1 /* $FreeBSD: src/sys/msdosfs/direntry.h,v 1.15 1999/12/29 04:54:52 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 #ifndef _VFS_MSDOSFS_DIRENTRY_H_ 52 #define _VFS_MSDOSFS_DIRENTRY_H_ 53 54 /* 55 * Structure of a dos directory entry. 56 */ 57 struct direntry { 58 u_int8_t deName[11]; /* filename, blank filled */ 59 #define SLOT_EMPTY 0x00 /* slot has never been used */ 60 #define SLOT_E5 0x05 /* the real value is 0xe5 */ 61 #define SLOT_DELETED 0xe5 /* file in this slot deleted */ 62 u_int8_t deAttributes; /* file attributes */ 63 #define ATTR_NORMAL 0x00 /* normal file */ 64 #define ATTR_READONLY 0x01 /* file is readonly */ 65 #define ATTR_HIDDEN 0x02 /* file is hidden */ 66 #define ATTR_SYSTEM 0x04 /* file is a system file */ 67 #define ATTR_VOLUME 0x08 /* entry is a volume label */ 68 #define ATTR_DIRECTORY 0x10 /* entry is a directory name */ 69 #define ATTR_ARCHIVE 0x20 /* file is new or modified */ 70 u_int8_t deLowerCase; /* NT VFAT lower case flags */ 71 #define LCASE_BASE 0x08 /* filename base in lower case */ 72 #define LCASE_EXT 0x10 /* filename extension in lower case */ 73 u_int8_t deCHundredth; /* hundredth of seconds in CTime */ 74 u_int8_t deCTime[2]; /* create time */ 75 u_int8_t deCDate[2]; /* create date */ 76 u_int8_t deADate[2]; /* access date */ 77 u_int8_t deHighClust[2]; /* high bytes of cluster number */ 78 u_int8_t deMTime[2]; /* last update time */ 79 u_int8_t deMDate[2]; /* last update date */ 80 u_int8_t deStartCluster[2]; /* starting cluster of file */ 81 u_int8_t deFileSize[4]; /* size of file in bytes */ 82 }; 83 84 /* 85 * Structure of a Win95 long name directory entry 86 */ 87 struct winentry { 88 u_int8_t weCnt; 89 #define WIN_LAST 0x40 90 #define WIN_CNT 0x3f 91 u_int8_t wePart1[10]; 92 u_int8_t weAttributes; 93 #define ATTR_WIN95 0x0f 94 u_int8_t weReserved1; 95 u_int8_t weChksum; 96 u_int8_t wePart2[12]; 97 u_int16_t weReserved2; 98 u_int8_t wePart3[4]; 99 }; 100 #define WIN_CHARS 13 /* Number of chars per winentry */ 101 102 /* 103 * Maximum filename length in Win95 104 * Note: Must be < sizeof(dirent.d_name) 105 */ 106 #define WIN_MAXLEN 255 107 108 /* 109 * This is the format of the contents of the deTime field in the direntry 110 * structure. 111 * We don't use bitfields because we don't know how compilers for 112 * arbitrary machines will lay them out. 113 */ 114 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 115 #define DT_2SECONDS_SHIFT 0 116 #define DT_MINUTES_MASK 0x7E0 /* minutes */ 117 #define DT_MINUTES_SHIFT 5 118 #define DT_HOURS_MASK 0xF800 /* hours */ 119 #define DT_HOURS_SHIFT 11 120 121 /* 122 * This is the format of the contents of the deDate field in the direntry 123 * structure. 124 */ 125 #define DD_DAY_MASK 0x1F /* day of month */ 126 #define DD_DAY_SHIFT 0 127 #define DD_MONTH_MASK 0x1E0 /* month */ 128 #define DD_MONTH_SHIFT 5 129 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 130 #define DD_YEAR_SHIFT 9 131 132 #ifdef _KERNEL 133 struct mbnambuf { 134 size_t nb_len; 135 int nb_last_id; 136 char nb_buf[WIN_MAXLEN + 1]; 137 }; 138 struct dirent; 139 struct msdosfsmount; 140 141 char *mbnambuf_flush(struct mbnambuf *nbp, char *d_name, u_int16_t *d_namlen); 142 void mbnambuf_init(struct mbnambuf *nbp); 143 void mbnambuf_write(struct mbnambuf *nbp, char *name, int id); 144 void unix2dostime (struct timespec *tsp, u_int16_t *ddp, 145 u_int16_t *dtp, u_int8_t *dhp); 146 void dos2unixtime (u_int dd, u_int dt, u_int dh, struct timespec *tsp); 147 int dos2unixfn (u_char dn[11], u_char *un, int lower, struct msdosfsmount *pmp); 148 int unix2dosfn (const u_char *un, u_char dn[12], size_t unlen, u_int gen, struct msdosfsmount *pmp); 149 int unix2winfn (const u_char *un, size_t unlen, struct winentry *wep, int cnt, int chksum, struct msdosfsmount *pmp); 150 int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen, 151 int chksum, struct msdosfsmount *pmp); 152 int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum, 153 struct msdosfsmount *pmp); 154 u_int8_t winChksum (u_int8_t *name); 155 int winSlotCnt (const u_char *un, size_t unlen, struct msdosfsmount *pmp); 156 size_t winLenFixup (const u_char *un, size_t unlen); 157 #endif /* _KERNEL */ 158 159 #endif /* !_VFS_MSDOSFS_DIRENTRY_H_ */ 160