/*
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* Copyright (c) 2004, 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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/**
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* \file
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* Code for tunnelling uIP packets over the Rime mesh routing module
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*
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* \author Adam Dunkels <adam@sics.se>\author
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* \author Mathilde Durvy <mdurvy@cisco.com> (IPv6 related code)
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* \author Julien Abeille <jabeille@cisco.com> (IPv6 related code)
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*/
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#include "contiki-net.h"
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#include "net/uip-split.h"
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#include "net/uip-packetqueue.h"
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#if UIP_CONF_IPV6
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#include "net/uip-nd6.h"
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#include "net/uip-ds6.h"
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#endif
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#include <string.h>
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#define DEBUG DEBUG_NONE
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#include "net/uip-debug.h"
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#if UIP_LOGGING
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#include <stdio.h>
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void uip_log(char *msg);
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#define UIP_LOG(m) uip_log(m)
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#else
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#define UIP_LOG(m)
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#endif
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#define UIP_ICMP_BUF ((struct uip_icmp_hdr *)&uip_buf[UIP_LLIPH_LEN + uip_ext_len])
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#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define UIP_TCP_BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
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#ifdef UIP_FALLBACK_INTERFACE
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extern struct uip_fallback_interface UIP_FALLBACK_INTERFACE;
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#endif
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#if UIP_CONF_IPV6_RPL
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#include "rpl/rpl.h"
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#endif
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process_event_t tcpip_event;
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#if UIP_CONF_ICMP6
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process_event_t tcpip_icmp6_event;
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#endif /* UIP_CONF_ICMP6 */
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/* Periodic check of active connections. */
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static struct etimer periodic;
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#if UIP_CONF_IPV6 && UIP_CONF_IPV6_REASSEMBLY
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/* Timer for reassembly. */
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extern struct etimer uip_reass_timer;
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#endif
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#if UIP_TCP
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/**
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* \internal Structure for holding a TCP port and a process ID.
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*/
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struct listenport {
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uint16_t port;
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struct process *p;
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};
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static struct internal_state {
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struct listenport listenports[UIP_LISTENPORTS];
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struct process *p;
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} s;
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#endif
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enum {
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TCP_POLL,
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UDP_POLL,
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PACKET_INPUT
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};
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/* Called on IP packet output. */
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#if UIP_CONF_IPV6
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static uint8_t (* outputfunc)(uip_lladdr_t *a);
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uint8_t
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tcpip_output(uip_lladdr_t *a)
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{
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int ret;
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if(outputfunc != NULL) {
