CDROM Storage Class Driver.zip

/*-- Copyright (C) Microsoft Corporation. All rights reserved. Module Name: ioctl.c Abstract: Include all funtions for processing IOCTLs Environment: kernel mode only Notes: Revision History: --*/ #include "stddef.h" #include "string.h" #include "ntddk.h" #include "ntddstor.h" #include "cdrom.h" #include "ioctl.h" #include "scratch.h" #include "mmc.h" #ifdef DEBUG_USE_WPP #include "ioctl.tmh" #endif #define FirstDriveLetter 'C' #define LastDriveLetter 'Z' #if DBG LPCSTR READ_DVD_STRUCTURE_FORMAT_STRINGS[DvdMaxDescriptor+1] = { "Physical", "Copyright", "DiskKey", "BCA", "Manufacturer", "Unknown" }; #endif // DBG _IRQL_requires_max_(APC_LEVEL) VOID GetConfigurationDataConversionTypeAllToTypeOne( _In_ FEATURE_NUMBER RequestedFeature, _In_ PSCSI_REQUEST_BLOCK Srb, _Out_ size_t * DataLength ); _IRQL_requires_max_(APC_LEVEL) VOID GetConfigurationDataSynthesize( _In_reads_bytes_(InputBufferSize) PVOID InputBuffer, _In_ ULONG InputBufferSize, _Out_writes_bytes_(OutputBufferSize) PVOID OutputBuffer, _In_ size_t OutputBufferSize, _In_ FEATURE_NUMBER StartingFeature, _In_ ULONG RequestType, _Out_ size_t * DataLength ); _IRQL_requires_max_(APC_LEVEL) PCDB RequestGetScsiPassThroughCdb( _In_ PIRP Irp ); #ifdef ALLOC_PRAGMA #pragma alloc_text(PAGE, DeviceIsPlayActive) #pragma alloc_text(PAGE, RequestHandleGetDvdRegion) #pragma alloc_text(PAGE, RequestHandleReadTOC) #pragma alloc_text(PAGE, RequestHandleReadTocEx) #pragma alloc_text(PAGE, RequestHandleGetConfiguration) #pragma alloc_text(PAGE, RequestHandleGetDriveGeometry) #pragma alloc_text(PAGE, RequestHandleDiskVerify) #pragma alloc_text(PAGE, RequestHandleCheckVerify) #pragma alloc_text(PAGE, RequestHandleFakePartitionInfo) #pragma alloc_text(PAGE, RequestHandleEjectionControl) #pragma alloc_text(PAGE, RequestHandleEnableStreaming) #pragma alloc_text(PAGE, RequestHandleSendOpcInformation) #pragma alloc_text(PAGE, RequestHandleGetPerformance) #pragma alloc_text(PAGE, RequestHandleMcnSyncFakeIoctl) #pragma alloc_text(PAGE, RequestHandleLoadEjectMedia) #pragma alloc_text(PAGE, RequestHandleReserveRelease) #pragma alloc_text(PAGE, RequestHandlePersistentReserve) #pragma alloc_text(PAGE, DeviceHandleRawRead) #pragma alloc_text(PAGE, DeviceHandlePlayAudioMsf) #pragma alloc_text(PAGE, DeviceHandleReadQChannel) #pragma alloc_text(PAGE, ReadQChannel) #pragma alloc_text(PAGE, DeviceHandlePauseAudio) #pragma alloc_text(PAGE, DeviceHandleResumeAudio) #pragma alloc_text(PAGE, DeviceHandleSeekAudioMsf) #pragma alloc_text(PAGE, DeviceHandleStopAudio) #pragma alloc_text(PAGE, DeviceHandleGetSetVolume) #pragma alloc_text(PAGE, DeviceHandleReadDvdStructure) #pragma alloc_text(PAGE, ReadDvdStructure) #pragma alloc_text(PAGE, DeviceHandleDvdEndSession) #pragma alloc_text(PAGE, DeviceHandleDvdStartSessionReadKey) #pragma alloc_text(PAGE, DvdStartSessionReadKey) #pragma alloc_text(PAGE, DeviceHandleDvdSendKey) #pragma alloc_text(PAGE, DvdSendKey) #pragma alloc_text(PAGE, DeviceHandleSetReadAhead) #pragma alloc_text(PAGE, DeviceHandleSetSpeed) #pragma alloc_text(PAGE, RequestHandleExclusiveAccessQueryLockState) #pragma alloc_text(PAGE, RequestHandleExclusiveAccessLockDevice) #pragma alloc_text(PAGE, RequestHandleExclusiveAccessUnlockDevice) #pragma