root / lab4 / .minix-src / include / isofs / cd9660 / cd9660_node.h @ 14
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1 | 13 | up20180614 | /* $NetBSD: cd9660_node.h,v 1.16 2014/06/16 09:55:49 hannken Exp $ */
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2 | |||
3 | /*-
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4 | * Copyright (c) 1994
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5 | * The Regents of the University of California. All rights reserved.
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6 | *
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7 | * This code is derived from software contributed to Berkeley
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8 | * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
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9 | * Support code is derived from software contributed to Berkeley
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10 | * by Atsushi Murai (amurai@spec.co.jp).
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11 | *
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12 | * Redistribution and use in source and binary forms, with or without
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13 | * modification, are permitted provided that the following conditions
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14 | * are met:
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15 | * 1. Redistributions of source code must retain the above copyright
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16 | * notice, this list of conditions and the following disclaimer.
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17 | * 2. Redistributions in binary form must reproduce the above copyright
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18 | * notice, this list of conditions and the following disclaimer in the
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19 | * documentation and/or other materials provided with the distribution.
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20 | * 3. Neither the name of the University nor the names of its contributors
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21 | * may be used to endorse or promote products derived from this software
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22 | * without specific prior written permission.
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23 | *
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24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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34 | * SUCH DAMAGE.
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35 | *
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36 | * @(#)cd9660_node.h 8.6 (Berkeley) 5/14/95
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37 | */
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38 | |||
39 | #ifndef _ISOFS_CD9660_CD9660_NODE_H_
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40 | #define _ISOFS_CD9660_CD9660_NODE_H_
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41 | |||
42 | #include <miscfs/genfs/genfs_node.h> |
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43 | |||
44 | /*
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45 | * Theoretically, directories can be more than 2Gb in length,
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46 | * however, in practice this seems unlikely. So, we define
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47 | * the type doff_t as a long to keep down the cost of doing
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48 | * lookup on a 32-bit machine. If you are porting to a 64-bit
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49 | * architecture, you should make doff_t the same as off_t.
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50 | */
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51 | #define doff_t long |
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52 | |||
53 | typedef struct { |
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54 | struct timespec iso_atime; /* time of last access */ |
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55 | struct timespec iso_mtime; /* time of last modification */ |
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56 | struct timespec iso_ctime; /* time file changed */ |
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57 | u_short iso_mode; /* files access mode and type */
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58 | uid_t iso_uid; /* owner user id */
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59 | gid_t iso_gid; /* owner group id */
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60 | short iso_links; /* links of file */ |
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61 | dev_t iso_rdev; /* Major/Minor number for special */
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62 | } ISO_RRIP_INODE; |
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63 | |||
64 | struct iso_node {
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65 | struct genfs_node i_gnode;
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66 | struct vnode *i_vnode; /* vnode associated with this inode */ |
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67 | struct vnode *i_devvp; /* vnode for block I/O */ |
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68 | u_long i_flag; /* see below */
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69 | dev_t i_dev; /* device where inode resides */
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70 | ino_t i_number; /* the identity of the inode */
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71 | /* we use the actual starting block of the file */
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72 | struct iso_mnt *i_mnt; /* filesystem associated with this inode */ |
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73 | struct lockf *i_lockf; /* head of byte-level lock list */ |
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74 | doff_t i_endoff; /* end of useful stuff in directory */
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75 | doff_t i_diroff; /* offset in dir, where we found last entry */
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76 | doff_t i_offset; /* offset of free space in directory */
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77 | ino_t i_ino; /* inode number of found directory */
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78 | |||
79 | unsigned long iso_extent; /* extent of file */ |
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80 | unsigned long i_size; |
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81 | unsigned long iso_start; /* actual start of data of file (may be different */ |
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82 | /* from iso_extent, if file has extended attributes) */
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83 | ISO_RRIP_INODE inode; |
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84 | }; |
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85 | |||
86 | #define i_forw i_chain[0] |
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87 | #define i_back i_chain[1] |
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88 | |||
89 | /* flags */
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90 | #define IN_ACCESS 0x0020 /* inode access time to be updated */ |
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91 | |||
92 | #define VTOI(vp) ((struct iso_node *)(vp)->v_data) |
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93 | #define ITOV(ip) ((ip)->i_vnode)
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94 | |||
95 | #ifdef _KERNEL
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96 | /*
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97 | * Prototypes for ISOFS vnode operations
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98 | */
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99 | int cd9660_lookup(void *); |
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100 | #define cd9660_open genfs_nullop
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101 | #define cd9660_close genfs_nullop
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102 | int cd9660_access(void *); |
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103 | int cd9660_getattr(void *); |
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104 | int cd9660_read(void *); |
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105 | #define cd9660_ioctl genfs_enoioctl
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106 | #define cd9660_poll genfs_poll
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107 | #define cd9660_mmap genfs_mmap
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108 | #define cd9660_seek genfs_seek
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109 | int cd9660_readdir(void *); |
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110 | int cd9660_readlink(void *); |
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111 | #define cd9660_abortop genfs_abortop
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112 | int cd9660_inactive(void *); |
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113 | int cd9660_reclaim(void *); |
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114 | int cd9660_link(void *); |
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115 | int cd9660_symlink(void *); |
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116 | int cd9660_bmap(void *); |
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117 | int cd9660_lock(void *); |
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118 | int cd9660_unlock(void *); |
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119 | int cd9660_strategy(void *); |
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120 | int cd9660_print(void *); |
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121 | int cd9660_islocked(void *); |
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122 | int cd9660_pathconf(void *); |
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123 | int cd9660_setattr(void *); |
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124 | |||
125 | int cd9660_blkatoff(struct vnode *, off_t, char **, struct buf **); |
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126 | void cd9660_defattr(struct iso_directory_record *, |
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127 | struct iso_node *, struct buf *); |
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128 | void cd9660_deftstamp(struct iso_directory_record *, |
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129 | struct iso_node *, struct buf *); |
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130 | int cd9660_tstamp_conv7(const u_char *, struct timespec *); |
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131 | int cd9660_tstamp_conv17(const u_char *, struct timespec *); |
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132 | |||
133 | #endif /* _KERNEL */ |
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134 | #endif /* _ISOFS_CD9660_CD9660_NODE_H_ */ |