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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1#!/usr/bin/env python3
2# Copyright (c) 2022-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6"""  Tests the net:* tracepoint API interface.
7     See https://github.com/bitcoin/bitcoin/blob/master/doc/tracing.md#context-net
8"""
9
10import ctypes
11from io import BytesIO
12# Test will be skipped if we don't have bcc installed
13try:
14    from bcc import BPF, USDT  # type: ignore[import]
15except ImportError:
16    pass
17from test_framework.messages import CBlockHeader, MAX_HEADERS_RESULTS, msg_headers, msg_version
18from test_framework.p2p import P2PInterface
19from test_framework.test_framework import BitcoinTestFramework
20from test_framework.util import (
21    assert_equal,
22    assert_greater_than,
23    bpf_cflags,
24)
25
26# Tor v3 addresses are 62 chars + 6 chars for the port (':12345').
27MAX_PEER_ADDR_LENGTH = 68
28MAX_PEER_CONN_TYPE_LENGTH = 20
29MAX_MSG_TYPE_LENGTH = 20
30MAX_MISBEHAVING_MESSAGE_LENGTH = 128
31# We won't process messages larger than 150 byte in this test. For reading
32# larger messanges see contrib/tracing/log_raw_p2p_msgs.py
33MAX_MSG_DATA_LENGTH = 150
34
35# from net_address.h
36NETWORK_TYPE_UNROUTABLE = 0
37# Use in -maxconnections. Results in a maximum of 21 inbound connections
38MAX_CONNECTIONS = 53
39MAX_INBOUND_CONNECTIONS = 21 # 10 outbound and 1 feeler, (MAX_CONNECTIONS - 10 - 1) / 2 slots for tx-relaying inbounds
40
41net_tracepoints_program = """
42#include <uapi/linux/ptrace.h>
43
44#define MAX_PEER_ADDR_LENGTH {}
45#define MAX_PEER_CONN_TYPE_LENGTH {}
46#define MAX_MSG_TYPE_LENGTH {}
47#define MAX_MSG_DATA_LENGTH {}
48#define MAX_MISBEHAVING_MESSAGE_LENGTH {}
49""".format(
50    MAX_PEER_ADDR_LENGTH,
51    MAX_PEER_CONN_TYPE_LENGTH,
52    MAX_MSG_TYPE_LENGTH,
53    MAX_MSG_DATA_LENGTH,
54    MAX_MISBEHAVING_MESSAGE_LENGTH,
55) + """
56// A min() macro. Prefixed with _TRACEPOINT_TEST to avoid collision with other MIN macros.
57#define _TRACEPOINT_TEST_MIN(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
58
59struct p2p_message
60{
61    u64     peer_id;
62    char    peer_addr[MAX_PEER_ADDR_LENGTH];
63    char    peer_conn_type[MAX_PEER_CONN_TYPE_LENGTH];
64    char    msg_type[MAX_MSG_TYPE_LENGTH];
65    u64     msg_size;
66    u8      msg[MAX_MSG_DATA_LENGTH];
67};
68
69struct Connection
70{
71    u64     id;
72    char    addr[MAX_PEER_ADDR_LENGTH];
73    char    type[MAX_PEER_CONN_TYPE_LENGTH];
74    u32     network;
75};
76
77struct NewConnection
78{
79    struct Connection   conn;
80    u64                 existing;
81};
82
83struct ClosedConnection
84{
85    struct Connection   conn;
86    u64                 time_established;
87};
88
89struct MisbehavingConnection
90{
91    u64     id;
92    char    message[MAX_MISBEHAVING_MESSAGE_LENGTH];
93};
94
95BPF_PERF_OUTPUT(inbound_messages);
96int trace_inbound_message(struct pt_regs *ctx) {
97    struct p2p_message msg = {};
98    void *paddr = NULL, *pconn_type = NULL, *pmsg_type = NULL, *pmsg = NULL;
99    bpf_usdt_readarg(1, ctx, &msg.peer_id);
100    bpf_usdt_readarg(2, ctx, &paddr);
101    bpf_probe_read_user_str(&msg.peer_addr, sizeof(msg.peer_addr), paddr);
102    bpf_usdt_readarg(3, ctx, &pconn_type);
