2 * Routines for Dynamic Service Delete Request dissection
3 * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
5 * $Id: packet-dsdreq.c,v 1.5 2003/05/28 14:52:52 gerald Exp $
7 * Ethereal - Network traffic analyzer
8 * By Gerald Combs <gerald@ethereal.com>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #include "plugins/plugin_api.h"
31 #include "plugins/plugin_api_defs.h"
32 #include "moduleinfo.h"
40 #include <epan/packet.h>
42 /* Initialize the protocol and registered fields */
43 static int proto_docsis_dsdreq = -1;
44 static int hf_docsis_dsdreq = -1;
45 static int hf_docsis_dsdreq_tranid = -1;
46 static int hf_docsis_dsdreq_rsvd = -1;
47 static int hf_docsis_dsdreq_sfid = -1;
49 static dissector_handle_t docsis_tlv_handle;
52 /* Initialize the subtree pointers */
53 static gint ett_docsis_dsdreq = -1;
55 /* Code to actually dissect the packets */
57 dissect_dsdreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
61 proto_tree *dsdreq_tree;
66 transid = tvb_get_ntohs (tvb, 0);
67 tlv_data_len = tvb_length_remaining (tvb, 8);
69 if (check_col (pinfo->cinfo, COL_INFO))
71 col_clear (pinfo->cinfo, COL_INFO);
72 col_add_fstr (pinfo->cinfo, COL_INFO,
73 "Dynamic Service Delete Request Tran-id = %u", transid);
78 proto_tree_add_protocol_format (tree, proto_docsis_dsdreq, tvb, 0,
79 tvb_length_remaining (tvb, 0),
81 dsdreq_tree = proto_item_add_subtree (it, ett_docsis_dsdreq);
82 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_tranid, tvb, 0, 2,
84 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_rsvd, tvb, 2, 2,
86 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_sfid, tvb, 4, 4,
89 /* Call Dissector for Appendix C TLV's */
90 next_tvb = tvb_new_subset (tvb, 8, tlv_data_len, tlv_data_len);
91 call_dissector (docsis_tlv_handle, next_tvb, pinfo, dsdreq_tree);
98 /* Register the protocol with Ethereal */
100 /* this format is require because a script is used to build the C function
101 that calls all the protocol registration.
106 proto_register_docsis_dsdreq (void)
109 /* Setup list of header fields See Section 1.6.1 for details*/
110 static hf_register_info hf[] = {
112 {"Dynamic Service Delete Request", "docsis.dsdreq",
113 FT_BYTES, BASE_HEX, NULL, 0x0,
114 "Dynamic Service Delete Request", HFILL}
116 {&hf_docsis_dsdreq_tranid,
117 {"Transaction Id", "docsis.dsdreq.tranid",
118 FT_UINT16, BASE_DEC, NULL, 0x0,
119 "Transaction Id", HFILL}
121 {&hf_docsis_dsdreq_rsvd,
122 {"Reserved", "docsis.dsdreq.rsvd",
123 FT_UINT16, BASE_HEX, NULL, 0x0,
126 {&hf_docsis_dsdreq_sfid,
127 {"Service Flow ID", "docsis.dsdreq.sfid",
128 FT_UINT32, BASE_DEC, NULL, 0x0,
129 "Service Flow Id", HFILL}
133 /* Setup protocol subtree array */
134 static gint *ett[] = {
138 /* Register the protocol name and description */
139 proto_docsis_dsdreq =
140 proto_register_protocol ("DOCSIS Dynamic Service Delete Request",
141 "DOCSIS DSD-REQ", "docsis_dsdreq");
143 /* Required function calls to register the header fields and subtrees used */
144 proto_register_field_array (proto_docsis_dsdreq, hf, array_length (hf));
145 proto_register_subtree_array (ett, array_length (ett));
147 register_dissector ("docsis_dsdreq", dissect_dsdreq, proto_docsis_dsdreq);
151 /* If this dissector uses sub-dissector registration add a registration routine.
152 This format is required because a script is used to find these routines and
153 create the code that calls these routines.
156 proto_reg_handoff_docsis_dsdreq (void)
158 dissector_handle_t docsis_dsdreq_handle;
160 docsis_dsdreq_handle = find_dissector ("docsis_dsdreq");
161 docsis_tlv_handle = find_dissector ("docsis_tlv");
162 dissector_add ("docsis_mgmt", 0x15, docsis_dsdreq_handle);