ospf6_proto.h
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上传日期:2009-11-15
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- /*
- * Common protocol data and data structures.
- * Copyright (C) 2003 Yasuhiro Ohara
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * GNU Zebra is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Zebra; see the file COPYING. If not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
- #ifndef OSPF6_PROTO_H
- #define OSPF6_PROTO_H
- /* OSPF protocol version */
- #define OSPFV3_VERSION 3
- /* OSPF protocol number. */
- #ifndef IPPROTO_OSPFIGP
- #define IPPROTO_OSPFIGP 89
- #endif
- /* TOS field normaly null */
- #define DEFAULT_TOS_VALUE 0x0
- /* Architectural Constants */
- #define LS_REFRESH_TIME 1800 /* 30 min */
- #define MIN_LS_INTERVAL 5
- #define MIN_LS_ARRIVAL 1
- #define MAXAGE 3600 /* 1 hour */
- #define CHECK_AGE 300 /* 5 min */
- #define MAX_AGE_DIFF 900 /* 15 min */
- #define LS_INFINITY 0xffffff /* 24-bit binary value */
- #define INITIAL_SEQUENCE_NUMBER 0x80000001 /* signed 32-bit integer */
- #define MAX_SEQUENCE_NUMBER 0x7fffffff /* signed 32-bit integer */
- #define ALLSPFROUTERS6 "ff02::5"
- #define ALLDROUTERS6 "ff02::6"
- /* Configurable Constants */
- #define DEFAULT_HELLO_INTERVAL 10
- #define DEFAULT_ROUTER_DEAD_INTERVAL 40
- #define OSPF6_ROUTER_BIT_W (1 << 3)
- #define OSPF6_ROUTER_BIT_V (1 << 2)
- #define OSPF6_ROUTER_BIT_E (1 << 1)
- #define OSPF6_ROUTER_BIT_B (1 << 0)
- /* OSPF options */
- /* present in HELLO, DD, LSA */
- #define OSPF6_OPT_SET(x,opt) ((x)[2] |= (opt))
- #define OSPF6_OPT_ISSET(x,opt) ((x)[2] & (opt))
- #define OSPF6_OPT_CLEAR(x,opt) ((x)[2] &= ~(opt))
- #define OSPF6_OPT_CLEAR_ALL(x) ((x)[0] = (x)[1] = (x)[2] = 0)
- #define OSPF6_OPT_DC (1 << 5) /* Demand Circuit handling Capability */
- #define OSPF6_OPT_R (1 << 4) /* Forwarding Capability (Any Protocol) */
- #define OSPF6_OPT_N (1 << 3) /* Handling Type-7 LSA Capability */
- #define OSPF6_OPT_MC (1 << 2) /* Multicasting Capability */
- #define OSPF6_OPT_E (1 << 1) /* AS External Capability */
- #define OSPF6_OPT_V6 (1 << 0) /* IPv6 forwarding Capability */
- /* OSPF6 Prefix */
- struct ospf6_prefix
- {
- u_int8_t prefix_length;
- u_int8_t prefix_options;
- union {
- u_int16_t _prefix_metric;
- u_int16_t _prefix_referenced_lstype;
- } u;
- #define prefix_metric u._prefix_metric
- #define prefix_refer_lstype u._prefix_referenced_lstype
- /* followed by one address_prefix */
- };
- #define OSPF6_PREFIX_OPTION_NU (1 << 0) /* No Unicast */
- #define OSPF6_PREFIX_OPTION_LA (1 << 1) /* Local Address */
- #define OSPF6_PREFIX_OPTION_MC (1 << 2) /* MultiCast */
- #define OSPF6_PREFIX_OPTION_P (1 << 3) /* Propagate (NSSA) */
- /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */
- #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof (struct ospf6_prefix))
- /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */
- #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4)
- /* size_t OSPF6_PREFIX_SIZE (struct ospf6_prefix *); */
- #define OSPF6_PREFIX_SIZE(x)
- (OSPF6_PREFIX_SPACE ((x)->prefix_length) + sizeof (struct ospf6_prefix))
- /* struct ospf6_prefix *OSPF6_PREFIX_NEXT (struct ospf6_prefix *); */
- #define OSPF6_PREFIX_NEXT(x)
- ((struct ospf6_prefix *)((caddr_t)(x) + OSPF6_PREFIX_SIZE (x)))
- #define ospf6_prefix_in6_addr(in6, op)
- do {
- memset (in6, 0, sizeof (struct in6_addr));
- memcpy (in6, (caddr_t) (op) + sizeof (struct ospf6_prefix),
- OSPF6_PREFIX_SPACE ((op)->prefix_length));
- } while (0)
- void ospf6_prefix_apply_mask (struct ospf6_prefix *op);
- void ospf6_prefix_options_printbuf (u_int8_t prefix_options,
- char *buf, int size);
- void ospf6_capability_printbuf (char capability, char *buf, int size);
- void ospf6_options_printbuf (u_char *options, char *buf, int size);
- #endif /* OSPF6_PROTO_H */