sctp: Fix the SNMP counter of SCTP_MIB_OUTOFBLUES
RFC3873 defined SCTP_MIB_OUTOFBLUES: sctpOutOfBlues OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of out of the blue packets received by the host. An out of the blue packet is an SCTP packet correctly formed, including the proper checksum, but for which the receiver was unable to identify an appropriate association." REFERENCE "Section 8.4 in RFC2960 deals with the Out-Of-The-Blue (OOTB) packet definition and procedures." But OOTB packet INIT, INIT-ACK and SHUTDOWN-ACK(COOKIE-WAIT or COOKIE-ECHOED state) are not counted by SCTP_MIB_OUTOFBLUES. Case 1(INIT): Endpoint A Endpoint B (CLOSED) (CLOSED) INIT ----------> <---------- ABORT Case 2(INIT-ACK): Endpoint A Endpoint B (CLOSED) (CLOSED) INIT-ACK ----------> <---------- ABORT Case 3(SHUTDOWN-ACK): Endpoint A Endpoint B (CLOSED) (CLOSED) <---------- INIT SHUTDOWN-ACK ----------> <---------- SHUTDOWN-COMPLETE Case 4(SHUTDOWN-ACK): Endpoint A Endpoint B (CLOSED) (COOKIE-ECHOED) SHUTDOWN-ACK ----------> <---------- SHUTDOWN-COMPLETE This patch fixed the problem. Signed-off-by:Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by:
Vlad Yasevich <vladislav.yasevich@hp.com>
parent
536428a9
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