Coverage Report

Created: 2024-11-21 07:03

/src/openssl/crypto/evp/keymgmt_meth.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 2019-2024 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 <openssl/crypto.h>
11
#include <openssl/core_dispatch.h>
12
#include <openssl/evp.h>
13
#include <openssl/err.h>
14
#include "internal/provider.h"
15
#include "internal/refcount.h"
16
#include "internal/core.h"
17
#include "crypto/evp.h"
18
#include "evp_local.h"
19
20
static void *keymgmt_new(void)
21
36
{
22
36
    EVP_KEYMGMT *keymgmt = NULL;
23
24
36
    if ((keymgmt = OPENSSL_zalloc(sizeof(*keymgmt))) == NULL)
25
0
        return NULL;
26
36
    if (!CRYPTO_NEW_REF(&keymgmt->refcnt, 1)) {
27
0
        EVP_KEYMGMT_free(keymgmt);
28
0
        return NULL;
29
0
    }
30
36
    return keymgmt;
31
36
}
32
33
#ifndef FIPS_MODULE
34
static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
35
                                                  void *arg)
36
86
{
37
86
    int *type = arg;
38
39
86
    if (*type == NID_undef)
40
40
        *type = evp_pkey_name2type(keytype);
41
86
}
42
43
static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
44
36
{
45
36
    int type = NID_undef;
46
47
36
    EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
48
36
                             &type);
49
36
    return type;
50
36
}
51
#endif
52
53
static void *keymgmt_from_algorithm(int name_id,
54
                                    const OSSL_ALGORITHM *algodef,
55
                                    OSSL_PROVIDER *prov)
56
36
{
57
36
    const OSSL_DISPATCH *fns = algodef->implementation;
58
36
    EVP_KEYMGMT *keymgmt = NULL;
59
36
    int setparamfncnt = 0, getparamfncnt = 0;
60
36
    int setgenparamfncnt = 0;
61
36
    int importfncnt = 0, exportfncnt = 0;
62
36
    int importtypesfncnt = 0, exporttypesfncnt = 0;
63
36
    int getgenparamfncnt = 0;
64
65
36
    if ((keymgmt = keymgmt_new()) == NULL)
66
0
        return NULL;
67
68
36
    keymgmt->name_id = name_id;
69
36
    if ((keymgmt->type_name = ossl_algorithm_get1_first_name(algodef)) == NULL) {
70
0
        EVP_KEYMGMT_free(keymgmt);
71
0
        return NULL;
72
0
    }
73
36
    keymgmt->description = algodef->algorithm_description;
74
75
644
    for (; fns->function_id != 0; fns++) {
76
608
        switch (fns->function_id) {
77
36
        case OSSL_FUNC_KEYMGMT_NEW:
78
36
            if (keymgmt->new == NULL)
79
36
                keymgmt->new = OSSL_FUNC_keymgmt_new(fns);
80
36
            break;
81
30
        case OSSL_FUNC_KEYMGMT_GEN_INIT:
82
30
            if (keymgmt->gen_init == NULL)
83
30
                keymgmt->gen_init = OSSL_FUNC_keymgmt_gen_init(fns);
84
30
            break;
85
10
        case OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE:
86
10
            if (keymgmt->gen_set_template == NULL)
87
10
                keymgmt->gen_set_template =
88
10
                    OSSL_FUNC_keymgmt_gen_set_template(fns);
89
10
            break;
90
30
        case OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS:
91
30
            if (keymgmt->gen_set_params == NULL) {
92
30
                setgenparamfncnt++;
93
30
                keymgmt->gen_set_params =
94
30
                    OSSL_FUNC_keymgmt_gen_set_params(fns);
95
30
            }
96
30
            break;
97
30
        case OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS:
98
30
            if (keymgmt->gen_settable_params == NULL) {
99
30
                setgenparamfncnt++;
100
30
                keymgmt->gen_settable_params =
101
30
                    OSSL_FUNC_keymgmt_gen_settable_params(fns);
102
30
            }
103
30
            break;
104
4
        case OSSL_FUNC_KEYMGMT_GEN_GET_PARAMS:
