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gro: fix packet type detection with IPv6 tunnel

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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: e2d8110636 ("gro: support VXLAN UDP/IPv4")
Fixes: 1ca5e67408 ("gro: support UDP/IPv4")
Fixes: 9e0b9d2ec0 ("gro: support VxLAN GRO")
Fixes: 0d2cbe59b7 ("lib/gro: support TCP/IPv4")
Cc: stable@dpdk.org

Signed-off-by: Yi Yang <yangyi01@inspur.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
This commit is contained in:
Yi Yang 2020-11-05 10:54:44 +08:00 committed by Thomas Monjalon
parent eb63ec0e56
commit b605df71be
1 changed files with 20 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
lib/librte_gro/rte_gro.c
View File

@ -32,32 +32,38 @@ static gro_tbl_pkt_count_fn tbl_pkt_count_fn[RTE_GRO_TYPE_MAX_NUM] = {
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