/// <summary>
/// Create File, named pipe, directory. One transport can only create one file.
/// </summary>
/// <param name="fileName">The file, namedpipe, directory name</param>
/// <param name="desiredAccess">The desired access</param>
/// <param name="impersonationLevel">The impersonation level</param>
/// <param name="fileAttribute">The file attribute, this field is only valid when create file.
/// </param>
/// <param name="createDisposition">Defines the action the server MUST take if the file that is
/// specified in the name field already exists</param>
/// <param name="createOption">Specifies the options to be applied when creating or opening the file</param>
private void InternalCreate(string fileName, NtTransactDesiredAccess desiredAccess,
NtTransactImpersonationLevel impersonationLevel, SMB_EXT_FILE_ATTR fileAttribute,
NtTransactCreateDisposition createDisposition, NtTransactCreateOptions createOption)
{
SmbNtCreateAndxRequestPacket request = smbClient.CreateCreateRequest(
this.treeId,
fileName,
desiredAccess,
fileAttribute,
NtTransactShareAccess.NONE,
createDisposition,
createOption,
impersonationLevel,
CreateFlags.NT_CREATE_REQUEST_EXTENDED_RESPONSE);
if (this.isSignRequired)
{
request.Sign(this.NextSequenceNumber, this.sessionKey);
}
uint status = 0;
SmbNtCreateAndxResponsePacket response =
this.SendAndExpectSmbPacket(request, internalTimeout, out status) as SmbNtCreateAndxResponsePacket;
if (status != 0)
{
throw new InvalidOperationException("Create Failed. ErrorCode: " + status);
}
this.fid = response.SmbParameters.FID;
}
/// <summary>
/// Create a not transaction create request packet for client to create new or open share on server.
/// </summary>
/// <param name = "treeId">the valid tree connect id, must be response by server of the tree connect. </param>
/// <param name = "fileName">A string that represents the name of the file to open or create. </param>
/// <param name = "desiredAccess">
/// Access wanted. This value MUST be specified in the ACCESS_MASK format, as specified in [CIFS] section 3.7.
/// </param>
/// <param name = "extFileAttributes">Extended attributes and flags for this file or directory. </param>
/// <param name = "shareAccess">Type of shared access requested for this file or directory. </param>
/// <param name = "createDisposition">The action to take if a file does or does not exist. </param>
/// <param name = "createOptions">The options to use if creating the file or directory. </param>
/// <param name = "impersonationLevel">
/// This field specifies the information given to the server about the client and how the server MUST
/// represent, or impersonate, the client.
/// </param>
/// <param name = "createFlags">
/// A 32-bit field containing a set of options that specify the security tracking mode.
/// </param>
/// <param name="securityDescriptor">The security descriptor to use when requesting access to the file</param>
/// <param name="extendedAttributes">
/// The list of extended attributes that SHOULD be applied to the new file.
/// </param>
/// <returns>a nt transaction create request packet</returns>
public virtual SmbNtTransactCreateRequestPacket CreateNtTransCreateRequest(
ushort treeId,
string fileName,
NtTransactDesiredAccess desiredAccess,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
CreateFlags createFlags,
RawSecurityDescriptor securityDescriptor,
FILE_FULL_EA_INFORMATION[] extendedAttributes)
{
Cifs.SmbNtTransactCreateRequestPacket request = this.cifsClient.CreateNtTransactCreateRequest(
this.MessageId, this.GetSessionIdByTreeId(treeId), treeId,
(SmbFlags)this.capability.Flag, (SmbFlags2)this.capability.Flags2,
this.capability.MaxSetupCount, this.capability.MaxParameterCount, this.capability.MaxDataCount,
(NtTransactFlags)createFlags,
0, // No root directory
desiredAccess,
0, // AllocationSize should be 0
extFileAttributes, shareAccess, createDisposition, (Cifs.NtTransactCreateOptions)createOptions,
impersonationLevel,
(NtTransactSecurityFlags)0x00,
fileName,
securityDescriptor, // No security descriptor
extendedAttributes // No extended attributes
);
return new SmbNtTransactCreateRequestPacket(request);
}
/// <summary>
/// Create a create request packet for client to create new or open share on server.
