This patch validate a connection tracking state when matching
'conntrack is' in rte_flow rules. Since conntrack item flags
is a bitmap, then any combination of RTE_FLOW_CONNTRACK_PKT_STATE_*
flags is a valid value to match on.

This patch validate the CT state item.
Fixes: aca19061e4b96 ("net/mlx5: validate connection tracking item")
Cc: sta...@dpdk.org

Signed-off-by: Khadem Ullah <14pwcse1...@uetpeshawar.edu.pk>
---
 drivers/net/mlx5/mlx5_flow.h    |  5 +++++
 drivers/net/mlx5/mlx5_flow_dv.c |  5 +++++
 drivers/net/mlx5/mlx5_flow_hw.c | 10 ++++++++++
 3 files changed, 20 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index e890e732c3..ed0c1fcfd2 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -100,6 +100,11 @@ enum mlx5_indirect_type {
 #define MLX5_INDIRECT_ACT_CT_GET_IDX(index) \
        ((index) & ((1 << MLX5_INDIRECT_ACT_CT_OWNER_SHIFT) - 1))
 
+#define MLX5_FLOW_CONNTRACK_PKT_STATE_ALL \
+       (RTE_FLOW_CONNTRACK_PKT_STATE_VALID | 
RTE_FLOW_CONNTRACK_PKT_STATE_CHANGED | \
+        RTE_FLOW_CONNTRACK_PKT_STATE_INVALID | 
RTE_FLOW_CONNTRACK_PKT_STATE_DISABLED | \
+        RTE_FLOW_CONNTRACK_PKT_STATE_BAD)
+
 /*
  * When HW steering flow engine is used, the CT action handles are encoded in 
a following way:
  * - bits 31:29 - type
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 7b9e5018b8..f673637e7d 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -3289,6 +3289,11 @@ mlx5_flow_dv_validate_item_aso_ct(struct rte_eth_dev 
*dev,
                                                  RTE_FLOW_ERROR_TYPE_ITEM,
                                                  NULL,
                                                  "Conflict status bits");
+               if (spec->flags & ~MLX5_FLOW_CONNTRACK_PKT_STATE_ALL)
+                       return rte_flow_error_set(error, EINVAL,
+                                       RTE_FLOW_ERROR_TYPE_ITEM,
+                                       NULL,
+                                       "Invalid CT item flags");
        }
        /* State change also needs to be considered. */
        *item_flags |= MLX5_FLOW_LAYER_ASO_CT;
diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index 6dc16f80d3..7b279138bc 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -16996,6 +16996,7 @@ flow_hw_validate_rule_pattern(struct rte_eth_dev *dev,
                switch (items->type) {
                const struct rte_flow_item_ethdev *ethdev;
                const struct rte_flow_item_tx_queue *tx_queue;
+               const struct rte_flow_item_conntrack *spec;
                struct mlx5_txq_ctrl *txq;
 
                case RTE_FLOW_ITEM_TYPE_REPRESENTED_PORT:
@@ -17016,6 +17017,15 @@ flow_hw_validate_rule_pattern(struct rte_eth_dev *dev,
                                                          
RTE_FLOW_ERROR_TYPE_ITEM_SPEC, items,
                                                          "Invalid Tx queue");
                        mlx5_txq_release(dev, tx_queue->tx_queue);
+                       break;
+               case RTE_FLOW_ITEM_TYPE_CONNTRACK:
+                       spec = items->spec;
+                       if (spec->flags & ~MLX5_FLOW_CONNTRACK_PKT_STATE_ALL)
+                               return rte_flow_error_set(error, EINVAL,
+                                               RTE_FLOW_ERROR_TYPE_ITEM,
+                                               NULL,
+                                               "Invalid CT item flags");
+                       break;
                default:
                        break;
                }
-- 
2.43.0

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