2 * Volume management functions
4 * Copyright 1993 Erik Bos
5 * Copyright 1996, 2004 Alexandre Julliard
6 * Copyright 1999 Petr Tomasek
7 * Copyright 2000 Andreas Mohr
8 * Copyright 2003 Eric Pouech
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include "wine/port.h"
33 #define WIN32_NO_STATUS
40 #define WINE_MOUNTMGR_EXTENSIONS
41 #include "ddk/mountmgr.h"
42 #include "kernel_private.h"
43 #include "wine/library.h"
44 #include "wine/unicode.h"
45 #include "wine/debug.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(volume);
49 #define BLOCK_SIZE 2048
50 #define SUPERBLOCK_SIZE BLOCK_SIZE
51 #define SYMBOLIC_LINK_QUERY 0x0001
53 #define CDFRAMES_PERSEC 75
54 #define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
55 #define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
56 #define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc)->TrackData[(idx) - (toc)->FirstTrack].Address)
58 #define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)])
59 #define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2))
63 FS_ERROR, /* error accessing the device */
64 FS_UNKNOWN, /* unknown file system */
68 FS_UDF /* For reference [E] = Ecma-167.pdf, [U] = udf260.pdf */
71 /* read a Unix symlink; returned buffer must be freed by caller */
72 static char *read_symlink( const char *path )
79 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
81 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
84 ret = readlink( path, buffer, size );
88 HeapFree( GetProcessHeap(), 0, buffer );
96 HeapFree( GetProcessHeap(), 0, buffer );
101 /* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */
102 static char *get_dos_device_path( LPCWSTR name )
104 const char *config_dir = wine_get_config_dir();
108 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
109 strlen(config_dir) + sizeof("/dosdevices/") + 5 )))
111 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
114 strcpy( buffer, config_dir );
115 strcat( buffer, "/dosdevices/" );
116 dev = buffer + strlen(buffer);
117 /* no codepage conversion, DOS device names are ASCII anyway */
118 for (i = 0; i < 5; i++)
119 if (!(dev[i] = (char)tolowerW(name[i]))) break;
124 /* read the contents of an NT symlink object */
125 static NTSTATUS read_nt_symlink( const WCHAR *name, WCHAR *target, DWORD size )
128 OBJECT_ATTRIBUTES attr;
129 UNICODE_STRING nameW;
132 attr.Length = sizeof(attr);
133 attr.RootDirectory = 0;
134 attr.Attributes = OBJ_CASE_INSENSITIVE;
135 attr.ObjectName = &nameW;
136 attr.SecurityDescriptor = NULL;
137 attr.SecurityQualityOfService = NULL;
138 RtlInitUnicodeString( &nameW, name );
140 if (!(status = NtOpenSymbolicLinkObject( &handle, SYMBOLIC_LINK_QUERY, &attr )))
142 UNICODE_STRING targetW;
143 targetW.Buffer = target;
144 targetW.MaximumLength = (size - 1) * sizeof(WCHAR);
145 status = NtQuerySymbolicLinkObject( handle, &targetW, NULL );
146 if (!status) target[targetW.Length / sizeof(WCHAR)] = 0;
152 /* open a handle to a device root */
153 static BOOL open_device_root( LPCWSTR root, HANDLE *handle )
155 static const WCHAR default_rootW[] = {'\\',0};
156 UNICODE_STRING nt_name;
157 OBJECT_ATTRIBUTES attr;
161 if (!root) root = default_rootW;
162 if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
164 SetLastError( ERROR_PATH_NOT_FOUND );
167 attr.Length = sizeof(attr);
168 attr.RootDirectory = 0;
169 attr.Attributes = OBJ_CASE_INSENSITIVE;
170 attr.ObjectName = &nt_name;
171 attr.SecurityDescriptor = NULL;
172 attr.SecurityQualityOfService = NULL;
174 status = NtOpenFile( handle, 0, &attr, &io, 0,
175 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
176 RtlFreeUnicodeString( &nt_name );
177 if (status != STATUS_SUCCESS)
179 SetLastError( RtlNtStatusToDosError(status) );
185 /* query the type of a drive from the mount manager */
186 static DWORD get_mountmgr_drive_type( LPCWSTR root )
189 struct mountmgr_unix_drive data;
191 memset( &data, 0, sizeof(data) );
192 if (root) data.letter = root[0];
195 WCHAR curdir[MAX_PATH];
196 GetCurrentDirectoryW( MAX_PATH, curdir );
197 if (curdir[1] != ':' || curdir[2] != '\\') return DRIVE_UNKNOWN;
198 data.letter = curdir[0];
201 mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, GENERIC_READ,
202 FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
203 if (mgr == INVALID_HANDLE_VALUE) return DRIVE_UNKNOWN;
205 if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE, &data, sizeof(data), &data,
206 sizeof(data), NULL, NULL ) && GetLastError() != ERROR_MORE_DATA)
207 data.type = DRIVE_UNKNOWN;
213 /* get the label by reading it from a file at the root of the filesystem */
214 static void get_filesystem_label( const UNICODE_STRING *device, WCHAR *label, DWORD len )
216 static const WCHAR labelW[] = {'.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
220 OBJECT_ATTRIBUTES attr;
224 attr.Length = sizeof(attr);
225 attr.RootDirectory = 0;
226 attr.Attributes = OBJ_CASE_INSENSITIVE;
227 attr.ObjectName = &name;
228 attr.SecurityDescriptor = NULL;
229 attr.SecurityQualityOfService = NULL;
231 name.MaximumLength = device->Length + sizeof(labelW);
232 name.Length = name.MaximumLength - sizeof(WCHAR);
233 if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return;
235 memcpy( name.Buffer, device->Buffer, device->Length );
236 memcpy( name.Buffer + device->Length / sizeof(WCHAR), labelW, sizeof(labelW) );
237 if (!NtOpenFile( &handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
238 FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
240 char buffer[256], *p;
243 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
244 CloseHandle( handle );
246 while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
248 if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, len ))
251 RtlFreeUnicodeString( &name );
254 /* get the serial number by reading it from a file at the root of the filesystem */
255 static DWORD get_filesystem_serial( const UNICODE_STRING *device )
257 static const WCHAR serialW[] = {'.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
261 OBJECT_ATTRIBUTES attr;
264 attr.Length = sizeof(attr);
265 attr.RootDirectory = 0;
266 attr.Attributes = OBJ_CASE_INSENSITIVE;
267 attr.ObjectName = &name;
268 attr.SecurityDescriptor = NULL;
269 attr.SecurityQualityOfService = NULL;
271 name.MaximumLength = device->Length + sizeof(serialW);
272 name.Length = name.MaximumLength - sizeof(WCHAR);
273 if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return 0;
275 memcpy( name.Buffer, device->Buffer, device->Length );
276 memcpy( name.Buffer + device->Length / sizeof(WCHAR), serialW, sizeof(serialW) );
277 if (!NtOpenFile( &handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
278 FILE_SYNCHRONOUS_IO_NONALERT ))
283 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
284 CloseHandle( handle );
286 ret = strtoul( buffer, NULL, 16 );
288 RtlFreeUnicodeString( &name );
293 /******************************************************************
294 * VOLUME_FindCdRomDataBestVoldesc
296 static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
