kernelbase: Reimplement GetVolumeInformation on top of GetVolumeInformationByHandle.

Signed-off-by: Erich E. Hoover <erich.e.hoover@gmail.com>
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Erich E. Hoover 2020-05-15 22:07:10 -06:00 committed by Alexandre Julliard
parent 86333a20c8
commit 50903a1504
2 changed files with 45 additions and 578 deletions

View File

@ -1522,6 +1522,7 @@ static void test_GetVolumeInformationByHandle(void)
FILE_FS_VOLUME_INFORMATION *volume_info = (void *)buffer; FILE_FS_VOLUME_INFORMATION *volume_info = (void *)buffer;
DWORD serial, filename_len, flags; DWORD serial, filename_len, flags;
WCHAR label[20], fsname[20]; WCHAR label[20], fsname[20];
char volume[MAX_PATH+1];
IO_STATUS_BLOCK io; IO_STATUS_BLOCK io;
HANDLE file; HANDLE file;
NTSTATUS status; NTSTATUS status;
@ -1578,6 +1579,44 @@ static void test_GetVolumeInformationByHandle(void)
"expected label length %u, got %u\n", volume_info->VolumeLabelLength / sizeof(WCHAR), wcslen( label )); "expected label length %u, got %u\n", volume_info->VolumeLabelLength / sizeof(WCHAR), wcslen( label ));
CloseHandle( file ); CloseHandle( file );
/* get the unique volume name for the windows drive */
ret = GetVolumeNameForVolumeMountPointA("C:\\", volume, MAX_PATH);
ok(ret == TRUE, "GetVolumeNameForVolumeMountPointA failed\n");
/* try again with unique volume name */
file = CreateFileA( volume, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL );
ok(file != INVALID_HANDLE_VALUE, "failed to open file, error %u\n", GetLastError());
ret = pGetVolumeInformationByHandleW( file, label, ARRAY_SIZE(label), &serial,
&filename_len, &flags, fsname, ARRAY_SIZE(fsname) );
ok(ret, "got error %u\n", GetLastError());
memset(buffer, 0, sizeof(buffer));
status = NtQueryVolumeInformationFile( file, &io, buffer, sizeof(buffer), FileFsVolumeInformation );
ok(!status, "got status %#x\n", status);
ok(serial == volume_info->VolumeSerialNumber, "expected serial %08x, got %08x\n",
volume_info->VolumeSerialNumber, serial);
ok(!wcscmp( label, volume_info->VolumeLabel ), "expected label %s, got %s\n",
debugstr_w( volume_info->VolumeLabel ), debugstr_w( label ));
ok(wcslen( label ) == volume_info->VolumeLabelLength / sizeof(WCHAR),
"expected label length %u, got %u\n", volume_info->VolumeLabelLength / sizeof(WCHAR), wcslen( label ));
memset(buffer, 0, sizeof(buffer));
status = NtQueryVolumeInformationFile( file, &io, buffer, sizeof(buffer), FileFsAttributeInformation );
ok(!status, "got status %#x\n", status);
ok(flags == attr_info->FileSystemAttributes, "expected flags %#x, got %#x\n",
attr_info->FileSystemAttributes, flags);
ok(filename_len == attr_info->MaximumComponentNameLength, "expected filename_len %u, got %u\n",
attr_info->MaximumComponentNameLength, filename_len);
ok(!wcscmp( fsname, attr_info->FileSystemName ), "expected fsname %s, got %s\n",
debugstr_w( attr_info->FileSystemName ), debugstr_w( fsname ));
ok(wcslen( fsname ) == attr_info->FileSystemNameLength / sizeof(WCHAR),
"expected fsname length %u, got %u\n", attr_info->FileSystemNameLength / sizeof(WCHAR), wcslen( fsname ));
CloseHandle( file );
} }
START_TEST(volume) START_TEST(volume)

View File

@ -148,500 +148,6 @@ static DWORD get_mountmgr_drive_type( LPCWSTR root )
return data.type; return data.type;
} }
/* get the label by reading it from a file at the root of the filesystem */
static void get_filesystem_label( const UNICODE_STRING *device, WCHAR *label, DWORD len )
{
HANDLE handle;
UNICODE_STRING name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
label[0] = 0;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
name.MaximumLength = device->Length + sizeof(L".windows-label");
name.Length = name.MaximumLength - sizeof(WCHAR);
if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return;
