forked from osmocom/wireshark
![Gerald Combs](/assets/img/avatar_default.png)
The official Npcap web site is now https://npcap.com/. Update our URLs to match. Fixes #17838.
508 lines
16 KiB
C++
508 lines
16 KiB
C++
/* interface_frame.cpp
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* Display of interfaces, including their respective data, and the
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* capability to filter interfaces by type
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <ui_interface_frame.h>
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#include "capture/capture_ifinfo.h"
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#ifdef Q_OS_WIN
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#include "capture/capture-wpcap.h"
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#endif
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#include "ui/qt/interface_frame.h"
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#include <ui/qt/simple_dialog.h>
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#include <ui/qt/wireshark_application.h>
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#include <ui/qt/models/interface_tree_model.h>
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#include <ui/qt/models/sparkline_delegate.h>
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#include <ui/qt/utils/color_utils.h>
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#include "extcap.h"
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#include <ui/recent.h>
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#include <wsutil/utf8_entities.h>
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#include <QDesktopServices>
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#include <QFrame>
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#include <QHBoxLayout>
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#include <QItemSelection>
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#include <QLabel>
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#include <QPushButton>
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#include <QUrl>
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#include <epan/prefs.h>
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#define BTN_IFTYPE_PROPERTY "ifType"
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#ifdef HAVE_LIBPCAP
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const int stat_update_interval_ = 1000; // ms
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#endif
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const char *no_capture_link = "#no_capture";
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InterfaceFrame::InterfaceFrame(QWidget * parent)
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: QFrame(parent),
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ui(new Ui::InterfaceFrame)
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, proxy_model_(Q_NULLPTR)
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, source_model_(Q_NULLPTR)
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, info_model_(this)
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#ifdef HAVE_LIBPCAP
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,stat_timer_(NULL)
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#endif // HAVE_LIBPCAP
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{
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ui->setupUi(this);
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setStyleSheet(QString(
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"QFrame {"
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" border: 0;"
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"}"
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"QTreeView {"
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" border: 0;"
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"}"
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));
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ui->warningLabel->hide();
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#ifdef Q_OS_MAC
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ui->interfaceTree->setAttribute(Qt::WA_MacShowFocusRect, false);
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#endif
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/* TODO: There must be a better way to do this */
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ifTypeDescription.insert(IF_WIRED, tr("Wired"));
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ifTypeDescription.insert(IF_AIRPCAP, tr("AirPCAP"));
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ifTypeDescription.insert(IF_PIPE, tr("Pipe"));
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ifTypeDescription.insert(IF_STDIN, tr("STDIN"));
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ifTypeDescription.insert(IF_BLUETOOTH, tr("Bluetooth"));
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ifTypeDescription.insert(IF_WIRELESS, tr("Wireless"));
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ifTypeDescription.insert(IF_DIALUP, tr("Dial-Up"));
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ifTypeDescription.insert(IF_USB, tr("USB"));
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ifTypeDescription.insert(IF_EXTCAP, tr("External Capture"));
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ifTypeDescription.insert(IF_VIRTUAL, tr ("Virtual"));
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QList<InterfaceTreeColumns> columns;
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columns.append(IFTREE_COL_EXTCAP);
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columns.append(IFTREE_COL_DISPLAY_NAME);
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columns.append(IFTREE_COL_STATS);
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proxy_model_.setColumns(columns);
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proxy_model_.setStoreOnChange(true);
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proxy_model_.setSourceModel(&source_model_);
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info_model_.setSourceModel(&proxy_model_);
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info_model_.setColumn(columns.indexOf(IFTREE_COL_STATS));
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ui->interfaceTree->setModel(&info_model_);
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ui->interfaceTree->setItemDelegateForColumn(proxy_model_.mapSourceToColumn(IFTREE_COL_STATS), new SparkLineDelegate(this));
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ui->interfaceTree->setContextMenuPolicy(Qt::CustomContextMenu);
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connect(ui->interfaceTree, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));
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connect(wsApp, SIGNAL(appInitialized()), this, SLOT(interfaceListChanged()));
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connect(wsApp, SIGNAL(localInterfaceListChanged()), this, SLOT(interfaceListChanged()));
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connect(ui->interfaceTree->selectionModel(), SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)),
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this, SLOT(interfaceTreeSelectionChanged(const QItemSelection &, const QItemSelection &)));
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}
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InterfaceFrame::~InterfaceFrame()
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{
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delete ui;
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}
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QMenu * InterfaceFrame::getSelectionMenu()
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{
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QMenu * contextMenu = new QMenu(this);
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QList<int> typesDisplayed = proxy_model_.typesDisplayed();
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QMap<int, QString>::const_iterator it = ifTypeDescription.constBegin();
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while (it != ifTypeDescription.constEnd())
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{
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int ifType = it.key();
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if (typesDisplayed.contains(ifType))
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{
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QAction *endp_action = new QAction(it.value(), this);
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endp_action->setData(QVariant::fromValue(ifType));
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endp_action->setCheckable(true);
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endp_action->setChecked(proxy_model_.isInterfaceTypeShown(ifType));
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connect(endp_action, SIGNAL(triggered()), this, SLOT(triggeredIfTypeButton()));
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contextMenu->addAction(endp_action);
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}
