| /* | 
 |  * Copyright 2020-2021 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 "internal/e_os.h" | 
 | #include <string.h> | 
 |  | 
 | #include <openssl/core.h> | 
 | #include <openssl/core_names.h> | 
 | #include <openssl/core_object.h> | 
 | #include <openssl/err.h> | 
 | #include <openssl/pkcs12.h> | 
 | #include <openssl/provider.h> | 
 | #include <openssl/decoder.h> | 
 | #include <openssl/store.h> | 
 | #include "internal/provider.h" | 
 | #include "internal/passphrase.h" | 
 | #include "crypto/evp.h" | 
 | #include "crypto/x509.h" | 
 | #include "store_local.h" | 
 |  | 
 | #ifndef OSSL_OBJECT_PKCS12 | 
 | /* | 
 |  * The object abstraction doesn't know PKCS#12, but we want to indicate | 
 |  * it anyway, so we create our own.  Since the public macros use positive | 
 |  * numbers, negative ones should be fine.  They must never slip out from | 
 |  * this translation unit anyway. | 
 |  */ | 
 | # define OSSL_OBJECT_PKCS12 -1 | 
 | #endif | 
 |  | 
 | /* | 
 |  * ossl_store_handle_load_result() is initially written to be a companion | 
 |  * to our 'file:' scheme provider implementation, but has been made generic | 
 |  * to serve others as well. | 
 |  * | 
 |  * This result handler takes any object abstraction (see provider-object(7)) | 
 |  * and does the best it can with it.  If the object is passed by value (not | 
 |  * by reference), the contents are currently expected to be DER encoded. | 
 |  * If an object type is specified, that will be respected; otherwise, this | 
 |  * handler will guess the contents, by trying the following in order: | 
 |  * | 
 |  * 1.  Decode it into an EVP_PKEY, using OSSL_DECODER. | 
 |  * 2.  Decode it into an X.509 certificate, using d2i_X509 / d2i_X509_AUX. | 
 |  * 3.  Decode it into an X.509 CRL, using d2i_X509_CRL. | 
 |  * 4.  Decode it into a PKCS#12 structure, using d2i_PKCS12 (*). | 
 |  * | 
 |  * For the 'file:' scheme implementation, this is division of labor.  Since | 
 |  * the libcrypto <-> provider interface currently doesn't support certain | 
 |  * structures as first class objects, they must be unpacked from DER here | 
 |  * rather than in the provider.  The current exception is asymmetric keys, | 
 |  * which can reside within the provider boundary, most of all thanks to | 
 |  * OSSL_FUNC_keymgmt_load(), which allows loading the key material by | 
 |  * reference. | 
 |  */ | 
 |  | 
 | struct extracted_param_data_st { | 
 |     int object_type; | 
 |     const char *data_type; | 
 |     const char *data_structure; | 
 |     const char *utf8_data; | 
 |     const void *octet_data; | 
 |     size_t octet_data_size; | 
 |     const void *ref; | 
 |     size_t ref_size; | 
 |     const char *desc; | 
 | }; | 
 |  | 
 | static int try_name(struct extracted_param_data_st *, OSSL_STORE_INFO **); | 
 | static int try_key(struct extracted_param_data_st *, OSSL_STORE_INFO **, | 
 |                    OSSL_STORE_CTX *, const OSSL_PROVIDER *, | 
 |                    OSSL_LIB_CTX *, const char *); | 
 | static int try_cert(struct extracted_param_data_st *, OSSL_STORE_INFO **, | 
 |                     OSSL_LIB_CTX *, const char *); | 
 | static int try_crl(struct extracted_param_data_st *, OSSL_STORE_INFO **, | 
 |                    OSSL_LIB_CTX *, const char *); | 
 | static int try_pkcs12(struct extracted_param_data_st *, OSSL_STORE_INFO **, | 
 |                       OSSL_STORE_CTX *, OSSL_LIB_CTX *, const char *); | 
 |  | 
 | int ossl_store_handle_load_result(const OSSL_PARAM params[], void *arg) | 
 | { | 
 |     struct ossl_load_result_data_st *cbdata = arg; | 
 |     OSSL_STORE_INFO **v = &cbdata->v; | 
 |     OSSL_STORE_CTX *ctx = cbdata->ctx; | 
 |     const OSSL_PROVIDER *provider = | 
 |         OSSL_STORE_LOADER_get0_provider(ctx->fetched_loader); | 
