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https://github.com/reactos/reactos.git
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630 lines
21 KiB
C
630 lines
21 KiB
C
/*
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* SetupAPI interface-related functions
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*
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* Copyright 2000 Andreas Mohr for CodeWeavers
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* 2005-2006 Hervé Poussineau (hpoussin@reactos.org)
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "setupapi_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
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/* Unicode constants */
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static const WCHAR AddInterface[] = {'A','d','d','I','n','t','e','r','f','a','c','e',0};
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static const WCHAR ClassGUID[] = {'C','l','a','s','s','G','U','I','D',0};
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static const WCHAR Control[] = {'C','o','n','t','r','o','l',0};
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static const WCHAR DeviceInstance[] = {'D','e','v','i','c','e','I','n','s','t','a','n','c','e',0};
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static const WCHAR DotInterfaces[] = {'.','I','n','t','e','r','f','a','c','e','s',0};
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static const WCHAR Linked[] = {'L','i','n','k','e','d',0};
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static const WCHAR SymbolicLink[] = {'S','y','m','b','o','l','i','c','L','i','n','k',0};
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static BOOL
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CreateDeviceInterface(
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IN struct DeviceInfo* deviceInfo,
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IN LPCWSTR SymbolicLink,
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IN LPCGUID pInterfaceGuid,
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OUT struct DeviceInterface **pDeviceInterface)
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{
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struct DeviceInterface *deviceInterface;
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*pDeviceInterface = NULL;
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deviceInterface = HeapAlloc(GetProcessHeap(), 0,
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FIELD_OFFSET(struct DeviceInterface, SymbolicLink) + (strlenW(SymbolicLink) + 1) * sizeof(WCHAR));
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if (!deviceInterface)
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{
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SetLastError(ERROR_NOT_ENOUGH_MEMORY);
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return FALSE;
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}
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deviceInterface->DeviceInfo = deviceInfo;
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strcpyW(deviceInterface->SymbolicLink, SymbolicLink);
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deviceInterface->Flags = 0; /* Flags will be updated later */
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memcpy(&deviceInterface->InterfaceClassGuid, pInterfaceGuid, sizeof(GUID));
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*pDeviceInterface = deviceInterface;
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return TRUE;
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}
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BOOL
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DestroyDeviceInterface(
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struct DeviceInterface* deviceInterface)
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{
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return HeapFree(GetProcessHeap(), 0, deviceInterface);
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}
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LONG
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SETUP_CreateInterfaceList(
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struct DeviceInfoSet *list,
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PCWSTR MachineName,
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CONST GUID *InterfaceGuid,
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PCWSTR DeviceInstanceW /* OPTIONAL */,
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BOOL OnlyPresentInterfaces)
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{
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HKEY hInterfaceKey; /* HKLM\SYSTEM\CurrentControlSet\Control\DeviceClasses\{GUID} */
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HKEY hDeviceInstanceKey; /* HKLM\SYSTEM\CurrentControlSet\Control\DeviceClasses\{GUID}\##?#{InstancePath} */
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HKEY hReferenceKey; /* HKLM\SYSTEM\CurrentControlSet\Control\DeviceClasses\{GUID}\##?#{InstancePath}\#{ReferenceString} */
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HKEY hControlKey; /* HKLM\SYSTEM\CurrentControlSet\Control\DeviceClasses\{GUID}\##?#{InstancePath}\#{ReferenceString}\Control */
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HKEY hEnumKey; /* HKLM\SYSTEM\CurrentControlSet\Enum */
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HKEY hKey; /* HKLM\SYSTEM\CurrentControlSet\Enum\{Instance\Path} */
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LONG rc;
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WCHAR KeyBuffer[max(MAX_PATH, MAX_GUID_STRING_LEN) + 1];
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PWSTR pSymbolicLink = NULL;
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PWSTR InstancePath = NULL;
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DWORD i, j;
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DWORD dwLength, dwInstancePathLength;
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DWORD dwRegType;
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DWORD LinkedValue;
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GUID ClassGuid;
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struct DeviceInfo *deviceInfo;
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hInterfaceKey = INVALID_HANDLE_VALUE;