/// </summary>
/// <param name = "treeId">the valid tree connect id, must be response by server of the tree connect. </param>
/// <param name = "fileName">A string that represents the name of the file to open or create. </param>
/// <param name = "desiredAccess">
/// Access wanted. This value MUST be specified in the ACCESS_MASK format, as specified in [CIFS] section 3.7.
/// </param>
/// <param name = "extFileAttributes">Extended attributes and flags for this file or directory. </param>
/// <param name = "shareAccess">Type of shared access requested for this file or directory. </param>
/// <param name = "createDisposition">The action to take if a file does or does not exist. </param>
/// <param name = "createOptions">The options to use if creating the file or directory. </param>
/// <param name = "impersonationLevel">
/// This field specifies the information given to the server about the client and how the server MUST
/// represent, or impersonate, the client.
/// </param>
/// <param name = "createFlags">
/// A 32-bit field containing a set of options that specify the security tracking mode.
/// </param>
/// <returns>a create packet </returns>
public SmbNtCreateAndxRequestPacket CreateCreateRequest(
ushort treeId,
string fileName,
NtTransactDesiredAccess desiredAccess,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
CreateFlags createFlags
)
{
return CreateCreateRequest(this.MessageId,
this.GetSessionIdByTreeId(treeId), treeId,
this.capability.Flag, this.capability.Flags2, fileName,
desiredAccess, extFileAttributes, shareAccess, createDisposition, createOptions,
impersonationLevel, createFlags);
}
/// <summary>
/// Create a create request packet for client to create new or open share on server.
/// </summary>
/// <param name = "messageId">the id of message, used to identity the request and the server response. </param>
/// <param name = "sessionUid">the valid session id, must be response by server of the session setup request. </param>
/// <param name = "treeId">the valid tree connect id, must be response by server of the tree connect. </param>
/// <param name = "flags">
/// The Flags field contains individual flags, as specified in [CIFS] sections 2.4.2 and 3.1.1.
/// </param>
/// <param name = "flags2">
/// The Flags2 field contains individual bit flags that, depending on the negotiated SMB dialect, indicate
/// various client and server capabilities.
/// </param>
/// <param name = "fileName">A string that represents the name of the file to open or create. </param>
/// <param name = "desiredAccess">
/// Access wanted. This value MUST be specified in the ACCESS_MASK format, as specified in [CIFS] section 3.7.
/// </param>
/// <param name = "extFileAttributes">Extended attributes and flags for this file or directory. </param>
/// <param name = "shareAccess">Type of shared access requested for this file or directory. </param>
/// <param name = "createDisposition">The action to take if a file does or does not exist. </param>
/// <param name = "createOptions">The options to use if creating the file or directory. </param>
/// <param name = "impersonationLevel">
/// This field specifies the information given to the server about the client and how the server MUST
/// represent, or impersonate, the client.
/// </param>
/// <param name = "createFlags">
/// A 32-bit field containing a set of options that specify the security tracking mode.
/// </param>
/// <returns>a create packet </returns>
private SmbNtCreateAndxRequestPacket CreateCreateRequest(
ushort messageId,
ushort sessionUid,
ushort treeId,
SmbHeader_Flags_Values flags,
SmbHeader_Flags2_Values flags2,
string fileName,
NtTransactDesiredAccess desiredAccess,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
CreateFlags createFlags)
{
return new SmbNtCreateAndxRequestPacket(
this.cifsClient.CreateNtCreateAndxRequest(
messageId, sessionUid, treeId, (SmbFlags)flags, (SmbFlags2)flags2, (NtTransactFlags)createFlags,
0, desiredAccess, 0, extFileAttributes, shareAccess, createDisposition,
(Cifs.NtTransactCreateOptions)createOptions, impersonationLevel, (NtTransactSecurityFlags)0x00,
fileName, null));
}
/// <summary>
/// Constructor
/// </summary>
internal SmbServerOpen()
{
this.grantedAccess = (NtTransactDesiredAccess)0x00;
}
/// <summary>
/// to create a NtTransactCreate request packet.
