Bug Summary

File:builds/wireshark/wireshark/ui/qt/main_application.cpp
Warning:line 482, column 13
Potential memory leak

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main_application.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-22/lib/clang/22 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/build/ui/qt -isystem /builds/wireshark/wireshark/ui/qt -isystem /builds/wireshark/wireshark/ui/qt/lua_debugger -isystem /usr/include/x86_64-linux-gnu/qt6/QtConcurrent -isystem /usr/include/x86_64-linux-gnu/qt6 -isystem /usr/include/x86_64-linux-gnu/qt6/QtCore -isystem /usr/lib/x86_64-linux-gnu/qt6/mkspecs/linux-g++ -isystem /usr/include/x86_64-linux-gnu/qt6/QtNetwork -isystem /usr/include/x86_64-linux-gnu/qt6/QtPrintSupport -isystem /usr/include/x86_64-linux-gnu/qt6/QtGui -isystem /usr/include/x86_64-linux-gnu/qt6/QtWidgets -isystem /usr/include/x86_64-linux-gnu/qt6/QtSvg -isystem /usr/include/x86_64-linux-gnu/qt6/QtMultimedia -isystem /usr/include/x86_64-linux-gnu/qt6/QtDBus -D CARES_NO_DEPRECATED -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D QT_CONCURRENT_LIB -D QT_CORE_LIB -D QT_DBUS_LIB -D QT_GUI_LIB -D QT_MULTIMEDIA_LIB -D QT_NETWORK_LIB -D QT_PRINTSUPPORT_LIB -D QT_SVG_LIB -D QT_WIDGETS_LIB -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build/ui/qt/qtui_autogen/include -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/x86_64-linux-gnu/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16/backward -internal-isystem /usr/lib/llvm-22/lib/clang/22/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=c++17 -fdeprecated-macro -ferror-limit 19 -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -fdwarf2-cfi-asm -o /builds/wireshark/wireshark/sbout/2026-08-30-100350-3660-1 -x c++ /builds/wireshark/wireshark/ui/qt/main_application.cpp
1/* main_application.cpp
2 *
3 * Wireshark - Network traffic analyzer
4 * By Gerald Combs <gerald@wireshark.org>
5 * Copyright 1998 Gerald Combs
6 *
7 * SPDX-License-Identifier: GPL-2.0-or-later
8 */
9
10// warning C4267: 'argument' : conversion from 'size_t' to 'int', possible loss of data
11#ifdef _MSC_VER
12#pragma warning(push)
13#pragma warning(disable : 4267)
14#endif
15
16#define WS_LOG_DOMAIN"Main" LOG_DOMAIN_MAIN"Main"
17
18#include "main_application.h"
19
20#include <algorithm>
21#include <errno(*__errno_location ()).h>
22
23#include "wsutil/filesystem.h"
24#include "app/application_flavor.h"
25
26#include "epan/addr_resolv.h"
27#include "epan/column-utils.h"
28#include "epan/disabled_protos.h"
29#include "epan/ftypes/ftypes.h"
30#include "epan/prefs.h"
31#include "epan/proto.h"
32#include "epan/tap.h"
33#include "epan/timestamp.h"
34#include "epan/decode_as.h"
35#include "epan/dfilter/dfilter-macro.h"
36
37#include "ui/commandline.h"
38#include "ui/decode_as_utils.h"
39#include "ui/preference_utils.h"
40#include "ui/language.h"
41#include "ui/recent.h"
42#include "ui/simple_dialog.h"
43#include "ui/util.h"
44
45#include <ui/qt/utils/qt_ui_utils.h>
46#include <ui/qt/utils/color_utils.h>
47#include <ui/qt/utils/software_update.h>
48#include <ui/qt/utils/theme_manager.h>
49#include "coloring_rules_dialog.h"
50
51#include "epan/color_filters.h"
52
53#include "extcap.h"
54#ifdef HAVE_LIBPCAP1
55#include <capture/iface_monitor.h>
56#endif
57
58#include "wsutil/filter_files.h"
59#include "ui/capture_globals.h"
60#include "ui/file_dialog.h"
61#include "ui/recent_utils.h"
62
63#ifdef HAVE_LIBPCAP1
64#include "ui/capture.h"
65#endif
66
67#include "wsutil/utf8_entities.h"
68
69#ifdef _WIN32
70# include "wsutil/file_util.h"
71# include <QMessageBox>
72# include <QSettings>
73#endif /* _WIN32 */
74
75#include <ui/qt/capture_file.h>
76
77#include <ui/qt/main_window.h>
78#include <ui/qt/manager/interface_list_manager.h>
79#include <ui/qt/main_status_bar.h>
80#include <ui/qt/utils/workspace_state.h>
81#include <ui/qt/utils/theme_styler.h>
82
83#include <QAction>
84#include <QApplication>
85#include <QColorDialog>
86#include <QDesktopServices>
87#include <QDir>
88#include <QEvent>
89#include <QFileOpenEvent>
90#include <QFontInfo>
91#include <QFontMetrics>
92#include <QLibraryInfo>
93#include <QLocale>
94#include <QMainWindow>
95#include <QMutableListIterator>
96#include <QProxyStyle>
97#include <QSocketNotifier>
98#include <QThreadPool>
99#include <QUrl>
100#include <qmath.h>
101
102#include <QMimeDatabase>
103
104#include <QStyleHints>
105
106#if QT_VERSION((6<<16)|(10<<8)|(2)) >= QT_VERSION_CHECK(6, 5, 0)((6<<16)|(5<<8)|(0)) && defined(Q_OS_WIN)
107#include <QStyleFactory>
108#endif
109
110#ifdef _MSC_VER
111#pragma warning(pop)
112#endif
113
114MainApplication *mainApp;
115
116// XXX - Copied from ui/gtk/file_dlg.c
117
118static QHash<int, QList<QAction *> > dynamic_menu_groups_;
119static QHash<int, QList<QAction *> > added_menu_groups_;
120static QHash<int, QList<QAction *> > removed_menu_groups_;
121
122QString MainApplication::window_title_separator_ = QString::fromUtf8(" " UTF8_MIDDLE_DOT"\u00b7" " ");
123
124// QMimeDatabase parses a large-ish XML file and can be slow to initialize.
