1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* TODO(v3.0): the IMPLEMENT macros in include/openssl/pem.h should be
* moved here.
*/
#include <openssl/core_dispatch.h>
#include <openssl/pem.h>
#include <openssl/encoder.h>
/*
* Selectors, named according to the ASN.1 names used throughout libcrypto.
*
* Note that these are not absolutely mandatory, they are rather a wishlist
* of sorts. The provider implementations are free to make choices that
* make sense for them, based on these selectors.
* For example, the EC backend is likely to really just output the private
* key to a PKCS#8 structure, even thought PEM_SELECTION_PrivateKey specifies
* the public key as well. This is fine, as long as the corresponding
* decoding operation can return an object that contains what libcrypto
* expects.
*/
# define PEM_SELECTION_PUBKEY EVP_PKEY_PUBLIC_KEY
# define PEM_SELECTION_PrivateKey EVP_PKEY_KEYPAIR
# define PEM_SELECTION_Parameters EVP_PKEY_KEY_PARAMETERS
/* Alternative IMPLEMENT macros for provided encoders */
# define IMPLEMENT_PEM_provided_write_body_vars(type, asn1) \
int ret = 0; \
OSSL_ENCODER_CTX *ctx = \
OSSL_ENCODER_CTX_new_by_##type(x, "PEM", PEM_SELECTION_##asn1, \
NULL, NULL); \
\
if (OSSL_ENCODER_CTX_get_num_encoders(ctx) == 0) { \
OSSL_ENCODER_CTX_free(ctx); \
goto legacy; \
}
# define IMPLEMENT_PEM_provided_write_body_pass() \
ret = 1; \
if (kstr == NULL && cb == NULL) { \
if (u != NULL) { \
kstr = u; \
klen = strlen(u); \
} else { \
cb = PEM_def_callback; \
} \
} \
if (enc != NULL) { \
ret = 0; \
if (OSSL_ENCODER_CTX_set_cipher(ctx, EVP_CIPHER_name(enc), \
NULL)) { \
ret = 1; \
if (kstr != NULL \
&& !OSSL_ENCODER_CTX_set_passphrase(ctx, kstr, klen)) \
ret = 0; \
else if (cb != NULL \
&& !OSSL_ENCODER_CTX_set_pem_password_cb(ctx, \
cb, u)) \
ret = 0; \
} \
} \
if (!ret) { \
OSSL_ENCODER_CTX_free(ctx); \
return 0; \
}
# define IMPLEMENT_PEM_provided_write_body_main(type, outtype) \
ret = OSSL_ENCODER_to_##outtype(ctx, out); \
OSSL_ENCODER_CTX_free(ctx); \
return ret
# define IMPLEMENT_PEM_provided_write_body_fallback(str, asn1, \
writename) \
legacy: \
return PEM_ASN1_##writename((i2d_of_void *)i2d_##asn1, str, out, \
x, NULL, NULL, 0, NULL, NULL)
# define IMPLEMENT_PEM_provided_write_body_fallback_cb(str, asn1, \
writename) \
legacy: \
return PEM_ASN1_##writename((i2d_of_void *)i2d_##asn1, str, out, \
x, enc, kstr, klen, cb, u)
# define IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, \
OUTTYPE, outtype, writename) \
PEM_write_fnsig(name, type, OUTTYPE, writename) \
{ \
IMPLEMENT_PEM_provided_write_body_vars(type, asn1); \
IMPLEMENT_PEM_provided_write_body_main(type, outtype); \
IMPLEMENT_PEM_provided_write_body_fallback(str, asn1, \
writename); \
}
# define IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, \
OUTTYPE, outtype, writename) \
PEM_write_cb_fnsig(name, type, OUTTYPE, writename) \
{ \
IMPLEMENT_PEM_provided_write_body_vars(type, asn1); \
IMPLEMENT_PEM_provided_write_body_pass(); \
IMPLEMENT_PEM_provided_write_body_main(type, outtype); \
IMPLEMENT_PEM_provided_write_body_fallback_cb(str, asn1, \
writename); \
}
# ifdef OPENSSL_NO_STDIO
# define IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1)
# else
# define IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, FILE, fp, write)
# define IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, FILE, fp, write)
# endif
# define IMPLEMENT_PEM_provided_write_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, BIO, bio, write_bio)
# define IMPLEMENT_PEM_provided_write_cb_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, BIO, bio, write_bio)
# define IMPLEMENT_PEM_provided_write(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_write_cb(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_rw(name, type, str, asn1) \
IMPLEMENT_PEM_read(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_rw_cb(name, type, str, asn1) \
IMPLEMENT_PEM_read(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb(name, type, str, asn1)
|
