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      1  0  stevel /*
      2  0  stevel  * CDDL HEADER START
      3  0  stevel  *
      4  0  stevel  * The contents of this file are subject to the terms of the
      5  0  stevel  * Common Development and Distribution License, Version 1.0 only
      6  0  stevel  * (the "License").  You may not use this file except in compliance
      7  0  stevel  * with the License.
      8  0  stevel  *
      9  0  stevel  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  0  stevel  * or http://www.opensolaris.org/os/licensing.
     11  0  stevel  * See the License for the specific language governing permissions
     12  0  stevel  * and limitations under the License.
     13  0  stevel  *
     14  0  stevel  * When distributing Covered Code, include this CDDL HEADER in each
     15  0  stevel  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  0  stevel  * If applicable, add the following below this CDDL HEADER, with the
     17  0  stevel  * fields enclosed by brackets "[]" replaced with your own identifying
     18  0  stevel  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  0  stevel  *
     20  0  stevel  * CDDL HEADER END
     21  0  stevel  */
     22  0  stevel /*
     23  0  stevel  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
     24  0  stevel  * Use is subject to license terms.
     25  0  stevel  */
     26  0  stevel 
     27  0  stevel #ifndef _OSPF_H
     28  0  stevel #define	_OSPF_H
     29  0  stevel 
     30  0  stevel #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31  0  stevel 
     32  0  stevel /*
     33  0  stevel  * Definitions for parsing OSPF packets (RFC 2328 and RFC 2740)
     34  0  stevel  */
     35  0  stevel 
     36  0  stevel #ifdef __cplusplus
     37  0  stevel extern "C" {
     38  0  stevel #endif
     39  0  stevel 
     40  0  stevel #define	OSPF_TYPE_UMD	0	/* UMD's special monitoring packets */
     41  0  stevel #define	OSPF_TYPE_HELLO	1	/* Hello */
     42  0  stevel #define	OSPF_TYPE_DB	2	/* Database Description */
     43  0  stevel #define	OSPF_TYPE_LSR	3	/* Link State Request */
     44  0  stevel #define	OSPF_TYPE_LSU	4	/* Link State Update */
     45  0  stevel #define	OSPF_TYPE_LSA	5	/* Link State Ack */
     46  0  stevel #define	OSPF_TYPE_MAX	6
     47  0  stevel 
     48  0  stevel extern char *ospf_types[];
     49  0  stevel struct bits {
     50  0  stevel 	uint32_t bit;
     51  0  stevel 	const char *str;
     52  0  stevel };
     53  0  stevel char *ospf_print_bits(const struct bits *, uchar_t);
     54  0  stevel char *ospf_print_lsa_age(long);
     55  0  stevel 
     56  0  stevel /* Options *_options	*/
     57  0  stevel #define	OSPF_OPTION_T	0x01	/* RFC 2328 T bit: TOS support	*/
     58  0  stevel #define	OSPF_OPTION_E	0x02	/* E bit: External routes advertised	*/
     59  0  stevel #define	OSPF_OPTION_MC	0x04	/* MC bit: Multicast capable */
     60  0  stevel #define	OSPF_OPTION_N	0x08	/* N bit: For type-7 LSA */
     61  0  stevel #define	OSPF_OPTION_R	0x10	/* R bit: Router bit */