125// Do so in a worker thread as early as possible.
126// https://github.com/lxde/pcmanfm-qt/issues/415
127class MimeDatabaseInitThread : public QRunnable
128{
129private:
130 void run() override
131 {
132 QMimeDatabase mime_db;
133 mime_db.mimeTypeForData(QByteArray());
134 }
135};
136
137void
138topic_action(topic_action_e action)
139{
140 if (mainApp) mainApp->helpTopicAction(action);
141}
142
143/* write all capture filenames of the menu to the user's recent file */
144extern "C" void menu_recent_file_write_all(FILE *rf) {
145
146 const QList<RecentFileInfo>& recentFiles = WorkspaceState::instance()->recentCaptureFiles();
147 int rFSize = static_cast<int>(recentFiles.size());
148 for (int i = 0; i < rFSize; i++) {
149 const RecentFileInfo& rfi = recentFiles.at(i);
150
151 QString cf_name = rfi.filename;
152 if (!cf_name.isNull()) {
153 fprintf (rf, RECENT_KEY_CAPTURE_FILE"recent.capture_file" ": %s\n", qUtf8Printable(cf_name)QtPrivate::asString(cf_name).toUtf8().constData());
154 }
155 }
156}
157
158void MainApplication::refreshPacketData()
159{
160 if (host_name_lookup_process()) {
161 emit addressResolutionChanged();
162 } else if (col_data_changed()) {
163 emit columnDataChanged();
164 }
165}
166
167void MainApplication::updateTaps()
168{
169 draw_tap_listeners(false);
170}
171
172QDir MainApplication::openDialogInitialDir() {
173 return QDir(get_open_dialog_initial_dir());
174}
175
176void MainApplication::setLastOpenDirFromFilename(const QString file_name)
177{
178 /* XXX - Use canonicalPath() instead of absolutePath()? */
179 QString directory = QDir::toNativeSeparators(QFileInfo(file_name).absolutePath());
180 /* XXX - printable? */
181 set_last_open_dir(qUtf8Printable(directory)QtPrivate::asString(directory).toUtf8().constData());
182}
183
184void MainApplication::helpTopicAction(topic_action_e action)
185{
186 QString url = gchar_free_to_qstring(topic_action_url(action));
187
188 if (!url.isEmpty()) {
189 QDesktopServices::openUrl(QUrl(QDir::fromNativeSeparators(url)));
190 }
191}
192
193void MainApplication::setConfigurationProfile(const char *profile_name, bool write_recent_file)
194{
195 char *rf_path;
196 int rf_open_errno;
197 char *err_msg = NULL__null;
198 const char* env_prefix = application_configuration_environment_prefix();
199
200 /* First check if profile exists */
201 if (!profile_exists(env_prefix, profile_name, false)) {
202 if (profile_exists(env_prefix, profile_name, true)) {
203 char *pf_dir_path, *pf_dir_path2, *pf_filename;
204 /* Copy from global profile */
205 if (create_persconffile_profile(env_prefix, profile_name, &pf_dir_path) == -1) {
206 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
207 "Can't create directory\n\"%s\":\n%s.",
208 pf_dir_path, g_strerror(errno(*__errno_location ())));
209
210 g_free(pf_dir_path)(__builtin_object_size ((pf_dir_path), 0) != ((size_t) - 1)) ?
g_free_sized (pf_dir_path, __builtin_object_size ((pf_dir_path
), 0)) : (g_free) (pf_dir_path);
211 }
212
213 if (copy_persconffile_profile(env_prefix, profile_name, profile_name, true, &pf_filename,
214 &pf_dir_path, &pf_dir_path2) == -1) {
215 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
216 "Can't copy file \"%s\" in directory\n\"%s\" to\n\"%s\":\n%s.",
217 pf_filename, pf_dir_path2, pf_dir_path, g_strerror(errno(*__errno_location ())));
218
219 g_free(pf_filename)(__builtin_object_size ((pf_filename), 0) != ((size_t) - 1)) ?
g_free_sized (pf_filename, __builtin_object_size ((pf_filename
), 0)) : (g_free) (pf_filename);
220 g_free(pf_dir_path)(__builtin_object_size ((pf_dir_path), 0) != ((size_t) - 1)) ?
