135 lines
4.3 KiB
C
Executable file
135 lines
4.3 KiB
C
Executable file
/*
|
|
* Header file for multi buffer SHA256 context
|
|
*
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
|
* redistributing this file, you may do so under either license.
|
|
*
|
|
* GPL LICENSE SUMMARY
|
|
*
|
|
* Copyright(c) 2016 Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* Contact Information:
|
|
* Megha Dey <megha.dey@linux.intel.com>
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright(c) 2016 Intel Corporation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _SHA_MB_CTX_INTERNAL_H
|
|
#define _SHA_MB_CTX_INTERNAL_H
|
|
|
|
#include "sha256_mb_mgr.h"
|
|
|
|
#define HASH_UPDATE 0x00
|
|
#define HASH_LAST 0x01
|
|
#define HASH_DONE 0x02
|
|
#define HASH_FINAL 0x04
|
|
|
|
#define HASH_CTX_STS_IDLE 0x00
|
|
#define HASH_CTX_STS_PROCESSING 0x01
|
|
#define HASH_CTX_STS_LAST 0x02
|
|
#define HASH_CTX_STS_COMPLETE 0x04
|
|
|
|
enum hash_ctx_error {
|
|
HASH_CTX_ERROR_NONE = 0,
|
|
HASH_CTX_ERROR_INVALID_FLAGS = -1,
|
|
HASH_CTX_ERROR_ALREADY_PROCESSING = -2,
|
|
HASH_CTX_ERROR_ALREADY_COMPLETED = -3,
|
|
|
|
#ifdef HASH_CTX_DEBUG
|
|
HASH_CTX_ERROR_DEBUG_DIGEST_MISMATCH = -4,
|
|
#endif
|
|
};
|
|
|
|
|
|
#define hash_ctx_user_data(ctx) ((ctx)->user_data)
|
|
#define hash_ctx_digest(ctx) ((ctx)->job.result_digest)
|
|
#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING)
|
|
#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE)
|
|
#define hash_ctx_status(ctx) ((ctx)->status)
|
|
#define hash_ctx_error(ctx) ((ctx)->error)
|
|
#define hash_ctx_init(ctx) \
|
|
do { \
|
|
(ctx)->error = HASH_CTX_ERROR_NONE; \
|
|
(ctx)->status = HASH_CTX_STS_COMPLETE; \
|
|
} while (0)
|
|
|
|
|
|
/* Hash Constants and Typedefs */
|
|
#define SHA256_DIGEST_LENGTH 8
|
|
#define SHA256_LOG2_BLOCK_SIZE 6
|
|
|
|
#define SHA256_PADLENGTHFIELD_SIZE 8
|
|
|
|
#ifdef SHA_MB_DEBUG
|
|
#define assert(expr) \
|
|
do { \
|
|
if (unlikely(!(expr))) { \
|
|
printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
|
|
#expr, __FILE__, __func__, __LINE__); \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define assert(expr) do {} while (0)
|
|
#endif
|
|
|
|
struct sha256_ctx_mgr {
|
|
struct sha256_mb_mgr mgr;
|
|
};
|
|
|
|
/* typedef struct sha256_ctx_mgr sha256_ctx_mgr; */
|
|
|
|
struct sha256_hash_ctx {
|
|
/* Must be at struct offset 0 */
|
|
struct job_sha256 job;
|
|
/* status flag */
|
|
int status;
|
|
/* error flag */
|
|
int error;
|
|
|
|
uint64_t total_length;
|
|
const void *incoming_buffer;
|
|
uint32_t incoming_buffer_length;
|
|
uint8_t partial_block_buffer[SHA256_BLOCK_SIZE * 2];
|
|
uint32_t partial_block_buffer_length;
|
|
void *user_data;
|
|
};
|
|
|
|
#endif
|