ospfd/ospfd.h

   1 /*
   2  * OSPFd main header.
   3  * Copyright (C) 1998, 99, 2000 Kunihiro Ishiguro, 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 it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * 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 Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  */
  22
  23 #ifndef _ZEBRA_OSPFD_H
  24 #define _ZEBRA_OSPFD_H
  25
  26 #include "filter.h"
  27
  28 #define OSPF_VERSION            2
  29
  30 /* Default protocol, port number. */
  31 #ifndef IPPROTO_OSPFIGP
  32 #define IPPROTO_OSPFIGP         89
  33 #endif /* IPPROTO_OSPFIGP */
  34
  35 /* IP precedence. */
  36 #ifndef IPTOS_PREC_INTERNETCONTROL
  37 #define IPTOS_PREC_INTERNETCONTROL      0xC0
  38 #endif /* IPTOS_PREC_INTERNETCONTROL */
  39
  40 /* VTY port number. */
  41 #define OSPF_VTY_PORT          2604
  42
  43 /* IP TTL for OSPF protocol. */
  44 #define OSPF_IP_TTL             1
  45 #define OSPF_VL_IP_TTL          100
  46
  47 /* Default configuration file name for ospfd. */
  48 #define OSPF_DEFAULT_CONFIG   "ospfd.conf"
  49
  50 /* Architectual Constants */
  51 #ifdef DEBUG
  52 #define OSPF_LS_REFRESH_TIME                    60
  53 #else
  54 #define OSPF_LS_REFRESH_TIME                  1800
  55 #endif
  56 #define OSPF_MIN_LS_INTERVAL                     5
  57 #define OSPF_MIN_LS_ARRIVAL                      1
  58 #define OSPF_LSA_MAXAGE                       3600
  59 #define OSPF_CHECK_AGE                         300
  60 #define OSPF_LSA_MAXAGE_DIFF                   900
  61 #define OSPF_LS_INFINITY                  0xffffff
  62 #define OSPF_DEFAULT_DESTINATION        0x00000000      /* 0.0.0.0 */
  63 #define OSPF_INITIAL_SEQUENCE_NUMBER    0x80000001
  64 #define OSPF_MAX_SEQUENCE_NUMBER        0x7fffffff
  65
  66 #define OSPF_LSA_MAXAGE_CHECK_INTERVAL          30
  67
  68 #define OSPF_ALLSPFROUTERS              0xe0000005      /* 224.0.0.5 */
  69 #define OSPF_ALLDROUTERS                0xe0000006      /* 224.0.0.6 */
  70
  71 #ifdef HAVE_NSSA
  72 #define OSPF_LOOPer                     0x7f000000      /* 127.0.0.0 */
  73 #endif /* HAVE_NSSA */
  74
  75 #define OSPF_AREA_BACKBONE              0x00000000      /* 0.0.0.0 */
  76
  77 /* OSPF Authentication Type. */
  78 #define OSPF_AUTH_NULL                      0
  79 #define OSPF_AUTH_SIMPLE                    1
  80 #define OSPF_AUTH_CRYPTOGRAPHIC             2
  81 /* For Interface authentication setting default */
  82 #define OSPF_AUTH_NOTSET                   -1
  83 /* For the consumption and sanity of the command handler */
  84 /* DO NIOT REMOVE!!! Need to detect whether a value has
  85    been given or not in VLink command handlers */
  86 #define OSPF_AUTH_CMD_NOTSEEN              -2
  87
  88 /* OSPF SPF timer values. */
  89 #define OSPF_SPF_DELAY_DEFAULT              1
  90 #define OSPF_SPF_HOLDTIME_DEFAULT           1
  91
  92 /* OSPF interface default values. */
  93 #define OSPF_OUTPUT_COST_DEFAULT           10
  94 #define OSPF_ROUTER_DEAD_INTERVAL_DEFAULT  40
  95 #define OSPF_HELLO_INTERVAL_DEFAULT        10
  96 #define OSPF_ROUTER_PRIORITY_DEFAULT        1
  97 #define OSPF_RETRANSMIT_INTERVAL_DEFAULT    5
  98 #define OSPF_TRANSMIT_DELAY_DEFAULT         1
  99 #define OSPF_DEFAULT_BANDWIDTH           10000  /* Kbps */
