From: Vlad Yasevich <vladislav.yasevich@xxxxxx> Date: Tue, 21 Oct 2008 22:08:46 -0400 > If SHUTDOWN is received in SHUTDOWN-PENDING state, enpoint should enter > the SHUTDOWN-RECEIVED state and check the Cumulative TSN Ack field of > the SHUTDOWN chunk (RFC 4960 Section 9.2). If the SHUTDOWN chunk can > acknowledge all of the send DATA chunks, SHUTDOWN-ACK should be sent. > > But now endpoint just silently discarded the SHUTDOWN chunk. > > SHUTDOWN received in SHUTDOWN-PENDING state can happend when the last > SACK is lost by network, or the SHUTDOWN chunk can acknowledge all of > the received DATA chunks. The packet sequence(SACK lost) is like this: > > Endpoint A Endpoint B ULP > (ESTABLISHED) (ESTABLISHED) > > <----------- DATA > <--- shutdown > Enter SHUTDOWN-PENDING state > SACK ----lost----> > > SHUTDOWN(*1) ------------> > > <----------- SHUTDOWN-ACK > > (*1) silently discarded now. > > This patch fix to handle SHUTDOWN in SHUTDOWN-PENDING state as the same > as ESTABLISHED state. > > Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx> > Signed-off-by: Vlad Yasevich <vladislav.yasevich@xxxxxx> Applied. -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
