[mirror_frr.git] / isisd / isis_tlvs.h

/*
 * IS-IS TLV Serializer/Deserializer
 *
 * Copyright (C) 2015,2017 Christian Franke
 *
 * This file is part of FRR.
 *
 * FRR 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.
 *
 * FRR 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 FRR; see the file COPYING.  If not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */
#ifndef ISIS_TLVS_H
#define ISIS_TLVS_H

#include "openbsd-tree.h"
#include "prefix.h"
#include "isisd/dict.h"

struct isis_subtlvs;

struct isis_area_address;
struct isis_area_address {
	struct isis_area_address *next;

	uint8_t addr[20];
	uint8_t len;
};

struct isis_oldstyle_reach;
struct isis_oldstyle_reach {
	struct isis_oldstyle_reach *next;

	uint8_t id[7];
	uint8_t metric;
};

struct isis_oldstyle_ip_reach;
struct isis_oldstyle_ip_reach {
	struct isis_oldstyle_ip_reach *next;

	uint8_t metric;
	struct prefix_ipv4 prefix;
};

struct isis_lsp_entry;
struct isis_lsp_entry {
	struct isis_lsp_entry *next;

	uint16_t rem_lifetime;
	uint8_t id[8];
	uint16_t checksum;
	uint32_t seqno;

	struct isis_lsp *lsp;
};

struct isis_extended_reach;
struct isis_extended_reach {
	struct isis_extended_reach *next;

	uint8_t id[7];
	uint32_t metric;

	uint8_t *subtlvs;
	uint8_t subtlv_len;
};

struct isis_extended_ip_reach;
struct isis_extended_ip_reach {
	struct isis_extended_ip_reach *next;

	uint32_t metric;
	bool down;
	struct prefix_ipv4 prefix;
};

struct isis_ipv6_reach;
struct isis_ipv6_reach {
	struct isis_ipv6_reach *next;

	uint32_t metric;
	bool down;
	bool external;

	struct prefix_ipv6 prefix;

	struct isis_subtlvs *subtlvs;
};

struct isis_protocols_supported {
	uint8_t count;
	uint8_t *protocols;
};

#define ISIS_TIER_UNDEFINED 15

struct isis_spine_leaf {
	uint8_t tier;

	bool has_tier;
	bool is_leaf;
	bool is_spine;
	bool is_backup;
};

enum isis_threeway_state {
	ISIS_THREEWAY_DOWN = 2,
	ISIS_THREEWAY_INITIALIZING = 1,
	ISIS_THREEWAY_UP = 0
};

struct isis_threeway_adj {
	enum isis_threeway_state state;
	uint32_t local_circuit_id;
	bool neighbor_set;
	uint8_t neighbor_id[6];
	uint32_t neighbor_circuit_id;
};

struct isis_item;
struct isis_item {
	struct isis_item *next;
};

struct isis_lan_neighbor;
struct isis_lan_neighbor {
	struct isis_lan_neighbor *next;

	uint8_t mac[6];
};

struct isis_ipv4_address;
struct isis_ipv4_address {
	struct isis_ipv4_address *next;

	struct in_addr addr;
};

struct isis_ipv6_address;
struct isis_ipv6_address {
	struct isis_ipv6_address *next;

	struct in6_addr addr;
};

struct isis_mt_router_info;
struct isis_mt_router_info {
	struct isis_mt_router_info *next;

	bool overload;
	bool attached;
	uint16_t mtid;
};

struct isis_auth;
struct isis_auth {
	struct isis_auth *next;

	uint8_t type;
	uint8_t length;
	uint8_t value[256];

	uint8_t plength;
	uint8_t passwd[256];

	size_t offset; /* Only valid after packing */
};

struct isis_item_list;
struct isis_item_list {
	struct isis_item *head;
	struct isis_item **tail;

	RB_ENTRY(isis_item_list) mt_tree;
	uint16_t mtid;
	unsigned int count;
};

