openvswitch: Allow matching on conntrack mark
Allow matching and setting the ct_mark field. As with ct_state and
ct_zone, these fields are populated when the CT action is executed. To
write to this field, a value and mask can be specified as a nested
attribute under the CT action. This data is stored with the conntrack
entry, and is executed after the lookup occurs for the CT action. The
conntrack entry itself must be committed using the COMMIT flag in the CT
action flags for this change to persist.
Signed-off-by: Justin Pettit <jpettit@nicira.com>
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>
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 4e795b2..b17a4ec 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -281,7 +281,7 @@
/* Whenever adding new OVS_KEY_ FIELDS, we should consider
* updating this function.
*/
- BUILD_BUG_ON(OVS_KEY_ATTR_TUNNEL_INFO != 24);
+ BUILD_BUG_ON(OVS_KEY_ATTR_TUNNEL_INFO != 25);
return nla_total_size(4) /* OVS_KEY_ATTR_PRIORITY */
+ nla_total_size(0) /* OVS_KEY_ATTR_TUNNEL */
@@ -292,6 +292,7 @@
+ nla_total_size(4) /* OVS_KEY_ATTR_RECIRC_ID */
+ nla_total_size(1) /* OVS_KEY_ATTR_CT_STATE */
+ nla_total_size(2) /* OVS_KEY_ATTR_CT_ZONE */
+ + nla_total_size(4) /* OVS_KEY_ATTR_CT_MARK */
+ nla_total_size(12) /* OVS_KEY_ATTR_ETHERNET */
+ nla_total_size(2) /* OVS_KEY_ATTR_ETHERTYPE */
+ nla_total_size(4) /* OVS_KEY_ATTR_VLAN */
@@ -343,6 +344,7 @@
[OVS_KEY_ATTR_MPLS] = { .len = sizeof(struct ovs_key_mpls) },
[OVS_KEY_ATTR_CT_STATE] = { .len = sizeof(u8) },
[OVS_KEY_ATTR_CT_ZONE] = { .len = sizeof(u16) },
+ [OVS_KEY_ATTR_CT_MARK] = { .len = sizeof(u32) },
};
static bool is_all_zero(const u8 *fp, size_t size)
@@ -787,6 +789,13 @@
SW_FLOW_KEY_PUT(match, ct.zone, ct_zone, is_mask);
*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_ZONE);
}
+ if (*attrs & (1 << OVS_KEY_ATTR_CT_MARK) &&
+ ovs_ct_verify(OVS_KEY_ATTR_CT_MARK)) {
+ u32 mark = nla_get_u32(a[OVS_KEY_ATTR_CT_MARK]);
+
+ SW_FLOW_KEY_PUT(match, ct.mark, mark, is_mask);
+ *attrs &= ~(1ULL << OVS_KEY_ATTR_CT_MARK);
+ }
return 0;
}
@@ -1919,6 +1928,7 @@
case OVS_KEY_ATTR_PRIORITY:
case OVS_KEY_ATTR_SKB_MARK:
+ case OVS_KEY_ATTR_CT_MARK:
case OVS_KEY_ATTR_ETHERNET:
break;
