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- Implementation of IoQueryDeviceDescription. Patch by Alex Ionescu.
svn path=/trunk/; revision=9563
This commit is contained in:
Filip Navara
parent
9c2056bb25
commit
c5cd2328e8
1 changed files with 689 additions and 48 deletions
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@ -16,12 +16,13 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: resource.c,v 1.14 2003/12/14 17:44:02 hbirr Exp $
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/* $Id: resource.c,v 1.15 2004/05/30 18:30:03 navaraf Exp $
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*
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/io/resource.c
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* PURPOSE: Hardware resource managment
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* PROGRAMMER: David Welch (welch@mcmail.com)
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* Alex Ionescu (alex@relsoft.net)
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* UPDATE HISTORY:
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* Created 22/05/98
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*/
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@ -30,8 +31,6 @@
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#include <ddk/ntddk.h>
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#include <rosrtl/string.h>
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#include <internal/debug.h>
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/* GLOBALS *******************************************************************/
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@ -39,7 +38,633 @@
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static CONFIGURATION_INFORMATION
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SystemConfigurationInformation = {0, 0, 0, 0, 0, 0, 0, FALSE, FALSE};
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/* FUNCTIONS *****************************************************************/
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/* API Parameters to Pass in IopQueryBusDescription */
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typedef struct IO_QUERY {
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PINTERFACE_TYPE BusType;
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PULONG BusNumber;
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PCONFIGURATION_TYPE ControllerType;
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PULONG ControllerNumber;
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PCONFIGURATION_TYPE PeripheralType;
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PULONG PeripheralNumber;
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PIO_QUERY_DEVICE_ROUTINE CalloutRoutine;
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PVOID Context;
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} IO_QUERY, *PIO_QUERY;
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PWSTR ArcTypes[42] = {
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L"System",
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L"CentralProcessor",
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L"FloatingPointProcessor",
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L"PrimaryICache",
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L"PrimaryDCache",
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L"SecondaryICache",
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L"SecondaryDCache",
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L"SecondaryCache",
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L"EisaAdapter",
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L"TcAdapter",
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L"ScsiAdapter",
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L"DtiAdapter",
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L"MultifunctionAdapter",
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L"DiskController",
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L"TapeController",
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L"CdRomController",
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L"WormController",
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L"SerialController",
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L"NetworkController",
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L"DisplayController",
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L"ParallelController",
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L"PointerController",
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L"KeyboardController",
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L"AudioController",
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L"OtherController",
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L"DiskPeripheral",
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L"FloppyDiskPeripheral",
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L"TapePeripheral",
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L"ModemPeripheral",
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L"MonitorPeripheral",
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L"PrinterPeripheral",
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L"PointerPeripheral",
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L"KeyboardPeripheral",
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L"TerminalPeripheral",
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L"OtherPeripheral",
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L"LinePeripheral",
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L"NetworkPeripheral",
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L"SystemMemory",
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L"DockingInformation",
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L"RealModeIrqRoutingTable",
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L"RealModePCIEnumeration",
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L"Undefined"
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};
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#define TAG_IO_RESOURCE TAG('R', 'S', 'R', 'C')
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/* PRIVATE FUNCTIONS **********************************************************/
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/*
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* IopQueryDeviceDescription
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*
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* FUNCTION:
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* Reads and returns Hardware information from the appropriate hardware
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* registry key. Helper sub of IopQueryBusDescription.
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*
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* ARGUMENTS:
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* Query - What the parent function wants.
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* RootKey - Which key to look in
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* RootKeyHandle - Handle to the key
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* Bus - Bus Number.
