FM / linux

/usr/include/linux

Name	Size	Mode	Actions
android/	-	0755	rm
byteorder/	-	0755	rm
caif/	-	0755	rm
can/	-	0755	rm
cifs/	-	0755	rm
dvb/	-	0755	rm
genwqe/	-	0755	rm
hdlc/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
isdn/	-	0755	rm
misc/	-	0755	rm
mmc/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
nfsd/	-	0755	rm
raid/	-	0755	rm
sched/	-	0755	rm
spi/	-	0755	rm
sunrpc/	-	0755	rm
surface_aggregator/	-	0755	rm
tc_act/	-	0755	rm
tc_ematch/	-	0755	rm
usb/	-	0755	rm
a.out.h	6892	0644	edit dl rm
acct.h	3913	0644	edit dl rm
acrn.h	16686	0644	edit dl rm
adb.h	1140	0644	edit dl rm
adfs_fs.h	993	0644	edit dl rm
affs_hardblocks.h	1578	0644	edit dl rm
agpgart.h	3940	0644	edit dl rm
aio_abi.h	3398	0644	edit dl rm
am437x-vpfe.h	3681	0644	edit dl rm
apm_bios.h	3683	0644	edit dl rm
arcfb.h	213	0644	edit dl rm
arm_sdei.h	2751	0644	edit dl rm
aspeed-lpc-ctrl.h	1780	0644	edit dl rm
aspeed-p2a-ctrl.h	1906	0644	edit dl rm
atalk.h	1023	0644	edit dl rm
atm.h	7888	0644	edit dl rm
atmapi.h	952	0644	edit dl rm
atmarp.h	1296	0644	edit dl rm
atmbr2684.h	3271	0644	edit dl rm
atmclip.h	576	0644	edit dl rm
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atmlec.h	2381	0644	edit dl rm
atmmpc.h	4226	0644	edit dl rm
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atmsvc.h	1853	0644	edit dl rm
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atm_he.h	406	0644	edit dl rm
atm_idt77105.h	955	0644	edit dl rm
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atm_tcp.h	1622	0644	edit dl rm
atm_zatm.h	1540	0644	edit dl rm
audit.h	21570	0644	edit dl rm
auto_dev-ioctl.h	4986	0644	edit dl rm
auto_fs.h	6428	0644	edit dl rm
auto_fs4.h	451	0644	edit dl rm
auxvec.h	1597	0644	edit dl rm
ax25.h	2824	0644	edit dl rm
batadv_packet.h	20345	0644	edit dl rm
batman_adv.h	16887	0644	edit dl rm
baycom.h	883	0644	edit dl rm
bcm933xx_hcs.h	419	0644	edit dl rm
bfs_fs.h	1905	0644	edit dl rm
binfmts.h	776	0644	edit dl rm
bits.h	447	0644	edit dl rm
blkpg.h	904	0644	edit dl rm
blktrace_api.h	4701	0644	edit dl rm
blkzoned.h	6493	0644	edit dl rm
bpf.h	278639	0644	edit dl rm
bpfilter.h	465	0644	edit dl rm
bpf_common.h	1367	0644	edit dl rm
bpf_perf_event.h	529	0644	edit dl rm
bpqether.h	981	0644	edit dl rm
bsg.h	2494	0644	edit dl rm
bt-bmc.h	572	0644	edit dl rm
btf.h	5591	0644	edit dl rm
btrfs.h	30570	0644	edit dl rm
btrfs_tree.h	25829	0644	edit dl rm
cachefiles.h	1650	0644	edit dl rm
can.h	11496	0644	edit dl rm
capability.h	13491	0644	edit dl rm
capi.h	3124	0644	edit dl rm
cciss_defs.h	3281	0644	edit dl rm
cciss_ioctl.h	2761	0644	edit dl rm
ccs.h	767	0644	edit dl rm
cdrom.h	29561	0644	edit dl rm
cec-funcs.h	54419	0644	edit dl rm
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cfm_bridge.h	1456	0644	edit dl rm
cgroupstats.h	2219	0644	edit dl rm
chio.h	5282	0644	edit dl rm
close_range.h	377	0644	edit dl rm
cm4000_cs.h	1806	0644	edit dl rm
cn_proc.h	4149	0644	edit dl rm
coda.h	18216	0644	edit dl rm
coff.h	12549	0644	edit dl rm
connector.h	2253	0644	edit dl rm
const.h	987	0644	edit dl rm
coresight-stm.h	747	0644	edit dl rm
cramfs_fs.h	3555	0644	edit dl rm
cryptouser.h	5321	0644	edit dl rm
cuda.h	905	0644	edit dl rm
cxl_mem.h	7915	0644	edit dl rm
cycx_cfm.h	2990	0644	edit dl rm
dcbnl.h	25292	0644	edit dl rm
dccp.h	6436	0644	edit dl rm
devlink.h	23316	0644	edit dl rm
dlm.h	2553	0644	edit dl rm
dlmconstants.h	5080	0644	edit dl rm
dlm_device.h	2543	0644	edit dl rm
dlm_netlink.h	1159	0644	edit dl rm
dlm_plock.h	894	0644	edit dl rm
dm-ioctl.h	11753	0644	edit dl rm
dm-log-userspace.h	15191	0644	edit dl rm
dma-buf.h	5247	0644	edit dl rm
dma-heap.h	1394	0644	edit dl rm
dn.h	4642	0644	edit dl rm
dns_resolver.h	3949	0644	edit dl rm
dpll.h	8697	0644	edit dl rm
dqblk_xfs.h	9388	0644	edit dl rm
edd.h	5604	0644	edit dl rm
efs_fs_sb.h	2227	0644	edit dl rm
elf-em.h	2627	0644	edit dl rm
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elf.h	15042	0644	edit dl rm
errno.h	23	0644	edit dl rm
errqueue.h	1983	0644	edit dl rm
erspan.h	1059	0644	edit dl rm
ethtool.h	103855	0644	edit dl rm
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eventfd.h	264	0644	edit dl rm
eventpoll.h	2913	0644	edit dl rm
f2fs.h	3301	0644	edit dl rm
fadvise.h	842	0644	edit dl rm
falloc.h	3643	0644	edit dl rm
fanotify.h	7886	0644	edit dl rm
fb.h	16477	0644	edit dl rm
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fd.h	12117	0644	edit dl rm
fdreg.h	5364	0644	edit dl rm
fib_rules.h	2036	0644	edit dl rm
fiemap.h	2775	0644	edit dl rm
filter.h	2216	0644	edit dl rm
firewire-cdev.h	44240	0644	edit dl rm
firewire-constants.h	3231	0644	edit dl rm
fou.h	819	0644	edit dl rm
fpga-dfl.h	8728	0644	edit dl rm
fs.h	13186	0644	edit dl rm
fscrypt.h	6565	0644	edit dl rm
fsi.h	2255	0644	edit dl rm
fsl_hypervisor.h	7301	0644	edit dl rm
fsl_mc.h	734	0644	edit dl rm
fsmap.h	4393	0644	edit dl rm
fsverity.h	3185	0644	edit dl rm
fuse.h	25968	0644	edit dl rm
futex.h	6127	0644	edit dl rm
gameport.h	897	0644	edit dl rm
genetlink.h	2238	0644	edit dl rm
gen_stats.h	1526	0644	edit dl rm
gfs2_ondisk.h	14773	0644	edit dl rm
