[mirror_frr.git] / ospf6d / ospf6_lsa.h

/*
 * Copyright (C) 2003 Yasuhiro Ohara
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra 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.
 *
 * GNU Zebra 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 GNU Zebra; see the file COPYING.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef OSPF6_LSA_H
#define OSPF6_LSA_H

/* Debug option */
#define OSPF6_LSA_DEBUG           0x01
#define OSPF6_LSA_DEBUG_ORIGINATE 0x02
#define OSPF6_LSA_DEBUG_EXAMIN    0x04
#define OSPF6_LSA_DEBUG_FLOOD     0x08

#define IS_OSPF6_DEBUG_LSA(name)                                               \
	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) & OSPF6_LSA_DEBUG)
#define IS_OSPF6_DEBUG_ORIGINATE(name)                                         \
	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name))                        \
	 & OSPF6_LSA_DEBUG_ORIGINATE)
#define IS_OSPF6_DEBUG_EXAMIN(name)                                            \
	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name))                        \
	 & OSPF6_LSA_DEBUG_EXAMIN)
#define IS_OSPF6_DEBUG_LSA_TYPE(type)                                          \
	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG)
#define IS_OSPF6_DEBUG_ORIGINATE_TYPE(type)                                    \
	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_ORIGINATE)
#define IS_OSPF6_DEBUG_EXAMIN_TYPE(type)                                       \
	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_EXAMIN)
#define IS_OSPF6_DEBUG_FLOOD_TYPE(type)                                        \
	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_FLOOD)

/* LSA definition */

#define OSPF6_MAX_LSASIZE      4096

/* Type */
#define OSPF6_LSTYPE_UNKNOWN          0x0000
#define OSPF6_LSTYPE_ROUTER           0x2001
#define OSPF6_LSTYPE_NETWORK          0x2002
#define OSPF6_LSTYPE_INTER_PREFIX     0x2003
#define OSPF6_LSTYPE_INTER_ROUTER     0x2004
#define OSPF6_LSTYPE_AS_EXTERNAL      0x4005
#define OSPF6_LSTYPE_GROUP_MEMBERSHIP 0x2006
#define OSPF6_LSTYPE_TYPE_7           0x2007
#define OSPF6_LSTYPE_LINK             0x0008
#define OSPF6_LSTYPE_INTRA_PREFIX     0x2009
#define OSPF6_LSTYPE_SIZE             0x000a

/* Masks for LS Type : RFC 2740 A.4.2.1 "LS type" */
#define OSPF6_LSTYPE_UBIT_MASK        0x8000
#define OSPF6_LSTYPE_SCOPE_MASK       0x6000
#define OSPF6_LSTYPE_FCODE_MASK       0x1fff

/* LSA scope */
#define OSPF6_SCOPE_LINKLOCAL  0x0000
#define OSPF6_SCOPE_AREA       0x2000
#define OSPF6_SCOPE_AS         0x4000
#define OSPF6_SCOPE_RESERVED   0x6000

/* XXX U-bit handling should be treated here */
#define OSPF6_LSA_SCOPE(type) (ntohs(type) & OSPF6_LSTYPE_SCOPE_MASK)

/* LSA Header */
#define OSPF6_LSA_HEADER_SIZE                 20U
struct ospf6_lsa_header {
	u_int16_t age;	/* LS age */
	u_int16_t type;       /* LS type */
	u_int32_t id;	 /* Link State ID */
	u_int32_t adv_router; /* Advertising Router */
	u_int32_t seqnum;     /* LS sequence number */
	u_int16_t checksum;   /* LS checksum */
	u_int16_t length;     /* LSA length */
};

