crypto/store/store_result.c

   1 /*
   2  * Copyright 2020 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 *utf8_data;
  66     const void *octet_data;
  67     size_t octet_data_size;
  68     const void *ref;
  69     size_t ref_size;
  70     const char *desc;
  71 };
  72
  73 static int try_name(struct extracted_param_data_st *, OSSL_STORE_INFO **);
  74 static int try_key(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  75                    OSSL_STORE_CTX *, const OSSL_PROVIDER *,
  76                    OPENSSL_CTX *, const char *);
  77 static int try_cert(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  78                     OPENSSL_CTX *, const char *);
  79 static int try_crl(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  80                    OPENSSL_CTX *, const char *);
  81 static int try_pkcs12(struct extracted_param_data_st *, OSSL_STORE_INFO **,
  82                       OSSL_STORE_CTX *, OPENSSL_CTX *, const char *);
  83
  84 #define SET_ERR_MARK() ERR_set_mark()
  85 #define CLEAR_ERR_MARK()                                                \
  86     do {                                                                \
  87         int err = ERR_peek_last_error();                                \
  88                                                                         \
  89         if (ERR_GET_LIB(err) == ERR_LIB_ASN1                            \
  90             && ERR_GET_REASON(err) == ERR_R_NESTED_ASN1_ERROR)          \
  91             ERR_pop_to_mark();                                          \
  92         else                                                            \
  93             ERR_clear_last_mark();                                      \
  94     } while(0)
  95 #define RESET_ERR_MARK()                                                \
  96     do {                                                                \
  97         CLEAR_ERR_MARK();                                               \
  98         SET_ERR_MARK();                                                 \
  99     } while(0)
 100
 101 int ossl_store_handle_load_result(const OSSL_PARAM params[], void *arg)
 102 {
 103     struct ossl_load_result_data_st *cbdata = arg;
 104     OSSL_STORE_INFO **v = &cbdata->v;
 105     OSSL_STORE_CTX *ctx = cbdata->ctx;
 106     const OSSL_PROVIDER *provider =
 107         OSSL_STORE_LOADER_provider(ctx->fetched_loader);
 108     OPENSSL_CTX *libctx = ossl_provider_library_context(provider);
 109     const char *propq = ctx->properties;
 110     const OSSL_PARAM *p;
 111     struct extracted_param_data_st helper_data;
 112
 113     memset(&helper_data, 0, sizeof(helper_data));
 114     helper_data.object_type = OSSL_OBJECT_UNKNOWN;
 115
 116     if ((p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_TYPE)) != NULL
 117         && !OSSL_PARAM_get_int(p, &helper_data.object_type))
 118         return 0;
 119     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_TYPE);
 120     if (p != NULL
 121         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_type))
 122         return 0;
 123     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA);
 124     if (p != NULL
 125         && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.octet_data,
 126                                             &helper_data.octet_data_size)
 127         && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.utf8_data))
 128         return 0;
 129     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_REFERENCE);
 130     if (p != NULL && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.ref,
 131                                                       &helper_data.ref_size))
 132         return 0;
 133     p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DESC);
 134     if (p != NULL && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.desc))
 135         return 0;
 136
 137     /*
 138      * The helper functions return 0 on actual errors, otherwise 1, even if
 139      * they didn't fill out |*v|.