g_free_sized (pf_dir_path, __builtin_object_size ((pf_dir_path
), 0)) : (g_free) (pf_dir_path);
221 g_free(pf_dir_path2)(__builtin_object_size ((pf_dir_path2), 0) != ((size_t) - 1))
? g_free_sized (pf_dir_path2, __builtin_object_size ((pf_dir_path2
), 0)) : (g_free) (pf_dir_path2);
222 }
223 } else {
224 /* No personal and no global profile exists */
225 return;
226 }
227 }
228
229 /* Then check if changing to another profile */
230 if (profile_name && strcmp (profile_name, get_profile_name()) == 0) {
231 return;
232 }
233
234 /* Get the current geometry, before writing it to disk */
235 emit profileChanging();
236
237 if (write_recent_file && profile_exists(env_prefix, get_profile_name(), false))
238 {
239 /* Write recent file for profile we are leaving, if it still exists */
240 write_profile_recent();
241 }
242
243 // Freeze the packet list early to avoid updating column data before doing a
244 // full redissection. The packet list will be thawed when redissection is done.
245 emit freezePacketList(true);
246
247 /* Set profile name and update the status bar */
248 set_profile_name (profile_name);
249 emit profileNameChanged(profile_name);
250
251 /* Apply new preferences */
252 readConfigurationFiles(true);
253
254 /* Reading the new profile's preferences reset every registered preference,
255 * including the ones that are shared by all of our profiles. Those aren't
256 * part of the profile we're leaving, so read them back in. */
257 extcap_read_preferences();
258
259 /* Apply command-line preferences */
260 commandline_options_reapply();
261 extcap_register_preferences(NULL__null, NULL__null);
262
263 /* Switching profile requires reloading the macro list. */
264 reloadDisplayFilterMacros();
265
266 if (!recent_read_profile_static(&rf_path, &rf_open_errno)) {
267 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK0x01,
268 "Could not open common recent file\n\"%s\": %s.",
269 rf_path, g_strerror(rf_open_errno));
270 g_free(rf_path)(__builtin_object_size ((rf_path), 0) != ((size_t) - 1)) ? g_free_sized
(rf_path, __builtin_object_size ((rf_path), 0)) : (g_free) (
rf_path);
271 }
272 if (recent.gui_fileopen_remembered_dir &&
273 test_for_directory(recent.gui_fileopen_remembered_dir) == EISDIR21) {
274 set_last_open_dir(recent.gui_fileopen_remembered_dir);
275 }
276 timestamp_set_type(recent.gui_time_format);
277 timestamp_set_precision(recent.gui_time_precision);
278 timestamp_set_seconds_type (recent.gui_seconds_format);
279
280 prefs_to_capture_opts(&global_capture_opts);
281 prefs_apply_all();
282#ifdef HAVE_LIBPCAP1
283 /* Re-apply interface display attributes from the new profile's prefs before
284 the preferencesChanged() emit below, so its listeners see fresh data. The
285 manager owns interface enumeration/attributes now. */
286 if (MainWindow *mw = mainWindow())
287 if (InterfaceListManager *mgr = mw->interfaceListManager())
288 mgr->reapplyInterfacePreferences();
289#endif
290
291 emit columnsChanged();
292 emit preferencesChanged();
293 emit recentPreferencesRead();
294 emit filterExpressionsChanged();
295 emit checkDisplayFilter();
296 emit captureFilterListChanged();
297 emit displayFilterListChanged();
298
299 /* Reload color filters */
300 if (!color_filters_reload(&err_msg, color_filter_add_cb, application_configuration_environment_prefix())) {
301 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01, "%s", err_msg);
302 g_free(err_msg)(__builtin_object_size ((err_msg), 0) != ((size_t) - 1)) ? g_free_sized
(err_msg, __builtin_object_size ((err_msg), 0)) : (g_free) (
err_msg);
303 }
304
305 /* Capture-interface prefs are now watched by InterfaceListManager, which
306 rescans when capture_no_interface_load / capture_no_extcap flips. A profile
307 switch can also change interface display attributes, so notify subscribers
308 (the manager owns the interface-list-changed signal now). */
309 MainWindow *mw = mainWindow();
310 if (mw && mw->interfaceListManager())
311 mw->interfaceListManager()->notifyListChanged();
312 emit packetDissectionChanged();
313
314 /* Write recent_common file to ensure last used profile setting is stored. */
315 write_recent();
316}
317
318void MainApplication::reloadLuaPluginsDelayed()
319{
320 QTimer::singleShot(0, this, [this]() {
321 /* Clear the reloading flag so the re-triggered reload
322 * is not blocked by the isReloadingLua() guard. */
323 setReloadingLua(false);
324 emit reloadLuaPlugins();
325 });
326}
327
328const QIcon &MainApplication::normalIcon()
329{
330 if (normal_icon_.isNull()) {
331 initializeIcons();
332 }
333 return normal_icon_;
334}
335
336const QIcon &MainApplication::captureIcon()
337{
338 if (capture_icon_.isNull()) {
339 initializeIcons();
340 }
341 return capture_icon_;
342}
343
344const QString MainApplication::windowTitleString(QStringList title_parts)
345{
346 QMutableStringListIterator tii(title_parts);
347 while (tii.hasNext()) {
348 QString ti = tii.next();
349 if (ti.isEmpty()) tii.remove();
350 }
351 title_parts.prepend(applicationName());
352 return title_parts.join(window_title_separator_);
353}
354
355void MainApplication::applyCustomColorsFromRecent()
356{
357 int i = 0;
358 bool ok;
359 for (GList *custom_color = recent.custom_colors; custom_color; custom_color = custom_color->next) {
360 QRgb rgb = QString((const char *)custom_color->data).toUInt(&ok, 16);
361 if (ok) {
362 QColorDialog::setCustomColor(i++, QColor(rgb));
363 }
364 }
365}
366
367// Return the first top-level MainWindow.
