[mirror_frr.git] / isisd / isis_tlv.h

/*
 * IS-IS Rout(e)ing protocol - isis_tlv.h
 *                             IS-IS TLV related routines
 *
 * Copyright (C) 2001,2002   Sampo Saaristo
 *                           Tampere University of Technology      
 *                           Institute of Communications Engineering
 *
 * This program is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU General Public Licenseas 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., 
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef _ZEBRA_ISIS_TLV_H
#define _ZEBRA_ISIS_TLV_H

/*
 * The list of TLVs we (should) support.
 * ____________________________________________________________________________
 * Name                   Value  IIH LSP SNP Status
 *                               LAN
 * ____________________________________________________________________________
 *
 * Area Addresses             1   y   y   n  ISO10589
 * IIS Neighbors              2   n   y   n  ISO10589
 * ES Neighbors               3   n   y   n  ISO10589
 * IIS Neighbors              6   y   n   n  ISO10589
 * Padding                    8   y   n   n  ISO10589
 * LSP Entries                9   n   n   y  ISO10589
 * Authentication            10   y   y   y  ISO10589, RFC3567
 * Checksum                  12   y   n   y  RFC3358
 * Extended IS Reachability  22   n   y   n  RFC5305
 * IS Alias                  24   n   y   n  RFC3786
 * IP Int. Reachability     128   n   y   n  RFC1195
 * Protocols Supported      129   y   y   n  RFC1195
 * IP Ext. Reachability     130   n   y   n  RFC1195
 * IDRPI                    131   n   y   y  RFC1195
 * IP Interface Address     132   y   y   n  RFC1195
 * TE Router ID             134   n   y   n  RFC5305
 * Extended IP Reachability 135   n   y   n  RFC5305
 * Dynamic Hostname         137   n   y   n  RFC2763
 * Shared Risk Link Group   138   n   y   y  RFC5307
 * Inter-AS Reachability    141   n   y   n  RFC5316
 * Restart TLV              211   y   n   n  RFC3847
 * MT IS Reachability       222   n   y   n  RFC5120
 * MT Supported             229   y   y   n  RFC5120
 * IPv6 Interface Address   232   y   y   n  RFC5308
 * MT IP Reachability       235   n   y   n  RFC5120
 * IPv6 IP Reachability     236   n   y   n  RFC5308
 * MT IPv6 IP Reachability  237   n   y   n  RFC5120
 * P2P Adjacency State      240   y   n   n  RFC3373
 * IIH Sequence Number      241   y   n   n  draft-shen-isis-iih-sequence
 * Router Capability        242   n   y   n  RFC4971
 *
 *
 * IS Reachability sub-TLVs we support (See isis_te.[c,h])
 * ____________________________________________________________________________
 * Name                           Value   Status
 * ____________________________________________________________________________
 * Administartive group (color)       3   RFC5305
 * Link Local/Remote Identifiers      4   RFC5307
 * IPv4 interface address             6   RFC5305
 * IPv4 neighbor address              8   RFC5305
 * Maximum link bandwidth             9   RFC5305
 * Reservable link bandwidth         10   RFC5305
 * Unreserved bandwidth              11   RFC5305
 * TE Default metric                 18   RFC5305
 * Link Protection Type              20   RFC5307
 * Interface Switching Capability    21   RFC5307
 * Remote AS number                  24   RFC5316
 * IPv4 Remote ASBR identifier       25   RFC5316
 *
 *
 * IP Reachability sub-TLVs we (should) support.
 * ____________________________________________________________________________
 * Name                           Value   Status
 * ____________________________________________________________________________
 * 32bit administrative tag           1   RFC5130
 * 64bit administrative tag           2   RFC5130
 * Management prefix color          117   RFC5120
 */

#define AREA_ADDRESSES            1
#define IS_NEIGHBOURS             2
#define ES_NEIGHBOURS             3
#define LAN_NEIGHBOURS            6
#define PADDING                   8
#define LSP_ENTRIES               9
#define AUTH_INFO                 10
#define CHECKSUM                  12
#define TE_IS_NEIGHBOURS          22
#define IS_ALIAS                  24
#define IPV4_INT_REACHABILITY     128
#define PROTOCOLS_SUPPORTED       129
#define IPV4_EXT_REACHABILITY     130
#define IDRP_INFO                 131
#define IPV4_ADDR                 132
#define TE_ROUTER_ID              134
#define TE_IPV4_REACHABILITY      135
#define DYNAMIC_HOSTNAME          137
#define GRACEFUL_RESTART          211
#define IPV6_ADDR                 232
#define IPV6_REACHABILITY         236
#define WAY3_HELLO                240
#define ROUTER_INFORMATION        242

