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[lwip-devel] [bug #26251] RST process in TIME_WAIT TCP state
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From: |
Oleg Tyshev |
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Subject: |
[lwip-devel] [bug #26251] RST process in TIME_WAIT TCP state |
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Date: |
Fri, 24 Apr 2009 14:04:48 +0000 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.9) Gecko/2009040821 Firefox/3.0.9 GTB5 |
Follow-up Comment #1, bug #26251 (project lwip):
Sorry, for TIME_WAIT exists tcp_timewait_input() and as reply to RST would be
sent ACK without close pcb.
It follows recommendation of RFC 1337.
But why we have following lines in tcp_timewait_input()
I doesn't undestand.
if (TCP_SEQ_GT(seqno + tcplen, pcb->rcv_nxt)) {
pcb->rcv_nxt = seqno + tcplen;
}
It is not check of the window.
Random packet with probability 50% changes rcv_nxt.
Where will be used rcv_nxt later?
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