DrvVD.cpp revision a9d49c8f2b28a72e6a4db86eee91e4569290157b
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync * DrvVD - Generic VBox disk media driver.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Copyright (C) 2006-2008 Sun Microsystems, Inc.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * available from http://www.virtualbox.org. This file is free software;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * additional information or have any questions.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Header files *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/* All lwip header files are not C++ safe. So hack around this. */
efff36b306e370346025647a158689021df2e1d1vboxsync#endif /* VBOX_WITH_INIP */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/* Small hack to get at lwIP initialized status */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncextern bool DevINIPConfigured(void);
efff36b306e370346025647a158689021df2e1d1vboxsync#endif /* VBOX_WITH_INIP */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Defined types, constants and macros *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync/** Converts a pointer to VBOXDISK::IMedia to a PVBOXDISK. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ( (PVBOXDISK)((uintptr_t)pInterface - RT_OFFSETOF(VBOXDISK, IMedia)) )
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** Converts a pointer to PDMDRVINS::IBase to a PPDMDRVINS. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ( (PPDMDRVINS)((uintptr_t)pInterface - RT_OFFSETOF(PDMDRVINS, IBase)) )
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** Converts a pointer to PDMDRVINS::IBase to a PVBOXDISK. */
0abd77741a608f6c41c8dfcd4781b8b84adf1044vboxsync ( PDMINS_2_DATA(PDMIBASE_2_DRVINS(pInterface), PVBOXDISK) )
9496f2d398b49813176939d7a339ae513d5175efvboxsync/** Converts a pointer to VBOXDISK::IMediaAsync to a PVBOXDISK. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync ( (PVBOXDISK)((uintptr_t)pInterface - RT_OFFSETOF(VBOXDISK, IMediaAsync)) )
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * VBox disk container, image information, private part.
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsynctypedef struct VBOXIMAGE
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to next image. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to list of VD interfaces. Per-image. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Common structure for the configuration information interface. */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync * Storage backend data.
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync /** PDM async completion end point. */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync /** The template. */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync /** Event semaphore for synchronous operations. */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync /** Flag whether a synchronous operation is currently pending. */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync volatile bool fSyncIoPending;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync /** Callback routine */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * VBox disk container media main structure, private part.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsynctypedef struct VBOXDISK
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** The VBox disk container. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** The media interface. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Pointer to the driver instance. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Flag whether suspend has changed image open mode to read only. */
21029597fc4b76d0db0c9542daee201447281781vboxsync /** Flag whether to use the runtime (true) or startup error facility. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to list of VD interfaces. Per-disk. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Common structure for the supported error interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Callback table for error interface. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /** Common structure for the supported TCP network stack interface. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /** Callback table for TCP network stack interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Common structure for the supported async I/O interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Callback table for async I/O interface. */
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync /** Callback table for the configuration information interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Flag whether opened disk suppports async I/O operations. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** The async media interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** The async media port interface above. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to the list of data we need to keep per image. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync* Internal Functions *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Internal: allocate new image descriptor and put it in the list
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE pImage = (PVBOXIMAGE)RTMemAllocZ(sizeof(VBOXIMAGE));
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Internal: free the list of images descriptors.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Undo the temporary read-only status of the image.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @returns VBox status code.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pThis The driver instance data.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync/*******************************************************************************
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync* Error reporting callback *
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync*******************************************************************************/
