source: tools/tracestats/tracestats_single.c

/*
 *
 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
 * All rights reserved.
 *
 * This file is part of libtrace.
 *
 * 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 Lesser General Public License as published by
 * the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 */

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

#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 <signal.h>

#include "libtrace.h"
#include "lt_inttypes.h"

struct libtrace_t *trace;

static volatile int done=0;

static void cleanup_signal(int signal)
{
        (void)signal;
        done=1;
        trace_interrupt();
}

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;

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

        fprintf(stderr,"%s:\n",uri);

        trace = trace_create(uri);

        if (trace_is_err(trace)) {
                trace_perror(trace,"Failed to create trace");
                return;
        }

        if (trace_start(trace)==-1) {
                trace_perror(trace,"Failed to start trace");
                return;
        }


        for (;;) {
                int psize;
                int wlen;
                if ((psize = trace_read_packet(trace, packet)) <1) {
                        break;
                }
                
                if (done)
                        break;
                wlen = trace_get_wire_length(packet);

                for(i=0;i<filter_count;++i) {
                        if (filters[i].filter == NULL)
                                continue;
                        if(trace_apply_filter(filters[i].filter,packet) > 0) {
                                ++filters[i].count;
                                filters[i].bytes+=wlen;
                        }
                        if (trace_is_err(trace)) {
                                trace_perror(trace, "trace_apply_filter");
                                fprintf(stderr, "Removing filter from filterlist\n");
                                filters[i].filter = NULL;
                        }
                }

                ++count;
                bytes+=wlen;
        }
        trace_destroy_packet(packet);

        stats = trace_get_statistics(trace, NULL);

        printf("%-30s\t%12s\t%12s\t%7s\n","filter","count","bytes","%");
        for(i=0;i<filter_count;++i) {
                printf("%30s:\t%12"PRIu64"\t%12"PRIu64"\t%7.03f\n",filters[i].expr,filters[i].count,filters[i].bytes,filters[i].count*100.0/count);
                filters[i].bytes=0;
                filters[i].count=0;
        }
        if (stats->received_valid)
                fprintf(stderr,"%30s:\t%12" PRIu64"\n", 
                                "Input packets", stats->received);
        if (stats->filtered_valid)
                fprintf(stderr,"%30s:\t%12" PRIu64"\n", 
                                "Filtered packets", stats->filtered);
        if (stats->dropped_valid)
                fprintf(stderr,"%30s:\t%12" PRIu64"\n",
                                "Dropped packets",stats->dropped);
        if (stats->accepted_valid)
                fprintf(stderr,"%30s:\t%12" PRIu64 "\n",
                                "Accepted packets", stats->accepted);
        if (stats->errors_valid)
                fprintf(stderr,"%30s:\t%12" PRIu64 "\n",
                                "Erred packets", stats->errors);
        printf("%30s:\t%12"PRIu64"\t%12" PRIu64 "\n","Total",count,bytes);
        totcount+=count;
        totbytes+=bytes;

        if (trace_is_err(trace))
                trace_perror(trace,"Processing trace");

        trace_destroy(trace);
}

static void usage(char *argv0)
{
        fprintf(stderr,"Usage: %s [-H|--libtrace-help] [--filter|-f bpf ]... libtraceuri...\n",argv0);
}

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

        int i;
        struct sigaction sigact;

        while(1) {
                int option_index;
                struct option long_options[] = {
                        { "filter",        1, 0, 'f' },
                        { "libtrace-help", 0, 0, 'H' },
                        { NULL,            0, 0, 0   },
                };

                int c=getopt_long(argc, argv, "f:H",
                                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_create_filter(optarg);
                                filters[filter_count-1].count=0;
                                filters[filter_count-1].bytes=0;
                                break;
                        case 'H':
                                trace_help();
                                exit(1);
                                break;
                        default:
                                fprintf(stderr,"Unknown option: %c\n",c);
                                usage(argv[0]);
                                return 1;
                }
        }

        sigact.sa_handler = cleanup_signal;
        sigemptyset(&sigact.sa_mask);
        sigact.sa_flags = SA_RESTART;

        sigaction(SIGINT, &sigact, NULL);
        sigaction(SIGTERM, &sigact, NULL);

        for(i=optind;i<argc;++i) {
                run_trace(argv[i]);
        }
        if (optind+1<argc) {
                printf("Grand total:\n");
                printf("%30s:\t%12"PRIu64"\t%12" PRIu64 "\n","Total",totcount,totbytes);
        }


        return 0;
}