ui/cli/tap-mgcpstat.c

   1 /* tap-mgcpstat.c
   2  * mgcpstat   2003 Lars Roland
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include <stdio.h>
  28
  29 #include <string.h>
  30 #include "epan/packet_info.h"
  31 #include <epan/tap.h>
  32 #include <epan/stat_cmd_args.h>
  33 #include "epan/value_string.h"
  34 #include "epan/dissectors/packet-mgcp.h"
  35 #include "epan/timestats.h"
  36
  37 #define NUM_TIMESTATS 11
  38
  39 /* used to keep track of the statistics for an entire program interface */
  40 typedef struct _mgcpstat_t {
  41         char *filter;
  42         timestat_t rtd[NUM_TIMESTATS];
  43         guint32 open_req_num;
  44         guint32 disc_rsp_num;
  45         guint32 req_dup_num;
  46         guint32 rsp_dup_num;
  47 } mgcpstat_t;
  48
  49 static const value_string mgcp_mesage_type[] = {
  50   {  0, "Overall"},
  51   {  1, "EPCF   "},
  52   {  2, "CRCX   "},
  53   {  3, "MDCX   "},
  54   {  4, "DLCX   "},
  55   {  5, "RQNT   "},
  56   {  6, "NTFY   "},
  57   {  7, "AUEP   "},
  58   {  8, "AUCX   "},
  59   {  9, "RSIP   "},
  60   {  0, NULL}
  61 };
  62
  63 static int
  64 mgcpstat_packet(void *pms, packet_info *pinfo, epan_dissect_t *edt _U_, const void *pmi)
  65 {
  66         mgcpstat_t *ms=(mgcpstat_t *)pms;
  67         const mgcp_info_t *mi=(const mgcp_info_t *)pmi;
  68         nstime_t delta;
  69         int ret = 0;
  70
  71         switch (mi->mgcp_type) {
  72
  73         case MGCP_REQUEST:
  74                 if(mi->is_duplicate){
  75                         /* Duplicate is ignored */
  76                         ms->req_dup_num++;
  77                 }
  78                 else {
  79                         ms->open_req_num++;
  80                 }
  81                 break;
  82
  83         case MGCP_RESPONSE:
  84                 if(mi->is_duplicate){
  85                         /* Duplicate is ignored */
  86                         ms->rsp_dup_num++;
  87                 }
  88                 else if (!mi->request_available) {
  89                         /* no request was seen */
  90                         ms->disc_rsp_num++;
  91                 }
  92                 else {
  93                         ms->open_req_num--;
  94                         /* calculate time delta between request and response */
  95                         nstime_delta(&delta, &pinfo->fd->abs_ts, &mi->req_time);
  96
  97                         time_stat_update(&(ms->rtd[0]),&delta, pinfo);
  98
  99                         if (g_ascii_strncasecmp(mi->code, "EPCF", 4) == 0 ) {
 100                                 time_stat_update(&(ms->rtd[1]),&delta, pinfo);
 101                         }
 102                         else if (g_ascii_strncasecmp(mi->code, "CRCX", 4) == 0 ) {
 103                                 time_stat_update(&(ms->rtd[2]),&delta, pinfo);
 104                         }
 105                         else if (g_ascii_strncasecmp(mi->code, "MDCX", 4) == 0 ) {
 106                                 time_stat_update(&(ms->rtd[3]),&delta, pinfo);
 107                         }
 108                         else if (g_ascii_strncasecmp(mi->code, "DLCX", 4) == 0 ) {
 109                                 time_stat_update(&(ms->rtd[4]),&delta, pinfo);
 110                         }
 111                         else if (g_ascii_strncasecmp(mi->code, "RQNT", 4) == 0 ) {
 112                                 time_stat_update(&(ms->rtd[5]),&delta, pinfo);
 113                         }
 114                         else if (g_ascii_strncasecmp(mi->code, "NTFY", 4) == 0 ) {
 115                                 time_stat_update(&(ms->rtd[6]),&delta, pinfo);
 116                         }
 117                         else if (g_ascii_strncasecmp(mi->code, "AUEP", 4) == 0 ) {
 118                                 time_stat_update(&(ms->rtd[7]),&delta, pinfo);
 119                         }
 120                         else if (g_ascii_strncasecmp(mi->code, "AUCX", 4) == 0 ) {
 121                                 time_stat_update(&(ms->rtd[8]),&delta, pinfo);