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic void drvvdErrorCallback(void *pvUser, int rc, RT_SRC_POS_DECL,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync /* We must not pass VMSETRTERR_FLAGS_FATAL as it could lead to a
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * deadlock: We are probably executed in a thread context != EMT
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * and the EM thread would wait until every thread is suspended
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * but we would wait for the EM thread ... */
a9d49c8f2b28a72e6a4db86eee91e4569290157bvboxsync PDMDrvHlpVMSetRuntimeErrorV(pDrvIns, /* fFlags=*/ 0, "DrvVD", pszFormat, va);
a9d49c8f2b28a72e6a4db86eee91e4569290157bvboxsync PDMDrvHlpVMSetErrorV(pDrvIns, rc, RT_SRC_POS_ARGS, pszFormat, va);
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* VD Async I/O interface implementation *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(void) drvvdAsyncTaskCompleted(PPDMDRVINS pDrvIns, void *pvTemplateUser, void *pvUser)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pvTemplateUser;
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync rc = pStorageBackend->pfnCompleted(pvUser, &pvCallerUser);
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync rc = pThis->pDrvMediaAsyncPort->pfnTransferCompleteNotify(pThis->pDrvMediaAsyncPort, pvCallerUser);
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync AssertMsg(rc == VERR_VD_ASYNC_IO_IN_PROGRESS, ("Invalid return code from disk backend rc=%Rrc\n", rc));
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOOpen(void *pvUser, const char *pszLocation, unsigned uOpenFlags,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)RTMemAllocZ(sizeof(DRVVDSTORAGEBACKEND));
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync rc = PDMDrvHlpPDMAsyncCompletionTemplateCreate(pDrvVD->pDrvIns, &pStorageBackend->pTemplate,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync drvvdAsyncTaskCompleted, pStorageBackend, "AsyncTaskCompleted");
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync rc = PDMR3AsyncCompletionEpCreateForFile(&pStorageBackend->pEndpoint, pszLocation,
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync uOpenFlags & VD_INTERFACEASYNCIO_OPEN_FLAGS_READONLY
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync ? PDMACEP_FILE_FLAGS_READ_ONLY | PDMACEP_FILE_FLAGS_CACHING
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDMR3AsyncCompletionTemplateDestroy(pStorageBackend->pTemplate);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOClose(void *pvUser, void *pStorage)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDMR3AsyncCompletionEpClose(pStorageBackend->pEndpoint);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDMR3AsyncCompletionTemplateDestroy(pStorageBackend->pTemplate);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOGetSize(void *pvUser, void *pStorage, uint64_t *pcbSize)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync return PDMR3AsyncCompletionEpGetSize(pStorageBackend->pEndpoint, pcbSize);
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOSetSize(void *pvUser, void *pStorage, uint64_t cbSize)
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOReadSync(void *pvUser, void *pStorage, uint64_t uOffset,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync int rc = PDMR3AsyncCompletionEpRead(pStorageBackend->pEndpoint, uOffset, &DataSeg, 1, cbRead, NULL, &pTask);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOWriteSync(void *pvUser, void *pStorage, uint64_t uOffset,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync size_t cbWrite, const void *pvBuf, size_t *pcbWritten)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync int rc = PDMR3AsyncCompletionEpWrite(pStorageBackend->pEndpoint, uOffset, &DataSeg, 1, cbWrite, NULL, &pTask);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOFlushSync(void *pvUser, void *pStorage)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync int rc = PDMR3AsyncCompletionEpFlush(pStorageBackend->pEndpoint, NULL, &pTask);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOReadAsync(void *pvUser, void *pStorage, uint64_t uOffset,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync return PDMR3AsyncCompletionEpRead(pStorageBackend->pEndpoint, uOffset, paSegments, cSegments, cbRead,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOWriteAsync(void *pvUser, void *pStorage, uint64_t uOffset,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync return PDMR3AsyncCompletionEpWrite(pStorageBackend->pEndpoint, uOffset, paSegments, cSegments, cbWrite,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOFlushAsync(void *pvUser, void *pStorage,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync return PDMR3AsyncCompletionEpFlush(pStorageBackend->pEndpoint, pvCompletion,
59d7f5939d42ad9d344fbad8401e00a900db92c5vboxsync#endif /* VBOX_WITH_PDM_ASYNC_COMPLETION */
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync/*******************************************************************************
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync* VD Configuration interface implementation *
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync*******************************************************************************/
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsyncstatic bool drvvdCfgAreKeysValid(void *pvUser, const char *pszzValid)
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsync return CFGMR3AreValuesValid((PCFGMNODE)pvUser, pszzValid);
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsyncstatic int drvvdCfgQuerySize(void *pvUser, const char *pszName, size_t *pcb)
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsync return CFGMR3QuerySize((PCFGMNODE)pvUser, pszName, pcb);
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsyncstatic int drvvdCfgQuery(void *pvUser, const char *pszName, char *pszString, size_t cchString)
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsync return CFGMR3QueryString((PCFGMNODE)pvUser, pszName, pszString, cchString);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/*******************************************************************************