gpio.h	19922	0644	edit dl rm
gsmmux.h	4509	0644	edit dl rm
gtp.h	734	0644	edit dl rm
handshake.h	1646	0644	edit dl rm
hash_info.h	971	0644	edit dl rm
hdlc.h	637	0644	edit dl rm
hdlcdrv.h	2908	0644	edit dl rm
hdreg.h	22703	0644	edit dl rm
hid.h	2086	0644	edit dl rm
hiddev.h	6345	0644	edit dl rm
hidraw.h	1993	0644	edit dl rm
hpet.h	743	0644	edit dl rm
hsr_netlink.h	1101	0644	edit dl rm
hw_breakpoint.h	742	0644	edit dl rm
hyperv.h	11152	0644	edit dl rm
i2c-dev.h	1875	0644	edit dl rm
i2c.h	6890	0644	edit dl rm
i2o-dev.h	11555	0644	edit dl rm
i8k.h	1528	0644	edit dl rm
icmp.h	4785	0644	edit dl rm
icmpv6.h	4300	0644	edit dl rm
idxd.h	9328	0644	edit dl rm
if.h	10925	0644	edit dl rm
ife.h	351	0644	edit dl rm
if_addr.h	1886	0644	edit dl rm
if_addrlabel.h	721	0644	edit dl rm
if_alg.h	1566	0644	edit dl rm
if_arcnet.h	3717	0644	edit dl rm
if_arp.h	6565	0644	edit dl rm
if_bonding.h	5145	0644	edit dl rm
if_bridge.h	20755	0644	edit dl rm
if_cablemodem.h	986	0644	edit dl rm
if_eql.h	1349	0644	edit dl rm
if_ether.h	8410	0644	edit dl rm
if_fc.h	1738	0644	edit dl rm
if_fddi.h	4369	0644	edit dl rm
if_hippi.h	4235	0644	edit dl rm
if_infiniband.h	1245	0644	edit dl rm
if_link.h	54131	0644	edit dl rm
if_ltalk.h	210	0644	edit dl rm
if_macsec.h	6503	0644	edit dl rm
if_packet.h	8183	0644	edit dl rm
if_phonet.h	424	0644	edit dl rm
if_plip.h	660	0644	edit dl rm
if_ppp.h	29	0644	edit dl rm
if_pppol2tp.h	3303	0644	edit dl rm
if_pppox.h	4879	0644	edit dl rm
if_slip.h	872	0644	edit dl rm
if_team.h	2600	0644	edit dl rm
if_tun.h	4098	0644	edit dl rm
if_tunnel.h	5488	0644	edit dl rm
if_vlan.h	1831	0644	edit dl rm
if_x25.h	881	0644	edit dl rm
if_xdp.h	5414	0644	edit dl rm
igmp.h	3064	0644	edit dl rm
ila.h	1246	0644	edit dl rm
in.h	10486	0644	edit dl rm
in6.h	7537	0644	edit dl rm
inet_diag.h	5017	0644	edit dl rm
inotify.h	3292	0644	edit dl rm
input-event-codes.h	30203	0644	edit dl rm
input.h	16217	0644	edit dl rm
in_route.h	936	0644	edit dl rm
ioctl.h	163	0644	edit dl rm
iommufd.h	37327	0644	edit dl rm
ioprio.h	4175	0644	edit dl rm
io_uring.h	20887	0644	edit dl rm
ip.h	4813	0644	edit dl rm
ip6_tunnel.h	1953	0644	edit dl rm
ipc.h	2101	0644	edit dl rm
ipmi.h	15442	0644	edit dl rm
ipmi_bmc.h	488	0644	edit dl rm
ipmi_msgdefs.h	3430	0644	edit dl rm
ipmi_ssif_bmc.h	441	0644	edit dl rm
ipsec.h	947	0644	edit dl rm
ipv6.h	4169	0644	edit dl rm
ipv6_route.h	1908	0644	edit dl rm
ipx.h	2347	0644	edit dl rm
ip_vs.h	14135	0644	edit dl rm
irqnr.h	104	0644	edit dl rm
iso_fs.h	6485	0644	edit dl rm
isst_if.h	15281	0644	edit dl rm
ivtv.h	3022	0644	edit dl rm
ivtvfb.h	1207	0644	edit dl rm
jffs2.h	6815	0644	edit dl rm
joystick.h	3434	0644	edit dl rm
kcm.h	822	0644	edit dl rm
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kcov.h	1963	0644	edit dl rm
kd.h	6452	0644	edit dl rm
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kernel.h	194	0644	edit dl rm
kernelcapi.h	1019	0644	edit dl rm
kexec.h	2097	0644	edit dl rm
keyboard.h	13459	0644	edit dl rm
keyctl.h	5996	0644	edit dl rm
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kvm.h	48372	0644	edit dl rm
kvm_para.h	1001	0644	edit dl rm
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lp.h	4190	0644	edit dl rm
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mptcp.h	3763	0644	edit dl rm
mptcp_pm.h	4407	0644	edit dl rm
mqueue.h	2201	0644	edit dl rm
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mrp_bridge.h	1708	0644	edit dl rm
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msg.h	3386	0644	edit dl rm
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mtio.h	8175	0644	edit dl rm
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net.h	2085	0644	edit dl rm
netconf.h	614	0644	edit dl rm
netdev.h	5786	0644	edit dl rm
netdevice.h	2253	0644	edit dl rm
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netfilter_arp.h	445	0644	edit dl rm
netfilter_bridge.h	1168	0644	edit dl rm
netfilter_decnet.h	1758	0644	edit dl rm
netfilter_ipv4.h	1488	0644	edit dl rm
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nfs_fs.h	1654	0644	edit dl rm
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nvram.h	532	0644	edit dl rm
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omapfb.h	5918	0644	edit dl rm
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packet_diag.h	1672	0644	edit dl rm
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pci.h	1380	0644	edit dl rm
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pci_regs.h	63374	0644	edit dl rm
perf_event.h	43709	0644	edit dl rm
personality.h	2097	0644	edit dl rm
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string.h	238	0644	edit dl rm
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sysinfo.h	1049	0644	edit dl rm
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taskstats.h	8322	0644	edit dl rm
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Edit: /usr/include/linux/openvswitch.h (41733B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/*
 * Copyright (c) 2007-2017 Nicira, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 */