RB_HEAD(isis_mt_item_list, isis_item_list);

struct isis_item_list *isis_get_mt_items(struct isis_mt_item_list *m,
					 uint16_t mtid);
struct isis_item_list *isis_lookup_mt_items(struct isis_mt_item_list *m,
					    uint16_t mtid);

struct isis_tlvs {
	struct isis_item_list isis_auth;
	struct isis_item_list area_addresses;
	struct isis_item_list oldstyle_reach;
	struct isis_item_list lan_neighbor;
	struct isis_item_list lsp_entries;
	struct isis_item_list extended_reach;
	struct isis_mt_item_list mt_reach;
	struct isis_item_list oldstyle_ip_reach;
	struct isis_protocols_supported protocols_supported;
	struct isis_item_list oldstyle_ip_reach_ext;
	struct isis_item_list ipv4_address;
	struct isis_item_list ipv6_address;
	struct isis_item_list mt_router_info;
	bool mt_router_info_empty;
	struct in_addr *te_router_id;
	struct isis_item_list extended_ip_reach;
	struct isis_mt_item_list mt_ip_reach;
	char *hostname;
	struct isis_item_list ipv6_reach;
	struct isis_mt_item_list mt_ipv6_reach;
	struct isis_threeway_adj *threeway_adj;
	struct isis_spine_leaf *spine_leaf;
};

struct isis_subtlvs {
	/* draft-baker-ipv6-isis-dst-src-routing-06 */
	struct prefix_ipv6 *source_prefix;
};

enum isis_tlv_context {
	ISIS_CONTEXT_LSP,
	ISIS_CONTEXT_SUBTLV_NE_REACH,
	ISIS_CONTEXT_SUBTLV_IP_REACH,
	ISIS_CONTEXT_SUBTLV_IPV6_REACH,
	ISIS_CONTEXT_MAX
};

enum isis_tlv_type {
	ISIS_TLV_AREA_ADDRESSES = 1,
	ISIS_TLV_OLDSTYLE_REACH = 2,
	ISIS_TLV_LAN_NEIGHBORS = 6,
	ISIS_TLV_PADDING = 8,
	ISIS_TLV_LSP_ENTRY = 9,
	ISIS_TLV_AUTH = 10,
	ISIS_TLV_EXTENDED_REACH = 22,

	ISIS_TLV_OLDSTYLE_IP_REACH = 128,
	ISIS_TLV_PROTOCOLS_SUPPORTED = 129,
	ISIS_TLV_OLDSTYLE_IP_REACH_EXT = 130,
	ISIS_TLV_IPV4_ADDRESS = 132,
	ISIS_TLV_TE_ROUTER_ID = 134,
	ISIS_TLV_EXTENDED_IP_REACH = 135,
	ISIS_TLV_DYNAMIC_HOSTNAME = 137,
	ISIS_TLV_SPINE_LEAF_EXT = 150,
	ISIS_TLV_MT_REACH = 222,
	ISIS_TLV_MT_ROUTER_INFO = 229,
	ISIS_TLV_IPV6_ADDRESS = 232,
	ISIS_TLV_MT_IP_REACH = 235,
	ISIS_TLV_IPV6_REACH = 236,
	ISIS_TLV_MT_IPV6_REACH = 237,
	ISIS_TLV_THREE_WAY_ADJ = 240,
	ISIS_TLV_MAX = 256,

	ISIS_SUBTLV_IPV6_SOURCE_PREFIX = 22
};

#define IS_COMPAT_MT_TLV(tlv_type)                                             \
	((tlv_type == ISIS_TLV_MT_REACH) || (tlv_type == ISIS_TLV_MT_IP_REACH) \
	 || (tlv_type == ISIS_TLV_MT_IPV6_REACH))

struct stream;
int isis_pack_tlvs(struct isis_tlvs *tlvs, struct stream *stream,
		   size_t len_pointer, bool pad, bool is_lsp);
void isis_free_tlvs(struct isis_tlvs *tlvs);
struct isis_tlvs *isis_alloc_tlvs(void);
int isis_unpack_tlvs(size_t avail_len, struct stream *stream,
		     struct isis_tlvs **dest, const char **error_log);
const char *isis_format_tlvs(struct isis_tlvs *tlvs);
struct isis_tlvs *isis_copy_tlvs(struct isis_tlvs *tlvs);
struct list *isis_fragment_tlvs(struct isis_tlvs *tlvs, size_t size);