 140      */
 141     SET_ERR_MARK();
 142     if (!try_name(&helper_data, v))
 143         goto err;
 144     RESET_ERR_MARK();
 145     if (!try_key(&helper_data, v, ctx, provider, libctx, propq))
 146         goto err;
 147     RESET_ERR_MARK();
 148     if (!try_cert(&helper_data, v, libctx, propq))
 149         goto err;
 150     RESET_ERR_MARK();
 151     if (!try_crl(&helper_data, v, libctx, propq))
 152         goto err;
 153     RESET_ERR_MARK();
 154     if (!try_pkcs12(&helper_data, v, ctx, libctx, propq))
 155         goto err;
 156     CLEAR_ERR_MARK();
 157
 158     return (*v != NULL);
 159  err:
 160     return 0;
 161 }
 162
 163 static int try_name(struct extracted_param_data_st *data, OSSL_STORE_INFO **v)
 164 {
 165     if (data->object_type == OSSL_OBJECT_NAME) {
 166         char *newname = NULL, *newdesc = NULL;
 167
 168         if (data->utf8_data == NULL)
 169             return 0;
 170         if ((newname = OPENSSL_strdup(data->utf8_data)) == NULL
 171             || (data->desc != NULL
 172                 && (newdesc = OPENSSL_strdup(data->desc)) == NULL)
 173             || (*v = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
 174             OPENSSL_free(newname);
 175             OPENSSL_free(newdesc);
 176             return 0;
 177         }
 178         OSSL_STORE_INFO_set0_NAME_description(*v, newdesc);
 179     }
 180     return 1;
 181 }
 182
 183 /*
 184  * For the rest of the object types, the provider code may not know what
 185  * type of data it gave us, so we may need to figure that out on our own.
 186  * Therefore, we do check for OSSL_OBJECT_UNKNOWN everywhere below, and
 187  * only return 0 on error if the object type is known.
 188  */
 189
 190 static EVP_PKEY *try_key_ref(struct extracted_param_data_st *data,
 191                              OSSL_STORE_CTX *ctx,
 192                              const OSSL_PROVIDER *provider,
 193                              OPENSSL_CTX *libctx, const char *propq)
 194 {
 195     EVP_PKEY *pk = NULL;
 196     EVP_KEYMGMT *keymgmt = NULL;
 197     void *keydata = NULL;
 198
 199     /* If we have an object reference, we must have a data type */
 200     if (data->data_type == NULL)
 201         return 0;
 202
 203     keymgmt = EVP_KEYMGMT_fetch(libctx, data->data_type, propq);
 204     if (keymgmt != NULL) {
 205         /*
 206          * There are two possible cases
 207          *
 208          * 1.  The keymgmt is from the same provider as the loader,
 209          *     so we can use evp_keymgmt_load()
 210          * 2.  The keymgmt is from another provider, then we must
 211          *     do the export/import dance.
 212          */
 213         if (EVP_KEYMGMT_provider(keymgmt) == provider) {
 214             keydata = evp_keymgmt_load(keymgmt, data->ref, data->ref_size);
 215         } else {
 216             struct evp_keymgmt_util_try_import_data_st import_data;
 217             OSSL_FUNC_store_export_object_fn *export_object =
 218                 ctx->fetched_loader->p_export_object;
 219
 220             import_data.keymgmt = keymgmt;
 221             import_data.keydata = NULL;
 222             import_data.selection = OSSL_KEYMGMT_SELECT_ALL;
 223
 224             if (export_object != NULL) {
 225                 /*
 226                  * No need to check for errors here, the value of
 227                  * |import_data.keydata| is as much an indicator.
