* [dpdk-dev] [PATCH] net/mlx5: improve flow item IP validation
@ 2019-11-05 7:51 Xiaoyu Min
2019-11-07 13:49 ` Raslan Darawsheh
0 siblings, 1 reply; 2+ messages in thread
From: Xiaoyu Min @ 2019-11-05 7:51 UTC (permalink / raw)
To: Matan Azrad, Shahaf Shuler, Viacheslav Ovsiienko; +Cc: dev, stable, Ori Kam
Currently PMD doesn't check whether the user specified ethernet type is
conflicting with the followed IPv4/IPv6 items, which leads to HW refuse
to create rule, for example:
... pattern eth type is 0x86dd / ipv4 / end ...
ethernet type is IPv6 but IPv4 is following, this should be validated
as failure and report corresponding error in detail.
Fixes: 23c1d42c7138 ("net/mlx5: split flow validation to dedicated function")
Cc: stable@dpdk.org
Signed-off-by: Xiaoyu Min <jackmin@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.c | 22 +++++++++++++++++++++
drivers/net/mlx5/mlx5_flow.h | 4 ++++
drivers/net/mlx5/mlx5_flow_dv.c | 31 ++++++++++++++++++++++++++++--
drivers/net/mlx5/mlx5_flow_verbs.c | 31 ++++++++++++++++++++++++++++--
4 files changed, 84 insertions(+), 4 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index b4b08f4c6c..54f4cfe04b 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -1403,6 +1403,8 @@ mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
int
mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
uint64_t item_flags,
+ uint64_t last_item,
+ uint16_t ether_type,
const struct rte_flow_item_ipv4 *acc_mask,
struct rte_flow_error *error)
{
@@ -1423,7 +1425,16 @@ mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
uint8_t next_proto = 0xFF;
+ const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
+ MLX5_FLOW_LAYER_OUTER_VLAN |
+ MLX5_FLOW_LAYER_INNER_VLAN);
+ if ((last_item & l2_vlan) && ether_type &&
+ ether_type != RTE_ETHER_TYPE_IPV4)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "IPv4 cannot follow L2/VLAN layer "
+ "which ether type is not IPv4");
if (item_flags & MLX5_FLOW_LAYER_IPIP) {
if (mask && spec)
next_proto = mask->hdr.next_proto_id &
@@ -1494,6 +1505,8 @@ mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
int
mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
uint64_t item_flags,
+ uint64_t last_item,
+ uint16_t ether_type,
const struct rte_flow_item_ipv6 *acc_mask,
struct rte_flow_error *error)
{
@@ -1519,7 +1532,16 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
uint8_t next_proto = 0xFF;
+ const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
+ MLX5_FLOW_LAYER_OUTER_VLAN |
+ MLX5_FLOW_LAYER_INNER_VLAN);
+ if ((last_item & l2_vlan) && ether_type &&
+ ether_type != RTE_ETHER_TYPE_IPV6)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "IPv6 cannot follow L2/VLAN layer "
+ "which ether type is not IPv6");
if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
if (mask && spec)
next_proto = mask->hdr.proto & spec->hdr.proto;
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 7559810d01..d33d856ad2 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -600,10 +600,14 @@ int mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
struct rte_flow_error *error);
int mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
uint64_t item_flags,
+ uint64_t last_item,
+ uint16_t ether_type,
const struct rte_flow_item_ipv4 *acc_mask,
struct rte_flow_error *error);
int mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
uint64_t item_flags,
+ uint64_t last_item,
+ uint16_t ether_type,
const struct rte_flow_item_ipv6 *acc_mask,
struct rte_flow_error *error);
int mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev,
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 4be059ded5..8e1fa53699 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -3383,6 +3383,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
uint64_t item_flags = 0;
uint64_t last_item = 0;
uint8_t next_protocol = 0xff;
+ uint16_t ether_type = 0;
int actions_n = 0;
const struct rte_flow_item *gre_item = NULL;
struct rte_flow_item_tcp nic_tcp_mask = {
@@ -3419,6 +3420,17 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
+ if (items->mask != NULL && items->spec != NULL) {
+ ether_type =
+ ((const struct rte_flow_item_eth *)
+ items->spec)->type;
+ ether_type &=
+ ((const struct rte_flow_item_eth *)
+ items->mask)->type;
+ ether_type = rte_be_to_cpu_16(ether_type);
+ } else {
+ ether_type = 0;
+ }
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
ret = mlx5_flow_validate_item_vlan(items, item_flags,