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync* VD TCP network stack interface implementation - INIP case *
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync*******************************************************************************/
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnClientConnect */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstatic DECLCALLBACK(int) drvvdINIPClientConnect(const char *pszAddress, uint32_t uPort, PRTSOCKET pSock)
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* First check whether lwIP is set up in this VM instance. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* Resolve hostname. As there is no standard resolver for lwIP yet,
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * just accept numeric IP addresses for now. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync LogRelFunc(("cannot resolve IP %s\n", pszAddress));
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* Create socket and connect. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync RTSOCKET Sock = lwip_socket(PF_INET, SOCK_STREAM, 0);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync if (!lwip_connect(Sock, (struct sockaddr *)&InAddr, sizeof(InAddr)))
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync rc = VERR_NET_CONNECTION_REFUSED; /* @todo real solution needed */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync rc = VERR_NET_CONNECTION_REFUSED; /* @todo real solution needed */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnClientClose */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstatic DECLCALLBACK(int) drvvdINIPClientClose(RTSOCKET Sock)
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync return VINF_SUCCESS; /** @todo real solution needed */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnSelectOne */
7b067f3f07310bff46d1d6a4ac94d8b9bb7ccccdvboxsyncstatic DECLCALLBACK(int) drvvdINIPSelectOne(RTSOCKET Sock, RTMSINTERVAL cMillies)
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync rc = lwip_select(Sock + 1, &fdsetR, NULL, &fdsetE, NULL);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync rc = lwip_select(Sock + 1, &fdsetR, NULL, &fdsetE, &timeout);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync return VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnRead */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstatic DECLCALLBACK(int) drvvdINIPRead(RTSOCKET Sock, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* Do params checking */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * Read loop.
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * If pcbRead is NULL we have to fill the entire buffer!
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /** @todo this clipping here is just in case (the send function
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * needed it, so I added it here, too). Didn't investigate if this
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * really has issues. Better be safe than sorry. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync ssize_t cbBytesRead = lwip_recv(Sock, (char *)pvBuffer + cbRead,
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync return VERR_NET_CONNECTION_REFUSED; /** @todo real solution */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync return VERR_NET_CONNECTION_REFUSED; /** @todo real solution */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* return partial data */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* read more? */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnWrite */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstatic DECLCALLBACK(int) drvvdINIPWrite(RTSOCKET Sock, const void *pvBuffer, size_t cbBuffer)
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /** @todo lwip send only supports up to 65535 bytes in a single
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * send (stupid limitation buried in the code), so make sure we
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * don't get any wraparounds. This should be moved to DevINIP
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * stack interface once that's implemented. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync ssize_t cbWritten = lwip_send(Sock, (void *)pvBuffer,
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync return VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync AssertMsg(cbBuffer >= (size_t)cbWritten, ("Wrote more than we requested!!! cbWritten=%d cbBuffer=%d\n",
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync/** @copydoc VDINTERFACETCPNET::pfnFlush */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstatic DECLCALLBACK(int) drvvdINIPFlush(RTSOCKET Sock)
efff36b306e370346025647a158689021df2e1d1vboxsync#endif /* VBOX_WITH_INIP */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Media interface methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnRead */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdRead(PPDMIMEDIA pInterface,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: off=%#llx pvBuf=%p cbRead=%d\n", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
ff88d4153cd65650577e8c2d1a5a3fdfa0404a80vboxsync Log2(("%s: off=%#llx pvBuf=%p cbRead=%d %.*Rhxd\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnWrite */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdWrite(PPDMIMEDIA pInterface,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: off=%#llx pvBuf=%p cbWrite=%d\n", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
ff88d4153cd65650577e8c2d1a5a3fdfa0404a80vboxsync Log2(("%s: off=%#llx pvBuf=%p cbWrite=%d %.*Rhxd\n", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDWrite(pThis->pDisk, off, pvBuf, cbWrite);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnFlush */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdFlush(PPDMIMEDIA pInterface)
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnGetSize */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(uint64_t) drvvdGetSize(PPDMIMEDIA pInterface)
