[mirror_frr.git] / ospfd / ospf_interface.h

/*
 * OSPF Interface functions.
 * Copyright (C) 1999 Toshiaki Takada
 *
 * 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_INTERFACE_H
#define _ZEBRA_OSPF_INTERFACE_H

#include "ospfd/ospf_packet.h"
#include "ospfd/ospf_spf.h"

#define IF_OSPF_IF_INFO(I) ((struct ospf_if_info *)((I)->info))
#define IF_DEF_PARAMS(I) (IF_OSPF_IF_INFO (I)->def_params)
#define IF_OIFS(I)  (IF_OSPF_IF_INFO (I)->oifs)
#define IF_OIFS_PARAMS(I) (IF_OSPF_IF_INFO (I)->params)
			    
#define OSPF_IF_PARAM_CONFIGURED(S, P) ((S) && (S)->P##__config)
#define OSPF_IF_PARAM(O, P) \
        (OSPF_IF_PARAM_CONFIGURED ((O)->params, P)?\
                        (O)->params->P:IF_DEF_PARAMS((O)->ifp)->P)

#define DECLARE_IF_PARAM(T, P) T P; u_char P##__config:1
#define UNSET_IF_PARAM(S, P) ((S)->P##__config) = 0
#define SET_IF_PARAM(S, P) ((S)->P##__config) = 1

struct ospf_if_params
{
  DECLARE_IF_PARAM (u_int32_t, transmit_delay); /* Interface Transmisson Delay */
  DECLARE_IF_PARAM (u_int32_t, output_cost_cmd);/* Command Interface Output Cost */
  DECLARE_IF_PARAM (u_int32_t, retransmit_interval); /* Retransmission Interval */
  DECLARE_IF_PARAM (u_char, bfd);                    /* Respond to BFD events */
  DECLARE_IF_PARAM (u_char, passive_interface);      /* OSPF Interface is passive: no sending or receiving (no need to join multicast groups) */
  DECLARE_IF_PARAM (u_char, priority);               /* OSPF Interface priority */
  DECLARE_IF_PARAM (u_char, type);                   /* type of interface */
#define OSPF_IF_ACTIVE                  0
#define OSPF_IF_PASSIVE		        1

#define OSPF_IF_PASSIVE_STATUS(O) \
       (OSPF_IF_PARAM_CONFIGURED((O)->params, passive_interface) ? \
         (O)->params->passive_interface : \
         (OSPF_IF_PARAM_CONFIGURED(IF_DEF_PARAMS((O)->ifp), passive_interface) ? \
           IF_DEF_PARAMS((O)->ifp)->passive_interface : \
           (O)->ospf->passive_interface_default))
  
  DECLARE_IF_PARAM (u_int32_t, v_hello);             /* Hello Interval */
  DECLARE_IF_PARAM (u_int32_t, v_wait);              /* Router Dead Interval */

  /* MTU mismatch check (see RFC2328, chap 10.6) */ 
  DECLARE_IF_PARAM (u_char, mtu_ignore);
  
  /* Fast-Hellos */
  DECLARE_IF_PARAM (u_char, fast_hello);
  
  /* Authentication data. */
  u_char auth_simple[OSPF_AUTH_SIMPLE_SIZE + 1];       /* Simple password. */
  u_char auth_simple__config:1;
  
  DECLARE_IF_PARAM (struct list *, auth_crypt);    /* List of Auth cryptographic data. */
  DECLARE_IF_PARAM (int, auth_type);               /* OSPF authentication type */
  
  /* Other, non-configuration state */
  u_int32_t network_lsa_seqnum;		/* Network LSA seqnum */
};

enum
{
  MEMBER_ALLROUTERS = 0,
  MEMBER_DROUTERS,
  MEMBER_MAX,
};

struct ospf_if_info
{
  struct ospf_if_params *def_params;
  struct route_table *params;
  struct route_table *oifs;
  unsigned int membership_counts[MEMBER_MAX];	/* multicast group refcnts */
};

struct ospf_interface;

struct ospf_vl_data
{
  struct in_addr    vl_peer;	   /* Router-ID of the peer for VLs. */
  struct in_addr    vl_area_id;	   /* Transit area for this VL. */
  int format;                      /* area ID format */
  struct ospf_interface *vl_oi;	   /* Interface data structure for the VL. */
  struct vertex_nexthop nexthop;   /* Nexthop router and oi to use */
  struct in_addr    peer_addr;	   /* Address used to reach the peer. */
  u_char flags;
};


