diff options
Diffstat (limited to 'src/VBox/HostDrivers/VBoxUSB/darwin/USBLib-darwin.cpp')
| -rw-r--r-- | src/VBox/HostDrivers/VBoxUSB/darwin/USBLib-darwin.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/VBoxUSB/darwin/USBLib-darwin.cpp b/src/VBox/HostDrivers/VBoxUSB/darwin/USBLib-darwin.cpp new file mode 100644 index 00000000..30415310 --- /dev/null +++ b/src/VBox/HostDrivers/VBoxUSB/darwin/USBLib-darwin.cpp @@ -0,0 +1,201 @@ +/** $Id: USBLib-darwin.cpp $ */ +/** @file + * USBLib - Library for wrapping up the VBoxUSB functionality, Darwin flavor. + */ + +/* + * Copyright (C) 2007-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <VBox/usblib.h> +#include <iprt/errcore.h> +#include <VBox/log.h> +#include "VBoxUSBInterface.h" + +#include <iprt/assert.h> +#include <iprt/asm.h> + +#include <mach/mach_port.h> +#include <IOKit/IOKitLib.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** The IOClass key of the service (see VBoxUSB.cpp / Info.plist). */ +#define IOCLASS_NAME "org_virtualbox_VBoxUSB" + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Reference counter. */ +static uint32_t volatile g_cUsers = 0; +/** The IOMasterPort. */ +static mach_port_t g_MasterPort = 0; +/** The current service connection. */ +static io_connect_t g_Connection = 0; + + + +USBLIB_DECL(int) USBLibInit(void) +{ + /* + * Already open? + * This isn't properly serialized, but we'll be fine with the current usage. + */ + if (g_cUsers) + { + ASMAtomicIncU32(&g_cUsers); + return VINF_SUCCESS; + } + + /* + * Finding the VBoxUSB service. + */ + mach_port_t MasterPort; + kern_return_t kr = IOMasterPort(MACH_PORT_NULL, &MasterPort); + if (kr != kIOReturnSuccess) + { + LogRel(("USBLib: IOMasterPort -> %#x\n", kr)); + return RTErrConvertFromDarwinKern(kr); + } + + CFDictionaryRef ClassToMatch = IOServiceMatching(IOCLASS_NAME); + if (!ClassToMatch) + { + LogRel(("USBLib: IOServiceMatching(\"%s\") failed.\n", IOCLASS_NAME)); + return VERR_GENERAL_FAILURE; + } + + /* Create an io_iterator_t for all instances of our drivers class that exist in the IORegistry. */ + io_iterator_t Iterator; + kr = IOServiceGetMatchingServices(g_MasterPort, ClassToMatch, &Iterator); + if (kr != kIOReturnSuccess) + { + LogRel(("USBLib: IOServiceGetMatchingServices returned %#x\n", kr)); + return RTErrConvertFromDarwinKern(kr); + } + + /* Get the first item in the iterator and release it. */ + io_service_t ServiceObject = IOIteratorNext(Iterator); + IOObjectRelease(Iterator); + if (!ServiceObject) + { + LogRel(("USBLib: Couldn't find any matches.\n")); + return VERR_GENERAL_FAILURE; + } + + /* + * Open the service. + * This will cause the user client class in VBoxUSB.cpp to be instantiated. + */ + kr = IOServiceOpen(ServiceObject, mach_task_self(), VBOXUSB_DARWIN_IOSERVICE_COOKIE, &g_Connection); + IOObjectRelease(ServiceObject); + if (kr != kIOReturnSuccess) + { + LogRel(("USBLib: IOServiceOpen returned %#x\n", kr)); + return RTErrConvertFromDarwinKern(kr); + } + + ASMAtomicIncU32(&g_cUsers); + return VINF_SUCCESS; +} + + +USBLIB_DECL(int) USBLibTerm(void) +{ + if (!g_cUsers) + return VERR_WRONG_ORDER; + if (ASMAtomicDecU32(&g_cUsers) != 0) + return VINF_SUCCESS; + + /* + * We're the last guy, close down the connection. + */ + kern_return_t kr = IOServiceClose(g_Connection); + if (kr != kIOReturnSuccess) + { + LogRel(("USBLib: Warning: IOServiceClose(%p) returned %#x\n", g_Connection, kr)); + AssertMsgFailed(("%#x\n", kr)); + } + g_Connection = 0; + + return VINF_SUCCESS; +} + + +USBLIB_DECL(void *) USBLibAddFilter(PCUSBFILTER pFilter) +{ + VBOXUSBADDFILTEROUT Out = { 0, VERR_WRONG_ORDER }; +#if MAC_OS_X_VERSION_MIN_REQUIRED < 1050 + IOByteCount cbOut = sizeof(Out); + kern_return_t kr = IOConnectMethodStructureIStructureO(g_Connection, + VBOXUSBMETHOD_ADD_FILTER, + sizeof(*pFilter), + &cbOut, + (void *)pFilter, + &Out); +#else /* 10.5 and later */ + size_t cbOut = sizeof(Out); + kern_return_t kr = IOConnectCallStructMethod(g_Connection, + VBOXUSBMETHOD_ADD_FILTER, + (void *)pFilter, sizeof(*pFilter), + &Out, &cbOut); +#endif /* 10.5 and later */ + if ( kr == kIOReturnSuccess + && RT_SUCCESS(Out.rc)) + { + Assert(cbOut == sizeof(Out)); + Assert((void *)Out.uId != NULL); + return (void *)Out.uId; + } + + AssertMsgFailed(("kr=%#x Out.rc=%Rrc\n", kr, Out.rc)); + return NULL; +} + + +USBLIB_DECL(void) USBLibRemoveFilter(void *pvId) +{ + int rc = VERR_WRONG_ORDER; +#if MAC_OS_X_VERSION_MIN_REQUIRED < 1050 + IOByteCount cbOut = sizeof(rc); + kern_return_t kr = IOConnectMethodStructureIStructureO(g_Connection, + VBOXUSBMETHOD_REMOVE_FILTER, + sizeof(pvId), + &cbOut, + &pvId, + &rc); +#else /* 10.5 and later */ + size_t cbOut = sizeof(rc); + kern_return_t kr = IOConnectCallStructMethod(g_Connection, + VBOXUSBMETHOD_REMOVE_FILTER, + (void *)&pvId, sizeof(pvId), + &rc, &cbOut); +#endif /* 10.5 and later */ + AssertMsg(kr == kIOReturnSuccess && RT_SUCCESS(rc), ("kr=%#x rc=%Rrc\n", kr, rc)); + NOREF(kr); +} + |