memcpy( name.Buffer, device->Buffer, device->Length );
memcpy( name.Buffer + device->Length / sizeof(WCHAR), L".windows-label", sizeof(L".windows-label") );
if (!NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
{
char buffer[256], *p;
DWORD size;
if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
CloseHandle( handle );
p = buffer + size;
while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
*p = 0;
if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, len ))
label[len-1] = 0;
}
RtlFreeUnicodeString( &name );
}
/* get the serial number by reading it from a file at the root of the filesystem */
static DWORD get_filesystem_serial( const UNICODE_STRING *device )
{
HANDLE handle;
UNICODE_STRING name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
DWORD ret = 0;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
name.MaximumLength = device->Length + sizeof(L".windows-serial");
name.Length = name.MaximumLength - sizeof(WCHAR);
if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return 0;
memcpy( name.Buffer, device->Buffer, device->Length );
memcpy( name.Buffer + device->Length / sizeof(WCHAR), L".windows-serial", sizeof(L".windows-serial") );
if (!NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_SYNCHRONOUS_IO_NONALERT ))
{
char buffer[32];
DWORD size;
if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
CloseHandle( handle );
buffer[size] = 0;
ret = strtoul( buffer, NULL, 16 );
}
RtlFreeUnicodeString( &name );
return ret;
}
/******************************************************************
* find_cdrom_best_voldesc
*/
static DWORD find_cdrom_best_voldesc( HANDLE handle )
{
BYTE cur_vd_type, max_vd_type = 0;
BYTE buffer[0x800];
DWORD size, offs, best_offs = 0, extra_offs = 0;
for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
{
/* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
* the volume label is displaced forward by 8
*/
if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break;
if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break;
if (size != sizeof(buffer)) break;
/* check for non-ISO9660 signature */
if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8;
cur_vd_type = buffer[extra_offs];
if (cur_vd_type == 0xff) /* voldesc set terminator */
break;
if (cur_vd_type > max_vd_type)
{
max_vd_type = cur_vd_type;
best_offs = offs + extra_offs;
}
}
return best_offs;
}
/***********************************************************************
* read_fat_superblock
*/
static enum fs_type read_fat_superblock( HANDLE handle, BYTE *buff )
{
DWORD size;
/* try a fixed disk, with a FAT partition */
if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 ||
!ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ))
{
if (GetLastError() == ERROR_BAD_DEV_TYPE) return FS_UNKNOWN; /* not a real device */
return FS_ERROR;
}
if (size < SUPERBLOCK_SIZE) return FS_UNKNOWN;
/* FIXME: do really all FAT have their name beginning with
* "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
*/
if (!memcmp(buff+0x36, "FAT", 3) || !memcmp(buff+0x52, "FAT", 3))
{
/* guess which type of FAT we have */
int reasonable;
unsigned int sectors,
sect_per_fat,
total_sectors,
num_boot_sectors,
num_fats,
num_root_dir_ents,
bytes_per_sector,
sectors_per_cluster,
nclust;
sect_per_fat = GETWORD(buff, 0x16);
if (!sect_per_fat) sect_per_fat = GETLONG(buff, 0x24);
total_sectors = GETWORD(buff, 0x13);
if (!total_sectors)
total_sectors = GETLONG(buff, 0x20);
num_boot_sectors = GETWORD(buff, 0x0e);
num_fats = buff[0x10];
num_root_dir_ents = GETWORD(buff, 0x11);
bytes_per_sector = GETWORD(buff, 0x0b);
sectors_per_cluster = buff[0x0d];
/* check if the parameters are reasonable and will not cause
* arithmetic errors in the calculation */
reasonable = num_boot_sectors < total_sectors &&
num_fats < 16 &&
bytes_per_sector >= 512 && bytes_per_sector % 512 == 0 &&