368MainWindow *MainApplication::mainWindow()
369{
370 foreach (QWidget *tlw, topLevelWidgets())for (auto _container_370 = QtPrivate::qMakeForeachContainer(topLevelWidgets
()); _container_370.i != _container_370.e; ++_container_370.i
) if (QWidget *tlw = *_container_370.i; false) {} else {
371 MainWindow *tlmw = qobject_cast<MainWindow *>(tlw);
372 if (tlmw && tlmw->isVisible()) {
373 return tlmw;
374 }
375 }
376 return nullptr;
377}
378
379void MainApplication::storeCustomColorsInRecent()
380{
381 if (QColorDialog::customCount()) {
382 prefs_clear_string_list(recent.custom_colors);
383 recent.custom_colors = NULL__null;
384 for (int i = 0; i < QColorDialog::customCount(); i++) {
385 QRgb rgb = QColorDialog::customColor(i).rgb();
386 recent.custom_colors = g_list_append(recent.custom_colors, ws_strdup_printf("%08x", rgb)wmem_strdup_printf(__null, "%08x", rgb));
387 }
388 }
389}
390
391bool MainApplication::event(QEvent *event)
392{
393 QString display_filter = NULL__null;
394 if (event->type() == QEvent::FileOpen) {
395 QFileOpenEvent *foe = static_cast<QFileOpenEvent *>(event);
396 if (foe && foe->file().length() > 0) {
397 QString cf_path(foe->file());
398 if (initialized_) {
399 emit openCaptureFile(cf_path, display_filter, WTAP_TYPE_AUTO0);
400 } else {
401 pending_open_files_.append(cf_path);
402 }
403 }
404 return true;
405 }
406 return QApplication::event(event);
407}
408
409void MainApplication::cleanup()
410{
411 SoftwareUpdate::instance()->cleanup();
412 storeCustomColorsInRecent();
413 // Write the user's recent file(s) to disk.
414 write_profile_recent();
415 write_recent();
416
417 // We might end up here via exit_application.
418 QThreadPool::globalInstance()->waitForDone();
419}
420
421MainApplication::MainApplication(int &argc, char **argv) :
422 QApplication(argc, argv),
423 initialized_(false),
424 is_reloading_lua_(false),
425 if_notifier_(NULL__null),
426 active_captures_(0)
427#if defined(Q_OS_MAC) || defined(Q_OS_WIN)
428 , normal_icon_(windowIcon())
429#endif
430{
431 mainApp = this;
432
433 MimeDatabaseInitThread *mime_db_init_thread = new(MimeDatabaseInitThread);
434 QThreadPool::globalInstance()->start(mime_db_init_thread);
435
436 Q_INIT_RESOURCE(about)do { extern int qInitResources_about (); qInitResources_about
(); } while (false);
1
Loop condition is false. Exiting loop
→
437 Q_INIT_RESOURCE(i18n)do { extern int qInitResources_i18n (); qInitResources_i18n (
); } while (false);
2
←
Loop condition is false. Exiting loop
→
438 Q_INIT_RESOURCE(layout)do { extern int qInitResources_layout (); qInitResources_layout
(); } while (false);
3
←
Loop condition is false. Exiting loop
→
439 Q_INIT_RESOURCE(stock_icons)do { extern int qInitResources_stock_icons (); qInitResources_stock_icons
(); } while (false);
4
←
Loop condition is false. Exiting loop
→
440 Q_INIT_RESOURCE(languages)do { extern int qInitResources_languages (); qInitResources_languages
(); } while (false);
5
←
Loop condition is false. Exiting loop
→
441
442 // Initialize the ThemeManager as early as possible so that any
443 // widget constructed afterwards can resolve themed stylesheets and
444 // color tokens. This must run after QApplication's base ctor (so
445 // that the palette is queryable for light/dark detection) but
446 // before any UI is built. recent_common has already been read in
447 // main()/stratoshark_main() prior to constructing this application
448 // object, so we can read any configured themes as well.
449 // Theme selection is persisted in recent_common (recent.gui_theme_name),
450 // not in the preferences file — so it survives profile switches and
451 // stays global to the install. Empty / missing value, or the legacy
452 // "default" sentinel, get resolved by ThemeManager itself to the
453 // current flavor's preferred default (wireshark / stratoshark).
454 ThemeManager::init(ThemeManager::resolveThemeName(
455 QString::fromUtf8(recent.gui_theme_name)));
456
457#ifdef Q_OS_WIN
458 /* RichEd20.DLL is needed for native file dialog filter entries. */
459 ws_load_library("riched20.dll");
460#endif // Q_OS_WIN
461
462 // We use a lot of style sheets that base their colors on the main
463 // application palette, so this works better.
