illumos gate

For future testing of further changes to IPFilter 5.1.2, the IPFilter test suite should be used.

It can be found here:
http://ipfilter.cvs.sourceforge.net/viewvc/ipfilter/ipf-test-suite/

This test suite provides 3 types of tests:
1 host (for parsing of rules and general interaction by the tools with the kernel)
2 host (where the system under test is either the sender or receiver of traffic)
3 host (where the system under test is performing as a router/gateway)
In total there are currently 752 test cases.

Currently all tests pass with 5.1.2, although network and other behavioural variances may interfere with results. Additionally, no leaks are present after running the full test, disabling ipflilter, rebooting with "reboot -d" and checking the crashdump with "findleaks".