/// </summary>
/// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param>
/// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is
/// accessing.</param>
/// <param name="ntTransParametersFlags">A 32-bit field containing a set of flags that modify the client
/// request. Unused bits SHOULD be set to 0 by the client when sending a message and MUST be ignored when
/// received by the server. </param>
/// <param name="rootDirectoryFID">If nonzero, this value is the FID of an opened root directory, and the Name
/// field MUST be handled as relative to the directory specified by this FID. If this value is zero the Name
/// field MUST be handled as relative to the root of the share (the TID). The FID MUST have been acquired in a
/// previous message exchange</param>
/// <param name="desiredAccess">A 32-bit field containing standard, specific, and generic access rights</param>
/// <param name="allocationSize">The client MUST set this value to the initial allocation size of the file in
/// bytes</param>
/// <param name="extFileAttributes">A 32-bit field containing encoded file attribute values and file access
/// behavior flag values.</param>
/// <param name="shareAccess">A 32-bit field that specifies how the file SHOULD be shared with other processes.
/// </param>
/// <param name="createDisposition">A 32-bit value that represents the action to take if the file already
/// exists or if the file is a new file and does not already exist.</param>
/// <param name="createOptions">ULONG A 32-bit field containing flag options to use if creating the file or
/// directory. This field MUST be set to 0 or a combination of the following possible values</param>
/// <param name="impersonationLevel">ULONG A value that indicates what security context the server SHOULD use
/// when executing the command on behalf of the client</param>
/// <param name="securityFlags">A 32-bit field containing a set of options that specify the security tracking
/// mode.</param>
/// <param name="name">The name of the file; not null-terminated. </param>
/// <param name="securityDescriptor">The security descriptor to use when requesting access to the file</param>
/// <param name="extendedAttributes">The list of extended attributes that SHOULD be applied to the new file.
/// </param>
/// <returns>a NtTransactCreate request packet</returns>
/// <exception cref="System.NullReferenceException">There is no connection in context. </exception>
public SmbNtTransactCreateRequestPacket CreateNtTransactCreateRequest(
ushort uid,
ushort treeId,
NtTransactFlags ntTransParametersFlags,
uint rootDirectoryFID,
NtTransactDesiredAccess desiredAccess,
ulong allocationSize,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
NtTransactSecurityFlags securityFlags,
string name,
RawSecurityDescriptor securityDescriptor,
FILE_FULL_EA_INFORMATION[] extendedAttributes)
{
return this.CreateNtTransactCreateRequest(this.Context.GetMessageId(this.connectionId),
uid, treeId, this.defaultParameters.Flag, this.defaultParameters.Flag2, this.defaultParameters.MaxSetupCount,
this.defaultParameters.MaxParameterCount, this.defaultParameters.MaxDataCount, ntTransParametersFlags,
rootDirectoryFID, desiredAccess, allocationSize, extFileAttributes, shareAccess,
createDisposition, createOptions, impersonationLevel, securityFlags, name,
securityDescriptor, extendedAttributes);
}
/// <summary>
/// to create a NtTransactCreate request packet.
/// </summary>
/// <param name="messageId">This field SHOULD be the multiplex ID that is used to associate a response with a
/// request.</param>
/// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param>
/// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is
/// accessing.</param>
/// <param name="flags">An 8-bit field of 1-bit flags describing various features in effect for the
/// message</param>
/// <param name="flags2">A 16-bit field of 1-bit flags that represent various features in effect for the
/// message. Unspecified bits are reserved and MUST be zero.</param>
/// <param name="maxParameterCount">The maximum number of parameter bytes that the client will accept in the
/// transaction reply. The server MUST NOT return more than this number of parameter bytes.</param>
/// <param name="maxDataCount">The maximum number of data bytes that the client will accept in the transaction
/// reply. The server MUST NOT return more than this number of data bytes.</param>
/// <param name="maxSetupCount">Maximum number of setup bytes that the client will accept in the transaction
/// reply. The server MUST NOT return more than this number of setup bytes</param>
/// <param name="ntTransParametersFlags">A 32-bit field containing a set of flags that modify the client
/// request. Unused bits SHOULD be set to 0 by the client when sending a message and MUST be ignored when
/// received by the server. </param>
/// <param name="rootDirectoryFID">If nonzero, this value is the FID of an opened root directory, and the Name
/// field MUST be handled as relative to the directory specified by this FID. If this value is zero the Name
/// field MUST be handled as relative to the root of the share (the TID). The FID MUST have been acquired in a
/// previous message exchange</param>
/// <param name="desiredAccess">A 32-bit field containing standard, specific, and generic access rights</param>
/// <param name="allocationSize">The client MUST set this value to the initial allocation size of the file in
/// bytes</param>
/// <param name="extFileAttributes">A 32-bit field containing encoded file attribute values and file access
/// behavior flag values.</param>
/// <param name="shareAccess">A 32-bit field that specifies how the file SHOULD be shared with other processes.
