### Bug Summary

File: | builds/wireshark/wireshark/ui/qt/main_application.cpp
Warning: | line 483, 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/QtCore5Compat -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_CORE5COMPAT_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/2026-06-05-100346-3529-1 -x c++ /builds/wireshark/wireshark/ui/qt/main_application.cpp

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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/iface_lists.h"
41 | #include "ui/language.h"
42 | #include "ui/recent.h"
43 | #include "ui/simple_dialog.h"
44 | #include "ui/util.h"
45 |
46 | #include <ui/qt/utils/qt_ui_utils.h>
47 | #include <ui/qt/utils/color_utils.h>
48 | #include <ui/qt/utils/software_update.h>
49 | #include <ui/qt/utils/theme_manager.h>
50 | #include "coloring_rules_dialog.h"
51 |
52 | #include "epan/color_filters.h"
53 |
54 | #include "extcap.h"
55 | #ifdef HAVE_LIBPCAP1
56 | #include <capture/iface_monitor.h>
57 | #endif
58 |
59 | #include "wsutil/filter_files.h"
60 | #include "ui/capture_globals.h"
61 | #include "ui/file_dialog.h"
62 | #include "ui/recent_utils.h"
63 |
64 | #ifdef HAVE_LIBPCAP1
65 | #include "ui/capture.h"
66 | #endif
67 |
68 | #include "wsutil/utf8_entities.h"
69 |
70 | #ifdef _WIN32
71 | # include "wsutil/file_util.h"
72 | # include <QMessageBox>
73 | # include <QSettings>
74 | #endif /* _WIN32 */
75 |
76 | #include <ui/qt/capture_file.h>
77 |
78 | #include <ui/qt/main_window.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 |
114 | MainApplication *mainApp;
115 |
116 | // XXX - Copied from ui/gtk/file_dlg.c
117 |
118 | static QHash<int, QList<QAction *> > dynamic_menu_groups_;
119 | static QHash<int, QList<QAction *> > added_menu_groups_;
120 | static QHash<int, QList<QAction *> > removed_menu_groups_;
121 |
122 | QString 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
127 | class MimeDatabaseInitThread : public QRunnable
128 | {
129 | private:
130 | void run()
131 | {
132 | QMimeDatabase mime_db;
133 | mime_db.mimeTypeForData(QByteArray());
134 | }
135 | };
136 |
137 | void
138 | topic_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 */
144 | extern "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 |
158 | void MainApplication::refreshPacketData()
159 | {
160 | if (host_name_lookup_process()) {
161 | emit addressResolutionChanged();
162 | } else if (col_data_changed()) {
163 | emit columnDataChanged();
164 | }
165 | }
166 |
167 | void MainApplication::updateTaps()
168 | {
169 | draw_tap_listeners(false);
170 | }
171 |
172 | QDir MainApplication::openDialogInitialDir() {
173 | return QDir(get_open_dialog_initial_dir());
174 | }
175 |
176 | void 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 |
184 | void 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 |
193 | void 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 | bool prev_capture_no_interface_load;
201 | bool prev_capture_no_extcap;
202 |
203 | /* First check if profile exists */
204 | if (!profile_exists(env_prefix, profile_name, false)) {
205 | if (profile_exists(env_prefix, profile_name, true)) {
206 | char *pf_dir_path, *pf_dir_path2, *pf_filename;
207 | /* Copy from global profile */
208 | if (create_persconffile_profile(env_prefix, profile_name, &pf_dir_path) == -1) {
209 | simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
210 | "Can't create directory\n\"%s\":\n%s.",
211 | pf_dir_path, g_strerror(errno(*__errno_location ())));
212 |
213 | 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);
214 | }
215 |
216 | if (copy_persconffile_profile(env_prefix, profile_name, profile_name, true, &pf_filename,
217 | &pf_dir_path, &pf_dir_path2) == -1) {
218 | simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01,
219 | "Can't copy file \"%s\" in directory\n\"%s\" to\n\"%s\":\n%s.",
220 | pf_filename, pf_dir_path2, pf_dir_path, g_strerror(errno(*__errno_location ())));
221 |
222 | 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);
223 | 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);
224 | 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);
225 | }
226 | } else {
227 | /* No personal and no global profile exists */
228 | return;
229 | }
230 | }
231 |
232 | /* Then check if changing to another profile */
233 | if (profile_name && strcmp (profile_name, get_profile_name()) == 0) {
234 | return;
235 | }
236 |
237 | prev_capture_no_interface_load = prefs.capture_no_interface_load;
238 | prev_capture_no_extcap = prefs.capture_no_extcap;
239 |
240 | /* Get the current geometry, before writing it to disk */
241 | emit profileChanging();
242 |
243 | if (write_recent_file && profile_exists(env_prefix, get_profile_name(), false))
244 | {
245 | /* Write recent file for profile we are leaving, if it still exists */
246 | write_profile_recent();
247 | }
248 |
249 | // Freeze the packet list early to avoid updating column data before doing a
250 | // full redissection. The packet list will be thawed when redissection is done.
