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 OSSL_LIB_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(OSSL_LIB_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 OSSL_LIB_CTX_METHOD provider_store_method = {
187 static struct provider_store_st *get_provider_store(OSSL_LIB_CTX *libctx)
189 struct provider_store_st *store = NULL;
191 store = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_STORE_INDEX,
192 &provider_store_method);
194 CRYPTOerr(CRYPTO_F_GET_PROVIDER_STORE, ERR_R_INTERNAL_ERROR);
198 int ossl_provider_disable_fallback_loading(OSSL_LIB_CTX *libctx)
200 struct provider_store_st *store;
202 if ((store = get_provider_store(libctx)) != NULL) {
203 store->use_fallbacks = 0;
209 OSSL_PROVIDER *ossl_provider_find(OSSL_LIB_CTX *libctx, const char *name,
212 struct provider_store_st *store = NULL;
213 OSSL_PROVIDER *prov = NULL;
215 if ((store = get_provider_store(libctx)) != NULL) {
216 OSSL_PROVIDER tmpl = { 0, };
221 * Make sure any providers are loaded from config before we try to find
225 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
228 tmpl.name = (char *)name;
229 CRYPTO_THREAD_write_lock(store->lock);
230 if ((i = sk_OSSL_PROVIDER_find(store->providers, &tmpl)) == -1
231 || (prov = sk_OSSL_PROVIDER_value(store->providers, i)) == NULL
232 || !ossl_provider_up_ref(prov))
234 CRYPTO_THREAD_unlock(store->lock);
241 * Provider Object methods
242 * =======================
245 static OSSL_PROVIDER *provider_new(const char *name,
246 OSSL_provider_init_fn *init_function)
248 OSSL_PROVIDER *prov = NULL;
250 if ((prov = OPENSSL_zalloc(sizeof(*prov))) == NULL
252 || (prov->refcnt_lock = CRYPTO_THREAD_lock_new()) == NULL
254 || !ossl_provider_up_ref(prov) /* +1 One reference to be returned */
255 || (prov->name = OPENSSL_strdup(name)) == NULL) {
256 ossl_provider_free(prov);
257 CRYPTOerr(CRYPTO_F_PROVIDER_NEW, ERR_R_MALLOC_FAILURE);
261 prov->init_function = init_function;
265 int ossl_provider_up_ref(OSSL_PROVIDER *prov)
269 if (CRYPTO_UP_REF(&prov->refcnt, &ref, prov->refcnt_lock) <= 0)
274 OSSL_PROVIDER *ossl_provider_new(OSSL_LIB_CTX *libctx, const char *name,
275 OSSL_provider_init_fn *init_function,
278 struct provider_store_st *store = NULL;
279 OSSL_PROVIDER *prov = NULL;
281 if ((store = get_provider_store(libctx)) == NULL)
284 if ((prov = ossl_provider_find(libctx, name,
285 noconfig)) != NULL) { /* refcount +1 */
286 ossl_provider_free(prov); /* refcount -1 */
287 ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_ALREADY_EXISTS, NULL,
292 /* provider_new() generates an error, so no need here */
293 if ((prov = provider_new(name, init_function)) == NULL)
296 CRYPTO_THREAD_write_lock(store->lock);
297 if (!ossl_provider_up_ref(prov)) { /* +1 One reference for the store */
298 ossl_provider_free(prov); /* -1 Reference that was to be returned */
300 } else if (sk_OSSL_PROVIDER_push(store->providers, prov) == 0) {
301 ossl_provider_free(prov); /* -1 Store reference */
302 ossl_provider_free(prov); /* -1 Reference that was to be returned */
305 prov->libctx = libctx;
308 prov->error_lib = ERR_get_next_error_library();
311 CRYPTO_THREAD_unlock(store->lock);
314 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_NEW, ERR_R_MALLOC_FAILURE);
317 * At this point, the provider is only partially "loaded". To be
318 * fully "loaded", ossl_provider_activate() must also be called.
