1 /*
2 * Copyright 2020-2025 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 "internal/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/decoder.h"
24 #include "crypto/evp.h"
25 #include "crypto/x509.h"
26 #include "store_local.h"
27
28 #ifndef OSSL_OBJECT_PKCS12
29 /*
30 * The object abstraction doesn't know PKCS#12, but we want to indicate
31 * it anyway, so we create our own. Since the public macros use positive
32 * numbers, negative ones should be fine. They must never slip out from
33 * this translation unit anyway.
34 */
35 #define OSSL_OBJECT_PKCS12 -1
36 #endif
37
38 /*
39 * ossl_store_handle_load_result() is initially written to be a companion
40 * to our 'file:' scheme provider implementation, but has been made generic
41 * to serve others as well.
42 *
43 * This result handler takes any object abstraction (see provider-object(7))
44 * and does the best it can with it. If the object is passed by value (not
45 * by reference), the contents are currently expected to be DER encoded.
46 * If an object type is specified, that will be respected; otherwise, this
47 * handler will guess the contents, by trying the following in order:
48 *
49 * 1. Decode it into an EVP_PKEY, using OSSL_DECODER.
50 * 2. Decode it into an X.509 certificate, using d2i_X509 / d2i_X509_AUX.
51 * 3. Decode it into an X.509 CRL, using d2i_X509_CRL.
52 * 4. Decode it into a PKCS#12 structure, using d2i_PKCS12 (*).
53 *
54 * For the 'file:' scheme implementation, this is division of labor. Since
55 * the libcrypto <-> provider interface currently doesn't support certain
56 * structures as first class objects, they must be unpacked from DER here
57 * rather than in the provider. The current exception is asymmetric keys,
58 * which can reside within the provider boundary, most of all thanks to
59 * OSSL_FUNC_keymgmt_load(), which allows loading the key material by
60 * reference.
61 */
62
63 struct extracted_param_data_st {
64 int object_type;
65 const char *data_type;
66 const char *input_type;
67 const char *data_structure;
68 const char *utf8_data;
69 const void *octet_data;
70 size_t octet_data_size;
71 const void *ref;
72 size_t ref_size;
73 const char *desc;
74 };
75
76 static int try_name(struct extracted_param_data_st *, OSSL_STORE_INFO **);
77 static int try_key(struct extracted_param_data_st *, OSSL_STORE_INFO **,
78 OSSL_STORE_CTX *, const OSSL_PROVIDER *,
79 OSSL_LIB_CTX *, const char *);
80 static int try_cert(struct extracted_param_data_st *, OSSL_STORE_INFO **,
81 OSSL_LIB_CTX *, const char *);
82 static int try_crl(struct extracted_param_data_st *, OSSL_STORE_INFO **,
83 OSSL_LIB_CTX *, const char *);
84 static int try_pkcs12(struct extracted_param_data_st *, OSSL_STORE_INFO **,
85 OSSL_STORE_CTX *, OSSL_LIB_CTX *, const char *);
86
ossl_store_handle_load_result(const OSSL_PARAM params[],void * arg)87 int ossl_store_handle_load_result(const OSSL_PARAM params[], void *arg)
88 {
89 struct ossl_load_result_data_st *cbdata = arg;
90 OSSL_STORE_INFO **v = &cbdata->v;
91 OSSL_STORE_CTX *ctx = cbdata->ctx;
92 const OSSL_PROVIDER *provider = OSSL_STORE_LOADER_get0_provider(ctx->fetched_loader);
93 OSSL_LIB_CTX *libctx = ossl_provider_libctx(provider);
94 const char *propq = ctx->properties;
95 const OSSL_PARAM *p;
96 struct extracted_param_data_st helper_data;
97
98 memset(&helper_data, 0, sizeof(helper_data));
99 helper_data.object_type = OSSL_OBJECT_UNKNOWN;
100
101 if ((p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_TYPE)) != NULL
102 && !OSSL_PARAM_get_int(p, &helper_data.object_type))
103 return 0;
104 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_TYPE);
105 if (p != NULL
106 && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_type))
107 return 0;
108 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA);
109 if (p != NULL
110 && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.octet_data,
111 &helper_data.octet_data_size)
112 && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.utf8_data))
113 return 0;
114 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DATA_STRUCTURE);
115 if (p != NULL
116 && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.data_structure))
117 return 0;
118 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_INPUT_TYPE);
119 if (p != NULL
120 && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.input_type))
121 return 0;
122 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_REFERENCE);
123 if (p != NULL && !OSSL_PARAM_get_octet_string_ptr(p, &helper_data.ref, &helper_data.ref_size))
124 return 0;
125 p = OSSL_PARAM_locate_const(params, OSSL_OBJECT_PARAM_DESC);
126 if (p != NULL && !OSSL_PARAM_get_utf8_string_ptr(p, &helper_data.desc))
127 return 0;
128
129 /*
130 * The helper functions return 0 on actual errors, otherwise 1, even if
131 * they didn't fill out |*v|.
