484600afc2
Use the new limit to display filter flag for the tap listener when the Limit to Display Filter box is checked, so that the tap uses the main display filter at the same time as the main display filter is applied to the packet list, instead of tapping occuring with the old filter first, and then a tap with the new filter. This removes an additional tap when the main display filter is changed.
149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
/* rtp_stream.c
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* RTP streams summary addition for Wireshark
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*
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* Copyright 2003, Alcatel Business Systems
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* By Lars Ruoff <lars.ruoff@gmx.net>
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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 <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "file.h"
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#include <epan/epan.h>
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#include <epan/packet.h>
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#include <epan/tap.h>
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#include <epan/dissectors/packet-rtp.h>
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#include <epan/addr_resolv.h>
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#include "ui/alert_box.h"
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#include "ui/simple_dialog.h"
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#include "ui/rtp_stream.h"
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#include "ui/tap-rtp-common.h"
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#include <wsutil/file_util.h>
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/****************************************************************************/
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/* scan for RTP streams */
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void
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show_tap_registration_error(GString *error_string)
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{
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"%s", error_string->str);
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}
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/****************************************************************************/
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/* scan for RTP streams */
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void rtpstream_scan(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, const char *fstring)
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{
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bool was_registered;
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if (!tapinfo || !cap_file) {
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return;
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}
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was_registered = tapinfo->is_registered;
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if (!tapinfo->is_registered)
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register_tap_listener_rtpstream(tapinfo, fstring, show_tap_registration_error);
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/* RTP_STREAM_DEBUG("scanning %s, filter: %s", cap_file->filename, fstring); */
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tapinfo->mode = TAP_ANALYSE;
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cf_retap_packets(cap_file);
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if (!was_registered)
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remove_tap_listener_rtpstream(tapinfo);
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}
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/****************************************************************************/
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/* save rtp dump of stream_fwd */
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bool rtpstream_save(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream, const char *filename)
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{
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bool was_registered;
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if (!tapinfo) {
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return false;
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}
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was_registered = tapinfo->is_registered;
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/* open file for saving */
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tapinfo->save_file = ws_fopen(filename, "wb");
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if (tapinfo->save_file==NULL) {
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open_failure_alert_box(filename, errno, true);
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return false;
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}
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rtp_write_header(stream, tapinfo->save_file);
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if (ferror(tapinfo->save_file)) {
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write_failure_alert_box(filename, errno);
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fclose(tapinfo->save_file);
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return false;
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}
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if (!tapinfo->is_registered)
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register_tap_listener_rtpstream(tapinfo, NULL, show_tap_registration_error);
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tapinfo->mode = TAP_SAVE;
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tapinfo->filter_stream_fwd = stream;
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cf_retap_packets(cap_file);
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tapinfo->mode = TAP_ANALYSE;
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if (!was_registered)
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remove_tap_listener_rtpstream(tapinfo);
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if (ferror(tapinfo->save_file)) {
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write_failure_alert_box(filename, errno);
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fclose(tapinfo->save_file);
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return false;
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}
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if (fclose(tapinfo->save_file) == EOF) {
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write_failure_alert_box(filename, errno);
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return false;
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}
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return true;
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}
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/****************************************************************************/
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/* mark packets in stream_fwd or stream_rev */
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void rtpstream_mark(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream_fwd, rtpstream_info_t* stream_rev)
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{
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bool was_registered;
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if (!tapinfo) {
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return;
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}
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was_registered = tapinfo->is_registered;
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if (!tapinfo->is_registered)
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register_tap_listener_rtpstream(tapinfo, NULL, show_tap_registration_error);
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tapinfo->mode = TAP_MARK;
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tapinfo->filter_stream_fwd = stream_fwd;
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tapinfo->filter_stream_rev = stream_rev;
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cf_retap_packets(cap_file);
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tapinfo->mode = TAP_ANALYSE;
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if (!was_registered)
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remove_tap_listener_rtpstream(tapinfo);
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}
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void rtpstream_set_apply_display_filter(rtpstream_tapinfo_t *tapinfo, bool apply)
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{
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if (tapinfo->apply_display_filter != apply) {
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set_tap_flags(tapinfo, apply ? TL_LIMIT_TO_DISPLAY_FILTER : 0);
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tapinfo->apply_display_filter = apply;
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}
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}
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