 100
 101 #define OSPF_DEFAULT_REF_BANDWIDTH      100000  /* Kbps */
 102
 103 #define OSPF_POLL_INTERVAL_DEFAULT         60
 104 #define OSPF_NEIGHBOR_PRIORITY_DEFAULT      0
 105
 106 /* OSPF options. */
 107 #define OSPF_OPTION_T                    0x01  /* TOS. */
 108 #define OSPF_OPTION_E                    0x02
 109 #define OSPF_OPTION_MC                   0x04
 110 #define OSPF_OPTION_NP                   0x08
 111 #define OSPF_OPTION_EA                   0x10
 112 #define OSPF_OPTION_DC                   0x20
 113 #define OSPF_OPTION_O                    0x40
 114
 115 /* OSPF Database Description flags. */
 116 #define OSPF_DD_FLAG_MS                  0x01
 117 #define OSPF_DD_FLAG_M                   0x02
 118 #define OSPF_DD_FLAG_I                   0x04
 119 #define OSPF_DD_FLAG_ALL                 0x07
 120
 121 /* Timer value. */
 122 #define OSPF_ROUTER_ID_UPDATE_DELAY             1
 123
 124 #define OSPF_LS_REFRESH_SHIFT       (60 * 15)
 125 #define OSPF_LS_REFRESH_JITTER      60
 126
 127 /* OSPF master for system wide configuration and variables. */
 128 struct ospf_master
 129 {
 130   /* OSPF instance. */
 131   struct list *ospf;
 132
 133   /* OSPF thread master. */
 134   struct thread_master *master;
 135
 136   /* Zebra interface list. */
 137   struct list *iflist;
 138
 139   /* Redistributed external information. */
 140   struct route_table *external_info[ZEBRA_ROUTE_MAX + 1];
 141 #define EXTERNAL_INFO(T)      om->external_info[T]
 142
 143   /* OSPF start time. */
 144   time_t start_time;
 145
 146   /* Various OSPF global configuration. */
 147   u_char options;
 148 };
 149
 150 /* OSPF instance structure. */
 151 struct ospf
 152 {
 153   /* OSPF Router ID. */
 154   struct in_addr router_id;             /* Configured automatically. */
 155   struct in_addr router_id_static;      /* Configured manually. */
 156
 157   /* ABR/ASBR internal flags. */
 158   u_char flags;
 159 #define OSPF_FLAG_ABR           0x0001
 160 #define OSPF_FLAG_ASBR          0x0002
 161
 162   /* ABR type. */
 163   u_char abr_type;
 164 #define OSPF_ABR_UNKNOWN        0
 165 #define OSPF_ABR_STAND          1
 166 #define OSPF_ABR_IBM            2
 167 #define OSPF_ABR_CISCO          3
 168 #define OSPF_ABR_SHORTCUT       4
 169
 170   /* NSSA ABR */
 171   u_char anyNSSA;               /* Bump for every NSSA attached. */
 172
 173   /* Configured variables. */
 174   u_char config;
 175 #define OSPF_RFC1583_COMPATIBLE         (1 << 0)
 176 #define OSPF_OPAQUE_CAPABLE             (1 << 2)
 177
 178 #ifdef HAVE_OPAQUE_LSA
 179   /* Opaque-LSA administrative flags. */
 180   u_char opaque;
 181 #define OPAQUE_OPERATION_READY_BIT      (1 << 0)
 182 #define OPAQUE_BLOCK_TYPE_09_LSA_BIT    (1 << 1)
 183 #define OPAQUE_BLOCK_TYPE_10_LSA_BIT    (1 << 2)
 184 #define OPAQUE_BLOCK_TYPE_11_LSA_BIT    (1 << 3)
 185 #endif /* HAVE_OPAQUE_LSA */
 186
 187   int spf_delay;                        /* SPF delay time. */
 188   int spf_holdtime;                     /* SPF hold time. */
 189   int default_originate;                /* Default information originate. */
 190 #define DEFAULT_ORIGINATE_NONE          0
 191 #define DEFAULT_ORIGINATE_ZEBRA         1
 192 #define DEFAULT_ORIGINATE_ALWAYS        2
