forked from osmocom/wireshark
![Roland Knall](/assets/img/avatar_default.png)
Allow the hover selection to be either configured via context menu or by pressing the Ctrl key while moving the mouse. The configuration is stored via profile
355 lines
11 KiB
C++
355 lines
11 KiB
C++
/* byte_view_tab.cpp
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "byte_view_tab.h"
|
|
|
|
#include <QApplication>
|
|
#include <QClipboard>
|
|
#include <QMimeData>
|
|
#include <QTabBar>
|
|
|
|
#include "cfile.h"
|
|
#include "epan/epan_dissect.h"
|
|
#include "epan/tvbuff-int.h"
|
|
|
|
#include <wireshark_application.h>
|
|
|
|
#include <ui/qt/utils/variant_pointer.h>
|
|
#include <ui/qt/widgets/byte_view_text.h>
|
|
|
|
#define tvb_data_property "tvb_data_property"
|
|
|
|
// To do:
|
|
// - We might want to add a callback to free_data_sources in so that we
|
|
// don't have to blindly call clear().
|
|
|
|
ByteViewTab::ByteViewTab(QWidget *parent, epan_dissect_t *edt_fixed) :
|
|
QTabWidget(parent),
|
|
cap_file_(0),
|
|
is_fixed_packet_(edt_fixed != NULL),
|
|
edt_(edt_fixed),
|
|
disable_hover_(false)
|
|
{
|
|
setAccessibleName(tr("Packet bytes"));
|
|
setTabPosition(QTabWidget::South);
|
|
setDocumentMode(true);
|
|
|
|
// Shrink down to a small but nonzero size in the main splitter.
|
|
int one_em = fontMetrics().height();
|
|
setMinimumSize(one_em, one_em);
|
|
|
|
if (!edt_fixed) {
|
|
connect(wsApp, SIGNAL(appInitialized()), this, SLOT(connectToMainWindow()));
|
|
}
|
|
}
|
|
|
|
// Connects the byte view with the main window, acting on changes to the packet
|
|
// list selection. It MUST NOT be used with the packet dialog as that is
|
|
// independent of the selection in the packet list.
|
|
void ByteViewTab::connectToMainWindow()
|
|
{
|
|
connect(this, SIGNAL(fieldSelected(FieldInformation *)),
|
|
wsApp->mainWindow(), SIGNAL(fieldSelected(FieldInformation *)));
|
|
connect(this, SIGNAL(fieldHighlight(FieldInformation *)),
|
|
wsApp->mainWindow(), SIGNAL(fieldHighlight(FieldInformation *)));
|
|
|
|
/* Connect change of packet selection */
|
|
connect(wsApp->mainWindow(), SIGNAL(framesSelected(QList<int>)), this, SLOT(selectedFrameChanged(QList<int>)));
|
|
connect(wsApp->mainWindow(), SIGNAL(setCaptureFile(capture_file*)), this, SLOT(setCaptureFile(capture_file*)));
|
|
connect(wsApp->mainWindow(), SIGNAL(fieldSelected(FieldInformation *)), this, SLOT(selectedFieldChanged(FieldInformation *)));
|
|
|
|
connect(wsApp->mainWindow(), SIGNAL(captureActive(int)), this, SLOT(captureActive(int)));
|
|
}
|
|
|
|
void ByteViewTab::captureActive(int cap)
|
|
{
|
|
if (cap == 0)
|
|
{
|
|
QList<ByteViewText *> allBVTs = findChildren<ByteViewText *>();
|
|
if (allBVTs.count() > 0)
|
|
{
|
|
ByteViewText * bvt = allBVTs.at(0);
|
|
tvbuff_t * stored = VariantPointer<tvbuff_t>::asPtr(bvt->property(tvb_data_property));
|
|
|
|
if (! stored)
|
|
selectedFrameChanged(QList<int>());
|
|
}
|
|
}
|
|
}
|
|
|
|
void ByteViewTab::addTab(const char *name, tvbuff_t *tvb) {
|
|
if (count() == 1) { // Remove empty placeholder.
|
|
ByteViewText *cur_text = qobject_cast<ByteViewText *>(currentWidget());
|
|
if (cur_text && cur_text->isEmpty()) delete currentWidget();
|
|
}
|
|
|
|
packet_char_enc encoding = PACKET_CHAR_ENC_CHAR_ASCII;
|
|
if (cap_file_ && cap_file_->current_frame)
|
|
encoding = (packet_char_enc)cap_file_->current_frame->encoding;
|
|
|
|
QByteArray data;
|
|
if (tvb) {
|
|
int data_len = (int) tvb_captured_length(tvb);
|
|
if (data_len > 0) {
|
|
// Note: this does not copy the data and will be invalidated when
|
|
// the tvb becomes invalid (e.g. when the current packet changes).
