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test: Use MiniWallet in test_no_inherited_signaling RBF test

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pull/826/head
MarcoFalke 3 years ago
parent fab871f649
commit fab7e99c2a
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2 changed files with 42 additions and 47 deletions
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87
test/functional/feature_rbf.py
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@ -7,14 +7,16 @@
from decimal import Decimal
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut
from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut, BIP125_SEQUENCE_NUMBER
from test_framework.script import CScript, OP_DROP
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal, assert_raises_rpc_error, satoshi_round
from test_framework.script_util import DUMMY_P2WPKH_SCRIPT, DUMMY_2_P2WPKH_SCRIPT
from test_framework.wallet import MiniWallet
MAX_REPLACEMENT_LIMIT = 100
def txToHex(tx):
return tx.serialize().hex()
@ -565,67 +567,60 @@ class ReplaceByFeeTest(BitcoinTestFramework):
assert_equal(json1["vin"][0]["sequence"], 4294967294)
def test_no_inherited_signaling(self):
# Send tx from which to conflict outputs later
base_txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), Decimal("10"))
self.nodes[0].generate(1)
self.sync_blocks()
wallet = MiniWallet(self.nodes[0])
wallet.scan_blocks(start=76, num=1)
confirmed_utxo = wallet.get_utxo()
# Create an explicitly opt-in parent transaction
optin_parent_tx = self.nodes[0].createrawtransaction([{
'txid': base_txid,
'vout': 0,
"sequence": 0xfffffffd,
}], {self.nodes[0].getnewaddress(): Decimal("9.99998")})
optin_parent_tx = self.nodes[0].signrawtransactionwithwallet(optin_parent_tx)
# Broadcast parent tx
optin_parent_txid = self.nodes[0].sendrawtransaction(hexstring=optin_parent_tx["hex"], maxfeerate=0)
assert optin_parent_txid in self.nodes[0].getrawmempool()
replacement_parent_tx = self.nodes[0].createrawtransaction([{
'txid': base_txid,
'vout': 0,
"sequence": 0xfffffffd,
}], {self.nodes[0].getnewaddress(): Decimal("9.90000")})
replacement_parent_tx = self.nodes[0].signrawtransactionwithwallet(replacement_parent_tx)
optin_parent_tx = wallet.send_self_transfer(
from_node=self.nodes[0],
utxo_to_spend=confirmed_utxo,
sequence=BIP125_SEQUENCE_NUMBER,
fee_rate=Decimal('0.01'),
)
assert_equal(True, self.nodes[0].getmempoolentry(optin_parent_tx['txid'])['bip125-replaceable'])
replacement_parent_tx = wallet.create_self_transfer(
from_node=self.nodes[0],
utxo_to_spend=confirmed_utxo,
sequence=BIP125_SEQUENCE_NUMBER,
fee_rate=Decimal('0.02'),
)
# Test if parent tx can be replaced.
res = self.nodes[0].testmempoolaccept(rawtxs=[replacement_parent_tx['hex']], maxfeerate=0)[0]
res = self.nodes[0].testmempoolaccept(rawtxs=[replacement_parent_tx['hex']])[0]
# Parent can be replaced.
assert_equal(res['allowed'], True)
# Create an opt-out child tx spending the opt-in parent
optout_child_tx = self.nodes[0].createrawtransaction([{
'txid': optin_parent_txid,
'vout': 0,
"sequence": 0xffffffff,
}], {self.nodes[0].getnewaddress(): Decimal("9.99990")})
optout_child_tx = self.nodes[0].signrawtransactionwithwallet(optout_child_tx)
# Broadcast child tx
optout_child_txid = self.nodes[0].sendrawtransaction(hexstring=optout_child_tx["hex"], maxfeerate=0)
assert optout_child_txid in self.nodes[0].getrawmempool()
replacement_child_tx = self.nodes[0].createrawtransaction([{
'txid': optin_parent_txid,
'vout': 0,
"sequence": 0xffffffff,
}], {self.nodes[0].getnewaddress(): Decimal("9.00000")})
replacement_child_tx = self.nodes[0].signrawtransactionwithwallet(replacement_child_tx)
parent_utxo = wallet.get_utxo(txid=optin_parent_tx['txid'])
optout_child_tx = wallet.send_self_transfer(
from_node=self.nodes[0],
utxo_to_spend=parent_utxo,
sequence=0xffffffff,
fee_rate=Decimal('0.01'),
)
# Reports true due to inheritance
assert_equal(True, self.nodes[0].getmempoolentry(optout_child_tx['txid'])['bip125-replaceable'])
replacement_child_tx = wallet.create_self_transfer(
from_node=self.nodes[0],
utxo_to_spend=parent_utxo,
sequence=0xffffffff,
fee_rate=Decimal('0.02'),
mempool_valid=False,
)
# Broadcast replacement child tx
# BIP 125 :
# 1. The original transactions signal replaceability explicitly or through inheritance as described in the above
# Summary section.
# The original transaction (`optout_child_tx`) doesn't signal RBF but its parent (`optin_parent_txid`) does.
# The original transaction (`optout_child_tx`) doesn't signal RBF but its parent (`optin_parent_tx`) does.
# The replacement transaction (`replacement_child_tx`) should be able to replace the original transaction.
# See CVE-2021-31876 for further explanations.
assert optin_parent_txid in self.nodes[0].getrawmempool()
assert_equal(True, self.nodes[0].getmempoolentry(optin_parent_tx['txid'])['bip125-replaceable'])
assert_raises_rpc_error(-26, 'txn-mempool-conflict', self.nodes[0].sendrawtransaction, replacement_child_tx["hex"], 0)
if __name__ == '__main__':

2
test/functional/test_framework/messages.py
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@ -39,7 +39,7 @@ MAX_BLOOM_HASH_FUNCS = 50
COIN = 100000000 # 1 btc in satoshis
MAX_MONEY = 21000000 * COIN
BIP125_SEQUENCE_NUMBER = 0xfffffffd # Sequence number that is BIP 125 opt-in and BIP 68-opt-out
BIP125_SEQUENCE_NUMBER = 0xfffffffd # Sequence number that is rbf-opt-in (BIP 125) and csv-opt-out (BIP 68)
MAX_PROTOCOL_MESSAGE_LENGTH = 4000000 # Maximum length of incoming protocol messages
MAX_HEADERS_RESULTS = 2000 # Number of headers sent in one getheaders result

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