251 | emit freezePacketList(true);
252 |
253 | /* Set profile name and update the status bar */
254 | set_profile_name (profile_name);
255 | emit profileNameChanged(profile_name);
256 |
257 | /* Apply new preferences */
258 | readConfigurationFiles(true);
259 |
260 | /* Apply command-line preferences */
261 | commandline_options_reapply();
262 | extcap_register_preferences(NULL__null, NULL__null);
263 |
264 | /* Switching profile requires reloading the macro list. */
265 | reloadDisplayFilterMacros();
266 |
267 | if (!recent_read_profile_static(&rf_path, &rf_open_errno)) {
268 | simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK0x01,
269 | "Could not open common recent file\n\"%s\": %s.",
270 | rf_path, g_strerror(rf_open_errno));
271 | 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);
272 | }
273 | if (recent.gui_fileopen_remembered_dir &&
274 | test_for_directory(recent.gui_fileopen_remembered_dir) == EISDIR21) {
275 | set_last_open_dir(recent.gui_fileopen_remembered_dir);
276 | }
277 | timestamp_set_type(recent.gui_time_format);
278 | timestamp_set_precision(recent.gui_time_precision);
279 | timestamp_set_seconds_type (recent.gui_seconds_format);
280 |
281 | prefs_to_capture_opts(&global_capture_opts);
282 | prefs_apply_all();
283 | #ifdef HAVE_LIBPCAP1
284 | update_local_interfaces(&global_capture_opts);
285 | #endif
286 |
287 | emit columnsChanged();
288 | emit preferencesChanged();
289 | emit recentPreferencesRead();
290 | emit filterExpressionsChanged();
291 | emit checkDisplayFilter();
292 | emit captureFilterListChanged();
293 | emit displayFilterListChanged();
294 |
295 | /* Reload color filters */
296 | if (!color_filters_reload(&err_msg, color_filter_add_cb, application_configuration_environment_prefix())) {
297 | simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01, "%s", err_msg);
298 | 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);
299 | }
300 |
301 | /* Load interfaces if settings have changed */
302 | if (!prefs.capture_no_interface_load &&
303 | ((prefs.capture_no_interface_load != prev_capture_no_interface_load) ||
304 | (prefs.capture_no_extcap != prev_capture_no_extcap))) {
305 | refreshLocalInterfaces();
306 | }
307 |
308 | emit localInterfaceListChanged();
309 | emit packetDissectionChanged();
310 |
311 | /* Write recent_common file to ensure last used profile setting is stored. */
312 | write_recent();
313 | }
314 |
315 | void MainApplication::reloadLuaPluginsDelayed()
316 | {
317 | QTimer::singleShot(0, this, [this]() {
318 | /* Clear the reloading flag so the re-triggered reload
319 | * is not blocked by the isReloadingLua() guard. */
320 | setReloadingLua(false);
321 | emit reloadLuaPlugins();
322 | });
323 | }
324 |
325 | const QIcon &MainApplication::normalIcon()
326 | {
327 | if (normal_icon_.isNull()) {
328 | initializeIcons();
329 | }
330 | return normal_icon_;
331 | }
332 |
333 | const QIcon &MainApplication::captureIcon()
334 | {
335 | if (capture_icon_.isNull()) {
336 | initializeIcons();
337 | }
338 | return capture_icon_;
339 | }
340 |
341 | const QString MainApplication::windowTitleString(QStringList title_parts)
342 | {
343 | QMutableStringListIterator tii(title_parts);
344 | while (tii.hasNext()) {
345 | QString ti = tii.next();
346 | if (ti.isEmpty()) tii.remove();
347 | }
348 | title_parts.prepend(applicationName());
349 | return title_parts.join(window_title_separator_);
350 | }
351 |
352 | void MainApplication::applyCustomColorsFromRecent()
353 | {
354 | int i = 0;
355 | bool ok;
356 | for (GList *custom_color = recent.custom_colors; custom_color; custom_color = custom_color->next) {
357 | QRgb rgb = QString((const char *)custom_color->data).toUInt(&ok, 16);
358 | if (ok) {
359 | QColorDialog::setCustomColor(i++, QColor(rgb));
360 | }
361 | }
362 | }
363 |
364 | // Return the first top-level MainWindow.