105
4
            if (keymgmt->gen_get_params == NULL) {
106
4
                getgenparamfncnt++;
107
4
                keymgmt->gen_get_params =
108
4
                    OSSL_FUNC_keymgmt_gen_get_params(fns);
109
4
            }
110
4
            break;
111
4
        case OSSL_FUNC_KEYMGMT_GEN_GETTABLE_PARAMS:
112
4
            if (keymgmt->gen_gettable_params == NULL) {
113
4
                getgenparamfncnt++;
114
4
                keymgmt->gen_gettable_params =
115
4
                    OSSL_FUNC_keymgmt_gen_gettable_params(fns);
116
4
            }
117
4
            break;
118
30
        case OSSL_FUNC_KEYMGMT_GEN:
119
30
            if (keymgmt->gen == NULL)
120
30
                keymgmt->gen = OSSL_FUNC_keymgmt_gen(fns);
121
30
            break;
122
30
        case OSSL_FUNC_KEYMGMT_GEN_CLEANUP:
123
30
            if (keymgmt->gen_cleanup == NULL)
124
30
                keymgmt->gen_cleanup = OSSL_FUNC_keymgmt_gen_cleanup(fns);
125
30
            break;
126
36
        case OSSL_FUNC_KEYMGMT_FREE:
127
36
            if (keymgmt->free == NULL)
128
36
                keymgmt->free = OSSL_FUNC_keymgmt_free(fns);
129
36
            break;
130
22
        case OSSL_FUNC_KEYMGMT_LOAD:
131
22
            if (keymgmt->load == NULL)
132
22
                keymgmt->load = OSSL_FUNC_keymgmt_load(fns);
133
22
            break;
134
30
        case OSSL_FUNC_KEYMGMT_GET_PARAMS:
135
30
            if (keymgmt->get_params == NULL) {
136
30
                getparamfncnt++;
137
30
                keymgmt->get_params = OSSL_FUNC_keymgmt_get_params(fns);
138
30
            }
139
30
            break;
140
30
        case OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS:
141
30
            if (keymgmt->gettable_params == NULL) {
142
30
                getparamfncnt++;
143
30
                keymgmt->gettable_params =
144
30
                    OSSL_FUNC_keymgmt_gettable_params(fns);
145
30
            }
146
30
            break;
147
24
         case OSSL_FUNC_KEYMGMT_SET_PARAMS:
148
24
            if (keymgmt->set_params == NULL) {
149
24
                setparamfncnt++;
150
24
                keymgmt->set_params = OSSL_FUNC_keymgmt_set_params(fns);
151
24
            }
152
24
            break;
153
24
        case OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS:
154
24
            if (keymgmt->settable_params == NULL) {
155
24
                setparamfncnt++;
156
24
                keymgmt->settable_params =
157
24
                    OSSL_FUNC_keymgmt_settable_params(fns);
158
24
            }
159
24
            break;
160
8
        case OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME:
161
8
            if (keymgmt->query_operation_name == NULL)
162
8
                keymgmt->query_operation_name =
163
8
                    OSSL_FUNC_keymgmt_query_operation_name(fns);
164
8
            break;
165
36
        case OSSL_FUNC_KEYMGMT_HAS:
166
36
            if (keymgmt->has == NULL)
167
36
                keymgmt->has = OSSL_FUNC_keymgmt_has(fns);
168
36
            break;
169
22
        case OSSL_FUNC_KEYMGMT_DUP:
170
22
            if (keymgmt->dup == NULL)
171
22
                keymgmt->dup = OSSL_FUNC_keymgmt_dup(fns);
172
22
            break;
173
22
        case OSSL_FUNC_KEYMGMT_VALIDATE:
174
22
            if (keymgmt->validate == NULL)
175
22
                keymgmt->validate = OSSL_FUNC_keymgmt_validate(fns);
176
22
            break;
177
30
        case OSSL_FUNC_KEYMGMT_MATCH:
178
30
            if (keymgmt->match == NULL)
179
30
                keymgmt->match = OSSL_FUNC_keymgmt_match(fns);
180
30
            break;
181
30
        case OSSL_FUNC_KEYMGMT_IMPORT:
182
30
