+++ /dev/null
-/*
- * PROJECT: ReactOS Drivers
- * COPYRIGHT: See COPYING in the top level directory
- * PURPOSE: Kernel Security Support Provider Interface Driver
- *
- * PROGRAMMERS: Timo Kreuzer (timo.kreuzer@reactos.org)
- */
-
-/* INCLUDES *******************************************************************/
-
-#include "ksecdd.h"
-#include <ksecioctl.h>
-
-#define NDEBUG
-#include <debug.h>
-
-
-/* FUNCTIONS ******************************************************************/
-
-static
-NTSTATUS
-KsecQueryFileInformation(
- PVOID InfoBuffer,
- FILE_INFORMATION_CLASS FileInformationClass,
- PSIZE_T BufferLength)
-{
- PFILE_STANDARD_INFORMATION StandardInformation;
-
- /* Only FileStandardInformation is supported */
- if (FileInformationClass != FileStandardInformation)
- {
- return STATUS_INVALID_INFO_CLASS;
- }
-
- /* Validate buffer size */
- if (*BufferLength < sizeof(FILE_STANDARD_INFORMATION))
- {
- *BufferLength = sizeof(FILE_STANDARD_INFORMATION);
- return STATUS_INFO_LENGTH_MISMATCH;
- }
-
- /* Fill the structure */
- StandardInformation = (PFILE_STANDARD_INFORMATION)InfoBuffer;
- StandardInformation->AllocationSize.QuadPart = 0;
- StandardInformation->EndOfFile.QuadPart = 0;
- StandardInformation->NumberOfLinks = 1;
- StandardInformation->DeletePending = FALSE;
- StandardInformation->Directory = FALSE;
- *BufferLength = sizeof(FILE_STANDARD_INFORMATION);
-
- return STATUS_SUCCESS;
-}
-
-static
-NTSTATUS
-KsecQueryVolumeInformation(
- PVOID InfoBuffer,
- FS_INFORMATION_CLASS FsInformationClass,
- PSIZE_T BufferLength)
-{
- PFILE_FS_DEVICE_INFORMATION DeviceInformation;
-
- /* Only FileFsDeviceInformation is supported */
- if (FsInformationClass != FileFsDeviceInformation)
- {
- return STATUS_INVALID_INFO_CLASS;
- }
-
- /* Validate buffer size */
- if (*BufferLength < sizeof(FILE_FS_DEVICE_INFORMATION))
- {
- *BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
- return STATUS_INFO_LENGTH_MISMATCH;
- }
-
- /* Fill the structure */
- DeviceInformation = (PFILE_FS_DEVICE_INFORMATION)InfoBuffer;
- DeviceInformation->DeviceType = FILE_DEVICE_NULL;
- DeviceInformation->Characteristics = 0;
- *BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
-
- return STATUS_SUCCESS;
-}
-
-static
-NTSTATUS
-KsecDeviceControl(
- ULONG IoControlCode,
- PVOID Buffer,
- SIZE_T InputLength,
- PSIZE_T OutputLength)
-{
- NTSTATUS Status;
-
- if ((IoControlCode == IOCTL_KSEC_RANDOM_FILL_BUFFER) ||
- (IoControlCode == IOCTL_KSEC_ENCRYPT_SAME_PROCESS) ||
- (IoControlCode == IOCTL_KSEC_DECRYPT_SAME_PROCESS) ||
- (IoControlCode == IOCTL_KSEC_ENCRYPT_CROSS_PROCESS) ||
- (IoControlCode == IOCTL_KSEC_DECRYPT_CROSS_PROCESS) ||
- (IoControlCode == IOCTL_KSEC_ENCRYPT_SAME_LOGON) ||
- (IoControlCode == IOCTL_KSEC_DECRYPT_SAME_LOGON))
- {
- /* Make sure we have a valid output buffer */
- if ((Buffer == NULL) || (OutputLength == NULL))
- {
- return STATUS_INVALID_PARAMETER;
- }
-
- /* Check if the input is smaller than the output */
- if (InputLength < *OutputLength)
- {
- /* We might have uninitialized memory, zero it out */
- RtlSecureZeroMemory((PUCHAR)Buffer + InputLength,
- *OutputLength - InputLength);
- }
- }
-
- /* Check ioctl code */
- switch (IoControlCode)
- {
- case IOCTL_KSEC_REGISTER_LSA_PROCESS:
-
- Status = STATUS_SUCCESS;
- break;
-
- case IOCTL_KSEC_RANDOM_FILL_BUFFER:
-
- Status = KsecGenRandom(Buffer, *OutputLength);
- break;
-
- case IOCTL_KSEC_ENCRYPT_SAME_PROCESS:
-
- Status = KsecEncryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_SAME_PROCESS);
- break;
-
- case IOCTL_KSEC_DECRYPT_SAME_PROCESS:
-
- Status = KsecDecryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_SAME_PROCESS);
- break;
-
- case IOCTL_KSEC_ENCRYPT_CROSS_PROCESS:
-
