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Annotation of embedaddon/quagga/ospf6d/ospf6_proto.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Common protocol data and data structures.
        !             3:  * Copyright (C) 2003 Yasuhiro Ohara
        !             4:  *
        !             5:  * This file is part of GNU Zebra.
        !             6:  *
        !             7:  * GNU Zebra is free software; you can redistribute it and/or modify it
        !             8:  * under the terms of the GNU General Public License as published by the
        !             9:  * Free Software Foundation; either version 2, or (at your option) any
        !            10:  * later version.
        !            11:  *
        !            12:  * GNU Zebra is distributed in the hope that it will be useful, but
        !            13:  * WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            15:  * General Public License for more details.
        !            16:  *
        !            17:  * You should have received a copy of the GNU General Public License
        !            18:  * along with GNU Zebra; see the file COPYING.  If not, write to the 
        !            19:  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
        !            20:  * Boston, MA 02111-1307, USA.  
        !            21:  */
        !            22: 
        !            23: #ifndef OSPF6_PROTO_H
        !            24: #define OSPF6_PROTO_H
        !            25: 
        !            26: /* OSPF protocol version */
        !            27: #define OSPFV3_VERSION           3
        !            28: 
        !            29: /* OSPF protocol number. */
        !            30: #ifndef IPPROTO_OSPFIGP
        !            31: #define IPPROTO_OSPFIGP         89
        !            32: #endif
        !            33: 
        !            34: /* TOS field normaly null */
        !            35: #define DEFAULT_TOS_VALUE      0x0
        !            36: 
        !            37: /* Architectural Constants */
        !            38: #define LS_REFRESH_TIME                1800  /* 30 min */
        !            39: #define MIN_LS_INTERVAL                   5
        !            40: #define MIN_LS_ARRIVAL                    1
        !            41: #define MAXAGE                         3600  /* 1 hour */
        !            42: #define CHECK_AGE                       300  /* 5 min */
        !            43: #define MAX_AGE_DIFF                    900  /* 15 min */
        !            44: #define LS_INFINITY                0xffffff  /* 24-bit binary value */
        !            45: #define INITIAL_SEQUENCE_NUMBER  0x80000001  /* signed 32-bit integer */
        !            46: #define MAX_SEQUENCE_NUMBER      0x7fffffff  /* signed 32-bit integer */
        !            47: 
        !            48: #define ALLSPFROUTERS6 "ff02::5"
        !            49: #define ALLDROUTERS6   "ff02::6"
        !            50: 
        !            51: /* Configurable Constants */
        !            52: 
        !            53: #define DEFAULT_HELLO_INTERVAL       10
        !            54: #define DEFAULT_ROUTER_DEAD_INTERVAL 40
        !            55: 
        !            56: #define OSPF6_ROUTER_BIT_W     (1 << 3)
        !            57: #define OSPF6_ROUTER_BIT_V     (1 << 2)
        !            58: #define OSPF6_ROUTER_BIT_E     (1 << 1)
        !            59: #define OSPF6_ROUTER_BIT_B     (1 << 0)
        !            60: 
        !            61: /* OSPF options */
        !            62: /* present in HELLO, DD, LSA */
        !            63: #define OSPF6_OPT_SET(x,opt)   ((x)[2] |=  (opt))
        !            64: #define OSPF6_OPT_ISSET(x,opt) ((x)[2] &   (opt))
        !            65: #define OSPF6_OPT_CLEAR(x,opt) ((x)[2] &= ~(opt))
        !            66: #define OSPF6_OPT_CLEAR_ALL(x) ((x)[0] = (x)[1] = (x)[2] = 0)
        !            67: 
        !            68: #define OSPF6_OPT_DC (1 << 5)   /* Demand Circuit handling Capability */
        !            69: #define OSPF6_OPT_R  (1 << 4)   /* Forwarding Capability (Any Protocol) */
        !            70: #define OSPF6_OPT_N  (1 << 3)   /* Handling Type-7 LSA Capability */
        !            71: #define OSPF6_OPT_MC (1 << 2)   /* Multicasting Capability */
        !            72: #define OSPF6_OPT_E  (1 << 1)   /* AS External Capability */
        !            73: #define OSPF6_OPT_V6 (1 << 0)   /* IPv6 forwarding Capability */
        !            74: 
        !            75: /* OSPF6 Prefix */
        !            76: #define OSPF6_PREFIX_MIN_SIZE                  4U /* .length == 0 */
        !            77: struct ospf6_prefix
        !            78: {
        !            79:   u_int8_t prefix_length;
        !            80:   u_int8_t prefix_options;
        !            81:   union {
        !            82:     u_int16_t _prefix_metric;
        !            83:     u_int16_t _prefix_referenced_lstype;
        !            84:   } u;
        !            85: #define prefix_metric        u._prefix_metric
        !            86: #define prefix_refer_lstype  u._prefix_referenced_lstype
        !            87:   /* followed by one address_prefix */
        !            88: };
        !            89: 
        !            90: #define OSPF6_PREFIX_OPTION_NU (1 << 0)  /* No Unicast */
        !            91: #define OSPF6_PREFIX_OPTION_LA (1 << 1)  /* Local Address */
        !            92: #define OSPF6_PREFIX_OPTION_MC (1 << 2)  /* MultiCast */
        !            93: #define OSPF6_PREFIX_OPTION_P  (1 << 3)  /* Propagate (NSSA) */
        !            94: 
        !            95: /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */
        !            96: #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof (struct ospf6_prefix))
        !            97: 
        !            98: /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */
        !            99: #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4)
        !           100: 
        !           101: /* size_t OSPF6_PREFIX_SIZE (struct ospf6_prefix *); */
        !           102: #define OSPF6_PREFIX_SIZE(x) \
        !           103:    (OSPF6_PREFIX_SPACE ((x)->prefix_length) + sizeof (struct ospf6_prefix))
        !           104: 
        !           105: /* struct ospf6_prefix *OSPF6_PREFIX_NEXT (struct ospf6_prefix *); */
        !           106: #define OSPF6_PREFIX_NEXT(x) \
        !           107:    ((struct ospf6_prefix *)((caddr_t)(x) + OSPF6_PREFIX_SIZE (x)))
        !           108: 
        !           109: #define ospf6_prefix_in6_addr(in6, op)                         \
        !           110: do {                                                           \
        !           111:   memset (in6, 0, sizeof (struct in6_addr));                   \
        !           112:   memcpy (in6, (caddr_t) (op) + sizeof (struct ospf6_prefix),  \
        !           113:           OSPF6_PREFIX_SPACE ((op)->prefix_length));           \
        !           114: } while (0)
        !           115: 
        !           116: extern void ospf6_prefix_apply_mask (struct ospf6_prefix *op);
        !           117: extern void ospf6_prefix_options_printbuf (u_int8_t prefix_options,
        !           118:                                            char *buf, int size);
        !           119: extern void ospf6_capability_printbuf (char capability, char *buf, int size);
        !           120: extern void ospf6_options_printbuf (u_char *options, char *buf, int size);
        !           121: 
        !           122: #endif /* OSPF6_PROTO_H */