examples/l2fwd-crypto: fix AEAD tests when AAD is zero

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")
Cc: stable@dpdk.org
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 15fab102bf7f411a54db48985fde18c84a3a0377..2eb14c14c677f78c7cd28b5ec7b34ef53bb0c9f4 100644 (file)
--- 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;