Function process_openssl_cipher_op

dpdk/drivers/crypto/openssl/rte_openssl_pmd.c:1835–1879

Process cipher operation */

/** Process cipher operation */
static void
process_openssl_cipher_op(struct openssl_qp *qp, struct rte_crypto_op *op,
		struct openssl_session *sess, struct rte_mbuf *mbuf_src,
		struct rte_mbuf *mbuf_dst)
{
	uint8_t *dst, *iv;
	int srclen, status;
	uint8_t inplace = (mbuf_src == mbuf_dst) ? 1 : 0;

	/*
	 * Segmented OOP destination buffer is not supported for encryption/
	 * decryption. In case of des3ctr, even inplace segmented buffers are
	 * not supported.
	 */
	if (!rte_pktmbuf_is_contiguous(mbuf_dst) &&
			(!inplace || sess->cipher.mode != OPENSSL_CIPHER_LIB)) {
		op->status = RTE_CRYPTO_OP_STATUS_ERROR;
		return;
	}

	srclen = op->sym->cipher.data.length;
	dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
			op->sym->cipher.data.offset);

	iv = rte_crypto_op_ctod_offset(op, uint8_t *,
			sess->iv.offset);

	EVP_CIPHER_CTX *ctx = get_local_cipher_ctx(sess, qp);

	if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
		if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
			status = process_openssl_cipher_encrypt(mbuf_src, dst,
					op->sym->cipher.data.offset, iv,
					srclen, ctx, inplace);
		else
			status = process_openssl_cipher_decrypt(mbuf_src, dst,
					op->sym->cipher.data.offset, iv,
					srclen, ctx, inplace);
	else
		status = process_openssl_cipher_des3ctr(mbuf_src, dst,
				op->sym->cipher.data.offset, iv, srclen, ctx);

	if (status != 0)
		op->status = RTE_CRYPTO_OP_STATUS_ERROR;
}

/** Process cipher operation */
static void