Folded in ruby-netlink libraries from https://github.com/BytemarkHosting/netlinkrb

common/debian/control

@@ -10,7 +10,7 @@ XS-Ruby-Versions: all
 Package: symbiosis-common
 Architecture: all
 XB-Ruby-Versions: ${ruby:Versions}
-Depends: ruby | ruby-interpreter, ruby-acme-client (>= 0.3.5), ruby-linux-netlink, ruby-password, ruby-diffy, ruby-erubis, ruby-mocha, ruby-webmock, ruby-test-unit, gnutls-bin, openssl, sudo, adduser, ssl-cert, ${misc:Depends}
+Depends: ruby | ruby-interpreter, ruby-acme-client (>= 0.3.5), ruby-password, ruby-diffy, ruby-erubis, ruby-mocha, ruby-webmock, ruby-test-unit, gnutls-bin, openssl, sudo, adduser, ssl-cert, ${misc:Depends}
 Replaces: symbiosis-firewall (<< 2011:1214), symbiosis-range, symbiosis-test, bytemark-vhost-range, bytemark-vhost-test, symbiosis-crack
 Breaks: symbiosis-firewall (<< 2011:1214), symbiosis-email (<< 2012:0215)
 Conflicts: symbiosis-range, symbiosis-test, symbiosis-crack, bytemark-vhost-range, bytemark-vhost-test, symbiosis-email (<< 2012:0215)

common/lib/linux/c_struct.rb

+module Linux
+
+# This class allows defining of C-style structures, and converting
+# object instances to and from a packed binary representation.
+#
+# A new structure is created by subclassing CStruct, and then using the
+# 'field' metaprogramming macro to define each field:
+#
+#   class Foo < Linux::CStruct
+#     field :bar, :char
+#     field :baz, :long
+#
+#     # custom packing
+#     field :qux, :pattern => "Z16", :default => EMPTY_STRING
+#
+#     # user-defined types
+#     define_type :str16, :pattern => "Z16", :default => EMPTY_STRING
+#     field :qux2, :str16
+#     field :qux3, :str16
+#   end
+#
+# You can then instantiate the structure by calling 'new'. You may pass in
+# a hash of values to initialize the structure.
+#
+#   msg = Foo.new(:bar => 123)
+#   msg.bar = 456               # accessor methods
+#   str = msg.to_str            # convert to binary
+#   msg2 = Foo.parse(str)       # convert from binary
+#   msg2 = Foo.new(msg)         # copy an existing object
+class CStruct
+  EMPTY_STRING = "".freeze #:nodoc:
+  EMPTY_ARRAY  = [].freeze #:nodoc:
+
+  TYPE_INFO = {} #:nodoc
+  
+  # The size of the structure (in bytes)
+  def self.bytesize
+    @bytesize
+  end
+  
+  # Define a new type for use with 'field'. You supply the
+  # symbolic name for the type, and a set of options.
+  #    :pattern => "str"    # format string for Array#pack / String#unpack
+  #    :default => val      # default (if not 0)
+  #    :size => 16          # size of this entry
+  #    :align => 4          # align to 4-byte boundary (must be power-of-two)
+  #    :align => true       # align to [size]-byte boundary
+  #
+  # If you do not specify :size then it is calculated by packing an
+  # instance of the default value.
+  def self.define_type(name, opt)
+    TYPE_INFO[name] = opt
+  end
+  
+  # Return a type info hash given a type id. Raises IndexError if not found.