/// </param>
/// <param name="createDisposition">A 32-bit value that represents the action to take if the file already
/// exists or if the file is a new file and does not already exist.</param>
/// <param name="createOptions">ULONG A 32-bit field containing flag options to use if creating the file or
/// directory. This field MUST be set to 0 or a combination of the following possible values</param>
/// <param name="impersonationLevel">ULONG A value that indicates what security context the server SHOULD use
/// when executing the command on behalf of the client</param>
/// <param name="securityFlags">A 32-bit field containing a set of options that specify the security tracking mode.</param>
/// <param name="name">The name of the file; not null-terminated. </param>
/// <param name="securityDescriptor">The security descriptor to use when requesting access to the file</param>
/// <param name="extendedAttributes">The list of extended attributes that SHOULD be applied to the new file.
/// </param>
/// <returns>a NtTransactCreate request packet</returns>
public SmbNtTransactCreateRequestPacket CreateNtTransactCreateRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
byte maxSetupCount,
uint maxParameterCount,
uint maxDataCount,
NtTransactFlags ntTransParametersFlags,
uint rootDirectoryFID,
NtTransactDesiredAccess desiredAccess,
ulong allocationSize,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
NtTransactSecurityFlags securityFlags,
string name,
RawSecurityDescriptor securityDescriptor,
FILE_FULL_EA_INFORMATION[] extendedAttributes)
{
if (name == null)
{
name = string.Empty;
}
if (extendedAttributes == null)
{
extendedAttributes = new FILE_FULL_EA_INFORMATION[0];
}
SmbNtTransactCreateRequestPacket packet = new SmbNtTransactCreateRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_NT_TRANSACT,
messageId, uid, treeId, flags, flags2);
// Set Smb_Parameters
SMB_COM_NT_TRANSACT_Request_SMB_Parameters smbParameters =
new SMB_COM_NT_TRANSACT_Request_SMB_Parameters();
smbParameters.MaxSetupCount = maxSetupCount;
smbParameters.MaxParameterCount = maxParameterCount;
smbParameters.MaxDataCount = maxDataCount;
smbParameters.SetupCount = 0; // the correct count in word of the Setup is always 0.