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++it;
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}
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#ifdef HAVE_PCAP_REMOTE
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if (proxy_model_.remoteInterfacesExist())
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{
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QAction * toggleRemoteAction = new QAction(tr("Remote interfaces"), this);
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toggleRemoteAction->setCheckable(true);
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toggleRemoteAction->setChecked(! proxy_model_.remoteDisplay());
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connect(toggleRemoteAction, SIGNAL(triggered()), this, SLOT(toggleRemoteInterfaces()));
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contextMenu->addAction(toggleRemoteAction);
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}
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#endif
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#if 0
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// Disabled until bug 13354 is fixed
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contextMenu->addSeparator();
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QAction * toggleHideAction = new QAction(tr("Show hidden interfaces"), this);
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toggleHideAction->setCheckable(true);
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toggleHideAction->setChecked(! proxy_model_->filterHidden());
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connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHiddenInterfaces()));
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contextMenu->addAction(toggleHideAction);
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#endif
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return contextMenu;
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}
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int InterfaceFrame::interfacesHidden()
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{
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return proxy_model_.interfacesHidden();
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}
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int InterfaceFrame::interfacesPresent()
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{
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return source_model_.rowCount() - proxy_model_.interfacesHidden();
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}
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void InterfaceFrame::ensureSelectedInterface()
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{
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#ifdef HAVE_LIBPCAP
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if (interfacesPresent() < 1) return;
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if (source_model_.selectedDevices().count() < 1) {
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QModelIndex first_idx = info_model_.mapFromSource(proxy_model_.index(0, 0));
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ui->interfaceTree->setCurrentIndex(first_idx);
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}
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ui->interfaceTree->setFocus();
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#endif
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}
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void InterfaceFrame::hideEvent(QHideEvent *) {
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#ifdef HAVE_LIBPCAP
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if (stat_timer_)
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stat_timer_->stop();
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source_model_.stopStatistic();
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#endif // HAVE_LIBPCAP
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}
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void InterfaceFrame::showEvent(QShowEvent *) {
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#ifdef HAVE_LIBPCAP
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if (stat_timer_)
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stat_timer_->start(stat_update_interval_);
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#endif // HAVE_LIBPCAP
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}
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void InterfaceFrame::actionButton_toggled(bool checked)
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{
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QVariant ifType = sender()->property(BTN_IFTYPE_PROPERTY);
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if (ifType.isValid())
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{
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proxy_model_.setInterfaceTypeVisible(ifType.toInt(), checked);
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}
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resetInterfaceTreeDisplay();
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}
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void InterfaceFrame::triggeredIfTypeButton()
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{
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QAction *sender = qobject_cast<QAction *>(QObject::sender());
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if (sender)
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{
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int ifType = sender->data().value<int>();
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proxy_model_.toggleTypeVisibility(ifType);
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resetInterfaceTreeDisplay();
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emit typeSelectionChanged();
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}
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}
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void InterfaceFrame::interfaceListChanged()
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{
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info_model_.clearInfos();
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if (prefs.capture_no_extcap)
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info_model_.appendInfo(tr("External capture interfaces disabled."));
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resetInterfaceTreeDisplay();
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// Ensure that device selection is consistent with the displayed selection.
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updateSelectedInterfaces();
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#ifdef HAVE_LIBPCAP
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if (!stat_timer_) {
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updateStatistics();
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stat_timer_ = new QTimer(this);
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connect(stat_timer_, SIGNAL(timeout()), this, SLOT(updateStatistics()));
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stat_timer_->start(stat_update_interval_);
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}
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#endif
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}
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void InterfaceFrame::toggleHiddenInterfaces()
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{
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proxy_model_.toggleFilterHidden();
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emit typeSelectionChanged();
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}
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#ifdef HAVE_PCAP_REMOTE
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void InterfaceFrame::toggleRemoteInterfaces()
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{
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proxy_model_.toggleRemoteDisplay();
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emit typeSelectionChanged();
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}
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#endif
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void InterfaceFrame::resetInterfaceTreeDisplay()
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{
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ui->warningLabel->hide();
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ui->warningLabel->clear();
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ui->warningLabel->setStyleSheet(QString(
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"QLabel {"
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" border-radius: 0.5em;"
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" padding: 0.33em;"
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" margin-bottom: 0.25em;"
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// We might want to transition this to normal colors this after a timeout.
