module/icp/include/sha2/sha2_impl.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or https://opensource.org/licenses/CDDL-1.0.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Copyright (c) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
  25  */
  26
  27 #ifndef _SHA2_IMPL_H
  28 #define _SHA2_IMPL_H
  29
  30 #include <sys/sha2.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /* transform function definition */
  37 typedef void (*sha256_f)(uint32_t state[8], const void *data, size_t blks);
  38 typedef void (*sha512_f)(uint64_t state[8], const void *data, size_t blks);
  39
  40 /* needed for checking valid implementations */
  41 typedef boolean_t (*sha2_is_supported_f)(void);
  42
  43 typedef struct {
  44         const char *name;
  45         sha256_f transform;
  46         sha2_is_supported_f is_supported;
  47 } sha256_ops_t;
  48
  49 typedef struct {
  50         const char *name;
  51         sha512_f transform;
  52         sha2_is_supported_f is_supported;
  53 } sha512_ops_t;
  54
  55 extern const sha256_ops_t *sha256_get_ops(void);
  56 extern const sha512_ops_t *sha512_get_ops(void);
  57
  58 typedef enum {
  59         SHA1_TYPE,
  60         SHA256_TYPE,
  61         SHA384_TYPE,
  62         SHA512_TYPE
  63 } sha2_mech_t;
  64
  65 /*
  66  * Context for SHA2 mechanism.
  67  */
  68 typedef struct sha2_ctx {
  69         sha2_mech_type_t        sc_mech_type;   /* type of context */
  70         SHA2_CTX                sc_sha2_ctx;    /* SHA2 context */
  71 } sha2_ctx_t;
  72
  73 /*
  74  * Context for SHA2 HMAC and HMAC GENERAL mechanisms.
  75  */
  76 typedef struct sha2_hmac_ctx {
  77         sha2_mech_type_t        hc_mech_type;   /* type of context */
  78         uint32_t                hc_digest_len;  /* digest len in bytes */
  79         SHA2_CTX                hc_icontext;    /* inner SHA2 context */
  80         SHA2_CTX                hc_ocontext;    /* outer SHA2 context */
  81 } sha2_hmac_ctx_t;
  82
  83 #ifdef  __cplusplus
  84 }
  85 #endif
  86
  87 #endif /* _SHA2_IMPL_H */