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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* |
3 | * OSPFd main header. | |
4 | * Copyright (C) 1998, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada | |
718e3744 | 5 | */ |
6 | ||
7 | #ifndef _ZEBRA_OSPFD_H | |
8 | #define _ZEBRA_OSPFD_H | |
9 | ||
c514adc6 | 10 | #include <zebra.h> |
7fd0729f | 11 | #include "typesafe.h" |
ae19c240 | 12 | #include "qobj.h" |
8551e6da | 13 | #include "libospf.h" |
132a782e | 14 | #include "ldp_sync.h" |
c514adc6 | 15 | |
718e3744 | 16 | #include "filter.h" |
343f5cc7 | 17 | #include "log.h" |
b5a8894d | 18 | #include "vrf.h" |
718e3744 | 19 | |
4a1ab8e4 | 20 | #include "ospf_memory.h" |
0a3fc2a5 | 21 | #include "ospf_dump_api.h" |
4a1ab8e4 | 22 | |
718e3744 | 23 | #define OSPF_VERSION 2 |
24 | ||
718e3744 | 25 | /* VTY port number. */ |
26 | #define OSPF_VTY_PORT 2604 | |
718e3744 | 27 | |
28 | /* IP TTL for OSPF protocol. */ | |
29 | #define OSPF_IP_TTL 1 | |
30 | #define OSPF_VL_IP_TTL 100 | |
31 | ||
32 | /* Default configuration file name for ospfd. */ | |
33 | #define OSPF_DEFAULT_CONFIG "ospfd.conf" | |
34 | ||
464c8204 | 35 | #define OSPF_NSSA_TRANS_STABLE_DEFAULT 40 |
718e3744 | 36 | |
37 | #define OSPF_ALLSPFROUTERS 0xe0000005 /* 224.0.0.5 */ | |
38 | #define OSPF_ALLDROUTERS 0xe0000006 /* 224.0.0.6 */ | |
39 | ||
718e3744 | 40 | /* OSPF Authentication Type. */ |
41 | #define OSPF_AUTH_NULL 0 | |
42 | #define OSPF_AUTH_SIMPLE 1 | |
43 | #define OSPF_AUTH_CRYPTOGRAPHIC 2 | |
44 | /* For Interface authentication setting default */ | |
45 | #define OSPF_AUTH_NOTSET -1 | |
d62a17ae | 46 | /* For the consumption and sanity of the command handler */ |
718e3744 | 47 | /* DO NIOT REMOVE!!! Need to detect whether a value has |
48 | been given or not in VLink command handlers */ | |
49 | #define OSPF_AUTH_CMD_NOTSEEN -2 | |
50 | ||
718e3744 | 51 | /* OSPF options. */ |
16f1b9ee | 52 | #define OSPF_OPTION_MT 0x01 /* M/T */ |
718e3744 | 53 | #define OSPF_OPTION_E 0x02 |
54 | #define OSPF_OPTION_MC 0x04 | |
55 | #define OSPF_OPTION_NP 0x08 | |
56 | #define OSPF_OPTION_EA 0x10 | |
57 | #define OSPF_OPTION_DC 0x20 | |
58 | #define OSPF_OPTION_O 0x40 | |
16f1b9ee | 59 | #define OSPF_OPTION_DN 0x80 |
718e3744 | 60 | |
61 | /* OSPF Database Description flags. */ | |
62 | #define OSPF_DD_FLAG_MS 0x01 | |
63 | #define OSPF_DD_FLAG_M 0x02 | |
64 | #define OSPF_DD_FLAG_I 0x04 | |
65 | #define OSPF_DD_FLAG_ALL 0x07 | |
66 | ||
718e3744 | 67 | #define OSPF_LS_REFRESH_SHIFT (60 * 15) |
68 | #define OSPF_LS_REFRESH_JITTER 60 | |
69 | ||
d62a17ae | 70 | struct ospf_external { |
d7c0a89a | 71 | unsigned short instance; |
d62a17ae | 72 | struct route_table *external_info; |
7c8ff89e DS |
73 | }; |
74 | ||
020709f9 | 75 | /* OSPF master for system wide configuration and variables. */ |
d62a17ae | 76 | struct ospf_master { |
77 | /* OSPF instance. */ | |
78 | struct list *ospf; | |
020709f9 | 79 | |
d62a17ae | 80 | /* OSPF thread master. */ |
cd9d0537 | 81 | struct event_loop *master; |
020709f9 | 82 | |
d62a17ae | 83 | /* Various OSPF global configuration. */ |
d7c0a89a | 84 | uint8_t options; |
32ab5cf4 | 85 | #define OSPF_MASTER_SHUTDOWN (1 << 0) /* deferred-shutdown */ |
020709f9 | 86 | }; |
87 | ||
d62a17ae | 88 | struct ospf_redist { |
d7c0a89a | 89 | unsigned short instance; |
d62a17ae | 90 | |
91 | /* Redistribute metric info. */ | |
92 | struct { | |
93 | int type; /* External metric type (E1 or E2). */ | |
94 | int value; /* Value for static metric (24-bit). | |
95 | -1 means metric value is not set. */ | |
96 | } dmetric; | |
97 | ||
98 | /* For redistribute route map. */ | |
99 | struct { | |
100 | char *name; | |
101 | struct route_map *map; | |
102 | } route_map; /* +1 is for default-information */ | |
7c8ff89e | 103 | #define ROUTEMAP_NAME(R) (R->route_map.name) |
6f7bbc0c MN |
104 | #define ROUTEMAP(R) (R->route_map.map) |
105 | }; | |
106 | ||
107 | /* OSPF area flood reduction info */ | |
108 | struct ospf_area_fr_info { | |
109 | bool enabled; /* Area support for Flood Reduction */ | |
110 | bool configured; /* Flood Reduction configured per area knob */ | |
