summary.c

   1 /* summary.c
   2  * Routines for capture file summary info
   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 <epan/packet.h>
  30 #include "cfile.h"
  31 #include "summary.h"
  32 #ifdef HAVE_LIBPCAP
  33 #include "capture_ui_utils.h"
  34 #endif
  35
  36
  37 static double
  38 secs_usecs( guint32 s, guint32 us)
  39 {
  40   return (us / 1000000.0) + (double)s;
  41 }
  42
  43 static void
  44 tally_frame_data(frame_data *cur_frame, summary_tally *sum_tally)
  45 {
  46   double cur_time;
  47
  48   cur_time = secs_usecs(cur_frame->abs_secs, cur_frame->abs_usecs);
  49
  50   if (cur_time < sum_tally->start_time) {
  51     sum_tally->start_time = cur_time;
  52   }
  53   if (cur_time > sum_tally->stop_time){
  54     sum_tally->stop_time = cur_time;
  55   }
  56   sum_tally->bytes += cur_frame->pkt_len;
  57   if (cur_frame->flags.passed_dfilter){
  58     if (sum_tally->filtered_count==0){
  59             sum_tally->filtered_start= cur_time;
  60             sum_tally->filtered_stop = cur_time;
  61     } else {
  62             if (cur_time < sum_tally->filtered_start) {
  63                     sum_tally->start_time = cur_time;
  64             }
  65             if (cur_time > sum_tally->filtered_stop) {
  66                     sum_tally->filtered_stop = cur_time;
  67             }
  68     }
  69     sum_tally->filtered_count++;
  70     sum_tally->filtered_bytes += cur_frame->pkt_len ;
  71   }
  72   if (cur_frame->flags.marked)
  73     sum_tally->marked_count++;
  74
  75 }
  76
  77 void
  78 summary_fill_in(capture_file *cf, summary_tally *st)
  79 {
  80
  81   frame_data    *first_frame, *cur_frame;
  82   int           i;
  83   frame_data    *cur_glist;
  84
  85   st->start_time = 0;
  86   st->stop_time = 0;
  87   st->bytes = 0;
  88   st->filtered_count = 0;
  89   st->filtered_start = 0;
  90   st->filtered_stop   = 0;
  91   st->filtered_bytes = 0;
  92   st->marked_count = 0;
  93
  94   /* initialize the tally */
  95   if (cf->plist != NULL) {
  96     first_frame = cf->plist;
  97     st->start_time      = secs_usecs(first_frame->abs_secs,first_frame->abs_usecs);
  98     st->stop_time = secs_usecs(first_frame->abs_secs,first_frame->abs_usecs);
  99     cur_glist = cf->plist;
 100
 101     for (i = 0; i < cf->count; i++) {
 102       cur_frame = cur_glist;
 103       tally_frame_data(cur_frame, st);
 104       cur_glist = cur_glist->next;
 105     }
 106   }
 107
 108   st->filename = cf->filename;
 109   st->file_length = cf->f_len;
 110   st->encap_type = cf->cd_t;
 111   st->has_snap = cf->has_snap;
 112   st->snap = cf->snap;
 113   st->elapsed_time = secs_usecs(cf->esec, cf->eusec);
 114   st->packet_count = cf->count;
 115   st->drops_known = cf->drops_known;
 116   st->drops = cf->drops;
 117   st->dfilter = cf->dfilter;
 118
 119   /* capture related */
 120   st->cfilter = NULL;
 121   st->iface = NULL;
 122   st->iface_descr = NULL;
 123 }
 124
 125
 126 #ifdef HAVE_LIBPCAP
 127 void
 128 summary_fill_in_capture(capture_options *capture_opts, summary_tally *st)
 129 {
 130   st->cfilter = capture_opts->cfilter;
 131   st->iface = capture_opts->iface;
 132   if(st->iface) {
 133     st->iface_descr = get_interface_descriptive_name(st->iface);
 134   } else {
 135     st->iface_descr = NULL;
 136   }
 137 }
 138 #endif