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[SETUPAPI] Use CM_* functions to get list of devices
- this prevents duplicating the code with umpnpmgr::PNP_GetDeviceList - we can enumerate devices on other computers This is part of the bugfix for CORE-17529
This commit is contained in:
Hervé Poussineau
parent
ade5413362
commit
0f3133c308
3 changed files with 97 additions and 210 deletions
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@ -117,139 +117,6 @@ SetupDiDestroyClassImageList(
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return ret;
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}
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/***********************************************************************
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* SETUP_CreateDevicesListFromEnumerator
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*
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* PARAMS
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* list [IO] Device info set to fill with discovered devices.
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* pClassGuid [I] If specified, only devices which belong to this class will be added.
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* Enumerator [I] Location to search devices to add.
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* hEnumeratorKey [I] Registry key corresponding to Enumerator key. Must have KEY_ENUMERATE_SUB_KEYS right.
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: an error code.
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*/
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static LONG
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SETUP_CreateDevicesListFromEnumerator(
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IN OUT struct DeviceInfoSet *list,
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IN CONST GUID *pClassGuid OPTIONAL,
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IN LPCWSTR Enumerator,
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IN HKEY hEnumeratorKey) /* handle to Enumerator registry key */
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{
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HKEY hDeviceIdKey = NULL, hInstanceIdKey;
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WCHAR KeyBuffer[MAX_PATH];
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WCHAR InstancePath[MAX_PATH];
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LPWSTR pEndOfInstancePath; /* Pointer into InstancePath buffer */
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struct DeviceInfo *deviceInfo;
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DWORD i = 0, j;
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DWORD dwLength, dwRegType;
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DWORD rc;
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/* Enumerate device IDs (subkeys of hEnumeratorKey) */
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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(hEnumeratorKey, 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 device id sub key */
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if (hDeviceIdKey != NULL)
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RegCloseKey(hDeviceIdKey);
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rc = RegOpenKeyExW(hEnumeratorKey, KeyBuffer, 0, KEY_ENUMERATE_SUB_KEYS, &hDeviceIdKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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if (FAILED(StringCchCopyW(InstancePath, _countof(InstancePath), Enumerator)) ||
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FAILED(StringCchCatW(InstancePath, _countof(InstancePath), BackSlash)) ||
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FAILED(StringCchCatW(InstancePath, _countof(InstancePath), KeyBuffer)) ||
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FAILED(StringCchCatW(InstancePath, _countof(InstancePath), BackSlash)))
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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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pEndOfInstancePath = &InstancePath[strlenW(InstancePath)];
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/* Enumerate instance IDs (subkeys of hDeviceIdKey) */
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j = 0;
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while (TRUE)
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{
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GUID KeyGuid;
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dwLength = sizeof(KeyBuffer) / sizeof(KeyBuffer[0]);
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rc = RegEnumKeyExW(hDeviceIdKey, 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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/* Open instance id sub key */
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rc = RegOpenKeyExW(hDeviceIdKey, KeyBuffer, 0, KEY_QUERY_VALUE, &hInstanceIdKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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*pEndOfInstancePath = '\0';
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strcatW(InstancePath, KeyBuffer);
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/* Read ClassGUID value */
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dwLength = sizeof(KeyBuffer) - sizeof(WCHAR);
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rc = RegQueryValueExW(hInstanceIdKey, ClassGUID, NULL, &dwRegType, (LPBYTE)KeyBuffer, &dwLength);
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RegCloseKey(hInstanceIdKey);
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if (rc == ERROR_FILE_NOT_FOUND)
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{
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if (pClassGuid)
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/* Skip this bad entry as we can't verify it */
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continue;
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/* Set a default GUID for this device */
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memcpy(&KeyGuid, &GUID_NULL, sizeof(GUID));
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}
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else if (rc != ERROR_SUCCESS)
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{
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goto cleanup;
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}
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else if (dwRegType != REG_SZ || dwLength < MAX_GUID_STRING_LEN * sizeof(WCHAR))
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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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else
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{
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KeyBuffer[MAX_GUID_STRING_LEN - 2] = '\0'; /* Replace the } by a NULL character */
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if (UuidFromStringW(&KeyBuffer[1], &KeyGuid) != RPC_S_OK)
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/* Bad GUID, skip the entry */
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continue;
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}
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if (pClassGuid && !IsEqualIID(&KeyGuid, pClassGuid))
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{
