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/* packet-fractalgeneratorprotocol.c
* Routines for the Fractal Generator Protocol, a test application of the
* rsplib RSerPool implementation
* http://www.tdr.wiwi.uni-due.de/forschung/forschungsprojekte/reliable-server-pooling//
*
* Copyright 2006 by Thomas Dreibholz <dreibh [AT] exp-math.uni-essen.de>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from README.developer
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/sctpppids.h>
void proto_register_fractalgeneratorprotocol(void);
void proto_reg_handoff_fractalgeneratorprotocol(void);
#define FRACTALGENERATORPROTOCOL_PAYLOAD_PROTOCOL_ID_LEGACY 0x29097601
/* Initialize the protocol and registered fields */
static int proto_fractalgeneratorprotocol = -1;
static int hf_message_type = -1;
static int hf_message_flags = -1;
static int hf_message_length = -1;
static int hf_data_start_x = -1;
static int hf_data_start_y = -1;
static int hf_data_points = -1;
static int hf_parameter_width = -1;
static int hf_parameter_height = -1;
static int hf_parameter_maxiterations = -1;
static int hf_parameter_algorithmid = -1;
static int hf_parameter_c1real = -1;
static int hf_parameter_c1imag = -1;
static int hf_parameter_c2real = -1;
static int hf_parameter_c2imag = -1;
static int hf_parameter_n = -1;
static int hf_buffer = -1;
/* Initialize the subtree pointers */
static gint ett_fractalgeneratorprotocol = -1;
/* Dissectors for messages. This is specific to FractalGeneratorProtocol */
#define MESSAGE_TYPE_LENGTH 1
#define MESSAGE_FLAGS_LENGTH 1
#define MESSAGE_LENGTH_LENGTH 2
#define MESSAGE_TYPE_OFFSET 0
#define MESSAGE_FLAGS_OFFSET (MESSAGE_TYPE_OFFSET + MESSAGE_TYPE_LENGTH)
#define MESSAGE_LENGTH_OFFSET (MESSAGE_FLAGS_OFFSET + MESSAGE_FLAGS_OFFSET)
#define MESSAGE_VALUE_OFFSET (MESSAGE_LENGTH_OFFSET + MESSAGE_LENGTH_LENGTH)
#define DATA_STARTX_LENGTH 4
#define DATA_STARTY_LENGTH 4
#define DATA_POINTS_LENGTH 4
#define DATA_BUFFER_LENGTH 4
#define DATA_STARTX_OFFSET MESSAGE_VALUE_OFFSET
#define DATA_STARTY_OFFSET (DATA_STARTX_OFFSET + DATA_STARTX_LENGTH)
#define DATA_POINTS_OFFSET (DATA_STARTY_OFFSET + DATA_STARTY_LENGTH)
#define DATA_BUFFER_OFFSET (DATA_POINTS_OFFSET + DATA_POINTS_LENGTH)
#define PARAMETER_WIDTH_LENGTH 4
#define PARAMETER_HEIGHT_LENGTH 4
#define PARAMETER_MAXITERATIONS_LENGTH 4
#define PARAMETER_ALGORITHMID_LENGTH 4
#define PARAMETER_C1REAL_LENGTH 8
#define PARAMETER_C1IMAG_LENGTH 8
#define PARAMETER_C2REAL_LENGTH 8
#define PARAMETER_C2IMAG_LENGTH 8
#define PARAMETER_N_LENGTH 8
#define PARAMETER_WIDTH_OFFSET MESSAGE_VALUE_OFFSET
#define PARAMETER_HEIGHT_OFFSET (PARAMETER_WIDTH_OFFSET + PARAMETER_WIDTH_LENGTH)
#define PARAMETER_MAXITERATIONS_OFFSET (PARAMETER_HEIGHT_OFFSET + PARAMETER_HEIGHT_LENGTH)
#define PARAMETER_ALGORITHMID_OFFSET (PARAMETER_MAXITERATIONS_OFFSET + PARAMETER_MAXITERATIONS_LENGTH)
#define PARAMETER_C1REAL_OFFSET (PARAMETER_ALGORITHMID_OFFSET + PARAMETER_ALGORITHMID_LENGTH)
#define PARAMETER_C1IMAG_OFFSET (PARAMETER_C1REAL_OFFSET + PARAMETER_C1REAL_LENGTH)
#define PARAMETER_C2REAL_OFFSET (PARAMETER_C1IMAG_OFFSET + PARAMETER_C1IMAG_LENGTH)
#define PARAMETER_C2IMAG_OFFSET (PARAMETER_C2REAL_OFFSET + PARAMETER_C2REAL_LENGTH)
#define PARAMETER_N_OFFSET (PARAMETER_C2IMAG_OFFSET + PARAMETER_C2IMAG_LENGTH)
#define FRACTALGENERATOR_PARAMETER_MESSAGE_TYPE 0x01
#define FRACTALGENERATOR_DATA_MESSAGE_TYPE 0x02
static const value_string message_type_values[] = {
{ FRACTALGENERATOR_PARAMETER_MESSAGE_TYPE, "FractalGenerator Parameter" },
{ FRACTALGENERATOR_DATA_MESSAGE_TYPE, "FractalGenerator Data" },
{ 0, NULL }
};
static void
dissect_fractalgeneratorprotocol_parameter_message(tvbuff_t *message_tvb, proto_tree *message_tree)
{
proto_tree_add_item(message_tree, hf_parameter_width, message_tvb, PARAMETER_WIDTH_OFFSET, PARAMETER_WIDTH_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_height, message_tvb, PARAMETER_HEIGHT_OFFSET, PARAMETER_HEIGHT_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_maxiterations, message_tvb, PARAMETER_MAXITERATIONS_OFFSET, PARAMETER_MAXITERATIONS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_algorithmid, message_tvb, PARAMETER_ALGORITHMID_OFFSET, PARAMETER_ALGORITHMID_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_c1real, message_tvb, PARAMETER_C1REAL_OFFSET, PARAMETER_C1REAL_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_c1imag, message_tvb, PARAMETER_C1IMAG_OFFSET, PARAMETER_C1IMAG_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_c2real, message_tvb, PARAMETER_C2REAL_OFFSET, PARAMETER_C2REAL_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_c2imag, message_tvb, PARAMETER_C2IMAG_OFFSET, PARAMETER_C2IMAG_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_parameter_n, message_tvb, PARAMETER_N_OFFSET, PARAMETER_N_LENGTH, ENC_BIG_ENDIAN);
}
static void
dissect_fractalgeneratorprotocol_data_message(tvbuff_t *message_tvb, proto_tree *message_tree)
{
guint16 buffer_length;
