xref: /freebsd/contrib/unbound/util/fptr_wlist.c (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1 /*
2  * util/fptr_wlist.c - function pointer whitelists.
3  *
4  * Copyright (c) 2007, NLnet Labs. All rights reserved.
5  *
6  * This software is open source.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * Neither the name of the NLNET LABS nor the names of its contributors may
20  * be used to endorse or promote products derived from this software without
21  * specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 /**
37  * \file
38  *
39  * This file contains functions that check function pointers.
40  * The functions contain a whitelist of known good callback values.
41  * Any other values lead to an error.
42  *
43  * Due to the listing nature, this file violates all the modularization
44  * boundaries in the program.
45  */
46 #include "config.h"
47 #include "util/fptr_wlist.h"
48 #include "util/mini_event.h"
49 #include "services/outside_network.h"
50 #include "services/mesh.h"
51 #include "services/localzone.h"
52 #include "services/authzone.h"
53 #include "services/cache/infra.h"
54 #include "services/cache/rrset.h"
55 #include "services/view.h"
56 #include "dns64/dns64.h"
57 #include "iterator/iterator.h"
58 #include "iterator/iter_fwd.h"
59 #include "validator/validator.h"
60 #include "validator/val_anchor.h"
61 #include "validator/val_nsec3.h"
62 #include "validator/val_sigcrypt.h"
63 #include "validator/val_kentry.h"
64 #include "validator/val_neg.h"
65 #include "validator/autotrust.h"
66 #include "util/data/msgreply.h"
67 #include "util/data/packed_rrset.h"
68 #include "util/storage/slabhash.h"
69 #include "util/storage/dnstree.h"
70 #include "util/locks.h"
71 #include "libunbound/libworker.h"
72 #include "libunbound/context.h"
73 #include "libunbound/worker.h"
74 #include "util/tube.h"
75 #include "util/config_file.h"
76 #ifdef UB_ON_WINDOWS
77 #include "winrc/win_svc.h"
78 #endif
79 #include "respip/respip.h"
80 
81 #ifdef WITH_PYTHONMODULE
82 #include "pythonmod/pythonmod.h"
83 #endif
84 #ifdef WITH_DYNLIBMODULE
85 #include "dynlibmod/dynlibmod.h"
86 #endif
87 #ifdef USE_CACHEDB
88 #include "cachedb/cachedb.h"
89 #endif
90 #ifdef USE_IPSECMOD
91 #include "ipsecmod/ipsecmod.h"
92 #endif
93 #ifdef CLIENT_SUBNET
94 #include "edns-subnet/subnetmod.h"
95 #endif
96 #ifdef USE_IPSET
97 #include "ipset/ipset.h"
98 #endif
99 #ifdef USE_DNSTAP
100 #include "dnstap/dtstream.h"
101 #endif
102 
103 int
104 fptr_whitelist_comm_point(comm_point_callback_type *fptr)
105 {
106 	if(fptr == &worker_handle_request) return 1;
107 	else if(fptr == &outnet_udp_cb) return 1;
108 	else if(fptr == &outnet_tcp_cb) return 1;
109 	else if(fptr == &tube_handle_listen) return 1;
110 	else if(fptr == &auth_xfer_probe_udp_callback) return 1;
111 	else if(fptr == &auth_xfer_transfer_tcp_callback) return 1;
112 	else if(fptr == &auth_xfer_transfer_http_callback) return 1;
113 	return 0;
114 }
115 
116 int
