2 * Copyright 2019-2020 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
10 #include <openssl/core.h>
11 #include <openssl/core_dispatch.h>
12 #include <openssl/core_names.h>
13 #include <openssl/provider.h>
14 #include <openssl/params.h>
15 #include <openssl/opensslv.h>
16 #include "crypto/cryptlib.h"
17 #include "crypto/evp.h" /* evp_method_store_flush */
18 #include "internal/nelem.h"
19 #include "internal/thread_once.h"
20 #include "internal/provider.h"
21 #include "internal/refcount.h"
22 #include "provider_local.h"
24 # include <openssl/self_test.h>
27 static OSSL_PROVIDER *provider_new(const char *name,
28 OSSL_provider_init_fn *init_function);
31 * Provider Object structure
32 * =========================
39 DEFINE_STACK_OF(INFOPAIR)
41 struct provider_store_st; /* Forward declaration */
43 struct ossl_provider_st {
45 unsigned int flag_initialized:1;
46 unsigned int flag_fallback:1; /* Can be used as fallback */
47 unsigned int flag_activated_as_fallback:1;
49 /* OpenSSL library side data */
50 CRYPTO_REF_COUNT refcnt;
51 CRYPTO_RWLOCK *refcnt_lock; /* For the ref counter */
55 OSSL_provider_init_fn *init_function;
56 STACK_OF(INFOPAIR) *parameters;
57 OPENSSL_CTX *libctx; /* The library context this instance is in */
58 struct provider_store_st *store; /* The store this instance belongs to */
61 * In the FIPS module inner provider, this isn't needed, since the
62 * error upcalls are always direct calls to the outer provider.
64 int error_lib; /* ERR library number, one for each provider */
65 # ifndef OPENSSL_NO_ERR
66 ERR_STRING_DATA *error_strings; /* Copy of what the provider gives us */
70 /* Provider side functions */
71 OSSL_FUNC_provider_teardown_fn *teardown;
72 OSSL_FUNC_provider_gettable_params_fn *gettable_params;
73 OSSL_FUNC_provider_get_params_fn *get_params;
74 OSSL_FUNC_provider_get_capabilities_fn *get_capabilities;
75 OSSL_FUNC_provider_self_test_fn *self_test;
76 OSSL_FUNC_provider_query_operation_fn *query_operation;
79 * Cache of bit to indicate of query_operation() has been called on
80 * a specific operation or not.
82 unsigned char *operation_bits;
83 size_t operation_bits_sz;
85 /* Provider side data */
88 DEFINE_STACK_OF(OSSL_PROVIDER)
90 static int ossl_provider_cmp(const OSSL_PROVIDER * const *a,
91 const OSSL_PROVIDER * const *b)
93 return strcmp((*a)->name, (*b)->name);
97 * Provider Object store
98 * =====================
100 * The Provider Object store is a library context object, and therefore needs
104 struct provider_store_st {
105 STACK_OF(OSSL_PROVIDER) *providers;
108 unsigned int use_fallbacks:1;
112 * provider_deactivate_free() is a wrapper around ossl_provider_free()
113 * that also makes sure that activated fallback providers are deactivated.
114 * This is simply done by freeing them an extra time, to compensate for the
115 * refcount that provider_activate_fallbacks() gives them.
116 * Since this is only called when the provider store is being emptied, we
117 * don't need to care about any lock.
