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wireshark/epan/dissectors/packet-bitcoin.c

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/* packet-bitcoin.c
* Routines for bitcoin dissection
* Copyright 2011, Christian Svensson <blue@cmd.nu>
* Bitcoin address: 15Y2EN5mLnsTt3CZBfgpnZR5SeLwu7WEHz
*
* See https://en.bitcoin.it/wiki/Protocol_specification
*
* Updated 2015, Laurenz Kamp <laurenz.kamp@gmx.de>
* Changes made:
* Updated dissectors:
* -> ping: ping packets now have a nonce.
* -> version: If version >= 70002, version messages have a relay flag.
* -> Messages with no payload: Added mempool and filterclear messages.
* Added dissectors:
* -> pong message
* -> notfound message
* -> reject message
* -> filterload
* -> filteradd
* -> merkleblock
* -> headers
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#define NEW_PROTO_TREE_API
#include "config.h"
#include <epan/packet.h>
#include <epan/exceptions.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include "packet-tcp.h"
#define BITCOIN_MAIN_MAGIC_NUMBER 0xD9B4BEF9
#define BITCOIN_TESTNET_MAGIC_NUMBER 0xDAB5BFFA
#define BITCOIN_TESTNET3_MAGIC_NUMBER 0x0709110B
static const value_string inv_types[] =
{
{ 0, "ERROR" },
{ 1, "MSG_TX" },
{ 2, "MSG_BLOCK" },
{ 0, NULL }
};
static const value_string reject_ccode[] =
{
{ 0x01, "REJECT_MALFORMED" },
{ 0x10, "REJECT_INVALID" },
{ 0x11, "REJECT_OBSOLETE" },
{ 0x12, "REJECT_DUPLICATE" },
{ 0x40, "REJECT_NONSTANDARD" },
{ 0x41, "REJECT_DUST" },
{ 0x42, "REJECT_INSUFFICIENTFEE" },
{ 0x43, "REJECT_CHECKPOINT" },
{ 0, NULL }
};
static const value_string filterload_nflags[] =
{
{ 0, "BLOOM_UPDATE_NONE" },
{ 1, "BLOOM_UPDATE_ALL" },
{ 2, "BLOOM_UPDATE_P2PUBKEY_ONLY" },
{ 0, NULL }
};
/*
* Minimum bitcoin identification header.
* - Magic - 4 bytes
* - Command - 12 bytes
* - Payload length - 4 bytes
* - Checksum - 4 bytes
*/
#define BITCOIN_HEADER_LENGTH 4+12+4+4
void proto_register_bitcoin(void);
void proto_reg_handoff_bitcoin(void);
static dissector_handle_t bitcoin_handle;
static dissector_table_t bitcoin_command_table;
static header_field_info *hfi_bitcoin = NULL;
#define BITCOIN_HFI_INIT HFI_INIT(proto_bitcoin)
static header_field_info hfi_bitcoin_magic BITCOIN_HFI_INIT =
{ "Packet magic", "bitcoin.magic", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_command BITCOIN_HFI_INIT =
{ "Command name", "bitcoin.command", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_length BITCOIN_HFI_INIT =
{ "Payload Length", "bitcoin.length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_checksum BITCOIN_HFI_INIT =
{ "Payload checksum", "bitcoin.checksum", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
/* version message */
static header_field_info hfi_bitcoin_msg_version BITCOIN_HFI_INIT =
{ "Version message", "bitcoin.version", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_version BITCOIN_HFI_INIT =
{ "Protocol version", "bitcoin.version.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_services BITCOIN_HFI_INIT =
{ "Node services", "bitcoin.version.services", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_timestamp BITCOIN_HFI_INIT =
{ "Node timestamp", "bitcoin.version.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_addr_me BITCOIN_HFI_INIT =
{ "Address of emmitting node", "bitcoin.version.addr_me", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_addr_you BITCOIN_HFI_INIT =
{ "Address as receiving node", "bitcoin.version.addr_you", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_nonce BITCOIN_HFI_INIT =
{ "Random nonce", "bitcoin.version.nonce", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_user_agent BITCOIN_HFI_INIT =
{ "User agent", "bitcoin.version.user_agent", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_start_height BITCOIN_HFI_INIT =
{ "Block start height", "bitcoin.version.start_height", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_version_relay BITCOIN_HFI_INIT =
{ "Relay flag", "bitcoin.version.relay", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
/* addr message */
static header_field_info hfi_msg_addr_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.addr.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_addr_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.addr.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_addr_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.addr.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_addr_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.addr.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_addr BITCOIN_HFI_INIT =
{ "Address message", "bitcoin.addr", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_addr_address BITCOIN_HFI_INIT =
{ "Address", "bitcoin.addr.address", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_addr_timestamp BITCOIN_HFI_INIT =
{ "Address timestamp", "bitcoin.addr.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL };
/* inv message */
static header_field_info hfi_msg_inv_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.inv.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_inv_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.inv.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_inv_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.inv.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_inv_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.inv.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_inv BITCOIN_HFI_INIT =
{ "Inventory message", "bitcoin.inv", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_inv_type BITCOIN_HFI_INIT =
{ "Type", "bitcoin.inv.type", FT_UINT32, BASE_DEC, VALS(inv_types), 0x0, NULL, HFILL };
static header_field_info hfi_msg_inv_hash BITCOIN_HFI_INIT =
{ "Data hash", "bitcoin.inv.hash", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* getdata message */
static header_field_info hfi_bitcoin_msg_getdata BITCOIN_HFI_INIT =
{ "Getdata message", "bitcoin.getdata", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getdata.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getdata.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getdata.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getdata.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_type BITCOIN_HFI_INIT =
{ "Type", "bitcoin.getdata.type", FT_UINT32, BASE_DEC, VALS(inv_types), 0x0, NULL, HFILL };
static header_field_info hfi_msg_getdata_hash BITCOIN_HFI_INIT =
{ "Data hash", "bitcoin.getdata.hash", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* notfound message */
static header_field_info hfi_msg_notfound_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.notfound.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_notfound_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.notfound.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_notfound_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.notfound.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_notfound_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.notfound.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_notfound BITCOIN_HFI_INIT =
{ "Getdata message", "bitcoin.notfound", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_notfound_type BITCOIN_HFI_INIT =
{ "Type", "bitcoin.notfound.type", FT_UINT32, BASE_DEC, VALS(inv_types), 0x0, NULL, HFILL };
static header_field_info hfi_msg_notfound_hash BITCOIN_HFI_INIT =
{ "Data hash", "bitcoin.notfound.hash", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* getblocks message */
