/* packet-msnlb.c

 * Routines for MS NLB dissection

 *

 * 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 <epan/packet.h>

#include <epan/etypes.h>

#include <epan/to_str.h>

#include <epan/tfs.h>

#include <wsutil/array.h>

#include "packet-smb-common.h"

void proto_register_msnlb(void);

void proto_reg_handoff_msnlb(void);

static dissector_handle_t msnlb_handle;

/* Initialize the protocol and registered fields */

static int proto_msnlb;

static int hf_msnlb_signature;

static int hf_msnlb_version;

static int hf_msnlb_uniquehostid;

static int hf_msnlb_clusterip;

static int hf_msnlb_dedicatedip;

static int hf_msnlb_signature_data;

static int hf_msnlb_myhostid;

static int hf_msnlb_defaulthostid;

static int hf_msnlb_convergencestate;

static int hf_msnlb_numberofportrules;

static int hf_msnlb_uniquehostcode;

static int hf_msnlb_packetshandled;

static int hf_msnlb_teamingcfg;

static int hf_msnlb_teamingcfg_reserved;

static int hf_msnlb_teamingcfg_xorclusterip;

static int hf_msnlb_teamingcfg_numberofparticipants;

static int hf_msnlb_teamingcfg_hashing;

static int hf_msnlb_teamingcfg_master;

static int hf_msnlb_teamingcfg_active;

static int hf_msnlb_reserved;

static int hf_msnlb_portruleconfiguration;

static int hf_msnlb_portruleconfiguration_data;

static int hf_msnlb_currentmap;

static int hf_msnlb_currentmap_data;

static int hf_msnlb_newmap;

static int hf_msnlb_newmap_data;

static int hf_msnlb_idlemap;

static int hf_msnlb_idlemap_data;

static int hf_msnlb_readymap;

static int hf_msnlb_readymap_data;

static int hf_msnlb_loadweights;

static int hf_msnlb_loadweights_data;

static int hf_msnlb_reserved2;

static int hf_msnlb_reserved2_data;

static int hf_msnlb_extended_hb;

static int hf_msnlb_extended_hb_type;

static int hf_msnlb_length;

static int hf_msnlb_address_family;

static int hf_msnlb_host_name;

static int hf_msnlb_host_ipv4;

static int hf_msnlb_host_ipv6;

static int hf_msnlb_host_unknown;

static int hf_msnlb_padding;

static int hf_msnlb_extended_hb_unknown;

static int ett_msnlb;

static int ett_msnlb_signature;

static int ett_msnlb_teamingcfg;

static int ett_msnlb_portruleconfiguration;

static int ett_msnlb_currentmap;

static int ett_msnlb_newmap;

static int ett_msnlb_idlemap;

static int ett_msnlb_readymap;

static int ett_msnlb_loadweights;

static int ett_msnlb_reserved;

static int ett_msnlb_extended_hb;

#define NLB_CLUSTER_MEMBERSHIP_HB 0xC0DE01BF

#define NLB_EXTENDED_HB 0xC0DE01C0

#define NLB_RELIABLE_PROTOCOL 0xC0DE01DE

static const value_string nlb_signature_vals[] = {

  { NLB_CLUSTER_MEMBERSHIP_HB, "NLB Cluster Membership HeartBeat" },

  { NLB_EXTENDED_HB, "NLB Extended HeartBeat" },

  { NLB_RELIABLE_PROTOCOL, "NLB Reliable Protocol" },

  { 0, NULL }

};

static const value_string nlb_extended_hb_type_vals[] = {

  { 1, "Host name" },

  { 2, "IP Address" },

  { 0, NULL }

};

static const value_string nlb_address_family_vals[] = {

  { 0x2, "IPv4" },

  { 0x17, "IPv6" },

  { 0, NULL }

};

static true_false_string tfs_reverse_normal = { "Reverse", "Normal" };

static void

version_base_custom(char *result, uint32_t version)

