/* $Id: DrvHostBase-darwin.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */ /** @file * DrvHostBase - Host base drive access driver, OS X specifics. */ /* * Copyright (C) 2006-2017 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. */ #define LOG_GROUP LOG_GROUP_DRV_HOST_BASE #include #include #include #include #include #include #include #include #include #include /** Maximum buffer size we support, check whether darwin has some real upper limit. */ #define DARWIN_SCSI_MAX_BUFFER_SIZE (100 * _1K) /** * Host backend specific data. */ typedef struct DRVHOSTBASEOS { /** The master port. */ mach_port_t MasterPort; /** The MMC-2 Device Interface. (This is only used to get the scsi task interface.) */ MMCDeviceInterface **ppMMCDI; /** The SCSI Task Device Interface. */ SCSITaskDeviceInterface **ppScsiTaskDI; /** The block size. Set when querying the media size. */ uint32_t cbBlock; /** The disk arbitration session reference. NULL if we didn't have to claim & unmount the device. */ DASessionRef pDASession; /** The disk arbitration disk reference. NULL if we didn't have to claim & unmount the device. */ DADiskRef pDADisk; /** The number of errors that could go into the release log. (flood gate) */ uint32_t cLogRelErrors; } DRVHOSTBASEOS; /** Pointer to the host backend specific data. */ typedef DRVHOSTBASEOS *PDRVHOSBASEOS; AssertCompile(sizeof(DRVHOSTBASEOS) <= 64); #define DRVHOSTBASE_OS_INT_DECLARED #include "DrvHostBase.h" /** The runloop input source name for the disk arbitration events. */ # define MY_RUN_LOOP_MODE CFSTR("drvHostBaseDA") /** @todo r=bird: Check if this will cause trouble in the same way that the one in the USB code did. */ /** * Gets the BSD Name (/dev/disc[0-9]+) for the service. * * This is done by recursing down the I/O registry until we hit upon an entry * with a BSD Name. Usually we find it two levels down. (Further down under * the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't * seem to have to go this far fortunately.) * * @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise. * @param Entry The current I/O registry entry reference. * @param pszName Where to store the name. 128 bytes. * @param cRecursions Number of recursions. This is used as an precaution * just to limit the depth and avoid blowing the stack * should we hit a bug or something. */ static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions) { int rc = VERR_FILE_NOT_FOUND; io_iterator_t Children = 0; kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children); if (krc == KERN_SUCCESS) { io_object_t Child; while ( rc == VERR_FILE_NOT_FOUND && (Child = IOIteratorNext(Children)) != 0) { CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0); if (BSDNameStrRef) { if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8)) rc = VINF_SUCCESS; else AssertFailed(); CFRelease(BSDNameStrRef); } if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10) rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1); IOObjectRelease(Child); } IOObjectRelease(Children); } return rc; } /** * Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed. * * @param DiskRef The disk that was attempted claimed / unmounted. * @param DissenterRef NULL on success, contains details on failure. * @param pvContext Pointer to the return code variable. */ static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext) { RT_NOREF(DiskRef); int *prc = (int *)pvContext; if (!DissenterRef) *prc = 0; else *prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1; CFRunLoopStop(CFRunLoopGetCurrent()); } /** * Obtain exclusive access to the DVD device, umount it if necessary. * * @return VBox status code. * @param pThis The driver instance. * @param DVDService The DVD service object. */ static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService) { PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns); for (unsigned iTry = 0;; iTry++) { IOReturn irc = (*pThis->Os.ppScsiTaskDI)->ObtainExclusiveAccess(pThis->Os.ppScsiTaskDI); if (irc == kIOReturnSuccess) { /* * This is a bit weird, but if we unmounted the DVD drive we also need to * unlock it afterwards or the guest won't be able to eject it later on. */ if (pThis->Os.pDADisk) { uint8_t abCmd[16] = { SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0, 