv.type == MSG_TX || inv.type == MSG_WITNESS_TX) { // Send stream from relay memory bool push = false; auto mi = mapRelay.find(inv.hash); if (mi != mapRelay.end()) { - pfrom->PushMessage(NetMsgType::TX, *mi->second); + pfrom->PushMessageWithFlag(inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *mi->second); push = true; } else if (pfrom->timeLastMempoolReq) { auto txinfo = mempool.info(inv.hash); // To protect privacy, do not answer getdata using the mempool when // that TX couldn't have been INVed in reply to a MEMPOOL request. if (txinfo.tx && txinfo.nTime <= pfrom->timeLastMempoolReq) { - pfrom->PushMessage(NetMsgType::TX, *txinfo.tx); + pfrom->PushMessageWithFlag(inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *txinfo.tx); push = true; } } @@ -4665,7 +4921,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // Track requests for our stuff. GetMainSignals().Inventory(inv.hash); - if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK) + if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) break; } } @@ -4684,6 +4940,14 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam } } +uint32_t GetFetchFlags(CNode* pfrom, CBlockIndex* pprev, const Consensus::Params& chainparams) { + uint32_t nFetchFlags = 0; + if (IsWitnessEnabled(pprev, chainparams) && State(pfrom->GetId())->fHaveWitness) { + nFetchFlags |= MSG_WITNESS_FLAG; + } + return nFetchFlags; +} + bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams) { LogPrint("net", "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->id); @@ -4790,6 +5054,12 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, pfrom->fClient = !(pfrom->nServices & NODE_NETWORK); + if((pfrom->nServices & NODE_WITNESS)) + { + LOCK(cs_main); + State(pfrom->GetId())->fHaveWitness = true; + } + // Potentially mark this peer as a preferred download peer. { LOCK(cs_main); @@ -4991,17 +5261,23 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, LOCK(cs_main); + uint32_t nFetchFlags = GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()); + std::vector<CInv> vToFetch; for (unsigned int nInv = 0; nInv < vInv.size(); nInv++) { - const CInv &inv = vInv[nInv]; + CInv &inv = vInv[nInv]; boost::this_thread::interruption_point(); bool fAlreadyHave = AlreadyHave(inv); LogPrint("net", "got inv: %s %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id); + if (inv.type == MSG_TX) { + inv.type |= nFetchFlags; + } + if (inv.type == MSG_BLOCK) { UpdateBlockAvailability(pfrom->GetId(), inv.hash); if (!fAlreadyHave && !fImporting && !fReindex && !mapBlocksInFlight.count(inv.hash)) { @@ -5016,8 +5292,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, pfrom->PushMessage(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash); CNodeState *nodestate = State(pfrom->GetId()); if (CanDirectFetch(chainparams.GetConsensus()) && - nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) { - if (nodestate->fProvidesHeaderAndIDs) + nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER && + (!IsWitnessEnabled(chainActive.Tip(), chainparams.GetConsensus()) || State(pfrom->GetId())->fHaveWitness)) { + inv.type |= nFetchFlags; + if (nodestate->fProvidesHeaderAndIDs && !(nLocalServices & NODE_WITNESS)) vToFetch.push_back(CInv(MSG_CMPCT_BLOCK, inv.hash)); else vToFetch.push_back(inv); @@ -5146,7 +5424,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } resp.txn[i] = block.vtx[req.indexes[i]]; } - pfrom->PushMessage(NetMsgType::BLOCKTXN, resp); + pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCKTXN, resp); } @@ -5273,7 +5551,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, else if (!fMissingInputs2) { int nDos = 0; - if (stateDummy.IsInvalid(nDos) && nDos > 0) + if (stateDummy.IsInvalid(nDos) && nDos > 0 && (!state.CorruptionPossible() || State(fromPeer)->fHaveWitness)) { // Punish peer that gave us an invalid orphan tx Misbehaving(fromPeer, nDos); @@ -5284,8 +5562,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Probably non-standard or insufficient fee/priority LogPrint("mempool", " removed orphan tx %s\n", orphanHash.ToString()); vEraseQueue.push_back(orphanHash); - assert(recentRejects); - recentRejects->insert(orphanHash); + if (!stateDummy.CorruptionPossible()) { + assert(recentRejects); + recentRejects->insert(orphanHash); + } } mempool.check(pcoinsTip); } @@ -5320,8 +5600,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, LogPrint("mempool", "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString()); } } else { - assert(recentRejects); - recentRejects->insert(tx.GetHash()); + if (!state.CorruptionPossible()) { + assert(recentRejects); + recentRejects->insert(tx.GetHash()); + } if (pfrom->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { // Always relay transactions received from whitelisted peers, even @@ -5350,8 +5632,11 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P pfrom->PushMessage(NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash); - if (nDoS > 0) + if (nDoS > 0 && (!state.CorruptionPossible() || State(pfrom->id)->fHaveWitness)) { + // When a non-witness-supporting peer gives us a transaction that would + // be accepted if witness validation was off, we can't blame them for it. Misbehaving(pfrom->GetId(), nDoS); + } } FlushStateToDisk(state, FLUSH_STATE_PERIODIC); } @@ -5595,7 +5880,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Calculate all the blocks we'd need to switch to pindexLast, up to a limit. while (pindexWalk && !chainActive.Contains(pindexWalk) && vToFetch.size() <= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { if (!(pindexWalk->nStatus & BLOCK_HAVE_DATA) && - !mapBlocksInFlight.count(pindexWalk->GetBlockHash())) { + !mapBlocksInFlight.count(pindexWalk->GetBlockHash()) && + (!IsWitnessEnabled(pindexWalk->pprev, chainparams.GetConsensus()) || State(pfrom->GetId())->fHaveWitness)) { // We don't have this block, and it's not yet in flight. vToFetch.push_back(pindexWalk); } @@ -5617,7 +5903,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Can't download any more from this peer break; } - vGetData.push_back(CInv(MSG_BLOCK, pindex->GetBlockHash())); + uint32_t nFetchFlags = GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()); + vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex); LogPrint("net", "Requesting block %s from peer=%d\n", pindex->GetBlockHash().ToString(), pfrom->id); @@ -5627,7 +5914,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, pindexLast->GetBlockHash().ToString(), pindexLast->nHeight); } if (vGetData.size() > 0) { - if (nodestate->fProvidesHeaderAndIDs && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN)) { + if (nodestate->fProvidesHeaderAndIDs && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN) && !(nLocalServices & NODE_WITNESS)) { // We seem to be rather well-synced, so it appears pfrom was the first to provide us // with this block! Let's get them to announce using compact blocks in the future. MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom); @@ -6463,10 +6750,13 @@ bool SendMessages(CNode* pto) NodeId staller = -1; FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller); BOOST_FOREACH(CBlockIndex *pindex, vToDownload) { - vGetData.push_back(CInv(MSG_BLOCK, pindex->GetBlockHash())); - MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex); - LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(), - pindex->nHeight, pto->id); + if (State(pto->GetId())->fHaveWitness || !IsWitnessEnabled(pindex->pprev, consensusParams)) { + uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams); + vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); + MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex); + LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(), + pindex->nHeight, pto->id); + } } if (state.nBlocksInFlight == 0 && staller != -1) { if (State(staller)->nStallingSince == 0) { diff --git a/src/main.h b/src/main.h index f004a29bb1..2ffe5770dc 100644 --- a/src/main.h +++ b/src/main.h @@ -152,6 +152,7 @@ typedef boost::unordered_map<uint256, CBlockIndex*, BlockHasher> BlockMap; extern BlockMap mapBlockIndex; extern uint64_t nLastBlockTx; extern uint64_t nLastBlockSize; +extern uint64_t nLastBlockCost; extern const std::string strMessageMagic; extern CWaitableCriticalSection csBestBlock; extern CConditionVariable cvBlockChange; @@ -332,6 +333,14 @@ unsigned int GetLegacySigOpCount(const CTransaction& tx); */ unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& mapInputs); +/** + * Compute total signature operation cost of a transaction. + * @param[in] tx Transaction for which we are computing the cost + * @param[in] inputs Map of previous transactions that have outputs we're spending + * @param[out] flags Script verification flags + * @return Total signature operation cost of tx + */ +int64_t GetTransactionSigOpCost(const CTransaction& tx, const CCoinsViewCache& inputs, int flags); /** * Check whether all inputs of this transaction are valid (no double spends, scripts & sigs, amounts) @@ -394,6 +403,7 @@ class CScriptCheck { private: CScript scriptPubKey; + CAmount amount; const CTransaction *ptxTo; unsigned int nIn; unsigned int nFlags; @@ -401,9 +411,9 @@ private: ScriptError error; public: - CScriptCheck(): ptxTo(0), nIn(0), nFlags(0), cacheStore(false), error(SCRIPT_ERR_UNKNOWN_ERROR) {} + CScriptCheck(): amount(0), ptxTo(0), nIn(0), nFlags(0), cacheStore(false), error(SCRIPT_ERR_UNKNOWN_ERROR) {} CScriptCheck(const CCoins& txFromIn, const CTransaction& txToIn, unsigned int nInIn, unsigned int nFlagsIn, bool cacheIn) : - scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey), + scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey), amount(txFromIn.vout[txToIn.vin[nInIn].prevout.n].nValue), ptxTo(&txToIn), nIn(nInIn), nFlags(nFlagsIn), cacheStore(cacheIn), error(SCRIPT_ERR_UNKNOWN_ERROR) { } bool operator()(); @@ -411,6 +421,7 @@ public: void swap(CScriptCheck &check) { scriptPubKey.swap(check.scriptPubKey); std::swap(ptxTo, check.ptxTo); + std::swap(amount, check.amount); std::swap(nIn, check.nIn); std::swap(nFlags, check.nFlags); std::swap(cacheStore, check.cacheStore); @@ -453,6 +464,18 @@ bool DisconnectBlock(const CBlock& block, CValidationState& state, const CBlockI /** Check a block is completely valid from start to finish (only works on top of our current best block, with cs_main held) */ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams, const CBlock& block, CBlockIndex* pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true); +/** Check whether witness commitments are required for block. */ +bool IsWitnessEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params); + +/** When there are blocks in the active chain with missing data, rewind the chainstate and remove them from the block index */ +bool RewindBlockIndex(const CChainParams& params); + +/** Update uncommitted block structures (currently: only the witness nonce). This is safe for submitted blocks. */ +void UpdateUncommittedBlockStructures(CBlock& block, const CBlockIndex* pindexPrev, const Consensus::Params& consensusParams); + +/** Produce the necessary coinbase commitment for a block (modifies the hash, don't call for mined blocks). */ +std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBlockIndex* pindexPrev, const Consensus::Params& consensusParams); + /** RAII wrapper for VerifyDB: Verify consistency of the block and coin databases */ class CVerifyDB { public: diff --git a/src/merkleblock.cpp b/src/merkleblock.cpp index dca4973cc4..31332526a9 100644 --- a/src/merkleblock.cpp +++ b/src/merkleblock.cpp @@ -155,7 +155,7 @@ uint256 CPartialMerkleTree::ExtractMatches(std::vector<uint256> &vMatch, std::ve if (nTransactions == 0) return uint256(); // check for excessively high numbers of transactions - if (nTransactions > MAX_BLOCK_SIZE / 60) // 60 is the lower bound for the size of a serialized CTransaction + if (nTransactions > MAX_BLOCK_BASE_SIZE / 60) // 60 is the lower bound for the size of a serialized CTransaction return uint256(); // there can never be more hashes provided than one for every txid if (vHash.size() > nTransactions) diff --git a/src/miner.cpp b/src/miner.cpp index 989ad11a26..cfc2dae56e 100644 --- a/src/miner.cpp +++ b/src/miner.cpp @@ -45,6 +45,7 @@ using namespace std; uint64_t nLastBlockTx = 0; uint64_t nLastBlockSize = 0; +uint64_t nLastBlockCost = 0; class ScoreCompare { @@ -75,15 +76,36 @@ int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParam BlockAssembler::BlockAssembler(const CChainParams& _chainparams) : chainparams(_chainparams) { - // Largest block you're willing to create: - nBlockMaxSize = GetArg("-blockmaxsize", DEFAULT_BLOCK_MAX_SIZE); - // Limit to between 1K and MAX_BLOCK_SIZE-1K for sanity: - nBlockMaxSize = std::max((unsigned int)1000, std::min((unsigned int)(MAX_BLOCK_SIZE-1000), nBlockMaxSize)); + // Block resource limits + // If neither -blockmaxsize or -blockmaxcost is given, limit to DEFAULT_BLOCK_MAX_* + // If only one is given, only restrict the specified resource. + // If both are given, restrict both. + nBlockMaxCost = DEFAULT_BLOCK_MAX_COST; + nBlockMaxSize = DEFAULT_BLOCK_MAX_SIZE; + bool fCostSet = false; + if (mapArgs.count("-blockmaxcost")) { + nBlockMaxCost = GetArg("-blockmaxcost", DEFAULT_BLOCK_MAX_COST); + nBlockMaxSize = MAX_BLOCK_SERIALIZED_SIZE; + fCostSet = true; + } + if (mapArgs.count("-blockmaxsize")) { + nBlockMaxSize = GetArg("-blockmaxsize", DEFAULT_BLOCK_MAX_SIZE); + if (!fCostSet) { + nBlockMaxCost = nBlockMaxSize * WITNESS_SCALE_FACTOR; + } + } + // Limit cost to between 4K and MAX_BLOCK_COST-4K for sanity: + nBlockMaxCost = std::max((unsigned int)4000, std::min((unsigned int)(MAX_BLOCK_COST-4000), nBlockMaxCost)); + // Limit size to between 1K and MAX_BLOCK_SERIALIZED_SIZE-1K for sanity: + nBlockMaxSize = std::max((unsigned int)1000, std::min((unsigned int)(MAX_BLOCK_SERIALIZED_SIZE-1000), nBlockMaxSize)); // Minimum block size you want to create; block will be filled with free transactions // until there are no more or the block reaches this size: nBlockMinSize = GetArg("-blockminsize", DEFAULT_BLOCK_MIN_SIZE); nBlockMinSize = std::min(nBlockMaxSize, nBlockMinSize); + + // Whether we need to account for byte usage (in addition to cost usage) + fNeedSizeAccounting = (nBlockMaxSize < MAX_BLOCK_SERIALIZED_SIZE-1000) || (nBlockMinSize > 0); } void BlockAssembler::resetBlock() @@ -92,7 +114,9 @@ void BlockAssembler::resetBlock() // Reserve space for coinbase tx nBlockSize = 1000; - nBlockSigOps = 100; + nBlockCost = 4000; + nBlockSigOpsCost = 400; + fIncludeWitness = false; // These counters do not include coinbase tx nBlockTx = 0; @@ -115,7 +139,7 @@ CBlockTemplate* BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn) // Add dummy coinbase tx as first transaction pblock->vtx.push_back(CTransaction()); pblocktemplate->vTxFees.push_back(-1); // updated at end - pblocktemplate->vTxSigOps.push_back(-1); // updated at end + pblocktemplate->vTxSigOpsCost.push_back(-1); // updated at end LOCK2(cs_main, mempool.cs); CBlockIndex* pindexPrev = chainActive.Tip(); @@ -134,12 +158,27 @@ CBlockTemplate* BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn) ? nMedianTimePast : pblock->GetBlockTime(); + // Decide whether to include witness transactions + // This is only needed in case the witness softfork activation is reverted + // (which would require a very deep reorganization) or when + // -promiscuousmempoolflags is used. + // TODO: replace this with a call to main to assess validity of a mempool + // transaction (which in most cases can be a no-op). + fIncludeWitness = IsWitnessEnabled(pindexPrev, chainparams.GetConsensus()); + addPriorityTxs(); - addPackageTxs(); + if (fNeedSizeAccounting) { + // addPackageTxs (the CPFP-based algorithm) cannot deal with size based + // accounting, so fall back to the old algorithm. + addScoreTxs(); + } else { + addPackageTxs(); + } nLastBlockTx = nBlockTx; nLastBlockSize = nBlockSize; - LogPrintf("CreateNewBlock(): total size %u txs: %u fees: %ld sigops %d\n", nBlockSize, nBlockTx, nFees, nBlockSigOps); + nLastBlockCost = nBlockCost; + LogPrintf("CreateNewBlock(): total size %u txs: %u fees: %ld sigops %d\n", nBlockSize, nBlockTx, nFees, nBlockSigOpsCost); // Create coinbase transaction. CMutableTransaction coinbaseTx; @@ -150,6 +189,7 @@ CBlockTemplate* BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn) coinbaseTx.vout[0].nValue = nFees + GetBlockSubsidy(nHeight, chainparams.GetConsensus()); coinbaseTx.vin[0].scriptSig = CScript() << nHeight << OP_0; pblock->vtx[0] = coinbaseTx; + pblocktemplate->vchCoinbaseCommitment = GenerateCoinbaseCommitment(*pblock, pindexPrev, chainparams.GetConsensus()); pblocktemplate->vTxFees[0] = -nFees; // Fill in header @@ -157,7 +197,7 @@ CBlockTemplate* BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn) UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev); pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, chainparams.GetConsensus()); pblock->nNonce = 0; - pblocktemplate->vTxSigOps[0] = GetLegacySigOpCount(pblock->vtx[0]); + pblocktemplate->vTxSigOpsCost[0] = GetLegacySigOpCount(pblock->vtx[0]); CValidationState state; if (!TestBlockValidity(state, chainparams, *pblock, pindexPrev, false, false)) { @@ -191,11 +231,12 @@ void BlockAssembler::onlyUnconfirmed(CTxMemPool::setEntries& testSet) } } -bool BlockAssembler::TestPackage(uint64_t packageSize, unsigned int packageSigOps) +bool BlockAssembler::TestPackage(uint64_t packageSize, int64_t packageSigOpsCost) { - if (nBlockSize + packageSize >= nBlockMaxSize) + // TODO: switch to cost-based accounting for packages instead of vsize-based accounting. + if (nBlockCost + WITNESS_SCALE_FACTOR * packageSize >= nBlockMaxCost) return false; - if (nBlockSigOps + packageSigOps >= MAX_BLOCK_SIGOPS) + if (nBlockSigOpsCost + packageSigOpsCost >= MAX_BLOCK_SIGOPS_COST) return false; return true; } @@ -213,26 +254,39 @@ bool BlockAssembler::TestPackageFinality(const CTxMemPool::setEntries& package) bool BlockAssembler::TestForBlock(CTxMemPool::txiter iter) { - if (nBlockSize + iter->GetTxSize() >= nBlockMaxSize) { + if (nBlockCost + iter->GetTxCost() >= nBlockMaxCost) { // If the block is so close to full that no more txs will fit // or if we've tried more than 50 times to fill remaining space // then flag that the block is finished - if (nBlockSize > nBlockMaxSize - 100 || lastFewTxs > 50) { + if (nBlockCost > nBlockMaxCost - 400 || lastFewTxs > 50) { blockFinished = true; return false; } - // Once we're within 1000 bytes of a full block, only look at 50 more txs + // Once we're within 4000 cost of a full block, only look at 50 more txs // to try to fill the remaining space. - if (nBlockSize > nBlockMaxSize - 1000) { + if (nBlockCost > nBlockMaxCost - 4000) { lastFewTxs++; } return false; } - if (nBlockSigOps + iter->GetSigOpCount() >= MAX_BLOCK_SIGOPS) { + if (fNeedSizeAccounting) { + if (nBlockSize + ::GetSerializeSize(iter->GetTx(), SER_NETWORK, PROTOCOL_VERSION) >= nBlockMaxSize) { + if (nBlockSize > nBlockMaxSize - 100 || lastFewTxs > 50) { + blockFinished = true; + return false; + } + if (nBlockSize > nBlockMaxSize - 1000) { + lastFewTxs++; + } + return false; + } + } + + if (nBlockSigOpsCost + iter->GetSigOpCost() >= MAX_BLOCK_SIGOPS_COST) { // If the block has room for no more sig ops then // flag that the block is finished - if (nBlockSigOps > MAX_BLOCK_SIGOPS - 2) { + if (nBlockSigOpsCost > MAX_BLOCK_SIGOPS_COST - 8) { blockFinished = true; return false; } @@ -254,10 +308,13 @@ void BlockAssembler::AddToBlock(CTxMemPool::txiter iter) { pblock->vtx.push_back(iter->GetTx()); pblocktemplate->vTxFees.push_back(iter->GetFee()); - pblocktemplate->vTxSigOps.push_back(iter->GetSigOpCount()); - nBlockSize += iter->GetTxSize(); + pblocktemplate->vTxSigOpsCost.push_back(iter->GetSigOpCost()); + if (fNeedSizeAccounting) { + nBlockSize += ::GetSerializeSize(iter->GetTx(), SER_NETWORK, PROTOCOL_VERSION); + } + nBlockCost += iter->GetTxCost(); ++nBlockTx; - nBlockSigOps += iter->GetSigOpCount(); + nBlockSigOpsCost += iter->GetSigOpCost(); nFees += iter->GetFee(); inBlock.insert(iter); @@ -299,6 +356,10 @@ void BlockAssembler::addScoreTxs() continue; } + // cannot accept witness transactions into a non-witness block + if (!fIncludeWitness && !iter->GetTx().wit.IsNull()) + continue; + // If tx is dependent on other mempool txs which haven't yet been included // then put it in the waitSet if (isStillDependent(iter)) { @@ -344,7 +405,7 @@ void BlockAssembler::UpdatePackagesForAdded(const CTxMemPool::setEntries& alread CTxMemPoolModifiedEntry modEntry(desc); modEntry.nSizeWithAncestors -= it->GetTxSize(); modEntry.nModFeesWithAncestors -= it->GetModifiedFee(); - modEntry.nSigOpCountWithAncestors -= it->GetSigOpCount(); + modEntry.nSigOpCostWithAncestors -= it->GetSigOpCost(); mapModifiedTx.insert(modEntry); } else { mapModifiedTx.modify(mit, update_for_parent_inclusion(it)); @@ -446,19 +507,19 @@ void BlockAssembler::addPackageTxs() uint64_t packageSize = iter->GetSizeWithAncestors(); CAmount packageFees = iter->GetModFeesWithAncestors(); - unsigned int packageSigOps = iter->GetSigOpCountWithAncestors(); + int64_t packageSigOpsCost = iter->GetSigOpCostWithAncestors(); if (fUsingModified) { packageSize = modit->nSizeWithAncestors; packageFees = modit->nModFeesWithAncestors; - packageSigOps = modit->nSigOpCountWithAncestors; + packageSigOpsCost = modit->nSigOpCostWithAncestors; } - if (packageFees < ::minRelayTxFee.GetFee(packageSize) && nBlockSize >= nBlockMinSize) { + if (packageFees < ::minRelayTxFee.GetFee(packageSize)) { // Everything else we might consider has a lower fee rate return; } - if (!TestPackage(packageSize, packageSigOps)) { + if (!TestPackage(packageSize, packageSigOpsCost)) { if (fUsingModified) { // Since we always look at the best entry in mapModifiedTx, // we must erase failed entries so that we can consider the @@ -512,6 +573,8 @@ void BlockAssembler::addPriorityTxs() return; } + fNeedSizeAccounting = true; + // This vector will be sorted into a priority queue: vector<TxCoinAgePriority> vecPriority; TxCoinAgePriorityCompare pricomparer; @@ -543,6 +606,10 @@ void BlockAssembler::addPriorityTxs() continue; } + // cannot accept witness transactions into a non-witness block + if (!fIncludeWitness && !iter->GetTx().wit.IsNull()) + continue; + // If tx is dependent on other mempool txs which haven't yet been included // then put it in the waitSet if (isStillDependent(iter)) { diff --git a/src/miner.h b/src/miner.h index a9fea85304..b303a8fa3c 100644 --- a/src/miner.h +++ b/src/miner.h @@ -28,7 +28,8 @@ struct CBlockTemplate { CBlock block; std::vector<CAmount> vTxFees; - std::vector<int64_t> vTxSigOps; + std::vector<int64_t> vTxSigOpsCost; + std::vector<unsigned char> vchCoinbaseCommitment; }; // Container for tracking updates to ancestor feerate as we include (parent) @@ -39,13 +40,13 @@ struct CTxMemPoolModifiedEntry { iter = entry; nSizeWithAncestors = entry->GetSizeWithAncestors(); nModFeesWithAncestors = entry->GetModFeesWithAncestors(); - nSigOpCountWithAncestors = entry->GetSigOpCountWithAncestors(); + nSigOpCostWithAncestors = entry->GetSigOpCostWithAncestors(); } CTxMemPool::txiter iter; uint64_t nSizeWithAncestors; CAmount nModFeesWithAncestors; - unsigned int nSigOpCountWithAncestors; + int64_t nSigOpCostWithAncestors; }; /** Comparator for CTxMemPool::txiter objects. @@ -123,7 +124,7 @@ struct update_for_parent_inclusion { e.nModFeesWithAncestors -= iter->GetFee(); e.nSizeWithAncestors -= iter->GetTxSize(); - e.nSigOpCountWithAncestors -= iter->GetSigOpCount(); + e.nSigOpCostWithAncestors -= iter->GetSigOpCost(); } CTxMemPool::txiter iter; @@ -139,12 +140,15 @@ private: CBlock* pblock; // Configuration parameters for the block size - unsigned int nBlockMaxSize, nBlockMinSize; + bool fIncludeWitness; + unsigned int nBlockMaxCost, nBlockMaxSize, nBlockMinSize; + bool fNeedSizeAccounting; // Information on the current status of the block + uint64_t nBlockCost; uint64_t nBlockSize; uint64_t nBlockTx; - unsigned int nBlockSigOps; + uint64_t nBlockSigOpsCost; CAmount nFees; CTxMemPool::setEntries inBlock; @@ -187,7 +191,7 @@ private: /** Remove confirmed (inBlock) entries from given set */ void onlyUnconfirmed(CTxMemPool::setEntries& testSet); /** Test if a new package would "fit" in the block */ - bool TestPackage(uint64_t packageSize, unsigned int packageSigOps); + bool TestPackage(uint64_t packageSize, int64_t packageSigOpsCost); /** Test if a set of transactions are all final */ bool TestPackageFinality(const CTxMemPool::setEntries& package); /** Return true if given transaction from mapTx has already been evaluated, diff --git a/src/net.cpp b/src/net.cpp index 336163a896..4cbc43e4d8 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -72,7 +72,7 @@ namespace { const static std::string NET_MESSAGE_COMMAND_OTHER = "*other*"; /** Services this node implementation cares about */ -static const ServiceFlags nRelevantServices = NODE_NETWORK; +ServiceFlags nRelevantServices = NODE_NETWORK; // // Global state variables @@ -1676,6 +1676,10 @@ void ThreadOpenConnections() if (nANow - addr.nLastTry < 600 && nTries < 30) continue; + // only consider nodes missing relevant services after 40 failed attemps + if ((addr.nServices & nRelevantServices) != nRelevantServices && nTries < 40) + continue; + // do not allow non-default ports, unless after 50 invalid addresses selected already if (addr.GetPort() != Params().GetDefaultPort() && nTries < 50) continue; @@ -2178,7 +2182,7 @@ void CNode::RecordBytesSent(uint64_t bytes) void CNode::SetMaxOutboundTarget(uint64_t limit) { LOCK(cs_totalBytesSent); - uint64_t recommendedMinimum = (nMaxOutboundTimeframe / 600) * MAX_BLOCK_SIZE; + uint64_t recommendedMinimum = (nMaxOutboundTimeframe / 600) * MAX_BLOCK_SERIALIZED_SIZE; nMaxOutboundLimit = limit; if (limit > 0 && limit < recommendedMinimum) @@ -2233,7 +2237,7 @@ bool CNode::OutboundTargetReached(bool historicalBlockServingLimit) { // keep a large enough buffer to at least relay each block once uint64_t timeLeftInCycle = GetMaxOutboundTimeLeftInCycle(); - uint64_t buffer = timeLeftInCycle / 600 * MAX_BLOCK_SIZE; + uint64_t buffer = timeLeftInCycle / 600 * MAX_BLOCK_SERIALIZED_SIZE; if (buffer >= nMaxOutboundLimit || nMaxOutboundTotalBytesSentInCycle >= nMaxOutboundLimit - buffer) return true; } @@ -45,8 +45,8 @@ static const int TIMEOUT_INTERVAL = 20 * 60; static const unsigned int MAX_INV_SZ = 50000; /** The maximum number of new addresses to accumulate before announcing. */ static const unsigned int MAX_ADDR_TO_SEND = 1000; -/** Maximum length of incoming protocol messages (no message over 2 MiB is currently acceptable). */ -static const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 2 * 1024 * 1024; +/** Maximum length of incoming protocol messages (no message over 4 MB is currently acceptable). */ +static const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 4 * 1000 * 1000; /** Maximum length of strSubVer in `version` message */ static const unsigned int MAX_SUBVERSION_LENGTH = 256; /** -listen default */ @@ -156,6 +156,7 @@ CAddress GetLocalAddress(const CNetAddr *paddrPeer = NULL); extern bool fDiscover; extern bool fListen; extern ServiceFlags nLocalServices; +extern ServiceFlags nRelevantServices; extern bool fRelayTxes; extern uint64_t nLocalHostNonce; extern CAddrMan addrman; @@ -598,6 +599,23 @@ public: } } + /** Send a message containing a1, serialized with flag flag. */ + template<typename T1> + void PushMessageWithFlag(int flag, const char* pszCommand, const T1& a1) + { + try + { + BeginMessage(pszCommand); + WithOrVersion(&ssSend, flag) << a1; + EndMessage(pszCommand); + } + catch (...) + { + AbortMessage(); + throw; + } + } + template<typename T1, typename T2> void PushMessage(const char* pszCommand, const T1& a1, const T2& a2) { diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp index d1a15451dc..f2148bfe10 100644 --- a/src/policy/policy.cpp +++ b/src/policy/policy.cpp @@ -64,8 +64,8 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason) // almost as much to process as they cost the sender in fees, because // computing signature hashes is O(ninputs*txsize). Limiting transactions // to MAX_STANDARD_TX_SIZE mitigates CPU exhaustion attacks. - unsigned int sz = tx.GetSerializeSize(SER_NETWORK, CTransaction::CURRENT_VERSION); - if (sz >= MAX_STANDARD_TX_SIZE) { + unsigned int sz = GetTransactionCost(tx); + if (sz >= MAX_STANDARD_TX_COST) { reason = "tx-size"; return false; } @@ -137,7 +137,7 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs) { std::vector<std::vector<unsigned char> > stack; // convert the scriptSig into a stack, so we can inspect the redeemScript - if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), 0)) + if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), SIGVERSION_BASE)) return false; if (stack.empty()) return false; @@ -150,3 +150,13 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs) return true; } + +int64_t GetVirtualTransactionSize(int64_t nCost) +{ + return (nCost + WITNESS_SCALE_FACTOR - 1) / WITNESS_SCALE_FACTOR; +} + +int64_t GetVirtualTransactionSize(const CTransaction& tx) +{ + return GetVirtualTransactionSize(GetTransactionCost(tx)); +} diff --git a/src/policy/policy.h b/src/policy/policy.h index 4f9354e36f..fefb562ff9 100644 --- a/src/policy/policy.h +++ b/src/policy/policy.h @@ -19,12 +19,14 @@ static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000; static const unsigned int DEFAULT_BLOCK_MIN_SIZE = 0; /** Default for -blockprioritysize, maximum space for zero/low-fee transactions **/ static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 0; +/** Default for -blockmaxcost, which control the range of block costs the mining code will create **/ +static const unsigned int DEFAULT_BLOCK_MAX_COST = 3000000; /** The maximum size for transactions we're willing to relay/mine */ -static const unsigned int MAX_STANDARD_TX_SIZE = 100000; +static const unsigned int MAX_STANDARD_TX_COST = 400000; /** Maximum number of signature check operations in an IsStandard() P2SH script */ static const unsigned int MAX_P2SH_SIGOPS = 15; /** The maximum number of sigops we're willing to relay/mine in a single tx */ -static const unsigned int MAX_STANDARD_TX_SIGOPS = MAX_BLOCK_SIGOPS/5; +static const unsigned int MAX_STANDARD_TX_SIGOPS_COST = MAX_BLOCK_SIGOPS_COST/5; /** Default for -maxmempool, maximum megabytes of mempool memory usage */ static const unsigned int DEFAULT_MAX_MEMPOOL_SIZE = 300; /** @@ -41,7 +43,9 @@ static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY SCRIPT_VERIFY_CLEANSTACK | SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY | SCRIPT_VERIFY_CHECKSEQUENCEVERIFY | - SCRIPT_VERIFY_LOW_S; + SCRIPT_VERIFY_LOW_S | + SCRIPT_VERIFY_WITNESS | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM; /** For convenience, standard but not mandatory verify flags. */ static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS; @@ -63,4 +67,8 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason); */ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs); +/** Compute the virtual transaction size (cost reinterpreted as bytes). */ +int64_t GetVirtualTransactionSize(int64_t nCost); +int64_t GetVirtualTransactionSize(const CTransaction& tx); + #endif // BITCOIN_POLICY_POLICY_H diff --git a/src/primitives/block.cpp b/src/primitives/block.cpp index 6fb33230a5..df900388f2 100644 --- a/src/primitives/block.cpp +++ b/src/primitives/block.cpp @@ -31,3 +31,12 @@ std::string CBlock::ToString() const } return s.str(); } + +int64_t GetBlockCost(const CBlock& block) +{ + // This implements the cost = (stripped_size * 4) + witness_size formula, + // using only serialization with and without witness data. As witness_size + // is equal to total_size - stripped_size, this formula is identical to: + // cost = (stripped_size * 3) + total_size. + return ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR - 1) + ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION); +} diff --git a/src/primitives/block.h b/src/primitives/block.h index 42276b2bc2..e2a309e63d 100644 --- a/src/primitives/block.h +++ b/src/primitives/block.h @@ -38,7 +38,6 @@ public: template <typename Stream, typename Operation> inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { READWRITE(this->nVersion); - nVersion = this->nVersion; READWRITE(hashPrevBlock); READWRITE(hashMerkleRoot); READWRITE(nTime); @@ -120,7 +119,6 @@ public: std::string ToString() const; }; - /** Describes a place in the block chain to another node such that if the * other node doesn't have the same branch, it can find a recent common trunk. * The further back it is, the further before the fork it may be. @@ -156,4 +154,7 @@ struct CBlockLocator } }; +/** Compute the consensus-critical block cost (see BIP 141). */ +int64_t GetBlockCost(const CBlock& tx); + #endif // BITCOIN_PRIMITIVES_BLOCK_H diff --git a/src/primitives/transaction.cpp b/src/primitives/transaction.cpp index 947f2e6a73..7f10409c05 100644 --- a/src/primitives/transaction.cpp +++ b/src/primitives/transaction.cpp @@ -60,21 +60,26 @@ std::string CTxOut::ToString() const } CMutableTransaction::CMutableTransaction() : nVersion(CTransaction::CURRENT_VERSION), nLockTime(0) {} -CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {} +CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), wit(tx.wit), nLockTime(tx.nLockTime) {} uint256 CMutableTransaction::GetHash() const { - return SerializeHash(*this); + return SerializeHash(*this, SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS); } void CTransaction::UpdateHash() const { - *const_cast<uint256*>(&hash) = SerializeHash(*this); + *const_cast<uint256*>(&hash) = SerializeHash(*this, SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS); +} + +uint256 CTransaction::GetWitnessHash() const +{ + return SerializeHash(*this, SER_GETHASH, 0); } CTransaction::CTransaction() : nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0) { } -CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) { +CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), wit(tx.wit), nLockTime(tx.nLockTime) { UpdateHash(); } @@ -82,6 +87,7 @@ CTransaction& CTransaction::operator=(const CTransaction &tx) { *const_cast<int*>(&nVersion) = tx.nVersion; *const_cast<std::vector<CTxIn>*>(&vin) = tx.vin; *const_cast<std::vector<CTxOut>*>(&vout) = tx.vout; + *const_cast<CTxWitness*>(&wit) = tx.wit; *const_cast<unsigned int*>(&nLockTime) = tx.nLockTime; *const_cast<uint256*>(&hash) = tx.hash; return *this; @@ -115,7 +121,7 @@ unsigned int CTransaction::CalculateModifiedSize(unsigned int nTxSize) const // Providing any more cleanup incentive than making additional inputs free would // risk encouraging people to create junk outputs to redeem later. if (nTxSize == 0) - nTxSize = ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION); + nTxSize = (GetTransactionCost(*this) + WITNESS_SCALE_FACTOR - 1) / WITNESS_SCALE_FACTOR; for (std::vector<CTxIn>::const_iterator it(vin.begin()); it != vin.end(); ++it) { unsigned int offset = 41U + std::min(110U, (unsigned int)it->scriptSig.size()); @@ -136,7 +142,14 @@ std::string CTransaction::ToString() const nLockTime); for (unsigned int i = 0; i < vin.size(); i++) str += " " + vin[i].ToString() + "\n"; + for (unsigned int i = 0; i < wit.vtxinwit.size(); i++) + str += " " + wit.vtxinwit[i].scriptWitness.ToString() + "\n"; for (unsigned int i = 0; i < vout.size(); i++) str += " " + vout[i].ToString() + "\n"; return str; } + +int64_t GetTransactionCost(const CTransaction& tx) +{ + return ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR -1) + ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION); +} diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h index 149816406a..e87ad90f0d 100644 --- a/src/primitives/transaction.h +++ b/src/primitives/transaction.h @@ -11,6 +11,10 @@ #include "serialize.h" #include "uint256.h" +static const int SERIALIZE_TRANSACTION_NO_WITNESS = 0x40000000; + +static const int WITNESS_SCALE_FACTOR = 4; + /** An outpoint - a combination of a transaction hash and an index n into its vout */ class COutPoint { @@ -164,15 +168,30 @@ public: // which has units satoshis-per-kilobyte. // If you'd pay more than 1/3 in fees // to spend something, then we consider it dust. - // A typical spendable txout is 34 bytes big, and will + // A typical spendable non-segwit txout is 34 bytes big, and will // need a CTxIn of at least 148 bytes to spend: // so dust is a spendable txout less than - // 546*minRelayTxFee/1000 (in satoshis) + // 546*minRelayTxFee/1000 (in satoshis). + // A typical spendable segwit txout is 31 bytes big, and will + // need a CTxIn of at least 67 bytes to spend: + // so dust is a spendable txout less than + // 294*minRelayTxFee/1000 (in satoshis). if (scriptPubKey.IsUnspendable()) return 0; - size_t nSize = GetSerializeSize(SER_DISK,0)+148u; - return 3*minRelayTxFee.GetFee(nSize); + size_t nSize = GetSerializeSize(SER_DISK, 0); + int witnessversion = 0; + std::vector<unsigned char> witnessprogram; + + if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) { + // sum the sizes of the parts of a transaction input + // with 75% segwit discount applied to the script size. + nSize += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4); + } else { + nSize += (32 + 4 + 1 + 107 + 4); // the 148 mentioned above + } + + return 3 * minRelayTxFee.GetFee(nSize); } bool IsDust(const CFeeRate &minRelayTxFee) const @@ -194,8 +213,137 @@ public: std::string ToString() const; }; +class CTxinWitness +{ +public: + CScriptWitness scriptWitness; + + ADD_SERIALIZE_METHODS; + + template <typename Stream, typename Operation> + inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) + { + READWRITE(scriptWitness.stack); + } + + bool IsNull() const { return scriptWitness.IsNull(); } + + CTxinWitness() { } +}; + +class CTxWitness +{ +public: + /** In case vtxinwit is missing, all entries are treated as if they were empty CTxInWitnesses */ + std::vector<CTxinWitness> vtxinwit; + + ADD_SERIALIZE_METHODS; + + bool IsEmpty() const { return vtxinwit.empty(); } + + bool IsNull() const + { + for (size_t n = 0; n < vtxinwit.size(); n++) { + if (!vtxinwit[n].IsNull()) { + return false; + } + } + return true; + } + + void SetNull() + { + vtxinwit.clear(); + } + + template <typename Stream, typename Operation> + inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) + { + for (size_t n = 0; n < vtxinwit.size(); n++) { + READWRITE(vtxinwit[n]); + } + if (IsNull()) { + /* It's illegal to encode a witness when all vtxinwit entries are empty. */ + throw std::ios_base::failure("Superfluous witness record"); + } + } +}; + struct CMutableTransaction; +/** + * Basic transaction serialization format: + * - int32_t nVersion + * - std::vector<CTxIn> vin + * - std::vector<CTxOut> vout + * - uint32_t nLockTime + * + * Extended transaction serialization format: + * - int32_t nVersion + * - unsigned char dummy = 0x00 + * - unsigned char flags (!= 0) + * - std::vector<CTxIn> vin + * - std::vector<CTxOut> vout + * - if (flags & 1): + * - CTxWitness wit; + * - uint32_t nLockTime + */ +template<typename Stream, typename Operation, typename TxType> +inline void SerializeTransaction(TxType& tx, Stream& s, Operation ser_action, int nType, int nVersion) { + READWRITE(*const_cast<int32_t*>(&tx.nVersion)); + unsigned char flags = 0; + if (ser_action.ForRead()) { + const_cast<std::vector<CTxIn>*>(&tx.vin)->clear(); + const_cast<std::vector<CTxOut>*>(&tx.vout)->clear(); + const_cast<CTxWitness*>(&tx.wit)->SetNull(); + /* Try to read the vin. In case the dummy is there, this will be read as an empty vector. */ + READWRITE(*const_cast<std::vector<CTxIn>*>(&tx.vin)); + if (tx.vin.size() == 0 && !(nVersion & SERIALIZE_TRANSACTION_NO_WITNESS)) { + /* We read a dummy or an empty vin. */ + READWRITE(flags); + if (flags != 0) { + READWRITE(*const_cast<std::vector<CTxIn>*>(&tx.vin)); + READWRITE(*const_cast<std::vector<CTxOut>*>(&tx.vout)); + } + } else { + /* We read a non-empty vin. Assume a normal vout follows. */ + READWRITE(*const_cast<std::vector<CTxOut>*>(&tx.vout)); + } + if ((flags & 1) && !(nVersion & SERIALIZE_TRANSACTION_NO_WITNESS)) { + /* The witness flag is present, and we support witnesses. */ + flags ^= 1; + const_cast<CTxWitness*>(&tx.wit)->vtxinwit.resize(tx.vin.size()); + READWRITE(tx.wit); + } + if (flags) { + /* Unknown flag in the serialization */ + throw std::ios_base::failure("Unknown transaction optional data"); + } + } else { + // Consistency check + assert(tx.wit.vtxinwit.size() <= tx.vin.size()); + if (!(nVersion & SERIALIZE_TRANSACTION_NO_WITNESS)) { + /* Check whether witnesses need to be serialized. */ + if (!tx.wit.IsNull()) { + flags |= 1; + } + } + if (flags) { + /* Use extended format in case witnesses are to be serialized. */ + std::vector<CTxIn> vinDummy; + READWRITE(vinDummy); + READWRITE(flags); + } + READWRITE(*const_cast<std::vector<CTxIn>*>(&tx.vin)); + READWRITE(*const_cast<std::vector<CTxOut>*>(&tx.vout)); + if (flags & 1) { + const_cast<CTxWitness*>(&tx.wit)->vtxinwit.resize(tx.vin.size()); + READWRITE(tx.wit); + } + } + READWRITE(*const_cast<uint32_t*>(&tx.nLockTime)); +} + /** The basic transaction that is broadcasted on the network and contained in * blocks. A transaction can contain multiple inputs and outputs. */ @@ -204,7 +352,6 @@ class CTransaction private: /** Memory only. */ const uint256 hash; - void UpdateHash() const; public: // Default transaction version. @@ -224,6 +371,7 @@ public: const int32_t nVersion; const std::vector<CTxIn> vin; const std::vector<CTxOut> vout; + CTxWitness wit; // Not const: can change without invalidating the txid cache const uint32_t nLockTime; /** Construct a CTransaction that qualifies as IsNull() */ @@ -238,13 +386,10 @@ public: template <typename Stream, typename Operation> inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { - READWRITE(*const_cast<int32_t*>(&this->nVersion)); - nVersion = this->nVersion; - READWRITE(*const_cast<std::vector<CTxIn>*>(&vin)); - READWRITE(*const_cast<std::vector<CTxOut>*>(&vout)); - READWRITE(*const_cast<uint32_t*>(&nLockTime)); - if (ser_action.ForRead()) + SerializeTransaction(*this, s, ser_action, nType, nVersion); + if (ser_action.ForRead()) { UpdateHash(); + } } bool IsNull() const { @@ -255,6 +400,9 @@ public: return hash; } + // Compute a hash that includes both transaction and witness data + uint256 GetWitnessHash() const; + // Return sum of txouts. CAmount GetValueOut() const; // GetValueIn() is a method on CCoinsViewCache, because @@ -282,6 +430,8 @@ public: } std::string ToString() const; + + void UpdateHash() const; }; /** A mutable version of CTransaction. */ @@ -290,6 +440,7 @@ struct CMutableTransaction int32_t nVersion; std::vector<CTxIn> vin; std::vector<CTxOut> vout; + CTxWitness wit; uint32_t nLockTime; CMutableTransaction(); @@ -299,11 +450,7 @@ struct CMutableTransaction template <typename Stream, typename Operation> inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { - READWRITE(this->nVersion); - nVersion = this->nVersion; - READWRITE(vin); - READWRITE(vout); - READWRITE(nLockTime); + SerializeTransaction(*this, s, ser_action, nType, nVersion); } /** Compute the hash of this CMutableTransaction. This is computed on the @@ -312,4 +459,7 @@ struct CMutableTransaction uint256 GetHash() const; }; +/** Compute the cost of a transaction, as defined by BIP 141 */ +int64_t GetTransactionCost(const CTransaction &tx); + #endif // BITCOIN_PRIMITIVES_TRANSACTION_H diff --git a/src/protocol.cpp b/src/protocol.cpp index 2f90fb764c..247c6c2120 100644 --- a/src/protocol.cpp +++ b/src/protocol.cpp @@ -41,15 +41,6 @@ const char *GETBLOCKTXN="getblocktxn"; const char *BLOCKTXN="blocktxn"; }; -static const char* ppszTypeName[] = -{ - "ERROR", // Should never occur - NetMsgType::TX, - NetMsgType::BLOCK, - "filtered block", // Should never occur - "compact block" // Should never occur -}; - /** All known message types. Keep this in the same order as the list of * messages above and in protocol.h. */ @@ -166,37 +157,26 @@ CInv::CInv(int typeIn, const uint256& hashIn) hash = hashIn; } -CInv::CInv(const std::string& strType, const uint256& hashIn) -{ - unsigned int i; - for (i = 1; i < ARRAYLEN(ppszTypeName); i++) - { - if (strType == ppszTypeName[i]) - { - type = i; - break; - } - } - if (i == ARRAYLEN(ppszTypeName)) - throw std::out_of_range(strprintf("CInv::CInv(string, uint256): unknown type '%s'", strType)); - hash = hashIn; -} - bool operator<(const CInv& a, const CInv& b) { return (a.type < b.type || (a.type == b.type && a.hash < b.hash)); } -bool CInv::IsKnownType() const +std::string CInv::GetCommand() const { - return (type >= 1 && type < (int)ARRAYLEN(ppszTypeName)); -} - -const char* CInv::GetCommand() const -{ - if (!IsKnownType()) + std::string cmd; + if (type & MSG_WITNESS_FLAG) + cmd.append("witness-"); + int masked = type & MSG_TYPE_MASK; + switch (masked) + { + case MSG_TX: return cmd.append(NetMsgType::TX); + case MSG_BLOCK: return cmd.append(NetMsgType::BLOCK); + case MSG_FILTERED_BLOCK: return cmd.append(NetMsgType::MERKLEBLOCK); + case MSG_CMPCT_BLOCK: return cmd.append(NetMsgType::CMPCTBLOCK); + default: throw std::out_of_range(strprintf("CInv::GetCommand(): type=%d unknown type", type)); - return ppszTypeName[type]; + } } std::string CInv::ToString() const diff --git a/src/protocol.h b/src/protocol.h index a72813e959..15f27e2d2f 100644 --- a/src/protocol.h +++ b/src/protocol.h @@ -264,6 +264,9 @@ enum ServiceFlags : uint64_t { // Bitcoin Core nodes used to support this by default, without advertising this bit, // but no longer do as of protocol version 70011 (= NO_BLOOM_VERSION) NODE_BLOOM = (1 << 2), + // Indicates that a node can be asked for blocks and transactions including + // witness data. + NODE_WITNESS = (1 << 3), // Bits 24-31 are reserved for temporary experiments. Just pick a bit that // isn't getting used, or one not being used much, and notify the @@ -309,13 +312,29 @@ public: unsigned int nTime; }; +/** getdata message types */ +const uint32_t MSG_WITNESS_FLAG = 1 << 30; +const uint32_t MSG_TYPE_MASK = 0xffffffff >> 2; +enum GetDataMsg +{ + UNDEFINED = 0, + MSG_TX, + MSG_BLOCK, + MSG_TYPE_MAX = MSG_BLOCK, + // The following can only occur in getdata. Invs always use TX or BLOCK. + MSG_FILTERED_BLOCK, + MSG_CMPCT_BLOCK, + MSG_WITNESS_BLOCK = MSG_BLOCK | MSG_WITNESS_FLAG, + MSG_WITNESS_TX = MSG_TX | MSG_WITNESS_FLAG, + MSG_FILTERED_WITNESS_BLOCK = MSG_FILTERED_BLOCK | MSG_WITNESS_FLAG, +}; + /** inv message data */ class CInv { public: CInv(); CInv(int typeIn, const uint256& hashIn); - CInv(const std::string& strType, const uint256& hashIn); ADD_SERIALIZE_METHODS; @@ -328,8 +347,7 @@ public: friend bool operator<(const CInv& a, const CInv& b); - bool IsKnownType() const; - const char* GetCommand() const; + std::string GetCommand() const; std::string ToString() const; // TODO: make private (improves encapsulation) @@ -338,13 +356,4 @@ public: uint256 hash; }; -enum { - MSG_TX = 1, - MSG_BLOCK, - // Nodes may always request a MSG_FILTERED_BLOCK/MSG_CMPCT_BLOCK in a getdata, however, - // MSG_FILTERED_BLOCK/MSG_CMPCT_BLOCK should not appear in any invs except as a part of getdata. - MSG_FILTERED_BLOCK, - MSG_CMPCT_BLOCK, -}; - #endif // BITCOIN_PROTOCOL_H diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp index f909499952..837f8ba6c1 100644 --- a/src/qt/coincontroldialog.cpp +++ b/src/qt/coincontroldialog.cpp @@ -485,6 +485,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog) unsigned int nQuantity = 0; int nQuantityUncompressed = 0; bool fAllowFree = false; + bool fWitness = false; std::vector<COutPoint> vCoinControl; std::vector<COutput> vOutputs; @@ -513,7 +514,14 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog) // Bytes CTxDestination address; - if(ExtractDestination(out.tx->vout[out.i].scriptPubKey, address)) + int witnessversion = 0; + std::vector<unsigned char> witnessprogram; + if (out.tx->vout[out.i].scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) + { + nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4); + fWitness = true; + } + else if(ExtractDestination(out.tx->vout[out.i].scriptPubKey, address)) { CPubKey pubkey; CKeyID *keyid = boost::get<CKeyID>(&address); @@ -534,6 +542,14 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog) { // Bytes nBytes = nBytesInputs + ((CoinControlDialog::payAmounts.size() > 0 ? CoinControlDialog::payAmounts.size() + 1 : 2) * 34) + 10; // always assume +1 output for change here + if (fWitness) + { + // there is some fudging in these numbers related to the actual virtual transaction size calculation that will keep this estimate from being exact. + // usually, the result will be an overestimate within a couple of satoshis so that the confirmation dialog ends up displaying a slightly smaller fee. + // also, the witness stack size value value is a variable sized integer. usually, the number of stack items will be well under the single byte var int limit. + nBytes += 2; // account for the serialized marker and flag bytes + nBytes += nQuantity; // account for the witness byte that holds the number of stack items for each input. + } // Priority double mempoolEstimatePriority = mempool.estimateSmartPriority(nTxConfirmTarget); diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp index ff4320b36a..4327de9b0c 100644 --- a/src/qt/guiutil.cpp +++ b/src/qt/guiutil.cpp @@ -909,6 +909,9 @@ QString formatServicesStr(quint64 mask) case NODE_BLOOM: strList.append("BLOOM"); break; + case NODE_WITNESS: + strList.append("WITNESS"); + break; default: strList.append(QString("%1[%2]").arg("UNKNOWN").arg(check)); } diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp index 199a7b2d77..48cf940502 100644 --- a/src/qt/transactionview.cpp +++ b/src/qt/transactionview.cpp @@ -365,6 +365,8 @@ void TransactionView::contextualMenu(const QPoint &point) { QModelIndex index = transactionView->indexAt(point); QModelIndexList selection = transactionView->selectionModel()->selectedRows(0); + if (selection.empty()) + return; // check if transaction can be abandoned, disable context menu action in case it doesn't uint256 hash; diff --git a/src/qt/walletmodeltransaction.cpp b/src/qt/walletmodeltransaction.cpp index 8c970ee8aa..ffadf89cc8 100644 --- a/src/qt/walletmodeltransaction.cpp +++ b/src/qt/walletmodeltransaction.cpp @@ -4,6 +4,7 @@ #include "walletmodeltransaction.h" +#include "policy/policy.h" #include "wallet/wallet.h" WalletModelTransaction::WalletModelTransaction(const QList<SendCoinsRecipient> &recipients) : @@ -33,7 +34,7 @@ CWalletTx *WalletModelTransaction::getTransaction() unsigned int WalletModelTransaction::getTransactionSize() { - return (!walletTransaction ? 0 : (::GetSerializeSize(*(CTransaction*)walletTransaction, SER_NETWORK, PROTOCOL_VERSION))); + return (!walletTransaction ? 0 : ::GetVirtualTransactionSize(*walletTransaction)); } CAmount WalletModelTransaction::getTransactionFee() diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 1bb365d36c..9d1d12a47e 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -99,7 +99,9 @@ UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool tx if (chainActive.Contains(blockindex)) confirmations = chainActive.Height() - blockindex->nHeight + 1; result.push_back(Pair("confirmations", confirmations)); + result.push_back(Pair("strippedsize", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS))); result.push_back(Pair("size", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION))); + result.push_back(Pair("cost", (int)::GetBlockCost(block))); result.push_back(Pair("height", blockindex->nHeight)); result.push_back(Pair("version", block.nVersion)); result.push_back(Pair("versionHex", strprintf("%08x", block.nVersion))); @@ -289,8 +291,6 @@ UniValue getrawmempool(const UniValue& params, bool fHelp) + HelpExampleRpc("getrawmempool", "true") ); - LOCK(cs_main); - bool fVerbose = false; if (params.size() > 0) fVerbose = params[0].get_bool(); @@ -558,6 +558,8 @@ UniValue getblock(const UniValue& params, bool fHelp) " \"hash\" : \"hash\", (string) the block hash (same as provided)\n" " \"confirmations\" : n, (numeric) The number of confirmations, or -1 if the block is not on the main chain\n" " \"size\" : n, (numeric) The block size\n" + " \"strippedsize\" : n, (numeric) The block size excluding witness data\n" + " \"cost\" : n (numeric) The block cost\n" " \"height\" : n, (numeric) The block height or index\n" " \"version\" : n, (numeric) The block version\n" " \"versionHex\" : \"00000000\", (string) The block version formatted in hexadecimal\n" @@ -864,6 +866,15 @@ static UniValue BIP9SoftForkDesc(const Consensus::Params& consensusParams, Conse return rv; } +void BIP9SoftForkDescPushBack(UniValue& bip9_softforks, const std::string &name, const Consensus::Params& consensusParams, Consensus::DeploymentPos id) +{ + // Deployments with timeout value of 0 are hidden. + // A timeout value of 0 guarantees a softfork will never be activated. + // This is used when softfork codes are merged without specifying the deployment schedule. + if (consensusParams.vDeployments[id].nTimeout > 0) + bip9_softforks.push_back(Pair(name, BIP9SoftForkDesc(consensusParams, id))); +} + UniValue getblockchaininfo(const UniValue& params, bool fHelp) { if (fHelp || params.size() != 0) @@ -897,7 +908,7 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp) " ],\n" " \"bip9_softforks\": { (object) status of BIP9 softforks in progress\n" " \"xxxx\" : { (string) name of the softfork\n" - " \"status\": \"xxxx\", (string) one of \"defined\", \"started\", \"lockedin\", \"active\", \"failed\"\n" + " \"status\": \"xxxx\", (string) one of \"defined\", \"started\", \"locked_in\", \"active\", \"failed\"\n" " \"bit\": xx, (numeric) the bit, 0-28, in the block version field used to signal this soft fork\n" " \"startTime\": xx, (numeric) the minimum median time past of a block at which the bit gains its meaning\n" " \"timeout\": xx (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in\n" @@ -929,7 +940,8 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp) softforks.push_back(SoftForkDesc("bip34", 2, tip, consensusParams)); softforks.push_back(SoftForkDesc("bip66", 3, tip, consensusParams)); softforks.push_back(SoftForkDesc("bip65", 4, tip, consensusParams)); - bip9_softforks.push_back(Pair("csv", BIP9SoftForkDesc(consensusParams, Consensus::DEPLOYMENT_CSV))); + BIP9SoftForkDescPushBack(bip9_softforks, "csv", consensusParams, Consensus::DEPLOYMENT_CSV); + BIP9SoftForkDescPushBack(bip9_softforks, "segwit", consensusParams, Consensus::DEPLOYMENT_SEGWIT); obj.push_back(Pair("softforks", softforks)); obj.push_back(Pair("bip9_softforks", bip9_softforks)); diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index 94eeea91f3..4c4e599781 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -224,6 +224,7 @@ UniValue getmininginfo(const UniValue& params, bool fHelp) "{\n" " \"blocks\": nnn, (numeric) The current block\n" " \"currentblocksize\": nnn, (numeric) The last block size\n" + " \"currentblockcost\": nnn, (numeric) The last block cost\n" " \"currentblocktx\": nnn, (numeric) The last block transaction\n" " \"difficulty\": xxx.xxxxx (numeric) The current difficulty\n" " \"errors\": \"...\" (string) Current errors\n" @@ -242,6 +243,7 @@ UniValue getmininginfo(const UniValue& params, bool fHelp) UniValue obj(UniValue::VOBJ); obj.push_back(Pair("blocks", (int)chainActive.Height())); obj.push_back(Pair("currentblocksize", (uint64_t)nLastBlockSize)); + obj.push_back(Pair("currentblockcost", (uint64_t)nLastBlockCost)); obj.push_back(Pair("currentblocktx", (uint64_t)nLastBlockTx)); obj.push_back(Pair("difficulty", (double)GetDifficulty())); obj.push_back(Pair("errors", GetWarnings("statusbar"))); @@ -348,13 +350,15 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) " \"transactions\" : [ (array) contents of non-coinbase transactions that should be included in the next block\n" " {\n" " \"data\" : \"xxxx\", (string) transaction data encoded in hexadecimal (byte-for-byte)\n" - " \"hash\" : \"xxxx\", (string) hash/id encoded in little-endian hexadecimal\n" + " \"txid\" : \"xxxx\", (string) transaction id encoded in little-endian hexadecimal\n" + " \"hash\" : \"xxxx\", (string) hash encoded in little-endian hexadecimal (including witness data)\n" " \"depends\" : [ (array) array of numbers \n" " n (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is\n" " ,...