117 fptr_whitelist_comm_point_raw(comm_point_callback_type *fptr)
118 {
119 	if(fptr == &tube_handle_listen) return 1;
120 	else if(fptr == &tube_handle_write) return 1;
121 	else if(fptr == &remote_accept_callback) return 1;
122 	else if(fptr == &remote_control_callback) return 1;
123 	return 0;
124 }
125 
126 int
127 fptr_whitelist_comm_timer(void (*fptr)(void*))
128 {
129 	if(fptr == &pending_udp_timer_cb) return 1;
130 	else if(fptr == &outnet_tcptimer) return 1;
131 	else if(fptr == &pending_udp_timer_delay_cb) return 1;
132 	else if(fptr == &worker_stat_timer_cb) return 1;
133 	else if(fptr == &worker_probe_timer_cb) return 1;
134 #ifdef UB_ON_WINDOWS
135 	else if(fptr == &wsvc_cron_cb) return 1;
136 #endif
137 	else if(fptr == &auth_xfer_timer) return 1;
138 	else if(fptr == &auth_xfer_probe_timer_callback) return 1;
139 	else if(fptr == &auth_xfer_transfer_timer_callback) return 1;
140 	else if(fptr == &mesh_serve_expired_callback) return 1;
141 	else if(fptr == &serviced_timer_cb) return 1;
142 #ifdef USE_DNSTAP
143 	else if(fptr == &mq_wakeup_cb) return 1;
144 #endif
145 	return 0;
146 }
147 
148 int
149 fptr_whitelist_comm_signal(void (*fptr)(int, void*))
150 {
151 	if(fptr == &worker_sighandler) return 1;
152 	return 0;
153 }
154 
155 int fptr_whitelist_start_accept(void (*fptr)(void*))
156 {
157 	if(fptr == &worker_start_accept) return 1;
158 	return 0;
159 }
160 
161 int fptr_whitelist_stop_accept(void (*fptr)(void*))
162 {
163 	if(fptr == &worker_stop_accept) return 1;
164 	return 0;
165 }
166 
167 int
168 fptr_whitelist_event(void (*fptr)(int, short, void *))
169 {
170 	if(fptr == &comm_point_udp_callback) return 1;
171 	else if(fptr == &comm_point_udp_ancil_callback) return 1;
172 	else if(fptr == &comm_point_tcp_accept_callback) return 1;
173 	else if(fptr == &comm_point_tcp_handle_callback) return 1;
174 	else if(fptr == &comm_timer_callback) return 1;
175 	else if(fptr == &comm_signal_callback) return 1;
176 	else if(fptr == &comm_point_local_handle_callback) return 1;
177 	else if(fptr == &comm_point_raw_handle_callback) return 1;
178 	else if(fptr == &tube_handle_signal) return 1;
179 	else if(fptr == &comm_base_handle_slow_accept) return 1;
180 	else if(fptr == &comm_point_http_handle_callback) return 1;
181 #ifdef USE_DNSTAP
182 	else if(fptr == &dtio_output_cb) return 1;
183 	else if(fptr == &dtio_cmd_cb) return 1;
184 	else if(fptr == &dtio_reconnect_timeout_cb) return 1;
185 	else if(fptr == &dtio_stop_timer_cb) return 1;
186 	else if(fptr == &dtio_stop_ev_cb) return 1;
187 	else if(fptr == &dtio_tap_callback) return 1;
188 	else if(fptr == &dtio_mainfdcallback) return 1;
189 #endif
190 #ifdef UB_ON_WINDOWS
191 	else if(fptr == &worker_win_stop_cb) return 1;
192 #endif
193 	return 0;
194 }
195 
196 int
197 fptr_whitelist_pending_udp(comm_point_callback_type *fptr)
198 {
199 	if(fptr == &serviced_udp_callback) return 1;
200 	return 0;
201 }
202 
203 int
204 fptr_whitelist_pending_tcp(comm_point_callback_type *fptr)
205 {