132 */
133 ERR_set_mark();
134 if (*v == NULL && !try_name(&helper_data, v))
135 goto err;
136 ERR_pop_to_mark();
137 ERR_set_mark();
138 if (*v == NULL && !try_key(&helper_data, v, ctx, provider, libctx, propq))
139 goto err;
140 ERR_pop_to_mark();
141 ERR_set_mark();
142 if (*v == NULL && !try_cert(&helper_data, v, libctx, propq))
143 goto err;
144 ERR_pop_to_mark();
145 ERR_set_mark();
146 if (*v == NULL && !try_crl(&helper_data, v, libctx, propq))
147 goto err;
148 ERR_pop_to_mark();
149 ERR_set_mark();
150 if (*v == NULL && !try_pkcs12(&helper_data, v, ctx, libctx, propq))
151 goto err;
152 ERR_pop_to_mark();
153
154 if (*v == NULL) {
155 const char *hint = "";
156
157 if (!OSSL_PROVIDER_available(libctx, "default"))
158 hint = ":maybe need to load the default provider?";
159 if (provider != NULL)
160 ERR_raise_data(ERR_LIB_OSSL_STORE, ERR_R_UNSUPPORTED, "provider=%s%s",
161 OSSL_PROVIDER_get0_name(provider), hint);
162 else if (hint[0] != '\0')
163 ERR_raise_data(ERR_LIB_OSSL_STORE, ERR_R_UNSUPPORTED, "%s", hint);
164 else
165 ERR_raise(ERR_LIB_OSSL_STORE, ERR_R_UNSUPPORTED);
166 }
167
168 return (*v != NULL);
169 err:
170 ERR_clear_last_mark();
171 return 0;
172 }
173
try_name(struct extracted_param_data_st * data,OSSL_STORE_INFO ** v)174 static int try_name(struct extracted_param_data_st *data, OSSL_STORE_INFO **v)
175 {
176 if (data->object_type == OSSL_OBJECT_NAME) {
177 char *newname = NULL, *newdesc = NULL;
178
179 if (data->utf8_data == NULL)
180 return 0;
181 if ((newname = OPENSSL_strdup(data->utf8_data)) == NULL
182 || (data->desc != NULL
183 && (newdesc = OPENSSL_strdup(data->desc)) == NULL)
184 || (*v = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
185 OPENSSL_free(newname);
186 OPENSSL_free(newdesc);
187 return 0;
188 }
189 OSSL_STORE_INFO_set0_NAME_description(*v, newdesc);
190 }
191 return 1;
192 }
193
194 /*
195 * For the rest of the object types, the provider code may not know what
196 * type of data it gave us, so we may need to figure that out on our own.
197 * Therefore, we do check for OSSL_OBJECT_UNKNOWN everywhere below, and
198 * only return 0 on error if the object type is known.
199 */
200
try_key_ref(struct extracted_param_data_st * data,OSSL_STORE_CTX * ctx,const OSSL_PROVIDER * provider,OSSL_LIB_CTX * libctx,const char * propq)201 static EVP_PKEY *try_key_ref(struct extracted_param_data_st *data,
202 OSSL_STORE_CTX *ctx,
203 const OSSL_PROVIDER *provider,
204 OSSL_LIB_CTX *libctx, const char *propq)
205 {
206 EVP_PKEY *pk = NULL;
207 EVP_KEYMGMT *keymgmt = NULL;
208 void *keydata = NULL;
209 int try_fallback = 2;
210
211 /* If we have an object reference, we must have a data type */
212 if (data->data_type == NULL)
213 return 0;
214
215 keymgmt = EVP_KEYMGMT_fetch(libctx, data->data_type, propq);
216 ERR_set_mark();
217 while (keymgmt != NULL && keydata == NULL && try_fallback-- > 0) {
218 /*
219 * There are two possible cases
220 *
221 * 1. The keymgmt is from the same provider as the loader,
222 * so we can use evp_keymgmt_load()
223 * 2. The keymgmt is from another provider, then we must
224 * do the export/import dance.