+  def self.find_type(type)
+    case type
+    when nil, Hash
+      type
+    else
+      TYPE_INFO.fetch(type)
+    end
+  end
+      
+  define_type :uchar,   :pattern => "C"
+  define_type :uint16,  :pattern => "S",  :align => true
+  define_type :uint32,  :pattern => "L",  :align => true
+  define_type :uint64,  :pattern => "Q",  :align => true
+  define_type :char,    :pattern => "c"
+  define_type :int16,   :pattern => "s",  :align => true
+  define_type :int32,   :pattern => "l",  :align => true
+  define_type :int64,   :pattern => "q",  :align => true
+  define_type :ushort,  :pattern => "S_", :align => true
+  define_type :uint,    :pattern => "I",  :align => true
+  define_type :ulong,   :pattern => "L_", :align => true
+  define_type :short,   :pattern => "s_", :align => true
+  define_type :int,     :pattern => "i",  :align => true
+  define_type :long,    :pattern => "l_", :align => true
+  define_type :ns,      :pattern => "n",  :align => true
+  define_type :nl,      :pattern => "N",  :align => true
+  
+  begin
+    require 'linux/c_struct_sizeof_size_t.rb'
+  rescue LoadError
+    warn "Falling back to gcc to determine sizeof size_t." if $VERBOSE
+    SIZEOF_SIZE_T = Integer(`echo __SIZEOF_SIZE_T__ | gcc -E -P -`) rescue 1.size
+  end
+
+  define_type :size_t,
+    case SIZEOF_SIZE_T
+    when 8
+      {:pattern => "Q", :align => true}
+    when 4
+      {:pattern => "L", :align => true}
+    else
+      raise "Bad size_t (#{SIZEOF_SIZE_T.inspect})"
+    end
+  # these can be used at end of structure only
+  define_type :binary,  :pattern => "a*", :default => EMPTY_STRING
+  # cstring has \x00 terminator when sent over wire
+  define_type :cstring, :pattern => "Z*", :default => EMPTY_STRING
+
+  def initialize(h=nil)
+    if h.instance_of?(self.class)
+      @attrs = h.to_hash.dup
+    else
+      @attrs = {}
+      h.each { |k,v| self[k] = v } if h
+    end
+  end
+  
+  # This hook is called after unpacking from binary, and can be used
+  # for fixing up the data
+  def after_parse
+  end
+  
+  def to_hash
+    @attrs
+  end
+  
+  def each(&blk)
+    @attrs.each(&blk)
+  end
+  
+  # Set a field by name. Currently can use either symbol or string as key.
+  def []=(k,v)
+    send "#{k}=", v
+  end
+
+  # Retrieve a field by name. Must use symbol as key.
+  def [](k)
+    @attrs[k]
+  end
+  
+  def self.inherited(subclass) #:nodoc:
+    subclass.const_set(:FIELDS, [])
+    subclass.const_set(:FORMAT, "")
+    subclass.const_set(:DEFAULTS, {})
+    subclass.instance_variable_set(:@bytesize, 0)
+  end
+
+  # Define a field for this message, which creates accessor methods and
+  # sets up data required to pack and unpack the structure.
+  #    field :foo, :uchar
+  #    field :foo, :uchar, :default=>0xff    # use this default value
+  def self.field(name, type, opt={})
+    info = find_type(type)
+    pattern = info[:pattern]
+    default = opt.fetch(:default) { info.fetch(:default, 0) }
+
+    # Apply padding for structure alignment if necessary
+    size = info[:size] || [default].pack(pattern).bytesize
+    if align = (opt[:align] || info[:align])
+      align = size if align == true
+      field_pad alignto(@bytesize, align) - @bytesize
+    end
+    @bytesize += size
+
+    self::FIELDS << name
+    self::FORMAT << pattern
+    self::DEFAULTS[name] = default
+
+    define_method name do
+      @attrs[name]
+    end
+    define_method "#{name}=" do |val|
+      @attrs.store name, val
+    end
+  end
+
+  # Skip pad byte(s) - default 1
+  def self.field_pad(count=1)
+    if count > 0
+      self::FORMAT << "x#{count}"
+      @bytesize += count
+    end
+  end
+  
+  # Returns the packed binary representation of this structure
+  def to_str
+    self.class::FIELDS.map { |key| self[key] || self.class::DEFAULTS[key] }.pack(self.class::FORMAT)
+  end
+
+  def inspect
+    "#<#{self.class} #{@attrs.inspect}>"
+  end
+  
+  # Convert a binary representation of this structure into an object instance.
+  # If a block is given, the object is yielded to that block. Finally the
+  # after_parse hook is called.
+  def self.parse(data, obj=new)
+    data.unpack(self::FORMAT).zip(self::FIELDS).each do |val, key|
+      obj[key] = val
+    end
+    yield obj if block_given?