alloc_text(PAGE, RequestHandleScsiPassThrough) #pragma alloc_text(PAGE, RequestGetScsiPassThroughCdb) #pragma alloc_text(PAGE, GetConfigurationDataConversionTypeAllToTypeOne) #pragma alloc_text(PAGE, GetConfigurationDataSynthesize) #endif NTSTATUS RequestHandleUnknownIoctl( _In_ WDFDEVICE Device, _In_ WDFREQUEST Request ) /*++ Routine Description: All unknown IOCTLs will be forward to lower level driver. Arguments: Device - device object Request - request to be handled Return Value: NTSTATUS --*/ { NTSTATUS status = STATUS_UNSUCCESSFUL; PCDROM_DEVICE_EXTENSION deviceExtension = DeviceGetExtension(Device); PCDROM_REQUEST_CONTEXT requestContext = RequestGetContext(Request); BOOLEAN syncRequired = requestContext->SyncRequired; ULONG sendOptionsFlags = 0; BOOLEAN requestSent = FALSE; WdfRequestFormatRequestUsingCurrentType(Request); if (syncRequired) { sendOptionsFlags = WDF_REQUEST_SEND_OPTION_SYNCHRONOUS; } else { WdfRequestSetCompletionRoutine(Request, RequestDummyCompletionRoutine, NULL); } status = RequestSend(deviceExtension, Request, deviceExtension->IoTarget, sendOptionsFlags, &requestSent); if (requestSent) { if (syncRequired) { // the request needs to be completed here. RequestCompletion(deviceExtension, Request, status, WdfRequestGetInformation(Request)); } } else { // failed to send the request to IoTarget RequestCompletion(deviceExtension, Request, status, WdfRequestGetInformation(Request)); } return status; } _IRQL_requires_max_(APC_LEVEL) BOOLEAN DeviceIsPlayActive( _In_ WDFDEVICE Device ) /*++ Routine Description: This routine determines if the cd is currently playing music. Arguments: Device - Device object. Return Value: BOOLEAN - TRUE if the device is playing music. --*/ { NTSTATUS status = STATUS_SUCCESS; PCDROM_DEVICE_EXTENSION deviceExtension = DeviceGetExtension(Device); PSUB_Q_CURRENT_POSITION currentBuffer; size_t bytesRead = 0; PAGED_CODE (); // if we don't think it is playing audio, don't bother checking. if (!deviceExtension->DeviceAdditionalData.PlayActive) { return FALSE; } // Allocate the required memory NT_ASSERT(sizeof(SUB_Q_CURRENT_POSITION) >= sizeof(CDROM_SUB_Q_DATA_FORMAT)); currentBuffer = ExAllocatePoolWithTag(NonPagedPoolNxCacheAligned, sizeof(SUB_Q_CURRENT_POSITION), CDROM_TAG_PLAY_ACTIVE); if (currentBuffer == NULL) { return FALSE; } // set the options in the output buffer format ((PCDROM_SUB_Q_DATA_FORMAT) currentBuffer)->Format = IOCTL_CDROM_CURRENT_POSITION; ((PCDROM_SUB_Q_DATA_FORMAT) currentBuffer)->Track = 0; // Send SCSI command to read Q Channel information. status = ReadQChannel(deviceExtension, NULL, currentBuffer, sizeof(CDROM_SUB_Q_DATA_FORMAT), currentBuffer, sizeof(SUB_Q_CURRENT_POSITION), &bytesRead); if (!NT_SUCCESS(status)) { ExFreePool(currentBuffer); return FALSE; } // update the playactive flag appropriately if (currentBuffer->Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) { deviceExtension->DeviceAdditionalData.PlayActive = TRUE; } else { deviceExtension->DeviceAdditionalData.PlayActive = FALSE; } ExFreePool(currentBuffer); return deviceExtension->DeviceAdditionalData.PlayActive; } NTSTATUS RequestHandleGetInquiryData( _In_ PCDROM_DEVICE_EXTENSION DeviceExtension, _In_ WDFREQUEST Request,