Symaptic: os/kernelhwsrv/kerneltest/f32test/fileutils/src/f32_test

     1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // @file

    15 // various FAT utilities

    16 //

    17 //

    19 #include "f32_test_utils.h"

    20 using namespace F32_Test_Utils;

    22 #include "filesystem_fat.h"

    24 //-------------------------------------------------------------------------------------------------------------------

    26 //-- define this macro if it is necessarily to exclude all stuff that uses RFs, consoles etc.

    27 //-- may be useful if this code is used for file server extensions. mmp file is a good place to define this macro.

    28 #ifndef FAT_UTILS_LEAN_AND_MEAN

    30 #include <e32cons.h>

    31 #include <e32math.h>

    33 //-- Note that the writable static data are not allowed in DLLs i.e. plugins or somethig else.

    34 //-- Thus it needs to be thrown away by preprocessing in such a case.

    36 static CConsoleBase* pConsole = NULL;   //-- pointer to the text console for printing out data

    37 static TBool  bPrintOutEnabled = ETrue; //-- global flag, if EFalse, all printing out is disabled

    39 /**

    40     Set the console where the ouput will go.

    41     @param  apConsole pointer to the console. if NULL, the print out will be debug port only.

    42 */

    43 void F32_Test_Utils::SetConsole(CConsoleBase* apConsole)

    44 {

    45     pConsole = apConsole;

    46 }

    48 /**

    49     Enable or disable printing out. See DoPrintf()

    50     @param  bEnable If ETrue, print out is enabled

    51     @return previous value of the global bPrintOutEnabled flag

    52 */

    53 TBool F32_Test_Utils::EnablePrintOutput(TBool bEnable)

    54 {

    55     TBool bPrevVal = bPrintOutEnabled;

    56     bPrintOutEnabled = bEnable;

    58     return bPrevVal;

    59 }

    61 /**

    62     Print out the drive information.

    64     @param  aFs             reference to the FS session

    65     @param  aDrive          drive number

    66     @return system-wide error codes.

    67 */

    68 TInt F32_Test_Utils::PrintDrvInfo(RFs &aFs, TInt aDrive)

    69 {

    70     TInt        nRes;

    71     TDriveInfo  driveInfo;

    72     TVolumeInfo volInfo;

    73     TBuf<256>   Buf;

    75     //-- get drive info

    76     nRes = aFs.Drive(driveInfo, aDrive);

    77     if(nRes != KErrNone)

    78         return nRes;

    80     nRes = aFs.Volume(volInfo, aDrive);

    81     if(nRes != KErrNone)

    82         return nRes;

    84     DoPrintf(_L("Drive %c: #%d\n"), 'A'+aDrive, aDrive);

    86     //-- print the FS name

    87     nRes = aFs.FileSystemName(Buf, aDrive);

    88     if(nRes != KErrNone)

    89         return nRes;

    91     //-- to find out FS sub type

    92     TFSName fsName;

    93     nRes = aFs.FileSystemSubType(aDrive, fsName);

    94     if(nRes == KErrNone && Buf.CompareF(fsName) !=KErrNone)

    95     {

    96         Buf.AppendFormat(_L(" (%S)"), &fsName);

    97     }

   100    DoPrintf(_L("FS name: %S\n"), &Buf);

   102    //-- print drive and media attributes

   103    DoPrintf(_L("MediaType: 0x%x\n"), driveInfo.iType);

   104    DoPrintf(_L("DriveAtt:0x%x\n"),driveInfo.iDriveAtt);

   105    DoPrintf(_L("MediaAtt:0x%x\n"),driveInfo.iMediaAtt);

   107    //-- volume information

   108    DoPrintf(_L("VolId:0x%x\n"),volInfo.iUniqueID);

   109    DoPrintf(_L("VolSz:%ld (%ldK)\n"),volInfo.iSize, volInfo.iSize/1024);

   110    DoPrintf(_L("Free:%ld (%ldK)\n"),volInfo.iFree, volInfo.iFree/1024);

   112    return KErrNone;

   113 }

   115 //-------------------------------------------------------------------------------------------------------------------

   118 /**

   119     Fill a media region with a given byte pattern

   121     @param  aFs             reference to the FS session

   122     @param  aDrive          drive number

   123     @param  aMediaStartPos  media region start position

   124     @param  aMediaEndPos    media region end position

   125     @param  aBytePattern    byte to fill the media region with

   127     @return system-wide error codes.

   128 */

   129 TInt F32_Test_Utils::FillMedia(RFs &aFs, TInt aDrive, TInt64 aMediaStartPos, TInt64 aMediaEndPos, TUint8 aBytePattern/*=0*/)

   130 {

   131     DoPrintf(_L("~ F32_Test_Utils::FillMedia() drv:%d, from:%u to:%u\n"),aDrive, (TUint32)aMediaStartPos, (TUint32)aMediaEndPos);

   133     ASSERT(aMediaStartPos<=aMediaEndPos && aMediaStartPos >=0  && aMediaEndPos >=0);

   135     TInt  nRes = KErrNone;

   136     RBuf8 buf;

   137     const TUint32 KBufSz=65536; //-- zero-buffer size, bytes

   139     //-- create a buffer, filled with given pattern

   140     nRes = buf.CreateMax(KBufSz);

   141     ASSERT(nRes == KErrNone);

   142     buf.Fill(aBytePattern);

   144     TUint32 rem = (TUint32)(aMediaEndPos - aMediaStartPos);

   145     while(rem)

   146     {

   147         const TUint32 bytesToWrite=Min(rem, KBufSz);

   148         TPtrC8 ptrData(buf.Ptr(), bytesToWrite);

   150         nRes = MediaRawWrite(aFs, aDrive, aMediaStartPos, ptrData);

   151         if(nRes != KErrNone && nRes != KErrDiskFull)

   152             break;

   154         aMediaStartPos+=bytesToWrite;

   155         rem-=bytesToWrite;

   156     }

   158     buf.Close();

   160     return nRes;

   161 }

   164 //-------------------------------------------------------------------------------------------------------------------

   166 /**

   167     Raw read from the media.

   169     @param  aFs         reference to the FS session

   170     @param  aDrive      drive number

   171     @param  aMediaPos   media position

   172     @param  aLen        how many bytes to read

   173     @param  aData       descriptor for the data

   175     @return system-wide error code.

