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* [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6
@ 2020-11-04  4:22 yang_y_yi
  2020-11-05  1:41 ` Hu, Jiayu
  2020-11-05  2:54 ` [dpdk-dev] [PATCH v2] " yang_y_yi
  0 siblings, 2 replies; 6+ messages in thread
From: yang_y_yi @ 2020-11-04  4:22 UTC (permalink / raw)
  To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi

From: Yi Yang <yangyi01@inspur.com>

Current code will think IPv6 packet as IPv4 packet
if inner header is IPv6 and outer header is IPv4,
the result is rte_gro_reassemble() will handle it
as if inner header also is IPv4, so IPv6 can't
be handled correctly as one of unprocess_pkts.

Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
 lib/librte_gro/rte_gro.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index e56bd20..4347267 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -32,32 +32,38 @@
 			NULL};
 
 #define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
-		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP))
+		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
+		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
 
 #define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
-		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP))
+		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
 
 #define IS_IPV4_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
 		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
 		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
 		 RTE_PTYPE_TUNNEL_VXLAN) && \
-		 ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
-		  RTE_PTYPE_INNER_L4_TCP) && \
-		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
-		    (RTE_PTYPE_INNER_L3_IPV4 | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
+		((ptype & RTE_PTYPE_INNER_L4_TCP) == \
+		 RTE_PTYPE_INNER_L4_TCP) && \
+		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
 
 #define IS_IPV4_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
 		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
 		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
 		 RTE_PTYPE_TUNNEL_VXLAN) && \
-		 ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
-		  RTE_PTYPE_INNER_L4_UDP) && \
-		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
-		    (RTE_PTYPE_INNER_L3_IPV4 | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
+		((ptype & RTE_PTYPE_INNER_L4_UDP) == \
+		 RTE_PTYPE_INNER_L4_UDP) && \
+		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
 
 /*
  * GRO context structure. It keeps the table structures, which are
-- 
1.8.3.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6
  2020-11-04  4:22 [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6 yang_y_yi
@ 2020-11-05  1:41 ` Hu, Jiayu
  2020-11-05  1:48   ` yang_y_yi
  2020-11-05  2:54 ` [dpdk-dev] [PATCH v2] " yang_y_yi
  1 sibling, 1 reply; 6+ messages in thread
From: Hu, Jiayu @ 2020-11-05  1:41 UTC (permalink / raw)
  To: yang_y_yi, dev; +Cc: Ananyev, Konstantin, thomas, yangyi01

Hi Yi,

> -----Original Message-----
> From: yang_y_yi@163.com <yang_y_yi@163.com>
> Sent: Wednesday, November 4, 2020 12:23 PM
> To: dev@dpdk.org
> Cc: Hu, Jiayu <jiayu.hu@intel.com>; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>; thomas@monjalon.net;
> yangyi01@inspur.com; yang_y_yi@163.com
> Subject: [PATCH] gro: fix an error when packet is IPv6
> 
> From: Yi Yang <yangyi01@inspur.com>
> 
> Current code will think IPv6 packet as IPv4 packet
> if inner header is IPv6 and outer header is IPv4,
> the result is rte_gro_reassemble() will handle it
> as if inner header also is IPv4, so IPv6 can't
> be handled correctly as one of unprocess_pkts.

Good catch. If the input is a VxLAN pkt whose inner
L3 is IPv6, inner L4 is TCP or UDP, and outer L3 is IPv4,
the value of IS_IPV4_VXLAN_TCP4/UDP4_PKT is true.
Thus, GRO will mistakenly reassemble it.

But for  IS_IPV4_UDP/TCP_PKT, I think it's better to use
"RTE_ETH_IS_TUNNEL_PKT(ptype) == 0", rather than
"((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0".

BTW, the commit log is not easy to understand what
bug the patch tries to fix.

