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 along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef _ZEBRA_OSPFD_H
  23 #define _ZEBRA_OSPFD_H
  24
  25 #include <zebra.h>
  26 #include "qobj.h"
  27 #include "libospf.h"
  28 #include "ldp_sync.h"
  29
  30 #include "filter.h"
  31 #include "log.h"
  32 #include "vrf.h"
  33
  34 #include "ospf_memory.h"
  35 #include "ospf_dump_api.h"
  36
  37 #define OSPF_VERSION            2
  38
  39 /* VTY port number. */
  40 #define OSPF_VTY_PORT          2604
  41
  42 /* IP TTL for OSPF protocol. */
  43 #define OSPF_IP_TTL             1
  44 #define OSPF_VL_IP_TTL          100
  45
  46 /* Default configuration file name for ospfd. */
  47 #define OSPF_DEFAULT_CONFIG   "ospfd.conf"
  48
  49 #define OSPF_NSSA_TRANS_STABLE_DEFAULT          40
  50
  51 #define OSPF_ALLSPFROUTERS              0xe0000005      /* 224.0.0.5 */
  52 #define OSPF_ALLDROUTERS                0xe0000006      /* 224.0.0.6 */
  53
  54 /* OSPF Authentication Type. */
  55 #define OSPF_AUTH_NULL                      0
  56 #define OSPF_AUTH_SIMPLE                    1
  57 #define OSPF_AUTH_CRYPTOGRAPHIC             2
  58 /* For Interface authentication setting default */
  59 #define OSPF_AUTH_NOTSET                   -1
  60 /* For the consumption and sanity of the command handler */
  61 /* DO NIOT REMOVE!!! Need to detect whether a value has
  62    been given or not in VLink command handlers */
  63 #define OSPF_AUTH_CMD_NOTSEEN              -2
  64
  65 /* OSPF options. */
  66 #define OSPF_OPTION_MT                   0x01  /* M/T */
  67 #define OSPF_OPTION_E                    0x02
  68 #define OSPF_OPTION_MC                   0x04
  69 #define OSPF_OPTION_NP                   0x08
  70 #define OSPF_OPTION_EA                   0x10
  71 #define OSPF_OPTION_DC                   0x20
  72 #define OSPF_OPTION_O                    0x40
  73 #define OSPF_OPTION_DN                   0x80
  74
  75 /* OSPF Database Description flags. */
  76 #define OSPF_DD_FLAG_MS                  0x01
  77 #define OSPF_DD_FLAG_M                   0x02
  78 #define OSPF_DD_FLAG_I                   0x04
  79 #define OSPF_DD_FLAG_ALL                 0x07
  80
  81 #define OSPF_LS_REFRESH_SHIFT       (60 * 15)
  82 #define OSPF_LS_REFRESH_JITTER      60
  83
  84 struct ospf_external {
  85         unsigned short instance;
  86         struct route_table *external_info;
  87 };
  88
  89 /* OSPF master for system wide configuration and variables. */
  90 struct ospf_master {
  91         /* OSPF instance. */
  92         struct list *ospf;
  93
  94         /* OSPF thread master. */
  95         struct thread_master *master;
  96
  97         /* Various OSPF global configuration. */
  98         uint8_t options;
  99 #define OSPF_MASTER_SHUTDOWN (1 << 0) /* deferred-shutdown */
 100 };
 101
 102 struct ospf_redist {
 103         unsigned short instance;
 104
 105         /* Redistribute metric info. */
 106         struct {
 107                 int type;  /* External metric type (E1 or E2).  */
 108                 int value; /* Value for static metric (24-bit).