sectors_per_cluster >= 1;
if (!reasonable) return FS_UNKNOWN;
sectors = total_sectors - num_boot_sectors - num_fats * sect_per_fat -
(num_root_dir_ents * 32 + bytes_per_sector - 1) / bytes_per_sector;
nclust = sectors / sectors_per_cluster;
if ((buff[0x42] == 0x28 || buff[0x42] == 0x29) &&
!memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
if (nclust < 65525)
{
if ((buff[0x26] == 0x28 || buff[0x26] == 0x29) &&
!memcmp(buff+0x36, "FAT", 3))
return FS_FAT1216;
}
}
return FS_UNKNOWN;
}
/***********************************************************************
* read_cd_block
*/
static BOOL read_cd_block( HANDLE handle, BYTE *buff, INT offs )
{
DWORD size, whence = offs >= 0 ? FILE_BEGIN : FILE_END;
if (SetFilePointer( handle, offs, NULL, whence ) != offs ||
!ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
size != SUPERBLOCK_SIZE)
return FALSE;
return TRUE;
}
/***********************************************************************
* read_cd_superblock
*/
static enum fs_type read_cd_superblock( HANDLE handle, BYTE *buff )
{
int i;
DWORD offs;
/* Check UDF first as UDF and ISO9660 structures can coexist on the same medium
* Starting from sector 16, we may find :
* - a CD-ROM Volume Descriptor Set (ISO9660) containing one or more Volume Descriptors
* - an Extended Area (UDF) -- [E] 2/8.3.1 and [U] 2.1.7
* There is no explicit end so read 16 sectors and then give up */
for( i=16; i<16+16; i++)
{
if (!read_cd_block(handle, buff, i*BLOCK_SIZE))
continue;
/* We are supposed to check "BEA01", "NSR0x" and "TEA01" IDs + verify tag checksum
* but we assume the volume is well-formatted */
if (!memcmp(&buff[1], "BEA01", 5)) return FS_UDF;
}
offs = find_cdrom_best_voldesc( handle );
if (!offs) return FS_UNKNOWN;
if (!read_cd_block(handle, buff, offs))
return FS_ERROR;
/* check for the iso9660 identifier */
if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
return FS_UNKNOWN;
}
/**************************************************************************
* udf_find_pvd
*/
static BOOL udf_find_pvd( HANDLE handle, BYTE pvd[] )
{
unsigned int i;
DWORD offset;
INT locations[] = { 256, -1, -257, 512 };
for(i=0; i<ARRAY_SIZE(locations); i++)
{
if (!read_cd_block(handle, pvd, locations[i]*BLOCK_SIZE))
return FALSE;
/* Tag Identifier of Anchor Volume Descriptor Pointer is 2 -- [E] 3/10.2.1 */
if (pvd[0]==2 && pvd[1]==0)
{
/* Tag location (Uint32) at offset 12, little-endian */
offset = pvd[20 + 0];
offset |= pvd[20 + 1] << 8;
offset |= pvd[20 + 2] << 16;
offset |= pvd[20 + 3] << 24;
offset *= BLOCK_SIZE;
if (!read_cd_block(handle, pvd, offset))
return FALSE;
/* Check for the Primary Volume Descriptor Tag Id -- [E] 3/10.1.1 */
if (pvd[0]!=1 || pvd[1]!=0)
return FALSE;
/* 8 or 16 bits per character -- [U] 2.1.1 */
if (!(pvd[24]==8 || pvd[24]==16))
return FALSE;
return TRUE;
}
}
return FALSE;
}
/**************************************************************************
* get_superblock_label
*/
static void get_superblock_label( const UNICODE_STRING *device, HANDLE handle,
enum fs_type type, const BYTE *superblock,
WCHAR *label, DWORD len )
{
const BYTE *label_ptr = NULL;
DWORD label_len;
switch(type)
{
case FS_ERROR:
label_len = 0;
break;
case FS_UNKNOWN:
get_filesystem_label( device, label, len );
return;
case FS_FAT1216:
label_ptr = superblock + 0x2b;
label_len = 11;
break;
case FS_FAT32:
label_ptr = superblock + 0x47;
label_len = 11;
break;
case FS_ISO9660:
{
BYTE ver = superblock[0x5a];
if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
{ /* yippee, unicode */
unsigned int i;
if (len > 17) len = 17;
for (i = 0; i < len-1; i++)
label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
label[i] = 0;
while (i && label[i-1] == ' ') label[--i] = 0;
return;
}
label_ptr = superblock + 40;
label_len = 32;
break;
}
case FS_UDF:
{
BYTE pvd[BLOCK_SIZE];