#ifndef __LINUX_OPENVSWITCH_H
#define __LINUX_OPENVSWITCH_H 1

#include <linux/types.h>
#include <linux/if_ether.h>

/**
 * struct ovs_header - header for OVS Generic Netlink messages.
 * @dp_ifindex: ifindex of local port for datapath (0 to make a request not
 * specific to a datapath).
 *
 * Attributes following the header are specific to a particular OVS Generic
 * Netlink family, but all of the OVS families use this header.
 */

struct ovs_header {
	int dp_ifindex;
};

/* Datapaths. */

#define OVS_DATAPATH_FAMILY  "ovs_datapath"
#define OVS_DATAPATH_MCGROUP "ovs_datapath"

/* V2:
 *   - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
 *     when creating the datapath.
 */
#define OVS_DATAPATH_VERSION 2

/* First OVS datapath version to support features */
#define OVS_DP_VER_FEATURES 2

enum ovs_datapath_cmd {
	OVS_DP_CMD_UNSPEC,
	OVS_DP_CMD_NEW,
	OVS_DP_CMD_DEL,
	OVS_DP_CMD_GET,
	OVS_DP_CMD_SET
};

/**
 * enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
 * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
 * port".  This is the name of the network device whose dp_ifindex is given in
 * the &struct ovs_header.  Always present in notifications.  Required in
 * %OVS_DP_NEW requests.  May be used as an alternative to specifying
 * dp_ifindex in other requests (with a dp_ifindex of 0).
 * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
 * set on the datapath port (for OVS_ACTION_ATTR_MISS).  Only valid on
 * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
 * not be sent.
 * @OVS_DP_ATTR_PER_CPU_PIDS: Per-cpu array of PIDs for upcalls when
 * OVS_DP_F_DISPATCH_UPCALL_PER_CPU feature is set.
 * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
 * datapath.  Always present in notifications.
 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
 * datapath. Always present in notifications.
 * @OVS_DP_ATTR_IFINDEX: Interface index for a new datapath netdev. Only
 * valid for %OVS_DP_CMD_NEW requests.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_DP_* commands.
 */
enum ovs_datapath_attr {
	OVS_DP_ATTR_UNSPEC,
	OVS_DP_ATTR_NAME,		/* name of dp_ifindex netdev */
	OVS_DP_ATTR_UPCALL_PID,		/* Netlink PID to receive upcalls */
	OVS_DP_ATTR_STATS,		/* struct ovs_dp_stats */
	OVS_DP_ATTR_MEGAFLOW_STATS,	/* struct ovs_dp_megaflow_stats */
	OVS_DP_ATTR_USER_FEATURES,	/* OVS_DP_F_*  */
	OVS_DP_ATTR_PAD,
	OVS_DP_ATTR_MASKS_CACHE_SIZE,
	OVS_DP_ATTR_PER_CPU_PIDS,   /* Netlink PIDS to receive upcalls in
				     * per-cpu dispatch mode
				     */
	OVS_DP_ATTR_IFINDEX,
	__OVS_DP_ATTR_MAX
};

#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)

struct ovs_dp_stats {
	__u64 n_hit;             /* Number of flow table matches. */
	__u64 n_missed;          /* Number of flow table misses. */
	__u64 n_lost;            /* Number of misses not sent to userspace. */
	__u64 n_flows;           /* Number of flows present */
};

struct ovs_dp_megaflow_stats {
	__u64 n_mask_hit;	 /* Number of masks used for flow lookups. */
	__u32 n_masks;		 /* Number of masks for the datapath. */
	__u32 pad0;		 /* Pad for future expension. */
	__u64 n_cache_hit;       /* Number of cache matches for flow lookups. */
	__u64 pad1;		 /* Pad for future expension. */
};

struct ovs_vport_stats {
	__u64   rx_packets;		/* total packets received       */
	__u64   tx_packets;		/* total packets transmitted    */
	__u64   rx_bytes;		/* total bytes received         */
	__u64   tx_bytes;		/* total bytes transmitted      */
	__u64   rx_errors;		/* bad packets received         */
	__u64   tx_errors;		/* packet transmit problems     */
	__u64   rx_dropped;		/* no space in linux buffers    */
	__u64   tx_dropped;		/* no space available in linux  */
};

/* Allow last Netlink attribute to be unaligned */
#define OVS_DP_F_UNALIGNED	(1 << 0)

/* Allow datapath to associate multiple Netlink PIDs to each vport */
#define OVS_DP_F_VPORT_PIDS	(1 << 1)

/* Allow tc offload recirc sharing */
#define OVS_DP_F_TC_RECIRC_SHARING	(1 << 2)

/* Allow per-cpu dispatch of upcalls */
#define OVS_DP_F_DISPATCH_UPCALL_PER_CPU	(1 << 3)

/* Fixed logical ports. */
#define OVSP_LOCAL      ((__u32)0)