            if (keymgmt->import == NULL) {
183
30
                importfncnt++;
184
30
                keymgmt->import = OSSL_FUNC_keymgmt_import(fns);
185
30
            }
186
30
            break;
187
30
        case OSSL_FUNC_KEYMGMT_IMPORT_TYPES:
188
30
            if (keymgmt->import_types == NULL) {
189
30
                if (importtypesfncnt == 0)
190
30
                    importfncnt++;
191
30
                importtypesfncnt++;
192
30
                keymgmt->import_types = OSSL_FUNC_keymgmt_import_types(fns);
193
30
            }
194
30
            break;
195
0
        case OSSL_FUNC_KEYMGMT_IMPORT_TYPES_EX:
196
0
            if (keymgmt->import_types_ex == NULL) {
197
0
                if (importtypesfncnt == 0)
198
0
                    importfncnt++;
199
0
                importtypesfncnt++;
200
0
                keymgmt->import_types_ex = OSSL_FUNC_keymgmt_import_types_ex(fns);
201
0
            }
202
0
            break;
203
30
        case OSSL_FUNC_KEYMGMT_EXPORT:
204
30
            if (keymgmt->export == NULL) {
205
30
                exportfncnt++;
206
30
                keymgmt->export = OSSL_FUNC_keymgmt_export(fns);
207
30
            }
208
30
            break;
209
30
        case OSSL_FUNC_KEYMGMT_EXPORT_TYPES:
210
30
            if (keymgmt->export_types == NULL) {
211
30
                if (exporttypesfncnt == 0)
212
30
                    exportfncnt++;
213
30
                exporttypesfncnt++;
214
30
                keymgmt->export_types = OSSL_FUNC_keymgmt_export_types(fns);
215
30
            }
216
30
            break;
217
0
        case OSSL_FUNC_KEYMGMT_EXPORT_TYPES_EX:
218
0
            if (keymgmt->export_types_ex == NULL) {
219
0
                if (exporttypesfncnt == 0)
220
0
                    exportfncnt++;
221
0
                exporttypesfncnt++;
222
0
                keymgmt->export_types_ex = OSSL_FUNC_keymgmt_export_types_ex(fns);
223
0
            }
224
0
            break;
225
608
        }
226
608
    }
227
    /*
228
     * Try to check that the method is sensible.
229
     * At least one constructor and the destructor are MANDATORY
230
     * The functions 'has' is MANDATORY
231
     * It makes no sense being able to free stuff if you can't create it.
232
     * It makes no sense providing OSSL_PARAM descriptors for import and
233
     * export if you can't import or export.
234
     */
235
36
    if (keymgmt->free == NULL
236
36
        || (keymgmt->new == NULL
237
36
            && keymgmt->gen == NULL
238
36
            && keymgmt->load == NULL)
239
36
        || keymgmt->has == NULL
240
36
        || (getparamfncnt != 0 && getparamfncnt != 2)
241
36
        || (setparamfncnt != 0 && setparamfncnt != 2)
242
36
        || (setgenparamfncnt != 0 && setgenparamfncnt != 2)
243
36
        || (getgenparamfncnt != 0 && getgenparamfncnt != 2)
244
36
        || (importfncnt != 0 && importfncnt != 2)
245
36
        || (exportfncnt != 0 && exportfncnt != 2)
246
36
        || (keymgmt->gen != NULL
247
36
            && (keymgmt->gen_init == NULL
248
30
                || keymgmt->gen_cleanup == NULL))) {
249
0
        EVP_KEYMGMT_free(keymgmt);
250
0
        ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS);
251
0
        return NULL;
252
0
    }
253
36
    keymgmt->prov = prov;
254
36
    if (prov != NULL)
255
36
        ossl_provider_up_ref(prov);
256
257
36
#ifndef FIPS_MODULE
258
36
    keymgmt->legacy_alg = get_legacy_alg_type_from_keymgmt(keymgmt);
259
36
#endif
260
261
36
    return keymgmt;
262
36
}
263
264
EVP_KEYMGMT *evp_keymgmt_fetch_from_prov(OSSL_PROVIDER *prov,
265
                                         const char *name,
266
