81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
/*
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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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*/
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#include "contiki.h"
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#include "net/routing/routing.h"
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#include "net/netstack.h"
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#include "net/ipv6/simple-udp.h"
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#include "sys/log.h"
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#define LOG_MODULE "App"
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#define LOG_LEVEL LOG_LEVEL_INFO
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#define WITH_SERVER_REPLY 1
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#define UDP_CLIENT_PORT 8765
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#define UDP_SERVER_PORT 5678
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static struct simple_udp_connection udp_conn;
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PROCESS(udp_server_process, "UDP server");
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AUTOSTART_PROCESSES(&udp_server_process);
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/*---------------------------------------------------------------------------*/
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static void
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udp_rx_callback(struct simple_udp_connection *c,
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const uip_ipaddr_t *sender_addr,
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uint16_t sender_port,
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const uip_ipaddr_t *receiver_addr,
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uint16_t receiver_port,
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const uint8_t *data,
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uint16_t datalen)
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{
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LOG_INFO("Received request '%.*s' from ", datalen, (char *) data);
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LOG_INFO_6ADDR(sender_addr);
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LOG_INFO_("\n");
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#if WITH_SERVER_REPLY
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/* send back the same string to the client as an echo reply */
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LOG_INFO("Sending response.\n");
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simple_udp_sendto(&udp_conn, data, datalen, sender_addr);
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#endif /* WITH_SERVER_REPLY */
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(udp_server_process, ev, data)
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{
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PROCESS_BEGIN();
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/* Initialize DAG root */
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NETSTACK_ROUTING.root_start();
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/* Initialize UDP connection */
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simple_udp_register(&udp_conn, UDP_SERVER_PORT, NULL,
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UDP_CLIENT_PORT, udp_rx_callback);
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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