30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#define LOG_GROUP LOG_GROUP_VD_VDI

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include "VBoxHDD-newInternal.h"

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync#define VBOX_VDICORE_VD /* Signal that the header is included from here. */

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync#include "VDICore.h"

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync#include <VBox/err.h>

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync#include <VBox/log.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/alloc.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/assert.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/uuid.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/file.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/string.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#include <iprt/asm.h>

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#define VDI_IMAGE_DEFAULT_BLOCK_SIZE _1M

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic unsigned getPowerOfTwo(unsigned uNumber);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic void vdiInitPreHeader(PVDIPREHEADER pPreHdr);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiValidatePreHeader(PVDIPREHEADER pPreHdr);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic void vdiInitHeader(PVDIHEADER pHeader, VDIMAGETYPE enmType, uint32_t uImageFlags,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync const char *pszComment, uint64_t cbDisk, uint32_t cbBlock,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint32_t cbBlockExtra);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiValidateHeader(PVDIHEADER pHeader);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic void vdiSetupImageDesc(PVDIIMAGEDESC pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiUpdateHeader(PVDIIMAGEDESC pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiUpdateBlockInfo(PVDIIMAGEDESC pImage, unsigned uBlock);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic void vdiFreeImage(PVDIIMAGEDESC pImage, bool fDelete);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncDECLINLINE(int) vdiError(PVDIIMAGEDESC pImage, int rc, RT_SRC_POS_DECL,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync const char *pszFormat, ...)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

acca7ab818eb8c2832aa27e27ce53133fba927dbvboxsync va_list va;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync va_start(va, pszFormat);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->pfnError)

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pImage->pfnError(pImage->pvErrorUser, rc, RT_SRC_POS_ARGS,

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pszFormat, va);

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync va_end(va);

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync return rc;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync}

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsyncstatic unsigned getPowerOfTwo(unsigned uNumber)

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync{

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync if (uNumber == 0)

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync return 0;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync unsigned uPower2 = 0;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync while ((uNumber & 1) == 0)

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync {

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync uNumber >>= 1;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync uPower2++;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync }

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync return uNumber == 1 ? uPower2 : 0;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync

5eb36887f6970e0033f63fa135f3bb8fbfd6059bvboxsyncstatic void vdiInitPreHeader(PVDIPREHEADER pPreHdr)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pPreHdr->u32Signature = VDI_IMAGE_SIGNATURE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pPreHdr->u32Version = VDI_IMAGE_VERSION;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync memset(pPreHdr->szFileInfo, 0, sizeof(pPreHdr->szFileInfo));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync strncat(pPreHdr->szFileInfo, VDI_IMAGE_FILE_INFO, sizeof(pPreHdr->szFileInfo));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiValidatePreHeader(PVDIPREHEADER pPreHdr)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pPreHdr->u32Signature != VDI_IMAGE_SIGNATURE)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_INVALID_SIGNATURE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( VDI_GET_VERSION_MAJOR(pPreHdr->u32Version) != VDI_IMAGE_VERSION_MAJOR

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && pPreHdr->u32Version != 0x00000002) /* old version. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_UNSUPPORTED_VERSION;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsyncstatic void vdiInitHeader(PVDIHEADER pHeader, VDIMAGETYPE enmType, uint32_t uImageFlags,

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync const char *pszComment, uint64_t cbDisk, uint32_t cbBlock,

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync uint32_t cbBlockExtra)

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->uVersion = VDI_IMAGE_VERSION;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.cbHeader = sizeof(VDIHEADER1);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.u32Type = (uint32_t)( enmType == VD_IMAGE_TYPE_NORMAL

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync ? VDI_IMAGE_TYPE_NORMAL

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync : VDI_IMAGE_TYPE_DIFF);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.fFlags = uImageFlags;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#ifdef VBOX_STRICT

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync char achZero[VDI_IMAGE_COMMENT_SIZE] = {0};

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(!memcmp(pHeader->u.v1.szComment, achZero, VDI_IMAGE_COMMENT_SIZE));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync#endif

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.szComment[0] = '\0';

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if (pszComment)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync {

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync AssertMsg(strlen(pszComment) < sizeof(pHeader->u.v1.szComment),

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync ("HDD Comment is too long, cb=%d\n", strlen(pszComment)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync strncat(pHeader->u.v1.szComment, pszComment, sizeof(pHeader->u.v1.szComment));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* Mark the legacy geometry not-calculated. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.LegacyGeometry.cCylinders = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.LegacyGeometry.cHeads = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.LegacyGeometry.cSectors = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.LegacyGeometry.cbSector = VDI_GEOMETRY_SECTOR_SIZE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.u32Dummy = 0; /* used to be the translation value */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync pHeader->u.v1.cbDisk = cbDisk;

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync pHeader->u.v1.cbBlock = cbBlock;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.cBlocks = (uint32_t)(cbDisk / cbBlock);

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync if (cbDisk % cbBlock)