298 BYTE cur_vd_type, max_vd_type = 0;
300 DWORD size, offs, best_offs = 0, extra_offs = 0;
302 for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
304 /* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
305 * the volume label is displaced forward by 8
307 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break;
308 if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break;
309 if (size != sizeof(buffer)) break;
310 /* check for non-ISO9660 signature */
311 if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8;
312 cur_vd_type = buffer[extra_offs];
313 if (cur_vd_type == 0xff) /* voldesc set terminator */
315 if (cur_vd_type > max_vd_type)
317 max_vd_type = cur_vd_type;
318 best_offs = offs + extra_offs;
325 /***********************************************************************
326 * VOLUME_ReadFATSuperblock
328 static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff )
332 /* try a fixed disk, with a FAT partition */
333 if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 ||
334 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ))
336 if (GetLastError() == ERROR_BAD_DEV_TYPE) return FS_UNKNOWN; /* not a real device */
340 if (size < SUPERBLOCK_SIZE) return FS_UNKNOWN;
342 /* FIXME: do really all FAT have their name beginning with
343 * "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
345 if (!memcmp(buff+0x36, "FAT", 3) || !memcmp(buff+0x52, "FAT", 3))
347 /* guess which type of FAT we have */
349 unsigned int sectors,
358 sect_per_fat = GETWORD(buff, 0x16);
359 if (!sect_per_fat) sect_per_fat = GETLONG(buff, 0x24);
360 total_sectors = GETWORD(buff, 0x13);
362 total_sectors = GETLONG(buff, 0x20);
363 num_boot_sectors = GETWORD(buff, 0x0e);
364 num_fats = buff[0x10];
365 num_root_dir_ents = GETWORD(buff, 0x11);
366 bytes_per_sector = GETWORD(buff, 0x0b);
367 sectors_per_cluster = buff[0x0d];
368 /* check if the parameters are reasonable and will not cause
369 * arithmetic errors in the calculation */
370 reasonable = num_boot_sectors < total_sectors &&
372 bytes_per_sector >= 512 && bytes_per_sector % 512 == 0 &&
373 sectors_per_cluster >= 1;
374 if (!reasonable) return FS_UNKNOWN;
375 sectors = total_sectors - num_boot_sectors - num_fats * sect_per_fat -
376 (num_root_dir_ents * 32 + bytes_per_sector - 1) / bytes_per_sector;
377 nclust = sectors / sectors_per_cluster;
378 if ((buff[0x42] == 0x28 || buff[0x42] == 0x29) &&
379 !memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
382 if ((buff[0x26] == 0x28 || buff[0x26] == 0x29) &&
383 !memcmp(buff+0x36, "FAT", 3))
391 /***********************************************************************
394 static BOOL VOLUME_ReadCDBlock( HANDLE handle, BYTE *buff, INT offs )
396 DWORD size, whence = offs >= 0 ? FILE_BEGIN : FILE_END;
398 if (SetFilePointer( handle, offs, NULL, whence ) != offs ||
399 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
400 size != SUPERBLOCK_SIZE)
407 /***********************************************************************
408 * VOLUME_ReadCDSuperblock
410 static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
415 /* Check UDF first as UDF and ISO9660 structures can coexist on the same medium
416 * Starting from sector 16, we may find :
417 * - a CD-ROM Volume Descriptor Set (ISO9660) containing one or more Volume Descriptors
418 * - an Extented Area (UDF) -- [E] 2/8.3.1 and [U] 2.1.7
419 * There is no explicit end so read 16 sectors and then give up */
420 for( i=16; i<16+16; i++)
422 if (!VOLUME_ReadCDBlock(handle, buff, i*BLOCK_SIZE))
425 /* We are supposed to check "BEA01", "NSR0x" and "TEA01" IDs + verify tag checksum
426 * but we assume the volume is well-formatted */
427 if (!memcmp(&buff[1], "BEA01", 5)) return FS_UDF;
430 offs = VOLUME_FindCdRomDataBestVoldesc( handle );
431 if (!offs) return FS_UNKNOWN;
433 if (!VOLUME_ReadCDBlock(handle, buff, offs))
436 /* check for the iso9660 identifier */
437 if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
442 /**************************************************************************
444 * Find the Primary Volume Descriptor
446 static BOOL UDF_Find_PVD( HANDLE handle, BYTE pvd[] )
450 INT locations[] = { 256, -1, -257, 512 };
452 for(i=0; i<sizeof(locations)/sizeof(locations[0]); i++)
454 if (!VOLUME_ReadCDBlock(handle, pvd, locations[i]*BLOCK_SIZE))
457 /* Tag Identifier of Anchor Volume Descriptor Pointer is 2 -- [E] 3/10.2.1 */
458 if (pvd[0]==2 && pvd[1]==0)
460 /* Tag location (Uint32) at offset 12, little-endian */
461 offset = pvd[20 + 0];
462 offset |= pvd[20 + 1] << 8;
463 offset |= pvd[20 + 2] << 16;
464 offset |= pvd[20 + 3] << 24;
465 offset *= BLOCK_SIZE;
467 if (!VOLUME_ReadCDBlock(handle, pvd, offset))
470 /* Check for the Primary Volume Descriptor Tag Id -- [E] 3/10.1.1 */
471 if (pvd[0]!=1 || pvd[1]!=0)
474 /* 8 or 16 bits per character -- [U] 2.1.1 */
475 if (!(pvd[24]==8 || pvd[24]==16))
486 /**************************************************************************
487 * VOLUME_GetSuperblockLabel
489 static void VOLUME_GetSuperblockLabel( const UNICODE_STRING *device, HANDLE handle,
490 enum fs_type type, const BYTE *superblock,
491 WCHAR *label, DWORD len )
493 const BYTE *label_ptr = NULL;
502 get_filesystem_label( device, label, len );
505 label_ptr = superblock + 0x2b;
509 label_ptr = superblock + 0x47;
514 BYTE ver = superblock[0x5a];
516 if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
517 ((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
518 { /* yippee, unicode */
521 if (len > 17) len = 17;
522 for (i = 0; i < len-1; i++)
523 label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
525 while (i && label[i-1] == ' ') label[--i] = 0;
528 label_ptr = superblock + 40;
534 BYTE pvd[BLOCK_SIZE];
536 if(!UDF_Find_PVD(handle, pvd))
542 /* [E] 3/10.1.4 and [U] 2.1.1 */
545 label_ptr = pvd + 24 + 1;
546 label_len = pvd[24+32-1];
553 label_len = 1 + pvd[24+32-1];
554 for(i=0; i<label_len && i<len; i+=2)
555 label[i/2] = (pvd[24+1 +i] << 8) | pvd[24+1 +i+1];
556 label[label_len] = 0;
561 if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
562 &label_len, (LPCSTR)label_ptr, label_len );
563 label_len /= sizeof(WCHAR);
564 label[label_len] = 0;
565 while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
569 /**************************************************************************
570 * VOLUME_GetSuperblockSerial
572 static DWORD VOLUME_GetSuperblockSerial( const UNICODE_STRING *device, HANDLE handle,
573 enum fs_type type, const BYTE *superblock )
575 BYTE block[BLOCK_SIZE];
582 return get_filesystem_serial( device );
584 return GETLONG( superblock, 0x27 );
586 return GETLONG( superblock, 0x33 );
589 if (!VOLUME_ReadCDBlock(handle, block, 257*BLOCK_SIZE))
599 sum[0] = sum[1] = sum[2] = sum[3] = 0;
600 for (i = 0; i < 2048; i += 4)
602 /* DON'T optimize this into DWORD !! (breaks overflow) */
603 sum[0] += superblock[i+0];
604 sum[1] += superblock[i+1];
605 sum[2] += superblock[i+2];
606 sum[3] += superblock[i+3];
609 * OK, another braindead one... argh. Just believe it.