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ret = outputfunc(a);
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return ret;
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}
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UIP_LOG("tcpip_output: Use tcpip_set_outputfunc() to set an output function");
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return 0;
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}
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void
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tcpip_set_outputfunc(uint8_t (*f)(uip_lladdr_t *))
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{
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outputfunc = f;
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}
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#else
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static uint8_t (* outputfunc)(void);
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uint8_t
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tcpip_output(void)
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{
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if(outputfunc != NULL) {
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return outputfunc();
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}
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UIP_LOG("tcpip_output: Use tcpip_set_outputfunc() to set an output function");
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return 0;
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}
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void
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tcpip_set_outputfunc(uint8_t (*f)(void))
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{
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outputfunc = f;
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}
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#endif
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#if UIP_CONF_IP_FORWARD
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unsigned char tcpip_is_forwarding; /* Forwarding right now? */
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#endif /* UIP_CONF_IP_FORWARD */
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PROCESS(tcpip_process, "TCP/IP stack");
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/*---------------------------------------------------------------------------*/
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static void
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start_periodic_tcp_timer(void)
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{
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if(etimer_expired(&periodic)) {
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etimer_restart(&periodic);
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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check_for_tcp_syn(void)
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{
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#if UIP_TCP || UIP_CONF_IP_FORWARD
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/* This is a hack that is needed to start the periodic TCP timer if
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an incoming packet contains a SYN: since uIP does not inform the
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application if a SYN arrives, we have no other way of starting
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this timer. This function is called for every incoming IP packet
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to check for such SYNs. */
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#define TCP_SYN 0x02
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if(UIP_IP_BUF->proto == UIP_PROTO_TCP &&
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(UIP_TCP_BUF->flags & TCP_SYN) == TCP_SYN) {
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start_periodic_tcp_timer();
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}
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#endif /* UIP_TCP || UIP_CONF_IP_FORWARD */
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}
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/*---------------------------------------------------------------------------*/
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static void
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packet_input(void)
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{
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#if UIP_CONF_IP_FORWARD
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if(uip_len > 0) {
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tcpip_is_forwarding = 1;
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if(uip_fw_forward() == UIP_FW_LOCAL) {
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tcpip_is_forwarding = 0;
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check_for_tcp_syn();
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uip_input();
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if(uip_len > 0) {
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#if UIP_CONF_TCP_SPLIT
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uip_split_output();
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#else /* UIP_CONF_TCP_SPLIT */
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#if UIP_CONF_IPV6
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tcpip_ipv6_output();
