xref: /freebsd/contrib/unbound/util/fptr_wlist.c (revision 4b9d6057)
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 #if defined(AF_INET6) && defined(IPV6_PKTINFO) && defined(HAVE_RECVMSG)
172 	else if(fptr == &comm_point_udp_ancil_callback) return 1;
173 #endif
174 	else if(fptr == &comm_point_tcp_accept_callback) return 1;
175 	else if(fptr == &comm_point_tcp_handle_callback) return 1;
176 	else if(fptr == &comm_timer_callback) return 1;
177 	else if(fptr == &comm_signal_callback) return 1;
178 	else if(fptr == &comm_point_local_handle_callback) return 1;
179 	else if(fptr == &comm_point_raw_handle_callback) return 1;
180 	else if(fptr == &tube_handle_signal) return 1;
181 	else if(fptr == &comm_base_handle_slow_accept) return 1;
182 	else if(fptr == &comm_point_http_handle_callback) return 1;
183 #ifdef USE_DNSTAP
184 	else if(fptr == &dtio_output_cb) return 1;
185 	else if(fptr == &dtio_cmd_cb) return 1;
186 	else if(fptr == &dtio_reconnect_timeout_cb) return 1;
187 	else if(fptr == &dtio_stop_timer_cb) return 1;
188 	else if(fptr == &dtio_stop_ev_cb) return 1;
189 	else if(fptr == &dtio_tap_callback) return 1;
190 	else if(fptr == &dtio_mainfdcallback) return 1;
191 #endif
192 #ifdef UB_ON_WINDOWS
193 	else if(fptr == &worker_win_stop_cb) return 1;
194 #endif
195 	return 0;
196 }
197 
198 int
199 fptr_whitelist_pending_udp(comm_point_callback_type *fptr)
200 {
201 	if(fptr == &serviced_udp_callback) return 1;
202 	return 0;
203 }
204 
205 int
206 fptr_whitelist_pending_tcp(comm_point_callback_type *fptr)
207 {
208 	if(fptr == &serviced_tcp_callback) return 1;
209 	return 0;
210 }
211 
212 int
213 fptr_whitelist_serviced_query(comm_point_callback_type *fptr)
214 {
215 	if(fptr == &worker_handle_service_reply) return 1;
216 	else if(fptr == &libworker_handle_service_reply) return 1;
217 	return 0;
218 }
219 
220 int
221 fptr_whitelist_rbtree_cmp(int (*fptr) (const void *, const void *))
222 {
223 	if(fptr == &mesh_state_compare) return 1;
224 	else if(fptr == &mesh_state_ref_compare) return 1;
225 	else if(fptr == &addr_tree_compare) return 1;
226 	else if(fptr == &addr_tree_addrport_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, int check_ratelimit, struct sockaddr_storage* addr,
342 	socklen_t addrlen, uint8_t* zone, size_t zonelen, int tcp_upstream,
343 	int ssl_upstream, char* tls_auth_name, struct module_qstate* q,
344 	int* was_ratelimited))
345 {
346 	if(fptr == &worker_send_query) return 1;
347 	else if(fptr == &libworker_send_query) return 1;
348 	return 0;
349 }
350 
351 int
352 fptr_whitelist_modenv_detach_subs(void (*fptr)(
353         struct module_qstate* qstate))
354 {
355 	if(fptr == &mesh_detach_subs) return 1;
356 	return 0;
357 }
358 
359 int
360 fptr_whitelist_modenv_attach_sub(int (*fptr)(
361         struct module_qstate* qstate, struct query_info* qinfo,
362         uint16_t qflags, int prime, int valrec, struct module_qstate** newq))
363 {
364 	if(fptr == &mesh_attach_sub) return 1;
365 	return 0;
366 }
367 
368 int
369 fptr_whitelist_modenv_add_sub(int (*fptr)(
370         struct module_qstate* qstate, struct query_info* qinfo,
