direntry.h revision 139776
1/* $FreeBSD: head/sys/fs/msdosfs/direntry.h 139776 2005-01-06 18:10:42Z imp $ */ 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 */ 54struct 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 deLowerCase; /* NT VFAT lower case flags */ 69#define LCASE_BASE 0x08 /* filename base in lower case */ 70#define LCASE_EXT 0x10 /* filename extension in lower case */ 71 u_int8_t deCHundredth; /* hundredth of seconds in CTime */ 72 u_int8_t deCTime[2]; /* create time */ 73 u_int8_t deCDate[2]; /* create date */ 74 u_int8_t deADate[2]; /* access date */ 75 u_int8_t deHighClust[2]; /* high bytes of cluster number */ 76 u_int8_t deMTime[2]; /* last update time */ 77 u_int8_t deMDate[2]; /* last update date */ 78 u_int8_t deStartCluster[2]; /* starting cluster of file */ 79 u_int8_t deFileSize[4]; /* size of file in bytes */ 80}; 81 82/* 83 * Structure of a Win95 long name directory entry 84 */ 85struct winentry { 86 u_int8_t weCnt; 87#define WIN_LAST 0x40 88#define WIN_CNT 0x3f 89 u_int8_t wePart1[10]; 90 u_int8_t weAttributes; 91#define ATTR_WIN95 0x0f 92 u_int8_t weReserved1; 93 u_int8_t weChksum; 94 u_int8_t wePart2[12]; 95 u_int16_t weReserved2; 96 u_int8_t wePart3[4]; 97}; 98#define WIN_CHARS 13 /* Number of chars per winentry */ 99 100/* 101 * Maximum number of winentries for a filename. 102 */ 103#define WIN_MAXSUBENTRIES 20 104 105/* 106 * Maximum filename length in Win95 107 * Note: Must be < sizeof(dirent.d_name) 108 */ 109#define WIN_MAXLEN 255 110 111/* 112 * This is the format of the contents of the deTime field in the direntry 113 * structure. 114 * We don't use bitfields because we don't know how compilers for 115 * arbitrary machines will lay them out. 116 */ 117#define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 118#define DT_2SECONDS_SHIFT 0 119#define DT_MINUTES_MASK 0x7E0 /* minutes */ 120#define DT_MINUTES_SHIFT 5 121#define DT_HOURS_MASK 0xF800 /* hours */ 122#define DT_HOURS_SHIFT 11 123 124/* 125 * This is the format of the contents of the deDate field in the direntry 126 * structure. 127 */ 128#define DD_DAY_MASK 0x1F /* day of month */ 129#define DD_DAY_SHIFT 0 130#define DD_MONTH_MASK 0x1E0 /* month */ 131#define DD_MONTH_SHIFT 5 132#define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 133#define DD_YEAR_SHIFT 9 134 135#ifdef _KERNEL 136struct dirent; 137struct msdosfsmount; 138 139char *mbnambuf_flush(struct dirent *dp); 140void mbnambuf_init(void); 141void mbnambuf_write(char *name, int id); 142void unix2dostime(struct timespec *tsp, u_int16_t *ddp, 143 u_int16_t *dtp, u_int8_t *dhp); 144void dos2unixtime(u_int dd, u_int dt, u_int dh, struct timespec *tsp); 145int dos2unixfn(u_char dn[11], u_char *un, int lower, 146 struct msdosfsmount *pmp); 147int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen, 148 struct msdosfsmount *pmp); 149int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt, 150 int chksum, struct msdosfsmount *pmp); 151int winChkName(const u_char *un, size_t unlen, int chksum, 152 struct msdosfsmount *pmp); 153int win2unixfn(struct winentry *wep, int chksum, struct msdosfsmount *pmp); 154u_int8_t winChksum(u_int8_t *name); 155int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp); 156size_t winLenFixup(const u_char *un, size_t unlen); 157#endif /* _KERNEL */ 158