#define ISIS_EXTENDED_IP_REACH_DOWN 0x80
#define ISIS_EXTENDED_IP_REACH_SUBTLV 0x40

#define ISIS_IPV6_REACH_DOWN 0x80
#define ISIS_IPV6_REACH_EXTERNAL 0x40
#define ISIS_IPV6_REACH_SUBTLV 0x20

#ifndef ISIS_MT_MASK
#define ISIS_MT_MASK           0x0fff
#define ISIS_MT_OL_MASK        0x8000
#define ISIS_MT_AT_MASK        0x4000
#endif


void isis_tlvs_add_auth(struct isis_tlvs *tlvs, struct isis_passwd *passwd);
void isis_tlvs_add_area_addresses(struct isis_tlvs *tlvs,
				  struct list *addresses);
void isis_tlvs_add_lan_neighbors(struct isis_tlvs *tlvs,
				 struct list *neighbors);
void isis_tlvs_set_protocols_supported(struct isis_tlvs *tlvs,
				       struct nlpids *nlpids);
void isis_tlvs_add_mt_router_info(struct isis_tlvs *tlvs, uint16_t mtid,
				  bool overload, bool attached);
void isis_tlvs_add_ipv4_address(struct isis_tlvs *tlvs, struct in_addr *addr);
void isis_tlvs_add_ipv4_addresses(struct isis_tlvs *tlvs,
				  struct list *addresses);
void isis_tlvs_add_ipv6_addresses(struct isis_tlvs *tlvs,
				  struct list *addresses);
bool isis_tlvs_auth_is_valid(struct isis_tlvs *tlvs, struct isis_passwd *passwd,
			     struct stream *stream, bool is_lsp);
bool isis_tlvs_area_addresses_match(struct isis_tlvs *tlvs,
				    struct list *addresses);
struct isis_adjacency;
void isis_tlvs_to_adj(struct isis_tlvs *tlvs, struct isis_adjacency *adj,
		      bool *changed);
bool isis_tlvs_own_snpa_found(struct isis_tlvs *tlvs, uint8_t *snpa);
void isis_tlvs_add_lsp_entry(struct isis_tlvs *tlvs, struct isis_lsp *lsp);
void isis_tlvs_add_csnp_entries(struct isis_tlvs *tlvs, uint8_t *start_id,
				uint8_t *stop_id, uint16_t num_lsps,
				dict_t *lspdb, struct isis_lsp **last_lsp);
void isis_tlvs_set_dynamic_hostname(struct isis_tlvs *tlvs,
				    const char *hostname);
void isis_tlvs_set_te_router_id(struct isis_tlvs *tlvs,
				const struct in_addr *id);
void isis_tlvs_add_oldstyle_ip_reach(struct isis_tlvs *tlvs,
				     struct prefix_ipv4 *dest, uint8_t metric);
void isis_tlvs_add_extended_ip_reach(struct isis_tlvs *tlvs,
				     struct prefix_ipv4 *dest, uint32_t metric);
void isis_tlvs_add_ipv6_reach(struct isis_tlvs *tlvs, uint16_t mtid,
			      struct prefix_ipv6 *dest, uint32_t metric);
void isis_tlvs_add_ipv6_dstsrc_reach(struct isis_tlvs *tlvs, uint16_t mtid,
				     struct prefix_ipv6 *dest,
				     struct prefix_ipv6 *src,
				     uint32_t metric);
void isis_tlvs_add_oldstyle_reach(struct isis_tlvs *tlvs, uint8_t *id,
				  uint8_t metric);
void isis_tlvs_add_extended_reach(struct isis_tlvs *tlvs, uint16_t mtid,
				  uint8_t *id, uint32_t metric,
				  uint8_t *subtlvs, uint8_t subtlv_len);

