forked from osmocom/wireshark
7db8eea5c6
of 16 bytes. Use "sizeof" for the size of e_guid_t's, and use structure assignment to copy GUID values. Make functions such as append_h225ras_call() and new_h225ras_call() take pointers to e_guid_t's as arguments. Define GUID_LEN in epan/guid-utils.h and use it as the length of a GUID in a packet. (Note that "sizeof e_guid_t" is not guaranteed to be 16, although it is guaranteed to be the size of an e_guid_t.) When constructing a display filter that matches a GUID, use guid_to_str() to construct the string for the GUID. svn path=/trunk/; revision=17676
2709 lines
85 KiB
C
2709 lines
85 KiB
C
/* voip_calls.c
|
|
* VoIP calls summary addition for ethereal
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|
*
|
|
* $Id$
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*
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* Copyright 2004, Ericsson, Spain
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* By Francisco Alcoba <francisco.alcoba@ericsson.com>
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*
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|
* based on h323_calls.c
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* Copyright 2004, Iskratel, Ltd, Kranj
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* By Miha Jemec <m.jemec@iskratel.si>
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*
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* H323, RTP, RTP Event, MGCP, AudioCodes (ISDN PRI and CAS), T38 and Graph Support
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* By Alejandro Vaquero, alejandro.vaquero@verso.com
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* Copyright 2005, Verso Technologies Inc.
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
|
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
|
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* along with this program; if not, write to the Free Software
|
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include "graph_analysis.h"
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#include "voip_calls.h"
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#include "voip_calls_dlg.h"
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#include "main.h"
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#include "globals.h"
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#include <epan/tap.h>
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#include <epan/dissectors/packet-sip.h>
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#include <epan/dissectors/packet-mtp3.h>
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#include <epan/dissectors/packet-isup.h>
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#include <epan/dissectors/packet-h225.h>
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#include <epan/dissectors/packet-h245.h>
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#include <epan/dissectors/packet-q931.h>
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#include <epan/dissectors/packet-sdp.h>
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#include <plugins/mgcp/packet-mgcp.h>
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#include <epan/dissectors/packet-actrace.h>
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#include <epan/dissectors/packet-rtp.h>
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#include <epan/dissectors/packet-rtp-events.h>
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#include <epan/dissectors/packet-t38.h>
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#include <epan/conversation.h>
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#include <epan/rtp_pt.h>
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#include "alert_box.h"
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#include "simple_dialog.h"
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const char *voip_call_state_name[7]={
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"CALL SETUP",
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"RINGING",
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"IN CALL",
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"CANCELLED",
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"COMPLETED",
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"REJECTED",
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"UNKNOWN"
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};
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/* defines whether we can consider the call active */
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const char *voip_protocol_name[7]={
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"SIP",
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"ISUP",
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"H323",
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"MGCP",
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"AC_ISDN",
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"AC_CAS",
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"T38"
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};
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typedef struct {
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gchar *frame_label;
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gchar *comment;
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} graph_str;
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#define H245_MAX 6
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|
|
typedef struct {
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guint32 frame_num;
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gint8 labels_count;
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graph_str labels[H245_MAX];
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} h245_labels_t;
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|
|
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static h245_labels_t h245_labels;
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|
|
|
/****************************************************************************/
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|
/* the one and only global voip_calls_tapinfo_t structure */
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static voip_calls_tapinfo_t the_tapinfo_struct =
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{0, NULL, 0, NULL, 0, 0, 0, 0, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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|
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/* the one and only global voip_rtp_tapinfo_t structure */
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static voip_rtp_tapinfo_t the_tapinfo_rtp_struct =
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{0, NULL, 0, 0};
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|
|
|
/****************************************************************************/
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/* when there is a [re]reading of packet's */
|
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void voip_calls_reset(voip_calls_tapinfo_t *tapinfo)
|
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{
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voip_calls_info_t *strinfo;
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sip_calls_info_t *tmp_sipinfo;
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h323_calls_info_t *tmp_h323info;
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h245_address_t *h245_add;
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graph_analysis_item_t *graph_item;
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|
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GList* list;
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GList* list2;
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|
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/* free the data items first */
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list = g_list_first(tapinfo->strinfo_list);
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while (list)
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{
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strinfo = list->data;
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g_free(strinfo->from_identity);
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g_free(strinfo->to_identity);
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g_free((void *)(strinfo->initial_speaker.data));
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if (strinfo->protocol == VOIP_SIP){
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tmp_sipinfo = strinfo->prot_info;
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g_free(tmp_sipinfo->call_identifier);
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}
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if (strinfo->protocol == VOIP_H323){
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tmp_h323info = strinfo->prot_info;
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g_free(tmp_h323info->guid);
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/* free the H245 list address */
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list2 = g_list_first(tmp_h323info->h245_list);
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while (list2)
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{
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h245_add=list2->data;
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g_free((void *)h245_add->h245_address.data);
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g_free(list2->data);
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list2 = g_list_next(list2);
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}
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g_list_free(tmp_h323info->h245_list);
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tmp_h323info->h245_list = NULL;
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}
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g_free(strinfo->prot_info);
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g_free(list->data);
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list = g_list_next(list);
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}
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g_list_free(tapinfo->strinfo_list);
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tapinfo->strinfo_list = NULL;
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tapinfo->ncalls = 0;
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tapinfo->npackets = 0;
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tapinfo->start_packets = 0;
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tapinfo->completed_calls = 0;
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tapinfo->rejected_calls = 0;
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/* free the graph data items first */
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list = g_list_first(tapinfo->graph_analysis->list);
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while (list)
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{
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graph_item = list->data;
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g_free(graph_item->frame_label);
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g_free(graph_item->comment);
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g_free((void *)graph_item->src_addr.data);
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g_free((void *)graph_item->dst_addr.data);
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g_free(list->data);
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list = g_list_next(list);
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}
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g_list_free(tapinfo->graph_analysis->list);
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tapinfo->graph_analysis->nconv = 0;
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tapinfo->graph_analysis->list = NULL;
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++(tapinfo->launch_count);
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|
return;
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}
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/****************************************************************************/
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void graph_analysis_data_init(void){
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the_tapinfo_struct.graph_analysis = g_malloc(sizeof(graph_analysis_info_t));
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the_tapinfo_struct.graph_analysis->nconv = 0;
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the_tapinfo_struct.graph_analysis->list = NULL;
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}
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/****************************************************************************/
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/* Add a new item into the graph */
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static int add_to_graph(voip_calls_tapinfo_t *tapinfo _U_, packet_info *pinfo, const gchar *frame_label, gchar *comment, guint16 call_num, address *src_addr, address *dst_addr, guint16 line_style)
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{
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graph_analysis_item_t *gai;
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gai = g_malloc(sizeof(graph_analysis_item_t));
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gai->frame_num = pinfo->fd->num;
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gai->time= nstime_to_sec(&pinfo->fd->rel_ts);
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COPY_ADDRESS(&(gai->src_addr),src_addr);
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COPY_ADDRESS(&(gai->dst_addr),dst_addr);
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gai->port_src=pinfo->srcport;
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gai->port_dst=pinfo->destport;
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if (frame_label != NULL)
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gai->frame_label = g_strdup(frame_label);
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else
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gai->frame_label = g_strdup("");
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if (comment != NULL)
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gai->comment = g_strdup(comment);
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else
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gai->comment = g_strdup("");
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gai->conv_num=call_num;
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gai->line_style=line_style;
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gai->display=FALSE;
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tapinfo->graph_analysis->list = g_list_append(tapinfo->graph_analysis->list, gai);
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return 1;
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}
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|
|
/****************************************************************************/
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/* Append str to frame_label and comment in a graph item */
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/* return 0 if the frame_num is not in the graph list */
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static int append_to_frame_graph(voip_calls_tapinfo_t *tapinfo _U_, guint32 frame_num, const gchar *new_frame_label, const gchar *new_comment)
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{
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graph_analysis_item_t *gai;
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GList* list;
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gchar *tmp_str = NULL;
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gchar *tmp_str2 = NULL;
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list = g_list_first(tapinfo->graph_analysis->list);
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while (list)
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{
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gai = list->data;
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if (gai->frame_num == frame_num){
|
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tmp_str = gai->frame_label;
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tmp_str2 = gai->comment;
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if (new_frame_label != NULL){
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gai->frame_label = g_strdup_printf("%s %s", gai->frame_label, new_frame_label);
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g_free(tmp_str);
