internal static NegotiateResponseExtended GetNegotiateResponseExtended(NegotiateRequest request, Guid serverGuid)
{
NegotiateResponseExtended response = new NegotiateResponseExtended();
response.DialectIndex = (ushort)request.Dialects.IndexOf(SMBServer.NTLanManagerDialect);
response.SecurityMode = SecurityMode.UserSecurityMode | SecurityMode.EncryptPasswords;
response.MaxMpxCount = ServerMaxMpxCount;
response.MaxNumberVcs = ServerNumberVcs;
response.MaxBufferSize = ServerMaxBufferSize;
response.MaxRawSize = ServerMaxRawSize;
response.Capabilities = Capabilities.Unicode |
Capabilities.LargeFiles |
Capabilities.NTSMB |
Capabilities.RpcRemoteApi |
Capabilities.NTStatusCode |
Capabilities.NTFind |
Capabilities.InfoLevelPassthrough |
Capabilities.LargeRead |
Capabilities.LargeWrite |
Capabilities.ExtendedSecurity;
response.SystemTime = DateTime.UtcNow;
response.ServerTimeZone = (short)-TimeZoneInfo.Local.GetUtcOffset(DateTime.Now).TotalMinutes;
response.ServerGuid = serverGuid;
return(response);
}
private bool NegotiateNTLanManagerDialect()
{
if (m_transport == SMBTransportType.NetBiosOverTCP)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket();
sessionRequest.CalledName = NetBiosUtils.GetMSNetBiosName("*SMBSERVER", NetBiosSuffix.FileServiceService);;
sessionRequest.CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService);
TrySendPacket(m_clientSocket, sessionRequest);
}
NegotiateRequest request = new NegotiateRequest();
request.Dialects.Add(NTLanManagerDialect);
TrySendMessage(m_clientSocket, request);
SMB1Message reply = WaitForMessage(CommandName.SMB_COM_NEGOTIATE);
if (reply == null)
{
return(false);
}
if (reply.Commands[0] is NegotiateResponse)
{
NegotiateResponse response = (NegotiateResponse)reply.Commands[0];
return(true);
}
else if (reply.Commands[0] is NegotiateResponseExtended)
{
NegotiateResponseExtended response = (NegotiateResponseExtended)reply.Commands[0];
return(true);
}
else
{
return(false);
}
}
private bool NegotiateDialect(bool forceExtendedSecurity)
{
if (m_transport == SMBTransportType.NetBiosOverTCP)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket();
sessionRequest.CalledName = NetBiosUtils.GetMSNetBiosName("*SMBSERVER", NetBiosSuffix.FileServiceService);;
sessionRequest.CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService);
TrySendPacket(m_clientSocket, sessionRequest);
}
NegotiateRequest request = new NegotiateRequest();
request.Dialects.Add(NTLanManagerDialect);
TrySendMessage(request);
SMB1Message reply = WaitForMessage(CommandName.SMB_COM_NEGOTIATE);
if (reply == null)
{
return(false);
}
if (reply.Commands[0] is NegotiateResponse && !forceExtendedSecurity)
{
NegotiateResponse response = (NegotiateResponse)reply.Commands[0];
m_unicode = ((response.Capabilities & Capabilities.Unicode) > 0);
m_largeFiles = ((response.Capabilities & Capabilities.LargeFiles) > 0);
bool ntSMB = ((response.Capabilities & Capabilities.NTSMB) > 0);
bool rpc = ((response.Capabilities & Capabilities.RpcRemoteApi) > 0);
bool ntStatusCode = ((response.Capabilities & Capabilities.NTStatusCode) > 0);
m_infoLevelPassthrough = ((response.Capabilities & Capabilities.InfoLevelPassthrough) > 0);
m_largeRead = ((response.Capabilities & Capabilities.LargeRead) > 0);
m_largeWrite = ((response.Capabilities & Capabilities.LargeWrite) > 0);
m_serverMaxBufferSize = response.MaxBufferSize;
m_maxMpxCount = Math.Min(response.MaxMpxCount, ClientMaxMpxCount);
m_serverChallenge = response.Challenge;
return(ntSMB && rpc && ntStatusCode);
}
else if (reply.Commands[0] is NegotiateResponseExtended)
{
NegotiateResponseExtended response = (NegotiateResponseExtended)reply.Commands[0];
m_unicode = ((response.Capabilities & Capabilities.Unicode) > 0);
m_largeFiles = ((response.Capabilities & Capabilities.LargeFiles) > 0);
