source: trunk/tools/tracertstats/tracertstats.c @ 498

/*
 * This file is part of libtrace
 *
 * Copyright (c) 2004 The University of Waikato, Hamilton, New Zealand.
 * Authors: Daniel Lawson 
 *          Perry Lorier 
 *          
 * All rights reserved.
 *
 * This code has been developed by the University of Waikato WAND 
 * research group. For further information please see http://www.wand.net.nz/
 *
 * libtrace is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * libtrace is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with libtrace; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id$
 *
 */

// 
// This program takes a series of traces and bpf filters and outputs how many
// bytes/packets every time interval

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <time.h>

#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/tcp.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <getopt.h>
#include <inttypes.h>

#include "libtrace.h"
#include "output.h"

struct libtrace_t *trace;
char *output_format=NULL;

struct filter_t {
        char *expr;
        struct libtrace_filter_t *filter;
        uint64_t count;
        uint64_t bytes;
} *filters = NULL;
int filter_count=0;
uint64_t totcount;
uint64_t totbytes;

uint64_t packet_count=UINT64_MAX;
uint64_t packet_interval=UINT64_MAX;


struct output_data_t *output;

void report_results(double ts,uint64_t count,uint64_t bytes)
{
        int i=0;
        output_set_data_time(output,0,ts);
        output_set_data_int(output,1,count);
        output_set_data_int(output,2,bytes);
        for(i=0;i<filter_count;++i) {
                output_set_data_int(output,i*2+3,filters[i].count);
                output_set_data_int(output,i*2+4,filters[i].bytes);
                filters[i].count=filters[i].bytes=0;
        }
        output_flush_row(output);
}

/* Process a trace, counting packets that match filter(s) */
void run_trace(char *uri) 
{
        struct libtrace_packet_t packet;
        int i;
        uint64_t count = 0;
        uint64_t bytes = 0;
        double last_ts = 0;
        double ts = 0;

        output=output_init(uri,output_format?:"txt");
        output_add_column(output,"unix_time");
        output_add_column(output,"packets");
        output_add_column(output,"bytes");
        for(i=0;i<filter_count;++i) {
                char buff[1024];
                snprintf(buff,sizeof(buff),"%s packets",filters[i].expr);
                output_add_column(output,buff);
                snprintf(buff,sizeof(buff),"%s bytes",filters[i].expr);
                output_add_column(output,buff);
        }
        output_flush_headings(output);


        trace = trace_create(uri);

        for (;;) {
                int psize;
                if ((psize = trace_read_packet(trace, &packet)) <1) {
                        break;
                }
                ts = trace_get_seconds(&packet);

                for(i=0;i<filter_count;++i) {
                        if(trace_bpf_filter(filters[i].filter,&packet)) {
                                ++filters[i].count;
                                filters[i].bytes+=trace_get_wire_length(&packet);
                        }
                }

                ++count;
                bytes+=trace_get_wire_length(&packet);

                if (packet_interval!=UINT64_MAX
                  &&(last_ts==0 || last_ts<ts)) {
                        if (last_ts==0)
                                last_ts=ts;
                        report_results(ts,count,bytes);
                        count=0;
                        bytes=0;
                        last_ts+=packet_interval;
                }

                if (count > packet_count) {
                        report_results(ts,count,bytes);
                        count=0;
                        bytes=0;
                }
        }
        report_results(ts,count,bytes);

        trace_destroy(trace);
        output_destroy(output);
}

void usage(char *argv0)
{
        fprintf(stderr,"Usage: %s [--interval|-i seconds ] [--count|-c packets] [--output-format|-o txt|csv|html|png] [--filter|-f bpf ]... libtraceuri...\n",argv0);
}

int main(int argc, char *argv[]) {

        int i;

        while(1) {
                int option_index;
                struct option long_options[] = {
                        { "filter",     1, 0, 'f' },
                        { "interval",   1, 0, 'i' },
                        { "count",      1, 0, 'c' },
                        { "output-format",1,0,'o' },
                        { NULL,         0, 0, 0   },
                };

                int c=getopt_long(argc, argv, "c:f:i:o:",
                                long_options, &option_index);

                if (c==-1)
                        break;

                switch (c) {
                        case 'f': 
                                ++filter_count;
                                filters=realloc(filters,filter_count*sizeof(struct filter_t));
                                filters[filter_count-1].expr=strdup(optarg);
                                filters[filter_count-1].filter=trace_bpf_setfilter(optarg);
                                filters[filter_count-1].count=0;
                                filters[filter_count-1].bytes=0;
                                break;
                        case 'i':
                                packet_interval=atoi(optarg);
                                break;
                        case 'c':
                                packet_interval=atoi(optarg);
                                break;
                        case 'o':
                                if (output_format) free(output_format);
                                output_format=strdup(optarg);
                                break;
                        default:
                                fprintf(stderr,"Unknown option: %c\n",c);
                                usage(argv[0]);
                                return 1;
                }
        }

        if (packet_count == UINT64_MAX && packet_interval == UINT64_MAX) {
                packet_interval = 300; /* every 5 minutes */
        }

        for(i=optind;i<argc;++i) {
                run_trace(argv[i]);
        }

        return 0;
}