206 	if(fptr == &serviced_tcp_callback) return 1;
207 	return 0;
208 }
209 
210 int
211 fptr_whitelist_serviced_query(comm_point_callback_type *fptr)
212 {
213 	if(fptr == &worker_handle_service_reply) return 1;
214 	else if(fptr == &libworker_handle_service_reply) return 1;
215 	return 0;
216 }
217 
218 int
219 fptr_whitelist_rbtree_cmp(int (*fptr) (const void *, const void *))
220 {
221 	if(fptr == &mesh_state_compare) return 1;
222 	else if(fptr == &mesh_state_ref_compare) return 1;
223 	else if(fptr == &addr_tree_compare) return 1;
224 	else if(fptr == &local_zone_cmp) return 1;
225 	else if(fptr == &local_data_cmp) return 1;
226 	else if(fptr == &fwd_cmp) return 1;
227 	else if(fptr == &pending_cmp) return 1;
228 	else if(fptr == &serviced_cmp) return 1;
229 	else if(fptr == &reuse_cmp) return 1;
230 	else if(fptr == &reuse_id_cmp) return 1;
231 	else if(fptr == &name_tree_compare) return 1;
232 	else if(fptr == &order_lock_cmp) return 1;
233 	else if(fptr == &codeline_cmp) return 1;
234 	else if(fptr == &nsec3_hash_cmp) return 1;
235 	else if(fptr == &mini_ev_cmp) return 1;
236 	else if(fptr == &anchor_cmp) return 1;
237 	else if(fptr == &canonical_tree_compare) return 1;
238 	else if(fptr == &context_query_cmp) return 1;
239 	else if(fptr == &val_neg_data_compare) return 1;
240 	else if(fptr == &val_neg_zone_compare) return 1;
241 	else if(fptr == &probetree_cmp) return 1;
242 	else if(fptr == &replay_var_compare) return 1;
243 	else if(fptr == &view_cmp) return 1;
244 	else if(fptr == &auth_zone_cmp) return 1;
245 	else if(fptr == &auth_data_cmp) return 1;
246 	else if(fptr == &auth_xfer_cmp) return 1;
247 	return 0;
248 }
249 
250 int
251 fptr_whitelist_hash_sizefunc(lruhash_sizefunc_type fptr)
252 {
253 	if(fptr == &msgreply_sizefunc) return 1;
254 	else if(fptr == &ub_rrset_sizefunc) return 1;
255 	else if(fptr == &infra_sizefunc) return 1;
256 	else if(fptr == &key_entry_sizefunc) return 1;
257 	else if(fptr == &rate_sizefunc) return 1;
258 	else if(fptr == &ip_rate_sizefunc) return 1;
259 	else if(fptr == &test_slabhash_sizefunc) return 1;
260 #ifdef CLIENT_SUBNET
261 	else if(fptr == &msg_cache_sizefunc) return 1;
262 #endif
263 #ifdef USE_DNSCRYPT
264 	else if(fptr == &dnsc_shared_secrets_sizefunc) return 1;
265 	else if(fptr == &dnsc_nonces_sizefunc) return 1;
266 #endif
267 	return 0;
268 }
269 
270 int
271 fptr_whitelist_hash_compfunc(lruhash_compfunc_type fptr)
272 {
273 	if(fptr == &query_info_compare) return 1;
274 	else if(fptr == &ub_rrset_compare) return 1;
275 	else if(fptr == &infra_compfunc) return 1;
276 	else if(fptr == &key_entry_compfunc) return 1;
277 	else if(fptr == &rate_compfunc) return 1;
278 	else if(fptr == &ip_rate_compfunc) return 1;
279 	else if(fptr == &test_slabhash_compfunc) return 1;
280 #ifdef USE_DNSCRYPT
281 	else if(fptr == &dnsc_shared_secrets_compfunc) return 1;
282 	else if(fptr == &dnsc_nonces_compfunc) return 1;
283 #endif
284 	return 0;
285 }
286 
287 int
288 fptr_whitelist_hash_delkeyfunc(lruhash_delkeyfunc_type fptr)
