Hello Mitani,
thanks for following-up on this, I have submitted your patch to CVS
HEAD.
Best regards,
Leon Woestenberg.
On Tue, 20 Dec 2005 10:07:45 +0900, "Mitani Hiroshi"
<[EMAIL PROTECTED]> said:
> Hi Leon,
>
> I observed lwip stalling at passive-close. TCP state was LAST-ACK.
> Maybe ack-packet was lost. It is not so often, but possible.
> I want lwip to close connection after 2MSL timer expired.
>
> Here is a patch(just cut&paste from other timeouts).
>
> *** tcp.c.orig Tue Dec 20 09:40:52 2005
> --- tcp.c Tue Dec 20 09:43:55 2005
> ***************
> *** 561,566 ****
> --- 561,573 ----
> }
> }
>
> + /* Check if this PCB has stayed too long in LAST-ACK */
> + if (pcb->state == LAST_ACK) {
> + if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL /
> TCP_SLOW_INTERVAL) {
> + ++pcb_remove;
> + LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in
> LAST-ACK\n"));
> + }
> + }
>
> /* If the PCB should be removed, do it. */
> if (pcb_remove) {
>
> Is this meaningless?
>
> Leon Woestenberg wrote:
> > Hello Mitrani Hiroshi,
> >
> > Mitani Hiroshi wrote:
> >
> >>Hi,
> >>
> >>In 1.1.0, the lwip waits ack forever in LAST-ACK state.
> >>Isn't 2-MSL timer necessary to move to CLOSE state?
> >>
> >>
> > Please explain more thoroughly what is the problem and what is the fix?
> > (Sorry, my knowledge of TCP is not in-detail).
> >
> > Regards,
> >
> > Leon.
> >
> >
> > _______________________________________________
> > lwip-users mailing list
> > [email protected]
> > http://lists.nongnu.org/mailman/listinfo/lwip-users
>
>
>
>
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