xref: /freebsd/contrib/unbound/util/fptr_wlist.c (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
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 #ifdef USE_DNSTAP
142 	else if(fptr == &mq_wakeup_cb) return 1;
143 #endif
144 	return 0;
145 }
146 
147 int
148 fptr_whitelist_comm_signal(void (*fptr)(int, void*))
149 {
150 	if(fptr == &worker_sighandler) return 1;
151 	return 0;
152 }
153 
154 int fptr_whitelist_start_accept(void (*fptr)(void*))
155 {
156 	if(fptr == &worker_start_accept) return 1;
157 	return 0;
158 }
159 
160 int fptr_whitelist_stop_accept(void (*fptr)(void*))
161 {
162 	if(fptr == &worker_stop_accept) return 1;
163 	return 0;
164 }
165 
166 int
167 fptr_whitelist_event(void (*fptr)(int, short, void *))
168 {
169 	if(fptr == &comm_point_udp_callback) return 1;
170 	else if(fptr == &comm_point_udp_ancil_callback) return 1;
171 	else if(fptr == &comm_point_tcp_accept_callback) return 1;
172 	else if(fptr == &comm_point_tcp_handle_callback) return 1;
173 	else if(fptr == &comm_timer_callback) return 1;
174 	else if(fptr == &comm_signal_callback) return 1;
175 	else if(fptr == &comm_point_local_handle_callback) return 1;
176 	else if(fptr == &comm_point_raw_handle_callback) return 1;
177 	else if(fptr == &tube_handle_signal) return 1;
178 	else if(fptr == &comm_base_handle_slow_accept) return 1;
179 	else if(fptr == &comm_point_http_handle_callback) return 1;
180 #ifdef USE_DNSTAP
181 	else if(fptr == &dtio_output_cb) return 1;
182 	else if(fptr == &dtio_cmd_cb) return 1;
183 	else if(fptr == &dtio_reconnect_timeout_cb) return 1;
184 	else if(fptr == &dtio_stop_timer_cb) return 1;
185 	else if(fptr == &dtio_stop_ev_cb) return 1;
186 	else if(fptr == &dtio_tap_callback) return 1;
187 	else if(fptr == &dtio_mainfdcallback) return 1;
188 #endif
189 #ifdef UB_ON_WINDOWS
190 	else if(fptr == &worker_win_stop_cb) return 1;
191 #endif
192 	return 0;
193 }
194 
195 int
196 fptr_whitelist_pending_udp(comm_point_callback_type *fptr)
197 {
198 	if(fptr == &serviced_udp_callback) return 1;
199 	else if(fptr == &worker_handle_reply) return 1;
200 	else if(fptr == &libworker_handle_reply) return 1;
201 	return 0;
202 }
203 
204 int
205 fptr_whitelist_pending_tcp(comm_point_callback_type *fptr)
206 {
207 	if(fptr == &serviced_tcp_callback) return 1;
208 	else if(fptr == &worker_handle_reply) return 1;
209 	else if(fptr == &libworker_handle_reply) return 1;
210 	return 0;
211 }
212 
213 int
214 fptr_whitelist_serviced_query(comm_point_callback_type *fptr)
215 {
216 	if(fptr == &worker_handle_service_reply) return 1;
217 	else if(fptr == &libworker_handle_service_reply) return 1;
218 	return 0;
219 }
220 
221 int
222 fptr_whitelist_rbtree_cmp(int (*fptr) (const void *, const void *))
223 {
224 	if(fptr == &mesh_state_compare) return 1;
225 	else if(fptr == &mesh_state_ref_compare) return 1;
226 	else if(fptr == &addr_tree_compare) return 1;
227 	else if(fptr == &local_zone_cmp) return 1;
228 	else if(fptr == &local_data_cmp) return 1;
229 	else if(fptr == &fwd_cmp) return 1;
230 	else if(fptr == &pending_cmp) return 1;
231 	else if(fptr == &serviced_cmp) return 1;
232 	else if(fptr == &reuse_cmp) return 1;
233 	else if(fptr == &reuse_id_cmp) return 1;
234 	else if(fptr == &name_tree_compare) return 1;
235 	else if(fptr == &order_lock_cmp) return 1;
236 	else if(fptr == &codeline_cmp) return 1;
237 	else if(fptr == &nsec3_hash_cmp) return 1;