324 static void free_infopair(INFOPAIR *pair)
326 OPENSSL_free(pair->name);
327 OPENSSL_free(pair->value);
331 void ossl_provider_free(OSSL_PROVIDER *prov)
336 CRYPTO_DOWN_REF(&prov->refcnt, &ref, prov->refcnt_lock);
339 * When the refcount drops below two, the store is the only
340 * possible reference, or it has already been taken away from
341 * the store (this may happen if a provider was activated
342 * because it's a fallback, but isn't currently used)
343 * When that happens, the provider is inactivated.
345 if (ref < 2 && prov->flag_initialized) {
347 ossl_init_thread_deregister(prov);
349 if (prov->teardown != NULL)
350 prov->teardown(prov->provctx);
351 #ifndef OPENSSL_NO_ERR
353 if (prov->error_strings != NULL) {
354 ERR_unload_strings(prov->error_lib, prov->error_strings);
355 OPENSSL_free(prov->error_strings);
356 prov->error_strings = NULL;
360 OPENSSL_free(prov->operation_bits);
361 prov->operation_bits = NULL;
362 prov->operation_bits_sz = 0;
363 prov->flag_initialized = 0;
367 * When the refcount drops to zero, it has been taken out of
368 * the store. All we have to do here is clean it out.
372 DSO_free(prov->module);
374 OPENSSL_free(prov->name);
375 OPENSSL_free(prov->path);
376 sk_INFOPAIR_pop_free(prov->parameters, free_infopair);
378 CRYPTO_THREAD_lock_free(prov->refcnt_lock);
386 int ossl_provider_set_module_path(OSSL_PROVIDER *prov, const char *module_path)
388 OPENSSL_free(prov->path);
389 if (module_path == NULL)
391 if ((prov->path = OPENSSL_strdup(module_path)) != NULL)
393 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_SET_MODULE_PATH, ERR_R_MALLOC_FAILURE);
397 int ossl_provider_add_parameter(OSSL_PROVIDER *prov,
398 const char *name, const char *value)
400 INFOPAIR *pair = NULL;
402 if ((pair = OPENSSL_zalloc(sizeof(*pair))) != NULL
403 && (prov->parameters != NULL
404 || (prov->parameters = sk_INFOPAIR_new_null()) != NULL)
405 && (pair->name = OPENSSL_strdup(name)) != NULL
406 && (pair->value = OPENSSL_strdup(value)) != NULL
407 && sk_INFOPAIR_push(prov->parameters, pair) > 0)
411 OPENSSL_free(pair->name);
412 OPENSSL_free(pair->value);
415 CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_ADD_PARAMETER, ERR_R_MALLOC_FAILURE);
420 * Provider activation.
422 * What "activation" means depends on the provider form; for built in
423 * providers (in the library or the application alike), the provider
424 * can already be considered to be loaded, all that's needed is to
425 * initialize it. However, for dynamically loadable provider modules,
426 * we must first load that module.
428 * Built in modules are distinguished from dynamically loaded modules
429 * with an already assigned init function.