smbParameters.Function = NtTransSubCommand.NT_TRANSACT_CREATE;
smbParameters.Setup = new ushort[0];
smbParameters.WordCount = (byte)(CifsMessageUtils.GetSize<SMB_COM_NT_TRANSACT_Request_SMB_Parameters>(
smbParameters) / NumBytesOfWord);
// Set Smb_Data
SMB_COM_NT_TRANSACT_Request_SMB_Data smbData = new SMB_COM_NT_TRANSACT_Request_SMB_Data();
// Set NT_TransParameters
NT_TRANSACT_CREATE_Request_NT_Trans_Parameters ntTransParameters =
new NT_TRANSACT_CREATE_Request_NT_Trans_Parameters();
ntTransParameters.Flags = ntTransParametersFlags;
ntTransParameters.RootDirectoryFID = rootDirectoryFID;
ntTransParameters.DesiredAccess = desiredAccess;
ntTransParameters.AllocationSize = allocationSize;
if (createDisposition == NtTransactCreateDisposition.FILE_OPEN
|| createDisposition == NtTransactCreateDisposition.NONE
|| (extFileAttributes & SMB_EXT_FILE_ATTR.ATTR_DIRECTORY)
== SMB_EXT_FILE_ATTR.ATTR_DIRECTORY)
{
ntTransParameters.AllocationSize = 0;
}
ntTransParameters.ExtFileAttributes = extFileAttributes;
ntTransParameters.ShareAccess = shareAccess;
ntTransParameters.CreateDisposition = createDisposition;
ntTransParameters.CreateOptions = createOptions;
ntTransParameters.SecurityDescriptorLength = securityDescriptor == null
? 0 : (uint)securityDescriptor.BinaryLength;
ntTransParameters.ImpersonationLevel = impersonationLevel;
ntTransParameters.SecurityFlags = securityFlags;
if ((flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) == SmbFlags2.SMB_FLAGS2_UNICODE)
{
ntTransParameters.Name = Encoding.Unicode.GetBytes(name);
}
else
{
ntTransParameters.Name = Encoding.ASCII.GetBytes(name);
}
ntTransParameters.NameLength = (uint)ntTransParameters.Name.Length;
// The size of the preceding SmbParameters part plus Header is an odd number for all cifs messages
// Use ntTransParameters field to judge whether needs to add one 16-bits align pad.
if ((flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) == SmbFlags2.SMB_FLAGS2_UNICODE &&
CifsMessageUtils.GetSize<NT_TRANSACT_CREATE_Request_NT_Trans_Parameters>(ntTransParameters) % twoBytesAlign == 0)
{
// pad 1 byte for 16-bits align:
smbData.Pad2 = new byte[1];
}
else
{
smbData.Pad2 = new byte[0];
}
// Set NT_TransData
NT_TRANSACT_CREATE_Request_NT_Trans_Data ntTransData = new NT_TRANSACT_CREATE_Request_NT_Trans_Data();
ntTransData.ExtendedAttributes = extendedAttributes;
for (int i = 0; i < ntTransData.ExtendedAttributes.Length; i++)
{
int eaNameLength = ntTransData.ExtendedAttributes[i].EaName == null
? 0 : ntTransData.ExtendedAttributes[i].EaName.Length;
int eaValueLength = ntTransData.ExtendedAttributes[i].EaValue == null
? 0 : ntTransData.ExtendedAttributes[i].EaValue.Length;
uint currentLength = (uint)(EA.FULL_EA_FIXED_SIZE + eaNameLength + eaValueLength);
uint alignPad = (fourBytesAlign - currentLength % fourBytesAlign) % fourBytesAlign;
if (i != ntTransData.ExtendedAttributes.Length - 1)
{
currentLength += alignPad;
ntTransData.ExtendedAttributes[i].NextEntryOffset = currentLength;
}
ntTransParameters.EALength += currentLength;
}
ntTransData.SecurityDescriptor = securityDescriptor;
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
packet.NtTransParameters = ntTransParameters;
packet.NtTransData = ntTransData;
packet.UpdateCountAndOffset();
return packet;
}
/// <summary>
/// to create a NtCreateAndx request packet.
