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bitcoin/test/functional/wallet_backwards_compatibility.py

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#!/usr/bin/env python3
# Copyright (c) 2018-present The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Backwards compatibility functional test
Test various backwards compatibility scenarios. Requires previous releases binaries,
see test/README.md.
Due to RPC changes introduced in various versions the below tests
won't work for older versions without some patches or workarounds.
Use only the latest patch version of each release, unless a test specifically
needs an older patch version.
"""
import os
import shutil
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.test_framework import BitcoinTestFramework
from test_framework.descriptors import descsum_create
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
)
LAST_KEYPOOL_INDEX = 9 # Index of the last derived address with the keypool size of 10
class BackwardsCompatibilityTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 8
# Add new version after each release:
self.extra_args = [
["-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # Pre-release: use to mine blocks. noban for immediate tx relay
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # Pre-release: use to receive coins, swap wallets, etc
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # v25.0
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # v24.0.1
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # v23.0
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1", f"-keypool={LAST_KEYPOOL_INDEX + 1}"], # v22.0
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # v0.21.0
["-nowallet", "-walletrbf=1", "-addresstype=bech32", "-whitelist=noban@127.0.0.1"], # v0.20.1
]
self.wallet_names = [self.default_wallet_name]
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
self.skip_if_no_previous_releases()
def setup_nodes(self):
self.add_nodes(self.num_nodes, extra_args=self.extra_args, versions=[
None,
None,
250000,
240001,
230000,
220000,
210000,
200100,
])
self.start_nodes()
self.import_deterministic_coinbase_privkeys()
def split_version(self, node):
major = node.version // 10000
minor = (node.version % 10000) // 100
patch = (node.version % 100)
return (major, minor, patch)
def major_version_equals(self, node, major):
node_major, _, _ = self.split_version(node)
return node_major == major
def major_version_less_than(self, node, major):
node_major, _, _ = self.split_version(node)
return node_major < major
def major_version_at_least(self, node, major):
node_major, _, _ = self.split_version(node)
return node_major >= major
def test_v22_inactivehdchain_path(self):
self.log.info("Testing inactive hd chain bad derivation path cleanup")
# 0.21.x and 22.x would both produce bad derivation paths when topping up an inactive hd chain
# Make sure that this is being automatically cleaned up by migration
node_master = self.nodes[1]
node_v22 = self.nodes[self.num_nodes - 3]
wallet_name = "bad_deriv_path"
node_v22.createwallet(wallet_name=wallet_name, descriptors=False)
bad_deriv_wallet = node_v22.get_wallet_rpc(wallet_name)
# Make a dump of the wallet to get an unused address
dump_path = node_v22.wallets_path / f"{wallet_name}.dump"
bad_deriv_wallet.dumpwallet(dump_path)
addr = None
seed = None
with open(dump_path, encoding="utf8") as f:
for line in f:
if f"hdkeypath=m/0'/0'/{LAST_KEYPOOL_INDEX}'" in line:
addr = line.split(" ")[4].split("=")[1]
elif " hdseed=1 " in line:
seed = line.split(" ")[0]
assert addr is not None
assert seed is not None
# Rotate seed and unload
bad_deriv_wallet.sethdseed()
bad_deriv_wallet.unloadwallet()
# Receive at addr to trigger inactive chain topup on next load
self.nodes[0].sendtoaddress(addr, 1)
self.generate(self.nodes[0], 1, sync_fun=self.no_op)
self.sync_all(nodes=[self.nodes[0], node_master, node_v22])
node_v22.loadwallet(wallet_name)