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}
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|
|
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if (new_comment != NULL){
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gai->comment = g_strdup_printf("%s %s", gai->comment, new_comment);
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g_free(tmp_str2);
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}
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break;
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}
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list = g_list_next (list);
|
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}
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if (tmp_str == NULL) return 0; /* it is not in the list */
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return 1;
|
|
|
|
}
|
|
|
|
/****************************************************************************/
|
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/* Change the frame_label and comment in a graph item if not NULL*/
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/* return 0 if the frame_num is not in the graph list */
|
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static int change_frame_graph(voip_calls_tapinfo_t *tapinfo _U_, guint32 frame_num, const gchar *new_frame_label, const gchar *new_comment)
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{
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graph_analysis_item_t *gai;
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GList* list;
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gchar *tmp_str = NULL;
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gchar *tmp_str2 = NULL;
|
|
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list = g_list_first(tapinfo->graph_analysis->list);
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while (list)
|
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{
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gai = list->data;
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if (gai->frame_num == frame_num){
|
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tmp_str = gai->frame_label;
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tmp_str2 = gai->comment;
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|
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if (new_frame_label != NULL){
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gai->frame_label = g_strdup(new_frame_label);
|
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g_free(tmp_str);
|
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}
|
|
|
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if (new_comment != NULL){
|
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gai->comment = g_strdup(new_comment);
|
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g_free(tmp_str2);
|
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}
|
|
break;
|
|
}
|
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list = g_list_next (list);
|
|
}
|
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if (tmp_str == NULL) return 0; /* it is not in the list */
|
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return 1;
|
|
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Change all the graph items with call_num to new_call_num */
|
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static guint change_call_num_graph(voip_calls_tapinfo_t *tapinfo _U_, guint16 call_num, guint16 new_call_num)
|
|
{
|
|
graph_analysis_item_t *gai;
|
|
GList* list;
|
|
guint items_changed;
|
|
|
|
items_changed = 0;
|
|
list = g_list_first(tapinfo->graph_analysis->list);
|
|
while (list)
|
|
{
|
|
gai = list->data;
|
|
if (gai->conv_num == call_num){
|
|
gai->conv_num = new_call_num;
|
|
items_changed++;
|
|
}
|
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list = g_list_next (list);
|
|
}
|
|
return items_changed;
|
|
}
|
|
|
|
|
|
|
|
|
|
/****************************************************************************/
|
|
/* Insert the item in the graph list */
|
|
void insert_to_graph(voip_calls_tapinfo_t *tapinfo _U_, packet_info *pinfo, const gchar *frame_label, gchar *comment, guint16 call_num, address *src_addr, address *dst_addr, guint16 line_style, double time, guint32 frame_num)
|
|
{
|
|
graph_analysis_item_t *gai, *new_gai;
|
|
GList* list;
|
|
guint item_num;
|
|
gboolean inserted;
|
|
|
|
new_gai = g_malloc(sizeof(graph_analysis_item_t));
|
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new_gai->frame_num = frame_num;
|
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new_gai->time= time;
|
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COPY_ADDRESS(&(new_gai->src_addr),src_addr);
|
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COPY_ADDRESS(&(new_gai->dst_addr),dst_addr);
|
|
|
|
new_gai->port_src=pinfo->srcport;
|
|
new_gai->port_dst=pinfo->destport;
|
|
if (frame_label != NULL)
|
|
new_gai->frame_label = g_strdup(frame_label);
|
|
else
|
|
new_gai->frame_label = g_strdup("");
|
|
|
|
if (comment != NULL)
|
|
new_gai->comment = g_strdup(comment);
|
|
else
|
|
new_gai->comment = g_strdup("");
|
|
new_gai->conv_num=call_num;
|
|
new_gai->line_style=line_style;
|
|
new_gai->display=FALSE;
|
|
|
|
item_num = 0;
|
|
inserted = FALSE;
|
|
list = g_list_first(tapinfo->graph_analysis->list);
|
|
while (list)
|
|
{
|
|
gai = list->data;
|
|
if (gai->frame_num > frame_num){
|
|
the_tapinfo_struct.graph_analysis->list = g_list_insert(the_tapinfo_struct.graph_analysis->list, new_gai, item_num);
|
|
inserted = TRUE;
|
|
break;
|
|
}
|
|
list = g_list_next (list);
|
|
item_num++;
|
|
}
|
|
|
|
if ( !inserted) tapinfo->graph_analysis->list = g_list_append(tapinfo->graph_analysis->list, new_gai);
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for RTP Events*****************************/
|
|
/****************************************************************************/
|
|
|
|
static guint32 rtp_evt_frame_num = 0;
|
|
static guint8 rtp_evt = 0;
|
|
static gboolean rtp_evt_end = FALSE;
|
|
/*static guint32 rtp_evt_setup_frame_num = 0;*/
|
|
|
|
/****************************************************************************/
|
|
/* whenever a rtp event packet is seen by the tap listener */
|
|
static int
|
|
rtp_event_packet(void *ptr _U_, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *rtp_event_info)
|
|
{
|
|
const struct _rtp_event_info *pi = rtp_event_info;
|
|
|
|
/* do not consider RTP events packets without a setup frame */
|
|
if (pi->info_setup_frame_num == 0){
|
|
return 0;
|
|
}
|
|
|
|
rtp_evt_frame_num = pinfo->fd->num;
|
|
rtp_evt = pi->info_rtp_evt;
|
|
rtp_evt_end = pi->info_end;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
static gboolean have_rtp_event_tap_listener=FALSE;
|
|
|
|
void
|
|
rtp_event_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
|
|
if(have_rtp_event_tap_listener==FALSE)
|
|
{
|
|
error_string = register_tap_listener("rtpevent", &(the_tapinfo_rtp_struct.rtp_event_dummy),
|
|
NULL,
|
|
NULL,
|
|
rtp_event_packet,
|
|
NULL
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_rtp_event_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
void
|
|
remove_tap_listener_rtp_event(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_rtp_struct.rtp_event_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_rtp_event_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for RTP **********************************/
|
|
/****************************************************************************/
|
|
|
|
/****************************************************************************/
|
|
/* when there is a [re]reading of RTP packet's */
|
|
static void voip_rtp_reset(void *ptr _U_)
|
|
{
|
|
voip_rtp_tapinfo_t *tapinfo = &the_tapinfo_rtp_struct;
|
|
GList* list;
|
|
/* free the data items first */
|
|
list = g_list_first(tapinfo->list);
|
|
while (list)
|
|
{
|
|
g_free(list->data);
|
|
list = g_list_next(list);
|
|
}
|
|
g_list_free(tapinfo->list);
|
|
tapinfo->list = NULL;
|
|
tapinfo->nstreams = 0;
|
|
return;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* whenever a RTP packet is seen by the tap listener */
|
|
static int
|
|
RTP_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *RTPinfo)
|
|
{
|
|
voip_rtp_tapinfo_t *tapinfo = &the_tapinfo_rtp_struct;
|
|
voip_rtp_stream_info_t *tmp_listinfo;
|
|
voip_rtp_stream_info_t *strinfo = NULL;
|
|
GList* list;
|
|
struct _rtp_conversation_info *p_conv_data = NULL;
|
|
|
|
const struct _rtp_info *pi = RTPinfo;
|
|
|
|
/* do not consider RTP packets without a setup frame */
|
|
if (pi->info_setup_frame_num == 0){
|
|
return 0;
|
|
}
|
|
|
|
/* check wether we already have a RTP stream with this setup frame and ssrc in the list */
|
|
list = g_list_first(tapinfo->list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if ( (tmp_listinfo->setup_frame_number == pi->info_setup_frame_num)
|
|
&& (tmp_listinfo->ssrc == pi->info_sync_src) && (tmp_listinfo->end_stream == FALSE)){
|
|
/* if the payload type has changed, we mark the stream as finished to create a new one
|
|
this is to show multiple payload changes in the Graph for example for DTMF RFC2833 */
|
|
if ( tmp_listinfo->pt != pi->info_payload_type ) {
|
|
tmp_listinfo->end_stream = TRUE;
|
|
} else {
|
|
strinfo = (voip_rtp_stream_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* if this is a duplicated RTP Event End, just return */
|
|
if ((rtp_evt_frame_num == pinfo->fd->num) && !strinfo && (rtp_evt_end == TRUE)) {
|
|
return 0;
|
|
}
|
|
|
|
/* not in the list? then create a new entry */
|
|
if (strinfo==NULL){
|
|
strinfo = g_malloc(sizeof(voip_rtp_stream_info_t));
|
|
COPY_ADDRESS(&(strinfo->src_addr), &(pinfo->src));
|
|
strinfo->src_port = pinfo->srcport;
|
|
COPY_ADDRESS(&(strinfo->dest_addr), &(pinfo->dst));
|
|
strinfo->dest_port = pinfo->destport;
|
|
strinfo->ssrc = pi->info_sync_src;
|
|
strinfo->end_stream = FALSE;
|
|
strinfo->pt = pi->info_payload_type;
|
|
strinfo->pt_str = NULL;
|
|
/* if it is dynamic payload, let use the conv data to see if it is defined */
|
|
if ( (strinfo->pt>95) && (strinfo->pt<128) ) {
|
|
/* Use existing packet info if available */
|
|
p_conv_data = p_get_proto_data(pinfo->fd, proto_get_id_by_filter_name("rtp"));
|
|
if (p_conv_data)
|
|
strinfo->pt_str = g_strdup(g_hash_table_lookup(p_conv_data->rtp_dyn_payload, &strinfo->pt));
|
|
}
|
|
if (!strinfo->pt_str) strinfo->pt_str = g_strdup(val_to_str(strinfo->pt, rtp_payload_type_short_vals, "%u"));
|
|
strinfo->npackets = 0;
|
|
strinfo->first_frame_num = pinfo->fd->num;
|
|
strinfo->start_rel_sec = pinfo->fd->rel_ts.secs;
|
|
strinfo->start_rel_usec = pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->setup_frame_number = pi->info_setup_frame_num;
|
|
strinfo->rtp_event = -1;
|
|
tapinfo->list = g_list_append(tapinfo->list, strinfo);
|
|
}
|
|
|
|
if (strinfo!=NULL){
|
|
/* Add the info to the existing RTP stream */
|
|
strinfo->npackets++;
|
|
strinfo->stop_rel_sec = pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_rel_usec = pinfo->fd->rel_ts.nsecs/1000;
|
|
|
|
/* process RTP Event */
|
|
if (rtp_evt_frame_num == pinfo->fd->num) {
|
|
strinfo->rtp_event = rtp_evt;
|
|
if (rtp_evt_end == TRUE) {
|
|
strinfo->end_stream = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
the_tapinfo_struct.redraw = TRUE;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* whenever a redraw in the RTP tap listener */
|
|
static void RTP_packet_draw(void *prs _U_)
|
|
{
|
|
voip_rtp_tapinfo_t *rtp_tapinfo = &the_tapinfo_rtp_struct;
|
|
GList* rtp_streams_list;
|
|
voip_rtp_stream_info_t *rtp_listinfo;
|
|
GList* voip_calls_graph_list;
|
|
guint item;
|
|
graph_analysis_item_t *gai;
|
|
graph_analysis_item_t *new_gai;
|
|
guint16 conv_num;
|
|
guint32 duration;
|
|
|
|
/* add each rtp stream to the graph */
|
|
rtp_streams_list = g_list_first(rtp_tapinfo->list);
|
|
while (rtp_streams_list)
|
|
{
|
|
rtp_listinfo = rtp_streams_list->data;
|
|
|
|
/* using the setup frame number of the RTP stream, we get the call number that it belongs */
|
|
voip_calls_graph_list = g_list_first(the_tapinfo_struct.graph_analysis->list);
|
|
while (voip_calls_graph_list)
|
|
{
|
|
gai = voip_calls_graph_list->data;
|
|
conv_num = gai->conv_num;
|
|
/* if we get the setup frame number, then get the time position to graph the RTP arrow */
|
|
if (rtp_listinfo->setup_frame_number == gai->frame_num){
|
|
/* look again from the begining because there are cases where the Setup frame is after the RTP */
|
|
voip_calls_graph_list = g_list_first(the_tapinfo_struct.graph_analysis->list);
|
|
item = 0;
|
|
while(voip_calls_graph_list){
|
|
gai = voip_calls_graph_list->data;
|
|
/* if RTP was already in the Graph, just update the comment information */
|
|
if (rtp_listinfo->first_frame_num == gai->frame_num){
|
|
duration = (rtp_listinfo->stop_rel_sec*1000000 + rtp_listinfo->stop_rel_usec) - (rtp_listinfo->start_rel_sec*1000000 + rtp_listinfo->start_rel_usec);
|
|
g_free(gai->comment);
|
|
gai->comment = g_strdup_printf("RTP Num packets:%d Duration:%d.%03ds ssrc:%d", rtp_listinfo->npackets, duration/1000000,(duration%1000000)/1000, rtp_listinfo->ssrc);
|
|
break;
|
|
/* add the RTP item to the graph if was not there*/
|
|
} else if (rtp_listinfo->first_frame_num<gai->frame_num){
|
|
new_gai = g_malloc(sizeof(graph_analysis_item_t));
|
|
new_gai->frame_num = rtp_listinfo->first_frame_num;
|
|
new_gai->time = (double)rtp_listinfo->start_rel_sec + (double)rtp_listinfo->start_rel_usec/1000000;
|
|
COPY_ADDRESS(&(new_gai->src_addr),&(rtp_listinfo->src_addr));
|
|
COPY_ADDRESS(&(new_gai->dst_addr),&(rtp_listinfo->dest_addr));
|
|
new_gai->port_src = rtp_listinfo->src_port;
|
|
new_gai->port_dst = rtp_listinfo->dest_port;
|
|
duration = (rtp_listinfo->stop_rel_sec*1000000 + rtp_listinfo->stop_rel_usec) - (rtp_listinfo->start_rel_sec*1000000 + rtp_listinfo->start_rel_usec);
|
|
new_gai->frame_label = g_strdup_printf("RTP (%s) %s", rtp_listinfo->pt_str, (rtp_listinfo->rtp_event == -1)?"":val_to_str(rtp_listinfo->rtp_event, rtp_event_type_values, "Uknown RTP Event"));
|
|
g_free(rtp_listinfo->pt_str);
|
|
new_gai->comment = g_strdup_printf("RTP Num packets:%d Duration:%d.%03ds ssrc:%d", rtp_listinfo->npackets, duration/1000000,(duration%1000000)/1000, rtp_listinfo->ssrc);
|
|
new_gai->conv_num = conv_num;
|
|
new_gai->display=FALSE;
|
|
new_gai->line_style = 2; /* the arrow line will be 2 pixels width */
|
|
the_tapinfo_struct.graph_analysis->list = g_list_insert(the_tapinfo_struct.graph_analysis->list, new_gai, item);
|
|
break;
|
|
}
|
|
|
|
voip_calls_graph_list = g_list_next(voip_calls_graph_list);
|
|
item++;
|
|
}
|
|
break;
|
|
}
|
|
voip_calls_graph_list = g_list_next(voip_calls_graph_list);
|
|
}
|
|
rtp_streams_list = g_list_next(rtp_streams_list);
|
|
}
|
|
}
|
|
|
|
static gboolean have_RTP_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
rtp_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_RTP_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("rtp", &(the_tapinfo_rtp_struct.rtp_dummy), NULL,
|
|
voip_rtp_reset,
|
|
RTP_packet,
|
|
RTP_packet_draw
|
|
);
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_RTP_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_rtp(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_rtp_struct.rtp_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_RTP_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/******************************TAP for T38 **********************************/
|
|
/****************************************************************************/
|
|
|
|
/****************************************************************************/
|
|
/* whenever a T38 packet is seen by the tap listener */
|
|
static int
|
|
T38_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *T38info)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
|
|
voip_calls_info_t *strinfo = NULL;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
GList* voip_calls_graph_list;
|
|
GList* list;
|
|
gchar *frame_label = NULL;
|
|
gchar *comment = NULL;
|
|
graph_analysis_item_t *tmp_gai, *gai = NULL;
|
|
guint16 line_style = 2;
|
|
double duration;
|
|
int conv_num = -1;
|
|
|
|
const t38_packet_info *pi = T38info;
|
|
|
|
if (pi->setup_frame_number != 0) {
|
|
/* using the setup frame number of the T38 packet, we get the call number that it belongs */
|
|
voip_calls_graph_list = g_list_first(tapinfo->graph_analysis->list);
|
|
while (voip_calls_graph_list)
|
|
{
|
|
tmp_gai = voip_calls_graph_list->data;
|
|
if (pi->setup_frame_number == tmp_gai->frame_num){
|
|
gai = tmp_gai;
|
|
break;
|
|
}
|
|
voip_calls_graph_list = g_list_next(voip_calls_graph_list);
|
|
}
|
|
if (gai) conv_num = (int) gai->conv_num;
|
|
}
|
|
|
|
/* if setup_frame_number in the t38 packet is 0, it means it was not set using an SDP or H245 sesion, which means we don't
|
|
* have the associated Voip calls. It probably means the the packet was decoded using the deafult t38 port, or using "Decode as.."