 |     OSSL_LIB_CTX *libctx = ossl_provider_libctx(provider); | 
 |     const char *propq = ctx->properties; | 
 |     const OSSL_PARAM *p; | 
 |     struct extracted_param_data_st helper_data; | 
 |  | 
 |     memset(&helper_data, 0, sizeof(helper_data)); | 
 |     helper_data.object_type = OSSL_OBJECT_UNKNOWN; | 
 |  | 
 |     if ((p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_TYPE)) != NULL | 
 |         && !OSSL_PARAM_get_int(p, &helper_data.object_type)) | 
 |         return 0; | 
 |     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_TYPE); | 
 |     if (p != NULL | 
 |         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_type)) | 
 |         return 0; | 
 |     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA); | 
 |     if (p != NULL | 
 |         && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.octet_data, | 
 |                                             &helper_data.octet_data_size) | 
 |         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.utf8_data)) | 
 |         return 0; | 
 |     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_STRUCTURE); | 
 |     if (p != NULL | 
 |         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_structure)) | 
 |         return 0; | 
 |     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_REFERENCE); | 
 |     if (p != NULL && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.ref, | 
 |                                                       &helper_data.ref_size)) | 
 |         return 0; | 
 |     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DESC); | 
 |     if (p != NULL && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.desc)) | 
 |         return 0; | 
 |  | 
 |     /* | 
 |      * The helper functions return 0 on actual errors, otherwise 1, even if | 
 |      * they didn't fill out |*v|. | 
 |      */ | 
 |     ERR_set_mark(); | 
 |     if (*v == NULL && !try_name(&helper_data, v)) | 
 |         goto err; | 
 |     ERR_pop_to_mark(); | 
 |     ERR_set_mark(); | 
 |     if (*v == NULL && !try_key(&helper_data, v, ctx, provider, libctx, propq)) | 
 |         goto err; | 
 |     ERR_pop_to_mark(); | 
 |     ERR_set_mark(); | 
 |     if (*v == NULL && !try_cert(&helper_data, v, libctx, propq)) | 
 |         goto err; | 
 |     ERR_pop_to_mark(); | 
 |     ERR_set_mark(); | 
 |     if (*v == NULL && !try_crl(&helper_data, v, libctx, propq)) | 
 |         goto err; | 
 |     ERR_pop_to_mark(); | 
 |     ERR_set_mark(); | 
 |     if (*v == NULL && !try_pkcs12(&helper_data, v, ctx, libctx, propq)) | 
 |         goto err; | 
 |     ERR_pop_to_mark(); | 
 |  | 
 |     if (*v == NULL) | 
 |         ERR_raise(ERR_LIB_OSSL_STORE, ERR_R_UNSUPPORTED); | 
 |  | 
 |     return (*v != NULL); | 
 |  err: | 
 |     ERR_clear_last_mark(); | 
 |     return 0; | 
 | } | 
 |  | 
 | static int try_name(struct extracted_param_data_st *data, OSSL_STORE_INFO **v) | 
 | { | 
 |     if (data->object_type == OSSL_OBJECT_NAME) { | 
 |         char *newname = NULL, *newdesc = NULL; | 
 |  | 
 |         if (data->utf8_data == NULL) | 
 |             return 0; | 
 |         if ((newname = OPENSSL_strdup(data->utf8_data)) == NULL | 
 |             || (data->desc != NULL | 
 |                 && (newdesc = OPENSSL_strdup(data->desc)) == NULL) | 
 |             || (*v = OSSL_STORE_INFO_new_NAME(newname)) == NULL) { | 
 |             OPENSSL_free(newname); | 
 |             OPENSSL_free(newdesc); | 
 |             return 0; | 
 |         } | 
 |         OSSL_STORE_INFO_set0_NAME_description(*v, newdesc); | 
 |     } | 
 |     return 1; | 
 | } | 
 |  | 
 | /* | 
 |  * For the rest of the object types, the provider code may not know what | 
 |  * type of data it gave us, so we may need to figure that out on our own. | 
 |  * Therefore, we do check for OSSL_OBJECT_UNKNOWN everywhere below, and | 
