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Diffstat (limited to 'ospfd/ospf_neighbor.h')
| -rw-r--r-- | ospfd/ospf_neighbor.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/ospfd/ospf_neighbor.h b/ospfd/ospf_neighbor.h new file mode 100644 index 00000000..f7b18742 --- /dev/null +++ b/ospfd/ospf_neighbor.h @@ -0,0 +1,106 @@ +/* + * 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 route_table *, int); +#ifdef HAVE_OPAQUE_LSA +int ospf_opaque_capable_nbr_count (struct route_table *nbrs, int status); +#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 */ |