#define OSPF6_LSA_HEADER_END(h) ((caddr_t)(h) + sizeof(struct ospf6_lsa_header))
#define OSPF6_LSA_SIZE(h) (ntohs(((struct ospf6_lsa_header *)(h))->length))
#define OSPF6_LSA_END(h)                                                       \
	((caddr_t)(h) + ntohs(((struct ospf6_lsa_header *)(h))->length))
#define OSPF6_LSA_IS_TYPE(t, L)                                                \
	((L)->header->type == htons(OSPF6_LSTYPE_##t) ? 1 : 0)
#define OSPF6_LSA_IS_SAME(L1, L2)                                              \
	((L1)->header->adv_router == (L2)->header->adv_router                  \
	 && (L1)->header->id == (L2)->header->id                               \
	 && (L1)->header->type == (L2)->header->type)
#define OSPF6_LSA_IS_MATCH(t, i, a, L)                                         \
	((L)->header->adv_router == (a) && (L)->header->id == (i)              \
	 && (L)->header->type == (t))
#define OSPF6_LSA_IS_DIFFER(L1, L2)  ospf6_lsa_is_differ (L1, L2)
#define OSPF6_LSA_IS_MAXAGE(L) (ospf6_lsa_age_current (L) == OSPF_LSA_MAXAGE)
#define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2)
#define OSPF6_LSA_IS_SEQWRAP(L) ((L)->header->seqnum == htonl(OSPF_MAX_SEQUENCE_NUMBER + 1))

struct ospf6_lsa {
	char name[64]; /* dump string */

	struct route_node *rn;

	unsigned char lock; /* reference counter */
	unsigned char flag; /* special meaning (e.g. floodback) */

	struct timeval birth;      /* tv_sec when LS age 0 */
	struct timeval originated; /* used by MinLSInterval check */
	struct timeval received;   /* used by MinLSArrival check */
	struct timeval installed;

	struct thread *expire;
	struct thread *refresh; /* For self-originated LSA */

	int retrans_count;

	struct ospf6_lsdb *lsdb;

	/* lsa instance */
	struct ospf6_lsa_header *header;
};

#define OSPF6_LSA_HEADERONLY 0x01
#define OSPF6_LSA_FLOODBACK  0x02
#define OSPF6_LSA_DUPLICATE  0x04
#define OSPF6_LSA_IMPLIEDACK 0x08
#define OSPF6_LSA_UNAPPROVED 0x10
#define OSPF6_LSA_SEQWRAPPED 0x20

struct ospf6_lsa_handler {
	u_int16_t type; /* host byte order */
	const char *name;
	const char *short_name;
	int (*show)(struct vty *, struct ospf6_lsa *);
	char *(*get_prefix_str)(struct ospf6_lsa *, char *buf, int buflen,
				int pos);
	u_char debug;
};

extern struct ospf6_lsa_handler unknown_handler;
#define OSPF6_LSA_IS_KNOWN(type)                                               \
	(ospf6_get_lsa_handler(type) != &unknown_handler ? 1 : 0)

extern vector ospf6_lsa_handler_vector;

/* Macro for LSA Origination */
/* addr is (struct prefix *) */
#define CONTINUE_IF_ADDRESS_LINKLOCAL(debug, addr)                             \
	if (IN6_IS_ADDR_LINKLOCAL(&(addr)->u.prefix6)) {                       \
		char buf[PREFIX2STR_BUFFER];                                   \
		prefix2str(addr, buf, sizeof(buf));                            \
		if (debug)                                                     \
			zlog_debug("Filter out Linklocal: %s", buf);           \
		continue;                                                      \
	}

#define CONTINUE_IF_ADDRESS_UNSPECIFIED(debug, addr)                           \
	if (IN6_IS_ADDR_UNSPECIFIED(&(addr)->u.prefix6)) {                     \
		char buf[PREFIX2STR_BUFFER];                                   \
		prefix2str(addr, buf, sizeof(buf));                            \
		if (debug)                                                     \
			zlog_debug("Filter out Unspecified: %s", buf);         \
		continue;                                                      \
	}

#define CONTINUE_IF_ADDRESS_LOOPBACK(debug, addr)                              \
	if (IN6_IS_ADDR_LOOPBACK(&(addr)->u.prefix6)) {                        \
		char buf[PREFIX2STR_BUFFER];                                   \
		prefix2str(addr, buf, sizeof(buf));                            \
		if (debug)                                                     \
			zlog_debug("Filter out Loopback: %s", buf);            \
		continue;                                                      \
	}

#define CONTINUE_IF_ADDRESS_V4COMPAT(debug, addr)                              \
	if (IN6_IS_ADDR_V4COMPAT(&(addr)->u.prefix6)) {                        \
		char buf[PREFIX2STR_BUFFER];                                   \
		prefix2str(addr, buf, sizeof(buf));                            \
		if (debug)                                                     \
			zlog_debug("Filter out V4Compat: %s", buf);            \
		continue;                                                      \
	}

