/*++ Copyright (c) 1989 Microsoft Corporation Module Name: smbattr.c Abstract: This module contains routines for processing the following SMBs: Query Information Set Information Query Information2 Set Information2 Query Path Information Set Path Information Query File Information Set File Information Author: David Treadwell (davidtr) 27-Dec-1989 Chuck Lenzmeier (chuckl) Revision History: --*/ #include "precomp.h" #include "smbattr.tmh" #pragma hdrstop #define BugCheckFileId SRV_FILE_SMBATTR #pragma pack(1) typedef struct _FILESTATUS { SMB_DATE CreationDate; SMB_TIME CreationTime; SMB_DATE LastAccessDate; SMB_TIME LastAccessTime; SMB_DATE LastWriteDate; SMB_TIME LastWriteTime; _ULONG( DataSize ); _ULONG( AllocationSize ); _USHORT( Attributes ); _ULONG( EaSize ); // this field intentionally misaligned! } FILESTATUS, *PFILESTATUS; #pragma pack() STATIC ULONG QueryFileInformation[] = { SMB_QUERY_FILE_BASIC_INFO,// Base level FileBasicInformation, // Mapping for base level FileStandardInformation, FileEaInformation, FileNameInformation, FileAllocationInformation, FileEndOfFileInformation, 0, // FileAllInformation FileAlternateNameInformation, FileStreamInformation, 0, //Used to be FileOleAllInformation -- OBSOLETE FileCompressionInformation }; STATIC ULONG QueryFileInformationSize[] = { SMB_QUERY_FILE_BASIC_INFO,// Base level FileBasicInformation, // Mapping for base level sizeof( FILE_BASIC_INFORMATION), sizeof( FILE_STANDARD_INFORMATION ), sizeof( FILE_EA_INFORMATION ), sizeof( FILE_NAME_INFORMATION ), sizeof( FILE_ALLOCATION_INFORMATION ), sizeof( FILE_END_OF_FILE_INFORMATION ), sizeof( FILE_ALL_INFORMATION ), sizeof( FILE_NAME_INFORMATION ), sizeof( FILE_STREAM_INFORMATION ), 0, // Used to be sizeof( FILE_OLE_ALL_INFORMATION ) sizeof( FILE_COMPRESSION_INFORMATION ) }; STATIC ULONG SetFileInformation[] = { SMB_SET_FILE_BASIC_INFO, // Base level FileBasicInformation, // Mapping for base level FileDispositionInformation, FileAllocationInformation, FileEndOfFileInformation }; STATIC ULONG SetFileInformationSize[] = { SMB_SET_FILE_BASIC_INFO, // Base level FileBasicInformation, // Mapping for base level sizeof( FILE_BASIC_INFORMATION ), sizeof( FILE_DISPOSITION_INFORMATION ), sizeof( FILE_ALLOCATION_INFORMATION ), sizeof( FILE_END_OF_FILE_INFORMATION ) }; STATIC NTSTATUS QueryPathOrFileInformation ( IN PWORK_CONTEXT WorkContext, IN PTRANSACTION Transaction, IN USHORT InformationLevel, IN HANDLE FileHandle, OUT PRESP_QUERY_PATH_INFORMATION Response ); STATIC NTSTATUS SetPathOrFileInformation ( IN PWORK_CONTEXT WorkContext, IN PTRANSACTION Transaction, IN USHORT InformationLevel, IN HANDLE FileHandle, OUT PRESP_SET_PATH_INFORMATION Response ); SMB_TRANS_STATUS GenerateQueryPathInfoResponse ( IN PWORK_CONTEXT WorkContext, IN NTSTATUS OpenStatus ); #ifdef ALLOC_PRAGMA #pragma alloc_text( PAGE, SrvSmbQueryInformation ) #pragma alloc_text( PAGE, SrvSmbSetInformation ) #pragma alloc_text( PAGE, SrvSmbQueryInformation2 ) #pragma alloc_text( PAGE, SrvSmbSetInformation2 ) #pragma alloc_text( PAGE, QueryPathOrFileInformation ) #pragma alloc_text( PAGE, SrvSmbQueryFileInformation ) #pragma alloc_text( PAGE, SrvSmbQueryPathInformation ) #pragma alloc_text( PAGE, GenerateQueryPathInfoResponse ) #pragma alloc_text( PAGE, SetPathOrFileInformation ) #pragma alloc_text( PAGE, SrvSmbSetFileInformation ) #pragma alloc_text( PAGE, SrvSmbSetPathInformation ) #endif SMB_PROCESSOR_RETURN_TYPE SrvSmbQueryInformation ( SMB_PROCESSOR_PARAMETERS ) /*++ Routine Description: Processes the QueryInformation SMB. Arguments: SMB_PROCESSOR_PARAMETERS - See smbtypes.h for a description of the parameters to SMB processor routines. Return Value: SMB_PROCESSOR_RETURN_TYPE - See smbtypes.h --*/ { PREQ_QUERY_INFORMATION request; PRESP_QUERY_INFORMATION response; NTSTATUS status = STATUS_SUCCESS; SMB_STATUS SmbStatus = SmbStatusInProgress; PSESSION session; PTREE_CONNECT treeConnect; OBJECT_ATTRIBUTES objectAttributes; UNICODE_STRING objectName; IO_STATUS_BLOCK ioStatusBlock; BOOLEAN isUnicode; FILE_NETWORK_OPEN_INFORMATION fileInformation; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_QUERY_INFORMATION; SrvWmiStartContext(WorkContext); IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "QueryInformation request header at 0x%p, response header at 0x%p\n", WorkContext->RequestHeader, WorkContext->ResponseHeader )); KdPrint(( "QueryInformation request parameters at 0x%p, response parameters at 0x%p\n", WorkContext->RequestParameters, WorkContext->ResponseParameters )); } request = (PREQ_QUERY_INFORMATION)WorkContext->RequestParameters; response = (PRESP_QUERY_INFORMATION)WorkContext->ResponseParameters; // // If a session block has not already been assigned to the current // work context, verify the UID. If verified, the address of the // session block corresponding to this user is stored in the WorkContext // block and the session block is referenced. // // Find tree connect corresponding to given TID if a tree connect // pointer has not already been put in the WorkContext block by an // AndX command. // status = SrvVerifyUidAndTid( WorkContext, &session, &treeConnect, ShareTypeDisk ); if ( !NT_SUCCESS(status) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryInformation: Invalid UID or TID\n" )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // If the session has expired, return that info // if( session->IsSessionExpired ) { status = SESSION_EXPIRED_STATUS_CODE; SmbStatus = SmbStatusSendResponse; SrvSetSmbError( WorkContext, status ); goto Cleanup; } // // Get the path name of the file to open relative to the share. // isUnicode = SMB_IS_UNICODE( WorkContext ); status = SrvCanonicalizePathName( WorkContext, treeConnect->Share, NULL, (PVOID)(request->Buffer + 1), END_OF_REQUEST_SMB( WorkContext ), TRUE, isUnicode, &objectName ); if( !NT_SUCCESS( status ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryInformation: bad path name: %s\n", (PSZ)request->Buffer + 1 )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Initialize the object attributes structure. // SrvInitializeObjectAttributes_U( &objectAttributes, &objectName, (WorkContext->RequestHeader->Flags & SMB_FLAGS_CASE_INSENSITIVE || session->UsingUppercasePaths) ? OBJ_CASE_INSENSITIVE : 0L, NULL, NULL ); // // "Be the client" for access checking // status = IMPERSONATE( WorkContext ); if( NT_SUCCESS( status ) ) { status = SrvGetShareRootHandle( treeConnect->Share ); if( NT_SUCCESS( status ) ) { // // The file name is always relative to the share root // status = SrvSnapGetRootHandle( WorkContext, &objectAttributes.RootDirectory ); if( !NT_SUCCESS( status ) ) { goto SnapError; } // // Get the information // if( IoFastQueryNetworkAttributes( &objectAttributes, FILE_READ_ATTRIBUTES, 0, &ioStatusBlock, &fileInformation ) == FALSE ) { SrvLogServiceFailure( SRV_SVC_IO_FAST_QUERY_NW_ATTRS, 0 ); ioStatusBlock.Status = STATUS_OBJECT_PATH_NOT_FOUND; } status = ioStatusBlock.Status; // // If the media was changed and we can come up with a new share root handle, // then we should retry the operation // if( SrvRetryDueToDismount( treeConnect->Share, status ) ) { status = SrvSnapGetRootHandle( WorkContext, &objectAttributes.RootDirectory ); if( !NT_SUCCESS( status ) ) { goto SnapError; } if( IoFastQueryNetworkAttributes( &objectAttributes, FILE_READ_ATTRIBUTES, 0, &ioStatusBlock, &fileInformation ) == FALSE ) { SrvLogServiceFailure( SRV_SVC_IO_FAST_QUERY_NW_ATTRS, 0 ); ioStatusBlock.Status = STATUS_OBJECT_PATH_NOT_FOUND; } status = ioStatusBlock.Status; } SnapError: SrvReleaseShareRootHandle( treeConnect->Share ); } REVERT(); } if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } // // Build the response SMB. // if ( !NT_SUCCESS(status) ) { if ( status == STATUS_ACCESS_DENIED ) { SrvStatistics.AccessPermissionErrors++; } IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryInformation: " "SrvQueryInformationFileAbbreviated failed: %X\n", status )); } SrvSetSmbError( WorkContext, status ); } else { USHORT smbFileAttributes; LARGE_INTEGER newTime; response->WordCount = 10; SRV_NT_ATTRIBUTES_TO_SMB( fileInformation.FileAttributes, fileInformation.FileAttributes & FILE_ATTRIBUTE_DIRECTORY, &smbFileAttributes ); SmbPutUshort( &response->FileAttributes, smbFileAttributes ); // // Convert the time to that which the SMB protocol needs // ExSystemTimeToLocalTime( &fileInformation.LastWriteTime, &newTime ); newTime.QuadPart += AlmostTwoSeconds; if ( !RtlTimeToSecondsSince1970( &newTime, &fileInformation.LastWriteTime.LowPart ) ) { fileInformation.LastWriteTime.LowPart = 0; } // // Round to 2 seconds // fileInformation.LastWriteTime.LowPart &= ~1; SmbPutUlong( &response->LastWriteTimeInSeconds, fileInformation.LastWriteTime.LowPart ); SmbPutUlong( &response->FileSize, fileInformation.EndOfFile.LowPart ); RtlZeroMemory( (PVOID)&response->Reserved[0], sizeof(response->Reserved) ); SmbPutUshort( &response->ByteCount, 0 ); WorkContext->ResponseParameters = NEXT_LOCATION( response, RESP_QUERY_INFORMATION, 0 ); } SmbStatus = SmbStatusSendResponse; Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbQueryInformation SMB_PROCESSOR_RETURN_TYPE SrvSmbSetInformation ( SMB_PROCESSOR_PARAMETERS ) /*++ Routine Description: Processes the SetInformation SMB. Arguments: SMB_PROCESSOR_PARAMETERS - See smbtypes.h for a description of the parameters to SMB processor routines. Return Value: SMB_PROCESSOR_RETURN_TYPE - See smbtypes.h --*/ { PREQ_SET_INFORMATION request; PRESP_SET_INFORMATION response; NTSTATUS status = STATUS_SUCCESS; SMB_STATUS SmbStatus = SmbStatusInProgress; PSESSION session; PTREE_CONNECT treeConnect; HANDLE fileHandle; OBJECT_ATTRIBUTES objectAttributes; UNICODE_STRING objectName; IO_STATUS_BLOCK ioStatusBlock; BOOLEAN isUnicode; FILE_BASIC_INFORMATION fileBasicInformation; ULONG lastWriteTimeInSeconds; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_SET_INFORMATION; SrvWmiStartContext(WorkContext); IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "SetInformation