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sys: WIP

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This commit is contained in:
Bill Zissimopoulos
2015-11-27 10:29:29 -08:00
parent 8572bea55f
commit f9d300c738
8 changed files with 58 additions and 33 deletions
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32
inc/winfsp/fsctl.h
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@ -36,9 +36,9 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_CREATE_BUFFER_SIZE 128
#define FSP_FSCTL_TRANSACT_BUFFER_SIZE (16 * 1024)
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX \
FSP_FSCTL_ALIGN_UP(sizeof(FSP_TRANSACT_REQ) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT)
FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_REQ) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT)
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX \
FSP_FSCTL_ALIGN_UP(sizeof(FSP_TRANSACT_RSP) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT)
FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_RSP) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT)
/* marshalling */
#pragma warning(push)
@ -52,7 +52,7 @@ typedef struct
{
UINT8 Placeholder; // !!!: REMOVE
} Req;
} FSP_TRANSACT_REQ;
} FSP_FSCTL_TRANSACT_REQ;
typedef struct
{
UINT64 Hint;
@ -67,34 +67,34 @@ typedef struct
{
UINT8 Placeholder; // !!!: REMOVE
} Req;
} FSP_TRANSACT_RSP;
} FSP_FSCTL_TRANSACT_RSP;
#pragma warning(pop)
static inline FSP_TRANSACT_REQ *FspFsctlTransactProduceRequest(
FSP_TRANSACT_REQ *Request, SIZE_T RequestSize, PVOID RequestBufEnd)
static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactProduceRequest(
FSP_FSCTL_TRANSACT_REQ *Request, SIZE_T RequestSize, PVOID RequestBufEnd)
{
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_ALIGN_UP(RequestSize, FSP_FSCTL_DEFAULT_ALIGNMENT);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
}
static inline const FSP_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
const FSP_TRANSACT_REQ *Request, PVOID RequestBufEnd)
static inline const FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
const FSP_FSCTL_TRANSACT_REQ *Request, PVOID RequestBufEnd)
{
if ((PUINT8)Request + sizeof(Request->Size) > (PUINT8)RequestBufEnd ||
sizeof(FSP_TRANSACT_REQ) > Request->Size)
sizeof(FSP_FSCTL_TRANSACT_REQ) > Request->Size)
return 0;
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_ALIGN_UP(Request->Size, FSP_FSCTL_DEFAULT_ALIGNMENT);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
}
static inline FSP_TRANSACT_RSP *FspFsctlTransactProduceResponse(
FSP_TRANSACT_RSP *Response, SIZE_T ResponseSize, PVOID ResponseBufEnd)
static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactProduceResponse(
FSP_FSCTL_TRANSACT_RSP *Response, SIZE_T ResponseSize, PVOID ResponseBufEnd)
{
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_ALIGN_UP(ResponseSize, FSP_FSCTL_DEFAULT_ALIGNMENT);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
}
static inline const FSP_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
const FSP_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
static inline const FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
const FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
{
if ((PUINT8)Response + sizeof(Response->Size) > (PUINT8)ResponseBufEnd ||
sizeof(FSP_TRANSACT_RSP) > Response->Size)
sizeof(FSP_FSCTL_TRANSACT_RSP) > Response->Size)
return 0;
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_ALIGN_UP(Response->Size, FSP_FSCTL_DEFAULT_ALIGNMENT);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
@ -107,8 +107,8 @@ FSP_API NTSTATUS FspFsctlOpenVolume(PWSTR VolumePath,
PHANDLE *PVolumeHandle);
FSP_API NTSTATUS FspFsctlDeleteVolume(HANDLE VolumeHandle);
FSP_API NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
FSP_TRANSACT_RSP *ResponseBuf, SIZE_T ResponseBufSize,
FSP_TRANSACT_REQ *RequestBuf, SIZE_T *PRequestBufSize);
FSP_FSCTL_TRANSACT_RSP *ResponseBuf, SIZE_T ResponseBufSize,
FSP_FSCTL_TRANSACT_REQ *RequestBuf, SIZE_T *PRequestBufSize);
#endif
#endif