const char *isis_threeway_state_name(enum isis_threeway_state state);

void isis_tlvs_add_threeway_adj(struct isis_tlvs *tlvs,
				enum isis_threeway_state state,
				uint32_t local_circuit_id,
				const uint8_t *neighbor_id,
				uint32_t neighbor_circuit_id);

void isis_tlvs_add_spine_leaf(struct isis_tlvs *tlvs, uint8_t tier,
			      bool has_tier, bool is_leaf, bool is_spine,
			      bool is_backup);

struct isis_mt_router_info *
isis_tlvs_lookup_mt_router_info(struct isis_tlvs *tlvs, uint16_t mtid);
#endif
Commit	Line	Data
7ef5fefc CF	1	/*
	2	* IS-IS TLV Serializer/Deserializer
	3	*
	4	* Copyright (C) 2015,2017 Christian Franke
	5	*
	6	* This file is part of FRR.
	7	*
	8	* FRR is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2, or (at your option) any
	11	* later version.
	12	*
	13	* FRR is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with FRR; see the file COPYING. If not, write to the Free
	20	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	21	* 02111-1307, USA.
	22	*/
841791b6 CF	23	#ifndef ISIS_TLVS_H
841791b6 CF	24	#define ISIS_TLVS_H
7ef5fefc CF	25
	26	#include "openbsd-tree.h"
	27	#include "prefix.h"
	28	#include "isisd/dict.h"
	29
	30	struct isis_subtlvs;
	31
	32	struct isis_area_address;
	33	struct isis_area_address {
	34	struct isis_area_address *next;
	35
	36	uint8_t addr[20];
	37	uint8_t len;
	38	};
	39
	40	struct isis_oldstyle_reach;
	41	struct isis_oldstyle_reach {
	42	struct isis_oldstyle_reach *next;
	43
	44	uint8_t id[7];
	45	uint8_t metric;
	46	};
	47
	48	struct isis_oldstyle_ip_reach;
	49	struct isis_oldstyle_ip_reach {
	50	struct isis_oldstyle_ip_reach *next;
	51
	52	uint8_t metric;
	53	struct prefix_ipv4 prefix;
	54	};
	55
	56	struct isis_lsp_entry;
	57	struct isis_lsp_entry {
	58	struct isis_lsp_entry *next;
	59
	60	uint16_t rem_lifetime;
	61	uint8_t id[8];
	62	uint16_t checksum;
	63	uint32_t seqno;
	64
	65	struct isis_lsp *lsp;
	66	};
	67
	68	struct isis_extended_reach;
	69	struct isis_extended_reach {
	70	struct isis_extended_reach *next;
	71
	72	uint8_t id[7];
	73	uint32_t metric;
	74
	75	uint8_t *subtlvs;
	76	uint8_t subtlv_len;
	77	};
	78
	79	struct isis_extended_ip_reach;
	80	struct isis_extended_ip_reach {
	81	struct isis_extended_ip_reach *next;
	82
	83	uint32_t metric;
	84	bool down;
	85	struct prefix_ipv4 prefix;
	86	};
	87
	88	struct isis_ipv6_reach;
89	struct isis_ipv6_reach {
90	struct isis_ipv6_reach *next;
91
92	uint32_t metric;
93	bool down;
94	bool external;
95
96	struct prefix_ipv6 prefix;
97
98	struct isis_subtlvs *subtlvs;
99	};
100
101	struct isis_protocols_supported {
102	uint8_t count;
103	uint8_t *protocols;
104	};
105
41a145f1 CF	106	#define ISIS_TIER_UNDEFINED 15
	107
	108	struct isis_spine_leaf {
