/*++
Private so we can later expose to someone wanting to use a preallocated buffer
--*/
NTSTATUS
NTAPI
CdRompGetConfiguration(
IN PDEVICE_OBJECT Fdo,
IN PGET_CONFIGURATION_HEADER Buffer,
IN ULONG BufferSize,
OUT PULONG ValidBytes,
IN FEATURE_NUMBER StartingFeature,
IN ULONG RequestedType
)
{
PFUNCTIONAL_DEVICE_EXTENSION fdoExtension;
PCDROM_DATA cdData;
SCSI_REQUEST_BLOCK srb;
PCDB cdb;
ULONG_PTR returned;
NTSTATUS status;
PAGED_CODE();
ASSERT(Buffer);
ASSERT(ValidBytes);
*ValidBytes = 0;
returned = 0;
RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
RtlZeroMemory(Buffer, BufferSize);
fdoExtension = Fdo->DeviceExtension;
cdData = (PCDROM_DATA)(fdoExtension->CommonExtension.DriverData);
if (TEST_FLAG(cdData->HackFlags, CDROM_HACK_BAD_GET_CONFIG_SUPPORT)) {
return STATUS_INVALID_DEVICE_REQUEST;
}
srb.TimeOutValue = CDROM_GET_CONFIGURATION_TIMEOUT;
srb.CdbLength = 10;
cdb = (PCDB)srb.Cdb;
cdb->GET_CONFIGURATION.OperationCode = SCSIOP_GET_CONFIGURATION;
cdb->GET_CONFIGURATION.RequestType = (UCHAR)RequestedType;
cdb->GET_CONFIGURATION.StartingFeature[0] = (UCHAR)(StartingFeature >> 8);
cdb->GET_CONFIGURATION.StartingFeature[1] = (UCHAR)(StartingFeature & 0xff);
cdb->GET_CONFIGURATION.AllocationLength[0] = (UCHAR)(BufferSize >> 8);
cdb->GET_CONFIGURATION.AllocationLength[1] = (UCHAR)(BufferSize & 0xff);
status = ClassSendSrbSynchronous(Fdo, &srb, Buffer,
BufferSize, FALSE);
returned = srb.DataTransferLength;
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdromGetConfiguration: Status was %x\n", status));
if (NT_SUCCESS(status) || status == STATUS_BUFFER_OVERFLOW) {
//
// if returned more than can be stored in a ULONG, return false
//
if (returned > (ULONG)(-1)) {
return STATUS_UNSUCCESSFUL;
}
ASSERT(returned <= BufferSize);
*ValidBytes = (ULONG)returned;
return STATUS_SUCCESS;
} else {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdromGetConfiguration: failed %x\n", status));
return status;
}
ASSERT(FALSE);
return STATUS_UNSUCCESSFUL;
}
/*++
NOT DOCUMENTED YET - may be called at up to DISPATCH_LEVEL
if memory is non-paged
--*/
PVOID
NTAPI
CdRomFindFeaturePage(
IN PGET_CONFIGURATION_HEADER FeatureBuffer,
IN ULONG Length,
IN FEATURE_NUMBER Feature
)
{
PUCHAR buffer;
PUCHAR limit;
if (Length < sizeof(GET_CONFIGURATION_HEADER) + sizeof(FEATURE_HEADER)) {
return NULL;
}
//
// set limit to point to first illegal address
//
limit = (PUCHAR)FeatureBuffer;
limit += Length;
//
// set buffer to point to first page
//
buffer = FeatureBuffer->Data;
//
// loop through each page until we find the requested one, or
// until it's not safe to access the entire feature header
// (if equal, have exactly enough for the feature header)
//
while (buffer + sizeof(FEATURE_HEADER) <= limit) {
PFEATURE_HEADER header = (PFEATURE_HEADER)buffer;
FEATURE_NUMBER thisFeature;
thisFeature =
(header->FeatureCode[0] << 8) |
(header->FeatureCode[1]);
if (thisFeature == Feature) {
PUCHAR temp;
//
// if don't have enough memory to safely access all the feature
// information, return NULL
//
temp = buffer;
temp += sizeof(FEATURE_HEADER);
temp += header->AdditionalLength;
if (temp > limit) {
//
// this means the transfer was cut-off, an insufficiently
// small buffer was given, or other arbitrary error. since
// it's not safe to view the amount of data (even though
// the header is safe) in this feature, pretend it wasn't
// transferred at all...