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" background-color: %2;"
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"}"
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).arg(ColorUtils::warningBackground().name()));
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#ifdef HAVE_LIBPCAP
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#ifdef Q_OS_WIN
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if (!has_wpcap) {
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ui->warningLabel->setText(tr(
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"<p>"
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"Local interfaces are unavailable because no packet capture driver is installed."
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"</p><p>"
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"You can fix this by installing <a href=\"https://npcap.com/\">Npcap</a>."
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"</p>"));
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} else if (!npf_sys_is_running()) {
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ui->warningLabel->setText(tr(
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"<p>"
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"Local interfaces are unavailable because the packet capture driver isn't loaded."
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"</p><p>"
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"You can fix this by running <pre>net start npcap</pre> if you have Npcap installed"
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" or <pre>net start npf</pre> if you have WinPcap installed."
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" Both commands must be run as Administrator."
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"</p>"));
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}
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#endif
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if (!haveLocalCapturePermissions())
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{
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#ifdef Q_OS_MAC
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//
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// NOTE: if you change this text, you must also change the
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// definition of PLATFORM_PERMISSIONS_SUGGESTION that is
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// used if __APPLE__ is defined, so that it reflects the
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// new message text.
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//
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QString install_chmodbpf_path = wsApp->applicationDirPath() + "/../Resources/Extras/Install ChmodBPF.pkg";
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ui->warningLabel->setText(tr(
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"<p>"
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"You don't have permission to capture on local interfaces."
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"</p><p>"
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"You can fix this by <a href=\"file://%1\">installing ChmodBPF</a>."
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"</p>")
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.arg(install_chmodbpf_path));
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#else
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//
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// XXX - should this give similar platform-dependent recommendations,
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// just as dumpcap gives platform-dependent recommendations in its
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// PLATFORM_PERMISSIONS_SUGGESTION #define?
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//
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ui->warningLabel->setText(tr("You don't have permission to capture on local interfaces."));
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#endif
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}
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if (proxy_model_.rowCount() == 0)
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{
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ui->warningLabel->setText(tr("No interfaces found."));
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ui->warningLabel->setText(proxy_model_.interfaceError());
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if (prefs.capture_no_interface_load) {
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ui->warningLabel->setText(tr("Interfaces not loaded (due to preference). Go to Capture " UTF8_RIGHTWARDS_ARROW " Refresh Interfaces to load."));
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}
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}
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// XXX Should we have a separate recent pref for each message?
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if (!ui->warningLabel->text().isEmpty() && recent.sys_warn_if_no_capture)
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{
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QString warning_text = ui->warningLabel->text();
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warning_text.append(QString("<p><a href=\"%1\">%2</a></p>")
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.arg(no_capture_link)
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.arg(SimpleDialog::dontShowThisAgain()));
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ui->warningLabel->setText(warning_text);
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ui->warningLabel->show();
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}
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#endif // HAVE_LIBPCAP
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if (proxy_model_.rowCount() > 0)
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{
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ui->interfaceTree->show();
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ui->interfaceTree->resizeColumnToContents(proxy_model_.mapSourceToColumn(IFTREE_COL_EXTCAP));
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ui->interfaceTree->resizeColumnToContents(proxy_model_.mapSourceToColumn(IFTREE_COL_DISPLAY_NAME));
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ui->interfaceTree->resizeColumnToContents(proxy_model_.mapSourceToColumn(IFTREE_COL_STATS));
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}
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else
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{
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ui->interfaceTree->hide();
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}
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}
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// XXX Should this be in capture/capture-pcap-util.[ch]?
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bool InterfaceFrame::haveLocalCapturePermissions() const
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{
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#ifdef Q_OS_MAC
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QFileInfo bpf0_fi = QFileInfo("/dev/bpf0");
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return bpf0_fi.isReadable() && bpf0_fi.isWritable();
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#else
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// XXX Add checks for other platforms.
