class DHCP::OptStaticRoutes

Class for DHCP option 33 (static routes) - Use option 121 instead if possible WARNING: Option 33 can only handle class A, B, or C networks, not classless networks with an arbitrary netmask.

Public Instance Methods

bin_to_data(data) click to toggle source

# File lib/dhcp/options.rb, line 349
def bin_to_data(data)
  [IPAddress::IPv4::parse_classful_data(data[0,4]).net.to_string,  IPAddress::IPv4::parse_data(data[4,4]).to_s]
end

data_to_bin(data) click to toggle source

# File lib/dhcp/options.rb, line 334
def data_to_bin(data)
  raise "Invalid static route" unless data.is_a?(Array) && data.size == 2
  net, gateway = *data
  net = IPAddress::IPv4.new(net)
  raise "Invalid classful static route network" unless net.network?
  raise "Invalid classful static route network" unless (
    (net.a? && net.prefix == 8 ) ||
    (net.b? && net.prefix == 16) ||
    (net.c? && net.prefix == 24)
  )
  gateway = IPAddress::IPv4.new("#{gateway}/#{net.prefix}")
  raise "Invalid classful static route gateway" unless gateway.member?(net)
  net.data + gateway.data
end

is_list?(list) click to toggle source

# File lib/dhcp/options.rb, line 321
def is_list?(list)
  raise "Invalid route list/entry" unless list.is_a?(Array)
  if list.size == 2
    return false if list[0].is_a?(String) && list[1].is_a?(String)
    return true  if list[0].is_a?(Array)  && list[1].is_a?(Array) 
    raise "Invalid route list/entry"
  end
  list.each do |item|
    raise "Invalid route list" unless item.is_a?(Array) && item[0].is_a?(String) && item[1].is_a?(String)
  end
  return true
end

to_s() click to toggle source

# File lib/dhcp/options.rb, line 353
def to_s
  opt_header + '=[' + map{|i| i[0] + '=>' + i[1]}.join(',') + ']'
end