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync uint64_t cb = VDGetSize(pThis->pDisk, VD_LAST_IMAGE);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: returns %#llx (%llu)\n", __FUNCTION__, cb, cb));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnIsReadOnly */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(bool) drvvdIsReadOnly(PPDMIMEDIA pInterface)
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosGetPCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosGetPCHSGeometry(PPDMIMEDIA pInterface,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pPCHSGeometry);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log(("%s: geometry not available.\n", __FUNCTION__));
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc (CHS=%d/%d/%d)\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosSetPCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosSetPCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDSetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pPCHSGeometry);
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosGetLCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosGetLCHSGeometry(PPDMIMEDIA pInterface,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pLCHSGeometry);
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync Log(("%s: geometry not available.\n", __FUNCTION__));
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc (CHS=%d/%d/%d)\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosSetLCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosSetLCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDSetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pLCHSGeometry);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnGetUuid */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdGetUuid(PPDMIMEDIA pInterface, PRTUUID pUuid)
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
af90f37ee9175da3aed36bda13519a917cc4effbvboxsync LogFlow(("%s: returns %Rrc ({%RTuuid})\n", __FUNCTION__, rc, pUuid));
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* Async Media interface methods *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsyncstatic DECLCALLBACK(int) drvvdStartRead(PPDMIMEDIAASYNC pInterface, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s: uOffset=%#llx paSeg=%#p cSeg=%u cbRead=%d\n pvUser=%#p", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIAASYNC_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDAsyncRead(pThis->pDisk, uOffset, cbRead, paSeg, cSeg, pvUser);
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdStartWrite(PPDMIMEDIAASYNC pInterface, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s: uOffset=%#llx paSeg=%#p cSeg=%u cbWrite=%d\n pvUser=%#p", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIAASYNC_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDAsyncWrite(pThis->pDisk, uOffset, cbWrite, paSeg, cSeg, pvUser);
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* Async transport port interface methods *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncstatic DECLCALLBACK(int) drvvdTasksCompleteNotify(PPDMDRVINS pDrvIns, void *pvUser)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Base interface methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIBASE::pfnQueryInterface */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(void *) drvvdQueryInterface(PPDMIBASE pInterface,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PPDMDRVINS pDrvIns = PDMIBASE_2_DRVINS(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync return pThis->fAsyncIOSupported ? &pThis->IMediaAsync : NULL;
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync/*******************************************************************************
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync* Saved state notification methods *
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync*******************************************************************************/
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Load done callback for re-opening the image writable during teleportation.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * This is called both for successful and failed load runs, we only care about
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * successfull ones.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @returns VBox status code.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pDrvIns The driver instance.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pSSM The saved state handle.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(int) drvvdLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync /* Drop out if we don't have any work to do or if it's a failed load. */
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync if (RT_FAILURE(rc)) /** @todo does the bugger set any errors? */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Driver methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(void) drvvdPowerOff(PPDMDRVINS pDrvIns)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * We must close the disk here to ensure that
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * the backend closes all files before the
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * async transport driver is destructed.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * VM resume notification that we use to undo what the temporary read-only image
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * mode set by drvvdSuspend.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Also switch to runtime error mode if we're resuming after a state load
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * without having been powered on first.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pDrvIns The driver instance data.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @todo The VMSetError vs VMSetRuntimeError mess must be fixed elsewhere,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * we're making assumptions about Main behavior here!