+    obj.after_parse
+    obj
+  end
+
+  # Round up a number to multiple of m, where m is a power of two
+  def self.alignto(val, m)
+    (val + (m-1)) & ~(m-1)
+  end
+end
+end # module Linux

common/lib/linux/constants.rb

+require 'socket'
+class Socket
+  # From bits/socket.h
+  PF_NETLINK    = 16    unless defined? Socket::PF_NETLINK
+  AF_NETLINK    = PF_NETLINK  unless defined? Socket::AF_NETLINK
+  # From in.h
+  IPPROTO_IPV6    = 41    unless defined? Socket::IPPROTO_IPV6
+end
+
+module Linux
+  # From linux/netlink.h
+  NETLINK_ROUTE    = 0
+  NETLINK_UNUSED  = 1
+  NETLINK_USERSOCK  = 2
+  NETLINK_FIREWALL  = 3
+  NETLINK_INET_DIAG  = 4
+  NETLINK_NFLOG    = 5
+  NETLINK_XFRM    = 6
+  NETLINK_SELINUX  = 7
+  NETLINK_ISCSI    = 8
+  NETLINK_AUDIT    = 9
+  NETLINK_FIB_LOOKUP  = 10
+  NETLINK_CONNECTOR  = 11
+  NETLINK_NETFILTER  = 12
+  NETLINK_IP6_FW  = 13
+  NETLINK_DNRTMSG  = 14
+  NETLINK_KOBJECT_UEVENT = 15
+  NETLINK_GENERIC  = 16
+  NETLINK_SCSITRANSPORT  = 18
+  NETLINK_ECRYPTFS  = 19
+  NETLINK_RDMA      = 20
+  NETLINK_CRYPTO    = 21
+
+  NLM_F_REQUEST    = 1
+  NLM_F_MULTI    = 2
+  NLM_F_ACK    = 4
+  NLM_F_ECHO    = 8
+  NLM_F_DUMP_INTR = 16
+  NLM_F_DUMP_FILTERED = 32
+  NLM_F_ROOT    = 0x100
+  NLM_F_MATCH    = 0x200
+  NLM_F_ATOMIC    = 0x400
+  NLM_F_DUMP    = (NLM_F_ROOT|NLM_F_MATCH)
+
+  NLM_F_REPLACE    = 0x100
+  NLM_F_EXCL    = 0x200
+  NLM_F_CREATE    = 0x400
+  NLM_F_APPEND    = 0x800
+
+  NLMSG_ALIGNTO    = 4  # same on i686 and x86_64
+
+  NLMSG_NOOP    = 0x1
+  NLMSG_ERROR    = 0x2
+  NLMSG_DONE    = 0x3
+  NLMSG_OVERRUN    = 0x4
+
+  NLMSG_MIN_TYPE = 0x10
+
+  NETLINK_ADD_MEMBERSHIP  = 1
+  NETLINK_DROP_MEMBERSHIP  = 2
+  NETLINK_PKTINFO    = 3
+  NETLINK_BROADCAST_ERROR  = 4
+  NETLINK_NO_ENOBUFS    = 5
+  NETLINK_RX_RING  = 6
+  NETLINK_TX_RING = 7
+  NETLINK_LISTEN_ALL_NSID = 8
+  NETLINK_LIST_MEMBERSHIPS = 9
+  NETLINK_CAP_ACK = 10
+
+  NETLINK_UNCONNECTED    = 0
+  NETLINK_CONNECTED    = 1
+
+  NLA_F_NESTED      = (1 << 15)
+  NLA_F_NET_BYTEORDER    = (1 << 14)
+  NLA_TYPE_MASK      = ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
+
+  NLA_ALIGNTO      = 4  # same on i686 and x86_64
+
+  # from linux/rtnetlink.h.
+  RTM_BASE      = 16
+  RTM_NEWLINK    = 16
+  RTM_DELLINK    = 17
+  RTM_GETLINK    = 18
+  RTM_SETLINK    = 19
+
+  RTM_NEWADDR    = 20
+  RTM_DELADDR    = 21
+  RTM_GETADDR    = 22
+
+  RTM_NEWROUTE    = 24
+  RTM_DELROUTE    = 25
+  RTM_GETROUTE    = 26
+
+  RTM_NEWNEIGH    = 28
+  RTM_DELNEIGH    = 29
+  RTM_GETNEIGH    = 30
+
+  RTM_NEWRULE    = 32
+  RTM_DELRULE    = 33
