include/sys/zfs_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) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
  24  */
  25
  26 #ifndef _SYS_ZFS_IMPL_H
  27 #define _SYS_ZFS_IMPL_H
  28
  29 #ifdef  __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /* generic implementation backends */
  34 typedef struct
  35 {
  36         /* algorithm name */
  37         const char *name;
  38
  39         /* get number of supported implementations */
  40         uint32_t (*getcnt)(void);
  41
  42         /* get id of selected implementation */
  43         uint32_t (*getid)(void);
  44
  45         /* get name of selected implementation */
  46         const char *(*getname)(void);
  47
  48         /* setup id as fastest implementation */
  49         void (*set_fastest)(uint32_t id);
  50
  51         /* set implementation by id */
  52         void (*setid)(uint32_t id);
  53
  54         /* set implementation by name */
  55         int (*setname)(const char *val);
  56 } zfs_impl_t;
  57
  58 /* return some set of function pointer */
  59 extern const zfs_impl_t *zfs_impl_get_ops(const char *algo);
  60
  61 extern const zfs_impl_t zfs_blake3_ops;
  62 extern const zfs_impl_t zfs_sha256_ops;
  63 extern const zfs_impl_t zfs_sha512_ops;
  64
  65 #ifdef  __cplusplus
  66 }
  67 #endif
  68
  69 #endif  /* _SYS_ZFS_IMPL_H */