tap-smbstat.c

   1 /* tap-smbstat.c
   2  * smbstat   2003 Ronnie Sahlberg
   3  *
   4  * $Id$
   5  *
   6  * Ethereal - Network traffic analyzer
   7  * By Gerald Combs <gerald@ethereal.com>
   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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <stdio.h>
  30
  31 #ifdef HAVE_SYS_TYPES_H
  32 # include <sys/types.h>
  33 #endif
  34
  35 #include <string.h>
  36 #include "epan/packet_info.h"
  37 #include <epan/tap.h>
  38 #include <epan/stat_cmd_args.h>
  39 #include "epan/value_string.h"
  40 #include <epan/dissectors/packet-smb.h>
  41 #include "register.h"
  42 #include "timestats.h"
  43
  44 /* used to keep track of the statistics for an entire program interface */
  45 typedef struct _smbstat_t {
  46         char *filter;
  47         timestat_t proc[256];
  48         timestat_t trans2[256];
  49         timestat_t nt_trans[256];
  50 } smbstat_t;
  51
  52
  53
  54 static int
  55 smbstat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *psi)
  56 {
  57         smbstat_t *ss=(smbstat_t *)pss;
  58         const smb_info_t *si=psi;
  59         nstime_t t, deltat;
  60         timestat_t *sp=NULL;
  61
  62         /* we are only interested in reply packets */
  63         if(si->request){
  64                 return 0;
  65         }
  66         /* if we havnt seen the request, just ignore it */
  67         if(!si->sip){
  68                 return 0;
  69         }
  70
  71         if(si->cmd==0xA0 && si->sip->extra_info_type == SMB_EI_NTI){
  72                 smb_nt_transact_info_t *sti=(smb_nt_transact_info_t *)si->sip->extra_info;
  73
  74                 /*nt transaction*/
  75                 if(sti){
  76                         sp=&(ss->nt_trans[sti->subcmd]);
  77                 }
  78         } else if(si->cmd==0x32 && si->sip->extra_info_type == SMB_EI_T2I){
  79                 smb_transact2_info_t *st2i=(smb_transact2_info_t *)si->sip->extra_info;
  80
  81                 /*transaction2*/
  82                 if(st2i){
  83                         sp=&(ss->trans2[st2i->subcmd]);
  84                 }
  85         } else {
  86                 sp=&(ss->proc[si->cmd]);
  87         }
  88
  89         /* calculate time delta between request and reply */
  90         t=pinfo->fd->abs_ts;
  91         nstime_delta(&deltat, &t, &si->sip->req_time);
  92
  93         if(sp){
  94                 time_stat_update(sp,&deltat, pinfo);
  95         }
  96
  97         return 1;
  98 }
  99
 100 static void
 101 smbstat_draw(void *pss)
 102 {
 103         smbstat_t *ss=(smbstat_t *)pss;
 104         guint32 i;
 105 #ifdef G_HAVE_UINT64
 106         guint64 td;
 107 #else
 108         guint32 td;
 109 #endif
 110         printf("\n");
 111         printf("===================================================================\n");
 112         printf("SMB RTT Statistics:\n");
 113         printf("Filter: %s\n",ss->filter?ss->filter:"");
 114         printf("Commands                   Calls   Min RTT   Max RTT   Avg RTT\n");
 115         for(i=0;i<256;i++){
 116                 /* nothing seen, nothing to do */
 117                 if(ss->proc[i].num==0){
 118                         continue;
 119                 }
 120
 121                 /* we deal with transaction2 later */
 122                 if(i==0x32){
 123                         continue;
 124                 }
 125
 126                 /* we deal with nt transaction later */
 127                 if(i==0xA0){
 128                         continue;
 129                 }
 130
 131                 /* scale it to units of 10us.*/
 132                 /* for long captures with a large tot time, this can overflow on 32bit */
 133                 td=(int)ss->proc[i].tot.secs;
 134                 td=td*100000+(int)ss->proc[i].tot.nsecs/10000;
 135                 if(ss->proc[i].num){
 136                         td/=ss->proc[i].num;
 137                 } else {
 138                         td=0;
 139                 }
 140
 141                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 142                         val_to_str(i, smb_cmd_vals, "Unknown (0x%02x)"),
 143                         ss->proc[i].num,
 144                         (int)ss->proc[i].min.secs,ss->proc[i].min.nsecs/10000,
 145                         (int)ss->proc[i].max.secs,ss->proc[i].max.nsecs/10000,
 146                         td/100000, td%100000
 147                 );
 148         }
 149
 150         printf("\n");
 151         printf("Transaction2 Commands      Calls   Min RTT   Max RTT   Avg RTT\n");
 152         for(i=0;i<256;i++){
 153                 /* nothing seen, nothing to do */
 154                 if(ss->trans2[i].num==0){
 155                         continue;
 156                 }
 157
 158                 /* scale it to units of 10us.*/
