8efad466c4
Do not require a useless ENC_NA parameter for string encodings.
FT_STRING and FT_STRINGZ types don't have any ndianness.
Follow-up to 6ec429622c
.
2163 lines
66 KiB
C
2163 lines
66 KiB
C
/* packet-bitcoin.c
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* Routines for bitcoin dissection
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* Copyright 2011, Christian Svensson <blue@cmd.nu>
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* Bitcoin address: 15Y2EN5mLnsTt3CZBfgpnZR5SeLwu7WEHz
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*
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* See https://en.bitcoin.it/wiki/Protocol_specification
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*
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* Updated 2015, Laurenz Kamp <laurenz.kamp@gmx.de>
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* Changes made:
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* Updated dissectors:
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* -> ping: ping packets now have a nonce.
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* -> version: If version >= 70002, version messages have a relay flag.
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* -> Messages with no payload: Added mempool and filterclear messages.
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* Added dissectors:
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* -> pong message
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* -> notfound message
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* -> reject message
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* -> filterload
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* -> filteradd
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* -> merkleblock
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* -> headers
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/exceptions.h>
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#include <epan/prefs.h>
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#include <epan/expert.h>
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#include "packet-tcp.h"
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#define BITCOIN_MAIN_MAGIC_NUMBER 0xD9B4BEF9
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#define BITCOIN_TESTNET_MAGIC_NUMBER 0xDAB5BFFA
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#define BITCOIN_TESTNET3_MAGIC_NUMBER 0x0709110B
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static const value_string inv_types[] =
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{
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{ 0, "ERROR" },
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{ 1, "MSG_TX" },
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{ 2, "MSG_BLOCK" },
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{ 0, NULL }
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};
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static const value_string reject_ccode[] =
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{
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{ 0x01, "REJECT_MALFORMED" },
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{ 0x10, "REJECT_INVALID" },
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{ 0x11, "REJECT_OBSOLETE" },
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{ 0x12, "REJECT_DUPLICATE" },
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{ 0x40, "REJECT_NONSTANDARD" },
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{ 0x41, "REJECT_DUST" },
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{ 0x42, "REJECT_INSUFFICIENTFEE" },
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{ 0x43, "REJECT_CHECKPOINT" },
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{ 0, NULL }
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};
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static const value_string filterload_nflags[] =
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{
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{ 0, "BLOOM_UPDATE_NONE" },
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{ 1, "BLOOM_UPDATE_ALL" },
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{ 2, "BLOOM_UPDATE_P2PUBKEY_ONLY" },
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{ 0, NULL }
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};
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/*
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* Minimum bitcoin identification header.
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* - Magic - 4 bytes
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* - Command - 12 bytes
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* - Payload length - 4 bytes
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* - Checksum - 4 bytes
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*/
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#define BITCOIN_HEADER_LENGTH 4+12+4+4
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void proto_register_bitcoin(void);
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void proto_reg_handoff_bitcoin(void);
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static dissector_handle_t bitcoin_handle;
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static dissector_table_t bitcoin_command_table;
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static int proto_bitcoin = -1;
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static int hf_address_address = -1;
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static int hf_address_port = -1;
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static int hf_address_services = -1;
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static int hf_bitcoin_checksum = -1;
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static int hf_bitcoin_command = -1;
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static int hf_bitcoin_length = -1;
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static int hf_bitcoin_magic = -1;
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static int hf_bitcoin_msg_addr = -1;
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static int hf_bitcoin_msg_block = -1;
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static int hf_bitcoin_msg_filteradd = -1;
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static int hf_bitcoin_msg_filterload = -1;
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static int hf_bitcoin_msg_getblocks = -1;
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static int hf_bitcoin_msg_getdata = -1;
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static int hf_bitcoin_msg_getheaders = -1;
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static int hf_bitcoin_msg_headers = -1;
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static int hf_bitcoin_msg_inv = -1;
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static int hf_bitcoin_msg_merkleblock = -1;
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static int hf_bitcoin_msg_notfound = -1;
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static int hf_bitcoin_msg_ping = -1;
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static int hf_bitcoin_msg_pong = -1;
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static int hf_bitcoin_msg_reject = -1;
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static int hf_bitcoin_msg_tx = -1;
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static int hf_bitcoin_msg_version = -1;
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static int hf_data_value = -1;