{

  snprintf(result, ITEM_LABEL_LENGTH, "%d.%d", (version  >> 8) & 0xFF, (version & 0xFF));

}

static int

dissect_msnlb(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)

{

  proto_item  *ti;

  proto_tree  *msnlb_tree = NULL, *msnlb_subtree;

  unsigned    offset = 0;

  uint32_t    signature;

  col_set_str(pinfo->cinfo, COL_PROTOCOL, "MS NLB");

  col_set_str(pinfo->cinfo, COL_INFO, "MS NLB heartbeat");

  if (tree) {

    ti = proto_tree_add_item(tree, proto_msnlb, tvb, 0, -1, ENC_NA);

    msnlb_tree = proto_item_add_subtree(ti, ett_msnlb);

  }

  proto_tree_add_item_ret_uint(msnlb_tree, hf_msnlb_signature, tvb, offset, 4, ENC_LITTLE_ENDIAN, &signature);

  offset += 4;

  proto_tree_add_item(msnlb_tree, hf_msnlb_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);

  offset += 4;

  proto_tree_add_item(msnlb_tree, hf_msnlb_uniquehostid, tvb, offset, 4, ENC_LITTLE_ENDIAN);

  offset += 4;

  proto_tree_add_item(msnlb_tree, hf_msnlb_clusterip, tvb, offset, 4, ENC_BIG_ENDIAN);

  offset += 4;

  proto_tree_add_item(msnlb_tree, hf_msnlb_dedicatedip, tvb, offset, 4, ENC_BIG_ENDIAN);

  offset += 4;

  ti = proto_tree_add_item(msnlb_tree, hf_msnlb_signature_data, tvb, offset, -1, ENC_NA);

  proto_item_append_text(ti, " - %s", val_to_str(pinfo->pool, signature, nlb_signature_vals, "Unknown (%u)"));

  col_append_fstr(pinfo->cinfo, COL_INFO, " - %s", val_to_str(pinfo->pool, signature, nlb_signature_vals, "Unknown (%u)"));

  msnlb_subtree = proto_item_add_subtree(ti, ett_msnlb_signature);

  switch(signature){

    case NLB_CLUSTER_MEMBERSHIP_HB:{

      uint32_t i;

      proto_tree *teamingcfg_tree, *subtree;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_myhostid, tvb, offset, 2, ENC_LITTLE_ENDIAN);

      offset += 2;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_defaulthostid, tvb, offset, 2, ENC_LITTLE_ENDIAN);

      offset += 2;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_convergencestate, tvb, offset, 2, ENC_LITTLE_ENDIAN);

      offset += 2;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_numberofportrules, tvb, offset, 2, ENC_LITTLE_ENDIAN);

      offset += 2;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_uniquehostcode, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      offset += 4;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_packetshandled, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      offset += 4;

      /* Teaming configuration/state code, which is of the form:

         -------------------------------------

         |XXXXXXXX|PPPPPPPP|PPPPPPPP|NNNNNHMA|

         -------------------------------------

         X: Reserved

         P: XOR of the least significant 16 bits of each participant's cluster IP address

         N: Number of participants

         H: Hashing (Reverse=1, Normal=0)

         M: Master (Yes=1, No=0)

         A: Teaming active (Yes=1, No=0)

      */

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_teamingcfg, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      teamingcfg_tree = proto_item_add_subtree(ti, ett_msnlb_teamingcfg);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_xorclusterip, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_numberofparticipants, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_hashing, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_master, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      proto_tree_add_item(teamingcfg_tree, hf_msnlb_teamingcfg_active, tvb, offset, 4, ENC_LITTLE_ENDIAN);

      offset += 4;

      proto_tree_add_item(msnlb_subtree, hf_msnlb_reserved, tvb, offset, 4, ENC_NA);

      offset += 4;

