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Annotation of embedaddon/quagga/ospf6d/ospf6_area.h, revision 1.1.1.2

1.1       misho       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 OSPF_AREA_H
                     23: #define OSPF_AREA_H
                     24: 
                     25: #include "ospf6_top.h"
                     26: 
                     27: struct ospf6_area
                     28: {
                     29:   /* Reference to Top data structure */
                     30:   struct ospf6 *ospf6;
                     31: 
                     32:   /* Area-ID */
                     33:   u_int32_t area_id;
                     34: 
                     35:   /* Area-ID string */
                     36:   char name[16];
                     37: 
                     38:   /* flag */
                     39:   u_char flag;
                     40: 
                     41:   /* OSPF Option */
                     42:   u_char options[3];
                     43: 
                     44:   /* Summary routes to be originated (includes Configured Address Ranges) */
                     45:   struct ospf6_route_table *range_table;
                     46:   struct ospf6_route_table *summary_prefix;
                     47:   struct ospf6_route_table *summary_router;
                     48: 
                     49:   /* OSPF interface list */
                     50:   struct list *if_list;
                     51: 
                     52:   struct ospf6_lsdb *lsdb;
                     53:   struct ospf6_lsdb *lsdb_self;
                     54: 
                     55:   struct ospf6_route_table *spf_table;
                     56:   struct ospf6_route_table *route_table;
                     57: 
                     58:   struct thread  *thread_spf_calculation;
                     59:   struct thread  *thread_route_calculation;
1.1.1.2 ! misho      60:   u_int32_t spf_calculation;   /* SPF calculation count */
1.1       misho      61: 
                     62:   struct thread *thread_router_lsa;
                     63:   struct thread *thread_intra_prefix_lsa;
                     64:   u_int32_t router_lsa_size_limit;
                     65: 
                     66:   /* Area announce list */
                     67:   struct
                     68:   {
                     69:     char *name;
                     70:     struct access_list *list;
                     71:   } _export;
                     72: #define EXPORT_NAME(A)  (A)->_export.name
                     73: #define EXPORT_LIST(A)  (A)->_export.list
                     74: 
                     75:   /* Area acceptance list */
                     76:   struct
                     77:   {
                     78:     char *name;
                     79:     struct access_list *list;
                     80:   } import;
                     81: #define IMPORT_NAME(A)  (A)->import.name
                     82: #define IMPORT_LIST(A)  (A)->import.list
                     83: 
                     84:   /* Type 3 LSA Area prefix-list */
                     85:   struct
                     86:   {
                     87:     char *name;
                     88:     struct prefix_list *list;
                     89:   } plist_in;
                     90: #define PREFIX_NAME_IN(A)  (A)->plist_in.name
                     91: #define PREFIX_LIST_IN(A)  (A)->plist_in.list
                     92: 
                     93:   struct
                     94:   {
                     95:     char *name;
                     96:     struct prefix_list *list;
                     97:   } plist_out;
                     98: #define PREFIX_NAME_OUT(A)  (A)->plist_out.name
                     99: #define PREFIX_LIST_OUT(A)  (A)->plist_out.list
                    100: 
                    101: };
                    102: 
                    103: #define OSPF6_AREA_ENABLE     0x01
                    104: #define OSPF6_AREA_ACTIVE     0x02
                    105: #define OSPF6_AREA_TRANSIT    0x04 /* TransitCapability */
                    106: #define OSPF6_AREA_STUB       0x08
                    107: 
                    108: #define BACKBONE_AREA_ID (htonl (0))
                    109: #define IS_AREA_BACKBONE(oa) ((oa)->area_id == BACKBONE_AREA_ID)
                    110: #define IS_AREA_ENABLED(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ENABLE))
                    111: #define IS_AREA_ACTIVE(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ACTIVE))
                    112: #define IS_AREA_TRANSIT(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_TRANSIT))
                    113: #define IS_AREA_STUB(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_STUB))
                    114: 
                    115: /* prototypes */
                    116: extern int ospf6_area_cmp (void *va, void *vb);
                    117: 
                    118: extern struct ospf6_area *ospf6_area_create (u_int32_t, struct ospf6 *);
                    119: extern void ospf6_area_delete (struct ospf6_area *);
                    120: extern struct ospf6_area *ospf6_area_lookup (u_int32_t, struct ospf6 *);
                    121: 
                    122: extern void ospf6_area_enable (struct ospf6_area *);
                    123: extern void ospf6_area_disable (struct ospf6_area *);
                    124: 
                    125: extern void ospf6_area_show (struct vty *, struct ospf6_area *);
                    126: 
                    127: extern void ospf6_area_config_write (struct vty *vty);
                    128: extern void ospf6_area_init (void);
                    129: 
                    130: #endif /* OSPF_AREA_H */