Exemple #1
0
int
i2rs_route_add ()
{

  struct zapi_ipv4 api;
  struct prefix_ipv4 routeToAdd;
  struct in_addr nexthop[1];
  struct in_addr *nexthop_p;
  unsigned int ifindex;

printf("Start i2rs_route_add\n");

  routeToAdd.family = AF_INET;
  routeToAdd.prefixlen = 24; // \24 mask
  inet_pton(AF_INET, "100.100.100.1", &routeToAdd.prefix.s_addr);

  printf("i2rs zebra ADD start\n");
  api.vrf_id = VRF_DEFAULT;
  api.type = ZEBRA_ROUTE_STATIC;
  api.flags =0; // correct value unknown
  api.message = ZAPI_MESSAGE_NEXTHOP | ZAPI_MESSAGE_METRIC;
  api.nexthop_num = 1;
  api.ifindex_num = 0;
  inet_pton(AF_INET, "100.100.100.1", &nexthop[0].s_addr);
  nexthop_p = nexthop;
  api.nexthop = &nexthop_p;
  ifindex = 1; //is 1 equal to eth0?
  api.ifindex = &ifindex;
  api.distance = 0;
  api.metric = 10;

  printf("zapi ip4 route call\n");
  zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, &routeToAdd, &api);
  printf("zapi ip4 route call END\n");
}
Exemple #2
0
/* Send ECMP routes to zebra. */
static void
rip_zebra_ipv4_send (struct route_node *rp, u_char cmd)
{
  static struct in_addr **nexthops = NULL;
  static unsigned int nexthops_len = 0;

  struct list *list = (struct list *)rp->info;
  struct zapi_ipv4 api;
  struct listnode *listnode = NULL;
  struct rip_info *rinfo = NULL;
  int count = 0;

  if (vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_RIP], VRF_DEFAULT))
    {
      api.vrf_id = VRF_DEFAULT;
      api.type = ZEBRA_ROUTE_RIP;
      api.flags = 0;
      api.message = 0;
      api.safi = SAFI_UNICAST;

      if (nexthops_len < listcount (list))
        {
          nexthops_len = listcount (list);
          nexthops = XREALLOC (MTYPE_TMP, nexthops,
                               nexthops_len * sizeof (struct in_addr *));
        }

      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo))
        {
          nexthops[count++] = &rinfo->nexthop;
          if (cmd == ZEBRA_IPV4_ROUTE_ADD)
            SET_FLAG (rinfo->flags, RIP_RTF_FIB);
          else
            UNSET_FLAG (rinfo->flags, RIP_RTF_FIB);
        }

      api.nexthop = nexthops;
      api.nexthop_num = count;
      api.ifindex_num = 0;

      rinfo = listgetdata (listhead (list));

      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = rinfo->metric;

      if (rinfo->distance && rinfo->distance != ZEBRA_RIP_DISTANCE_DEFAULT)
        {
          SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE);
          api.distance = rinfo->distance;
        }

      zapi_ipv4_route (cmd, zclient,
                       (struct prefix_ipv4 *)&rp->p, &api);

      rip_global_route_changes++;
    }
Exemple #3
0
void
isis_zebra_route_del_ipv4 (struct prefix *prefix,
                           struct isis_route_info *route_info)
{
    struct zapi_ipv4 api;
    struct prefix_ipv4 prefix4;

    if (zclient->redist[ZEBRA_ROUTE_ISIS])
    {
        api.type = ZEBRA_ROUTE_ISIS;
        api.flags = 0;
        api.message = 0;
        prefix4.family = AF_INET;
        prefix4.prefixlen = prefix->prefixlen;
        prefix4.prefix = prefix->u.prefix4;
        zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, &prefix4, &api);
    }

    return;
}
Exemple #4
0
void
rip_zebra_ipv4_add (struct prefix_ipv4 *p, struct in_addr *nexthop, 
		    u_int32_t metric, u_char distance)
{
  struct zapi_ipv4 api;
#if 0
  if(current_rip_entry>=rip_max_entry)
  {
	  if(IS_RIP_DEBUG_ZEBRA)
	  {
		  zlog_info ("Discards rip packet for current rip entry over MAX ENTRY\n"); 	  
		  zlog_info ("current_rip_entry=%d\nrip_max_entry=%d\n",current_rip_entry,rip_max_entry);
	  }
  	  return ;
  }

