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os/kernelhwsrv/userlibandfileserver/fileserver/sfile/sf_nbs.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 // Copyright (c) 1995-2009 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 //

    15 

    16 #include "sf_std.h"

    17 

    18 TInt TFsMkDir::DoRequestL(CFsRequest* aRequest)

    19 //

    20 // Make a directory path.

    21 //

    22 	{

    23 	__PRINT(_L("TFsMkDir::DoRequestL(CFsRequest* aRequest)"));

    24 

    25     TInt r = CheckDiskSpace(0, aRequest);

    26     if(r != KErrNone)

    27         return r;

    28 

    29 	r=aRequest->Drive()->CheckMount();

    30 	if (r!=KErrNone)

    31 		return(r);

    32 	

    33     if (aRequest->Src().IsRoot())

    34 		return(KErrAlreadyExists);

    35 	

    36     TPtrC ptr;

    37 	ptr.Set(aRequest->Src().Path().Ptr(), aRequest->Src().Path().Length()-1);

    38 	if (ptr.Length()<=1)

    39 		return(KErrBadName);

    40 	

    41     if (IsIllegalFullName(aRequest->Src().FullName()))

    42 		return(KErrBadName);

    43 	

    44     if (aRequest->Message().Int1())

    45 		{

    46 		TLex lex(ptr);

    47 		TFileName filename;

    48 		FOREVER

    49 			{

    50 			lex.Inc(); // Skip a delimiter

    51 			TInt res=lex.Remainder().Locate(KPathDelimiter);

    52 			if (res==KErrNotFound)

    53 				break;

    54 	

    55     		lex.Inc(res);

    56 			filename+=lex.MarkedToken();	

    57 			lex.Mark();

    58 			TEntry entry;

    59 			if ((r=aRequest->Drive()->Entry(filename,entry))==KErrNone)

    60 				{

    61 				if (!entry.IsDir())

    62 					return(KErrAccessDenied);

    63 				continue;

    64 				}

    65 	

    66     		if (r!=KErrNotFound)

    67 				return(r);

    68 	

    69     		if ((r=aRequest->Drive()->MkDir(filename))!=KErrNone)

    70 				return(r);

    71 			}

    72 		}

    73 	

    74     return(aRequest->Drive()->MkDir(ptr));

    75 	}

    76 

    77 TInt TFsMkDir::Initialise(CFsRequest* aRequest)

    78 //

    79 //

    80 //

    81 	{

    82 	TInt r=ParseSubstPtr0(aRequest,aRequest->Src());

    83 	if (r!=KErrNone)

    84 		return(r);

    85 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysMkDir,&KCapFsPriMkDir,&KCapFsROMkDir, __PLATSEC_DIAGNOSTIC_STRING("Make Directory"));

    86 	return(r);

    87 	}

    88 

    89 

    90 TInt TFsRmDir::DoRequestL(CFsRequest* aRequest)

    91 //

    92 // Remove a directory.

    93 //

    94 	{

    95 	__PRINT(_L("TFsRmDir::DoRequestL(CFsRequest* aRequest)"));

    96 	if (aRequest->Src().IsRoot())

    97 		return(KErrInUse);

    98 	if (IsIllegalFullName(aRequest->Src().FullName()))

    99 		return(KErrBadName);

   100 	TPtrC ptr;

   101 	ptr.Set(aRequest->Src().Path().Ptr(), aRequest->Src().Path().Length()-1);

   102 	return(aRequest->Drive()->RmDir(ptr));

   103 	}

   104 

   105 TInt TFsRmDir::Initialise(CFsRequest* aRequest)

   106 //

   107 //

   108 //

   109 	{

   110 	TInt r=ParseSubstPtr0(aRequest,aRequest->Src());

   111 	if (r!=KErrNone)

   112 		return(r);

   113 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysRmDir,&KCapFsPriRmDir,&KCapFsRORmDir, __PLATSEC_DIAGNOSTIC_STRING("Remove Directory"));

   114 	return(r);

   115 	}

   116 

   117 

   118 TInt TFsDelete::DoRequestL(CFsRequest* aRequest)

   119 //

   120 // Delete a file.

   121 //

   122 	{

   123 	__PRINT(_L("TFsDelete::DoRequestL(CFsRequest* aRequest)"));

   124 	return(aRequest->Drive()->Delete(aRequest->Src().FullName().Mid(2)));

   125 	}

   126 

   127 TInt TFsDelete::Initialise(CFsRequest* aRequest)

   128 //

   129 //

   130 //

   131 	{

   132 	TInt r=ParseNoWildSubstCheckPtr0(aRequest,aRequest->Src());

   133 	if (r!=KErrNone)

   134 		return(r);

   135 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysDelete,&KCapFsPriDelete,&KCapFsRODelete, __PLATSEC_DIAGNOSTIC_STRING("Delete"));

   136 	return(r);

   137 	}

   138 

   139 

   140 TInt TFsRename::DoRequestL(CFsRequest* aRequest)

   141 //

   142 // Rename a file or directory. Wild cards not allowed.