+  RTM_GETRULE    = 34
+
+  RTM_NEWQDISC    = 36
+  RTM_DELQDISC    = 37
+  RTM_GETQDISC    = 38
+
+  RTM_NEWTCLASS    = 40
+  RTM_DELTCLASS    = 41
+  RTM_GETTCLASS    = 42
+
+  RTM_NEWTFILTER  = 44
+  RTM_DELTFILTER  = 45
+  RTM_GETTFILTER  = 46
+
+  RTM_NEWACTION    = 48
+  RTM_DELACTION    = 49
+  RTM_GETACTION    = 50
+
+  RTM_NEWPREFIX    = 52
+  RTM_GETMULTICAST  = 58
+  RTM_GETANYCAST  = 62
+
+  RTM_NEWNEIGHTBL  = 64
+  RTM_GETNEIGHTBL  = 66
+  RTM_SETNEIGHTBL  = 67
+
+  RTM_NEWNDUSEROPT  = 68
+
+  RTM_NEWADDRLABEL  = 72
+  RTM_DELADDRLABEL  = 73
+  RTM_GETADDRLABEL  = 74
+
+  RTM_GETDCB    = 78
+  RTM_SETDCB    = 79
+
+
+  RTM_NEWNETCONF = 80
+  RTM_GETNETCONF = 82
+
+  RTM_NEWMDB = 84
+  RTM_DELMDB = 85
+  RTM_GETMDB = 86
+
+  RTM_NEWNSID = 88
+  RTM_DELNSID = 89
+  RTM_GETNSID = 90
+
+  RTM_NEWSTATS = 92
+  RTM_GETSTATS = 94
+
+  # RT#type
+  RTN_UNSPEC    = 0
+  RTN_UNICAST    = 1
+  RTN_LOCAL    = 2
+  RTN_BROADCAST    = 3
+  RTN_ANYCAST    = 4
+  RTN_MULTICAST    = 5
+  RTN_BLACKHOLE    = 6
+  RTN_UNREACHABLE  = 7
+  RTN_PROHIBIT    = 8
+  RTN_THROW    = 9
+  RTN_NAT    = 10
+  RTN_XRESOLVE    = 11
+
+  # RT#protocol
+  RTPROT_UNSPEC    = 0
+  RTPROT_REDIRECT  = 1
+  RTPROT_KERNEL    = 2
+  RTPROT_BOOT    = 3
+  RTPROT_STATIC    = 4
+  RTPROT_GATED    = 8
+  RTPROT_RA    = 9
+  RTPROT_MRT    = 10
+  RTPROT_ZEBRA    = 11
+  RTPROT_BIRD    = 12
+  RTPROT_DNROUTED  = 13
+  RTPROT_XORP    = 14
+  RTPROT_NTK    = 15
+  RTPROT_DHCP    = 16
+  RTPROT_MROUTED = 17
+  RTPROT_BABEL = 42
+
+  # RT#scope, IFAddr#scope
+  RT_SCOPE_UNIVERSE  = 0
+  RT_SCOPE_SITE    = 200
+  RT_SCOPE_LINK    = 253
+  RT_SCOPE_HOST    = 254
+  RT_SCOPE_NOWHERE  = 255
+
+  # RT#flags
+  RTM_F_NOTIFY    = 0x100
+  RTM_F_CLONED    = 0x200
+  RTM_F_EQUALIZE  = 0x400
+  RTM_F_PREFIX    = 0x800
+  RTM_F_LOOKUP_TABLE = 0x1000
+
+  # RT#table (reserved values)
+  RT_TABLE_UNSPEC  = 0
+  RT_TABLE_COMPAT  = 252
+  RT_TABLE_DEFAULT  = 253
+  RT_TABLE_MAIN    = 254
+  RT_TABLE_LOCAL  = 255
+
+  # routing message attributes
+  RTA_UNSPEC    = 0
+  RTA_DST    = 1
+  RTA_SRC    = 2
+  RTA_IIF    = 3
+  RTA_OIF    = 4
+  RTA_GATEWAY    = 5
+  RTA_PRIORITY    = 6
+  RTA_PREFSRC    = 7
+  RTA_METRICS    = 8
+  RTA_MULTIPATH    = 9
+  RTA_FLOW    = 11
+  RTA_CACHEINFO    = 12
+  RTA_TABLE    = 15
+  RTA_MARK    = 16
+  RTA_MFC_STATS = 17
+  RTA_VIA = 18
+  RTA_NEWDST = 19
+  RTA_PREF = 20
+  RTA_ENCAP_TYPE = 21
+  RTA_ENCAP = 22
+  RTA_EXPIRES = 23
+  RTA_PAD = 24
+
+  # Keys for RT#nh_flags
+  RTNH_F_DEAD      = 1    # Nexthop is dead (used by multipath)
+  RTNH_F_PERVASIVE  = 2  # Do recursive gateway lookup
