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sys: FastIo: read/write implementation

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This commit is contained in:
Bill Zissimopoulos
2022-03-20 20:31:54 +00:00
parent 00d4aba946
commit 20680fa5b5
7 changed files with 311 additions and 5 deletions
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41
src/sys/driver.h
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@ -304,6 +304,43 @@ VOID FspTraceNtStatus(const char *file, int line, const char *func, NTSTATUS Sta
} \
); \
return Result
#define FSP_ENTER_FIO(...) \
PDEVICE_OBJECT FsvolDeviceObject; \
if (FspFsmupDeviceExtensionKind == FspDeviceExtension(DeviceObject)->Kind)\
{ \
FsvolDeviceObject = FspMupGetFsvolDeviceObject(FileObject);\
if (0 == FsvolDeviceObject) \
{ \
IoStatus->Status = STATUS_INVALID_DEVICE_REQUEST;\
IoStatus->Information = 0; \
return TRUE; \
} \
} \
else \
FsvolDeviceObject = DeviceObject;\
BOOLEAN Result = TRUE; \
BOOLEAN fsp_device_deref = FALSE; \
FSP_ENTER_(ioentr, __VA_ARGS__); \
do \
{ \
ASSERT(0 == IoGetTopLevelIrp()); \
IoSetTopLevelIrp((PIRP)FSRTL_FAST_IO_TOP_LEVEL_IRP); \
if (!FspDeviceReference(FsvolDeviceObject))\
{ \
IoStatus->Status = STATUS_CANCELLED;\
IoStatus->Information = 0; \
goto fsp_leave_label; \
} \
fsp_device_deref = TRUE; \
} while (0,0)
#define FSP_LEAVE_FIO(fmt, ...) \
FSP_LEAVE_( \
FSP_DEBUGLOG_(fmt, " = %s", __VA_ARGS__, Result ? "TRUE" : "FALSE");\
if (fsp_device_deref) \
FspDeviceDereference(FsvolDeviceObject);\
IoSetTopLevelIrp(0); \
); \
return Result
#define FSP_ENTER_BOOL(...) \
BOOLEAN Result = TRUE; FSP_ENTER_(iocall, __VA_ARGS__)
#define FSP_LEAVE_BOOL(fmt, ...) \
@ -383,6 +420,8 @@ FSP_IOPREP_DISPATCH FspFsvolWritePrepare;
FSP_IOCMPL_DISPATCH FspFsvolWriteComplete;
/* fast I/O and resource acquisition callbacks */
FAST_IO_READ FspFastIoRead;
FAST_IO_WRITE FspFastIoWrite;
FAST_IO_QUERY_BASIC_INFO FspFastIoQueryBasicInfo;
FAST_IO_QUERY_STANDARD_INFO FspFastIoQueryStandardInfo;
FAST_IO_QUERY_NETWORK_OPEN_INFO FspFastIoQueryNetworkOpenInfo;
@ -1360,6 +1399,8 @@ NTSTATUS FspMupRegister(
PDEVICE_OBJECT FsmupDeviceObject, PDEVICE_OBJECT FsvolDeviceObject);
VOID FspMupUnregister(
PDEVICE_OBJECT FsmupDeviceObject, PDEVICE_OBJECT FsvolDeviceObject);
PDEVICE_OBJECT FspMupGetFsvolDeviceObject(
PFILE_OBJECT FileObject);
NTSTATUS FspMupHandleIrp(
PDEVICE_OBJECT FsmupDeviceObject, PIRP Irp);