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datapath-protocol: Rename to <linux/openvswitch.h>.
Signed-off-by: Ben Pfaff <blp@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Bug #7559.
This commit is contained in:
Ben Pfaff
449
include/linux/openvswitch.h
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449
include/linux/openvswitch.h
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@@ -0,0 +1,449 @@
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/*
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* Copyright (c) 2009, 2010, 2011 Nicira Networks.
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*
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* This file is offered under your choice of two licenses: Apache 2.0 or GNU
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* GPL 2.0 or later. The permission statements for each of these licenses is
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* given below. You may license your modifications to this file under either
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* of these licenses or both. If you wish to license your modifications under
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* only one of these licenses, delete the permission text for the other
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* license.
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*
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* ----------------------------------------------------------------------
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ----------------------------------------------------------------------
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* ----------------------------------------------------------------------
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*/
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#ifndef _LINUX_OPENVSWITCH_H
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#define _LINUX_OPENVSWITCH_H 1
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#include <linux/types.h>
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/* datapaths. */
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#define OVS_DATAPATH_FAMILY "ovs_datapath"
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#define OVS_DATAPATH_MCGROUP "ovs_datapath"
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enum ovs_datapath_cmd {
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OVS_DP_CMD_UNSPEC,
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OVS_DP_CMD_NEW,
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OVS_DP_CMD_DEL,
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OVS_DP_CMD_GET,
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OVS_DP_CMD_SET
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};
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/**
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* struct ovs_header - header for OVS Generic Netlink messages.
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* @dp_ifindex: ifindex of local port for datapath (0 to make a request not
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* specific to a datapath).
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*
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* Attributes following the header are specific to a particular OVS Generic
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* Netlink family, but all of the OVS families use this header.
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*/
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struct ovs_header {
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int dp_ifindex;
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};
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/**
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* enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
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* @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
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* port". This is the name of the network device whose dp_ifindex is given in
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* the &struct ovs_header. Always present in notifications. Required in
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* %OVS_DP_NEW requests. May be used as an alternative to specifying
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* dp_ifindex in other requests (with a dp_ifindex of 0).
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* @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
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* set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on
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* %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
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* not be sent.
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* @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
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* datapath. Always present in notifications.
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* @OVS_DP_ATTR_IPV4_FRAGS: One of %OVS_DP_FRAG_*. Always present in
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* notifications. May be included in %OVS_DP_NEW or %OVS_DP_SET requests to
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* change the fragment handling policy.
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*
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* These attributes follow the &struct ovs_header within the Generic Netlink
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* payload for %OVS_DP_* commands.
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*/
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enum ovs_datapath_attr {
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OVS_DP_ATTR_UNSPEC,
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OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
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OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
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OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
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OVS_DP_ATTR_IPV4_FRAGS, /* 32-bit enum ovs_datapath_frag */
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__OVS_DP_ATTR_MAX
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};
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#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)
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/**
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* enum ovs_datapath_frag - policy for handling received IPv4 fragments.
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* @OVS_DP_FRAG_ZERO: Treat IP fragments as IP protocol 0 and transport ports
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* zero.
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* @OVS_DP_FRAG_DROP: Drop IP fragments. Do not pass them through the flow
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* table or up to userspace.
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*/
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enum ovs_datapath_frag {
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OVS_DP_FRAG_UNSPEC,
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OVS_DP_FRAG_ZERO, /* Treat IP fragments as transport port 0. */
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OVS_DP_FRAG_DROP /* Drop IP fragments. */
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};
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struct ovs_dp_stats {
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__u64 n_frags; /* Number of dropped IP fragments. */
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__u64 n_hit; /* Number of flow table matches. */
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__u64 n_missed; /* Number of flow table misses. */
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__u64 n_lost; /* Number of misses not sent to userspace. */
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__u64 n_flows; /* Number of flows present */
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};
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struct ovs_vport_stats {
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__u64 rx_packets; /* total packets received */
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__u64 tx_packets; /* total packets transmitted */
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__u64 rx_bytes; /* total bytes received */
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__u64 tx_bytes; /* total bytes transmitted */
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__u64 rx_errors; /* bad packets received */
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__u64 tx_errors; /* packet transmit problems */
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__u64 rx_dropped; /* no space in linux buffers */
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__u64 tx_dropped; /* no space available in linux */
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};
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/* Logical ports. */
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#define OVSP_LOCAL ((__u16)0)
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#define OVS_PACKET_FAMILY "ovs_packet"
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enum ovs_packet_cmd {
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OVS_PACKET_CMD_UNSPEC,
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/* Kernel-to-user notifications. */
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OVS_PACKET_CMD_MISS, /* Flow table miss. */
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OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
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/* User commands. */
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OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
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};
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/**
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* enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
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* @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire
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* packet as received, from the start of the Ethernet header onward. For
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* %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
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* actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
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* the flow key extracted from the packet as originally received.
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* @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key
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* extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
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* userspace to adapt its flow setup strategy by comparing its notion of the
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* flow key against the kernel's.
