//
// Copyright (c) 2018 Michael Tuexen
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//

--ip_version=ipv4
--tolerance_usecs=150000
--tcp_ts_tick_usecs=1000 /* one tick is a ms */

        `sysctl -w net.inet.tcp.syncookies_only=0`
// The connection setup is limited by net.inet.tcp.keepinit, which is 75 seconds.
+00.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+00.000 fcntl(3, F_GETFL) = 0x02 (flags O_RDWR)
+00.000 fcntl(3, F_SETFL, O_RDWR | O_NONBLOCK) = 0
+00.000 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+00.000 > S  0:0(0)       win 65535 <mss 1460,nop,wscale 6,sackOK,TS val    0 ecr   0>
+00.010 < S  0:0(0)       win 65535 <mss 1460,nop,wscale 6,sackOK,TS val  100 ecr   0>
+00.000 > S. 0:0(0) ack 1 win 65535 <mss 1460,nop,wscale 6,sackOK,TS val   10 ecr 100>
+03.000 > S. 0:0(0) ack 1 win 65535 <mss 1460,nop,wscale 6,sackOK,TS val 3010 ecr 100>
+00.010 <  .  1:1(0) ack 1 win 4000  <nop,nop,TS val  99 ecr 10>
+00.000 send(3, ..., 100, 0) = -1 ENOTCONN (Socket not connected)
+00.010 <  .  1:1(0) ack 1 win 4000  <nop,nop,TS val 100 ecr 3010>
+00.000 send(3, ..., 100, 0) = 100
+00.000 close(3) = 0