static DECLCALLBACK(int) rtFsExtProbe(RTVFSFILE hVfsFile, uint32_t *puScore)
{
int rc = VINF_SUCCESS;
uint64_t cbMedium = 0;
*puScore = RTFILESYSTEM_MATCH_SCORE_UNSUPPORTED;
rc = RTVfsFileGetSize(hVfsFile, &cbMedium);
if (RT_SUCCESS(rc))
{
if (cbMedium >= 2*sizeof(ExtSuperBlock))
{
ExtSuperBlock SuperBlock;
rc = RTVfsFileReadAt(hVfsFile, 1024, &SuperBlock, sizeof(ExtSuperBlock), NULL);
if (RT_SUCCESS(rc))
{
#if defined(RT_BIGENDIAN)
/** @todo: Convert to host endianess. */
#endif
if (SuperBlock.u16Signature == RTFILESYSTEM_EXT2_SIGNATURE)
*puScore = RTFILESYSTEM_MATCH_SCORE_SUPPORTED;
}
}
}
return rc;
}
static int tstRTFilesystem(RTTEST hTest, RTVFSFILE hVfsFile)
{
int rc = VINF_SUCCESS;
RTVFS hVfs = NIL_RTVFS;
RTTestSubF(hTest, "Create filesystem object");
rc = RTFilesystemVfsFromFile(hVfsFile, &hVfs);
if (RT_FAILURE(rc))
{
RTTestIFailed("RTFilesystemVfsFromFile -> %Rrc", rc);
return rc;
}
/* Check all blocks. */
uint64_t off = 0;
uint32_t cBlocksUsed = 0;
uint32_t cBlocksUnused = 0;
uint64_t cbFs = 0;
rc = RTVfsFileGetSize(hVfsFile, &cbFs);
if (RT_FAILURE(rc))
{
RTTestIFailed("RTVfsFileGetSize -> %Rrc", rc);
return rc;
}
while (off < cbFs)
{
bool fUsed = false;
rc = RTVfsIsRangeInUse(hVfs, off, 1024, &fUsed);
if (RT_FAILURE(rc))
{
RTTestIFailed("RTVfsIsRangeInUse -> %Rrc", rc);
break;
}
if (fUsed)
cBlocksUsed++;
else
cBlocksUnused++;
off += 1024;
}
if (RT_SUCCESS(rc))
RTTestIPrintf(RTTESTLVL_ALWAYS, "%u blocks used and %u blocks unused\n",
cBlocksUsed, cBlocksUnused);
RTVfsRelease(hVfs);
return rc;
}