/* Packet transfer. */

#define OVS_PACKET_FAMILY "ovs_packet"
#define OVS_PACKET_VERSION 0x1

enum ovs_packet_cmd {
	OVS_PACKET_CMD_UNSPEC,

/* Kernel-to-user notifications. */
	OVS_PACKET_CMD_MISS,    /* Flow table miss. */
	OVS_PACKET_CMD_ACTION,  /* OVS_ACTION_ATTR_USERSPACE action. */

/* Userspace commands. */
	OVS_PACKET_CMD_EXECUTE  /* Apply actions to a packet. */
};

/**
 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
 * @OVS_PACKET_ATTR_PACKET: Present for all notifications.  Contains the entire
 * packet as received, from the start of the Ethernet header onward.  For
 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
 * the flow key extracted from the packet as originally received.
 * @OVS_PACKET_ATTR_KEY: Present for all notifications.  Contains the flow key
 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes.  This allows
 * userspace to adapt its flow setup strategy by comparing its notion of the
 * flow key against the kernel's.
 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet.  Used
 * for %OVS_PACKET_CMD_EXECUTE.  It has nested %OVS_ACTION_ATTR_* attributes.
 * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional
 * %OVS_USERSPACE_ATTR_ACTIONS attribute.
 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
 * specified there.
 * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION
 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
 * %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_LEN: Packet size before truncation.
 * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
 * size.
 * @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb).
 * @OVS_PACKET_ATTR_UPCALL_PID: Netlink PID to use for upcalls while
 * processing %OVS_PACKET_CMD_EXECUTE.  Takes precedence over all other ways
 * to determine the Netlink PID including %OVS_USERSPACE_ATTR_PID,
 * %OVS_DP_ATTR_UPCALL_PID, %OVS_DP_ATTR_PER_CPU_PIDS and the
 * %OVS_VPORT_ATTR_UPCALL_PID.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_PACKET_* commands.
 */
enum ovs_packet_attr {
	OVS_PACKET_ATTR_UNSPEC,
	OVS_PACKET_ATTR_PACKET,      /* Packet data. */
	OVS_PACKET_ATTR_KEY,         /* Nested OVS_KEY_ATTR_* attributes. */
	OVS_PACKET_ATTR_ACTIONS,     /* Nested OVS_ACTION_ATTR_* attributes. */
	OVS_PACKET_ATTR_USERDATA,    /* OVS_ACTION_ATTR_USERSPACE arg. */
	OVS_PACKET_ATTR_EGRESS_TUN_KEY,  /* Nested OVS_TUNNEL_KEY_ATTR_*
					    attributes. */
	OVS_PACKET_ATTR_UNUSED1,
	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_LEN,	    /* Packet size before truncation. */
	OVS_PACKET_ATTR_HASH,	    /* Packet hash. */
	OVS_PACKET_ATTR_UPCALL_PID, /* u32 Netlink PID. */
	__OVS_PACKET_ATTR_MAX
};

#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)

/* Virtual ports. */

#define OVS_VPORT_FAMILY  "ovs_vport"
#define OVS_VPORT_MCGROUP "ovs_vport"
#define OVS_VPORT_VERSION 0x1

enum ovs_vport_cmd {
	OVS_VPORT_CMD_UNSPEC,
	OVS_VPORT_CMD_NEW,
	OVS_VPORT_CMD_DEL,
	OVS_VPORT_CMD_GET,
	OVS_VPORT_CMD_SET
};

enum ovs_vport_type {
	OVS_VPORT_TYPE_UNSPEC,
	OVS_VPORT_TYPE_NETDEV,   /* network device */
	OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
	OVS_VPORT_TYPE_GRE,      /* GRE tunnel. */
	OVS_VPORT_TYPE_VXLAN,	 /* VXLAN tunnel. */
	OVS_VPORT_TYPE_GENEVE,	 /* Geneve tunnel. */
	__OVS_VPORT_TYPE_MAX
};

#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)

/**
 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
 * of vport.
 * @OVS_VPORT_ATTR_NAME: Name of vport.  For a vport based on a network device
 * this is the name of the network device.  Maximum length %IFNAMSIZ-1 bytes
 * plus a null terminator.
 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
 * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace
 * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
 * received on this port.  If this is a single-element array of value 0,
 * upcalls should not be sent.
 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
 * packets sent or received through the vport.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_VPORT_* commands.
 *
 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
 * %OVS_VPORT_ATTR_NAME attributes are required.  %OVS_VPORT_ATTR_PORT_NO is
 * optional; if not specified a free port number is automatically selected.
 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
 * of vport.
 *
 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
 * look up the vport to operate on; otherwise dp_idx from the &struct
 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
 */
enum ovs_vport_attr {
	OVS_VPORT_ATTR_UNSPEC,
	OVS_VPORT_ATTR_PORT_NO,	/* u32 port number within datapath */
	OVS_VPORT_ATTR_TYPE,	/* u32 OVS_VPORT_TYPE_* constant. */
	OVS_VPORT_ATTR_NAME,	/* string name, up to IFNAMSIZ bytes long */
	OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
	OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
				/* receiving upcalls */
	OVS_VPORT_ATTR_STATS,	/* struct ovs_vport_stats */
	OVS_VPORT_ATTR_PAD,
	OVS_VPORT_ATTR_IFINDEX,
	OVS_VPORT_ATTR_NETNSID,
	OVS_VPORT_ATTR_UPCALL_STATS,
	__OVS_VPORT_ATTR_MAX
};

#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)

/**
 * enum ovs_vport_upcall_attr - attributes for %OVS_VPORT_UPCALL* commands
 * @OVS_VPORT_UPCALL_SUCCESS: 64-bit upcall success packets.
 * @OVS_VPORT_UPCALL_FAIL: 64-bit upcall fail packets.
 */
enum ovs_vport_upcall_attr {
	OVS_VPORT_UPCALL_ATTR_SUCCESS,
	OVS_VPORT_UPCALL_ATTR_FAIL,
	__OVS_VPORT_UPCALL_ATTR_MAX
};

#define OVS_VPORT_UPCALL_ATTR_MAX (__OVS_VPORT_UPCALL_ATTR_MAX - 1)

enum {
	OVS_VXLAN_EXT_UNSPEC,
	OVS_VXLAN_EXT_GBP,	/* Flag or __u32 */
	__OVS_VXLAN_EXT_MAX,
};