#endif
  if (zclient->redist[ZEBRA_ROUTE_RIP])
    {
      api.type = ZEBRA_ROUTE_RIP;
      api.flags = 0;
      api.message = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = metric;

      if (distance && distance != ZEBRA_RIP_DISTANCE_DEFAULT)
	{
	  SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE);
	  api.distance = distance;
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, p, &api);
	  current_rip_entry++;

      rip_global_route_changes++;
    }
}
Exemple #5
0
void
rip_zebra_ipv4_delete (struct prefix_ipv4 *p, struct in_addr *nexthop, 
		       u_int32_t metric)
{
  struct zapi_ipv4 api;

  if (zclient->redist[ZEBRA_ROUTE_RIP])
    {
      api.type = ZEBRA_ROUTE_RIP;
      api.flags = 0;
      api.message = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = metric;

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, p, &api);
	  current_rip_entry--;

      rip_global_route_changes++;
    }
}
Exemple #6
0
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
  int flags;
  struct peer *peer;

  if (zclient->sock < 0)
    return;

  if (! zclient->redist[ZEBRA_ROUTE_BGP])
    return;

  peer = info->peer;
  flags = 0;

  if (peer->sort == BGP_PEER_IBGP)
    {
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;
      struct in_addr *nexthop;

      api.flags = flags;
      nexthop = &info->attr->nexthop;

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route delete %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }
#ifdef HAVE_IPV6
  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      struct zapi_ipv6 api;
      unsigned int ifindex;
      struct in6_addr *nexthop;
      
      assert (info->attr->extra);
      
      ifindex = 0;
      nexthop = NULL;

      /* Only global address nexthop exists. */
      if (info->attr->extra->mp_nexthop_len == 16)
	nexthop = &info->attr->extra->mp_nexthop_global;

      /* If both global and link-local address present. */
      if (info->attr->extra->mp_nexthop_len == 32)
	{
	  nexthop = &info->attr->extra->mp_nexthop_local;
	  if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      if (nexthop == NULL)
	return;

      if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
	if (info->peer->ifname)
	  ifindex = if_nametoindex (info->peer->ifname);

      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route delete %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
#endif /* HAVE_IPV6 */
}
Exemple #7
0
void
bgp_zebra_announce (struct prefix *p, struct bgp_info *info, struct bgp *bgp, safi_t safi)
{
  int flags;
  u_char distance;
  struct peer *peer;
  struct bgp_info *mpinfo;
  size_t oldsize, newsize;

  if (zclient->sock < 0)
    return;

  if (! zclient->redist[ZEBRA_ROUTE_BGP])
    return;

  flags = 0;
  peer = info->peer;

  if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED)
    {
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  /* resize nexthop buffer size if necessary */
  if ((oldsize = stream_get_size (bgp_nexthop_buf)) <
      (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1)))
    {
      newsize = (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1));
      newsize = stream_resize (bgp_nexthop_buf, newsize);
      if (newsize == oldsize)
	{
	  zlog_err ("can't resize nexthop buffer");
	  return;
	}
    }

  stream_reset (bgp_nexthop_buf);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;
      struct in_addr *nexthop;

      api.flags = flags;
      nexthop = &info->attr->nexthop;
      stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
      for (mpinfo = bgp_info_mpath_first (info); mpinfo;
	   mpinfo = bgp_info_mpath_next (mpinfo))
	{
	  nexthop = &mpinfo->attr->nexthop;
	  stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
	}

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1 + bgp_info_mpath_count (info);
      api.nexthop = (struct in_addr **)STREAM_DATA (bgp_nexthop_buf);
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      distance = bgp_distance_apply (p, info, bgp);

      if (distance)
	{
	  SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE);
	  api.distance = distance;
	}

