[dpdk-dev] [PATCH] examples/l2fwd-crypto: fix AEAD tests when AAD is zero

[Pablo de Lara]

For AEAD algorithms, additional authenticated data (AAD)
can be passed, but it is optional, so its size can be zero.
However, it is required to set this length to zero in the crypto
operation to avoid undefined behaviour.

Fixes: 617a7949c98a ("examples/l2fwd-crypto: parse AAD parameter")

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
 examples/l2fwd-crypto/main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 15fab10..2eb14c1 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -470,6 +470,10 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
 			op->sym->auth.aad.data = cparams->aad.data;
 			op->sym->auth.aad.phys_addr = cparams->aad.phys_addr;
 			op->sym->auth.aad.length = cparams->aad.length;
+		} else {
+			op->sym->auth.aad.data = NULL;
+			op->sym->auth.aad.phys_addr = 0;
+			op->sym->auth.aad.length = 0;
 		}
 	}
 
@@ -670,7 +674,8 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
 					generate_random_key(port_cparams[i].aad.data,
 						port_cparams[i].aad.length);
 
-			}
+			} else
+				port_cparams[i].aad.length = 0;
 
 			if (options->auth_xform.auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
 				port_cparams[i].hash_verify = 1;
-- 
2.7.4