K 10 svn:author V 2 kp K 8 svn:date V 27 2018-11-18T10:47:36.789267Z K 7 svn:log V 314 MFC r339470: pf synproxy will do the 3WHS on behalf of the target machine, and once the 3WHS is completed, establish the backend connection. The trigger for "3WHS completed" is the reception of the first ACK. However, we should not proceed if that ACK also has RST or FIN set. PR: 197484 Obtained from: OpenBSD END