public static RpceCoPdu DecodeCoPdu( RpceContext context, byte[] pduBytes) { if (context == null) { throw new ArgumentNullException("context"); } if (pduBytes == null) { throw new ArgumentNullException("pduBytes"); } RpceCoPdu pdu; //#2 byte is PTYPE RpcePacketType packageType = (RpcePacketType)pduBytes[2]; //#3 byte is PFC_*** flags RpceCoPfcFlags pfcFlags = (RpceCoPfcFlags)pduBytes[3]; RpceCoPfcFlags pfcFlagsNoFragment = RpceCoPfcFlags.PFC_FIRST_FRAG | RpceCoPfcFlags.PFC_LAST_FRAG; if (((pfcFlags & pfcFlagsNoFragment) != pfcFlagsNoFragment) && (packageType == RpcePacketType.Bind || packageType == RpcePacketType.BindAck || packageType == RpcePacketType.AlterContext || packageType == RpcePacketType.AlterContextResp || packageType == RpcePacketType.Auth3)) { //If it's a fragment and PTYPE is bind/bind_ack/alter_context/alter_context_resp //Windows RPC support version 5.0 only. //Bind fragment requires RPC ver 5.1. //We don't support it. throw new NotSupportedException("bind/bind_ack/alt_context/alt_context_resp/auth3 PDU fragment are not supported."); } else { switch (packageType) { case RpcePacketType.Bind: pdu = new RpceCoBindPdu(context, pduBytes); break; case RpcePacketType.BindAck: pdu = new RpceCoBindAckPdu(context, pduBytes); break; case RpcePacketType.BindNak: pdu = new RpceCoBindNakPdu(context, pduBytes); break; case RpcePacketType.AlterContext: pdu = new RpceCoAlterContextPdu(context, pduBytes); break; case RpcePacketType.AlterContextResp: pdu = new RpceCoAlterContextRespPdu(context, pduBytes); break; case RpcePacketType.Auth3: pdu = new RpceCoAuth3Pdu(context, pduBytes); break; case RpcePacketType.Request: pdu = new RpceCoRequestPdu(context, pduBytes); break; case RpcePacketType.Response: pdu = new RpceCoResponsePdu(context, pduBytes); break; case RpcePacketType.Fault: pdu = new RpceCoFaultPdu(context, pduBytes); break; case RpcePacketType.CoCancel: pdu = new RpceCoCancelPdu(context, pduBytes); break; case RpcePacketType.Orphaned: pdu = new RpceCoOrphanedPdu(context, pduBytes); break; case RpcePacketType.Shutdown: pdu = new RpceCoShutdownPdu(context, pduBytes); break; default: throw new InvalidOperationException( string.Format("Receive invalid packet - {0}.", packageType)); } } return(pdu); }
/// <summary> /// Create a RpceCoOrphanedPdu. /// </summary> /// <param name="callId"> /// Call Id. /// </param> /// <returns> /// Created RpceCoOrphanedPdu, it's ok to be sent out if there's /// no modification to any field of the PDU. /// </returns> public RpceCoOrphanedPdu CreateCoOrphanedPdu(uint callId) { RpceCoOrphanedPdu orphanedPdu = new RpceCoOrphanedPdu(context); orphanedPdu.rpc_vers = context.RpcVersionMajor; orphanedPdu.rpc_vers_minor = context.RpcVersionMinor; orphanedPdu.PTYPE = RpcePacketType.Orphaned; orphanedPdu.pfc_flags = RpceUtility.GeneratePfcFlags(context, RpcePacketType.Orphaned); orphanedPdu.packed_drep.dataRepFormat = context.PackedDataRepresentationFormat; orphanedPdu.packed_drep.reserved = 0; orphanedPdu.call_id = callId; orphanedPdu.AppendAuthenticationVerifier(); orphanedPdu.SetLength(); return orphanedPdu; }