// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

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

 // which accompanies this distribution, and is available

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

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 // f32test\server\t_mmc.cpp

 // Tests locking, unlocking and clearing of a password on a suitable

 // device.  Currently, this device is a MultiMediaCard.  The RFs API

 // allows the user to store the password.

 // This is a manual test, and the operator must observe that the notifier

 // appears exactly when indicated by the program.

 // 

 //

 #include <f32file.h>

 #include <e32test.h>

 #include <f32dbg.h>

 #include <f32fsys.h>

 // definitions from p32mmc.h

 const TInt KMMCCIDLength = 16;

 class TMMC

 	{

 public:

 	static inline TUint32 BigEndian32(const TUint8*);

 	static inline void BigEndian4Bytes(TUint8* aPtr, TUint32 aVal);

 	};

 inline TUint32 TMMC::BigEndian32(const TUint8* aPtr)

 	{return( (aPtr[0]<<24) | (aPtr[1]<<16) | (aPtr[2]<<8) | (aPtr[3]) );}

 inline void TMMC::BigEndian4Bytes(TUint8* aPtr, TUint32 aVal)

 	{

 	aPtr[0] = (TUint8)((aVal >> 24) & 0xFF);

 	aPtr[1] = (TUint8)((aVal >> 16) & 0xFF);

 	aPtr[2] = (TUint8)((aVal >> 8) & 0xFF);

 	aPtr[3] = (TUint8)(aVal & 0xFF);

 	}

 // local test data

 LOCAL_D RTest test(_L("t_mmc"));

 LOCAL_D RFs TheFs;

 LOCAL_D RFile TheFile;

 #if defined(__WINS__)

 _LIT(KSessionPath, "X:\\");

 const TInt KDrv = EDriveX;

 const TText KDrvLtr = 'x';

 #else

 _LIT(KSessionPath, "D:\\");

 const TInt KDrv = EDriveD;

 const TText KDrvLtr = 'd';

 #endif

 _LIT(KTestFileName, "testFile");

 enum TAccessType {EAccessUnlock, EAccessStore, EAccessCancel, EAccessWrongPw, EAccessNoNotifier};

 LOCAL_D TMediaPassword KNul, KPw1, KPw2, KPw3, KPw4, KPw5;

 #ifdef __WINS__

 	const static TUint8 cid0[KMMCCIDLength] =	// "CID0ccccccccccc#";

 		{

 		'C',	'I',	'D',	'0',

 		'c',	'c',	'c',	'c',

 		'c',	'c',	'c',	'c',

 		'c',	'c',	'c',	'#'

 		};

 #else

 	const static TUint8 cid0[KMMCCIDLength] =	// big-endian, CID0

 		{

 		0x06,	0x00,	0x00,	0x31,

 		0x36,	0x4d,	0x20,	0x20,

 		0x20,	0x00,	0xb4,	0xff,

 		0xff,	0xff,	0x63,	0xd9

 		};

 #endif

 // local test functions

 LOCAL_C void RemountMedia();

 LOCAL_C void ClearControllerStore();

 LOCAL_C void DeletePasswordFile();

 LOCAL_C TInt CreateFile();

 LOCAL_C TInt PWFileSize(TInt &aLength);

 LOCAL_C TInt AccessDisk(TAccessType aAccess, const TDesC8 &aPWD);

 LOCAL_C void TestHasPassword(TBool aIL, TBool aHP);

 LOCAL_C void TestLockUnlockR();

 LOCAL_C void TestNullPasswords();

 LOCAL_C void TestLockUnlock();

 LOCAL_C void TestPasswordStore();

 LOCAL_C void TestWriteToDisk();

 LOCAL_C void TestFormat();

 LOCAL_C void TestRemount();

 /** force a remount on the removable media. */

 LOCAL_C void RemountMedia()

 	{

 #ifdef __WINS__

 //	UserSvr::ForceRemountMedia(ERemovableMedia0);

 	User::After(1 * 1500 * 1000);

 #else

 //	UserSvr::ForceRemountMedia(ERemovableMedia0);

 //	User::After(1 * 1500 * 1000);

 	test.Printf(_L("Remove and re-insert card.  Press \'z\' when finished.\n"));

 	while (test.Getch() != 'z')

 		{ /* empty. */ }

 #endif

 	}

 /** ask the user to replace the current lockable media with another */

 LOCAL_C void ChangeMedia()

