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ntoskrnl.exe: Implement IoGetDeviceProperty for DevicePropertyPhysicalDeviceObjectName. 

Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Aric Stewart 2016-01-29 09:44:36 -06:00 committed by Alexandre Julliard
parent b8387e6909
commit 5dc8dc829a
1 changed files with 37 additions and 2 deletions
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39
dlls/ntoskrnl.exe/ntoskrnl.c
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@ -1040,9 +1040,44 @@ PDEVICE_OBJECT WINAPI IoGetAttachedDevice( PDEVICE_OBJECT device )
NTSTATUS WINAPI IoGetDeviceProperty( DEVICE_OBJECT *device, DEVICE_REGISTRY_PROPERTY device_property,
ULONG buffer_length, PVOID property_buffer, PULONG result_length )
{
FIXME( "%p %d %u %p %p: stub\n", device, device_property, buffer_length,
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
TRACE( "%p %d %u %p %p\n", device, device_property, buffer_length,
property_buffer, result_length );
return STATUS_NOT_IMPLEMENTED;
switch (device_property)
{
case DevicePropertyPhysicalDeviceObjectName:
{
ULONG used_len, len = buffer_length + sizeof(OBJECT_NAME_INFORMATION);
OBJECT_NAME_INFORMATION *name = HeapAlloc(GetProcessHeap(), 0, len);
status = NtQueryObject(device->Reserved, ObjectNameInformation, name, len, &used_len);
if (status == STATUS_SUCCESS)
{
/* Ensure room for NULL termination */
if (buffer_length >= name->Name.MaximumLength)
memcpy(property_buffer, name->Name.Buffer, name->Name.MaximumLength);
else
status = STATUS_BUFFER_TOO_SMALL;
*result_length = name->Name.MaximumLength;
}
else
{
if (status == STATUS_INFO_LENGTH_MISMATCH ||
status == STATUS_BUFFER_OVERFLOW)
{
status = STATUS_BUFFER_TOO_SMALL;
*result_length = used_len - sizeof(OBJECT_NAME_INFORMATION);
}
else
*result_length = 0;
}
HeapFree(GetProcessHeap(), 0, name);
break;
}
default:
FIXME("unhandled property %d\n", device_property);
}
return status;
}