Module: Resolvers::Utils::Networking
- Defined in:
- lib/resolvers/utils/networking.rb
Class Method Summary collapse
-
.build_binding(addr, mask_length) ⇒ Hash
Creates a hash with IP, netmask and network.
- .expand_main_bindings(networking_facts) ⇒ Object
- .find_valid_binding(bindings) ⇒ Object
- .get_scope(ip) ⇒ Object
- .ignored_ip_address(addr) ⇒ Object
Class Method Details
.build_binding(addr, mask_length) ⇒ Hash
Creates a hash with IP, netmask and network. Works for IPV4 and IPV6
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# File 'lib/resolvers/utils/networking.rb', line 12 def build_binding(addr, mask_length) ip = IPAddr.new(addr) mask_helper = ip.ipv6? ? 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff' : '255.255.255.255' mask = IPAddr.new(mask_helper).mask(mask_length) { address: addr, netmask: mask.to_s, network: ip.mask(mask_length).to_s } end |
.expand_main_bindings(networking_facts) ⇒ Object
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# File 'lib/resolvers/utils/networking.rb', line 20 def (networking_facts) primary = networking_facts[:primary_interface] interfaces = networking_facts[:interfaces] (interfaces) unless interfaces.nil? (networking_facts, primary) unless primary.nil? || interfaces.nil? end |
.find_valid_binding(bindings) ⇒ Object
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# File 'lib/resolvers/utils/networking.rb', line 46 def find_valid_binding(bindings) bindings.each do |binding| return binding unless ignored_ip_address(binding[:address]) end bindings.empty? ? nil : bindings.first end |
.get_scope(ip) ⇒ Object
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# File 'lib/resolvers/utils/networking.rb', line 28 def get_scope(ip) require 'socket' scope6 = [] addrinfo = Addrinfo.new(['AF_INET6', 0, nil, ip], :INET6) scope6 << 'compat,' if IPAddr.new(ip).ipv4_compat? scope6 << if addrinfo.ipv6_linklocal? 'link' elsif addrinfo.ipv6_sitelocal? 'site' elsif addrinfo.ipv6_loopback? 'host' else 'global' end scope6.join end |
.ignored_ip_address(addr) ⇒ Object
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# File 'lib/resolvers/utils/networking.rb', line 53 def ignored_ip_address(addr) addr.empty? || addr.start_with?('127.', '169.254.') || addr.start_with?('fe80') || addr.eql?('::1') end |