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pHeader->u.v1.cBlocks++;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pHeader->u.v1.cbBlockExtra = cbBlockExtra;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pHeader->u.v1.cBlocksAllocated = 0;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync /* Init offsets. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.offBlocks = RT_ALIGN_32(sizeof(VDIPREHEADER) + sizeof(VDIHEADER1), VDI_GEOMETRY_SECTOR_SIZE);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.offData = RT_ALIGN_32(pHeader->u.v1.offBlocks + (pHeader->u.v1.cBlocks * sizeof(VDIIMAGEBLOCKPOINTER)), VDI_GEOMETRY_SECTOR_SIZE);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Init uuids. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTUuidCreate(&pHeader->u.v1.uuidCreate);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTUuidClear(&pHeader->u.v1.uuidModify);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTUuidClear(&pHeader->u.v1.uuidLinkage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTUuidClear(&pHeader->u.v1.uuidParentModify);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Mark LCHS geometry not-calculated. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1plus.LCHSGeometry.cCylinders = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1plus.LCHSGeometry.cHeads = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1plus.LCHSGeometry.cSectors = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1plus.LCHSGeometry.cbSector = VDI_GEOMETRY_SECTOR_SIZE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiValidateHeader(PVDIHEADER pHeader)

a0a3a26a4065b9401681a8c99a11bd83e08f94ccvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Check version-dependend header parameters. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync switch (GET_MAJOR_HEADER_VERSION(pHeader))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 0:

a0a3a26a4065b9401681a8c99a11bd83e08f94ccvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Old header version. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync break;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 1:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Current header version. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pHeader->u.v1.cbHeader < sizeof(VDIHEADER1))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: v1 header size wrong (%d < %d)\n",

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pHeader->u.v1.cbHeader, sizeof(VDIHEADER1)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_INVALID_HEADER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (getImageBlocksOffset(pHeader) < (sizeof(VDIPREHEADER) + sizeof(VDIHEADER1)))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: v1 blocks offset wrong (%d < %d)\n",

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageBlocksOffset(pHeader), sizeof(VDIPREHEADER) + sizeof(VDIHEADER1)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_INVALID_HEADER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (getImageDataOffset(pHeader) < (getImageBlocksOffset(pHeader) + getImageBlocks(pHeader) * sizeof(VDIIMAGEBLOCKPOINTER)))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: v1 image data offset wrong (%d < %d)\n",

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageDataOffset(pHeader), getImageBlocksOffset(pHeader) + getImageBlocks(pHeader) * sizeof(VDIIMAGEBLOCKPOINTER)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_INVALID_HEADER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync break;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync default:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Unsupported. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return VERR_VDI_UNSUPPORTED_VERSION;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Check common header parameters. */

a0a3a26a4065b9401681a8c99a11bd83e08f94ccvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync bool fFailed = false;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( getImageType(pHeader) < VDI_IMAGE_TYPE_FIRST

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || getImageType(pHeader) > VDI_IMAGE_TYPE_LAST)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: bad image type %d\n", getImageType(pHeader)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync fFailed = true;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (getImageFlags(pHeader) & ~VD_VDI_IMAGE_FLAGS_MASK)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: bad image flags %08x\n", getImageFlags(pHeader)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync fFailed = true;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( getImageLCHSGeometry(pHeader)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && (getImageLCHSGeometry(pHeader))->cbSector != VDI_GEOMETRY_SECTOR_SIZE)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

7755c0a4b7b215f612d9d27848c2584ffafe7a66vboxsync LogRel(("VDI: wrong sector size (%d != %d)\n",

7755c0a4b7b215f612d9d27848c2584ffafe7a66vboxsync (getImageLCHSGeometry(pHeader))->cbSector, VDI_GEOMETRY_SECTOR_SIZE));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync fFailed = true;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( getImageDiskSize(pHeader) == 0

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || getImageBlockSize(pHeader) == 0

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || getImageBlocks(pHeader) == 0

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || getPowerOfTwo(getImageBlockSize(pHeader)) == 0)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: wrong size (%lld, %d, %d, %d)\n",

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageDiskSize(pHeader), getImageBlockSize(pHeader),

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync getImageBlocks(pHeader), getPowerOfTwo(getImageBlockSize(pHeader))));

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync fFailed = true;

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync }

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync if (getImageBlocksAllocated(pHeader) > getImageBlocks(pHeader))

602e0e27740395dba64bee2e0a8aef023ebd7650vboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: too many blocks allocated (%d > %d)\n"

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync " blocksize=%d disksize=%lld\n",

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageBlocksAllocated(pHeader), getImageBlocks(pHeader),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageBlockSize(pHeader), getImageDiskSize(pHeader)));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync fFailed = true;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( getImageExtraBlockSize(pHeader) != 0

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && getPowerOfTwo(getImageExtraBlockSize(pHeader)) == 0)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: wrong extra size (%d, %d)\n",

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync getImageExtraBlockSize(pHeader), getPowerOfTwo(getImageExtraBlockSize(pHeader))));

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync fFailed = true;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync }

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync if ((uint64_t)getImageBlockSize(pHeader) * getImageBlocks(pHeader) < getImageDiskSize(pHeader))

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync {

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync LogRel(("VDI: wrong disk size (%d, %d, %lld)\n",

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync getImageBlockSize(pHeader), getImageBlocks(pHeader), getImageDiskSize(pHeader)));

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync fFailed = true;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync }

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync if (RTUuidIsNull(getImageCreationUUID(pHeader)))

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync {

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync LogRel(("VDI: uuid of creator is 0\n"));

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync fFailed = true;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync }

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (RTUuidIsNull(getImageModificationUUID(pHeader)))

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogRel(("VDI: uuid of modificator is 0\n"));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync fFailed = true;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

78df65edff21c11c537f38e736707ea434ab5623vboxsync return fFailed ? VERR_VDI_INVALID_HEADER : VINF_SUCCESS;

78df65edff21c11c537f38e736707ea434ab5623vboxsync}

78df65edff21c11c537f38e736707ea434ab5623vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsyncstatic void vdiSetupImageDesc(PVDIIMAGEDESC pImage)

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync{

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->uImageFlags = getImageFlags(&pImage->Header);

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->offStartBlocks = getImageBlocksOffset(&pImage->Header);

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->offStartData = getImageDataOffset(&pImage->Header);

