parent
cefbed6e52
commit
a2302412e7
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@ -1438,10 +1438,14 @@ impl<'a> TcpSocket<'a> {
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// ACK packets in LAST-ACK state change it to CLOSED.
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(State::LastAck, TcpControl::None) => {
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if ack_of_fin {
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// Clear the remote endpoint, or we'll send an RST there.
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self.set_state(State::Closed);
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self.local_endpoint = IpEndpoint::default();
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self.remote_endpoint = IpEndpoint::default();
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} else {
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self.timer.set_for_idle(timestamp, self.keep_alive);
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}
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}
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_ => {
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@ -3489,6 +3493,34 @@ mod test {
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assert_eq!(s.state, State::Closed);
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}
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#[test]
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fn test_last_ack_ack_not_of_fin() {
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let mut s = socket_last_ack();
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recv!(s, [TcpRepr {
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control: TcpControl::Fin,
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seq_number: LOCAL_SEQ + 1,
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ack_number: Some(REMOTE_SEQ + 1 + 1),
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..RECV_TEMPL
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}]);
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assert_eq!(s.state, State::LastAck);
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// ACK received that doesn't ack the FIN: socket should stay in LastAck.
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1 + 1,
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ack_number: Some(LOCAL_SEQ + 1),
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..SEND_TEMPL
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});
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assert_eq!(s.state, State::LastAck);
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// ACK received of fin: socket should change to Closed.
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send!(s, TcpRepr {
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seq_number: REMOTE_SEQ + 1 + 1,
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ack_number: Some(LOCAL_SEQ + 1 + 1),
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..SEND_TEMPL
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});
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assert_eq!(s.state, State::Closed);
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}
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#[test]
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fn test_last_ack_close() {
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let mut s = socket_last_ack();
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