[mirror_frr.git] / ospfd / ospf_te.h

/*
 * This is an implementation of RFC3630, RFC5392 & RFC6827
 * Copyright (C) 2001 KDD R&D Laboratories, Inc.
 * http://www.kddlabs.co.jp/
 *
 * Copyright (C) 2012 Orange Labs
 * http://www.orange.com
 *
 * 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 this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

/* Add support of RFC7471 */
/* Add support of RFC5392 */
/* Add support of RFC6827 (partial) */

#ifndef _ZEBRA_OSPF_MPLS_TE_H
#define _ZEBRA_OSPF_MPLS_TE_H

/*
 * Opaque LSA's link state ID for Traffic Engineering is
 * structured as follows.
 *
 *        24       16        8        0
 * +--------+--------+--------+--------+
 * |    1   |  MBZ   |........|........|
 * +--------+--------+--------+--------+
 * |<-Type->|<Resv'd>|<-- Instance --->|
 *
 *
 * Type:      IANA has assigned '1' for Traffic Engineering.
 * MBZ:       Reserved, must be set to zero.
 * Instance:  User may select an arbitrary 16-bit value.
 *
 */

#define	MAX_LEGAL_TE_INSTANCE_NUM (0xffff)
#define LEGAL_TE_INSTANCE_RANGE(i)  (0 <= (i) && (i) <= 0xffff)

/*
 *        24       16        8        0
 * +--------+--------+--------+--------+ ---
 * |   LS age        |Options |   10   |  A
 * +--------+--------+--------+--------+  |
 * |    1   |   0    |    Instance     |  |
 * +--------+--------+--------+--------+  |
 * |        Advertising router         |  |  Standard (Opaque) LSA header;
 * +--------+--------+--------+--------+  |  Only type-10 is used.
 * |        LS sequence number         |  |
 * +--------+--------+--------+--------+  |
 * |   LS checksum   |     Length      |  V
 * +--------+--------+--------+--------+ ---
 * |      Type       |     Length      |  A
 * +--------+--------+--------+--------+  |  TLV part for TE; Values might be
 * |              Values ...           |  V  structured as a set of sub-TLVs.
 * +--------+--------+--------+--------+ ---
 */

/* Following define the type of TE link regarding the various RFC */
#define STD_TE  	0x01
#define GMPLS   	0x02
#define INTER_AS	0x04
#define PSEUDO_TE	0x08
#define FLOOD_AREA	0x10
#define FLOOD_AS	0x20
#define EMULATED	0x80

#define IS_STD_TE(x)	        (x & STD_TE)
#define IS_PSEUDO_TE(x)		(x & PSEUDO_TE)
#define IS_INTER_AS(x) 		(x & INTER_AS)
#define IS_EMULATED(x)		(x & EMULATED)
#define IS_FLOOD_AREA(x)	(x & FLOOD_AREA)
#define IS_FLOOD_AS(x)		(x & FLOOD_AS)
#define IS_INTER_AS_EMU(x) 	(x & INTER_AS & EMULATED)
#define IS_INTER_AS_AS(x)	(x & INTER_AS & FLOOD_AS)

/* Flags to manage TE Link LSA */
#define LPFLG_LSA_INACTIVE		0x0
#define LPFLG_LSA_ACTIVE		0x1
#define LPFLG_LSA_ENGAGED		0x2
#define LPFLG_LOOKUP_DONE		0x4
#define LPFLG_LSA_FORCED_REFRESH	0x8

/*
 * Following section defines TLV (tag, length, value) structures,
 * used for Traffic Engineering.
 */
struct te_tlv_header {
	u_int16_t type;   /* TE_TLV_XXX (see below) */
	u_int16_t length; /* Value portion only, in octets */
};

#define TLV_HDR_SIZE (sizeof(struct te_tlv_header))

#define TLV_BODY_SIZE(tlvh) (ROUNDUP(ntohs((tlvh)->length), sizeof(u_int32_t)))

#define TLV_SIZE(tlvh) (TLV_HDR_SIZE + TLV_BODY_SIZE(tlvh))

#define TLV_HDR_TOP(lsah)                                                      \
	(struct te_tlv_header *)((char *)(lsah) + OSPF_LSA_HEADER_SIZE)

#define TLV_HDR_NEXT(tlvh)                                                     \
	(struct te_tlv_header *)((char *)(tlvh) + TLV_SIZE(tlvh))

#define TLV_HDR_SUBTLV(tlvh)                                                   \
	(struct te_tlv_header *)((char *)(tlvh) + TLV_HDR_SIZE)

#define TLV_TYPE(tlvh)     tlvh.header.type
#define TLV_LEN(tlvh)      tlvh.header.length
#define TLV_HDR(tlvh)      tlvh.header

/*
 * Following section defines TLV body parts.
 */
/* Router Address TLV */ /* Mandatory */
#define	TE_TLV_ROUTER_ADDR		1
struct te_tlv_router_addr {
	struct te_tlv_header header; /* Value length is 4 octets. */
	struct in_addr value;
};

/* Link TLV */
#define	TE_TLV_LINK			2
struct te_tlv_link {
	struct te_tlv_header header;
	/* A set of link-sub-TLVs will follow. */
};

