| /* |
| * Copyright 2020-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <openssl/core.h> |
| #include <openssl/buffer.h> |
| #include "internal/asn1.h" |
| #include "prov/bio.h" |
| #include "endecoder_local.h" |
| |
| OSSL_FUNC_keymgmt_new_fn * |
| ossl_prov_get_keymgmt_new(const OSSL_DISPATCH *fns) |
| { |
| /* Pilfer the keymgmt dispatch table */ |
| for (; fns->function_id != 0; fns++) |
| if (fns->function_id == OSSL_FUNC_KEYMGMT_NEW) |
| return OSSL_FUNC_keymgmt_new(fns); |
| |
| return NULL; |
| } |
| |
| OSSL_FUNC_keymgmt_free_fn * |
| ossl_prov_get_keymgmt_free(const OSSL_DISPATCH *fns) |
| { |
| /* Pilfer the keymgmt dispatch table */ |
| for (; fns->function_id != 0; fns++) |
| if (fns->function_id == OSSL_FUNC_KEYMGMT_FREE) |
| return OSSL_FUNC_keymgmt_free(fns); |
| |
| return NULL; |
| } |
| |
| OSSL_FUNC_keymgmt_import_fn * |
| ossl_prov_get_keymgmt_import(const OSSL_DISPATCH *fns) |
| { |
| /* Pilfer the keymgmt dispatch table */ |
| for (; fns->function_id != 0; fns++) |
| if (fns->function_id == OSSL_FUNC_KEYMGMT_IMPORT) |
| return OSSL_FUNC_keymgmt_import(fns); |
| |
| return NULL; |
| } |
| |
| OSSL_FUNC_keymgmt_export_fn * |
| ossl_prov_get_keymgmt_export(const OSSL_DISPATCH *fns) |
| { |
| /* Pilfer the keymgmt dispatch table */ |
| for (; fns->function_id != 0; fns++) |
| if (fns->function_id == OSSL_FUNC_KEYMGMT_EXPORT) |
| return OSSL_FUNC_keymgmt_export(fns); |
| |
| return NULL; |
| } |
| |
| void *ossl_prov_import_key(const OSSL_DISPATCH *fns, void *provctx, |
| int selection, const OSSL_PARAM params[]) |
| { |
| OSSL_FUNC_keymgmt_new_fn *kmgmt_new = ossl_prov_get_keymgmt_new(fns); |
| OSSL_FUNC_keymgmt_free_fn *kmgmt_free = ossl_prov_get_keymgmt_free(fns); |
| OSSL_FUNC_keymgmt_import_fn *kmgmt_import = |
| ossl_prov_get_keymgmt_import(fns); |
| void *key = NULL; |
| |
| if (kmgmt_new != NULL && kmgmt_import != NULL && kmgmt_free != NULL) { |
| if ((key = kmgmt_new(provctx)) == NULL |
| || !kmgmt_import(key, selection, params)) { |
| kmgmt_free(key); |
| key = NULL; |
| } |
| } |
| return key; |
| } |
| |
| void ossl_prov_free_key(const OSSL_DISPATCH *fns, void *key) |
| { |
| OSSL_FUNC_keymgmt_free_fn *kmgmt_free = ossl_prov_get_keymgmt_free(fns); |
| |
| if (kmgmt_free != NULL) |
| kmgmt_free(key); |
| } |
| |
| int ossl_read_der(PROV_CTX *provctx, OSSL_CORE_BIO *cin, unsigned char **data, |
| long *len) |
| { |
| BUF_MEM *mem = NULL; |
| BIO *in = ossl_bio_new_from_core_bio(provctx, cin); |
| int ok; |
| |
| if (in == NULL) |
| return 0; |
| ok = (asn1_d2i_read_bio(in, &mem) >= 0); |
| if (ok) { |
| *data = (unsigned char *)mem->data; |
| *len = (long)mem->length; |
| OPENSSL_free(mem); |
| } |
| BIO_free(in); |
| return ok; |
| } |