 228                  */
 229                 (void)export_object(ctx->loader_ctx,
 230                                     data->ref, data->ref_size,
 231                                     &evp_keymgmt_util_try_import,
 232                                     &import_data);
 233             }
 234
 235             keydata = import_data.keydata;
 236         }
 237     }
 238     if (keydata != NULL)
 239         pk = evp_keymgmt_util_make_pkey(keymgmt, keydata);
 240     EVP_KEYMGMT_free(keymgmt);
 241
 242     return pk;
 243 }
 244
 245 static EVP_PKEY *try_key_value(struct extracted_param_data_st *data,
 246                                OSSL_STORE_CTX *ctx,
 247                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
 248                                OPENSSL_CTX *libctx, const char *propq)
 249 {
 250     EVP_PKEY *pk = NULL;
 251     OSSL_DECODER_CTX *decoderctx = NULL;
 252     BIO *membio =
 253         BIO_new_mem_buf(data->octet_data, (int)data->octet_data_size);
 254
 255     if (membio == NULL)
 256         return 0;
 257
 258     decoderctx = OSSL_DECODER_CTX_new_by_EVP_PKEY(&pk, "DER", libctx, propq);
 259     (void)OSSL_DECODER_CTX_set_passphrase_cb(decoderctx, cb, cbarg);
 260
 261     /* No error if this couldn't be decoded */
 262     (void)OSSL_DECODER_from_bio(decoderctx, membio);
 263
 264     OSSL_DECODER_CTX_free(decoderctx);
 265     BIO_free(membio);
 266
 267     return pk;
 268 }
 269
 270 typedef OSSL_STORE_INFO *store_info_new_fn(EVP_PKEY *);
 271
 272 static EVP_PKEY *try_key_value_legacy(struct extracted_param_data_st *data,
 273                                       store_info_new_fn **store_info_new,
 274                                       OSSL_STORE_CTX *ctx,
 275                                       OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
 276                                       OPENSSL_CTX *libctx, const char *propq)
 277 {
 278     EVP_PKEY *pk = NULL;
 279     const unsigned char *der = data->octet_data, *derp;
 280     long der_len = (long)data->octet_data_size;
 281
 282     /* Try PUBKEY first, that's a real easy target */
 283     derp = der;
 284     pk = d2i_PUBKEY_ex(NULL, &derp, der_len, libctx, propq);
 285     if (pk != NULL)
 286         *store_info_new = OSSL_STORE_INFO_new_PUBKEY;
 287
 288     /* Try private keys next */
 289     if (pk == NULL) {
 290         unsigned char *new_der = NULL;
 291         X509_SIG *p8 = NULL;
 292         PKCS8_PRIV_KEY_INFO *p8info = NULL;
 293
 294         /* See if it's an encrypted PKCS#8 and decrypt it */
 295         derp = der;
 296         if ((p8 = d2i_X509_SIG(NULL, &derp, der_len)) != NULL) {
 297             char pbuf[PEM_BUFSIZE];
 298             size_t plen = 0;
 299
 300             if (!cb(pbuf, sizeof(pbuf), &plen, NULL, cbarg)) {
 301                 ERR_raise(ERR_LIB_OSSL_STORE,
 302                           OSSL_STORE_R_BAD_PASSWORD_READ);
 303             } else {
 304                 const X509_ALGOR *alg = NULL;
 305                 const ASN1_OCTET_STRING *oct = NULL;
 306                 int len = 0;
 307
 308                 X509_SIG_get0(p8, &alg, &oct);
 309
 310                 /*
 311                  * No need to check the returned value, |new_der|
 312                  * will be NULL on error anyway.
 313                  */
 314                 PKCS12_pbe_crypt(alg, pbuf, plen,
 315                                  oct->data, oct->length,
 316                                  &new_der, &len, 0);
 317                 der_len = len;
 318                 der = new_der;
 319             }
 320             X509_SIG_free(p8);
 321         }
 322
 323         /*
 324          * If the encrypted PKCS#8 couldn't be decrypted,
 325          * |der| is NULL
 326          */
 327         if (der != NULL) {
 328             /* Try to unpack an unencrypted PKCS#8, that's easy */
 329             derp = der;
 330             p8info = d2i_PKCS8_PRIV_KEY_INFO(NULL, &derp, der_len);
 331             if (p8info != NULL) {
 332                 pk = EVP_PKCS82PKEY_with_libctx(p8info, libctx, propq);
 333                 PKCS8_PRIV_KEY_INFO_free(p8info);
 334             }
 335
 336             /*
 337              * It wasn't PKCS#8, so we must try the hard way.
 338              * However, we can cheat a little bit, because we know
 339              * what's not yet fully supported in out decoders.
 340              * TODO(3.0) Eliminate these when we have decoder support.