289 {
290 	if(fptr == &query_entry_delete) return 1;
291 	else if(fptr == &ub_rrset_key_delete) return 1;
292 	else if(fptr == &infra_delkeyfunc) return 1;
293 	else if(fptr == &key_entry_delkeyfunc) return 1;
294 	else if(fptr == &rate_delkeyfunc) return 1;
295 	else if(fptr == &ip_rate_delkeyfunc) return 1;
296 	else if(fptr == &test_slabhash_delkey) return 1;
297 #ifdef USE_DNSCRYPT
298 	else if(fptr == &dnsc_shared_secrets_delkeyfunc) return 1;
299 	else if(fptr == &dnsc_nonces_delkeyfunc) return 1;
300 #endif
301 	return 0;
302 }
303 
304 int
305 fptr_whitelist_hash_deldatafunc(lruhash_deldatafunc_type fptr)
306 {
307 	if(fptr == &reply_info_delete) return 1;
308 	else if(fptr == &rrset_data_delete) return 1;
309 	else if(fptr == &infra_deldatafunc) return 1;
310 	else if(fptr == &key_entry_deldatafunc) return 1;
311 	else if(fptr == &rate_deldatafunc) return 1;
312 	else if(fptr == &test_slabhash_deldata) return 1;
313 #ifdef CLIENT_SUBNET
314 	else if(fptr == &subnet_data_delete) return 1;
315 #endif
316 #ifdef USE_DNSCRYPT
317 	else if(fptr == &dnsc_shared_secrets_deldatafunc) return 1;
318 	else if(fptr == &dnsc_nonces_deldatafunc) return 1;
319 #endif
320 	return 0;
321 }
322 
323 int
324 fptr_whitelist_hash_markdelfunc(lruhash_markdelfunc_type fptr)
325 {
326 	if(fptr == NULL) return 1;
327 	else if(fptr == &rrset_markdel) return 1;
328 #ifdef CLIENT_SUBNET
329 	else if(fptr == &subnet_markdel) return 1;
330 #endif
331 	return 0;
332 }
333 
334 /** whitelist env->send_query callbacks */
335 int
336 fptr_whitelist_modenv_send_query(struct outbound_entry* (*fptr)(
337 	struct query_info* qinfo, uint16_t flags, int dnssec, int want_dnssec,
338 	int nocaps, int check_ratelimit, struct sockaddr_storage* addr,
339 	socklen_t addrlen, uint8_t* zone, size_t zonelen, int tcp_upstream,
340 	int ssl_upstream, char* tls_auth_name, struct module_qstate* q,
341 	int* was_ratelimited))
342 {
343 	if(fptr == &worker_send_query) return 1;
344 	else if(fptr == &libworker_send_query) return 1;
345 	return 0;
346 }
347 
348 int
349 fptr_whitelist_modenv_detach_subs(void (*fptr)(
350         struct module_qstate* qstate))
351 {
352 	if(fptr == &mesh_detach_subs) return 1;
353 	return 0;
354 }
355 
356 int
357 fptr_whitelist_modenv_attach_sub(int (*fptr)(
358         struct module_qstate* qstate, struct query_info* qinfo,
359         uint16_t qflags, int prime, int valrec, struct module_qstate** newq))
360 {
361 	if(fptr == &mesh_attach_sub) return 1;
362 	return 0;
363 }
364 
365 int
366 fptr_whitelist_modenv_add_sub(int (*fptr)(
367         struct module_qstate* qstate, struct query_info* qinfo,
368         uint16_t qflags, int prime, int valrec, struct module_qstate** newq,
369 	struct mesh_state** sub))
370 {
371 	if(fptr == &mesh_add_sub) return 1;
372 	return 0;
373 }
374 
375 int
376 fptr_whitelist_modenv_kill_sub(void (*fptr)(struct module_qstate* newq))
377 {
378 	if(fptr == &mesh_state_delete) return 1;