#define OSPF_VL_MAX_COUNT 256
#define OSPF_VL_MTU	  1500

#define OSPF_VL_FLAG_APPROVED 0x01

struct crypt_key
{
  u_char key_id;
  u_char auth_key[OSPF_AUTH_MD5_SIZE + 1];
};

/* OSPF interface structure. */
struct ospf_interface
{
  /* This interface's parent ospf instance. */
  struct ospf *ospf;

  /* OSPF Area. */
  struct ospf_area *area;

  /* Position range in Router LSA */
  uint16_t lsa_pos_beg; /* inclusive, >= */
  uint16_t lsa_pos_end; /* exclusive, <  */

  /* Interface data from zebra. */
  struct interface *ifp;
  struct ospf_vl_data *vl_data;		/* Data for Virtual Link */
  
  /* Packet send buffer. */
  struct ospf_fifo *obuf;		/* Output queue */

  /* OSPF Network Type. */
  u_char type;

  /* State of Interface State Machine. */
  u_char state;

  /* To which multicast groups do we currently belong? */
  u_char multicast_memberships;
#define OI_MEMBER_FLAG(M) (1 << (M))
#define OI_MEMBER_COUNT(O,M) (IF_OSPF_IF_INFO(oi->ifp)->membership_counts[(M)])
#define OI_MEMBER_CHECK(O,M) \
    (CHECK_FLAG((O)->multicast_memberships, OI_MEMBER_FLAG(M)))
#define OI_MEMBER_JOINED(O,M) \
  do { \
    SET_FLAG ((O)->multicast_memberships, OI_MEMBER_FLAG(M)); \
    IF_OSPF_IF_INFO((O)->ifp)->membership_counts[(M)]++; \
  } while (0)
#define OI_MEMBER_LEFT(O,M) \
  do { \
    UNSET_FLAG ((O)->multicast_memberships, OI_MEMBER_FLAG(M)); \
    IF_OSPF_IF_INFO((O)->ifp)->membership_counts[(M)]--; \
  } while (0)

  struct prefix *address;		/* Interface prefix */
  struct connected *connected;          /* Pointer to connected */ 

  /* Configured varables. */
  struct ospf_if_params *params;
  
  u_int32_t crypt_seqnum;		/* Cryptographic Sequence Number */ 
  u_int32_t output_cost;	        /* Acutual Interface Output Cost */

  /* Neighbor information. */
  struct route_table *nbrs;             /* OSPF Neighbor List */
  struct ospf_neighbor *nbr_self;	/* Neighbor Self */
#define DR(I)			((I)->nbr_self->d_router)
#define BDR(I)			((I)->nbr_self->bd_router)
#define OPTIONS(I)		((I)->nbr_self->options)
#define PRIORITY(I)		((I)->nbr_self->priority)

  /* List of configured NBMA neighbor. */
  struct list *nbr_nbma;

  /* self-originated LSAs. */
  struct ospf_lsa *network_lsa_self;	/* network-LSA. */
#ifdef HAVE_OPAQUE_LSA
  struct list *opaque_lsa_self;			/* Type-9 Opaque-LSAs */
#endif /* HAVE_OPAQUE_LSA */

  struct route_table *ls_upd_queue;

  struct list *ls_ack;			/* Link State Acknowledgment list. */
  
  struct
  {
    struct list *ls_ack;
    struct in_addr dst;
  } ls_ack_direct;

  /* Timer values. */
  u_int32_t v_ls_ack;			/* Delayed Link State Acknowledgment */

  /* Threads. */
  struct thread *t_hello;               /* timer */
  struct thread *t_wait;                /* timer */
  struct thread *t_ls_ack;              /* timer */
  struct thread *t_ls_ack_direct;       /* event */
  struct thread *t_ls_upd_event;        /* event */
#ifdef HAVE_OPAQUE_LSA
  struct thread *t_opaque_lsa_self;     /* Type-9 Opaque-LSAs */
#endif /* HAVE_OPAQUE_LSA */

  int on_write_q;
  
