Added three commands for IP interaction in the shell: ping (sends ICMP ping messages), tcpsend (sets up TCP connections for sending and receiving data), and udpsend (sends and receives UDP packets)
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adamdunkels
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3848bba210
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ddafef15e9
8 changed files with 675 additions and 2 deletions
194
apps/shell/shell-tcpsend.c
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194
apps/shell/shell-tcpsend.c
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/*
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* Copyright (c) 2004, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: shell-tcpsend.c,v 1.1 2009/03/06 00:29:33 adamdunkels Exp $
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*/
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#include <string.h>
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#include <stddef.h>
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#include "contiki.h"
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#include "shell.h"
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#include "telnet.h"
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#ifndef MIN
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#define MIN(a, b) ((a) < (b)? (a) : (b))
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#endif /* MIN */
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_tcpsend_process, "tcpsend");
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SHELL_COMMAND(tcpsend_command,
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"tcpsend",
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"tcpsend <host> <port>: open a TCP connection",
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&shell_tcpsend_process);
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/*---------------------------------------------------------------------------*/
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#define MAX_SERVERLEN 16
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static uip_ipaddr_t serveraddr;
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static char server[MAX_SERVERLEN + 1];
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static struct telnet_state s;
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static unsigned char running;
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#define MAX_LINELEN 80
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static char outputline[MAX_LINELEN];
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static uint8_t sending;
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/*---------------------------------------------------------------------------*/
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void
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telnet_text_output(struct telnet_state *s, char *text1, char *text2)
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{
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char buf1[MAX_SERVERLEN];
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int len;
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strncpy(buf1, text1, sizeof(buf1));
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len = strlen(buf1);
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if(len < sizeof(buf1) - 1) {
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buf1[len] = ' ';
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buf1[len + 1] = 0;
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}
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shell_output_str(&tcpsend_command, buf1, text2);
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_newdata(struct telnet_state *s, char *data, uint16_t len)
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{
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shell_output(&tcpsend_command, data, len, "", 0);
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}
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/*---------------------------------------------------------------------------*/
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static void
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send_line(struct telnet_state *s, char *data, int len)
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{
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if(!sending) {
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strncpy(outputline, data, MIN(sizeof(outputline), len));
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telnet_send(s, data, len);
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sending = 1;
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} else {
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shell_output_str(&tcpsend_command, "Cannot send data, still sending previous data", "");
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_sent(struct telnet_state *s)
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{
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sending = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_closed(struct telnet_state *s)
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{
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telnet_text_output(s, server, "connection closed");
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running = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_aborted(struct telnet_state *s)
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{
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telnet_text_output(s, server, "connection aborted");
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running = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_timedout(struct telnet_state *s)
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{
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telnet_text_output(s, server, "connection timed out");
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running = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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telnet_connected(struct telnet_state *s)
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{
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telnet_text_output(s, server, "connected");
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_tcpsend_process, ev, data)
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{
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char *next;
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struct shell_input *input;
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uint16_t port;
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PROCESS_BEGIN();
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next = strchr(data, ' ');
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if(next == NULL) {
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shell_output_str(&tcpsend_command,
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"tcpsend <server> <port>: server as address", "");
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PROCESS_EXIT();
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}
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*next = 0;
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++next;
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strncpy(server, data, sizeof(server));
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port = shell_strtolong(next, NULL);
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running = 1;
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uiplib_ipaddrconv(server, (u8_t *)&serveraddr);
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telnet_connect(&s, &serveraddr, port);
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while(running) {
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PROCESS_WAIT_EVENT();
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if(ev == shell_event_input) {
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input = data;
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if(input->len1 + input->len2 == 0) {
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PROCESS_EXIT();
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}
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if(input->len1 > 0) {
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send_line(&s, input->data1, input->len1);
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}
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} else if(ev == tcpip_event) {
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telnet_app(data);
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#if 0
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} else if(ev == resolv_event_found) {
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/* Either found a hostname, or not. */
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if((char *)data != NULL &&
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resolv_lookup((char *)data) != NULL) {
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uip_ipaddr_copy(serveraddr, ipaddr);
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telnet_connect(&s, server, serveraddr, nick);
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} else {
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shell_output_str(&tcpsend_command, "Host not found.", "");
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}
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#endif /* 0 */
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_tcpsend_init(void)
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{
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shell_register_command(&tcpsend_command);
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}
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/*---------------------------------------------------------------------------*/
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