 159                 /* for long captures with a large tot time, this can overflow on 32bit */
 160                 td=(int)ss->trans2[i].tot.secs;
 161                 td=td*100000+(int)ss->trans2[i].tot.nsecs/10000;
 162                 if(ss->trans2[i].num){
 163                         td/=ss->trans2[i].num;
 164                 } else {
 165                         td=0;
 166                 }
 167
 168                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 169                         val_to_str(i, trans2_cmd_vals, "Unknown (0x%02x)"),
 170                         ss->trans2[i].num,
 171                         (int)ss->trans2[i].min.secs,ss->trans2[i].min.nsecs/10000,
 172                         (int)ss->trans2[i].max.secs,ss->trans2[i].max.nsecs/10000,
 173                         td/100000, td%100000
 174                 );
 175         }
 176
 177         printf("\n");
 178         printf("NT Transaction Commands    Calls   Min RTT   Max RTT   Avg RTT\n");
 179         for(i=0;i<256;i++){
 180                 /* nothing seen, nothing to do */
 181                 if(ss->nt_trans[i].num==0){
 182                         continue;
 183                 }
 184
 185                 /* scale it to units of 10us.*/
 186                 /* for long captures with a large tot time, this can overflow on 32bit */
 187                 td=(int)ss->nt_trans[i].tot.secs;
 188                 td=td*100000+(int)ss->nt_trans[i].tot.nsecs/10000;
 189                 if(ss->nt_trans[i].num){
 190                         td/=ss->nt_trans[i].num;
 191                 } else {
 192                         td=0;
 193                 }
 194
 195                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 196                         val_to_str(i, nt_cmd_vals, "Unknown (0x%02x)"),
 197                         ss->nt_trans[i].num,
 198                         (int)ss->nt_trans[i].min.secs,ss->nt_trans[i].min.nsecs/10000,
 199                         (int)ss->nt_trans[i].max.secs,ss->nt_trans[i].max.nsecs/10000,
 200                         td/100000, td%100000
 201                 );
 202         }
 203
 204         printf("===================================================================\n");
 205 }
 206
 207
 208 static void
 209 smbstat_init(const char *optarg,void* userdata _U_)
 210 {
 211         smbstat_t *ss;
 212         guint32 i;
 213         const char *filter=NULL;
 214         GString *error_string;
 215
 216         if(!strncmp(optarg,"smb,rtt,",8)){
 217                 filter=optarg+8;
 218         } else {
 219                 filter=NULL;
 220         }
 221
 222         ss=g_malloc(sizeof(smbstat_t));
 223         if(filter){
 224                 ss->filter=g_malloc(strlen(filter)+1);
 225                 strcpy(ss->filter, filter);
 226         } else {
 227                 ss->filter=NULL;
 228         }
 229
 230         for(i=0;i<256;i++){
 231                 ss->proc[i].num=0;
 232                 ss->proc[i].min_num=0;
 233                 ss->proc[i].max_num=0;
 234                 ss->proc[i].min.secs=0;
 235                 ss->proc[i].min.nsecs=0;
 236                 ss->proc[i].max.secs=0;
 237                 ss->proc[i].max.nsecs=0;
 238                 ss->proc[i].tot.secs=0;
 239                 ss->proc[i].tot.nsecs=0;
 240
 241                 ss->trans2[i].num=0;
 242                 ss->trans2[i].min_num=0;
 243                 ss->trans2[i].max_num=0;
 244                 ss->trans2[i].min.secs=0;
 245                 ss->trans2[i].min.nsecs=0;
 246                 ss->trans2[i].max.secs=0;
 247                 ss->trans2[i].max.nsecs=0;
 248                 ss->trans2[i].tot.secs=0;
 249                 ss->trans2[i].tot.nsecs=0;
 250
 251                 ss->nt_trans[i].num=0;
 252                 ss->nt_trans[i].min_num=0;
 253                 ss->nt_trans[i].max_num=0;
 254                 ss->nt_trans[i].min.secs=0;
 255                 ss->nt_trans[i].min.nsecs=0;
 256                 ss->nt_trans[i].max.secs=0;
 257                 ss->nt_trans[i].max.nsecs=0;
 258                 ss->nt_trans[i].tot.secs=0;
 259                 ss->nt_trans[i].tot.nsecs=0;
 260         }
 261
 262         error_string=register_tap_listener("smb", ss, filter, NULL, smbstat_packet, smbstat_draw);
 263         if(error_string){
 264                 /* error, we failed to attach to the tap. clean up */
 265                 g_free(ss->filter);
 266                 g_free(ss);
 267
 268                 fprintf(stderr, "tethereal: Couldn't register smb,rtt tap: %s\n",
 269                     error_string->str);
 270                 g_string_free(error_string, TRUE);
 271                 exit(1);
 272         }
 273 }
 274
 275
 276 void
 277 register_tap_listener_smbstat(void)
 278 {
 279         register_stat_cmd_arg("smb,rtt", smbstat_init,NULL);
 280 }
 281