 	{

 #ifdef __WINS__

 	test.Printf(_L("Press f4 whilst holding down f5\n"));

 	test.Printf(_L("Press z when completed\n"));

 	while(test.Getch() != 'z')

 		{ /* empty */ }

 #else

 	test.Printf(_L("Remove and insert other card.  Press \'z\' when finished.\n"));

 	while (test.Getch() != 'z')

 		{ /* empty. */ }

 #endif

 	}

 /** disable auto-unlock by clearing controller store */

 LOCAL_C void ClearControllerStore()

 	{

 	TBuf8<1> nulSt;

 	test(TBusLocalDrive::WritePasswordData(nulSt) == KErrNone);// empty

 	test(TBusLocalDrive::PasswordStoreLengthInBytes() == 0);

 	}

 /** delete the password store file.  Does not affect the auto-unlock mechanism. */

 LOCAL_C void DeletePasswordFile()

 	{

 	TInt r;

 	TBuf<sizeof(KMediaPWrdFile)> mediaPWrdFile(KMediaPWrdFile);

 	mediaPWrdFile[0] = (TUint8) RFs::GetSystemDriveChar();

 	do

 		{

 		User::After(100 * 1000);

 		r = TheFs.Delete(mediaPWrdFile);

 		} while (r == KErrInUse);

 	test(r == KErrNone || r == KErrNotFound);

 	}

 /** attempt to create a file on the removable media and return any error code */

 LOCAL_C TInt CreateFile()

 	{

 	RFile f;

 	TInt r = f.Replace(TheFs, KTestFileName, EFileShareAny);

 	if (r == KErrNone)

 		f.Close();

 	return r;

 	}

 /** get size of the media store file in bytes, and return any error code */

 LOCAL_C TInt PWFileSize(TInt &aLength)

 	{

 	TInt r;										// error code

 	// allow low priority background writer thread to start and finish

 	User::After(1 * 1000 * 1000);

 	TBuf<sizeof(KMediaPWrdFile)> mediaPWrdFile(KMediaPWrdFile);

 	mediaPWrdFile[0] = (TUint8) RFs::GetSystemDriveChar();

 	RFile f;

 	if ((r = f.Open(TheFs, mediaPWrdFile, EFileShareAny)) == KErrNone)

 		{

 		r = f.Size(aLength);

 		f.Close();

 		}

 	return r;

 	}

 /**

  * write message to screen and attempt to access disk.  If card is locked then async

  * notifier will be brought up from within file server.

  */

 LOCAL_C TInt AccessDisk(TAccessType aAccess, const TDesC8 &aPWD)

 	{

 	TBuf16<16> pwd;

 	pwd.Copy((const TUint16 *)aPWD.Ptr(), aPWD.Length() / 2);

 	if (aAccess == EAccessUnlock || aAccess == EAccessStore)

 		test.Printf(_L("\"%S\": "), &pwd);

 	switch(aAccess)

 		{

 		case EAccessUnlock: 

 			test.Printf(_L("unlock\n"));

 			break;

 		case EAccessStore:

 			test.Printf(_L("store\n"));

 			break;

 		case EAccessCancel:

 			test.Printf(_L("cancel\n"));

 			break;

 		case EAccessWrongPw:

 			test.Printf(_L("wrong\n"));

 			break;

 		case EAccessNoNotifier:

 			test.Printf(_L("** no notifier **\n"));

 			break;

 		default:

 			test(EFalse);

 			break;

 		}

 	TInt r = TheFile.Open(TheFs, KTestFileName, EFileShareAny);

 	if(r == KErrNone)

 		TheFile.Close();

 	return r;

 	}

 /**

  * uses RFs::DriveInfo() to test if the card has a password.  Is checking

  * that iHasPassword in TMMCCard is maintained properly.

  */

 inline TBool bits_set(TUint aMsk, TUint aSel)

 	{

 	return (aMsk & aSel) == aSel;

 	}

 LOCAL_C void TestHasPassword(TBool aIL, TBool aHP)

 	{

 	const TInt d = KDrv;

 	RFs &fs = TheFs;

 	TDriveInfo di;

 	test(fs.Drive(di, d) == KErrNone);

 #ifdef __WINS__

 	test(aIL == bits_set(di.iMediaAtt, KMediaAttLocked | KMediaAttLockable | KMediaAttHasPassword));

 	test(aHP == bits_set(di.iMediaAtt, KMediaAttLockable | KMediaAttHasPassword));

 #else

 	test(aIL == bits_set(di.iMediaAtt, KMediaAttLocked | KMediaAttHasPassword));

 	test(aHP == bits_set(di.iMediaAtt, KMediaAttHasPassword));

 #endif

 	}

 // -------- test functions --------

 /**

  * test return values of LockDrive(), UnlockDrive() and ClearPassword()

  * without trying use the disk.  This tests that the functions return the

  * same values as the TBusLocalDrive functions.

