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# Subspace - 2D asteroids-style space game - http://sscentral.com
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# Pattern attributes: marginal veryfast fast
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# Protocol groups: game
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# Wiki: http://www.protocolinfo.org/wiki/Subspace
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# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
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#
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# By Myles Uyema <mylesuyema AT gmail.com>
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#
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# This pattern matches the initial 2 packets of the client-server
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# 'handshake' when joining a Zone.
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#
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# The first packet is an 8 byte UDP payload sent from client
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# 0x00 0x01 0x?? 0x?? 0x?? 0x?? 0x11
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# The next packet is a 12 byte UDP response from server
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# 0x00 0x10 0x?? 0x?? 0x?? 0x?? 0x?? 0x?? 0x?? 0x?? 0x01 0x00
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#
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# l7-filter strips out the null bytes, leaving me with this pattern
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subspace
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^\x01....\x11\x10........\x01$
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