//===============================================================================
//
// SHUTDOWN chunk - tests for too short and too long
//
//
// 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
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | Type = 7 | Chunk Flags | Length = 8 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | Cumulative TSN Ack |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
//
//
// NOTE: USE_CORRECT_LENGTH_VALUE uses the correct length of the chunk as
// if there were no modifications to its actual size.
//
// A SHUTDOWN chunk is normally created as an 8-byte chunk, so
// the Length field would be set to 8, regardless of how many
// bytes long the chunk actually is.
//
// USE_ACTUAL_LENGTH uses the actual physical packet size as if it
// were created normally.
//
// A SHUTDOWN chunk is normally 8 bytes long, so the chunk would
// actually by 8 bytes, regardless of what the Length field is
// set to.
//
SCENARIO SCTP_Test_SHUTDOWN_TOO_SHORT;
TESTPURPOSE 'Send specific SHUTDOWN packets that are too short.';
START;
CALL SCTP_Reset_Connection;
// NOTE: The real packet would be 8 bytes long
// (i.e., an 8-byte packet that says it's 8 bytes long)
// This sends an 8-byte chunk that says it's 4 bytes
//
OUTPUT SHUTDOWN_TOO_SHORT(
4, // chunk Length field
USE_ACTUAL_LENGTH, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends a 4-byte chunk that says it's 8 bytes
//
OUTPUT SHUTDOWN_TOO_SHORT(
USE_CORRECT_LENGTH_VALUE, // chunk Length field
4, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
VERDICT(PASS);
STOP;
ENDSCENARIO;
SCENARIO SCTP_Test_SHUTDOWN_TOO_LONG;
TESTPURPOSE 'Send specific SHUTDOWN packets that are too long.';
START;
CALL SCTP_Reset_Connection;
// NOTE: The real packet would be 8 bytes long
// (i.e., an 8-byte packet that says it's 8 bytes long)
// This sends a regular normal packet (both the Length value and
// the physical size of the chunk are "use the real value")
//
OUTPUT SHUTDOWN_TOO_LONG(
USE_CORRECT_LENGTH_VALUE, // chunk Length field
USE_ACTUAL_LENGTH, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends an 8-byte chunk that says it's 16 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
16, // chunk Length field
USE_ACTUAL_LENGTH, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends a 32-byte chunk that says it's 8 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
USE_CORRECT_LENGTH_VALUE, // chunk Length field
32, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends a 20-byte chunk that says it's 20 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
20, // chunk Length field
20, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends a 7-byte chunk that says it's 7 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
7, // chunk Length field
7, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends a 7-byte chunk that says it's 8 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
7, // chunk Length field
USE_ACTUAL_LENGTH, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
// This sends an 8-byte chunk that says it's 7 bytes
//
OUTPUT SHUTDOWN_TOO_LONG(
USE_CORRECT_LENGTH_VALUE, // chunk Length field
7, // actual size of chunk
Cumulative_Peer_TSN + Shutdown_TSN_OFFSET_VAL)
VIA SCTP_PCO1;
VERDICT(PASS);
STOP;
ENDSCENARIO;
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