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linux/fs/smb/common/fscc.h
ZhangGuoDong 95e1d378ce smb: move filesystem_vol_info into common/fscc.h 
The structure definition on the server side is specified in MS-CIFS
2.2.8.2.3, but we should instead refer to MS-FSCC 2.5.9, just as the
client side does.

Modify the following places:

  - smb3_fs_vol_info -> filesystem_vol_info
  - SerialNumber -> VolumeSerialNumber
  - VolumeLabelSize -> VolumeLabelLength

Then move it into common header file.

Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Steve French <stfrench@microsoft.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-12 18:07:54 -05:00

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/* SPDX-License-Identifier: LGPL-2.1 */
/*
*
* Copyright (c) International Business Machines Corp., 2009, 2013
* Etersoft, 2012
* 2018 Samsung Electronics Co., Ltd.
* Author(s): Steve French (sfrench@us.ibm.com)
* Pavel Shilovsky (pshilovsky@samba.org) 2012
* Namjae Jeon (linkinjeon@kernel.org)
*
*/
#ifndef _COMMON_SMB_FSCC_H
#define _COMMON_SMB_FSCC_H
/* Reparse structures - see MS-FSCC 2.1.2 */
/* struct fsctl_reparse_info_req is empty, only response structs (see below) */
struct reparse_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__u8 DataBuffer[]; /* Variable Length */
} __packed;
struct reparse_guid_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__u8 ReparseGuid[16];
__u8 DataBuffer[]; /* Variable Length */
} __packed;
struct reparse_mount_point_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__le16 SubstituteNameOffset;
__le16 SubstituteNameLength;
__le16 PrintNameOffset;
__le16 PrintNameLength;
__u8 PathBuffer[]; /* Variable Length */
} __packed;
#define SYMLINK_FLAG_RELATIVE 0x00000001
struct reparse_symlink_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__le16 SubstituteNameOffset;
__le16 SubstituteNameLength;
__le16 PrintNameOffset;
__le16 PrintNameLength;
__le32 Flags;
__u8 PathBuffer[]; /* Variable Length */
} __packed;
/* For IO_REPARSE_TAG_NFS - see MS-FSCC 2.1.2.6 */
#define NFS_SPECFILE_LNK 0x00000000014B4E4C
#define NFS_SPECFILE_CHR 0x0000000000524843
#define NFS_SPECFILE_BLK 0x00000000004B4C42
#define NFS_SPECFILE_FIFO 0x000000004F464946
#define NFS_SPECFILE_SOCK 0x000000004B434F53
struct reparse_nfs_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__le64 InodeType; /* NFS_SPECFILE_* */
__u8 DataBuffer[];
} __packed;
/* For IO_REPARSE_TAG_LX_SYMLINK - see MS-FSCC 2.1.2.7 */
struct reparse_wsl_symlink_data_buffer {
__le32 ReparseTag;
__le16 ReparseDataLength;
__u16 Reserved;
__le32 Version; /* Always 2 */
__u8 Target[]; /* Variable Length UTF-8 string without nul-term */
} __packed;
/* See MS-FSCC 2.3.7 */
struct duplicate_extents_to_file {
__u64 PersistentFileHandle; /* source file handle, opaque endianness */
__u64 VolatileFileHandle;
__le64 SourceFileOffset;
__le64 TargetFileOffset;
__le64 ByteCount; /* Bytes to be copied */
} __packed;
/* See MS-FSCC 2.3.9 */
#define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC 0x00000001
struct duplicate_extents_to_file_ex {
__le64 StructureSize; /* MUST be set to 0x30 */
__u64 PersistentFileHandle; /* source file handle, opaque endianness */
__u64 VolatileFileHandle;
__le64 SourceFileOffset;
__le64 TargetFileOffset;
__le64 ByteCount; /* Bytes to be copied */
__le32 Flags;
__le32 Reserved;
} __packed;
/* See MS-FSCC 2.3.20 */
struct fsctl_get_integrity_information_rsp {
__le16 ChecksumAlgorithm;
__le16 Reserved;
__le32 Flags;
__le32 ChecksumChunkSizeInBytes;
__le32 ClusterSizeInBytes;
} __packed;
/* See MS-FSCC 2.3.52 */