371         uint16_t qflags, int prime, int valrec, struct module_qstate** newq,
372 	struct mesh_state** sub))
373 {
374 	if(fptr == &mesh_add_sub) return 1;
375 	return 0;
376 }
377 
378 int
379 fptr_whitelist_modenv_kill_sub(void (*fptr)(struct module_qstate* newq))
380 {
381 	if(fptr == &mesh_state_delete) return 1;
382 	return 0;
383 }
384 
385 int
386 fptr_whitelist_modenv_detect_cycle(int (*fptr)(
387 	struct module_qstate* qstate, struct query_info* qinfo,
388 	uint16_t flags, int prime, int valrec))
389 {
390 	if(fptr == &mesh_detect_cycle) return 1;
391 	return 0;
392 }
393 
394 int
395 fptr_whitelist_mod_init(int (*fptr)(struct module_env* env, int id))
396 {
397 	if(fptr == &iter_init) return 1;
398 	else if(fptr == &val_init) return 1;
399 	else if(fptr == &dns64_init) return 1;
400 	else if(fptr == &respip_init) return 1;
401 #ifdef WITH_PYTHONMODULE
402 	else if(fptr == &pythonmod_init) return 1;
403 #endif
404 #ifdef WITH_DYNLIBMODULE
405 	else if(fptr == &dynlibmod_init) return 1;
406 #endif
407 #ifdef USE_CACHEDB
408 	else if(fptr == &cachedb_init) return 1;
409 #endif
410 #ifdef USE_IPSECMOD
411 	else if(fptr == &ipsecmod_init) return 1;
412 #endif
413 #ifdef CLIENT_SUBNET
414 	else if(fptr == &subnetmod_init) return 1;
415 #endif
416 #ifdef USE_IPSET
417 	else if(fptr == &ipset_init) return 1;
418 #endif
419 	return 0;
420 }
421 
422 int
423 fptr_whitelist_mod_deinit(void (*fptr)(struct module_env* env, int id))
424 {
425 	if(fptr == &iter_deinit) return 1;
426 	else if(fptr == &val_deinit) return 1;
427 	else if(fptr == &dns64_deinit) return 1;
428 	else if(fptr == &respip_deinit) return 1;
429 #ifdef WITH_PYTHONMODULE
430 	else if(fptr == &pythonmod_deinit) return 1;
431 #endif
432 #ifdef WITH_DYNLIBMODULE
433 	else if(fptr == &dynlibmod_deinit) return 1;
434 #endif
435 #ifdef USE_CACHEDB
436 	else if(fptr == &cachedb_deinit) return 1;
437 #endif
438 #ifdef USE_IPSECMOD
439 	else if(fptr == &ipsecmod_deinit) return 1;
440 #endif
441 #ifdef CLIENT_SUBNET
442 	else if(fptr == &subnetmod_deinit) return 1;
443 #endif
444 #ifdef USE_IPSET
445 	else if(fptr == &ipset_deinit) return 1;
446 #endif
447 	return 0;
448 }
449 
450 int
451 fptr_whitelist_mod_operate(void (*fptr)(struct module_qstate* qstate,
452         enum module_ev event, int id, struct outbound_entry* outbound))
453 {
454 	if(fptr == &iter_operate) return 1;
455 	else if(fptr == &val_operate) return 1;
456 	else if(fptr == &dns64_operate) return 1;
457 	else if(fptr == &respip_operate) return 1;
458 #ifdef WITH_PYTHONMODULE
459 	else if(fptr == &pythonmod_operate) return 1;
460 #endif
461 #ifdef WITH_DYNLIBMODULE
462 	else if(fptr == &dynlibmod_operate) return 1;
463 #endif
464 #ifdef USE_CACHEDB
465 	else if(fptr == &cachedb_operate) return 1;
466 #endif
467 #ifdef USE_IPSECMOD
468 	else if(fptr == &ipsecmod_operate) return 1;
469 #endif
470 #ifdef CLIENT_SUBNET
471 	else if(fptr == &subnetmod_operate) return 1;
472 #endif
473 #ifdef USE_IPSET
474 	else if(fptr == &ipset_operate) return 1;
475 #endif
476 	return 0;
477 }
478 
479 int
480 fptr_whitelist_mod_inform_super(void (*fptr)(
481         struct module_qstate* qstate, int id, struct module_qstate* super))