|
|
data = QByteArray::fromRawData((const char *) tvb_get_ptr(tvb, 0, data_len), data_len);
|
|
}
|
|
}
|
|
|
|
ByteViewText * byte_view_text = new ByteViewText(data, encoding, this);
|
|
byte_view_text->setAccessibleName(name);
|
|
byte_view_text->setMonospaceFont(wsApp->monospaceFont(true));
|
|
|
|
if (tvb)
|
|
{
|
|
byte_view_text->setProperty(tvb_data_property, VariantPointer<tvbuff_t>::asQVariant(tvb));
|
|
|
|
connect(wsApp, SIGNAL(zoomMonospaceFont(QFont)), byte_view_text, SLOT(setMonospaceFont(QFont)));
|
|
|
|
connect(byte_view_text, SIGNAL(byteHovered(int)), this, SLOT(byteViewTextHovered(int)));
|
|
connect(byte_view_text, SIGNAL(byteSelected(int)), this, SLOT(byteViewTextMarked(int)));
|
|
connect(byte_view_text, SIGNAL(byteViewSettingsChanged()), this, SIGNAL(byteViewSettingsChanged()));
|
|
connect(this, SIGNAL(byteViewSettingsChanged()), byte_view_text, SLOT(updateByteViewSettings()));
|
|
}
|
|
|
|
int idx = QTabWidget::addTab(byte_view_text, name);
|
|
byte_view_text->setProperty("tab_index", QVariant::fromValue(idx));
|
|
|
|
QTabWidget::setTabToolTip(idx, name);
|
|
}
|
|
|
|
void ByteViewTab::byteViewTextHovered(int idx)
|
|
{
|
|
if (idx >= 0 && edt_)
|
|
{
|
|
tvbuff_t * tvb = VariantPointer<tvbuff_t>::asPtr(sender()->property(tvb_data_property));
|
|
proto_tree * tree = edt_->tree;
|
|
|
|
if (tvb && tree)
|
|
{
|
|
field_info * fi = proto_find_field_from_offset(tree, idx, tvb);
|
|
if (fi)
|
|
{
|
|
FieldInformation finfo(fi, this);
|
|
highlightedFieldChanged(&finfo);
|
|
emit fieldHighlight(&finfo);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
emit fieldHighlight((FieldInformation *)0);
|
|
}
|
|
|
|
void ByteViewTab::byteViewTextMarked(int idx)
|
|
{
|
|
if (idx >= 0 && edt_)
|
|
{
|
|
tvbuff_t * tvb = VariantPointer<tvbuff_t>::asPtr(sender()->property(tvb_data_property));
|
|
proto_tree * tree = edt_->tree;
|
|
|
|
if (tvb && tree)
|
|
{
|
|
field_info * fi = proto_find_field_from_offset(tree, idx, tvb);
|
|
if (fi)
|
|
{
|
|
FieldInformation finfo(fi, this);
|
|
emit fieldSelected(&finfo);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
emit fieldSelected((FieldInformation *)0);
|
|
}
|
|
|
|
ByteViewText * ByteViewTab::findByteViewTextForTvb(tvbuff_t * search_tvb, int * idx)
|
|
{
|
|
|
|
ByteViewText * item = 0;
|
|
if (! search_tvb)
|
|
return item;
|
|
|
|
bool found = false;
|
|
|
|
QList<ByteViewText *> allBVTs = findChildren<ByteViewText *>();
|
|
unsigned int length = search_tvb->length;
|
|
for (int i = 0; i < allBVTs.size() && ! found; ++i)
|
|
{
|
|
ByteViewText * bvt = allBVTs.at(i);
|
|
tvbuff_t * stored = VariantPointer<tvbuff_t>::asPtr(bvt->property(tvb_data_property));
|
|
if (stored == search_tvb)
|
|
{
|
|
found = true;
|
|
}
|
|
else if (stored)
|
|
{
|
|
if (stored->length >= length && tvb_memeql(search_tvb, 0, tvb_get_ptr(stored, 0, length), length) == 0)
|
|
{
|
|
/* In packetDialog we do not match, because we came from different data sources.