static header_field_info hfi_msg_getblocks_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getblocks.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getblocks_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getblocks.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getblocks_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getblocks.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getblocks_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getblocks.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_getblocks BITCOIN_HFI_INIT =
{ "Getdata message", "bitcoin.getblocks", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getblocks_start BITCOIN_HFI_INIT =
{ "Starting hash", "bitcoin.getblocks.hash_start", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getblocks_stop BITCOIN_HFI_INIT =
{ "Stopping hash", "bitcoin.getblocks.hash_stop", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* getheaders message */
static header_field_info hfi_msg_getheaders_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getheaders.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getheaders_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getheaders.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getheaders_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getheaders.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getheaders_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.getheaders.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
#if 0
static header_field_info hfi_msg_getheaders_version BITCOIN_HFI_INIT =
{ "Protocol version", "bitcoin.headers.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
#endif
static header_field_info hfi_bitcoin_msg_getheaders BITCOIN_HFI_INIT =
{ "Getheaders message", "bitcoin.getheaders", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getheaders_start BITCOIN_HFI_INIT =
{ "Starting hash", "bitcoin.getheaders.hash_start", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_getheaders_stop BITCOIN_HFI_INIT =
{ "Stopping hash", "bitcoin.getheaders.hash_stop", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* tx message */
static header_field_info hfi_msg_tx_in_count8 BITCOIN_HFI_INIT =
{ "Input Count", "bitcoin.tx.input_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_count16 BITCOIN_HFI_INIT =
{ "Input Count", "bitcoin.tx.input_count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_count32 BITCOIN_HFI_INIT =
{ "Input Count", "bitcoin.tx.input_count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_count64 BITCOIN_HFI_INIT =
{ "Input Count", "bitcoin.tx.input_count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_tx BITCOIN_HFI_INIT =
{ "Tx message", "bitcoin.tx", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_version BITCOIN_HFI_INIT =
{ "Transaction version", "bitcoin.tx.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_script8 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.in.script_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_script16 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.in.script_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_script32 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.in.script_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_script64 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.in.script_length64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in BITCOIN_HFI_INIT =
{ "Transaction input", "bitcoin.tx.in", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_prev_output BITCOIN_HFI_INIT =
{ "Previous output", "bitcoin.tx.in.prev_output", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_prev_outp_hash BITCOIN_HFI_INIT =
{ "Hash", "bitcoin.tx.in.prev_output.hash", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_prev_outp_index BITCOIN_HFI_INIT =
{ "Index", "bitcoin.tx.in.prev_output.index", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_sig_script BITCOIN_HFI_INIT =
{ "Signature script", "bitcoin.tx.in.sig_script", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_in_seq BITCOIN_HFI_INIT =
{ "Sequence", "bitcoin.tx.in.seq", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_count8 BITCOIN_HFI_INIT =
{ "Output Count", "bitcoin.tx.output_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_count16 BITCOIN_HFI_INIT =
{ "Output Count", "bitcoin.tx.output_count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_count32 BITCOIN_HFI_INIT =
{ "Output Count", "bitcoin.tx.output_count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_count64 BITCOIN_HFI_INIT =
{ "Output Count", "bitcoin.tx.output_count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out BITCOIN_HFI_INIT =
{ "Transaction output", "bitcoin.tx.out", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_value BITCOIN_HFI_INIT =
{ "Value", "bitcoin.tx.out.value", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_script8 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.out.script_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_script16 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.out.script_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_script32 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.out.script_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_script64 BITCOIN_HFI_INIT =
{ "Script Length", "bitcoin.tx.out.script_length64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_out_script BITCOIN_HFI_INIT =
{ "Script", "bitcoin.tx.out.script", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_tx_lock_time BITCOIN_HFI_INIT =
{ "Block lock time or block ID", "bitcoin.tx.lock_time", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
/* block message */
static header_field_info hfi_msg_block_transactions8 BITCOIN_HFI_INIT =
{ "Number of transactions", "bitcoin.block.num_transactions", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_transactions16 BITCOIN_HFI_INIT =
{ "Number of transactions", "bitcoin.block.num_transactions", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_transactions32 BITCOIN_HFI_INIT =
{ "Number of transactions", "bitcoin.block.num_transactions", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_transactions64 BITCOIN_HFI_INIT =
{ "Number of transactions", "bitcoin.block.num_transactions64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_bitcoin_msg_block BITCOIN_HFI_INIT =
{ "Block message", "bitcoin.block", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_version BITCOIN_HFI_INIT =
{ "Block version", "bitcoin.block.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_prev_block BITCOIN_HFI_INIT =
{ "Previous block", "bitcoin.block.prev_block", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_merkle_root BITCOIN_HFI_INIT =
{ "Merkle root", "bitcoin.block.merkle_root", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_time BITCOIN_HFI_INIT =
{ "Block timestamp", "bitcoin.block.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_bits BITCOIN_HFI_INIT =
{ "Bits", "bitcoin.block.bits", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_block_nonce BITCOIN_HFI_INIT =
{ "Nonce", "bitcoin.block.nonce", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
/* headers message */
static header_field_info hfi_bitcoin_msg_headers BITCOIN_HFI_INIT =
{ "Headers message", "bitcoin.headers", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_version BITCOIN_HFI_INIT =
{ "Block version", "bitcoin.headers.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_prev_block BITCOIN_HFI_INIT =
{ "Previous block", "bitcoin.headers.prev_block", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_merkle_root BITCOIN_HFI_INIT =
{ "Merkle root", "bitcoin.headers.merkle_root", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_time BITCOIN_HFI_INIT =