365 | MainWindow *MainApplication::mainWindow()
366 | {
367 | foreach (QWidget *tlw, topLevelWidgets())for (auto _container_367 = QtPrivate::qMakeForeachContainer(topLevelWidgets ()); _container_367.i != _container_367.e; ++_container_367.i ) if (QWidget *tlw = *_container_367.i; false) {} else {
368 | MainWindow *tlmw = qobject_cast<MainWindow *>(tlw);
369 | if (tlmw && tlmw->isVisible()) {
370 | return tlmw;
371 | }
372 | }
373 | return nullptr;
374 | }
375 |
376 | void MainApplication::storeCustomColorsInRecent()
377 | {
378 | if (QColorDialog::customCount()) {
379 | prefs_clear_string_list(recent.custom_colors);
380 | recent.custom_colors = NULL__null;
381 | for (int i = 0; i < QColorDialog::customCount(); i++) {
382 | QRgb rgb = QColorDialog::customColor(i).rgb();
383 | recent.custom_colors = g_list_append(recent.custom_colors, ws_strdup_printf("%08x", rgb)wmem_strdup_printf(__null, "%08x", rgb));
384 | }
385 | }
386 | }
387 |
388 | bool MainApplication::event(QEvent *event)
389 | {
390 | QString display_filter = NULL__null;
391 | if (event->type() == QEvent::FileOpen) {
392 | QFileOpenEvent *foe = static_cast<QFileOpenEvent *>(event);
393 | if (foe && foe->file().length() > 0) {
394 | QString cf_path(foe->file());
395 | if (initialized_) {
396 | emit openCaptureFile(cf_path, display_filter, WTAP_TYPE_AUTO0);
397 | } else {
398 | pending_open_files_.append(cf_path);
399 | }
400 | }
401 | return true;
402 | }
403 | return QApplication::event(event);
404 | }
405 |
406 | void MainApplication::cleanup()
407 | {
408 | SoftwareUpdate::instance()->cleanup();
409 | storeCustomColorsInRecent();
410 | // Write the user's recent file(s) to disk.
411 | write_profile_recent();
412 | write_recent();
413 |
414 | // We might end up here via exit_application.
415 | QThreadPool::globalInstance()->waitForDone();
416 | }
417 |
418 | MainApplication::MainApplication(int &argc, char **argv) :
419 | QApplication(argc, argv),
420 | initialized_(false),
421 | is_reloading_lua_(false),
422 | if_notifier_(NULL__null),
423 | active_captures_(0),
424 | refresh_interfaces_pending_(false)
425 | #if defined(Q_OS_MAC) || defined(Q_OS_WIN)
426 | , normal_icon_(windowIcon())
427 | #endif
428 | #ifdef HAVE_LIBPCAP1
429 | , cached_if_list_(NULL__null)
430 | #endif
431 | {
432 | mainApp = this;
433 |
434 | MimeDatabaseInitThread *mime_db_init_thread = new(MimeDatabaseInitThread);
435 | QThreadPool::globalInstance()->start(mime_db_init_thread);
436 |
437 | Q_INIT_RESOURCE(about)do { extern int qInitResources_about (); qInitResources_about (); } while (false);
1 | Loop condition is false. Exiting loop | →
438 | Q_INIT_RESOURCE(i18n)do { extern int qInitResources_i18n (); qInitResources_i18n ( ); } while (false);
2 | ← | Loop condition is false. Exiting loop | →
439 | Q_INIT_RESOURCE(layout)do { extern int qInitResources_layout (); qInitResources_layout (); } while (false);
3 | ← | Loop condition is false. Exiting loop | →
440 | Q_INIT_RESOURCE(stock_icons)do { extern int qInitResources_stock_icons (); qInitResources_stock_icons (); } while (false);
4 | ← | Loop condition is false. Exiting loop | →
441 | Q_INIT_RESOURCE(languages)do { extern int qInitResources_languages (); qInitResources_languages (); } while (false);
5 | ← | Loop condition is false. Exiting loop | →
442 |
443 | // Initialize the ThemeManager as early as possible so that any
444 | // widget constructed afterwards can resolve themed stylesheets and
445 | // color tokens. This must run after QApplication's base ctor (so
446 | // that the palette is queryable for light/dark detection) but
447 | // before any UI is built. recent_common has already been read in
448 | // main()/stratoshark_main() prior to constructing this application
449 | // object, so we can read any configured themes as well.
