ospf6.h - platform/external/tcpdump - Git at Google

 /* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.6 2002/12/11 07:13:56 guy Exp $ (LBL) */
 /*
  * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
  *	The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that: (1) source code distributions
  * retain the above copyright notice and this paragraph in its entirety, (2)
  * distributions including binary code include the above copyright notice and
  * this paragraph in its entirety in the documentation or other materials
  * provided with the distribution, and (3) all advertising materials mentioning
  * features or use of this software display the following acknowledgement:
  * ``This product includes software developed by the University of California,
  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  * the University nor the names of its contributors may be used to endorse
  * or promote products derived from this software without specific prior
  * written permission.
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
  */
 #define	OSPF_TYPE_UMD	0	/* UMd's special monitoring packets */
 #define	OSPF_TYPE_HELLO	1	/* Hello */
 #define	OSPF_TYPE_DB	2	/* Database Description */
 #define	OSPF_TYPE_LSR	3	/* Link State Request */
 #define	OSPF_TYPE_LSU	4	/* Link State Update */
 #define	OSPF_TYPE_LSA	5	/* Link State Ack */
 #define	OSPF_TYPE_MAX	6

 /* Options *_options	*/
 #define OSPF6_OPTION_V6	0x01	/* V6 bit: A bit for peeping tom */
 #define OSPF6_OPTION_E	0x02	/* E bit: External routes advertised	*/
 #define OSPF6_OPTION_MC	0x04	/* MC bit: Multicast capable */
 #define OSPF6_OPTION_N	0x08	/* N bit: For type-7 LSA */
 #define OSPF6_OPTION_R	0x10	/* R bit: Router bit */
 #define OSPF6_OPTION_DC	0x20	/* DC bit: Demand circuits */


 /* db_flags	*/
 #define	OSPF6_DB_INIT		0x04	    /*	*/
 #define	OSPF6_DB_MORE		0x02
 #define	OSPF6_DB_MASTER		0x01

 /* ls_type	*/
 #define	LS_TYPE_ROUTER		1   /* router link */
 #define	LS_TYPE_NETWORK		2   /* network link */
 #define	LS_TYPE_INTER_AP	3   /* Inter-Area-Prefix */
 #define	LS_TYPE_INTER_AR	4   /* Inter-Area-Router */
 #define	LS_TYPE_ASE		5   /* ASE */
 #define	LS_TYPE_GROUP		6   /* Group membership */
 #define	LS_TYPE_TYPE7		7   /* Type 7 LSA */
 #define	LS_TYPE_LINK		8   /* Link LSA */
 #define	LS_TYPE_INTRA_AP	9   /* Intra-Area-Prefix */
 #define	LS_TYPE_MAX		10
 #define LS_TYPE_MASK		0x1fff

 #define LS_SCOPE_LINKLOCAL	0x0000
 #define LS_SCOPE_AREA		0x2000
 #define LS_SCOPE_AS		0x4000
 #define LS_SCOPE_MASK		0x6000

 /*************************************************
  *
  * is the above a bug in the documentation?
  *
  *************************************************/


 /* rla_link.link_type	*/
 #define	RLA_TYPE_ROUTER		1   /* point-to-point to another router	*/
 #define	RLA_TYPE_TRANSIT	2   /* connection to transit network	*/
 #define RLA_TYPE_VIRTUAL	4   /* virtual link			*/

 /* rla_flags	*/
 #define	RLA_FLAG_B	0x01
 #define	RLA_FLAG_E	0x02
 #define	RLA_FLAG_V	0x04
 #define	RLA_FLAG_W	0x08

 /* sla_tosmetric breakdown	*/
 #define	SLA_MASK_TOS		0x7f000000
 #define	SLA_MASK_METRIC		0x00ffffff
 #define SLA_SHIFT_TOS		24

 /* asla_metric */
 #define ASLA_FLAG_EXTERNAL	0x04000000
 #define ASLA_FLAG_FWDADDR	0x02000000
 #define ASLA_FLAG_ROUTETAG	0x01000000
 #define	ASLA_MASK_METRIC	0x00ffffff

 /* multicast vertex type */
 #define	MCLA_VERTEX_ROUTER	1
 #define	MCLA_VERTEX_NETWORK	2

 typedef u_int32_t rtrid_t;

 /* link state advertisement header */
 struct lsa_hdr {
     u_int16_t ls_age;
     u_int16_t ls_type;
     rtrid_t ls_stateid;
     rtrid_t ls_router;
     u_int32_t ls_seq;
     u_int16_t ls_chksum;
     u_int16_t ls_length;
 };

 struct lsa_prefix {
     u_int8_t lsa_p_len;
     u_int8_t lsa_p_opt;
     u_int16_t lsa_p_mbz;
     u_int8_t lsa_p_prefix[4];
 };

