struct ossl_provider_st {
/* Flag bits */
unsigned int flag_initialized:1;
- unsigned int flag_fallback:1;
+ unsigned int flag_fallback:1; /* Can be used as fallback */
+ unsigned int flag_activated_as_fallback:1;
/* OpenSSL library side data */
CRYPTO_REF_COUNT refcnt;
OSSL_provider_get_params_fn *get_params;
OSSL_provider_query_operation_fn *query_operation;
+ /*
+ * Cache of bit to indicate of query_operation() has been called on
+ * a specific operation or not.
+ */
+ unsigned char *operation_bits;
+ size_t operation_bits_sz;
+
/* Provider side data */
void *provctx;
};
unsigned int use_fallbacks:1;
};
+/*
+ * provider_deactivate_free() is a wrapper around ossl_provider_free()
+ * that also makes sure that activated fallback providers are deactivated.
+ * This is simply done by freeing them an extra time, to compensate for the
+ * refcount that provider_activate_fallbacks() gives them.
+ * Since this is only called when the provider store is being emptied, we
+ * don't need to care about any lock.
+ */
+static void provider_deactivate_free(OSSL_PROVIDER *prov)
+{
+ int extra_free = (prov->flag_initialized
+ && prov->flag_activated_as_fallback);
+
+ if (extra_free)
+ ossl_provider_free(prov);
+ ossl_provider_free(prov);
+}
+
static void provider_store_free(void *vstore)
{
struct provider_store_st *store = vstore;
if (store == NULL)
return;
OPENSSL_free(store->default_path);
- sk_OSSL_PROVIDER_pop_free(store->providers, ossl_provider_free);
+ sk_OSSL_PROVIDER_pop_free(store->providers, provider_deactivate_free);
CRYPTO_THREAD_lock_free(store->lock);
OPENSSL_free(store);
}
}
# endif
#endif
+ OPENSSL_free(prov->operation_bits);
+ prov->operation_bits = NULL;
+ prov->operation_bits_sz = 0;
prov->flag_initialized = 0;
}
OSSL_PROVIDER *prov = sk_OSSL_PROVIDER_value(store->providers, i);
/*
- * Note that we don't care if the activation succeeds or not.
- * If it doesn't succeed, then any attempt to use any of the
- * fallback providers will fail anyway.
+ * Activated fallback providers get an extra refcount, to
+ * simulate a regular load.
+ * Note that we don't care if the activation succeeds or not,
+ * other than to maintain a correct refcount. If the activation
+ * doesn't succeed, then any future attempt to use the fallback
+ * provider will fail anyway.
*/
if (prov->flag_fallback) {
- activated_fallback_count++;
- provider_activate(prov);
+ if (ossl_provider_up_ref(prov)) {
+ if (!provider_activate(prov)) {
+ ossl_provider_free(prov);
+ } else {
+ prov->flag_activated_as_fallback = 1;
+ activated_fallback_count++;
+ }
+ }
}
}
#endif
}
+void *ossl_provider_prov_ctx(const OSSL_PROVIDER *prov)
+{
+ if (prov != NULL)
+ return prov->provctx;
+
+ return NULL;
+}
+
OPENSSL_CTX *ossl_provider_library_context(const OSSL_PROVIDER *prov)
{
/* TODO(3.0) just: return prov->libctx; */
return prov->query_operation(prov->provctx, operation_id, no_cache);
}
+int ossl_provider_set_operation_bit(OSSL_PROVIDER *provider, size_t bitnum)
+{
+ size_t byte = bitnum / 8;
+ unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
+
+ if (provider->operation_bits_sz <= byte) {
+ provider->operation_bits = OPENSSL_realloc(provider->operation_bits,
+ byte + 1);
+ if (provider->operation_bits == NULL) {
+ ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ memset(provider->operation_bits + provider->operation_bits_sz,
+ '\0', byte + 1 - provider->operation_bits_sz);
+ }
+ provider->operation_bits[byte] |= bit;
+ return 1;
+}
+
+int ossl_provider_test_operation_bit(OSSL_PROVIDER *provider, size_t bitnum,
+ int *result)
+{
+ size_t byte = bitnum / 8;
+ unsigned char bit = (1 << (bitnum % 8)) & 0xFF;
+
+ if (!ossl_assert(result != NULL)) {
+ ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ *result = 0;
+ if (provider->operation_bits_sz > byte)
+ *result = ((provider->operation_bits[byte] & bit) != 0);
+ return 1;
+}
+
/*-
* Core functions for the provider
* ===============================
* never knows.
*/
static const OSSL_PARAM param_types[] = {
- OSSL_PARAM_DEFN("openssl-version", OSSL_PARAM_UTF8_PTR, NULL, 0),
- OSSL_PARAM_DEFN("provider-name", OSSL_PARAM_UTF8_PTR, NULL, 0),
+ OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
+ OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_PROV_NAME, OSSL_PARAM_UTF8_PTR,
+ NULL, 0),
+#ifndef FIPS_MODULE
+ OSSL_PARAM_DEFN(OSSL_PROV_PARAM_CORE_MODULE_FILENAME, OSSL_PARAM_UTF8_PTR,
+ NULL, 0),
+#endif
OSSL_PARAM_END
};
*/
OSSL_PROVIDER *prov = (OSSL_PROVIDER *)handle;
- if ((p = OSSL_PARAM_locate(params, "openssl-version")) != NULL)
+ if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_VERSION)) != NULL)
OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR);
- if ((p = OSSL_PARAM_locate(params, "provider-name")) != NULL)
+ if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_CORE_PROV_NAME)) != NULL)
OSSL_PARAM_set_utf8_ptr(p, prov->name);
#ifndef FIPS_MODULE
- if ((p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_MODULE_FILENAME)) != NULL)
+ if ((p = OSSL_PARAM_locate(params,
+ OSSL_PROV_PARAM_CORE_MODULE_FILENAME)) != NULL)
OSSL_PARAM_set_utf8_ptr(p, ossl_provider_module_path(prov));
#endif
projects / openssl.git / blobdiff