proto_tree_add_item(message_tree, hf_data_start_x, message_tvb, DATA_STARTX_OFFSET, DATA_STARTX_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_start_y, message_tvb, DATA_STARTY_OFFSET, DATA_STARTY_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_points, message_tvb, DATA_POINTS_OFFSET, DATA_POINTS_LENGTH, ENC_BIG_ENDIAN);
buffer_length = tvb_get_ntohl(message_tvb, DATA_POINTS_OFFSET)*4;
if (buffer_length > 0) {
proto_tree_add_item(message_tree, hf_buffer, message_tvb, DATA_BUFFER_OFFSET, buffer_length, ENC_NA);
}
}
static void
dissect_fractalgeneratorprotocol_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *fractalgeneratorprotocol_tree)
{
guint8 type;
type = tvb_get_guint8(message_tvb, MESSAGE_TYPE_OFFSET);
col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(type, message_type_values, "Unknown FractalGeneratorProtocol type"));
proto_tree_add_item(fractalgeneratorprotocol_tree, hf_message_type, message_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(fractalgeneratorprotocol_tree, hf_message_flags, message_tvb, MESSAGE_FLAGS_OFFSET, MESSAGE_FLAGS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(fractalgeneratorprotocol_tree, hf_message_length, message_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, ENC_BIG_ENDIAN);
switch (type) {
case FRACTALGENERATOR_PARAMETER_MESSAGE_TYPE:
dissect_fractalgeneratorprotocol_parameter_message(message_tvb, fractalgeneratorprotocol_tree);
break;
case FRACTALGENERATOR_DATA_MESSAGE_TYPE:
dissect_fractalgeneratorprotocol_data_message(message_tvb, fractalgeneratorprotocol_tree);
break;
}
}
static int
dissect_fractalgeneratorprotocol(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *fractalgeneratorprotocol_item;
proto_tree *fractalgeneratorprotocol_tree;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FractalGeneratorProtocol");
/* create the fractalgeneratorprotocol protocol tree */
fractalgeneratorprotocol_item = proto_tree_add_item(tree, proto_fractalgeneratorprotocol, message_tvb, 0, -1, ENC_NA);
fractalgeneratorprotocol_tree = proto_item_add_subtree(fractalgeneratorprotocol_item, ett_fractalgeneratorprotocol);
/* dissect the message */
dissect_fractalgeneratorprotocol_message(message_tvb, pinfo, fractalgeneratorprotocol_tree);
return(TRUE);
}
/* Register the protocol with Wireshark */
void
proto_register_fractalgeneratorprotocol(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_message_type, { "Type", "fractalgeneratorprotocol.message_type", FT_UINT8, BASE_DEC, VALS(message_type_values), 0x0, NULL, HFILL } },
{ &hf_message_flags, { "Flags", "fractalgeneratorprotocol.message_flags", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_message_length, { "Length", "fractalgeneratorprotocol.message_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_start_x, { "StartX", "fractalgeneratorprotocol.data_start_x", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_start_y, { "StartY", "fractalgeneratorprotocol.data_start_y", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_points, { "Points", "fractalgeneratorprotocol.data_points", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_width, { "Width", "fractalgeneratorprotocol.parameter_width", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_height, { "Height", "fractalgeneratorprotocol.parameter_height", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_maxiterations, { "MaxIterations", "fractalgeneratorprotocol.parameter_maxiterations", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_algorithmid, { "AlgorithmID", "fractalgeneratorprotocol.parameter_algorithmid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_c1real, { "C1Real", "fractalgeneratorprotocol.parameter_c1real", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_c1imag, { "C1Imag", "fractalgeneratorprotocol.parameter_c1imag", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_c2real, { "C2Real", "fractalgeneratorprotocol.parameter_c2real", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_c2imag, { "C2Imag", "fractalgeneratorprotocol.parameter_c2imag", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_parameter_n, { "N", "fractalgeneratorprotocol.parameter_n", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_buffer, { "Buffer", "fractalgeneratorprotocol.buffer", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_fractalgeneratorprotocol
};
/* Register the protocol name and description */
proto_fractalgeneratorprotocol = proto_register_protocol("Fractal Generator Protocol", "FractalGeneratorProtocol", "fractalgeneratorprotocol");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_fractalgeneratorprotocol, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_fractalgeneratorprotocol(void)
{
dissector_handle_t fractalgeneratorprotocol_handle;
fractalgeneratorprotocol_handle = create_dissector_handle(dissect_fractalgeneratorprotocol, proto_fractalgeneratorprotocol);
dissector_add_uint("sctp.ppi", FRACTALGENERATORPROTOCOL_PAYLOAD_PROTOCOL_ID_LEGACY, fractalgeneratorprotocol_handle);
dissector_add_uint("sctp.ppi", FGP_PAYLOAD_PROTOCOL_ID, fractalgeneratorprotocol_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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