include/openssl/core_dispatch.h

   1 /*
   2  * Copyright 2019-2021 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 #ifndef OPENSSL_CORE_NUMBERS_H
  11 # define OPENSSL_CORE_NUMBERS_H
  12 # pragma once
  13
  14 # include <stdarg.h>
  15 # include <openssl/core.h>
  16
  17 # ifdef __cplusplus
  18 extern "C" {
  19 # endif
  20
  21 /*-
  22  * Identities
  23  * ----------
  24  *
  25  * All series start with 1, to allow 0 to be an array terminator.
  26  * For any FUNC identity, we also provide a function signature typedef
  27  * and a static inline function to extract a function pointer from a
  28  * OSSL_DISPATCH element in a type safe manner.
  29  *
  30  * Names:
  31  * for any function base name 'foo' (uppercase form 'FOO'), we will have
  32  * the following:
  33  * - a macro for the identity with the name OSSL_FUNC_'FOO' or derivatives
  34  *   thereof (to be specified further down)
  35  * - a function signature typedef with the name OSSL_FUNC_'foo'_fn
  36  * - a function pointer extractor function with the name OSSL_FUNC_'foo'
  37  */
  38
  39 /*
  40  * Helper macro to create the function signature typedef and the extractor
  41  * |type| is the return-type of the function, |name| is the name of the
  42  * function to fetch, and |args| is a parenthesized list of parameters
  43  * for the function (that is, it is |name|'s function signature).
  44  * Note: This is considered a "reserved" internal macro. Applications should
  45  * not use this or assume its existence.
  46  */
  47 #define OSSL_CORE_MAKE_FUNC(type,name,args)                             \
  48     typedef type (OSSL_FUNC_##name##_fn)args;                           \
  49     static ossl_unused ossl_inline \
  50     OSSL_FUNC_##name##_fn *OSSL_FUNC_##name(const OSSL_DISPATCH *opf)   \
  51     {                                                                   \
  52         return (OSSL_FUNC_##name##_fn *)opf->function;                  \
  53     }
  54
  55 /*
  56  * Core function identities, for the two OSSL_DISPATCH tables being passed
  57  * in the OSSL_provider_init call.
  58  *
  59  * 0 serves as a marker for the end of the OSSL_DISPATCH array, and must
  60  * therefore NEVER be used as a function identity.
  61  */
  62 /* Functions provided by the Core to the provider, reserved numbers 1-1023 */
  63 # define OSSL_FUNC_CORE_GETTABLE_PARAMS        1
  64 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,
  65                     core_gettable_params,(const OSSL_CORE_HANDLE *prov))
  66 # define OSSL_FUNC_CORE_GET_PARAMS             2
  67 OSSL_CORE_MAKE_FUNC(int,core_get_params,(const OSSL_CORE_HANDLE *prov,
  68                                          OSSL_PARAM params[]))
  69 # define OSSL_FUNC_CORE_THREAD_START           3
  70 OSSL_CORE_MAKE_FUNC(int,core_thread_start,(const OSSL_CORE_HANDLE *prov,
  71                                            OSSL_thread_stop_handler_fn handfn))
  72 # define OSSL_FUNC_CORE_GET_LIBCTX             4
  73 OSSL_CORE_MAKE_FUNC(OPENSSL_CORE_CTX *,core_get_libctx,
  74                     (const OSSL_CORE_HANDLE *prov))
  75 # define OSSL_FUNC_CORE_NEW_ERROR              5
  76 OSSL_CORE_MAKE_FUNC(void,core_new_error,(const OSSL_CORE_HANDLE *prov))
  77 # define OSSL_FUNC_CORE_SET_ERROR_DEBUG        6
  78 OSSL_CORE_MAKE_FUNC(void,core_set_error_debug,
  79                     (const OSSL_CORE_HANDLE *prov,
  80                      const char *file, int line, const char *func))
  81 # define OSSL_FUNC_CORE_VSET_ERROR             7
  82 OSSL_CORE_MAKE_FUNC(void,core_vset_error,
  83                     (const OSSL_CORE_HANDLE *prov,
  84                      uint32_t reason, const char *fmt, va_list args))
  85 # define OSSL_FUNC_CORE_SET_ERROR_MARK         8
  86 OSSL_CORE_MAKE_FUNC(int, core_set_error_mark, (const OSSL_CORE_HANDLE *prov))
  87 # define OSSL_FUNC_CORE_CLEAR_LAST_ERROR_MARK  9
  88 OSSL_CORE_MAKE_FUNC(int, core_clear_last_error_mark,
  89                     (const OSSL_CORE_HANDLE *prov))
  90 # define OSSL_FUNC_CORE_POP_ERROR_TO_MARK     10
  91 OSSL_CORE_MAKE_FUNC(int, core_pop_error_to_mark, (const OSSL_CORE_HANDLE *prov))
  92
  93 /* Memory allocation, freeing, clearing. */
  94 #define OSSL_FUNC_CRYPTO_MALLOC               20
  95 OSSL_CORE_MAKE_FUNC(void *,
  96         CRYPTO_malloc, (size_t num, const char *file, int line))
  97 #define OSSL_FUNC_CRYPTO_ZALLOC               21
  98 OSSL_CORE_MAKE_FUNC(void *,
  99         CRYPTO_zalloc, (size_t num, const char *file, int line))
 100 #define OSSL_FUNC_CRYPTO_FREE                 22
 101 OSSL_CORE_MAKE_FUNC(void,
 102         CRYPTO_free, (void *ptr, const char *file, int line))
 103 #define OSSL_FUNC_CRYPTO_CLEAR_FREE           23
 104 OSSL_CORE_MAKE_FUNC(void,
 105         CRYPTO_clear_free, (void *ptr, size_t num, const char *file, int line))
 106 #define OSSL_FUNC_CRYPTO_REALLOC              24
 107 OSSL_CORE_MAKE_FUNC(void *,
 108         CRYPTO_realloc, (void *addr, size_t num, const char *file, int line))
 109 #define OSSL_FUNC_CRYPTO_CLEAR_REALLOC        25
 110 OSSL_CORE_MAKE_FUNC(void *,
 111         CRYPTO_clear_realloc, (void *addr, size_t old_num, size_t num,
 112                                const char *file, int line))
 113 #define OSSL_FUNC_CRYPTO_SECURE_MALLOC        26
 114 OSSL_CORE_MAKE_FUNC(void *,
 115         CRYPTO_secure_malloc, (size_t num, const char *file, int line))
 116 #define OSSL_FUNC_CRYPTO_SECURE_ZALLOC        27
 117 OSSL_CORE_MAKE_FUNC(void *,
 118         CRYPTO_secure_zalloc, (size_t num, const char *file, int line))
 119 #define OSSL_FUNC_CRYPTO_SECURE_FREE          28
 120 OSSL_CORE_MAKE_FUNC(void,
 121         CRYPTO_secure_free, (void *ptr, const char *file, int line))
 122 #define OSSL_FUNC_CRYPTO_SECURE_CLEAR_FREE    29
 123 OSSL_CORE_MAKE_FUNC(void,
 124         CRYPTO_secure_clear_free, (void *ptr, size_t num, const char *file,
 125                                    int line))
 126 #define OSSL_FUNC_CRYPTO_SECURE_ALLOCATED     30
 127 OSSL_CORE_MAKE_FUNC(int,
 128         CRYPTO_secure_allocated, (const void *ptr))
 129 #define OSSL_FUNC_OPENSSL_CLEANSE             31
 130 OSSL_CORE_MAKE_FUNC(void,
 131         OPENSSL_cleanse, (void *ptr, size_t len))
 132
 133 /* Bio functions provided by the core */
 134 #define OSSL_FUNC_BIO_NEW_FILE                40
