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Use a more specific log message for keep-alive or probe TCP packets.

This commit is contained in:
whitequark 2017-12-21 10:39:54 +00:00
parent df65c0e6ae
commit bd40265d3a
1 changed files with 8 additions and 3 deletions
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11
src/socket/tcp.rs
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@ -907,8 +907,13 @@ impl<'a> TcpSocket<'a> {
segment_in_window = false;
}
if !((window_start <= segment_start && segment_start <= window_end) &&
(window_start <= segment_end && segment_end <= window_end)) {
if segment_start == segment_end && segment_end == window_start - 1 {
net_debug!("{}:{}:{}: received a keep-alive or window probe packet, \
will send an ACK",
self.meta.handle, self.local_endpoint, self.remote_endpoint);
segment_in_window = false;
} else if !((window_start <= segment_start && segment_start <= window_end) &&
(window_start <= segment_end && segment_end <= window_end)) {
net_debug!("{}:{}:{}: segment not in receive window \
({}..{} not intersecting {}..{}), will send challenge ACK",
self.meta.handle, self.local_endpoint, self.remote_endpoint,
@ -1166,7 +1171,7 @@ impl<'a> TcpSocket<'a> {
// Note that we change the transmitter state here.
// This is fine because smoltcp assumes that it can always transmit zero or one
// packets for every packet it receives.
net_trace!("{}:{}:{}: acknowledging incoming segment",
net_trace!("{}:{}:{}: ACKing incoming segment",
self.meta.handle, self.local_endpoint, self.remote_endpoint);
self.remote_last_ack = Some(self.remote_seq_no + self.rx_buffer.len());
Ok(Some(self.ack_reply(ip_repr, &repr)))