/**
* 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, NULL);
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;
}
/**
* Internal: Create a parallels image.
*/
static int parallelsCreateImage(PPARALLELSIMAGE 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 = VINF_SUCCESS;
int32_t fOpen;
if (uImageFlags & VD_IMAGE_FLAGS_FIXED)
{
rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
goto out;
}
pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
pImage->uImageFlags = uImageFlags;
pImage->PCHSGeometry = *pPCHSGeometry;
pImage->LCHSGeometry = *pLCHSGeometry;
if (!pImage->PCHSGeometry.cCylinders)
{
/* Set defaults. */
pImage->PCHSGeometry.cSectors = 63;
pImage->PCHSGeometry.cHeads = 16;
pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
}
pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
/* Create image file. */
fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
if (RT_FAILURE(rc))
{
rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
goto out;
}
if (RT_SUCCESS(rc) && pfnProgress)
pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
/* Setup image state. */
pImage->cbSize = cbSize;
pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
pImage->cAllocationBitmapEntries++;
pImage->fAllocationBitmapChanged = true;
pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
/* Round to next sector boundary. */
pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
Assert(!(pImage->cbFileCurrent % 512));
pImage->pAllocationBitmap = (uint32_t *)RTMemAllocZ(pImage->cAllocationBitmapEntries * sizeof(uint32_t));
if (!pImage->pAllocationBitmap)
rc = VERR_NO_MEMORY;
if (RT_SUCCESS(rc))
{
ParallelsHeader Header;
memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
memset(Header.Padding, 0, sizeof(Header.Padding));
/* Write header and allocation bitmap. */
rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
if (RT_SUCCESS(rc))
rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
&Header, sizeof(Header), NULL);
if (RT_SUCCESS(rc))
rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
}
out:
if (RT_SUCCESS(rc) && pfnProgress)
pfnProgress(pvUser, uPercentStart + uPercentSpan);
if (RT_FAILURE(rc))
parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
return rc;
}