#define CONTINUE_IF_ADDRESS_V4MAPPED(debug, addr)                              \
	if (IN6_IS_ADDR_V4MAPPED(&(addr)->u.prefix6)) {                        \
		char buf[PREFIX2STR_BUFFER];                                   \
		prefix2str(addr, buf, sizeof(buf));                            \
		if (debug)                                                     \
			zlog_debug("Filter out V4Mapped: %s", buf);            \
		continue;                                                      \
	}


/* Function Prototypes */
extern const char *ospf6_lstype_name(u_int16_t type);
extern const char *ospf6_lstype_short_name(u_int16_t type);
extern u_char ospf6_lstype_debug(u_int16_t type);
extern int ospf6_lsa_is_differ(struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2);
extern int ospf6_lsa_is_changed(struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2);
extern u_int16_t ospf6_lsa_age_current(struct ospf6_lsa *);
extern void ospf6_lsa_age_update_to_send(struct ospf6_lsa *, u_int32_t);
extern void ospf6_lsa_premature_aging(struct ospf6_lsa *);
extern int ospf6_lsa_compare(struct ospf6_lsa *, struct ospf6_lsa *);

extern char *ospf6_lsa_printbuf(struct ospf6_lsa *lsa, char *buf, int size);
extern void ospf6_lsa_header_print_raw(struct ospf6_lsa_header *header);
extern void ospf6_lsa_header_print(struct ospf6_lsa *lsa);
extern void ospf6_lsa_show_summary_header(struct vty *vty);
extern void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa);
extern void ospf6_lsa_show_dump(struct vty *vty, struct ospf6_lsa *lsa);
extern void ospf6_lsa_show_internal(struct vty *vty, struct ospf6_lsa *lsa);
extern void ospf6_lsa_show(struct vty *vty, struct ospf6_lsa *lsa);

extern struct ospf6_lsa *ospf6_lsa_create(struct ospf6_lsa_header *header);
extern struct ospf6_lsa *
ospf6_lsa_create_headeronly(struct ospf6_lsa_header *header);
extern void ospf6_lsa_delete(struct ospf6_lsa *lsa);
extern struct ospf6_lsa *ospf6_lsa_copy(struct ospf6_lsa *);

extern void ospf6_lsa_lock(struct ospf6_lsa *);
extern void ospf6_lsa_unlock(struct ospf6_lsa *);

extern int ospf6_lsa_expire(struct thread *);
extern int ospf6_lsa_refresh(struct thread *);

extern unsigned short ospf6_lsa_checksum(struct ospf6_lsa_header *);
extern int ospf6_lsa_checksum_valid(struct ospf6_lsa_header *);
extern int ospf6_lsa_prohibited_duration(u_int16_t type, u_int32_t id,
					 u_int32_t adv_router, void *scope);

extern void ospf6_install_lsa_handler(struct ospf6_lsa_handler *handler);
extern struct ospf6_lsa_handler *ospf6_get_lsa_handler(u_int16_t type);

extern void ospf6_lsa_init(void);
extern void ospf6_lsa_terminate(void);

extern int config_write_ospf6_debug_lsa(struct vty *vty);
extern void install_element_ospf6_debug_lsa(void);