  /* Statistics fields. */
  u_int32_t hello_in;	        /* Hello message input count. */
  u_int32_t hello_out;	        /* Hello message output count. */
  u_int32_t db_desc_in;         /* database desc. message input count. */
  u_int32_t db_desc_out;        /* database desc. message output count. */
  u_int32_t ls_req_in;          /* LS request message input count. */
  u_int32_t ls_req_out;         /* LS request message output count. */
  u_int32_t ls_upd_in;          /* LS update message input count. */
  u_int32_t ls_upd_out;         /* LS update message output count. */
  u_int32_t ls_ack_in;          /* LS Ack message input count. */
  u_int32_t ls_ack_out;         /* LS Ack message output count. */
  u_int32_t discarded;		/* discarded input count by error. */
  u_int32_t state_change;	/* Number of status change. */

  u_int32_t full_nbrs;
};

/* Prototypes. */
extern char *ospf_if_name (struct ospf_interface *);
extern struct ospf_interface *ospf_if_new (struct ospf *, struct interface *,
					   struct prefix *);
extern void ospf_if_cleanup (struct ospf_interface *);
extern void ospf_if_free (struct ospf_interface *);
extern int ospf_if_up (struct ospf_interface *);
extern int ospf_if_down (struct ospf_interface *);

extern int ospf_if_is_up (struct ospf_interface *);
extern struct ospf_interface *ospf_if_exists (struct ospf_interface *);
extern struct ospf_interface *ospf_if_lookup_by_lsa_pos (struct ospf_area *,
							 int);
extern struct ospf_interface *ospf_if_lookup_by_local_addr (struct ospf *,
							    struct interface
							    *,
							    struct in_addr);
extern struct ospf_interface *ospf_if_lookup_by_prefix (struct ospf *,
							struct prefix_ipv4 *);
extern struct ospf_interface *ospf_if_table_lookup (struct interface *,
						    struct prefix *);
extern struct ospf_interface *ospf_if_addr_local (struct in_addr);
extern struct ospf_interface *ospf_if_lookup_recv_if (struct ospf *,
						      struct in_addr,
						      struct interface *);
extern struct ospf_interface *ospf_if_is_configured (struct ospf *,
						     struct in_addr *);

extern struct ospf_if_params *ospf_lookup_if_params (struct interface *,
						     struct in_addr);
extern struct ospf_if_params *ospf_get_if_params (struct interface *,
						  struct in_addr);
extern void ospf_del_if_params (struct ospf_if_params *);
extern void ospf_free_if_params (struct interface *, struct in_addr);
extern void ospf_if_update_params (struct interface *, struct in_addr);

extern int ospf_if_new_hook (struct interface *);
extern void ospf_if_init (void);
extern void ospf_if_stream_set (struct ospf_interface *);
extern void ospf_if_stream_unset (struct ospf_interface *);
extern void ospf_if_reset_variables (struct ospf_interface *);
extern int ospf_if_is_enable (struct ospf_interface *);
extern int ospf_if_get_output_cost (struct ospf_interface *);
extern void ospf_if_recalculate_output_cost (struct interface *);

/* Simulate down/up on the interface. */
extern void ospf_if_reset (struct interface *);

extern struct ospf_interface *ospf_vl_new (struct ospf *,
					   struct ospf_vl_data *);
extern struct ospf_vl_data *ospf_vl_data_new (struct ospf_area *,
					      struct in_addr);
extern struct ospf_vl_data *ospf_vl_lookup (struct ospf *, struct ospf_area *,
					    struct in_addr);
extern void ospf_vl_data_free (struct ospf_vl_data *);
extern void ospf_vl_add (struct ospf *, struct ospf_vl_data *);
extern void ospf_vl_delete (struct ospf *, struct ospf_vl_data *);
extern void ospf_vl_up_check (struct ospf_area *, struct in_addr,
			      struct vertex *);
extern void ospf_vl_unapprove (struct ospf *);
extern void ospf_vl_shut_unapproved (struct ospf *);
extern int ospf_full_virtual_nbrs (struct ospf_area *);
extern int ospf_vls_in_area (struct ospf_area *);

extern struct crypt_key *ospf_crypt_key_lookup (struct list *, u_char);
extern struct crypt_key *ospf_crypt_key_new (void);
extern void ospf_crypt_key_add (struct list *, struct crypt_key *);
extern int ospf_crypt_key_delete (struct list *, u_char);

extern u_char ospf_default_iftype (struct interface *ifp);

