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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* OSPFv3 Not So Stubby Area implementation.
*
* Copyright (C) 2021 Kaushik Nath
* Copyright (C) 2021 Soman K.S
*/
#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 5
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 *oa,
struct ospf6_lsa *type7,
struct ospf6_lsa *type5);
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, bool p_bit);
extern void install_element_ospf6_debug_nssa(void);
extern void ospf6_abr_nssa_type_7_defaults(struct ospf6 *osof6);
int ospf6_redistribute_check(struct ospf6 *ospf6, struct ospf6_route *route,
int type);
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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