forked from osmocom/wireshark
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/* circuit.h
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* Routines for building lists of packets that are part of a "circuit"
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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 __CIRCUIT_H__
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#define __CIRCUIT_H__
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#include "packet.h" /* for circuit dissector type */
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#include "ws_symbol_export.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* Data structure representing a circuit.
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*/
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typedef struct circuit_key {
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circuit_type ctype;
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guint32 circuit_id;
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} circuit_key;
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typedef struct circuit {
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struct circuit *next; /**< pointer to next circuit with given circuit ID */
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guint32 first_frame; /**< # of first frame for that circuit */
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guint32 last_frame; /**< # of last frame for that circuit */
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guint32 circuit_index; /**< unique ID for circuit */
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GSList *data_list; /**< list of data associated with circuit */
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dissector_handle_t dissector_handle; /**< handle for protocol dissector client associated with circuit */
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guint options; /**< wildcard flags */
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circuit_key *key_ptr; /**< pointer to the key for this circuit */
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} circuit_t;
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/**
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* Destroy all existing circuits.
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*/
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extern void circuit_cleanup(void);
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/**
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* Initialize some variables every time a file is loaded or re-loaded.
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* Create a new hash table for the circuits in the new file.
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*/
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extern void circuit_init(void);
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/**
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* Given a circuit type and circuit ID for a packet, create a new circuit
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* to contain packets for that circuit.
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*/
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WS_DLL_PUBLIC circuit_t *circuit_new(circuit_type ctype, guint32 circuit_id, guint32 first_frame);
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/**
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* Given a circuit type and ID, and a frame number, search for a circuit with
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* that type and ID whose range of frames includes that frame number.
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* Returns NULL if not found.
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*/
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WS_DLL_PUBLIC circuit_t *find_circuit(circuit_type ctype, guint32 circuit_id, guint32 frame);
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/**
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* Set the last frame of a circuit, if it's not already known,
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* "closing" the circuit.
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*/
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extern void close_circuit(circuit_t *circuit, guint32 last_frame);
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WS_DLL_PUBLIC void circuit_add_proto_data(circuit_t *conv, int proto, void *proto_data);
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WS_DLL_PUBLIC void *circuit_get_proto_data(circuit_t *conv, int proto);
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void circuit_delete_proto_data(circuit_t *conv, int proto);
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extern void circuit_set_dissector(circuit_t *circuit, dissector_handle_t handle);
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extern dissector_handle_t circuit_get_dissector(circuit_t *circuit);
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/**
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* Given a circuit type and ID for a packet, search for a matching
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* circuit and, if found and it has a circuit dissector,
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* call that dissector and return TRUE, otherwise return FALSE.
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*/
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extern gboolean
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try_circuit_dissector(circuit_type ctype, guint32 circuit_id, guint32 frame, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* circuit.h */
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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