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#
# 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",
}.freeze
# list of IDs to collect from config or default to a sane list that prunes
# away some of the less useful IDs
ID_TO_CAPTURE = [ 0, 1, 2, 3, 4, 6, 11 ].freeze
# the whitelisted DMI IDs. This is combination of the defaults + any additional
# IDs defined in the :additional_dmi_ids config
#
# @return [Array] the list of DMI IDs to capture
def whitelisted_ids
if Ohai.config[:additional_dmi_ids]
if [ Integer, Array ].include?(Ohai.config[:additional_dmi_ids].class)
return ID_TO_CAPTURE + Array(Ohai.config[:additional_dmi_ids])
else
Ohai::Log.warn("The DMI plugin additional_dmi_ids config must be an array of IDs!")
end
end
ID_TO_CAPTURE
end
# the human readable description from a DMI ID
#
# @param id [String, Integer] the ID to lookup
#
# @return [String]
def id_lookup(id)
id = id.to_i
if (id >= 128) && (id <= 255)
id = "oem_data_#{id}"
elsif DMI::ID_TO_DESCRIPTION.key?(id)
id = DMI::ID_TO_DESCRIPTION[id]
else
Ohai::Log.debug("unrecognized header id; falling back to 'unknown'")
id = "unknown_dmi_id_#{id}"
end
rescue
Ohai::Log.debug("failed to look up id #{id}, returning unchanged")
id
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.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.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, :whitelisted_ids
end
end
end
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