#endif /* OSPF6_LSA_H */
Commit	Line	Data
718e3744	1	/*
508e53e2	2	* Copyright (C) 2003 Yasuhiro Ohara
718e3744	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
ac4d0be5	17	* along with GNU Zebra; see the file COPYING. If not, write to the
	18	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	19	* Boston, MA 02111-1307, USA.
718e3744	20	*/
	21
	22	#ifndef OSPF6_LSA_H
	23	#define OSPF6_LSA_H
	24
508e53e2	25	/* Debug option */
1e05838a	26	#define OSPF6_LSA_DEBUG 0x01
	27	#define OSPF6_LSA_DEBUG_ORIGINATE 0x02
	28	#define OSPF6_LSA_DEBUG_EXAMIN 0x04
	29	#define OSPF6_LSA_DEBUG_FLOOD 0x08
	30
ac4d0be5	31	#define IS_OSPF6_DEBUG_LSA(name) \
	32	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) & OSPF6_LSA_DEBUG)
	33	#define IS_OSPF6_DEBUG_ORIGINATE(name) \
	34	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) \
	35	& OSPF6_LSA_DEBUG_ORIGINATE)
	36	#define IS_OSPF6_DEBUG_EXAMIN(name) \
	37	(ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) \
	38	& OSPF6_LSA_DEBUG_EXAMIN)
	39	#define IS_OSPF6_DEBUG_LSA_TYPE(type) \
	40	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG)
	41	#define IS_OSPF6_DEBUG_ORIGINATE_TYPE(type) \
	42	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_ORIGINATE)
	43	#define IS_OSPF6_DEBUG_EXAMIN_TYPE(type) \
	44	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_EXAMIN)
	45	#define IS_OSPF6_DEBUG_FLOOD_TYPE(type) \
	46	(ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_FLOOD)
718e3744	47
	48	/* LSA definition */
	49
508e53e2	50	#define OSPF6_MAX_LSASIZE 4096
718e3744	51
718e3744	52	/* Type */
508e53e2	53	#define OSPF6_LSTYPE_UNKNOWN 0x0000
	54	#define OSPF6_LSTYPE_ROUTER 0x2001
	55	#define OSPF6_LSTYPE_NETWORK 0x2002
	56	#define OSPF6_LSTYPE_INTER_PREFIX 0x2003
	57	#define OSPF6_LSTYPE_INTER_ROUTER 0x2004
	58	#define OSPF6_LSTYPE_AS_EXTERNAL 0x4005
	59	#define OSPF6_LSTYPE_GROUP_MEMBERSHIP 0x2006
	60	#define OSPF6_LSTYPE_TYPE_7 0x2007
	61	#define OSPF6_LSTYPE_LINK 0x0008
	62	#define OSPF6_LSTYPE_INTRA_PREFIX 0x2009
	63	#define OSPF6_LSTYPE_SIZE 0x000a
718e3744	64
	65	/* Masks for LS Type : RFC 2740 A.4.2.1 "LS type" */
	66	#define OSPF6_LSTYPE_UBIT_MASK 0x8000
	67	#define OSPF6_LSTYPE_SCOPE_MASK 0x6000
508e53e2	68	#define OSPF6_LSTYPE_FCODE_MASK 0x1fff
718e3744	69
508e53e2	70	/* LSA scope */
6452df09	71	#define OSPF6_SCOPE_LINKLOCAL 0x0000
	72	#define OSPF6_SCOPE_AREA 0x2000
	73	#define OSPF6_SCOPE_AS 0x4000
	74	#define OSPF6_SCOPE_RESERVED 0x6000
718e3744	75
6452df09	76	/* XXX U-bit handling should be treated here */
ac4d0be5	77	#define OSPF6_LSA_SCOPE(type) (ntohs(type) & OSPF6_LSTYPE_SCOPE_MASK)
718e3744	78
718e3744	79	/* LSA Header */
abc7ef44	80	#define OSPF6_LSA_HEADER_SIZE 20U
ac4d0be5	81	struct ospf6_lsa_header {
	82	u_int16_t age; /* LS age */
	83	u_int16_t type; /* LS type */
	84	u_int32_t id; /* Link State ID */
	85	u_int32_t adv_router; /* Advertising Router */
	86	u_int32_t seqnum; /* LS sequence number */
	87	u_int16_t checksum; /* LS checksum */
	88	u_int16_t length; /* LSA length */
718e3744	89	};
718e3744	90
ac4d0be5	91	#define OSPF6_LSA_HEADER_END(h) ((caddr_t)(h) + sizeof(struct ospf6_lsa_header))
	92	#define OSPF6_LSA_SIZE(h) (ntohs(((struct ospf6_lsa_header *)(h))->length))
	93	#define OSPF6_LSA_END(h) \
	94	((caddr_t)(h) + ntohs(((struct ospf6_lsa_header *)(h))->length))