 135 #define OSSL_FUNC_BIO_NEW_MEMBUF              41
 136 #define OSSL_FUNC_BIO_READ_EX                 42
 137 #define OSSL_FUNC_BIO_WRITE_EX                43
 138 #define OSSL_FUNC_BIO_FREE                    44
 139 #define OSSL_FUNC_BIO_VPRINTF                 45
 140 #define OSSL_FUNC_BIO_VSNPRINTF               46
 141 #define OSSL_FUNC_BIO_PUTS                    47
 142 #define OSSL_FUNC_BIO_GETS                    48
 143 #define OSSL_FUNC_BIO_CTRL                    49
 144
 145
 146 OSSL_CORE_MAKE_FUNC(OSSL_CORE_BIO *, BIO_new_file, (const char *filename,
 147                                                     const char *mode))
 148 OSSL_CORE_MAKE_FUNC(OSSL_CORE_BIO *, BIO_new_membuf, (const void *buf, int len))
 149 OSSL_CORE_MAKE_FUNC(int, BIO_read_ex, (OSSL_CORE_BIO *bio, void *data,
 150                                        size_t data_len, size_t *bytes_read))
 151 OSSL_CORE_MAKE_FUNC(int, BIO_write_ex, (OSSL_CORE_BIO *bio, const void *data,
 152                                         size_t data_len, size_t *written))
 153 OSSL_CORE_MAKE_FUNC(int, BIO_gets, (OSSL_CORE_BIO *bio, char *buf, int size))
 154 OSSL_CORE_MAKE_FUNC(int, BIO_puts, (OSSL_CORE_BIO *bio, const char *str))
 155 OSSL_CORE_MAKE_FUNC(int, BIO_free, (OSSL_CORE_BIO *bio))
 156 OSSL_CORE_MAKE_FUNC(int, BIO_vprintf, (OSSL_CORE_BIO *bio, const char *format,
 157                                        va_list args))
 158 OSSL_CORE_MAKE_FUNC(int, BIO_vsnprintf,
 159                    (char *buf, size_t n, const char *fmt, va_list args))
 160 OSSL_CORE_MAKE_FUNC(int, BIO_ctrl, (OSSL_CORE_BIO *bio,
 161                                     int cmd, long num, void *ptr))
 162
 163 #define OSSL_FUNC_SELF_TEST_CB               100
 164 OSSL_CORE_MAKE_FUNC(void, self_test_cb, (OPENSSL_CORE_CTX *ctx, OSSL_CALLBACK **cb,
 165                                          void **cbarg))
 166
 167 /* Functions to get seed material from the operating system */
 168 #define OSSL_FUNC_GET_ENTROPY                101
 169 #define OSSL_FUNC_CLEANUP_ENTROPY            102
 170 #define OSSL_FUNC_GET_NONCE                  103
 171 #define OSSL_FUNC_CLEANUP_NONCE              104
 172 OSSL_CORE_MAKE_FUNC(size_t, get_entropy, (const OSSL_CORE_HANDLE *handle,
 173                                           unsigned char **pout, int entropy,
 174                                           size_t min_len, size_t max_len))
 175 OSSL_CORE_MAKE_FUNC(void, cleanup_entropy, (const OSSL_CORE_HANDLE *handle,
 176                                             unsigned char *buf, size_t len))
 177 OSSL_CORE_MAKE_FUNC(size_t, get_nonce, (const OSSL_CORE_HANDLE *handle,
 178                                         unsigned char **pout, size_t min_len,
 179                                         size_t max_len, const void *salt,
 180                                         size_t salt_len))
 181 OSSL_CORE_MAKE_FUNC(void, cleanup_nonce, (const OSSL_CORE_HANDLE *handle,
 182                                           unsigned char *buf, size_t len))
 183
 184 /* Functions provided by the provider to the Core, reserved numbers 1024-1535 */
 185 # define OSSL_FUNC_PROVIDER_TEARDOWN           1024
 186 OSSL_CORE_MAKE_FUNC(void,provider_teardown,(void *provctx))
 187 # define OSSL_FUNC_PROVIDER_GETTABLE_PARAMS    1025
 188 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,
 189                     provider_gettable_params,(void *provctx))
 190 # define OSSL_FUNC_PROVIDER_GET_PARAMS         1026
 191 OSSL_CORE_MAKE_FUNC(int,provider_get_params,(void *provctx,
 192                                              OSSL_PARAM params[]))
 193 # define OSSL_FUNC_PROVIDER_QUERY_OPERATION    1027
 194 OSSL_CORE_MAKE_FUNC(const OSSL_ALGORITHM *,provider_query_operation,
 195                     (void *provctx, int operation_id, int *no_store))
 196 # define OSSL_FUNC_PROVIDER_UNQUERY_OPERATION  1028
 197 OSSL_CORE_MAKE_FUNC(void, provider_unquery_operation,
 198                     (void *provctx, int operation_id, const OSSL_ALGORITHM *))
 199 # define OSSL_FUNC_PROVIDER_GET_REASON_STRINGS 1029
 200 OSSL_CORE_MAKE_FUNC(const OSSL_ITEM *,provider_get_reason_strings,
 201                     (void *provctx))
 202 # define OSSL_FUNC_PROVIDER_GET_CAPABILITIES   1030
 203 OSSL_CORE_MAKE_FUNC(int, provider_get_capabilities, (void *provctx,
 204                     const char *capability, OSSL_CALLBACK *cb, void *arg))
 205 # define OSSL_FUNC_PROVIDER_SELF_TEST          1031
 206 OSSL_CORE_MAKE_FUNC(int, provider_self_test, (void *provctx))
 207
 208 /* Operations */
 209
 210 # define OSSL_OP_DIGEST                              1
 211 # define OSSL_OP_CIPHER                              2   /* Symmetric Ciphers */
 212 # define OSSL_OP_MAC                                 3
 213 # define OSSL_OP_KDF                                 4
 214 # define OSSL_OP_RAND                                5
 215 # define OSSL_OP_KEYMGMT                            10
 216 # define OSSL_OP_KEYEXCH                            11
 217 # define OSSL_OP_SIGNATURE                          12
 218 # define OSSL_OP_ASYM_CIPHER                        13
 219 # define OSSL_OP_KEM                                14
 220 /* New section for non-EVP operations */
 221 # define OSSL_OP_ENCODER                            20
 222 # define OSSL_OP_DECODER                            21
 223 # define OSSL_OP_STORE                              22
 224 /* Highest known operation number */
 225 # define OSSL_OP__HIGHEST                           22
 226
 227 /* Digests */
 228
 229 # define OSSL_FUNC_DIGEST_NEWCTX                     1
 230 # define OSSL_FUNC_DIGEST_INIT                       2
 231 # define OSSL_FUNC_DIGEST_UPDATE                     3
 232 # define OSSL_FUNC_DIGEST_FINAL                      4
 233 # define OSSL_FUNC_DIGEST_DIGEST                     5
 234 # define OSSL_FUNC_DIGEST_FREECTX                    6
 235 # define OSSL_FUNC_DIGEST_DUPCTX                     7
 236 # define OSSL_FUNC_DIGEST_GET_PARAMS                 8
 237 # define OSSL_FUNC_DIGEST_SET_CTX_PARAMS             9
 238 # define OSSL_FUNC_DIGEST_GET_CTX_PARAMS            10
 239 # define OSSL_FUNC_DIGEST_GETTABLE_PARAMS           11
 240 # define OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS       12
 241 # define OSSL_FUNC_DIGEST_GETTABLE_CTX_PARAMS       13
 242
