1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
4 * Copyright (c) 2007-2017 Nicira, Inc.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #ifndef _UAPI__LINUX_OPENVSWITCH_H
22 #define _UAPI__LINUX_OPENVSWITCH_H 1
24 #include <linux/types.h>
25 #include <linux/if_ether.h>
28 * struct ovs_header - header for OVS Generic Netlink messages.
29 * @dp_ifindex: ifindex of local port for datapath (0 to make a request not
30 * specific to a datapath).
32 * Attributes following the header are specific to a particular OVS Generic
33 * Netlink family, but all of the OVS families use this header.
42 #define OVS_DATAPATH_FAMILY "ovs_datapath"
43 #define OVS_DATAPATH_MCGROUP "ovs_datapath"
46 * - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
47 * when creating the datapath.
49 #define OVS_DATAPATH_VERSION 2
51 /* First OVS datapath version to support features */
52 #define OVS_DP_VER_FEATURES 2
54 enum ovs_datapath_cmd {
63 * enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
64 * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
65 * port". This is the name of the network device whose dp_ifindex is given in
66 * the &struct ovs_header. Always present in notifications. Required in
67 * %OVS_DP_NEW requests. May be used as an alternative to specifying
68 * dp_ifindex in other requests (with a dp_ifindex of 0).
69 * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
70 * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on
71 * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
73 * @OVS_DP_ATTR_PER_CPU_PIDS: Per-cpu array of PIDs for upcalls when
74 * OVS_DP_F_DISPATCH_UPCALL_PER_CPU feature is set.
75 * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
76 * datapath. Always present in notifications.
77 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
78 * datapath. Always present in notifications.
80 * These attributes follow the &struct ovs_header within the Generic Netlink
81 * payload for %OVS_DP_* commands.
83 enum ovs_datapath_attr {
85 OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
86 OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
87 OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
88 OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */
89 OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
91 OVS_DP_ATTR_MASKS_CACHE_SIZE,
92 OVS_DP_ATTR_PER_CPU_PIDS, /* Netlink PIDS to receive upcalls in
93 * per-cpu dispatch mode
98 #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)
100 struct ovs_dp_stats {
101 __u64 n_hit; /* Number of flow table matches. */
102 __u64 n_missed; /* Number of flow table misses. */
103 __u64 n_lost; /* Number of misses not sent to userspace. */
104 __u64 n_flows; /* Number of flows present */
107 struct ovs_dp_megaflow_stats {
108 __u64 n_mask_hit; /* Number of masks used for flow lookups. */
109 __u32 n_masks; /* Number of masks for the datapath. */
110 __u32 pad0; /* Pad for future expension. */
111 __u64 n_cache_hit; /* Number of cache matches for flow lookups. */
112 __u64 pad1; /* Pad for future expension. */
115 struct ovs_vport_stats {
116 __u64 rx_packets; /* total packets received */
117 __u64 tx_packets; /* total packets transmitted */
118 __u64 rx_bytes; /* total bytes received */
119 __u64 tx_bytes; /* total bytes transmitted */
120 __u64 rx_errors; /* bad packets received */
121 __u64 tx_errors; /* packet transmit problems */
122 __u64 rx_dropped; /* no space in linux buffers */
123 __u64 tx_dropped; /* no space available in linux */
126 /* Allow last Netlink attribute to be unaligned */
127 #define OVS_DP_F_UNALIGNED (1 << 0)
129 /* Allow datapath to associate multiple Netlink PIDs to each vport */
130 #define OVS_DP_F_VPORT_PIDS (1 << 1)
132 /* Allow tc offload recirc sharing */
133 #define OVS_DP_F_TC_RECIRC_SHARING (1 << 2)
135 /* Allow per-cpu dispatch of upcalls */
136 #define OVS_DP_F_DISPATCH_UPCALL_PER_CPU (1 << 3)
138 /* Fixed logical ports. */
139 #define OVSP_LOCAL ((__u32)0)
141 /* Packet transfer. */
143 #define OVS_PACKET_FAMILY "ovs_packet"
144 #define OVS_PACKET_VERSION 0x1
146 enum ovs_packet_cmd {
147 OVS_PACKET_CMD_UNSPEC,
149 /* Kernel-to-user notifications. */
150 OVS_PACKET_CMD_MISS, /* Flow table miss. */
151 OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
153 /* Userspace commands. */
154 OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
158 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
159 * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire
160 * packet as received, from the start of the Ethernet header onward. For
161 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
162 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
163 * the flow key extracted from the packet as originally received.
