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net: openvswitch: IPv6: Add IPv6 extension header support

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

Signed-off-by: Toms Atteka <cpp.code.lv@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Toms Atteka 2022-02-23 16:54:09 -08:00 • committed by David S. Miller
parent a46e3d5eb7
commit 28a3f06017
4 changed files with 184 additions and 2 deletions
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6
include/uapi/linux/openvswitch.h
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@ -351,6 +351,7 @@ enum ovs_key_attr {
OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */
OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */
OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */
OVS_KEY_ATTR_IPV6_EXTHDRS, /* struct ovs_key_ipv6_exthdr */
#ifdef __KERNEL__
OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */
@ -430,6 +431,11 @@ struct ovs_key_ipv6 {
__u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
};
/* separate structure to support backward compatibility with older user space */
struct ovs_key_ipv6_exthdrs {
__u16 hdrs;
};
struct ovs_key_tcp {
__be16 tcp_src;
__be16 tcp_dst;