610 * Me$$ysoft chose to reverse the serial number in NT4/W2K.
611 * It's true and nobody will ever be able to change it.
613 if ((GetVersion() & 0x80000000) || type == FS_UDF)
614 return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
616 return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
623 /**************************************************************************
624 * VOLUME_GetAudioCDSerial
626 static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc )
631 for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
632 serial += ((toc->TrackData[i].Address[1] << 16) |
633 (toc->TrackData[i].Address[2] << 8) |
634 toc->TrackData[i].Address[3]);
637 * dwStart, dwEnd collect the beginning and end of the disc respectively, in
639 * There it is collected for correcting the serial when there are less than
642 if (toc->LastTrack - toc->FirstTrack + 1 < 3)
644 DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
645 DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
646 serial += dwEnd - dwStart;
652 /***********************************************************************
653 * GetVolumeInformationW (KERNEL32.@)
655 BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
656 DWORD *serial, DWORD *filename_len, DWORD *flags,
657 LPWSTR fsname, DWORD fsname_len )
659 static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0};
660 static const WCHAR fatW[] = {'F','A','T',0};
661 static const WCHAR fat32W[] = {'F','A','T','3','2',0};
662 static const WCHAR ntfsW[] = {'N','T','F','S',0};
663 static const WCHAR cdfsW[] = {'C','D','F','S',0};
664 static const WCHAR udfW[] = {'U','D','F',0};
665 static const WCHAR default_rootW[] = {'\\',0};
669 UNICODE_STRING nt_name;
671 OBJECT_ATTRIBUTES attr;
672 FILE_FS_DEVICE_INFORMATION info;
674 enum fs_type type = FS_UNKNOWN;
677 if (!root) root = default_rootW;
678 if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
680 SetLastError( ERROR_PATH_NOT_FOUND );
683 /* there must be exactly one backslash in the name, at the end */
684 p = memchrW( nt_name.Buffer + 4, '\\', (nt_name.Length - 4) / sizeof(WCHAR) );
685 if (p != nt_name.Buffer + nt_name.Length / sizeof(WCHAR) - 1)
687 /* check if root contains an explicit subdir */
688 if (root[0] && root[1] == ':') root += 2;
689 while (*root == '\\') root++;
690 if (strchrW( root, '\\' ))
691 SetLastError( ERROR_DIR_NOT_ROOT );
693 SetLastError( ERROR_INVALID_NAME );
697 /* try to open the device */
699 attr.Length = sizeof(attr);
700 attr.RootDirectory = 0;
701 attr.Attributes = OBJ_CASE_INSENSITIVE;
702 attr.ObjectName = &nt_name;
703 attr.SecurityDescriptor = NULL;
704 attr.SecurityQualityOfService = NULL;
706 nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
707 status = NtOpenFile( &handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ | FILE_SHARE_WRITE,
708 FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
709 nt_name.Length += sizeof(WCHAR);
711 if (status == STATUS_SUCCESS)
713 BYTE superblock[SUPERBLOCK_SIZE];
717 /* check for audio CD */
718 /* FIXME: we only check the first track for now */
719 if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
721 if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
723 TRACE( "%s: found audio CD\n", debugstr_w(nt_name.Buffer) );
724 if (label) lstrcpynW( label, audiocdW, label_len );
725 if (serial) *serial = VOLUME_GetAudioCDSerial( &toc );
726 CloseHandle( handle );
730 type = VOLUME_ReadCDSuperblock( handle, superblock );
734 type = VOLUME_ReadFATSuperblock( handle, superblock );
735 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
737 TRACE( "%s: found fs type %d\n", debugstr_w(nt_name.Buffer), type );
738 if (type == FS_ERROR)
740 CloseHandle( handle );
744 if (label && label_len) VOLUME_GetSuperblockLabel( &nt_name, handle, type, superblock, label, label_len );
745 if (serial) *serial = VOLUME_GetSuperblockSerial( &nt_name, handle, type, superblock );
746 CloseHandle( handle );
749 else TRACE( "cannot open device %s: %x\n", debugstr_w(nt_name.Buffer), status );
751 /* we couldn't open the device, fallback to default strategy */
753 status = NtOpenFile( &handle, 0, &attr, &io, 0, FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
754 if (status != STATUS_SUCCESS)
756 SetLastError( RtlNtStatusToDosError(status) );
759 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
761 if (status != STATUS_SUCCESS)
763 SetLastError( RtlNtStatusToDosError(status) );
766 if (info.DeviceType == FILE_DEVICE_CD_ROM_FILE_SYSTEM) type = FS_ISO9660;
768 if (label && label_len) get_filesystem_label( &nt_name, label, label_len );
769 if (serial) *serial = get_filesystem_serial( &nt_name );
771 fill_fs_info: /* now fill in the information that depends on the file system type */
776 if (fsname) lstrcpynW( fsname, cdfsW, fsname_len );
777 if (filename_len) *filename_len = 221;
778 if (flags) *flags = FILE_READ_ONLY_VOLUME;
781 if (fsname) lstrcpynW( fsname, udfW, fsname_len );
782 if (filename_len) *filename_len = 255;
784 *flags = FILE_READ_ONLY_VOLUME | FILE_UNICODE_ON_DISK | FILE_CASE_SENSITIVE_SEARCH;
787 if (fsname) lstrcpynW( fsname, fatW, fsname_len );
789 if (type == FS_FAT32 && fsname) lstrcpynW( fsname, fat32W, fsname_len );
790 if (filename_len) *filename_len = 255;
791 if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
794 if (fsname) lstrcpynW( fsname, ntfsW, fsname_len );
795 if (filename_len) *filename_len = 255;
796 if (flags) *flags = FILE_CASE_PRESERVED_NAMES;
802 RtlFreeUnicodeString( &nt_name );
807 /***********************************************************************
808 * GetVolumeInformationA (KERNEL32.@)
810 BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
811 DWORD label_len, DWORD *serial,
812 DWORD *filename_len, DWORD *flags,
813 LPSTR fsname, DWORD fsname_len )
816 LPWSTR labelW, fsnameW;
819 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
821 labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
822 fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
824 if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
825 filename_len, flags, fsnameW, fsname_len)))
827 if (label) FILE_name_WtoA( labelW, -1, label, label_len );
828 if (fsname) FILE_name_WtoA( fsnameW, -1, fsname, fsname_len );
831 HeapFree( GetProcessHeap(), 0, labelW );
832 HeapFree( GetProcessHeap(), 0, fsnameW );
838 /***********************************************************************
