/// <summary> /// Creates a BindRequestPacket with context and BindRequest. /// </summary> /// <param name="context">The context.</param> /// <param name="bindRequest">The BindRequest message.</param> /// <returns>The BindRequestPacket.</returns> private AdtsBindRequestPacket CreateBindRequestPacket( AdtsLdapContext context, BindRequest bindRequest) { LDAPMessage_protocolOp operation = new LDAPMessage_protocolOp(); operation.SetData(LDAPMessage_protocolOp.bindRequest, bindRequest); LDAPMessage message = new LDAPMessage(new MessageID(context.MessageId), operation); AdtsBindRequestPacket packet = new AdtsBindRequestPacket(); packet.ldapMessagev2 = message; packet.messageId = context.MessageId; return(packet); }
/// <summary> /// Creates a BindRequestPacket with context and BindRequest. /// </summary> /// <param name="context">The context.</param> /// <param name="bindRequest">The BindRequest message.</param> /// <returns>The BindRequestPacket.</returns> private AdtsBindRequestPacket CreateBindRequestPacket( AdtsLdapContext context, BindRequest bindRequest) { LDAPMessage_protocolOp operation = new LDAPMessage_protocolOp(); operation.SetData(LDAPMessage_protocolOp.bindRequest, bindRequest); MessageID messageId = new MessageID(context.MessageId); LDAPMessage message = new LDAPMessage(messageId, operation, null); AdtsBindRequestPacket packet = new AdtsBindRequestPacket(); packet.ldapMessagev3 = message; packet.messageId = context.MessageId; return packet; }
/// <summary> /// This method encapsulates LdapV2Decoder and LdapV3Decoder because the incoming packets may be /// LDAP v2 or v3 packets, the decoding may require both decoders if the LDAP version that client uses /// is not clear. /// </summary> /// <param name="endPoint">The end point of the client.</param> /// <param name="messageBytes">The message bytes that contains the packet data.</param> /// <param name="consumedLength">Consumed length.</param> /// <param name="expectedLength"> /// Indicates expected length if the message bytes doesn't all packet data. /// </param> /// <returns>Decoded packets.</returns> internal override StackPacket[] DecodeLdapPacketCallBack( object endPoint, byte[] messageBytes, out int consumedLength, out int expectedLength) { // Get packet data, start decoding. IPEndPoint remote = (IPEndPoint)endPoint; AdtsLdapContext context = GetContext(remote, this.server.IsTcp); byte[] data = messageBytes; // decode messageBytes if needed if (context != null && messageBytes != null) { // if security is not init, and the package is SslHandshake, init security. if (context.Security == null) { AdtsLdapSslTlsSecurityHeader header = new AdtsLdapSslTlsSecurityHeader(); header.FromBytes(messageBytes); if (header.IsSslHandShake) { this.server.SslStartup(context); } } // decode messageBytes with security. if (context.Security != null) { data = this.server.Decrypt(context, messageBytes); } } byte[] packetData = this.GetSinglePacketData(data, out consumedLength, out expectedLength); // add the comsumed length of security decorder if (context != null && context.Security != null && context.Security.ConsumedData) { consumedLength = context.Security.ConsumedLength; } if (packetData == null) { return(null); } // New connection. Try both LDAP v2 and v3 decoders. Note that for requests that don't have version // context(e.g., UDP search requests), LDAP v3 is used by default. AdtsLdapPacket packet = null; if (context == null) { context = new AdtsLdapContext(AdtsLdapVersion.V3, remote); packet = this.decoderv3.ParseAdtsLdapPacket( this.decoderv3.AuthenticateMessage(packetData), context); // synchronize the message ID with newly received packet. context.MessageId = packet.messageId; // Check BindRequestPacket, normally it's the first message from client in which // contains the LDAP version. And since LDAP v3 decoder can decode LDAP v2 messages // without any exception, we need to check into the 'version' variable in the request. AdtsBindRequestPacket bindRequestPacket = packet as AdtsBindRequestPacket; if (bindRequestPacket != null) { LdapV3.BindRequest bindRequest = (LdapV3.BindRequest)bindRequestPacket.GetInnerRequestOrResponse(); // Version doesn't match. Decode again with LDAP v2 decoder and update context version. if ((AdtsLdapVersion)bindRequest.version.Value == AdtsLdapVersion.V2) { packet = this.decoderv2.ParseAdtsLdapPacket( this.decoderv2.AuthenticateMessage(packetData), context); context.ClientVersion = context.ServerVersion = AdtsLdapVersion.V2; } } // Add context. this.server.ContextManager.AddContext(context, this.server.IsTcp); } else { if (context.ClientVersion == AdtsLdapVersion.V2) { packet = this.decoderv2.ParseAdtsLdapPacket( this.decoderv2.AuthenticateMessage(packetData), context); } else { packet = this.decoderv3.ParseAdtsLdapPacket( this.decoderv3.AuthenticateMessage(packetData), context); } // synchronize the message ID with newly received packet. context.MessageId = packet.messageId; } return(new StackPacket[] { packet }); }
