rsa: add msvc intrinsic for non x64 platforms
[openssl.git] / crypto / param_build_set.c
1 /*
2  * Copyright 2020-2022 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 /*
11  * Key Management utility functions to share functionality between the export()
12  * and get_params() methods.
13  * export() uses OSSL_PARAM_BLD, and get_params() used the OSSL_PARAM[] to
14  * fill in parameter data for the same key and data fields.
15  */
16
17 #include <openssl/core_names.h>
18 #include "internal/param_build_set.h"
19
20 DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM)
21
22 int ossl_param_build_set_int(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
23                              const char *key, int num)
24 {
25     if (bld != NULL)
26         return OSSL_PARAM_BLD_push_int(bld, key, num);
27     p = OSSL_PARAM_locate(p, key);
28     if (p != NULL)
29         return OSSL_PARAM_set_int(p, num);
30     return 1;
31 }
32
33 int ossl_param_build_set_long(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
34                               const char *key, long num)
35 {
36     if (bld != NULL)
37         return OSSL_PARAM_BLD_push_long(bld, key, num);
38     p = OSSL_PARAM_locate(p, key);
39     if (p != NULL)
40         return OSSL_PARAM_set_long(p, num);
41     return 1;
42 }
43
44 int ossl_param_build_set_utf8_string(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
45                                      const char *key, const char *buf)
46 {
47     if (bld != NULL)
48         return OSSL_PARAM_BLD_push_utf8_string(bld, key, buf, 0);
49     p = OSSL_PARAM_locate(p, key);
50     if (p != NULL)
51         return OSSL_PARAM_set_utf8_string(p, buf);
52     return 1;
53 }
54
55 int ossl_param_build_set_octet_string(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
56                                       const char *key,
57                                       const unsigned char *data,
58                                       size_t data_len)
59 {
60     if (bld != NULL)
61         return OSSL_PARAM_BLD_push_octet_string(bld, key, data, data_len);
62
63     p = OSSL_PARAM_locate(p, key);
64     if (p != NULL)
65         return OSSL_PARAM_set_octet_string(p, data, data_len);
66     return 1;
67 }
68
69 int ossl_param_build_set_bn_pad(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
70                                 const char *key, const BIGNUM *bn,  size_t sz)
71 {
72     if (bld != NULL)
73         return OSSL_PARAM_BLD_push_BN_pad(bld, key, bn, sz);
74     p = OSSL_PARAM_locate(p, key);
75     if (p != NULL) {
76         if (sz > p->data_size) {
77             ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_TOO_SMALL_BUFFER);
78             return 0;
79         }
80         p->data_size = sz;
81         return OSSL_PARAM_set_BN(p, bn);
82     }
83     return 1;
84 }
85
86 int ossl_param_build_set_bn(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
87                             const char *key, const BIGNUM *bn)
88 {
89     if (bld != NULL)
90         return OSSL_PARAM_BLD_push_BN(bld, key, bn);
91
92     p = OSSL_PARAM_locate(p, key);
93     if (p != NULL)
94         return OSSL_PARAM_set_BN(p, bn) > 0;
95     return 1;
96 }
97
98 int ossl_param_build_set_multi_key_bn(OSSL_PARAM_BLD *bld, OSSL_PARAM *params,
99                                       const char *names[],
100                                       STACK_OF(BIGNUM_const) *stk)
101 {
102     int i, sz = sk_BIGNUM_const_num(stk);
103     OSSL_PARAM *p;
104
105
106     if (bld != NULL) {
107         for (i = 0; i < sz && names[i] != NULL; ++i) {
108             if (!OSSL_PARAM_BLD_push_BN(bld, names[i],
109                                         sk_BIGNUM_const_value(stk, i)))
110                 return 0;
111         }
112         return 1;
113     }
114
115     for (i = 0; i < sz && names[i] != NULL; ++i) {
116         p = OSSL_PARAM_locate(params, names[i]);
117         if (p != NULL) {
118             if (!OSSL_PARAM_set_BN(p, sk_BIGNUM_const_value(stk, i)))
119                 return 0;
120         }
121     }
122     return 1;
123 }