   143 //

   144 	{

   145 	__PRINT(_L("TFsRename::DoRequestL(CFsRequest* aRequest)"));

   146     TInt r = CheckDiskSpace(0, aRequest);

   147     if(r != KErrNone)

   148         return r;

   149 	

   150     r = aRequest->Drive()->Rename(aRequest->Src().FullName().Mid(2),aRequest->Dest().FullName().Mid(2));

   151 	return (r);

   152 	}

   153 

   154 TInt TFsRename::Initialise(CFsRequest* aRequest)

   155 //

   156 //

   157 //

   158 	{

   159 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());

   160 	if (r!=KErrNone)

   161 		return(r);

   162 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysRename,&KCapFsPriRename,&KCapFsRORename, __PLATSEC_DIAGNOSTIC_STRING("File Server Rename"));

   163 	if(r!=KErrNone)

   164 		return(r);

   165 	TDrive* pOldDrive=aRequest->Drive();

   166 	if ((r=ParseNoWildSubstCheckPathPtr1(aRequest,aRequest->Dest()))!=KErrNone)

   167 		return(r);

   168 	r=PathCheck(aRequest,aRequest->Dest().FullName().Mid(2),&KCapFsSysRename,&KCapFsPriRename,&KCapFsRORename, __PLATSEC_DIAGNOSTIC_STRING("File Server Rename"));	

   169 	if(r == KErrNone)

   170 		{

   171 		if (pOldDrive!=aRequest->Drive())

   172 			r=KErrArgument;

   173 		}

   174 	return(r);

   175 	}

   176 

   177 

   178 TInt TFsReplace::DoRequestL(CFsRequest* aRequest)

   179 //

   180 // Replace an old file with a new file atomically

   181 //

   182 	{

   183 	__PRINT(_L("TFsReplace::DoRequestL(CFsRequest* aRequest)"));

   184 

   185     TInt r = CheckDiskSpace(0, aRequest);

   186     if(r != KErrNone)

   187         return r;

   188 

   189 	return(aRequest->Drive()->Replace(aRequest->Src().FullName().Mid(2),aRequest->Dest().FullName().Mid(2)));

   190 	}

   191 

   192 TInt TFsReplace::Initialise(CFsRequest* aRequest)

   193 //

   194 //

   195 //

   196 	{

   197 	TInt r=ParseNoWildSubstCheckPtr0(aRequest,aRequest->Src());

   198 	if (r!=KErrNone)

   199 		return(r);

   200 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysReplace,&KCapFsPriReplace,&KCapFsROReplace, __PLATSEC_DIAGNOSTIC_STRING("File Server Replace"));	

   201 	if(r!=KErrNone)

   202 		return(r);

   203 	TDrive* pOldDrive=aRequest->Drive();

   204 	if ((r=ParseNoWildSubstCheckPtr1(aRequest,aRequest->Dest()))!=KErrNone)

   205 		return(r);

   206 	r=PathCheck(aRequest,aRequest->Dest().FullName().Mid(2),&KCapFsSysReplace,&KCapFsPriReplace,&KCapFsROReplace, __PLATSEC_DIAGNOSTIC_STRING("File Server Replace"));	

   207 	if(r == KErrNone)

   208 		{

   209 		if (pOldDrive!=aRequest->Drive())

   210 			r=KErrArgument;

   211 		}

   212 	return(r);

   213 	}

   214 

   215 

   216 TInt TFsEntry::DoRequestL(CFsRequest* aRequest)

   217 //

   218 // Get all the entry details.

   219 //

   220 	{

   221 	__PRINT(_L("TInt TFsEntry::DoRequestL(CFsRequest* aRequest)"));

   222 

   223 	TEntry t; 

   224 	TPtrC filePath = aRequest->Src().FullName().Mid(2);

   225 	TInt r=aRequest->Drive()->Entry(filePath,t);

   226 	if (r!=KErrNone)

   227 		return(r);

   228 

   229 	// If the file is open, get the file size from the CFileCB object as there may be cached data

   230 	CFileCB* file;

   231 	aRequest->Drive()->IsFileOpen(filePath, file);

   232 	if (file)

   233 		t.SetFileSize(file->CachedSize64());

   234 

   235 	TPckgC<TEntry> p(t);

   236 	aRequest->WriteL(KMsgPtr1,p);

   237 	return(KErrNone);

   238 	}

   239 

   240 TInt TFsEntry::Initialise(CFsRequest* aRequest)

   241 //

   242 //

   243 //

   244 	{

   245 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());

   246 	if (r!=KErrNone)

   247 		return(r);

   248 

   249 	// Check the capabilites but always allow the entry to be read for private, system and 

   250 	// resource directories as long as there are no sub folders or files specified

   251 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsEntry, __PLATSEC_DIAGNOSTIC_STRING("Entry"), ETrue);	

   252 

   253 	return(r);

   254 	}

   255 

   256 

   257 TInt TFsSetEntry::DoRequestL(CFsRequest* aRequest)

   258 //

   259 // Set the attributes and the modified date and time.

   260 //

   261 	{

   262 	__PRINT(_L("TFsSetEntry::DoRequestL(CFsRequest* aRequest)"));

   263 

   264     TInt r = CheckDiskSpace(0, aRequest);

   265     if(r != KErrNone)

   266         return r;

   267 

   268 	TTime entryTime;

   269 	TPckgBuf<TTime> timeBuf;

   270 	aRequest->ReadL(KMsgPtr1,timeBuf);

   271 	entryTime=timeBuf();

   272 	const RMessage2& msg = aRequest->Message();

   273 

   274 	return(aRequest->Drive()->SetEntry(aRequest->Src().FullName().Mid(2),entryTime,msg.Int2(),msg.Int3()));

   275 	}

   276 

   277 

   278 TInt TFsSetEntry::Initialise(CFsRequest* aRequest)

   279 //

   280 //

   281 //

   282 	{

   283 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());

   284 	if (r!=KErrNone)

   285 		return(r);

   286  	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysSetEntry,&KCapFsPriSetEntry,&KCapFsROSetEntry, __PLATSEC_DIAGNOSTIC_STRING("Set Entry"));	