111 | bool state_changed; /* flood reduction state change info */ | |
112 | int router_lsas_recv_dc_bit; /* Number of unique router lsas | |
113 | * received with DC bit set. | |
114 | * (excluding self) | |
115 | */ | |
116 | bool area_ind_lsa_recvd; /* Indication lsa received in this area */ | |
117 | bool area_dc_clear; /* Area has atleast one lsa with dc bit 0( | |
118 | * excluding indication lsa) | |
119 | */ | |
120 | struct ospf_lsa *indication_lsa_self; /* Indication LSA generated | |
121 | * in the area. | |
122 | */ | |
7c8ff89e DS |
123 | }; |
124 | ||
c572fbfe DL |
125 | /* ospf->config */ |
126 | enum { | |
127 | OSPF_RFC1583_COMPATIBLE = (1 << 0), | |
128 | OSPF_OPAQUE_CAPABLE = (1 << 2), | |
129 | OSPF_LOG_ADJACENCY_CHANGES = (1 << 3), | |
130 | OSPF_LOG_ADJACENCY_DETAIL = (1 << 4), | |
5b5d66c4 | 131 | OSPF_SEND_EXTRA_DATA_TO_ZEBRA = (1 << 5), |
c572fbfe DL |
132 | }; |
133 | ||
385a1e07 G |
134 | /* TI-LFA */ |
135 | enum protection_type { | |
136 | OSPF_TI_LFA_UNDEFINED_PROTECTION, | |
137 | OSPF_TI_LFA_LINK_PROTECTION, | |
138 | OSPF_TI_LFA_NODE_PROTECTION, | |
139 | }; | |
140 | ||
10514170 RW |
141 | /* OSPF nonstop forwarding aka Graceful Restart */ |
142 | struct ospf_gr_info { | |
143 | bool restart_support; | |
144 | bool restart_in_progress; | |
145 | bool prepare_in_progress; | |
146 | bool finishing_restart; | |
147 | uint32_t grace_period; | |
e6685141 | 148 | struct event *t_grace_period; |
10514170 RW |
149 | }; |
150 | ||
718e3744 | 151 | /* OSPF instance structure. */ |
d62a17ae | 152 | struct ospf { |
153 | /* OSPF's running state based on the '[no] router ospf [<instance>]' | |
154 | * config. */ | |
d7c0a89a | 155 | uint8_t oi_running; |
0bad4851 | 156 | |
d62a17ae | 157 | /* OSPF instance ID */ |
d7c0a89a | 158 | unsigned short instance; |
7c8ff89e | 159 | |
d62a17ae | 160 | /* OSPF Router ID. */ |
161 | struct in_addr router_id; /* Configured automatically. */ | |
162 | struct in_addr router_id_static; /* Configured manually. */ | |
6021c6c0 | 163 | struct in_addr router_id_zebra; |
718e3744 | 164 | |
996c9314 LB |
165 | vrf_id_t vrf_id; /* VRF Id */ |
166 | char *name; /* VRF name */ | |
b5a8894d | 167 | |
d62a17ae | 168 | /* ABR/ASBR internal flags. */ |
d7c0a89a | 169 | uint8_t flags; |
718e3744 | 170 | #define OSPF_FLAG_ABR 0x0001 |
171 | #define OSPF_FLAG_ASBR 0x0002 | |
172 | ||
d62a17ae | 173 | /* ABR type. */ |
d7c0a89a | 174 | uint8_t abr_type; |
718e3744 | 175 | #define OSPF_ABR_UNKNOWN 0 |
176 | #define OSPF_ABR_STAND 1 | |
177 | #define OSPF_ABR_IBM 2 | |
178 | #define OSPF_ABR_CISCO 3 | |
179 | #define OSPF_ABR_SHORTCUT 4 | |
d57834f6 | 180 | #define OSPF_ABR_DEFAULT OSPF_ABR_CISCO |
718e3744 | 181 | |
d62a17ae | 182 | /* NSSA ABR */ |
d7c0a89a | 183 | uint8_t anyNSSA; /* Bump for every NSSA attached. */ |
718e3744 | 184 | |
c572fbfe | 185 | /* Configuration bitmask, refer to enum above */ |
d7c0a89a | 186 | uint8_t config; |
718e3744 | 187 | |
d62a17ae | 188 | /* Opaque-LSA administrative flags. */ |
d7c0a89a | 189 | uint8_t opaque; |
718e3744 | 190 | #define OPAQUE_OPERATION_READY_BIT (1 << 0) |
718e3744 | 191 | |
d62a17ae | 192 | /* RFC3137 stub router. Configured time to stay stub / max-metric */ |
193 | unsigned int stub_router_startup_time; /* seconds */ | |
194 | unsigned int stub_router_shutdown_time; /* seconds */ | |
88d6cf37 | 195 | #define OSPF_STUB_ROUTER_UNCONFIGURED 0 |
d7c0a89a | 196 | uint8_t stub_router_admin_set; |
4ba4fc85 AB |
197 | #define OSPF_STUB_ROUTER_ADMINISTRATIVE_SET 1 |
198 | #define OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET 0 | |
88d6cf37 | 199 | |
b4154c14 JR |
200 | #define OSPF_STUB_MAX_METRIC_SUMMARY_COST 0x00ff0000 |
201 | ||
d62a17ae | 202 | /* LSA timers */ |
203 | unsigned int min_ls_interval; /* minimum delay between LSAs (in msec) */ | |
204 | unsigned int min_ls_arrival; /* minimum interarrival time between LSAs | |
205 | (in msec) */ | |
206 | ||
207 | /* SPF parameters */ | |
208 | unsigned int spf_delay; /* SPF delay time. */ | |
209 | unsigned int spf_holdtime; /* SPF hold time. */ | |
210 | unsigned int spf_max_holdtime; /* SPF maximum-holdtime */ | |