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hDeviceInstanceKey = NULL;
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hReferenceKey = NULL;
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/* Open registry key related to this interface */
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hInterfaceKey = SetupDiOpenClassRegKeyExW(InterfaceGuid, KEY_ENUMERATE_SUB_KEYS, DIOCR_INTERFACE, MachineName, NULL);
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if (hInterfaceKey == INVALID_HANDLE_VALUE)
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{
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rc = GetLastError();
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goto cleanup;
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}
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/* Enumerate sub keys of hInterfaceKey */
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i = 0;
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while (TRUE)
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{
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dwLength = sizeof(KeyBuffer) / sizeof(KeyBuffer[0]);
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rc = RegEnumKeyExW(hInterfaceKey, i, KeyBuffer, &dwLength, NULL, NULL, NULL, NULL);
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if (rc == ERROR_NO_MORE_ITEMS)
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break;
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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i++;
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/* Open sub key */
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if (hDeviceInstanceKey != NULL)
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RegCloseKey(hDeviceInstanceKey);
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rc = RegOpenKeyExW(hInterfaceKey, KeyBuffer, 0, KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, &hDeviceInstanceKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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/* Read DeviceInstance */
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rc = RegQueryValueExW(hDeviceInstanceKey, DeviceInstance, NULL, &dwRegType, NULL, &dwInstancePathLength);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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if (dwRegType != REG_SZ)
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{
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rc = ERROR_GEN_FAILURE;
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goto cleanup;
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}
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HeapFree(GetProcessHeap(), 0, InstancePath);
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InstancePath = HeapAlloc(GetProcessHeap(), 0, dwInstancePathLength + sizeof(WCHAR));
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if (!InstancePath)
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{
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rc = ERROR_NOT_ENOUGH_MEMORY;
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goto cleanup;
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}
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rc = RegQueryValueExW(hDeviceInstanceKey, DeviceInstance, NULL, NULL, (LPBYTE)InstancePath, &dwInstancePathLength);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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InstancePath[dwInstancePathLength / sizeof(WCHAR)] = '\0';
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TRACE("DeviceInstance %s\n", debugstr_w(InstancePath));
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if (DeviceInstanceW)
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{
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/* Check if device enumerator is not the right one */
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if (strcmpW(DeviceInstanceW, InstancePath) != 0)
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continue;
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}
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/* Find class GUID associated to the device instance */
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rc = RegOpenKeyExW(
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list->HKLM,
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REGSTR_PATH_SYSTEMENUM,
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0, /* Options */
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0,
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&hEnumKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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rc = RegOpenKeyExW(
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hEnumKey,
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InstancePath,
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0, /* Options */
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KEY_QUERY_VALUE,
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&hKey);
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RegCloseKey(hEnumKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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dwLength = sizeof(KeyBuffer) - sizeof(WCHAR);
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rc = RegQueryValueExW(hKey, ClassGUID, NULL, NULL, (LPBYTE)KeyBuffer, &dwLength);
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RegCloseKey(hKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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KeyBuffer[dwLength / sizeof(WCHAR)] = '\0';
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KeyBuffer[37] = '\0'; /* Replace the } by a NULL character */
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if (UuidFromStringW(&KeyBuffer[1], &ClassGuid) != RPC_S_OK)
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{
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rc = ERROR_GEN_FAILURE;
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goto cleanup;
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}
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TRACE("ClassGUID %s\n", debugstr_guid(&ClassGuid));
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/* If current device doesn't match the list GUID (if any), skip this entry */