 |  * only return 0 on error if the object type is known. | 
 |  */ | 
 |  | 
 | static EVP_PKEY *try_key_ref(struct extracted_param_data_st *data, | 
 |                              OSSL_STORE_CTX *ctx, | 
 |                              const OSSL_PROVIDER *provider, | 
 |                              OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     EVP_PKEY *pk = NULL; | 
 |     EVP_KEYMGMT *keymgmt = NULL; | 
 |     void *keydata = NULL; | 
 |  | 
 |     /* If we have an object reference, we must have a data type */ | 
 |     if (data->data_type == NULL) | 
 |         return 0; | 
 |  | 
 |     keymgmt = EVP_KEYMGMT_fetch(libctx, data->data_type, propq); | 
 |     if (keymgmt != NULL) { | 
 |         /* | 
 |          * There are two possible cases | 
 |          * | 
 |          * 1.  The keymgmt is from the same provider as the loader, | 
 |          *     so we can use evp_keymgmt_load() | 
 |          * 2.  The keymgmt is from another provider, then we must | 
 |          *     do the export/import dance. | 
 |          */ | 
 |         if (EVP_KEYMGMT_get0_provider(keymgmt) == provider) { | 
 |             keydata = evp_keymgmt_load(keymgmt, data->ref, data->ref_size); | 
 |         } else { | 
 |             struct evp_keymgmt_util_try_import_data_st import_data; | 
 |             OSSL_FUNC_store_export_object_fn *export_object = | 
 |                 ctx->fetched_loader->p_export_object; | 
 |  | 
 |             import_data.keymgmt = keymgmt; | 
 |             import_data.keydata = NULL; | 
 |             import_data.selection = OSSL_KEYMGMT_SELECT_ALL; | 
 |  | 
 |             if (export_object != NULL) { | 
 |                 /* | 
 |                  * No need to check for errors here, the value of | 
 |                  * |import_data.keydata| is as much an indicator. | 
 |                  */ | 
 |                 (void)export_object(ctx->loader_ctx, | 
 |                                     data->ref, data->ref_size, | 
 |                                     &evp_keymgmt_util_try_import, | 
 |                                     &import_data); | 
 |             } | 
 |  | 
 |             keydata = import_data.keydata; | 
 |         } | 
 |     } | 
 |     if (keydata != NULL) | 
 |         pk = evp_keymgmt_util_make_pkey(keymgmt, keydata); | 
 |     EVP_KEYMGMT_free(keymgmt); | 
 |  | 
 |     return pk; | 
 | } | 
 |  | 
 | static EVP_PKEY *try_key_value(struct extracted_param_data_st *data, | 
 |                                OSSL_STORE_CTX *ctx, | 
 |                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg, | 
 |                                OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     EVP_PKEY *pk = NULL; | 
 |     OSSL_DECODER_CTX *decoderctx = NULL; | 
 |     const unsigned char *pdata = data->octet_data; | 
 |     size_t pdatalen = data->octet_data_size; | 
 |     int selection = 0; | 
 |  | 
 |     switch (ctx->expected_type) { | 
 |     case 0: | 
 |         break; | 
 |     case OSSL_STORE_INFO_PARAMS: | 
 |         selection = OSSL_KEYMGMT_SELECT_ALL_PARAMETERS; | 
 |         break; | 
 |     case OSSL_STORE_INFO_PUBKEY: | 
 |         selection = | 
 |             OSSL_KEYMGMT_SELECT_PUBLIC_KEY | 
 |             | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS; | 
 |         break; | 
 |     case OSSL_STORE_INFO_PKEY: | 
 |         selection = OSSL_KEYMGMT_SELECT_ALL; | 
 |         break; | 
 |     default: | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     decoderctx = | 
 |         OSSL_DECODER_CTX_new_for_pkey(&pk, NULL, data->data_structure, | 
 |                                       data->data_type, selection, libctx, | 
 |                                       propq); | 
 |     (void)OSSL_DECODER_CTX_set_passphrase_cb(decoderctx, cb, cbarg); | 