Thanks,
Jiayu

> 
> Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
> Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
> Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
> Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
> Signed-off-by: Yi Yang <yangyi01@inspur.com>
> ---
>  lib/librte_gro/rte_gro.c | 34 ++++++++++++++++++++--------------
>  1 file changed, 20 insertions(+), 14 deletions(-)
> 
> diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
> index e56bd20..4347267 100644
> --- a/lib/librte_gro/rte_gro.c
> +++ b/lib/librte_gro/rte_gro.c
> @@ -32,32 +32,38 @@
>  			NULL};
> 
>  #define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
> -		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP))
> +		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
> +		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
> 
>  #define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
> -		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP))
> +		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
> +		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
> 
>  #define IS_IPV4_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
> && \
>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
> -		 ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
> -		  RTE_PTYPE_INNER_L4_TCP) && \
> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
> +		((ptype & RTE_PTYPE_INNER_L4_TCP) == \
> +		 RTE_PTYPE_INNER_L4_TCP) && \
> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
> 
>  #define IS_IPV4_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
> && \
>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
> -		 ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
> -		  RTE_PTYPE_INNER_L4_UDP) && \
> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
> +		((ptype & RTE_PTYPE_INNER_L4_UDP) == \
> +		 RTE_PTYPE_INNER_L4_UDP) && \
> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
> 
>  /*
>   * GRO context structure. It keeps the table structures, which are
> --
> 1.8.3.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6
  2020-11-05  1:41 ` Hu, Jiayu
@ 2020-11-05  1:48   ` yang_y_yi
  0 siblings, 0 replies; 6+ messages in thread
From: yang_y_yi @ 2020-11-05  1:48 UTC (permalink / raw)
  To: Hu, Jiayu; +Cc: dev, Ananyev, Konstantin, thomas, yangyi01

At 2020-11-05 09:41:13, "Hu, Jiayu" <jiayu.hu@intel.com> wrote:
>Hi Yi,
>
>> -----Original Message-----
>> From: yang_y_yi@163.com <yang_y_yi@163.com>
>> Sent: Wednesday, November 4, 2020 12:23 PM
>> To: dev@dpdk.org
>> Cc: Hu, Jiayu <jiayu.hu@intel.com>; Ananyev, Konstantin
>> <konstantin.ananyev@intel.com>; thomas@monjalon.net;
>> yangyi01@inspur.com; yang_y_yi@163.com
>> Subject: [PATCH] gro: fix an error when packet is IPv6
>> 
>> From: Yi Yang <yangyi01@inspur.com>
>> 
>> Current code will think IPv6 packet as IPv4 packet
>> if inner header is IPv6 and outer header is IPv4,
>> the result is rte_gro_reassemble() will handle it
>> as if inner header also is IPv4, so IPv6 can't
>> be handled correctly as one of unprocess_pkts.
>
>Good catch. If the input is a VxLAN pkt whose inner
>L3 is IPv6, inner L4 is TCP or UDP, and outer L3 is IPv4,
>the value of IS_IPV4_VXLAN_TCP4/UDP4_PKT is true.
>Thus, GRO will mistakenly reassemble it.
>
>But for  IS_IPV4_UDP/TCP_PKT, I think it's better to use
>"RTE_ETH_IS_TUNNEL_PKT(ptype) == 0", rather than
>"((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0".
>
>BTW, the commit log is not easy to understand what
>bug the patch tries to fix.
>
>Thanks,
>Jiayu

Thanks Jiayu, I'll change commit log and vxlan tunnel check condition per you comments.

>
>> 
>> Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
>> Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
>> Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
>> Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
>> Signed-off-by: Yi Yang <yangyi01@inspur.com>
>> ---
>>  lib/librte_gro/rte_gro.c | 34 ++++++++++++++++++++--------------
>>  1 file changed, 20 insertions(+), 14 deletions(-)
>> 
>> diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
>> index e56bd20..4347267 100644
>> --- a/lib/librte_gro/rte_gro.c
>> +++ b/lib/librte_gro/rte_gro.c
>> @@ -32,32 +32,38 @@
>>  			NULL};
>> 
>>  #define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
>> -		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP))
>> +		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
>> +		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
>> 
>>  #define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
>> -		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP))
>> +		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>> +		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == 0))
>> 
>>  #define IS_IPV4_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
>> && \
>>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
>> -		 ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
>> -		  RTE_PTYPE_INNER_L4_TCP) && \
>> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
>> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
>> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
>> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
>> +		((ptype & RTE_PTYPE_INNER_L4_TCP) == \
>> +		 RTE_PTYPE_INNER_L4_TCP) && \
>> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4) || \
>> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
>> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
>> 
>>  #define IS_IPV4_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
>> && \
>>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
>> -		 ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
>> -		  RTE_PTYPE_INNER_L4_UDP) && \
>> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
>> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
>> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
>> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
>> +		((ptype & RTE_PTYPE_INNER_L4_UDP) == \
>> +		 RTE_PTYPE_INNER_L4_UDP) && \
>> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4) || \
>> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
>> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
>> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
>> 
>>  /*
>>   * GRO context structure. It keeps the table structures, which are
>> --
>> 1.8.3.1



