diff options
Diffstat (limited to 'src/VBox/Runtime/r3/nt/fs-nt.cpp')
| -rw-r--r-- | src/VBox/Runtime/r3/nt/fs-nt.cpp | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/nt/fs-nt.cpp b/src/VBox/Runtime/r3/nt/fs-nt.cpp new file mode 100644 index 00000000..314059de --- /dev/null +++ b/src/VBox/Runtime/r3/nt/fs-nt.cpp @@ -0,0 +1,284 @@ +/* $Id: fs-nt.cpp $ */ +/** @file + * IPRT - File System, Native NT. + */ + +/* + * Copyright (C) 2006-2013 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/******************************************************************************* +* Header Files * +*******************************************************************************/ +#define LOG_GROUP RTLOGGROUP_FS +#include "internal-r3-nt.h" + +#include <iprt/fs.h> +#include <iprt/path.h> +#include <iprt/string.h> +#include <iprt/param.h> +#include <iprt/err.h> +#include <iprt/log.h> +#include <iprt/assert.h> +#include "internal/fs.h" + + + + +RTR3DECL(int) RTFsQuerySizes(const char *pszFsPath, RTFOFF *pcbTotal, RTFOFF *pcbFree, + uint32_t *pcbBlock, uint32_t *pcbSector) +{ + AssertPtrReturn(pszFsPath, VERR_INVALID_POINTER); + + /* + * Open the file/dir/whatever. + */ + HANDLE hFile; + int rc = rtNtPathOpen(pszFsPath, + GENERIC_READ, + FILE_ATTRIBUTE_NORMAL, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + FILE_OPEN, + FILE_OPEN_FOR_BACKUP_INTENT, + OBJ_CASE_INSENSITIVE, + &hFile, + NULL); + if (RT_SUCCESS(rc)) + { + /* + * Get the volume information. + */ + FILE_FS_SIZE_INFORMATION FsSizeInfo; + IO_STATUS_BLOCK Ios = MY_IO_STATUS_BLOCK_INITIALIZER; + NTSTATUS rcNt = NtQueryVolumeInformationFile(hFile, &Ios, &FsSizeInfo, sizeof(FsSizeInfo), FileFsSizeInformation); + if (NT_SUCCESS(rcNt)) + { + /* + * Calculate the return values. + */ + if (pcbTotal) + { + *pcbTotal = FsSizeInfo.TotalAllocationUnits.QuadPart + * FsSizeInfo.SectorsPerAllocationUnit + * FsSizeInfo.BytesPerSector; + if ( *pcbTotal / FsSizeInfo.SectorsPerAllocationUnit / FsSizeInfo.BytesPerSector + != FsSizeInfo.TotalAllocationUnits.QuadPart) + *pcbTotal = UINT64_MAX; + } + + if (pcbFree) + { + *pcbFree = FsSizeInfo.AvailableAllocationUnits.QuadPart + * FsSizeInfo.SectorsPerAllocationUnit + * FsSizeInfo.BytesPerSector; + if ( *pcbFree / FsSizeInfo.SectorsPerAllocationUnit / FsSizeInfo.BytesPerSector + != FsSizeInfo.AvailableAllocationUnits.QuadPart) + *pcbFree = UINT64_MAX; + } + + if (pcbBlock) + { + *pcbBlock = FsSizeInfo.SectorsPerAllocationUnit * FsSizeInfo.BytesPerSector; + if (*pcbBlock / FsSizeInfo.BytesPerSector != FsSizeInfo.SectorsPerAllocationUnit) + rc = VERR_OUT_OF_RANGE; + } + + if (pcbSector) + *pcbSector = FsSizeInfo.BytesPerSector; + } + else + rc = RTErrConvertFromNtStatus(rcNt); + + rtNtPathClose(hFile); + } + return rc; +} + + +RTR3DECL(int) RTFsQuerySerial(const char *pszFsPath, uint32_t *pu32Serial) +{ + /* + * Validate & get valid root path. + */ + AssertPtrReturn(pszFsPath, VERR_INVALID_POINTER); + AssertPtrReturn(pu32Serial, VERR_INVALID_POINTER); + + /* + * Open the file/dir/whatever. + */ + HANDLE hFile; + int rc = rtNtPathOpen(pszFsPath, + GENERIC_READ, + FILE_ATTRIBUTE_NORMAL, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + FILE_OPEN, + FILE_OPEN_FOR_BACKUP_INTENT, + OBJ_CASE_INSENSITIVE, + &hFile, + NULL); + if (RT_SUCCESS(rc)) + { + /* + * Get the volume information. + */ + union + { + FILE_FS_VOLUME_INFORMATION FsVolInfo; + uint8_t abBuf[sizeof(FILE_FS_VOLUME_INFORMATION) + 4096]; + } u; + IO_STATUS_BLOCK Ios = MY_IO_STATUS_BLOCK_INITIALIZER; + NTSTATUS rcNt = NtQueryVolumeInformationFile(hFile, &Ios, &u, sizeof(u), FileFsVolumeInformation); + if (NT_SUCCESS(rcNt)) + *pu32Serial = u.FsVolInfo.VolumeSerialNumber; + else + rc = RTErrConvertFromNtStatus(rcNt); + + rtNtPathClose(hFile); + } + return rc; +} + + +RTR3DECL(int) RTFsQueryProperties(const char *pszFsPath, PRTFSPROPERTIES pProperties) +{ + /* + * Validate & get valid root path. + */ + AssertPtrReturn(pszFsPath, VERR_INVALID_POINTER); + AssertPtrReturn(pProperties, VERR_INVALID_POINTER); + + /* + * Open the file/dir/whatever. + */ + HANDLE hFile; + int rc = rtNtPathOpen(pszFsPath, + GENERIC_READ, + FILE_ATTRIBUTE_NORMAL, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + FILE_OPEN, + FILE_OPEN_FOR_BACKUP_INTENT, + OBJ_CASE_INSENSITIVE, + &hFile, + NULL); + if (RT_SUCCESS(rc)) + { + /* + * Get the volume information. + */ + union + { + FILE_FS_ATTRIBUTE_INFORMATION FsAttrInfo; + uint8_t abBuf[sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 4096]; + } u; + IO_STATUS_BLOCK Ios = MY_IO_STATUS_BLOCK_INITIALIZER; + NTSTATUS rcNt = NtQueryVolumeInformationFile(hFile, &Ios, &u, sizeof(u), FileFsAttributeInformation); + if (NT_SUCCESS(rcNt)) + { + FILE_FS_DEVICE_INFORMATION FsDevInfo; + rcNt = NtQueryVolumeInformationFile(hFile, &Ios, &FsDevInfo, sizeof(FsDevInfo), FileFsDeviceInformation); + if (NT_SUCCESS(rcNt)) + { + /* + * Fill in the return structure. + */ + memset(pProperties, 0, sizeof(*pProperties)); + pProperties->cbMaxComponent = u.FsAttrInfo.MaximumComponentNameLength; + pProperties->fFileCompression = !!(u.FsAttrInfo.FileSystemAttributes & FILE_FILE_COMPRESSION); + pProperties->fCompressed = !!(u.FsAttrInfo.FileSystemAttributes & FILE_VOLUME_IS_COMPRESSED); + pProperties->fReadOnly = !!(u.FsAttrInfo.FileSystemAttributes & FILE_READ_ONLY_VOLUME); + pProperties->fSupportsUnicode = !!(u.FsAttrInfo.FileSystemAttributes & FILE_UNICODE_ON_DISK); + pProperties->fCaseSensitive = false; /* win32 is case preserving only */ + /** @todo r=bird: What about FILE_CASE_SENSITIVE_SEARCH ? Is this set for NTFS + * as well perchance? If so, better mention it instead of just setting + * fCaseSensitive to false. */ + + /* figure the remote stuff */ + pProperties->fRemote = RT_BOOL(FsDevInfo.Characteristics & FILE_REMOTE_DEVICE); + } + else + rc = RTErrConvertFromNtStatus(rcNt); + } + else + rc = RTErrConvertFromNtStatus(rcNt); + + rtNtPathClose(hFile); + } + return rc; +} + + + +RTR3DECL(int) RTFsQueryType(const char *pszFsPath, PRTFSTYPE penmType) +{ + /* + * Validate input. + */ + *penmType = RTFSTYPE_UNKNOWN; + AssertPtrReturn(pszFsPath, VERR_INVALID_POINTER); + AssertReturn(*pszFsPath, VERR_INVALID_PARAMETER); + + /* + * Open the file/dir/whatever. + */ + HANDLE hFile; + int rc = rtNtPathOpen(pszFsPath, + GENERIC_READ, + FILE_ATTRIBUTE_NORMAL, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + FILE_OPEN, + FILE_OPEN_FOR_BACKUP_INTENT, + OBJ_CASE_INSENSITIVE, + &hFile, + NULL); + if (RT_SUCCESS(rc)) + { + /* + * Get the file system name. + */ + union + { + FILE_FS_ATTRIBUTE_INFORMATION FsAttrInfo; + uint8_t abBuf[sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 4096]; + } u; + IO_STATUS_BLOCK Ios = MY_IO_STATUS_BLOCK_INITIALIZER; + NTSTATUS rcNt = NtQueryVolumeInformationFile(hFile, &Ios, &u, sizeof(u), FileFsAttributeInformation); + if (NT_SUCCESS(rcNt)) + { +#define IS_FS(a_szName) \ + rtNtCompWideStrAndAscii(u.FsAttrInfo.FileSystemName, u.FsAttrInfo.FileSystemNameLength, RT_STR_TUPLE(a_szName)) + if (IS_FS("NTFS")) + *penmType = RTFSTYPE_NTFS; + else if (IS_FS("FAT")) + *penmType = RTFSTYPE_FAT; + else if (IS_FS("FAT32")) + *penmType = RTFSTYPE_FAT; + else if (IS_FS("VBoxSharedFolderFS")) + *penmType = RTFSTYPE_VBOXSHF; +#undef IS_FS + } + else + rc = RTErrConvertFromNtStatus(rcNt); + + rtNtPathClose(hFile); + } + return rc; +} + |