 /* link state advertisement */
 struct lsa {
     struct lsa_hdr ls_hdr;

     /* Link state types */
     union {
 	/* Router links advertisements */
 	struct {
 	    union {
 		u_int8_t flg;
 		u_int32_t opt;
 	    } rla_flgandopt;
 #define rla_flags	rla_flgandopt.flg
 #define rla_options	rla_flgandopt.opt
 	    struct rlalink {
 		u_int8_t link_type;
 		u_int8_t link_zero[1];
 		u_int16_t link_metric;
 		u_int32_t link_ifid;
 		u_int32_t link_nifid;
 		rtrid_t link_nrtid;
 	    } rla_link[1];		/* may repeat	*/
 	} un_rla;

 	/* Network links advertisements */
 	struct {
 	    u_int32_t nla_options;
 	    rtrid_t nla_router[1];	/* may repeat	*/
 	} un_nla;

 	/* Inter Area Prefix LSA */
 	struct {
 	    u_int32_t inter_ap_metric;
 	    struct lsa_prefix inter_ap_prefix[1];
 	} un_inter_ap;

 	/* AS external links advertisements */
 	struct {
 	    u_int32_t asla_metric;
 	    struct lsa_prefix asla_prefix[1];
 	    /* some optional fields follow */
 	} un_asla;

 #if 0
 	/* Summary links advertisements */
 	struct {
 	    struct in_addr sla_mask;
 	    u_int32_t sla_tosmetric[1];	/* may repeat	*/
 	} un_sla;

 	/* Multicast group membership */
 	struct mcla {
 	    u_int32_t mcla_vtype;
 	    struct in_addr mcla_vid;
 	} un_mcla[1];
 #endif

 	/* Type 7 LSA */

 	/* Link LSA */
 	struct llsa {
 	    union {
 		u_int8_t pri;
 		u_int32_t opt;
 	    } llsa_priandopt;
 #define llsa_priority	llsa_priandopt.pri
 #define llsa_options	llsa_priandopt.opt
 	    struct in6_addr llsa_lladdr;
 	    u_int32_t llsa_nprefix;
 	    struct lsa_prefix llsa_prefix[1];
 	} un_llsa;

 	/* Intra-Area-Prefix */
 	struct {
 	    u_int16_t intra_ap_nprefix;
 	    u_int16_t intra_ap_lstype;
 	    rtrid_t intra_ap_lsid;
 	    rtrid_t intra_ap_rtid;
 	    struct lsa_prefix intra_ap_prefix[1];
 	} un_intra_ap;
     } lsa_un;
 };


 /*
  * TOS metric struct (will be 0 or more in router links update)
  */
 struct tos_metric {
     u_int8_t tos_type;
     u_int8_t tos_zero;
     u_int16_t tos_metric;
 };

 #define	OSPF_AUTH_SIZE	8

 /*
  * the main header
  */
 struct ospf6hdr {
     u_int8_t ospf6_version;
     u_int8_t ospf6_type;
     u_int16_t ospf6_len;
     rtrid_t ospf6_routerid;
     rtrid_t ospf6_areaid;
     u_int16_t ospf6_chksum;
     u_int8_t ospf6_instanceid;
     u_int8_t ospf6_rsvd;
     union {

 	/* Hello packet */
 	struct {
 	    u_int32_t hello_ifid;
 	    union {
 		u_int8_t pri;
 		u_int32_t opt;
 	    } hello_priandopt;
 #define hello_priority	hello_priandopt.pri
 #define hello_options	hello_priandopt.opt
 	    u_int16_t hello_helloint;
 	    u_int16_t hello_deadint;
 	    rtrid_t hello_dr;
 	    rtrid_t hello_bdr;
 	    rtrid_t hello_neighbor[1]; /* may repeat	*/
 	} un_hello;

 	/* Database Description packet */
 	struct {
 	    u_int32_t db_options;
 	    u_int16_t db_mtu;
 	    u_int8_t db_mbz;
 	    u_int8_t db_flags;
 	    u_int32_t db_seq;
 	    struct lsa_hdr db_lshdr[1]; /* may repeat	*/
 	} un_db;

 	/* Link State Request */
 	struct lsr {
 	    u_int16_t ls_mbz;
 	    u_int16_t ls_type;
 	    rtrid_t ls_stateid;
 	    rtrid_t ls_router;
 	} un_lsr[1];		/* may repeat	*/

 	/* Link State Update */
 	struct {
 	    u_int32_t lsu_count;
 	    struct lsa lsu_lsa[1]; /* may repeat	*/
 	} un_lsu;

 	/* Link State Acknowledgement */
 	struct {
 	    struct lsa_hdr lsa_lshdr[1]; /* may repeat	*/
 	} un_lsa ;
     } ospf6_un ;
 };