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(void) drvvdResume(PPDMDRVINS pDrvIns)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * The VM is being suspended, temporarily change to read-only image mode.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * This is important for several reasons:
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * -# It makes sure that there are no pending writes to the image. Most
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * backends implements this by closing and reopening the image in read-only
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * -# It allows Main to read the images during snapshotting without having
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * to account for concurrent writes.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * -# This is essential for making teleportation targets sharing images work
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * right. Both with regards to caching and with regards to file sharing
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * locks (RTFILE_O_DENY_*). (See also drvvdLoadDone.)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pDrvIns The driver instance data.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(void) drvvdSuspend(PPDMDRVINS pDrvIns)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync int rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * VM PowerOn notification for undoing the TempReadOnly config option and
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * changing to runtime error mode.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @param pDrvIns The driver instance data.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @todo The VMSetError vs VMSetRuntimeError mess must be fixed elsewhere,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * we're making assumptions about Main behavior here!
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(void) drvvdPowerOn(PPDMDRVINS pDrvIns)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * @copydoc FNPDMDRVDESTRUCT
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncstatic DECLCALLBACK(void) drvvdDestruct(PPDMDRVINS pDrvIns)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Construct a VBox disk media driver instance.
cba6719bd64ec749967bbe931230452664109857vboxsync * @copydoc FNPDMDRVCONSTRUCT
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdConstruct(PPDMDRVINS pDrvIns,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync char *pszName = NULL; /**< The path of the disk image file. */
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync char *pszFormat = NULL; /**< The format backed to use for this image. */
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync bool fReadOnly; /**< True if the media is read-only. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync bool fHonorZeroWrites; /**< True if zero blocks should be written. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Init the static parts.
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pDrvIns->IBase.pfnQueryInterface = drvvdQueryInterface;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* IMedia */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosGetPCHSGeometry = drvvdBiosGetPCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosSetPCHSGeometry = drvvdBiosSetPCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosGetLCHSGeometry = drvvdBiosGetLCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosSetLCHSGeometry = drvvdBiosSetLCHSGeometry;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* IMediaAsync */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMediaAsync.pfnStartWrite = drvvdStartWrite;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Initialize supported VD interfaces. */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.cbSize = sizeof(VDINTERFACEERROR);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.enmInterface = VDINTERFACETYPE_ERROR;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.pfnError = drvvdErrorCallback;
68a4ee3a31a0807abd03eae881c1bbaf4d42ee6dvboxsync rc = VDInterfaceAdd(&pThis->VDIError, "DrvVD_VDIError", VDINTERFACETYPE_ERROR,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync &pThis->VDIErrorCallbacks, pDrvIns, &pThis->pVDIfsDisk);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* This is just prepared here, the actual interface is per-image, so it's
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * added later. No need to have separate callback tables. */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.cbSize = sizeof(VDINTERFACECONFIG);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.enmInterface = VDINTERFACETYPE_CONFIG;
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsync pThis->VDIConfigCallbacks.pfnAreKeysValid = drvvdCfgAreKeysValid;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQuerySize = drvvdCfgQuerySize;
975ad9d9bc9c4dc96b41d9f67a65228b1b338e2avboxsync pThis->VDIConfigCallbacks.pfnQuery = drvvdCfgQuery;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* List of images is empty now. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Try to attach async media port interface above.*/
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDrvMediaAsyncPort = (PPDMIMEDIAASYNCPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_MEDIA_ASYNC_PORT);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Validate configuration and find all parent images.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * It's sort of up side down from the image dependency tree.
