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-rw-r--r--src/tools/oping/CMakeLists.txt21
-rw-r--r--src/tools/oping/oping.c176
-rw-r--r--src/tools/oping/oping_client.c234
-rw-r--r--src/tools/oping/oping_server.c162
4 files changed, 593 insertions, 0 deletions
diff --git a/src/tools/oping/CMakeLists.txt b/src/tools/oping/CMakeLists.txt
new file mode 100644
index 00000000..a8fc7d86
--- /dev/null
+++ b/src/tools/oping/CMakeLists.txt
@@ -0,0 +1,21 @@
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+include_directories(${CMAKE_SOURCE_DIR}/include)
+include_directories(${CMAKE_BINARY_DIR}/include)
+
+find_library(LIBM_LIBRARIES m)
+if(NOT LIBM_LIBRARIES)
+ message(FATAL_ERROR "libm not found")
+endif()
+
+set(SOURCE_FILES
+ # Add source files here
+ oping.c
+)
+
+add_executable(oping ${SOURCE_FILES})
+
+target_link_libraries(oping LINK_PUBLIC ${LIBM_LIBRARIES} ouroboros)
+
+install(TARGETS oping RUNTIME DESTINATION usr/bin)
diff --git a/src/tools/oping/oping.c b/src/tools/oping/oping.c
new file mode 100644
index 00000000..cf8dc485
--- /dev/null
+++ b/src/tools/oping/oping.c
@@ -0,0 +1,176 @@
+/*
+ * 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.
+ */
+
+#define _POSIX_C_SOURCE 199506L
+
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#define OPING_BUF_SIZE 1500
+
+#define ECHO_REQUEST 0
+#define ECHO_REPLY 1
+
+#define OPING_MAX_FLOWS 256
+
+struct c {
+ char * s_apn;
+ int interval;
+ int count;
+ int size;
+
+ /* stats */
+ int sent;
+ int rcvd;
+ float rtt_min;
+ float rtt_max;
+ float rtt_avg;
+ float rtt_m2;
+
+ /* needs locking */
+ struct timespec * times;
+ pthread_mutex_t lock;
+
+ pthread_t reader_pt;
+ pthread_t writer_pt;
+} client;
+
+struct s {
+ struct timespec times[OPING_MAX_FLOWS];
+ pthread_mutex_t lock;
+
+ pthread_t cleaner_pt;
+ pthread_t accept_pt;
+ pthread_t server_pt;
+} server;
+
+struct oping_msg {
+ uint32_t type;
+ uint32_t id;
+};
+
+
+#include "oping_client.c"
+#include "oping_server.c"
+
+static void usage()
+{
+ printf("Usage: oping [OPTION]...\n"
+ "Checks liveness between a client and a server\n"
+ "and reports the Round Trip Time (RTT)\n\n"
+ " -l, --listen Run in server mode\n"
+ "\n"
+ " -c, --count Number of packets (default 1000)\n"
+ " -i, --interval Interval (ms, default 1000)\n"
+ " -n, --server-apn Name of the oping server\n"
+ " -s, --size Payload size (b, default 64)\n"
+ " --help Display this help text and exit\n");
+}
+
+int main(int argc, char ** argv)
+{
+ int ret = -1;
+ char * rem = NULL;
+ bool serv = false;
+
+ if (ap_init(argv[0])) {
+ printf("Failed to init AP.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ argc--;
+ argv++;
+
+ client.s_apn = NULL;
+ client.interval = 1000;
+ client.size = 64;
+ client.count = 1000;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "-i") == 0 ||
+ strcmp(*argv, "--interval") == 0) {
+ client.interval = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-n") == 0 ||
+ strcmp(*argv, "--server_apn") == 0) {
+ client.s_apn = *(++argv);
+ --argc;
+ } else if (strcmp(*argv, "-c") == 0 ||
+ strcmp(*argv, "--count") == 0) {
+ client.count = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-s") == 0 ||
+ strcmp(*argv, "--size") == 0) {
+ client.size = strtol(*(++argv), &rem, 10);
+ --argc;
+ } else if (strcmp(*argv, "-l") == 0 ||
+ strcmp(*argv, "--listen") == 0) {
+ serv = true;
+ } else {
+ usage();
+ exit(EXIT_SUCCESS);
+ }
+ argc--;
+ argv++;
+ }
+
+ if (serv) {
+ ret = server_main();
+ } else {
+ if (client.s_apn == NULL) {
+ printf("No server specified.\n");
+ usage();
+ exit(EXIT_SUCCESS);
+ }
