crypto/store/store_result.c

   1 /*
   2  * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   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
   8  */
   9
  10 #include "e_os.h"
  11 #include <string.h>
  12
  13 #include <openssl/core.h>
  14 #include <openssl/core_names.h>
  15 #include <openssl/core_object.h>
  16 #include <openssl/err.h>
  17 #include <openssl/pkcs12.h>
  18 #include <openssl/provider.h>
  19 #include <openssl/decoder.h>
  20 #include <openssl/store.h>
  21 #include "internal/provider.h"
  22 #include "internal/passphrase.h"
  23 #include "crypto/evp.h"
  24 #include "crypto/x509.h"
  25 #include "store_local.h"
  26
  27 #ifndef OSSL_OBJECT_PKCS12
  28 /*
  29  * The object abstraction doesn't know PKCS#12, but we want to indicate
  30  * it anyway, so we create our own.  Since the public macros use positive
  31  * numbers, negative ones should be fine.  They must never slip out from
  32  * this translation unit anyway.
  33  */
  34 # define OSSL_OBJECT_PKCS12 -1
  35 #endif
  36
  37 /*
  38  * ossl_store_handle_load_result() is initially written to be a companion
  39  * to our 'file:' scheme provider implementation, but has been made generic
  40  * to serve others as well.
  41  *
  42  * This result handler takes any object abstraction (see provider-object(7))
  43  * and does the best it can with it.  If the object is passed by value (not
  44  * by reference), the contents are currently expected to be DER encoded.
  45  * If an object type is specified, that will be respected; otherwise, this
  46  * handler will guess the contents, by trying the following in order:
  47  *
  48  * 1.  Decode it into an EVP_PKEY, using OSSL_DECODER.
  49  * 2.  Decode it into an X.509 certificate, using d2i_X509 / d2i_X509_AUX.
  50  * 3.  Decode it into an X.509 CRL, using d2i_X509_CRL.
  51  * 4.  Decode it into a PKCS#12 structure, using d2i_PKCS12 (*).
  52  *
  53  * For the 'file:' scheme implementation, this is division of labor.  Since
  54  * the libcrypto <-> provider interface currently doesn't support certain
  55  * structures as first class objects, they must be unpacked from DER here
  56  * rather than in the provider.  The current exception is asymmetric keys,
  57  * which can reside within the provider boundary, most of all thanks to
  58  * OSSL_FUNC_keymgmt_load(), which allows loading the key material by
  59  * reference.
  60  */
  61
  62 struct extracted_param_data_st {
  63     int object_type;
  64     const char *data_type;
  65     const char *data_structure;
  66     const char *utf8_data;
  67     const void *octet_data;
  68     size_t octet_data_size;
  69     const void *ref;
  70     size_t ref_size;
  71     const char *desc;
  72 };
  73
  74 static int try_name(struct extracted_param_data_st *, OSSL_STORE_INFO **);
  75 static int try_key(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  76                    OSSL_STORE_CTX *, const OSSL_PROVIDER *,
  77                    OSSL_LIB_CTX *, const char *);
  78 static int try_cert(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  79                     OSSL_LIB_CTX *, const char *);
  80 static int try_crl(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  81                    OSSL_LIB_CTX *, const char *);
  82 static int try_pkcs12(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  83                       OSSL_STORE_CTX *, OSSL_LIB_CTX *, const char *);
  84
  85 #define SET_ERR_MARK() ERR_set_mark()
  86 #define CLEAR_ERR_MARK()                                                \
  87     do {                                                                \
  88         int err = ERR_peek_last_error();                                \
  89                                                                         \
  90         if (ERR_GET_LIB(err) == ERR_LIB_ASN1                            \
  91             && (ERR_GET_REASON(err) == ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE   \
  92                 || ERR_GET_REASON(err) == ASN1_R_NO_MATCHING_CHOICE_TYPE \
  93                 || ERR_GET_REASON(err) == ERR_R_NESTED_ASN1_ERROR))     \
  94             ERR_pop_to_mark();                                          \
  95         else                                                            \
  96             ERR_clear_last_mark();                                      \
  97     } while(0)
  98 #define RESET_ERR_MARK()                                                \
  99     do {                                                                \
 100         CLEAR_ERR_MARK();                                               \
 101         SET_ERR_MARK();                                                 \
 102     } while(0)
 103
