sys/vfs/msdosfs/direntry.h

   1 /* $FreeBSD: src/sys/msdosfs/direntry.h,v 1.15 1999/12/29 04:54:52 peter Exp $ */
   2 /* $DragonFly: src/sys/vfs/msdosfs/direntry.h,v 1.4 2005/08/19 14:02:39 joerg Exp $ */
   3 /*      $NetBSD: direntry.h,v 1.14 1997/11/17 15:36:32 ws Exp $ */
   4
   5 /*-
   6  * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
   7  * Copyright (C) 1994, 1995, 1997 TooLs GmbH.
   8  * All rights reserved.
   9  * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below).
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. All advertising materials mentioning features or use of this software
  20  *    must display the following acknowledgement:
  21  *      This product includes software developed by TooLs GmbH.
  22  * 4. The name of TooLs GmbH may not be used to endorse or promote products
  23  *    derived from this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
  26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  30  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  31  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  33  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  34  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36 /*
  37  * Written by Paul Popelka (paulp@uts.amdahl.com)
  38  *
  39  * You can do anything you want with this software, just don't say you wrote
  40  * it, and don't remove this notice.
  41  *
  42  * This software is provided "as is".
  43  *
  44  * The author supplies this software to be publicly redistributed on the
  45  * understanding that the author is not responsible for the correct
  46  * functioning of this software in any circumstances and is not liable for
  47  * any damages caused by this software.
  48  *
  49  * October 1992
  50  */
  51
  52 /*
  53  * Structure of a dos directory entry.
  54  */
  55 struct direntry {
  56         u_int8_t        deName[8];      /* filename, blank filled */
  57 #define SLOT_EMPTY      0x00            /* slot has never been used */
  58 #define SLOT_E5         0x05            /* the real value is 0xe5 */
  59 #define SLOT_DELETED    0xe5            /* file in this slot deleted */
  60         u_int8_t        deExtension[3]; /* extension, blank filled */
  61         u_int8_t        deAttributes;   /* file attributes */
  62 #define ATTR_NORMAL     0x00            /* normal file */
  63 #define ATTR_READONLY   0x01            /* file is readonly */
  64 #define ATTR_HIDDEN     0x02            /* file is hidden */
  65 #define ATTR_SYSTEM     0x04            /* file is a system file */
  66 #define ATTR_VOLUME     0x08            /* entry is a volume label */
  67 #define ATTR_DIRECTORY  0x10            /* entry is a directory name */
  68 #define ATTR_ARCHIVE    0x20            /* file is new or modified */
  69         u_int8_t        deLowerCase;    /* NT VFAT lower case flags */
  70 #define LCASE_BASE      0x08            /* filename base in lower case */
  71 #define LCASE_EXT       0x10            /* filename extension in lower case */
  72         u_int8_t        deCHundredth;   /* hundredth of seconds in CTime */
  73         u_int8_t        deCTime[2];     /* create time */
  74         u_int8_t        deCDate[2];     /* create date */
  75         u_int8_t        deADate[2];     /* access date */
  76         u_int8_t        deHighClust[2]; /* high bytes of cluster number */
  77         u_int8_t        deMTime[2];     /* last update time */
  78         u_int8_t        deMDate[2];     /* last update date */
  79         u_int8_t        deStartCluster[2]; /* starting cluster of file */
  80         u_int8_t        deFileSize[4];  /* size of file in bytes */
  81 };
  82
  83 /*
  84  * Structure of a Win95 long name directory entry
  85  */
  86 struct winentry {
  87         u_int8_t        weCnt;
  88 #define WIN_LAST        0x40
  89 #define WIN_CNT         0x3f
  90         u_int8_t        wePart1[10];
  91         u_int8_t        weAttributes;
  92 #define ATTR_WIN95      0x0f
  93         u_int8_t        weReserved1;
  94         u_int8_t        weChksum;
  95         u_int8_t        wePart2[12];
  96         u_int16_t       weReserved2;
  97         u_int8_t        wePart3[4];
  98 };
  99 #define WIN_CHARS       13      /* Number of chars per winentry */
 100
 101 /*
 102  * Maximum filename length in Win95
 103  * Note: Must be < sizeof(dirent.d_name)
 104  */
 105 #define WIN_MAXLEN      255
 106
 107 /*
 108  * This is the format of the contents of the deTime field in the direntry
 109  * structure.
 110  * We don't use bitfields because we don't know how compilers for
 111  * arbitrary machines will lay them out.
 112  */
 113 #define DT_2SECONDS_MASK        0x1F    /* seconds divided by 2 */
 114 #define DT_2SECONDS_SHIFT       0
 115 #define DT_MINUTES_MASK         0x7E0   /* minutes */
 116 #define DT_MINUTES_SHIFT        5
 117 #define DT_HOURS_MASK           0xF800  /* hours */
 118 #define DT_HOURS_SHIFT          11
 119
 120 /*
 121  * This is the format of the contents of the deDate field in the direntry
 122  * structure.
 123  */
 124 #define DD_DAY_MASK             0x1F    /* day of month */
 125 #define DD_DAY_SHIFT            0
 126 #define DD_MONTH_MASK           0x1E0   /* month */
 127 #define DD_MONTH_SHIFT          5
 128 #define DD_YEAR_MASK            0xFE00  /* year - 1980 */
 129 #define DD_YEAR_SHIFT           9
 130
 131 #ifdef _KERNEL
 132 struct dirent;
 133 void unix2dostime (struct timespec *tsp, u_int16_t *ddp,
 134              u_int16_t *dtp, u_int8_t *dhp);
 135 void dos2unixtime (u_int dd, u_int dt, u_int dh, struct timespec *tsp);
 136 int dos2unixfn (u_char dn[11], u_char *un, int lower, int d2u_loaded, u_int8_t *d2u, int ul_loaded, u_int8_t *ul);
 137 int unix2dosfn (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);
 138 int unix2winfn (const u_char *un, int unlen, struct winentry *wep, int cnt, int chksum, int table_loaded, u_int16_t *u2w);
 139 int winChkName (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);
 140 int win2unixfn (struct winentry *wep, char *d_name, uint16_t *d_namlen, int chksum, int table_loaded, u_int16_t *u2w);
 141 u_int8_t winChksum (u_int8_t *name);
 142 int winSlotCnt (const u_char *un, int unlen);
 143 int winLenFixup (const u_char *un, int unlen);
 144 #endif  /* _KERNEL */