/// </summary>
/// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param>
/// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is
/// accessing.</param>
/// <param name="smbParametersFlags">A 32-bit field containing a set of flags that modify the client
/// request</param>
/// <param name="rootDirectoryFID">If nonzero, this value is the File ID of an opened root directory, and the
/// FileName field MUST be handled as relative to the directory specified by this RootDirectoryFID.</param>
/// <param name="desiredAccess">A 32-bit field of flags that indicate standard, specific, and generic access
/// rights. </param>
/// <param name="allocationSize">The client MUST set this value to the initial allocation size of the file in
/// bytes.</param>
/// <param name="extFileAttributes">A 32-bit field containing encoded file attribute values and file access
/// behavior flag values</param>
/// <param name="shareAccess">A 32-bit field that specifies how the file SHOULD be shared with other
/// processes.</param>
/// <param name="createDisposition">A 32-bit value that represents the action to take if the file already
/// exists or if the file is a new file and does not already exist</param>
/// <param name="createOptions">A 32-bit field containing flag options to use if creating the file or
/// directory</param>
/// <param name="impersonationLevel">A value that indicates what security context the server SHOULD use when
/// executing the command on behalf of the client. Value names are provided for convenience only</param>
/// <param name="securityFlags">A 32-bit field containing a set of options that specify the security tracking
/// mode.</param>
/// <param name="fileName">A string that represents the fully qualified name of the file relative to the
/// supplied TID to create or truncate on the server.</param>
/// <param name="andxPacket">the andx packet.</param>
/// <returns>a NtCreateAndx request packet</returns>
/// <exception cref="System.NullReferenceException">There is no connection in context. </exception>
public SmbNtCreateAndxRequestPacket CreateNtCreateAndxRequest(
ushort uid,
ushort treeId,
NtTransactFlags smbParametersFlags,
uint rootDirectoryFID,
NtTransactDesiredAccess desiredAccess,
ulong allocationSize,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
NtTransactSecurityFlags securityFlags,
string fileName,
SmbPacket andxPacket)
{
return this.CreateNtCreateAndxRequest(this.Context.GetMessageId(this.connectionId),
uid, treeId, this.defaultParameters.Flag, this.defaultParameters.Flag2, smbParametersFlags, rootDirectoryFID,
desiredAccess, allocationSize, extFileAttributes, shareAccess, createDisposition,
createOptions, impersonationLevel, securityFlags, fileName, andxPacket);
}
/// <summary>
/// to create a NtCreateAndx request packet.
/// </summary>
/// <param name="messageId">This field SHOULD be the multiplex ID that is used to associate a response with a
/// request.</param>
/// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param>
/// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is
/// accessing.</param>
/// <param name="flags">An 8-bit field of 1-bit flags describing various features in effect for the
/// message</param>
/// <param name="flags2">A 16-bit field of 1-bit flags that represent various features in effect for the
/// message. Unspecified bits are reserved and MUST be zero.</param>
/// <param name="smbParametersFlags">A 32-bit field containing a set of flags that modify the client
/// request</param>
/// <param name="rootDirectoryFID">If nonzero, this value is the File ID of an opened root directory, and the
/// FileName field MUST be handled as relative to the directory specified by this RootDirectoryFID.</param>
/// <param name="desiredAccess">A 32-bit field of flags that indicate standard, specific, and generic access
/// rights. </param>
/// <param name="allocationSize">The client MUST set this value to the initial allocation size of the file in
/// bytes.</param>
/// <param name="extFileAttributes">A 32-bit field containing encoded file attribute values and file access
/// behavior flag values</param>
/// <param name="shareAccess">A 32-bit field that specifies how the file SHOULD be shared with other
/// processes.</param>
/// <param name="createDisposition">A 32-bit value that represents the action to take if the file already
/// exists or if the file is a new file and does not already exist</param>
/// <param name="createOptions">A 32-bit field containing flag options to use if creating the file or
/// directory</param>
/// <param name="impersonationLevel">A value that indicates what security context the server SHOULD use when
/// executing the command on behalf of the client. Value names are provided for convenience only</param>
