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/*
* Volume management functions
*
* Copyright 1993 Erik Bos
* Copyright 1996, 2004 Alexandre Julliard
* Copyright 1999 Petr Tomasek
* Copyright 2000 Andreas Mohr
* Copyright 2003 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "winioctl.h"
#include "ntddcdrm.h"
#define WINE_MOUNTMGR_EXTENSIONS
#include "ddk/mountmgr.h"
#include "ddk/wdm.h"
#include "kernelbase.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(volume);
#define BLOCK_SIZE 2048
#define SUPERBLOCK_SIZE BLOCK_SIZE
#define SYMBOLIC_LINK_QUERY 0x0001
#define CDFRAMES_PERSEC 75
#define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
#define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
#define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc)->TrackData[(idx) - (toc)->FirstTrack].Address)
#define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)])
#define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2))
enum fs_type
{
FS_ERROR, /* error accessing the device */
FS_UNKNOWN, /* unknown file system */
FS_FAT1216,
FS_FAT32,
FS_ISO9660,
FS_UDF /* For reference [E] = Ecma-167.pdf, [U] = udf260.pdf */
};
/* read the contents of an NT symlink object */
static NTSTATUS read_nt_symlink( const WCHAR *name, WCHAR *target, DWORD size )
{
NTSTATUS status;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE handle;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, name );
if (!(status = NtOpenSymbolicLinkObject( &handle, SYMBOLIC_LINK_QUERY, &attr )))
{
UNICODE_STRING targetW;
targetW.Buffer = target;
targetW.MaximumLength = (size - 1) * sizeof(WCHAR);
status = NtQuerySymbolicLinkObject( handle, &targetW, NULL );
if (!status) target[targetW.Length / sizeof(WCHAR)] = 0;
NtClose( handle );
}
return status;
}
/* open a handle to a device root */
static BOOL open_device_root( LPCWSTR root, HANDLE *handle )
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
if (!root) root = L"\\";
if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
return set_ntstatus( status );
}
/* query the type of a drive from the mount manager */
static DWORD get_mountmgr_drive_type( LPCWSTR root )
{
HANDLE mgr;
struct mountmgr_unix_drive data;
DWORD br;
memset( &data, 0, sizeof(data) );
if (root) data.letter = root[0];
else
{
WCHAR curdir[MAX_PATH];
GetCurrentDirectoryW( MAX_PATH, curdir );
if (curdir[1] != ':' || curdir[2] != '\\') return DRIVE_UNKNOWN;
data.letter = curdir[0];
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return DRIVE_UNKNOWN;
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE, &data, sizeof(data), &data,
sizeof(data), &br, NULL ) && GetLastError() != ERROR_MORE_DATA)
data.type = DRIVE_UNKNOWN;
CloseHandle( mgr );
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 )
{
static const WCHAR labelW[] = {'.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
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(labelW);
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), labelW, sizeof(labelW) );
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 )
{
static const WCHAR serialW[] = {'.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
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(serialW);
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), serialW, sizeof(serialW) );
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.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
DWORD *serial, DWORD *filename_len, DWORD *flags,
LPWSTR fsname, DWORD fsname_len )
{
HANDLE handle;
NTSTATUS status;
UNICODE_STRING nt_name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
FILE_FS_DEVICE_INFORMATION info;
unsigned int i;
enum fs_type type = FS_UNKNOWN;
BOOL ret = FALSE;
if (!root) root = L"\\";
if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