839 * SetVolumeLabelW (KERNEL32.@)
841 BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
843 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
845 enum fs_type type = FS_UNKNOWN;
849 WCHAR path[MAX_PATH];
850 GetCurrentDirectoryW( MAX_PATH, path );
855 if (!root[0] || root[1] != ':')
857 SetLastError( ERROR_INVALID_NAME );
863 /* try to open the device */
865 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
866 NULL, OPEN_EXISTING, 0, 0 );
867 if (handle != INVALID_HANDLE_VALUE)
869 BYTE superblock[SUPERBLOCK_SIZE];
871 type = VOLUME_ReadFATSuperblock( handle, superblock );
872 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
873 CloseHandle( handle );
874 if (type != FS_UNKNOWN)
876 /* we can't set the label on FAT or CDROM file systems */
877 TRACE( "cannot set label on device %s type %d\n", debugstr_w(device), type );
878 SetLastError( ERROR_ACCESS_DENIED );
884 TRACE( "cannot open device %s: err %d\n", debugstr_w(device), GetLastError() );
885 if (GetLastError() == ERROR_ACCESS_DENIED) return FALSE;
888 /* we couldn't open the device, fallback to default strategy */
890 switch(GetDriveTypeW( root ))
893 case DRIVE_NO_ROOT_DIR:
894 SetLastError( ERROR_NOT_READY );
896 case DRIVE_REMOVABLE:
899 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
901 labelW[0] = device[4];
903 if (!label[0]) /* delete label file when setting an empty label */
904 return DeleteFileW( labelW ) || GetLastError() == ERROR_FILE_NOT_FOUND;
906 handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
907 CREATE_ALWAYS, 0, 0 );
908 if (handle != INVALID_HANDLE_VALUE)
913 if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer)-1, NULL, NULL ))
914 buffer[sizeof(buffer)-2] = 0;
915 strcat( buffer, "\n" );
916 WriteFile( handle, buffer, strlen(buffer), &size, NULL );
917 CloseHandle( handle );
925 SetLastError( ERROR_ACCESS_DENIED );
931 /***********************************************************************
932 * SetVolumeLabelA (KERNEL32.@)
934 BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
936 WCHAR *rootW = NULL, *volnameW = NULL;
939 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
940 if (volname && !(volnameW = FILE_name_AtoW( volname, TRUE ))) return FALSE;
941 ret = SetVolumeLabelW( rootW, volnameW );
942 HeapFree( GetProcessHeap(), 0, volnameW );
947 /***********************************************************************
948 * GetVolumeNameForVolumeMountPointA (KERNEL32.@)
950 BOOL WINAPI GetVolumeNameForVolumeMountPointA( LPCSTR path, LPSTR volume, DWORD size )
953 WCHAR volumeW[50], *pathW = NULL;
954 DWORD len = min( sizeof(volumeW) / sizeof(WCHAR), size );
956 TRACE("(%s, %p, %x)\n", debugstr_a(path), volume, size);
958 if (!path || !(pathW = FILE_name_AtoW( path, TRUE )))
961 if ((ret = GetVolumeNameForVolumeMountPointW( pathW, volumeW, len )))
962 FILE_name_WtoA( volumeW, -1, volume, len );
964 HeapFree( GetProcessHeap(), 0, pathW );
968 /***********************************************************************
969 * GetVolumeNameForVolumeMountPointW (KERNEL32.@)
971 BOOL WINAPI GetVolumeNameForVolumeMountPointW( LPCWSTR path, LPWSTR volume, DWORD size )
973 static const WCHAR prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
974 static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{',0};
975 static const WCHAR trailingW[] = {'\\',0};
977 MOUNTMGR_MOUNT_POINT *input = NULL, *o1;
978 MOUNTMGR_MOUNT_POINTS *output = NULL;
981 DWORD i, i_size = 1024, o_size = 1024;
982 WCHAR *nonpersist_name;
983 WCHAR symlink_name[MAX_PATH];
985 HANDLE mgr = INVALID_HANDLE_VALUE;
988 TRACE("(%s, %p, %x)\n", debugstr_w(path), volume, size);
989 if (path[lstrlenW(path)-1] != '\\')
991 SetLastError( ERROR_INVALID_NAME );
997 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1000 /* if length of input is > 3 then it must be a mounted folder */
1001 if (lstrlenW(path) > 3)
1003 FIXME("Mounted Folders are not yet supported\n");
1004 SetLastError( ERROR_NOT_A_REPARSE_POINT );
1008 mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ,
1009 NULL, OPEN_EXISTING, 0, 0 );
1010 if (mgr == INVALID_HANDLE_VALUE) return FALSE;
1012 if (!(input = HeapAlloc( GetProcessHeap(), 0, i_size )))
1014 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1018 if (!(output = HeapAlloc( GetProcessHeap(), 0, o_size )))
1020 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1024 /* construct the symlink name as "\DosDevices\C:" */
1025 lstrcpyW( symlink_name, prefixW );
1026 lstrcatW( symlink_name, path );
1027 symlink_name[lstrlenW(symlink_name)-1] = 0;
1029 /* Take the mount point and get the "nonpersistent name" */
1030 /* We will then take that and get the volume name */
1031 nonpersist_name = (WCHAR *)(input + 1);
1032 status = read_nt_symlink( symlink_name, nonpersist_name, i_size - sizeof(*input) );
1033 TRACE("read_nt_symlink got stat=%x, for %s, got <%s>\n", status,
1034 debugstr_w(symlink_name), debugstr_w(nonpersist_name));
1035 if (status != STATUS_SUCCESS)
1037 SetLastError( ERROR_FILE_NOT_FOUND );
1041 /* Now take the "nonpersistent name" and ask the mountmgr */
1042 /* to give us all the mount points. One of them will be */
1043 /* the volume name (format of \??\Volume{). */
1044 memset( input, 0, sizeof(*input) ); /* clear all input parameters */
1045 input->DeviceNameOffset = sizeof(*input);
1046 input->DeviceNameLength = lstrlenW( nonpersist_name) * sizeof(WCHAR);
1047 i_size = input->DeviceNameOffset + input->DeviceNameLength;
1049 output->Size = o_size;
1051 /* now get the true volume name from the mountmgr */
1052 if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, i_size,
1053 output, o_size, NULL, NULL ))
1056 /* Verify and return the data, note string is not null terminated */
1057 TRACE("found %d matching mount points\n", output->NumberOfMountPoints);
1058 if (output->NumberOfMountPoints < 1)
1060 SetLastError( ERROR_NO_VOLUME_ID );
1063 o1 = &output->MountPoints[0];
1065 /* look for the volume name in returned values */
1066 for(i=0;i<output->NumberOfMountPoints;i++)
1068 p = (WCHAR*)((char *)output + o1->SymbolicLinkNameOffset);
1069 r = (char *)output + o1->UniqueIdOffset;
1070 TRACE("found symlink=%s, unique=%s, devname=%s\n",
1071 debugstr_wn(p, o1->SymbolicLinkNameLength/sizeof(WCHAR)),
1072 debugstr_an(r, o1->UniqueIdLength),
1073 debugstr_wn((WCHAR*)((char *)output + o1->DeviceNameOffset),
