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2.2.4.41.2 Response

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The server MUST populate the FID field only, unless the client has requested file attribute data by setting bit 0 of the Flags field in the request. If file attribute data is not requested, all fields following the FID in the response MUST be set to zero.

 SMB_Parameters
   {
   UCHAR WordCount;
   Words
     {
     UCHAR               AndXCommand;
     UCHAR               AndXReserved;
     USHORT              AndXOffset;
     USHORT              FID;
     SMB_FILE_ATTRIBUTES FileAttrs;
     UTIME               LastWriteTime;
     ULONG               FileDataSize;
     USHORT              AccessRights;
     USHORT              ResourceType;
     SMB_NMPIPE_STATUS   NMPipeStatus;
     USHORT              OpenResults;
     USHORT              Reserved[3];
     }
   }
 SMB_Data
   {
   USHORT ByteCount;
   }
            
           


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SMB_Parameters (31 bytes)

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SMB_Data

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SMB_Parameters (31 bytes):


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WordCount

Words (30 bytes)

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WordCount (1 byte): This field MUST be 0x0F.

Words (30 bytes):


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AndXCommand

AndXReserved

AndXOffset

FID

FileAttrs

LastWriteTime

FileDataSize

AccessRights

ResourceType

NMPipeStatus

OpenResults

Reserved

...

AndXCommand (1 byte): The command code for the next SMB command in the packet. This value MUST be set to 0xFF if there are no additional SMB command responses in the server response packet.

AndXReserved (1 byte): A reserved field. This MUST be set to 0x00 when this response is sent, and the client MUST ignore this field.

AndXOffset (2 bytes): This field MUST be set to the offset, in bytes, from the start of the SMB Header (section 2.2.3.1) to the start of the WordCount field in the next SMB command response in this packet. This field is valid only if the AndXCommand field is not set to 0xFF. If AndXCommand is 0xFF, this field MUST be ignored by the client.

FID (2 bytes): A valid FID representing the open instance of the file.

FileAttrs (2 bytes): The actual file system attributes of the file. If none of the attribute bytes is set, the file attributes refer to a regular file.

LastWriteTime (4 bytes): A 32-bit integer time value of the last modification to the file.

FileDataSize (4 bytes): The number of bytes in the file. This field is advisory and MAY be used.

AccessRights (2 bytes): A 16-bit field that shows granted access rights to the file.

Name andvalue

Meaning

SMB_DA_ACCESS_READ

0x0000

Read-only Access

SMB_DA_ACCESS_WRITE

0x0001

Write-only Access

SMB_DA_ACCESS_READ_WRITE

0x0002

Read/Write Access

All other values are reserved and MUST NOT be used.

ResourceType (2 bytes): A 16-bit field that shows the resource type opened.

Name and value

Meaning

FileTypeDisk

0x0000

Disk file or directory.

FileTypeByteModePipe

0x0001

Byte mode named pipe.

FileTypeMessageModePipe

0x0002

Message-mode named pipe.

FileTypePrinter

0x0003

Printer device.

FileTypeCommDevice

0x0004

Character-mode device. When an extended protocol has been negotiated, this value allows a device to be opened for driver-level I/O. This provides direct access to real-time and interactive devices such as modems, scanners, and so on.

FileTypeUnknown

0xFFFF

Unknown file type.

All other values are reserved and MUST NOT be used.

NMPipeStatus (2 bytes): A 16-bit field that contains the status of the named pipe if the resource type opened is a named pipe.

This field is formatted as an SMB_NMPIPE_STATUS (section 2.2.1.3).

OpenResults (2 bytes): A 16-bit field that shows the results of the open operation.

Name and

bitmask

Values

Meaning

OpenResult

0x0003

1

The file existed and was opened.

2

The file did not exist and was therefore created.

3

The file existed and was truncated.

Other

Reserved

LockStatus

0x8000

0

No OpLock was requested, the OpLock could not be granted, or the server does not support OpLocks.

1

An OpLock was requested by the client and was granted by the server.

Reserved (6 bytes): All entries MUST be 0x0000.

SMB_Data (2 bytes):


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ByteCount

ByteCount (2 bytes): This field MUST be 0x0000. No data is sent by this message.

Error Codes

SMB error class

SMB error code

NT status code

POSIX equivalent

Description

ERRDOS

(0x01)

ERRbadfile

(0x0002)

STATUS_NO_SUCH_FILE

(0xC000000F)

ENOENT

The named file was not found.

