[PATCH v2] app/testpmd: fix wrong encap/decap size calculation

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From: Michael Baum <michaelba@nvidia.com>
To: <dev@dpdk.org>
Cc: Aman Singh <aman.deep.singh@intel.com>,
	Yuying Zhang <yuying.zhang@intel.com>,
	Ferruh Yigit <ferruh.yigit@amd.com>,
	"Thomas Monjalon" <thomas@monjalon.net>, <orika@nvidia.com>,
	<stable@dpdk.org>
Subject: [PATCH v2] app/testpmd: fix wrong encap/decap size calculation
Date: Thu, 16 Mar 2023 20:24:12 +0200	[thread overview]
Message-ID: <20230316182412.1831799-1-michaelba@nvidia.com> (raw)
In-Reply-To: <20230316171654.1827514-1-michaelba@nvidia.com>

Testpmd app has some functions to create either encap or decap buffer
for some special cases:
 - "l2_encap" and "l2_decap"
 - "mplsogre_encap" and "mplsogre_decap"
 - "mplsoudp_encap" and "mplsoudp_decap"

The functions use both "rte_flow_item_eth" and "rte_flow_item_vlan"
structures to represent the headers and copy them into "raw_encap"
action. The size of either "raw_encap" or "raw_decap" is calculated as
sum of headers size.

However, the both "rte_flow_item_eth" and "rte_flow_item_vlan" contain
more fields than original headers, so using them cause bad size
calculation.

This patch uses "rte_ether_hdr" and "rte_vlan_hdr" structures for header
size calculation.

Fixes: 3e77031be855 ("app/testpmd: add MPLSoGRE encapsulation")
Fixes: a1191d39cb57 ("app/testpmd: add MPLSoUDP encapsulation")
Cc: orika@nvidia.com
Cc: stable@dpdk.org

Signed-off-by: Michael Baum <michaelba@nvidia.com>
---

v2:
- Fix typo in commit log.
- Using "sizeof(struct rte_*_hdr)" instead of "*_LEN" macros.

 app/test-pmd/cmdline_flow.c | 48 ++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 9309607f11..58939ec321 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -8245,15 +8245,15 @@ parse_vc_action_l2_encap(struct context *ctx, const struct token *token,
 	       l2_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);
 	memcpy(eth.hdr.src_addr.addr_bytes,
 	       l2_encap_conf.eth_src, RTE_ETHER_ADDR_LEN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (l2_encap_conf.select_vlan) {
 		if (l2_encap_conf.select_ipv4)
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 		else
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	action_encap_data->conf.size = header -
 		action_encap_data->data;
@@ -8301,11 +8301,11 @@ parse_vc_action_l2_decap(struct context *ctx, const struct token *token,
 	header = action_decap_data->data;
 	if (l2_decap_conf.select_vlan)
 		eth.hdr.ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (l2_decap_conf.select_vlan) {
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	action_decap_data->conf.size = header -
 		action_decap_data->data;
@@ -8385,15 +8385,15 @@ parse_vc_action_mplsogre_encap(struct context *ctx, const struct token *token,
 	       mplsogre_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);
 	memcpy(eth.hdr.src_addr.addr_bytes,
 	       mplsogre_encap_conf.eth_src, RTE_ETHER_ADDR_LEN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (mplsogre_encap_conf.select_vlan) {
 		if (mplsogre_encap_conf.select_ipv4)
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 		else
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	if (mplsogre_encap_conf.select_ipv4) {
 		memcpy(header, &ipv4, sizeof(ipv4));
@@ -8480,15 +8480,15 @@ parse_vc_action_mplsogre_decap(struct context *ctx, const struct token *token,
 	       mplsogre_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);
 	memcpy(eth.hdr.src_addr.addr_bytes,
 	       mplsogre_encap_conf.eth_src, RTE_ETHER_ADDR_LEN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (mplsogre_encap_conf.select_vlan) {
 		if (mplsogre_encap_conf.select_ipv4)
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 		else
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	if (mplsogre_encap_conf.select_ipv4) {
 		memcpy(header, &ipv4, sizeof(ipv4));
@@ -8579,15 +8579,15 @@ parse_vc_action_mplsoudp_encap(struct context *ctx, const struct token *token,
 	       mplsoudp_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);
 	memcpy(eth.hdr.src_addr.addr_bytes,
 	       mplsoudp_encap_conf.eth_src, RTE_ETHER_ADDR_LEN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (mplsoudp_encap_conf.select_vlan) {
 		if (mplsoudp_encap_conf.select_ipv4)
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 		else
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	if (mplsoudp_encap_conf.select_ipv4) {
 		memcpy(header, &ipv4, sizeof(ipv4));
@@ -8676,15 +8676,15 @@ parse_vc_action_mplsoudp_decap(struct context *ctx, const struct token *token,
 	       mplsoudp_encap_conf.eth_dst, RTE_ETHER_ADDR_LEN);
 	memcpy(eth.hdr.src_addr.addr_bytes,
 	       mplsoudp_encap_conf.eth_src, RTE_ETHER_ADDR_LEN);
-	memcpy(header, &eth, sizeof(eth));
-	header += sizeof(eth);
+	memcpy(header, &eth.hdr, sizeof(struct rte_ether_hdr));
+	header += sizeof(struct rte_ether_hdr);
 	if (mplsoudp_encap_conf.select_vlan) {
 		if (mplsoudp_encap_conf.select_ipv4)
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 		else
 			vlan.hdr.eth_proto = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
-		memcpy(header, &vlan, sizeof(vlan));
-		header += sizeof(vlan);
+		memcpy(header, &vlan.hdr, sizeof(struct rte_vlan_hdr));
+		header += sizeof(struct rte_vlan_hdr);
 	}
 	if (mplsoudp_encap_conf.select_ipv4) {
 		memcpy(header, &ipv4, sizeof(ipv4));
-- 
2.25.1

next prev parent reply	other threads:[~2023-03-16 18:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-16 17:16 [PATCH] app/testpmd: fix wrong encap/decap size calculation Michael Baum
2023-03-16 17:26 ` Thomas Monjalon
2023-03-16 18:24 ` Michael Baum [this message]
2023-03-23 10:34   ` [PATCH v2] " Ori Kam
2023-03-23 11:09     ` Ferruh Yigit

find likely ancestor, descendant, or conflicting patches for this message:
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