|
|
* Assuming the capture files match, this should be a sufficient enough difference */
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
if (found)
|
|
{
|
|
int wdgIdx = bvt->property("tab_index").toInt();
|
|
if (idx)
|
|
{
|
|
*idx = wdgIdx;
|
|
}
|
|
item = (ByteViewText *)widget(wdgIdx);
|
|
}
|
|
}
|
|
|
|
return item;
|
|
}
|
|
|
|
void ByteViewTab::tabInserted(int tab_index) {
|
|
setTabsVisible();
|
|
QTabWidget::tabInserted(tab_index);
|
|
}
|
|
|
|
void ByteViewTab::tabRemoved(int tab_index) {
|
|
setTabsVisible();
|
|
QTabWidget::tabRemoved(tab_index);
|
|
}
|
|
|
|
void ByteViewTab::setTabsVisible() {
|
|
if (count() > 1)
|
|
tabBar()->show();
|
|
else
|
|
tabBar()->hide();
|
|
}
|
|
|
|
void ByteViewTab::selectedFrameChanged(QList<int> frames)
|
|
{
|
|
clear();
|
|
qDeleteAll(findChildren<ByteViewText *>());
|
|
|
|
if (!is_fixed_packet_) {
|
|
/* If this is not a fixed packet (not the packet dialog), it must be the
|
|
* byte view associated with the packet list. */
|
|
if (cap_file_ && cap_file_->edt) {
|
|
/* Assumes that this function is called as a result of selecting a
|
|
* packet in the packet list (PacketList::selectionChanged). That
|
|
* invokes "cf_select_packet" which will update "cap_file_->edt". */
|
|
edt_ = cap_file_->edt;
|
|
} else {
|
|
/* capture file is closing or packet is deselected. */
|
|
edt_ = NULL;
|
|
}
|
|
}
|
|
|
|
/* only show the bytes for single selections */
|
|
if (frames.count() == 1)
|
|
{
|
|
if (! cap_file_ || ! cap_file_->edt)
|
|
return;
|
|
|
|
/* This code relies on a dissection, which had happened somewhere else. It also does not
|
|
* really check, if the dissection happened for the correct frame. In the future we might
|
|
* rewrite this for directly calling the dissection engine here. */
|
|
GSList *src_le;
|
|
for (src_le = edt_->pi.data_src; src_le != NULL; src_le = src_le->next) {
|
|
struct data_source *source;
|
|
char* source_name;
|
|
source = (struct data_source *)src_le->data;
|
|
source_name = get_data_source_name(source);
|
|
addTab(source_name, get_data_source_tvb(source));
|
|
wmem_free(NULL, source_name);
|
|
}
|
|
}
|
|
else
|
|
addTab("PlaceHolder", 0);
|
|
|
|
setCurrentIndex(0);
|
|
}
|
|
|
|
void ByteViewTab::selectedFieldChanged(FieldInformation *selected)
|
|
{
|
|
// We need to handle both selection and deselection.
|
|
ByteViewText * byte_view_text = qobject_cast<ByteViewText *>(currentWidget());
|
|
int f_start = -1, f_length = -1;
|
|
int p_start = -1, p_length = -1;
|
|
int fa_start = -1, fa_length = -1;
|
|
|
|
if (selected) {
|
|
if (selected->parent() == this) {
|
|
// We only want inbound signals.
|
|
return;
|
|
}
|
|
const field_info *fi = selected->fieldInfo();
|
|
|
|
int idx = 0;
|
|
if (fi)
|
|
byte_view_text = findByteViewTextForTvb(fi->ds_tvb, &idx);
|
|
|
|
if (cap_file_->search_in_progress && (cap_file_->hex || (cap_file_->string && cap_file_->packet_data))) {
|
|
// In the hex view, only highlight the target bytes or string. The entire
|
|
// field can then be displayed by clicking on any of the bytes in the field.
|
|
f_start = cap_file_->search_pos - cap_file_->search_len + 1;
|
|
f_length = (int) cap_file_->search_len;
|
|
} else {
|
|
f_start = selected->position().start;
|
|
f_length = selected->position().length;
|
|
}
|
|
|
|
setCurrentIndex(idx);
|
|
|
|
FieldInformation *parentField = selected->parentField();
|
|
|
|
p_start = parentField->position().start;
|
|
p_length = parentField->position().length;
|
|
fa_start = selected->appendix().start;
|
|
fa_length = selected->appendix().length;
|
|
|
|
delete parentField;
|
|
}
|
|
|
|
if (byte_view_text)
|
|
{
|
|
byte_view_text->markField(f_start, f_length);
|
|
byte_view_text->markProtocol(p_start, p_length);
|
|
byte_view_text->markAppendix(fa_start, fa_length);
|
|
}
|
|
}
|
|
void ByteViewTab::highlightedFieldChanged(FieldInformation *highlighted)
|
|
{
|
|
ByteViewText * byte_view_text = qobject_cast<ByteViewText *>(currentWidget());
|
|
if (!highlighted || !byte_view_text) {
|
|
return;
|
|
}
|
|
|
|
int f_start = -1, f_length = -1;
|
|
|
|
if (cap_file_->search_in_progress && (cap_file_->hex || (cap_file_->string && cap_file_->packet_data))) {
|
|
// In the hex view, only highlight the target bytes or string. The entire
|
|
// field can then be displayed by clicking on any of the bytes in the field.
|
|
f_start = cap_file_->search_pos - cap_file_->search_len + 1;
|
|
f_length = (int) cap_file_->search_len;
|
|
} else {
|
|
f_start = highlighted->position().start;
|
|
f_length = highlighted->position().length;
|
|
}
|
|
|
|
byte_view_text->markField(f_start, f_length, false);
|
|
byte_view_text->markProtocol(-1, -1);
|
|
byte_view_text->markAppendix(-1, -1);
|
|
}
|
|
|
|
void ByteViewTab::setCaptureFile(capture_file *cf)
|
|
{
|
|
selectedFrameChanged(QList<int>());
|
|
|
|
cap_file_ = cf;
|
|
}
|