 #define	ospf6_hello	ospf6_un.un_hello
 #define	ospf6_db	ospf6_un.un_db
 #define	ospf6_lsr	ospf6_un.un_lsr
 #define	ospf6_lsu	ospf6_un.un_lsu
 #define	ospf6_lsa	ospf6_un.un_lsa
	/* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.6 2002/12/11 07:13:56 guy Exp $ (LBL) */
	/*
	* Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
	* The Regents of the University of California. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that: (1) source code distributions
	* retain the above copyright notice and this paragraph in its entirety, (2)
	* distributions including binary code include the above copyright notice and
	* this paragraph in its entirety in the documentation or other materials
	* provided with the distribution, and (3) all advertising materials mentioning
	* features or use of this software display the following acknowledgement:
	* ``This product includes software developed by the University of California,
	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
	* the University nor the names of its contributors may be used to endorse
	* or promote products derived from this software without specific prior
	* written permission.
	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	*
	* OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
	*/
	#define OSPF_TYPE_UMD 0 /* UMd's special monitoring packets */
	#define OSPF_TYPE_HELLO 1 /* Hello */
	#define OSPF_TYPE_DB 2 /* Database Description */
	#define OSPF_TYPE_LSR 3 /* Link State Request */
	#define OSPF_TYPE_LSU 4 /* Link State Update */
	#define OSPF_TYPE_LSA 5 /* Link State Ack */
	#define OSPF_TYPE_MAX 6

	/* Options _options /
	#define OSPF6_OPTION_V6 0x01 /* V6 bit: A bit for peeping tom */
	#define OSPF6_OPTION_E 0x02 /* E bit: External routes advertised */
	#define OSPF6_OPTION_MC 0x04 /* MC bit: Multicast capable */
	#define OSPF6_OPTION_N 0x08 /* N bit: For type-7 LSA */
	#define OSPF6_OPTION_R 0x10 /* R bit: Router bit */
	#define OSPF6_OPTION_DC 0x20 /* DC bit: Demand circuits */


	/* db_flags */
	#define OSPF6_DB_INIT 0x04 /* */
	#define OSPF6_DB_MORE 0x02
	#define OSPF6_DB_MASTER 0x01

	/* ls_type */
	#define LS_TYPE_ROUTER 1 /* router link */
	#define LS_TYPE_NETWORK 2 /* network link */
	#define LS_TYPE_INTER_AP 3 /* Inter-Area-Prefix */
	#define LS_TYPE_INTER_AR 4 /* Inter-Area-Router */
	#define LS_TYPE_ASE 5 /* ASE */
	#define LS_TYPE_GROUP 6 /* Group membership */
	#define LS_TYPE_TYPE7 7 /* Type 7 LSA */
	#define LS_TYPE_LINK 8 /* Link LSA */
	#define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */
	#define LS_TYPE_MAX 10
	#define LS_TYPE_MASK 0x1fff

	#define LS_SCOPE_LINKLOCAL 0x0000
	#define LS_SCOPE_AREA 0x2000
	#define LS_SCOPE_AS 0x4000
	#define LS_SCOPE_MASK 0x6000

	/*************************************************
	*
	* is the above a bug in the documentation?
	*
	*************************************************/


	/* rla_link.link_type */
	#define RLA_TYPE_ROUTER 1 /* point-to-point to another router */
	#define RLA_TYPE_TRANSIT 2 /* connection to transit network */
	#define RLA_TYPE_VIRTUAL 4 /* virtual link */

	/* rla_flags */
	#define RLA_FLAG_B 0x01
	#define RLA_FLAG_E 0x02
	#define RLA_FLAG_V 0x04
	#define RLA_FLAG_W 0x08

	/* sla_tosmetric breakdown */
	#define SLA_MASK_TOS 0x7f000000
	#define SLA_MASK_METRIC 0x00ffffff
	#define SLA_SHIFT_TOS 24

	/* asla_metric */
	#define ASLA_FLAG_EXTERNAL 0x04000000
	#define ASLA_FLAG_FWDADDR 0x02000000
	#define ASLA_FLAG_ROUTETAG 0x01000000
	#define ASLA_MASK_METRIC 0x00ffffff

	/* multicast vertex type */
	#define MCLA_VERTEX_ROUTER 1
	#define MCLA_VERTEX_NETWORK 2

	typedef u_int32_t rtrid_t;

	/* link state advertisement header */
	struct lsa_hdr {
	u_int16_t ls_age;
	u_int16_t ls_type;
	rtrid_t ls_stateid;
	rtrid_t ls_router;
	u_int32_t ls_seq;
	u_int16_t ls_chksum;
	u_int16_t ls_length;
	};

	struct lsa_prefix {
	u_int8_t lsa_p_len;
	u_int8_t lsa_p_opt;
	u_int16_t lsa_p_mbz;
	u_int8_t lsa_p_prefix[4];
	};