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  int i;
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route add %s/%d nexthop %s metric %u"
		     " count %d",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET, api.nexthop[0], buf[1], sizeof(buf[1])),
		     api.metric, api.nexthop_num);
	  for (i = 1; i < api.nexthop_num; i++)
	    zlog_debug("Zebra send: IPv4 route add [nexthop %d] %s",
		       i, inet_ntop(AF_INET, api.nexthop[i], buf[1],
				    sizeof(buf[1])));
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }
#ifdef HAVE_IPV6
  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      unsigned int ifindex;
      struct in6_addr *nexthop;
      struct zapi_ipv6 api;

      ifindex = 0;
      nexthop = NULL;
      
      assert (info->attr->extra);
      
      /* Only global address nexthop exists. */
      if (info->attr->extra->mp_nexthop_len == 16)
	nexthop = &info->attr->extra->mp_nexthop_global;
      
      /* If both global and link-local address present. */
      if (info->attr->extra->mp_nexthop_len == 32)
	{
	  /* Workaround for Cisco's nexthop bug.  */
	  if (IN6_IS_ADDR_UNSPECIFIED (&info->attr->extra->mp_nexthop_global)
	      && peer->su_remote->sa.sa_family == AF_INET6)
	    nexthop = &peer->su_remote->sin6.sin6_addr;
	  else
	    nexthop = &info->attr->extra->mp_nexthop_local;

	  if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      if (nexthop == NULL)
	return;

      if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
	{
	  if (info->peer->ifname)
	    ifindex = if_nametoindex (info->peer->ifname);
	  else if (info->peer->nexthop.ifp)
	    ifindex = info->peer->nexthop.ifp->ifindex;
	}

      /* Make Zebra API structure. */
      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
      api.nexthop_num = 1;
      api.nexthop = &nexthop;
      SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
      api.ifindex_num = 1;
      api.ifindex = &ifindex;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route add %s/%d nexthop %s metric %u",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
		     api.metric);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
#endif /* HAVE_IPV6 */
}
Exemple #8
0
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
  int flags;
  struct peer *peer;

  if (zclient->sock < 0)
    return;

  if (! vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_BGP], VRF_DEFAULT))
    return;

  peer = info->peer;
  flags = 0;

  if (peer->sort == BGP_PEER_IBGP)
    {
      SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
      SET_FLAG (flags, ZEBRA_FLAG_IBGP);
    }

  if ((peer->sort == BGP_PEER_EBGP && peer_ttl (peer) != 1)
      || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
    SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);

  if (p->family == AF_INET)
    {
      struct zapi_ipv4 api;

      api.vrf_id = VRF_DEFAULT;
      api.flags = flags;

      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      api.nexthop_num = 0;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if ((info->attr->extra) && (info->attr->extra->tag != 0))
        {
          SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
          api.tag = info->attr->extra->tag;
        }

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv4 route delete %s/%d metric %u tag %d",
		     inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     api.metric,
		     api.tag);
	}

      zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv4 *) p, &api);
    }

  /* We have to think about a IPv6 link-local address curse. */
  if (p->family == AF_INET6)
    {
      struct zapi_ipv6 api;
      
      api.vrf_id = VRF_DEFAULT;
      api.flags = flags;
      api.type = ZEBRA_ROUTE_BGP;
      api.message = 0;
      api.safi = safi;
      api.nexthop_num = 0;
      api.ifindex_num = 0;
      SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
      api.metric = info->attr->med;

      if ((info->attr->extra) && (info->attr->extra->tag != 0))
        {
          SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
          api.tag = info->attr->extra->tag;
        }

      if (BGP_DEBUG(zebra, ZEBRA))
	{
	  char buf[2][INET6_ADDRSTRLEN];
	  zlog_debug("Zebra send: IPv6 route delete %s/%d metric %u tag %d",
		     inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
		     p->prefixlen,
		     api.metric,
		     api.tag);
	}

      zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, 
                       (struct prefix_ipv6 *) p, &api);
    }
}