Module: Linux::Ip::Route

Defined in:
lib/linux/ip/route.rb

Defined Under Namespace

Classes: IpRoute

Class Method Summary collapse

Class Method Details

.parse ⇒ Object 



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# File 'lib/linux/ip/route.rb', line 121

def self.parse
  parse_from_lines(IO.popen("ip -4 route show").read.lines.to_a + IO.popen("ip -6 route show").read.lines.to_a)
end

.parse_from_lines(lines) ⇒ Object

23: br202: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

link/ether d0:27:88:d1:01:6d brd ff:ff:ff:ff:ff:ff
inet 10.10.103.11/22 brd 10.10.103.255 scope global br202
   valid_lft forever preferred_lft forever
inet6 fe80::84c6:95ff:feb7:d76d/64 scope link
   valid_lft forever preferred_lft forever



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# File 'lib/linux/ip/route.rb', line 88

def self.parse_from_lines(lines)
  ip_route = IpRoute.new
  iface = nil
  lines.each do |line|
      line = line.strip.chomp
      dev_m = /^([0-9a-fA-F\.\:\/]+)\s+dev\s+([a-z0-9\.]+)\s*(.*)$/.match(line)
      if dev_m
        #puts "Dev #{dev_m[2]} -> #{dev_m.inspect}"
        ip_route.add_dev(dev_m[2], dev_m[1], dev_m[3])
      else
        via_m = /^([0-9a-fA-F\.\:\/]+|default)\s+via\s+([a-z0-9\.\:]+)\s+dev\s+([a-z0-9\.]+)\s*(.*)$/.match(line)
        if via_m
          #puts "Via #{via_m[3]} -> #{via_m.inspect}"
          ip_route.add_via(via_m[3], via_m[1], via_m[2], via_m[4])
        else
          direct_m = /^(blackhole)\s+([0-9a-fA-F\.\:\/]+)$/.match(line)
          if direct_m
            ip_route.add_via(direct_m[1], direct_m[2], nil, "")
          else
            # unreachable 2a04:2f80::/29 dev lo  metric 1024  error -101
            unreachable_m = /^(unreachable)\s+([0-9a-fA-F\.\:\/]+)\s+dev\s+([a-z0-9\.]+)\s+(.*)$/.match(line)
            if unreachable_m
              ip_route.add_dev(unreachable_m[3], unreachable_m[2], unreachable_m[1]+" "+unreachable_m[4])
            else
              puts "> #{line}"
            end
          end
        end
      end
  end
  ip_route
end