mirror of
https://github.com/reactos/reactos.git
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545 lines
17 KiB
C
545 lines
17 KiB
C
/*
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* PnP Test
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* ReactOS Device Interface functions implementation
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*
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* Copyright 2003, 2004 Filip Navara <xnavara@volny.cz>
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* Copyright 2003, 2004 Matthew Brace <ismarc@austin.rr.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; see the file COPYING.LIB.
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* If not, write to the Free Software Foundation,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* INCLUDES *******************************************************************/
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#include <ddk/ntddk.h>
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#include "kmtest.h"
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//#define NDEBUG
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#include "debug.h"
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/* PUBLIC FUNCTIONS ***********************************************************/
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/*
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* IoGetDeviceInterfaces
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*
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* Returns a list of device interfaces of a particular device interface class.
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*
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* Parameters
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* InterfaceClassGuid
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* Points to a class GUID specifying the device interface class.
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*
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* PhysicalDeviceObject
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* Points to an optional PDO that narrows the search to only the
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* device interfaces of the device represented by the PDO.
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*
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* Flags
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* Specifies flags that modify the search for device interfaces. The
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* DEVICE_INTERFACE_INCLUDE_NONACTIVE flag specifies that the list of
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* returned symbolic links should contain also disabled device
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* interfaces in addition to the enabled ones.
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*
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* SymbolicLinkList
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* Points to a character pointer that is filled in on successful return
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* with a list of unicode strings identifying the device interfaces
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* that match the search criteria. The newly allocated buffer contains
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* a list of symbolic link names. Each unicode string in the list is
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* null-terminated; the end of the whole list is marked by an additional
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* NULL. The caller is responsible for freeing the buffer (ExFreePool)
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* when it is no longer needed.
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* If no device interfaces match the search criteria, this routine
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* returns STATUS_SUCCESS and the string contains a single NULL
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* character.
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*
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* Status
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* @unimplemented
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*
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* The parameters PhysicalDeviceObject and Flags aren't correctly
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* processed. Rest of the cases was tested under Win XP and the
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* function worked correctly.
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*/
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NTSTATUS STDCALL
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ReactOS_IoGetDeviceInterfaces(
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IN CONST GUID *InterfaceClassGuid,
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IN PDEVICE_OBJECT PhysicalDeviceObject OPTIONAL,
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IN ULONG Flags,
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OUT PWSTR *SymbolicLinkList)
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{
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PWCHAR BaseKeyString = L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\DeviceClasses\\";
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PWCHAR BaseInterfaceString = L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\";
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UNICODE_STRING GuidString;
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UNICODE_STRING BaseKeyName;
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UNICODE_STRING AliasKeyName;
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UNICODE_STRING SymbolicLink;
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UNICODE_STRING Control;
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UNICODE_STRING SubKeyName;
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UNICODE_STRING SymbolicLinkKeyName;
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UNICODE_STRING ControlKeyName;
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UNICODE_STRING TempString;
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HANDLE InterfaceKey;
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HANDLE SubKey;
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HANDLE SymbolicLinkKey;
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PKEY_FULL_INFORMATION fip;
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PKEY_FULL_INFORMATION bfip=NULL;
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PKEY_BASIC_INFORMATION bip;
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PKEY_VALUE_PARTIAL_INFORMATION vpip=NULL;
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PWCHAR SymLinkList = NULL;
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ULONG SymLinkListSize = 0;
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NTSTATUS Status;
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ULONG Size = 0;
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ULONG i = 0;
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ULONG j = 0;
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OBJECT_ATTRIBUTES ObjectAttributes;
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Status = RtlStringFromGUID(InterfaceClassGuid, &GuidString);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("RtlStringFromGUID() Failed.\n");
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return STATUS_INVALID_HANDLE;
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}