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if (!IsEqualIID(&list->ClassGuid, &GUID_NULL) && !IsEqualIID(&list->ClassGuid, &ClassGuid))
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continue;
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/* Enumerate subkeys of hDeviceInstanceKey (ie "#ReferenceString" in IoRegisterDeviceInterface). Skip entries that don't start with '#' */
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j = 0;
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while (TRUE)
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{
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struct DeviceInterface *interfaceInfo;
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dwLength = sizeof(KeyBuffer) / sizeof(KeyBuffer[0]);
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rc = RegEnumKeyExW(hDeviceInstanceKey, j, KeyBuffer, &dwLength, NULL, NULL, NULL, NULL);
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if (rc == ERROR_NO_MORE_ITEMS)
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break;
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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j++;
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if (KeyBuffer[0] != '#')
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/* This entry doesn't represent an interesting entry */
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continue;
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/* Open sub key */
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if (hReferenceKey != NULL)
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RegCloseKey(hReferenceKey);
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rc = RegOpenKeyExW(hDeviceInstanceKey, KeyBuffer, 0, KEY_QUERY_VALUE, &hReferenceKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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/* Read SymbolicLink value */
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rc = RegQueryValueExW(hReferenceKey, SymbolicLink, NULL, &dwRegType, NULL, &dwLength);
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if (rc != ERROR_SUCCESS )
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goto cleanup;
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if (dwRegType != REG_SZ)
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{
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rc = ERROR_GEN_FAILURE;
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goto cleanup;
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}
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/* We have found a device */
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/* Step 1. Create a device info element */
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if (!CreateDeviceInfo(list, InstancePath, &ClassGuid, &deviceInfo))
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{
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rc = GetLastError();
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goto cleanup;
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}
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TRACE("Adding device %s to list\n", debugstr_w(InstancePath));
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InsertTailList(&list->ListHead, &deviceInfo->ListEntry);
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/* Step 2. Create an interface list for this element */
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HeapFree(GetProcessHeap(), 0, pSymbolicLink);
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pSymbolicLink = HeapAlloc(GetProcessHeap(), 0, (dwLength + 1) * sizeof(WCHAR));
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if (!pSymbolicLink)
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{
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rc = ERROR_NOT_ENOUGH_MEMORY;
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goto cleanup;
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}
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rc = RegQueryValueExW(hReferenceKey, SymbolicLink, NULL, NULL, (LPBYTE)pSymbolicLink, &dwLength);
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pSymbolicLink[dwLength / sizeof(WCHAR)] = '\0';
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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if (!CreateDeviceInterface(deviceInfo, pSymbolicLink, InterfaceGuid, &interfaceInfo))
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{
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rc = GetLastError();
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goto cleanup;
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}
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/* Step 3. Update flags */
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if (KeyBuffer[1] == '\0')
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interfaceInfo->Flags |= SPINT_DEFAULT;
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rc = RegOpenKeyExW(hReferenceKey, Control, 0, KEY_QUERY_VALUE, &hControlKey);
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if (rc != ERROR_SUCCESS)
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{
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#if 0
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if (OnlyPresentInterfaces)
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{
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DestroyDeviceInterface(interfaceInfo);
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continue;
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}
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else
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interfaceInfo->Flags |= SPINT_REMOVED;
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#endif
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}
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else
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{
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dwLength = sizeof(DWORD);
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if (RegQueryValueExW(hControlKey, Linked, NULL, &dwRegType, (LPBYTE)&LinkedValue, &dwLength) == ERROR_SUCCESS
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&& dwRegType == REG_DWORD && LinkedValue)
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interfaceInfo->Flags |= SPINT_ACTIVE;
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RegCloseKey(hControlKey);