119 static void provider_deactivate_free(OSSL_PROVIDER *prov)
121 int extra_free = (prov->flag_initialized
122 && prov->flag_activated_as_fallback);
125 ossl_provider_free(prov);
126 ossl_provider_free(prov);
129 static void provider_store_free(void *vstore)
131 struct provider_store_st *store = vstore;
135 OPENSSL_free(store->default_path);
136 sk_OSSL_PROVIDER_pop_free(store->providers, provider_deactivate_free);
137 CRYPTO_THREAD_lock_free(store->lock);
141 static void *provider_store_new(OPENSSL_CTX *ctx)
143 struct provider_store_st *store = OPENSSL_zalloc(sizeof(*store));
144 const struct predefined_providers_st *p = NULL;
147 || (store->providers = sk_OSSL_PROVIDER_new(ossl_provider_cmp)) == NULL
148 || (store->lock = CRYPTO_THREAD_lock_new()) == NULL) {
149 provider_store_free(store);
152 store->use_fallbacks = 1;
154 for (p = predefined_providers; p->name != NULL; p++) {
155 OSSL_PROVIDER *prov = NULL;
158 * We use the internal constructor directly here,
159 * otherwise we get a call loop
161 prov = provider_new(p->name, p->init);
164 || sk_OSSL_PROVIDER_push(store->providers, prov) == 0) {
165 ossl_provider_free(prov);
166 provider_store_free(store);
167 CRYPTOerr(CRYPTO_F_PROVIDER_STORE_NEW, ERR_R_INTERNAL_ERROR);
173 prov->error_lib = ERR_get_next_error_library();
176 ossl_provider_set_fallback(prov);
182 static const OPENSSL_CTX_METHOD provider_store_method = {
187 static struct provider_store_st *get_provider_store(OPENSSL_CTX *libctx)
189 struct provider_store_st *store = NULL;
191 store = openssl_ctx_get_data(libctx, OPENSSL_CTX_PROVIDER_STORE_INDEX,
192 &provider_store_method);
194 CRYPTOerr(CRYPTO_F_GET_PROVIDER_STORE, ERR_R_INTERNAL_ERROR);
198 OSSL_PROVIDER *ossl_provider_find(OPENSSL_CTX *libctx, const char *name,
201 struct provider_store_st *store = NULL;
202 OSSL_PROVIDER *prov = NULL;
204 if ((store = get_provider_store(libctx)) != NULL) {
205 OSSL_PROVIDER tmpl = { 0, };
210 * Make sure any providers are loaded from config before we try to find
214 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
217 tmpl.name = (char *)name;
218 CRYPTO_THREAD_write_lock(store->lock);
219 if ((i = sk_OSSL_PROVIDER_find(store->providers, &tmpl)) == -1
220 || (prov = sk_OSSL_PROVIDER_value(store->providers, i)) == NULL
221 || !ossl_provider_up_ref(prov))
223 CRYPTO_THREAD_unlock(store->lock);
230 * Provider Object methods
231 * =======================
234 static OSSL_PROVIDER *provider_new(const char *name,
235 OSSL_provider_init_fn *init_function)
237 OSSL_PROVIDER *prov = NULL;
239 if ((prov = OPENSSL_zalloc(sizeof(*prov))) == NULL
241 || (prov->refcnt_lock = CRYPTO_THREAD_lock_new()) == NULL
243 || !ossl_provider_up_ref(prov) /* +1 One reference to be returned */
244 || (prov->name = OPENSSL_strdup(name)) == NULL) {
245 ossl_provider_free(prov);
246 CRYPTOerr(CRYPTO_F_PROVIDER_NEW, ERR_R_MALLOC_FAILURE);
250 prov->init_function = init_function;
254 int ossl_provider_up_ref(OSSL_PROVIDER *prov)
258 if (CRYPTO_UP_REF(&prov->refcnt, &ref, prov->refcnt_lock) <= 0)
263 OSSL_PROVIDER *ossl_provider_new(OPENSSL_CTX *libctx, const char *name,
264 OSSL_provider_init_fn *init_function,
267 struct provider_store_st *store = NULL;
268 OSSL_PROVIDER *prov = NULL;
270 if ((store = get_provider_store(libctx)) == NULL)
273 if ((prov = ossl_provider_find(libctx, name,
274 noconfig)) != NULL) { /* refcount +1 */
275 ossl_provider_free(prov); /* refcount -1 */
276 ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_ALREADY_EXISTS, NULL,
281 /* provider_new() generates an error, so no need here */
282 if ((prov = provider_new(name, init_function)) == NULL)
285 CRYPTO_THREAD_write_lock(store->lock);
286 if (!ossl_provider_up_ref(prov)) { /* +1 One reference for the store */
287 ossl_provider_free(prov); /* -1 Reference that was to be returned */
289 } else if (sk_OSSL_PROVIDER_push(store->providers, prov) == 0) {
290 ossl_provider_free(prov); /* -1 Store reference */
291 ossl_provider_free(prov); /* -1 Reference that was to be returned */
294 prov->libctx = libctx;
297 prov->error_lib = ERR_get_next_error_library();
300 CRYPTO_THREAD_unlock(store->lock);
303 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_NEW, ERR_R_MALLOC_FAILURE);
306 * At this point, the provider is only partially "loaded". To be
307 * fully "loaded", ossl_provider_activate() must also be called.