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static int hf_data_varint_count16 = -1;
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static int hf_data_varint_count32 = -1;
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static int hf_data_varint_count64 = -1;
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static int hf_data_varint_count8 = -1;
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static int hf_msg_addr_address = -1;
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static int hf_msg_addr_count16 = -1;
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static int hf_msg_addr_count32 = -1;
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static int hf_msg_addr_count64 = -1;
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static int hf_msg_addr_count8 = -1;
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static int hf_msg_addr_timestamp = -1;
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static int hf_msg_block_bits = -1;
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static int hf_msg_block_merkle_root = -1;
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static int hf_msg_block_nonce = -1;
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static int hf_msg_block_prev_block = -1;
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static int hf_msg_block_time = -1;
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static int hf_msg_block_transactions16 = -1;
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static int hf_msg_block_transactions32 = -1;
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static int hf_msg_block_transactions64 = -1;
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static int hf_msg_block_transactions8 = -1;
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static int hf_msg_block_version = -1;
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static int hf_msg_filteradd_data = -1;
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static int hf_msg_filterload_filter = -1;
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static int hf_msg_filterload_nflags = -1;
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static int hf_msg_filterload_nhashfunc = -1;
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static int hf_msg_filterload_ntweak = -1;
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static int hf_msg_getblocks_count16 = -1;
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static int hf_msg_getblocks_count32 = -1;
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static int hf_msg_getblocks_count64 = -1;
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static int hf_msg_getblocks_count8 = -1;
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static int hf_msg_getblocks_start = -1;
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static int hf_msg_getblocks_stop = -1;
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static int hf_msg_getdata_count16 = -1;
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static int hf_msg_getdata_count32 = -1;
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static int hf_msg_getdata_count64 = -1;
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static int hf_msg_getdata_count8 = -1;
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static int hf_msg_getdata_hash = -1;
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static int hf_msg_getdata_type = -1;
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static int hf_msg_getheaders_count16 = -1;
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static int hf_msg_getheaders_count32 = -1;
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static int hf_msg_getheaders_count64 = -1;
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static int hf_msg_getheaders_count8 = -1;
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static int hf_msg_getheaders_start = -1;
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static int hf_msg_getheaders_stop = -1;
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static int hf_msg_getheaders_version = -1;
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static int hf_msg_headers_bits = -1;
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static int hf_msg_headers_count16 = -1;
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static int hf_msg_headers_count32 = -1;
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static int hf_msg_headers_count64 = -1;
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static int hf_msg_headers_count8 = -1;
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static int hf_msg_headers_merkle_root = -1;
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static int hf_msg_headers_nonce = -1;
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static int hf_msg_headers_prev_block = -1;
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static int hf_msg_headers_time = -1;
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static int hf_msg_headers_version = -1;
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static int hf_msg_inv_count16 = -1;
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static int hf_msg_inv_count32 = -1;
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static int hf_msg_inv_count64 = -1;
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static int hf_msg_inv_count8 = -1;
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static int hf_msg_inv_hash = -1;
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static int hf_msg_inv_type = -1;
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static int hf_msg_merkleblock_bits = -1;
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static int hf_msg_merkleblock_flags_data = -1;
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static int hf_msg_merkleblock_flags_size16 = -1;
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static int hf_msg_merkleblock_flags_size32 = -1;
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static int hf_msg_merkleblock_flags_size64 = -1;
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static int hf_msg_merkleblock_flags_size8 = -1;
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static int hf_msg_merkleblock_hashes_count16 = -1;
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static int hf_msg_merkleblock_hashes_count32 = -1;
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static int hf_msg_merkleblock_hashes_count64 = -1;
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static int hf_msg_merkleblock_hashes_count8 = -1;
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static int hf_msg_merkleblock_hashes_hash = -1;
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static int hf_msg_merkleblock_merkle_root = -1;
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static int hf_msg_merkleblock_nonce = -1;
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static int hf_msg_merkleblock_prev_block = -1;
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static int hf_msg_merkleblock_time = -1;
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static int hf_msg_merkleblock_transactions = -1;
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static int hf_msg_merkleblock_version = -1;
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static int hf_msg_notfound_count16 = -1;
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static int hf_msg_notfound_count32 = -1;
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static int hf_msg_notfound_count64 = -1;
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static int hf_msg_notfound_count8 = -1;
