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Add support Router Capabilities support to OSPF
This is an implementation of RFC4970 (Router Information) and RFC5088 (PCE Capabilities announcement) * ospfd/Makefile.am: Add new file ospf_ri.c and ospf_ri.h * ospfd/ospf_opaque.c: Add new Router Capabilities code point * ospfd/ospf_ri.[c,h]: Implementation of RFC4970 & RFC5088 Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
This commit is contained in:
Olivier Dugeon
Donald Sharp
parent
4b547606e8
commit
0ef4bcdca0
@ -16,7 +16,7 @@ libospf_la_SOURCES = \
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ospf_nsm.c ospf_dump.c ospf_network.c ospf_packet.c ospf_lsa.c \
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ospf_spf.c ospf_route.c ospf_ase.c ospf_abr.c ospf_ia.c ospf_flood.c \
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ospf_lsdb.c ospf_asbr.c ospf_routemap.c ospf_snmp.c \
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ospf_opaque.c ospf_te.c ospf_vty.c ospf_api.c ospf_apiserver.c \
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ospf_opaque.c ospf_te.c ospf_ri.c ospf_vty.c ospf_api.c ospf_apiserver.c \
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ospf_bfd.c
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ospfdheaderdir = $(pkgincludedir)/ospfd
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@ -28,12 +28,12 @@ ospfdheader_HEADERS = \
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noinst_HEADERS = \
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ospf_interface.h ospf_neighbor.h ospf_network.h ospf_packet.h \
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ospf_zebra.h ospf_spf.h ospf_route.h ospf_ase.h ospf_abr.h ospf_ia.h \
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ospf_flood.h ospf_snmp.h ospf_te.h ospf_vty.h ospf_apiserver.h \
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ospf_flood.h ospf_snmp.h ospf_te.h ospf_ri.h ospf_vty.h ospf_apiserver.h \
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ospf_bfd.h
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ospfd_SOURCES = ospf_main.c
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ospfd_LDADD = libospf.la ../lib/libzebra.la @LIBCAP@
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ospfd_LDADD = libospf.la ../lib/libzebra.la @LIBCAP@ @LIBM@
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EXTRA_DIST = OSPF-MIB.txt OSPF-TRAP-MIB.txt ChangeLog.opaque.txt
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@ -62,6 +62,7 @@
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*------------------------------------------------------------------------*/
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#include "ospfd/ospf_te.h"
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#include "ospfd/ospf_ri.h"
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#ifdef SUPPORT_OSPF_API
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int ospf_apiserver_init (void);
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@ -87,6 +88,9 @@ ospf_opaque_init (void)
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if (ospf_mpls_te_init () != 0)
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exit (1);
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if (ospf_router_info_init () != 0)
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exit (1);
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#ifdef SUPPORT_OSPF_API
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if ((ospf_apiserver_enable) && (ospf_apiserver_init () != 0))
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exit (1);
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@ -100,6 +104,8 @@ ospf_opaque_term (void)
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{
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ospf_mpls_te_term ();
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ospf_router_info_term ();
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#ifdef SUPPORT_OSPF_API
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ospf_apiserver_term ();
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#endif /* SUPPORT_OSPF_API */
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@ -216,6 +222,9 @@ ospf_opaque_type_name (u_char opaque_type)
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case OPAQUE_TYPE_INTER_AS_LSA:
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name = "Inter-AS TE-v2 LSA";
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break;
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case OPAQUE_TYPE_ROUTER_INFORMATION_LSA:
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name = "Router Information LSA";
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break;
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default:
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if (OPAQUE_TYPE_RANGE_UNASSIGNED (opaque_type))
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name = "Unassigned";
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1639
ospfd/ospf_ri.c
Normal file
1639
ospfd/ospf_ri.c
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File diff suppressed because it is too large
Load Diff
191
ospfd/ospf_ri.h
Normal file
191
ospfd/ospf_ri.h
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@ -0,0 +1,191 @@
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/*
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* This is an implementation of RFC4970 Router Information
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* with support of RFC5088 PCE Capabilites announcement
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*
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* Module name: Router Information
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* Version: 0.99.22
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* Created: 2012-02-01 by Olivier Dugeon
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* Copyright (C) 2012 Orange Labs http://www.orange.com/
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Zebra; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _ZEBRA_OSPF_ROUTER_INFO_H
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#define _ZEBRA_OSPF_ROUTER_INFO_H
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/*
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* Opaque LSA's link state ID for Router Information is
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* structured as follows.
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*
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* 24 16 8 0
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* +--------+--------+--------+--------+
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* | 1 | MBZ |........|........|
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* +--------+--------+--------+--------+
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* |<-Type->|<Resv'd>|<-- Instance --->|
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*
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*
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* Type: IANA has assigned '4' for Router Information.
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* MBZ: Reserved, must be set to zero.
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* Instance: User may select an arbitrary 16-bit value.
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*
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*/
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/*
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* 24 16 8 0
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* +--------+--------+--------+--------+ ---
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* | LS age |Options | 9,10,11| A
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* +--------+--------+--------+--------+ |
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* | 4 | 0 | Instance | |
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* +--------+--------+--------+--------+ |
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* | Advertising router | | Standard (Opaque) LSA header;
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* +--------+--------+--------+--------+ | Type 9,10 or 11 are used.
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* | LS sequence number | |
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* +--------+--------+--------+--------+ |
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* | LS checksum | Length | V
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* +--------+--------+--------+--------+ ---
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* | Type | Length | A
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* +--------+--------+--------+--------+ | TLV part for Router Information; Values might be
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* | Values ... | V structured as a set of sub-TLVs.