+  RTNH_F_ONLINK    = 4   # Gateway is forced on link
+  RTNH_F_OFFLOAD   = 8   # offloaded route
+  RTNH_F_LINKDOWN  = 16  # carrier-down on nexthop
+
+
+  # Keys for RT#metrics
+  RTAX_UNSPEC    = 0
+  RTAX_LOCK    = 1
+  RTAX_MTU    = 2
+  RTAX_WINDOW    = 3
+  RTAX_RTT    = 4
+  RTAX_RTTVAR    = 5
+  RTAX_SSTHRESH    = 6
+  RTAX_CWND    = 7
+  RTAX_ADVMSS    = 8
+  RTAX_REORDERING  = 9
+  RTAX_HOPLIMIT    = 10
+  RTAX_INITCWND    = 11
+  RTAX_FEATURES    = 12
+  RTAX_RTO_MIN    = 13
+  RTAX_INITRWND    = 14
+  RTAX_QUICKACK   = 15
+  RTAX_CC_ALGO    = 16
+
+  # from linux/if_link.h
+  IFLA_UNSPEC    = 0
+  IFLA_ADDRESS    = 1
+  IFLA_BROADCAST  = 2
+  IFLA_IFNAME    = 3
+  IFLA_MTU    = 4
+  IFLA_LINK    = 5
+  IFLA_QDISC    = 6
+  IFLA_STATS    = 7
+  IFLA_COST    = 8
+  IFLA_PRIORITY    = 9
+  IFLA_MASTER    = 10
+  IFLA_WIRELESS    = 11
+  IFLA_PROTINFO    = 12
+  IFLA_TXQLEN    = 13
+  IFLA_MAP    = 14
+  IFLA_WEIGHT    = 15
+  IFLA_OPERSTATE  = 16
+  IFLA_LINKMODE    = 17
+  IFLA_LINKINFO    = 18  # Nested IFLA_INFO_*
+  IFLA_NET_NS_PID  = 19
+  IFLA_IFALIAS    = 20
+  IFLA_NUM_VF    = 21
+  IFLA_VFINFO_LIST  = 22
+  IFLA_STATS64    = 23
+  IFLA_VF_PORTS    = 24
+  IFLA_PORT_SELF  = 25
+  IFLA_AF_SPEC          = 26
+  IFLA_GROUP            = 27
+  IFLA_NET_NS_FD        = 28
+  IFLA_EXT_MASK   = 29
+  IFLA_PROMISCUITY      = 30
+  IFLA_NUM_TX_QUEUES    = 31
+  IFLA_NUM_RX_QUEUES    = 32
+  IFLA_CARRIER          = 33
+  IFLA_PHYS_PORT_ID  = 34
+  IFLA_CARRIER_CHANGES = 35
+  IFLA_PHYS_SWITCH_ID = 36
+  IFLA_LINK_NETNSID = 37
+  IFLA_PHYS_PORT_NAME = 38
+  IFLA_PROTO_DOWN = 39
+  IFLA_GSO_MAX_SEGS = 40
+  IFLA_GSO_MAX_SIZE = 41
+  IFLA_PAD = 42
+
+  BRIDGE_MODE_UNSPEC = 0
+  BRIDGE_MODE_HAIRPIN = 1
+
+  IFLA_BRPORT_UNSPEC        = 0
+  IFLA_BRPORT_STATE         = 1 # Spanning tree state
+  IFLA_BRPORT_PRIORITY      = 2 # "             priority
+  IFLA_BRPORT_COST          = 3 # "             cost
+  IFLA_BRPORT_MODE          = 4 # mode (hairpin)
+  IFLA_BRPORT_GUARD         = 5 # bpdu guard
+  IFLA_BRPORT_PROTECT       = 6 # root port protection
+  IFLA_BRPORT_FAST_LEAVE    = 7 # multicast fast leave
+  IFLA_BRPORT_LEARNING      = 8 # mac learning
+  IFLA_BRPORT_UNICAST_FLOOD = 9 # flood unicast traffic
+  IFLA_BRPORT_PROXYARP      = 10 # proxy ARP
+  IFLA_BRPORT_LEARNING_SYNC = 11 # mac learning sync from device
+  IFLA_BRPORT_PROXYARP_WIFI = 12 # proxy ARP for Wi-Fi
+  IFLA_BRPORT_ROOT_ID       = 13 # designated root
+  IFLA_BRPORT_BRIDGE_ID     = 14 # designated bridge
+  IFLA_BRPORT_DESIGNATED_PORT = 15
+  IFLA_BRPORT_DESIGNATED_COST = 16
