diff options
Diffstat (limited to 'ui/qt/capture_file.cpp')
-rw-r--r-- | ui/qt/capture_file.cpp | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/ui/qt/capture_file.cpp b/ui/qt/capture_file.cpp new file mode 100644 index 0000000..0fd088b --- /dev/null +++ b/ui/qt/capture_file.cpp @@ -0,0 +1,386 @@ +/* capture_file.cpp + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "capture_file.h" + +/* + * @file Capture file class + * + * Wraps the capture_file struct, cfile global, and callbacks. + */ + +#include "globals.h" +capture_file cfile; + +#include "file.h" + +#include "epan/epan_dissect.h" + +#include "ui/capture.h" + +#include <QFileInfo> +#include <QTimer> +#include <QDebug> + +CaptureEvent::CaptureEvent(Context ctx, EventType evt) : + _ctx(ctx), + _evt(evt), + _session(Q_NULLPTR) +{ +} + +CaptureEvent::CaptureEvent(Context ctx, EventType evt, QString file) : + _ctx(ctx), + _evt(evt), + _filePath(file), + _session(Q_NULLPTR) +{ +} + +CaptureEvent::CaptureEvent(Context ctx, EventType evt, capture_session * session) : + _ctx(ctx), + _evt(evt), + _session(session) +{ +} + +CaptureEvent::CaptureEvent(const CaptureEvent &ce) : + _ctx(ce._ctx), + _evt(ce._evt), + _filePath(ce._filePath), + _session(ce._session) +{ +} + +CaptureEvent::Context CaptureEvent::captureContext() const +{ return _ctx; } + +CaptureEvent::EventType CaptureEvent::eventType() const +{ return _evt; } + +QString CaptureEvent::filePath() const +{ return _filePath; } + +capture_session * CaptureEvent::capSession() const +{ return _session; } + +// To do: +// - Add getters and (if needed) setters: +// - Full filename +// - Capture state (stopped, prepared, running). +// - Call common_create_progress_dlg. This would let us manage the stop +// flag here as well as emit progress signals. + +QString CaptureFile::no_capture_file_ = QObject::tr("[no capture file]"); + +CaptureFile::CaptureFile(QObject *parent, capture_file *cap_file) : + QObject(parent), + cap_file_(cap_file), + file_state_(QString()) +{ +#ifdef HAVE_LIBPCAP + capture_callback_add(captureCallback, (gpointer) this); +#endif + cf_callback_add(captureFileCallback, (gpointer) this); +} + +CaptureFile::~CaptureFile() +{ + cf_callback_remove(captureFileCallback, this); +} + +bool CaptureFile::isValid() const +{ + if (cap_file_ && cap_file_->state != FILE_CLOSED && cap_file_->state != FILE_READ_PENDING) { // XXX FILE_READ_IN_PROGRESS as well? + return true; + } + return false; +} + +const QString CaptureFile::filePath() +{ + QString path; + + if (isValid()) { + // + // Sadly, some UN*Xes don't necessarily use UTF-8 + // for their file names, so we have to map the + // file path to UTF-8. If that fails, we're somewhat + // stuck. + // + char *utf8_filename = g_filename_to_utf8(cap_file_->filename, + -1, + NULL, + NULL, + NULL); + if (utf8_filename) { + path = QString::fromUtf8(utf8_filename); + g_free(utf8_filename); + } else { + // So what the heck else can we do here? + path = QString(); + } + } else { + path = QString(); + } + return path; +} + +const QString CaptureFile::fileName() +{ + QString path, name; + + path = filePath(); + if (!path.isEmpty()) { + QFileInfo cfi(path); + name = cfi.fileName(); + } else { + name = QString(); + } + + return name; +} + +const QString CaptureFile::fileBaseName() +{ + QString baseName; + + if (isValid()) { + char *basename = cf_get_basename(cap_file_); + baseName = basename; + g_free(basename); + } else { + baseName = QString(); + } + return baseName; +} + +const QString CaptureFile::fileDisplayName() +{ + QString displayName; + + if (isValid()) { + char *display_name = cf_get_display_name(cap_file_); + displayName = display_name; + g_free(display_name); + } else { + displayName = QString(); + } + return displayName; +} + +const QString CaptureFile::fileTitle() +{ + QString title; + + if (isValid()) { + title = fileDisplayName() + file_state_; + } else { + title = no_capture_file_; + } + return title; +} + +struct _packet_info *CaptureFile::packetInfo() +{ + if (capFile() && capFile()->edt) { + return &(capFile()->edt->pi); + } + return NULL; +} + +int CaptureFile::timestampPrecision() +{ + if (capFile() && capFile()->provider.wth) { + return wtap_file_tsprec(capFile()->provider.wth); + } + return WTAP_TSPREC_UNKNOWN; +} + +void CaptureFile::retapPackets() +{ + if (cap_file_) { + cf_retap_packets(cap_file_); + } +} + +void CaptureFile::delayedRetapPackets() +{ + QTimer::singleShot(0, this, SLOT(retapPackets())); +} + +void CaptureFile::reload() +{ + if (cap_file_ && cap_file_->state == FILE_READ_DONE) { + cf_reload(cap_file_); + } +} + +void CaptureFile::stopLoading() +{ + setCaptureStopFlag(true); +} + +QString CaptureFile::displayFilter() const +{ + if (isValid()) + return QString(cap_file_->dfilter); + return QString(); +} + +capture_file *CaptureFile::globalCapFile() +{ + return &cfile; +} + +gpointer CaptureFile::window() +{ + if (cap_file_) return cap_file_->window; + return NULL; +} + +void CaptureFile::setCaptureStopFlag(bool