wireshark/plugins/docsis/packet-sync.c

117 lines
3.2 KiB
C

/* packet-sync.c
* $Id$
* Routines for Sync Message dissection
* Copyright 2007, Bruno Verstuyft <bruno.verstuyft@excentis.com>
*
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <epan/packet.h>
/* Initialize the protocol and registered fields */
static int proto_docsis_sync = -1;
static int hf_docsis_sync = -1;
static int hf_docsis_sync_cmts_timestamp = -1;
/* Initialize the subtree pointers */
static gint ett_docsis_sync = -1;
static void
dissect_sync (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{
proto_item *it;
proto_tree *sync_tree;
col_set_str(pinfo->cinfo, COL_INFO, "Sync Message:");
if (tree)
{
it = proto_tree_add_protocol_format (tree, proto_docsis_sync, tvb, 0, -1,"SYNC Message");
sync_tree = proto_item_add_subtree (it, ett_docsis_sync);
proto_tree_add_item (sync_tree, hf_docsis_sync_cmts_timestamp, tvb, 0, 4,
FALSE);
} /* if(tree) */
}
/* Register the protocol with Wireshark */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_docsis_sync (void)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] = {
{&hf_docsis_sync,
{"SYNC Message", "docsis_sync",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{&hf_docsis_sync_cmts_timestamp,
{"CMTS Timestamp", "docsis_sync.cmts_timestamp",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Sync CMTS Timestamp", HFILL}
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_docsis_sync,
};
/* Register the protocol name and description */
proto_docsis_sync =
proto_register_protocol ("DOCSIS Synchronisation Message",
"DOCSIS Sync", "docsis_sync");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array (proto_docsis_sync, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
register_dissector ("docsis_sync", dissect_sync, proto_docsis_sync);
}
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void
proto_reg_handoff_docsis_sync (void)
{
dissector_handle_t docsis_sync_handle;
docsis_sync_handle = find_dissector ("docsis_sync");
dissector_add ("docsis_mgmt", 1, docsis_sync_handle);
}