bool ntSMB = ((response.Capabilities & Capabilities.NTSMB) > 0);
bool rpc = ((response.Capabilities & Capabilities.RpcRemoteApi) > 0);
bool ntStatusCode = ((response.Capabilities & Capabilities.NTStatusCode) > 0);
m_infoLevelPassthrough = ((response.Capabilities & Capabilities.InfoLevelPassthrough) > 0);
m_largeRead = ((response.Capabilities & Capabilities.LargeRead) > 0);
m_largeWrite = ((response.Capabilities & Capabilities.LargeWrite) > 0);
m_serverMaxBufferSize = response.MaxBufferSize;
m_maxMpxCount = Math.Min(response.MaxMpxCount, ClientMaxMpxCount);
m_securityBlob = response.SecurityBlob;
return(ntSMB && rpc && ntStatusCode);
}
else
{
return(false);
}
}
private bool NegotiateDialect(bool forceExtendedSecurity)
{
NegotiateRequest request = new NegotiateRequest();
request.Dialects.Add(NTLanManagerDialect);
TrySendMessage(request);
SMB1Message reply = WaitForMessage(CommandName.SMB_COM_NEGOTIATE);
if (reply == null)
{
return(false);
}
if (reply.Commands[0] is NegotiateResponse && !forceExtendedSecurity)
{
NegotiateResponse response = (NegotiateResponse)reply.Commands[0];
Domainname = response.DomainName;
Hostname = response.ServerName;
m_unicode = ((response.Capabilities & Capabilities.Unicode) > 0);
m_largeFiles = ((response.Capabilities & Capabilities.LargeFiles) > 0);
bool ntSMB = ((response.Capabilities & Capabilities.NTSMB) > 0);
bool rpc = ((response.Capabilities & Capabilities.RpcRemoteApi) > 0);
bool ntStatusCode = ((response.Capabilities & Capabilities.NTStatusCode) > 0);
m_infoLevelPassthrough = ((response.Capabilities & Capabilities.InfoLevelPassthrough) > 0);
m_largeRead = ((response.Capabilities & Capabilities.LargeRead) > 0);
m_largeWrite = ((response.Capabilities & Capabilities.LargeWrite) > 0);
m_serverMaxBufferSize = response.MaxBufferSize;
m_maxMpxCount = Math.Min(response.MaxMpxCount, ClientMaxMpxCount);
m_serverChallenge = response.Challenge;
return(ntSMB && rpc && ntStatusCode);
}
else if (reply.Commands[0] is NegotiateResponseExtended)
{
NegotiateResponseExtended response = (NegotiateResponseExtended)reply.Commands[0];
m_unicode = ((response.Capabilities & Capabilities.Unicode) > 0);
m_largeFiles = ((response.Capabilities & Capabilities.LargeFiles) > 0);
bool ntSMB = ((response.Capabilities & Capabilities.NTSMB) > 0);
bool rpc = ((response.Capabilities & Capabilities.RpcRemoteApi) > 0);
bool ntStatusCode = ((response.Capabilities & Capabilities.NTStatusCode) > 0);
m_infoLevelPassthrough = ((response.Capabilities & Capabilities.InfoLevelPassthrough) > 0);
m_largeRead = ((response.Capabilities & Capabilities.LargeRead) > 0);
m_largeWrite = ((response.Capabilities & Capabilities.LargeWrite) > 0);
m_serverMaxBufferSize = response.MaxBufferSize;
m_maxMpxCount = Math.Min(response.MaxMpxCount, ClientMaxMpxCount);
m_securityBlob = response.SecurityBlob;
return(ntSMB && rpc && ntStatusCode);
}
else
{
return(false);
}
}
internal static NegotiateResponseExtended GetNegotiateResponseExtended(NegotiateRequest request, Guid serverGuid)
{
NegotiateResponseExtended response = new NegotiateResponseExtended();
response.DialectIndex = (ushort)request.Dialects.IndexOf(SMBServer.NTLanManagerDialect);
response.SecurityMode = SecurityMode.UserSecurityMode | SecurityMode.EncryptPasswords;
response.MaxMpxCount = 50;
response.MaxNumberVcs = 1;
response.MaxBufferSize = 16644;
response.MaxRawSize = 65536;
response.Capabilities = ServerCapabilities.Unicode |
ServerCapabilities.LargeFiles |
ServerCapabilities.NTSMB |
ServerCapabilities.NTStatusCode |
ServerCapabilities.NTFind |
ServerCapabilities.LargeRead |
ServerCapabilities.LargeWrite |
ServerCapabilities.ExtendedSecurity;
response.SystemTime = DateTime.UtcNow;
response.ServerTimeZone = (short)-TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Now).TotalMinutes;
response.ServerGuid = serverGuid;
return(response);
}