/* there must be exactly one backslash in the name, at the end */
for (i = 4; i < nt_name.Length / sizeof(WCHAR); i++) if (nt_name.Buffer[i] == '\\') break;
if (i != nt_name.Length / sizeof(WCHAR) - 1)
{
/* check if root contains an explicit subdir */
if (root[0] && root[1] == ':') root += 2;
while (*root == '\\') root++;
if (wcschr( root, '\\' ))
SetLastError( ERROR_DIR_NOT_ROOT );
else
SetLastError( ERROR_INVALID_NAME );
goto done;
}
/* try to open the device */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
status = NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
nt_name.Length += sizeof(WCHAR);
if (status == STATUS_SUCCESS)
{
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 );
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) );
}
/* 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 (info.DeviceType == FILE_DEVICE_CD_ROM_FILE_SYSTEM) type = FS_ISO9660;
if (label && label_len) get_filesystem_label( &nt_name, label, label_len );
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:
RtlFreeUnicodeString( &nt_name );
return ret;
}
/***********************************************************************
* GetVolumeInformationA (kernelbase.@)
*/
BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
DWORD label_len, DWORD *serial,
DWORD *filename_len, DWORD *flags,
LPSTR fsname, DWORD fsname_len )
{
WCHAR *rootW = NULL;
LPWSTR labelW, fsnameW;
BOOL ret;
if (root && !(rootW = file_name_AtoW( root, FALSE ))) return FALSE;
labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
filename_len, flags, fsnameW, fsname_len)))
{
if (label) file_name_WtoA( labelW, -1, label, label_len );
if (fsname) file_name_WtoA( fsnameW, -1, fsname, fsname_len );
}
HeapFree( GetProcessHeap(), 0, labelW );
HeapFree( GetProcessHeap(), 0, fsnameW );
return ret;
}
/***********************************************************************
* GetVolumeNameForVolumeMountPointW (kernelbase.@)
*/
BOOL WINAPI GetVolumeNameForVolumeMountPointW( LPCWSTR path, LPWSTR volume, DWORD size )
{
MOUNTMGR_MOUNT_POINT *input = NULL, *o1;
MOUNTMGR_MOUNT_POINTS *output = NULL;
WCHAR *p;
char *r;
DWORD i, i_size = 1024, o_size = 1024;
WCHAR *nonpersist_name;
WCHAR symlink_name[MAX_PATH];
NTSTATUS status;
HANDLE mgr = INVALID_HANDLE_VALUE;
BOOL ret = FALSE;
DWORD br;
TRACE("(%s, %p, %x)\n", debugstr_w(path), volume, size);
if (path[lstrlenW(path)-1] != '\\')
{
SetLastError( ERROR_INVALID_NAME );
return FALSE;
}
if (size < 50)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
/* if length of input is > 3 then it must be a mounted folder */
if (lstrlenW(path) > 3)
{
FIXME("Mounted Folders are not yet supported\n");
SetLastError( ERROR_NOT_A_REPARSE_POINT );
return FALSE;
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return FALSE;
if (!(input = HeapAlloc( GetProcessHeap(), 0, i_size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto err_ret;
}
if (!(output = HeapAlloc( GetProcessHeap(), 0, o_size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto err_ret;
}
/* construct the symlink name as "\DosDevices\C:" */
lstrcpyW( symlink_name, L"\\DosDevices\\" );
lstrcatW( symlink_name, path );
symlink_name[lstrlenW(symlink_name)-1] = 0;
/* Take the mount point and get the "nonpersistent name" */
/* We will then take that and get the volume name */
nonpersist_name = (WCHAR *)(input + 1);
status = read_nt_symlink( symlink_name, nonpersist_name, i_size - sizeof(*input) );
TRACE("read_nt_symlink got stat=%x, for %s, got <%s>\n", status,
debugstr_w(symlink_name), debugstr_w(nonpersist_name));
if (status != STATUS_SUCCESS)
{
SetLastError( ERROR_FILE_NOT_FOUND );
goto err_ret;
}
/* Now take the "nonpersistent name" and ask the mountmgr */
/* to give us all the mount points. One of them will be */
/* the volume name (format of \??\Volume{). */