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->uBlockMask = getImageBlockSize(&pImage->Header) - 1;

78df65edff21c11c537f38e736707ea434ab5623vboxsync pImage->uShiftIndex2Offset =

78df65edff21c11c537f38e736707ea434ab5623vboxsync pImage->uShiftOffset2Index = getPowerOfTwo(getImageBlockSize(&pImage->Header));

78df65edff21c11c537f38e736707ea434ab5623vboxsync pImage->offStartBlockData = getImageExtraBlockSize(&pImage->Header);

78df65edff21c11c537f38e736707ea434ab5623vboxsync if (pImage->offStartBlockData != 0)

78df65edff21c11c537f38e736707ea434ab5623vboxsync pImage->uShiftIndex2Offset += getPowerOfTwo(pImage->offStartBlockData);

78df65edff21c11c537f38e736707ea434ab5623vboxsync}

78df65edff21c11c537f38e736707ea434ab5623vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiCreateImage(PVDIIMAGEDESC pImage, VDIMAGETYPE enmType,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t cbSize, unsigned uImageFlags,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync const char *pszComment,

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync PCPDMMEDIAGEOMETRY pPCHSGeometry,

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync PCPDMMEDIAGEOMETRY pLCHSGeometry,

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync PFNVMPROGRESS pfnProgress, void *pvUser,

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync unsigned uPercentStart, unsigned uPercentSpan)

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync{

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync int rc;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync RTFILE File;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t cbTotal;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t cbFill;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t uOff;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Special check for comment length. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( VALID_PTR(pszComment)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && strlen(pszComment) >= VDI_IMAGE_COMMENT_SIZE)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, VERR_VDI_COMMENT_TOO_LONG, RT_SRC_POS, N_("VDI: comment is too long for '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(VALID_PTR(pPCHSGeometry));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(VALID_PTR(pLCHSGeometry));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiInitPreHeader(&pImage->PreHeader);

78df65edff21c11c537f38e736707ea434ab5623vboxsync vdiInitHeader(&pImage->Header, enmType, uImageFlags, pszComment, cbSize, VDI_IMAGE_DEFAULT_BLOCK_SIZE, 0);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Save PCHS geometry. Not much work, and makes the flow of information

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->PCHSGeometry = *pPCHSGeometry;

78df65edff21c11c537f38e736707ea434ab5623vboxsync /* Set LCHS geometry (legacy geometry is ignored for the current 1.1+). */

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->Header.u.v1plus.LCHSGeometry.cCylinders = pLCHSGeometry->cCylinders;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->Header.u.v1plus.LCHSGeometry.cHeads = pLCHSGeometry->cHeads;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->Header.u.v1plus.LCHSGeometry.cSectors = pLCHSGeometry->cSectors;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->Header.u.v1plus.LCHSGeometry.cbSector = VDI_GEOMETRY_SECTOR_SIZE;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync pImage->paBlocks = (PVDIIMAGEBLOCKPOINTER)RTMemAlloc(sizeof(VDIIMAGEBLOCKPOINTER) * getImageBlocks(&pImage->Header));

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync if (!pImage->paBlocks)

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync {

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync rc = VERR_NO_MEMORY;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync goto out;

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync }

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync if (enmType != VD_IMAGE_TYPE_FIXED)

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* for growing images mark all blocks in paBlocks as free. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync for (unsigned i = 0; i < pImage->Header.u.v1.cBlocks; i++)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks[i] = VDI_IMAGE_BLOCK_FREE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* for fixed images mark all blocks in paBlocks as allocated */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync for (unsigned i = 0; i < pImage->Header.u.v1.cBlocks; i++)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks[i] = i;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1.cBlocksAllocated = pImage->Header.u.v1.cBlocks;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Setup image parameters. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiSetupImageDesc(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* create file */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileOpen(&File, pImage->pszFilename,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTFILE_O_READWRITE | RTFILE_O_CREATE | RTFILE_O_DENY_ALL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: cannot create image '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync cbTotal = pImage->offStartData

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync + ((uint64_t)getImageBlocks(&pImage->Header) << pImage->uShiftIndex2Offset);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (enmType == VD_IMAGE_TYPE_FIXED)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* check the free space on the disk and leave early if there is not

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTFOFF cbFree = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFsQuerySizes(pImage->pszFilename, NULL, &cbFree, NULL, NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_SUCCESS(rc) /* ignore errors */ && ((uint64_t)cbFree < cbTotal))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, VERR_DISK_FULL, RT_SRC_POS, N_("VDI: disk would overflow creating image '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (enmType == VD_IMAGE_TYPE_FIXED)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /*

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileSetSize(pImage->File, cbTotal);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Set file size to hold header and blocks array. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileSetSize(pImage->File, pImage->offStartData);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: setting image size failed for '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Generate image last-modify uuid */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTUuidCreate(getImageModificationUUID(&pImage->Header));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Write pre-header. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileWriteAt(pImage->File, 0, &pImage->PreHeader, sizeof(pImage->PreHeader), NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: writing pre-header failed for '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Write header. */

48807baed22246206b9855f41d1fd106f0679b3avboxsync rc = RTFileWriteAt(pImage->File, sizeof(pImage->PreHeader), &pImage->Header.u.v1plus, sizeof(pImage->Header.u.v1plus), NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: writing header failed for '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileWriteAt(pImage->File, pImage->offStartBlocks,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageBlocks(&pImage->Header) * sizeof(VDIIMAGEBLOCKPOINTER),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: writing block pointers failed for '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (enmType == VD_IMAGE_TYPE_FIXED)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Fill image with zeroes. We do this for every fixed-size image since on some systems

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /** @todo Starting with Linux 2.6.23, there is an fallocate() system call.

