2 * Routines for Upstream Channel Change Response 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 #include <epan/packet.h>
48 /* Initialize the protocol and registered fields */
49 static int proto_docsis_uccrsp = -1;
50 static int hf_docsis_uccrsp = -1;
51 static int hf_docsis_uccrsp_upchid = -1;
54 /* Initialize the subtree pointers */
55 static gint ett_docsis_uccrsp = -1;
57 /* Code to actually dissect the packets */
59 dissect_uccrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
63 proto_tree *uccrsp_tree;
66 chid = tvb_get_guint8 (tvb, 0);
68 if (check_col (pinfo->cinfo, COL_INFO))
70 col_clear (pinfo->cinfo, COL_INFO);
71 col_add_fstr (pinfo->cinfo, COL_INFO,
72 "Upstream Channel Change response Channel ID = %u (U%u)",
73 chid, (chid > 0 ? chid - 1 : chid));
79 proto_tree_add_protocol_format (tree, proto_docsis_uccrsp, tvb, 0,
80 tvb_length_remaining (tvb, 0),
82 uccrsp_tree = proto_item_add_subtree (it, ett_docsis_uccrsp);
83 proto_tree_add_item (uccrsp_tree, hf_docsis_uccrsp_upchid, tvb, 0, 1,
92 /* Register the protocol with Ethereal */
94 /* this format is require because a script is used to build the C function
95 that calls all the protocol registration.
100 proto_register_docsis_uccrsp (void)
103 /* Setup list of header fields See Section 1.6.1 for details*/
104 static hf_register_info hf[] = {
106 {"Upstream Channel Change Request", "docsis.uccrsp",
107 FT_BYTES, BASE_HEX, NULL, 0x0,
108 "Upstream Channel Change Request", HFILL}
110 {&hf_docsis_uccrsp_upchid,
111 {"Upstream Channel Id", "docsis.uccrsp.upchid",
112 FT_UINT8, BASE_DEC, NULL, 0x0,
113 "Upstream Channel Id", HFILL}
117 /* Setup protocol subtree array */
118 static gint *ett[] = {
122 /* Register the protocol name and description */
123 proto_docsis_uccrsp =
124 proto_register_protocol ("DOCSIS Upstream Channel Change Response",
125 "DOCSIS UCC-RSP", "docsis_uccrsp");
127 /* Required function calls to register the header fields and subtrees used */
128 proto_register_field_array (proto_docsis_uccrsp, hf, array_length (hf));
129 proto_register_subtree_array (ett, array_length (ett));
131 register_dissector ("docsis_uccrsp", dissect_uccrsp, proto_docsis_uccrsp);
135 /* If this dissector uses sub-dissector registration add a registration routine.
136 This format is required because a script is used to find these routines and
137 create the code that calls these routines.
140 proto_reg_handoff_docsis_uccrsp (void)
142 dissector_handle_t docsis_uccrsp_handle;
144 docsis_uccrsp_handle = find_dissector ("docsis_uccrsp");
145 dissector_add ("docsis_mgmt", 0x09, docsis_uccrsp_handle);