ERRDOS

(0x01)

ERRbadpath

(0x0003)

STATUS_OBJECT_PATH_SYNTAX_BAD

(0xC000003B)

ENOENT

The file path syntax is invalid.

ERRDOS

(0x01)

ERRbadpath

(0x0003)

STATUS_OBJECT_PATH_INVALID

(0xC0000039)

ENOTDIR

A component of the path-prefix was not a directory.

ERRDOS

(0x01)

ERRnofids

(0x0004)

STATUS_OS2_TOO_MANY_OPEN_FILES

(0x00040001)

STATUS_TOO_MANY_OPENED_FILES

(0xC000011F)

ENFILE

Too many open files, no more FIDs available.

ERRDOS

(0x01)

ERRnoaccess

(0x0005)

STATUS_ACCESS_DENIED

(0xC0000022)

EACCESS

A component of the path-prefix denied search permission OR requested access permission is denied for the file OR open mode failure.

ERRDOS

(0x01)

ERRnoaccess

(0x0005)

STATUS_FILE_IS_A_DIRECTORY

(0xC00000BA)

EISDIR

Named file is an existing directory and requested open mode is write or read/write.

ERRDOS

(0x01)

ERRnomem

(0x0008)

STATUS_INSUFF_SERVER_RESOURCES

(0xC0000205)

ENOMEM

The server is out of resources.

ERRDOS

(0x01)

ERRbadshare

(0x0020)

STATUS_SHARING_VIOLATION

(0xC0000043)

EAGAIN

File exists, mandatory file/record locking is set, and there are outstanding record locks on the file.

ERRSRV

(0x02)

ERRerror

(0x0001)

STATUS_INVALID_SMB

(0x00010002)

Invalid SMB. Not enough parameter bytes were sent or the ANDX command is invalid.

ERRSRV

(0x02)

ERRerror

(0x0001)

EFAULT

Path points outside the allocated address space of the process.

ERRSRV

(0x02)

ERRerror

(0x0001)

EINTR

A signal was caught during the open operation.

ERRSRV

(0x02)

ERRerror

(0x0001)

ENXIO

Generic server open failure

ERRSRV

(0x02)

ERRerror (0x0001)

EEXIST

The file could not be created because another file with attributes that do not match those specified in the SMB_Parameters.Words.FileAttrs field already exists and has a conflicting name.

ERRSRV

(0x02)

ERRerror (0x0001)

EMFILE

The maximum number of file descriptors available on the server for this session are currently open.

ERRSRV

(0x02)

ERRerror (0x0001)

ENOSPC

No space left on device. The system is out of resources required to create the file.

ERRSRV

(0x02)

ERRerror (0x0001)

EROFS

Read-Only File System. Write or read/write access was requested on a file existing within a read-only file system.

ERRSRV

(0x02)

ERRerror (0x0001)

ETXTBSY

Text file is busy. Write or read/write access was requested on a batch script that is currently being executed.

ERRSRV

(0x02)

ERRerror

(0x0001)

STATUS_ACCESS_DENIED

(0xC0000022)

EROFS

Named file resides on read-only file system, and requested access permission is write or read/write.

ERRSRV

(0x02)

ERRaccess

(0x0004)

STATUS_NETWORK_ACCESS_DENIED

(0xC00000CA)

Permission conflict between requested permission and permissions for the shared resource: for example, open for write of a file in a read-only file system subtree.

ERRSRV

(0x02)

ERRinvtid

(0x0005)

STATUS_SMB_BAD_TID

(0x00050002)

The TID is no longer valid.

ERRSRV

(0x02)

ERRinvdevice

(0x0007)

STATUS_BAD_DEVICE_TYPE

(0xC00000CB)

Server does not support the requested device type.

ERRSRV

(0x02)

ERRbaduid

(0x005B)

STATUS_SMB_BAD_UID

(0x005B0002)

The UID supplied is not defined to the session, or the user identified by the UID does not have sufficient privileges.

ERRHRD

(0x03)

ERRnowrite

(0x0013)

STATUS_MEDIA_WRITE_PROTECTED

(0xC00000A2)

EROFS

Attempt to write to a read-only file system.

ERRHRD

(0x03)

ERRdata

(0x0017)

STATUS_DATA_ERROR

(0xC000003E)

EIO

Disk I/O error.