/* $Id: RAW.cpp 50988 2014-04-07 19:36:54Z vboxsync $ */ /** @file * RawHDDCore - Raw Disk image, Core Code. */ /* * Copyright (C) 2006-2013 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. */ /******************************************************************************* * Header Files * *******************************************************************************/ #define LOG_GROUP LOG_GROUP_VD_RAW #include #include #include #include #include #include #include "VDBackends.h" /******************************************************************************* * Constants And Macros, Structures and Typedefs * *******************************************************************************/ /** * Raw image data structure. */ typedef struct RAWIMAGE { /** Image name. */ const char *pszFilename; /** Storage handle. */ PVDIOSTORAGE pStorage; /** Pointer to the per-disk VD interface list. */ PVDINTERFACE pVDIfsDisk; /** Pointer to the per-image VD interface list. */ PVDINTERFACE pVDIfsImage; /** Error interface. */ PVDINTERFACEERROR pIfError; /** I/O interface. */ PVDINTERFACEIOINT pIfIo; /** Open flags passed by VBoxHD layer. */ unsigned uOpenFlags; /** Image flags defined during creation or determined during open. */ unsigned uImageFlags; /** Total size of the image. */ uint64_t cbSize; /** Position in the image (only truly used for sequential access). */ uint64_t offAccess; /** Flag if this is a newly created image. */ bool fCreate; /** Physical geometry of this image. */ VDGEOMETRY PCHSGeometry; /** Logical geometry of this image. */ VDGEOMETRY LCHSGeometry; /** Sector size of the image. */ uint32_t cbSector; } RAWIMAGE, *PRAWIMAGE; /** Size of write operations when filling an image with zeroes. */ #define RAW_FILL_SIZE (128 * _1K) /** The maximum reasonable size of a floppy image (big format 2.88MB medium). */ #define RAW_MAX_FLOPPY_IMG_SIZE (512 * 82 * 48 * 2) /******************************************************************************* * Static Variables * *******************************************************************************/ /** NULL-terminated array of supported file extensions. */ static const VDFILEEXTENSION s_aRawFileExtensions[] = { {"iso", VDTYPE_DVD}, {"cdr", VDTYPE_DVD}, {"img", VDTYPE_FLOPPY}, {"ima", VDTYPE_FLOPPY}, {"dsk", VDTYPE_FLOPPY}, {"flp", VDTYPE_FLOPPY}, {"vfd", VDTYPE_FLOPPY}, {NULL, VDTYPE_INVALID} }; /******************************************************************************* * Internal Functions * *******************************************************************************/ /** * Internal. Flush image data to disk. */ static int rawFlushImage(PRAWIMAGE pImage) { int rc = VINF_SUCCESS; if ( pImage->pStorage && !(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage); return rc; } /** * Internal. Free all allocated space for representing an image except pImage, * and optionally delete the image from disk. */ static int rawFreeImage(PRAWIMAGE pImage, bool fDelete) { int rc = VINF_SUCCESS; /* Freeing a never allocated image (e.g. because the open failed) is * not signalled as an error. After all nothing bad happens. */ if (pImage) { if (pImage->pStorage) { /* No point updating the file that is deleted anyway. */ if (!fDelete) { /* For newly created images in sequential mode fill it to * the nominal size. */ if ( pImage->uOpenFlags & VD_OPEN_FLAGS_SEQUENTIAL && !