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync bool fHostIP = false;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync bool fUseNewIo = false;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync unsigned iLevel = 0;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync /* Toplevel configuration additionally contains the global image
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync * open flags. Some might be converted to per-image flags later. */
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync "Format\0Path\0"
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync "ReadOnly\0TempReadOnly\0HonorZeroWrites\0"
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync "HostIPStack\0UseNewIo\0");
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync /* All other image configurations only contain image name and
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync * the format information. */
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync fValid = CFGMR3AreValuesValid(pCurNode, "Format\0Path\0");
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync RT_SRC_POS, N_("DrvVD: Configuration error: keys incorrect at level %d"), iLevel);
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync rc = CFGMR3QueryBoolDef(pCurNode, "HostIPStack", &fHostIP, true);
0ccdfa1953b2f57311fb9ec01a2baf5e1e366f5avboxsync N_("DrvVD: Configuration error: Querying \"HostIPStack\" as boolean failed"));
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync rc = CFGMR3QueryBoolDef(pCurNode, "HonorZeroWrites", &fHonorZeroWrites, false);
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync N_("DrvVD: Configuration error: Querying \"HonorZeroWrites\" as boolean failed"));
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync rc = CFGMR3QueryBoolDef(pCurNode, "ReadOnly", &fReadOnly, false);
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync N_("DrvVD: Configuration error: Querying \"ReadOnly\" as boolean failed"));
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync rc = CFGMR3QueryBoolDef(pCurNode, "TempReadOnly", &pThis->fTempReadOnly, false);
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync N_("DrvVD: Configuration error: Querying \"TempReadOnly\" as boolean failed"));
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync N_("DrvVD: Configuration error: Both \"ReadOnly\" and \"TempReadOnly\" are set"));
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync rc = CFGMR3QueryBoolDef(pCurNode, "UseNewIo", &fUseNewIo, false);
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync N_("DrvVD: Configuration error: Querying \"UseNewIo\" as boolean failed"));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PCFGMNODE pParent = CFGMR3GetChild(pCurNode, "Parent");
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Open the images.
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync /* First of all figure out what kind of TCP networking stack interface
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * to use. This is done unconditionally, as backends which don't need
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync * it will just ignore it. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.cbSize = sizeof(VDINTERFACETCPNET);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.enmInterface = VDINTERFACETYPE_TCPNET;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnClientConnect = RTTcpClientConnect;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnClientClose = RTTcpClientClose;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnSelectOne = RTTcpSelectOne;
a3369a746b56a8966dd78619f4d191c9662f400dvboxsync rc = PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
efff36b306e370346025647a158689021df2e1d1vboxsync RT_SRC_POS, N_("DrvVD: Configuration error: TCP over Internal Networking not compiled in"));
efff36b306e370346025647a158689021df2e1d1vboxsync#else /* VBOX_WITH_INIP */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.cbSize = sizeof(VDINTERFACETCPNET);
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.enmInterface = VDINTERFACETYPE_TCPNET;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnClientConnect = drvvdINIPClientConnect;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnClientClose = drvvdINIPClientClose;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnSelectOne = drvvdINIPSelectOne;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnWrite = drvvdINIPWrite;
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync pThis->VDITcpNetCallbacks.pfnFlush = drvvdINIPFlush;
efff36b306e370346025647a158689021df2e1d1vboxsync#endif /* VBOX_WITH_INIP */
a3369a746b56a8966dd78619f4d191c9662f400dvboxsync rc = VDInterfaceAdd(&pThis->VDITcpNet, "DrvVD_INIP",
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.cbSize = sizeof(VDINTERFACEASYNCIO);
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.enmInterface = VDINTERFACETYPE_ASYNCIO;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnOpen = drvvdAsyncIOOpen;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnClose = drvvdAsyncIOClose;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnGetSize = drvvdAsyncIOGetSize;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnSetSize = drvvdAsyncIOSetSize;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnReadSync = drvvdAsyncIOReadSync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnWriteSync = drvvdAsyncIOWriteSync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnFlushSync = drvvdAsyncIOFlushSync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnReadAsync = drvvdAsyncIOReadAsync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnWriteAsync = drvvdAsyncIOWriteAsync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync pThis->VDIAsyncIOCallbacks.pfnFlushAsync = drvvdAsyncIOFlushAsync;
