333 lines
12 KiB
C
333 lines
12 KiB
C
/* prefs-int.h
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* Definitions for implementation of preference handling routines;
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* used by "friends" of the preferences type.
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __PREFS_INT_H__
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#define __PREFS_INT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include <stdio.h>
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#include "ws_symbol_export.h"
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#include <epan/wmem/wmem.h>
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/**
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*@file
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*/
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struct pref_module {
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const char *name; /**< name of module */
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const char *title; /**< title of module (displayed in preferences list) */
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const char *description; /**< Description of module (displayed in preferences notebook) */
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void (*apply_cb)(void); /**< routine to call when preferences applied */
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GList *prefs; /**< list of its preferences */
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struct pref_module *parent; /**< parent module */
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wmem_tree_t *submodules; /**< list of its submodules */
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int numprefs; /**< number of non-obsolete preferences */
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unsigned int prefs_changed_flags; /**< Bitmask of the types of changes done by module preferences since we last checked */
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gboolean obsolete; /**< if TRUE, this is a module that used to
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* exist but no longer does
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*/
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gboolean use_gui; /**< Determines whether or not the module will use the generic
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* GUI interface/APIs with the preference value or if its own
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* independent GUI will be provided. This allows all preferences
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* to have a common API for reading/writing, but not require them to
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* use simple GUI controls to change the options. In general, the "general"
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* Wireshark preferences should have this set to FALSE, while the protocol
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* modules will have this set to TRUE */
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unsigned int effect_flags; /**< Flags of types effected by preference (PREF_TYPE_DISSECTION, PREF_EFFECT_CAPTURE, etc).
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These flags will be set in all module's preferences on creation. Flags must be non-zero
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to ensure saving to disk */
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};
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typedef struct {
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module_t *module;
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FILE *pf;
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} write_pref_arg_t;
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/**
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* Module used for protocol preferences.
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* With MSVC and a libwireshark.dll, we need a special declaration.
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*/
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WS_DLL_PUBLIC module_t *protocols_module;
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typedef void (*pref_custom_free_cb) (pref_t* pref);
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typedef void (*pref_custom_reset_cb) (pref_t* pref);
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typedef prefs_set_pref_e (*pref_custom_set_cb) (pref_t* pref, const gchar* value, unsigned int* changed_flags);
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/* typedef void (*pref_custom_write_cb) (pref_t* pref, write_pref_arg_t* arg); Deprecated. */
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/* pref_custom_type_name_cb should return NULL for internal / hidden preferences. */
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typedef const char * (*pref_custom_type_name_cb) (void);
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typedef char * (*pref_custom_type_description_cb) (void);
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typedef gboolean (*pref_custom_is_default_cb) (pref_t* pref);
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typedef char * (*pref_custom_to_str_cb) (pref_t* pref, gboolean default_val);
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/** Structure to hold callbacks for PREF_CUSTOM type */
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struct pref_custom_cbs {
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pref_custom_free_cb free_cb;
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pref_custom_reset_cb reset_cb;
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pref_custom_set_cb set_cb;
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/* pref_custom_write_cb write_cb; Deprecated. */
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pref_custom_type_name_cb type_name_cb;
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pref_custom_type_description_cb type_description_cb;
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pref_custom_is_default_cb is_default_cb;
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pref_custom_to_str_cb to_str_cb;
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};
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/**
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* PREF_OBSOLETE is used for preferences that a module used to support
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* but no longer supports; we give different error messages for them.
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*/
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#define PREF_UINT (1u << 0)
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#define PREF_BOOL (1u << 1)
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#define PREF_ENUM (1u << 2)
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#define PREF_STRING (1u << 3)
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#define PREF_RANGE (1u << 4)
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#define PREF_STATIC_TEXT (1u << 5)
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#define PREF_UAT (1u << 6)
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#define PREF_SAVE_FILENAME (1u << 7)
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#define PREF_COLOR (1u << 8) /* XXX - These are only supported for "internal" (non-protocol) */
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#define PREF_CUSTOM (1u << 9) /* use and not as a generic protocol preference */
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#define PREF_OBSOLETE (1u << 10)
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#define PREF_DIRNAME (1u << 11)
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#define PREF_DECODE_AS_UINT (1u << 12) /* XXX - These are only supported for "internal" (non-protocol) */
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#define PREF_DECODE_AS_RANGE (1u << 13) /* use and not as a generic protocol preference */
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#define PREF_OPEN_FILENAME (1u << 14)
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typedef enum {
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GUI_ALL,
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GUI_GTK,
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GUI_QT
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} gui_type_t;
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/* read_prefs_file: read in a generic config file and do a callback to */
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/* pref_set_pair_fct() for every key/value pair found */
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/**
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* Given a string of the form "<pref name>:<pref value>", as might appear
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* as an argument to a "-o" option, parse it and set the preference in
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* question.
