epan/dissectors/packet-aruba-adp.c

   1 /* packet-aruba-adp.c
   2  * Routines for Aruba ADP header disassembly
   3  *
   4  * $Id$
   5  *
   6  * Giles Scott < gscott <at> arubanetworks dot com>
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #include "config.h"
  28
  29 #include <glib.h>
  30 #include <epan/packet.h>
  31 #include <epan/addr_resolv.h>
  32
  33 #define UDP_PORT_ADP 8200
  34 #define ADP_REQUEST 1
  35 #define ADP_RESPONSE 2
  36
  37 void proto_register_aruba_adp(void);
  38 void proto_reg_handoff_aruba_adp(void);
  39
  40 static int proto_aruba_adp = -1;
  41 static gint ett_aruba_adp  = -1;
  42
  43 static int hf_adp_version  = -1;
  44 static int hf_adp_type     = -1;
  45 static int hf_adp_id       = -1;
  46 static int hf_adp_mac      = -1;
  47 static int hf_adp_switchip = -1;
  48
  49 static const value_string adp_type_val[] =
  50 {
  51   {1, "Request"},
  52   {2, "Response"},
  53   {0, NULL},
  54 };
  55
  56 static void
  57 dissect_aruba_adp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
  58 {
  59   proto_tree *ti = NULL;
  60   proto_tree *aruba_adp_tree = NULL;
  61   guint16 type;
  62   const gchar *mac_str;
  63   const gchar *switchip;
  64
  65
  66   col_set_str(pinfo->cinfo, COL_PROTOCOL, "ADP");
  67   col_clear(pinfo->cinfo, COL_INFO);
  68
  69
  70   if (tree) {
  71     ti = proto_tree_add_item(tree, proto_aruba_adp, tvb, 0, 0, ENC_NA);
  72     aruba_adp_tree = proto_item_add_subtree(ti, ett_aruba_adp);
  73
  74     proto_tree_add_item(aruba_adp_tree, hf_adp_version, tvb, 0, 2, ENC_BIG_ENDIAN);
  75   }
  76   type = tvb_get_ntohs(tvb, 2);
  77
  78   if (tree) {
  79     proto_tree_add_item(aruba_adp_tree, hf_adp_type, tvb, 2, 2, ENC_BIG_ENDIAN);
  80
  81     proto_tree_add_item(aruba_adp_tree, hf_adp_id, tvb, 4, 2, ENC_BIG_ENDIAN);
  82   }
  83
  84   switch(type){
  85     case ADP_REQUEST:
  86
  87       proto_tree_add_item(aruba_adp_tree, hf_adp_mac, tvb, 6, 6, ENC_NA);
  88       mac_str = tvb_ether_to_str(tvb, 6);
  89
  90       col_add_fstr(pinfo->cinfo, COL_INFO, "ADP Request Src MAC: %s", mac_str);
  91
  92       proto_item_append_text(ti, ", Request Src MAC: %s", mac_str);
  93       break;
  94
  95     case ADP_RESPONSE:
  96
  97       proto_tree_add_item(aruba_adp_tree, hf_adp_switchip, tvb, 6, 4, ENC_BIG_ENDIAN);
  98       switchip = tvb_ip_to_str(tvb, 6);
  99
 100         col_add_fstr(pinfo->cinfo, COL_INFO, "ADP Response Switch IP: %s", switchip);
 101
 102       proto_item_append_text(ti, ", Response Switch IP: %s", switchip);
 103       break;
 104
 105     default:
 106         break;
 107
 108   }
 109 }
 110
 111 void
 112 proto_register_aruba_adp(void)
 113 {
 114   static hf_register_info hf[] = {
 115     { &hf_adp_version,
 116     { "Version", "adp.version", FT_UINT16, BASE_DEC, NULL,0x0,
 117     "ADP version", HFILL}},
 118
 119     { &hf_adp_type,
 120     { "Type", "adp.type", FT_UINT16, BASE_DEC, VALS(adp_type_val), 0x0,
 121     "ADP type", HFILL}},
 122
 123     { &hf_adp_id,
 124     { "Transaction ID", "adp.id", FT_UINT16, BASE_DEC, NULL, 0x0,
 125     "ADP transaction ID", HFILL}},
 126
 127     { &hf_adp_mac,
 128     { "MAC address", "adp.mac", FT_ETHER, BASE_NONE, NULL, 0x0,
 129     NULL, HFILL}},
 130
 131     { &hf_adp_switchip,
 132     { "Switch IP", "adp.switch", FT_IPv4, BASE_NONE, NULL, 0x0,
 133     "Switch IP address", HFILL}},
 134
 135     };
 136
 137   static gint *ett[] = {
 138     &ett_aruba_adp,
 139   };
 140
 141   proto_aruba_adp = proto_register_protocol("Aruba Discovery Protocol",
 142                     "ADP", "adp");
 143   proto_register_field_array(proto_aruba_adp, hf, array_length(hf));
 144   proto_register_subtree_array(ett, array_length(ett));
 145 }
 146
 147
 148 void
 149 proto_reg_handoff_aruba_adp(void)
 150 {
 151   dissector_handle_t adp_handle;
 152
 153   adp_handle = create_dissector_handle(dissect_aruba_adp, proto_aruba_adp);
 154   dissector_add_uint("udp.port", UDP_PORT_ADP, adp_handle);
 155 }
 156
 157 /*
 158  * Editor modelines
 159  *
 160  * Local Variables:
 161  * c-basic-offset: 2
 162  * tab-width: 8
 163  * indent-tabs-mode: nil
 164  * End:
 165  *
 166  * ex: set shiftwidth=2 tabstop=8 expandtab:
 167  * :indentSize=2:tabSize=8:noTabs=true:
 168  */
 169