 243 OSSL_CORE_MAKE_FUNC(void *, digest_newctx, (void *provctx))
 244 OSSL_CORE_MAKE_FUNC(int, digest_init, (void *dctx))
 245 OSSL_CORE_MAKE_FUNC(int, digest_update,
 246                     (void *dctx, const unsigned char *in, size_t inl))
 247 OSSL_CORE_MAKE_FUNC(int, digest_final,
 248                     (void *dctx,
 249                      unsigned char *out, size_t *outl, size_t outsz))
 250 OSSL_CORE_MAKE_FUNC(int, digest_digest,
 251                     (void *provctx, const unsigned char *in, size_t inl,
 252                      unsigned char *out, size_t *outl, size_t outsz))
 253
 254 OSSL_CORE_MAKE_FUNC(void, digest_freectx, (void *dctx))
 255 OSSL_CORE_MAKE_FUNC(void *, digest_dupctx, (void *dctx))
 256
 257 OSSL_CORE_MAKE_FUNC(int, digest_get_params, (OSSL_PARAM params[]))
 258 OSSL_CORE_MAKE_FUNC(int, digest_set_ctx_params,
 259                     (void *vctx, const OSSL_PARAM params[]))
 260 OSSL_CORE_MAKE_FUNC(int, digest_get_ctx_params,
 261                     (void *vctx, OSSL_PARAM params[]))
 262 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, digest_gettable_params,
 263                     (void *provctx))
 264 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, digest_settable_ctx_params,
 265                     (void *dctx, void *provctx))
 266 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, digest_gettable_ctx_params,
 267                     (void *dctx, void *provctx))
 268
 269 /* Symmetric Ciphers */
 270
 271 # define OSSL_FUNC_CIPHER_NEWCTX                     1
 272 # define OSSL_FUNC_CIPHER_ENCRYPT_INIT               2
 273 # define OSSL_FUNC_CIPHER_DECRYPT_INIT               3
 274 # define OSSL_FUNC_CIPHER_UPDATE                     4
 275 # define OSSL_FUNC_CIPHER_FINAL                      5
 276 # define OSSL_FUNC_CIPHER_CIPHER                     6
 277 # define OSSL_FUNC_CIPHER_FREECTX                    7
 278 # define OSSL_FUNC_CIPHER_DUPCTX                     8
 279 # define OSSL_FUNC_CIPHER_GET_PARAMS                 9
 280 # define OSSL_FUNC_CIPHER_GET_CTX_PARAMS            10
 281 # define OSSL_FUNC_CIPHER_SET_CTX_PARAMS            11
 282 # define OSSL_FUNC_CIPHER_GETTABLE_PARAMS           12
 283 # define OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS       13
 284 # define OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS       14
 285
 286 OSSL_CORE_MAKE_FUNC(void *, cipher_newctx, (void *provctx))
 287 OSSL_CORE_MAKE_FUNC(int, cipher_encrypt_init, (void *cctx,
 288                                                   const unsigned char *key,
 289                                                   size_t keylen,
 290                                                   const unsigned char *iv,
 291                                                   size_t ivlen))
 292 OSSL_CORE_MAKE_FUNC(int, cipher_decrypt_init, (void *cctx,
 293                                                   const unsigned char *key,
 294                                                   size_t keylen,
 295                                                   const unsigned char *iv,
 296                                                   size_t ivlen))
 297 OSSL_CORE_MAKE_FUNC(int, cipher_update,
 298                     (void *cctx,
 299                      unsigned char *out, size_t *outl, size_t outsize,
 300                      const unsigned char *in, size_t inl))
 301 OSSL_CORE_MAKE_FUNC(int, cipher_final,
 302                     (void *cctx,
 303                      unsigned char *out, size_t *outl, size_t outsize))
 304 OSSL_CORE_MAKE_FUNC(int, cipher_cipher,
 305                     (void *cctx,
 306                      unsigned char *out, size_t *outl, size_t outsize,
 307                      const unsigned char *in, size_t inl))
 308 OSSL_CORE_MAKE_FUNC(void, cipher_freectx, (void *cctx))
 309 OSSL_CORE_MAKE_FUNC(void *, cipher_dupctx, (void *cctx))
 310 OSSL_CORE_MAKE_FUNC(int, cipher_get_params, (OSSL_PARAM params[]))
 311 OSSL_CORE_MAKE_FUNC(int, cipher_get_ctx_params, (void *cctx,
 312                                                     OSSL_PARAM params[]))
 313 OSSL_CORE_MAKE_FUNC(int, cipher_set_ctx_params, (void *cctx,
 314                                                     const OSSL_PARAM params[]))
 315 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, cipher_gettable_params,
 316                     (void *provctx))
 317 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, cipher_settable_ctx_params,
 318                     (void *provctx))
 319 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, cipher_gettable_ctx_params,
 320                     (void *provctx))
 321
 322 /* MACs */
 323
 324 # define OSSL_FUNC_MAC_NEWCTX                        1
 325 # define OSSL_FUNC_MAC_DUPCTX                        2
 326 # define OSSL_FUNC_MAC_FREECTX                       3
 327 # define OSSL_FUNC_MAC_INIT                          4
 328 # define OSSL_FUNC_MAC_UPDATE                        5
 329 # define OSSL_FUNC_MAC_FINAL                         6
 330 # define OSSL_FUNC_MAC_GET_PARAMS                    7
 331 # define OSSL_FUNC_MAC_GET_CTX_PARAMS                8
 332 # define OSSL_FUNC_MAC_SET_CTX_PARAMS                9
 333 # define OSSL_FUNC_MAC_GETTABLE_PARAMS              10
 334 # define OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS          11
 335 # define OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS          12
 336
 337 OSSL_CORE_MAKE_FUNC(void *, mac_newctx, (void *provctx))
 338 OSSL_CORE_MAKE_FUNC(void *, mac_dupctx, (void *src))
 339 OSSL_CORE_MAKE_FUNC(void, mac_freectx, (void *mctx))
 340 OSSL_CORE_MAKE_FUNC(int, mac_init, (void *mctx))
 341 OSSL_CORE_MAKE_FUNC(int, mac_update,
 342                     (void *mctx, const unsigned char *in, size_t inl))
 343 OSSL_CORE_MAKE_FUNC(int, mac_final,
 344                     (void *mctx,
 345                      unsigned char *out, size_t *outl, size_t outsize))
 346 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, mac_gettable_params, (void *provctx))
 347 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, mac_gettable_ctx_params,
 348                     (void *provctx))
 349 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, mac_settable_ctx_params,
 350                     (void *provctx))
 351 OSSL_CORE_MAKE_FUNC(int, mac_get_params, (OSSL_PARAM params[]))
 352 OSSL_CORE_MAKE_FUNC(int, mac_get_ctx_params,
