2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include <openssl/core.h>
12 #include <openssl/core_dispatch.h>
13 #include <openssl/core_names.h>
14 #include <openssl/provider.h>
15 #include <openssl/params.h>
16 #include <openssl/opensslv.h>
17 #include "crypto/cryptlib.h"
18 #include "crypto/evp.h" /* evp_method_store_flush */
19 #include "crypto/rand.h"
20 #include "internal/nelem.h"
21 #include "internal/thread_once.h"
22 #include "internal/provider.h"
23 #include "internal/refcount.h"
24 #include "internal/bio.h"
25 #include "internal/core.h"
26 #include "provider_local.h"
28 # include <openssl/self_test.h>
31 static OSSL_PROVIDER *provider_new(const char *name,
32 OSSL_provider_init_fn *init_function);
35 * Provider Object structure
36 * =========================
43 DEFINE_STACK_OF(INFOPAIR)
47 int (*create_cb)(const OSSL_CORE_HANDLE *provider, void *cbdata);
48 void (*remove_cb)(const OSSL_CORE_HANDLE *provider, void *cbdata);
50 } OSSL_PROVIDER_CHILD_CB;
51 DEFINE_STACK_OF(OSSL_PROVIDER_CHILD_CB)
53 struct provider_store_st; /* Forward declaration */
55 struct ossl_provider_st {
57 unsigned int flag_initialized:1;
58 unsigned int flag_activated:1;
59 unsigned int flag_fallback:1; /* Can be used as fallback */
61 /* Getting and setting the flags require synchronization */
62 CRYPTO_RWLOCK *flag_lock;
64 /* OpenSSL library side data */
65 CRYPTO_REF_COUNT refcnt;
66 CRYPTO_RWLOCK *refcnt_lock; /* For the ref counter */
71 OSSL_provider_init_fn *init_function;
72 STACK_OF(INFOPAIR) *parameters;
73 OSSL_LIB_CTX *libctx; /* The library context this instance is in */
74 struct provider_store_st *store; /* The store this instance belongs to */
77 * In the FIPS module inner provider, this isn't needed, since the
78 * error upcalls are always direct calls to the outer provider.
80 int error_lib; /* ERR library number, one for each provider */
81 # ifndef OPENSSL_NO_ERR
82 ERR_STRING_DATA *error_strings; /* Copy of what the provider gives us */
86 /* Provider side functions */
87 OSSL_FUNC_provider_teardown_fn *teardown;
88 OSSL_FUNC_provider_gettable_params_fn *gettable_params;
89 OSSL_FUNC_provider_get_params_fn *get_params;
90 OSSL_FUNC_provider_get_capabilities_fn *get_capabilities;
91 OSSL_FUNC_provider_self_test_fn *self_test;
92 OSSL_FUNC_provider_query_operation_fn *query_operation;
93 OSSL_FUNC_provider_unquery_operation_fn *unquery_operation;
96 * Cache of bit to indicate of query_operation() has been called on
97 * a specific operation or not.
99 unsigned char *operation_bits;
100 size_t operation_bits_sz;
101 CRYPTO_RWLOCK *opbits_lock;
103 /* Whether this provider is the child of some other provider */
104 const OSSL_CORE_HANDLE *handle;
105 unsigned int ischild:1;
107 /* Provider side data */
109 const OSSL_DISPATCH *dispatch;
111 DEFINE_STACK_OF(OSSL_PROVIDER)
113 static int ossl_provider_cmp(const OSSL_PROVIDER * const *a,
114 const OSSL_PROVIDER * const *b)
116 return strcmp((*a)->name, (*b)->name);
120 * Provider Object store
121 * =====================
123 * The Provider Object store is a library context object, and therefore needs
127 struct provider_store_st {
128 OSSL_LIB_CTX *libctx;
129 STACK_OF(OSSL_PROVIDER) *providers;
130 STACK_OF(OSSL_PROVIDER_CHILD_CB) *child_cbs;
131 CRYPTO_RWLOCK *default_path_lock;
134 unsigned int use_fallbacks:1;
135 unsigned int freeing:1;
139 * provider_deactivate_free() is a wrapper around ossl_provider_deactivate()
140 * and ossl_provider_free(), called as needed.
141 * Since this is only called when the provider store is being emptied, we
142 * don't need to care about any lock.
144 static void provider_deactivate_free(OSSL_PROVIDER *prov)
146 if (prov->flag_activated)
147 ossl_provider_deactivate(prov);
148 ossl_provider_free(prov);
151 static void ossl_provider_child_cb_free(OSSL_PROVIDER_CHILD_CB *cb)
156 static void provider_store_free(void *vstore)
158 struct provider_store_st *store = vstore;
163 OPENSSL_free(store->default_path);
164 sk_OSSL_PROVIDER_pop_free(store->providers, provider_deactivate_free);
165 sk_OSSL_PROVIDER_CHILD_CB_pop_free(store->child_cbs,
166 ossl_provider_child_cb_free);
167 CRYPTO_THREAD_lock_free(store->default_path_lock);
168 CRYPTO_THREAD_lock_free(store->lock);
172 static void *provider_store_new(OSSL_LIB_CTX *ctx)
174 struct provider_store_st *store = OPENSSL_zalloc(sizeof(*store));
175 const struct predefined_providers_st *p = NULL;
178 || (store->providers = sk_OSSL_PROVIDER_new(ossl_provider_cmp)) == NULL
179 || (store->default_path_lock = CRYPTO_THREAD_lock_new()) == NULL
180 || (store->child_cbs = sk_OSSL_PROVIDER_CHILD_CB_new_null()) == NULL
181 || (store->lock = CRYPTO_THREAD_lock_new()) == NULL) {
182 provider_store_free(store);
186 store->use_fallbacks = 1;
188 for (p = ossl_predefined_providers; p->name != NULL; p++) {
189 OSSL_PROVIDER *prov = NULL;
192 * We use the internal constructor directly here,
193 * otherwise we get a call loop
195 prov = provider_new(p->name, p->init);
198 || sk_OSSL_PROVIDER_push(store->providers, prov) == 0) {
199 ossl_provider_free(prov);
200 provider_store_free(store);
201 ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
207 prov->error_lib = ERR_get_next_error_library();
210 ossl_provider_set_fallback(prov);