 104 int ossl_store_handle_load_result(const OSSL_PARAM params[], void *arg)
 105 {
 106     struct ossl_load_result_data_st *cbdata = arg;
 107     OSSL_STORE_INFO **v = &cbdata->v;
 108     OSSL_STORE_CTX *ctx = cbdata->ctx;
 109     const OSSL_PROVIDER *provider =
 110         OSSL_STORE_LOADER_provider(ctx->fetched_loader);
 111     OSSL_LIB_CTX *libctx = ossl_provider_libctx(provider);
 112     const char *propq = ctx->properties;
 113     const OSSL_PARAM *p;
 114     struct extracted_param_data_st helper_data;
 115
 116     memset(&helper_data, 0, sizeof(helper_data));
 117     helper_data.object_type = OSSL_OBJECT_UNKNOWN;
 118
 119     if ((p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_TYPE)) != NULL
 120         && !OSSL_PARAM_get_int(p, &helper_data.object_type))
 121         return 0;
 122     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_TYPE);
 123     if (p != NULL
 124         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_type))
 125         return 0;
 126     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA);
 127     if (p != NULL
 128         && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.octet_data,
 129                                             &helper_data.octet_data_size)
 130         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.utf8_data))
 131         return 0;
 132     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_STRUCTURE);
 133     if (p != NULL
 134         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_structure))
 135         return 0;
 136     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_REFERENCE);
 137     if (p != NULL && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.ref,
 138                                                       &helper_data.ref_size))
 139         return 0;
 140     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DESC);
 141     if (p != NULL && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.desc))
 142         return 0;
 143
 144     /*
 145      * The helper functions return 0 on actual errors, otherwise 1, even if
 146      * they didn't fill out |*v|.
 147      */
 148     SET_ERR_MARK();
 149     if (!try_name(&helper_data, v))
 150         goto err;
 151     RESET_ERR_MARK();
 152     if (!try_key(&helper_data, v, ctx, provider, libctx, propq))
 153         goto err;
 154     RESET_ERR_MARK();
 155     if (!try_cert(&helper_data, v, libctx, propq))
 156         goto err;
 157     RESET_ERR_MARK();
 158     if (!try_crl(&helper_data, v, libctx, propq))
 159         goto err;
 160     RESET_ERR_MARK();
 161     if (!try_pkcs12(&helper_data, v, ctx, libctx, propq))
 162         goto err;
 163     CLEAR_ERR_MARK();
 164
 165     return (*v != NULL);
 166  err:
 167     return 0;
 168 }
 169
 170 static int try_name(struct extracted_param_data_st *data, OSSL_STORE_INFO **v)
 171 {
 172     if (data->object_type == OSSL_OBJECT_NAME) {
 173         char *newname = NULL, *newdesc = NULL;
 174
 175         if (data->utf8_data == NULL)
 176             return 0;
 177         if ((newname = OPENSSL_strdup(data->utf8_data)) == NULL
 178             || (data->desc != NULL
 179                 && (newdesc = OPENSSL_strdup(data->desc)) == NULL)
 180             || (*v = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
 181             OPENSSL_free(newname);
 182             OPENSSL_free(newdesc);
 183             return 0;
 184         }
 185         OSSL_STORE_INFO_set0_NAME_description(*v, newdesc);
 186     }
 187     return 1;
 188 }
 189
 190 /*
 191  * For the rest of the object types, the provider code may not know what
 192  * type of data it gave us, so we may need to figure that out on our own.
 193  * Therefore, we do check for OSSL_OBJECT_UNKNOWN everywhere below, and
 194  * only return 0 on error if the object type is known.
 195  */
 196
 197 static EVP_PKEY *try_key_ref(struct extracted_param_data_st *data,
 198                              OSSL_STORE_CTX *ctx,
 199                              const OSSL_PROVIDER *provider,
 200                              OSSL_LIB_CTX *libctx, const char *propq)
 201 {
 202     EVP_PKEY *pk = NULL;
 203     EVP_KEYMGMT *keymgmt = NULL;
 204     void *keydata = NULL;
 205
 206     /* If we have an object reference, we must have a data type */
 207     if (data->data_type == NULL)
 208         return 0;
 209
 210     keymgmt = EVP_KEYMGMT_fetch(libctx, data->data_type, propq);
 211     if (keymgmt != NULL) {
 212         /*
 213          * There are two possible cases
 214          *
 215          * 1.  The keymgmt is from the same provider as the loader,
 216          *     so we can use evp_keymgmt_load()
 217          * 2.  The keymgmt is from another provider, then we must
 218          *     do the export/import dance.