#define TE_LINK_SUBTLV_DEF_SIZE		4

/* Link Type Sub-TLV */ /* Mandatory */
#define	TE_LINK_SUBTLV_LINK_TYPE	1
#define TE_LINK_SUBTLV_TYPE_SIZE	1
struct te_link_subtlv_link_type {
	struct te_tlv_header header; /* Value length is 1 octet. */
	struct {
#define	LINK_TYPE_SUBTLV_VALUE_PTP	1
#define	LINK_TYPE_SUBTLV_VALUE_MA	2
		u_char value;
		u_char padding[3];
	} link_type;
};

/* Link Sub-TLV: Link ID */ /* Mandatory */
#define	TE_LINK_SUBTLV_LINK_ID		2
struct te_link_subtlv_link_id {
	struct te_tlv_header header; /* Value length is 4 octets. */
	struct in_addr value;	/* Same as router-lsa's link-id. */
};

/* Link Sub-TLV: Local Interface IP Address */ /* Optional */
#define	TE_LINK_SUBTLV_LCLIF_IPADDR	3
struct te_link_subtlv_lclif_ipaddr {
	struct te_tlv_header header; /* Value length is 4 x N octets. */
	struct in_addr value[1];     /* Local IP address(es). */
};

/* Link Sub-TLV: Remote Interface IP Address */ /* Optional */
#define	TE_LINK_SUBTLV_RMTIF_IPADDR	4
struct te_link_subtlv_rmtif_ipaddr {
	struct te_tlv_header header; /* Value length is 4 x N octets. */
	struct in_addr value[1];     /* Neighbor's IP address(es). */
};

/* Link Sub-TLV: Traffic Engineering Metric */ /* Optional */
#define	TE_LINK_SUBTLV_TE_METRIC	5
struct te_link_subtlv_te_metric {
	struct te_tlv_header header; /* Value length is 4 octets. */
	u_int32_t value;	     /* Link metric for TE purpose. */
};

/* Link Sub-TLV: Maximum Bandwidth */ /* Optional */
#define	TE_LINK_SUBTLV_MAX_BW		6
struct te_link_subtlv_max_bw {
	struct te_tlv_header header; /* Value length is 4 octets. */
	float value;		     /* bytes/sec */
};

/* Link Sub-TLV: Maximum Reservable Bandwidth */ /* Optional */
#define	TE_LINK_SUBTLV_MAX_RSV_BW	7
struct te_link_subtlv_max_rsv_bw {
	struct te_tlv_header header; /* Value length is 4 octets. */
	float value;		     /* bytes/sec */
};

/* Link Sub-TLV: Unreserved Bandwidth */ /* Optional */
#define	TE_LINK_SUBTLV_UNRSV_BW		8
#define TE_LINK_SUBTLV_UNRSV_SIZE	32
struct te_link_subtlv_unrsv_bw {
	struct te_tlv_header header; /* Value length is 32 octets. */
	float value[MAX_CLASS_TYPE]; /* One for each priority level. */
};

/* Link Sub-TLV: Resource Class/Color */ /* Optional */
#define	TE_LINK_SUBTLV_RSC_CLSCLR	9
struct te_link_subtlv_rsc_clsclr {
	struct te_tlv_header header; /* Value length is 4 octets. */
	u_int32_t value;	     /* Admin. group membership. */
};

/* For RFC6827 */
/* Local and Remote TE Router ID */
#define TE_LINK_SUBTLV_LRRID		10
#define TE_LINK_SUBTLV_LRRID_SIZE	8
struct te_link_subtlv_lrrid {
	struct te_tlv_header header; /* Value length is 8 octets. */
	struct in_addr local;	/* Local TE Router Identifier */
	struct in_addr remote;       /* Remote TE Router Identifier */
};

/* RFC4203: Link Local/Remote Identifiers */
#define TE_LINK_SUBTLV_LLRI		11
#define TE_LINK_SUBTLV_LLRI_SIZE	8
struct te_link_subtlv_llri {
	struct te_tlv_header header; /* Value length is 8 octets. */
	u_int32_t local;	     /* Link Local Identifier */
	u_int32_t remote;	    /* Link Remote Identifier */
};

/* Inter-RA Export Upward sub-TLV (12) and Inter-RA Export Downward sub-TLV (13)
 * (RFC6827bis) are not yet supported */
/* SUBTLV 14-16 (RFC4203) are not yet supported */
/* Bandwidth Constraints sub-TLV (17) (RFC4124) is not yet supported */
/* SUBLV 18-20 are for OSPFv3 TE (RFC5329). see ospf6d */

/* For RFC 5392 */
/* Remote AS Number sub-TLV */
#define TE_LINK_SUBTLV_RAS		21
struct te_link_subtlv_ras {
	struct te_tlv_header header; /* Value length is 4 octets. */
	u_int32_t value;	     /* Remote AS number */
};

/* IPv4 Remote ASBR ID Sub-TLV */
#define TE_LINK_SUBTLV_RIP		22
struct te_link_subtlv_rip {
	struct te_tlv_header header; /* Value length is 4 octets. */
	struct in_addr value;	/* Remote ASBR IP address */
};

