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-rw-r--r--src/tools/cbr/CMakeLists.txt16
-rw-r--r--src/tools/cbr/cbr.c124
-rw-r--r--src/tools/cbr/cbr_client.c97
-rw-r--r--src/tools/cbr/cbr_server.c174
4 files changed, 411 insertions, 0 deletions
diff --git a/src/tools/cbr/CMakeLists.txt b/src/tools/cbr/CMakeLists.txt
new file mode 100644
index 00000000..7c3f93f8
--- /dev/null
+++ b/src/tools/cbr/CMakeLists.txt
@@ -0,0 +1,16 @@
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+include_directories(${CMAKE_SOURCE_DIR}/include)
+include_directories(${CMAKE_BINARY_DIR}/include)
+
+set(SOURCE_FILES
+ # Add source files here
+ cbr.c
+)
+
+add_executable(cbr ${SOURCE_FILES})
+
+target_link_libraries(cbr LINK_PUBLIC ouroboros)
+
+install(TARGETS cbr RUNTIME DESTINATION bin)
diff --git a/src/tools/cbr/cbr.c b/src/tools/cbr/cbr.c
new file mode 100644
index 00000000..2317cd62
--- /dev/null
+++ b/src/tools/cbr/cbr.c
@@ -0,0 +1,124 @@
+/*
+ * 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);
+}
diff --git a/src/tools/cbr/cbr_client.c b/src/tools/cbr/cbr_client.c
new file mode 100644
index 00000000..7b8e8b3f
--- /dev/null
+++ b/src/tools/cbr/cbr_client.c
@@ -0,0 +1,97 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * A simple CBR 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.
+ */
+
+#include <ouroboros/dev.h>
+#include <ouroboros/time_utils.h>
+
+int client_main(int duration, int size, long rate)
+{
+ int fd = 0;
+ int result = 0;
+ bool stop = false;
+ char buf[size];
+ long seqnr = 0;
+ long long gap = size * 8 * (BILLION / rate); /* ns */
+
+ struct timespec start;
+ struct timespec end;
+ struct timespec interval = {(gap / BILLION), gap % BILLION};
+ int ms;
+
+ if (ap_init(CLIENT_AP_NAME)) {
+ printf("Failed to init AP.\n");
+ return -1;
+ }
+
+ printf("Client started, duration %d, rate %lu b/s, size %d B.\n",
+ duration, rate, size);
+
+ fd = flow_alloc(SERVER_AP_NAME, NULL, NULL);
+ if (fd < 0) {
+ printf("Failed to allocate flow.\n");
+ ap_fini();
+ return -1;
+ }
+
+ result = flow_alloc_res(fd);
+ if (result < 0) {
+ printf("Flow allocation refused.\n");
+ flow_dealloc(fd);
+ ap_fini();
+ return -1;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &start);
+ while (!stop) {
+ memcpy(buf, &seqnr, sizeof(seqnr));
+
+ if (flow_write(fd, buf, size) == -1) {
+ printf("Failed to write SDU.\n");
+ stop = true;
+ }
+
+ nanosleep(&interval, NULL);
+
+ seqnr++;
+
+ clock_gettime(CLOCK_REALTIME, &end);
+
+ if (duration != 0
+ && ts_diff_us(&start, &end) / MILLION >= (long) duration)
+ stop = 1;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &end);
+
+ ms = ts_diff_ms(&start, &end);
+
+ printf("sent statistics: "
+ "%9ld SDUs, %12ld bytes in %9d ms, %4.4f Mb/s\n",
+ seqnr, seqnr * size, ms, (seqnr * size * 8.0)/(ms * 1000));
+
+ flow_dealloc(fd);
+
+ ap_fini();
+
+ return 0;
+}
diff --git a/src/tools/cbr/cbr_server.c b/src/tools/cbr/cbr_server.c
new file mode 100644
index 00000000..14791bd4
--- /dev/null
+++ b/src/tools/cbr/cbr_server.c
@@ -0,0 +1,174 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * A simple CBR 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.