	/* link state advertisement */
	struct lsa {
	struct lsa_hdr ls_hdr;

	/* Link state types */
	union {
	/* Router links advertisements */
	struct {
	union {
	u_int8_t flg;
	u_int32_t opt;
	} rla_flgandopt;
	#define rla_flags rla_flgandopt.flg
	#define rla_options rla_flgandopt.opt
	struct rlalink {
	u_int8_t link_type;
	u_int8_t link_zero[1];
	u_int16_t link_metric;
	u_int32_t link_ifid;
	u_int32_t link_nifid;
	rtrid_t link_nrtid;
	} rla_link[1]; /* may repeat */
	} un_rla;

	/* Network links advertisements */
	struct {
	u_int32_t nla_options;
	rtrid_t nla_router[1]; /* may repeat */
	} un_nla;

	/* Inter Area Prefix LSA */
	struct {
	u_int32_t inter_ap_metric;
	struct lsa_prefix inter_ap_prefix[1];
	} un_inter_ap;

	/* AS external links advertisements */
	struct {
	u_int32_t asla_metric;
	struct lsa_prefix asla_prefix[1];
	/* some optional fields follow */
	} un_asla;

	#if 0
	/* Summary links advertisements */
	struct {
	struct in_addr sla_mask;
	u_int32_t sla_tosmetric[1]; /* may repeat */
	} un_sla;

	/* Multicast group membership */
	struct mcla {
	u_int32_t mcla_vtype;
	struct in_addr mcla_vid;
	} un_mcla[1];
	#endif

	/* Type 7 LSA */

	/* Link LSA */
	struct llsa {
	union {
	u_int8_t pri;
	u_int32_t opt;
	} llsa_priandopt;
	#define llsa_priority llsa_priandopt.pri
	#define llsa_options llsa_priandopt.opt
	struct in6_addr llsa_lladdr;
	u_int32_t llsa_nprefix;
	struct lsa_prefix llsa_prefix[1];
	} un_llsa;

	/* Intra-Area-Prefix */
	struct {
	u_int16_t intra_ap_nprefix;
	u_int16_t intra_ap_lstype;
	rtrid_t intra_ap_lsid;
	rtrid_t intra_ap_rtid;
	struct lsa_prefix intra_ap_prefix[1];
	} un_intra_ap;
	} lsa_un;
	};


	/*
	* TOS metric struct (will be 0 or more in router links update)
	*/
	struct tos_metric {
	u_int8_t tos_type;
	u_int8_t tos_zero;
	u_int16_t tos_metric;
	};

	#define OSPF_AUTH_SIZE 8

	/*
	* the main header
	*/
	struct ospf6hdr {
	u_int8_t ospf6_version;
	u_int8_t ospf6_type;
	u_int16_t ospf6_len;
	rtrid_t ospf6_routerid;
	rtrid_t ospf6_areaid;
	u_int16_t ospf6_chksum;
	u_int8_t ospf6_instanceid;
	u_int8_t ospf6_rsvd;
	union {

	/* Hello packet */
	struct {
	u_int32_t hello_ifid;
	union {
	u_int8_t pri;
	u_int32_t opt;
	} hello_priandopt;
	#define hello_priority hello_priandopt.pri
	#define hello_options hello_priandopt.opt
	u_int16_t hello_helloint;
	u_int16_t hello_deadint;
	rtrid_t hello_dr;
	rtrid_t hello_bdr;
	rtrid_t hello_neighbor[1]; /* may repeat */
	} un_hello;

	/* Database Description packet */
	struct {
	u_int32_t db_options;
	u_int16_t db_mtu;
	u_int8_t db_mbz;
	u_int8_t db_flags;
	u_int32_t db_seq;
	struct lsa_hdr db_lshdr[1]; /* may repeat */
	} un_db;

	/* Link State Request */
	struct lsr {
	u_int16_t ls_mbz;
	u_int16_t ls_type;
	rtrid_t ls_stateid;
	rtrid_t ls_router;
	} un_lsr[1]; /* may repeat */

	/* Link State Update */
	struct {
	u_int32_t lsu_count;
	struct lsa lsu_lsa[1]; /* may repeat */
	} un_lsu;

	/* Link State Acknowledgement */
	struct {
	struct lsa_hdr lsa_lshdr[1]; /* may repeat */
	} un_lsa ;
	} ospf6_un ;
	};

	#define ospf6_hello ospf6_un.un_hello
	#define ospf6_db ospf6_un.un_db
	#define ospf6_lsr ospf6_un.un_lsr
	#define ospf6_lsu ospf6_un.un_lsu
	#define ospf6_lsa ospf6_un.un_lsa