   287 	return(r);

   288 	}

   289 

   290 LOCAL_C void FsReadFileSectionFileClose(CFsRequest* aRequest, CFileShare* aShare)

   291 	{

   292 	aRequest->Session()->DecResourceCount();

   293 	TInt handle = aRequest->Session()->Handles().At(aShare, EFalse);

   294 	aRequest->Session()->Handles().Remove(handle,ETrue);

   295 	// close the file share

   296 	aRequest->SetScratchValue64(0);

   297 	}

   298 

   299 LOCAL_C CFileShare* FsReadFileSectionFileOpen(CFsRequest* aRequest)

   300 	{

   301 	TInt handle;

   302 	TUint32 mode = EFileShareReadersOrWriters | EFileRead | EFileReadAheadOff;

   303 

   304 	TInt r = aRequest->Drive()->FileOpen(aRequest,handle,aRequest->Src().FullName().Mid(2),mode,EFileOpen);

   305 	if (r!=KErrNone)

   306 		return(NULL);

   307 

   308 	CFileShare* share = (CFileShare*) SessionObjectFromHandle(handle, FileShares->UniqueID(), aRequest->Session());

   309 	

   310 	aRequest->Session()->IncResourceCount();

   311 

   312 	CFileCB& file = share->File();

   313 	if (!file.FileCache())

   314 		{

   315 		FsReadFileSectionFileClose(aRequest, share);

   316 		share = NULL;

   317 		}

   318 	return share;

   319 	}

   320 

   321 TInt TFsReadFileSection::Complete(CFsRequest* aRequest)

   322 	{

   323 	FsReadFileSectionFileClose(aRequest, (CFileShare*) aRequest->ScratchValue());

   324 

   325 	return CFsRequest::EReqActionComplete;

   326 	}

   327 

   328 TInt TFsReadFileSection::DoRequestL(CFsRequest* aRequest)

   329 //

   330 //	Read from a file regardless of lock state

   331 //

   332 	{

   333 	__PRINT(_L("TFsReadFileSection::DoRequestL(CFsRequest* aRequest)"));

   334 	

   335 	TAny* pDes=(TAny*)(aRequest->Message().Ptr0());

   336 	TInt64 pos;

   337 	if(aRequest->IsDescData(KMsgPtr2))

   338 		{

   339 		TPckg<TInt64> pkPos(pos);

   340 		aRequest->ReadL(KMsgPtr2, pkPos);

   341 		}

   342 	else

   343 		{

   344 		pos = MAKE_TINT64(0,aRequest->Message().Int2());

   345 		}

   346 	TInt len=aRequest->Message().Int3();

   347 

   348 	// Try to open file so we can take advantage of file caching

   349 	CFileShare* share = FsReadFileSectionFileOpen(aRequest);

   350 	if (share)

   351 		{

   352 		CFsMessageRequest& msgRequest = *(CFsMessageRequest*) aRequest;

   353 		__ASSERT_DEBUG(msgRequest.CurrentOperationPtr() == NULL, Fault(EBadOperationIndex));

   354 		CFileCB& file = share->File();

   355 		TInt64 size = file.Size64();

   356 		TInt r = KErrNone;

   357 		if (pos > size)

   358 			pos = size;

   359 		if (pos + len > size)

   360 		// filesize - pos shall of TInt size

   361 		// Hence to suppress warning

   362 			len = (TInt)(size - pos);

   363 		if (len <= 0)

   364 			r = KErrArgument;

   365 		if (r == KErrNone)

   366 			r = msgRequest.PushOperation(pos, len, (TDesC8*) pDes, 0, TFsReadFileSection::Complete, 0, EFsFileRead);

   367 		msgRequest.SetState(CFsRequest::EReqStatePostInitialise);	// DO call PostInitialise()

   368 		if (r == KErrNone)

   369 			{

   370 			aRequest->SetScratchValue64( MAKE_TINT64(ETrue, (TUint) share) );

   371 			return CFsRequest::EReqActionBusy; // dispatch the request again

   372 			}

   373 		FsReadFileSectionFileClose(aRequest, share);

   374 		}

   375 

   376 	TInt r = KErrNone;

   377 	if (len < 0)

   378 		r = KErrArgument;

   379 	else if (len > 0)

   380 		r = aRequest->Drive()->ReadFileSection64(aRequest->Src().FullName().Mid(2),pos,pDes,len,aRequest->Message());

   381 

   382 	// zero return buffer, but only if we haven't written any data to it already, otherwise kernel's

   383 	// writeback of descriptor length will conflict with that wrttien by media driver

   384 	if (r != KErrNone || len == 0)

   385 		aRequest->WriteL(KMsgPtr0,KNullDesC8);

   386 	

   387 	return r == KErrEof ? KErrNone : r;  

   388 	}

   389 

   390 

   391 TInt TFsReadFileSection::Initialise(CFsRequest* aRequest)

   392 //

   393 //

   394 //

   395 	{

   396 	TInt r=ParseNoWildSubstFileCheckPtr1(aRequest,aRequest->Src());

   397 	if (r!=KErrNone)

   398 		return(r);

   399 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysReadFileSection,&KCapFsPriReadFileSection, __PLATSEC_DIAGNOSTIC_STRING("Read File Section"));	

   400 	return(r);

   401 	}

   402 

   403 

   404 

   405 TInt TFsCheckDisk::DoRequestL(CFsRequest* aRequest)

   406 //

   407 // Check the disk's integrity

   408 //

   409 	{

   410 

   411 	__PRINT(_L("TFsCheckDisk::DoRequestL(CFsRequest* aRequest)"));