464 setAttribute(Qt::AA_UseStyleSheetPropagationInWidgetStyles, true);
465
466 // Throw various settings at the wall with the hope that one of them will
467 // enable context menu shortcuts QTBUG-69452, QTBUG-109590
468 setAttribute(Qt::AA_DontShowShortcutsInContextMenus, false);
469 styleHints()->setShowShortcutsInContextMenus(true);
470
471 packet_data_timer_.setParent(this);
472 connect(&packet_data_timer_, &QTimer::timeout, this, &MainApplication::refreshPacketData);
473 packet_data_timer_.start(1000);
474
475 tap_update_timer_.setParent(this);
476 // tap_update_timer interval is set when preferences are set before init
477 connect(this, &MainApplication::appInitialized, &tap_update_timer_, [&]() { tap_update_timer_.start(); });
478 connect(&tap_update_timer_, &QTimer::timeout, this, &MainApplication::updateTaps);
479
480 setStyle(new ThemeStyler);
6
←
Memory is allocated
→
481
482 connect(qApp(static_cast<QApplication *>(QCoreApplication::instance
())), &QApplication::aboutToQuit, this, &MainApplication::cleanup);
7
←
Potential memory leak
483}
484
485MainApplication::~MainApplication()
486{
487 mainApp = NULL__null;
488 clearDynamicMenuGroupItems();
489}
490
491void MainApplication::emitAppSignal(AppSignal signal)
492{
493 switch (signal) {
494 case ColumnsChanged:
495 emit columnsChanged();
496 break;
497 case CaptureFilterListChanged:
498 emit captureFilterListChanged();
499 break;
500 case DisplayFilterListChanged:
501 emit displayFilterListChanged();
502 break;
503 case FilterExpressionsChanged:
504 emit filterExpressionsChanged();
505 break;
506 case NameResolutionChanged:
507 emit addressResolutionChanged();
508 break;
509 case PreferencesChanged:
510 tap_update_timer_.setInterval(prefs.tap_update_interval);
511 emit preferencesChanged();
512 break;
513 case PacketDissectionChanged:
514 emit packetDissectionChanged();
515 break;
516 case RecentPreferencesRead:
517 emit recentPreferencesRead();
518 break;
519 case FieldsChanged:
520 emit fieldsChanged();
521 break;
522 case FreezePacketList:
523 emit freezePacketList(false);
524 break;
525 case AggregationChanged:
526 emit aggregationChanged();
527 break;
528 default:
529 break;
530 }
531}
532
533// Flush any collected app signals.
534//
535// On macOS emitting PacketDissectionChanged from a dialog can
536// render the application unusable:
537// https://gitlab.com/wireshark/wireshark/-/issues/11361
538// https://gitlab.com/wireshark/wireshark/-/issues/11448
539// Work around the problem by queueing up app signals and emitting them
540// after the dialog is closed.
541//
542// The following bugs might be related although they don't describe the
543// exact behavior we're working around here:
544// https://bugreports.qt.io/browse/QTBUG-38512
545// https://bugreports.qt.io/browse/QTBUG-38600
546void MainApplication::flushAppSignals()
547{
548 while (!app_signals_.isEmpty()) {
549 mainApp->emitAppSignal(app_signals_.takeFirst());
550 }
551}
552
553void MainApplication::emitStatCommandSignal(const QString &menu_path, const char *arg, void *userdata)
554{
555 emit openStatCommandDialog(menu_path, arg, userdata);
556}
557
558void MainApplication::emitTapParameterSignal(const QString cfg_abbr, const QString arg, void *userdata)
559{
560 emit openTapParameterDialog(cfg_abbr, arg, userdata);
561}
562
563// XXX Combine statistics and funnel routines into addGroupItem + groupItems?
564void MainApplication::addDynamicMenuGroupItem(int group, QAction *sg_action)
565{
566 if (!dynamic_menu_groups_.contains(group)) {
567 dynamic_menu_groups_[group] = QList<QAction *>();
568 }
569 dynamic_menu_groups_[group] << sg_action;
570}
571
572void MainApplication::appendDynamicMenuGroupItem(int group, QAction *sg_action)
573{
574 if (!added_menu_groups_.contains(group)) {
575 added_menu_groups_[group] = QList<QAction *>();
576 }
577 added_menu_groups_[group] << sg_action;
578 addDynamicMenuGroupItem(group, sg_action);
579}
580
581void MainApplication::removeDynamicMenuGroupItem(int group, QAction *sg_action)
582{
583 if (!removed_menu_groups_.contains(group)) {
584 removed_menu_groups_[group] = QList<QAction *>();
585 }
586 removed_menu_groups_[group] << sg_action;
587 dynamic_menu_groups_[group].removeAll(sg_action);
588}
589
590void MainApplication::clearDynamicMenuGroupItems()
591{
592 foreach (int group, dynamic_menu_groups_.keys())for (auto _container_592 = QtPrivate::qMakeForeachContainer(dynamic_menu_groups_
.keys()); _container_592.i != _container_592.e; ++_container_592
.i) if (int group = *_container_592.i; false) {} else {
593 dynamic_menu_groups_[group].clear();
594 }
595}
596
597QList<QAction *> MainApplication::dynamicMenuGroupItems(int group)
598{
599 if (!dynamic_menu_groups_.contains(group)) {
600 return QList<QAction *>();
601 }
602
603 QList<QAction *> sgi_list = dynamic_menu_groups_[group];
604 std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
605 return sgi_list;
606}
607
608QList<QAction *> MainApplication::addedMenuGroupItems(int group)
609{
610 if (!added_menu_groups_.contains(group)) {
611 return QList<QAction *>();
612 }
613
614 QList<QAction *> sgi_list = added_menu_groups_[group];
615 std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
616 return sgi_list;
617}
618
619QList<QAction *> MainApplication::removedMenuGroupItems(int group)
620{
621 if (!removed_menu_groups_.contains(group)) {
622 return QList<QAction *>();
623 }
624
625 QList<QAction *> sgi_list = removed_menu_groups_[group];