  *

  *			EPbPswdUnlock		EPbPswdLock			EPbPswdClear

  *			right	wrong		right	wrong		right	wrong	

  * locked	None	AccDen		AccDec	AccDen		AccDen	AccDen	

  * unlocked	AldExst	AldExst		None	AccDec		None	AccDen	

  *

  * Locked means inaccessible, not just has password.

  */

 LOCAL_C void TestLockUnlockR()

 	{

 	test.Start(_L("TestLockUnlockR"));

 	const TInt d = KDrv;

 	RFs &fs = TheFs;

 	test.Next(_L("assign password"));

 	test(fs.LockDrive(d, KNul, KPw1, EFalse) == KErrNone);			// assign test password

 	TestHasPassword(EFalse, ETrue);

 	RemountMedia();													// card is now locked

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("lock locked card"));

 	test(fs.LockDrive(d, KPw2, KPw1, EFalse) == KErrAccessDenied);	// lock locked wrong

 	TestHasPassword(ETrue, ETrue);

 	test(fs.LockDrive(d, KPw1, KPw1, EFalse) == KErrAccessDenied);	// lock locked right

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("unlock locked card"));

 	test(fs.UnlockDrive(d, KPw2, EFalse) == KErrAccessDenied);		// unlock locked wrong

 	TestHasPassword(ETrue, ETrue);

 	test(fs.UnlockDrive(d, KPw1, EFalse) == KErrNone);				// unlock locked right

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("unlock unlocked card"));

 	test(fs.UnlockDrive(d, KPw1, EFalse) == KErrAlreadyExists);		// unlock unlocked right

 	TestHasPassword(EFalse, ETrue);

 	test(fs.UnlockDrive(d, KPw2, EFalse) == KErrAlreadyExists);		// unlock unlocked wrong

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("lock unlocked card"));

 	test(fs.LockDrive(d, KPw2, KPw1, EFalse) == KErrAccessDenied);	// lock unlocked wrong

 	TestHasPassword(EFalse, ETrue);

 	test(fs.LockDrive(d, KPw1, KPw1, EFalse) == KErrNone);			// lock unlocked right

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("clear unlocked card"));

 	test(fs.ClearPassword(d, KPw2) == KErrAccessDenied);			// clear unlocked wrong

 	TestHasPassword(EFalse, ETrue);

 	RemountMedia();

 	test(fs.UnlockDrive(d, KPw1, EFalse) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test(fs.ClearPassword(d, KPw1) == KErrNone);					// clear unlocked right

 	TestHasPassword(EFalse, EFalse);

 	test.Next(_L("assign password"));

 	test(fs.LockDrive(d, KNul, KPw1, EFalse) == KErrNone);			// assign test password

 	TestHasPassword(EFalse, ETrue);

 	RemountMedia();													// card is now locked

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("clear locked card"));

 	test(fs.ClearPassword(d, KPw2) == KErrAccessDenied);			// clear locked wrong

 	TestHasPassword(ETrue, ETrue);

 	test(fs.ClearPassword(d, KPw1) == KErrAccessDenied);			// clear locked right

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("clean up for following tests"));

 	test(fs.UnlockDrive(d, KPw1, EFalse) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test(fs.ClearPassword(d, KPw1) == KErrNone);

 	TestHasPassword(EFalse, EFalse);

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /** test the special cases where null passwords are used. */

 LOCAL_C void TestNullPasswords()

 	{

 	test.Start(_L("TestNullPasswords"));

 	test.Next(_L("card has no password"));

 	test(TheFs.LockDrive(KDrv, KNul, KNul, ETrue) == KErrAccessDenied);

 	test(TheFs.UnlockDrive(KDrv, KNul, ETrue) == KErrAlreadyExists);

 	test(TheFs.ClearPassword(KDrv, KNul) == KErrAccessDenied);

 	test.Next(_L("card has password and is unlocked"));

 	test(TheFs.LockDrive(KDrv, KNul, KPw1, ETrue) == KErrNone);

