/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void CheckStatus(ServerMessageBlock req, ServerMessageBlock resp
)
{
resp.ErrorCode = SmbException.GetStatusByCode(resp.ErrorCode);
switch (resp.ErrorCode)
{
case NtStatus.NtStatusOk:
{
break;
}
case NtStatus.NtStatusAccessDenied:
case NtStatus.NtStatusWrongPassword:
case NtStatus.NtStatusLogonFailure:
case NtStatus.NtStatusAccountRestriction:
case NtStatus.NtStatusInvalidLogonHours:
case NtStatus.NtStatusInvalidWorkstation:
case NtStatus.NtStatusPasswordExpired:
case NtStatus.NtStatusAccountDisabled:
case NtStatus.NtStatusAccountLockedOut:
case NtStatus.NtStatusTrustedDomainFailure:
{
throw new SmbAuthException(resp.ErrorCode);
}
case NtStatus.NtStatusPathNotCovered:
{
if (req.Auth == null)
{
throw new SmbException(resp.ErrorCode, null);
}
DfsReferral dr = GetDfsReferrals(req.Auth, req.Path, 1);
if (dr == null)
{
throw new SmbException(resp.ErrorCode, null);
}
SmbFile.Dfs.Insert(req.Path, dr);
throw dr;
}
case unchecked ((int)(0x80000005)):
{
break;
}
case NtStatus.NtStatusMoreProcessingRequired:
{
break;
}
default:
{
throw new SmbException(resp.ErrorCode, null);
}
}
if (resp.VerifyFailed)
{
throw new SmbException("Signature verification failed.");
}
}
internal AndXServerMessageBlock(ServerMessageBlock andx)
{
if (andx != null)
{
this.Andx = andx;
_andxCommand = andx.Command;
}
}
internal SmbComTreeConnectAndX(SmbSession session, string path, string service, ServerMessageBlock
andx) : base(andx)
{
this._session = session;
this.path = path;
this._service = service;
Command = SmbComTreeConnectAndx;
}
internal AndXServerMessageBlock(ServerMessageBlock andx)
{
if (andx != null)
{
this.Andx = andx;
_andxCommand = andx.Command;
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void MakeKey(ServerMessageBlock request)
{
if (++Mid == 32000)
{
Mid = 1;
}
request.Mid = Mid;
}
internal SmbComOpenAndX(string fileName, int access, int flags, ServerMessageBlock
andx) : base(andx)
{
// flags (not the same as flags constructor argument)
// Access Mode Encoding for desiredAccess
// bit 12
// bit 14
// flags is NOT the same as flags member
Path = fileName;
Command = SmbComOpenAndx;
DesiredAccess = access & 0x3;
if (DesiredAccess == 0x3)
{
DesiredAccess = 0x2;
}
DesiredAccess |= SharingDenyNone;
DesiredAccess &= ~0x1;
// Win98 doesn't like GENERIC_READ ?! -- get Access Denied.
// searchAttributes
SearchAttributes = SmbConstants.AttrDirectory | SmbConstants.AttrHidden | SmbConstants.AttrSystem;
// fileAttributes
FileAttributes = 0;
// openFunction
if ((flags & SmbFile.OTrunc) == SmbFile.OTrunc)
{
// truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
OpenFunction = OpenFnTrunc | OpenFnCreate;
}
else
{
OpenFunction = OpenFnTrunc;
}
}
else
{
// don't truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
if ((flags & SmbFile.OExcl) == SmbFile.OExcl)
{
// fail if already exists
OpenFunction = OpenFnCreate | OpenFnFailIfExists;
}
else
{
OpenFunction = OpenFnCreate | OpenFnOpen;
}
}
else
{
OpenFunction = OpenFnOpen;
}
}
}
internal SmbComOpenAndX(string fileName, int access, int flags, ServerMessageBlock
andx) : base(andx)
{
// flags (not the same as flags constructor argument)
// Access Mode Encoding for desiredAccess
// bit 12
// bit 14
// flags is NOT the same as flags member
Path = fileName;
Command = SmbComOpenAndx;
DesiredAccess = access & 0x3;
if (DesiredAccess == 0x3)
{
DesiredAccess = 0x2;
}
DesiredAccess |= SharingDenyNone;
DesiredAccess &= ~0x1;
// Win98 doesn't like GENERIC_READ ?! -- get Access Denied.
// searchAttributes
SearchAttributes = SmbConstants.AttrDirectory | SmbConstants.AttrHidden | SmbConstants.AttrSystem;
// fileAttributes
FileAttributes = 0;
// openFunction
if ((flags & SmbFile.OTrunc) == SmbFile.OTrunc)
{
// truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
OpenFunction = OpenFnTrunc | OpenFnCreate;
}
else
{
OpenFunction = OpenFnTrunc;
}
}
else
{
// don't truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
if ((flags & SmbFile.OExcl) == SmbFile.OExcl)
{
// fail if already exists
OpenFunction = OpenFnCreate | OpenFnFailIfExists;
}
else
{
OpenFunction = OpenFnCreate | OpenFnOpen;
}
}
else
{
OpenFunction = OpenFnOpen;
}
}
}
internal virtual int WriteAndXWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
WordCount = WriteParameterWordsWireFormat(dst, start + AndxOffsetOffset + 2);
WordCount += 4;
// for command, reserved, and offset
dstIndex += WordCount + 1;
WordCount /= 2;
dst[start] = unchecked ((byte)(WordCount & unchecked (0xFF)));
ByteCount = WriteBytesWireFormat(dst, dstIndex + 2);
dst[dstIndex++] = unchecked ((byte)(ByteCount & unchecked (0xFF)));
dst[dstIndex++] = unchecked ((byte)((ByteCount >> 8) & unchecked (0xFF)));
dstIndex += ByteCount;
if (Andx == null || SmbConstants.UseBatching == false || BatchLevel >= GetBatchLimit(Andx.Command
))
{
_andxCommand = unchecked (unchecked (0xFF));
Andx = null;
dst[start + AndxCommandOffset] = unchecked (unchecked (0xFF));
dst[start + AndxReservedOffset] = unchecked (unchecked (0x00));
// dst[start + ANDX_OFFSET_OFFSET] = (byte)0x00;
// dst[start + ANDX_OFFSET_OFFSET + 1] = (byte)0x00;
dst[start + AndxOffsetOffset] = unchecked (unchecked (0xde));
dst[start + AndxOffsetOffset + 1] = unchecked (unchecked (0xde));
// andx not used; return
return(dstIndex - start);
}
Andx.BatchLevel = BatchLevel + 1;
dst[start + AndxCommandOffset] = _andxCommand;
dst[start + AndxReservedOffset] = unchecked (unchecked (0x00));
_andxOffset = dstIndex - HeaderStart;
WriteInt2(_andxOffset, dst, start + AndxOffsetOffset);
Andx.UseUnicode = UseUnicode;
if (Andx is AndXServerMessageBlock)
{
Andx.Uid = Uid;
dstIndex += ((AndXServerMessageBlock)Andx).WriteAndXWireFormat(dst, dstIndex
);
}
else
{
// the andx smb is not of type andx so lets just write it here and
// were done.
int andxStart = dstIndex;
Andx.WordCount = Andx.WriteParameterWordsWireFormat(dst, dstIndex);
dstIndex += Andx.WordCount + 1;
Andx.WordCount /= 2;
dst[andxStart] = unchecked ((byte)(Andx.WordCount & unchecked (0xFF)));
Andx.ByteCount = Andx.WriteBytesWireFormat(dst, dstIndex + 2);
dst[dstIndex++] = unchecked ((byte)(Andx.ByteCount & unchecked (0xFF)));
dst[dstIndex++] = unchecked ((byte)((Andx.ByteCount >> 8) & unchecked (0xFF)
));
dstIndex += Andx.ByteCount;
}
return(dstIndex - start);
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void DoRecv(Response response)
{
ServerMessageBlock resp = (ServerMessageBlock)response;
resp.UseUnicode = UseUnicode;
resp.ExtendedSecurity = (Capabilities & SmbConstants.CapExtendedSecurity) == SmbConstants.CapExtendedSecurity;
lock (Buf)
{
Array.Copy(Sbuf, 0, Buf, 0, 4 + SmbConstants.HeaderLength);
int size = Encdec.Dec_uint16be(Buf, 2) & 0xFFFF;
if (size < (SmbConstants.HeaderLength + 1) || (4 + size) > RcvBufSize)
{
throw new IOException("Invalid payload size: " + size);
}
int errorCode = Encdec.Dec_uint32le(Buf, 9) & unchecked ((int)(0xFFFFFFFF));
if (resp.Command == ServerMessageBlock.SmbComReadAndx && (errorCode == 0 || errorCode
== unchecked ((int)(0x80000005))))
{
// overflow indicator normal for pipe
SmbComReadAndXResponse r = (SmbComReadAndXResponse)resp;
int off = SmbConstants.HeaderLength;
Readn(In, Buf, 4 + off, 27);
off += 27;
resp.Decode(Buf, 4);
int pad = r.DataOffset - off;
if (r.ByteCount > 0 && pad > 0 && pad < 4)
{
Readn(In, Buf, 4 + off, pad);
}
if (r.DataLength > 0)
{
Readn(In, r.B, r.Off, r.DataLength);
}
}
else
{
Readn(In, Buf, 4 + 32, size - 32);
resp.Decode(Buf, 4);
if (resp is SmbComTransactionResponse)
{
((SmbComTransactionResponse)resp).Current();
}
}
if (Digest != null && resp.ErrorCode == 0)
{
Digest.Verify(Buf, 4, resp);
}
if (Log.Level >= 4)
{
Log.WriteLine(response);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Buf, 4, size);
}
}
}
}
internal SmbComTreeConnectAndX(SmbSession session,
string path,
string service,
ServerMessageBlock andx) : base(andx)
{
this._session = session;
this.path = path;
this._service = service;
Command = SmbComTreeConnectAndx;
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void TreeConnect(ServerMessageBlock andx,
ServerMessageBlock andxResponse)
{
lock (Session.Transport())
{
string unc;
while (ConnectionState != 0)
{
if (ConnectionState == 2 || ConnectionState == 3)
{
// connected or disconnecting
return;
}
try
{
Runtime.Wait(Session.transport);
}
catch (Exception ie)
{
throw new SmbException(ie.Message, ie);
}
}
ConnectionState = 1;
// trying ...
