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/*
* OSPFv3 Not So Stubby Area implementation.
*
* Copyright (C) 2021 Kaushik Nath
* Copyright (C) 2021 Soman K.S
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef OSPF6_NSSA_H
#define OSPF6_NSSA_H
#define OSPF6_OPTION_NP 0x08
#define OSPF6_LS_INFINITY 0xffffff
#define OSPF6_OPT_N (1 << 3) /* Handling Type-7 LSA Capability */
#define OSPF6_DEBUG_NSSA 0x09
/* Debug option */
extern unsigned char config_debug_ospf6_nssa;
#define OSPF6_DEBUG_NSSA_ON() (config_debug_ospf6_nssa = 1)
#define OSPF6_DEBUG_NSSA_OFF() (config_debug_ospf6_nssa = 0)
#define IS_OSPF6_DEBUG_NSSA config_debug_ospf6_nssa
#define CHECK_LSA_TYPE_1_TO_5_OR_7(type) \
((type == OSPF6_ROUTER_LSA_MIN_SIZE) \
|| (type == OSPF6_NETWORK_LSA_MIN_SIZE) \
|| (type == OSPF6_LINK_LSA_MIN_SIZE) \
|| (type == OSPF6_INTRA_PREFIX_LSA_MIN_SIZE) \
|| (type == OSPF6_AS_NSSA_LSA))
#define OSPF6_LSA_APPROVED 0x08
#define OSPF6_LSA_LOCAL_XLT 0x40
#define OSPF6_ABR_TASK_DELAY 7
int ospf6_area_nssa_no_summary_set(struct ospf6 *ospf6, struct in_addr area_id);
int ospf6_area_nssa_unset(struct ospf6 *ospf6, struct ospf6_area *area);
int ospf6_area_nssa_set(struct ospf6 *ospf6, struct ospf6_area *area);
extern void ospf6_nssa_lsa_flush(struct ospf6 *ospf6, struct prefix_ipv6 *p);
extern struct ospf6_lsa *ospf6_translated_nssa_refresh(struct ospf6_area *,
struct ospf6_lsa *,
struct ospf6_lsa *);
extern struct ospf6_lsa *ospf6_translated_nssa_originate(struct ospf6_area *,
struct ospf6_lsa *);
extern void ospf6_asbr_nssa_redist_task(struct ospf6 *ospf6);
extern void ospf6_schedule_abr_task(struct ospf6 *ospf6);
extern void ospf6_area_nssa_update(struct ospf6_area *area);
void ospf6_asbr_prefix_readvertise(struct ospf6 *ospf6);
extern void ospf6_nssa_lsa_originate(struct ospf6_route *route,
struct ospf6_area *area);
extern void install_element_ospf6_debug_nssa(void);
int ospf6_redistribute_check(struct ospf6 *ospf6, struct ospf6_route *route,
int type);
extern int ospf6_abr_translate_nssa(struct ospf6_area *area,
struct ospf6_lsa *lsa);
extern void ospf6_abr_check_translate_nssa(struct ospf6_area *area,
struct ospf6_lsa *lsa);
extern void ospf6_abr_nssa_check_status(struct ospf6 *ospf6);
extern void config_write_ospf6_debug_nssa(struct vty *vty);
#endif /* OSPF6_NSSA_H */
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