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[FS_REC]

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Fix the UDFS recognizer.
Patch by Pater Hater.

CORE-9816

svn path=/trunk/; revision=71490
This commit is contained in:
Pierre Schweitzer 2016-06-01 20:13:15 +00:00
parent aa9a01829c
commit 990964945a
1 changed files with 51 additions and 45 deletions
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70
reactos/drivers/filesystems/fs_rec/udfs.c
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@ -25,74 +25,80 @@ FsRecIsUdfsVolume(IN PDEVICE_OBJECT DeviceObject,
{
PVOLSTRUCTDESC VolumeStructDesc = NULL;
LARGE_INTEGER Offset;
ULONG State = 0;
BOOLEAN ret = FALSE;
int i;
PAGED_CODE();
Offset.QuadPart = UDFS_VRS_START_OFFSET;
while (TRUE)
Offset.QuadPart = 16 * SectorSize;
for (i = 0; i < 16; i++)
{
if (!FsRecReadBlock(DeviceObject,
&Offset,
SectorSize,
SectorSize,
(PVOID)&VolumeStructDesc,
(PVOID *)&VolumeStructDesc,
NULL))
{
break;
}
switch (State)
{
case 0:
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_BEA01,
VSD_STD_ID_LEN))
{
State = 1;
DPRINT("BEA01 found\n");
}
else
{
ExFreePool(VolumeStructDesc);
return FALSE;
}
break;
case 1:
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_NSR03,
VSD_STD_ID_LEN) ||
!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_LEN))
{
DPRINT("NSR03 found\n");
ret = TRUE;
}
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_NSR02,
VSD_STD_ID_LEN))
{
State = 2;
DPRINT("NSR02 found\n");
ret = TRUE;
}
break;
case 2:
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_TEA01,
VSD_STD_ID_LEN))
{
ExFreePool(VolumeStructDesc);
return TRUE;
DPRINT("TEA01 found\n");
}
break;
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_CD001,
VSD_STD_ID_LEN))
{
DPRINT("CD001 found\n");
}
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_CDW02,
VSD_STD_ID_LEN))
{
DPRINT("CDW02 found\n");
}
if (!strncmp((const char*)VolumeStructDesc->Ident,
VSD_STD_ID_BOOT2,
VSD_STD_ID_LEN))
{
DPRINT("BOOT2 found\n");
}
Offset.QuadPart += SectorSize;
if (Offset.QuadPart == UDFS_AVDP_SECTOR)
{
ExFreePool(VolumeStructDesc);
return FALSE;
}
}
if (VolumeStructDesc)
ExFreePool(VolumeStructDesc);
return TRUE;
return ret;
}
NTSTATUS