482 {
483 	if(fptr == &iter_inform_super) return 1;
484 	else if(fptr == &val_inform_super) return 1;
485 	else if(fptr == &dns64_inform_super) return 1;
486 	else if(fptr == &respip_inform_super) return 1;
487 #ifdef WITH_PYTHONMODULE
488 	else if(fptr == &pythonmod_inform_super) return 1;
489 #endif
490 #ifdef WITH_DYNLIBMODULE
491 	else if(fptr == &dynlibmod_inform_super) return 1;
492 #endif
493 #ifdef USE_CACHEDB
494 	else if(fptr == &cachedb_inform_super) return 1;
495 #endif
496 #ifdef USE_IPSECMOD
497 	else if(fptr == &ipsecmod_inform_super) return 1;
498 #endif
499 #ifdef CLIENT_SUBNET
500 	else if(fptr == &subnetmod_inform_super) return 1;
501 #endif
502 #ifdef USE_IPSET
503 	else if(fptr == &ipset_inform_super) return 1;
504 #endif
505 	return 0;
506 }
507 
508 int
509 fptr_whitelist_mod_clear(void (*fptr)(struct module_qstate* qstate,
510         int id))
511 {
512 	if(fptr == &iter_clear) return 1;
513 	else if(fptr == &val_clear) return 1;
514 	else if(fptr == &dns64_clear) return 1;
515 	else if(fptr == &respip_clear) return 1;
516 #ifdef WITH_PYTHONMODULE
517 	else if(fptr == &pythonmod_clear) return 1;
518 #endif
519 #ifdef WITH_DYNLIBMODULE
520 	else if(fptr == &dynlibmod_clear) return 1;
521 #endif
522 #ifdef USE_CACHEDB
523 	else if(fptr == &cachedb_clear) return 1;
524 #endif
525 #ifdef USE_IPSECMOD
526 	else if(fptr == &ipsecmod_clear) return 1;
527 #endif
528 #ifdef CLIENT_SUBNET
529 	else if(fptr == &subnetmod_clear) return 1;
530 #endif
531 #ifdef USE_IPSET
532 	else if(fptr == &ipset_clear) return 1;
533 #endif
534 	return 0;
535 }
536 
537 int
538 fptr_whitelist_mod_get_mem(size_t (*fptr)(struct module_env* env, int id))
539 {
540 	if(fptr == &iter_get_mem) return 1;
541 	else if(fptr == &val_get_mem) return 1;
542 	else if(fptr == &dns64_get_mem) return 1;
543 	else if(fptr == &respip_get_mem) return 1;
544 #ifdef WITH_PYTHONMODULE
545 	else if(fptr == &pythonmod_get_mem) return 1;
546 #endif
547 #ifdef WITH_DYNLIBMODULE
548 	else if(fptr == &dynlibmod_get_mem) return 1;
549 #endif
550 #ifdef USE_CACHEDB
551 	else if(fptr == &cachedb_get_mem) return 1;
552 #endif
553 #ifdef USE_IPSECMOD
554 	else if(fptr == &ipsecmod_get_mem) return 1;
555 #endif
556 #ifdef CLIENT_SUBNET
557 	else if(fptr == &subnetmod_get_mem) return 1;
558 #endif
559 #ifdef USE_IPSET
560 	else if(fptr == &ipset_get_mem) return 1;
561 #endif
562 	return 0;
563 }
564 
565 int
566 fptr_whitelist_alloc_cleanup(void (*fptr)(void*))
567 {
568 	if(fptr == &worker_alloc_cleanup) return 1;
569 	return 0;
570 }
571 
572 int fptr_whitelist_tube_listen(tube_callback_type* fptr)
573 {
574 	if(fptr == &worker_handle_control_cmd) return 1;
575 	else if(fptr == &libworker_handle_control_cmd) return 1;
576 	return 0;
577 }
578 
579 int fptr_whitelist_mesh_cb(mesh_cb_func_type fptr)
580 {
581 	if(fptr == &libworker_fg_done_cb) return 1;
582 	else if(fptr == &libworker_bg_done_cb) return 1;
583 	else if(fptr == &libworker_event_done_cb) return 1;
584 	else if(fptr == &probe_answer_cb) return 1;
585 	else if(fptr == &auth_xfer_probe_lookup_callback) return 1;
586 	else if(fptr == &auth_xfer_transfer_lookup_callback) return 1;
