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/* packet-dsarsp.c
* Routines for Dynamic Service Addition Response dissection
* Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
void proto_register_docsis_dsarsp(void);
void proto_reg_handoff_docsis_dsarsp(void);
/* Initialize the protocol and registered fields */
static int proto_docsis_dsarsp = -1;
static int hf_docsis_dsarsp_tranid = -1;
static int hf_docsis_dsarsp_response = -1;
static dissector_handle_t docsis_tlv_handle;
/* Initialize the subtree pointers */
static gint ett_docsis_dsarsp = -1;
extern value_string docsis_conf_code[];
/* Dissection */
static int
dissect_dsarsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
{
proto_item *it;
proto_tree *dsarsp_tree = NULL;
guint16 transid;
guint8 response;
tvbuff_t *next_tvb;
transid = tvb_get_ntohs (tvb, 0);
response = tvb_get_guint8 (tvb, 2);
col_add_fstr (pinfo->cinfo, COL_INFO,
"Dynamic Service Add Response ID = %u (%s)", transid,
val_to_str (response, docsis_conf_code, "%d"));
if (tree)
{
it =
proto_tree_add_protocol_format (tree, proto_docsis_dsarsp, tvb, 0, -1,
"DSA Response");
dsarsp_tree = proto_item_add_subtree (it, ett_docsis_dsarsp);
proto_tree_add_item (dsarsp_tree, hf_docsis_dsarsp_tranid, tvb, 0, 2,
ENC_BIG_ENDIAN);
proto_tree_add_item (dsarsp_tree, hf_docsis_dsarsp_response, tvb, 2, 1,
ENC_BIG_ENDIAN);
}
/* Call dissector for Appendix C TLV's */
next_tvb = tvb_new_subset_remaining (tvb, 3);
call_dissector (docsis_tlv_handle, next_tvb, pinfo, dsarsp_tree);
return tvb_captured_length(tvb);
}
/* Register the protocol with Wireshark */
void
proto_register_docsis_dsarsp (void)
{
static hf_register_info hf[] = {
{&hf_docsis_dsarsp_tranid,
{"Transaction Id", "docsis_dsarsp.tranid",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Service Identifier", HFILL}
},
{&hf_docsis_dsarsp_response,
{"Confirmation Code", "docsis_dsarsp.confcode",
FT_UINT8, BASE_DEC, VALS (docsis_conf_code), 0x0,
NULL, HFILL}
},
};
static gint *ett[] = {
&ett_docsis_dsarsp,
};
proto_docsis_dsarsp =
proto_register_protocol ("DOCSIS Dynamic Service Addition Response",
"DOCSIS DSA-RSP", "docsis_dsarsp");
proto_register_field_array (proto_docsis_dsarsp, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
new_register_dissector ("docsis_dsarsp", dissect_dsarsp, proto_docsis_dsarsp);
}
void
proto_reg_handoff_docsis_dsarsp (void)
{
dissector_handle_t docsis_dsarsp_handle;
docsis_dsarsp_handle = find_dissector ("docsis_dsarsp");
docsis_tlv_handle = find_dissector ("docsis_tlv");
dissector_add_uint ("docsis_mgmt", 0x10, docsis_dsarsp_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* 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:
*/
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