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https://github.com/RIOT-OS/RIOT.git
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105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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* Copyright (C) 2021 ML!PA Consulting GmbH
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup examples
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* @{
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*
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* @file
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* @brief Example application for demonstrating the RIOT telnet server
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*
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* @author Benjamin Valentin <benjamin.valentin@ml-pa.com>
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*
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* @}
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*/
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#include <stdio.h>
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#include "net/ipv6/addr.h"
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#include "net/gnrc.h"
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#include "net/gnrc/netif.h"
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#include "net/telnet.h"
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#include "shell.h"
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#include "msg.h"
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#define MAIN_QUEUE_SIZE (8)
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static msg_t _main_msg_queue[MAIN_QUEUE_SIZE];
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static void _print_addr(void)
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{
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gnrc_netif_t *netif = NULL;
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while ((netif = gnrc_netif_iter(netif))) {
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ipv6_addr_t ipv6_addrs[CONFIG_GNRC_NETIF_IPV6_ADDRS_NUMOF];
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int res = gnrc_netapi_get(netif->pid, NETOPT_IPV6_ADDR, 0, ipv6_addrs,
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sizeof(ipv6_addrs));
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if (res < 0) {
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continue;
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}
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for (unsigned i = 0; i < (unsigned)(res / sizeof(ipv6_addr_t)); i++) {
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char ipv6_addr[IPV6_ADDR_MAX_STR_LEN];
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ipv6_addr_to_str(ipv6_addr, &ipv6_addrs[i], IPV6_ADDR_MAX_STR_LEN);
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printf("My address is %s\n", ipv6_addr);
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}
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}
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}
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static void _print_motd(void)
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{
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puts("RIOT telnet example application");
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puts("╔═══════════════════════════════════════════════════╗");
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puts("║telnet is entirely unencrypted and unauthenticated.║");
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puts("║Do not use this on public networks. ║");
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puts("╚═══════════════════════════════════════════════════╝");
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}
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void telnet_cb_pre_connected(sock_tcp_t *sock)
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{
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sock_tcp_ep_t ep;
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char addr_str[IPV6_ADDR_MAX_STR_LEN];
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sock_tcp_get_local(sock, &ep);
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ipv6_addr_to_str(addr_str, (ipv6_addr_t *)ep.addr.ipv6, sizeof(addr_str));
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printf("%s connected\n", addr_str);
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}
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void telnet_cb_disconneced(void)
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{
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puts("disconnected");
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}
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void telnet_cb_connected(sock_tcp_t *sock)
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{
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(void)sock;
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_print_motd();
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}
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int main(void)
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{
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/* we need a message queue for the thread running the shell in order to
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* receive potentially fast incoming networking packets */
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msg_init_queue(_main_msg_queue, MAIN_QUEUE_SIZE);
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_print_motd();
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/* print address so we can connect to it */
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_print_addr();
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/* start shell */
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printf("All up, awaiting connection on port %u\n", CONFIG_TELNET_PORT);
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printf("Local shell disabled");
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char line_buf[SHELL_DEFAULT_BUFSIZE];
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shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);
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/* should be never reached */
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return 0;
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}
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