 219          */
 220         if (EVP_KEYMGMT_provider(keymgmt) == provider) {
 221             keydata = evp_keymgmt_load(keymgmt, data->ref, data->ref_size);
 222         } else {
 223             struct evp_keymgmt_util_try_import_data_st import_data;
 224             OSSL_FUNC_store_export_object_fn *export_object =
 225                 ctx->fetched_loader->p_export_object;
 226
 227             import_data.keymgmt = keymgmt;
 228             import_data.keydata = NULL;
 229             import_data.selection = OSSL_KEYMGMT_SELECT_ALL;
 230
 231             if (export_object != NULL) {
 232                 /*
 233                  * No need to check for errors here, the value of
 234                  * |import_data.keydata| is as much an indicator.
 235                  */
 236                 (void)export_object(ctx->loader_ctx,
 237                                     data->ref, data->ref_size,
 238                                     &evp_keymgmt_util_try_import,
 239                                     &import_data);
 240             }
 241
 242             keydata = import_data.keydata;
 243         }
 244     }
 245     if (keydata != NULL)
 246         pk = evp_keymgmt_util_make_pkey(keymgmt, keydata);
 247     EVP_KEYMGMT_free(keymgmt);
 248
 249     return pk;
 250 }
 251
 252 static EVP_PKEY *try_key_value(struct extracted_param_data_st *data,
 253                                OSSL_STORE_CTX *ctx,
 254                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
 255                                OSSL_LIB_CTX *libctx, const char *propq)
 256 {
 257     EVP_PKEY *pk = NULL;
 258     OSSL_DECODER_CTX *decoderctx = NULL;
 259     const unsigned char *pdata = data->octet_data;
 260     size_t pdatalen = data->octet_data_size;
 261     int selection = 0;
 262
 263     switch (ctx->expected_type) {
 264     case 0:
 265         break;
 266     case OSSL_STORE_INFO_PARAMS:
 267         selection = OSSL_KEYMGMT_SELECT_ALL_PARAMETERS;
 268         break;
 269     case OSSL_STORE_INFO_PUBKEY:
 270         selection =
 271             OSSL_KEYMGMT_SELECT_PUBLIC_KEY
 272             | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS;
 273         break;
 274     case OSSL_STORE_INFO_PKEY:
 275         selection = OSSL_KEYMGMT_SELECT_ALL;
 276         break;
 277     default:
 278         return NULL;
 279     }
 280
 281     decoderctx =
 282         OSSL_DECODER_CTX_new_for_pkey(&pk, "DER", data->data_structure,
 283                                       data->data_type, selection, libctx,
 284                                       propq);
 285     (void)OSSL_DECODER_CTX_set_passphrase_cb(decoderctx, cb, cbarg);
 286
 287     /* No error if this couldn't be decoded */
 288     (void)OSSL_DECODER_from_data(decoderctx, &pdata, &pdatalen);
 289
 290     OSSL_DECODER_CTX_free(decoderctx);
 291
 292     return pk;
 293 }
 294
 295 typedef OSSL_STORE_INFO *store_info_new_fn(EVP_PKEY *);
 296
 297 static EVP_PKEY *try_key_value_legacy(struct extracted_param_data_st *data,
 298                                       store_info_new_fn **store_info_new,
 299                                       OSSL_STORE_CTX *ctx,
 300                                       OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
 301                                       OSSL_LIB_CTX *libctx, const char *propq)
 302 {
 303     EVP_PKEY *pk = NULL;
 304     const unsigned char *der = data->octet_data, *derp;
 305     long der_len = (long)data->octet_data_size;
 306
 307     SET_ERR_MARK();
 308     /* Try PUBKEY first, that's a real easy target */
 309     if (ctx->expected_type == 0
 310         || ctx->expected_type == OSSL_STORE_INFO_PUBKEY) {
 311         derp = der;
 312         pk = d2i_PUBKEY_ex(NULL, &derp, der_len, libctx, propq);
 313         if (pk != NULL)
 314             *store_info_new = OSSL_STORE_INFO_new_PUBKEY;
 315
 316         RESET_ERR_MARK();
 317     }
 318
 319     /* Try private keys next */
 320     if (pk == NULL
 321         && (ctx->expected_type == 0
 322             || ctx->expected_type == OSSL_STORE_INFO_PKEY)) {
 323         unsigned char *new_der = NULL;
 324         X509_SIG *p8 = NULL;
 325         PKCS8_PRIV_KEY_INFO *p8info = NULL;
 326
 327         /* See if it's an encrypted PKCS#8 and decrypt it */
 328         derp = der;
 329         if ((p8 = d2i_X509_SIG(NULL, &derp, der_len)) != NULL) {
 330             char pbuf[PEM_BUFSIZE];
 331             size_t plen = 0;
 332
 333             if (!cb(pbuf, sizeof(pbuf), &plen, NULL, cbarg)) {
 334                 ERR_raise(ERR_LIB_OSSL_STORE, OSSL_STORE_R_BAD_PASSWORD_READ);
 335             } else {
 336                 const X509_ALGOR *alg = NULL;
 337                 const ASN1_OCTET_STRING *oct = NULL;
 338                 int len = 0;
 339
 340                 X509_SIG_get0(p8, &alg, &oct);
 341
 342                 /*
 343                  * No need to check the returned value, |new_der|
 344                  * will be NULL on error anyway.