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#else
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PRINTF("tcpip packet_input forward output len %d\n", uip_len);
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tcpip_output();
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#endif
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#endif /* UIP_CONF_TCP_SPLIT */
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}
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}
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tcpip_is_forwarding = 0;
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}
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#else /* UIP_CONF_IP_FORWARD */
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if(uip_len > 0) {
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check_for_tcp_syn();
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uip_input();
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if(uip_len > 0) {
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#if UIP_CONF_TCP_SPLIT
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uip_split_output();
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#else /* UIP_CONF_TCP_SPLIT */
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#if UIP_CONF_IPV6
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tcpip_ipv6_output();
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#else
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PRINTF("tcpip packet_input output len %d\n", uip_len);
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tcpip_output();
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#endif
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#endif /* UIP_CONF_TCP_SPLIT */
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}
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}
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#endif /* UIP_CONF_IP_FORWARD */
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}
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/*---------------------------------------------------------------------------*/
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#if UIP_TCP
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#if UIP_ACTIVE_OPEN
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struct uip_conn *
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tcp_connect(uip_ipaddr_t *ripaddr, uint16_t port, void *appstate)
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{
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struct uip_conn *c;
|
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c = uip_connect(ripaddr, port);
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if(c == NULL) {
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return NULL;
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}
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c->appstate.p = PROCESS_CURRENT();
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c->appstate.state = appstate;
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tcpip_poll_tcp(c);
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return c;
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}
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#endif /* UIP_ACTIVE_OPEN */
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/*---------------------------------------------------------------------------*/
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void
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tcp_unlisten(uint16_t port)
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{
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static unsigned char i;
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struct listenport *l;
|
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l = s.listenports;
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for(i = 0; i < UIP_LISTENPORTS; ++i) {
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if(l->port == port &&
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l->p == PROCESS_CURRENT()) {
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l->port = 0;
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uip_unlisten(port);
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break;
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}
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++l;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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tcp_listen(uint16_t port)
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{
|
static unsigned char i;
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struct listenport *l;
|
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l = s.listenports;
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for(i = 0; i < UIP_LISTENPORTS; ++i) {
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if(l->port == 0) {
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l->port = port;
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l->p = PROCESS_CURRENT();
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uip_listen(port);
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break;
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}
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++l;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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tcp_attach(struct uip_conn *conn,