   412 

   413 	// flush all files on this drive

   414 	TInt r = aRequest->Drive()->FlushCachedFileInfo();

   415 	if (r == CFsRequest::EReqActionBusy)	// ignore any flush errors

   416 		return(r);

   417 

   418 	return(aRequest->Drive()->CheckDisk());

   419 	}

   420 

   421 

   422 TInt TFsCheckDisk::Initialise(CFsRequest* aRequest)

   423 //

   424 //

   425 //

   426 	{

   427 	if (!KCapFsCheckDisk.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("CheckDisk")))						

   428 		return KErrPermissionDenied;

   429 	return ParseSubstPtr0(aRequest,aRequest->Src());	//may make the rfs function call take a drive instead of path

   430 	}

   431 

   432 TInt TFsScanDrive::DoRequestL(CFsRequest* aRequest)

   433 //

   434 //

   435 //

   436 	{

   437 	__PRINT(_L("TFsScanDrive::DoRequestL(CFsRequest* aRequest)"));

   438 

   439 	// flush all files on this drive

   440 	TInt r = aRequest->Drive()->FlushCachedFileInfo();

   441 	if (r == CFsRequest::EReqActionBusy)	// ignore any flush errors

   442 		return(r);

   443 

   444 	r=aRequest->Drive()->CheckMount();

   445 	if(r!=KErrNone)

   446 		return(r);

   447 	if (aRequest->Drive()->CurrentMount().LockStatus()<0)

   448 		return(KErrInUse);

   449 	r=aRequest->Drive()->ScanDrive();

   450 	// notify sessions since drive contents may have changed

   451 	if(r==KErrNone)

   452 		FsNotify::DiskChange(aRequest->DriveNumber());

   453 	return(r);

   454 	}

   455 

   456 TInt TFsScanDrive::Initialise(CFsRequest* aRequest)

   457 //

   458 //

   459 //

   460 	{

   461 	TInt r;

   462 	if(!KCapFsScanDrive.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("ScanDrive")))	

   463 		return KErrPermissionDenied;

   464 	r=ParseSubstPtr0(aRequest,aRequest->Src());		//may make the rfs function call take a drive instead of path

   465 	return(r);										//then  no need for parse, just needs to check for susted and reject them

   466 	}

   467 

   468 TInt TFsGetShortName::DoRequestL(CFsRequest* aRequest)

   469 //

   470 // Get the short name associated with a long file name

   471 //

   472 	{

   473 	__PRINT(_L("TFsGetShortName::DoRequestL(CFsRequest* aRequest)"));

   474 	TBuf<0x10> shortName;

   475 	TInt r=aRequest->Drive()->GetShortName(aRequest->Src().FullName().Mid(2),shortName);

   476 	if (r!=KErrNone)

   477 		return(r);

   478 	aRequest->WriteL(KMsgPtr1,shortName);

   479 	return(KErrNone);

   480 	}

   481 

   482 TInt TFsGetShortName::Initialise(CFsRequest* aRequest)

   483 //

   484 //

   485 //

   486 	{

   487 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());	

   488 	if (r!=KErrNone)

   489 		return(r);

   490 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysGetShortName,&KCapFsPriGetShortName, __PLATSEC_DIAGNOSTIC_STRING("Get Short Name"));	

   491 	return(r);

   492 	}

   493 

   494 

   495 TInt TFsGetLongName::DoRequestL(CFsRequest* aRequest)

   496 //

   497 // Get the long name associated with a short file name

   498 //

   499 	{

   500 	__PRINT(_L("TFsGetLongName::DoRequestL(CFsRequest* aRequest)"));

   501 	TFileName longName;

   502 	TInt r=aRequest->Drive()->GetLongName(aRequest->Src().FullName().Mid(2),longName);

   503 	if (r!=KErrNone)

   504 		return(r);

   505 	aRequest->WriteL(KMsgPtr1,longName);

   506 	return(KErrNone);

   507 	}

   508 

   509 TInt TFsGetLongName::Initialise(CFsRequest* aRequest)

   510 //

   511 //

   512 //

   513 	{

   514 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());	

   515 	if (r!=KErrNone)

   516 		return(r);

   517 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysGetLongName,&KCapFsPriGetLongName, __PLATSEC_DIAGNOSTIC_STRING("Get Long Name"));	

   518 	return(r);

   519 	}

   520 

   521 

   522 TInt TFsIsFileInRom::DoRequestL(CFsRequest* aRequest)

   523 //

   524 // Return the address of the file

   525 //

   526 	{

   527 

   528 	__PRINT(_L("DoIsFileInRom"));

   529 	TUint8* fileStart;

   530 	TInt r=aRequest->Drive()->IsFileInRom(aRequest->Src().FullName().Mid(2),fileStart);

   531 	if (r!=KErrNone)

   532 		return(r);

   533 	TPckgBuf<TUint8*> buf(fileStart);

   534 	aRequest->WriteL(KMsgPtr1,buf);

   535 	return(KErrNone);

   536 	}

   537 

   538 TInt TFsIsFileInRom::Initialise(CFsRequest* aRequest)

   539 //

   540 //	

   541 //

   542 	{	

   543 	TInt r=ParseNoWildSubstCheckPathPtr0(aRequest,aRequest->Src());	

   544 	if (r!=KErrNone)

   545 		return (r);

   546 	r=PathCheck(aRequest,aRequest->Src().FullName().Mid(2),&KCapFsSysIsFileInRom,&KCapFsPriIsFileInRom, __PLATSEC_DIAGNOSTIC_STRING("Is File In Rom"));	

   547 	return(r);

   548 	}

   549 

   550 

   551 TInt TFsIsValidName::Initialise(CFsRequest* /*aRequest*/)

   552 //

   553 //	

   554 //

   555 	{

   556 	return(KErrNone);

   557 	}

   558 

   559 

   560 TInt TFsIsValidName::DoRequestL(CFsRequest* aRequest)

   561 //

   562 //	Determine whether the name is valid

   563 //	If returnInvalidChar flag is set - determine the invalid character and

   564 //	return it to the client

   565 //  If TNameValidParam is specified determine the position of the invalid character

   566 //  and return it to the client.

