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/* $Id: USBProxyBackendOs2.cpp $ */
/** @file
* VirtualBox USB Proxy Service, OS/2 Specialization.
*/
/*
* Copyright (C) 2005-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_MAIN_USBPROXYBACKEND
#define INCL_BASE
#define INCL_ERRORS
#include "USBProxyBackend.h"
#include "LoggingNew.h"
#include <VBox/usb.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
#include <iprt/alloc.h>
#include <iprt/assert.h>
#include <iprt/file.h>
#include <iprt/errcore.h>
/**
* Initialize data members.
*/
USBProxyBackendOs2::USBProxyBackendOs2(USBProxyService *aUsbProxyService, const com::Utf8Str &strId)
: USBProxyBackend(aUsbProxyService, strId), mhev(NULLHANDLE), mhmod(NULLHANDLE),
mpfnUsbRegisterChangeNotification(NULL), mpfnUsbDeregisterNotification(NULL),
mpfnUsbQueryNumberDevices(NULL), mpfnUsbQueryDeviceReport(NULL)
{
LogFlowThisFunc(("aUsbProxyService=%p\n", aUsbProxyService));
/*
* Try initialize the usbcalls stuff.
*/
APIRET orc = DosCreateEventSem(NULL, &mhev, 0, FALSE);
int vrc = RTErrConvertFromOS2(orc);
if (RT_SUCCESS(vrc))
{
orc = DosLoadModule(NULL, 0, (PCSZ)"usbcalls", &mhmod);
vrc = RTErrConvertFromOS2(orc);
if (RT_SUCCESS(vrc))
{
if ( (orc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbQueryNumberDevices", (PPFN)&mpfnUsbQueryNumberDevices)) == NO_ERROR
&& (orc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbQueryDeviceReport", (PPFN)&mpfnUsbQueryDeviceReport)) == NO_ERROR
&& (orc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbRegisterChangeNotification", (PPFN)&mpfnUsbRegisterChangeNotification)) == NO_ERROR
&& (orc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbDeregisterNotification", (PPFN)&mpfnUsbDeregisterNotification)) == NO_ERROR
)
{
orc = mpfnUsbRegisterChangeNotification(&mNotifyId, mhev, mhev);
if (!orc)
{
/*
* Start the poller thread.
*/
vrc = start();
if (RT_SUCCESS(vrc))
{
LogFlowThisFunc(("returns successfully - mNotifyId=%d\n", mNotifyId));
mLastError = VINF_SUCCESS;
return;
}
LogRel(("USBProxyBackendOs2: failed to start poller thread, vrc=%Rrc\n", vrc));
}
else
{
LogRel(("USBProxyBackendOs2: failed to register change notification, orc=%d\n", orc));
vrc = RTErrConvertFromOS2(orc);
}
}
else
{
LogRel(("USBProxyBackendOs2: failed to load usbcalls\n"));
vrc = RTErrConvertFromOS2(orc);
}
DosFreeModule(mhmod);
}
else
LogRel(("USBProxyBackendOs2: failed to load usbcalls, vrc=%d\n", vrc));
mhmod = NULLHANDLE;
}
else
mhev = NULLHANDLE;
mLastError = vrc;
LogFlowThisFunc(("returns failure!!! (vrc=%Rrc)\n", vrc));
}
/**
* Stop all service threads and free the device chain.
*/
USBProxyBackendOs2::~USBProxyBackendOs2()
{
LogFlowThisFunc(("\n"));
/*
* Stop the service.
*/
if (isActive())
stop();
/*
* Free resources.
*/
if (mhmod)
{
if (mpfnUsbDeregisterNotification)
mpfnUsbDeregisterNotification(mNotifyId);
mpfnUsbRegisterChangeNotification = NULL;
mpfnUsbDeregisterNotification = NULL;
mpfnUsbQueryNumberDevices = NULL;
mpfnUsbQueryDeviceReport = NULL;
DosFreeModule(mhmod);
mhmod = NULLHANDLE;
}
}
int USBProxyBackendOs2::captureDevice(HostUSBDevice *aDevice)
{
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
/*
* Don't think we need to do anything when the device is held... fake it.
*/
Assert(aDevice->isStatePending());
devLock.release();
interruptWait();
return VINF_SUCCESS;
}
int USBProxyBackendOs2::releaseDevice(HostUSBDevice *aDevice)
{
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
/*
* We're not really holding it atm., just fake it.