#define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1)

/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
 */
enum {
	OVS_TUNNEL_ATTR_UNSPEC,
	OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
	OVS_TUNNEL_ATTR_EXTENSION,
	__OVS_TUNNEL_ATTR_MAX
};

#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)

/* Flows. */

#define OVS_FLOW_FAMILY  "ovs_flow"
#define OVS_FLOW_MCGROUP "ovs_flow"
#define OVS_FLOW_VERSION 0x1

enum ovs_flow_cmd {
	OVS_FLOW_CMD_UNSPEC,
	OVS_FLOW_CMD_NEW,
	OVS_FLOW_CMD_DEL,
	OVS_FLOW_CMD_GET,
	OVS_FLOW_CMD_SET
};

struct ovs_flow_stats {
	__u64 n_packets;         /* Number of matched packets. */
	__u64 n_bytes;           /* Number of matched bytes. */
};

enum ovs_key_attr {
	OVS_KEY_ATTR_UNSPEC,
	OVS_KEY_ATTR_ENCAP,	/* Nested set of encapsulated attributes. */
	OVS_KEY_ATTR_PRIORITY,  /* u32 skb->priority */
	OVS_KEY_ATTR_IN_PORT,   /* u32 OVS dp port number */
	OVS_KEY_ATTR_ETHERNET,  /* struct ovs_key_ethernet */
	OVS_KEY_ATTR_VLAN,	/* be16 VLAN TCI */
	OVS_KEY_ATTR_ETHERTYPE,	/* be16 Ethernet type */
	OVS_KEY_ATTR_IPV4,      /* struct ovs_key_ipv4 */
	OVS_KEY_ATTR_IPV6,      /* struct ovs_key_ipv6 */
	OVS_KEY_ATTR_TCP,       /* struct ovs_key_tcp */
	OVS_KEY_ATTR_UDP,       /* struct ovs_key_udp */
	OVS_KEY_ATTR_ICMP,      /* struct ovs_key_icmp */
	OVS_KEY_ATTR_ICMPV6,    /* struct ovs_key_icmpv6 */
	OVS_KEY_ATTR_ARP,       /* struct ovs_key_arp */
	OVS_KEY_ATTR_ND,        /* struct ovs_key_nd */
	OVS_KEY_ATTR_SKB_MARK,  /* u32 skb mark */
	OVS_KEY_ATTR_TUNNEL,    /* Nested set of ovs_tunnel attributes */
	OVS_KEY_ATTR_SCTP,      /* struct ovs_key_sctp */
	OVS_KEY_ATTR_TCP_FLAGS,	/* be16 TCP flags. */
	OVS_KEY_ATTR_DP_HASH,      /* u32 hash value. Value 0 indicates the hash
				   is not computed by the datapath. */
	OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
	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 label */
	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_MAX
};

#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)

enum ovs_tunnel_key_attr {
	/* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
	OVS_TUNNEL_KEY_ATTR_ID,                 /* be64 Tunnel ID */
	OVS_TUNNEL_KEY_ATTR_IPV4_SRC,           /* be32 src IP address. */
	OVS_TUNNEL_KEY_ATTR_IPV4_DST,           /* be32 dst IP address. */
	OVS_TUNNEL_KEY_ATTR_TOS,                /* u8 Tunnel IP ToS. */
	OVS_TUNNEL_KEY_ATTR_TTL,                /* u8 Tunnel IP TTL. */
	OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT,      /* No argument, set DF. */
	OVS_TUNNEL_KEY_ATTR_CSUM,               /* No argument. CSUM packet. */
	OVS_TUNNEL_KEY_ATTR_OAM,                /* No argument. OAM frame.  */
	OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS,        /* Array of Geneve options. */
	OVS_TUNNEL_KEY_ATTR_TP_SRC,		/* be16 src Transport Port. */
	OVS_TUNNEL_KEY_ATTR_TP_DST,		/* be16 dst Transport Port. */
	OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS,		/* Nested OVS_VXLAN_EXT_* */
	OVS_TUNNEL_KEY_ATTR_IPV6_SRC,		/* struct in6_addr src IPv6 address. */
	OVS_TUNNEL_KEY_ATTR_IPV6_DST,		/* struct in6_addr dst IPv6 address. */
	OVS_TUNNEL_KEY_ATTR_PAD,
	OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS,	/* struct erspan_metadata */
	OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE,	/* No argument. IPV4_INFO_BRIDGE mode.*/
	__OVS_TUNNEL_KEY_ATTR_MAX
};

#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)

/**
 * enum ovs_frag_type - IPv4 and IPv6 fragment type
 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
 *
 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
 * ovs_key_ipv6.
 */
enum ovs_frag_type {
	OVS_FRAG_TYPE_NONE,
	OVS_FRAG_TYPE_FIRST,
	OVS_FRAG_TYPE_LATER,
	__OVS_FRAG_TYPE_MAX
};

#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)

struct ovs_key_ethernet {
	__u8	 eth_src[ETH_ALEN];
	__u8	 eth_dst[ETH_ALEN];
};

struct ovs_key_mpls {
	__be32 mpls_lse;
};

struct ovs_key_ipv4 {
	__be32 ipv4_src;
	__be32 ipv4_dst;
	__u8   ipv4_proto;
	__u8   ipv4_tos;
	__u8   ipv4_ttl;
	__u8   ipv4_frag;	/* One of OVS_FRAG_TYPE_*. */
};

struct ovs_key_ipv6 {
	__be32 ipv6_src[4];
	__be32 ipv6_dst[4];
	__be32 ipv6_label;	/* 20-bits in least-significant bits. */
	__u8   ipv6_proto;
	__u8   ipv6_tclass;
	__u8   ipv6_hlimit;
	__u8   ipv6_frag;	/* One of OVS_FRAG_TYPE_*. */
};

struct ovs_key_tcp {
	__be16 tcp_src;
	__be16 tcp_dst;
};

struct ovs_key_udp {
	__be16 udp_src;
	__be16 udp_dst;
};

struct ovs_key_sctp {
	__be16 sctp_src;
	__be16 sctp_dst;
};

struct ovs_key_icmp {
	__u8 icmp_type;
	__u8 icmp_code;
};

struct ovs_key_icmpv6 {
	__u8 icmpv6_type;
	__u8 icmpv6_code;
};

struct ovs_key_arp {
	__be32 arp_sip;
	__be32 arp_tip;
	__be16 arp_op;
	__u8   arp_sha[ETH_ALEN];
	__u8   arp_tha[ETH_ALEN];
};

struct ovs_key_nd {
	__be32	nd_target[4];
	__u8	nd_sll[ETH_ALEN];
	__u8	nd_tll[ETH_ALEN];
};