/* SUBTLV 24 is IPv6 Remote ASBR ID (RFC5392). see ospf6d */

/* SUBTLV 23 (RFC5330) and 25 (RFC6001) are not yet supported */

/* SUBTLV 26 (RFC7308) is not yet supported */

/* RFC7471 */
/* Link Sub-TLV: Average Link Delay */ /* Optional */
#define TE_LINK_SUBTLV_AV_DELAY		27
struct te_link_subtlv_av_delay {
	struct te_tlv_header header; /* Value length is 4 bytes. */
	u_int32_t
		value; /* delay in micro-seconds only 24 bits => 0 ... 16777215
			  with Anomalous Bit as Upper most bit */
};

/* Link Sub-TLV: Low/High Link Delay */
#define TE_LINK_SUBTLV_MM_DELAY         28
#define TE_LINK_SUBTLV_MM_DELAY_SIZE    8
struct te_link_subtlv_mm_delay {
	struct te_tlv_header header; /* Value length is 8 bytes. */
	u_int32_t low;  /* low delay in micro-seconds only 24 bits => 0 ...
			   16777215
			   with Anomalous Bit (A) as Upper most bit */
	u_int32_t high; /* high delay in micro-seconds only 24 bits => 0 ...
			   16777215 */
};

/* Link Sub-TLV: Link Delay Variation i.e. Jitter */
#define TE_LINK_SUBTLV_DELAY_VAR	29
struct te_link_subtlv_delay_var {
	struct te_tlv_header header; /* Value length is 4 bytes. */
	u_int32_t value; /* interval in micro-seconds only 24 bits => 0 ...
			    16777215 */
};

/* Link Sub-TLV: Routine Unidirectional Link Packet Loss */
#define TE_LINK_SUBTLV_PKT_LOSS		30
struct te_link_subtlv_pkt_loss {
	struct te_tlv_header header; /* Value length is 4 bytes. */
	u_int32_t
		value; /* in percentage of total traffic only 24 bits (2^24 - 2)
			  with Anomalous Bit as Upper most bit */
};

/* Link Sub-TLV: Unidirectional Residual Bandwidth */ /* Optional */
#define TE_LINK_SUBTLV_RES_BW		31
struct te_link_subtlv_res_bw {
	struct te_tlv_header header; /* Value length is 4 bytes. */
	float value; /* bandwidth in IEEE floating point format with units in
			bytes per second */
};

/* Link Sub-TLV: Unidirectional Available Bandwidth */ /* Optional */
#define TE_LINK_SUBTLV_AVA_BW		32
struct te_link_subtlv_ava_bw {
	struct te_tlv_header header; /* Value length is 4 octets. */
	float value; /* bandwidth in IEEE floating point format with units in
			bytes per second */
};

/* Link Sub-TLV: Unidirectional Utilized Bandwidth */ /* Optional */
#define TE_LINK_SUBTLV_USE_BW           33
struct te_link_subtlv_use_bw {
	struct te_tlv_header header; /* Value length is 4 octets. */
	float value; /* bandwidth in IEEE floating point format with units in
			bytes per second */
};

#define TE_LINK_SUBTLV_MAX		34      /* Last SUBTLV + 1 */

/* Here are "non-official" architectural constants. */
#define MPLS_TE_MINIMUM_BANDWIDTH	1.0	/* Reasonable? *//* XXX */

/* Following declaration concerns the MPLS-TE and LINk-TE management */
typedef enum _opcode_t {
	REORIGINATE_THIS_LSA,
	REFRESH_THIS_LSA,
	FLUSH_THIS_LSA
} opcode_t;

typedef enum _status_t { disabled, enabled } status_t;

/* Mode for Inter-AS Opaque-LSA */
enum inter_as_mode { Disable, AS, Area };

struct te_link_subtlv {
	struct te_tlv_header header;
	union {
		u_int32_t link_type;
		struct in_addr link_id;
		struct in_addr lclif;
		struct in_addr rmtif;
		u_int32_t te_metric;
		float max_bw;
		float max_rsv_bw;
		float unrsv[8];
		u_int32_t rsc_clsclr;
		u_int32_t llri[2];
		u_int32_t ras;
		struct in_addr rip;
		struct in_addr lrrid[2];
		u_int32_t av_delay;
		u_int32_t mm_delay;
		u_int32_t delay_var;
		u_int32_t pkt_loss;
		float res_bw;
		float ava_bw;
		float use_bw;
	} value;
};

/* Following structure are internal use only. */
struct ospf_mpls_te {
	/* Status of MPLS-TE: enable or disbale */
	status_t status;

	/* RFC5392 */
	enum inter_as_mode inter_as;
	struct in_addr interas_areaid;

	/* List elements are zebra-interfaces (ifp), not ospf-interfaces (oi).
	 */
	struct list *iflist;

	/* Store Router-TLV in network byte order. */
	struct te_tlv_router_addr router_addr;
};

struct mpls_te_link {
	/*
	 * According to MPLS-TE (draft) specification, 24-bit Opaque-ID field
	 * is subdivided into 8-bit "unused" field and 16-bit "instance" field.
	 * In this implementation, each Link-TLV has its own instance.
	 */
	u_int32_t instance;