#define AUTH_INFO_HDRLEN          3

#define MAX_TLV_LEN 255

#define IS_NEIGHBOURS_LEN (ISIS_SYS_ID_LEN + 5)
#define LAN_NEIGHBOURS_LEN 6
#define LSP_ENTRIES_LEN (10 + ISIS_SYS_ID_LEN)	/* FIXME: should be entry */
#define IPV4_REACH_LEN 12
#define IPV6_REACH_LEN 22
#define TE_IPV4_REACH_LEN 9

#define MAX_SUBTLV_SIZE         256

/* struct for neighbor */
struct is_neigh
{
  struct metric metrics;
  u_char neigh_id[ISIS_SYS_ID_LEN + 1];
};

/* struct for te metric */
struct te_is_neigh
{
  u_char neigh_id[ISIS_SYS_ID_LEN + 1];
  u_char te_metric[3];
  u_char sub_tlvs_length;
  /* Theorical Maximum SubTLVs is 256 because the sub_tlvs_length is 8 bits */
  /* Practically, 118 bytes are necessary to store all supported TE parameters */
  /* FIXME: A pointer will use less memory, but need to be free */
  /* which is hard to fix, especially within free_tlvs() function */
  /* and malloc() / free() as a CPU cost compared to the memory usage */
  u_char sub_tlvs[MAX_SUBTLV_SIZE];      /* SUB TLVs storage */
};

/* Decode and encode three-octet metric into host byte order integer */
#define GET_TE_METRIC(t) \
  (((unsigned)(t)->te_metric[0]<<16) | ((t)->te_metric[1]<<8) | \
   (t)->te_metric[2])
#define SET_TE_METRIC(t, m) \
  (((t)->te_metric[0] = (m) >> 16), \
   ((t)->te_metric[1] = (m) >> 8), \
   ((t)->te_metric[2] = (m)))

/* struct for es neighbors */
struct es_neigh
{
  struct metric metrics;
  /* approximate position of first, we use the
   * length ((uchar*)metric-1) to know all     */
  u_char first_es_neigh[ISIS_SYS_ID_LEN];

};

struct partition_desig_level2_is
{
  struct list *isis_system_ids;
};

/* struct for lan neighbors */
struct lan_neigh
{
  u_char LAN_addr[6];
};

#ifdef __SUNPRO_C
#pragma pack(1)
#endif

/* struct for LSP entry */
struct lsp_entry
{
  u_int16_t rem_lifetime;
  u_char lsp_id[ISIS_SYS_ID_LEN + 2];
  u_int32_t seq_num;
  u_int16_t checksum;
} __attribute__ ((packed));

#ifdef __SUNPRO_C
#pragma pack()
#endif

/* struct for checksum */
struct checksum
{
  u_int16_t checksum;
};

/* ipv4 reachability */
struct ipv4_reachability
{
  struct metric metrics;
  struct in_addr prefix;
  struct in_addr mask;
};

/* te router id */
struct te_router_id
{
  struct in_addr id;
};

/* te ipv4 reachability */
struct te_ipv4_reachability
{
  u_int32_t te_metric;
  u_char control;
  u_char prefix_start;		/* since this is variable length by nature it only */
};				/* points to an approximate location */

#define TE_IPV4_HAS_SUBTLV (0x40)

struct idrp_info
{
  u_char len;
  u_char *value;
};

#ifdef HAVE_IPV6
struct ipv6_reachability
{
  u_int32_t metric;
  u_char control_info;
  u_char prefix_len;
  u_char prefix[16];
};

/* bits in control_info */
#define CTRL_INFO_DIRECTION    0x80
#define DIRECTION_UP           0x00
#define DIRECTION_DOWN         0x80

#define CTRL_INFO_DISTRIBUTION 0x40
#define DISTRIBUTION_INTERNAL  0x00
#define DISTRIBUTION_EXTERNAL  0x40

