Make sure we take the ctx->lock in ossl_lib_ctx_generic_new()
[openssl.git] / crypto / param_build_set.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 /*
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             return 0;
78         /* TODO(3.0) Change to use OSSL_PARAM_set_BN_pad */
79         p->data_size = sz;
80         return OSSL_PARAM_set_BN(p, bn);
81     }
82     return 1;
83 }
84
85 int ossl_param_build_set_bn(OSSL_PARAM_BLD *bld, OSSL_PARAM *p,
86                             const char *key, const BIGNUM *bn)
87 {
88     if (bld != NULL)
89         return OSSL_PARAM_BLD_push_BN(bld, key, bn);
90
91     p = OSSL_PARAM_locate(p, key);
92     if (p != NULL)
93         return OSSL_PARAM_set_BN(p, bn) > 0;
94     return 1;
95 }
96
97 int ossl_param_build_set_multi_key_bn(OSSL_PARAM_BLD *bld, OSSL_PARAM *params,
98                                       const char *names[],
99                                       STACK_OF(BIGNUM_const) *stk)
100 {
101     int i, sz = sk_BIGNUM_const_num(stk);
102     OSSL_PARAM *p;
103
104
105     if (bld != NULL) {
106         for (i = 0; i < sz && names[i] != NULL; ++i) {
107             if (!OSSL_PARAM_BLD_push_BN(bld, names[i],
108                                         sk_BIGNUM_const_value(stk, i)))
109                 return 0;
110         }
111         return 1;
112     }
113
114     for (i = 0; i < sz && names[i] != NULL; ++i) {
115         p = OSSL_PARAM_locate(params, names[i]);
116         if (p != NULL) {
117             if (!OSSL_PARAM_set_BN(p, sk_BIGNUM_const_value(stk, i)))
118                 return 0;
119         }
120     }
121     return 1;
122 }