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/*
 * Static Routing Information header
 * Copyright (C) 2016 Cumulus Networks
 *               Donald Sharp
 *
 * This file is part of Quagga.
 *
 * Quagga is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * Quagga is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
#ifndef __ZEBRA_STATIC_H__
#define __ZEBRA_STATIC_H__

/* Static route label information */
struct static_nh_label
{
  u_int8_t num_labels;
  u_int8_t reserved[3];
  mpls_label_t label[2];
};

typedef enum {
  STATIC_IFINDEX,
  STATIC_IPV4_GATEWAY,
  STATIC_BLACKHOLE,
  STATIC_IPV6_GATEWAY,
  STATIC_IPV6_GATEWAY_IFINDEX,
} zebra_static_types;

/* Static route information. */
struct static_route
{
  /* For linked list. */
  struct static_route *prev;
  struct static_route *next;

  /* VRF identifier. */
  vrf_id_t vrf_id;

  /* Administrative distance. */
  u_char distance;

  /* Tag */
  route_tag_t tag;

  /* Flag for this static route's type. */
  zebra_static_types type;

  /*
   * Nexthop value.
   *
   * Under IPv4 addr and ifindex are
   * used independentyly.
   * STATIC_IPV4_GATEWAY uses addr
   * STATIC_IFINDEX uses ifindex
   */
  union g_addr addr;
  ifindex_t ifindex;

  char ifname[INTERFACE_NAMSIZ + 1];

  /* bit flags */
  u_char flags;
/*
 see ZEBRA_FLAG_REJECT
     ZEBRA_FLAG_BLACKHOLE
 */

  /* Label information */
  struct static_nh_label snh_label;
};

extern void
static_install_route (afi_t afi, safi_t safi, struct prefix *p,
                      struct prefix_ipv6 *src_p, struct static_route *si);
extern void
static_uninstall_route (afi_t afi, safi_t safi, struct prefix *p,
                        struct prefix_ipv6 *src_p, struct static_route *si);

extern int
static_add_route (afi_t, safi_t safi, u_char type, struct prefix *p,
		  struct prefix_ipv6 *src_p,
		  union g_addr *gate, ifindex_t ifindex,
		  const char *ifname, u_char flags, route_tag_t tag,
		  u_char distance, struct zebra_vrf *zvrf,
		  struct static_nh_label *snh_label);

extern int
static_delete_route (afi_t, safi_t safi, u_char type, struct prefix *p,
		     struct prefix_ipv6 *src_p,
		     union g_addr *gate, ifindex_t ifindex, route_tag_t tag,
		     u_char distance, struct zebra_vrf *zvrf,
		     struct static_nh_label *snh_label);

int
zebra_static_ipv4 (struct vty *vty, safi_t safi, int add_cmd,
		   const char *dest_str, const char *mask_str,
		   const char *gate_str, const char *flag_str,
		   const char *tag_str, const char *distance_str,
		   const char *vrf_id_str, const char *label_str);

int
static_ipv6_func (struct vty *vty, int add_cmd, const char *dest_str,
		  const char *src_str,
		  const char *gate_str, const char *ifname,
		  const char *flag_str, const char *tag_str,
                  const char *distance_str, const char *vrf_id_str,
		  const char *label_str);

#endif