wdfworkitem.h File Reference

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Classes
struct	_WDF_WORKITEM_CONFIG

Macros
#define	WDF_EXTERN_C
#define	WDF_EXTERN_C_START
#define	WDF_EXTERN_C_END

Typedefs
typedef EVT_WDF_WORKITEM *	PFN_WDF_WORKITEM
typedef struct _WDF_WORKITEM_CONFIG	WDF_WORKITEM_CONFIG
typedef struct _WDF_WORKITEM_CONFIG *	PWDF_WORKITEM_CONFIG
typedef _Must_inspect_result_	_IRQL_requires_max_(DISPATCH_LEVEL) WDFAPI NTSTATUS(STDCALL *PFN_WDFWORKITEMCREATE) (_In_ PWDF_DRIVER_GLOBALS DriverGlobals
typedef _Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG	Config
typedef _Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG _In_ PWDF_OBJECT_ATTRIBUTES	Attributes
typedef _Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG _In_ PWDF_OBJECT_ATTRIBUTES _Out_ WDFWORKITEM *	WorkItem

Functions
WDF_EXTERN_C_START typedef	_Function_class_ (EVT_WDF_WORKITEM) _IRQL_requires_same_ _IRQL_requires_max_(PASSIVE_LEVEL) VOID STDCALL EVT_WDF_WORKITEM(_In_ WDFWORKITEM WorkItem)
FORCEINLINE VOID	WDF_WORKITEM_CONFIG_INIT (_Out_ PWDF_WORKITEM_CONFIG Config, _In_ PFN_WDF_WORKITEM EvtWorkItemFunc)
typedef	_IRQL_requires_max_ (PASSIVE_LEVEL) WDFAPI VOID(STDCALL *PFN_WDFWORKITEMFLUSH)(_In_ PWDF_DRIVER_GLOBALS DriverGlobals
	Queries information details about a security descriptor.

Macro Definition Documentation

WDF_EXTERN_C

#define WDF_EXTERN_C

Definition at line 35 of file wdfworkitem.h.

WDF_EXTERN_C_END

#define WDF_EXTERN_C_END

Definition at line 37 of file wdfworkitem.h.

WDF_EXTERN_C_START

#define WDF_EXTERN_C_START

Definition at line 36 of file wdfworkitem.h.

Typedef Documentation

_IRQL_requires_max_

typedef _Must_inspect_result_ _IRQL_requires_max_(DISPATCH_LEVEL) WDFAPI NTSTATUS(STDCALL *PFN_WDFWORKITEMCREATE)(_In_ PWDF_DRIVER_GLOBALS DriverGlobals

Definition at line 103 of file wdfworkitem.h.

Attributes

_Must_inspect_result_ _In_ PWDF_OBJECT_ATTRIBUTES Attributes

Definition at line 112 of file wdfworkitem.h.

Config

typedef _Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG Config

Definition at line 110 of file wdfworkitem.h.

PFN_WDF_WORKITEM

typedef EVT_WDF_WORKITEM* PFN_WDF_WORKITEM

Definition at line 64 of file wdfworkitem.h.

PWDF_WORKITEM_CONFIG

typedef struct _WDF_WORKITEM_CONFIG * PWDF_WORKITEM_CONFIG

WDF_WORKITEM_CONFIG

typedef struct _WDF_WORKITEM_CONFIG WDF_WORKITEM_CONFIG

WorkItem

_In_ WDFWORKITEM WorkItem

Initial value:

{
    return ((PFN_WDFWORKITEMCREATE) WdfFunctions[WdfWorkItemCreateTableIndex])(WdfDriverGlobals, Config, Attributes, WorkItem)

Definition at line 114 of file wdfworkitem.h.

Function Documentation

_Function_class_()

WDF_EXTERN_C_START typedef _Function_class_

(

EVT_WDF_WORKITEM

)

_IRQL_requires_max_()

typedef _IRQL_requires_max_

(

PASSIVE_LEVEL

)

Queries information details about a security descriptor.

Computes the quota size of a security descriptor.

Assigns a security descriptor for a new object.

An extended function that assigns a security descriptor for a new object.

Frees a security descriptor.

An extended function that sets new information data to a security descriptor.

Modifies some information data about a security descriptor.

Parameters

[in]	SecurityInformation	Security information details to be queried from a security descriptor.
[out]	SecurityDescriptor	The returned security descriptor with security information data.
[in,out]	Length	The returned length of a security descriptor.
[in,out]	ObjectsSecurityDescriptor	The returned object security descriptor.

Returns

Returns STATUS_SUCCESS if the operations have been completed successfully and that the specific information about the security descriptor has been queried. STATUS_BUFFER_TOO_SMALL is returned if the buffer size is too small to contain the queried info about the security descriptor.