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void *appstate)
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{
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uip_tcp_appstate_t *s;
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s = &conn->appstate;
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s->p = PROCESS_CURRENT();
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s->state = appstate;
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}
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#endif /* UIP_TCP */
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/*---------------------------------------------------------------------------*/
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#if UIP_UDP
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void
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udp_attach(struct uip_udp_conn *conn,
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void *appstate)
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{
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uip_udp_appstate_t *s;
|
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s = &conn->appstate;
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s->p = PROCESS_CURRENT();
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s->state = appstate;
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}
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/*---------------------------------------------------------------------------*/
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struct uip_udp_conn *
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udp_new(const uip_ipaddr_t *ripaddr, uint16_t port, void *appstate)
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{
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struct uip_udp_conn *c;
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uip_udp_appstate_t *s;
|
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c = uip_udp_new(ripaddr, port);
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if(c == NULL) {
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return NULL;
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}
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s = &c->appstate;
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s->p = PROCESS_CURRENT();
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s->state = appstate;
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return c;
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}
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/*---------------------------------------------------------------------------*/
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struct uip_udp_conn *
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udp_broadcast_new(uint16_t port, void *appstate)
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{
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uip_ipaddr_t addr;
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struct uip_udp_conn *conn;
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#if UIP_CONF_IPV6
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uip_create_linklocal_allnodes_mcast(&addr);
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#else
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uip_ipaddr(&addr, 255,255,255,255);
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#endif /* UIP_CONF_IPV6 */
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conn = udp_new(&addr, port, appstate);
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if(conn != NULL) {
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udp_bind(conn, port);
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}
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return conn;
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}
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#endif /* UIP_UDP */
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/*---------------------------------------------------------------------------*/
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#if UIP_CONF_ICMP6
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uint8_t
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icmp6_new(void *appstate) {
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if(uip_icmp6_conns.appstate.p == PROCESS_NONE) {
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uip_icmp6_conns.appstate.p = PROCESS_CURRENT();
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uip_icmp6_conns.appstate.state = appstate;
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return 0;
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}
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return 1;
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}
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void
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tcpip_icmp6_call(uint8_t type)
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{
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if(uip_icmp6_conns.appstate.p != PROCESS_NONE) {
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/* XXX: This is a hack that needs to be updated. Passing a pointer (&type)
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like this only works with process_post_synch. */
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process_post_synch(uip_icmp6_conns.appstate.p, tcpip_icmp6_event, &type);
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}
