/* packet-msgpack.c

 *

 * Routines for MsgPack dissection

 * References:

 *   https://github.com/msgpack/msgpack/blob/master/spec.md

 *

 * Copyright 2018, Dario Lombardo <lomato@gmail.com>

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

#include "config.h"

#include <wsutil/array.h>

#include <epan/packet.h>

#include <epan/expert.h>

#include <epan/to_str.h>

void proto_register_msgpack(void);

void proto_reg_handoff_msgpack(void);

static dissector_handle_t msgpack_handle;

static int proto_msgpack;

static int hf_msgpack_string;

static int hf_msgpack_bin;

static int hf_msgpack_type;

static int hf_msgpack_string_len;

static int hf_msgpack_bin_len;

static int hf_msgpack_uint_fix;

static int hf_msgpack_uint_8;

static int hf_msgpack_uint_16;

static int hf_msgpack_uint_32;

static int hf_msgpack_uint_64;

static int hf_msgpack_int_fix;

static int hf_msgpack_int_8;

static int hf_msgpack_int_16;

static int hf_msgpack_int_32;

static int hf_msgpack_int_64;

static int hf_msgpack_bool;

static int hf_msgpack_float;

static int hf_msgpack_double;

static int hf_msgpack_ext_type;

static int hf_msgpack_ext_len;

static int hf_msgpack_ext_bytes;

static int ett_msgpack;

static int ett_msgpack_num;

static int ett_msgpack_string;

static int ett_msgpack_bin;

static int ett_msgpack_array;

static int ett_msgpack_map;

static int ett_msgpack_map_elem;

static int ett_msgpack_ext;

static expert_field ei_msgpack_unsupported;

/* names and ranges from https://github.com/msgpack/msgpack/blob/master/spec.md#formats */

static const range_string msgpack_types[] = {

  {0x00, 0x7F, "positive fixint"},

  {0x80, 0x8F, "fixmap"},

  {0x90, 0x9F, "fixarray"},

  {0xA0, 0xBF, "fixstr"},

  {0xC0, 0xC0, "nil"},

  {0xC1, 0xC1, "(never used)"},

  {0xC2, 0xC2, "false"},

  {0xC3, 0xC3, "true"},

  {0xC4, 0xC4, "bin 8"},

  {0xC5, 0xC5, "bin 16"},

  {0xC6, 0xC6, "bin 32"},

  {0xC7, 0xC7, "ext 8"},

  {0xC8, 0xC8, "ext 16"},

  {0xC9, 0xC9, "ext 32"},

  {0xCA, 0xCA, "float 32"},

  {0xCB, 0xCB, "flost 64"},

  {0xCC, 0xCC, "uint 8"},

  {0xCD, 0xCD, "uint 16"},

  {0xCE, 0xCE, "uint 32"},

  {0xCF, 0xCF, "uint 64"},

  {0xD0, 0xD0, "int 8"},

  {0xD1, 0xD1, "int 16"},

  {0xD2, 0xD2, "int 32"},

  {0xD3, 0xD3, "int 64"},

  {0xD4, 0xD4, "fixext 1"},

  {0xD5, 0xD5, "fixext 2"},

  {0xD6, 0xD6, "fixext 4"},

  {0xD7, 0xD7, "fixext 8"},

  {0xD8, 0xD8, "fixext 16"},

  {0xD9, 0xD9, "str 8"},

  {0xDA, 0xDA, "str 16"},

  {0xDB, 0xDB, "str 32"},

  {0xDC, 0xDC, "array 16"},

  {0xDD, 0xDD, "array 32"},

  {0xDE, 0xDE, "map 16"},

  {0xDF, 0xDF, "map 32"},

  {0xE0, 0xFF, "negative fixint"},

  {0x00, 0x00, NULL}

};

static void dissect_msgpack_object(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, void* data, unsigned* offset, char** value);

static void dissect_msgpack_integer(tvbuff_t* tvb, packet_info *pinfo, proto_tree* tree, uint8_t type, void* data, unsigned* offset, char** value)