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* BusInformation - The Configuration Information Sent
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*
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* RETURNS:
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* Status
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*/
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NTSTATUS STDCALL
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IopQueryDeviceDescription(
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PIO_QUERY Query,
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UNICODE_STRING RootKey,
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HANDLE RootKeyHandle,
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ULONG Bus,
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PKEY_VALUE_FULL_INFORMATION *BusInformation)
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{
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NTSTATUS Status;
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/* Controller Stuff */
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UNICODE_STRING ControllerString;
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UNICODE_STRING ControllerRootRegName = RootKey;
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UNICODE_STRING ControllerRegName;
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HANDLE ControllerKeyHandle;
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PKEY_FULL_INFORMATION ControllerFullInformation;
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PKEY_VALUE_FULL_INFORMATION ControllerInformation[3] = {NULL, NULL, NULL};
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ULONG ControllerNumber;
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ULONG ControllerLoop;
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ULONG MaximumControllerNumber;
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/* Peripheral Stuff */
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UNICODE_STRING PeripheralString;
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HANDLE PeripheralKeyHandle;
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PKEY_FULL_INFORMATION PeripheralFullInformation;
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PKEY_VALUE_FULL_INFORMATION PeripheralInformation[3] = {NULL, NULL, NULL};
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ULONG PeripheralNumber;
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ULONG PeripheralLoop;
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ULONG MaximumPeripheralNumber;
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/* Global Registry Stuff */
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OBJECT_ATTRIBUTES ObjectAttributes;
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ULONG LenFullInformation;
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ULONG LenKeyFullInformation;
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UNICODE_STRING TempString;
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WCHAR TempBuffer[14];
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PWSTR Strings[3] = {
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L"Identifier",
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L"Configuration Data",
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L"Component Information"
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};
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/* Temporary String */
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TempString.MaximumLength = sizeof(TempBuffer);
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TempString.Length = 0;
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TempString.Buffer = TempBuffer;
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/* Add Controller Name to String */
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RtlAppendUnicodeToString(&ControllerRootRegName, L"\\");
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RtlAppendUnicodeToString(&ControllerRootRegName, ArcTypes[*Query->ControllerType]);
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/* Set the Controller Number if specified */
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if (Query->ControllerNumber && *(Query->ControllerNumber))
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{
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ControllerNumber = *Query->ControllerNumber;
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MaximumControllerNumber = ControllerNumber + 1;
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} else {
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/* Find out how many Controller Numbers there are */
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InitializeObjectAttributes(
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&ObjectAttributes,
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&ControllerRootRegName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(&ControllerKeyHandle, KEY_READ, &ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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/* How much buffer space */
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ZwQueryKey(ControllerKeyHandle, KeyFullInformation, NULL, 0, &LenFullInformation);
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/* Allocate it */
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ControllerFullInformation = ExAllocatePoolWithTag(PagedPool, LenFullInformation, TAG_IO_RESOURCE);
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/* Get the Information */
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Status = ZwQueryKey(ControllerKeyHandle, KeyFullInformation, ControllerFullInformation, LenFullInformation, &LenFullInformation);
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ZwClose(ControllerKeyHandle);
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ControllerKeyHandle = NULL;
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}
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/* No controller was found, go back to function. */
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if (!NT_SUCCESS(Status))
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{
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if (ControllerFullInformation != NULL)
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ExFreePool(ControllerFullInformation);
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return Status;
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}
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/* Find out Controller Numbers */
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ControllerNumber = 0;
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MaximumControllerNumber = ControllerFullInformation->SubKeys;
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/* Free Memory */
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ExFreePool(ControllerFullInformation);
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ControllerFullInformation = NULL;
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}
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/* Save String */
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ControllerRegName = ControllerRootRegName;
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/* Loop through controllers */
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for (; ControllerNumber < MaximumControllerNumber; ControllerNumber++)
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{
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/* Load String */
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ControllerRootRegName = ControllerRegName;
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/* Controller Number to Registry String */
