internal static TransactionTransactNamedPipeResponse GetSubcommandResponse(SMBHeader header, TransactionTransactNamedPipeRequest subcommand, NamedPipeShare share, StateObject state)
{
string openedFilePath = state.GetOpenedFilePath(subcommand.FID);
if (openedFilePath == null)
{
header.Status = NTStatus.STATUS_INVALID_HANDLE;
return(null);
}
TransactionTransactNamedPipeResponse response = new TransactionTransactNamedPipeResponse();
RemoteService service = share.GetService(openedFilePath);
if (service != null)
{
RPCPDU rpcRequest = RPCPDU.GetPDU(subcommand.WriteData);
RPCPDU rpcReply = RemoteServiceHelper.GetRPCReply(rpcRequest, service);
response.ReadData = rpcReply.GetBytes();
return(response);
}
// This code should not execute unless the request sequence is invalid
header.Status = NTStatus.STATUS_INVALID_SMB;
return(null);
}
public override void Write(byte[] buffer, int offset, int count)
{
// [MC-CIFS] In message mode, the system treats the bytes read or written in each I/O operation to the pipe as a message unit.
RPCPDU rpcRequest = RPCPDU.GetPDU(buffer, offset);
ProcessRPCRequest(rpcRequest);
}
public static List <string> ListShares(INtFileStore namedPipeShare, ShareType?shareType)
{
NamedPipeHelper.BindPipe(namedPipeShare, ServerService.ServicePipeName, ServerService.ServiceInterfaceGuid, ServerService.ServiceVersion, out NtHandle? pipeHandle, out int maxTransmitFragmentSize).IsSuccessElseThrow();
NetrShareEnumRequest shareEnumRequest = new NetrShareEnumRequest
{
InfoStruct = new ShareEnum
{
Level = 1,
Info = new ShareInfo1Container()
},
PreferedMaximumLength = uint.MaxValue,
ServerName = "*"
};
byte[] data = shareEnumRequest.GetBytes();
RequestPDU requestPdu = new RequestPDU
{
Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment,
DataRepresentation =
{
CharacterFormat = CharacterFormat.ASCII,
ByteOrder = ByteOrder.LittleEndian,
FloatingPointRepresentation = FloatingPointRepresentation.IEEE
},
OpNum = (ushort)ServerServiceOpName.NetrShareEnum,
Data = data,
AllocationHint = (uint)data.Length
};
byte[] input = requestPdu.GetBytes();
namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out byte[]? output, maxTransmitFragmentSize);
if (!(RPCPDU.GetPDU(output, 0) is ResponsePDU responsePdu))
{
throw new NtStatusException(NTStatus.STATUS_NOT_SUPPORTED);
}
byte[] responseData = responsePdu.Data;
while ((responsePdu.Flags & PacketFlags.LastFragment) == 0)
{
namedPipeShare.ReadFile(out output, pipeHandle, 0, maxTransmitFragmentSize);
if (!(RPCPDU.GetPDU(output, 0) is ResponsePDU responsePdu2))
{
throw new NtStatusException(NTStatus.STATUS_NOT_SUPPORTED);
}
responseData = ByteUtils.Concatenate(responseData, responsePdu2.Data);
}
namedPipeShare.CloseFile(pipeHandle);
NetrShareEnumResponse shareEnumResponse = new NetrShareEnumResponse(responseData);
if (shareEnumResponse.InfoStruct.Info is ShareInfo1Container shareInfo1 && shareInfo1.Entries != null)
{
return((from entry in shareInfo1.Entries where !shareType.HasValue || shareType.Value == entry.ShareType.ShareType select entry.NetName.Value).ToList());
}
throw new NtStatusException(shareEnumResponse.Result == Win32Error.ERROR_ACCESS_DENIED ? NTStatus.STATUS_ACCESS_DENIED : NTStatus.STATUS_NOT_SUPPORTED);
}
public override void Write(byte[] buffer, int offset, int count)
{
int lengthOfPDUs = 0;
do
{
RPCPDU rpcRequest = RPCPDU.GetPDU(buffer, offset);
lengthOfPDUs += rpcRequest.FragmentLength;
RPCPDU rpcReply = RemoteServiceHelper.GetRPCReply(rpcRequest, m_service);
byte[] replyData = rpcReply.GetBytes();
Append(replyData);
}while (lengthOfPDUs < count);
}
public static NTStatus ExecuteCall <I, O>(INTFileStore namedPipeShare, object pipeHandle, ushort OpNum, I inputArgs, out O outputData) where I : IRPCRequest
{
byte[] output;
NTStatus status;
outputData = default(O);
RequestPDU requestPDU = new RequestPDU();
requestPDU.Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment;
requestPDU.DataRepresentation.CharacterFormat = CharacterFormat.ASCII;
requestPDU.DataRepresentation.ByteOrder = ByteOrder.LittleEndian;
requestPDU.DataRepresentation.FloatingPointRepresentation = FloatingPointRepresentation.IEEE;
