2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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
10 #ifndef OPENSSL_ENCODER_H
11 # define OPENSSL_ENCODER_H
14 # include <openssl/opensslconf.h>
16 # ifndef OPENSSL_NO_STDIO
21 # include <openssl/encodererr.h>
22 # include <openssl/types.h>
23 # include <openssl/core.h>
29 OSSL_ENCODER
*OSSL_ENCODER_fetch(OSSL_LIB_CTX
*libctx
, const char *name
,
30 const char *properties
);
31 int OSSL_ENCODER_up_ref(OSSL_ENCODER
*encoder
);
32 void OSSL_ENCODER_free(OSSL_ENCODER
*encoder
);
34 const OSSL_PROVIDER
*OSSL_ENCODER_provider(const OSSL_ENCODER
*encoder
);
35 const char *OSSL_ENCODER_properties(const OSSL_ENCODER
*encoder
);
36 int OSSL_ENCODER_number(const OSSL_ENCODER
*encoder
);
37 int OSSL_ENCODER_is_a(const OSSL_ENCODER
*encoder
, const char *name
);
39 void OSSL_ENCODER_do_all_provided(OSSL_LIB_CTX
*libctx
,
40 void (*fn
)(OSSL_ENCODER
*encoder
, void *arg
),
42 int OSSL_ENCODER_names_do_all(const OSSL_ENCODER
*encoder
,
43 void (*fn
)(const char *name
, void *data
),
45 const OSSL_PARAM
*OSSL_ENCODER_gettable_params(OSSL_ENCODER
*encoder
);
46 int OSSL_ENCODER_get_params(OSSL_ENCODER
*encoder
, OSSL_PARAM params
[]);
48 const OSSL_PARAM
*OSSL_ENCODER_settable_ctx_params(OSSL_ENCODER
*encoder
);
49 OSSL_ENCODER_CTX
*OSSL_ENCODER_CTX_new(void);
50 int OSSL_ENCODER_CTX_set_params(OSSL_ENCODER_CTX
*ctx
,
51 const OSSL_PARAM params
[]);
52 void OSSL_ENCODER_CTX_free(OSSL_ENCODER_CTX
*ctx
);
54 /* Utilities that help set specific parameters */
55 int OSSL_ENCODER_CTX_set_passphrase(OSSL_ENCODER_CTX
*ctx
,
56 const unsigned char *kstr
, size_t klen
);
57 int OSSL_ENCODER_CTX_set_pem_password_cb(OSSL_ENCODER_CTX
*ctx
,
58 pem_password_cb
*cb
, void *cbarg
);
59 int OSSL_ENCODER_CTX_set_passphrase_cb(OSSL_ENCODER_CTX
*ctx
,
60 OSSL_PASSPHRASE_CALLBACK
*cb
,
62 int OSSL_ENCODER_CTX_set_passphrase_ui(OSSL_ENCODER_CTX
*ctx
,
63 const UI_METHOD
*ui_method
,
65 int OSSL_ENCODER_CTX_set_cipher(OSSL_ENCODER_CTX
*ctx
,
66 const char *cipher_name
,
67 const char *propquery
);
68 int OSSL_ENCODER_CTX_set_selection(OSSL_ENCODER_CTX
*ctx
, int selection
);
69 int OSSL_ENCODER_CTX_set_output_type(OSSL_ENCODER_CTX
*ctx
,
70 const char *output_type
);
71 int OSSL_ENCODER_CTX_set_output_structure(OSSL_ENCODER_CTX
*ctx
,
72 const char *output_structure
);
74 /* Utilities to add encoders */
75 int OSSL_ENCODER_CTX_add_encoder(OSSL_ENCODER_CTX
*ctx
, OSSL_ENCODER
*encoder
);
76 int OSSL_ENCODER_CTX_add_extra(OSSL_ENCODER_CTX
*ctx
,
77 OSSL_LIB_CTX
*libctx
, const char *propq
);
78 int OSSL_ENCODER_CTX_get_num_encoders(OSSL_ENCODER_CTX
*ctx
);
80 typedef struct ossl_encoder_instance_st OSSL_ENCODER_INSTANCE
;
82 OSSL_ENCODER_INSTANCE_get_encoder(OSSL_ENCODER_INSTANCE
*encoder_inst
);
84 OSSL_ENCODER_INSTANCE_get_encoder_ctx(OSSL_ENCODER_INSTANCE
*encoder_inst
);
86 OSSL_ENCODER_INSTANCE_get_input_type(OSSL_ENCODER_INSTANCE
*encoder_inst
);
88 OSSL_ENCODER_INSTANCE_get_output_type(OSSL_ENCODER_INSTANCE
*encoder_inst
);
90 OSSL_ENCODER_INSTANCE_get_output_structure(OSSL_ENCODER_INSTANCE
*encoder_inst
);
92 typedef const void *OSSL_ENCODER_CONSTRUCT(OSSL_ENCODER_INSTANCE
*encoder_inst
,
93 void *construct_data
);
94 typedef void OSSL_ENCODER_CLEANUP(void *construct_data
);
96 int OSSL_ENCODER_CTX_set_construct(OSSL_ENCODER_CTX
*ctx
,
97 OSSL_ENCODER_CONSTRUCT
*construct
);
98 int OSSL_ENCODER_CTX_set_construct_data(OSSL_ENCODER_CTX
*ctx
,
99 void *construct_data
);
100 int OSSL_ENCODER_CTX_set_cleanup(OSSL_ENCODER_CTX
*ctx
,
101 OSSL_ENCODER_CLEANUP
*cleanup
);
103 /* Utilities to output the object to encode */
104 int OSSL_ENCODER_to_bio(OSSL_ENCODER_CTX
*ctx
, BIO
*out
);
105 #ifndef OPENSSL_NO_STDIO
106 int OSSL_ENCODER_to_fp(OSSL_ENCODER_CTX
*ctx
, FILE *fp
);
108 int OSSL_ENCODER_to_data(OSSL_ENCODER_CTX
*ctx
, unsigned char **pdata
,
112 * Create the OSSL_ENCODER_CTX with an associated type. This will perform
113 * an implicit OSSL_ENCODER_fetch(), suitable for the object of that type.
114 * This is more useful than calling OSSL_ENCODER_CTX_new().
116 OSSL_ENCODER_CTX
*OSSL_ENCODER_CTX_new_for_pkey(const EVP_PKEY
*pkey
,
118 const char *output_type
,
119 const char *output_struct
,
120 const char *propquery
);