   176 */

   177 TInt F32_Test_Utils::MediaRawRead(RFs &aFs, TInt aDrive, TInt64 aMediaPos, TUint32 aLen, TDes8& aData)

   178 {

   179     TInt nRes=KErrNone;

   180     TRAP(nRes, DoMediaRawReadL(aFs, aDrive, aMediaPos, aLen, aData));

   181     return nRes;

   182 }

   184 //-------------------------------------------------------------------------------------------------------------------

   186 /**

   187     Raw write to the media.

   189     @param  aFs         reference to the FS session

   190     @param  aDrive      drive number

   191     @param  aMediaPos   media position

   192     @param  aData       descriptor with the data to write

   194     @return system-wide error code.

   195 */

   196 TInt F32_Test_Utils::MediaRawWrite(RFs &aFs, TInt aDrive, TInt64 aMediaPos, const TDesC8& aData)

   197 {

   198     TInt nRes=KErrNone;

   199     TRAP(nRes, DoMediaRawWriteL(aFs, aDrive, aMediaPos, aData));

   200     return nRes;

   201 }

   204 //-------------------------------------------------------------------------------------------------------------------

   205 void F32_Test_Utils::DoMediaRawReadL(RFs &aFs, TInt aDrive, TInt64 aMediaPos, TUint32 aLen, TDes8& aData)

   206 {

   207     ASSERT(aMediaPos>=0);

   208     ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   210     if((TUint32)aData.MaxSize() < aLen)

   211         User::Leave(KErrArgument);

   213     if(aLen == 0)

   214         return;

   216     aData.SetLength(aLen);

   218     RRawDisk  rawDisk;

   219     CleanupClosePushL(rawDisk);

   221     User::LeaveIfError(rawDisk.Open(aFs, aDrive));

   222     User::LeaveIfError(rawDisk.Read(aMediaPos, aData));

   224     CleanupStack::PopAndDestroy(&rawDisk);

   225 }

   227 //-------------------------------------------------------------------------------------------------------------------

   228 void F32_Test_Utils::DoMediaRawWriteL(RFs &aFs, TInt aDrive, TInt64 aMediaPos, const TDesC8& aData)

   229 {

   230     ASSERT(aMediaPos>=0);

   231     ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   233     if(aData.Size() == 0)

   234         return;

   236     RRawDisk  rawDisk;

   237     CleanupClosePushL(rawDisk);

   239     User::LeaveIfError(rawDisk.Open(aFs, aDrive));

   240     User::LeaveIfError(rawDisk.Write(aMediaPos, (TDesC8&)aData));

   242     CleanupStack::PopAndDestroy(&rawDisk);

   243 }

   245 //-------------------------------------------------------------------------------------------------------------------

   247 _LIT(KFsName_LFFS,  "lffs");

   248 _LIT(KFsName_Win32, "Win32");

   249 _LIT(KFsName_ExFAT, "ExFat");

   250 _LIT(KFsName_AutoMonuter, "automounter");

   252 /**  @return ETrue if "Automounter" FS is mounted on this drive */

   253 TBool F32_Test_Utils::Is_Automounter(RFs &aFs, TInt aDrive)

   254 {

   255 	ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   256     TFSName f;

   257 	TInt r = aFs.FileSystemName(f, aDrive);

   258     __ASSERT_ALWAYS((r==KErrNone) && (f.Length()>0), User::Invariant());

   260     return (f.CompareF(KFsName_AutoMonuter) == 0 );

   262 }

   264 /** @return ETrue if "lffs" FS is mounted on this drive */

   265 TBool F32_Test_Utils::Is_Lffs(RFs &aFs, TInt aDrive)

   266 {

   267 	ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   268     TFSName f;

   269 	TInt r = aFs.FileSystemName(f, aDrive);

   270     __ASSERT_ALWAYS((r==KErrNone) && (f.Length()>0), User::Invariant());

   272     return (f.CompareF(KFsName_LFFS) == 0 );

   274 }

   276 /** @return ETrue if "Win32" FS is mounted on this drive (i.e this is emulator's drive c:) */

   277 TBool F32_Test_Utils::Is_Win32(RFs &aFs, TInt aDrive)

   278 {

   279 	ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   280     TFSName f;

   281 	TInt r = aFs.FileSystemName(f, aDrive);

   282     __ASSERT_ALWAYS((r==KErrNone) && (f.Length()>0), User::Invariant());

   284     return (f.CompareF(KFsName_Win32) == 0 );

   285 }

   287 /** @return ETrue if the filesystem if FAT (fat12/16/32) */

   288 TBool F32_Test_Utils::Is_Fat(RFs &aFs, TInt aDrive)

   289 {

   290 	ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   291     TFSName fsName;

