network.rb in ohai-18.0.26

- old
+ new
@@ -1,186 +1,186 @@
-# frozen_string_literal: true
-#
-# Author:: Adam Jacob (<adam@chef.io>)
-# Copyright:: Copyright (c) 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(:NetworkAddresses) do
-  require_relative "../mixin/network_helper"
-  include Ohai::Mixin::NetworkHelper
-
-  provides "ipaddress", "ip6address", "macaddress"
-
-  depends "network/interfaces"
-
-  # from interface data create array of hashes with ipaddress, scope, and iface
-  # sorted by scope, prefixlen and then ipaddress where longest prefixes first
-  def sorted_ips(family = "inet")
-    raise "bad family #{family}" unless %w{inet inet6}.include? family
-
-    # priority of ipv6 link scopes to sort by later
-    scope_prio = [ "global", "site", "link", "host", "node", nil ]
-
-    # grab ipaddress, scope, and iface for sorting later
-    ipaddresses = []
-    Mash[network["interfaces"]].each do |iface, iface_v|
-      next if iface_v.nil? || !iface_v.key?("addresses")
-
-      iface_v["addresses"].each do |addr, addr_v|
-        next if addr_v.nil? || (!addr_v.key? "family") || addr_v["family"] != family
-
-        ipaddresses << {
-          ipaddress: addr_v["prefixlen"] ? IPAddress("#{addr}/#{addr_v["prefixlen"]}") : IPAddress("#{addr}/#{addr_v["netmask"]}"),
-          scope: addr_v["scope"].nil? ? nil : addr_v["scope"].downcase,
-          iface: iface,
-        }
-      end
-    end
-
-    # sort ip addresses by scope, by prefixlen and then by ip address
-    # 128 - prefixlen: longest prefixes first
-    ipaddresses.sort_by do |v|
-      [ ( scope_prio.index(v[:scope]) || 999999 ),
-        128 - v[:ipaddress].prefix.to_i,
-        v[:ipaddress].to_i,
-      ]
-    end
-  end
-
-  # finds ip address / interface for interface with default route based on
-  # passed in family.  returns [ipaddress, interface] uses 1st ip if no default
-  # route is found
-  def find_ip(family = "inet")
-    ips = sorted_ips(family)
-
-    # return if there aren't any #{family} addresses!
-    return [ nil, nil ] if ips.empty?
-
-    # shortcuts to access default #{family} interface and gateway
-    int_attr = Ohai::Mixin::NetworkHelper::FAMILIES[family] + "_interface"
-    gw_attr = Ohai::Mixin::NetworkHelper::FAMILIES[family] + "_gateway"
-
-    if network[int_attr]
-      # working with the address(es) of the default network interface
-      gw_if_ips = ips.select do |v|
-        v[:iface] == network[int_attr]
-      end
-      if gw_if_ips.empty?
-        logger.warn("Plugin Network: [#{family}] no ip address on #{network[int_attr]}")
-      elsif network[gw_attr] &&
-          network["interfaces"][network[int_attr]] &&
-          network["interfaces"][network[int_attr]]["addresses"]
-        if [ "0.0.0.0", "::", /^fe80:/ ].any? { |pat| pat === network[gw_attr] } # rubocop: disable Performance/RedundantEqualityComparisonBlock
-          # link level default route
-          logger.trace("Plugin Network: link level default #{family} route, picking ip from #{network[gw_attr]}")
-          r = gw_if_ips.first
-        else
-          # checking network masks
-          r = gw_if_ips.find do |v|
-            network_contains_address(network[gw_attr], v[:ipaddress], v[:iface])
-          end
-          if r.nil?
-            r = gw_if_ips.first
-            logger.trace("Plugin Network: [#{family}] no ipaddress/mask on #{network[int_attr]} matching the gateway #{network[gw_attr]}, picking #{r[:ipaddress]}")
-          else
-            logger.trace("Plugin Network: [#{family}] Using default interface #{network[int_attr]} and default gateway #{network[gw_attr]} to set the default ip to #{r[:ipaddress]}")
-          end
-        end
-      else
-        # return the first ip address on network[int_attr]
-        r = gw_if_ips.first
-      end
-    else
-      r = ips.first
-      logger.trace("Plugin Network: [#{family}] no default interface, picking the first ipaddress")
-    end
-
-    return [ nil, nil ] if r.nil? || r.empty?