                                         const char *properties)
267
3.38k
{
268
3.38k
    return evp_generic_fetch_from_prov(prov, OSSL_OP_KEYMGMT,
269
3.38k
                                       name, properties,
270
3.38k
                                       keymgmt_from_algorithm,
271
3.38k
                                       (int (*)(void *))EVP_KEYMGMT_up_ref,
272
3.38k
                                       (void (*)(void *))EVP_KEYMGMT_free);
273
3.38k
}
274
275
EVP_KEYMGMT *EVP_KEYMGMT_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
276
                               const char *properties)
277
3.51k
{
278
3.51k
    return evp_generic_fetch(ctx, OSSL_OP_KEYMGMT, algorithm, properties,
279
3.51k
                             keymgmt_from_algorithm,
280
3.51k
                             (int (*)(void *))EVP_KEYMGMT_up_ref,
281
3.51k
                             (void (*)(void *))EVP_KEYMGMT_free);
282
3.51k
}
283
284
int EVP_KEYMGMT_up_ref(EVP_KEYMGMT *keymgmt)
285
13.2k
{
286
13.2k
    int ref = 0;
287
288
13.2k
    CRYPTO_UP_REF(&keymgmt->refcnt, &ref);
289
13.2k
    return 1;
290
13.2k
}
291
292
void EVP_KEYMGMT_free(EVP_KEYMGMT *keymgmt)
293
56.1k
{
294
56.1k
    int ref = 0;
295
296
56.1k
    if (keymgmt == NULL)
297
42.9k
        return;
298
299
13.2k
    CRYPTO_DOWN_REF(&keymgmt->refcnt, &ref);
300
13.2k
    if (ref > 0)
301
13.2k
        return;
302
36
    OPENSSL_free(keymgmt->type_name);
303
36
    ossl_provider_free(keymgmt->prov);
304
36
    CRYPTO_FREE_REF(&keymgmt->refcnt);
305
36
    OPENSSL_free(keymgmt);
306
36
}
307
308
const OSSL_PROVIDER *EVP_KEYMGMT_get0_provider(const EVP_KEYMGMT *keymgmt)
309
3.51k
{
310
3.51k
    return keymgmt->prov;
311
3.51k
}
312
313
int evp_keymgmt_get_number(const EVP_KEYMGMT *keymgmt)
314
0
{
315
0
    return keymgmt->name_id;
316
0
}
317
318
int evp_keymgmt_get_legacy_alg(const EVP_KEYMGMT *keymgmt)
319
6.42k
{
320
6.42k
    return keymgmt->legacy_alg;
321
6.42k
}
322
323
const char *EVP_KEYMGMT_get0_description(const EVP_KEYMGMT *keymgmt)
324
0
{
325
0
    return keymgmt->description;
326
0
}
327
328
const char *EVP_KEYMGMT_get0_name(const EVP_KEYMGMT *keymgmt)
329
9.67k
{
330
9.67k
    return keymgmt->type_name;
331
9.67k
}
332
333
int EVP_KEYMGMT_is_a(const EVP_KEYMGMT *keymgmt, const char *name)
334
0
{
335
0
    return keymgmt != NULL
336
0
           && evp_is_a(keymgmt->prov, keymgmt->name_id, NULL, name);
337
0
}
338
339
void EVP_KEYMGMT_do_all_provided(OSSL_LIB_CTX *libctx,
340
                                 void (*fn)(EVP_KEYMGMT *keymgmt, void *arg),
341
                                 void *arg)
342
0
{
343
0
    evp_generic_do_all(libctx, OSSL_OP_KEYMGMT,
344
0
                       (void (*)(void *, void *))fn, arg,
345
0
                       keymgmt_from_algorithm,
346
0
                       (int (*)(void *))EVP_KEYMGMT_up_ref,
347
0
                       (void (*)(void *))EVP_KEYMGMT_free);
348
0
}
349
350
int EVP_KEYMGMT_names_do_all(const EVP_KEYMGMT *keymgmt,
351
                             void (*fn)(const char *name, void *data),
352
                             void *data)
353
3.41k
{
354
3.41k
    if (keymgmt->prov != NULL)
355
3.41k
        return evp_names_do_all(keymgmt->prov, keymgmt->name_id, fn, data);
356
357
0
    return 1;
358
3.41k
}
359
360
/*
361
 * Internal API that interfaces with the method function pointers
362
 */
363
void *evp_keymgmt_newdata(const EVP_KEYMGMT *keymgmt)
364
470
{
365
470
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
366
367
    /*
368
     * 'new' is currently mandatory on its own, but when new
369
     * constructors appear, it won't be quite as mandatory,
370
     * so we have a check for future cases.