   292 	TInt nRes = aFs.FileSystemName(fsName, aDrive);

   293     __ASSERT_ALWAYS((nRes==KErrNone) && (fsName.Length()>0), User::Invariant());

   295     if(fsName.CompareF(KFileSystemName_FAT) == 0)

   296         return ETrue; //-- "FAT" FS is explicitly mounted on this drive

   298     //-- try analyse file system subtype for the case of automounter FS

   299     nRes = aFs.FileSystemSubType(aDrive,fsName);

   300     if(nRes !=KErrNone)

   301         return EFalse;

   303     return (fsName.CompareF(KFSSubType_FAT16) == 0 || fsName.CompareF(KFSSubType_FAT32) == 0 || fsName.CompareF(KFSSubType_FAT12) == 0);

   304 }

   306 /** returns ETrue if "exFAT" FS is mounted on this drive */

   307 TBool F32_Test_Utils::Is_ExFat(RFs &aFs, TInt aDrive)

   308 {

   309 	ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   310     TFSName fsName;

   311 	TInt nRes = aFs.FileSystemName(fsName, aDrive);

   312     __ASSERT_ALWAYS((nRes==KErrNone) && (fsName.Length()>0), User::Invariant());

   314     if(fsName.CompareF(KFsName_ExFAT) == 0 )

   315         return ETrue; //-- "exFAT" FS is explicitly mounted on this drive

   317     //-- try analyse file system subtype for the case of automounter FS

   318     nRes = aFs.FileSystemSubType(aDrive,fsName);

   319     if(nRes !=KErrNone)

   320         return EFalse;

   322     return (fsName.CompareF(KFsName_ExFAT) == 0);

   323 }

   325 /** @return ETrue if the filesystem if FAT32 */

   326 TBool F32_Test_Utils::Is_Fat32(RFs &aFs, TInt aDrive)

   327 {

   328     if(!Is_Fat(aFs, aDrive))

   329         return EFalse;

   331     TFSName fsName;

   332     TInt nRes = aFs.FileSystemSubType(aDrive,fsName);

   334     if(nRes !=KErrNone)

   335         return EFalse;

   337     return (fsName.CompareF(KFSSubType_FAT32) == 0);

   339 }

   341 /** @return ETrue if the filesystem if FAT16 */

   342 TBool F32_Test_Utils::Is_Fat16(RFs &aFs, TInt aDrive)

   343 {

   344     if(!Is_Fat(aFs, aDrive))

   345         return EFalse;

   347     TFSName fsName;

   348     TInt nRes = aFs.FileSystemSubType(aDrive,fsName);

   350     if(nRes !=KErrNone)

   351         return EFalse;

   353     return (fsName.CompareF(KFSSubType_FAT16) == 0);

   355 }

   357 /** @return ETrue if the filesystem if FAT12 */

   358 TBool F32_Test_Utils::Is_Fat12(RFs &aFs, TInt aDrive)

   359 {

   360     if(!Is_Fat(aFs, aDrive))

   361         return EFalse;

   363     TFSName fsName;

   364     TInt nRes = aFs.FileSystemSubType(aDrive,fsName);

   366     if(nRes !=KErrNone)

   367         return EFalse;

   369     return (fsName.CompareF(KFSSubType_FAT12) == 0);

   371 }

   374 static void DoCreateCheckableFileL(RFile64& aFile, TUint64 aSize)

   375 {

   377     ASSERT(aSize >= TMD5::HashSize);

   379     //-- 1. set file size

   380     User::LeaveIfError(aFile.SetSize((TInt)aSize));

   382     //-- 2. leave place for the 16-bytes MD5 hash in the file beginning

   383     TInt64 filePos = TMD5::HashSize;

   384     User::LeaveIfError(aFile.Seek(ESeekStart,filePos));

   385     aSize-=TMD5::HashSize;

   387     TMD5 md5Hash;

   389     //-- 3. fill the file with random bytes

   390     const TInt KBufSize=65536; //-- buffer size for writing data

   391     TInt64 rndSeed = aSize % 43283;

   392     if(!rndSeed)

   393         rndSeed = 33521;

   395     RBuf8 buf;

   396     buf.CreateMaxL(KBufSize);

   398     TUint64 prevSz = aSize;

   399     while(aSize)

   400     {

   401         //-- initialize buffer with random rubbish

   402         for(TInt i=0; i<KBufSize; ++i)

   403         {

   404             buf[i] = (TUint8)Math::Rand(rndSeed);

   405         }

   407         const TUint32 nBytes = (TUint32)Min((TUint64)KBufSize, aSize);

   408         TPtrC8 ptrData(buf.Ptr(), nBytes);

   409         User::LeaveIfError(aFile.Write(ptrData)); //-- write data to the file

   410         md5Hash.Update(ptrData); //-- update MD5 hash

   412         aSize-=nBytes;

   414         if((prevSz - aSize) >= K1MegaByte)

   415         {

   416             prevSz = aSize;

   417             DoPrintf(_L("."));

   418         }

   419     }

   422     buf.Close();

   423     DoPrintf(_L("\n"));

   425     //-- 4. write MD5 hash to the beginning of the file

   426     filePos = 0;

   427     User::LeaveIfError(aFile.Seek(ESeekStart,filePos));

   428     User::LeaveIfError(aFile.Write(md5Hash.Final()));

   430 }

   433 static void DoVerifyCheckableFileL(RFile64& aFile)

   434 {

   435     TInt64 fileSize;

   436     User::LeaveIfError(aFile.Size(fileSize));

   438     if(fileSize < TMD5::HashSize)

