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/* preference_utils.c
* Routines for handling preferences
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <errno.h>
#include <epan/column.h>
#include <wsutil/filesystem.h>
#include <epan/prefs.h>
#include <epan/prefs-int.h>
#include <epan/packet.h>
#include <epan/decode_as.h>
#include <epan/uat-int.h>
#ifdef HAVE_LIBPCAP
#include "capture_opts.h"
#include "ui/capture_globals.h"
#endif
#include "ui/preference_utils.h"
#include "ui/simple_dialog.h"
#ifdef HAVE_LIBPCAP
gboolean auto_scroll_live;
#endif
/* Fill in capture options with values from the preferences */
void
prefs_to_capture_opts(void)
{
#ifdef HAVE_LIBPCAP
/* Set promiscuous mode from the preferences setting. */
/* the same applies to other preferences settings as well. */
global_capture_opts.default_options.promisc_mode = prefs.capture_prom_mode;
global_capture_opts.use_pcapng = prefs.capture_pcap_ng;
global_capture_opts.show_info = prefs.capture_show_info;
global_capture_opts.real_time_mode = prefs.capture_real_time;
auto_scroll_live = prefs.capture_auto_scroll;
#endif /* HAVE_LIBPCAP */
}
void
prefs_main_write(void)
{
int err;
char *pf_dir_path;
char *pf_path;
/* Create the directory that holds personal configuration files, if
necessary. */
if (create_persconffile_dir(&pf_dir_path) == -1) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Can't create directory\n\"%s\"\nfor preferences file: %s.", pf_dir_path,
g_strerror(errno));
g_free(pf_dir_path);
} else {
/* Write the preferencs out. */
err = write_prefs(&pf_path);
if (err != 0) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Can't open preferences file\n\"%s\": %s.", pf_path,
g_strerror(err));
g_free(pf_path);
}
}
}
static unsigned int
prefs_store_ext_helper(const char * module_name, const char *pref_name, const char *pref_value)
{
module_t * module = NULL;
pref_t * pref = NULL;
unsigned int pref_changed = 0;
if ( ! prefs_is_registered_protocol(module_name))
return 0;
module = prefs_find_module(module_name);
if ( ! module )
return 0;
pref = prefs_find_preference(module, pref_name);
if (!pref)
return 0;
if (prefs_get_type(pref) == PREF_STRING )
{
pref_changed |= prefs_set_string_value(pref, pref_value, pref_stashed);
if ( ! pref_changed || prefs_get_string_value(pref, pref_stashed) != 0 )
pref_changed |= prefs_set_string_value(pref, pref_value, pref_current);
}
return pref_changed;
}
unsigned int
prefs_store_ext(const char * module_name, const char *pref_name, const char *pref_value)
{
unsigned int changed_flags = prefs_store_ext_helper(module_name, pref_name, pref_value);
if ( changed_flags )
{
prefs_main_write();
prefs_apply_all();
prefs_to_capture_opts();
return changed_flags;
}
return 0;
}
gboolean
prefs_store_ext_multiple(const char * module, GHashTable * pref_values)
{
gboolean pref_changed = FALSE;
GList * keys = NULL;
if ( ! prefs_is_registered_protocol(module))
return pref_changed;
keys = g_hash_table_get_keys(pref_values);
if ( ! keys )
return pref_changed;
for ( GList * key = keys; key != NULL; key = g_list_next(key) )
{
gchar * pref_name = (gchar *)key->data;
gchar * pref_value = (gchar *) g_hash_table_lookup(pref_values, key->data);
if ( pref_name && pref_value )
{
if ( prefs_store_ext_helper(module, pref_name, pref_value) )
pref_changed = TRUE;
}
}
g_list_free(keys);
if ( pref_changed )
{
prefs_main_write();
prefs_apply_all();
prefs_to_capture_opts();
}
return TRUE;
}
gint
column_prefs_add_custom(gint fmt, const gchar *title, const gchar *custom_fields, gint position)
{
GList *clp;
fmt_data *cfmt, *last_cfmt;
gint colnr;
cfmt = (fmt_data *) g_malloc(sizeof(fmt_data));
/*
* Because a single underscore is interpreted as a signal that the next character
* is going to be marked as accelerator for this header (i.e. is going to be
* shown underlined), escape it be inserting a second consecutive underscore.
*/
cfmt->title = g_strdup(title);
cfmt->fmt = fmt;
cfmt->custom_fields = g_strdup(custom_fields);
cfmt->custom_occurrence = 0;
cfmt->resolved = TRUE;
colnr = g_list_length(prefs.col_list);
if (custom_fields) {
cfmt->visible = TRUE;
clp = g_list_last(prefs.col_list);
last_cfmt = (fmt_data *) clp->data;
if (position > 0 && position <= colnr) {
/* Custom fields may be added at any position, depending on the given argument */
prefs.col_list = g_list_insert(prefs.col_list, cfmt, position);
} else if (last_cfmt->fmt == COL_INFO) {
/* Last column is COL_INFO, add custom column before this */
colnr -= 1;
prefs.col_list = g_list_insert(prefs.col_list, cfmt, colnr);
} else {
prefs.col_list = g_list_append(prefs.col_list, cfmt);
}
} else {
cfmt->visible = FALSE; /* Will be set to TRUE in visible_toggled() when added to list */
prefs.col_list = g_list_append(prefs.col_list, cfmt);
}
return colnr;
}
void
column_prefs_remove_link(GList *col_link)
{
fmt_data *cfmt;
if (!col_link || !col_link->data) return;
cfmt = (fmt_data *) col_link->data;
g_free(cfmt->title);
g_free(cfmt->custom_fields);
g_free(cfmt);
prefs.col_list = g_list_remove_link(prefs.col_list, col_link);
}
void
column_prefs_remove_nth(gint col)
{
column_prefs_remove_link(g_list_nth(prefs.col_list, col));
}
void save_migrated_uat(const char *uat_name, gboolean *old_pref)
{
char *err = NULL;
if (!uat_save(uat_get_table_by_name(uat_name), &err)) {
g_warning("Unable to save %s: %s", uat_name, err);
g_free(err);
return;
}
// Ensure that any old preferences are removed after successful migration.
if (*old_pref) {
*old_pref = FALSE;
prefs_main_write();
}
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* 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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