216 static const OSSL_LIB_CTX_METHOD provider_store_method = {
217 /* Needs to be freed before the child provider data is freed */
218 OSSL_LIB_CTX_METHOD_PRIORITY_1,
223 static struct provider_store_st *get_provider_store(OSSL_LIB_CTX *libctx)
225 struct provider_store_st *store = NULL;
227 store = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_STORE_INDEX,
228 &provider_store_method);
230 ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
234 int ossl_provider_disable_fallback_loading(OSSL_LIB_CTX *libctx)
236 struct provider_store_st *store;
238 if ((store = get_provider_store(libctx)) != NULL) {
239 if (!CRYPTO_THREAD_write_lock(store->lock))
241 store->use_fallbacks = 0;
242 CRYPTO_THREAD_unlock(store->lock);
248 OSSL_PROVIDER *ossl_provider_find(OSSL_LIB_CTX *libctx, const char *name,
251 struct provider_store_st *store = NULL;
252 OSSL_PROVIDER *prov = NULL;
254 if ((store = get_provider_store(libctx)) != NULL) {
255 OSSL_PROVIDER tmpl = { 0, };
260 * Make sure any providers are loaded from config before we try to find
264 if (ossl_lib_ctx_is_default(libctx))
265 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
266 if (ossl_lib_ctx_is_child(libctx)
267 && !ossl_provider_init_child_providers(libctx))
272 tmpl.name = (char *)name;
273 if (!CRYPTO_THREAD_read_lock(store->lock))
275 if ((i = sk_OSSL_PROVIDER_find(store->providers, &tmpl)) == -1
276 || (prov = sk_OSSL_PROVIDER_value(store->providers, i)) == NULL
277 || !ossl_provider_up_ref(prov))
279 CRYPTO_THREAD_unlock(store->lock);
286 * Provider Object methods
287 * =======================
290 static OSSL_PROVIDER *provider_new(const char *name,
291 OSSL_provider_init_fn *init_function)
293 OSSL_PROVIDER *prov = NULL;
295 if ((prov = OPENSSL_zalloc(sizeof(*prov))) == NULL
297 || (prov->refcnt_lock = CRYPTO_THREAD_lock_new()) == NULL
299 || !ossl_provider_up_ref(prov) /* +1 One reference to be returned */
300 || (prov->opbits_lock = CRYPTO_THREAD_lock_new()) == NULL
301 || (prov->flag_lock = CRYPTO_THREAD_lock_new()) == NULL
302 || (prov->name = OPENSSL_strdup(name)) == NULL) {
303 ossl_provider_free(prov);
304 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
308 prov->init_function = init_function;
312 int ossl_provider_up_ref(OSSL_PROVIDER *prov)
316 if (CRYPTO_UP_REF(&prov->refcnt, &ref, prov->refcnt_lock) <= 0)
321 if (!ossl_provider_up_ref_parent(prov, 0)) {
322 ossl_provider_free(prov);
332 static int provider_up_ref_intern(OSSL_PROVIDER *prov, int activate)
335 return ossl_provider_activate(prov, 0, 1);
337 return ossl_provider_up_ref(prov);
340 static int provider_free_intern(OSSL_PROVIDER *prov, int deactivate)
343 return ossl_provider_deactivate(prov);
345 ossl_provider_free(prov);
350 OSSL_PROVIDER *ossl_provider_new(OSSL_LIB_CTX *libctx, const char *name,
351 OSSL_provider_init_fn *init_function,
354 struct provider_store_st *store = NULL;
355 OSSL_PROVIDER *prov = NULL;
357 if ((store = get_provider_store(libctx)) == NULL)
360 if ((prov = ossl_provider_find(libctx, name,
361 noconfig)) != NULL) { /* refcount +1 */
362 ossl_provider_free(prov); /* refcount -1 */
363 ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_ALREADY_EXISTS,
368 /* provider_new() generates an error, so no need here */
369 if ((prov = provider_new(name, init_function)) == NULL)
372 if (!CRYPTO_THREAD_write_lock(store->lock))
374 if (!ossl_provider_up_ref(prov)) { /* +1 One reference for the store */
375 ossl_provider_free(prov); /* -1 Reference that was to be returned */
377 } else if (sk_OSSL_PROVIDER_push(store->providers, prov) == 0) {
378 ossl_provider_free(prov); /* -1 Store reference */
379 ossl_provider_free(prov); /* -1 Reference that was to be returned */
382 prov->libctx = libctx;
385 prov->error_lib = ERR_get_next_error_library();
388 CRYPTO_THREAD_unlock(store->lock);
391 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
394 * At this point, the provider is only partially "loaded". To be
395 * fully "loaded", ossl_provider_activate() must also be called.
401 static void free_infopair(INFOPAIR *pair)
403 OPENSSL_free(pair->name);
404 OPENSSL_free(pair->value);
408 void ossl_provider_free(OSSL_PROVIDER *prov)
413 CRYPTO_DOWN_REF(&prov->refcnt, &ref, prov->refcnt_lock);
416 * When the refcount drops to zero, we clean up the provider.
417 * Note that this also does teardown, which may seem late,
418 * considering that init happens on first activation. However,
419 * there may be other structures hanging on to the provider after
420 * the last deactivation and may therefore need full access to the
421 * provider's services. Therefore, we deinit late.
424 if (prov->flag_initialized) {
425 ossl_provider_teardown(prov);
426 #ifndef OPENSSL_NO_ERR
428 if (prov->error_strings != NULL) {
429 ERR_unload_strings(prov->error_lib, prov->error_strings);
430 OPENSSL_free(prov->error_strings);
431 prov->error_strings = NULL;
435 OPENSSL_free(prov->operation_bits);
436 prov->operation_bits = NULL;
437 prov->operation_bits_sz = 0;
438 prov->flag_initialized = 0;
443 * We deregister thread handling whether or not the provider was
444 * initialized. If init was attempted but was not successful then
445 * the provider may still have registered a thread handler.
