111 lines
3.3 KiB
Ruby
111 lines
3.3 KiB
Ruby
#
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# Author:: Seth Chisamore (<schisamo@opscode.com>)
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# Cookbook Name:: firewall
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# Resource:: default
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#
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# Copyright:: 2011, Opscode, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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require 'poise'
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class Chef
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class Provider::FirewallIptables < Provider
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include Poise
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include Chef::Mixin::ShellOut
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def action_enable
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converge_by('install package iptables and default DROP if no rules exist') do
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package 'iptables' do
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action :install
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end
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# prints all the firewall rules
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# pp new_resource.subresources
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log_current_iptables
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if active?
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Chef::Log.info("#{new_resource} already enabled.")
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else
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Chef::Log.debug("#{new_resource} is about to be enabled")
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shell_out!('iptables -P INPUT DROP')
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shell_out!('iptables -P OUTPUT DROP')
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shell_out!('iptables -P FORWARD DROP')
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shell_out!('ip6tables -P INPUT DROP')
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shell_out!('ip6tables -P OUTPUT DROP')
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shell_out!('ip6tables -P FORWARD DROP')
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Chef::Log.info("#{new_resource} enabled.")
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new_resource.updated_by_last_action(true)
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end
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end
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end
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def action_disable
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if active?
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shell_out!('iptables -P INPUT ACCEPT')
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shell_out!('iptables -P OUTPUT ACCEPT')
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shell_out!('iptables -P FORWARD ACCEPT')
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shell_out!('iptables -F')
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shell_out!('ip6tables -P INPUT ACCEPT')
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shell_out!('ip6tables -P OUTPUT ACCEPT')
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shell_out!('ip6tables -P FORWARD ACCEPT')
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shell_out!('ip6tables -F')
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Chef::Log.info("#{new_resource} disabled")
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new_resource.updated_by_last_action(true)
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else
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Chef::Log.debug("#{new_resource} already disabled.")
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end
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end
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def action_flush
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shell_out!('iptables -F')
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shell_out!('ip6tables -F')
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Chef::Log.info("#{new_resource} flushed.")
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end
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def action_save
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shell_out!('service iptables save')
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shell_out!('service ip6tables save')
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Chef::Log.info("#{new_resource} saved.")
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end
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private
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def active?
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@active ||= begin
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cmd = shell_out!('iptables-save')
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cmd.stdout =~ /INPUT ACCEPT/
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end
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@active_v6 ||= begin
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cmd = shell_out!('ip6tables-save')
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cmd.stdout =~ /INPUT ACCEPT/
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end
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@active && @active_v6
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end
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def log_current_iptables
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cmdstr = 'iptables -L'
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Chef::Log.info("#{new_resource} log_current_iptables (#{cmdstr}):")
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cmd = shell_out!(cmdstr)
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Chef::Log.info(cmd.inspect)
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cmdstr = 'ip6tables -L'
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Chef::Log.info("#{new_resource} log_current_iptables (#{cmdstr}):")
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cmd = shell_out!(cmdstr)
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Chef::Log.info(cmd.inspect)
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rescue
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Chef::Log.info("#{new_resource} log_current_iptables failed!")
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end
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end
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end
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