/* * Ouroboros - Copyright (C) 2016 - 2017 * * CBR traffic generator * * Dimitri Staessens <dimitri.staessens@ugent.be> * Sander Vrijders <sander.vrijders@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 #define __XSI_VISIBLE 500 #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; }