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Allocate a temporary zero-filled buffer. Use a bigger block size to optimize writing */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync const size_t cbBuf = 128 * _1K;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync void *pvBuf = RTMemTmpAllocZ(cbBuf);

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync if (!pvBuf)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_NO_MEMORY;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync cbFill = (uint64_t)getImageBlocks(&pImage->Header) << pImage->uShiftIndex2Offset;

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync uOff = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* do loop to fill all image. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync while (uOff < cbFill)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned cbChunk = (unsigned)RT_MIN(cbFill, cbBuf);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync

090c459b9e90ca46e2ce2b8c81533ade3b23f3e9vboxsync rc = RTFileWriteAt(pImage->File, pImage->offStartData + uOff,

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync pvBuf, cbChunk, NULL);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if (VBOX_FAILURE(rc))

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync {

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: writing block failed for '%s'"), pImage->pszFilename);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync goto out;

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync }

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync uOff += cbChunk;

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if (pfnProgress)

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync {

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync rc = pfnProgress(NULL /* WARNING! pVM=NULL */,

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync uPercentStart + uOff * uPercentSpan / cbFill,

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync pvUser);

090c459b9e90ca46e2ce2b8c81533ade3b23f3e9vboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTMemTmpFree(pvBuf);

090c459b9e90ca46e2ce2b8c81533ade3b23f3e9vboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_SUCCESS(rc) && pfnProgress)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pfnProgress(NULL /* WARNING! pVM=NULL */,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uPercentStart + uPercentSpan, pvUser);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFreeImage(pImage, rc != VERR_ALREADY_EXISTS);

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync return rc;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync}

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsyncstatic int vdiOpenImage(PVDIIMAGEDESC pImage, unsigned uOpenFlags)

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync{

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync int rc;

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync RTFILE File;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync pImage->uOpenFlags = uOpenFlags;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync /*

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileOpen(&File, pImage->pszFilename,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uOpenFlags & VD_OPEN_FLAGS_READONLY

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync ? RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_NONE

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync : RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync if (VBOX_FAILURE(rc))

cbfe19957042925c835c6aee6722a0e7af852783vboxsync {

cbfe19957042925c835c6aee6722a0e7af852783vboxsync /* Do NOT signal an appropriate error here, as the VD layer has the

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync goto out;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync }

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync pImage->File = File;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

cbfe19957042925c835c6aee6722a0e7af852783vboxsync /* Read pre-header. */

cbfe19957042925c835c6aee6722a0e7af852783vboxsync rc = RTFileReadAt(File, 0, &pImage->PreHeader, sizeof(pImage->PreHeader),

cbfe19957042925c835c6aee6722a0e7af852783vboxsync NULL);

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync if (VBOX_FAILURE(rc))

cbfe19957042925c835c6aee6722a0e7af852783vboxsync {

cbfe19957042925c835c6aee6722a0e7af852783vboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: error reading pre-header in '%s'"), pImage->pszFilename);

cbfe19957042925c835c6aee6722a0e7af852783vboxsync goto out;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync }

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync rc = vdiValidatePreHeader(&pImage->PreHeader);

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync if (VBOX_FAILURE(rc))

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync {

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: invalid pre-header in '%s'"), pImage->pszFilename);

7fee49908ea4b9f6cb4f9cc745633c4969ed6318vboxsync goto out;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync }

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Read header. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.uVersion = pImage->PreHeader.u32Version;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync switch (GET_MAJOR_HEADER_VERSION(&pImage->Header))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 0:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileReadAt(File, sizeof(pImage->PreHeader),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync &pImage->Header.u.v0, sizeof(pImage->Header.u.v0),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: error reading v0 header in '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync break;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 1:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileReadAt(File, sizeof(pImage->PreHeader),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync &pImage->Header.u.v1, sizeof(pImage->Header.u.v1),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: error reading v1 header in '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Convert VDI 1.1 images to VDI 1.1+ on open in read/write mode.

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( !(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && GET_MINOR_HEADER_VERSION(&pImage->Header) == 1

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync && pImage->Header.u.v1.cbHeader < sizeof(pImage->Header.u.v1plus))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1plus.cbHeader = sizeof(pImage->Header.u.v1plus);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Mark LCHS geometry not-calculated. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1plus.LCHSGeometry.cCylinders = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1plus.LCHSGeometry.cHeads = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1plus.LCHSGeometry.cSectors = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->Header.u.v1plus.LCHSGeometry.cbSector = VDI_GEOMETRY_SECTOR_SIZE;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else if (pImage->Header.u.v1.cbHeader >= sizeof(pImage->Header.u.v1plus))

a0a3a26a4065b9401681a8c99a11bd83e08f94ccvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Read the actual VDI 1.1+ header completely. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileReadAt(File, sizeof(pImage->PreHeader), &pImage->Header.u.v1plus, sizeof(pImage->Header.u.v1plus), NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, rc, RT_SRC_POS, N_("VDI: error reading v1.1+ header in '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync break;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync default:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, VERR_VDI_UNSUPPORTED_VERSION, RT_SRC_POS, N_("VDI: unsupported major version %u in '%s'"), GET_MAJOR_HEADER_VERSION(&pImage->Header), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiValidateHeader(&pImage->Header);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiError(pImage, VERR_VDI_UNSUPPORTED_VERSION, RT_SRC_POS, N_("VDI: invalid header in '%s'"), pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Setup image parameters by header. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiSetupImageDesc(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Allocate memory for blocks array. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks = (PVDIIMAGEBLOCKPOINTER)RTMemAlloc(sizeof(VDIIMAGEBLOCKPOINTER) * getImageBlocks(&pImage->Header));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (!pImage->paBlocks)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_NO_MEMORY;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Read blocks array. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileReadAt(pImage->File, pImage->offStartBlocks, pImage->paBlocks,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync getImageBlocks(&pImage->Header) * sizeof(VDIIMAGEBLOCKPOINTER),