/// <param name="securityFlags">A 32-bit field containing a set of options that specify the security tracking
/// mode.</param>
/// <param name="fileName">A string that represents the fully qualified name of the file relative to the
/// supplied TID to create or truncate on the server.</param>
/// <param name="andxPacket">the andx packet.</param>
/// <returns>a NtCreateAndx request packet</returns>
public SmbNtCreateAndxRequestPacket CreateNtCreateAndxRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
NtTransactFlags smbParametersFlags,
uint rootDirectoryFID,
NtTransactDesiredAccess desiredAccess,
ulong allocationSize,
SMB_EXT_FILE_ATTR extFileAttributes,
NtTransactShareAccess shareAccess,
NtTransactCreateDisposition createDisposition,
NtTransactCreateOptions createOptions,
NtTransactImpersonationLevel impersonationLevel,
NtTransactSecurityFlags securityFlags,
string fileName,
SmbPacket andxPacket)
{
if (fileName == null)
{
fileName = string.Empty;
}
SmbNtCreateAndxRequestPacket packet = new SmbNtCreateAndxRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_NT_CREATE_ANDX,
messageId, uid, treeId, flags, flags2);
SMB_COM_NT_CREATE_ANDX_Request_SMB_Parameters smbParameters =
new SMB_COM_NT_CREATE_ANDX_Request_SMB_Parameters();
if (andxPacket == null)
{
smbParameters.AndXCommand = SmbCommand.SMB_COM_NO_ANDX_COMMAND;
}
else
{
smbParameters.AndXCommand = andxPacket.SmbHeader.Command;
}
smbParameters.AndXReserved = 0;
smbParameters.Reserved = 0;
smbParameters.Flags = (uint)smbParametersFlags;
smbParameters.RootDirectoryFID = rootDirectoryFID;
smbParameters.DesiredAccess = (uint)desiredAccess;
smbParameters.AllocationSize = allocationSize;
smbParameters.ExtFileAttributes = (uint)extFileAttributes;
smbParameters.ShareAccess = (uint)shareAccess;
smbParameters.CreateDisposition = (uint)createDisposition;
smbParameters.CreateOptions = (uint)createOptions;
smbParameters.ImpersonationLevel = (uint)impersonationLevel;
smbParameters.SecurityFlags = (byte)securityFlags;
smbParameters.WordCount = (byte)(Marshal.SizeOf(smbParameters) / NumBytesOfWord);
SMB_COM_NT_CREATE_ANDX_Request_SMB_Data smbData = new SMB_COM_NT_CREATE_ANDX_Request_SMB_Data();
// The size of the preceding SmbParameters part plus Header part is an odd number for all cifs messages
// Use Name field to judge whether needs to add one 16-bits align pad.
if ((flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) == SmbFlags2.SMB_FLAGS2_UNICODE)
{
// if Unicode, add 1 byte pad for align on 16-bits.
smbData.Pad = new byte[1];
smbData.FileName = CifsMessageUtils.ToSmbStringBytes(fileName, true);
smbParameters.NameLength = (ushort)(smbData.FileName.Length);
}
else
{
smbData.Pad = new byte[0];
smbData.FileName = CifsMessageUtils.ToSmbStringBytes(fileName, false);
smbParameters.NameLength = (ushort)smbData.FileName.Length;
}
smbData.ByteCount = (ushort)(smbData.Pad.Length + smbData.FileName.Length);
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
packet.AndxPacket = andxPacket;
return packet;
}
/// <summary>
/// Constructor
/// </summary>
internal SmbServerOpen()
{
this.grantedAccess = (NtTransactDesiredAccess)0x00;
}
/// <summary>
/// Create File, named pipe, directory. One transport can only create one file.
/// </summary>
/// <param name="fileName">The file, namedpipe, directory name</param>
/// <param name="desiredAccess">The desired access</param>
/// <param name="impersonationLevel">The impersonation level</param>
/// <param name="fileAttribute">The file attribute, this field is only valid when create file.
/// </param>
/// <param name="createDisposition">Defines the action the server MUST take if the file that is
/// specified in the name field already exists</param>
/// <param name="createOption">Specifies the options to be applied when creating or opening the file</param>
private void InternalCreate(string fileName, NtTransactDesiredAccess desiredAccess,
NtTransactImpersonationLevel impersonationLevel, SMB_EXT_FILE_ATTR fileAttribute,
NtTransactCreateDisposition createDisposition, NtTransactCreateOptions createOption)
{
SmbNtCreateAndxRequestPacket request = smbClient.CreateCreateRequest(
this.treeId,
fileName,
desiredAccess,
fileAttribute,
NtTransactShareAccess.NONE,
createDisposition,
createOption,
impersonationLevel,
CreateFlags.NT_CREATE_REQUEST_EXTENDED_RESPONSE);
if (this.isSignRequired)
{
request.Sign(this.NextSequenceNumber, this.sessionKey);
}
uint status = 0;
SmbNtCreateAndxResponsePacket response =
this.SendAndExpectSmbPacket(request, internalTimeout, out status) as SmbNtCreateAndxResponsePacket;
if (status != 0)
{
throw new InvalidOperationException("Create Failed. ErrorCode: " + status);
}
this.fid = response.SmbParameters.FID;
}