211 | unsigned int | |
212 | spf_hold_multiplier; /* Adaptive multiplier for hold time */ | |
213 | ||
214 | int default_originate; /* Default information originate. */ | |
718e3744 | 215 | #define DEFAULT_ORIGINATE_NONE 0 |
216 | #define DEFAULT_ORIGINATE_ZEBRA 1 | |
217 | #define DEFAULT_ORIGINATE_ALWAYS 2 | |
d7c0a89a | 218 | uint32_t ref_bandwidth; /* Reference Bandwidth (Kbps). */ |
d62a17ae | 219 | struct route_table *networks; /* OSPF config networks. */ |
220 | struct list *vlinks; /* Configured Virtual-Links. */ | |
221 | struct list *areas; /* OSPF areas. */ | |
222 | struct route_table *nbr_nbma; | |
223 | struct ospf_area *backbone; /* Pointer to the Backbone Area. */ | |
224 | ||
225 | struct list *oiflist; /* ospf interfaces */ | |
d7c0a89a | 226 | uint8_t passive_interface_default; /* passive-interface default */ |
d62a17ae | 227 | |
228 | /* LSDB of AS-external-LSAs. */ | |
229 | struct ospf_lsdb *lsdb; | |
230 | ||
231 | /* Flags. */ | |
d62a17ae | 232 | int ase_calc; /* ASE calculation flag. */ |
233 | ||
234 | struct list *opaque_lsa_self; /* Type-11 Opaque-LSAs */ | |
235 | ||
236 | /* Routing tables. */ | |
237 | struct route_table *old_table; /* Old routing table. */ | |
238 | struct route_table *new_table; /* Current routing table. */ | |
239 | ||
b538baf3 CH |
240 | struct route_table *oall_rtrs; /* Old router RT. */ |
241 | struct route_table *all_rtrs; /* New routers RT. */ | |
242 | ||
d62a17ae | 243 | struct route_table *old_rtrs; /* Old ABR/ASBR RT. */ |
244 | struct route_table *new_rtrs; /* New ABR/ASBR RT. */ | |
245 | ||
246 | struct route_table *new_external_route; /* New External Route. */ | |
247 | struct route_table *old_external_route; /* Old External Route. */ | |
248 | ||
249 | struct route_table *external_lsas; /* Database of external LSAs, | |
250 | prefix is LSA's adv. network*/ | |
251 | ||
252 | /* Time stamps */ | |
253 | struct timeval ts_spf; /* SPF calculation time stamp. */ | |
254 | struct timeval ts_spf_duration; /* Execution time of last SPF */ | |
255 | ||
256 | struct route_table *maxage_lsa; /* List of MaxAge LSA for deletion. */ | |
257 | int redistribute; /* Num of redistributed protocols. */ | |
258 | ||
259 | /* Threads. */ | |
e6685141 DS |
260 | struct event *t_abr_task; /* ABR task timer. */ |
261 | struct event *t_abr_fr; /* ABR FR timer. */ | |
262 | struct event *t_asbr_check; /* ASBR check timer. */ | |
263 | struct event *t_asbr_nssa_redist_update; /* ASBR NSSA redistribution | |
1c1c342d | 264 | update timer. */ |
e6685141 DS |
265 | struct event *t_distribute_update; /* Distirbute list update timer. */ |
266 | struct event *t_spf_calc; /* SPF calculation timer. */ | |
267 | struct event *t_ase_calc; /* ASE calculation timer. */ | |
268 | struct event *t_opaque_lsa_self; /* Type-11 Opaque-LSAs origin event. */ | |
269 | struct event *t_sr_update; /* Segment Routing update timer */ | |
d62a17ae | 270 | |
271 | unsigned int maxage_delay; /* Delay on Maxage remover timer, sec */ | |
e6685141 DS |
272 | struct event *t_maxage; /* MaxAge LSA remover timer. */ |
273 | struct event *t_maxage_walker; /* MaxAge LSA checking timer. */ | |
d62a17ae | 274 | |
e6685141 | 275 | struct event |
d62a17ae | 276 | *t_deferred_shutdown; /* deferred/stub-router shutdown timer*/ |
277 | ||
e6685141 | 278 | struct event *t_write; |
e8f45e82 | 279 | #define OSPF_WRITE_INTERFACE_COUNT_DEFAULT 20 |
e6685141 | 280 | struct event *t_default_routemap_timer; |
1febb13d | 281 | |
d62a17ae | 282 | int write_oi_count; /* Num of packets sent per thread invocation */ |
e6685141 | 283 | struct event *t_read; |
d62a17ae | 284 | int fd; |
285 | struct stream *ibuf; | |
286 | struct list *oi_write_q; | |
287 | ||
288 | /* Distribute lists out of other route sources. */ | |
289 | struct { | |
290 | char *name; | |
291 | struct access_list *list; | |
292 | } dlist[ZEBRA_ROUTE_MAX]; | |
020709f9 | 293 | #define DISTRIBUTE_NAME(O,T) (O)->dlist[T].name |
294 | #define DISTRIBUTE_LIST(O,T) (O)->dlist[T].list | |
718e3744 | 295 | |
d62a17ae | 296 | /* OSPF redistribute configuration */ |
297 | struct list *redist[ZEBRA_ROUTE_MAX + 1]; | |
718e3744 | 298 | |
