33629cc801
svn path=/trunk/; revision=8985
202 lines
4.7 KiB
C
202 lines
4.7 KiB
C
/* packet-enttec.c
|
|
* Routines for ENTTEC packet disassembly
|
|
*
|
|
* $Id: packet-enttec.c,v 1.1 2003/11/17 20:57:13 guy Exp $
|
|
*
|
|
* Copyright (c) 2003 by Erwin Rol <erwin@erwinrol.com>
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@ethereal.com>
|
|
* Copyright 1999 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.
|
|
*/
|
|
|
|
/* Include files */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "plugins/plugin_api.h"
|
|
|
|
#include "moduleinfo.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <gmodule.h>
|
|
#include <ctype.h>
|
|
#include <time.h>
|
|
#include <string.h>
|
|
#include <epan/packet.h>
|
|
#include <epan/resolv.h>
|
|
#include "prefs.h"
|
|
#include <epan/strutil.h>
|
|
|
|
#include "plugins/plugin_api_defs.h"
|
|
|
|
/* Define version if we are not building ethereal statically */
|
|
|
|
#ifndef ENABLE_STATIC
|
|
G_MODULE_EXPORT const gchar version[] = VERSION;
|
|
#endif
|
|
|
|
/*
|
|
* See
|
|
*
|
|
* http://www.enttec.com/docs/enttec_protocol.pdf
|
|
*/
|
|
|
|
/* Define udp_port for ENTTEC */
|
|
|
|
#define UDP_PORT_ENTTEC 0x0D05
|
|
|
|
void proto_reg_handoff_enttec(void);
|
|
|
|
/* Define the enttec proto */
|
|
static int proto_enttec = -1;
|
|
|
|
/* general */
|
|
static int hf_enttec_head = -1;
|
|
|
|
/* Define the tree for enttec */
|
|
static int ett_enttec = -1;
|
|
|
|
/*
|
|
* Here are the global variables associated with the preferences
|
|
* for enttec
|
|
*/
|
|
|
|
static guint global_udp_port_enttec = UDP_PORT_ENTTEC;
|
|
static guint udp_port_enttec = UDP_PORT_ENTTEC;
|
|
|
|
/* A static handle for the ip dissector */
|
|
static dissector_handle_t ip_handle;
|
|
static dissector_handle_t rdm_handle;
|
|
|
|
static void
|
|
dissect_enttec(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
|
|
gint offset = 0;
|
|
proto_tree *ti,*enttec_tree=NULL;
|
|
|
|
/* Set the protocol column */
|
|
if(check_col(pinfo->cinfo,COL_PROTOCOL)){
|
|
col_set_str(pinfo->cinfo,COL_PROTOCOL,"ENTTEC");
|
|
}
|
|
|
|
/* Clear out stuff in the info column */
|
|
if(check_col(pinfo->cinfo,COL_INFO)){
|
|
col_clear(pinfo->cinfo,COL_INFO);
|
|
}
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_enttec, tvb, offset, -1, FALSE);
|
|
enttec_tree = proto_item_add_subtree(ti, ett_enttec);
|
|
}
|
|
|
|
|
|
if( enttec_tree ) {
|
|
proto_tree_add_item(enttec_tree, hf_enttec_head, tvb,
|
|
offset, 4, FALSE );
|
|
offset += 4;
|
|
}
|
|
}
|
|
|
|
void
|
|
proto_register_enttec(void) {
|
|
static hf_register_info hf[] = {
|
|
|
|
/* General */
|
|
|
|
{ &hf_enttec_head,
|
|
{ "Head",
|
|
"enttec.head",
|
|
FT_STRING, BASE_HEX, NULL, 0x0,
|
|
"Head", HFILL }}
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_enttec,
|
|
};
|
|
|
|
module_t *enttec_module;
|
|
|
|
proto_enttec = proto_register_protocol("ENTTEC",
|
|
"ENTTEC","enttec");
|
|
proto_register_field_array(proto_enttec,hf,array_length(hf));
|
|
proto_register_subtree_array(ett,array_length(ett));
|
|
|
|
enttec_module = prefs_register_protocol(proto_enttec,
|
|
proto_reg_handoff_enttec);
|
|
prefs_register_uint_preference(enttec_module, "udp_port",
|
|
"ENTTEC UDP Port",
|
|
"The UDP port on which "
|
|
"ENTTEC "
|
|
"packets will be sent",
|
|
10,&global_udp_port_enttec);
|
|
|
|
}
|
|
|
|
/* The registration hand-off routing */
|
|
|
|
void
|
|
proto_reg_handoff_enttec(void) {
|
|
static int enttec_initialized = FALSE;
|
|
static dissector_handle_t enttec_handle;
|
|
|
|
ip_handle = find_dissector("ip");
|
|
rdm_handle = find_dissector("rdm");
|
|
|
|
|
|
if(!enttec_initialized) {
|
|
enttec_handle = create_dissector_handle(dissect_enttec,proto_enttec);
|
|
enttec_initialized = TRUE;
|
|
} else {
|
|
dissector_delete("udp.port",udp_port_enttec,enttec_handle);
|
|
}
|
|
|
|
udp_port_enttec = global_udp_port_enttec;
|
|
|
|
dissector_add("udp.port",global_udp_port_enttec,enttec_handle);
|
|
}
|
|
|
|
/* Start the functions we need for the plugin stuff */
|
|
|
|
#ifndef ENABLE_STATIC
|
|
|
|
G_MODULE_EXPORT void
|
|
plugin_reg_handoff(void){
|
|
proto_reg_handoff_enttec();
|
|
}
|
|
|
|
G_MODULE_EXPORT void
|
|
plugin_init(plugin_address_table_t *pat
|
|
#ifndef PLUGINS_NEED_ADDRESS_TABLE
|
|
_U_
|
|
#endif
|
|
){
|
|
/* initialise the table of pointers needed in Win32 DLLs */
|
|
plugin_address_table_init(pat);
|
|
/* register the new protocol, protocol fields, and subtrees */
|
|
if (proto_enttec == -1) { /* execute protocol initialization only once */
|
|
proto_register_enttec();
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/* End the functions we need for plugin stuff */
|
|
|