diff options
Diffstat (limited to 'usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_ospf.h')
| -rw-r--r-- | usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_ospf.h | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_ospf.h b/usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_ospf.h new file mode 100644 index 0000000..8bf4d3d --- /dev/null +++ b/usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_ospf.h @@ -0,0 +1,280 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _OSPF_H +#define _OSPF_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * Definitions for parsing OSPF packets (RFC 2328 and RFC 2740) + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#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 + +extern char *ospf_types[]; +struct bits { + uint32_t bit; + const char *str; +}; +char *ospf_print_bits(const struct bits *, uchar_t); +char *ospf_print_lsa_age(long); + +/* Options *_options */ +#define OSPF_OPTION_T 0x01 /* RFC 2328 T bit: TOS support */ +#define OSPF_OPTION_E 0x02 /* E bit: External routes advertised */ +#define OSPF_OPTION_MC 0x04 /* MC bit: Multicast capable */ +#define OSPF_OPTION_N 0x08 /* N bit: For type-7 LSA */ +#define OSPF_OPTION_R 0x10 /* R bit: Router bit */ +#define OSPF_OPTION_DC 0x20 /* DC bit: Demand circuits */ + +#define OSPF_OPTION_V6 0x01 /* RFC 2740 V6 bit */ + +/* ospf_authtype */ +#define OSPF_AUTH_NONE 0 /* No auth-data */ +#define OSPF_AUTH_SIMPLE 1 /* Simple password */ +#define OSPF_AUTH_MD5 2 /* MD5 authentication */ +#define OSPF_AUTH_MD5_LEN 16 /* length of MD5 authentication */ + +#define OSPF_AUTH_TYPE_MAX 3 + +/* db_flags */ +#define OSPF_DB_INIT 0x04 /* "I" */ +#define OSPF_DB_MORE 0x02 /* "M" */ +#define OSPF_DB_MASTER 0x01 /* "MS" */ + + +/* ls_type */ +#define LS_TYPE_ROUTER 1 /* router link */ +#define LS_TYPE_NETWORK 2 /* network link */ +#define LS_TYPE_SUM_IP 3 /* summary link */ +#define LS_TYPE_SUM_ABR 4 /* summary area link */ +#define LS_TYPE_ASE 5 /* ASE */ +#define LS_TYPE_GROUP 6 /* Group membership (multicast */ + /* extensions 23 July 1991) */ +#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_TYPE_INTER_AP 3 /* RFC 2740 Inter-Area-Prefix */ +#define LS_TYPE_INTER_AR 4 /* RFC 2740 Inter-Area-Router */ + +#define LS6_SCOPE_LINKLOCAL 0x0000 +#define LS6_SCOPE_AREA 0x2000 +#define LS6_SCOPE_AS 0x4000 +#define LS6_SCOPE_MASK 0x6000 + +/* 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_STUB 3 /* connection to stub 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_tosmetric breakdown */ +#define ASLA_FLAG_EXTERNAL 0x80000000 +#define ASLA_MASK_TOS 0x7f000000 +#define ASLA_SHIFT_TOS 24 +#define ASLA_MASK_METRIC 0x00ffffff + +/* multicast vertex type */ +#define MCLA_VERTEX_ROUTER 1 +#define MCLA_VERTEX_NETWORK 2 + +/* link state advertisement header */ +struct lsa_hdr { + ushort_t ls_age; + uchar_t ls_options; + uchar_t ls_type; + struct in_addr ls_stateid; + struct in_addr ls_router; + uint32_t ls_seq; + ushort_t ls_chksum; + ushort_t ls_length; +}; + +/* link state advertisement */ +struct lsa { + struct lsa_hdr ls_hdr; + + /* Link state types */ + union { + /* Router links advertisements */ + struct { + uchar_t rla_flags; + uchar_t rla_zero[1]; + ushort_t rla_count; + struct rlalink { + struct in_addr link_id; + struct in_addr link_data; + uchar_t link_type; + uchar_t link_toscount; + ushort_t link_tos0metric; + } rla_link[1]; /* may repeat */ + } un_rla; + + /* Network links advertisements */ + struct { + struct in_addr nla_mask; + struct in_addr nla_router[1]; /* may repeat */ + } un_nla; + + /* Summary links advertisements */ + struct { + struct in_addr sla_mask; + uint32_t sla_tosmetric[1]; /* may repeat */ + } un_sla; + + /* AS external links advertisements */ + struct { + struct in_addr asla_mask; + struct aslametric { + uint32_t asla_tosmetric; + struct in_addr asla_forward; + struct in_addr asla_tag; + } asla_metric[1]; /* may repeat */ + } un_asla; + + /* Multicast group membership */ + struct mcla { + uint32_t mcla_vtype; + struct in_addr mcla_vid; + } un_mcla[1]; + } lsa_un; +}; + +/* + * TOS metric struct (will be 0 or more in router links update) + */ +struct tos_metric { + uchar_t tos_type; + uchar_t tos_zero; + ushort_t tos_metric; +}; + +/* + * OSPF minimum header sizes + */ +#define OSPF_AUTH_SIZE 8 +#define OSPF_MIN_HEADER_SIZE 24 +#define OSPF6_MIN_HEADER_SIZE 16 +#define OSPF_MIN_HELLO_HEADER_SIZE 20 +#define OSPF_MIN_DB_HEADER_SIZE 8 +#define OSPF6_MIN_DB_HEADER_SIZE 12 +#define OSPF_MIN_LSR_HEADER_SIZE 12 +#define OSPF_MIN_LSU_HEADER_SIZE 4 + +/* + * ospf packet header + */ +struct ospfhdr { + uchar_t ospf_version; + uchar_t ospf_type; + ushort_t ospf_len; + struct in_addr ospf_routerid; + struct in_addr ospf_areaid; + ushort_t ospf_chksum; + ushort_t ospf_authtype; + uchar_t ospf_authdata[OSPF_AUTH_SIZE]; + union { + + /* Hello packet */ + struct { + struct in_addr hello_mask; + ushort_t hello_helloint; + uchar_t hello_options; + uchar_t hello_priority; + uint32_t hello_deadint; + struct in_addr hello_dr; + struct in_addr hello_bdr; + struct in_addr hello_neighbor[1]; /* may repeat */ + } un_hello; + + /* Database Description packet */ + struct { + uchar_t db_zero[2]; + uchar_t db_options; + uchar_t db_flags; + uint32_t db_seq; + struct lsa_hdr db_lshdr[1]; /* may repeat */ + } un_db; + + /* Link State Request */ + struct lsr { + uint32_t ls_type; + struct in_addr ls_stateid; + struct in_addr ls_router; + } un_lsr[1]; /* may repeat */ + + /* Link State Update */ + struct { + uint32_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; + } ospf_un; +}; + +#define ospf_hello ospf_un.un_hello +#define ospf_db ospf_un.un_db +#define ospf_lsr ospf_un.un_lsr +#define ospf_lsu ospf_un.un_lsu +#define ospf_lsa ospf_un.un_lsa + + + +#ifdef __cplusplus +} +#endif + +#endif /* _OSPF_H */ |