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dnsjit.core.object.tcp(3)  Library Functions Manual  dnsjit.core.object.tcp(3)

NAME
       dnsjit.core.object.tcp -	A TCP segment header

DESCRIPTION
       A  TCP  segment	header.	  The  data  itself  is	in the dnsjit.core.ob-
       ject.payload object, which is the next object in	the chain after	 pars-
       ing with, for example, dnsjit.filter.layer.

   Attributes
       sport  Source port.

       dport  Destination port.

       seq    Sequence number.

       ack    Acknowledgement number.

       off    Data offset.

       x2     Unused.

       flags  TCP flags.

       win    Window.

       sum    Checksum.

       urp    Urgent pointer.

       opts   Array of bytes with the TCP options found.

       opts_len
	      Length of	the TCP	options.

   Functions
       Tcp:type()
	      Return the textual type of the object.

       Tcp:prev()
	      Return the previous object.

       Tcp:cast()
	      Cast the object to the underlining object	module and return it.

       Tcp:uncast()
	      Cast the object to the generic object module and return it.

       Tcp:copy()
	      Make a copy of the object	and return it.

       Tcp:free()
	      Free  the	object,	should only be used on copies or otherwise al-
	      located.

SEE ALSO
       dnsjit.core.object(3),	 dnsjit.core.object.payload(3),	   dnsjit.fil-
       ter.layer(3)

AUTHORS	and CONTRIBUTORS
       Jerry Lundstrm (DNS-OARC), Tom Kek (CZ.NIC), Petr  paek (ISC)

       Maintained by DNS-OARC

	      https://www.dns-oarc.net/

BUGS
       For issues and feature requests please use:

	      https://github.com/DNS-OARC/dnsjit/issues

       For question and	help please use:

	      admin@dns-oarc.net

dnsjit				     1.4.0	     dnsjit.core.object.tcp(3)

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