379 	return 0;
380 }
381 
382 int
383 fptr_whitelist_modenv_detect_cycle(int (*fptr)(
384 	struct module_qstate* qstate, struct query_info* qinfo,
385 	uint16_t flags, int prime, int valrec))
386 {
387 	if(fptr == &mesh_detect_cycle) return 1;
388 	return 0;
389 }
390 
391 int
392 fptr_whitelist_mod_init(int (*fptr)(struct module_env* env, int id))
393 {
394 	if(fptr == &iter_init) return 1;
395 	else if(fptr == &val_init) return 1;
396 	else if(fptr == &dns64_init) return 1;
397 	else if(fptr == &respip_init) return 1;
398 #ifdef WITH_PYTHONMODULE
399 	else if(fptr == &pythonmod_init) return 1;
400 #endif
401 #ifdef WITH_DYNLIBMODULE
402 	else if(fptr == &dynlibmod_init) return 1;
403 #endif
404 #ifdef USE_CACHEDB
405 	else if(fptr == &cachedb_init) return 1;
406 #endif
407 #ifdef USE_IPSECMOD
408 	else if(fptr == &ipsecmod_init) return 1;
409 #endif
410 #ifdef CLIENT_SUBNET
411 	else if(fptr == &subnetmod_init) return 1;
412 #endif
413 #ifdef USE_IPSET
414 	else if(fptr == &ipset_init) return 1;
415 #endif
416 	return 0;
417 }
418 
419 int
420 fptr_whitelist_mod_deinit(void (*fptr)(struct module_env* env, int id))
421 {
422 	if(fptr == &iter_deinit) return 1;
423 	else if(fptr == &val_deinit) return 1;
424 	else if(fptr == &dns64_deinit) return 1;
425 	else if(fptr == &respip_deinit) return 1;
426 #ifdef WITH_PYTHONMODULE
427 	else if(fptr == &pythonmod_deinit) return 1;
428 #endif
429 #ifdef WITH_DYNLIBMODULE
430 	else if(fptr == &dynlibmod_deinit) return 1;
431 #endif
432 #ifdef USE_CACHEDB
433 	else if(fptr == &cachedb_deinit) return 1;
434 #endif
435 #ifdef USE_IPSECMOD
436 	else if(fptr == &ipsecmod_deinit) return 1;
437 #endif
438 #ifdef CLIENT_SUBNET
439 	else if(fptr == &subnetmod_deinit) return 1;
440 #endif
441 #ifdef USE_IPSET
442 	else if(fptr == &ipset_deinit) return 1;
443 #endif
444 	return 0;
445 }
446 
447 int
448 fptr_whitelist_mod_operate(void (*fptr)(struct module_qstate* qstate,
449         enum module_ev event, int id, struct outbound_entry* outbound))
450 {
451 	if(fptr == &iter_operate) return 1;
452 	else if(fptr == &val_operate) return 1;
453 	else if(fptr == &dns64_operate) return 1;
454 	else if(fptr == &respip_operate) return 1;
455 #ifdef WITH_PYTHONMODULE
456 	else if(fptr == &pythonmod_operate) return 1;
457 #endif
458 #ifdef WITH_DYNLIBMODULE
459 	else if(fptr == &dynlibmod_operate) return 1;
460 #endif
461 #ifdef USE_CACHEDB
462 	else if(fptr == &cachedb_operate) return 1;
463 #endif
464 #ifdef USE_IPSECMOD
465 	else if(fptr == &ipsecmod_operate) return 1;
466 #endif
467 #ifdef CLIENT_SUBNET
468 	else if(fptr == &subnetmod_operate) return 1;
469 #endif
470 #ifdef USE_IPSET
471 	else if(fptr == &ipset_operate) return 1;
472 #endif
473 	return 0;
474 }
475 
476 int
477 fptr_whitelist_mod_inform_super(void (*fptr)(
478         struct module_qstate* qstate, int id, struct module_qstate* super))
479 {
480 	if(fptr == &iter_inform_super) return 1;
481 	else if(fptr == &val_inform_super) return 1;
