139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/* packet-rmt-fec.h
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* Reliable Multicast Transport (RMT)
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* FEC Building Block function definitions
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* Copyright 2005, Stefano Pettini <spettini@users.sourceforge.net>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __PACKET_RMT_FEC__
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#define __PACKET_RMT_FEC__
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#include "packet-rmt-common.h"
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/* String tables external references */
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extern const value_string string_fec_encoding_id[];
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/* Type definitions */
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/* ================ */
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struct _fec
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{
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gboolean encoding_id_present;
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gboolean instance_id_present;
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guint8 encoding_id;
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guint8 instance_id;
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guint64 transfer_length;
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guint32 encoding_symbol_length;
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guint32 max_source_block_length;
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guint32 max_number_encoding_symbols;
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gboolean sbn_present;
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gboolean sbl_present;
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gboolean esi_present;
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guint32 sbn;
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guint32 sbl;
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guint32 esi;
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};
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/* Wireshark stuff */
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/* ============== */
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/* FEC header field definitions */
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struct _fec_hf
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{
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int header;
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int encoding_id;
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int instance_id;
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int sbn;
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int sbl;
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int esi;
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int fti_header;
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int fti_transfer_length;
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int fti_encoding_symbol_length;
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int fti_max_source_block_length;
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int fti_max_number_encoding_symbols;
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};
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/* FEC subtrees */
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struct _fec_ett
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{
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gint main;
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};
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/* FEC preferences */
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struct _fec_prefs
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{
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gboolean dummy;
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};
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/* FEC pointers */
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struct _fec_ptr
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{
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struct _fec *fec;
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struct _fec_hf *hf;
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struct _fec_ett *ett;
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struct _fec_prefs *prefs;
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};
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/* Macros to generate static arrays */
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#define FEC_FIELD_ARRAY(base_structure, base_protocol) \
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{ &base_structure.header, \
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{ "Forward Error Correction (FEC) header", base_protocol ".fec", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.encoding_id, \
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{ "FEC Encoding ID", base_protocol ".fec.encoding_id", FT_UINT8, BASE_DEC, VALS(string_fec_encoding_id), 0x0, NULL, HFILL }}, \
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{ &base_structure.instance_id, \
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{ "FEC Instance ID", base_protocol ".fec.instance_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.sbn, \
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{ "Source Block Number", base_protocol ".fec.sbn", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.sbl, \
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{ "Source Block Length", base_protocol ".fec.sbl", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.esi, \
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{ "Encoding Symbol ID", base_protocol ".fec.esi", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.fti_header, \
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{ "FEC Object Transmission Information", base_protocol ".fec.fti", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.fti_transfer_length, \
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{ "Transfer Length", base_protocol ".fec.fti.transfer_length", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.fti_encoding_symbol_length, \
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{ "Encoding Symbol Length", base_protocol ".fec.fti.encoding_symbol_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.fti_max_source_block_length, \
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{ "Maximum Source Block Length", base_protocol ".fec.fti.max_source_block_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, \
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{ &base_structure.fti_max_number_encoding_symbols, \
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{ "Maximum Number of Encoding Symbols", base_protocol ".fec.fti.max_number_encoding_symbols", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}
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#define FEC_SUBTREE_ARRAY(base_structure) \
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&base_structure.main
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/* FEC exported functions */
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/* ====================== */
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void fec_info_column(struct _fec *fec, packet_info *pinfo);
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void fec_dissector(struct _fec_ptr f, tvbuff_t *tvb, proto_tree *tree, guint *offset);
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void fec_dissector_free(struct _fec *fec);
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void fec_decode_ext_fti(struct _ext *e, tvbuff_t *tvb, proto_tree *tree, gint ett, struct _fec_ptr f);
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void fec_prefs_set_default(struct _fec_prefs *prefs);
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void fec_prefs_register(struct _fec_prefs *prefs, module_t *module);
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#endif
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