mirror of https://github.com/bitcoin/bitcoin
91 lines
3.9 KiB
Python
Executable File
91 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2023-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.
|
|
"""Test running bitcoind with -reindex from a read-only blockstore
|
|
- Start a node, generate blocks, then restart with -reindex after setting blk files to read-only
|
|
"""
|
|
|
|
import os
|
|
import stat
|
|
import subprocess
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
|
|
|
|
class BlockstoreReindexTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.setup_clean_chain = True
|
|
self.num_nodes = 1
|
|
self.extra_args = [["-fastprune"]]
|
|
|
|
def reindex_readonly(self):
|
|
self.log.debug("Generate block big enough to start second block file")
|
|
fastprune_blockfile_size = 0x10000
|
|
opreturn = "6a"
|
|
nulldata = fastprune_blockfile_size * "ff"
|
|
self.generateblock(self.nodes[0], output=f"raw({opreturn}{nulldata})", transactions=[])
|
|
block_count = self.nodes[0].getblockcount()
|
|
self.stop_node(0)
|
|
|
|
assert (self.nodes[0].chain_path / "blocks" / "blk00000.dat").exists()
|
|
assert (self.nodes[0].chain_path / "blocks" / "blk00001.dat").exists()
|
|
|
|
self.log.debug("Make the first block file read-only")
|
|
filename = self.nodes[0].chain_path / "blocks" / "blk00000.dat"
|
|
filename.chmod(stat.S_IREAD)
|
|
|
|
undo_immutable = lambda: None
|
|
# Linux
|
|
try:
|
|
subprocess.run(['chattr'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
|
|
try:
|
|
subprocess.run(['chattr', '+i', filename], capture_output=True, check=True)
|
|
undo_immutable = lambda: subprocess.check_call(['chattr', '-i', filename])
|
|
self.log.info("Made file immutable with chattr")
|
|
except subprocess.CalledProcessError as e:
|
|
self.log.warning(str(e))
|
|
if e.stdout:
|
|
self.log.warning(f"stdout: {e.stdout}")
|
|
if e.stderr:
|
|
self.log.warning(f"stderr: {e.stderr}")
|
|
if os.getuid() == 0:
|
|
self.log.warning("Return early on Linux under root, because chattr failed.")
|
|
self.log.warning("This should only happen due to missing capabilities in a container.")
|
|
self.log.warning("Make sure to --cap-add LINUX_IMMUTABLE if you want to run this test.")
|
|
undo_immutable = False
|
|
except Exception:
|
|
# macOS, and *BSD
|
|
try:
|
|
subprocess.run(['chflags'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
|
|
try:
|
|
subprocess.run(['chflags', 'uchg', filename], capture_output=True, check=True)
|
|
undo_immutable = lambda: subprocess.check_call(['chflags', 'nouchg', filename])
|
|
self.log.info("Made file immutable with chflags")
|
|
except subprocess.CalledProcessError as e:
|
|
self.log.warning(str(e))
|
|
if e.stdout:
|
|
self.log.warning(f"stdout: {e.stdout}")
|
|
if e.stderr:
|
|
self.log.warning(f"stderr: {e.stderr}")
|
|
if os.getuid() == 0:
|
|
self.log.warning("Return early on BSD under root, because chflags failed.")
|
|
undo_immutable = False
|
|
except Exception:
|
|
pass
|
|
|
|
if undo_immutable:
|
|
self.log.debug("Attempt to restart and reindex the node with the unwritable block file")
|
|
with self.nodes[0].wait_for_debug_log([b"Reindexing finished"]):
|
|
self.start_node(0, extra_args=['-reindex', '-fastprune'])
|
|
assert block_count == self.nodes[0].getblockcount()
|
|
undo_immutable()
|
|
|
|
filename.chmod(0o777)
|
|
|
|
def run_test(self):
|
|
self.reindex_readonly()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
BlockstoreReindexTest().main()
|