text: /*
   * tcpprocessack.{cc,hh} -- Process TCP ACK flag
   * Myriana Rifai
   *
   * Copyright (c) 2018 Nokia Bell Labs
   *
   * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
   * 
   * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer 
   *    in the documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
   * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   *
   */
  
  #ifndef CLICK_DCTCPPROCESSACK_HH
  #define CLICK_DCTCPPROCESSACK_HH
  #include <click/element.hh>
  CLICK_DECLS
  
  #define DCTCP_PROCESS_ACK_OUT_TXT 0
  #define DCTCP_PROCESS_ACK_OUT_ACK 1
  #define DCTCP_PROCESS_ACK_OUT_RST 2
  #define DCTCP_PROCESS_ACK_OUT_RTR 3
  
  class DCTCPProcessAck final : public Element { public:
  
  	DCTCPProcessAck() CLICK_COLD;
  
  	const char *class_name() const { return "DCTCPProcessAck"; }
  	const char *port_count() const { return "1/4"; }
  	const char *processing() const { return PROCESSING_A_AH; }
  
  	Packet *smaction(Packet *);
  	void push(int, Packet *) final;
  	Packet *pull(int);
  
  };
  
  CLICK_ENDDECLS
  #endif
  
  