Add tests for TCP error conditions.
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@ -565,6 +565,17 @@ mod test {
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}
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}
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#[test]
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fn test_closed() {
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let mut s = socket();
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assert_eq!(s.state(), State::Closed);
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send!(s, TcpRepr {
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control: TcpControl::Syn,
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..SEND_TEMPL
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}, Err(Error::Rejected));
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}
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#[test]
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fn test_handshake() {
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let mut s = socket();
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@ -596,6 +607,64 @@ mod test {
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assert_eq!(s.remote_seq_no, REMOTE_SEQ + 1);
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}
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#[test]
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fn test_no_ack() {
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let mut s = socket();
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s.state = State::Established;
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s.local_endpoint = LOCAL_END;
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s.remote_endpoint = REMOTE_END;
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s.local_seq_no = LOCAL_SEQ + 1;
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s.remote_seq_no = REMOTE_SEQ + 1;
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1,
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ack_number: None,
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..SEND_TEMPL
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}, Err(Error::Malformed));
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}
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#[test]
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fn test_unacceptable_ack() {
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let mut s = socket();
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s.state = State::Established;
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s.local_endpoint = LOCAL_END;
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s.remote_endpoint = REMOTE_END;
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s.local_seq_no = LOCAL_SEQ + 1;
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s.remote_seq_no = REMOTE_SEQ + 1;
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s.tx_buffer.enqueue_slice(b"abcdef");
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// Already acknowledged data.
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1,
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ack_number: Some(LOCAL_SEQ - 1),
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..SEND_TEMPL
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}, Err(Error::Malformed));
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// Data not yet transmitted.
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1,
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ack_number: Some(LOCAL_SEQ + 10),
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..SEND_TEMPL
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}, Err(Error::Malformed));
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}
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#[test]
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fn test_unacceptable_seq() {
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let mut s = socket();
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s.state = State::Established;
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s.local_endpoint = LOCAL_END;
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s.remote_endpoint = REMOTE_END;
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s.local_seq_no = LOCAL_SEQ + 1;
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s.remote_seq_no = REMOTE_SEQ + 1;
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// Data outside of receive window.
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1 + 256,
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ack_number: Some(LOCAL_SEQ + 1),
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..SEND_TEMPL
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}, Err(Error::Malformed));
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}
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#[test]
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fn test_recv_data() {
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let mut s = socket();
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