[dpdk-dev] [PATCH 06/12] examples/fips: set initial IV in AES-GCM if configured only salt value

[michaelsh]

From: Michael Shamis <michae...@marvell.com>

Configurated AES-GCM IV may include only salt value which length
is 12B. In this case driver should set second part of IV to
initial value = 0x1.

Signed-off-by: Michael Shamis <michae...@marvell.com>
---
 examples/fips_validation/main.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/examples/fips_validation/main.c b/examples/fips_validation/main.c
index c83763b13..895bfa7d8 100644
--- a/examples/fips_validation/main.c
+++ b/examples/fips_validation/main.c
@@ -25,6 +25,7 @@
 #define CRYPTODEV_BK_DIR_KEY   "broken-test-dir"
 #define CRYPTODEV_ENC_KEYWORD  "enc"
 #define CRYPTODEV_DEC_KEYWORD  "dec"
+#define IV_SALT_LEN 12
 
 struct fips_test_vector vec;
 struct fips_test_interim_info info;
@@ -580,10 +581,16 @@ prepare_aead_op(void)
        __rte_crypto_op_reset(env.op, RTE_CRYPTO_OP_TYPE_SYMMETRIC);
        rte_pktmbuf_reset(env.mbuf);
 
-       if (info.algo == FIPS_TEST_ALGO_AES_CCM)
+       if (info.algo == FIPS_TEST_ALGO_AES_CCM) {
                memcpy(iv + 1, vec.iv.val, vec.iv.len);
-       else
+       } else {
                memcpy(iv, vec.iv.val, vec.iv.len);
+               /* Set initial IV if specified only salt IV value */
+               if (vec.iv.len == IV_SALT_LEN) {
+                       memset(&iv[vec.iv.len], 0, 4);
+                       iv[vec.iv.len + 3] = 1;
+               }
+       }
 
        sym->m_src = env.mbuf;
        sym->aead.data.offset = 0;
-- 
2.23.0