 345                  */
 346                 PKCS12_pbe_crypt(alg, pbuf, plen,
 347                                  oct->data, oct->length,
 348                                  &new_der, &len, 0);
 349                 der_len = len;
 350                 der = new_der;
 351             }
 352             X509_SIG_free(p8);
 353         }
 354         RESET_ERR_MARK();
 355
 356         /*
 357          * If the encrypted PKCS#8 couldn't be decrypted,
 358          * |der| is NULL
 359          */
 360         if (der != NULL) {
 361             /* Try to unpack an unencrypted PKCS#8, that's easy */
 362             derp = der;
 363             p8info = d2i_PKCS8_PRIV_KEY_INFO(NULL, &derp, der_len);
 364             RESET_ERR_MARK();
 365             if (p8info != NULL) {
 366                 pk = EVP_PKCS82PKEY_ex(p8info, libctx, propq);
 367                 PKCS8_PRIV_KEY_INFO_free(p8info);
 368             }
 369         }
 370
 371         if (pk != NULL)
 372             *store_info_new = OSSL_STORE_INFO_new_PKEY;
 373
 374         OPENSSL_free(new_der);
 375     }
 376     CLEAR_ERR_MARK();
 377
 378     return pk;
 379 }
 380
 381 static int try_key(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 382                    OSSL_STORE_CTX *ctx, const OSSL_PROVIDER *provider,
 383                    OSSL_LIB_CTX *libctx, const char *propq)
 384 {
 385     store_info_new_fn *store_info_new = NULL;
 386
 387     if (data->object_type == OSSL_OBJECT_UNKNOWN
 388         || data->object_type == OSSL_OBJECT_PKEY) {
 389         EVP_PKEY *pk = NULL;
 390
 391         /* Prefer key by reference than key by value */
 392         if (data->object_type == OSSL_OBJECT_PKEY && data->ref != NULL) {
 393             pk = try_key_ref(data, ctx, provider, libctx, propq);
 394
 395             /*
 396              * If for some reason we couldn't get a key, it's an error.
 397              * It indicates that while decoders could make a key reference,
 398              * the keymgmt somehow couldn't handle it, or doesn't have a
 399              * OSSL_FUNC_keymgmt_load function.
 400              */
 401             if (pk == NULL)
 402                 return 0;
 403         } else if (data->octet_data != NULL) {
 404             OSSL_PASSPHRASE_CALLBACK *cb = ossl_pw_passphrase_callback_dec;
 405             void *cbarg = &ctx->pwdata;
 406
 407             pk = try_key_value(data, ctx, cb, cbarg, libctx, propq);
 408
 409             /*
 410              * Desperate last maneuver, in case the decoders don't support
 411              * the data we have, then we try on our own to at least get a
 412              * legacy key.
 413              * This is the same as der2key_decode() does, but in a limited
 414              * way and within the walls of libcrypto.
 415              *
 416              * TODO Remove this when #legacy keys are gone
 417              */
 418             if (pk == NULL)
 419                 pk = try_key_value_legacy(data, &store_info_new, ctx,
 420                                           cb, cbarg, libctx, propq);
 421         }
 422
 423         if (pk != NULL) {
 424             data->object_type = OSSL_OBJECT_PKEY;
 425
 426             if (store_info_new == NULL) {
 427                 /*
 428                  * We determined the object type for OSSL_STORE_INFO, which
 429                  * makes an explicit difference between an EVP_PKEY with just
 430                  * (domain) parameters and an EVP_PKEY with actual key
 431                  * material.