1074 o1->DeviceNameLength/sizeof(WCHAR)));
1076 if (!strncmpW( p, volumeW, (sizeof(volumeW)-1)/sizeof(WCHAR) ))
1078 /* is there space in the return variable ?? */
1079 if ((o1->SymbolicLinkNameLength/sizeof(WCHAR))+2 > size)
1081 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1084 memcpy( volume, p, o1->SymbolicLinkNameLength );
1085 volume[o1->SymbolicLinkNameLength / sizeof(WCHAR)] = 0;
1086 lstrcatW( volume, trailingW );
1087 /* change second char from '?' to '\' */
1096 HeapFree( GetProcessHeap(), 0, input );
1097 HeapFree( GetProcessHeap(), 0, output );
1102 /***********************************************************************
1103 * DefineDosDeviceW (KERNEL32.@)
1105 BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
1109 char *path = NULL, *target, *p;
1111 TRACE("%x, %s, %s\n", flags, debugstr_w(devname), debugstr_w(targetpath));
1113 if (!(flags & DDD_REMOVE_DEFINITION))
1115 if (!(flags & DDD_RAW_TARGET_PATH))
1117 FIXME( "(0x%08x,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n",
1118 flags, debugstr_w(devname), debugstr_w(targetpath) );
1119 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1123 len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL );
1124 if ((target = HeapAlloc( GetProcessHeap(), 0, len )))
1126 WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL );
1127 for (p = target; *p; p++) if (*p == '\\') *p = '/';
1131 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1137 /* first check for a DOS device */
1139 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1143 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1144 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1145 path = get_dos_device_path( name );
1147 else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */
1149 path = get_dos_device_path( devname );
1151 else SetLastError( ERROR_FILE_NOT_FOUND );
1157 TRACE( "creating symlink %s -> %s\n", path, target );
1159 if (!symlink( target, path )) ret = TRUE;
1160 else FILE_SetDosError();
1164 TRACE( "removing symlink %s\n", path );
1165 if (!unlink( path )) ret = TRUE;
1166 else FILE_SetDosError();
1168 HeapFree( GetProcessHeap(), 0, path );
1170 HeapFree( GetProcessHeap(), 0, target );
1175 /***********************************************************************
1176 * DefineDosDeviceA (KERNEL32.@)
1178 BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath)
1180 WCHAR *devW, *targetW = NULL;
1183 if (!(devW = FILE_name_AtoW( devname, FALSE ))) return FALSE;
1184 if (targetpath && !(targetW = FILE_name_AtoW( targetpath, TRUE ))) return FALSE;
1185 ret = DefineDosDeviceW(flags, devW, targetW);
1186 HeapFree( GetProcessHeap(), 0, targetW );
1191 /***********************************************************************
1192 * QueryDosDeviceW (KERNEL32.@)
1194 * returns array of strings terminated by \0, terminated by \0
1196 DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
1198 static const WCHAR auxW[] = {'A','U','X',0};
1199 static const WCHAR nulW[] = {'N','U','L',0};
1200 static const WCHAR prnW[] = {'P','R','N',0};
1201 static const WCHAR comW[] = {'C','O','M',0};
1202 static const WCHAR lptW[] = {'L','P','T',0};
1203 static const WCHAR com0W[] = {'\\','?','?','\\','C','O','M','0',0};
1204 static const WCHAR com1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','1',0,0};
1205 static const WCHAR lpt1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','1',0,0};
1206 static const WCHAR dosdevW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
1208 UNICODE_STRING nt_name;
1209 ANSI_STRING unix_name;
1210 WCHAR nt_buffer[10];
1215 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1223 DWORD dosdev, ret = 0;
1225 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1227 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1228 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1234 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, sizeof(dosdevW) + strlenW(devname)*sizeof(WCHAR) )))
1236 SetLastError( ERROR_OUTOFMEMORY );
1239 memcpy( buffer, dosdevW, sizeof(dosdevW) );
1240 strcatW( buffer, devname );
1241 status = read_nt_symlink( buffer, target, bufsize );
1242 HeapFree( GetProcessHeap(), 0, buffer );
1245 SetLastError( RtlNtStatusToDosError(status) );
1248 ret = strlenW( target ) + 1;
1252 /* FIXME: should read NT symlink for all devices */
1254 if (!(path = get_dos_device_path( name ))) return 0;
1255 link = read_symlink( path );
1256 HeapFree( GetProcessHeap(), 0, path );
1260 ret = MultiByteToWideChar( CP_UNIXCP, 0, link, -1, target, bufsize );
1261 HeapFree( GetProcessHeap(), 0, link );
1263 else if (dosdev) /* look for device defaults */
1265 if (!strcmpiW( name, auxW ))
1267 if (bufsize >= sizeof(com1W)/sizeof(WCHAR))
1269 memcpy( target, com1W, sizeof(com1W) );
1270 ret = sizeof(com1W)/sizeof(WCHAR);
1272 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1275 if (!strcmpiW( name, prnW ))
1277 if (bufsize >= sizeof(lpt1W)/sizeof(WCHAR))
1279 memcpy( target, lpt1W, sizeof(lpt1W) );
1280 ret = sizeof(lpt1W)/sizeof(WCHAR);
1282 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1286 nt_buffer[0] = '\\';
1289 nt_buffer[3] = '\\';
1290 strcpyW( nt_buffer + 4, name );
1291 RtlInitUnicodeString( &nt_name, nt_buffer );
1292 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE );
1293 if (status) SetLastError( RtlNtStatusToDosError(status) );
1296 ret = MultiByteToWideChar( CP_UNIXCP, 0, unix_name.Buffer, -1, target, bufsize );
1297 RtlFreeAnsiString( &unix_name );
1303 if (ret < bufsize) target[ret++] = 0; /* add an extra null */
1304 for (p = target; *p; p++) if (*p == '/') *p = '\\';
1309 else /* return a list of all devices */
1311 OBJECT_ATTRIBUTES attr;
1316 if (bufsize <= (sizeof(auxW)+sizeof(nulW)+sizeof(prnW))/sizeof(WCHAR))
1318 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1322 /* FIXME: these should be NT symlinks too */
1324 memcpy( p, auxW, sizeof(auxW) );
1325 p += sizeof(auxW) / sizeof(WCHAR);
1326 memcpy( p, nulW, sizeof(nulW) );
1327 p += sizeof(nulW) / sizeof(WCHAR);
1328 memcpy( p, prnW, sizeof(prnW) );
1329 p += sizeof(prnW) / sizeof(WCHAR);
1331 strcpyW( nt_buffer, com0W );
1332 RtlInitUnicodeString( &nt_name, nt_buffer );
1334 for (i = 1; i <= 9; i++)
1336 nt_buffer[7] = '0' + i;
1337 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1339 RtlFreeAnsiString( &unix_name );
1340 if (p + 5 >= target + bufsize)