482 	else if(fptr == &dns64_inform_super) return 1;
483 	else if(fptr == &respip_inform_super) return 1;
484 #ifdef WITH_PYTHONMODULE
485 	else if(fptr == &pythonmod_inform_super) return 1;
486 #endif
487 #ifdef WITH_DYNLIBMODULE
488 	else if(fptr == &dynlibmod_inform_super) return 1;
489 #endif
490 #ifdef USE_CACHEDB
491 	else if(fptr == &cachedb_inform_super) return 1;
492 #endif
493 #ifdef USE_IPSECMOD
494 	else if(fptr == &ipsecmod_inform_super) return 1;
495 #endif
496 #ifdef CLIENT_SUBNET
497 	else if(fptr == &subnetmod_inform_super) return 1;
498 #endif
499 #ifdef USE_IPSET
500 	else if(fptr == &ipset_inform_super) return 1;
501 #endif
502 	return 0;
503 }
504 
505 int
506 fptr_whitelist_mod_clear(void (*fptr)(struct module_qstate* qstate,
507         int id))
508 {
509 	if(fptr == &iter_clear) return 1;
510 	else if(fptr == &val_clear) return 1;
511 	else if(fptr == &dns64_clear) return 1;
512 	else if(fptr == &respip_clear) return 1;
513 #ifdef WITH_PYTHONMODULE
514 	else if(fptr == &pythonmod_clear) return 1;
515 #endif
516 #ifdef WITH_DYNLIBMODULE
517 	else if(fptr == &dynlibmod_clear) return 1;
518 #endif
519 #ifdef USE_CACHEDB
520 	else if(fptr == &cachedb_clear) return 1;
521 #endif
522 #ifdef USE_IPSECMOD
523 	else if(fptr == &ipsecmod_clear) return 1;
524 #endif
525 #ifdef CLIENT_SUBNET
526 	else if(fptr == &subnetmod_clear) return 1;
527 #endif
528 #ifdef USE_IPSET
529 	else if(fptr == &ipset_clear) return 1;
530 #endif
531 	return 0;
532 }
533 
534 int
535 fptr_whitelist_mod_get_mem(size_t (*fptr)(struct module_env* env, int id))
536 {
537 	if(fptr == &iter_get_mem) return 1;
538 	else if(fptr == &val_get_mem) return 1;
539 	else if(fptr == &dns64_get_mem) return 1;
540 	else if(fptr == &respip_get_mem) return 1;
541 #ifdef WITH_PYTHONMODULE
542 	else if(fptr == &pythonmod_get_mem) return 1;
543 #endif
544 #ifdef WITH_DYNLIBMODULE
545 	else if(fptr == &dynlibmod_get_mem) return 1;
546 #endif
547 #ifdef USE_CACHEDB
548 	else if(fptr == &cachedb_get_mem) return 1;
549 #endif
550 #ifdef USE_IPSECMOD
551 	else if(fptr == &ipsecmod_get_mem) return 1;
552 #endif
553 #ifdef CLIENT_SUBNET
554 	else if(fptr == &subnetmod_get_mem) return 1;
555 #endif
556 #ifdef USE_IPSET
557 	else if(fptr == &ipset_get_mem) return 1;
558 #endif
559 	return 0;
560 }
561 
562 int
563 fptr_whitelist_alloc_cleanup(void (*fptr)(void*))
564 {
565 	if(fptr == &worker_alloc_cleanup) return 1;
566 	return 0;
567 }
568 
569 int fptr_whitelist_tube_listen(tube_callback_type* fptr)
570 {
571 	if(fptr == &worker_handle_control_cmd) return 1;
572 	else if(fptr == &libworker_handle_control_cmd) return 1;
573 	return 0;
574 }
575 
576 int fptr_whitelist_mesh_cb(mesh_cb_func_type fptr)
577 {
578 	if(fptr == &libworker_fg_done_cb) return 1;
579 	else if(fptr == &libworker_bg_done_cb) return 1;
580 	else if(fptr == &libworker_event_done_cb) return 1;
581 	else if(fptr == &probe_answer_cb) return 1;
582 	else if(fptr == &auth_xfer_probe_lookup_callback) return 1;