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return;
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}
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#endif /* UIP_CONF_ICMP6 */
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/*---------------------------------------------------------------------------*/
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static void
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eventhandler(process_event_t ev, process_data_t data)
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{
|
#if UIP_TCP
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static unsigned char i;
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register struct listenport *l;
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#endif /*UIP_TCP*/
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struct process *p;
|
|
switch(ev) {
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case PROCESS_EVENT_EXITED:
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/* This is the event we get if a process has exited. We go through
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the TCP/IP tables to see if this process had any open
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connections or listening TCP ports. If so, we'll close those
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connections. */
|
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p = (struct process *)data;
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#if UIP_TCP
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l = s.listenports;
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for(i = 0; i < UIP_LISTENPORTS; ++i) {
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if(l->p == p) {
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uip_unlisten(l->port);
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l->port = 0;
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l->p = PROCESS_NONE;
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}
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++l;
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}
|
|
{
|
struct uip_conn *cptr;
|
|
for(cptr = &uip_conns[0]; cptr < &uip_conns[UIP_CONNS]; ++cptr) {
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if(cptr->appstate.p == p) {
|
cptr->appstate.p = PROCESS_NONE;
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cptr->tcpstateflags = UIP_CLOSED;
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}
|
}
|
}
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#endif /* UIP_TCP */
|
#if UIP_UDP
|
{
|
struct uip_udp_conn *cptr;
|
|
for(cptr = &uip_udp_conns[0];
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cptr < &uip_udp_conns[UIP_UDP_CONNS]; ++cptr) {
|
if(cptr->appstate.p == p) {
|
cptr->lport = 0;
|
}
|
}
|
}
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#endif /* UIP_UDP */
|
break;
|
|
case PROCESS_EVENT_TIMER:
|
/* We get this event if one of our timers have expired. */
|
{
|
/* Check the clock so see if we should call the periodic uIP
|
processing. */
|
if(data == &periodic &&
|
etimer_expired(&periodic)) {
|
#if UIP_TCP
|
for(i = 0; i < UIP_CONNS; ++i) {
|
if(uip_conn_active(i)) {
|
/* Only restart the timer if there are active
|
connections. */
|
etimer_restart(&periodic);
|
uip_periodic(i);
|
#if UIP_CONF_IPV6
|
tcpip_ipv6_output();
|
#else
|
if(uip_len > 0) {
|
PRINTF("tcpip_output from periodic len %d\n", uip_len);
|
tcpip_output();
|
PRINTF("tcpip_output after periodic len %d\n", uip_len);
|
}
|
#endif /* UIP_CONF_IPV6 */
|
}
|
}
|
#endif /* UIP_TCP */
|
#if UIP_CONF_IP_FORWARD
|
uip_fw_periodic();
|
#endif /* UIP_CONF_IP_FORWARD */
|
}
|
|
#if UIP_CONF_IPV6
|
#if UIP_CONF_IPV6_REASSEMBLY
|
/*
|
* check the timer for reassembly
|
*/
|
if(data == &uip_reass_timer &&
|
etimer_expired(&uip_reass_timer)) {
|
uip_reass_over();
|
tcpip_ipv6_output();
|
}
|
#endif /* UIP_CONF_IPV6_REASSEMBLY */
|
/*
|
* check the different timers for neighbor discovery and
|
* stateless autoconfiguration
|
*/
|
/*if(data == &uip_ds6_timer_periodic &&
|
etimer_expired(&uip_ds6_timer_periodic)) {
|
uip_ds6_periodic();
|
tcpip_ipv6_output();
|
}*/
|
#if !UIP_CONF_ROUTER
|
if(data == &uip_ds6_timer_rs &&
|
etimer_expired(&uip_ds6_timer_rs)) {
|
uip_ds6_send_rs();
|
tcpip_ipv6_output();
|
}
|
#endif /* !UIP_CONF_ROUTER */
|
if(data == &uip_ds6_timer_periodic &&
|
etimer_expired(&uip_ds6_timer_periodic)) {
|
uip_ds6_periodic();
|
tcpip_ipv6_output();
|
}
|
#endif /* UIP_CONF_IPV6 */
|
}
|
break;
|
|
#if UIP_TCP
|
case TCP_POLL:
|
if(data != NULL) {
|
uip_poll_conn(data);
|
#if UIP_CONF_IPV6
|
tcpip_ipv6_output();
|
#else /* UIP_CONF_IPV6 */
|
if(uip_len > 0) {
|
PRINTF("tcpip_output from tcp poll len %d\n", uip_len);
|
tcpip_output();
|
}
|
#endif /* UIP_CONF_IPV6 */
|
/* Start the periodic polling, if it isn't already active. */
|
start_periodic_tcp_timer();
|
}
|
break;
|
#endif /* UIP_TCP */
|
#if UIP_UDP
|
case UDP_POLL:
|
if(data != NULL) {
|
uip_udp_periodic_conn(data);
|
#if UIP_CONF_IPV6
|
tcpip_ipv6_output();
|
#else
|
if(uip_len > 0) {
|
tcpip_output();
|
}
|
#endif /* UIP_UDP */
|
}
|
break;
|
#endif /* UIP_UDP */
|
|
case PACKET_INPUT:
|
packet_input();
|
break;
|
};
|
}
|
/*---------------------------------------------------------------------------*/
|
void
|
tcpip_input(void)
|
{
|
process_post_synch(&tcpip_process, PACKET_INPUT, NULL);
|
uip_len = 0;
|
#if UIP_CONF_IPV6
|
uip_ext_len = 0;
|
#endif /*UIP_CONF_IPV6*/
|
}
|
/*---------------------------------------------------------------------------*/