164 * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key
165 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
166 * userspace to adapt its flow setup strategy by comparing its notion of the
167 * flow key against the kernel's.
168 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used
169 * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
170 * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional
171 * %OVS_USERSPACE_ATTR_ACTIONS attribute.
172 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
173 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
174 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
176 * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION
177 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
178 * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the
179 * output port is actually a tunnel port. Contains the output tunnel key
180 * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
181 * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and
182 * @OVS_PACKET_ATTR_LEN: Packet size before truncation.
183 * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
185 * @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb).
187 * These attributes follow the &struct ovs_header within the Generic Netlink
188 * payload for %OVS_PACKET_* commands.
190 enum ovs_packet_attr {
191 OVS_PACKET_ATTR_UNSPEC,
192 OVS_PACKET_ATTR_PACKET, /* Packet data. */
193 OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
194 OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
195 OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
196 OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_*
198 OVS_PACKET_ATTR_UNUSED1,
199 OVS_PACKET_ATTR_UNUSED2,
200 OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe,
201 error logging should be suppressed. */
202 OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */
203 OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */
204 OVS_PACKET_ATTR_HASH, /* Packet hash. */
205 __OVS_PACKET_ATTR_MAX
208 #define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
212 #define OVS_VPORT_FAMILY "ovs_vport"
213 #define OVS_VPORT_MCGROUP "ovs_vport"
214 #define OVS_VPORT_VERSION 0x1
217 OVS_VPORT_CMD_UNSPEC,
224 enum ovs_vport_type {
225 OVS_VPORT_TYPE_UNSPEC,
226 OVS_VPORT_TYPE_NETDEV, /* network device */
227 OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
228 OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
229 OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
230 OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */
234 #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
237 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
238 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
239 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
241 * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device
242 * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
243 * plus a null terminator.
244 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
245 * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace
246 * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
247 * received on this port. If this is a single-element array of value 0,
248 * upcalls should not be sent.
249 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
250 * packets sent or received through the vport.
252 * These attributes follow the &struct ovs_header within the Generic Netlink
253 * payload for %OVS_VPORT_* commands.
255 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
256 * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is
257 * optional; if not specified a free port number is automatically selected.
258 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
261 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
262 * look up the vport to operate on; otherwise dp_idx from the &struct
263 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
265 enum ovs_vport_attr {
266 OVS_VPORT_ATTR_UNSPEC,
267 OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */
268 OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */
269 OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
270 OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
271 OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
272 /* receiving upcalls */
273 OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
275 OVS_VPORT_ATTR_IFINDEX,
276 OVS_VPORT_ATTR_NETNSID,
280 #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
283 OVS_VXLAN_EXT_UNSPEC,
284 OVS_VXLAN_EXT_GBP, /* Flag or __u32 */
288 #define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1)
291 /* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
294 OVS_TUNNEL_ATTR_UNSPEC,
295 OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
296 OVS_TUNNEL_ATTR_EXTENSION,
297 __OVS_TUNNEL_ATTR_MAX
300 #define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
304 #define OVS_FLOW_FAMILY "ovs_flow"
305 #define OVS_FLOW_MCGROUP "ovs_flow"
306 #define OVS_FLOW_VERSION 0x1
316 struct ovs_flow_stats {
317 __u64 n_packets; /* Number of matched packets. */
318 __u64 n_bytes; /* Number of matched bytes. */
323 OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */
324 OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */
325 OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */
326 OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */
327 OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */
328 OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */
329 OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */
330 OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */
331 OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */
332 OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */
333 OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */
334 OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */
335 OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */
336 OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
337 OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */
338 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
339 OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
340 OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */
341 OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash
342 is not computed by the datapath. */
343 OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
344 OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls.
345 * The implementation may restrict
346 * the accepted length of the array. */
347 OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */
348 OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */
349 OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */
350 OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */
351 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */
352 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */
353 OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */
355 /* User space decided to squat on types 29 and 30. They are defined
356 * below, but should not be sent to the kernel.