@@ -3427,12 +3439,25 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
MLX5_FLOW_LAYER_OUTER_VLAN;
+ if (items->mask != NULL && items->spec != NULL) {
+ ether_type =
+ ((const struct rte_flow_item_vlan *)
+ items->spec)->inner_type;
+ ether_type &=
+ ((const struct rte_flow_item_vlan *)
+ items->mask)->inner_type;
+ ether_type = rte_be_to_cpu_16(ether_type);
+ } else {
+ ether_type = 0;
+ }
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
mlx5_flow_tunnel_ip_check(items, next_protocol,
&item_flags, &tunnel);
ret = mlx5_flow_validate_item_ipv4(items, item_flags,
- NULL, error);
+ last_item,
+ ether_type, NULL,
+ error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
@@ -3455,7 +3480,9 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
mlx5_flow_tunnel_ip_check(items, next_protocol,
&item_flags, &tunnel);
ret = mlx5_flow_validate_item_ipv6(items, item_flags,
- NULL, error);
+ last_item,
+ ether_type, NULL,
+ error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
diff --git a/drivers/net/mlx5/mlx5_flow_verbs.c b/drivers/net/mlx5/mlx5_flow_verbs.c
index fd27f6c3de..147436d7b3 100644
--- a/drivers/net/mlx5/mlx5_flow_verbs.c
+++ b/drivers/net/mlx5/mlx5_flow_verbs.c
@@ -1037,6 +1037,7 @@ flow_verbs_validate(struct rte_eth_dev *dev,
uint64_t item_flags = 0;
uint64_t last_item = 0;
uint8_t next_protocol = 0xff;
+ uint16_t ether_type = 0;
if (items == NULL)
return -1;
@@ -1057,6 +1058,17 @@ flow_verbs_validate(struct rte_eth_dev *dev,
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
+ if (items->mask != NULL && items->spec != NULL) {
+ ether_type =
+ ((const struct rte_flow_item_eth *)
+ items->spec)->type;
+ ether_type &=
+ ((const struct rte_flow_item_eth *)
+ items->mask)->type;
+ ether_type = rte_be_to_cpu_16(ether_type);
+ } else {
+ ether_type = 0;
+ }
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
ret = mlx5_flow_validate_item_vlan(items, item_flags,
@@ -1067,10 +1079,23 @@ flow_verbs_validate(struct rte_eth_dev *dev,
MLX5_FLOW_LAYER_INNER_VLAN) :
(MLX5_FLOW_LAYER_OUTER_L2 |
MLX5_FLOW_LAYER_OUTER_VLAN);
+ if (items->mask != NULL && items->spec != NULL) {
+ ether_type =
+ ((const struct rte_flow_item_vlan *)
+ items->spec)->inner_type;
+ ether_type &=
+ ((const struct rte_flow_item_vlan *)
+ items->mask)->inner_type;
+ ether_type = rte_be_to_cpu_16(ether_type);
+ } else {
+ ether_type = 0;
+ }
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
ret = mlx5_flow_validate_item_ipv4(items, item_flags,
- NULL, error);
+ last_item,
+ ether_type, NULL,
+ error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
@@ -1091,7 +1116,9 @@ flow_verbs_validate(struct rte_eth_dev *dev,
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
ret = mlx5_flow_validate_item_ipv6(items, item_flags,
- NULL, error);
+ last_item,
+ ether_type, NULL,
+ error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
--
2.24.0.rc0.3.g12a4aeaad8
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-dev] [PATCH] net/mlx5: improve flow item IP validation
2019-11-05 7:51 [dpdk-dev] [PATCH] net/mlx5: improve flow item IP validation Xiaoyu Min
@ 2019-11-07 13:49 ` Raslan Darawsheh
0 siblings, 0 replies; 2+ messages in thread
From: Raslan Darawsheh @ 2019-11-07 13:49 UTC (permalink / raw)
To: Jack Min, Matan Azrad, Shahaf Shuler, Slava Ovsiienko
Cc: dev, stable, Ori Kam
Hi,
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Xiaoyu Min
> Sent: Tuesday, November 5, 2019 9:51 AM
> To: Matan Azrad <matan@mellanox.com>; Shahaf Shuler
> <shahafs@mellanox.com>; Slava Ovsiienko <viacheslavo@mellanox.com>
> Cc: dev@dpdk.org; stable@dpdk.org; Ori Kam <orika@mellanox.com>
> Subject: [dpdk-dev] [PATCH] net/mlx5: improve flow item IP validation
>
> Currently PMD doesn't check whether the user specified ethernet type is
> conflicting with the followed IPv4/IPv6 items, which leads to HW refuse
> to create rule, for example:
>
> ... pattern eth type is 0x86dd / ipv4 / end ...
>
> ethernet type is IPv6 but IPv4 is following, this should be validated
> as failure and report corresponding error in detail.
>
> Fixes: 23c1d42c7138 ("net/mlx5: split flow validation to dedicated function")
> Cc: stable@dpdk.org
>
> Signed-off-by: Xiaoyu Min <jackmin@mellanox.com>
> Acked-by: Ori Kam <orika@mellanox.com>
> ---
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
^ permalink raw reply [flat|nested] 2+ messages in thread
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