|
#if UIP_CONF_IPV6
|
void
|
tcpip_ipv6_output(void)
|
{
|
uip_ds6_nbr_t *nbr = NULL;
|
uip_ipaddr_t *nexthop;
|
|
if(uip_len == 0) {
|
return;
|
}
|
|
if(uip_len > UIP_LINK_MTU) {
|
UIP_LOG("tcpip_ipv6_output: Packet to big");
|
uip_len = 0;
|
return;
|
}
|
|
if(uip_is_addr_unspecified(&UIP_IP_BUF->destipaddr)){
|
UIP_LOG("tcpip_ipv6_output: Destination address unspecified");
|
uip_len = 0;
|
return;
|
}
|
|
if(!uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
|
/* Next hop determination */
|
nbr = NULL;
|
|
/* We first check if the destination address is on our immediate
|
link. If so, we simply use the destination address as our
|
nexthop address. */
|
if(uip_ds6_is_addr_onlink(&UIP_IP_BUF->destipaddr)){
|
nexthop = &UIP_IP_BUF->destipaddr;
|
} else {
|
uip_ds6_route_t *route;
|
/* Check if we have a route to the destination address. */
|
route = uip_ds6_route_lookup(&UIP_IP_BUF->destipaddr);
|
|
/* No route was found - we send to the default route instead. */
|
if(route == NULL) {
|
PRINTF("tcpip_ipv6_output: no route found, using default route\n");
|
nexthop = uip_ds6_defrt_choose();
|
if(nexthop == NULL) {
|
#ifdef UIP_FALLBACK_INTERFACE
|
PRINTF("FALLBACK: removing ext hdrs & setting proto %d %d\n",
|
uip_ext_len, *((uint8_t *)UIP_IP_BUF + 40));
|
if(uip_ext_len > 0) {
|
extern void remove_ext_hdr(void);
|
uint8_t proto = *((uint8_t *)UIP_IP_BUF + 40);
|
remove_ext_hdr();
|
/* This should be copied from the ext header... */
|
UIP_IP_BUF->proto = proto;
|
}
|
UIP_FALLBACK_INTERFACE.output();
|
#else
|
PRINTF("tcpip_ipv6_output: Destination off-link but no route\n");
|
#endif /* !UIP_FALLBACK_INTERFACE */
|
uip_len = 0;
|
return;
|
}
|
|
} else {
|
/* A route was found, so we look up the nexthop neighbor for
|
the route. */
|
nexthop = uip_ds6_route_nexthop(route);
|
|
/* If the nexthop is dead, for example because the neighbor
|
never responded to link-layer acks, we drop its route. */
|
if(nexthop == NULL) {
|
#if UIP_CONF_IPV6_RPL
|
/* If we are running RPL, and if we are the root of the
|
network, we'll trigger a global repair berfore we remove
|
the route. */
|
rpl_dag_t *dag;
|
rpl_instance_t *instance;
|
|
dag = (rpl_dag_t *)route->state.dag;
|
if(dag != NULL) {
|
instance = dag->instance;
|
|
rpl_repair_root(instance->instance_id);
|
}
|
#endif /* UIP_CONF_RPL */
|
uip_ds6_route_rm(route);
|
|
/* We don't have a nexthop to send the packet to, so we drop
|
it. */
|
return;
|
}
|
}
|
#if TCPIP_CONF_ANNOTATE_TRANSMISSIONS
|
if(nexthop != NULL) {
|
static uint8_t annotate_last;
|
static uint8_t annotate_has_last = 0;
|
|
if(annotate_has_last) {
|
printf("#L %u 0; red\n", annotate_last);
|
}
|
printf("#L %u 1; red\n", nexthop->u8[sizeof(uip_ipaddr_t) - 1]);
|
annotate_last = nexthop->u8[sizeof(uip_ipaddr_t) - 1];
|
annotate_has_last = 1;
|
}
|
#endif /* TCPIP_CONF_ANNOTATE_TRANSMISSIONS */
|
}
|
|
/* End of next hop determination */
|
|
#if UIP_CONF_IPV6_RPL
|
if(rpl_update_header_final(nexthop)) {
|
uip_len = 0;
|
return;
|
}
|
#endif /* UIP_CONF_IPV6_RPL */
|
nbr = uip_ds6_nbr_lookup(nexthop);
|
if(nbr == NULL) {
|
#if UIP_ND6_SEND_NA
|
if((nbr = uip_ds6_nbr_add(nexthop, NULL, 0, NBR_INCOMPLETE)) == NULL) {
|
uip_len = 0;
|
return;
|
} else {
|
#if UIP_CONF_IPV6_QUEUE_PKT
|
/* Copy outgoing pkt in the queuing buffer for later transmit. */
|
if(uip_packetqueue_alloc(&nbr->packethandle, UIP_DS6_NBR_PACKET_LIFETIME) != NULL) {
|
memcpy(uip_packetqueue_buf(&nbr->packethandle), UIP_IP_BUF, uip_len);
|
uip_packetqueue_set_buflen(&nbr->packethandle, uip_len);
|
}
|
#endif
|
/* RFC4861, 7.2.2:
|
* "If the source address of the packet prompting the solicitation is the
|
* same as one of the addresses assigned to the outgoing interface, that
|
* address SHOULD be placed in the IP Source Address of the outgoing
|
* solicitation. Otherwise, any one of the addresses assigned to the
|
* interface should be used."*/
|
if(uip_ds6_is_my_addr(&UIP_IP_BUF->srcipaddr)){
|
uip_nd6_ns_output(&UIP_IP_BUF->srcipaddr, NULL, &nbr->ipaddr);
|
} else {
|
uip_nd6_ns_output(NULL, NULL, &nbr->ipaddr);
|
}
|
|
stimer_set(&nbr->sendns, uip_ds6_if.retrans_timer / 1000);
|
nbr->nscount = 1;
|
}
|
#endif /* UIP_ND6_SEND_NA */
|
} else {
|
#if UIP_ND6_SEND_NA
|
if(nbr->state == NBR_INCOMPLETE) {
|
PRINTF("tcpip_ipv6_output: nbr cache entry incomplete\n");
|
#if UIP_CONF_IPV6_QUEUE_PKT
|
/* Copy outgoing pkt in the queuing buffer for later transmit and set
|
the destination nbr to nbr. */
|
if(uip_packetqueue_alloc(&nbr->packethandle, UIP_DS6_NBR_PACKET_LIFETIME) != NULL) {
|
memcpy(uip_packetqueue_buf(&nbr->packethandle), UIP_IP_BUF, uip_len);
|
uip_packetqueue_set_buflen(&nbr->packethandle, uip_len);
|
}
|
#endif /*UIP_CONF_IPV6_QUEUE_PKT*/
|
uip_len = 0;
|
return;
|
}
|
/* Send in parallel if we are running NUD (nbc state is either STALE,
|
DELAY, or PROBE). See RFC 4861, section 7.3.3 on node behavior. */
|
if(nbr->state == NBR_STALE) {
|
nbr->state = NBR_DELAY;
|
stimer_set(&nbr->reachable, UIP_ND6_DELAY_FIRST_PROBE_TIME);
|
nbr->nscount = 0;
|
PRINTF("tcpip_ipv6_output: nbr cache entry stale moving to delay\n");
|
}
|
#endif /* UIP_ND6_SEND_NA */
|
|
tcpip_output(uip_ds6_nbr_get_ll(nbr));
|
|
#if UIP_CONF_IPV6_QUEUE_PKT
|
/*
|
* Send the queued packets from here, may not be 100% perfect though.
|
* This happens in a few cases, for example when instead of receiving a
|
* NA after sendiong a NS, you receive a NS with SLLAO: the entry moves
|
* to STALE, and you must both send a NA and the queued packet.