 	RemountMedia();

 	test(TheFs.LockDrive(KDrv, KNul, KNul, ETrue) == KErrAccessDenied);

 	test(TheFs.UnlockDrive(KDrv, KNul, ETrue) == KErrAlreadyExists);

 	test(TheFs.ClearPassword(KDrv, KNul) == KErrAccessDenied);

 	test(TheFs.ClearPassword(KDrv, KPw1) == KErrNone);

 	test.Next(_L("unlock with null disallowed"));

 	RemountMedia();

 	test(TheFs.UnlockDrive(KDrv, KNul, ETrue) == KErrAccessDenied);

 	test.Next(_L("check can still use card"));

 	test(TheFs.LockDrive(KDrv, KNul, KPw1, ETrue) == KErrNone);	// check can still use

 	test(TheFs.ClearPassword(KDrv, KPw1) == KErrNone);

 	test.Next(_L("clean up for following tests"));

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /** test LockDrive(), UnlockDrive() and ClearPassword() with locked media notifier */

 LOCAL_C void TestLockUnlock()

 	{

 	test.Start(_L("TestLockUnlock"));

 	const TInt d = KDrv;

 	RFs &fs = TheFs;

 	test.Next(_L("create test file"));

 	test(CreateFile() == KErrNone);

 	test.Next(_L("lock card and don't store"));

 	test(fs.LockDrive(d, KNul, KPw1, EFalse) == KErrNone);			// unlocked KPw1

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("access with right pwd"));

 	RemountMedia();													// locked KPw1

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessUnlock, KPw1) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("access with cancelled pwd"));

 	RemountMedia();													// locked KPw1	

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessCancel, KNul) == KErrLocked);

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("access with new stored pwd"));

 	RemountMedia();

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessStore, KPw1) == KErrNone);				// unlocked KPw1

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("access with stored pwd"));

 	RemountMedia();													// unlocked KPw1 (use store)

 	TestHasPassword(EFalse, ETrue);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("lock wrong pwd"));

 	test(fs.LockDrive(d, KPw3, KPw2, EFalse) == KErrAccessDenied);	// unlocked KPw1

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("change pwd"));

 	test(fs.LockDrive(d, KPw1, KPw2, EFalse) == KErrNone);			// unlocked KPw2 (rem from store)

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("mapping removed from store"));

 	RemountMedia();

 	test(AccessDisk(EAccessUnlock, KPw2) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("wrong password"));

 	RemountMedia();													// locked KPw2

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessWrongPw, KNul) == KErrLocked);

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("unlocked card"));

 	test(fs.UnlockDrive(d, KPw2, ETrue) == KErrNone);				// unlocked KPw2 (add to store)

 	TestHasPassword(EFalse, ETrue);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);			// before power down

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("clear wrong pwd"));

 	test(fs.ClearPassword(d, KPw1) == KErrAccessDenied);			// KPw2 backup kept

 	TestHasPassword(EFalse, ETrue);

 	RemountMedia();													// unlocked KPw2 (use store)

 	TestHasPassword(EFalse, ETrue);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("change pwd"));

 	test(fs.LockDrive(d, KPw2, KPw1, EFalse) == KErrNone);			// locked KPw1 (rem from store)

 	TestHasPassword(EFalse, ETrue);

 	RemountMedia();

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessUnlock, KPw1) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("cancelled pwd"));

 	RemountMedia();

 	TestHasPassword(ETrue, ETrue);

 	test(AccessDisk(EAccessCancel, KNul) == KErrLocked);

 	TestHasPassword(ETrue, ETrue);

 	test.Next(_L("clean up for following tests"));

 	test(fs.UnlockDrive(d, KPw1, EFalse) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test(fs.ClearPassword(KDrv, KPw1) == KErrNone);

 	TestHasPassword(EFalse, EFalse);

 	RemountMedia();

 	TestHasPassword(EFalse, EFalse);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	TestHasPassword(EFalse, EFalse);

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /**

  * test password store by accessing disk in various states.  Ensures password

  * store file is right size after each operation.  More detailed checking of

  * the TBusLocalDrive::ReadPasswordData() ouput is done in t_pwstr.