	109	uint8_t tier;
	110
	111	bool has_tier;
	112	bool is_leaf;
	113	bool is_spine;
	114	bool is_backup;
	115	};
	116
9fe21208 CF	117	enum isis_threeway_state {
	118	ISIS_THREEWAY_DOWN = 2,
	119	ISIS_THREEWAY_INITIALIZING = 1,
	120	ISIS_THREEWAY_UP = 0
	121	};
	122
	123	struct isis_threeway_adj {
	124	enum isis_threeway_state state;
	125	uint32_t local_circuit_id;
	126	bool neighbor_set;
	127	uint8_t neighbor_id[6];
	128	uint32_t neighbor_circuit_id;
	129	};
	130
7ef5fefc CF	131	struct isis_item;
	132	struct isis_item {
	133	struct isis_item *next;
	134	};
	135
	136	struct isis_lan_neighbor;
	137	struct isis_lan_neighbor {
	138	struct isis_lan_neighbor *next;
	139
	140	uint8_t mac[6];
	141	};
	142
	143	struct isis_ipv4_address;
	144	struct isis_ipv4_address {
	145	struct isis_ipv4_address *next;
	146
	147	struct in_addr addr;
	148	};
	149
	150	struct isis_ipv6_address;
	151	struct isis_ipv6_address {
	152	struct isis_ipv6_address *next;
	153
	154	struct in6_addr addr;
	155	};
	156
	157	struct isis_mt_router_info;
	158	struct isis_mt_router_info {
	159	struct isis_mt_router_info *next;
	160
	161	bool overload;
	162	bool attached;
	163	uint16_t mtid;
	164	};
	165
	166	struct isis_auth;
	167	struct isis_auth {
	168	struct isis_auth *next;
	169
	170	uint8_t type;
	171	uint8_t length;
	172	uint8_t value[256];
	173
	174	uint8_t plength;
	175	uint8_t passwd[256];
	176
	177	size_t offset; /* Only valid after packing */
	178	};
	179
	180	struct isis_item_list;
	181	struct isis_item_list {
	182	struct isis_item *head;
	183	struct isis_item **tail;
	184
	185	RB_ENTRY(isis_item_list) mt_tree;
	186	uint16_t mtid;
	187	unsigned int count;
	188	};
	189
	190	RB_HEAD(isis_mt_item_list, isis_item_list);
	191
	192	struct isis_item_list isis_get_mt_items(struct isis_mt_item_list m,
	193	uint16_t mtid);
	194	struct isis_item_list isis_lookup_mt_items(struct isis_mt_item_list m,
195	uint16_t mtid);
196
197	struct isis_tlvs {
198	struct isis_item_list isis_auth;
199	struct isis_item_list area_addresses;
200	struct isis_item_list oldstyle_reach;
201	struct isis_item_list lan_neighbor;
202	struct isis_item_list lsp_entries;
203	struct isis_item_list extended_reach;
204	struct isis_mt_item_list mt_reach;
205	struct isis_item_list oldstyle_ip_reach;
206	struct isis_protocols_supported protocols_supported;
207	struct isis_item_list oldstyle_ip_reach_ext;
208	struct isis_item_list ipv4_address;
209	struct isis_item_list ipv6_address;
210	struct isis_item_list mt_router_info;
211	bool mt_router_info_empty;
212	struct in_addr *te_router_id;
213	struct isis_item_list extended_ip_reach;
214	struct isis_mt_item_list mt_ip_reach;
215	char *hostname;
216	struct isis_item_list ipv6_reach;
217	struct isis_mt_item_list mt_ipv6_reach;
