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/*
* Ouroboros - Copyright (C) 2016 - 2017
*
* CBR traffic generator
*
* Dimitri Staessens <dimitri.staessens@intec.ugent.be>
* Sander Vrijders <sander.vrijders@intec.ugent.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define _POSIX_C_SOURCE 199506L
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <limits.h>
#include <time.h>
#include <stdbool.h>
#define BUF_SIZE 1500
#include "cbr_client.c"
struct s {
long interval;
long timeout;
} server_settings;
#include "cbr_server.c"
static void usage(void)
{
printf("Usage: cbr [OPTION]...\n"
"Sends SDUs from client to server at a constant bit rate.\n\n"
" -l, --listen Run in server mode\n"
"\n"
"Server options:\n"
" -i, --interval Server report interval (s)\n"
" -t, --timeout Server timeout interval (s)\n"
"\n"
"Client options:\n"
" -n, --server_apn Specify the name of the server.\n"
" -d, --duration Duration for sending (s)\n"
" -f, --flood Send SDUs as fast as possible\n"
" -s, --size SDU size (B)\n"
" -r, --rate Rate (b/s)\n"
" --sleep Sleep in between sending SDUs\n"
"\n\n"
" --help Display this help text and exit\n");
}
int main(int argc, char ** argv)
{
int duration = 60; /* One minute test */
int size = 1000; /* 1000 byte SDUs */
long rate = 1000000; /* 1 Mb/s */
bool flood = false;
bool sleep = false;
int ret = 0;
char * rem = NULL;
char * s_apn = NULL;
char ** argv_dup = argv;
bool server = false;
server_settings.interval = 1; /* One second reporting interval */
server_settings.timeout = 1;
argc--;
argv++;
while (argc > 0) {
if (strcmp(*argv, "-i") == 0 ||
strcmp(*argv, "--interval") == 0) {
server_settings.interval = strtol(*(++argv), &rem, 10);
--argc;
} else if (strcmp(*argv, "-t") == 0 ||
strcmp(*argv, "--timeout") == 0) {
server_settings.timeout = strtol(*(++argv), &rem, 10);
--argc;
} else if (strcmp(*argv, "-n") == 0 ||
strcmp(*argv, "--server_apn") == 0) {
s_apn = *(++argv);
--argc;
} else if (strcmp(*argv, "-d") == 0 ||
strcmp(*argv, "--duration") == 0) {
duration = strtol(*(++argv), &rem, 10);
--argc;
} else if (strcmp(*argv, "-s") == 0 ||
strcmp(*argv, "--size") == 0) {
size = strtol(*(++argv), &rem, 10);
--argc;
} else if (strcmp(*argv, "-r") == 0 ||
strcmp(*argv, "--rate") == 0) {
rate = strtol(*(++argv), &rem, 10);
if (*rem == 'k')
rate *= 1000;
if (*rem == 'M')
rate *= MILLION;
if (*rem == 'G')
rate *= BILLION;
--argc;
} else if (strcmp(*argv, "-l") == 0 ||
strcmp(*argv, "--listen") == 0) {
server = true;
} else if (strcmp(*argv, "-f") == 0 ||
strcmp(*argv, "--flood") == 0) {
flood = true;
} else if (strcmp(*argv, "--sleep") == 0) {
sleep = true;
} else {
usage();
return 0;
}
argc--;
argv++;
}
if (server) {
if (ap_init(argv_dup[0]) < 0) {
printf("Failed to init.\n");
exit(EXIT_FAILURE);
}
ret = server_main();
} else {
if (ap_init(NULL) < 0) {
printf("Failed to init.\n");
exit(EXIT_FAILURE);
}
if (s_apn == NULL) {
printf("No server specified.\n");
usage();
return 0;
}
ret = client_main(s_apn, duration, size, rate, flood, sleep);
}
ap_fini();
return ret;
}
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