 432                  * The logic is that an EVP_PKEY with actual key material
 433                  * always has the public half.
 434                  */
 435                 if (evp_keymgmt_util_has(pk, OSSL_KEYMGMT_SELECT_PRIVATE_KEY))
 436                     store_info_new = OSSL_STORE_INFO_new_PKEY;
 437                 else if (evp_keymgmt_util_has(pk,
 438                                               OSSL_KEYMGMT_SELECT_PUBLIC_KEY))
 439                     store_info_new = OSSL_STORE_INFO_new_PUBKEY;
 440                 else
 441                     store_info_new = OSSL_STORE_INFO_new_PARAMS;
 442             }
 443             *v = store_info_new(pk);
 444         }
 445
 446         if (*v == NULL)
 447             EVP_PKEY_free(pk);
 448     }
 449
 450     return 1;
 451 }
 452
 453 static int try_cert(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 454                     OSSL_LIB_CTX *libctx, const char *propq)
 455 {
 456     if (data->object_type == OSSL_OBJECT_UNKNOWN
 457         || data->object_type == OSSL_OBJECT_CERT) {
 458         X509 *cert;
 459
 460         /*
 461          * In most cases, we can try to interpret the serialized
 462          * data as a trusted cert (X509 + X509_AUX) and fall back
 463          * to reading it as a normal cert (just X509), but if
 464          * |data_type| (the PEM name) specifically declares it as a
 465          * trusted cert, then no fallback should be engaged.
 466          * |ignore_trusted| tells if the fallback can be used (1)
 467          * or not (0).
 468          */
 469         int ignore_trusted = 1;
 470
 471         /* If we have a data type, it should be a PEM name */
 472         if (data->data_type != NULL
 473             && (strcasecmp(data->data_type, PEM_STRING_X509_TRUSTED) == 0))
 474             ignore_trusted = 0;
 475
 476         cert = d2i_X509_AUX(NULL, (const unsigned char **)&data->octet_data,
 477                             data->octet_data_size);
 478         if (cert == NULL && ignore_trusted)
 479             cert = d2i_X509(NULL, (const unsigned char **)&data->octet_data,
 480                             data->octet_data_size);
 481
 482         if (cert != NULL)
 483             /* We determined the object type */
 484             data->object_type = OSSL_OBJECT_CERT;
 485
 486         if (cert != NULL && !x509_set0_libctx(cert, libctx, propq)) {
 487             X509_free(cert);
 488             cert = NULL;
 489         }
 490
 491         if (cert != NULL)
 492             *v = OSSL_STORE_INFO_new_CERT(cert);
 493         if (*v == NULL)
 494             X509_free(cert);
 495     }
 496
 497     return 1;
 498 }
 499
 500 static int try_crl(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 501                    OSSL_LIB_CTX *libctx, const char *propq)
 502 {
 503     if (data->object_type == OSSL_OBJECT_UNKNOWN
 504         || data->object_type == OSSL_OBJECT_CRL) {
 505         X509_CRL *crl;
 506
 507         crl = d2i_X509_CRL(NULL, (const unsigned char **)&data->octet_data,
 508                            data->octet_data_size);
 509         if (crl != NULL)
 510             /* We determined the object type */
 511             data->object_type = OSSL_OBJECT_CRL;
 512
 513         if (crl != NULL && !x509_crl_set0_libctx(crl, libctx, propq)) {
 514             X509_CRL_free(crl);
 515             crl = NULL;
 516         }
 517
 518         if (crl != NULL)
 519             *v = OSSL_STORE_INFO_new_CRL(crl);
 520         if (*v == NULL)
 521             X509_CRL_free(crl);
 522     }
 523
 524     return 1;
 525 }
 526
 527 static int try_pkcs12(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 528                       OSSL_STORE_CTX *ctx,
 529                       OSSL_LIB_CTX *libctx, const char *propq)
 530 {
 531     /* There is no specific object type for PKCS12 */
 532     if (data->object_type == OSSL_OBJECT_UNKNOWN) {
 533         /* Initial parsing */
 534         PKCS12 *p12;
 535
 536         if ((p12 = d2i_PKCS12(NULL, (const unsigned char **)&data->octet_data,
 537                               data->octet_data_size)) != NULL) {
 538             char *pass = NULL;
 539             char tpass[PEM_BUFSIZE];
 540             size_t tpass_len;