memset( input, 0, sizeof(*input) ); /* clear all input parameters */
input->DeviceNameOffset = sizeof(*input);
input->DeviceNameLength = lstrlenW( nonpersist_name) * sizeof(WCHAR);
i_size = input->DeviceNameOffset + input->DeviceNameLength;
output->Size = o_size;
/* now get the true volume name from the mountmgr */
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, i_size,
output, o_size, &br, NULL ))
goto err_ret;
/* Verify and return the data, note string is not null terminated */
TRACE("found %d matching mount points\n", output->NumberOfMountPoints);
if (output->NumberOfMountPoints < 1)
{
SetLastError( ERROR_NO_VOLUME_ID );
goto err_ret;
}
o1 = &output->MountPoints[0];
/* look for the volume name in returned values */
for(i=0;i<output->NumberOfMountPoints;i++)
{
p = (WCHAR*)((char *)output + o1->SymbolicLinkNameOffset);
r = (char *)output + o1->UniqueIdOffset;
TRACE("found symlink=%s, unique=%s, devname=%s\n",
debugstr_wn(p, o1->SymbolicLinkNameLength/sizeof(WCHAR)),
debugstr_an(r, o1->UniqueIdLength),
debugstr_wn((WCHAR*)((char *)output + o1->DeviceNameOffset),
o1->DeviceNameLength/sizeof(WCHAR)));
if (!wcsncmp( p, L"\\??\\Volume{", wcslen(L"\\??\\Volume{") ))
{
/* is there space in the return variable ?? */
if ((o1->SymbolicLinkNameLength/sizeof(WCHAR))+2 > size)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
goto err_ret;
}
memcpy( volume, p, o1->SymbolicLinkNameLength );
volume[o1->SymbolicLinkNameLength / sizeof(WCHAR)] = 0;
lstrcatW( volume, L"\\" );
/* change second char from '?' to '\' */
volume[1] = '\\';
ret = TRUE;
break;
}
o1++;
}
err_ret:
HeapFree( GetProcessHeap(), 0, input );
HeapFree( GetProcessHeap(), 0, output );
CloseHandle( mgr );
return ret;
}
/***********************************************************************
* DefineDosDeviceW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DefineDosDeviceW( DWORD flags, const WCHAR *device, const WCHAR *target )
{
WCHAR link_name[15] = L"\\DosDevices\\";
UNICODE_STRING nt_name, nt_target;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
HANDLE handle;
TRACE("%#x, %s, %s\n", flags, debugstr_w(device), debugstr_w(target));
if (flags & ~(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION))
FIXME("Ignoring flags %#x.\n", flags & ~(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION));
lstrcatW( link_name, device );
RtlInitUnicodeString( &nt_name, link_name );
InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, NULL );
if (flags & DDD_REMOVE_DEFINITION)
{
if (!set_ntstatus( NtOpenSymbolicLinkObject( &handle, 0, &attr ) ))
return FALSE;
SERVER_START_REQ( unlink_object )
{
req->handle = wine_server_obj_handle( handle );
status = wine_server_call( req );
}
SERVER_END_REQ;
NtClose( handle );
return set_ntstatus( status );
}
if (!(flags & DDD_RAW_TARGET_PATH))
{
if (!RtlDosPathNameToNtPathName_U( target, &nt_target, NULL, NULL))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
}
else
RtlInitUnicodeString( &nt_target, target );
return set_ntstatus( NtCreateSymbolicLinkObject( &handle, SYMBOLIC_LINK_ALL_ACCESS, &attr, &nt_target ) );
}
/***********************************************************************
* QueryDosDeviceW (kernelbase.@)
*
* returns array of strings terminated by \0, terminated by \0
*/
DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
{
UNICODE_STRING nt_name;
NTSTATUS status;
if (!bufsize)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
return 0;
}
if (devname)
{
WCHAR name[8];
WCHAR *buffer;
DWORD dosdev, ret = 0;
if ((dosdev = RtlIsDosDeviceName_U( devname )))
{
memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
devname = name;
}
if (!(buffer = HeapAlloc( GetProcessHeap(), 0, sizeof(L"\\DosDevices\\") + lstrlenW(devname)*sizeof(WCHAR) )))
{