//
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"Feature %x exists, but not safe to access all its "
"data. returning NULL\n", Feature));
return NULL;
} else {
return buffer;
}
}
if (header->AdditionalLength % 4) {
ASSERT(!"Feature page AdditionalLength field must be integral multiple of 4!\n");
return NULL;
}
buffer += sizeof(FEATURE_HEADER);
buffer += header->AdditionalLength;
}
return NULL;
}
VOID
NTAPI
CdRompFlushDelayedList(
IN PDEVICE_OBJECT Fdo,
IN PCDROM_MMC_EXTENSION MmcData,
IN NTSTATUS Status,
IN BOOLEAN CalledFromWorkItem
)
{
PSINGLE_LIST_ENTRY list;
PIRP irp;
// NOTE - REF #0002
//
// need to set the new state first to prevent deadlocks.
// this is only done from the workitem, to prevent any
// edge cases where we'd "lose" the UpdateRequired
//
// then, must ignore the state, since it's not guaranteed to
// be the same any longer. the only thing left is to handle
// all the delayed irps by flushing the queue and sending them
// back onto the StartIo queue for the device.
//
if (CalledFromWorkItem) {
LONG oldState;
LONG newState;
if (NT_SUCCESS(Status)) {
newState = CdromMmcUpdateComplete;
} else {
newState = CdromMmcUpdateRequired;
}
oldState = InterlockedCompareExchange(&MmcData->UpdateState,
newState,
CdromMmcUpdateStarted);
ASSERT(oldState == CdromMmcUpdateStarted);
} else {
//
// just flushing the queue if not called from the workitem,
// and we don't want to ever fail the queue in those cases.
//
ASSERT(NT_SUCCESS(Status));
}
list = ExInterlockedFlushSList(&MmcData->DelayedIrps);
// if this assert fires, it means that we have started
// a workitem when the previous workitem took the delayed
// irp. if this happens, then the logic in HACKHACK #0002
// is either flawed or the rules set within are not being
// followed. this would require investigation.
ASSERT(list != NULL);
//
// now either succeed or fail all the delayed irps, according
// to the update status.
//
while (list != NULL) {
irp = (PIRP)( ((PUCHAR)list) -
FIELD_OFFSET(IRP, Tail.Overlay.DriverContext[0])
);
list = list->Next;
irp->Tail.Overlay.DriverContext[0] = 0;
irp->Tail.Overlay.DriverContext[1] = 0;
irp->Tail.Overlay.DriverContext[2] = 0;
irp->Tail.Overlay.DriverContext[3] = 0;
if (NT_SUCCESS(Status)) {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => Re-sending delayed irp %p\n",
irp));
IoStartPacket(Fdo, irp, NULL, NULL);
} else {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => Failing delayed irp %p with "
" status %x\n", irp, Status));
irp->IoStatus.Information = 0;
irp->IoStatus.Status = Status;
ClassReleaseRemoveLock(Fdo, irp);
IoCompleteRequest(irp, IO_CD_ROM_INCREMENT);
}
} // while (list)
return;
}
RPSTATUS
EventCheck(
IN PUNICODE_STRING pusCriminal,
IN PUNICODE_STRING pusVictim,
IN PEPROCESS pCriminalEproc,
IN PEPROCESS pVictimEproc,
IN ULONG ulCrimeType,
IN ULONG_PTR ulpExtraInfo
)
/*++
Routine Description:
处理检测到的违规操作
Arguments:
pusCriminal - 违规者名字
pusVictim - 受害者名字
pCriminalEproc - 违规者进程
pVictimEproc - 受害者进程
ulCrimeType - 违规类型
ulpExtraInfo - 额外信息，根据违规类型的不同而不同
Return Value:
允许放行返回 RP_STATUS_OK，拒绝该操作返回 RP_STATUS_ERR
Author:
Fypher
--*/
{
PEVENTDATA pEvtData;
ULONG ulJudgment;
RPSTATUS RpStatus = RP_STATUS_NOT_CLEAR;