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Status = RtlIntegerToUnicodeString(ControllerNumber, 10, &TempString);
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/* Create String */
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Status |= RtlAppendUnicodeToString(&ControllerRootRegName, L"\\");
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Status |= RtlAppendUnicodeStringToString(&ControllerRootRegName, &TempString);
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/* Something messed up */
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if (!NT_SUCCESS(Status)) break;
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/* Open the Registry Key */
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InitializeObjectAttributes(
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&ObjectAttributes,
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&ControllerRootRegName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(&ControllerKeyHandle, KEY_READ, &ObjectAttributes);
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/* Read the Configuration Data... */
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if (NT_SUCCESS(Status))
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{
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for (ControllerLoop = 0; ControllerLoop < 3; ControllerLoop++)
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{
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/* Identifier String First */
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RtlInitUnicodeString(&ControllerString, Strings[ControllerLoop]);
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/* How much buffer space */
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ZwQueryValueKey(ControllerKeyHandle, &ControllerString, KeyValueFullInformation, NULL, 0, &LenKeyFullInformation);
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/* Allocate it */
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ControllerInformation[ControllerLoop] = ExAllocatePoolWithTag(PagedPool, LenKeyFullInformation, TAG_IO_RESOURCE);
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/* Get the Information */
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Status = ZwQueryValueKey(ControllerKeyHandle, &ControllerString, KeyValueFullInformation, ControllerInformation[ControllerLoop], LenKeyFullInformation, &LenKeyFullInformation);
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}
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/* Clean Up */
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ZwClose(ControllerKeyHandle);
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ControllerKeyHandle = NULL;
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}
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/* Something messed up */
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if (!NT_SUCCESS(Status))
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goto EndLoop;
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/* We now have Bus *AND* Controller Information.. is it enough? */
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if (!(*Query->PeripheralType))
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{
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Status = Query->CalloutRoutine(
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Query->Context,
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&ControllerRootRegName,
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*Query->BusType,
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Bus,
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BusInformation,
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*Query->ControllerType,
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ControllerNumber,
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ControllerInformation,
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0,
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0,
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NULL);
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goto EndLoop;
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}
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/* Not enough...caller also wants peripheral name */
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Status = RtlAppendUnicodeToString(&ControllerRootRegName, L"\\");
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Status |= RtlAppendUnicodeToString(&ControllerRootRegName, ArcTypes[*Query->PeripheralType]);
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/* Something messed up */
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if (!NT_SUCCESS(Status)) goto EndLoop;
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/* Set the Peripheral Number if specified */
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if (Query->PeripheralNumber && *Query->PeripheralNumber)
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{
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PeripheralNumber = *Query->PeripheralNumber;
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MaximumPeripheralNumber = PeripheralNumber + 1;
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} else {
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/* Find out how many Peripheral Numbers there are */
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InitializeObjectAttributes(
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&ObjectAttributes,
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&ControllerRootRegName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(&PeripheralKeyHandle, KEY_READ, &ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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/* How much buffer space */
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ZwQueryKey(PeripheralKeyHandle, KeyFullInformation, NULL, 0, &LenFullInformation);
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/* Allocate it */
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PeripheralFullInformation = ExAllocatePoolWithTag(PagedPool, LenFullInformation, TAG_IO_RESOURCE);
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/* Get the Information */
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Status = ZwQueryKey(PeripheralKeyHandle, KeyFullInformation, PeripheralFullInformation, LenFullInformation, &LenFullInformation);
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ZwClose(PeripheralKeyHandle);
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PeripheralKeyHandle = NULL;
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}
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/* No controller was found, go back to function but clean up first */
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if (!NT_SUCCESS(Status))
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{
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Status = STATUS_SUCCESS;
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goto EndLoop;
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}
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/* Find out Peripheral Number */
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PeripheralNumber = 0;
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MaximumPeripheralNumber = PeripheralFullInformation->SubKeys;
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/* Free Memory */
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ExFreePool(PeripheralFullInformation);
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PeripheralFullInformation = NULL;
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}
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/* Save Name */
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ControllerRegName = ControllerRootRegName;
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/* Loop through Peripherals */