try
{
Session.transport.Connect();
unc = "\\\\" + Session.transport.TconHostName + '\\' + Share;
Service = Service0;
if (Session.transport.Log.Level >= 4)
{
Session.transport.Log.WriteLine(
"treeConnect: unc=" + unc
+ ",service=" + Service);
}
SmbComTreeConnectAndXResponse response
= new SmbComTreeConnectAndXResponse(andxResponse);
SmbComTreeConnectAndX request
= new SmbComTreeConnectAndX(Session, unc, Service, andx);
Session.Send(request, response);
Tid = response.Tid;
Service = response.Service;
InDfs = response.ShareIsInDfs;
TreeNum = _treeConnCounter++;
ConnectionState = 2;
}
catch (SmbException se)
{
// connected
TreeDisconnect(true);
ConnectionState = 0;
throw;
}
}
}
internal SmbComWriteAndX(int fid, long offset, int remaining, byte[] b, int off,
int len, ServerMessageBlock andx) : base(andx)
{
this._fid = fid;
this._offset = offset;
this._remaining = remaining;
this._b = b;
this._off = off;
_dataLength = len;
Command = SmbComWriteAndx;
}
internal SmbComWriteAndX(int fid, long offset, int remaining, byte[] b, int off,
int len, ServerMessageBlock andx) : base(andx)
{
this._fid = fid;
this._offset = offset;
this._remaining = remaining;
this._b = b;
this._off = off;
_dataLength = len;
Command = SmbComWriteAndx;
}
internal virtual int Decode(byte[] buf, int bi)
{
Allow = buf[bi++] == unchecked (unchecked (0x00));
Flags = buf[bi++] & unchecked (0xFF);
int size = ServerMessageBlock.ReadInt2(buf, bi);
bi += 2;
Access = ServerMessageBlock.ReadInt4(buf, bi);
bi += 4;
Sid = new Sid(buf, bi);
return(size);
}
/// <exception cref="System.IO.IOException"></exception>
public virtual int Decode(byte[] buffer, int bufferIndex, int len)
{
int start = bufferIndex;
bufferIndex++;
// revision
bufferIndex++;
Type = ServerMessageBlock.ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
ServerMessageBlock.ReadInt4(buffer, bufferIndex);
// offset to owner sid
bufferIndex += 4;
ServerMessageBlock.ReadInt4(buffer, bufferIndex);
// offset to group sid
bufferIndex += 4;
ServerMessageBlock.ReadInt4(buffer, bufferIndex);
// offset to sacl
bufferIndex += 4;
int daclOffset = ServerMessageBlock.ReadInt4(buffer, bufferIndex);
bufferIndex = start + daclOffset;
bufferIndex++;
// revision
bufferIndex++;
int size = ServerMessageBlock.ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
int numAces = ServerMessageBlock.ReadInt4(buffer, bufferIndex);
bufferIndex += 4;
if (numAces > 4096)
{
throw new IOException("Invalid SecurityDescriptor");
}
if (daclOffset != 0)
{
Aces = new Ace[numAces];
for (int i = 0; i < numAces; i++)
{
Aces[i] = new Ace();
bufferIndex += Aces[i].Decode(buffer, bufferIndex);
}
}
else
{
Aces = null;
}
return(bufferIndex - start);
}
/// <summary>Performs MAC signing of the SMB.</summary>
/// <remarks>
/// Performs MAC signing of the SMB. This is done as follows.
/// The signature field of the SMB is overwritted with the sequence number;
/// The MD5 digest of the MAC signing key + the entire SMB is taken;
/// The first 8 bytes of this are placed in the signature field.
/// </remarks>
/// <param name="data">The data.</param>
/// <param name="offset">The starting offset at which the SMB header begins.</param>
/// <param name="length">The length of the SMB data starting at offset.</param>
internal virtual void Sign(byte[] data,
int offset,
int length,
ServerMessageBlock request,
ServerMessageBlock response)
{
request.SignSeq = _signSequence;
if (response != null)
{
response.SignSeq = _signSequence + 1;
response.VerifyFailed = false;
}
try
{
Update(_macSigningKey, 0, _macSigningKey.Length);
int index = offset + SmbConstants.SignatureOffset;
for (int i = 0; i < 8; i++)
{
data[index + i] = 0;
}
ServerMessageBlock.WriteInt4(_signSequence, data, index);
Update(data, offset, length);
Array.Copy(Digest(), 0, data, index, 8);
if (_bypass)
{
_bypass = false;
Array.Copy(Runtime.GetBytesForString("BSRSPYL "),
0,
data,
index,
8);
}
}
catch (Exception ex)
{
if (Log.Level > 0)
{
Runtime.PrintStackTrace(ex, Log);
}
}
finally
{
_signSequence += 2;
}
}
public Sid(byte[] src, int si)
{
Revision = src[si++];
SubAuthorityCount = src[si++];
IdentifierAuthority = new byte[6];
Array.Copy(src, si, IdentifierAuthority, 0, 6);
si += 6;
if (SubAuthorityCount > 100)
{
throw new RuntimeException("Invalid SID sub_authority_count");
}
SubAuthority = new int[SubAuthorityCount];
for (int i = 0; i < SubAuthorityCount; i++)
{
SubAuthority[i] = ServerMessageBlock.ReadInt4(src, si);
si += 4;
}
}
/// <summary>Performs MAC signature verification.</summary>
/// <remarks>
/// Performs MAC signature verification. This calculates the signature
/// of the SMB and compares it to the signature field on the SMB itself.
