int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
	       void *buf, int buf_len, int in_len, int *pout_len)
{
	switch (key->type) {
	case CEPH_CRYPTO_NONE:
		*pout_len = in_len;
		return 0;
	case CEPH_CRYPTO_AES:
		return ceph_aes_crypt(key, encrypt, buf, buf_len, in_len,
				      pout_len);
	default:
		return -ENOTSUPP;
	}
}
Weaknesses in this category are related to improper management of system resources.