d62a17ae | 299 | /* Redistribute tag info. */ |
300 | route_tag_t | |
301 | dtag[ZEBRA_ROUTE_MAX + 1]; // Pending: cant configure as of now | |
0d9551dc | 302 | |
d62a17ae | 303 | int default_metric; /* Default metric for redistribute. */ |
718e3744 | 304 | |
305 | #define OSPF_LSA_REFRESHER_GRANULARITY 10 | |
d62a17ae | 306 | #define OSPF_LSA_REFRESHER_SLOTS \ |
307 | ((OSPF_LS_REFRESH_TIME + OSPF_LS_REFRESH_SHIFT) \ | |
308 | / OSPF_LSA_REFRESHER_GRANULARITY \ | |
309 | + 1) | |
310 | struct { | |
d7c0a89a | 311 | uint16_t index; |
d62a17ae | 312 | struct list *qs[OSPF_LSA_REFRESHER_SLOTS]; |
313 | } lsa_refresh_queue; | |
314 | ||
e6685141 | 315 | struct event *t_lsa_refresher; |
d62a17ae | 316 | time_t lsa_refresher_started; |
718e3744 | 317 | #define OSPF_LSA_REFRESH_INTERVAL_DEFAULT 10 |
d7c0a89a | 318 | uint16_t lsa_refresh_interval; |
b345a3d9 | 319 | uint16_t lsa_refresh_timer; |
d62a17ae | 320 | |
321 | /* Distance parameter. */ | |
d7c0a89a QY |
322 | uint8_t distance_all; |
323 | uint8_t distance_intra; | |
324 | uint8_t distance_inter; | |
325 | uint8_t distance_external; | |
d62a17ae | 326 | |
327 | /* Statistics for LSA origination. */ | |
d7c0a89a | 328 | uint32_t lsa_originate_count; |
d62a17ae | 329 | |
330 | /* Statistics for LSA used for new instantiation. */ | |
d7c0a89a | 331 | uint32_t rx_lsa_count; |
d62a17ae | 332 | |
d62a17ae | 333 | struct route_table *distance_table; |
334 | ||
046460a1 CS |
335 | /* Used during ospf instance going down send LSDB |
336 | * update to neighbors immediatly */ | |
337 | uint8_t inst_shutdown; | |
338 | ||
a92706bb JU |
339 | /* Enable or disable sending proactive ARP requests. */ |
340 | bool proactive_arp; | |
341 | #define OSPF_PROACTIVE_ARP_DEFAULT true | |
342 | ||
de1ac5fd CS |
343 | /* Redistributed external information. */ |
344 | struct list *external[ZEBRA_ROUTE_MAX + 1]; | |
f96f2713 | 345 | #define EXTERNAL_INFO(E) (E->external_info) |
346 | ||
17be83bf | 347 | /* Graceful restart Helper supported configs*/ |
f96f2713 | 348 | /* Supported grace interval*/ |
349 | uint32_t supported_grace_time; | |
350 | ||
351 | /* Helper support | |
352 | * Supported : True | |
353 | * Not Supported : False. | |
354 | */ | |
355 | bool is_helper_supported; | |
356 | ||
357 | /* Support for strict LSA check. | |
358 | * if it is set,Helper aborted | |
359 | * upon a TOPO change. | |
360 | */ | |
361 | bool strict_lsa_check; | |
362 | ||
363 | /* Support as HELPER only for | |
364 | * planned restarts. | |
365 | */ | |
366 | bool only_planned_restart; | |
367 | ||
368 | /* This list contains the advertisement | |
369 | * routerids which are not support for HELPERs. | |
370 | */ | |
371 | struct hash *enable_rtr_list; | |
372 | ||
373 | /* HELPER for number of active | |
374 | * RESTARTERs. | |
375 | */ | |
376 | uint16_t active_restarter_cnt; | |
377 | ||
378 | /* last HELPER exit reason */ | |
379 | uint32_t last_exit_reason; | |
de1ac5fd | 380 | |
cb2bc4cb | 381 | /* delay timer to process external routes |
382 | * with summary address. | |
383 | */ | |
e6685141 | 384 | struct event *t_external_aggr; |
cb2bc4cb | 385 | |
386 | /* delay interval in seconds */ | |
4b939ad2 | 387 | uint16_t aggr_delay_interval; |
cb2bc4cb | 388 | |
389 | /* Table of configured Aggregate addresses */ | |
390 | struct route_table *rt_aggr_tbl; | |
391 | ||
392 | /* used as argument for aggr delay | |
393 | * timer thread. | |
394 | */ | |
395 | int aggr_action; | |
396 | ||
3d5b9855 | 397 | /* Max number of multiple paths |
398 | * to support ECMP. | |
399 | */ | |
400 | uint16_t max_multipath; | |
401 | ||
132a782e | 402 | /* MPLS LDP-IGP Sync */ |
403 | struct ldp_sync_info_cmd ldp_sync_cmd; | |
404 | ||
10514170 RW |
405 | /* OSPF Graceful Restart info */ |
406 | struct ospf_gr_info gr_info; | |
407 | ||
7fd0729f G |
408 | /* TI-LFA support for all interfaces. */ |
409 | bool ti_lfa_enabled; | |
385a1e07 | 410 | enum protection_type ti_lfa_protection_type; |
7fd0729f | 411 | |
6f7bbc0c MN |
412 | /* Flood Reduction configuration state */ |
413 | bool fr_configured; | |
414 | ||
96244aca | 415 | QOBJ_FIELDS; |
718e3744 | 416 | }; |