	/* Reference pointer to a Zebra-interface. */
	struct interface *ifp;

	/* Area info in which this MPLS-TE link belongs to. */
	struct ospf_area *area;

	/* Flags to manage this link parameters. */
	u_int32_t flags;

	/* Type of MPLS-TE link: RFC3630, RFC5392, RFC5392 emulated, RFC6827 */
	u_int8_t type;

	/* Store Link-TLV in network byte order. */
	/* RFC3630 & RFC6827 / RFC 6827 */
	struct te_tlv_link link_header;
	struct te_link_subtlv_link_type link_type;
	struct te_link_subtlv_link_id link_id;
	struct te_link_subtlv_lclif_ipaddr lclif_ipaddr;
	struct te_link_subtlv_rmtif_ipaddr rmtif_ipaddr;
	struct te_link_subtlv_te_metric te_metric;
	struct te_link_subtlv_max_bw max_bw;
	struct te_link_subtlv_max_rsv_bw max_rsv_bw;
	struct te_link_subtlv_unrsv_bw unrsv_bw;
	struct te_link_subtlv_rsc_clsclr rsc_clsclr;
	/* RFC4203 */
	struct te_link_subtlv_llri llri;
	/* RFC5392 */
	struct te_link_subtlv_ras ras;
	struct te_link_subtlv_rip rip;
	/* RFC6827 */
	struct te_link_subtlv_lrrid lrrid;
	/* RFC7471 */
	struct te_link_subtlv_av_delay av_delay;
	struct te_link_subtlv_mm_delay mm_delay;
	struct te_link_subtlv_delay_var delay_var;
	struct te_link_subtlv_pkt_loss pkt_loss;
	struct te_link_subtlv_res_bw res_bw;
	struct te_link_subtlv_ava_bw ava_bw;
	struct te_link_subtlv_use_bw use_bw;

	struct in_addr adv_router;
	struct in_addr id;
};

/* Prototypes. */
extern int ospf_mpls_te_init(void);
extern void ospf_mpls_te_term(void);
extern struct ospf_mpls_te *get_ospf_mpls_te(void);
extern void ospf_mpls_te_update_if(struct interface *);
extern void ospf_mpls_te_lsa_schedule(struct mpls_te_link *, opcode_t);
extern u_int32_t get_mpls_te_instance_value(void);
extern void set_linkparams_llri(struct mpls_te_link *, u_int32_t, u_int32_t);
extern void set_linkparams_lrrid(struct mpls_te_link *, struct in_addr,
				 struct in_addr);

