From: Xiaoyu Min Date: Wed, 11 Sep 2019 08:46:15 +0000 (+0800) Subject: net/mlx5: validate flow rule item order X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=906a2efae8da8507bab2d089c544d4fa4150a5fd;p=dpdk.git net/mlx5: validate flow rule item order The Item order validation between L2 and L3 is missing, which leading to the following flow rule is accepted: testpmd> flow create 0 ingress pattern ipv4 / eth / end actions drop / end Only the outer L3 layer should check whether the L2 layer is present, because the L3 layer could directly follow the tunnel layer without L2 layer. Meanwhile inner L2 layer should check whether there is inner L3 layer before it. Fixes: 23c1d42c7138 ("net/mlx5: split flow validation to dedicated function") Cc: stable@dpdk.org Signed-off-by: Xiaoyu Min Acked-by: Viacheslav Ovsiienko --- diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 482f65b5dd..578d00338a 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -1224,6 +1224,11 @@ mlx5_flow_validate_item_eth(const struct rte_flow_item *item, return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L2 layers not supported"); + if (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "inner L2 layer should not " + "follow inner L3 layers"); if (!mask) mask = &rte_flow_item_eth_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, @@ -1270,6 +1275,8 @@ mlx5_flow_validate_item_vlan(const struct rte_flow_item *item, const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN : MLX5_FLOW_LAYER_OUTER_VLAN; + const uint64_t l2m = tunnel ? MLX5_FLOW_LAYER_INNER_L2 : + MLX5_FLOW_LAYER_OUTER_L2; if (item_flags & vlanm) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, @@ -1278,6 +1285,10 @@ mlx5_flow_validate_item_vlan(const struct rte_flow_item *item, return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L2 layer cannot follow L3/L4 layer"); + else if ((item_flags & l2m) == 0) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "no L2 layer before VLAN"); if (!mask) mask = &rte_flow_item_vlan_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, @@ -1390,6 +1401,10 @@ mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item, return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an NVGRE layer."); + else if (!tunnel && !(item_flags & MLX5_FLOW_LAYER_OUTER_L2)) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "no L2 layer before IPV4"); if (!mask) mask = &rte_flow_item_ipv4_mask; else if (mask->hdr.next_proto_id != 0 && @@ -1481,6 +1496,10 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item, return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an NVGRE layer."); + else if (!tunnel && !(item_flags & MLX5_FLOW_LAYER_OUTER_L2)) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "no L2 layer before IPV6"); if (!mask) mask = &rte_flow_item_ipv6_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,