\n" " ],\n" " \"fee\": n, (numeric) difference in value between transaction inputs and outputs (in Satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one\n" - " \"sigops\" : n, (numeric) total number of SigOps, as counted for purposes of block limits; if key is not present, sigop count is unknown and clients MUST NOT assume there aren't any\n" + " \"sigops\" : n, (numeric) total SigOps cost, as counted for purposes of block limits; if key is not present, sigop cost is unknown and clients MUST NOT assume it is zero\n" + " \"cost\" : n, (numeric) total transaction size cost, as counted for purposes of block limits\n" " \"required\" : true|false (boolean) if provided and true, this transaction must be in the final block\n" " }\n" " ,...\n" @@ -371,8 +375,9 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) " ,...\n" " ],\n" " \"noncerange\" : \"00000000ffffffff\", (string) A range of valid nonces\n" - " \"sigoplimit\" : n, (numeric) limit of sigops in blocks\n" + " \"sigoplimit\" : n, (numeric) cost limit of sigops in blocks\n" " \"sizelimit\" : n, (numeric) limit of block size\n" + " \"costlimit\" : n, (numeric) limit of block cost\n" " \"curtime\" : ttt, (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)\n" " \"bits\" : \"xxx\", (string) compressed target of next block\n" " \"height\" : n (numeric) The height of the next block\n" @@ -546,7 +551,7 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) UniValue transactions(UniValue::VARR); map<uint256, int64_t> setTxIndex; int i = 0; - BOOST_FOREACH (const CTransaction& tx, pblock->vtx) { + BOOST_FOREACH (CTransaction& tx, pblock->vtx) { uint256 txHash = tx.GetHash(); setTxIndex[txHash] = i++; @@ -556,8 +561,8 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) UniValue entry(UniValue::VOBJ); entry.push_back(Pair("data", EncodeHexTx(tx))); - - entry.push_back(Pair("hash", txHash.GetHex())); + entry.push_back(Pair("txid", txHash.GetHex())); + entry.push_back(Pair("hash", tx.GetWitnessHash().GetHex())); UniValue deps(UniValue::VARR); BOOST_FOREACH (const CTxIn &in, tx.vin) @@ -569,7 +574,8 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) int index_in_template = i - 1; entry.push_back(Pair("fee", pblocktemplate->vTxFees[index_in_template])); - entry.push_back(Pair("sigops", pblocktemplate->vTxSigOps[index_in_template])); + entry.push_back(Pair("sigops", pblocktemplate->vTxSigOpsCost[index_in_template])); + entry.push_back(Pair("cost", GetTransactionCost(tx))); transactions.push_back(entry); } @@ -651,11 +657,15 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1)); result.push_back(Pair("mutable", aMutable)); result.push_back(Pair("noncerange", "00000000ffffffff")); - result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS)); - result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE)); + result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS_COST)); + result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SERIALIZED_SIZE)); + result.push_back(Pair("costlimit", (int64_t)MAX_BLOCK_COST)); result.push_back(Pair("curtime", pblock->GetBlockTime())); result.push_back(Pair("bits", strprintf("%08x", pblock->nBits))); result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); + if (!pblocktemplate->vchCoinbaseCommitment.empty()) { + result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end()))); + } return result; } @@ -719,6 +729,14 @@ UniValue submitblock(const UniValue& params, bool fHelp) } } + { + LOCK(cs_main); + BlockMap::iterator mi = mapBlockIndex.find(block.hashPrevBlock); + if (mi != mapBlockIndex.end()) { + UpdateUncommittedBlockStructures(block, mi->second, Params().GetConsensus()); + } + } + CValidationState state; submitblock_StateCatcher sc(block.GetHash()); RegisterValidationInterface(&sc); diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp index 09f5185781..f2a29416e6 100644 --- a/src/rpc/misc.cpp +++ b/src/rpc/misc.cpp @@ -312,6 +312,43 @@ UniValue createmultisig(const UniValue& params, bool fHelp) return result; } +UniValue createwitnessaddress(const UniValue& params, bool fHelp) +{ + if (fHelp || params.size() < 1 || params.size() > 1) + { + string msg = "createwitnessaddress \"script\"\n" + "\nCreates a witness address for a particular script.\n" + "It returns a json object with the address and witness script.\n" + + "\nArguments:\n" + "1. \"script\" (string, required) A hex encoded script\n" + + "\nResult:\n" + "{\n" + " \"address\":\"multisigaddress\", (string) The value of the new address (P2SH of witness script).\n" + " \"witnessScript\":\"script\" (string) The string value of the hex-encoded witness script.\n" + "}\n" + ; + throw runtime_error(msg); + } + + if (!IsHex(params[0].get_str())) { + throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Script must be hex-encoded"); + } + + std::vector<unsigned char> code = ParseHex(params[0].get_str()); + CScript script(code.begin(), code.end()); + CScript witscript = GetScriptForWitness(script); + CScriptID witscriptid(witscript); + CBitcoinAddress address(witscriptid); + + UniValue result(UniValue::VOBJ); + result.push_back(Pair("address", address.ToString())); + result.push_back(Pair("witnessScript", HexStr(witscript.begin(), witscript.end()))); + + return result; +} + UniValue verifymessage(const UniValue& params, bool fHelp) { if (fHelp || params.size() != 3) @@ -445,6 +482,7 @@ static const CRPCCommand commands[] = { "control", "getinfo", &getinfo, true }, /* uses wallet if enabled */ { "util", "validateaddress", &validateaddress, true }, /* uses wallet if enabled */ { "util", "createmultisig", &createmultisig, true }, + { "util", "createwitnessaddress", &createwitnessaddress, true }, { "util", "verifymessage", &verifymessage, true }, { "util", "signmessagewithprivkey", &signmessagewithprivkey, true }, diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 9723e394d6..3270cd384f 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -62,11 +62,15 @@ void ScriptPubKeyToJSON(const CScript& scriptPubKey, UniValue& out, bool fInclud void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry) { entry.push_back(Pair("txid", tx.GetHash().GetHex())); + entry.push_back(Pair("hash", tx.GetWitnessHash().GetHex())); entry.push_back(Pair("size", (int)::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION))); + entry.push_back(Pair("vsize", (int)::GetVirtualTransactionSize(tx))); entry.push_back(Pair("version", tx.nVersion)); entry.push_back(Pair("locktime", (int64_t)tx.nLockTime)); + UniValue vin(UniValue::VARR); - BOOST_FOREACH(const CTxIn& txin, tx.vin) { + for (unsigned int i = 0; i < tx.vin.size(); i++) { + const CTxIn& txin = tx.vin[i]; UniValue in(UniValue::VOBJ); if (tx.IsCoinBase()) in.push_back(Pair("coinbase", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()))); @@ -78,6 +82,17 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry) o.push_back(Pair("hex", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()))); in.push_back(Pair("scriptSig", o)); } + if (!tx.wit.IsNull()) { + if (!tx.wit.vtxinwit[i].IsNull()) { + UniValue txinwitness(UniValue::VARR); + for (unsigned int j = 0; j < tx.wit.vtxinwit[i].scriptWitness.stack.size(); j++) { + std::vector<unsigned char> item = tx.wit.vtxinwit[i].scriptWitness.stack[j]; + txinwitness.push_back(HexStr(item.begin(), item.end())); + } + in.push_back(Pair("txinwitness", txinwitness)); + } + + } in.push_back(Pair("sequence", (int64_t)txin.nSequence)); vin.push_back(in); } @@ -134,7 +149,9 @@ UniValue getrawtransaction(const UniValue& params, bool fHelp) "{\n" " \"hex\" : \"data\", (string) The serialized, hex-encoded data for 'txid'\n" " \"txid\" : \"id\", (string) The transaction id (same as provided)\n" - " \"size\" : n, (numeric) The transaction size\n" + " \"hash\" : \"id\", (string) The transaction hash (differs from txid for witness transactions)\n" + " \"size\" : n, (numeric) The serialized transaction size\n" + " \"vsize\" : n, (numeric) The virtual transaction size (differs from size for witness transactions)\n" " \"version\" : n, (numeric) The version\n" " \"locktime\" : ttt, (numeric) The lock time\n" " \"vin\" : [ (array of json objects)\n" @@ -146,6 +163,7 @@ UniValue getrawtransaction(const UniValue& params, bool fHelp) " \"hex\": \"hex\" (string) hex\n" " },\n" " \"sequence\": n (numeric) The script sequence number\n" + " \"txinwitness\": [\"hex\", ...] (array of string) hex-encoded witness data (if any)\n" " }\n" " ,...\n" " ],\n" @@ -276,7 +294,7 @@ UniValue gettxoutproof(const UniValue& params, bool fHelp) if (ntxFound != setTxids.size()) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "(Not all) transactions not found in specified block"); - CDataStream ssMB(SER_NETWORK, PROTOCOL_VERSION); + CDataStream ssMB(SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS); CMerkleBlock mb(block, setTxids); ssMB << mb; std::string strHex = HexStr(ssMB.begin(), ssMB.end()); @@ -296,7 +314,7 @@ UniValue verifytxoutproof(const UniValue& params, bool fHelp) "[\"txid\"] (array, strings) The txid(s) which the proof commits to, or empty array if the proof is invalid\n" ); - CDataStream ssMB(ParseHexV(params[0], "proof"), SER_NETWORK, PROTOCOL_VERSION); + CDataStream ssMB(ParseHexV(params[0], "proof"), SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS); CMerkleBlock merkleBlock; ssMB >> merkleBlock; @@ -443,7 +461,9 @@ UniValue decoderawtransaction(const UniValue& params, bool fHelp) "\nResult:\n" "{\n" " \"txid\" : \"id\", (string) The transaction id\n" + " \"hash\" : \"id\", (string) The transaction hash (differs from txid for witness transactions)\n" " \"size\" : n, (numeric) The transaction size\n" + " \"vsize\" : n, (numeric) The virtual transaction size (differs from size for witness transactions)\n" " \"version\" : n, (numeric) The version\n" " \"locktime\" : ttt, (numeric) The lock time\n" " \"vin\" : [ (array of json objects)\n" @@ -454,6 +474,7 @@ UniValue decoderawtransaction(const UniValue& params, bool fHelp) " \"asm\": \"asm\", (string) asm\n" " \"hex\": \"hex\" (string) hex\n" " },\n" + " \"txinwitness\": [\"hex\", ...] (array of string) hex-encoded witness data (if any)\n" " \"sequence\": n (numeric) The script sequence number\n" " }\n" " ,...\n" @@ -487,7 +508,7 @@ UniValue decoderawtransaction(const UniValue& params, bool fHelp) CTransaction tx; - if (!DecodeHexTx(tx, params[0].get_str())) + if (!DecodeHexTx(tx, params[0].get_str(), true)) throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); UniValue result(UniValue::VOBJ); @@ -571,7 +592,8 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp) " \"txid\":\"id\", (string, required) The transaction id\n" " \"vout\":n, (numeric, required) The output number\n" " \"scriptPubKey\": \"hex\", (string, required) script key\n" - " \"redeemScript\": \"hex\" (string, required for P2SH) redeem script\n" + " \"redeemScript\": \"hex\", (string, required for P2SH or P2WSH) redeem script\n" + " \"amount\": value (numeric, required) The amount spent\n" " }\n" " ,...\n" " ]\n" @@ -714,12 +736,15 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp) if ((unsigned int)nOut >= coins->vout.size()) coins->vout.resize(nOut+1); coins->vout[nOut].scriptPubKey = scriptPubKey; - coins->vout[nOut].nValue = 0; // we don't know the actual output value + coins->vout[nOut].nValue = 0; + if (prevOut.exists("amount")) { + coins->vout[nOut].nValue = AmountFromValue(find_value(prevOut, "amount")); + } } // if redeemScript given and not using the local wallet (private keys // given), add redeemScript to the tempKeystore so it can be signed: - if (fGivenKeys && scriptPubKey.IsPayToScriptHash()) { + if (fGivenKeys && (scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash())) { RPCTypeCheckObj(prevOut, { {"txid", UniValueType(UniValue::VSTR)}, @@ -778,18 +803,22 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp) continue; } const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey; + const CAmount& amount = coins->vout[txin.prevout.n].nValue; - txin.scriptSig.clear(); + SignatureData sigdata; // Only sign SIGHASH_SINGLE if there's a corresponding output: if (!fHashSingle || (i < mergedTx.vout.size())) - SignSignature(keystore, prevPubKey, mergedTx, i, nHashType); + ProduceSignature(MutableTransactionSignatureCreator(&keystore, &mergedTx, i, amount, nHashType), prevPubKey, sigdata); // ... and merge in other signatures: BOOST_FOREACH(const CMutableTransaction& txv, txVariants) { - txin.scriptSig = CombineSignatures(prevPubKey, txConst, i, txin.scriptSig, txv.vin[i].scriptSig); + sigdata = CombineSignatures(prevPubKey, TransactionSignatureChecker(&txConst, i, amount), sigdata, DataFromTransaction(txv, i)); } + + UpdateTransaction(mergedTx, i, sigdata); + ScriptError serror = SCRIPT_ERR_OK; - if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i), &serror)) { + if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) { TxInErrorToJSON(txin, vErrors, ScriptErrorString(serror)); } } diff --git a/src/script/bitcoinconsensus.cpp b/src/script/bitcoinconsensus.cpp index 47ad1d0807..62fd9031f8 100644 --- a/src/script/bitcoinconsensus.cpp +++ b/src/script/bitcoinconsensus.cpp @@ -69,7 +69,7 @@ struct ECCryptoClosure ECCryptoClosure instance_of_eccryptoclosure; } -int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, +static int verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, CAmount amount, const unsigned char *txTo , unsigned int txToLen, unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err) { @@ -82,15 +82,36 @@ int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned i if (tx.GetSerializeSize(SER_NETWORK, PROTOCOL_VERSION) != txToLen) return set_error(err, bitcoinconsensus_ERR_TX_SIZE_MISMATCH); - // Regardless of the verification result, the tx did not error. - set_error(err, bitcoinconsensus_ERR_OK); + // Regardless of the verification result, the tx did not error. + set_error(err, bitcoinconsensus_ERR_OK); - return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn), NULL); + return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), nIn < tx.wit.vtxinwit.size() ? &tx.wit.vtxinwit[nIn].scriptWitness : NULL, flags, TransactionSignatureChecker(&tx, nIn, amount), NULL); } catch (const std::exception&) { return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing } } +int bitcoinconsensus_verify_script_with_amount(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, int64_t amount, + const unsigned char *txTo , unsigned int txToLen, + unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err) +{ + CAmount am(amount); + return ::verify_script(scriptPubKey, scriptPubKeyLen, am, txTo, txToLen, nIn, flags, err); +} + + +int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, + const unsigned char *txTo , unsigned int txToLen, + unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err) +{ + if (flags & bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS) { + return set_error(err, bitcoinconsensus_ERR_AMOUNT_REQUIRED); + } + + CAmount am(0); + return ::verify_script(scriptPubKey, scriptPubKeyLen, am, txTo, txToLen, nIn, flags, err); +} + unsigned int bitcoinconsensus_version() { // Just use the API version for now diff --git a/src/script/bitcoinconsensus.h b/src/script/bitcoinconsensus.h index 5b8c33c6bf..6f868d0d6d 100644 --- a/src/script/bitcoinconsensus.h +++ b/src/script/bitcoinconsensus.h @@ -6,6 +6,8 @@ #ifndef BITCOIN_BITCOINCONSENSUS_H #define BITCOIN_BITCOINCONSENSUS_H +#include <stdint.h> + #if defined(BUILD_BITCOIN_INTERNAL) && defined(HAVE_CONFIG_H) #include "config/bitcoin-config.h" #if defined(_WIN32) @@ -31,7 +33,7 @@ extern "C" { #endif -#define BITCOINCONSENSUS_API_VER 0 +#define BITCOINCONSENSUS_API_VER 1 typedef enum bitcoinconsensus_error_t { @@ -39,6 +41,7 @@ typedef enum bitcoinconsensus_error_t bitcoinconsensus_ERR_TX_INDEX, bitcoinconsensus_ERR_TX_SIZE_MISMATCH, bitcoinconsensus_ERR_TX_DESERIALIZE, + bitcoinconsensus_ERR_AMOUNT_REQUIRED, } bitcoinconsensus_error; /** Script verification flags */ @@ -48,6 +51,7 @@ enum bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH = (1U << 0), // evaluate P2SH (BIP16) subscripts bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG = (1U << 2), // enforce strict DER (BIP66) compliance bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), // enable CHECKLOCKTIMEVERIFY (BIP65) + bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS = (1U << 11), // enable WITNESS (BIP141) }; /// Returns 1 if the input nIn of the serialized transaction pointed to by @@ -55,6 +59,10 @@ enum /// the additional constraints specified by flags. /// If not NULL, err will contain an error/success code for the operation EXPORT_SYMBOL int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, + const unsigned char *txTo , unsigned int txToLen, + unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err); + +EXPORT_SYMBOL int bitcoinconsensus_verify_script_with_amount(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, int64_t amount, const unsigned char *txTo , unsigned int txToLen, unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err); diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp index fd4a5674cf..bc027e9f0c 100644 --- a/src/script/interpreter.cpp +++ b/src/script/interpreter.cpp @@ -229,7 +229,7 @@ bool static CheckMinimalPush(const valtype& data, opcodetype opcode) { return true; } -bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) +bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, SigVersion sigversion, ScriptError* serror) { static const CScriptNum bnZero(0); static const CScriptNum bnOne(1); @@ -869,13 +869,15 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un CScript scriptCode(pbegincodehash, pend); // Drop the signature, since there's no way for a signature to sign itself - scriptCode.FindAndDelete(CScript(vchSig)); + if (sigversion == SIGVERSION_BASE) { + scriptCode.FindAndDelete(CScript(vchSig)); + } if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, serror)) { //serror is set return false; } - bool fSuccess = checker.CheckSig(vchSig, vchPubKey, scriptCode); + bool fSuccess = checker.CheckSig(vchSig, vchPubKey, scriptCode, sigversion); popstack(stack); popstack(stack); @@ -925,7 +927,9 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un for (int k = 0; k < nSigsCount; k++) { valtype& vchSig = stacktop(-isig-k); - scriptCode.FindAndDelete(CScript(vchSig)); + if (sigversion == SIGVERSION_BASE) { + scriptCode.FindAndDelete(CScript(vchSig)); + } } bool fSuccess = true; @@ -943,7 +947,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un } // Check signature - bool fOk = checker.CheckSig(vchSig, vchPubKey, scriptCode); + bool fOk = checker.CheckSig(vchSig, vchPubKey, scriptCode, sigversion); if (fOk) { isig++; @@ -1106,8 +1110,64 @@ public: } // anon namespace -uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType) +uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion) { + if (sigversion == SIGVERSION_WITNESS_V0) { + uint256 hashPrevouts; + uint256 hashSequence; + uint256 hashOutputs; + + if (!(nHashType & SIGHASH_ANYONECANPAY)) { + CHashWriter ss(SER_GETHASH, 0); + for (unsigned int n = 0; n < txTo.vin.size(); n++) { + ss << txTo.vin[n].prevout; + } + hashPrevouts = ss.GetHash(); // TODO: cache this value for all signatures in a transaction + } + + if (!(nHashType & SIGHASH_ANYONECANPAY) && (nHashType & 0x1f) != SIGHASH_SINGLE && (nHashType & 0x1f) != SIGHASH_NONE) { + CHashWriter ss(SER_GETHASH, 0); + for (unsigned int n = 0; n < txTo.vin.size(); n++) { + ss << txTo.vin[n].nSequence; + } + hashSequence = ss.GetHash(); // TODO: cache this value for all signatures in a transaction + } + + if ((nHashType & 0x1f) != SIGHASH_SINGLE && (nHashType & 0x1f) != SIGHASH_NONE) { + CHashWriter ss(SER_GETHASH, 0); + for (unsigned int n = 0; n < txTo.vout.size(); n++) { + ss << txTo.vout[n]; + } + hashOutputs = ss.GetHash(); // TODO: cache this value for all signatures in a transaction + } else if ((nHashType & 0x1f) == SIGHASH_SINGLE && nIn < txTo.vout.size()) { + CHashWriter ss(SER_GETHASH, 0); + ss << txTo.vout[nIn]; + hashOutputs = ss.GetHash(); + } + + CHashWriter ss(SER_GETHASH, 0); + // Version + ss << txTo.nVersion; + // Input prevouts/nSequence (none/all, depending on flags) + ss << hashPrevouts; + ss << hashSequence; + // The input being signed (replacing the scriptSig with scriptCode + amount) + // The prevout may already be contained in hashPrevout, and the nSequence + // may already be contain in hashSequence. + ss << txTo.vin[nIn].prevout; + ss << static_cast<const CScriptBase&>(scriptCode); + ss << amount; + ss << txTo.vin[nIn].nSequence; + // Outputs (none/one/all, depending on flags) + ss << hashOutputs; + // Locktime + ss << txTo.nLockTime; + // Sighash type + ss << nHashType; + + return ss.GetHash(); + } + static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001")); if (nIn >= txTo.vin.size()) { // nIn out of range @@ -1136,7 +1196,7 @@ bool TransactionSignatureChecker::VerifySignature(const std::vector<unsigned cha return pubkey.Verify(sighash, vchSig); } -bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode) const +bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const { CPubKey pubkey(vchPubKey); if (!pubkey.IsValid()) @@ -1149,7 +1209,7 @@ bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn int nHashType = vchSig.back(); vchSig.pop_back(); - uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType); + uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion); if (!VerifySignature(vchSig, pubkey, sighash)) return false; @@ -1239,8 +1299,67 @@ bool TransactionSignatureChecker::CheckSequence(const CScriptNum& nSequence) con return true; } -bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) +static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion, const std::vector<unsigned char>& program, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) { + vector<vector<unsigned char> > stack; + CScript scriptPubKey; + + if (witversion == 0) { + if (program.size() == 32) { + // Version 0 segregated witness program: SHA256(CScript) inside the program, CScript + inputs in witness + if (witness.stack.size() == 0) { + return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY); + } + scriptPubKey = CScript(witness.stack.back().begin(), witness.stack.back().end()); + stack = std::vector<std::vector<unsigned char> >(witness.stack.begin(), witness.stack.end() - 1); + uint256 hashScriptPubKey; + CSHA256().Write(&scriptPubKey[0], scriptPubKey.size()).Finalize(hashScriptPubKey.begin()); + if (memcmp(hashScriptPubKey.begin(), &program[0], 32)) { + return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH); + } + } else if (program.size() == 20) { + // Special case for pay-to-pubkeyhash; signature + pubkey in witness + if (witness.stack.size() != 2) { + return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH); // 2 items in witness + } + scriptPubKey << OP_DUP << OP_HASH160 << program << OP_EQUALVERIFY << OP_CHECKSIG; + stack = witness.stack; + } else { + return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH); + } + } else if (flags & SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM) { + return set_error(serror, SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM); + } else { + // Higher version witness scripts return true for future softfork compatibility + return set_success(serror); + } + + // Disallow stack item size > MAX_SCRIPT_ELEMENT_SIZE in witness stack + for (unsigned int i = 0; i < stack.size(); i++) { + if (stack.at(i).size() > MAX_SCRIPT_ELEMENT_SIZE) + return set_error(serror, SCRIPT_ERR_PUSH_SIZE); + } + + if (!EvalScript(stack, scriptPubKey, flags, checker, SIGVERSION_WITNESS_V0, serror)) { + return false; + } + + // Scripts inside witness implicitly require cleanstack behaviour + if (stack.size() != 1) + return set_error(serror, SCRIPT_ERR_EVAL_FALSE); + if (!CastToBool(stack.back())) + return set_error(serror, SCRIPT_ERR_EVAL_FALSE); + return true; +} + +bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) +{ + static const CScriptWitness emptyWitness; + if (witness == NULL) { + witness = &emptyWitness; + } + bool hadWitness = false; + set_error(serror, SCRIPT_ERR_UNKNOWN_ERROR); if ((flags & SCRIPT_VERIFY_SIGPUSHONLY) != 0 && !scriptSig.IsPushOnly()) { @@ -1248,12 +1367,12 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigne } vector<vector<unsigned char> > stack, stackCopy; - if (!EvalScript(stack, scriptSig, flags, checker, serror)) + if (!EvalScript(stack, scriptSig, flags, checker, SIGVERSION_BASE, serror)) // serror is set return false; if (flags & SCRIPT_VERIFY_P2SH) stackCopy = stack; - if (!EvalScript(stack, scriptPubKey, flags, checker, serror)) + if (!EvalScript(stack, scriptPubKey, flags, checker, SIGVERSION_BASE, serror)) // serror is set return false; if (stack.empty()) @@ -1261,6 +1380,25 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigne if (CastToBool(stack.back()) == false) return set_error(serror, SCRIPT_ERR_EVAL_FALSE); + // Bare witness programs + int witnessversion; + std::vector<unsigned char> witnessprogram; + if (flags & SCRIPT_VERIFY_WITNESS) { + if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) { + hadWitness = true; + if (scriptSig.size() != 0) { + // The scriptSig must be _exactly_ CScript(), otherwise we reintroduce malleability. + return set_error(serror, SCRIPT_ERR_WITNESS_MALLEATED); + } + if (!VerifyWitnessProgram(*witness, witnessversion, witnessprogram, flags, checker, serror)) { + return false; + } + // Bypass the cleanstack check at the end. The actual stack is obviously not clean + // for witness programs. + stack.resize(1); + } + } + // Additional validation for spend-to-script-hash transactions: if ((flags & SCRIPT_VERIFY_P2SH) && scriptPubKey.IsPayToScriptHash()) { @@ -1280,26 +1418,102 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigne CScript pubKey2(pubKeySerialized.begin(), pubKeySerialized.end()); popstack(stack); - if (!EvalScript(stack, pubKey2, flags, checker, serror)) + if (!EvalScript(stack, pubKey2, flags, checker, SIGVERSION_BASE, serror)) // serror is set return false; if (stack.empty()) return set_error(serror, SCRIPT_ERR_EVAL_FALSE); if (!CastToBool(stack.back())) return set_error(serror, SCRIPT_ERR_EVAL_FALSE); + + // P2SH witness program + if (flags & SCRIPT_VERIFY_WITNESS) { + if (pubKey2.IsWitnessProgram(witnessversion, witnessprogram)) { + hadWitness = true; + if (scriptSig != CScript() << std::vector<unsigned char>(pubKey2.begin(), pubKey2.end())) { + // The scriptSig must be _exactly_ a single push of the redeemScript. Otherwise we + // reintroduce malleability. + return set_error(serror, SCRIPT_ERR_WITNESS_MALLEATED_P2SH); + } + if (!VerifyWitnessProgram(*witness, witnessversion, witnessprogram, flags, checker, serror)) { + return false; + } + // Bypass the cleanstack check at the end. The actual stack is obviously not clean + // for witness programs. + stack.resize(1); + } + } } // The CLEANSTACK check is only performed after potential P2SH evaluation, // as the non-P2SH evaluation of a P2SH script will obviously not result in - // a clean stack (the P2SH inputs remain). + // a clean stack (the P2SH inputs remain). The same holds for witness evaluation. if ((flags & SCRIPT_VERIFY_CLEANSTACK) != 0) { // Disallow CLEANSTACK without P2SH, as otherwise a switch CLEANSTACK->P2SH+CLEANSTACK // would be possible, which is not a softfork (and P2SH should be one). assert((flags & SCRIPT_VERIFY_P2SH) != 0); + assert((flags & SCRIPT_VERIFY_WITNESS) != 0); if (stack.size() != 1) { return set_error(serror, SCRIPT_ERR_CLEANSTACK); } } + if (flags & SCRIPT_VERIFY_WITNESS) { + // We can't check for correct unexpected witness data if P2SH was off, so require + // that WITNESS implies P2SH. Otherwise, going from WITNESS->P2SH+WITNESS would be + // possible, which is not a softfork. + assert((flags & SCRIPT_VERIFY_P2SH) != 0); + if (!hadWitness && !witness->IsNull()) { + return set_error(serror, SCRIPT_ERR_WITNESS_UNEXPECTED); + } + } + return set_success(serror); } + +size_t static WitnessSigOps(int witversion, const std::vector<unsigned char>& witprogram, const CScriptWitness& witness, int flags) +{ + if (witversion == 0) { + if (witprogram.size() == 20) + return 1; + + if (witprogram.size() == 32 && witness.stack.size() > 0) { + CScript subscript(witness.stack.back().begin(), witness.stack.back().end()); + return subscript.GetSigOpCount(true); + } + } + + // Future flags may be implemented here. + return 0; +} + +size_t CountWitnessSigOps(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags) +{ + static const CScriptWitness witnessEmpty; + + if ((flags & SCRIPT_VERIFY_WITNESS) == 0) { + return 0; + } + assert((flags & SCRIPT_VERIFY_P2SH) != 0); + + int witnessversion; + std::vector<unsigned char> witnessprogram; + if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) { + return WitnessSigOps(witnessversion, witnessprogram, witness ? *witness : witnessEmpty, flags); + } + + if (scriptPubKey.IsPayToScriptHash() && scriptSig.IsPushOnly()) { + CScript::const_iterator pc = scriptSig.begin(); + vector<unsigned char> data; + while (pc < scriptSig.end()) { + opcodetype opcode; + scriptSig.GetOp(pc, opcode, data); + } + CScript subscript(data.begin(), data.end()); + if (subscript.IsWitnessProgram(witnessversion, witnessprogram)) { + return WitnessSigOps(witnessversion, witnessprogram, witness ? *witness : witnessEmpty, flags); + } + } + + return 0; +} diff --git a/src/script/interpreter.h b/src/script/interpreter.h index e5cb7290f2..bd2f211663 100644 --- a/src/script/interpreter.h +++ b/src/script/interpreter.h @@ -74,7 +74,7 @@ enum // "At least one stack element must remain, and when interpreted as a boolean, it must be true" to // "Exactly one stack element must remain, and when interpreted as a boolean, it must be true". // (softfork safe, BIP62 rule 6) - // Note: CLEANSTACK should never be used without P2SH. + // Note: CLEANSTACK should never be used without P2SH or WITNESS. SCRIPT_VERIFY_CLEANSTACK = (1U << 8), // Verify CHECKLOCKTIMEVERIFY @@ -86,16 +86,30 @@ enum // // See BIP112 for details SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10), + + // Support segregated witness + // + SCRIPT_VERIFY_WITNESS = (1U << 11), + + // Making v1-v16 witness program non-standard + // + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM = (1U << 12), }; bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror); -uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType); +enum SigVersion +{ + SIGVERSION_BASE = 0, + SIGVERSION_WITNESS_V0 = 1, +}; + +uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion); class BaseSignatureChecker { public: - virtual bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const + virtual bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const { return false; } @@ -118,13 +132,14 @@ class TransactionSignatureChecker : public BaseSignatureChecker private: const CTransaction* txTo; unsigned int nIn; + const CAmount amount; protected: virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const; public: - TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {} - bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const; + TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn) {} + bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const; bool CheckLockTime(const CScriptNum& nLockTime) const; bool CheckSequence(const CScriptNum& nSequence) const; }; @@ -135,10 +150,12 @@ private: const CTransaction txTo; public: - MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn) : TransactionSignatureChecker(&txTo, nInIn), txTo(*txToIn) {} + MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : TransactionSignatureChecker(&txTo, nInIn, amount), txTo(*txToIn) {} }; -bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL); -bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL); +bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, SigVersion sigversion, ScriptError* error = NULL); +bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror = NULL); + +size_t CountWitnessSigOps(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags); #endif // BITCOIN_SCRIPT_INTERPRETER_H diff --git a/src/script/ismine.cpp b/src/script/ismine.cpp index 535c56b57a..0bf180341e 100644 --- a/src/script/ismine.cpp +++ b/src/script/ismine.cpp @@ -57,6 +57,7 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey) return ISMINE_SPENDABLE; break; case TX_PUBKEYHASH: + case TX_WITNESS_V0_KEYHASH: keyID = CKeyID(uint160(vSolutions[0])); if (keystore.HaveKey(keyID)) return ISMINE_SPENDABLE; @@ -72,6 +73,20 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey) } break; } + case TX_WITNESS_V0_SCRIPTHASH: + { + uint160 hash; + CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(hash.begin()); + CScriptID scriptID = CScriptID(hash); + CScript subscript; + if (keystore.GetCScript(scriptID, subscript)) { + isminetype ret = IsMine(keystore, subscript); + if (ret == ISMINE_SPENDABLE) + return ret; + } + break; + } + case TX_MULTISIG: { // Only consider transactions "mine" if we own ALL the @@ -88,8 +103,8 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey) if (keystore.HaveWatchOnly(scriptPubKey)) { // TODO: This could be optimized some by doing some work after the above solver - CScript scriptSig; - return ProduceSignature(DummySignatureCreator(&keystore), scriptPubKey, scriptSig) ? ISMINE_WATCH_SOLVABLE : ISMINE_WATCH_UNSOLVABLE; + SignatureData sigs; + return ProduceSignature(DummySignatureCreator(&keystore), scriptPubKey, sigs) ? ISMINE_WATCH_SOLVABLE : ISMINE_WATCH_UNSOLVABLE; } return ISMINE_NO; } diff --git a/src/script/script.cpp b/src/script/script.cpp index 9f2809e593..da551c23ee 100644 --- a/src/script/script.cpp +++ b/src/script/script.cpp @@ -210,6 +210,32 @@ bool CScript::IsPayToScriptHash() const (*this)[22] == OP_EQUAL); } +bool CScript::IsPayToWitnessScriptHash() const +{ + // Extra-fast test for pay-to-witness-script-hash CScripts: + return (this->size() == 34 && + (*this)[0] == OP_0 && + (*this)[1] == 0x20); +} + +// A witness program is any valid CScript that consists of a 1-byte push opcode +// followed by a data push between 2 and 40 bytes. +bool CScript::IsWitnessProgram(int& version, std::vector<unsigned char>& program) const +{ + if (this->size() < 4 || this->size() > 42) { + return false; + } + if ((*this)[0] != OP_0 && ((*this)[0] < OP_1 || (*this)[0] > OP_16)) { + return false; + } + if ((size_t)((*this)[1] + 2) == this->size()) { + version = DecodeOP_N((opcodetype)(*this)[0]); + program = std::vector<unsigned char>(this->begin() + 2, this->end()); + return true; + } + return false; +} + bool CScript::IsPushOnly(const_iterator pc) const { while (pc < end()) @@ -231,3 +257,15 @@ bool CScript::IsPushOnly() const { return this->IsPushOnly(begin()); } + +std::string CScriptWitness::ToString() const +{ + std::string ret = "CScriptWitness("; + for (unsigned int i = 0; i < stack.size(); i++) { + if (i) { + ret += ", "; + } + ret += HexStr(stack[i]); + } + return ret + ")"; +} diff --git a/src/script/script.h b/src/script/script.h index a2941ce901..71af3754bc 100644 --- a/src/script/script.h +++ b/src/script/script.h @@ -621,6 +621,8 @@ public: unsigned int GetSigOpCount(const CScript& scriptSig) const; bool IsPayToScriptHash() const; + bool IsPayToWitnessScriptHash() const; + bool IsWitnessProgram(int& version, std::vector<unsigned char>& program) const; /** Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical). */ bool IsPushOnly(const_iterator pc) const; @@ -643,6 +645,20 @@ public: } }; +struct CScriptWitness +{ + // Note that this encodes the data elements being pushed, rather than + // encoding them as a CScript that pushes them. + std::vector<std::vector<unsigned char> > stack; + + // Some compilers complain without a default constructor + CScriptWitness() { } + + bool IsNull() const { return stack.empty(); } + + std::string ToString() const; +}; + class CReserveScript { public: diff --git a/src/script/script_error.cpp b/src/script/script_error.cpp index f1aa1fb408..cef807edcf 100644 --- a/src/script/script_error.cpp +++ b/src/script/script_error.cpp @@ -65,8 +65,22 @@ const char* ScriptErrorString(const ScriptError serror) return "Dummy CHECKMULTISIG argument must be zero"; case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS: return "NOPx reserved for soft-fork upgrades"; + case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM: + return "Witness version reserved for soft-fork upgrades"; case SCRIPT_ERR_PUBKEYTYPE: return "Public key is neither compressed or uncompressed"; + case SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH: + return "Witness program has incorrect length"; + case SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY: + return "Witness program was passed an empty witness"; + case SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH: + return "Witness program hash mismatch"; + case SCRIPT_ERR_WITNESS_MALLEATED: + return "Witness requires empty scriptSig"; + case SCRIPT_ERR_WITNESS_MALLEATED_P2SH: + return "Witness requires only-redeemscript scriptSig"; + case SCRIPT_ERR_WITNESS_UNEXPECTED: + return "Witness provided for non-witness script"; case SCRIPT_ERR_UNKNOWN_ERROR: case SCRIPT_ERR_ERROR_COUNT: default: break; diff --git a/src/script/script_error.h b/src/script/script_error.h index 26df33932f..09dc6945ad 100644 --- a/src/script/script_error.h +++ b/src/script/script_error.h @@ -51,6 +51,15 @@ typedef enum ScriptError_t /* softfork safeness */ SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS, + SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM, + + /* segregated witness */ + SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH, + SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY, + SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH, + SCRIPT_ERR_WITNESS_MALLEATED, + SCRIPT_ERR_WITNESS_MALLEATED_P2SH, + SCRIPT_ERR_WITNESS_UNEXPECTED, SCRIPT_ERR_ERROR_COUNT } ScriptError; diff --git a/src/script/sigcache.h b/src/script/sigcache.h index be1df09c2a..050bf8cc42 100644 --- a/src/script/sigcache.h +++ b/src/script/sigcache.h @@ -22,7 +22,7 @@ private: bool store; public: - CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, bool storeIn=true) : TransactionSignatureChecker(txToIn, nInIn), store(storeIn) {} + CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount, bool storeIn) : TransactionSignatureChecker(txToIn, nInIn, amount), store(storeIn) {} bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const; }; diff --git a/src/script/sign.cpp b/src/script/sign.cpp index 2f4111f786..87f38d9c72 100644 --- a/src/script/sign.cpp +++ b/src/script/sign.cpp @@ -18,31 +18,31 @@ using namespace std; typedef std::vector<unsigned char> valtype; -TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), checker(txTo, nIn) {} +TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {} -bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode) const +bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, SigVersion sigversion) const { CKey key; if (!keystore->GetKey(address, key)) return false; - uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType); + uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion); if (!key.Sign(hash, vchSig)) return false; vchSig.push_back((unsigned char)nHashType); return true; } -static bool Sign1(const CKeyID& address, const BaseSignatureCreator& creator, const CScript& scriptCode, CScript& scriptSigRet) +static bool Sign1(const CKeyID& address, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) { vector<unsigned char> vchSig; - if (!creator.CreateSig(vchSig, address, scriptCode)) + if (!creator.CreateSig(vchSig, address, scriptCode, sigversion)) return false; - scriptSigRet << vchSig; + ret.push_back(vchSig); return true; } -static bool SignN(const vector<valtype>& multisigdata, const BaseSignatureCreator& creator, const CScript& scriptCode, CScript& scriptSigRet) +static bool SignN(const vector<valtype>& multisigdata, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) { int nSigned = 0; int nRequired = multisigdata.front()[0]; @@ -50,7 +50,7 @@ static bool SignN(const vector<valtype>& multisigdata, const BaseSignatureCreato { const valtype& pubkey = multisigdata[i]; CKeyID keyID = CPubKey(pubkey).GetID(); - if (Sign1(keyID, creator, scriptCode, scriptSigRet)) + if (Sign1(keyID, creator, scriptCode, ret, sigversion)) ++nSigned; } return nSigned==nRequired; @@ -63,9 +63,11 @@ static bool SignN(const vector<valtype>& multisigdata, const BaseSignatureCreato * Returns false if scriptPubKey could not be completely satisfied. */ static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptPubKey, - CScript& scriptSigRet, txnouttype& whichTypeRet) + std::vector<valtype>& ret, txnouttype& whichTypeRet, SigVersion sigversion) { - scriptSigRet.clear(); + CScript scriptRet; + uint160 h160; + ret.clear(); vector<valtype> vSolutions; if (!Solver(scriptPubKey, whichTypeRet, vSolutions)) @@ -79,62 +81,142 @@ static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptP return false; case TX_PUBKEY: keyID = CPubKey(vSolutions[0]).GetID(); - return Sign1(keyID, creator, scriptPubKey, scriptSigRet); + return Sign1(keyID, creator, scriptPubKey, ret, sigversion); case TX_PUBKEYHASH: keyID = CKeyID(uint160(vSolutions[0])); - if (!Sign1(keyID, creator, scriptPubKey, scriptSigRet)) + if (!Sign1(keyID, creator, scriptPubKey, ret, sigversion)) return false; else { CPubKey vch; creator.KeyStore().GetPubKey(keyID, vch); - scriptSigRet << ToByteVector(vch); + ret.push_back(ToByteVector(vch)); } return true; case TX_SCRIPTHASH: - return creator.KeyStore().GetCScript(uint160(vSolutions[0]), scriptSigRet); + if (creator.KeyStore().GetCScript(uint160(vSolutions[0]), scriptRet)) { + ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end())); + return true; + } + return false; case TX_MULTISIG: - scriptSigRet << OP_0; // workaround CHECKMULTISIG bug - return (SignN(vSolutions, creator, scriptPubKey, scriptSigRet)); + ret.push_back(valtype()); // workaround CHECKMULTISIG bug + return (SignN(vSolutions, creator, scriptPubKey, ret, sigversion)); + + case TX_WITNESS_V0_KEYHASH: + ret.push_back(vSolutions[0]); + return true; + + case TX_WITNESS_V0_SCRIPTHASH: + CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(h160.begin()); + if (creator.KeyStore().GetCScript(h160, scriptRet)) { + ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end())); + return true; + } + return false; + + default: + return false; } - return false; } -bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPubKey, CScript& scriptSig) +static CScript PushAll(const vector<valtype>& values) { + CScript result; + BOOST_FOREACH(const valtype& v, values) { + if (v.size() == 0) { + result << OP_0; + } else if (v.size() == 1 && v[0] >= 1 && v[0] <= 16) { + result << CScript::EncodeOP_N(v[0]); + } else { + result << v; + } + } + return result; +} + +bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPubKey, SignatureData& sigdata) +{ + CScript script = fromPubKey; + bool solved = true; + std::vector<valtype> result; txnouttype whichType; - if (!SignStep(creator, fromPubKey, scriptSig, whichType)) - return false; + solved = SignStep(creator, script, result, whichType, SIGVERSION_BASE); + bool P2SH = false; + CScript subscript; + sigdata.scriptWitness.stack.clear(); - if (whichType == TX_SCRIPTHASH) + if (solved && whichType == TX_SCRIPTHASH) { - // Solver returns the subscript that need to be evaluated; + // Solver returns the subscript that needs to be evaluated; // the final scriptSig is the signatures from that // and then the serialized subscript: - CScript subscript = scriptSig; + script = subscript = CScript(result[0].begin(), result[0].end()); + solved = solved && SignStep(creator, script, result, whichType, SIGVERSION_BASE) && whichType != TX_SCRIPTHASH; + P2SH = true; + } + if (solved && whichType == TX_WITNESS_V0_KEYHASH) + { + CScript witnessscript; + witnessscript << OP_DUP << OP_HASH160 << ToByteVector(result[0]) << OP_EQUALVERIFY << OP_CHECKSIG; txnouttype subType; - bool fSolved = - SignStep(creator, subscript, scriptSig, subType) && subType != TX_SCRIPTHASH; - // Append serialized subscript whether or not it is completely signed: - scriptSig << valtype(subscript.begin(), subscript.end()); - if (!fSolved) return false; + solved = solved && SignStep(creator, witnessscript, result, subType, SIGVERSION_WITNESS_V0); + sigdata.scriptWitness.stack = result; + result.clear(); + } + else if (solved && whichType == TX_WITNESS_V0_SCRIPTHASH) + { + CScript witnessscript(result[0].begin(), result[0].end()); + txnouttype subType; + solved = solved && SignStep(creator, witnessscript, result, subType, SIGVERSION_WITNESS_V0) && subType != TX_SCRIPTHASH && subType != TX_WITNESS_V0_SCRIPTHASH && subType != TX_WITNESS_V0_KEYHASH; + result.push_back(std::vector<unsigned char>(witnessscript.begin(), witnessscript.end())); + sigdata.scriptWitness.stack = result; + result.clear(); } + if (P2SH) { + result.push_back(std::vector<unsigned char>(subscript.begin(), subscript.end())); + } + sigdata.scriptSig = PushAll(result); + // Test solution - return VerifyScript(scriptSig, fromPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, creator.Checker()); + return solved && VerifyScript(sigdata.scriptSig, fromPubKey, &sigdata.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, creator.Checker()); +} + +SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn) +{ + SignatureData data; + assert(tx.vin.size() > nIn); + data.scriptSig = tx.vin[nIn].scriptSig; + if (tx.wit.vtxinwit.size() > nIn) { + data.scriptWitness = tx.wit.vtxinwit[nIn].scriptWitness; + } + return data; +} + +void UpdateTransaction(CMutableTransaction& tx, unsigned int nIn, const SignatureData& data) +{ + assert(tx.vin.size() > nIn); + tx.vin[nIn].scriptSig = data.scriptSig; + if (!data.scriptWitness.IsNull() || tx.wit.vtxinwit.size() > nIn) { + tx.wit.vtxinwit.resize(tx.vin.size()); + tx.wit.vtxinwit[nIn].scriptWitness = data.scriptWitness; + } } -bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, int nHashType) +bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType) { assert(nIn < txTo.vin.size()); - CTxIn& txin = txTo.vin[nIn]; CTransaction txToConst(txTo); - TransactionSignatureCreator creator(&keystore, &txToConst, nIn, nHashType); + TransactionSignatureCreator creator(&keystore, &txToConst, nIn, amount, nHashType); - return ProduceSignature(creator, fromPubKey, txin.scriptSig); + SignatureData sigdata; + bool ret = ProduceSignature(creator, fromPubKey, sigdata); + UpdateTransaction(txTo, nIn, sigdata); + return ret; } bool SignSignature(const CKeyStore &keystore, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType) @@ -144,20 +226,12 @@ bool SignSignature(const CKeyStore &keystore, const CTransaction& txFrom, CMutab assert(txin.prevout.n < txFrom.vout.size()); const CTxOut& txout = txFrom.vout[txin.prevout.n]; - return SignSignature(keystore, txout.scriptPubKey, txTo, nIn, nHashType); -} - -static CScript PushAll(const vector<valtype>& values) -{ - CScript result; - BOOST_FOREACH(const valtype& v, values) - result << v; - return result; + return SignSignature(keystore, txout.scriptPubKey, txTo, nIn, txout.nValue, nHashType); } -static CScript CombineMultisig(const CScript& scriptPubKey, const BaseSignatureChecker& checker, +static vector<valtype> CombineMultisig(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const vector<valtype>& vSolutions, - const vector<valtype>& sigs1, const vector<valtype>& sigs2) + const vector<valtype>& sigs1, const vector<valtype>& sigs2, SigVersion sigversion) { // Combine all the signatures we've got: set<valtype> allsigs; @@ -185,7 +259,7 @@ static CScript CombineMultisig(const CScript& scriptPubKey, const BaseSignatureC if (sigs.count(pubkey)) continue; // Already got a sig for this pubkey - if (checker.CheckSig(sig, pubkey, scriptPubKey)) + if (checker.CheckSig(sig, pubkey, scriptPubKey, sigversion)) { sigs[pubkey] = sig; break; @@ -194,87 +268,126 @@ static CScript CombineMultisig(const CScript& scriptPubKey, const BaseSignatureC } // Now build a merged CScript: unsigned int nSigsHave = 0; - CScript result; result << OP_0; // pop-one-too-many workaround + std::vector<valtype> result; result.push_back(valtype()); // pop-one-too-many workaround for (unsigned int i = 0; i < nPubKeys && nSigsHave < nSigsRequired; i++) { if (sigs.count(vSolutions[i+1])) { - result << sigs[vSolutions[i+1]]; + result.push_back(sigs[vSolutions[i+1]]); ++nSigsHave; } } // Fill any missing with OP_0: for (unsigned int i = nSigsHave; i < nSigsRequired; i++) - result << OP_0; + result.push_back(valtype()); return result; } -static CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, +namespace +{ +struct Stacks +{ + std::vector<valtype> script; + std::vector<valtype> witness; + + Stacks() {} + explicit Stacks(const std::vector<valtype>& scriptSigStack_) : script(scriptSigStack_), witness() {} + explicit Stacks(const SignatureData& data) : witness(data.scriptWitness.stack) { + EvalScript(script, data.scriptSig, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker(), SIGVERSION_BASE); + } + + SignatureData Output() const { + SignatureData result; + result.scriptSig = PushAll(script); + result.scriptWitness.stack = witness; + return result; + } +}; +} + +static Stacks CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const txnouttype txType, const vector<valtype>& vSolutions, - vector<valtype>& sigs1, vector<valtype>& sigs2) + Stacks sigs1, Stacks sigs2, SigVersion sigversion) { switch (txType) { case TX_NONSTANDARD: case TX_NULL_DATA: // Don't know anything about this, assume bigger one is correct: - if (sigs1.size() >= sigs2.size()) - return PushAll(sigs1); - return PushAll(sigs2); + if (sigs1.script.size() >= sigs2.script.size()) + return sigs1; + return sigs2; case TX_PUBKEY: case TX_PUBKEYHASH: // Signatures are bigger than placeholders or empty scripts: - if (sigs1.empty() || sigs1[0].empty()) - return PushAll(sigs2); - return PushAll(sigs1); + if (sigs1.script.empty() || sigs1.script[0].empty()) + return sigs2; + return sigs1; + case TX_WITNESS_V0_KEYHASH: + // Signatures are bigger than placeholders or empty scripts: + if (sigs1.witness.empty() || sigs1.witness[0].empty()) + return sigs2; + return sigs1; case TX_SCRIPTHASH: - if (sigs1.empty() || sigs1.back().empty()) - return PushAll(sigs2); - else if (sigs2.empty() || sigs2.back().empty()) - return PushAll(sigs1); + if (sigs1.script.empty() || sigs1.script.back().empty()) + return sigs2; + else if (sigs2.script.empty() || sigs2.script.back().empty()) + return sigs1; else { // Recur to combine: - valtype spk = sigs1.back(); + valtype spk = sigs1.script.back(); CScript pubKey2(spk.begin(), spk.end()); txnouttype txType2; vector<vector<unsigned char> > vSolutions2; Solver(pubKey2, txType2, vSolutions2); - sigs1.pop_back(); - sigs2.pop_back(); - CScript result = CombineSignatures(pubKey2, checker, txType2, vSolutions2, sigs1, sigs2); - result << spk; + sigs1.script.pop_back(); + sigs2.script.pop_back(); + Stacks result = CombineSignatures(pubKey2, checker, txType2, vSolutions2, sigs1, sigs2, sigversion); + result.script.push_back(spk); return result; } case TX_MULTISIG: - return CombineMultisig(scriptPubKey, checker, vSolutions, sigs1, sigs2); + return Stacks(CombineMultisig(scriptPubKey, checker, vSolutions, sigs1.script, sigs2.script, sigversion)); + case TX_WITNESS_V0_SCRIPTHASH: + if (sigs1.witness.empty() || sigs1.witness.back().empty()) + return sigs2; + else if (sigs2.witness.empty() || sigs2.witness.back().empty()) + return sigs1; + else + { + // Recur to combine: + CScript pubKey2(sigs1.witness.back().begin(), sigs1.witness.back().end()); + txnouttype txType2; + vector<valtype> vSolutions2; + Solver(pubKey2, txType2, vSolutions2); + sigs1.witness.pop_back(); + sigs1.script = sigs1.witness; + sigs1.witness.clear(); + sigs2.witness.pop_back(); + sigs2.script = sigs2.witness; + sigs2.witness.clear(); + Stacks result = CombineSignatures(pubKey2, checker, txType2, vSolutions2, sigs1, sigs2, SIGVERSION_WITNESS_V0); + result.witness = result.script; + result.script.clear(); + result.witness.push_back(valtype(pubKey2.begin(), pubKey2.end())); + return result; + } + default: + return Stacks(); } - - return CScript(); } -CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, - const CScript& scriptSig1, const CScript& scriptSig2) -{ - TransactionSignatureChecker checker(&txTo, nIn); - return CombineSignatures(scriptPubKey, checker, scriptSig1, scriptSig2); -} - -CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, - const CScript& scriptSig1, const CScript& scriptSig2) +SignatureData CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, + const SignatureData& scriptSig1, const SignatureData& scriptSig2) { txnouttype txType; vector<vector<unsigned char> > vSolutions; Solver(scriptPubKey, txType, vSolutions); - vector<valtype> stack1; - EvalScript(stack1, scriptSig1, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker()); - vector<valtype> stack2; - EvalScript(stack2, scriptSig2, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker()); - - return CombineSignatures(scriptPubKey, checker, txType, vSolutions, stack1, stack2); + return CombineSignatures(scriptPubKey, checker, txType, vSolutions, Stacks(scriptSig1), Stacks(scriptSig2), SIGVERSION_BASE).Output(); } namespace { @@ -284,7 +397,7 @@ class DummySignatureChecker : public BaseSignatureChecker public: DummySignatureChecker() {} - bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const + bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const { return true; } @@ -297,7 +410,7 @@ const BaseSignatureChecker& DummySignatureCreator::Checker() const return dummyChecker; } -bool DummySignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const +bool DummySignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const { // Create a dummy signature that is a valid DER-encoding vchSig.assign(72, '\000'); diff --git a/src/script/sign.h b/src/script/sign.h index 47a9cde7f4..6404b4523e 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -27,7 +27,7 @@ public: virtual const BaseSignatureChecker& Checker() const =0; /** Create a singular (non-script) signature. */ - virtual bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const =0; + virtual bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const =0; }; /** A signature creator for transactions. */ @@ -35,12 +35,20 @@ class TransactionSignatureCreator : public BaseSignatureCreator { const CTransaction* txTo; unsigned int nIn; int nHashType; + CAmount amount; const TransactionSignatureChecker checker; public: - TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, int nHashTypeIn=SIGHASH_ALL); + TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn=SIGHASH_ALL); const BaseSignatureChecker& Checker() const { return checker; } - bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const; + bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const; +}; + +class MutableTransactionSignatureCreator : public TransactionSignatureCreator { + CTransaction tx; + +public: + MutableTransactionSignatureCreator(const CKeyStore* keystoreIn, const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amount, int nHashTypeIn) : TransactionSignatureCreator(keystoreIn, &tx, nInIn, amount, nHashTypeIn), tx(*txToIn) {} }; /** A signature creator that just produces 72-byte empty signatyres. */ @@ -48,20 +56,29 @@ class DummySignatureCreator : public BaseSignatureCreator { public: DummySignatureCreator(const CKeyStore* keystoreIn) : BaseSignatureCreator(keystoreIn) {} const BaseSignatureChecker& Checker() const; - bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const; + bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const; +}; + +struct SignatureData { + CScript scriptSig; + CScriptWitness scriptWitness; + + SignatureData() {} + explicit SignatureData(const