class Chef::Provider::Route
Constants
- MASK
Attributes
is_running[RW]
Public Instance Methods
action_add()
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# File lib/chef/provider/route.rb, line 129 def action_add # check to see if load_current_resource found the route if is_running logger.trace("#{new_resource} route already active - nothing to do") else command = generate_command(:add) converge_by("run #{command.join(' ')} to add route") do shell_out_compact!(command) logger.info("#{new_resource} added") end end # for now we always write the file (ugly but its what it is) generate_config end
action_delete()
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# File lib/chef/provider/route.rb, line 145 def action_delete if is_running command = generate_command(:delete) converge_by("run #{command.join(' ')} to delete route ") do shell_out_compact!(command) logger.info("#{new_resource} removed") end else logger.trace("#{new_resource} route does not exist - nothing to do") end # for now we always write the file (ugly but its what it is) generate_config end
config_file_contents(action, options = {})
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# File lib/chef/provider/route.rb, line 231 def config_file_contents(action, options = {}) content = "" case action when :add content << "# #{options[:comment]}\n" if options[:comment] content << (options[:target]).to_s content << "/#{MASK[options[:netmask].to_s]}" if options[:netmask] content << " via #{options[:gateway]}" if options[:gateway] content << " metric #{options[:metric]}" if options[:metric] content << "\n" end content end
generate_command(action)
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# File lib/chef/provider/route.rb, line 213 def generate_command(action) target = new_resource.target target = "#{target}/#{MASK[new_resource.netmask.to_s]}" if new_resource.netmask case action when :add command = [ "ip", "route", "replace", target ] command += [ "via", new_resource.gateway ] if new_resource.gateway command += [ "dev", new_resource.device ] if new_resource.device command += [ "metric", new_resource.metric ] if new_resource.metric when :delete command = [ "ip", "route", "delete", target ] command += [ "via", new_resource.gateway ] if new_resource.gateway end command end
generate_config()
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# File lib/chef/provider/route.rb, line 160 def generate_config conf = {} case node[:platform] when "centos", "redhat", "fedora" # walk the collection run_context.resource_collection.each do |resource| next unless resource.is_a? Chef::Resource::Route # default to eth0 dev = if resource.device resource.device else "eth0" end conf[dev] = "" if conf[dev].nil? case @action when :add conf[dev] << config_file_contents(:add, comment: resource.comment, target: resource.target, metric: resource.metric, netmask: resource.netmask, gateway: resource.gateway) if resource.action == [:add] when :delete # need to do this for the case when the last route on an int # is removed conf[dev] << config_file_contents(:delete) end end conf.each_key do |k| if new_resource.target == "default" network_file_name = "/etc/sysconfig/network" converge_by("write route default route to #{network_file_name}") do logger.trace("#{new_resource} writing default route #{new_resource.gateway} to #{network_file_name}") if ::File.exist?(network_file_name) network_file = ::Chef::Util::FileEdit.new(network_file_name) network_file.search_file_replace_line /^GATEWAY=/, "GATEWAY=#{new_resource.gateway}" network_file.insert_line_if_no_match /^GATEWAY=/, "GATEWAY=#{new_resource.gateway}" network_file.write_file else network_file = ::File.new(network_file_name, "w") network_file.puts("GATEWAY=#{new_resource.gateway}") network_file.close end end else network_file_name = "/etc/sysconfig/network-scripts/route-#{k}" converge_by("write route route.#{k}\n#{conf[k]} to #{network_file_name}") do network_file = ::File.new(network_file_name, "w") network_file.puts(conf[k]) logger.trace("#{new_resource} writing route.#{k}\n#{conf[k]}") network_file.close end end end end end
hex2ip(hex_data)
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# File lib/chef/provider/route.rb, line 65 def hex2ip(hex_data) # Cleanup hex data hex_ip = hex_data.to_s.downcase.gsub(/[^0-9a-f]/, "") # Check hex data format (IP is a 32bit integer, so should be 8 chars long) return nil if hex_ip.length != hex_data.length || hex_ip.length != 8 # Extract octets from hex data octets = hex_ip.scan(/../).reverse.collect { |octet| [octet].pack("H2").unpack("C").first } # Validate IP ip = octets.join(".") begin IPAddr.new(ip, Socket::AF_INET).to_s rescue ArgumentError logger.trace("Invalid IP address data: hex=#{hex_ip}, ip=#{ip}") return nil end end
load_current_resource()
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# File lib/chef/provider/route.rb, line 85 def load_current_resource self.is_running = false # cidr or quad dot mask new_ip = if new_resource.target == "default" IPAddr.new(new_resource.gateway) elsif new_resource.netmask IPAddr.new("#{new_resource.target}/#{new_resource.netmask}") else IPAddr.new(new_resource.target) end # For linux, we use /proc/net/route file to read proc table info return if node[:os] != "linux" route_file = ::File.open("/proc/net/route", "r") # Read all routes while (line = route_file.gets) # Get all the fields for a route _, destination, gateway, _, _, _, _, mask = line.split # Convert hex-encoded values to quad-dotted notation (e.g. 0064A8C0 => 192.168.100.0) destination = hex2ip(destination) gateway = hex2ip(gateway) mask = hex2ip(mask) # Skip formatting lines (header, etc) next unless destination && gateway && mask logger.trace("#{new_resource} system has route: dest=#{destination} mask=#{mask} gw=#{gateway}") # check if what were trying to configure is already there # use an ipaddr object with ip/mask this way we can have # a new resource be in cidr format (i don't feel like # expanding bitmask by hand. # running_ip = IPAddr.new("#{destination}/#{mask}") logger.trace("#{new_resource} new ip: #{new_ip.inspect} running ip: #{running_ip.inspect}") self.is_running = true if running_ip == new_ip && gateway == new_resource.gateway end route_file.close end