96244aca | 417 | DECLARE_QOBJ_TYPE(ospf); |
718e3744 | 418 | |
bdcfd34a G |
419 | enum ospf_ti_lfa_p_q_space_adjacency { |
420 | OSPF_TI_LFA_P_Q_SPACE_ADJACENT, | |
421 | OSPF_TI_LFA_P_Q_SPACE_NON_ADJACENT, | |
422 | }; | |
423 | ||
7fd0729f G |
424 | enum ospf_ti_lfa_node_type { |
425 | OSPF_TI_LFA_UNDEFINED_NODE, | |
426 | OSPF_TI_LFA_PQ_NODE, | |
427 | OSPF_TI_LFA_P_NODE, | |
428 | OSPF_TI_LFA_Q_NODE, | |
429 | }; | |
430 | ||
431 | struct ospf_ti_lfa_node_info { | |
432 | struct vertex *node; | |
433 | enum ospf_ti_lfa_node_type type; | |
434 | struct in_addr nexthop; | |
435 | }; | |
436 | ||
bdcfd34a G |
437 | struct ospf_ti_lfa_inner_backup_path_info { |
438 | struct ospf_ti_lfa_node_info p_node_info; | |
439 | struct ospf_ti_lfa_node_info q_node_info; | |
440 | struct mpls_label_stack *label_stack; | |
441 | }; | |
442 | ||
385a1e07 G |
443 | struct protected_resource { |
444 | enum protection_type type; | |
445 | ||
446 | /* Link Protection */ | |
447 | struct router_lsa_link *link; | |
448 | ||
449 | /* Node Protection */ | |
450 | struct in_addr router_id; | |
451 | }; | |
452 | ||
960b9a53 | 453 | PREDECL_RBTREE_UNIQ(q_spaces); |
7fd0729f G |
454 | struct q_space { |
455 | struct vertex *root; | |
456 | struct list *vertex_list; | |
457 | struct mpls_label_stack *label_stack; | |
458 | struct in_addr nexthop; | |
9d3444f8 | 459 | struct list *pc_path; |
bdcfd34a G |
460 | struct ospf_ti_lfa_node_info *p_node_info; |
461 | struct ospf_ti_lfa_node_info *q_node_info; | |
7fd0729f G |
462 | struct q_spaces_item q_spaces_item; |
463 | }; | |
464 | ||
960b9a53 | 465 | PREDECL_RBTREE_UNIQ(p_spaces); |
7fd0729f G |
466 | struct p_space { |
467 | struct vertex *root; | |
385a1e07 | 468 | struct protected_resource *protected_resource; |
7fd0729f G |
469 | struct q_spaces_head *q_spaces; |
470 | struct list *vertex_list; | |
471 | struct vertex *pc_spf; | |
472 | struct list *pc_vertex_list; | |
473 | struct p_spaces_item p_spaces_item; | |
474 | }; | |
475 | ||
718e3744 | 476 | /* OSPF area structure. */ |
d62a17ae | 477 | struct ospf_area { |
478 | /* OSPF instance. */ | |
479 | struct ospf *ospf; | |
718e3744 | 480 | |
d62a17ae | 481 | /* Zebra interface list belonging to the area. */ |
482 | struct list *oiflist; | |
718e3744 | 483 | |
d62a17ae | 484 | /* Area ID. */ |
485 | struct in_addr area_id; | |
718e3744 | 486 | |
d62a17ae | 487 | /* Area ID format. */ |
488 | int area_id_fmt; | |
86573dcb QY |
489 | #define OSPF_AREA_ID_FMT_DOTTEDQUAD 1 |
490 | #define OSPF_AREA_ID_FMT_DECIMAL 2 | |
718e3744 | 491 | |
d62a17ae | 492 | /* Address range. */ |
493 | struct list *address_range; | |
718e3744 | 494 | |
d62a17ae | 495 | /* Configured variables. */ |
496 | int external_routing; /* ExternalRoutingCapability. */ | |
497 | int no_summary; /* Don't inject summaries into stub.*/ | |
498 | int shortcut_configured; /* Area configured as shortcut. */ | |
718e3744 | 499 | #define OSPF_SHORTCUT_DEFAULT 0 |
500 | #define OSPF_SHORTCUT_ENABLE 1 | |
501 | #define OSPF_SHORTCUT_DISABLE 2 | |
d62a17ae | 502 | int shortcut_capability; /* Other ABRs agree on S-bit */ |
d7c0a89a | 503 | uint32_t default_cost; /* StubDefaultCost. */ |
d62a17ae | 504 | int auth_type; /* Authentication type. */ |
c317eddb | 505 | int suppress_fa; /* Suppress forwarding address in NSSA ABR */ |
d62a17ae | 506 | |
d7c0a89a | 507 | uint8_t NSSATranslatorRole; /* NSSA configured role */ |
718e3744 | 508 | #define OSPF_NSSA_ROLE_NEVER 0 |
d4a53d58 | 509 | #define OSPF_NSSA_ROLE_CANDIDATE 1 |
510 | #define OSPF_NSSA_ROLE_ALWAYS 2 | |
d7c0a89a | 511 | uint8_t NSSATranslatorState; /* NSSA operational role */ |
d4a53d58 | 512 | #define OSPF_NSSA_TRANSLATE_DISABLED 0 |
513 | #define OSPF_NSSA_TRANSLATE_ENABLED 1 | |
d62a17ae | 514 | int NSSATranslatorStabilityInterval; |
515 | ||
d7c0a89a | 516 | uint8_t transit; /* TransitCapability. */ |
718e3744 | 517 | #define OSPF_TRANSIT_FALSE 0 |
518 | #define OSPF_TRANSIT_TRUE 1 | |
d62a17ae | 519 | struct route_table *ranges; /* Configured Area Ranges. */ |
520 | ||
521 | /* RFC3137 stub router state flags for area */ | |
d7c0a89a | 522 | uint8_t stub_router_state; |