{

  uint8_t uint8;

  uint16_t uint16;

  uint32_t uint32;

  uint64_t uint64;

  int8_t int8;

  int16_t int16;

  int32_t int32;

  int64_t int64;

  char* label;

  proto_tree* subtree;

  proto_item* ti;

  int t_offset = *offset;

  label = (data ? (char*)data : "MsgPack Integer");

  if (type >> 7 == 0) {

    ti = proto_tree_add_uint_format(tree, hf_msgpack_uint_fix, tvb, *offset, 1, type, "%s: %u", label, type);

    subtree = proto_item_add_subtree(ti, ett_msgpack_num);

    proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

    if (value)

      *value = wmem_strdup_printf(pinfo->pool, "%u", type);

    *offset += 1;

    return;

  }

  if (type >> 5 == 7) {

    int8_t stype = (int8_t)type;

    ti = proto_tree_add_int_format(tree, hf_msgpack_int_fix, tvb, *offset, 1, stype, "%s: %d", label, stype);

    subtree = proto_item_add_subtree(ti, ett_msgpack_num);

    proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

    if (value)

      *value = wmem_strdup_printf(pinfo->pool, "%d", stype);

    *offset += 1;

    return;

  }

  switch (type) {

    case 0xcc:

      uint8 = tvb_get_uint8(tvb, *offset + 1);

      ti = proto_tree_add_uint_format(tree, hf_msgpack_uint_8, tvb, *offset, 2, uint8, "%s: %u", label, uint8);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%u", uint8);

      *offset += 2;

      break;

    case 0xcd:

      uint16 = tvb_get_ntohs(tvb, *offset + 1);

      ti = proto_tree_add_uint_format(tree, hf_msgpack_uint_16, tvb, *offset, 3, uint16, "%s: %u", label, uint16);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%u", uint16);

      *offset += 3;

      break;

    case 0xce:

      uint32 = tvb_get_ntohl(tvb, *offset + 1);

      ti = proto_tree_add_uint_format(tree, hf_msgpack_uint_32, tvb, *offset, 5, uint32, "%s: %u", label, uint32);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%u", uint32);

      *offset += 5;

      break;

    case 0xcf:

      uint64 = tvb_get_ntoh64(tvb, *offset + 1);

      ti = proto_tree_add_uint64_format(tree, hf_msgpack_uint_64, tvb, *offset, 9, uint64, "%s: %" PRIu64, label, uint64);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%" PRIu64, uint64);

      *offset += 9;

      break;

    case 0xd0:

      int8 = tvb_get_int8(tvb, *offset + 1);

      ti = proto_tree_add_int_format(tree, hf_msgpack_int_8, tvb, *offset, 2, int8, "%s: %d", label, int8);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%d", int8);

      *offset += 2;

      break;

    case 0xd1:

      int16 = tvb_get_ntohs(tvb, *offset + 1);

      ti = proto_tree_add_int_format(tree, hf_msgpack_int_16, tvb, *offset, 3, int16, "%s: %d", label, int16);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%d", int16);

      *offset += 3;

      break;

    case 0xd2:

      int32 = tvb_get_ntohl(tvb, *offset + 1);

      ti = proto_tree_add_int_format(tree, hf_msgpack_int_32, tvb, *offset, 5, int32, "%s: %d", label, int32);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%d", int32);

      *offset += 5;

      break;

    case 0xd3:

      int64 = tvb_get_ntoh64(tvb, *offset + 1);

      ti = proto_tree_add_int64_format(tree, hf_msgpack_int_64, tvb, *offset, 9, int64, "%s: %" PRId64, label, int64);

      if (value)

        *value = wmem_strdup_printf(pinfo->pool, "%" PRId64, int64);

      *offset += 9;

      break;

    default:

      DISSECTOR_ASSERT_NOT_REACHED();

      break;

  }

  subtree = proto_item_add_subtree(ti, ett_msgpack_num);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, t_offset, 1, ENC_NA);

