K 10 svn:author V 5 markj K 8 svn:date V 27 2014-12-08T04:44:40.104659Z K 7 svn:log V 384 Add refcounting to IPv6 DAD objects and simplify the DAD code to fix a number of races which could cause double frees or use-after-frees when performing DAD on an address. In particular, an IPv6 address can now only be marked as a duplicate from the DAD callout. Differential Revision: https://reviews.freebsd.org/D1258 Reviewed by: ae, hrs Reported by: rstone MFC after: 1 month END