request header at 0x%p, response header at 0x%p\n", WorkContext->RequestHeader, WorkContext->ResponseHeader )); KdPrint(( "SetInformation request parameters at 0x%p, response parameters at 0x%p\n", WorkContext->RequestParameters, WorkContext->ResponseParameters )); } request = (PREQ_SET_INFORMATION)WorkContext->RequestParameters; response = (PRESP_SET_INFORMATION)WorkContext->ResponseParameters; // // If a session block has not already been assigned to the current // work context, verify the UID. If verified, the address of the // session block corresponding to this user is stored in the WorkContext // block and the session block is referenced. // // Find tree connect corresponding to given TID if a tree connect // pointer has not already been put in the WorkContext block by an // AndX command. // status = SrvVerifyUidAndTid( WorkContext, &session, &treeConnect, ShareTypeDisk ); if ( !NT_SUCCESS(status) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetInformation: Invalid UID and TID\n" )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // If the session has expired, return that info // if( session->IsSessionExpired ) { status = SESSION_EXPIRED_STATUS_CODE; SmbStatus = SmbStatusSendResponse; SrvSetSmbError( WorkContext, status ); goto Cleanup; } if ( treeConnect == NULL ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetInformation: Invalid TID: 0x%lx\n", SmbGetAlignedUshort( &WorkContext->RequestHeader->Tid ) )); } SrvSetSmbError( WorkContext, STATUS_SMB_BAD_TID ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Concatenate PathName from the share block and PathName from the // incoming SMB to generate the full path name to the file. // isUnicode = SMB_IS_UNICODE( WorkContext ); status = SrvCanonicalizePathName( WorkContext, treeConnect->Share, NULL, (PVOID)(request->Buffer + 1), END_OF_REQUEST_SMB( WorkContext ), TRUE, isUnicode, &objectName ); if( !NT_SUCCESS( status ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetInformation: bad path name: %s\n", (PSZ)request->Buffer + 1 )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // If the client is trying to delete the root of the share, reject // the request. // if ( objectName.Length < sizeof(WCHAR) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetInformation: attempting to set info on " "share root\n" )); } if (!SMB_IS_UNICODE( WorkContext )) { RtlFreeUnicodeString( &objectName ); } SrvSetSmbError( WorkContext, STATUS_ACCESS_DENIED ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Initialize the object attributes structure. // SrvInitializeObjectAttributes_U( &objectAttributes, &objectName, (WorkContext->RequestHeader->Flags & SMB_FLAGS_CASE_INSENSITIVE || session->UsingUppercasePaths) ? OBJ_CASE_INSENSITIVE : 0L, NULL, NULL ); IF_SMB_DEBUG(QUERY_SET2) KdPrint(( "Opening file %wZ\n", &objectName )); // // Open the file--must be opened in order to have a handle to pass // to NtSetInformationFile. We will close it after setting the // necessary information. // INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpenAttempts ); INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpensForPathOperations ); // // *** FILE_WRITE_ATTRIBUTES does not cause oplock breaks! // status = SrvIoCreateFile( WorkContext, &fileHandle, FILE_WRITE_ATTRIBUTES, // DesiredAccess &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition FILE_OPEN_REPARSE_POINT, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options treeConnect->Share ); if( status == STATUS_INVALID_PARAMETER ) { status = SrvIoCreateFile( WorkContext, &fileHandle, FILE_WRITE_ATTRIBUTES, // DesiredAccess &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition 0, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options treeConnect->Share ); } ASSERT( status != STATUS_OPLOCK_BREAK_IN_PROGRESS ); if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } if ( NT_SUCCESS(status) ) { SRVDBG_CLAIM_HANDLE( fileHandle, "FIL", 20, 0 ); // // Ensure this client's RFCB cache is empty. This covers the case // where a client opened a file for writing, closed it, set the // attributes to readonly, and then tried to reopen the file for // writing. This sequence should fail, but it will succeed if the // file was in the RFCB cache. // SrvCloseCachedRfcbsOnConnection( WorkContext->Connection ); } else { if ( status == STATUS_ACCESS_DENIED ) { SrvStatistics.AccessPermissionErrors++; } IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbSetInformation: SrvIoCreateFile " "failed: %X\n", status )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } IF_SMB_DEBUG(QUERY_SET2) { KdPrint(( "SrvIoCreateFile succeeded, handle = 0x%p\n", fileHandle )); } // // Set fields of fileBasicInformation to pass to NtSetInformationFile. // Note that we zero the creation, last access, and change times so // that they are not actually changed. // RtlZeroMemory( &fileBasicInformation, sizeof(fileBasicInformation) ); lastWriteTimeInSeconds = SmbGetUlong( &request->LastWriteTimeInSeconds ); if ( lastWriteTimeInSeconds != 0 ) { RtlSecondsSince1970ToTime( lastWriteTimeInSeconds, &fileBasicInformation.LastWriteTime ); ExLocalTimeToSystemTime( &fileBasicInformation.LastWriteTime, &fileBasicInformation.LastWriteTime ); } // // Set the new file attributes. Note that we don't return an error // if the client tries to set the Directory or Volume bits -- we // assume that the remote redirector filters such requests. // SRV_SMB_ATTRIBUTES_TO_NT( SmbGetUshort( &request->FileAttributes ), NULL, &fileBasicInformation.FileAttributes ); // // Set the new file information. // status = NtSetInformationFile( fileHandle, &ioStatusBlock, &fileBasicInformation, sizeof(FILE_BASIC_INFORMATION), FileBasicInformation ); // // Close the file--it was only opened to set the attributes. // SRVDBG_RELEASE_HANDLE( fileHandle, "FIL", 30, 0 ); SrvNtClose( fileHandle, TRUE ); if ( !NT_SUCCESS(status) ) { INTERNAL_ERROR( ERROR_LEVEL_UNEXPECTED, "SrvSmbSetInformation: NtSetInformationFile returned %X", status, NULL ); SrvLogServiceFailure( SRV_SVC_NT_SET_INFO_FILE, status ); SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Build the response SMB. // response->WordCount = 0; SmbPutUshort( &response->ByteCount, 0 ); WorkContext->ResponseParameters = NEXT_LOCATION( response, RESP_SET_INFORMATION, 0 ); IF_DEBUG(TRACE2) KdPrint(( "SrvSmbSetInformation complete.\n" )); SmbStatus = SmbStatusSendResponse; Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbSetInformation SMB_PROCESSOR_RETURN_TYPE SrvSmbQueryInformation2 ( SMB_PROCESSOR_PARAMETERS ) /*++ Routine Description: Processes the QueryInformation2 SMB. Arguments: SMB_PROCESSOR_PARAMETERS - See smbtypes.h for a description of the parameters to SMB processor routines. Return Value: SMB_PROCESSOR_RETURN_TYPE - See smbtypes.h --*/ { PREQ_QUERY_INFORMATION2 request; PRESP_QUERY_INFORMATION2 response; NTSTATUS status = STATUS_SUCCESS; SMB_STATUS SmbStatus = SmbStatusInProgress; PRFCB rfcb; SRV_FILE_INFORMATION fileInformation; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_QUERY_INFORMATION2; SrvWmiStartContext(WorkContext); IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "QueryInformation2 request header at 0x%p, response header at 0x%p\n", WorkContext->RequestHeader, WorkContext->ResponseHeader )); KdPrint(( "QueryInformation2 request parameters at 0x%p, response parameters at 0x%p\n", WorkContext->RequestParameters, WorkContext->ResponseParameters )); } request = (PREQ_QUERY_INFORMATION2)WorkContext->RequestParameters; response = (PRESP_QUERY_INFORMATION2)WorkContext->ResponseParameters; // // Verify the FID. If verified, the RFCB block is referenced // and its addresses is stored in the WorkContext block, and the // RFCB address is returned. // rfcb = SrvVerifyFid( WorkContext, SmbGetUshort( &request->Fid ), TRUE, SrvRestartSmbReceived, // serialize with raw write &status ); if ( rfcb == SRV_INVALID_RFCB_POINTER ) { if ( !NT_SUCCESS( status ) ) { // // Invalid file ID or write behind error. Reject the request. // IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryInformation2: Status %X on fid 0x%lx\n", status, SmbGetUshort( &request->Fid ) )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // The work item has been queued because a raw write is in // progress. // SmbStatus = SmbStatusInProgress; goto Cleanup; } if( rfcb->Lfcb->Session->IsSessionExpired ) { status = SESSION_EXPIRED_STATUS_CODE; SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Verify that the client has read attributes access to the file via // the specified handle. // CHECK_FILE_INFORMATION_ACCESS( rfcb->GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileBasicInformation, &status ); if ( !NT_SUCCESS(status) ) { SrvStatistics.GrantedAccessErrors++; IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryInformation2: IoCheckFunctionAccess failed: " "0x%X, GrantedAccess: %lx\n", status, rfcb->GrantedAccess )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Get the necessary information about the file. // status = SrvQueryInformationFile( rfcb->Lfcb->FileHandle, rfcb->Lfcb->FileObject, &fileInformation, (SHARE_TYPE) -1, FALSE ); if ( !NT_SUCCESS(status) ) { INTERNAL_ERROR( ERROR_LEVEL_UNEXPECTED, "SrvSmbQueryInformation2: SrvQueryInformationFile returned %X", status, NULL ); SrvLogServiceFailure( SRV_SVC_NT_QUERY_INFO_FILE, status ); SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Build the response SMB. // response->WordCount = 11; SmbPutDate( &response->CreationDate, fileInformation.CreationDate ); SmbPutTime( &response->CreationTime, fileInformation.CreationTime ); SmbPutDate( &response->LastAccessDate, fileInformation.LastAccessDate ); SmbPutTime( &response->LastAccessTime, fileInformation.LastAccessTime ); SmbPutDate( &response->LastWriteDate, fileInformation.LastWriteDate ); SmbPutTime( &response->LastWriteTime, fileInformation.LastWriteTime ); SmbPutUlong( &response->FileDataSize, fileInformation.DataSize.LowPart ); SmbPutUlong( &response->FileAllocationSize, fileInformation.AllocationSize.LowPart ); SmbPutUshort( &response->FileAttributes, fileInformation.Attributes ); SmbPutUshort( &response->ByteCount, 0 ); WorkContext->ResponseParameters = NEXT_LOCATION( response, RESP_QUERY_INFORMATION2, 0 ); SmbStatus = SmbStatusSendResponse; IF_DEBUG(TRACE2) KdPrint(( "SrvSmbQueryInformation2 complete.