![Ulf Lamping](/assets/img/avatar_default.png)
I've done more than a day to change the timestamp resolution from microseconds to nanoseconds. As I really don't want to loose those changes, I'm going to check in the changes I've done so far. Hopefully someone else will give me a helping hand with the things left ... What's done: I've changed the timestamp resolution from usec to nsec in almost any place in the sources. I've changed parts of the implementation in nstime.s/.h and a lot of places elsewhere. As I don't understand the editcap source (well, I'm maybe just too tired right now), hopefully someone else might be able to fix this soon. Doing all those changes, we get native nanosecond timestamp resolution in Ethereal. After fixing all the remaining issues, I'll take a look how to display this in a convenient way... As I've also changed the wiretap timestamp resolution from usec to nsec we might want to change the wiretap version number... svn path=/trunk/; revision=15520
350 lines
8.7 KiB
C
350 lines
8.7 KiB
C
/* capinfos.c
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* Reports capture file information including # of packets, duration, others
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*
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* Copyright 2004 Ian Schorr
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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#include "wtap.h"
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#ifdef NEED_GETOPT_H
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#include "getopt.h"
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#endif
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static gboolean cap_file_type = FALSE; /* Do not report capture type */
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static gboolean cap_packet_count = FALSE; /* Do not produce packet count */
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static gboolean cap_file_size = FALSE; /* Do not report file size */
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static gboolean cap_data_size = FALSE; /* Do not report packet byte size */
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static gboolean cap_duration = FALSE; /* Do not report capture duration */
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static gboolean cap_start_time = FALSE;
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static gboolean cap_end_time = FALSE;
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static gboolean cap_data_rate_byte = FALSE;
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static gboolean cap_data_rate_bit = FALSE;
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static gboolean cap_packet_size = FALSE;
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typedef struct _capture_info {
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const char *filename;
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guint16 file_type;
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gint64 filesize;
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guint64 packet_bytes;
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double start_time;
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double stop_time;
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guint32 packet_count;
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gboolean snap_set;
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guint32 snaplen;
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gboolean drops_known;
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guint32 drop_count;
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double duration;
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double packet_rate;
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double packet_size;
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double data_rate; /* in bytes */
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} capture_info;
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static double
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secs_nsecs(const struct wtap_nstime * nstime)
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{
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return (nstime->nsecs / 1000000000.0) + (double)nstime->secs;
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}
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static void
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print_stats(capture_info *cf_info)
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{
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const gchar *file_type_string;
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time_t start_time_t;
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time_t stop_time_t;
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/* Build printable strings for various stats */
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file_type_string = wtap_file_type_string(cf_info->file_type);
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start_time_t = (time_t)cf_info->start_time;
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stop_time_t = (time_t)cf_info->stop_time;
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if (cap_file_type) printf("File type: %s\n", file_type_string);
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if (cap_packet_count) printf("Number of packets: %u \n", cf_info->packet_count);
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if (cap_file_size) printf("File size: %" PRId64 " bytes\n", cf_info->filesize);
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if (cap_data_size) printf("Data size: %" PRIu64 " bytes\n", cf_info->packet_bytes);
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if (cap_duration) printf("Capture duration: %f seconds\n", cf_info->duration);
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if (cap_start_time) printf("Start time: %s", ctime (&start_time_t));
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if (cap_end_time) printf("End time: %s", ctime (&stop_time_t));
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if (cap_data_rate_byte) printf("Data rate: %.2f bytes/s\n", cf_info->data_rate);
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if (cap_data_rate_bit) printf("Data rate: %.2f bits/s\n", cf_info->data_rate*8);
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if (cap_packet_size) printf("Average packet size: %.2f bytes\n", cf_info->packet_size);
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}
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static int
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process_cap_file(wtap *wth, const char *filename)
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{
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int err;
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gchar *err_info;
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gint64 size;
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long data_offset;
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guint32 packet = 0;
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gint64 bytes = 0;
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const struct wtap_pkthdr *phdr;
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capture_info cf_info;
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double start_time = 0;
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double stop_time = 0;
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double cur_time = 0;
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/* Tally up data that we need to parse through the file to find */
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while (wtap_read(wth, &err, &err_info, &data_offset)) {
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phdr = wtap_phdr(wth);
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cur_time = secs_nsecs(&phdr->ts);
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if(packet==0) {
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start_time = cur_time;
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stop_time = cur_time;
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}
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if (cur_time < start_time) {
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start_time = cur_time;
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}
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if (cur_time > stop_time) {
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stop_time = cur_time;
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}
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bytes+=phdr->len;
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packet++;
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}
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if (err != 0) {
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fprintf(stderr,
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"capinfos: An error occurred after reading %u packets from \"%s\": %s.\n",
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packet, filename, wtap_strerror(err));
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switch (err) {
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case WTAP_ERR_UNSUPPORTED:
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case WTAP_ERR_UNSUPPORTED_ENCAP:
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case WTAP_ERR_BAD_RECORD:
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fprintf(stderr, "(%s)\n", err_info);
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break;
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}
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return 1;
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}
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/* File size */
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size = wtap_file_size(wth, &err);
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if (size == -1) {
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fprintf(stderr,
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"capinfos: Can't get size of \"%s\": %s.\n",
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filename, strerror(err));
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return 1;
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}
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cf_info.filesize = size;