313 static void free_infopair(INFOPAIR *pair)
315 OPENSSL_free(pair->name);
316 OPENSSL_free(pair->value);
320 void ossl_provider_free(OSSL_PROVIDER *prov)
325 CRYPTO_DOWN_REF(&prov->refcnt, &ref, prov->refcnt_lock);
328 * When the refcount drops below two, the store is the only
329 * possible reference, or it has already been taken away from
330 * the store (this may happen if a provider was activated
331 * because it's a fallback, but isn't currently used)
332 * When that happens, the provider is inactivated.
334 if (ref < 2 && prov->flag_initialized) {
336 ossl_init_thread_deregister(prov);
338 if (prov->teardown != NULL)
339 prov->teardown(prov->provctx);
340 #ifndef OPENSSL_NO_ERR
342 if (prov->error_strings != NULL) {
343 ERR_unload_strings(prov->error_lib, prov->error_strings);
344 OPENSSL_free(prov->error_strings);
345 prov->error_strings = NULL;
349 OPENSSL_free(prov->operation_bits);
350 prov->operation_bits = NULL;
351 prov->operation_bits_sz = 0;
352 prov->flag_initialized = 0;
356 * When the refcount drops to zero, it has been taken out of
357 * the store. All we have to do here is clean it out.
361 DSO_free(prov->module);
363 OPENSSL_free(prov->name);
364 OPENSSL_free(prov->path);
365 sk_INFOPAIR_pop_free(prov->parameters, free_infopair);
367 CRYPTO_THREAD_lock_free(prov->refcnt_lock);
375 int ossl_provider_set_module_path(OSSL_PROVIDER *prov, const char *module_path)
377 OPENSSL_free(prov->path);
378 if (module_path == NULL)
380 if ((prov->path = OPENSSL_strdup(module_path)) != NULL)
382 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_SET_MODULE_PATH, ERR_R_MALLOC_FAILURE);
386 int ossl_provider_add_parameter(OSSL_PROVIDER *prov,
387 const char *name, const char *value)
389 INFOPAIR *pair = NULL;
391 if ((pair = OPENSSL_zalloc(sizeof(*pair))) != NULL
392 && (prov->parameters != NULL
393 || (prov->parameters = sk_INFOPAIR_new_null()) != NULL)
394 && (pair->name = OPENSSL_strdup(name)) != NULL
395 && (pair->value = OPENSSL_strdup(value)) != NULL
396 && sk_INFOPAIR_push(prov->parameters, pair) > 0)
400 OPENSSL_free(pair->name);
401 OPENSSL_free(pair->value);
404 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_ADD_PARAMETER, ERR_R_MALLOC_FAILURE);
409 * Provider activation.
411 * What "activation" means depends on the provider form; for built in
412 * providers (in the library or the application alike), the provider
413 * can already be considered to be loaded, all that's needed is to
414 * initialize it. However, for dynamically loadable provider modules,
415 * we must first load that module.
417 * Built in modules are distinguished from dynamically loaded modules
418 * with an already assigned init function.