431 static const OSSL_DISPATCH *core_dispatch; /* Define further down */
433 int OSSL_PROVIDER_set_default_search_path(OSSL_LIB_CTX *libctx,
436 struct provider_store_st *store;
440 p = OPENSSL_strdup(path);
442 CRYPTOerr(0, ERR_R_MALLOC_FAILURE);
446 if ((store = get_provider_store(libctx)) != NULL
447 && CRYPTO_THREAD_write_lock(store->lock)) {
448 OPENSSL_free(store->default_path);
449 store->default_path = p;
450 CRYPTO_THREAD_unlock(store->lock);
458 * Internal version that doesn't affect the store flags, and thereby avoid
459 * locking. Direct callers must remember to set the store flags when
462 static int provider_activate(OSSL_PROVIDER *prov)
464 const OSSL_DISPATCH *provider_dispatch = NULL;
465 void *tmp_provctx = NULL; /* safety measure */
466 #ifndef OPENSSL_NO_ERR
468 OSSL_FUNC_provider_get_reason_strings_fn *p_get_reason_strings = NULL;
472 if (prov->flag_initialized)
476 * If the init function isn't set, it indicates that this provider is
479 if (prov->init_function == NULL) {
483 if (prov->module == NULL) {
484 char *allocated_path = NULL;
485 const char *module_path = NULL;
486 char *merged_path = NULL;
487 const char *load_dir = NULL;
488 struct provider_store_st *store;
490 if ((prov->module = DSO_new()) == NULL) {
491 /* DSO_new() generates an error already */
495 if ((store = get_provider_store(prov->libctx)) == NULL
496 || !CRYPTO_THREAD_read_lock(store->lock))
498 load_dir = store->default_path;
500 if (load_dir == NULL) {
501 load_dir = ossl_safe_getenv("OPENSSL_MODULES");
502 if (load_dir == NULL)
503 load_dir = MODULESDIR;
506 DSO_ctrl(prov->module, DSO_CTRL_SET_FLAGS,
507 DSO_FLAG_NAME_TRANSLATION_EXT_ONLY, NULL);
509 module_path = prov->path;
510 if (module_path == NULL)
511 module_path = allocated_path =
512 DSO_convert_filename(prov->module, prov->name);
513 if (module_path != NULL)
514 merged_path = DSO_merge(prov->module, module_path, load_dir);
515 CRYPTO_THREAD_unlock(store->lock);
517 if (merged_path == NULL
518 || (DSO_load(prov->module, merged_path, NULL, 0)) == NULL) {
519 DSO_free(prov->module);
523 OPENSSL_free(merged_path);
524 OPENSSL_free(allocated_path);
527 if (prov->module != NULL)
528 prov->init_function = (OSSL_provider_init_fn *)
529 DSO_bind_func(prov->module, "OSSL_provider_init");
533 /* Call the initialise function for the provider. */
534 if (prov->init_function == NULL
535 || !prov->init_function((OSSL_CORE_HANDLE *)prov, core_dispatch,
536 &provider_dispatch, &tmp_provctx)) {
537 ERR_raise_data(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL, NULL,
538 "name=%s", prov->name);
540 DSO_free(prov->module);
545 prov->provctx = tmp_provctx;
547 for (; provider_dispatch->function_id != 0; provider_dispatch++) {
548 switch (provider_dispatch->function_id) {
549 case OSSL_FUNC_PROVIDER_TEARDOWN:
551 OSSL_FUNC_provider_teardown(provider_dispatch);
553 case OSSL_FUNC_PROVIDER_GETTABLE_PARAMS:
554 prov->gettable_params =
555 OSSL_FUNC_provider_gettable_params(provider_dispatch);
557 case OSSL_FUNC_PROVIDER_GET_PARAMS:
559 OSSL_FUNC_provider_get_params(provider_dispatch);
561 case OSSL_FUNC_PROVIDER_SELF_TEST:
563 OSSL_FUNC_provider_self_test(provider_dispatch);
565 case OSSL_FUNC_PROVIDER_GET_CAPABILITIES:
566 prov->get_capabilities =
567 OSSL_FUNC_provider_get_capabilities(provider_dispatch);
569 case OSSL_FUNC_PROVIDER_QUERY_OPERATION:
570 prov->query_operation =
571 OSSL_FUNC_provider_query_operation(provider_dispatch);
573 #ifndef OPENSSL_NO_ERR
575 case OSSL_FUNC_PROVIDER_GET_REASON_STRINGS:
576 p_get_reason_strings =
577 OSSL_FUNC_provider_get_reason_strings(provider_dispatch);
584 #ifndef OPENSSL_NO_ERR
586 if (p_get_reason_strings != NULL) {
587 const OSSL_ITEM *reasonstrings = p_get_reason_strings(prov->provctx);
591 * ERR_load_strings() handles ERR_STRING_DATA rather than OSSL_ITEM,
592 * although they are essentially the same type.
593 * Furthermore, ERR_load_strings() patches the array's error number
594 * with the error library number, so we need to make a copy of that
598 while (reasonstrings[cnt].id != 0) {
599 if (ERR_GET_LIB(reasonstrings[cnt].id) != 0)
603 cnt++; /* One for the terminating item */
605 /* Allocate one extra item for the "library" name */
606 prov->error_strings =
607 OPENSSL_zalloc(sizeof(ERR_STRING_DATA) * (cnt + 1));
608 if (prov->error_strings == NULL)
612 * Set the "library" name.
