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openvswitch: Allow matching on conntrack label

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Allow matching and setting the ct_label field. As with ct_mark, this is
populated by executing the CT action. The label field may be modified by
specifying a label and mask nested under the CT action. It is stored as
metadata attached to the connection. Label modification occurs after
lookup, and will only persist when the conntrack entry is committed by
providing the COMMIT flag to the CT action. Labels are currently fixed
to 128 bits in size.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Stringer 2015-08-26 11:31:52 -07:00 • committed by David S. Miller
parent 86ca02e774
commit c2ac667358
10 changed files with 199 additions and 34 deletions
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4
net/openvswitch/flow.c
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@ -715,7 +715,7 @@ int ovs_flow_key_extract(const struct ip_tunnel_info *tun_info,
return key_extract(skb, key);
}
int ovs_flow_key_extract_userspace(const struct nlattr *attr,
int ovs_flow_key_extract_userspace(struct net *net, const struct nlattr *attr,
struct sk_buff *skb,
struct sw_flow_key *key, bool log)
{
@ -724,7 +724,7 @@ int ovs_flow_key_extract_userspace(const struct nlattr *attr,
memset(key, 0, OVS_SW_FLOW_KEY_METADATA_SIZE);
/* Extract metadata from netlink attributes. */
err = ovs_nla_get_flow_metadata(attr, key, log);
err = ovs_nla_get_flow_metadata(net, attr, key, log);
if (err)
return err;