   439        User::Leave(KErrCorrupt); //-- MD5 hash is 16 bytes, it's the minimal file size

   441     //-- 1. read MD5 header from the file

   442     TBuf8<TMD5::HashSize> md5Header(TMD5::HashSize);

   443     User::LeaveIfError(aFile.Read(md5Header));

   444     fileSize -= TMD5::HashSize;

   446     //-- 2. read the rest of the data and calculate the checksum

   447     TMD5 md5Hash;

   448     RBuf8 buf;

   450     const TInt KBufSize=65536; //-- buffer size for writing data

   451     buf.CreateMaxL(KBufSize);

   453     TUint64 prevSz = fileSize;

   454     while(fileSize)

   455     {

   456         User::LeaveIfError(aFile.Read(buf)); //-- read data from the file

   457 		if (buf.Length() == 0)

   458 			User::Leave(KErrEof);

   459         md5Hash.Update(buf); //-- update MD5 hash

   461         fileSize-=buf.Length();

   463         if((prevSz - fileSize) >= K1MegaByte)

   464         {

   465             prevSz = fileSize;

   466             DoPrintf(_L("."));

   467         }

   468     }

   470     buf.Close();

   471     DoPrintf(_L("\n"));

   473     if(md5Hash.Final() != md5Header)

   474         User::Leave(KErrCorrupt); //-- the file is corrupt

   475 }

   477 //-------------------------------------------------------------------------------------------------------------------

   479 /**

   480     Creates a file filled with random data. The file has a 16-byte MD5 header at the start, so it is possible to

   481     verify the data validity later. Thus the minimal file size is 16 bytes. The file with the iven name may already

   482     exist; in this case it will be replaced.

   484     @param  aFs         reference to the FS session

   485     @param  aFileName   name of the file to be created / replaced

   486     @param  aSize       size of the file; 16 bytes min.

   488     @return Standard error code

   489 */

   490 TInt  F32_Test_Utils::CreateCheckableStuffedFile(RFs& aFs, const TDesC& aFileName, TUint64 aSize)

   491 {

   493     DoPrintf(_L("~ F32_Test_Utils::CreateCheckableStuffedFile() file:%S, Size:%LU\n"), &aFileName, aSize);

   495     if(aSize < TMD5::HashSize)

   496         return KErrArgument; //-- MD5 hash is 16 bytes, it's the minimal file size

   498     RFile64 file;

   500     //-- 1. create a file

   501     TInt nRes = file.Replace(aFs, aFileName, EFileWrite);

   502     if(nRes != KErrNone)

   503         return nRes;

   505     TRAP(nRes, DoCreateCheckableFileL(file, aSize));

   507     file.Close();

   508     return nRes;

   509 }

   512 /**

   513     Verify previously created file that has MD5 header at the beginning. See  CreateCheckableStuffedFile(...)

   515     @param  aFs         reference to the FS session

   516     @param  aFileName   name of the file to be verified

   518     @return Standard error code. KErrNone if the file contents matches the MD5 header.

   519 */

   520 TInt  F32_Test_Utils::VerifyCheckableFile(RFs& aFs, const TDesC& aFileName)

   521 {

   522     DoPrintf(_L("~ F32_Test_Utils::VerifyCheckableFile() file:%S\n"), &aFileName);

   524     RFile64 file;

   526     //-- 1. create a file

   527     TInt nRes = file.Open(aFs, aFileName, EFileRead);

   528     if(nRes != KErrNone)

   529         return nRes;

   531     TRAP(nRes, DoVerifyCheckableFileL(file));

   533     file.Close();

   534     return nRes;

   536 }

   539 /**

   540     Create an empty file (not filled with anything). The size of the file is set by using RFile::SetSize().

   541     For FAT this will result in allocating a cluster chain in FAT fable, for the file systems that support sparse files (like LFFS)

   542     this might not work as expected.

   544     @param  aFs         reference to the FS session

   545     @param  aFileName   name of the file to be created / replaced

   546     @param  aSize       size of the file

   548     @return Standard error code

   549 */

   550 TInt  F32_Test_Utils::CreateEmptyFile(RFs& aFs, const TDesC& aFileName, TUint64 aSize)

   551 {

   552     DoPrintf(_L("~ F32_Test_Utils::CreateEmptyFile() file:%S, sz:%LU\n"), &aFileName, aSize);

   554     RFile64 file;

   556     //-- 1. create a file

   557     TInt nRes = file.Replace(aFs, aFileName, EFileWrite);

   558     if(nRes != KErrNone)

   559         return nRes;

   561     //-- 2. set file size

   562     nRes = file.SetSize(aSize);

   564     file.Close();

   566     return nRes;

   567 }

   569 //-------------------------------------------------------------------------------------------------------------------

   571 /**

   572     Dismount and mount the filesystem again, optionally taking time when the mount starts.

   573     The FS can have extensions added into it; this function will handle only the primary extension (if it is present) and

   574     will mont the FS with it. Non-primary extensions are not supported yet.

   577     @param  aFs         reference to the FS session

   578     @param  aDrive      drive number

   579     @param  apTimeMountStart pointer to the TTime object, that can be called TTime::UniversalTime() on mount start (this can be

   580                              used for measuring time taken to mount the FS).

   581                              if NULL, no action will be taken.