614 prov->error_strings[0].error = ERR_PACK(prov->error_lib, 0, 0);
615 prov->error_strings[0].string = prov->name;
617 * Copy reasonstrings item 0..cnt-1 to prov->error_trings positions
620 for (cnt2 = 1; cnt2 <= cnt; cnt2++) {
621 prov->error_strings[cnt2].error = (int)reasonstrings[cnt2-1].id;
622 prov->error_strings[cnt2].string = reasonstrings[cnt2-1].ptr;
625 ERR_load_strings(prov->error_lib, prov->error_strings);
630 /* With this flag set, this provider has become fully "loaded". */
631 prov->flag_initialized = 1;
635 int ossl_provider_activate(OSSL_PROVIDER *prov)
637 if (provider_activate(prov)) {
638 CRYPTO_THREAD_write_lock(prov->store->lock);
639 prov->store->use_fallbacks = 0;
640 CRYPTO_THREAD_unlock(prov->store->lock);
647 void *ossl_provider_ctx(const OSSL_PROVIDER *prov)
649 return prov->provctx;
653 static int provider_forall_loaded(struct provider_store_st *store,
654 int *found_activated,
655 int (*cb)(OSSL_PROVIDER *provider,
663 num_provs = sk_OSSL_PROVIDER_num(store->providers);
665 if (found_activated != NULL)
666 *found_activated = 0;
667 for (i = 0; i < num_provs; i++) {
668 OSSL_PROVIDER *prov =
669 sk_OSSL_PROVIDER_value(store->providers, i);
671 if (prov->flag_initialized) {
672 if (found_activated != NULL)
673 *found_activated = 1;
674 if (!(ret = cb(prov, cbdata)))
683 * This function only does something once when store->use_fallbacks == 1,
684 * and then sets store->use_fallbacks = 0, so the second call and so on is
685 * effectively a no-op.
687 static void provider_activate_fallbacks(struct provider_store_st *store)
689 if (store->use_fallbacks) {
690 int num_provs = sk_OSSL_PROVIDER_num(store->providers);
691 int activated_fallback_count = 0;
694 for (i = 0; i < num_provs; i++) {
695 OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(store->providers, i);
698 * Activated fallback providers get an extra refcount, to
699 * simulate a regular load.
700 * Note that we don't care if the activation succeeds or not,
701 * other than to maintain a correct refcount. If the activation
702 * doesn't succeed, then any future attempt to use the fallback
703 * provider will fail anyway.
705 if (prov->flag_fallback) {
706 if (ossl_provider_up_ref(prov)) {
707 if (!provider_activate(prov)) {
708 ossl_provider_free(prov);
710 prov->flag_activated_as_fallback = 1;
711 activated_fallback_count++;
718 * We assume that all fallbacks have been added to the store before
719 * any fallback is activated.
720 * TODO: We may have to reconsider this, IF we find ourselves adding
721 * fallbacks after any previous fallback has been activated.