 109                               -1 means metric value is not set. */
 110         } dmetric;
 111
 112         /* For redistribute route map. */
 113         struct {
 114                 char *name;
 115                 struct route_map *map;
 116         } route_map; /* +1 is for default-information */
 117 #define ROUTEMAP_NAME(R)   (R->route_map.name)
 118 #define ROUTEMAP(R)        (R->route_map.map)
 119 };
 120
 121 /* ospf->config */
 122 enum {
 123         OSPF_RFC1583_COMPATIBLE =       (1 << 0),
 124         OSPF_OPAQUE_CAPABLE =           (1 << 2),
 125         OSPF_LOG_ADJACENCY_CHANGES =    (1 << 3),
 126         OSPF_LOG_ADJACENCY_DETAIL =     (1 << 4),
 127 };
 128
 129 /* OSPF instance structure. */
 130 struct ospf {
 131         /* OSPF's running state based on the '[no] router ospf [<instance>]'
 132          * config. */
 133         uint8_t oi_running;
 134
 135         /* OSPF instance ID  */
 136         unsigned short instance;
 137
 138         /* OSPF Router ID. */
 139         struct in_addr router_id;       /* Configured automatically. */
 140         struct in_addr router_id_static; /* Configured manually. */
 141         struct in_addr router_id_zebra;
 142
 143         vrf_id_t vrf_id; /* VRF Id */
 144         char *name;      /* VRF name */
 145
 146         /* ABR/ASBR internal flags. */
 147         uint8_t flags;
 148 #define OSPF_FLAG_ABR           0x0001
 149 #define OSPF_FLAG_ASBR          0x0002
 150
 151         /* ABR type. */
 152         uint8_t abr_type;
 153 #define OSPF_ABR_UNKNOWN        0
 154 #define OSPF_ABR_STAND          1
 155 #define OSPF_ABR_IBM            2
 156 #define OSPF_ABR_CISCO          3
 157 #define OSPF_ABR_SHORTCUT       4
 158 #define OSPF_ABR_DEFAULT        OSPF_ABR_CISCO
 159
 160         /* NSSA ABR */
 161         uint8_t anyNSSA; /* Bump for every NSSA attached. */
 162
 163         /* Configuration bitmask, refer to enum above */
 164         uint8_t config;
 165
 166         /* Opaque-LSA administrative flags. */
 167         uint8_t opaque;
 168 #define OPAQUE_OPERATION_READY_BIT      (1 << 0)
 169
 170         /* RFC3137 stub router. Configured time to stay stub / max-metric */
 171         unsigned int stub_router_startup_time;  /* seconds */
 172         unsigned int stub_router_shutdown_time; /* seconds */
 173 #define OSPF_STUB_ROUTER_UNCONFIGURED     0
 174         uint8_t stub_router_admin_set;
 175 #define OSPF_STUB_ROUTER_ADMINISTRATIVE_SET     1
 176 #define OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET   0
 177
 178 #define OSPF_STUB_MAX_METRIC_SUMMARY_COST       0x00ff0000
 179
 180         /* LSA timers */
 181         unsigned int min_ls_interval; /* minimum delay between LSAs (in msec) */
 182         unsigned int min_ls_arrival;  /* minimum interarrival time between LSAs
 183                                          (in msec) */
 184
 185         /* SPF parameters */
 186         unsigned int spf_delay; /* SPF delay time. */
 187         unsigned int spf_holdtime;     /* SPF hold time. */
 188         unsigned int spf_max_holdtime; /* SPF maximum-holdtime */
 189         unsigned int
 190                 spf_hold_multiplier; /* Adaptive multiplier for hold time */
 191
 192         int default_originate;  /* Default information originate. */
 193 #define DEFAULT_ORIGINATE_NONE          0
 194 #define DEFAULT_ORIGINATE_ZEBRA         1
 195 #define DEFAULT_ORIGINATE_ALWAYS        2
 196         uint32_t ref_bandwidth;       /* Reference Bandwidth (Kbps). */
 197         struct route_table *networks; /* OSPF config networks. */
 198         struct list *vlinks;      /* Configured Virtual-Links. */
 199         struct list *areas;        /* OSPF areas. */