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RtlInitUnicodeString(&AliasKeyName, BaseInterfaceString);
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RtlInitUnicodeString(&SymbolicLink, L"SymbolicLink");
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RtlInitUnicodeString(&Control, L"\\Control");
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BaseKeyName.Length = wcslen(BaseKeyString) * sizeof(WCHAR);
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BaseKeyName.MaximumLength = BaseKeyName.Length + (38 * sizeof(WCHAR));
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BaseKeyName.Buffer = ExAllocatePool(
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NonPagedPool,
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BaseKeyName.MaximumLength);
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ASSERT(BaseKeyName.Buffer != NULL);
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wcscpy(BaseKeyName.Buffer, BaseKeyString);
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RtlAppendUnicodeStringToString(&BaseKeyName, &GuidString);
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if (PhysicalDeviceObject)
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{
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WCHAR GuidBuffer[40];
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UNICODE_STRING PdoGuidString;
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RtlFreeUnicodeString(&BaseKeyName);
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IoGetDeviceProperty(
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PhysicalDeviceObject,
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DevicePropertyClassGuid,
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sizeof(GuidBuffer),
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GuidBuffer,
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&Size);
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RtlInitUnicodeString(&PdoGuidString, GuidBuffer);
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if (RtlCompareUnicodeString(&GuidString, &PdoGuidString, TRUE))
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{
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DPRINT("Inconsistent Guid's asked for in IoGetDeviceInterfaces()\n");
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return STATUS_INVALID_HANDLE;
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}
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DPRINT("IoGetDeviceInterfaces() called with PDO, not implemented.\n");
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return STATUS_NOT_IMPLEMENTED;
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}
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else
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{
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InitializeObjectAttributes(
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&ObjectAttributes,
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&BaseKeyName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(
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&InterfaceKey,
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KEY_READ,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwOpenKey() Failed. (0x%X)\n", Status);
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RtlFreeUnicodeString(&BaseKeyName);
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return Status;
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}
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Status = ZwQueryKey(
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InterfaceKey,
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KeyFullInformation,
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NULL,
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0,
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&Size);
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if (Status != STATUS_BUFFER_TOO_SMALL)
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{
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DPRINT("ZwQueryKey() Failed. (0x%X)\n", Status);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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return Status;
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}
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fip = (PKEY_FULL_INFORMATION)ExAllocatePool(NonPagedPool, Size);
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ASSERT(fip != NULL);
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Status = ZwQueryKey(
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InterfaceKey,
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KeyFullInformation,
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fip,
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Size,
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&Size);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwQueryKey() Failed. (0x%X)\n", Status);
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ExFreePool(fip);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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return Status;
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}
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for (; i < fip->SubKeys; i++)
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{
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Status = ZwEnumerateKey(
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InterfaceKey,
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i,
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KeyBasicInformation,
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NULL,
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0,
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&Size);
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if (Status != STATUS_BUFFER_TOO_SMALL)
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{
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DPRINT("ZwEnumerateKey() Failed.(0x%X)\n", Status);
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ExFreePool(fip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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return Status;
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}
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bip = (PKEY_BASIC_INFORMATION)ExAllocatePool(NonPagedPool, Size);
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ASSERT(bip != NULL);
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Status = ZwEnumerateKey(
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InterfaceKey,
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i,
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KeyBasicInformation,
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bip,
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Size,
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&Size);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwEnumerateKey() Failed.(0x%X)\n", Status);
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ExFreePool(fip);
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ExFreePool(bip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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return Status;
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}
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SubKeyName.Length = 0;
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SubKeyName.MaximumLength = BaseKeyName.Length + bip->NameLength + sizeof(WCHAR);
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SubKeyName.Buffer = ExAllocatePool(NonPagedPool, SubKeyName.MaximumLength);
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ASSERT(SubKeyName.Buffer != NULL);
