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cf791b22be
This patch adds a test case to reproduce the SCTP DATA chunk retransmission timeout issue caused by the improper SCTP collision processing in netfilter nf_conntrack_proto_sctp. In this test, client sends a INIT chunk, but the INIT_ACK replied from server is delayed until the server sends a INIT chunk to start a new connection from its side. After the connection is complete from server side, the delayed INIT_ACK arrives in nf_conntrack_proto_sctp. The delayed INIT_ACK should be dropped in nf_conntrack_proto_sctp instead of updating the vtag with the out-of-date init_tag, otherwise, the vtag in DATA chunks later sent by client don't match the vtag in the conntrack entry and the DATA chunks get dropped. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Florian Westphal <fw@strlen.de> |
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