Re: [PATCH net-next v2] net: openvswitch: IPv6: Add IPv6 extension header support

IPv6 extension headers carry optional internet layer information
and are placed between the fixed header and the upper-layer
protocol header.

This change adds a new OpenFlow field OFPXMT_OFB_IPV6_EXTHDR and
packets can be filtered using ipv6_ext flag.

Tested-at: https://github.com/TomCodeLV/ovs/actions/runs/504185214
Signed-off-by: Toms Atteka <redacted>
---
 include/uapi/linux/openvswitch.h |   1 +
 net/openvswitch/flow.c           | 141 +++++++++++++++++++++++++++++++
 net/openvswitch/flow.h           |  14 +++
 net/openvswitch/flow_netlink.c   |   5 +-
 4 files changed, 160 insertions(+), 1 deletion(-)


base-commit: 5d869070569a23aa909c6e7e9d010fc438a492ef

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 8d16744edc31..a19812b6631a 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h

@@ -420,6 +420,7 @@ struct ovs_key_ipv6 {
 	__u8   ipv6_tclass;
 	__u8   ipv6_hlimit;
 	__u8   ipv6_frag;	/* One of OVS_FRAG_TYPE_*. */
+	__u16  ipv6_exthdr;
 };