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sys: IRP_MJ_CREATE

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This commit is contained in:
Bill Zissimopoulos
2015-12-03 20:18:21 -08:00
parent eb07db1d29
commit b0066b81ac
3 changed files with 41 additions and 16 deletions
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17
inc/winfsp/fsctl.h
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@ -21,8 +21,9 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
/* alignment macros */
#define FSP_FSCTL_ALIGN_UP(x, s) (((x) + ((s) - 1L)) & ~((s) - 1L))
#define FSP_FSCTL_DEFAULT_ALIGNMENT (8)
#define FSP_FSCTL_DECLSPEC_ALIGN __declspec(align(8))
#define FSP_FSCTL_DEFAULT_ALIGNMENT 8
#define FSP_FSCTL_DEFAULT_ALIGN_UP(x) FSP_FSCTL_ALIGN_UP(x, FSP_FSCTL_DEFAULT_ALIGNMENT)
#define FSP_FSCTL_DECLSPEC_ALIGN __declspec(align(FSP_FSCTL_DEFAULT_ALIGNMENT))
/* fsctl device codes */
#define FSP_FSCTL_CREATE \
@ -37,9 +38,7 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_CREATE_BUFFER_SIZE 128
#define FSP_FSCTL_TRANSACT_BUFFER_SIZE (16 * 1024)
#define FSP_FSCTL_VOLUME_PARAMS_SIZE \
FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_VOLUME_PARAMS),\
FSP_FSCTL_DEFAULT_ALIGNMENT)
#define FSP_FSCTL_VOLUME_PARAMS_SIZE FSP_FSCTL_DEFAULT_ALIGN_UP(sizeof(FSP_FSCTL_VOLUME_PARAMS))
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (4 * 1024)
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX (4 * 1024)
@ -142,7 +141,7 @@ typedef struct
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);
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(RequestSize);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
}
static inline const FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
@ -151,13 +150,13 @@ static inline const FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
if ((PUINT8)Request + sizeof(Request->Size) > (PUINT8)RequestBufEnd ||
sizeof(FSP_FSCTL_TRANSACT_REQ) > Request->Size)
return 0;
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_ALIGN_UP(Request->Size, FSP_FSCTL_DEFAULT_ALIGNMENT);
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(Request->Size);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
}
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);
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_DEFAULT_ALIGN_UP(ResponseSize);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
}
static inline const FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
@ -166,7 +165,7 @@ static inline const FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
if ((PUINT8)Response + sizeof(Response->Size) > (PUINT8)ResponseBufEnd ||
sizeof(FSP_FSCTL_TRANSACT_RSP) > Response->Size)
return 0;
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_ALIGN_UP(Response->Size, FSP_FSCTL_DEFAULT_ALIGNMENT);
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_DEFAULT_ALIGN_UP(Response->Size);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
}