723 if (activated_fallback_count > 0)
724 store->use_fallbacks = 0;
728 int ossl_provider_forall_loaded(OSSL_LIB_CTX *ctx,
729 int (*cb)(OSSL_PROVIDER *provider,
734 struct provider_store_st *store = get_provider_store(ctx);
738 * Make sure any providers are loaded from config before we try to use
741 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
745 CRYPTO_THREAD_read_lock(store->lock);
747 provider_activate_fallbacks(store);
750 * Now, we sweep through all providers
752 ret = provider_forall_loaded(store, NULL, cb, cbdata);
754 CRYPTO_THREAD_unlock(store->lock);
760 int ossl_provider_available(OSSL_PROVIDER *prov)
763 CRYPTO_THREAD_read_lock(prov->store->lock);
764 provider_activate_fallbacks(prov->store);
765 CRYPTO_THREAD_unlock(prov->store->lock);
767 return prov->flag_initialized;
772 /* Setters of Provider Object data */
773 int ossl_provider_set_fallback(OSSL_PROVIDER *prov)
778 prov->flag_fallback = 1;
782 /* Getters of Provider Object data */
783 const char *ossl_provider_name(const OSSL_PROVIDER *prov)
788 const DSO *ossl_provider_dso(const OSSL_PROVIDER *prov)
793 const char *ossl_provider_module_name(const OSSL_PROVIDER *prov)
798 return DSO_get_filename(prov->module);
802 const char *ossl_provider_module_path(const OSSL_PROVIDER *prov)
807 /* FIXME: Ensure it's a full path */
808 return DSO_get_filename(prov->module);
812 void *ossl_provider_prov_ctx(const OSSL_PROVIDER *prov)
815 return prov->provctx;
820 OSSL_LIB_CTX *ossl_provider_libctx(const OSSL_PROVIDER *prov)
822 /* TODO(3.0) just: return prov->libctx; */
823 return prov != NULL ? prov->libctx : NULL;
826 /* Wrappers around calls to the provider */
827 void ossl_provider_teardown(const OSSL_PROVIDER *prov)
829 if (prov->teardown != NULL)
830 prov->teardown(prov->provctx);
833 const OSSL_PARAM *ossl_provider_gettable_params(const OSSL_PROVIDER *prov)
835 return prov->gettable_params == NULL
836 ? NULL : prov->gettable_params(prov->provctx);
839 int ossl_provider_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
841 return prov->get_params == NULL
842 ? 0 : prov->get_params(prov->provctx, params);
845 int ossl_provider_self_test(const OSSL_PROVIDER *prov)
849 if (prov->self_test == NULL)
851 ret = prov->self_test(prov->provctx);
853 evp_method_store_flush(ossl_provider_libctx(prov));
857 int ossl_provider_get_capabilities(const OSSL_PROVIDER *prov,
858 const char *capability,
862 return prov->get_capabilities == NULL
863 ? 1 : prov->get_capabilities(prov->provctx, capability, cb, arg);
866 const OSSL_ALGORITHM *ossl_provider_query_operation(const OSSL_PROVIDER *prov,
870 return prov->query_operation == NULL
871 ? NULL : prov->query_operation(prov->provctx, operation_id, no_cache);
874 int ossl_provider_set_operation_bit(OSSL_PROVIDER *provider, size_t bitnum)
876 size_t byte = bitnum / 8;
877 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
879 if (provider->operation_bits_sz <= byte) {
880 unsigned char *tmp = OPENSSL_realloc(provider->operation_bits,
884 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
887 provider->operation_bits = tmp;
888 memset(provider->operation_bits + provider->operation_bits_sz,
889 '\0', byte + 1 - provider->operation_bits_sz);
890 provider->operation_bits_sz = byte + 1;
892 provider->operation_bits[byte] |= bit;
896 int ossl_provider_test_operation_bit(OSSL_PROVIDER *provider, size_t bitnum,
899 size_t byte = bitnum / 8;
900 unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
902 if (!ossl_assert(result != NULL)) {
903 ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
908 if (provider->operation_bits_sz > byte)
909 *result = ((provider->operation_bits[byte] & bit) != 0);
914 * Core functions for the provider
915 * ===============================
917 * This is the set of functions that the core makes available to the provider
921 * This returns a list of Provider Object parameters with their types, for
922 * discovery. We do not expect that many providers will use this, but one
925 static const OSSL_PARAM param_types[] = {
926 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
927 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_PROV_NAME, OSSL_PARAM_UTF8_PTR,
930 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_MODULE_FILENAME, OSSL_PARAM_UTF8_PTR,
937 * Forward declare all the functions that are provided aa dispatch.
938 * This ensures that the compiler will complain if they aren't defined
939 * with the correct signature.