 193   u_int32_t ref_bandwidth;              /* Reference Bandwidth (Kbps). */
 194   struct route_table *networks;         /* OSPF config networks. */
 195   list vlinks;                          /* Configured Virtual-Links. */
 196   list areas;                           /* OSPF areas. */
 197   struct route_table *nbr_nbma;
 198   struct ospf_area *backbone;           /* Pointer to the Backbone Area. */
 199
 200   list oiflist;                         /* ospf interfaces */
 201
 202   /* LSDB of AS-external-LSAs. */
 203   struct ospf_lsdb *lsdb;
 204
 205   /* Flags. */
 206   int external_origin;                  /* AS-external-LSA origin flag. */
 207   int ase_calc;                         /* ASE calculation flag. */
 208
 209 #ifdef HAVE_OPAQUE_LSA
 210   list opaque_lsa_self;                 /* Type-11 Opaque-LSAs */
 211 #endif /* HAVE_OPAQUE_LSA */
 212
 213   /* Routing tables. */
 214   struct route_table *old_table;        /* Old routing table. */
 215   struct route_table *new_table;        /* Current routing table. */
 216
 217   struct route_table *old_rtrs;         /* Old ABR/ASBR RT. */
 218   struct route_table *new_rtrs;         /* New ABR/ASBR RT. */
 219
 220   struct route_table *new_external_route;   /* New External Route. */
 221   struct route_table *old_external_route;   /* Old External Route. */
 222
 223   struct route_table *external_lsas;    /* Database of external LSAs,
 224                                            prefix is LSA's adv. network*/
 225
 226   /* Time stamps. */
 227   time_t ts_spf;                        /* SPF calculation time stamp. */
 228
 229   list maxage_lsa;                      /* List of MaxAge LSA for deletion. */
 230   int redistribute;                     /* Num of redistributed protocols. */
 231
 232   /* Threads. */
 233   struct thread *t_router_id_update;    /* Router ID update timer. */
 234   struct thread *t_router_lsa_update;   /* router-LSA update timer. */
 235   struct thread *t_abr_task;            /* ABR task timer. */
 236   struct thread *t_asbr_check;          /* ASBR check timer. */
 237   struct thread *t_distribute_update;   /* Distirbute list update timer. */
 238   struct thread *t_spf_calc;            /* SPF calculation timer. */
 239   struct thread *t_ase_calc;            /* ASE calculation timer. */
 240   struct thread *t_external_lsa;        /* AS-external-LSA origin timer. */
 241 #ifdef HAVE_OPAQUE_LSA
 242   struct thread *t_opaque_lsa_self;     /* Type-11 Opaque-LSAs origin event. */
 243 #endif /* HAVE_OPAQUE_LSA */
 244   struct thread *t_maxage;              /* MaxAge LSA remover timer. */
 245   struct thread *t_maxage_walker;       /* MaxAge LSA checking timer. */
 246
 247   struct thread *t_write;
 248   struct thread *t_read;
 249   int fd;
 250   list oi_write_q;
 251
 252   /* Distribute lists out of other route sources. */
 253   struct
 254   {
 255     char *name;
 256     struct access_list *list;
 257   } dlist[ZEBRA_ROUTE_MAX];
 258 #define DISTRIBUTE_NAME(O,T)    (O)->dlist[T].name
 259 #define DISTRIBUTE_LIST(O,T)    (O)->dlist[T].list
 260
 261   /* Redistribute metric info. */
 262   struct
 263   {
 264     int type;                   /* External metric type (E1 or E2).  */
 265     int value;                  /* Value for static metric (24-bit).