internal AdtsLdapPacket CreatePacketFromType(Type messageType) { AdtsLdapPacket packet = null; if (messageType == typeof(AbandonRequest)) { packet = new AdtsAbandonRequestPacket(); } else if (messageType == typeof(AddRequest)) { packet = new AdtsAddRequestPacket(); } else if (messageType == typeof(AddResponse)) { packet = new AdtsAddResponsePacket(); } else if (messageType == typeof(BindRequest)) { packet = new AdtsBindRequestPacket(); } else if (messageType == typeof(BindResponse)) { packet = new AdtsBindResponsePacket(); } else if (messageType == typeof(CompareRequest)) { packet = new AdtsCompareRequestPacket(); } else if (messageType == typeof(CompareResponse)) { packet = new AdtsCompareResponsePacket(); } else if (messageType == typeof(DelRequest)) { packet = new AdtsDelRequestPacket(); } else if (messageType == typeof(DelResponse)) { packet = new AdtsDelResponsePacket(); } else if (messageType == typeof(ExtendedRequest)) { packet = new AdtsExtendedRequestPacket(); } else if (messageType == typeof(ExtendedResponse)) { packet = new AdtsExtendedResponsePacket(); } else if (messageType == typeof(ModifyDNRequest)) { packet = new AdtsModifyDnRequestPacket(); } else if (messageType == typeof(ModifyDNResponse)) { packet = new AdtsModifyDnResponsePacket(); } else if (messageType == typeof(ModifyRequest)) { packet = new AdtsModifyRequestPacket(); } else if (messageType == typeof(ModifyResponse)) { packet = new AdtsModifyResponsePacket(); } else if (messageType == typeof(SearchRequest)) { packet = new AdtsSearchRequestPacket(); } else if (messageType == typeof(SearchResultEntry)) { packet = new AdtsSearchResultEntryPacket(); } else if (messageType == typeof(SearchResultReference)) { packet = new AdtsSearchResultReferencePacket(); } else if (messageType == typeof(SearchResultDone)) { packet = new AdtsSearchResultDonePacket(); } else if (messageType == typeof(SicilyBindResponse)) { packet = new AdtsSicilyBindResponsePacket(); } else if (messageType == typeof(UnbindRequest)) { packet = new AdtsUnbindRequestPacket(); } else { throw new StackException("Unknown message type: " + messageType.ToString()); } return packet; }
internal AdtsLdapPacket CreatePacketFromType(Type messageType) { AdtsLdapPacket packet = null; if (messageType == typeof(AbandonRequest)) { packet = new AdtsAbandonRequestPacket(); } else if (messageType == typeof(AddRequest)) { packet = new AdtsAddRequestPacket(); } else if (messageType == typeof(AddResponse)) { packet = new AdtsAddResponsePacket(); } else if (messageType == typeof(BindRequest)) { packet = new AdtsBindRequestPacket(); } else if (messageType == typeof(BindResponse)) { packet = new AdtsBindResponsePacket(); } else if (messageType == typeof(CompareRequest)) { packet = new AdtsCompareRequestPacket(); } else if (messageType == typeof(CompareResponse)) { packet = new AdtsCompareResponsePacket(); } else if (messageType == typeof(DelRequest)) { packet = new AdtsDelRequestPacket(); } else if (messageType == typeof(DelResponse)) { packet = new AdtsDelResponsePacket(); } else if (messageType == typeof(ExtendedRequest)) { packet = new AdtsExtendedRequestPacket(); } else if (messageType == typeof(ExtendedResponse)) { packet = new AdtsExtendedResponsePacket(); } else if (messageType == typeof(ModifyDNRequest)) { packet = new AdtsModifyDnRequestPacket(); } else if (messageType == typeof(ModifyDNResponse)) { packet = new AdtsModifyDnResponsePacket(); } else if (messageType == typeof(ModifyRequest)) { packet = new AdtsModifyRequestPacket(); } else if (messageType == typeof(ModifyResponse)) { packet = new AdtsModifyResponsePacket(); } else if (messageType == typeof(SearchRequest)) { packet = new AdtsSearchRequestPacket(); } else if (messageType == typeof(SearchResultEntry)) { packet = new AdtsSearchResultEntryPacket(); } else if (messageType == typeof(SearchResultReference)) { packet = new AdtsSearchResultReferencePacket(); } else if (messageType == typeof(SearchResultDone)) { packet = new AdtsSearchResultDonePacket(); } else if (messageType == typeof(SicilyBindResponse)) { packet = new AdtsSicilyBindResponsePacket(); } else if (messageType == typeof(UnbindRequest)) { packet = new AdtsUnbindRequestPacket(); } else { throw new StackException("Unknown message type: " + messageType.ToString()); } return(packet); }