 200         struct route_table *nbr_nbma;
 201         struct ospf_area *backbone; /* Pointer to the Backbone Area. */
 202
 203         struct list *oiflist;             /* ospf interfaces */
 204         uint8_t passive_interface_default; /* passive-interface default */
 205
 206         /* LSDB of AS-external-LSAs. */
 207         struct ospf_lsdb *lsdb;
 208
 209         /* Flags. */
 210         int ase_calc;   /* ASE calculation flag. */
 211
 212         struct list *opaque_lsa_self; /* Type-11 Opaque-LSAs */
 213
 214         /* Routing tables. */
 215         struct route_table *old_table; /* Old routing table. */
 216         struct route_table *new_table; /* Current routing table. */
 217
 218         struct route_table *old_rtrs; /* Old ABR/ASBR RT. */
 219         struct route_table *new_rtrs; /* New ABR/ASBR RT. */
 220
 221         struct route_table *new_external_route; /* New External Route. */
 222         struct route_table *old_external_route; /* Old External Route. */
 223
 224         struct route_table *external_lsas; /* Database of external LSAs,
 225                                               prefix is LSA's adv. network*/
 226
 227         /* Time stamps */
 228         struct timeval ts_spf;          /* SPF calculation time stamp. */
 229         struct timeval ts_spf_duration; /* Execution time of last SPF */
 230
 231         struct route_table *maxage_lsa; /* List of MaxAge LSA for deletion. */
 232         int redistribute;               /* Num of redistributed protocols. */
 233
 234         /* Threads. */
 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
 241                 *t_opaque_lsa_self; /* Type-11 Opaque-LSAs origin event. */
 242         struct thread *t_sr_update; /* Segment Routing update timer */
 243
 244         unsigned int maxage_delay;      /* Delay on Maxage remover timer, sec */
 245         struct thread *t_maxage;        /* MaxAge LSA remover timer. */
 246         struct thread *t_maxage_walker; /* MaxAge LSA checking timer. */
 247
 248         struct thread
 249                 *t_deferred_shutdown; /* deferred/stub-router shutdown timer*/
 250
 251         struct thread *t_write;
 252 #define OSPF_WRITE_INTERFACE_COUNT_DEFAULT    20
 253         struct thread *t_default_routemap_timer;
 254
 255         int write_oi_count; /* Num of packets sent per thread invocation */
 256         struct thread *t_read;
 257         int fd;
 258         struct stream *ibuf;
 259         struct list *oi_write_q;
 260
 261         /* Distribute lists out of other route sources. */
 262         struct {
 263                 char *name;
 264                 struct access_list *list;
 265         } dlist[ZEBRA_ROUTE_MAX];
 266 #define DISTRIBUTE_NAME(O,T)    (O)->dlist[T].name
 267 #define DISTRIBUTE_LIST(O,T)    (O)->dlist[T].list
 268
 269         /* OSPF redistribute configuration */
 270         struct list *redist[ZEBRA_ROUTE_MAX + 1];
 271
 272         /* Redistribute tag info. */
 273         route_tag_t
 274                 dtag[ZEBRA_ROUTE_MAX + 1]; // Pending: cant configure as of now
 275
 276         int default_metric; /* Default metric for redistribute. */
 277
 278 #define OSPF_LSA_REFRESHER_GRANULARITY 10
 279 #define OSPF_LSA_REFRESHER_SLOTS                                               \
 280         ((OSPF_LS_REFRESH_TIME + OSPF_LS_REFRESH_SHIFT)                        \
 281                  / OSPF_LSA_REFRESHER_GRANULARITY                              \
 282          + 1)
 283         struct {
 284                 uint16_t index;
 285                 struct list *qs[OSPF_LSA_REFRESHER_SLOTS];
 286         } lsa_refresh_queue;
 287
 288         struct thread *t_lsa_refresher;
 289         time_t lsa_refresher_started;
