KEP-Software : Information about component 'User'

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Queried object
Refers to a base object, e.g. a base protocol or interface.
Refers to a child of the object.
Refers to a dependency. If it changes then this might be impacted as well.
This is an extra visible attribute of the object.
The given object refers to this object. Referrals are only of the main object.

			User
description				Represents an external user.
start-flow			User-flows
type			external
protocol			TCP	TCP - Protocol description.
	abbreviation		TCP	Transmission Control Protocol
	section		Header Format
		document	RFC-793	Section 3.1
		ascii	Header Layout	0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Source Port \| Destination Port \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Sequence Number \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Acknowledgment Number \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Data \| \|U\|A\|P\|R\|S\|F\| \| \| Offset\| Reserved \|R\|C\|S\|S\|Y\|I\| Window \| \| \| \|G\|K\|H\|T\|N\|N\| \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Checksum \| Urgent Pointer \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| Options \| Padding \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \| data \| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
		bits16	Source Port	The source port number.
		bits16	Destination Port	The destination port number.
		bits32	Sequence Number	The sequence number of the first data octet in this segment (except when SYN is present). If SYN is present the sequence number is the initial sequence number (ISN) and the first data octet is ISN+1.
		bits32	Ack Number	If the ACK control bit is set this field contains the value of the next sequence number the sender of the segment is expecting to receive. Once a connection is established this is always sent.
		bits4	Data Offset	The number of 32 bit words in the TCP Header. This indicates where the data begins. The TCP header (even one including options) is an integral number of 32 bits long.
		bits6	Reserved	Reserved for future use. Must be zero.
		section	Control Bits	6 bits (from left to right)
		bits16	Window	The number of data octets beginning with the one indicated in the acknowledgment field which the sender of this segment is willing to accept.
		bits16	Checksum	The checksum field is the 16 bit one's complement of the one's complement sum of all 16 bit words in the header and text.
		bits16	Urgent Pointer	This field communicates the current value of the urgent pointer as a positive offset from the sequence number in this segment. The urgent pointer points to the sequence number of the octet following the urgent data. This field is only be interpreted in segments with the URG control bit set.
		bits24	Options	Variable length. Options may occupy space at the end of the TCP header and are a multiple of 8 bits in length. All options are included in the checksum. See spec.
		bits8	Padding	Variable Length. The TCP header padding is used to ensure that the TCP header ends and data begins on a 32 bit boundary. The padding is composed of zeros.
	section		Messages	Messages used for the msg flow
		message	ACK	Acknowledgment
		message	SYN	Synchronize sequence numbers
		message	SYN+ACK	An accepted synchronization or connetion.
		message	DATA	Used to denote data being transmittednothing (no ack).
		message	DATA+ACK	Used to denote data with implicit ack.
		message	RST	Reset the connection
		message	FIN	No more data from sender
		message	FIN+ACK	The FINished msg to tell the connection is being closed.
section			Visible actions
	action		start-telnet	User starts a telnet process.
	action		exit-telnet	The telnet process was stopped.
	action		enter-ls	The user wants to view files in the current directory.
	action		enter-cd	The user wants to chnage the current working diretcory.
	action		enter-exit	The user wants to exit the bash and telnet session.
	action		login-succeeded	The login was succesful
	action		login-failed	The login failed
section			Intended in future
	action		ssh-impl-intended	SSH implementation is intended in future.
	action		ftp-impl-intended	FTP implementation is intended in future.
	action		sftp-impl-intended	SFTP implementation is intended in future.
	action		smtp-impl-intended	STP implementation is intended in future.
	action		http-impl-intended	HTTP implementation is intended in future.
	action		https-impl-intended	HTTPS implementation is intended in future.
	action		start-telnet	User starts a telnet process.
	message		tcp-cl-connect	API call to initiate a connection towards the server.
	message		tcp-cl-connected	Informs APP that connnection succeeded.
	message		tcp-cl-failed	Informs APP that connection failed
	message		tcp-cl-connected	Informs APP that connnection succeeded.
	message		tcp-cl-failed	Informs APP that connection failed
	action		exit-telnet	The telnet process was stopped.
	message		tcp-cl-receive	Return received data the app.
	message		tcp-cl-send	API calls to send date to the server.
	message		tcp-cl-receive	Return received data the app.
	message		tcp-cl-send	API calls to send date to the server.
	message		tcp-cl-receive	Return received data the app.
	action		login-failed	The login failed
	message		tcp-cl-send	API calls to send date to the server.
	component		TCP-CL	Represents an TCP Client layer.
	message		tcp-cl-close	API call to initate session shutdown.
	action		exit-telnet	The telnet process was stopped.
	message		tcp-cl-receive	Return received data the app.
	action		login-succeeded	The login was succesful
	message		tcp-cl-receive	Return received data the app.
	action		enter-cd	The user wants to chnage the current working diretcory.
	message		tcp-cl-send	API calls to send date to the server.
	message		tcp-cl-receive	Return received data the app.
	action		enter-ls	The user wants to view files in the current directory.
	message		tcp-cl-send	API calls to send date to the server.
	message		tcp-cl-receive	Return received data the app.
	action		enter-exit	The user wants to exit the bash and telnet session.
	message		tcp-cl-send	API calls to send date to the server.
	message		tcp-cl-receive	Return received data the app.
	message		tcp-cl-closed	Informs APP that connection is closed.
	action		exit-telnet	The telnet process was stopped.
	action		ssh-impl-intended	SSH implementation is intended in future.
	action		ftp-impl-intended	FTP implementation is intended in future.
	action		sftp-impl-intended	SFTP implementation is intended in future.
	action		smtp-impl-intended	STP implementation is intended in future.
	action		http-impl-intended	HTTP implementation is intended in future.
	action		https-impl-intended	HTTPS implementation is intended in future.

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