1 /* $FreeBSD$ */ 2 /* $NetBSD: direntry.h,v 1.14 1997/11/17 15:36:32 ws Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-4-Clause 6 * 7 * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank. 8 * Copyright (C) 1994, 1995, 1997 TooLs GmbH. 9 * All rights reserved. 10 * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below). 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by TooLs GmbH. 23 * 4. The name of TooLs GmbH may not be used to endorse or promote products 24 * derived from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 31 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 32 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 33 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 34 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 35 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 /*- 38 * Written by Paul Popelka (paulp@uts.amdahl.com) 39 * 40 * You can do anything you want with this software, just don't say you wrote 41 * it, and don't remove this notice. 42 * 43 * This software is provided "as is". 44 * 45 * The author supplies this software to be publicly redistributed on the 46 * understanding that the author is not responsible for the correct 47 * functioning of this software in any circumstances and is not liable for 48 * any damages caused by this software. 49 * 50 * October 1992 51 */ 52 #ifndef _FS_MSDOSFS_DIRENTRY_H_ 53 #define _FS_MSDOSFS_DIRENTRY_H_ 54 55 /* 56 * Structure of a dos directory entry. 57 */ 58 struct direntry { 59 uint8_t deName[11]; /* filename, blank filled */ 60 #define SLOT_EMPTY 0x00 /* slot has never been used */ 61 #define SLOT_E5 0x05 /* the real value is 0xe5 */ 62 #define SLOT_DELETED 0xe5 /* file in this slot deleted */ 63 uint8_t deAttributes; /* file attributes */ 64 #define ATTR_NORMAL 0x00 /* normal file */ 65 #define ATTR_READONLY 0x01 /* file is readonly */ 66 #define ATTR_HIDDEN 0x02 /* file is hidden */ 67 #define ATTR_SYSTEM 0x04 /* file is a system file */ 68 #define ATTR_VOLUME 0x08 /* entry is a volume label */ 69 #define ATTR_DIRECTORY 0x10 /* entry is a directory name */ 70 #define ATTR_ARCHIVE 0x20 /* file is new or modified */ 71 uint8_t deLowerCase; /* NT VFAT lower case flags */ 72 #define LCASE_BASE 0x08 /* filename base in lower case */ 73 #define LCASE_EXT 0x10 /* filename extension in lower case */ 74 uint8_t deCHundredth; /* hundredth of seconds in CTime */ 75 uint8_t deCTime[2]; /* create time */ 76 uint8_t deCDate[2]; /* create date */ 77 uint8_t deADate[2]; /* access date */ 78 uint8_t deHighClust[2]; /* high bytes of cluster number */ 79 uint8_t deMTime[2]; /* last update time */ 80 uint8_t deMDate[2]; /* last update date */ 81 uint8_t deStartCluster[2]; /* starting cluster of file */ 82 uint8_t deFileSize[4]; /* size of file in bytes */ 83 }; 84 85 /* 86 * Structure of a Win95 long name directory entry 87 */ 88 struct winentry { 89 uint8_t weCnt; 90 #define WIN_LAST 0x40 91 #define WIN_CNT 0x3f 92 uint8_t wePart1[10]; 93 uint8_t weAttributes; 94 #define ATTR_WIN95 0x0f 95 uint8_t weReserved1; 96 uint8_t weChksum; 97 uint8_t wePart2[12]; 98 uint16_t weReserved2; 99 uint8_t wePart3[4]; 100 }; 101 #define WIN_CHARS 13 /* Number of chars per winentry */ 102 103 /* 104 * Maximum filename length in Win95 105 * Note: Must be < sizeof(dirent.d_name) 106 */ 107 #define WIN_MAXLEN 255 108 109 /* 110 * This is the format of the contents of the deTime field in the direntry 111 * structure. 112 * We don't use bitfields because we don't know how compilers for 113 * arbitrary machines will lay them out. 114 */ 115 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 116 #define DT_2SECONDS_SHIFT 0 117 #define DT_MINUTES_MASK 0x7E0 /* minutes */ 118 #define DT_MINUTES_SHIFT 5 119 #define DT_HOURS_MASK 0xF800 /* hours */ 120 #define DT_HOURS_SHIFT 11 121 122 /* 123 * This is the format of the contents of the deDate field in the direntry 124 * structure. 125 */ 126 #define DD_DAY_MASK 0x1F /* day of month */ 127 #define DD_DAY_SHIFT 0 128 #define DD_MONTH_MASK 0x1E0 /* month */ 129 #define DD_MONTH_SHIFT 5 130 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 131 #define DD_YEAR_SHIFT 9 132 133 #if defined(_KERNEL) || defined(MAKEFS) 134 struct mbnambuf { 135 size_t nb_len; 136 int nb_last_id; 137 char nb_buf[WIN_MAXLEN + 1]; 138 }; 139 140 struct dirent; 141 struct msdosfsmount; 142 143 char *mbnambuf_flush(struct mbnambuf *nbp, struct dirent *dp); 144 void mbnambuf_init(struct mbnambuf *nbp); 145 int mbnambuf_write(struct mbnambuf *nbp, char *name, int id); 146 int dos2unixfn(u_char dn[11], u_char *un, int lower, 147 struct msdosfsmount *pmp); 148 int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen, 149 struct msdosfsmount *pmp); 150 int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt, 151 int chksum, struct msdosfsmount *pmp); 152 int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen, 153 int chksum, struct msdosfsmount *pmp); 154 int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum, 155 struct msdosfsmount *pmp); 156 uint8_t winChksum(uint8_t *name); 157 int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp); 158 size_t winLenFixup(const u_char *un, size_t unlen); 159 #endif /* _KERNEL || MAKEFS */ 160 #endif /* !_FS_MSDOSFS_DIRENTRY_H_ */ 161