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sys: FSP_FSCTL_TRANSACT[_BATCH]_BUFFER_SIZEMIN

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This commit is contained in:
Bill Zissimopoulos 2016-02-15 15:15:46 -08:00
parent d1fe27f996
commit f61aa5a9bb
5 changed files with 8 additions and 7 deletions
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3
inc/winfsp/fsctl.h
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@ -41,9 +41,10 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_VOLUME_NAME_SIZEMAX 128 #define FSP_FSCTL_VOLUME_NAME_SIZEMAX 128
#define FSP_FSCTL_TRANSACT_REQ_BUFFER_SIZEMIN 16384 /* checked by driver! */
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (4096 - 64) /* 64: size for internal request header */ #define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (4096 - 64) /* 64: size for internal request header */
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX (4096 - 64) /* symmetry! */ #define FSP_FSCTL_TRANSACT_RSP_SIZEMAX (4096 - 64) /* symmetry! */
#define FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN 16384
#define FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN FSP_FSCTL_TRANSACT_REQ_SIZEMAX
/* volume/file metadata */ /* volume/file metadata */
typedef struct typedef struct

4
src/dll/loop.c
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@ -70,13 +70,13 @@ FSP_API NTSTATUS FspFileSystemLoop(FSP_FILE_SYSTEM *FileSystem)
SIZE_T RequestBufSize; SIZE_T RequestBufSize;
FSP_FSCTL_TRANSACT_REQ *Request, *NextRequest; FSP_FSCTL_TRANSACT_REQ *Request, *NextRequest;
RequestBuf = MemAlloc(FSP_FSCTL_TRANSACT_REQ_SIZEMAX); RequestBuf = MemAlloc(FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN);
if (0 == RequestBuf) if (0 == RequestBuf)
return STATUS_INSUFFICIENT_RESOURCES; return STATUS_INSUFFICIENT_RESOURCES;
for (;;) for (;;)
{ {
RequestBufSize = FSP_FSCTL_TRANSACT_REQ_SIZEMAX; RequestBufSize = FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN;
Result = FspFsctlTransact(FileSystem->VolumeHandle, 0, 0, RequestBuf, &RequestBufSize, FALSE); Result = FspFsctlTransact(FileSystem->VolumeHandle, 0, 0, RequestBuf, &RequestBufSize, FALSE);
if (!NT_SUCCESS(Result)) if (!NT_SUCCESS(Result))
goto exit; goto exit;

4
src/sys/volume.c
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@ -513,9 +513,9 @@ NTSTATUS FspVolumeTransact(
return STATUS_INVALID_PARAMETER; return STATUS_INVALID_PARAMETER;
if (0 != OutputBufferLength && if (0 != OutputBufferLength &&
((FSP_FSCTL_TRANSACT == ControlCode && ((FSP_FSCTL_TRANSACT == ControlCode &&
FSP_FSCTL_TRANSACT_REQ_SIZEMAX > OutputBufferLength) || FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN > OutputBufferLength) ||
(FSP_FSCTL_TRANSACT_BATCH == ControlCode && (FSP_FSCTL_TRANSACT_BATCH == ControlCode &&
FSP_FSCTL_TRANSACT_REQ_BUFFER_SIZEMIN > OutputBufferLength))) FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN > OutputBufferLength)))
return STATUS_BUFFER_TOO_SMALL; return STATUS_BUFFER_TOO_SMALL;
if (!FspDeviceReference(FsvolDeviceObject)) if (!FspDeviceReference(FsvolDeviceObject))

2
tst/winfsp-tests/mount-test.c
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@ -173,7 +173,7 @@ void mount_volume_transact_dotest(PWSTR DeviceName, PWSTR Prefix)
Sleep(1000); /* give some time to the thread to execute */ Sleep(1000); /* give some time to the thread to execute */
FSP_FSCTL_DECLSPEC_ALIGN UINT8 RequestBuf[FSP_FSCTL_TRANSACT_REQ_BUFFER_SIZEMIN]; FSP_FSCTL_DECLSPEC_ALIGN UINT8 RequestBuf[FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN];
FSP_FSCTL_DECLSPEC_ALIGN UINT8 ResponseBuf[FSP_FSCTL_TRANSACT_RSP_SIZEMAX]; FSP_FSCTL_DECLSPEC_ALIGN UINT8 ResponseBuf[FSP_FSCTL_TRANSACT_RSP_SIZEMAX];
UINT8 *RequestBufEnd; UINT8 *RequestBufEnd;
UINT8 *ResponseBufEnd = ResponseBuf + sizeof ResponseBuf; UINT8 *ResponseBufEnd = ResponseBuf + sizeof ResponseBuf;

2
tst/winfsp-tests/timeout-test.c
View File

@ -168,7 +168,7 @@ void timeout_transact_dotest(PWSTR DeviceName, PWSTR Prefix)
ASSERT(INVALID_HANDLE_VALUE != VolumeHandle); ASSERT(INVALID_HANDLE_VALUE != VolumeHandle);
FSP_FSCTL_DECLSPEC_ALIGN UINT8 RequestBuf[FSP_FSCTL_TRANSACT_REQ_BUFFER_SIZEMIN]; FSP_FSCTL_DECLSPEC_ALIGN UINT8 RequestBuf[FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN];
FSP_FSCTL_DECLSPEC_ALIGN UINT8 ResponseBuf[FSP_FSCTL_TRANSACT_RSP_SIZEMAX]; FSP_FSCTL_DECLSPEC_ALIGN UINT8 ResponseBuf[FSP_FSCTL_TRANSACT_RSP_SIZEMAX];
UINT8 *RequestBufEnd; UINT8 *RequestBufEnd;
UINT8 *ResponseBufEnd = ResponseBuf + sizeof ResponseBuf; UINT8 *ResponseBufEnd = ResponseBuf + sizeof ResponseBuf;