9fe21208	218	struct isis_threeway_adj *threeway_adj;
41a145f1	219	struct isis_spine_leaf *spine_leaf;
7ef5fefc CF	220	};
	221
	222	struct isis_subtlvs {
	223	/* draft-baker-ipv6-isis-dst-src-routing-06 */
	224	struct prefix_ipv6 *source_prefix;
	225	};
	226
	227	enum isis_tlv_context {
	228	ISIS_CONTEXT_LSP,
	229	ISIS_CONTEXT_SUBTLV_NE_REACH,
	230	ISIS_CONTEXT_SUBTLV_IP_REACH,
	231	ISIS_CONTEXT_SUBTLV_IPV6_REACH,
	232	ISIS_CONTEXT_MAX
	233	};
	234
	235	enum isis_tlv_type {
	236	ISIS_TLV_AREA_ADDRESSES = 1,
	237	ISIS_TLV_OLDSTYLE_REACH = 2,
	238	ISIS_TLV_LAN_NEIGHBORS = 6,
	239	ISIS_TLV_PADDING = 8,
	240	ISIS_TLV_LSP_ENTRY = 9,
	241	ISIS_TLV_AUTH = 10,
	242	ISIS_TLV_EXTENDED_REACH = 22,
	243
	244	ISIS_TLV_OLDSTYLE_IP_REACH = 128,
	245	ISIS_TLV_PROTOCOLS_SUPPORTED = 129,
	246	ISIS_TLV_OLDSTYLE_IP_REACH_EXT = 130,
	247	ISIS_TLV_IPV4_ADDRESS = 132,
	248	ISIS_TLV_TE_ROUTER_ID = 134,
	249	ISIS_TLV_EXTENDED_IP_REACH = 135,
	250	ISIS_TLV_DYNAMIC_HOSTNAME = 137,
41a145f1	251	ISIS_TLV_SPINE_LEAF_EXT = 150,
7ef5fefc CF	252	ISIS_TLV_MT_REACH = 222,
	253	ISIS_TLV_MT_ROUTER_INFO = 229,
	254	ISIS_TLV_IPV6_ADDRESS = 232,
	255	ISIS_TLV_MT_IP_REACH = 235,
	256	ISIS_TLV_IPV6_REACH = 236,
	257	ISIS_TLV_MT_IPV6_REACH = 237,
9fe21208	258	ISIS_TLV_THREE_WAY_ADJ = 240,
7ef5fefc CF	259	ISIS_TLV_MAX = 256,
	260
	261	ISIS_SUBTLV_IPV6_SOURCE_PREFIX = 22
	262	};
	263
	264	#define IS_COMPAT_MT_TLV(tlv_type) \
	265	((tlv_type == ISIS_TLV_MT_REACH) \|\| (tlv_type == ISIS_TLV_MT_IP_REACH) \
	266	\|\| (tlv_type == ISIS_TLV_MT_IPV6_REACH))
	267
	268	struct stream;
	269	int isis_pack_tlvs(struct isis_tlvs tlvs, struct stream stream,
	270	size_t len_pointer, bool pad, bool is_lsp);
	271	void isis_free_tlvs(struct isis_tlvs *tlvs);
	272	struct isis_tlvs *isis_alloc_tlvs(void);
	273	int isis_unpack_tlvs(size_t avail_len, struct stream *stream,
	274	struct isis_tlvs dest, const char error_log);
	275	const char isis_format_tlvs(struct isis_tlvs tlvs);
	276	struct isis_tlvs isis_copy_tlvs(struct isis_tlvs tlvs);
	277	struct list isis_fragment_tlvs(struct isis_tlvs tlvs, size_t size);
	278
	279	#define ISIS_EXTENDED_IP_REACH_DOWN 0x80
	280	#define ISIS_EXTENDED_IP_REACH_SUBTLV 0x40
	281
	282	#define ISIS_IPV6_REACH_DOWN 0x80
	283	#define ISIS_IPV6_REACH_EXTERNAL 0x40
	284	#define ISIS_IPV6_REACH_SUBTLV 0x20
	285
	286	#ifndef ISIS_MT_MASK
	287	#define ISIS_MT_MASK 0x0fff
	288	#define ISIS_MT_OL_MASK 0x8000
	289	#define ISIS_MT_AT_MASK 0x4000
	290	#endif
	291
	292
	293	void isis_tlvs_add_auth(struct isis_tlvs tlvs, struct isis_passwd passwd);
	294	void isis_tlvs_add_area_addresses(struct isis_tlvs *tlvs,
	295	struct list *addresses);
	296	void isis_tlvs_add_lan_neighbors(struct isis_tlvs *tlvs,
