From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Date: Thu, 9 Jun 2016 08:42:42 +0000 (+0100)
Subject: examples/ipsec-secgw: fix esp padding check
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6723ea61ac6cdcd090c985ee2f0b8cf667ec7596;p=dpdk.git

examples/ipsec-secgw: fix esp padding check

Current code fails to correctly check padding sequence for inbound
packets.
Padding sequence starts on 1 but it checks for 0.

Fixes: d299106e8e31 ("examples/ipsec-secgw: add IPsec sample application")

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---

diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
index 0f6b33efda..7dce78cec4 100644
--- a/examples/ipsec-secgw/esp.c
+++ b/examples/ipsec-secgw/esp.c
@@ -139,7 +139,7 @@ esp4_tunnel_inbound_post_crypto(struct rte_mbuf *m, struct ipsec_sa *sa,
 
 	padding = pad_len - *pad_len;
 	for (i = 0; i < *pad_len; i++) {
-		if (padding[i] != i) {
+		if (padding[i] != i + 1) {
 			RTE_LOG(ERR, IPSEC_ESP, "invalid pad_len field\n");
 			return -EINVAL;
 		}