 290 #define OSPF_LSA_REFRESH_INTERVAL_DEFAULT 10
 291         uint16_t lsa_refresh_interval;
 292
 293         /* Distance parameter. */
 294         uint8_t distance_all;
 295         uint8_t distance_intra;
 296         uint8_t distance_inter;
 297         uint8_t distance_external;
 298
 299         /* Statistics for LSA origination. */
 300         uint32_t lsa_originate_count;
 301
 302         /* Statistics for LSA used for new instantiation. */
 303         uint32_t rx_lsa_count;
 304
 305         /* Counter of "ip ospf area x.x.x.x" used
 306          * for multual exclusion of network command under
 307          * router ospf or ip ospf area x under interface. */
 308         uint32_t if_ospf_cli_count;
 309
 310         struct route_table *distance_table;
 311
 312         /* Used during ospf instance going down send LSDB
 313          * update to neighbors immediatly */
 314         uint8_t inst_shutdown;
 315
 316         /* Enable or disable sending proactive ARP requests. */
 317         bool proactive_arp;
 318 #define OSPF_PROACTIVE_ARP_DEFAULT true
 319
 320         /* Redistributed external information. */
 321         struct list *external[ZEBRA_ROUTE_MAX + 1];
 322 #define EXTERNAL_INFO(E) (E->external_info)
 323
 324         /* Gracefull restart Helper supported configs*/
 325         /* Supported grace interval*/
 326         uint32_t supported_grace_time;
 327
 328         /* Helper support
 329          * Supported : True
 330          * Not Supported : False.
 331          */
 332         bool is_helper_supported;
 333
 334         /* Support for strict LSA check.
 335          * if it is set,Helper aborted
 336          * upon a TOPO change.
 337          */
 338         bool strict_lsa_check;
 339
 340         /* Support as HELPER only for
 341          * planned restarts.
 342          */
 343         bool only_planned_restart;
 344
 345         /* This list contains the advertisement
 346          * routerids which are not support for HELPERs.
 347          */
 348         struct hash *enable_rtr_list;
 349
 350         /* HELPER for number of active
 351          * RESTARTERs.
 352          */
 353         uint16_t active_restarter_cnt;
 354
 355         /* last HELPER exit reason */
 356         uint32_t last_exit_reason;
 357
 358         /* MPLS LDP-IGP Sync */
 359         struct ldp_sync_info_cmd ldp_sync_cmd;
 360
 361         QOBJ_FIELDS
 362 };
 363 DECLARE_QOBJ_TYPE(ospf)
 364
 365 /* OSPF area structure. */
 366 struct ospf_area {
 367         /* OSPF instance. */
 368         struct ospf *ospf;
 369
 370         /* Zebra interface list belonging to the area. */
 371         struct list *oiflist;
 372
 373         /* Area ID. */
 374         struct in_addr area_id;
 375
 376         /* Area ID format. */
 377         int area_id_fmt;
 378 #define OSPF_AREA_ID_FMT_DOTTEDQUAD     1
 379 #define OSPF_AREA_ID_FMT_DECIMAL        2
 380
 381         /* Address range. */
 382         struct list *address_range;
 383
 384         /* Configured variables. */
 385         int external_routing;    /* ExternalRoutingCapability. */
 386         int no_summary;          /* Don't inject summaries into stub.*/
 387         int shortcut_configured; /* Area configured as shortcut. */
 388 #define OSPF_SHORTCUT_DEFAULT   0
 389 #define OSPF_SHORTCUT_ENABLE    1
 390 #define OSPF_SHORTCUT_DISABLE   2
 391         int shortcut_capability; /* Other ABRs agree on S-bit */
 392         uint32_t default_cost;   /* StubDefaultCost. */
 393         int auth_type;           /* Authentication type. */
 394
 395
 396         uint8_t NSSATranslatorRole; /* NSSA configured role */
 397 #define OSPF_NSSA_ROLE_NEVER     0
 398 #define OSPF_NSSA_ROLE_CANDIDATE 1
