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/* frame_information.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/epan_dissect.h>
#include "epan/epan.h"
#include "epan/column.h"
#include "epan/ftypes/ftypes.h"
#include "wiretap/wtap.h"
#include "cfile.h"
#include "file.h"
#include <ui/qt/capture_file.h>
#include "frame_tvbuff.h"
#include <stdint.h>
#include <ui/qt/utils/frame_information.h>
FrameInformation::FrameInformation(CaptureFile * capfile, frame_data * fi, QObject * parent)
:QObject(parent),
fi_(fi),
cap_file_(capfile),
edt_(Q_NULLPTR)
{
wtap_rec_init(&rec_);
ws_buffer_init(&buf_, 1514);
loadFrameTree();
}
void FrameInformation::loadFrameTree()
{
if (! fi_ || ! cap_file_ || !cap_file_->capFile())
return;
if (!cf_read_record(cap_file_->capFile(), fi_, &rec_, &buf_))
return;
edt_ = g_new0(epan_dissect_t, 1);
/* proto tree, visible. We need a proto tree if there's custom columns */
epan_dissect_init(edt_, cap_file_->capFile()->epan, true, true);
col_custom_prime_edt(edt_, &(cap_file_->capFile()->cinfo));
epan_dissect_run(edt_, cap_file_->capFile()->cd_t, &rec_,
frame_tvbuff_new_buffer(&cap_file_->capFile()->provider, fi_, &buf_),
fi_, &(cap_file_->capFile()->cinfo));
epan_dissect_fill_in_columns(edt_, true, true);
}
FrameInformation::~FrameInformation()
{
if (edt_) {
epan_dissect_cleanup(edt_);
g_free(edt_);
}
wtap_rec_cleanup(&rec_);
ws_buffer_free(&buf_);
}
bool FrameInformation::isValid()
{
bool ret = false;
if (fi_ && cap_file_ && edt_ && edt_->tvb)
{
ret = true;
}
return ret;
}
frame_data * FrameInformation::frameData() const
{
return fi_;
}
int FrameInformation::frameNum() const
{
if (! fi_)
return -1;
return fi_->num;
}
const QByteArray FrameInformation::printableData()
{
if (!fi_ || !edt_)
return QByteArray();
int length = tvb_captured_length(edt_->tvb);
const char *data = (const char *)tvb_get_ptr(edt_->tvb, 0, length);
return QByteArray(data, length);
}
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