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static int hf_msg_notfound_hash = -1;
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static int hf_msg_notfound_type = -1;
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static int hf_msg_ping_nonce = -1;
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static int hf_msg_pong_nonce = -1;
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static int hf_msg_reject_ccode = -1;
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static int hf_msg_reject_data = -1;
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static int hf_msg_reject_message = -1;
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static int hf_msg_reject_reason = -1;
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static int hf_msg_tx_in = -1;
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static int hf_msg_tx_in_count16 = -1;
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static int hf_msg_tx_in_count32 = -1;
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static int hf_msg_tx_in_count64 = -1;
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static int hf_msg_tx_in_count8 = -1;
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static int hf_msg_tx_in_prev_outp_hash = -1;
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static int hf_msg_tx_in_prev_outp_index = -1;
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static int hf_msg_tx_in_prev_output = -1;
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static int hf_msg_tx_in_script16 = -1;
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static int hf_msg_tx_in_script32 = -1;
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static int hf_msg_tx_in_script64 = -1;
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static int hf_msg_tx_in_script8 = -1;
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static int hf_msg_tx_in_seq = -1;
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static int hf_msg_tx_in_sig_script = -1;
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static int hf_msg_tx_lock_time = -1;
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static int hf_msg_tx_out = -1;
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static int hf_msg_tx_out_count16 = -1;
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static int hf_msg_tx_out_count32 = -1;
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static int hf_msg_tx_out_count64 = -1;
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static int hf_msg_tx_out_count8 = -1;
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static int hf_msg_tx_out_script = -1;
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static int hf_msg_tx_out_script16 = -1;
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static int hf_msg_tx_out_script32 = -1;
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static int hf_msg_tx_out_script64 = -1;
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static int hf_msg_tx_out_script8 = -1;
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static int hf_msg_tx_out_value = -1;
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static int hf_msg_tx_version = -1;
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static int hf_msg_version_addr_me = -1;
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static int hf_msg_version_addr_you = -1;
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static int hf_msg_version_nonce = -1;
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static int hf_msg_version_relay = -1;
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static int hf_msg_version_services = -1;
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static int hf_msg_version_start_height = -1;
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static int hf_msg_version_timestamp = -1;
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static int hf_msg_version_user_agent = -1;
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static int hf_msg_version_version = -1;
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static int hf_services_network = -1;
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static int hf_string_value = -1;
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static int hf_string_varint_count16 = -1;
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static int hf_string_varint_count32 = -1;
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static int hf_string_varint_count64 = -1;
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static int hf_string_varint_count8 = -1;
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static gint ett_bitcoin = -1;
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static gint ett_bitcoin_msg = -1;
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static gint ett_services = -1;
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static gint ett_address = -1;
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static gint ett_string = -1;
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static gint ett_addr_list = -1;
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static gint ett_inv_list = -1;
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static gint ett_getdata_list = -1;
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static gint ett_notfound_list = -1;
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static gint ett_getblocks_list = -1;
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static gint ett_getheaders_list = -1;
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static gint ett_tx_in_list = -1;
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static gint ett_tx_in_outp = -1;
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static gint ett_tx_out_list = -1;
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static expert_field ei_bitcoin_command_unknown = EI_INIT;
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static expert_field ei_bitcoin_script_len = EI_INIT;
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static gboolean bitcoin_desegment = TRUE;
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static guint
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get_bitcoin_pdu_length(packet_info *pinfo _U_, tvbuff_t *tvb,
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int offset, void *data _U_)
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{
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guint32 length;
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length = BITCOIN_HEADER_LENGTH;
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/* add payload length */
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length += tvb_get_letohl(tvb, offset+16);
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return length;
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}
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/**
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* Create a services sub-tree for bit-by-bit display
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*/
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static proto_tree *
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create_services_tree(tvbuff_t *tvb, proto_item *ti, guint32 offset)
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{
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proto_tree *tree;
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guint64 services;
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tree = proto_item_add_subtree(ti, ett_services);
