rcv-rst-without-data-syn-sent-ipv6.pkt

//
// Copyright (c) 2016 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
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// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
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//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// SUCH DAMAGE.
//

// Ensure that the reception of a TCP RST
// in the SYN-SENT state does not affect the TCP connection.

--ip_version=ipv6
--tolerance_usecs=75000

// Ensure that all relevant sysctl variables have their default values.
 0.00 `sysctl -w net.inet.tcp.rfc1323=1`
+0.00 `sysctl -w net.inet.tcp.sack.enable=1`
+0.00 `sysctl -w net.inet.tcp.ecn.enable=2`
+0.00 `sysctl -w kern.ipc.maxsockbuf=2097152`
+0.00 `sysctl -w net.inet.tcp.recvspace=65536`
+0.00 `sysctl -w net.inet.tcp.sendspace=32768`
+0.00 `sysctl -w net.inet.tcp.rexmit_initial=1000`
// Flush host cache.
+0.00 `sysctl -w net.inet.tcp.hostcache.purgenow=1`
// Create a TCP socket in SYN-SENT state
+0.00 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0.00 fcntl(3, F_GETFL) = 0x02 (flags O_RDWR)
+0.00 fcntl(3, F_SETFL, O_RDWR | O_NONBLOCK) = 0
+0.00 getsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], [4]) = 0
 1.00 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+0.00 > S  0:0(0)       win 65535 <mss 1440,nop,wscale 6,sackOK,TS val 100 ecr 0>
+0.00 getsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], [4]) = 0
// Now the connection is in SYN-SENT
+0.10 < R  0:0(0)       win 32767
 2.00 > S  0:0(0)       win 65535 <mss 1440,nop,wscale 6,sackOK,TS val 1100 ecr 0>
+0.00 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
+0.00 < S. 0:0(0) ack 1 win 32767 <mss 1440,sackOK,eol,eol>
+0.00 >  . 1:1(0) ack 1 win 65535
+0.00 close(3) = 0
+0.00 > F. 1:1(0) ack 1 win 65535
+0.00 < F. 1:1(0) ack 2 win 32767
+0.00 >  . 2:2(0) ack 2 win 65535