#endif /* _ZEBRA_OSPF_MPLS_TE_H */
Commit	Line	Data
718e3744	1	/*
16f1b9ee	2	* This is an implementation of RFC3630, RFC5392 & RFC6827
718e3744	3	* Copyright (C) 2001 KDD R&D Laboratories, Inc.
	4	* http://www.kddlabs.co.jp/
	5	*
16f1b9ee OD	6	* Copyright (C) 2012 Orange Labs
	7	* http://www.orange.com
	8	*
718e3744	9	* This file is part of GNU Zebra.
	10	*
	11	* GNU Zebra is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by the
	13	* Free Software Foundation; either version 2, or (at your option) any
	14	* later version.
896014f4	15	*
718e3744	16	* GNU Zebra is distributed in the hope that it will be useful, but
	17	* WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	19	* General Public License for more details.
	20	*
896014f4 DL	21	* You should have received a copy of the GNU General Public License along
	22	* with this program; see the file COPYING; if not, write to the Free Software
	23	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
718e3744	24	*/
718e3744	25
16f1b9ee OD	26	/* Add support of RFC7471 */
	27	/* Add support of RFC5392 */
	28	/* Add support of RFC6827 (partial) */
	29
718e3744	30	#ifndef _ZEBRA_OSPF_MPLS_TE_H
	31	#define _ZEBRA_OSPF_MPLS_TE_H
	32
	33	/*
	34	* Opaque LSA's link state ID for Traffic Engineering is
	35	* structured as follows.
	36	*
	37	* 24 16 8 0
	38	* +--------+--------+--------+--------+
	39	* \| 1 \| MBZ \|........\|........\|
	40	* +--------+--------+--------+--------+
	41	* \|<-Type->\|<Resv'd>\|<-- Instance --->\|
	42	*
	43	*
	44	* Type: IANA has assigned '1' for Traffic Engineering.
	45	* MBZ: Reserved, must be set to zero.
	46	* Instance: User may select an arbitrary 16-bit value.
	47	*
	48	*/
	49
703819a9	50	#define MAX_LEGAL_TE_INSTANCE_NUM (0xffff)
16f1b9ee	51	#define LEGAL_TE_INSTANCE_RANGE(i) (0 <= (i) && (i) <= 0xffff)
718e3744	52
	53	/*
	54	* 24 16 8 0
	55	* +--------+--------+--------+--------+ ---
	56	* \| LS age \|Options \| 10 \| A
	57	* +--------+--------+--------+--------+ \|
	58	* \| 1 \| 0 \| Instance \| \|
	59	* +--------+--------+--------+--------+ \|
	60	* \| Advertising router \| \| Standard (Opaque) LSA header;
	61	* +--------+--------+--------+--------+ \| Only type-10 is used.
	62	* \| LS sequence number \| \|
	63	* +--------+--------+--------+--------+ \|
	64	* \| LS checksum \| Length \| V
	65	* +--------+--------+--------+--------+ ---
	66	* \| Type \| Length \| A
	67	* +--------+--------+--------+--------+ \| TLV part for TE; Values might be
	68	* \| Values ... \| V structured as a set of sub-TLVs.
	69	* +--------+--------+--------+--------+ ---
	70	*/
	71
16f1b9ee OD	72	/* Following define the type of TE link regarding the various RFC */
	73	#define STD_TE 0x01
	74	#define GMPLS 0x02
	75	#define INTER_AS 0x04
	76	#define PSEUDO_TE 0x08
	77	#define FLOOD_AREA 0x10
	78	#define FLOOD_AS 0x20
	79	#define EMULATED 0x80
	80
	81	#define IS_STD_TE(x) (x & STD_TE)
	82	#define IS_PSEUDO_TE(x) (x & PSEUDO_TE)
	83	#define IS_INTER_AS(x) (x & INTER_AS)
	84	#define IS_EMULATED(x) (x & EMULATED)
	85	#define IS_FLOOD_AREA(x) (x & FLOOD_AREA)
	86	#define IS_FLOOD_AS(x) (x & FLOOD_AS)
	87	#define IS_INTER_AS_EMU(x) (x & INTER_AS & EMULATED)
	88	#define IS_INTER_AS_AS(x) (x & INTER_AS & FLOOD_AS)
	89
	90	/* Flags to manage TE Link LSA */
	91	#define LPFLG_LSA_INACTIVE 0x0
	92	#define LPFLG_LSA_ACTIVE 0x1
	93	#define LPFLG_LSA_ENGAGED 0x2
	94	#define LPFLG_LOOKUP_DONE 0x4
	95	#define LPFLG_LSA_FORCED_REFRESH 0x8
	96
718e3744	97	/*
	98	* Following section defines TLV (tag, length, value) structures,
	99	* used for Traffic Engineering.
	100	*/
d62a17ae	101	struct te_tlv_header {
	102	u_int16_t type; /* TE_TLV_XXX (see below) */
	103	u_int16_t length; /* Value portion only, in octets */
718e3744	104	};
718e3744	105
d62a17ae	106	#define TLV_HDR_SIZE (sizeof(struct te_tlv_header))
718e3744	107
d62a17ae	108	#define TLV_BODY_SIZE(tlvh) (ROUNDUP(ntohs((tlvh)->length), sizeof(u_int32_t)))
718e3744	109
d62a17ae	110	#define TLV_SIZE(tlvh) (TLV_HDR_SIZE + TLV_BODY_SIZE(tlvh))
718e3744	111
d62a17ae	112	#define TLV_HDR_TOP(lsah) \
718e3744	113	(struct te_tlv_header )((char )(lsah) + OSPF_LSA_HEADER_SIZE)
718e3744	114
d62a17ae	115	#define TLV_HDR_NEXT(tlvh) \