     62  0  stevel #define	OSPF_OPTION_DC	0x20	/* DC bit: Demand circuits */
     63  0  stevel 
     64  0  stevel #define	OSPF_OPTION_V6	0x01	/* RFC 2740 V6 bit */
     65  0  stevel 
     66  0  stevel /* ospf_authtype	*/
     67  0  stevel #define	OSPF_AUTH_NONE		0	/* No auth-data */
     68  0  stevel #define	OSPF_AUTH_SIMPLE	1	/* Simple password */
     69  0  stevel #define	OSPF_AUTH_MD5		2	/* MD5 authentication */
     70  0  stevel #define	OSPF_AUTH_MD5_LEN	16	/* length of MD5 authentication */
     71  0  stevel 
     72  0  stevel #define	OSPF_AUTH_TYPE_MAX	3
     73  0  stevel 
     74  0  stevel /* db_flags	*/
     75  0  stevel #define	OSPF_DB_INIT		0x04	/* "I"  */
     76  0  stevel #define	OSPF_DB_MORE		0x02 	/* "M"  */
     77  0  stevel #define	OSPF_DB_MASTER		0x01	/* "MS" */
     78  0  stevel 
     79  0  stevel 
     80  0  stevel /* ls_type	*/
     81  0  stevel #define	LS_TYPE_ROUTER		1   /* router link */
     82  0  stevel #define	LS_TYPE_NETWORK		2   /* network link */
     83  0  stevel #define	LS_TYPE_SUM_IP		3   /* summary link */
     84  0  stevel #define	LS_TYPE_SUM_ABR		4   /* summary area link */
     85  0  stevel #define	LS_TYPE_ASE		5   /* ASE  */
     86  0  stevel #define	LS_TYPE_GROUP		6   /* Group membership (multicast */
     87  0  stevel 				    /* extensions 23 July 1991) */
     88  0  stevel #define	LS_TYPE_TYPE7		7   /* Type 7 LSA */
     89  0  stevel #define	LS_TYPE_LINK		8   /* Link LSA */
     90  0  stevel #define	LS_TYPE_INTRA_AP	9   /* Intra-Area-Prefix */
     91  0  stevel #define	LS_TYPE_MAX		10
     92  0  stevel #define	LS_TYPE_MASK		0x1fff
     93  0  stevel 
     94  0  stevel #define	LS_TYPE_INTER_AP	3   /* RFC 2740 Inter-Area-Prefix */
     95  0  stevel #define	LS_TYPE_INTER_AR	4   /* RFC 2740 Inter-Area-Router */
     96  0  stevel 
     97  0  stevel #define	LS6_SCOPE_LINKLOCAL	0x0000
     98  0  stevel #define	LS6_SCOPE_AREA		0x2000
     99  0  stevel #define	LS6_SCOPE_AS		0x4000
    100  0  stevel #define	LS6_SCOPE_MASK		0x6000
    101  0  stevel 
    102  0  stevel /* rla_link.link_type	*/
    103  0  stevel #define	RLA_TYPE_ROUTER		1   /* point-to-point to another router	*/
    104  0  stevel #define	RLA_TYPE_TRANSIT	2   /* connection to transit network	*/
    105  0  stevel #define	RLA_TYPE_STUB		3   /* connection to stub network	*/
    106  0  stevel #define	RLA_TYPE_VIRTUAL	4   /* virtual link			*/
    107  0  stevel 
    108  0  stevel /* rla_flags	*/
    109  0  stevel #define	RLA_FLAG_B	0x01
    110  0  stevel #define	RLA_FLAG_E	0x02
    111  0  stevel #define	RLA_FLAG_V	0x04
    112  0  stevel #define	RLA_FLAG_W	0x08
    113  0  stevel 
    114  0  stevel 
    115  0  stevel /* sla_tosmetric breakdown	*/
    116  0  stevel #define	SLA_MASK_TOS		0x7f000000
    117  0  stevel #define	SLA_MASK_METRIC		0x00ffffff
    118  0  stevel #define	SLA_SHIFT_TOS		24
    119  0  stevel 
    120  0  stevel /* asla_tosmetric breakdown	*/
    121  0  stevel #define	ASLA_FLAG_EXTERNAL	0x80000000
    122  0  stevel #define	ASLA_MASK_TOS		0x7f000000
    123  0  stevel #define	ASLA_SHIFT_TOS		24
    124  0  stevel #define	ASLA_MASK_METRIC	0x00ffffff
