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Annotation of embedaddon/quagga/ospfd/ospf_neighbor.h, revision 1.1.1.2

1.1       misho       1: /*
                      2:  * OSPF Neighbor functions.
                      3:  * Copyright (C) 1999, 2000 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_NEIGHBOR_H
                     24: #define _ZEBRA_OSPF_NEIGHBOR_H
                     25: 
                     26: #include <ospfd/ospf_packet.h>
                     27: 
                     28: /* Neighbor Data Structure */
                     29: struct ospf_neighbor
                     30: {
                     31:   /* This neighbor's parent ospf interface. */
                     32:   struct ospf_interface *oi;
                     33: 
                     34:   /* OSPF neighbor Information */
                     35:   u_char state;                                /* NSM status. */
                     36:   u_char dd_flags;                     /* DD bit flags. */
                     37:   u_int32_t dd_seqnum;                 /* DD Sequence Number. */
                     38: 
                     39:   /* Neighbor Information from Hello. */
                     40:   struct prefix address;               /* Neighbor Interface Address. */
                     41: 
                     42:   struct in_addr src;                  /* Src address. */
                     43:   struct in_addr router_id;            /* Router ID. */
                     44:   u_char options;                      /* Options. */
                     45:   int priority;                                /* Router Priority. */
                     46:   struct in_addr d_router;             /* Designated Router. */
                     47:   struct in_addr bd_router;            /* Backup Designated Router. */
                     48: 
                     49:   /* Last sent Database Description packet. */
                     50:   struct ospf_packet *last_send;
                     51:   /* Timestemp when last Database Description packet was sent */
                     52:   struct timeval last_send_ts;
                     53: 
                     54:   /* Last received Databse Description packet. */
                     55:   struct
                     56:   {
                     57:     u_char options;
                     58:     u_char flags;
                     59:     u_int32_t dd_seqnum;
                     60:   } last_recv;
                     61: 
                     62:   /* LSA data. */
                     63:   struct ospf_lsdb ls_rxmt;
                     64:   struct ospf_lsdb db_sum;
                     65:   struct ospf_lsdb ls_req;
                     66:   struct ospf_lsa *ls_req_last;
                     67: 
                     68:   u_int32_t crypt_seqnum;           /* Cryptographic Sequence Number. */
                     69: 
                     70:   /* Timer values. */
                     71:   u_int32_t v_inactivity;
                     72:   u_int32_t v_db_desc;
                     73:   u_int32_t v_ls_req;
                     74:   u_int32_t v_ls_upd;
                     75: 
                     76:   /* Threads. */
                     77:   struct thread *t_inactivity;
                     78:   struct thread *t_db_desc;
                     79:   struct thread *t_ls_req;
                     80:   struct thread *t_ls_upd;
                     81:   struct thread *t_hello_reply;
                     82: 
                     83:   /* NBMA configured neighbour */
                     84:   struct ospf_nbr_nbma *nbr_nbma;
                     85: 
                     86:   /* Statistics */
                     87:   struct timeval ts_last_progress;  /* last advance of NSM            */
                     88:   struct timeval ts_last_regress;   /* last regressive NSM change     */
                     89:   const char *last_regress_str;     /* Event which last regressed NSM */
                     90:   u_int32_t state_change;           /* NSM state change counter       */
                     91: };
                     92: 
                     93: /* Macros. */
                     94: #define NBR_IS_DR(n)   IPV4_ADDR_SAME (&n->address.u.prefix4, &n->d_router)
                     95: #define NBR_IS_BDR(n)   IPV4_ADDR_SAME (&n->address.u.prefix4, &n->bd_router)
                     96: 
                     97: /* Prototypes. */
                     98: extern struct ospf_neighbor *ospf_nbr_new (struct ospf_interface *);
                     99: extern void ospf_nbr_free (struct ospf_neighbor *);
                    100: extern void ospf_nbr_delete (struct ospf_neighbor *);
                    101: extern int ospf_nbr_bidirectional (struct in_addr *, struct in_addr *, int);
1.1.1.2 ! misho     102: extern void ospf_nbr_self_reset (struct ospf_interface *);
1.1       misho     103: extern void ospf_nbr_add_self (struct ospf_interface *);
                    104: extern int ospf_nbr_count (struct ospf_interface *, int);
                    105: extern int ospf_nbr_count_opaque_capable (struct ospf_interface *);
                    106: extern struct ospf_neighbor *ospf_nbr_get (struct ospf_interface *,
                    107:                                           struct ospf_header *,
                    108:                                           struct ip *, struct prefix *);
                    109: extern struct ospf_neighbor *ospf_nbr_lookup (struct ospf_interface *,
                    110:                                              struct ip *,
                    111:                                              struct ospf_header *);
                    112: extern struct ospf_neighbor *ospf_nbr_lookup_by_addr (struct route_table *,
                    113:                                                      struct in_addr *);
                    114: extern struct ospf_neighbor *ospf_nbr_lookup_by_routerid (struct route_table
                    115:                                                          *,
                    116:                                                          struct in_addr *);
                    117: extern void ospf_renegotiate_optional_capabilities (struct ospf *top);
                    118: 
                    119: #endif /* _ZEBRA_OSPF_NEIGHBOR_H */