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TempString.Length = TempString.MaximumLength = bip->NameLength;
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TempString.Buffer = bip->Name;
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RtlCopyUnicodeString(&SubKeyName, &BaseKeyName);
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RtlAppendUnicodeToString(&SubKeyName, L"\\");
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RtlAppendUnicodeStringToString(&SubKeyName, &TempString);
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ExFreePool(bip);
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InitializeObjectAttributes(
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&ObjectAttributes,
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&SubKeyName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(
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&SubKey,
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KEY_READ,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwOpenKey() Failed. (0x%X)\n", Status);
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ExFreePool(fip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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return Status;
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}
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Status = ZwQueryKey(
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SubKey,
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KeyFullInformation,
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NULL,
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0,
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&Size);
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if (Status != STATUS_BUFFER_TOO_SMALL)
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{
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DPRINT("ZwQueryKey() Failed. (0x%X)\n", Status);
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ExFreePool(fip);
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RtlFreeUnicodeString(&BaseKeyName);
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RtlFreeUnicodeString(&SubKeyName);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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bfip = (PKEY_FULL_INFORMATION)ExAllocatePool(NonPagedPool, Size);
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ASSERT(bfip != NULL);
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Status = ZwQueryKey(
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SubKey,
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KeyFullInformation,
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bfip,
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Size,
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&Size);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwQueryKey() Failed. (0x%X)\n", Status);
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ExFreePool(fip);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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for(j = 0; j < bfip->SubKeys; j++)
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{
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Status = ZwEnumerateKey(
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SubKey,
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j,
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KeyBasicInformation,
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NULL,
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0,
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&Size);
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if (Status == STATUS_NO_MORE_ENTRIES)
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continue;
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if (Status != STATUS_BUFFER_TOO_SMALL)
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{
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DPRINT("ZwEnumerateKey() Failed.(0x%X)\n", Status);
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ExFreePool(bfip);
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ExFreePool(fip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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bip = (PKEY_BASIC_INFORMATION)ExAllocatePool(NonPagedPool, Size);
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ASSERT(bip != NULL);
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Status = ZwEnumerateKey(
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SubKey,
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j,
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KeyBasicInformation,
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bip,
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Size,
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&Size);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwEnumerateKey() Failed.(0x%X)\n", Status);
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ExFreePool(fip);
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ExFreePool(bfip);
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ExFreePool(bip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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if (!wcsncmp(bip->Name, L"Control", bip->NameLength))
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{
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continue;
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}
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SymbolicLinkKeyName.Length = 0;
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SymbolicLinkKeyName.MaximumLength = SubKeyName.Length + bip->NameLength + sizeof(WCHAR);
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SymbolicLinkKeyName.Buffer = ExAllocatePool(NonPagedPool, SymbolicLinkKeyName.MaximumLength);
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ASSERT(SymbolicLinkKeyName.Buffer != NULL);
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TempString.Length = TempString.MaximumLength = bip->NameLength;
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TempString.Buffer = bip->Name;
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RtlCopyUnicodeString(&SymbolicLinkKeyName, &SubKeyName);
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RtlAppendUnicodeToString(&SymbolicLinkKeyName, L"\\");
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RtlAppendUnicodeStringToString(&SymbolicLinkKeyName, &TempString);
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ControlKeyName.Length = 0;
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ControlKeyName.MaximumLength = SymbolicLinkKeyName.Length + Control.Length + sizeof(WCHAR);
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ControlKeyName.Buffer = ExAllocatePool(NonPagedPool, ControlKeyName.MaximumLength);
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ASSERT(ControlKeyName.Buffer != NULL);
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RtlCopyUnicodeString(&ControlKeyName, &SymbolicLinkKeyName);
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RtlAppendUnicodeStringToString(&ControlKeyName, &Control);
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ExFreePool(bip);
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InitializeObjectAttributes(
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&ObjectAttributes,
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&SymbolicLinkKeyName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(
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&SymbolicLinkKey,
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KEY_READ,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwOpenKey() Failed. (0x%X)\n", Status);