Parameters

[in]	Object	If specified, the function will use this arbitrary object that points to an object security descriptor.
[in]	SecurityInformation	Security information details to be set.
[in]	SecurityDescriptor	A security descriptor where its info is to be changed.
[in,out]	ObjectsSecurityDescriptor	The returned pointer to security descriptor objects.
[in]	PoolType	Pool type for the new security descriptor to allocate.
[in]	GenericMapping	The generic mapping of access rights masks.

Returns

See SeSetSecurityDescriptorInfoEx.

Parameters

[in]	Object	If specified, the function will use this arbitrary object that points to an object security descriptor.
[in]	SecurityInformation	Security information details to be set.
[in]	SecurityDescriptor	A security descriptor where its info is to be changed.
[in,out]	ObjectsSecurityDescriptor	The returned pointer to security descriptor objects.
[in]	AutoInheritFlags	Flags bitmask inheritation, influencing how the security descriptor can be inherited and if it can be in the first place.
[in]	PoolType	Pool type for the new security descriptor to allocate.
[in]	GenericMapping	The generic mapping of access rights masks.

Returns

Returns STATUS_SUCCESS if the operations have been completed without problems and that new info has been set to the security descriptor. STATUS_NO_SECURITY_ON_OBJECT is returned if the object does not have a security descriptor. STATUS_INSUFFICIENT_RESOURCES is returned if memory pool allocation for the new security descriptor with new info set has failed.

Parameters

[in]

SecurityDescriptor

A security descriptor to be freed from memory.

Returns

Returns STATUS_SUCCESS.

Parameters

[in]	_ParentDescriptor	A security descriptor of the parent object that is being created.
[in]	_ExplicitDescriptor	An explicit security descriptor that is applied to a new object.
[out]	NewDescriptor	The new allocated security descriptor.
[in]	ObjectType	The type of the new object.
[in]	IsDirectoryObject	Set this to TRUE if the newly created object is a directory object, otherwise set this to FALSE.
[in]	AutoInheritFlags	Automatic inheritance flags that influence how access control entries within ACLs from security descriptors are inherited.
[in]	SubjectContext	Security subject context of the new object.
[in]	GenericMapping	Generic mapping of access mask rights.
[in]	PoolType	This parameter is unused.

Returns

Returns STATUS_SUCCESS if the operations have been completed successfully and that the security descriptor has been assigned to the new object. STATUS_NO_TOKEN is returned if the caller hasn't supplied a valid argument to a security subject context. STATUS_INVALID_OWNER is returned if the caller hasn't supplied a parent descriptor that belongs to the main user (owner). STATUS_INVALID_PRIMARY_GROUP is returned by the same reason as with the previous NTSTATUS code. The two NTSTATUS codes are returned if the calling thread stated that the owner and/or group is defaulted to the parent descriptor (SEF_DEFAULT_OWNER_FROM_PARENT and/or SEF_DEFAULT_GROUP_FROM_PARENT respectively). STATUS_INSUFFICIENT_RESOURCES is returned if memory pool allocation for the descriptor buffer has failed. A failure NTSTATUS is returned otherwise.

Parameters

[in]	ParentDescriptor	A security descriptor of the parent object that is being created.
[in]	ExplicitDescriptor	An explicit security descriptor that is applied to a new object.
[out]	NewDescriptor	The new allocated security descriptor.
[in]	IsDirectoryObject	Set this to TRUE if the newly created object is a directory object, otherwise set this to FALSE.
[in]	SubjectContext	Security subject context of the new object.
[in]	GenericMapping	Generic mapping of access mask rights.
[in]	PoolType	This parameter is unused.

Returns

See SeAssignSecurityEx.

Parameters

[in]	SecurityDescriptor	A security descriptor.
[out]	QuotaInfoSize	The returned quota size of the given security descriptor to the caller. The function may return 0 to this parameter if the descriptor doesn't have a group or a discretionary access control list (DACL) even.

Returns

Returns STATUS_SUCCESS if the quota size of a security descriptor has been computed successfully. STATUS_UNKNOWN_REVISION is returned if the security descriptor has an invalid revision.

Definition at line 197 of file wdfworkitem.h.

{
    ((PFN_WDFWORKITEMFLUSH) WdfFunctions[WdfWorkItemFlushTableIndex])(WdfDriverGlobals, WorkItem);
}

WDF_WORKITEM_CONFIG_INIT()

FORCEINLINE VOID WDF_WORKITEM_CONFIG_INIT	(	_Out_ PWDF_WORKITEM_CONFIG	Config,
		_In_ PFN_WDF_WORKITEM	EvtWorkItemFunc
	)

Definition at line 85 of file wdfworkitem.h.

{
    RtlZeroMemory(Config, sizeof(WDF_WORKITEM_CONFIG));
    Config->Size = sizeof(WDF_WORKITEM_CONFIG);
    Config->EvtWorkItemFunc = EvtWorkItemFunc;
 
    Config->AutomaticSerialization = TRUE;
}

Referenced by DeviceErrorHandlerForMmc(), and DriverEvtDeviceAdd().