 |  | 
 |     /* No error if this couldn't be decoded */ | 
 |     (void)OSSL_DECODER_from_data(decoderctx, &pdata, &pdatalen); | 
 |  | 
 |     OSSL_DECODER_CTX_free(decoderctx); | 
 |  | 
 |     return pk; | 
 | } | 
 |  | 
 | typedef OSSL_STORE_INFO *store_info_new_fn(EVP_PKEY *); | 
 |  | 
 | static EVP_PKEY *try_key_value_legacy(struct extracted_param_data_st *data, | 
 |                                       store_info_new_fn **store_info_new, | 
 |                                       OSSL_STORE_CTX *ctx, | 
 |                                       OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg, | 
 |                                       OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     EVP_PKEY *pk = NULL; | 
 |     const unsigned char *der = data->octet_data, *derp; | 
 |     long der_len = (long)data->octet_data_size; | 
 |  | 
 |     /* Try PUBKEY first, that's a real easy target */ | 
 |     if (ctx->expected_type == 0 | 
 |         || ctx->expected_type == OSSL_STORE_INFO_PUBKEY) { | 
 |         derp = der; | 
 |         pk = d2i_PUBKEY_ex(NULL, &derp, der_len, libctx, propq); | 
 |  | 
 |         if (pk != NULL) | 
 |             *store_info_new = OSSL_STORE_INFO_new_PUBKEY; | 
 |     } | 
 |  | 
 |     /* Try private keys next */ | 
 |     if (pk == NULL | 
 |         && (ctx->expected_type == 0 | 
 |             || ctx->expected_type == OSSL_STORE_INFO_PKEY)) { | 
 |         unsigned char *new_der = NULL; | 
 |         X509_SIG *p8 = NULL; | 
 |         PKCS8_PRIV_KEY_INFO *p8info = NULL; | 
 |  | 
 |         /* See if it's an encrypted PKCS#8 and decrypt it. */ | 
 |         derp = der; | 
 |         p8 = d2i_X509_SIG(NULL, &derp, der_len); | 
 |  | 
 |         if (p8 != NULL) { | 
 |             char pbuf[PEM_BUFSIZE]; | 
 |             size_t plen = 0; | 
 |  | 
 |             if (!cb(pbuf, sizeof(pbuf), &plen, NULL, cbarg)) { | 
 |                 ERR_raise(ERR_LIB_OSSL_STORE, OSSL_STORE_R_BAD_PASSWORD_READ); | 
 |             } else { | 
 |                 const X509_ALGOR *alg = NULL; | 
 |                 const ASN1_OCTET_STRING *oct = NULL; | 
 |                 int len = 0; | 
 |  | 
 |                 X509_SIG_get0(p8, &alg, &oct); | 
 |  | 
 |                 /* | 
 |                  * No need to check the returned value, |new_der| | 
 |                  * will be NULL on error anyway. | 
 |                  */ | 
 |                 PKCS12_pbe_crypt(alg, pbuf, plen, | 
 |                                  oct->data, oct->length, | 
 |                                  &new_der, &len, 0); | 
 |                 der_len = len; | 
 |                 der = new_der; | 
 |             } | 
 |             X509_SIG_free(p8); | 
 |         } | 
 |  | 
 |         /* | 
 |          * If the encrypted PKCS#8 couldn't be decrypted, | 
 |          * |der| is NULL | 
 |          */ | 
 |         if (der != NULL) { | 
 |             /* Try to unpack an unencrypted PKCS#8, that's easy */ | 
 |             derp = der; | 
 |             p8info = d2i_PKCS8_PRIV_KEY_INFO(NULL, &derp, der_len); | 
 |  | 
 |             if (p8info != NULL) { | 
 |                 pk = EVP_PKCS82PKEY_ex(p8info, libctx, propq); | 
 |                 PKCS8_PRIV_KEY_INFO_free(p8info); | 
 |             } | 
 |         } | 
 |  | 
 |         if (pk != NULL) | 
 |             *store_info_new = OSSL_STORE_INFO_new_PKEY; | 
 |  | 
 |         OPENSSL_free(new_der); | 
 |     } | 
 |  | 
 |     return pk; | 
 | } | 
 |  | 
 | static int try_key(struct extracted_param_data_st *data, OSSL_STORE_INFO **v, | 
 |                    OSSL_STORE_CTX *ctx, const OSSL_PROVIDER *provider, | 
 |                    OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     store_info_new_fn *store_info_new = NULL; | 
 |  | 