+ */
+
+#include <stdbool.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include <ouroboros/dev.h>
+#include <ouroboros/time_utils.h>
+
+#define DIF_NAME "*"
+
+
+void shutdown_server(int signo)
+{
+ char * dif = DIF_NAME;
+
+ if (ap_unreg(&dif, 1)) {
+ printf("Failed to unregister application.\n");
+ ap_fini();
+ exit(EXIT_FAILURE);
+ }
+
+ ap_fini();
+ exit(EXIT_SUCCESS);
+}
+
+void * handleflow(void * o)
+{
+ ssize_t count = 0;
+ int fd = *((int *) o);
+ char buf[BUF_SIZE];
+
+ struct timespec now;
+ struct timespec alive;
+ struct timespec intv = {server_settings.interval, 0};
+
+ struct timespec iv_start;
+ struct timespec iv_end;
+
+ bool stop = false;
+
+ long sdus = 0;
+ long sdus_intv = 0;
+ long bytes_read = 0;
+ long bytes_read_intv = 0;
+
+
+ clock_gettime(CLOCK_REALTIME, &iv_start);
+ alive = iv_start;
+ ts_add(&iv_start, &intv, &iv_end);
+
+ flow_cntl(fd, FLOW_F_SETFL, FLOW_O_NONBLOCK);
+
+ while (!stop) {
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ count = flow_read(fd, buf, BUF_SIZE);
+
+ if (count > 0) {
+ clock_gettime(CLOCK_REALTIME, &alive);
+ sdus++;
+ bytes_read += count;
+ }
+
+ if (ts_diff_us(&alive, &now)
+ > server_settings.timeout * MILLION) {
+ printf("Test on flow %d timed out\n", fd);
+ stop = true;
+ }
+
+ if (stop || ts_diff_ms(&now, &iv_end) < 0) {
+ long us = ts_diff_us(&iv_start, &now);
+ printf("Flow %4d: %9ld SDUs (%12ld bytes) in %9ld ms"
+ " => %9.4f p/s, %9.4f Mb/s\n",
+ fd,
+ sdus-sdus_intv,
+ bytes_read-bytes_read_intv,
+ us / 1000,
+ ((sdus-sdus_intv) / (float) us) * MILLION,
+ 8 * (bytes_read-bytes_read_intv)
+ / (float)(us));
+ iv_start=iv_end;
+ sdus_intv = sdus;
+ bytes_read_intv = bytes_read;
+ ts_add(&iv_start, &intv, &iv_end);
+ }
+ }
+
+ return 0;
+}
+
+int server_main()
+{
+ int server_fd = 0;
+ int client_fd = 0;
+ char * dif = DIF_NAME;
+ char * client_name = NULL;
+ int i = 0;
+ pthread_t * threads = malloc(sizeof(*threads) * 10);
+ if (threads == NULL)
+ exit(1);
+
+ printf("Server started, interval is %ld s, timeout is %ld s.\n",
+ server_settings.interval, server_settings.timeout);
+
+ /* Manual cleanup is required for now */
+ if (signal(SIGINT, shutdown_server) == SIG_ERR) {
+ printf("Can't install signal handler.\n");
+ return -1;
+ }
+
+ if (ap_init(SERVER_AP_NAME)) {
+ printf("Failed to init AP.\n");
+ return -1;
+ }
+
+ server_fd = ap_reg(&dif, 1);
+ if (server_fd < 0) {
+ printf("Failed to register application.\n");
+ ap_fini();
+ return -1;
+ }
+
+ while (true) {
+ client_fd = flow_accept(server_fd,
+ &client_name, NULL);
+ if (client_fd < 0) {
+ printf("Failed to accept flow.\n");
+ break;
+ }
+
+ printf("New flow from %s.\n", client_name);
+
+ if (flow_alloc_resp(client_fd, 0)) {
+ printf("Failed to give an allocate response.\n");
+ flow_dealloc(client_fd);
+ continue;
+ }
+
+ if (i < 10) {
+ pthread_create(&threads[i++],
+ NULL,
+ handleflow,
+ &client_fd);
+ }
+ }
+
+ ap_fini();
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 23:40:42 +0000