/* Set all multicast memberships appropriately based on the type and
   state of the interface. */
extern void ospf_if_set_multicast (struct ospf_interface *);

#endif /* _ZEBRA_OSPF_INTERFACE_H */
Commit	Line	Data
718e3744	1	/*
	2	* OSPF Interface functions.
	3	* Copyright (C) 1999 Toshiaki Takada
	4	*
	5	* This file is part of GNU Zebra.
	6	*
	7	* GNU Zebra is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published
	9	* by the Free Software Foundation; either version 2, or (at your
	10	* option) any 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 _ZEBRA_OSPF_INTERFACE_H
	24	#define _ZEBRA_OSPF_INTERFACE_H
	25
6c835671	26	#include "ospfd/ospf_packet.h"
9c27ef9b	27	#include "ospfd/ospf_spf.h"
718e3744	28
	29	#define IF_OSPF_IF_INFO(I) ((struct ospf_if_info *)((I)->info))
	30	#define IF_DEF_PARAMS(I) (IF_OSPF_IF_INFO (I)->def_params)
	31	#define IF_OIFS(I) (IF_OSPF_IF_INFO (I)->oifs)
	32	#define IF_OIFS_PARAMS(I) (IF_OSPF_IF_INFO (I)->params)
	33
	34	#define OSPF_IF_PARAM_CONFIGURED(S, P) ((S) && (S)->P##__config)
	35	#define OSPF_IF_PARAM(O, P) \
	36	(OSPF_IF_PARAM_CONFIGURED ((O)->params, P)?\
	37	(O)->params->P:IF_DEF_PARAMS((O)->ifp)->P)
	38
	39	#define DECLARE_IF_PARAM(T, P) T P; u_char P##__config:1
	40	#define UNSET_IF_PARAM(S, P) ((S)->P##__config) = 0
	41	#define SET_IF_PARAM(S, P) ((S)->P##__config) = 1
	42
	43	struct ospf_if_params
	44	{
	45	DECLARE_IF_PARAM (u_int32_t, transmit_delay); /* Interface Transmisson Delay */
	46	DECLARE_IF_PARAM (u_int32_t, output_cost_cmd);/* Command Interface Output Cost */
	47	DECLARE_IF_PARAM (u_int32_t, retransmit_interval); /* Retransmission Interval */
d5a5c8f0	48	DECLARE_IF_PARAM (u_char, bfd); /* Respond to BFD events */
ba6454ec	49	DECLARE_IF_PARAM (u_char, passive_interface); /* OSPF Interface is passive: no sending or receiving (no need to join multicast groups) */
718e3744	50	DECLARE_IF_PARAM (u_char, priority); /* OSPF Interface priority */
	51	DECLARE_IF_PARAM (u_char, type); /* type of interface */
	52	#define OSPF_IF_ACTIVE 0
	53	#define OSPF_IF_PASSIVE 1
7ffa8fa2 PJ	54
	55	#define OSPF_IF_PASSIVE_STATUS(O) \
	56	(OSPF_IF_PARAM_CONFIGURED((O)->params, passive_interface) ? \
	57	(O)->params->passive_interface : \
	58	(OSPF_IF_PARAM_CONFIGURED(IF_DEF_PARAMS((O)->ifp), passive_interface) ? \
	59	IF_DEF_PARAMS((O)->ifp)->passive_interface : \
	60	(O)->ospf->passive_interface_default))
718e3744	61
	62	DECLARE_IF_PARAM (u_int32_t, v_hello); /* Hello Interval */
	63	DECLARE_IF_PARAM (u_int32_t, v_wait); /* Router Dead Interval */
	64
ba682537	65	/* MTU mismatch check (see RFC2328, chap 10.6) */
ba682537	66	DECLARE_IF_PARAM (u_char, mtu_ignore);
f9ad937f	67
	68	/* Fast-Hellos */
	69	DECLARE_IF_PARAM (u_char, fast_hello);
	70
718e3744	71	/* Authentication data. */
	72	u_char auth_simple[OSPF_AUTH_SIMPLE_SIZE + 1]; /* Simple password. */
	73	u_char auth_simple__config:1;
	74
52dc7ee6	75	DECLARE_IF_PARAM (struct list , auth_crypt); / List of Auth cryptographic data. */
718e3744	76	DECLARE_IF_PARAM (int, auth_type); /* OSPF authentication type */
