2 * Routines for Dynamic Service Delete Request dissection
3 * Copyright 2002, Anand V. Narwani <anarwani@cisco.com>
5 * Ethereal - Network traffic analyzer
6 * By Gerald Combs <gerald@ethereal.com>
7 * Copyright 1998 Gerald Combs
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #include "plugins/plugin_api.h"
29 #include "plugins/plugin_api_defs.h"
30 #include "moduleinfo.h"
36 #ifdef HAVE_SYS_TYPES_H
37 # include <sys/types.h>
40 #ifdef HAVE_NETINET_IN_H
41 # include <netinet/in.h>
46 #ifdef NEED_SNPRINTF_H
47 # include "snprintf.h"
50 #include <epan/packet.h>
52 /* Initialize the protocol and registered fields */
53 static int proto_docsis_dsdreq = -1;
54 static int hf_docsis_dsdreq = -1;
55 static int hf_docsis_dsdreq_tranid = -1;
56 static int hf_docsis_dsdreq_rsvd = -1;
57 static int hf_docsis_dsdreq_sfid = -1;
59 static dissector_handle_t docsis_tlv_handle;
62 /* Initialize the subtree pointers */
63 static gint ett_docsis_dsdreq = -1;
65 /* Code to actually dissect the packets */
67 dissect_dsdreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
71 proto_tree *dsdreq_tree;
76 transid = tvb_get_ntohs (tvb, 0);
77 tlv_data_len = tvb_length_remaining (tvb, 8);
79 if (check_col (pinfo->cinfo, COL_INFO))
81 col_clear (pinfo->cinfo, COL_INFO);
82 col_add_fstr (pinfo->cinfo, COL_INFO,
83 "Dynamic Service Delete Request Tran-id = %u", transid);
88 proto_tree_add_protocol_format (tree, proto_docsis_dsdreq, tvb, 0,
89 tvb_length_remaining (tvb, 0),
91 dsdreq_tree = proto_item_add_subtree (it, ett_docsis_dsdreq);
92 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_tranid, tvb, 0, 2,
94 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_rsvd, tvb, 2, 2,
96 proto_tree_add_item (dsdreq_tree, hf_docsis_dsdreq_sfid, tvb, 4, 4,
99 /* Call Dissector for Appendix C TLV's */
100 next_tvb = tvb_new_subset (tvb, 8, tlv_data_len, tlv_data_len);
101 call_dissector (docsis_tlv_handle, next_tvb, pinfo, dsdreq_tree);
108 /* Register the protocol with Ethereal */
110 /* this format is require because a script is used to build the C function
111 that calls all the protocol registration.
116 proto_register_docsis_dsdreq (void)
119 /* Setup list of header fields See Section 1.6.1 for details*/
120 static hf_register_info hf[] = {
122 {"Dynamic Service Delete Request", "docsis.dsdreq",
123 FT_BYTES, BASE_HEX, NULL, 0x0,
124 "Dynamic Service Delete Request", HFILL}
126 {&hf_docsis_dsdreq_tranid,
127 {"Transaction Id", "docsis.dsdreq.tranid",
128 FT_UINT16, BASE_DEC, NULL, 0x0,
129 "Transaction Id", HFILL}
131 {&hf_docsis_dsdreq_rsvd,
132 {"Reserved", "docsis.dsdreq.rsvd",
133 FT_UINT16, BASE_HEX, NULL, 0x0,
136 {&hf_docsis_dsdreq_sfid,
137 {"Service Flow ID", "docsis.dsdreq.sfid",
138 FT_UINT32, BASE_DEC, NULL, 0x0,
139 "Service Flow Id", HFILL}
143 /* Setup protocol subtree array */
144 static gint *ett[] = {
148 /* Register the protocol name and description */
149 proto_docsis_dsdreq =
150 proto_register_protocol ("DOCSIS Dynamic Service Delete Request",
151 "DOCSIS DSD-REQ", "docsis_dsdreq");
153 /* Required function calls to register the header fields and subtrees used */
154 proto_register_field_array (proto_docsis_dsdreq, hf, array_length (hf));
155 proto_register_subtree_array (ett, array_length (ett));
157 register_dissector ("docsis_dsdreq", dissect_dsdreq, proto_docsis_dsdreq);
161 /* If this dissector uses sub-dissector registration add a registration routine.
162 This format is required because a script is used to find these routines and
163 create the code that calls these routines.
166 proto_reg_handoff_docsis_dsdreq (void)
168 dissector_handle_t docsis_dsdreq_handle;
170 docsis_dsdreq_handle = find_dissector ("docsis_dsdreq");
171 docsis_tlv_handle = find_dissector ("docsis_tlv");
172 dissector_add ("docsis_mgmt", 0x15, docsis_dsdreq_handle);