941 static OSSL_FUNC_core_gettable_params_fn core_gettable_params;
942 static OSSL_FUNC_core_get_params_fn core_get_params;
943 static OSSL_FUNC_core_thread_start_fn core_thread_start;
944 static OSSL_FUNC_core_get_libctx_fn core_get_libctx;
946 static OSSL_FUNC_core_new_error_fn core_new_error;
947 static OSSL_FUNC_core_set_error_debug_fn core_set_error_debug;
948 static OSSL_FUNC_core_vset_error_fn core_vset_error;
949 static OSSL_FUNC_core_set_error_mark_fn core_set_error_mark;
950 static OSSL_FUNC_core_clear_last_error_mark_fn core_clear_last_error_mark;
951 static OSSL_FUNC_core_pop_error_to_mark_fn core_pop_error_to_mark;
954 static const OSSL_PARAM *core_gettable_params(const OSSL_CORE_HANDLE *handle)
959 static int core_get_params(const OSSL_CORE_HANDLE *handle, OSSL_PARAM params[])
964 * We created this object originally and we know it is actually an
965 * OSSL_PROVIDER *, so the cast is safe
967 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
969 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_VERSION)) != NULL)
970 OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR);
971 if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_PROV_NAME)) != NULL)
972 OSSL_PARAM_set_utf8_ptr(p, prov->name);
975 if ((p = OSSL_PARAM_locate(params,
976 OSSL_PROV_PARAM_CORE_MODULE_FILENAME)) != NULL)
977 OSSL_PARAM_set_utf8_ptr(p, ossl_provider_module_path(prov));
980 if (prov->parameters == NULL)
983 for (i = 0; i < sk_INFOPAIR_num(prov->parameters); i++) {
984 INFOPAIR *pair = sk_INFOPAIR_value(prov->parameters, i);
986 if ((p = OSSL_PARAM_locate(params, pair->name)) != NULL)
987 OSSL_PARAM_set_utf8_ptr(p, pair->value);
992 static OPENSSL_CORE_CTX *core_get_libctx(const OSSL_CORE_HANDLE *handle)
995 * We created this object originally and we know it is actually an
996 * OSSL_PROVIDER *, so the cast is safe
998 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1000 return (OPENSSL_CORE_CTX *)ossl_provider_libctx(prov);
1003 static int core_thread_start(const OSSL_CORE_HANDLE *handle,
1004 OSSL_thread_stop_handler_fn handfn)
1007 * We created this object originally and we know it is actually an
1008 * OSSL_PROVIDER *, so the cast is safe
1010 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1012 return ossl_init_thread_start(prov, prov->provctx, handfn);
1016 * The FIPS module inner provider doesn't implement these. They aren't
1017 * needed there, since the FIPS module upcalls are always the outer provider
1022 * TODO(3.0) These error functions should use |handle| to select the proper
1023 * library context to report in the correct error stack, at least if error
1024 * stacks become tied to the library context.
1025 * We cannot currently do that since there's no support for it in the
1028 static void core_new_error(const OSSL_CORE_HANDLE *handle)
1033 static void core_set_error_debug(const OSSL_CORE_HANDLE *handle,
1034 const char *file, int line, const char *func)
1036 ERR_set_debug(file, line, func);
1039 static void core_vset_error(const OSSL_CORE_HANDLE *handle,
1040 uint32_t reason, const char *fmt, va_list args)
1043 * We created this object originally and we know it is actually an
1044 * OSSL_PROVIDER *, so the cast is safe
1046 OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
1049 * If the uppermost 8 bits are non-zero, it's an OpenSSL library
1050 * error and will be treated as such. Otherwise, it's a new style
1051 * provider error and will be treated as such.