7eb5b47e PJ	77
	78	/* Other, non-configuration state */
	79	u_int32_t network_lsa_seqnum; /* Network LSA seqnum */
718e3744	80	};
718e3744	81
429ac78c PJ	82	enum
	83	{
	84	MEMBER_ALLROUTERS = 0,
	85	MEMBER_DROUTERS,
	86	MEMBER_MAX,
	87	};
	88
718e3744	89	struct ospf_if_info
	90	{
	91	struct ospf_if_params *def_params;
	92	struct route_table *params;
	93	struct route_table *oifs;
429ac78c	94	unsigned int membership_counts[MEMBER_MAX]; /* multicast group refcnts */
718e3744	95	};
	96
	97	struct ospf_interface;
	98
	99	struct ospf_vl_data
	100	{
	101	struct in_addr vl_peer; /* Router-ID of the peer for VLs. */
	102	struct in_addr vl_area_id; /* Transit area for this VL. */
	103	int format; /* area ID format */
	104	struct ospf_interface vl_oi; / Interface data structure for the VL. */
9c27ef9b	105	struct vertex_nexthop nexthop; /* Nexthop router and oi to use */
718e3744	106	struct in_addr peer_addr; /* Address used to reach the peer. */
	107	u_char flags;
	108	};
	109
	110
	111	#define OSPF_VL_MAX_COUNT 256
	112	#define OSPF_VL_MTU 1500
	113
	114	#define OSPF_VL_FLAG_APPROVED 0x01
	115
	116	struct crypt_key
	117	{
	118	u_char key_id;
	119	u_char auth_key[OSPF_AUTH_MD5_SIZE + 1];
	120	};
	121
	122	/* OSPF interface structure. */
	123	struct ospf_interface
	124	{
	125	/* This interface's parent ospf instance. */
	126	struct ospf *ospf;
	127
	128	/* OSPF Area. */
	129	struct ospf_area *area;
	130
c81ee5c9 JT	131	/* Position range in Router LSA */
	132	uint16_t lsa_pos_beg; /* inclusive, >= */
	133	uint16_t lsa_pos_end; /* exclusive, < */
	134
718e3744	135	/* Interface data from zebra. */
	136	struct interface *ifp;
	137	struct ospf_vl_data vl_data; / Data for Virtual Link */
	138
	139	/* Packet send buffer. */
	140	struct ospf_fifo obuf; / Output queue */
	141
	142	/* OSPF Network Type. */
	143	u_char type;
718e3744	144
	145	/* State of Interface State Machine. */
	146	u_char state;
	147
ba6454ec	148	/* To which multicast groups do we currently belong? */
ba6454ec	149	u_char multicast_memberships;
429ac78c PJ	150	#define OI_MEMBER_FLAG(M) (1 << (M))
	151	#define OI_MEMBER_COUNT(O,M) (IF_OSPF_IF_INFO(oi->ifp)->membership_counts[(M)])
	152	#define OI_MEMBER_CHECK(O,M) \
	153	(CHECK_FLAG((O)->multicast_memberships, OI_MEMBER_FLAG(M)))
	154	#define OI_MEMBER_JOINED(O,M) \
	155	do { \
	156	SET_FLAG ((O)->multicast_memberships, OI_MEMBER_FLAG(M)); \
	157	IF_OSPF_IF_INFO((O)->ifp)->membership_counts[(M)]++; \
	158	} while (0)
	159	#define OI_MEMBER_LEFT(O,M) \
	160	do { \
	161	UNSET_FLAG ((O)->multicast_memberships, OI_MEMBER_FLAG(M)); \
	162	IF_OSPF_IF_INFO((O)->ifp)->membership_counts[(M)]--; \
	163	} while (0)
ba6454ec	164
8cfde376	165	struct prefix address; / Interface prefix */
	166	struct connected connected; / Pointer to connected */
	167
718e3744	168	/* Configured varables. */
718e3744	169	struct ospf_if_params *params;
7eb5b47e	170
718e3744	171	u_int32_t crypt_seqnum; /* Cryptographic Sequence Number */
	172	u_int32_t output_cost; /* Acutual Interface Output Cost */
	173