if(!udf_find_pvd(handle, pvd))
{
label_len = 0;
break;
}
/* [E] 3/10.1.4 and [U] 2.1.1 */
if(pvd[24]==8)
{
label_ptr = pvd + 24 + 1;
label_len = pvd[24+32-1];
break;
}
else
{
unsigned int i;
label_len = 1 + pvd[24+32-1];
for(i=0; i<label_len && i<len; i+=2)
label[i/2] = (pvd[24+1 +i] << 8) | pvd[24+1 +i+1];
label[label_len] = 0;
return;
}
}
}
if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
&label_len, (LPCSTR)label_ptr, label_len );
label_len /= sizeof(WCHAR);
label[label_len] = 0;
while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
}
/**************************************************************************
* udf_find_fsd_sector
*/
static int udf_find_fsd_sector( HANDLE handle, BYTE block[] )
{
int i, PVD_sector, PD_sector, PD_length;
if(!udf_find_pvd(handle,block))
goto default_sector;
/* Retrieve the tag location of the PVD -- [E] 3/7.2 */
PVD_sector = block[12 + 0];
PVD_sector |= block[12 + 1] << 8;
PVD_sector |= block[12 + 2] << 16;
PVD_sector |= block[12 + 3] << 24;
/* Find the Partition Descriptor */
for(i=PVD_sector+1; ; i++)
{
if(!read_cd_block(handle, block, i*BLOCK_SIZE))
goto default_sector;
/* Partition Descriptor Tag Id -- [E] 3/10.5.1 */
if(block[0]==5 && block[1]==0)
break;
/* Terminating Descriptor Tag Id -- [E] 3/10.9.1 */
if(block[0]==8 && block[1]==0)
goto default_sector;
}
/* Find the partition starting location -- [E] 3/10.5.8 */
PD_sector = block[188 + 0];
PD_sector |= block[188 + 1] << 8;
PD_sector |= block[188 + 2] << 16;
PD_sector |= block[188 + 3] << 24;
/* Find the partition length -- [E] 3/10.5.9 */
PD_length = block[192 + 0];
PD_length |= block[192 + 1] << 8;
PD_length |= block[192 + 2] << 16;
PD_length |= block[192 + 3] << 24;
for(i=PD_sector; i<PD_sector+PD_length; i++)
{
if(!read_cd_block(handle, block, i*BLOCK_SIZE))
goto default_sector;
/* File Set Descriptor Tag Id -- [E] 3/14.1.1 */
if(block[0]==0 && block[1]==1)
return i;
}
default_sector:
WARN("FSD sector not found, serial may be incorrect\n");
return 257;
}
/**************************************************************************
* get_superblock_serial
*/
static DWORD get_superblock_serial( const UNICODE_STRING *device, HANDLE handle,
enum fs_type type, const BYTE *superblock )
{
int FSD_sector;
BYTE block[BLOCK_SIZE];
switch(type)
{
case FS_ERROR:
break;
case FS_UNKNOWN:
return get_filesystem_serial( device );
case FS_FAT1216:
return GETLONG( superblock, 0x27 );
case FS_FAT32:
return GETLONG( superblock, 0x33 );
case FS_UDF:
FSD_sector = udf_find_fsd_sector(handle, block);
if (!read_cd_block(handle, block, FSD_sector*BLOCK_SIZE))
break;
superblock = block;
/* fallthrough */
case FS_ISO9660:
{
BYTE sum[4];
int i;
sum[0] = sum[1] = sum[2] = sum[3] = 0;
for (i = 0; i < 2048; i += 4)
{
/* DON'T optimize this into DWORD !! (breaks overflow) */
sum[0] += superblock[i+0];
sum[1] += superblock[i+1];
sum[2] += superblock[i+2];
sum[3] += superblock[i+3];
}
/*
* OK, another braindead one... argh. Just believe it.
* Me$$ysoft chose to reverse the serial number in NT4/W2K.
* It's true and nobody will ever be able to change it.
*/
if ((GetVersion() & 0x80000000) || type == FS_UDF)
return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
else
return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
}
}
return 0;
}
/**************************************************************************
* get_audiocd_serial
*/
static DWORD get_audiocd_serial( const CDROM_TOC *toc )
{
DWORD serial = 0;
int i;
for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
serial += ((toc->TrackData[i].Address[1] << 16) |
(toc->TrackData[i].Address[2] << 8) |
toc->TrackData[i].Address[3]);
/*
* dwStart, dwEnd collect the beginning and end of the disc respectively, in
* frames.
* There it is collected for correcting the serial when there are less than
* 3 tracks.
