NAME

  InvalidLengthInInitAck.seq - INIT-ACK chunk is received with invalid chunk length


PURPOSE

  To check that if INIT-ACK chunk is received with invalid chunk length, the
  endpoint should send ABORT message with a Protocol Violation error cause.


SYNOPSIS

  ./InvalidLengthInInitAck.seq [-tooloption ...] -pkt ./InvalidLengthInInitAck.def
    -tooloption : v6eval tool option
  See Also: ../common/STD_PKT_COMMON.def
            ../common/SCTP_COMMON.def


PRE-TEST CONDITION

  Association is not established between endpoint A and B. Arrange data 
  in endpoint A such that INIT-ACK chunk with invalid chunk length is
  sent to endpoint B.


TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (CLOSED)                             (CLOSED)
                  <-----------------    INIT
  INIT-ACK        ----------------->
  (with Invalid Chunk Length)
                  <-----------------    ABORT
                                        (Protocol Violation)
  TEST DESCRIPTION:
  1. Send INIT-ACK chunk from endpoint A to B with invalid chunk
     length.
  2. Check A: ABORT should be received at endpoint A.
  3. Check B: Error cause in ABORT is set to "Protocol Violation".


NOTE

  None


REFERENCE

  RFC 4960
  3.3.10.13.  Protocol Violation (13)
    Cause of error
    --------------
    This error cause MAY be included in ABORT chunks that are sent
    because an SCTP endpoint detects a protocol violation of the peer
    that is not covered by the error causes described in Section 3.3.10.1
    to Section 3.3.10.12.  An implementation MAY provide additional
    information specifying what kind of protocol violation has been
    detected.
        0                   1                   2                   3
        0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
       |         Cause Code=13         |      Cause Length=Variable    |
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
       /                    Additional Information                     /
       \                                                               \
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+