Class: Inspec::Resources::BsdInterface

Inherits:
InterfaceInfo show all
Defined in:
lib/inspec/resources/interface.rb

Instance Attribute Summary

Attributes inherited from InterfaceInfo

#inspec

Instance Method Summary collapse

Methods inherited from InterfaceInfo

#initialize

Methods included from Converter

#convert_to_i, to_boolean

Constructor Details

This class inherits a constructor from Inspec::Resources::InterfaceInfo

Instance Method Details

#interface_info(iface) ⇒ Object 



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# File 'lib/inspec/resources/interface.rb', line 115

def interface_info(iface)
  cmd = inspec.command("ifconfig #{iface}")
  return nil if cmd.exit_status.to_i != 0

  lines = cmd.stdout.split("\n")
  iface_info = {
    name: iface,
    ipv4_addresses: [], # Actually CIDRs
    ipv6_addresses: [], # are expected to go here
  }

  iface_info[:up] = lines[0].include?("UP")
  lines.each do |line|
    # IPv4 case
    m = line.match(/^\s+inet\s+((?:\d{1,3}\.){3}\d{1,3})\s+netmask\s+(0x[a-f0-9]{8})/)
    if m
      ip = m[1]
      hex_mask = m[2]
      cidr = hex_mask.to_i(16).to_s(2).count("1")
      iface_info[:ipv4_addresses] << "#{ip}/#{cidr}"
      next
    end

    # IPv6 case
    m = line.match(/^\s+inet6\s+([a-f0-9:]+)%#{iface}\s+prefixlen\s+(\d+)/)
    if m
      ip = m[1]
      cidr = m[2]
      iface_info[:ipv6_addresses] << "#{ip}/#{cidr}"
      next
    end

    # Speed detect, crummy - can't detect wifi, finds any number in the string
    # Ethernet autoselect (1000baseT <full-duplex>)
    m = line.match(/^\s+media:\D+(\d+)/)
    if m
      iface_info[:speed] = m[1].to_i
      next
    end
  end

  iface_info
end