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync rc = VDInterfaceAdd(&pThis->VDIAsyncIO, "DrvVD_AsyncIO", VDINTERFACETYPE_ASYNCIO,
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync &pThis->VDIAsyncIOCallbacks, pThis, &pThis->pVDIfsDisk);
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync#else /* !VBOX_WITH_PDM_ASYNC_COMPLETION */
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync rc = PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync RT_SRC_POS, N_("DrvVD: Configuration error: Async Completion Framework not compiled in"));
27b178e99b06a68ef52353b15bc647674d2006bcvboxsync#endif /* !VBOX_WITH_PDM_ASYNC_COMPLETION */
a3369a746b56a8966dd78619f4d191c9662f400dvboxsync /* Error message is already set correctly. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* Allocate per-image data. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Read the image configuration.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = CFGMR3QueryStringAlloc(pCurNode, "Path", &pszName);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync N_("DrvVD: Configuration error: Querying \"Path\" as string failed"));
0ccdfa1953b2f57311fb9ec01a2baf5e1e366f5avboxsync rc = CFGMR3QueryStringAlloc(pCurNode, "Format", &pszFormat);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync N_("DrvVD: Configuration error: Querying \"Format\" as string failed"));
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PCFGMNODE pCfg = CFGMR3GetChild(pCurNode, "VDConfig");
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDInterfaceAdd(&pImage->VDIConfig, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync &pThis->VDIConfigCallbacks, pCfg, &pImage->pVDIfsImage);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Open the image.
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync if (fReadOnly || pThis->fTempReadOnly || iLevel != 0)
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync /* Try to open backend in async I/O mode first. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDOpen(pThis->pDisk, pszFormat, pszName, uOpenFlags, pImage->pVDIfsImage);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync /* Seems async I/O is not supported by the backend, open in normal mode. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDOpen(pThis->pDisk, pszFormat, pszName, uOpenFlags, pImage->pVDIfsImage);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log(("%s: %d - Opened '%s' in %s mode\n", __FUNCTION__,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync VDIsReadOnly(pThis->pDisk) ? "read-only" : "read-write"));
6b223679d40f5e57e55e867e806a9f194e2cde12vboxsync rc = PDMDrvHlpVMSetError(pDrvIns, VERR_VD_IMAGE_READ_ONLY, RT_SRC_POS,
f35c44bfc9e1036d0cb376fb144cdae416c7ef3avboxsync N_("Failed to open image '%s' for writing due to wrong permissions"),
6b223679d40f5e57e55e867e806a9f194e2cde12vboxsync N_("Failed to open image '%s' in %s mode rc=%Rrc"), pszName,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync (uOpenFlags & VD_OPEN_FLAGS_READONLY) ? "read-only" : "read-write", rc);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Register a load-done callback so we can undo TempReadOnly config before
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * we get to drvvdResume. Autoamtically deregistered upon destruction.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync rc = PDMDrvHlpSSMRegisterEx(pDrvIns, 0 /* version */, 0 /* cbGuess */,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync NULL /*pfnLivePrep*/, NULL /*pfnLiveExec*/, NULL /*pfnLiveVote*/,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync NULL /*pfnSavePrep*/, NULL /*pfnSaveExec*/, NULL /*pfnSaveDone*/,
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync NULL /*pfnDonePrep*/, NULL /*pfnLoadExec*/, drvvdLoadDone);
4a23807f02e9920d92c8449bd93d84501add460avboxsync /* drvvdDestruct does the rest. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * VBox disk container media driver registration record.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* u32Version */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* szDriverName */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pszDescription */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync "Generic VBox disk media driver.",
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* fFlags */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* fClass. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* cMaxInstances */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* cbInstance */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnConstruct */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnDestruct */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnIOCtl */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnPowerOn */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnReset */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnSuspend */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnResume */
cba6719bd64ec749967bbe931230452664109857vboxsync /* pfnAttach */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnDetach */
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* pfnPowerOff */
cba6719bd64ec749967bbe931230452664109857vboxsync /* pfnSoftReset */
cba6719bd64ec749967bbe931230452664109857vboxsync /* u32EndVersion */