get_ownership() and new_config_protect() functions are defined and called in <sys-apps/portage-2.2.13 ebuilds. In >=sys-apps/portage-2.2.14 ebuilds they are called but undefined. get_ownership() is used in usersync and userpriv migrations code. new_config_protect() is used in repos.conf migration code.
This is fixed in cvs: 20 Dec 2014; Zac Medico <zmedico@gentoo.org> portage-2.2.14.ebuild, portage-2.2.15.ebuild: Add missing get_ownership and new_config_protect functions for bug #533010.