358 * WARNING: No new types should be added unless they are defined
359 * for both kernel and user space (no 'ifdef's). It's hard
360 * to keep compatibility otherwise.
362 OVS_KEY_ATTR_PACKET_TYPE, /* be32 packet type */
363 OVS_KEY_ATTR_ND_EXTENSIONS, /* IPv6 Neighbor Discovery extensions */
365 OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info.
366 * For in-kernel use only.
368 OVS_KEY_ATTR_IPV6_EXTHDRS, /* struct ovs_key_ipv6_exthdr */
372 #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
374 enum ovs_tunnel_key_attr {
375 /* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
376 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
377 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
378 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
379 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
380 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
381 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
382 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
383 OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
384 OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
385 OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
386 OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
387 OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */
388 OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */
389 OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */
390 OVS_TUNNEL_KEY_ATTR_PAD,
391 OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */
392 OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/
393 __OVS_TUNNEL_KEY_ATTR_MAX
396 #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
399 * enum ovs_frag_type - IPv4 and IPv6 fragment type
400 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
401 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
402 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
404 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
414 #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
416 struct ovs_key_ethernet {
417 __u8 eth_src[ETH_ALEN];
418 __u8 eth_dst[ETH_ALEN];
421 struct ovs_key_mpls {
425 struct ovs_key_ipv4 {
431 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */
434 struct ovs_key_ipv6 {
437 __be32 ipv6_label; /* 20-bits in least-significant bits. */
441 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
444 /* separate structure to support backward compatibility with older user space */
445 struct ovs_key_ipv6_exthdrs {
459 struct ovs_key_sctp {
464 struct ovs_key_icmp {
469 struct ovs_key_icmpv6 {
478 __u8 arp_sha[ETH_ALEN];
479 __u8 arp_tha[ETH_ALEN];
484 __u8 nd_sll[ETH_ALEN];
485 __u8 nd_tll[ETH_ALEN];
488 #define OVS_CT_LABELS_LEN_32 4
489 #define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32))
490 struct ovs_key_ct_labels {
492 __u8 ct_labels[OVS_CT_LABELS_LEN];
493 __u32 ct_labels_32[OVS_CT_LABELS_LEN_32];
497 /* OVS_KEY_ATTR_CT_STATE flags */
498 #define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */
499 #define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */
500 #define OVS_CS_F_RELATED 0x04 /* Related to an established
502 #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */
503 #define OVS_CS_F_INVALID 0x10 /* Could not track connection. */
504 #define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */
505 #define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was
508 #define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port
509 * was mangled by NAT.
512 #define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
514 struct ovs_key_ct_tuple_ipv4 {
522 struct ovs_key_ct_tuple_ipv6 {
530 enum ovs_nsh_key_attr {
531 OVS_NSH_KEY_ATTR_UNSPEC,
532 OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */
533 OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */
534 OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */
535 __OVS_NSH_KEY_ATTR_MAX
538 #define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1)
540 struct ovs_nsh_key_base {
548 #define NSH_MD1_CONTEXT_SIZE 4
550 struct ovs_nsh_key_md1 {
551 __be32 context[NSH_MD1_CONTEXT_SIZE];
555 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
556 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
557 * key. Always present in notifications. Required for all requests (except
559 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
560 * the actions to take for packets that match the key. Always present in
561 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for
562 * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without
563 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions,
564 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given.
565 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
566 * flow. Present in notifications if the stats would be nonzero. Ignored in
568 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
569 * TCP flags seen on packets in this flow. Only present in notifications for
570 * TCP flows, and only if it would be nonzero. Ignored in requests.
571 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
572 * the system monotonic clock, at which a packet was last processed for this
573 * flow. Only present in notifications if a packet has been processed for this
574 * flow. Ignored in requests.
575 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
576 * last-used time, accumulated TCP flags, and statistics for this flow.
577 * Otherwise ignored in requests. Never present in notifications.