PAGED_CODE();
if (!g_pProtected) // no ring3
return RP_STATUS_OK;
if (!IsMajorProtected(ulCrimeType)) // protect off
return RP_STATUS_OK;
if (IsInWhiteBlackHashTable(pusCriminal, CRIME_MAJOR_ALL, NODE_TYPE_WHITE)) // Super White List
return RP_STATUS_OK;
if (IsInWhiteBlackHashTable(pusCriminal, ulCrimeType, NODE_TYPE_WHITE)) // white list
RpStatus = RP_STATUS_OK;
else if (IsInWhiteBlackHashTable(pusCriminal, ulCrimeType, NODE_TYPE_BLACK)) // black list
RpStatus = RP_STATUS_ERR;
if (pCriminalEproc && pCriminalEproc == pVictimEproc) // Self xx
return RP_STATUS_OK;
if (g_ulEventDataCount > MAX_EVENT_IN_LIST) { // too many
KdPrintEx((DPFLTR_DEFAULT_ID, DPFLTR_ERROR_LEVEL, "EventCheck! g_ulEventDataCount: %d\r\n", g_ulEventDataCount));
return RP_STATUS_ERR;
}
switch (ulCrimeType & CRIME_MAJOR_MASK) {
//
// CRIME_MAJOR_FILE
//
case CRIME_MAJOR_FILE:
if (!IsInWhiteBlackHashTable(pusVictim, CRIME_MAJOR_FILE, NODE_TYPE_BLACK))
return RP_STATUS_OK;
break;
//
// CRIME_MAJOR_PROC
//
case CRIME_MAJOR_PROC:
if (pVictimEproc == g_pProtected) // self protect
return RP_STATUS_ERR;
// only for self protect
if (ulCrimeType == CRIME_MINOR_NtOpenProcess ||
ulCrimeType == CRIME_MINOR_NtOpenThread ||
ulCrimeType == CRIME_MINOR_NtAssignProcessToJobObject)
{
return RP_STATUS_OK;
}
break;
//
// CRIME_MAJOR_REG
//
case CRIME_MAJOR_REG:
break;
//
// CRIME_MAJOR_SYS
//
case CRIME_MAJOR_SYS:
if (ulCrimeType == CRIME_MINOR_NtDuplicateObject)
{
if (g_pProtected == (PEPROCESS)ulpExtraInfo) { // selfprotect
return RP_STATUS_ERR;
}
}
else if (ulCrimeType == CRIME_MINOR_NtOpenSection)
{
if (/*g_pPhysicalMemoryObj && */g_pPhysicalMemoryObj != (PVOID)ulpExtraInfo)
return RP_STATUS_OK;
}
break;
default:
KdPrintEx(( DPFLTR_DEFAULT_ID, DPFLTR_ERROR_LEVEL,
"EventCheck! How did I get here! %x\r\n", ulCrimeType
));
break;
}
if (RpStatus != RP_STATUS_NOT_CLEAR)
return RpStatus;
pEvtData = BuildEventData(pusCriminal, pusVictim, pCriminalEproc, pVictimEproc, ulCrimeType, ulpExtraInfo);
if (!pEvtData)
return RP_STATUS_ERR;
PushEvent(pEvtData);
KeWaitForSingleObject(&pEvtData->evt, Executive, KernelMode, FALSE, NULL);
ulJudgment = pEvtData->ulJudgment;
DestroyEventData(pEvtData);
if (ulJudgment & JUDGMENT_ACCEPT) {
if (ulJudgment & JUDGMENT_ALWAYS) {
AddToWhiteBlackHashTable(pusCriminal, ulCrimeType, NODE_TYPE_WHITE);
}
return RP_STATUS_OK;
} else if (ulJudgment & JUDGMENT_REFUSE) {
if (ulJudgment & JUDGMENT_ALWAYS) {
AddToWhiteBlackHashTable(pusCriminal, ulCrimeType, NODE_TYPE_BLACK);
}
return RP_STATUS_ERR;
}
// never reaches here
return RP_STATUS_ERR;
}
VOID
NTAPI
CdRomUpdateMmcDriveCapabilities(
IN PDEVICE_OBJECT Fdo,
IN PVOID Context
)
{
PFUNCTIONAL_DEVICE_EXTENSION fdoExtension = Fdo->DeviceExtension;
PCOMMON_DEVICE_EXTENSION commonExtension = Fdo->DeviceExtension;
PCDROM_DATA cdData = fdoExtension->CommonExtension.DriverData;
PCDROM_MMC_EXTENSION mmcData = &(cdData->Mmc);
PIO_STACK_LOCATION thisStack = IoGetCurrentIrpStackLocation(mmcData->CapabilitiesIrp);
PSCSI_REQUEST_BLOCK srb = &(mmcData->CapabilitiesSrb);
NTSTATUS status;
ASSERT(Context == NULL);
//
// NOTE: a remove lock is unnecessary, since the delayed irp
// will have said lock held for itself, preventing a remove.