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_portruleconfiguration, tvb, offset, 4*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_portruleconfiguration);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_portruleconfiguration_data, tvb, offset, 4, ENC_LITTLE_ENDIAN);

        offset += 4;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_currentmap, tvb, offset, 8*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_currentmap);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_currentmap_data, tvb, offset, 8, ENC_LITTLE_ENDIAN);

        offset += 8;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_newmap, tvb, offset, 8*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_newmap);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_newmap_data, tvb, offset, 8, ENC_LITTLE_ENDIAN);

        offset += 8;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_idlemap, tvb, offset, 8*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_idlemap);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_idlemap_data, tvb, offset, 8, ENC_LITTLE_ENDIAN);

        offset += 8;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_readymap, tvb, offset, 8*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_readymap);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_readymap_data, tvb, offset, 8, ENC_LITTLE_ENDIAN);

        offset += 8;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_loadweights, tvb, offset, 4*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_loadweights);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_loadweights_data, tvb, offset, 4, ENC_LITTLE_ENDIAN);

        offset += 4;

      }

      ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_reserved2, tvb, offset, 4*33, ENC_NA);

      subtree = proto_item_add_subtree(ti, ett_msnlb_reserved);

      for(i = 1; i <= 33; i++){

        proto_tree_add_item(subtree, hf_msnlb_reserved2_data, tvb, offset, 4, ENC_LITTLE_ENDIAN);

        offset += 4;

      }

    }

    break;

    case NLB_EXTENDED_HB:{

      uint8_t hb_type;

      proto_tree *hb_tree;

      while (tvb_reported_length_remaining(tvb, offset) > 0) {

        ti = proto_tree_add_item(msnlb_subtree, hf_msnlb_extended_hb, tvb, offset, -1, ENC_NA);

        hb_tree = proto_item_add_subtree(ti, ett_msnlb_extended_hb);

        proto_tree_add_item_ret_uint8(hb_tree, hf_msnlb_extended_hb_type, tvb, offset, 1, ENC_LITTLE_ENDIAN, &hb_type);

        proto_item_append_text(ti, " - %s", val_to_str(pinfo->pool, hb_type, nlb_extended_hb_type_vals, "Unknown (%u)"));

        offset += 1;

        switch(hb_type){

          case 1:{ /* FQDN */

            char *fqdn = NULL;

            proto_tree_add_item(hb_tree, hf_msnlb_length, tvb, offset, 1, ENC_LITTLE_ENDIAN);

            offset += 1;

            proto_tree_add_item(hb_tree, hf_msnlb_reserved, tvb, offset, 2, ENC_NA);

            offset += 2;

            proto_tree_add_item(hb_tree, hf_msnlb_reserved, tvb, offset, 4, ENC_NA);

            offset += 4;

            offset = display_unicode_string(tvb, pinfo, hb_tree, offset, hf_msnlb_host_name, &fqdn);

            offset += 6;

            proto_item_append_text(ti, ": %s", fqdn);

            }

          break;

          case 2:{ /* IP */

            uint16_t address_family;

            proto_tree_add_item(hb_tree, hf_msnlb_length, tvb, offset, 1, ENC_LITTLE_ENDIAN);

            offset += 1;

            proto_tree_add_item(hb_tree, hf_msnlb_reserved, tvb, offset, 2, ENC_NA);

            offset += 2;

            proto_tree_add_item(hb_tree, hf_msnlb_reserved, tvb, offset, 4, ENC_NA);

            offset += 4;

            proto_tree_add_item_ret_uint16(hb_tree, hf_msnlb_address_family, tvb, offset, 2, ENC_LITTLE_ENDIAN, &address_family);

            offset += 2;

            switch(address_family){

              case 0x2: /* IPv4 */

                proto_tree_add_item(hb_tree, hf_msnlb_host_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);

                proto_item_append_text(ti, ": %s", tvb_ip_to_str(pinfo->pool, tvb, offset));

                offset += 4;

                break;

              case 0x17: /* IPv6 */

                proto_tree_add_item(hb_tree, hf_msnlb_host_ipv6, tvb, offset, 16, ENC_NA);

                proto_item_append_text(ti, ": %s", tvb_ip6_to_str(pinfo->pool, tvb, offset));

                offset += 16;

                break;

              default: /* Unknown */

                proto_tree_add_item(hb_tree, hf_msnlb_host_unknown, tvb, offset, -1, ENC_NA);

                offset += tvb_reported_length_remaining(tvb, offset);

              break;

