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Classes
class	HubSpinLockGuard

class	HubWaitLockGuard

class	HubTimer

Macros
#define	HUB_TAG_DRIVER 'w3HU'

#define	HUB_TAG_HUB 'h3HU'

#define	HUB_TAG_DEVICE 'd3HU'

#define	HUB_TAG_PORT 'p3HU'

Functions
PVOID	operator new (_In_ size_t Size, _In_ PVOID Where) noexcept

VOID	operator delete (_In_ PVOID Memory, _In_ PVOID Where) noexcept

FORCEINLINE VOID NTAPI	HubClearListEntry (_Out_ PLIST_ENTRY Entry)

FORCEINLINE BOOLEAN NTAPI	HubIsListEntryLinked (_In_ const LIST_ENTRY *Entry)

	_IRQL_requires_ (PASSIVE_LEVEL) VOID NTAPI HubWaitForPnpEvent(_In_ PKEVENT Event
	Sends a synchronous IOCTL to the specified device object.

FORCEINLINE VOID NTAPI	HubDereferenceDeferred (_In_ WDFOBJECT Object)

FORCEINLINE VOID NTAPI	HubDeleteDeferred (_In_ WDFOBJECT Object)

Variables
_In_ PCSTR	What

_In_ PCSTR _In_ WDFOBJECT	Object

Macro Definition Documentation

◆ HUB_TAG_DEVICE

#define HUB_TAG_DEVICE 'd3HU'

Definition at line 13 of file hubutil.h.

◆ HUB_TAG_DRIVER

#define HUB_TAG_DRIVER 'w3HU'

Definition at line 11 of file hubutil.h.

◆ HUB_TAG_HUB

#define HUB_TAG_HUB 'h3HU'

Definition at line 12 of file hubutil.h.

◆ HUB_TAG_PORT

#define HUB_TAG_PORT 'p3HU'

Definition at line 14 of file hubutil.h.

Function Documentation

◆ _IRQL_requires_()

_IRQL_requires_ ( PASSIVE_LEVEL )

Sends a synchronous IOCTL to the specified device object.

Waits on a PnP handshake event with no timeout, printing a watchdog line every minute so a stuck machine is visible in the debugger.

Definition at line 2121 of file class.c.

{
    NTSTATUS status = STATUS_SUCCESS;
 
    PAGED_CODE();
 
    TracePrint((TRACE_LEVEL_VERBOSE,
                TRACE_FLAG_PNP,
                "ClassDetermineTokenOperationCommandSupport (%p): Entering function.\n",
                DeviceObject));
 
    //
    // Send down Inquiry for VPD_THIRD_PARTY_COPY_PAGE and cache away the device parameters
    // from WINDOWS_BLOCK_DEVICE_TOKEN_LIMITS_DESCRIPTOR.
    //
    status = ClasspGetBlockDeviceTokenLimitsInfo(DeviceObject);
 
    if (NT_SUCCESS(status)) {
 
        ULONG maxListIdentifier = MaxTokenOperationListIdentifier;
 
        //
        // Query the maximum list identifier to use for TokenOperation commands.
        //
        if (NT_SUCCESS(ClasspGetMaximumTokenListIdentifier(DeviceObject, REG_DISK_CLASS_CONTROL, &maxListIdentifier))) {
            if (maxListIdentifier >= MIN_TOKEN_LIST_IDENTIFIERS) {
 
                NT_ASSERT(maxListIdentifier <= MAX_TOKEN_LIST_IDENTIFIERS);
                MaxTokenOperationListIdentifier = maxListIdentifier;
            }
        }
 
    }
 
    TracePrint((TRACE_LEVEL_VERBOSE,
                TRACE_FLAG_PNP,
                "ClassDetermineTokenOperationCommandSupport (%p): Exiting function with status %x.\n",
                DeviceObject,
                status));
 
    return status;
}

◆ HubClearListEntry()

FORCEINLINE VOID NTAPI HubClearListEntry ( _Out_ PLIST_ENTRY Entry )

Definition at line 149 of file hubutil.h.

{
    Entry->Flink = NULL;
    Entry->Blink = NULL;
}

Referenced by _IRQL_requires_(), HubFdo::QueuePowerDownToDevices(), HubFdo::QueuePowerUpToDevices(), and HubFdo::UnregisterDevice().

◆ HubDeleteDeferred()

FORCEINLINE VOID NTAPI HubDeleteDeferred ( _In_ WDFOBJECT Object )

WdfObjectDelete with the same deferral as HubDereferenceDeferred.

Definition at line 195 of file hubutil.h.

{
    KIRQL Irql;
 
    KeRaiseIrql(DISPATCH_LEVEL, &Irql);
    WdfObjectDelete(Object);
    KeLowerIrql(Irql);
}

Referenced by PortMachine::ForgetDetachedDevice().

◆ HubDereferenceDeferred()

FORCEINLINE VOID NTAPI HubDereferenceDeferred ( _In_ WDFOBJECT Object )

Drops a reference at DISPATCH_LEVEL so a last release never waits on its own work item.

Definition at line 181 of file hubutil.h.

{
    KIRQL Irql;
 
    KeRaiseIrql(DISPATCH_LEVEL, &Irql);
    WdfObjectDereference(Object);
    KeLowerIrql(Irql);
}

Referenced by DeviceMachine::DereferenceDevice(), and PortMachine::DereferencePort().

◆ HubIsListEntryLinked()

FORCEINLINE BOOLEAN NTAPI HubIsListEntryLinked ( _In_ const LIST_ENTRY * Entry )

Definition at line 159 of file hubutil.h.

{
    return Entry->Flink != NULL;
}

◆ operator delete()

VOID operator delete	(	_In_ PVOID	Memory,
		_In_ PVOID	Where
	)

inlinenoexcept

Definition at line 29 of file hubutil.h.

{
    UNREFERENCED_PARAMETER(Memory);
    UNREFERENCED_PARAMETER(Where);
}

◆ operator new()

PVOID operator new	(	_In_ size_t	Size,
		_In_ PVOID	Where
	)

inlinenoexcept

Definition at line 19 of file hubutil.h.

{
    UNREFERENCED_PARAMETER(Size);
    return Where;
}

Variable Documentation

◆ Object

_In_ PCSTR _In_ WDFOBJECT Object

Definition at line 175 of file hubutil.h.

◆ What

_In_ PCSTR What

Definition at line 174 of file hubutil.h.

Classes

Macros

Functions

Variables