}

// NOLINTNEXTLINE(misc-no-recursion)

static void dissect_msgpack_map(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, uint8_t type, void* data, unsigned* offset, char** value)

{

  proto_tree* subtree;

  proto_tree* map_subtree;

  proto_item* ti;

  uint32_t len = 0;

  uint8_t lensize = 0;

  char* label;

  unsigned i;

  if (type >> 4 == 0x8) {

    len = type & 0x0F;

    lensize = 0;

  }

  else if (type == 0xde) {

    len = tvb_get_ntohs(tvb, *offset + 1);

    lensize = 2;

  }

  else if (type == 0xdf) {

    len = tvb_get_ntohl(tvb, *offset + 1);

    lensize = 4;

  }

  else {

    DISSECTOR_ASSERT_NOT_REACHED();

  }

  label = wmem_strdup_printf(pinfo->pool, "%s: %u element%s", data ? (char*)data : "MsgPack Map", len, len > 1 ? "s" : "");

  ti = proto_tree_add_string_format(tree, hf_msgpack_string, tvb, *offset, 1 + lensize, NULL, "%s", label);

  subtree = proto_item_add_subtree(ti, ett_msgpack_map);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

  *offset += lensize + 1;

  for (i = 0; i < len; i++) {

    // We recurse here, but we'll run out of packet before we run out of stack.

    map_subtree = proto_tree_add_subtree(subtree, tvb, *offset, 0, ett_msgpack_map_elem, NULL, "");

    dissect_msgpack_object(tvb, pinfo, map_subtree, "Key", offset, value);

    if (value)

      proto_item_append_text(map_subtree, " %s:", *value);

    dissect_msgpack_object(tvb, pinfo, map_subtree, "Value", offset, value);

    if (value)

      proto_item_append_text(map_subtree, " %s", *value);

  }

  if (value)

    *value = label;

}

// NOLINTNEXTLINE(misc-no-recursion)

static void dissect_msgpack_array(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, uint8_t type, void* data, unsigned* offset, char** value)

{

  proto_tree* subtree;

  proto_item* ti;

  uint32_t len = 0;

  uint8_t lensize = 0;

  char* label;

  unsigned i;

  if (type >> 4 == 0x9) {

    len = type & 0x0F;

    lensize = 0;

  }

  else if (type == 0xdc) {

    len = tvb_get_ntohs(tvb, *offset + 1);

    lensize = 2;

  }

  else if (type == 0xdd) {

    len = tvb_get_ntohl(tvb, *offset + 1);

    lensize = 4;

  }

  else {

    DISSECTOR_ASSERT_NOT_REACHED();

  }

  label = wmem_strdup_printf(pinfo->pool, "%s %u element%s", data ? (char*)data : "MsgPack Array", len, len > 1 ? "s" : "");

  ti = proto_tree_add_string_format(tree, hf_msgpack_string, tvb, *offset, 1 + lensize, NULL, "%s", label);

  subtree = proto_item_add_subtree(ti, ett_msgpack_array);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

  *offset += lensize + 1;

  for (i = 0; i < len; i++) {

    // We recurse here, but we'll run out of packet before we run out of stack.

    dissect_msgpack_object(tvb, pinfo, subtree, data, offset, value);

  }

  if (value)

    *value = label;

}

static void dissect_msgpack_string(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, int type, void* data, unsigned* offset, char** value)

{

  uint32_t len = 0;

  uint8_t lensize = 0;

  char* label;

  proto_item* ti;

  proto_tree* subtree;

  char* lvalue;

  if (type >> 5 == 0x5) {

    len = type & 0x1F;

    lensize = 0;

  }

  else if (type == 0xd9) {

    len = tvb_get_uint8(tvb, *offset + 1);

    lensize = 1;

  }

  else if (type == 0xda) {

    len = tvb_get_ntohs(tvb, *offset + 1);

    lensize = 2;

  }

  else if (type == 0xdb) {

    len = tvb_get_ntohl(tvb, *offset + 1);

    lensize = 4;

  }

  else {

    DISSECTOR_ASSERT_NOT_REACHED();