//
CdRomPrepareUpdateCapabilitiesIrp(Fdo);
ASSERT(thisStack->Parameters.Others.Argument1 == Fdo);
ASSERT(thisStack->Parameters.Others.Argument2 == mmcData->CapabilitiesBuffer);
ASSERT(thisStack->Parameters.Others.Argument3 == &(mmcData->CapabilitiesSrb));
mmcData->WriteAllowed = FALSE; // default to read-only
//
// set max retries, and also allow volume verify override based on
// original (delayed) irp
//
thisStack->Parameters.Others.Argument4 = (PVOID)MAXIMUM_RETRIES;
//
// send to self... note that SL_OVERRIDE_VERIFY_VOLUME is not required,
// as this is IRP_MJ_INTERNAL_DEVICE_CONTROL
//
IoCallDriver(commonExtension->LowerDeviceObject, mmcData->CapabilitiesIrp);
KeWaitForSingleObject(&mmcData->CapabilitiesEvent,
Executive, KernelMode, FALSE, NULL);
status = mmcData->CapabilitiesIrp->IoStatus.Status;
if (!NT_SUCCESS(status)) {
goto FinishDriveUpdate;
}
//
// we've updated the feature set, so update whether or not reads and writes
// are allowed or not.
//
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => Succeeded "
"--------------------"
"--------------------\n"));
/*++
NOTE: It is important to only use srb->DataTransferLength worth
of data at this point, since the bufferSize is what is
*available* to use, not what was *actually* used.
--*/
#if DBG
CdRompPrintAllFeaturePages(mmcData->CapabilitiesBuffer,
srb->DataTransferLength);
#endif // DBG
//
// update whether or not writes are allowed. this is currently defined
// as requiring TargetDefectManagement and RandomWritable features
//
{
PFEATURE_HEADER defectHeader;
PFEATURE_HEADER writableHeader;
defectHeader = CdRomFindFeaturePage(mmcData->CapabilitiesBuffer,
srb->DataTransferLength,
FeatureDefectManagement);
writableHeader = CdRomFindFeaturePage(mmcData->CapabilitiesBuffer,
srb->DataTransferLength,
FeatureRandomWritable);
if ((defectHeader != NULL) && (writableHeader != NULL) &&
(defectHeader->Current) && (writableHeader->Current)) {
//
// this should be the *ONLY* place writes are set to allowed
//
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => Writes *allowed*\n"));
mmcData->WriteAllowed = TRUE;
} else {
if (defectHeader == NULL) {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => No writes - %s = %s\n",
"defect management", "DNE"));
} else {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => No writes - %s = %s\n",
"defect management", "Not Current"));
}
if (writableHeader == NULL) {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => No writes - %s = %s\n",
"sector writable", "DNE"));
} else {
KdPrintEx((DPFLTR_CDROM_ID, CdromDebugFeatures,
"CdRomUpdateMmc => No writes - %s = %s\n",
"sector writable", "Not Current"));
}
} // end of feature checking
} // end of check for writability
//
// update the cached partition table information
//
// NOTE: THIS WILL CURRENTLY CAUSE A DEADLOCK!
//
// ISSUE-2000/06/20-henrygab - partition support not implemented
// IoReadPartitionTable must be done
// at PASSIVE level, requiring a thread
// or worker item or other such method.
//
#if 0
status = IoReadPartitionTable(Fdo, 1 << fdoExtension->SectorShift,
TRUE, &mmcData->PartitionList);
if (!NT_SUCCESS(status)) {
goto FinishDriveUpdate;
}
#endif
status = STATUS_SUCCESS;
FinishDriveUpdate:
CdRompFlushDelayedList(Fdo, mmcData, status, TRUE);
return;
}
//
// Io events callbacks.
//
VOID
MarsEvtIoDeviceControl(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
/*++
Routine Description:
This event is called when the framework receives IRP_MJ_DEVICE_CONTROL
requests from the system.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Handle to a framework request object.
OutputBufferLength - length of the request's output buffer,
if an output buffer is available.
InputBufferLength - length of the request's input buffer,
if an input buffer is available.
IoControlCode - the driver-defined or system-defined I/O control code
(IOCTL) that is associated with the request.