103    bpf_probe_read_user_str(&msg.peer_conn_type, sizeof(msg.peer_conn_type), pconn_type);
104    bpf_usdt_readarg(4, ctx, &pmsg_type);
105    bpf_probe_read_user_str(&msg.msg_type, sizeof(msg.msg_type), pmsg_type);
106    bpf_usdt_readarg(5, ctx, &msg.msg_size);
107    bpf_usdt_readarg(6, ctx, &pmsg);
108    bpf_probe_read_user(&msg.msg, _TRACEPOINT_TEST_MIN(msg.msg_size, MAX_MSG_DATA_LENGTH), pmsg);
109    inbound_messages.perf_submit(ctx, &msg, sizeof(msg));
110    return 0;
111}
112
113BPF_PERF_OUTPUT(outbound_messages);
114int trace_outbound_message(struct pt_regs *ctx) {
115    struct p2p_message msg = {};
116    void *paddr = NULL, *pconn_type = NULL, *pmsg_type = NULL, *pmsg = NULL;
117    bpf_usdt_readarg(1, ctx, &msg.peer_id);
118    bpf_usdt_readarg(1, ctx, &msg.peer_id);
119    bpf_usdt_readarg(2, ctx, &paddr);
120    bpf_probe_read_user_str(&msg.peer_addr, sizeof(msg.peer_addr), paddr);
121    bpf_usdt_readarg(3, ctx, &pconn_type);
122    bpf_probe_read_user_str(&msg.peer_conn_type, sizeof(msg.peer_conn_type), pconn_type);
123    bpf_usdt_readarg(4, ctx, &pmsg_type);
124    bpf_probe_read_user_str(&msg.msg_type, sizeof(msg.msg_type), pmsg_type);
125    bpf_usdt_readarg(5, ctx, &msg.msg_size);
126    bpf_usdt_readarg(6, ctx, &pmsg);
127    bpf_probe_read_user(&msg.msg, _TRACEPOINT_TEST_MIN(msg.msg_size, MAX_MSG_DATA_LENGTH), pmsg);
128    outbound_messages.perf_submit(ctx, &msg, sizeof(msg));
129    return 0;
130};
131
132BPF_PERF_OUTPUT(inbound_connections);
133int trace_inbound_connection(struct pt_regs *ctx) {
134    struct NewConnection inbound = {};
135    void *conn_type_pointer = NULL, *address_pointer = NULL;
136    bpf_usdt_readarg(1, ctx, &inbound.conn.id);
137    bpf_usdt_readarg(2, ctx, &address_pointer);
138    bpf_usdt_readarg(3, ctx, &conn_type_pointer);
139    bpf_usdt_readarg(4, ctx, &inbound.conn.network);
140    bpf_usdt_readarg(5, ctx, &inbound.existing);
141    bpf_probe_read_user_str(&inbound.conn.addr, sizeof(inbound.conn.addr), address_pointer);
142    bpf_probe_read_user_str(&inbound.conn.type, sizeof(inbound.conn.type), conn_type_pointer);
143    inbound_connections.perf_submit(ctx, &inbound, sizeof(inbound));
144    return 0;
145};
146
147BPF_PERF_OUTPUT(outbound_connections);
148int trace_outbound_connection(struct pt_regs *ctx) {
149    struct NewConnection outbound = {};
150    void *conn_type_pointer = NULL, *address_pointer = NULL;
151    bpf_usdt_readarg(1, ctx, &outbound.conn.id);
152    bpf_usdt_readarg(2, ctx, &address_pointer);
153    bpf_usdt_readarg(3, ctx, &conn_type_pointer);
154    bpf_usdt_readarg(4, ctx, &outbound.conn.network);
155    bpf_usdt_readarg(5, ctx, &outbound.existing);
156    bpf_probe_read_user_str(&outbound.conn.addr, sizeof(outbound.conn.addr), address_pointer);
157    bpf_probe_read_user_str(&outbound.conn.type, sizeof(outbound.conn.type), conn_type_pointer);
158    outbound_connections.perf_submit(ctx, &outbound, sizeof(outbound));
159    return 0;
160};
161
162BPF_PERF_OUTPUT(evicted_inbound_connections);
163int trace_evicted_inbound_connection(struct pt_regs *ctx) {
164    struct ClosedConnection evicted = {};
165    void *conn_type_pointer = NULL, *address_pointer = NULL;
166    bpf_usdt_readarg(1, ctx, &evicted.conn.id);
167    bpf_usdt_readarg(2, ctx, &address_pointer);
168    bpf_usdt_readarg(3, ctx, &conn_type_pointer);