450 | // Theme selection is persisted in recent_common (recent.gui_theme_name),
451 | // not in the preferences file — so it survives profile switches and
452 | // stays global to the install. Empty / missing value, or the legacy
453 | // "default" sentinel, get resolved by ThemeManager itself to the
454 | // current flavor's preferred default (wireshark / stratoshark).
455 | ThemeManager::init(ThemeManager::resolveThemeName(
456 | QString::fromUtf8(recent.gui_theme_name)));
457 |
458 | #ifdef Q_OS_WIN
459 | /* RichEd20.DLL is needed for native file dialog filter entries. */
460 | ws_load_library("riched20.dll");
461 | #endif // Q_OS_WIN
462 |
463 | // We use a lot of style sheets that base their colors on the main
464 | // application palette, so this works better.
465 | setAttribute(Qt::AA_UseStyleSheetPropagationInWidgetStyles, true);
466 |
467 | // Throw various settings at the wall with the hope that one of them will
468 | // enable context menu shortcuts QTBUG-69452, QTBUG-109590
469 | setAttribute(Qt::AA_DontShowShortcutsInContextMenus, false);
470 | styleHints()->setShowShortcutsInContextMenus(true);
471 |
472 | packet_data_timer_.setParent(this);
473 | connect(&packet_data_timer_, &QTimer::timeout, this, &MainApplication::refreshPacketData);
474 | packet_data_timer_.start(1000);
475 |
476 | tap_update_timer_.setParent(this);
477 | // tap_update_timer interval is set when preferences are set before init
478 | connect(this, &MainApplication::appInitialized, &tap_update_timer_, [&]() { tap_update_timer_.start(); });
479 | connect(&tap_update_timer_, &QTimer::timeout, this, &MainApplication::updateTaps);
480 |
481 | setStyle(new ThemeStyler);
6 | ← | Memory is allocated | →
482 |
483 | connect(qApp(static_cast<QApplication *>(QCoreApplication::instance ())), &QApplication::aboutToQuit, this, &MainApplication::cleanup);
7 | ← | Potential memory leak
484 | }
485 |
486 | MainApplication::~MainApplication()
487 | {
488 | mainApp = NULL__null;
489 | #ifdef HAVE_LIBPCAP1
490 | free_interface_list(cached_if_list_);
491 | #endif
492 | clearDynamicMenuGroupItems();
493 | }
494 |
495 | void MainApplication::emitAppSignal(AppSignal signal)
496 | {
497 | switch (signal) {
498 | case ColumnsChanged:
499 | emit columnsChanged();
500 | break;
501 | case CaptureFilterListChanged:
502 | emit captureFilterListChanged();
503 | break;
504 | case DisplayFilterListChanged:
505 | emit displayFilterListChanged();
506 | break;
507 | case FilterExpressionsChanged:
508 | emit filterExpressionsChanged();
509 | break;
510 | case LocalInterfacesChanged:
511 | emit localInterfaceListChanged();
512 | break;
513 | case NameResolutionChanged:
514 | emit addressResolutionChanged();
515 | break;
516 | case PreferencesChanged:
517 | tap_update_timer_.setInterval(prefs.tap_update_interval);
518 | emit preferencesChanged();
519 | break;
520 | case PacketDissectionChanged:
521 | emit packetDissectionChanged();
522 | break;
523 | case RecentPreferencesRead:
524 | emit recentPreferencesRead();
525 | break;
526 | case FieldsChanged:
527 | emit fieldsChanged();
528 | break;
529 | case FreezePacketList:
530 | emit freezePacketList(false);
531 | break;
532 | case AggregationChanged:
533 | emit aggregationChanged();
534 | break;
535 | default:
536 | break;
537 | }
538 | }
539 |
540 | // Flush any collected app signals.
541 | //
542 | // On macOS emitting PacketDissectionChanged from a dialog can
543 | // render the application unusable:
544 | // https://gitlab.com/wireshark/wireshark/-/issues/11361
545 | // https://gitlab.com/wireshark/wireshark/-/issues/11448
546 | // Work around the problem by queueing up app signals and emitting them
547 | // after the dialog is closed.
548 | //
549 | // The following bugs might be related although they don't describe the
550 | // exact behavior we're working around here:
551 | // https://bugreports.qt.io/browse/QTBUG-38512
552 | // https://bugreports.qt.io/browse/QTBUG-38600
553 | void MainApplication::flushAppSignals()
554 | {
555 | while (!app_signals_.isEmpty()) {
556 | mainApp->emitAppSignal(app_signals_.takeFirst());
557 | }
558 | }
559 |
560 | void MainApplication::emitStatCommandSignal(const QString &menu_path, const char *arg, void *userdata)
561 | {
562 | emit openStatCommandDialog(menu_path, arg, userdata);
563 | }
564 |
565 | void MainApplication::emitTapParameterSignal(const QString cfg_abbr, const QString arg, void *userdata)
566 | {
567 | emit openTapParameterDialog(cfg_abbr, arg, userdata);
568 | }
569 |
570 | // XXX Combine statistics and funnel routines into addGroupItem + groupItems?