/// </remarks>
/// <param name="data">The data.</param>
/// <param name="offset">The starting offset at which the SMB header begins.</param>
/// <param name="length">The length of the SMB data starting at offset.</param>
internal virtual bool Verify(byte[] data, int offset, ServerMessageBlock response
)
{
Update(_macSigningKey, 0, _macSigningKey.Length);
int index = offset;
Update(data, index, SmbConstants.SignatureOffset);
index += SmbConstants.SignatureOffset;
byte[] sequence = new byte[8];
ServerMessageBlock.WriteInt4(response.SignSeq, sequence, 0);
Update(sequence, 0, sequence.Length);
index += 8;
if (response.Command == ServerMessageBlock.SmbComReadAndx)
{
SmbComReadAndXResponse raxr = (SmbComReadAndXResponse)response;
int length = response.Length - raxr.DataLength;
Update(data, index, length - SmbConstants.SignatureOffset - 8);
Update(raxr.B, raxr.Off, raxr.DataLength);
}
else
{
Update(data, index, response.Length - SmbConstants.SignatureOffset - 8);
}
byte[] signature = Digest();
for (int i = 0; i < 8; i++)
{
if (signature[i] != data[offset + SmbConstants.SignatureOffset + i])
{
if (Log.Level >= 2)
{
Log.WriteLine("signature verification failure");
Hexdump.ToHexdump(Log, signature, 0, 8);
Hexdump.ToHexdump(Log, data, offset + SmbConstants.SignatureOffset, 8);
}
return(response.VerifyFailed = true);
}
}
return(response.VerifyFailed = false);
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal void Send(ServerMessageBlock request, ServerMessageBlock response)
{
lock (Transport())
{
if (response != null)
{
response.Received = false;
}
Expiration = Runtime.CurrentTimeMillis() + SmbConstants.SoTimeout;
SessionSetup(request, response);
if (response != null && response.Received)
{
return;
}
if (request is SmbComTreeConnectAndX)
{
SmbComTreeConnectAndX tcax = (SmbComTreeConnectAndX)request;
if (NetbiosName != null && tcax.path.EndsWith("\\IPC$"))
{
tcax.path = "\\\\" + NetbiosName + "\\IPC$";
}
}
request.Uid = Uid;
request.Auth = Auth;
try
{
transport.Send(request, response);
}
catch (SmbException se)
{
if (request is SmbComTreeConnectAndX)
{
Logoff(true);
}
request.Digest = null;
throw;
}
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void DoSend(ServerMessageBlock request)
{
lock (Buf)
{
ServerMessageBlock smb = request;
int n = smb.Encode(Buf, 4);
Encdec.Enc_uint32be(n & 0xFFFF, Buf, 0);
if (Log.Level >= 4)
{
do
{
Log.WriteLine(smb);
}while (smb is AndXServerMessageBlock &&
(smb = ((AndXServerMessageBlock)smb).Andx) != null);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Buf, 4, n);
}
}
Out.Write(Buf, 0, 4 + n);
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal virtual void DoSend0(ServerMessageBlock request)
{
try
{
DoSend(request);
}
catch (IOException ioe)
{
if (Log.Level > 2)
{
Runtime.PrintStackTrace(ioe, Log);
}
try
{
Disconnect(true);
}
catch (IOException ioe2)
{
Runtime.PrintStackTrace(ioe2, Log);
}
throw;
}
}
internal SmbComTreeConnectAndXResponse(ServerMessageBlock andx) : base(andx)
{
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void ResolveDfs(ServerMessageBlock request)
{
if (!_enableDfs)
{
Connect0();
return;
}
if (request is SmbComClose)
{
return;
}
Connect0();
DfsReferral dr = Dfs.Resolve(Tree.Session.transport.TconHostName, Tree.Share, Unc
, Auth);
if (dr != null)
{
string service = null;
if (request != null)
{
switch (request.Command)
{
case ServerMessageBlock.SmbComTransaction:
case ServerMessageBlock.SmbComTransaction2:
{
switch (((SmbComTransaction)request).SubCommand & 0xFF)
{
case SmbComTransaction.Trans2GetDfsReferral:
{
break;
}
default:
{
service = "A:";
break;
}
}
break;
}
default:
{
service = "A:";
break;
}
}
}
DfsReferral start = dr;
SmbException se = null;
do
{
try
{
if (Log.Level >= 2)
{
Log.WriteLine("DFS redirect: " + dr);
}
UniAddress addr = UniAddress.GetByName(dr.Server);
SmbTransport trans = SmbTransport.GetSmbTransport(addr, Url.Port);
trans.Connect();
Tree = trans.GetSmbSession(Auth).GetSmbTree(dr.Share, service);
if (dr != start && dr.Key != null)
{
dr.Map.Put(dr.Key, dr);
}
se = null;
break;
}
catch (IOException ioe)
{
if (ioe is SmbException)
{
se = (SmbException)ioe;
}
else
{
se = new SmbException(dr.Server, ioe);
}
}
dr = dr.Next;
}
while (dr != start);
if (se != null)
{
throw se;
}
if (Log.Level >= 3)
{
Log.WriteLine(dr);
}
_dfsReferral = dr;
if (dr.PathConsumed < 0)
{
dr.PathConsumed = 0;
}
else
{
if (dr.PathConsumed > Unc.Length)
{
dr.PathConsumed = Unc.Length;
}
}
string dunc = Runtime.Substring(Unc, dr.PathConsumed);
if (dunc.Equals(string.Empty))
{
dunc = "\\";
}
if (!dr.Path.Equals(string.Empty))
{
dunc = "\\" + dr.Path + dunc;
}
Unc = dunc;
if (request != null && request.Path != null && request.Path.EndsWith("\\") && dunc
.EndsWith("\\") == false)
{
dunc += "\\";
}
if (request != null)
{
request.Path = dunc;
request.Flags2 |= SmbConstants.Flags2ResolvePathsInDfs;
}
}
else
{
if (Tree.InDomainDfs && !(request is NtTransQuerySecurityDesc) && !(request is SmbComClose
) && !(request is SmbComFindClose2))
{
throw new SmbException(NtStatus.NtStatusNotFound, false);
}
if (request != null)
{
request.Flags2 &= ~SmbConstants.Flags2ResolvePathsInDfs;
}
}
}
/// <exception cref="System.IO.IOException"></exception>
private void Negotiate(int port, ServerMessageBlock resp)
{
lock (Sbuf)
{
if (port == 139)
{
Ssn139();
}
else
{
if (port == -1)
{
port = SmbConstants.DefaultPort;
}
// 445
Socket = new SocketEx(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
//TCPローカルポートは、毎回空いているものを使う。
//https://blogs.msdn.microsoft.com/dgorti/2005/09/18/only-one-usage-of-each-socket-address-protocolnetwork-addressport-is-normally-permitted/
Socket.Bind(new IPEndPoint(LocalAddr, 0));
Socket.Connect(new IPEndPoint(IPAddress.Parse(Address.GetHostAddress()),
port), // <- 445
SmbConstants.ConnTimeout);
Socket.SoTimeOut = SmbConstants.SoTimeout;
Out = Socket.GetOutputStream();
In = Socket.GetInputStream();
}
if (++Mid == 32000)
{
Mid = 1;
}
NegotiateRequest.Mid = Mid;
int n = NegotiateRequest.Encode(Sbuf, 4);
Encdec.Enc_uint32be(n & 0xFFFF, Sbuf, 0);
if (Log.Level >= 4)
{
Log.WriteLine(NegotiateRequest);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
Out.Write(Sbuf, 0, 4 + n);
Out.Flush();
if (PeekKey() == null)
{
throw new IOException("transport closed in negotiate");
}
int size = Encdec.Dec_uint16be(Sbuf, 2) & 0xFFFF;
if (size < 33 || (4 + size) > Sbuf.Length)
{
throw new IOException("Invalid payload size: " + size);
}
Readn(In, Sbuf, 4 + 32, size - 32);
resp.Decode(Sbuf, 4);
if (Log.Level >= 4)
{
Log.WriteLine(resp);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void Send(ServerMessageBlock request, ServerMessageBlock response
)
{
lock (Session.Transport())
{
if (response != null)
{
response.Received = false;
}
TreeConnect(request, response);
if (request == null || (response != null && response.Received))
{
return;
}
if (Service.Equals("A:") == false)
{
switch (request.Command)
{
case ServerMessageBlock.SmbComOpenAndx:
case ServerMessageBlock.SmbComNtCreateAndx:
case ServerMessageBlock.SmbComReadAndx:
case ServerMessageBlock.SmbComWriteAndx:
case ServerMessageBlock.SmbComClose:
case ServerMessageBlock.SmbComTreeDisconnect:
{
break;
}
case ServerMessageBlock.SmbComTransaction:
case ServerMessageBlock.SmbComTransaction2:
{
switch (((SmbComTransaction)request).SubCommand & unchecked(0xFF))
{
case SmbComTransaction.NetShareEnum:
case SmbComTransaction.NetServerEnum2:
case SmbComTransaction.NetServerEnum3:
case SmbComTransaction.TransPeekNamedPipe:
case SmbComTransaction.TransWaitNamedPipe:
case SmbComTransaction.TransCallNamedPipe:
case SmbComTransaction.TransTransactNamedPipe:
case SmbComTransaction.Trans2GetDfsReferral:
{
break;
}
default:
{
throw new SmbException("Invalid operation for " + Service + " service");
}
}
break;
}
default:
{
throw new SmbException("Invalid operation for " + Service + " service" + request);
}
}
}
request.Tid = Tid;
if (InDfs && !Service.Equals("IPC") && !string.IsNullOrEmpty(request.Path))
{
request.Flags2 = SmbConstants.Flags2ResolvePathsInDfs;
request.Path = '\\' + Session.Transport().TconHostName + '\\' + Share + request.Path;
}
try
{
Session.Send(request, response);
}
catch (SmbException se)
{
if (se.GetNtStatus() == NtStatus.NtStatusNetworkNameDeleted)
{
TreeDisconnect(true);
}
throw;
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal void Send(ServerMessageBlock request, ServerMessageBlock response)
{
lock (Transport())
{
if (response != null)
{
response.Received = false;
}
Expiration = Runtime.CurrentTimeMillis() + SmbConstants.SoTimeout;
SessionSetup(request, response);
if (response != null && response.Received)
{
return;
}
if (request is SmbComTreeConnectAndX)
{
SmbComTreeConnectAndX tcax = (SmbComTreeConnectAndX)request;
if (NetbiosName != null && tcax.path.EndsWith("\\IPC$"))
{
tcax.path = "\\\\" + NetbiosName + "\\IPC$";
}
}
request.Uid = Uid;
request.Auth = Auth;
try
{
transport.Send(request, response);
}
catch (SmbException se)
{
if (request is SmbComTreeConnectAndX)
{
Logoff(true);
}
request.Digest = null;
throw;
}
}
}
internal SmbComNtCreateAndX(string name,
int flags,
int access,
int shareAccess,
int extFileAttributes,
int createOptions,
ServerMessageBlock andx) : base(andx)
{
// share access specified in SmbFile
// create disposition
// create options
// security flags
Path = name;
Command = SmbComNtCreateAndx;
DesiredAccess = access;
DesiredAccess |= SmbConstants.FileReadData
| SmbConstants.FileReadEa
| SmbConstants.FileReadAttributes;
// extFileAttributes
this._extFileAttributes = extFileAttributes;
// shareAccess
this._shareAccess = shareAccess;
// createDisposition
if ((flags & SmbFile.OTrunc) == SmbFile.OTrunc)
{
// truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
_createDisposition = FileOverwriteIf;
}
else
{
_createDisposition = FileOverwrite;
}
}
else
{
// don't truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
if ((flags & SmbFile.OExcl) == SmbFile.OExcl)
{
// fail if already exists
_createDisposition = FileCreate;
}
else
{
_createDisposition = FileOpenIf;
}
}
else
{
_createDisposition = FileOpen;
}
}
if ((createOptions & unchecked (0x0001)) == 0)
{
this._createOptions = createOptions | unchecked (0x0040);
}
else
{
this._createOptions = createOptions;
}
_impersonationLevel = unchecked (0x02);
// As seen on NT :~)
_securityFlags = unchecked (unchecked (0x03));
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal void SessionSetup(ServerMessageBlock andx, ServerMessageBlock andxResponse
)
{
lock (Transport())
{
INtlmContext nctx = null;
SmbException ex = null;
SmbComSessionSetupAndX request;
SmbComSessionSetupAndXResponse response;
byte[] token = new byte[0];
int state = 10;
while (ConnectionState != 0)
{
if (ConnectionState == 2 || ConnectionState == 3)
{
// connected or disconnecting
return;
}
try
{
Runtime.Wait(transport);
}
catch (Exception ie)
{
throw new SmbException(ie.Message, ie);
}
}
ConnectionState = 1;
// trying ...
