examples/ipsec-secgw: revert SA salt endianness

The previous commit swapped the bytes of SA salt which
led to incorrect work of the ipsec-secgw application.
This patch reverts the previous commit and changes
the type of the salt field in the ipsec_sa structure.

Fixes: e6bfd96 ("examples/ipsec-secgw: fix SA salt endianness")
Cc: stable@dpdk.org

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>

examples/ipsec-secgw/ipsec.h

@@ -117,7 +117,7 @@ struct __rte_cache_aligned ipsec_sa {
 	uint32_t spi;
 	struct cdev_qp *cqp[RTE_MAX_LCORE];
 	uint64_t seq;
-	uint32_t salt;
+	rte_be32_t salt;
 	uint32_t fallback_sessions;
 	enum rte_crypto_cipher_algorithm cipher_algo;
 	enum rte_crypto_auth_algorithm auth_algo;

examples/ipsec-secgw/sa.c

@@ -374,7 +374,6 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
 	uint32_t ti; /*token index*/
 	uint32_t *ri /*rule index*/;
 	struct ipsec_sa_cnt *sa_cnt;
-	rte_be32_t salt; /*big-endian salt*/
 	uint32_t cipher_algo_p = 0;
 	uint32_t auth_algo_p = 0;
 	uint32_t aead_algo_p = 0;
@@ -509,8 +508,8 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
 			if (algo->algo == RTE_CRYPTO_CIPHER_AES_CTR) {
 				key_len -= 4;
 				rule->cipher_key_len = key_len;
-				memcpy(&salt, &rule->cipher_key[key_len], 4);
-				rule->salt = rte_be_to_cpu_32(salt);
+				memcpy(&rule->salt,
+					&rule->cipher_key[key_len], 4);
 			}
 
 			cipher_algo_p = 1;
@@ -574,8 +573,8 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
 				key_len -= 4;
 				rule->auth_key_len = key_len;
 				rule->iv_len = algo->iv_len;
-				memcpy(&salt, &rule->auth_key[key_len], 4);
-				rule->salt = rte_be_to_cpu_32(salt);
+				memcpy(&rule->salt,
+					&rule->auth_key[key_len], 4);
 			}
 
 			auth_algo_p = 1;
@@ -633,8 +632,8 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
 
 			key_len -= 4;
 			rule->cipher_key_len = key_len;
-			memcpy(&salt, &rule->cipher_key[key_len], 4);
-			rule->salt = rte_be_to_cpu_32(salt);
+			memcpy(&rule->salt,
+				&rule->cipher_key[key_len], 4);
 
 			aead_algo_p = 1;
 			continue;