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_FAILURE(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFreeImage(pImage, false);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiUpdateHeader(PVDIIMAGEDESC pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync switch (GET_MAJOR_HEADER_VERSION(&pImage->Header))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 0:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileWriteAt(pImage->File, sizeof(VDIPREHEADER), &pImage->Header.u.v0, sizeof(pImage->Header.u.v0), NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync break;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync case 1:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->Header.u.v1plus.cbHeader < sizeof(pImage->Header.u.v1plus))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileWriteAt(pImage->File, sizeof(VDIPREHEADER), &pImage->Header.u.v1, sizeof(pImage->Header.u.v1), NULL);

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync else

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = RTFileWriteAt(pImage->File, sizeof(VDIPREHEADER), &pImage->Header.u.v1plus, sizeof(pImage->Header.u.v1plus), NULL);

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync break;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync default:

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = VERR_VDI_UNSUPPORTED_VERSION;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync break;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync AssertMsgRC(rc, ("vdiUpdateHeader failed, filename=\"%s\" rc=%Vrc\n", pImage->pszFilename, rc));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync return rc;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync}

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsyncstatic int vdiUpdateBlockInfo(PVDIIMAGEDESC pImage, unsigned uBlock)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync{

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* Update image header. */

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync int rc = vdiUpdateHeader(pImage);

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if (VBOX_SUCCESS(rc))

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync {

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* write only one block pointer. */

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = RTFileWriteAt(pImage->File,

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync pImage->offStartBlocks + uBlock * sizeof(VDIIMAGEBLOCKPOINTER),

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync &pImage->paBlocks[uBlock],

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync sizeof(VDIIMAGEBLOCKPOINTER),

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync NULL);

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync AssertMsgRC(rc, ("vdiUpdateBlockInfo failed to update block=%u, filename=\"%s\", rc=%Vrc\n",

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync uBlock, pImage->pszFilename, rc));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync return rc;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync}

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsyncstatic void vdiFlushImage(PVDIIMAGEDESC pImage)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync{

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync {

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* Save header. */

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync int rc = vdiUpdateHeader(pImage);

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync AssertMsgRC(rc, ("vdiUpdateHeader() failed, filename=\"%s\", rc=%Vrc\n",

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync pImage->pszFilename, rc));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync RTFileFlush(pImage->File);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync}

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic void vdiFreeImage(PVDIIMAGEDESC pImage, bool fDelete)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFlushImage(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->File != NIL_RTFILE)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTFileClose(pImage->File);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->File = NIL_RTFILE;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->paBlocks)

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync {

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync RTMemFree(pImage->paBlocks);

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync pImage->paBlocks = NULL;

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if (fDelete && pImage->pszFilename)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync RTFileDelete(pImage->pszFilename);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiCheckIfValid(const char *pszFilename)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pszFilename=\"%s\"\n", pszFilename));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( !pszFilename

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || !*pszFilename)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_INVALID_PARAMETER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage = (PVDIIMAGEDESC)RTMemAllocZ(sizeof(VDIIMAGEDESC));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (!pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = VERR_NO_MEMORY;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pszFilename = pszFilename;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = vdiOpenImage(pImage, VD_OPEN_FLAGS_INFO | VD_OPEN_FLAGS_READONLY);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFreeImage(pImage, false);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync LogFlowFunc(("returns %Vrc\n", rc));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync return rc;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync}

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsyncstatic int vdiOpen(const char *pszFilename, unsigned uOpenFlags,

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync PFNVDERROR pfnError, void *pvErrorUser,

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync void **ppBackendData)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync{

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x ppBackendData=%#p\n", pszFilename, uOpenFlags, ppBackendData));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync int rc;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync PVDIIMAGEDESC pImage;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* Check open flags. All valid flags are supported. */

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync {

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync rc = VERR_INVALID_PARAMETER;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync goto out;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync }

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync /* Check remaining arguments. */

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync if ( !VALID_PTR(pszFilename)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync || !*pszFilename)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_INVALID_PARAMETER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage = (PVDIIMAGEDESC)RTMemAllocZ(sizeof(VDIIMAGEDESC));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (!pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_NO_MEMORY;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pszFilename = pszFilename;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks = NULL;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pfnError = pfnError;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pvErrorUser = pvErrorUser;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiOpenImage(pImage, uOpenFlags);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_SUCCESS(rc))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync *ppBackendData = pImage;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc (pBackendData=%#p)\n", rc, *ppBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiCreate(const char *pszFilename, VDIMAGETYPE enmType,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t cbSize, unsigned uImageFlags,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync const char *pszComment,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PCPDMMEDIAGEOMETRY pPCHSGeometry,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PCPDMMEDIAGEOMETRY pLCHSGeometry,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned uOpenFlags, PFNVMPROGRESS pfnProgress,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync void *pvUser, unsigned uPercentStart,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned uPercentSpan, PFNVDERROR pfnError,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync void *pvErrorUser, void **ppBackendData)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pszFilename=\"%s\" enmType=%d cbSize=%llu uImageFlags=%#x pszComment=\"%s\" pPCHSGeometry=%#p pLCHSGeometry=%#p uOpenFlags=%#x pfnProgress=%#p pvUser=%#p uPercentStart=%u uPercentSpan=%u pfnError=%#p pvErrorUser=%#p ppBackendData=%#p", pszFilename, enmType, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, uOpenFlags, pfnProgress, pvUser, uPercentStart, uPercentSpan, pfnError, pvErrorUser, ppBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Check open flags. All valid flags are supported. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_INVALID_PARAMETER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Check remaining arguments. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( !pszFilename

ae5fc6ddd3d2ccdb941b1aacd23f6791fecc3354vboxsync || !*pszFilename

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || (enmType != VD_IMAGE_TYPE_NORMAL && enmType != VD_IMAGE_TYPE_FIXED)