\n" )); Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbQueryInformation2 SMB_PROCESSOR_RETURN_TYPE SrvSmbSetInformation2 ( SMB_PROCESSOR_PARAMETERS ) /*++ Routine Description: Processes the Set Information2 SMB. Arguments: SMB_PROCESSOR_PARAMETERS - See smbtypes.h for a description of the parameters to SMB processor routines. Return Value: SMB_PROCESSOR_RETURN_TYPE - See smbtypes.h --*/ { PREQ_SET_INFORMATION2 request; PRESP_SET_INFORMATION2 response; NTSTATUS status = STATUS_SUCCESS; SMB_STATUS SmbStatus = SmbStatusInProgress; PRFCB rfcb; FILE_BASIC_INFORMATION fileBasicInformation; IO_STATUS_BLOCK ioStatusBlock; SMB_DATE date; SMB_TIME time; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_SET_INFORMATION2; SrvWmiStartContext(WorkContext); IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "SetInformation2 request header at 0x%p, response header at 0x%p\n", WorkContext->RequestHeader, WorkContext->ResponseHeader )); KdPrint(( "SetInformation2 request parameters at 0x%p, response parameters at 0x%p\n", WorkContext->RequestParameters, WorkContext->ResponseParameters )); } request = (PREQ_SET_INFORMATION2)WorkContext->RequestParameters; response = (PRESP_SET_INFORMATION2)WorkContext->ResponseParameters; // // Verify the FID. If verified, the RFCB block is referenced // and its addresses is stored in the WorkContext block, and the // RFCB address is returned. // rfcb = SrvVerifyFid( WorkContext, SmbGetUshort( &request->Fid ), TRUE, SrvRestartSmbReceived, // serialize with raw write &status ); if ( rfcb == SRV_INVALID_RFCB_POINTER ) { if ( !NT_SUCCESS( status ) ) { // // Invalid file ID or write behind error. Reject the request. // IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbSetInformation2: Status %X on fid 0x%lx\n", status, SmbGetUshort( &request->Fid ) )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // The work item has been queued because a raw write is in // progress. // SmbStatus = SmbStatusInProgress; goto Cleanup; } if( rfcb->Lfcb->Session->IsSessionExpired ) { status = SESSION_EXPIRED_STATUS_CODE; SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Verify that the client has write attributes access to the file // via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( rfcb->GrantedAccess, IRP_MJ_SET_INFORMATION, FileBasicInformation, &status ); if ( !NT_SUCCESS(status) ) { SrvStatistics.GrantedAccessErrors++; IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbSetInformation2: IoCheckFunctionAccess failed: " "0x%X, GrantedAccess: %lx\n", status, rfcb->GrantedAccess )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Convert the DOS dates and times passed in the SMB to NT TIMEs // to pass to NtSetInformationFile. Note that we zero the rest // of the fileBasicInformation structure so that the corresponding // fields are not changed. // RtlZeroMemory( &fileBasicInformation, sizeof(fileBasicInformation) ); SmbMoveDate( &date, &request->CreationDate ); SmbMoveTime( &time, &request->CreationTime ); if ( !SmbIsDateZero(&date) || !SmbIsTimeZero(&time) ) { SrvDosTimeToTime( &fileBasicInformation.CreationTime, date, time ); } SmbMoveDate( &date, &request->LastAccessDate ); SmbMoveTime( &time, &request->LastAccessTime ); if ( !SmbIsDateZero(&date) || !SmbIsTimeZero(&time) ) { SrvDosTimeToTime( &fileBasicInformation.LastAccessTime, date, time ); } SmbMoveDate( &date, &request->LastWriteDate ); SmbMoveTime( &time, &request->LastWriteTime ); if ( !SmbIsDateZero(&date) || !SmbIsTimeZero(&time) ) { SrvDosTimeToTime( &fileBasicInformation.LastWriteTime, date, time ); } // // Call NtSetInformationFile to set the information from the SMB. // status = NtSetInformationFile( rfcb->Lfcb->FileHandle, &ioStatusBlock, &fileBasicInformation, sizeof(FILE_BASIC_INFORMATION), FileBasicInformation ); if ( !NT_SUCCESS(status) ) { INTERNAL_ERROR( ERROR_LEVEL_UNEXPECTED, "SrvSmbSetInformation2: NtSetInformationFile failed: %X", status, NULL ); SrvLogServiceFailure( SRV_SVC_NT_SET_INFO_FILE, status ); SrvSetSmbError( WorkContext, status ); SmbStatus = SmbStatusSendResponse; goto Cleanup; } #ifdef INCLUDE_SMB_IFMODIFIED rfcb->Lfcb->FileUpdated = TRUE; #endif // // reset the WrittenTo flag. This will allow this rfcb to be cached. // rfcb->WrittenTo = FALSE; // // Build the response SMB. // response->WordCount = 0; SmbPutUshort( &response->ByteCount, 0 ); WorkContext->ResponseParameters = NEXT_LOCATION( response, RESP_SET_INFORMATION2, 0 ); SmbStatus = SmbStatusSendResponse; IF_DEBUG(TRACE2) KdPrint(( "SrvSmbSetInformation2 complete.\n" )); Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbSetInformation2 STATIC NTSTATUS QueryPathOrFileInformation ( IN PWORK_CONTEXT WorkContext, IN PTRANSACTION Transaction, IN USHORT InformationLevel, IN HANDLE FileHandle, OUT PRESP_QUERY_PATH_INFORMATION Response ) { NTSTATUS status; IO_STATUS_BLOCK ioStatusBlock; SRV_FILE_INFORMATION fileInformation; BOOLEAN queryEaSize; USHORT eaErrorOffset; PFILE_ALL_INFORMATION fileAllInformation; ULONG nameInformationSize; PVOID currentLocation; ULONG dataSize; PUNICODE_STRING pathName; ULONG inputBufferLength; PPATHNAME_BUFFER inputBuffer; PFILE_NAME_INFORMATION nameInfoBuffer; PSHARE share; PAGED_CODE( ); Transaction->SetupCount = 0; Transaction->ParameterCount = 0; if( InformationLevel < SMB_INFO_PASSTHROUGH ) { switch ( InformationLevel ) { case SMB_INFO_STANDARD: case SMB_INFO_QUERY_EA_SIZE: // // Information level is either STANDARD or QUERY_EA_SIZE. Both // return normal file information; the latter also returns the // length of the file's EAs. // queryEaSize = (BOOLEAN)(InformationLevel == SMB_INFO_QUERY_EA_SIZE); status = SrvQueryInformationFile( FileHandle, NULL, &fileInformation, (SHARE_TYPE) -1, // Don't care queryEaSize ); if ( NT_SUCCESS(status) ) { // // Build the output parameter and data structures. // PFILESTATUS fileStatus = (PFILESTATUS)Transaction->OutData; Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); SmbPutUshort( &Response->EaErrorOffset, 0 ); Transaction->DataCount = queryEaSize ? 26 : 22; SmbPutDate( &fileStatus->CreationDate, fileInformation.CreationDate ); SmbPutTime( &fileStatus->CreationTime, fileInformation.CreationTime ); SmbPutDate( &fileStatus->LastAccessDate, fileInformation.LastAccessDate ); SmbPutTime( &fileStatus->LastAccessTime, fileInformation.LastAccessTime ); SmbPutDate( &fileStatus->LastWriteDate, fileInformation.LastWriteDate ); SmbPutTime( &fileStatus->LastWriteTime, fileInformation.LastWriteTime ); SmbPutUlong( &fileStatus->DataSize, fileInformation.DataSize.LowPart ); SmbPutUlong( &fileStatus->AllocationSize, fileInformation.AllocationSize.LowPart ); SmbPutUshort( &fileStatus->Attributes, fileInformation.Attributes ); if ( queryEaSize ) { SmbPutUlong( &fileStatus->EaSize, fileInformation.EaSize ); } } else { // // Set the data count to zero so that no data is returned to the // client. // Transaction->DataCount = 0; INTERNAL_ERROR( ERROR_LEVEL_UNEXPECTED, "QueryPathOrFileInformation: SrvQueryInformationFile" "returned %X", status, NULL ); SrvLogServiceFailure( SRV_SVC_NT_QUERY_INFO_FILE, status ); } break; case SMB_INFO_QUERY_EAS_FROM_LIST: case SMB_INFO_QUERY_ALL_EAS: // // The request is for EAs, either all of them or a subset. // status = SrvQueryOs2FeaList( FileHandle, InformationLevel == SMB_INFO_QUERY_EAS_FROM_LIST ? (PGEALIST)Transaction->InData : NULL, NULL, Transaction->DataCount, (PFEALIST)Transaction->OutData, Transaction->MaxDataCount, &eaErrorOffset ); if ( NT_SUCCESS(status) ) { // // The first longword of the OutData buffer holds the length // of the remaining data written (the cbList field of the // FEALIST). Add four (the longword itself) to get the number // of data bytes written. // Transaction->DataCount = SmbGetAlignedUlong( (PULONG)Transaction->OutData ); #if 0 // // If there were no EAs, convert the error to // STATUS_NO_EAS_ON_FILE. OS/2 clients expect STATUS_SUCCESS. // if ( (Transaction->DataCount == 4) && IS_NT_DIALECT( Transaction->Connection->SmbDialect ) ) { status = STATUS_NO_EAS_ON_FILE; } #endif } else { IF_DEBUG(ERRORS) { KdPrint(( "QueryPathOrFileInformation: " "SrvQueryOs2FeaList failed: %X\n", status )); } Transaction->DataCount = 0; } // // Build the output parameter and data structures. // Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); SmbPutUshort( &Response->EaErrorOffset, eaErrorOffset ); break; case SMB_INFO_IS_NAME_VALID: status = STATUS_SUCCESS; Transaction->DataCount = 0; break; case SMB_QUERY_FILE_BASIC_INFO: case SMB_QUERY_FILE_STANDARD_INFO: case SMB_QUERY_FILE_EA_INFO: case SMB_QUERY_FILE_ALT_NAME_INFO: case SMB_QUERY_FILE_STREAM_INFO: case SMB_QUERY_FILE_COMPRESSION_INFO: // // Pass the data buffer directly to the file system as it // is already in NT format. // if( Transaction->MaxDataCount < MAP_SMB_INFO_TO_MIN_NT_SIZE(QueryFileInformationSize, InformationLevel ) ) { // // The buffer is too small. Return an error. // status = STATUS_INFO_LENGTH_MISMATCH; } else { status = NtQueryInformationFile( FileHandle, &ioStatusBlock, Transaction->OutData, Transaction->MaxDataCount, MAP_SMB_INFO_TYPE_TO_NT( QueryFileInformation, InformationLevel ) ); } SmbPutUshort( &Response->EaErrorOffset, 0 ); Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); if (NT_SUCCESS( status) || (status == STATUS_BUFFER_OVERFLOW)) { Transaction->DataCount = (ULONG)ioStatusBlock.Information; } else { Transaction->DataCount = 0; } break; case SMB_QUERY_FILE_NAME_INFO: DoFileNameInfo: share = Transaction->TreeConnect->Share; nameInfoBuffer = (PFILE_NAME_INFORMATION)Transaction->OutData; if ( Transaction->MaxDataCount < FIELD_OFFSET(FILE_NAME_INFORMATION,FileName) ) { // // The buffer is too small to fit even the fixed part. // Return an error. // status = STATUS_INFO_LENGTH_MISMATCH; Transaction->DataCount = 0; } else if ( share->ShareType != ShareTypeDisk ) { // // This is not a disk share. Pass the request straight to // the file system. // status = NtQueryInformationFile( FileHandle, &ioStatusBlock, nameInfoBuffer, Transaction->MaxDataCount, FileNameInformation ); Transaction->DataCount = (ULONG)ioStatusBlock.Information; } else { // // We need a temporary buffer since the file system will // return the share path together with the file name. The // total length might be larger than the max data allowed // in the transaction, though the actual name might fit. // PFILE_NAME_INFORMATION tempBuffer; ULONG tempBufferLength; ASSERT( share->QueryNamePrefixLength >= 0 ); tempBufferLength = Transaction->MaxDataCount + share->QueryNamePrefixLength; tempBuffer = ALLOCATE_HEAP( tempBufferLength, BlockTypeBuffer ); if ( tempBuffer == NULL ) { status = STATUS_INSUFF_SERVER_RESOURCES; } else { status = NtQueryInformationFile( FileHandle, &ioStatusBlock, tempBuffer, tempBufferLength, FileNameInformation ); } // // remove the share part // if ( (status == STATUS_SUCCESS) || (status == STATUS_BUFFER_OVERFLOW) ) { LONG bytesToMove; PWCHAR source; WCHAR slash = L'\\'; // // Calculate how long the name string is, not including the root prefix. // bytesToMove = (LONG)(tempBuffer->FileNameLength - share->QueryNamePrefixLength); if ( bytesToMove <= 0 ) { // // bytesToMove will be zero if this is the root of // the share. Return just a \ for this case. // bytesToMove = sizeof(WCHAR); source = &slash; } else { source = tempBuffer->FileName + share->QueryNamePrefixLength/sizeof(WCHAR); } // // Store the actual file name length. // SmbPutUlong( &nameInfoBuffer->FileNameLength, bytesToMove ); // // If the buffer isn't big enough, return an error and // reduce the amount to be copied. // if ( (ULONG)bytesToMove > (Transaction->MaxDataCount - FIELD_OFFSET(FILE_NAME_INFORMATION,FileName)) ) { status = STATUS_BUFFER_OVERFLOW; bytesToMove = Transaction->MaxDataCount - FIELD_OFFSET(FILE_NAME_INFORMATION,FileName); } else { status = STATUS_SUCCESS; } // // Copy all but the prefix. // RtlCopyMemory( nameInfoBuffer->FileName, source, bytesToMove ); Transaction->DataCount = FIELD_OFFSET(FILE_NAME_INFORMATION,FileName) + bytesToMove; } else { Transaction->DataCount = 0; } if ( tempBuffer != NULL ) { FREE_HEAP( tempBuffer ); } } SmbPutUshort( &Response->EaErrorOffset, 0 ); Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); break; case SMB_QUERY_FILE_ALL_INFO: DoFileAllInfo: // // Setup early for the response in case the call to the file // system fails. // SmbPutUshort( &Response->EaErrorOffset, 0 ); Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); // // Allocate a buffer large enough to return all the information. // The buffer size we request is the size requested by the client // plus room for the extra information returned by the file system // that the server doesn't return to the client. // dataSize = Transaction->MaxDataCount + sizeof( FILE_ALL_INFORMATION ) - sizeof( FILE_BASIC_INFORMATION ) - sizeof( FILE_STANDARD_INFORMATION ) - sizeof( FILE_EA_INFORMATION ) - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName ); fileAllInformation = ALLOCATE_HEAP_COLD( dataSize, BlockTypeDataBuffer ); if ( fileAllInformation == NULL ) { status = STATUS_INSUFFICIENT_RESOURCES; break; } status = NtQueryInformationFile( FileHandle, &ioStatusBlock, fileAllInformation, dataSize, FileAllInformation ); if ( NT_SUCCESS( status ) ) { // // Calculate the size of data we will return. We do not // return the entire buffer, just specific fields. // nameInformationSize = FIELD_OFFSET( FILE_NAME_INFORMATION, FileName ) + fileAllInformation->NameInformation.FileNameLength; Transaction->DataCount = sizeof( FILE_BASIC_INFORMATION ) + sizeof( FILE_STANDARD_INFORMATION ) + sizeof( FILE_EA_INFORMATION ) + nameInformationSize; // // Now copy the data into the transaction buffer. Start with // the fixed sized fields. // currentLocation = Transaction->OutData; *((PFILE_BASIC_INFORMATION)currentLocation)++ = fileAllInformation->BasicInformation; *((PFILE_STANDARD_INFORMATION)currentLocation)++ = fileAllInformation->StandardInformation; *((PFILE_EA_INFORMATION)currentLocation)++ = fileAllInformation->EaInformation; RtlCopyMemory( currentLocation, &fileAllInformation->NameInformation, nameInformationSize ); } else { Transaction->DataCount = 0; } FREE_HEAP( fileAllInformation ); break; default: IF_DEBUG(SMB_ERRORS) { KdPrint(( "QueryPathOrFileInformation: bad info level %d\n", InformationLevel )); } status = STATUS_INVALID_SMB; break; } } else { InformationLevel -= SMB_INFO_PASSTHROUGH; if( InformationLevel == FileNameInformation ) { goto DoFileNameInfo; } else if( InformationLevel == FileAllInformation ) { goto DoFileAllInfo; } // // See if the supplied parameters are correct. // status = IoCheckQuerySetFileInformation( InformationLevel, Transaction->MaxDataCount, FALSE ); if( NT_SUCCESS( status ) ) { // // Some information levels require us to impersonate the client. Do it for all. // status = IMPERSONATE( WorkContext ); if( NT_SUCCESS( status ) ) { status = NtQueryInformationFile( FileHandle, &ioStatusBlock, Transaction->OutData, Transaction->MaxDataCount, InformationLevel ); REVERT(); } } SmbPutUshort( &Response->EaErrorOffset, 0 ); Transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); if (NT_SUCCESS( status) || (status == STATUS_BUFFER_OVERFLOW)) { Transaction->DataCount = (ULONG)ioStatusBlock.Information; } else { Transaction->DataCount = 0; } } return status; } // QueryPathOrFileInformation SMB_TRANS_STATUS SrvSmbQueryFileInformation ( IN OUT PWORK_CONTEXT WorkContext ) /*++ Routine Description: Processes the Query File Information request. This request arrives in a Transaction2 SMB. Query File Information corresponds to the OS/2 DosQFileInfo service. Arguments: WorkContext - Supplies the address of a Work Context Block describing the current request. See smbtypes.h for a more complete description of the valid fields. Return Value: SMB_TRANS_STATUS - Indicates whether an error occurred, and, if so, whether data should be returned to the client. See smbtypes.h for a more complete description. --*/ { PREQ_QUERY_FILE_INFORMATION request; PRESP_QUERY_FILE_INFORMATION response; NTSTATUS status = STATUS_SUCCESS; SMB_TRANS_STATUS SmbStatus = SmbTransStatusInProgress; PTRANSACTION transaction; PRFCB rfcb; USHORT informationLevel; ACCESS_MASK grantedAccess; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_QUERY_FILE_INFORMATION; SrvWmiStartContext(WorkContext); transaction = WorkContext->Parameters.Transaction; IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "Query File Information entered; transaction 0x%p\n", transaction )); } request = (PREQ_QUERY_FILE_INFORMATION)transaction->InParameters; response = (PRESP_QUERY_FILE_INFORMATION)transaction->OutParameters; // // Verify that enough parameter bytes were sent and that we're allowed // to return enough parameter bytes. // if ( (transaction->ParameterCount < sizeof(REQ_QUERY_FILE_INFORMATION)) || (transaction->MaxParameterCount < sizeof(RESP_QUERY_FILE_INFORMATION)) ) { // // Not enough parameter bytes were sent. // IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "SrvSmbQueryFileInformation: bad parameter byte counts: " "%ld %ld\n", transaction->ParameterCount, transaction->MaxParameterCount )); } SrvSetSmbError( WorkContext, STATUS_INVALID_SMB ); status = STATUS_INVALID_SMB; SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Verify the FID. If verified, the RFCB block is referenced // and its addresses is stored in the WorkContext block, and the // RFCB address is returned. // rfcb = SrvVerifyFid( WorkContext, SmbGetUshort( &request->Fid ), TRUE, SrvRestartExecuteTransaction, // serialize with raw write &status ); if ( rfcb == SRV_INVALID_RFCB_POINTER ) { if ( !NT_SUCCESS( status ) ) { // // Invalid file ID or write behind error. Reject the request. // IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryFileInformation: Status %X on FID: 0x%lx\n", status, SmbGetUshort( &request->Fid ) )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // The work item has been queued because a raw write is in // progress. // SmbStatus = SmbTransStatusInProgress; goto Cleanup; } // // // Verify the information level and the number of input and output // data bytes available. // informationLevel = SmbGetUshort( &request->InformationLevel ); grantedAccess = rfcb->GrantedAccess; status = STATUS_SUCCESS; if( informationLevel < SMB_INFO_PASSTHROUGH ) { switch ( informationLevel ) { case SMB_INFO_STANDARD: if ( transaction->MaxDataCount < 22 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryFileInformation: invalid MaxDataCount " "%ld\n", transaction->MaxDataCount )); } status = STATUS_INVALID_SMB; break; } // // Verify that the client has read attributes access to the file // via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileBasicInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_INFO_QUERY_EA_SIZE: if ( transaction->MaxDataCount < 26 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryFileInformation: invalid MaxDataCount " "%ld\n", transaction->MaxDataCount )); } status = STATUS_INVALID_SMB; break; } // // Verify that the client has read EA access to the file via the // specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileEaInformation, &status ); IF_DEBUG(SMB_ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_INFO_QUERY_EAS_FROM_LIST: case SMB_INFO_QUERY_ALL_EAS: // // Verify that the client has read EA access to the file via the // specified handle. // CHECK_FUNCTION_ACCESS( grantedAccess, IRP_MJ_QUERY_EA, 0, 0, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_BASIC_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileBasicInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_STANDARD_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileStandardInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_EA_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileEaInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_NAME_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileNameInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_ALL_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileAllInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_ALT_NAME_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileAlternateNameInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_STREAM_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileStreamInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_QUERY_FILE_COMPRESSION_INFO: CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, FileCompressionInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; default: IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryFileInformation: invalid info level %ld\n", informationLevel )); } status = STATUS_OS2_INVALID_LEVEL; break; } } else { if( informationLevel - SMB_INFO_PASSTHROUGH >= FileMaximumInformation ) { status = STATUS_INVALID_INFO_CLASS; } if( NT_SUCCESS( status ) ) { status = IoCheckQuerySetFileInformation( informationLevel - SMB_INFO_PASSTHROUGH, 0xFFFFFFFF, FALSE ); } if( NT_SUCCESS( status ) ) { CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_QUERY_INFORMATION, informationLevel - SMB_INFO_PASSTHROUGH, &status ); } } if ( !NT_SUCCESS(status) ) { SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Get the necessary information about the file. // status = QueryPathOrFileInformation( WorkContext, transaction, informationLevel, rfcb->Lfcb->FileHandle, (PRESP_QUERY_PATH_INFORMATION)response ); // // Map STATUS_BUFFER_OVERFLOW for OS/2 clients. // if ( status == STATUS_BUFFER_OVERFLOW && !IS_NT_DIALECT( WorkContext->Connection->SmbDialect ) ) { status = STATUS_BUFFER_TOO_SMALL; } // // If an error occurred, return an appropriate response. // if ( !NT_SUCCESS(status) ) { // // QueryPathOrFileInformation already filled in the response // information, so just set the error and return. // SrvSetSmbError2( WorkContext, status, TRUE ); SmbStatus = SmbTransStatusErrorWithData; goto Cleanup; } SmbStatus = SmbTransStatusSuccess; IF_DEBUG(TRACE2) KdPrint(( "SrvSmbQueryFileInformation complete.\n" )); Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbQueryFileInformation SMB_TRANS_STATUS SrvSmbQueryPathInformation ( IN OUT PWORK_CONTEXT WorkContext ) /*++ Routine Description: Processes the Query Path Information request. This request arrives in a Transaction2 SMB. Query Path Information corresponds to the OS/2 DosQPathInfo service. Arguments: WorkContext - Supplies the address of a Work Context Block describing the current request. See smbtypes.h for a more complete description of the valid fields. Return Value: SMB_TRANS_STATUS - Indicates whether an error occurred, and, if so, whether data should be returned to the client. See smbtypes.h for a more complete description. --*/ { PTRANSACTION transaction; PREQ_QUERY_PATH_INFORMATION request; PRESP_QUERY_PATH_INFORMATION response; USHORT informationLevel; NTSTATUS status = STATUS_SUCCESS; HANDLE fileHandle; IO_STATUS_BLOCK ioStatusBlock; OBJECT_ATTRIBUTES objectAttributes; UNICODE_STRING objectName; BOOLEAN isUnicode; SMB_TRANS_STATUS smbStatus = SmbTransStatusInProgress; ACCESS_MASK desiredAccess; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_QUERY_PATH_INFORMATION; SrvWmiStartContext(WorkContext); transaction = WorkContext->Parameters.Transaction; IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "Query Path Information entered; transaction 0x%p\n", transaction )); } // // Verify that enough parameter bytes were sent and that we're allowed // to return enough parameter bytes. // if ( (transaction->ParameterCount < sizeof(REQ_QUERY_PATH_INFORMATION)) || (transaction->MaxParameterCount < sizeof(RESP_QUERY_PATH_INFORMATION)) ) { // // Not enough parameter bytes were sent. // IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryPathInformation: bad parameter byte " "counts: %ld %ld\n", transaction->ParameterCount, transaction->MaxParameterCount )); } SrvSetSmbError( WorkContext, STATUS_INVALID_SMB ); status = STATUS_INVALID_SMB; smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } request = (PREQ_QUERY_PATH_INFORMATION)transaction->InParameters; informationLevel = SmbGetUshort( &request->InformationLevel ); // // The response formats for Query Path and Query File and identical, // so just use the RESP_QUERY_PATH_INFORMATION structure for both. // The request formats differ, so conditionalize access to them. // response = (PRESP_QUERY_PATH_INFORMATION)transaction->OutParameters; switch( informationLevel ) { case SMB_INFO_QUERY_EA_SIZE: case SMB_INFO_QUERY_EAS_FROM_LIST: case SMB_INFO_QUERY_ALL_EAS: // // For these info levels, we must be in a blocking thread because we // might end up waiting for an oplock break. // if( WorkContext->UsingBlockingThread == 0 ) { WorkContext->FspRestartRoutine = SrvRestartExecuteTransaction; SrvQueueWorkToBlockingThread( WorkContext ); smbStatus = SmbTransStatusInProgress; goto Cleanup; } desiredAccess = FILE_READ_EA; break; default: desiredAccess = FILE_READ_ATTRIBUTES; break; } // // Make sure the client is allowed to do this, if we have an Admin share // status = SrvIsAllowedOnAdminShare( WorkContext, WorkContext->TreeConnect->Share ); if( !NT_SUCCESS( status ) ) { SrvSetSmbError( WorkContext, status ); smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Get the path name of the file to open relative to the share. // isUnicode = SMB_IS_UNICODE( WorkContext ); status = SrvCanonicalizePathName( WorkContext, WorkContext->TreeConnect->Share, NULL, request->Buffer, END_OF_TRANSACTION_PARAMETERS( transaction ), TRUE, isUnicode, &objectName ); if( !NT_SUCCESS( status ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbQueryPathInformation: bad path name: %s\n", request->Buffer )); } SrvSetSmbError( WorkContext, status ); smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Special case: If this is the IS_PATH_VALID information level, then // the user just wants to know if the path syntax is correct. Do not // attempt to open the file. // informationLevel = SmbGetUshort( &request->InformationLevel ); if ( informationLevel == SMB_INFO_IS_NAME_VALID ) { transaction->InData = (PVOID)&objectName; // // Get the Share root handle. // smbStatus = SrvGetShareRootHandle( WorkContext->TreeConnect->Share ); if ( !NT_SUCCESS(smbStatus) ) { IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryPathInformation: SrvGetShareRootHandle failed %x.\n", smbStatus )); } if (!isUnicode) { RtlFreeUnicodeString( &objectName ); } SrvSetSmbError( WorkContext, smbStatus ); status = smbStatus; smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } status = SrvSnapGetRootHandle( WorkContext, &WorkContext->Parameters2.FileInformation.FileHandle ); if( !NT_SUCCESS(status) ) { SrvSetSmbError( WorkContext, status ); smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } smbStatus = GenerateQueryPathInfoResponse( WorkContext, SmbTransStatusSuccess ); // // Release the root handle for removable devices // SrvReleaseShareRootHandle( WorkContext->TreeConnect->Share ); if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } goto Cleanup; } // // Initialize the object attributes structure. // SrvInitializeObjectAttributes_U( &objectAttributes, &objectName, (WorkContext->RequestHeader->Flags & SMB_FLAGS_CASE_INSENSITIVE || transaction->Session->UsingUppercasePaths) ? OBJ_CASE_INSENSITIVE : 0L, NULL, NULL ); // // Take the fast path for this if we can // if( informationLevel == SMB_QUERY_FILE_BASIC_INFO ) { FILE_NETWORK_OPEN_INFORMATION fileInformation; UNALIGNED FILE_BASIC_INFORMATION *pbInfo = (PFILE_BASIC_INFORMATION)transaction->OutData; if( transaction->MaxDataCount < sizeof( FILE_BASIC_INFORMATION ) ) { SrvSetSmbError( WorkContext, STATUS_INFO_LENGTH_MISMATCH ); status = STATUS_INFO_LENGTH_MISMATCH; smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } status = IMPERSONATE( WorkContext ); if( NT_SUCCESS( status ) ) { status = SrvGetShareRootHandle( transaction->TreeConnect->Share ); if( NT_SUCCESS( status ) ) { // // The file name is always relative to the share root // status = SrvSnapGetRootHandle( WorkContext, &objectAttributes.RootDirectory ); if( !NT_SUCCESS(status) ) { goto SnapError; } // // Get the information // if( IoFastQueryNetworkAttributes( &objectAttributes, FILE_READ_ATTRIBUTES, 0, &ioStatusBlock, &fileInformation ) == FALSE ) { SrvLogServiceFailure( SRV_SVC_IO_FAST_QUERY_NW_ATTRS, 0 ); ioStatusBlock.Status = STATUS_OBJECT_PATH_NOT_FOUND; } status = ioStatusBlock.Status; // // If the media was changed and we can come up with a new share root handle, // then we should retry the operation // if( SrvRetryDueToDismount( transaction->TreeConnect->Share, status ) ) { status = SrvSnapGetRootHandle( WorkContext, &objectAttributes.RootDirectory ); if( !NT_SUCCESS(status) ) { goto SnapError; } // // Get the information // if( IoFastQueryNetworkAttributes( &objectAttributes, FILE_READ_ATTRIBUTES, 0, &ioStatusBlock, &fileInformation ) == FALSE ) { SrvLogServiceFailure( SRV_SVC_IO_FAST_QUERY_NW_ATTRS, 0 ); ioStatusBlock.Status = STATUS_OBJECT_PATH_NOT_FOUND; } status = ioStatusBlock.Status; } SnapError: SrvReleaseShareRootHandle( transaction->TreeConnect->Share ); } REVERT(); } if( status == STATUS_BUFFER_OVERFLOW ) { goto hard_way; } if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } if ( !NT_SUCCESS( status ) ) { if ( status == STATUS_ACCESS_DENIED ) { SrvStatistics.AccessPermissionErrors++; } IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbQueryPathInformation: IoFastQueryNetworkAttributes " "failed: %X\n", status )); } SrvSetSmbError( WorkContext, status ); smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // FORMULATE THE RESPONSE transaction->SetupCount = 0; transaction->DataCount = sizeof( *pbInfo ); transaction->ParameterCount = sizeof( RESP_QUERY_FILE_INFORMATION ); SmbPutUshort( &response->EaErrorOffset, 0 ); pbInfo->CreationTime = fileInformation.CreationTime; pbInfo->LastAccessTime = fileInformation.LastAccessTime; pbInfo->LastWriteTime = fileInformation.LastWriteTime; pbInfo->ChangeTime = fileInformation.ChangeTime; pbInfo->FileAttributes = fileInformation.FileAttributes; smbStatus = SmbTransStatusSuccess; goto Cleanup; } hard_way: IF_SMB_DEBUG(QUERY_SET2) KdPrint(( "Opening file %wZ\n", &objectName )); // // Open the file -- must be opened in order to have a handle to pass // to NtQueryInformationFile. We will close it after getting the // necessary information. // INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpenAttempts ); INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpensForPathOperations ); // // !!! We may block if the file is oplocked. We must do this, because // it is required to get the FS to break a batch oplock. // We should figure out a way to do this without blocking. // status = SrvIoCreateFile( WorkContext, &fileHandle, desiredAccess, &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition FILE_OPEN_REPARSE_POINT, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options transaction->TreeConnect->Share ); if( status == STATUS_INVALID_PARAMETER ) { status = SrvIoCreateFile( WorkContext, &fileHandle, desiredAccess, &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition 0, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options transaction->TreeConnect->Share ); } if ( NT_SUCCESS(status) ) { SRVDBG_CLAIM_HANDLE( fileHandle, "FIL", 21, 0 ); } else { SrvSetSmbError( WorkContext, status ); smbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } // // Save a copy of the file handle for the restart routine. // WorkContext->Parameters2.FileInformation.FileHandle = fileHandle; ASSERT( status != STATUS_OPLOCK_BREAK_IN_PROGRESS ); smbStatus = GenerateQueryPathInfoResponse( WorkContext, status ); Cleanup: SrvWmiEndContext(WorkContext); return smbStatus; } // SrvSmbQueryPathInformation SMB_TRANS_STATUS GenerateQueryPathInfoResponse ( IN PWORK_CONTEXT WorkContext, IN NTSTATUS OpenStatus ) /*++ Routine Description: This function completes processing for and generates a response to a query path information response SMB. Arguments: WorkContext - A pointer to the work context block for this SMB OpenStatus - The completion status of the open. Return Value: The status of the SMB processing. --*/ { PREQ_QUERY_PATH_INFORMATION request; PRESP_QUERY_PATH_INFORMATION response; PTRANSACTION transaction; NTSTATUS status; BOOLEAN error; HANDLE fileHandle; USHORT informationLevel; PFILE_OBJECT fileObject; OBJECT_HANDLE_INFORMATION handleInformation; PAGED_CODE( ); transaction = WorkContext->Parameters.Transaction; IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "Query Path Information entered; transaction 0x%p\n", transaction )); } request = (PREQ_QUERY_PATH_INFORMATION)transaction->InParameters; response = (PRESP_QUERY_PATH_INFORMATION)transaction->OutParameters; fileHandle = WorkContext->Parameters2.FileInformation.FileHandle; // // If the user didn't have this permission, update the // statistics database. // if ( OpenStatus == STATUS_ACCESS_DENIED ) { SrvStatistics.AccessPermissionErrors++; } if ( !NT_SUCCESS( OpenStatus ) ) { IF_DEBUG(ERRORS) { KdPrint(( "GenerateQueryPathInfoResponse: SrvIoCreateFile failed: %X\n", OpenStatus )); } SrvSetSmbError( WorkContext, OpenStatus ); return SmbTransStatusErrorWithoutData; } IF_SMB_DEBUG(QUERY_SET2) { KdPrint(( "SrvIoCreateFile succeeded, handle = 0x%p\n", fileHandle )); } // // Find out the access the user has. // status = ObReferenceObjectByHandle( fileHandle, 0, NULL, KernelMode, (PVOID *)&fileObject, &handleInformation ); if ( !NT_SUCCESS(status) ) { SrvLogServiceFailure( SRV_SVC_OB_REF_BY_HANDLE, status ); // // This internal error bugchecks the system. // INTERNAL_ERROR( ERROR_LEVEL_IMPOSSIBLE, "GenerateQueryPathInfoResponse: unable to reference file handle 0x%lx", fileHandle, NULL ); SrvSetSmbError( WorkContext, OpenStatus ); return SmbTransStatusErrorWithoutData; } ObDereferenceObject( fileObject ); // // Verify the information level and the number of input and output // data bytes available. // informationLevel = SmbGetUshort( &request->InformationLevel ); error = FALSE; if( informationLevel < SMB_INFO_PASSTHROUGH ) { switch ( informationLevel ) { case SMB_INFO_STANDARD: if ( transaction->MaxDataCount < 22 ) { IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "GenerateQueryPathInfoResponse: invalid " "MaxDataCount %ld\n", transaction->MaxDataCount )); } error = TRUE; } break; case SMB_INFO_QUERY_EA_SIZE: if ( transaction->MaxDataCount < 26 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "GenerateQueryPathInfoResponse: invalid " "MaxDataCount %ld\n", transaction->MaxDataCount )); } error = TRUE; } break; case SMB_INFO_QUERY_EAS_FROM_LIST: case SMB_INFO_QUERY_ALL_EAS: if ( transaction->MaxDataCount < 4 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "GenerateQueryPathInfoResponse: invalid " "MaxDataCount %ld\n", transaction->MaxDataCount )); } error = TRUE; } break; case SMB_INFO_IS_NAME_VALID: break; case SMB_QUERY_FILE_BASIC_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileBasicInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_STANDARD_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileStandardInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_EA_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileEaInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_NAME_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileNameInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_ALL_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileAllInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_ALT_NAME_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileAlternateNameInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_STREAM_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileStreamInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; case SMB_QUERY_FILE_COMPRESSION_INFO: CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, FileCompressionInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbQueryFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, handleInformation.GrantedAccess )); } } break; default: IF_DEBUG(SMB_ERRORS) { KdPrint(( "GenerateQueryPathInfoResponse: invalid info level" "%ld\n", informationLevel )); } error = TRUE; break; } } else { if( informationLevel - SMB_INFO_PASSTHROUGH >= FileMaximumInformation ) { status = STATUS_INVALID_INFO_CLASS; } if( NT_SUCCESS( status ) ) { status = IoCheckQuerySetFileInformation( informationLevel - SMB_INFO_PASSTHROUGH, 0xFFFFFFFF, FALSE ); } if( NT_SUCCESS( status ) ) { CHECK_FILE_INFORMATION_ACCESS( handleInformation.GrantedAccess, IRP_MJ_QUERY_INFORMATION, informationLevel - SMB_INFO_PASSTHROUGH, &status ); } else { error = TRUE; } } if ( error ) { SRVDBG_RELEASE_HANDLE( fileHandle, "FIL", 32, 0 ); SrvNtClose( fileHandle, TRUE ); SrvSetSmbError( WorkContext, STATUS_OS2_INVALID_LEVEL ); return SmbTransStatusErrorWithoutData; } // // Get the necessary information about the file. // status = QueryPathOrFileInformation( WorkContext, transaction, informationLevel, fileHandle, (PRESP_QUERY_PATH_INFORMATION)response ); // // Map STATUS_BUFFER_OVERFLOW for OS/2 clients. // if ( status == STATUS_BUFFER_OVERFLOW && !IS_NT_DIALECT( WorkContext->Connection->SmbDialect ) ) { status = STATUS_BUFFER_TOO_SMALL; } // // Close the file--it was only opened to read the attributes. // if ( informationLevel != SMB_INFO_IS_NAME_VALID ) { SRVDBG_RELEASE_HANDLE( fileHandle, "FIL", 33, 0 ); SrvNtClose( fileHandle, TRUE ); } // // If an error occurred, return an appropriate response. // if ( !NT_SUCCESS(status) ) { // // QueryPathOrFileInformation already set the response parameters, // so just return an error condition. // SrvSetSmbError2( WorkContext, status, TRUE ); return SmbTransStatusErrorWithData; } IF_DEBUG(TRACE2) KdPrint(( "GenerateQueryPathInfoResponse complete.\n" )); return SmbTransStatusSuccess; } // GenerateQueryPathInfoResponse STATIC NTSTATUS SetPathOrFileInformation ( IN PWORK_CONTEXT WorkContext, IN PTRANSACTION Transaction, IN USHORT InformationLevel, IN HANDLE FileHandle, OUT PRESP_SET_PATH_INFORMATION Response ) { NTSTATUS status = STATUS_SUCCESS; IO_STATUS_BLOCK ioStatusBlock; SMB_DATE date; SMB_TIME time; PWCHAR p, ep; PFILESTATUS fileStatus = (PFILESTATUS)Transaction->InData; FILE_BASIC_INFORMATION fileBasicInformation; USHORT eaErrorOffset; PAGED_CODE( ); if( InformationLevel < SMB_INFO_PASSTHROUGH ) { switch( InformationLevel ) { case SMB_INFO_STANDARD: // // Information level is STANDARD. Set normal file information. // Convert the DOS dates and times passed in the SMB to NT TIMEs // to pass to NtSetInformationFile. Note that we zero the rest // of the fileBasicInformation structure so that the corresponding // fields are not changed. Note also that the file attributes // are not changed. // RtlZeroMemory( &fileBasicInformation, sizeof(fileBasicInformation) ); if ( !SmbIsDateZero(&fileStatus->CreationDate) || !SmbIsTimeZero(&fileStatus->CreationTime) ) { SmbMoveDate( &date, &fileStatus->CreationDate ); SmbMoveTime( &time, &fileStatus->CreationTime ); SrvDosTimeToTime( &fileBasicInformation.CreationTime, date, time ); } if ( !SmbIsDateZero(&fileStatus->LastAccessDate) || !SmbIsTimeZero(&fileStatus->LastAccessTime) ) { SmbMoveDate( &date, &fileStatus->LastAccessDate ); SmbMoveTime( &time, &fileStatus->LastAccessTime ); SrvDosTimeToTime( &fileBasicInformation.LastAccessTime, date, time ); } if ( !SmbIsDateZero(&fileStatus->LastWriteDate) || !SmbIsTimeZero(&fileStatus->LastWriteTime) ) { SmbMoveDate( &date, &fileStatus->LastWriteDate ); SmbMoveTime( &time, &fileStatus->LastWriteTime ); SrvDosTimeToTime( &fileBasicInformation.LastWriteTime, date, time ); } // // Call NtSetInformationFile to set the information from the SMB. // status = NtSetInformationFile( FileHandle, &ioStatusBlock, &fileBasicInformation, sizeof(FILE_BASIC_INFORMATION), FileBasicInformation ); if ( !NT_SUCCESS(status) ) { INTERNAL_ERROR( ERROR_LEVEL_UNEXPECTED, "SetPathOrFileInformation: SrvSetInformationFile returned: %X", status, NULL ); SrvLogServiceFailure( SRV_SVC_NT_SET_INFO_FILE, status ); } // // No EAs to deal with. Set EA error offset to zero. // SmbPutUshort( &Response->EaErrorOffset, 0 ); break; case SMB_INFO_QUERY_EA_SIZE: // // The request is to set the file's EAs. // status = SrvSetOs2FeaList( FileHandle, (PFEALIST)Transaction->InData, Transaction->DataCount, &eaErrorOffset ); if ( !NT_SUCCESS(status) ) { IF_DEBUG(ERRORS) { KdPrint(( "SetPathOrFileInformation: SrvSetOs2FeaList " "failed: %X\n", status )); } } // // Return the EA error offset in the response. // SmbPutUshort( &Response->EaErrorOffset, eaErrorOffset ); break; case SMB_SET_FILE_BASIC_INFO: case SMB_SET_FILE_DISPOSITION_INFO: case SMB_SET_FILE_ALLOCATION_INFO: case SMB_SET_FILE_END_OF_FILE_INFO: // // The data buffer is in NT format. Pass it directly to the // filesystem. // if( Transaction->DataCount < MAP_SMB_INFO_TO_MIN_NT_SIZE(SetFileInformationSize, InformationLevel ) ) { // // The buffer is too small. Return an error. // status = STATUS_INFO_LENGTH_MISMATCH; } else { status = NtSetInformationFile( FileHandle, &ioStatusBlock, Transaction->InData, Transaction->DataCount, MAP_SMB_INFO_TYPE_TO_NT( SetFileInformation, InformationLevel ) ); } // // No EAs to deal with. Set EA error offset to zero. // SmbPutUshort( &Response->EaErrorOffset, 0 ); break; default: status = STATUS_OS2_INVALID_LEVEL; break; } } else { PFILE_RENAME_INFORMATION setInfo = NULL; ULONG setInfoLength; #ifdef _WIN64 PFILE_RENAME_INFORMATION32 pRemoteInfo; #endif InformationLevel -= SMB_INFO_PASSTHROUGH; setInfo = (PFILE_RENAME_INFORMATION)Transaction->InData; setInfoLength = Transaction->DataCount; // // There are some info levels which we do not allow in this path. Unless we // put in special handling, we can not allow any that pass handles. And we // would need to be careful on any that allow renaming or linking (to prevent // escaping the share). These are the ones we restrict or disallow, // which the I/O subsystem may otherwise allow: // switch( InformationLevel ) { case FileLinkInformation: case FileMoveClusterInformation: case FileTrackingInformation: case FileCompletionInformation: case FileMailslotSetInformation: status = STATUS_NOT_SUPPORTED; break; case FileRenameInformation: { PWCHAR s, es; #ifdef _WIN64 pRemoteInfo = (PFILE_RENAME_INFORMATION32)Transaction->InData; setInfoLength = Transaction->DataCount + sizeof(PVOID)-sizeof(ULONG); setInfo = (PFILE_RENAME_INFORMATION)ALLOCATE_NONPAGED_POOL( setInfoLength, BlockTypeMisc ); if( !setInfo ) { status = STATUS_INSUFFICIENT_RESOURCES; break; } // Thunk most of the structure but wait to copy until we validate the file // name length is correct setInfo->ReplaceIfExists = pRemoteInfo->ReplaceIfExists; setInfo->RootDirectory = UlongToHandle( pRemoteInfo->RootDirectory ); setInfo->FileNameLength = pRemoteInfo->FileNameLength; #endif // // See if the structure is internally consistent // if( setInfoLength < sizeof( FILE_RENAME_INFORMATION ) || setInfo->RootDirectory != NULL || setInfo->FileNameLength > setInfoLength || (setInfo->FileNameLength & (sizeof(WCHAR)-1)) || setInfo->FileNameLength + FIELD_OFFSET( FILE_RENAME_INFORMATION, FileName ) > setInfoLength ) { status = STATUS_INVALID_PARAMETER; break; } #ifdef _WIN64 // We've validated the original buffer, so lets copy the filename RtlCopyMemory( setInfo->FileName, pRemoteInfo->FileName, setInfo->FileNameLength ); #endif // // If there are any path separaters in the name, then we do not support // this operation. // es = &setInfo->FileName[ setInfo->FileNameLength / sizeof( WCHAR ) ]; for( s = setInfo->FileName; s < es; s++ ) { if( IS_UNICODE_PATH_SEPARATOR( *s ) ) { status = STATUS_NOT_SUPPORTED; break; } } } } if( NT_SUCCESS( status ) ) { // // See if the supplied parameters are correct. // status = IoCheckQuerySetFileInformation( InformationLevel, setInfoLength, TRUE ); if( NT_SUCCESS( status ) ) { // // Some information levels require us to impersonate the client. // status = IMPERSONATE( WorkContext ); if( NT_SUCCESS( status ) ) { status = NtSetInformationFile( FileHandle, &ioStatusBlock, setInfo, setInfoLength, InformationLevel ); REVERT(); // // No EAs to deal with. Set EA error offset to zero. // SmbPutUshort( &Response->EaErrorOffset, 0 ); } } } #ifdef _WIN64 if( (FileRenameInformation == InformationLevel) && setInfo ) { DEALLOCATE_NONPAGED_POOL( setInfo ); setInfo = NULL; } #endif } // // Build the output parameter and data structures. It is basically // the same for all info levels reguardless of the completion status. // Transaction->SetupCount = 0; Transaction->ParameterCount = 2; Transaction->DataCount = 0; return status; } // SetPathOrFileInformation SMB_TRANS_STATUS SrvSmbSetFileInformation ( IN OUT PWORK_CONTEXT WorkContext ) /*++ Routine Description: Processes the Set File Information request. This request arrives in a Transaction2 SMB. Set File Information corresponds to the OS/2 DosSetFileInfo service. Arguments: WorkContext - Supplies the address of a Work Context Block describing the current request. See smbtypes.h for a more complete description of the valid fields. Return Value: SMB_TRANS_STATUS - Indicates whether an error occurred, and, if so, whether data should be returned to the client. See smbtypes.h for a more complete description. --*/ { PREQ_SET_FILE_INFORMATION request; PRESP_SET_FILE_INFORMATION response; NTSTATUS status = STATUS_SUCCESS; SMB_TRANS_STATUS SmbStatus = SmbTransStatusInProgress; PTRANSACTION transaction; PRFCB rfcb; USHORT informationLevel; USHORT NtInformationLevel; ACCESS_MASK grantedAccess; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_SET_FILE_INFORMATION; SrvWmiStartContext(WorkContext); transaction = WorkContext->Parameters.Transaction; IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "Set File Information entered; transaction 0x%p\n", transaction )); } request = (PREQ_SET_FILE_INFORMATION)transaction->InParameters; response = (PRESP_SET_FILE_INFORMATION)transaction->OutParameters; // // Verify that enough parameter bytes were sent and that we're allowed // to return enough parameter bytes. // if ( (transaction->ParameterCount < sizeof(REQ_SET_FILE_INFORMATION)) || (transaction->MaxParameterCount < sizeof(RESP_SET_FILE_INFORMATION)) ) { // // Not enough parameter bytes were sent. // IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: bad parameter byte counts: " "%ld %ld\n", transaction->ParameterCount, transaction->MaxParameterCount )); } SrvSetSmbError( WorkContext, STATUS_INVALID_SMB ); status = STATUS_INVALID_SMB; SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Verify the FID. If verified, the RFCB block is referenced // and its addresses is stored in the WorkContext block, and the // RFCB address is returned. // rfcb = SrvVerifyFid( WorkContext, SmbGetUshort( &request->Fid ), TRUE, SrvRestartExecuteTransaction, // serialize with raw write &status ); if ( rfcb == SRV_INVALID_RFCB_POINTER ) { if ( !NT_SUCCESS( status ) ) { // // Invalid file ID or write behind error. Reject the request. // IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbSetFileInformation: Status %X on FID: 0x%lx\n", status, SmbGetUshort( &request->Fid ) )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // The work item has been queued because a raw write is in // progress. // SmbStatus = SmbTransStatusInProgress; goto Cleanup; } // // Verify the information level and the number of input and output // data bytes available. // informationLevel = SmbGetUshort( &request->InformationLevel ); grantedAccess = rfcb->GrantedAccess; status = STATUS_SUCCESS; if( informationLevel < SMB_INFO_PASSTHROUGH ) { switch ( informationLevel ) { case SMB_INFO_STANDARD: if ( transaction->DataCount < 22 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileBasicInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_INFO_QUERY_EA_SIZE: if ( transaction->DataCount < 4 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->MaxParameterCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write EA access to the file via // the specified handle. // CHECK_FUNCTION_ACCESS( grantedAccess, IRP_MJ_SET_EA, 0, 0, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_SET_FILE_BASIC_INFO: if ( transaction->DataCount != sizeof( FILE_BASIC_INFORMATION ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileBasicInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; #if 0 // No longer supported case SMB_SET_FILE_RENAME_INFO: // // The data must contain rename information plus a non-zero // length name. // if ( transaction->DataCount <= FIELD_OFFSET( FILE_RENAME_INFORMATION, FileName ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileRenameInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; #endif case SMB_SET_FILE_DISPOSITION_INFO: if ( transaction->DataCount != sizeof( FILE_DISPOSITION_INFORMATION ) ){ IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileDispositionInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_SET_FILE_ALLOCATION_INFO: if ( transaction->DataCount != sizeof( FILE_ALLOCATION_INFORMATION ) ){ IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileAllocationInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; case SMB_SET_FILE_END_OF_FILE_INFO: if ( transaction->DataCount != sizeof( FILE_END_OF_FILE_INFORMATION ) ){ IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid DataCount %ld\n", transaction->DataCount )); } status = STATUS_INVALID_SMB; } // // Verify that the client has write attributes access to the // file via the specified handle. // CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, FileEndOfFileInformation, &status ); IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", status, grantedAccess )); } } break; default: IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetFileInformation: invalid info level %ld\n", informationLevel )); } status = STATUS_OS2_INVALID_LEVEL; } } else { if( informationLevel - SMB_INFO_PASSTHROUGH >= FileMaximumInformation ) { status = STATUS_INVALID_INFO_CLASS; } else { CHECK_FILE_INFORMATION_ACCESS( grantedAccess, IRP_MJ_SET_INFORMATION, informationLevel - SMB_INFO_PASSTHROUGH, &status ); } IF_DEBUG(ERRORS) { if ( !NT_SUCCESS(status) ) { KdPrint(( "SrvSmbSetFileInformation level %u: IoCheckFunctionAccess " "failed: 0x%X, GrantedAccess: %lx\n", informationLevel, status, grantedAccess )); } } } if ( !NT_SUCCESS(status) ) { SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Set the appropriate information about the file. // status = SetPathOrFileInformation( WorkContext, transaction, informationLevel, rfcb->Lfcb->FileHandle, (PRESP_SET_PATH_INFORMATION)response ); // // If an error occurred, return an appropriate response. // if ( !NT_SUCCESS(status) ) { // // SetPathOrFileInformation already set the response parameters, // so just return an error condition. // SrvSetSmbError2( WorkContext, status, TRUE ); SmbStatus = SmbTransStatusErrorWithData; goto Cleanup; } #ifdef INCLUDE_SMB_IFMODIFIED rfcb->Lfcb->FileUpdated = TRUE; #endif // // reset this boolean so that the rfcb will not be cached after client close // rfcb->IsCacheable = FALSE; SmbStatus = SmbTransStatusSuccess; IF_DEBUG(TRACE2) KdPrint(( "SrvSmbSetFileInformation complete.\n" )); Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbSetFileInformation SMB_TRANS_STATUS SrvSmbSetPathInformation ( IN OUT PWORK_CONTEXT WorkContext ) /*++ Routine Description: Processes the Set Path Information request. This request arrives in a Transaction2 SMB. Set Path Information corresponds to the OS/2 DosSetPathInfo service. Arguments: WorkContext - Supplies the address of a Work Context Block describing the current request. See smbtypes.h for a more complete description of the valid fields. Return Value: SMB_TRANS_STATUS - Indicates whether an error occurred, and, if so, whether data should be returned to the client. See smbtypes.h for a more complete description. --*/ { PTRANSACTION transaction; PREQ_SET_PATH_INFORMATION request; USHORT informationLevel; NTSTATUS status = STATUS_SUCCESS; SMB_TRANS_STATUS SmbStatus = SmbTransStatusInProgress; IO_STATUS_BLOCK ioStatusBlock; HANDLE fileHandle; OBJECT_ATTRIBUTES objectAttributes; UNICODE_STRING objectName; BOOLEAN isUnicode; ACCESS_MASK desiredAccess; PAGED_CODE( ); if (WorkContext->PreviousSMB == EVENT_TYPE_SMB_LAST_EVENT) WorkContext->PreviousSMB = EVENT_TYPE_SMB_SET_PATH_INFORMATION; SrvWmiStartContext(WorkContext); transaction = WorkContext->Parameters.Transaction; IF_SMB_DEBUG(QUERY_SET1) { KdPrint(( "SrvSmbSetPathInformation entered; transaction 0x%p\n", transaction )); } request = (PREQ_SET_PATH_INFORMATION)transaction->InParameters; informationLevel = SmbGetUshort( &request->InformationLevel ); switch( informationLevel ) { case SMB_SET_FILE_ALLOCATION_INFO: case SMB_SET_FILE_END_OF_FILE_INFO: desiredAccess = FILE_WRITE_DATA; break; case SMB_SET_FILE_DISPOSITION_INFO: desiredAccess = DELETE; break; case SMB_INFO_SET_EAS: desiredAccess = FILE_WRITE_EA; break; default: desiredAccess = FILE_WRITE_ATTRIBUTES; break; } if( desiredAccess != FILE_WRITE_ATTRIBUTES && WorkContext->UsingBlockingThread == 0 ) { // // We can't process the SMB in a nonblocking thread because this // info level requires opening the file, which may be oplocked, so // the open operation may block. // WorkContext->FspRestartRoutine = SrvRestartExecuteTransaction; SrvQueueWorkToBlockingThread( WorkContext ); SmbStatus = SmbTransStatusInProgress; goto Cleanup; } // // Verify that enough parameter bytes were sent and that we're allowed // to return enough parameter bytes. // request = (PREQ_SET_PATH_INFORMATION)transaction->InParameters; if ( (transaction->ParameterCount < sizeof(REQ_SET_PATH_INFORMATION)) || (transaction->MaxParameterCount < sizeof(RESP_SET_PATH_INFORMATION)) ) { // // Not enough parameter bytes were sent. // IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: bad parameter byte " "counts: %ld %ld\n", transaction->ParameterCount, transaction->MaxParameterCount )); } SrvSetSmbError( WorkContext, STATUS_INVALID_SMB ); status = STATUS_INVALID_SMB; SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Make sure the client is allowed to do this, if we have an Admin share // status = SrvIsAllowedOnAdminShare( WorkContext, transaction->TreeConnect->Share ); if( !NT_SUCCESS( status ) ) { SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // Get the path name of the file to open relative to the share. // isUnicode = SMB_IS_UNICODE( WorkContext ); status = SrvCanonicalizePathName( WorkContext, transaction->TreeConnect->Share, NULL, request->Buffer, END_OF_TRANSACTION_PARAMETERS( transaction ), TRUE, isUnicode, &objectName ); if( !NT_SUCCESS( status ) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: bad path name: %s\n", request->Buffer )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } // // If the client is trying to operate on the root of the share, reject // the request. // if ( objectName.Length < sizeof(WCHAR) ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: attempting to set info on " "share root\n" )); } SrvSetSmbError( WorkContext, STATUS_ACCESS_DENIED ); status = STATUS_ACCESS_DENIED; if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } SmbStatus = SmbStatusSendResponse; goto Cleanup; } // // Initialize the object attributes structure. // SrvInitializeObjectAttributes_U( &objectAttributes, &objectName, (WorkContext->RequestHeader->Flags & SMB_FLAGS_CASE_INSENSITIVE || transaction->Session->UsingUppercasePaths) ? OBJ_CASE_INSENSITIVE : 0L, NULL, NULL ); IF_SMB_DEBUG(QUERY_SET2) { KdPrint(( "Opening file %wZ\n", &objectName )); } // // Open the file -- must be opened in order to have a handle to pass // to NtSetInformationFile. We will close it after getting the // necessary information. // // The DosQPathInfo API insures that EAs are written directly to // the disk rather than cached, so if EAs are being written, open // with FILE_WRITE_THROUGH. See OS/2 1.2 DCR 581 for more // information. // INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpenAttempts ); INCREMENT_DEBUG_STAT( SrvDbgStatistics.TotalOpensForPathOperations ); status = SrvIoCreateFile( WorkContext, &fileHandle, desiredAccess, &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition FILE_OPEN_REPARSE_POINT, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options transaction->TreeConnect->Share ); if( status == STATUS_INVALID_PARAMETER ) { status = SrvIoCreateFile( WorkContext, &fileHandle, desiredAccess, &objectAttributes, &ioStatusBlock, NULL, // AllocationSize 0, // FileAttributes FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, // ShareAccess FILE_OPEN, // Disposition 0, // CreateOptions NULL, // EaBuffer 0, // EaLength CreateFileTypeNone, NULL, // ExtraCreateParameters IO_FORCE_ACCESS_CHECK, // Options transaction->TreeConnect->Share ); } ASSERT( status != STATUS_OPLOCK_BREAK_IN_PROGRESS ); if ( NT_SUCCESS(status) ) { SRVDBG_CLAIM_HANDLE( fileHandle, "FIL", 22, 0 ); } if ( !isUnicode ) { RtlFreeUnicodeString( &objectName ); } if ( !NT_SUCCESS( status ) ) { // // If the user didn't have this permission, update the // statistics database. // if ( status == STATUS_ACCESS_DENIED ) { SrvStatistics.AccessPermissionErrors++; } IF_DEBUG(ERRORS) { KdPrint(( "SrvSmbSetPathInformation: SrvIoCreateFile failed: " "%X\n", status )); } SrvSetSmbError( WorkContext, status ); SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } IF_SMB_DEBUG(QUERY_SET2) { KdPrint(( "SrvIoCreateFile succeeded, handle = 0x%p\n", fileHandle )); } if( informationLevel < SMB_INFO_PASSTHROUGH ) { // // Verify the information level and the number of input and output // data bytes available. // BOOLEAN error = FALSE; switch ( informationLevel ) { case SMB_INFO_STANDARD: if ( transaction->DataCount < 22 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: invalid DataCount %ld\n", transaction->DataCount )); } error = TRUE; } break; case SMB_INFO_QUERY_EA_SIZE: case SMB_INFO_QUERY_ALL_EAS: if ( transaction->DataCount < 4 ) { IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: invalid DataCount %ld\n", transaction->MaxParameterCount )); } error = TRUE; } break; default: IF_DEBUG(SMB_ERRORS) { KdPrint(( "SrvSmbSetPathInformation: invalid info level %ld\n", informationLevel )); } error = TRUE; } if ( error ) { // // Just return an error condition. // SrvSetSmbError2( WorkContext, STATUS_OS2_INVALID_LEVEL, TRUE ); status = STATUS_OS2_INVALID_LEVEL; SmbStatus = SmbTransStatusErrorWithoutData; goto Cleanup; } } // // Set the appropriate information about the file. // status = SetPathOrFileInformation( WorkContext, transaction, informationLevel, fileHandle, (PRESP_SET_PATH_INFORMATION)transaction->OutParameters ); // // Close the file--it was only opened to write the attributes. // SRVDBG_RELEASE_HANDLE( fileHandle, "FIL", 35, 0 ); SrvNtClose( fileHandle, TRUE ); // // If an error occurred, return an appropriate response. // if ( !NT_SUCCESS(status) ) { // // SetPathOrFileInformation already set the response parameters, // so just return an error condition. // SrvSetSmbError2( WorkContext, status, TRUE ); SmbStatus = SmbTransStatusErrorWithData; goto Cleanup; } SmbStatus = SmbTransStatusSuccess; IF_DEBUG(TRACE2) KdPrint(( "SrvSmbSetPathInformation complete.\n" )); Cleanup: SrvWmiEndContext(WorkContext); return SmbStatus; } // SrvSmbSetPathInformation