mirror of https://github.com/gkostka/lwext4.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.3 KiB
76 lines
2.3 KiB
/*
|
|
* Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
* - The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
/** @addtogroup lwext4
|
|
* @{
|
|
*/
|
|
/**
|
|
* @file ext4_hash.h
|
|
* @brief Directory indexing hash functions.
|
|
*/
|
|
|
|
#ifndef EXT4_HASH_H_
|
|
#define EXT4_HASH_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <ext4_config.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
struct ext4_hash_info {
|
|
uint32_t hash;
|
|
uint32_t minor_hash;
|
|
uint32_t hash_version;
|
|
const uint32_t *seed;
|
|
};
|
|
|
|
|
|
/**@brief Directory entry name hash function.
|
|
* @param name entry name
|
|
* @param len entry name length
|
|
* @param hash_seed (from superblock)
|
|
* @param hash_version version (from superblock)
|
|
* @param hash_minor output value
|
|
* @param hash_major output value
|
|
* @return standard error code*/
|
|
int ext2_htree_hash(const char *name, int len, const uint32_t *hash_seed,
|
|
int hash_version, uint32_t *hash_major,
|
|
uint32_t *hash_minor);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* EXT4_HASH_H_ */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|