int nodemap_set_mapping_mode(const char *name, enum nodemap_mapping_modes mode);
int nodemap_set_squash_uid(const char *name, uid_t uid);
int nodemap_set_squash_gid(const char *name, gid_t gid);
int nodemap_set_mapping_mode(const char *name, enum nodemap_mapping_modes mode);
int nodemap_set_squash_uid(const char *name, uid_t uid);
int nodemap_set_squash_gid(const char *name, gid_t gid);