# Dump again to find bad hd keypath
bad_deriv_path = f"m/0'/0'/{LAST_KEYPOOL_INDEX}'/0'/0'/{LAST_KEYPOOL_INDEX + 1}'"
good_deriv_path = f"m/0h/0h/{LAST_KEYPOOL_INDEX + 1}h"
os.unlink(dump_path)
bad_deriv_wallet.dumpwallet(dump_path)
bad_path_addr = None
with open(dump_path, encoding="utf8") as f:
for line in f:
if f"hdkeypath={bad_deriv_path}" in line:
bad_path_addr = line.split(" ")[4].split("=")[1]
assert bad_path_addr is not None
assert_equal(bad_deriv_wallet.getaddressinfo(bad_path_addr)["hdkeypath"], bad_deriv_path)
# Verify that this bad derivation path addr is actually at m/0'/0'/10' by making a new wallet with the same seed but larger keypool
node_v22.createwallet(wallet_name="path_verify", descriptors=False, blank=True)
verify_wallet = node_v22.get_wallet_rpc("path_verify")
verify_wallet.sethdseed(True, seed)
# Bad addr is after keypool, so need to generate it by refilling
verify_wallet.keypoolrefill(LAST_KEYPOOL_INDEX + 2)
assert_equal(verify_wallet.getaddressinfo(bad_path_addr)["hdkeypath"], good_deriv_path.replace("h", "'"))
# Migrate with master
# Since all keymeta records are now deleted after migration, the derivation path
# should now be correct as it is derived on-the-fly from the inactive hd chain's descriptor
backup_path = node_v22.wallets_path / f"{wallet_name}.bak"
bad_deriv_wallet.backupwallet(backup_path)
wallet_dir_master = os.path.join(node_master.wallets_path, wallet_name)
os.makedirs(wallet_dir_master, exist_ok=True)
shutil.copy(backup_path, os.path.join(wallet_dir_master, "wallet.dat"))
node_master.migratewallet(wallet_name)
bad_deriv_wallet_master = node_master.get_wallet_rpc(wallet_name)
assert_equal(bad_deriv_wallet_master.getaddressinfo(bad_path_addr)["hdkeypath"], good_deriv_path)
bad_deriv_wallet_master.unloadwallet()
# If we have sqlite3, verify that there are no keymeta records
try:
import sqlite3
wallet_db = node_master.wallets_path / wallet_name / "wallet.dat"
conn = sqlite3.connect(wallet_db)
with conn:
# Retrieve all records that have the "keymeta" prefix. The remaining key data varies for each record.
keymeta_rec = conn.execute("SELECT value FROM main where key >= x'076b65796d657461' AND key < x'076b65796d657462'").fetchone()
assert_equal(keymeta_rec, None)
conn.close()
except ImportError:
self.log.warning("sqlite3 module not available, skipping lack of keymeta records check")
def run_test(self):
node_miner = self.nodes[0]
node_master = self.nodes[1]
node_v21 = self.nodes[self.num_nodes - 2]
node_v20 = self.nodes[self.num_nodes - 1] # bdb only
legacy_nodes = self.nodes[2:] # Nodes that support legacy wallets
descriptors_nodes = self.nodes[2:-1] # Nodes that support descriptor wallets
self.generatetoaddress(node_miner, COINBASE_MATURITY + 1, node_miner.getnewaddress())
# Sanity check the test framework:
assert_equal(node_v20.getblockchaininfo()["blocks"], COINBASE_MATURITY + 1)
self.log.info("Test wallet backwards compatibility...")
# Create a number of wallets and open them in older versions:
# w1: regular wallet, created on master: update this test when default
# wallets can no longer be opened by older versions.
node_master.createwallet(wallet_name="w1")
wallet = node_master.get_wallet_rpc("w1")
info = wallet.getwalletinfo()
assert info['private_keys_enabled']
assert info['keypoolsize'] > 0
# Create a confirmed transaction, receiving coins
address = wallet.getnewaddress()
node_miner.sendtoaddress(address, 10)
self.sync_mempools()
self.generate(node_miner, 1)
# Create a conflicting transaction using RBF
return_address = node_miner.getnewaddress()
tx1_id = node_master.sendtoaddress(return_address, 1)
tx2_id = node_master.bumpfee(tx1_id)["txid"]
# Confirm the transaction
self.sync_mempools()
self.generate(node_miner, 1)
# Create another conflicting transaction using RBF
tx3_id = node_master.sendtoaddress(return_address, 1)
tx4_id = node_master.bumpfee(tx3_id)["txid"]
self.sync_mempools()
# Abandon transaction, but don't confirm
node_master.abandontransaction(tx3_id)
