module Puppet::Util::NetworkDevice::IPCalc

bits(family) click to toggle source

# File lib/puppet/util/network_device/ipcalc.rb, line 22
def bits(family)
  family == Socket::AF_INET6 ? 128 : 32
end

fullmask(family) click to toggle source

# File lib/puppet/util/network_device/ipcalc.rb, line 26
def fullmask(family)
  (1 << bits(family)) - 1
end

linklocal?(ip) click to toggle source

# File lib/puppet/util/network_device/ipcalc.rb, line 65
def linklocal?(ip)
end

mask(family, length) click to toggle source

# File lib/puppet/util/network_device/ipcalc.rb, line 30
def mask(family, length)
  (1 << (bits(family) - length)) - 1
end

netmask(family, length) click to toggle source

returns ip address netmask from prefix length

# File lib/puppet/util/network_device/ipcalc.rb, line 35
def netmask(family, length)
  IPAddr.new(fullmask(family) & ~mask(family, length) , family)
end

parse(value) click to toggle source

# File lib/puppet/util/network_device/ipcalc.rb, line 12
def parse(value)
  case value
  when /^(#{IP})\/(\d+)$/  # 12.34.56.78/24, a001:b002::efff/120, c444:1000:2000::9:192.168.0.1/112
    [$2.to_i,IPAddr.new($1)]
  when /^(#{IP})$/           # 10.20.30.40,
    value = IPAddr.new(value)
    [bits(value.family),value]
  end
end

prefix_length(netmask) click to toggle source

returns ip address prefix length from netmask

# File lib/puppet/util/network_device/ipcalc.rb, line 45
def prefix_length(netmask)
  mask_addr = netmask.to_i
  return 0 if mask_addr == 0
  length=32
  if (netmask.ipv6?)
    length=128
  end

  mask = mask_addr < 2**length ? length : 128

  mask.times do
      if ((mask_addr & 1) == 1)
          break
      end
      mask_addr = mask_addr >> 1
      mask = mask - 1
  end
  mask
end

wildmask(family, length) click to toggle source

returns an IOS wildmask

# File lib/puppet/util/network_device/ipcalc.rb, line 40
def wildmask(family, length)
  IPAddr.new(mask(family, length) , family)
end

Constants

Public Instance Methods