/* * This is an implementation of rfc2370. * Copyright (C) 2001 KDD R&D Laboratories, Inc. * http://www.kddlabs.co.jp/ * * 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 _ZEBRA_OSPF_OPAQUE_H #define _ZEBRA_OSPF_OPAQUE_H #include "vty.h" #define IS_OPAQUE_LSA(type) \ ((type) == OSPF_OPAQUE_LINK_LSA || \ (type) == OSPF_OPAQUE_AREA_LSA || \ (type) == OSPF_OPAQUE_AS_LSA) /* * Usage of Opaque-LSA administrative flags in "struct ospf". * * 7 6 5 4 3 2 1 0 * +---+---+---+---+---+---+---+---+ * |///|///|///|///|B11|B10|B09| O | * +---+---+---+---+---+---+---+---+ * |<--------->| A * | +--- Operation status (operational = 1) * +----------- Blocking status for each LSA type */ #define IS_OPAQUE_LSA_ORIGINATION_BLOCKED(V) \ CHECK_FLAG((V), (OPAQUE_BLOCK_TYPE_09_LSA_BIT | \ OPAQUE_BLOCK_TYPE_10_LSA_BIT | \ OPAQUE_BLOCK_TYPE_11_LSA_BIT)) /* * Opaque LSA's link state ID is redefined as follows. * * 24 16 8 0 * +--------+--------+--------+--------+ * |tttttttt|........|........|........| * +--------+--------+--------+--------+ * |<-Type->|<------- Opaque ID ------>| */ #define LSID_OPAQUE_TYPE_MASK 0xff000000 /* 8 bits */ #define LSID_OPAQUE_ID_MASK 0x00ffffff /* 24 bits */ #define GET_OPAQUE_TYPE(lsid) \ (((u_int32_t)(lsid) & LSID_OPAQUE_TYPE_MASK) >> 24) #define GET_OPAQUE_ID(lsid) \ ((u_int32_t)(lsid) & LSID_OPAQUE_ID_MASK) #define SET_OPAQUE_LSID(type, id) \ ((((type) << 24) & LSID_OPAQUE_TYPE_MASK) \ | ((id) & LSID_OPAQUE_ID_MASK)) /* * Opaque LSA types will be assigned by IANA. * */ #define OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA 1 #define OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC 2 #define OPAQUE_TYPE_GRACE_LSA 3 /* Followings types are proposed in internet-draft documents. */ #define OPAQUE_TYPE_8021_QOSPF 129 #define OPAQUE_TYPE_SECONDARY_NEIGHBOR_DISCOVERY 224 #define OPAQUE_TYPE_FLOODGATE 225 /* Ugly hack to make use of an unallocated value for wildcard matching! */ #define OPAQUE_TYPE_WILDCARD 0 #define OPAQUE_TYPE_RANGE_UNASSIGNED(type) \ ( 4 <= (type) && (type) <= 127) #define OPAQUE_TYPE_RANGE_RESERVED(type) \ (127 < (type) && (type) <= 255) #define VALID_OPAQUE_INFO_LEN(lsahdr) \ ((ntohs((lsahdr)->length) >= sizeof (struct lsa_header)) && \ ((ntohs((lsahdr)->length) % sizeof (u_int32_t)) == 0)) /* Prototypes. */ extern void ospf_opaque_init (void); extern void ospf_opaque_term (void); extern int ospf_opaque_type9_lsa_init (struct ospf_interface *oi); extern void ospf_opaque_type9_lsa_term (struct ospf_interface *oi); extern int ospf_opaque_type10_lsa_init (struct ospf_area *area); extern void ospf_opaque_type10_lsa_term (struct ospf_area *area); extern int ospf_opaque_type11_lsa_init (struct ospf *ospf); extern void ospf_opaque_type11_lsa_term (struct ospf *ospf); extern int ospf_register_opaque_functab ( u_char lsa_type, u_char opaque_type, int (* new_if_hook)(struct interface *ifp), int (* del_if_hook)(struct interface *ifp), void (* ism_change_hook)(struct ospf_interface *oi, int old_status), void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status), void (* config_write_router)(struct vty *vty), void (* config_write_if )(struct vty *vty, struct interface *ifp), void (* config_write_debug )(struct vty *vty), void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa), int (* lsa_originator)(void *arg), struct ospf_lsa *(* lsa_refresher )(struct ospf_lsa *lsa), int (* new_lsa_hook)(struct ospf_lsa *lsa), int (* del_lsa_hook)(struct ospf_lsa *lsa) ); extern void ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type); extern int ospf_opaque_new_if (struct interface *ifp); extern int ospf_opaque_del_if (struct interface *ifp); extern void ospf_opaque_ism_change (struct ospf_interface *oi, int old_status); extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr, int old_status); extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *); extern void ospf_opaque_config_write_if (struct vty *vty, struct interface *ifp); extern void ospf_opaque_config_write_debug (struct vty *vty); extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa); extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length); extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi, int *init_delay); extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *, int rt_recalc); extern struct ospf_lsa *ospf_opaque_lsa_refresh (struct ospf_lsa *lsa); extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent, u_char lsa_type, u_char opaque_type); extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa); extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa); extern void ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr, struct list *lsas); extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor *nbr, struct ospf_lsa *lsa); extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr, struct ospf_lsa *lsa); extern void htonf (float *src, float *dst); extern void ntohf (float *src, float *dst); extern struct ospf *oi_to_top (struct ospf_interface *oi); #endif /* _ZEBRA_OSPF_OPAQUE_H */