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/*
* 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
#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.
* <http://www.iana.org/assignments/ospf-opaque-types>
*/
#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. */
struct vty;
struct stream;
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),
void (* 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 *new, int rt_recalc);
extern void 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, list lsas);
extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor *nbr, list lsas);
extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr, list acks);
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 */
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