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Viewing changes to lib/puppet/util/network_device/ipcalc.rb

  • Committer: Bazaar Package Importer
  • Author(s): Chuck Short
  • Date: 2011-07-25 01:00:37 UTC
  • mfrom: (1.1.24 upstream) (3.1.25 sid)
  • Revision ID: james.westby@ubuntu.com-20110725010037-875vuxs10eboqgw3
Tags: 2.7.1-1ubuntu1
https://launchpad.net/bugs/641001
* Merge from debian unstable.  Remaining changes:
  - debian/puppetmaster-passenger.postinst: Use cacrl instead of hostcrl to
    set the location of the CRL in apache2 configuration. Fix apache2
    configuration on upgrade as well (LP: #641001)
  - move all puppet dependencies to puppet-common since all the code
    actually located in puppet-common.
  - move libagueas from a recommend to a dependency.

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lib/puppet/util/network_device/ipcalc.rb
 
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require 'puppet/util/network_device'
 
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module Puppet::Util::NetworkDevice::IPCalc
 
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  # This is a rip-off of authstore
 
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  Octet = '(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])'
 
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  IPv4 = "#{Octet}\.#{Octet}\.#{Octet}\.#{Octet}"
 
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  IPv6_full    = "_:_:_:_:_:_:_:_|_:_:_:_:_:_::_?|_:_:_:_:_::((_:)?_)?|_:_:_:_::((_:){0,2}_)?|_:_:_::((_:){0,3}_)?|_:_::((_:){0,4}_)?|_::((_:){0,5}_)?|::((_:){0,6}_)?"
 
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  IPv6_partial = "_:_:_:_:_:_:|_:_:_:_::(_:)?|_:_::(_:){0,2}|_::(_:){0,3}"
 
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  IP = "#{IPv4}|#{IPv6_full}".gsub(/_/,'([0-9a-fA-F]{1,4})').gsub(/\(/,'(?:')
 
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  def parse(value)
 
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    case value
 
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    when /^(#{IP})\/(\d+)$/  # 12.34.56.78/24, a001:b002::efff/120, c444:1000:2000::9:192.168.0.1/112
 
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      [$2.to_i,IPAddr.new($1)]
 
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    when /^(#{IP})$/           # 10.20.30.40,
 
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      value = IPAddr.new(value)
 
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      [bits(value.family),value]
 
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    end
 
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  end
 
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  def bits(family)
 
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    family == Socket::AF_INET6 ? 128 : 32
 
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  end
 
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  def fullmask(family)
 
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    (1 << bits(family)) - 1
 
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  end
 
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  def mask(family, length)
 
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    (1 << (bits(family) - length)) - 1
 
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  end
 
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  # returns ip address netmask from prefix length
 
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  def netmask(family, length)
 
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    IPAddr.new(fullmask(family) & ~mask(family, length) , family)
 
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  end
 
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  # returns an IOS wildmask
 
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  def wildmask(family, length)
 
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    IPAddr.new(mask(family, length) , family)
 
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  end
 
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  # returns ip address prefix length from netmask
 
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  def prefix_length(netmask)
 
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    mask_addr = netmask.to_i
 
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    return 0 if mask_addr == 0
 
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    length=32
 
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    if (netmask.ipv6?)
 
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      length=128
 
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    end
 
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    mask = mask_addr < 2**length ? length : 128
 
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    mask.times do
 
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        if ((mask_addr & 1) == 1)
 
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            break
 
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        end
 
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        mask_addr = mask_addr >> 1
 
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        mask = mask - 1
 
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    end
 
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    mask
 
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  end
 
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  def linklocal?(ip)
 
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  end
 
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end
 
 
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