SetLastError( ERROR_OUTOFMEMORY );
return 0;
}
lstrcpyW( buffer, L"\\DosDevices\\" );
lstrcatW( buffer, devname );
status = read_nt_symlink( buffer, target, bufsize );
HeapFree( GetProcessHeap(), 0, buffer );
if (!set_ntstatus( status )) return 0;
ret = lstrlenW( target ) + 1;
if (ret < bufsize) target[ret++] = 0; /* add an extra null */
return ret;
}
else /* return a list of all devices */
{
OBJECT_ATTRIBUTES attr;
HANDLE handle;
WCHAR *p = target;
RtlInitUnicodeString( &nt_name, L"\\DosDevices\\" );
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenDirectoryObject( &handle, FILE_LIST_DIRECTORY, &attr );
if (!status)
{
char data[1024];
DIRECTORY_BASIC_INFORMATION *info = (DIRECTORY_BASIC_INFORMATION *)data;
ULONG ctx = 0, len;
while (!NtQueryDirectoryObject( handle, info, sizeof(data), 1, 0, &ctx, &len ))
{
if (p + info->ObjectName.Length/sizeof(WCHAR) + 1 >= target + bufsize)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
NtClose( handle );
return 0;
}
memcpy( p, info->ObjectName.Buffer, info->ObjectName.Length );
p += info->ObjectName.Length/sizeof(WCHAR);
*p++ = 0;
}
NtClose( handle );
}
*p++ = 0; /* terminating null */
return p - target;
}
}
/***********************************************************************
* GetLogicalDrives (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetLogicalDrives(void)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nt_name;
DWORD bitmask = 0;
NTSTATUS status;
HANDLE handle;
RtlInitUnicodeString( &nt_name, L"\\DosDevices\\" );
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenDirectoryObject( &handle, FILE_LIST_DIRECTORY, &attr );
if (!status)
{
char data[1024];
DIRECTORY_BASIC_INFORMATION *info = (DIRECTORY_BASIC_INFORMATION *)data;
ULONG ctx = 0, len;
while (!NtQueryDirectoryObject( handle, info, sizeof(data), 1, 0, &ctx, &len ))
if(info->ObjectName.Length == 2*sizeof(WCHAR) && info->ObjectName.Buffer[1] == ':')
bitmask |= 1 << (info->ObjectName.Buffer[0] - 'A');
NtClose( handle );
}
return bitmask;
}
/***********************************************************************
* GetLogicalDriveStringsW (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
{
DWORD drives = GetLogicalDrives();
UINT drive, count;
for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
if ((count * 4) + 1 > len) return count * 4 + 1;
for (drive = 0; drive < 26; drive++)
{
if (drives & (1 << drive))
{
*buffer++ = 'A' + drive;
*buffer++ = ':';
*buffer++ = '\\';
*buffer++ = 0;
}
}
*buffer = 0;
return count * 4;
}
/***********************************************************************
* GetDriveTypeW (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetDriveTypeW( LPCWSTR root )
{
FILE_FS_DEVICE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT ret;
if (!open_device_root( root, &handle ))
{
/* CD ROM devices do not necessarily have a volume, but a drive type */
ret = get_mountmgr_drive_type( root );
if (ret == DRIVE_CDROM || ret == DRIVE_REMOVABLE)
return ret;
return DRIVE_NO_ROOT_DIR;
}
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
NtClose( handle );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
ret = DRIVE_UNKNOWN;
}
else
{
switch (info.DeviceType)
{
case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
case FILE_DEVICE_DISK_FILE_SYSTEM:
if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
else if ((ret = get_mountmgr_drive_type( root )) == DRIVE_UNKNOWN) ret = DRIVE_FIXED;
break;
default:
ret = DRIVE_UNKNOWN;
break;
}
}
TRACE( "%s -> %d\n", debugstr_w(root), ret );
return ret;
}
/***********************************************************************
* GetDriveTypeA (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetDriveTypeA( LPCSTR root )
{
WCHAR *rootW = NULL;
if (root && !(rootW = file_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