#define CTRL_INFO_SUBTLVS      0x20
#endif /* HAVE_IPV6 */

/*
 * Pointer to each tlv type, filled by parse_tlvs()
 */
struct tlvs
{
  struct checksum *checksum;
  struct hostname *hostname;
  struct nlpids *nlpids;
  struct te_router_id *router_id;
  struct list *area_addrs;
  struct list *is_neighs;
  struct list *te_is_neighs;
  struct list *es_neighs;
  struct list *lsp_entries;
  struct list *prefix_neighs;
  struct list *lan_neighs;
  struct list *ipv4_addrs;
  struct list *ipv4_int_reachs;
  struct list *ipv4_ext_reachs;
  struct list *te_ipv4_reachs;
#ifdef HAVE_IPV6
  struct list *ipv6_addrs;
  struct list *ipv6_reachs;
#endif
  struct isis_passwd auth_info;
};

/*
 * Own definitions - used to bitmask found and expected
 */

#define TLVFLAG_AREA_ADDRS                (1<<0)
#define TLVFLAG_IS_NEIGHS                 (1<<1)
#define TLVFLAG_ES_NEIGHS                 (1<<2)
#define TLVFLAG_PARTITION_DESIG_LEVEL2_IS (1<<3)
#define TLVFLAG_PREFIX_NEIGHS             (1<<4)
#define TLVFLAG_LAN_NEIGHS                (1<<5)
#define TLVFLAG_LSP_ENTRIES               (1<<6)
#define TLVFLAG_PADDING                   (1<<7)
#define TLVFLAG_AUTH_INFO                 (1<<8)
#define TLVFLAG_IPV4_INT_REACHABILITY     (1<<9)
#define TLVFLAG_NLPID                     (1<<10)
#define TLVFLAG_IPV4_EXT_REACHABILITY     (1<<11)
#define TLVFLAG_IPV4_ADDR                 (1<<12)
#define TLVFLAG_DYN_HOSTNAME              (1<<13)
#define TLVFLAG_IPV6_ADDR                 (1<<14)
#define TLVFLAG_IPV6_REACHABILITY         (1<<15)
#define TLVFLAG_TE_IS_NEIGHS              (1<<16)
#define TLVFLAG_TE_IPV4_REACHABILITY      (1<<17)
#define TLVFLAG_3WAY_HELLO                (1<<18)
#define TLVFLAG_TE_ROUTER_ID              (1<<19)
#define TLVFLAG_CHECKSUM                  (1<<20)
#define TLVFLAG_GRACEFUL_RESTART          (1<<21)

void init_tlvs (struct tlvs *tlvs, uint32_t expected);
void free_tlvs (struct tlvs *tlvs);
int parse_tlvs (char *areatag, u_char * stream, int size,
		u_int32_t * expected, u_int32_t * found, struct tlvs *tlvs,
                u_int32_t * auth_tlv_offset);
int add_tlv (u_char, u_char, u_char *, struct stream *);
void free_tlv (void *val);

int tlv_add_area_addrs (struct list *area_addrs, struct stream *stream);
int tlv_add_is_neighs (struct list *is_neighs, struct stream *stream);
int tlv_add_te_is_neighs (struct list *te_is_neighs, struct stream *stream);
int tlv_add_lan_neighs (struct list *lan_neighs, struct stream *stream);
int tlv_add_nlpid (struct nlpids *nlpids, struct stream *stream);
int tlv_add_checksum (struct checksum *checksum, struct stream *stream);
int tlv_add_authinfo (u_char auth_type, u_char authlen, u_char *auth_value,
		      struct stream *stream);
int tlv_add_ip_addrs (struct list *ip_addrs, struct stream *stream);
int tlv_add_in_addr (struct in_addr *, struct stream *stream, u_char tag);
int tlv_add_dynamic_hostname (struct hostname *hostname,
			      struct stream *stream);
int tlv_add_lsp_entries (struct list *lsps, struct stream *stream);
int tlv_add_ipv4_int_reachs (struct list *ipv4_reachs, struct stream *stream);
int tlv_add_ipv4_ext_reachs (struct list *ipv4_reachs, struct stream *stream);
int tlv_add_te_ipv4_reachs (struct list *te_ipv4_reachs, struct stream *stream);
#ifdef HAVE_IPV6
int tlv_add_ipv6_addrs (struct list *ipv6_addrs, struct stream *stream);
int tlv_add_ipv6_reachs (struct list *ipv6_reachs, struct stream *stream);
#endif /* HAVE_IPV6 */

int tlv_add_padding (struct stream *stream);