 266                                    -1 means metric value is not set. */
 267   } dmetric [ZEBRA_ROUTE_MAX + 1];
 268
 269   /* For redistribute route map. */
 270   struct
 271   {
 272     char *name;
 273     struct route_map *map;
 274   } route_map [ZEBRA_ROUTE_MAX + 1]; /* +1 is for default-information */
 275 #define ROUTEMAP_NAME(O,T)   (O)->route_map[T].name
 276 #define ROUTEMAP(O,T)        (O)->route_map[T].map
 277
 278   int default_metric;           /* Default metric for redistribute. */
 279
 280 #define OSPF_LSA_REFRESHER_GRANULARITY 10
 281 #define OSPF_LSA_REFRESHER_SLOTS ((OSPF_LS_REFRESH_TIME + \
 282                                   OSPF_LS_REFRESH_SHIFT)/10 + 1)
 283   struct
 284   {
 285     u_int16_t index;
 286     list qs[OSPF_LSA_REFRESHER_SLOTS];
 287   } lsa_refresh_queue;
 288
 289   struct thread *t_lsa_refresher;
 290   time_t lsa_refresher_started;
 291 #define OSPF_LSA_REFRESH_INTERVAL_DEFAULT 10
 292   u_int16_t lsa_refresh_interval;
 293
 294   /* Distance parameter. */
 295   u_char distance_all;
 296   u_char distance_intra;
 297   u_char distance_inter;
 298   u_char distance_external;
 299
 300   /* Statistics for LSA origination. */
 301   u_int32_t lsa_originate_count;
 302
 303   /* Statistics for LSA used for new instantiation. */
 304   u_int32_t rx_lsa_count;
 305
 306   struct route_table *distance_table;
 307 };
 308
 309 /* OSPF area structure. */
 310 struct ospf_area
 311 {
 312   /* OSPF instance. */
 313   struct ospf *ospf;
 314
 315   /* Zebra interface list belonging to the area. */
 316   list oiflist;
 317
 318   /* Area ID. */
 319   struct in_addr area_id;
 320
 321   /* Area ID format. */
 322   char format;
 323 #define OSPF_AREA_ID_FORMAT_ADDRESS         1
 324 #define OSPF_AREA_ID_FORMAT_DECIMAL         2
 325
 326   /* Address range. */
 327   list address_range;
 328
 329   /* Configured variables. */
 330   int external_routing;                 /* ExternalRoutingCapability. */
 331 #define OSPF_AREA_DEFAULT       0
 332 #define OSPF_AREA_STUB          1
 333 #define OSPF_AREA_NSSA          2
 334 #define OSPF_AREA_TYPE_MAX      3
 335   int no_summary;                       /* Don't inject summaries into stub.*/
 336   int shortcut_configured;              /* Area configured as shortcut. */
 337 #define OSPF_SHORTCUT_DEFAULT   0
 338 #define OSPF_SHORTCUT_ENABLE    1
 339 #define OSPF_SHORTCUT_DISABLE   2
 340   int shortcut_capability;              /* Other ABRs agree on S-bit */
 341   u_int32_t default_cost;               /* StubDefaultCost. */
 342   int auth_type;                        /* Authentication type. */
 343
 344   u_char NSSATranslatorRole;          /* NSSA Role during configuration */
 345 #define OSPF_NSSA_ROLE_NEVER     0
 346 #define OSPF_NSSA_ROLE_ALWAYS    1
 347 #define OSPF_NSSA_ROLE_CANDIDATE 2
 348   u_char NSSATranslator;              /* NSSA Role after election process */
 349
 350   u_char transit;                       /* TransitCapability. */
 351 #define OSPF_TRANSIT_FALSE      0
 352 #define OSPF_TRANSIT_TRUE       1
 353   struct route_table *ranges;           /* Configured Area Ranges. */
 354
 355   /* Area related LSDBs[Type1-4]. */
 356   struct ospf_lsdb *lsdb;
 357
 358   /* Self-originated LSAs. */
 359   struct ospf_lsa *router_lsa_self;
 360 #ifdef HAVE_OPAQUE_LSA
 361   list opaque_lsa_self;                 /* Type-10 Opaque-LSAs */
 362 #endif /* HAVE_OPAQUE_LSA */
 363
 364   /* Area announce list. */
 365   struct
 366   {
 367     char *name;
 368     struct access_list *list;
 369   } export;
 370 #define EXPORT_NAME(A)  (A)->export.name
 371 #define EXPORT_LIST(A)  (A)->export.list
 372
 373   /* Area acceptance list. */
 374   struct
 375   {
 376     char *name;
 377     struct access_list *list;
 378   } import;
 379 #define IMPORT_NAME(A)  (A)->import.name
 380 #define IMPORT_LIST(A)  (A)->import.list
 381
 382   /* Type 3 LSA Area prefix-list. */
 383   struct
 384   {
 385     char *name;
 386     struct prefix_list *list;
 387   } plist_in;
 388 #define PREFIX_LIST_IN(A)   (A)->plist_in.list
 389 #define PREFIX_NAME_IN(A)   (A)->plist_in.name
 390
 391   struct