#define OVS_CT_LABELS_LEN_32	4
#define OVS_CT_LABELS_LEN	(OVS_CT_LABELS_LEN_32 * sizeof(__u32))
struct ovs_key_ct_labels {
	union {
		__u8	ct_labels[OVS_CT_LABELS_LEN];
		__u32	ct_labels_32[OVS_CT_LABELS_LEN_32];
	};
};

/* 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)

struct ovs_key_ct_tuple_ipv4 {
	__be32 ipv4_src;
	__be32 ipv4_dst;
	__be16 src_port;
	__be16 dst_port;
	__u8   ipv4_proto;
};

struct ovs_key_ct_tuple_ipv6 {
	__be32 ipv6_src[4];
	__be32 ipv6_dst[4];
	__be16 src_port;
	__be16 dst_port;
	__u8   ipv6_proto;
};

enum ovs_nsh_key_attr {
	OVS_NSH_KEY_ATTR_UNSPEC,
	OVS_NSH_KEY_ATTR_BASE,  /* struct ovs_nsh_key_base. */
	OVS_NSH_KEY_ATTR_MD1,   /* struct ovs_nsh_key_md1. */
	OVS_NSH_KEY_ATTR_MD2,   /* variable-length octets for MD type 2. */
	__OVS_NSH_KEY_ATTR_MAX
};

#define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1)

struct ovs_nsh_key_base {
	__u8 flags;
	__u8 ttl;
	__u8 mdtype;
	__u8 np;
	__be32 path_hdr;
};

#define NSH_MD1_CONTEXT_SIZE 4

struct ovs_nsh_key_md1 {
	__be32 context[NSH_MD1_CONTEXT_SIZE];
};

/**
 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
 * key.  Always present in notifications.  Required for all requests (except
 * dumps).
 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
 * the actions to take for packets that match the key.  Always present in
 * notifications.  Required for %OVS_FLOW_CMD_NEW requests, optional for
 * %OVS_FLOW_CMD_SET requests.  An %OVS_FLOW_CMD_SET without
 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions.  To clear the actions,
 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given.
 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
 * flow.  Present in notifications if the stats would be nonzero.  Ignored in
 * requests.
 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
 * TCP flags seen on packets in this flow.  Only present in notifications for
 * TCP flows, and only if it would be nonzero.  Ignored in requests.
 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
 * the system monotonic clock, at which a packet was last processed for this
 * flow.  Only present in notifications if a packet has been processed for this
 * flow.  Ignored in requests.
 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
 * last-used time, accumulated TCP flags, and statistics for this flow.
 * Otherwise ignored in requests.  Never present in notifications.
 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
 * match with corresponding flow key bit, while mask bit value '0' specifies
 * a wildcarded match. Omitting attribute is treated as wildcarding all
 * corresponding fields. Optional for all requests. If not present,
 * all flow key bits are exact match bits.
 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique
 * identifier for the flow. Causes the flow to be indexed by this value rather
 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all
 * requests. Present in notifications if the flow was created with this
 * attribute.
 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_*
 * flags that provide alternative semantics for flow installation and
 * retrieval. Optional for all requests.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_FLOW_* commands.
 */
enum ovs_flow_attr {
	OVS_FLOW_ATTR_UNSPEC,
	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. */
	OVS_FLOW_ATTR_CLEAR,     /* Flag to clear stats, tcp_flags, used. */
	OVS_FLOW_ATTR_MASK,      /* Sequence of OVS_KEY_ATTR_* attributes. */
	OVS_FLOW_ATTR_PROBE,     /* Flow operation is a feature probe, error
				  * logging should be suppressed. */
	OVS_FLOW_ATTR_UFID,      /* Variable length unique flow identifier. */
	OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */
	OVS_FLOW_ATTR_PAD,
	__OVS_FLOW_ATTR_MAX
};

#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)

/**
 * Omit attributes for notifications.
 *
 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath
 * may omit the corresponding %OVS_FLOW_ATTR_* from the response.
 */
#define OVS_UFID_F_OMIT_KEY      (1 << 0)
#define OVS_UFID_F_OMIT_MASK     (1 << 1)
#define OVS_UFID_F_OMIT_ACTIONS  (1 << 2)

/**
 * 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. Nested actions will be able to access the probability value of the
 * parent @OVS_ACTION_ATTR_SAMPLE.
 */
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 variable-length argument is
 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
 * tunnel info.
 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall.
 */
enum ovs_userspace_attr {
	OVS_USERSPACE_ATTR_UNSPEC,
	OVS_USERSPACE_ATTR_PID,	      /* u32 Netlink PID to receive upcalls. */
	OVS_USERSPACE_ATTR_USERDATA,  /* Optional user-specified cookie. */
	OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,  /* Optional, u32 output port
					      * to get tunnel info. */
	OVS_USERSPACE_ATTR_ACTIONS,   /* Optional flag to get actions. */
	__OVS_USERSPACE_ATTR_MAX
};

#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)

struct ovs_action_trunc {
	__u32 max_len; /* Max packet size in bytes. */
};

/**
 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
 * @mpls_lse: MPLS label stack entry to push.
 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
 *
 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
 */
struct ovs_action_push_mpls {
	__be32 mpls_lse;
	__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
};

/**
 * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action
 * argument.
 * @mpls_lse: MPLS label stack entry to push.
 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
 * @tun_flags: MPLS tunnel attributes.
 *
 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
 */
struct ovs_action_add_mpls {
	__be32 mpls_lse;
	__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
	__u16 tun_flags;
};