   567 	{

   568 	__PRINT(_L("DoFsIsValidName"));

   569 

   570 	TParse parse; 

   571 	const TAny* pParam = aRequest->Message().Ptr3();

   572 	if(pParam == NULL)

   573 		{

   574 		//	We need to call DoFsIsValidName	to determine what the invalid character is

   575 		TInt r=ParseSubstPtr0(aRequest,parse);

   576 		if ((r!=KErrNone) && (r!=KErrBadName))

   577 			return(r);

   578 		TBool retInvChar;

   579 		TPckg<TBool> bPckg(retInvChar);

   580 		aRequest->ReadL(KMsgPtr1,bPckg);

   581 		if (!retInvChar)

   582 			//	Determine whether the name is invalid but don't bother finding out which

   583 			//	character (if any) is illegal

   584 			{  

   585 			TInt r=ParseNoWildSubstCheckPtr0(aRequest,parse);	

   586 			if ((r!=KErrNone) || IsIllegalFullName(parse.FullName().Mid(2)))

   587 				return(KErrBadName);

   588 			return(KErrNone);

   589 			}

   590 		else	

   591 			{

   592 			//	Determine whether the name is invalid and return any offending character 	

   593 			TText badChar=' ';

   594 			TPckg<TText> pText(badChar);

   595 				

   596 			TInt r=ParseSubstPtr0(aRequest,parse);

   597 			if (r==KErrBadName)	//	Name is > 256 characters or an illegal character 

   598 				{				//	was encountered before path was completely parsed

   599 				TFileName name;

   600 				aRequest->ReadL(KMsgPtr0,name);

   601 				TNameChecker checkName(name);

   602 				checkName.IsIllegalChar(badChar);								

   603 				aRequest->WriteL(KMsgPtr2,pText);

   604 				return(KErrBadName);

   605 				}

   606 			//	Weed out invalid * or ? in the filename (or no name and extension at all)

   607 			r=ParseNoWildSubstCheckPtr0(aRequest,parse);	

   608 			if (r==KErrBadName)

   609 				{

   610 				if (parse.IsKMatchAny())

   611 					badChar=KMatchAny;		//	Offending character is '*'

   612 				else if (parse.IsKMatchOne())

   613 					badChar=KMatchOne;		//	Offending character is '?'

   614 				aRequest->WriteL(KMsgPtr2,pText);

   615 				return(KErrBadName);

   616 				}

   617 

   618 			//	Weed out any other outstanding illegal characters in filename or path	

   619 			TNameChecker checkName(parse.FullName().Mid(2));

   620 			if (checkName.IsIllegalName(badChar))

   621 				{

   622 				aRequest->WriteL(KMsgPtr2,pText);

   623 				return(KErrBadName);

   624 				}

   625 			else					//	No invalid characters in name

   626 				{					//	Set badChar to '\0'		

   627 				badChar='\0';		

   628 				aRequest->WriteL(KMsgPtr2,pText);

   629 				return(KErrNone);	

   630 				}

   631 			}

   632 		}

   633 	else //new API implementation

   634 		{

   635 		RFs::TNameValidParam param;

   636 		TPckg<RFs::TNameValidParam> paramPckg(param);

   637 		aRequest->ReadL(KMsgPtr3,paramPckg);

   638 		TUint nameLen=(TUint)aRequest->GetDesLength(KMsgPtr0);

   639 		if(nameLen == 0)// a name must be specified

   640 			{

   641 			param.iError = RFs::TNameValidParam::ErrBadName;

   642 			param.iInvalidCharPos = 0;

   643 			aRequest->WriteL(KMsgPtr3,paramPckg);

   644 			return KErrBadName;

   645 			}

   646 		if(param.iUseSessionPath)

   647 			nameLen += aRequest->Session()->Path().Length();

   648 		if(nameLen > (TUint)KMaxFileName)

   649 			{

   650 			param.iError = RFs::TNameValidParam::ErrNameTooLong;

   651 			param.iInvalidCharPos = 0;

   652 			aRequest->WriteL(KMsgPtr3,paramPckg);

   653 		   	return KErrBadName;

   654 			}

   655 		TFileName fileName;

   656 		TInt driveLength = 2;

   657 		TText badChar;

   658 		TRAPD(r, aRequest->ReadL(KMsgPtr0,fileName));

   659 		if(KErrNone == r)

   660 			{

   661 			r=ParseSubstPtr0(aRequest,parse,param.iUseSessionPath);

   662 			if (KErrBadName  == r) 	//	An illegal character 

   663 				{					//	was encountered before path was completely parsed

   664 				TNameChecker checkName(fileName);

   665 				if(checkName.IsIllegalChar(badChar))

   666 					{

   667 					param.iError = RFs::TNameValidParam::ErrBadCharacter;

   668 					param.iInvalidCharPos = fileName.LocateReverse(badChar)+1;

   669 					aRequest->WriteL(KMsgPtr3,paramPckg);

