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[lwip-devel] [bug #26301] Out of order FIN closes half-closed connection

From: Oleg Tyshev
Subject: [lwip-devel] [bug #26301] Out of order FIN closes half-closed connection
Date: Thu, 23 Apr 2009 09:26:51 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/2009040821 Firefox/3.0.9 GTB5

Follow-up Comment #3, bug #26301 (project lwip):

Reply to comment #2

It looks good, but I don't understand why this code for checking
if (pcb->state != CLOSE_WAIT) {
was written early.

For this code condition
if (pcb->rcv_nxt == seqno) {
is already true.

It means
pcb->rcv_nxt += tcplen;
equal to
pcb->rcv_nxt = seqno + tcplen;


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