718e3744	116	(struct te_tlv_header )((char )(tlvh) + TLV_SIZE(tlvh))
718e3744	117
d62a17ae	118	#define TLV_HDR_SUBTLV(tlvh) \
16f1b9ee OD	119	(struct te_tlv_header )((char )(tlvh) + TLV_HDR_SIZE)
	120
	121	#define TLV_TYPE(tlvh) tlvh.header.type
	122	#define TLV_LEN(tlvh) tlvh.header.length
	123	#define TLV_HDR(tlvh) tlvh.header
	124
718e3744	125	/*
	126	* Following section defines TLV body parts.
	127	*/
16f1b9ee	128	/* Router Address TLV / / Mandatory */
718e3744	129	#define TE_TLV_ROUTER_ADDR 1
d62a17ae	130	struct te_tlv_router_addr {
	131	struct te_tlv_header header; /* Value length is 4 octets. */
	132	struct in_addr value;
718e3744	133	};
	134
	135	/* Link TLV */
	136	#define TE_TLV_LINK 2
d62a17ae	137	struct te_tlv_link {
	138	struct te_tlv_header header;
	139	/* A set of link-sub-TLVs will follow. */
718e3744	140	};
718e3744	141
16f1b9ee OD	142	#define TE_LINK_SUBTLV_DEF_SIZE 4
	143
	144	/* Link Type Sub-TLV / / Mandatory */
	145	#define TE_LINK_SUBTLV_LINK_TYPE 1
	146	#define TE_LINK_SUBTLV_TYPE_SIZE 1
d62a17ae	147	struct te_link_subtlv_link_type {
	148	struct te_tlv_header header; /* Value length is 1 octet. */
	149	struct {
718e3744	150	#define LINK_TYPE_SUBTLV_VALUE_PTP 1
718e3744	151	#define LINK_TYPE_SUBTLV_VALUE_MA 2
d62a17ae	152	u_char value;
	153	u_char padding[3];
	154	} link_type;
718e3744	155	};
718e3744	156
16f1b9ee OD	157	/* Link Sub-TLV: Link ID / / Mandatory */
16f1b9ee OD	158	#define TE_LINK_SUBTLV_LINK_ID 2
d62a17ae	159	struct te_link_subtlv_link_id {
	160	struct te_tlv_header header; /* Value length is 4 octets. */
	161	struct in_addr value; /* Same as router-lsa's link-id. */
718e3744	162	};
718e3744	163
16f1b9ee OD	164	/* Link Sub-TLV: Local Interface IP Address / / Optional */
16f1b9ee OD	165	#define TE_LINK_SUBTLV_LCLIF_IPADDR 3
d62a17ae	166	struct te_link_subtlv_lclif_ipaddr {
	167	struct te_tlv_header header; /* Value length is 4 x N octets. */
	168	struct in_addr value[1]; /* Local IP address(es). */
718e3744	169	};
718e3744	170
16f1b9ee OD	171	/* Link Sub-TLV: Remote Interface IP Address / / Optional */
16f1b9ee OD	172	#define TE_LINK_SUBTLV_RMTIF_IPADDR 4
d62a17ae	173	struct te_link_subtlv_rmtif_ipaddr {
	174	struct te_tlv_header header; /* Value length is 4 x N octets. */
	175	struct in_addr value[1]; /* Neighbor's IP address(es). */
718e3744	176	};
718e3744	177
16f1b9ee OD	178	/* Link Sub-TLV: Traffic Engineering Metric / / Optional */
16f1b9ee OD	179	#define TE_LINK_SUBTLV_TE_METRIC 5
d62a17ae	180	struct te_link_subtlv_te_metric {
	181	struct te_tlv_header header; /* Value length is 4 octets. */
	182	u_int32_t value; /* Link metric for TE purpose. */
718e3744	183	};
718e3744	184
16f1b9ee OD	185	/* Link Sub-TLV: Maximum Bandwidth / / Optional */
16f1b9ee OD	186	#define TE_LINK_SUBTLV_MAX_BW 6
d62a17ae	187	struct te_link_subtlv_max_bw {
	188	struct te_tlv_header header; /* Value length is 4 octets. */
	189	float value; /* bytes/sec */
718e3744	190	};
718e3744	191
16f1b9ee OD	192	/* Link Sub-TLV: Maximum Reservable Bandwidth / / Optional */
16f1b9ee OD	193	#define TE_LINK_SUBTLV_MAX_RSV_BW 7
d62a17ae	194	struct te_link_subtlv_max_rsv_bw {
	195	struct te_tlv_header header; /* Value length is 4 octets. */
	196	float value; /* bytes/sec */
718e3744	197	};
718e3744	198
16f1b9ee OD	199	/* Link Sub-TLV: Unreserved Bandwidth / / Optional */
	200	#define TE_LINK_SUBTLV_UNRSV_BW 8
	201	#define TE_LINK_SUBTLV_UNRSV_SIZE 32
d62a17ae	202	struct te_link_subtlv_unrsv_bw {
	203	struct te_tlv_header header; /* Value length is 32 octets. */
	204	float value[MAX_CLASS_TYPE]; /* One for each priority level. */
718e3744	205	};
718e3744	206
16f1b9ee OD	207	/* Link Sub-TLV: Resource Class/Color / / Optional */
16f1b9ee OD	208	#define TE_LINK_SUBTLV_RSC_CLSCLR 9
d62a17ae	209	struct te_link_subtlv_rsc_clsclr {
	210	struct te_tlv_header header; /* Value length is 4 octets. */
	211	u_int32_t value; /* Admin. group membership. */
718e3744	212	};
718e3744	213
16f1b9ee OD	214	/* For RFC6827 */
	215	/* Local and Remote TE Router ID */
	216	#define TE_LINK_SUBTLV_LRRID 10
	217	#define TE_LINK_SUBTLV_LRRID_SIZE 8
d62a17ae	218	struct te_link_subtlv_lrrid {
	219	struct te_tlv_header header; /* Value length is 8 octets. */
	220	struct in_addr local; /* Local TE Router Identifier */
