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/value_string.h"
  39 #include "smb.h"
  40 #include "register.h"
  41 #include "timestats.h"
  42
  43 /* used to keep track of the statistics for an entire program interface */
  44 typedef struct _smbstat_t {
  45         char *filter;
  46         timestat_t proc[256];
  47         timestat_t trans2[256];
  48         timestat_t nt_trans[256];
  49 } smbstat_t;
  50
  51
  52
  53 static int
  54 smbstat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *psi)
  55 {
  56         smbstat_t *ss=(smbstat_t *)pss;
  57         const smb_info_t *si=psi;
  58         nstime_t delta;
  59         timestat_t *sp=NULL;
  60
  61         /* we are only interested in reply packets */
  62         if(si->request){
  63                 return 0;
  64         }
  65         /* if we havnt seen the request, just ignore it */
  66         if(!si->sip){
  67                 return 0;
  68         }
  69
  70         if(si->cmd==0xA0){
  71                 smb_nt_transact_info_t *sti=(smb_nt_transact_info_t *)si->sip->extra_info;
  72
  73                 /*nt transaction*/
  74                 if(sti){
  75                         sp=&(ss->nt_trans[sti->subcmd]);
  76                 }
  77         } else if(si->cmd==0x32){
  78                 smb_transact2_info_t *st2i=(smb_transact2_info_t *)si->sip->extra_info;
  79
  80                 /*transaction2*/
  81                 if(st2i){
  82                         sp=&(ss->trans2[st2i->subcmd]);
  83                 }
  84         } else {
  85                 sp=&(ss->proc[si->cmd]);
  86         }
  87
  88         /* calculate time delta between request and reply */
  89         delta.secs=pinfo->fd->abs_secs-si->sip->req_time.secs;
  90         delta.nsecs=pinfo->fd->abs_usecs*1000-si->sip->req_time.nsecs;
  91         if(delta.nsecs<0){
  92                 delta.nsecs+=1000000000;
  93                 delta.secs--;
  94         }
  95
  96         if(sp){
  97                 time_stat_update(sp,&delta, pinfo);
  98         }
  99
 100         return 1;
 101 }
 102
 103 static void
 104 smbstat_draw(void *pss)
 105 {
 106         smbstat_t *ss=(smbstat_t *)pss;
 107         guint32 i;
 108 #ifdef G_HAVE_UINT64
 109         guint64 td;
 110 #else
 111         guint32 td;
 112 #endif
 113         printf("\n");
 114         printf("===================================================================\n");
 115         printf("SMB RTT Statistics:\n");
 116         printf("Filter: %s\n",ss->filter?ss->filter:"");
 117         printf("Commands                   Calls   Min RTT   Max RTT   Avg RTT\n");
 118         for(i=0;i<256;i++){
 119                 /* nothing seen, nothing to do */
 120                 if(ss->proc[i].num==0){
 121                         continue;
 122                 }
 123
 124                 /* we deal with transaction2 later */
 125                 if(i==0x32){
 126                         continue;
 127                 }
 128
 129                 /* we deal with nt transaction later */
 130                 if(i==0xA0){
 131                         continue;
 132                 }
 133
 134                 /* scale it to units of 10us.*/
 135                 /* for long captures with a large tot time, this can overflow on 32bit */
 136                 td=(int)ss->proc[i].tot.secs;
 137                 td=td*100000+(int)ss->proc[i].tot.nsecs/10000;
 138                 if(ss->proc[i].num){
 139                         td/=ss->proc[i].num;
 140                 } else {
 141                         td=0;
 142                 }
 143
 144                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 145                         val_to_str(i, smb_cmd_vals, "Unknown (0x%02x)"),
 146                         ss->proc[i].num,
 147                         (int)ss->proc[i].min.secs,ss->proc[i].min.nsecs/10000,
 148                         (int)ss->proc[i].max.secs,ss->proc[i].max.nsecs/10000,
 149                         td/100000, td%100000
 150                 );
 151         }
 152
 153         printf("\n");
 154         printf("Transaction2 Commands      Calls   Min RTT   Max RTT   Avg RTT\n");
 155         for(i=0;i<256;i++){
 156                 /* nothing seen, nothing to do */
 157                 if(ss->trans2[i].num==0){
 158                         continue;
 159                 }
 160
 161                 /* scale it to units of 10us.*/
 162                 /* for long captures with a large tot time, this can overflow on 32bit */
 163                 td=(int)ss->trans2[i].tot.secs;
 164                 td=td*100000+(int)ss->trans2[i].tot.nsecs/10000;