 353                     (void *mctx, OSSL_PARAM params[]))
 354 OSSL_CORE_MAKE_FUNC(int, mac_set_ctx_params,
 355                     (void *mctx, const OSSL_PARAM params[]))
 356
 357 /* KDFs and PRFs */
 358
 359 # define OSSL_FUNC_KDF_NEWCTX                        1
 360 # define OSSL_FUNC_KDF_DUPCTX                        2
 361 # define OSSL_FUNC_KDF_FREECTX                       3
 362 # define OSSL_FUNC_KDF_RESET                         4
 363 # define OSSL_FUNC_KDF_DERIVE                        5
 364 # define OSSL_FUNC_KDF_GETTABLE_PARAMS               6
 365 # define OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS           7
 366 # define OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS           8
 367 # define OSSL_FUNC_KDF_GET_PARAMS                    9
 368 # define OSSL_FUNC_KDF_GET_CTX_PARAMS               10
 369 # define OSSL_FUNC_KDF_SET_CTX_PARAMS               11
 370
 371 OSSL_CORE_MAKE_FUNC(void *, kdf_newctx, (void *provctx))
 372 OSSL_CORE_MAKE_FUNC(void *, kdf_dupctx, (void *src))
 373 OSSL_CORE_MAKE_FUNC(void, kdf_freectx, (void *kctx))
 374 OSSL_CORE_MAKE_FUNC(void, kdf_reset, (void *kctx))
 375 OSSL_CORE_MAKE_FUNC(int, kdf_derive, (void *kctx, unsigned char *key,
 376                                           size_t keylen))
 377 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, kdf_gettable_params, (void *provctx))
 378 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, kdf_gettable_ctx_params,
 379                     (void *provctx))
 380 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, kdf_settable_ctx_params,
 381                     (void *provctx))
 382 OSSL_CORE_MAKE_FUNC(int, kdf_get_params, (OSSL_PARAM params[]))
 383 OSSL_CORE_MAKE_FUNC(int, kdf_get_ctx_params,
 384                     (void *kctx, OSSL_PARAM params[]))
 385 OSSL_CORE_MAKE_FUNC(int, kdf_set_ctx_params,
 386                     (void *kctx, const OSSL_PARAM params[]))
 387
 388 /* RAND */
 389
 390 # define OSSL_FUNC_RAND_NEWCTX                        1
 391 # define OSSL_FUNC_RAND_FREECTX                       2
 392 # define OSSL_FUNC_RAND_INSTANTIATE                   3
 393 # define OSSL_FUNC_RAND_UNINSTANTIATE                 4
 394 # define OSSL_FUNC_RAND_GENERATE                      5
 395 # define OSSL_FUNC_RAND_RESEED                        6
 396 # define OSSL_FUNC_RAND_NONCE                         7
 397 # define OSSL_FUNC_RAND_ENABLE_LOCKING                8
 398 # define OSSL_FUNC_RAND_LOCK                          9
 399 # define OSSL_FUNC_RAND_UNLOCK                       10
 400 # define OSSL_FUNC_RAND_GETTABLE_PARAMS              11
 401 # define OSSL_FUNC_RAND_GETTABLE_CTX_PARAMS          12
 402 # define OSSL_FUNC_RAND_SETTABLE_CTX_PARAMS          13
 403 # define OSSL_FUNC_RAND_GET_PARAMS                   14
 404 # define OSSL_FUNC_RAND_GET_CTX_PARAMS               15
 405 # define OSSL_FUNC_RAND_SET_CTX_PARAMS               16
 406 # define OSSL_FUNC_RAND_VERIFY_ZEROIZATION           17
 407 # define OSSL_FUNC_RAND_GET_SEED                     18
 408 # define OSSL_FUNC_RAND_CLEAR_SEED                   19
 409
 410 OSSL_CORE_MAKE_FUNC(void *,rand_newctx,
 411                     (void *provctx, void *parent,
 412                     const OSSL_DISPATCH *parent_calls))
 413 OSSL_CORE_MAKE_FUNC(void,rand_freectx, (void *vctx))
 414 OSSL_CORE_MAKE_FUNC(int,rand_instantiate,
 415                     (void *vdrbg, unsigned int strength,
 416                      int prediction_resistance,
 417                      const unsigned char *pstr, size_t pstr_len))
 418 OSSL_CORE_MAKE_FUNC(int,rand_uninstantiate, (void *vdrbg))
 419 OSSL_CORE_MAKE_FUNC(int,rand_generate,
 420                     (void *vctx, unsigned char *out, size_t outlen,
 421                      unsigned int strength, int prediction_resistance,
 422                      const unsigned char *addin, size_t addin_len))
 423 OSSL_CORE_MAKE_FUNC(int,rand_reseed,
 424                     (void *vctx, int prediction_resistance,
 425                      const unsigned char *ent, size_t ent_len,
 426                      const unsigned char *addin, size_t addin_len))
 427 OSSL_CORE_MAKE_FUNC(size_t,rand_nonce,
 428                     (void *vctx, unsigned char *out, unsigned int strength,
 429                      size_t min_noncelen, size_t max_noncelen))
 430 OSSL_CORE_MAKE_FUNC(int,rand_enable_locking, (void *vctx))
 431 OSSL_CORE_MAKE_FUNC(int,rand_lock, (void *vctx))
 432 OSSL_CORE_MAKE_FUNC(void,rand_unlock, (void *vctx))
 433 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,rand_gettable_params, (void *provctx))
 434 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,rand_gettable_ctx_params,
 435                     (void *vctx, void *provctx))
 436 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,rand_settable_ctx_params,
 437                     (void *vctx, void *provctx))
 438 OSSL_CORE_MAKE_FUNC(int,rand_get_params, (OSSL_PARAM params[]))
 439 OSSL_CORE_MAKE_FUNC(int,rand_get_ctx_params,
 440                     (void *vctx, OSSL_PARAM params[]))
 441 OSSL_CORE_MAKE_FUNC(int,rand_set_ctx_params,
 442                     (void *vctx, const OSSL_PARAM params[]))
 443 OSSL_CORE_MAKE_FUNC(void,rand_set_callbacks,
 444                     (void *vctx, OSSL_INOUT_CALLBACK *get_entropy,
 445                      OSSL_CALLBACK *cleanup_entropy,
 446                      OSSL_INOUT_CALLBACK *get_nonce,
 447                      OSSL_CALLBACK *cleanup_nonce, void *arg))
 448 OSSL_CORE_MAKE_FUNC(int,rand_verify_zeroization,
 449                     (void *vctx))
 450 OSSL_CORE_MAKE_FUNC(size_t,rand_get_seed,
 451                     (void *vctx, unsigned char **buffer,
 452                      int entropy, size_t min_len, size_t max_len,
 453                      int prediction_resistance,
 454                      const unsigned char *adin, size_t adin_len))
 455 OSSL_CORE_MAKE_FUNC(void,rand_clear_seed,
 456                     (void *vctx, unsigned char *buffer, size_t b_len))
 457
 458 /*-
 459  * Key management
 460  *
 461  * The Key Management takes care of provider side key objects, and includes
 462  * all current functionality to create them, destroy them, set parameters
 463  * and key material, etc, essentially everything that manipulates the keys
 464  * themselves and their parameters.