  */

 LOCAL_C void TestPasswordStore()

 	{

 	test.Start(_L("TestPasswordStore"));

 //	TInt r;										// general error code

 	RFs &fs = TheFs;

 	const TInt d = KDrv;

 	test.Next(_L("create test file on first media"));

 	test(CreateFile() == KErrNone);

 	test.Next(_L("lock card and don't store"));

 	test(fs.LockDrive(d, KNul, KPw5, EFalse) == KErrNone);	// {}

 	TestHasPassword(EFalse, ETrue);

 	TInt size1;

 	test(PWFileSize(size1) == KErrNotFound);

 	test.Next(_L("lock card and store"));

 	test(fs.LockDrive(d, KPw5, KPw3, ETrue) == KErrNone);	// {0 |-> 3}

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("access media1 with stored password"));

 	RemountMedia();

 	TestHasPassword(EFalse, ETrue);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("test password file exists"));

 	test(PWFileSize(size1) == KErrNone);

 	test(size1 == 16 + 4 + KPw3.Length());

 	test.Next(_L("change cards and add second password to store"));

 	ChangeMedia();

 	test.Next(_L("create test file on second media"));

 	test(CreateFile() == KErrNone);

 	test.Next(_L("lock card and store"));

 	test(fs.LockDrive(d, KNul, KPw4, ETrue) == KErrNone);	// {0 |-> 3, 1 |-> 4}

 	TestHasPassword(EFalse, ETrue);

 	TInt size2;

 	test(PWFileSize(size2) == KErrNone);

 	test(size2 == 16 + 4 + KPw3.Length() + 16 + 4 + KPw4.Length());

 	test.Next(_L("access media2 with stored password"));

 	RemountMedia();

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	TestHasPassword(EFalse, ETrue);

 	test.Next(_L("change password"));

 	test(fs.LockDrive(d, KPw4, KPw5, ETrue) == KErrNone);	// {0 |-> 3, 1 |-> 5}

 	TestHasPassword(EFalse, ETrue);

 	TInt size3;

 	test(PWFileSize(size3) == KErrNone);

 	test(size3 == 16 + 4 + KPw3.Length() + 16 + 4 + KPw5.Length());

 	test.Next(_L("access media1 with stored password"));

 	ChangeMedia();

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	test.Next(_L("remove password from media 1"));

 	test(fs.ClearPassword(d, KPw3) == KErrNone);			// {1 |-> 5}	- 0 |-> 3

 	TestHasPassword(EFalse, EFalse);

 	test(PWFileSize(size3) == KErrNone);

 	test(size3 == 16 + 4 + KPw5.Length());

 	test.Next(_L("clean up for following tests"));

 	ChangeMedia();

 	test(fs.ClearPassword(d, KPw5) == KErrNone);			// {}			- 1 |-> 5

 	TestHasPassword(EFalse, EFalse);

 	test(PWFileSize(size3) == KErrNone);

 	test(size3 == 0);

 	test.Printf(_L("replace original card\n"));

 	ChangeMedia();											// use original card

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /**

  * check the spin off delayed writer thread can work when many requests are queued.

  * 

  * The background writer runs at EPriorityMuchLess, so it will not be executed until

  * this thread sleeps.

  */

 LOCAL_C void TestWriteToDisk()

 	{

 	test.Start(_L("TestWriteToDisk"));

 	TInt r;										// error code

 	TBuf8<1> noMappings;

 	test.Next(_L("Queuing threads"));

 	test.Printf(_L("Queuing 100 writes\n"));

 	const TInt KQueueCnt = 100;

 	TInt i;

 	TMediaPassword oldPswd;						// empty - no password at start

 	TMediaPassword newPswd;

 	for (i = 0; i < KQueueCnt; ++i)

 		{

 		newPswd.Fill(i, KMaxMediaPassword);

 		test(TheFs.LockDrive(KDrv, oldPswd, newPswd, ETrue) == KErrNone);

 		oldPswd.Copy(newPswd);

 		}

 	test.Printf(_L("Waiting 20 seconds for threads to complete\n"));

 	User::After(20 * 1000 * 1000);

 	// check password file contains the last writing.

 	test.Next(_L("check password file contains last writing"));

 	const TInt KFileLen = 16 + sizeof(TUint32) + KMaxMediaPassword;

 	RFile f;

 	TBuf<sizeof(KMediaPWrdFile)> mediaPWrdFile(KMediaPWrdFile);

 	mediaPWrdFile[0] = (TUint8) RFs::GetSystemDriveChar();

 	test(f.Open(TheFs, mediaPWrdFile, EFileShareExclusive | EFileStream | EFileRead) == KErrNone);

