Elements / Ctx

TCPIn

entry point of a TCP path in the stack of the middlebox

SYNOPSIS§

TCPIn(FLOWDIRECTION, OUTNAME, RETURNNAME)

Ports: 1 input, 1-2 outputs
Processing: agnostic, but output 1 is push

DESCRIPTION§

This element is the entry point of a TCP path in the stack of the middlebox by which all TCP packets must go before their TCP content is processed. Each path containing a TCPIn element must also contain a TCPOut element

• FLOWDIRECTION — ID of the path for the connection (0 or 1). The return path must have the other ID. Thus, each direction of a TCP connection has a different ID.
• OUTNAME — Name of the TCPOut element on this path.
• RETURNNAME — Name of the TCPIn element on the other path of the connection.

SEE ALSO§

TCPOut

Generated by click-elem2man from ../elements/ctx/tcpin.hh:112 on 2026/11/02.