420 static const OSSL_DISPATCH *core_dispatch; /* Define further down */
422 int OSSL_PROVIDER_set_default_search_path(OPENSSL_CTX *libctx, const char *path)
424 struct provider_store_st *store;
428 p = OPENSSL_strdup(path);
430 CRYPTOerr(0, ERR_R_MALLOC_FAILURE);
434 if ((store = get_provider_store(libctx)) != NULL
435 && CRYPTO_THREAD_write_lock(store->lock)) {
436 OPENSSL_free(store->default_path);
437 store->default_path = p;
438 CRYPTO_THREAD_unlock(store->lock);
446 * Internal version that doesn't affect the store flags, and thereby avoid
447 * locking. Direct callers must remember to set the store flags when
450 static int provider_activate(OSSL_PROVIDER *prov)
452 const OSSL_DISPATCH *provider_dispatch = NULL;
453 void *tmp_provctx = NULL; /* safety measure */
454 #ifndef OPENSSL_NO_ERR
456 OSSL_FUNC_provider_get_reason_strings_fn *p_get_reason_strings = NULL;
460 if (prov->flag_initialized)
464 * If the init function isn't set, it indicates that this provider is
467 if (prov->init_function == NULL) {
471 if (prov->module == NULL) {
472 char *allocated_path = NULL;
473 const char *module_path = NULL;
474 char *merged_path = NULL;
475 const char *load_dir = NULL;
476 struct provider_store_st *store;
478 if ((prov->module = DSO_new()) == NULL) {
479 /* DSO_new() generates an error already */
483 if ((store = get_provider_store(prov->libctx)) == NULL
484 || !CRYPTO_THREAD_read_lock(store->lock))
486 load_dir = store->default_path;
488 if (load_dir == NULL) {
489 load_dir = ossl_safe_getenv("OPENSSL_MODULES");
490 if (load_dir == NULL)
491 load_dir = MODULESDIR;
494 DSO_ctrl(prov->module, DSO_CTRL_SET_FLAGS,
495 DSO_FLAG_NAME_TRANSLATION_EXT_ONLY, NULL);
497 module_path = prov->path;
498 if (module_path == NULL)
499 module_path = allocated_path =
500 DSO_convert_filename(prov->module, prov->name);
501 if (module_path != NULL)
502 merged_path = DSO_merge(prov->module, module_path, load_dir);
503 CRYPTO_THREAD_unlock(store->lock);
505 if (merged_path == NULL
506 || (DSO_load(prov->module, merged_path, NULL, 0)) == NULL) {
507 DSO_free(prov->module);
511 OPENSSL_free(merged_path);
512 OPENSSL_free(allocated_path);
515 if (prov->module != NULL)
516 prov->init_function = (OSSL_provider_init_fn *)
517 DSO_bind_func(prov->module, "OSSL_provider_init");
521 /* Call the initialise function for the provider. */
522 if (prov->init_function == NULL
523 || !prov->init_function((OSSL_CORE_HANDLE *)prov, core_dispatch,
524 &provider_dispatch, &tmp_provctx)) {
525 ERR_raise_data(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL, NULL,
526 "name=%s", prov->name);
528 DSO_free(prov->module);
533 prov->provctx = tmp_provctx;
535 for (; provider_dispatch->function_id != 0; provider_dispatch++) {
536 switch (provider_dispatch->function_id) {
537 case OSSL_FUNC_PROVIDER_TEARDOWN:
539 OSSL_FUNC_provider_teardown(provider_dispatch);
541 case OSSL_FUNC_PROVIDER_GETTABLE_PARAMS:
542 prov->gettable_params =
543 OSSL_FUNC_provider_gettable_params(provider_dispatch);
545 case OSSL_FUNC_PROVIDER_GET_PARAMS:
547 OSSL_FUNC_provider_get_params(provider_dispatch);
549 case OSSL_FUNC_PROVIDER_SELF_TEST:
551 OSSL_FUNC_provider_self_test(provider_dispatch);
553 case OSSL_FUNC_PROVIDER_GET_CAPABILITIES:
554 prov->get_capabilities =
555 OSSL_FUNC_provider_get_capabilities(provider_dispatch);
557 case OSSL_FUNC_PROVIDER_QUERY_OPERATION:
558 prov->query_operation =
559 OSSL_FUNC_provider_query_operation(provider_dispatch);
561 #ifndef OPENSSL_NO_ERR
563 case OSSL_FUNC_PROVIDER_GET_REASON_STRINGS:
564 p_get_reason_strings =
565 OSSL_FUNC_provider_get_reason_strings(provider_dispatch);
572 #ifndef OPENSSL_NO_ERR
574 if (p_get_reason_strings != NULL) {
575 const OSSL_ITEM *reasonstrings = p_get_reason_strings(prov->provctx);
579 * ERR_load_strings() handles ERR_STRING_DATA rather than OSSL_ITEM,
580 * although they are essentially the same type.