|
|
* in this case we create a "voip" call that only have t38 media (no signaling)
|
|
* OR if we have not found the Setup message in the graph.
|
|
*/
|
|
if ( (pi->setup_frame_number == 0) || (gai == NULL) ){
|
|
/* check wether we already have a call with these parameters in the list */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == MEDIA_T38){
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* not in the list? then create a new entry */
|
|
if (strinfo==NULL){
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_UNKNOWN;
|
|
strinfo->from_identity=g_strdup("T38 Media only");
|
|
strinfo->to_identity=g_strdup("T38 Media only");
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),&(pinfo->src));
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->selected=FALSE;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=MEDIA_T38;
|
|
strinfo->prot_info=NULL;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
conv_num = (int) strinfo->call_num;
|
|
}
|
|
|
|
/* at this point we should have found the call num for this t38 packets belong */
|
|
if (conv_num == -1) {
|
|
return 0;
|
|
}
|
|
|
|
/* add the item to the graph list */
|
|
if (pi->type_msg == 0) { /* 0=t30-indicator */
|
|
frame_label = g_strdup(val_to_str(pi->t30ind_value, t30_indicator_vals, "Ukn (0x%02X)") );
|
|
comment = g_strdup_printf("t38:t30 Ind:%s",val_to_str(pi->t30ind_value, t30_indicator_vals, "Ukn (0x%02X)") );
|
|
line_style = 1;
|
|
} else if (pi->type_msg == 1) { /* 1=data */
|
|
switch(pi->Data_Field_field_type_value){
|
|
case 0: /* hdlc-data */
|
|
break;
|
|
case 2: /* hdlc-fcs-OK */
|
|
case 4: /* hdlc-fcs-OK-sig-end */
|
|
frame_label = g_strdup_printf("%s %s", val_to_str(pi->t30_Facsimile_Control & 0x7F, t30_facsimile_control_field_vals_short, "Ukn (0x%02X)"), pi->desc);
|
|
comment = g_strdup_printf("t38:%s:HDLC:%s",val_to_str(pi->data_value, t30_data_vals, "Ukn (0x%02X)"), val_to_str(pi->t30_Facsimile_Control & 0x7F, t30_facsimile_control_field_vals, "Ukn (0x%02X)"));
|
|
break;
|
|
case 3: /* hdlc-fcs-BAD */
|
|
case 5: /* hdlc-fcs-BAD-sig-end */
|
|
frame_label = g_strdup(pi->Data_Field_field_type_value == 3 ? "fcs-BAD" : "fcs-BAD-sig-end");
|
|
comment = g_strdup_printf("WARNING: received t38:%s:HDLC:%s", val_to_str(pi->data_value, t30_data_vals, "Ukn (0x%02X)"), pi->Data_Field_field_type_value == 3 ? "fcs-BAD" : "fcs-BAD-sig-end");
|
|
break;
|
|
case 7: /* t4-non-ecm-sig-end */
|
|
duration = nstime_to_sec(&pinfo->fd->rel_ts) - pi->time_first_t4_data;
|
|
frame_label = g_strdup_printf("t4-non-ecm-data:%s",val_to_str(pi->data_value, t30_data_vals, "Ukn (0x%02X)") );
|
|
comment = g_strdup_printf("t38:t4-non-ecm-data:%s Duration: %.2fs %s",val_to_str(pi->data_value, t30_data_vals, "Ukn (0x%02X)"), duration, pi->desc_comment );
|
|
insert_to_graph(tapinfo, pinfo, frame_label, comment, (guint16)conv_num, &(pinfo->src), &(pinfo->dst), line_style, pi->time_first_t4_data, pi->frame_num_first_t4_data);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (frame_label && !(pi->Data_Field_field_type_value == 7 && pi->type_msg == 1)) {
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, (guint16)conv_num, &(pinfo->src), &(pinfo->dst), line_style);
|
|
}
|
|
|
|
g_free(comment);
|
|
g_free(frame_label);
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
static gboolean have_T38_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
t38_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_T38_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("t38", &(the_tapinfo_struct.t38_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
T38_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_T38_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_t38(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.t38_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_T38_tap_listener=FALSE;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
static gchar *sdp_summary = NULL;
|
|
static guint32 sdp_frame_num = 0;
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for SIP **********************************/
|
|
/****************************************************************************/
|
|
|
|
/****************************************************************************/
|
|
/* whenever a SIP packet is seen by the tap listener */
|
|
static int
|
|
SIPcalls_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *SIPinfo)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
/* we just take note of the ISUP data here; when we receive the MTP3 part everything will
|
|
be compared with existing calls */
|
|
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
sip_calls_info_t *tmp_sipinfo = NULL;
|
|
GList* list;
|
|
address tmp_src, tmp_dst;
|
|
gchar *frame_label = NULL;
|
|
gchar *comment = NULL;
|
|
|
|
const sip_info_value_t *pi = SIPinfo;
|
|
|
|
/* do not consider packets without call_id */
|
|
if (pi->tap_call_id ==NULL){
|
|
return 0;
|
|
}
|
|
|
|
/* check wether we already have a call with these parameters in the list */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_SIP){
|
|
tmp_sipinfo = tmp_listinfo->prot_info;
|
|
if (strcmp(tmp_sipinfo->call_identifier,pi->tap_call_id)==0){
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* not in the list? then create a new entry if the message is INVITE -i.e. if this session is a call*/
|
|
if ((strinfo==NULL) &&(pi->request_method!=NULL)){
|
|
if (strcmp(pi->request_method,"INVITE")==0){
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_CALL_SETUP;
|
|
strinfo->from_identity=g_strdup(pi->tap_from_addr);
|
|
strinfo->to_identity=g_strdup(pi->tap_to_addr);
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),&(pinfo->src));
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->selected=FALSE;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_SIP;
|
|
strinfo->prot_info=g_malloc(sizeof(sip_calls_info_t));
|
|
tmp_sipinfo=strinfo->prot_info;
|
|
tmp_sipinfo->call_identifier=strdup(pi->tap_call_id);
|
|
tmp_sipinfo->sip_state=SIP_INVITE_SENT;
|
|
tmp_sipinfo->invite_cseq=pi->tap_cseq_number;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
}
|
|
|
|
if (strinfo!=NULL){
|
|
|
|
/* let's analyze the call state */
|
|
|
|
COPY_ADDRESS(&(tmp_src), &(pinfo->src));
|
|
COPY_ADDRESS(&(tmp_dst), &(pinfo->dst));
|
|
|
|
if (pi->request_method == NULL){
|
|
frame_label = g_strdup_printf("%d %s", pi->response_code, pi->reason_phrase );
|
|
comment = g_strdup_printf("SIP Status");
|
|
|
|
if ((tmp_sipinfo && pi->tap_cseq_number == tmp_sipinfo->invite_cseq)&&(ADDRESSES_EQUAL(&tmp_dst,&(strinfo->initial_speaker)))){
|
|
if ((pi->response_code > 199) && (pi->response_code<300) && (tmp_sipinfo->sip_state == SIP_INVITE_SENT)){
|
|
tmp_sipinfo->sip_state = SIP_200_REC;
|
|
}
|
|
else if ((pi->response_code>299)&&(tmp_sipinfo->sip_state == SIP_INVITE_SENT)){
|
|
strinfo->call_state = VOIP_REJECTED;
|
|
tapinfo->rejected_calls++;
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
frame_label = g_strdup(pi->request_method);
|
|
|
|
if ((strcmp(pi->request_method,"INVITE")==0)&&(ADDRESSES_EQUAL(&tmp_src,&(strinfo->initial_speaker)))){
|
|
tmp_sipinfo->invite_cseq = pi->tap_cseq_number;
|
|
strinfo->call_state = VOIP_CALL_SETUP;
|
|
comment = g_strdup_printf("SIP From: %s To:%s", strinfo->from_identity, strinfo->to_identity);
|
|
}
|
|
else if ((strcmp(pi->request_method,"ACK")==0)&&(pi->tap_cseq_number == tmp_sipinfo->invite_cseq)
|
|
&&(ADDRESSES_EQUAL(&tmp_src,&(strinfo->initial_speaker)))&&(tmp_sipinfo->sip_state==SIP_200_REC)
|
|
&&(strinfo->call_state == VOIP_CALL_SETUP)){
|
|
strinfo->call_state = VOIP_IN_CALL;
|
|
comment = g_strdup_printf("SIP Request");
|
|
}
|
|
else if (strcmp(pi->request_method,"BYE")==0){
|
|
strinfo->call_state = VOIP_COMPLETED;
|
|
tapinfo->completed_calls++;
|
|
comment = g_strdup_printf("SIP Request");
|
|
}
|
|
else if ((strcmp(pi->request_method,"CANCEL")==0)&&(pi->tap_cseq_number == tmp_sipinfo->invite_cseq)
|
|
&&(ADDRESSES_EQUAL(&tmp_src,&(strinfo->initial_speaker)))&&(strinfo->call_state==VOIP_CALL_SETUP)){
|
|
strinfo->call_state = VOIP_CANCELLED;
|
|
tmp_sipinfo->sip_state = SIP_CANCEL_SENT;
|
|
comment = g_strdup_printf("SIP Request");
|
|
} else {
|
|
comment = g_strdup_printf("SIP Request");
|
|
}
|
|
}
|
|
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
/* add to the graph */
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, strinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
g_free(comment);
|
|
g_free(frame_label);
|
|
g_free((void *)tmp_src.data);
|
|
g_free((void *)tmp_dst.data);
|
|
|
|
/* add SDP info if apply */
|
|
if ( (sdp_summary != NULL) && (sdp_frame_num == pinfo->fd->num) ){
|
|
append_to_frame_graph(tapinfo, pinfo->fd->num, sdp_summary, NULL);
|
|
g_free(sdp_summary);
|
|
sdp_summary = NULL;
|
|
}
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
voip_calls_tapinfo_t* voip_calls_get_info(void)
|
|
{
|
|
return &the_tapinfo_struct;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_SIP_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
sip_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_SIP_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("sip", &(the_tapinfo_struct.sip_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
SIPcalls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_SIP_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_sip_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.sip_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_SIP_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for ISUP **********************************/