	174	/* Neighbor information. */
	175	struct route_table nbrs; / OSPF Neighbor List */
	176	struct ospf_neighbor nbr_self; / Neighbor Self */
	177	#define DR(I) ((I)->nbr_self->d_router)
	178	#define BDR(I) ((I)->nbr_self->bd_router)
	179	#define OPTIONS(I) ((I)->nbr_self->options)
	180	#define PRIORITY(I) ((I)->nbr_self->priority)
	181
	182	/* List of configured NBMA neighbor. */
52dc7ee6	183	struct list *nbr_nbma;
718e3744	184
	185	/* self-originated LSAs. */
	186	struct ospf_lsa network_lsa_self; / network-LSA. */
	187	#ifdef HAVE_OPAQUE_LSA
87d6f87a	188	struct list opaque_lsa_self; / Type-9 Opaque-LSAs */
718e3744	189	#endif /* HAVE_OPAQUE_LSA */
	190
	191	struct route_table *ls_upd_queue;
	192
52dc7ee6	193	struct list ls_ack; / Link State Acknowledgment list. */
718e3744	194
	195	struct
	196	{
52dc7ee6	197	struct list *ls_ack;
718e3744	198	struct in_addr dst;
	199	} ls_ack_direct;
	200
	201	/* Timer values. */
	202	u_int32_t v_ls_ack; /* Delayed Link State Acknowledgment */
	203
	204	/* Threads. */
	205	struct thread t_hello; / timer */
	206	struct thread t_wait; / timer */
	207	struct thread t_ls_ack; / timer */
	208	struct thread t_ls_ack_direct; / event */
	209	struct thread t_ls_upd_event; / event */
718e3744	210	#ifdef HAVE_OPAQUE_LSA
	211	struct thread t_opaque_lsa_self; / Type-9 Opaque-LSAs */
	212	#endif /* HAVE_OPAQUE_LSA */
	213
	214	int on_write_q;
	215
	216	/* Statistics fields. */
	217	u_int32_t hello_in; /* Hello message input count. */
	218	u_int32_t hello_out; /* Hello message output count. */
	219	u_int32_t db_desc_in; /* database desc. message input count. */
	220	u_int32_t db_desc_out; /* database desc. message output count. */
	221	u_int32_t ls_req_in; /* LS request message input count. */
	222	u_int32_t ls_req_out; /* LS request message output count. */
	223	u_int32_t ls_upd_in; /* LS update message input count. */
	224	u_int32_t ls_upd_out; /* LS update message output count. */
	225	u_int32_t ls_ack_in; /* LS Ack message input count. */
	226	u_int32_t ls_ack_out; /* LS Ack message output count. */
	227	u_int32_t discarded; /* discarded input count by error. */
	228	u_int32_t state_change; /* Number of status change. */
	229
2db3d05d	230	u_int32_t full_nbrs;
718e3744	231	};
	232
	233	/* Prototypes. */
4dadc291	234	extern char ospf_if_name (struct ospf_interface );
	235	extern struct ospf_interface ospf_if_new (struct ospf , struct interface *,
	236	struct prefix *);
	237	extern void ospf_if_cleanup (struct ospf_interface *);
	238	extern void ospf_if_free (struct ospf_interface *);
	239	extern int ospf_if_up (struct ospf_interface *);
	240	extern int ospf_if_down (struct ospf_interface *);
	241
	242	extern int ospf_if_is_up (struct ospf_interface *);
	243	extern struct ospf_interface ospf_if_exists (struct ospf_interface );
c81ee5c9 JT	244	extern struct ospf_interface ospf_if_lookup_by_lsa_pos (struct ospf_area ,
c81ee5c9 JT	245	int);
4dadc291	246	extern struct ospf_interface ospf_if_lookup_by_local_addr (struct ospf ,
	247	struct interface
	248	*,
	249	struct in_addr);