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}
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TRACE("Adding interface %s to list\n", debugstr_w(pSymbolicLink));
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InsertTailList(&deviceInfo->InterfaceListHead, &interfaceInfo->ListEntry);
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}
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}
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rc = ERROR_SUCCESS;
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cleanup:
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if (hReferenceKey != NULL)
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RegCloseKey(hReferenceKey);
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if (hDeviceInstanceKey != NULL)
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RegCloseKey(hDeviceInstanceKey);
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if (hInterfaceKey != INVALID_HANDLE_VALUE)
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RegCloseKey(hInterfaceKey);
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HeapFree(GetProcessHeap(), 0, InstancePath);
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HeapFree(GetProcessHeap(), 0, pSymbolicLink);
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return rc;
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}
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static LPWSTR
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CreateSymbolicLink(
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IN LPGUID InterfaceGuid,
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IN LPCWSTR ReferenceString,
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IN struct DeviceInfo *devInfo)
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{
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DWORD Length, Index, Offset;
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LPWSTR Key;
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Length = wcslen(devInfo->instanceId) + 4 /* prepend ##?# */ + 41 /* #{GUID} + */ + 1 /* zero byte */;
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Key = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Length * sizeof(WCHAR));
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if (!Key)
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return NULL;
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wcscpy(Key, L"##?#");
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wcscat(Key, devInfo->instanceId);
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for(Index = 4; Index < Length; Index++)
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{
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if (Key[Index] == L'\\')
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{
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Key[Index] = L'#';
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}
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}
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wcscat(Key, L"#");
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Offset = wcslen(Key);
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pSetupStringFromGuid(InterfaceGuid, Key + Offset, Length - Offset);
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return Key;
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}
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static BOOL
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InstallOneInterface(
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IN LPGUID InterfaceGuid,
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IN LPCWSTR ReferenceString,
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IN LPCWSTR InterfaceSection,
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IN UINT InterfaceFlags,
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IN HINF hInf,
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IN HDEVINFO DeviceInfoSet,
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IN struct DeviceInfo *devInfo)
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{
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HKEY hKey, hRefKey;
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LPWSTR Path;
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SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
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struct DeviceInterface *DevItf = NULL;
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if (InterfaceFlags != 0)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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TRACE("Need to InstallOneInterface(%s %s %s %u) hInf %p DeviceInfoSet %p devInfo %p instanceId %s\n", debugstr_guid(InterfaceGuid),
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debugstr_w(ReferenceString), debugstr_w(InterfaceSection), InterfaceFlags, hInf, DeviceInfoSet, devInfo, debugstr_w(devInfo->instanceId));
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Path = CreateSymbolicLink(InterfaceGuid, ReferenceString, devInfo);
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if (!Path)
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return FALSE;
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CreateDeviceInterface(devInfo, Path, InterfaceGuid, &DevItf);
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HeapFree(GetProcessHeap(), 0, Path);
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if (!DevItf)
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{
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return FALSE;
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}
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memcpy(&DeviceInterfaceData.InterfaceClassGuid, &DevItf->InterfaceClassGuid, sizeof(GUID));
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DeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
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DeviceInterfaceData.Flags = DevItf->Flags;
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DeviceInterfaceData.Reserved = (ULONG_PTR)DevItf;
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hKey = SetupDiCreateDeviceInterfaceRegKeyW(DeviceInfoSet, &DeviceInterfaceData, 0, KEY_ALL_ACCESS, NULL, 0);
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HeapFree(GetProcessHeap(), 0, DevItf);