 |     if (data->object_type == OSSL_OBJECT_UNKNOWN | 
 |         || data->object_type == OSSL_OBJECT_PKEY) { | 
 |         EVP_PKEY *pk = NULL; | 
 |  | 
 |         /* Prefer key by reference than key by value */ | 
 |         if (data->object_type == OSSL_OBJECT_PKEY && data->ref != NULL) { | 
 |             pk = try_key_ref(data, ctx, provider, libctx, propq); | 
 |  | 
 |             /* | 
 |              * If for some reason we couldn't get a key, it's an error. | 
 |              * It indicates that while decoders could make a key reference, | 
 |              * the keymgmt somehow couldn't handle it, or doesn't have a | 
 |              * OSSL_FUNC_keymgmt_load function. | 
 |              */ | 
 |             if (pk == NULL) | 
 |                 return 0; | 
 |         } else if (data->octet_data != NULL) { | 
 |             OSSL_PASSPHRASE_CALLBACK *cb = ossl_pw_passphrase_callback_dec; | 
 |             void *cbarg = &ctx->pwdata; | 
 |  | 
 |             pk = try_key_value(data, ctx, cb, cbarg, libctx, propq); | 
 |  | 
 |             /* | 
 |              * Desperate last maneuver, in case the decoders don't support | 
 |              * the data we have, then we try on our own to at least get an | 
 |              * engine provided legacy key. | 
 |              * This is the same as der2key_decode() does, but in a limited | 
 |              * way and within the walls of libcrypto. | 
 |              */ | 
 |             if (pk == NULL) | 
 |                 pk = try_key_value_legacy(data, &store_info_new, ctx, | 
 |                                           cb, cbarg, libctx, propq); | 
 |         } | 
 |  | 
 |         if (pk != NULL) { | 
 |             data->object_type = OSSL_OBJECT_PKEY; | 
 |  | 
 |             if (store_info_new == NULL) { | 
 |                 /* | 
 |                  * We determined the object type for OSSL_STORE_INFO, which | 
 |                  * makes an explicit difference between an EVP_PKEY with just | 
 |                  * (domain) parameters and an EVP_PKEY with actual key | 
 |                  * material. | 
 |                  * The logic is that an EVP_PKEY with actual key material | 
 |                  * always has the public half. | 
 |                  */ | 
 |                 if (evp_keymgmt_util_has(pk, OSSL_KEYMGMT_SELECT_PRIVATE_KEY)) | 
 |                     store_info_new = OSSL_STORE_INFO_new_PKEY; | 
 |                 else if (evp_keymgmt_util_has(pk, | 
 |                                               OSSL_KEYMGMT_SELECT_PUBLIC_KEY)) | 
 |                     store_info_new = OSSL_STORE_INFO_new_PUBKEY; | 
 |                 else | 
 |                     store_info_new = OSSL_STORE_INFO_new_PARAMS; | 
 |             } | 
 |             *v = store_info_new(pk); | 
 |         } | 
 |  | 
 |         if (*v == NULL) | 
 |             EVP_PKEY_free(pk); | 
 |     } | 
 |  | 
 |     return 1; | 
 | } | 
 |  | 
 | static int try_cert(struct extracted_param_data_st *data, OSSL_STORE_INFO **v, | 
 |                     OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     if (data->object_type == OSSL_OBJECT_UNKNOWN | 
 |         || data->object_type == OSSL_OBJECT_CERT) { | 
 |         /* | 
 |          * In most cases, we can try to interpret the serialized | 
 |          * data as a trusted cert (X509 + X509_AUX) and fall back | 
 |          * to reading it as a normal cert (just X509), but if | 
 |          * |data_type| (the PEM name) specifically declares it as a | 
 |          * trusted cert, then no fallback should be engaged. | 
 |          * |ignore_trusted| tells if the fallback can be used (1) | 
 |          * or not (0). | 
 |          */ | 
 |         int ignore_trusted = 1; | 
 |         X509 *cert = X509_new_ex(libctx, propq); | 
 |  | 
 |         if (cert == NULL) | 
