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 */ 58struct 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 */ 88struct 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 number of winentries for a filename. 105 */ 106#define WIN_MAXSUBENTRIES 20 107 108/* 109 * Maximum filename length in Win95 110 * Note: Must be < sizeof(dirent.d_name) 111 */ 112#define WIN_MAXLEN 255 113 114/* 115 * This is the format of the contents of the deTime field in the direntry 116 * structure. 117 * We don't use bitfields because we don't know how compilers for 118 * arbitrary machines will lay them out. 119 */ 120#define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 121#define DT_2SECONDS_SHIFT 0 122#define DT_MINUTES_MASK 0x7E0 /* minutes */ 123#define DT_MINUTES_SHIFT 5 124#define DT_HOURS_MASK 0xF800 /* hours */ 125#define DT_HOURS_SHIFT 11 126 127/* 128 * This is the format of the contents of the deDate field in the direntry 129 * structure. 130 */ 131#define DD_DAY_MASK 0x1F /* day of month */ 132#define DD_DAY_SHIFT 0 133#define DD_MONTH_MASK 0x1E0 /* month */ 134#define DD_MONTH_SHIFT 5 135#define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 136#define DD_YEAR_SHIFT 9 137 138#ifdef _KERNEL 139struct mbnambuf { 140 size_t nb_len; 141 int nb_last_id; 142 char nb_buf[WIN_MAXLEN + 1]; 143}; 144 145struct dirent; 146struct msdosfsmount; 147 148char *mbnambuf_flush(struct mbnambuf *nbp, struct dirent *dp); 149void mbnambuf_init(struct mbnambuf *nbp); 150int mbnambuf_write(struct mbnambuf *nbp, char *name, int id); 151int dos2unixfn(u_char dn[11], u_char *un, int lower, 152 struct msdosfsmount *pmp); 153int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen, 154 struct msdosfsmount *pmp); 155int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt, 156 int chksum, struct msdosfsmount *pmp); 157int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen, 158 int chksum, struct msdosfsmount *pmp); 159int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum, 160 struct msdosfsmount *pmp); 161uint8_t winChksum(uint8_t *name); 162int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp); 163size_t winLenFixup(const u_char *un, size_t unlen); 164#endif /* _KERNEL */ 165#endif /* !_FS_MSDOSFS_DIRENTRY_H_ */ 166