CScript& script) : scriptSig(script) {} }; /** Produce a script signature using a generic signature creator. */ -bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& scriptPubKey, CScript& scriptSig); +bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& scriptPubKey, SignatureData& sigdata); /** Produce a script signature for a transaction. */ -bool SignSignature(const CKeyStore& keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL); -bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL); +bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType); +bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType); /** Combine two script signatures using a generic signature checker, intelligently, possibly with OP_0 placeholders. */ -CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const CScript& scriptSig1, const CScript& scriptSig2); +SignatureData CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const SignatureData& scriptSig1, const SignatureData& scriptSig2); -/** Combine two script signatures on transactions. */ -CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2); +/** Extract signature data from a transaction, and insert it. */ +SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn); +void UpdateTransaction(CMutableTransaction& tx, unsigned int nIn, const SignatureData& data); #endif // BITCOIN_SCRIPT_SIGN_H diff --git a/src/script/standard.cpp b/src/script/standard.cpp index 67b6af327a..bb178f49fe 100644 --- a/src/script/standard.cpp +++ b/src/script/standard.cpp @@ -31,6 +31,8 @@ const char* GetTxnOutputType(txnouttype t) case TX_SCRIPTHASH: return "scripthash"; case TX_MULTISIG: return "multisig"; case TX_NULL_DATA: return "nulldata"; + case TX_WITNESS_V0_KEYHASH: return "witness_v0_keyhash"; + case TX_WITNESS_V0_SCRIPTHASH: return "witness_v0_scripthash"; } return NULL; } @@ -66,6 +68,22 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi return true; } + int witnessversion; + std::vector<unsigned char> witnessprogram; + if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) { + if (witnessversion == 0 && witnessprogram.size() == 20) { + typeRet = TX_WITNESS_V0_KEYHASH; + vSolutionsRet.push_back(witnessprogram); + return true; + } + if (witnessversion == 0 && witnessprogram.size() == 32) { + typeRet = TX_WITNESS_V0_SCRIPTHASH; + vSolutionsRet.push_back(witnessprogram); + return true; + } + return false; + } + // Provably prunable, data-carrying output // // So long as script passes the IsUnspendable() test and all but the first @@ -282,3 +300,26 @@ CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys) script << CScript::EncodeOP_N(keys.size()) << OP_CHECKMULTISIG; return script; } + +CScript GetScriptForWitness(const CScript& redeemscript) +{ + CScript ret; + + txnouttype typ; + std::vector<std::vector<unsigned char> > vSolutions; + if (Solver(redeemscript, typ, vSolutions)) { + if (typ == TX_PUBKEY) { + unsigned char h160[20]; + CHash160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(h160); + ret << OP_0 << std::vector<unsigned char>(&h160[0], &h160[20]); + return ret; + } else if (typ == TX_PUBKEYHASH) { + ret << OP_0 << vSolutions[0]; + return ret; + } + } + uint256 hash; + CSHA256().Write(&redeemscript[0], redeemscript.size()).Finalize(hash.begin()); + ret << OP_0 << ToByteVector(hash); + return ret; +} diff --git a/src/script/standard.h b/src/script/standard.h index f348da8e19..72aaea0b7b 100644 --- a/src/script/standard.h +++ b/src/script/standard.h @@ -51,6 +51,8 @@ enum txnouttype TX_SCRIPTHASH, TX_MULTISIG, TX_NULL_DATA, + TX_WITNESS_V0_SCRIPTHASH, + TX_WITNESS_V0_KEYHASH, }; class CNoDestination { @@ -77,5 +79,6 @@ bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std:: CScript GetScriptForDestination(const CTxDestination& dest); CScript GetScriptForRawPubKey(const CPubKey& pubkey); CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys); +CScript GetScriptForWitness(const CScript& redeemscript); #endif // BITCOIN_SCRIPT_STANDARD_H diff --git a/src/streams.h b/src/streams.h index ed14f3f412..7132364eb1 100644 --- a/src/streams.h +++ b/src/streams.h @@ -22,6 +22,39 @@ #include <utility> #include <vector> +template<typename Stream> +class OverrideStream +{ + Stream* stream; +public: + const int nType; + const int nVersion; + + OverrideStream(Stream* stream_, int nType_, int nVersion_) : stream(stream_), nType(nType_), nVersion(nVersion_) {} + + template<typename T> + OverrideStream<Stream>& operator<<(const T& obj) + { + // Serialize to this stream + ::Serialize(*this->stream, obj, nType, nVersion); + return (*this); + } + + template<typename T> + OverrideStream<Stream>& operator>>(T& obj) + { + // Unserialize from this stream + ::Unserialize(*this->stream, obj, nType, nVersion); + return (*this); + } +}; + +template<typename S> +OverrideStream<S> WithOrVersion(S* s, int nVersionFlag) +{ + return OverrideStream<S>(s, s->GetType(), s->GetVersion() | nVersionFlag); +} + /** Double ended buffer combining vector and stream-like interfaces. * * >> and << read and write unformatted data using the above serialization templates. diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp index 93f7ae09da..a8c5f95ace 100644 --- a/src/test/DoS_tests.cpp +++ b/src/test/DoS_tests.cpp @@ -148,7 +148,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans) tx.vout.resize(1); tx.vout[0].nValue = 1*CENT; tx.vout[0].scriptPubKey = GetScriptForDestination(key.GetPubKey().GetID()); - SignSignature(keystore, txPrev, tx, 0); + SignSignature(keystore, txPrev, tx, 0, SIGHASH_ALL); AddOrphanTx(tx, i); } @@ -168,7 +168,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans) tx.vin[j].prevout.n = j; tx.vin[j].prevout.hash = txPrev.GetHash(); } - SignSignature(keystore, txPrev, tx, 0); + SignSignature(keystore, txPrev, tx, 0, SIGHASH_ALL); // Re-use same signature for other inputs // (they don't have to be valid for this test) for (unsigned int j = 1; j < tx.vin.size(); j++) diff --git a/src/test/data/script_tests.json b/src/test/data/script_tests.json index 0bdac182e0..9b81e0c77d 100644 --- a/src/test/data/script_tests.json +++ b/src/test/data/script_tests.json @@ -1,5 +1,5 @@ [ -["Format is: [scriptSig, scriptPubKey, flags, expected_scripterror, ... comments]"], +["Format is: [[wit..., amount]?, scriptSig, scriptPubKey, flags, expected_scripterror, ... comments]"], ["It is evaluated as if there was a crediting coinbase transaction with two 0"], ["pushes as scriptSig, and one output of 0 satoshi and given scriptPubKey,"], ["followed by a spending transaction which spends this output as only input (and"], @@ -1253,6 +1253,12 @@ ["0x17 0x3014021077777777777777777777777777777777020001", "0 CHECKSIG NOT", "DERSIG", "SIG_DER", "Zero-length S is incorrectly encoded for DERSIG"], ["0x27 0x302402107777777777777777777777777777777702108777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "SIG_DER", "Negative S is incorrectly encoded for DERSIG"], +["Some basic segwit checks"], +[["00", 0.00000000 ], "", "0 0x206e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d", "P2SH,WITNESS", "EVAL_FALSE", "Invalid witness script"], +[["51", 0.00000000 ], "", "0 0x206e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d", "P2SH,WITNESS", "WITNESS_PROGRAM_MISMATCH", "Witness script hash mismatch"], +[["00", 0.00000000 ], "", "0 0x206e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d", "", "OK", "Invalid witness script without WITNESS"], +[["51", 0.00000000 ], "", "0 0x206e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d", "", "OK", "Witness script hash mismatch without WITNESS"], + ["Automatically generated test cases"], [ "0x47 0x304402200a5c6163f07b8d3b013c4d1d6dba25e780b39658d79ba37af7057a3b7f15ffa102201fd9b4eaa9943f734928b99a83592c2e7bf342ea2680f6a2bb705167966b742001", @@ -1828,6 +1834,289 @@ "OK", "P2SH with CLEANSTACK" ], +[ + [ + "304402200d461c140cfdfcf36b94961db57ae8c18d1cb80e9d95a9e47ac22470c1bf125502201c8dc1cbfef6a3ef90acbbb992ca22fe9466ee6f9d4898eda277a7ac3ab4b25101", + "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac", + 0.00000001 + ], + "", + "0 0x20 0xb95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "P2SH,WITNESS", + "OK", + "Basic P2WSH" +], +[ + [ + "304402201e7216e5ccb3b61d46946ec6cc7e8c4e0117d13ac2fd4b152197e4805191c74202203e9903e33e84d9ee1dd13fb057afb7ccfb47006c23f6a067185efbc9dd780fc501", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000001 + ], + "", + "0 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5", + "P2SH,WITNESS", + "OK", + "Basic P2WPKH" +], +[ + [ + "3044022066e02c19a513049d49349cf5311a1b012b7c4fae023795a18ab1d91c23496c22022025e216342c8e07ce8ef51e8daee88f84306a9de66236cab230bb63067ded1ad301", + "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac", + 0.00000001 + ], + "0x22 0x0020b95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "HASH160 0x14 0xf386c2ba255cc56d20cfa6ea8b062f8b59945518 EQUAL", + "P2SH,WITNESS", + "OK", + "Basic P2SH(P2WSH)" +], +[ + [ + "304402200929d11561cd958460371200f82e9cae64c727a495715a31828e27a7ad57b36d0220361732ced04a6f97351ecca21a56d0b8cd4932c1da1f8f569a2b68e5e48aed7801", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000001 + ], + "0x16 0x001491b24bf9f5288532960ac687abb035127b1d28a5", + "HASH160 0x14 0x17743beb429c55c942d2ec703b98c4d57c2df5c6 EQUAL", + "P2SH,WITNESS", + "OK", + "Basic P2SH(P2WPKH)" +], +[ + [ + "304402202589f0512cb2408fb08ed9bd24f85eb3059744d9e4f2262d0b7f1338cff6e8b902206c0978f449693e0578c71bc543b11079fd0baae700ee5e9a6bee94db490af9fc01", + "41048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26cafac", + 0.00000000 + ], + "", + "0 0x20 0xac8ebd9e52c17619a381fa4f71aebb696087c6ef17c960fd0587addad99c0610", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2WSH with the wrong key" +], +[ + [ + "304402206ef7fdb2986325d37c6eb1a8bb24aeb46dede112ed8fc76c7d7500b9b83c0d3d02201edc2322c794fe2d6b0bd73ed319e714aa9b86d8891961530d5c9b7156b60d4e01", + "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf", + 0.00000000 + ], + "", + "0 0x14 0x7cf9c846cd4882efec4bf07e44ebdad495c94f4b", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2WPKH with the wrong key" +], +[ + [ + "30440220069ea3581afaf8187f63feee1fd2bd1f9c0dc71ea7d6e8a8b07ee2ebcf824bf402201a4fdef4c532eae59223be1eda6a397fc835142d4ddc6c74f4aa85b766a5c16f01", + "41048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26cafac", + 0.00000000 + ], + "0x22 0x0020ac8ebd9e52c17619a381fa4f71aebb696087c6ef17c960fd0587addad99c0610", + "HASH160 0x14 0x61039a003883787c0d6ebc66d97fdabe8e31449d EQUAL", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2SH(P2WSH) with the wrong key" +], +[ + [ + "304402204209e49457c2358f80d0256bc24535b8754c14d08840fc4be762d6f5a0aed80b02202eaf7d8fc8d62f60c67adcd99295528d0e491ae93c195cec5a67e7a09532a88001", + "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf", + 0.00000000 + ], + "0x16 0x00147cf9c846cd4882efec4bf07e44ebdad495c94f4b", + "HASH160 0x14 0x4e0c2aed91315303fc6a1dc4c7bc21c88f75402e EQUAL", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2SH(P2WPKH) with the wrong key" +], +[ + [ + "304402202589f0512cb2408fb08ed9bd24f85eb3059744d9e4f2262d0b7f1338cff6e8b902206c0978f449693e0578c71bc543b11079fd0baae700ee5e9a6bee94db490af9fc01", + "41048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26cafac", + 0.00000000 + ], + "", + "0 0x20 0xac8ebd9e52c17619a381fa4f71aebb696087c6ef17c960fd0587addad99c0610", + "P2SH", + "OK", + "Basic P2WSH with the wrong key but no WITNESS" +], +[ + [ + "304402206ef7fdb2986325d37c6eb1a8bb24aeb46dede112ed8fc76c7d7500b9b83c0d3d02201edc2322c794fe2d6b0bd73ed319e714aa9b86d8891961530d5c9b7156b60d4e01", + "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf", + 0.00000000 + ], + "", + "0 0x14 0x7cf9c846cd4882efec4bf07e44ebdad495c94f4b", + "P2SH", + "OK", + "Basic P2WPKH with the wrong key but no WITNESS" +], +[ + [ + "30440220069ea3581afaf8187f63feee1fd2bd1f9c0dc71ea7d6e8a8b07ee2ebcf824bf402201a4fdef4c532eae59223be1eda6a397fc835142d4ddc6c74f4aa85b766a5c16f01", + "41048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26cafac", + 0.00000000 + ], + "0x22 0x0020ac8ebd9e52c17619a381fa4f71aebb696087c6ef17c960fd0587addad99c0610", + "HASH160 0x14 0x61039a003883787c0d6ebc66d97fdabe8e31449d EQUAL", + "P2SH", + "OK", + "Basic P2SH(P2WSH) with the wrong key but no WITNESS" +], +[ + [ + "304402204209e49457c2358f80d0256bc24535b8754c14d08840fc4be762d6f5a0aed80b02202eaf7d8fc8d62f60c67adcd99295528d0e491ae93c195cec5a67e7a09532a88001", + "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf", + 0.00000000 + ], + "0x16 0x00147cf9c846cd4882efec4bf07e44ebdad495c94f4b", + "HASH160 0x14 0x4e0c2aed91315303fc6a1dc4c7bc21c88f75402e EQUAL", + "P2SH", + "OK", + "Basic P2SH(P2WPKH) with the wrong key but no WITNESS" +], +[ + [ + "3044022066faa86e74e8b30e82691b985b373de4f9e26dc144ec399c4f066aa59308e7c202204712b86f28c32503faa051dbeabff2c238ece861abc36c5e0b40b1139ca222f001", + "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac", + 0.00000000 + ], + "", + "0 0x20 0xb95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2WSH with wrong value" +], +[ + [ + "304402203b3389b87448d7dfdb5e82fb854fcf92d7925f9938ea5444e36abef02c3d6a9602202410bc3265049abb07fd2e252c65ab7034d95c9d5acccabe9fadbdc63a52712601", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000000 + ], + "", + "0 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2WPKH with wrong value" +], +[ + [ + "3044022000a30c4cfc10e4387be528613575434826ad3c15587475e0df8ce3b1746aa210022008149265e4f8e9dafe1f3ea50d90cb425e9e40ea7ebdd383069a7cfa2b77004701", + "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac", + 0.00000000 + ], + "0x22 0x0020b95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "HASH160 0x14 0xf386c2ba255cc56d20cfa6ea8b062f8b59945518 EQUAL", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2SH(P2WSH) with wrong value" +], +[ + [ + "304402204fc3a2cd61a47913f2a5f9107d0ad4a504c7b31ee2d6b3b2f38c2b10ee031e940220055d58b7c3c281aaa381d8f486ac0f3e361939acfd568046cb6a311cdfa974cf01", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000000 + ], + "0x16 0x001491b24bf9f5288532960ac687abb035127b1d28a5", + "HASH160 0x14 0x17743beb429c55c942d2ec703b98c4d57c2df5c6 EQUAL", + "P2SH,WITNESS", + "EVAL_FALSE", + "Basic P2SH(P2WPKH) with wrong value" +], +[ + [ + "304402205ae57ae0534c05ca9981c8a6cdf353b505eaacb7375f96681a2d1a4ba6f02f84022056248e68643b7d8ce7c7d128c9f1f348bcab8be15d094ad5cadd24251a28df8001", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000000 + ], + "", + "1 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5", + "DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM,P2SH,WITNESS", + "DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM", + "P2WPKH with future witness version" +], +[ + [ + "3044022064100ca0e2a33332136775a86cd83d0230e58b9aebb889c5ac952abff79a46ef02205f1bf900e022039ad3091bdaf27ac2aef3eae9ed9f190d821d3e508405b9513101", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000000 + ], + "", + "0 0x1f 0xb34b78da162751647974d5cb7410aa428ad339dbf7d1e16e833f68a0cbf1c3", + "P2SH,WITNESS", + "WITNESS_PROGRAM_WRONG_LENGTH", + "P2WPKH with wrong witness program length" +], +[ + "", + "0 0x20 0xb95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "P2SH,WITNESS", + "WITNESS_PROGRAM_WITNESS_EMPTY", + "P2WSH with empty witness" +], +[ + [ + "3044022039105b995a5f448639a997a5c90fda06f50b49df30c3bdb6663217bf79323db002206fecd54269dec569fcc517178880eb58bb40f381a282bb75766ff3637d5f4b4301", + "400479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac", + 0.00000000 + ], + "", + "0 0x20 0xb95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64", + "P2SH,WITNESS", + "WITNESS_PROGRAM_MISMATCH", + "P2WSH with witness program mismatch" +], +[ + [ + "304402201a96950593cb0af32d080b0f193517f4559241a8ebd1e95e414533ad64a3f423022047f4f6d3095c23235bdff3aeff480d0529c027a3f093cb265b7cbf148553b85101", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + "", + 0.00000000 + ], + "", + "0 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5", + "P2SH,WITNESS", + "WITNESS_PROGRAM_MISMATCH", + "P2WPKH with witness program mismatch" +], +[ + [ + "304402201a96950593cb0af32d080b0f193517f4559241a8ebd1e95e414533ad64a3f423022047f4f6d3095c23235bdff3aeff480d0529c027a3f093cb265b7cbf148553b85101", + "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8", + 0.00000000 + ], + "11", + "0 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5", + "P2SH,WITNESS", + "WITNESS_MALLEATED", + "P2WPKH with non-empty scriptSig" +], +[ + [ + "304402204209e49457c2358f80d0256bc24535b8754c14d08840fc4be762d6f5a0aed80b02202eaf7d8fc8d62f60c67adcd99295528d0e491ae93c195cec5a67e7a09532a88001", + "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf", + 0.00000000 + ], + "11 0x16 0x00147cf9c846cd4882efec4bf07e44ebdad495c94f4b", + "HASH160 0x14 0x4e0c2aed91315303fc6a1dc4c7bc21c88f75402e EQUAL", + "P2SH,WITNESS", + "WITNESS_MALLEATED_P2SH", + "P2SH(P2WPKH) with superfluous push in scriptSig" +], +[ + [ + "", + 0.00000000 + ], + "0x47 0x304402200a5c6163f07b8d3b013c4d1d6dba25e780b39658d79ba37af7057a3b7f15ffa102201fd9b4eaa9943f734928b99a83592c2e7bf342ea2680f6a2bb705167966b742001", + "0x41 0x0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 CHECKSIG", + "P2SH,WITNESS", + "WITNESS_UNEXPECTED", + "P2PK with witness" +], ["CHECKSEQUENCEVERIFY tests"], ["", "NOP3", "CHECKSEQUENCEVERIFY", "INVALID_STACK_OPERATION", "CSV automatically fails on a empty stack"], diff --git a/src/test/data/tx_invalid.json b/src/test/data/tx_invalid.json index 2d7d9b9585..05502a83f7 100644 --- a/src/test/data/tx_invalid.json +++ b/src/test/data/tx_invalid.json @@ -30,10 +30,6 @@ "010000000100010000000000000000000000000000000000000000000000000000000000000000000009085768617420697320ffffffff010000000000000000015100000000", "P2SH"], ["Tests for CheckTransaction()"], -["No inputs"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "HASH160 0x14 0x7a052c840ba73af26755de42cf01cc9e0a49fef0 EQUAL"]], -"0100000000010000000000000000015100000000", "P2SH"], - ["No outputs"], [[["0000000000000000000000000000000000000000000000000000000000000100", 0, "HASH160 0x14 0x05ab9e14d983742513f0f451e105ffb4198d1dd4 EQUAL"]], "01000000010001000000000000000000000000000000000000000000000000000000000000000000006d483045022100f16703104aab4e4088317c862daec83440242411b039d14280e03dd33b487ab802201318a7be236672c5c56083eb7a5a195bc57a40af7923ff8545016cd3b571e2a601232103c40e5d339df3f30bf753e7e04450ae4ef76c9e45587d1d993bdc4cd06f0651c7acffffffff0000000000", "P2SH"], @@ -255,5 +251,68 @@ [[["0000000000000000000000000000000000000000000000000000000000000100", 0, "4194304 NOP3 1"]], "010000000100010000000000000000000000000000000000000000000000000000000000000000000000000040000100000000000000000000000000", "P2SH,CHECKSEQUENCEVERIFY"], +["Unknown witness program version (with DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x60 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"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", "P2SH,WITNESS,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"], + +["Unknown length for witness program v0"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x15 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3fff", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash Single|AnyoneCanPay (same index output value changed)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash None|AnyoneCanPay (input sequence changed)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"0100000000010300010000000000000000000000000000000000000000000000000000000000000000000000ffffffff000100000000000000000000000000000000000000000000000000000000000001000000000100000000010000000000000000000000000000000000000000000000000000000000000200000000ffffffff00000248304502210091b32274295c2a3fa02f5bce92fb2789e3fc6ea947fbe1a76e52ea3f4ef2381a022079ad72aefa3837a2e0c033a8652a59731da05fa4a813f4fc48e87c075037256b822103596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc710000000000", "P2SH,WITNESS"], + +["Witness with SigHash All|AnyoneCanPay (third output value changed)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"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", "P2SH,WITNESS"], + +["Witness with a push of 521 bytes"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x20 0x33198a9bfef674ebddb9ffaa52928017b8472791e54c609cb95f278ac6b1e349", 1000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff010000000000000000015102fd0902000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002755100000000", "P2SH,WITNESS"], + +["Witness with unknown version which push false on the stack should be invalid (even without DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x02 0x0000", 2000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff010000000000000000015101010100000000", "P2SH,WITNESS"], + +["Witness program should leave clean stack"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x20 0x2f04a3aa051f1f60d695f6c44c0c3d383973dfd446ace8962664a76bb10e31a8", 2000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01000000000000000001510102515100000000", "P2SH,WITNESS"], + +["Witness v0 with a push of 2 bytes"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x02 0x0001", 2000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff010000000000000000015101040002000100000000", "P2SH,WITNESS"], + +["Unknown witness version with non empty scriptSig"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x02 0x0001", 2000]], +"01000000010001000000000000000000000000000000000000000000000000000000000000000000000151ffffffff010000000000000000015100000000", "P2SH,WITNESS"], + +["Non witness Single|AnyoneCanPay hash input's position (permutation)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1001]], +"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", "P2SH,WITNESS"], + +["P2WSH with a redeem representing a witness scriptPubKey should fail"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x20 0x34b6c399093e06cf9f0f7f660a1abcfe78fcf7b576f43993208edd9518a0ae9b", 1000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff0001045102010100000000", "P2SH,WITNESS"], + +["33 bytes push should be considered a witness scriptPubKey"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x21 0xff25429251b5a84f452230a3c75fd886b7fc5a7865ce4a7bb7a9d7c5be6da3dbff", 1000]], +"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,WITNESS,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"], + ["Make diffs cleaner by leaving a comment here without comma at the end"] ] diff --git a/src/test/data/tx_valid.json b/src/test/data/tx_valid.json index 717ad19549..c9fe4e313a 100644 --- a/src/test/data/tx_valid.json +++ b/src/test/data/tx_valid.json @@ -317,5 +317,175 @@ [[["0000000000000000000000000000000000000000000000000000000000000100", 0, "HASH160 0x14 0x7c17aff532f22beb54069942f9bf567a66133eaf EQUAL"]], "0200000001000100000000000000000000000000000000000000000000000000000000000000000000030251b2010000000100000000000000000000000000", "P2SH,CHECKSEQUENCEVERIFY"], +["Valid P2WPKH (Private key of segwit tests is L5AQtV2HDm4xGsseLokK2VAT2EtYKcTm3c7HwqnJBFt9LdaQULsM)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e8030000000000001976a9144c9c3dfac4207d5d8cb89df5722cb3d712385e3f88ac02483045022100cfb07164b36ba64c1b1e8c7720a56ad64d96f6ef332d3d37f9cb3c96477dc44502200a464cd7a9cf94cd70f66ce4f4f0625ef650052c7afcfe29d7d7e01830ff91ed012103596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc7100000000", "P2SH,WITNESS"], + +["Valid P2WSH"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x20 0xff25429251b5a84f452230a3c75fd886b7fc5a7865ce4a7bb7a9d7c5be6da3db", 1000]], +"0100000000010100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e8030000000000001976a9144c9c3dfac4207d5d8cb89df5722cb3d712385e3f88ac02483045022100aa5d8aa40a90f23ce2c3d11bc845ca4a12acd99cbea37de6b9f6d86edebba8cb022022dedc2aa0a255f74d04c0b76ece2d7c691f9dd11a64a8ac49f62a99c3a05f9d01232103596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71ac00000000", "P2SH,WITNESS"], + +["Valid P2SH(P2WPKH)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "HASH160 0x14 0xfe9c7dacc9fcfbf7e3b7d5ad06aa2b28c5a7b7e3 EQUAL", 1000]], +"01000000000101000100000000000000000000000000000000000000000000000000000000000000000000171600144c9c3dfac4207d5d8cb89df5722cb3d712385e3fffffffff01e8030000000000001976a9144c9c3dfac4207d5d8cb89df5722cb3d712385e3f88ac02483045022100cfb07164b36ba64c1b1e8c7720a56ad64d96f6ef332d3d37f9cb3c96477dc44502200a464cd7a9cf94cd70f66ce4f4f0625ef650052c7afcfe29d7d7e01830ff91ed012103596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc7100000000", "P2SH,WITNESS"], + +["Valid P2SH(P2WSH)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "HASH160 0x14 0x2135ab4f0981830311e35600eebc7376dce3a914 EQUAL", 1000]], 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"0x51", 3000]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash Single (same signature as previous)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], 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3, "0x51", 4100]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash None|AnyoneCanPay (same signature as previous)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3000]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash None"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], +["0000000000000000000000000000000000000000000000000000000000000100", 2, 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3, "0x51", 4100]], +"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", "P2SH,WITNESS"], + +["Witness with SigHash All|AnyoneCanPay (same signature as previous)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], 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"P2SH,WITNESS"], + +["Transaction mixing all SigHash, segwit and normal inputs"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1001], +["0000000000000000000000000000000000000000000000000000000000000100", 2, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1002], +["0000000000000000000000000000000000000000000000000000000000000100", 3, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1003], +["0000000000000000000000000000000000000000000000000000000000000100", 4, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1004], +["0000000000000000000000000000000000000000000000000000000000000100", 5, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1005], +["0000000000000000000000000000000000000000000000000000000000000100", 6, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1006], +["0000000000000000000000000000000000000000000000000000000000000100", 7, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1007], +["0000000000000000000000000000000000000000000000000000000000000100", 8, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1008], +["0000000000000000000000000000000000000000000000000000000000000100", 9, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1009], +["0000000000000000000000000000000000000000000000000000000000000100", 10, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1010], +["0000000000000000000000000000000000000000000000000000000000000100", 11, "DUP HASH160 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f EQUALVERIFY CHECKSIG", 1011]], 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"P2SH,WITNESS"], + +["Unknown version witness program with empty witness"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000]], +"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,WITNESS"], + +["Witness SIGHASH_SINGLE with output out of bound"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x20 0x4d6c2a32c87821d68fc016fca70797abdb80df6cd84651d40a9300c6bad79e62", 1000]], 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"0x60 0x29 0xff25429251b5a84f452230a3c75fd886b7fc5a7865ce4a7bb7a9d7c5be6da3dbff0000000000000000", 1000]], +"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,WITNESS,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"], + +["The witness version must use OP_1 to OP_16 only"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x01 0x10 0x02 0x0001", 1000]], +"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,WITNESS,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"], + +["The witness program push must be canonical"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x4c02 0x0001", 1000]], +"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,WITNESS,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"], + +["Witness Single|AnyoneCanPay does not hash input's position"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1001]], +"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", "P2SH,WITNESS"], + +["Witness Single|AnyoneCanPay does not hash input's position (permutation)"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1001]], +"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", "P2SH,WITNESS"], + +["Non witness Single|AnyoneCanPay hash input's position"], +[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1000], +["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1001]], +"01000000020001000000000000000000000000000000000000000000000000000000000000000000004847304402202a0b4b1294d70540235ae033d78e64b4897ec859c7b6f1b2b1d8a02e1d46006702201445e756d2254b0f1dfda9ab8e1e1bc26df9668077403204f32d16a49a36eb6983ffffffff00010000000000000000000000000000000000000000000000000000000000000100000049483045022100acb96cfdbda6dc94b489fd06f2d720983b5f350e31ba906cdbd800773e80b21c02200d74ea5bdf114212b4bbe9ed82c36d2e369e302dff57cb60d01c428f0bd3daab83ffffffff02e8030000000000000151e903000000000000015100000000", "P2SH,WITNESS"], + +["BIP143 examples: details and private keys are available in BIP143"], +["BIP143 example: P2WSH with OP_CODESEPARATOR and out-of-range SIGHASH_SINGLE."], +[[["6eb316926b1c5d567cd6f5e6a84fec606fc53d7b474526d1fff3948020c93dfe", 0, "0x21 0x036d5c20fa14fb2f635474c1dc4ef5909d4568e5569b79fc94d3448486e14685f8 CHECKSIG", 156250000], +["f825690aee1b3dc247da796cacb12687a5e802429fd291cfd63e010f02cf1508", 0, "0x00 0x20 0x5d1b56b63d714eebe542309525f484b7e9d6f686b3781b6f61ef925d66d6f6a0", 4900000000]], +"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", "P2SH,WITNESS"], + +["BIP143 example: P2WSH with unexecuted OP_CODESEPARATOR and SINGLE|ANYONECANPAY"], +[[["01c0cf7fba650638e55eb91261b183251fbb466f90dff17f10086817c542b5e9", 0, "0x00 0x20 0xba468eea561b26301e4cf69fa34bde4ad60c81e70f059f045ca9a79931004a4d", 16777215], +["1b2a9a426ba603ba357ce7773cb5805cb9c7c2b386d100d1fc9263513188e680", 0, "0x00 0x20 0xd9bbfbe56af7c4b7f960a70d7ea107156913d9e5a26b0a71429df5e097ca6537", 16777215]], +"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", "P2SH,WITNESS"], + +["BIP143 example: Same as the previous example with input-output paris swapped"], +[[["1b2a9a426ba603ba357ce7773cb5805cb9c7c2b386d100d1fc9263513188e680", 0, "0x00 0x20 0xd9bbfbe56af7c4b7f960a70d7ea107156913d9e5a26b0a71429df5e097ca6537", 16777215], +["01c0cf7fba650638e55eb91261b183251fbb466f90dff17f10086817c542b5e9", 0, "0x00 0x20 0xba468eea561b26301e4cf69fa34bde4ad60c81e70f059f045ca9a79931004a4d", 16777215]], +"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", "P2SH,WITNESS"], + +["BIP143 example: P2SH-P2WSH 6-of-6 multisig signed with 6 different SIGHASH types"], +[[["6eb98797a21c6c10aa74edf29d618be109f48a8e94c694f3701e08ca69186436", 1, "HASH160 0x14 0x9993a429037b5d912407a71c252019287b8d27a5 EQUAL", 987654321]], +"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", "P2SH,WITNESS"], + ["Make diffs cleaner by leaving a comment here without comma at the end"] ] diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp index c8b43df26c..033a50f94f 100644 --- a/src/test/mempool_tests.cpp +++ b/src/test/mempool_tests.cpp @@ -2,6 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#include "policy/policy.h" #include "txmempool.h" #include "util.h" @@ -336,7 +337,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest) tx2.