  }

  lvalue = (char*)tvb_get_string_enc(pinfo->pool, tvb, *offset + 1 + lensize, len, ENC_UTF_8);

  label = (data ? (char*)data : "MsgPack String");

  ti = proto_tree_add_string_format(tree, hf_msgpack_string, tvb, *offset, 1 + lensize + len, lvalue, "%s: %s", label, lvalue);

  subtree = proto_item_add_subtree(ti, ett_msgpack_string);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

  if (lensize == 0) {

    proto_tree_add_uint(subtree, hf_msgpack_string_len, tvb, *offset, 1, len);

    *offset += 1;

  }

  else {

    *offset += 1;

    proto_tree_add_item(subtree, hf_msgpack_string_len, tvb, *offset, lensize, ENC_BIG_ENDIAN);

    *offset += lensize;

  }

  proto_tree_add_item(subtree, hf_msgpack_string, tvb, *offset, len, ENC_UTF_8);

  *offset += len;

  if (value)

    *value = lvalue;

}

static void dissect_msgpack_bin(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, int type, void* data, unsigned* offset, char** value)

{

  uint32_t len = 0;

  uint8_t lensize = 0;

  char* label;

  proto_item* ti;

  proto_tree* subtree;

  char* lvalue;

  switch (type) {

    case 0xc4:

      len = tvb_get_uint8(tvb, *offset + 1);

      lensize = 1;

      break;

    case 0xc5:

      len = tvb_get_ntohs(tvb, *offset + 1);

      lensize = 2;

      break;

    case 0xc6:

      len = tvb_get_ntohl(tvb, *offset + 1);

      lensize = 4;

      break;

    default:

      DISSECTOR_ASSERT_NOT_REACHED();

      break;

  }

  lvalue = (char*)tvb_bytes_to_str(pinfo->pool, tvb, *offset + 1 + lensize, len);

  label = (data ? (char*)data : "MsgPack Bytes");

  ti = proto_tree_add_bytes_format(tree, hf_msgpack_bin, tvb, *offset, 1 + lensize + len, NULL, "%s: %s", label, lvalue);

  subtree = proto_item_add_subtree(ti, ett_msgpack_bin);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

  *offset += 1;

  proto_tree_add_item(subtree, hf_msgpack_bin_len, tvb, *offset, lensize, ENC_BIG_ENDIAN);

  *offset += lensize;

  proto_tree_add_item(subtree, hf_msgpack_bin, tvb, *offset, len, ENC_NA);

  *offset += len;

  if (value)

    *value = lvalue;

}

static void dissect_msgpack_float(tvbuff_t* tvb, packet_info *pinfo, proto_tree* tree, int type, void* data, unsigned* offset, char** value)

{

  char* label;

  char* lvalue;

  proto_item* ti;

  proto_tree* subtree;

  int s_offset = *offset;

  *offset += 1;

  if (type == 0xca) {

    label = (data ? (char*)data : "MsgPack Float");

    float f = tvb_get_ntohieee_float(tvb, *offset);

    lvalue = wmem_strdup_printf(pinfo->pool, "%f", f);

    ti = proto_tree_add_float_format(tree, hf_msgpack_float, tvb, *offset, 4, f, "%s: %f", label, f);

    if (value)

      *value = lvalue;

    *offset += 4;

  }

  else if (type == 0xcb) {

    label = (data ? (char*)data : "MsgPack Double");

    double d = tvb_get_ntohieee_double(tvb, *offset);

    lvalue = wmem_strdup_printf(pinfo->pool, "%lf", d);

    ti = proto_tree_add_double_format(tree, hf_msgpack_double, tvb, *offset, 8, d, "%s: %lf", label, d);

    if (value)

      *value = lvalue;

    *offset += 8;

  }

  else {

    DISSECTOR_ASSERT_NOT_REACHED();

  }

  subtree = proto_item_add_subtree(ti, ett_msgpack_num);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, s_offset, 1, ENC_NA);

