/* packet-bitcoin.c * Routines for bitcoin dissection * Copyright 2011, Christian Svensson * Bitcoin address: 15Y2EN5mLnsTt3CZBfgpnZR5SeLwu7WEHz * * See https://en.bitcoin.it/wiki/Protocol_specification * * Updated 2015, Laurenz Kamp * 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 * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define NEW_PROTO_TREE_API #include "config.h" #include #include #include #include #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://bugs.wireshark.org/bugzilla/show_bug.cgi?id=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_TIMESPEC|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_TIMESPEC|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.id, 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_TIMESPEC|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 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_TIMESPEC|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_TIMESPEC|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.id, 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.id, -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_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 - http://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: */