*/
Assert(aDevice->isStatePending());
devLock.release();
interruptWait();
return VINF_SUCCESS;
}
#if 0
bool USBProxyBackendOs2::updateDeviceState(HostUSBDevice *aDevice, PUSBDEVICE aUSBDevice, bool *aRunFilters,
SessionMachine **aIgnoreMachine)
{
AssertReturn(aDevice, false);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), false);
return updateDeviceStateFake(aDevice, aUSBDevice, aRunFilters, aIgnoreMachine);
}
#endif
int USBProxyBackendOs2::wait(RTMSINTERVAL aMillies)
{
int orc = DosWaitEventSem(mhev, aMillies);
return RTErrConvertFromOS2(orc);
}
int USBProxyBackendOs2::interruptWait(void)
{
int orc = DosPostEventSem(mhev);
return orc == NO_ERROR || orc == ERROR_ALREADY_POSTED
? VINF_SUCCESS
: RTErrConvertFromOS2(orc);
}
#include <stdio.h>
PUSBDEVICE USBProxyBackendOs2::getDevices(void)
{
/*
* Count the devices.
*/
ULONG cDevices = 0;
int orc = mpfnUsbQueryNumberDevices((PULONG)&cDevices); /* Thanks to com/xpcom, PULONG and ULONG * aren't the same. */
if (orc)
return NULL;
/*
* Retrieve information about each device.
*/
PUSBDEVICE pFirst = NULL;
PUSBDEVICE *ppNext = &pFirst;
for (ULONG i = 0; i < cDevices; i++)
{
/*
* Query the device and config descriptors.
*/
uint8_t abBuf[1024];
ULONG cb = sizeof(abBuf);
orc = mpfnUsbQueryDeviceReport(i + 1, (PULONG)&cb, &abBuf[0]); /* see above (PULONG) */
if (orc)
continue;
PUSBDEVICEDESC pDevDesc = (PUSBDEVICEDESC)&abBuf[0];
if ( cb < sizeof(*pDevDesc)
|| pDevDesc->bDescriptorType != USB_DT_DEVICE
|| pDevDesc->bLength < sizeof(*pDevDesc)
|| pDevDesc->bLength > sizeof(*pDevDesc) * 2)
continue;
PUSBCONFIGDESC pCfgDesc = (PUSBCONFIGDESC)&abBuf[pDevDesc->bLength];
if ( pCfgDesc->bDescriptorType != USB_DT_CONFIG
|| pCfgDesc->bLength >= sizeof(*pCfgDesc))
pCfgDesc = NULL;
/*
* Skip it if it's some kind of hub.
*/
if (pDevDesc->bDeviceClass == USB_HUB_CLASSCODE)
continue;
/*
* Allocate a new device node and initialize it with the basic stuff.
*/
PUSBDEVICE pCur = (PUSBDEVICE)RTMemAlloc(sizeof(*pCur));
pCur->bcdUSB = pDevDesc->bcdUSB;
pCur->bDeviceClass = pDevDesc->bDeviceClass;
pCur->bDeviceSubClass = pDevDesc->bDeviceSubClass;
pCur->bDeviceProtocol = pDevDesc->bDeviceProtocol;
pCur->idVendor = pDevDesc->idVendor;
pCur->idProduct = pDevDesc->idProduct;
pCur->bcdDevice = pDevDesc->bcdDevice;
pCur->pszManufacturer = RTStrDup("");
pCur->pszProduct = RTStrDup("");
pCur->pszSerialNumber = NULL;
pCur->u64SerialHash = 0;
//pCur->bNumConfigurations = pDevDesc->bNumConfigurations;
pCur->bNumConfigurations = 0;
pCur->paConfigurations = NULL;
pCur->enmState = USBDEVICESTATE_USED_BY_HOST_CAPTURABLE;
pCur->enmSpeed = USBDEVICESPEED_UNKNOWN;
pCur->pszAddress = NULL;
RTStrAPrintf((char **)&pCur->pszAddress, "p=0x%04RX16;v=0x%04RX16;r=0x%04RX16;e=0x%08RX32",
pDevDesc->idProduct, pDevDesc->idVendor, pDevDesc->bcdDevice, i);
pCur->bBus = 0;
pCur->bLevel = 0;
pCur->bDevNum = 0;
pCur->bDevNumParent = 0;
pCur->bPort = 0;
pCur->bNumDevices = 0;
pCur->bMaxChildren = 0;
/* link it */
pCur->pNext = NULL;
pCur->pPrev = *ppNext;
*ppNext = pCur;
ppNext = &pCur->pNext;
}
return pFirst;
}
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