try
{
transport.Connect();
if (transport.Log.Level >= 4)
{
transport.Log.WriteLine("sessionSetup: accountName=" + Auth.Username + ",primaryDomain="
+ Auth.Domain);
}
Uid = 0;
do
{
switch (state)
{
case 10:
{
if (Auth != NtlmPasswordAuthentication.Anonymous && transport.HasCapability(SmbConstants
.CapExtendedSecurity))
{
state = 20;
break;
}
request = new SmbComSessionSetupAndX(this, andx, Auth);
response = new SmbComSessionSetupAndXResponse(andxResponse);
if (transport.IsSignatureSetupRequired(Auth))
{
if (Auth.HashesExternal && NtlmPasswordAuthentication.DefaultPassword != NtlmPasswordAuthentication
.Blank)
{
transport.GetSmbSession(NtlmPasswordAuthentication.Default).GetSmbTree(LogonShare
, null).TreeConnect(null, null);
}
else
{
byte[] signingKey = Auth.GetSigningKey(transport.Server.EncryptionKey);
request.Digest = new SigningDigest(signingKey, false);
}
}
request.Auth = Auth;
try
{
transport.Send(request, response);
}
catch (SmbAuthException sae)
{
throw;
}
catch (SmbException se)
{
ex = se;
}
if (response.IsLoggedInAsGuest && Runtime.EqualsIgnoreCase("GUEST", Auth.
Username) == false && transport.Server.Security != SmbConstants.SecurityShare &&
Auth != NtlmPasswordAuthentication.Anonymous)
{
throw new SmbAuthException(NtStatus.NtStatusLogonFailure);
}
if (ex != null)
{
throw ex;
}
Uid = response.Uid;
if (request.Digest != null)
{
transport.Digest = request.Digest;
}
ConnectionState = 2;
state = 0;
break;
}
case 20:
{
if (nctx == null)
{
bool doSigning = (transport.Flags2 & SmbConstants.Flags2SecuritySignatures
) != 0;
nctx = Config.getNtlmContextFactory().create(Auth, doSigning);
}
if (SmbTransport.LogStatic.Level >= 4)
{
SmbTransport.LogStatic.WriteLine(nctx);
}
if (nctx.IsEstablished())
{
NetbiosName = nctx.GetNetbiosName();
ConnectionState = 2;
state = 0;
break;
}
try
{
token = nctx.InitSecContext(token, 0, token.Length);
}
catch (SmbException se)
{
try
{
transport.Disconnect(true);
}
catch (IOException)
{
}
Uid = 0;
throw;
}
if (token != null)
{
request = new SmbComSessionSetupAndX(this, null, token);
response = new SmbComSessionSetupAndXResponse(null);
if (transport.IsSignatureSetupRequired(Auth))
{
byte[] signingKey = nctx.GetSigningKey();
if (signingKey != null)
{
request.Digest = new SigningDigest(signingKey, true);
}
}
request.Uid = Uid;
Uid = 0;
try
{
transport.Send(request, response);
}
catch (SmbAuthException sae)
{
throw;
}
catch (SmbException se)
{
ex = se;
try
{
transport.Disconnect(true);
}
catch (Exception)
{
}
}
if (response.IsLoggedInAsGuest && Runtime.EqualsIgnoreCase("GUEST", Auth.
Username) == false)
{
throw new SmbAuthException(NtStatus.NtStatusLogonFailure);
}
if (ex != null)
{
throw ex;
}
Uid = response.Uid;
if (request.Digest != null)
{
transport.Digest = request.Digest;
}
token = response.Blob;
}
break;
}
default:
{
throw new SmbException("Unexpected session setup state: " + state);
}
}
}while (state != 0);
}
catch (SmbException se)
{
Logoff(true);
ConnectionState = 0;
throw;
}
finally
{
Runtime.NotifyAll(transport);
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void Send(ServerMessageBlock request, ServerMessageBlock response)
{
Connect();
request.Flags2 |= Flags2;
request.UseUnicode = UseUnicode;
request.Response = response;
if (request.Digest == null)
{
request.Digest = Digest;
}
try
{
if (response == null)
{
DoSend0(request);
return;
}
if (request is SmbComTransaction)
{
response.Command = request.Command;
SmbComTransaction req = (SmbComTransaction)request;
SmbComTransactionResponse resp = (SmbComTransactionResponse)response;
req.MaxBufferSize = SndBufSize;
resp.Reset();
try
{
BufferCache.GetBuffers(req, resp);
req.Current();
if (req.MoveNext())
{
SmbComBlankResponse interim = new SmbComBlankResponse();
Sendrecv(req, interim, SmbConstants.ResponseTimeout);
if (interim.ErrorCode != 0)
{
CheckStatus(req, interim);
}
req.Current();
}
else
{
MakeKey(req);
}
lock (this)
{
response.Received = false;
resp.IsReceived = false;
try
{
ResponseMap.Put(req, resp);
do
{
DoSend0(req);
}while (req.MoveNext() && req.Current() != null);
long timeout = SmbConstants.ResponseTimeout;
resp.Expiration = Runtime.CurrentTimeMillis() + timeout;
while (resp.MoveNext())
{
Runtime.Wait(this, timeout);
timeout = resp.Expiration - Runtime.CurrentTimeMillis();
if (timeout <= 0)
{
throw new TransportException(
this + " timedout waiting for response to " + req);
}
}
if (response.ErrorCode != 0)
{
CheckStatus(req, resp);
}
}
catch (Exception ie)
{
if (ie is SmbException)
{
throw;
}
else
{
throw new TransportException(ie);
}
}
finally
{
//Sharpen.Collections.Remove<Hashtable, SmbComTransaction>(response_map, req);
ResponseMap.Remove(req);
}
}
}
finally
{
BufferCache.ReleaseBuffer(req.TxnBuf);
BufferCache.ReleaseBuffer(resp.TxnBuf);
}
}
else
{
response.Command = request.Command;
Sendrecv(request, response, SmbConstants.ResponseTimeout);
}
}
catch (SmbException se)
{
throw;
}
catch (IOException ioe)
{
throw new SmbException(ioe.Message, ioe);
}
CheckStatus(request, response);
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void MakeKey(ServerMessageBlock request)
{
if (++Mid == 32000)
{
Mid = 1;
}
request.Mid = Mid;
}
internal virtual int ReadAndXWireFormat(byte[] buffer, int bufferIndex)
{
int start = bufferIndex;
WordCount = buffer[bufferIndex++];
if (WordCount != 0)
{
_andxCommand = buffer[bufferIndex];
_andxOffset = ReadInt2(buffer, bufferIndex + 2);
if (_andxOffset == 0)
{
_andxCommand = unchecked (unchecked (0xFF));
}
if (WordCount > 2)
{
ReadParameterWordsWireFormat(buffer, bufferIndex + 4);
if (Command == SmbComNtCreateAndx && ((SmbComNtCreateAndXResponse)this).IsExtended)
{
WordCount += 8;
}
}
bufferIndex = start + 1 + (WordCount * 2);
}
ByteCount = ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
if (ByteCount != 0)
{
int n;
n = ReadBytesWireFormat(buffer, bufferIndex);
bufferIndex += ByteCount;
}
if (ErrorCode != 0 || _andxCommand == unchecked (unchecked (0xFF)))
{
_andxCommand = unchecked (unchecked (0xFF));
Andx = null;
}
else
{
if (Andx == null)
{
_andxCommand = unchecked (unchecked (0xFF));
throw new RuntimeException("no andx command supplied with response");
}
bufferIndex = HeaderStart + _andxOffset;
Andx.HeaderStart = HeaderStart;
Andx.Command = _andxCommand;
Andx.ErrorCode = ErrorCode;
Andx.Flags = Flags;
Andx.Flags2 = Flags2;
Andx.Tid = Tid;
Andx.Pid = Pid;
Andx.Uid = Uid;
Andx.Mid = Mid;
Andx.UseUnicode = UseUnicode;
if (Andx is AndXServerMessageBlock)
{
bufferIndex += ((AndXServerMessageBlock)Andx).ReadAndXWireFormat(buffer
, bufferIndex);
}
else
{
buffer[bufferIndex++] = unchecked ((byte)(Andx.WordCount & unchecked (0xFF))
);
if (Andx.WordCount != 0)
{
if (Andx.WordCount > 2)
{
bufferIndex += Andx.ReadParameterWordsWireFormat(buffer, bufferIndex);
}
}
Andx.ByteCount = ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
if (Andx.ByteCount != 0)
{
Andx.ReadBytesWireFormat(buffer, bufferIndex);
bufferIndex += Andx.ByteCount;
}
}
Andx.Received = true;
}
return(bufferIndex - start);
}
/// <summary>Performs MAC signing of the SMB.</summary>
/// <remarks>
/// Performs MAC signing of the SMB. This is done as follows.