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL; tx2.vout[0].nValue = 2 * COIN; pool.addUnchecked(tx2.GetHash(), entry.Fee(20000LL).Priority(9.0).FromTx(tx2)); - uint64_t tx2Size = ::GetSerializeSize(tx2, SER_NETWORK, PROTOCOL_VERSION); + uint64_t tx2Size = GetVirtualTransactionSize(tx2); /* lowest fee */ CMutableTransaction tx3 = CMutableTransaction(); @@ -384,7 +385,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest) tx6.vout.resize(1); tx6.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL; tx6.vout[0].nValue = 20 * COIN; - uint64_t tx6Size = ::GetSerializeSize(tx6, SER_NETWORK, PROTOCOL_VERSION); + uint64_t tx6Size = GetVirtualTransactionSize(tx6); pool.addUnchecked(tx6.GetHash(), entry.Fee(0LL).FromTx(tx6)); BOOST_CHECK_EQUAL(pool.size(), 6); @@ -398,7 +399,7 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest) tx7.vout.resize(1); tx7.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL; tx7.vout[0].nValue = 10 * COIN; - uint64_t tx7Size = ::GetSerializeSize(tx7, SER_NETWORK, PROTOCOL_VERSION); + uint64_t tx7Size = GetVirtualTransactionSize(tx7); /* set the fee to just below tx2's feerate when including ancestor */ CAmount fee = (20000/tx2Size)*(tx7Size + tx6Size) - 1; @@ -467,12 +468,12 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest) BOOST_CHECK(pool.exists(tx2.GetHash())); BOOST_CHECK(pool.exists(tx3.GetHash())); - pool.TrimToSize(::GetSerializeSize(CTransaction(tx1), SER_NETWORK, PROTOCOL_VERSION)); // mempool is limited to tx1's size in memory usage, so nothing fits + pool.TrimToSize(GetVirtualTransactionSize(tx1)); // mempool is limited to tx1's size in memory usage, so nothing fits BOOST_CHECK(!pool.exists(tx1.GetHash())); BOOST_CHECK(!pool.exists(tx2.GetHash())); BOOST_CHECK(!pool.exists(tx3.GetHash())); - CFeeRate maxFeeRateRemoved(25000, ::GetSerializeSize(CTransaction(tx3), SER_NETWORK, PROTOCOL_VERSION) + ::GetSerializeSize(CTransaction(tx2), SER_NETWORK, PROTOCOL_VERSION)); + CFeeRate maxFeeRateRemoved(25000, GetVirtualTransactionSize(tx3) + GetVirtualTransactionSize(tx2)); BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), maxFeeRateRemoved.GetFeePerK() + 1000); CMutableTransaction tx4 = CMutableTransaction(); diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp index ca8d6d2e05..fd581db52e 100644 --- a/src/test/miner_tests.cpp +++ b/src/test/miner_tests.cpp @@ -181,6 +181,9 @@ void TestPackageSelection(const CChainParams& chainparams, CScript scriptPubKey, // NOTE: These tests rely on CreateNewBlock doing its own self-validation! BOOST_AUTO_TEST_CASE(CreateNewBlock_validity) { + // Disable size accounting (CPFP does not support it) + mapArgs["-blockmaxsize"] = strprintf("%u", MAX_BLOCK_SERIALIZED_SIZE); + const CChainParams& chainparams = Params(CBaseChainParams::MAIN); CScript scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG; CBlockTemplate *pblocktemplate; @@ -264,7 +267,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity) hash = tx.GetHash(); bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase // If we do set the # of sig ops in the CTxMemPoolEntry, template creation passes - mempool.addUnchecked(hash, entry.Fee(LOWFEE).Time(GetTime()).SpendsCoinbase(spendsCoinbase).SigOps(20).FromTx(tx)); + mempool.addUnchecked(hash, entry.Fee(LOWFEE).Time(GetTime()).SpendsCoinbase(spendsCoinbase).SigOpsCost(80).FromTx(tx)); tx.vin[0].prevout.hash = hash; } BOOST_CHECK(pblocktemplate = BlockAssembler(chainparams).CreateNewBlock(scriptPubKey)); diff --git a/src/test/multisig_tests.cpp b/src/test/multisig_tests.cpp index d48a68ba54..581b0cee1e 100644 --- a/src/test/multisig_tests.cpp +++ b/src/test/multisig_tests.cpp @@ -26,7 +26,7 @@ BOOST_FIXTURE_TEST_SUITE(multisig_tests, BasicTestingSetup) CScript sign_multisig(CScript scriptPubKey, vector<CKey> keys, CTransaction transaction, int whichIn) { - uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL); + uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL, 0, SIGVERSION_BASE); CScript result; result << OP_0; // CHECKMULTISIG bug workaround @@ -46,6 +46,7 @@ BOOST_AUTO_TEST_CASE(multisig_verify) ScriptError err; CKey key[4]; + CAmount amount = 0; for (int i = 0; i < 4; i++) key[i].MakeNewKey(true); @@ -81,20 +82,20 @@ BOOST_AUTO_TEST_CASE(multisig_verify) keys.assign(1,key[0]); keys.push_back(key[1]); s = sign_multisig(a_and_b, keys, txTo[0], 0); - BOOST_CHECK(VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err)); + BOOST_CHECK(VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); for (int i = 0; i < 4; i++) { keys.assign(1,key[i]); s = sign_multisig(a_and_b, keys, txTo[0], 0); - BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 1: %d", i)); + BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err), strprintf("a&b 1: %d", i)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err)); keys.assign(1,key[1]); keys.push_back(key[i]); s = sign_multisig(a_and_b, keys, txTo[0], 0); - BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 2: %d", i)); + BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err), strprintf("a&b 2: %d", i)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); } @@ -105,18 +106,18 @@ BOOST_AUTO_TEST_CASE(multisig_verify) s = sign_multisig(a_or_b, keys, txTo[1], 0); if (i == 0 || i == 1) { - BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i)); + BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err), strprintf("a|b: %d", i)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } else { - BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i)); + BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err), strprintf("a|b: %d", i)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); } } s.clear(); s << OP_0 << OP_1; - BOOST_CHECK(!VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err)); + BOOST_CHECK(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err)); @@ -128,12 +129,12 @@ BOOST_AUTO_TEST_CASE(multisig_verify) s = sign_multisig(escrow, keys, txTo[2], 0); if (i < j && i < 3 && j < 3) { - BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 1: %d %d", i, j)); + BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount), &err), strprintf("escrow 1: %d %d", i, j)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } else { - BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 2: %d %d", i, j)); + BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount), &err), strprintf("escrow 2: %d %d", i, j)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); } } @@ -302,7 +303,7 @@ BOOST_AUTO_TEST_CASE(multisig_Sign) for (int i = 0; i < 3; i++) { - BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i)); + BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0, SIGHASH_ALL), strprintf("SignSignature %d", i)); } } diff --git a/src/test/policyestimator_tests.cpp b/src/test/policyestimator_tests.cpp index 2b00e6f567..5c902387f1 100644 --- a/src/test/policyestimator_tests.cpp +++ b/src/test/policyestimator_tests.cpp @@ -2,6 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#include "policy/policy.h" #include "policy/fees.h" #include "txmempool.h" #include "uint256.h" @@ -50,7 +51,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates) tx.vin[0].scriptSig = garbage; tx.vout.resize(1); tx.vout[0].nValue=0LL; - CFeeRate baseRate(basefee, ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION)); + CFeeRate baseRate(basefee, GetVirtualTransactionSize(tx)); // Create a fake block std::vector<CTransaction> block; diff --git a/src/test/script_P2SH_tests.cpp b/src/test/script_P2SH_tests.cpp index d10284fe94..5224b57ca4 100644 --- a/src/test/script_P2SH_tests.cpp +++ b/src/test/script_P2SH_tests.cpp @@ -2,6 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#include "core_io.h" #include "key.h" #include "keystore.h" #include "main.h" @@ -42,7 +43,7 @@ Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict, Scri txTo.vin[0].scriptSig = scriptSig; txTo.vout[0].nValue = 1; - return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, MutableTransactionSignatureChecker(&txTo, 0), &err); + return VerifyScript(scriptSig, scriptPubKey, NULL, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, MutableTransactionSignatureChecker(&txTo, 0, txFrom.vout[0].nValue), &err); } @@ -102,7 +103,7 @@ BOOST_AUTO_TEST_CASE(sign) } for (int i = 0; i < 8; i++) { - BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i)); + BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0, SIGHASH_ALL), strprintf("SignSignature %d", i)); } // All of the above should be OK, and the txTos have valid signatures // Check to make sure signature verification fails if we use the wrong ScriptSig: @@ -197,7 +198,7 @@ BOOST_AUTO_TEST_CASE(set) } for (int i = 0; i < 4; i++) { - BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0), strprintf("SignSignature %d", i)); + BOOST_CHECK_MESSAGE(SignSignature(keystore, txFrom, txTo[i], 0, SIGHASH_ALL), strprintf("SignSignature %d", i)); BOOST_CHECK_MESSAGE(IsStandardTx(txTo[i], reason), strprintf("txTo[%d].IsStandard", i)); } } @@ -326,9 +327,9 @@ BOOST_AUTO_TEST_CASE(AreInputsStandard) txTo.vin[i].prevout.n = i; txTo.vin[i].prevout.hash = txFrom.GetHash(); } - BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 0)); - BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 1)); - BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 2)); + BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL)); + BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 1, SIGHASH_ALL)); + BOOST_CHECK(SignSignature(keystore, txFrom, txTo, 2, SIGHASH_ALL)); // SignSignature doesn't know how to sign these. We're // not testing validating signatures, so just create // dummy signatures that DO include the correct P2SH scripts: diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp index 39089f103d..5a9aaf9bc0 100644 --- a/src/test/script_tests.cpp +++ b/src/test/script_tests.cpp @@ -13,6 +13,7 @@ #include "util.h" #include "utilstrencodings.h" #include "test/test_bitcoin.h" +#include "rpc/server.h" #if defined(HAVE_CONSENSUS_LIB) #include "script/bitcoinconsensus.h" @@ -88,7 +89,14 @@ static ScriptErrorDesc script_errors[]={ {SCRIPT_ERR_SIG_NULLDUMMY, "SIG_NULLDUMMY"}, {SCRIPT_ERR_PUBKEYTYPE, "PUBKEYTYPE"}, {SCRIPT_ERR_CLEANSTACK, "CLEANSTACK"}, - {SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS, "DISCOURAGE_UPGRADABLE_NOPS"} + {SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS, "DISCOURAGE_UPGRADABLE_NOPS"}, + {SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM, "DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"}, + {SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH, "WITNESS_PROGRAM_WRONG_LENGTH"}, + {SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY, "WITNESS_PROGRAM_WITNESS_EMPTY"}, + {SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH, "WITNESS_PROGRAM_MISMATCH"}, + {SCRIPT_ERR_WITNESS_MALLEATED, "WITNESS_MALLEATED"}, + {SCRIPT_ERR_WITNESS_MALLEATED_P2SH, "WITNESS_MALLEATED_P2SH"}, + {SCRIPT_ERR_WITNESS_UNEXPECTED, "WITNESS_UNEXPECTED"}, }; const char *FormatScriptError(ScriptError_t err) @@ -111,7 +119,7 @@ ScriptError_t ParseScriptError(const std::string &name) BOOST_FIXTURE_TEST_SUITE(script_tests, BasicTestingSetup) -CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey) +CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey, int nValue = 0) { CMutableTransaction txCredit; txCredit.nVersion = 1; @@ -122,40 +130,52 @@ CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey) txCredit.vin[0].scriptSig = CScript() << CScriptNum(0) << CScriptNum(0); txCredit.vin[0].nSequence = CTxIn::SEQUENCE_FINAL; txCredit.vout[0].scriptPubKey = scriptPubKey; - txCredit.vout[0].nValue = 0; + txCredit.vout[0].nValue = nValue; return txCredit; } -CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CMutableTransaction& txCredit) +CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CScriptWitness& scriptWitness, const CMutableTransaction& txCredit) { CMutableTransaction txSpend; txSpend.nVersion = 1; txSpend.nLockTime = 0; txSpend.vin.resize(1); txSpend.vout.resize(1); + txSpend.wit.vtxinwit.resize(1); + txSpend.wit.vtxinwit[0].scriptWitness = scriptWitness; txSpend.vin[0].prevout.hash = txCredit.GetHash(); txSpend.vin[0].prevout.n = 0; txSpend.vin[0].scriptSig = scriptSig; txSpend.vin[0].nSequence = CTxIn::SEQUENCE_FINAL; txSpend.vout[0].scriptPubKey = CScript(); - txSpend.vout[0].nValue = 0; + txSpend.vout[0].nValue = txCredit.vout[0].nValue; return txSpend; } -void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, int flags, const std::string& message, int scriptError) +void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, const CScriptWitness& scriptWitness, int flags, const std::string& message, int scriptError, CAmount nValue = 0) { bool expect = (scriptError == SCRIPT_ERR_OK); + if (flags & SCRIPT_VERIFY_CLEANSTACK) { + flags |= SCRIPT_VERIFY_P2SH; + flags |= SCRIPT_VERIFY_WITNESS; + } ScriptError err; - CMutableTransaction tx = BuildSpendingTransaction(scriptSig, BuildCreditingTransaction(scriptPubKey)); + CMutableTransaction txCredit = BuildCreditingTransaction(scriptPubKey, nValue); + CMutableTransaction tx = BuildSpendingTransaction(scriptSig, scriptWitness, txCredit); CMutableTransaction tx2 = tx; - BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, flags, MutableTransactionSignatureChecker(&tx, 0), &err) == expect, message); + BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, &scriptWitness, flags, MutableTransactionSignatureChecker(&tx, 0, txCredit.vout[0].nValue), &err) == expect, message); BOOST_CHECK_MESSAGE(err == scriptError, std::string(FormatScriptError(err)) + " where " + std::string(FormatScriptError((ScriptError_t)scriptError)) + " expected: " + message); #if defined(HAVE_CONSENSUS_LIB) CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); stream << tx2; - BOOST_CHECK_MESSAGE(bitcoinconsensus_verify_script(begin_ptr(scriptPubKey), scriptPubKey.size(), (const unsigned char*)&stream[0], stream.size(), 0, flags, NULL) == expect,message); + if (flags & bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS) { + BOOST_CHECK_MESSAGE(bitcoinconsensus_verify_script_with_amount(begin_ptr(scriptPubKey), scriptPubKey.size(), txCredit.vout[0].nValue, (const unsigned char*)&stream[0], stream.size(), 0, flags, NULL) == expect, message); + } else { + BOOST_CHECK_MESSAGE(bitcoinconsensus_verify_script_with_amount(begin_ptr(scriptPubKey), scriptPubKey.size(), 0, (const unsigned char*)&stream[0], stream.size(), 0, flags, NULL) == expect, message); + BOOST_CHECK_MESSAGE(bitcoinconsensus_verify_script(begin_ptr(scriptPubKey), scriptPubKey.size(), (const unsigned char*)&stream[0], stream.size(), 0, flags, NULL) == expect,message); + } #endif } @@ -234,11 +254,22 @@ struct KeyData } }; +enum WitnessMode { + WITNESS_NONE, + WITNESS_PKH, + WITNESS_SH +}; class TestBuilder { private: - CScript scriptPubKey; + //! Actually executed script + CScript script; + //! The P2SH redeemscript + CScript redeemscript; + //! The Witness embedded script + CScript witscript; + CScriptWitness scriptWitness; CTransaction creditTx; CMutableTransaction spendTx; bool havePush; @@ -246,6 +277,7 @@ private: std::string comment; int flags; int scriptError; + CAmount nValue; void DoPush() { @@ -263,14 +295,26 @@ private: } public: - TestBuilder(const CScript& redeemScript, const std::string& comment_, int flags_, bool P2SH = false) : scriptPubKey(redeemScript), havePush(false), comment(comment_), flags(flags_), scriptError(SCRIPT_ERR_OK) + TestBuilder(const CScript& script_, const std::string& comment_, int flags_, bool P2SH = false, WitnessMode wm = WITNESS_NONE, int witnessversion = 0, CAmount nValue_ = 0) : script(script_), havePush(false), comment(comment_), flags(flags_), scriptError(SCRIPT_ERR_OK), nValue(nValue_) { + CScript scriptPubKey = script; + if (wm == WITNESS_PKH) { + uint160 hash; + CHash160().Write(&script[1], script.size() - 1).Finalize(hash.begin()); + script = CScript() << OP_DUP << OP_HASH160 << ToByteVector(hash) << OP_EQUALVERIFY << OP_CHECKSIG; + scriptPubKey = CScript() << witnessversion << ToByteVector(hash); + } else if (wm == WITNESS_SH) { + witscript = scriptPubKey; + uint256 hash; + CSHA256().Write(&witscript[0], witscript.size()).Finalize(hash.begin()); + scriptPubKey = CScript() << witnessversion << ToByteVector(hash); + } if (P2SH) { - creditTx = BuildCreditingTransaction(CScript() << OP_HASH160 << ToByteVector(CScriptID(redeemScript)) << OP_EQUAL); - } else { - creditTx = BuildCreditingTransaction(redeemScript); + redeemscript = scriptPubKey; + scriptPubKey = CScript() << OP_HASH160 << ToByteVector(CScriptID(redeemscript)) << OP_EQUAL; } - spendTx = BuildSpendingTransaction(CScript(), creditTx); + creditTx = BuildCreditingTransaction(scriptPubKey, nValue); + spendTx = BuildSpendingTransaction(CScript(), CScriptWitness(), creditTx); } TestBuilder& ScriptError(ScriptError_t err) @@ -299,9 +343,14 @@ public: return *this; } - TestBuilder& PushSig(const CKey& key, int nHashType = SIGHASH_ALL, unsigned int lenR = 32, unsigned int lenS = 32) + TestBuilder& Push(const CScript& script) { + DoPush(std::vector<unsigned char>(script.begin(), script.end())); + return *this; + } + + TestBuilder& PushSig(const CKey& key, int nHashType = SIGHASH_ALL, unsigned int lenR = 32, unsigned int lenS = 32, SigVersion sigversion = SIGVERSION_BASE, CAmount amount = 0) { - uint256 hash = SignatureHash(scriptPubKey, spendTx, 0, nHashType); + uint256 hash = SignatureHash(script, spendTx, 0, nHashType, amount, sigversion); std::vector<unsigned char> vchSig, r, s; uint32_t iter = 0; do { @@ -317,6 +366,13 @@ public: return *this; } + TestBuilder& PushWitSig(const CKey& key, CAmount amount = -1, int nHashType = SIGHASH_ALL, unsigned int lenR = 32, unsigned int lenS = 32, SigVersion sigversion = SIGVERSION_WITNESS_V0) + { + if (amount == -1) + amount = nValue; + return PushSig(key, nHashType, lenR, lenS, sigversion, amount).AsWit(); + } + TestBuilder& Push(const CPubKey& pubkey) { DoPush(std::vector<unsigned char>(pubkey.begin(), pubkey.end())); @@ -325,10 +381,16 @@ public: TestBuilder& PushRedeem() { - DoPush(std::vector<unsigned char>(scriptPubKey.begin(), scriptPubKey.end())); + DoPush(std::vector<unsigned char>(redeemscript.begin(), redeemscript.end())); return *this; } + TestBuilder& PushWitRedeem() + { + DoPush(std::vector<unsigned char>(witscript.begin(), witscript.end())); + return AsWit(); + } + TestBuilder& EditPush(unsigned int pos, const std::string& hexin, const std::string& hexout) { assert(havePush); @@ -353,15 +415,31 @@ public: { TestBuilder copy = *this; // Make a copy so we can rollback the push. DoPush(); - DoTest(creditTx.vout[0].scriptPubKey, spendTx.vin[0].scriptSig, flags, comment, scriptError); + DoTest(creditTx.vout[0].scriptPubKey, spendTx.vin[0].scriptSig, scriptWitness, flags, comment, scriptError, nValue); *this = copy; return *this; } + TestBuilder& AsWit() + { + assert(havePush); + scriptWitness.stack.push_back(push); + havePush = false; + return *this; + } + UniValue GetJSON() { DoPush(); UniValue array(UniValue::VARR); + if (!scriptWitness.stack.empty()) { + UniValue wit(UniValue::VARR); + for (unsigned i = 0; i < scriptWitness.stack.size(); i++) { + wit.push_back(HexStr(scriptWitness.stack[i])); + } + wit.push_back(ValueFromAmount(nValue)); + array.push_back(wit); + } array.push_back(FormatScript(spendTx.vin[0].scriptSig)); array.push_back(FormatScript(creditTx.vout[0].scriptPubKey)); array.push_back(FormatScriptFlags(flags)); @@ -660,6 +738,90 @@ BOOST_AUTO_TEST_CASE(script_build) "P2SH with CLEANSTACK", SCRIPT_VERIFY_CLEANSTACK | SCRIPT_VERIFY_P2SH, true ).PushSig(keys.key0).PushRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "Basic P2WSH", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH, + 0, 1).PushWitSig(keys.key0).PushWitRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "Basic P2WPKH", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_PKH, + 0, 1).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "Basic P2SH(P2WSH)", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH, + 0, 1).PushWitSig(keys.key0).PushWitRedeem().PushRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "Basic P2SH(P2WPKH)", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_PKH, + 0, 1).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().PushRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1) << OP_CHECKSIG, + "Basic P2WSH with the wrong key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH + ).PushWitSig(keys.key0).PushWitRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1), + "Basic P2WPKH with the wrong key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey1).AsWit().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1) << OP_CHECKSIG, + "Basic P2SH(P2WSH) with the wrong key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH + ).PushWitSig(keys.key0).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1), + "Basic P2SH(P2WPKH) with the wrong key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey1).AsWit().PushRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1) << OP_CHECKSIG, + "Basic P2WSH with the wrong key but no WITNESS", SCRIPT_VERIFY_P2SH, false, WITNESS_SH + ).PushWitSig(keys.key0).PushWitRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1), + "Basic P2WPKH with the wrong key but no WITNESS", SCRIPT_VERIFY_P2SH, false, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey1).AsWit()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1) << OP_CHECKSIG, + "Basic P2SH(P2WSH) with the wrong key but no WITNESS", SCRIPT_VERIFY_P2SH, true, WITNESS_SH + ).PushWitSig(keys.key0).PushWitRedeem().PushRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1), + "Basic P2SH(P2WPKH) with the wrong key but no WITNESS", SCRIPT_VERIFY_P2SH, true, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey1).AsWit().PushRedeem()); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "Basic P2WSH with wrong value", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH, + 0, 0).PushWitSig(keys.key0, 1).PushWitRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "Basic P2WPKH with wrong value", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_PKH, + 0, 0).PushWitSig(keys.key0, 1).Push(keys.pubkey0).AsWit().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "Basic P2SH(P2WSH) with wrong value", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH, + 0, 0).PushWitSig(keys.key0, 1).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "Basic P2SH(P2WPKH) with wrong value", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_PKH, + 0, 0).PushWitSig(keys.key0, 1).Push(keys.pubkey0).AsWit().PushRedeem().ScriptError(SCRIPT_ERR_EVAL_FALSE)); + + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "P2WPKH with future witness version", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | + SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM, false, WITNESS_PKH, 1 + ).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().ScriptError(SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM)); + { + CScript witscript = CScript() << ToByteVector(keys.pubkey0); + uint256 hash; + CSHA256().Write(&witscript[0], witscript.size()).Finalize(hash.begin()); + vector<unsigned char> hashBytes = ToByteVector(hash); + hashBytes.pop_back(); + tests.push_back(TestBuilder(CScript() << OP_0 << hashBytes, + "P2WPKH with wrong witness program length", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false + ).