	95	#define OSPF6_LSA_IS_TYPE(t, L) \
	96	((L)->header->type == htons(OSPF6_LSTYPE_##t) ? 1 : 0)
	97	#define OSPF6_LSA_IS_SAME(L1, L2) \
	98	((L1)->header->adv_router == (L2)->header->adv_router \
	99	&& (L1)->header->id == (L2)->header->id \
	100	&& (L1)->header->type == (L2)->header->type)
	101	#define OSPF6_LSA_IS_MATCH(t, i, a, L) \
	102	((L)->header->adv_router == (a) && (L)->header->id == (i) \
	103	&& (L)->header->type == (t))
508e53e2	104	#define OSPF6_LSA_IS_DIFFER(L1, L2) ospf6_lsa_is_differ (L1, L2)
8551e6da	105	#define OSPF6_LSA_IS_MAXAGE(L) (ospf6_lsa_age_current (L) == OSPF_LSA_MAXAGE)
508e53e2	106	#define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2)
3b220289 DD	107	#define OSPF6_LSA_IS_SEQWRAP(L) ((L)->header->seqnum == htonl(OSPF_MAX_SEQUENCE_NUMBER + 1))
3b220289 DD	108
ac4d0be5	109	struct ospf6_lsa {
ac4d0be5	110	char name[64]; /* dump string */
718e3744	111
ac4d0be5	112	struct route_node *rn;
718e3744	113
ac4d0be5	114	unsigned char lock; /* reference counter */
ac4d0be5	115	unsigned char flag; /* special meaning (e.g. floodback) */
718e3744	116
ac4d0be5	117	struct timeval birth; /* tv_sec when LS age 0 */
	118	struct timeval originated; /* used by MinLSInterval check */
	119	struct timeval received; /* used by MinLSArrival check */
	120	struct timeval installed;
718e3744	121
ac4d0be5	122	struct thread *expire;
ac4d0be5	123	struct thread refresh; / For self-originated LSA */
718e3744	124
ac4d0be5	125	int retrans_count;
718e3744	126
ac4d0be5	127	struct ospf6_lsdb *lsdb;
6452df09	128
ac4d0be5	129	/* lsa instance */
ac4d0be5	130	struct ospf6_lsa_header *header;
718e3744	131	};
718e3744	132
6452df09	133	#define OSPF6_LSA_HEADERONLY 0x01
	134	#define OSPF6_LSA_FLOODBACK 0x02
	135	#define OSPF6_LSA_DUPLICATE 0x04
	136	#define OSPF6_LSA_IMPLIEDACK 0x08
ca1f4309	137	#define OSPF6_LSA_UNAPPROVED 0x10
3b220289	138	#define OSPF6_LSA_SEQWRAPPED 0x20
508e53e2	139
ac4d0be5	140	struct ospf6_lsa_handler {
	141	u_int16_t type; /* host byte order */
	142	const char *name;
	143	const char *short_name;
	144	int (show)(struct vty , struct ospf6_lsa *);
	145	char (get_prefix_str)(struct ospf6_lsa , char buf, int buflen,
	146	int pos);
	147	u_char debug;
508e53e2	148	};
508e53e2	149
2680aa2b	150	extern struct ospf6_lsa_handler unknown_handler;
ac4d0be5	151	#define OSPF6_LSA_IS_KNOWN(type) \
ac4d0be5	152	(ospf6_get_lsa_handler(type) != &unknown_handler ? 1 : 0)
2680aa2b	153
4dfd8aff DW	154	extern vector ospf6_lsa_handler_vector;
4dfd8aff DW	155
508e53e2	156	/* Macro for LSA Origination */
1e05838a	157	/* addr is (struct prefix ) /
ac4d0be5	158	#define CONTINUE_IF_ADDRESS_LINKLOCAL(debug, addr) \
	159	if (IN6_IS_ADDR_LINKLOCAL(&(addr)->u.prefix6)) { \
	160	char buf[PREFIX2STR_BUFFER]; \
	161	prefix2str(addr, buf, sizeof(buf)); \
	162	if (debug) \
	163	zlog_debug("Filter out Linklocal: %s", buf); \
	164	continue; \
	165	}
	166
	167	#define CONTINUE_IF_ADDRESS_UNSPECIFIED(debug, addr) \
	168	if (IN6_IS_ADDR_UNSPECIFIED(&(addr)->u.prefix6)) { \
	169	char buf[PREFIX2STR_BUFFER]; \
	170	prefix2str(addr, buf, sizeof(buf)); \
	171	if (debug) \
	172	zlog_debug("Filter out Unspecified: %s", buf); \
	173	continue; \
	174	}
	175
	176	#define CONTINUE_IF_ADDRESS_LOOPBACK(debug, addr) \
	177	if (IN6_IS_ADDR_LOOPBACK(&(addr)->u.prefix6)) { \