571 | void MainApplication::addDynamicMenuGroupItem(int group, QAction *sg_action)
572 | {
573 | if (!dynamic_menu_groups_.contains(group)) {
574 | dynamic_menu_groups_[group] = QList<QAction *>();
575 | }
576 | dynamic_menu_groups_[group] << sg_action;
577 | }
578 |
579 | void MainApplication::appendDynamicMenuGroupItem(int group, QAction *sg_action)
580 | {
581 | if (!added_menu_groups_.contains(group)) {
582 | added_menu_groups_[group] = QList<QAction *>();
583 | }
584 | added_menu_groups_[group] << sg_action;
585 | addDynamicMenuGroupItem(group, sg_action);
586 | }
587 |
588 | void MainApplication::removeDynamicMenuGroupItem(int group, QAction *sg_action)
589 | {
590 | if (!removed_menu_groups_.contains(group)) {
591 | removed_menu_groups_[group] = QList<QAction *>();
592 | }
593 | removed_menu_groups_[group] << sg_action;
594 | dynamic_menu_groups_[group].removeAll(sg_action);
595 | }
596 |
597 | void MainApplication::clearDynamicMenuGroupItems()
598 | {
599 | foreach (int group, dynamic_menu_groups_.keys())for (auto _container_599 = QtPrivate::qMakeForeachContainer(dynamic_menu_groups_ .keys()); _container_599.i != _container_599.e; ++_container_599 .i) if (int group = *_container_599.i; false) {} else {
600 | dynamic_menu_groups_[group].clear();
601 | }
602 | }
603 |
604 | QList<QAction *> MainApplication::dynamicMenuGroupItems(int group)
605 | {
606 | if (!dynamic_menu_groups_.contains(group)) {
607 | return QList<QAction *>();
608 | }
609 |
610 | QList<QAction *> sgi_list = dynamic_menu_groups_[group];
611 | std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
612 | return sgi_list;
613 | }
614 |
615 | QList<QAction *> MainApplication::addedMenuGroupItems(int group)
616 | {
617 | if (!added_menu_groups_.contains(group)) {
618 | return QList<QAction *>();
619 | }
620 |
621 | QList<QAction *> sgi_list = added_menu_groups_[group];
622 | std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
623 | return sgi_list;
624 | }
625 |
626 | QList<QAction *> MainApplication::removedMenuGroupItems(int group)
627 | {
628 | if (!removed_menu_groups_.contains(group)) {
629 | return QList<QAction *>();
630 | }
631 |
632 | QList<QAction *> sgi_list = removed_menu_groups_[group];
633 | std::sort(sgi_list.begin(), sgi_list.end(), qActionLessThan);
634 | return sgi_list;
635 | }
636 |
637 | void MainApplication::clearAddedMenuGroupItems()
638 | {
639 | foreach (int group, added_menu_groups_.keys())for (auto _container_639 = QtPrivate::qMakeForeachContainer(added_menu_groups_ .keys()); _container_639.i != _container_639.e; ++_container_639 .i) if (int group = *_container_639.i; false) {} else {
640 | added_menu_groups_[group].clear();
641 | }
642 | }
643 |
644 | void MainApplication::clearRemovedMenuGroupItems()
645 | {
646 | foreach (int group, removed_menu_groups_.keys())for (auto _container_646 = QtPrivate::qMakeForeachContainer(removed_menu_groups_ .keys()); _container_646.i != _container_646.e; ++_container_646 .i) if (int group = *_container_646.i; false) {} else {
647 | foreach (QAction *action, removed_menu_groups_[group])for (auto _container_647 = QtPrivate::qMakeForeachContainer(removed_menu_groups_ [group]); _container_647.i != _container_647.e; ++_container_647 .i) if (QAction *action = *_container_647.i; false) {} else {
648 | delete action;
649 | }
650 | removed_menu_groups_[group].clear();
651 | }
652 | }
653 |
654 | #ifdef HAVE_LIBPCAP1
655 |
656 | static void
657 | iface_mon_event_cb(const char *iface, int added, int up)
658 | {
659 | int present = 0;
660 | unsigned ifs, j;
661 | interface_t *device;
662 | interface_options *interface_opts;
663 |
664 | for (ifs = 0; ifs < global_capture_opts.all_ifaces->len; ifs++) {
665 | device = &g_array_index(global_capture_opts.all_ifaces, interface_t, ifs)(((interface_t*) (void *) (global_capture_opts.all_ifaces)-> data) [(ifs)]);
666 | if (strcmp(device->name, iface) == 0) {
667 | present = 1;
668 | if (!up) {
669 | /*
670 | * Interface went down or disappeared; remove all instances
671 | * of it from the current list of interfaces selected
672 | * for capturing.
