tools: Add a ping application

Ouoroboros ping application mimics the GNU ping application.
do "oping --help" for options.

1 files changed, 176 insertions, 0 deletions

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);
+}