447 ossl_init_thread_deregister(prov);
448 DSO_free(prov->module);
450 OPENSSL_free(prov->name);
451 OPENSSL_free(prov->path);
452 sk_INFOPAIR_pop_free(prov->parameters, free_infopair);
453 CRYPTO_THREAD_lock_free(prov->opbits_lock);
454 CRYPTO_THREAD_lock_free(prov->flag_lock);
456 CRYPTO_THREAD_lock_free(prov->refcnt_lock);
461 else if (prov->ischild) {
462 ossl_provider_free_parent(prov, 0);
469 int ossl_provider_set_module_path(OSSL_PROVIDER *prov, const char *module_path)
471 OPENSSL_free(prov->path);
472 if (module_path == NULL)
474 if ((prov->path = OPENSSL_strdup(module_path)) != NULL)
476 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
480 int ossl_provider_add_parameter(OSSL_PROVIDER *prov,
481 const char *name, const char *value)
483 INFOPAIR *pair = NULL;
485 if ((pair = OPENSSL_zalloc(sizeof(*pair))) != NULL
486 && (prov->parameters != NULL
487 || (prov->parameters = sk_INFOPAIR_new_null()) != NULL)
488 && (pair->name = OPENSSL_strdup(name)) != NULL
489 && (pair->value = OPENSSL_strdup(value)) != NULL
490 && sk_INFOPAIR_push(prov->parameters, pair) > 0)
494 OPENSSL_free(pair->name);
495 OPENSSL_free(pair->value);
498 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
503 * Provider activation.
505 * What "activation" means depends on the provider form; for built in
506 * providers (in the library or the application alike), the provider
507 * can already be considered to be loaded, all that's needed is to
508 * initialize it. However, for dynamically loadable provider modules,
509 * we must first load that module.
511 * Built in modules are distinguished from dynamically loaded modules
512 * with an already assigned init function.
514 static const OSSL_DISPATCH *core_dispatch; /* Define further down */
516 int OSSL_PROVIDER_set_default_search_path(OSSL_LIB_CTX *libctx,
519 struct provider_store_st *store;
523 p = OPENSSL_strdup(path);
525 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
529 if ((store = get_provider_store(libctx)) != NULL
530 && CRYPTO_THREAD_write_lock(store->default_path_lock)) {
531 OPENSSL_free(store->default_path);
532 store->default_path = p;
533 CRYPTO_THREAD_unlock(store->default_path_lock);
541 * Internal version that doesn't affect the store flags, and thereby avoid
542 * locking. Direct callers must remember to set the store flags when
545 static int provider_init(OSSL_PROVIDER *prov, int flag_lock)
547 const OSSL_DISPATCH *provider_dispatch = NULL;
548 void *tmp_provctx = NULL; /* safety measure */
549 #ifndef OPENSSL_NO_ERR
551 OSSL_FUNC_provider_get_reason_strings_fn *p_get_reason_strings = NULL;
557 * The flag lock is used to lock init, not only because the flag is
558 * checked here and set at the end, but also because this function
559 * modifies a number of things in the provider structure that this
560 * function needs to perform under lock anyway.
562 if (flag_lock && !CRYPTO_THREAD_write_lock(prov->flag_lock))
564 if (prov->flag_initialized) {
570 * If the init function isn't set, it indicates that this provider is
573 if (prov->init_function == NULL) {
577 if (prov->module == NULL) {
578 char *allocated_path = NULL;
579 const char *module_path = NULL;
580 char *merged_path = NULL;
581 const char *load_dir = NULL;
582 char *allocated_load_dir = NULL;
583 struct provider_store_st *store;
585 if ((prov->module = DSO_new()) == NULL) {
586 /* DSO_new() generates an error already */
590 if ((store = get_provider_store(prov->libctx)) == NULL
591 || !CRYPTO_THREAD_read_lock(store->default_path_lock))
594 if (store->default_path != NULL) {
595 allocated_load_dir = OPENSSL_strdup(store->default_path);
596 CRYPTO_THREAD_unlock(store->default_path_lock);
597 if (allocated_load_dir == NULL) {
598 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
601 load_dir = allocated_load_dir;
603 CRYPTO_THREAD_unlock(store->default_path_lock);
606 if (load_dir == NULL) {
607 load_dir = ossl_safe_getenv("OPENSSL_MODULES");
608 if (load_dir == NULL)
609 load_dir = MODULESDIR;
612 DSO_ctrl(prov->module, DSO_CTRL_SET_FLAGS,
613 DSO_FLAG_NAME_TRANSLATION_EXT_ONLY, NULL);
615 module_path = prov->path;
616 if (module_path == NULL)
617 module_path = allocated_path =
618 DSO_convert_filename(prov->module, prov->name);
619 if (module_path != NULL)
620 merged_path = DSO_merge(prov->module, module_path, load_dir);
622 if (merged_path == NULL
623 || (DSO_load(prov->module, merged_path, NULL, 0)) == NULL) {
624 DSO_free(prov->module);
628 OPENSSL_free(merged_path);
629 OPENSSL_free(allocated_path);
630 OPENSSL_free(allocated_load_dir);
633 if (prov->module != NULL)
634 prov->init_function = (OSSL_provider_init_fn *)
635 DSO_bind_func(prov->module, "OSSL_provider_init");
639 /* Call the initialise function for the provider. */
640 if (prov->init_function == NULL
641 || !prov->init_function((OSSL_CORE_HANDLE *)prov, core_dispatch,
642 &provider_dispatch, &tmp_provctx)) {
643 ERR_raise_data(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL,
644 "name=%s", prov->name);
647 prov->provctx = tmp_provctx;
648 prov->dispatch = provider_dispatch;
650 for (; provider_dispatch->function_id != 0; provider_dispatch++) {
651 switch (provider_dispatch->function_id) {
652 case OSSL_FUNC_PROVIDER_TEARDOWN:
654 OSSL_FUNC_provider_teardown(provider_dispatch);
656 case OSSL_FUNC_PROVIDER_GETTABLE_PARAMS:
657 prov->gettable_params =
658 OSSL_FUNC_provider_gettable_params(provider_dispatch);
660 case OSSL_FUNC_PROVIDER_GET_PARAMS:
662 OSSL_FUNC_provider_get_params(provider_dispatch);
664 case OSSL_FUNC_PROVIDER_SELF_TEST:
666 OSSL_FUNC_provider_self_test(provider_dispatch);
668 case OSSL_FUNC_PROVIDER_GET_CAPABILITIES:
669 prov->get_capabilities =
670 OSSL_FUNC_provider_get_capabilities(provider_dispatch);
672 case OSSL_FUNC_PROVIDER_QUERY_OPERATION:
673 prov->query_operation =
674 OSSL_FUNC_provider_query_operation(provider_dispatch);
676 case OSSL_FUNC_PROVIDER_UNQUERY_OPERATION:
677 prov->unquery_operation =
678 OSSL_FUNC_provider_unquery_operation(provider_dispatch);
680 #ifndef OPENSSL_NO_ERR
682 case OSSL_FUNC_PROVIDER_GET_REASON_STRINGS:
683 p_get_reason_strings =
684 OSSL_FUNC_provider_get_reason_strings(provider_dispatch);
691 #ifndef OPENSSL_NO_ERR
693 if (p_get_reason_strings != NULL) {
694 const OSSL_ITEM *reasonstrings = p_get_reason_strings(prov->provctx);
698 * ERR_load_strings() handles ERR_STRING_DATA rather than OSSL_ITEM,
699 * although they are essentially the same type.