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/* Skip this entry as it is not the right device class */
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continue;
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}
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/* Add the entry to the list */
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if (!CreateDeviceInfo(list, InstancePath, &KeyGuid, &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 '%s' to device info set %p\n", debugstr_w(InstancePath), list);
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InsertTailList(&list->ListHead, &deviceInfo->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 (hDeviceIdKey != NULL)
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RegCloseKey(hDeviceIdKey);
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return rc;
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}
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LONG
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SETUP_CreateDevicesList(
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IN OUT struct DeviceInfoSet *list,
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@ -257,91 +124,108 @@ SETUP_CreateDevicesList(
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IN CONST GUID *Class OPTIONAL,
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IN PCWSTR Enumerator OPTIONAL)
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{
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HKEY HKLM = HKEY_LOCAL_MACHINE;
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HKEY hEnumKey = NULL;
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HKEY hEnumeratorKey = NULL;
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WCHAR KeyBuffer[MAX_PATH];
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DWORD i;
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DWORD dwLength;
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DWORD rc;
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PWCHAR Buffer = NULL;
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DWORD BufferLength = 4096;
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PCWSTR InstancePath;
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struct DeviceInfo *deviceInfo;
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WCHAR ClassGuidBuffer[MAX_GUID_STRING_LEN];
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DWORD ClassGuidBufferSize;
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GUID ClassGuid;
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DEVINST dnDevInst;
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CONFIGRET cr;
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if (Class && IsEqualIID(Class, &GUID_NULL))
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Class = NULL;
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Buffer = HeapAlloc(GetProcessHeap(), 0, BufferLength);
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if (!Buffer)
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return ERROR_NOT_ENOUGH_MEMORY;
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/* Open Enum key (if applicable) */
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if (MachineName != NULL)
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do
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{
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rc = RegConnectRegistryW(MachineName, HKEY_LOCAL_MACHINE, &HKLM);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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}
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rc = RegOpenKeyExW(
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HKLM,
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REGSTR_PATH_SYSTEMENUM,
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0,
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KEY_ENUMERATE_SUB_KEYS,
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&hEnumKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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/* If enumerator is provided, call directly SETUP_CreateDevicesListFromEnumerator.
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* Else, enumerate all enumerators and call SETUP_CreateDevicesListFromEnumerator
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* for each one.
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*/
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if (Enumerator)
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{
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rc = RegOpenKeyExW(
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hEnumKey,
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Enumerator,
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0,
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KEY_ENUMERATE_SUB_KEYS,
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&hEnumeratorKey);
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if (rc != ERROR_SUCCESS)
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cr = CM_Get_Device_ID_List_ExW(Enumerator,
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Buffer,
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BufferLength,
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Enumerator ? CM_GETIDLIST_FILTER_ENUMERATOR : CM_GETIDLIST_FILTER_NONE,
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list->hMachine);
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if (cr == CR_BUFFER_SMALL)
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{
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if (rc == ERROR_FILE_NOT_FOUND)
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rc = ERROR_INVALID_DATA;
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goto cleanup;
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if (Buffer)
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HeapFree(GetProcessHeap(), 0, Buffer);
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BufferLength *= 2;
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Buffer = HeapAlloc(GetProcessHeap(), 0, BufferLength);
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if (!Buffer)
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return ERROR_NOT_ENOUGH_MEMORY;
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}
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rc = SETUP_CreateDevicesListFromEnumerator(list, Class, Enumerator, hEnumeratorKey);
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}
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else
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{
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/* Enumerate enumerators */
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i = 0;
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while (TRUE)
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else if (cr != CR_SUCCESS)
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{
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dwLength = sizeof(KeyBuffer) / sizeof(KeyBuffer[0]);
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rc = RegEnumKeyExW(hEnumKey, 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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else 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 (hEnumeratorKey != NULL)
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RegCloseKey(hEnumeratorKey);