# w2: wallet with private keys disabled, created on master: update this
# test when default wallets private keys disabled can no longer be
# opened by older versions.
node_master.createwallet(wallet_name="w2", disable_private_keys=True)
wallet = node_master.get_wallet_rpc("w2")
info = wallet.getwalletinfo()
assert info['private_keys_enabled'] == False
assert info['keypoolsize'] == 0
# w3: blank wallet, created on master: update this
# test when default blank wallets can no longer be opened by older versions.
node_master.createwallet(wallet_name="w3", blank=True)
wallet = node_master.get_wallet_rpc("w3")
info = wallet.getwalletinfo()
assert info['private_keys_enabled']
assert info['keypoolsize'] == 0
# Unload wallets and copy to older nodes:
node_master_wallets_dir = node_master.wallets_path
node_master.unloadwallet("w1")
node_master.unloadwallet("w2")
node_master.unloadwallet("w3")
for node in legacy_nodes:
# Copy wallets to previous version
for wallet in os.listdir(node_master_wallets_dir):
dest = node.wallets_path / wallet
source = node_master_wallets_dir / wallet
shutil.copytree(source, dest)
self.log.info("Test that a wallet made on master can be opened on:")
# This test only works on the nodes that support descriptor wallets
# since we can no longer create legacy wallets.
for node in descriptors_nodes:
self.log.info(f"- {node.version}")
for wallet_name in ["w1", "w2", "w3"]:
if self.major_version_less_than(node, 22) and wallet_name == "w1":
# Descriptor wallets created after 0.21 have taproot descriptors which 0.21 does not support, tested below
continue
# Also try to reopen on master after opening on old
for n in [node, node_master]:
n.loadwallet(wallet_name)
wallet = n.get_wallet_rpc(wallet_name)
info = wallet.getwalletinfo()
if wallet_name == "w1":
assert info['private_keys_enabled'] == True
assert info['keypoolsize'] > 0
txs = wallet.listtransactions()
assert_equal(len(txs), 5)
assert_equal(txs[1]["txid"], tx1_id)
assert_equal(txs[2]["walletconflicts"], [tx1_id])
assert_equal(txs[1]["replaced_by_txid"], tx2_id)
assert not txs[1]["abandoned"]
assert_equal(txs[1]["confirmations"], -1)
assert_equal(txs[2]["blockindex"], 1)
assert txs[3]["abandoned"]
assert_equal(txs[4]["walletconflicts"], [tx3_id])
assert_equal(txs[3]["replaced_by_txid"], tx4_id)
assert not hasattr(txs[3], "blockindex")
elif wallet_name == "w2":
assert info['private_keys_enabled'] == False
assert info['keypoolsize'] == 0
else:
assert info['private_keys_enabled'] == True
assert info['keypoolsize'] == 0
# Copy back to master
wallet.unloadwallet()
if n == node:
shutil.rmtree(node_master.wallets_path / wallet_name)
shutil.copytree(
n.wallets_path / wallet_name,
node_master.wallets_path / wallet_name,
)
# Check that descriptor wallets don't work on legacy only nodes
self.log.info("Test descriptor wallet incompatibility on v0.20")
# Descriptor wallets appear to be corrupted wallets to old software
assert self.major_version_equals(node_v20, 20)
for wallet_name in ["w1", "w2", "w3"]:
assert_raises_rpc_error(-4, "Wallet file verification failed: wallet.dat corrupt, salvage failed", node_v20.loadwallet, wallet_name)
# w1 cannot be opened by 0.21 since it contains a taproot descriptor
self.log.info("Test that 0.21 cannot open wallet containing tr() descriptors")
assert_raises_rpc_error(-1, "map::at", node_v21.loadwallet, "w1")
self.log.info("Test that a wallet can upgrade to and downgrade from master, from:")
for node in descriptors_nodes:
self.log.info(f"- {node.version}")