	221	struct in_addr remote; /* Remote TE Router Identifier */
16f1b9ee OD	222	};
	223
	224	/* RFC4203: Link Local/Remote Identifiers */
	225	#define TE_LINK_SUBTLV_LLRI 11
	226	#define TE_LINK_SUBTLV_LLRI_SIZE 8
d62a17ae	227	struct te_link_subtlv_llri {
	228	struct te_tlv_header header; /* Value length is 8 octets. */
	229	u_int32_t local; /* Link Local Identifier */
	230	u_int32_t remote; /* Link Remote Identifier */
16f1b9ee OD	231	};
16f1b9ee OD	232
d62a17ae	233	/* Inter-RA Export Upward sub-TLV (12) and Inter-RA Export Downward sub-TLV (13)
d62a17ae	234	* (RFC6827bis) are not yet supported */
16f1b9ee OD	235	/* SUBTLV 14-16 (RFC4203) are not yet supported */
16f1b9ee OD	236	/* Bandwidth Constraints sub-TLV (17) (RFC4124) is not yet supported */
b2d4d039	237	/* SUBLV 18-20 are for OSPFv3 TE (RFC5329). see ospf6d */
16f1b9ee OD	238
	239	/* For RFC 5392 */
	240	/* Remote AS Number sub-TLV */
	241	#define TE_LINK_SUBTLV_RAS 21
d62a17ae	242	struct te_link_subtlv_ras {
	243	struct te_tlv_header header; /* Value length is 4 octets. */
	244	u_int32_t value; /* Remote AS number */
16f1b9ee OD	245	};
	246
	247	/* IPv4 Remote ASBR ID Sub-TLV */
	248	#define TE_LINK_SUBTLV_RIP 22
d62a17ae	249	struct te_link_subtlv_rip {
	250	struct te_tlv_header header; /* Value length is 4 octets. */
	251	struct in_addr value; /* Remote ASBR IP address */
16f1b9ee OD	252	};
	253
	254	/* SUBTLV 24 is IPv6 Remote ASBR ID (RFC5392). see ospf6d */
	255
	256	/* SUBTLV 23 (RFC5330) and 25 (RFC6001) are not yet supported */
	257
	258	/* SUBTLV 26 (RFC7308) is not yet supported */
	259
	260	/* RFC7471 */
	261	/* Link Sub-TLV: Average Link Delay / / Optional */
	262	#define TE_LINK_SUBTLV_AV_DELAY 27
d62a17ae	263	struct te_link_subtlv_av_delay {
	264	struct te_tlv_header header; /* Value length is 4 bytes. */
	265	u_int32_t
	266	value; /* delay in micro-seconds only 24 bits => 0 ... 16777215
	267	with Anomalous Bit as Upper most bit */
16f1b9ee OD	268	};
	269
	270	/* Link Sub-TLV: Low/High Link Delay */
	271	#define TE_LINK_SUBTLV_MM_DELAY 28
	272	#define TE_LINK_SUBTLV_MM_DELAY_SIZE 8
d62a17ae	273	struct te_link_subtlv_mm_delay {
	274	struct te_tlv_header header; /* Value length is 8 bytes. */
	275	u_int32_t low; /* low delay in micro-seconds only 24 bits => 0 ...
	276	16777215
	277	with Anomalous Bit (A) as Upper most bit */
	278	u_int32_t high; /* high delay in micro-seconds only 24 bits => 0 ...
	279	16777215 */
16f1b9ee OD	280	};
	281
	282	/* Link Sub-TLV: Link Delay Variation i.e. Jitter */
	283	#define TE_LINK_SUBTLV_DELAY_VAR 29
d62a17ae	284	struct te_link_subtlv_delay_var {
	285	struct te_tlv_header header; /* Value length is 4 bytes. */
	286	u_int32_t value; /* interval in micro-seconds only 24 bits => 0 ...
	287	16777215 */
16f1b9ee OD	288	};
	289
	290	/* Link Sub-TLV: Routine Unidirectional Link Packet Loss */
	291	#define TE_LINK_SUBTLV_PKT_LOSS 30
d62a17ae	292	struct te_link_subtlv_pkt_loss {
	293	struct te_tlv_header header; /* Value length is 4 bytes. */
	294	u_int32_t
	295	value; /* in percentage of total traffic only 24 bits (2^24 - 2)
	296	with Anomalous Bit as Upper most bit */
16f1b9ee OD	297	};
	298
	299	/* Link Sub-TLV: Unidirectional Residual Bandwidth / / Optional */
	300	#define TE_LINK_SUBTLV_RES_BW 31
d62a17ae	301	struct te_link_subtlv_res_bw {
	302	struct te_tlv_header header; /* Value length is 4 bytes. */
	303	float value; /* bandwidth in IEEE floating point format with units in
	304	bytes per second */
16f1b9ee OD	305	};
	306
	307	/* Link Sub-TLV: Unidirectional Available Bandwidth / / Optional */
	308	#define TE_LINK_SUBTLV_AVA_BW 32
d62a17ae	309	struct te_link_subtlv_ava_bw {
	310	struct te_tlv_header header; /* Value length is 4 octets. */
	311	float value; /* bandwidth in IEEE floating point format with units in
	312	bytes per second */
16f1b9ee OD	313	};
	314
	315	/* Link Sub-TLV: Unidirectional Utilized Bandwidth / / Optional */
	316	#define TE_LINK_SUBTLV_USE_BW 33
d62a17ae	317	struct te_link_subtlv_use_bw {
	318	struct te_tlv_header header; /* Value length is 4 octets. */
	319	float value; /* bandwidth in IEEE floating point format with units in
	320	bytes per second */
16f1b9ee OD	321	};
	322