#define OVS_MPLS_L3_TUNNEL_FLAG_MASK  (1 << 0) /* Flag to specify the place of
						* insertion of MPLS header.
						* When false, the MPLS header
						* will be inserted at the start
						* of the packet.
						* When true, the MPLS header
						* will be inserted at the start
						* of the l3 header.
						*/

/**
 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
 * @vlan_tpid: Tag protocol identifier (TPID) to push.
 * @vlan_tci: Tag control identifier (TCI) to push.  The CFI bit must be set
 * (but it will not be set in the 802.1Q header that is pushed).
 *
 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
 * The only acceptable TPID values are those that the kernel module also parses
 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
 */
struct ovs_action_push_vlan {
	__be16 vlan_tpid;	/* 802.1Q or 802.1ad TPID. */
	__be16 vlan_tci;	/* 802.1Q TCI (VLAN ID and priority). */
};

/* Data path hash algorithm for computing Datapath hash.
 *
 * The algorithm type only specifies the fields in a flow
 * will be used as part of the hash. Each datapath is free
 * to use its own hash algorithm. The hash value will be
 * opaque to the user space daemon.
 */
enum ovs_hash_alg {
	OVS_HASH_ALG_L4,
	OVS_HASH_ALG_SYM_L4,
};

/*
 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
 * @hash_alg: Algorithm used to compute hash prior to recirculation.
 * @hash_basis: basis used for computing hash.
 */
struct ovs_action_hash {
	__u32  hash_alg;     /* One of ovs_hash_alg. */
	__u32  hash_basis;
};

/**
 * 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'. The flow key for the current packet will
 * retain the pre-commit connection state.
 * @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.
 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address
 * translation (NAT) on the packet.
 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing
 * nothing if the connection is already committed will check that the current
 * packet is in conntrack entry's original direction.  If directionality does
 * not match, will delete the existing conntrack entry and commit a new one.
 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types
 * (enum ip_conntrack_events IPCT_*) should be reported.  For any bit set to
 * zero, the corresponding event type is not generated.  Default behavior
 * depends on system configuration, but typically all event types are
 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot
 * of events.  Explicitly passing this attribute allows limiting the updates
 * received to the events of interest.  The bit 1 << IPCT_NEW, 1 <<
 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to
 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups,
 * respectively.  Remaining bits control the changes for which an event is
 * delivered on the NFNLGRP_CONNTRACK_UPDATE group.
 * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout.
 */
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,     /* labels 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_FORCE_COMMIT,  /* No argument */
	OVS_CT_ATTR_EVENTMASK,  /* u32 mask of IPCT_* events. */
	OVS_CT_ATTR_TIMEOUT,	/* Associate timeout with this connection for
				 * fine-grain timeout tuning. */
	__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.
 * Packets of 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
 * (non-committed) connections, and they may be included only when the CT
 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or
 * @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)

/*
 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument.
 * @addresses: Source and destination MAC addresses.
 * @eth_type: Ethernet type
 */
struct ovs_action_push_eth {
	struct ovs_key_ethernet addresses;
};

/*
 * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN.
 *
 * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for.
 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_*
 * actions to apply if the packer length is greater than the specified
 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_*
 * actions to apply if the packer length is lesser or equal to the specified
 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
 */
enum ovs_check_pkt_len_attr {
	OVS_CHECK_PKT_LEN_ATTR_UNSPEC,
	OVS_CHECK_PKT_LEN_ATTR_PKT_LEN,
	OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER,
	OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL,
	__OVS_CHECK_PKT_LEN_ATTR_MAX,

};

#define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1)

#define OVS_PSAMPLE_COOKIE_MAX_SIZE 16
/**
 * enum ovs_psample_attr - Attributes for %OVS_ACTION_ATTR_PSAMPLE
 * action.
 *
 * @OVS_PSAMPLE_ATTR_GROUP: 32-bit number to identify the source of the
 * sample.
 * @OVS_PSAMPLE_ATTR_COOKIE: An optional variable-length binary cookie that
 * contains user-defined metadata. The maximum length is
 * OVS_PSAMPLE_COOKIE_MAX_SIZE bytes.
 *
 * Sends the packet to the psample multicast group with the specified group and
 * cookie. It is possible to combine this action with the
 * %OVS_ACTION_ATTR_TRUNC action to limit the size of the sample.
 */
enum ovs_psample_attr {
	OVS_PSAMPLE_ATTR_GROUP = 1,	/* u32 number. */
	OVS_PSAMPLE_ATTR_COOKIE,	/* Optional, user specified cookie. */

/* private: */
	__OVS_PSAMPLE_ATTR_MAX
};

#define OVS_PSAMPLE_ATTR_MAX (__OVS_PSAMPLE_ATTR_MAX - 1)

/**
 * enum ovs_action_attr - Action types.
 *
 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size.
 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
 * %OVS_USERSPACE_ATTR_* attributes.
 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header.  The
 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
 * value.
 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header.  A
 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value,
 * and a mask.  For every bit set in the mask, the corresponding bit value
 * is copied from the value to the packet header field, rest of the bits are
 * left unchanged.  The non-masked value bits must be passed in as zeroes.
 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
 * onto the packet.
 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
 * from the packet.
 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
 * the nested %OVS_SAMPLE_ATTR_* attributes.
 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
 * top of the packets MPLS label stack.  Set the ethertype of the
 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
 * indicate the new packet contents.
 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
 * packet's MPLS label stack.  Set the encapsulating frame's ethertype to
 * 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.
 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the
 * packet.
 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the
 * packet.
 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet.
 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet.
 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet.
 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the
 * packet, or modify the packet (e.g., change the DSCP field).
 * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of
 * actions without affecting the original packet and key.
 * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set
 * of actions if greater than the specified packet length, else execute
 * another set of actions.
 * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the
 * start of the packet or at the start of the l3 header depending on the value
 * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS
 * argument.
 * @OVS_ACTION_ATTR_DROP: Explicit drop action.
 * @OVS_ACTION_ATTR_PSAMPLE: Send a sample of the packet to external observers
 * via psample.
 *
 * 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
 * type may not be changed.
 *
 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated
 * from the @OVS_ACTION_ATTR_SET.
 */