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync || cbSize < VDI_IMAGE_DEFAULT_BLOCK_SIZE

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync || !VALID_PTR(pPCHSGeometry)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync || !VALID_PTR(pLCHSGeometry))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_INVALID_PARAMETER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage = (PVDIIMAGEDESC)RTMemAllocZ(sizeof(VDIIMAGEDESC));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (!pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_NO_MEMORY;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync pImage->pszFilename = pszFilename;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->paBlocks = NULL;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pfnError = pfnError;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->pvErrorUser = pvErrorUser;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = vdiCreateImage(pImage, enmType, cbSize, uImageFlags, pszComment,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pPCHSGeometry, pLCHSGeometry,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pfnProgress, pvUser, uPercentStart, uPercentSpan);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (VBOX_SUCCESS(rc))

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* So far the image is opened in read/write mode. Make sure the

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (uOpenFlags & VD_OPEN_FLAGS_READONLY)

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync {

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync vdiFreeImage(pImage, false);

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync rc = vdiOpenImage(pImage, uOpenFlags);

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync if (VBOX_FAILURE(rc))

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync goto out;

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync *ppBackendData = pImage;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc (pBackendData=%#p)\n", rc, *ppBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiRename(void *pBackendData, const char *pszFilename)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc = VERR_NOT_IMPLEMENTED;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsyncstatic int vdiClose(void *pBackendData, bool fDelete)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Freeing a never allocated image (e.g. because the open failed) is

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFreeImage(pImage, fDelete);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

29a65fa8b740a860f86812328cf900b8d68d93bevboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiRead(void *pBackendData, uint64_t uOffset, void *pvBuf,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync size_t cbToRead, size_t *pcbActuallyRead)

29a65fa8b740a860f86812328cf900b8d68d93bevboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p uOffset=%llu pvBuf=%#p cbToRead=%zu pcbActuallyRead=%#p\n", pBackendData, uOffset, pvBuf, cbToRead, pcbActuallyRead));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned uBlock;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned offRead;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(uOffset % 512 == 0);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(cbToRead % 512 == 0);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if ( uOffset + cbToRead > getImageDiskSize(&pImage->Header)

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync || cbToRead == 0)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_INVALID_PARAMETER;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Calculate starting block number and offset inside it. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uBlock = (unsigned)(uOffset >> pImage->uShiftOffset2Index);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync offRead = (unsigned)uOffset & pImage->uBlockMask;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Clip read range to at most the rest of the block. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync cbToRead = RT_MIN(cbToRead, getImageBlockSize(&pImage->Header) - offRead);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(!(cbToRead % 512));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->paBlocks[uBlock] == VDI_IMAGE_BLOCK_FREE)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_BLOCK_FREE;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync else if (pImage->paBlocks[uBlock] == VDI_IMAGE_BLOCK_ZERO)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync memset(pvBuf, 0, cbToRead);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* block present in image file */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t u64Offset = ((uint64_t)pImage->paBlocks[uBlock] << pImage->uShiftIndex2Offset)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync + (pImage->offStartData + pImage->offStartBlockData + offRead);

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync rc = RTFileReadAt(pImage->File, u64Offset, pvBuf, cbToRead, NULL);

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync }

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

af0a09edb4c1431b606fe207d4138da008f67f13vboxsync if (VBOX_SUCCESS(rc))

af0a09edb4c1431b606fe207d4138da008f67f13vboxsync *pcbActuallyRead = cbToRead;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync return rc;

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync}

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync

602e0e27740395dba64bee2e0a8aef023ebd7650vboxsyncstatic int vdiWrite(void *pBackendData, uint64_t uOffset, const void *pvBuf,

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync size_t cbToWrite, size_t *pcbWriteProcess,

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync size_t *pcbPreRead, size_t *pcbPostRead)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p uOffset=%llu pvBuf=%#p cbToWrite=%zu pcbWriteProcess=%#p pcbPreRead=%#p pcbPostRead=%#p\n", pBackendData, uOffset, pvBuf, cbToWrite, pcbWriteProcess, pcbPreRead, pcbPostRead));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned uBlock;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned offWrite;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(uOffset % 512 == 0);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(cbToWrite % 512 == 0);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_IMAGE_READ_ONLY;

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync goto out;

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync }

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync if (cbToWrite == 0)

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync {

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync rc = VERR_INVALID_PARAMETER;

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync goto out;

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* No size check here, will do that later. For dynamic images which are

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Calculate starting block number and offset inside it. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uBlock = (unsigned)(uOffset >> pImage->uShiftOffset2Index);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync offWrite = (unsigned)uOffset & pImage->uBlockMask;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Clip write range to at most the rest of the block. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync cbToWrite = RT_MIN(cbToWrite, getImageBlockSize(&pImage->Header) - offWrite);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(!(cbToWrite % 512));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (!IS_VDI_IMAGE_BLOCK_ALLOCATED(pImage->paBlocks[uBlock]))

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync /* Block is either free or zero. */

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( !(pImage->uOpenFlags & VD_OPEN_FLAGS_HONOR_ZEROES)

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync && ( pImage->paBlocks[uBlock] == VDI_IMAGE_BLOCK_ZERO

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync || cbToWrite == getImageBlockSize(&pImage->Header)))

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync {

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync /* If the destination block is unallocated at this point, it's

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync Assert(cbToWrite % 4 == 0);

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync Assert(cbToWrite * 8 <= UINT32_MAX);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if (ASMBitFirstSet((volatile void *)pvBuf, (uint32_t)cbToWrite * 8) == -1)

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync {

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync pImage->paBlocks[uBlock] = VDI_IMAGE_BLOCK_ZERO;

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync goto out;

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync }

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync }

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if (cbToWrite == getImageBlockSize(&pImage->Header))

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync {

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync /* Full block write to previously unallocated block.