#endif /* _ZEBRA_ISIS_TLV_H */
Commit	Line	Data
eb5d44eb	1	/*
	2	* IS-IS Rout(e)ing protocol - isis_tlv.h
	3	* IS-IS TLV related routines
	4	*
	5	* Copyright (C) 2001,2002 Sampo Saaristo
	6	* Tampere University of Technology
	7	* Institute of Communications Engineering
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public Licenseas published by the Free
	11	* Software Foundation; either version 2 of the License, or (at your option)
	12	* any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,but WITHOUT
	15	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	16	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	17	* more details.
	18	*
	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write to the Free Software Foundation, Inc.,
	21	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	22	*/
	23
	24	#ifndef _ZEBRA_ISIS_TLV_H
	25	#define _ZEBRA_ISIS_TLV_H
	26
	27	/*
72b9c956	28	* The list of TLVs we (should) support.
	29	* ____________________________________________________________________________
	30	* Name Value IIH LSP SNP Status
	31	* LAN
	32	* ____________________________________________________________________________
3f045a08	33	*
72b9c956	34	* Area Addresses 1 y y n ISO10589
	35	* IIS Neighbors 2 n y n ISO10589
	36	* ES Neighbors 3 n y n ISO10589
	37	* IIS Neighbors 6 y n n ISO10589
	38	* Padding 8 y n n ISO10589
	39	* LSP Entries 9 n n y ISO10589
	40	* Authentication 10 y y y ISO10589, RFC3567
	41	* Checksum 12 y n y RFC3358
f8c06e2c	42	* Extended IS Reachability 22 n y n RFC5305
72b9c956	43	* IS Alias 24 n y n RFC3786
	44	* IP Int. Reachability 128 n y n RFC1195
	45	* Protocols Supported 129 y y n RFC1195
	46	* IP Ext. Reachability 130 n y n RFC1195
	47	* IDRPI 131 n y y RFC1195
	48	* IP Interface Address 132 y y n RFC1195
3f045a08 JB	49	* TE Router ID 134 n y n RFC5305
3f045a08 JB	50	* Extended IP Reachability 135 n y n RFC5305
72b9c956	51	* Dynamic Hostname 137 n y n RFC2763
3f045a08	52	* Shared Risk Link Group 138 n y y RFC5307
f8c06e2c	53	* Inter-AS Reachability 141 n y n RFC5316
72b9c956	54	* Restart TLV 211 y n n RFC3847
3f045a08 JB	55	* MT IS Reachability 222 n y n RFC5120
	56	* MT Supported 229 y y n RFC5120
	57	* IPv6 Interface Address 232 y y n RFC5308
	58	* MT IP Reachability 235 n y n RFC5120
	59	* IPv6 IP Reachability 236 n y n RFC5308
	60	* MT IPv6 IP Reachability 237 n y n RFC5120
72b9c956	61	* P2P Adjacency State 240 y n n RFC3373
72b9c956	62	* IIH Sequence Number 241 y n n draft-shen-isis-iih-sequence
f8c06e2c	63	* Router Capability 242 n y n RFC4971
72b9c956	64	*
3f045a08	65	*
f8c06e2c	66	* IS Reachability sub-TLVs we support (See isis_te.[c,h])
72b9c956	67	* ____________________________________________________________________________
	68	* Name Value Status
	69	* ____________________________________________________________________________
3f045a08 JB	70	* Administartive group (color) 3 RFC5305
	71	* Link Local/Remote Identifiers 4 RFC5307
	72	* IPv4 interface address 6 RFC5305
	73	* IPv4 neighbor address 8 RFC5305
	74	* Maximum link bandwidth 9 RFC5305
	75	* Reservable link bandwidth 10 RFC5305
	76	* Unreserved bandwidth 11 RFC5305