   583     @return error code from the RFs::MountFileSystem()

   585 */

   586 TInt  F32_Test_Utils::RemountFS(RFs& aFs, TInt aDrive, TTime* apTimeMountStart/*=NULL*/)

   587 {

   588     TInt nRes;

   589     DoPrintf(_L("~ F32_Test_Utils::RemountingFS at drive:%d\n"), aDrive);

   591     TFSDescriptor fsDescriptor;

   593     //-- 1. get current FS information

   594     nRes = GetFileSystemDescriptor(aFs, aDrive, fsDescriptor);

   595     if(nRes != KErrNone)

   596         return nRes;

   598     //-- 2. dismount the file system

   599     if(fsDescriptor.iPExtName.Length() > 0)

   600     {

   601         DoPrintf(_L("~ Dismounting FS:%S with ext:%S\n"), &fsDescriptor.iFsName, &fsDescriptor.iPExtName);

   602     }

   603     else

   604     {

   605         DoPrintf(_L("~ Dismounting FS:%S\n"), &fsDescriptor.iFsName);

   606     }

   608     nRes = aFs.DismountFileSystem(fsDescriptor.iFsName, aDrive);

   609     if(nRes != KErrNone)

   610     {

   611         ASSERT(0);

   612         return nRes;

   613     }

   615     //-- 3. mount it again

   616     if(apTimeMountStart)

   617         apTimeMountStart->UniversalTime(); //-- take Mount start time

   620     nRes = MountFileSystem(aFs, aDrive, fsDescriptor);

   621     return nRes;

   622 }

   624 //-------------------------------------------------------------------------------------------------------------------

   626 TFSDescriptor::TFSDescriptor()

   627 {

   628     Init();

   629 }

   631 void TFSDescriptor::Init()

   632 {

   633     iFsName.SetLength(0);

   634     iPExtName.SetLength(0);

   635     iDriveSynch = EFalse;

   636 }

   638 TBool TFSDescriptor::operator==(const TFSDescriptor& aRhs) const

   639 {

   640     ASSERT(this != &aRhs);

   641     return (iFsName.CompareF(aRhs.iFsName) == 0 && iPExtName.CompareF(aRhs.iPExtName) == 0 && iDriveSynch == aRhs.iDriveSynch);

   642 }

   645 //-------------------------------------------------------------------------------------------------------------------

   646 /**

   647     Gets the information about file system mounted on a drive. This information can be later used for mounting this FS back if it is going to be dismounted

   649     @param  aFs         reference to the FS session

   650     @param  aDrive      drive number

   651     @param  aFsDesc     file system descriptor

   653     @return standard error code

   654 */

   655 TInt F32_Test_Utils::GetFileSystemDescriptor(RFs &aFs, TInt aDrive, TFSDescriptor& aFsDesc)

   656 {

   657     TInt nRes;

   659     //-- 1. get file system name

   660     nRes = aFs.FileSystemName(aFsDesc.iFsName, aDrive);

   661     if(nRes != KErrNone)

   662     {

   663         ASSERT(0);

   664         return nRes;

   665     }

   667     //-- 2. find out if the drive sync/async

   668     TPckgBuf<TBool> drvSyncBuf;

   669     nRes = aFs.QueryVolumeInfoExt(aDrive, EIsDriveSync, drvSyncBuf);

   670     if(nRes != KErrNone)

   671     {//-- pretend that the drive is asynch. in the case of file system being corrupted. this is 99.9% true

   672        aFsDesc.iDriveSynch = EFalse;

   673     }

   674     else

   675     {

   676         aFsDesc.iDriveSynch = drvSyncBuf();

   677     }

   679     //-- 3. find out primary extension name if it is present; we will need to add it again when mounting the FS

   680     //-- other extensions (non-primary) are not supported yet

   681     nRes = aFs.ExtensionName(aFsDesc.iPExtName, aDrive, 0);

   682     if(nRes != KErrNone)

   683     {

   684         aFsDesc.iPExtName.SetLength(0);

   685     }

   687     //-- 3.1 check if the drive has non-primary extensions, fail in this case

   688     TBuf<40> extName;

   689     nRes = aFs.ExtensionName(extName, aDrive, 1);

   690     if(nRes == KErrNone)

   691     {

   692         DoPrintf(_L("~ F32_Test_Utils::GetFileSystemDescriptor: Non-primary extensions are not supported!\n"));

   693         return KErrNotSupported;

   694     }

   697     return KErrNone;

   698 }

   700 //-------------------------------------------------------------------------------------------------------------------

   701 /**

   702     Mount the file system by the information provided in the FS descriptor

   704     @param  aFs         reference to the FS session

   705     @param  aDrive      drive number

   706     @param  aFsDesc     file system descriptor containing all necessary information to mount the FS.

   708     @return standard error code

   709 */

   710 TInt F32_Test_Utils::MountFileSystem(RFs &aFs, TInt aDrive, const TFSDescriptor& aFsDesc)

   711 {

   712     DoPrintf(_L("~ F32_Test_Utils::MountFileSystem() drive:%d Name:%S\n"), aDrive, &aFsDesc.iFsName);

   714     TInt nRes;

   715     if(aFsDesc.iFsName.Length() <=0 )

   716     {

   717         ASSERT(0);

   718         return KErrArgument;

   719     }

   722     //-- mount File system

   723     const TBool bPrimaryExt = (aFsDesc.iPExtName.Length() > 0);

   725     if(bPrimaryExt)

   726     {//-- we need to mount FS with the primary extension

   727         nRes = aFs.AddExtension(aFsDesc.iPExtName);

   728         if(nRes != KErrNone && nRes != KErrAlreadyExists)

   729         {

   730             ASSERT(0);

   731             return nRes;

   732         }

   734         nRes = aFs.MountFileSystem(aFsDesc.iFsName, aFsDesc.iPExtName, aDrive, aFsDesc.iDriveSynch);

   735     }

   736     else

   737     {//-- the FS did not have primary extension

   738         nRes = aFs.MountFileSystem(aFsDesc.iFsName, aDrive, aFsDesc.iDriveSynch);

   739     }

   742     return nRes;

   743 }

   745 //-------------------------------------------------------------------------------------------------------------------

   746 /**

   747     Format volume, regardless the file system installed.

   749     @param  aFs             reference to the FS session

   750     @param  aDrive          drive number

   751     @param  aQuickFormat    if True, a quick format will be performed. otherwise - full

   752     @return system-wide error codes.

