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    1: /*
    2:  * Copyright (C) 2003 Yasuhiro Ohara
    3:  *
    4:  * This file is part of GNU Zebra.
    5:  *
    6:  * GNU Zebra is free software; you can redistribute it and/or modify it
    7:  * under the terms of the GNU General Public License as published by the
    8:  * Free Software Foundation; either version 2, or (at your option) any
    9:  * later version.
   10:  *
   11:  * GNU Zebra is distributed in the hope that it will be useful, but
   12:  * WITHOUT ANY WARRANTY; without even the implied warranty of
   13:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:  * General Public License for more details.
   15:  *
   16:  * You should have received a copy of the GNU General Public License
   17:  * along with GNU Zebra; see the file COPYING.  If not, write to the 
   18:  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
   19:  * Boston, MA 02111-1307, USA.  
   20:  */
   21: 
   22: #ifndef OSPF6_NEIGHBOR_H
   23: #define OSPF6_NEIGHBOR_H
   24: 
   25: /* Debug option */
   26: extern unsigned char conf_debug_ospf6_neighbor;
   27: #define OSPF6_DEBUG_NEIGHBOR_STATE   0x01
   28: #define OSPF6_DEBUG_NEIGHBOR_EVENT   0x02
   29: #define OSPF6_DEBUG_NEIGHBOR_ON(level) \
   30:   (conf_debug_ospf6_neighbor |= (level))
   31: #define OSPF6_DEBUG_NEIGHBOR_OFF(level) \
   32:   (conf_debug_ospf6_neighbor &= ~(level))
   33: #define IS_OSPF6_DEBUG_NEIGHBOR(level) \
   34:   (conf_debug_ospf6_neighbor & OSPF6_DEBUG_NEIGHBOR_ ## level)
   35: 
   36: /* Neighbor structure */
   37: struct ospf6_neighbor
   38: {
   39:   /* Neighbor Router ID String */
   40:   char name[32];
   41: 
   42:   /* OSPFv3 Interface this neighbor belongs to */
   43:   struct ospf6_interface *ospf6_if;
   44: 
   45:   /* Neighbor state */
   46:   u_char state;
   47: 
   48:   /* timestamp of last changing state */
   49:   struct timeval last_changed;
   50: 
   51:   /* Neighbor Router ID */
   52:   u_int32_t router_id;
   53: 
   54:   /* Neighbor Interface ID */
   55:   u_int32_t ifindex;
   56: 
   57:   /* Router Priority of this neighbor */
   58:   u_char priority;
   59: 
   60:   u_int32_t drouter;
   61:   u_int32_t bdrouter;
   62:   u_int32_t prev_drouter;
   63:   u_int32_t prev_bdrouter;
   64: 
   65:   /* Options field (Capability) */
   66:   char options[3];
   67: 
   68:   /* IPaddr of I/F on our side link */
   69:   struct in6_addr linklocal_addr;
   70: 
   71:   /* For Database Exchange */
   72:   u_char               dbdesc_bits;
   73:   u_int32_t            dbdesc_seqnum;
   74:   /* Last received Database Description packet */
   75:   struct ospf6_dbdesc  dbdesc_last;
   76: 
   77:   /* LS-list */
   78:   struct ospf6_lsdb *summary_list;
   79:   struct ospf6_lsdb *request_list;
   80:   struct ospf6_lsdb *retrans_list;
   81: 
   82:   /* LSA list for message transmission */
   83:   struct ospf6_lsdb *dbdesc_list;
   84:   struct ospf6_lsdb *lsreq_list;
   85:   struct ospf6_lsdb *lsupdate_list;
   86:   struct ospf6_lsdb *lsack_list;
   87: 
   88:   /* Inactivity timer */
   89:   struct thread *inactivity_timer;
   90: 
   91:   /* Thread for sending message */
   92:   struct thread *thread_send_dbdesc;
   93:   struct thread *thread_send_lsreq;
   94:   struct thread *thread_send_lsupdate;
   95:   struct thread *thread_send_lsack;
   96: };
   97: 
   98: /* Neighbor state */
   99: #define OSPF6_NEIGHBOR_DOWN     1
  100: #define OSPF6_NEIGHBOR_ATTEMPT  2
  101: #define OSPF6_NEIGHBOR_INIT     3
  102: #define OSPF6_NEIGHBOR_TWOWAY   4
  103: #define OSPF6_NEIGHBOR_EXSTART  5
  104: #define OSPF6_NEIGHBOR_EXCHANGE 6
  105: #define OSPF6_NEIGHBOR_LOADING  7
  106: #define OSPF6_NEIGHBOR_FULL     8
  107: 
  108: extern const char *ospf6_neighbor_state_str[];
  109: 
  110: 
  111: /* Function Prototypes */
  112: int ospf6_neighbor_cmp (void *va, void *vb);
  113: void ospf6_neighbor_dbex_init (struct ospf6_neighbor *on);
  114: 
  115: struct ospf6_neighbor *ospf6_neighbor_lookup (u_int32_t,
  116:                                               struct ospf6_interface *);
  117: struct ospf6_neighbor *ospf6_neighbor_create (u_int32_t,
  118:                                               struct ospf6_interface *);
  119: void ospf6_neighbor_delete (struct ospf6_neighbor *);
  120: 
  121: /* Neighbor event */
  122: extern int hello_received (struct thread *);
  123: extern int twoway_received (struct thread *);
  124: extern int negotiation_done (struct thread *);
  125: extern int exchange_done (struct thread *);
  126: extern int loading_done (struct thread *);
  127: extern int adj_ok (struct thread *);
  128: extern int seqnumber_mismatch (struct thread *);
  129: extern int bad_lsreq (struct thread *);
  130: extern int oneway_received (struct thread *);
  131: extern int inactivity_timer (struct thread *);
  132: 
  133: extern void ospf6_neighbor_init (void);
  134: extern int config_write_ospf6_debug_neighbor (struct vty *vty);
  135: extern void install_element_ospf6_debug_neighbor (void);
  136: 
  137: #endif /* OSPF6_NEIGHBOR_H */