|
|
/****************************************************************************/
|
|
|
|
static guint32 mtp3_opc, mtp3_dpc;
|
|
static guint8 mtp3_ni;
|
|
static guint32 mtp3_frame_num;
|
|
|
|
|
|
/****************************************************************************/
|
|
/* whenever a isup_ packet is seen by the tap listener */
|
|
static int
|
|
isup_calls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *isup_info _U_)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
isup_calls_info_t *tmp_isupinfo;
|
|
gboolean found = FALSE;
|
|
gboolean forward = FALSE;
|
|
gboolean right_pair;
|
|
GList* list;
|
|
gchar *frame_label = NULL;
|
|
gchar *comment = NULL;
|
|
int i;
|
|
|
|
/*voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct; unused */
|
|
const isup_tap_rec_t *pi = isup_info;
|
|
|
|
|
|
/* check if the lower layer is MTP matching the frame number */
|
|
if (mtp3_frame_num != pinfo->fd->num) return 0;
|
|
|
|
/* check wether we already have a call with these parameters in the list */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
right_pair = TRUE;
|
|
tmp_listinfo=list->data;
|
|
if ((tmp_listinfo->protocol == VOIP_ISUP)&&(tmp_listinfo->call_active_state==VOIP_ACTIVE)){
|
|
tmp_isupinfo = tmp_listinfo->prot_info;
|
|
if ((tmp_isupinfo->cic == pinfo->circuit_id)&&(tmp_isupinfo->ni == mtp3_ni)) {
|
|
if ((tmp_isupinfo->opc == mtp3_opc)&&(tmp_isupinfo->dpc == mtp3_dpc)){
|
|
forward = TRUE;
|
|
}
|
|
else if ((tmp_isupinfo->dpc == mtp3_opc)&&(tmp_isupinfo->opc == mtp3_dpc)){
|
|
forward = FALSE;
|
|
}
|
|
else{
|
|
right_pair = FALSE;
|
|
}
|
|
if (right_pair){
|
|
/* if there is an IAM for a call that is not in setup state, that means the previous call in the same
|
|
cic is no longer active */
|
|
if (tmp_listinfo->call_state == VOIP_CALL_SETUP){
|
|
found = TRUE;
|
|
}
|
|
else if (pi->message_type != 1){
|
|
found = TRUE;
|
|
}
|
|
else{
|
|
tmp_listinfo->call_active_state=VOIP_INACTIVE;
|
|
}
|
|
}
|
|
if (found){
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* not in the list? then create a new entry if the message is IAM
|
|
-i.e. if this session is a call*/
|
|
|
|
|
|
if ((strinfo==NULL) &&(pi->message_type==1)){
|
|
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_UNKNOWN;
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),&(pinfo->src));
|
|
strinfo->selected=FALSE;
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_ISUP;
|
|
if (pi->calling_number!=NULL){
|
|
strinfo->from_identity=g_strdup(pi->calling_number);
|
|
}
|
|
if (pi->called_number!=NULL){
|
|
strinfo->to_identity=g_strdup(pi->called_number);
|
|
}
|
|
strinfo->prot_info=g_malloc(sizeof(isup_calls_info_t));
|
|
tmp_isupinfo=strinfo->prot_info;
|
|
tmp_isupinfo->opc = mtp3_opc;
|
|
tmp_isupinfo->dpc = mtp3_dpc;
|
|
tmp_isupinfo->ni = mtp3_ni;
|
|
tmp_isupinfo->cic = pinfo->circuit_id;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
|
|
if (strinfo!=NULL){
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
|
|
/* Let's analyze the call state */
|
|
|
|
|
|
for (i=0;(isup_message_type_value[i].strptr!=NULL)&& (isup_message_type_value[i].value!=pi->message_type);i++);
|
|
|
|
if (isup_message_type_value[i].value==pi->message_type){
|
|
frame_label = g_strdup(isup_message_type_value_acro[i].strptr);
|
|
}
|
|
else{
|
|
frame_label = g_strdup_printf("Unknown");
|
|
}
|
|
|
|
if (strinfo->npackets == 1){ /* this is the first packet, that must be an IAM */
|
|
if ((pi->calling_number!=NULL)&&(pi->called_number !=NULL)){
|
|
comment = g_strdup_printf("Call from %s to %s",
|
|
pi->calling_number, pi->called_number);
|
|
}
|
|
}
|
|
else if (strinfo->npackets == 2){ /* in the second packet we show the SPs */
|
|
if (forward){
|
|
comment = g_strdup_printf("%i-%i -> %i-%i. Cic:%i",
|
|
mtp3_ni, mtp3_opc,
|
|
mtp3_ni, mtp3_dpc, pinfo->circuit_id);
|
|
|
|
}
|
|
else{
|
|
comment = g_strdup_printf("%i-%i -> %i-%i. Cic:%i",
|
|
mtp3_ni, mtp3_dpc,
|
|
mtp3_ni, mtp3_opc, pinfo->circuit_id);
|
|
|
|
}
|
|
}
|
|
|
|
switch(pi->message_type){
|
|
case 1: /* IAM */
|
|
strinfo->call_state=VOIP_CALL_SETUP;
|
|
break;
|
|
case 7: /* CONNECT */
|
|
case 9: /* ANSWER */
|
|
strinfo->call_state=VOIP_IN_CALL;
|
|
break;
|
|
case 12: /* RELEASE */
|
|
if (strinfo->call_state==VOIP_CALL_SETUP){
|
|
if (forward){
|
|
strinfo->call_state=VOIP_CANCELLED;
|
|
}
|
|
else{
|
|
strinfo->call_state=VOIP_REJECTED;
|
|
tapinfo->rejected_calls++;
|
|
}
|
|
}
|
|
else if (strinfo->call_state == VOIP_IN_CALL){
|
|
strinfo->call_state = VOIP_COMPLETED;
|
|
tapinfo->completed_calls++;
|
|
}
|
|
for (i=0;(q931_cause_code_vals[i].strptr!=NULL)&& (q931_cause_code_vals[i].value!=pi->cause_value);i++);
|
|
if (q931_cause_code_vals[i].value==pi->cause_value){
|
|
comment = g_strdup_printf("Cause %i - %s",pi->cause_value, q931_cause_code_vals[i].strptr);
|
|
}
|
|
else{
|
|
comment = g_strdup_printf("Cause %i",pi->cause_value);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
/* add to the graph */
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, strinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
g_free(comment);
|
|
g_free(frame_label);
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
static gboolean have_isup_tap_listener=FALSE;
|
|
|
|
void
|
|
isup_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
|
|
if(have_isup_tap_listener==FALSE)
|
|
{
|
|
error_string = register_tap_listener("isup", &(the_tapinfo_struct.isup_dummy),
|
|
NULL,
|
|
voip_calls_dlg_reset,
|
|
isup_calls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_isup_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
void
|
|
remove_tap_listener_isup_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.isup_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_isup_tap_listener=FALSE;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for MTP3 **********************************/
|
|
/****************************************************************************/
|
|
|
|
|
|
/****************************************************************************/
|
|
/* whenever a mtp3_ packet is seen by the tap listener */
|
|
static int
|
|
mtp3_calls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *mtp3_info _U_)
|
|
{
|
|
const mtp3_tap_rec_t *pi = mtp3_info;
|
|
|
|
/* keep the data in memory to use when the ISUP information arrives */
|
|
|
|
mtp3_opc = pi->addr_opc.pc;
|
|
mtp3_dpc = pi->addr_dpc.pc;
|
|
mtp3_ni = pi->addr_opc.ni;
|
|
mtp3_frame_num = pinfo->fd->num;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
static gboolean have_mtp3_tap_listener=FALSE;
|
|
|
|
void
|
|
mtp3_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
|
|
if(have_mtp3_tap_listener==FALSE)
|
|
{
|
|
error_string = register_tap_listener("mtp3", &(the_tapinfo_struct.mtp3_dummy),
|
|
NULL,
|
|
voip_calls_dlg_reset,
|
|
mtp3_calls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_mtp3_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
void
|
|
remove_tap_listener_mtp3_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.mtp3_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_mtp3_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for Q931 **********************************/
|
|
/****************************************************************************/
|
|
void h245_add_to_graph(guint32 new_frame_num);
|
|
static const e_guid_t guid_allzero = {0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0 } };
|
|
/* defines specific H323 data */
|
|
|
|
static gchar *q931_calling_number;
|
|
static gchar *q931_called_number;
|
|
static guint8 q931_cause_value;
|
|
static gint32 q931_crv;
|
|
static guint32 q931_frame_num;
|
|
|
|
static guint32 h225_frame_num = 0;
|
|
static guint16 h225_call_num = 0;
|
|
static h225_cs_type h225_cstype = H225_OTHER;
|
|
static gboolean h225_is_faststart;
|
|
|
|
static guint32 actrace_frame_num = 0;
|
|
static gint32 actrace_trunk = 0;
|
|
static gint32 actrace_direction = 0;
|
|
|
|
|
|
/****************************************************************************/
|
|
/* whenever a q931_ packet is seen by the tap listener */
|
|
static int
|
|
q931_calls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *q931_info _U_)
|
|
{
|
|
GList *list,*list2;
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
h323_calls_info_t *tmp_h323info,*tmp2_h323info;
|
|
actrace_isdn_calls_info_t *tmp_actrace_isdn_info;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
h245_address_t *h245_add = NULL;
|
|
gchar *comment;
|
|
|
|
const q931_packet_info *pi = q931_info;
|
|
|
|
/* free previously allocated q931_calling/ed_number */
|
|
g_free(q931_calling_number);
|
|
g_free(q931_called_number);
|
|
|
|
if (pi->calling_number!=NULL)
|
|
q931_calling_number = g_strdup(pi->calling_number);
|
|
else
|
|
q931_calling_number = g_strdup("");
|
|
|
|
if (pi->called_number!=NULL)
|
|
q931_called_number = g_strdup(pi->called_number);
|
|
else
|
|
q931_called_number = g_strdup("");
|
|
q931_cause_value = pi->cause_value;
|
|
q931_frame_num = pinfo->fd->num;
|
|
q931_crv = pi->crv;
|
|
|
|
|
|
/* add staff to H323 calls */
|
|
if (h225_frame_num == q931_frame_num) {
|
|
tmp_h323info = NULL;
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if ( (tmp_listinfo->protocol == VOIP_H323) && (tmp_listinfo->call_num == h225_call_num) ){
|
|
tmp_h323info = tmp_listinfo->prot_info;
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
|
|
/* Add the CRV to the h323 call */
|
|
if (tmp_h323info->q931_crv == -1) {
|
|
tmp_h323info->q931_crv = q931_crv;
|
|
