2 * Routines for Upstream Channel Change Response dissection
3 * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
5 * $Id: packet-uccrsp.c,v 1.6 2003/12/13 03:18:38 guy 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_uccrsp = -1;
44 static int hf_docsis_uccrsp = -1;
45 static int hf_docsis_uccrsp_upchid = -1;
48 /* Initialize the subtree pointers */
49 static gint ett_docsis_uccrsp = -1;
51 /* Code to actually dissect the packets */
53 dissect_uccrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
57 proto_tree *uccrsp_tree;
60 chid = tvb_get_guint8 (tvb, 0);
62 if (check_col (pinfo->cinfo, COL_INFO))
64 col_clear (pinfo->cinfo, COL_INFO);
65 col_add_fstr (pinfo->cinfo, COL_INFO,
66 "Upstream Channel Change response Channel ID = %u (U%u)",
67 chid, (chid > 0 ? chid - 1 : chid));
73 proto_tree_add_protocol_format (tree, proto_docsis_uccrsp, tvb, 0, -1,
75 uccrsp_tree = proto_item_add_subtree (it, ett_docsis_uccrsp);
76 proto_tree_add_item (uccrsp_tree, hf_docsis_uccrsp_upchid, tvb, 0, 1,
85 /* Register the protocol with Ethereal */
87 /* this format is require because a script is used to build the C function
88 that calls all the protocol registration.
93 proto_register_docsis_uccrsp (void)
96 /* Setup list of header fields See Section 1.6.1 for details*/
97 static hf_register_info hf[] = {
99 {"Upstream Channel Change Request", "docsis.uccrsp",
100 FT_BYTES, BASE_HEX, NULL, 0x0,
101 "Upstream Channel Change Request", HFILL}
103 {&hf_docsis_uccrsp_upchid,
104 {"Upstream Channel Id", "docsis.uccrsp.upchid",
105 FT_UINT8, BASE_DEC, NULL, 0x0,
106 "Upstream Channel Id", HFILL}
110 /* Setup protocol subtree array */
111 static gint *ett[] = {
115 /* Register the protocol name and description */
116 proto_docsis_uccrsp =
117 proto_register_protocol ("DOCSIS Upstream Channel Change Response",
118 "DOCSIS UCC-RSP", "docsis_uccrsp");
120 /* Required function calls to register the header fields and subtrees used */
121 proto_register_field_array (proto_docsis_uccrsp, hf, array_length (hf));
122 proto_register_subtree_array (ett, array_length (ett));
124 register_dissector ("docsis_uccrsp", dissect_uccrsp, proto_docsis_uccrsp);
128 /* If this dissector uses sub-dissector registration add a registration routine.
129 This format is required because a script is used to find these routines and
130 create the code that calls these routines.
133 proto_reg_handoff_docsis_uccrsp (void)
135 dissector_handle_t docsis_uccrsp_handle;
137 docsis_uccrsp_handle = find_dissector ("docsis_uccrsp");
138 dissector_add ("docsis_mgmt", 0x09, docsis_uccrsp_handle);