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Path: /opt/chef.upgrade/embedded/lib/ruby/gems/2.3.0/gems/ohai-8.24.0/lib/ohai/common/

Viewing File: dmi.rb

#
# Author:: Kurt Yoder (ktyopscode@yoderhome.com)
# Copyright:: Copyright (c) 2010 Kurt Yoder
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

module Ohai
  module Common
    module DMI
      # List of IDs and what they translate to
      # from 'man 8 dmidecode'
      # all-lowercase, all non-alphanumeric converted to '_'
      # 128-255 are 'oem_data_[id]'
      # Everything else is 'unknown'
      ID_TO_DESCRIPTION = {
        0 =>   "bios",
        1 =>   "system",
        2 =>   "base_board",
        3 =>   "chassis",
        4 =>   "processor",
        5 =>   "memory_controller",
        6 =>   "memory_module",
        7 =>   "cache",
        8 =>   "port_connector",
        9 =>   "system_slots",
        10 =>  "on_board_devices",
        11 =>  "oem_strings",
        12 =>  "system_configuration_options",
        13 =>  "bios_language",
        14 =>  "group_associations",
        15 =>  "system_event_log",
        16 =>  "physical_memory_array",
        17 =>  "memory_device",
        18 =>  "32_bit_memory_error",
        19 =>  "memory_array_mapped_address",
        20 =>  "memory_device_mapped_address",
        21 =>  "built_in_pointing_device",
        22 =>  "portable_battery",
        23 =>  "system_reset",
        24 =>  "hardware_security",
        25 =>  "system_power_controls",
        26 =>  "voltage_probe",
        27 =>  "cooling_device",
        28 =>  "temperature_probe",
        29 =>  "electrical_current_probe",
        30 =>  "out_of_band_remote_access",
        31 =>  "boot_integrity_services",
        32 =>  "system_boot",
        33 =>  "64_bit_memory_error",
        34 =>  "management_device",
        35 =>  "management_device_component",
        36 =>  "management_device_threshold_data",
        37 =>  "memory_channel",
        38 =>  "ipmi_device",
        39 =>  "power_supply",
        40 =>  "additional_information",
        41 =>  "onboard_devices_extended_information",
        42 =>  "management_controller_host_interfaces",
        126 => "disabled_entries",
        127 => "end_of_table_marker",
      }

      # list of IDs to collect, otherwise we generate pages of hashes about cache chip size and whatnot
      # See OHAI-260. When we can give the user a choice, this will be a default.
      ID_TO_CAPTURE = [ 0, 1, 2, 3, 4, 6, 11 ]

      # look up DMI ID
      def id_lookup(id)
        begin
          id = id.to_i
          if (id >= 128) && (id <= 255)
            id = "oem_data_#{id}"
          elsif DMI::ID_TO_DESCRIPTION.has_key?(id)
            id = DMI::ID_TO_DESCRIPTION[id]
          else
            Ohai::Log.debug("unrecognized header id; falling back to 'unknown'")
            id = "unknown"
          end
        rescue
          Ohai::Log.debug("failed to look up id #{id}, returning unchanged")
          id
        end
      end

      # create simplified convenience access keys for each record type
      # for single occurrences of one type, copy to top level all fields and values
      # for multiple occurrences of same type, copy to top level all fields and values that are common to all records
      def convenience_keys(dmi)
        dmi.each do |type, records|
          in_common = Mash.new
          next unless records.class.to_s == "Mash"
          next unless records.has_key?("all_records")
          records[:all_records].each do |record|
            record.each do |field, value|
              next if value.class.to_s == "Mash"
              next if field.to_s == "application_identifier"
              next if field.to_s == "size"
              next if field.to_s == "record_id"
              translated = field.downcase.gsub(/[^a-z0-9]/, "_")
              value      = value.strip
              if in_common.has_key?(translated)
                in_common[translated] = nil unless in_common[translated] == value
              else
                in_common[translated] = value
              end
            end
          end
          in_common.each do |field, value|
            next if value == nil
            dmi[type][field] = value.strip
          end
        end
      end

      module_function :id_lookup, :convenience_keys
    end
  end
end