Return Value:
VOID
--*/
{
PFDO_DATA fdoData = NULL;
WDFDEVICE device;
NTSTATUS status = STATUS_SUCCESS;
PVOID inBuffer = NULL, outBuffer = NULL;
size_t bytesReturned = 0;
size_t size = 0;
PAGED_CODE();
//DbgPrint(("Started MarsEvtIODeviceControl\n"));
device = WdfIoQueueGetDevice(Queue);
fdoData = MarsFdoGetData(device); //Gets device context
//
// Get the ioctl input & output buffers
//
if (InputBufferLength != 0) {
status = WdfRequestRetrieveInputBuffer(Request,
InputBufferLength,
&inBuffer,
&size);
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return;
}
}
if (OutputBufferLength != 0) {
status = WdfRequestRetrieveOutputBuffer(Request,
OutputBufferLength,
&outBuffer,
&size);
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return;
}
}
switch (IoControlCode) {
case IOCTL_MARS_GET_DRIVER_VERSION:
if (OutputBufferLength < sizeof(USHORT)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
*(PUSHORT)outBuffer = fdoData->DriverVersion;
bytesReturned = sizeof(USHORT);
break;
case IOCTL_MARS_GET_FUNCTION_NUMBER:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
*(PUCHAR)outBuffer = fdoData->FunctionNumber;
bytesReturned = sizeof(UCHAR);
break;
case IOCTL_MARS_GET_FUNCTION_FOCUS:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
*(PUCHAR)outBuffer = fdoData->FunctionFocus;
bytesReturned = sizeof(UCHAR);
break;
case IOCTL_MARS_SET_FUNCTION_FOCUS:
if (InputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
fdoData->FunctionFocus = *(PUCHAR)inBuffer;
break;
//---------------------------------------------------
//
// SDP_BUS_WIDTH
//
//---------------------------------------------------
case IOCTL_MARS_GET_BUS_WIDTH:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_BUS_WIDTH,
outBuffer, sizeof(UCHAR));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(UCHAR);
}
break;
case IOCTL_MARS_SET_BUS_WIDTH:
if (InputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_BUS_WIDTH,
inBuffer, sizeof(UCHAR));
break;
//---------------------------------------------------
//
// SDP_BUS_CLOCK
//
//---------------------------------------------------
case IOCTL_MARS_GET_BUS_CLOCK:
if (OutputBufferLength < sizeof(ULONG)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_BUS_CLOCK,
outBuffer, sizeof(ULONG));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(ULONG);
}
break;
case IOCTL_MARS_SET_BUS_CLOCK:
if (InputBufferLength < sizeof(ULONG)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_BUS_CLOCK,
inBuffer, sizeof(ULONG));
break;
//---------------------------------------------------
//
// SDP_FUNCTION_BLOCK_LENGTH
//
//---------------------------------------------------
case IOCTL_MARS_GET_BLOCKLEN:
if (OutputBufferLength < sizeof(USHORT)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_FUNCTION_BLOCK_LENGTH,
outBuffer, sizeof(SHORT));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(USHORT);
}
break;
case IOCTL_MARS_SET_BLOCKLEN:
if (InputBufferLength < sizeof(USHORT)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_FUNCTION_BLOCK_LENGTH,
inBuffer, sizeof(SHORT));
break;
//---------------------------------------------------
//
// SDP_FN0_BLOCK_LENGTH
//
//---------------------------------------------------
case IOCTL_MARS_GET_FN0_BLOCKLEN:
if (OutputBufferLength < sizeof(USHORT)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_FN0_BLOCK_LENGTH,
outBuffer, sizeof(SHORT));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(USHORT);
}
break;
case IOCTL_MARS_SET_FN0_BLOCKLEN:
if (InputBufferLength < sizeof(USHORT)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_FN0_BLOCK_LENGTH,
inBuffer, sizeof(SHORT));
break;
//---------------------------------------------------
//
// SDP_BUS_INTERFACE_CONTROL
//
//---------------------------------------------------
case IOCTL_MARS_GET_BUS_INTERFACE_CONTROL:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_BUS_INTERFACE_CONTROL,
outBuffer, sizeof(UCHAR));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(UCHAR);
}
break;
case IOCTL_MARS_SET_BUS_INTERFACE_CONTROL:
if (InputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_BUS_INTERFACE_CONTROL,
inBuffer, sizeof(UCHAR));
break;
//---------------------------------------------------