 399 #define OSPF_NSSA_ROLE_ALWAYS    2
 400         uint8_t NSSATranslatorState; /* NSSA operational role */
 401 #define OSPF_NSSA_TRANSLATE_DISABLED 0
 402 #define OSPF_NSSA_TRANSLATE_ENABLED  1
 403         int NSSATranslatorStabilityInterval;
 404
 405         uint8_t transit; /* TransitCapability. */
 406 #define OSPF_TRANSIT_FALSE      0
 407 #define OSPF_TRANSIT_TRUE       1
 408         struct route_table *ranges; /* Configured Area Ranges. */
 409
 410         /* RFC3137 stub router state flags for area */
 411         uint8_t stub_router_state;
 412 #define OSPF_AREA_ADMIN_STUB_ROUTED     (1 << 0) /* admin stub-router set */
 413 #define OSPF_AREA_IS_STUB_ROUTED        (1 << 1) /* stub-router active */
 414 #define OSPF_AREA_WAS_START_STUB_ROUTED (1 << 2) /* startup SR was done */
 415         /* Area related LSDBs[Type1-4]. */
 416         struct ospf_lsdb *lsdb;
 417
 418         /* Self-originated LSAs. */
 419         struct ospf_lsa *router_lsa_self;
 420         struct list *opaque_lsa_self; /* Type-10 Opaque-LSAs */
 421
 422         /* Area announce list. */
 423         struct {
 424                 char *name;
 425                 struct access_list *list;
 426         } _export;
 427 #define EXPORT_NAME(A)  (A)->_export.name
 428 #define EXPORT_LIST(A)  (A)->_export.list
 429
 430         /* Area acceptance list. */
 431         struct {
 432                 char *name;
 433                 struct access_list *list;
 434         } import;
 435 #define IMPORT_NAME(A)  (A)->import.name
 436 #define IMPORT_LIST(A)  (A)->import.list
 437
 438         /* Type 3 LSA Area prefix-list. */
 439         struct {
 440                 char *name;
 441                 struct prefix_list *list;
 442         } plist_in;
 443 #define PREFIX_LIST_IN(A)   (A)->plist_in.list
 444 #define PREFIX_NAME_IN(A)   (A)->plist_in.name
 445
 446         struct {
 447                 char *name;
 448                 struct prefix_list *list;
 449         } plist_out;
 450 #define PREFIX_LIST_OUT(A)  (A)->plist_out.list
 451 #define PREFIX_NAME_OUT(A)  (A)->plist_out.name
 452
 453         /* Shortest Path Tree. */
 454         struct vertex *spf;
 455         struct list *spf_vertex_list;
 456
 457         bool spf_dry_run;   /* flag for checking if the SPF calculation is
 458                                intended for the local RIB */
 459         bool spf_root_node; /* flag for checking if the calculating node is the
 460                                root node of the SPF tree */
 461
 462         /* Threads. */
 463         struct thread *t_stub_router;     /* Stub-router timer */
 464         struct thread *t_opaque_lsa_self; /* Type-10 Opaque-LSAs origin. */
 465
 466         /* Statistics field. */
 467         uint32_t spf_calculation; /* SPF Calculation Count. */
 468
 469         /* Time stamps. */
 470         struct timeval ts_spf; /* SPF calculation time stamp. */
 471
 472         /* Router count. */
 473         uint32_t abr_count;  /* ABR router in this area. */
 474         uint32_t asbr_count; /* ASBR router in this area. */
 475
 476         /* Counters. */
 477         uint32_t act_ints;  /* Active interfaces. */
 478         uint32_t full_nbrs; /* Fully adjacent neighbors. */
 479         uint32_t full_vls;  /* Fully adjacent virtual neighbors. */
 480 };
 481
 482 /* OSPF config network structure. */
 483 struct ospf_network {
 484         /* Area ID. */
 485         struct in_addr area_id;
 486         int area_id_fmt;
 487 };
 488
 489 /* OSPF NBMA neighbor structure. */
 490 struct ospf_nbr_nbma {
 491         /* Neighbor IP address. */
 492         struct in_addr addr;
 493
 494         /* OSPF interface. */
