2 * Routines for Upstream Channel Change Response 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_uccrsp = -1;
42 static int hf_docsis_uccrsp = -1;
43 static int hf_docsis_uccrsp_upchid = -1;
46 /* Initialize the subtree pointers */
47 static gint ett_docsis_uccrsp = -1;
49 /* Code to actually dissect the packets */
51 dissect_uccrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
55 proto_tree *uccrsp_tree;
58 chid = tvb_get_guint8 (tvb, 0);
60 if (check_col (pinfo->cinfo, COL_INFO))
62 col_clear (pinfo->cinfo, COL_INFO);
63 col_add_fstr (pinfo->cinfo, COL_INFO,
64 "Upstream Channel Change response Channel ID = %u (U%u)",
65 chid, (chid > 0 ? chid - 1 : chid));
71 proto_tree_add_protocol_format (tree, proto_docsis_uccrsp, tvb, 0, -1,
73 uccrsp_tree = proto_item_add_subtree (it, ett_docsis_uccrsp);
74 proto_tree_add_item (uccrsp_tree, hf_docsis_uccrsp_upchid, tvb, 0, 1,
83 /* Register the protocol with Ethereal */
85 /* this format is require because a script is used to build the C function
86 that calls all the protocol registration.
91 proto_register_docsis_uccrsp (void)
94 /* Setup list of header fields See Section 1.6.1 for details*/
95 static hf_register_info hf[] = {
97 {"Upstream Channel Change Request", "docsis.uccrsp",
98 FT_BYTES, BASE_HEX, NULL, 0x0,
99 "Upstream Channel Change Request", HFILL}
101 {&hf_docsis_uccrsp_upchid,
102 {"Upstream Channel Id", "docsis.uccrsp.upchid",
103 FT_UINT8, BASE_DEC, NULL, 0x0,
104 "Upstream Channel Id", HFILL}
108 /* Setup protocol subtree array */
109 static gint *ett[] = {
113 /* Register the protocol name and description */
114 proto_docsis_uccrsp =
115 proto_register_protocol ("DOCSIS Upstream Channel Change Response",
116 "DOCSIS UCC-RSP", "docsis_uccrsp");
118 /* Required function calls to register the header fields and subtrees used */
119 proto_register_field_array (proto_docsis_uccrsp, hf, array_length (hf));
120 proto_register_subtree_array (ett, array_length (ett));
122 register_dissector ("docsis_uccrsp", dissect_uccrsp, proto_docsis_uccrsp);
126 /* If this dissector uses sub-dissector registration add a registration routine.
127 This format is required because a script is used to find these routines and
128 create the code that calls these routines.
131 proto_reg_handoff_docsis_uccrsp (void)
133 dissector_handle_t docsis_uccrsp_handle;
135 docsis_uccrsp_handle = find_dissector ("docsis_uccrsp");
136 dissector_add ("docsis_mgmt", 0x09, docsis_uccrsp_handle);