626 std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
627 return sgi_list;
628}
629
630void MainApplication::clearAddedMenuGroupItems()
631{
632 foreach (int group, added_menu_groups_.keys())for (auto _container_632 = QtPrivate::qMakeForeachContainer(added_menu_groups_
.keys()); _container_632.i != _container_632.e; ++_container_632
.i) if (int group = *_container_632.i; false) {} else {
633 added_menu_groups_[group].clear();
634 }
635}
636
637void MainApplication::clearRemovedMenuGroupItems()
638{
639 foreach (int group, removed_menu_groups_.keys())for (auto _container_639 = QtPrivate::qMakeForeachContainer(removed_menu_groups_
.keys()); _container_639.i != _container_639.e; ++_container_639
.i) if (int group = *_container_639.i; false) {} else {
640 foreach (QAction *action, removed_menu_groups_[group])for (auto _container_640 = QtPrivate::qMakeForeachContainer(removed_menu_groups_
[group]); _container_640.i != _container_640.e; ++_container_640
.i) if (QAction *action = *_container_640.i; false) {} else {
641 delete action;
642 }
643 removed_menu_groups_[group].clear();
644 }
645}
646
647#ifdef HAVE_LIBPCAP1
648
649static void
650iface_mon_event_cb(const char *iface, int added, int up)
651{
652 int present = 0;
653 unsigned ifs, j;
654 interface_t *device;
655 interface_options *interface_opts;
656
657 for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
658 device = &g_array_index(global_capture_opts.all_ifaces, interface_t, ifs)(((interface_t*) (void *) (global_capture_opts.all_ifaces)->
data) [(ifs)]);
659 if (strcmp(device->name, iface) == 0) {
660 present = 1;
661 if (!up) {
662 /*
663 * Interface went down or disappeared; remove all instances
664 * of it from the current list of interfaces selected
665 * for capturing.
666 */
667 for (j = 0; j < global_capture_opts.ifaces->len; j++) {
668 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, j)(((interface_options*) (void *) (global_capture_opts.ifaces)->
data) [(j)]);
669 if (strcmp(interface_opts->name, device->name) == 0) {
670 capture_opts_del_iface(&global_capture_opts, j);
671 }
672 }
673 }
674 }
675 }
676
677 mainApp->emitLocalInterfaceEvent(iface, added, up);
678 if (present != up) {
679 /*
680 * We've been told that there's a new interface or that an old
681 * interface is gone; reload the local interface list.
682 *
683 * XXX: We also want to reload the local interface list if [what
684 * we can retrieve about] the capabilities of the device have changed.
685 * Ideally we'd update the capabilities of just the one device in
686 * the cache and signal that the list has been updated, instead of
687 * freeing the entire cache and scanning again - but some extcaps
688 * depend on other interfaces being up; e.g. by default androiddump
689 * tries to connect to the loopback interface to look for adb running,
690 * so if the loopback interface changes so does the status of
691 * androiddump.
692 *
693 * On Linux, at least, you can't get the capabilities from a down
694 * interface, but it's still present in all_ifaces - dumpcap returns
695 * it in the list, and we show it so the user can get a status / error
696 * message when trying to capture on it instead of it vanishing.
697 * So if both present and up are true, then we still want to refresh
698 * to update the capabilities and restart the stats.
699 *
700 * We also store the address in all_ifaces and show them to the user,
701 * so we probably should monitor those events as well and update
702 * the interface list appropriately when those change.
703 */
704 MainWindow *mainWindow = mainApp->mainWindow();
705 if (mainWindow && mainWindow->interfaceListManager())
706 mainWindow->interfaceListManager()->requestRefresh();
707 }
708}
709
710#endif
711
712void MainApplication::ifChangeEventsAvailable()
713{
714#ifdef HAVE_LIBPCAP1
715 /*
716 * Something's readable from the descriptor for interface
717 * monitoring.
718 *
719 * Have the interface-monitoring code Read whatever interface-change
720 * events are available, and call the callback for them.
721 */
722 iface_mon_event();
723#endif
724}
725
726void MainApplication::emitLocalInterfaceEvent(const char *ifname, int added, int up)
727{
728 emit localInterfaceEvent(ifname, added, up);
729}
730
731void MainApplication::whenInitializedDispatch(const QObject *context, std::function<void()> fn)
732{
733 // POLICY DECISION (your input shapes behavior here):
734 //
735 // We get here only when a caller registers via whenInitialized() *after*
736 // appInitialized() has already fired. The not-yet-initialized path runs the
737 // callback later, from the event loop, once construction is long finished.
738 // How should the already-initialized path behave?
739 //
740 // A) Synchronous: fn(); right now. Simplest. But the callback runs while
741 // the caller's constructor is still on the stack -- the object may be
742 // only partly built, and any code after the whenInitialized() call in
743 // that constructor runs *after* the callback. Timing differs from the
744 // deferred path.
745 //
746 // B) Deferred to the event loop (e.g. QTimer::singleShot(0, context, fn)
747 // or QMetaObject::invokeMethod(..., Qt::QueuedConnection)): callback
748 // always runs after the current call returns, matching the signal path
749 // exactly, so callers see one consistent ordering. Costs one event-loop
750 // turn and needs the context-still-alive guarantee.
