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sys: FspFsvrtTransact testing

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This commit is contained in:
Bill Zissimopoulos
2015-12-12 17:01:30 -08:00
parent 43b8fc00f5
commit 5d6d938039
7 changed files with 163 additions and 34 deletions
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35
inc/winfsp/fsctl.h
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@ -35,8 +35,9 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_TRANSACT \
CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'T', METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSP_FSCTL_CREATE_BUFFER_SIZE 128
#define FSP_FSCTL_TRANSACT_BUFFER_SIZE 16384
#define FSP_FSCTL_CREATE_BUFFER_SIZEMIN 128
#define FSP_FSCTL_TRANSACT_REQ_BUFFER_SIZEMIN 16384 /* checked by driver! */
#define FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMIN 16384 /* not checked by driver! */
#define FSP_FSCTL_VOLUME_PARAMS_SIZE FSP_FSCTL_DEFAULT_ALIGN_UP(sizeof(FSP_FSCTL_VOLUME_PARAMS))
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (4096 - 64) /* 64: size for internal request header */
@ -154,14 +155,19 @@ typedef struct
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
} FSP_FSCTL_TRANSACT_RSP;
#pragma warning(pop)
static inline BOOLEAN FspFsctlTransactCanProduceRequest(
FSP_FSCTL_TRANSACT_REQ *Request, PVOID RequestBufEnd)
{
return (PUINT8)Request + FSP_FSCTL_TRANSACT_REQ_SIZEMAX <= (PUINT8)RequestBufEnd;
}
static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactProduceRequest(
FSP_FSCTL_TRANSACT_REQ *Request, SIZE_T RequestSize, PVOID RequestBufEnd)
FSP_FSCTL_TRANSACT_REQ *Request, SIZE_T RequestSize)
{
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(RequestSize);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
return NextRequest;
}
static inline const FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
const FSP_FSCTL_TRANSACT_REQ *Request, PVOID RequestBufEnd)
static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
FSP_FSCTL_TRANSACT_REQ *Request, PVOID RequestBufEnd)
{
if ((PUINT8)Request + sizeof(Request->Size) > (PUINT8)RequestBufEnd ||
sizeof(FSP_FSCTL_TRANSACT_REQ) > Request->Size)
@ -169,14 +175,19 @@ static inline const FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(Request->Size);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
}
static inline BOOLEAN FspFsctlTransactCanProduceResponse(
FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
{
return (PUINT8)Response + FSP_FSCTL_TRANSACT_RSP_SIZEMAX <= (PUINT8)ResponseBufEnd;
}
static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactProduceResponse(
FSP_FSCTL_TRANSACT_RSP *Response, SIZE_T ResponseSize, PVOID ResponseBufEnd)
FSP_FSCTL_TRANSACT_RSP *Response, SIZE_T ResponseSize)
{
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_DEFAULT_ALIGN_UP(ResponseSize);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
return NextResponse;
}
static inline const FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
const FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
{
if ((PUINT8)Response + sizeof(Response->Size) > (PUINT8)ResponseBufEnd ||
sizeof(FSP_FSCTL_TRANSACT_RSP) > Response->Size)
@ -193,8 +204,8 @@ FSP_API NTSTATUS FspFsctlOpenVolume(PWSTR VolumePath,
PHANDLE PVolumeHandle);
FSP_API NTSTATUS FspFsctlDeleteVolume(HANDLE VolumeHandle);
FSP_API NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
FSP_FSCTL_TRANSACT_RSP *ResponseBuf, SIZE_T ResponseBufSize,
FSP_FSCTL_TRANSACT_REQ *RequestBuf, SIZE_T *PRequestBufSize);
PVOID ResponseBuf, SIZE_T ResponseBufSize,
PVOID RequestBuf, SIZE_T *PRequestBufSize);
#endif
#endif