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The commit replaces all findings of the link: http://www.opensolaris.org/os/licensing with this one: https://opensource.org/licenses/CDDL-1.0 Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de> Closes #13619
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Based on BLAKE3 v1.3.1, https://github.com/BLAKE3-team/BLAKE3
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* Copyright (c) 2019-2020 Samuel Neves and Jack O'Connor
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* Copyright (c) 2021 Tino Reichardt <milky-zfs@mcmilk.de>
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*/
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#ifndef BLAKE3_H
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#define BLAKE3_H
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#ifdef _KERNEL
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#include <sys/types.h>
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#else
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#include <stdint.h>
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#include <stdlib.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BLAKE3_KEY_LEN 32
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#define BLAKE3_OUT_LEN 32
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#define BLAKE3_MAX_DEPTH 54
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#define BLAKE3_BLOCK_LEN 64
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#define BLAKE3_CHUNK_LEN 1024
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/*
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* This struct is a private implementation detail.
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* It has to be here because it's part of BLAKE3_CTX below.
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*/
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typedef struct {
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uint32_t cv[8];
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uint64_t chunk_counter;
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uint8_t buf[BLAKE3_BLOCK_LEN];
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uint8_t buf_len;
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uint8_t blocks_compressed;
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uint8_t flags;
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} blake3_chunk_state_t;
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typedef struct {
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uint32_t key[8];
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blake3_chunk_state_t chunk;
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uint8_t cv_stack_len;
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/*
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* The stack size is MAX_DEPTH + 1 because we do lazy merging. For
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* example, with 7 chunks, we have 3 entries in the stack. Adding an
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* 8th chunk requires a 4th entry, rather than merging everything down
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* to 1, because we don't know whether more input is coming. This is
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* different from how the reference implementation does things.
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*/
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uint8_t cv_stack[(BLAKE3_MAX_DEPTH + 1) * BLAKE3_OUT_LEN];
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/* const blake3_impl_ops_t *ops */
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const void *ops;
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} BLAKE3_CTX;
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/* init the context for hash operation */
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void Blake3_Init(BLAKE3_CTX *ctx);
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/* init the context for a MAC and/or tree hash operation */
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void Blake3_InitKeyed(BLAKE3_CTX *ctx, const uint8_t key[BLAKE3_KEY_LEN]);
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/* process the input bytes */
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void Blake3_Update(BLAKE3_CTX *ctx, const void *input, size_t input_len);
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/* finalize the hash computation and output the result */
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void Blake3_Final(const BLAKE3_CTX *ctx, uint8_t *out);
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/* finalize the hash computation and output the result */
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void Blake3_FinalSeek(const BLAKE3_CTX *ctx, uint64_t seek, uint8_t *out,
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size_t out_len);
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/* these are pre-allocated contexts */
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extern void **blake3_per_cpu_ctx;
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extern void blake3_per_cpu_ctx_init(void);
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extern void blake3_per_cpu_ctx_fini(void);
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/* return number of supported implementations */
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extern int blake3_get_impl_count(void);
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/* return id of selected implementation */
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extern int blake3_get_impl_id(void);
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/* return name of selected implementation */
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extern const char *blake3_get_impl_name(void);
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/* setup id as fastest implementation */
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extern void blake3_set_impl_fastest(uint32_t id);
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/* set implementation by id */
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extern void blake3_set_impl_id(uint32_t id);
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/* set implementation by name */
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extern int blake3_set_impl_name(const char *name);
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/* set startup implementation */
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extern void blake3_setup_impl(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* BLAKE3_H */
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