[dpdk-dev] [PATCH v2] net/i40e: add fdir nvgre parameters check

[Wei Zhao <wei.zhao1@intel.com>]

Add mask parameters check in nvgre parser for flow API.

Fixes: 30965ca341278 ("net/i40e: add NVGRE flow parsing")

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>

---

V2:
-change c_k_s_rsvd0_ver mask check to 0xFFFF.
---
 drivers/net/i40e/i40e_flow.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index 7e4936e..fa2e168 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -3610,6 +3610,41 @@ i40e_flow_parse_nvgre_pattern(__rte_unused struct rte_eth_dev *dev,
 						       "Invalid TNI mask");
 					return -rte_errno;
 				}
+				if (nvgre_mask->protocol &&
+					nvgre_mask->protocol != 0xFFFF) {
+					rte_flow_error_set(error, EINVAL,
+						RTE_FLOW_ERROR_TYPE_ITEM,
+						item,
+						"Invalid NVGRE item");
+					return -rte_errno;
+				}
+				if (nvgre_mask->c_k_s_rsvd0_ver &&
+					nvgre_mask->c_k_s_rsvd0_ver !=
+					rte_cpu_to_be_16(0xFFFF)) {
+					rte_flow_error_set(error, EINVAL,
+						   RTE_FLOW_ERROR_TYPE_ITEM,
+						   item,
+						   "Invalid NVGRE item");
+					return -rte_errno;
+				}
+				if (nvgre_spec->c_k_s_rsvd0_ver !=
+					rte_cpu_to_be_16(0x2000) &&
+					nvgre_mask->c_k_s_rsvd0_ver) {
+					rte_flow_error_set(error, EINVAL,
+						   RTE_FLOW_ERROR_TYPE_ITEM,
+						   item,
+						   "Invalid NVGRE item");
+					return -rte_errno;
+				}
+				if (nvgre_mask->protocol &&
+					nvgre_spec->protocol !=
+					rte_cpu_to_be_16(0x6558)) {
+					rte_flow_error_set(error, EINVAL,
+						   RTE_FLOW_ERROR_TYPE_ITEM,
+						   item,
+						   "Invalid NVGRE item");
+					return -rte_errno;
+				}
 				rte_memcpy(((uint8_t *)&tenant_id_be + 1),
 					   nvgre_spec->tni, 3);
 				filter->tenant_id =
-- 
2.9.3