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filter_expressions.c
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/* filter_expressions.c
* Submitted by Edwin Groothuis <[email protected]>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <[email protected]>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <glib.h>
#include <epan/prefs.h>
#include <epan/uat.h>
#include <epan/uat-int.h>
#include "epan/filter_expressions.h"
/* UAT variables */
static uat_t *display_filter_macro_uat = NULL;
static filter_expression_t *display_filter_macros = NULL;
static guint num_display_filter_macros = 0;
/* Field callbacks. */
UAT_BOOL_CB_DEF(display_filter_macro_uat, enabled, filter_expression_t)
UAT_CSTRING_CB_DEF(display_filter_macro_uat, label, filter_expression_t)
UAT_DISPLAY_FILTER_CB_DEF(display_filter_macro_uat, expression, filter_expression_t)
UAT_CSTRING_CB_DEF(display_filter_macro_uat, comment, filter_expression_t)
/*
* Create a new filter_expression and add it to the end of the list
* of filter_expressions.
*/
filter_expression_t*
filter_expression_new(const gchar *label, const gchar *expr,
const gchar *comment, const gboolean enabled)
{
filter_expression_t expression;
// UAT allocates its own memory and then deep-copies this structure in.
memset(&expression, 0, sizeof(expression));
expression.label = (gchar *)label;
expression.expression = (gchar *)expr;
expression.comment = (gchar *)comment;
expression.enabled = enabled;
/* XXX - This is just returned to make GTK GUI work. */
return (filter_expression_t*)uat_add_record(display_filter_macro_uat, &expression, TRUE);
}
void filter_expression_iterate_expressions(wmem_foreach_func func, void* user_data)
{
guint i;
for (i = 0; i < num_display_filter_macros; i++)
{
func(NULL, &display_filter_macros[i], user_data);
}
}
static void display_filter_free_cb(void*r) {
filter_expression_t* rec = (filter_expression_t*)r;
g_free(rec->label);
g_free(rec->expression);
g_free(rec->comment);
}
static void* display_filter_copy_cb(void* n, const void* o, size_t siz _U_) {
filter_expression_t* new_record = (filter_expression_t*)n;
const filter_expression_t* old_record = (const filter_expression_t*)o;
new_record->label = g_strdup(old_record->label);
new_record->expression = g_strdup(old_record->expression);
new_record->comment = g_strdup(old_record->comment);
new_record->enabled = old_record->enabled;
return new_record;
}
static uat_field_t display_filter_uat_flds[] = {
UAT_FLD_BOOL(display_filter_macro_uat, enabled, "Show in toolbar",
"Checked to add display filter button to toolbar"),
UAT_FLD_CSTRING(display_filter_macro_uat, label, "Button Label",
"Name of the display filter button"),
UAT_FLD_DISPLAY_FILTER(display_filter_macro_uat, expression, "Filter Expression",
"Filter expression to be applied by the button"),
UAT_FLD_CSTRING(display_filter_macro_uat, comment, "Comment",
"Comment describing filter expression"),
UAT_END_FIELDS
};
void filter_expression_register_uat(module_t* pref_module)
{
display_filter_macro_uat = uat_new("Display expressions",
sizeof(filter_expression_t), /* record size */
"dfilter_buttons", /* filename */
TRUE, /* from_profile */
&display_filter_macros, /* data_ptr */
&num_display_filter_macros, /* numitems_ptr */
0, /* Doesn't not explicitly effect dissection */
NULL, /* help */
display_filter_copy_cb, /* copy callback */
NULL, /* update callback */
display_filter_free_cb, /* free callback */
NULL, /* post update callback */
NULL, /* reset callback */
display_filter_uat_flds); /* UAT field definitions */
prefs_register_uat_preference(pref_module, "expressions",
"Display filter expressions",
"Macros for display filters",
display_filter_macro_uat);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/