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/**
* Oshi (https://github.com/dblock/oshi)
*
* Copyright (c) 2010 - 2016 The Oshi Project Team
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Maintainers:
* dblock[at]dblock[dot]org
* widdis[at]gmail[dot]com
* enrico.bianchi[at]gmail[dot]com
*
* Contributors:
* https://github.com/dblock/oshi/graphs/contributors
*/
package oshi.hardware.platform.windows;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.jna.Native;
import com.sun.jna.platform.win32.SetupApi;
import com.sun.jna.platform.win32.SetupApi.SP_DEVINFO_DATA;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.platform.win32.WinNT.HANDLE;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.NativeLongByReference;
import oshi.hardware.UsbDevice;
import oshi.hardware.common.AbstractUsbDevice;
import oshi.jna.platform.windows.Cfgmgr32;
import oshi.util.ParseUtil;
import oshi.util.platform.windows.WmiUtil;
public class WindowsUsbDevice extends AbstractUsbDevice {
private static final long serialVersionUID = 2L;
private static final Logger LOG = LoggerFactory.getLogger(WindowsUsbDevice.class);
private static final Pattern VENDOR_PRODUCT_ID = Pattern
.compile(".*(?:VID|VEN)_(\\p{XDigit}{4})&(?:PID|DEV)_(\\p{XDigit}{4}).*");
public WindowsUsbDevice(String name, String vendor, String vendorId, String productId, String serialNumber,
UsbDevice[] connectedDevices) {
super(name, vendor, vendorId, productId, serialNumber, connectedDevices);
}
/*
* Maps to store information using PNPDeviceID as the key
*/
private static Map nameMap = new HashMap<>();
private static Map vendorMap = new HashMap<>();
private static Map serialMap = new HashMap<>();
private static Map> hubMap = new HashMap<>();
/**
* {@inheritDoc}
*/
public static UsbDevice[] getUsbDevices() {
// Start by collecting information for all PNP devices. While in theory
// these could be individually queried with a WHERE clause, grabbing
// them all up front incurs minimal memory overhead in exchange for
// faster access later
// Clear maps
nameMap.clear();
vendorMap.clear();
serialMap.clear();
// Query Win32_PnPEntity to populate the maps
Map> usbMap = WmiUtil.selectStringsFrom(null, "Win32_PnPEntity",
"Name,Manufacturer,PnPDeviceID", null);
for (int i = 0; i < usbMap.get("Name").size(); i++) {
String pnpDeviceID = usbMap.get("PnPDeviceID").get(i);
nameMap.put(pnpDeviceID, usbMap.get("Name").get(i));
if (usbMap.get("Manufacturer").get(i).length() > 0) {
vendorMap.put(pnpDeviceID, usbMap.get("Manufacturer").get(i));
}
}
// Get serial # for disk drives or other physical media
usbMap = WmiUtil.selectStringsFrom(null, "Win32_DiskDrive", "PNPDeviceID,SerialNumber", null);
for (int i = 0; i < usbMap.get("PNPDeviceID").size(); i++) {
serialMap.put(usbMap.get("PNPDeviceID").get(i),
ParseUtil.hexStringToString(usbMap.get("PNPDeviceID").get(i)));
}
usbMap = WmiUtil.selectStringsFrom(null, "Win32_PhysicalMedia", "PNPDeviceID,SerialNumber", null);
for (int i = 0; i < usbMap.get("PNPDeviceID").size(); i++) {
serialMap.put(usbMap.get("PNPDeviceID").get(i),
ParseUtil.hexStringToString(usbMap.get("PNPDeviceID").get(i)));
}
// Build the device tree. Start with the USB Controllers
// and recurse downward to devices as needed
usbMap = WmiUtil.selectStringsFrom(null, "Win32_USBController", "PNPDeviceID", null);
List controllerDevices = new ArrayList();
for (String controllerDeviceId : usbMap.get("PNPDeviceID")) {
putChildrenInDeviceTree(controllerDeviceId, 0);
controllerDevices.add(getDeviceAndChildren(controllerDeviceId, "0000", "0000"));
}
return controllerDevices.toArray(new UsbDevice[controllerDevices.size()]);
}
/**
* Navigates the Device Tree to place all children PNPDeviceIDs into the map
* for the specified deviceID. Recursively adds children's children, etc.
*
* @param deviceId
* The device to add respective children to the map
* @param devInst
* The device instance (devnode handle), if known. If set to 0,
* the code will search for a match.