   670 					return KErrBadName;

   671 					}

   672 				param.iError = RFs::TNameValidParam::ErrBadName;

   673 				param.iInvalidCharPos = 0;

   674 				aRequest->WriteL(KMsgPtr3,paramPckg);

   675 				return KErrBadName;

   676 				}

   677 			//	Weed out invalid * or ? in the filename

   678 			r=ParseNoWildSubstPtr0(aRequest,parse,param.iUseSessionPath);

   679 			if(KErrBadName == r)

   680 				{

   681 				if(parse.IsWild())	

   682 					{

   683 					if (parse.IsKMatchAny())

   684 						{// offending character is '*'

   685 						param.iError = RFs::TNameValidParam::ErrBadCharacter;

   686 						param.iInvalidCharPos = fileName.LocateReverse(KMatchAny)+1;

   687 						aRequest->WriteL(KMsgPtr3,paramPckg);

   688 						return KErrBadName;

   689 						}

   690 					else if (parse.IsKMatchOne())

   691 						{//offending character is '?'

   692 						param.iError = RFs::TNameValidParam::ErrBadCharacter;

   693 						param.iInvalidCharPos = fileName.LocateReverse(KMatchOne)+1;

   694 						aRequest->WriteL(KMsgPtr3,paramPckg);

   695 			    		return KErrBadName;

   696 						}

   697 					}

   698 				param.iError = RFs::TNameValidParam::ErrBadName;

   699 				param.iInvalidCharPos = 0;

   700 				aRequest->WriteL(KMsgPtr3,paramPckg);

   701 				return KErrBadName;

   702 				}

   703 			if(!param.iUseSessionPath && !parse.DrivePresent())

   704 				driveLength = 0;

   705 			//	Weed out any other outstanding illegal characters in filename or path

   706 			TNameChecker checkName(parse.FullName().Mid(driveLength));

   707 			badChar = ' ';	

   708 			if (checkName.IsIllegalName(badChar))

   709 				{

   710 				if(badChar == ' ')

   711 					{

   712 					param.iError = RFs::TNameValidParam::ErrBadName;

   713 					param.iInvalidCharPos = 0;

   714 					aRequest->WriteL(KMsgPtr3,paramPckg);

   715 					return KErrBadName;

   716 					}

   717 				else

   718 					{

   719 					if(badChar == '.')

   720 						{

   721 						param.iError = RFs::TNameValidParam::ErrBadCharacter;

   722 						param.iInvalidCharPos = fileName.Locate(badChar)+1;

   723 						}

   724 					else

   725 						{

   726 						param.iError = RFs::TNameValidParam::ErrBadCharacter;

   727 						param.iInvalidCharPos = fileName.LocateReverse(badChar)+1;

   728 						}

   729 					aRequest->WriteL(KMsgPtr3,paramPckg);

   730 					return KErrBadName;

   731 					}

   732 				}

   733 			else					//	No invalid characters in name

   734 				{

   735 				param.iError = RFs::TNameValidParam::ErrNone;

   736 				param.iInvalidCharPos = 0;

   737 				aRequest->WriteL(KMsgPtr3,paramPckg);

   738 				return KErrNone;		

   739 				}

   740 			}

   741 		else

   742 			return r;//read is not successful.

   743 		}

   744 	}

   745 				

   746 	

   747 TInt TFsLockDrive::DoRequestL(CFsRequest* aRequest)

   748 //

   749 // Lock media device

   750 //

   751 	{

   752 	__PRINT(_L("TFsLockDrive::DoRequestL(CFsRequest* aRequest)"));	

   753 	TMediaPassword oldPw;

   754 	TMediaPassword newPw;

   755 	aRequest->ReadL(KMsgPtr1,oldPw);

   756 	aRequest->ReadL(KMsgPtr2,newPw);

   757 	return(aRequest->Drive()->LockDevice(oldPw,newPw,aRequest->Message().Int3()));

   758 	}

   759 

   760 

   761 TInt TFsLockDrive::Initialise(CFsRequest* aRequest)

   762 //

   763 // 

   764 //

   765 	{

   766 	if (!KCapFsLockDrive.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Lock Drive")))

   767 		return KErrPermissionDenied;

   768 	TInt r=ValidateDriveDoSubst(aRequest->Message().Int0(),aRequest);

   769 	return(r);

   770 	}

   771 

   772 TInt TFsUnlockDrive::DoRequestL(CFsRequest* aRequest)

   773 //

   774 // Unlock media device

   775 //

   776 	{

   777 	__PRINT(_L("TFsUnlockDrive::DoRequestL(CFsRequest* aRequest)"));

   778 	TMediaPassword pW;

   779 	aRequest->ReadL(KMsgPtr1,pW);

   780 	return(aRequest->Drive()->UnlockDevice(pW,aRequest->Message().Int2()));

   781 	}

   782 

   783 

   784 TInt TFsUnlockDrive::Initialise(CFsRequest* aRequest)

   785 //

   786 // 

   787 //

   788 	{

   789 	if (!KCapFsUnlockDrive.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Unlock Drive")))

   790 		return KErrPermissionDenied;

   791 	TInt r=ValidateDriveDoSubst(aRequest->Message().Int0(),aRequest);

   792 	return(r);

   793 	}

   794 

   795 TInt TFsClearPassword::DoRequestL(CFsRequest* aRequest)

   796 //

   797 // Clears password of media device

   798 //

   799 	{

   800 	__PRINT(_L("TFsClearPassowrd::DoRequestL(CFsRequest* aRequest)"));	