struct file_allocated_range_buffer {
__le64 file_offset;
__le64 length;
} __packed;
/* See MS-FSCC 2.3.55 */
struct fsctl_query_file_regions_req {
__le64 FileOffset;
__le64 Length;
__le32 DesiredUsage;
__le32 Reserved;
} __packed;
/* DesiredUsage flags see MS-FSCC 2.3.56.1 */
#define FILE_USAGE_INVALID_RANGE 0x00000000
#define FILE_USAGE_VALID_CACHED_DATA 0x00000001
#define FILE_USAGE_NONCACHED_DATA 0x00000002
struct file_region_info {
__le64 FileOffset;
__le64 Length;
__le32 DesiredUsage;
__le32 Reserved;
} __packed;
/* See MS-FSCC 2.3.56 */
struct fsctl_query_file_region_rsp {
__le32 Flags;
__le32 TotalRegionEntryCount;
__le32 RegionEntryCount;
__u32 Reserved;
struct file_region_info Regions[];
} __packed;
/* See MS-FSCC 2.3.58 */
struct fsctl_query_on_disk_vol_info_rsp {
__le64 DirectoryCount;
__le64 FileCount;
__le16 FsFormatMajVersion;
__le16 FsFormatMinVersion;
__u8 FsFormatName[24];
__le64 FormatTime;
__le64 LastUpdateTime;
__u8 CopyrightInfo[68];
__u8 AbstractInfo[68];
__u8 FormatImplInfo[68];
__u8 LastModifyImplInfo[68];
} __packed;
/* See MS-FSCC 2.3.73 */
struct fsctl_set_integrity_information_req {
__le16 ChecksumAlgorithm;
__le16 Reserved;
__le32 Flags;
} __packed;
/* See MS-FSCC 2.3.75 */
struct fsctl_set_integrity_info_ex_req {
__u8 EnableIntegrity;
__u8 KeepState;
__u16 Reserved;
__le32 Flags;
__u8 Version;
__u8 Reserved2[7];
} __packed;
/*
* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA
* See MS-FSCC 2.3.85
*/
struct file_zero_data_information {
__le64 FileOffset;
__le64 BeyondFinalZero;
} __packed;
/*
* This level 18, although with struct with same name is different from cifs
* level 0x107. Level 0x107 has an extra u64 between AccessFlags and
* CurrentByteOffset.
* See MS-FSCC 2.4.2
*/
struct smb2_file_all_info { /* data block encoding of response to level 18 */
__le64 CreationTime; /* Beginning of FILE_BASIC_INFO equivalent */
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le32 Attributes;
__u32 Pad1; /* End of FILE_BASIC_INFO_INFO equivalent */
__le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
__le64 EndOfFile; /* size ie offset to first free byte in file */
__le32 NumberOfLinks; /* hard links */
__u8 DeletePending;
__u8 Directory;
__u16 Pad2; /* End of FILE_STANDARD_INFO equivalent */
__le64 IndexNumber;
__le32 EASize;
__le32 AccessFlags;
__le64 CurrentByteOffset;
__le32 Mode;
__le32 AlignmentRequirement;
__le32 FileNameLength;
union {
char __pad; /* Legacy structure padding */
DECLARE_FLEX_ARRAY(char, FileName);
};
} __packed; /* level 18 Query */
/* See MS-FSCC 2.4.7 */
typedef struct file_basic_info { /* data block encoding of response to level 18 */
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le32 Attributes;
__u32 Pad;
} __packed FILE_BASIC_INFO; /* size info, level 0x101 */
/* See MS-FSCC 2.4.8 */
typedef struct {
__le32 NextEntryOffset;
__u32 FileIndex;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 EndOfFile;
__le64 AllocationSize;
__le32 ExtFileAttributes;
__le32 FileNameLength;
__le32 EaSize; /* length of the xattrs */
__u8 ShortNameLength;
__u8 Reserved;
__u8 ShortName[24];
char FileName[];
} __packed FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
/* See MS-FSCC 2.4.10 */
typedef struct {
__le32 NextEntryOffset;
__u32 FileIndex;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 EndOfFile;
__le64 AllocationSize;
__le32 ExtFileAttributes;
__le32 FileNameLength;
char FileName[];
} __packed FILE_DIRECTORY_INFO; /* level 0x101 FF resp data */
/* See MS-FSCC 2.4.13 */
struct smb2_file_eof_info { /* encoding of request for level 10 */
