Annotation of embedaddon/quagga/ospfd/ospf_opaque.h, revision 1.1
1.1 ! misho 1: /*
! 2: * This is an implementation of rfc2370.
! 3: * Copyright (C) 2001 KDD R&D Laboratories, Inc.
! 4: * http://www.kddlabs.co.jp/
! 5: *
! 6: * This file is part of GNU Zebra.
! 7: *
! 8: * GNU Zebra is free software; you can redistribute it and/or modify it
! 9: * under the terms of the GNU General Public License as published by the
! 10: * Free Software Foundation; either version 2, or (at your option) any
! 11: * later version.
! 12: *
! 13: * GNU Zebra is distributed in the hope that it will be useful, but
! 14: * WITHOUT ANY WARRANTY; without even the implied warranty of
! 15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! 16: * General Public License for more details.
! 17: *
! 18: * You should have received a copy of the GNU General Public License
! 19: * along with GNU Zebra; see the file COPYING. If not, write to the Free
! 20: * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
! 21: * 02111-1307, USA.
! 22: */
! 23:
! 24: #ifndef _ZEBRA_OSPF_OPAQUE_H
! 25: #define _ZEBRA_OSPF_OPAQUE_H
! 26:
! 27: #include "vty.h"
! 28:
! 29: #define IS_OPAQUE_LSA(type) \
! 30: ((type) == OSPF_OPAQUE_LINK_LSA || \
! 31: (type) == OSPF_OPAQUE_AREA_LSA || \
! 32: (type) == OSPF_OPAQUE_AS_LSA)
! 33:
! 34: /*
! 35: * Usage of Opaque-LSA administrative flags in "struct ospf".
! 36: *
! 37: * 7 6 5 4 3 2 1 0
! 38: * +---+---+---+---+---+---+---+---+
! 39: * |///|///|///|///|B11|B10|B09| O |
! 40: * +---+---+---+---+---+---+---+---+
! 41: * |<--------->| A
! 42: * | +--- Operation status (operational = 1)
! 43: * +----------- Blocking status for each LSA type
! 44: */
! 45:
! 46: #define IS_OPAQUE_LSA_ORIGINATION_BLOCKED(V) \
! 47: CHECK_FLAG((V), (OPAQUE_BLOCK_TYPE_09_LSA_BIT | \
! 48: OPAQUE_BLOCK_TYPE_10_LSA_BIT | \
! 49: OPAQUE_BLOCK_TYPE_11_LSA_BIT))
! 50:
! 51: /*
! 52: * Opaque LSA's link state ID is redefined as follows.
! 53: *
! 54: * 24 16 8 0
! 55: * +--------+--------+--------+--------+
! 56: * |tttttttt|........|........|........|
! 57: * +--------+--------+--------+--------+
! 58: * |<-Type->|<------- Opaque ID ------>|
! 59: */
! 60: #define LSID_OPAQUE_TYPE_MASK 0xff000000 /* 8 bits */
! 61: #define LSID_OPAQUE_ID_MASK 0x00ffffff /* 24 bits */
! 62:
! 63: #define GET_OPAQUE_TYPE(lsid) \
! 64: (((u_int32_t)(lsid) & LSID_OPAQUE_TYPE_MASK) >> 24)
! 65:
! 66: #define GET_OPAQUE_ID(lsid) \
! 67: ((u_int32_t)(lsid) & LSID_OPAQUE_ID_MASK)
! 68:
! 69: #define SET_OPAQUE_LSID(type, id) \
! 70: ((((type) << 24) & LSID_OPAQUE_TYPE_MASK) \
! 71: | ((id) & LSID_OPAQUE_ID_MASK))
! 72:
! 73: /*
! 74: * Opaque LSA types will be assigned by IANA.