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/* start of services */
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/* NOTE:
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* - 2011-06-05
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* Currently the boolean tree only supports a maximum of
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* 32 bits - so we split services in two
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*/
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services = tvb_get_letoh64(tvb, offset);
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/* service = NODE_NETWORK */
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proto_tree_add_boolean(tree, hf_services_network, tvb, offset, 4, (guint32)services);
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/* end of services */
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return tree;
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}
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/**
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* Create a sub-tree and fill it with a net_addr structure
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*/
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static proto_tree *
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create_address_tree(tvbuff_t *tvb, proto_item *ti, guint32 offset)
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{
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proto_tree *tree;
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tree = proto_item_add_subtree(ti, ett_address);
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/* services */
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ti = proto_tree_add_item(tree, hf_address_services, tvb, offset, 8, ENC_LITTLE_ENDIAN);
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create_services_tree(tvb, ti, offset);
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offset += 8;
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/* IPv6 address */
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proto_tree_add_item(tree, hf_address_address, tvb, offset, 16, ENC_NA);
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offset += 16;
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/* port */
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proto_tree_add_item(tree, hf_address_port, tvb, offset, 2, ENC_BIG_ENDIAN);
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return tree;
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}
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/**
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* Extract a variable length integer from a tvbuff
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*/
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static void
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get_varint(tvbuff_t *tvb, const gint offset, gint *length, guint64 *ret)
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{
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guint value;
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|
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/* Note: just throw an exception if not enough bytes are available in the tvbuff */
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/* calculate variable length */
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value = tvb_get_guint8(tvb, offset);
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if (value < 0xfd)
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{
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*length = 1;
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*ret = value;
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return;
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}
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if (value == 0xfd)
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{
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*length = 3;
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*ret = tvb_get_letohs(tvb, offset+1);
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return;
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}
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if (value == 0xfe)
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{
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*length = 5;
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*ret = tvb_get_letohl(tvb, offset+1);
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return;
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}
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|
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*length = 9;
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*ret = tvb_get_letoh64(tvb, offset+1);
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return;
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}
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|
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static void add_varint_item(proto_tree *tree, tvbuff_t *tvb, const gint offset, gint length,
|
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int hfi8, int hfi16, int hfi32, int hfi64)
|
|
{
|
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switch (length)
|
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{
|
|
case 1:
|
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proto_tree_add_item(tree, hfi8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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break;
|
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case 3:
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proto_tree_add_item(tree, hfi16, tvb, offset+1, 2, ENC_LITTLE_ENDIAN);
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break;
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case 5:
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proto_tree_add_item(tree, hfi32, tvb, offset+1, 4, ENC_LITTLE_ENDIAN);
|
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break;
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case 9:
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proto_tree_add_item(tree, hfi64, tvb, offset+1, 8, ENC_LITTLE_ENDIAN);
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break;
|
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}
|
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}
|
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|
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static proto_tree *
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create_string_tree(proto_tree *tree, int hfindex, tvbuff_t *tvb, guint32* offset)
|
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{
|
|
proto_tree *subtree;
|
|
proto_item *ti;
|
|
gint varint_length;
|
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guint64 varint;
|
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gint string_length;
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|
|
/* First is the length of the following string as a varint */
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get_varint(tvb, *offset, &varint_length, &varint);
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string_length = (gint) varint;
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|
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ti = proto_tree_add_item(tree, hfindex, tvb, *offset, varint_length + string_length, ENC_NA);
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subtree = proto_item_add_subtree(ti, ett_string);
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|