751 //
752 // Option A (current behavior) is intentional for now: it exactly reproduces
753 // the old open-coded `if (isInitialized()) doThing();` -- a synchronous call
754 // on the caller's stack -- so routing those sites through whenInitialized()
755 // is a pure no-op refactor. Option B is the intended end state, but it
756 // shifts the already-initialized callback by one event-loop turn and so
757 // changes ordering for every converted site at once; switch to it only
758 // behind broader ordering/lifetime tests (dialogs opened mid-session,
759 // welcome/interface frames at cold start, context destroyed same-turn).
760 //
761 // To switch, delete the fn() below and enable the deferred dispatch:
762 //
763 // QTimer::singleShot(0, const_cast<QObject *>(context), std::move(fn));
764 //
765 // (context is the receiver, so the call is dropped if it dies first, and
766 // runs on context's thread -- matching the connect() branch.)
767 Q_UNUSED(context)(void)context; // option A ignores context; option B uses it.
768 fn(); // option A: synchronous, matches legacy behavior.
769}
770
771void MainApplication::allSystemsGo()
772{
773 QString display_filter = NULL__null;
774 initialized_ = true;
775 emit appInitialized();
776 while (pending_open_files_.length() > 0) {
777 emit openCaptureFile(pending_open_files_.front(), display_filter, WTAP_TYPE_AUTO0);
778 pending_open_files_.pop_front();
779 }
780
781 bool sideBarVisible = recent.gui_welcome_page_sidebar_tips_visible ||
782 recent.gui_welcome_page_sidebar_learn_visible;
783 SoftwareUpdate::instance()->init(!sideBarVisible);
784
785#ifdef HAVE_LIBPCAP1
786 int err;
787 err = iface_mon_start(&iface_mon_event_cb);
788 if (err == 0) {
789 if_notifier_ = new QSocketNotifier(iface_mon_get_sock(),
790 QSocketNotifier::Read, this);
791 connect(if_notifier_, &QSocketNotifier::activated, this, &MainApplication::ifChangeEventsAvailable);
792 }
793#endif
794}
795
796_e_prefs *MainApplication::readConfigurationFiles(bool reset)
797{
798 e_prefs *prefs_p;
799
800 if (reset) {
801 //
802 // Reset current preferences and enabled/disabled protocols and
803 // heuristic dissectors before reading.
804 // (Needed except when this is called at startup.)
805 //
806 prefs_reset(application_configuration_environment_prefix(), application_columns(), application_num_columns());
807 proto_reenable_all();
808 }
809
810 /* Load libwireshark settings from the current profile. */
811 prefs_p = epan_load_settings();
812
813 return prefs_p;
814}
815
816static void switchTranslator(QTranslator& myTranslator, const QLocale &locale, const QString& filename, const QStringList &searchPath)
817{
818 mainApp->removeTranslator(&myTranslator);
819 for (const QString &path : searchPath) {
820 if (myTranslator.load(locale, filename, QStringLiteral("_")(QString(QtPrivate::qMakeStringPrivate(u"" "_"))), path)) {
821 mainApp->installTranslator(&myTranslator);
822 return;
823 }
824 }
825 if (locale.language() != QLocale::C) {
826 /* Don't compare the locale itself, see:
827 * https://doc.qt.io/qt-6/qlocale.html#operator-eq-eq
828 *
829 * Note that the ordered list of languages that were tried is that of
830 * locale.uiLanguages(); the first language in that list is not
831 * necessarily locale.language(), especially on Windows (See #17221.)
832 */
833 qWarningQMessageLogger(static_cast<const char *>("ui/qt/main_application.cpp"
), 833, static_cast<const char *>(__PRETTY_FUNCTION__))
.warning() << "Couldn't load" << filename << "translations." << "Searched:" << searchPath;
834 }
835}
836
837void MainApplication::loadLanguage(const QString newLanguage)
838{
839 QLocale locale;
840 const char* env_prefix = application_configuration_environment_prefix();
841
842 if (newLanguage.isEmpty() || newLanguage == USE_SYSTEM_LANGUAGE"system") {
843 locale = QLocale::system();
844 } else {
845 locale = QLocale(newLanguage);
846 }
847
848 QLocale::setDefault(locale);
849
850 // Search path list ordered by priority. Prefer personal configuration
851 // to global datadir to embedded resources to Qt global directory.
852 QStringList searchPath;
853 searchPath.emplaceBack(gchar_free_to_qstring(get_persconffile_path("languages", false, env_prefix)));
854 searchPath.emplaceBack(QStringLiteral("%1/languages")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/languages"))).arg(get_datafile_dir(env_prefix)));
855 searchPath.emplaceBack(QStringLiteral(":/i18n/")(QString(QtPrivate::qMakeStringPrivate(u"" ":/i18n/"))));
856
857#if QT_VERSION((6<<16)|(10<<8)|(2)) >= QT_VERSION_CHECK(6, 8, 0)((6<<16)|(8<<8)|(0))
858 searchPath.append(QLibraryInfo::paths(QLibraryInfo::TranslationsPath));
859#else
860 searchPath.emplaceBack(QLibraryInfo::path(QLibraryInfo::TranslationsPath));
861#endif
862
863 // Translations are searched for in the reverse order in which they were
864 // installed, so install the Qt generic translator first and ours last.