	178	char buf[PREFIX2STR_BUFFER]; \
	179	prefix2str(addr, buf, sizeof(buf)); \
	180	if (debug) \
	181	zlog_debug("Filter out Loopback: %s", buf); \
	182	continue; \
	183	}
	184
	185	#define CONTINUE_IF_ADDRESS_V4COMPAT(debug, addr) \
	186	if (IN6_IS_ADDR_V4COMPAT(&(addr)->u.prefix6)) { \
	187	char buf[PREFIX2STR_BUFFER]; \
	188	prefix2str(addr, buf, sizeof(buf)); \
	189	if (debug) \
	190	zlog_debug("Filter out V4Compat: %s", buf); \
	191	continue; \
	192	}
	193
	194	#define CONTINUE_IF_ADDRESS_V4MAPPED(debug, addr) \
	195	if (IN6_IS_ADDR_V4MAPPED(&(addr)->u.prefix6)) { \
	196	char buf[PREFIX2STR_BUFFER]; \
	197	prefix2str(addr, buf, sizeof(buf)); \
	198	if (debug) \
	199	zlog_debug("Filter out V4Mapped: %s", buf); \
	200	continue; \
	201	}
718e3744	202
6b0655a2	203
718e3744	204	/* Function Prototypes */
ac4d0be5	205	extern const char *ospf6_lstype_name(u_int16_t type);
	206	extern const char *ospf6_lstype_short_name(u_int16_t type);
	207	extern u_char ospf6_lstype_debug(u_int16_t type);
	208	extern int ospf6_lsa_is_differ(struct ospf6_lsa lsa1, struct ospf6_lsa lsa2);
	209	extern int ospf6_lsa_is_changed(struct ospf6_lsa lsa1, struct ospf6_lsa lsa2);
	210	extern u_int16_t ospf6_lsa_age_current(struct ospf6_lsa *);
	211	extern void ospf6_lsa_age_update_to_send(struct ospf6_lsa *, u_int32_t);
	212	extern void ospf6_lsa_premature_aging(struct ospf6_lsa *);
	213	extern int ospf6_lsa_compare(struct ospf6_lsa , struct ospf6_lsa );
	214
	215	extern char ospf6_lsa_printbuf(struct ospf6_lsa lsa, char *buf, int size);
	216	extern void ospf6_lsa_header_print_raw(struct ospf6_lsa_header *header);
	217	extern void ospf6_lsa_header_print(struct ospf6_lsa *lsa);
	218	extern void ospf6_lsa_show_summary_header(struct vty *vty);
	219	extern void ospf6_lsa_show_summary(struct vty vty, struct ospf6_lsa lsa);
	220	extern void ospf6_lsa_show_dump(struct vty vty, struct ospf6_lsa lsa);
	221	extern void ospf6_lsa_show_internal(struct vty vty, struct ospf6_lsa lsa);
	222	extern void ospf6_lsa_show(struct vty vty, struct ospf6_lsa lsa);
	223
	224	extern struct ospf6_lsa ospf6_lsa_create(struct ospf6_lsa_header header);
	225	extern struct ospf6_lsa *
	226	ospf6_lsa_create_headeronly(struct ospf6_lsa_header *header);
	227	extern void ospf6_lsa_delete(struct ospf6_lsa *lsa);
	228	extern struct ospf6_lsa ospf6_lsa_copy(struct ospf6_lsa );
	229
	230	extern void ospf6_lsa_lock(struct ospf6_lsa *);
	231	extern void ospf6_lsa_unlock(struct ospf6_lsa *);
	232
	233	extern int ospf6_lsa_expire(struct thread *);
	234	extern int ospf6_lsa_refresh(struct thread *);
	235
	236	extern unsigned short ospf6_lsa_checksum(struct ospf6_lsa_header *);
	237	extern int ospf6_lsa_checksum_valid(struct ospf6_lsa_header *);
	238	extern int ospf6_lsa_prohibited_duration(u_int16_t type, u_int32_t id,
	239	u_int32_t adv_router, void *scope);
	240
	241	extern void ospf6_install_lsa_handler(struct ospf6_lsa_handler *handler);
	242	extern struct ospf6_lsa_handler *ospf6_get_lsa_handler(u_int16_t type);
	243
	244	extern void ospf6_lsa_init(void);
	245	extern void ospf6_lsa_terminate(void);
	246
	247	extern int config_write_ospf6_debug_lsa(struct vty *vty);
	248	extern void install_element_ospf6_debug_lsa(void);
718e3744	249
718e3744	250	#endif /* OSPF6_LSA_H */