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* +--------+--------+--------+--------+ ---
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*/
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/*
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* Following section defines TLV (tag, length, value) structures,
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* used for Router Information.
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*/
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struct ri_tlv_header
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{
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u_int16_t type; /* RI_TLV_XXX (see below) */
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u_int16_t length; /* Value portion only, in byte */
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};
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#define RI_TLV_HDR_SIZE (sizeof (struct ri_tlv_header))
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#define RI_TLV_BODY_SIZE(tlvh) (ROUNDUP (ntohs ((tlvh)->length), sizeof (u_int32_t)))
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#define RI_TLV_SIZE(tlvh) (RI_TLV_HDR_SIZE + RI_TLV_BODY_SIZE(tlvh))
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#define RI_TLV_HDR_TOP(lsah) (struct ri_tlv_header *)((char *)(lsah) + OSPF_LSA_HEADER_SIZE)
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#define RI_TLV_HDR_NEXT(tlvh) (struct ri_tlv_header *)((char *)(tlvh) + RI_TLV_SIZE(tlvh))
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/*
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* Following section defines TLV body parts.
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*/
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/* Up to now, 8 code point have been assigned to Router Information */
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/* Only type 1 Router Capabilities and 6 PCE are supported with this code */
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#define RI_IANA_MAX_TYPE 8
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/* RFC4970: Router Information Capabilities TLV */ /* Mandatory */
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#define RI_TLV_CAPABILITIES 1
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struct ri_tlv_router_cap
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{
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struct ri_tlv_header header; /* Value length is 4 bytes. */
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u_int32_t value;
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};
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#define RI_GRACE_RESTART 0x01
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#define RI_GRACE_HELPER 0x02
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#define RI_STUB_SUPPORT 0x04
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#define RI_TE_SUPPORT 0x08
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#define RI_P2P_OVER_LAN 0x10
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#define RI_TE_EXPERIMENTAL 0x20
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#define RI_TLV_LENGTH 4
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/* RFC5088: PCE Capabilities TLV */ /* Optional */
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/* RI PCE TLV */
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#define RI_TLV_PCE 6
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struct ri_tlv_pce
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{
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struct ri_tlv_header header;
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/* A set of PCE-sub-TLVs will follow. */
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};
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/* PCE Address Sub-TLV */ /* Mandatory */
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#define RI_PCE_SUBTLV_ADDRESS 1
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struct ri_pce_subtlv_address
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{
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struct ri_tlv_header header; /* Type = 1; Length is 8 (IPv4) or 20 (IPv6) bytes. */
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#define PCE_ADDRESS_LENGTH_IPV4 8
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#define PCE_ADDRESS_LENGTH_IPV6 20
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struct
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{
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u_int16_t type; /* Address type: 1 = IPv4, 2 = IPv6 */
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#define PCE_ADDRESS_TYPE_IPV4 1
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#define PCE_ADDRESS_TYPE_IPV6 2
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u_int16_t reserved;
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struct in_addr value; /* PCE address */
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} address;
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};
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/* PCE Path-Scope Sub-TLV */ /* Mandatory */
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#define RI_PCE_SUBTLV_PATH_SCOPE 2
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struct ri_pce_subtlv_path_scope
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{
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struct ri_tlv_header header; /* Type = 2; Length = 4 bytes. */
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u_int32_t value; /* L, R, Rd, S, Sd, Y, PrefL, PrefR, PrefS and PrefY bits see RFC5088 page 9 */
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};
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/* PCE Domain Sub-TLV */ /* Optional */
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#define RI_PCE_SUBTLV_DOMAIN 3
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#define PCE_DOMAIN_TYPE_AREA 1
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#define PCE_DOMAIN_TYPE_AS 2
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struct ri_pce_subtlv_domain
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{
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struct ri_tlv_header header; /* Type = 3; Length = 8 bytes. */
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u_int16_t type; /* Domain type: 1 = OSPF Area ID, 2 = AS Number */
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u_int16_t reserved;
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u_int32_t value;
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};
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/* PCE Neighbor Sub-TLV */ /* Mandatory if R or S bit is set */
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#define RI_PCE_SUBTLV_NEIGHBOR 4
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struct ri_pce_subtlv_neighbor
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{
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struct ri_tlv_header header; /* Type = 4; Length = 8 bytes. */
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u_int16_t type; /* Domain type: 1 = OSPF Area ID, 2 = AS Number */
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u_int16_t reserved;
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u_int32_t value;
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};
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/* PCE Capabilities Flags Sub-TLV */ /* Optional */
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#define RI_PCE_SUBTLV_CAP_FLAG 5
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#define PCE_CAP_GMPLS_LINK 0x0001
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#define PCE_CAP_BIDIRECTIONAL 0x0002
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#define PCE_CAP_DIVERSE_PATH 0x0004
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#define PCE_CAP_LOAD_BALANCE 0x0008
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#define PCE_CAP_SYNCHRONIZED 0x0010
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#define PCE_CAP_OBJECTIVES 0x0020
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#define PCE_CAP_ADDITIVE 0x0040
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#define PCE_CAP_PRIORIZATION 0x0080
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#define PCE_CAP_MULTIPLE_REQ 0x0100
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struct ri_pce_subtlv_cap_flag
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{
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struct ri_tlv_header header; /* Type = 5; Length = n x 4 bytes. */
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u_int32_t value;
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};
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/* Prototypes. */
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extern int ospf_router_info_init (void);
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extern void ospf_router_info_term (void);
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#endif /* _ZEBRA_OSPF_ROUTER_INFO_H */
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