 	TInt sz;

 	test(f.Size(sz) == KErrNone);

 	test(sz == KFileLen);

 	TBuf8<KFileLen> chkBuf;

 	test(f.Read(chkBuf, KFileLen) == KErrNone);

 	// defer checking buffer contents until after password cleared so not left

 	// with locked card if test fails.

 	f.Close();

 	test(TheFs.ClearPassword(KDrv, oldPswd) == KErrNone);

 	User::After(1 * 1000 * 1000);				// wait to finish writing

 	r = TheFs.Delete(mediaPWrdFile);

 	test(r == KErrNone || r == KErrNotFound);

 	test(TBusLocalDrive::WritePasswordData(noMappings) == KErrNone);

 	// check contents of password file correspond to last written buffer.

 	test(chkBuf.Length() == KFileLen);

 	test(chkBuf.Mid(0, KMMCCIDLength) == TPtrC8(cid0, KMMCCIDLength));

 	const TUint32 len = TMMC::BigEndian32(chkBuf.Mid(KMMCCIDLength, sizeof(TUint32)).Ptr());

 	test(len == TInt(KMaxMediaPassword));

 	test(chkBuf.Mid(KMMCCIDLength + sizeof(TUint32), KMMCCIDLength) == oldPswd);

 	test.Next(_L("clean up for following tests"));

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /** test unable to format locked card */

 LOCAL_C void TestFormat()

 	{

 	test.Start(_L("TestFormat"));

 //	TInt r;										// error code

 	RFs &fs = TheFs;

 	const TInt d = KDrv;

 	TBuf<3> bfDrv;

 	bfDrv.Append(KDrvLtr);

 	_LIT(KBP, ":\\");

 	bfDrv.Append(KBP);

 	test.Next(_L("create test file"));

 	test(CreateFile() == KErrNone);

 	test.Next(_L("lock drive"));

 	test(TheFs.LockDrive(KDrv, KNul, KPw2, EFalse) == KErrNone);

 	RemountMedia();

 	test.Next(_L("unlock card and don't store"));

 	test(AccessDisk(EAccessUnlock, KPw2) == KErrNone);

 	// format unlocked drive

 	test.Next(_L("format unlocked card"));

 	RFormat fmt;

 	TInt count;

 	test(fmt.Open(fs, bfDrv, EHighDensity, count) == KErrNone);

 	while (count > 0)

 		{

 		test.Printf(_L("\rfmt:%d  "), count);

 		test(fmt.Next(count) == KErrNone);

 		}

 	test.Printf(_L("\n"));

 	fmt.Close();

 	test.Next(_L("format locked media"));

 	RemountMedia();								// locked KPw2

 	test.Printf(_L("Notifier: No password required. Press cancel. \n"));

 	test(fmt.Open(fs, bfDrv, EHighDensity, count) == KErrLocked);

 	test.Next(_L("unlock locked card"));

 	test(fs.UnlockDrive(d, KPw2, EFalse) == KErrNone);

 	test(fs.ClearPassword(d, KPw2) == KErrNone);

 	test.Next(_L("create test file"));

 	test(CreateFile() == KErrNone);

 	test.Next(_L("remount media, check not locked"));

 	RemountMedia();

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	test.Next(_L("clean up for following tests"));

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /** do media change with file open */

 LOCAL_C void TestRemount()

 	{

 	test.Start(_L("TestRemount"));

 //	TInt r;										// general error code

 	RFs &fs = TheFs;

 	const TInt d = KDrv;

 	test.Next(_L("create file"));

 	TFileName fn;

 	fn.Append(KDrvLtr);

 	_LIT(KFN, ":\\openfile");

 	fn.Append(KFN);

 	test.Printf(_L("fn = \"%S\"\n"), &fn);

 	RFile f;

 	test(f.Replace(fs, fn, EFileShareAny) == KErrNone);

 	test.Next(_L("lock card"));

 	test(fs.LockDrive(d, KNul, KPw5, EFalse) == KErrNone);

 	test.Next(_L("access with right pwd"));

 	RemountMedia();

 	test(AccessDisk(EAccessUnlock, KPw5) == KErrNone);

 	test.Next(_L("access with wrong pwd"));