/// The signature field of the SMB is overwritted with the sequence number;
/// The MD5 digest of the MAC signing key + the entire SMB is taken;
/// The first 8 bytes of this are placed in the signature field.
/// </remarks>
/// <param name="data">The data.</param>
/// <param name="offset">The starting offset at which the SMB header begins.</param>
/// <param name="length">The length of the SMB data starting at offset.</param>
internal virtual void Sign(byte[] data, int offset, int length, ServerMessageBlock
request, ServerMessageBlock response)
{
request.SignSeq = _signSequence;
if (response != null)
{
response.SignSeq = _signSequence + 1;
response.VerifyFailed = false;
}
try
{
Update(_macSigningKey, 0, _macSigningKey.Length);
int index = offset + SmbConstants.SignatureOffset;
for (int i = 0; i < 8; i++)
{
data[index + i] = 0;
}
ServerMessageBlock.WriteInt4(_signSequence, data, index);
Update(data, offset, length);
Array.Copy(Digest(), 0, data, index, 8);
if (_bypass)
{
_bypass = false;
Array.Copy(Runtime.GetBytesForString("BSRSPYL "), 0, data, index,
8);
}
}
catch (Exception ex)
{
if (Log.Level > 0)
{
Runtime.PrintStackTrace(ex, Log);
}
}
finally
{
_signSequence += 2;
}
}
internal virtual int WriteAndXWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
WordCount = WriteParameterWordsWireFormat(dst, start + AndxOffsetOffset + 2);
WordCount += 4;
// for command, reserved, and offset
dstIndex += WordCount + 1;
WordCount /= 2;
dst[start] = unchecked((byte)(WordCount & unchecked(0xFF)));
ByteCount = WriteBytesWireFormat(dst, dstIndex + 2);
dst[dstIndex++] = unchecked((byte)(ByteCount & unchecked(0xFF)));
dst[dstIndex++] = unchecked((byte)((ByteCount >> 8) & unchecked(0xFF)));
dstIndex += ByteCount;
if (Andx == null || SmbConstants.UseBatching == false || BatchLevel >= GetBatchLimit(Andx.Command
))
{
_andxCommand = unchecked(unchecked(0xFF));
Andx = null;
dst[start + AndxCommandOffset] = unchecked(unchecked(0xFF));
dst[start + AndxReservedOffset] = unchecked(unchecked(0x00));
// dst[start + ANDX_OFFSET_OFFSET] = (byte)0x00;
// dst[start + ANDX_OFFSET_OFFSET + 1] = (byte)0x00;
dst[start + AndxOffsetOffset] = unchecked(unchecked(0xde));
dst[start + AndxOffsetOffset + 1] = unchecked(unchecked(0xde));
// andx not used; return
return dstIndex - start;
}
Andx.BatchLevel = BatchLevel + 1;
dst[start + AndxCommandOffset] = _andxCommand;
dst[start + AndxReservedOffset] = unchecked(unchecked(0x00));
_andxOffset = dstIndex - HeaderStart;
WriteInt2(_andxOffset, dst, start + AndxOffsetOffset);
Andx.UseUnicode = UseUnicode;
if (Andx is AndXServerMessageBlock)
{
Andx.Uid = Uid;
dstIndex += ((AndXServerMessageBlock)Andx).WriteAndXWireFormat(dst, dstIndex
);
}
else
{
// the andx smb is not of type andx so lets just write it here and
// were done.
int andxStart = dstIndex;
Andx.WordCount = Andx.WriteParameterWordsWireFormat(dst, dstIndex);
dstIndex += Andx.WordCount + 1;
Andx.WordCount /= 2;
dst[andxStart] = unchecked((byte)(Andx.WordCount & unchecked(0xFF)));
Andx.ByteCount = Andx.WriteBytesWireFormat(dst, dstIndex + 2);
dst[dstIndex++] = unchecked((byte)(Andx.ByteCount & unchecked(0xFF)));
dst[dstIndex++] = unchecked((byte)((Andx.ByteCount >> 8) & unchecked(0xFF)
));
dstIndex += Andx.ByteCount;
}
return dstIndex - start;
}
/// <exception cref="System.IO.IOException"></exception>
protected internal abstract void DoSend(ServerMessageBlock request);
internal virtual int ReadAndXWireFormat(byte[] buffer, int bufferIndex)
{
int start = bufferIndex;
WordCount = buffer[bufferIndex++];
if (WordCount != 0)
{
_andxCommand = buffer[bufferIndex];
_andxOffset = ReadInt2(buffer, bufferIndex + 2);
if (_andxOffset == 0)
{
_andxCommand = unchecked(unchecked(0xFF));
}
if (WordCount > 2)
{
ReadParameterWordsWireFormat(buffer, bufferIndex + 4);
if (Command == SmbComNtCreateAndx && ((SmbComNtCreateAndXResponse)this).IsExtended)
{
WordCount += 8;
}
}
bufferIndex = start + 1 + (WordCount * 2);
}
ByteCount = ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
if (ByteCount != 0)
{
int n;
n = ReadBytesWireFormat(buffer, bufferIndex);
bufferIndex += ByteCount;
}
if (ErrorCode != 0 || _andxCommand == unchecked(unchecked(0xFF)))
{
_andxCommand = unchecked(unchecked(0xFF));
Andx = null;
}
else
{
if (Andx == null)
{
_andxCommand = unchecked(unchecked(0xFF));
throw new RuntimeException("no andx command supplied with response");
}
bufferIndex = HeaderStart + _andxOffset;
Andx.HeaderStart = HeaderStart;
Andx.Command = _andxCommand;
Andx.ErrorCode = ErrorCode;
Andx.Flags = Flags;
Andx.Flags2 = Flags2;
Andx.Tid = Tid;
Andx.Pid = Pid;
Andx.Uid = Uid;
Andx.Mid = Mid;
Andx.UseUnicode = UseUnicode;
if (Andx is AndXServerMessageBlock)
{
bufferIndex += ((AndXServerMessageBlock)Andx).ReadAndXWireFormat(buffer
, bufferIndex);
}
else
{
buffer[bufferIndex++] = unchecked((byte)(Andx.WordCount & unchecked(0xFF))
);
if (Andx.WordCount != 0)
{
if (Andx.WordCount > 2)
{
bufferIndex += Andx.ReadParameterWordsWireFormat(buffer, bufferIndex);
}
}
Andx.ByteCount = ReadInt2(buffer, bufferIndex);
bufferIndex += 2;
if (Andx.ByteCount != 0)
{
Andx.ReadBytesWireFormat(buffer, bufferIndex);
bufferIndex += Andx.ByteCount;
}
}
Andx.Received = true;
}
return bufferIndex - start;
}
/// <exception cref="System.IO.IOException"></exception>
private void Negotiate(int port, ServerMessageBlock resp)
{
lock (Sbuf)
{
if (port == 139)
{
Ssn139();
}
else
{
if (port == -1)
{
port = SmbConstants.DefaultPort;
}
// 445
Socket = new SocketEx(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
if (LocalAddr != null)
{
Socket.Bind2(new IPEndPoint(LocalAddr, LocalPort));
}
Socket.Connect(new IPEndPoint(IPAddress.Parse(Address.GetHostAddress()), port), SmbConstants.ConnTimeout);
Socket.SoTimeOut = SmbConstants.SoTimeout;
Out = Socket.GetOutputStream();
In = Socket.GetInputStream();
}
if (++Mid == 32000)
{
Mid = 1;
}
NegotiateRequest.Mid = Mid;
int n = NegotiateRequest.Encode(Sbuf, 4);
Encdec.Enc_uint32be(n & 0xFFFF, Sbuf, 0);
if (Log.Level >= 4)
{
Log.WriteLine(NegotiateRequest);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
Out.Write(Sbuf, 0, 4 + n);
Out.Flush();
if (PeekKey() == null)
{
throw new IOException("transport closed in negotiate");
}
int size = Encdec.Dec_uint16be(Sbuf, 2) & 0xFFFF;
if (size < 33 || (4 + size) > Sbuf.Length)
{
throw new IOException("Invalid payload size: " + size);
}
Readn(In, Sbuf, 4 + 32, size - 32);
resp.Decode(Sbuf, 4);
if (Log.Level >= 4)
{
