1 /* $FreeBSD: src/sys/msdosfs/direntry.h,v 1.2.8.2 1999/09/05 08:17:16 peter Exp $ */
2 /* $NetBSD: direntry.h,v 1.14 1997/11/17 15:36:32 ws Exp $ */
3
4 /*-
5 * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
6 * Copyright (C) 1994, 1995, 1997 TooLs GmbH.
7 * All rights reserved.
8 * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below).
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by TooLs GmbH.
21 * 4. The name of TooLs GmbH may not be used to endorse or promote products
22 * derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
29 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
30 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35 /*
36 * Written by Paul Popelka (paulp@uts.amdahl.com)
37 *
38 * You can do anything you want with this software, just don't say you wrote
39 * it, and don't remove this notice.
40 *
41 * This software is provided "as is".
42 *
43 * The author supplies this software to be publicly redistributed on the
44 * understanding that the author is not responsible for the correct
45 * functioning of this software in any circumstances and is not liable for
46 * any damages caused by this software.
47 *
48 * October 1992
49 */
50
51 /*
52 * Structure of a dos directory entry.
53 */
54 struct direntry {
55 u_int8_t deName[8]; /* filename, blank filled */
56 #define SLOT_EMPTY 0x00 /* slot has never been used */
57 #define SLOT_E5 0x05 /* the real value is 0xe5 */
58 #define SLOT_DELETED 0xe5 /* file in this slot deleted */
59 u_int8_t deExtension[3]; /* extension, blank filled */
60 u_int8_t deAttributes; /* file attributes */
61 #define ATTR_NORMAL 0x00 /* normal file */
62 #define ATTR_READONLY 0x01 /* file is readonly */
63 #define ATTR_HIDDEN 0x02 /* file is hidden */
64 #define ATTR_SYSTEM 0x04 /* file is a system file */
65 #define ATTR_VOLUME 0x08 /* entry is a volume label */
66 #define ATTR_DIRECTORY 0x10 /* entry is a directory name */
67 #define ATTR_ARCHIVE 0x20 /* file is new or modified */
68 u_int8_t deReserved[1]; /* reserved */
69 u_int8_t deCHundredth; /* hundredth of seconds in CTime */
70 u_int8_t deCTime[2]; /* create time */
71 u_int8_t deCDate[2]; /* create date */
72 u_int8_t deADate[2]; /* access date */
73 u_int8_t deHighClust[2]; /* high bytes of cluster number */
74 u_int8_t deMTime[2]; /* last update time */
75 u_int8_t deMDate[2]; /* last update date */
76 u_int8_t deStartCluster[2]; /* starting cluster of file */
77 u_int8_t deFileSize[4]; /* size of file in bytes */
78 };
79
80 /*
81 * Structure of a Win95 long name directory entry
82 */
83 struct winentry {
84 u_int8_t weCnt;
85 #define WIN_LAST 0x40
86 #define WIN_CNT 0x3f
87 u_int8_t wePart1[10];
88 u_int8_t weAttributes;
89 #define ATTR_WIN95 0x0f
90 u_int8_t weReserved1;
91 u_int8_t weChksum;
92 u_int8_t wePart2[12];
93 u_int16_t weReserved2;
94 u_int8_t wePart3[4];
95 };
96 #define WIN_CHARS 13 /* Number of chars per winentry */
97
98 /*
99 * Maximum filename length in Win95
100 * Note: Must be < sizeof(dirent.d_name)
101 */
102 #define WIN_MAXLEN 255
103
104 /*
105 * This is the format of the contents of the deTime field in the direntry
106 * structure.
107 * We don't use bitfields because we don't know how compilers for
108 * arbitrary machines will lay them out.
109 */
110 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */
111 #define DT_2SECONDS_SHIFT 0
112 #define DT_MINUTES_MASK 0x7E0 /* minutes */
113 #define DT_MINUTES_SHIFT 5
114 #define DT_HOURS_MASK 0xF800 /* hours */
115 #define DT_HOURS_SHIFT 11
116
117 /*
118 * This is the format of the contents of the deDate field in the direntry
119 * structure.
120 */
121 #define DD_DAY_MASK 0x1F /* day of month */
122 #define DD_DAY_SHIFT 0
123 #define DD_MONTH_MASK 0x1E0 /* month */
124 #define DD_MONTH_SHIFT 5
125 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */
126 #define DD_YEAR_SHIFT 9
127
128 #ifdef KERNEL
129 struct dirent;
130 void unix2dostime __P((struct timespec *tsp, u_int16_t *ddp,
131 u_int16_t *dtp, u_int8_t *dhp));
132 void dos2unixtime __P((u_int dd, u_int dt, u_int dh, struct timespec *tsp));
133 int dos2unixfn __P((u_char dn[11], u_char *un, int lower, int d2u_loaded, u_int8_t *d2u, int ul_loaded, u_int8_t *ul));
134 int unix2dosfn __P((const u_char *un, u_char dn[12], int unlen, u_int gen, int u2d_loaded, u_int8_t *u2d, int lu_loaded, u_int8_t *lu));
135 int unix2winfn __P((const u_char *un, int unlen, struct winentry *wep, int cnt, int chksum, int table_loaded, u_int16_t *u2w));
136 int winChkName __P((const u_char *un, int unlen, struct winentry *wep, int chksum, int u2w_loaded, u_int16_t *u2w, int ul_loaded, u_int8_t *ul));
137 int win2unixfn __P((struct winentry *wep, struct dirent *dp, int chksum, int table_loaded, u_int16_t *u2w));
138 u_int8_t winChksum __P((u_int8_t *name));
139 int winSlotCnt __P((const u_char *un, int unlen));
140 int winLenFixup __P((const u_char *un, int unlen));
141 #endif /* KERNEL */
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