mirror of https://github.com/bitcoin/bitcoin
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
5.1 KiB
142 lines
5.1 KiB
#!/usr/bin/env python3
|
|
# Copyright (c) 2022 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
""" Tests the validation:* tracepoint API interface.
|
|
See https://github.com/bitcoin/bitcoin/blob/master/doc/tracing.md#context-validation
|
|
"""
|
|
|
|
import ctypes
|
|
import time
|
|
|
|
# Test will be skipped if we don't have bcc installed
|
|
try:
|
|
from bcc import BPF, USDT # type: ignore[import]
|
|
except ImportError:
|
|
pass
|
|
|
|
from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal
|
|
|
|
|
|
validation_blockconnected_program = """
|
|
#include <uapi/linux/ptrace.h>
|
|
|
|
typedef signed long long i64;
|
|
|
|
struct connected_block
|
|
{
|
|
char hash[32];
|
|
int height;
|
|
i64 transactions;
|
|
int inputs;
|
|
i64 sigops;
|
|
u64 duration;
|
|
};
|
|
|
|
BPF_PERF_OUTPUT(block_connected);
|
|
int trace_block_connected(struct pt_regs *ctx) {
|
|
struct connected_block block = {};
|
|
bpf_usdt_readarg_p(1, ctx, &block.hash, 32);
|
|
bpf_usdt_readarg(2, ctx, &block.height);
|
|
bpf_usdt_readarg(3, ctx, &block.transactions);
|
|
bpf_usdt_readarg(4, ctx, &block.inputs);
|
|
bpf_usdt_readarg(5, ctx, &block.sigops);
|
|
bpf_usdt_readarg(6, ctx, &block.duration);
|
|
block_connected.perf_submit(ctx, &block, sizeof(block));
|
|
return 0;
|
|
}
|
|
"""
|
|
|
|
|
|
class ValidationTracepointTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
|
|
def skip_test_if_missing_module(self):
|
|
self.skip_if_platform_not_linux()
|
|
self.skip_if_no_bitcoind_tracepoints()
|
|
self.skip_if_no_python_bcc()
|
|
self.skip_if_no_bpf_permissions()
|
|
|
|
def run_test(self):
|
|
# Tests the validation:block_connected tracepoint by generating blocks
|
|
# and comparing the values passed in the tracepoint arguments with the
|
|
# blocks.
|
|
# See https://github.com/bitcoin/bitcoin/blob/master/doc/tracing.md#tracepoint-validationblock_connected
|
|
|
|
class Block(ctypes.Structure):
|
|
_fields_ = [
|
|
("hash", ctypes.c_ubyte * 32),
|
|
("height", ctypes.c_int),
|
|
("transactions", ctypes.c_int64),
|
|
("inputs", ctypes.c_int),
|
|
("sigops", ctypes.c_int64),
|
|
("duration", ctypes.c_uint64),
|
|
]
|
|
|
|
def __repr__(self):
|
|
return "ConnectedBlock(hash=%s height=%d, transactions=%d, inputs=%d, sigops=%d, duration=%d)" % (
|
|
bytes(self.hash[::-1]).hex(),
|
|
self.height,
|
|
self.transactions,
|
|
self.inputs,
|
|
self.sigops,
|
|
self.duration)
|
|
|
|
BLOCKS_EXPECTED = 2
|
|
expected_blocks = dict()
|
|
events = []
|
|
|
|
self.log.info("hook into the validation:block_connected tracepoint")
|
|
ctx = USDT(pid=self.nodes[0].process.pid)
|
|
ctx.enable_probe(probe="validation:block_connected",
|
|
fn_name="trace_block_connected")
|
|
bpf = BPF(text=validation_blockconnected_program,
|
|
usdt_contexts=[ctx], debug=0, cflags=["-Wno-error=implicit-function-declaration"])
|
|
|
|
def handle_blockconnected(_, data, __):
|
|
event = ctypes.cast(data, ctypes.POINTER(Block)).contents
|
|
self.log.info(f"handle_blockconnected(): {event}")
|
|
events.append(event)
|
|
|
|
bpf["block_connected"].open_perf_buffer(
|
|
handle_blockconnected)
|
|
|
|
self.log.info(f"mine {BLOCKS_EXPECTED} blocks")
|
|
generatetoaddress_duration = dict()
|
|
for _ in range(BLOCKS_EXPECTED):
|
|
start = time.time()
|
|
hash = self.generatetoaddress(self.nodes[0], 1, ADDRESS_BCRT1_UNSPENDABLE)[0]
|
|
generatetoaddress_duration[hash] = (time.time() - start) * 1e9 # in nanoseconds
|
|
expected_blocks[hash] = self.nodes[0].getblock(hash, 2)
|
|
|
|
bpf.perf_buffer_poll(timeout=200)
|
|
|
|
self.log.info(f"check that we correctly traced {BLOCKS_EXPECTED} blocks")
|
|
for event in events:
|
|
block_hash = bytes(event.hash[::-1]).hex()
|
|
block = expected_blocks[block_hash]
|
|
assert_equal(block["hash"], block_hash)
|
|
assert_equal(block["height"], event.height)
|
|
assert_equal(len(block["tx"]), event.transactions)
|
|
assert_equal(len([tx["vin"] for tx in block["tx"]]), event.inputs)
|
|
assert_equal(0, event.sigops) # no sigops in coinbase tx
|
|
# only plausibility checks
|
|
assert event.duration > 0
|
|
# generatetoaddress (mining and connecting) takes longer than
|
|
# connecting the block. In case the duration unit is off, we'll
|
|
# detect it with this assert.
|
|
assert event.duration < generatetoaddress_duration[block_hash]
|
|
del expected_blocks[block_hash]
|
|
assert_equal(BLOCKS_EXPECTED, len(events))
|
|
assert_equal(0, len(expected_blocks))
|
|
|
|
bpf.cleanup()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
ValidationTracepointTest(__file__).main()
|