Responders: Make the client context more generic This is useufl to allow reusing the responder code with other protocols. Store protocol data and responder state data behind opaque pointers and use tallog_get_type to check they are of the right type. This also allows to store per responder state_ctx so that, for example, the autofs responder does not have to carry useless variables used only by the nss responder. Resolves: https://fedorahosted.org/sssd/ticket/2918 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

cache_req: add support for UPN Reviewed-by: Sumit Bose <sbose@redhat.com>

cmocka: include mock_parse_inp in header file This is a non static function that is supposed to be used in tests but it was missing from header file. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

CMocka based test for the NSS responder