578 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
579 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
580 * match with corresponding flow key bit, while mask bit value '0' specifies
581 * a wildcarded match. Omitting attribute is treated as wildcarding all
582 * corresponding fields. Optional for all requests. If not present,
583 * all flow key bits are exact match bits.
584 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique
585 * identifier for the flow. Causes the flow to be indexed by this value rather
586 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all
587 * requests. Present in notifications if the flow was created with this
589 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_*
590 * flags that provide alternative semantics for flow installation and
591 * retrieval. Optional for all requests.
593 * These attributes follow the &struct ovs_header within the Generic Netlink
594 * payload for %OVS_FLOW_* commands.
597 OVS_FLOW_ATTR_UNSPEC,
598 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
599 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
600 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
601 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
602 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
603 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
604 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */
605 OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error
606 * logging should be suppressed. */
607 OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */
608 OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */
613 #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
616 * Omit attributes for notifications.
618 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath
619 * may omit the corresponding %OVS_FLOW_ATTR_* from the response.
621 #define OVS_UFID_F_OMIT_KEY (1 << 0)
622 #define OVS_UFID_F_OMIT_MASK (1 << 1)
623 #define OVS_UFID_F_OMIT_ACTIONS (1 << 2)
626 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
627 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
628 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
629 * %UINT32_MAX samples all packets and intermediate values sample intermediate
630 * fractions of packets.
631 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
632 * Actions are passed as nested attributes.
634 * Executes the specified actions with the given probability on a per-packet
637 enum ovs_sample_attr {
638 OVS_SAMPLE_ATTR_UNSPEC,
639 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
640 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
641 __OVS_SAMPLE_ATTR_MAX,
644 OVS_SAMPLE_ATTR_ARG /* struct sample_arg */
648 #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
652 bool exec; /* When true, actions in sample will not
653 * change flow keys. False otherwise.
655 u32 probability; /* Same value as
656 * 'OVS_SAMPLE_ATTR_PROBABILITY'.
662 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
663 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
664 * message should be sent. Required.
665 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
666 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
667 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
669 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall.
671 enum ovs_userspace_attr {
672 OVS_USERSPACE_ATTR_UNSPEC,
673 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
674 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
675 OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port
676 * to get tunnel info. */
677 OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */
678 __OVS_USERSPACE_ATTR_MAX
681 #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
683 struct ovs_action_trunc {
684 __u32 max_len; /* Max packet size in bytes. */
688 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
689 * @mpls_lse: MPLS label stack entry to push.
690 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
692 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
693 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
695 struct ovs_action_push_mpls {
697 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
701 * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action
703 * @mpls_lse: MPLS label stack entry to push.
704 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
705 * @tun_flags: MPLS tunnel attributes.
707 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
708 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
710 struct ovs_action_add_mpls {
712 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
716 #define OVS_MPLS_L3_TUNNEL_FLAG_MASK (1 << 0) /* Flag to specify the place of
717 * insertion of MPLS header.
718 * When false, the MPLS header
719 * will be inserted at the start
721 * When true, the MPLS header
722 * will be inserted at the start
727 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
728 * @vlan_tpid: Tag protocol identifier (TPID) to push.
729 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set
730 * (but it will not be set in the 802.1Q header that is pushed).
732 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
733 * The only acceptable TPID values are those that the kernel module also parses
734 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
735 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
737 struct ovs_action_push_vlan {
738 __be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */
739 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
742 /* Data path hash algorithm for computing Datapath hash.
744 * The algorithm type only specifies the fields in a flow
745 * will be used as part of the hash. Each datapath is free
746 * to use its own hash algorithm. The hash value will be
747 * opaque to the user space daemon.
754 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
755 * @hash_alg: Algorithm used to compute hash prior to recirculation.
756 * @hash_basis: basis used for computing hash.
758 struct ovs_action_hash {
759 __u32 hash_alg; /* One of ovs_hash_alg. */
764 * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
765 * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
766 * table. This allows future packets for the same connection to be identified
767 * as 'established' or 'related'. The flow key for the current packet will
768 * retain the pre-commit connection state.
769 * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
770 * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
771 * mask, the corresponding bit in the value is copied to the connection
772 * tracking mark field in the connection.