700 * Furthermore, ERR_load_strings() patches the array's error number
701 * with the error library number, so we need to make a copy of that
705 while (reasonstrings[cnt].id != 0) {
706 if (ERR_GET_LIB(reasonstrings[cnt].id) != 0)
710 cnt++; /* One for the terminating item */
712 /* Allocate one extra item for the "library" name */
713 prov->error_strings =
714 OPENSSL_zalloc(sizeof(ERR_STRING_DATA) * (cnt + 1));
715 if (prov->error_strings == NULL)
719 * Set the "library" name.
721 prov->error_strings[0].error = ERR_PACK(prov->error_lib, 0, 0);
722 prov->error_strings[0].string = prov->name;
724 * Copy reasonstrings item 0..cnt-1 to prov->error_trings positions
727 for (cnt2 = 1; cnt2 <= cnt; cnt2++) {
728 prov->error_strings[cnt2].error = (int)reasonstrings[cnt2-1].id;
729 prov->error_strings[cnt2].string = reasonstrings[cnt2-1].ptr;
732 ERR_load_strings(prov->error_lib, prov->error_strings);
737 /* With this flag set, this provider has become fully "loaded". */
738 prov->flag_initialized = 1;
743 CRYPTO_THREAD_unlock(prov->flag_lock);
748 * Deactivate a provider.
749 * Return -1 on failure and the activation count on success
751 static int provider_deactivate(OSSL_PROVIDER *prov)
754 struct provider_store_st *store;
756 if (!ossl_assert(prov != NULL))
759 store = get_provider_store(prov->libctx);
763 if (!CRYPTO_THREAD_read_lock(store->lock))
765 if (!CRYPTO_THREAD_write_lock(prov->flag_lock))
769 if (prov->activatecnt == 2 && prov->ischild) {
771 * We have had a direct activation in this child libctx so we need to
772 * now down the ref count in the parent provider.
774 ossl_provider_free_parent(prov, 1);
778 if ((count = --prov->activatecnt) < 1) {
779 int i, max = sk_OSSL_PROVIDER_CHILD_CB_num(store->child_cbs);
780 OSSL_PROVIDER_CHILD_CB *child_cb;
782 prov->flag_activated = 0;
783 for (i = 0; i < max; i++) {
784 child_cb = sk_OSSL_PROVIDER_CHILD_CB_value(store->child_cbs, i);
785 child_cb->remove_cb((OSSL_CORE_HANDLE *)prov, child_cb->cbdata);
789 CRYPTO_THREAD_unlock(prov->flag_lock);
790 CRYPTO_THREAD_unlock(store->lock);
792 /* We don't deinit here, that's done in ossl_provider_free() */
797 * Activate a provider.
798 * Return -1 on failure and the activation count on success
800 static int provider_activate(OSSL_PROVIDER *prov, int lock, int upcalls)
804 if (provider_init(prov, lock)) {
807 OSSL_PROVIDER_CHILD_CB *child_cb;
808 struct provider_store_st *store;
810 store = get_provider_store(prov->libctx);
814 if (lock && !CRYPTO_THREAD_read_lock(store->lock))
817 max = sk_OSSL_PROVIDER_CHILD_CB_num(store->child_cbs);
818 if (lock && !CRYPTO_THREAD_write_lock(prov->flag_lock))
822 if (prov->ischild && upcalls)
823 ret = ossl_provider_up_ref_parent(prov, 1);
827 count = ++prov->activatecnt;
828 prov->flag_activated = 1;
830 if (prov->activatecnt == 1) {
831 for (i = 0; i < max; i++) {
833 * This is newly activated (activatecnt == 1), so we need to
834 * create child providers as necessary.
836 child_cb = sk_OSSL_PROVIDER_CHILD_CB_value(store->child_cbs,
838 ret &= child_cb->create_cb((OSSL_CORE_HANDLE *)prov,
845 CRYPTO_THREAD_unlock(prov->flag_lock);
846 CRYPTO_THREAD_unlock(store->lock);
855 static int provider_flush_store_cache(const OSSL_PROVIDER *prov)
857 struct provider_store_st *store;
860 if ((store = get_provider_store(prov->libctx)) == NULL)
863 if (!CRYPTO_THREAD_read_lock(store->lock))
865 freeing = store->freeing;
866 CRYPTO_THREAD_unlock(store->lock);
869 return evp_method_store_flush(prov->libctx);
873 int ossl_provider_activate(OSSL_PROVIDER *prov, int retain_fallbacks,
880 if ((count = provider_activate(prov, 1, upcalls)) > 0) {
881 if (!retain_fallbacks) {
882 if (!CRYPTO_THREAD_write_lock(prov->store->lock)) {
883 provider_deactivate(prov);
886 prov->store->use_fallbacks = 0;
887 CRYPTO_THREAD_unlock(prov->store->lock);
889 return count == 1 ? provider_flush_store_cache(prov) : 1;
894 int ossl_provider_deactivate(OSSL_PROVIDER *prov)
898 if (prov == NULL || (count = provider_deactivate(prov)) < 0)
900 return count == 0 ? provider_flush_store_cache(prov) : 1;
903 void *ossl_provider_ctx(const OSSL_PROVIDER *prov)
905 return prov->provctx;
909 * This function only does something once when store->use_fallbacks == 1,
910 * and then sets store->use_fallbacks = 0, so the second call and so on is
911 * effectively a no-op.