} else if (tmp_h323info->q931_crv != q931_crv) {
|
|
tmp_h323info->q931_crv2 = q931_crv;
|
|
}
|
|
break;
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
if (strinfo != NULL) {
|
|
comment = NULL;
|
|
if (h225_cstype == H225_SETUP) {
|
|
/* set te calling and called number from the Q931 packet */
|
|
if (q931_calling_number != NULL){
|
|
g_free(strinfo->from_identity);
|
|
strinfo->from_identity=g_strdup(q931_calling_number);
|
|
}
|
|
if (q931_called_number != NULL){
|
|
g_free(strinfo->to_identity);
|
|
strinfo->to_identity=g_strdup(q931_called_number);
|
|
}
|
|
|
|
/* check if there is an LRQ/LCF that match this Setup */
|
|
/* TODO: we are just checking the DialedNumer in LRQ/LCF agains the Setup
|
|
we should also check if the h225 signaling IP and port match the destination
|
|
Setup ip and port */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_H323){
|
|
tmp2_h323info = tmp_listinfo->prot_info;
|
|
|
|
/* check if the called number match a LRQ/LCF */
|
|
if ( (strcmp(strinfo->to_identity, tmp_listinfo->to_identity)==0)
|
|
&& (memcmp(&tmp2_h323info->guid, &guid_allzero, GUID_LEN) == 0) ){
|
|
/* change the call graph to the LRQ/LCF to belong to this call */
|
|
strinfo->npackets += change_call_num_graph(tapinfo, tmp_listinfo->call_num, strinfo->call_num);
|
|
|
|
/* remove this LRQ/LCF call entry because we have found the Setup that match them */
|
|
g_free(tmp_listinfo->from_identity);
|
|
g_free(tmp_listinfo->to_identity);
|
|
g_free(tmp2_h323info->guid);
|
|
|
|
list2 = g_list_first(tmp2_h323info->h245_list);
|
|
while (list2)
|
|
{
|
|
h245_add=list2->data;
|
|
g_free((void *)h245_add->h245_address.data);
|
|
g_free(list2->data);
|
|
list2 = g_list_next(list2);
|
|
}
|
|
g_list_free(tmp_h323info->h245_list);
|
|
tmp_h323info->h245_list = NULL;
|
|
g_free(tmp_listinfo->prot_info);
|
|
tapinfo->strinfo_list = g_list_remove(tapinfo->strinfo_list, tmp_listinfo);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
comment = g_strdup_printf("H225 From: %s To:%s TunnH245:%s FS:%s", strinfo->from_identity, strinfo->to_identity, (tmp_h323info->is_h245Tunneling==TRUE?"on":"off"),
|
|
(h225_is_faststart==TRUE?"on":"off"));
|
|
} else if (h225_cstype == H225_RELEASE_COMPLET) {
|
|
/* get the Q931 Release cause code */
|
|
if (q931_cause_value != 0xFF){
|
|
comment = g_strdup_printf("H225 Q931 Rel Cause (%i):%s", q931_cause_value, val_to_str(q931_cause_value, q931_cause_code_vals, "<unknown>"));
|
|
} else { /* Cause not set */
|
|
comment = g_strdup("H225 No Q931 Rel Cause");
|
|
}
|
|
}
|
|
/* change the graph comment for this new one */
|
|
if (comment != NULL) {
|
|
change_frame_graph(tapinfo, h225_frame_num, NULL, comment);
|
|
g_free(comment);
|
|
}
|
|
}
|
|
/* we reset the h225_frame_num to 0 because there could be empty h225 in the same frame
|
|
as non empty h225 (e.g connect), so we don't have to be here twice */
|
|
h225_frame_num = 0;
|
|
|
|
/* add staff to H245 */
|
|
} else if (h245_labels.frame_num == q931_frame_num) {
|
|
/* there are empty H225 frames that don't have guid (guaid=0) but they have h245 info,
|
|
so the only way to match those frames is with the Q931 CRV number */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_H323){
|
|
tmp_h323info = tmp_listinfo->prot_info;
|
|
if ( ((tmp_h323info->q931_crv == q931_crv) || (tmp_h323info->q931_crv2 == q931_crv)) && (q931_crv!=-1)){
|
|
|
|
comment = g_strdup("");
|
|
|
|
/* if the frame number exists in graph, append to it*/
|
|
if (!append_to_frame_graph(tapinfo, q931_frame_num, "", comment)) {
|
|
/* if not exist, add to the graph */
|
|
add_to_graph(tapinfo, pinfo, "", comment, tmp_listinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
++(tmp_listinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
}
|
|
|
|
/* Add the H245 info if exists to the Graph */
|
|
h245_add_to_graph(pinfo->fd->num);
|
|
g_free(comment);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* add staff to ACTRACE */
|
|
} else if (actrace_frame_num == q931_frame_num) {
|
|
address pstn_add;
|
|
gchar *comment = NULL;
|
|
|
|
strinfo = NULL;
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if ( tmp_listinfo->protocol == VOIP_AC_ISDN ){
|
|
tmp_actrace_isdn_info = tmp_listinfo->prot_info;
|
|
/* TODO: Also check the IP of the Blade, and if the call is complete (no active) */
|
|
if ( (tmp_actrace_isdn_info->crv == q931_crv) && (tmp_actrace_isdn_info->trunk == actrace_trunk) ) {
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
SET_ADDRESS(&pstn_add, AT_STRINGZ, 5, g_strdup("PSTN"));
|
|
|
|
/* if it is a new call, add it to the list */
|
|
if (!strinfo) {
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_CALL_SETUP;
|
|
strinfo->from_identity=g_strdup(q931_calling_number);
|
|
strinfo->to_identity=g_strdup(q931_called_number);
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),actrace_direction?&pstn_add:&(pinfo->src));
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->selected=FALSE;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_AC_ISDN;
|
|
strinfo->prot_info=g_malloc(sizeof(actrace_isdn_calls_info_t));
|
|
tmp_actrace_isdn_info=strinfo->prot_info;
|
|
tmp_actrace_isdn_info->crv=q931_crv;
|
|
tmp_actrace_isdn_info->trunk=actrace_trunk;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
switch(pi->message_type){
|
|
case Q931_SETUP:
|
|
comment = g_strdup_printf("AC_ISDN trunk:%u Calling: %s Called:%s", actrace_trunk, q931_calling_number, q931_called_number);
|
|
strinfo->call_state=VOIP_CALL_SETUP;
|
|
break;
|
|
case Q931_CONNECT:
|
|
strinfo->call_state=VOIP_IN_CALL;
|
|
break;
|
|
case Q931_RELEASE_COMPLETE:
|
|
case Q931_RELEASE:
|
|
case Q931_DISCONNECT:
|
|
if (strinfo->call_state==VOIP_CALL_SETUP){
|
|
if (ADDRESSES_EQUAL(&(strinfo->initial_speaker), actrace_direction?&pstn_add:&(pinfo->src) )){ /* forward direction */
|
|
strinfo->call_state=VOIP_CANCELLED;
|
|
}
|
|
else{ /* reverse */
|
|
strinfo->call_state=VOIP_REJECTED;
|
|
tapinfo->rejected_calls++;
|
|
}
|
|
} else if ( (strinfo->call_state!=VOIP_CANCELLED) && (strinfo->call_state!=VOIP_REJECTED) ){
|
|
strinfo->call_state=VOIP_COMPLETED;
|
|
tapinfo->completed_calls++;
|
|
}
|
|
if (q931_cause_value != 0xFF){
|
|
comment = g_strdup_printf("AC_ISDN trunk:%u Q931 Rel Cause (%i):%s", actrace_trunk, q931_cause_value, val_to_str(q931_cause_value, q931_cause_code_vals, "<unknown>"));
|
|
} else { /* Cause not set */
|
|
comment = g_strdup("AC_ISDN No Q931 Rel Cause");
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!comment)
|
|
comment = g_strdup_printf("AC_ISDN trunk:%u", actrace_trunk );
|
|
|
|
add_to_graph(tapinfo, pinfo, val_to_str(pi->message_type, q931_message_type_vals, "<unknown>") , comment, strinfo->call_num,
|
|
actrace_direction?&pstn_add:&(pinfo->src),
|
|
actrace_direction?&(pinfo->src):&pstn_add,
|
|
1 );
|
|
|
|
g_free(comment);
|
|
g_free((char *)pstn_add.data);
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
/****************************************************************************/
|
|
static gboolean have_q931_tap_listener=FALSE;
|
|
|
|
void
|
|
q931_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
|
|
if(have_q931_tap_listener==FALSE)
|
|
{
|
|
error_string = register_tap_listener("q931", &(the_tapinfo_struct.q931_dummy),
|
|
NULL,
|
|
voip_calls_dlg_reset,
|
|
q931_calls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_q931_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
|
|
void
|
|
remove_tap_listener_q931_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.q931_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_q931_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/****************************TAP for H323 ***********************************/
|
|
/****************************************************************************/
|
|
|
|
static void add_h245_Address(h323_calls_info_t *h323info, h245_address_t *h245_address)
|
|
{
|
|
h323info->h245_list = g_list_append(h323info->h245_list, h245_address);
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* whenever a H225 packet is seen by the tap listener */
|
|
static int
|
|
H225calls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *H225info)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
h323_calls_info_t *tmp_h323info = NULL;
|
|
gchar *frame_label;
|
|
gchar *comment;
|
|
GList *list;
|
|
address tmp_src, tmp_dst;
|
|
h245_address_t *h245_add = NULL;
|
|
|
|
const h225_packet_info *pi = H225info;
|
|
|
|
/* if not guid and RAS and not LRQ, LCF or LRJ return because did not belong to a call */
|
|
/* OR, if not guid and is H225 return because doesn't belong to a call */
|
|
if ((memcmp(&pi->guid, &guid_allzero, GUID_LEN) == 0))
|
|
if ( ((pi->msg_type == H225_RAS) && ((pi->msg_tag < 18) || (pi->msg_tag > 20))) || (pi->msg_type != H225_RAS) )
|
|
return 0;
|
|
|
|
/* if it is RAS LCF or LRJ*/
|
|
if ( (pi->msg_type == H225_RAS) && ((pi->msg_tag == 19) || (pi->msg_tag == 20))) {
|
|
/* if the LCF/LRJ doesn't match to a LRQ, just return */
|
|
if (!pi->request_available) return 0;
|
|
|
|
/* check wether we already have a call with this request SeqNum */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_H323){
|
|
tmp_h323info = tmp_listinfo->prot_info;
|
|
if (tmp_h323info->requestSeqNum == pi->requestSeqNum) {
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
} else {
|
|
/* check wether we already have a call with this guid in the list */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_H323){
|
|
tmp_h323info = tmp_listinfo->prot_info;
|
|