 495         struct ospf_interface *oi;
 496
 497         /* OSPF neighbor structure. */
 498         struct ospf_neighbor *nbr;
 499
 500         /* Neighbor priority. */
 501         uint8_t priority;
 502
 503         /* Poll timer value. */
 504         uint32_t v_poll;
 505
 506         /* Poll timer thread. */
 507         struct thread *t_poll;
 508
 509         /* State change. */
 510         uint32_t state_change;
 511 };
 512
 513 /* Macro. */
 514 #define OSPF_AREA_SAME(X, Y)                                                   \
 515         (memcmp((X->area_id), (Y->area_id), IPV4_MAX_BYTELEN) == 0)
 516
 517 #define IS_OSPF_ABR(O)          ((O)->flags & OSPF_FLAG_ABR)
 518 #define IS_OSPF_ASBR(O)         ((O)->flags & OSPF_FLAG_ASBR)
 519
 520 #define OSPF_IS_AREA_ID_BACKBONE(I) ((I).s_addr == OSPF_AREA_BACKBONE)
 521 #define OSPF_IS_AREA_BACKBONE(A) OSPF_IS_AREA_ID_BACKBONE ((A)->area_id)
 522
 523 #ifdef roundup
 524 #  define ROUNDUP(val, gran)    roundup(val, gran)
 525 #else  /* roundup */
 526 #  define ROUNDUP(val, gran)    (((val) - 1 | (gran) - 1) + 1)
 527 #endif /* roundup */
 528
 529 #define LSA_OPTIONS_GET(area)                                                  \
 530         (((area)->external_routing == OSPF_AREA_DEFAULT) ? OSPF_OPTION_E : 0)
 531 #define LSA_OPTIONS_NSSA_GET(area)                                             \
 532         (((area)->external_routing == OSPF_AREA_NSSA) ? OSPF_OPTION_NP : 0)
 533
 534 #define OSPF_TIMER_ON(T,F,V) thread_add_timer (master,(F),ospf,(V),&(T))
 535 #define OSPF_AREA_TIMER_ON(T,F,V) thread_add_timer (master, (F), area, (V), &(T))
 536 #define OSPF_POLL_TIMER_ON(T,F,V) thread_add_timer (master, (F), nbr_nbma, (V), &(T))
 537 #define OSPF_POLL_TIMER_OFF(X) OSPF_TIMER_OFF((X))
 538 #define OSPF_TIMER_OFF(X)                                                      \
 539         do {                                                                   \
 540                 if (X) {                                                       \
 541                         thread_cancel(X);                                      \
 542                         (X) = NULL;                                            \
 543                 }                                                              \
 544         } while (0)
 545
 546 /* Extern variables. */
 547 extern struct ospf_master *om;
 548 extern const int ospf_redistributed_proto_max;
 549 extern struct zclient *zclient;
 550 extern struct thread_master *master;
 551 extern int ospf_zlog;
 552 extern struct zebra_privs_t ospfd_privs;
 553
 554 /* Prototypes. */
 555 extern const char *ospf_redist_string(unsigned int route_type);
 556 extern struct ospf *ospf_lookup_instance(unsigned short);
 557 extern struct ospf *ospf_get(unsigned short instance, const char *name,
 558                              bool *created);
 559 extern struct ospf *ospf_get_instance(unsigned short, bool *created);
 560 extern struct ospf *ospf_lookup_by_inst_name(unsigned short instance,
 561                                              const char *name);
 562 extern struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id);
 563 extern void ospf_finish(struct ospf *);
 564 extern void ospf_router_id_update(struct ospf *ospf);
 565 extern int ospf_network_set(struct ospf *, struct prefix_ipv4 *, struct in_addr,
 566                             int);
 567 extern int ospf_network_unset(struct ospf *, struct prefix_ipv4 *,
 568                               struct in_addr);
 569 extern int ospf_area_display_format_set(struct ospf *, struct ospf_area *area,
 570                                         int df);
 571 extern int ospf_area_stub_set(struct ospf *, struct in_addr);
