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<h1>ubixfs.h</h1><div class="fragment"><pre>00001 <span class="comment">/**************************************************************************************</span>
00002 <span class="comment"> Copyright (c) 2002 The UbixOS Project</span>
00003 <span class="comment"> All rights reserved.</span>
00004 <span class="comment"></span>
00005 <span class="comment">Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:</span>
00006 <span class="comment"></span>
00007 <span class="comment">Redistributions of source code must retain the above copyright notice, this list of conditions, the following disclaimer and the list of authors.</span>
00008 <span class="comment">Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of authors</span>
00009 <span class="comment">in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
00010 <span class="comment">contributors may be used to endorse or promote products derived from this software without specific prior written permission.</span>
00011 <span class="comment"></span>
00012 <span class="comment">THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span>
00013 <span class="comment">WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
00014 <span class="comment">PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span>
00015 <span class="comment">INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE</span>
00016 <span class="comment">GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY</span>
00017 <span class="comment">OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY</span>
00018 <span class="comment">OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
00019 <span class="comment"></span>
00020 <span class="comment"> $Id$</span>
00021 <span class="comment"></span>
00022 <span class="comment">**************************************************************************************/</span>
00023
00024 <span class="preprocessor">#ifndef _UBIXFS_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#define _UBIXFS_H</span>
00026 <span class="preprocessor"></span>
00027 <span class="preprocessor">#include <ubixos/types.h></span>
00028 <span class="preprocessor">#include <sys/device.h></span>
00029 <span class="preprocessor">#include <vfs/file.h></span>
00030
00031 <span class="preprocessor">#define UBIXDISKMAGIC ((uInt32)0x45) </span><span class="comment">/* The disk magic number */</span>
00032 <span class="preprocessor">#define MAXPARTITIONS 4</span>
00033 <span class="preprocessor"></span><span class="preprocessor">#define blockSize 8</span>
00034 <span class="preprocessor"></span><span class="preprocessor">#define blockByteSize blockSize*512</span>
00035 <span class="preprocessor"></span>
00036 <span class="preprocessor">#define EOBC -1</span>
00037 <span class="preprocessor"></span>
00038
00039 <span class="preprocessor">#define typeFile 1</span>
00040 <span class="preprocessor"></span><span class="preprocessor">#define typeContainer 2</span>
00041 <span class="preprocessor"></span><span class="preprocessor">#define typeDirectory 4</span>
00042 <span class="preprocessor"></span><span class="preprocessor">#define typeDeleted 8</span>
00043 <span class="preprocessor"></span>
00044 <span class="comment">//Partition Information</span>
00045 <span class="keyword">struct </span>ubixDiskLabel {
00046 uInt32 magicNum;
00047 uInt32 magicNum2;
00048 uInt16 driveType;
00049 uInt16 numPartitions;
00050 <span class="keyword">struct </span>drivePartitions { <span class="comment">//the partition table</span>
00051 uInt32 pSize; <span class="comment">//number of sectors in partition</span>
00052 uInt32 pOffset; <span class="comment">//starting sector</span>
00053 uInt32 pFsSize; <span class="comment">//filesystem basic fragment size</span>
00054 uInt32 pBatSize; <span class="comment">//BAT size</span>
00055 uInt8 pFsType; <span class="comment">//filesystem type, see below</span>
00056 uInt8 pFrag; <span class="comment">//filesystem fragments per block</span>
00057 } partitions[MAXPARTITIONS];
00058 };
00059
00060 <span class="keyword">struct </span>partitionInformation {