-
-    [ r[:ipaddress].to_s, r[:iface] ]
-  end
-
-  # select mac address of first interface with family of lladdr
-  def find_mac_from_iface(iface)
-    r = network["interfaces"][iface]["addresses"].select { |k, v| v["family"] == "lladdr" }
-    r.nil? || r.first.nil? ? nil : r.first.first
-  end
-
-  # address_to_match: String
-  # ipaddress: IPAddress
-  # iface: String
-  def network_contains_address(address_to_match, ipaddress, iface)
-    if ( peer = network["interfaces"][iface]["addresses"][ipaddress.to_s][:peer] )
-      IPAddress(peer) == IPAddress(address_to_match)
-    else
-      ipaddress.include? IPAddress(address_to_match)
-    end
-  end
-
-  # ipaddress, ip6address and macaddress are set for each interface by the
-  # #{os}::network plugin. atm it is expected macaddress is set at the same
-  # time as ipaddress. if ipaddress is set and macaddress is nil, that means
-  # the interface ipaddress is bound to has the NOARP flag
-  collect_data do
-    require "ipaddress" unless defined?(IPAddress)
-
-    results = {}
-
-    network Mash.new unless network
-    network[:interfaces] ||= Mash.new
-    counters Mash.new unless counters
-    counters[:network] ||= Mash.new
-
-    # inet family is processed before inet6 to give ipv4 precedence
-    Ohai::Mixin::NetworkHelper::FAMILIES.keys.sort.each do |family|
-      r = {}
-      # find the ip/interface with the default route for this family
-      (r["ip"], r["iface"]) = find_ip(family)
-      r["mac"] = find_mac_from_iface(r["iface"]) unless r["iface"].nil?
-      # don't overwrite attributes if they've already been set by the "#{os}::network" plugin
-      if (family == "inet") && ipaddress.nil?
-        if r["ip"].nil?
-          logger.warn("Plugin Network: unable to detect ipaddress")
-        else
-          ipaddress r["ip"]
-        end
-      elsif (family == "inet6") && ip6address.nil?
-        if r["ip"].nil?
-          logger.trace("Plugin Network: unable to detect ip6address")
-        else
-          ip6address r["ip"]
-        end
-      end
-
-      # set the macaddress [only if we haven't already]. this allows the #{os}::network plugin to set macaddress
-      # otherwise we set macaddress on a first-found basis (and we started with ipv4)
-      if macaddress.nil?
-        if r["mac"]
-          logger.trace("Plugin Network: setting macaddress to '#{r["mac"]}' from interface '#{r["iface"]}' for family '#{family}'")
-          macaddress r["mac"]
-        else
-          logger.trace("Plugin Network: unable to detect macaddress for family '#{family}'")
-        end
-      end
-
-      results[family] = r
-    end
-
-    if results["inet"]["iface"] && results["inet6"]["iface"] &&
-        (results["inet"]["iface"] != results["inet6"]["iface"])
-      logger.trace("Plugin Network: ipaddress and ip6address are set from different interfaces (#{results["inet"]["iface"]} & #{results["inet6"]["iface"]})")
-    end
-  end
-end
+# frozen_string_literal: true
+#
+# Author:: Adam Jacob (<adam@chef.io>)
+# Copyright:: Copyright (c) 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(:NetworkAddresses) do
+  require_relative "../mixin/network_helper"
+  include Ohai::Mixin::NetworkHelper
+
+  provides "ipaddress", "ip6address", "macaddress"
+
+  depends "network/interfaces"
+
+  # from interface data create array of hashes with ipaddress, scope, and iface
+  # sorted by scope, prefixlen and then ipaddress where longest prefixes first
+  def sorted_ips(family = "inet")
+    raise "bad family #{family}" unless %w{inet inet6}.include? family
+
+    # priority of ipv6 link scopes to sort by later
+    scope_prio = [ "global", "site", "link", "host", "node", nil ]
+
+    # grab ipaddress, scope, and iface for sorting later
+    ipaddresses = []
+    Mash[network["interfaces"]].each do |iface, iface_v|
+      next if iface_v.nil? || !iface_v.key?("addresses")
+
+      iface_v["addresses"].each do |addr, addr_v|
+        next if addr_v.nil? || (!addr_v.key? "family") || addr_v["family"] != family
+
+        ipaddresses << {
+          ipaddress: addr_v["prefixlen"] ? IPAddress("#{addr}/#{addr_v["prefixlen"]}") : IPAddress("#{addr}/#{addr_v["netmask"]}"),
+          scope: addr_v["scope"].nil? ? nil : addr_v["scope"].downcase,
+          iface: iface,
+        }
+      end
+    end
+
+    # sort ip addresses by scope, by prefixlen and then by ip address
+    # 128 - prefixlen: longest prefixes first
+    ipaddresses.sort_by do |v|
+      [ ( scope_prio.index(v[:scope]) || 999999 ),
+        128 - v[:ipaddress].prefix.to_i,
+        v[:ipaddress].to_i,
+      ]
+    end
+  end
+
+  # finds ip address / interface for interface with default route based on
+  # passed in family.  returns [ipaddress, interface] uses 1st ip if no default
+  # route is found
+  def find_ip(family = "inet")
+    ips = sorted_ips(family)
+
+    # return if there aren't any #{family} addresses!
+    return [ nil, nil ] if ips.empty?