 465  *
 466  * The key objects are commonly refered to as |keydata|, and it MUST be able
 467  * to contain parameters if the key has any, the public key and the private
 468  * key.  All parts are optional, but their presence determines what can be
 469  * done with the key object in terms of encryption, signature, and so on.
 470  * The assumption from libcrypto is that the key object contains any of the
 471  * following data combinations:
 472  *
 473  * - parameters only
 474  * - public key only
 475  * - public key + private key
 476  * - parameters + public key
 477  * - parameters + public key + private key
 478  *
 479  * What "parameters", "public key" and "private key" means in detail is left
 480  * to the implementation.  In the case of DH and DSA, they would typically
 481  * include domain parameters, while for certain variants of RSA, they would
 482  * typically include PSS or OAEP parameters.
 483  *
 484  * Key objects are created with OSSL_FUNC_keymgmt_new() and destroyed with
 485  * OSSL_FUNC_keymgmt_free().  Key objects can have data filled in with
 486  * OSSL_FUNC_keymgmt_import().
 487  *
 488  * Three functions are made available to check what selection of data is
 489  * present in a key object: OSSL_FUNC_keymgmt_has_parameters(),
 490  * OSSL_FUNC_keymgmt_has_public_key(), and OSSL_FUNC_keymgmt_has_private_key(),
 491  */
 492
 493 /* Key data subset selection - individual bits */
 494 # define OSSL_KEYMGMT_SELECT_PRIVATE_KEY            0x01
 495 # define OSSL_KEYMGMT_SELECT_PUBLIC_KEY             0x02
 496 # define OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS      0x04
 497 # define OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS       0x80
 498
 499 /* Key data subset selection - combinations */
 500 # define OSSL_KEYMGMT_SELECT_ALL_PARAMETERS     \
 501     ( OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS     \
 502       | OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS)
 503 # define OSSL_KEYMGMT_SELECT_KEYPAIR            \
 504     ( OSSL_KEYMGMT_SELECT_PRIVATE_KEY | OSSL_KEYMGMT_SELECT_PUBLIC_KEY )
 505 # define OSSL_KEYMGMT_SELECT_ALL                \
 506     ( OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS )
 507
 508 # define OSSL_KEYMGMT_VALIDATE_FULL_CHECK              0
 509 # define OSSL_KEYMGMT_VALIDATE_QUICK_CHECK             1
 510
 511 /* Basic key object creation */
 512 # define OSSL_FUNC_KEYMGMT_NEW                         1
 513 OSSL_CORE_MAKE_FUNC(void *, keymgmt_new, (void *provctx))
 514
 515 /* Generation, a more complex constructor */
 516 # define OSSL_FUNC_KEYMGMT_GEN_INIT                    2
 517 # define OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE            3
 518 # define OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS              4
 519 # define OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS         5
 520 # define OSSL_FUNC_KEYMGMT_GEN                         6
 521 # define OSSL_FUNC_KEYMGMT_GEN_CLEANUP                 7
 522 OSSL_CORE_MAKE_FUNC(void *, keymgmt_gen_init,
 523                     (void *provctx, int selection))
 524 OSSL_CORE_MAKE_FUNC(int, keymgmt_gen_set_template,
 525                     (void *genctx, void *templ))
 526 OSSL_CORE_MAKE_FUNC(int, keymgmt_gen_set_params,
 527                     (void *genctx, const OSSL_PARAM params[]))
 528 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,
 529                     keymgmt_gen_settable_params, (void *provctx))
 530 OSSL_CORE_MAKE_FUNC(int, keymgmt_gen_get_params,
 531                     (void *genctx, OSSL_PARAM params[]))
 532 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *,
 533                     keymgmt_gen_gettable_params, (void *provctx))
 534 OSSL_CORE_MAKE_FUNC(void *, keymgmt_gen,
 535                     (void *genctx, OSSL_CALLBACK *cb, void *cbarg))
 536 OSSL_CORE_MAKE_FUNC(void, keymgmt_gen_cleanup, (void *genctx))
 537
 538 /* Key loading by object reference */
 539 # define OSSL_FUNC_KEYMGMT_LOAD                        8
 540 OSSL_CORE_MAKE_FUNC(void *, keymgmt_load,
 541                     (const void *reference, size_t reference_sz))
 542
 543 /* Basic key object destruction */
 544 # define OSSL_FUNC_KEYMGMT_FREE                       10
 545 OSSL_CORE_MAKE_FUNC(void, keymgmt_free, (void *keydata))
 546
 547 /* Key object information, with discovery */
 548 #define OSSL_FUNC_KEYMGMT_GET_PARAMS                  11
 549 #define OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS             12
 550 OSSL_CORE_MAKE_FUNC(int, keymgmt_get_params,
 551                     (void *keydata, OSSL_PARAM params[]))
 552 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keymgmt_gettable_params, (void *))
 553
 554 #define OSSL_FUNC_KEYMGMT_SET_PARAMS                  13
 555 #define OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS             14
 556 OSSL_CORE_MAKE_FUNC(int, keymgmt_set_params,
 557                     (void *keydata, const OSSL_PARAM params[]))
 558 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keymgmt_settable_params, (void *))
 559
 560 /* Key checks - discovery of supported operations */
 561 # define OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME       20
 562 OSSL_CORE_MAKE_FUNC(const char *, keymgmt_query_operation_name,
 563                     (int operation_id))
 564
 565 /* Key checks - key data content checks */
 566 # define OSSL_FUNC_KEYMGMT_HAS                        21
 567 OSSL_CORE_MAKE_FUNC(int, keymgmt_has, (const void *keydata, int selection))
 568
 569 /* Key checks - validation */
 570 # define OSSL_FUNC_KEYMGMT_VALIDATE                   22
 571 OSSL_CORE_MAKE_FUNC(int, keymgmt_validate, (const void *keydata, int selection,
 572                                             int checktype))
 573
 574 /* Key checks - matching */
 575 # define OSSL_FUNC_KEYMGMT_MATCH                      23
 576 OSSL_CORE_MAKE_FUNC(int, keymgmt_match,
 577                     (const void *keydata1, const void *keydata2,
 578                      int selection))
 579
 580 /* Import and export functions, with discovery */