 |             return 0; | 
 |  | 
 |         /* If we have a data type, it should be a PEM name */ | 
 |         if (data->data_type != NULL | 
 |             && (strcasecmp(data->data_type, PEM_STRING_X509_TRUSTED) == 0)) | 
 |             ignore_trusted = 0; | 
 |  | 
 |         if (d2i_X509_AUX(&cert, (const unsigned char **)&data->octet_data, | 
 |                          data->octet_data_size) == NULL | 
 |             && (!ignore_trusted | 
 |                 || d2i_X509(&cert, (const unsigned char **)&data->octet_data, | 
 |                             data->octet_data_size) == NULL)) { | 
 |             X509_free(cert); | 
 |             cert = NULL; | 
 |         } | 
 |  | 
 |         if (cert != NULL) { | 
 |             /* We determined the object type */ | 
 |             data->object_type = OSSL_OBJECT_CERT; | 
 |             *v = OSSL_STORE_INFO_new_CERT(cert); | 
 |             if (*v == NULL) | 
 |                 X509_free(cert); | 
 |         } | 
 |     } | 
 |  | 
 |     return 1; | 
 | } | 
 |  | 
 | static int try_crl(struct extracted_param_data_st *data, OSSL_STORE_INFO **v, | 
 |                    OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     if (data->object_type == OSSL_OBJECT_UNKNOWN | 
 |         || data->object_type == OSSL_OBJECT_CRL) { | 
 |         X509_CRL *crl; | 
 |  | 
 |         crl = d2i_X509_CRL(NULL, (const unsigned char **)&data->octet_data, | 
 |                            data->octet_data_size); | 
 |  | 
 |         if (crl != NULL) | 
 |             /* We determined the object type */ | 
 |             data->object_type = OSSL_OBJECT_CRL; | 
 |  | 
 |         if (crl != NULL && !ossl_x509_crl_set0_libctx(crl, libctx, propq)) { | 
 |             X509_CRL_free(crl); | 
 |             crl = NULL; | 
 |         } | 
 |  | 
 |         if (crl != NULL) | 
 |             *v = OSSL_STORE_INFO_new_CRL(crl); | 
 |         if (*v == NULL) | 
 |             X509_CRL_free(crl); | 
 |     } | 
 |  | 
 |     return 1; | 
 | } | 
 |  | 
 | static int try_pkcs12(struct extracted_param_data_st *data, OSSL_STORE_INFO **v, | 
 |                       OSSL_STORE_CTX *ctx, | 
 |                       OSSL_LIB_CTX *libctx, const char *propq) | 
 | { | 
 |     int ok = 1; | 
 |  | 
 |     /* There is no specific object type for PKCS12 */ | 
 |     if (data->object_type == OSSL_OBJECT_UNKNOWN) { | 
 |         /* Initial parsing */ | 
 |         PKCS12 *p12; | 
 |  | 
 |         p12 = d2i_PKCS12(NULL, (const unsigned char **)&data->octet_data, | 
 |                          data->octet_data_size); | 
 |  | 
 |         if (p12 != NULL) { | 
 |             char *pass = NULL; | 
 |             char tpass[PEM_BUFSIZE + 1]; | 
 |             size_t tpass_len; | 
 |             EVP_PKEY *pkey = NULL; | 
 |             X509 *cert = NULL; | 
 |             STACK_OF(X509) *chain = NULL; | 
 |  | 
 |             data->object_type = OSSL_OBJECT_PKCS12; | 
 |  | 
 |             ok = 0;              /* Assume decryption or parse error */ | 
 |  | 
 |             if (PKCS12_verify_mac(p12, "", 0) | 
 |                 || PKCS12_verify_mac(p12, NULL, 0)) { | 
 |                 pass = ""; | 
 |             } else { | 
 |                 static char prompt_info[] = "PKCS12 import pass phrase"; | 
 |                 OSSL_PARAM pw_params[] = { | 
 |                     OSSL_PARAM_utf8_string(OSSL_PASSPHRASE_PARAM_INFO, | 
 |                                            prompt_info, | 
 |                                            sizeof(prompt_info) - 1), | 
 |                     OSSL_PARAM_END | 
 |                 }; | 
 |  | 
 |                 if (!ossl_pw_get_passphrase(tpass, sizeof(tpass) - 1, | 
 |                                             &tpass_len, | 
 |                                             pw_params, 0, &ctx->pwdata)) { | 