requestPDU.OpNum = OpNum;
requestPDU.Data = inputArgs.GetBytes();
requestPDU.AllocationHint = (uint)requestPDU.Data.Length;
byte[] input = requestPDU.GetBytes();
int maxOutputLength = MaxTransmitFragmentSize;
status = namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out output, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
ResponsePDU responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(status);
}
byte[] responseData = responsePDU.Data;
while ((responsePDU.Flags & PacketFlags.LastFragment) == 0)
{
status = namedPipeShare.ReadFile(out output, pipeHandle, 0, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(status);
}
responseData = ByteUtils.Concatenate(responseData, responsePDU.Data);
}
outputData = (O)Activator.CreateInstance(typeof(O), new object[] { responseData });
return(NTStatus.STATUS_SUCCESS);
}
public static NTStatus BindPipe(INTFileStore namedPipeShare, string pipeName, Guid interfaceGuid, uint interfaceVersion, out object pipeHandle, out int maxTransmitFragmentSize)
{
maxTransmitFragmentSize = 0;
FileStatus fileStatus;
NTStatus status = namedPipeShare.CreateFile(out pipeHandle, out fileStatus, pipeName, (AccessMask)(FileAccessMask.FILE_READ_DATA | FileAccessMask.FILE_WRITE_DATA), 0, ShareAccess.Read | ShareAccess.Write, CreateDisposition.FILE_OPEN, 0, null);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
BindPDU bindPDU = new BindPDU();
bindPDU.Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment;
bindPDU.DataRepresentation.CharacterFormat = CharacterFormat.ASCII;
bindPDU.DataRepresentation.ByteOrder = ByteOrder.LittleEndian;
bindPDU.DataRepresentation.FloatingPointRepresentation = FloatingPointRepresentation.IEEE;
bindPDU.MaxTransmitFragmentSize = 5680;
bindPDU.MaxReceiveFragmentSize = 5680;
ContextElement serviceContext = new ContextElement();
serviceContext.AbstractSyntax = new SyntaxID(interfaceGuid, interfaceVersion);
serviceContext.TransferSyntaxList.Add(new SyntaxID(RemoteServiceHelper.NDRTransferSyntaxIdentifier, RemoteServiceHelper.NDRTransferSyntaxVersion));
bindPDU.ContextList.Add(serviceContext);
byte[] input = bindPDU.GetBytes();
byte[] output;
status = namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out output, 4096);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
BindAckPDU bindAckPDU = RPCPDU.GetPDU(output, 0) as BindAckPDU;
if (bindAckPDU == null)
{
return(NTStatus.STATUS_NOT_SUPPORTED);
}
maxTransmitFragmentSize = bindAckPDU.MaxTransmitFragmentSize;
return(NTStatus.STATUS_SUCCESS);
}
public static NTStatus BindPipe(INtFileStore namedPipeShare, string pipeName, Guid interfaceGuid, uint interfaceVersion, out NtHandle?pipeHandle, out int maxTransmitFragmentSize)
{
maxTransmitFragmentSize = 0;
namedPipeShare.CreateFile(out pipeHandle, out _, pipeName, (AccessMask)(FileAccessMask.FILE_READ_DATA | FileAccessMask.FILE_WRITE_DATA), 0, ShareAccess.Read | ShareAccess.Write, CreateDisposition.FILE_OPEN, 0, null);
BindPDU bindPdu = new BindPDU
{
Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment,
DataRepresentation =
{
CharacterFormat = CharacterFormat.ASCII,
ByteOrder = ByteOrder.LittleEndian,
FloatingPointRepresentation = FloatingPointRepresentation.IEEE
},
MaxTransmitFragmentSize = 5680,
MaxReceiveFragmentSize = 5680
};
ContextElement serviceContext = new ContextElement
{
AbstractSyntax = new SyntaxID(interfaceGuid, interfaceVersion)
};
serviceContext.TransferSyntaxList.Add(new SyntaxID(RemoteServiceHelper.NDRTransferSyntaxIdentifier, RemoteServiceHelper.NDRTransferSyntaxVersion));
bindPdu.ContextList.Add(serviceContext);
byte[] input = bindPdu.GetBytes();
namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out byte[]? output, 4096);
if (!(RPCPDU.GetPDU(output, 0) is BindAckPDU bindAckPDU))
{
return(NTStatus.STATUS_NOT_SUPPORTED);
}
maxTransmitFragmentSize = bindAckPDU.MaxTransmitFragmentSize;
return(NTStatus.STATUS_SUCCESS);
}
public static uint PerformWrite(SMBHeader header, object share, ushort FID, ulong offset, byte[] data, StateObject state)
{
OpenedFileObject openedFile = state.GetOpenedFileObject(FID);
