text: /*
   * Copyright (c) 2010, Swedish Institute of Computer Science.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the Institute nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * This file is part of the Contiki operating system.
   *
   */
  
  /**
   * \file
   *         Initialiation file for the Contiki low-layer network stack (NETSTACK)
   * \author
   *         Adam Dunkels <adam@sics.se>
   */
  
  #include "net/netstack.h"
  #include "lib/list.h"
  
  /* Log configuration */
  #include "sys/log.h"
  #define LOG_MODULE "PED"
  #define LOG_LEVEL LOG_LEVEL_INFO
  
  /* The list of IP processors that will process IP packets before uip or after */
  LIST(ip_processor_list);
  
  /* Note: localdest is only used for the output callback */
  enum netstack_ip_action
  netstack_process_ip_callback(uint8_t type, const linkaddr_t *localdest)
  {
    enum netstack_ip_action action = NETSTACK_IP_PROCESS;
    struct netstack_ip_packet_processor *p;
    for(p = list_head(ip_processor_list);
        p != NULL;
        p = list_item_next(p)) {
      if(type == NETSTACK_IP_OUTPUT) {
        if(p->process_output != NULL) {
          action = p->process_output(localdest);
        }
      } else if(type == NETSTACK_IP_INPUT) {
        if(p->process_input != NULL) {
          action = p->process_input();
        }
      }
      /* if not NETSTACK_IP_PROCESS - quit and return the desired action */
      if(action != NETSTACK_IP_PROCESS)
        return action;
    }
    return action;
  }
  /*---------------------------------------------------------------------------*/
  void
  netstack_ip_packet_processor_add(struct netstack_ip_packet_processor *p)
  {
    if(p != NULL) {
      list_add(ip_processor_list, p);
    }
  }
  /*---------------------------------------------------------------------------*/
  void
  uip_ds6_ip_packet_processor_rm(struct netstack_ip_packet_processor *p)
                                 {
    list_remove(ip_processor_list, p);
  }
  
  /*---------------------------------------------------------------------------*/
  void
  netstack_init(void)
  {
    NETSTACK_RADIO.init();
    NETSTACK_MAC.init();
    NETSTACK_NETWORK.init();
  
    #ifdef NETSTACK_NETWORK1
      NETSTACK_NETWORK1.init();
    #endif
  }
  /*---------------------------------------------------------------------------*/
  