/*
   * Copyright (c) 2000-2001 Christoph Hellwig.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions, and the following disclaimer,
   *    without modification.
   * 2. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL").
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 _VXFS_INODE_H_
  #define _VXFS_INODE_H_
  
  /*
   * Veritas filesystem driver - inode structure.
   *
   * This file contains the definition of the disk and core
   * inodes of the Veritas Filesystem.
   */
  
  
  #define VXFS_ISIZE		0x100		/* Inode size */
  
  #define VXFS_NDADDR		10		/* Number of direct addrs in inode */
  #define VXFS_NIADDR		2		/* Number of indirect addrs in inode */
  #define VXFS_NIMMED		96		/* Size of immediate data in inode */
  #define VXFS_NTYPED		6		/* Num of typed extents */
  
  #define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)
  #define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)
  #define VXFS_TYPED_TYPESHIFT	56
  
  #define VXFS_TYPED_PER_BLOCK(sbp) \
  	((sbp)->s_blocksize / sizeof(struct vxfs_typed))
  
  /*
   * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
   */
  enum {
  	VXFS_TYPED_INDIRECT		= 1,
  	VXFS_TYPED_DATA			= 2,
  	VXFS_TYPED_INDIRECT_DEV4	= 3,
  	VXFS_TYPED_DATA_DEV4		= 4,
  };
  
  /*
   * Data stored immediately in the inode.
   */
  struct vxfs_immed {
  	u_int8_t	vi_immed[VXFS_NIMMED];
  };
  
  struct vxfs_ext4 {
  	u_int32_t		ve4_spare;		/* ?? */
  	u_int32_t		ve4_indsize;		/* Indirect extent size */
  	vx_daddr_t		ve4_indir[VXFS_NIADDR];	/* Indirect extents */
  	struct direct {					/* Direct extents */
  		vx_daddr_t	extent;			/* Extent number */
  		int32_t		size;			/* Size of extent */
  	} ve4_direct[VXFS_NDADDR];
  };
  
  struct vxfs_typed {
  	u_int64_t	vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
  	vx_daddr_t	vt_block;	/* Extent block */
  	int32_t		vt_size;	/* Size in blocks */
  };
  
  struct vxfs_typed_dev4 {
  	u_int64_t	vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
  	u_int64_t	vd4_block;	/* Extent block */
  	u_int64_t	vd4_size;	/* Size in blocks */
  	int32_t		vd4_dev;	/* Device ID */
  	u_int32_t	__pad1;
  };
  
  /*
   * The inode as contained on the physical device.
   */
  struct vxfs_dinode {
  	int32_t		vdi_mode;
  	u_int32_t	vdi_nlink;	/* Link count */
  	u_int32_t	vdi_uid;	/* UID */
  	u_int32_t	vdi_gid;	/* GID */
  	u_int64_t	vdi_size;	/* Inode size in bytes */
  	u_int32_t	vdi_atime;	/* Last time accessed - sec */
  	u_int32_t	vdi_autime;	/* Last time accessed - usec */
  	u_int32_t	vdi_mtime;	/* Last modify time - sec */
  	u_int32_t	vdi_mutime;	/* Last modify time - usec */
  	u_int32_t	vdi_ctime;	/* Create time - sec */
  	u_int32_t	vdi_cutime;	/* Create time - usec */
  	u_int8_t	vdi_aflags;	/* Allocation flags */
  	u_int8_t	vdi_orgtype;	/* Organisation type */
  	u_int16_t	vdi_eopflags;
  	u_int32_t	vdi_eopdata;
  	union {
  		u_int32_t		rdev;
  		u_int32_t		dotdot;
  		struct {
  			u_int32_t	reserved;
  			u_int32_t	fixextsize;
  		} i_regular;
  		struct {
  			u_int32_t	matchino;
  			u_int32_t	fsetindex;
  		} i_vxspec;
  		u_int64_t		align;
  	} vdi_ftarea;
  	u_int32_t	vdi_blocks;	/* How much blocks does inode occupy */
  	u_int32_t	vdi_gen;	/* Inode generation */
  	u_int64_t	vdi_version;	/* Version */
  	union {
  		struct vxfs_immed	immed;
  		struct vxfs_ext4	ext4;
  		struct vxfs_typed	typed[VXFS_NTYPED];
  	} vdi_org;
  	u_int32_t	vdi_iattrino;
  };
  
  #define vdi_rdev	vdi_ftarea.rdev
  #define vdi_dotdot	vdi_ftarea.dotdot
  #define vdi_fixextsize	vdi_ftarea.regular.fixextsize
  #define vdi_matchino	vdi_ftarea.vxspec.matchino
  #define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex
  
  #define vdi_immed	vdi_org.immed
  #define vdi_ext4	vdi_org.ext4
  #define vdi_typed	vdi_org.typed
  
  
  /*
   * The inode as represented in the main memory.
   *
   * TBD: This should become a separate structure...
   */
  #define vxfs_inode_info	vxfs_dinode
  
  #define vii_mode	vdi_mode
  #define vii_uid		vdi_uid
  #define vii_gid		vdi_gid
  #define vii_nlink	vdi_nlink
  #define vii_size	vdi_size
  #define vii_atime	vdi_atime
  #define vii_ctime	vdi_ctime
  #define vii_mtime	vdi_mtime
  #define vii_blocks	vdi_blocks
  #define vii_org		vdi_org
  #define vii_orgtype	vdi_orgtype
  #define vii_gen		vdi_gen
  
  #define vii_rdev	vdi_ftarea.rdev
  #define vii_dotdot	vdi_ftarea.dotdot
  #define vii_fixextsize	vdi_ftarea.regular.fixextsize
  #define vii_matchino	vdi_ftarea.vxspec.matchino
  #define vii_fsetindex	vdi_ftarea.vxspec.fsetindex
  
  #define vii_immed	vdi_org.immed
  #define vii_ext4	vdi_org.ext4
  #define vii_typed	vdi_org.typed
  
  #endif /* _VXFS_INODE_H_ */