return GetDriveTypeW( rootW );
}
/***********************************************************************
* GetDiskFreeSpaceExW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
{
FILE_FS_SIZE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT units;
TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
if (!open_device_root( root, &handle )) return FALSE;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
NtClose( handle );
if (!set_ntstatus( status )) return FALSE;
units = info.SectorsPerAllocationUnit * info.BytesPerSector;
if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
/* FIXME: this one should take quotas into account */
if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
return TRUE;
}
/***********************************************************************
* GetDiskFreeSpaceExA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
{
WCHAR *rootW = NULL;
if (root && !(rootW = file_name_AtoW( root, FALSE ))) return FALSE;
return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
}
/***********************************************************************
* GetDiskFreeSpaceW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
LPDWORD sector_bytes, LPDWORD free_clusters,
LPDWORD total_clusters )
{
FILE_FS_SIZE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT units;
TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
cluster_sectors, sector_bytes, free_clusters, total_clusters );
if (!open_device_root( root, &handle )) return FALSE;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
NtClose( handle );
if (!set_ntstatus( status )) return FALSE;
units = info.SectorsPerAllocationUnit * info.BytesPerSector;
if( GetVersion() & 0x80000000) { /* win3.x, 9x, ME */
/* cap the size and available at 2GB as per specs */
if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff) {
info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
}
/* nr. of clusters is always <= 65335 */
while( info.TotalAllocationUnits.QuadPart > 65535 ) {
info.TotalAllocationUnits.QuadPart /= 2;
info.AvailableAllocationUnits.QuadPart /= 2;
info.SectorsPerAllocationUnit *= 2;
}
}
if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
if (sector_bytes) *sector_bytes = info.BytesPerSector;
if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
TRACE("%#08x, %#08x, %#08x, %#08x\n", info.SectorsPerAllocationUnit, info.BytesPerSector,
info.AvailableAllocationUnits.u.LowPart, info.TotalAllocationUnits.u.LowPart);
return TRUE;
}
/***********************************************************************
* GetDiskFreeSpaceA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
LPDWORD sector_bytes, LPDWORD free_clusters,
LPDWORD total_clusters )
{
WCHAR *rootW = NULL;
if (root && !(rootW = file_name_AtoW( root, FALSE ))) return FALSE;
return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );
}
static BOOL is_dos_path( const UNICODE_STRING *path )
{
static const WCHAR global_prefix[4] = {'\\','?','?','\\'};
return path->Length >= 7 * sizeof(WCHAR)
&& !memcmp(path->Buffer, global_prefix, sizeof(global_prefix))
&& path->Buffer[5] == ':' && path->Buffer[6] == '\\';
}
/* resolve all symlinks in a path in-place; return FALSE if allocation failed */
static BOOL resolve_symlink( UNICODE_STRING *path )
{
OBJECT_NAME_INFORMATION *info;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE file;
ULONG size;
InitializeObjectAttributes( &attr, path, OBJ_CASE_INSENSITIVE, 0, NULL );
if (NtOpenFile( &file, SYNCHRONIZE, &attr, &io, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
return TRUE;
if (NtQueryObject( file, ObjectNameInformation, NULL, 0, &size ) != STATUS_INFO_LENGTH_MISMATCH)
{
NtClose( file );
return TRUE;
}
if (!(info = HeapAlloc( GetProcessHeap(), 0, size )))
{
NtClose( file );
return FALSE;
}
