+static __rte_always_inline int
+cpt_mac_len_verify(struct rte_crypto_auth_xform *auth)
+{
+ uint16_t mac_len = auth->digest_length;
+ int ret;
+
+ switch (auth->algo) {
+ case RTE_CRYPTO_AUTH_MD5:
+ case RTE_CRYPTO_AUTH_MD5_HMAC:
+ ret = (mac_len == 16) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA1:
+ case RTE_CRYPTO_AUTH_SHA1_HMAC:
+ ret = (mac_len == 20) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA224:
+ case RTE_CRYPTO_AUTH_SHA224_HMAC:
+ ret = (mac_len == 28) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA256:
+ case RTE_CRYPTO_AUTH_SHA256_HMAC:
+ ret = (mac_len == 32) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA384:
+ case RTE_CRYPTO_AUTH_SHA384_HMAC:
+ ret = (mac_len == 48) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA512:
+ case RTE_CRYPTO_AUTH_SHA512_HMAC:
+ ret = (mac_len == 64) ? 0 : -1;
+ break;
+ case RTE_CRYPTO_AUTH_NULL:
+ ret = 0;
+ break;
+ default:
+ ret = -1;
+ }
+
+ return ret;
+}
+