913 static void provider_activate_fallbacks(struct provider_store_st *store)
917 int activated_fallback_count = 0;
920 if (!CRYPTO_THREAD_read_lock(store->lock))
922 use_fallbacks = store->use_fallbacks;
923 CRYPTO_THREAD_unlock(store->lock);
927 if (!CRYPTO_THREAD_write_lock(store->lock))
929 /* Check again, just in case another thread changed it */
930 use_fallbacks = store->use_fallbacks;
931 if (!use_fallbacks) {
932 CRYPTO_THREAD_unlock(store->lock);
936 num_provs = sk_OSSL_PROVIDER_num(store->providers);
937 for (i = 0; i < num_provs; i++) {
938 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(store->providers, i);
940 if (ossl_provider_up_ref(prov)) {
941 if (CRYPTO_THREAD_write_lock(prov->flag_lock)) {
942 if (prov->flag_fallback) {
943 if (provider_activate(prov, 0, 0) > 0)
944 activated_fallback_count++;
946 CRYPTO_THREAD_unlock(prov->flag_lock);
948 ossl_provider_free(prov);
953 * We assume that all fallbacks have been added to the store before
954 * any fallback is activated.
955 * TODO: We may have to reconsider this, IF we find ourselves adding
956 * fallbacks after any previous fallback has been activated.
958 if (activated_fallback_count > 0)
959 store->use_fallbacks = 0;
961 CRYPTO_THREAD_unlock(store->lock);
964 int ossl_provider_doall_activated(OSSL_LIB_CTX *ctx,
965 int (*cb)(OSSL_PROVIDER *provider,
969 int ret = 0, curr, max;
970 struct provider_store_st *store = get_provider_store(ctx);
971 STACK_OF(OSSL_PROVIDER) *provs = NULL;
975 * Make sure any providers are loaded from config before we try to use
978 if (ossl_lib_ctx_is_default(ctx))
979 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
980 if (ossl_lib_ctx_is_child(ctx)
981 && !ossl_provider_init_child_providers(ctx))
987 provider_activate_fallbacks(store);
990 * Under lock, grab a copy of the provider list and up_ref each
991 * provider so that they don't disappear underneath us.
993 if (!CRYPTO_THREAD_read_lock(store->lock))
995 provs = sk_OSSL_PROVIDER_dup(store->providers);
997 CRYPTO_THREAD_unlock(store->lock);
1000 max = sk_OSSL_PROVIDER_num(provs);
1002 * We work backwards through the stack so that we can safely delete items
1005 for (curr = max - 1; curr >= 0; curr--) {
1006 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(provs, curr);
1008 if (!CRYPTO_THREAD_write_lock(prov->flag_lock))
1010 if (prov->flag_activated) {
1011 if (!ossl_provider_up_ref(prov)){
1012 CRYPTO_THREAD_unlock(prov->flag_lock);
1016 * It's already activated, but we up the activated count to ensure
1017 * it remains activated until after we've called the user callback.
1019 if (provider_activate(prov, 0, 1) < 0) {
1020 ossl_provider_free(prov);
1021 CRYPTO_THREAD_unlock(prov->flag_lock);
1025 sk_OSSL_PROVIDER_delete(provs, curr);
1028 CRYPTO_THREAD_unlock(prov->flag_lock);
1030 CRYPTO_THREAD_unlock(store->lock);
1033 * Now, we sweep through all providers not under lock
1035 for (curr = 0; curr < max; curr++) {
1036 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(provs, curr);
1038 if (!cb(prov, cbdata))
1047 CRYPTO_THREAD_unlock(store->lock);
1050 * The pop_free call doesn't do what we want on an error condition. We
1051 * either start from the first item in the stack, or part way through if
1052 * we only processed some of the items.
1054 for (curr++; curr < max; curr++) {
1055 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(provs, curr);
1057 provider_deactivate(prov);
1058 ossl_provider_free(prov);
1060 sk_OSSL_PROVIDER_free(provs);
1064 int ossl_provider_available(OSSL_PROVIDER *prov)
1069 provider_activate_fallbacks(prov->store);
1071 if (!CRYPTO_THREAD_read_lock(prov->flag_lock))
1073 ret = prov->flag_activated;
1074 CRYPTO_THREAD_unlock(prov->flag_lock);
1080 /* Setters of Provider Object data */
1081 int ossl_provider_set_fallback(OSSL_PROVIDER *prov)
1086 prov->flag_fallback = 1;
1090 /* Getters of Provider Object data */
1091 const char *ossl_provider_name(const OSSL_PROVIDER *prov)
1096 const DSO *ossl_provider_dso(const OSSL_PROVIDER *prov)
1098 return prov->module;
1101 const char *ossl_provider_module_name(const OSSL_PROVIDER *prov)
1106 return DSO_get_filename(prov->module);
1110 const char *ossl_provider_module_path(const OSSL_PROVIDER *prov)
1115 /* FIXME: Ensure it's a full path */
1116 return DSO_get_filename(prov->module);
1120 void *ossl_provider_prov_ctx(const OSSL_PROVIDER *prov)
1123 return prov->provctx;
1128 const OSSL_DISPATCH *ossl_provider_get0_dispatch(const OSSL_PROVIDER *prov)
1131 return prov->dispatch;
1136 OSSL_LIB_CTX *ossl_provider_libctx(const OSSL_PROVIDER *prov)
1138 return prov != NULL ? prov->libctx : NULL;
1141 /* Wrappers around calls to the provider */
1142 void ossl_provider_teardown(const OSSL_PROVIDER *prov)
1144 if (prov->teardown != NULL && !prov->ischild)
1145 prov->teardown(prov->provctx);
1148 const OSSL_PARAM *ossl_provider_gettable_params(const OSSL_PROVIDER *prov)
1150 return prov->gettable_params == NULL
1151 ? NULL : prov->gettable_params(prov->provctx);
1154 int ossl_provider_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
1156 return prov->get_params == NULL
1157 ? 0 : prov->get_params(prov->provctx, params);
1160 int ossl_provider_self_test(const OSSL_PROVIDER *prov)