673 | */
674 | for (j = 0; j < global_capture_opts.ifaces->len; j++) {
675 | interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, j)(((interface_options*) (void *) (global_capture_opts.ifaces)-> data) [(j)]);
676 | if (strcmp(interface_opts->name, device->name) == 0) {
677 | capture_opts_del_iface(&global_capture_opts, j);
678 | }
679 | }
680 | }
681 | }
682 | }
683 |
684 | mainApp->emitLocalInterfaceEvent(iface, added, up);
685 | if (present != up) {
686 | /*
687 | * We've been told that there's a new interface or that an old
688 | * interface is gone; reload the local interface list.
689 | *
690 | * XXX: We also want to reload the local interface list if [what
691 | * we can retrieve about] the capabilities of the device have changed.
692 | * Ideally we'd update the capabilities of just the one device in
693 | * the cache and signal that the list has been updated, instead of
694 | * freeing the entire cache and scanning again - but some extcaps
695 | * depend on other interfaces being up; e.g. by default androiddump
696 | * tries to connect to the loopback interface to look for adb running,
697 | * so if the loopback interface changes so does the status of
698 | * androiddump.
699 | *
700 | * On Linux, at least, you can't get the capabilities from a down
701 | * interface, but it's still present in all_ifaces - dumpcap returns
702 | * it in the list, and we show it so the user can get a status / error
703 | * message when trying to capture on it instead of it vanishing.
704 | * So if both present and up are true, then we still want to refresh
705 | * to update the capabilities and restart the stats.
706 | *
707 | * We also store the address in all_ifaces and show them to the user,
708 | * so we probably should monitor those events as well and update
709 | * the interface list appropriately when those change.
710 | */
711 | mainApp->refreshLocalInterfaces();
712 | }
713 | }
714 |
715 | #endif
716 |
717 | void MainApplication::ifChangeEventsAvailable()
718 | {
719 | #ifdef HAVE_LIBPCAP1
720 | /*
721 | * Something's readable from the descriptor for interface
722 | * monitoring.
723 | *
724 | * Have the interface-monitoring code Read whatever interface-change
725 | * events are available, and call the callback for them.
726 | */
727 | iface_mon_event();
728 | #endif
729 | }
730 |
731 | void MainApplication::emitLocalInterfaceEvent(const char *ifname, int added, int up)
732 | {
733 | emit localInterfaceEvent(ifname, added, up);
734 | }
735 |
736 | void MainApplication::refreshLocalInterfaces()
737 | {
738 | if (active_captures_ > 0) {
739 | refresh_interfaces_pending_ = true;
740 | return;
741 | }
742 |
743 | refresh_interfaces_pending_ = false;
744 | extcap_clear_interfaces();
745 |
746 | #ifdef HAVE_LIBPCAP1
747 | emit scanLocalInterfaces(nullptr);
748 | #endif
749 | }
750 |
751 | #ifdef HAVE_LIBPCAP1
752 | GList* MainApplication::getInterfaceList() const
753 | {
754 | return interface_list_copy(cached_if_list_);
755 | }
756 |
757 | void MainApplication::setInterfaceList(GList *if_list)
758 | {
759 | free_interface_list(cached_if_list_);
760 | cached_if_list_ = interface_list_copy(if_list);
761 | }
762 | #endif
763 |
764 | void MainApplication::allSystemsGo()
765 | {
766 | QString display_filter = NULL__null;
767 | initialized_ = true;
768 | emit appInitialized();
769 | while (pending_open_files_.length() > 0) {
770 | emit openCaptureFile(pending_open_files_.front(), display_filter, WTAP_TYPE_AUTO0);
771 | pending_open_files_.pop_front();
772 | }
773 |
774 | bool sideBarVisible = recent.gui_welcome_page_sidebar_tips_visible ||
775 | recent.gui_welcome_page_sidebar_learn_visible;
776 | SoftwareUpdate::instance()->init(!sideBarVisible);
777 |
778 | #ifdef HAVE_LIBPCAP1
779 | int err;
780 | err = iface_mon_start(&iface_mon_event_cb);
781 | if (err == 0) {
782 | if_notifier_ = new QSocketNotifier(iface_mon_get_sock(),
783 | QSocketNotifier::Read, this);
784 | connect(if_notifier_, &QSocketNotifier::activated, this, &MainApplication::ifChangeEventsAvailable);
785 | }
786 | #endif
787 | }
788 |
789 | _e_prefs *MainApplication::readConfigurationFiles(bool reset)
790 | {
791 | e_prefs *prefs_p;
792 |
793 | if (reset) {
794 | //
795 | // Reset current preferences and enabled/disabled protocols and
796 | // heuristic dissectors before reading.
