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#
# Author:: James Gartrell (<jgartrel@gmail.com>)
# Copyright:: Copyright (c) 2008-2017, Chef Software Inc.
# 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.
#
Ohai.plugin(:Network) do
provides "network", "network/interfaces"
provides "counters/network", "counters/network/interfaces"
def windows_encaps_lookup(encap)
return "Ethernet" if encap.eql?("Ethernet 802.3")
encap
end
def mac_addresses(iface)
prop = iface[:configuration][:mac_address] || iface[:instance][:network_addresses]
[prop].flatten.map { |addr| addr.include?(":") ? addr : addr.scan(/.{1,2}/).join(":") }
end
def network_data
@network_data ||= begin
data = {}
wmi = WmiLite::Wmi.new
data[:addresses] = wmi.instances_of("Win32_NetworkAdapterConfiguration")
# If we are running on windows nano or another operating system from the future
# that does not populate the deprecated win32_* WMI classes, then we should
# grab data from the newer MSFT_* classes
return msft_adapter_data if data[:addresses].count == 0
data[:adapters] = wmi.instances_of("Win32_NetworkAdapter")
data
end
end
def msft_adapter_data
data = {}
wmi = WmiLite::Wmi.new("ROOT/StandardCimv2")
data[:addresses] = wmi.instances_of("MSFT_NetIPAddress")
data[:adapters] = wmi.instances_of("MSFT_NetAdapter")
data
end
# Returns interface code for an interface
#
# Interface Index (if present, Index otherwise) will be converted in hexadecimal format
#
# @param int_idx [String or nil] the interface index of interface
# @param idx [String] the index of interface
#
# @return [String]
#
# @example Interface Code when interface index is present
# plugin.interface_code("1", "1") #=> "ox1"
# @example Interface Code when interface index is not present
# plugin.interface_code(nil, "2") #=> "ox2"
#
def interface_code(int_idx, idx)
sprintf("0x%x", (int_idx || idx)).downcase
end
# Returns IPV4 address from list of addresses containing IPV4 and IPV6 formats
#
# @param addresses [Array<String>] List of addresses
#
# @return [String]
#
# @example When list contains both IPV4 and IPV6 formats
# plugin.prefer_ipv4([IPV4, IPV6]) #=> "IPV4"
# @example When list contains only IPV6 format
# plugin.prefer_ipv4([IPV6]) #=> "IPV6"
#
def prefer_ipv4(addresses)
return nil unless addresses.is_a?(Array)
addresses.find { |ip| IPAddress.valid_ipv4?(ip) } ||
addresses.find { |ip| IPAddress.valid_ipv6?(ip) }
end
# Selects default interface and returns its information
#
# @note Interface with least metric value should be prefered as default_route
#
# @param configuration [Mash] Configuration of interfaces as iface_config
# [<interface_index> => {<interface_configurations>}]
#
# @return [Hash<:index, :interface_index, :default_ip_gateway, :ip_connection_metric>]
#
def favored_default_route_windows(configuration)
return nil unless configuration.is_a?(Hash)
config = configuration.dup
config.inject([]) do |arr, (k, v)|
if v["default_ip_gateway"]
arr << { index: v["index"],
interface_index: v["interface_index"],
default_ip_gateway: prefer_ipv4(v["default_ip_gateway"]),
ip_connection_metric: v["ip_connection_metric"] }
end
arr
end.min_by { |r| r[:ip_connection_metric] }
end
collect_data(:windows) do
require "wmi-lite/wmi"
iface = Mash.new
iface_config = Mash.new
iface_instance = Mash.new
network Mash.new unless network
network[:interfaces] ||= Mash.new
counters Mash.new unless counters
counters[:network] ||= Mash.new
network_data[:addresses].each do |adapter|
i = adapter["index"] || adapter["InterfaceIndex"]
iface_config[i] ||= Mash.new
iface_config[i][:ip_address] ||= []
iface_config[i][:ip_address] << adapter["IPAddress"]
adapter.wmi_ole_object.properties_.each do |p|
if iface_config[i][p.name.wmi_underscore.to_sym].nil?
iface_config[i][p.name.wmi_underscore.to_sym] = adapter[p.name.downcase]
end
end
end
network_data[:adapters].each do |adapter|
i = adapter["index"] || adapter["InterfaceIndex"]
iface_instance[i] = Mash.new
adapter.wmi_ole_object.properties_.each do |p|
# skip wmi class name fields which make no sense in ohai
next if %w{creation_class_name system_creation_class_name}.include?(p.name.wmi_underscore)
iface_instance[i][p.name.wmi_underscore.to_sym] = adapter[p.name.downcase]
end
end
iface_instance.each_key do |i|
if iface_instance[i][:name] && iface_config[i] && iface_config[i][:ip_address][0]
cint = interface_code(iface_instance[i][:interface_index], iface_instance[i][:index])
iface[cint] = Mash.new
iface[cint][:configuration] = iface_config[i]
iface[cint][:instance] = iface_instance[i]
iface[cint][:counters] = Mash.new
iface[cint][:addresses] = Mash.new
iface[cint][:configuration][:ip_address] = iface[cint][:configuration][:ip_address].flatten
iface[cint][:configuration][:ip_address].each_index do |ip_index|
ip = iface[cint][:configuration][:ip_address][ip_index]
ip_and_subnet = ip.dup
ip_and_subnet << "/#{iface[cint][:configuration][:ip_subnet][ip_index]}" if iface[cint][:configuration][:ip_subnet]
ip2 = IPAddress(ip_and_subnet)
iface[cint][:addresses][ip] = Mash.new(prefixlen: ip2.prefix)
if ip2.ipv6?
iface[cint][:addresses][ip][:family] = "inet6"
iface[cint][:addresses][ip][:scope] = "Link" if ip =~ /^fe80/i
else
if iface[cint][:configuration][:ip_subnet]
iface[cint][:addresses][ip][:netmask] = ip2.netmask.to_s
if iface[cint][:configuration][:ip_use_zero_broadcast]
iface[cint][:addresses][ip][:broadcast] = ip2.network.to_s
else
iface[cint][:addresses][ip][:broadcast] = ip2.broadcast.to_s
end
end
iface[cint][:addresses][ip][:family] = "inet"
end
end
mac_addresses(iface[cint]).each do |mac_addr|
iface[cint][:addresses][mac_addr] = {
"family" => "lladdr",
}
end
iface[cint][:mtu] = iface[cint][:configuration][:mtu] if iface[cint][:configuration].key?(:mtu)
iface[cint][:type] = iface[cint][:instance][:adapter_type] if iface[cint][:instance][:adapter_type]
iface[cint][:arp] = {}
iface[cint][:encapsulation] = windows_encaps_lookup(iface[cint][:instance][:adapter_type]) if iface[cint][:instance][:adapter_type]
end
end
if (route = favored_default_route_windows(iface_config))
network[:default_gateway] = route[:default_ip_gateway]
network[:default_interface] = interface_code(route[:interface_index], route[:index])
end
cint = nil
so = shell_out("arp -a")
if so.exitstatus == 0
so.stdout.lines do |line|
if line =~ /^Interface:\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\s+[-]+\s+(0x\S+)/
cint = $2.downcase
end
next unless iface[cint]
if line =~ /^\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\s+([a-fA-F0-9\:-]+)/
iface[cint][:arp][$1] = $2.tr("-", ":").downcase
end
end
end
network["interfaces"] = iface
end
end
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