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rc = RegOpenKeyExW(hEnumKey, KeyBuffer, 0, KEY_ENUMERATE_SUB_KEYS, &hEnumeratorKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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/* Call SETUP_CreateDevicesListFromEnumerator */
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rc = SETUP_CreateDevicesListFromEnumerator(list, Class, KeyBuffer, hEnumeratorKey);
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if (rc != ERROR_SUCCESS)
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goto cleanup;
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TRACE("CM_Get_Device_ID_List_ExW() failed with status 0x%x\n", cr);
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if (Buffer)
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HeapFree(GetProcessHeap(), 0, Buffer);
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return GetErrorCodeFromCrCode(cr);
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}
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rc = ERROR_SUCCESS;
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}
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while (cr != CR_SUCCESS);
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for (InstancePath = Buffer; *InstancePath != UNICODE_NULL; InstancePath += wcslen(InstancePath) + 1)
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{
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/* Check that device really exists */
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TRACE("Checking %S\n", InstancePath);
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cr = CM_Locate_DevNode_Ex(&dnDevInst,
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(DEVINSTID_W)InstancePath,
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CM_LOCATE_DEVNODE_NORMAL,
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list->hMachine);
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if (cr != CR_SUCCESS)
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{
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ERR("CM_Locate_DevNode_ExW('%S') failed with status 0x%x\n", InstancePath, cr);
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continue;
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}
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/* Retrieve GUID of this device */
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if (Class)
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{
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ClassGuidBufferSize = sizeof(ClassGuidBuffer);
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cr = CM_Get_DevNode_Registry_Property_ExW(dnDevInst,
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CM_DRP_CLASSGUID,
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NULL,
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ClassGuidBuffer,
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&ClassGuidBufferSize,
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0,
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list->hMachine);
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if (cr == CR_SUCCESS)
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{
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ClassGuidBuffer[MAX_GUID_STRING_LEN - 2] = '\0'; /* Replace the } by a NULL character */
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if (UuidFromStringW(&ClassGuidBuffer[1], &ClassGuid) != RPC_S_OK)
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{
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/* Bad GUID, skip the entry */
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ERR("Invalid ClassGUID '%S' for device %S\n", ClassGuidBuffer, InstancePath);
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continue;
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}
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}
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else
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{
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TRACE("Using default class GUID_NULL for device %S\n", InstancePath);
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memcpy(&ClassGuid, &GUID_NULL, sizeof(GUID));
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}
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if (!IsEqualIID(&ClassGuid, Class))
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{
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TRACE("Skipping %S due to wrong class GUID\n", InstancePath);
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continue;
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}
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}
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/* Good! Create a device info element */
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if (!CreateDeviceInfo(list, InstancePath, &ClassGuid, &deviceInfo))
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{
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ERR("Failed to create info for %S\n", InstancePath);
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HeapFree(GetProcessHeap(), 0, Buffer);
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return GetLastError();
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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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}
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cleanup:
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if (HKLM != HKEY_LOCAL_MACHINE)
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RegCloseKey(HKLM);
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if (hEnumKey != NULL)
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RegCloseKey(hEnumKey);
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if (hEnumeratorKey != NULL)
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RegCloseKey(hEnumeratorKey);
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return rc;
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HeapFree(GetProcessHeap(), 0, Buffer);
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return ERROR_SUCCESS;
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}
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static BOOL
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@ -88,7 +88,7 @@ static void SETUPDI_GuidToString(const GUID *guid, LPWSTR guidStr)
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guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
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}
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static DWORD
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DWORD
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GetErrorCodeFromCrCode(const IN CONFIGRET cr)
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{
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switch (cr)
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@ -298,6 +298,9 @@ UINT CALLBACK QUEUE_callback_WtoA( void *context, UINT notification, UINT_PTR, U
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/* devinst.c */
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DWORD
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GetErrorCodeFromCrCode(const IN CONFIGRET cr);
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BOOL
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CreateDeviceInfo(
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IN struct DeviceInfoSet *list,
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