 581 # define OSSL_FUNC_KEYMGMT_IMPORT                     40
 582 # define OSSL_FUNC_KEYMGMT_IMPORT_TYPES               41
 583 # define OSSL_FUNC_KEYMGMT_EXPORT                     42
 584 # define OSSL_FUNC_KEYMGMT_EXPORT_TYPES               43
 585 OSSL_CORE_MAKE_FUNC(int, keymgmt_import,
 586                     (void *keydata, int selection, const OSSL_PARAM params[]))
 587 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keymgmt_import_types,
 588                     (int selection))
 589 OSSL_CORE_MAKE_FUNC(int, keymgmt_export,
 590                     (void *keydata, int selection,
 591                      OSSL_CALLBACK *param_cb, void *cbarg))
 592 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keymgmt_export_types,
 593                     (int selection))
 594
 595 /* Copy function, only works for matching keymgmt */
 596 # define OSSL_FUNC_KEYMGMT_COPY                       44
 597 OSSL_CORE_MAKE_FUNC(int, keymgmt_copy,
 598                     ( void *keydata_to, const void *keydata_from,
 599                      int selection))
 600
 601 /* Key Exchange */
 602
 603 # define OSSL_FUNC_KEYEXCH_NEWCTX                      1
 604 # define OSSL_FUNC_KEYEXCH_INIT                        2
 605 # define OSSL_FUNC_KEYEXCH_DERIVE                      3
 606 # define OSSL_FUNC_KEYEXCH_SET_PEER                    4
 607 # define OSSL_FUNC_KEYEXCH_FREECTX                     5
 608 # define OSSL_FUNC_KEYEXCH_DUPCTX                      6
 609 # define OSSL_FUNC_KEYEXCH_SET_CTX_PARAMS              7
 610 # define OSSL_FUNC_KEYEXCH_SETTABLE_CTX_PARAMS         8
 611 # define OSSL_FUNC_KEYEXCH_GET_CTX_PARAMS              9
 612 # define OSSL_FUNC_KEYEXCH_GETTABLE_CTX_PARAMS        10
 613
 614 OSSL_CORE_MAKE_FUNC(void *, keyexch_newctx, (void *provctx))
 615 OSSL_CORE_MAKE_FUNC(int, keyexch_init, (void *ctx, void *provkey))
 616 OSSL_CORE_MAKE_FUNC(int, keyexch_derive, (void *ctx,  unsigned char *secret,
 617                                              size_t *secretlen, size_t outlen))
 618 OSSL_CORE_MAKE_FUNC(int, keyexch_set_peer, (void *ctx, void *provkey))
 619 OSSL_CORE_MAKE_FUNC(void, keyexch_freectx, (void *ctx))
 620 OSSL_CORE_MAKE_FUNC(void *, keyexch_dupctx, (void *ctx))
 621 OSSL_CORE_MAKE_FUNC(int, keyexch_set_ctx_params, (void *ctx,
 622                                                      const OSSL_PARAM params[]))
 623 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keyexch_settable_ctx_params,
 624                     (void *provctx))
 625 OSSL_CORE_MAKE_FUNC(int, keyexch_get_ctx_params, (void *ctx,
 626                                                      OSSL_PARAM params[]))
 627 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, keyexch_gettable_ctx_params,
 628                     (void *provctx))
 629
 630 /* Signature */
 631
 632 # define OSSL_FUNC_SIGNATURE_NEWCTX                  1
 633 # define OSSL_FUNC_SIGNATURE_SIGN_INIT               2
 634 # define OSSL_FUNC_SIGNATURE_SIGN                    3
 635 # define OSSL_FUNC_SIGNATURE_VERIFY_INIT             4
 636 # define OSSL_FUNC_SIGNATURE_VERIFY                  5
 637 # define OSSL_FUNC_SIGNATURE_VERIFY_RECOVER_INIT     6
 638 # define OSSL_FUNC_SIGNATURE_VERIFY_RECOVER          7
 639 # define OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT        8
 640 # define OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE      9
 641 # define OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL      10
 642 # define OSSL_FUNC_SIGNATURE_DIGEST_SIGN            11
 643 # define OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT     12
 644 # define OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE   13
 645 # define OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL    14
 646 # define OSSL_FUNC_SIGNATURE_DIGEST_VERIFY          15
 647 # define OSSL_FUNC_SIGNATURE_FREECTX                16
 648 # define OSSL_FUNC_SIGNATURE_DUPCTX                 17
 649 # define OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS         18
 650 # define OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS    19
 651 # define OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS         20
 652 # define OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS    21
 653 # define OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS      22
 654 # define OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS 23
 655 # define OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS      24
 656 # define OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS 25
 657
 658 OSSL_CORE_MAKE_FUNC(void *, signature_newctx, (void *provctx,
 659                                                   const char *propq))
 660 OSSL_CORE_MAKE_FUNC(int, signature_sign_init, (void *ctx, void *provkey))
 661 OSSL_CORE_MAKE_FUNC(int, signature_sign, (void *ctx,  unsigned char *sig,
 662                                              size_t *siglen, size_t sigsize,
 663                                              const unsigned char *tbs,
 664                                              size_t tbslen))
 665 OSSL_CORE_MAKE_FUNC(int, signature_verify_init, (void *ctx, void *provkey))
 666 OSSL_CORE_MAKE_FUNC(int, signature_verify, (void *ctx,
 667                                                const unsigned char *sig,
 668                                                size_t siglen,
 669                                                const unsigned char *tbs,
 670                                                size_t tbslen))
 671 OSSL_CORE_MAKE_FUNC(int, signature_verify_recover_init, (void *ctx,
 672                                                             void *provkey))
 673 OSSL_CORE_MAKE_FUNC(int, signature_verify_recover, (void *ctx,
 674                                                        unsigned char *rout,
 675                                                        size_t *routlen,
 676                                                        size_t routsize,
 677                                                        const unsigned char *sig,
 678                                                        size_t siglen))