+ if (client.interval > 10000) {
+ printf("Ping interval truncated to 10s.\n");
+ client.interval = 10000;
+ }
+ if (client.size > OPING_BUF_SIZE) {
+ printf("Packet size truncated to 1500 bytes.\n");
+ client.size = 1500;
+ }
+
+ if (client.size < 2) {
+ printf("Packet size set to 64 bytes.\n");
+ client.size = 64;
+ }
+
+ if (client.count > 1000000) {
+ printf("Count truncated to 1 million SDUs.\n");
+ client.count = 1000000;
+ }
+
+ ret = client_main();
+ }
+
+ ap_fini();
+
+ if (ret < 0)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
+}
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;
+}
diff --git a/src/tools/oping/oping_server.c b/src/tools/oping/oping_server.c
new file mode 100644
index 00000000..eb0b511b
--- /dev/null
+++ b/src/tools/oping/oping_server.c
@@ -0,0 +1,162 @@
+/*
+ * 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>
+
+#ifdef __FreeBSD__
+#define __XSI_VISIBLE 500
+#endif
+
+#include <stdlib.h>
+#include <signal.h>
+#include <arpa/inet.h>
+
+void shutdown_server(int signo, siginfo_t * info, void * c)
+{
+ switch(signo) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ pthread_cancel(server.server_pt);
+ pthread_cancel(server.accept_pt);
+ pthread_cancel(server.cleaner_pt);
+ default:
+ return;
+ }
+}
+
+void * cleaner_thread(void * o)
+{
+ int i = 0;
+ struct timespec now = {0, 0};
+ int deadline_ms = 10000;
+
+ while (true) {
+ clock_gettime(CLOCK_REALTIME, &now);
+ pthread_mutex_lock(&server.lock);
+ for (i = 0; i < OPING_MAX_FLOWS; ++i)
+ if (ts_diff_ms(&server.times[i], &now) > deadline_ms)
+ flow_dealloc(i);
+
+ pthread_mutex_unlock(&server.lock);
+ sleep(1);
+ }
+}
+
+void * server_thread(void *o)
+{
+ char buf[OPING_BUF_SIZE];
+ int msg_len = 0;
+ struct oping_msg * msg = (struct oping_msg *) buf;
+ struct timespec now = {0, 0};
+
+ while (true) {
+
+ int fd = flow_select(NULL);
+ while (!((msg_len = flow_read(fd, buf, OPING_BUF_SIZE)) < 0)) {
+ if (msg_len < 0)
+ continue;
+
+ if (ntohl(msg->type) != ECHO_REQUEST) {
+ printf("Invalid message received.\n");
+ continue;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&server.lock);
+ server.times[fd] = now;
+ pthread_mutex_unlock(&server.lock);
+
+ msg->type = htonl((uint32_t) ECHO_REPLY);
+
+ if (flow_write(fd, buf, msg_len) < 0) {
+ printf("Error writing to flow (fd %d).\n", fd);
+ flow_dealloc(fd);
+ }
+ }
+ }
+
+ return (void *) 0;
+}
+
+void * accept_thread(void * o)
+{
+ int fd = 0;
+ struct timespec now = {0, 0};
+
+ printf("Ouroboros ping server started.\n");
+
+ while (true) {
+ fd = flow_accept(NULL);
+ if (fd < 0) {
+ printf("Failed to accept flow.\n");
+ break;
+ }
+
+ printf("New flow %d.\n", fd);
+
+ if (flow_alloc_resp(fd, 0)) {
+ printf("Failed to give an allocate response.\n");
+ flow_dealloc(fd);
+ continue;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ pthread_mutex_lock(&server.lock);
+ server.times[fd] = now;
+ pthread_mutex_unlock(&server.lock);
+
+ flow_cntl(fd, FLOW_F_SETFL, FLOW_O_NONBLOCK);
+ }
+
+ return (void *) 0;
+}
+
+int server_main()
+{
+ struct sigaction sig_act;
+
+ memset(&sig_act, 0, sizeof sig_act);
+ sig_act.sa_sigaction = &shutdown_server;
+ 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_create(&server.cleaner_pt, NULL, cleaner_thread, NULL);
+ pthread_create(&server.accept_pt, NULL, accept_thread, NULL);
+ pthread_create(&server.server_pt, NULL, server_thread, NULL);
+
+ pthread_join(server.server_pt, NULL);
+ pthread_join(server.accept_pt, NULL);
+ pthread_join(server.cleaner_pt, NULL);
+
+ return 0;
+}
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