238 	else if(fptr == &mini_ev_cmp) return 1;
239 	else if(fptr == &anchor_cmp) return 1;
240 	else if(fptr == &canonical_tree_compare) return 1;
241 	else if(fptr == &context_query_cmp) return 1;
242 	else if(fptr == &val_neg_data_compare) return 1;
243 	else if(fptr == &val_neg_zone_compare) return 1;
244 	else if(fptr == &probetree_cmp) return 1;
245 	else if(fptr == &replay_var_compare) return 1;
246 	else if(fptr == &view_cmp) return 1;
247 	else if(fptr == &auth_zone_cmp) return 1;
248 	else if(fptr == &auth_data_cmp) return 1;
249 	else if(fptr == &auth_xfer_cmp) return 1;
250 	return 0;
251 }
252 
253 int
254 fptr_whitelist_hash_sizefunc(lruhash_sizefunc_type fptr)
255 {
256 	if(fptr == &msgreply_sizefunc) return 1;
257 	else if(fptr == &ub_rrset_sizefunc) return 1;
258 	else if(fptr == &infra_sizefunc) return 1;
259 	else if(fptr == &key_entry_sizefunc) return 1;
260 	else if(fptr == &rate_sizefunc) return 1;
261 	else if(fptr == &ip_rate_sizefunc) return 1;
262 	else if(fptr == &test_slabhash_sizefunc) return 1;
263 #ifdef CLIENT_SUBNET
264 	else if(fptr == &msg_cache_sizefunc) return 1;
265 #endif
266 #ifdef USE_DNSCRYPT
267 	else if(fptr == &dnsc_shared_secrets_sizefunc) return 1;
268 	else if(fptr == &dnsc_nonces_sizefunc) return 1;
269 #endif
270 	return 0;
271 }
272 
273 int
274 fptr_whitelist_hash_compfunc(lruhash_compfunc_type fptr)
275 {
276 	if(fptr == &query_info_compare) return 1;
277 	else if(fptr == &ub_rrset_compare) return 1;
278 	else if(fptr == &infra_compfunc) return 1;
279 	else if(fptr == &key_entry_compfunc) return 1;
280 	else if(fptr == &rate_compfunc) return 1;
281 	else if(fptr == &ip_rate_compfunc) return 1;
282 	else if(fptr == &test_slabhash_compfunc) return 1;
283 #ifdef USE_DNSCRYPT
284 	else if(fptr == &dnsc_shared_secrets_compfunc) return 1;
285 	else if(fptr == &dnsc_nonces_compfunc) return 1;
286 #endif
287 	return 0;
288 }
289 
290 int
291 fptr_whitelist_hash_delkeyfunc(lruhash_delkeyfunc_type fptr)
292 {
293 	if(fptr == &query_entry_delete) return 1;
294 	else if(fptr == &ub_rrset_key_delete) return 1;
295 	else if(fptr == &infra_delkeyfunc) return 1;
296 	else if(fptr == &key_entry_delkeyfunc) return 1;
297 	else if(fptr == &rate_delkeyfunc) return 1;
298 	else if(fptr == &ip_rate_delkeyfunc) return 1;
299 	else if(fptr == &test_slabhash_delkey) return 1;
300 #ifdef USE_DNSCRYPT
301 	else if(fptr == &dnsc_shared_secrets_delkeyfunc) return 1;
302 	else if(fptr == &dnsc_nonces_delkeyfunc) return 1;
303 #endif
304 	return 0;
305 }
306 
307 int
308 fptr_whitelist_hash_deldatafunc(lruhash_deldatafunc_type fptr)
309 {
310 	if(fptr == &reply_info_delete) return 1;
311 	else if(fptr == &rrset_data_delete) return 1;
312 	else if(fptr == &infra_deldatafunc) return 1;
313 	else if(fptr == &key_entry_deldatafunc) return 1;
314 	else if(fptr == &rate_deldatafunc) return 1;
315 	else if(fptr == &test_slabhash_deldata) return 1;
316 #ifdef CLIENT_SUBNET
317 	else if(fptr == &subnet_data_delete) return 1;
318 #endif
319 #ifdef USE_DNSCRYPT
320 	else if(fptr == &dnsc_shared_secrets_deldatafunc) return 1;
321 	else if(fptr == &dnsc_nonces_deldatafunc) return 1;
322 #endif
323 	return 0;
324 }
325 
326 int
327 fptr_whitelist_hash_markdelfunc(lruhash_markdelfunc_type fptr)
328 {
329 	if(fptr == NULL) return 1;
330 	else if(fptr == &rrset_markdel) return 1;
331 #ifdef CLIENT_SUBNET
332 	else if(fptr == &subnet_markdel) return 1;
333 #endif
334 	return 0;
335 }
336 
