2 * Routines for DOCSIS 3.0 Dynamic Bonding Change Request Message dissection.
3 * Copyright 2010, Guido Reismueller <g.reismueller[AT]avm.de>
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 <epan/packet.h>
32 /* Initialize the protocol and registered fields */
33 static int proto_docsis_dbcreq = -1;
34 static int hf_docsis_dbcreq_tranid = -1;
35 static int hf_docsis_dbcreq_number_of_fragments = -1;
36 static int hf_docsis_dbcreq_fragment_sequence_number = -1;
37 static dissector_handle_t docsis_tlv_handle;
39 /* Initialize the subtree pointers */
40 static gint ett_docsis_dbcreq = -1;
42 /* Code to actually dissect the packets */
44 dissect_dbcreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
46 proto_item *dbcreq_item;
47 proto_tree *dbcreq_tree = NULL;
51 transid = tvb_get_ntohs (tvb, 0);
53 col_clear (pinfo->cinfo, COL_INFO);
54 col_add_fstr (pinfo->cinfo, COL_INFO,
55 "Dynamic Bonding Change Request: Tran-Id = %u", transid);
59 dbcreq_item = proto_tree_add_protocol_format (tree, proto_docsis_dbcreq,
61 "Dynamic Bonding Change Request");
62 dbcreq_tree = proto_item_add_subtree (dbcreq_item, ett_docsis_dbcreq);
63 proto_tree_add_item (dbcreq_tree, hf_docsis_dbcreq_tranid,
65 proto_tree_add_item( dbcreq_tree, hf_docsis_dbcreq_number_of_fragments,
67 proto_tree_add_item( dbcreq_tree, hf_docsis_dbcreq_fragment_sequence_number ,
70 /* Call Dissector for Appendix C TLV's */
71 next_tvb = tvb_new_subset_remaining (tvb, 4);
72 call_dissector (docsis_tlv_handle, next_tvb, pinfo, dbcreq_tree);
75 /* Register the protocol with Wireshark */
78 * this format is required because a script is used to build the C function
79 * that calls all the protocol registration.
82 proto_register_docsis_dbcreq (void)
84 /* Setup list of header fields See Section 1.6.1 for details*/
85 static hf_register_info hf[] = {
86 {&hf_docsis_dbcreq_tranid,
87 {"Transaction Id", "docsis_dbcreq.tranid",
88 FT_UINT16, BASE_DEC, NULL, 0x0,
91 {&hf_docsis_dbcreq_number_of_fragments,
92 {"Number of Fragments", "docsis_dbcreq.number_of_fragments",
93 FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
96 {&hf_docsis_dbcreq_fragment_sequence_number,
97 {"Fragment Seq No", "docsis_dbcreq.fragment_sequence_number",
98 FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
103 /* Setup protocol subtree array */
104 static gint *ett[] = {
108 /* Register the protocol name and description */
109 proto_docsis_dbcreq = proto_register_protocol ("DOCSIS Dynamic Bonding Change Request",
113 /* Required function calls to register the header fields and subtrees used */
114 proto_register_field_array (proto_docsis_dbcreq, hf, array_length (hf));
115 proto_register_subtree_array (ett, array_length (ett));
117 register_dissector ("docsis_dbcreq", dissect_dbcreq, proto_docsis_dbcreq);
121 /* If this dissector uses sub-dissector registration add a registration routine.
122 This format is required because a script is used to find these routines and
123 create the code that calls these routines.
126 proto_reg_handoff_docsis_dbcreq (void)
128 dissector_handle_t docsis_dbcreq_handle;
130 docsis_dbcreq_handle = find_dissector ("docsis_dbcreq");
131 docsis_tlv_handle = find_dissector ("docsis_tlv");
132 dissector_add_uint ("docsis_mgmt", 0x24, docsis_dbcreq_handle);