Annotation of embedaddon/quagga/ospfd/ospf_te.h, revision 1.1
1.1 ! misho 1: /*
! 2: * This is an implementation of draft-katz-yeung-ospf-traffic-06.txt
! 3: * Copyright (C) 2001 KDD R&D Laboratories, Inc.
! 4: * http://www.kddlabs.co.jp/
! 5: *
! 6: * This file is part of GNU Zebra.
! 7: *
! 8: * GNU Zebra 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: * GNU Zebra 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 GNU Zebra; 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: */
! 23:
! 24: #ifndef _ZEBRA_OSPF_MPLS_TE_H
! 25: #define _ZEBRA_OSPF_MPLS_TE_H
! 26:
! 27: /*
! 28: * Opaque LSA's link state ID for Traffic Engineering is
! 29: * structured as follows.
! 30: *
! 31: * 24 16 8 0
! 32: * +--------+--------+--------+--------+
! 33: * | 1 | MBZ |........|........|
! 34: * +--------+--------+--------+--------+
! 35: * |<-Type->|<Resv'd>|<-- Instance --->|
! 36: *
! 37: *
! 38: * Type: IANA has assigned '1' for Traffic Engineering.
! 39: * MBZ: Reserved, must be set to zero.
! 40: * Instance: User may select an arbitrary 16-bit value.
! 41: *
! 42: */
! 43:
! 44: #define LEGAL_TE_INSTANCE_RANGE(i) (0 <= (i) && (i) <= 0xffff)
! 45:
! 46: /*
! 47: * 24 16 8 0
! 48: * +--------+--------+--------+--------+ ---
! 49: * | LS age |Options | 10 | A
! 50: * +--------+--------+--------+--------+ |
! 51: * | 1 | 0 | Instance | |
! 52: * +--------+--------+--------+--------+ |
! 53: * | Advertising router | | Standard (Opaque) LSA header;
! 54: * +--------+--------+--------+--------+ | Only type-10 is used.
! 55: * | LS sequence number | |
! 56: * +--------+--------+--------+--------+ |
! 57: * | LS checksum | Length | V
! 58: * +--------+--------+--------+--------+ ---
! 59: * | Type | Length | A
! 60: * +--------+--------+--------+--------+ | TLV part for TE; Values might be
! 61: * | Values ... | V structured as a set of sub-TLVs.
! 62: * +--------+--------+--------+--------+ ---
! 63: */
! 64:
! 65: /*
! 66: * Following section defines TLV (tag, length, value) structures,
! 67: * used for Traffic Engineering.
! 68: */
! 69: struct te_tlv_header
! 70: {
! 71: u_int16_t type; /* TE_TLV_XXX (see below) */
! 72: u_int16_t length; /* Value portion only, in octets */
! 73: };
! 74:
! 75: #define TLV_HDR_SIZE \
! 76: (sizeof (struct te_tlv_header))
! 77:
! 78: #define TLV_BODY_SIZE(tlvh) \
! 79: (ROUNDUP (ntohs ((tlvh)->length), sizeof (u_int32_t)))
! 80:
! 81: #define TLV_SIZE(tlvh) \
! 82: (TLV_HDR_SIZE + TLV_BODY_SIZE(tlvh))
! 83:
! 84: #define TLV_HDR_TOP(lsah) \
! 85: (struct te_tlv_header *)((char *)(lsah) + OSPF_LSA_HEADER_SIZE)
! 86:
! 87: #define TLV_HDR_NEXT(tlvh) \
! 88: (struct te_tlv_header *)((char *)(tlvh) + TLV_SIZE(tlvh))
! 89:
! 90: /*
! 91: * Following section defines TLV body parts.