773 * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
774 * mask. For each bit set in the mask, the corresponding bit in the value is
775 * copied to the connection tracking label field in the connection.
776 * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
777 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address
778 * translation (NAT) on the packet.
779 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing
780 * nothing if the connection is already committed will check that the current
781 * packet is in conntrack entry's original direction. If directionality does
782 * not match, will delete the existing conntrack entry and commit a new one.
783 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types
784 * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to
785 * zero, the corresponding event type is not generated. Default behavior
786 * depends on system configuration, but typically all event types are
787 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot
788 * of events. Explicitly passing this attribute allows limiting the updates
789 * received to the events of interest. The bit 1 << IPCT_NEW, 1 <<
790 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to
791 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups,
792 * respectively. Remaining bits control the changes for which an event is
793 * delivered on the NFNLGRP_CONNTRACK_UPDATE group.
794 * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout.
798 OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */
799 OVS_CT_ATTR_ZONE, /* u16 zone id. */
800 OVS_CT_ATTR_MARK, /* mark to associate with this connection. */
801 OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */
802 OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of
803 related connections. */
804 OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */
805 OVS_CT_ATTR_FORCE_COMMIT, /* No argument */
806 OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */
807 OVS_CT_ATTR_TIMEOUT, /* Associate timeout with this connection for
808 * fine-grain timeout tuning. */
812 #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
815 * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT.
817 * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port).
818 * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination
819 * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be
820 * specified. Effective only for packets for ct_state NEW connections.
821 * Packets of committed connections are mangled by the NAT action according to
822 * the committed NAT type regardless of the flags specified. As a corollary, a
823 * NAT action without a NAT type flag will only mangle packets of committed
824 * connections. The following NAT attributes only apply for NEW
825 * (non-committed) connections, and they may be included only when the CT
826 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or
827 * @OVS_NAT_ATTR_DST is also included.
828 * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr
829 * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr
830 * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port)
831 * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port)
832 * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots
833 * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5)
834 * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping
842 OVS_NAT_ATTR_PROTO_MIN,
843 OVS_NAT_ATTR_PROTO_MAX,
844 OVS_NAT_ATTR_PERSISTENT,
845 OVS_NAT_ATTR_PROTO_HASH,
846 OVS_NAT_ATTR_PROTO_RANDOM,
850 #define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1)
853 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument.
854 * @addresses: Source and destination MAC addresses.
855 * @eth_type: Ethernet type
857 struct ovs_action_push_eth {
858 struct ovs_key_ethernet addresses;
862 * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN.
864 * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for.
865 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_*
866 * actions to apply if the packer length is greater than the specified
867 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
868 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_*
869 * actions to apply if the packer length is lesser or equal to the specified
870 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
872 enum ovs_check_pkt_len_attr {
873 OVS_CHECK_PKT_LEN_ATTR_UNSPEC,
874 OVS_CHECK_PKT_LEN_ATTR_PKT_LEN,
875 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER,
876 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL,
877 __OVS_CHECK_PKT_LEN_ATTR_MAX,
880 OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */
884 #define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1)
887 struct check_pkt_len_arg {
888 u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */
889 bool exec_for_greater; /* When true, actions in IF_GREATER will
890 * not change flow keys. False otherwise.
892 bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL
893 * will not change flow keys. False
900 * enum ovs_action_attr - Action types.
902 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
903 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size.
904 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
905 * %OVS_USERSPACE_ATTR_* attributes.
906 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The
907 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
909 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A
910 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value,
911 * and a mask. For every bit set in the mask, the corresponding bit value
912 * is copied from the value to the packet header field, rest of the bits are
913 * left unchanged. The non-masked value bits must be passed in as zeroes.
914 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
915 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
917 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
919 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
920 * the nested %OVS_SAMPLE_ATTR_* attributes.
921 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
922 * top of the packets MPLS label stack. Set the ethertype of the
923 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
924 * indicate the new packet contents.
925 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
926 * packet's MPLS label stack. Set the encapsulating frame's ethertype to
927 * indicate the new packet contents. This could potentially still be
928 * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there
929 * is no MPLS label stack, as determined by ethertype, no action is taken.