 541             EVP_PKEY *pkey = NULL;
 542             X509 *cert = NULL;
 543             STACK_OF(X509) *chain = NULL;
 544
 545             data->object_type = OSSL_OBJECT_PKCS12;
 546
 547             if (PKCS12_verify_mac(p12, "", 0)
 548                 || PKCS12_verify_mac(p12, NULL, 0)) {
 549                 pass = "";
 550             } else {
 551                 static char prompt_info[] = "PKCS12 import pass phrase";
 552                 OSSL_PARAM pw_params[] = {
 553                     OSSL_PARAM_utf8_string(OSSL_PASSPHRASE_PARAM_INFO,
 554                                            prompt_info,
 555                                            sizeof(prompt_info) - 1),
 556                     OSSL_PARAM_END
 557                 };
 558
 559                 if (!ossl_pw_get_passphrase(tpass, sizeof(tpass), &tpass_len,
 560                                             pw_params, 0, &ctx->pwdata)) {
 561                     ERR_raise(ERR_LIB_OSSL_STORE,
 562                               OSSL_STORE_R_PASSPHRASE_CALLBACK_ERROR);
 563                     goto p12_end;
 564                 }
 565                 pass = tpass;
 566                 if (!PKCS12_verify_mac(p12, pass, strlen(pass))) {
 567                     ERR_raise_data(ERR_LIB_OSSL_STORE,
 568                                    OSSL_STORE_R_ERROR_VERIFYING_PKCS12_MAC,
 569                                    strlen(pass) == 0 ? "empty password" :
 570                                    "maybe wrong password");
 571                     goto p12_end;
 572                 }
 573             }
 574
 575             if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) {
 576                 STACK_OF(OSSL_STORE_INFO) *infos = NULL;
 577                 OSSL_STORE_INFO *osi_pkey = NULL;
 578                 OSSL_STORE_INFO *osi_cert = NULL;
 579                 OSSL_STORE_INFO *osi_ca = NULL;
 580                 int ok = 1;
 581
 582                 if ((infos = sk_OSSL_STORE_INFO_new_null()) != NULL) {
 583                     if (pkey != NULL) {
 584                         if ((osi_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL
 585                             /* clearing pkey here avoids case distinctions */
 586                             && (pkey = NULL) == NULL
 587                             && sk_OSSL_STORE_INFO_push(infos, osi_pkey) != 0)
 588                             osi_pkey = NULL;
 589                         else
 590                             ok = 0;
 591                     }
 592                     if (ok && cert != NULL) {
 593                         if ((osi_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL
 594                             /* clearing cert here avoids case distinctions */
 595                             && (cert = NULL) == NULL
 596                             && sk_OSSL_STORE_INFO_push(infos, osi_cert) != 0)
 597                             osi_cert = NULL;
 598                         else
 599                             ok = 0;
 600                     }
 601                     while (ok && sk_X509_num(chain) > 0) {
 602                         X509 *ca = sk_X509_value(chain, 0);
 603
 604                         if ((osi_ca = OSSL_STORE_INFO_new_CERT(ca)) != NULL
 605                             && sk_X509_shift(chain) != NULL
 606                             && sk_OSSL_STORE_INFO_push(infos, osi_ca) != 0)
 607                             osi_ca = NULL;
 608                         else
 609                             ok = 0;
 610                     }
 611                 }
 612                 EVP_PKEY_free(pkey);
 613                 X509_free(cert);
 614                 sk_X509_pop_free(chain, X509_free);
 615                 OSSL_STORE_INFO_free(osi_pkey);
 616                 OSSL_STORE_INFO_free(osi_cert);
 617                 OSSL_STORE_INFO_free(osi_ca);
 618                 if (!ok) {
 619                     sk_OSSL_STORE_INFO_pop_free(infos, OSSL_STORE_INFO_free);
 620                     infos = NULL;
 621                 }
 622                 ctx->cached_info = infos;
 623             }
 624         }
 625      p12_end:
 626         PKCS12_free(p12);
 627         *v = sk_OSSL_STORE_INFO_shift(ctx->cached_info);
 628     }
 629
 630     return 1;
 631 }