/* 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 * * Wireshark - Network traffic analyzer * By Gerald Combs * 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 #include 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: */