{ "Block timestamp", "bitcoin.headers.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_bits BITCOIN_HFI_INIT =
{ "Bits", "bitcoin.headers.bits", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_nonce BITCOIN_HFI_INIT =
{ "Nonce", "bitcoin.headers.nonce", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.headers.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.headers.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.headers.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_headers_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.headers.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
/* ping message */
static header_field_info hfi_bitcoin_msg_ping BITCOIN_HFI_INIT =
{ "Ping message", "bitcoin.ping", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_ping_nonce BITCOIN_HFI_INIT =
{ "Random nonce", "bitcoin.ping.nonce", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL };
/* pong message */
static header_field_info hfi_bitcoin_msg_pong BITCOIN_HFI_INIT =
{ "Pong message", "bitcoin.pong", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_pong_nonce BITCOIN_HFI_INIT =
{ "Random nonce", "bitcoin.pong.nonce", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL };
/* reject message */
static header_field_info hfi_bitcoin_msg_reject BITCOIN_HFI_INIT =
{ "Reject message", "bitcoin.reject", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_reject_message BITCOIN_HFI_INIT =
{ "Message rejected", "bitcoin.reject.message", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_reject_reason BITCOIN_HFI_INIT =
{ "Reason", "bitcoin.reject.reason", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_reject_ccode BITCOIN_HFI_INIT =
{ "CCode", "bitcoin.reject.ccode", FT_UINT8, BASE_HEX, VALS(reject_ccode), 0x0, NULL, HFILL };
static header_field_info hfi_msg_reject_data BITCOIN_HFI_INIT =
{ "Data", "bitcoin.reject.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* filterload message */
static header_field_info hfi_bitcoin_msg_filterload BITCOIN_HFI_INIT =
{ "Filterload message", "bitcoin.filterload", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_filterload_filter BITCOIN_HFI_INIT =
{ "Filter", "bitcoin.filterload.filter", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_filterload_nhashfunc BITCOIN_HFI_INIT =
{ "nHashFunc", "bitcoin.filterload.nhashfunc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_filterload_ntweak BITCOIN_HFI_INIT =
{ "nTweak", "bitcoin.filterload.ntweak", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_filterload_nflags BITCOIN_HFI_INIT =
{ "nFlags", "bitcoin.filterload.nflags", FT_UINT8, BASE_HEX, VALS(filterload_nflags), 0x0, NULL, HFILL };
/* filteradd message */
static header_field_info hfi_bitcoin_msg_filteradd BITCOIN_HFI_INIT =
{ "Filteradd message", "bitcoin.filteradd", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_filteradd_data BITCOIN_HFI_INIT =
{ "Data", "bitcoin.filteradd.data", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* merkleblock message */
static header_field_info hfi_bitcoin_msg_merkleblock BITCOIN_HFI_INIT =
{ "Merkleblock message", "bitcoin.merkleblock", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_transactions BITCOIN_HFI_INIT =
{ "Number of transactions", "bitcoin.merkleblock.num_transactions", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_version BITCOIN_HFI_INIT =
{ "Block version", "bitcoin.merkleblock.version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_prev_block BITCOIN_HFI_INIT =
{ "Previous block", "bitcoin.merkleblock.prev_block", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_merkle_root BITCOIN_HFI_INIT =
{ "Merkle root", "bitcoin.merkleblock.merkle_root", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_time BITCOIN_HFI_INIT =
{ "Block timestamp", "bitcoin.merkleblock.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_bits BITCOIN_HFI_INIT =
{ "Bits", "bitcoin.merkleblock.bits", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_nonce BITCOIN_HFI_INIT =
{ "Nonce", "bitcoin.merkleblock.nonce", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_hashes_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.merkleblock.hashes.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_hashes_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.merkleblock.hashes.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_hashes_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.merkleblock.hashes.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_hashes_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.merkleblock.hashes.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_hashes_hash BITCOIN_HFI_INIT =
{ "Hash", "bitcoin.merkleblock.hashes.hash", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_flags_size8 BITCOIN_HFI_INIT =
{ "Size", "bitcoin.merkleblock.flags.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_flags_size16 BITCOIN_HFI_INIT =
{ "Size", "bitcoin.merkleblock.flags.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_flags_size32 BITCOIN_HFI_INIT =
{ "Size", "bitcoin.merkleblock.flags.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_flags_size64 BITCOIN_HFI_INIT =
{ "Size", "bitcoin.merkleblock.flags.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_msg_merkleblock_flags_data BITCOIN_HFI_INIT =
{ "Data", "bitcoin.merkleblock.flags.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
/* services */
static header_field_info hfi_services_network BITCOIN_HFI_INIT =
{ "Network node", "bitcoin.services.network", FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x1, NULL, HFILL };
/* address */
static header_field_info hfi_address_services BITCOIN_HFI_INIT =
{ "Node services", "bitcoin.address.services", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_address_address BITCOIN_HFI_INIT =
{ "Node address", "bitcoin.address.address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_address_port BITCOIN_HFI_INIT =
{ "Node port", "bitcoin.address.port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
/* variable string */
static header_field_info hfi_string_value BITCOIN_HFI_INIT =
{ "String value", "bitcoin.string.value", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_string_varint_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.string.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_string_varint_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.string.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_string_varint_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.string.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_string_varint_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.string.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
/* variable data */
static header_field_info hfi_data_value BITCOIN_HFI_INIT =
{ "Data", "bitcoin.data.value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_data_varint_count8 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.data.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_data_varint_count16 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.data.count", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_data_varint_count32 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.data.count", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL };
static header_field_info hfi_data_varint_count64 BITCOIN_HFI_INIT =
{ "Count", "bitcoin.data.count64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL };
static gint ett_bitcoin = -1;
static gint ett_bitcoin_msg = -1;
static gint ett_services = -1;
static gint ett_address = -1;
static gint ett_string = -1;