if (openedFile == null)
{
header.Status = NTStatus.STATUS_INVALID_HANDLE;
return(0);
}
string openedFilePath = openedFile.Path;
if (share is NamedPipeShare)
{
RemoteService service = ((NamedPipeShare)share).GetService(openedFilePath);
if (service != null)
{
RPCPDU rpcRequest = RPCPDU.GetPDU(data);
RPCPDU rpcReply = RemoteServiceHelper.GetRPCReply(rpcRequest, service);
byte[] replyData = rpcReply.GetBytes();
state.StoreNamedPipeReply(FID, replyData);
return((uint)data.Length);
}
// This code should not execute unless the SMB request (sequence) is invalid
header.Status = NTStatus.STATUS_INVALID_SMB;
return(0);
}
else // FileSystemShare
{
FileSystemShare fileSystemShare = (FileSystemShare)share;
IFileSystem fileSystem = fileSystemShare.FileSystem;
if (openedFile.IsSequentialAccess && openedFile.Cache.Length > 0)
{
openedFile.Cache = new byte[0]; // Empty cache
}
try
{
Stream stream = fileSystem.OpenFile(openedFilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
stream.Seek((long)offset, SeekOrigin.Begin);
stream.Write(data, 0, data.Length);
stream.Close();
return((uint)data.Length);
}
catch (IOException ex)
{
ushort errorCode = IOExceptionHelper.GetWin32ErrorCode(ex);
if (errorCode == (ushort)Win32Error.ERROR_DISK_FULL)
{
header.Status = NTStatus.STATUS_DISK_FULL;
return(0);
}
else if (errorCode == (ushort)Win32Error.ERROR_SHARING_VIOLATION)
{
// Returning STATUS_SHARING_VIOLATION is undocumented but apparently valid
header.Status = NTStatus.STATUS_SHARING_VIOLATION;
return(0);
}
else
{
header.Status = NTStatus.STATUS_DATA_ERROR;
return(0);
}
}
catch (ArgumentOutOfRangeException)
{
header.Status = NTStatus.STATUS_DATA_ERROR;
return(0);
}
catch (UnauthorizedAccessException)
{
// The user may have tried to write to a readonly file
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(0);
}
}
}
public static List <string> ListShares(INTFileStore namedPipeShare, ShareType?shareType, out NTStatus status)
{
object pipeHandle;
int maxTransmitFragmentSize;
status = NamedPipeHelper.BindPipe(namedPipeShare, ServerService.ServicePipeName, ServerService.ServiceInterfaceGuid, ServerService.ServiceVersion, out pipeHandle, out maxTransmitFragmentSize);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
NetrShareEnumRequest shareEnumRequest = new NetrShareEnumRequest();
shareEnumRequest.InfoStruct = new ShareEnum();
shareEnumRequest.InfoStruct.Level = 1;
shareEnumRequest.InfoStruct.Info = new ShareInfo1Container();
shareEnumRequest.PreferedMaximumLength = UInt32.MaxValue;
shareEnumRequest.ServerName = "*";
RequestPDU requestPDU = new RequestPDU();
requestPDU.Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment;
requestPDU.DataRepresentation.CharacterFormat = CharacterFormat.ASCII;
requestPDU.DataRepresentation.ByteOrder = ByteOrder.LittleEndian;
requestPDU.DataRepresentation.FloatingPointRepresentation = FloatingPointRepresentation.IEEE;
requestPDU.OpNum = (ushort)ServerServiceOpName.NetrShareEnum;
requestPDU.Data = shareEnumRequest.GetBytes();
requestPDU.AllocationHint = (uint)requestPDU.Data.Length;
byte[] input = requestPDU.GetBytes();
byte[] output;
int maxOutputLength = maxTransmitFragmentSize;
status = namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out output, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
ResponsePDU responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(null);
}
byte[] responseData = responsePDU.Data;
while ((responsePDU.Flags & PacketFlags.LastFragment) == 0)
{
status = namedPipeShare.ReadFile(out output, pipeHandle, 0, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(null);
}
responseData = ByteUtils.Concatenate(responseData, responsePDU.Data);
}
namedPipeShare.CloseFile(pipeHandle);
NetrShareEnumResponse shareEnumResponse = new NetrShareEnumResponse(responseData);
ShareInfo1Container shareInfo1 = shareEnumResponse.InfoStruct.Info as ShareInfo1Container;
if (shareInfo1 == null || shareInfo1.Entries == null)
{
if (shareEnumResponse.Result == Win32Error.ERROR_ACCESS_DENIED)
{
status = NTStatus.STATUS_ACCESS_DENIED;
}
else
{
status = NTStatus.STATUS_NOT_SUPPORTED;