if ( (memcmp(&tmp_h323info->guid, &guid_allzero, GUID_LEN) != 0) && (memcmp(&tmp_h323info->guid, &pi->guid,GUID_LEN)==0) ){
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
}
|
|
|
|
h225_cstype = pi->cs_type;
|
|
h225_is_faststart = pi->is_faststart;
|
|
|
|
/* not in the list? then create a new entry */
|
|
if ((strinfo==NULL)){
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_UNKNOWN;
|
|
strinfo->from_identity=g_strdup("");
|
|
strinfo->to_identity=g_strdup("");
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),&(pinfo->src));
|
|
strinfo->selected=FALSE;
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_H323;
|
|
strinfo->prot_info=g_malloc(sizeof(h323_calls_info_t));
|
|
tmp_h323info = strinfo->prot_info;
|
|
tmp_h323info->guid = g_memdup(&pi->guid, sizeof pi->guid);
|
|
tmp_h323info->h225SetupAddr.type = AT_NONE;
|
|
tmp_h323info->h225SetupAddr.len = 0;
|
|
tmp_h323info->h245_list = NULL;
|
|
tmp_h323info->is_faststart_Setup = FALSE;
|
|
tmp_h323info->is_faststart_Proc = FALSE;
|
|
tmp_h323info->is_h245Tunneling = FALSE;
|
|
tmp_h323info->is_h245 = FALSE;
|
|
tmp_h323info->q931_crv = -1;
|
|
tmp_h323info->q931_crv2 = -1;
|
|
tmp_h323info->requestSeqNum = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
strinfo->npackets = 0;
|
|
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
|
|
if (strinfo!=NULL){
|
|
|
|
h225_frame_num = pinfo->fd->num;
|
|
h225_call_num = strinfo->call_num;
|
|
|
|
/* let's analyze the call state */
|
|
|
|
COPY_ADDRESS(&(tmp_src),&(pinfo->src));
|
|
COPY_ADDRESS(&(tmp_dst),&(pinfo->dst));
|
|
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
|
|
/* XXX: it is supposed to be initialized isn't it? */
|
|
g_assert(tmp_h323info != NULL);
|
|
|
|
/* change the status */
|
|
if (pi->msg_type == H225_CS){
|
|
|
|
/* this is still IPv4 only, because the dissector is */
|
|
if (pi->is_h245 == TRUE){
|
|
h245_add = g_malloc(sizeof (h245_address_t));
|
|
h245_add->h245_address.type=AT_IPv4;
|
|
h245_add->h245_address.len=4;
|
|
h245_add->h245_address.data = g_malloc(sizeof(pi->h245_address));
|
|
g_memmove((void *)(h245_add->h245_address.data), &(pi->h245_address), 4);
|
|
h245_add->h245_port = pi->h245_port;
|
|
add_h245_Address(tmp_h323info, h245_add);
|
|
}
|
|
|
|
if (pi->cs_type != H225_RELEASE_COMPLET) tmp_h323info->is_h245Tunneling = pi->is_h245Tunneling;
|
|
|
|
frame_label = g_strdup(pi->frame_label);
|
|
|
|
switch(pi->cs_type){
|
|
case H225_SETUP:
|
|
tmp_h323info->is_faststart_Setup = pi->is_faststart;
|
|
|
|
/* Set the Setup address if it was not set */
|
|
if (tmp_h323info->h225SetupAddr.type == AT_NONE)
|
|
COPY_ADDRESS(&(tmp_h323info->h225SetupAddr), &(pinfo->src));
|
|
strinfo->call_state=VOIP_CALL_SETUP;
|
|
comment = g_strdup_printf("H225 TunnH245:%s FS:%s", (tmp_h323info->is_h245Tunneling==TRUE?"on":"off"),
|
|
(pi->is_faststart==TRUE?"on":"off"));
|
|
break;
|
|
case H225_CONNECT:
|
|
strinfo->call_state=VOIP_IN_CALL;
|
|
if (pi->is_faststart == TRUE) tmp_h323info->is_faststart_Proc = TRUE;
|
|
comment = g_strdup_printf("H225 TunnH245:%s FS:%s", (tmp_h323info->is_h245Tunneling==TRUE?"on":"off"),
|
|
(pi->is_faststart==TRUE?"on":"off"));
|
|
break;
|
|
case H225_RELEASE_COMPLET:
|
|
COPY_ADDRESS(&tmp_src,&(pinfo->src));
|
|
if (strinfo->call_state==VOIP_CALL_SETUP){
|
|
if (ADDRESSES_EQUAL(&(tmp_h323info->h225SetupAddr),&tmp_src)){ /* forward direction */
|
|
strinfo->call_state=VOIP_CANCELLED;
|
|
}
|
|
else{ /* reverse */
|
|
strinfo->call_state=VOIP_REJECTED;
|
|
tapinfo->rejected_calls++;
|
|
}
|
|
} else {
|
|
strinfo->call_state=VOIP_COMPLETED;
|
|
tapinfo->completed_calls++;
|
|
}
|
|
comment = g_strdup("H225 No Q931 Rel Cause");
|
|
break;
|
|
case H225_PROGRESS:
|
|
case H225_ALERTING:
|
|
case H225_CALL_PROCEDING:
|
|
if (pi->is_faststart == TRUE) tmp_h323info->is_faststart_Proc = TRUE;
|
|
comment = g_strdup_printf("H225 TunnH245:%s FS:%s", (tmp_h323info->is_h245Tunneling==TRUE?"on":"off"),
|
|
(pi->is_faststart==TRUE?"on":"off"));
|
|
break;
|
|
default:
|
|
comment = g_strdup_printf("H225 TunnH245:%s FS:%s", (tmp_h323info->is_h245Tunneling==TRUE?"on":"off"),
|
|
(pi->is_faststart==TRUE?"on":"off"));
|
|
|
|
}
|
|
}
|
|
else if (pi->msg_type == H225_RAS){
|
|
switch(pi->msg_tag){
|
|
case 18: /* LRQ */
|
|
if (!pi->is_duplicate){
|
|
g_free(strinfo->to_identity);
|
|
strinfo->to_identity=g_strdup(pi->dialedDigits);
|
|
tmp_h323info->requestSeqNum = pi->requestSeqNum;
|
|
}
|
|
case 19: /* LCF */
|
|
if (strlen(pi->dialedDigits))
|
|
comment = g_strdup_printf("H225 RAS dialedDigits: %s", pi->dialedDigits);
|
|
else
|
|
comment = g_strdup("H225 RAS");
|
|
break;
|
|
default:
|
|
comment = g_strdup("H225 RAS");
|
|
}
|
|
frame_label = g_strdup_printf("%s", val_to_str(pi->msg_tag, RasMessage_vals, "<unknown>"));
|
|
} else {
|
|
frame_label = g_strdup("H225: Unknown");
|
|
comment = g_strdup("");
|
|
}
|
|
|
|
/* add to graph analysis */
|
|
|
|
/* if the frame number exists in graph, append to it*/
|
|
if (!append_to_frame_graph(tapinfo, pinfo->fd->num, pi->frame_label, comment)) {
|
|
/* if not exist, add to the graph */
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, strinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
g_free((void *)tmp_src.data);
|
|
g_free((void *)tmp_dst.data);
|
|
}
|
|
|
|
/* Add the H245 info if exists to the Graph */
|
|
h245_add_to_graph(pinfo->fd->num);
|
|
|
|
g_free(frame_label);
|
|
g_free(comment);
|
|
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_H225_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
h225_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_H225_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("h225", &(the_tapinfo_struct.h225_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
H225calls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_H225_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_h225_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.h225_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_H225_tap_listener=FALSE;
|
|
}
|
|
|
|
/* Add the h245 label info to the graph */
|
|
void h245_add_to_graph(guint32 new_frame_num)
|
|
{
|
|
gint8 n;
|
|
|
|
if (new_frame_num != h245_labels.frame_num) return;
|
|
|
|
for (n=0; n<h245_labels.labels_count; n++) {
|
|
append_to_frame_graph(&the_tapinfo_struct, new_frame_num, h245_labels.labels[n].frame_label, h245_labels.labels[n].comment);
|
|
g_free(h245_labels.labels[n].frame_label);
|
|
h245_labels.labels[n].frame_label = NULL;
|
|
g_free(h245_labels.labels[n].comment);
|
|
h245_labels.labels[n].comment = NULL;
|
|
}
|
|
h245_labels.frame_num = 0;
|
|
h245_labels.labels_count = 0;
|
|
}
|
|
|
|
/* free the h245_labels if the frame number is different */
|
|
static void h245_free_labels(guint32 new_frame_num)
|
|
{
|
|
gint8 n;
|
|
|
|
if (new_frame_num == h245_labels.frame_num) return;
|
|
|
|
for (n=0; n<h245_labels.labels_count; n++) {
|
|
g_free(h245_labels.labels[n].frame_label);
|
|
h245_labels.labels[n].frame_label = NULL;
|
|
g_free(h245_labels.labels[n].comment);
|
|
h245_labels.labels[n].comment = NULL;
|
|
}
|
|
h245_labels.frame_num = 0;
|
|
h245_labels.labels_count = 0;
|
|
}
|
|
|
|
/* add the frame_label and comment to h245_labels and free the actual one if it is different frame num */
|
|
static void h245_add_label(guint32 new_frame_num, gchar *frame_label, gchar *comment)
|
|
{
|
|
h245_free_labels(new_frame_num);
|
|
|
|
h245_labels.frame_num = new_frame_num;
|
|
h245_labels.labels[h245_labels.labels_count].frame_label = g_strdup(frame_label);
|
|
h245_labels.labels[h245_labels.labels_count].comment = g_strdup(comment);
|
|
|
|
if (h245_labels.labels_count < (H245_MAX-1))
|
|
h245_labels.labels_count++;
|
|
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* whenever a H245dg packet is seen by the tap listener (when H245 tunneling is ON) */
|
|
static int
|
|
H245dgcalls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *H245info)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
h323_calls_info_t *tmp_h323info;
|
|
gchar *frame_label;
|
|
gchar *comment;
|
|
GList* list;
|
|
GList* list2;
|
|
address tmp_src, tmp_dst;
|
|
h245_address_t *h245_add = NULL;
|
|
|
|
const h245_packet_info *pi = H245info;
|
|
|
|
/* check if Tunneling is OFF and we have a call with this H245 add */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_H323){
|
|
tmp_h323info = tmp_listinfo->prot_info;
|
|
|
|
COPY_ADDRESS(&(tmp_src), &(pinfo->src));
|
|
COPY_ADDRESS(&(tmp_dst), &(pinfo->dst));
|
|
list2 = g_list_first(tmp_h323info->h245_list);
|
|
while (list2)
|
|
{
|
|
h245_add=list2->data;
|
|
if ( (ADDRESSES_EQUAL(&(h245_add->h245_address),&tmp_src) && (h245_add->h245_port == pinfo->srcport))
|
|
|| (ADDRESSES_EQUAL(&(h245_add->h245_address),&tmp_dst) && (h245_add->h245_port == pinfo->destport)) ){
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
break;
|
|
}
|
|
list2 = g_list_next(list2);
|
|
}
|
|
if (strinfo!=NULL) break;
|
|
g_free((void *)tmp_src.data);
|
|
g_free((void *)tmp_dst.data);
|
|
}
|
|
list = g_list_next(list);
|
|
}
|
|
|
|
/* Tunnel is OFF, and we matched the h245 add so we add it to graph */
|
|
if (strinfo!=NULL){
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
frame_label = g_strdup(pi->frame_label);
|
|
comment = g_strdup(pi->comment);
|
|
/* if the frame number exists in graph, append to it*/
|
|
if (!append_to_frame_graph(tapinfo, pinfo->fd->num, frame_label, comment)) {
|
|
/* if not exist, add to the graph */
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, strinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
}
|
|