            }

            proto_tree_add_item(hb_tree, hf_msnlb_padding, tvb, offset, -1, ENC_NA);

            offset += tvb_reported_length_remaining(tvb, offset);

          }

          break;

          default: /* default ?! */

            proto_tree_add_item(hb_tree, hf_msnlb_extended_hb_unknown, tvb, offset, -1, ENC_NA);

            offset += tvb_reported_length_remaining(tvb, offset);

          break;

        }

      }

    }

    break;

    default:

    break;

  }

  return tvb_captured_length(tvb);

}

void

proto_register_msnlb(void)

{

  static hf_register_info hf[] = {

    { &hf_msnlb_signature,

      { "Signature", "msnlb.signature",

        FT_UINT32, BASE_HEX,

        VALS(nlb_signature_vals), 0,

        NULL, HFILL }

    },

    { &hf_msnlb_version,

      { "Version", "msnlb.version",

        FT_UINT32, BASE_CUSTOM,

        CF_FUNC(version_base_custom), 0,

        NULL, HFILL }

    },

    { &hf_msnlb_uniquehostid,

      { "Unique Host ID", "msnlb.unique_host_id",

        FT_UINT32, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_clusterip,

      { "Cluster IP", "msnlb.cluster_ip",

        FT_IPv4, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_dedicatedip,

      { "Host IP", "msnlb.host_ip",

        FT_IPv4, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_signature_data,

      { "Signature Data", "msnlb.signature_data",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_myhostid,

      { "My Host id", "msnlb.my_host_ip",

        FT_UINT16, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_defaulthostid,

      { "Default Host id", "msnlb.default_host_ip",

        FT_UINT16, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_convergencestate,

      { "Convergence State", "msnlb.convergence_state",

        FT_UINT16, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_numberofportrules,

      { "Number of Port Rules", "msnlb.number_of_port_rules",

        FT_UINT16, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_uniquehostcode,

      { "Unique Host Code", "msnlb.unique_host_code",

        FT_UINT32, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_packetshandled,

      { "Packets Handled", "msnlb.packets_handled",

        FT_UINT32, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg,

      { "Teaming Configuration", "msnlb.teamincfg",

        FT_UINT32, BASE_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg_reserved,

      { "Reserved", "msnlb.teamincfg.reserved",

        FT_UINT32, BASE_HEX,

        NULL, 0xFF000000,

        "Must be zero", HFILL }

    },

    { &hf_msnlb_teamingcfg_xorclusterip,

      { "XOR of the least significant 16 bits of each participant's cluster IP address", "msnlb.teamingcfg.xorclusterip",

        FT_UINT32, BASE_HEX,

        NULL, 0x00FFFF00,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg_numberofparticipants,

      { "Number of Participants", "msnlb.teamingcfg.number_of_participants",

        FT_UINT32, BASE_HEX,

        NULL, 0x000000F8,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg_hashing,

      { "Hashing", "msnlb.teamingcfg.hashing",

        FT_BOOLEAN, 32,

        TFS(&tfs_reverse_normal), 0x00000004,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg_master,

      { "Master", "msnlb.teamingcfg.master",

        FT_BOOLEAN, 32,

        NULL, 0x00000002,

        NULL, HFILL }

    },

    { &hf_msnlb_teamingcfg_active,

      { "Active", "msnlb.teamingcfg.active",

        FT_BOOLEAN, 32,

        NULL, 0x00000001,

        NULL, HFILL }

    },

    { &hf_msnlb_reserved,

      { "Reserved", "msnlb.reserved",

        FT_BYTES, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_portruleconfiguration,