581 * Furthermore, ERR_load_strings() patches the array's error number
582 * with the error library number, so we need to make a copy of that
586 while (reasonstrings[cnt].id != 0) {
587 if (ERR_GET_LIB(reasonstrings[cnt].id) != 0)
591 cnt++; /* One for the terminating item */
593 /* Allocate one extra item for the "library" name */
594 prov->error_strings =
595 OPENSSL_zalloc(sizeof(ERR_STRING_DATA) * (cnt + 1));
596 if (prov->error_strings == NULL)
600 * Set the "library" name.
602 prov->error_strings[0].error = ERR_PACK(prov->error_lib, 0, 0);
603 prov->error_strings[0].string = prov->name;
605 * Copy reasonstrings item 0..cnt-1 to prov->error_trings positions
608 for (cnt2 = 1; cnt2 <= cnt; cnt2++) {
609 prov->error_strings[cnt2].error = (int)reasonstrings[cnt2-1].id;
610 prov->error_strings[cnt2].string = reasonstrings[cnt2-1].ptr;
613 ERR_load_strings(prov->error_lib, prov->error_strings);
618 /* With this flag set, this provider has become fully "loaded". */
619 prov->flag_initialized = 1;
623 int ossl_provider_activate(OSSL_PROVIDER *prov)
625 if (provider_activate(prov)) {
626 CRYPTO_THREAD_write_lock(prov->store->lock);
627 prov->store->use_fallbacks = 0;
628 CRYPTO_THREAD_unlock(prov->store->lock);
635 void *ossl_provider_ctx(const OSSL_PROVIDER *prov)
637 return prov->provctx;
641 static int provider_forall_loaded(struct provider_store_st *store,
642 int *found_activated,
643 int (*cb)(OSSL_PROVIDER *provider,
651 num_provs = sk_OSSL_PROVIDER_num(store->providers);
653 if (found_activated != NULL)
654 *found_activated = 0;
655 for (i = 0; i < num_provs; i++) {
656 OSSL_PROVIDER *prov =
657 sk_OSSL_PROVIDER_value(store->providers, i);
659 if (prov->flag_initialized) {
660 if (found_activated != NULL)
661 *found_activated = 1;
662 if (!(ret = cb(prov, cbdata)))
671 * This function only does something once when store->use_fallbacks == 1,
672 * and then sets store->use_fallbacks = 0, so the second call and so on is
673 * effectively a no-op.
675 static void provider_activate_fallbacks(struct provider_store_st *store)
677 if (store->use_fallbacks) {
678 int num_provs = sk_OSSL_PROVIDER_num(store->providers);
679 int activated_fallback_count = 0;
682 for (i = 0; i < num_provs; i++) {
683 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(store->providers, i);
686 * Activated fallback providers get an extra refcount, to
687 * simulate a regular load.
688 * Note that we don't care if the activation succeeds or not,
689 * other than to maintain a correct refcount. If the activation
690 * doesn't succeed, then any future attempt to use the fallback
691 * provider will fail anyway.
693 if (prov->flag_fallback) {
694 if (ossl_provider_up_ref(prov)) {
695 if (!provider_activate(prov)) {
696 ossl_provider_free(prov);
698 prov->flag_activated_as_fallback = 1;
699 activated_fallback_count++;
706 * We assume that all fallbacks have been added to the store before
707 * any fallback is activated.
708 * TODO: We may have to reconsider this, IF we find ourselves adding
709 * fallbacks after any previous fallback has been activated.