1164 if (prov->self_test == NULL)
1166 ret = prov->self_test(prov->provctx);
1168 (void)provider_flush_store_cache(prov);
1172 int ossl_provider_get_capabilities(const OSSL_PROVIDER *prov,
1173 const char *capability,
1177 return prov->get_capabilities == NULL
1178 ? 1 : prov->get_capabilities(prov->provctx, capability, cb, arg);
1181 const OSSL_ALGORITHM *ossl_provider_query_operation(const OSSL_PROVIDER *prov,
1185 const OSSL_ALGORITHM *res;
1187 if (prov->query_operation == NULL)
1189 res = prov->query_operation(prov->provctx, operation_id, no_cache);
1190 #if defined(OPENSSL_NO_CACHED_FETCH)
1191 /* Forcing the non-caching of queries */
1192 if (no_cache != NULL)
1198 void ossl_provider_unquery_operation(const OSSL_PROVIDER *prov,
1200 const OSSL_ALGORITHM *algs)
1202 if (prov->unquery_operation != NULL)
1203 prov->unquery_operation(prov->provctx, operation_id, algs);
1206 int ossl_provider_clear_all_operation_bits(OSSL_LIB_CTX *libctx)
1208 struct provider_store_st *store;
1209 OSSL_PROVIDER *provider;
1210 int i, num, res = 1;
1212 if ((store = get_provider_store(libctx)) != NULL) {
1213 if (!CRYPTO_THREAD_read_lock(store->lock))
1215 num = sk_OSSL_PROVIDER_num(store->providers);
1216 for (i = 0; i < num; i++) {
1217 provider = sk_OSSL_PROVIDER_value(store->providers, i);
1218 if (!CRYPTO_THREAD_write_lock(provider->opbits_lock)) {
1222 if (provider->operation_bits != NULL)
1223 memset(provider->operation_bits, 0,
1224 provider->operation_bits_sz);
1225 CRYPTO_THREAD_unlock(provider->opbits_lock);
1227 CRYPTO_THREAD_unlock(store->lock);
1233 int ossl_provider_set_operation_bit(OSSL_PROVIDER *provider, size_t bitnum)
1235 size_t byte = bitnum / 8;
1236 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
1238 if (!CRYPTO_THREAD_write_lock(provider->opbits_lock))
1240 if (provider->operation_bits_sz <= byte) {
1241 unsigned char *tmp = OPENSSL_realloc(provider->operation_bits,
1245 CRYPTO_THREAD_unlock(provider->opbits_lock);
1246 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
1249 provider->operation_bits = tmp;
1250 memset(provider->operation_bits + provider->operation_bits_sz,
1251 '\0', byte + 1 - provider->operation_bits_sz);
1252 provider->operation_bits_sz = byte + 1;
1254 provider->operation_bits[byte] |= bit;
1255 CRYPTO_THREAD_unlock(provider->opbits_lock);
1259 int ossl_provider_test_operation_bit(OSSL_PROVIDER *provider, size_t bitnum,
1262 size_t byte = bitnum / 8;
1263 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
1265 if (!ossl_assert(result != NULL)) {
1266 ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
1271 if (!CRYPTO_THREAD_read_lock(provider->opbits_lock))
1273 if (provider->operation_bits_sz > byte)
1274 *result = ((provider->operation_bits[byte] & bit) != 0);
1275 CRYPTO_THREAD_unlock(provider->opbits_lock);
1279 const OSSL_CORE_HANDLE *ossl_provider_get_parent(OSSL_PROVIDER *prov)
1281 return prov->handle;
1284 int ossl_provider_set_child(OSSL_PROVIDER *prov, const OSSL_CORE_HANDLE *handle)
1286 struct provider_store_st *store = NULL;
1288 if ((store = get_provider_store(prov->libctx)) == NULL)
1291 prov->handle = handle;
1294 if (!CRYPTO_THREAD_write_lock(store->lock))
1297 CRYPTO_THREAD_unlock(store->lock);
1302 static int ossl_provider_register_child_cb(const OSSL_CORE_HANDLE *handle,
1304 const OSSL_CORE_HANDLE *provider,
1307 const OSSL_CORE_HANDLE *provider,
1312 * This is really an OSSL_PROVIDER that we created and cast to
1313 * OSSL_CORE_HANDLE originally. Therefore it is safe to cast it back.
1315 OSSL_PROVIDER *thisprov = (OSSL_PROVIDER *)handle;
1316 OSSL_PROVIDER *prov;
1317 OSSL_LIB_CTX *libctx = thisprov->libctx;
1318 struct provider_store_st *store = NULL;
1319 int ret = 0, i, max;
1320 OSSL_PROVIDER_CHILD_CB *child_cb;
1322 if ((store = get_provider_store(libctx)) == NULL)
1325 child_cb = OPENSSL_malloc(sizeof(*child_cb));
1326 if (child_cb == NULL)
1328 child_cb->prov = thisprov;
1329 child_cb->create_cb = create_cb;
1330 child_cb->remove_cb = remove_cb;
1331 child_cb->cbdata = cbdata;
1333 if (!CRYPTO_THREAD_write_lock(store->lock)) {
1334 OPENSSL_free(child_cb);
1337 max = sk_OSSL_PROVIDER_num(store->providers);
1338 for (i = 0; i < max; i++) {
1339 prov = sk_OSSL_PROVIDER_value(store->providers, i);
1340 if (!CRYPTO_THREAD_read_lock(prov->flag_lock))
1343 * We hold the lock while calling the user callback. This means that the
1344 * user callback must be short and simple and not do anything likely to
1347 if (prov->flag_activated
1348 && !create_cb((OSSL_CORE_HANDLE *)prov, cbdata))
1350 CRYPTO_THREAD_unlock(prov->flag_lock);
1354 ret = sk_OSSL_PROVIDER_CHILD_CB_push(store->child_cbs, child_cb);
1356 if (i != max || ret <= 0) {
1357 /* Failed during creation. Remove everything we just added */
1358 for (; i >= 0; i--) {
1359 prov = sk_OSSL_PROVIDER_value(store->providers, i);
1360 remove_cb((OSSL_CORE_HANDLE *)prov, cbdata);
1362 OPENSSL_free(child_cb);
1365 CRYPTO_THREAD_unlock(store->lock);
1370 static void ossl_provider_deregister_child_cb(const OSSL_CORE_HANDLE *handle)
1373 * This is really an OSSL_PROVIDER that we created and cast to
1374 * OSSL_CORE_HANDLE originally. Therefore it is safe to cast it back.
