1 /* $FreeBSD$ */ 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 #ifndef _FS_MSDOSFS_DIRENTRY_H_ 51 #define _FS_MSDOSFS_DIRENTRY_H_ 52 53 /* 54 * Structure of a dos directory entry. 55 */ 56 struct direntry { 57 uint8_t deName[11]; /* filename, blank filled */ 58 #define SLOT_EMPTY 0x00 /* slot has never been used */ 59 #define SLOT_E5 0x05 /* the real value is 0xe5 */ 60 #define SLOT_DELETED 0xe5 /* file in this slot deleted */ 61 uint8_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 uint8_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 uint8_t deCHundredth; /* hundredth of seconds in CTime */ 73 uint8_t deCTime[2]; /* create time */ 74 uint8_t deCDate[2]; /* create date */ 75 uint8_t deADate[2]; /* access date */ 76 uint8_t deHighClust[2]; /* high bytes of cluster number */ 77 uint8_t deMTime[2]; /* last update time */ 78 uint8_t deMDate[2]; /* last update date */ 79 uint8_t deStartCluster[2]; /* starting cluster of file */ 80 uint8_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 uint8_t weCnt; 88 #define WIN_LAST 0x40 89 #define WIN_CNT 0x3f 90 uint8_t wePart1[10]; 91 uint8_t weAttributes; 92 #define ATTR_WIN95 0x0f 93 uint8_t weReserved1; 94 uint8_t weChksum; 95 uint8_t wePart2[12]; 96 uint16_t weReserved2; 97 uint8_t wePart3[4]; 98 }; 99 #define WIN_CHARS 13 /* Number of chars per winentry */ 100 101 /* 102 * Maximum number of winentries for a filename. 103 */ 104 #define WIN_MAXSUBENTRIES 20 105 106 /* 107 * Maximum filename length in Win95 108 * Note: Must be < sizeof(dirent.d_name) 109 */ 110 #define WIN_MAXLEN 255 111 112 /* 113 * This is the format of the contents of the deTime field in the direntry 114 * structure. 115 * We don't use bitfields because we don't know how compilers for 116 * arbitrary machines will lay them out. 117 */ 118 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 119 #define DT_2SECONDS_SHIFT 0 120 #define DT_MINUTES_MASK 0x7E0 /* minutes */ 121 #define DT_MINUTES_SHIFT 5 122 #define DT_HOURS_MASK 0xF800 /* hours */ 123 #define DT_HOURS_SHIFT 11 124 125 /* 126 * This is the format of the contents of the deDate field in the direntry 127 * structure. 128 */ 129 #define DD_DAY_MASK 0x1F /* day of month */ 130 #define DD_DAY_SHIFT 0 131 #define DD_MONTH_MASK 0x1E0 /* month */ 132 #define DD_MONTH_SHIFT 5 133 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 134 #define DD_YEAR_SHIFT 9 135 136 #ifdef _KERNEL 137 struct mbnambuf { 138 size_t nb_len; 139 int nb_last_id; 140 char nb_buf[WIN_MAXLEN + 1]; 141 }; 142 143 struct dirent; 144 struct msdosfsmount; 145 146 char *mbnambuf_flush(struct mbnambuf *nbp, struct dirent *dp); 147 void mbnambuf_init(struct mbnambuf *nbp); 148 int mbnambuf_write(struct mbnambuf *nbp, char *name, int id); 149 int dos2unixfn(u_char dn[11], u_char *un, int lower, 150 struct msdosfsmount *pmp); 151 int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen, 152 struct msdosfsmount *pmp); 153 int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt, 154 int chksum, struct msdosfsmount *pmp); 155 int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen, 156 int chksum, struct msdosfsmount *pmp); 157 int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum, 158 struct msdosfsmount *pmp); 159 uint8_t winChksum(uint8_t *name); 160 int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp); 161 size_t winLenFixup(const u_char *un, size_t unlen); 162 #endif /* _KERNEL */ 163 #endif /* !_FS_MSDOSFS_DIRENTRY_H_ */ 164