tap-afpstat.c

   1 /* tap-afpstat.c
   2  * Based on
   3  * smbstat   2003 Ronnie Sahlberg
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <stdio.h>
  31
  32 #ifdef HAVE_SYS_TYPES_H
  33 # include <sys/types.h>
  34 #endif
  35
  36 #include <string.h>
  37 #include <epan/packet_info.h>
  38 #include <epan/tap.h>
  39 #include <epan/stat_cmd_args.h>
  40 #include <epan/value_string.h>
  41 #include <epan/dissectors/packet-afp.h>
  42 #include "timestats.h"
  43
  44 /* used to keep track of the statistics for an entire program interface */
  45 typedef struct _afpstat_t {
  46         char *filter;
  47         timestat_t proc[256];
  48 } afpstat_t;
  49
  50 static int
  51 afpstat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *prv)
  52 {
  53         afpstat_t *ss=(afpstat_t *)pss;
  54         const afp_request_val *request_val=prv;
  55         nstime_t t, deltat;
  56         timestat_t *sp=NULL;
  57
  58         /* if we havnt seen the request, just ignore it */
  59         if(!request_val){
  60                 return 0;
  61         }
  62
  63         sp=&(ss->proc[request_val->command]);
  64
  65         /* calculate time delta between request and reply */
  66         t=pinfo->fd->abs_ts;
  67         nstime_delta(&deltat, &t, &request_val->req_time);
  68
  69         if(sp){
  70                 time_stat_update(sp,&deltat, pinfo);
  71         }
  72
  73         return 1;
  74 }
  75
  76 static void
  77 afpstat_draw(void *pss)
  78 {
  79         afpstat_t *ss=(afpstat_t *)pss;
  80         guint32 i;
  81         guint64 td;
  82         printf("\n");
  83         printf("===================================================================\n");
  84         printf("AFP RTT Statistics:\n");
  85         printf("Filter: %s\n",ss->filter?ss->filter:"");
  86         printf("Commands                   Calls   Min RTT   Max RTT   Avg RTT\n");
  87         for(i=0;i<256;i++){
  88                 /* nothing seen, nothing to do */
  89                 if(ss->proc[i].num==0){
  90                         continue;
  91                 }
  92
  93                 /* scale it to units of 10us.*/
  94                 td=ss->proc[i].tot.secs;
  95                 td=td*100000+(int)ss->proc[i].tot.nsecs/10000;
  96                 if(ss->proc[i].num){
  97                         td/=ss->proc[i].num;
  98                 } else {
  99                         td=0;
 100                 }
 101
 102                 printf("%-25s %6d %3d.%05d %3d.%05d %3" G_GINT64_MODIFIER "u.%05" G_GINT64_MODIFIER "u\n",
 103                         val_to_str_ext(i, &CommandCode_vals_ext, "Unknown (%u)"),
 104                         ss->proc[i].num,
 105                         (int)ss->proc[i].min.secs,ss->proc[i].min.nsecs/10000,
 106                         (int)ss->proc[i].max.secs,ss->proc[i].max.nsecs/10000,
 107                         td/100000, td%100000
 108                 );
 109         }
 110         printf("===================================================================\n");
 111 }
 112
 113
 114 static void
 115 afpstat_init(const char *optarg, void* userdata _U_)
 116 {
 117         afpstat_t *ss;
 118         guint32 i;
 119         const char *filter=NULL;
 120         GString *error_string;
 121
 122         if(!strncmp(optarg,"afp,rtt,",8)){
 123                 filter=optarg+8;
 124         } else {
 125                 filter=NULL;
 126         }
 127
 128         ss=g_malloc(sizeof(afpstat_t));
 129         if(filter){
 130                 ss->filter=g_strdup(filter);
 131         } else {
 132                 ss->filter=NULL;
 133         }
 134
 135         for(i=0;i<256;i++){
 136                 ss->proc[i].num=0;
 137                 ss->proc[i].min_num=0;
 138                 ss->proc[i].max_num=0;
 139                 ss->proc[i].min.secs=0;
 140                 ss->proc[i].min.nsecs=0;
 141                 ss->proc[i].max.secs=0;
 142                 ss->proc[i].max.nsecs=0;
 143                 ss->proc[i].tot.secs=0;
 144                 ss->proc[i].tot.nsecs=0;
 145         }
 146
 147         error_string=register_tap_listener("afp", ss, filter, 0, NULL, afpstat_packet, afpstat_draw);
 148         if(error_string){
 149                 /* error, we failed to attach to the tap. clean up */
 150                 g_free(ss->filter);
 151                 g_free(ss);
 152
 153                 fprintf(stderr, "tshark: Couldn't register afp,rtt tap: %s\n",
 154                     error_string->str);
 155                 g_string_free(error_string, TRUE);
 156                 exit(1);
 157         }
 158 }
 159
 160 void
 161 register_tap_listener_afpstat(void)
 162 {
 163         register_stat_cmd_arg("afp,rtt", afpstat_init,NULL);
 164 }