chfs_inode.h revision 1.6
1 /* $NetBSD: chfs_inode.h,v 1.6 2012/10/19 12:44:39 ttoth Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Department of Software Engineering, 5 * University of Szeged, Hungary 6 * Copyright (C) 2010 Tamas Toth <ttoth (at) inf.u-szeged.hu> 7 * Copyright (C) 2010 Adam Hoka <ahoka (at) 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 #ifdef _KERNEL 39 #include <sys/vnode.h> 40 #include <sys/stat.h> 41 #include <ufs/ufs/ufsmount.h> 42 #include <miscfs/genfs/genfs_node.h> 43 #endif /* _KERNEL */ 44 45 #define CHFS_ROOTINO 2 46 47 /* chfs file types */ 48 enum chtype { 49 CHT_BLANK, /* empty type */ 50 CHT_REG, /* regular file */ 51 CHT_DIR, /* directory */ 52 CHT_BLK, /* block device */ 53 CHT_CHR, /* character device */ 54 CHT_LNK, /* link */ 55 CHT_SOCK, /* socket */ 56 CHT_FIFO, /* fifo */ 57 CHT_BAD /* bad type */ 58 }; 59 60 /* these macros are needed because the compatibility */ 61 #define CHTTOVT(ch_type) (enum vtype)(ch_type) 62 #define VTTOCHT(v_type) (enum chtype)(v_type) 63 64 /* vtype replaced with chtype, these are only for backward compatibility */ 65 static const enum chtype iftocht_tab[16] = { 66 CHT_BLANK, CHT_FIFO, CHT_CHR, CHT_BLANK, 67 CHT_DIR, CHT_BLANK, CHT_BLK, CHT_BLANK, 68 CHT_REG, CHT_BLANK, CHT_LNK, CHT_BLANK, 69 CHT_SOCK, CHT_BLANK, CHT_BLANK, CHT_BAD, 70 }; 71 72 #define IFTOCHT(mode) (iftocht_tab[((mode) & S_IFMT) >> 12]) 73 74 #ifdef _KERNEL 75 struct chfs_inode 76 { 77 struct genfs_node gnode; 78 kmutex_t inode_lock; /* lock the fields of chfs_inode */ 79 80 LIST_ENTRY(chfs_inode) hash_entry; /* hash chain */ 81 82 struct ufsmount *ump; /* ufs mount - TODO we should remove it */ 83 struct chfs_mount *chmp; /* chfs mount point - TODO we should remove it */ 84 85 struct vnode *vp; /* vnode associated with this inode */ 86 ino_t ino; /* vnode identifier number */ 87 88 struct vnode *devvp; /* vnode for block I/O */ 89 dev_t dev; /* device associated with the inode */ 90 91 struct chfs_vnode_cache *chvc; /* vnode cache of this node */ 92 93 struct chfs_dirent *fd; /* full dirent of this node */ 94 struct chfs_dirent_list dents; 95 96 struct rb_tree fragtree; /* fragtree of inode */ 97 98 uint64_t version; /* version number */ 99 100 uint32_t mode; /* mode */ 101 enum chtype ch_type; /* chfs file type */ 102 uint64_t size; /* file byte count */ 103 uint64_t write_size; /* increasing while write the file out to the flash */ 104 uint32_t uid; /* file owner */ 105 uint32_t gid; /* file group */ 106 uint32_t atime; /* access time */ 107 uint32_t mtime; /* modify time */ 108 uint32_t ctime; /* creation time */ 109 110 uint32_t iflag; /* flags, see below */ 111 uint32_t flags; /* status flags (chflags) */ 112 113 dev_t rdev; /* used if type is VCHR or VBLK or VFIFO*/ 114 char *target; /* used if type is VLNK */ 115 }; 116 117 /* These flags are kept in chfs_inode->iflag. */ 118 #define IN_ACCESS 0x0001 /* Access time update request. */ 119 #define IN_CHANGE 0x0002 /* Inode change time update request. */ 120 #define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */ 121 #define IN_MODIFY 0x2000 /* Modification time update request. */ 122 #define IN_MODIFIED 0x0008 /* Inode has been modified. */ 123 #define IN_ACCESSED 0x0010 /* Inode has been accessed. */ 124 #define IN_RENAME 0x0020 /* Inode is being renamed. */ 125 #define IN_SHLOCK 0x0040 /* File has shared lock. */ 126 #define IN_EXLOCK 0x0080 /* File has exclusive lock. */ 127 #define IN_CLEANING 0x0100 /* LFS: file is being cleaned */ 128 #define IN_ADIROP 0x0200 /* LFS: dirop in progress */ 129 #define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */ 130 #define IN_PAGING 0x1000 /* LFS: file is on paging queue */ 131 132 133 #ifdef VTOI 134 # undef VTOI 135 #endif 136 #ifdef ITOV 137 # undef ITOV 138 #endif 139 140 /* struct vnode to struct chfs_inode */ 141 #define VTOI(vp) ((struct chfs_inode *)(vp)->v_data) 142 /* struct chfs_inode to struct vnode */ 143 #define ITOV(ip) ((ip)->vp) 144 145 /* copied from ufs_dinode.h */ 146 #define NDADDR 12 /* Direct addresses in inode. */ 147 148 #define ROOTINO ((ino_t)2) 149 150 /* File permissions. */ 151 #define IEXEC 0000100 /* Executable. */ 152 #define IWRITE 0000200 /* Writable. */ 153 #define IREAD 0000400 /* Readable. */ 154 #define ISVTX 0001000 /* Sticky bit. */ 155 #define ISGID 0002000 /* Set-gid. */ 156 #define ISUID 0004000 /* Set-uid. */ 157 158 /* File types. */ 159 #define IFMT 0170000 /* Mask of file type. */ 160 #define IFIFO 0010000 /* Named pipe (fifo). */ 161 #define IFCHR 0020000 /* Character device. */ 162 #define IFDIR 0040000 /* Directory file. */ 163 #define IFBLK 0060000 /* Block device. */ 164 #define IFREG 0100000 /* Regular file. */ 165 #define IFLNK 0120000 /* Symbolic link. */ 166 #define IFSOCK 0140000 /* UNIX domain socket. */ 167 #define IFWHT 0160000 /* Whiteout. */ 168 169 #endif /* _KERNEL */ 170 #endif /* __CHFS_INODE_H__ */ 171
Indexes created Thu Sep 25 16:09:42 GMT 2025