	77	* TE Default metric 18 RFC5305
	78	* Link Protection Type 20 RFC5307
	79	* Interface Switching Capability 21 RFC5307
f8c06e2c OD	80	* Remote AS number 24 RFC5316
f8c06e2c OD	81	* IPv4 Remote ASBR identifier 25 RFC5316
3f045a08	82	*
72b9c956	83	*
72b9c956	84	* IP Reachability sub-TLVs we (should) support.
	85	* ____________________________________________________________________________
	86	* Name Value Status
	87	* ____________________________________________________________________________
3f045a08 JB	88	* 32bit administrative tag 1 RFC5130
	89	* 64bit administrative tag 2 RFC5130
	90	* Management prefix color 117 RFC5120
eb5d44eb	91	*/
	92
	93	#define AREA_ADDRESSES 1
	94	#define IS_NEIGHBOURS 2
	95	#define ES_NEIGHBOURS 3
eb5d44eb	96	#define LAN_NEIGHBOURS 6
	97	#define PADDING 8
	98	#define LSP_ENTRIES 9
	99	#define AUTH_INFO 10
	100	#define CHECKSUM 12
	101	#define TE_IS_NEIGHBOURS 22
72b9c956	102	#define IS_ALIAS 24
eb5d44eb	103	#define IPV4_INT_REACHABILITY 128
eb5d44eb	104	#define PROTOCOLS_SUPPORTED 129
72b9c956	105	#define IPV4_EXT_REACHABILITY 130
eb5d44eb	106	#define IDRP_INFO 131
	107	#define IPV4_ADDR 132
	108	#define TE_ROUTER_ID 134
	109	#define TE_IPV4_REACHABILITY 135
	110	#define DYNAMIC_HOSTNAME 137
00995cfc	111	#define GRACEFUL_RESTART 211
eb5d44eb	112	#define IPV6_ADDR 232
72b9c956	113	#define IPV6_REACHABILITY 236
eb5d44eb	114	#define WAY3_HELLO 240
f8c06e2c	115	#define ROUTER_INFORMATION 242
eb5d44eb	116
3f045a08 JB	117	#define AUTH_INFO_HDRLEN 3
3f045a08 JB	118
e316f9ab CF	119	#define MAX_TLV_LEN 255
e316f9ab CF	120
eb5d44eb	121	#define IS_NEIGHBOURS_LEN (ISIS_SYS_ID_LEN + 5)
eb5d44eb	122	#define LAN_NEIGHBOURS_LEN 6
f390d2c7	123	#define LSP_ENTRIES_LEN (10 + ISIS_SYS_ID_LEN) /* FIXME: should be entry */
eb5d44eb	124	#define IPV4_REACH_LEN 12
eb5d44eb	125	#define IPV6_REACH_LEN 22
3f045a08	126	#define TE_IPV4_REACH_LEN 9
eb5d44eb	127
f8c06e2c OD	128	#define MAX_SUBTLV_SIZE 256
f8c06e2c OD	129
eb5d44eb	130	/* struct for neighbor */
f390d2c7	131	struct is_neigh
	132	{
	133	struct metric metrics;
	134	u_char neigh_id[ISIS_SYS_ID_LEN + 1];
eb5d44eb	135	};
eb5d44eb	136
f8c06e2c	137	/* struct for te metric */
f390d2c7	138	struct te_is_neigh
	139	{
	140	u_char neigh_id[ISIS_SYS_ID_LEN + 1];
	141	u_char te_metric[3];
	142	u_char sub_tlvs_length;
f8c06e2c OD	143	/* Theorical Maximum SubTLVs is 256 because the sub_tlvs_length is 8 bits */
	144	/* Practically, 118 bytes are necessary to store all supported TE parameters */
	145	/* FIXME: A pointer will use less memory, but need to be free */
	146	/* which is hard to fix, especially within free_tlvs() function */
	147	/* and malloc() / free() as a CPU cost compared to the memory usage */
	148	u_char sub_tlvs[MAX_SUBTLV_SIZE]; /* SUB TLVs storage */
eb5d44eb	149	};
eb5d44eb	150
3f045a08 JB	151	/* Decode and encode three-octet metric into host byte order integer */
	152	#define GET_TE_METRIC(t) \
	153	(((unsigned)(t)->te_metric[0]<<16) \| ((t)->te_metric[1]<<8) \| \
	154	(t)->te_metric[2])
	155	#define SET_TE_METRIC(t, m) \
	156	(((t)->te_metric[0] = (m) >> 16), \
	157	((t)->te_metric[1] = (m) >> 8), \