^ permalink raw reply	[flat|nested] 6+ messages in thread

* [dpdk-dev] [PATCH v2] gro: fix an error when packet is IPv6
  2020-11-04  4:22 [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6 yang_y_yi
  2020-11-05  1:41 ` Hu, Jiayu
@ 2020-11-05  2:54 ` yang_y_yi
  2020-11-05  6:08   ` Hu, Jiayu
  1 sibling, 1 reply; 6+ messages in thread
From: yang_y_yi @ 2020-11-05  2:54 UTC (permalink / raw)
  To: dev; +Cc: jiayu.hu, konstantin.ananyev, thomas, yangyi01, yang_y_yi

From: Yi Yang <yangyi01@inspur.com>

For VxLAN packets,  GRO will mistakenly reassemble them
if inner L3 is IPv6, inner L4 is TCP or UDP, and outer L3
is IPv4 because the value of IS_IPV4_VXLAN_TCP4/UDP4_PKT
is true for them.

This fix makes sure IS_IPV4_TCP_PKT, IS_IPV4_UDP_PKT,
IS_IPV4_VXLAN_TCP4_PKT and IS_IPV4_VXLAN_UDP4_PKT can make
decision precisely.

Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
Signed-off-by: Yi Yang <yangyi01@inspur.com>
---
 lib/librte_gro/rte_gro.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
index e56bd20..8ca4da6 100644
--- a/lib/librte_gro/rte_gro.c
+++ b/lib/librte_gro/rte_gro.c
@@ -32,32 +32,38 @@
 			NULL};
 
 #define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
-		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP))
+		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
+		(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
 
 #define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
-		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP))
+		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
+		(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
 
 #define IS_IPV4_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
 		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
 		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
 		 RTE_PTYPE_TUNNEL_VXLAN) && \
-		 ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
-		  RTE_PTYPE_INNER_L4_TCP) && \
-		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
-		    (RTE_PTYPE_INNER_L3_IPV4 | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
+		((ptype & RTE_PTYPE_INNER_L4_TCP) == \
+		 RTE_PTYPE_INNER_L4_TCP) && \
+		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
 
 #define IS_IPV4_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
 		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
 		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
 		 RTE_PTYPE_TUNNEL_VXLAN) && \
-		 ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
-		  RTE_PTYPE_INNER_L4_UDP) && \
-		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
-		    (RTE_PTYPE_INNER_L3_IPV4 | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
-		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
+		((ptype & RTE_PTYPE_INNER_L4_UDP) == \
+		 RTE_PTYPE_INNER_L4_UDP) && \
+		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
+		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
+		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
 
 /*
  * GRO context structure. It keeps the table structures, which are
-- 
1.8.3.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [dpdk-dev] [PATCH v2] gro: fix an error when packet is IPv6
  2020-11-05  2:54 ` [dpdk-dev] [PATCH v2] " yang_y_yi
@ 2020-11-05  6:08   ` Hu, Jiayu
  2020-11-14  8:47     ` Thomas Monjalon
  0 siblings, 1 reply; 6+ messages in thread
From: Hu, Jiayu @ 2020-11-05  6:08 UTC (permalink / raw)
  To: yang_y_yi, dev; +Cc: Ananyev, Konstantin, thomas, yangyi01