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* @return an indication of whether it succeeded or failed
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* in some fashion.
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*/
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typedef prefs_set_pref_e (*pref_set_pair_cb) (gchar *key, const gchar *value, void *private_data, gboolean return_range_errors);
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WS_DLL_PUBLIC
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const char* prefs_get_description(pref_t *pref);
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WS_DLL_PUBLIC
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const char* prefs_get_title(pref_t *pref);
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WS_DLL_PUBLIC
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const char* prefs_get_name(pref_t *pref);
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WS_DLL_PUBLIC
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int prefs_get_type(pref_t *pref);
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WS_DLL_PUBLIC
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gui_type_t prefs_get_gui_type(pref_t *pref);
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WS_DLL_PUBLIC guint32 prefs_get_max_value(pref_t *pref);
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/* Bitmask of flags for the effect of a preference in Wireshark */
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#define PREF_EFFECT_DISSECTION (1u << 0)
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#define PREF_EFFECT_CAPTURE (1u << 1)
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#define PREF_EFFECT_GUI (1u << 2)
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#define PREF_EFFECT_FONT (1u << 3)
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#define PREF_EFFECT_GUI_LAYOUT (1u << 4)
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#define PREF_EFFECT_CUSTOM (1u << 31)
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/** Fetch flags that show the effect of the preference
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*
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* @param pref A preference.
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*
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* @return A bitmask of the types of things the preference will
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* effect.
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*/
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WS_DLL_PUBLIC
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unsigned int prefs_get_effect_flags(pref_t *pref);
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/** Set flags for the effect of the preference
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* The intention is to distinguish preferences that affect
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* dissection from those that don't. A bitmask was added to
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* provide greater flexibility in the types of effects
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* preferences can have.
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*
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* @param pref A preference.
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* @param flags Bitmask of flags to apply to preference. Note that flags
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* must be non-zero to ensure preference is properly saved to disk.
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*
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*/
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WS_DLL_PUBLIC
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void prefs_set_effect_flags(pref_t *pref, unsigned int flags);
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/** Same as prefs_set_effect_flags, just different way to get preference
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*/
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WS_DLL_PUBLIC
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void prefs_set_effect_flags_by_name(module_t * module, const char *pref, unsigned int flags);
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/** Fetch flags that show module's preferences effect
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* The flag values of the module will be applied to any individual preferences
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* of the module when they are created
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*
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* @param module A preference module.
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*
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* @return A bitmask of the types of things the module's preferences will
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* effect.
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*/
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WS_DLL_PUBLIC
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unsigned int prefs_get_module_effect_flags(module_t * module);
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/** Set flags for module's preferences effect
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* The intention is to distinguish preferences that affect
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* dissection from those that don't. Since modules are a grouping
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* of preferences, it's likely that a whole module will want the
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* same flags for its preferences. The flag values of the module will
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* be applied to any individual preferences of the module when they
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* are created
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*
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* @param module A preference module.
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* @param flags Bitmask of flags to apply to module. Note that flags
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* must be non-zero to ensure preferences are properly saved to disk.