711 if (activated_fallback_count > 0)
712 store->use_fallbacks = 0;
716 int ossl_provider_forall_loaded(OPENSSL_CTX *ctx,
717 int (*cb)(OSSL_PROVIDER *provider,
722 struct provider_store_st *store = get_provider_store(ctx);
726 * Make sure any providers are loaded from config before we try to use
729 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
733 CRYPTO_THREAD_read_lock(store->lock);
735 provider_activate_fallbacks(store);
738 * Now, we sweep through all providers
740 ret = provider_forall_loaded(store, NULL, cb, cbdata);
742 CRYPTO_THREAD_unlock(store->lock);
748 int ossl_provider_available(OSSL_PROVIDER *prov)
751 CRYPTO_THREAD_read_lock(prov->store->lock);
752 provider_activate_fallbacks(prov->store);
753 CRYPTO_THREAD_unlock(prov->store->lock);
755 return prov->flag_initialized;
760 /* Setters of Provider Object data */
761 int ossl_provider_set_fallback(OSSL_PROVIDER *prov)
766 prov->flag_fallback = 1;
770 /* Getters of Provider Object data */
771 const char *ossl_provider_name(const OSSL_PROVIDER *prov)
776 const DSO *ossl_provider_dso(const OSSL_PROVIDER *prov)
781 const char *ossl_provider_module_name(const OSSL_PROVIDER *prov)
786 return DSO_get_filename(prov->module);
790 const char *ossl_provider_module_path(const OSSL_PROVIDER *prov)
795 /* FIXME: Ensure it's a full path */
796 return DSO_get_filename(prov->module);
800 void *ossl_provider_prov_ctx(const OSSL_PROVIDER *prov)
803 return prov->provctx;
808 OPENSSL_CTX *ossl_provider_library_context(const OSSL_PROVIDER *prov)
810 /* TODO(3.0) just: return prov->libctx; */
811 return prov != NULL ? prov->libctx : NULL;
814 /* Wrappers around calls to the provider */
815 void ossl_provider_teardown(const OSSL_PROVIDER *prov)
817 if (prov->teardown != NULL)
818 prov->teardown(prov->provctx);
821 const OSSL_PARAM *ossl_provider_gettable_params(const OSSL_PROVIDER *prov)
823 return prov->gettable_params == NULL
824 ? NULL : prov->gettable_params(prov->provctx);
827 int ossl_provider_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
829 return prov->get_params == NULL
830 ? 0 : prov->get_params(prov->provctx, params);
833 int ossl_provider_self_test(const OSSL_PROVIDER *prov)
837 if (prov->self_test == NULL)
839 ret = prov->self_test(prov->provctx);
841 evp_method_store_flush(ossl_provider_library_context(prov));
845 int ossl_provider_get_capabilities(const OSSL_PROVIDER *prov,
846 const char *capability,
850 return prov->get_capabilities == NULL
851 ? 1 : prov->get_capabilities(prov->provctx, capability, cb, arg);
854 const OSSL_ALGORITHM *ossl_provider_query_operation(const OSSL_PROVIDER *prov,
858 return prov->query_operation(prov->provctx, operation_id, no_cache);
861 int ossl_provider_set_operation_bit(OSSL_PROVIDER *provider, size_t bitnum)
863 size_t byte = bitnum / 8;
864 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
866 if (provider->operation_bits_sz <= byte) {
867 provider->operation_bits = OPENSSL_realloc(provider->operation_bits,
869 if (provider->operation_bits == NULL) {
870 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
873 memset(provider->operation_bits + provider->operation_bits_sz,
874 '\0', byte + 1 - provider->operation_bits_sz);
876 provider->operation_bits[byte] |= bit;
880 int ossl_provider_test_operation_bit(OSSL_PROVIDER *provider, size_t bitnum,
883 size_t byte = bitnum / 8;
884 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
886 if (!ossl_assert(result != NULL)) {
887 ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
892 if (provider->operation_bits_sz > byte)
893 *result = ((provider->operation_bits[byte] & bit) != 0);
898 * Core functions for the provider
899 * ===============================
901 * This is the set of functions that the core makes available to the provider
905 * This returns a list of Provider Object parameters with their types, for
906 * discovery. We do not expect that many providers will use this, but one
909 static const OSSL_PARAM param_types[] = {
910 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
911 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_PROV_NAME, OSSL_PARAM_UTF8_PTR,
914 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_MODULE_FILENAME, OSSL_PARAM_UTF8_PTR,
921 * Forward declare all the functions that are provided aa dispatch.
922 * This ensures that the compiler will complain if they aren't defined
923 * with the correct signature.