Acked-by: Jiayu Hu <jiayu.hu@intel.com>

> -----Original Message-----
> From: yang_y_yi@163.com <yang_y_yi@163.com>
> Sent: Thursday, November 5, 2020 10:55 AM
> To: dev@dpdk.org
> Cc: Hu, Jiayu <jiayu.hu@intel.com>; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>; thomas@monjalon.net;
> yangyi01@inspur.com; yang_y_yi@163.com
> Subject: [PATCH v2] gro: fix an error when packet is IPv6
> 
> From: Yi Yang <yangyi01@inspur.com>
> 
> For VxLAN packets,  GRO will mistakenly reassemble them
> if inner L3 is IPv6, inner L4 is TCP or UDP, and outer L3
> is IPv4 because the value of IS_IPV4_VXLAN_TCP4/UDP4_PKT
> is true for them.
> 
> This fix makes sure IS_IPV4_TCP_PKT, IS_IPV4_UDP_PKT,
> IS_IPV4_VXLAN_TCP4_PKT and IS_IPV4_VXLAN_UDP4_PKT can make
> decision precisely.
> 
> Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
> Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
> Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
> Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
> Signed-off-by: Yi Yang <yangyi01@inspur.com>
> ---
>  lib/librte_gro/rte_gro.c | 34 ++++++++++++++++++++--------------
>  1 file changed, 20 insertions(+), 14 deletions(-)
> 
> diff --git a/lib/librte_gro/rte_gro.c b/lib/librte_gro/rte_gro.c
> index e56bd20..8ca4da6 100644
> --- a/lib/librte_gro/rte_gro.c
> +++ b/lib/librte_gro/rte_gro.c
> @@ -32,32 +32,38 @@
>  			NULL};
> 
>  #define IS_IPV4_TCP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
> -		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP))
> +		((ptype & RTE_PTYPE_L4_TCP) == RTE_PTYPE_L4_TCP) && \
> +		(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
> 
>  #define IS_IPV4_UDP_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype) && \
> -		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP))
> +		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
> +		(RTE_ETH_IS_TUNNEL_PKT(ptype) == 0))
> 
>  #define IS_IPV4_VXLAN_TCP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
> && \
>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
> -		 ((ptype & RTE_PTYPE_INNER_L4_TCP) == \
> -		  RTE_PTYPE_INNER_L4_TCP) && \
> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
> +		((ptype & RTE_PTYPE_INNER_L4_TCP) == \
> +		 RTE_PTYPE_INNER_L4_TCP) && \
> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
> 
>  #define IS_IPV4_VXLAN_UDP4_PKT(ptype) (RTE_ETH_IS_IPV4_HDR(ptype)
> && \
>  		((ptype & RTE_PTYPE_L4_UDP) == RTE_PTYPE_L4_UDP) && \
>  		((ptype & RTE_PTYPE_TUNNEL_VXLAN) == \
>  		 RTE_PTYPE_TUNNEL_VXLAN) && \
> -		 ((ptype & RTE_PTYPE_INNER_L4_UDP) == \
> -		  RTE_PTYPE_INNER_L4_UDP) && \
> -		  (((ptype & RTE_PTYPE_INNER_L3_MASK) & \
> -		    (RTE_PTYPE_INNER_L3_IPV4 | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT | \
> -		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)) != 0))
> +		((ptype & RTE_PTYPE_INNER_L4_UDP) == \
> +		 RTE_PTYPE_INNER_L4_UDP) && \
> +		(((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT) || \
> +		 ((ptype & RTE_PTYPE_INNER_L3_MASK) == \
> +		  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN)))
> 
>  /*
>   * GRO context structure. It keeps the table structures, which are
> --
> 1.8.3.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [dpdk-dev] [PATCH v2] gro: fix an error when packet is IPv6
  2020-11-05  6:08   ` Hu, Jiayu
@ 2020-11-14  8:47     ` Thomas Monjalon
  0 siblings, 0 replies; 6+ messages in thread
From: Thomas Monjalon @ 2020-11-14  8:47 UTC (permalink / raw)
  To: yang_y_yi; +Cc: dev, Ananyev, Konstantin, yangyi01, Hu, Jiayu, stable

> > For VxLAN packets,  GRO will mistakenly reassemble them
> > if inner L3 is IPv6, inner L4 is TCP or UDP, and outer L3
> > is IPv4 because the value of IS_IPV4_VXLAN_TCP4/UDP4_PKT
> > is true for them.
> > 
> > This fix makes sure IS_IPV4_TCP_PKT, IS_IPV4_UDP_PKT,
> > IS_IPV4_VXLAN_TCP4_PKT and IS_IPV4_VXLAN_UDP4_PKT can make
> > decision precisely.
> > 
> > Fixes: e2d811063673 ("gro: support VXLAN UDP/IPv4")
> > Fixes: 1ca5e6740852 ("gro: support UDP/IPv4")
> > Fixes: 9e0b9d2ec0f4 ("gro: support VxLAN GRO")
> > Fixes: 0d2cbe59b719 ("lib/gro: support TCP/IPv4")
> > Signed-off-by: Yi Yang <yangyi01@inspur.com>
> Acked-by: Jiayu Hu <jiayu.hu@intel.com>

Added missing Cc: stable@dpdk.org

Tried to be more precise in the title:
"gro: fix packet type detection with IPv6 tunnel"

Applied, thanks



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2020-11-14  8:47 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-04  4:22 [dpdk-dev] [PATCH] gro: fix an error when packet is IPv6 yang_y_yi
2020-11-05  1:41 ` Hu, Jiayu
2020-11-05  1:48   ` yang_y_yi
2020-11-05  2:54 ` [dpdk-dev] [PATCH v2] " yang_y_yi
2020-11-05  6:08   ` Hu, Jiayu
2020-11-14  8:47     ` Thomas Monjalon

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