88d6cf37 | 523 | #define OSPF_AREA_ADMIN_STUB_ROUTED (1 << 0) /* admin stub-router set */ |
524 | #define OSPF_AREA_IS_STUB_ROUTED (1 << 1) /* stub-router active */ | |
525 | #define OSPF_AREA_WAS_START_STUB_ROUTED (1 << 2) /* startup SR was done */ | |
d62a17ae | 526 | /* Area related LSDBs[Type1-4]. */ |
527 | struct ospf_lsdb *lsdb; | |
528 | ||
529 | /* Self-originated LSAs. */ | |
530 | struct ospf_lsa *router_lsa_self; | |
531 | struct list *opaque_lsa_self; /* Type-10 Opaque-LSAs */ | |
532 | ||
533 | /* Area announce list. */ | |
534 | struct { | |
535 | char *name; | |
536 | struct access_list *list; | |
537 | } _export; | |
dea04441 PJ |
538 | #define EXPORT_NAME(A) (A)->_export.name |
539 | #define EXPORT_LIST(A) (A)->_export.list | |
718e3744 | 540 | |
d62a17ae | 541 | /* Area acceptance list. */ |
542 | struct { | |
543 | char *name; | |
544 | struct access_list *list; | |
545 | } import; | |
718e3744 | 546 | #define IMPORT_NAME(A) (A)->import.name |
547 | #define IMPORT_LIST(A) (A)->import.list | |
548 | ||
d62a17ae | 549 | /* Type 3 LSA Area prefix-list. */ |
550 | struct { | |
551 | char *name; | |
552 | struct prefix_list *list; | |
553 | } plist_in; | |
718e3744 | 554 | #define PREFIX_LIST_IN(A) (A)->plist_in.list |
555 | #define PREFIX_NAME_IN(A) (A)->plist_in.name | |
556 | ||
d62a17ae | 557 | struct { |
558 | char *name; | |
559 | struct prefix_list *list; | |
560 | } plist_out; | |
718e3744 | 561 | #define PREFIX_LIST_OUT(A) (A)->plist_out.list |
562 | #define PREFIX_NAME_OUT(A) (A)->plist_out.name | |
563 | ||
d62a17ae | 564 | /* Shortest Path Tree. */ |
565 | struct vertex *spf; | |
81443a28 G |
566 | struct list *spf_vertex_list; |
567 | ||
6fc9528e G |
568 | bool spf_dry_run; /* flag for checking if the SPF calculation is |
569 | intended for the local RIB */ | |
570 | bool spf_root_node; /* flag for checking if the calculating node is the | |
571 | root node of the SPF tree */ | |
718e3744 | 572 | |
7fd0729f | 573 | /* TI-LFA protected link for SPF calculations */ |
385a1e07 | 574 | struct protected_resource *spf_protected_resource; |
7fd0729f G |
575 | |
576 | /* P/Q spaces for TI-LFA */ | |
577 | struct p_spaces_head *p_spaces; | |
578 | ||
d62a17ae | 579 | /* Threads. */ |
e6685141 DS |
580 | struct event *t_stub_router; /* Stub-router timer */ |
581 | struct event *t_opaque_lsa_self; /* Type-10 Opaque-LSAs origin. */ | |
718e3744 | 582 | |
d62a17ae | 583 | /* Statistics field. */ |
d7c0a89a | 584 | uint32_t spf_calculation; /* SPF Calculation Count. */ |
718e3744 | 585 | |
133e59cf G |
586 | /* reverse SPF (used for TI-LFA Q spaces) */ |
587 | bool spf_reversed; | |
588 | ||
d62a17ae | 589 | /* Time stamps. */ |
590 | struct timeval ts_spf; /* SPF calculation time stamp. */ | |
cf744958 | 591 | |
d62a17ae | 592 | /* Router count. */ |
d7c0a89a QY |
593 | uint32_t abr_count; /* ABR router in this area. */ |
594 | uint32_t asbr_count; /* ASBR router in this area. */ | |
718e3744 | 595 | |
d62a17ae | 596 | /* Counters. */ |
d7c0a89a QY |
597 | uint32_t act_ints; /* Active interfaces. */ |
598 | uint32_t full_nbrs; /* Fully adjacent neighbors. */ | |
599 | uint32_t full_vls; /* Fully adjacent virtual neighbors. */ | |
6f7bbc0c MN |
600 | |
601 | struct ospf_area_fr_info fr_info; /* Flood reduction info. */ | |
718e3744 | 602 | }; |
603 | ||
604 | /* OSPF config network structure. */ | |
d62a17ae | 605 | struct ospf_network { |
606 | /* Area ID. */ | |
607 | struct in_addr area_id; | |
608 | int area_id_fmt; | |
718e3744 | 609 | }; |
610 | ||
611 | /* OSPF NBMA neighbor structure. */ | |
d62a17ae | 612 | struct ospf_nbr_nbma { |
613 | /* Neighbor IP address. */ | |
614 | struct in_addr addr; | |
718e3744 | 615 | |
d62a17ae | 616 | /* OSPF interface. */ |
617 | struct ospf_interface *oi; | |
718e3744 | 618 | |
d62a17ae | 619 | /* OSPF neighbor structure. */ |
620 | struct ospf_neighbor *nbr; | |
718e3744 | 621 | |
d62a17ae | 622 | /* Neighbor priority. */ |
d7c0a89a | 623 | uint8_t priority; |
718e3744 | 624 | |
d62a17ae | 625 | /* Poll timer value. */ |
d7c0a89a | 626 | uint32_t v_poll; |
718e3744 | 627 | |
d62a17ae | 628 | /* Poll timer thread. */ |
