[lwip-devel] [bug #26251] RST process in TIME_WAIT TCP state

[Oleg Tyshev]

Follow-up Comment #11, bug #26251 (project lwip):

Ooops

tcplen already contains length of FIN and SYN:
tcplen = p->tot_len + ((flags & (TCP_FIN | TCP_SYN)) ? 1 : 0);

So will be better

/* RFC 1337: in TIME_WAIT, ignore RST and ACK FINs + any 'acceptable'
segments */
if (((flags & TCP_RST) == 0) && (tcplen > 0)) {
pcb->flags |= TF_ACK_NOW;
return tcp_output(pcb);
}
return ERR_OK;

ACK to the SYN would be acceptable according to RFC 793 too
(page 71)

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?26251>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/