/* packet-dsdrsp.c
 * Routines for Dynamic Service Delete Response dissection
 * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
 *
 * $Id: packet-dsdrsp.c 32400 2010-04-06 15:45:11Z morriss $
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <epan/packet.h>

/* Initialize the protocol and registered fields */
static int proto_docsis_dsdrsp = -1;
static int hf_docsis_dsdrsp = -1;
static int hf_docsis_dsdrsp_tranid = -1;
static int hf_docsis_dsdrsp_confcode = -1;
static int hf_docsis_dsdrsp_rsvd = -1;

extern value_string docsis_conf_code[];

/* Initialize the subtree pointers */
static gint ett_docsis_dsdrsp = -1;

/* Code to actually dissect the packets */
static void
dissect_dsdrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{

  proto_item *it;
  proto_tree *dsdrsp_tree;
  guint16 tranid;
  guint8 confcode;

  tranid = tvb_get_ntohs (tvb, 0);
  confcode = tvb_get_guint8 (tvb, 2);

  col_add_fstr (pinfo->cinfo, COL_INFO,
	    "Dynamic Service Delete Response Tran id = %u (%s)",
	    tranid, val_to_str (confcode, docsis_conf_code, "%d"));

  if (tree)
    {
      it =
	proto_tree_add_protocol_format (tree, proto_docsis_dsdrsp, tvb, 0, -1,
					"DSD Response");
      dsdrsp_tree = proto_item_add_subtree (it, ett_docsis_dsdrsp);
      proto_tree_add_item (dsdrsp_tree, hf_docsis_dsdrsp_tranid, tvb, 0, 2,
			   FALSE);
      proto_tree_add_item (dsdrsp_tree, hf_docsis_dsdrsp_confcode, tvb, 2, 1,
			   FALSE);
      proto_tree_add_item (dsdrsp_tree, hf_docsis_dsdrsp_rsvd, tvb, 3, 1,
			   FALSE);
    }

}




/* Register the protocol with Wireshark */

/* this format is require because a script is used to build the C function
   that calls all the protocol registration.
*/


void
proto_register_docsis_dsdrsp (void)
{

/* Setup list of header fields  See Section 1.6.1 for details*/
  static hf_register_info hf[] = {
    {&hf_docsis_dsdrsp,
     {"Dynamic Service Delete Response", "docsis_dsdrsp",
      FT_BYTES, BASE_NONE, NULL, 0x0,
      NULL, HFILL}
     },
    {&hf_docsis_dsdrsp_tranid,
     {"Transaction Id", "docsis_dsdrsp.tranid",
      FT_UINT16, BASE_DEC, NULL, 0x0,
      NULL, HFILL}
     },
    {&hf_docsis_dsdrsp_confcode,
     {"Confirmation Code", "docsis_dsdrsp.confcode",
      FT_UINT8, BASE_DEC, VALS (docsis_conf_code), 0x0,
      NULL, HFILL}
     },
    {&hf_docsis_dsdrsp_rsvd,
     {"Reserved", "docsis_dsdrsp.rsvd",
      FT_UINT8, BASE_DEC, NULL, 0x0,
      NULL, HFILL}
     },
  };

/* Setup protocol subtree array */
  static gint *ett[] = {
    &ett_docsis_dsdrsp,
  };

/* Register the protocol name and description */
  proto_docsis_dsdrsp =
    proto_register_protocol ("DOCSIS Dynamic Service Delete Response",
			     "DOCSIS DSD-RSP", "docsis_dsdrsp");

/* Required function calls to register the header fields and subtrees used */
  proto_register_field_array (proto_docsis_dsdrsp, hf, array_length (hf));
  proto_register_subtree_array (ett, array_length (ett));

  register_dissector ("docsis_dsdrsp", dissect_dsdrsp, proto_docsis_dsdrsp);
}


/* If this dissector uses sub-dissector registration add a registration routine.
   This format is required because a script is used to find these routines and
   create the code that calls these routines.
*/
void
proto_reg_handoff_docsis_dsdrsp (void)
{
  dissector_handle_t docsis_dsdrsp_handle;

  docsis_dsdrsp_handle = find_dissector ("docsis_dsdrsp");
  dissector_add ("docsis_mgmt", 0x16, docsis_dsdrsp_handle);

}
