109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
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/*
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* Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
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* Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** @addtogroup lwext4
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* @{
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*/
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/**
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* @file ext4_xattr.h
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* @brief Extended Attribute manipulation.
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*/
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#ifndef EXT4_XATTR_H_
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#define EXT4_XATTR_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <ext4_config.h>
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#include <ext4_types.h>
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#include <ext4_inode.h>
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struct ext4_xattr_info {
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uint8_t name_index;
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const char *name;
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size_t name_len;
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const void *value;
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size_t value_len;
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};
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struct ext4_xattr_list_entry {
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uint8_t name_index;
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char *name;
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size_t name_len;
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struct ext4_xattr_list_entry *next;
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};
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struct ext4_xattr_search {
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/* The first entry in the buffer */
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struct ext4_xattr_entry *first;
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/* The address of the buffer */
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void *base;
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/* The first inaccessible address */
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void *end;
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/* The current entry pointer */
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struct ext4_xattr_entry *here;
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/* Entry not found */
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bool not_found;
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};
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const char *ext4_extract_xattr_name(const char *full_name, size_t full_name_len,
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uint8_t *name_index, size_t *name_len,
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bool *found);
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const char *ext4_get_xattr_name_prefix(uint8_t name_index,
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size_t *ret_prefix_len);
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int ext4_xattr_list(struct ext4_inode_ref *inode_ref,
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struct ext4_xattr_list_entry *list, size_t *list_len);
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int ext4_xattr_get(struct ext4_inode_ref *inode_ref, uint8_t name_index,
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const char *name, size_t name_len, void *buf, size_t buf_len,
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size_t *data_len);
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int ext4_xattr_remove(struct ext4_inode_ref *inode_ref, uint8_t name_index,
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const char *name, size_t name_len);
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int ext4_xattr_set(struct ext4_inode_ref *inode_ref, uint8_t name_index,
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const char *name, size_t name_len, const void *value,
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size_t value_len);
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#ifdef __cplusplus
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}
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#endif
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#endif
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/**
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* @}
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*/
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