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6aa2e59e SL |
1 | /* |
2 | * Copyright 2019 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 <stdio.h> | |
11 | #include "internal/cryptlib.h" | |
12 | #include <openssl/evp.h> | |
13 | #include <openssl/asn1.h> | |
16feca71 | 14 | #include "internal/asn1.h" |
25f2138b | 15 | #include "crypto/asn1.h" |
16feca71 | 16 | #include "crypto/evp.h" |
6aa2e59e SL |
17 | |
18 | EVP_PKEY *d2i_KeyParams(int type, EVP_PKEY **a, const unsigned char **pp, | |
19 | long length) | |
20 | { | |
21 | EVP_PKEY *ret = NULL; | |
6aa2e59e SL |
22 | |
23 | if ((a == NULL) || (*a == NULL)) { | |
24 | if ((ret = EVP_PKEY_new()) == NULL) | |
25 | return NULL; | |
26 | } else | |
27 | ret = *a; | |
28 | ||
29 | if (type != EVP_PKEY_id(ret) && !EVP_PKEY_set_type(ret, type)) | |
30 | goto err; | |
31 | ||
32 | if (ret->ameth == NULL || ret->ameth->param_decode == NULL) { | |
33 | ASN1err(ASN1_F_D2I_KEYPARAMS, ASN1_R_UNSUPPORTED_TYPE); | |
34 | goto err; | |
35 | } | |
36 | ||
a9556761 | 37 | if (!ret->ameth->param_decode(ret, pp, length)) |
6aa2e59e SL |
38 | goto err; |
39 | ||
40 | if (a != NULL) | |
41 | (*a) = ret; | |
42 | return ret; | |
43 | err: | |
44 | if (a == NULL || *a != ret) | |
45 | EVP_PKEY_free(ret); | |
46 | return NULL; | |
47 | } | |
48 | ||
49 | EVP_PKEY *d2i_KeyParams_bio(int type, EVP_PKEY **a, BIO *in) | |
50 | { | |
51 | BUF_MEM *b = NULL; | |
52 | const unsigned char *p; | |
53 | void *ret = NULL; | |
54 | int len; | |
55 | ||
56 | len = asn1_d2i_read_bio(in, &b); | |
57 | if (len < 0) | |
58 | goto err; | |
59 | ||
60 | p = (unsigned char *)b->data; | |
61 | ret = d2i_KeyParams(type, a, &p, len); | |
62 | err: | |
63 | BUF_MEM_free(b); | |
64 | return ret; | |
65 | } |