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/* rtp_stream.c
* RTP streams summary addition for Wireshark
*
* Copyright 2003, Alcatel Business Systems
* By Lars Ruoff <lars.ruoff@gmx.net>
*
* 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 <errno.h>
#include <stdlib.h>
#include <string.h>
#include "file.h"
#include <epan/epan.h>
#include <epan/packet.h>
#include <epan/tap.h>
#include <epan/dissectors/packet-rtp.h>
#include <epan/addr_resolv.h>
#include "ui/alert_box.h"
#include "ui/simple_dialog.h"
#include "ui/rtp_stream.h"
#include "ui/tap-rtp-common.h"
#include <wsutil/file_util.h>
/****************************************************************************/
/* scan for RTP streams */
void
show_tap_registration_error(GString *error_string)
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"%s", error_string->str);
}
/****************************************************************************/
/* scan for RTP streams */
void rtpstream_scan(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, const char *fstring)
{
bool was_registered;
if (!tapinfo || !cap_file) {
return;
}
was_registered = tapinfo->is_registered;
if (!tapinfo->is_registered)
register_tap_listener_rtpstream(tapinfo, fstring, show_tap_registration_error);
/* RTP_STREAM_DEBUG("scanning %s, filter: %s", cap_file->filename, fstring); */
tapinfo->mode = TAP_ANALYSE;
cf_retap_packets(cap_file);
if (!was_registered)
remove_tap_listener_rtpstream(tapinfo);
}
/****************************************************************************/
/* save rtp dump of stream_fwd */
bool rtpstream_save(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream, const char *filename)
{
bool was_registered;
if (!tapinfo) {
return false;
}
was_registered = tapinfo->is_registered;
/* open file for saving */
tapinfo->save_file = ws_fopen(filename, "wb");
if (tapinfo->save_file==NULL) {
open_failure_alert_box(filename, errno, true);
return false;
}
rtp_write_header(stream, tapinfo->save_file);
if (ferror(tapinfo->save_file)) {
write_failure_alert_box(filename, errno);
fclose(tapinfo->save_file);
return false;
}
if (!tapinfo->is_registered)
register_tap_listener_rtpstream(tapinfo, NULL, show_tap_registration_error);
tapinfo->mode = TAP_SAVE;
tapinfo->filter_stream_fwd = stream;
cf_retap_packets(cap_file);
tapinfo->mode = TAP_ANALYSE;
if (!was_registered)
remove_tap_listener_rtpstream(tapinfo);
if (ferror(tapinfo->save_file)) {
write_failure_alert_box(filename, errno);
fclose(tapinfo->save_file);
return false;
}
if (fclose(tapinfo->save_file) == EOF) {
write_failure_alert_box(filename, errno);
return false;
}
return true;
}
/****************************************************************************/
/* mark packets in stream_fwd or stream_rev */
void rtpstream_mark(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream_fwd, rtpstream_info_t* stream_rev)
{
bool was_registered;
if (!tapinfo) {
return;
}
was_registered = tapinfo->is_registered;
if (!tapinfo->is_registered)
register_tap_listener_rtpstream(tapinfo, NULL, show_tap_registration_error);
tapinfo->mode = TAP_MARK;
tapinfo->filter_stream_fwd = stream_fwd;
tapinfo->filter_stream_rev = stream_rev;
cf_retap_packets(cap_file);
tapinfo->mode = TAP_ANALYSE;
if (!was_registered)
remove_tap_listener_rtpstream(tapinfo);
}
void rtpstream_set_apply_display_filter(rtpstream_tapinfo_t *tapinfo, bool apply)
{
if (tapinfo->apply_display_filter != apply) {
set_tap_flags(tapinfo, apply ? TL_LIMIT_TO_DISPLAY_FILTER : 0);
tapinfo->apply_display_filter = apply;
}
}
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