337 /** whitelist env->send_query callbacks */
338 int
339 fptr_whitelist_modenv_send_query(struct outbound_entry* (*fptr)(
340 	struct query_info* qinfo, uint16_t flags, int dnssec, int want_dnssec,
341 	int nocaps, struct sockaddr_storage* addr, socklen_t addrlen,
342 	uint8_t* zone, size_t zonelen, int ssl_upstream, char* tls_auth_name,
343 	struct module_qstate* q))
344 {
345 	if(fptr == &worker_send_query) return 1;
346 	else if(fptr == &libworker_send_query) return 1;
347 	return 0;
348 }
349 
350 int
351 fptr_whitelist_modenv_detach_subs(void (*fptr)(
352         struct module_qstate* qstate))
353 {
354 	if(fptr == &mesh_detach_subs) return 1;
355 	return 0;
356 }
357 
358 int
359 fptr_whitelist_modenv_attach_sub(int (*fptr)(
360         struct module_qstate* qstate, struct query_info* qinfo,
361         uint16_t qflags, int prime, int valrec, struct module_qstate** newq))
362 {
363 	if(fptr == &mesh_attach_sub) return 1;
364 	return 0;
365 }
366 
367 int
368 fptr_whitelist_modenv_add_sub(int (*fptr)(
369         struct module_qstate* qstate, struct query_info* qinfo,
370         uint16_t qflags, int prime, int valrec, struct module_qstate** newq,
371 	struct mesh_state** sub))
372 {
373 	if(fptr == &mesh_add_sub) return 1;
374 	return 0;
375 }
376 
377 int
378 fptr_whitelist_modenv_kill_sub(void (*fptr)(struct module_qstate* newq))
379 {
380 	if(fptr == &mesh_state_delete) return 1;
381 	return 0;
382 }
383 
384 int
385 fptr_whitelist_modenv_detect_cycle(int (*fptr)(
386 	struct module_qstate* qstate, struct query_info* qinfo,
387 	uint16_t flags, int prime, int valrec))
388 {
389 	if(fptr == &mesh_detect_cycle) return 1;
390 	return 0;
391 }
392 
393 int
394 fptr_whitelist_mod_init(int (*fptr)(struct module_env* env, int id))
395 {
396 	if(fptr == &iter_init) return 1;
397 	else if(fptr == &val_init) return 1;
398 	else if(fptr == &dns64_init) return 1;
399 	else if(fptr == &respip_init) return 1;
400 #ifdef WITH_PYTHONMODULE
401 	else if(fptr == &pythonmod_init) return 1;
402 #endif
403 #ifdef WITH_DYNLIBMODULE
404 	else if(fptr == &dynlibmod_init) return 1;
405 #endif
406 #ifdef USE_CACHEDB
407 	else if(fptr == &cachedb_init) return 1;
408 #endif
409 #ifdef USE_IPSECMOD
410 	else if(fptr == &ipsecmod_init) return 1;
411 #endif
412 #ifdef CLIENT_SUBNET
413 	else if(fptr == &subnetmod_init) return 1;
414 #endif
415 #ifdef USE_IPSET
416 	else if(fptr == &ipset_init) return 1;
417 #endif
418 	return 0;
419 }
420 
421 int
422 fptr_whitelist_mod_deinit(void (*fptr)(struct module_env* env, int id))
423 {
424 	if(fptr == &iter_deinit) return 1;
425 	else if(fptr == &val_deinit) return 1;
426 	else if(fptr == &dns64_deinit) return 1;
427 	else if(fptr == &respip_deinit) return 1;
428 #ifdef WITH_PYTHONMODULE
429 	else if(fptr == &pythonmod_deinit) return 1;
430 #endif
431 #ifdef WITH_DYNLIBMODULE
432 	else if(fptr == &dynlibmod_deinit) return 1;
433 #endif
434 #ifdef USE_CACHEDB
435 	else if(fptr == &cachedb_deinit) return 1;
436 #endif
437 #ifdef USE_IPSECMOD
438 	else if(fptr == &ipsecmod_deinit) return 1;
439 #endif
440 #ifdef CLIENT_SUBNET
441 	else if(fptr == &subnetmod_deinit) return 1;
442 #endif
443 #ifdef USE_IPSET
444 	else if(fptr == &ipset_deinit) return 1;
445 #endif
446 	return 0;
447 }
448 
449 int
450 fptr_whitelist_mod_operate(void (*fptr)(struct module_qstate* qstate,
451         enum module_ev event, int id, struct outbound_entry* outbound))
452 {