! 75: * <http://www.iana.org/assignments/ospf-opaque-types>
! 76: */
! 77: #define OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA 1
! 78: #define OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC 2
! 79: #define OPAQUE_TYPE_GRACE_LSA 3
! 80:
! 81: /* Followings types are proposed in internet-draft documents. */
! 82: #define OPAQUE_TYPE_8021_QOSPF 129
! 83: #define OPAQUE_TYPE_SECONDARY_NEIGHBOR_DISCOVERY 224
! 84: #define OPAQUE_TYPE_FLOODGATE 225
! 85:
! 86: /* Ugly hack to make use of an unallocated value for wildcard matching! */
! 87: #define OPAQUE_TYPE_WILDCARD 0
! 88:
! 89: #define OPAQUE_TYPE_RANGE_UNASSIGNED(type) \
! 90: ( 4 <= (type) && (type) <= 127)
! 91:
! 92: #define OPAQUE_TYPE_RANGE_RESERVED(type) \
! 93: (127 < (type) && (type) <= 255)
! 94:
! 95: #define VALID_OPAQUE_INFO_LEN(lsahdr) \
! 96: ((ntohs((lsahdr)->length) >= sizeof (struct lsa_header)) && \
! 97: ((ntohs((lsahdr)->length) % sizeof (u_int32_t)) == 0))
! 98:
! 99: /* Prototypes. */
! 100:
! 101: extern void ospf_opaque_init (void);
! 102: extern void ospf_opaque_term (void);
! 103: extern int ospf_opaque_type9_lsa_init (struct ospf_interface *oi);
! 104: extern void ospf_opaque_type9_lsa_term (struct ospf_interface *oi);
! 105: extern int ospf_opaque_type10_lsa_init (struct ospf_area *area);
! 106: extern void ospf_opaque_type10_lsa_term (struct ospf_area *area);
! 107: extern int ospf_opaque_type11_lsa_init (struct ospf *ospf);
! 108: extern void ospf_opaque_type11_lsa_term (struct ospf *ospf);
! 109:
! 110: extern int
! 111: ospf_register_opaque_functab (
! 112: u_char lsa_type,
! 113: u_char opaque_type,
! 114: int (* new_if_hook)(struct interface *ifp),
! 115: int (* del_if_hook)(struct interface *ifp),
! 116: void (* ism_change_hook)(struct ospf_interface *oi, int old_status),
! 117: void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status),
! 118: void (* config_write_router)(struct vty *vty),
! 119: void (* config_write_if )(struct vty *vty, struct interface *ifp),
! 120: void (* config_write_debug )(struct vty *vty),
! 121: void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa),
! 122: int (* lsa_originator)(void *arg),
! 123: struct ospf_lsa *(* lsa_refresher )(struct ospf_lsa *lsa),
! 124: int (* new_lsa_hook)(struct ospf_lsa *lsa),
! 125: int (* del_lsa_hook)(struct ospf_lsa *lsa)
! 126: );
! 127: extern void ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type);
! 128:
! 129: extern int ospf_opaque_new_if (struct interface *ifp);
! 130: extern int ospf_opaque_del_if (struct interface *ifp);
! 131: extern void ospf_opaque_ism_change (struct ospf_interface *oi,
! 132: int old_status);
! 133: extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr,
! 134: int old_status);
! 135: extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *);
! 136: extern void ospf_opaque_config_write_if (struct vty *vty,
! 137: struct interface *ifp);
! 138: extern void ospf_opaque_config_write_debug (struct vty *vty);
! 139: extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa);
! 140: extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length);
! 141:
! 142: extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi,
! 143: int *init_delay);
! 144: extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *,
! 145: int rt_recalc);
! 146: extern struct ospf_lsa *ospf_opaque_lsa_refresh (struct ospf_lsa *lsa);
! 147:
! 148: extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent,
! 149: u_char lsa_type,
! 150: u_char opaque_type);
! 151: extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa);
! 152: extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa);
! 153:
! 154: extern void ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr,
! 155: struct list *lsas);
! 156: extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor
! 157: *nbr,
! 158: struct ospf_lsa *lsa);
! 159: extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr,
! 160: struct ospf_lsa *lsa);
! 161:
! 162: extern void htonf (float *src, float *dst);
! 163: extern void ntohf (float *src, float *dst);
! 164: extern struct ospf *oi_to_top (struct ospf_interface *oi);
! 165:
! 166: #endif /* _ZEBRA_OSPF_OPAQUE_H */
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