371
     */
372
470
    if (keymgmt->new == NULL)
373
0
        return NULL;
374
470
    return keymgmt->new(provctx);
375
470
}
376
377
void evp_keymgmt_freedata(const EVP_KEYMGMT *keymgmt, void *keydata)
378
3.38k
{
379
    /* This is mandatory, no need to check for its presence */
380
3.38k
    keymgmt->free(keydata);
381
3.38k
}
382
383
void *evp_keymgmt_gen_init(const EVP_KEYMGMT *keymgmt, int selection,
384
                           const OSSL_PARAM params[])
385
3.04k
{
386
3.04k
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
387
388
3.04k
    if (keymgmt->gen_init == NULL)
389
0
        return NULL;
390
3.04k
    return keymgmt->gen_init(provctx, selection, params);
391
3.04k
}
392
393
int evp_keymgmt_gen_set_template(const EVP_KEYMGMT *keymgmt, void *genctx,
394
                                 void *templ)
395
0
{
396
    /*
397
     * It's arguable if we actually should return success in this case, as
398
     * it allows the caller to set a template key, which is then ignored.
399
     * However, this is how the legacy methods (EVP_PKEY_METHOD) operate,
400
     * so we do this in the interest of backward compatibility.
401
     */
402
0
    if (keymgmt->gen_set_template == NULL)
403
0
        return 1;
404
0
    return keymgmt->gen_set_template(genctx, templ);
405
0
}
406
407
int evp_keymgmt_gen_set_params(const EVP_KEYMGMT *keymgmt, void *genctx,
408
                               const OSSL_PARAM params[])
409
3.04k
{
410
3.04k
    if (keymgmt->gen_set_params == NULL)
411
0
        return 0;
412
3.04k
    return keymgmt->gen_set_params(genctx, params);
413
3.04k
}
414
415
const OSSL_PARAM *EVP_KEYMGMT_gen_settable_params(const EVP_KEYMGMT *keymgmt)
416
0
{
417
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
418
419
0
    if (keymgmt->gen_settable_params == NULL)
420
0
        return NULL;
421
0
    return keymgmt->gen_settable_params(NULL, provctx);
422
0
}
423
424
int evp_keymgmt_gen_get_params(const EVP_KEYMGMT *keymgmt, void *genctx,
425
                               OSSL_PARAM params[])
426
0
{
427
0
    if (keymgmt->gen_get_params == NULL)
428
0
        return 0;
429
0
    return keymgmt->gen_get_params(genctx, params);
430
0
}
431
432
const OSSL_PARAM *EVP_KEYMGMT_gen_gettable_params(const EVP_KEYMGMT *keymgmt)
433
0
{
434
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
435
436
0
    if (keymgmt->gen_gettable_params == NULL)
437
0
        return NULL;
438
0
    return keymgmt->gen_gettable_params(NULL, provctx);
439
0
}
440
441
void *evp_keymgmt_gen(const EVP_KEYMGMT *keymgmt, void *genctx,
442
                      OSSL_CALLBACK *cb, void *cbarg)
443
2.91k
{
444
2.91k
    if (keymgmt->gen == NULL)
445
0
        return NULL;
446
2.91k
    return keymgmt->gen(genctx, cb, cbarg);
447
2.91k
}
448
449
void evp_keymgmt_gen_cleanup(const EVP_KEYMGMT *keymgmt, void *genctx)
450
3.04k
{
451
3.04k
    if (keymgmt->gen_cleanup != NULL)
452
3.04k
        keymgmt->gen_cleanup(genctx);
453
3.04k
}
454
455
int evp_keymgmt_has_load(const EVP_KEYMGMT *keymgmt)
456
0
{
457
0
    return keymgmt != NULL && keymgmt->load != NULL;
458
0
}
459
460
void *evp_keymgmt_load(const EVP_KEYMGMT *keymgmt,
461
                       const void *objref, size_t objref_sz)
462
0
{
463
0
    if (evp_keymgmt_has_load(keymgmt))
464
0
        return keymgmt->load(objref, objref_sz);
465
0
    return NULL;
466
0
}
467
468
int evp_keymgmt_get_params(const EVP_KEYMGMT *keymgmt, void *keydata,
469
                           OSSL_PARAM params[])
470
2.91k
{
471
2.91k
    if (keymgmt->get_params == NULL)
472
0
        return 1;
473
2.91k
    return keymgmt->get_params(keydata, params);
474
2.91k
}
475
476