453 	if(fptr == &iter_operate) return 1;
454 	else if(fptr == &val_operate) return 1;
455 	else if(fptr == &dns64_operate) return 1;
456 	else if(fptr == &respip_operate) return 1;
457 #ifdef WITH_PYTHONMODULE
458 	else if(fptr == &pythonmod_operate) return 1;
459 #endif
460 #ifdef WITH_DYNLIBMODULE
461 	else if(fptr == &dynlibmod_operate) return 1;
462 #endif
463 #ifdef USE_CACHEDB
464 	else if(fptr == &cachedb_operate) return 1;
465 #endif
466 #ifdef USE_IPSECMOD
467 	else if(fptr == &ipsecmod_operate) return 1;
468 #endif
469 #ifdef CLIENT_SUBNET
470 	else if(fptr == &subnetmod_operate) return 1;
471 #endif
472 #ifdef USE_IPSET
473 	else if(fptr == &ipset_operate) return 1;
474 #endif
475 	return 0;
476 }
477 
478 int
479 fptr_whitelist_mod_inform_super(void (*fptr)(
480         struct module_qstate* qstate, int id, struct module_qstate* super))
481 {
482 	if(fptr == &iter_inform_super) return 1;
483 	else if(fptr == &val_inform_super) return 1;
484 	else if(fptr == &dns64_inform_super) return 1;
485 	else if(fptr == &respip_inform_super) return 1;
486 #ifdef WITH_PYTHONMODULE
487 	else if(fptr == &pythonmod_inform_super) return 1;
488 #endif
489 #ifdef WITH_DYNLIBMODULE
490 	else if(fptr == &dynlibmod_inform_super) return 1;
491 #endif
492 #ifdef USE_CACHEDB
493 	else if(fptr == &cachedb_inform_super) return 1;
494 #endif
495 #ifdef USE_IPSECMOD
496 	else if(fptr == &ipsecmod_inform_super) return 1;
497 #endif
498 #ifdef CLIENT_SUBNET
499 	else if(fptr == &subnetmod_inform_super) return 1;
500 #endif
501 #ifdef USE_IPSET
502 	else if(fptr == &ipset_inform_super) return 1;
503 #endif
504 	return 0;
505 }
506 
507 int
508 fptr_whitelist_mod_clear(void (*fptr)(struct module_qstate* qstate,
509         int id))
510 {
511 	if(fptr == &iter_clear) return 1;
512 	else if(fptr == &val_clear) return 1;
513 	else if(fptr == &dns64_clear) return 1;
514 	else if(fptr == &respip_clear) return 1;
515 #ifdef WITH_PYTHONMODULE
516 	else if(fptr == &pythonmod_clear) return 1;
517 #endif
518 #ifdef WITH_DYNLIBMODULE
519 	else if(fptr == &dynlibmod_clear) return 1;
520 #endif
521 #ifdef USE_CACHEDB
522 	else if(fptr == &cachedb_clear) return 1;
523 #endif
524 #ifdef USE_IPSECMOD
525 	else if(fptr == &ipsecmod_clear) return 1;
526 #endif
527 #ifdef CLIENT_SUBNET
528 	else if(fptr == &subnetmod_clear) return 1;
529 #endif
530 #ifdef USE_IPSET
531 	else if(fptr == &ipset_clear) return 1;
532 #endif
533 	return 0;
534 }
535 
536 int
537 fptr_whitelist_mod_get_mem(size_t (*fptr)(struct module_env* env, int id))
538 {
539 	if(fptr == &iter_get_mem) return 1;
540 	else if(fptr == &val_get_mem) return 1;
541 	else if(fptr == &dns64_get_mem) return 1;
542 	else if(fptr == &respip_get_mem) return 1;
543 #ifdef WITH_PYTHONMODULE
544 	else if(fptr == &pythonmod_get_mem) return 1;
545 #endif
546 #ifdef WITH_DYNLIBMODULE
547 	else if(fptr == &dynlibmod_get_mem) return 1;
548 #endif
549 #ifdef USE_CACHEDB
550 	else if(fptr == &cachedb_get_mem) return 1;
551 #endif
552 #ifdef USE_IPSECMOD
553 	else if(fptr == &ipsecmod_get_mem) return 1;
554 #endif
555 #ifdef CLIENT_SUBNET
556 	else if(fptr == &subnetmod_get_mem) return 1;
557 #endif
558 #ifdef USE_IPSET
559 	else if(fptr == &ipset_get_mem) return 1;
560 #endif
561 	return 0;
562 }
563 
564 int
565 fptr_whitelist_alloc_cleanup(void (*fptr)(void*))
566 {
567 	if(fptr == &worker_alloc_cleanup) return 1;
568 	return 0;
569 }
570 
