[dpdk-dev] [PATCH v2 5/6] examples/ipsec-secgw: iv should be be64

[aviadye at dev.mellanox.co.il]

From: Aviad Yehezkel <aviadye at mellanox.com>

According to rfc4106 the IV should be unique
and can be implemented as counter.
The changed was created because putting an analyzer
on wire and comparing packets generated by this
application and Linux kernel.
Linux kernel sets IV as BE, so it is worth to do
the same for future debug / comparison.

Issue: None
Signed-off-by: Aviad Yehezkel <aviadye at mellanox.com>
--
v2:
* Fix commit message
---
 examples/ipsec-secgw/esp.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
index 6215ad4..de55c35 100644
--- a/examples/ipsec-secgw/esp.c
+++ b/examples/ipsec-secgw/esp.c
@@ -336,7 +336,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 	if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_GCM) {
 		uint8_t *aad;
 
-		*iv = sa->seq;
+		*iv = rte_cpu_to_be_64(sa->seq);
 		sym_cop->aead.data.offset = ip_hdr_len +
 			sizeof(struct esp_hdr) + sa->iv_len;
 		sym_cop->aead.data.length = pad_payload_len;
@@ -349,7 +349,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 
 		struct cnt_blk *icb = get_cnt_blk(m);
 		icb->salt = sa->salt;
-		icb->iv = sa->seq;
+		icb->iv = rte_cpu_to_be_64(sa->seq);
 		icb->cnt = rte_cpu_to_be_32(1);
 
 		aad = get_aad(m);
@@ -372,7 +372,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 			sym_cop->cipher.data.length = pad_payload_len + sa->iv_len;
 			break;
 		case RTE_CRYPTO_CIPHER_AES_CTR:
-			*iv = sa->seq;
+			*iv = rte_cpu_to_be_64(sa->seq);
 			sym_cop->cipher.data.offset = ip_hdr_len +
 				sizeof(struct esp_hdr) + sa->iv_len;
 			sym_cop->cipher.data.length = pad_payload_len;
@@ -391,7 +391,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 
 		struct cnt_blk *icb = get_cnt_blk(m);
 		icb->salt = sa->salt;
-		icb->iv = sa->seq;
+		icb->iv = rte_cpu_to_be_64(sa->seq);
 		icb->cnt = rte_cpu_to_be_32(1);
 
 		switch (sa->auth_algo) {
-- 
2.7.4