From: Xin Long <lucien.xin@xxxxxxxxx> Date: Fri, 17 Feb 2017 16:41:45 +0800 > Now when sending a packet, sctp_transport_dst_check will check if dst > is obsolete by calling ipv4/ip6_dst_check. But they return obsolete > only when adding a new cache, after that when the cache's pmtu is > updated again, it will not trigger transport->dst/pmtu's update. > > It can be reproduced by reducing route's pmtu twice. At the 1st time > client will add a new cache, and transport->pathmtu gets updated as > sctp_transport_dst_check finds it's obsolete. But at the 2nd time, > cache's mtu is updated, sctp client will never send out any packet, > because transport->pmtu has no chance to update. > > This patch is to fix this by also checking if transport pmtu is dst > mtu in sctp_transport_dst_check, so that transport->pmtu can be > updated on time. > > Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx> 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
