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I found the source code from a freebsd ftp by I'm not sure it's the code that the OSX version. Also I check apple source code web site but did not find it.

Kara
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CodeFlakes
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1 Answers1

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ipfw is inherited from FreeBSD; you can find current FreeBSD ipfw source here: http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/ipfw/, but OS X's ipfw source is here: http://www.opensource.apple.com/source/network_cmds/network_cmds-329.2.2/.

yan
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  • IPFW is composed of two parts: a userland utility for controlling firewall functionality and a kernel-level packet filter engine. Link to the later in FreeBSD: http://svnweb.freebsd.org/base/head/sys/netpfil/ipfw/ – Marián Černý Nov 12 '13 at 03:30