930 * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related
931 * entries in the flow key.
932 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the
934 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the
936 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet.
937 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet.
938 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet.
939 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the
940 * packet, or modify the packet (e.g., change the DSCP field).
941 * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of
942 * actions without affecting the original packet and key.
943 * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set
944 * of actions if greater than the specified packet length, else execute
945 * another set of actions.
946 * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the
947 * start of the packet or at the start of the l3 header depending on the value
948 * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS
951 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
952 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
953 * type may not be changed.
955 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated
956 * from the @OVS_ACTION_ATTR_SET.
959 enum ovs_action_attr {
960 OVS_ACTION_ATTR_UNSPEC,
961 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */
962 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
963 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */
964 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */
965 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */
966 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
967 OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */
968 OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */
969 OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */
970 OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */
971 OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including
972 * data immediately followed by a mask.
973 * The data must be zero for the unmasked
975 OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */
976 OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */
977 OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */
978 OVS_ACTION_ATTR_POP_ETH, /* No argument. */
979 OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */
980 OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */
981 OVS_ACTION_ATTR_POP_NSH, /* No argument. */
982 OVS_ACTION_ATTR_METER, /* u32 meter ID. */
983 OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */
984 OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */
985 OVS_ACTION_ATTR_ADD_MPLS, /* struct ovs_action_add_mpls. */
986 OVS_ACTION_ATTR_DEC_TTL, /* Nested OVS_DEC_TTL_ATTR_*. */
988 __OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted
992 OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked
993 * set action converted from
994 * OVS_ACTION_ATTR_SET. */
998 #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
1001 #define OVS_METER_FAMILY "ovs_meter"
1002 #define OVS_METER_MCGROUP "ovs_meter"
1003 #define OVS_METER_VERSION 0x1
1005 enum ovs_meter_cmd {
1006 OVS_METER_CMD_UNSPEC,
1007 OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */
1008 OVS_METER_CMD_SET, /* Add or modify a meter. */
1009 OVS_METER_CMD_DEL, /* Delete a meter. */
1010 OVS_METER_CMD_GET /* Get meter stats. */
1013 enum ovs_meter_attr {
1014 OVS_METER_ATTR_UNSPEC,
1015 OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */
1016 OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits
1017 * per second. Otherwise, units in
1018 * packets per second.
1020 OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */
1021 OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */
1022 OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */
1023 OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */
1024 OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */
1025 OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */
1027 __OVS_METER_ATTR_MAX
1030 #define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1)
1032 enum ovs_band_attr {
1033 OVS_BAND_ATTR_UNSPEC,
1034 OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */
1035 OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */
1036 OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */
1037 OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */
1041 #define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1)
1043 enum ovs_meter_band_type {
1044 OVS_METER_BAND_TYPE_UNSPEC,
1045 OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */
1046 __OVS_METER_BAND_TYPE_MAX
1049 #define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1)
1051 /* Conntrack limit */
1052 #define OVS_CT_LIMIT_FAMILY "ovs_ct_limit"
1053 #define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit"
1054 #define OVS_CT_LIMIT_VERSION 0x1
1056 enum ovs_ct_limit_cmd {
1057 OVS_CT_LIMIT_CMD_UNSPEC,
1058 OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */
1059 OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */
1060 OVS_CT_LIMIT_CMD_GET /* Get ct limit. */
1063 enum ovs_ct_limit_attr {
1064 OVS_CT_LIMIT_ATTR_UNSPEC,
1065 OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */
1066 __OVS_CT_LIMIT_ATTR_MAX
1069 #define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1)
1071 #define OVS_ZONE_LIMIT_DEFAULT_ZONE -1
1073 struct ovs_zone_limit {
1079 enum ovs_dec_ttl_attr {
1080 OVS_DEC_TTL_ATTR_UNSPEC,
1081 OVS_DEC_TTL_ATTR_ACTION, /* Nested struct nlattr */
1082 __OVS_DEC_TTL_ATTR_MAX
1085 #define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1)
1087 #endif /* _LINUX_OPENVSWITCH_H */