587 	else if(fptr == &auth_zonemd_dnskey_lookup_callback) return 1;
588 	return 0;
589 }
590 
591 int fptr_whitelist_print_func(void (*fptr)(char*,void*))
592 {
593 	if(fptr == &config_print_func) return 1;
594 	else if(fptr == &config_collate_func) return 1;
595 	else if(fptr == &remote_get_opt_ssl) return 1;
596 	return 0;
597 }
598 
599 int fptr_whitelist_inplace_cb_reply_generic(inplace_cb_reply_func_type* fptr,
600 	enum inplace_cb_list_type type)
601 {
602 #ifndef WITH_PYTHONMODULE
603 	(void)fptr;
604 #endif
605 	if(type == inplace_cb_reply) {
606 #ifdef WITH_PYTHONMODULE
607 		if(fptr == &python_inplace_cb_reply_generic) return 1;
608 #endif
609 #ifdef WITH_DYNLIBMODULE
610 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
611 #endif
612 	} else if(type == inplace_cb_reply_cache) {
613 #ifdef WITH_PYTHONMODULE
614 		if(fptr == &python_inplace_cb_reply_generic) return 1;
615 #endif
616 #ifdef WITH_DYNLIBMODULE
617 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
618 #endif
619 	} else if(type == inplace_cb_reply_local) {
620 #ifdef WITH_PYTHONMODULE
621 		if(fptr == &python_inplace_cb_reply_generic) return 1;
622 #endif
623 #ifdef WITH_DYNLIBMODULE
624 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
625 #endif
626 	} else if(type == inplace_cb_reply_servfail) {
627 #ifdef WITH_PYTHONMODULE
628 		if(fptr == &python_inplace_cb_reply_generic) return 1;
629 #endif
630 #ifdef WITH_DYNLIBMODULE
631 		if(fptr == &dynlib_inplace_cb_reply_generic) return 1;
632 #endif
633 	}
634 	return 0;
635 }
636 
637 int fptr_whitelist_inplace_cb_query(inplace_cb_query_func_type* fptr)
638 {
639 #ifdef CLIENT_SUBNET
640 	if(fptr == &ecs_whitelist_check)
641 		return 1;
642 #endif
643 #ifdef WITH_PYTHONMODULE
644         if(fptr == &python_inplace_cb_query_generic)
645                 return 1;
646 #endif
647 #ifdef WITH_DYNLIBMODULE
648         if(fptr == &dynlib_inplace_cb_query_generic)
649                 return 1;
650 #endif
651 	(void)fptr;
652 	return 0;
653 }
654 
655 int fptr_whitelist_inplace_cb_edns_back_parsed(
656 	inplace_cb_edns_back_parsed_func_type* fptr)
657 {
658 #ifdef CLIENT_SUBNET
659 	if(fptr == &ecs_edns_back_parsed)
660 		return 1;
661 #else
662 	(void)fptr;
663 #endif
664 #ifdef WITH_PYTHONMODULE
665     if(fptr == &python_inplace_cb_edns_back_parsed_call)
666         return 1;
667 #endif
668 #ifdef WITH_DYNLIBMODULE
669     if(fptr == &dynlib_inplace_cb_edns_back_parsed)
670             return 1;
671 #endif
672 	return 0;
673 }
674 
675 int fptr_whitelist_inplace_cb_query_response(
676 	inplace_cb_query_response_func_type* fptr)
677 {
678 #ifdef CLIENT_SUBNET
679 	if(fptr == &ecs_query_response)
680 		return 1;
681 #else
682 	(void)fptr;
683 #endif
684 #ifdef WITH_PYTHONMODULE
685     if(fptr == &python_inplace_cb_query_response)
686         return 1;
687 #endif
688 #ifdef WITH_DYNLIBMODULE
689     if(fptr == &dynlib_inplace_cb_query_response)
690             return 1;
691 #endif
692 	return 0;
693 }
694 
695 int fptr_whitelist_serve_expired_lookup(serve_expired_lookup_func_type* fptr)
696 {
697 	if(fptr == &mesh_serve_expired_lookup)
698 		return 1;
699 	return 0;
700 }
701