//
// SDP_FUNCTION_INT_ENABLE
//
//---------------------------------------------------
case IOCTL_MARS_GET_INT_ENABLE:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioGetProperty(device, SDP_FUNCTION_INT_ENABLE,
outBuffer, sizeof(UCHAR));
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(UCHAR);
}
break;
case IOCTL_MARS_SET_INT_ENABLE:
if (InputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioSetProperty(device, SDP_FUNCTION_INT_ENABLE,
inBuffer, sizeof(UCHAR));
break;
//---------------------------------------------------
//
// READ/WRITE BYTE
//
//---------------------------------------------------
case IOCTL_MARS_READ_BYTE:
if ((InputBufferLength < sizeof(ULONG)) || (OutputBufferLength < sizeof(UCHAR))) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
status = SdioReadWriteByte(device,
fdoData->FunctionFocus,
(PUCHAR)outBuffer,
*(PULONG)inBuffer,
FALSE);
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(UCHAR);
}
break;
case IOCTL_MARS_WRITE_BYTE:
if ((InputBufferLength < sizeof(ULONG)*2)) {//||(OutputBufferLength < sizeof(UCHAR))) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
// BUGBUG: check for output buffer length
status = SdioReadWriteByte(device,
fdoData->FunctionFocus,
(PUCHAR)(&((PULONG)inBuffer)[1]),
*(PULONG)inBuffer,
TRUE);
// BUGBUG: Return the right size
if (NT_SUCCESS(status)) {
bytesReturned = sizeof(UCHAR);
}
break;
//---------------------------------------------------
//
// Mode settings
//
//---------------------------------------------------
case IOCTL_MARS_SET_TRANSFER_MODE:
bytesReturned = 0;
break;
case IOCTL_MARS_TOGGLE_MODE:
if (OutputBufferLength < sizeof(UCHAR)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
if (fdoData->DriverVersion < SDBUS_DRIVER_VERSION_2) {
status = STATUS_INVALID_DEVICE_REQUEST;
break;
}
fdoData->BlockMode = fdoData->BlockMode ? 0 : 1;
*(PUCHAR)outBuffer = fdoData->BlockMode;
bytesReturned = sizeof(UCHAR);
break;
case IOCTL_MARS_TOGGLE_NOISY:
if (OutputBufferLength < sizeof(BOOLEAN)) {
status = STATUS_BUFFER_TOO_SMALL;
break;
}
NoisyMode = NoisyMode ? 0 : 1;
*(PBOOLEAN)outBuffer = NoisyMode;
bytesReturned = sizeof(BOOLEAN);
if (NoisyMode) {
KdPrintEx((DPFLTR_IHVDRIVER_ID, DPFLTR_ERROR_LEVEL, "MARS: Noisy mode\n"));
} else {
KdPrintEx((DPFLTR_IHVDRIVER_ID, DPFLTR_ERROR_LEVEL, "MARS: Quiet mode\n"));
}
break;
default:
NT_ASSERTMSG("Invalid IOCTL request\n", FALSE);
status = STATUS_INVALID_DEVICE_REQUEST;
}
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
return;
}
VOID TpmEvtIoDeviceControl (
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
{
NTSTATUS status;
PTPM_CONTEXT TpmContext;
WDFDEVICE Device;
PAGED_CODE();
Device = WdfIoQueueGetDevice(Queue);
TpmContext = GetTpmContext(Device);
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_WARNING_LEVEL,
"TpmEvtIoDeviceControl called - IoControlCode: 0x%x \n",
IoControlCode));
switch(IoControlCode)
{
case TPM_CANCEL_COMMAND:
status = TpmAbort(TpmContext,StAvailable,StAborting,IdAbort);
break;
case TPM_TRANSMIT_COMMAND:
status = TpmHandleTransmit(Device,
Request,
OutputBufferLength,
InputBufferLength);
break;
case TPM_SUMBIT_ACPI_COMMAND:
if(TpmContext->TpmState != StAvailable)
{
status = STATUS_CANCELLED;
WdfRequestComplete( Request, status);
return;
}
status = TpmHandleSubmitAcpiCommand(Device,
Request,
OutputBufferLength,
InputBufferLength);
break;
default:
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmEvtIoDeviceControl: Invalid request 0x%x\n",IoControlCode));
status = STATUS_INVALID_DEVICE_REQUEST;
break;
}
WdfRequestComplete( Request, status);
}
NTSTATUS
TpmEvtDevicePrepareHardware (
WDFDEVICE Device,
WDFCMRESLIST Resources,
WDFCMRESLIST ResourcesTranslated
)
{
NTSTATUS status;
ULONG ListCount = 0;
ULONG MemLen = 0;
// ULONG NumberOfBytes;
PTPM_CONTEXT TpmContext;
PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDesc;
ULONG ListIndex;
PHYSICAL_ADDRESS MemoryAddr;
BOOLEAN bMemAddr = FALSE;
PAGED_CODE();
TpmContext = GetTpmContext(Device);
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmEvtDevicePrepareHardware (raw count = %u, trans count = %u)\n",
WdfCmResourceListGetCount(Resources),
WdfCmResourceListGetCount(ResourcesTranslated)));