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if (hKey == INVALID_HANDLE_VALUE)
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{
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return FALSE;
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}
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if (ReferenceString)
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{
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Path = HeapAlloc(GetProcessHeap(), 0, (wcslen(ReferenceString) + 2) * sizeof(WCHAR));
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if (!Path)
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{
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RegCloseKey(hKey);
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return FALSE;
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}
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wcscpy(Path, L"#");
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wcscat(Path, ReferenceString);
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if (RegCreateKeyExW(hKey, Path, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hRefKey, NULL) != ERROR_SUCCESS)
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{
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ERR("failed to create key %s %lx\n", debugstr_w(Path), GetLastError());
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HeapFree(GetProcessHeap(), 0, Path);
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return FALSE;
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}
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RegCloseKey(hKey);
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hKey = hRefKey;
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HeapFree(GetProcessHeap(), 0, Path);
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}
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if (RegCreateKeyExW(hKey, L"Device Parameters", 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hRefKey, NULL) != ERROR_SUCCESS)
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{
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RegCloseKey(hKey);
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return FALSE;
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}
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return SetupInstallFromInfSectionW(NULL, /* FIXME */ hInf, InterfaceSection, SPINST_REGISTRY, hRefKey, NULL, 0, NULL, NULL, NULL, NULL);
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}
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/***********************************************************************
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* SetupDiInstallDeviceInterfaces (SETUPAPI.@)
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*/
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BOOL WINAPI
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SetupDiInstallDeviceInterfaces(
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IN HDEVINFO DeviceInfoSet,
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IN PSP_DEVINFO_DATA DeviceInfoData)
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{
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struct DeviceInfoSet *list = NULL;
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BOOL ret = FALSE;
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TRACE("%p %p\n", DeviceInfoSet, DeviceInfoData);
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if (!DeviceInfoSet)
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SetLastError(ERROR_INVALID_PARAMETER);
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else if (DeviceInfoSet == (HDEVINFO)INVALID_HANDLE_VALUE)
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SetLastError(ERROR_INVALID_HANDLE);
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else if ((list = (struct DeviceInfoSet *)DeviceInfoSet)->magic != SETUP_DEVICE_INFO_SET_MAGIC)
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SetLastError(ERROR_INVALID_HANDLE);
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else if (!DeviceInfoData)
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SetLastError(ERROR_INVALID_PARAMETER);
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else if (DeviceInfoData && DeviceInfoData->Reserved == 0)
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SetLastError(ERROR_INVALID_USER_BUFFER);
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else if (DeviceInfoData && DeviceInfoData->cbSize != sizeof(SP_DEVINFO_DATA))
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SetLastError(ERROR_INVALID_USER_BUFFER);
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else
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{
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struct DeviceInfo *devInfo;
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struct DriverInfoElement *SelectedDriver = NULL;
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SP_DEVINSTALL_PARAMS_W InstallParams;
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WCHAR SectionName[MAX_PATH];
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DWORD SectionNameLength = 0;
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INFCONTEXT ContextInterface;
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LPWSTR InterfaceGuidString = NULL;
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LPWSTR ReferenceString = NULL;
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LPWSTR InterfaceSection = NULL;
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INT InterfaceFlags;
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GUID InterfaceGuid;
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BOOL Result;
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devInfo = (struct DeviceInfo *)DeviceInfoData->Reserved;
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InstallParams.cbSize = sizeof(SP_DEVINSTALL_PARAMS_W);
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Result = SetupDiGetDeviceInstallParamsW(DeviceInfoSet, DeviceInfoData, &InstallParams);
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if (!Result)
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goto cleanup;
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SelectedDriver = (struct DriverInfoElement *)InstallParams.Reserved;
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if (SelectedDriver == NULL)
