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/*
* Ouroboros - Copyright (C) 2016 - 2024
*
* CBR traffic generator
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _POSIX_C_SOURCE 199506L
#define __XSI_VISIBLE 500
#include "time_utils.h"
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <limits.h>
#include <time.h>
#include <stdbool.h>
#define BUF_SIZE 524288L
#include "ocbr_client.c"
struct s {
long interval;
long timeout;
} server_settings;
#include "ocbr_server.c"
static void usage(void)
{
printf("Usage: cbr [OPTION]...\n"
"Sends packets 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 packets as fast as possible\n"
" -s, --size packet size (B, max %ld B)\n"
" -r, --rate Rate (b/s)\n"
" --sleep Sleep in between sending packets\n"
" --spin Spin CPU between sending packets\n"
"\n\n"
" --help Display this help text and exit\n",
BUF_SIZE);
}
int main(int argc, char ** argv)
{
int duration = 60; /* One minute test */
int size = 1000; /* 1000 byte packets */
long rate = 1000000; /* 1 Mb/s */
bool flood = false;
bool sleep = true;
int ret = 0;
char * rem = NULL;
char * s_apn = NULL;
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 if (strcmp(*argv, "--spin") == 0) {
sleep = false;
} else {
usage();
return 0;
}
argc--;
argv++;
}
if (server) {
ret = server_main();
} else {
if (s_apn == NULL) {
printf("No server specified.\n");
usage();
return 1;
}
if (size > BUF_SIZE) {
printf("Maximum size: %ld.\n", BUF_SIZE);
return 1;
}
if (size < 0) {
printf("Size overflow.\n");
return 1;
}
if (rate <= 0) {
printf("Invalid rate.\n");
return 1;
}
ret = client_main(s_apn, duration, size, rate, flood, sleep);
}
return ret;
}
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