1053 if (ERR_GET_LIB(reason) != 0) {
1054 ERR_vset_error(ERR_GET_LIB(reason), ERR_GET_REASON(reason), fmt, args);
1056 ERR_vset_error(prov->error_lib, (int)reason, fmt, args);
1060 static int core_set_error_mark(const OSSL_CORE_HANDLE *handle)
1062 return ERR_set_mark();
1065 static int core_clear_last_error_mark(const OSSL_CORE_HANDLE *handle)
1067 return ERR_clear_last_mark();
1070 static int core_pop_error_to_mark(const OSSL_CORE_HANDLE *handle)
1072 return ERR_pop_to_mark();
1074 #endif /* FIPS_MODULE */
1077 * Functions provided by the core. Blank line separates "families" of related
1080 static const OSSL_DISPATCH core_dispatch_[] = {
1081 { OSSL_FUNC_CORE_GETTABLE_PARAMS, (void (*)(void))core_gettable_params },
1082 { OSSL_FUNC_CORE_GET_PARAMS, (void (*)(void))core_get_params },
1083 { OSSL_FUNC_CORE_GET_LIBCTX, (void (*)(void))core_get_libctx },
1084 { OSSL_FUNC_CORE_THREAD_START, (void (*)(void))core_thread_start },
1086 { OSSL_FUNC_CORE_NEW_ERROR, (void (*)(void))core_new_error },
1087 { OSSL_FUNC_CORE_SET_ERROR_DEBUG, (void (*)(void))core_set_error_debug },
1088 { OSSL_FUNC_CORE_VSET_ERROR, (void (*)(void))core_vset_error },
1089 { OSSL_FUNC_CORE_SET_ERROR_MARK, (void (*)(void))core_set_error_mark },
1090 { OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK,
1091 (void (*)(void))core_clear_last_error_mark },
1092 { OSSL_FUNC_CORE_POP_ERROR_TO_MARK, (void (*)(void))core_pop_error_to_mark },
1093 { OSSL_FUNC_BIO_NEW_FILE, (void (*)(void))BIO_new_file },
1094 { OSSL_FUNC_BIO_NEW_MEMBUF, (void (*)(void))BIO_new_mem_buf },
1095 { OSSL_FUNC_BIO_READ_EX, (void (*)(void))BIO_read_ex },
1096 { OSSL_FUNC_BIO_WRITE_EX, (void (*)(void))BIO_write_ex },
1097 { OSSL_FUNC_BIO_GETS, (void (*)(void))BIO_gets },
1098 { OSSL_FUNC_BIO_PUTS, (void (*)(void))BIO_puts },
1099 { OSSL_FUNC_BIO_CTRL, (void (*)(void))BIO_ctrl },
1100 { OSSL_FUNC_BIO_FREE, (void (*)(void))BIO_free },
1101 { OSSL_FUNC_BIO_VPRINTF, (void (*)(void))BIO_vprintf },
1102 { OSSL_FUNC_BIO_VSNPRINTF, (void (*)(void))BIO_vsnprintf },
1103 { OSSL_FUNC_SELF_TEST_CB, (void (*)(void))OSSL_SELF_TEST_get_callback },
1105 { OSSL_FUNC_CRYPTO_MALLOC, (void (*)(void))CRYPTO_malloc },
1106 { OSSL_FUNC_CRYPTO_ZALLOC, (void (*)(void))CRYPTO_zalloc },
1107 { OSSL_FUNC_CRYPTO_FREE, (void (*)(void))CRYPTO_free },
1108 { OSSL_FUNC_CRYPTO_CLEAR_FREE, (void (*)(void))CRYPTO_clear_free },
1109 { OSSL_FUNC_CRYPTO_REALLOC, (void (*)(void))CRYPTO_realloc },
1110 { OSSL_FUNC_CRYPTO_CLEAR_REALLOC, (void (*)(void))CRYPTO_clear_realloc },
1111 { OSSL_FUNC_CRYPTO_SECURE_MALLOC, (void (*)(void))CRYPTO_secure_malloc },
1112 { OSSL_FUNC_CRYPTO_SECURE_ZALLOC, (void (*)(void))CRYPTO_secure_zalloc },
1113 { OSSL_FUNC_CRYPTO_SECURE_FREE, (void (*)(void))CRYPTO_secure_free },
1114 { OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE,
1115 (void (*)(void))CRYPTO_secure_clear_free },
1116 { OSSL_FUNC_CRYPTO_SECURE_ALLOCATED,
1117 (void (*)(void))CRYPTO_secure_allocated },
1118 { OSSL_FUNC_OPENSSL_CLEANSE, (void (*)(void))OPENSSL_cleanse },
1122 static const OSSL_DISPATCH *core_dispatch = core_dispatch_;