(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY) && pImage->fCreate) { /* Fill rest of image with zeroes, a must for sequential * images to reach the nominal size. */ uint64_t uOff; void *pvBuf = RTMemTmpAllocZ(RAW_FILL_SIZE); if (!pvBuf) goto out; uOff = pImage->offAccess; /* Write data to all image blocks. */ while (uOff < pImage->cbSize) { unsigned cbChunk = (unsigned)RT_MIN(pImage->cbSize, RAW_FILL_SIZE); rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, uOff, pvBuf, cbChunk); if (RT_FAILURE(rc)) goto out; uOff += cbChunk; } out: if (pvBuf) RTMemTmpFree(pvBuf); } rawFlushImage(pImage); } rc = vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage); pImage->pStorage = NULL; } if (fDelete && pImage->pszFilename) vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename); } LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** * Internal: Open an image, constructing all necessary data structures. */ static int rawOpenImage(PRAWIMAGE pImage, unsigned uOpenFlags) { int rc; pImage->uOpenFlags = uOpenFlags; pImage->fCreate = false; pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk); pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage); AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER); /* * Open the image. */ rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, VDOpenFlagsToFileOpenFlags(uOpenFlags, false /* fCreate */), &pImage->pStorage); if (RT_FAILURE(rc)) { /* Do NOT signal an appropriate error here, as the VD layer has the * choice of retrying the open if it failed. */ goto out; } rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbSize); if (RT_FAILURE(rc)) goto out; if (pImage->cbSize % 512) { rc = VERR_VD_RAW_INVALID_HEADER; goto out; } pImage->uImageFlags |= VD_IMAGE_FLAGS_FIXED; out: if (RT_FAILURE(rc)) rawFreeImage(pImage, false); return rc; } /** * Internal: Create a raw image. */ static int rawCreateImage(PRAWIMAGE pImage, uint64_t cbSize, unsigned uImageFlags, const char *pszComment, PCVDGEOMETRY pPCHSGeometry, PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags, PFNVDPROGRESS pfnProgress, void *pvUser, unsigned uPercentStart, unsigned uPercentSpan) { int rc; RTFOFF cbFree = 0; uint64_t uOff; void *pvBuf = NULL; int32_t fOpen; uImageFlags |= VD_IMAGE_FLAGS_FIXED; pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY; pImage->uImageFlags = uImageFlags; pImage->fCreate = true; pImage->PCHSGeometry = *pPCHSGeometry; pImage->LCHSGeometry = *pLCHSGeometry; pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk); pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage); AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER); if (uImageFlags & VD_IMAGE_FLAGS_DIFF) { rc = vdIfError(pImage->pIfError, VERR_VD_RAW_INVALID_TYPE, RT_SRC_POS, N_("Raw: cannot create diff image '%s'"), pImage->pszFilename); goto out; } /* Create image file. */ fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */); if (uOpenFlags & VD_OPEN_FLAGS_SEQUENTIAL) fOpen &= ~RTFILE_O_READ; rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage); if (RT_FAILURE(rc)) { rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Raw: cannot create image '%s'"), pImage->pszFilename); goto out; } if (!(uOpenFlags & VD_OPEN_FLAGS_SEQUENTIAL)) { /* Check the free space on the disk and leave early if there is not * sufficient space available. */ rc = vdIfIoIntFileGetFreeSpace(pImage->pIfIo, pImage->pszFilename, &cbFree); if (RT_SUCCESS(rc) /* ignore errors */ && ((uint64_t)cbFree < cbSize)) { rc = vdIfError(pImage->pIfError, VERR_DISK_FULL, RT_SRC_POS, N_("Raw: disk would overflow creating image '%s'"), pImage->pszFilename); goto out; } /* Allocate & commit whole file if fixed image, it must be more * effective than expanding file by write operations. */ rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, cbSize); if (RT_FAILURE(rc)) { rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Raw: setting image size failed for '%s'"), pImage->pszFilename); goto out; } /* Fill image with zeroes. We do this for every fixed-size image since * on some systems (for example Windows Vista), it takes ages to write * a block near the end of a sparse file and the guest could complain * about an ATA timeout. */ pvBuf = RTMemTmpAllocZ(RAW_FILL_SIZE); if (!pvBuf) { rc = VERR_NO_MEMORY; goto out; } uOff = 0; /* Write data to all image blocks. */ while (uOff < cbSize) { unsigned cbChunk = (unsigned)RT_MIN(cbSize, RAW_FILL_SIZE); rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, uOff, pvBuf, cbChunk); if (RT_FAILURE(rc)) { rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Raw: writing block failed for '%s'"), pImage->pszFilename); goto out; } uOff += cbChunk; if (pfnProgress) { rc = pfnProgress(pvUser, uPercentStart + uOff * uPercentSpan * 98 / (cbSize * 100)); if (RT_FAILURE(rc)) goto out; } } } if (RT_SUCCESS(rc) && pfnProgress) pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100); pImage->cbSize = cbSize; rc = rawFlushImage(pImage); out: if (pvBuf) RTMemTmpFree(pvBuf); if (RT_SUCCESS(rc) && pfnProgress) pfnProgress(pvUser, uPercentStart + uPercentSpan); if (RT_FAILURE(rc)) rawFreeImage(pImage, rc != VERR_ALREADY_EXISTS); return rc; } /** @copydoc VBOXHDDBACKEND::pfnCheckIfValid */ static int rawCheckIfValid(const char *pszFilename, PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage, VDTYPE *penmType) { LogFlowFunc(("pszFilename=\"%s\" pVDIfsDisk=%#p pVDIfsImage=%#p\n", pszFilename, pVDIfsDisk, pVDIfsImage)); PVDIOSTORAGE pStorage = NULL; uint64_t cbFile; int rc = VINF_SUCCESS; char *pszSuffix = NULL; PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage); AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER); if ( !VALID_PTR(pszFilename) || !*pszFilename) { rc = VERR_INVALID_PARAMETER; goto out; } pszSuffix = RTPathSuffix(pszFilename); /* * Open the file and read the footer. */ rc = vdIfIoIntFileOpen(pIfIo, pszFilename, VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY, false /* fCreate */), &pStorage); if (RT_SUCCESS(rc)) rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile); /* Try to guess the image type based on the extension. */ if ( RT_SUCCESS(rc) && pszSuffix) { if ( !RTStrICmp(pszSuffix, ".iso") || !RTStrICmp(pszSuffix, ".cdr")) /* DVD images. */ { /* Note that there are ISO images smaller than 1 MB; it is impossible to distinguish * between raw floppy and CD images based on their size (and cannot be reliably done * based on contents, either). */ if (cbFile > 32768 && !(cbFile % 2048)) { *penmType = VDTYPE_DVD; rc = VINF_SUCCESS; } else rc = VERR_VD_RAW_INVALID_HEADER; } else if ( !RTStrICmp(pszSuffix, ".img") || !RTStrICmp(pszSuffix, ".ima") || !RTStrICmp(pszSuffix, ".dsk") || !RTStrICmp(pszSuffix, ".flp") || !RTStrICmp(pszSuffix, ".vfd")) /* Floppy images */ { if (!(cbFile % 512) && cbFile <= RAW_MAX_FLOPPY_IMG_SIZE) { *penmType = VDTYPE_FLOPPY; rc = VINF_SUCCESS; } else rc = VERR_VD_RAW_INVALID_HEADER; } else rc = VERR_VD_RAW_INVALID_HEADER; } else rc = VERR_VD_RAW_INVALID_HEADER; if (pStorage) vdIfIoIntFileClose(pIfIo, pStorage); out: LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnOpen */ static int rawOpen(const char *pszFilename, unsigned uOpenFlags, PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage, VDTYPE enmType, void **ppBackendData) { LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, ppBackendData)); int rc; PRAWIMAGE pImage; /* Check open flags. All valid flags are supported. */ if (uOpenFlags & ~VD_OPEN_FLAGS_MASK) { rc = VERR_INVALID_PARAMETER; goto out; } /* Check remaining arguments. */ if ( !VALID_PTR(pszFilename) || !*pszFilename) { rc = VERR_INVALID_PARAMETER; goto out; } pImage = (PRAWIMAGE)RTMemAllocZ(sizeof(RAWIMAGE)); if (!pImage) { rc = VERR_NO_MEMORY; goto out; } pImage->pszFilename = pszFilename; pImage->pStorage = NULL; pImage->pVDIfsDisk = pVDIfsDisk; pImage->pVDIfsImage = pVDIfsImage; rc = rawOpenImage(pImage, uOpenFlags); if (RT_SUCCESS(rc)) { if (enmType == VDTYPE_DVD) pImage->cbSector = 2048; else pImage->cbSector = 512; *ppBackendData = pImage; } else RTMemFree(pImage); out: LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnCreate */ static int rawCreate(const char *pszFilename, uint64_t cbSize, unsigned uImageFlags, const char *pszComment, PCVDGEOMETRY pPCHSGeometry, PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid, unsigned uOpenFlags, unsigned uPercentStart, unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage, PVDINTERFACE pVDIfsOperation, void **ppBackendData) { LogFlowFunc(("pszFilename=\"%s\" cbSize=%llu uImageFlags=%#x pszComment=\"%s\" pPCHSGeometry=%#p pLCHSGeometry=%#p Uuid=%RTuuid uOpenFlags=%#x uPercentStart=%u uPercentSpan=%u pVDIfsDisk=%#p pVDIfsImage=%#p pVDIfsOperation=%#p ppBackendData=%#p", pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, ppBackendData)); int rc; PRAWIMAGE pImage; PFNVDPROGRESS pfnProgress = NULL; void *pvUser = NULL; PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation); if (pIfProgress) { pfnProgress = pIfProgress->pfnProgress; pvUser = pIfProgress->Core.pvUser; } /* Check open flags. All valid flags are supported. */ if (uOpenFlags & ~VD_OPEN_FLAGS_MASK) { rc = VERR_INVALID_PARAMETER; goto out; } /* Check remaining arguments. */ if ( !VALID_PTR(pszFilename) || !*pszFilename || !VALID_PTR(pPCHSGeometry) || !VALID_PTR(pLCHSGeometry)) { rc = VERR_INVALID_PARAMETER; goto out; } pImage = (PRAWIMAGE)RTMemAllocZ(sizeof(RAWIMAGE)); if (!pImage) { rc = VERR_NO_MEMORY; goto out; } pImage->pszFilename = pszFilename; pImage->pStorage = NULL; pImage->pVDIfsDisk = pVDIfsDisk; pImage->pVDIfsImage = pVDIfsImage; rc = rawCreateImage(pImage, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, uOpenFlags, pfnProgress, pvUser, uPercentStart, uPercentSpan); if (RT_SUCCESS(rc)) { /* So far the image is opened in read/write mode. Make sure the * image is opened in read-only mode if the caller requested that. */ if (uOpenFlags & VD_OPEN_FLAGS_READONLY) { rawFreeImage(pImage, false); rc = rawOpenImage(pImage, uOpenFlags); if (RT_FAILURE(rc)) { RTMemFree(pImage); goto out; } } *ppBackendData = pImage; } else RTMemFree(pImage); out: LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnRename */ static int rawRename(void *pBackendData, const char *pszFilename) { LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename)); int rc = VINF_SUCCESS; PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; /* Check arguments. */ if ( !pImage || !pszFilename || !*pszFilename) { rc = VERR_INVALID_PARAMETER; goto out; } /* Close the image. */ rc = rawFreeImage(pImage, false); if (RT_FAILURE(rc)) goto out; /* Rename the file. */ rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0); if (RT_FAILURE(rc)) { /* The move failed, try to reopen the original image. */ int rc2 = rawOpenImage(pImage, pImage->uOpenFlags); if (RT_FAILURE(rc2)) rc = rc2; goto out; } /* Update pImage with the new information. */ pImage->pszFilename = pszFilename; /* Open the old image with new name. */ rc = rawOpenImage(pImage, pImage->uOpenFlags); if (RT_FAILURE(rc)) goto out; out: LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnClose */ static int rawClose(void *pBackendData, bool fDelete) { LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; rc = rawFreeImage(pImage, fDelete); RTMemFree(pImage); LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnRead */ static int rawRead(void *pBackendData, uint64_t uOffset, size_t cbRead, PVDIOCTX pIoCtx, size_t *pcbActuallyRead) { int rc = VINF_SUCCESS; PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset, pIoCtx, cbRead); if (RT_SUCCESS(rc)) *pcbActuallyRead = cbRead; return rc; } /** @copydoc VBOXHDDBACKEND::pfnWrite */ static int rawWrite(void *pBackendData, uint64_t uOffset, size_t cbWrite, PVDIOCTX pIoCtx, size_t *pcbWriteProcess, size_t *pcbPreRead, size_t *pcbPostRead, unsigned fWrite) { int rc = VINF_SUCCESS; PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset, pIoCtx, cbWrite, NULL, NULL); if (RT_SUCCESS(rc)) { *pcbWriteProcess = cbWrite; *pcbPostRead = 0; *pcbPreRead = 0; } return rc; } /** @copydoc VBOXHDDBACKEND::pfnFlush */ static int rawFlush(void *pBackendData, PVDIOCTX pIoCtx) { int rc = VINF_SUCCESS; PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetVersion */ static unsigned rawGetVersion(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; AssertPtr(pImage); if (pImage) return 1; else return 0; } /** @copydoc