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-rw-r--r--src/tools/oping/oping_client.c234
1 files changed, 234 insertions, 0 deletions
diff --git a/src/tools/oping/oping_client.c b/src/tools/oping/oping_client.c
new file mode 100644
index 00000000..23a57549
--- /dev/null
+++ b/src/tools/oping/oping_client.c
@@ -0,0 +1,234 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Ouroboros ping application
+ *
+ * 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/errno.h>
+#include <ouroboros/time_utils.h>
+
+#ifdef __FreeBSD__
+#define __XSI_VISIBLE 500
+#endif
+
+#include <signal.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+#include <math.h>
+#include <float.h>
+
+void shutdown_client(int signo, siginfo_t * info, void * c)
+{
+ switch(signo) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ pthread_cancel(client.reader_pt);
+ pthread_cancel(client.writer_pt);
+ default:
+ return;
+ }
+}
+
+void * reader(void * o)
+{
+ struct timespec timeout = {2, 0};
+ struct timespec now = {0, 0};
+
+ struct oping_msg * msg;
+ char buf[OPING_BUF_SIZE];
+ int fd = 0;
+ int msg_len = 0;
+ float ms = 0;
+ float d = 0;
+
+ msg = (struct oping_msg *) buf;
+
+ /* FIXME: use flow timeout option once we have it */
+ while(client.rcvd != client.count &&
+ (fd = flow_select(&timeout)) != -ETIMEDOUT) {
+ flow_cntl(fd, FLOW_F_SETFL, FLOW_O_NONBLOCK);
+ while (!((msg_len = flow_read(fd, buf, OPING_BUF_SIZE)) < 0)) {
+ if (msg_len < 0)
+ continue;
+
+ if (ntohl(msg->type) != ECHO_REPLY) {
+ printf("Invalid message received (%d).\n",
+ msg->type);
+ continue;
+ }
+
+ if (ntohl(msg->id) >= client.count) {
+ printf("Invalid id.\n");
+ continue;
+ }
+
+ ++client.rcvd;
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&client.lock);
+ ms = ts_diff_us(&client.times[ntohl(msg->id)], &now)
+ /1000.0;
+ pthread_mutex_unlock(&client.lock);
+
+ printf("%d bytes from %s: seq=%d time=%.3f ms\n",
+ msg_len,
+ client.s_apn,
+ ntohl(msg->id),
+ ms);
+
+ if (ms < client.rtt_min)
+ client.rtt_min = ms;
+ if (ms > client.rtt_max)
+ client.rtt_max = ms;
+
+ d = (ms - client.rtt_avg);
+ client.rtt_avg += d / (float) client.rcvd;
+ client.rtt_m2 += d * (ms - client.rtt_avg);
+ }
+ }
+
+ return (void *) 0;
+}
+
+void * writer(void * o)
+{
+ int * fdp = (int *) o;
+ struct timespec now;
+ struct timespec wait = {client.interval / 1000, client.interval % 1000};
+ struct oping_msg * msg;
+ char * buf = malloc(client.size);
+
+ if (buf == NULL)
+ return (void *) -ENOMEM;
+
+ if (fdp == NULL)
+ return (void *) -EINVAL;
+
+ memset(buf, 0, client.size);
+
+ msg = (struct oping_msg *) buf;
+
+ printf("Pinging %s with %d bytes of data:\n\n",
+ client.s_apn, client.size);
+
+ while (client.sent < client.count) {
+ nanosleep(&wait, NULL);
+ msg->id = htonl(client.sent);
+ if (flow_write(*fdp, buf, client.size) == -1) {
+ printf("Failed to send SDU.\n");
+ flow_dealloc(*fdp);
+ return (void *) -1;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&client.lock);
+ client.times[client.sent++] = now;
+ pthread_mutex_unlock(&client.lock);
+ }
+
+ return (void *) 0;
+}
+
+int client_main()
+{
+ struct sigaction sig_act;
+
+ struct timespec tic;
+ struct timespec toc;
+
+ int fd = flow_alloc(client.s_apn, NULL, NULL);
+ if (fd < 0) {
+ printf("Failed to allocate flow.\n");
+ return -1;
+ }
+
+ if (flow_alloc_res(fd)) {
+ printf("Flow allocation refused.\n");
+ flow_dealloc(fd);
+ return -1;
+ }
+
+ memset(&sig_act, 0, sizeof sig_act);
+ sig_act.sa_sigaction = &shutdown_client;
+ sig_act.sa_flags = 0;
+
+ if (sigaction(SIGINT, &sig_act, NULL) ||
+ sigaction(SIGTERM, &sig_act, NULL) ||
+ sigaction(SIGHUP, &sig_act, NULL) ||
+ sigaction(SIGPIPE, &sig_act, NULL)) {
+ printf("Failed to install sighandler.\n");
+ return -1;
+ }
+
+ pthread_mutex_init(&client.lock, NULL);
+ pthread_mutex_lock(&client.lock);
+ client.sent = 0;
+ client.rcvd = 0;
+ client.rtt_min = FLT_MAX;
+ client.rtt_max = 0;
+ client.rtt_avg = 0;
+ client.rtt_m2 = 0;
+ client.times = malloc(sizeof(struct timespec) * client.count);
+ if (client.times == NULL) {
+ pthread_mutex_unlock(&client.lock);
+ return -ENOMEM;
+ }
+
+ pthread_mutex_unlock(&client.lock);
+
+ clock_gettime(CLOCK_REALTIME, &tic);
+
+ pthread_create(&client.reader_pt, NULL, reader, NULL);
+ pthread_create(&client.writer_pt, NULL, writer, &fd);
+
+ pthread_join(client.writer_pt, NULL);
+ pthread_join(client.reader_pt, NULL);
+
+ clock_gettime(CLOCK_REALTIME, &toc);
+
+ printf("\n");
+ printf("--- %s ping statistics ---\n", client.s_apn);
+ printf("%d SDU's transmitted, ", client.sent);
+ printf("%d received, ", client.rcvd);
+ printf("%d%% packet loss, ", 100 - ((100 * client.rcvd) / client.sent));
+ printf("time: %.3f ms\n", ts_diff_us(&tic, &toc) / 1000.0);
+ printf("rtt min/avg/max/mdev = %.3f/%.3f/%.3f/",
+ client.rtt_min,
+ client.rtt_avg,
+ client.rtt_max);
+ client.rcvd > 1 ?
+ printf("%.3f ms\n",
+ sqrt(client.rtt_m2 / (float) (client.rcvd - 1))) :
+ printf("Nan ms\n");
+
+ pthread_mutex_lock(&client.lock);
+ free(client.times);
+ pthread_mutex_unlock(&client.lock);
+ pthread_mutex_destroy(&client.lock);
+
+ flow_dealloc(fd);
+
+ return 0;
+}