__le64 EndOfFile; /* new end of file value */
} __packed; /* level 20 Set */
/* See MS-FSCC 2.4.14 */
typedef struct {
__le32 NextEntryOffset;
__u32 FileIndex;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 EndOfFile;
__le64 AllocationSize;
__le32 ExtFileAttributes;
__le32 FileNameLength;
__le32 EaSize; /* length of the xattrs */
char FileName[];
} __packed FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
/* See MS-FSCC 2.4.24 */
typedef struct {
__le32 NextEntryOffset;
__u32 FileIndex;
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 EndOfFile;
__le64 AllocationSize;
__le32 ExtFileAttributes;
__le32 FileNameLength;
__le32 EaSize; /* EA size */
__le32 Reserved;
__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
char FileName[];
} __packed FILE_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
/* See MS-FSCC 2.4.27 */
struct smb2_file_internal_info {
__le64 IndexNumber;
} __packed; /* level 6 Query */
/* See MS-FSCC 2.4.28.2 */
struct smb2_file_link_info { /* encoding of request for level 11 */
/* New members MUST be added within the struct_group() macro below. */
__struct_group(smb2_file_link_info_hdr, __hdr, __packed,
__u8 ReplaceIfExists; /* 1 = replace existing link with new */
/* 0 = fail if link already exists */
__u8 Reserved[7];
__u64 RootDirectory; /* MBZ for network operations (why says spec?) */
__le32 FileNameLength;
);
char FileName[]; /* Name to be assigned to new link */
} __packed; /* level 11 Set */
static_assert(offsetof(struct smb2_file_link_info, FileName) == sizeof(struct smb2_file_link_info_hdr),
"struct member likely outside of __struct_group()");
/* See MS-FSCC 2.4.34 */
struct smb2_file_network_open_info {
struct_group_attr(network_open_info, __packed,
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
__le64 ChangeTime;
__le64 AllocationSize;
__le64 EndOfFile;
__le32 Attributes;
);
__le32 Reserved;
} __packed; /* level 34 Query also similar returned in close rsp and open rsp */
/* See MS-FSCC 2.4.42.2 */
struct smb2_file_rename_info { /* encoding of request for level 10 */
/* New members MUST be added within the struct_group() macro below. */
__struct_group(smb2_file_rename_info_hdr, __hdr, __packed,
__u8 ReplaceIfExists; /* 1 = replace existing target with new */
/* 0 = fail if target already exists */
__u8 Reserved[7];
__u64 RootDirectory; /* MBZ for network operations (why says spec?) */
__le32 FileNameLength;
);
char FileName[]; /* New name to be assigned */
/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
} __packed; /* level 10 Set */
static_assert(offsetof(struct smb2_file_rename_info, FileName) == sizeof(struct smb2_file_rename_info_hdr),
"struct member likely outside of __struct_group()");
/* File System Information Classes */
/* See MS-FSCC 2.5 */
#define FS_VOLUME_INFORMATION 1 /* Query */
#define FS_LABEL_INFORMATION 2 /* Set */
#define FS_SIZE_INFORMATION 3 /* Query */
#define FS_DEVICE_INFORMATION 4 /* Query */
#define FS_ATTRIBUTE_INFORMATION 5 /* Query */
#define FS_CONTROL_INFORMATION 6 /* Query, Set */
#define FS_FULL_SIZE_INFORMATION 7 /* Query */
#define FS_OBJECT_ID_INFORMATION 8 /* Query, Set */
#define FS_DRIVER_PATH_INFORMATION 9 /* Query */
#define FS_SECTOR_SIZE_INFORMATION 11 /* SMB3 or later. Query */
/* See POSIX Extensions to MS-FSCC 2.3.1.1 */
#define FS_POSIX_INFORMATION 100 /* SMB3.1.1 POSIX. Query */
/* See MS-FSCC 2.5.1 */
#define MAX_FS_NAME_LEN 52
typedef struct {
__le32 Attributes;
__le32 MaxPathNameComponentLength;
__le32 FileSystemNameLen;
__le16 FileSystemName[]; /* do not have to save this - get subset? */
} __packed FILE_SYSTEM_ATTRIBUTE_INFO;