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().ScriptError(SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH)); + } + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "P2WSH with empty witness", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH + ).ScriptError(SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY)); + { + CScript witscript = CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG; + tests.push_back(TestBuilder(witscript, + "P2WSH with witness program mismatch", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH + ).PushWitSig(keys.key0).Push(witscript).DamagePush(0).AsWit().ScriptError(SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH)); + } + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "P2WPKH with witness program mismatch", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().Push("0").AsWit().ScriptError(SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0), + "P2WPKH with non-empty scriptSig", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().Num(11).ScriptError(SCRIPT_ERR_WITNESS_MALLEATED)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1), + "P2SH(P2WPKH) with superfluous push in scriptSig", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_PKH + ).PushWitSig(keys.key0).Push(keys.pubkey1).AsWit().Num(11).PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_MALLEATED_P2SH)); + tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG, + "P2PK with witness", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH + ).PushSig(keys.key0).Push("0").AsWit().ScriptError(SCRIPT_ERR_WITNESS_UNEXPECTED)); std::set<std::string> tests_set; @@ -696,29 +858,42 @@ BOOST_AUTO_TEST_CASE(script_json_test) { // Read tests from test/data/script_tests.json // Format is an array of arrays - // Inner arrays are [ "scriptSig", "scriptPubKey", "flags", "expected_scripterror" ] + // Inner arrays are [ ["wit"..., nValue]?, "scriptSig", "scriptPubKey", "flags", "expected_scripterror" ] // ... where scriptSig and scriptPubKey are stringified // scripts. + // If a witness is given, then the last value in the array should be the + // amount (nValue) to use in the crediting tx UniValue tests = read_json(std::string(json_tests::script_tests, json_tests::script_tests + sizeof(json_tests::script_tests))); for (unsigned int idx = 0; idx < tests.size(); idx++) { UniValue test = tests[idx]; string strTest = test.write(); - if (test.size() < 4) // Allow size > 3; extra stuff ignored (useful for comments) + CScriptWitness witness; + CAmount nValue = 0; + unsigned int pos = 0; + if (test.size() > 0 && test[pos].isArray()) { + unsigned int i=0; + for (i = 0; i < test[pos].size()-1; i++) { + witness.stack.push_back(ParseHex(test[pos][i].get_str())); + } + nValue = AmountFromValue(test[pos][i]); + pos++; + } + if (test.size() < 4 + pos) // Allow size > 3; extra stuff ignored (useful for comments) { if (test.size() != 1) { BOOST_ERROR("Bad test: " << strTest); } continue; } - string scriptSigString = test[0].get_str(); + string scriptSigString = test[pos++].get_str(); CScript scriptSig = ParseScript(scriptSigString); - string scriptPubKeyString = test[1].get_str(); + string scriptPubKeyString = test[pos++].get_str(); CScript scriptPubKey = ParseScript(scriptPubKeyString); - unsigned int scriptflags = ParseScriptFlags(test[2].get_str()); - int scriptError = ParseScriptError(test[3].get_str()); + unsigned int scriptflags = ParseScriptFlags(test[pos++].get_str()); + int scriptError = ParseScriptError(test[pos++].get_str()); - DoTest(scriptPubKey, scriptSig, scriptflags, strTest, scriptError); + DoTest(scriptPubKey, scriptSig, witness, scriptflags, strTest, scriptError, nValue); } } @@ -733,21 +908,21 @@ BOOST_AUTO_TEST_CASE(script_PushData) ScriptError err; vector<vector<unsigned char> > directStack; - BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); + BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); vector<vector<unsigned char> > pushdata1Stack; - BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); + BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err)); BOOST_CHECK(pushdata1Stack == directStack); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); vector<vector<unsigned char> > pushdata2Stack; - BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); + BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err)); BOOST_CHECK(pushdata2Stack == directStack); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); vector<vector<unsigned char> > pushdata4Stack; - BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); + BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err)); BOOST_CHECK(pushdata4Stack == directStack); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } @@ -755,7 +930,7 @@ BOOST_AUTO_TEST_CASE(script_PushData) CScript sign_multisig(CScript scriptPubKey, std::vector<CKey> keys, CTransaction transaction) { - uint256 hash = SignatureHash(scriptPubKey, transaction, 0, SIGHASH_ALL); + uint256 hash = SignatureHash(scriptPubKey, transaction, 0, SIGHASH_ALL, 0, SIGVERSION_BASE); CScript result; // @@ -796,21 +971,21 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12) scriptPubKey12 << OP_1 << ToByteVector(key1.GetPubKey()) << ToByteVector(key2.GetPubKey()) << OP_2 << OP_CHECKMULTISIG; CMutableTransaction txFrom12 = BuildCreditingTransaction(scriptPubKey12); - CMutableTransaction txTo12 = BuildSpendingTransaction(CScript(), txFrom12); + CMutableTransaction txTo12 = BuildSpendingTransaction(CScript(), CScriptWitness(), txFrom12); CScript goodsig1 = sign_multisig(scriptPubKey12, key1, txTo12); - BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err)); + BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); txTo12.vout[0].nValue = 2; - BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err)); + BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); CScript goodsig2 = sign_multisig(scriptPubKey12, key2, txTo12); - BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err)); + BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); CScript badsig1 = sign_multisig(scriptPubKey12, key3, txTo12); - BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); } @@ -827,65 +1002,66 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23) scriptPubKey23 << OP_2 << ToByteVector(key1.GetPubKey()) << ToByteVector(key2.GetPubKey()) << ToByteVector(key3.GetPubKey()) << OP_3 << OP_CHECKMULTISIG; CMutableTransaction txFrom23 = BuildCreditingTransaction(scriptPubKey23); - CMutableTransaction txTo23 = BuildSpendingTransaction(CScript(), txFrom23); + CMutableTransaction txTo23 = BuildSpendingTransaction(CScript(), CScriptWitness(), txFrom23); std::vector<CKey> keys; keys.push_back(key1); keys.push_back(key2); CScript goodsig1 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); keys.clear(); keys.push_back(key1); keys.push_back(key3); CScript goodsig2 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); keys.clear(); keys.push_back(key2); keys.push_back(key3); CScript goodsig3 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); keys.clear(); keys.push_back(key2); keys.push_back(key2); // Can't re-use sig CScript badsig1 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); keys.clear(); keys.push_back(key2); keys.push_back(key1); // sigs must be in correct order CScript badsig2 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); keys.clear(); keys.push_back(key3); keys.push_back(key2); // sigs must be in correct order CScript badsig3 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); keys.clear(); keys.push_back(key4); keys.push_back(key2); // sigs must match pubkeys CScript badsig4 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); keys.clear(); keys.push_back(key1); keys.push_back(key4); // sigs must match pubkeys CScript badsig5 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err)); keys.clear(); // Must have signatures CScript badsig6 = sign_multisig(scriptPubKey23, keys, txTo23); - BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err)); + BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err)); } BOOST_AUTO_TEST_CASE(script_combineSigs) { // Test the CombineSignatures function + CAmount amount = 0; CBasicKeyStore keystore; vector<CKey> keys; vector<CPubKey> pubkeys; @@ -899,66 +1075,66 @@ BOOST_AUTO_TEST_CASE(script_combineSigs) } CMutableTransaction txFrom = BuildCreditingTransaction(GetScriptForDestination(keys[0].GetPubKey().GetID())); - CMutableTransaction txTo = BuildSpendingTransaction(CScript(), txFrom); + CMutableTransaction txTo = BuildSpendingTransaction(CScript(), CScriptWitness(), txFrom); CScript& scriptPubKey = txFrom.vout[0].scriptPubKey; CScript& scriptSig = txTo.vin[0].scriptSig; - CScript empty; - CScript combined = CombineSignatures(scriptPubKey, txTo, 0, empty, empty); - BOOST_CHECK(combined.empty()); + SignatureData empty; + SignatureData combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), empty, empty); + BOOST_CHECK(combined.scriptSig.empty()); // Single signature case: - SignSignature(keystore, txFrom, txTo, 0); // changes scriptSig - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); - BOOST_CHECK(combined == scriptSig); - combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); - BOOST_CHECK(combined == scriptSig); + SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL); // changes scriptSig + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSig), empty); + BOOST_CHECK(combined.scriptSig == scriptSig); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), empty, SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSig); CScript scriptSigCopy = scriptSig; // Signing again will give a different, valid signature: - SignSignature(keystore, txFrom, txTo, 0); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); - BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig); + SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSigCopy), SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSigCopy || combined.scriptSig == scriptSig); // P2SH, single-signature case: CScript pkSingle; pkSingle << ToByteVector(keys[0].GetPubKey()) << OP_CHECKSIG; keystore.AddCScript(pkSingle); scriptPubKey = GetScriptForDestination(CScriptID(pkSingle)); - SignSignature(keystore, txFrom, txTo, 0); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); - BOOST_CHECK(combined == scriptSig); - combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); - BOOST_CHECK(combined == scriptSig); + SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSig), empty); + BOOST_CHECK(combined.scriptSig == scriptSig); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), empty, SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSig); scriptSigCopy = scriptSig; - SignSignature(keystore, txFrom, txTo, 0); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); - BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig); + SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSigCopy), SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSigCopy || combined.scriptSig == scriptSig); // dummy scriptSigCopy with placeholder, should always choose non-placeholder: - scriptSigCopy = CScript() << OP_0 << vector<unsigned char>(pkSingle.begin(), pkSingle.end()); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); - BOOST_CHECK(combined == scriptSig); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, scriptSigCopy); - BOOST_CHECK(combined == scriptSig); + scriptSigCopy = CScript() << OP_0 << std::vector<unsigned char>(pkSingle.begin(), pkSingle.end()); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSigCopy), SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSig); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSig), SignatureData(scriptSigCopy)); + BOOST_CHECK(combined.scriptSig == scriptSig); // Hardest case: Multisig 2-of-3 scriptPubKey = GetScriptForMultisig(2, pubkeys); keystore.AddCScript(scriptPubKey); - SignSignature(keystore, txFrom, txTo, 0); - combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); - BOOST_CHECK(combined == scriptSig); - combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); - BOOST_CHECK(combined == scriptSig); + SignSignature(keystore, txFrom, txTo, 0, SIGHASH_ALL); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(scriptSig), empty); + BOOST_CHECK(combined.scriptSig == scriptSig); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), empty, SignatureData(scriptSig)); + BOOST_CHECK(combined.scriptSig == scriptSig); // A couple of partially-signed versions: vector<unsigned char> sig1; - uint256 hash1 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_ALL); + uint256 hash1 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_ALL, 0, SIGVERSION_BASE); BOOST_CHECK(keys[0].Sign(hash1, sig1)); sig1.push_back(SIGHASH_ALL); vector<unsigned char> sig2; - uint256 hash2 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_NONE); + uint256 hash2 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_NONE, 0, SIGVERSION_BASE); BOOST_CHECK(keys[1].Sign(hash2, sig2)); sig2.push_back(SIGHASH_NONE); vector<unsigned char> sig3; - uint256 hash3 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_SINGLE); + uint256 hash3 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_SINGLE, 0, SIGVERSION_BASE); BOOST_CHECK(keys[2].Sign(hash3, sig3)); sig3.push_back(SIGHASH_SINGLE); @@ -974,22 +1150,22 @@ BOOST_AUTO_TEST_CASE(script_combineSigs) CScript complete13 = CScript() << OP_0 << sig1 << sig3; CScript complete23 = CScript() << OP_0 << sig2 << sig3; - combined = CombineSignatures(scriptPubKey, txTo, 0, partial1a, partial1b); - BOOST_CHECK(combined == partial1a); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial1a, partial2a); - BOOST_CHECK(combined == complete12); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial2a, partial1a); - BOOST_CHECK(combined == complete12); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial1b, partial2b); - BOOST_CHECK(combined == complete12); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial1b); - BOOST_CHECK(combined == complete13); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial2a, partial3a); - BOOST_CHECK(combined == complete23); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial2b); - BOOST_CHECK(combined == complete23); - combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial3a); - BOOST_CHECK(combined == partial3c); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial1a), SignatureData(partial1b)); + BOOST_CHECK(combined.scriptSig == partial1a); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial1a), SignatureData(partial2a)); + BOOST_CHECK(combined.scriptSig == complete12); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial2a), SignatureData(partial1a)); + BOOST_CHECK(combined.scriptSig == complete12); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial1b), SignatureData(partial2b)); + BOOST_CHECK(combined.scriptSig == complete12); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial3b), SignatureData(partial1b)); + BOOST_CHECK(combined.scriptSig == complete13); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial2a), SignatureData(partial3a)); + BOOST_CHECK(combined.scriptSig == complete23); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial3b), SignatureData(partial2b)); + BOOST_CHECK(combined.scriptSig == complete23); + combined = CombineSignatures(scriptPubKey, MutableTransactionSignatureChecker(&txTo, 0, amount), SignatureData(partial3b), SignatureData(partial3a)); + BOOST_CHECK(combined.scriptSig == partial3c); } BOOST_AUTO_TEST_CASE(script_standard_push) @@ -999,7 +1175,7 @@ BOOST_AUTO_TEST_CASE(script_standard_push) CScript script; script << i; BOOST_CHECK_MESSAGE(script.IsPushOnly(), "Number " << i << " is not pure push."); - BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Number " << i << " push is not minimal data."); + BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, NULL, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Number " << i << " push is not minimal data."); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } @@ -1008,7 +1184,7 @@ BOOST_AUTO_TEST_CASE(script_standard_push) CScript script; script << data; BOOST_CHECK_MESSAGE(script.IsPushOnly(), "Length " << i << " is not pure push."); - BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Length " << i << " push is not minimal data."); + BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, NULL, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Length " << i << " push is not minimal data."); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } } diff --git a/src/test/sighash_tests.cpp b/src/test/sighash_tests.cpp index e43b2ff6c4..4a48347b70 100644 --- a/src/test/sighash_tests.cpp +++ b/src/test/sighash_tests.cpp @@ -82,7 +82,7 @@ uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, un } // Serialize and hash - CHashWriter ss(SER_GETHASH, 0); + CHashWriter ss(SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS); ss << txTmp << nHashType; return ss.GetHash(); } @@ -143,7 +143,7 @@ BOOST_AUTO_TEST_CASE(sighash_test) uint256 sh, sho; sho = SignatureHashOld(scriptCode, txTo, nIn, nHashType); - sh = SignatureHash(scriptCode, txTo, nIn, nHashType); + sh = SignatureHash(scriptCode, txTo, nIn, nHashType, 0, SIGVERSION_BASE); #if defined(PRINT_SIGHASH_JSON) CDataStream ss(SER_NETWORK, PROTOCOL_VERSION); ss << txTo; @@ -209,7 +209,7 @@ BOOST_AUTO_TEST_CASE(sighash_from_data) continue; } - sh = SignatureHash(scriptCode, tx, nIn, nHashType); + sh = SignatureHash(scriptCode, tx, nIn, nHashType, 0, SIGVERSION_BASE); BOOST_CHECK_MESSAGE(sh.GetHex() == sigHashHex, strTest); } } diff --git a/src/test/sigopcount_tests.cpp b/src/test/sigopcount_tests.cpp index a207fd9216..8dea388332 100644 --- a/src/test/sigopcount_tests.cpp +++ b/src/test/sigopcount_tests.cpp @@ -2,6 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#include "main.h" #include "pubkey.h" #include "key.h" #include "script/script.h" @@ -64,4 +65,180 @@ BOOST_AUTO_TEST_CASE(GetSigOpCount) BOOST_CHECK_EQUAL(p2sh.GetSigOpCount(scriptSig2), 3U); } +/** + * Verifies script execution of the zeroth scriptPubKey of tx output and + * zeroth scriptSig and witness of tx input. + */ +ScriptError VerifyWithFlag(const CTransaction& output, const CMutableTransaction& input, int flags) +{ + ScriptError error; + CTransaction inputi(input); + bool ret = VerifyScript(inputi.vin[0].scriptSig, output.vout[0].scriptPubKey, inputi.wit.vtxinwit.size() > 0 ? &inputi.wit.vtxinwit[0].scriptWitness : NULL, flags, TransactionSignatureChecker(&inputi, 0, output.vout[0].nValue), &error); + BOOST_CHECK((ret == true) == (error == SCRIPT_ERR_OK)); + + return error; +} + +/** + * Builds a creationTx from scriptPubKey and a spendingTx from scriptSig + * and witness such that spendingTx spends output zero of creationTx. + * Also inserts creationTx's output into the coins view. + */ +void BuildTxs(CMutableTransaction& spendingTx, CCoinsViewCache& coins, CMutableTransaction& creationTx, const CScript& scriptPubKey, const CScript& scriptSig, const CTxinWitness& witness) +{ + creationTx.nVersion = 1; + creationTx.vin.resize(1); + creationTx.vin[0].prevout.SetNull(); + creationTx.vin[0].scriptSig = CScript(); + creationTx.wit.vtxinwit.resize(1); + creationTx.vout.resize(1); + creationTx.vout[0].nValue = 1; + creationTx.vout[0].scriptPubKey = scriptPubKey; + + spendingTx.nVersion = 1; + spendingTx.vin.resize(1); + spendingTx.vin[0].prevout.hash = creationTx.GetHash(); + spendingTx.vin[0].prevout.n = 0; + spendingTx.vin[0].scriptSig = scriptSig; + spendingTx.wit.vtxinwit.resize(1); + spendingTx.wit.vtxinwit[0] = witness; + spendingTx.vout.resize(1); + spendingTx.vout[0].nValue = 1; + spendingTx.vout[0].scriptPubKey = CScript(); + + coins.ModifyCoins(creationTx.GetHash())->FromTx(creationTx, 0); +} + +BOOST_AUTO_TEST_CASE(GetTxSigOpCost) +{ + // Transaction creates outputs + CMutableTransaction creationTx; + // Transaction that spends outputs and whose + // sig op cost is going to be tested + CMutableTransaction spendingTx; + + // Create utxo set + CCoinsView coinsDummy; + CCoinsViewCache coins(&coinsDummy); + // Create key + CKey key; + key.MakeNewKey(true); + CPubKey pubkey = key.GetPubKey(); + // Default flags + int flags = SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH; + + // Multisig script (legacy counting) + { + CScript scriptPubKey = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY; + // Do not use a valid signature to avoid using wallet operations. + CScript scriptSig = CScript() << OP_0 << OP_0; + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, CTxinWitness()); + // Legacy counting only includes signature operations in scriptSigs and scriptPubKeys + // of a transaction and does not take the actual executed sig operations into account. + // spendingTx in itself does not contain a signature operation. + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0); + // creationTx contains two signature operations in its scriptPubKey, but legacy counting + // is not accurate. + assert(GetTransactionSigOpCost(CTransaction(creationTx), coins, flags) == MAX_PUBKEYS_PER_MULTISIG * WITNESS_SCALE_FACTOR); + // Sanity check: script verification fails because of an invalid signature. + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY); + } + + // Multisig nested in P2SH + { + CScript redeemScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY; + CScript scriptPubKey = GetScriptForDestination(CScriptID(redeemScript)); + CScript scriptSig = CScript() << OP_0 << OP_0 << ToByteVector(redeemScript); + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, CTxinWitness()); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2 * WITNESS_SCALE_FACTOR); + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY); + } + + // P2WPKH witness program + { + CScript p2pk = CScript() << ToByteVector(pubkey) << OP_CHECKSIG; + CScript scriptPubKey = GetScriptForWitness(p2pk); + CScript scriptSig = CScript(); + CTxinWitness witness; + CScriptWitness scriptWitness; + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(0)); + witness.scriptWitness = scriptWitness; + + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 1); + // No signature operations if we don't verify the witness. + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags & ~SCRIPT_VERIFY_WITNESS) == 0); + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_EQUALVERIFY); + + // The sig op cost for witness version != 0 is zero. + assert(scriptPubKey[0] == 0x00); + scriptPubKey[0] = 0x51; + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0); + scriptPubKey[0] = 0x00; + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + + // The witness of a coinbase transaction is not taken into account. + spendingTx.vin[0].prevout.SetNull(); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0); + } + + // P2WPKH nested in P2SH + { + CScript p2pk = CScript() << ToByteVector(pubkey) << OP_CHECKSIG; + CScript scriptSig = GetScriptForWitness(p2pk); + CScript scriptPubKey = GetScriptForDestination(CScriptID(scriptSig)); + scriptSig = CScript() << ToByteVector(scriptSig); + CTxinWitness witness; + CScriptWitness scriptWitness; + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(0)); + witness.scriptWitness = scriptWitness; + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 1); + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_EQUALVERIFY); + } + + // P2WSH witness program + { + CScript witnessScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY; + CScript scriptPubKey = GetScriptForWitness(witnessScript); + CScript scriptSig = CScript(); + CTxinWitness witness; + CScriptWitness scriptWitness; + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(witnessScript.begin(), witnessScript.end())); + witness.scriptWitness = scriptWitness; + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags & ~SCRIPT_VERIFY_WITNESS) == 0); + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY); + } + + // P2WSH nested in P2SH + { + CScript witnessScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY; + CScript redeemScript = GetScriptForWitness(witnessScript); + CScript scriptPubKey = GetScriptForDestination(CScriptID(redeemScript)); + CScript scriptSig = CScript() << ToByteVector(redeemScript); + CTxinWitness witness; + CScriptWitness scriptWitness; + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(0)); + scriptWitness.stack.push_back(vector<unsigned char>(witnessScript.begin(), witnessScript.end())); + witness.scriptWitness = scriptWitness; + + BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, witness); + assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2); + assert(VerifyWithFlag(creationTx, spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY); + } +} + BOOST_AUTO_TEST_SUITE_END() diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp index 1f3b198800..856f9b8423 100644 --- a/src/test/test_bitcoin.cpp +++ b/src/test/test_bitcoin.cpp @@ -136,7 +136,7 @@ CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(CTransaction &txn, CTxMemPool *po CAmount inChainValue = hasNoDependencies ? txn.GetValueOut() : 0; return CTxMemPoolEntry(txn, nFee, nTime, dPriority, nHeight, - hasNoDependencies, inChainValue, spendsCoinbase, sigOpCount, lp); + hasNoDependencies, inChainValue, spendsCoinbase, sigOpCost, lp); } void Shutdown(void* parg) diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h index 78b87e7109..bc0d2fe316 100644 --- a/src/test/test_bitcoin.h +++ b/src/test/test_bitcoin.h @@ -70,12 +70,12 @@ struct TestMemPoolEntryHelper unsigned int nHeight; bool hadNoDependencies; bool spendsCoinbase; - unsigned int sigOpCount; + unsigned int sigOpCost; LockPoints lp; TestMemPoolEntryHelper() : nFee(0), nTime(0), dPriority(0.0), nHeight(1), - hadNoDependencies(false), spendsCoinbase(false), sigOpCount(1) { } + hadNoDependencies(false), spendsCoinbase(false), sigOpCost(4) { } CTxMemPoolEntry FromTx(CMutableTransaction &tx, CTxMemPool *pool = NULL); CTxMemPoolEntry FromTx(CTransaction &tx, CTxMemPool *pool = NULL); @@ -87,6 +87,6 @@ struct TestMemPoolEntryHelper TestMemPoolEntryHelper &Height(unsigned int _height) { nHeight = _height; return *this; } TestMemPoolEntryHelper &HadNoDependencies(bool _hnd) { hadNoDependencies = _hnd; return *this; } TestMemPoolEntryHelper &SpendsCoinbase(bool _flag) { spendsCoinbase = _flag; return *this; } - TestMemPoolEntryHelper &SigOps(unsigned int _sigops) { sigOpCount = _sigops; return *this; } + TestMemPoolEntryHelper &SigOpsCost(unsigned int _sigopsCost) { sigOpCost = _sigopsCost; return *this; } }; #endif diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp index d9195bf345..fd4f174b40 100644 --- a/src/test/transaction_tests.cpp +++ b/src/test/transaction_tests.cpp @@ -14,7 +14,9 @@ #include "main.h" // For CheckTransaction #include "policy/policy.h" #include "script/script.h" +#include "script/sign.h" #include "script/script_error.h" +#include "script/standard.h" #include "utilstrencodings.h" #include <map> @@ -25,11 +27,14 @@ #include <boost/assign/list_of.hpp> #include <boost/test/unit_test.hpp> #include <boost/assign/list_of.hpp> +#include <boost/foreach.hpp> #include <univalue.h> using namespace std; +typedef vector<unsigned char> valtype; + // In script_tests.cpp extern UniValue read_json(const std::string& jsondata); @@ -45,7 +50,9 @@ static std::map<string, unsigned int> mapFlagNames = boost::assign::map_list_of (string("DISCOURAGE_UPGRADABLE_NOPS"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) (string("CLEANSTACK"), (unsigned int)SCRIPT_VERIFY_CLEANSTACK) (string("CHECKLOCKTIMEVERIFY"), (unsigned int)SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY) - (string("CHECKSEQUENCEVERIFY"), (unsigned int)SCRIPT_VERIFY_CHECKSEQUENCEVERIFY); + (string("CHECKSEQUENCEVERIFY"), (unsigned int)SCRIPT_VERIFY_CHECKSEQUENCEVERIFY) + (string("WITNESS"), (unsigned int)SCRIPT_VERIFY_WITNESS) + (string("DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM); unsigned int ParseScriptFlags(string strFlags) { @@ -108,6 +115,7 @@ BOOST_AUTO_TEST_CASE(tx_valid) } map<COutPoint, CScript> mapprevOutScriptPubKeys; + map<COutPoint, int64_t> mapprevOutValues; UniValue inputs = test[0].get_array(); bool fValid = true; for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) { @@ -118,13 +126,17 @@ BOOST_AUTO_TEST_CASE(tx_valid) break; } UniValue vinput = input.get_array(); - if (vinput.size() != 3) + if (vinput.size() < 3 || vinput.size() > 4) { fValid = false; break; } - - mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str()); + COutPoint outpoint(uint256S(vinput[0].get_str()), vinput[1].get_int()); + mapprevOutScriptPubKeys[outpoint] = ParseScript(vinput[2].get_str()); + if (vinput.size() >= 4) + { + mapprevOutValues[outpoint] = vinput[3].get_int64(); + } } if (!fValid) { @@ -149,9 +161,14 @@ BOOST_AUTO_TEST_CASE(tx_valid) break; } + CAmount amount = 0; + if (mapprevOutValues.count(tx.vin[i].prevout)) { + amount = mapprevOutValues[tx.vin[i].prevout]; + } unsigned int verify_flags = ParseScriptFlags(test[2].get_str()); + const CScriptWitness *witness = (i < tx.wit.vtxinwit.size()) ? &tx.wit.vtxinwit[i].scriptWitness : NULL; BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout], - verify_flags, TransactionSignatureChecker(&tx, i), &err), + witness, verify_flags, TransactionSignatureChecker(&tx, i, amount), &err), strTest); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); } @@ -183,6 +200,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid) } map<COutPoint, CScript> mapprevOutScriptPubKeys; + map<COutPoint, int64_t> mapprevOutValues; UniValue inputs = test[0].get_array(); bool fValid = true; for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) { @@ -193,13 +211,17 @@ BOOST_AUTO_TEST_CASE(tx_invalid) break; } UniValue vinput = input.get_array(); - if (vinput.size() != 3) + if (vinput.size() < 3 || vinput.size() > 4) { fValid = false; break; } - - mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str()); + COutPoint outpoint(uint256S(vinput[0].get_str()), vinput[1].get_int()); + mapprevOutScriptPubKeys[outpoint] = ParseScript(vinput[2].get_str()); + if (vinput.size() >= 4) + { + mapprevOutValues[outpoint] = vinput[3].get_int64(); + } } if (!fValid) { @@ -208,7 +230,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid) } string transaction = test[1].get_str(); - CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION); + CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION ); CTransaction tx; stream >> tx; @@ -224,8 +246,13 @@ BOOST_AUTO_TEST_CASE(tx_invalid) } unsigned int verify_flags = ParseScriptFlags(test[2].get_str()); + CAmount amount = 0; + if (mapprevOutValues.count(tx.vin[i].prevout)) { + amount = mapprevOutValues[tx.vin[i].prevout]; + } + const CScriptWitness *witness = (i < tx.wit.vtxinwit.size()) ? &tx.wit.vtxinwit[i].scriptWitness : NULL; fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout], - verify_flags, TransactionSignatureChecker(&tx, i), &err); + witness, verify_flags, TransactionSignatureChecker(&tx, i, amount), &err); } BOOST_CHECK_MESSAGE(!fValid, strTest); BOOST_CHECK_MESSAGE(err != SCRIPT_ERR_OK, ScriptErrorString(err)); @@ -313,6 +340,277 @@ BOOST_AUTO_TEST_CASE(test_Get) BOOST_CHECK_EQUAL(coins.GetValueIn(t1), (50+21+22)*CENT); } +void CreateCreditAndSpend(const CKeyStore& keystore, const CScript& outscript, CTransaction& output, CMutableTransaction& input, bool success = true) +{ + CMutableTransaction outputm; + outputm.nVersion = 1; + outputm.vin.resize(1); + outputm.vin[0].prevout.SetNull(); + outputm.vin[0].scriptSig = CScript(); + outputm.wit.vtxinwit.resize(1); + outputm.vout.resize(1); + outputm.vout[0].nValue = 1; + outputm.vout[0].scriptPubKey = outscript; + CDataStream ssout(SER_NETWORK, PROTOCOL_VERSION); + ssout << outputm; + ssout >> output; + assert(output.vin.size() == 1); + assert(output.vin[0] == outputm.vin[0]); + assert(output.vout.size() == 1); + assert(output.vout[0] == outputm.vout[0]); + assert(output.wit.vtxinwit.size() == 0); + + CMutableTransaction inputm; + inputm.nVersion = 1; + inputm.vin.resize(1); + inputm.vin[0].prevout.hash = output.GetHash(); + inputm.vin[0].prevout.n = 0; + inputm.wit.vtxinwit.resize(1); + inputm.vout.resize(1); + inputm.vout[0].nValue = 1; + inputm.vout[0].scriptPubKey = CScript(); + bool ret = SignSignature(keystore, output, inputm, 0, SIGHASH_ALL); + assert(ret == success); + CDataStream ssin(SER_NETWORK, PROTOCOL_VERSION); + ssin << inputm; + ssin >> input; + assert(input.vin.size() == 1); + assert(input.vin[0] == inputm.vin[0]); + assert(input.vout.size() == 1); + assert(input.vout[0] == inputm.vout[0]); + if (inputm.wit.IsNull()) { + assert(input.wit.IsNull()); + } else { + assert(!input.wit.IsNull()); + assert(input.wit.vtxinwit.size() == 1); + assert(input.wit.vtxinwit[0].scriptWitness.stack == inputm.wit.vtxinwit[0].scriptWitness.stack); + } +} + +void CheckWithFlag(const CTransaction& output, const CMutableTransaction& input, int flags, bool success) +{ + ScriptError error; + CTransaction inputi(input); + bool ret = VerifyScript(inputi.vin[0].scriptSig, output.vout[0].scriptPubKey, inputi.wit.vtxinwit.size() > 0 ? &inputi.wit.vtxinwit[0].scriptWitness : NULL, flags, TransactionSignatureChecker(&inputi, 0, output.vout[0].nValue), &error); + assert(ret == success); +} + +static CScript PushAll(const vector<valtype>& values) +{ + CScript result; + BOOST_FOREACH(const valtype& v, values) { + if (v.size() == 0) { + result << OP_0; + } else if (v.size() == 1 && v[0] >= 1 && v[0] <= 16) { + result << CScript::EncodeOP_N(v[0]); + } else { + result << v; + } + } + return result; +} + +void ReplaceRedeemScript(CScript& script, const CScript& redeemScript) +{ + vector<valtype> stack; + EvalScript(stack, script, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker(), SIGVERSION_BASE); + assert(stack.size() > 0); + stack.back() = std::vector<unsigned char>(redeemScript.begin(), redeemScript.end()); + script = PushAll(stack); +} + +BOOST_AUTO_TEST_CASE(test_witness) +{ + CBasicKeyStore keystore, keystore2; + CKey key1, key2, key3, key1L, key2L; + CPubKey pubkey1, pubkey2, pubkey3, pubkey1L, pubkey2L; + key1.MakeNewKey(true); + key2.MakeNewKey(true); + key3.MakeNewKey(true); + key1L.MakeNewKey(false); + key2L.MakeNewKey(false); + pubkey1 = key1.GetPubKey(); + pubkey2 = key2.GetPubKey(); + pubkey3 = key3.GetPubKey(); + pubkey1L = key1L.GetPubKey(); + pubkey2L = key2L.GetPubKey(); + keystore.AddKeyPubKey(key1, pubkey1); + keystore.AddKeyPubKey(key2, pubkey2); + keystore.AddKeyPubKey(key1L, pubkey1L); + keystore.AddKeyPubKey(key2L, pubkey2L); + CScript scriptPubkey1, scriptPubkey2, scriptPubkey1L, scriptPubkey2L, scriptMulti; + scriptPubkey1 << ToByteVector(pubkey1) << OP_CHECKSIG; + scriptPubkey2 << ToByteVector(pubkey2) << OP_CHECKSIG; + scriptPubkey1L << ToByteVector(pubkey1L) << OP_CHECKSIG; + scriptPubkey2L << ToByteVector(pubkey2L) << OP_CHECKSIG; + std::vector<CPubKey> oneandthree; + oneandthree.push_back(pubkey1); + oneandthree.push_back(pubkey3); + scriptMulti = GetScriptForMultisig(2, oneandthree); + keystore.AddCScript(scriptPubkey1); + keystore.AddCScript(scriptPubkey2); + keystore.AddCScript(scriptPubkey1L); + keystore.AddCScript(scriptPubkey2L); + keystore.AddCScript(scriptMulti); + keystore.AddCScript(GetScriptForWitness(scriptPubkey1)); + keystore.AddCScript(GetScriptForWitness(scriptPubkey2)); + keystore.AddCScript(GetScriptForWitness(scriptPubkey1L)); + keystore.AddCScript(GetScriptForWitness(scriptPubkey2L)); + keystore.AddCScript(GetScriptForWitness(scriptMulti)); + keystore2.AddCScript(scriptMulti); + keystore2.AddCScript(GetScriptForWitness(scriptMulti)); + keystore2.AddKeyPubKey(key3, pubkey3); + + CTransaction output1, output2; + CMutableTransaction input1, input2; + SignatureData sigdata; + + // Normal pay-to-compressed-pubkey. + CreateCreditAndSpend(keystore, scriptPubkey1, output1, input1); + CreateCreditAndSpend(keystore, scriptPubkey2, output2, input2); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // P2SH pay-to-compressed-pubkey. + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(scriptPubkey1)), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(scriptPubkey2)), output2, input2); + ReplaceRedeemScript(input2.vin[0].scriptSig, scriptPubkey1); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // Witness pay-to-compressed-pubkey (v0). + CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey1), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey2), output2, input2); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // P2SH witness pay-to-compressed-pubkey (v0). + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey1))), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey2))), output2, input2); + ReplaceRedeemScript(input2.vin[0].scriptSig, GetScriptForWitness(scriptPubkey1)); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // Normal pay-to-uncompressed-pubkey. + CreateCreditAndSpend(keystore, scriptPubkey1L, output1, input1); + CreateCreditAndSpend(keystore, scriptPubkey2L, output2, input2); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // P2SH pay-to-uncompressed-pubkey. + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(scriptPubkey1L)), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(scriptPubkey2L)), output2, input2); + ReplaceRedeemScript(input2.vin[0].scriptSig, scriptPubkey1L); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // Witness pay-to-uncompressed-pubkey (v1). + CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey1L), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey2L), output2, input2); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // P2SH witness pay-to-uncompressed-pubkey (v1). + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey1L))), output1, input1); + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey2L))), output2, input2); + ReplaceRedeemScript(input2.vin[0].scriptSig, GetScriptForWitness(scriptPubkey1L)); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + CheckWithFlag(output1, input2, 0, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false); + CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false); + + // Normal 2-of-2 multisig + CreateCreditAndSpend(keystore, scriptMulti, output1, input1, false); + CheckWithFlag(output1, input1, 0, false); + CreateCreditAndSpend(keystore2, scriptMulti, output2, input2, false); + CheckWithFlag(output2, input2, 0, false); + BOOST_CHECK(output1 == output2); + UpdateTransaction(input1, 0, CombineSignatures(output1.vout[0].scriptPubKey, MutableTransactionSignatureChecker(&input1, 0, output1.vout[0].nValue), DataFromTransaction(input1, 0), DataFromTransaction(input2, 0))); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + + // P2SH 2-of-2 multisig + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(scriptMulti)), output1, input1, false); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, false); + CreateCreditAndSpend(keystore2, GetScriptForDestination(CScriptID(scriptMulti)), output2, input2, false); + CheckWithFlag(output2, input2, 0, true); + CheckWithFlag(output2, input2, SCRIPT_VERIFY_P2SH, false); + BOOST_CHECK(output1 == output2); + UpdateTransaction(input1, 0, CombineSignatures(output1.vout[0].scriptPubKey, MutableTransactionSignatureChecker(&input1, 0, output1.vout[0].nValue), DataFromTransaction(input1, 0), DataFromTransaction(input2, 0))); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + + // Witness 2-of-2 multisig + CreateCreditAndSpend(keystore, GetScriptForWitness(scriptMulti), output1, input1, false); + CheckWithFlag(output1, input1, 0, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false); + CreateCreditAndSpend(keystore2, GetScriptForWitness(scriptMulti), output2, input2, false); + CheckWithFlag(output2, input2, 0, true); + CheckWithFlag(output2, input2, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false); + BOOST_CHECK(output1 == output2); + UpdateTransaction(input1, 0, CombineSignatures(output1.vout[0].scriptPubKey, MutableTransactionSignatureChecker(&input1, 0, output1.vout[0].nValue), DataFromTransaction(input1, 0), DataFromTransaction(input2, 0))); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); + + // P2SH witness 2-of-2 multisig + CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptMulti))), output1, input1, false); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false); + CreateCreditAndSpend(keystore2, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptMulti))), output2, input2, false); + CheckWithFlag(output2, input2, SCRIPT_VERIFY_P2SH, true); + CheckWithFlag(output2, input2, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false); + BOOST_CHECK(output1 == output2); + UpdateTransaction(input1, 0, CombineSignatures(output1.vout[0].scriptPubKey, MutableTransactionSignatureChecker(&input1, 0, output1.vout[0].nValue), DataFromTransaction(input1, 0), DataFromTransaction(input2, 0))); + CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true); + CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true); +} + BOOST_AUTO_TEST_CASE(test_IsStandard) { LOCK(cs_main); diff --git a/src/test/txvalidationcache_tests.cpp b/src/test/txvalidationcache_tests.cpp index c29e30792a..76e4e7a4be 100644 --- a/src/test/txvalidationcache_tests.cpp +++ b/src/test/txvalidationcache_tests.cpp @@ -48,7 +48,7 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup) // Sign: std::vector<unsigned char> vchSig; - uint256 hash = SignatureHash(scriptPubKey, spends[i], 0, SIGHASH_ALL); + uint256 hash = SignatureHash(scriptPubKey, spends[i], 0, SIGHASH_ALL, 0, SIGVERSION_BASE); BOOST_CHECK(coinbaseKey.Sign(hash, vchSig)); vchSig.push_back((unsigned char)SIGHASH_ALL); spends[i].vin[0].scriptSig << vchSig; diff --git a/src/txmempool.cpp b/src/txmempool.cpp index ead28546de..a48a6d9465 100644 --- a/src/txmempool.cpp +++ b/src/txmempool.cpp @@ -9,6 +9,7 @@ #include "consensus/consensus.h" #include "consensus/validation.h" #include "main.h" +#include "policy/policy.h" #include "policy/fees.h" #include "streams.h" #include "timedata.h" @@ -22,17 +23,17 @@ using namespace std; CTxMemPoolEntry::CTxMemPoolEntry(const CTransaction& _tx, const CAmount& _nFee, int64_t _nTime, double _entryPriority, unsigned int _entryHeight, bool poolHasNoInputsOf, CAmount _inChainInputValue, - bool _spendsCoinbase, unsigned int _sigOps, LockPoints lp): + bool _spendsCoinbase, int64_t _sigOpsCost, LockPoints lp): tx(std::make_shared<CTransaction>(_tx)), nFee(_nFee), nTime(_nTime), entryPriority(_entryPriority), entryHeight(_entryHeight), hadNoDependencies(poolHasNoInputsOf), inChainInputValue(_inChainInputValue), - spendsCoinbase(_spendsCoinbase), sigOpCount(_sigOps), lockPoints(lp) + spendsCoinbase(_spendsCoinbase), sigOpCost(_sigOpsCost), lockPoints(lp) { - nTxSize = ::GetSerializeSize(_tx, SER_NETWORK, PROTOCOL_VERSION); - nModSize = _tx.CalculateModifiedSize(nTxSize); + nTxCost = GetTransactionCost(_tx); + nModSize = _tx.CalculateModifiedSize(GetTxSize()); nUsageSize = RecursiveDynamicUsage(*tx) + memusage::DynamicUsage(tx); nCountWithDescendants = 1; - nSizeWithDescendants = nTxSize; + nSizeWithDescendants = GetTxSize(); nModFeesWithDescendants = nFee; CAmount nValueIn = _tx.GetValueOut()+nFee; assert(inChainInputValue <= nValueIn); @@ -40,9 +41,9 @@ CTxMemPoolEntry::CTxMemPoolEntry(const CTransaction& _tx, const CAmount& _nFee, feeDelta = 0; nCountWithAncestors = 1; - nSizeWithAncestors = nTxSize; + nSizeWithAncestors = GetTxSize(); nModFeesWithAncestors = nFee; - nSigOpCountWithAncestors = sigOpCount; + nSigOpCostWithAncestors = sigOpCost; } CTxMemPoolEntry::CTxMemPoolEntry(const CTxMemPoolEntry& other) @@ -72,6 +73,11 @@ void CTxMemPoolEntry::UpdateLockPoints(const LockPoints& lp) lockPoints = lp; } +size_t CTxMemPoolEntry::GetTxSize() const +{ + return GetVirtualTransactionSize(nTxCost); +} + // Update the given tx for any in-mempool descendants. // Assumes that setMemPoolChildren is correct for the given tx and all // descendants. @@ -111,7 +117,7 @@ void CTxMemPool::UpdateForDescendants(txiter updateIt, cacheMap &cachedDescendan modifyCount++; cachedDescendants[updateIt].insert(cit); // Update ancestor state for each descendant - mapTx.modify(cit, update_ancestor_state(updateIt->GetTxSize(), updateIt->GetModifiedFee(), 1, updateIt->GetSigOpCount())); + mapTx.modify(cit, update_ancestor_state(updateIt->GetTxSize(), updateIt->GetModifiedFee(), 1, updateIt->GetSigOpCost())); } } mapTx.modify(updateIt, update_descendant_state(modifySize, modifyFee, modifyCount)); @@ -247,13 +253,13 @@ void CTxMemPool::UpdateEntryForAncestors(txiter it, const setEntries &setAncesto int64_t updateCount = setAncestors.size(); int64_t updateSize = 0; CAmount updateFee = 0; - int updateSigOps = 0; + int64_t updateSigOpsCost = 0; BOOST_FOREACH(txiter ancestorIt, setAncestors) { updateSize += ancestorIt->GetTxSize(); updateFee += ancestorIt->GetModifiedFee(); - updateSigOps += ancestorIt->GetSigOpCount(); + updateSigOpsCost += ancestorIt->GetSigOpCost(); } - mapTx.modify(it, update_ancestor_state(updateSize, updateFee, updateCount, updateSigOps)); + mapTx.modify(it, update_ancestor_state(updateSize, updateFee, updateCount, updateSigOpsCost)); } void CTxMemPool::UpdateChildrenForRemoval(txiter it) @@ -282,7 +288,7 @@ void CTxMemPool::UpdateForRemoveFromMempool(const setEntries &entriesToRemove, b setDescendants.erase(removeIt); // don't update state for self int64_t modifySize = -((int64_t)removeIt->GetTxSize()); CAmount modifyFee = -removeIt->GetModifiedFee(); - int modifySigOps = -removeIt->GetSigOpCount(); + int modifySigOps = -removeIt->GetSigOpCost(); BOOST_FOREACH(txiter dit, setDescendants) { mapTx.modify(dit, update_ancestor_state(modifySize, modifyFee, -1, modifySigOps)); } @@ -338,8 +344,8 @@ void CTxMemPoolEntry::UpdateAncestorState(int64_t modifySize, CAmount modifyFee, nModFeesWithAncestors += modifyFee; nCountWithAncestors += modifyCount; assert(int64_t(nCountWithAncestors) > 0); - nSigOpCountWithAncestors += modifySigOps; - assert(int(nSigOpCountWithAncestors) >= 0); + nSigOpCostWithAncestors += modifySigOps; + assert(int(nSigOpCostWithAncestors) >= 0); } CTxMemPool::CTxMemPool(const CFeeRate& _minReasonableRelayFee) : @@ -666,7 +672,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const bool fDependsWait = false; setEntries setParentCheck; int64_t parentSizes = 0; - unsigned int parentSigOpCount = 0; + int64_t parentSigOpCost = 0; BOOST_FOREACH(const CTxIn &txin, tx.vin) { // Check that every mempool transaction's inputs refer to available coins, or other mempool tx's. indexed_transaction_set::const_iterator it2 = mapTx.find(txin.prevout.hash); @@ -676,7 +682,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const fDependsWait = true; if (setParentCheck.insert(it2).second) { parentSizes += it2->GetTxSize(); - parentSigOpCount += it2->GetSigOpCount(); + parentSigOpCost += it2->GetSigOpCost(); } } else { const CCoins* coins = pcoins->AccessCoins(txin.prevout.hash); @@ -698,17 +704,17 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const uint64_t nCountCheck = setAncestors.size() + 1; uint64_t nSizeCheck = it->GetTxSize(); CAmount nFeesCheck = it->GetModifiedFee(); - unsigned int nSigOpCheck = it->GetSigOpCount(); + int64_t nSigOpCheck = it->GetSigOpCost(); BOOST_FOREACH(txiter ancestorIt, setAncestors) { nSizeCheck += ancestorIt->GetTxSize(); nFeesCheck += ancestorIt->GetModifiedFee(); - nSigOpCheck += ancestorIt->GetSigOpCount(); + nSigOpCheck += ancestorIt->GetSigOpCost(); } assert(it->GetCountWithAncestors() == nCountCheck); assert(it->GetSizeWithAncestors() == nSizeCheck); - assert(it->GetSigOpCountWithAncestors() == nSigOpCheck); + assert(it->GetSigOpCostWithAncestors() == nSigOpCheck); assert(it->GetModFeesWithAncestors() == nFeesCheck); // Check children against mapNextTx diff --git a/src/txmempool.h b/src/txmempool.h index d6d0d72ff5..e5a500e19d 100644 --- a/src/txmempool.h +++ b/src/txmempool.h @@ -78,7 +78,7 @@ class CTxMemPoolEntry private: std::shared_ptr<const CTransaction> tx; CAmount nFee; //!< Cached to avoid expensive parent-transaction lookups - size_t nTxSize; //!< ... and avoid recomputing tx size + size_t nTxCost; //!< ... and avoid recomputing tx cost (also used for GetTxSize()) size_t nModSize; //!< ... and modified size for priority size_t nUsageSize; //!< ... and total memory usage int64_t nTime; //!< Local time when entering the mempool @@ -87,7 +87,7 @@ private: bool hadNoDependencies; //!< Not dependent on any other txs when it entered the mempool CAmount inChainInputValue; //!< Sum of all txin values that are already in blockchain bool spendsCoinbase; //!< keep track of transactions that spend a coinbase - unsigned int sigOpCount; //!< Legacy sig ops plus P2SH sig op count + int64_t sigOpCost; //!< Total sigop cost int64_t feeDelta; //!< Used for determining the priority of the transaction for mining in a block LockPoints lockPoints; //!< Track the height and time at which tx was final @@ -104,13 +104,13 @@ private: uint64_t nCountWithAncestors; uint64_t nSizeWithAncestors; CAmount nModFeesWithAncestors; - unsigned int nSigOpCountWithAncestors; + int64_t nSigOpCostWithAncestors; public: CTxMemPoolEntry(const CTransaction& _tx, const CAmount& _nFee, int64_t _nTime, double _entryPriority, unsigned int _entryHeight, bool poolHasNoInputsOf, CAmount _inChainInputValue, bool spendsCoinbase, - unsigned int nSigOps, LockPoints lp); + int64_t nSigOpsCost, LockPoints lp); CTxMemPoolEntry(const CTxMemPoolEntry& other); const CTransaction& GetTx() const { return *this->tx; } @@ -121,11 +121,12 @@ public: */ double GetPriority(unsigned int currentHeight) const; const CAmount& GetFee() const { return nFee; } - size_t GetTxSize() const { return nTxSize; } + size_t GetTxSize() const; + size_t GetTxCost() const { return nTxCost; } int64_t GetTime() const { return nTime; } unsigned int GetHeight() const { return entryHeight; } bool WasClearAtEntry() const { return hadNoDependencies; } - unsigned int GetSigOpCount() const { return sigOpCount; } + int64_t GetSigOpCost() const { return sigOpCost; } int64_t GetModifiedFee() const { return nFee + feeDelta; } size_t DynamicMemoryUsage() const { return nUsageSize; } const LockPoints& GetLockPoints() const { return lockPoints; } @@ -149,7 +150,7 @@ public: uint64_t GetCountWithAncestors() const { return nCountWithAncestors; } uint64_t GetSizeWithAncestors() const { return nSizeWithAncestors; } CAmount GetModFeesWithAncestors() const { return nModFeesWithAncestors; } - unsigned int GetSigOpCountWithAncestors() const { return nSigOpCountWithAncestors; } + int64_t GetSigOpCostWithAncestors() const { return nSigOpCostWithAncestors; } mutable size_t vTxHashesIdx; //!< Index in mempool's vTxHashes }; @@ -172,18 +173,18 @@ struct update_descendant_state struct update_ancestor_state { - update_ancestor_state(int64_t _modifySize, CAmount _modifyFee, int64_t _modifyCount, int _modifySigOps) : - modifySize(_modifySize), modifyFee(_modifyFee), modifyCount(_modifyCount), modifySigOps(_modifySigOps) + update_ancestor_state(int64_t _modifySize, CAmount _modifyFee, int64_t _modifyCount, int64_t _modifySigOpsCost) : + modifySize(_modifySize), modifyFee(_modifyFee), modifyCount(_modifyCount), modifySigOpsCost(_modifySigOpsCost) {} void operator() (CTxMemPoolEntry &e) - { e.UpdateAncestorState(modifySize, modifyFee, modifyCount, modifySigOps); } + { e.UpdateAncestorState(modifySize, modifyFee, modifyCount, modifySigOpsCost); } private: int64_t modifySize; CAmount modifyFee; int64_t modifyCount; - int modifySigOps; + int64_t modifySigOpsCost; }; struct update_fee_delta diff --git a/src/versionbits.cpp b/src/versionbits.cpp index 043819c654..bf32ae6627 100644 --- a/src/versionbits.cpp +++ b/src/versionbits.cpp @@ -14,6 +14,10 @@ const struct BIP9DeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION { /*.name =*/ "csv", /*.gbt_force =*/ true, + }, + { + /*.name =*/ "segwit", + /*.gbt_force =*/ false, } }; diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp index 2d4e95911d..8538f880ff 100644 --- a/src/wallet/rpcwallet.cpp +++ b/src/wallet/rpcwallet.cpp @@ -1011,6 +1011,85 @@ UniValue addmultisigaddress(const UniValue& params, bool fHelp) return CBitcoinAddress(innerID).ToString(); } +class Witnessifier : public boost::static_visitor<bool> +{ +public: + CScriptID result; + + bool operator()(const CNoDestination &dest) const { return false; } + + bool operator()(const CKeyID &keyID) { + CPubKey pubkey; + if (pwalletMain && pwalletMain->GetPubKey(keyID, pubkey)) { + CScript basescript; + basescript << ToByteVector(pubkey) << OP_CHECKSIG; + CScript witscript = GetScriptForWitness(basescript); + pwalletMain->AddCScript(witscript); + result = CScriptID(witscript); + return true; + } + return false; + } + + bool operator()(const CScriptID &scriptID) { + CScript subscript; + if (pwalletMain && pwalletMain->GetCScript(scriptID, subscript)) { + int witnessversion; + std::vector<unsigned char> witprog; + if (subscript.IsWitnessProgram(witnessversion, witprog)) { + result = scriptID; + return true; + } + CScript witscript = GetScriptForWitness(subscript); + pwalletMain->AddCScript(witscript); + result = CScriptID(witscript); + return true; + } + return false; + } +}; + +UniValue addwitnessaddress(const UniValue& params, bool fHelp) +{ + if (!EnsureWalletIsAvailable(fHelp)) + return NullUniValue; + + if (fHelp || params.size() < 1 || params.size() > 1) + { + string msg = "addwitnessaddress \"address\"\n" + "\nAdd a witness address for a script (with pubkey or redeemscript known).\n" + "It returns the witness script.\n" + + "\nArguments:\n" + "1. \"address\" (string, required) An address known to the wallet\n" + + "\nResult:\n" + "\"witnessaddress\", (string) The value of the new address (P2SH of witness script).\n" + "}\n" + ; + throw runtime_error(msg); + } + + { + LOCK(cs_main); + if (!IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus()) && !GetBoolArg("-walletprematurewitness", false)) { + throw JSONRPCError(RPC_WALLET_ERROR, "Segregated witness not enabled on network"); + } + } + + CBitcoinAddress address(params[0].get_str()); + if (!address.IsValid()) + throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address"); + + Witnessifier w; + CTxDestination dest = address.Get(); + bool ret = boost::apply_visitor(w, dest); + if (!ret) { + throw JSONRPCError(RPC_WALLET_ERROR, "Public key or redeemscript not known to wallet"); + } + + return CBitcoinAddress(w.result).ToString(); +} struct tallyitem { @@ -2451,7 +2530,7 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp) // parse hex string from parameter CTransaction origTx; - if (!DecodeHexTx(origTx, params[0].get_str())) + if (!DecodeHexTx(origTx, params[0].get_str(), true)) throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed"); if (origTx.vout.size() == 0) @@ -2491,6 +2570,7 @@ static const CRPCCommand commands[] = { "hidden", "resendwallettransactions", &resendwallettransactions, true }, { "wallet", "abandontransaction", &abandontransaction, false }, { "wallet", "addmultisigaddress", &addmultisigaddress, true }, + { "wallet", "addwitnessaddress", &addwitnessaddress, true }, { "wallet", "backupwallet", &backupwallet, true }, { "wallet", "dumpprivkey", &dumpprivkey, true }, { "wallet", "dumpwallet", &dumpwallet, true }, diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index ba5f92a987..87b85eeb72 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2334,33 +2334,37 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt { bool signSuccess; const CScript& scriptPubKey = coin.first->vout[coin.second].scriptPubKey; - CScript& scriptSigRes = txNew.vin[nIn].scriptSig; + SignatureData sigdata; if (sign) - signSuccess = ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, SIGHASH_ALL), scriptPubKey, scriptSigRes); + signSuccess = ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.first->vout[coin.second].nValue, SIGHASH_ALL), scriptPubKey, sigdata); else - signSuccess = ProduceSignature(DummySignatureCreator(this), scriptPubKey, scriptSigRes); + signSuccess = ProduceSignature(DummySignatureCreator(this), scriptPubKey, sigdata); if (!signSuccess) { strFailReason = _("Signing transaction failed"); return false; + } else { + UpdateTransaction(txNew, nIn, sigdata); } + nIn++; } - unsigned int nBytes = ::GetSerializeSize(txNew, SER_NETWORK, PROTOCOL_VERSION); + unsigned int nBytes = GetVirtualTransactionSize(txNew); // Remove scriptSigs if we used dummy signatures for fee calculation if (!sign) { BOOST_FOREACH (CTxIn& vin, txNew.vin) vin.scriptSig = CScript(); + txNew.wit.SetNull(); } // Embed the constructed transaction data in wtxNew. *static_cast<CTransaction*>(&wtxNew) = CTransaction(txNew); // Limit size - if (nBytes >= MAX_STANDARD_TX_SIZE) + if (GetTransactionCost(txNew) >= MAX_STANDARD_TX_COST) { strFailReason = _("Transaction too large"); return false; diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h index 71b0ff26db..d083722dd2 100644 --- a/src/wallet/walletdb.h +++ b/src/wallet/walletdb.h @@ -7,6 +7,7 @@ #define BITCOIN_WALLET_WALLETDB_H #include "amount.h" +#include "primitives/transaction.h" #include "wallet/db.h" #include "key.h" |