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for (; PeripheralNumber < MaximumPeripheralNumber; PeripheralNumber++)
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{
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/* Restore Name */
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ControllerRootRegName = ControllerRegName;
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/* Peripheral Number to Registry String */
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Status = RtlIntegerToUnicodeString(PeripheralNumber, 10, &TempString);
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/* Create String */
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Status |= RtlAppendUnicodeToString(&ControllerRootRegName, L"\\");
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Status |= RtlAppendUnicodeStringToString(&ControllerRootRegName, &TempString);
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/* Something messed up */
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if (!NT_SUCCESS(Status)) break;
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/* Open the Registry Key */
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InitializeObjectAttributes(
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&ObjectAttributes,
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&ControllerRootRegName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(&PeripheralKeyHandle, KEY_READ, &ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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for (PeripheralLoop = 0; PeripheralLoop < 3; PeripheralLoop++)
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{
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/* Identifier String First */
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RtlInitUnicodeString(&PeripheralString, Strings[PeripheralLoop]);
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/* How much buffer space */
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ZwQueryValueKey(PeripheralKeyHandle, &PeripheralString, KeyValueFullInformation, NULL, 0, &LenKeyFullInformation);
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/* Allocate it */
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PeripheralInformation[PeripheralLoop] = ExAllocatePoolWithTag(PagedPool, LenKeyFullInformation, TAG_IO_RESOURCE);
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/* Get the Information */
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Status = ZwQueryValueKey(PeripheralKeyHandle, &PeripheralString, KeyValueFullInformation, PeripheralInformation[PeripheralLoop], LenKeyFullInformation, &LenKeyFullInformation);
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}
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/* Clean Up */
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ZwClose(PeripheralKeyHandle);
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PeripheralKeyHandle = NULL;
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/* We now have everything the caller could possibly want */
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if (NT_SUCCESS(Status))
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{
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#if 0
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Status = Query->CalloutRoutine(
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Query->Context,
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&ControllerRootRegName,
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*Query->BusType,
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Bus,
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BusInformation,
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*Query->ControllerType,
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ControllerNumber,
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ControllerInformation,
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*Query->PeripheralType,
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PeripheralNumber,
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PeripheralInformation);
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#else
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Status = STATUS_SUCCESS;
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#endif
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}
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/* Free the allocated memory */
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for (PeripheralLoop = 0; PeripheralLoop < 3; PeripheralLoop++)
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{
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if (PeripheralInformation[PeripheralLoop])
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{
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ExFreePool(PeripheralInformation[PeripheralLoop]);
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PeripheralInformation[PeripheralLoop] = NULL;
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}
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}
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/* Something Messed up */
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if (!NT_SUCCESS(Status)) break;
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}
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}
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EndLoop:
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/* Free the allocated memory */
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for (ControllerLoop = 0; ControllerLoop < 3; ControllerLoop++)
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{
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if (ControllerInformation[ControllerLoop])
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{
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ExFreePool(ControllerInformation[ControllerLoop]);
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ControllerInformation[ControllerLoop] = NULL;
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}
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}
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/* Something Messed up */
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if (!NT_SUCCESS(Status)) break;
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}
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return Status;
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}
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/*
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* IopQueryBusDescription
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*
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* FUNCTION:
|
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* Reads and returns Hardware information from the appropriate hardware
|
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* registry key. Helper sub of IoQueryDeviceDescription. Has two modes
|
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* of operation, either looking for Root Bus Types or for sub-Bus
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* information.
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*
|
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* ARGUMENTS:
|
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* Query - What the parent function wants.
|
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* RootKey - Which key to look in
|
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* RootKeyHandle - Handle to the key
|
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* Bus - Bus Number.
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* KeyIsRoot - Whether we are looking for Root Bus Types or
|
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* information under them.