    125  0  stevel 
    126  0  stevel /* multicast vertex type 	*/
    127  0  stevel #define	MCLA_VERTEX_ROUTER	1
    128  0  stevel #define	MCLA_VERTEX_NETWORK	2
    129  0  stevel 
    130  0  stevel /* link state advertisement header */
    131  0  stevel struct lsa_hdr {
    132  0  stevel 	ushort_t ls_age;
    133  0  stevel 	uchar_t ls_options;
    134  0  stevel 	uchar_t ls_type;
    135  0  stevel 	struct in_addr ls_stateid;
    136  0  stevel 	struct in_addr ls_router;
    137  0  stevel 	uint32_t ls_seq;
    138  0  stevel 	ushort_t ls_chksum;
    139  0  stevel 	ushort_t ls_length;
    140  0  stevel };
    141  0  stevel 
    142  0  stevel /* link state advertisement */
    143  0  stevel struct lsa {
    144  0  stevel 	struct lsa_hdr ls_hdr;
    145  0  stevel 
    146  0  stevel 	/* Link state types */
    147  0  stevel 	union {
    148  0  stevel 		/* Router links advertisements */
    149  0  stevel 		struct {
    150  0  stevel 			uchar_t rla_flags;
    151  0  stevel 			uchar_t rla_zero[1];
    152  0  stevel 			ushort_t rla_count;
    153  0  stevel 			struct rlalink {
    154  0  stevel 				struct in_addr link_id;
    155  0  stevel 				struct in_addr link_data;
    156  0  stevel 				uchar_t link_type;
    157  0  stevel 				uchar_t link_toscount;
    158  0  stevel 				ushort_t link_tos0metric;
    159  0  stevel 			} rla_link[1];		/* may repeat	*/
    160  0  stevel 		} un_rla;
    161  0  stevel 
    162  0  stevel 		/* Network links advertisements */
    163  0  stevel 		struct {
    164  0  stevel 			struct in_addr nla_mask;
    165  0  stevel 			struct in_addr nla_router[1];	/* may repeat	*/
    166  0  stevel 		} un_nla;
    167  0  stevel 
    168  0  stevel 		/* Summary links advertisements */
    169  0  stevel 		struct {
    170  0  stevel 			struct in_addr sla_mask;
    171  0  stevel 			uint32_t sla_tosmetric[1];	/* may repeat	*/
    172  0  stevel 		} un_sla;
    173  0  stevel 
    174  0  stevel 		/* AS external links advertisements */
    175  0  stevel 		struct {
    176  0  stevel 			struct in_addr asla_mask;
    177  0  stevel 			struct aslametric {
    178  0  stevel 				uint32_t asla_tosmetric;
    179  0  stevel 				struct in_addr asla_forward;
    180  0  stevel 				struct in_addr asla_tag;
    181  0  stevel 			} asla_metric[1];		/* may repeat	*/
    182  0  stevel 		} un_asla;
    183  0  stevel 
    184  0  stevel 		/* Multicast group membership */
    185  0  stevel 		struct mcla {
    186  0  stevel 			uint32_t mcla_vtype;
    187  0  stevel 			struct in_addr mcla_vid;
    188  0  stevel 		} un_mcla[1];
    189  0  stevel 	} lsa_un;
    190  0  stevel };
    191  0  stevel 
    192  0  stevel /*
    193  0  stevel  * TOS metric struct (will be 0 or more in router links update)
    194  0  stevel  */
    195  0  stevel struct tos_metric {
    196  0  stevel 	uchar_t tos_type;
    197  0  stevel 	uchar_t tos_zero;
    198  0  stevel 	ushort_t tos_metric;
    199  0  stevel };
    200  0  stevel 
    201  0  stevel /*
    202  0  stevel  * OSPF minimum header sizes
    203  0  stevel  */