	250	extern struct ospf_interface ospf_if_lookup_by_prefix (struct ospf ,
	251	struct prefix_ipv4 *);
f0f63841 JT	252	extern struct ospf_interface ospf_if_table_lookup (struct interface ,
f0f63841 JT	253	struct prefix *);
4dadc291	254	extern struct ospf_interface *ospf_if_addr_local (struct in_addr);
4dadc291	255	extern struct ospf_interface ospf_if_lookup_recv_if (struct ospf ,
05cf46ba JT	256	struct in_addr,
05cf46ba JT	257	struct interface *);
4dadc291	258	extern struct ospf_interface ospf_if_is_configured (struct ospf ,
	259	struct in_addr *);
	260
	261	extern struct ospf_if_params ospf_lookup_if_params (struct interface ,
2db3d05d	262	struct in_addr);
4dadc291	263	extern struct ospf_if_params ospf_get_if_params (struct interface ,
	264	struct in_addr);
	265	extern void ospf_del_if_params (struct ospf_if_params *);
	266	extern void ospf_free_if_params (struct interface *, struct in_addr);
	267	extern void ospf_if_update_params (struct interface *, struct in_addr);
	268
	269	extern int ospf_if_new_hook (struct interface *);
	270	extern void ospf_if_init (void);
	271	extern void ospf_if_stream_set (struct ospf_interface *);
	272	extern void ospf_if_stream_unset (struct ospf_interface *);
	273	extern void ospf_if_reset_variables (struct ospf_interface *);
	274	extern int ospf_if_is_enable (struct ospf_interface *);
	275	extern int ospf_if_get_output_cost (struct ospf_interface *);
	276	extern void ospf_if_recalculate_output_cost (struct interface *);
718e3744	277
a608bbf2	278	/* Simulate down/up on the interface. */
	279	extern void ospf_if_reset (struct interface *);
	280
4dadc291	281	extern struct ospf_interface ospf_vl_new (struct ospf ,
	282	struct ospf_vl_data *);
	283	extern struct ospf_vl_data ospf_vl_data_new (struct ospf_area ,
	284	struct in_addr);
9c27ef9b	285	extern struct ospf_vl_data ospf_vl_lookup (struct ospf , struct ospf_area *,
4dadc291	286	struct in_addr);
	287	extern void ospf_vl_data_free (struct ospf_vl_data *);
	288	extern void ospf_vl_add (struct ospf , struct ospf_vl_data );
	289	extern void ospf_vl_delete (struct ospf , struct ospf_vl_data );
	290	extern void ospf_vl_up_check (struct ospf_area *, struct in_addr,
	291	struct vertex *);
	292	extern void ospf_vl_unapprove (struct ospf *);
	293	extern void ospf_vl_shut_unapproved (struct ospf *);
	294	extern int ospf_full_virtual_nbrs (struct ospf_area *);
	295	extern int ospf_vls_in_area (struct ospf_area *);
	296
	297	extern struct crypt_key ospf_crypt_key_lookup (struct list , u_char);
	298	extern struct crypt_key *ospf_crypt_key_new (void);
	299	extern void ospf_crypt_key_add (struct list , struct crypt_key );
	300	extern int ospf_crypt_key_delete (struct list *, u_char);
	301
	302	extern u_char ospf_default_iftype (struct interface *ifp);
bc18d616	303
ba6454ec	304	/* Set all multicast memberships appropriately based on the type and
ba6454ec	305	state of the interface. */
4dadc291	306	extern void ospf_if_set_multicast (struct ospf_interface *);
ba6454ec	307
718e3744	308	#endif /* _ZEBRA_OSPF_INTERFACE_H */