1342 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1351 strcpyW( nt_buffer + 4, lptW );
1352 for (i = 1; i <= 9; i++)
1354 nt_buffer[7] = '0' + i;
1355 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1357 RtlFreeAnsiString( &unix_name );
1358 if (p + 5 >= target + bufsize)
1360 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1370 RtlInitUnicodeString( &nt_name, dosdevW );
1371 nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
1372 attr.Length = sizeof(attr);
1373 attr.RootDirectory = 0;
1374 attr.ObjectName = &nt_name;
1375 attr.Attributes = OBJ_CASE_INSENSITIVE;
1376 attr.SecurityDescriptor = NULL;
1377 attr.SecurityQualityOfService = NULL;
1378 status = NtOpenDirectoryObject( &handle, FILE_LIST_DIRECTORY, &attr );
1382 DIRECTORY_BASIC_INFORMATION *info = (DIRECTORY_BASIC_INFORMATION *)data;
1385 while (!NtQueryDirectoryObject( handle, info, sizeof(data), 1, 0, &ctx, &len ))
1387 if (p + info->ObjectName.Length/sizeof(WCHAR) + 1 >= target + bufsize)
1389 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1393 memcpy( p, info->ObjectName.Buffer, info->ObjectName.Length );
1394 p += info->ObjectName.Length/sizeof(WCHAR);
1400 *p++ = 0; /* terminating null */
1406 /***********************************************************************
1407 * QueryDosDeviceA (KERNEL32.@)
1409 * returns array of strings terminated by \0, terminated by \0
1411 DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize )
1413 DWORD ret = 0, retW;
1414 WCHAR *devnameW = NULL;
1417 if (devname && !(devnameW = FILE_name_AtoW( devname, FALSE ))) return 0;
1419 targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) );
1422 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1426 retW = QueryDosDeviceW(devnameW, targetW, bufsize);
1428 ret = FILE_name_WtoA( targetW, retW, target, bufsize );
1430 HeapFree(GetProcessHeap(), 0, targetW);
1435 /***********************************************************************
1436 * GetLogicalDrives (KERNEL32.@)
1438 DWORD WINAPI GetLogicalDrives(void)
1440 const char *config_dir = wine_get_config_dir();
1446 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/a:") )))
1448 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1451 strcpy( buffer, config_dir );
1452 strcat( buffer, "/dosdevices/a:" );
1453 dev = buffer + strlen(buffer) - 2;
1455 for (i = 0; i < 26; i++)
1458 if (!stat( buffer, &st )) ret |= (1 << i);
1460 HeapFree( GetProcessHeap(), 0, buffer );
1465 /***********************************************************************
1466 * GetLogicalDriveStringsA (KERNEL32.@)
1468 UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
1470 DWORD drives = GetLogicalDrives();
1473 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1474 if ((count * 4) + 1 > len) return count * 4 + 1;
1476 for (drive = 0; drive < 26; drive++)
1478 if (drives & (1 << drive))
1480 *buffer++ = 'A' + drive;
1491 /***********************************************************************
1492 * GetLogicalDriveStringsW (KERNEL32.@)
1494 UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
1496 DWORD drives = GetLogicalDrives();
1499 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1500 if ((count * 4) + 1 > len) return count * 4 + 1;
1502 for (drive = 0; drive < 26; drive++)
1504 if (drives & (1 << drive))
1506 *buffer++ = 'A' + drive;
1517 /***********************************************************************
1518 * GetDriveTypeW (KERNEL32.@)
1520 * Returns the type of the disk drive specified. If root is NULL the
1521 * root of the current directory is used.
1525 * Type of drive (from Win32 SDK):
1527 * DRIVE_UNKNOWN unable to find out anything about the drive
1528 * DRIVE_NO_ROOT_DIR nonexistent root dir
1529 * DRIVE_REMOVABLE the disk can be removed from the machine
1530 * DRIVE_FIXED the disk cannot be removed from the machine
1531 * DRIVE_REMOTE network disk
1532 * DRIVE_CDROM CDROM drive
1533 * DRIVE_RAMDISK virtual disk in RAM
1535 UINT WINAPI GetDriveTypeW(LPCWSTR root) /* [in] String describing drive */
1537 FILE_FS_DEVICE_INFORMATION info;
1543 if (!open_device_root( root, &handle )) return DRIVE_NO_ROOT_DIR;
1545 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
1547 if (status != STATUS_SUCCESS)
1549 SetLastError( RtlNtStatusToDosError(status) );
1550 ret = DRIVE_UNKNOWN;
1554 switch (info.DeviceType)
1556 case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
1557 case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
1558 case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
1559 case FILE_DEVICE_DISK_FILE_SYSTEM:
1560 if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
1561 else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
1562 else if ((ret = get_mountmgr_drive_type( root )) == DRIVE_UNKNOWN) ret = DRIVE_FIXED;
1565 ret = DRIVE_UNKNOWN;
1569 TRACE( "%s -> %d\n", debugstr_w(root), ret );
1574 /***********************************************************************
1575 * GetDriveTypeA (KERNEL32.@)
1577 * See GetDriveTypeW.
1579 UINT WINAPI GetDriveTypeA( LPCSTR root )
1581 WCHAR *rootW = NULL;
1583 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
1584 return GetDriveTypeW( rootW );
1588 /***********************************************************************
1589 * GetDiskFreeSpaceExW (KERNEL32.@)
1591 * This function is used to acquire the size of the available and
1592 * total space on a logical volume.
1596 * Zero on failure, nonzero upon success. Use GetLastError to obtain
1597 * detailed error information.
1600 BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
1601 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1603 FILE_FS_SIZE_INFORMATION info;
1609 TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
1611 if (!open_device_root( root, &handle )) return FALSE;
1613 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1615 if (status != STATUS_SUCCESS)
1617 SetLastError( RtlNtStatusToDosError(status) );
1621 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1622 if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
1623 if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1624 /* FIXME: this one should take quotas into account */
1625 if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1630 /***********************************************************************
1631 * GetDiskFreeSpaceExA (KERNEL32.@)
1633 * See GetDiskFreeSpaceExW.