/* List of FileSystemAttributes - see MS-FSCC 2.5.1 */
#define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */
#define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */
#define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000
#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
#define FILE_SUPPORTS_HARD_LINKS 0x00400000
#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
#define FILE_READ_ONLY_VOLUME 0x00080000
#define FILE_NAMED_STREAMS 0x00040000
#define FILE_SUPPORTS_ENCRYPTION 0x00020000
#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
#define FILE_VOLUME_IS_COMPRESSED 0x00008000
#define FILE_SUPPORTS_POSIX_UNLINK_RENAME 0x00000400
#define FILE_RETURNS_CLEANUP_RESULT_INFO 0x00000200
#define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
#define FILE_VOLUME_QUOTAS 0x00000020
#define FILE_FILE_COMPRESSION 0x00000010
#define FILE_PERSISTENT_ACLS 0x00000008
#define FILE_UNICODE_ON_DISK 0x00000004
#define FILE_CASE_PRESERVED_NAMES 0x00000002
#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
/*
* File System Control Information
* See MS-FSCC 2.5.2
*/
struct smb2_fs_control_info {
__le64 FreeSpaceStartFiltering;
__le64 FreeSpaceThreshold;
__le64 FreeSpaceStopFiltering;
__le64 DefaultQuotaThreshold;
__le64 DefaultQuotaLimit;
__le32 FileSystemControlFlags;
__le32 Padding;
} __packed;
/* See MS-FSCC 2.5.4 */
struct smb2_fs_full_size_info {
__le64 TotalAllocationUnits;
__le64 CallerAvailableAllocationUnits;
__le64 ActualAvailableAllocationUnits;
__le32 SectorsPerAllocationUnit;
__le32 BytesPerSector;
} __packed;
/* See MS-FSCC 2.5.7 */
#define SSINFO_FLAGS_ALIGNED_DEVICE 0x00000001
#define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
#define SSINFO_FLAGS_NO_SEEK_PENALTY 0x00000004
#define SSINFO_FLAGS_TRIM_ENABLED 0x00000008
/* sector size info struct */
struct smb3_fs_ss_info {
__le32 LogicalBytesPerSector;
__le32 PhysicalBytesPerSectorForAtomicity;
__le32 PhysicalBytesPerSectorForPerf;
__le32 FSEffPhysicalBytesPerSectorForAtomicity;
__le32 Flags;
__le32 ByteOffsetForSectorAlignment;
__le32 ByteOffsetForPartitionAlignment;
} __packed;
/* See MS-FSCC 2.5.8 */
typedef struct {
__le64 TotalAllocationUnits;
__le64 AvailableAllocationUnits;
__le32 SectorsPerAllocationUnit;
__le32 BytesPerSector;
} __packed FILE_SYSTEM_SIZE_INFO; /* size info, level 0x103 */
/* volume info struct - see MS-FSCC 2.5.9 */
#define MAX_VOL_LABEL_LEN 32
struct filesystem_vol_info {
__le64 VolumeCreationTime;
__le32 VolumeSerialNumber;
__le32 VolumeLabelLength; /* includes trailing null */
__u8 SupportsObjects; /* True if eg like NTFS, supports objects */
__u8 Reserved;
__u8 VolumeLabel[]; /* variable len */
} __packed;
/* See MS-FSCC 2.5.10 */
typedef struct {
__le32 DeviceType;
__le32 DeviceCharacteristics;
} __packed FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
/*
* File Attributes
* See MS-FSCC 2.6
*/
#define FILE_ATTRIBUTE_READONLY 0x00000001
#define FILE_ATTRIBUTE_HIDDEN 0x00000002
#define FILE_ATTRIBUTE_SYSTEM 0x00000004
#define FILE_ATTRIBUTE_DIRECTORY 0x00000010
#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
#define FILE_ATTRIBUTE_NORMAL 0x00000080
#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200
#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400
#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
#define FILE_ATTRIBUTE_OFFLINE 0x00001000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000
#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
#define FILE_ATTRIBUTE_INTEGRITY_STREAM 0x00008000
#define FILE_ATTRIBUTE_NO_SCRUB_DATA 0x00020000