	297	struct list *neighbors);
	298	void isis_tlvs_set_protocols_supported(struct isis_tlvs *tlvs,
	299	struct nlpids *nlpids);
	300	void isis_tlvs_add_mt_router_info(struct isis_tlvs *tlvs, uint16_t mtid,
	301	bool overload, bool attached);
	302	void isis_tlvs_add_ipv4_address(struct isis_tlvs tlvs, struct in_addr addr);
	303	void isis_tlvs_add_ipv4_addresses(struct isis_tlvs *tlvs,
	304	struct list *addresses);
	305	void isis_tlvs_add_ipv6_addresses(struct isis_tlvs *tlvs,
	306	struct list *addresses);
	307	bool isis_tlvs_auth_is_valid(struct isis_tlvs tlvs, struct isis_passwd passwd,
	308	struct stream *stream, bool is_lsp);
	309	bool isis_tlvs_area_addresses_match(struct isis_tlvs *tlvs,
	310	struct list *addresses);
	311	struct isis_adjacency;
	312	void isis_tlvs_to_adj(struct isis_tlvs tlvs, struct isis_adjacency adj,
	313	bool *changed);
	314	bool isis_tlvs_own_snpa_found(struct isis_tlvs tlvs, uint8_t snpa);
	315	void isis_tlvs_add_lsp_entry(struct isis_tlvs tlvs, struct isis_lsp lsp);
	316	void isis_tlvs_add_csnp_entries(struct isis_tlvs tlvs, uint8_t start_id,
	317	uint8_t *stop_id, uint16_t num_lsps,
	318	dict_t lspdb, struct isis_lsp *last_lsp);
	319	void isis_tlvs_set_dynamic_hostname(struct isis_tlvs *tlvs,
	320	const char *hostname);
	321	void isis_tlvs_set_te_router_id(struct isis_tlvs *tlvs,
	322	const struct in_addr *id);
323	void isis_tlvs_add_oldstyle_ip_reach(struct isis_tlvs *tlvs,
324	struct prefix_ipv4 *dest, uint8_t metric);
325	void isis_tlvs_add_extended_ip_reach(struct isis_tlvs *tlvs,
326	struct prefix_ipv4 *dest, uint32_t metric);
327	void isis_tlvs_add_ipv6_reach(struct isis_tlvs *tlvs, uint16_t mtid,
328	struct prefix_ipv6 *dest, uint32_t metric);
d43d2df5 CF	329	void isis_tlvs_add_ipv6_dstsrc_reach(struct isis_tlvs *tlvs, uint16_t mtid,
	330	struct prefix_ipv6 *dest,
	331	struct prefix_ipv6 *src,
	332	uint32_t metric);
7ef5fefc CF	333	void isis_tlvs_add_oldstyle_reach(struct isis_tlvs tlvs, uint8_t id,
	334	uint8_t metric);
	335	void isis_tlvs_add_extended_reach(struct isis_tlvs *tlvs, uint16_t mtid,
	336	uint8_t *id, uint32_t metric,
	337	uint8_t *subtlvs, uint8_t subtlv_len);
	338
9fe21208 CF	339	const char *isis_threeway_state_name(enum isis_threeway_state state);
	340
	341	void isis_tlvs_add_threeway_adj(struct isis_tlvs *tlvs,
	342	enum isis_threeway_state state,
	343	uint32_t local_circuit_id,
	344	const uint8_t *neighbor_id,
	345	uint32_t neighbor_circuit_id);
	346
41a145f1 CF	347	void isis_tlvs_add_spine_leaf(struct isis_tlvs *tlvs, uint8_t tier,
	348	bool has_tier, bool is_leaf, bool is_spine,
	349	bool is_backup);
	350
7ef5fefc CF	351	struct isis_mt_router_info *
	352	isis_tlvs_lookup_mt_router_info(struct isis_tlvs *tlvs, uint16_t mtid);
	353	#endif