Top Level Namespace

Defined Under Namespace

Modules: Terrafying Classes: Hash

Constant Summary collapse

IN4MASK = 
0xffffffff
PORT_NAMES = 
{
  22 => "ssh",
  80 => "http",
  443 => "https",
  1194 => "openvpn",
}

Instance Method Summary collapse

Instance Method Details

#cidr_to_split_address(raw_cidr) ⇒ Object 



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# File 'lib/terrafying/components/vpn.rb', line 11

def cidr_to_split_address(raw_cidr)
  cidr = NetAddr::CIDR.create(raw_cidr)

  masklen = 32 - cidr.bits
  maskaddr = ((IN4MASK >> masklen) << masklen)

  maskip = (0..3).map { |i|
    (maskaddr >> (24 - 8 * i)) & 0xff
  }.join('.')

  return "#{cidr.first} #{maskip}"
end

#enrich_ports(ports) ⇒ Object 



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# File 'lib/terrafying/components/ports.rb', line 9

def enrich_ports(ports)
  ports.map { |port|
    if port.is_a?(Numeric)
      port = { upstream_port: port, downstream_port: port }
    end

    if port.has_key?(:number)
      port[:upstream_port] = port[:number]
      port[:downstream_port] = port[:number]
    end

    port = {
      type: "tcp",
      name: PORT_NAMES.fetch(port[:upstream_port], port[:upstream_port].to_s),
    }.merge(port)

    port
  }
end

#from_port(port) ⇒ Object 



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# File 'lib/terrafying/components/ports.rb', line 29

def from_port(port)
  return port unless port_range?(port)
  port.split('-').first.to_i
end

#is_l4_port(port) ⇒ Object 



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# File 'lib/terrafying/components/ports.rb', line 43

def is_l4_port(port)
  port[:type] == "tcp" || port[:type] == "udp"
end

#is_l7_port(port) ⇒ Object 



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# File 'lib/terrafying/components/ports.rb', line 47

def is_l7_port(port)
  port[:type] == "http" || port[:type] == "https"
end

#port_range?(port) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/terrafying/components/ports.rb', line 39

def port_range?(port)
  port.is_a?(String) && port.match(/[0-9]+-[0-9]+/)
end

#to_port(port) ⇒ Object 



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# File 'lib/terrafying/components/ports.rb', line 34

def to_port(port)
  return port unless port_range?(port)
  port.split('-').last.to_i
end