static gint ett_addr_list = -1;
static gint ett_inv_list = -1;
static gint ett_getdata_list = -1;
static gint ett_notfound_list = -1;
static gint ett_getblocks_list = -1;
static gint ett_getheaders_list = -1;
static gint ett_tx_in_list = -1;
static gint ett_tx_in_outp = -1;
static gint ett_tx_out_list = -1;
static expert_field ei_bitcoin_command_unknown = EI_INIT;
static expert_field ei_bitcoin_script_len = EI_INIT;
static gboolean bitcoin_desegment = TRUE;
static guint
get_bitcoin_pdu_length(packet_info *pinfo _U_, tvbuff_t *tvb,
int offset, void *data _U_)
{
guint32 length;
length = BITCOIN_HEADER_LENGTH;
/* add payload length */
length += tvb_get_letohl(tvb, offset+16);
return length;
}
/**
* Create a services sub-tree for bit-by-bit display
*/
static proto_tree *
create_services_tree(tvbuff_t *tvb, proto_item *ti, guint32 offset)
{
proto_tree *tree;
guint64 services;
tree = proto_item_add_subtree(ti, ett_services);
/* start of services */
/* NOTE:
* - 2011-06-05
* Currently the boolean tree only supports a maximum of
* 32 bits - so we split services in two
*/
services = tvb_get_letoh64(tvb, offset);
/* service = NODE_NETWORK */
proto_tree_add_boolean(tree, &hfi_services_network, tvb, offset, 4, (guint32)services);
/* end of services */
return tree;
}
/**
* Create a sub-tree and fill it with a net_addr structure
*/
static proto_tree *
create_address_tree(tvbuff_t *tvb, proto_item *ti, guint32 offset)
{
proto_tree *tree;
tree = proto_item_add_subtree(ti, ett_address);
/* services */
ti = proto_tree_add_item(tree, &hfi_address_services, tvb, offset, 8, ENC_LITTLE_ENDIAN);
create_services_tree(tvb, ti, offset);
offset += 8;
/* IPv6 address */
proto_tree_add_item(tree, &hfi_address_address, tvb, offset, 16, ENC_NA);
offset += 16;
/* port */
proto_tree_add_item(tree, &hfi_address_port, tvb, offset, 2, ENC_BIG_ENDIAN);
return tree;
}
/**
* Extract a variable length integer from a tvbuff
*/
static void
get_varint(tvbuff_t *tvb, const gint offset, gint *length, guint64 *ret)
{
guint value;
/* Note: just throw an exception if not enough bytes are available in the tvbuff */
/* calculate variable length */
value = tvb_get_guint8(tvb, offset);
if (value < 0xfd)
{
*length = 1;
*ret = value;
return;
}
if (value == 0xfd)
{
*length = 3;
*ret = tvb_get_letohs(tvb, offset+1);
return;
}
if (value == 0xfe)
{
*length = 5;
*ret = tvb_get_letohl(tvb, offset+1);
return;
}
*length = 9;
*ret = tvb_get_letoh64(tvb, offset+1);
return;
}
static void add_varint_item(proto_tree *tree, tvbuff_t *tvb, const gint offset, gint length,
header_field_info *hfi8, header_field_info *hfi16, header_field_info *hfi32, header_field_info *hfi64)
{
switch (length)
{
case 1:
proto_tree_add_item(tree, hfi8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
break;
case 3:
proto_tree_add_item(tree, hfi16, tvb, offset+1, 2, ENC_LITTLE_ENDIAN);
break;
case 5:
proto_tree_add_item(tree, hfi32, tvb, offset+1, 4, ENC_LITTLE_ENDIAN);
break;
case 9:
proto_tree_add_item(tree, hfi64, tvb, offset+1, 8, ENC_LITTLE_ENDIAN);
break;
}
}
static proto_tree *
create_string_tree(proto_tree *tree, header_field_info* hfi, tvbuff_t *tvb, guint32* offset)
{
proto_tree *subtree;
proto_item *ti;
gint varint_length;
guint64 varint;
gint string_length;
/* First is the length of the following string as a varint */
get_varint(tvb, *offset, &varint_length, &varint);
string_length = (gint) varint;
ti = proto_tree_add_item(tree, hfi, tvb, *offset, varint_length + string_length, ENC_NA);
subtree = proto_item_add_subtree(ti, ett_string);
/* length */
add_varint_item(subtree, tvb, *offset, varint_length, &hfi_string_varint_count8,
&hfi_string_varint_count16, &hfi_string_varint_count32,
&hfi_string_varint_count64);
*offset += varint_length;
/* string */
proto_tree_add_item(subtree, &hfi_string_value, tvb, *offset, string_length,
ENC_ASCII|ENC_NA);
*offset += string_length;
return subtree;
}
static proto_tree *
create_data_tree(proto_tree *tree, header_field_info* hfi, tvbuff_t *tvb, guint32* offset)
{
proto_tree *subtree;
proto_item *ti;
gint varint_length;
guint64 varint;
gint data_length;
/* First is the length of the following string as a varint */
get_varint(tvb, *offset, &varint_length, &varint);
data_length = (gint) varint;
ti = proto_tree_add_item(tree, hfi, tvb, *offset, varint_length + data_length, ENC_NA);
subtree = proto_item_add_subtree(ti, ett_string);
/* length */
add_varint_item(subtree, tvb, *offset, varint_length, &hfi_data_varint_count8,
&hfi_data_varint_count16, &hfi_data_varint_count32,
&hfi_data_varint_count64);
*offset += varint_length;
/* data */
proto_tree_add_item(subtree, &hfi_data_value, tvb, *offset, data_length,
ENC_ASCII|ENC_NA);
*offset += data_length;
return subtree;
}
/* Note: A number of the following message handlers include code of the form:
* ...
* guint64 count;
* ...
* for (; count > 0; count--)
* {
* proto_tree_add_item9...);
* offset += ...;
* proto_tree_add_item9...);
* offset += ...;
* ...
* }
* ...
*
* Issue if 'count' is a very large number:
* If 'tree' is NULL, then the result will be effectively (but not really)
* an infinite loop. This is true because if 'tree' is NULL then
* proto_tree_add_item(tree, ...) is effectively a no-op and will not throw
* an exception.
* So: the loop should be executed only when 'tree' is defined so that the
* proto_ calls will throw an exception when the tvb is used up;
* This should only take a few-hundred loops at most.
* https://gitlab.com/wireshark/wireshark/-/issues/8312
*/
/**
* Handler for version messages
*/
static int
dissect_bitcoin_msg_version(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 version;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_version, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
version = tvb_get_letohl(tvb, offset);
proto_tree_add_item(tree, &hfi_msg_version_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
ti = proto_tree_add_item(tree, &hfi_msg_version_services, tvb, offset, 8, ENC_LITTLE_ENDIAN);
create_services_tree(tvb, ti, offset);
offset += 8;
proto_tree_add_item(tree, &hfi_msg_version_timestamp, tvb, offset, 8, ENC_TIME_SECS_NSECS|ENC_LITTLE_ENDIAN);
offset += 8;
ti = proto_tree_add_item(tree, &hfi_msg_version_addr_you, tvb, offset, 26, ENC_NA);
create_address_tree(tvb, ti, offset);
offset += 26;
if (version >= 106)
{
ti = proto_tree_add_item(tree, &hfi_msg_version_addr_me, tvb, offset, 26, ENC_NA);
create_address_tree(tvb, ti, offset);
offset += 26;
proto_tree_add_item(tree, &hfi_msg_version_nonce, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
create_string_tree(tree, &hfi_msg_version_user_agent, tvb, &offset);
}
if (version >= 209)
{
proto_tree_add_item(tree, &hfi_msg_version_start_height, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
}
if (version >= 70002)
{
proto_tree_add_item(tree, &hfi_msg_version_relay, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
}
return offset;
}
/**
* Handler for address messages
*/
static int
dissect_bitcoin_msg_addr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_addr, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_addr_count8, &hfi_msg_addr_count16,
&hfi_msg_addr_count32, &hfi_msg_addr_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree *subtree;
ti = proto_tree_add_item(tree, &hfi_msg_addr_address, tvb, offset, 30, ENC_NA);
subtree = create_address_tree(tvb, ti, offset+4);
proto_tree_add_item(subtree, &hfi_msg_addr_timestamp, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
offset += 26;
offset += 4;
}
return offset;
}
/**
* Handler for inventory messages
*/
static int
