diff options
| author | Evan Huus <eapache@gmail.com> | 2014-06-17 23:12:58 -0700 |
|---|---|---|
| committer | Evan Huus <eapache@gmail.com> | 2014-06-18 15:07:08 +0000 |
| commit | b5a462b087bdd7670e1a69786ebbe3f073084ac3 (patch) | |
| tree | f69e032721848b150833fce9ef5bc98e6b414271 /epan/dissectors/packet-tcp.h | |
| parent | cd56eb970f143aec3d85323c5ee1eeeda66040cf (diff) | |
Try to calculate the initial RTT of tcp conns
This (if it works well) will let us do much more accurate out-of-order
detection, which is currently otherwise hardcoded to 3ms. Ask Jörg for details.
Change-Id: Ie0662723946edeaea1e43958bf7f5158f09dde71
Reviewed-on: https://code.wireshark.org/review/2367
Reviewed-by: Evan Huus <eapache@gmail.com>
Diffstat (limited to 'epan/dissectors/packet-tcp.h')
| -rw-r--r-- | epan/dissectors/packet-tcp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/epan/dissectors/packet-tcp.h b/epan/dissectors/packet-tcp.h index 1fcf7d2f57..e01b2a6adf 100644 --- a/epan/dissectors/packet-tcp.h +++ b/epan/dissectors/packet-tcp.h @@ -239,6 +239,15 @@ struct tcp_analysis { */ nstime_t ts_first; + /* Remember the timestamp of the most recent SYN in this conversation in + * order to calculate the first_rtt below. Not necessarily ts_first, if + * the SYN is retransmitted. */ + nstime_t ts_mru_syn; + + /* If we have the handshake, remember the RTT between the initial SYN + * and ACK for use detecting out-of-order segments. */ + nstime_t ts_first_rtt; + /* Remember the timestamp of the frame that was last seen in this * tcp conversation to be able to calculate a delta time compared * to previous frame in this conversation |