225 */
226 if (EVP_KEYMGMT_get0_provider(keymgmt) == provider) {
227 /* no point trying fallback here */
228 try_fallback = 0;
229 keydata = evp_keymgmt_load(keymgmt, data->ref, data->ref_size);
230 } else {
231 struct evp_keymgmt_util_try_import_data_st import_data;
232 OSSL_FUNC_store_export_object_fn *export_object = ctx->fetched_loader->p_export_object;
233
234 import_data.keymgmt = keymgmt;
235 import_data.keydata = NULL;
236 import_data.selection = OSSL_KEYMGMT_SELECT_ALL;
237
238 if (export_object != NULL) {
239 /*
240 * No need to check for errors here, the value of
241 * |import_data.keydata| is as much an indicator.
242 */
243 (void)export_object(ctx->loader_ctx,
244 data->ref, data->ref_size,
245 &evp_keymgmt_util_try_import,
246 &import_data);
247 }
248
249 keydata = import_data.keydata;
250 }
251
252 if (keydata == NULL && try_fallback > 0) {
253 EVP_KEYMGMT_free(keymgmt);
254 keymgmt = evp_keymgmt_fetch_from_prov((OSSL_PROVIDER *)provider,
255 data->data_type, propq);
256 if (keymgmt != NULL) {
257 ERR_pop_to_mark();
258 ERR_set_mark();
259 }
260 }
261 }
262 if (keydata != NULL) {
263 ERR_pop_to_mark();
264 pk = evp_keymgmt_util_make_pkey(keymgmt, keydata);
265 } else {
266 ERR_clear_last_mark();
267 }
268 EVP_KEYMGMT_free(keymgmt);
269
270 return pk;
271 }
272
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,int * harderr)273 static EVP_PKEY *try_key_value(struct extracted_param_data_st *data,
274 OSSL_STORE_CTX *ctx,
275 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
276 OSSL_LIB_CTX *libctx, const char *propq,
277 int *harderr)
278 {
279 EVP_PKEY *pk = NULL;
280 OSSL_DECODER_CTX *decoderctx = NULL;
281 const unsigned char *pdata = data->octet_data;
282 size_t pdatalen = data->octet_data_size;
283 int selection = 0;
284
285 switch (ctx->expected_type) {
286 case 0:
287 break;
288 case OSSL_STORE_INFO_PARAMS:
289 selection = OSSL_KEYMGMT_SELECT_ALL_PARAMETERS;
290 break;
291 case OSSL_STORE_INFO_PUBKEY:
292 selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY
293 | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS;
294 break;
295 case OSSL_STORE_INFO_PKEY:
296 selection = OSSL_KEYMGMT_SELECT_ALL;
297 break;
298 default:
299 return NULL;
300 }
301
302 decoderctx = OSSL_DECODER_CTX_new_for_pkey(&pk, data->input_type, data->data_structure,
303 data->data_type, selection, libctx,
304 propq);
305 (void)OSSL_DECODER_CTX_set_passphrase_cb(decoderctx, cb, cbarg);
306
307 /* No error if this couldn't be decoded */
308 (void)OSSL_DECODER_from_data(decoderctx, &pdata, &pdatalen);
309
310 /* Save the hard error state. */
311 *harderr = ossl_decoder_ctx_get_harderr(decoderctx);
312 OSSL_DECODER_CTX_free(decoderctx);
313
314 return pk;
315 }
316
317 typedef OSSL_STORE_INFO *store_info_new_fn(EVP_PKEY *);
318
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)319 static EVP_PKEY *try_key_value_legacy(struct extracted_param_data_st *data,
320 store_info_new_fn **store_info_new,
321 OSSL_STORE_CTX *ctx,
322 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg,
323 OSSL_LIB_CTX *libctx, const char *propq)
324 {
325 EVP_PKEY *pk = NULL;
326 const unsigned char *der = data->octet_data, *derp;
327 long der_len = (long)data->octet_data_size;
328
329 /* Try PUBKEY first, that's a real easy target */
330 if (ctx->expected_type == 0
331 || ctx->expected_type == OSSL_STORE_INFO_PUBKEY) {
332 derp = der;
333 pk = d2i_PUBKEY_ex(NULL, &derp, der_len, libctx, propq);
334
335 if (pk != NULL)
336 *store_info_new = OSSL_STORE_INFO_new_PUBKEY;
337 }
338
339 /* Try private keys next */
340 if (pk == NULL
341 && (ctx->expected_type == 0
342 || ctx->expected_type == OSSL_STORE_INFO_PKEY)) {
343 unsigned char *new_der = NULL;
344 X509_SIG *p8 = NULL;
345 PKCS8_PRIV_KEY_INFO *p8info = NULL;
346
347 /* See if it's an encrypted PKCS#8 and decrypt it. */
348 derp = der;
349 p8 = d2i_X509_SIG(NULL, &derp, der_len);
350
351 if (p8 != NULL) {
352 char pbuf[PEM_BUFSIZE];
353 size_t plen = 0;
354
355 if (!cb(pbuf, sizeof(pbuf), &plen, NULL, cbarg)) {
356 ERR_raise(ERR_LIB_OSSL_STORE, OSSL_STORE_R_BAD_PASSWORD_READ);
357 } else {
358 const X509_ALGOR *alg = NULL;
359 const ASN1_OCTET_STRING *oct = NULL;
360 int len = 0;
361
362 X509_SIG_get0(p8, &alg, &oct);
363
364 /*
365 * No need to check the returned value, |new_der|
366 * will be NULL on error anyway.
