* %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the
* output port is actually a tunnel port. Contains the output tunnel key
* extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
+ * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and
+ * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
+ * size.
+ *
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_PACKET_* commands.
*/
OVS_PACKET_ATTR_UNUSED2,
OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe,
error logging should be suppressed. */
+ OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */
__OVS_PACKET_ATTR_MAX
};
OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */
- OVS_VPORT_TYPE_GRE64 = 104, /* GRE tunnel with 64-bit keys */
OVS_VPORT_TYPE_LISP = 105, /* LISP tunnel */
OVS_VPORT_TYPE_STT = 106, /* STT tunnel */
__OVS_VPORT_TYPE_MAX
OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls.
* The implementation may restrict
* the accepted length of the array. */
+ OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */
+ OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */
+ OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */
+ OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking labels */
#ifdef __KERNEL__
/* Only used within kernel data path. */
__u8 nd_tll[ETH_ALEN];
};
+#define OVS_CT_LABELS_LEN 16
+struct ovs_key_ct_labels {
+ __u8 ct_labels[OVS_CT_LABELS_LEN];
+};
+
+/* OVS_KEY_ATTR_CT_STATE flags */
+#define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */
+#define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */
+#define OVS_CS_F_RELATED 0x04 /* Related to an established
+ * connection. */
+#define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */
+#define OVS_CS_F_INVALID 0x10 /* Could not track connection. */
+#define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */
+#define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was
+ mangled by NAT. */
+#define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port
+ was mangled by NAT. */
+
+#define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
+
/**
* enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
* @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
};
#endif
+/**
+ * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
+ * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
+ * table. This allows future packets for the same connection to be identified
+ * as 'established' or 'related'.
+ * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
+ * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
+ * mask, the corresponding bit in the value is copied to the connection
+ * tracking mark field in the connection.
+ * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
+ * mask. For each bit set in the mask, the corresponding bit in the value is
+ * copied to the connection tracking label field in the connection.
+ * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
+ */
+enum ovs_ct_attr {
+ OVS_CT_ATTR_UNSPEC,
+ OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */
+ OVS_CT_ATTR_ZONE, /* u16 zone id. */
+ OVS_CT_ATTR_MARK, /* mark to associate with this connection. */
+ OVS_CT_ATTR_LABELS, /* label to associate with this connection. */
+ OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of
+ related connections. */
+ OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */
+ __OVS_CT_ATTR_MAX
+};
+
+#define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
+
+/**
+ * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT.
+ *
+ * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port).
+ * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination
+ * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be
+ * specified. Effective only for packets for ct_state NEW connections.
+ * Committed connections are mangled by the NAT action according to the
+ * committed NAT type regardless of the flags specified. As a corollary, a NAT
+ * action without a NAT type flag will only mangle packets of committed
+ * connections. The following NAT attributes only apply for NEW connections,
+ * and they may be included only when the CT action has the @OVS_CT_ATTR_COMMIT
+ * flag and either @OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST is also included.
+ * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr
+ * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr
+ * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port)
+ * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port)
+ * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots
+ * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5)
+ * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping
+ */
+enum ovs_nat_attr {
+ OVS_NAT_ATTR_UNSPEC,
+ OVS_NAT_ATTR_SRC,
+ OVS_NAT_ATTR_DST,
+ OVS_NAT_ATTR_IP_MIN,
+ OVS_NAT_ATTR_IP_MAX,
+ OVS_NAT_ATTR_PROTO_MIN,
+ OVS_NAT_ATTR_PROTO_MAX,
+ OVS_NAT_ATTR_PERSISTENT,
+ OVS_NAT_ATTR_PROTO_HASH,
+ OVS_NAT_ATTR_PROTO_RANDOM,
+ __OVS_NAT_ATTR_MAX,
+};
+
+#define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1)
+
/**
* enum ovs_action_attr - Action types.
*
* indicate the new packet contents. This could potentially still be
* %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there
* is no MPLS label stack, as determined by ethertype, no action is taken.
+ * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related
+ * entries in the flow key.
*
* Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
* fields within a header are modifiable, e.g. the IPv4 protocol and fragment
* data immediately followed by a mask.
* The data must be zero for the unmasked
* bits. */
+ OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */
#ifndef __KERNEL__
OVS_ACTION_ATTR_TUNNEL_PUSH, /* struct ovs_action_push_tnl*/
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