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/* length */
|
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add_varint_item(subtree, tvb, *offset, varint_length, hf_string_varint_count8,
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hf_string_varint_count16, hf_string_varint_count32,
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hf_string_varint_count64);
|
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*offset += varint_length;
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|
|
/* string */
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proto_tree_add_item(subtree, hf_string_value, tvb, *offset, string_length,
|
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ENC_ASCII);
|
|
*offset += string_length;
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|
|
return subtree;
|
|
}
|
|
|
|
static proto_tree *
|
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create_data_tree(proto_tree *tree, int hfindex, 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;
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|
|
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ti = proto_tree_add_item(tree, hfindex, tvb, *offset, varint_length + data_length, ENC_NA);
|
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subtree = proto_item_add_subtree(ti, ett_string);
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|
|
|
/* length */
|
|
add_varint_item(subtree, tvb, *offset, varint_length, hf_data_varint_count8,
|
|
hf_data_varint_count16, hf_data_varint_count32,
|
|
hf_data_varint_count64);
|
|
*offset += varint_length;
|
|
|
|
/* data */
|
|
proto_tree_add_item(subtree, hf_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, hf_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, hf_msg_version_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
ti = proto_tree_add_item(tree, hf_msg_version_services, tvb, offset, 8, ENC_LITTLE_ENDIAN);
|
|
create_services_tree(tvb, ti, offset);
|
|
offset += 8;
|
|
|
|
proto_tree_add_item(tree, hf_msg_version_timestamp, tvb, offset, 8, ENC_TIME_SECS_NSECS|ENC_LITTLE_ENDIAN);
|
|
offset += 8;
|
|
|
|
ti = proto_tree_add_item(tree, hf_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, hf_msg_version_addr_me, tvb, offset, 26, ENC_NA);
|
|
create_address_tree(tvb, ti, offset);
|
|
offset += 26;
|
|
|
|
proto_tree_add_item(tree, hf_msg_version_nonce, tvb, offset, 8, ENC_LITTLE_ENDIAN);
|
|
offset += 8;
|
|
|
|
create_string_tree(tree, hf_msg_version_user_agent, tvb, &offset);
|
|
}
|
|
|
|
if (version >= 209)
|
|
{
|
|
proto_tree_add_item(tree, hf_msg_version_start_height, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
|
|
if (version >= 70002)
|
|
{
|
|
proto_tree_add_item(tree, hf_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, hf_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, hf_msg_addr_count8, hf_msg_addr_count16,
|
|
hf_msg_addr_count32, hf_msg_addr_count64);
|
|
offset += length;
|
|
|
|
for (; count > 0; count--)
|
|
{
|
|
proto_tree *subtree;
|
|
|
|
ti = proto_tree_add_item(tree, hf_msg_addr_address, tvb, offset, 30, ENC_NA);
|
|
subtree = create_address_tree(tvb, ti, offset+4);
|
|
|
|
proto_tree_add_item(subtree, hf_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, hf_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, hf_msg_inv_count8, hf_msg_inv_count16,
|
|
hf_msg_inv_count32, hf_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, hf_msg_inv_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_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, hf_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, hf_msg_getdata_count8, hf_msg_getdata_count16,
|
|
hf_msg_getdata_count32, hf_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, hf_msg_getdata_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_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, hf_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, hf_msg_notfound_count8, hf_msg_notfound_count16,
|
|
hf_msg_notfound_count32, hf_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, hf_msg_notfound_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_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, hf_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, hf_msg_version_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
get_varint(tvb, offset, &length, &count);
|
|
add_varint_item(tree, tvb, offset, length, hf_msg_getblocks_count8, hf_msg_getblocks_count16,
|
|
hf_msg_getblocks_count32, hf_msg_getblocks_count64);
|
|
|
|
offset += length;
|
|
|
|
for (; count > 0; count--)
|
|
{
|
|
proto_tree_add_item(tree, hf_msg_getblocks_start, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_getheaders, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_msg_headers_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
get_varint(tvb, offset, &length, &count);
|
|
add_varint_item(tree, tvb, offset, length, hf_msg_getheaders_count8, hf_msg_getheaders_count16,
|
|
hf_msg_getheaders_count32, hf_msg_getheaders_count64);
|
|
|
|
offset += length;
|
|
|
|
for (; count > 0; count--)
|
|
{
|
|
proto_tree_add_item(tree, hf_msg_getheaders_start, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_tx, tvb, offset, -1, ENC_NA);
|
|
} else {
|
|
rti = proto_tree_add_none_format(tree, hf_bitcoin_msg_tx, tvb, offset, -1, "Tx message [ %4d ]", msgnum);
|
|
}
|
|
tree = proto_item_add_subtree(rti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_msg_tx_in_count8, hf_msg_tx_in_count16,
|
|
hf_msg_tx_in_count32, hf_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, hf_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, hf_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, hf_msg_tx_in_prev_outp_hash, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(prevtree, hf_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, hf_msg_tx_in_script8, hf_msg_tx_in_script16,
|
|
hf_msg_tx_in_script32, hf_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, hf_msg_tx_in_sig_script, tvb, offset, (guint)script_length, ENC_NA);
|
|
offset += (guint)script_length;
|
|
|
|
proto_tree_add_item(subtree, hf_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, hf_msg_tx_out_count8, hf_msg_tx_out_count16,
|
|
hf_msg_tx_out_count32, hf_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, hf_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, hf_msg_tx_out_value, tvb, offset, 8, ENC_LITTLE_ENDIAN);
|
|
offset += 8;
|
|
|
|
add_varint_item(subtree, tvb, offset, count_length, hf_msg_tx_out_script8, hf_msg_tx_out_script16,
|
|
hf_msg_tx_out_script32, hf_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, hf_msg_tx_out_script, tvb, offset, (guint)script_length, ENC_NA);
|
|
offset += (guint)script_length;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_block, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_prev_block, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_merkle_root, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_block_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
get_varint(tvb, offset, &length, &count);
|
|
add_varint_item(tree, tvb, offset, length, hf_msg_block_transactions8, hf_msg_block_transactions16,
|
|
hf_msg_block_transactions32, hf_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, hf_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, hf_msg_headers_count8, hf_msg_headers_count16,
|
|
hf_msg_headers_count32, hf_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, hf_msg_headers_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_msg_headers_prev_block, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(subtree, hf_msg_headers_merkle_root, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(subtree, hf_msg_headers_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_msg_headers_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(subtree, hf_msg_headers_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