 165                 if(ss->trans2[i].num){
 166                         td/=ss->trans2[i].num;
 167                 } else {
 168                         td=0;
 169                 }
 170
 171                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 172                         val_to_str(i, trans2_cmd_vals, "Unknown (0x%02x)"),
 173                         ss->trans2[i].num,
 174                         (int)ss->trans2[i].min.secs,ss->trans2[i].min.nsecs/10000,
 175                         (int)ss->trans2[i].max.secs,ss->trans2[i].max.nsecs/10000,
 176                         td/100000, td%100000
 177                 );
 178         }
 179
 180         printf("\n");
 181         printf("NT Transaction Commands    Calls   Min RTT   Max RTT   Avg RTT\n");
 182         for(i=0;i<256;i++){
 183                 /* nothing seen, nothing to do */
 184                 if(ss->nt_trans[i].num==0){
 185                         continue;
 186                 }
 187
 188                 /* scale it to units of 10us.*/
 189                 /* for long captures with a large tot time, this can overflow on 32bit */
 190                 td=(int)ss->nt_trans[i].tot.secs;
 191                 td=td*100000+(int)ss->nt_trans[i].tot.nsecs/10000;
 192                 if(ss->nt_trans[i].num){
 193                         td/=ss->nt_trans[i].num;
 194                 } else {
 195                         td=0;
 196                 }
 197
 198                 printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
 199                         val_to_str(i, nt_cmd_vals, "Unknown (0x%02x)"),
 200                         ss->nt_trans[i].num,
 201                         (int)ss->nt_trans[i].min.secs,ss->nt_trans[i].min.nsecs/10000,
 202                         (int)ss->nt_trans[i].max.secs,ss->nt_trans[i].max.nsecs/10000,
 203                         td/100000, td%100000
 204                 );
 205         }
 206
 207         printf("===================================================================\n");
 208 }
 209
 210
 211 static void
 212 smbstat_init(char *optarg)
 213 {
 214         smbstat_t *ss;
 215         guint32 i;
 216         char *filter=NULL;
 217         GString *error_string;
 218
 219         if(!strncmp(optarg,"smb,rtt,",8)){
 220                 filter=optarg+8;
 221         } else {
 222                 filter=NULL;
 223         }
 224
 225         ss=g_malloc(sizeof(smbstat_t));
 226         if(filter){
 227                 ss->filter=g_malloc(strlen(filter)+1);
 228                 strcpy(ss->filter, filter);
 229         } else {
 230                 ss->filter=NULL;
 231         }
 232
 233         for(i=0;i<256;i++){
 234                 ss->proc[i].num=0;
 235                 ss->proc[i].min_num=0;
 236                 ss->proc[i].max_num=0;
 237                 ss->proc[i].min.secs=0;
 238                 ss->proc[i].min.nsecs=0;
 239                 ss->proc[i].max.secs=0;
 240                 ss->proc[i].max.nsecs=0;
 241                 ss->proc[i].tot.secs=0;
 242                 ss->proc[i].tot.nsecs=0;
 243
 244                 ss->trans2[i].num=0;
 245                 ss->trans2[i].min_num=0;
 246                 ss->trans2[i].max_num=0;
 247                 ss->trans2[i].min.secs=0;
 248                 ss->trans2[i].min.nsecs=0;
 249                 ss->trans2[i].max.secs=0;
 250                 ss->trans2[i].max.nsecs=0;
 251                 ss->trans2[i].tot.secs=0;
 252                 ss->trans2[i].tot.nsecs=0;
 253
 254                 ss->nt_trans[i].num=0;
 255                 ss->nt_trans[i].min_num=0;
 256                 ss->nt_trans[i].max_num=0;
 257                 ss->nt_trans[i].min.secs=0;
 258                 ss->nt_trans[i].min.nsecs=0;
 259                 ss->nt_trans[i].max.secs=0;
 260                 ss->nt_trans[i].max.nsecs=0;
 261                 ss->nt_trans[i].tot.secs=0;
 262                 ss->nt_trans[i].tot.nsecs=0;
 263         }
 264
 265         error_string=register_tap_listener("smb", ss, filter, NULL, smbstat_packet, smbstat_draw);
 266         if(error_string){
 267                 /* error, we failed to attach to the tap. clean up */
 268                 g_free(ss->filter);
 269                 g_free(ss);
 270
 271                 fprintf(stderr, "tethereal: Couldn't register smb,rtt tap: %s\n",
 272                     error_string->str);
 273                 g_string_free(error_string, TRUE);
 274                 exit(1);
 275         }
 276 }
 277
 278
 279 void
 280 register_tap_listener_smbstat(void)
 281 {
 282         register_ethereal_tap("smb,rtt", smbstat_init);
 283 }
 284