 679 OSSL_CORE_MAKE_FUNC(int, signature_digest_sign_init,
 680                     (void *ctx, const char *mdname, void *provkey))
 681 OSSL_CORE_MAKE_FUNC(int, signature_digest_sign_update,
 682                     (void *ctx, const unsigned char *data, size_t datalen))
 683 OSSL_CORE_MAKE_FUNC(int, signature_digest_sign_final,
 684                     (void *ctx, unsigned char *sig, size_t *siglen,
 685                      size_t sigsize))
 686 OSSL_CORE_MAKE_FUNC(int, signature_digest_sign,
 687                     (void *ctx, unsigned char *sigret, size_t *siglen,
 688                      size_t sigsize, const unsigned char *tbs, size_t tbslen))
 689 OSSL_CORE_MAKE_FUNC(int, signature_digest_verify_init,
 690                     (void *ctx, const char *mdname, void *provkey))
 691 OSSL_CORE_MAKE_FUNC(int, signature_digest_verify_update,
 692                     (void *ctx, const unsigned char *data, size_t datalen))
 693 OSSL_CORE_MAKE_FUNC(int, signature_digest_verify_final,
 694                     (void *ctx, const unsigned char *sig, size_t siglen))
 695 OSSL_CORE_MAKE_FUNC(int, signature_digest_verify,
 696                     (void *ctx, const unsigned char *sig, size_t siglen,
 697                      const unsigned char *tbs, size_t tbslen))
 698 OSSL_CORE_MAKE_FUNC(void, signature_freectx, (void *ctx))
 699 OSSL_CORE_MAKE_FUNC(void *, signature_dupctx, (void *ctx))
 700 OSSL_CORE_MAKE_FUNC(int, signature_get_ctx_params,
 701                     (void *ctx, OSSL_PARAM params[]))
 702 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, signature_gettable_ctx_params,
 703                     (void *provctx))
 704 OSSL_CORE_MAKE_FUNC(int, signature_set_ctx_params,
 705                     (void *ctx, const OSSL_PARAM params[]))
 706 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, signature_settable_ctx_params,
 707                     (void *provctx))
 708 OSSL_CORE_MAKE_FUNC(int, signature_get_ctx_md_params,
 709                     (void *ctx, OSSL_PARAM params[]))
 710 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, signature_gettable_ctx_md_params,
 711                     (void *ctx))
 712 OSSL_CORE_MAKE_FUNC(int, signature_set_ctx_md_params,
 713                     (void *ctx, const OSSL_PARAM params[]))
 714 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, signature_settable_ctx_md_params,
 715                     (void *ctx))
 716
 717
 718 /* Asymmetric Ciphers */
 719
 720 # define OSSL_FUNC_ASYM_CIPHER_NEWCTX                  1
 721 # define OSSL_FUNC_ASYM_CIPHER_ENCRYPT_INIT            2
 722 # define OSSL_FUNC_ASYM_CIPHER_ENCRYPT                 3
 723 # define OSSL_FUNC_ASYM_CIPHER_DECRYPT_INIT            4
 724 # define OSSL_FUNC_ASYM_CIPHER_DECRYPT                 5
 725 # define OSSL_FUNC_ASYM_CIPHER_FREECTX                 6
 726 # define OSSL_FUNC_ASYM_CIPHER_DUPCTX                  7
 727 # define OSSL_FUNC_ASYM_CIPHER_GET_CTX_PARAMS          8
 728 # define OSSL_FUNC_ASYM_CIPHER_GETTABLE_CTX_PARAMS     9
 729 # define OSSL_FUNC_ASYM_CIPHER_SET_CTX_PARAMS         10
 730 # define OSSL_FUNC_ASYM_CIPHER_SETTABLE_CTX_PARAMS    11
 731
 732 OSSL_CORE_MAKE_FUNC(void *, asym_cipher_newctx, (void *provctx))
 733 OSSL_CORE_MAKE_FUNC(int, asym_cipher_encrypt_init, (void *ctx, void *provkey))
 734 OSSL_CORE_MAKE_FUNC(int, asym_cipher_encrypt, (void *ctx, unsigned char *out,
 735                                                   size_t *outlen,
 736                                                   size_t outsize,
 737                                                   const unsigned char *in,
 738                                                   size_t inlen))
 739 OSSL_CORE_MAKE_FUNC(int, asym_cipher_decrypt_init, (void *ctx, void *provkey))
 740 OSSL_CORE_MAKE_FUNC(int, asym_cipher_decrypt, (void *ctx, unsigned char *out,
 741                                                   size_t *outlen,
 742                                                   size_t outsize,
 743                                                   const unsigned char *in,
 744                                                   size_t inlen))
 745 OSSL_CORE_MAKE_FUNC(void, asym_cipher_freectx, (void *ctx))
 746 OSSL_CORE_MAKE_FUNC(void *, asym_cipher_dupctx, (void *ctx))
 747 OSSL_CORE_MAKE_FUNC(int, asym_cipher_get_ctx_params,
 748                     (void *ctx, OSSL_PARAM params[]))
 749 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, asym_cipher_gettable_ctx_params,
 750                     (void *provctx))
 751 OSSL_CORE_MAKE_FUNC(int, asym_cipher_set_ctx_params,
 752                     (void *ctx, const OSSL_PARAM params[]))
 753 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, asym_cipher_settable_ctx_params,
 754                     (void *provctx))
 755
 756 /* Asymmetric Key encapsulation */
 757 # define OSSL_FUNC_KEM_NEWCTX                  1
 758 # define OSSL_FUNC_KEM_ENCAPSULATE_INIT        2
 759 # define OSSL_FUNC_KEM_ENCAPSULATE             3
 760 # define OSSL_FUNC_KEM_DECAPSULATE_INIT        4
 761 # define OSSL_FUNC_KEM_DECAPSULATE             5
 762 # define OSSL_FUNC_KEM_FREECTX                 6
 763 # define OSSL_FUNC_KEM_DUPCTX                  7
 764 # define OSSL_FUNC_KEM_GET_CTX_PARAMS          8
 765 # define OSSL_FUNC_KEM_GETTABLE_CTX_PARAMS     9
 766 # define OSSL_FUNC_KEM_SET_CTX_PARAMS         10
 767 # define OSSL_FUNC_KEM_SETTABLE_CTX_PARAMS    11
 768
 769 OSSL_CORE_MAKE_FUNC(void *, kem_newctx, (void *provctx))
 770 OSSL_CORE_MAKE_FUNC(int, kem_encapsulate_init, (void *ctx, void *provkey))
 771 OSSL_CORE_MAKE_FUNC(int, kem_encapsulate, (void *ctx,
 772                                            unsigned char *out, size_t *outlen,
 773                                            unsigned char *secret,
 774                                            size_t *secretlen))
 775 OSSL_CORE_MAKE_FUNC(int, kem_decapsulate_init, (void *ctx, void *provkey))
 776 OSSL_CORE_MAKE_FUNC(int, kem_decapsulate, (void *ctx,
 777                                            unsigned char *out, size_t *outlen,
 778                                            const unsigned char *in, size_t inlen))
