1 /* $NetBSD: direntry.h,v 1.14 1997/11/17 15:36:32 ws Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 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 #ifndef _FS_MSDOSFS_DIRENTRY_H_ 52 #define _FS_MSDOSFS_DIRENTRY_H_ 53 54 /* 55 * Structure of a dos directory entry. 56 */ 57 struct direntry { 58 uint8_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 uint8_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 uint8_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 uint8_t deCHundredth; /* hundredth of seconds in CTime */ 74 uint8_t deCTime[2]; /* create time */ 75 uint8_t deCDate[2]; /* create date */ 76 uint8_t deADate[2]; /* access date */ 77 uint8_t deHighClust[2]; /* high bytes of cluster number */ 78 uint8_t deMTime[2]; /* last update time */ 79 uint8_t deMDate[2]; /* last update date */ 80 uint8_t deStartCluster[2]; /* starting cluster of file */ 81 uint8_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 uint8_t weCnt; 89 #define WIN_LAST 0x40 90 #define WIN_CNT 0x3f 91 uint8_t wePart1[10]; 92 uint8_t weAttributes; 93 #define ATTR_WIN95 0x0f 94 uint8_t weReserved1; 95 uint8_t weChksum; 96 uint8_t wePart2[12]; 97 uint16_t weReserved2; 98 uint8_t wePart3[4]; 99 }; 100 #define WIN_CHARS 13 /* Number of chars per winentry */ 101 102 /* 103 * Maximum number of winentries for a filename. 104 */ 105 #define WIN_MAXSUBENTRIES 20 106 107 /* 108 * Maximum filename length in Win95 109 * Note: Must be < sizeof(dirent.d_name) 110 */ 111 #define WIN_MAXLEN 255 112 113 /* 114 * This is the format of the contents of the deTime field in the direntry 115 * structure. 116 * We don't use bitfields because we don't know how compilers for 117 * arbitrary machines will lay them out. 118 */ 119 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 120 #define DT_2SECONDS_SHIFT 0 121 #define DT_MINUTES_MASK 0x7E0 /* minutes */ 122 #define DT_MINUTES_SHIFT 5 123 #define DT_HOURS_MASK 0xF800 /* hours */ 124 #define DT_HOURS_SHIFT 11 125 126 /* 127 * This is the format of the contents of the deDate field in the direntry 128 * structure. 129 */ 130 #define DD_DAY_MASK 0x1F /* day of month */ 131 #define DD_DAY_SHIFT 0 132 #define DD_MONTH_MASK 0x1E0 /* month */ 133 #define DD_MONTH_SHIFT 5 134 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 135 #define DD_YEAR_SHIFT 9 136 137 #ifdef _KERNEL 138 struct mbnambuf { 139 size_t nb_len; 140 int nb_last_id; 141 char nb_buf[WIN_MAXLEN + 1]; 142 }; 143 144 struct dirent; 145 struct msdosfsmount; 146 147 char *mbnambuf_flush(struct mbnambuf *nbp, struct dirent *dp); 148 void mbnambuf_init(struct mbnambuf *nbp); 149 int mbnambuf_write(struct mbnambuf *nbp, char *name, int id); 150 int dos2unixfn(u_char dn[11], u_char *un, int lower, 151 struct msdosfsmount *pmp); 152 int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen, 153 struct msdosfsmount *pmp); 154 int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt, 155 int chksum, struct msdosfsmount *pmp); 156 int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen, 157 int chksum, struct msdosfsmount *pmp); 158 int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum, 159 struct msdosfsmount *pmp); 160 uint8_t winChksum(uint8_t *name); 161 int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp); 162 size_t winLenFixup(const u_char *un, size_t unlen); 163 #endif /* _KERNEL */ 164 #endif /* !_FS_MSDOSFS_DIRENTRY_H_ */ 165