/* bus */
int sd_rtnl_open(sd_rtnl **nl, unsigned n_groups, ...);
+int sd_rtnl_inc_rcvbuf(const sd_rtnl *const rtnl, const int size);
sd_rtnl *sd_rtnl_ref(sd_rtnl *nl);
sd_rtnl *sd_rtnl_unref(sd_rtnl *nl);
int sd_rtnl_message_link_set_flags(sd_rtnl_message *m, unsigned flags, unsigned change);
int sd_rtnl_message_link_set_type(sd_rtnl_message *m, unsigned type);
+int sd_rtnl_message_link_set_family(sd_rtnl_message *m, unsigned family);
int sd_rtnl_message_link_get_ifindex(sd_rtnl_message *m, int *ifindex);
int sd_rtnl_message_link_get_flags(sd_rtnl_message *m, unsigned *flags);
int sd_rtnl_message_link_get_type(sd_rtnl_message *m, unsigned *type);