	158	((t)->te_metric[2] = (m)))
	159
eb5d44eb	160	/* struct for es neighbors */
f390d2c7	161	struct es_neigh
	162	{
	163	struct metric metrics;
eb5d44eb	164	/* approximate position of first, we use the
eb5d44eb	165	* length ((uchar)metric-1) to know all /
f390d2c7	166	u_char first_es_neigh[ISIS_SYS_ID_LEN];
f390d2c7	167
eb5d44eb	168	};
eb5d44eb	169
f390d2c7	170	struct partition_desig_level2_is
	171	{
	172	struct list *isis_system_ids;
eb5d44eb	173	};
	174
	175	/* struct for lan neighbors */
f390d2c7	176	struct lan_neigh
	177	{
	178	u_char LAN_addr[6];
eb5d44eb	179	};
eb5d44eb	180
238497fc PJ	181	#ifdef __SUNPRO_C
	182	#pragma pack(1)
	183	#endif
	184
eb5d44eb	185	/* struct for LSP entry */
f390d2c7	186	struct lsp_entry
	187	{
	188	u_int16_t rem_lifetime;
	189	u_char lsp_id[ISIS_SYS_ID_LEN + 2];
	190	u_int32_t seq_num;
	191	u_int16_t checksum;
	192	} __attribute__ ((packed));
eb5d44eb	193
238497fc PJ	194	#ifdef __SUNPRO_C
	195	#pragma pack()
	196	#endif
	197
eb5d44eb	198	/* struct for checksum */
f390d2c7	199	struct checksum
f390d2c7	200	{
eb5d44eb	201	u_int16_t checksum;
	202	};
	203
	204	/* ipv4 reachability */
f390d2c7	205	struct ipv4_reachability
f390d2c7	206	{
eb5d44eb	207	struct metric metrics;
eb5d44eb	208	struct in_addr prefix;
f390d2c7	209	struct in_addr mask;
eb5d44eb	210	};
	211
	212	/* te router id */
f390d2c7	213	struct te_router_id
	214	{
	215	struct in_addr id;
eb5d44eb	216	};
	217
	218	/* te ipv4 reachability */
f390d2c7	219	struct te_ipv4_reachability
	220	{
	221	u_int32_t te_metric;
	222	u_char control;
	223	u_char prefix_start; /* since this is variable length by nature it only */
	224	}; /* points to an approximate location */
eb5d44eb	225
0de64cbb	226	#define TE_IPV4_HAS_SUBTLV (0x40)
eb5d44eb	227
f390d2c7	228	struct idrp_info
f390d2c7	229	{
eb5d44eb	230	u_char len;
	231	u_char *value;
	232	};
	233
	234	#ifdef HAVE_IPV6
f390d2c7	235	struct ipv6_reachability
	236	{
	237	u_int32_t metric;
	238	u_char control_info;
	239	u_char prefix_len;
	240	u_char prefix[16];
eb5d44eb	241	};
eb5d44eb	242
	243	/* bits in control_info */
	244	#define CTRL_INFO_DIRECTION 0x80
f3ccedaa CF	245	#define DIRECTION_UP 0x00
	246	#define DIRECTION_DOWN 0x80
	247
eb5d44eb	248	#define CTRL_INFO_DISTRIBUTION 0x40
f3ccedaa CF	249	#define DISTRIBUTION_INTERNAL 0x00
	250	#define DISTRIBUTION_EXTERNAL 0x40
	251
eb5d44eb	252	#define CTRL_INFO_SUBTLVS 0x20
3f045a08	253	#endif /* HAVE_IPV6 */
eb5d44eb	254
	255	/*
	256	* Pointer to each tlv type, filled by parse_tlvs()
	257	*/
f390d2c7	258	struct tlvs
f390d2c7	259	{
3f045a08 JB	260	struct checksum *checksum;
	261	struct hostname *hostname;
	262	struct nlpids *nlpids;
	263	struct te_router_id *router_id;
f390d2c7	264	struct list *area_addrs;
	265	struct list *is_neighs;
	266	struct list *te_is_neighs;
	267	struct list *es_neighs;
	268	struct list *lsp_entries;
	269	struct list *prefix_neighs;
	270	struct list *lan_neighs;
f390d2c7	271	struct list *ipv4_addrs;
	272	struct list *ipv4_int_reachs;
	273	struct list *ipv4_ext_reachs;
	274	struct list *te_ipv4_reachs;
eb5d44eb	275	#ifdef HAVE_IPV6
f390d2c7	276	struct list *ipv6_addrs;
