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