 341              */
 342             if (pk == NULL) {
 343                 derp = der;
 344                 pk = d2i_PrivateKey_ex(EVP_PKEY_SM2, NULL,
 345                                        &derp, der_len,
 346                                        libctx, NULL);
 347             }
 348         }
 349
 350         if (pk != NULL)
 351             *store_info_new = OSSL_STORE_INFO_new_PKEY;
 352
 353         OPENSSL_free(new_der);
 354         der = data->octet_data;
 355         der_len = (long)data->octet_data_size;
 356     }
 357
 358     /*
 359      * Last, we try parameters.  We cheat the same way we do for
 360      * private keys above.
 361      * TODO(3.0) Eliminate these when we have decoder support.
 362      */
 363     if (pk == NULL) {
 364         derp = der;
 365         pk = d2i_KeyParams(EVP_PKEY_SM2, NULL, &derp, der_len);
 366         if (pk != NULL)
 367             *store_info_new = OSSL_STORE_INFO_new_PARAMS;
 368     }
 369
 370     return pk;
 371 }
 372
 373 static int try_key(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 374                    OSSL_STORE_CTX *ctx, const OSSL_PROVIDER *provider,
 375                    OPENSSL_CTX *libctx, const char *propq)
 376 {
 377     store_info_new_fn *store_info_new = NULL;
 378
 379     if (data->object_type == OSSL_OBJECT_UNKNOWN
 380         || data->object_type == OSSL_OBJECT_PKEY) {
 381         EVP_PKEY *pk = NULL;
 382
 383         /* Prefer key by reference than key by value */
 384         if (data->object_type == OSSL_OBJECT_PKEY && data->ref != NULL) {
 385             pk = try_key_ref(data, ctx, provider, libctx, propq);
 386
 387             /*
 388              * If for some reason we couldn't get a key, it's an error.
 389              * It indicates that while decoders could make a key reference,
 390              * the keymgmt somehow couldn't handle it, or doesn't have a
 391              * OSSL_FUNC_keymgmt_load function.
 392              */
 393             if (pk == NULL)
 394                 return 0;
 395         } else if (data->octet_data != NULL) {
 396             OSSL_PASSPHRASE_CALLBACK *cb = ossl_pw_passphrase_callback_dec;
 397             void *cbarg = &ctx->pwdata;
 398
 399             pk = try_key_value(data, ctx, cb, cbarg, libctx, propq);
 400
 401             /*
 402              * Desperate last maneuver, in case the decoders don't support
 403              * the data we have, then we try on our own to at least get a
 404              * legacy key.
 405              * This is the same as der2key_decode() does, but in a limited
 406              * way and within the walls of libcrypto.
 407              *
 408              * TODO Remove this when #legacy keys are gone
 409              */
 410             if (pk == NULL)
 411                 pk = try_key_value_legacy(data, &store_info_new, ctx,
 412                                           cb, cbarg, libctx, propq);
 413         }
 414
 415         if (pk != NULL) {
 416             data->object_type = OSSL_OBJECT_PKEY;
 417
 418             if (store_info_new == NULL) {
 419                 /*
 420                  * We determined the object type for OSSL_STORE_INFO, which
 421                  * makes an explicit difference between an EVP_PKEY with just
 422                  * (domain) parameters and an EVP_PKEY with actual key
 423                  * material.
 424                  * The logic is that an EVP_PKEY with actual key material
 425                  * always has the public half.