925 static OSSL_FUNC_core_gettable_params_fn core_gettable_params;
926 static OSSL_FUNC_core_get_params_fn core_get_params;
927 static OSSL_FUNC_core_thread_start_fn core_thread_start;
928 static OSSL_FUNC_core_get_library_context_fn core_get_libctx;
930 static OSSL_FUNC_core_new_error_fn core_new_error;
931 static OSSL_FUNC_core_set_error_debug_fn core_set_error_debug;
932 static OSSL_FUNC_core_vset_error_fn core_vset_error;
933 static OSSL_FUNC_core_set_error_mark_fn core_set_error_mark;
934 static OSSL_FUNC_core_clear_last_error_mark_fn core_clear_last_error_mark;
935 static OSSL_FUNC_core_pop_error_to_mark_fn core_pop_error_to_mark;
938 static const OSSL_PARAM *core_gettable_params(const OSSL_CORE_HANDLE *handle)
943 static int core_get_params(const OSSL_CORE_HANDLE *handle, OSSL_PARAM params[])
948 * We created this object originally and we know it is actually an
949 * OSSL_PROVIDER *, so the cast is safe
951 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
953 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_VERSION)) != NULL)
954 OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR);
955 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_PROV_NAME)) != NULL)
956 OSSL_PARAM_set_utf8_ptr(p, prov->name);
959 if ((p = OSSL_PARAM_locate(params,
960 OSSL_PROV_PARAM_CORE_MODULE_FILENAME)) != NULL)
961 OSSL_PARAM_set_utf8_ptr(p, ossl_provider_module_path(prov));
964 if (prov->parameters == NULL)
967 for (i = 0; i < sk_INFOPAIR_num(prov->parameters); i++) {
968 INFOPAIR *pair = sk_INFOPAIR_value(prov->parameters, i);
970 if ((p = OSSL_PARAM_locate(params, pair->name)) != NULL)
971 OSSL_PARAM_set_utf8_ptr(p, pair->value);
976 static OPENSSL_CORE_CTX *core_get_libctx(const OSSL_CORE_HANDLE *handle)
979 * We created this object originally and we know it is actually an
980 * OSSL_PROVIDER *, so the cast is safe
982 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
984 return (OPENSSL_CORE_CTX *)ossl_provider_library_context(prov);
987 static int core_thread_start(const OSSL_CORE_HANDLE *handle,
988 OSSL_thread_stop_handler_fn handfn)
991 * We created this object originally and we know it is actually an
992 * OSSL_PROVIDER *, so the cast is safe
994 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
996 return ossl_init_thread_start(prov, prov->provctx, handfn);
1000 * The FIPS module inner provider doesn't implement these. They aren't
1001 * needed there, since the FIPS module upcalls are always the outer provider
1006 * TODO(3.0) These error functions should use |handle| to select the proper
1007 * library context to report in the correct error stack, at least if error
1008 * stacks become tied to the library context.
1009 * We cannot currently do that since there's no support for it in the
1012 static void core_new_error(const OSSL_CORE_HANDLE *handle)
1017 static void core_set_error_debug(const OSSL_CORE_HANDLE *handle,
1018 const char *file, int line, const char *func)
1020 ERR_set_debug(file, line, func);
1023 static void core_vset_error(const OSSL_CORE_HANDLE *handle,
1024 uint32_t reason, const char *fmt, va_list args)
1027 * We created this object originally and we know it is actually an
1028 * OSSL_PROVIDER *, so the cast is safe
1030 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1033 * If the uppermost 8 bits are non-zero, it's an OpenSSL library
1034 * error and will be treated as such. Otherwise, it's a new style
1035 * provider error and will be treated as such.