status = NtQueryObject( file, ObjectNameInformation, info, size, NULL );
NtClose( file );
if (status)
return TRUE;
RtlFreeUnicodeString( path );
status = RtlDuplicateUnicodeString( 0, &info->Name, path );
HeapFree( GetProcessHeap(), 0, info );
return !status;
}
/***********************************************************************
* GetVolumePathNameW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetVolumePathNameW( const WCHAR *path, WCHAR *volume_path, DWORD length )
{
FILE_ATTRIBUTE_TAG_INFORMATION attr_info;
FILE_BASIC_INFORMATION basic_info;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nt_name;
NTSTATUS status;
if (path && !wcsncmp(path, L"\\??\\", 4))
{
WCHAR current_drive[MAX_PATH];
GetCurrentDirectoryW( ARRAY_SIZE(current_drive), current_drive );
if (length >= 3)
{
WCHAR ret_path[4] = {current_drive[0], ':', '\\', 0};
lstrcpynW( volume_path, ret_path, length );
return TRUE;
}
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
if (!volume_path || !length || !RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (!is_dos_path( &nt_name ))
{
RtlFreeUnicodeString( &nt_name );
WARN("invalid path %s\n", debugstr_w(path));
SetLastError( ERROR_INVALID_NAME );
return FALSE;
}
InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, NULL );
while (nt_name.Length > 7 * sizeof(WCHAR))
{
IO_STATUS_BLOCK io;
HANDLE file;
if (!NtQueryAttributesFile( &attr, &basic_info )
&& (basic_info.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
&& (basic_info.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
&& !NtOpenFile( &file, SYNCHRONIZE | FILE_READ_ATTRIBUTES, &attr, &io,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_OPEN_REPARSE_POINT | FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
{
status = NtQueryInformationFile( file, &io, &attr_info,
sizeof(attr_info), FileAttributeTagInformation );
NtClose( file );
if (!status)
{
if (attr_info.ReparseTag == IO_REPARSE_TAG_MOUNT_POINT)
break;
if (!resolve_symlink( &nt_name ))
{
SetLastError( ERROR_OUTOFMEMORY );
return FALSE;
}
}
}
if (nt_name.Buffer[(nt_name.Length / sizeof(WCHAR)) - 1] == '\\')
nt_name.Length -= sizeof(WCHAR);
while (nt_name.Length && nt_name.Buffer[(nt_name.Length / sizeof(WCHAR)) - 1] != '\\')
nt_name.Length -= sizeof(WCHAR);
}
nt_name.Buffer[nt_name.Length / sizeof(WCHAR)] = 0;
if (NtQueryAttributesFile( &attr, &basic_info ))
{
RtlFreeUnicodeString( &nt_name );
WARN("nonexistent path %s -> %s\n", debugstr_w(path), debugstr_w( nt_name.Buffer ));
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
if (!wcsncmp(path, L"\\\\.\\", 4) || !wcsncmp(path, L"\\\\?\\", 4))
{
if (length >= nt_name.Length / sizeof(WCHAR))
{
memcpy(volume_path, path, 4 * sizeof(WCHAR));
lstrcpynW( volume_path + 4, nt_name.Buffer + 4, length - 4 );
TRACE("%s -> %s\n", debugstr_w(path), debugstr_w(volume_path));
RtlFreeUnicodeString( &nt_name );
return TRUE;
}
}
else if (length >= (nt_name.Length / sizeof(WCHAR)) - 4)
{
lstrcpynW( volume_path, nt_name.Buffer + 4, length );
volume_path[0] = towupper(volume_path[0]);
TRACE("%s -> %s\n", debugstr_w(path), debugstr_w(volume_path));
RtlFreeUnicodeString( &nt_name );
return TRUE;
}
RtlFreeUnicodeString( &nt_name );
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
static MOUNTMGR_MOUNT_POINTS *query_mount_points( HANDLE mgr, MOUNTMGR_MOUNT_POINT *input, DWORD insize )
{
MOUNTMGR_MOUNT_POINTS *output;
DWORD outsize = 1024;
DWORD br;
for (;;)
{
if (!(output = HeapAlloc( GetProcessHeap(), 0, outsize )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return NULL;
}
if (DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, insize, output, outsize, &br, NULL )) break;
outsize = output->Size;
HeapFree( GetProcessHeap(), 0, output );
if (GetLastError() != ERROR_MORE_DATA) return NULL;
}
return output;
}