! 92: */
! 93: /* Router Address TLV *//* Mandatory */
! 94: #define TE_TLV_ROUTER_ADDR 1
! 95: struct te_tlv_router_addr
! 96: {
! 97: struct te_tlv_header header; /* Value length is 4 octets. */
! 98: struct in_addr value;
! 99: };
! 100:
! 101: /* Link TLV */
! 102: #define TE_TLV_LINK 2
! 103: struct te_tlv_link
! 104: {
! 105: struct te_tlv_header header;
! 106: /* A set of link-sub-TLVs will follow. */
! 107: };
! 108:
! 109: /* Link Type Sub-TLV *//* Mandatory */
! 110: #define TE_LINK_SUBTLV_LINK_TYPE 1
! 111: struct te_link_subtlv_link_type
! 112: {
! 113: struct te_tlv_header header; /* Value length is 1 octet. */
! 114: struct {
! 115: #define LINK_TYPE_SUBTLV_VALUE_PTP 1
! 116: #define LINK_TYPE_SUBTLV_VALUE_MA 2
! 117: u_char value;
! 118: u_char padding[3];
! 119: } link_type;
! 120: };
! 121:
! 122: /* Link Sub-TLV: Link ID *//* Mandatory */
! 123: #define TE_LINK_SUBTLV_LINK_ID 2
! 124: struct te_link_subtlv_link_id
! 125: {
! 126: struct te_tlv_header header; /* Value length is 4 octets. */
! 127: struct in_addr value; /* Same as router-lsa's link-id. */
! 128: };
! 129:
! 130: /* Link Sub-TLV: Local Interface IP Address *//* Optional */
! 131: #define TE_LINK_SUBTLV_LCLIF_IPADDR 3
! 132: struct te_link_subtlv_lclif_ipaddr
! 133: {
! 134: struct te_tlv_header header; /* Value length is 4 x N octets. */
! 135: struct in_addr value[1]; /* Local IP address(es). */
! 136: };
! 137:
! 138: /* Link Sub-TLV: Remote Interface IP Address *//* Optional */
! 139: #define TE_LINK_SUBTLV_RMTIF_IPADDR 4
! 140: struct te_link_subtlv_rmtif_ipaddr
! 141: {
! 142: struct te_tlv_header header; /* Value length is 4 x N octets. */
! 143: struct in_addr value[1]; /* Neighbor's IP address(es). */
! 144: };
! 145:
! 146: /* Link Sub-TLV: Traffic Engineering Metric *//* Optional */
! 147: #define TE_LINK_SUBTLV_TE_METRIC 5
! 148: struct te_link_subtlv_te_metric
! 149: {
! 150: struct te_tlv_header header; /* Value length is 4 octets. */
! 151: u_int32_t value; /* Link metric for TE purpose. */
! 152: };
! 153:
! 154: /* Link Sub-TLV: Maximum Bandwidth *//* Optional */
! 155: #define TE_LINK_SUBTLV_MAX_BW 6
! 156: struct te_link_subtlv_max_bw
! 157: {
! 158: struct te_tlv_header header; /* Value length is 4 octets. */
! 159: float value; /* bytes/sec */
! 160: };
! 161:
! 162: /* Link Sub-TLV: Maximum Reservable Bandwidth *//* Optional */
! 163: #define TE_LINK_SUBTLV_MAX_RSV_BW 7
! 164: struct te_link_subtlv_max_rsv_bw
! 165: {
! 166: struct te_tlv_header header; /* Value length is 4 octets. */
! 167: float value; /* bytes/sec */
! 168: };
! 169:
! 170: /* Link Sub-TLV: Unreserved Bandwidth *//* Optional */
! 171: #define TE_LINK_SUBTLV_UNRSV_BW 8
! 172: struct te_link_subtlv_unrsv_bw
! 173: {
! 174: struct te_tlv_header header; /* Value length is 32 octets. */
! 175: float value[8]; /* One for each priority level. */
! 176: };
! 177:
! 178: /* Link Sub-TLV: Resource Class/Color *//* Optional */
! 179: #define TE_LINK_SUBTLV_RSC_CLSCLR 9
! 180: struct te_link_subtlv_rsc_clsclr
! 181: {
! 182: struct te_tlv_header header; /* Value length is 4 octets. */
! 183: u_int32_t value; /* Admin. group membership. */
! 184: };
! 185:
! 186: /* Here are "non-official" architechtual constants. */
! 187: #define MPLS_TE_MINIMUM_BANDWIDTH 1.0 /* Reasonable? *//* XXX */
! 188:
! 189: /* Prototypes. */
! 190: extern int ospf_mpls_te_init (void);
! 191: extern void ospf_mpls_te_term (void);
! 192:
! 193: #endif /* _ZEBRA_OSPF_MPLS_TE_H */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to ospf_te.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / quagga / ospfd