}
return(null);
}
List <string> result = new List <string>();
foreach (ShareInfo1Entry entry in shareInfo1.Entries)
{
if (!shareType.HasValue || shareType.Value == entry.ShareType.ShareType)
{
result.Add(entry.NetName.Value);
}
}
return(result);
}
public static List <string> ListShares(INTFileStore namedPipeShare, ShareType?shareType, out NTStatus status)
{
object pipeHandle;
FileStatus fileStatus;
status = namedPipeShare.CreateFile(out pipeHandle, out fileStatus, ServerService.ServicePipeName, (AccessMask)(FileAccessMask.FILE_READ_DATA | FileAccessMask.FILE_WRITE_DATA), 0, ShareAccess.FILE_SHARE_READ | ShareAccess.FILE_SHARE_WRITE, CreateDisposition.FILE_OPEN, 0, null);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
BindPDU bindPDU = new BindPDU();
bindPDU.Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment;
bindPDU.DataRepresentation.CharacterFormat = CharacterFormat.ASCII;
bindPDU.DataRepresentation.ByteOrder = ByteOrder.LittleEndian;
bindPDU.DataRepresentation.FloatingPointRepresentation = FloatingPointRepresentation.IEEE;
bindPDU.MaxTransmitFragmentSize = 5680;
bindPDU.MaxReceiveFragmentSize = 5680;
ContextElement serverServiceContext = new ContextElement();
serverServiceContext.AbstractSyntax = new SyntaxID(ServerService.ServiceInterfaceGuid, ServerService.ServiceVersion);
serverServiceContext.TransferSyntaxList.Add(new SyntaxID(RemoteServiceHelper.NDRTransferSyntaxIdentifier, RemoteServiceHelper.NDRTransferSyntaxVersion));
bindPDU.ContextList.Add(serverServiceContext);
byte[] input = bindPDU.GetBytes();
byte[] output;
status = namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out output, 4096);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
BindAckPDU bindAckPDU = RPCPDU.GetPDU(output, 0) as BindAckPDU;
if (bindAckPDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(null);
}
NetrShareEnumRequest shareEnumRequest = new NetrShareEnumRequest();
shareEnumRequest.InfoStruct = new ShareEnum();
shareEnumRequest.InfoStruct.Level = 1;
shareEnumRequest.InfoStruct.Info = new ShareInfo1Container();
shareEnumRequest.PreferedMaximumLength = UInt32.MaxValue;
shareEnumRequest.ServerName = "*";
RequestPDU requestPDU = new RequestPDU();
requestPDU.Flags = PacketFlags.FirstFragment | PacketFlags.LastFragment;
requestPDU.DataRepresentation.CharacterFormat = CharacterFormat.ASCII;
requestPDU.DataRepresentation.ByteOrder = ByteOrder.LittleEndian;
requestPDU.DataRepresentation.FloatingPointRepresentation = FloatingPointRepresentation.IEEE;
requestPDU.OpNum = (ushort)ServerServiceOpName.NetrShareEnum;
requestPDU.Data = shareEnumRequest.GetBytes();
requestPDU.AllocationHint = (uint)requestPDU.Data.Length;
input = requestPDU.GetBytes();
int maxOutputLength = bindAckPDU.MaxTransmitFragmentSize;
status = namedPipeShare.DeviceIOControl(pipeHandle, (uint)IoControlCode.FSCTL_PIPE_TRANSCEIVE, input, out output, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
ResponsePDU responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(null);
}
byte[] responseData = responsePDU.Data;
while ((responsePDU.Flags & PacketFlags.LastFragment) == 0)
{
status = namedPipeShare.ReadFile(out output, pipeHandle, 0, maxOutputLength);
if (status != NTStatus.STATUS_SUCCESS)
{
return(null);
}
responsePDU = RPCPDU.GetPDU(output, 0) as ResponsePDU;
if (responsePDU == null)
{
status = NTStatus.STATUS_NOT_SUPPORTED;
return(null);
}
responseData = ByteUtils.Concatenate(responseData, responsePDU.Data);
}
NetrShareEnumResponse shareEnumResponse = new NetrShareEnumResponse(responseData);
ShareInfo1Container shareInfo1 = shareEnumResponse.InfoStruct.Info as ShareInfo1Container;
if (shareInfo1 == null || shareInfo1.Entries == null)
{
if (shareEnumResponse.Result == Win32Error.ERROR_ACCESS_DENIED)
{
status = NTStatus.STATUS_ACCESS_DENIED;
}
else
{
status = NTStatus.STATUS_NOT_SUPPORTED;
}
return(null);
}
List <string> result = new List <string>();
foreach (ShareInfo1Entry entry in shareInfo1.Entries)
{
if (!shareType.HasValue || shareType.Value == entry.ShareType.ShareType)
{
result.Add(entry.NetName.Value);
}
}
return(result);
}