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*
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* RETURNS:
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* Status
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*/
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NTSTATUS STDCALL
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IopQueryBusDescription(
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PIO_QUERY Query,
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UNICODE_STRING RootKey,
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HANDLE RootKeyHandle,
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PULONG Bus,
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BOOLEAN KeyIsRoot)
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{
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NTSTATUS Status;
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ULONG BusLoop;
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UNICODE_STRING SubRootRegName;
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UNICODE_STRING BusString;
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UNICODE_STRING SubBusString;
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ULONG LenBasicInformation;
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ULONG LenFullInformation;
|
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ULONG LenKeyFullInformation;
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ULONG LenKey;
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HANDLE SubRootKeyHandle;
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PKEY_FULL_INFORMATION FullInformation;
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PKEY_BASIC_INFORMATION BasicInformation;
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OBJECT_ATTRIBUTES ObjectAttributes;
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PKEY_VALUE_FULL_INFORMATION BusInformation[3] = {NULL, NULL, NULL};
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/* How much buffer space */
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Status = ZwQueryKey(RootKeyHandle, KeyFullInformation, NULL, 0, &LenFullInformation);
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|
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if (!NT_SUCCESS(Status))
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return Status;
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/* Allocate it */
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FullInformation = ExAllocatePoolWithTag(PagedPool, LenFullInformation, TAG_IO_RESOURCE);
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|
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/* Get the Information */
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Status = ZwQueryKey(RootKeyHandle, KeyFullInformation, FullInformation, LenFullInformation, &LenFullInformation);
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/* Everything was fine */
|
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if (NT_SUCCESS(Status))
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{
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/* Buffer needed for all the keys under this one */
|
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LenBasicInformation = FullInformation->MaxNameLen + sizeof(KEY_BASIC_INFORMATION);
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/* Allocate it */
|
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BasicInformation = ExAllocatePoolWithTag(PagedPool, LenBasicInformation, TAG_IO_RESOURCE);
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}
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|
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/* Deallocate the old Buffer */
|
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ExFreePool(FullInformation);
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|
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/* Try to find a Bus */
|
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for (BusLoop = 0; NT_SUCCESS(Status); BusLoop++)
|
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{
|
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/* Bus parameter was passed and number was matched */
|
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if ((Query->BusNumber) && (*(Query->BusNumber)) == *Bus) break;
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|
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/* Enumerate the Key */
|
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Status = ZwEnumerateKey(
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RootKeyHandle,
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BusLoop,
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KeyBasicInformation,
|
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BasicInformation,
|
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LenBasicInformation,
|
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&LenKey);
|
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|
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/* Everything enumerated */
|
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if (!NT_SUCCESS(Status)) break;