 |                     ERR_raise(ERR_LIB_OSSL_STORE, | 
 |                               OSSL_STORE_R_PASSPHRASE_CALLBACK_ERROR); | 
 |                     goto p12_end; | 
 |                 } | 
 |                 pass = tpass; | 
 |                 /* | 
 |                  * ossl_pw_get_passphrase() does not NUL terminate but | 
 |                  * we must do it for PKCS12_parse() | 
 |                  */ | 
 |                 pass[tpass_len] = '\0'; | 
 |                 if (!PKCS12_verify_mac(p12, pass, tpass_len)) { | 
 |                     ERR_raise_data(ERR_LIB_OSSL_STORE, | 
 |                                    OSSL_STORE_R_ERROR_VERIFYING_PKCS12_MAC, | 
 |                                    tpass_len == 0 ? "empty password" : | 
 |                                    "maybe wrong password"); | 
 |                     goto p12_end; | 
 |                 } | 
 |             } | 
 |  | 
 |             if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) { | 
 |                 STACK_OF(OSSL_STORE_INFO) *infos = NULL; | 
 |                 OSSL_STORE_INFO *osi_pkey = NULL; | 
 |                 OSSL_STORE_INFO *osi_cert = NULL; | 
 |                 OSSL_STORE_INFO *osi_ca = NULL; | 
 |  | 
 |                 ok = 1;          /* Parsing went through correctly! */ | 
 |  | 
 |                 if ((infos = sk_OSSL_STORE_INFO_new_null()) != NULL) { | 
 |                     if (pkey != NULL) { | 
 |                         if ((osi_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL | 
 |                             /* clearing pkey here avoids case distinctions */ | 
 |                             && (pkey = NULL) == NULL | 
 |                             && sk_OSSL_STORE_INFO_push(infos, osi_pkey) != 0) | 
 |                             osi_pkey = NULL; | 
 |                         else | 
 |                             ok = 0; | 
 |                     } | 
 |                     if (ok && cert != NULL) { | 
 |                         if ((osi_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL | 
 |                             /* clearing cert here avoids case distinctions */ | 
 |                             && (cert = NULL) == NULL | 
 |                             && sk_OSSL_STORE_INFO_push(infos, osi_cert) != 0) | 
 |                             osi_cert = NULL; | 
 |                         else | 
 |                             ok = 0; | 
 |                     } | 
 |                     while (ok && sk_X509_num(chain) > 0) { | 
 |                         X509 *ca = sk_X509_value(chain, 0); | 
 |  | 
 |                         if ((osi_ca = OSSL_STORE_INFO_new_CERT(ca)) != NULL | 
 |                             && sk_X509_shift(chain) != NULL | 
 |                             && sk_OSSL_STORE_INFO_push(infos, osi_ca) != 0) | 
 |                             osi_ca = NULL; | 
 |                         else | 
 |                             ok = 0; | 
 |                     } | 
 |                 } | 
 |                 EVP_PKEY_free(pkey); | 
 |                 X509_free(cert); | 
 |                 OSSL_STACK_OF_X509_free(chain); | 
 |                 OSSL_STORE_INFO_free(osi_pkey); | 
 |                 OSSL_STORE_INFO_free(osi_cert); | 
 |                 OSSL_STORE_INFO_free(osi_ca); | 
 |                 if (!ok) { | 
 |                     sk_OSSL_STORE_INFO_pop_free(infos, OSSL_STORE_INFO_free); | 
 |                     infos = NULL; | 
 |                 } | 
 |                 ctx->cached_info = infos; | 
 |             } | 
 |          p12_end: | 
 |             OPENSSL_cleanse(tpass, sizeof(tpass)); | 
 |             PKCS12_free(p12); | 
 |         } | 
 |         *v = sk_OSSL_STORE_INFO_shift(ctx->cached_info); | 
 |     } | 
 |  | 
 |     return ok; | 
 | } |