g_free(frame_label);
|
|
g_free(comment);
|
|
} else {
|
|
/* Tunnel is ON, so we save the label info to use it into h225 or q931 tap. OR may be
|
|
tunnel OFF but we did not matched the h245 add, in this case nobady will set this label
|
|
since the frame_num will not match */
|
|
|
|
h245_add_label(pinfo->fd->num, (gchar *) pi->frame_label, (gchar *) pi->comment);
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_H245dg_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
h245dg_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_H245dg_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("h245dg", &(the_tapinfo_struct.h245dg_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
H245dgcalls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_H245dg_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_h245dg_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.h245dg_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_H245dg_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/****************************TAP for SDP PROTOCOL ***************************/
|
|
/****************************************************************************/
|
|
/* whenever a SDP packet is seen by the tap listener */
|
|
static int
|
|
SDPcalls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *SDPinfo)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
const sdp_packet_info *pi = SDPinfo;
|
|
|
|
/* There are protocols like MGCP/SIP where the SDP is called before the tap for the
|
|
MGCP/SIP packet, in those cases we assign the SPD summary to global lastSDPsummary
|
|
to use it later
|
|
*/
|
|
g_free(sdp_summary);
|
|
sdp_frame_num = pinfo->fd->num;
|
|
/* Append to graph the SDP summary if the packet exists */
|
|
sdp_summary = g_strdup_printf("SDP (%s)", pi->summary_str);
|
|
append_to_frame_graph(tapinfo, pinfo->fd->num, sdp_summary, NULL);
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_sdp_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
sdp_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_sdp_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("sdp", &(the_tapinfo_struct.sdp_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
SDPcalls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_sdp_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_sdp_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.sdp_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_sdp_tap_listener=FALSE;
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for MGCP **********************************/
|
|
/****************************************************************************/
|
|
|
|
/*
|
|
This function will look for a signal/event in the SignalReq/ObsEvent string
|
|
and return true if it is found
|
|
*/
|
|
static gboolean isSignal(const gchar *signal, const gchar *signalStr)
|
|
{
|
|
gint i;
|
|
gchar **resultArray;
|
|
|
|
/* if there is no signalStr, just return false */
|
|
if (signalStr == NULL) return FALSE;
|
|
|
|
/* if are both "blank" return true */
|
|
if ( (*signal == '\0') && (*signalStr == '\0') ) return TRUE;
|
|
|
|
/* look for signal in signalSre */
|
|
resultArray = g_strsplit(signalStr, ",", 10);
|
|
|
|
for (i = 0; resultArray[i]; i++) {
|
|
g_strstrip(resultArray[i]);
|
|
if (strcmp(resultArray[i], signal) == 0) return TRUE;
|
|
}
|
|
|
|
g_strfreev(resultArray);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
This function will get the Caller ID info and replace the current string
|
|
This is how it looks the caller Id: rg, ci(02/16/08/29, "3035550002","Ale Sipura 2")
|
|
*/
|
|
static void mgcpCallerID(gchar *signalStr, gchar **callerId)
|
|
{
|
|
gchar **arrayStr;
|
|
|
|
/* if there is no signalStr, just return false */
|
|
if (signalStr == NULL) return;
|
|
|
|
arrayStr = g_strsplit(signalStr, "\"", 10);
|
|
|
|
if (arrayStr[0] == NULL) return;
|
|
|
|
/* look for the ci signal */
|
|
if (strstr(arrayStr[0], "ci(") && (arrayStr[1] != NULL) ) {
|
|
/* free the previous "From" field of the call, and assign the new */
|
|
g_free(*callerId);
|
|
*callerId = g_strdup(arrayStr[1]);
|
|
}
|
|
g_strfreev(arrayStr);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
This function will get the Dialed Digits and replace the current string
|
|
This is how it looks the dialed digits 5,5,5,0,0,0,2,#,*
|
|
*/
|
|
static void mgcpDialedDigits(gchar *signalStr, gchar **dialedDigits)
|
|
{
|
|
gchar *tmpStr;
|
|
gchar resultStr[50];
|
|
gint i,j;
|
|
|
|
/* if there is no signalStr, just return false */
|
|
if (signalStr == NULL) return;
|
|
|
|
tmpStr = g_strdup(signalStr);
|
|
|
|
for ( i = 0 ; tmpStr[i] ; i++) {
|
|
switch (tmpStr[i]) {
|
|
case '0' : case '1' : case '2' : case '3' : case '4' :
|
|
case '5' : case '6' : case '7' : case '8' : case '9' :
|
|
case '#' : case '*' :
|
|
break;
|
|
default:
|
|
tmpStr[i] = '?';
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0, j = 0; tmpStr[i] && i<50; i++) {
|
|
if (tmpStr[i] != '?')
|
|
resultStr[j++] = tmpStr[i];
|
|
}
|
|
resultStr[j] = '\0';
|
|
|
|
if (*resultStr == '\0') return;
|
|
|
|
g_free(*dialedDigits);
|
|
*dialedDigits = g_strdup(resultStr);
|
|
g_free(tmpStr);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************/
|
|
/* whenever a MGCP packet is seen by the tap listener */
|
|
static int
|
|
MGCPcalls_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *MGCPinfo)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
mgcp_calls_info_t *tmp_mgcpinfo = NULL;
|
|
GList* list;
|
|
GList* listGraph;
|
|
gchar *frame_label = NULL;
|
|
gchar *comment = NULL;
|
|
graph_analysis_item_t *gai;
|
|
gboolean new = FALSE;
|
|
gboolean fromEndpoint = FALSE; /* true for calls originated in Endpoints, false for calls from MGC */
|
|
gdouble diff_time;
|
|
|
|
const mgcp_info_t *pi = MGCPinfo;
|
|
|
|
|
|
if ((pi->mgcp_type == MGCP_REQUEST) && !pi->is_duplicate ){
|
|
/* check wether we already have a call with this Endpoint and it is active*/
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if ((tmp_listinfo->protocol == VOIP_MGCP) && (tmp_listinfo->call_active_state == VOIP_ACTIVE)){
|
|
tmp_mgcpinfo = tmp_listinfo->prot_info;
|
|
if (pi->endpointId != NULL){
|
|
if (g_strcasecmp(tmp_mgcpinfo->endpointId,pi->endpointId) == 0){
|
|
/*
|
|
check first if it is an ended call. We consider an ended call after 1sec we don't
|
|
get a packet in this Endpoint and the call has been released
|
|
*/
|
|
diff_time = nstime_to_sec(&pinfo->fd->rel_ts) - tmp_listinfo->stop_sec + (double)tmp_listinfo->stop_usec/1000000;
|
|
if ( ((tmp_listinfo->call_state == VOIP_CANCELLED) || (tmp_listinfo->call_state == VOIP_COMPLETED) || (tmp_listinfo->call_state == VOIP_REJECTED)) && (diff_time > 1) ){
|
|
tmp_listinfo->call_active_state = VOIP_INACTIVE;
|
|
} else {
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* there is no call with this Endpoint, lets see if this a new call or not */
|
|
if (strinfo == NULL){
|
|
if ( (strcmp(pi->code, "NTFY") == 0) && isSignal("hd", pi->observedEvents) ){ /* off hook transition */
|
|
/* this is a new call from the Endpoint */
|
|
fromEndpoint = TRUE;
|
|
new = TRUE;
|
|
} else if (strcmp(pi->code, "CRCX") == 0){
|
|
/* this is a new call from the MGC */
|
|
fromEndpoint = FALSE;
|
|
new = TRUE;
|
|
}
|
|
if (!new) return 0;
|
|
}
|
|
} else if ( ((pi->mgcp_type == MGCP_RESPONSE) && pi->request_available) ||
|
|
((pi->mgcp_type == MGCP_REQUEST) && pi->is_duplicate) ) {
|
|
/* if it is a response OR if it is a duplicated Request, lets look in the Graph if thre is a request that match */
|
|
listGraph = g_list_first(tapinfo->graph_analysis->list);
|
|
while (listGraph)
|
|
{
|
|
gai = listGraph->data;
|
|
if (gai->frame_num == pi->req_num){
|
|
/* there is a request that match, so look the associated call with this call_num */
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if (tmp_listinfo->protocol == VOIP_MGCP){
|
|
if (tmp_listinfo->call_num == gai->conv_num){
|
|
tmp_mgcpinfo = tmp_listinfo->prot_info;
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
if (strinfo != NULL) break;
|
|
}
|
|
listGraph = g_list_next(listGraph);
|
|
}
|
|
/* if there is not a matching request, just return */
|
|
if (strinfo == NULL) return 0;
|
|
} else return 0;
|
|
|
|
/* not in the list? then create a new entry */
|
|
if (strinfo==NULL){
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_CALL_SETUP;
|
|
if (fromEndpoint) {
|
|
strinfo->from_identity=g_strdup(pi->endpointId);
|
|
strinfo->to_identity=g_strdup("");
|
|
} else {
|
|
strinfo->from_identity=g_strdup("");
|
|
strinfo->to_identity=g_strdup(pi->endpointId);
|
|
}
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),&(pinfo->src));
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->selected=FALSE;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_MGCP;
|
|
strinfo->prot_info=g_malloc(sizeof(mgcp_calls_info_t));
|
|
tmp_mgcpinfo=strinfo->prot_info;
|
|
tmp_mgcpinfo->endpointId = g_strdup(pi->endpointId);
|
|
tmp_mgcpinfo->fromEndpoint = fromEndpoint;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
|
|
g_assert(tmp_mgcpinfo != NULL);
|
|
|
|
/* change call state and add to graph */
|
|
switch (pi->mgcp_type)
|
|
{
|
|
case MGCP_REQUEST:
|
|
if ( (strcmp(pi->code, "NTFY") == 0) && (pi->observedEvents != NULL) ){
|
|
frame_label = g_strdup_printf("%s ObsEvt:%s",pi->code, pi->observedEvents);
|
|
|
|
if (tmp_mgcpinfo->fromEndpoint){
|
|
/* use the Dialed digits to fill the "To" for the call, but use the first NTFY */
|
|
if (strinfo->to_identity[0] == '\0') mgcpDialedDigits(pi->observedEvents, &(strinfo->to_identity));
