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dll: WIP

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This commit is contained in:
Bill Zissimopoulos 2015-11-25 22:01:11 -08:00
parent c3820ff88a
commit bafb947b9f
2 changed files with 35 additions and 17 deletions
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18
inc/winfsp/fsctl.h
View File

@ -38,8 +38,8 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#pragma warning(disable:4200) /* zero-sized array in struct/union */
typedef struct
{
ULONG Size;
UINT_PTR Hint;
UINT32 Size;
UINT64 Hint;
UINT8 Kind;
union
{
@ -48,9 +48,13 @@ typedef struct
} FSP_TRANSACT_REQ;
typedef struct
{
ULONG Size;
UINT_PTR Hint;
IO_STATUS_BLOCK IoStatus;
UINT32 Size;
UINT64 Hint;
struct
{
UINT32 Status;
UINT64 Information;
} IoStatus;
UINT8 Kind;
union
{
@ -66,8 +70,8 @@ NTSTATUS FspFsctlOpenVolume(PWSTR VolumePath,
PHANDLE *PVolumeHandle);
NTSTATUS FspFsctlDeleteVolume(HANDLE VolumeHandle);
NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
const FSP_TRANSACT_RSP *Responses, size_t NumResponses,
const FSP_TRANSACT_REQ *Requests, size_t *NumRequests);
FSP_TRANSACT_RSP *ResponseBuf, SIZE_T ResponseBufSize,
FSP_TRANSACT_REQ *RequestBuf, SIZE_T *PRequestBufSize);
#endif
#endif

34
src/dll/fsctl.c
View File

@ -10,9 +10,9 @@
#define GLOBALROOT L"\\\\?\\GLOBALROOT"
static inline VOID GlobalDevicePath(PWCHAR DevicePathBuf, size_t DevicePathLen, PWSTR DevicePath)
static inline VOID GlobalDevicePath(PWCHAR DevicePathBuf, SIZE_T DevicePathSize, PWSTR DevicePath)
{
StringCbPrintf(DevicePathBuf, DevicePathLen,
StringCbPrintf(DevicePathBuf, DevicePathSize,
L'\\' == DevicePath[0] ? GLOBALROOT "%S" : GLOBALROOT "\\Device\\%S", DevicePath);
}
@ -23,22 +23,22 @@ NTSTATUS FspFsctlCreateVolume(PWSTR DevicePath, PSECURITY_DESCRIPTOR SecurityDes
WCHAR DevicePathBuf[(sizeof GLOBALROOT + FSP_FSCTL_CREATE_BUFFER_SIZE) / sizeof(WCHAR)];
WCHAR VolumePathBuf[FSP_FSCTL_CREATE_BUFFER_SIZE / sizeof(WCHAR)];
PSECURITY_DESCRIPTOR SecurityDescriptorBuf = 0;
DWORD SecurityDescriptorLen, Bytes;
DWORD SecurityDescriptorSize, Bytes;
HANDLE DeviceHandle = INVALID_HANDLE_VALUE;
*PVolumeHandle = 0;
GlobalDevicePath(DevicePathBuf, sizeof DevicePathBuf, DevicePath);
if (!MakeSelfRelativeSD(SecurityDescriptor, 0, &SecurityDescriptorLen))
if (!MakeSelfRelativeSD(SecurityDescriptor, 0, &SecurityDescriptorSize))
{
SecurityDescriptorBuf = malloc(SecurityDescriptorLen);
SecurityDescriptorBuf = malloc(SecurityDescriptorSize);
if (0 == SecurityDescriptorBuf)
{
Result = STATUS_INSUFFICIENT_RESOURCES;
goto exit;
}
if (!MakeSelfRelativeSD(SecurityDescriptor, SecurityDescriptorBuf, &SecurityDescriptorLen))
if (!MakeSelfRelativeSD(SecurityDescriptor, SecurityDescriptorBuf, &SecurityDescriptorSize))
{
Result = FspNtStatusFromWin32(GetLastError());
goto exit;
@ -54,7 +54,7 @@ NTSTATUS FspFsctlCreateVolume(PWSTR DevicePath, PSECURITY_DESCRIPTOR SecurityDes
}
if (!DeviceIoControl(DeviceHandle, FSP_FSCTL_CREATE,
SecurityDescriptorBuf, SecurityDescriptorLen, VolumePathBuf, sizeof VolumePathBuf,
SecurityDescriptorBuf, SecurityDescriptorSize, VolumePathBuf, sizeof VolumePathBuf,
&Bytes, 0))
{
Result = FspNtStatusFromWin32(GetLastError());
@ -113,8 +113,22 @@ exit:
}
NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
const FSP_TRANSACT_RSP *Responses, size_t NumResponses,
const FSP_TRANSACT_REQ *Requests, size_t *NumRequests)
FSP_TRANSACT_RSP *ResponseBuf, SIZE_T ResponseBufSize,
FSP_TRANSACT_REQ *RequestBuf, SIZE_T *PRequestBufSize)
{
return STATUS_NOT_IMPLEMENTED;
NTSTATUS Result = STATUS_SUCCESS;
DWORD Bytes;
if (!DeviceIoControl(VolumeHandle, FSP_FSCTL_TRANSACT,
ResponseBuf, (DWORD)ResponseBufSize, RequestBuf, (DWORD)*PRequestBufSize,
&Bytes, 0))
{
Result = FspNtStatusFromWin32(GetLastError());
goto exit;
}
*PRequestBufSize = Bytes;
exit:
return Result;
}