const OSSL_PARAM *EVP_KEYMGMT_gettable_params(const EVP_KEYMGMT *keymgmt)
477
0
{
478
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
479
480
0
    if (keymgmt->gettable_params == NULL)
481
0
        return NULL;
482
0
    return keymgmt->gettable_params(provctx);
483
0
}
484
485
int evp_keymgmt_set_params(const EVP_KEYMGMT *keymgmt, void *keydata,
486
                           const OSSL_PARAM params[])
487
0
{
488
0
    if (keymgmt->set_params == NULL)
489
0
        return 1;
490
0
    return keymgmt->set_params(keydata, params);
491
0
}
492
493
const OSSL_PARAM *EVP_KEYMGMT_settable_params(const EVP_KEYMGMT *keymgmt)
494
0
{
495
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
496
497
0
    if (keymgmt->settable_params == NULL)
498
0
        return NULL;
499
0
    return keymgmt->settable_params(provctx);
500
0
}
501
502
int evp_keymgmt_has(const EVP_KEYMGMT *keymgmt, void *keydata, int selection)
503
0
{
504
    /* This is mandatory, no need to check for its presence */
505
0
    return keymgmt->has(keydata, selection);
506
0
}
507
508
int evp_keymgmt_validate(const EVP_KEYMGMT *keymgmt, void *keydata,
509
                         int selection, int checktype)
510
0
{
511
    /* We assume valid if the implementation doesn't have a function */
512
0
    if (keymgmt->validate == NULL)
513
0
        return 1;
514
0
    return keymgmt->validate(keydata, selection, checktype);
515
0
}
516
517
int evp_keymgmt_match(const EVP_KEYMGMT *keymgmt,
518
                      const void *keydata1, const void *keydata2,
519
                      int selection)
520
0
{
521
    /* We assume no match if the implementation doesn't have a function */
522
0
    if (keymgmt->match == NULL)
523
0
        return 0;
524
0
    return keymgmt->match(keydata1, keydata2, selection);
525
0
}
526
527
int evp_keymgmt_import(const EVP_KEYMGMT *keymgmt, void *keydata,
528
                       int selection, const OSSL_PARAM params[])
529
0
{
530
0
    if (keymgmt->import == NULL)
531
0
        return 0;
532
0
    return keymgmt->import(keydata, selection, params);
533
0
}
534
535
const OSSL_PARAM *evp_keymgmt_import_types(const EVP_KEYMGMT *keymgmt,
536
                                           int selection)
537
0
{
538
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
539
540
0
    if (keymgmt->import_types_ex != NULL)
541
0
        return keymgmt->import_types_ex(provctx, selection);
542
0
    if (keymgmt->import_types == NULL)
543
0
        return NULL;
544
0
    return keymgmt->import_types(selection);
545
0
}
546
547
int evp_keymgmt_export(const EVP_KEYMGMT *keymgmt, void *keydata,
548
                       int selection, OSSL_CALLBACK *param_cb, void *cbarg)
549
0
{
550
0
    if (keymgmt->export == NULL)
551
0
        return 0;
552
0
    return keymgmt->export(keydata, selection, param_cb, cbarg);
553
0
}
554
555
const OSSL_PARAM *evp_keymgmt_export_types(const EVP_KEYMGMT *keymgmt,
556
                                           int selection)
557
0
{
558
0
    void *provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(keymgmt));
559
560
0
    if (keymgmt->export_types_ex != NULL)
561
0
        return keymgmt->export_types_ex(provctx, selection);
562
0
    if (keymgmt->export_types == NULL)
563
0
        return NULL;
564
0
    return keymgmt->export_types(selection);
565
0
}
566
567
void *evp_keymgmt_dup(const EVP_KEYMGMT *keymgmt, const void *keydata_from,
568
                      int selection)
569
0
{
570
    /* We assume no dup if the implementation doesn't have a function */
571
0
    if (keymgmt->dup == NULL)
572
0
        return NULL;
573
0
    return keymgmt->dup(keydata_from, selection);
574
0
}