   753 */

   754 TInt F32_Test_Utils::FormatDrive(RFs &aFs, TInt aDrive, TBool aQuickFormat)

   755 {

   756     TPtrC fmtTypeName = (aQuickFormat ? _L("Quick") : _L("Full"));

   757     DoPrintf(_L("~ F32_Test_Utils::FormatDrive() drv:%d, type:%S\n"),aDrive, &fmtTypeName);

   759     ASSERT(aDrive >= EDriveA && aDrive <= EDriveZ);

   761     RFormat format;

   762     TUint   fmtMode=0;

   763     TInt    fmtCnt=0;

   764     TInt    prevCnt;

   765     TInt    nRes;

   767     if(aQuickFormat)

   768         fmtMode |= EQuickFormat;

   770     //if(aForceErase)

   771     //    fmtMode |= EForceErase;

   773     TBuf<10> drvName;

   774     drvName.Format(_L("%C:"),'A'+aDrive);

   776     nRes = format.Open(aFs, drvName, fmtMode, fmtCnt);

   777     if(nRes!=KErrNone)

   778         goto Fail;

   780     //-- do format steps

   781     prevCnt=fmtCnt;

   782     while(fmtCnt)

   783     {

   784         nRes = format.Next(fmtCnt);

   785         if(nRes!=KErrNone)

   786             goto Fail;

   788         if(fmtCnt != prevCnt)

   789         {

   790             DoPrintf(_L("."));

   791             prevCnt = fmtCnt;

   792         }

   793     }

   795     //-- formatting has finished

   796     DoPrintf(_L("\n"));

   797     format.Close();

   798     return KErrNone;

   800    Fail:

   801     format.Close();

   802     DoPrintf(_L("~ F32_Test_Utils::FormatFatDrive() failed! code:%d\n"), nRes);

   804     return nRes;

   805 }

   808 #endif //FAT_UTILS_LEAN_AND_MEAN

   811 //-------------------------------------------------------------------------------------------------------------------

   812 /**

   813     printing interface. Prints out to the console (if is set) and to the debug interface

   814     if pConsole is NULL will print to the debug port only.

   815 */

   816 void F32_Test_Utils::DoPrintf(TRefByValue<const TDesC> aFmt,...)

   817 {

   818 #ifndef FAT_UTILS_LEAN_AND_MEAN

   819     if(!bPrintOutEnabled)

   820         return; //-- disabled by global flag

   821 #endif //FAT_UTILS_LEAN_AND_MEAN

   823     VA_LIST list;

   824     VA_START(list, aFmt);

   826     TBuf<0x100> buf;

   827     buf.FormatList(aFmt, list); //-- ignore overflows

   829 #ifndef FAT_UTILS_LEAN_AND_MEAN

   830     if(pConsole)

   831     {

   832         pConsole->Write(buf);

   833     }

   834 #endif //FAT_UTILS_LEAN_AND_MEAN

   836     const TInt bufLen = buf.Length();

   837     if(bufLen >0 && buf[bufLen-1] == '\n')

   838     {

   839         buf.Insert(bufLen-1, _L("\r"));

   840     }

   842     RDebug::RawPrint(buf);

   843 }

   845 //-------------------------------------------------------------------------------------------------------------------

   847 TBool F32_Test_Utils::IsPowerOf2(TUint32 aVal)

   848     {

   849     if (aVal==0)

   850         return EFalse;

   852     return !(aVal & (aVal-1));

   853     }

   856 //-------------------------------------------------------------------------------------------------------------------

   857 TUint32 F32_Test_Utils::Log2(TUint32 aVal)

   858 {

   859     __ASSERT_COMPILE(sizeof(TUint32) == 4);

   860     ASSERT(aVal);

   862     TUint32 bitPos=31;

   864     if(!(aVal >> 16)) {bitPos-=16; aVal<<=16;}

   865     if(!(aVal >> 24)) {bitPos-=8;  aVal<<=8 ;}

   866     if(!(aVal >> 28)) {bitPos-=4;  aVal<<=4 ;}

   867     if(!(aVal >> 30)) {bitPos-=2;  aVal<<=2 ;}

   868     if(!(aVal >> 31)) {bitPos-=1;}

   870     return bitPos;

   871 }

   874 //-------------------------------------------------------------------------------------------------------------------

   876 //###################################################################################################################

   877 //#     TMD5 class implementation

   878 //###################################################################################################################

   881 #define T_MASK ((TUint32)~0)

   882 #define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)

   883 #define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)

   884 #define T3    0x242070db

   885 #define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)

   886 #define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)

   887 #define T6    0x4787c62a

   888 #define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)

   889 #define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)

   890 #define T9    0x698098d8

   891 #define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)

   892 #define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)

   893 #define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)

   894 #define T13    0x6b901122

   895 #define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)

   896 #define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)