169    bpf_usdt_readarg(4, ctx, &evicted.conn.network);
170    bpf_usdt_readarg(5, ctx, &evicted.time_established);
171    bpf_probe_read_user_str(&evicted.conn.addr, sizeof(evicted.conn.addr), address_pointer);
172    bpf_probe_read_user_str(&evicted.conn.type, sizeof(evicted.conn.type), conn_type_pointer);
173    evicted_inbound_connections.perf_submit(ctx, &evicted, sizeof(evicted));
174    return 0;
175};
176
177BPF_PERF_OUTPUT(misbehaving_connections);
178int trace_misbehaving_connection(struct pt_regs *ctx) {
179    struct MisbehavingConnection misbehaving = {};
180    void *message_pointer = NULL;
181    bpf_usdt_readarg(1, ctx, &misbehaving.id);
182    bpf_usdt_readarg(2, ctx, &message_pointer);
183    bpf_probe_read_user_str(&misbehaving.message, sizeof(misbehaving.message), message_pointer);
184    misbehaving_connections.perf_submit(ctx, &misbehaving, sizeof(misbehaving));
185    return 0;
186};
187
188BPF_PERF_OUTPUT(closed_connections);
189int trace_closed_connection(struct pt_regs *ctx) {
190    struct ClosedConnection closed = {};
191    void *conn_type_pointer = NULL, *address_pointer = NULL;
192    bpf_usdt_readarg(1, ctx, &closed.conn.id);
193    bpf_usdt_readarg(2, ctx, &address_pointer);
194    bpf_usdt_readarg(3, ctx, &conn_type_pointer);
195    bpf_usdt_readarg(4, ctx, &closed.conn.network);
196    bpf_usdt_readarg(5, ctx, &closed.time_established);
197    bpf_probe_read_user_str(&closed.conn.addr, sizeof(closed.conn.addr), address_pointer);
198    bpf_probe_read_user_str(&closed.conn.type, sizeof(closed.conn.type), conn_type_pointer);
199    closed_connections.perf_submit(ctx, &closed, sizeof(closed));
200    return 0;
201};
202"""
203
204
205class Connection(ctypes.Structure):
206    _fields_ = [
207        ("id", ctypes.c_uint64),
208        ("addr", ctypes.c_char * MAX_PEER_ADDR_LENGTH),
209        ("conn_type", ctypes.c_char * MAX_PEER_CONN_TYPE_LENGTH),
210        ("network", ctypes.c_uint32),
211    ]
212
213    def __repr__(self):
214        return f"Connection(peer={self.id}, addr={self.addr.decode('utf-8')}, conn_type={self.conn_type.decode('utf-8')}, network={self.network})"
215
216
217class NewConnection(ctypes.Structure):
218    _fields_ = [
219        ("conn", Connection),
220        ("existing", ctypes.c_uint64),
221    ]
222
223    def __repr__(self):
224        return f"NewConnection(conn={self.conn}, existing={self.existing})"
225
226
227class ClosedConnection(ctypes.Structure):
228    _fields_ = [
229        ("conn", Connection),
230        ("time_established", ctypes.c_uint64),
231    ]
232
233    def __repr__(self):
234        return f"ClosedConnection(conn={self.conn}, time_established={self.time_established})"
235
236
237class MisbehavingConnection(ctypes.Structure):
238    _fields_ = [
239        ("id", ctypes.c_uint64),
240        ("message", ctypes.c_char * MAX_MISBEHAVING_MESSAGE_LENGTH),
241    ]
242
243    def __repr__(self):
244        return f"MisbehavingConnection(id={self.id}, message={self.message})"
245
246
247class NetTracepointTest(BitcoinTestFramework):
248    def set_test_params(self):
249        self.num_nodes = 1
250        self.extra_args = [[f'-maxconnections={MAX_CONNECTIONS}']]

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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