ListIndex = 0;
ListCount = WdfCmResourceListGetCount(ResourcesTranslated);
if(ListCount)
{
while(ListIndex < ListCount)
{
ResourceDesc = WdfCmResourceListGetDescriptor(ResourcesTranslated,ListIndex);
if(!ResourceDesc) break;
if(ResourceDesc->Type == CmResourceTypePort)
{
if(TpmContext->UsePortBasedIO)
{
TpmContext->PortAddr = (PUCHAR)ResourceDesc->u.Port.Start.u.LowPart;
}
}
else if(ResourceDesc->Type == CmResourceTypeMemory && TpmContext->UsePortBasedIO == 0)
{
MemoryAddr.u.LowPart = ResourceDesc->u.Memory.Start.u.LowPart;
MemoryAddr.u.HighPart = ResourceDesc->u.Memory.Start.u.HighPart;
MemLen = ResourceDesc->u.Memory.Length;
bMemAddr = TRUE;
}
ListIndex++;
}
do
{
if(ListIndex < WdfCmResourceListGetCount( ResourcesTranslated))
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"WdfCmResourceListGetDescriptor failed.\n"));
status = STATUS_DEVICE_CONFIGURATION_ERROR; // 0xC0000182;
break;
}
if(TpmContext->UsePortBasedIO)
{
if(!TpmContext->PortAddr)
{
if(TpmContext->UsePortBasedIO != TRUE)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_WARNING_LEVEL,
"Port I/O resources required but not allocated for Vendor index %u",
TpmContext->UsePortBasedIO));
status = STATUS_DEVICE_CONFIGURATION_ERROR; // 0xC0000182;
goto Exit;
}
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_WARNING_LEVEL,
"No resources allocated for Port-based I/O."));
status = STATUS_DEVICE_CONFIGURATION_ERROR;
break;
}
}
else
{
if(!bMemAddr)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"Physical address resource not provided via ACPI; using default address and size.\n"));
MemLen = 1024;
MemoryAddr.u.LowPart = TPM_DEFAULT_ADDRESS;
MemoryAddr.u.HighPart = 0;
}
if(MemLen < 1024)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"Physical address length provided is too small (%d)\n",MemLen));
status = STATUS_DEVICE_CONFIGURATION_ERROR; //0xC0000182;
break;
}
if(MemoryAddr.u.LowPart != TPM_DEFAULT_ADDRESS || MemoryAddr.u.HighPart)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"Physical address provided is incorrect: 0x%08x`%08x\n",MemoryAddr.u.HighPart,MemoryAddr.u.LowPart));
status = STATUS_DEVICE_CONFIGURATION_ERROR; //0xC0000182;
break;
}
TpmContext->MemAddr = MmMapIoSpace(MemoryAddr,MemLen,MmNonCached);
if(!TpmContext->MemAddr)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"MmMapIoSpace couldn't map the TPM device: 0x%x.\n", MemoryAddr.u.LowPart));
status = STATUS_INSUFFICIENT_RESOURCES; //0xC000009A;
break;
}
TpmContext->MemLen = MemLen;
}
status = TpmSetDefaultTimingValues(TpmContext);
if(!NT_SUCCESS(status))
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmSetDefaultTimingValues failed with status 0x%x",status));
break;
}
if(TpmContext->SkipInitCommands)
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"Skipping initialization commands\n"));
}
else
{
TpmGetTimeoutInfo(TpmContext);
TpmGetDurations(TpmContext);
// 获取硬件厂商信息
TpmGetManufacturer(TpmContext);
}
status = TpmVerifyAccessRegister(TpmContext,TpmINB(TpmContext,0),0);
if(!NT_SUCCESS(status))
{
break;
}
#if _NT_TARGET_VERSION >= 0x601
status = TpmEntropyInit(TpmContext);
#endif
} while(FALSE);
}
else
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"Physical address resource not provided via ACPI; using default address and size.\n"));
}
Exit:
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmEvtDevicePrepareHardware exited with Status code 0x%x\n",status));
return status;
}
NTSTATUS
TpmEvtDeviceAdd(
IN WDFDRIVER Driver,
IN PWDFDEVICE_INIT DeviceInit
)
{
NTSTATUS status = STATUS_SUCCESS;
WDF_PNPPOWER_EVENT_CALLBACKS PnpPowerEventCallbacks;
WDF_OBJECT_ATTRIBUTES DeviceAttributes;
WDFDEVICE device;
PTPM_CONTEXT TpmContext;
WDF_IO_QUEUE_CONFIG IoQueueConfig;
WDFQUEUE hQueue;
WDF_QUERY_INTERFACE_CONFIG InterfaceConfig;
TPM_INTERFACE_STANDARD TpmInterface;
WDF_DEVICE_POWER_CAPABILITIES PowerCaps;
PAGED_CODE();
UNREFERENCED_PARAMETER( Driver );
RtlZeroMemory(&PnpPowerEventCallbacks,sizeof(PnpPowerEventCallbacks));
RtlZeroMemory(&PowerCaps,sizeof(PowerCaps));
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmEvtDeviceAdd routine PDO: %p (%p)\n",
WdfDriverWdmGetDriverObject(Driver)));
//
// Zero out the PnpPowerCallbacks structure.