get_varint(tvb, offset, &length, &txcount);
|
|
|
|
add_varint_item(subtree, tvb, offset, length, hf_msg_headers_count8, hf_msg_headers_count16,
|
|
hf_msg_headers_count32, hf_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, hf_bitcoin_msg_ping, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_pong, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_reject, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
create_string_tree(tree, hf_msg_reject_message, tvb, &offset);
|
|
|
|
proto_tree_add_item(tree, hf_msg_reject_ccode, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
offset += 1;
|
|
|
|
create_string_tree(tree, hf_msg_reject_reason, tvb, &offset);
|
|
|
|
if ((tvb_reported_length(tvb) - offset) > 0)
|
|
{
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_filterload, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
create_data_tree(tree, hf_msg_filterload_filter, tvb, &offset);
|
|
|
|
proto_tree_add_item(tree, hf_msg_filterload_nhashfunc, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_filterload_ntweak, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_bitcoin_msg_filteradd, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
create_data_tree(tree, hf_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, hf_bitcoin_msg_merkleblock, tvb, offset, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin_msg);
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_prev_block, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_merkle_root, tvb, offset, 32, ENC_NA);
|
|
offset += 32;
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_time, tvb, offset, 4, ENC_TIME_SECS|ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_bits, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_msg_merkleblock_nonce, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_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, hf_msg_merkleblock_hashes_count8, hf_msg_merkleblock_hashes_count16,
|
|
hf_msg_merkleblock_hashes_count32, hf_msg_merkleblock_hashes_count64);
|
|
offset += length;
|
|
|
|
for (; count > 0; count--)
|
|
{
|
|
proto_tree_add_item(subtree, hf_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, hf_msg_merkleblock_flags_size8, hf_msg_merkleblock_flags_size16,
|
|
hf_msg_merkleblock_flags_size32, hf_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, hf_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, proto_bitcoin, tvb, 0, -1, ENC_NA);
|
|
tree = proto_item_add_subtree(ti, ett_bitcoin);
|
|
|
|
/* add basic protocol data */
|
|
proto_tree_add_item(tree, hf_bitcoin_magic, tvb, 0, 4, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item_ret_string(tree, hf_bitcoin_command, tvb, 4, 12, ENC_ASCII|ENC_NA, pinfo->pool, &command);
|
|
proto_tree_add_item(tree, hf_bitcoin_length, tvb, 16, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_checksum(tree, tvb, 20, hf_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)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_bitcoin_magic,
|
|
{ "Packet magic", "bitcoin.magic",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_command,
|
|
{ "Command name", "bitcoin.command",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_length,
|
|
{ "Payload Length", "bitcoin.length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_checksum,
|
|
{ "Payload checksum", "bitcoin.checksum",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_version,
|
|
{ "Version message", "bitcoin.version",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_version,
|
|
{ "Protocol version", "bitcoin.version.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_services,
|
|
{ "Node services", "bitcoin.version.services",
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_timestamp,
|
|
{ "Node timestamp", "bitcoin.version.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_addr_me,
|
|
{ "Address of emmitting node", "bitcoin.version.addr_me",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_addr_you,
|
|
{ "Address as receiving node", "bitcoin.version.addr_you",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_nonce,
|
|
{ "Random nonce", "bitcoin.version.nonce",
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_user_agent,
|
|
{ "User agent", "bitcoin.version.user_agent",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_start_height,
|
|
{ "Block start height", "bitcoin.version.start_height",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_version_relay,
|
|
{ "Relay flag", "bitcoin.version.relay",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_count8,
|
|
{ "Count", "bitcoin.addr.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_count16,
|
|
{ "Count", "bitcoin.addr.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_count32,
|
|
{ "Count", "bitcoin.addr.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_count64,
|
|
{ "Count", "bitcoin.addr.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_addr,
|
|
{ "Address message", "bitcoin.addr",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_address,
|
|
{ "Address", "bitcoin.addr.address",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_addr_timestamp,
|
|
{ "Address timestamp", "bitcoin.addr.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_count8,
|
|
{ "Count", "bitcoin.inv.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_count16,
|
|
{ "Count", "bitcoin.inv.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_count32,
|
|
{ "Count", "bitcoin.inv.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_count64,
|
|
{ "Count", "bitcoin.inv.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_inv,
|
|
{ "Inventory message", "bitcoin.inv",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_type,
|
|
{ "Type", "bitcoin.inv.type",
|
|
FT_UINT32, BASE_DEC, VALS(inv_types), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_inv_hash,
|
|
{ "Data hash", "bitcoin.inv.hash",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_getdata,
|
|
{ "Getdata message", "bitcoin.getdata",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_count8,
|
|
{ "Count", "bitcoin.getdata.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_count16,
|
|
{ "Count", "bitcoin.getdata.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_count32,
|
|
{ "Count", "bitcoin.getdata.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_count64,
|
|
{ "Count", "bitcoin.getdata.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_type,
|
|
{ "Type", "bitcoin.getdata.type",
|
|
FT_UINT32, BASE_DEC, VALS(inv_types), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getdata_hash,
|
|
{ "Data hash", "bitcoin.getdata.hash",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_count8,
|
|
{ "Count", "bitcoin.notfound.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_count16,
|
|
{ "Count", "bitcoin.notfound.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_count32,
|
|
{ "Count", "bitcoin.notfound.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_count64,
|
|
{ "Count", "bitcoin.notfound.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_notfound,
|
|
{ "Getdata message", "bitcoin.notfound",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_type,
|
|
{ "Type", "bitcoin.notfound.type",
|
|
FT_UINT32, BASE_DEC, VALS(inv_types), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_notfound_hash,
|
|
{ "Data hash", "bitcoin.notfound.hash",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_count8,
|
|
