sys/ufs/chfs/chfs_inode.h

   1 /*      $NetBSD: chfs_inode.h,v 1.1 2011/11/24 15:51:31 ahoka Exp $     */
   2
   3 /*-
   4  * Copyright (c) 2010 Department of Software Engineering,
   5  *                    University of Szeged, Hungary
   6  * Copyright (C) 2010 Tamas Toth <ttoth@inf.u-szeged.hu>
   7  * Copyright (C) 2010 Adam Hoka <ahoka@NetBSD.org>
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to The NetBSD Foundation
  11  * by the Department of Software Engineering, University of Szeged, Hungary
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef __CHFS_INODE_H__
  36 #define __CHFS_INODE_H__
  37
  38 #include <sys/vnode.h>
  39 #include <sys/stat.h>
  40 #include <ufs/ufs/ufsmount.h>
  41 #include <miscfs/genfs/genfs_node.h>
  42
  43 struct chfs_inode
  44 {
  45         kmutex_t inode_lock;    /* lock the fields of chfs_inode */
  46
  47         LIST_ENTRY(chfs_inode) hash_entry;      /* Hash chain. */
  48
  49         struct ufsmount *ump;                   /* ufs mount - TODO we should remove it */
  50         struct chfs_mount *chmp;        /* chfs mount point - TODO we should remove it */
  51
  52         struct vnode *vp;       /* vnode associated with this inode */
  53         ino_t ino;                      /* vnode identifier number */
  54
  55         struct vnode *devvp;    /* vnode for block I/O */
  56         dev_t dev;                              /* device associated with the inode */
  57
  58         struct chfs_vnode_cache *chvc;  /* vnode cache of this node */
  59
  60         struct chfs_dirent *fd; /* full dirent of this node */
  61 //      struct chfs_dirent *dents;      /* directory entries */
  62         struct chfs_dirent_list dents;
  63
  64         struct rb_tree fragtree;                /* fragtree of inode */
  65
  66         uint64_t version;                       /* version number */
  67         //uint64_t highest_version;     /* highest vers. num. (used at data nodes) */
  68
  69         uint32_t mode;          /* mode */
  70         //int16_t nlink;                /* link count */
  71         uint64_t size;          /* file byte count */
  72         uint64_t write_size;    /* increasing while write the file out to the flash */
  73         uint32_t uid;           /* file owner */
  74         uint32_t gid;           /* file group */
  75         uint32_t atime;         /* access time */
  76         uint32_t mtime;         /* modify time */
  77         uint32_t ctime;         /* creation time */
  78
  79         uint32_t iflag;         /* flags, see below */
  80         uint32_t flags;         /* status flags (chflags) */
  81
  82         dev_t rdev;                     /* used if type is VCHR or VBLK or VFIFO*/
  83         char *target;           /* used if type is VLNK */
  84 };
  85
  86 /* These flags are kept in chfs_inode->iflag. */
  87 #define IN_ACCESS       0x0001          /* Access time update request. */
  88 #define IN_CHANGE       0x0002          /* Inode change time update request. */
  89 #define IN_UPDATE       0x0004          /* Inode was written to; update mtime. */
  90 #define IN_MODIFY       0x2000          /* Modification time update request. */
  91 #define IN_MODIFIED     0x0008          /* Inode has been modified. */
  92 #define IN_ACCESSED     0x0010          /* Inode has been accessed. */
  93 #define IN_RENAME       0x0020          /* Inode is being renamed. */
  94 #define IN_SHLOCK       0x0040          /* File has shared lock. */
  95 #define IN_EXLOCK       0x0080          /* File has exclusive lock. */
  96 #define IN_CLEANING     0x0100          /* LFS: file is being cleaned */
  97 #define IN_ADIROP       0x0200          /* LFS: dirop in progress */
  98 #define IN_SPACECOUNTED 0x0400          /* Blocks to be freed in free count. */
  99 #define IN_PAGING       0x1000          /* LFS: file is on paging queue */
 100
 101
 102 #ifdef VTOI
 103 # undef VTOI
 104 #endif
 105 #ifdef ITOV
 106 # undef ITOV
 107 #endif
 108
 109 #define VTOI(vp)        ((struct chfs_inode *)(vp)->v_data)
 110 #define ITOV(ip)        ((ip)->vp)
 111
 112 /* copied from ufs_dinode.h */
 113 #define NDADDR  12                      /* Direct addresses in inode. */
 114
 115 #define ROOTINO ((ino_t)2)
 116
 117 /* File permissions. */
 118 #define IEXEC           0000100         /* Executable. */
 119 #define IWRITE          0000200         /* Writable. */
 120 #define IREAD           0000400         /* Readable. */
 121 #define ISVTX           0001000         /* Sticky bit. */
 122 #define ISGID           0002000         /* Set-gid. */
 123 #define ISUID           0004000         /* Set-uid. */
 124
 125 /* File types. */
 126 #define IFMT            0170000         /* Mask of file type. */
 127 #define IFIFO           0010000         /* Named pipe (fifo). */
 128 #define IFCHR           0020000         /* Character device. */
 129 #define IFDIR           0040000         /* Directory file. */
 130 #define IFBLK           0060000         /* Block device. */
 131 #define IFREG           0100000         /* Regular file. */
 132 #define IFLNK           0120000         /* Symbolic link. */
 133 #define IFSOCK          0140000         /* UNIX domain socket. */
 134 #define IFWHT           0160000         /* Whiteout. */
 135
 136 #endif /* __CHFS_INODE_H__ */