   801 	TMediaPassword pW;

   802 	aRequest->ReadL(KMsgPtr1,pW);

   803 	return(aRequest->Drive()->ClearDevicePassword(pW));

   804 	}

   805 

   806 

   807 TInt TFsClearPassword::Initialise(CFsRequest* aRequest)

   808 //

   809 //

   810 //

   811 	{

   812 	if (!KCapFsClearPassword.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Clear Password")))

   813 		return KErrPermissionDenied;

   814 	return ValidateDriveDoSubst(aRequest->Message().Int0(),aRequest);

   815 	}

   816 

   817 TInt TFsErasePassword::DoRequestL(CFsRequest* aRequest)

   818 //

   819 // Erase the password from the media device

   820 //

   821 	{

   822 	__PRINT(_L("TFsErasePassword::DoRequestL(CFsRequest* aRequest)"));

   823 	return(aRequest->Drive()->EraseDevicePassword());

   824 	}

   825 

   826 

   827 TInt TFsErasePassword::Initialise(CFsRequest* aRequest)

   828 //

   829 // 

   830 //

   831 	{

   832 	if (!KCapFsErasePassword.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Erase Password")))

   833 		return KErrPermissionDenied;

   834 	return ValidateDriveDoSubst(aRequest->Message().Int0(),aRequest);

   835 

   836 	}

   837 

   838 

   839 TInt TFsSessionToPrivate::DoRequestL(CFsRequest* aRequest)

   840 //

   841 //	Set session path to the private directory (does not need to exist)

   842 //

   843 	{

   844 	TBuf<30> pPath;	

   845 	pPath=_L("?:\\Private\\");	

   846 	pPath[0]= (TText)('A'+ aRequest->Message().Int0());

   847 	pPath.AppendNumFixedWidth(aRequest->Message().SecureId().iId, EHex, 8);

   848 	pPath += KSlash;

   849 	HBufC* pP = pPath.Alloc();

   850 	if (pP==NULL)

   851 		return KErrNoMemory;

   852 	delete &aRequest->Session()->Path();

   853 	aRequest->Session()->SetPath(pP);

   854 	return KErrNone;

   855 	}

   856 

   857 	

   858 TInt TFsSessionToPrivate::Initialise(CFsRequest* /*aRequest*/) 

   859 //

   860 //	standard initialisation

   861 //

   862 	{

   863 	return KErrNone;

   864 	}

   865 

   866 TInt TFsPrivatePath::DoRequestL(CFsRequest* aRequest)

   867 //

   868 //	may be able to do this user side !!!

   869 //

   870 	{

   871 	TSecureId appUID = aRequest->Message().SecureId();	

   872 	TFileName pPath(KPrivateSlash);	

   873 	pPath.AppendNumFixedWidth(appUID.iId, EHex, 8);

   874 	pPath += KSlash;

   875 	aRequest->WriteL(KMsgPtr0,pPath);

   876 

   877 	return KErrNone;	

   878 

   879 	}

   880 

   881 TInt TFsPrivatePath::Initialise(CFsRequest* /*aRequest*/) 

   882 //

   883 //

   884 //

   885 	{

   886 	return KErrNone;

   887 	}

   888 

   889 

   890 TInt TFsCreatePrivatePath::DoRequestL(CFsRequest* aRequest)

   891 //

   892 //	create the private path unless it already exists

   893 //

   894 	{

   895     TInt ret = CheckDiskSpace(0, aRequest);

   896     if(ret != KErrNone)

   897         return ret;

   898 

   899 	TBuf<30> pPath(KPrivate);	

   900 	pPath += KSlash;

   901 	pPath.AppendNumFixedWidth(aRequest->Message().SecureId().iId, EHex, 8);

   902 	TEntry e;

   903 	ret=aRequest->Drive()->CheckMount();

   904 	if (ret!=KErrNone)

   905 		return ret;

   906 

   907 	//no point going mad on sanity check we know it's not root or a bad name

   908 	ret =aRequest->Drive()->Entry(KPrivate(),e);

   909 	if(ret != KErrNone)

   910 		{

   911 		if(ret==KErrNotFound)

   912 			{

   913 			ret = aRequest->Drive()->MkDir(KPrivate());	

   914 			if(ret != KErrNone)

   915 				return ret;

   916 			}

   917 		else

   918 			return ret;

   919 		}

   920 	ret =aRequest->Drive()->Entry(pPath,e);

   921 	if(ret==KErrPathNotFound || ret==KErrNotFound || !e.IsDir())	

   922 		{	

   923 		if((ret=aRequest->Drive()->MkDir(pPath ))!=KErrNone)

   924 			return ret;			

   925 		}

   926 	return ret;

   927 	}

   928 

   929 

   930 TInt TFsCreatePrivatePath::Initialise(CFsRequest* aRequest) 

   931 //

   932 //

   933 //

   934 	{

   935 	TInt r=ValidateDriveDoSubst(aRequest->Message().Int0(),aRequest);

   936 	return(r);

   937 	}

   938 

   939 TInt TFsFinaliseDrive::DoRequestL(CFsRequest* aRequest)

   940 	{

   941 	__PRINT(_L("TFsFinaliseDrive::DoRequestL"));

   942 

   943 	TInt r=aRequest->Drive()->CheckMount();

   944 	if (r!=KErrNone)

   945 		return r;

   946 

   947     const TInt nMode = aRequest->Message().Int1(); //-- finalisation mode, see RFs::TFinaliseDrvMode

   948 

   949 	return aRequest->Drive()->FinaliseMount(nMode);