Log.WriteLine(resp);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
}
}
/// <exception cref="System.IO.IOException"></exception>
public virtual void Sendrecv(ServerMessageBlock request, Response response, long timeout)
{
lock (this)
{
MakeKey(request);
response.IsReceived = false;
try
{
ResponseMap.Put(request, response);
DoSend(request);
response.Expiration = Runtime.CurrentTimeMillis() + timeout;
while (!response.IsReceived)
{
Runtime.Wait(this, timeout);
timeout = response.Expiration - Runtime.CurrentTimeMillis();
if (timeout <= 0)
{
throw new TransportException(Name + " timedout waiting for response to " + request
);
}
}
}
catch (IOException ioe)
{
if (Log.Level > 2)
{
Runtime.PrintStackTrace(ioe, Log);
}
try
{
Disconnect(true);
}
catch (IOException ioe2)
{
Runtime.PrintStackTrace(ioe2, Log);
}
throw;
}
catch (Exception ie)
{
throw new TransportException(ie);
}
finally
{
//Sharpen.Collections.Remove(response_map, request);
ResponseMap.Remove(request);
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void Send(ServerMessageBlock request, ServerMessageBlock response
)
{
lock (Session.Transport())
{
if (response != null)
{
response.Received = false;
}
TreeConnect(request, response);
if (request == null || (response != null && response.Received))
{
return;
}
if (Service.Equals("A:") == false)
{
switch (request.Command)
{
case ServerMessageBlock.SmbComOpenAndx:
case ServerMessageBlock.SmbComNtCreateAndx:
case ServerMessageBlock.SmbComReadAndx:
case ServerMessageBlock.SmbComWriteAndx:
case ServerMessageBlock.SmbComClose:
case ServerMessageBlock.SmbComTreeDisconnect:
{
break;
}
case ServerMessageBlock.SmbComTransaction:
case ServerMessageBlock.SmbComTransaction2:
{
switch (((SmbComTransaction)request).SubCommand & unchecked (0xFF))
{
case SmbComTransaction.NetShareEnum:
case SmbComTransaction.NetServerEnum2:
case SmbComTransaction.NetServerEnum3:
case SmbComTransaction.TransPeekNamedPipe:
case SmbComTransaction.TransWaitNamedPipe:
case SmbComTransaction.TransCallNamedPipe:
case SmbComTransaction.TransTransactNamedPipe:
case SmbComTransaction.Trans2GetDfsReferral:
{
break;
}
default:
{
throw new SmbException("Invalid operation for " + Service + " service");
}
}
break;
}
default:
{
throw new SmbException("Invalid operation for " + Service + " service" + request);
}
}
}
request.Tid = Tid;
if (InDfs && !Service.Equals("IPC") && !string.IsNullOrEmpty(request.Path))
{
request.Flags2 = SmbConstants.Flags2ResolvePathsInDfs;
request.Path = '\\' + Session.Transport().TconHostName + '\\' + Share + request.Path;
}
try
{
Session.Send(request, response);
}
catch (SmbException se)
{
if (se.GetNtStatus() == NtStatus.NtStatusNetworkNameDeleted)
{
TreeDisconnect(true);
}
throw;
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal SmbComSessionSetupAndX(SmbSession session, ServerMessageBlock andx, object
cred) : base(andx)
{
Command = SmbComSessionSetupAndx;
this.Session = session;
this.Cred = cred;
_sessionKey = session.transport.SessionKey;
_capabilities = session.transport.Capabilities;
if (session.transport.Server.Security == SmbConstants.SecurityUser)
{
if (cred is NtlmPasswordAuthentication)
{
NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
if (auth == NtlmPasswordAuthentication.Anonymous)
{
_lmHash = new byte[0];
_ntHash = new byte[0];
_capabilities &= ~SmbConstants.CapExtendedSecurity;
}
else
{
if (session.transport.Server.EncryptedPasswords)
{
_lmHash = auth.GetAnsiHash(session.transport.Server.EncryptionKey);
_ntHash = auth.GetUnicodeHash(session.transport.Server.EncryptionKey);
// prohibit HTTP auth attempts for the null session
if (_lmHash.Length == 0 && _ntHash.Length == 0)
{
throw new RuntimeException("Null setup prohibited.");
}
}
else
{
if (DisablePlainTextPasswords)
{
throw new RuntimeException("Plain text passwords are disabled");
}
if (UseUnicode)
{
// plain text
string password = auth.GetPassword();
_lmHash = new byte[0];
_ntHash = new byte[(password.Length + 1) * 2];
WriteString(password, _ntHash, 0);
}
else
{
// plain text
string password = auth.GetPassword();
_lmHash = new byte[(password.Length + 1) * 2];
_ntHash = new byte[0];
WriteString(password, _lmHash, 0);
}
}
}
_accountName = auth.Username;
if (UseUnicode)
{
_accountName = _accountName.ToUpper();
}
_primaryDomain = auth.Domain.ToUpper();
}
else
{
if (cred is byte[])
{
_blob = (byte[])cred;
}
else
{
throw new SmbException("Unsupported credential type");
}
}
}
else
{
if (session.transport.Server.Security == SmbConstants.SecurityShare)
{
if (cred is NtlmPasswordAuthentication)
{
NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
_lmHash = new byte[0];
_ntHash = new byte[0];
_accountName = auth.Username;
if (UseUnicode)
{
_accountName = _accountName.ToUpper();
}
_primaryDomain = auth.Domain.ToUpper();
}
else
{
throw new SmbException("Unsupported credential type");
}
}
else
{
throw new SmbException("Unsupported");
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal SmbComSessionSetupAndX(SmbSession session, ServerMessageBlock andx, object
cred) : base(andx)
{
Command = SmbComSessionSetupAndx;
this.Session = session;
this.Cred = cred;
_sessionKey = session.transport.SessionKey;
_capabilities = session.transport.Capabilities;
if (session.transport.Server.Security == SmbConstants.SecurityUser)
{
if (cred is NtlmPasswordAuthentication)
{
NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
if (auth == NtlmPasswordAuthentication.Anonymous)
{
_lmHash = new byte[0];
_ntHash = new byte[0];
_capabilities &= ~SmbConstants.CapExtendedSecurity;
}
else
{
if (session.transport.Server.EncryptedPasswords)
{
_lmHash = auth.GetAnsiHash(session.transport.Server.EncryptionKey);
_ntHash = auth.GetUnicodeHash(session.transport.Server.EncryptionKey);
// prohibit HTTP auth attempts for the null session
if (_lmHash.Length == 0 && _ntHash.Length == 0)
{
throw new RuntimeException("Null setup prohibited.");
}
}
else
{
if (DisablePlainTextPasswords)
{
throw new RuntimeException("Plain text passwords are disabled");
}
if (UseUnicode)
{
// plain text
string password = auth.GetPassword();
_lmHash = new byte[0];
_ntHash = new byte[(password.Length + 1) * 2];
WriteString(password, _ntHash, 0);
}
else
{
// plain text
string password = auth.GetPassword();
_lmHash = new byte[(password.Length + 1) * 2];
_ntHash = new byte[0];
WriteString(password, _lmHash, 0);
}
}
}
_accountName = auth.Username;
if (UseUnicode)
{
_accountName = _accountName.ToUpper();
}
_primaryDomain = auth.Domain.ToUpper();
}
else
