darwin/testcase/tstOpenUSBDev.cpp

59190ecd61435d19ba3515b876272aee7bd12298vboxsync/* $Id$ */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync/** @file
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * Testcase that attempts to locate and open the specfied device.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync/*
c58f1213e628a545081c70e26c6b67a841cff880vboxsync * Copyright (C) 2006-2011 Oracle Corporation
59190ecd61435d19ba3515b876272aee7bd12298vboxsync *
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * available from http://www.virtualbox.org. This file is free software;
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * you can redistribute it and/or modify it under the terms of the GNU
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * General Public License (GPL) as published by the Free Software
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
c55c68b6a3324172e9dc207926215845880b0f90vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync/*******************************************************************************
59190ecd61435d19ba3515b876272aee7bd12298vboxsync*   Header Files                                                               *
59190ecd61435d19ba3515b876272aee7bd12298vboxsync*******************************************************************************/
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <mach/mach.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <Carbon/Carbon.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <IOKit/IOKitLib.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <IOKit/storage/IOStorageDeviceCharacteristics.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <IOKit/scsi/SCSITaskLib.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <mach/mach_error.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <IOKit/usb/IOUSBLib.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <IOKit/IOCFPlugIn.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/mem.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/string.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/process.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/assert.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/thread.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/getopt.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/initterm.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#include <iprt/stream.h>
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync/**
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * Gets an unsigned 32-bit integer value.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync *
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @returns Success indicator (true/false).
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   DictRef     The dictionary.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   KeyStrRef   The key name.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   pu32        Where to store the key value.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync */
59190ecd61435d19ba3515b876272aee7bd12298vboxsyncstatic bool tstDictGetU32(CFMutableDictionaryRef DictRef, CFStringRef KeyStrRef, uint32_t *pu32)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync{
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    CFTypeRef ValRef = CFDictionaryGetValue(DictRef, KeyStrRef);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (ValRef)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        if (CFNumberGetValue((CFNumberRef)ValRef, kCFNumberSInt32Type, pu32))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            return true;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    *pu32 = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    return false;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync}
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync/**
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * Gets an unsigned 64-bit integer value.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync *
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @returns Success indicator (true/false).
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   DictRef     The dictionary.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   KeyStrRef   The key name.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync * @param   pu64        Where to store the key value.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync */
59190ecd61435d19ba3515b876272aee7bd12298vboxsyncstatic bool tstDictGetU64(CFMutableDictionaryRef DictRef, CFStringRef KeyStrRef, uint64_t *pu64)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync{
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    CFTypeRef ValRef = CFDictionaryGetValue(DictRef, KeyStrRef);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (ValRef)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        if (CFNumberGetValue((CFNumberRef)ValRef, kCFNumberSInt64Type, pu64))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            return true;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    *pu64 = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    return false;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync}
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsyncstatic int tstDoWork(io_object_t USBDevice, mach_port_t MasterPort, const char *argv0)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync{
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Create a plugin interface for the device and query its IOUSBDeviceInterface.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    int vrc = VINF_SUCCESS;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    SInt32 Score = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    IOCFPlugInInterface **ppPlugInInterface = NULL;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    IOReturn irc = IOCreatePlugInInterfaceForService(USBDevice, kIOUSBDeviceUserClientTypeID,
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                                                     kIOCFPlugInInterfaceID, &ppPlugInInterface, &Score);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (irc == kIOReturnSuccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        IOUSBDeviceInterface245 **ppDevI = NULL;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                                                           CFUUIDGetUUIDBytes(kIOUSBDeviceInterfaceID245),
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                                                           (LPVOID *)&ppDevI);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        irc = IODestroyPlugInInterface(ppPlugInInterface); Assert(irc == kIOReturnSuccess);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        ppPlugInInterface = NULL;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        if (hrc == S_OK)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             * Try open the device for exclusive access.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            irc = (*ppDevI)->USBDeviceOpenSeize(ppDevI);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            if (irc == kIOReturnExclusiveAccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                RTThreadSleep(20);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                irc = (*ppDevI)->USBDeviceOpenSeize(ppDevI);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            if (irc == kIOReturnSuccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#if 0
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                 * Re-enumerate the device and bail out.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                 */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                irc = (*ppDevI)->USBDeviceReEnumerate(ppDevI, 0);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                if (irc != kIOReturnSuccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                    vrc = RTErrConvertFromDarwinIO(irc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                    RTPrintf("%s: Failed to re-enumerate the device, irc=%#x (vrc=%Rrc).\n", argv0, irc, vrc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync#endif
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                (*ppDevI)->USBDeviceClose(ppDevI);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            else if (irc == kIOReturnExclusiveAccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                vrc = VERR_SHARING_VIOLATION;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                RTPrintf("%s: The device is being used by another process (irc=kIOReturnExclusiveAccess)\n", argv0);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            else
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                vrc = VERR_OPEN_FAILED;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                RTPrintf("%s: Failed to open the device, irc=%#x (vrc=%Rrc).\n", argv0, irc, vrc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        else