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|
||||
/* What Bus are we going to go down? (only check if this is a Root Key) */
|
||||
if (KeyIsRoot)
|
||||
{
|
||||
if (wcsncmp(BasicInformation->Name, L"MultifunctionAdapter", BasicInformation->NameLength / 2) &&
|
||||
wcsncmp(BasicInformation->Name, L"EisaAdapter", BasicInformation->NameLength / 2) &&
|
||||
wcsncmp(BasicInformation->Name, L"TcAdapter", BasicInformation->NameLength / 2))
|
||||
{
|
||||
/* Nothing found, check next */
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
/* Enumerate the Bus. */
|
||||
BusString.Buffer = BasicInformation->Name;
|
||||
BusString.Length = BasicInformation->NameLength;
|
||||
BusString.MaximumLength = BasicInformation->NameLength;
|
||||
|
||||
/* Open a handle to the Root Registry Key */
|
||||
InitializeObjectAttributes(
|
||||
&ObjectAttributes,
|
||||
&BusString,
|
||||
OBJ_CASE_INSENSITIVE,
|
||||
RootKeyHandle,
|
||||
NULL);
|
||||
|
||||
Status = ZwOpenKey(&SubRootKeyHandle, KEY_READ, &ObjectAttributes);
|
||||
|
||||
/* Go on if we can't */
|
||||
if (!NT_SUCCESS(Status)) continue;
|
||||
|
||||
/* Key opened. Create the path */
|
||||
SubRootRegName = RootKey;
|
||||
RtlAppendUnicodeToString(&SubRootRegName, L"\\");
|
||||
RtlAppendUnicodeStringToString(&SubRootRegName, &BusString);
|
||||
|
||||
if (!KeyIsRoot)
|
||||
{
|
||||
/* Parsing a SubBus-key */
|
||||
int SubBusLoop;
|
||||
PWSTR Strings[3] = {
|
||||
L"Identifier",
|
||||
L"Configuration Data",
|
||||
L"Component Information"};
|
||||
|
||||
for (SubBusLoop = 0; SubBusLoop < 3; SubBusLoop++)
|
||||
{
|
||||
/* Identifier String First */
|
||||
RtlInitUnicodeString(&SubBusString, Strings[SubBusLoop]);
|
||||
|
||||
/* How much buffer space */
|
||||
ZwQueryValueKey(SubRootKeyHandle, &SubBusString, KeyValueFullInformation, NULL, 0, &LenKeyFullInformation);
|
||||
|
||||
/* Allocate it */
|
||||
BusInformation[SubBusLoop] = ExAllocatePoolWithTag(PagedPool, LenKeyFullInformation, TAG_IO_RESOURCE);
|
||||
|
||||
/* Get the Information */
|
||||
Status = ZwQueryValueKey(SubRootKeyHandle, &SubBusString, KeyValueFullInformation, BusInformation[SubBusLoop], LenKeyFullInformation, &LenKeyFullInformation);
|
||||
}
|
||||
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
/* Do we have something */
|
||||
if (BusInformation[1] != NULL &&
|
||||
BusInformation[1]->DataLength != 0 &&
|
||||
/* Does it match what we want? */
|
||||
(((PCM_FULL_RESOURCE_DESCRIPTOR)((ULONG_PTR)BusInformation[1] + BusInformation[1]->DataOffset))->InterfaceType == *(Query->BusType)))
|
||||
{
|
||||
/* Found a bus */
|
||||
(*Bus)++;
|
||||
|
||||
/* Is it the bus we wanted */
|
||||
if (Query->BusNumber == NULL || *(Query->BusNumber) == *Bus)
|
||||
{
|
||||
/* If we don't want Controller Information, we're done... call the callback */
|
||||
if (Query->ControllerType == NULL)
|
||||
{
|
||||
Status = Query->CalloutRoutine(
|
||||
Query->Context,
|
||||
&SubRootRegName,
|
||||
*(Query->BusType),
|
||||
*Bus,
|
||||
BusInformation,
|
||||
0,
|
||||
0,
|
||||
NULL,
|
||||
0,
|
||||
0,
|
||||
NULL);
|
||||
} else {
|
||||
/* We want Controller Info...get it */
|
||||
Status = IopQueryDeviceDescription(Query, SubRootRegName, RootKeyHandle, *Bus, (PKEY_VALUE_FULL_INFORMATION*)BusInformation);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Free the allocated memory */
|
||||
for (SubBusLoop = 0; SubBusLoop < 3; SubBusLoop++)
|
||||
{
|
||||
if (BusInformation[SubBusLoop])
|
||||
{
|
||||
ExFreePool(BusInformation[SubBusLoop]);
|
||||
BusInformation[SubBusLoop] = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/* Exit the Loop if we found the bus */
|
||||
if (Query->BusNumber != NULL && *(Query->BusNumber) == *Bus)
|
||||
{
|
||||
ZwClose(SubRootKeyHandle);
|
||||
SubRootKeyHandle = NULL;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
/* Enumerate the buses below us recursively if we haven't found the bus yet */
|
||||
Status = IopQueryBusDescription(Query, SubRootRegName, SubRootKeyHandle, Bus, !KeyIsRoot);
|
||||
|
||||
/* Everything enumerated */
|
||||
if (Status == STATUS_NO_MORE_ENTRIES) Status = STATUS_SUCCESS;
|
||||
|
||||
ZwClose(SubRootKeyHandle);
|
||||
SubRootKeyHandle = NULL;
|
||||
}
|
||||
|
||||
/* Free the last remaining Allocated Memory */
|
||||
if (BasicInformation)
|
||||
ExFreePool(BasicInformation);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/* PUBLIC FUNCTIONS ***********************************************************/
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
|
|
@ -106,9 +731,25 @@ IoAssignResources(PUNICODE_STRING RegistryPath,
|
|||
}
|
||||
|
||||
/*
|
||||
* @unimplemented
|
||||
* FUNCTION:
|
||||
* Reads and returns Hardware information from the appropriate hardware registry key.
|
||||
*
|
||||
* ARGUMENTS:
|
||||
* BusType - MCA, ISA, EISA...specifies the Bus Type
|
||||
* BusNumber - Which bus of above should be queried
|
||||
* ControllerType - Specifices the Controller Type
|
||||
* ControllerNumber - Which of the controllers to query.
|
||||
* CalloutRoutine - Which function to call for each valid query.
|
||||
* Context - Value to pass to the callback.