*/
private static void putChildrenInDeviceTree(String deviceId, int devInst) {
// If no devInst provided, find it by matching deviceId
if (devInst == 0) {
// Get a handle to the device with this deviceId
// Start with all classes
HANDLE hinfoSet = SetupApi.INSTANCE.SetupDiGetClassDevs(null, null, null, SetupApi.DIGCF_ALLCLASSES);
if (hinfoSet == WinNT.INVALID_HANDLE_VALUE) {
LOG.error("Invalid handle value for {}. Error code: {}", deviceId, Native.getLastError());
return;
}
// Iterate to find matching parent
SP_DEVINFO_DATA dinfo = new SP_DEVINFO_DATA();
dinfo.cbSize = dinfo.size();
int i = 0;
while (SetupApi.INSTANCE.SetupDiEnumDeviceInfo(hinfoSet, i++, dinfo)) {
if (deviceId.equals(getDeviceId(dinfo.DevInst))) {
devInst = dinfo.DevInst;
break;
}
}
}
if (devInst == 0) {
LOG.error("Unable to find a devnode handle for {}.", deviceId);
return;
}
// Now iterate the children. Call CM_Get_Child to get first child
IntByReference child = new IntByReference();
if (0 == Cfgmgr32.INSTANCE.CM_Get_Child(child, devInst, 0)) {
// Add first child to a list
List childList = new ArrayList<>();
String childId = getDeviceId(child.getValue());
childList.add(childId);
hubMap.put(deviceId, childList);
putChildrenInDeviceTree(childId, child.getValue());
// Find any other children
IntByReference sibling = new IntByReference();
while (0 == Cfgmgr32.INSTANCE.CM_Get_Sibling(sibling, child.getValue(), 0)) {
// Add to the list
String siblingId = getDeviceId(sibling.getValue());
hubMap.get(deviceId).add(siblingId);
putChildrenInDeviceTree(siblingId, sibling.getValue());
// Make this sibling the new child to find other siblings
child = sibling;
}
}
}
/**
* Gets the device id for a devnode
*
* @param devInst
* the handle to the devnode
* @return The PNPDeviceID
*/
private static String getDeviceId(int devInst) {
NativeLongByReference ulLen = new NativeLongByReference();
if (0 != Cfgmgr32.INSTANCE.CM_Get_Device_ID_Size(ulLen, devInst, 0)) {
LOG.error("Couldn't get device string for device instance {}", devInst);
return "";
}
// Add 1 for null terminator
int size = ulLen.getValue().intValue() + 1;
char[] buffer = new char[size];
if (0 != Cfgmgr32.INSTANCE.CM_Get_Device_ID(devInst, buffer, size, 0)) {
LOG.error("Couldn't get device string for device instance {} with size {}", devInst, size);
return "";
}
return new String(buffer).trim();
}
/**
* Recursively creates WindowsUsbDevices by fetching information from maps
* to populate fields
*
* @param hubDeviceId
* The PNPdeviceID of this device.
* @param vid
* The default (parent) vendor ID
* @param pid
* The default (parent) product ID
* @return A WindowsUsbDevice corresponding to this deviceID
*/
private static WindowsUsbDevice getDeviceAndChildren(String hubDeviceId, String vid, String pid) {
String vendorId = vid;
String productId = pid;
Matcher m = VENDOR_PRODUCT_ID.matcher(hubDeviceId);
if (m.matches()) {
vendorId = m.group(1).toLowerCase();
productId = m.group(2).toLowerCase();
}
List pnpDeviceIds = hubMap.containsKey(hubDeviceId) ? hubMap.get(hubDeviceId) : new ArrayList();
List usbDevices = new ArrayList<>();
for (String pnpDeviceId : pnpDeviceIds) {
usbDevices.add(getDeviceAndChildren(pnpDeviceId, vendorId, productId));
}
Collections.sort(usbDevices);
return new WindowsUsbDevice(
nameMap.containsKey(hubDeviceId) ? nameMap.get(hubDeviceId) : vendorId + ":" + productId,
vendorMap.containsKey(hubDeviceId) ? vendorMap.get(hubDeviceId) : "", vendorId, productId,
serialMap.containsKey(hubDeviceId) ? serialMap.get(hubDeviceId) : "",
usbDevices.toArray(new UsbDevice[usbDevices.size()]));
}
}