 392   {
 393     char *name;
 394     struct prefix_list *list;
 395   } plist_out;
 396 #define PREFIX_LIST_OUT(A)  (A)->plist_out.list
 397 #define PREFIX_NAME_OUT(A)  (A)->plist_out.name
 398
 399   /* Shortest Path Tree. */
 400   struct vertex *spf;
 401
 402   /* Threads. */
 403   struct thread *t_router_lsa_self;/* Self-originated router-LSA timer. */
 404 #ifdef HAVE_OPAQUE_LSA
 405   struct thread *t_opaque_lsa_self;     /* Type-10 Opaque-LSAs origin. */
 406 #endif /* HAVE_OPAQUE_LSA */
 407
 408   /* Statistics field. */
 409   u_int32_t spf_calculation;    /* SPF Calculation Count. */
 410
 411   /* Router count. */
 412   u_int32_t abr_count;          /* ABR router in this area. */
 413   u_int32_t asbr_count;         /* ASBR router in this area. */
 414
 415   /* Counters. */
 416   u_int32_t act_ints;           /* Active interfaces. */
 417   u_int32_t full_nbrs;          /* Fully adjacent neighbors. */
 418   u_int32_t full_vls;           /* Fully adjacent virtual neighbors. */
 419 };
 420
 421 /* OSPF config network structure. */
 422 struct ospf_network
 423 {
 424   /* Area ID. */
 425   struct in_addr area_id;
 426   int format;
 427 };
 428
 429 /* OSPF NBMA neighbor structure. */
 430 struct ospf_nbr_nbma
 431 {
 432   /* Neighbor IP address. */
 433   struct in_addr addr;
 434
 435   /* OSPF interface. */
 436   struct ospf_interface *oi;
 437
 438   /* OSPF neighbor structure. */
 439   struct ospf_neighbor *nbr;
 440
 441   /* Neighbor priority. */
 442   u_char priority;
 443
 444   /* Poll timer value. */
 445   u_int32_t v_poll;
 446
 447   /* Poll timer thread. */
 448   struct thread *t_poll;
 449
 450   /* State change. */
 451   u_int32_t state_change;
 452 };
 453
 454 /* Macro. */
 455 #define OSPF_AREA_SAME(X,Y) \
 456         (memcmp ((X->area_id), (Y->area_id), IPV4_MAX_BYTELEN) == 0)
 457
 458 #define IS_OSPF_ABR(O)          ((O)->flags & OSPF_FLAG_ABR)
 459 #define IS_OSPF_ASBR(O)         ((O)->flags & OSPF_FLAG_ASBR)
 460
 461 #define OSPF_IS_AREA_ID_BACKBONE(I) ((I).s_addr == OSPF_AREA_BACKBONE)
 462 #define OSPF_IS_AREA_BACKBONE(A) OSPF_IS_AREA_ID_BACKBONE ((A)->area_id)
 463
 464 #ifdef roundup
 465 #  define ROUNDUP(val, gran)    roundup(val, gran)
 466 #else /* roundup */
 467 #  define ROUNDUP(val, gran)    (((val) - 1 | (gran) - 1) + 1)
 468 #endif /* roundup */
 469
 470 #define LSA_OPTIONS_GET(area) \
 471         (((area)->external_routing == OSPF_AREA_DEFAULT) ? OSPF_OPTION_E : 0)
 472 #ifdef HAVE_NSSA
 473 #define LSA_NSSA_GET(area) \
 474         (((area)->external_routing == OSPF_AREA_NSSA) ? \
 475           (area)->NSSATranslator : 0)
 476 #endif /* HAVE_NSSA */
 477
 478 #define OSPF_TIMER_ON(T,F,V)                                                  \
 479     do {                                                                      \
 480       if (!(T))                                                               \
 481         (T) = thread_add_timer (master, (F), ospf, (V));                      \
 482     } while (0)
 483
 484 #define OSPF_AREA_TIMER_ON(T,F,V)                                             \
 485     do {                                                                      \
 486       if (!(T))                                                               \
 487         (T) = thread_add_timer (master, (F), area, (V));                      \
 488     } while (0)
 489
 490 #define OSPF_POLL_TIMER_ON(T,F,V)                                             \
 491     do {                                                                      \
 492       if (!(T))                                                               \
 493         (T) = thread_add_timer (master, (F), nbr_nbma, (V));                  \
 494     } while (0)
 495
 496 #define OSPF_POLL_TIMER_OFF(X)          OSPF_TIMER_OFF((X))
 497
 498 #define OSPF_TIMER_OFF(X)                                                     \
 499     do {                                                                      \
 500       if (X)                                                                  \
 501         {                                                                     \
