enum kni_tun_mode{
	KNI_TUN_MODE_BLOCK = 0,
	KNI_TUN_MODE_NOBLOCK = 2,
};

struct kni_tun_handle;
void kni_tun_destroy(struct kni_tun_handle *tun_handle);
struct kni_tun_handle* kni_tun_init(char *tun_name, enum kni_tun_mode mode, void *logger);
int kni_tun_write(struct kni_tun_handle *handle, char *buff, uint16_t buff_len);
int kni_tun_read(struct kni_tun_handle *handle, char *buff, uint16_t buff_len);