dissect_bitcoin_msg_inv(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_inv, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_inv_count8, &hfi_msg_inv_count16,
&hfi_msg_inv_count32, &hfi_msg_inv_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree *subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, 36, ett_inv_list, NULL, "Inventory vector");
proto_tree_add_item(subtree, &hfi_msg_inv_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_inv_hash, tvb, offset, 32, ENC_NA);
offset += 32;
}
return offset;
}
/**
* Handler for getdata messages
*/
static int
dissect_bitcoin_msg_getdata(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_getdata, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_getdata_count8, &hfi_msg_getdata_count16,
&hfi_msg_getdata_count32, &hfi_msg_getdata_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree *subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, 36, ett_getdata_list, NULL, "Inventory vector");
proto_tree_add_item(subtree, &hfi_msg_getdata_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_getdata_hash, tvb, offset, 32, ENC_NA);
offset += 32;
}
return offset;
}
/**
* Handler for notfound messages
*/
static int
dissect_bitcoin_msg_notfound(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_notfound, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_notfound_count8, &hfi_msg_notfound_count16,
&hfi_msg_notfound_count32, &hfi_msg_notfound_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree *subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, 36, ett_notfound_list, NULL, "Inventory vector");
proto_tree_add_item(subtree, &hfi_msg_notfound_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_notfound_hash, tvb, offset, 32, ENC_NA);
offset += 32;
}
return offset;
}
/**
* Handler for getblocks messages
*/
static int
dissect_bitcoin_msg_getblocks(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_getblocks, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
/* why the protcol version is sent here nobody knows */
proto_tree_add_item(tree, &hfi_msg_version_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_getblocks_count8, &hfi_msg_getblocks_count16,
&hfi_msg_getblocks_count32, &hfi_msg_getblocks_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree_add_item(tree, &hfi_msg_getblocks_start, tvb, offset, 32, ENC_NA);
offset += 32;
}
proto_tree_add_item(tree, &hfi_msg_getblocks_stop, tvb, offset, 32, ENC_NA);
offset += 32;
return offset;
}
/**
* Handler for getheaders messages
* UNTESTED
*/
static int
dissect_bitcoin_msg_getheaders(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_getheaders, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_headers_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_getheaders_count8, &hfi_msg_getheaders_count16,
&hfi_msg_getheaders_count32, &hfi_msg_getheaders_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree_add_item(tree, &hfi_msg_getheaders_start, tvb, offset, 32, ENC_NA);
offset += 32;
}
proto_tree_add_item(tree, &hfi_msg_getheaders_stop, tvb, offset, 32, ENC_NA);
offset += 32;
return offset;
}
/**
* Handler for tx message body
*/
static guint32
dissect_bitcoin_msg_tx_common(tvbuff_t *tvb, guint32 offset, packet_info *pinfo, proto_tree *tree, guint msgnum)
{
proto_item *rti;
gint count_length;
guint64 in_count;
guint64 out_count;
if (msgnum == 0) {
rti = proto_tree_add_item(tree, &hfi_bitcoin_msg_tx, tvb, offset, -1, ENC_NA);
} else {
rti = proto_tree_add_none_format(tree, &hfi_bitcoin_msg_tx, tvb, offset, -1, "Tx message [ %4d ]", msgnum);
}
tree = proto_item_add_subtree(rti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_tx_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* TxIn[] */
get_varint(tvb, offset, &count_length, &in_count);
add_varint_item(tree, tvb, offset, count_length, &hfi_msg_tx_in_count8, &hfi_msg_tx_in_count16,
&hfi_msg_tx_in_count32, &hfi_msg_tx_in_count64);
offset += count_length;
/* TxIn
* [36] previous_output outpoint
* [1+] script length var_int
* [ ?] signature script uchar[]
* [ 4] sequence uint32_t
*
* outpoint (aka previous output)
* [32] hash char[32
* [ 4] index uint32_t
*
*/
for (; in_count > 0; in_count--)
{
proto_tree *subtree;
proto_tree *prevtree;
proto_item *ti;
proto_item *pti;
guint64 script_length;
guint32 scr_len_offset;
scr_len_offset = offset+36;
get_varint(tvb, scr_len_offset, &count_length, &script_length);
/* A funny script_length won't cause an exception since the field type is FT_NONE */
ti = proto_tree_add_item(tree, &hfi_msg_tx_in, tvb, offset,
36 + count_length + (guint)script_length + 4, ENC_NA);
subtree = proto_item_add_subtree(ti, ett_tx_in_list);
/* previous output */
pti = proto_tree_add_item(subtree, &hfi_msg_tx_in_prev_output, tvb, offset, 36, ENC_NA);
prevtree = proto_item_add_subtree(pti, ett_tx_in_outp);
proto_tree_add_item(prevtree, &hfi_msg_tx_in_prev_outp_hash, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(prevtree, &hfi_msg_tx_in_prev_outp_index, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* end previous output */
add_varint_item(subtree, tvb, offset, count_length, &hfi_msg_tx_in_script8, &hfi_msg_tx_in_script16,
&hfi_msg_tx_in_script32, &hfi_msg_tx_in_script64);
offset += count_length;
if ((offset + script_length) > G_MAXINT) {
proto_tree_add_expert(tree, pinfo, &ei_bitcoin_script_len,
tvb, scr_len_offset, count_length);
return G_MAXINT;
}
proto_tree_add_item(subtree, &hfi_msg_tx_in_sig_script, tvb, offset, (guint)script_length, ENC_NA);
offset += (guint)script_length;
proto_tree_add_item(subtree, &hfi_msg_tx_in_seq, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
}
/* TxOut[] */
get_varint(tvb, offset, &count_length, &out_count);
add_varint_item(tree, tvb, offset, count_length, &hfi_msg_tx_out_count8, &hfi_msg_tx_out_count16,
&hfi_msg_tx_out_count32, &hfi_msg_tx_out_count64);
offset += count_length;
/* TxOut
* [ 8] value
* [1+] script length [var_int]
* [ ?] script
*/
for (; out_count > 0; out_count--)
{
proto_item *ti;
proto_tree *subtree;
guint64 script_length;
guint32 scr_len_offset;
scr_len_offset = offset+8;
get_varint(tvb, scr_len_offset, &count_length, &script_length);
/* A funny script_length won't cause an exception since the field type is FT_NONE */
ti = proto_tree_add_item(tree, &hfi_msg_tx_out, tvb, offset,
8 + count_length + (guint)script_length , ENC_NA);
subtree = proto_item_add_subtree(ti, ett_tx_out_list);
proto_tree_add_item(subtree, &hfi_msg_tx_out_value, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
add_varint_item(subtree, tvb, offset, count_length, &hfi_msg_tx_out_script8, &hfi_msg_tx_out_script16,
&hfi_msg_tx_out_script32, &hfi_msg_tx_out_script64);
offset += count_length;
if ((offset + script_length) > G_MAXINT) {
proto_tree_add_expert(tree, pinfo, &ei_bitcoin_script_len,
tvb, scr_len_offset, count_length);
return G_MAXINT;
}
proto_tree_add_item(subtree, &hfi_msg_tx_out_script, tvb, offset, (guint)script_length, ENC_NA);
offset += (guint)script_length;
}
proto_tree_add_item(tree, &hfi_msg_tx_lock_time, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* needed for block nesting */
proto_item_set_len(rti, offset);
return offset;
}
/**
* Handler for tx message
*/
static int
dissect_bitcoin_msg_tx(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return dissect_bitcoin_msg_tx_common(tvb, 0, pinfo, tree, 0);
}
/**
* Handler for block messages
*/
static int
dissect_bitcoin_msg_block(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint msgnum;
guint32 offset = 0;
/* Block
* [ 4] version uint32_t
* [32] prev_block char[32]
* [32] merkle_root char[32]
* [ 4] timestamp uint32_t A unix timestamp ... (Currently limited to dates before the year 2106!)