367 */
368 PKCS12_pbe_crypt(alg, pbuf, plen,
369 oct->data, oct->length,
370 &new_der, &len, 0);
371 der_len = len;
372 der = new_der;
373 }
374 X509_SIG_free(p8);
375 }
376
377 /*
378 * If the encrypted PKCS#8 couldn't be decrypted,
379 * |der| is NULL
380 */
381 if (der != NULL) {
382 /* Try to unpack an unencrypted PKCS#8, that's easy */
383 derp = der;
384 p8info = d2i_PKCS8_PRIV_KEY_INFO(NULL, &derp, der_len);
385
386 if (p8info != NULL) {
387 pk = EVP_PKCS82PKEY_ex(p8info, libctx, propq);
388 PKCS8_PRIV_KEY_INFO_free(p8info);
389 }
390 }
391
392 if (pk != NULL)
393 *store_info_new = OSSL_STORE_INFO_new_PKEY;
394
395 OPENSSL_free(new_der);
396 }
397
398 return pk;
399 }
400
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)401 static int try_key(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
402 OSSL_STORE_CTX *ctx, const OSSL_PROVIDER *provider,
403 OSSL_LIB_CTX *libctx, const char *propq)
404 {
405 store_info_new_fn *store_info_new = NULL;
406 int harderr = 0;
407
408 if (data->object_type == OSSL_OBJECT_UNKNOWN
409 || data->object_type == OSSL_OBJECT_PKEY) {
410 EVP_PKEY *pk = NULL;
411
412 /* Prefer key by reference than key by value */
413 if (data->object_type == OSSL_OBJECT_PKEY && data->ref != NULL) {
414 pk = try_key_ref(data, ctx, provider, libctx, propq);
415
416 /*
417 * If for some reason we couldn't get a key, it's an error.
418 * It indicates that while decoders could make a key reference,
419 * the keymgmt somehow couldn't handle it, or doesn't have a
420 * OSSL_FUNC_keymgmt_load function.
421 */
422 if (pk == NULL)
423 return 0;
424 } else if (data->octet_data != NULL) {
425 OSSL_PASSPHRASE_CALLBACK *cb = ossl_pw_passphrase_callback_dec;
426 void *cbarg = &ctx->pwdata;
427
428 pk = try_key_value(data, ctx, cb, cbarg, libctx, propq, &harderr);
429
430 /*
431 * Desperate last maneuver, in case the decoders don't support
432 * the data we have, then we try on our own to at least get an
433 * engine provided legacy key.
434 * This is the same as der2key_decode() does, but in a limited
435 * way and within the walls of libcrypto.
436 */
437 if (pk == NULL && harderr == 0)
438 pk = try_key_value_legacy(data, &store_info_new, ctx,
439 cb, cbarg, libctx, propq);
440 }
441
442 if (pk != NULL) {
443 data->object_type = OSSL_OBJECT_PKEY;
444
445 if (store_info_new == NULL) {
446 /*
447 * We determined the object type for OSSL_STORE_INFO, which
448 * makes an explicit difference between an EVP_PKEY with just
449 * (domain) parameters and an EVP_PKEY with actual key
450 * material.