 122                         }
 123                         else if (g_ascii_strncasecmp(mi->code, "RSIP", 4) == 0 ) {
 124                                 time_stat_update(&(ms->rtd[9]),&delta, pinfo);
 125                         }
 126                         else {
 127                                 time_stat_update(&(ms->rtd[10]),&delta, pinfo);
 128                         }
 129
 130                         ret = 1;
 131                 }
 132                 break;
 133
 134         default:
 135                 break;
 136         }
 137
 138         return ret;
 139 }
 140
 141 static void
 142 mgcpstat_draw(void *pms)
 143 {
 144         mgcpstat_t *ms=(mgcpstat_t *)pms;
 145         int i;
 146
 147         /* printing results */
 148         printf("\n");
 149         printf("=====================================================================================================\n");
 150         printf("MGCP Response Time Delay (RTD) Statistics:\n");
 151         printf("Filter for statistics: %s\n",ms->filter?ms->filter:"");
 152         printf("Duplicate requests: %u\n",ms->req_dup_num);
 153         printf("Duplicate responses: %u\n",ms->rsp_dup_num);
 154         printf("Open requests: %u\n",ms->open_req_num);
 155         printf("Discarded responses: %u\n",ms->disc_rsp_num);
 156         printf("Type    | Messages   |    Min RTD    |    Max RTD    |    Avg RTD    | Min in Frame | Max in Frame |\n");
 157         for(i=0;i<NUM_TIMESTATS;i++) {
 158                 if(ms->rtd[i].num) {
 159                         printf("%s | %7u    | %8.2f msec | %8.2f msec | %8.2f msec |  %10u  |  %10u  |\n",
 160                                 val_to_str(i,mgcp_mesage_type,"Other  "),ms->rtd[i].num,
 161                                 nstime_to_msec(&(ms->rtd[i].min)), nstime_to_msec(&(ms->rtd[i].max)),
 162                                 get_average(&(ms->rtd[i].tot), ms->rtd[i].num),
 163                                 ms->rtd[i].min_num, ms->rtd[i].max_num
 164                         );
 165                 }
 166         }
 167         printf("=====================================================================================================\n");
 168 }
 169
 170
 171 static void
 172 mgcpstat_init(const char *optarg, void* userdata _U_)
 173 {
 174         mgcpstat_t *ms;
 175         int i;
 176         GString *error_string;
 177
 178         ms=g_new(mgcpstat_t,1);
 179         if(!strncmp(optarg,"mgcp,rtd,",9)){
 180                 ms->filter=g_strdup(optarg+9);
 181         } else {
 182                 ms->filter=NULL;
 183         }
 184
 185         for(i=0;i<NUM_TIMESTATS;i++) {
 186                 ms->rtd[i].num=0;
 187                 ms->rtd[i].min_num=0;
 188                 ms->rtd[i].max_num=0;
 189                 ms->rtd[i].min.secs=0;
 190                 ms->rtd[i].min.nsecs=0;
 191                 ms->rtd[i].max.secs=0;
 192                 ms->rtd[i].max.nsecs=0;
 193                 ms->rtd[i].tot.secs=0;
 194                 ms->rtd[i].tot.nsecs=0;
 195         }
 196
 197         ms->open_req_num=0;
 198         ms->disc_rsp_num=0;
 199         ms->req_dup_num=0;
 200         ms->rsp_dup_num=0;
 201
 202         error_string=register_tap_listener("mgcp", ms, ms->filter, 0, NULL, mgcpstat_packet, mgcpstat_draw);
 203         if(error_string){
 204                 /* error, we failed to attach to the tap. clean up */
 205                 g_free(ms->filter);
 206                 g_free(ms);
 207
 208                 fprintf(stderr, "tshark: Couldn't register mgcp,rtd tap: %s\n",
 209                     error_string->str);
 210                 g_string_free(error_string, TRUE);
 211                 exit(1);
 212         }
 213 }
 214
 215
 216 void
 217 register_tap_listener_mgcpstat(void)
 218 {
 219         /* We don't register this tap, if we don't have the mgcp plugin loaded.*/
 220         if (find_tap_id("mgcp")) {
 221                 register_stat_cmd_arg("mgcp,rtd", mgcpstat_init, NULL);
 222         }
 223 }
 224