![John Thacker](/assets/img/avatar_default.png)
Add functions to test if a compiled dfilter considers an hfid or a protocol id interesting. Use those to define functions to test if any enabled color filter considers an hfid or a protocol interesting.
234 lines
7.3 KiB
C
234 lines
7.3 KiB
C
/* color_filters.h
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* Definitions for color filters
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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 __COLOR_FILTERS_H__
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#define __COLOR_FILTERS_H__
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#include "ws_symbol_export.h"
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#include <wsutil/color.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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struct epan_dissect;
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#define COLORFILTERS_FILE_NAME "colorfilters"
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#define CONVERSATION_COLOR_PREFIX "___conversation_color_filter___"
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/** @file
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* Color filters.
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*/
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/* Data for a color filter. */
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typedef struct _color_filter {
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gchar *filter_name; /* name of the filter */
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gchar *filter_text; /* text of the filter expression */
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color_t bg_color; /* background color for packets that match */
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color_t fg_color; /* foreground color for packets that match */
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gboolean disabled; /* set if the filter is disabled */
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/* only used inside of color_filters.c */
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struct epan_dfilter *c_colorfilter; /* compiled filter expression */
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/* only used outside of color_filters.c (beside init) */
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} color_filter_t;
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/** A color filter was added (while importing).
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* (color_filters.c calls this for every filter coming in)
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*
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* @param colorf the new color filter
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* @param user_data from caller
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*/
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typedef void (*color_filter_add_cb_func)(color_filter_t *colorf, gpointer user_data);
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/** Init the color filters (incl. initial read from file). */
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WS_DLL_PUBLIC gboolean color_filters_init(gchar** err_msg, color_filter_add_cb_func add_cb);
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/** Reload the color filters */
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WS_DLL_PUBLIC gboolean color_filters_reload(gchar** err_msg, color_filter_add_cb_func add_cb);
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/** Cleanup remaining color filter zombies */
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WS_DLL_PUBLIC void color_filters_cleanup(void);
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/** Color filters currently used?
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*
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* @return TRUE, if filters are used
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*/
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WS_DLL_PUBLIC gboolean color_filters_used(void);
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/** Are there any temporary coloring filters used?
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*
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* @return TRUE, if temporary coloring filters are used
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*/
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WS_DLL_PUBLIC gboolean tmp_color_filters_used(void);
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/** Get the filter string of a temporary color filter
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*
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* @param filt_nr a number 1-10 pointing to a temporary color
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* @return the current filter string which is assigned to the specified slot, or NULL if not available.
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*/
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WS_DLL_PUBLIC gchar*
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color_filters_get_tmp(guint8 filt_nr);
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/** Set the filter string of a temporary color filter
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*
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* @param filt_nr a number 1-10 pointing to a temporary color
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* @param filter the new filter-string
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* @param disabled whether the filter-rule should be disabled
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* @param err_msg a string with error message
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*/
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WS_DLL_PUBLIC gboolean
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color_filters_set_tmp(guint8 filt_nr, const gchar *filter, gboolean disabled, gchar **err_msg);
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/** Get a temporary color filter.
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*
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* @param filter_num A number from 1 to 10 specifying the color to fetch.
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* @return The corresponding color or NULL.
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*/
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WS_DLL_PUBLIC const color_filter_t *
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color_filters_tmp_color(guint8 filter_num);
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/** Reset the temporary color filters
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*
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*/
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WS_DLL_PUBLIC gboolean
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color_filters_reset_tmp(gchar **err_msg);
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/* Prime the epan_dissect_t with all the compiled
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* color filters of the current filter list.
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*
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* @param the epan dissector details
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*/
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WS_DLL_PUBLIC void color_filters_prime_edt(struct epan_dissect *edt);
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/** Check if any of the enabled compiled color filters of the current
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* filter list depend on a given header field.
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*
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* @param hfid The header field ID to check
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* @return TRUE if the color filter contains the header field.
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*/
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WS_DLL_PUBLIC gboolean
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color_filters_use_hfid(int hfid);
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/** Check if any of the enabled compiled color filters of the current
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* filter list depend on any field in a given protocol.
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*
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* @param proto_id The protocol ID to check
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* @return TRUE if the color filter contains a field from the protocol
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*/
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WS_DLL_PUBLIC gboolean
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color_filters_use_proto(int proto_id);
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/** Colorize a specific packet.
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*
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* @param edt the dissected packet
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* @return the matching color filter or NULL
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*/
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WS_DLL_PUBLIC const color_filter_t *
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color_filters_colorize_packet(struct epan_dissect *edt);
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/** Clone the currently active filter list.
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*
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* @param user_data will be returned by each call to color_filter_add_cb()
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* @param add_cb the callback function to add color filter
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*/
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WS_DLL_PUBLIC void color_filters_clone(gpointer user_data, color_filter_add_cb_func add_cb);
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/** Load filters (import) from some other filter file.
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*
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* @param path the path to the import file
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* @param user_data will be returned by each call to color_filter_add_cb()
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* @param err_msg a string with error message
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* @param add_cb the callback function to add color filter
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* @return TRUE, if read succeeded
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*/
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WS_DLL_PUBLIC gboolean color_filters_import(const gchar *path, gpointer user_data, gchar **err_msg, color_filter_add_cb_func add_cb);
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/** Read filters from the global filter file (not the users file).
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*
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* @param user_data will be returned by each call to color_filter_add_cb()
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* @param err_msg a string with error message
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* @param add_cb the callback function to add color filter
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* @return TRUE, if read succeeded
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*/
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WS_DLL_PUBLIC gboolean color_filters_read_globals(gpointer user_data, gchar** err_msg, color_filter_add_cb_func add_cb);
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/** Apply a changed filter list.
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*
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* @param tmp_cfl the temporary color filter list to apply
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* @param edit_cfl the edited permanent color filter list to apply
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* @param err_msg a string with error message
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*/
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WS_DLL_PUBLIC gboolean color_filters_apply(GSList *tmp_cfl, GSList *edit_cfl, gchar** err_msg);
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/** Save filters in users filter file.
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*
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* @param cfl the filter list to write
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* @param err_msg a string with error message
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* @return TRUE if write succeeded
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*/
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WS_DLL_PUBLIC gboolean color_filters_write(GSList *cfl, gchar** err_msg);
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/** Save filters (export) to some other filter file.
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*
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* @param path the path to the filter file
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* @param cfl the filter list to write
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* @param only_selected TRUE if only the selected filters should be saved
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* @param err_msg a string with error message
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* @return TRUE, if write succeeded
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*/
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WS_DLL_PUBLIC gboolean color_filters_export(const gchar *path, GSList *cfl, gboolean only_selected, gchar** err_msg);
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/** Create a new color filter (g_malloc'ed).
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*
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* @param name the name of the filter
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* @param filter_string the filter string
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* @param bg_color background color
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* @param fg_color foreground color
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* @param disabled gboolean
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* @return the new color filter
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*/
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WS_DLL_PUBLIC color_filter_t *color_filter_new(
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const gchar *name, const gchar *filter_string,
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color_t *bg_color, color_t *fg_color, gboolean disabled);
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/** Delete a single color filter (g_free'ed).
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*
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* @param colorf the color filter to be removed
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*/
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WS_DLL_PUBLIC void color_filter_delete(color_filter_t *colorf);
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/** Delete a filter list including all entries.
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*
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* @param cfl the filter list to delete
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*/
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WS_DLL_PUBLIC void color_filter_list_delete(GSList **cfl);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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