 426                  */
 427                 if (evp_keymgmt_util_has(pk, OSSL_KEYMGMT_SELECT_PRIVATE_KEY))
 428                     store_info_new = OSSL_STORE_INFO_new_PKEY;
 429                 else if (evp_keymgmt_util_has(pk,
 430                                               OSSL_KEYMGMT_SELECT_PUBLIC_KEY))
 431                     store_info_new = OSSL_STORE_INFO_new_PUBKEY;
 432                 else
 433                     store_info_new = OSSL_STORE_INFO_new_PARAMS;
 434             }
 435             *v = store_info_new(pk);
 436         }
 437
 438         if (*v == NULL)
 439             EVP_PKEY_free(pk);
 440     }
 441
 442     return 1;
 443 }
 444
 445 static int try_cert(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 446                     OPENSSL_CTX *libctx, const char *propq)
 447 {
 448     if (data->object_type == OSSL_OBJECT_UNKNOWN
 449         || data->object_type == OSSL_OBJECT_CERT) {
 450         X509 *cert;
 451
 452         /*
 453          * In most cases, we can try to interpret the serialized
 454          * data as a trusted cert (X509 + X509_AUX) and fall back
 455          * to reading it as a normal cert (just X509), but if
 456          * |data_type| (the PEM name) specifically declares it as a
 457          * trusted cert, then no fallback should be engaged.
 458          * |ignore_trusted| tells if the fallback can be used (1)
 459          * or not (0).
 460          */
 461         int ignore_trusted = 1;
 462
 463         /* If we have a data type, it should be a PEM name */
 464         if (data->data_type != NULL
 465             && (strcasecmp(data->data_type, PEM_STRING_X509_TRUSTED) == 0))
 466             ignore_trusted = 0;
 467
 468         cert = d2i_X509_AUX(NULL, (const unsigned char **)&data->octet_data,
 469                             data->octet_data_size);
 470         if (cert == NULL && ignore_trusted)
 471             cert = d2i_X509(NULL, (const unsigned char **)&data->octet_data,
 472                             data->octet_data_size);
 473
 474         if (cert != NULL)
 475             /* We determined the object type */
 476             data->object_type = OSSL_OBJECT_CERT;
 477
 478         if (cert != NULL && !x509_set0_libctx(cert, libctx, propq)) {
 479             X509_free(cert);
 480             cert = NULL;
 481         }
 482
 483         if (cert != NULL)
 484             *v = OSSL_STORE_INFO_new_CERT(cert);
 485         if (*v == NULL)
 486             X509_free(cert);
 487     }
 488
 489     return 1;
 490 }
 491
 492 static int try_crl(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 493                    OPENSSL_CTX *libctx, const char *propq)
 494 {
 495     if (data->object_type == OSSL_OBJECT_UNKNOWN
 496         || data->object_type == OSSL_OBJECT_CRL) {
 497         X509_CRL *crl;
 498
 499         crl = d2i_X509_CRL(NULL, (const unsigned char **)&data->octet_data,
 500                            data->octet_data_size);
 501         if (crl != NULL)
 502             /* We determined the object type */
 503             data->object_type = OSSL_OBJECT_CRL;
 504
 505         if (crl != NULL && !x509_crl_set0_libctx(crl, libctx, propq)) {
 506             X509_CRL_free(crl);
 507             crl = NULL;
 508         }
 509
 510         if (crl != NULL)
 511             *v = OSSL_STORE_INFO_new_CRL(crl);
 512         if (*v == NULL)
 513             X509_CRL_free(crl);
 514     }
 515
 516     return 1;
 517 }
 518
 519 static int try_pkcs12(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
 520                       OSSL_STORE_CTX *ctx,
 521                       OPENSSL_CTX *libctx, const char *propq)
 522 {
 523     /* There is no specific object type for PKCS12 */
 524     if (data->object_type == OSSL_OBJECT_UNKNOWN) {
 525         /* Initial parsing */
 526         PKCS12 *p12;
 527
 528         if ((p12 = d2i_PKCS12(NULL, (const unsigned char **)&data->octet_data,
 529                               data->octet_data_size)) != NULL) {
 530             char *pass = NULL;
 531             char tpass[PEM_BUFSIZE];
 532             size_t tpass_len;