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync unsigned cBlocksAllocated = getImageBlocksAllocated(&pImage->Header);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync rc = RTFileWriteAt(pImage->File,

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync ((uint64_t)cBlocksAllocated << pImage->uShiftIndex2Offset)

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync + pImage->offStartData,

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync pvBuf, cbToWrite, NULL);

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync if (VBOX_FAILURE(rc))

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync goto out;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync pImage->paBlocks[uBlock] = cBlocksAllocated;

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync setImageBlocksAllocated(&pImage->Header, cBlocksAllocated + 1);

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync rc = vdiUpdateBlockInfo(pImage, uBlock);

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync if (VBOX_FAILURE(rc))

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync goto out;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync *pcbPreRead = 0;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync *pcbPostRead = 0;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync }

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync else

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync {

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync /* Trying to do a partial write to an unallocated block. Don't do

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync *pcbPreRead = offWrite % getImageBlockSize(&pImage->Header);

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync *pcbPostRead = getImageBlockSize(&pImage->Header) - cbToWrite - *pcbPreRead;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync rc = VERR_VDI_BLOCK_FREE;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync }

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = RTFileWriteAt(pImage->File,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync ((uint64_t)pImage->paBlocks[uBlock] << pImage->uShiftIndex2Offset)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync + pImage->offStartData + pImage->offStartBlockData + offWrite,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pvBuf, cbToWrite, NULL);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiFlush(void *pBackendData)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync int rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync vdiFlushImage(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

8d7d8eab781262b9db094374b166806c03786fa2vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic unsigned vdiGetVersion(void *pBackendData)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

b14965bee0bfb359e6ce9db6beaa4add9935fe3cvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync unsigned uVersion;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uVersion = pImage->PreHeader.u32Version;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uVersion = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %#x\n", uVersion));

bc5c5b5cd56ce8e64ada076691018f1dff17b2c2vboxsync return uVersion;

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync}

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsyncstatic int vdiGetImageType(void *pBackendData, PVDIMAGETYPE penmImageType)

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p penmImageType=%#p\n", pBackendData, penmImageType));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(penmImageType);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync *penmImageType = getImageType(&pImage->Header) == VDI_IMAGE_TYPE_NORMAL

6abae205eac4f4a16f6ad5a2a71ed1f36d6a57b0vboxsync ? VD_IMAGE_TYPE_NORMAL

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync : VD_IMAGE_TYPE_DIFF;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_NOT_OPENED;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc enmImageType=%u\n", rc, *penmImageType));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic uint64_t vdiGetSize(void *pBackendData)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uint64_t cbSize;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

090c459b9e90ca46e2ce2b8c81533ade3b23f3e9vboxsync cbSize = getImageDiskSize(&pImage->Header);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync cbSize = 0;

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %llu\n", cbSize));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return cbSize;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync}

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsyncstatic uint64_t vdiGetFileSize(void *pBackendData)

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync{

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync uint64_t cb = 0;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync Assert(pImage);

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync if (pImage)

11c2b573e2625474a51ae55ee1f3f82936f125davboxsync {

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync uint64_t cbFile;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync if (pImage->File != NIL_RTFILE)

cbfe19957042925c835c6aee6722a0e7af852783vboxsync {

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync int rc = RTFileGetSize(pImage->File, &cbFile);

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync if (VBOX_SUCCESS(rc))

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync cb += cbFile;

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync }

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync }

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync LogFlowFunc(("returns %lld\n", cb));

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync return cb;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync}

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsyncstatic int vdiGetPCHSGeometry(void *pBackendData,

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync PPDMMEDIAGEOMETRY pPCHSGeometry)

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync{

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));

db07105a44f53e9e2377ade02cd3dbe482647cb9vboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

db07105a44f53e9e2377ade02cd3dbe482647cb9vboxsync int rc;

db07105a44f53e9e2377ade02cd3dbe482647cb9vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync Assert(pImage);

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync if (pImage)

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync {

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync if (pImage->PCHSGeometry.cCylinders)

b2e90826ea719b22452d1ff7b977d4f40995b428vboxsync {

04b02ffb8824a60fd37777bc1f7d2f35104a274cvboxsync *pPCHSGeometry = pImage->PCHSGeometry;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_GEOMETRY_NOT_SET;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_NOT_OPENED;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync LogFlowFunc(("returns %Vrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync return rc;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync}

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

cbfe19957042925c835c6aee6722a0e7af852783vboxsyncstatic int vdiSetPCHSGeometry(void *pBackendData,

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync PCPDMMEDIAGEOMETRY pPCHSGeometry)

cbfe19957042925c835c6aee6722a0e7af852783vboxsync{

cbfe19957042925c835c6aee6722a0e7af852783vboxsync LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

04b02ffb8824a60fd37777bc1f7d2f35104a274cvboxsync int rc;