865 switchTranslator(mainApp->translatorQt, locale, QStringLiteral("qt")(QString(QtPrivate::qMakeStringPrivate(u"" "qt"))), searchPath);
866
867 // XXX - Yes, the translation files are also wireshark_%1.qm for Stratoshark.
868 // There is a stratoshark_en.[ts|qm] file too (for plurals?) though I'm
869 // not sure if it's used properly.
870 switchTranslator(mainApp->translator, locale, QStringLiteral("wireshark")(QString(QtPrivate::qMakeStringPrivate(u"" "wireshark"))), searchPath);
871}
872
873void MainApplication::doTriggerMenuItem(MainMenuItem menuItem)
874{
875 switch (menuItem)
876 {
877 case FileOpenDialog:
878 emit openCaptureFile(QString(), QString(), WTAP_TYPE_AUTO0);
879 break;
880 case CaptureOptionsDialog:
881 emit openCaptureOptions();
882 break;
883 }
884}
885
886void MainApplication::captureEventHandler(CaptureEvent ev)
887{
888 switch(ev.captureContext())
889 {
890#ifdef HAVE_LIBPCAP1
891 case CaptureEvent::Update:
892 case CaptureEvent::Fixed:
893 switch (ev.eventType())
894 {
895 case CaptureEvent::Prepared:
896 iface_mon_enable(true);
897 break;
898 case CaptureEvent::Started:
899 active_captures_++;
900 emit captureActive(active_captures_);
901 break;
902 case CaptureEvent::Finished:
903 active_captures_--;
904 emit captureActive(active_captures_);
905 // A refresh requested during the capture was deferred by
906 // InterfaceListManager (capture-active guard) and is serviced now via
907 // the captureActive signal above; no explicit re-trigger needed.
908 break;
909 default:
910 break;
911 }
912 break;
913#endif
914 case CaptureEvent::File:
915 case CaptureEvent::Reload:
916 case CaptureEvent::Rescan:
917 switch (ev.eventType())
918 {
919 case CaptureEvent::Started:
920 QTimer::singleShot(TAP_UPDATE_DEFAULT_INTERVAL3000 / 5, this, SLOT(updateTaps())qFlagLocation("1" "updateTaps()" "\0" "ui/qt/main_application.cpp"
":" "920"));
921 QTimer::singleShot(TAP_UPDATE_DEFAULT_INTERVAL3000 / 2, this, SLOT(updateTaps())qFlagLocation("1" "updateTaps()" "\0" "ui/qt/main_application.cpp"
":" "921"));
922 break;
923 case CaptureEvent::Finished:
924 updateTaps();
925 break;
926 default:
927 break;
928 }
929 break;
930 default:
931 break;
932 }
933}
934
935void MainApplication::pushStatus(StatusInfo status, const QString &message, const QString &messagetip)
936{
937 MainWindow * mw = mainWindow();
938 if (! mw) {
939 return;
940 }
941
942 MainStatusBar * bar = mw->statusBar();
943 if (! bar) {
944 return;
945 }
946
947 switch(status)
948 {
949 case FilterSyntax:
950 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FILTER, message);
951 break;
952 case FieldStatus:
953 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FIELD, message);
954 break;
955 case FileStatus:
956 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FILE, message, messagetip);
957 break;
958 case ByteStatus:
959 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_BYTE, message);
960 break;
961 case BusyStatus:
962 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_PROGRESS, message, messagetip);
963 break;
964 case TemporaryStatus:
965 bar->pushGenericStatus(MainStatusBar::STATUS_CTX_TEMPORARY, message);
966 break;
967 }
968}
969
970void MainApplication::popStatus(StatusInfo status)
971{
972 MainWindow * mw = mainWindow();
973 if (! mw) {
974 return;
975 }
976
977 MainStatusBar * bar = mw->statusBar();
978 if (! bar) {
979 return;
980 }
981
982 switch(status)
983 {
984 case FilterSyntax:
985 bar->popGenericStatus(MainStatusBar::STATUS_CTX_FILTER);
986 break;
987 case FieldStatus:
988 bar->popGenericStatus(MainStatusBar::STATUS_CTX_FIELD);
989 break;
990 case FileStatus:
991 bar->popGenericStatus(MainStatusBar::STATUS_CTX_FILE);
992 break;
993 case ByteStatus:
994 bar->popGenericStatus(MainStatusBar::STATUS_CTX_BYTE);
995 break;
996 case BusyStatus:
997 bar->popGenericStatus(MainStatusBar::STATUS_CTX_PROGRESS);
998 break;
999 case TemporaryStatus:
1000 bar->popGenericStatus(MainStatusBar::STATUS_CTX_TEMPORARY);
1001 break;
1002 }
1003}
1004
1005void MainApplication::gotoFrame(int frame)
1006{
1007 MainWindow * mw = mainWindow();
1008 if (! mw) {
1009 return;
1010 }
1011
1012 mw->gotoFrame(frame);
1013}
1014
1015void MainApplication::reloadDisplayFilterMacros()
1016{
1017 dfilter_macro_reload(application_configuration_environment_prefix());
1018 // The signal is needed when the display filter grammar changes for
1019 // any reason (not just "fields".)
1020 mainApp->emitAppSignal(MainApplication::FieldsChanged);
1021}