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*
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*/
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WS_DLL_PUBLIC
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void prefs_set_module_effect_flags(module_t * module, unsigned int flags);
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WS_DLL_PUBLIC
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gboolean prefs_set_range_value_work(pref_t *pref, const gchar *value,
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gboolean return_range_errors, unsigned int *changed_flags);
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WS_DLL_PUBLIC
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unsigned int
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prefs_set_stashed_range_value(pref_t *pref, const gchar *value);
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/** Add a range value of a range preference. */
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WS_DLL_PUBLIC
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void
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prefs_range_add_value(pref_t *pref, guint32 val);
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/** Remove a range value of a range preference. */
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WS_DLL_PUBLIC
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void
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prefs_range_remove_value(pref_t *pref, guint32 val);
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WS_DLL_PUBLIC unsigned int prefs_set_bool_value(pref_t *pref, gboolean value, pref_source_t source);
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WS_DLL_PUBLIC gboolean prefs_get_bool_value(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC void prefs_invert_bool_value(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC unsigned int prefs_set_uint_value(pref_t *pref, guint value, pref_source_t source);
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WS_DLL_PUBLIC guint prefs_get_uint_base(pref_t *pref);
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WS_DLL_PUBLIC guint prefs_get_uint_value_real(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC unsigned int prefs_set_enum_value(pref_t *pref, gint value, pref_source_t source);
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WS_DLL_PUBLIC gint prefs_get_enum_value(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC const enum_val_t* prefs_get_enumvals(pref_t *pref);
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WS_DLL_PUBLIC gboolean prefs_get_enum_radiobuttons(pref_t *pref);
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WS_DLL_PUBLIC gboolean prefs_set_color_value(pref_t *pref, color_t value, pref_source_t source);
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WS_DLL_PUBLIC color_t* prefs_get_color_value(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC unsigned int prefs_set_custom_value(pref_t *pref, const char *value, pref_source_t source);
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WS_DLL_PUBLIC unsigned int prefs_set_string_value(pref_t *pref, const char* value, pref_source_t source);
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WS_DLL_PUBLIC char* prefs_get_string_value(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC struct epan_uat* prefs_get_uat_value(pref_t *pref);
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WS_DLL_PUBLIC gboolean prefs_set_range_value(pref_t *pref, range_t *value, pref_source_t source);
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WS_DLL_PUBLIC range_t* prefs_get_range_value_real(pref_t *pref, pref_source_t source);
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WS_DLL_PUBLIC gboolean prefs_add_decode_as_value(pref_t *pref, guint value, gboolean replace);
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WS_DLL_PUBLIC gboolean prefs_remove_decode_as_value(pref_t *pref, guint value, gboolean set_default);
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WS_DLL_PUBLIC void reset_pref(pref_t *pref);
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/** read the preferences file (or similar) and call the callback
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* function to set each key/value pair found
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*/
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WS_DLL_PUBLIC
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int
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read_prefs_file(const char *pf_path, FILE *pf, pref_set_pair_cb pref_set_pair_fct, void *private_data);
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WS_DLL_PUBLIC
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gboolean
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prefs_pref_is_default(pref_t *pref);
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/** "Stash" a preference.
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* Copy a preference to its stashed value. Can be called from prefs_pref_foreach().
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*
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* @param pref A preference.
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* @param unused unused
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*/
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WS_DLL_PUBLIC
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guint pref_stash(pref_t *pref, gpointer unused);
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typedef struct pref_unstash_data
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{
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/* Used to set prefs_changed member to TRUE if the preference
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differs from its stashed values. Also used by "decode as" types
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to look up dissector short name */
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module_t *module;
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/* Qt uses stashed values to then "applies" them
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during unstash. Use this flag for that behavior */
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gboolean handle_decode_as;
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} pref_unstash_data_t;
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/** "Unstash" a preference.
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* Set a preference to its stashed value. Can be called from prefs_pref_foreach().
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*
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* @param pref A preference.
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* @param unstash_data_p A pointer to a pref_unstash_data_t structure.
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*
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* @return Always returns 0.
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*/
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WS_DLL_PUBLIC
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guint pref_unstash(pref_t *pref, gpointer unstash_data_p);
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/** Clean up a stashed preference.
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* Can be called from prefs_pref_foreach().
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*
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* @param pref A preference.
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* @param unused unused
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*
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* @return Always returns 0.
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*/
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WS_DLL_PUBLIC
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guint pref_clean_stash(pref_t *pref, gpointer unused);
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/** Set a stashed preference to its default value.
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*
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*@param pref A preference.
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*/
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WS_DLL_PUBLIC
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void reset_stashed_pref(pref_t *pref);
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/** Convert a string list preference to a preference string.
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*
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* Given a GList of gchar pointers, create a quoted, comma-separated
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* string. Should be used with prefs_get_string_list() and
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* prefs_clear_string_list().
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*
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* @param sl String list.
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* @return Quoted, joined, and wrapped string. May be empty.
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*/
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WS_DLL_PUBLIC
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char *
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join_string_list(GList *sl);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* prefs-int.h */
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