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{
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SetLastError(ERROR_NO_DRIVER_SELECTED);
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ret = FALSE;
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goto cleanup;
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}
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/* Get .Interfaces section name */
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Result = SetupDiGetActualSectionToInstallW(
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SelectedDriver->InfFileDetails->hInf,
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SelectedDriver->Details.SectionName,
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SectionName, MAX_PATH, &SectionNameLength, NULL);
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if (!Result || SectionNameLength > MAX_PATH - strlenW(DotInterfaces) - 1)
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goto cleanup;
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strcatW(SectionName, DotInterfaces);
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ret = TRUE;
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Result = SetupFindFirstLineW(
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SelectedDriver->InfFileDetails->hInf,
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SectionName,
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AddInterface,
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&ContextInterface);
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while (ret && Result)
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{
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ret = GetStringField(&ContextInterface, 1, &InterfaceGuidString);
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if (!ret)
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goto cleanup;
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else if (strlenW(InterfaceGuidString) != MAX_GUID_STRING_LEN - 1)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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ret = FALSE;
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goto cleanup;
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}
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InterfaceGuidString[MAX_GUID_STRING_LEN - 2] = '\0'; /* Replace the } by a NULL character */
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if (UuidFromStringW(&InterfaceGuidString[1], &InterfaceGuid) != RPC_S_OK)
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{
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/* Bad GUID, skip the entry */
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
ret = FALSE;
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = GetStringField(&ContextInterface, 2, &ReferenceString);
|
|
if (!ret)
|
|
goto cleanup;
|
|
|
|
ret = GetStringField(&ContextInterface, 3, &InterfaceSection);
|
|
if (!ret)
|
|
{
|
|
/* ReferenceString is optional */
|
|
InterfaceSection = ReferenceString;
|
|
ReferenceString = NULL;
|
|
}
|
|
|
|
ret = SetupGetIntField(
|
|
&ContextInterface,
|
|
(ReferenceString ? 4 : 3), /* Field index */
|
|
&InterfaceFlags);
|
|
if (!ret)
|
|
{
|
|
if (GetLastError() == ERROR_INVALID_PARAMETER)
|
|
{
|
|
/* The field may be empty. Ignore the error */
|
|
InterfaceFlags = 0;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
goto cleanup;
|
|
}
|
|
|
|
/* Install Interface */
|
|
ret = InstallOneInterface(&InterfaceGuid, ReferenceString, InterfaceSection, InterfaceFlags, SelectedDriver->InfFileDetails->hInf, DeviceInfoSet, devInfo);
|
|
|
|
cleanup:
|
|
MyFree(InterfaceGuidString);
|
|
if (ReferenceString)
|
|
MyFree(ReferenceString);
|
|
MyFree(InterfaceSection);
|
|
InterfaceGuidString = ReferenceString = InterfaceSection = NULL;
|
|
Result = SetupFindNextMatchLineW(&ContextInterface, AddInterface, &ContextInterface);
|
|
}
|
|
}
|
|
|
|
TRACE("Returning %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
HKEY WINAPI
|
|
SetupDiOpenDeviceInterfaceRegKey(
|
|
IN HDEVINFO DeviceInfoSet, IN PSP_DEVICE_INTERFACE_DATA DeviceInterfaceData, IN DWORD Reserved, IN REGSAM samDesired)
|
|
{
|
|
HKEY hKey = INVALID_HANDLE_VALUE, hDevKey;
|
|
struct DeviceInfoSet * list;
|
|
|
|
TRACE("%p %p %p 0x%08x 0x%08x)\n", DeviceInfoSet, DeviceInterfaceData, Reserved, samDesired);
|
|
|
|
if (!DeviceInfoSet)
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
else if (DeviceInfoSet == (HDEVINFO)INVALID_HANDLE_VALUE)
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
else if ((list = (struct DeviceInfoSet *)DeviceInfoSet)->magic != SETUP_DEVICE_INFO_SET_MAGIC)
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
else if (!DeviceInterfaceData)
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
else if (DeviceInterfaceData && DeviceInterfaceData->Reserved == 0)
|
|
SetLastError(ERROR_INVALID_USER_BUFFER);
|
|
else if (DeviceInterfaceData && DeviceInterfaceData->cbSize != sizeof(SP_DEVICE_INTERFACE_DATA))
|
|
SetLastError(ERROR_INVALID_USER_BUFFER);
|
|
else
|
|
{
|
|
struct DeviceInterface *DevItf;
|
|
LPWSTR Path, Guid, Slash;
|
|
DWORD Length;
|
|
DevItf = (struct DeviceInterface *)DeviceInterfaceData->Reserved;
|
|
|
|
Length = wcslen(DevItf->SymbolicLink);
|
|
|
|
Path = HeapAlloc(GetProcessHeap(), 0, (Length+2) * sizeof(WCHAR));
|
|
if (!Path)
|
|
{
|
|
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
wcscpy(Path, DevItf->SymbolicLink);
|
|
|
|
Guid = wcsrchr(Path, '}');
|
|
Slash = wcsrchr(Path, '\\');
|
|
if (!Guid || !Slash)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
if ((ULONG_PTR)Slash > (ULONG_PTR)Guid)
|
|
{
|
|
/* Create an extra slash */
|
|
memmove(Slash+1, Slash, (wcslen(Slash) + 1) * sizeof(WCHAR));
|
|
Slash[1] = L'#';
|
|
}
|
|
|
|
Guid = Path;
|
|
while((ULONG_PTR)Guid < (ULONG_PTR)Slash)
|
|
{
|
|
if (*Guid == L'\\')
|
|
*Guid = L'#';
|
|
|
|
Guid++;
|
|
}
|
|
|
|
hKey = SetupDiOpenClassRegKeyExW(&DeviceInterfaceData->InterfaceClassGuid, samDesired, DIOCR_INTERFACE, NULL, NULL);
|
|
if (hKey != INVALID_HANDLE_VALUE)
|
|
{
|
|
if (RegOpenKeyExW(hKey, Path, 0, samDesired, &hDevKey) == ERROR_SUCCESS)
|
|
{
|
|
RegCloseKey(hKey);
|
|
hKey = hDevKey;
|
|
}
|
|
else
|
|
{
|
|
RegCloseKey(hKey);
|
|
hKey = INVALID_HANDLE_VALUE;
|
|
}
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(), 0, Path);
|
|
}
|
|
|
|
return hKey;
|
|
}
|