github.com/minio/minio@v0.0.0-20240328213742-3f72439b8a27/internal/disk/type_windows.go (about)

     1  //go:build windows
     2  // +build windows
     3  
     4  // Copyright (c) 2015-2021 MinIO, Inc.
     5  //
     6  // This file is part of MinIO Object Storage stack
     7  //
     8  // This program is free software: you can redistribute it and/or modify
     9  // it under the terms of the GNU Affero General Public License as published by
    10  // the Free Software Foundation, either version 3 of the License, or
    11  // (at your option) any later version.
    12  //
    13  // This program is distributed in the hope that it will be useful
    14  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  // GNU Affero General Public License for more details.
    17  //
    18  // You should have received a copy of the GNU Affero General Public License
    19  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    20  
    21  package disk
    22  
    23  import (
    24  	"path/filepath"
    25  	"syscall"
    26  	"unsafe"
    27  )
    28  
    29  // GetVolumeInformation provides windows drive volume information.
    30  var GetVolumeInformation = kernel32.NewProc("GetVolumeInformationW")
    31  
    32  // getFSType returns the filesystem type of the underlying mounted filesystem
    33  func getFSType(path string) string {
    34  	volumeNameSize, nFileSystemNameSize := uint32(260), uint32(260)
    35  	var lpVolumeSerialNumber uint32
    36  	var lpFileSystemFlags, lpMaximumComponentLength uint32
    37  	var lpFileSystemNameBuffer, volumeName [260]uint16
    38  	ps := syscall.StringToUTF16Ptr(filepath.VolumeName(path))
    39  
    40  	// Extract values safely
    41  	// BOOL WINAPI GetVolumeInformation(
    42  	// _In_opt_  LPCTSTR lpRootPathName,
    43  	// _Out_opt_ LPTSTR  lpVolumeNameBuffer,
    44  	// _In_      DWORD   nVolumeNameSize,
    45  	// _Out_opt_ LPDWORD lpVolumeSerialNumber,
    46  	// _Out_opt_ LPDWORD lpMaximumComponentLength,
    47  	// _Out_opt_ LPDWORD lpFileSystemFlags,
    48  	// _Out_opt_ LPTSTR  lpFileSystemNameBuffer,
    49  	// _In_      DWORD   nFileSystemNameSize
    50  	// );
    51  
    52  	_, _, _ = GetVolumeInformation.Call(uintptr(unsafe.Pointer(ps)),
    53  		uintptr(unsafe.Pointer(&volumeName)),
    54  		uintptr(volumeNameSize),
    55  		uintptr(unsafe.Pointer(&lpVolumeSerialNumber)),
    56  		uintptr(unsafe.Pointer(&lpMaximumComponentLength)),
    57  		uintptr(unsafe.Pointer(&lpFileSystemFlags)),
    58  		uintptr(unsafe.Pointer(&lpFileSystemNameBuffer)),
    59  		uintptr(nFileSystemNameSize))
    60  
    61  	return syscall.UTF16ToString(lpFileSystemNameBuffer[:])
    62  }