f390d2c7	277	struct list *ipv6_reachs;
eb5d44eb	278	#endif
f390d2c7	279	struct isis_passwd auth_info;
eb5d44eb	280	};
	281
	282	/*
	283	* Own definitions - used to bitmask found and expected
	284	*/
	285
	286	#define TLVFLAG_AREA_ADDRS (1<<0)
	287	#define TLVFLAG_IS_NEIGHS (1<<1)
	288	#define TLVFLAG_ES_NEIGHS (1<<2)
	289	#define TLVFLAG_PARTITION_DESIG_LEVEL2_IS (1<<3)
	290	#define TLVFLAG_PREFIX_NEIGHS (1<<4)
	291	#define TLVFLAG_LAN_NEIGHS (1<<5)
	292	#define TLVFLAG_LSP_ENTRIES (1<<6)
	293	#define TLVFLAG_PADDING (1<<7)
	294	#define TLVFLAG_AUTH_INFO (1<<8)
	295	#define TLVFLAG_IPV4_INT_REACHABILITY (1<<9)
	296	#define TLVFLAG_NLPID (1<<10)
	297	#define TLVFLAG_IPV4_EXT_REACHABILITY (1<<11)
	298	#define TLVFLAG_IPV4_ADDR (1<<12)
	299	#define TLVFLAG_DYN_HOSTNAME (1<<13)
	300	#define TLVFLAG_IPV6_ADDR (1<<14)
	301	#define TLVFLAG_IPV6_REACHABILITY (1<<15)
	302	#define TLVFLAG_TE_IS_NEIGHS (1<<16)
	303	#define TLVFLAG_TE_IPV4_REACHABILITY (1<<17)
	304	#define TLVFLAG_3WAY_HELLO (1<<18)
	305	#define TLVFLAG_TE_ROUTER_ID (1<<19)
	306	#define TLVFLAG_CHECKSUM (1<<20)
00995cfc	307	#define TLVFLAG_GRACEFUL_RESTART (1<<21)
eb5d44eb	308
f390d2c7	309	void init_tlvs (struct tlvs *tlvs, uint32_t expected);
	310	void free_tlvs (struct tlvs *tlvs);
	311	int parse_tlvs (char areatag, u_char stream, int size,
3f045a08 JB	312	u_int32_t * expected, u_int32_t * found, struct tlvs *tlvs,
	313	u_int32_t * auth_tlv_offset);
	314	int add_tlv (u_char, u_char, u_char , struct stream );
f390d2c7	315	void free_tlv (void *val);
eb5d44eb	316
f390d2c7	317	int tlv_add_area_addrs (struct list area_addrs, struct stream stream);
f390d2c7	318	int tlv_add_is_neighs (struct list is_neighs, struct stream stream);
ea3be4c1	319	int tlv_add_te_is_neighs (struct list te_is_neighs, struct stream stream);
f390d2c7	320	int tlv_add_lan_neighs (struct list lan_neighs, struct stream stream);
	321	int tlv_add_nlpid (struct nlpids nlpids, struct stream stream);
	322	int tlv_add_checksum (struct checksum checksum, struct stream stream);
3f045a08	323	int tlv_add_authinfo (u_char auth_type, u_char authlen, u_char *auth_value,
f390d2c7	324	struct stream *stream);
f390d2c7	325	int tlv_add_ip_addrs (struct list ip_addrs, struct stream stream);
81ad8f6a	326	int tlv_add_in_addr (struct in_addr , struct stream stream, u_char tag);
f390d2c7	327	int tlv_add_dynamic_hostname (struct hostname *hostname,
eb5d44eb	328	struct stream *stream);
f390d2c7	329	int tlv_add_lsp_entries (struct list lsps, struct stream stream);
f3ccedaa CF	330	int tlv_add_ipv4_int_reachs (struct list ipv4_reachs, struct stream stream);
f3ccedaa CF	331	int tlv_add_ipv4_ext_reachs (struct list ipv4_reachs, struct stream stream);
ea3be4c1	332	int tlv_add_te_ipv4_reachs (struct list te_ipv4_reachs, struct stream stream);
eb5d44eb	333	#ifdef HAVE_IPV6
f390d2c7	334	int tlv_add_ipv6_addrs (struct list ipv6_addrs, struct stream stream);
f390d2c7	335	int tlv_add_ipv6_reachs (struct list ipv6_reachs, struct stream stream);
eb5d44eb	336	#endif /* HAVE_IPV6 */
eb5d44eb	337
f390d2c7	338	int tlv_add_padding (struct stream *stream);
eb5d44eb	339
eb5d44eb	340	#endif /* _ZEBRA_ISIS_TLV_H */