1635 BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
1636 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1638 WCHAR *rootW = NULL;
1640 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1641 return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
1645 /***********************************************************************
1646 * GetDiskFreeSpaceW (KERNEL32.@)
1648 BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
1649 LPDWORD sector_bytes, LPDWORD free_clusters,
1650 LPDWORD total_clusters )
1652 FILE_FS_SIZE_INFORMATION info;
1658 TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
1659 cluster_sectors, sector_bytes, free_clusters, total_clusters );
1661 if (!open_device_root( root, &handle )) return FALSE;
1663 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1665 if (status != STATUS_SUCCESS)
1667 SetLastError( RtlNtStatusToDosError(status) );
1671 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1673 if( GetVersion() & 0x80000000) { /* win3.x, 9x, ME */
1674 /* cap the size and available at 2GB as per specs */
1675 if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff) {
1676 info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
1677 if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
1678 info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
1680 /* nr. of clusters is always <= 65335 */
1681 while( info.TotalAllocationUnits.QuadPart > 65535 ) {
1682 info.TotalAllocationUnits.QuadPart /= 2;
1683 info.AvailableAllocationUnits.QuadPart /= 2;
1684 info.SectorsPerAllocationUnit *= 2;
1688 if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
1689 if (sector_bytes) *sector_bytes = info.BytesPerSector;
1690 if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
1691 if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
1696 /***********************************************************************
1697 * GetDiskFreeSpaceA (KERNEL32.@)
1699 BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
1700 LPDWORD sector_bytes, LPDWORD free_clusters,
1701 LPDWORD total_clusters )
1703 WCHAR *rootW = NULL;
1705 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1706 return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );
1709 /***********************************************************************
1710 * GetVolumePathNameA (KERNEL32.@)
1712 BOOL WINAPI GetVolumePathNameA(LPCSTR filename, LPSTR volumepathname, DWORD buflen)
1715 WCHAR *filenameW = NULL, *volumeW;
1717 FIXME("(%s, %p, %d), stub!\n", debugstr_a(filename), volumepathname, buflen);
1719 if (filename && !(filenameW = FILE_name_AtoW( filename, FALSE ))) return FALSE;
1720 if (!(volumeW = HeapAlloc( GetProcessHeap(), 0, buflen * sizeof(WCHAR) ))) return FALSE;
1722 if ((ret = GetVolumePathNameW( filenameW, volumeW, buflen )))
1723 FILE_name_WtoA( volumeW, -1, volumepathname, buflen );
1725 HeapFree( GetProcessHeap(), 0, volumeW );
1729 /***********************************************************************
1730 * GetVolumePathNameW (KERNEL32.@)
1732 BOOL WINAPI GetVolumePathNameW(LPCWSTR filename, LPWSTR volumepathname, DWORD buflen)
1734 const WCHAR *p = filename;
1736 FIXME("(%s, %p, %d), stub!\n", debugstr_w(filename), volumepathname, buflen);
1738 if (p && tolowerW(p[0]) >= 'a' && tolowerW(p[0]) <= 'z' && p[1] ==':' && p[2] == '\\' && buflen >= 4)
1740 volumepathname[0] = p[0];
1741 volumepathname[1] = ':';
1742 volumepathname[2] = '\\';
1743 volumepathname[3] = 0;
1749 /***********************************************************************
1750 * GetVolumePathNamesForVolumeNameA (KERNEL32.@)
1752 BOOL WINAPI GetVolumePathNamesForVolumeNameA(LPCSTR volumename, LPSTR volumepathname, DWORD buflen, PDWORD returnlen)
1755 WCHAR *volumenameW = NULL, *volumepathnameW;
1757 if (volumename && !(volumenameW = FILE_name_AtoW( volumename, TRUE ))) return FALSE;
1758 if (!(volumepathnameW = HeapAlloc( GetProcessHeap(), 0, buflen * sizeof(WCHAR) )))
1760 HeapFree( GetProcessHeap(), 0, volumenameW );
1763 if ((ret = GetVolumePathNamesForVolumeNameW( volumenameW, volumepathnameW, buflen, returnlen )))
1765 char *path = volumepathname;
1766 const WCHAR *pathW = volumepathnameW;
1770 int len = strlenW( pathW ) + 1;
1771 FILE_name_WtoA( pathW, len, path, buflen );
1778 HeapFree( GetProcessHeap(), 0, volumenameW );
1779 HeapFree( GetProcessHeap(), 0, volumepathnameW );
1783 static MOUNTMGR_MOUNT_POINTS *query_mount_points( HANDLE mgr, MOUNTMGR_MOUNT_POINT *input, DWORD insize )
1785 MOUNTMGR_MOUNT_POINTS *output;
1786 DWORD outsize = 1024;
1790 if (!(output = HeapAlloc( GetProcessHeap(), 0, outsize )))
1792 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1795 if (DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, insize, output, outsize, NULL, NULL )) break;
1796 outsize = output->Size;
1797 HeapFree( GetProcessHeap(), 0, output );
1798 if (GetLastError() != ERROR_MORE_DATA) return NULL;
1802 /***********************************************************************
1803 * GetVolumePathNamesForVolumeNameW (KERNEL32.@)
1805 BOOL WINAPI GetVolumePathNamesForVolumeNameW(LPCWSTR volumename, LPWSTR volumepathname, DWORD buflen, PDWORD returnlen)
1807 static const WCHAR dosdevicesW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
1810 MOUNTMGR_MOUNT_POINT *spec;
1811 MOUNTMGR_MOUNT_POINTS *link, *target = NULL;
1816 TRACE("%s, %p, %u, %p\n", debugstr_w(volumename), volumepathname, buflen, returnlen);
1818 if (!volumename || (len = strlenW( volumename )) != 49)
1820 SetLastError( ERROR_INVALID_NAME );
1823 mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
1824 if (mgr == INVALID_HANDLE_VALUE) return FALSE;
1826 size = sizeof(*spec) + sizeof(WCHAR) * (len - 1); /* remove trailing backslash */
1827 if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
1828 spec->SymbolicLinkNameOffset = sizeof(*spec);
1829 spec->SymbolicLinkNameLength = size - sizeof(*spec);
1830 name = (WCHAR *)((char *)spec + spec->SymbolicLinkNameOffset);
1831 memcpy( name, volumename, size - sizeof(*spec) );
1832 name[1] = '?'; /* map \\?\ to \??\ */
1834 target = query_mount_points( mgr, spec, size );
1835 HeapFree( GetProcessHeap(), 0, spec );
1840 if (!target->NumberOfMountPoints)
1842 SetLastError( ERROR_FILE_NOT_FOUND );