#define FILE_ATTRIBUTE_MASK (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | \
FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_DIRECTORY | \
FILE_ATTRIBUTE_ARCHIVE | FILE_ATTRIBUTE_NORMAL | \
FILE_ATTRIBUTE_TEMPORARY | FILE_ATTRIBUTE_SPARSE_FILE | \
FILE_ATTRIBUTE_REPARSE_POINT | FILE_ATTRIBUTE_COMPRESSED | \
FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_NOT_CONTENT_INDEXED | \
FILE_ATTRIBUTE_ENCRYPTED | FILE_ATTRIBUTE_INTEGRITY_STREAM | \
FILE_ATTRIBUTE_NO_SCRUB_DATA)
#define FILE_ATTRIBUTE_READONLY_LE cpu_to_le32(FILE_ATTRIBUTE_READONLY)
#define FILE_ATTRIBUTE_HIDDEN_LE cpu_to_le32(FILE_ATTRIBUTE_HIDDEN)
#define FILE_ATTRIBUTE_SYSTEM_LE cpu_to_le32(FILE_ATTRIBUTE_SYSTEM)
#define FILE_ATTRIBUTE_DIRECTORY_LE cpu_to_le32(FILE_ATTRIBUTE_DIRECTORY)
#define FILE_ATTRIBUTE_ARCHIVE_LE cpu_to_le32(FILE_ATTRIBUTE_ARCHIVE)
#define FILE_ATTRIBUTE_NORMAL_LE cpu_to_le32(FILE_ATTRIBUTE_NORMAL)
#define FILE_ATTRIBUTE_TEMPORARY_LE cpu_to_le32(FILE_ATTRIBUTE_TEMPORARY)
#define FILE_ATTRIBUTE_SPARSE_FILE_LE cpu_to_le32(FILE_ATTRIBUTE_SPARSE_FILE)
#define FILE_ATTRIBUTE_REPARSE_POINT_LE cpu_to_le32(FILE_ATTRIBUTE_REPARSE_POINT)
#define FILE_ATTRIBUTE_COMPRESSED_LE cpu_to_le32(FILE_ATTRIBUTE_COMPRESSED)
#define FILE_ATTRIBUTE_OFFLINE_LE cpu_to_le32(FILE_ATTRIBUTE_OFFLINE)
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE cpu_to_le32(FILE_ATTRIBUTE_NOT_CONTENT_INDEXED)
#define FILE_ATTRIBUTE_ENCRYPTED_LE cpu_to_le32(FILE_ATTRIBUTE_ENCRYPTED)
#define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE cpu_to_le32(FILE_ATTRIBUTE_INTEGRITY_STREAM)
#define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE cpu_to_le32(FILE_ATTRIBUTE_NO_SCRUB_DATA)
#define FILE_ATTRIBUTE_MASK_LE cpu_to_le32(FILE_ATTRIBUTE_MASK)
/*
* SMB2 Notify Action Flags
* See MS-FSCC 2.7.1
*/
#define FILE_ACTION_ADDED 0x00000001
#define FILE_ACTION_REMOVED 0x00000002
#define FILE_ACTION_MODIFIED 0x00000003
#define FILE_ACTION_RENAMED_OLD_NAME 0x00000004
#define FILE_ACTION_RENAMED_NEW_NAME 0x00000005
#define FILE_ACTION_ADDED_STREAM 0x00000006
#define FILE_ACTION_REMOVED_STREAM 0x00000007
#define FILE_ACTION_MODIFIED_STREAM 0x00000008
#define FILE_ACTION_REMOVED_BY_DELETE 0x00000009
#define FILE_ACTION_ID_NOT_TUNNELLED 0x0000000A
#define FILE_ACTION_TUNNELLED_ID_COLLISION 0x0000000B
/*
* Response contains array of the following structures
* See MS-FSCC 2.7.1
*/
struct file_notify_information {
__le32 NextEntryOffset;
__le32 Action;
__le32 FileNameLength;
__u8 FileName[];
} __packed;
/*
* See POSIX Extensions to MS-FSCC 2.3.2.1
* Link: https://gitlab.com/samba-team/smb3-posix-spec/-/blob/master/fscc_posix_extensions.md
*/
typedef struct {
/* For undefined recommended transfer size return -1 in that field */
__le32 OptimalTransferSize; /* bsize on some os, iosize on other os */
__le32 BlockSize;
/* The next three fields are in terms of the block size.
* (above). If block size is unknown, 4096 would be a
* reasonable block size for a server to report.
* Note that returning the blocks/blocksavail removes need
* to make a second call (to QFSInfo level 0x103 to get this info.
* UserBlockAvail is typically less than or equal to BlocksAvail,
* if no distinction is made return the same value in each
*/
__le64 TotalBlocks;
__le64 BlocksAvail; /* bfree */
__le64 UserBlocksAvail; /* bavail */
/* For undefined Node fields or FSID return -1 */
__le64 TotalFileNodes;
__le64 FreeFileNodes;
__le64 FileSysIdentifier; /* fsid */
/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
} __packed FILE_SYSTEM_POSIX_INFO;
#endif /* _COMMON_SMB_FSCC_H */
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