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* @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used
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* for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
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* @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
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* notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
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* %OVS_USERSPACE_ATTR_USERDATA attribute.
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*
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* These attributes follow the &struct ovs_header within the Generic Netlink
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* payload for %OVS_PACKET_* commands.
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*/
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enum ovs_packet_attr {
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OVS_PACKET_ATTR_UNSPEC,
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OVS_PACKET_ATTR_PACKET, /* Packet data. */
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OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
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OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
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OVS_PACKET_ATTR_USERDATA, /* u64 OVS_ACTION_ATTR_USERSPACE arg. */
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__OVS_PACKET_ATTR_MAX
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};
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#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
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enum ovs_vport_type {
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OVS_VPORT_TYPE_UNSPEC,
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OVS_VPORT_TYPE_NETDEV, /* network device */
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OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
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OVS_VPORT_TYPE_PATCH, /* virtual tunnel connecting two vports */
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OVS_VPORT_TYPE_GRE, /* GRE tunnel */
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OVS_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */
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__OVS_VPORT_TYPE_MAX
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};
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#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
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#define OVS_VPORT_FAMILY "ovs_vport"
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#define OVS_VPORT_MCGROUP "ovs_vport"
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enum ovs_vport_cmd {
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OVS_VPORT_CMD_UNSPEC,
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OVS_VPORT_CMD_NEW,
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OVS_VPORT_CMD_DEL,
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OVS_VPORT_CMD_GET,
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OVS_VPORT_CMD_SET
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};
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/**
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* enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
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* @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
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* @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
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* of vport.
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* @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device
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* this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
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* plus a null terminator.
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* @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that
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* OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
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* this port. A value of zero indicates that upcalls should not be sent.
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* @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
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* packets sent or received through the vport.
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* @OVS_VPORT_ATTR_ADDRESS: A 6-byte Ethernet address for the vport.
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*
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* These attributes follow the &struct ovs_header within the Generic Netlink
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* payload for %OVS_VPORT_* commands.
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*
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* For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
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* %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is
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* optional; if not specified a free port number is automatically selected.
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* Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
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* of vport. %OVS_VPORT_ATTR_STATS and %OVS_VPORT_ATTR_ADDRESS are optional,
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* and other attributes are ignored.
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*
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* For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
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* look up the vport to operate on; otherwise dp_idx from the &struct
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* ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
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*/
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enum ovs_vport_attr {
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OVS_VPORT_ATTR_UNSPEC,
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OVS_VPORT_ATTR_PORT_NO, /* port number within datapath */
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OVS_VPORT_ATTR_TYPE, /* 32-bit OVS_VPORT_TYPE_* constant. */
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OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
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OVS_VPORT_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
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OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
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OVS_VPORT_ATTR_ADDRESS, /* hardware address */
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OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
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__OVS_VPORT_ATTR_MAX
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};
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#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
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/* OVS_VPORT_ATTR_OPTIONS attributes for patch vports. */
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enum {
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OVS_PATCH_ATTR_UNSPEC,
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OVS_PATCH_ATTR_PEER, /* name of peer vport, as a string */
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__OVS_PATCH_ATTR_MAX
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};
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#define OVS_PATCH_ATTR_MAX (__OVS_PATCH_ATTR_MAX - 1)
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/* Flows. */
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#define OVS_FLOW_FAMILY "ovs_flow"
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#define OVS_FLOW_MCGROUP "ovs_flow"
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enum ovs_flow_cmd {
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OVS_FLOW_CMD_UNSPEC,
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OVS_FLOW_CMD_NEW,
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OVS_FLOW_CMD_DEL,
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OVS_FLOW_CMD_GET,
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OVS_FLOW_CMD_SET
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};
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struct ovs_flow_stats {
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__u64 n_packets; /* Number of matched packets. */
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__u64 n_bytes; /* Number of matched bytes. */
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};
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enum ovs_key_attr {
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OVS_KEY_ATTR_UNSPEC,
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OVS_KEY_ATTR_TUN_ID, /* 64-bit tunnel ID */
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OVS_KEY_ATTR_IN_PORT, /* 32-bit OVS dp port number */
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OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */
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OVS_KEY_ATTR_8021Q, /* struct ovs_key_8021q */
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OVS_KEY_ATTR_ETHERTYPE, /* 16-bit Ethernet type */
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OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */
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OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */
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OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */
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OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */
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OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */
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OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */
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OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */
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OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
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__OVS_KEY_ATTR_MAX
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};
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#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
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struct ovs_key_ethernet {
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__u8 eth_src[6];
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__u8 eth_dst[6];
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};
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struct ovs_key_8021q {
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__be16 q_tpid;
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__be16 q_tci;
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};
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struct ovs_key_ipv4 {
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__be32 ipv4_src;
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__be32 ipv4_dst;
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__u8 ipv4_proto;
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__u8 ipv4_tos;
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};
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struct ovs_key_ipv6 {
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__be32 ipv6_src[4];
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__be32 ipv6_dst[4];
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__u8 ipv6_proto;
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__u8 ipv6_tos;
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};
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struct ovs_key_tcp {
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__be16 tcp_src;
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__be16 tcp_dst;
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};
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struct ovs_key_udp {
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__be16 udp_src;
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__be16 udp_dst;
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};
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struct ovs_key_icmp {
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__u8 icmp_type;
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__u8 icmp_code;
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};
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struct ovs_key_icmpv6 {
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__u8 icmpv6_type;
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__u8 icmpv6_code;
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};
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struct ovs_key_arp {
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__be32 arp_sip;
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__be32 arp_tip;
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__be16 arp_op;
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__u8 arp_sha[6];
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__u8 arp_tha[6];
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};
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struct ovs_key_nd {
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__u32 nd_target[4];
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__u8 nd_sll[6];
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__u8 nd_tll[6];
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};
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/**
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* enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
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* @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
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* key. Always present in notifications. Required for all requests (except
|
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* dumps).
