text: /*
   * Copyright (c) 2014-2015 Cisco Systems, Inc. All rights reserved.
   * Copyright (c) 2016      Research Organization for Information Science
   *                         and Technology (RIST). All rights reserved.
   * Copyright (c) 2017      Amazon.com, Inc. or its affiliates.
   *                         All Rights reserved.
   *
   * Portions of this software copied from libfabric
   * (https://github.com/ofiwg/libfabric)
   *
   * LICENSE_BEGIN
   *
   * BSD license:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - 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.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
   * COPYRIGHT HOLDER 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.
   *
   * LICENSE_END
   *
   *
   */
  
  #ifndef LIBNL_UTILS_H
  #define LIBNL_UTILS_H
  
  #include "libnl3_utils.h"
  
  struct prrte_reachable_netlink_sk {
      NL_HANDLE	*nlh;
      uint32_t	seq;
  };
  
  /* returns 0 if host is reachable, EHOSTUNREACH if the host
   * is not reachable, non-zero in other errors.
   *
   * If the route to the destination is through a gateway, *has_gateway
   * is set to 1.  Otherwise, it is set to 0.
   */
  int prrte_reachable_netlink_rt_lookup(uint32_t src_addr,
                                        uint32_t dst_addr, int oif,
                                        int *has_gateway);
  
  #if PRRTE_ENABLE_IPV6
  /* returns 0 if host is reachable, EHOSTUNREACH if the host
   * is not reachable, non-zero in other errors.
   *
   * If the route to the destination is through a gateway, *has_gateway
   * is set to 1.  Otherwise, it is set to 0.
   */
  int prrte_reachable_netlink_rt_lookup6(struct in6_addr *src_addr,
                                         struct in6_addr *dst_addr, int oif,
                                         int *has_gateway);
  #endif
  
  #endif /* LIBNL_UTILS_H */
  