{
if (cred is byte[])
{
_blob = (byte[])cred;
}
else
{
throw new SmbException("Unsupported credential type");
}
}
}
else
{
if (session.transport.Server.Security == SmbConstants.SecurityShare)
{
if (cred is NtlmPasswordAuthentication)
{
NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
_lmHash = new byte[0];
_ntHash = new byte[0];
_accountName = auth.Username;
if (UseUnicode)
{
_accountName = _accountName.ToUpper();
}
_primaryDomain = auth.Domain.ToUpper();
}
else
{
throw new SmbException("Unsupported credential type");
}
}
else
{
throw new SmbException("Unsupported");
}
}
}
internal SmbComNtCreateAndX(string name, int flags, int access, int shareAccess,
int extFileAttributes, int createOptions, ServerMessageBlock andx) : base(andx)
{
// share access specified in SmbFile
// create disposition
// create options
// security flags
Path = name;
Command = SmbComNtCreateAndx;
DesiredAccess = access;
DesiredAccess |= SmbConstants.FileReadData | SmbConstants.FileReadEa | SmbConstants.FileReadAttributes;
// extFileAttributes
this._extFileAttributes = extFileAttributes;
// shareAccess
this._shareAccess = shareAccess;
// createDisposition
if ((flags & SmbFile.OTrunc) == SmbFile.OTrunc)
{
// truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
_createDisposition = FileOverwriteIf;
}
else
{
_createDisposition = FileOverwrite;
}
}
else
{
// don't truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
if ((flags & SmbFile.OExcl) == SmbFile.OExcl)
{
// fail if already exists
_createDisposition = FileCreate;
}
else
{
_createDisposition = FileOpenIf;
}
}
else
{
_createDisposition = FileOpen;
}
}
if ((createOptions & unchecked(0x0001)) == 0)
{
this._createOptions = createOptions | unchecked(0x0040);
}
else
{
this._createOptions = createOptions;
}
_impersonationLevel = unchecked(0x02);
// As seen on NT :~)
_securityFlags = unchecked(unchecked(0x03));
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void TreeConnect(ServerMessageBlock andx, ServerMessageBlock andxResponse
)
{
lock (Session.Transport())
{
string unc;
while (ConnectionState != 0)
{
if (ConnectionState == 2 || ConnectionState == 3)
{
// connected or disconnecting
return;
}
try
{
Runtime.Wait(Session.transport);
}
catch (Exception ie)
{
throw new SmbException(ie.Message, ie);
}
}
ConnectionState = 1;
// trying ...
try
{
Session.transport.Connect();
unc = "\\\\" + Session.transport.TconHostName + '\\' + Share;
Service = Service0;
if (Session.transport.Log.Level >= 4)
{
Session.transport.Log.WriteLine("treeConnect: unc=" + unc + ",service=" + Service
);
}
SmbComTreeConnectAndXResponse response = new SmbComTreeConnectAndXResponse(andxResponse
);
SmbComTreeConnectAndX request = new SmbComTreeConnectAndX(Session, unc, Service,
andx);
Session.Send(request, response);
Tid = response.Tid;
Service = response.Service;
InDfs = response.ShareIsInDfs;
TreeNum = _treeConnCounter++;
ConnectionState = 2;
}
catch (SmbException se)
{
// connected
TreeDisconnect(true);
ConnectionState = 0;
throw;
}
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal virtual void DoSend0(ServerMessageBlock request)
{
try
{
DoSend(request);
}
catch (IOException ioe)
{
if (Log.Level > 2)
{
Runtime.PrintStackTrace(ioe, Log);
}
try
{
Disconnect(true);
}
catch (IOException ioe2)
{
Runtime.PrintStackTrace(ioe2, Log);
}
throw;
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal void SessionSetup(ServerMessageBlock andx, ServerMessageBlock andxResponse
)
{
lock (Transport())
{
INtlmContext nctx = null;
SmbException ex = null;
SmbComSessionSetupAndX request;
SmbComSessionSetupAndXResponse response;
byte[] token = new byte[0];
int state = 10;
while (ConnectionState != 0)
{
if (ConnectionState == 2 || ConnectionState == 3)
{
// connected or disconnecting
return;
}
try
{
Runtime.Wait(transport);
}
catch (Exception ie)
{
throw new SmbException(ie.Message, ie);
}
}
ConnectionState = 1;
// trying ...
try
{
transport.Connect();
if (transport.Log.Level >= 4)
{
transport.Log.WriteLine("sessionSetup: accountName=" + Auth.Username + ",primaryDomain="
+ Auth.Domain);
}
Uid = 0;
do
{
switch (state)
{
case 10:
{
if (Auth != NtlmPasswordAuthentication.Anonymous && transport.HasCapability(SmbConstants
.CapExtendedSecurity))
{
state = 20;
break;
}
request = new SmbComSessionSetupAndX(this, andx, Auth);
response = new SmbComSessionSetupAndXResponse(andxResponse);
if (transport.IsSignatureSetupRequired(Auth))
{
if (Auth.HashesExternal && NtlmPasswordAuthentication.DefaultPassword != NtlmPasswordAuthentication
.Blank)
{
transport.GetSmbSession(NtlmPasswordAuthentication.Default).GetSmbTree(LogonShare
, null).TreeConnect(null, null);
}
else
{
byte[] signingKey = Auth.GetSigningKey(transport.Server.EncryptionKey);
request.Digest = new SigningDigest(signingKey, false);
}
}
request.Auth = Auth;
try
{
transport.Send(request, response);
}
catch (SmbAuthException sae)
{
throw;
}
catch (SmbException se)
{
ex = se;
}
if (response.IsLoggedInAsGuest && Runtime.EqualsIgnoreCase("GUEST", Auth.
Username) == false && transport.Server.Security != SmbConstants.SecurityShare &&
Auth != NtlmPasswordAuthentication.Anonymous)
{
throw new SmbAuthException(NtStatus.NtStatusLogonFailure);
}
if (ex != null)
{
throw ex;
}
Uid = response.Uid;
if (request.Digest != null)
{
transport.Digest = request.Digest;
}
ConnectionState = 2;
state = 0;
break;
}
case 20:
{
if (nctx == null)
{
bool doSigning = (transport.Flags2 & SmbConstants.Flags2SecuritySignatures
) != 0;
nctx = Config.getNtlmContextFactory().create(Auth, doSigning);
}
if (SmbTransport.LogStatic.Level >= 4)
{
SmbTransport.LogStatic.WriteLine(nctx);
}
if (nctx.IsEstablished())
{
NetbiosName = nctx.GetNetbiosName();
ConnectionState = 2;
state = 0;
break;
}
try
{
token = nctx.InitSecContext(token, 0, token.Length);
}
catch (SmbException se)
{
try
{
transport.Disconnect(true);
}
catch (IOException)
{
}
Uid = 0;
throw;
}
if (token != null)
{
request = new SmbComSessionSetupAndX(this, null, token);
response = new SmbComSessionSetupAndXResponse(null);
if (transport.IsSignatureSetupRequired(Auth))
{
byte[] signingKey = nctx.GetSigningKey();
if (signingKey != null)
{
request.Digest = new SigningDigest(signingKey, true);
}
}
request.Uid = Uid;
Uid = 0;
try
{
transport.Send(request, response);
}
catch (SmbAuthException sae)
{
throw;
}
catch (SmbException se)
{
ex = se;
try
{
transport.Disconnect(true);
}
catch (Exception)
{
}
}
if (response.IsLoggedInAsGuest && Runtime.EqualsIgnoreCase("GUEST", Auth.
