ospf_neighbor.h
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- /*
- * OSPF Neighbor functions.
- * Copyright (C) 1999, 2000 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_NEIGHBOR_H
- #define _ZEBRA_OSPF_NEIGHBOR_H
- /* Neighbor Data Structure */
- struct ospf_neighbor
- {
- /* This neighbor's parent ospf interface. */
- struct ospf_interface *oi;
- /* OSPF neighbor Information */
- u_char state; /* NSM status. */
- u_char dd_flags; /* DD bit flags. */
- u_int32_t dd_seqnum; /* DD Sequence Number. */
- /* Neighbor Information from Hello. */
- struct prefix address; /* Neighbor Interface Address. */
- struct in_addr src; /* Src address. */
- struct in_addr router_id; /* Router ID. */
- u_char options; /* Options. */
- int priority; /* Router Priority. */
- struct in_addr d_router; /* Designated Router. */
- struct in_addr bd_router; /* Backup Designated Router. */
- /* Last sent Database Description packet. */
- struct ospf_packet *last_send;
- /* Timestemp when last Database Description packet was sent */
- struct timeval last_send_ts;
- /* Last received Databse Description packet. */
- struct
- {
- u_char options;
- u_char flags;
- u_int32_t dd_seqnum;
- } last_recv;
- /* LSA data. */
- struct ospf_lsdb ls_rxmt;
- struct ospf_lsdb db_sum;
- struct ospf_lsdb ls_req;
- struct ospf_lsa *ls_req_last;
- u_int32_t crypt_seqnum; /* Cryptographic Sequence Number. */
- /* Timer values. */
- u_int32_t v_inactivity;
- u_int32_t v_db_desc;
- u_int32_t v_ls_req;
- u_int32_t v_ls_upd;
- /* Threads. */
- struct thread *t_inactivity;
- struct thread *t_db_desc;
- struct thread *t_ls_req;
- struct thread *t_ls_upd;
- struct thread *t_hello_reply;
- /* Statistics Field */
- u_int32_t state_change;
- struct ospf_nbr_nbma *nbr_nbma;
- };
- /* Macros. */
- #define NBR_IS_DR(n) IPV4_ADDR_SAME (&n->address.u.prefix4, &n->d_router)
- #define NBR_IS_BDR(n) IPV4_ADDR_SAME (&n->address.u.prefix4, &n->bd_router)
- /* Prototypes. */
- struct ospf_neighbor *ospf_nbr_new (struct ospf_interface *);
- void ospf_nbr_free (struct ospf_neighbor *);
- void ospf_nbr_delete (struct ospf_neighbor *);
- int ospf_nbr_bidirectional (struct in_addr *, struct in_addr *, int);
- void ospf_nbr_add_self (struct ospf_interface *);
- int ospf_nbr_count (struct ospf_interface *, int);
- #ifdef HAVE_OPAQUE_LSA
- int ospf_nbr_count_opaque_capable (struct ospf_interface *);
- #endif /* HAVE_OPAQUE_LSA */
- struct ospf_neighbor *ospf_nbr_lookup_by_addr (struct route_table *,
- struct in_addr *);
- struct ospf_neighbor *ospf_nbr_lookup_by_routerid (struct route_table *,
- struct in_addr *);
- void ospf_renegotiate_optional_capabilities (struct ospf *top);
- #endif /* _ZEBRA_OSPF_NEIGHBOR_H */