 779 OSSL_CORE_MAKE_FUNC(void, kem_freectx, (void *ctx))
 780 OSSL_CORE_MAKE_FUNC(void *, kem_dupctx, (void *ctx))
 781 OSSL_CORE_MAKE_FUNC(int, kem_get_ctx_params, (void *ctx, OSSL_PARAM params[]))
 782 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, kem_gettable_ctx_params, (void *provctx))
 783 OSSL_CORE_MAKE_FUNC(int, kem_set_ctx_params,
 784                     (void *ctx, const OSSL_PARAM params[]))
 785 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, kem_settable_ctx_params, (void *provctx))
 786
 787 /* Encoders and decoders */
 788 # define OSSL_FUNC_ENCODER_NEWCTX                      1
 789 # define OSSL_FUNC_ENCODER_FREECTX                     2
 790 # define OSSL_FUNC_ENCODER_GET_PARAMS                  3
 791 # define OSSL_FUNC_ENCODER_GETTABLE_PARAMS             4
 792 # define OSSL_FUNC_ENCODER_SET_CTX_PARAMS              5
 793 # define OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS         6
 794 # define OSSL_FUNC_ENCODER_DOES_SELECTION             10
 795 # define OSSL_FUNC_ENCODER_ENCODE                     11
 796 # define OSSL_FUNC_ENCODER_IMPORT_OBJECT              20
 797 # define OSSL_FUNC_ENCODER_FREE_OBJECT                21
 798 OSSL_CORE_MAKE_FUNC(void *, encoder_newctx, (void *provctx))
 799 OSSL_CORE_MAKE_FUNC(void, encoder_freectx, (void *ctx))
 800 OSSL_CORE_MAKE_FUNC(int, encoder_get_params, (OSSL_PARAM params[]))
 801 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, encoder_gettable_params,
 802                     (void *provctx))
 803 OSSL_CORE_MAKE_FUNC(int, encoder_set_ctx_params,
 804                     (void *ctx, const OSSL_PARAM params[]))
 805 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, encoder_settable_ctx_params,
 806                     (void *provctx))
 807
 808 OSSL_CORE_MAKE_FUNC(int, encoder_does_selection,
 809                     (void *provctx, int selection))
 810 OSSL_CORE_MAKE_FUNC(int, encoder_encode,
 811                     (void *ctx, OSSL_CORE_BIO *out,
 812                      const void *obj_raw, const OSSL_PARAM obj_abstract[],
 813                      int selection,
 814                      OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg))
 815
 816 OSSL_CORE_MAKE_FUNC(void *, encoder_import_object,
 817                     (void *ctx, int selection, const OSSL_PARAM params[]))
 818 OSSL_CORE_MAKE_FUNC(void, encoder_free_object, (void *obj))
 819
 820 # define OSSL_FUNC_DECODER_NEWCTX                      1
 821 # define OSSL_FUNC_DECODER_FREECTX                     2
 822 # define OSSL_FUNC_DECODER_GET_PARAMS                  3
 823 # define OSSL_FUNC_DECODER_GETTABLE_PARAMS             4
 824 # define OSSL_FUNC_DECODER_SET_CTX_PARAMS              5
 825 # define OSSL_FUNC_DECODER_SETTABLE_CTX_PARAMS         6
 826 # define OSSL_FUNC_DECODER_DOES_SELECTION             10
 827 # define OSSL_FUNC_DECODER_DECODE                     11
 828 # define OSSL_FUNC_DECODER_EXPORT_OBJECT              20
 829 OSSL_CORE_MAKE_FUNC(void *, decoder_newctx, (void *provctx))
 830 OSSL_CORE_MAKE_FUNC(void, decoder_freectx, (void *ctx))
 831 OSSL_CORE_MAKE_FUNC(int, decoder_get_params, (OSSL_PARAM params[]))
 832 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, decoder_gettable_params,
 833                     (void *provctx))
 834 OSSL_CORE_MAKE_FUNC(int, decoder_set_ctx_params,
 835                     (void *ctx, const OSSL_PARAM params[]))
 836 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, decoder_settable_ctx_params,
 837                     (void *provctx))
 838
 839 OSSL_CORE_MAKE_FUNC(int, decoder_does_selection,
 840                     (void *provctx, int selection))
 841 OSSL_CORE_MAKE_FUNC(int, decoder_decode,
 842                     (void *ctx, OSSL_CORE_BIO *in, int selection,
 843                      OSSL_CALLBACK *metadata_cb, void *metadata_cbarg,
 844                      OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg))
 845 OSSL_CORE_MAKE_FUNC(int, decoder_export_object,
 846                     (void *ctx, const void *objref, size_t objref_sz,
 847                      OSSL_CALLBACK *export_cb, void *export_cbarg))
 848
 849 /*-
 850  * Store
 851  *
 852  * Objects are scanned by using the 'open', 'load', 'eof' and 'close'
 853  * functions, which implement an OSSL_STORE loader.
 854  *
 855  * store_load() works in a way that's very similar to the decoders, in
 856  * that they pass an abstract object through a callback, either as a DER
 857  * octet string or as an object reference, which libcrypto will have to
 858  * deal with.
 859  */
 860
 861 #define OSSL_FUNC_STORE_OPEN                        1
 862 #define OSSL_FUNC_STORE_ATTACH                      2
 863 #define OSSL_FUNC_STORE_SETTABLE_CTX_PARAMS         3
 864 #define OSSL_FUNC_STORE_SET_CTX_PARAMS              4
 865 #define OSSL_FUNC_STORE_LOAD                        5
 866 #define OSSL_FUNC_STORE_EOF                         6
 867 #define OSSL_FUNC_STORE_CLOSE                       7
 868 #define OSSL_FUNC_STORE_EXPORT_OBJECT               8
 869 OSSL_CORE_MAKE_FUNC(void *, store_open, (void *provctx, const char *uri))
 870 OSSL_CORE_MAKE_FUNC(void *, store_attach, (void *provctx, OSSL_CORE_BIO *in))
 871 OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, store_settable_ctx_params,
 872                     (void *provctx))
 873 OSSL_CORE_MAKE_FUNC(int, store_set_ctx_params,
 874                     (void *loaderctx, const OSSL_PARAM params[]))
 875 OSSL_CORE_MAKE_FUNC(int, store_load,
 876                     (void *loaderctx,
 877                      OSSL_CALLBACK *object_cb, void *object_cbarg,
 878                      OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg))
 879 OSSL_CORE_MAKE_FUNC(int, store_eof, (void *loaderctx))
 880 OSSL_CORE_MAKE_FUNC(int, store_close, (void *loaderctx))
 881 OSSL_CORE_MAKE_FUNC(int, store_export_object,
 882                     (void *loaderctx, const void *objref, size_t objref_sz,
 883                      OSSL_CALLBACK *export_cb, void *export_cbarg))
 884
 885 # ifdef __cplusplus
 886 }
 887 # endif
 888
 889 #endif