enum ovs_action_attr {
	OVS_ACTION_ATTR_UNSPEC,
	OVS_ACTION_ATTR_OUTPUT,	      /* u32 port number. */
	OVS_ACTION_ATTR_USERSPACE,    /* Nested OVS_USERSPACE_ATTR_*. */
	OVS_ACTION_ATTR_SET,          /* One nested OVS_KEY_ATTR_*. */
	OVS_ACTION_ATTR_PUSH_VLAN,    /* struct ovs_action_push_vlan. */
	OVS_ACTION_ATTR_POP_VLAN,     /* No argument. */
	OVS_ACTION_ATTR_SAMPLE,       /* Nested OVS_SAMPLE_ATTR_*. */
	OVS_ACTION_ATTR_RECIRC,       /* u32 recirc_id. */
	OVS_ACTION_ATTR_HASH,	      /* struct ovs_action_hash. */
	OVS_ACTION_ATTR_PUSH_MPLS,    /* struct ovs_action_push_mpls. */
	OVS_ACTION_ATTR_POP_MPLS,     /* __be16 ethertype. */
	OVS_ACTION_ATTR_SET_MASKED,   /* One nested OVS_KEY_ATTR_* including
				       * data immediately followed by a mask.
				       * The data must be zero for the unmasked
				       * bits. */
	OVS_ACTION_ATTR_CT,           /* Nested OVS_CT_ATTR_* . */
	OVS_ACTION_ATTR_TRUNC,        /* u32 struct ovs_action_trunc. */
	OVS_ACTION_ATTR_PUSH_ETH,     /* struct ovs_action_push_eth. */
	OVS_ACTION_ATTR_POP_ETH,      /* No argument. */
	OVS_ACTION_ATTR_CT_CLEAR,     /* No argument. */
	OVS_ACTION_ATTR_PUSH_NSH,     /* Nested OVS_NSH_KEY_ATTR_*. */
	OVS_ACTION_ATTR_POP_NSH,      /* No argument. */
	OVS_ACTION_ATTR_METER,        /* u32 meter ID. */
	OVS_ACTION_ATTR_CLONE,        /* Nested OVS_CLONE_ATTR_*.  */
	OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */
	OVS_ACTION_ATTR_ADD_MPLS,     /* struct ovs_action_add_mpls. */
	OVS_ACTION_ATTR_DEC_TTL,      /* Nested OVS_DEC_TTL_ATTR_*. */
	OVS_ACTION_ATTR_DROP,         /* u32 error code. */
	OVS_ACTION_ATTR_PSAMPLE,      /* Nested OVS_PSAMPLE_ATTR_*. */

__OVS_ACTION_ATTR_MAX,	      /* Nothing past this will be accepted
				       * from userspace. */

};

#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)

/* Meters. */
#define OVS_METER_FAMILY  "ovs_meter"
#define OVS_METER_MCGROUP "ovs_meter"
#define OVS_METER_VERSION 0x1

enum ovs_meter_cmd {
	OVS_METER_CMD_UNSPEC,
	OVS_METER_CMD_FEATURES,	/* Get features supported by the datapath. */
	OVS_METER_CMD_SET,	/* Add or modify a meter. */
	OVS_METER_CMD_DEL,	/* Delete a meter. */
	OVS_METER_CMD_GET	/* Get meter stats. */
};

enum ovs_meter_attr {
	OVS_METER_ATTR_UNSPEC,
	OVS_METER_ATTR_ID,	/* u32 meter ID within datapath. */
	OVS_METER_ATTR_KBPS,	/* No argument. If set, units in kilobits
				 * per second. Otherwise, units in
				 * packets per second.
				 */
	OVS_METER_ATTR_STATS,	/* struct ovs_flow_stats for the meter. */
	OVS_METER_ATTR_BANDS,	/* Nested attributes for meter bands. */
	OVS_METER_ATTR_USED,	/* u64 msecs last used in monotonic time. */
	OVS_METER_ATTR_CLEAR,	/* Flag to clear stats, used. */
	OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */
	OVS_METER_ATTR_MAX_BANDS,  /* u32 max number of bands per meter. */
	OVS_METER_ATTR_PAD,
	__OVS_METER_ATTR_MAX
};

#define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1)

enum ovs_band_attr {
	OVS_BAND_ATTR_UNSPEC,
	OVS_BAND_ATTR_TYPE,	/* u32 OVS_METER_BAND_TYPE_* constant. */
	OVS_BAND_ATTR_RATE,	/* u32 band rate in meter units (see above). */
	OVS_BAND_ATTR_BURST,	/* u32 burst size in meter units. */
	OVS_BAND_ATTR_STATS,	/* struct ovs_flow_stats for the band. */
	__OVS_BAND_ATTR_MAX
};

#define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1)

enum ovs_meter_band_type {
	OVS_METER_BAND_TYPE_UNSPEC,
	OVS_METER_BAND_TYPE_DROP,   /* Drop exceeding packets. */
	__OVS_METER_BAND_TYPE_MAX
};

#define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1)

/* Conntrack limit */
#define OVS_CT_LIMIT_FAMILY  "ovs_ct_limit"
#define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit"
#define OVS_CT_LIMIT_VERSION 0x1

enum ovs_ct_limit_cmd {
	OVS_CT_LIMIT_CMD_UNSPEC,
	OVS_CT_LIMIT_CMD_SET,		/* Add or modify ct limit. */
	OVS_CT_LIMIT_CMD_DEL,		/* Delete ct limit. */
	OVS_CT_LIMIT_CMD_GET		/* Get ct limit. */
};

enum ovs_ct_limit_attr {
	OVS_CT_LIMIT_ATTR_UNSPEC,
	OVS_CT_LIMIT_ATTR_ZONE_LIMIT,	/* Nested struct ovs_zone_limit. */
	__OVS_CT_LIMIT_ATTR_MAX
};

#define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1)

#define OVS_ZONE_LIMIT_DEFAULT_ZONE -1

struct ovs_zone_limit {
	int zone_id;
	__u32 limit;
	__u32 count;
};

enum ovs_dec_ttl_attr {
	OVS_DEC_TTL_ATTR_UNSPEC,
	OVS_DEC_TTL_ATTR_ACTION,	/* Nested struct nlattr */
	__OVS_DEC_TTL_ATTR_MAX
};

#define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1)

#endif /* _LINUX_OPENVSWITCH_H */

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