/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2017, Intel Corporation. All rights reserved.
 * Copyright 2019 Joyent, Inc.
 */

#ifndef _SYS_ZFS_PROJECT_H
#define _SYS_ZFS_PROJECT_H

#ifndef _KERNEL
#ifndef _SYS_MOUNT_H
/* XXX: some hack to avoid include sys/mount.h */
#define _SYS_MOUNT_H
#endif
#endif

#ifdef FS_PROJINHERIT_FL
#define ZFS_PROJINHERIT_FL      FS_PROJINHERIT_FL
#else
#define ZFS_PROJINHERIT_FL      0x20000000
#endif

#ifdef FS_IOC_FSGETXATTR
typedef struct fsxattr zfsxattr_t;

#define ZFS_IOC_FSGETXATTR      FS_IOC_FSGETXATTR
#define ZFS_IOC_FSSETXATTR      FS_IOC_FSSETXATTR
#else
#include <sys/ioccom.h>
typedef struct zfsxattr {
        uint32_t        fsx_xflags;     /* xflags field value (get/set) */
        uint32_t        fsx_projid;     /* project identifier (get/set) */
} zfsxattr_t;

#define ZFS_IOC_FSGETXATTR      _IOR('X', 31, zfsxattr_t)
#define ZFS_IOC_FSSETXATTR      _IOW('X', 32, zfsxattr_t)
#endif

#define ZFS_DEFAULT_PROJID      (0ULL)
/*
 * It is NOT ondisk project ID value. Just means either the object has
 * no project ID or the operation does not touch project ID attribute.
 */
#define ZFS_INVALID_PROJID      (-1ULL)

static inline boolean_t
zpl_is_valid_projid(uint32_t projid)
{
        /*
         * zfsxattr::fsx_projid is 32-bits, when convert to uint64_t,
         * the higher 32-bits will be set as zero, so cannot directly
         * compare with ZFS_INVALID_PROJID (-1ULL)
         */
        if ((uint32_t)ZFS_INVALID_PROJID == projid)
                return (B_FALSE);
        return (B_TRUE);
}

#endif  /* _SYS_ZFS_PROJECT_H */