1376 OSSL_PROVIDER *thisprov = (OSSL_PROVIDER *)handle;
1377 OSSL_LIB_CTX *libctx = thisprov->libctx;
1378 struct provider_store_st *store = NULL;
1380 OSSL_PROVIDER_CHILD_CB *child_cb;
1382 if ((store = get_provider_store(libctx)) == NULL)
1385 if (!CRYPTO_THREAD_write_lock(store->lock))
1387 max = sk_OSSL_PROVIDER_CHILD_CB_num(store->child_cbs);
1388 for (i = 0; i < max; i++) {
1389 child_cb = sk_OSSL_PROVIDER_CHILD_CB_value(store->child_cbs, i);
1390 if (child_cb->prov == thisprov) {
1391 /* Found an entry */
1392 sk_OSSL_PROVIDER_CHILD_CB_delete(store->child_cbs, i);
1393 OPENSSL_free(child_cb);
1397 CRYPTO_THREAD_unlock(store->lock);
1402 * Core functions for the provider
1403 * ===============================
1405 * This is the set of functions that the core makes available to the provider
1409 * This returns a list of Provider Object parameters with their types, for
1410 * discovery. We do not expect that many providers will use this, but one
1413 static const OSSL_PARAM param_types[] = {
1414 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
1415 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_PROV_NAME, OSSL_PARAM_UTF8_PTR,
1418 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_MODULE_FILENAME, OSSL_PARAM_UTF8_PTR,
1425 * Forward declare all the functions that are provided aa dispatch.
1426 * This ensures that the compiler will complain if they aren't defined
1427 * with the correct signature.
1429 static OSSL_FUNC_core_gettable_params_fn core_gettable_params;
1430 static OSSL_FUNC_core_get_params_fn core_get_params;
1431 static OSSL_FUNC_core_thread_start_fn core_thread_start;
1432 static OSSL_FUNC_core_get_libctx_fn core_get_libctx;
1434 static OSSL_FUNC_core_new_error_fn core_new_error;
1435 static OSSL_FUNC_core_set_error_debug_fn core_set_error_debug;
1436 static OSSL_FUNC_core_vset_error_fn core_vset_error;
1437 static OSSL_FUNC_core_set_error_mark_fn core_set_error_mark;
1438 static OSSL_FUNC_core_clear_last_error_mark_fn core_clear_last_error_mark;
1439 static OSSL_FUNC_core_pop_error_to_mark_fn core_pop_error_to_mark;
1442 static const OSSL_PARAM *core_gettable_params(const OSSL_CORE_HANDLE *handle)
1447 static int core_get_params(const OSSL_CORE_HANDLE *handle, OSSL_PARAM params[])
1452 * We created this object originally and we know it is actually an
1453 * OSSL_PROVIDER *, so the cast is safe
1455 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1457 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_VERSION)) != NULL)
1458 OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR);
1459 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_PROV_NAME)) != NULL)
1460 OSSL_PARAM_set_utf8_ptr(p, prov->name);
1463 if ((p = OSSL_PARAM_locate(params,
1464 OSSL_PROV_PARAM_CORE_MODULE_FILENAME)) != NULL)
1465 OSSL_PARAM_set_utf8_ptr(p, ossl_provider_module_path(prov));
1468 if (prov->parameters == NULL)
1471 for (i = 0; i < sk_INFOPAIR_num(prov->parameters); i++) {
1472 INFOPAIR *pair = sk_INFOPAIR_value(prov->parameters, i);
1474 if ((p = OSSL_PARAM_locate(params, pair->name)) != NULL)
1475 OSSL_PARAM_set_utf8_ptr(p, pair->value);
1480 static OPENSSL_CORE_CTX *core_get_libctx(const OSSL_CORE_HANDLE *handle)
1483 * We created this object originally and we know it is actually an
1484 * OSSL_PROVIDER *, so the cast is safe
1486 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1489 * Using ossl_provider_libctx would be wrong as that returns
1490 * NULL for |prov| == NULL and NULL libctx has a special meaning
1491 * that does not apply here. Here |prov| == NULL can happen only in
1492 * case of a coding error.
1494 assert(prov != NULL);
1495 return (OPENSSL_CORE_CTX *)prov->libctx;
1498 static int core_thread_start(const OSSL_CORE_HANDLE *handle,
1499 OSSL_thread_stop_handler_fn handfn)
1502 * We created this object originally and we know it is actually an
1503 * OSSL_PROVIDER *, so the cast is safe
1505 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1507 return ossl_init_thread_start(prov, prov->provctx, handfn);
1511 * The FIPS module inner provider doesn't implement these. They aren't
1512 * needed there, since the FIPS module upcalls are always the outer provider
1517 * These error functions should use |handle| to select the proper
1518 * library context to report in the correct error stack if error
1519 * stacks become tied to the library context.
1520 * We cannot currently do that since there's no support for it in the
1523 static void core_new_error(const OSSL_CORE_HANDLE *handle)
1528 static void core_set_error_debug(const OSSL_CORE_HANDLE *handle,
1529 const char *file, int line, const char *func)
1531 ERR_set_debug(file, line, func);
1534 static void core_vset_error(const OSSL_CORE_HANDLE *handle,
1535 uint32_t reason, const char *fmt, va_list args)
1538 * We created this object originally and we know it is actually an
1539 * OSSL_PROVIDER *, so the cast is safe
1541 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1544 * If the uppermost 8 bits are non-zero, it's an OpenSSL library
1545 * error and will be treated as such. Otherwise, it's a new style
1546 * provider error and will be treated as such.