 	RemountMedia();

 	test(AccessDisk(EAccessWrongPw, KNul) == KErrLocked);

 	test.Next(_L("access with cancelled pwd"));

 	RemountMedia();

 	test(AccessDisk(EAccessCancel, KNul) == KErrLocked);

 	test.Next(_L("clear password"));

 	test(fs.UnlockDrive(d, KPw5, EFalse) == KErrNone);

 	test(fs.ClearPassword(d, KPw5) == KErrNone);

 	test(AccessDisk(EAccessNoNotifier, KNul) == KErrNone);

 	test.Next(_L("close and delete file"));

 	f.Close();

 	test(fs.Delete(fn) == KErrNone);

 	test.Next(_L("clean up for following tests"));

 	ClearControllerStore();

 	DeletePasswordFile();

 	test.End();

 	}

 /**

  * entry point.  Displays instructions; sets up heap checking; sets up

  * file server session and calls individual tests.  Mounts drive for WINS.

  */

 _LIT(KSDProtDriverFileName,"MEDSDP");

 _LIT(KSDProtDriverObjName,"Media.SdP");

 GLDEF_C TInt E32Main()

     {

  	__UHEAP_MARK;

 	test.Title();

 	test.Start(_L("Starting T_MMC"));

 	test.Printf(_L("The notifier should only apear along with user instructions.\n"));

 	test.Printf(_L("The test has failed otherwise.\n"));

 	test.Printf(_L("\n"));

 	test.Printf(_L("Use return to simulate unlock button on notifier\n"));

 	test.Printf(_L("Use space to simulate store button on notifier\n"));

 	test.Printf(_L("Use escape to simulate cancel button on notifier\n"));

 	test.Printf(_L("Press a key to continue ...\n\n"));

 	test.Getch();

 	test(TheFs.Connect() == KErrNone);

 	TBuf<sizeof(KMediaPWrdFile)> mediaPWrdFile(KMediaPWrdFile);

 	mediaPWrdFile[0] = (TUint8) RFs::GetSystemDriveChar();

 	TParsePtrC ppc(mediaPWrdFile);

 	TInt r = TheFs.MkDir(ppc.DriveAndPath());

 	test(r == KErrNone || r == KErrAlreadyExists);

 	// The media driver for the protected area of the SD card uses mount

 	// info. This is also used for password unlocking by the MMC media driver.

 	// Due to a temporary problem with the way mount info. is assigned to DMedia

 	// objects which results in a conflict between the two drivers, unload

 	// the protected area SD card driver for duration of test.

 	TheFs.RemountDrive(KDrv,NULL,KLocDrvRemountPostponeRemount);

 	User::FreePhysicalDevice(KSDProtDriverObjName);

 	test(TheFs.SetSessionPath(KSessionPath) == KErrNone);

 	// initialize the TMediaPassword data

 	KNul.Copy(reinterpret_cast<const TUint8 *>(L""), 0);

 	KPw1.Copy(reinterpret_cast<const TUint8 *>(L"b"), 2);

 	KPw2.Copy(reinterpret_cast<const TUint8 *>(L"cd"), 4);

 	KPw3.Copy(reinterpret_cast<const TUint8 *>(L"def"), 6);

 	KPw4.Copy(reinterpret_cast<const TUint8 *>(L"efgh"), 8);

 	KPw5.Copy(reinterpret_cast<const TUint8 *>(L"fghij"), 10);

 	test.Next(_L("calling ClearControllerStore"));

 	ClearControllerStore();

 	test.Next(_L("calling DeletePasswordFile"));

 	DeletePasswordFile();

 	test.Next(_L("calling TestLockUnlockR"));

 	TestLockUnlockR();

 	test.Next(_L("calling TestNullPasswords"));

 	TestNullPasswords();

 	test.Next(_L("calling TestLockUnlock"));

 	TestLockUnlock();

 	test.Next(_L("calling TestPasswordStore"));

 	TestPasswordStore();

 	test.Next(_L("calling TestWriteToDisk"));

 	TestWriteToDisk();

 	test.Next(_L("calling TestFormat"));

 	TestFormat();

 	test.Next(_L("calling TestRemount"));

 	TestRemount();

 	// Restore SD Card protected area media driver

 	User::LoadPhysicalDevice(KSDProtDriverFileName);

 	TheFs.Close();

 	test.End();

 	test.Close();

 	__UHEAP_MARKEND;

 	return KErrNone;

     }