 572 extern int ospf_area_stub_unset(struct ospf *, struct in_addr);
 573 extern int ospf_area_no_summary_set(struct ospf *, struct in_addr);
 574 extern int ospf_area_no_summary_unset(struct ospf *, struct in_addr);
 575 extern int ospf_area_nssa_set(struct ospf *, struct in_addr);
 576 extern int ospf_area_nssa_unset(struct ospf *, struct in_addr, int);
 577 extern int ospf_area_nssa_translator_role_set(struct ospf *, struct in_addr,
 578                                               int);
 579 extern int ospf_area_export_list_set(struct ospf *, struct ospf_area *,
 580                                      const char *);
 581 extern int ospf_area_export_list_unset(struct ospf *, struct ospf_area *);
 582 extern int ospf_area_import_list_set(struct ospf *, struct ospf_area *,
 583                                      const char *);
 584 extern int ospf_area_import_list_unset(struct ospf *, struct ospf_area *);
 585 extern int ospf_area_shortcut_set(struct ospf *, struct ospf_area *, int);
 586 extern int ospf_area_shortcut_unset(struct ospf *, struct ospf_area *);
 587 extern int ospf_timers_refresh_set(struct ospf *, int);
 588 extern int ospf_timers_refresh_unset(struct ospf *);
 589 extern int ospf_nbr_nbma_set(struct ospf *, struct in_addr);
 590 extern int ospf_nbr_nbma_unset(struct ospf *, struct in_addr);
 591 extern int ospf_nbr_nbma_priority_set(struct ospf *, struct in_addr, uint8_t);
 592 extern int ospf_nbr_nbma_priority_unset(struct ospf *, struct in_addr);
 593 extern int ospf_nbr_nbma_poll_interval_set(struct ospf *, struct in_addr,
 594                                            unsigned int);
 595 extern int ospf_nbr_nbma_poll_interval_unset(struct ospf *, struct in_addr);
 596 extern void ospf_prefix_list_update(struct prefix_list *);
 597 extern void ospf_init(void);
 598 extern void ospf_if_update(struct ospf *, struct interface *);
 599 extern void ospf_ls_upd_queue_empty(struct ospf_interface *);
 600 extern void ospf_terminate(void);
 601 extern void ospf_nbr_nbma_if_update(struct ospf *, struct ospf_interface *);
 602 extern struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *,
 603                                                   struct in_addr);
 604 extern struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *,
 605                                                        struct in_addr *, int);
 606 extern int ospf_oi_count(struct interface *);
 607
 608 extern struct ospf_area *ospf_area_get(struct ospf *, struct in_addr);
 609 extern void ospf_area_check_free(struct ospf *, struct in_addr);
 610 extern struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *,
 611                                                      struct in_addr);
 612 extern void ospf_area_add_if(struct ospf_area *, struct ospf_interface *);
 613 extern void ospf_area_del_if(struct ospf_area *, struct ospf_interface *);
 614
 615 extern void ospf_interface_area_set(struct ospf *, struct interface *);
 616 extern void ospf_interface_area_unset(struct ospf *, struct interface *);
 617 extern bool ospf_interface_area_is_already_set(struct ospf *ospf,
 618                                                struct interface *ifp);
 619
 620 extern void ospf_route_map_init(void);
 621
 622 extern void ospf_master_init(struct thread_master *master);
 623 extern void ospf_vrf_init(void);
 624 extern void ospf_vrf_terminate(void);
 625 extern void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf);
 626 extern void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf);
 627 const char *ospf_vrf_id_to_name(vrf_id_t vrf_id);
 628 int ospf_area_nssa_no_summary_set(struct ospf *, struct in_addr);
 629
 630 const char *ospf_get_name(const struct ospf *ospf);
 631 #endif /* _ZEBRA_OSPFD_H */