|
*/
|
if(uip_packetqueue_buflen(&nbr->packethandle) != 0) {
|
uip_len = uip_packetqueue_buflen(&nbr->packethandle);
|
memcpy(UIP_IP_BUF, uip_packetqueue_buf(&nbr->packethandle), uip_len);
|
uip_packetqueue_free(&nbr->packethandle);
|
tcpip_output(uip_ds6_nbr_get_ll(nbr));
|
}
|
#endif /*UIP_CONF_IPV6_QUEUE_PKT*/
|
|
uip_len = 0;
|
return;
|
}
|
return;
|
}
|
/* Multicast IP destination address. */
|
tcpip_output(NULL);
|
uip_len = 0;
|
uip_ext_len = 0;
|
}
|
#endif /* UIP_CONF_IPV6 */
|
/*---------------------------------------------------------------------------*/
|
#if UIP_UDP
|
void
|
tcpip_poll_udp(struct uip_udp_conn *conn)
|
{
|
process_post(&tcpip_process, UDP_POLL, conn);
|
}
|
#endif /* UIP_UDP */
|
/*---------------------------------------------------------------------------*/
|
#if UIP_TCP
|
void
|
tcpip_poll_tcp(struct uip_conn *conn)
|
{
|
process_post(&tcpip_process, TCP_POLL, conn);
|
}
|
#endif /* UIP_TCP */
|
/*---------------------------------------------------------------------------*/
|
void
|
tcpip_uipcall(void)
|
{
|
uip_udp_appstate_t *ts;
|
|
#if UIP_UDP
|
if(uip_conn != NULL) {
|
ts = &uip_conn->appstate;
|
} else {
|
ts = &uip_udp_conn->appstate;
|
}
|
#else /* UIP_UDP */
|
ts = &uip_conn->appstate;
|
#endif /* UIP_UDP */
|
|
#if UIP_TCP
|
{
|
static unsigned char i;
|
struct listenport *l;
|
|
/* If this is a connection request for a listening port, we must
|
mark the connection with the right process ID. */
|
if(uip_connected()) {
|
l = &s.listenports[0];
|
for(i = 0; i < UIP_LISTENPORTS; ++i) {
|
if(l->port == uip_conn->lport &&
|
l->p != PROCESS_NONE) {
|
ts->p = l->p;
|
ts->state = NULL;
|
break;
|
}
|
++l;
|
}
|
|
/* Start the periodic polling, if it isn't already active. */
|
start_periodic_tcp_timer();
|
}
|
}
|
#endif /* UIP_TCP */
|
|
if(ts->p != NULL) {
|
process_post_synch(ts->p, tcpip_event, ts->state);
|
}
|
}
|
/*---------------------------------------------------------------------------*/
|
PROCESS_THREAD(tcpip_process, ev, data)
|
{
|
PROCESS_BEGIN();
|
|
#if UIP_TCP
|
{
|
static unsigned char i;
|
|
for(i = 0; i < UIP_LISTENPORTS; ++i) {
|
s.listenports[i].port = 0;
|
}
|
s.p = PROCESS_CURRENT();
|
}
|
#endif
|
|
tcpip_event = process_alloc_event();
|
#if UIP_CONF_ICMP6
|
tcpip_icmp6_event = process_alloc_event();
|
#endif /* UIP_CONF_ICMP6 */
|
etimer_set(&periodic, CLOCK_SECOND / 2);
|
|
uip_init();
|
#ifdef UIP_FALLBACK_INTERFACE
|
UIP_FALLBACK_INTERFACE.init();
|
#endif
|
/* initialize RPL if configured for using RPL */
|
#if UIP_CONF_IPV6 && UIP_CONF_IPV6_RPL
|
rpl_init();
|
#endif /* UIP_CONF_IPV6_RPL */
|
|
while(1) {
|
PROCESS_YIELD();
|
eventhandler(ev, data);
|
}
|
|
PROCESS_END();
|
}
|
/*---------------------------------------------------------------------------*/
|