1037 if (ERR_GET_LIB(reason) != 0) {
1038 ERR_vset_error(ERR_GET_LIB(reason), ERR_GET_REASON(reason), fmt, args);
1040 ERR_vset_error(prov->error_lib, (int)reason, fmt, args);
1044 static int core_set_error_mark(const OSSL_CORE_HANDLE *handle)
1046 return ERR_set_mark();
1049 static int core_clear_last_error_mark(const OSSL_CORE_HANDLE *handle)
1051 return ERR_clear_last_mark();
1054 static int core_pop_error_to_mark(const OSSL_CORE_HANDLE *handle)
1056 return ERR_pop_to_mark();
1058 #endif /* FIPS_MODULE */
1061 * Functions provided by the core. Blank line separates "families" of related
1064 static const OSSL_DISPATCH core_dispatch_[] = {
1065 { OSSL_FUNC_CORE_GETTABLE_PARAMS, (void (*)(void))core_gettable_params },
1066 { OSSL_FUNC_CORE_GET_PARAMS, (void (*)(void))core_get_params },
1067 { OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT, (void (*)(void))core_get_libctx },
1068 { OSSL_FUNC_CORE_THREAD_START, (void (*)(void))core_thread_start },
1070 { OSSL_FUNC_CORE_NEW_ERROR, (void (*)(void))core_new_error },
1071 { OSSL_FUNC_CORE_SET_ERROR_DEBUG, (void (*)(void))core_set_error_debug },
1072 { OSSL_FUNC_CORE_VSET_ERROR, (void (*)(void))core_vset_error },
1073 { OSSL_FUNC_CORE_SET_ERROR_MARK, (void (*)(void))core_set_error_mark },
1074 { OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK,
1075 (void (*)(void))core_clear_last_error_mark },
1076 { OSSL_FUNC_CORE_POP_ERROR_TO_MARK, (void (*)(void))core_pop_error_to_mark },
1077 { OSSL_FUNC_BIO_NEW_FILE, (void (*)(void))BIO_new_file },
1078 { OSSL_FUNC_BIO_NEW_MEMBUF, (void (*)(void))BIO_new_mem_buf },
1079 { OSSL_FUNC_BIO_READ_EX, (void (*)(void))BIO_read_ex },
1080 { OSSL_FUNC_BIO_WRITE_EX, (void (*)(void))BIO_write_ex },
1081 { OSSL_FUNC_BIO_GETS, (void (*)(void))BIO_gets },
1082 { OSSL_FUNC_BIO_PUTS, (void (*)(void))BIO_puts },
1083 { OSSL_FUNC_BIO_FREE, (void (*)(void))BIO_free },
1084 { OSSL_FUNC_BIO_VPRINTF, (void (*)(void))BIO_vprintf },
1085 { OSSL_FUNC_BIO_VSNPRINTF, (void (*)(void))BIO_vsnprintf },
1086 { OSSL_FUNC_SELF_TEST_CB, (void (*)(void))OSSL_SELF_TEST_get_callback },
1088 { OSSL_FUNC_CRYPTO_MALLOC, (void (*)(void))CRYPTO_malloc },
1089 { OSSL_FUNC_CRYPTO_ZALLOC, (void (*)(void))CRYPTO_zalloc },
1090 { OSSL_FUNC_CRYPTO_FREE, (void (*)(void))CRYPTO_free },
1091 { OSSL_FUNC_CRYPTO_CLEAR_FREE, (void (*)(void))CRYPTO_clear_free },
1092 { OSSL_FUNC_CRYPTO_REALLOC, (void (*)(void))CRYPTO_realloc },
1093 { OSSL_FUNC_CRYPTO_CLEAR_REALLOC, (void (*)(void))CRYPTO_clear_realloc },
1094 { OSSL_FUNC_CRYPTO_SECURE_MALLOC, (void (*)(void))CRYPTO_secure_malloc },
1095 { OSSL_FUNC_CRYPTO_SECURE_ZALLOC, (void (*)(void))CRYPTO_secure_zalloc },
1096 { OSSL_FUNC_CRYPTO_SECURE_FREE, (void (*)(void))CRYPTO_secure_free },
1097 { OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE,
1098 (void (*)(void))CRYPTO_secure_clear_free },
1099 { OSSL_FUNC_CRYPTO_SECURE_ALLOCATED,
1100 (void (*)(void))CRYPTO_secure_allocated },
1101 { OSSL_FUNC_OPENSSL_CLEANSE, (void (*)(void))OPENSSL_cleanse },
1105 static const OSSL_DISPATCH *core_dispatch = core_dispatch_;