From: Vlad Yasevich <vladislav.yasevich@xxxxxx> Date: Tue, 21 Oct 2008 22:08:45 -0400 > If SHUTDOWN chunk is received Cumulative TSN Ack beyond the max tsn currently > send, SHUTDOWN chunk be accepted and the association will be broken. New data > is send, but after received SACK it will be drop because TSN in SACK is less > than the Cumulative TSN, data will be retrans again and again even if correct > SACK is received. > > The packet sequence is like this: > > Endpoint A Endpoint B ULP > (ESTABLISHED) (ESTABLISHED) > > <----------- DATA (TSN=x-1) > > <----------- DATA (TSN=x) > > SHUTDOWN -----------> (Now Cumulative TSN=x+1000) > (TSN=x+1000) > <----------- DATA (TSN=x+1) > > SACK -----------> drop the SACK > (TSN=x+1) > <----------- DATA (TSN=x+1)(retrans) > > This patch fix this problem by terminating the association and respond to > the sender with an ABORT. > > 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