0,0,0,0,0,0,0,0,0,0 }; drvHostBaseScsiCmdOs(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, NULL, 0, 0); } return VINF_SUCCESS; } if (irc == kIOReturnExclusiveAccess) return VERR_SHARING_VIOLATION; /* already used exclusivly. */ if (irc != kIOReturnBusy) return VERR_GENERAL_FAILURE; /* not mounted */ /* * Attempt to the unmount all volumes of the device. * It seems we can can do this all in one go without having to enumerate the * volumes (sessions) and deal with them one by one. This is very fortuitous * as the disk arbitration API is a bit cumbersome to deal with. */ if (iTry > 2) return VERR_DRIVE_LOCKED; char szName[128]; int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0); if (RT_SUCCESS(rc)) { pThis->Os.pDASession = DASessionCreate(kCFAllocatorDefault); if (pThis->Os.pDASession) { DASessionScheduleWithRunLoop(pThis->Os.pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE); pThis->Os.pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->Os.pDASession, szName); if (pThis->Os.pDADisk) { /* * Try claim the device. */ Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName)); int rcDA = -2; DADiskClaim(pThis->Os.pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA); SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE); AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32)); if ( rc32 == kCFRunLoopRunStopped && !rcDA) { /* * Try unmount the device. */ Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName)); rcDA = -2; DADiskUnmount(pThis->Os.pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA); rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE); AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32)); if ( rc32 == kCFRunLoopRunStopped && !rcDA) { iTry = 99; DASessionUnscheduleFromRunLoop(pThis->Os.pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE); Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pReg->szName, pDrvIns->iInstance)); continue; } Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA)); /* failed - cleanup */ DADiskUnclaim(pThis->Os.pDADisk); } else Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA)); CFRelease(pThis->Os.pDADisk); pThis->Os.pDADisk = NULL; } else Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName)); DASessionUnscheduleFromRunLoop(pThis->Os.pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE); CFRelease(pThis->Os.pDASession); pThis->Os.pDASession = NULL; } else Log(("%s-%d: failed to create DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance)); } RTThreadSleep(10); } } DECLHIDDEN(int) drvHostBaseScsiCmdOs(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMMEDIATXDIR enmTxDir, void *pvBuf, uint32_t *pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies) { /* * Minimal input validation. */ Assert(enmTxDir == PDMMEDIATXDIR_NONE || enmTxDir == PDMMEDIATXDIR_FROM_DEVICE || enmTxDir == PDMMEDIATXDIR_TO_DEVICE); Assert(!pvBuf || pcbBuf); Assert(pvBuf || enmTxDir == PDMMEDIATXDIR_NONE); Assert(pbSense || !cbSense); AssertPtr(pbCmd); Assert(cbCmd <= 16 && cbCmd >= 1); const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0; if (pcbBuf) *pcbBuf = 0; Assert(pThis->Os.ppScsiTaskDI); int rc = VERR_GENERAL_FAILURE; SCSITaskInterface **ppScsiTaskI = (*pThis->Os.ppScsiTaskDI)->CreateSCSITask(pThis->Os.ppScsiTaskDI); if (!ppScsiTaskI) return VERR_NO_MEMORY; do { /* Setup the scsi command. */ SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }; memcpy(&cdb[0], pbCmd, cbCmd); IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd); AssertBreak(irc == kIOReturnSuccess); /* Setup the buffer. */ if (enmTxDir == PDMMEDIATXDIR_NONE) irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer); else { IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf }; irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf, enmTxDir == PDMMEDIATXDIR_FROM_DEVICE ? kSCSIDataTransfer_FromTargetToInitiator : kSCSIDataTransfer_FromInitiatorToTarget); } AssertBreak(irc == kIOReturnSuccess); /* Set the timeout. */ irc = (*ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /*ms*/); AssertBreak(irc == kIOReturnSuccess); /* Execute the command and get the response. */ SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }; SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process; SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD; UInt64 cbReturned = 0; irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned); AssertBreak(irc == kIOReturnSuccess); if (pcbBuf) *pcbBuf = (int32_t)cbReturned; irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse); AssertBreak(irc == kIOReturnSuccess); AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE); if (TaskStatus == kSCSITaskStatus_GOOD) rc = VINF_SUCCESS; else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION && pbSense) { memset(pbSense, 0, cbSense); /* lazy */ memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense)); rc = VERR_UNRESOLVED_ERROR; } /** @todo convert sense codes when caller doesn't wish to do this himself. */ /*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION && SenseData.ADDITIONAL_SENSE_CODE == 0x3A) rc = VERR_MEDIA_NOT_PRESENT; */ else { rc = enmTxDir == PDMMEDIATXDIR_NONE ? VERR_DEV_IO_ERROR : enmTxDir == PDMMEDIATXDIR_FROM_DEVICE ? VERR_READ_ERROR : VERR_WRITE_ERROR; if (pThis->Os.cLogRelErrors++ < 10) LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n", cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE, SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc)); } } while (0); (*ppScsiTaskI)->Release(ppScsiTaskI); return rc; } DECLHIDDEN(size_t) drvHostBaseScsiCmdGetBufLimitOs(PDRVHOSTBASE pThis) { RT_NOREF(pThis); return DARWIN_SCSI_MAX_BUFFER_SIZE; } DECLHIDDEN(int) drvHostBaseGetMediaSizeOs(PDRVHOSTBASE pThis, uint64_t *pcb) { /* * Try a READ_CAPACITY command... */ struct { uint32_t cBlocks; uint32_t cbBlock; } Buf = {0, 0}; uint32_t cbBuf = sizeof(Buf); uint8_t abCmd[16] = { SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0 }; int rc = drvHostBaseScsiCmdOs(pThis, abCmd, 6, PDMMEDIATXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0); if (RT_SUCCESS(rc)) { Assert(cbBuf == sizeof(Buf)); Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks); Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock); //if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/ // Buf.cbBlock = 2048; pThis->Os.cbBlock = Buf.cbBlock; *pcb = (uint64_t)Buf.cBlocks * Buf.cbBlock; } return rc; } DECLHIDDEN(int) drvHostBaseReadOs(PDRVHOSTBASE pThis, uint64_t off, void *pvBuf, size_t cbRead) { int rc = VINF_SUCCESS; if ( pThis->Os.ppScsiTaskDI && pThis->Os.cbBlock) { /* * Issue a READ(12) request. */ do { const uint32_t LBA = off / pThis->Os.cbBlock; AssertReturn(!(off % pThis->Os.cbBlock), VERR_INVALID_PARAMETER); uint32_t cbRead32 = cbRead > SCSI_MAX_BUFFER_SIZE ? SCSI_MAX_BUFFER_SIZE : (uint32_t)cbRead; const uint32_t cBlocks = cbRead32 / pThis->Os.cbBlock; AssertReturn(!(cbRead % pThis->Os.cbBlock), VERR_INVALID_PARAMETER); uint8_t abCmd[16] = { SCSI_READ_12, 0, RT_BYTE4(LBA), RT_BYTE3(LBA), RT_BYTE2(LBA), RT_BYTE1(LBA), RT_BYTE4(cBlocks), RT_BYTE3(cBlocks), RT_BYTE2(cBlocks), RT_BYTE1(cBlocks), 0, 0, 0, 0, 0 }; rc = drvHostBaseScsiCmdOs(pThis, abCmd, 12, PDMMEDIATXDIR_FROM_DEVICE, pvBuf, &cbRead32, NULL, 0, 0); off += cbRead32; cbRead -= cbRead32; pvBuf = (uint8_t *)pvBuf + cbRead32; } while ((cbRead > 0) && RT_SUCCESS(rc)); } else rc = VERR_MEDIA_NOT_PRESENT; return rc; } DECLHIDDEN(int) drvHostBaseWriteOs(PDRVHOSTBASE pThis, uint64_t off, const void *pvBuf, size_t cbWrite) { RT_NOREF4(pThis, off, pvBuf, cbWrite); return VERR_WRITE_PROTECT; } DECLHIDDEN(int) drvHostBaseFlushOs(PDRVHOSTBASE pThis) { RT_NOREF1(pThis); return VINF_SUCCESS; } DECLHIDDEN(int) drvHostBaseDoLockOs(PDRVHOSTBASE pThis, bool fLock) { uint8_t abCmd[16] = { SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, fLock, 0, 0,0,0,0,0,0,0,0,0,0 }; return drvHostBaseScsiCmdOs(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, NULL, 0, 0); } DECLHIDDEN(int) drvHostBaseEjectOs(PDRVHOSTBASE pThis) { uint8_t abCmd[16] = { SCSI_START_STOP_UNIT, 0, 0, 0, 2 /*eject+stop*/, 0, 0,0,0,0,0,0,0,0,0,0 }; return drvHostBaseScsiCmdOs(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, NULL, 0, 0); } DECLHIDDEN(int) drvHostBaseQueryMediaStatusOs(PDRVHOSTBASE pThis, bool *pfMediaChanged, bool *pfMediaPresent) { AssertReturn(pThis->Os.ppScsiTaskDI, VERR_INTERNAL_ERROR); /* * Issue a TEST UNIT READY request. */ *pfMediaChanged = false; *pfMediaPresent = false; uint8_t abCmd[16] = { SCSI_TEST_UNIT_READY, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }; uint8_t abSense[32]; int rc = drvHostBaseScsiCmdOs(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, abSense, sizeof(abSense), 0); if (RT_SUCCESS(rc)) *pfMediaPresent = true; else if ( rc == VERR_UNRESOLVED_ERROR && abSense[2] == 6 /* unit attention */ && ( (abSense[12] == 0x29 && abSense[13] < 5 /* reset */) || (abSense[12] == 0x2a && abSense[13] == 0 /* parameters changed */) //??? || (abSense[12] == 0x3f && abSense[13] == 0 /* target operating conditions have changed */) //??? || (abSense[12] == 0x3f && abSense[13] == 2 /* changed operating definition */) //??? || (abSense[12] == 0x3f && abSense[13] == 3 /* inquiry parameters changed */) || (abSense[12] == 0x3f && abSense[13] == 5 /* device identifier changed */) ) ) { *pfMediaPresent = false; *pfMediaChanged = true; rc = VINF_SUCCESS; /** @todo check this media change stuff on Darwin. */ } return rc; } DECLHIDDEN(void) drvHostBaseInitOs(PDRVHOSTBASE pThis) { pThis->Os.MasterPort = IO_OBJECT_NULL; pThis->Os.ppMMCDI = NULL; pThis->Os.ppScsiTaskDI = NULL; pThis->Os.cbBlock = 0; pThis->Os.pDADisk = NULL; pThis->Os.pDASession = NULL; } DECLHIDDEN(int) drvHostBaseOpenOs(PDRVHOSTBASE pThis, bool fReadOnly) { RT_NOREF(fReadOnly); /* Darwin is kind of special... */ Assert(!pThis->Os.cbBlock); Assert(pThis->Os.MasterPort == IO_OBJECT_NULL); Assert(!pThis->Os.ppMMCDI); Assert(!pThis->Os.ppScsiTaskDI); /* * Open the master port on the first invocation. */ kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->Os.MasterPort); AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE); /* * Create a matching dictionary for searching for CD, DVD and BlueRay services in the IOKit. * * The idea is to find all the devices which are of class IOCDBlockStorageDevice. * CD devices are represented by IOCDBlockStorageDevice class itself, while DVD and BlueRay ones * have it as a parent class. */ CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IOCDBlockStorageDevice"); AssertReturn(RefMatchingDict, VERR_NOT_FOUND); /* * do the search and get a collection of keyboards. */ io_iterator_t DVDServices = IO_OBJECT_NULL; IOReturn irc = IOServiceGetMatchingServices(pThis->Os.MasterPort, RefMatchingDict, &DVDServices); AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), VERR_NOT_FOUND); RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */ /* * Enumerate the matching drives (services). * (This enumeration must be identical to the one performed in Main/src-server/darwin/iokit.cpp.) */ int rc = VERR_FILE_NOT_FOUND; unsigned i = 0; io_object_t DVDService; while ((DVDService = IOIteratorNext(DVDServices)) != 0) { /* * Get the properties we use to identify the DVD drive. * * While there is a (weird 12 byte) GUID, it isn't persistent * across boots. So, we have to use a combination of the * vendor name and product name properties with an optional * sequence number for identification. */ CFMutableDictionaryRef PropsRef = 0; krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions); if (krc == KERN_SUCCESS) { /* Get the Device Characteristics dictionary. */ CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey)); if (DevCharRef) { /* The vendor name. */ char szVendor[128]; char *pszVendor = &szVendor[0]; CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey)); if ( ValueRef && CFGetTypeID(ValueRef) == CFStringGetTypeID() && CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8)) pszVendor = RTStrStrip(szVendor); else *pszVendor = '\0'; /* The product name. */ char szProduct[128]; char *pszProduct = &szProduct[0]; ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey)); if ( ValueRef && CFGetTypeID(ValueRef) == CFStringGetTypeID() && CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8)) pszProduct = RTStrStrip(szProduct); else *pszProduct = '\0'; /* Construct the two names and compare thwm with the one we're searching for. */ char szName1[256 + 32]; char szName2[256 + 32]; if (*pszVendor || *pszProduct) { if (*pszVendor && *pszProduct) { RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct); RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i); } else { strcpy(szName1, *pszVendor ? pszVendor : pszProduct); RTStrPrintf(szName2, sizeof(szName2), "%s (#%u)", *pszVendor ? pszVendor : pszProduct, i); } } else { RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i); strcpy(szName2, szName1); } if ( !strcmp(szName1, pThis->pszDevice) || !strcmp(szName2, pThis->pszDevice)) { /* * Found it! Now, get the client interface and stuff. * Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the * MMC client plugin is missing. For now we assume this won't be necessary. */ SInt32 Score = 0; IOCFPlugInInterface **ppPlugInInterface = NULL; krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID, &ppPlugInInterface, &Score); if (krc == KERN_SUCCESS) { HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface, CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID), (LPVOID *)&pThis->Os.ppMMCDI); (*ppPlugInInterface)->Release(ppPlugInInterface); ppPlugInInterface = NULL; if (hrc == S_OK) { pThis->Os.ppScsiTaskDI = (*pThis->Os.ppMMCDI)->GetSCSITaskDeviceInterface(pThis->Os.ppMMCDI); if (pThis->Os.ppScsiTaskDI) rc = VINF_SUCCESS; else { LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDevice)); rc = VERR_NOT_SUPPORTED; (*pThis->Os.ppMMCDI)->Release(pThis->Os.ppMMCDI); } } else { rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc); pThis->Os.ppMMCDI = NULL; } } else /* Check for kIOSCSITaskDeviceUserClientTypeID? */ rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc); /* Obtain exclusive access to the device so we can send SCSI commands. */ if (RT_SUCCESS(rc)) rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService); /* Cleanup on failure. */ if (RT_FAILURE(rc)) { if (pThis->Os.ppScsiTaskDI) { (*pThis->Os.ppScsiTaskDI)->Release(pThis->Os.ppScsiTaskDI); pThis->Os.ppScsiTaskDI = NULL; } if (pThis->Os.ppMMCDI) { (*pThis->Os.ppMMCDI)->Release(pThis->Os.ppMMCDI); pThis->Os.ppMMCDI = NULL; } } IOObjectRelease(DVDService); break; } } CFRelease(PropsRef); } else AssertMsgFailed(("krc=%#x\n", krc)); IOObjectRelease(DVDService); i++; } IOObjectRelease(DVDServices); return rc; } DECLHIDDEN(int) drvHostBaseMediaRefreshOs(PDRVHOSTBASE pThis) { RT_NOREF(pThis); return VINF_SUCCESS; } DECLHIDDEN(bool) drvHostBaseIsMediaPollingRequiredOs(PDRVHOSTBASE pThis) { if (pThis->enmType == PDMMEDIATYPE_CDROM || pThis->enmType == PDMMEDIATYPE_DVD) return true; AssertMsgFailed(("Darwin supports only CD/DVD host drive access\n")); return false; } DECLHIDDEN(void) drvHostBaseDestructOs(PDRVHOSTBASE pThis) { /* * Unlock the drive if we've locked it or we're in passthru mode. */ if ( ( pThis->fLocked || pThis->IMedia.pfnSendCmd) && pThis->Os.ppScsiTaskDI && pThis->pfnDoLock) { int rc = pThis->pfnDoLock(pThis, false); if (RT_SUCCESS(rc)) pThis->fLocked = false; } /* * The unclaiming doesn't seem to mean much, the DVD is actually * remounted when we release exclusive access. I'm not quite sure * if I should put the unclaim first or not... * * Anyway, that it's automatically remounted very good news for us, * because that means we don't have to mess with that ourselves. Of * course there is the unlikely scenario that we've succeeded in claiming * and umount the DVD but somehow failed to gain exclusive scsi access... */ if (pThis->Os.ppScsiTaskDI) { LogFlow(("%s-%d: releasing exclusive scsi access!\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance)); (*pThis->Os.ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->Os.ppScsiTaskDI); (*pThis->Os.ppScsiTaskDI)->Release(pThis->Os.ppScsiTaskDI); pThis->Os.ppScsiTaskDI = NULL; } if (pThis->Os.pDADisk) { LogFlow(("%s-%d: unclaiming the disk!\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance)); DADiskUnclaim(pThis->Os.pDADisk); CFRelease(pThis->Os.pDADisk); pThis->Os.pDADisk = NULL; } if (pThis->Os.ppMMCDI) { LogFlow(("%s-%d: releasing the MMC object!\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance)); (*pThis->Os.ppMMCDI)->Release(pThis->Os.ppMMCDI); pThis->Os.ppMMCDI = NULL; } if (pThis->Os.MasterPort != IO_OBJECT_NULL) { mach_port_deallocate(mach_task_self(), pThis->Os.MasterPort); pThis->Os.MasterPort = IO_OBJECT_NULL; } if (pThis->Os.pDASession) { LogFlow(("%s-%d: releasing the DA session!\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance)); CFRelease(pThis->Os.pDASession); pThis->Os.pDASession = NULL; } }