wallet_name = f"up_{node.version}"
node.rpc.createwallet(wallet_name=wallet_name, descriptors=True)
wallet_prev = node.get_wallet_rpc(wallet_name)
address = wallet_prev.getnewaddress('', "bech32")
addr_info = wallet_prev.getaddressinfo(address)
hdkeypath = addr_info["hdkeypath"].replace("'", "h")
pubkey = addr_info["pubkey"]
# Make a backup of the wallet file
backup_path = os.path.join(self.options.tmpdir, f"{wallet_name}.dat")
wallet_prev.backupwallet(backup_path)
# Remove the wallet from old node
wallet_prev.unloadwallet()
# Restore the wallet to master
load_res = node_master.restorewallet(wallet_name, backup_path)
# There should be no warnings
assert "warnings" not in load_res
wallet = node_master.get_wallet_rpc(wallet_name)
info = wallet.getaddressinfo(address)
descriptor = f"wpkh([{info['hdmasterfingerprint']}{hdkeypath[1:]}]{pubkey})"
assert_equal(info["desc"], descsum_create(descriptor))
# Make backup so the wallet can be copied back to old node
down_wallet_name = f"re_down_{node.version}"
down_backup_path = os.path.join(self.options.tmpdir, f"{down_wallet_name}.dat")
wallet.backupwallet(down_backup_path)
# Check that taproot descriptors can be added to 0.21 wallets
# This must be done after the backup is created so that 0.21 can still load
# the backup
if self.major_version_equals(node, 21):
assert_raises_rpc_error(-12, "No bech32m addresses available", wallet.getnewaddress, address_type="bech32m")
xpubs = wallet.gethdkeys(active_only=True)
assert_equal(len(xpubs), 1)
assert_equal(len(xpubs[0]["descriptors"]), 6)
wallet.createwalletdescriptor("bech32m")
xpubs = wallet.gethdkeys(active_only=True)
assert_equal(len(xpubs), 1)
assert_equal(len(xpubs[0]["descriptors"]), 8)
tr_descs = [desc["desc"] for desc in xpubs[0]["descriptors"] if desc["desc"].startswith("tr(")]
assert_equal(len(tr_descs), 2)
for desc in tr_descs:
assert info["hdmasterfingerprint"] in desc
wallet.getnewaddress(address_type="bech32m")
wallet.unloadwallet()
# Check that no automatic upgrade broke downgrading the wallet
target_dir = node.wallets_path / down_wallet_name
os.makedirs(target_dir, exist_ok=True)
shutil.copyfile(
down_backup_path,
target_dir / "wallet.dat"
)
node.loadwallet(down_wallet_name)
wallet_res = node.get_wallet_rpc(down_wallet_name)
info = wallet_res.getaddressinfo(address)
assert_equal(info, addr_info)
self.log.info("Test that a wallet from a legacy only node must be migrated, from:")
for node in legacy_nodes:
self.log.info(f"- {node.version}")
wallet_name = f"legacy_up_{node.version}"
if self.major_version_at_least(node, 21):
node.rpc.createwallet(wallet_name=wallet_name, descriptors=False)
else:
node.rpc.createwallet(wallet_name=wallet_name)
wallet_prev = node.get_wallet_rpc(wallet_name)
address = wallet_prev.getnewaddress('', "bech32")
addr_info = wallet_prev.getaddressinfo(address)
# Make a backup of the wallet file
backup_path = os.path.join(self.options.tmpdir, f"{wallet_name}.dat")
wallet_prev.backupwallet(backup_path)
# Remove the wallet from old node
wallet_prev.unloadwallet()
# Restore the wallet to master
# Legacy wallets are no longer supported. Trying to load these should result in an error
assert_raises_rpc_error(-18, "The wallet appears to be a Legacy wallet, please use the wallet migration tool (migratewallet RPC)", node_master.restorewallet, wallet_name, backup_path)
self.test_v22_inactivehdchain_path()
if __name__ == '__main__':
BackwardsCompatibilityTest(__file__).main()
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