/***********************************************************************
* GetVolumePathNamesForVolumeNameW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetVolumePathNamesForVolumeNameW( LPCWSTR volumename, LPWSTR volumepathname,
DWORD buflen, PDWORD returnlen )
{
static const WCHAR dosdevicesW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
HANDLE mgr;
DWORD len, size;
MOUNTMGR_MOUNT_POINT *spec;
MOUNTMGR_MOUNT_POINTS *link, *target = NULL;
WCHAR *name, *path;
BOOL ret = FALSE;
UINT i, j;
TRACE("%s, %p, %u, %p\n", debugstr_w(volumename), volumepathname, buflen, returnlen);
if (!volumename || (len = lstrlenW( volumename )) != 49)
{
SetLastError( ERROR_INVALID_NAME );
return FALSE;
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return FALSE;
size = sizeof(*spec) + sizeof(WCHAR) * (len - 1); /* remove trailing backslash */
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->SymbolicLinkNameOffset = sizeof(*spec);
spec->SymbolicLinkNameLength = size - sizeof(*spec);
name = (WCHAR *)((char *)spec + spec->SymbolicLinkNameOffset);
memcpy( name, volumename, size - sizeof(*spec) );
name[1] = '?'; /* map \\?\ to \??\ */
target = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
if (!target)
{
goto done;
}
if (!target->NumberOfMountPoints)
{
SetLastError( ERROR_FILE_NOT_FOUND );
goto done;
}
len = 0;
path = volumepathname;
for (i = 0; i < target->NumberOfMountPoints; i++)
{
link = NULL;
if (target->MountPoints[i].DeviceNameOffset)
{
const WCHAR *device = (const WCHAR *)((const char *)target + target->MountPoints[i].DeviceNameOffset);
USHORT device_len = target->MountPoints[i].DeviceNameLength;
size = sizeof(*spec) + device_len;
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->DeviceNameOffset = sizeof(*spec);
spec->DeviceNameLength = device_len;
memcpy( (char *)spec + spec->DeviceNameOffset, device, device_len );
link = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
}
else if (target->MountPoints[i].UniqueIdOffset)
{
const WCHAR *id = (const WCHAR *)((const char *)target + target->MountPoints[i].UniqueIdOffset);
USHORT id_len = target->MountPoints[i].UniqueIdLength;
size = sizeof(*spec) + id_len;
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->UniqueIdOffset = sizeof(*spec);
spec->UniqueIdLength = id_len;
memcpy( (char *)spec + spec->UniqueIdOffset, id, id_len );
link = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
}
if (!link) continue;
for (j = 0; j < link->NumberOfMountPoints; j++)
{
const WCHAR *linkname;
if (!link->MountPoints[j].SymbolicLinkNameOffset) continue;
linkname = (const WCHAR *)((const char *)link + link->MountPoints[j].SymbolicLinkNameOffset);
if (link->MountPoints[j].SymbolicLinkNameLength == sizeof(dosdevicesW) + 2 * sizeof(WCHAR) &&
!wcsnicmp( linkname, dosdevicesW, ARRAY_SIZE( dosdevicesW )))
{
len += 4;
if (volumepathname && len < buflen)
{
path[0] = linkname[ARRAY_SIZE( dosdevicesW )];
path[1] = ':';
path[2] = '\\';
path[3] = 0;
path += 4;
}
}
}
HeapFree( GetProcessHeap(), 0, link );
}
if (buflen <= len) SetLastError( ERROR_MORE_DATA );
else if (volumepathname)
{
volumepathname[len] = 0;
ret = TRUE;
}
if (returnlen) *returnlen = len + 1;
done:
HeapFree( GetProcessHeap(), 0, target );
CloseHandle( mgr );
return ret;
}
/***********************************************************************
* FindFirstVolumeW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH FindFirstVolumeW( LPWSTR volume, DWORD len )
{
DWORD size = 1024;
DWORD br;
HANDLE mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return INVALID_HANDLE_VALUE;
for (;;)
{
MOUNTMGR_MOUNT_POINT input;
MOUNTMGR_MOUNT_POINTS *output;
if (!(output = HeapAlloc( GetProcessHeap(), 0, size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
break;
}
memset( &input, 0, sizeof(input) );