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            vrc = VERR_OPEN_FAILED;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            RTPrintf("%s: Failed to create plugin interface for the device, hrc=%#x (vrc=%Rrc).\n", argv0, hrc, vrc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        (*ppDevI)->Release(ppDevI);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    else
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        vrc = RTErrConvertFromDarwinIO(irc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        RTPrintf("%s: Failed to open the device, plug-in creation failed with irc=%#x (vrc=%Rrc).\n", argv0, irc, vrc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    return vrc;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync}
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsyncstatic int tstSyntax(const char *argv0)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync{
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    RTPrintf("syntax: %s [criteria]\n"
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             "\n"
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             "Criteria:\n"
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             "  -l <location>\n"
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             "  -s <session>\n"
59190ecd61435d19ba3515b876272aee7bd12298vboxsync             , argv0);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    return 1;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync}
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsyncint main(int argc, char **argv)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync{
230bd8589bba39933ac5ec21482d6186d675e604vboxsync    RTR3InitExe(argc, &argv, 0);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Show help if not arguments.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (argc <= 1)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        return tstSyntax(argv[0]);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Parse arguments.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    static const RTGETOPTDEF g_aOptions[] =
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        { "--location", 'l', RTGETOPT_REQ_UINT32 },
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        { "--session",  's', RTGETOPT_REQ_UINT64 },
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    };
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    kern_return_t krc;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    uint64_t u64SessionId = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    uint32_t u32LocationId = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    int ch;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    int i = 1;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    RTGETOPTUNION ValueUnion;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    RTGETOPTSTATE GetState;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    RTGetOptInit(&GetState, argc, argv, g_aOptions, RT_ELEMENTS(g_aOptions), 1, 0 /* fFlags */);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    while ((ch = RTGetOpt(&GetState, &ValueUnion)))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        switch (ch)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            case 'l':
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                u32LocationId = ValueUnion.u32;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                break;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            case 's':
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                u64SessionId = ValueUnion.u64;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                break;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            case 'h':
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                return tstSyntax(argv[0]);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            case 'V':
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                RTPrintf("$Revision$\n");
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                return 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            default:
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                return RTGetOptPrintError(ch, &ValueUnion);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Open the master port.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    mach_port_t MasterPort = NULL;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    krc = IOMasterPort(MACH_PORT_NULL, &MasterPort);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (krc != KERN_SUCCESS)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        RTPrintf("%s: IOMasterPort -> %x\n", argv[0], krc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        return 1;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Iterate the USB devices and find all that matches.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    CFMutableDictionaryRef RefMatchingDict = IOServiceMatching(kIOUSBDeviceClassName);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (!RefMatchingDict)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        RTPrintf("%s: IOServiceMatching failed\n", argv[0]);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        return 1;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    io_iterator_t USBDevices = NULL;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    IOReturn irc = IOServiceGetMatchingServices(MasterPort, RefMatchingDict, &USBDevices);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (irc != kIOReturnSuccess)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        RTPrintf("%s: IOServiceGetMatchingServices -> %#x\n", argv[0], irc);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        return 1;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    unsigned cDevices = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    unsigned cMatches = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    io_object_t USBDevice;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    while ((USBDevice = IOIteratorNext(USBDevices)))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        cDevices++;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        CFMutableDictionaryRef PropsRef = 0;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        krc = IORegistryEntryCreateCFProperties(USBDevice, &PropsRef, kCFAllocatorDefault, kNilOptions);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        if (krc == KERN_SUCCESS)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            uint64_t u64CurSessionId;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            uint32_t u32CurLocationId;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            if (    (    !u64SessionId
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                     || (   tstDictGetU64(PropsRef, CFSTR("sessionID"), &u64CurSessionId)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                         && u64CurSessionId == u64SessionId))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                &&  (   !u32LocationId
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                     || (   tstDictGetU32(PropsRef, CFSTR(kUSBDevicePropertyLocationID), &u32CurLocationId)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                         && u32CurLocationId == u32LocationId))
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                )
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            {
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                cMatches++;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                CFRelease(PropsRef);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                tstDoWork(USBDevice, MasterPort, argv[0]);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync            else
59190ecd61435d19ba3515b876272aee7bd12298vboxsync                CFRelease(PropsRef);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        IOObjectRelease(USBDevice);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    }
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    IOObjectRelease(USBDevices);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    /*
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     * Bitch if we didn't find anything matching the criteria.
59190ecd61435d19ba3515b876272aee7bd12298vboxsync     */
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    if (!cMatches)
59190ecd61435d19ba3515b876272aee7bd12298vboxsync        RTPrintf("%s: No matching devices found from a total of %d.\n", argv[0], cDevices);
59190ecd61435d19ba3515b876272aee7bd12298vboxsync    return !cMatches;
59190ecd61435d19ba3515b876272aee7bd12298vboxsync}
59190ecd61435d19ba3515b876272aee7bd12298vboxsync