    204  0  stevel #define	OSPF_AUTH_SIZE			8
    205  0  stevel #define	OSPF_MIN_HEADER_SIZE		24
    206  0  stevel #define	OSPF6_MIN_HEADER_SIZE		16
    207  0  stevel #define	OSPF_MIN_HELLO_HEADER_SIZE	20
    208  0  stevel #define	OSPF_MIN_DB_HEADER_SIZE		8
    209  0  stevel #define	OSPF6_MIN_DB_HEADER_SIZE	12
    210  0  stevel #define	OSPF_MIN_LSR_HEADER_SIZE	12
    211  0  stevel #define	OSPF_MIN_LSU_HEADER_SIZE	4
    212  0  stevel 
    213  0  stevel /*
    214  0  stevel  * ospf packet header
    215  0  stevel  */
    216  0  stevel struct ospfhdr {
    217  0  stevel 	uchar_t ospf_version;
    218  0  stevel 	uchar_t ospf_type;
    219  0  stevel 	ushort_t ospf_len;
    220  0  stevel 	struct in_addr ospf_routerid;
    221  0  stevel 	struct in_addr ospf_areaid;
    222  0  stevel 	ushort_t ospf_chksum;
    223  0  stevel 	ushort_t ospf_authtype;
    224  0  stevel 	uchar_t ospf_authdata[OSPF_AUTH_SIZE];
    225  0  stevel 	union {
    226  0  stevel 
    227  0  stevel 		/* Hello packet */
    228  0  stevel 		struct {
    229  0  stevel 			struct in_addr hello_mask;
    230  0  stevel 			ushort_t hello_helloint;
    231  0  stevel 			uchar_t hello_options;
    232  0  stevel 			uchar_t hello_priority;
    233  0  stevel 			uint32_t hello_deadint;
    234  0  stevel 			struct in_addr hello_dr;
    235  0  stevel 			struct in_addr hello_bdr;
    236  0  stevel 			struct in_addr hello_neighbor[1]; /* may repeat	*/
    237  0  stevel 		} un_hello;
    238  0  stevel 
    239  0  stevel 		/* Database Description packet */
    240  0  stevel 		struct {
    241  0  stevel 			uchar_t db_zero[2];
    242  0  stevel 			uchar_t db_options;
    243  0  stevel 			uchar_t db_flags;
    244  0  stevel 			uint32_t db_seq;
    245  0  stevel 			struct lsa_hdr db_lshdr[1];	/* may repeat */
    246  0  stevel 		} un_db;
    247  0  stevel 
    248  0  stevel 		/* Link State Request */
    249  0  stevel 		struct lsr {
    250  0  stevel 			uint32_t ls_type;
    251  0  stevel 			struct in_addr ls_stateid;
    252  0  stevel 			struct in_addr ls_router;
    253  0  stevel 		} un_lsr[1];				/* may repeat */
    254  0  stevel 
    255  0  stevel 		/* Link State Update */
    256  0  stevel 		struct {
    257  0  stevel 			uint32_t lsu_count;
    258  0  stevel 			struct lsa lsu_lsa[1]; 		/* may repeat */
    259  0  stevel 		} un_lsu;
    260  0  stevel 
    261  0  stevel 		/* Link State Acknowledgement */
    262  0  stevel 		struct {
    263  0  stevel 			struct lsa_hdr lsa_lshdr[1]; 	/* may repeat */
    264  0  stevel 		} un_lsa;
    265  0  stevel 	} ospf_un;
    266  0  stevel };
    267  0  stevel 
    268  0  stevel #define	ospf_hello	ospf_un.un_hello
    269  0  stevel #define	ospf_db		ospf_un.un_db
    270  0  stevel #define	ospf_lsr	ospf_un.un_lsr
    271  0  stevel #define	ospf_lsu	ospf_un.un_lsu
    272  0  stevel #define	ospf_lsa	ospf_un.un_lsa
    273  0  stevel 
    274  0  stevel 
    275  0  stevel 
    276  0  stevel #ifdef __cplusplus
    277  0  stevel }
    278  0  stevel #endif
    279  0  stevel 
    280  0  stevel #endif /* _OSPF_H */
    281