797 | // (Needed except when this is called at startup.)
798 | //
799 | prefs_reset(application_configuration_environment_prefix(), application_columns(), application_num_columns());
800 | proto_reenable_all();
801 | }
802 |
803 | /* Load libwireshark settings from the current profile. */
804 | prefs_p = epan_load_settings();
805 |
806 | return prefs_p;
807 | }
808 |
809 | static void switchTranslator(QTranslator& myTranslator, const QString& filename,
810 | const QString& searchPath)
811 | {
812 | mainApp->removeTranslator(&myTranslator);
813 |
814 | if (myTranslator.load(filename, searchPath))
815 | mainApp->installTranslator(&myTranslator);
816 | }
817 |
818 | void MainApplication::loadLanguage(const QString newLanguage)
819 | {
820 | QLocale locale;
821 | QString localeLanguage;
822 | const char* env_prefix = application_configuration_environment_prefix();
823 |
824 | if (newLanguage.isEmpty() || newLanguage == USE_SYSTEM_LANGUAGE"system") {
825 | locale = QLocale::system();
826 | localeLanguage = locale.name();
827 | } else {
828 | localeLanguage = newLanguage;
829 | locale = QLocale(localeLanguage);
830 | }
831 |
832 | QLocale::setDefault(locale);
833 | switchTranslator(mainApp->translator,
834 | QStringLiteral("wireshark_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "wireshark_%1.qm") )).arg(localeLanguage), QStringLiteral(":/i18n/")(QString(QtPrivate::qMakeStringPrivate(u"" ":/i18n/"))));
835 | if (QFile::exists(QStringLiteral("%1/%2/wireshark_%3.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/%2/wireshark_%3.qm" )))
836 | .arg(get_datafile_dir(env_prefix)).arg("languages").arg(localeLanguage)))
837 | switchTranslator(mainApp->translator,
838 | QStringLiteral("wireshark_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "wireshark_%1.qm") )).arg(localeLanguage), QStringLiteral("%1/languages")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/languages"))).arg(get_datafile_dir(env_prefix)));
839 | if (QFile::exists(QStringLiteral("%1/wireshark_%3.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/wireshark_%3.qm" )))
840 | .arg(gchar_free_to_qstring(get_persconffile_path("languages", false, env_prefix))).arg(localeLanguage)))
841 | switchTranslator(mainApp->translator,
842 | QStringLiteral("wireshark_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "wireshark_%1.qm") )).arg(localeLanguage), gchar_free_to_qstring(get_persconffile_path("languages", false, env_prefix)));
843 | if (QFile::exists(QStringLiteral("%1/qt_%2.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/qt_%2.qm")))
844 | .arg(get_datafile_dir(env_prefix)).arg(localeLanguage))) {
845 | switchTranslator(mainApp->translatorQt,
846 | QStringLiteral("qt_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "qt_%1.qm"))).arg(localeLanguage), QString(get_datafile_dir(env_prefix)));
847 | } else if (QFile::exists(QStringLiteral("%1/qt_%2.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "%1/qt_%2.qm")))
848 | .arg(get_datafile_dir(env_prefix)).arg(localeLanguage.left(localeLanguage.lastIndexOf('_'))))) {
849 | switchTranslator(mainApp->translatorQt,
850 | QStringLiteral("qt_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "qt_%1.qm"))).arg(localeLanguage.left(localeLanguage.lastIndexOf('_'))), QString(get_datafile_dir(env_prefix)));
851 | } else {
852 | QString translationPath = QLibraryInfo::path(QLibraryInfo::TranslationsPath);
853 | switchTranslator(mainApp->translatorQt, QStringLiteral("qt_%1.qm")(QString(QtPrivate::qMakeStringPrivate(u"" "qt_%1.qm"))).arg(localeLanguage), translationPath);
854 | }
855 | }
856 |
857 | void MainApplication::doTriggerMenuItem(MainMenuItem menuItem)
858 | {
859 | switch (menuItem)
860 | {
861 | case FileOpenDialog:
862 | emit openCaptureFile(QString(), QString(), WTAP_TYPE_AUTO0);
863 | break;
864 | case CaptureOptionsDialog:
865 | emit openCaptureOptions();
866 | break;
867 | }
868 | }
