__NR_add_key
__SYSCALL(__NR_add_key, sys_add_key)
case __NR_add_key:
key_id = syscall(__NR_add_key, "asymmetric", key_der_path, der_buf,
__SYSCALL(__NR_add_key, sys_add_key)
return syscall(__NR_add_key, "asymmetric", "libbpf_session_key",