e6685141 | 629 | struct event *t_poll; |
718e3744 | 630 | |
d62a17ae | 631 | /* State change. */ |
d7c0a89a | 632 | uint32_t state_change; |
718e3744 | 633 | }; |
634 | ||
635 | /* Macro. */ | |
d62a17ae | 636 | #define OSPF_AREA_SAME(X, Y) \ |
637 | (memcmp((X->area_id), (Y->area_id), IPV4_MAX_BYTELEN) == 0) | |
718e3744 | 638 | |
020709f9 | 639 | #define IS_OSPF_ABR(O) ((O)->flags & OSPF_FLAG_ABR) |
640 | #define IS_OSPF_ASBR(O) ((O)->flags & OSPF_FLAG_ASBR) | |
718e3744 | 641 | |
642 | #define OSPF_IS_AREA_ID_BACKBONE(I) ((I).s_addr == OSPF_AREA_BACKBONE) | |
643 | #define OSPF_IS_AREA_BACKBONE(A) OSPF_IS_AREA_ID_BACKBONE ((A)->area_id) | |
644 | ||
645 | #ifdef roundup | |
646 | # define ROUNDUP(val, gran) roundup(val, gran) | |
d62a17ae | 647 | #else /* roundup */ |
718e3744 | 648 | # define ROUNDUP(val, gran) (((val) - 1 | (gran) - 1) + 1) |
649 | #endif /* roundup */ | |
650 | ||
d62a17ae | 651 | #define LSA_OPTIONS_GET(area) \ |
652 | (((area)->external_routing == OSPF_AREA_DEFAULT) ? OSPF_OPTION_E : 0) | |
653 | #define LSA_OPTIONS_NSSA_GET(area) \ | |
654 | (((area)->external_routing == OSPF_AREA_NSSA) ? OSPF_OPTION_NP : 0) | |
718e3744 | 655 | |
907a2395 DS |
656 | #define OSPF_TIMER_ON(T, F, V) event_add_timer(master, (F), ospf, (V), &(T)) |
657 | #define OSPF_AREA_TIMER_ON(T, F, V) \ | |
658 | event_add_timer(master, (F), area, (V), &(T)) | |
659 | #define OSPF_POLL_TIMER_ON(T, F, V) \ | |
660 | event_add_timer(master, (F), nbr_nbma, (V), &(T)) | |
718e3744 | 661 | |
020709f9 | 662 | /* Extern variables. */ |
663 | extern struct ospf_master *om; | |
409f98ab | 664 | extern unsigned short ospf_instance; |
7ba82f70 | 665 | extern const int ospf_redistributed_proto_max; |
718e3744 | 666 | extern struct zclient *zclient; |
cd9d0537 | 667 | extern struct event_loop *master; |
718e3744 | 668 | extern int ospf_zlog; |
e5c25022 | 669 | extern struct zebra_privs_t ospfd_privs; |
718e3744 | 670 | |
671 | /* Prototypes. */ | |
d7c0a89a | 672 | extern const char *ospf_redist_string(unsigned int route_type); |
2d4093ee | 673 | extern struct ospf *ospf_lookup_instance(unsigned short instance); |
409f98ab | 674 | extern struct ospf *ospf_lookup(unsigned short instance, const char *name); |
c572fbfe DL |
675 | extern struct ospf *ospf_get(unsigned short instance, const char *name, |
676 | bool *created); | |
7fd0729f | 677 | extern struct ospf *ospf_new_alloc(unsigned short instance, const char *name); |
d7c0a89a | 678 | extern struct ospf *ospf_lookup_by_inst_name(unsigned short instance, |
b5a8894d CS |
679 | const char *name); |
680 | extern struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id); | |
cbf32f74 | 681 | extern uint32_t ospf_count_area_params(struct ospf *ospf); |
2d4093ee | 682 | extern void ospf_finish(struct ospf *ospf); |
f91ce319 | 683 | extern void ospf_process_refresh_data(struct ospf *ospf, bool reset); |
d62a17ae | 684 | extern void ospf_router_id_update(struct ospf *ospf); |
f91ce319 MR |
685 | extern void ospf_process_reset(struct ospf *ospf); |
686 | extern void ospf_neighbor_reset(struct ospf *ospf, struct in_addr nbr_id, | |
687 | const char *nbr_str); | |
2d4093ee DS |
688 | extern int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
689 | struct in_addr area_id, int df); | |
690 | extern int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, | |
691 | struct in_addr aread_id); | |
692 | extern int ospf_area_display_format_set(struct ospf *ospf, | |
693 | struct ospf_area *area, int df); | |
694 | extern int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id); | |
695 | extern int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id); | |
696 | extern int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id); | |
697 | extern int ospf_area_no_summary_unset(struct ospf *ospf, | |
698 | struct in_addr area_id); | |
699 | extern int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id); | |
700 | extern int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, | |
701 | int argc); | |
c317eddb | 702 | extern int ospf_area_nssa_suppress_fa_set(struct ospf *ospf, |
703 | struct in_addr area_id); | |