}

static void dissect_msgpack_ext(tvbuff_t* tvb, packet_info *pinfo, proto_tree* tree, int type, void* data, unsigned* offset, char** value)

{

  char* label;

  uint32_t len = 0;

  uint8_t lensize = 0;

  proto_tree* subtree;

  unsigned offset_start = *offset;

  label = (data ? (char*)data : "Ext");

  subtree = proto_tree_add_subtree(tree, tvb, *offset, 0, ett_msgpack_ext, NULL, label);

  proto_tree_add_item(subtree, hf_msgpack_type, tvb, *offset, 1, ENC_NA);

  if (type >= 0xd4 && type <= 0xd8) {

    len = 1 << (type - 0xd4);

    proto_tree_add_uint(subtree, hf_msgpack_ext_len, tvb, *offset, 1, len);

  }

  else if (type == 0xc7) {

    len = tvb_get_uint8(tvb, *offset + 2);

    lensize = 1;

  }

  else if (type == 0xc8) {

    len = tvb_get_ntohs(tvb, *offset + 2);

    lensize = 2;

  }

  else if (type == 0xc9) {

    len = tvb_get_ntohl(tvb, *offset + 2);

    lensize = 4;

  }

  else {

    DISSECTOR_ASSERT_NOT_REACHED();

  }

  *offset += 1;

  proto_tree_add_item(subtree, hf_msgpack_ext_type, tvb, *offset, 1, ENC_NA);

  *offset += 1;

  if (lensize > 0) {

    proto_tree_add_item(subtree, hf_msgpack_ext_len, tvb, *offset, lensize, ENC_BIG_ENDIAN);

    *offset += lensize;

  }

  proto_tree_add_item(subtree, hf_msgpack_ext_bytes, tvb, *offset, len, ENC_NA);

  if (value) {

    *value = tvb_bytes_to_str(pinfo->pool, tvb, *offset, len);

  }

  *offset += len;

  proto_item_set_len(subtree, *offset - offset_start);

}

// NOLINTNEXTLINE(misc-no-recursion)

static void dissect_msgpack_object(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, void* data, unsigned* offset, char** value)

{

  uint8_t type;

  int s_offset = *offset;

  type = tvb_get_uint8(tvb, *offset);

  col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", rval_to_str_const(type, msgpack_types, " Unknown Msg Type"));

  // Nil

  if (type == 0xc0) {

    proto_tree_add_string_format(tree, hf_msgpack_string, tvb, *offset, 1, "nil", "nil");

    if (value)

      *value = "nil";

    *offset += 1;

    return;

  }

  // True/False

  if (type == 0xc2 || type == 0xc3) {

    proto_tree_add_boolean(tree, hf_msgpack_bool, tvb, *offset, 1, type - 0xc2);

    if (value)

      *value = (type - 0xc2) ? "True" : "False";

    *offset += 1;

    return;

  }

  // Integer

  if (type >= 0xe0 || type <= 0x7f || (type >= 0xcc && type <= 0xd3)) {

    dissect_msgpack_integer(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // Float

  if (type == 0xca || type == 0xcb) {

    dissect_msgpack_float(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // String

  if (type >> 5 == 0x5 || type == 0xd9 || type == 0xda || type == 0xdb) {

    dissect_msgpack_string(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // Bin

  if (type == 0xc4 || type == 0xc5 || type == 0xc6) {

    dissect_msgpack_bin(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // Array

  if (type >> 4 == 0x9 || type == 0xdc || type == 0xdd) {

    // We recurse here, but we'll run out of packet before we run out of stack.

    dissect_msgpack_array(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // Map

  if (type >> 4 == 0x8 || type == 0xde || type == 0xdf) {

    // We recurse here, but we'll run out of packet before we run out of stack.

    dissect_msgpack_map(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  // Ext

  if ((type >= 0xd4 && type <= 0xd8) || (type >= 0xc7 && type <= 0xc9)) {

    dissect_msgpack_ext(tvb, pinfo, tree, type, data, offset, value);

    return;