+
+    # shortcuts to access default #{family} interface and gateway
+    int_attr = Ohai::Mixin::NetworkHelper::FAMILIES[family] + "_interface"
+    gw_attr = Ohai::Mixin::NetworkHelper::FAMILIES[family] + "_gateway"
+
+    if network[int_attr]
+      # working with the address(es) of the default network interface
+      gw_if_ips = ips.select do |v|
+        v[:iface] == network[int_attr]
+      end
+      if gw_if_ips.empty?
+        logger.warn("Plugin Network: [#{family}] no ip address on #{network[int_attr]}")
+      elsif network[gw_attr] &&
+          network["interfaces"][network[int_attr]] &&
+          network["interfaces"][network[int_attr]]["addresses"]
+        if [ "0.0.0.0", "::", /^fe80:/ ].any? { |pat| pat === network[gw_attr] } # rubocop: disable Performance/RedundantEqualityComparisonBlock
+          # link level default route
+          logger.trace("Plugin Network: link level default #{family} route, picking ip from #{network[gw_attr]}")
+          r = gw_if_ips.first
+        else
+          # checking network masks
+          r = gw_if_ips.find do |v|
+            network_contains_address(network[gw_attr], v[:ipaddress], v[:iface])
+          end
+          if r.nil?
+            r = gw_if_ips.first
+            logger.trace("Plugin Network: [#{family}] no ipaddress/mask on #{network[int_attr]} matching the gateway #{network[gw_attr]}, picking #{r[:ipaddress]}")
+          else
+            logger.trace("Plugin Network: [#{family}] Using default interface #{network[int_attr]} and default gateway #{network[gw_attr]} to set the default ip to #{r[:ipaddress]}")
+          end
+        end
+      else
+        # return the first ip address on network[int_attr]
+        r = gw_if_ips.first
+      end
+    else
+      r = ips.first
+      logger.trace("Plugin Network: [#{family}] no default interface, picking the first ipaddress")
+    end
+
+    return [ nil, nil ] if r.nil? || r.empty?
+
+    [ r[:ipaddress].to_s, r[:iface] ]
+  end
+
+  # select mac address of first interface with family of lladdr
+  def find_mac_from_iface(iface)
+    r = network["interfaces"][iface]["addresses"].select { |k, v| v["family"] == "lladdr" }
+    r.nil? || r.first.nil? ? nil : r.first.first
+  end
+
+  # address_to_match: String
+  # ipaddress: IPAddress
+  # iface: String
+  def network_contains_address(address_to_match, ipaddress, iface)
+    if ( peer = network["interfaces"][iface]["addresses"][ipaddress.to_s][:peer] )
+      IPAddress(peer) == IPAddress(address_to_match)
+    else
+      ipaddress.include? IPAddress(address_to_match)
+    end
+  end
+
+  # ipaddress, ip6address and macaddress are set for each interface by the
+  # #{os}::network plugin. atm it is expected macaddress is set at the same
+  # time as ipaddress. if ipaddress is set and macaddress is nil, that means
+  # the interface ipaddress is bound to has the NOARP flag
+  collect_data do
+    require "ipaddress" unless defined?(IPAddress)
+
+    results = {}
+
+    network Mash.new unless network
+    network[:interfaces] ||= Mash.new
+    counters Mash.new unless counters
+    counters[:network] ||= Mash.new
+
+    # inet family is processed before inet6 to give ipv4 precedence
+    Ohai::Mixin::NetworkHelper::FAMILIES.keys.sort.each do |family|
+      r = {}
+      # find the ip/interface with the default route for this family
+      (r["ip"], r["iface"]) = find_ip(family)
+      r["mac"] = find_mac_from_iface(r["iface"]) unless r["iface"].nil?
+      # don't overwrite attributes if they've already been set by the "#{os}::network" plugin
+      if (family == "inet") && ipaddress.nil?
+        if r["ip"].nil?
+          logger.warn("Plugin Network: unable to detect ipaddress")
+        else
+          ipaddress r["ip"]
+        end
+      elsif (family == "inet6") && ip6address.nil?
+        if r["ip"].nil?
+          logger.trace("Plugin Network: unable to detect ip6address")
+        else
+          ip6address r["ip"]
+        end
+      end
+
+      # set the macaddress [only if we haven't already]. this allows the #{os}::network plugin to set macaddress
+      # otherwise we set macaddress on a first-found basis (and we started with ipv4)
+      if macaddress.nil?
+        if r["mac"]
+          logger.trace("Plugin Network: setting macaddress to '#{r["mac"]}' from interface '#{r["iface"]}' for family '#{family}'")
+          macaddress r["mac"]
+        else
+          logger.trace("Plugin Network: unable to detect macaddress for family '#{family}'")
+        end
+      end
+
+      results[family] = r
+    end
+
+    if results["inet"]["iface"] && results["inet6"]["iface"] &&
+        (results["inet"]["iface"] != results["inet6"]["iface"])
+      logger.trace("Plugin Network: ipaddress and ip6address are set from different interfaces (#{results["inet"]["iface"]} & #{results["inet6"]["iface"]})")
+    end
+  end
+end