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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-05-24 20:38:01 +0200
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-05-24 20:45:30 +0200
commitd74d67a0e2d3de0ec208ed9b839815a70d84f727 (patch)
tree4abe39734cd5eda97ef3453ed234133c7f16d2ae /src/tools/cbr/cbr.c
parent82622409f7b32b697581837a9392a83342a45ad6 (diff)
downloadouroboros-d74d67a0e2d3de0ec208ed9b839815a70d84f727.tar.gz
ouroboros-d74d67a0e2d3de0ec208ed9b839815a70d84f727.zip
tools, lib: cbr tool for bandwidth testing
The tool sends constant bandwidth traffic between a client and a server. cbr --help for more info. Adds time_utils.h to the library containing useful functions for arithmetic with timespec and timeval structures.
Diffstat (limited to 'src/tools/cbr/cbr.c')
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1 files changed, 124 insertions, 0 deletions
diff --git a/src/tools/cbr/cbr.c b/src/tools/cbr/cbr.c
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+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 SERVER_AP_NAME "cbr-server"
+#define CLIENT_AP_NAME "echo-client"
+
+#define MILLION 1000000
+#define BILLION 1000000000
+
+#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 SDU's 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"
+ " -d --duration Duration for sending (s)\n"
+ " -s, --size SDU size (B)\n"
+ " -r, --rate Rate (b/s)\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 SDU's */
+ long rate = 1000000; /* 1 Mb/s */
+ char * rem;
+
+ 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, "-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 {
+ usage();
+ return 0;
+ }
+ argc--;
+ argv++;
+ }
+
+ if (server) {
+ return server_main();
+ }
+
+ return client_main(duration, size, rate);
+}