451 * The logic is that an EVP_PKEY with actual key material
452 * always has the public half.
453 */
454 if (evp_keymgmt_util_has(pk, OSSL_KEYMGMT_SELECT_PRIVATE_KEY))
455 store_info_new = OSSL_STORE_INFO_new_PKEY;
456 else if (evp_keymgmt_util_has(pk,
457 OSSL_KEYMGMT_SELECT_PUBLIC_KEY))
458 store_info_new = OSSL_STORE_INFO_new_PUBKEY;
459 else
460 store_info_new = OSSL_STORE_INFO_new_PARAMS;
461 }
462 *v = store_info_new(pk);
463 }
464
465 if (*v == NULL)
466 EVP_PKEY_free(pk);
467 }
468
469 return harderr == 0;
470 }
471
try_cert(struct extracted_param_data_st * data,OSSL_STORE_INFO ** v,OSSL_LIB_CTX * libctx,const char * propq)472 static int try_cert(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
473 OSSL_LIB_CTX *libctx, const char *propq)
474 {
475 if (data->object_type == OSSL_OBJECT_UNKNOWN
476 || data->object_type == OSSL_OBJECT_CERT) {
477 /*
478 * In most cases, we can try to interpret the serialized
479 * data as a trusted cert (X509 + X509_AUX) and fall back
480 * to reading it as a normal cert (just X509), but if
481 * |data_type| (the PEM name) specifically declares it as a
482 * trusted cert, then no fallback should be engaged.
483 * |ignore_trusted| tells if the fallback can be used (1)
484 * or not (0).
485 */
486 int ignore_trusted = 1;
487 X509 *cert = X509_new_ex(libctx, propq);
488
489 if (cert == NULL)
490 return 0;
491
492 /* If we have a data type, it should be a PEM name */
493 if (data->data_type != NULL
494 && (OPENSSL_strcasecmp(data->data_type, PEM_STRING_X509_TRUSTED) == 0))
495 ignore_trusted = 0;
496
497 if (d2i_X509_AUX(&cert, (const unsigned char **)&data->octet_data,
498 data->octet_data_size)
499 == NULL
500 && (!ignore_trusted
501 || d2i_X509(&cert, (const unsigned char **)&data->octet_data,
502 data->octet_data_size)
503 == NULL)) {
504 X509_free(cert);
505 cert = NULL;
506 }
507
508 if (cert != NULL) {
509 /* We determined the object type */
510 data->object_type = OSSL_OBJECT_CERT;
511 *v = OSSL_STORE_INFO_new_CERT(cert);
512 if (*v == NULL)
513 X509_free(cert);
514 }
515 }
516
517 return 1;
518 }
519
try_crl(struct extracted_param_data_st * data,OSSL_STORE_INFO ** v,OSSL_LIB_CTX * libctx,const char * propq)520 static int try_crl(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
521 OSSL_LIB_CTX *libctx, const char *propq)
522 {
523 if (data->object_type == OSSL_OBJECT_UNKNOWN
524 || data->object_type == OSSL_OBJECT_CRL) {
525 X509_CRL *crl;
526
527 crl = d2i_X509_CRL(NULL, (const unsigned char **)&data->octet_data,
528 data->octet_data_size);
529
530 if (crl != NULL)
531 /* We determined the object type */
532 data->object_type = OSSL_OBJECT_CRL;
533
534 if (crl != NULL && !ossl_x509_crl_set0_libctx(crl, libctx, propq)) {
535 X509_CRL_free(crl);
536 crl = NULL;
537 }
538
539 if (crl != NULL)
540 *v = OSSL_STORE_INFO_new_CRL(crl);
541 if (*v == NULL)
542 X509_CRL_free(crl);
543 }
544
545 return 1;
546 }
547
try_pkcs12(struct extracted_param_data_st * data,OSSL_STORE_INFO ** v,OSSL_STORE_CTX * ctx,OSSL_LIB_CTX * libctx,const char * propq)548 static int try_pkcs12(struct extracted_param_data_st *data, OSSL_STORE_INFO **v,
549 OSSL_STORE_CTX *ctx,
550 OSSL_LIB_CTX *libctx, const char *propq)
551 {
552 int ok = 1;