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ExFreePool(fip);
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ExFreePool(bfip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SymbolicLinkKeyName);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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Status = ZwQueryValueKey(
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SymbolicLinkKey,
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&SymbolicLink,
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KeyValuePartialInformation,
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NULL,
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0,
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&Size);
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if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
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continue;
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if (Status != STATUS_BUFFER_TOO_SMALL)
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{
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DPRINT("ZwQueryValueKey() Failed.(0x%X)\n", Status);
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ExFreePool(fip);
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ExFreePool(bfip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SymbolicLinkKeyName);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SymbolicLinkKey);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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vpip = (PKEY_VALUE_PARTIAL_INFORMATION)ExAllocatePool(NonPagedPool, Size);
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ASSERT(vpip != NULL);
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Status = ZwQueryValueKey(
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SymbolicLinkKey,
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&SymbolicLink,
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KeyValuePartialInformation,
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vpip,
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Size,
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&Size);
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if (!NT_SUCCESS(Status))
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{
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DPRINT("ZwQueryValueKey() Failed.(0x%X)\n", Status);
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ExFreePool(fip);
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ExFreePool(bfip);
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ExFreePool(vpip);
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if (SymLinkList != NULL)
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ExFreePool(SymLinkList);
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RtlFreeUnicodeString(&SymbolicLinkKeyName);
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RtlFreeUnicodeString(&SubKeyName);
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(SymbolicLinkKey);
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ZwClose(SubKey);
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ZwClose(InterfaceKey);
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return Status;
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}
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Status = RtlCheckRegistryKey(RTL_REGISTRY_ABSOLUTE, ControlKeyName.Buffer);
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if (NT_SUCCESS(Status))
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{
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/* Put the name in the string here */
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if (SymLinkList == NULL)
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{
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SymLinkListSize = vpip->DataLength;
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SymLinkList = ExAllocatePool(NonPagedPool, SymLinkListSize + sizeof(WCHAR));
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ASSERT(SymLinkList != NULL);
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RtlCopyMemory(SymLinkList, vpip->Data, vpip->DataLength);
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SymLinkList[vpip->DataLength / sizeof(WCHAR)] = 0;
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SymLinkList[1] = '?';
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}
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else
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{
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PWCHAR OldSymLinkList;
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ULONG OldSymLinkListSize;
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PWCHAR SymLinkListPtr;
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OldSymLinkList = SymLinkList;
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OldSymLinkListSize = SymLinkListSize;
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SymLinkListSize += vpip->DataLength;
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SymLinkList = ExAllocatePool(NonPagedPool, SymLinkListSize + sizeof(WCHAR));
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ASSERT(SymLinkList != NULL);
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RtlCopyMemory(SymLinkList, OldSymLinkList, OldSymLinkListSize);
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ExFreePool(OldSymLinkList);
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SymLinkListPtr = SymLinkList + (OldSymLinkListSize / sizeof(WCHAR));
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RtlCopyMemory(SymLinkListPtr, vpip->Data, vpip->DataLength);
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SymLinkListPtr[vpip->DataLength / sizeof(WCHAR)] = 0;
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SymLinkListPtr[1] = '?';
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}
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}
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RtlFreeUnicodeString(&SymbolicLinkKeyName);
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RtlFreeUnicodeString(&ControlKeyName);
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ZwClose(SymbolicLinkKey);
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}
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ExFreePool(vpip);
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RtlFreeUnicodeString(&SubKeyName);
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ZwClose(SubKey);
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}
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if (SymLinkList != NULL)
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{
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SymLinkList[SymLinkListSize / sizeof(WCHAR)] = 0;
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}
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else
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{
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SymLinkList = ExAllocatePool(NonPagedPool, 2 * sizeof(WCHAR));
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SymLinkList[0] = 0;
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}
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*SymbolicLinkList = SymLinkList;
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RtlFreeUnicodeString(&BaseKeyName);
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ZwClose(InterfaceKey);
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ExFreePool(bfip);
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ExFreePool(fip);
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}
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|