#include <stdbool.h>
-bool use_smack(void);
+#define SMACK_FLOOR_LABEL "_"
+#define SMACK_STAR_LABEL "*"
+
+bool mac_smack_use(void);
+
+int mac_smack_set_path(const char *path, const char *label);
+int mac_smack_set_fd(int fd, const char *label);
+int mac_smack_set_ip_in_fd(int fd, const char *label);
+int mac_smack_set_ip_out_fd(int fd, const char *label);
+int mac_smack_relabel_in_dev(const char *path);