   897 #define T16    0x49b40821

   898 #define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)

   899 #define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)

   900 #define T19    0x265e5a51

   901 #define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)

   902 #define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)

   903 #define T22    0x02441453

   904 #define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)

   905 #define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)

   906 #define T25    0x21e1cde6

   907 #define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)

   908 #define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)

   909 #define T28    0x455a14ed

   910 #define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)

   911 #define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)

   912 #define T31    0x676f02d9

   913 #define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)

   914 #define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)

   915 #define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)

   916 #define T35    0x6d9d6122

   917 #define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)

   918 #define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)

   919 #define T38    0x4bdecfa9

   920 #define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)

   921 #define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)

   922 #define T41    0x289b7ec6

   923 #define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)

   924 #define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)

   925 #define T44    0x04881d05

   926 #define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)

   927 #define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)

   928 #define T47    0x1fa27cf8

   929 #define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)

   930 #define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)

   931 #define T50    0x432aff97

   932 #define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)

   933 #define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)

   934 #define T53    0x655b59c3

   935 #define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)

   936 #define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)

   937 #define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)

   938 #define T57    0x6fa87e4f

   939 #define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)

   940 #define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)

   941 #define T60    0x4e0811a1

   942 #define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)

   943 #define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)

   944 #define T63    0x2ad7d2bb

   945 #define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)

   948 TMD5::TMD5()

   949 {

   950     Reset();

   951 }

   953 //-------------------------------------------------------------------------------------------------------------------

   955 void TMD5::Md5_process(const TUint8 *data /*[64]*/)

   956 {

   957     TUint32

   958     a = iState.abcd[0], b = iState.abcd[1],

   959     c = iState.abcd[2], d = iState.abcd[3];

   960     TUint32 t;

   961     TUint32 xbuf[16];

   962     const TUint32 *X;

   964     {

   965         static const TInt w = 1;

   966         if (*((const TUint8 *)&w))

   967         {

   968             if (!((data - (const TUint8 *)0) & 3)) {

   969             X = (const TUint32 *)data;

   970             } else {

   971             memcpy(xbuf, data, 64);

   972             X = xbuf;

   973             }

   974         }

   975         else

   976         {

   977             const TUint8 *xp = data;

   978             TInt i;

   980             X = xbuf;       /* (dynamic only) */

   981             for (i = 0; i < 16; ++i, xp += 4)

   982             xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);

   983         }

   984     }

   986 #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))

   988 #define F(x, y, z) (((x) & (y)) | (~(x) & (z)))

   989 #define SET(a, b, c, d, k, s, Ti)\

   990   t = a + F(b,c,d) + X[k] + Ti;\

   991   a = ROTATE_LEFT(t, s) + b

   992     SET(a, b, c, d,  0,  7,  T1);

   993     SET(d, a, b, c,  1, 12,  T2);

   994     SET(c, d, a, b,  2, 17,  T3);

   995     SET(b, c, d, a,  3, 22,  T4);

   996     SET(a, b, c, d,  4,  7,  T5);

   997     SET(d, a, b, c,  5, 12,  T6);

   998     SET(c, d, a, b,  6, 17,  T7);

   999     SET(b, c, d, a,  7, 22,  T8);

  1000     SET(a, b, c, d,  8,  7,  T9);

  1001     SET(d, a, b, c,  9, 12, T10);

  1002     SET(c, d, a, b, 10, 17, T11);

  1003     SET(b, c, d, a, 11, 22, T12);

  1004     SET(a, b, c, d, 12,  7, T13);

  1005     SET(d, a, b, c, 13, 12, T14);

  1006     SET(c, d, a, b, 14, 17, T15);

  1007     SET(b, c, d, a, 15, 22, T16);

  1008 #undef SET

  1010 #define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))

  1011 #define SET(a, b, c, d, k, s, Ti)\

  1012     t = a + G(b,c,d) + X[k] + Ti;\

  1013     a = ROTATE_LEFT(t, s) + b

  1014     SET(a, b, c, d,  1,  5, T17);

  1015     SET(d, a, b, c,  6,  9, T18);

  1016     SET(c, d, a, b, 11, 14, T19);

  1017     SET(b, c, d, a,  0, 20, T20);

  1018     SET(a, b, c, d,  5,  5, T21);

  1019     SET(d, a, b, c, 10,  9, T22);

  1020     SET(c, d, a, b, 15, 14, T23);

  1021     SET(b, c, d, a,  4, 20, T24);

  1022     SET(a, b, c, d,  9,  5, T25);

  1023     SET(d, a, b, c, 14,  9, T26);

  1024     SET(c, d, a, b,  3, 14, T27);

  1025     SET(b, c, d, a,  8, 20, T28);

  1026     SET(a, b, c, d, 13,  5, T29);

  1027     SET(d, a, b, c,  2,  9, T30);

  1028     SET(c, d, a, b,  7, 14, T31);

  1029     SET(b, c, d, a, 12, 20, T32);

  1030 #undef SET

  1032 #define H(x, y, z) ((x) ^ (y) ^ (z))