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, &input, sizeof(input),
output, size, &br, NULL ))
{
if (GetLastError() != ERROR_MORE_DATA) break;
size = output->Size;
HeapFree( GetProcessHeap(), 0, output );
continue;
}
CloseHandle( mgr );
/* abuse the Size field to store the current index */
output->Size = 0;
if (!FindNextVolumeW( output, volume, len ))
{
HeapFree( GetProcessHeap(), 0, output );
return INVALID_HANDLE_VALUE;
}
return output;
}
CloseHandle( mgr );
return INVALID_HANDLE_VALUE;
}
/***********************************************************************
* FindNextVolumeW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH FindNextVolumeW( HANDLE handle, LPWSTR volume, DWORD len )
{
MOUNTMGR_MOUNT_POINTS *data = handle;
while (data->Size < data->NumberOfMountPoints)
{
static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{',};
WCHAR *link = (WCHAR *)((char *)data + data->MountPoints[data->Size].SymbolicLinkNameOffset);
DWORD size = data->MountPoints[data->Size].SymbolicLinkNameLength;
data->Size++;
/* skip non-volumes */
if (size < sizeof(volumeW) || memcmp( link, volumeW, sizeof(volumeW) )) continue;
if (size + sizeof(WCHAR) >= len * sizeof(WCHAR))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
memcpy( volume, link, size );
volume[1] = '\\'; /* map \??\ to \\?\ */
volume[size / sizeof(WCHAR)] = '\\'; /* Windows appends a backslash */
volume[size / sizeof(WCHAR) + 1] = 0;
TRACE( "returning entry %u %s\n", data->Size - 1, debugstr_w(volume) );
return TRUE;
}
SetLastError( ERROR_NO_MORE_FILES );
return FALSE;
}
/***********************************************************************
* FindVolumeClose (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH FindVolumeClose( HANDLE handle )
{
return HeapFree( GetProcessHeap(), 0, handle );
}
/***********************************************************************
* DeleteVolumeMountPointW (kernelbase.@)
*/
BOOL WINAPI /* DECLSPEC_HOTPATCH */ DeleteVolumeMountPointW( LPCWSTR mountpoint )
{
FIXME("(%s), stub!\n", debugstr_w(mountpoint));
return FALSE;
}
/***********************************************************************
* GetVolumeInformationByHandleW (kernelbase.@)
*/
BOOL WINAPI GetVolumeInformationByHandleW( HANDLE handle, WCHAR *label, DWORD label_len,
DWORD *serial, DWORD *filename_len, DWORD *flags,
WCHAR *fsname, DWORD fsname_len )
{
IO_STATUS_BLOCK io;
TRACE( "%p\n", handle );
if (label || serial)
{
char buffer[sizeof(FILE_FS_VOLUME_INFORMATION) + MAX_PATH * sizeof(WCHAR)];
FILE_FS_VOLUME_INFORMATION *info = (FILE_FS_VOLUME_INFORMATION *)buffer;
if (!set_ntstatus( NtQueryVolumeInformationFile( handle, &io, info, sizeof(buffer),
FileFsVolumeInformation ) ))
return FALSE;
if (label)
{
if (label_len < info->VolumeLabelLength / sizeof(WCHAR) + 1)
{
SetLastError( ERROR_BAD_LENGTH );
return FALSE;
}
memcpy( label, info->VolumeLabel, info->VolumeLabelLength );
label[info->VolumeLabelLength / sizeof(WCHAR)] = 0;
}
if (serial) *serial = info->VolumeSerialNumber;
}
if (filename_len || flags || fsname)
{
char buffer[sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + MAX_PATH * sizeof(WCHAR)];
FILE_FS_ATTRIBUTE_INFORMATION *info = (FILE_FS_ATTRIBUTE_INFORMATION *)buffer;
if (!set_ntstatus( NtQueryVolumeInformationFile( handle, &io, info, sizeof(buffer),
FileFsAttributeInformation ) ))
return FALSE;
if (fsname)
{
if (fsname_len < info->FileSystemNameLength / sizeof(WCHAR) + 1)
{
SetLastError( ERROR_BAD_LENGTH );
return FALSE;
}
memcpy( fsname, info->FileSystemName, info->FileSystemNameLength );
fsname[info->FileSystemNameLength / sizeof(WCHAR)] = 0;
}
if (filename_len) *filename_len = info->MaximumComponentNameLength;
if (flags) *flags = info->FileSystemAttributes;
}
return TRUE;
}
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