{ "Count", "bitcoin.getblocks.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_count16,
|
|
{ "Count", "bitcoin.getblocks.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_count32,
|
|
{ "Count", "bitcoin.getblocks.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_count64,
|
|
{ "Count", "bitcoin.getblocks.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_getblocks,
|
|
{ "Getdata message", "bitcoin.getblocks",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_start,
|
|
{ "Starting hash", "bitcoin.getblocks.hash_start",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getblocks_stop,
|
|
{ "Stopping hash", "bitcoin.getblocks.hash_stop",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_count8,
|
|
{ "Count", "bitcoin.getheaders.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_count16,
|
|
{ "Count", "bitcoin.getheaders.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_count32,
|
|
{ "Count", "bitcoin.getheaders.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_count64,
|
|
{ "Count", "bitcoin.getheaders.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_version,
|
|
{ "Protocol version", "bitcoin.headers.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_getheaders,
|
|
{ "Getheaders message", "bitcoin.getheaders",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_start,
|
|
{ "Starting hash", "bitcoin.getheaders.hash_start",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_getheaders_stop,
|
|
{ "Stopping hash", "bitcoin.getheaders.hash_stop",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_count8,
|
|
{ "Input Count", "bitcoin.tx.input_count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_count16,
|
|
{ "Input Count", "bitcoin.tx.input_count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_count32,
|
|
{ "Input Count", "bitcoin.tx.input_count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_count64,
|
|
{ "Input Count", "bitcoin.tx.input_count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_tx,
|
|
{ "Tx message", "bitcoin.tx",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_version,
|
|
{ "Transaction version", "bitcoin.tx.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_script8,
|
|
{ "Script Length", "bitcoin.tx.in.script_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_script16,
|
|
{ "Script Length", "bitcoin.tx.in.script_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_script32,
|
|
{ "Script Length", "bitcoin.tx.in.script_length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_script64,
|
|
{ "Script Length", "bitcoin.tx.in.script_length64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in,
|
|
{ "Transaction input", "bitcoin.tx.in",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_prev_output,
|
|
{ "Previous output", "bitcoin.tx.in.prev_output",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_prev_outp_hash,
|
|
{ "Hash", "bitcoin.tx.in.prev_output.hash",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_prev_outp_index,
|
|
{ "Index", "bitcoin.tx.in.prev_output.index",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_sig_script,
|
|
{ "Signature script", "bitcoin.tx.in.sig_script",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_in_seq,
|
|
{ "Sequence", "bitcoin.tx.in.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_count8,
|
|
{ "Output Count", "bitcoin.tx.output_count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_count16,
|
|
{ "Output Count", "bitcoin.tx.output_count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_count32,
|
|
{ "Output Count", "bitcoin.tx.output_count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_count64,
|
|
{ "Output Count", "bitcoin.tx.output_count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out,
|
|
{ "Transaction output", "bitcoin.tx.out",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_value,
|
|
{ "Value", "bitcoin.tx.out.value",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_script8,
|
|
{ "Script Length", "bitcoin.tx.out.script_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_script16,
|
|
{ "Script Length", "bitcoin.tx.out.script_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_script32,
|
|
{ "Script Length", "bitcoin.tx.out.script_length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_script64,
|
|
{ "Script Length", "bitcoin.tx.out.script_length64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_out_script,
|
|
{ "Script", "bitcoin.tx.out.script",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_tx_lock_time,
|
|
{ "Block lock time or block ID", "bitcoin.tx.lock_time",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_transactions8,
|
|
{ "Number of transactions", "bitcoin.block.num_transactions",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_transactions16,
|
|
{ "Number of transactions", "bitcoin.block.num_transactions",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_transactions32,
|
|
{ "Number of transactions", "bitcoin.block.num_transactions",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_transactions64,
|
|
{ "Number of transactions", "bitcoin.block.num_transactions64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_block,
|
|
{ "Block message", "bitcoin.block",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_version,
|
|
{ "Block version", "bitcoin.block.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_prev_block,
|
|
{ "Previous block", "bitcoin.block.prev_block",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_merkle_root,
|
|
{ "Merkle root", "bitcoin.block.merkle_root",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_time,
|
|
{ "Block timestamp", "bitcoin.block.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_bits,
|
|
{ "Bits", "bitcoin.block.bits",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_block_nonce,
|
|
{ "Nonce", "bitcoin.block.nonce",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_headers,
|
|
{ "Headers message", "bitcoin.headers",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_version,
|
|
{ "Block version", "bitcoin.headers.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_prev_block,
|
|
{ "Previous block", "bitcoin.headers.prev_block",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_merkle_root,
|
|
{ "Merkle root", "bitcoin.headers.merkle_root",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_time,
|
|
{ "Block timestamp", "bitcoin.headers.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_bits,
|
|
{ "Bits", "bitcoin.headers.bits",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_nonce,
|
|
{ "Nonce", "bitcoin.headers.nonce",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_count8,
|
|
{ "Count", "bitcoin.headers.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_count16,
|
|
{ "Count", "bitcoin.headers.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_count32,
|
|
{ "Count", "bitcoin.headers.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_headers_count64,
|
|
{ "Count", "bitcoin.headers.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_ping,
|
|
{ "Ping message", "bitcoin.ping",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_ping_nonce,
|
|
{ "Random nonce", "bitcoin.ping.nonce",
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_pong,
|
|
{ "Pong message", "bitcoin.pong",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_pong_nonce,
|
|
{ "Random nonce", "bitcoin.pong.nonce",
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_reject,
|
|
{ "Reject message", "bitcoin.reject",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_reject_message,
|
|
{ "Message rejected", "bitcoin.reject.message",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_reject_reason,