  1033 #define SET(a, b, c, d, k, s, Ti)\

  1034     t = a + H(b,c,d) + X[k] + Ti;\

  1035     a = ROTATE_LEFT(t, s) + b

  1036     SET(a, b, c, d,  5,  4, T33);

  1037     SET(d, a, b, c,  8, 11, T34);

  1038     SET(c, d, a, b, 11, 16, T35);

  1039     SET(b, c, d, a, 14, 23, T36);

  1040     SET(a, b, c, d,  1,  4, T37);

  1041     SET(d, a, b, c,  4, 11, T38);

  1042     SET(c, d, a, b,  7, 16, T39);

  1043     SET(b, c, d, a, 10, 23, T40);

  1044     SET(a, b, c, d, 13,  4, T41);

  1045     SET(d, a, b, c,  0, 11, T42);

  1046     SET(c, d, a, b,  3, 16, T43);

  1047     SET(b, c, d, a,  6, 23, T44);

  1048     SET(a, b, c, d,  9,  4, T45);

  1049     SET(d, a, b, c, 12, 11, T46);

  1050     SET(c, d, a, b, 15, 16, T47);

  1051     SET(b, c, d, a,  2, 23, T48);

  1052 #undef SET

  1054 #define I(x, y, z) ((y) ^ ((x) | ~(z)))

  1055 #define SET(a, b, c, d, k, s, Ti)\

  1056     t = a + I(b,c,d) + X[k] + Ti;\

  1057     a = ROTATE_LEFT(t, s) + b

  1058     SET(a, b, c, d,  0,  6, T49);

  1059     SET(d, a, b, c,  7, 10, T50);

  1060     SET(c, d, a, b, 14, 15, T51);

  1061     SET(b, c, d, a,  5, 21, T52);

  1062     SET(a, b, c, d, 12,  6, T53);

  1063     SET(d, a, b, c,  3, 10, T54);

  1064     SET(c, d, a, b, 10, 15, T55);

  1065     SET(b, c, d, a,  1, 21, T56);

  1066     SET(a, b, c, d,  8,  6, T57);

  1067     SET(d, a, b, c, 15, 10, T58);

  1068     SET(c, d, a, b,  6, 15, T59);

  1069     SET(b, c, d, a, 13, 21, T60);

  1070     SET(a, b, c, d,  4,  6, T61);

  1071     SET(d, a, b, c, 11, 10, T62);

  1072     SET(c, d, a, b,  2, 15, T63);

  1073     SET(b, c, d, a,  9, 21, T64);

  1074 #undef SET

  1076     iState.abcd[0] += a;

  1077     iState.abcd[1] += b;

  1078     iState.abcd[2] += c;

  1079     iState.abcd[3] += d;

  1081 }

  1083 //-------------------------------------------------------------------------------------------------------------------

  1084 void TMD5::Md5_append(const TUint8 *data, TInt nbytes)

  1085 {

  1086     const TUint8 *p = data;

  1088     TInt left = nbytes;

  1090     TInt offset = (iState.count[0] >> 3) & 63;

  1091     TUint32 nbits = (TUint32)(nbytes << 3);

  1093     if (nbytes <= 0)

  1094     return;

  1096     iState.count[1] += nbytes >> 29;

  1097     iState.count[0] += nbits;

  1098     if (iState.count[0] < nbits)

  1099     iState.count[1]++;

  1101     if (offset)

  1102     {

  1103     TInt copy = (offset + nbytes > 64 ? 64 - offset : nbytes);

  1105     memcpy(iState.buf + offset, p, copy);

  1106     if (offset + copy < 64)

  1107         return;

  1108     p += copy;

  1109     left -= copy;

  1110     Md5_process(iState.buf);

  1111     }

  1113     for (; left >= 64; p += 64, left -= 64)

  1114         Md5_process(p);

  1116     if (left)

  1117         memcpy(iState.buf, p, left);

  1119 }

  1122 void TMD5::Md5_finish()

  1123 {

  1124     static const TUint8 pad[64] = {

  1125     0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

  1126     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

  1127     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

  1128     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

  1129     };

  1130     TUint8 data[8];

  1131     TInt i;

  1133     for (i = 0; i < 8; ++i)

  1134     data[i] = (TUint8)(iState.count[i >> 2] >> ((i & 3) << 3));

  1135     Md5_append(pad, ((55 - (iState.count[0] >> 3)) & 63) + 1);

  1136     Md5_append(data, 8);

  1137     for (i = 0; i < 16; ++i)

  1138         iDigest[i] = (TUint8)(iState.abcd[i >> 2] >> ((i & 3) << 3));

  1140 }

  1142 //-------------------------------------------------------------------------------------------------------------------

  1144 /** reset MD5 to initial state */

  1145 void TMD5::Reset()

  1146 {

  1147     iState.count[0] = iState.count[1] = 0;

  1148     iState.abcd[0] = 0x67452301;

  1149     iState.abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;

  1150     iState.abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;

  1151     iState.abcd[3] = 0x10325476;

  1152 }

  1155 /**

  1156     Update MD5 with some data

  1157     @param aMessage descriptor with data

  1158 */

  1159 void TMD5::Update(const TDesC8& aMessage)

  1160 {

  1161     Md5_append((const TUint8*)aMessage.Ptr(), aMessage.Length());

  1162 }

  1164 /**

  1165     Finalise MD5 calculation

  1166     @param  aMessage descriptor with data

  1167     @return pointer to 16-byte array with MD5 hash

  1168 */

  1169 TPtrC8 TMD5::Final(const TDesC8& aMessage)

  1170 {

  1171     Update(aMessage);

  1172     Md5_finish();

  1173     return TPtrC8(iDigest, HashSize);

  1174 }

  1177 /**

  1178     Finalise MD5 calculation

  1179     @return pointer to 16-byte array with MD5 hash

  1180 */

  1181 TPtrC8 TMD5::Final()

  1182 {

  1183     Md5_finish();

  1184     return TPtrC8(iDigest, HashSize);

  1185 }

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--