2 * Routines for Registration Acknowledge Message dissection
3 * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
5 * $Id: packet-regack.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_regack = -1;
44 static int hf_docsis_regack = -1;
45 static int hf_docsis_regack_sid = -1;
46 static int hf_docsis_regack_response = -1;
47 static dissector_handle_t docsis_tlv_handle;
49 /* Defined in packet-tlv.c */
50 extern value_string docsis_conf_code[];
52 /* Initialize the subtree pointers */
53 static gint ett_docsis_regack = -1;
55 /* Code to actually dissect the packets */
57 dissect_regack (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
61 proto_tree *regack_tree;
66 sid = tvb_get_ntohs (tvb, 0);
67 response = tvb_get_guint8 (tvb, 2);
69 if (check_col (pinfo->cinfo, COL_INFO))
71 col_clear (pinfo->cinfo, COL_INFO);
72 col_add_fstr (pinfo->cinfo, COL_INFO,
73 "Registration Acknowledge SID = %u (%s)", sid,
74 val_to_str (response, docsis_conf_code, "%s"));
79 proto_tree_add_protocol_format (tree, proto_docsis_regack, tvb, 0, -1,
80 "Registration Acknowledge");
81 regack_tree = proto_item_add_subtree (it, ett_docsis_regack);
82 proto_tree_add_item (regack_tree, hf_docsis_regack_sid, tvb, 0, 2,
84 proto_tree_add_item (regack_tree, hf_docsis_regack_response, tvb, 2, 1,
87 /* Call Dissector for Appendix C TLV's */
88 next_tvb = tvb_new_subset (tvb, 3, -1, -1);
89 call_dissector (docsis_tlv_handle, next_tvb, pinfo, regack_tree);
97 /* Register the protocol with Ethereal */
99 /* this format is require because a script is used to build the C function
100 that calls all the protocol registration.
105 proto_register_docsis_regack (void)
108 /* Setup list of header fields See Section 1.6.1 for details*/
109 static hf_register_info hf[] = {
111 {"Registration Request", "docsis.regack",
112 FT_BYTES, BASE_HEX, NULL, 0x0,
113 "Registration Request", HFILL}
115 {&hf_docsis_regack_sid,
116 {"Service Identifier", "docsis.regack.sid",
117 FT_UINT16, BASE_DEC, NULL, 0x0,
118 "Service Identifier", HFILL}
120 {&hf_docsis_regack_response,
121 {"Response Code", "docsis.regack.respnse",
122 FT_UINT8, BASE_DEC, VALS (docsis_conf_code), 0x0,
123 "Response Code", HFILL}
127 /* Setup protocol subtree array */
128 static gint *ett[] = {
132 /* Register the protocol name and description */
133 proto_docsis_regack =
134 proto_register_protocol ("DOCSIS Registration Acknowledge",
135 "DOCSIS REG-ACK", "docsis_regack");
137 /* Required function calls to register the header fields and subtrees used */
138 proto_register_field_array (proto_docsis_regack, hf, array_length (hf));
139 proto_register_subtree_array (ett, array_length (ett));
141 register_dissector ("docsis_regack", dissect_regack, proto_docsis_regack);
145 /* If this dissector uses sub-dissector registration add a registration routine.
146 This format is required because a script is used to find these routines and
147 create the code that calls these routines.
150 proto_reg_handoff_docsis_regack (void)
152 dissector_handle_t docsis_regack_handle;
154 docsis_regack_handle = find_dissector ("docsis_regack");
155 docsis_tlv_handle = find_dissector ("docsis_tlv");
156 dissector_add ("docsis_mgmt", 0x0e, docsis_regack_handle);