Username) == false)
{
throw new SmbAuthException(NtStatus.NtStatusLogonFailure);
}
if (ex != null)
{
throw ex;
}
Uid = response.Uid;
if (request.Digest != null)
{
transport.Digest = request.Digest;
}
token = response.Blob;
}
break;
}
default:
{
throw new SmbException("Unexpected session setup state: " + state);
}
}
}
while (state != 0);
}
catch (SmbException se)
{
Logoff(true);
ConnectionState = 0;
throw;
}
finally
{
Runtime.NotifyAll(transport);
}
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void DoSend(ServerMessageBlock request)
{
lock (Buf)
{
ServerMessageBlock smb = request;
int n = smb.Encode(Buf, 4);
Encdec.Enc_uint32be(n & 0xFFFF, Buf, 0);
if (Log.Level >= 4)
{
do
{
Log.WriteLine(smb);
}
while (smb is AndXServerMessageBlock && (smb = ((AndXServerMessageBlock)smb).Andx
) != null);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Buf, 4, n);
}
}
Out.Write(Buf, 0, 4 + n);
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
public WriterThread(SmbFile enclosing)
: base("JCIFS-WriterThread")
{
this._enclosing = enclosing;
UseNtSmbs = this._enclosing.Tree.Session.transport.HasCapability(SmbConstants.CapNtSmbs);
if (UseNtSmbs)
{
Reqx = new SmbComWriteAndX();
Resp = new SmbComWriteAndXResponse();
}
else
{
Req = new SmbComWrite();
Resp = new SmbComWriteResponse();
}
Ready = false;
}
/// <exception cref="System.IO.IOException"></exception>
private void Negotiate(int port, ServerMessageBlock resp)
{
lock (Sbuf)
{
if (port == 139)
{
Ssn139();
}
else
{
if (port == -1)
{
port = SmbConstants.DefaultPort;
}
// 445
Socket = new SocketEx(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
if (LocalAddr != null)
{
Socket.Bind2(new IPEndPoint(LocalAddr, LocalPort));
}
Socket.Connect(new IPEndPoint(IPAddress.Parse(Address.GetHostAddress()), port), SmbConstants.ConnTimeout);
Socket.SoTimeOut = SmbConstants.SoTimeout;
Out = Socket.GetOutputStream();
In = Socket.GetInputStream();
}
if (++Mid == 32000)
{
Mid = 1;
}
NegotiateRequest.Mid = Mid;
int n = NegotiateRequest.Encode(Sbuf, 4);
Encdec.Enc_uint32be(n & 0xFFFF, Sbuf, 0);
if (Log.Level >= 4)
{
Log.WriteLine(NegotiateRequest);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
Out.Write(Sbuf, 0, 4 + n);
Out.Flush();
if (PeekKey() == null)
{
throw new IOException("transport closed in negotiate");
}
int size = Encdec.Dec_uint16be(Sbuf, 2) & 0xFFFF;
if (size < 33 || (4 + size) > Sbuf.Length)
{
throw new IOException("Invalid payload size: " + size);
}
Readn(In, Sbuf, 4 + 32, size - 32);
resp.Decode(Sbuf, 4);
if (Log.Level >= 4)
{
Log.WriteLine(resp);
if (Log.Level >= 6)
{
Hexdump.ToHexdump(Log, Sbuf, 4, n);
}
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void Send(ServerMessageBlock request, ServerMessageBlock response
)
{
for (; ; )
{
ResolveDfs(request);
try
{
Tree.Send(request, response);
break;
}
catch (DfsReferral dre)
{
if (dre.ResolveHashes)
{
throw;
}
request.Reset();
}
}
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void CheckStatus(ServerMessageBlock req, ServerMessageBlock resp
)
{
resp.ErrorCode = SmbException.GetStatusByCode(resp.ErrorCode);
switch (resp.ErrorCode)
{
case NtStatus.NtStatusOk:
{
break;
}
case NtStatus.NtStatusAccessDenied:
case NtStatus.NtStatusWrongPassword:
case NtStatus.NtStatusLogonFailure:
case NtStatus.NtStatusAccountRestriction:
case NtStatus.NtStatusInvalidLogonHours:
case NtStatus.NtStatusInvalidWorkstation:
case NtStatus.NtStatusPasswordExpired:
case NtStatus.NtStatusAccountDisabled:
case NtStatus.NtStatusAccountLockedOut:
case NtStatus.NtStatusTrustedDomainFailure:
{
throw new SmbAuthException(resp.ErrorCode);
}
case NtStatus.NtStatusPathNotCovered:
{
if (req.Auth == null)
{
throw new SmbException(resp.ErrorCode, null);
}
DfsReferral dr = GetDfsReferrals(req.Auth, req.Path, 1);
if (dr == null)
{
throw new SmbException(resp.ErrorCode, null);
}
SmbFile.Dfs.Insert(req.Path, dr);
throw dr;
}
case unchecked((int)(0x80000005)):
{
break;
}
case NtStatus.NtStatusMoreProcessingRequired:
{
break;
}
default:
{
throw new SmbException(resp.ErrorCode, null);
}
}
if (resp.VerifyFailed)
{
throw new SmbException("Signature verification failed.");
}
}
/// <exception cref="System.IO.IOException"></exception> protected internal abstract void MakeKey(ServerMessageBlock request);
/// <summary>Performs MAC signature verification.</summary>
/// <remarks>
/// Performs MAC signature verification. This calculates the signature
/// of the SMB and compares it to the signature field on the SMB itself.
/// </remarks>
/// <param name="data">The data.</param>
/// <param name="offset">The starting offset at which the SMB header begins.</param>
/// <param name="length">The length of the SMB data starting at offset.</param>
internal virtual bool Verify(byte[] data, int offset, ServerMessageBlock response
)
{
Update(_macSigningKey, 0, _macSigningKey.Length);
int index = offset;
Update(data, index, SmbConstants.SignatureOffset);
index += SmbConstants.SignatureOffset;
byte[] sequence = new byte[8];
ServerMessageBlock.WriteInt4(response.SignSeq, sequence, 0);
Update(sequence, 0, sequence.Length);
index += 8;
if (response.Command == ServerMessageBlock.SmbComReadAndx)
{
SmbComReadAndXResponse raxr = (SmbComReadAndXResponse)response;
int length = response.Length - raxr.DataLength;
Update(data, index, length - SmbConstants.SignatureOffset - 8);
Update(raxr.B, raxr.Off, raxr.DataLength);
}
else
{
Update(data, index, response.Length - SmbConstants.SignatureOffset - 8);
}
byte[] signature = Digest();
for (int i = 0; i < 8; i++)
{
if (signature[i] != data[offset + SmbConstants.SignatureOffset + i])
{
if (Log.Level >= 2)
{
Log.WriteLine("signature verification failure");
Hexdump.ToHexdump(Log, signature, 0, 8);
Hexdump.ToHexdump(Log, data, offset + SmbConstants.SignatureOffset, 8);
}
return response.VerifyFailed = true;
}
}
return response.VerifyFailed = false;
}
internal SmbComSessionSetupAndXResponse(ServerMessageBlock andx) : base(andx)
{
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
internal virtual void Send(ServerMessageBlock request, ServerMessageBlock response
)
{
Connect();
request.Flags2 |= Flags2;
request.UseUnicode = UseUnicode;
request.Response = response;
if (request.Digest == null)
{
request.Digest = Digest;
}
try
{
if (response == null)
{
DoSend0(request);
return;
}
if (request is SmbComTransaction)
{
response.Command = request.Command;
SmbComTransaction req = (SmbComTransaction)request;
SmbComTransactionResponse resp = (SmbComTransactionResponse)response;
req.MaxBufferSize = SndBufSize;
resp.Reset();
try
{
BufferCache.GetBuffers(req, resp);
req.Current();
if (req.MoveNext())
{
SmbComBlankResponse interim = new SmbComBlankResponse();
Sendrecv(req, interim, SmbConstants.ResponseTimeout);
if (interim.ErrorCode != 0)
{
CheckStatus(req, interim);
}
req.Current();
}
else
{
MakeKey(req);
}
lock (this)
{
response.Received = false;
resp.IsReceived = false;
try
{
ResponseMap.Put(req, resp);
do
{
DoSend0(req);
}
while (req.MoveNext() && req.Current() != null);
long timeout = SmbConstants.ResponseTimeout;
resp.Expiration = Runtime.CurrentTimeMillis() + timeout;
while (resp.MoveNext())
{
Runtime.Wait(this, timeout);
timeout = resp.Expiration - Runtime.CurrentTimeMillis();
if (timeout <= 0)
{
throw new TransportException(this + " timedout waiting for response to " + req);
}
}
if (response.ErrorCode != 0)
{
CheckStatus(req, resp);
}
}
catch (Exception ie)
{
if (ie is SmbException)
{
throw;
}
else
{
throw new TransportException(ie);
}
}
finally
{
//Sharpen.Collections.Remove<Hashtable, SmbComTransaction>(response_map, req);
ResponseMap.Remove(req);
}
}
}
finally
{
BufferCache.ReleaseBuffer(req.TxnBuf);
BufferCache.ReleaseBuffer(resp.TxnBuf);
}
}
else
{
response.Command = request.Command;
Sendrecv(request, response, SmbConstants.ResponseTimeout);
}
}
catch (SmbException se)
{
throw;
}
catch (IOException ioe)
{
throw new SmbException(ioe.Message, ioe);
}
CheckStatus(request, response);
}
internal SmbComTreeConnectAndXResponse(ServerMessageBlock andx) : base(andx)
{
}
internal SmbComSessionSetupAndXResponse(ServerMessageBlock andx) : base(andx)
{
}