* [ 4] bits uint32_t
* [ 4] nonce uint32_t
* [ ?] txn_count var_int
* [ ?] txns tx[] Block transactions, in format of "tx" command
*/
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_block, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_block_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_block_prev_block, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(tree, &hfi_msg_block_merkle_root, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(tree, &hfi_msg_block_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_block_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_block_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_block_transactions8, &hfi_msg_block_transactions16,
&hfi_msg_block_transactions32, &hfi_msg_block_transactions64);
offset += length;
msgnum = 0;
for (; count>0 && offset<G_MAXINT; count--)
{
msgnum += 1;
offset = dissect_bitcoin_msg_tx_common(tvb, offset, pinfo, tree, msgnum);
}
return offset;
}
/**
* Handler for headers messages
*/
static int
dissect_bitcoin_msg_headers(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_headers, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
get_varint(tvb, offset, &length, &count);
add_varint_item(tree, tvb, offset, length, &hfi_msg_headers_count8, &hfi_msg_headers_count16,
&hfi_msg_headers_count32, &hfi_msg_headers_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree *subtree;
guint64 txcount;
subtree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_bitcoin_msg, NULL, "Header");
proto_tree_add_item(subtree, &hfi_msg_headers_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_headers_prev_block, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(subtree, &hfi_msg_headers_merkle_root, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(subtree, &hfi_msg_headers_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_headers_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(subtree, &hfi_msg_headers_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
get_varint(tvb, offset, &length, &txcount);
add_varint_item(subtree, tvb, offset, length, &hfi_msg_headers_count8, &hfi_msg_headers_count16,
&hfi_msg_headers_count32, &hfi_msg_headers_count64);
offset += length;
proto_item_set_len(subtree, 80 + length);
}
return offset;
}
/**
* Handler for ping messages
*/
static int
dissect_bitcoin_msg_ping(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_ping, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_ping_nonce, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
return offset;
}
/**
* Handler for pong messages
*/
static int
dissect_bitcoin_msg_pong(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_pong, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_pong_nonce, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
return offset;
}
/**
* Handler for reject messages
*/
static int
dissect_bitcoin_msg_reject(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_reject, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
create_string_tree(tree, &hfi_msg_reject_message, tvb, &offset);
proto_tree_add_item(tree, &hfi_msg_reject_ccode, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
create_string_tree(tree, &hfi_msg_reject_reason, tvb, &offset);
if ((tvb_reported_length(tvb) - offset) > 0)
{
proto_tree_add_item(tree, &hfi_msg_reject_data, tvb, offset, tvb_reported_length(tvb) - offset, ENC_NA);
}
return offset;
}
/**
* Handler for filterload messages
*/
static int
dissect_bitcoin_msg_filterload(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_filterload, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
create_data_tree(tree, &hfi_msg_filterload_filter, tvb, &offset);
proto_tree_add_item(tree, &hfi_msg_filterload_nhashfunc, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_filterload_ntweak, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_filterload_nflags, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
return offset;
}
/**
* Handler for filteradd messages
*/
static int
dissect_bitcoin_msg_filteradd(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_filteradd, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
create_data_tree(tree, &hfi_msg_filteradd_data, tvb, &offset);
return offset;
}
/**
* Handler for merkleblock messages
*/
static int
dissect_bitcoin_msg_merkleblock(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_item *ti;
proto_item *subtree;
gint length;
guint64 count;
guint32 offset = 0;
ti = proto_tree_add_item(tree, &hfi_bitcoin_msg_merkleblock, tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
proto_tree_add_item(tree, &hfi_msg_merkleblock_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_merkleblock_prev_block, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(tree, &hfi_msg_merkleblock_merkle_root, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(tree, &hfi_msg_merkleblock_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_merkleblock_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_merkleblock_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(tree, &hfi_msg_merkleblock_transactions, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
get_varint(tvb, offset, &length, &count);
subtree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_bitcoin_msg, NULL, "Hashes");
add_varint_item(subtree, tvb, offset, length, &hfi_msg_merkleblock_hashes_count8, &hfi_msg_merkleblock_hashes_count16,
&hfi_msg_merkleblock_hashes_count32, &hfi_msg_merkleblock_hashes_count64);
offset += length;
for (; count > 0; count--)
{
proto_tree_add_item(subtree, &hfi_msg_merkleblock_hashes_hash, tvb, offset, 32, ENC_NA);
offset += 32;
}
get_varint(tvb, offset, &length, &count);
subtree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_bitcoin_msg, NULL, "Flags");
add_varint_item(subtree, tvb, offset, length, &hfi_msg_merkleblock_flags_size8, &hfi_msg_merkleblock_flags_size16,
&hfi_msg_merkleblock_flags_size32, &hfi_msg_merkleblock_flags_size64);
offset += length;
/* The cast to guint is save because bitcoin messages are always smaller than 0x02000000 bytes. */