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync Assert(pImage);

be9960565d2df0031f0e6c8a4610f5f0ae8c1845vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync rc = VERR_VDI_IMAGE_READ_ONLY;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync goto out;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pImage->PCHSGeometry = *pPCHSGeometry;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VINF_SUCCESS;

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync }

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync else

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync rc = VERR_VDI_NOT_OPENED;

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsyncout:

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync LogFlowFunc(("returns %Vrc\n", rc));

f45123ab6638fb0a030ffbfa96598635efd24a01vboxsync return rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiGetLCHSGeometry(void *pBackendData,

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PPDMMEDIAGEOMETRY pLCHSGeometry)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));

a0a3a26a4065b9401681a8c99a11bd83e08f94ccvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync {

78df65edff21c11c537f38e736707ea434ab5623vboxsync VDIDISKGEOMETRY DummyGeo = { 0, 0, 0, VDI_GEOMETRY_SECTOR_SIZE };

78df65edff21c11c537f38e736707ea434ab5623vboxsync PVDIDISKGEOMETRY pGeometry = getImageLCHSGeometry(&pImage->Header);

78df65edff21c11c537f38e736707ea434ab5623vboxsync if (!pGeometry)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pGeometry = &DummyGeo;

78df65edff21c11c537f38e736707ea434ab5623vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if ( pGeometry->cCylinders > 0

78df65edff21c11c537f38e736707ea434ab5623vboxsync && pGeometry->cHeads > 0

78df65edff21c11c537f38e736707ea434ab5623vboxsync && pGeometry->cSectors > 0)

78df65edff21c11c537f38e736707ea434ab5623vboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pLCHSGeometry->cCylinders = pGeometry->cCylinders;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pLCHSGeometry->cHeads = pGeometry->cHeads;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pLCHSGeometry->cSectors = pGeometry->cSectors;

78df65edff21c11c537f38e736707ea434ab5623vboxsync rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_GEOMETRY_NOT_SET;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_NOT_OPENED;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic int vdiSetLCHSGeometry(void *pBackendData,

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync PCPDMMEDIAGEOMETRY pLCHSGeometry)

5d6df5999c0e844db1af3c6def0a9abac5120d3bvboxsync{

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIDISKGEOMETRY pGeometry;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync int rc;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync {

37a7e3e6f9ce5f6cabeb3f734044e9e8ca9cb1bfvboxsync if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync {

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_IMAGE_READ_ONLY;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync goto out;

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync }

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync

740011a32913a7f759d5b747def605a2b820c3fcvboxsync pGeometry = getImageLCHSGeometry(&pImage->Header);

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync if (pGeometry)

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync {

740011a32913a7f759d5b747def605a2b820c3fcvboxsync pGeometry->cCylinders = pLCHSGeometry->cCylinders;

740011a32913a7f759d5b747def605a2b820c3fcvboxsync pGeometry->cHeads = pLCHSGeometry->cHeads;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync pGeometry->cSectors = pLCHSGeometry->cSectors;

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync pGeometry->cbSector = VDI_GEOMETRY_SECTOR_SIZE;

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync /* Update header information in base image file. */

01283af355575e02820380d73a30a474f425fd3dvboxsync vdiFlushImage(pImage);

01283af355575e02820380d73a30a474f425fd3dvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VINF_SUCCESS;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync }

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync rc = VERR_VDI_NOT_OPENED;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncout:

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %Vrc\n", rc));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return rc;

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync}

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsyncstatic unsigned vdiGetImageFlags(void *pBackendData)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync{

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync unsigned uImageFlags;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync Assert(pImage);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync if (pImage)

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uImageFlags = getImageFlags(&pImage->Header);

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

37a7e3e6f9ce5f6cabeb3f734044e9e8ca9cb1bfvboxsync uImageFlags = 0;

0433783a793d5ced0dc7f9dcf102143b66e1cd2cvboxsync

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync LogFlowFunc(("returns %#x\n", uImageFlags));

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync return uImageFlags;

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync}

740011a32913a7f759d5b747def605a2b820c3fcvboxsync

740011a32913a7f759d5b747def605a2b820c3fcvboxsyncstatic unsigned vdiGetOpenFlags(void *pBackendData)

740011a32913a7f759d5b747def605a2b820c3fcvboxsync{

740011a32913a7f759d5b747def605a2b820c3fcvboxsync LogFlowFunc(("pBackendData=%#p\n", pBackendData));

be302cc3dbc037aaebbadbf9057662a88b3b23a8vboxsync PVDIIMAGEDESC pImage = (PVDIIMAGEDESC)pBackendData;

be302cc3dbc037aaebbadbf9057662a88b3b23a8vboxsync unsigned uOpenFlags;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

ed82223f8f7be1435bf9b203a0ee4fbdfc856dc8vboxsync Assert(pImage);

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync if (pImage)

63a3c5be7ac89d0d5b3386988f8c2f78df0cacf6vboxsync uOpenFlags = pImage->uOpenFlags;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync else

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync uOpenFlags = 0;

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync LogFlowFunc(("returns %#x\n", uOpenFlags));

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync return uOpenFlags;

f3abe19bdaeea1b354674327ee95707281a6ad83vboxsync}

30a23dfc653298a09d77d3045cf873b1bd6ddecfvboxsync

d8707f50ca9ff2792d9acb7addb52467098d1b47vboxsyncstatic int vdiSetOpenFlags(void *pBackendData, unsigned uOpenFlags)

d8707f50ca9ff2792d9acb7addb52467098d1b47vboxsync{

f632be0ea31134f1ce343e84c90d7984d2bf96b2vboxsync LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));