553
554 /* There is no specific object type for PKCS12 */
555 if (data->object_type == OSSL_OBJECT_UNKNOWN) {
556 /* Initial parsing */
557 PKCS12 *p12;
558
559 p12 = d2i_PKCS12(NULL, (const unsigned char **)&data->octet_data,
560 data->octet_data_size);
561
562 if (p12 != NULL) {
563 char *pass = NULL;
564 char tpass[PEM_BUFSIZE + 1];
565 size_t tpass_len;
566 EVP_PKEY *pkey = NULL;
567 X509 *cert = NULL;
568 STACK_OF(X509) *chain = NULL;
569
570 data->object_type = OSSL_OBJECT_PKCS12;
571
572 ok = 0; /* Assume decryption or parse error */
573
574 if (!PKCS12_mac_present(p12)
575 || PKCS12_verify_mac(p12, NULL, 0)) {
576 pass = NULL;
577 } else if (PKCS12_verify_mac(p12, "", 0)) {
578 pass = "";
579 } else {
580 static char prompt_info[] = "PKCS12 import pass phrase";
581 OSSL_PARAM pw_params[] = {
582 OSSL_PARAM_utf8_string(OSSL_PASSPHRASE_PARAM_INFO,
583 prompt_info,
584 sizeof(prompt_info) - 1),
585 OSSL_PARAM_END
586 };
587
588 if (!ossl_pw_get_passphrase(tpass, sizeof(tpass) - 1,
589 &tpass_len,
590 pw_params, 0, &ctx->pwdata)) {
591 ERR_raise(ERR_LIB_OSSL_STORE,
592 OSSL_STORE_R_PASSPHRASE_CALLBACK_ERROR);
593 goto p12_end;
594 }
595 pass = tpass;
596 /*
597 * ossl_pw_get_passphrase() does not NUL terminate but
598 * we must do it for PKCS12_parse()
599 */
600 pass[tpass_len] = '\0';
601 if (!PKCS12_verify_mac(p12, pass, tpass_len)) {
602 ERR_raise_data(ERR_LIB_OSSL_STORE,
603 OSSL_STORE_R_ERROR_VERIFYING_PKCS12_MAC,
604 tpass_len == 0 ? "empty password" : "maybe wrong password");
605 goto p12_end;
606 }
607 }
608
609 if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) {
610 STACK_OF(OSSL_STORE_INFO) *infos = NULL;
611 OSSL_STORE_INFO *osi_pkey = NULL;
612 OSSL_STORE_INFO *osi_cert = NULL;
613 OSSL_STORE_INFO *osi_ca = NULL;
614
615 ok = 1; /* Parsing went through correctly! */
616
617 if ((infos = sk_OSSL_STORE_INFO_new_null()) != NULL) {
618 if (pkey != NULL) {
619 if ((osi_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL
620 /* clearing pkey here avoids case distinctions */
621 && (pkey = NULL) == NULL
622 && sk_OSSL_STORE_INFO_push(infos, osi_pkey) != 0)
623 osi_pkey = NULL;
624 else
625 ok = 0;
626 }
627 if (ok && cert != NULL) {
628 if ((osi_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL
629 /* clearing cert here avoids case distinctions */
630 && (cert = NULL) == NULL
631 && sk_OSSL_STORE_INFO_push(infos, osi_cert) != 0)
632 osi_cert = NULL;
633 else
634 ok = 0;
635 }
636 while (ok && sk_X509_num(chain) > 0) {
637 X509 *ca = sk_X509_value(chain, 0);
638
639 if ((osi_ca = OSSL_STORE_INFO_new_CERT(ca)) != NULL
640 && sk_X509_shift(chain) != NULL
641 && sk_OSSL_STORE_INFO_push(infos, osi_ca) != 0)
642 osi_ca = NULL;
643 else
644 ok = 0;
645 }
646 }
647 EVP_PKEY_free(pkey);
648 X509_free(cert);
649 OSSL_STACK_OF_X509_free(chain);
650 OSSL_STORE_INFO_free(osi_pkey);
651 OSSL_STORE_INFO_free(osi_cert);
652 OSSL_STORE_INFO_free(osi_ca);
653 if (!ok) {
654 sk_OSSL_STORE_INFO_pop_free(infos, OSSL_STORE_INFO_free);
655 infos = NULL;
656 }
657 ctx->cached_info = infos;
658 }
659 p12_end:
660 OPENSSL_cleanse(tpass, sizeof(tpass));
661 PKCS12_free(p12);
662 }
663 *v = sk_OSSL_STORE_INFO_shift(ctx->cached_info);
664 }
665
666 return ok;
667 }
668