[PATCH] test/crypto: fix RSA decrypt op validation

[Gowrishankar Muthukrishnan]

Following RSA encrypt op, same plaintext buffer is used as output
buffer for decrypt op, hence comparing plaintext buffer against
same buffer pointer in crypto op always succeed irrespective of
whether decrypt op succeeds or not. This patch fixes this issue
with a local buffer for crypto op.

Fixes: 5ae36995f10 ("test/crypto: move RSA enqueue/dequeue into functions")
Cc: stable at dpdk.org

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn at marvell.com>
---
 app/test/test_cryptodev_asym.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/app/test/test_cryptodev_asym.c b/app/test/test_cryptodev_asym.c
index 226270556d..cd4fe7e14e 100644
--- a/app/test/test_cryptodev_asym.c
+++ b/app/test/test_cryptodev_asym.c
@@ -174,7 +174,10 @@ queue_ops_rsa_enc_dec(void *sess)
 	struct rte_crypto_op *op, *result_op;
 	struct rte_crypto_asym_op *asym_op;
 	uint8_t cipher_buf[TEST_DATA_SIZE] = {0};
-	int ret, status = TEST_SUCCESS;
+	uint8_t msg_buf[TEST_DATA_SIZE] = {0};
+	int ret, status;
+
+	memcpy(msg_buf, rsaplaintext.data, rsaplaintext.len);
 
 	/* Set up crypto op data structure */
 	op = rte_crypto_op_alloc(op_mpool, RTE_CRYPTO_OP_TYPE_ASYMMETRIC);
@@ -189,7 +192,7 @@ queue_ops_rsa_enc_dec(void *sess)
 	/* Compute encryption on the test vector */
 	asym_op->rsa.op_type = RTE_CRYPTO_ASYM_OP_ENCRYPT;
 
-	asym_op->rsa.message.data = rsaplaintext.data;
+	asym_op->rsa.message.data = msg_buf;
 	asym_op->rsa.cipher.data = cipher_buf;
 	asym_op->rsa.cipher.length = RTE_DIM(rsa_n);
 	asym_op->rsa.message.length = rsaplaintext.len;
@@ -224,6 +227,7 @@ queue_ops_rsa_enc_dec(void *sess)
 	asym_op = result_op->asym;
 	asym_op->rsa.message.length = RTE_DIM(rsa_n);
 	asym_op->rsa.op_type = RTE_CRYPTO_ASYM_OP_DECRYPT;
+	memset(asym_op->rsa.message.data, 0, asym_op->rsa.message.length);
 
 	/* Process crypto operation */
 	if (rte_cryptodev_enqueue_burst(dev_id, 0, &op, 1) != 1) {
@@ -240,11 +244,20 @@ queue_ops_rsa_enc_dec(void *sess)
 		status = TEST_FAILED;
 		goto error_exit;
 	}
-	status = TEST_SUCCESS;
+
+	if (result_op->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
+		RTE_LOG(ERR, USER1, "Expected crypto op to succeed\n");
+		status = TEST_FAILED;
+		goto error_exit;
+	}
+
 	ret = rsa_verify(&rsaplaintext, result_op);
-	if (ret)
+	if (ret) {
 		status = TEST_FAILED;
+		goto error_exit;
+	}
 
+	status = TEST_SUCCESS;
 error_exit:
 
 	rte_crypto_op_free(op);
-- 
2.25.1