571 int fptr_whitelist_tube_listen(tube_callback_type* fptr)
572 {
573 	if(fptr == &worker_handle_control_cmd) return 1;
574 	else if(fptr == &libworker_handle_control_cmd) return 1;
575 	return 0;
576 }
577 
578 int fptr_whitelist_mesh_cb(mesh_cb_func_type fptr)
579 {
580 	if(fptr == &libworker_fg_done_cb) return 1;
581 	else if(fptr == &libworker_bg_done_cb) return 1;
582 	else if(fptr == &libworker_event_done_cb) return 1;
583 	else if(fptr == &probe_answer_cb) return 1;
584 	else if(fptr == &auth_xfer_probe_lookup_callback) return 1;
585 	else if(fptr == &auth_xfer_transfer_lookup_callback) return 1;
586 	return 0;
587 }
588 
589 int fptr_whitelist_print_func(void (*fptr)(char*,void*))
590 {
591 	if(fptr == &config_print_func) return 1;
592 	else if(fptr == &config_collate_func) return 1;
593 	else if(fptr == &remote_get_opt_ssl) return 1;
594 	return 0;
595 }
596 
597 int fptr_whitelist_inplace_cb_reply_generic(inplace_cb_reply_func_type* fptr,
598 	enum inplace_cb_list_type type)
599 {
600 #ifndef WITH_PYTHONMODULE
601 	(void)fptr;
602 #endif
603 	if(type == inplace_cb_reply) {
604 #ifdef WITH_PYTHONMODULE
605 		if(fptr == &python_inplace_cb_reply_generic) return 1;
606 #endif
607 #ifdef WITH_DYNLIBMODULE
608 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
609 #endif
610 	} else if(type == inplace_cb_reply_cache) {
611 #ifdef WITH_PYTHONMODULE
612 		if(fptr == &python_inplace_cb_reply_generic) return 1;
613 #endif
614 #ifdef WITH_DYNLIBMODULE
615 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
616 #endif
617 	} else if(type == inplace_cb_reply_local) {
618 #ifdef WITH_PYTHONMODULE
619 		if(fptr == &python_inplace_cb_reply_generic) return 1;
620 #endif
621 #ifdef WITH_DYNLIBMODULE
622 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
623 #endif
624 	} else if(type == inplace_cb_reply_servfail) {
625 #ifdef WITH_PYTHONMODULE
626 		if(fptr == &python_inplace_cb_reply_generic) return 1;
627 #endif
628 #ifdef WITH_DYNLIBMODULE
629 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
630 #endif
631 	}
632 	return 0;
633 }
634 
635 int fptr_whitelist_inplace_cb_query(inplace_cb_query_func_type* fptr)
636 {
637 #ifdef CLIENT_SUBNET
638 	if(fptr == &ecs_whitelist_check)
639 		return 1;
640 #endif
641 #ifdef WITH_PYTHONMODULE
642         if(fptr == &python_inplace_cb_query_generic)
643                 return 1;
644 #endif
645 #ifdef WITH_DYNLIBMODULE
646         if(fptr == &dynlib_inplace_cb_query_generic)
647                 return 1;
648 #endif
649 	(void)fptr;
650 	return 0;
651 }
652 
653 int fptr_whitelist_inplace_cb_edns_back_parsed(
654 	inplace_cb_edns_back_parsed_func_type* fptr)
655 {
656 #ifdef CLIENT_SUBNET
657 	if(fptr == &ecs_edns_back_parsed)
658 		return 1;
659 #else
660 	(void)fptr;
661 #endif
662 #ifdef WITH_DYNLIBMODULE
663     if(fptr == &dynlib_inplace_cb_edns_back_parsed)
664             return 1;
665 #endif
666 	return 0;
667 }
668 
669 int fptr_whitelist_inplace_cb_query_response(
670 	inplace_cb_query_response_func_type* fptr)
671 {
672 #ifdef CLIENT_SUBNET
673 	if(fptr == &ecs_query_response)
674 		return 1;
675 #else
676 	(void)fptr;
677 #endif
678 #ifdef WITH_DYNLIBMODULE
679     if(fptr == &dynlib_inplace_cb_query_response)
680             return 1;
681 #endif
682 	return 0;
683 }
684 
685 int fptr_whitelist_serve_expired_lookup(serve_expired_lookup_func_type* fptr)
686 {
687 	if(fptr == &mesh_serve_expired_lookup)
688 		return 1;
689 	return 0;
690 }
691