   950 	}

   951 

   952 /**

   953     Finalise the drive

   954 */

   955 TInt TFsFinaliseDrive::Initialise(CFsRequest* aRequest)

   956 	{

   957 	if (!KCapFsFinaliseDrive.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Finalise Drive")))

   958 		return KErrPermissionDenied;

   959 

   960 	const TInt nDrv  = aRequest->Message().Int0(); //-- the drive number to be finalised

   961 

   962     TInt r = ValidateDriveDoSubst(nDrv, aRequest);

   963     if (r != KErrNone)

   964         return r;

   965 

   966 	TDrive& d = TheDrives[nDrv];

   967     if(!d.GetFSys())

   968 	    return KErrNotFound; //-- something wrong with this drive 

   969 

   970     

   971     //-- check the drive attributes

   972     const TUint KDrvAttExclude = KDriveAttRom | KDriveAttRedirected; //-- the drive attributes to exlcude from the finalisation

   973     if(d.Att() & KDrvAttExclude) 

   974         return KErrNotSupported; //-- finalisation isn't supported for these drives

   975 

   976 	return KErrNone;

   977 	}

   978 

   979 /**  Set System Drive (used by GetSystemDrive and SystemDriveChar) */

   980 TInt TFsSetSystemDrive::DoRequestL(CFsRequest* aRequest)

   981 	{

   982     __PRINT(_L("TFsSetSystemDrive::DoRequestL()"));

   983     TInt drive;

   984 	TInt err = RProperty::Get(TSecureId(KFileServerUidValue), KSystemDriveKey, drive);

   985 	if(err == KErrNone)

   986 		{

   987 		__PRINT1(_L("TFsSetSystemDrive::DoRequestL() drv:%d is already defined as system!"), drive);

   988         return KErrAlreadyExists;

   989 		}

   990 	

   991     drive = aRequest->Message().Int0();    

   992 	__ASSERT_ALWAYS(drive>=EDriveA && drive<=EDriveZ, Fault(EInvalidDrive));

   993 

   994 	//Calculates the total number of valid drives present and set RAM as a

   995 	//system drive only if one valid drive is present.

   996 	TInt total_drive = 0;

   997 	for (TInt driveNumber=0; driveNumber<KMaxDrives; driveNumber++)

   998 		{

   999 		if(TheDrives[driveNumber].GetFSys() != NULL)  // is a valid drive

  1000 			total_drive++;

  1001 		}

  1002 	aRequest->SetDrive(&TheDrives[drive]);

  1003 	FsThreadManager::LockDrive(aRequest->DriveNumber());

  1004 	TDriveInfo info;

  1005 	aRequest->Drive()->DriveInfo(info);

  1006 	FsThreadManager::UnlockDrive(aRequest->DriveNumber());

  1007 

  1008 	__PRINT1(_L("TFsSetSystemDrive::DoRequestL() total drives:%d"), total_drive);

  1009     __PRINT3(_L("TFsSetSystemDrive::DoRequestL() setting sys:%d, Media:0x%x, DrvAtt:0x%x"), drive, info.iType, info.iDriveAtt);

  1010 

  1011     //-- 1. check media type of the system drive.

  1012     __ASSERT_ALWAYS(info.iType==EMediaHardDisk || info.iType==EMediaFlash || info.iType==EMediaNANDFlash || info.iType==EMediaRam, Fault(EInvalidDrive));

  1013     

  1014     if(info.iType == EMediaRam)

  1015 		{//-- It is not nice to use RAM drive as a system one because it might non be persistent, but acceptable though. 

  1016          __PRINT(_L("TFsSetSystemDrive::DoRequestL() WARNING: RAM drive is set as system drive!"));

  1017         }

  1018    

  1019     //-- 2. check drive attributes for the system drive

  1020     const TUint requiredDrvAtt   = KDriveAttLocal|KDriveAttInternal;

  1021     const TUint prohibitedDrvAtt = KDriveAttRom|KDriveAttRedirected|KDriveAttSubsted|KDriveAttRemovable;

  1022 

  1023     ASSERT(!(prohibitedDrvAtt & requiredDrvAtt));

  1024     if( !(info.iDriveAtt & requiredDrvAtt) || (info.iDriveAtt & prohibitedDrvAtt))

  1025         {

  1026         __PRINT2(_L("TFsSetSystemDrive::DoRequestL(), Wrong Drive attributes! req:0x%x, disallowed:0x%x"), requiredDrvAtt, prohibitedDrvAtt);

  1027         Fault(EInvalidDrive);

  1028         }

  1029 

  1030 

  1031 	RProcess p;

  1032 	TSecurityPolicy policy(p.SecureId());

  1033 	err = RProperty::Define(TSecureId(KFileServerUidValue), KSystemDriveKey, RProperty::EInt, TSecurityPolicy::EAlwaysPass, policy);

  1034 	if(err == KErrNone)

  1035 		{

  1036 		err = RProperty::Set(TSecureId(KFileServerUidValue), KSystemDriveKey, drive);

  1037 		}

  1038 	__ASSERT_ALWAYS(err==KErrNone, User::Invariant());

  1039     

  1040     return err;

  1041 	}

  1042 	

  1043 /** Checks if setting System Drive is allowed */

  1044 TInt TFsSetSystemDrive::Initialise(CFsRequest* aRequest)

  1045 	{

  1046 	if (!KCapFsSetSystemDrive.CheckPolicy(aRequest->Message(), __PLATSEC_DIAGNOSTIC_STRING("Set System Drive")))

  1047 		{

  1048 		return KErrPermissionDenied;

  1049 		}

  1050     return KErrNone;

  1051 	}
Symaptic