xattr.h

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/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
 * xattr.h - This file is part of libsquashfs
 *
 * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#ifndef SQFS_XATTR_H
#define SQFS_XATTR_H
 
#include "sqfs/predef.h"


typedef enum {
    SQFS_XATTR_USER = 0,
    SQFS_XATTR_TRUSTED = 1,
    SQFS_XATTR_SECURITY = 2,
 
    SQFS_XATTR_FLAG_OOL = 0x100,
    SQFS_XATTR_PREFIX_MASK = 0xFF,
} SQFS_XATTR_TYPE;

struct sqfs_xattr_entry_t {
    sqfs_u16 type;

    sqfs_u16 size;
    sqfs_u8 key[];
};

struct sqfs_xattr_value_t {
    sqfs_u32 size;
    sqfs_u8 value[];
};

struct sqfs_xattr_id_t {
    sqfs_u64 xattr;

    sqfs_u32 count;

    sqfs_u32 size;
};

struct sqfs_xattr_id_table_t {
    sqfs_u64 xattr_table_start;

    sqfs_u32 xattr_ids;

    sqfs_u32 unused;

    sqfs_u64 locations[];
};
 
#ifdef __cplusplus
extern "C" {
#endif

SQFS_API const char *sqfs_get_xattr_prefix(SQFS_XATTR_TYPE id);

SQFS_API int sqfs_get_xattr_prefix_id(const char *key);
 
#ifdef __cplusplus
}
#endif
 
#endif /* SQFS_XATTR_H */