proto_tree_add_item(subtree, &hfi_msg_merkleblock_flags_data, tvb, offset, (guint)count, ENC_ASCII|ENC_NA);
offset += (guint32)count;
return offset;
}
/**
* Handler for unimplemented or payload-less messages
*/
static int
dissect_bitcoin_msg_empty(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_)
{
return tvb_captured_length(tvb);
}
static int dissect_bitcoin_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti;
guint32 offset = 0;
const guint8* command;
dissector_handle_t command_handle;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Bitcoin");
ti = proto_tree_add_item(tree, hfi_bitcoin, tvb, 0, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_bitcoin);
/* add basic protocol data */
proto_tree_add_item(tree, &hfi_bitcoin_magic, tvb, 0, 4, ENC_BIG_ENDIAN);
proto_tree_add_item_ret_string(tree, &hfi_bitcoin_command, tvb, 4, 12, ENC_ASCII|ENC_NA, wmem_packet_scope(), &command);
proto_tree_add_item(tree, &hfi_bitcoin_length, tvb, 16, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_checksum(tree, tvb, 20, &hfi_bitcoin_checksum, -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS);
offset = 24;
command_handle = dissector_get_string_handle(bitcoin_command_table, command);
if (command_handle != NULL)
{
/* handle command specific message part */
tvbuff_t *tvb_sub;
col_append_sep_str(pinfo->cinfo, COL_INFO, ", ", command);
tvb_sub = tvb_new_subset_remaining(tvb, offset);
call_dissector(command_handle, tvb_sub, pinfo, tree);
}
else
{
/* no handler found */
col_append_sep_str(pinfo->cinfo, COL_INFO, ", ", "[unknown command]");
expert_add_info(pinfo, ti, &ei_bitcoin_command_unknown);
}
return tvb_reported_length(tvb);
}
static int
dissect_bitcoin(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
col_clear(pinfo->cinfo, COL_INFO);
tcp_dissect_pdus(tvb, pinfo, tree, bitcoin_desegment, BITCOIN_HEADER_LENGTH,
get_bitcoin_pdu_length, dissect_bitcoin_tcp_pdu, data);
return tvb_reported_length(tvb);
}
static gboolean
dissect_bitcoin_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
guint32 magic_number;
conversation_t *conversation;
if (tvb_captured_length(tvb) < 4)
return FALSE;
magic_number = tvb_get_letohl(tvb, 0);
if ((magic_number != BITCOIN_MAIN_MAGIC_NUMBER) &&
(magic_number != BITCOIN_TESTNET_MAGIC_NUMBER) &&
(magic_number != BITCOIN_TESTNET3_MAGIC_NUMBER))
return FALSE;
/* Ok: This connection should always use the bitcoin dissector */
conversation = find_or_create_conversation(pinfo);
conversation_set_dissector(conversation, bitcoin_handle);
dissect_bitcoin(tvb, pinfo, tree, data);
return TRUE;
}
void
proto_register_bitcoin(void)
{
#ifndef HAVE_HFI_SECTION_INIT
static header_field_info *hfi[] = {
&hfi_bitcoin_magic,
&hfi_bitcoin_command,
&hfi_bitcoin_length,
&hfi_bitcoin_checksum,
/* version message */
&hfi_bitcoin_msg_version,
&hfi_msg_version_version,
&hfi_msg_version_services,
&hfi_msg_version_addr_me,
&hfi_msg_version_addr_you,
&hfi_msg_version_timestamp,
&hfi_msg_version_nonce,
&hfi_msg_version_user_agent,
&hfi_msg_version_start_height,
&hfi_msg_version_relay,
/* addr message */
&hfi_msg_addr_count8,
&hfi_msg_addr_count16,
&hfi_msg_addr_count32,
&hfi_msg_addr_count64,
&hfi_bitcoin_msg_addr,
&hfi_msg_addr_address,
&hfi_msg_addr_timestamp,
/* inv message */
&hfi_msg_inv_count8,
&hfi_msg_inv_count16,
&hfi_msg_inv_count32,
&hfi_msg_inv_count64,
&hfi_bitcoin_msg_inv,
&hfi_msg_inv_type,
&hfi_msg_inv_hash,
/* getdata message */
&hfi_msg_getdata_count8,
&hfi_msg_getdata_count16,
&hfi_msg_getdata_count32,
&hfi_msg_getdata_count64,
&hfi_bitcoin_msg_getdata,
&hfi_msg_getdata_type,
&hfi_msg_getdata_hash,
/* notfound message */
&hfi_msg_notfound_count8,
&hfi_msg_notfound_count16,
&hfi_msg_notfound_count32,
&hfi_msg_notfound_count64,
&hfi_bitcoin_msg_notfound,
&hfi_msg_notfound_type,
&hfi_msg_notfound_hash,
/* getblocks message */
&hfi_msg_getblocks_count8,
&hfi_msg_getblocks_count16,
&hfi_msg_getblocks_count32,
&hfi_msg_getblocks_count64,
&hfi_bitcoin_msg_getblocks,
&hfi_msg_getblocks_start,
&hfi_msg_getblocks_stop,
/* getheaders message */
&hfi_msg_getheaders_count8,
&hfi_msg_getheaders_count16,
&hfi_msg_getheaders_count32,
&hfi_msg_getheaders_count64,
&hfi_bitcoin_msg_getheaders,
#if 0
&hfi_msg_getheaders_version,
#endif
&hfi_msg_getheaders_start,
&hfi_msg_getheaders_stop,
/* tx message */
&hfi_bitcoin_msg_tx,
&hfi_msg_tx_version,
/* tx message - input */
&hfi_msg_tx_in_count8,
&hfi_msg_tx_in_count16,
&hfi_msg_tx_in_count32,
&hfi_msg_tx_in_count64,
&hfi_msg_tx_in,
&hfi_msg_tx_in_prev_output,
&hfi_msg_tx_in_prev_outp_hash,
&hfi_msg_tx_in_prev_outp_index,
&hfi_msg_tx_in_script8,
&hfi_msg_tx_in_script16,
&hfi_msg_tx_in_script32,
&hfi_msg_tx_in_script64,
&hfi_msg_tx_in_sig_script,
&hfi_msg_tx_in_seq,
/* tx message - output */
&hfi_msg_tx_out_count8,
&hfi_msg_tx_out_count16,
&hfi_msg_tx_out_count32,
&hfi_msg_tx_out_count64,
&hfi_msg_tx_out,
&hfi_msg_tx_out_value,
&hfi_msg_tx_out_script8,
&hfi_msg_tx_out_script16,
&hfi_msg_tx_out_script32,
&hfi_msg_tx_out_script64,
&hfi_msg_tx_out_script,
&hfi_msg_tx_lock_time,
/* block message */
&hfi_msg_block_transactions8,
&hfi_msg_block_transactions16,
&hfi_msg_block_transactions32,
&hfi_msg_block_transactions64,
&hfi_bitcoin_msg_block,
&hfi_msg_block_version,
&hfi_msg_block_prev_block,
&hfi_msg_block_merkle_root,
&hfi_msg_block_time,
&hfi_msg_block_bits,
&hfi_msg_block_nonce,
/* headers message */
&hfi_bitcoin_msg_headers,
&hfi_msg_headers_count8,
&hfi_msg_headers_count16,
&hfi_msg_headers_count32,
&hfi_msg_headers_count64,
&hfi_msg_headers_version,
&hfi_msg_headers_prev_block,
&hfi_msg_headers_merkle_root,
&hfi_msg_headers_time,
&hfi_msg_headers_bits,
&hfi_msg_headers_nonce,
/* ping message */
&hfi_bitcoin_msg_ping,
&hfi_msg_ping_nonce,
/* pong message */
&hfi_bitcoin_msg_pong,
&hfi_msg_pong_nonce,
/* reject message */
&hfi_bitcoin_msg_reject,
&hfi_msg_reject_ccode,
&hfi_msg_reject_message,
&hfi_msg_reject_reason,
&hfi_msg_reject_data,
/* filterload message */