+  IFLA_BRPORT_ID = 17
+  IFLA_BRPORT_NO = 18
+  IFLA_BRPORT_TOPOLOGY_CHANGE_ACK = 19
+  IFLA_BRPORT_CONFIG_PENDING = 20
+  IFLA_BRPORT_MESSAGE_AGE_TIMER = 21
+  IFLA_BRPORT_FORWARD_DELAY_TIMER = 22
+  IFLA_BRPORT_HOLD_TIMER = 23
+  IFLA_BRPORT_FLUSH = 24
+  IFLA_BRPORT_MULTICAST_ROUTER = 25
+  IFLA_BRPORT_PAD = 26
+
+  IFLA_INFO_UNSPEC  = 0
+  IFLA_INFO_KIND  = 1  # "vlan", "gre" etc
+  IFLA_INFO_DATA  = 2  # packed rtattrs specific to type, e.g. vlan
+  IFLA_INFO_XSTATS  = 3
+
+
+  # INFO_DATA for INFO_KIND == "vlan"
+  IFLA_VLAN_UNSPEC  = 0
+  IFLA_VLAN_ID    = 1  # ushort
+  IFLA_VLAN_FLAGS  = 2  # struct ifla_vlan_flags
+  IFLA_VLAN_EGRESS_QOS  = 3  # followed by instance of IFLA_VLAN_QOS_*
+  IFLA_VLAN_INGRESS_QOS  = 4  # followed by instance of IFLA_VLAN_QOS_*
+  IFLA_VLAN_PROTOCOL    = 5
+
+  IFLA_VLAN_QOS_UNSPEC  = 0
+  IFLA_VLAN_QOS_MAPPING = 1
+
+  IFLA_MACVLAN_UNSPEC  = 0
+  IFLA_MACVLAN_MODE  = 1
+  IFLA_MACVLAN_FLAGS  = 2
+  IFLA_MACVLAN_MACADDR_MODE = 3
+  IFLA_MACVLAN_MACADDR = 4
+  IFLA_MACVLAN_MACADDR_DATA = 5
+  IFLA_MACVLAN_MACADDR_COUNT = 6
+
+  MACVLAN_MODE_PRIVATE  = 1 # don't talk to other macvlans
+  MACVLAN_MODE_VEPA  = 2 # talk to other ports through ext bridge
+  MACVLAN_MODE_BRIDGE  = 4 # talk to bridge ports directly
+  MACVLAN_MODE_PASSTHRU  = 8 # take over the underlying device
+  MACVLAN_MODE_SOURCE = 16 # use source MAC address list to assign
+
+  # TODO: VXLAN and VF stuff is missing here
+
+  # linux/if_vlan.h
+  VLAN_FLAG_REORDER_HDR    = 0x1
+  VLAN_FLAG_GVRP    = 0x2
+  VLAN_FLAG_LOOSE_BINDING  = 0x4
+  VLAN_FLAG_MVRP          = 0x8
+
+  # from linux/if_addr.h
+  IFA_UNSPEC      = 0
+  IFA_ADDRESS     = 1
+  IFA_LOCAL       = 2
+  IFA_LABEL       = 3
+  IFA_BROADCAST   = 4
+  IFA_ANYCAST     = 5
+  IFA_CACHEINFO   = 6
+  IFA_MULTICAST   = 7
+  IFA_FLAGS       = 8
+
+  IFA_F_SECONDARY      = 0x01
+  IFA_F_TEMPORARY      = IFA_F_SECONDARY
+  IFA_F_NODAD          = 0x02
+  IFA_F_OPTIMISTIC     = 0x04
+  IFA_F_DADFAILED      = 0x08
+  IFA_F_HOMEADDRESS    = 0x10
+  IFA_F_DEPRECATED     = 0x20
+  IFA_F_TENTATIVE      = 0x40
+  IFA_F_PERMANENT      = 0x80
+  IFA_F_MANAGETEMPADDR = 0x100
+  IFA_F_NOPREFIXROUTE  = 0x200
+  IFA_F_MCAUTOJOIN     = 0x400
+  IFA_F_STABLE_PRIVACY = 0x800
+
+  # from linux/if_arp.h - selected subset
+  ARPHRD_NETROM    = 0
+  ARPHRD_ETHER    = 1
+  ARPHRD_EETHER    = 2
+  ARPHRD_AX25    = 3
+  ARPHRD_PRONET    = 4
+  ARPHRD_CHAOS    = 5
+  ARPHRD_IEEE802  = 6
+  ARPHRD_ARCNET    = 7
+  ARPHRD_APPLETLK  = 8
+  ARPHRD_DLCI    = 15
+  ARPHRD_ATM    = 19
+  ARPHRD_METRICOM  = 23