*/
if (toc->LastTrack - toc->FirstTrack + 1 < 3)
{
DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
serial += dwEnd - dwStart;
}
return serial;
}
/*********************************************************************** /***********************************************************************
* GetVolumeInformationW (kernelbase.@) * GetVolumeInformationW (kernelbase.@)
@ -655,9 +161,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetVolumeInformationW( LPCWSTR root, LPWSTR label,
UNICODE_STRING nt_name; UNICODE_STRING nt_name;
IO_STATUS_BLOCK io; IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr; OBJECT_ATTRIBUTES attr;
FILE_FS_DEVICE_INFORMATION info;
unsigned int i; unsigned int i;
enum fs_type type = FS_UNKNOWN;
BOOL ret = FALSE; BOOL ret = FALSE;
if (!root) root = L"\\"; if (!root) root = L"\\";
@ -680,8 +184,6 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetVolumeInformationW( LPCWSTR root, LPWSTR label,
goto done; goto done;
} }
/* try to open the device */
attr.Length = sizeof(attr); attr.Length = sizeof(attr);
attr.RootDirectory = 0; attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE; attr.Attributes = OBJ_CASE_INSENSITIVE;
@ -694,94 +196,20 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetVolumeInformationW( LPCWSTR root, LPWSTR label,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ); FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
nt_name.Length += sizeof(WCHAR); nt_name.Length += sizeof(WCHAR);
if (status == STATUS_SUCCESS) if (status)
{
BYTE superblock[SUPERBLOCK_SIZE];
CDROM_TOC toc;
DWORD br;
/* check for audio CD */
/* FIXME: we only check the first track for now */
if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
{
if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
{
TRACE( "%s: found audio CD\n", debugstr_w(nt_name.Buffer) );
if (label) lstrcpynW( label, L"Audio CD", label_len );
if (serial) *serial = get_audiocd_serial( &toc );
CloseHandle( handle );
type = FS_ISO9660;
goto fill_fs_info;
}
type = read_cd_superblock( handle, superblock );
}
else
{
type = read_fat_superblock( handle, superblock );
if (type == FS_UNKNOWN) type = read_cd_superblock( handle, superblock );
}
TRACE( "%s: found fs type %d\n", debugstr_w(nt_name.Buffer), type );
if (type == FS_ERROR)
{
CloseHandle( handle );
goto done;
}
if (label && label_len) get_superblock_label( &nt_name, handle, type, superblock, label, label_len );
if (serial) *serial = get_superblock_serial( &nt_name, handle, type, superblock );
CloseHandle( handle );
goto fill_fs_info;
}
else
{ {
TRACE( "cannot open device %s: %x\n", debugstr_w(nt_name.Buffer), status ); TRACE( "cannot open device %s: %x\n", debugstr_w(nt_name.Buffer), status );
if (status == STATUS_ACCESS_DENIED) if (status == STATUS_ACCESS_DENIED)
MESSAGE( "wine: Read access denied for device %s, FS volume label and serial are not available.\n", debugstr_w(nt_name.Buffer) ); MESSAGE( "wine: Read access denied for device %s, FS volume label and serial are not available.\n", debugstr_w(nt_name.Buffer) );
status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
} }
/* we couldn't open the device, fallback to default strategy */
if (!set_ntstatus( NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT )))
goto done;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
NtClose( handle );
if (!set_ntstatus( status )) goto done; if (!set_ntstatus( status )) goto done;
if (info.DeviceType == FILE_DEVICE_CD_ROM_FILE_SYSTEM) type = FS_ISO9660; ret = GetVolumeInformationByHandleW( handle, label, label_len, serial, filename_len, flags,
fsname, fsname_len );
if (label && label_len) get_filesystem_label( &nt_name, label, label_len ); NtClose( handle );
if (serial) *serial = get_filesystem_serial( &nt_name );
fill_fs_info: /* now fill in the information that depends on the file system type */
switch(type)
{
case FS_ISO9660:
if (fsname) lstrcpynW( fsname, L"CDFS", fsname_len );
if (filename_len) *filename_len = 221;
if (flags) *flags = FILE_READ_ONLY_VOLUME;
break;
case FS_UDF:
if (fsname) lstrcpynW( fsname, L"UDF", fsname_len );
if (filename_len) *filename_len = 255;
if (flags)
*flags = FILE_READ_ONLY_VOLUME | FILE_UNICODE_ON_DISK | FILE_CASE_SENSITIVE_SEARCH;
break;
case FS_FAT1216:
if (fsname) lstrcpynW( fsname, L"FAT", fsname_len );
case FS_FAT32:
if (type == FS_FAT32 && fsname) lstrcpynW( fsname, L"FAT32", fsname_len );
if (filename_len) *filename_len = 255;
if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
break;
default:
if (fsname) lstrcpynW( fsname, L"NTFS", fsname_len );
if (filename_len) *filename_len = 255;
if (flags) *flags = FILE_CASE_PRESERVED_NAMES | FILE_PERSISTENT_ACLS;
break;
}
ret = TRUE;
done: done:
RtlFreeUnicodeString( &nt_name ); RtlFreeUnicodeString( &nt_name );