- Status = KsecEncryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_CROSS_PROCESS);
- break;
-
- case IOCTL_KSEC_DECRYPT_CROSS_PROCESS:
-
- Status = KsecDecryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_CROSS_PROCESS);
- break;
-
- case IOCTL_KSEC_ENCRYPT_SAME_LOGON:
-
- Status = KsecEncryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_SAME_LOGON);
- break;
-
- case IOCTL_KSEC_DECRYPT_SAME_LOGON:
-
- Status = KsecDecryptMemory(Buffer,
- *OutputLength,
- RTL_ENCRYPT_OPTION_SAME_LOGON);
- break;
-
- default:
- DPRINT1("Unhandled control code 0x%lx\n", IoControlCode);
- __debugbreak();
- return STATUS_INVALID_PARAMETER;
- }
-
- return Status;
-}
-
-NTSTATUS
-NTAPI
-KsecDdDispatch(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- PIO_STACK_LOCATION IoStackLocation;
- ULONG_PTR Information;
- NTSTATUS Status;
- PVOID Buffer;
- SIZE_T InputLength, OutputLength;
- FILE_INFORMATION_CLASS FileInfoClass;
- FS_INFORMATION_CLASS FsInfoClass;
- ULONG IoControlCode;
-
- IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
-
- switch (IoStackLocation->MajorFunction)
- {
- case IRP_MJ_CREATE:
- case IRP_MJ_CLOSE:
-
- /* Just return success */
- Status = STATUS_SUCCESS;
- Information = 0;
- break;
-
- case IRP_MJ_READ:
-
- /* There is nothing to read */
- Status = STATUS_END_OF_FILE;
- Information = 0;
- break;
-
- case IRP_MJ_WRITE:
-
- /* Pretend to have written everything */
- Status = STATUS_SUCCESS;
- Information = IoStackLocation->Parameters.Write.Length;
- break;
-
- case IRP_MJ_QUERY_INFORMATION:
-
- /* Extract the parameters */
- Buffer = Irp->AssociatedIrp.SystemBuffer;
- OutputLength = IoStackLocation->Parameters.QueryFile.Length;
- FileInfoClass = IoStackLocation->Parameters.QueryFile.FileInformationClass;
-
- /* Call the internal function */
- Status = KsecQueryFileInformation(Buffer,
- FileInfoClass,
- &OutputLength);
- Information = OutputLength;
- break;
-
- case IRP_MJ_QUERY_VOLUME_INFORMATION:
-
- /* Extract the parameters */
- Buffer = Irp->AssociatedIrp.SystemBuffer;
- OutputLength = IoStackLocation->Parameters.QueryVolume.Length;
- FsInfoClass = IoStackLocation->Parameters.QueryVolume.FsInformationClass;
-
- /* Call the internal function */
- Status = KsecQueryVolumeInformation(Buffer,
- FsInfoClass,
- &OutputLength);
- Information = OutputLength;
- break;
-
- case IRP_MJ_DEVICE_CONTROL:
-
- /* Extract the parameters */
- InputLength = IoStackLocation->Parameters.DeviceIoControl.InputBufferLength;
- OutputLength = IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength;
- IoControlCode = IoStackLocation->Parameters.DeviceIoControl.IoControlCode;
-
- /* Check for METHOD_OUT_DIRECT method */
- if ((METHOD_FROM_CTL_CODE(IoControlCode) == METHOD_OUT_DIRECT) &&
- (OutputLength != 0))
- {
- /* Use the provided MDL */
- OutputLength = Irp->MdlAddress->ByteCount;
- Buffer = MmGetSystemAddressForMdlSafe(Irp->MdlAddress,
- NormalPagePriority);
- if (Buffer == NULL)
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- Information = 0;
- break;
- }
- }
- else
- {
- /* Otherwise this is METHOD_BUFFERED, use the SystemBuffer */
- Buffer = Irp->AssociatedIrp.SystemBuffer;
- }
-
- /* Call the internal function */
- Status = KsecDeviceControl(IoControlCode,
- Buffer,
- InputLength,
- &OutputLength);
- Information = OutputLength;
- break;
-
- default:
- DPRINT1("Unhandled major function %lu!\n",
- IoStackLocation->MajorFunction);
- ASSERT(FALSE);
- return STATUS_INVALID_DEVICE_REQUEST;
- }
-
- /* Return the information */
- Irp->IoStatus.Status = Status;
- Irp->IoStatus.Information = Information;
-
- /* Complete the request */
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return Status;
-}
projects / reactos.git / blobdiff