 502           thread_cancel (X);                                                  \
 503           (X) = NULL;                                                         \
 504         }                                                                     \
 505     } while (0)
 506
 507 /* Extern variables. */
 508 extern struct ospf_master *om;
 509 extern struct message ospf_ism_state_msg[];
 510 extern struct message ospf_nsm_state_msg[];
 511 extern struct message ospf_lsa_type_msg[];
 512 extern struct message ospf_link_state_id_type_msg[];
 513 extern struct message ospf_redistributed_proto[];
 514 extern struct message ospf_network_type_msg[];
 515 extern int ospf_ism_state_msg_max;
 516 extern int ospf_nsm_state_msg_max;
 517 extern int ospf_lsa_type_msg_max;
 518 extern int ospf_link_state_id_type_msg_max;
 519 extern int ospf_redistributed_proto_max;
 520 extern int ospf_network_type_msg_max;
 521 extern struct zclient *zclient;
 522 extern struct thread_master *master;
 523 extern int ospf_zlog;
 524
 525 /* Prototypes. */
 526 struct ospf *ospf_lookup ();
 527 struct ospf *ospf_get ();
 528 void ospf_finish (struct ospf *);
 529 int ospf_router_id_update_timer (struct thread *);
 530 void ospf_router_id_update ();
 531 int ospf_network_match_iface (struct connected *, struct prefix *);
 532 int ospf_network_set (struct ospf *, struct prefix_ipv4 *, struct in_addr);
 533 int ospf_network_unset (struct ospf *, struct prefix_ipv4 *, struct in_addr);
 534 int ospf_area_stub_set (struct ospf *, struct in_addr);
 535 int ospf_area_stub_unset (struct ospf *, struct in_addr);
 536 int ospf_area_no_summary_set (struct ospf *, struct in_addr);
 537 int ospf_area_no_summary_unset (struct ospf *, struct in_addr);
 538 int ospf_area_nssa_set (struct ospf *, struct in_addr);
 539 int ospf_area_nssa_unset (struct ospf *, struct in_addr);
 540 int ospf_area_nssa_translator_role_set (struct ospf *, struct in_addr, int);
 541 int ospf_area_export_list_set (struct ospf *, struct ospf_area *, char *);
 542 int ospf_area_export_list_unset (struct ospf *, struct ospf_area *);
 543 int ospf_area_import_list_set (struct ospf *, struct ospf_area *, char *);
 544 int ospf_area_import_list_unset (struct ospf *, struct ospf_area *);
 545 int ospf_area_shortcut_set (struct ospf *, struct ospf_area *, int);
 546 int ospf_area_shortcut_unset (struct ospf *, struct ospf_area *);
 547 int ospf_timers_spf_set (struct ospf *, u_int32_t, u_int32_t);
 548 int ospf_timers_spf_unset (struct ospf *);
 549 int ospf_timers_refresh_set (struct ospf *, int);
 550 int ospf_timers_refresh_unset (struct ospf *);
 551 int ospf_nbr_nbma_set (struct ospf *, struct in_addr);
 552 int ospf_nbr_nbma_unset (struct ospf *, struct in_addr);
 553 int ospf_nbr_nbma_priority_set (struct ospf *, struct in_addr, u_char);
 554 int ospf_nbr_nbma_priority_unset (struct ospf *, struct in_addr);
 555 int ospf_nbr_nbma_poll_interval_set (struct ospf *, struct in_addr, int);
 556 int ospf_nbr_nbma_poll_interval_unset (struct ospf *, struct in_addr);
 557 void ospf_prefix_list_update (struct prefix_list *);
 558 void ospf_init ();
 559 void ospf_if_update (struct ospf *);
 560 void ospf_ls_upd_queue_empty (struct ospf_interface *);
 561 void ospf_terminate ();
 562 void ospf_nbr_nbma_if_update (struct ospf *, struct ospf_interface *);
 563 struct ospf_nbr_nbma *ospf_nbr_nbma_lookup (struct ospf *, struct in_addr);
 564 struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next (struct ospf *,
 565                                                  struct in_addr *, int);
 566 int ospf_oi_count (struct interface *);
 567
 568 struct ospf_area *ospf_area_get (struct ospf *, struct in_addr, int);
 569 void ospf_area_check_free (struct ospf *, struct in_addr);
 570 struct ospf_area *ospf_area_lookup_by_area_id (struct ospf *, struct in_addr);
 571 void ospf_area_add_if (struct ospf_area *, struct ospf_interface *);
 572 void ospf_area_del_if (struct ospf_area *, struct ospf_interface *);
 573
 574 void ospf_route_map_init ();
 575 void ospf_snmp_init ();
 576
 577 void ospf_master_init ();
 578
 579 #endif /* _ZEBRA_OSPFD_H */