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* @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
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* the actions to take for packets that match the key. Always present in
|
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* notifications. Required for %OVS_FLOW_CMD_NEW requests, optional
|
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* @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
|
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* flow. Present in notifications if the stats would be nonzero. Ignored in
|
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* requests.
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* @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
|
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* TCP flags seen on packets in this flow. Only present in notifications for
|
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* TCP flows, and only if it would be nonzero. Ignored in requests.
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* @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
|
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* the system monotonic clock, at which a packet was last processed for this
|
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* flow. Only present in notifications if a packet has been processed for this
|
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* flow. Ignored in requests.
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* @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
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* last-used time, accumulated TCP flags, and statistics for this flow.
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* Otherwise ignored in requests. Never present in notifications.
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||||
*
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||||
* These attributes follow the &struct ovs_header within the Generic Netlink
|
||||
* payload for %OVS_FLOW_* commands.
|
||||
*/
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||||
enum ovs_flow_attr {
|
||||
OVS_FLOW_ATTR_UNSPEC,
|
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OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
|
||||
OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
|
||||
OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
|
||||
OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
|
||||
OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
|
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OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
|
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__OVS_FLOW_ATTR_MAX
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||||
};
|
||||
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||||
#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
|
||||
* @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
|
||||
* @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
|
||||
* %UINT32_MAX samples all packets and intermediate values sample intermediate
|
||||
* fractions of packets.
|
||||
* @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
|
||||
* Actions are passed as nested attributes.
|
||||
*
|
||||
* Executes the specified actions with the given probability on a per-packet
|
||||
* basis.
|
||||
*/
|
||||
enum ovs_sample_attr {
|
||||
OVS_SAMPLE_ATTR_UNSPEC,
|
||||
OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
|
||||
OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
|
||||
__OVS_SAMPLE_ATTR_MAX,
|
||||
};
|
||||
|
||||
#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
|
||||
* @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
|
||||
* message should be sent. Required.
|
||||
* @OVS_USERSPACE_ATTR_USERDATA: If present, its u64 argument is copied to the
|
||||
* %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA,
|
||||
*/
|
||||
enum ovs_userspace_attr {
|
||||
OVS_USERSPACE_ATTR_UNSPEC,
|
||||
OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
|
||||
OVS_USERSPACE_ATTR_USERDATA, /* u64 optional user-specified cookie. */
|
||||
__OVS_USERSPACE_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
|
||||
|
||||
/* Action types. */
|
||||
enum ovs_action_attr {
|
||||
OVS_ACTION_ATTR_UNSPEC,
|
||||
OVS_ACTION_ATTR_OUTPUT, /* Output to switch port. */
|
||||
OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
|
||||
OVS_ACTION_ATTR_PUSH_VLAN, /* Set the 802.1q TCI value. */
|
||||
OVS_ACTION_ATTR_POP_VLAN, /* Strip the 802.1q header. */
|
||||
OVS_ACTION_ATTR_SET_DL_SRC, /* Ethernet source address. */
|
||||
OVS_ACTION_ATTR_SET_DL_DST, /* Ethernet destination address. */
|
||||
OVS_ACTION_ATTR_SET_NW_SRC, /* IPv4 source address. */
|
||||
OVS_ACTION_ATTR_SET_NW_DST, /* IPv4 destination address. */
|
||||
OVS_ACTION_ATTR_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */
|
||||
OVS_ACTION_ATTR_SET_TP_SRC, /* TCP/UDP source port. */
|
||||
OVS_ACTION_ATTR_SET_TP_DST, /* TCP/UDP destination port. */
|
||||
OVS_ACTION_ATTR_SET_TUNNEL, /* Set the encapsulating tunnel ID. */
|
||||
OVS_ACTION_ATTR_SET_PRIORITY, /* Set skb->priority. */
|
||||
OVS_ACTION_ATTR_POP_PRIORITY, /* Restore original skb->priority. */
|
||||
OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
|
||||
__OVS_ACTION_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
|
||||
|
||||
#endif /* _LINUX_OPENVSWITCH_H */
|
||||
Reference in New Issue
Block a user