&hfi_bitcoin_msg_filterload,
&hfi_msg_filterload_filter,
&hfi_msg_filterload_nflags,
&hfi_msg_filterload_nhashfunc,
&hfi_msg_filterload_ntweak,
/* filteradd message */
&hfi_bitcoin_msg_filteradd,
&hfi_msg_filteradd_data,
/* merkleblock message */
&hfi_bitcoin_msg_merkleblock,
&hfi_msg_merkleblock_transactions,
&hfi_msg_merkleblock_version,
&hfi_msg_merkleblock_prev_block,
&hfi_msg_merkleblock_merkle_root,
&hfi_msg_merkleblock_time,
&hfi_msg_merkleblock_bits,
&hfi_msg_merkleblock_nonce,
&hfi_msg_merkleblock_flags_data,
&hfi_msg_merkleblock_flags_size8,
&hfi_msg_merkleblock_flags_size16,
&hfi_msg_merkleblock_flags_size32,
&hfi_msg_merkleblock_flags_size64,
&hfi_msg_merkleblock_hashes_count8,
&hfi_msg_merkleblock_hashes_count16,
&hfi_msg_merkleblock_hashes_count32,
&hfi_msg_merkleblock_hashes_count64,
&hfi_msg_merkleblock_hashes_hash,
/* services */
&hfi_services_network,
/* address */
&hfi_address_services,
&hfi_address_address,
&hfi_address_port,
/* variable string */
&hfi_string_value,
&hfi_string_varint_count8,
&hfi_string_varint_count16,
&hfi_string_varint_count32,
&hfi_string_varint_count64,
/* variable data */
&hfi_data_value,
&hfi_data_varint_count8,
&hfi_data_varint_count16,
&hfi_data_varint_count32,
&hfi_data_varint_count64,
};
#endif
static gint *ett[] = {
&ett_bitcoin,
&ett_bitcoin_msg,
&ett_services,
&ett_address,
&ett_string,
&ett_addr_list,
&ett_inv_list,
&ett_getdata_list,
&ett_notfound_list,
&ett_getblocks_list,
&ett_getheaders_list,
&ett_tx_in_list,
&ett_tx_in_outp,
&ett_tx_out_list,
};
static ei_register_info ei[] = {
{ &ei_bitcoin_command_unknown, { "bitcoin.command.unknown", PI_PROTOCOL, PI_WARN, "Unknown command", EXPFILL }},
{ &ei_bitcoin_script_len, { "bitcoin.script_length.invalid", PI_MALFORMED, PI_ERROR, "script_len too large", EXPFILL }}
};
module_t *bitcoin_module;
expert_module_t* expert_bitcoin;
int proto_bitcoin;
proto_bitcoin = proto_register_protocol("Bitcoin protocol", "Bitcoin", "bitcoin");
hfi_bitcoin = proto_registrar_get_nth(proto_bitcoin);
proto_register_subtree_array(ett, array_length(ett));
proto_register_fields(proto_bitcoin, hfi, array_length(hfi));
expert_bitcoin = expert_register_protocol(proto_bitcoin);
expert_register_field_array(expert_bitcoin, ei, array_length(ei));
bitcoin_command_table = register_dissector_table("bitcoin.command", "Bitcoin Command", proto_bitcoin, FT_STRING, BASE_NONE);
bitcoin_handle = register_dissector("bitcoin", dissect_bitcoin, proto_bitcoin);
bitcoin_module = prefs_register_protocol(proto_bitcoin, NULL);
prefs_register_bool_preference(bitcoin_module, "desegment",
"Desegment all Bitcoin messages spanning multiple TCP segments",
"Whether the Bitcoin dissector should desegment all messages"
" spanning multiple TCP segments",
&bitcoin_desegment);
}
void
proto_reg_handoff_bitcoin(void)
{
dissector_handle_t command_handle;
dissector_add_for_decode_as_with_preference("tcp.port", bitcoin_handle);
heur_dissector_add( "tcp", dissect_bitcoin_heur, "Bitcoin over TCP", "bitcoin_tcp", hfi_bitcoin->id, HEURISTIC_ENABLE);
/* Register all of the commands */
command_handle = create_dissector_handle( dissect_bitcoin_msg_version, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "version", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_addr, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "addr", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_inv, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "inv", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_getdata, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "getdata", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_getblocks, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "getblocks", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_getheaders, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "getheaders", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_tx, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "tx", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_block, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "block", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_ping, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "ping", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_pong, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "pong", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_notfound, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "notfound", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_reject, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "reject", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_headers, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "headers", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_filterload, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "filterload", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_filteradd, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "filteradd", command_handle);
command_handle = create_dissector_handle( dissect_bitcoin_msg_merkleblock, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "merkleblock", command_handle);
/* messages with no payload */
command_handle = create_dissector_handle( dissect_bitcoin_msg_empty, hfi_bitcoin->id );
dissector_add_string("bitcoin.command", "verack", command_handle);
dissector_add_string("bitcoin.command", "getaddr", command_handle);
dissector_add_string("bitcoin.command", "mempool", command_handle);
dissector_add_string("bitcoin.command", "filterclear", command_handle);
/* messages not implemented */
/* command_handle = create_dissector_handle( dissect_bitcoin_msg_empty, hfi_bitcoin->id ); */
dissector_add_string("bitcoin.command", "checkorder", command_handle);
dissector_add_string("bitcoin.command", "submitorder", command_handle);
dissector_add_string("bitcoin.command", "reply", command_handle);
dissector_add_string("bitcoin.command", "alert", command_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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