| /* | |
| * 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" | |
| #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/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; | |
| InitializeObjectAttributes( &attr, &nameW, OBJ_CASE_INSENSITIVE, 0, 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; | |
| } | |
| InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, 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; | |
| } | |
| /*********************************************************************** | |
| * 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; | |
| unsigned int i; | |
| 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; | |
| } | |
| InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, 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) | |
| { | |
| TRACE( "cannot open device %s: %lx\n", debugstr_w(nt_name.Buffer), status ); | |
| status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0, | |
| FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ); | |
| } | |
| if (!set_ntstatus( status )) goto done; | |
| ret = GetVolumeInformationByHandleW( handle, label, label_len, serial, filename_len, flags, | |
| fsname, fsname_len ); | |
| NtClose( handle ); | |
| 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, %lx)\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)) / sizeof(WCHAR) ); | |
| TRACE("read_nt_symlink got stat=%lx, 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 %ld 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; | |
| UNICODE_STRING nt_name, nt_target; | |
| OBJECT_ATTRIBUTES attr; | |
| NTSTATUS status; | |
| HANDLE handle; | |
| TRACE("%#lx, %s, %s\n", flags, debugstr_w(device), debugstr_w(target)); | |
| if (flags & ~(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION)) | |
| FIXME("Ignoring flags %#lx.\n", flags & ~(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION)); | |
| if (!(link_name = HeapAlloc( GetProcessHeap(), 0, sizeof(L"\\DosDevices\\") + lstrlenW(device) * sizeof(WCHAR) ))) | |
| { | |
| SetLastError(ERROR_OUTOFMEMORY); | |
| return FALSE; | |
| } | |
| lstrcpyW( link_name, L"\\DosDevices\\" ); | |
| lstrcatW( link_name, device ); | |
| RtlInitUnicodeString( &nt_name, link_name ); | |
| InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE | OBJ_PERMANENT, 0, NULL ); | |
| if (flags & DDD_REMOVE_DEFINITION) | |
| { | |
| if (!(status = NtOpenSymbolicLinkObject( &handle, DELETE, &attr ))) | |
| { | |
| status = NtMakeTemporaryObject( handle ); | |
| NtClose( handle ); | |
| } | |
| goto done; | |
| } | |
| if (!(flags & DDD_RAW_TARGET_PATH)) | |
| { | |
| status = RtlDosPathNameToNtPathName_U_WithStatus( target, &nt_target, NULL, NULL ); | |
| if (status) goto done; | |
| } | |
| else | |
| RtlInitUnicodeString( &nt_target, target ); | |
| if (!(status = NtCreateSymbolicLinkObject( &handle, SYMBOLIC_LINK_ALL_ACCESS, &attr, &nt_target ))) | |
| NtClose( handle ); | |
| done: | |
| HeapFree( GetProcessHeap(), 0, link_name ); | |
| return set_ntstatus( status ); | |
| } | |
| /*********************************************************************** | |
| * QueryDosDeviceW (kernelbase.@) | |
| * | |
| * returns array of strings terminated by \0, terminated by \0 | |
| */ | |
| DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize ) | |
| { | |
| 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 */ | |
| { | |
| UNICODE_STRING nt_name = RTL_CONSTANT_STRING( L"\\DosDevices" ); | |
| OBJECT_ATTRIBUTES attr; | |
| HANDLE handle; | |
| WCHAR *p = target; | |
| InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, 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 = RTL_CONSTANT_STRING( L"\\DosDevices\\" ); | |
| DWORD bitmask = 0; | |
| NTSTATUS status; | |
| HANDLE handle; | |
| nt_name.Length -= sizeof(WCHAR); /* without trailing slash */ | |
| InitializeObjectAttributes( &attr, &nt_name, OBJ_CASE_INSENSITIVE, 0, 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("%#08lx, %#08lx, %#08lx, %#08lx\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 ); | |
| } | |
| /*********************************************************************** | |
| * GetDiskSpaceInformationW (kernelbase.@) | |
| */ | |
| HRESULT WINAPI GetDiskSpaceInformationW( LPCWSTR root, DISK_SPACE_INFORMATION *info ) | |
| { | |
| IO_STATUS_BLOCK io; | |
| NTSTATUS status; | |
| HANDLE handle; | |
| TRACE( "%s,%p\n", debugstr_w(root), info ); | |
| if (!info) | |
| return HRESULT_FROM_NT( ERROR_INVALID_DATA | ERROR_SEVERITY_WARNING | ERROR_SEVERITY_INFORMATIONAL ); | |
| if (!open_device_root( root, &handle )) return HRESULT_FROM_WIN32( ERROR_PATH_NOT_FOUND ); | |
| status = NtQueryVolumeInformationFile( handle, &io, (FILE_FS_FULL_SIZE_INFORMATION_EX *)info, sizeof(*info), | |
| FileFsFullSizeInformationEx ); | |
| NtClose( handle ); | |
| if (!set_ntstatus( status )) return status; | |
| return S_OK; | |
| } | |
| /*********************************************************************** | |
| * GetDiskSpaceInformationA (kernelbase.@) | |
| */ | |
| HRESULT WINAPI GetDiskSpaceInformationA( LPCSTR root, DISK_SPACE_INFORMATION *info ) | |
| { | |
| WCHAR *rootW = NULL; | |
| if (root && !(rootW = file_name_AtoW( root, FALSE ))) return FALSE; | |
| return GetDiskSpaceInformationW( rootW, info ); | |
| } | |
| 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, %lu, %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 %lu %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; | |
| } |