704 | extern int ospf_area_nssa_suppress_fa_unset(struct ospf *ospf, | |
705 | struct in_addr area_id); | |
2d4093ee DS |
706 | extern int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
707 | struct in_addr area_id, int role); | |
708 | extern int ospf_area_export_list_set(struct ospf *ospf, | |
709 | struct ospf_area *area_id, | |
710 | const char *list_name); | |
711 | extern int ospf_area_export_list_unset(struct ospf *ospf, | |
712 | struct ospf_area *area_id); | |
713 | extern int ospf_area_import_list_set(struct ospf *ospf, | |
714 | struct ospf_area *area_id, | |
715 | const char *name); | |
716 | extern int ospf_area_import_list_unset(struct ospf *ospf, | |
717 | struct ospf_area *area_id); | |
718 | extern int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area_id, | |
719 | int mode); | |
720 | extern int ospf_area_shortcut_unset(struct ospf *ospf, | |
721 | struct ospf_area *area_id); | |
722 | extern int ospf_timers_refresh_set(struct ospf *ospf, int interval); | |
723 | extern int ospf_timers_refresh_unset(struct ospf *ospf); | |
f91ce319 | 724 | void ospf_area_lsdb_discard_delete(struct ospf_area *area); |
2d4093ee DS |
725 | extern int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr); |
726 | extern int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr); | |
727 | extern int ospf_nbr_nbma_priority_set(struct ospf *ospf, | |
728 | struct in_addr nbr_addr, | |
729 | uint8_t priority); | |
730 | extern int ospf_nbr_nbma_priority_unset(struct ospf *ospf, | |
731 | struct in_addr nbr_addr); | |
732 | extern int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, | |
733 | struct in_addr nbr_addr, | |
734 | unsigned int interval); | |
735 | extern int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, | |
736 | struct in_addr addr); | |
737 | extern void ospf_if_update(struct ospf *ospf, struct interface *ifp); | |
738 | extern void ospf_ls_upd_queue_empty(struct ospf_interface *oi); | |
d62a17ae | 739 | extern void ospf_terminate(void); |
2d4093ee DS |
740 | extern void ospf_nbr_nbma_if_update(struct ospf *ospf, |
741 | struct ospf_interface *oi); | |
742 | extern struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, | |
743 | struct in_addr nbr_addr); | |
744 | extern int ospf_oi_count(struct interface *ifp); | |
d62a17ae | 745 | |
7fd0729f G |
746 | extern struct ospf_area *ospf_area_new(struct ospf *ospf, |
747 | struct in_addr area_id); | |
2d4093ee DS |
748 | extern struct ospf_area *ospf_area_get(struct ospf *ospf, |
749 | struct in_addr area_id); | |
750 | extern void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id); | |
751 | extern struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, | |
752 | struct in_addr area_id); | |
753 | extern void ospf_area_add_if(struct ospf_area *oa, struct ospf_interface *oi); | |
754 | extern void ospf_area_del_if(struct ospf_area *oa, struct ospf_interface *oi); | |
d62a17ae | 755 | |
2d4093ee DS |
756 | extern void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp); |
757 | extern void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp); | |
d62a17ae | 758 | |
759 | extern void ospf_route_map_init(void); | |
760 | ||
cd9d0537 | 761 | extern void ospf_master_init(struct event_loop *master); |
b5a8894d CS |
762 | extern void ospf_vrf_init(void); |
763 | extern void ospf_vrf_terminate(void); | |
764 | extern void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf); | |
765 | extern void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf); | |
766 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id); | |
2d4093ee | 767 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id); |
7ef56a73 | 768 | |
88b6b28e | 769 | const char *ospf_get_name(const struct ospf *ospf); |
7fd0729f G |
770 | extern struct ospf_interface *add_ospf_interface(struct connected *co, |
771 | struct ospf_area *area); | |
772 | ||
773 | extern int p_spaces_compare_func(const struct p_space *a, | |
774 | const struct p_space *b); | |
775 | extern int q_spaces_compare_func(const struct q_space *a, | |
776 | const struct q_space *b); | |
a623b526 | 777 | |
718e3744 | 778 | #endif /* _ZEBRA_OSPFD_H */ |