|
|
|
|
/* from MGC and the user picked up, the call is connected */
|
|
} else if (isSignal("hd", pi->observedEvents))
|
|
strinfo->call_state=VOIP_IN_CALL;
|
|
|
|
/* hung up signal */
|
|
if (isSignal("hu", pi->observedEvents)) {
|
|
if ((strinfo->call_state == VOIP_CALL_SETUP) || (strinfo->call_state == VOIP_RINGING)){
|
|
strinfo->call_state = VOIP_CANCELLED;
|
|
} else {
|
|
strinfo->call_state = VOIP_COMPLETED;
|
|
}
|
|
}
|
|
|
|
} else if (strcmp(pi->code, "RQNT") == 0) {
|
|
/* for calls from Endpoint: if there is a "no signal" RQNT and the call was RINGING, we assume this is the CONNECT */
|
|
if ( tmp_mgcpinfo->fromEndpoint && isSignal("", pi->signalReq) && (strinfo->call_state == VOIP_RINGING) ) {
|
|
strinfo->call_state = VOIP_IN_CALL;
|
|
}
|
|
|
|
/* if there is ringback or ring tone, change state to ringing */
|
|
if ( isSignal("rg", pi->signalReq) || isSignal("rt", pi->signalReq) ) {
|
|
strinfo->call_state = VOIP_RINGING;
|
|
}
|
|
|
|
/* if there is a Busy or ReorderTone, and the call was Ringing or Setup the call is Rejected */
|
|
if ( (isSignal("ro", pi->signalReq) || isSignal("bz", pi->signalReq)) && ((strinfo->call_state == VOIP_CALL_SETUP) || (strinfo->call_state = VOIP_RINGING)) ) {
|
|
strinfo->call_state = VOIP_REJECTED;
|
|
}
|
|
|
|
if (pi->signalReq != NULL)
|
|
frame_label = g_strdup_printf("%s%sSigReq:%s",pi->code, (pi->hasDigitMap == TRUE)?" DigitMap ":"", pi->signalReq);
|
|
else
|
|
frame_label = g_strdup_printf("%s%s",pi->code, (pi->hasDigitMap == TRUE)?" DigitMap ":"");
|
|
|
|
/* use the CallerID info to fill the "From" for the call */
|
|
if (!tmp_mgcpinfo->fromEndpoint) mgcpCallerID(pi->signalReq, &(strinfo->from_identity));
|
|
|
|
} else if (strcmp(pi->code, "DLCX") == 0) {
|
|
/*
|
|
if there is a DLCX in a call To an Endpoint and the call was not connected, we use
|
|
the DLCX as the end of the call
|
|
*/
|
|
if (!tmp_mgcpinfo->fromEndpoint){
|
|
if ((strinfo->call_state == VOIP_CALL_SETUP) || (strinfo->call_state == VOIP_RINGING)){
|
|
strinfo->call_state = VOIP_CANCELLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (frame_label == NULL) frame_label = g_strdup_printf("%s",pi->code);
|
|
break;
|
|
case MGCP_RESPONSE:
|
|
frame_label = g_strdup_printf("%d (%s)",pi->rspcode, pi->code);
|
|
break;
|
|
case MGCP_OTHERS:
|
|
/* XXX what to do? */
|
|
break;
|
|
}
|
|
|
|
|
|
comment = g_strdup_printf("MGCP %s %s%s", tmp_mgcpinfo->endpointId, (pi->mgcp_type == MGCP_REQUEST)?"Request":"Response", pi->is_duplicate?" Duplicate":"");
|
|
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
/* add to the graph */
|
|
add_to_graph(tapinfo, pinfo, frame_label, comment, strinfo->call_num, &(pinfo->src), &(pinfo->dst), 1);
|
|
g_free(comment);
|
|
g_free(frame_label);
|
|
|
|
/* add SDP info if apply */
|
|
if ( (sdp_summary != NULL) && (sdp_frame_num == pinfo->fd->num) ){
|
|
append_to_frame_graph(tapinfo, pinfo->fd->num, sdp_summary, NULL);
|
|
g_free(sdp_summary);
|
|
sdp_summary = NULL;
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_MGCP_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
mgcp_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_MGCP_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
/* we send an empty filter, to force a non null "tree" in the mgcp dissector */
|
|
error_string = register_tap_listener("mgcp", &(the_tapinfo_struct.mgcp_dummy), strdup(""),
|
|
voip_calls_dlg_reset,
|
|
MGCPcalls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_MGCP_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_mgcp_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.mgcp_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_MGCP_tap_listener=FALSE;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/****************************TAP for ACTRACE (AudioCodes trace)**************/
|
|
/****************************************************************************/
|
|
|
|
/* whenever a ACTRACE packet is seen by the tap listener */
|
|
static int
|
|
ACTRACEcalls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *ACTRACEinfo)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
const actrace_info_t *pi = ACTRACEinfo;
|
|
GList *list;
|
|
actrace_cas_calls_info_t *tmp_actrace_cas_info;
|
|
voip_calls_info_t *tmp_listinfo;
|
|
voip_calls_info_t *strinfo = NULL;
|
|
|
|
|
|
actrace_frame_num = pinfo->fd->num;
|
|
actrace_trunk = pi->trunk;
|
|
actrace_direction = pi->direction;
|
|
|
|
if (pi->type == 1){ /* is CAS protocol */
|
|
address pstn_add;
|
|
gchar *comment = NULL;
|
|
|
|
strinfo = NULL;
|
|
list = g_list_first(tapinfo->strinfo_list);
|
|
while (list)
|
|
{
|
|
tmp_listinfo=list->data;
|
|
if ( tmp_listinfo->protocol == VOIP_AC_CAS ){
|
|
tmp_actrace_cas_info = tmp_listinfo->prot_info;
|
|
/* TODO: Also check the IP of the Blade, and if the call is complete (no active) */
|
|
if ( (tmp_actrace_cas_info->bchannel == pi->cas_bchannel) && (tmp_actrace_cas_info->trunk == actrace_trunk) ) {
|
|
strinfo = (voip_calls_info_t*)(list->data);
|
|
break;
|
|
}
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
SET_ADDRESS(&pstn_add, AT_STRINGZ, 5, g_strdup("PSTN"));
|
|
|
|
/* if it is a new call, add it to the list */
|
|
if (!strinfo) {
|
|
strinfo = g_malloc(sizeof(voip_calls_info_t));
|
|
strinfo->call_active_state = VOIP_ACTIVE;
|
|
strinfo->call_state = VOIP_CALL_SETUP;
|
|
strinfo->from_identity=g_strdup("N/A");
|
|
strinfo->to_identity=g_strdup("N/A");
|
|
COPY_ADDRESS(&(strinfo->initial_speaker),actrace_direction?&pstn_add:&(pinfo->src));
|
|
strinfo->first_frame_num=pinfo->fd->num;
|
|
strinfo->selected=FALSE;
|
|
strinfo->start_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->start_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->protocol=VOIP_AC_CAS;
|
|
strinfo->prot_info=g_malloc(sizeof(actrace_cas_calls_info_t));
|
|
tmp_actrace_cas_info=strinfo->prot_info;
|
|
tmp_actrace_cas_info->bchannel=pi->cas_bchannel;
|
|
tmp_actrace_cas_info->trunk=actrace_trunk;
|
|
strinfo->npackets = 0;
|
|
strinfo->call_num = tapinfo->ncalls++;
|
|
tapinfo->strinfo_list = g_list_append(tapinfo->strinfo_list, strinfo);
|
|
}
|
|
|
|
strinfo->stop_sec=pinfo->fd->rel_ts.secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_ts.nsecs/1000;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
/* increment the packets counter of all calls */
|
|
++(tapinfo->npackets);
|
|
|
|
if (!comment)
|
|
comment = g_strdup_printf("AC_CAS trunk:%u", actrace_trunk );
|
|
|
|
add_to_graph(tapinfo, pinfo, pi->cas_frame_label , comment, strinfo->call_num,
|
|
actrace_direction?&pstn_add:&(pinfo->src),
|
|
actrace_direction?&(pinfo->src):&pstn_add,
|
|
1 );
|
|
|
|
g_free(comment);
|
|
g_free((char *)pstn_add.data);
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1; /* refresh output */
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* TAP INTERFACE */
|
|
/****************************************************************************/
|
|
static gboolean have_actrace_tap_listener=FALSE;
|
|
/****************************************************************************/
|
|
void
|
|
actrace_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_actrace_tap_listener==FALSE)
|
|
{
|
|
/* don't register tap listener, if we have it already */
|
|
error_string = register_tap_listener("actrace", &(the_tapinfo_struct.actrace_dummy), NULL,
|
|
voip_calls_dlg_reset,
|
|
ACTRACEcalls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_actrace_tap_listener=TRUE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
void
|
|
remove_tap_listener_actrace_calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.actrace_dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_actrace_tap_listener=FALSE;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* ***************************TAP for OTHER PROTOCOL **********************************/
|
|
/****************************************************************************/
|
|
|
|
/****************************************************************************/
|
|
/* whenever a prot_ packet is seen by the tap listener */
|
|
/*
|
|
static int
|
|
prot_calls_packet(void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *prot_info _U_)
|
|
{
|
|
voip_calls_tapinfo_t *tapinfo = &the_tapinfo_struct;
|
|
if (strinfo!=NULL){
|
|
strinfo->stop_sec=pinfo->fd->rel_secs;
|
|
strinfo->stop_usec=pinfo->fd->rel_usecs;
|
|
strinfo->last_frame_num=pinfo->fd->num;
|
|
++(strinfo->npackets);
|
|
++(tapinfo->npackets);
|
|
}
|
|
|
|
tapinfo->redraw = TRUE;
|
|
|
|
return 1;
|
|
}
|
|
*/
|
|
/****************************************************************************/
|
|
/*
|
|
static gboolean have_prot__tap_listener=FALSE;
|
|
|
|
void
|
|
prot_calls_init_tap(void)
|
|
{
|
|
GString *error_string;
|
|
|
|
if(have_prot__tap_listener==FALSE)
|
|
{
|
|
error_string = register_tap_listener("prot_", &(the_tapinfo_struct.prot__dummy),
|
|
NULL,
|
|
voip_calls_dlg_reset,
|
|
prot__calls_packet,
|
|
voip_calls_dlg_draw
|
|
);
|
|
|
|
if (error_string != NULL) {
|
|
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
error_string->str);
|
|
g_string_free(error_string, TRUE);
|
|
exit(1);
|
|
}
|
|
have_prot__tap_listener=TRUE;
|
|
}
|
|
}
|
|
*/
|
|
/****************************************************************************/
|
|
/*
|
|
void
|
|
remove_tap_listener_prot__calls(void)
|
|
{
|
|
protect_thread_critical_region();
|
|
remove_tap_listener(&(the_tapinfo_struct.prot__dummy));
|
|
unprotect_thread_critical_region();
|
|
|
|
have_prot__tap_listener=FALSE;
|
|
}
|
|
*/
|