00061 uInt32 size; <span class="comment">//Size In Sectors</span>
00062 uInt32 startSector; <span class="comment">//Base Sector Of Partition</span>
00063 uInt32 blockAllocationTable; <span class="comment">//Base Sector Of BAT</span>
00064 uInt32 rootDirectory; <span class="comment">//Base Sector Of Root Directory</span>
00065 };
00066
00067 <span class="comment">//Block Allocation Table Entry</span>
00068 <span class="keyword">struct </span>blockAllocationTableEntry {
00069 <span class="keywordtype">long</span> attributes; <span class="comment">//Block Attributes</span>
00070 <span class="keywordtype">long</span> realSector; <span class="comment">//Real Sector </span>
00071 <span class="keywordtype">long</span> nextBlock; <span class="comment">//Sector Of Next Block</span>
00072 <span class="keywordtype">long</span> reserved; <span class="comment">//Reserved</span>
00073 };
00074
00075 <span class="comment">//UbixFS Directory Entry</span>
00076 <span class="keyword">struct </span>directoryEntry {
00077 uInt32 startCluster; <span class="comment">//Starting Cluster Of File</span>
00078 uInt32 size; <span class="comment">//Size Of File</span>
00079 uInt32 creationDate; <span class="comment">//Date Created</span>
00080 uInt32 lastModified; <span class="comment">//Date Last Modified</span>
00081 uInt32 uid; <span class="comment">//UID Of Owner</span>
00082 uInt32 gid; <span class="comment">//GID Of Owner</span>
00083 uShort attributes; <span class="comment">//Files Attributes</span>
00084 uShort permissions; <span class="comment">//Files Permissions</span>
00085 <span class="keywordtype">char</span> fileName[256]; <span class="comment">//File Name</span>
00086 };
00087
00088 <span class="keyword">struct </span>bootSect {
00089 uChar jmp[4];
00090 uChar id[6];
00091 uShort version;
00092 uShort tmp;
00093 uShort fsStart;
00094 uShort tmp2;
00095 uInt32 krnl_start;
00096 uInt BytesPerSector;
00097 uInt SectersPerTrack;
00098 uInt TotalHeads;
00099 uInt32 TotalSectors;
00100 uChar code[479];
00101 };
00102
00103 <span class="keyword">struct </span>ubixFsInfo {
00104 <span class="keyword">struct </span>blockAllocationTableEntry *blockAllocationTable;
00105 uInt32 batEntries;
00106 };
00107
00108 <span class="keywordtype">int</span> readFile(<span class="keywordtype">char</span> *file);
00109 <span class="keywordtype">int</span> writeFileByte(<span class="keywordtype">int</span> ch,fileDescriptor *fd,<span class="keywordtype">long</span> offset);
00110 <span class="keywordtype">int</span> openFileUbixFS(<span class="keywordtype">char</span> *file,fileDescriptor *fd);
00111 <span class="keywordtype">int</span> mkDirUbixFS(<span class="keywordtype">char</span> *dir,fileDescriptor *fd);
00112 <span class="keywordtype">int</span> getFreeBlocks(<span class="keywordtype">int</span> count,fileDescriptor *fd);
00113 <span class="comment">//extern struct ubixDiskLabel *diskLabel;</span>
00114
00115 <span class="comment">//Good Functions</span>
00116 <span class="keywordtype">void</span> initUbixFS(<span class="keyword">struct</span> mountPoints *mp);
00117 <span class="keywordtype">int</span> enableUbixFS();
00118 <span class="keywordtype">int</span> readUbixFS(fileDescriptor *fd,<span class="keywordtype">char</span> *data,<span class="keywordtype">long</span> offset,<span class="keywordtype">long</span> size);
00119 <span class="keywordtype">int</span> writeUbixFS(fileDescriptor *fd,<span class="keywordtype">char</span> *data,<span class="keywordtype">long</span> offset,<span class="keywordtype">long</span> size);
00120 <span class="keywordtype">void</span> syncBat(<span class="keyword">struct</span> mountPoints *mp);
00121 <span class="keywordtype">int</span> freeBlocks(<span class="keywordtype">int</span> block,fileDescriptor *fd);
00122 <span class="keywordtype">int</span> addDirEntry(<span class="keyword">struct</span> directoryEntry *dir,fileDescriptor *fd);
00123 <span class="keywordtype">void</span> ubixFSUnlink(<span class="keywordtype">char</span> *path,<span class="keyword">struct</span> mountPoints *mp);
00124
00125 <span class="preprocessor">#endif</span>
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