2 * Routines for Dynamic Service Delete Request dissection
3 * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
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 "moduleinfo.h"
38 #include <epan/packet.h>
40 /* Initialize the protocol and registered fields */
41 static int proto_docsis_dsdreq = -1;
42 static int hf_docsis_dsdreq = -1;
43 static int hf_docsis_dsdreq_tranid = -1;
44 static int hf_docsis_dsdreq_rsvd = -1;
45 static int hf_docsis_dsdreq_sfid = -1;
47 static dissector_handle_t docsis_tlv_handle;
50 /* Initialize the subtree pointers */
51 static gint ett_docsis_dsdreq = -1;
53 /* Code to actually dissect the packets */
55 dissect_dsdreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
59 proto_tree *dsdreq_tree;
63 transid = tvb_get_ntohs (tvb, 0);
65 if (check_col (pinfo->cinfo, COL_INFO))
67 col_clear (pinfo->cinfo, COL_INFO);
68 col_add_fstr (pinfo->cinfo, COL_INFO,
69 "Dynamic Service Delete Request Tran-id = %u", transid);
74 proto_tree_add_protocol_format (tree, proto_docsis_dsdreq, tvb, 0, -1,
76 dsdreq_tree = proto_item_add_subtree (it, ett_docsis_dsdreq);
77 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_tranid, tvb, 0, 2,
79 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_rsvd, tvb, 2, 2,
81 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_sfid, tvb, 4, 4,
84 /* Call Dissector for Appendix C TLV's */
85 next_tvb = tvb_new_subset (tvb, 8, -1, -1);
86 call_dissector (docsis_tlv_handle, next_tvb, pinfo, dsdreq_tree);
93 /* Register the protocol with Wireshark */
95 /* this format is require because a script is used to build the C function
96 that calls all the protocol registration.
101 proto_register_docsis_dsdreq (void)
104 /* Setup list of header fields See Section 1.6.1 for details*/
105 static hf_register_info hf[] = {
107 {"Dynamic Service Delete Request", "docsis_dsdreq",
108 FT_BYTES, BASE_HEX, NULL, 0x0,
109 "Dynamic Service Delete Request", HFILL}
111 {&hf_docsis_dsdreq_tranid,
112 {"Transaction Id", "docsis_dsdreq.tranid",
113 FT_UINT16, BASE_DEC, NULL, 0x0,
114 "Transaction Id", HFILL}
116 {&hf_docsis_dsdreq_rsvd,
117 {"Reserved", "docsis_dsdreq.rsvd",
118 FT_UINT16, BASE_HEX, NULL, 0x0,
121 {&hf_docsis_dsdreq_sfid,
122 {"Service Flow ID", "docsis_dsdreq.sfid",
123 FT_UINT32, BASE_DEC, NULL, 0x0,
124 "Service Flow Id", HFILL}
128 /* Setup protocol subtree array */
129 static gint *ett[] = {
133 /* Register the protocol name and description */
134 proto_docsis_dsdreq =
135 proto_register_protocol ("DOCSIS Dynamic Service Delete Request",
136 "DOCSIS DSD-REQ", "docsis_dsdreq");
138 /* Required function calls to register the header fields and subtrees used */
139 proto_register_field_array (proto_docsis_dsdreq, hf, array_length (hf));
140 proto_register_subtree_array (ett, array_length (ett));
142 register_dissector ("docsis_dsdreq", dissect_dsdreq, proto_docsis_dsdreq);
146 /* If this dissector uses sub-dissector registration add a registration routine.
147 This format is required because a script is used to find these routines and
148 create the code that calls these routines.
151 proto_reg_handoff_docsis_dsdreq (void)
153 dissector_handle_t docsis_dsdreq_handle;
155 docsis_dsdreq_handle = find_dissector ("docsis_dsdreq");
156 docsis_tlv_handle = find_dissector ("docsis_tlv");
157 dissector_add ("docsis_mgmt", 0x15, docsis_dsdreq_handle);