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return true;
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#endif
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}
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void InterfaceFrame::updateSelectedInterfaces()
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{
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if (source_model_.rowCount() == 0)
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return;
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#ifdef HAVE_LIBPCAP
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QItemSelection sourceSelection = source_model_.selectedDevices();
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QItemSelection mySelection = info_model_.mapSelectionFromSource(proxy_model_.mapSelectionFromSource(sourceSelection));
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ui->interfaceTree->selectionModel()->clearSelection();
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ui->interfaceTree->selectionModel()->select(mySelection, QItemSelectionModel::SelectCurrent);
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#endif
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}
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void InterfaceFrame::interfaceTreeSelectionChanged(const QItemSelection & selected, const QItemSelection & deselected)
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{
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if (selected.count() == 0 && deselected.count() == 0)
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return;
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if (source_model_.rowCount() == 0)
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return;
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#ifdef HAVE_LIBPCAP
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/* Take all selected interfaces, not just the newly ones */
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QItemSelection allSelected = ui->interfaceTree->selectionModel()->selection();
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QItemSelection sourceSelection = proxy_model_.mapSelectionToSource(info_model_.mapSelectionToSource(allSelected));
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if (source_model_.updateSelectedDevices(sourceSelection))
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emit itemSelectionChanged();
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#endif
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}
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void InterfaceFrame::on_interfaceTree_doubleClicked(const QModelIndex &index)
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{
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QModelIndex realIndex = proxy_model_.mapToSource(info_model_.mapToSource(index));
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if (! realIndex.isValid())
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return;
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#ifdef HAVE_LIBPCAP
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QString device_name = source_model_.getColumnContent(realIndex.row(), IFTREE_COL_NAME).toString();
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QString extcap_string = source_model_.getColumnContent(realIndex.row(), IFTREE_COL_EXTCAP_PATH).toString();
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/* We trust the string here. If this interface is really extcap, the string is
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* being checked immediatly before the dialog is being generated */
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if (extcap_string.length() > 0)
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{
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/* this checks if configuration is required and not yet provided or saved via prefs */
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if (extcap_has_configuration((const char *)(device_name.toStdString().c_str()), TRUE))
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{
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emit showExtcapOptions(device_name, true);
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return;
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}
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}
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#endif
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emit startCapture();
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}
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#ifdef HAVE_LIBPCAP
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void InterfaceFrame::on_interfaceTree_clicked(const QModelIndex &index)
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{
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if (index.column() == 0)
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{
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QModelIndex realIndex = proxy_model_.mapToSource(info_model_.mapToSource(index));
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if (! realIndex.isValid())
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return;
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QString device_name = source_model_.getColumnContent(realIndex.row(), IFTREE_COL_NAME).toString();
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QString extcap_string = source_model_.getColumnContent(realIndex.row(), IFTREE_COL_EXTCAP_PATH).toString();
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/* We trust the string here. If this interface is really extcap, the string is
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* being checked immediatly before the dialog is being generated */
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if (extcap_string.length() > 0)
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{
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/* this checks if configuration is required and not yet provided or saved via prefs */
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if (extcap_has_configuration((const char *)(device_name.toStdString().c_str()), FALSE))
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{
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emit showExtcapOptions(device_name, false);
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return;
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}
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}
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}
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}
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#endif
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void InterfaceFrame::updateStatistics(void)
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{
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if (source_model_.rowCount() == 0)
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return;
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#ifdef HAVE_LIBPCAP
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for (int idx = 0; idx < proxy_model_.rowCount(); idx++)
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{
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QModelIndex selectIndex = info_model_.mapFromSource(proxy_model_.mapFromSource(source_model_.index(idx, 0)));
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/* Proxy model has not masked out the interface */
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if (selectIndex.isValid())
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source_model_.updateStatistic(idx);
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}
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#endif
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}
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/* Proxy Method so we do not need to expose the source model */
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void InterfaceFrame::getPoints(int idx, PointList * pts)
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{
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source_model_.getPoints(idx, pts);
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}
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void InterfaceFrame::showRunOnFile(void)
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{
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ui->warningLabel->setText("Interfaces not loaded on startup (run on capture file). Go to Capture -> Refresh Interfaces to load.");
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}
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void InterfaceFrame::showContextMenu(QPoint pos)
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{
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QMenu ctx_menu;
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ctx_menu.addAction(tr("Start capture"), this, SIGNAL(startCapture()));
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ctx_menu.exec(ui->interfaceTree->mapToGlobal(pos));
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}
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void InterfaceFrame::on_warningLabel_linkActivated(const QString &link)
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{
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if (link.compare(no_capture_link) == 0) {
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recent.sys_warn_if_no_capture = FALSE;
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resetInterfaceTreeDisplay();
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} else {
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QDesktopServices::openUrl(QUrl(link));
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}
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}
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