/* * 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); }