1 files changed, 18 insertions, 0 deletions
diff --git a/net/base/network_interfaces.h b/net/base/network_interfaces.h
index 73ad09a..6b21f51 100644
--- a/net/base/network_interfaces.h
+++ b/net/base/network_interfaces.h
@@ -40,6 +40,24 @@ struct Parsed;
 
 namespace net {
 
+// A subset of IP address attributes which are actionable by the
+// application layer. Currently unimplemented for all hosts;
+// IP_ADDRESS_ATTRIBUTE_NONE is always returned.
+enum IPAddressAttributes {
+  IP_ADDRESS_ATTRIBUTE_NONE = 0,
+
+  // A temporary address is dynamic by nature and will not contain MAC
+  // address. Presence of MAC address in IPv6 addresses can be used to
+  // track an endpoint and cause privacy concern. Please refer to
+  // RFC4941.
+  IP_ADDRESS_ATTRIBUTE_TEMPORARY = 1 << 0,
+
+  // A temporary address could become deprecated once the preferred
+  // lifetime is reached. It is still valid but shouldn't be used to
+  // create new connections.
+  IP_ADDRESS_ATTRIBUTE_DEPRECATED = 1 << 1,
+};
+
 // struct that is used by GetNetworkList() to represent a network
 // interface.
 struct NET_EXPORT NetworkInterface {