|
||||
*
|
||||
* RETURNS:
|
||||
* Status
|
||||
*
|
||||
* STATUS:
|
||||
* @implemented
|
||||
*/
|
||||
NTSTATUS STDCALL
|
||||
|
||||
NTSTATUS NTAPI
|
||||
IoQueryDeviceDescription(PINTERFACE_TYPE BusType,
|
||||
PULONG BusNumber,
|
||||
PCONFIGURATION_TYPE ControllerType,
|
||||
|
|
@ -118,51 +759,51 @@ IoQueryDeviceDescription(PINTERFACE_TYPE BusType,
|
|||
PIO_QUERY_DEVICE_ROUTINE CalloutRoutine,
|
||||
PVOID Context)
|
||||
{
|
||||
#if 0
|
||||
OBJECT_ATTRIBUTES ObjectAttributes;
|
||||
NTSTATUS Status;
|
||||
PWCH BaseKeyName[] =
|
||||
L"\\Registry\\Machine\\Hardware\\MultifunctionAdapter\\0";
|
||||
HANDLE BaseKeyHandle;
|
||||
ULONG i;
|
||||
struct
|
||||
{
|
||||
KEY_BASIC_INFORMATION BasicInfo;
|
||||
WCH Name[255];
|
||||
} BasicInfo;
|
||||
NTSTATUS Status;
|
||||
ULONG BusLoopNumber = -1; /* Root Bus */
|
||||
OBJECT_ATTRIBUTES ObjectAttributes;
|
||||
UNICODE_STRING RootRegKey;
|
||||
HANDLE RootRegHandle;
|
||||
WCHAR RootRegString[] = L"\\REGISTRY\\MACHINE\\HARDWARE\\DESCRIPTION\\SYSTEM\\";
|
||||
IO_QUERY Query;
|
||||
|
||||
BaseKeyName = L"\\Registry\\Machine\\Hardware\\MultifunctionAdapter";
|
||||
InitializeObjectAttributes(&ObjectAttributes,
|
||||
BaseKeyName,
|
||||
0,
|
||||
NULL,
|
||||
NULL);
|
||||
Status = ZwOpenKey(&BaseKeyHandle,
|
||||
KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEY,
|
||||
&ObjectAttributes);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return(Status);
|
||||
}
|
||||
/* Set up the String */
|
||||
RootRegKey.Length = 0;
|
||||
RootRegKey.MaximumLength = 2048;
|
||||
RootRegKey.Buffer = ExAllocatePoolWithTag(PagedPool, RootRegKey.MaximumLength, TAG_IO_RESOURCE);
|
||||
RtlAppendUnicodeToString(&RootRegKey, RootRegString);
|
||||
|
||||
/* Open a handle to the Root Registry Key */
|
||||
InitializeObjectAttributes(
|
||||
&ObjectAttributes,
|
||||
&RootRegKey,
|
||||
OBJ_CASE_INSENSITIVE,
|
||||
NULL,
|
||||
NULL);
|
||||
|
||||
i = 0;
|
||||
for (;;)
|
||||
{
|
||||
Status = ZwEnumerateKey(BaseKeyHandle,
|
||||
i,
|
||||
KeyBasicInformation,
|
||||
&BasicInfo,
|
||||
sizeof(BasicInfo),
|
||||
&ResultLength);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
break;
|
||||
}
|
||||
Status = ZwOpenKey(&RootRegHandle, KEY_READ, &ObjectAttributes);
|
||||
|
||||
|
||||
}
|
||||
#endif
|
||||
return(STATUS_NOT_IMPLEMENTED);
|
||||
if (NT_SUCCESS(Status))
|
||||
{
|
||||
/* Use a helper function to loop though this key and get the info */
|
||||
Query.BusType = BusType;
|
||||
Query.BusNumber = BusNumber;
|
||||
Query.ControllerType = ControllerType;
|
||||
Query.ControllerNumber = ControllerNumber;
|
||||
Query.PeripheralType = PeripheralType;
|
||||
Query.PeripheralNumber = PeripheralNumber;
|
||||
Query.CalloutRoutine = CalloutRoutine;
|
||||
Query.Context = Context;
|
||||
Status = IopQueryBusDescription(&Query, RootRegKey, RootRegHandle, &BusLoopNumber, TRUE);
|
||||
|
||||
/* Close registry */
|
||||
ZwClose(RootRegHandle);
|
||||
}
|
||||
|
||||
/* Free Memory */
|
||||
ExFreePool(RootRegKey.Buffer);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue