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/** @file
*
* Test utility to fill a given image with random data up to a certain size (sequentially).
*/
/*
* Copyright (C) 2016-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include <VBox/vd.h>
#include <iprt/errcore.h>
#include <VBox/log.h>
#include <iprt/asm.h>
#include <iprt/dir.h>
#include <iprt/string.h>
#include <iprt/stream.h>
#include <iprt/file.h>
#include <iprt/mem.h>
#include <iprt/initterm.h>
#include <iprt/getopt.h>
#include <iprt/rand.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** The error count. */
unsigned g_cErrors = 0;
/** Global RNG state. */
RTRAND g_hRand;
#define TSTVDFILL_TEST_PATTERN_SIZE _1M
static DECLCALLBACK(void) tstVDError(void *pvUser, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
{
RT_NOREF1(pvUser);
g_cErrors++;
RTPrintf("tstVDFill: Error %Rrc at %s:%u (%s): ", rc, RT_SRC_POS_ARGS);
RTPrintfV(pszFormat, va);
RTPrintf("\n");
}
static DECLCALLBACK(int) tstVDMessage(void *pvUser, const char *pszFormat, va_list va)
{
RT_NOREF1(pvUser);
RTPrintf("tstVDFill: ");
RTPrintfV(pszFormat, va);
return VINF_SUCCESS;
}
static int tstFill(const char *pszFilename, const char *pszFormat, bool fStreamOptimized, uint64_t cbDisk, uint64_t cbFill)
{
int rc;
PVDISK pVD = NULL;
VDGEOMETRY PCHS = { 0, 0, 0 };
VDGEOMETRY LCHS = { 0, 0, 0 };
PVDINTERFACE pVDIfs = NULL;
VDINTERFACEERROR VDIfError;
/** Buffer storing the random test pattern. */
uint8_t *pbTestPattern = NULL;
/* Create the virtual disk test data */
pbTestPattern = (uint8_t *)RTMemAlloc(TSTVDFILL_TEST_PATTERN_SIZE);
RTRandAdvBytes(g_hRand, pbTestPattern, TSTVDFILL_TEST_PATTERN_SIZE);
RTPrintf("Disk size is %llu bytes\n", cbDisk);
/* Create error interface. */
/* Create error interface. */
VDIfError.pfnError = tstVDError;
VDIfError.pfnMessage = tstVDMessage;
rc = VDInterfaceAdd(&VDIfError.Core, "tstVD_Error", VDINTERFACETYPE_ERROR,
NULL, sizeof(VDINTERFACEERROR), &pVDIfs);
AssertRC(rc);
#define CHECK(str) \
do \
{ \
RTPrintf("%s rc=%Rrc\n", str, rc); \
if (RT_FAILURE(rc)) \
{ \
if (pbTestPattern) \
RTMemFree(pbTestPattern); \
VDDestroy(pVD); \
g_cErrors++; \
return rc; \
} \
} while (0)
rc = VDCreate(pVDIfs, VDTYPE_HDD, &pVD);
CHECK("VDCreate()");
rc = VDCreateBase(pVD, pszFormat, pszFilename, cbDisk,
fStreamOptimized ? VD_VMDK_IMAGE_FLAGS_STREAM_OPTIMIZED : VD_IMAGE_FLAGS_NONE,
"Test image", &PCHS, &LCHS, NULL, VD_OPEN_FLAGS_NORMAL,
NULL, NULL);
CHECK("VDCreateBase()");
uint64_t uOff = 0;
uint64_t cbGb = 0;
while ( uOff < cbFill
&& RT_SUCCESS(rc))
{
size_t cbThisWrite = RT_MIN(TSTVDFILL_TEST_PATTERN_SIZE, cbFill - uOff);
rc = VDWrite(pVD, uOff, pbTestPattern, cbThisWrite);
if (RT_SUCCESS(rc))
{
uOff += cbThisWrite;
cbGb += cbThisWrite;
/* Print a message for every GB we wrote. */
if (cbGb >= _1G)
{
RTStrmPrintf(g_pStdErr, "Wrote %llu bytes\n", uOff);
cbGb = 0;
}
}
}
VDDestroy(pVD);
if (pbTestPattern)
RTMemFree(pbTestPattern);
#undef CHECK
return rc;
}
/**
* Shows help message.
*/
static void printUsage(void)
{
RTPrintf("Usage:\n"
"--disk-size <size in MB> Size of the disk\n"
"--fill-size <size in MB> How much to fill\n"
"--filename <filename> Filename of the image\n"
"--format <VDI|VMDK|...> Format to use\n"
"--streamoptimized Use the stream optimized format\n"
"--help Show this text\n");
}
static const RTGETOPTDEF g_aOptions[] =
{
{ "--disk-size", 's', RTGETOPT_REQ_UINT64 },
{ "--fill-size", 'f', RTGETOPT_REQ_UINT64 },
{ "--filename", 'p', RTGETOPT_REQ_STRING },
{ "--format", 't', RTGETOPT_REQ_STRING },
{ "--streamoptimized", 'r', RTGETOPT_REQ_NOTHING },
{ "--help", 'h', RTGETOPT_REQ_NOTHING }
};
int main(int argc, char *argv[])
{
RTR3InitExe(argc, &argv, 0);
int rc;
RTGETOPTUNION ValueUnion;
RTGETOPTSTATE GetState;
char c;
uint64_t cbDisk = 0;
uint64_t cbFill = 0;
const char *pszFilename = NULL;
const char *pszFormat = NULL;
bool fStreamOptimized = false;
rc = VDInit();
if (RT_FAILURE(rc))
return RTEXITCODE_FAILURE;
RTGetOptInit(&GetState, argc, argv, g_aOptions,
RT_ELEMENTS(g_aOptions), 1, RTGETOPTINIT_FLAGS_NO_STD_OPTS);
while ( RT_SUCCESS(rc)
&& (c = RTGetOpt(&GetState, &ValueUnion)))
{
switch (c)
{
case 's':
cbDisk = ValueUnion.u64 * _1M;
break;
case 'f':
cbFill = ValueUnion.u64 * _1M;
break;
case 'p':
pszFilename = ValueUnion.psz;
break;
case 't':
pszFormat = ValueUnion.psz;
break;
case 'r':
fStreamOptimized = true;
break;
case 'h':
default:
printUsage();
break;
}
}
if (!cbDisk || !cbFill || !pszFilename || !pszFormat)
{
RTPrintf("tstVDFill: Arguments missing!\n");
return 1;
}
rc = RTRandAdvCreateParkMiller(&g_hRand);
if (RT_FAILURE(rc))
{
RTPrintf("tstVDFill: Creating RNG failed rc=%Rrc\n", rc);
return 1;
}
RTRandAdvSeed(g_hRand, 0x12345678);
rc = tstFill(pszFilename, pszFormat, fStreamOptimized, cbDisk, cbFill);
if (RT_FAILURE(rc))
RTPrintf("tstVDFill: Filling disk failed! rc=%Rrc\n", rc);
rc = VDShutdown();
if (RT_FAILURE(rc))
RTPrintf("tstVDFill: unloading backends failed! rc=%Rrc\n", rc);
return RTEXITCODE_SUCCESS;
}
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