/*
 * Copyright (c) 2015, SICS Swedish ICT.
 * 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.
 *
 */
/**
 * \file
 *
 * \author Simon Duquennoy <simonduq@sics.se>
 */

#include "contiki-conf.h"
#include "contiki-net.h"
#include "net/ip/uip.h"
#include "net/rpl/rpl.h"
#include <string.h>
#include <stdio.h>

#define DEBUG DEBUG_PRINT
#include "net/ip/uip-debug.h"

/*---------------------------------------------------------------------------*/
void
print_network_status(void)
{
  int i;
  uint8_t state;
  uip_ds6_defrt_t *default_route;
  uip_ds6_route_t *route;

  PRINTA("--- Network status ---\n");

  /* Our IPv6 addresses */
  PRINTA("- Server IPv6 addresses:\n");
  for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
    state = uip_ds6_if.addr_list[i].state;
    if(uip_ds6_if.addr_list[i].isused &&
       (state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
      PRINTA("-- ");
      uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
      PRINTA("\n");
    }
  }

  /* Our default route */
  PRINTA("- Default route:\n");
  default_route = uip_ds6_defrt_lookup(uip_ds6_defrt_choose());
  if(default_route != NULL) {
    PRINTA("-- ");
    uip_debug_ipaddr_print(&default_route->ipaddr);;
    PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)default_route->lifetime.interval);
  } else {
    PRINTA("-- None\n");
  }

  /* Our routing entries */
  PRINTA("- Routing entries (%u in total):\n", uip_ds6_route_num_routes());
  route = uip_ds6_route_head();
  while(route != NULL) {
    PRINTA("-- ");
    uip_debug_ipaddr_print(&route->ipaddr);
    PRINTA(" via ");
    uip_debug_ipaddr_print(uip_ds6_route_nexthop(route));
    PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)route->state.lifetime);
    route = uip_ds6_route_next(route);
  }

  PRINTA("----------------------\n");
}
/*---------------------------------------------------------------------------*/
static void
print_local_addresses(void)
{
  int i;
  uint8_t state;

  PRINTA("Server IPv6 addresses:\n");
  for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
    state = uip_ds6_if.addr_list[i].state;
    if(uip_ds6_if.addr_list[i].isused &&
       (state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
      PRINTA(" ");
      uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
      PRINTA("\n");
    }
  }
}
/*---------------------------------------------------------------------------*/
void
rpl_tools_init(uip_ipaddr_t *br_prefix)
{
  uip_ipaddr_t global_ipaddr;

  if(br_prefix) { /* We are root */
    NETSTACK_RDC.off(1);
    memcpy(&global_ipaddr, br_prefix, 16);
    uip_ds6_set_addr_iid(&global_ipaddr, &uip_lladdr);
    uip_ds6_addr_add(&global_ipaddr, 0, ADDR_AUTOCONF);
    rpl_set_root(RPL_DEFAULT_INSTANCE, &global_ipaddr);
    rpl_set_prefix(rpl_get_any_dag(), br_prefix, 64);
    rpl_repair_root(RPL_DEFAULT_INSTANCE);
  }

  NETSTACK_MAC.on();

  print_local_addresses();
}