stop_flag) +{ + if (cap_file_) cap_file_->stop_flag = stop_flag; +} + +void CaptureFile::captureFileCallback(gint event, gpointer data, gpointer user_data) +{ + CaptureFile *capture_file = static_cast<CaptureFile *>(user_data); + if (!capture_file) return; + + capture_file->captureFileEvent(event, data); +} + +#ifdef HAVE_LIBPCAP +void CaptureFile::captureCallback(gint event, capture_session *cap_session, gpointer user_data) +{ + CaptureFile *capture_file = static_cast<CaptureFile *>(user_data); + if (!capture_file) return; + + capture_file->captureSessionEvent(event, cap_session); +} +#endif + +void CaptureFile::captureFileEvent(int event, gpointer data) +{ + switch(event) { + case(cf_cb_file_opened): + cap_file_ = (capture_file *) data; + emit captureEvent(CaptureEvent(CaptureEvent::File, CaptureEvent::Opened)); + break; + case(cf_cb_file_closing): + file_state_ = tr(" [closing]"); + emit captureEvent(CaptureEvent(CaptureEvent::File, CaptureEvent::Closing)); + break; + case(cf_cb_file_closed): + file_state_ = tr(" [closed]"); + emit captureEvent(CaptureEvent(CaptureEvent::File, CaptureEvent::Closed)); + cap_file_ = NULL; + file_state_ = QString(); + break; + case(cf_cb_file_read_started): + emit captureEvent(CaptureEvent(CaptureEvent::File, CaptureEvent::Started)); + break; + case(cf_cb_file_read_finished): + emit captureEvent(CaptureEvent(CaptureEvent::File, CaptureEvent::Finished)); + break; + case(cf_cb_file_reload_started): + emit captureEvent(CaptureEvent(CaptureEvent::Reload, CaptureEvent::Started)); + break; + case(cf_cb_file_reload_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Reload, CaptureEvent::Finished)); + break; + case(cf_cb_file_rescan_started): + emit captureEvent(CaptureEvent(CaptureEvent::Rescan, CaptureEvent::Started)); + break; + case(cf_cb_file_rescan_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Rescan, CaptureEvent::Finished)); + break; + case(cf_cb_file_retap_started): + emit captureEvent(CaptureEvent(CaptureEvent::Retap, CaptureEvent::Started)); + break; + case(cf_cb_file_retap_finished): + /* Flush any pending tapped packet before emitting captureFileRetapFinished() */ + emit captureEvent(CaptureEvent(CaptureEvent::Retap, CaptureEvent::Finished)); + emit captureEvent(CaptureEvent(CaptureEvent::Retap, CaptureEvent::Flushed)); + break; + case(cf_cb_file_merge_started): + emit captureEvent(CaptureEvent(CaptureEvent::Merge, CaptureEvent::Started)); + break; + case(cf_cb_file_merge_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Merge, CaptureEvent::Finished)); + break; + + case(cf_cb_file_fast_save_finished): + // gtk/main.c calls main_cf_cb_file_rescan_finished. Should we do + // the equivalent? + break; + + case(cf_cb_file_save_started): + { + emit captureEvent(CaptureEvent(CaptureEvent::Save, CaptureEvent::Started, QString((const char *)data))); + break; + } + case(cf_cb_file_save_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Save, CaptureEvent::Finished)); + break; + case(cf_cb_file_save_failed): + emit captureEvent(CaptureEvent(CaptureEvent::Save, CaptureEvent::Failed)); + break; + case(cf_cb_file_save_stopped): + emit captureEvent(CaptureEvent(CaptureEvent::Save, CaptureEvent::Stopped)); + break; + + default: + qWarning() << "CaptureFile::captureFileCallback: event " << event << " unknown"; + Q_ASSERT(false); + break; + } +} + +#ifdef HAVE_LIBPCAP +void CaptureFile::captureSessionEvent(int event, capture_session *cap_session) +{ + switch(event) { + case(capture_cb_capture_prepared): + emit captureEvent(CaptureEvent(CaptureEvent::Capture, CaptureEvent::Prepared, cap_session)); + cap_file_ = cap_session->cf; + break; + case(capture_cb_capture_update_started): + emit captureEvent(CaptureEvent(CaptureEvent::Update, CaptureEvent::Started, cap_session)); + break; + case(capture_cb_capture_update_continue): + emit captureEvent(CaptureEvent(CaptureEvent::Update, CaptureEvent::Continued, cap_session)); + break; + case(capture_cb_capture_update_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Update, CaptureEvent::Finished, cap_session)); + break; + case(capture_cb_capture_fixed_started): + emit captureEvent(CaptureEvent(CaptureEvent::Fixed, CaptureEvent::Started, cap_session)); + break; + case(capture_cb_capture_fixed_continue): + emit captureEvent(CaptureEvent(CaptureEvent::Fixed, CaptureEvent::Continued, cap_session)); + break; + case(capture_cb_capture_fixed_finished): + emit captureEvent(CaptureEvent(CaptureEvent::Fixed, CaptureEvent::Finished, cap_session)); + break; + case(capture_cb_capture_stopping): + /* Beware: this state won't be called, if the capture child + * closes the capturing on it's own! */ + emit captureEvent(CaptureEvent(CaptureEvent::Capture, CaptureEvent::Stopping, cap_session)); + break; + case(capture_cb_capture_failed): + emit captureEvent(CaptureEvent(CaptureEvent::Capture, CaptureEvent::Failed, cap_session)); + break; + default: + qWarning() << "main_capture_callback: event " << event << " unknown"; + } +} +#endif // HAVE_LIBPCAP |