583 	else if(fptr == &auth_xfer_transfer_lookup_callback) return 1;
584 	else if(fptr == &auth_zonemd_dnskey_lookup_callback) return 1;
585 	return 0;
586 }
587 
588 int fptr_whitelist_print_func(void (*fptr)(char*,void*))
589 {
590 	if(fptr == &config_print_func) return 1;
591 	else if(fptr == &config_collate_func) return 1;
592 	else if(fptr == &remote_get_opt_ssl) return 1;
593 	return 0;
594 }
595 
596 int fptr_whitelist_inplace_cb_reply_generic(inplace_cb_reply_func_type* fptr,
597 	enum inplace_cb_list_type type)
598 {
599 #ifndef WITH_PYTHONMODULE
600 	(void)fptr;
601 #endif
602 	if(type == inplace_cb_reply) {
603 #ifdef WITH_PYTHONMODULE
604 		if(fptr == &python_inplace_cb_reply_generic) return 1;
605 #endif
606 #ifdef WITH_DYNLIBMODULE
607 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
608 #endif
609 	} else if(type == inplace_cb_reply_cache) {
610 #ifdef WITH_PYTHONMODULE
611 		if(fptr == &python_inplace_cb_reply_generic) return 1;
612 #endif
613 #ifdef WITH_DYNLIBMODULE
614 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
615 #endif
616 	} else if(type == inplace_cb_reply_local) {
617 #ifdef WITH_PYTHONMODULE
618 		if(fptr == &python_inplace_cb_reply_generic) return 1;
619 #endif
620 #ifdef WITH_DYNLIBMODULE
621 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
622 #endif
623 	} else if(type == inplace_cb_reply_servfail) {
624 #ifdef WITH_PYTHONMODULE
625 		if(fptr == &python_inplace_cb_reply_generic) return 1;
626 #endif
627 #ifdef WITH_DYNLIBMODULE
628 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
629 #endif
630 	}
631 	return 0;
632 }
633 
634 int fptr_whitelist_inplace_cb_query(inplace_cb_query_func_type* fptr)
635 {
636 #ifdef CLIENT_SUBNET
637 	if(fptr == &ecs_whitelist_check)
638 		return 1;
639 #endif
640 #ifdef WITH_PYTHONMODULE
641         if(fptr == &python_inplace_cb_query_generic)
642                 return 1;
643 #endif
644 #ifdef WITH_DYNLIBMODULE
645         if(fptr == &dynlib_inplace_cb_query_generic)
646                 return 1;
647 #endif
648 	(void)fptr;
649 	return 0;
650 }
651 
652 int fptr_whitelist_inplace_cb_edns_back_parsed(
653 	inplace_cb_edns_back_parsed_func_type* fptr)
654 {
655 #ifdef CLIENT_SUBNET
656 	if(fptr == &ecs_edns_back_parsed)
657 		return 1;
658 #else
659 	(void)fptr;
660 #endif
661 #ifdef WITH_DYNLIBMODULE
662     if(fptr == &dynlib_inplace_cb_edns_back_parsed)
663             return 1;
664 #endif
665 	return 0;
666 }
667 
668 int fptr_whitelist_inplace_cb_query_response(
669 	inplace_cb_query_response_func_type* fptr)
670 {
671 #ifdef CLIENT_SUBNET
672 	if(fptr == &ecs_query_response)
673 		return 1;
674 #else
675 	(void)fptr;
676 #endif
677 #ifdef WITH_DYNLIBMODULE
678     if(fptr == &dynlib_inplace_cb_query_response)
679             return 1;
680 #endif
681 	return 0;
682 }
683 
684 int fptr_whitelist_serve_expired_lookup(serve_expired_lookup_func_type* fptr)
685 {
686 	if(fptr == &mesh_serve_expired_lookup)
687 		return 1;
688 	return 0;
689 }
690