#! /usr/local/bin/ruby

#  Copyright (c) 2006 Frédéric Senault.  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.
# 3. Neither the name of the author or any contributors may be used to
#    endorse or promote products derived from this software without
#    specific prior written permission.
#
# 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 REGENTS 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
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

class NatTester < Tester
	def register(sdata)
		if(sdata.result =~ /IPNAT/) then
			yield(:nat)
		end
	end
	def initrrdstruct(rrd, id)
		rrd.addds('nat_in',    :COUNTER)
		rrd.addds('nat_out',   :COUNTER)
		rrd.addds('nat_use',   :GAUGE)
		rrd.addds('nat_rules', :GAUGE)
	end
	def getdata(rrd, sdata, id)
		ds = nil
		e = Regexp.new('(nat_[a-z]+)=([0-9.]+)')
		sdata.perfdata.split(/ /).each do |ss|
			m = e.match(ss)
			if(!m.nil?) then
				ds = rrd.addtime(sdata.time) if(ds.nil?)
				ds[m[1]] = m[2]
			end
		end
	end
end