Function ccp_configure_session_cipher

dpdk/drivers/crypto/ccp/ccp_crypto.c:663–751

configure session */

/* configure session */
static int
ccp_configure_session_cipher(struct ccp_session *sess,
			     const struct rte_crypto_sym_xform *xform)
{
	const struct rte_crypto_cipher_xform *cipher_xform = NULL;
	size_t i, j, x;

	cipher_xform = &xform->cipher;

	/* set cipher direction */
	if (cipher_xform->op ==  RTE_CRYPTO_CIPHER_OP_ENCRYPT)
		sess->cipher.dir = CCP_CIPHER_DIR_ENCRYPT;
	else
		sess->cipher.dir = CCP_CIPHER_DIR_DECRYPT;

	/* set cipher key */
	sess->cipher.key_length = cipher_xform->key.length;
	rte_memcpy(sess->cipher.key, cipher_xform->key.data,
		   cipher_xform->key.length);

	/* set iv parameters */
	sess->iv.offset = cipher_xform->iv.offset;
	sess->iv.length = cipher_xform->iv.length;

	switch (cipher_xform->algo) {
	case RTE_CRYPTO_CIPHER_AES_CTR:
		sess->cipher.algo = CCP_CIPHER_ALGO_AES_CTR;
		sess->cipher.um.aes_mode = CCP_AES_MODE_CTR;
		sess->cipher.engine = CCP_ENGINE_AES;
		break;
	case RTE_CRYPTO_CIPHER_AES_ECB:
		sess->cipher.algo = CCP_CIPHER_ALGO_AES_CBC;
		sess->cipher.um.aes_mode = CCP_AES_MODE_ECB;
		sess->cipher.engine = CCP_ENGINE_AES;
		break;
	case RTE_CRYPTO_CIPHER_AES_CBC:
		sess->cipher.algo = CCP_CIPHER_ALGO_AES_CBC;
		sess->cipher.um.aes_mode = CCP_AES_MODE_CBC;
		sess->cipher.engine = CCP_ENGINE_AES;
		break;
	case RTE_CRYPTO_CIPHER_3DES_CBC:
		sess->cipher.algo = CCP_CIPHER_ALGO_3DES_CBC;
		sess->cipher.um.des_mode = CCP_DES_MODE_CBC;
		sess->cipher.engine = CCP_ENGINE_3DES;
		break;
	default:
		CCP_LOG_ERR("Unsupported cipher algo");
		return -1;
	}


	switch (sess->cipher.engine) {
	case CCP_ENGINE_AES:
		if (sess->cipher.key_length == 16)
			sess->cipher.ut.aes_type = CCP_AES_TYPE_128;
		else if (sess->cipher.key_length == 24)
			sess->cipher.ut.aes_type = CCP_AES_TYPE_192;
		else if (sess->cipher.key_length == 32)