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197 lines
5.9 KiB
C
197 lines
5.9 KiB
C
/*
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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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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* $Id: shell-rime-unicast.c,v 1.4 2010/03/19 13:24:26 adamdunkels Exp $
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*/
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/**
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* \file
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* A brief description of what this file is.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "contiki.h"
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#include "contiki-conf.h"
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#include "shell-rime-debug.h"
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#include "dev/leds.h"
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#include "lib/random.h"
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#include "net/rime.h"
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#include "net/rime/route.h"
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#include "net/rime/trickle.h"
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#include "net/rime/timesynch.h"
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#include <stdio.h>
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#ifndef HAVE_SNPRINTF
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int snprintf(char *str, size_t size, const char *format, ...);
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#endif /* HAVE_SNPRINTF */
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#include <string.h>
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#define MAX_DATALEN 32
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#define UNICAST_MSG_HDRSIZE 2
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struct unicast_msg {
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uint16_t timestamp;
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uint8_t data[MAX_DATALEN];
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};
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static uint8_t is_receiving;
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static struct unicast_conn uc;
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_unicast_send_process, "unicast-send");
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SHELL_COMMAND(unicast_send_command,
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"unicast-send",
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"unicast-send <node addr>: send data to specific neighbor",
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&shell_unicast_send_process);
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PROCESS(shell_unicast_recv_process, "unicast-recv");
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SHELL_COMMAND(unicast_recv_command,
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"unicast-recv",
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"unicast-recv: receive data that neighbors send with unicast-send",
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&shell_unicast_recv_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_unicast_send_process, ev, data)
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{
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struct shell_input *input;
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static rimeaddr_t receiver;
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int len;
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const char *nextptr;
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struct unicast_msg *msg;
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PROCESS_BEGIN();
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receiver.u8[0] = shell_strtolong(data, &nextptr);
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if(nextptr == data || *nextptr != '.') {
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shell_output_str(&unicast_send_command,
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"unicast <receiver>: recevier must be specified", "");
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PROCESS_EXIT();
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}
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++nextptr;
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receiver.u8[1] = shell_strtolong(nextptr, &nextptr);
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/* snprintf(buf, sizeof(buf), "%d.%d", receiver.u8[0], receiver.u8[1]);
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shell_output_str(&unicast_send_command, "Sending unicast packets to ", buf);*/
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);
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input = data;
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len = input->len1 + input->len2;
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if(len == 0) {
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PROCESS_EXIT();
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}
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if(len < MAX_DATALEN) {
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packetbuf_clear();
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packetbuf_set_datalen(len + UNICAST_MSG_HDRSIZE);
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msg = packetbuf_dataptr();
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memcpy(msg->data, input->data1, input->len1);
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memcpy(msg->data + input->len1, input->data2, input->len2);
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#if TIMESYNCH_CONF_ENABLED
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msg->timestamp = timesynch_time();
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#else
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msg->timestamp = 0;
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#endif
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/* printf("Sending %d bytes\n", len);*/
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unicast_send(&uc, &receiver);
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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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static void
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recv_uc(struct unicast_conn *c, const rimeaddr_t *from)
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{
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struct unicast_msg *msg;
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#define OUTPUT_BLOB_HDRSIZE 6
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struct {
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uint16_t len;
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uint16_t from;
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uint16_t latency;
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uint16_t data[MAX_DATALEN];
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} output_blob;
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if(is_receiving == 0) {
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return;
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}
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msg = packetbuf_dataptr();
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#if TIMESYNCH_CONF_ENABLED
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output_blob.latency = timesynch_time() - msg->timestamp;
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#else
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output_blob.latency = 0;
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#endif
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rimeaddr_copy((rimeaddr_t *)&output_blob.from, from);
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memcpy(output_blob.data, msg->data, packetbuf_datalen() - UNICAST_MSG_HDRSIZE);
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output_blob.len = 2 + (packetbuf_datalen() - UNICAST_MSG_HDRSIZE) / 2;
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shell_output(&unicast_recv_command, &output_blob,
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OUTPUT_BLOB_HDRSIZE + (packetbuf_datalen() - UNICAST_MSG_HDRSIZE),
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NULL, 0);
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/*
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printf("unicast message received from %d.%d, latency %lu ms, data '%.*s'\n",
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from->u8[0], from->u8[1],
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(1000L * latency) / RTIMER_ARCH_SECOND,
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packetbuf_datalen() - UNICAST_MSG_HDRSIZE,
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msg->data);*/
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}
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static const struct unicast_callbacks unicast_callbacks = {recv_uc};
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PROCESS_THREAD(shell_unicast_recv_process, ev, data)
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{
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PROCESS_EXITHANDLER(is_receiving = 0;);
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PROCESS_BEGIN();
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is_receiving = 1;
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while(1) {
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PROCESS_WAIT_EVENT();
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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_rime_unicast_init(void)
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{
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unicast_open(&uc, SHELL_RIME_CHANNEL_UNICAST,
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&unicast_callbacks);
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shell_register_command(&unicast_send_command);
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shell_register_command(&unicast_recv_command);
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}
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/*---------------------------------------------------------------------------*/
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