On Tue, Nov 20, 2007 at 10:50:41AM +0100, Jan Srzednicki wrote:

> And the state becomes:
> 
> self tcp MY_IP_HERE:12525 <- MY_IP_HERE:64829       ESTABLISHED:FIN_WAIT_2
>    [390096685 + 66608] wscale 1  [3173294128 + 66608] wscale 1
>    age 00:00:04, expires in 00:00:05, 4:3 pkts, 441:168 bytes, rule 30
>    id: 47207d980002e600 creatorid: 082298e6
> self tcp MY_IP_HERE:64829 -> MY_IP_HERE:12525       FIN_WAIT_2:ESTABLISHED
>    [3173294128 + 66608] wscale 1  [390096685 + 66608] wscale 1
>    age 00:00:04, expires in 00:00:05, 4:3 pkts, 441:168 bytes, rule 30
>    id: 47207d980002e5ff creatorid: 082298e6

That's fine so far, ESTABLISHED:FIN_WAIT_2 is correct in this case.

Look at your /usr/src/sys/contrib/pf/net/pf.c, in pf_test_state_tcp()
there's a section like

                /* update expire time */
                (*state)->expire = time_second;
                if (src->state >= TCPS_FIN_WAIT_2 &&
                    dst->state >= TCPS_FIN_WAIT_2)
                        (*state)->timeout = PFTM_TCP_CLOSED;
                else if (src->state >= TCPS_CLOSING &&
                    dst->state >= TCPS_CLOSING)
                        (*state)->timeout = PFTM_TCP_FIN_WAIT;
                else if (src->state < TCPS_ESTABLISHED ||
                    dst->state < TCPS_ESTABLISHED)
                        (*state)->timeout = PFTM_TCP_OPENING;
                else if (src->state >= TCPS_CLOSING ||
                    dst->state >= TCPS_CLOSING)
                        (*state)->timeout = PFTM_TCP_CLOSING;
                else
                        (*state)->timeout = PFTM_TCP_ESTABLISHED;

In 6.2-release this was, according to 
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/contrib/pf/net/pf.c?rev=1.34.2.4;content-type=text%2Fplain

                /* update expire time */
                (*state)->expire = time_second;
                if (src->state >= TCPS_FIN_WAIT_2 &&
                    dst->state >= TCPS_FIN_WAIT_2)
                        (*state)->timeout = PFTM_TCP_CLOSED;
                else if (src->state >= TCPS_FIN_WAIT_2 ||
                    dst->state >= TCPS_FIN_WAIT_2)
                        (*state)->timeout = PFTM_TCP_FIN_WAIT;
                else if (src->state < TCPS_ESTABLISHED ||
                    dst->state < TCPS_ESTABLISHED)
                        (*state)->timeout = PFTM_TCP_OPENING;
                else if (src->state >= TCPS_CLOSING ||
                    dst->state >= TCPS_CLOSING)
                        (*state)->timeout = PFTM_TCP_CLOSING;
                else
                        (*state)->timeout = PFTM_TCP_ESTABLISHED;

Note the slight difference, which explains your observations.

It looks like this change was never backported/merged to RELENG_6.

Try the newer (first) version, it should resolve your problem.

Daniel
_______________________________________________
freebsd-pf@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-pf
To unsubscribe, send any mail to "[EMAIL PROTECTED]"

Reply via email to