869 |
870 | void MainApplication::captureEventHandler(CaptureEvent ev)
871 | {
872 | switch(ev.captureContext())
873 | {
874 | #ifdef HAVE_LIBPCAP1
875 | case CaptureEvent::Update:
876 | case CaptureEvent::Fixed:
877 | switch (ev.eventType())
878 | {
879 | case CaptureEvent::Prepared:
880 | iface_mon_enable(true);
881 | break;
882 | case CaptureEvent::Started:
883 | active_captures_++;
884 | emit captureActive(active_captures_);
885 | break;
886 | case CaptureEvent::Finished:
887 | active_captures_--;
888 | emit captureActive(active_captures_);
889 | if (refresh_interfaces_pending_ && !global_capture_opts.restart) {
890 | refreshLocalInterfaces();
891 | }
892 | break;
893 | default:
894 | break;
895 | }
896 | break;
897 | #endif
898 | case CaptureEvent::File:
899 | case CaptureEvent::Reload:
900 | case CaptureEvent::Rescan:
901 | switch (ev.eventType())
902 | {
903 | case CaptureEvent::Started:
904 | QTimer::singleShot(TAP_UPDATE_DEFAULT_INTERVAL3000 / 5, this, SLOT(updateTaps())qFlagLocation("1" "updateTaps()" "\0" "ui/qt/main_application.cpp" ":" "904"));
905 | QTimer::singleShot(TAP_UPDATE_DEFAULT_INTERVAL3000 / 2, this, SLOT(updateTaps())qFlagLocation("1" "updateTaps()" "\0" "ui/qt/main_application.cpp" ":" "905"));
906 | break;
907 | case CaptureEvent::Finished:
908 | updateTaps();
909 | break;
910 | default:
911 | break;
912 | }
913 | break;
914 | default:
915 | break;
916 | }
917 | }
918 |
919 | void MainApplication::pushStatus(StatusInfo status, const QString &message, const QString &messagetip)
920 | {
921 | MainWindow * mw = mainWindow();
922 | if (! mw) {
923 | return;
924 | }
925 |
926 | MainStatusBar * bar = mw->statusBar();
927 | if (! bar) {
928 | return;
929 | }
930 |
931 | switch(status)
932 | {
933 | case FilterSyntax:
934 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FILTER, message);
935 | break;
936 | case FieldStatus:
937 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FIELD, message);
938 | break;
939 | case FileStatus:
940 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_FILE, message, messagetip);
941 | break;
942 | case ByteStatus:
943 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_BYTE, message);
944 | break;
945 | case BusyStatus:
946 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_PROGRESS, message, messagetip);
947 | break;
948 | case TemporaryStatus:
949 | bar->pushGenericStatus(MainStatusBar::STATUS_CTX_TEMPORARY, message);
950 | break;
951 | }
952 | }
953 |
954 | void MainApplication::popStatus(StatusInfo status)
955 | {
956 | MainWindow * mw = mainWindow();
957 | if (! mw) {
958 | return;
959 | }
960 |
961 | MainStatusBar * bar = mw->statusBar();
962 | if (! bar) {
963 | return;
964 | }
965 |
966 | switch(status)
967 | {
968 | case FilterSyntax:
969 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_FILTER);
970 | break;
971 | case FieldStatus:
972 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_FIELD);
973 | break;
974 | case FileStatus:
975 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_FILE);
976 | break;
977 | case ByteStatus:
978 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_BYTE);
979 | break;
980 | case BusyStatus:
981 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_PROGRESS);
982 | break;
983 | case TemporaryStatus:
984 | bar->popGenericStatus(MainStatusBar::STATUS_CTX_TEMPORARY);
985 | break;
986 | }
987 | }
988 |
989 | void MainApplication::gotoFrame(int frame)
990 | {
991 | MainWindow * mw = mainWindow();
992 | if (! mw) {
993 | return;
994 | }
995 |
996 | mw->gotoFrame(frame);
997 | }
998 |
999 | void MainApplication::reloadDisplayFilterMacros()
1000 | {
1001 | dfilter_macro_reload(application_configuration_environment_prefix());
1002 | // The signal is needed when the display filter grammar changes for
1003 | // any reason (not just "fields".)
1004 | mainApp->emitAppSignal(MainApplication::FieldsChanged);
1005 | }