  }

  if (*offset - s_offset == 0) {

    expert_add_info_format(pinfo, tree, &ei_msgpack_unsupported, "Type 0x%x is unsupported", type);

  }

}

static int dissect_msgpack(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, void* data)

{

  unsigned offset = 0;

  col_set_str(pinfo->cinfo, COL_PROTOCOL, "MsgPack");

  col_clear(pinfo->cinfo, COL_INFO);

  dissect_msgpack_object(tvb, pinfo, tree, data, &offset, NULL);

  return offset;

}

void proto_register_msgpack(void)

{

  expert_module_t* expert_msgpack;

  static hf_register_info hf[] = {

    { &hf_msgpack_string,

      { "String", "msgpack.string", FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_type,

      { "Type", "msgpack.type", FT_UINT8, BASE_HEX|BASE_RANGE_STRING, RVALS(msgpack_types), 0x00, NULL, HFILL }

    },

    { &hf_msgpack_string_len,

      { "Length", "msgpack.string.len", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_bin,

      { "Bytes", "msgpack.bin", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_bin_len,

      { "Length", "msgpack.bin.len", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_uint_fix,

      { "Integer", "msgpack.integer.fixint", FT_UINT8, BASE_DEC, NULL, 0x7F, NULL, HFILL }

    },

    { &hf_msgpack_uint_8,

      { "Integer", "msgpack.integer.u8", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_uint_16,

      { "Integer", "msgpack.integer.u16", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_uint_32,

      { "Integer", "msgpack.integer.u32", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_uint_64,

      { "Integer", "msgpack.integer.u64", FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_int_fix,

      { "Integer", "msgpack.integer.fixint", FT_INT8, BASE_DEC, NULL, 0x1F, NULL, HFILL }

    },

    { &hf_msgpack_int_8,

      { "Integer", "msgpack.integer.8", FT_INT8, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_int_16,

      { "Integer", "msgpack.integer.16", FT_INT16, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_int_32,

      { "Integer", "msgpack.integer.32", FT_INT32, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_int_64,

      { "Integer", "msgpack.integer.64", FT_INT64, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_bool,

      { "Boolean", "msgpack.boolean", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_float,

      { "Float", "msgpack.float", FT_FLOAT, BASE_NONE, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_double,

      { "Double", "msgpack.double", FT_DOUBLE, BASE_NONE, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_ext_type,

      { "Ext type", "msgpack.ext.type", FT_INT8, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_ext_len,

      { "Length", "msgpack.ext.len", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }

    },

    { &hf_msgpack_ext_bytes,

      { "Ext", "msgpack.ext", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }

    }

  };

  static int* ett[] = {

    &ett_msgpack,

    &ett_msgpack_num,

    &ett_msgpack_string,

    &ett_msgpack_bin,

    &ett_msgpack_array,

    &ett_msgpack_map,

    &ett_msgpack_map_elem,

    &ett_msgpack_ext

  };

  static ei_register_info ei[] = {

    { &ei_msgpack_unsupported, { "msgpack.unsupported", PI_UNDECODED, PI_WARN, "Unsupported type", EXPFILL }}

  };

  proto_msgpack = proto_register_protocol("Message Pack", "MsgPack", "msgpack");

  msgpack_handle = register_dissector("msgpack", dissect_msgpack, proto_msgpack);

  expert_msgpack = expert_register_protocol(proto_msgpack);

  expert_register_field_array(expert_msgpack, ei, array_length(ei));

  proto_register_field_array(proto_msgpack, hf, array_length(hf));

  proto_register_subtree_array(ett, array_length(ett));

}

void proto_reg_handoff_msgpack(void)

{

  // If this is ever streamed (transported over TCP) we need to add recursion checks

  dissector_add_for_decode_as("udp.port", msgpack_handle);

}

/*

 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html

 *

 * Local variables:

 * c-basic-offset: 8

 * tab-width: 8

 * indent-tabs-mode: t

 * End:

 *

 * vi: set shiftwidth=8 tabstop=8 noexpandtab:

 * :indentSize=8:tabSize=8:noTabs=false:

 */