VBOXHDDBACKEND::pfnGetSize */ static uint32_t rawGetSectorSize(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; uint32_t cb = 0; AssertPtr(pImage); if (pImage && pImage->pStorage) cb = pImage->cbSector; LogFlowFunc(("returns %u\n", cb)); return cb; } /** @copydoc VBOXHDDBACKEND::pfnGetSize */ static uint64_t rawGetSize(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; uint64_t cb = 0; AssertPtr(pImage); if (pImage && pImage->pStorage) cb = pImage->cbSize; LogFlowFunc(("returns %llu\n", cb)); return cb; } /** @copydoc VBOXHDDBACKEND::pfnGetFileSize */ static uint64_t rawGetFileSize(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; uint64_t cb = 0; AssertPtr(pImage); if (pImage) { uint64_t cbFile; if (pImage->pStorage) { int rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &cbFile); if (RT_SUCCESS(rc)) cb += cbFile; } } LogFlowFunc(("returns %lld\n", cb)); return cb; } /** @copydoc VBOXHDDBACKEND::pfnGetPCHSGeometry */ static int rawGetPCHSGeometry(void *pBackendData, PVDGEOMETRY pPCHSGeometry) { LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (pImage->PCHSGeometry.cCylinders) { *pPCHSGeometry = pImage->PCHSGeometry; rc = VINF_SUCCESS; } else rc = VERR_VD_GEOMETRY_NOT_SET; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetPCHSGeometry */ static int rawSetPCHSGeometry(void *pBackendData, PCVDGEOMETRY pPCHSGeometry) { LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY) { rc = VERR_VD_IMAGE_READ_ONLY; goto out; } pImage->PCHSGeometry = *pPCHSGeometry; rc = VINF_SUCCESS; } else rc = VERR_VD_NOT_OPENED; out: LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetLCHSGeometry */ static int rawGetLCHSGeometry(void *pBackendData, PVDGEOMETRY pLCHSGeometry) { LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (pImage->LCHSGeometry.cCylinders) { *pLCHSGeometry = pImage->LCHSGeometry; rc = VINF_SUCCESS; } else rc = VERR_VD_GEOMETRY_NOT_SET; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetLCHSGeometry */ static int rawSetLCHSGeometry(void *pBackendData, PCVDGEOMETRY pLCHSGeometry) { LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY) { rc = VERR_VD_IMAGE_READ_ONLY; goto out; } pImage->LCHSGeometry = *pLCHSGeometry; rc = VINF_SUCCESS; } else rc = VERR_VD_NOT_OPENED; out: LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetImageFlags */ static unsigned rawGetImageFlags(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; unsigned uImageFlags; AssertPtr(pImage); if (pImage) uImageFlags = pImage->uImageFlags; else uImageFlags = 0; LogFlowFunc(("returns %#x\n", uImageFlags)); return uImageFlags; } /** @copydoc VBOXHDDBACKEND::pfnGetOpenFlags */ static unsigned rawGetOpenFlags(void *pBackendData) { LogFlowFunc(("pBackendData=%#p\n", pBackendData)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; unsigned uOpenFlags; AssertPtr(pImage); if (pImage) uOpenFlags = pImage->uOpenFlags; else uOpenFlags = 0; LogFlowFunc(("returns %#x\n", uOpenFlags)); return uOpenFlags; } /** @copydoc VBOXHDDBACKEND::pfnSetOpenFlags */ static int rawSetOpenFlags(void *pBackendData, unsigned uOpenFlags) { LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; /* Image must be opened and the new flags must be valid. */ if (!pImage || (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY | VD_OPEN_FLAGS_INFO | VD_OPEN_FLAGS_ASYNC_IO | VD_OPEN_FLAGS_SHAREABLE | VD_OPEN_FLAGS_SEQUENTIAL | VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS))) { rc = VERR_INVALID_PARAMETER; goto out; } /* Implement this operation via reopening the image. */ rc = rawFreeImage(pImage, false); if (RT_FAILURE(rc)) goto out; rc = rawOpenImage(pImage, uOpenFlags); out: LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetComment */ static int rawGetComment(void *pBackendData, char *pszComment, size_t cbComment) { LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetComment */ static int rawSetComment(void *pBackendData, const char *pszComment) { LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY) rc = VERR_VD_IMAGE_READ_ONLY; else rc = VERR_NOT_SUPPORTED; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetUuid */ static int rawGetUuid(void *pBackendData, PRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetUuid */ static int rawSetUuid(void *pBackendData, PCRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; LogFlowFunc(("%RTuuid\n", pUuid)); AssertPtr(pImage); if (pImage) { if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_IMAGE_READ_ONLY; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetModificationUuid */ static int rawGetModificationUuid(void *pBackendData, PRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetModificationUuid */ static int rawSetModificationUuid(void *pBackendData, PCRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_IMAGE_READ_ONLY; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetParentUuid */ static int rawGetParentUuid(void *pBackendData, PRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetParentUuid */ static int rawSetParentUuid(void *pBackendData, PCRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_IMAGE_READ_ONLY; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnGetParentModificationUuid */ static int rawGetParentModificationUuid(void *pBackendData, PRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnSetParentModificationUuid */ static int rawSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid) { LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid)); PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; int rc; AssertPtr(pImage); if (pImage) { if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)) rc = VERR_NOT_SUPPORTED; else rc = VERR_VD_IMAGE_READ_ONLY; } else rc = VERR_VD_NOT_OPENED; LogFlowFunc(("returns %Rrc\n", rc)); return rc; } /** @copydoc VBOXHDDBACKEND::pfnDump */ static void rawDump(void *pBackendData) { PRAWIMAGE pImage = (PRAWIMAGE)pBackendData; AssertPtr(pImage); if (pImage) { vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u cbSector=%llu\n", pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors, pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors, pImage->cbSize / 512); } } const VBOXHDDBACKEND g_RawBackend = { /* pszBackendName */ "RAW", /* cbSize */ sizeof(VBOXHDDBACKEND), /* uBackendCaps */ VD_CAP_CREATE_FIXED | VD_CAP_FILE | VD_CAP_ASYNC | VD_CAP_VFS, /* paFileExtensions */ s_aRawFileExtensions, /* paConfigInfo */ NULL, /* pfnCheckIfValid */ rawCheckIfValid, /* pfnOpen */ rawOpen, /* pfnCreate */ rawCreate, /* pfnRename */ rawRename, /* pfnClose */ rawClose, /* pfnRead */ rawRead, /* pfnWrite */ rawWrite, /* pfnFlush */ rawFlush, /* pfnDiscard */ NULL, /* pfnGetVersion */ rawGetVersion, /* pfnGetSectorSize */ rawGetSectorSize, /* pfnGetSize */ rawGetSize, /* pfnGetFileSize */ rawGetFileSize, /* pfnGetPCHSGeometry */ rawGetPCHSGeometry, /* pfnSetPCHSGeometry */ rawSetPCHSGeometry, /* pfnGetLCHSGeometry */ rawGetLCHSGeometry, /* pfnSetLCHSGeometry */ rawSetLCHSGeometry, /* pfnGetImageFlags */ rawGetImageFlags, /* pfnGetOpenFlags */ rawGetOpenFlags, /* pfnSetOpenFlags */ rawSetOpenFlags, /* pfnGetComment */ rawGetComment, /* pfnSetComment */ rawSetComment, /* pfnGetUuid */ rawGetUuid, /* pfnSetUuid */ rawSetUuid, /* pfnGetModificationUuid */ rawGetModificationUuid, /* pfnSetModificationUuid */ rawSetModificationUuid, /* pfnGetParentUuid */ rawGetParentUuid, /* pfnSetParentUuid */ rawSetParentUuid, /* pfnGetParentModificationUuid */ rawGetParentModificationUuid, /* pfnSetParentModificationUuid */ rawSetParentModificationUuid, /* pfnDump */ rawDump, /* pfnGetTimeStamp */ NULL, /* pfnGetParentTimeStamp */ NULL, /* pfnSetParentTimeStamp */ NULL, /* pfnGetParentFilename */ NULL, /* pfnSetParentFilename */ NULL, /* pfnComposeLocation */ genericFileComposeLocation, /* pfnComposeName */ genericFileComposeName, /* pfnCompact */ NULL, /* pfnResize */ NULL, /* pfnRepair */ NULL, /* pfnTraverseMetadata */ NULL };