      { "Port Rule Configuration", "msnlb.portruleconfiguration",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_portruleconfiguration_data,

      { "Port Rule Configuration Data", "msnlb.portruleconfiguration.data",

        FT_UINT32, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_currentmap,

      { "Current Map", "msnlb.currentmap",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_currentmap_data,

      { "Current Map Data", "msnlb.currentmap.data",

        FT_UINT64, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_newmap,

      { "New Map", "msnlb.newmap",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_newmap_data,

      { "New Map Data", "msnlb.newmap.data",

        FT_UINT64, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_idlemap,

      { "Idle Map", "msnlb.idlemap",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_idlemap_data,

      { "Idle Map Data", "msnlb.idlemap.data",

        FT_UINT64, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_readymap,

      { "Ready Map", "msnlb.readymap",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_readymap_data,

      { "Ready Map Data", "msnlb.readymap.data",

        FT_UINT64, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_loadweights,

      { "Load Weights", "msnlb.loadweights",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_loadweights_data,

      { "Load Weights Data", "msnlb.loadweights.data",

        FT_UINT32, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_reserved2,

      { "Reserved", "msnlb.reserved2",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_reserved2_data,

      { "Reserved Data", "msnlb.reserved2.data",

        FT_UINT32, BASE_DEC_HEX,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_extended_hb,

      { "Extended HB", "msnlb.extended_hb",

        FT_NONE, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_extended_hb_type,

      { "Type", "msnlb.extended_hb.type",

        FT_UINT8, BASE_DEC,

        VALS(nlb_extended_hb_type_vals), 0,

        NULL, HFILL }

    },

    { &hf_msnlb_length,

      { "Length", "msnlb.length",

        FT_UINT8, BASE_DEC,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_address_family,

      { "Address Family", "msnlb.address_family",

        FT_UINT16, BASE_HEX_DEC,

        VALS(nlb_address_family_vals), 0,

        NULL, HFILL }

    },

    { &hf_msnlb_host_name,

      { "Host name", "msnlb.host_name",

        FT_STRING, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_host_ipv4,

      { "Host IPv4", "msnlb.host_ipv4",

        FT_IPv4, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_host_ipv6,

      { "Host IPv6", "msnlb.host_ipv6",

        FT_IPv6, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_host_unknown,

      { "Host Unknown", "msnlb.host_unknown",

        FT_BYTES, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_padding,

      { "Padding", "msnlb.padding",

        FT_BYTES, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    },

    { &hf_msnlb_extended_hb_unknown,

      { "Unknown HB Data", "msnlb.extended_hb.unknown",

        FT_BYTES, BASE_NONE,

        NULL, 0,

        NULL, HFILL }

    }

  };

  static int *ett[] = {

    &ett_msnlb,

    &ett_msnlb_signature,

    &ett_msnlb_teamingcfg,

    &ett_msnlb_portruleconfiguration,

    &ett_msnlb_currentmap,

    &ett_msnlb_newmap,

    &ett_msnlb_idlemap,

    &ett_msnlb_readymap,

    &ett_msnlb_loadweights,

    &ett_msnlb_reserved,

    &ett_msnlb_extended_hb

  };

  proto_msnlb = proto_register_protocol("MS Network Load Balancing", "MS NLB", "msnlb");

  proto_register_field_array(proto_msnlb, hf, array_length(hf));

  proto_register_subtree_array(ett, array_length(ett));

  msnlb_handle = register_dissector("msnlb", dissect_msnlb, proto_msnlb);

}

void

proto_reg_handoff_msnlb(void)

{

  dissector_add_uint("ethertype", ETHERTYPE_MS_NLB_HEARTBEAT, msnlb_handle);

}

/*

 * Editor modelines

 *

 * Local Variables:

 * c-basic-offset: 2

 * tab-width: 8

 * indent-tabs-mode: nil

 * End:

 *

 * ex: set shiftwidth=2 tabstop=8 expandtab:

 * :indentSize=2:tabSize=8:noTabs=true:

 */