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/*
* 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 this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef OSPF_AREA_H
#define OSPF_AREA_H
#include "ospf6_top.h"
#include "lib/json.h"
struct ospf6_area {
/* Reference to Top data structure */
struct ospf6 *ospf6;
/* Area-ID */
in_addr_t area_id;
#define OSPF6_AREA_FMT_UNSET 0
#define OSPF6_AREA_FMT_DOTTEDQUAD 1
#define OSPF6_AREA_FMT_DECIMAL 2
/* Area-ID string */
char name[16];
/* flag */
uint8_t flag;
/* OSPF Option */
uint8_t options[3];
/* Summary routes to be originated (includes Configured Address Ranges)
*/
struct ospf6_route_table *range_table;
struct ospf6_route_table *nssa_range_table;
struct ospf6_route_table *summary_prefix;
struct ospf6_route_table *summary_router;
/* Area type */
int no_summary;
/* NSSA default-information-originate */
struct {
bool enabled;
int metric_type;
int metric_value;
} nssa_default_originate;
/* Brouter traversal protection */
bool intra_brouter_calc;
/* OSPF interface list */
struct list *if_list;
struct ospf6_lsdb *lsdb;
struct ospf6_lsdb *lsdb_self;
struct ospf6_lsdb *temp_router_lsa_lsdb;
struct ospf6_route_table *spf_table;
struct ospf6_route_table *route_table;
uint32_t spf_calculation; /* SPF calculation count */
struct thread *thread_router_lsa;
struct thread *thread_intra_prefix_lsa;
uint32_t router_lsa_size_limit;
/* Area announce list */
struct {
char *name;
struct access_list *list;
} _export;
#define EXPORT_NAME(A) (A)->_export.name
#define EXPORT_LIST(A) (A)->_export.list
/* Area acceptance list */
struct {
char *name;
struct access_list *list;
} import;
#define IMPORT_NAME(A) (A)->import.name
#define IMPORT_LIST(A) (A)->import.list
/* Type 3 LSA Area prefix-list */
struct {
char *name;
struct prefix_list *list;
} plist_in;
#define PREFIX_NAME_IN(A) (A)->plist_in.name
#define PREFIX_LIST_IN(A) (A)->plist_in.list
struct {
char *name;
struct prefix_list *list;
} plist_out;
#define PREFIX_NAME_OUT(A) (A)->plist_out.name
#define PREFIX_LIST_OUT(A) (A)->plist_out.list
/* Time stamps. */
struct timeval ts_spf; /* SPF calculation time stamp. */
uint32_t full_nbrs; /* Fully adjacent neighbors. */
uint8_t intra_prefix_originate; /* Force intra_prefix lsa originate */
uint8_t NSSATranslatorRole; /* NSSA configured role */
#define OSPF6_NSSA_ROLE_NEVER 0
#define OSPF6_NSSA_ROLE_CANDIDATE 1
#define OSPF6_NSSA_ROLE_ALWAYS 2
uint8_t NSSATranslatorState; /* NSSA operational role */
#define OSPF6_NSSA_TRANSLATE_DISABLED 0
#define OSPF6_NSSA_TRANSLATE_ENABLED 1
};
#define OSPF6_AREA_DEFAULT 0x00
#define OSPF6_AREA_ENABLE 0x01
#define OSPF6_AREA_ACTIVE 0x02
#define OSPF6_AREA_TRANSIT 0x04 /* TransitCapability */
#define OSPF6_AREA_STUB 0x08
#define OSPF6_AREA_NSSA 0x10
#define IS_AREA_ENABLED(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ENABLE))
#define IS_AREA_ACTIVE(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ACTIVE))
#define IS_AREA_TRANSIT(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_TRANSIT))
#define IS_AREA_STUB(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_STUB))
#define IS_AREA_NSSA(oa) (CHECK_FLAG((oa)->flag, OSPF6_AREA_NSSA))
#define OSPF6_CMD_AREA_GET(str, oa, ospf6) \
{ \
uint32_t area_id; \
int format, ret; \
ret = str2area_id(str, &area_id, &format); \
if (ret) { \
vty_out(vty, "Malformed Area-ID: %s\n", str); \
return CMD_WARNING; \
} \
oa = ospf6_area_lookup(area_id, ospf6); \
if (oa == NULL) \
oa = ospf6_area_create(area_id, ospf6, format); \
}
/* prototypes */
extern int str2area_id(const char *str, uint32_t *area_id, int *area_id_fmt);
extern void area_id2str(char *buf, int len, uint32_t area_id, int area_id_fmt);
extern int ospf6_area_cmp(void *va, void *vb);
extern struct ospf6_area *ospf6_area_create(uint32_t area_id,
struct ospf6 *ospf6, int df);
extern void ospf6_area_delete(struct ospf6_area *oa);
extern struct ospf6_area *ospf6_area_lookup(uint32_t area_id,
struct ospf6 *ospf6);
extern struct ospf6_area *ospf6_area_lookup_by_area_id(uint32_t area_id);
extern void ospf6_area_stub_unset(struct ospf6 *ospf6, struct ospf6_area *area);
extern void ospf6_area_enable(struct ospf6_area *oa);
extern void ospf6_area_disable(struct ospf6_area *oa);
extern void ospf6_area_show(struct vty *vty, struct ospf6_area *oa,
json_object *json_areas, bool use_json);
extern void ospf6_plist_update(struct prefix_list *plist);
extern void ospf6_filter_update(struct access_list *access);
extern void ospf6_area_config_write(struct vty *vty, struct ospf6 *ospf6);
extern void ospf6_area_init(void);
struct ospf6_interface;
extern void ospf6_area_interface_delete(struct ospf6_interface *oi);
#endif /* OSPF_AREA_H */
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