 533             EVP_PKEY *pkey = NULL;
 534             X509 *cert = NULL;
 535             STACK_OF(X509) *chain = NULL;
 536
 537             data->object_type = OSSL_OBJECT_PKCS12;
 538
 539             if (PKCS12_verify_mac(p12, "", 0)
 540                 || PKCS12_verify_mac(p12, NULL, 0)) {
 541                 pass = "";
 542             } else {
 543                 static char prompt_info[] = "PKCS12 import pass phrase";
 544                 OSSL_PARAM pw_params[] = {
 545                     OSSL_PARAM_utf8_string(OSSL_PASSPHRASE_PARAM_INFO,
 546                                            prompt_info,
 547                                            sizeof(prompt_info) - 1),
 548                     OSSL_PARAM_END
 549                 };
 550
 551                 if (!ossl_pw_get_passphrase(tpass, sizeof(tpass), &tpass_len,
 552                                             pw_params, 0, &ctx->pwdata)) {
 553                     ERR_raise(ERR_LIB_OSSL_STORE,
 554                               OSSL_STORE_R_PASSPHRASE_CALLBACK_ERROR);
 555                     goto p12_end;
 556                 }
 557                 pass = tpass;
 558                 if (!PKCS12_verify_mac(p12, pass, strlen(pass))) {
 559                     ERR_raise(ERR_LIB_OSSL_STORE,
 560                               OSSL_STORE_R_ERROR_VERIFYING_PKCS12_MAC);
 561                     goto p12_end;
 562                 }
 563             }
 564
 565             if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) {
 566                 STACK_OF(OSSL_STORE_INFO) *infos = NULL;
 567                 OSSL_STORE_INFO *osi_pkey = NULL;
 568                 OSSL_STORE_INFO *osi_cert = NULL;
 569                 OSSL_STORE_INFO *osi_ca = NULL;
 570                 int ok = 1;
 571
 572                 if ((infos = sk_OSSL_STORE_INFO_new_null()) != NULL) {
 573                     if (pkey != NULL) {
 574                         if ((osi_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL
 575                             /* clearing pkey here avoids case distinctions */
 576                             && (pkey = NULL) == NULL
 577                             && sk_OSSL_STORE_INFO_push(infos, osi_pkey) != 0)
 578                             osi_pkey = NULL;
 579                         else
 580                             ok = 0;
 581                     }
 582                     if (ok && cert != NULL) {
 583                         if ((osi_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL
 584                             /* clearing cert here avoids case distinctions */
 585                             && (cert = NULL) == NULL
 586                             && sk_OSSL_STORE_INFO_push(infos, osi_cert) != 0)
 587                             osi_cert = NULL;
 588                         else
 589                             ok = 0;
 590                     }
 591                     while (ok && sk_X509_num(chain) > 0) {
 592                         X509 *ca = sk_X509_value(chain, 0);
 593
 594                         if ((osi_ca = OSSL_STORE_INFO_new_CERT(ca)) != NULL
 595                             && sk_X509_shift(chain) != NULL
 596                             && sk_OSSL_STORE_INFO_push(infos, osi_ca) != 0)
 597                             osi_ca = NULL;
 598                         else
 599                             ok = 0;
 600                     }
 601                 }
 602                 EVP_PKEY_free(pkey);
 603                 X509_free(cert);
 604                 sk_X509_pop_free(chain, X509_free);
 605                 OSSL_STORE_INFO_free(osi_pkey);
 606                 OSSL_STORE_INFO_free(osi_cert);
 607                 OSSL_STORE_INFO_free(osi_ca);
 608                 if (!ok) {
 609                     sk_OSSL_STORE_INFO_pop_free(infos, OSSL_STORE_INFO_free);
 610                     infos = NULL;
 611                 }
 612                 ctx->cached_info = infos;
 613             }
 614         }
 615      p12_end:
 616         PKCS12_free(p12);
 617         *v = sk_OSSL_STORE_INFO_shift(ctx->cached_info);
 618     }
 619
 620     return 1;
 621 }