	323	#define TE_LINK_SUBTLV_MAX 34 /* Last SUBTLV + 1 */
	324
	325	/* Here are "non-official" architectural constants. */
718e3744	326	#define MPLS_TE_MINIMUM_BANDWIDTH 1.0 /* Reasonable? // XXX */
718e3744	327
16f1b9ee	328	/* Following declaration concerns the MPLS-TE and LINk-TE management */
d62a17ae	329	typedef enum _opcode_t {
	330	REORIGINATE_THIS_LSA,
	331	REFRESH_THIS_LSA,
	332	FLUSH_THIS_LSA
	333	} opcode_t;
16f1b9ee	334
d62a17ae	335	typedef enum _status_t { disabled, enabled } status_t;
16f1b9ee OD	336
	337	/* Mode for Inter-AS Opaque-LSA */
	338	enum inter_as_mode { Disable, AS, Area };
	339
d62a17ae	340	struct te_link_subtlv {
	341	struct te_tlv_header header;
	342	union {
	343	u_int32_t link_type;
	344	struct in_addr link_id;
	345	struct in_addr lclif;
	346	struct in_addr rmtif;
	347	u_int32_t te_metric;
	348	float max_bw;
	349	float max_rsv_bw;
	350	float unrsv[8];
	351	u_int32_t rsc_clsclr;
	352	u_int32_t llri[2];
	353	u_int32_t ras;
	354	struct in_addr rip;
	355	struct in_addr lrrid[2];
	356	u_int32_t av_delay;
	357	u_int32_t mm_delay;
	358	u_int32_t delay_var;
	359	u_int32_t pkt_loss;
	360	float res_bw;
	361	float ava_bw;
	362	float use_bw;
	363	} value;
16f1b9ee OD	364	};
	365
	366	/* Following structure are internal use only. */
d62a17ae	367	struct ospf_mpls_te {
	368	/* Status of MPLS-TE: enable or disbale */
	369	status_t status;
16f1b9ee	370
d62a17ae	371	/* RFC5392 */
	372	enum inter_as_mode inter_as;
	373	struct in_addr interas_areaid;
16f1b9ee	374
d62a17ae	375	/* List elements are zebra-interfaces (ifp), not ospf-interfaces (oi).
	376	*/
	377	struct list *iflist;
16f1b9ee	378
d62a17ae	379	/* Store Router-TLV in network byte order. */
d62a17ae	380	struct te_tlv_router_addr router_addr;
16f1b9ee OD	381	};
16f1b9ee OD	382
d62a17ae	383	struct mpls_te_link {
	384	/*
	385	* According to MPLS-TE (draft) specification, 24-bit Opaque-ID field
	386	* is subdivided into 8-bit "unused" field and 16-bit "instance" field.
	387	* In this implementation, each Link-TLV has its own instance.
	388	*/
	389	u_int32_t instance;
	390
	391	/* Reference pointer to a Zebra-interface. */
	392	struct interface *ifp;
	393
	394	/* Area info in which this MPLS-TE link belongs to. */
	395	struct ospf_area *area;
	396
	397	/* Flags to manage this link parameters. */
	398	u_int32_t flags;
	399
	400	/* Type of MPLS-TE link: RFC3630, RFC5392, RFC5392 emulated, RFC6827 */
	401	u_int8_t type;
	402
	403	/* Store Link-TLV in network byte order. */
	404	/* RFC3630 & RFC6827 / RFC 6827 */
	405	struct te_tlv_link link_header;
	406	struct te_link_subtlv_link_type link_type;
	407	struct te_link_subtlv_link_id link_id;
	408	struct te_link_subtlv_lclif_ipaddr lclif_ipaddr;
	409	struct te_link_subtlv_rmtif_ipaddr rmtif_ipaddr;
	410	struct te_link_subtlv_te_metric te_metric;
	411	struct te_link_subtlv_max_bw max_bw;
	412	struct te_link_subtlv_max_rsv_bw max_rsv_bw;
	413	struct te_link_subtlv_unrsv_bw unrsv_bw;
	414	struct te_link_subtlv_rsc_clsclr rsc_clsclr;
	415	/* RFC4203 */
	416	struct te_link_subtlv_llri llri;
	417	/* RFC5392 */
	418	struct te_link_subtlv_ras ras;
	419	struct te_link_subtlv_rip rip;
	420	/* RFC6827 */
	421	struct te_link_subtlv_lrrid lrrid;
	422	/* RFC7471 */
	423	struct te_link_subtlv_av_delay av_delay;
	424	struct te_link_subtlv_mm_delay mm_delay;
	425	struct te_link_subtlv_delay_var delay_var;
	426	struct te_link_subtlv_pkt_loss pkt_loss;
	427	struct te_link_subtlv_res_bw res_bw;
	428	struct te_link_subtlv_ava_bw ava_bw;
	429	struct te_link_subtlv_use_bw use_bw;
	430
	431	struct in_addr adv_router;
	432	struct in_addr id;
16f1b9ee OD	433	};
16f1b9ee OD	434
718e3744	435	/* Prototypes. */
d62a17ae	436	extern int ospf_mpls_te_init(void);
	437	extern void ospf_mpls_te_term(void);
	438	extern struct ospf_mpls_te *get_ospf_mpls_te(void);
	439	extern void ospf_mpls_te_update_if(struct interface *);
	440	extern void ospf_mpls_te_lsa_schedule(struct mpls_te_link *, opcode_t);
	441	extern u_int32_t get_mpls_te_instance_value(void);
	442	extern void set_linkparams_llri(struct mpls_te_link *, u_int32_t, u_int32_t);
	443	extern void set_linkparams_lrrid(struct mpls_te_link *, struct in_addr,
	444	struct in_addr);
718e3744	445
718e3744	446	#endif /* _ZEBRA_OSPF_MPLS_TE_H */