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/*
* Copyright (C) 2015-2017 Simon Brummer
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#include <stdio.h>
#include <errno.h>
#include "thread.h"
#include "net/af.h"
#include "net/gnrc/ipv6.h"
#include "net/gnrc/tcp.h"
#define ENABLE_DEBUG (0)
#include "debug.h"
/* Number of possible parallel connections */
#ifndef CONNS
#define CONNS (1)
#endif
/* Amount of data to transmit */
#ifndef NBYTE
#define NBYTE (2048)
#endif
/* Test Pattern used by Client Application */
#ifndef TEST_PATERN_CLI
#define TEST_PATERN_CLI (0xF0)
#endif
/* Test Pattern used by Server Application */
#ifndef TEST_PATERN_SRV
#define TEST_PATERN_SRV (0xA7)
#endif
uint8_t bufs[CONNS][NBYTE];
uint8_t stacks[CONNS][THREAD_STACKSIZE_DEFAULT + THREAD_EXTRA_STACKSIZE_PRINTF];
/* ifconfig shell command */
extern int _netif_config(int argc, char **argv);
/* Server Thread */
void *srv_thread(void *arg);
int main(void)
{
/* Print all configured addresses of the server */
printf("\nStarting server: LOCAL_PORT=%d, CONNS=%d, NBYTE=%d\n\n", LOCAL_PORT, CONNS, NBYTE);
printf("Printing Servers Network Configuration:\n");
_netif_config(0, NULL);
/* Start Threads to handle each connection */
for (int i = 0; i < CONNS; i += 1) {
thread_create((char *) stacks[i], sizeof(stacks[i]), THREAD_PRIORITY_MAIN, 0, srv_thread,
(void *) i, NULL);
}
return 0;
}
void *srv_thread(void *arg)
{
int tid = (int) arg;
uint32_t cycles = 0;
uint32_t cycles_ok = 0;
uint32_t failed_payload_verifications = 0;
/* Transmission control block */
gnrc_tcp_tcb_t tcb;
/* Connection handling code */
printf("Server running: TID=%d\n", tid);
while (1) {
/* Initialize tcb struct */
gnrc_tcp_tcb_init(&tcb);
/* Connect to Peer */
int ret = gnrc_tcp_open_passive(&tcb, AF_INET6, NULL, LOCAL_PORT);
switch (ret) {
case 0:
DEBUG("TID=%d : gnrc_tcp_open_passive() : 0 : ok\n", tid);
break;
case -EISCONN:
printf("TID=%d : gnrc_tcp_open_passive() : -EISCONN\n", tid);
return 0;
case -EINVAL:
printf("TID=%d : gnrc_tcp_open_passive() : -EINVAL\n", tid);
return 0;
case -EAFNOSUPPORT:
printf("TID=%d : gnrc_tcp_open_passive() : -EAFNOSUPPORT\n", tid);
return 0;
case -ENOMEM:
printf("TID=%d : gnrc_tcp_open_passive() : -ENOMEM\n", tid);
return 0;
default:
printf("TID=%d : gnrc_tcp_open_passive() : %d\n", tid, ret);
return 0;
}
/* Receive Data, stop if errors were found */
for (size_t rcvd = 0; rcvd < sizeof(bufs[tid]) && ret >= 0; rcvd += ret) {
ret = gnrc_tcp_recv(&tcb, (void *) (bufs[tid] + rcvd), sizeof(bufs[tid]) - rcvd,
GNRC_TCP_CONNECTION_TIMEOUT_DURATION);
switch (ret) {
case -ENOTCONN:
printf("TID=%d : gnrc_tcp_rcvd() : -ENOTCONN\n", tid);
break;
case -EAGAIN:
printf("TID=%d : gnrc_tcp_rcvd() : -EAGAIN : retry after 10sec\n", tid);
ret = 0;
xtimer_sleep(10);
break;
case -ECONNABORTED:
printf("TID=%d : gnrc_tcp_rcvd() : -ECONNABORTED\n", tid);
break;
case -ECONNRESET:
printf("TID=%d : gnrc_tcp_rcvd() : -ECONNRESET\n", tid);
break;
case -ETIMEDOUT:
printf("TID=%d : gnrc_tcp_rcvd() : -ETIMEDOUT\n", tid);
break;
default:
if (ret >= 0) {
DEBUG("TID=%d : gnrc_tcp_rcvd() : %d Bytes read\n", tid, ret);
}
else {
printf("TID=%d : gnrc_tcp_rcvd() : %d\n", tid, ret);
return 0;
}
}
}
/* Check received pattern */
for (size_t i = 0; i < sizeof(bufs[tid]); ++i) {
if (bufs[tid][i] != TEST_PATERN_CLI) {
printf("TID=%d : Payload verfication failed\n", tid);
failed_payload_verifications += 1;
break;
}
}
/* Fill Buffer with a test pattern */
for (size_t i = 0; i < sizeof(bufs[tid]); ++i) {
bufs[tid][i] = TEST_PATERN_SRV;
}
/* Send Data, stop if errors were found */
for (size_t sent = 0; sent < sizeof(bufs[tid]) && ret >= 0; sent += ret) {
ret = gnrc_tcp_send(&tcb, bufs[tid] + sent, sizeof(bufs[tid]) - sent, 0);
switch (ret) {
case -ENOTCONN:
printf("TID=%d : gnrc_tcp_send() : -ENOTCONN\n", tid);
break;
case -ECONNABORTED:
printf("TID=%d : gnrc_tcp_send() : -ECONNABORTED\n", tid);
break;
case -ETIMEDOUT:
printf("TID=%d : gnrc_tcp_send() : -ETIMEDOUT\n", tid);
break;
case -ECONNRESET:
printf("TID=%d : gnrc_tcp_send() : -ECONNRESET\n", tid);
break;
default:
if (ret >= 0) {
DEBUG("TID=%d : gnrc_tcp_send() : %d Bytes sent.\n", tid, ret);
}
else {
printf("TID=%d : gnrc_tcp_send() : %d\n", tid, ret);
return 0;
}
}
}
/* Close Connection */
gnrc_tcp_close(&tcb);
/* Gather Data */
cycles += 1;
if (ret >= 0) {
cycles_ok += 1;
}
printf("TID=%d : %"PRIi32" test cycles completed. %"PRIi32" ok, %"PRIi32" faulty",
tid, cycles, cycles_ok, cycles - cycles_ok);
printf(", %"PRIi32" failed payload verifications\n", failed_payload_verifications);
}
return 0;
}