1846 path = volumepathname;
1847 for (i = 0; i < target->NumberOfMountPoints; i++)
1850 if (target->MountPoints[i].DeviceNameOffset)
1852 const WCHAR *device = (const WCHAR *)((const char *)target + target->MountPoints[i].DeviceNameOffset);
1853 USHORT device_len = target->MountPoints[i].DeviceNameLength;
1855 size = sizeof(*spec) + device_len;
1856 if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
1857 spec->DeviceNameOffset = sizeof(*spec);
1858 spec->DeviceNameLength = device_len;
1859 memcpy( (char *)spec + spec->DeviceNameOffset, device, device_len );
1861 link = query_mount_points( mgr, spec, size );
1862 HeapFree( GetProcessHeap(), 0, spec );
1864 else if (target->MountPoints[i].UniqueIdOffset)
1866 const WCHAR *id = (const WCHAR *)((const char *)target + target->MountPoints[i].UniqueIdOffset);
1867 USHORT id_len = target->MountPoints[i].UniqueIdLength;
1869 size = sizeof(*spec) + id_len;
1870 if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
1871 spec->UniqueIdOffset = sizeof(*spec);
1872 spec->UniqueIdLength = id_len;
1873 memcpy( (char *)spec + spec->UniqueIdOffset, id, id_len );
1875 link = query_mount_points( mgr, spec, size );
1876 HeapFree( GetProcessHeap(), 0, spec );
1878 if (!link) continue;
1879 for (j = 0; j < link->NumberOfMountPoints; j++)
1881 const WCHAR *linkname;
1883 if (!link->MountPoints[j].SymbolicLinkNameOffset) continue;
1884 linkname = (const WCHAR *)((const char *)link + link->MountPoints[j].SymbolicLinkNameOffset);
1886 if (link->MountPoints[j].SymbolicLinkNameLength == sizeof(dosdevicesW) + 2 * sizeof(WCHAR) &&
1887 !memicmpW( linkname, dosdevicesW, sizeof(dosdevicesW) / sizeof(WCHAR) ))
1890 if (volumepathname && len < buflen)
1892 path[0] = linkname[sizeof(dosdevicesW) / sizeof(WCHAR)];
1900 HeapFree( GetProcessHeap(), 0, link );
1902 if (buflen <= len) SetLastError( ERROR_MORE_DATA );
1903 else if (volumepathname)
1905 volumepathname[len] = 0;
1908 if (returnlen) *returnlen = len + 1;
1911 HeapFree( GetProcessHeap(), 0, target );
1916 /***********************************************************************
1917 * FindFirstVolumeA (KERNEL32.@)
1919 HANDLE WINAPI FindFirstVolumeA(LPSTR volume, DWORD len)
1921 WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1922 HANDLE handle = FindFirstVolumeW( buffer, len );
1924 if (handle != INVALID_HANDLE_VALUE)
1926 if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL ))
1928 FindVolumeClose( handle );
1929 handle = INVALID_HANDLE_VALUE;
1932 HeapFree( GetProcessHeap(), 0, buffer );
1936 /***********************************************************************
1937 * FindFirstVolumeW (KERNEL32.@)
1939 HANDLE WINAPI FindFirstVolumeW( LPWSTR volume, DWORD len )
1942 HANDLE mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
1943 NULL, OPEN_EXISTING, 0, 0 );
1944 if (mgr == INVALID_HANDLE_VALUE) return INVALID_HANDLE_VALUE;
1948 MOUNTMGR_MOUNT_POINT input;
1949 MOUNTMGR_MOUNT_POINTS *output;
1951 if (!(output = HeapAlloc( GetProcessHeap(), 0, size )))
1953 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1956 memset( &input, 0, sizeof(input) );
1958 if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, &input, sizeof(input),
1959 output, size, NULL, NULL ))
1961 if (GetLastError() != ERROR_MORE_DATA) break;
1962 size = output->Size;
1963 HeapFree( GetProcessHeap(), 0, output );
1967 /* abuse the Size field to store the current index */
1969 if (!FindNextVolumeW( output, volume, len ))
1971 HeapFree( GetProcessHeap(), 0, output );
1972 return INVALID_HANDLE_VALUE;
1977 return INVALID_HANDLE_VALUE;
1980 /***********************************************************************
1981 * FindNextVolumeA (KERNEL32.@)
1983 BOOL WINAPI FindNextVolumeA( HANDLE handle, LPSTR volume, DWORD len )
1985 WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1988 if ((ret = FindNextVolumeW( handle, buffer, len )))
1990 if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL )) ret = FALSE;
1992 HeapFree( GetProcessHeap(), 0, buffer );
1996 /***********************************************************************
1997 * FindNextVolumeW (KERNEL32.@)
1999 BOOL WINAPI FindNextVolumeW( HANDLE handle, LPWSTR volume, DWORD len )
2001 MOUNTMGR_MOUNT_POINTS *data = handle;
2003 while (data->Size < data->NumberOfMountPoints)
2005 static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{',};
2006 WCHAR *link = (WCHAR *)((char *)data + data->MountPoints[data->Size].SymbolicLinkNameOffset);
2007 DWORD size = data->MountPoints[data->Size].SymbolicLinkNameLength;
2009 /* skip non-volumes */
2010 if (size < sizeof(volumeW) || memcmp( link, volumeW, sizeof(volumeW) )) continue;
2011 if (size + sizeof(WCHAR) >= len * sizeof(WCHAR))
2013 SetLastError( ERROR_FILENAME_EXCED_RANGE );
2016 memcpy( volume, link, size );
2017 volume[1] = '\\'; /* map \??\ to \\?\ */
2018 volume[size / sizeof(WCHAR)] = '\\'; /* Windows appends a backslash */
2019 volume[size / sizeof(WCHAR) + 1] = 0;
2020 TRACE( "returning entry %u %s\n", data->Size - 1, debugstr_w(volume) );
2023 SetLastError( ERROR_NO_MORE_FILES );
2027 /***********************************************************************
2028 * FindVolumeClose (KERNEL32.@)
2030 BOOL WINAPI FindVolumeClose(HANDLE handle)
2032 return HeapFree( GetProcessHeap(), 0, handle );
2035 /***********************************************************************
2036 * FindFirstVolumeMountPointA (KERNEL32.@)
2038 HANDLE WINAPI FindFirstVolumeMountPointA(LPCSTR root, LPSTR mount_point, DWORD len)
2040 FIXME("(%s, %p, %d), stub!\n", debugstr_a(root), mount_point, len);
2041 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2042 return INVALID_HANDLE_VALUE;
2045 /***********************************************************************
2046 * FindFirstVolumeMountPointW (KERNEL32.@)
2048 HANDLE WINAPI FindFirstVolumeMountPointW(LPCWSTR root, LPWSTR mount_point, DWORD len)
2050 FIXME("(%s, %p, %d), stub!\n", debugstr_w(root), mount_point, len);
2051 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2052 return INVALID_HANDLE_VALUE;
2055 /***********************************************************************
2056 * FindVolumeMountPointClose (KERNEL32.@)
2058 BOOL WINAPI FindVolumeMountPointClose(HANDLE h)
2060 FIXME("(%p), stub!\n", h);