From 30b8b4a5d49e7884dcb830ffb1167ec4ddcdb931 Mon Sep 17 00:00:00 2001
From: Damjan Marion <damarion@cisco.com>
Date: Wed, 29 May 2019 18:49:25 +0200
Subject: ipsec: fix perf issue in esp_aad_fill

Type: fix
Fixes: 47feb11
Change-Id: I6b3b97cd361eef19c910c14fd06edb001a4c191b
Signed-off-by: Damjan Marion <damarion@cisco.com>
---
 src/vnet/ipsec/esp.h | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/vnet/ipsec/esp.h b/src/vnet/ipsec/esp.h
index 070726faa34..f36f52a4752 100644
--- a/src/vnet/ipsec/esp.h
+++ b/src/vnet/ipsec/esp.h
@@ -137,18 +137,21 @@ esp_aad_fill (vnet_crypto_op_t * op,
   esp_aead_t *aad;
 
   aad = (esp_aead_t *) op->aad;
-  clib_memcpy_fast (aad, esp, 8);
+  aad->data[0] = esp->spi;
 
   if (ipsec_sa_is_set_USE_ESN (sa))
     {
       /* SPI, seq-hi, seq-low */
-      aad->data[2] = aad->data[1];
       aad->data[1] = clib_host_to_net_u32 (sa->seq_hi);
+      aad->data[2] = esp->seq;
       op->aad_len = 12;
     }
   else
-    /* SPI, seq-low */
-    op->aad_len = 8;
+    {
+      /* SPI, seq-low */
+      aad->data[1] = esp->seq;
+      op->aad_len = 8;
+    }
 }
 #endif /* __ESP_H__ */
 
-- 
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