Enhance comments (c5ad3bf0) · Commits · CABLE - Integrated broadband cable telecommunication networks / CableIPv6

ttcn/AtsCommon/AtsCommon_Tcpv4_Rfc793_TypesAndValues.ttcn3

+59 −17

Original line number	Diff line number	Diff line
		@@ -8,18 +8,39 @@
		module AtsCommon_Tcpv4_Rfc793_TypesAndValues {

		//LibCommon
		import from LibCommon_BasicTypesAndValues all;
		import from LibCommon_DataStrings all;
		import from LibCommon_BasicTypesAndValues {
		type UInt16, UInt32
		};
		import from LibCommon_DataStrings {
		type Bit1, Bit3, Bit4
		};

		/**
		* @desc TCP segment structure
		* @member srcPort Identifies the sending port
		* @member dstPort Identifies the receiving port
		* @member seqNumber Initial/accumulated sequence number
		* @member ackNumber Next sequence number (if ACK flag set)
		* @member dataOffset Specifies the size of the TCP header in 32-bit words
		* @member reserved Not used. Should be zero
		* @member flags Aka Control bits
		* @member widowSize Size of the receive window
		* @member checksum 16-bit checksum field is used for error-checking
		* @member urgentPointer Offset from the sequence number indicating the last urgent data byte (if URG flag set)
		* @member options Options field
		* @member pad Padding used to ensure that the TCP header ends and data begins on a 32 bit boundary
		* @member payload TCP payload
		* @reference http://tools.ietf.org/html/rfc793
		*/
		type record TCPPv4Msg {
		UInt16 srcPort, // Identifies the sending port
		UInt16 dstPort, // Identifies the receiving port
		UInt16 srcPort,
		UInt16 dstPort,
		UInt32 seqNumber,
		UInt32 ackNumber optional, // present if ack bit set
		Bit4 dataOffset, // Specifies the size of the TCP header in 32-bit words
		UInt32 ackNumber optional,
		Bit4 dataOffset,
		Bit3 reserved('000'B),
		TCPv4Flags flags, // Aka Control bits
		UInt16 widowSize, // Size of the receive window
		TCPv4Flags flags,
		UInt16 widowSize,
		UInt16 checksum,
		UInt16 urgentPointer,
		octetstring options length(0..40),
		@@ -27,19 +48,40 @@ module AtsCommon_Tcpv4_Rfc793_TypesAndValues {
		TCPv4Payload payload
		} // End of type TCPPv4Msg

		/**
		* @desc Aka Control bits
		* @member ns ECN-nonce concealment protection (added to header by RFC 3540)
		* @member cwr Congestion Window Reduced
		* @member ece ECN-Echo indicator
		* @member urg Urgent Pointer field significant
		* @member ack Acknowledgment field significant
		* @member psh Push Function
		* @member rst Reset the connection
		* @member syn Synchronize sequence numbers
		* @member fin No more data from sender
		* @reference http://tools.ietf.org/html/rfc793, http://tools.ietf.org/html/rfc3540
		*/
		type record TCPv4Flags {
		Bit1 ns, // ECN-nonce concealment protection (added to header by RFC 3540)
		Bit1 cwr, // Congestion Window Reduced
		Bit1 ece, // ECN-Echo indicator
		Bit1 urg, // Urgent Pointer field significant
		Bit1 ack, // Acknowledgment field significant
		Bit1 psh, // Push Function
		Bit1 rst, // Reset the connection
		Bit1 syn, // Synchronize sequence numbers
		Bit1 fin // No more data from sender
		Bit1 ns,
		Bit1 cwr,
		Bit1 ece,
		Bit1 urg,
		Bit1 ack,
		Bit1 psh,
		Bit1 rst,
		Bit1 syn,
		Bit1 fin
		} // End of type TCPv4Flags

		/**
		* @desc
		* @member ftpPayload FTP payload
		* @member httpPayload HTTP payload
		* @member rawPayload Raw payload
		*/
		type union TCPv4Payload {
		octetstring ftpPayload, // FIXME Used correct type
		octetstring httpPayload, // FIXME Used correct type
		octetstring rawPayload
		} // End of type TCPv4Payload