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/** @file
* GUI independent helper routines common to all service response time (SRT) taps.
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __SRT_TABLE_H__
#define __SRT_TABLE_H__
#include "tap.h"
#include "timestats.h"
#include <epan/wmem_scopes.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/** Procedure data */
typedef struct _srt_procedure_t {
int proc_index;
timestat_t stats; /**< stats */
char *procedure; /**< column entries */
} srt_procedure_t;
/** Statistics table */
typedef struct _srt_stat_table {
const char *name; /**< table name */
const char *short_name; /**< tab name */
char *filter_string; /**< append procedure number (%d) to this string
to create a display filter */
int num_procs; /**< number of elements on procedures array */
const char *proc_column_name; /**< procedure column name (if different from default) */
srt_procedure_t *procedures;/**< the procedures array */
void* table_specific_data; /** any dissector/table specific data needed for packet filtering */
} srt_stat_table;
struct register_srt;
struct _srt_data_t;
typedef void (*srt_proc_table_cb)(srt_stat_table* rst, int indx, struct _srt_data_t* gui_data);
typedef void (*srt_init_cb)(struct register_srt* srt, GArray* srt_array);
typedef unsigned (*srt_param_handler_cb)(struct register_srt* srt, const char* opt_arg, char** err);
/** tap data
*/
typedef struct _srt_data_t {
GArray *srt_array; /**< array of srt_stat_table */
void *user_data; /**< "GUI" specifics (if necessary) */
} srt_data_t;
/** Structure for information about a registered service response table */
typedef struct register_srt register_srt_t;
/** Register the service response time table for the srt windows.
*
* @param proto_id is the protocol with conversation
* @param tap_listener string for register_tap_listener (NULL to just use protocol name)
* @param max_tables maximum number of tables
* @param srt_packet_func the tap processing function
* @param init_cb initialize dissector SRT function
* @param param_cb handles dissection of parameters to optional arguments of tap string
*/
WS_DLL_PUBLIC void register_srt_table(const int proto_id, const char* tap_listener, int max_tables,
tap_packet_cb srt_packet_func, srt_init_cb init_cb, srt_param_handler_cb param_cb);
/** Get protocol ID from SRT
*
* @param srt Registered SRT
* @return protocol id of SRT
*/
WS_DLL_PUBLIC int get_srt_proto_id(register_srt_t* srt);
/** Get string for register_tap_listener call. Typically just dissector name
*
* @param srt Registered SRT
* @return string for register_tap_listener call
*/
WS_DLL_PUBLIC const char* get_srt_tap_listener_name(register_srt_t* srt);
/** Get maximum number of tables from SRT
*
* @param srt Registered SRT
* @return maximum number of tables of SRT
*/
WS_DLL_PUBLIC int get_srt_max_tables(register_srt_t* srt);
/** Get tap function handler from SRT
*
* @param srt Registered SRT
* @return tap function handler of SRT
*/
WS_DLL_PUBLIC tap_packet_cb get_srt_packet_func(register_srt_t* srt);
/** Set parameter data from SRT parsed from tap string. Data will be
* freed on tap reset
*
* @param srt Registered SRT
* @param data Parameter data
*/
WS_DLL_PUBLIC void set_srt_table_param_data(register_srt_t* srt, void* data);
/** Get parameter data from SRT
*
* @param srt Registered SRT
* @return Parameter data
*/
WS_DLL_PUBLIC void* get_srt_table_param_data(register_srt_t* srt);
/** Get SRT table by its dissector name
*
* @param name dissector name to fetch.
* @return SRT table pointer or NULL.
*/
WS_DLL_PUBLIC register_srt_t* get_srt_table_by_name(const char* name);
/** Free the srt table data.
*
* @param rst the srt table
*/
WS_DLL_PUBLIC void free_srt_table_data(srt_stat_table *rst);
/** Free the srt table data.
*
* @param srt Registered SRT
* @param srt_array SRT table array
*/
WS_DLL_PUBLIC void free_srt_table(register_srt_t *srt, GArray* srt_array);
/** Reset ALL tables in the srt.
*
* @param srt_array SRT table array
*/
WS_DLL_PUBLIC void reset_srt_table(GArray* srt_array);
/** Iterator to walk srt tables and execute func
* Used for initialization
*
* @param func action to be performed on all conversation tables
* @param user_data any data needed to help perform function
*/
WS_DLL_PUBLIC void srt_table_iterate_tables(wmem_foreach_func func, void *user_data);
/** Return filter used for register_tap_listener
*
* @param srt Registered SRT
* @param opt_arg passed in opt_arg from GUI
* @param filter returned filter string to be used for registering tap
* @param err returned error if opt_arg string can't be successfully parsed. Caller must free memory
*/
WS_DLL_PUBLIC void srt_table_get_filter(register_srt_t* srt, const char *opt_arg, const char **filter, char** err);
/** "Common" initialization function for all GUIs
*
* @param srt Registered SRT
* @param srt_array SRT table array
*/
WS_DLL_PUBLIC void srt_table_dissector_init(register_srt_t* srt, GArray* srt_array);
/** Helper function to get tap string name
* Caller is responsible for freeing returned string
*
* @param srt Registered SRT
* @return SRT tap string
*/
WS_DLL_PUBLIC char* srt_table_get_tap_string(register_srt_t* srt);
/** Init an srt table data structure.
*
* @param name the table name
* @param short_name the name used in a tab display
* @param srt_array the srt table array to add to
* @param num_procs number of procedures
* @param proc_column_name procedure column name (if different from "Procedure")
* @param filter_string table filter string or NULL
* @param table_specific_data Table specific data
* @return newly created srt_stat_table
*/
WS_DLL_PUBLIC srt_stat_table* init_srt_table(const char *name, const char *short_name, GArray *srt_array, int num_procs, const char* proc_column_name,
const char *filter_string, void* table_specific_data);
/** Init an srt table row data structure.
*
* @param rst the srt table
* @param proc_index number of procedure
* @param procedure the procedures name
*/
WS_DLL_PUBLIC void init_srt_table_row(srt_stat_table *rst, int proc_index, const char *procedure);
/** Add srt response to table row data.
*
* @param rst the srt table
* @param proc_index number of procedure
* @param req_time the time of the corresponding request
* @param pinfo current packet info
*/
WS_DLL_PUBLIC void add_srt_table_data(srt_stat_table *rst, int proc_index, const nstime_t *req_time, packet_info *pinfo);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __SRT_TABLE_H__ */
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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