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-rw-r--r--src/vnet/ipsec/esp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/vnet/ipsec/esp.h b/src/vnet/ipsec/esp.h
index 74ab1f05778..8e61d9d751d 100644
--- a/src/vnet/ipsec/esp.h
+++ b/src/vnet/ipsec/esp.h
@@ -219,6 +219,7 @@ hmac_calc (vlib_main_t * vm, ipsec_sa_t * sa, u8 * data, int data_len,
op->src = data;
op->len = data_len;
op->dst = signature;
+ op->hmac_trunc_len = sa->integ_trunc_size;
#if 0
HMAC_Init_ex (ctx, key, key_len, md, NULL);