1548 if (ERR_GET_LIB(reason) != 0) {
1549 ERR_vset_error(ERR_GET_LIB(reason), ERR_GET_REASON(reason), fmt, args);
1551 ERR_vset_error(prov->error_lib, (int)reason, fmt, args);
1555 static int core_set_error_mark(const OSSL_CORE_HANDLE *handle)
1557 return ERR_set_mark();
1560 static int core_clear_last_error_mark(const OSSL_CORE_HANDLE *handle)
1562 return ERR_clear_last_mark();
1565 static int core_pop_error_to_mark(const OSSL_CORE_HANDLE *handle)
1567 return ERR_pop_to_mark();
1569 #endif /* FIPS_MODULE */
1572 * Functions provided by the core.
1574 static const OSSL_DISPATCH core_dispatch_[] = {
1575 { OSSL_FUNC_CORE_GETTABLE_PARAMS, (void (*)(void))core_gettable_params },
1576 { OSSL_FUNC_CORE_GET_PARAMS, (void (*)(void))core_get_params },
1577 { OSSL_FUNC_CORE_GET_LIBCTX, (void (*)(void))core_get_libctx },
1578 { OSSL_FUNC_CORE_THREAD_START, (void (*)(void))core_thread_start },
1580 { OSSL_FUNC_CORE_NEW_ERROR, (void (*)(void))core_new_error },
1581 { OSSL_FUNC_CORE_SET_ERROR_DEBUG, (void (*)(void))core_set_error_debug },
1582 { OSSL_FUNC_CORE_VSET_ERROR, (void (*)(void))core_vset_error },
1583 { OSSL_FUNC_CORE_SET_ERROR_MARK, (void (*)(void))core_set_error_mark },
1584 { OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK,
1585 (void (*)(void))core_clear_last_error_mark },
1586 { OSSL_FUNC_CORE_POP_ERROR_TO_MARK, (void (*)(void))core_pop_error_to_mark },
1587 { OSSL_FUNC_BIO_NEW_FILE, (void (*)(void))ossl_core_bio_new_file },
1588 { OSSL_FUNC_BIO_NEW_MEMBUF, (void (*)(void))ossl_core_bio_new_mem_buf },
1589 { OSSL_FUNC_BIO_READ_EX, (void (*)(void))ossl_core_bio_read_ex },
1590 { OSSL_FUNC_BIO_WRITE_EX, (void (*)(void))ossl_core_bio_write_ex },
1591 { OSSL_FUNC_BIO_GETS, (void (*)(void))ossl_core_bio_gets },
1592 { OSSL_FUNC_BIO_PUTS, (void (*)(void))ossl_core_bio_puts },
1593 { OSSL_FUNC_BIO_CTRL, (void (*)(void))ossl_core_bio_ctrl },
1594 { OSSL_FUNC_BIO_UP_REF, (void (*)(void))ossl_core_bio_up_ref },
1595 { OSSL_FUNC_BIO_FREE, (void (*)(void))ossl_core_bio_free },
1596 { OSSL_FUNC_BIO_VPRINTF, (void (*)(void))ossl_core_bio_vprintf },
1597 { OSSL_FUNC_BIO_VSNPRINTF, (void (*)(void))BIO_vsnprintf },
1598 { OSSL_FUNC_SELF_TEST_CB, (void (*)(void))OSSL_SELF_TEST_get_callback },
1599 { OSSL_FUNC_GET_ENTROPY, (void (*)(void))ossl_rand_get_entropy },
1600 { OSSL_FUNC_CLEANUP_ENTROPY, (void (*)(void))ossl_rand_cleanup_entropy },
1601 { OSSL_FUNC_GET_NONCE, (void (*)(void))ossl_rand_get_nonce },
1602 { OSSL_FUNC_CLEANUP_NONCE, (void (*)(void))ossl_rand_cleanup_nonce },
1604 { OSSL_FUNC_CRYPTO_MALLOC, (void (*)(void))CRYPTO_malloc },
1605 { OSSL_FUNC_CRYPTO_ZALLOC, (void (*)(void))CRYPTO_zalloc },
1606 { OSSL_FUNC_CRYPTO_FREE, (void (*)(void))CRYPTO_free },
1607 { OSSL_FUNC_CRYPTO_CLEAR_FREE, (void (*)(void))CRYPTO_clear_free },
1608 { OSSL_FUNC_CRYPTO_REALLOC, (void (*)(void))CRYPTO_realloc },
1609 { OSSL_FUNC_CRYPTO_CLEAR_REALLOC, (void (*)(void))CRYPTO_clear_realloc },
1610 { OSSL_FUNC_CRYPTO_SECURE_MALLOC, (void (*)(void))CRYPTO_secure_malloc },
1611 { OSSL_FUNC_CRYPTO_SECURE_ZALLOC, (void (*)(void))CRYPTO_secure_zalloc },
1612 { OSSL_FUNC_CRYPTO_SECURE_FREE, (void (*)(void))CRYPTO_secure_free },
1613 { OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE,
1614 (void (*)(void))CRYPTO_secure_clear_free },
1615 { OSSL_FUNC_CRYPTO_SECURE_ALLOCATED,
1616 (void (*)(void))CRYPTO_secure_allocated },
1617 { OSSL_FUNC_OPENSSL_CLEANSE, (void (*)(void))OPENSSL_cleanse },
1619 { OSSL_FUNC_PROVIDER_REGISTER_CHILD_CB,
1620 (void (*)(void))ossl_provider_register_child_cb },
1621 { OSSL_FUNC_PROVIDER_DEREGISTER_CHILD_CB,
1622 (void (*)(void))ossl_provider_deregister_child_cb },
1623 { OSSL_FUNC_PROVIDER_NAME,
1624 (void (*)(void))OSSL_PROVIDER_name },
1625 { OSSL_FUNC_PROVIDER_GET0_PROVIDER_CTX,
1626 (void (*)(void))OSSL_PROVIDER_get0_provider_ctx },
1627 { OSSL_FUNC_PROVIDER_GET0_DISPATCH,
1628 (void (*)(void))OSSL_PROVIDER_get0_dispatch },
1629 { OSSL_FUNC_PROVIDER_UP_REF,
1630 (void (*)(void))provider_up_ref_intern },
1631 { OSSL_FUNC_PROVIDER_FREE,
1632 (void (*)(void))provider_free_intern },
1636 static const OSSL_DISPATCH *core_dispatch = core_dispatch_;