|
|
{ "Reason", "bitcoin.reject.reason",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_reject_ccode,
|
|
{ "CCode", "bitcoin.reject.ccode",
|
|
FT_UINT8, BASE_HEX, VALS(reject_ccode), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_reject_data,
|
|
{ "Data", "bitcoin.reject.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_filterload,
|
|
{ "Filterload message", "bitcoin.filterload",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_filterload_filter,
|
|
{ "Filter", "bitcoin.filterload.filter",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_filterload_nhashfunc,
|
|
{ "nHashFunc", "bitcoin.filterload.nhashfunc",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_filterload_ntweak,
|
|
{ "nTweak", "bitcoin.filterload.ntweak",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_filterload_nflags,
|
|
{ "nFlags", "bitcoin.filterload.nflags",
|
|
FT_UINT8, BASE_HEX, VALS(filterload_nflags), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_filteradd,
|
|
{ "Filteradd message", "bitcoin.filteradd",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_filteradd_data,
|
|
{ "Data", "bitcoin.filteradd.data",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_bitcoin_msg_merkleblock,
|
|
{ "Merkleblock message", "bitcoin.merkleblock",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_transactions,
|
|
{ "Number of transactions", "bitcoin.merkleblock.num_transactions",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_version,
|
|
{ "Block version", "bitcoin.merkleblock.version",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_prev_block,
|
|
{ "Previous block", "bitcoin.merkleblock.prev_block",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_merkle_root,
|
|
{ "Merkle root", "bitcoin.merkleblock.merkle_root",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_time,
|
|
{ "Block timestamp", "bitcoin.merkleblock.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_bits,
|
|
{ "Bits", "bitcoin.merkleblock.bits",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_nonce,
|
|
{ "Nonce", "bitcoin.merkleblock.nonce",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_hashes_count8,
|
|
{ "Count", "bitcoin.merkleblock.hashes.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_hashes_count16,
|
|
{ "Count", "bitcoin.merkleblock.hashes.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_hashes_count32,
|
|
{ "Count", "bitcoin.merkleblock.hashes.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_hashes_count64,
|
|
{ "Count", "bitcoin.merkleblock.hashes.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_hashes_hash,
|
|
{ "Hash", "bitcoin.merkleblock.hashes.hash",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_flags_size8,
|
|
{ "Size", "bitcoin.merkleblock.flags.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_flags_size16,
|
|
{ "Size", "bitcoin.merkleblock.flags.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_flags_size32,
|
|
{ "Size", "bitcoin.merkleblock.flags.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_flags_size64,
|
|
{ "Size", "bitcoin.merkleblock.flags.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_msg_merkleblock_flags_data,
|
|
{ "Data", "bitcoin.merkleblock.flags.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_services_network,
|
|
{ "Network node", "bitcoin.services.network",
|
|
FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x1,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_address_services,
|
|
{ "Node services", "bitcoin.address.services",
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_address_address,
|
|
{ "Node address", "bitcoin.address.address",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_address_port,
|
|
{ "Node port", "bitcoin.address.port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_string_value,
|
|
{ "String value", "bitcoin.string.value",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_string_varint_count8,
|
|
{ "Count", "bitcoin.string.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_string_varint_count16,
|
|
{ "Count", "bitcoin.string.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_string_varint_count32,
|
|
{ "Count", "bitcoin.string.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_string_varint_count64,
|
|
{ "Count", "bitcoin.string.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_data_value,
|
|
{ "Data", "bitcoin.data.value",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_data_varint_count8,
|
|
{ "Count", "bitcoin.data.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_data_varint_count16,
|
|
{ "Count", "bitcoin.data.count",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_data_varint_count32,
|
|
{ "Count", "bitcoin.data.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_data_varint_count64,
|
|
{ "Count", "bitcoin.data.count64",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
};
|
|
|
|
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;
|
|
|
|
proto_bitcoin = proto_register_protocol("Bitcoin protocol", "Bitcoin", "bitcoin");
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
proto_register_field_array(proto_bitcoin, hf, array_length(hf));
|
|
|
|
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", proto_bitcoin, HEURISTIC_ENABLE);
|
|
|
|
/* Register all of the commands */
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_version, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "version", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_addr, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "addr", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_inv, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "inv", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_getdata, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "getdata", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_getblocks, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "getblocks", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_getheaders, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "getheaders", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_tx, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "tx", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_block, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "block", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_ping, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "ping", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_pong, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "pong", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_notfound, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "notfound", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_reject, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "reject", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_headers, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "headers", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_filterload, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "filterload", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_filteradd, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "filteradd", command_handle);
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_merkleblock, proto_bitcoin );
|
|
dissector_add_string("bitcoin.command", "merkleblock", command_handle);
|
|
|
|
/* messages with no payload */
|
|
command_handle = create_dissector_handle( dissect_bitcoin_msg_empty, proto_bitcoin );
|
|
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, proto_bitcoin ); */
|
|
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:
|
|
*/
|