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/* File Type */
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cf_info.file_type = wtap_file_type(wth);
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/* # of packets */
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cf_info.packet_count = packet;
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/* File Times */
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cf_info.start_time = start_time;
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cf_info.stop_time = stop_time;
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cf_info.duration = stop_time-start_time;
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/* Number of packet bytes */
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cf_info.packet_bytes = bytes;
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/* Data rate per second */
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cf_info.data_rate = (double)bytes / (stop_time-start_time);
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/* Avg packet size */
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cf_info.packet_size = (double)bytes/packet;
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printf("File name: %s\n", filename);
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print_stats(&cf_info);
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return 0;
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}
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static void usage(gboolean is_error)
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{
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FILE *output;
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if (!is_error) {
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output = stdout;
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/* XXX - add capinfos header info here */
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}
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else {
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output = stderr;
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}
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fprintf(output, "Usage: capinfos [-t] [-c] [-s] [-d] [-u] [-a] [-e] [-y]\n");
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fprintf(output, " [-i] [-z] [-h] <capfile>\n");
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fprintf(output, " where\t-t display the capture type of <capfile>\n");
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fprintf(output, " \t-c count the number of packets\n");
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fprintf(output, " \t-s display the size of the file \n");
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fprintf(output, " \t-d display the total length of all packets in the file\n");
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fprintf(output, " \t (in bytes)\n");
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fprintf(output, " \t-u display the capture duration (in seconds) \n");
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fprintf(output, " \t-a display the capture start time\n");
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fprintf(output, " \t-e display the capture end time\n");
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fprintf(output, " \t-y display average data rate (in bytes)\n");
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fprintf(output, " \t-i display average data rate (in bits)\n");
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fprintf(output, " \t-z display average packet size (in bytes)\n");
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fprintf(output, " \t-h produces this help listing.\n");
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fprintf(output, "\n \t If no data flags are given, default is to display all statistics\n");
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}
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int main(int argc, char *argv[])
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{
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wtap *wth;
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int err;
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gchar *err_info;
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extern char *optarg;
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extern int optind;
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int opt;
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int status = 0;
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/* Process the options first */
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while ((opt = getopt(argc, argv, "tcsduaeyizvh")) !=-1) {
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switch (opt) {
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case 't':
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cap_file_type = TRUE;
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break;
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case 'c':
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cap_packet_count = TRUE;
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break;
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case 's':
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cap_file_size = TRUE;
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break;
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case 'd':
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cap_data_size = TRUE;
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break;
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case 'u':
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cap_duration = TRUE;
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break;
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case 'a':
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cap_start_time = TRUE;
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break;
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case 'e':
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cap_end_time = TRUE;
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break;
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case 'y':
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cap_data_rate_byte = TRUE;
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break;
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case 'i':
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cap_data_rate_bit = TRUE;
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break;
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case 'z':
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cap_packet_size = TRUE;
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break;
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case 'h':
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usage(FALSE);
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exit(1);
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break;
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case '?': /* Bad flag - print usage message */
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usage(TRUE);
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exit(1);
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break;
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}
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}
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if (optind < 2) {
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/* If no arguments were given, by default display all statistics */
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cap_file_type = TRUE;
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cap_packet_count = TRUE;
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cap_file_size = TRUE;
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cap_data_size = TRUE;
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cap_duration = TRUE;
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cap_start_time = TRUE;
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cap_end_time = TRUE;
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cap_data_rate_byte = TRUE;
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cap_data_rate_bit = TRUE;
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cap_packet_size = TRUE;
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}
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if ((argc - optind) < 1) {
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usage(TRUE);
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exit(1);
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}
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for (opt = optind; opt < argc; opt++) {
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wth = wtap_open_offline(argv[opt], &err, &err_info, FALSE);
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if (!wth) {
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fprintf(stderr, "capinfos: Can't open %s: %s\n", argv[opt],
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wtap_strerror(err));
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switch (err) {
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case WTAP_ERR_UNSUPPORTED:
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case WTAP_ERR_UNSUPPORTED_ENCAP:
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case WTAP_ERR_BAD_RECORD:
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fprintf(stderr, "(%s)\n", err_info);
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g_free(err_info);
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break;
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}
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exit(1);
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}
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if (opt > optind)
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printf("\n");
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status = process_cap_file(wth, argv[opt]);
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wtap_close(wth);
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if (status)
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exit(status);
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}
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return 0;
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}
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