//
WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&PnpPowerEventCallbacks);
//
// These two callbacks set up and tear down hardware state that must be
// done every time the device moves in and out of the D0-working state.
//
PnpPowerEventCallbacks.EvtDeviceD0Entry = TpmEvtDeviceD0Entry;
PnpPowerEventCallbacks.EvtDeviceD0Exit = TpmEvtDeviceD0Exit;
//
// Set Callbacks for any of the functions we are interested in.
// If no callback is set, Framework will take the default action
// by itself.
//
PnpPowerEventCallbacks.EvtDevicePrepareHardware = TpmEvtDevicePrepareHardware;
PnpPowerEventCallbacks.EvtDeviceReleaseHardware = TpmEvtDeviceReleaseHardware;
WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit,&PnpPowerEventCallbacks);
//
// Specify the context type and size for the device we are about to create.
//
RtlZeroMemory(&DeviceAttributes,sizeof(DeviceAttributes));
WDF_OBJECT_ATTRIBUTES_SET_CONTEXT_TYPE(&DeviceAttributes, TPM_CONTEXT);
DeviceAttributes.Size = sizeof(WDF_OBJECT_ATTRIBUTES);
DeviceAttributes.SynchronizationScope = WdfSynchronizationScopeInheritFromParent;
DeviceAttributes.ExecutionLevel = WdfExecutionLevelPassive;
status = WdfDeviceCreate(&DeviceInit,&DeviceAttributes,&device);
if(NT_SUCCESS(status))
{
TpmContext = GetTpmContext(device);
RtlZeroMemory(TpmContext,sizeof(TPM_CONTEXT));
TpmContext->Device = device;
TpmContext->AccessRegister = FALSE;
KeInitializeSpinLock(&TpmContext->SpinLock);
TpmContext->TpmState = StSuspend;
TpmInitStateTable();
KeInitializeEvent(&TpmContext->Event,NotificationEvent,TRUE);
status = WdfDeviceCreateDeviceInterface(device,&GUID_DEVINTERFACE_TPM,NULL);
if(NT_SUCCESS(status))
{
WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(
&IoQueueConfig,
WdfIoQueueDispatchParallel
);
IoQueueConfig.EvtIoDeviceControl = TpmEvtIoDeviceControl;
status = WdfIoQueueCreate(
device,
&IoQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&hQueue
);
if(NT_SUCCESS(status))
{
WDF_DEVICE_POWER_CAPABILITIES_INIT(&PowerCaps);
WdfDeviceSetPowerCapabilities(device,&PowerCaps);
//
TpmGetRegistryFlags(device,TpmContext);
//
RtlZeroMemory(&TpmInterface,sizeof(TpmInterface));
TpmInterface.InterfaceHeader.Size = sizeof(TpmInterface);
TpmInterface.InterfaceHeader.Version = 1;
TpmInterface.InterfaceHeader.Context = (PVOID)TpmContext;
TpmInterface.InterfaceHeader.InterfaceReference = WdfDeviceInterfaceReferenceNoOp;
TpmInterface.InterfaceHeader.InterfaceDereference = WdfDeviceInterfaceDereferenceNoOp;
TpmInterface.pfn_TpmSetMorBitState = TpmSetMorBitState;
//
// Initialize the InterfaceConfig structure.
//
WDF_QUERY_INTERFACE_CONFIG_INIT(
&InterfaceConfig,
(PINTERFACE)&TpmInterface,
&GUID_TPM_INTERFACE_STANDARD,
NULL
);
//
// Create the interface.
//
status = WdfDeviceAddQueryInterface(
device,
&InterfaceConfig
);
if(!NT_SUCCESS(status))
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"WdfDeviceAddQueryInterface failed with NTSTATUS 0x%x\n",status));
}
}
else
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"WdfIoQueueCreate failed with Status code 0x%x\n",status));
}
}
else
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"WdfDeviceCreateDeviceInterface failed with Status code 0x%x\n",status));
}
}
else
{
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"WdfDeviceCreate failed with Status code 0x%x\n",status));
}
KdPrintEx((DPFLTR_PNPMEM_ID, DPFLTR_INFO_LEVEL,
"TpmEvtDeviceAdd exited with Status code 0x%x\n",status));
return status;
}
VOID EvtDriverUnload(_In_ WDFDRIVER DriverObject) {
DriverObject;
KdPrintEx((DPFLTR_IHVDRIVER_ID, DPFLTR_INFO_LEVEL, "Driver Unloaded\n"));
}
