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_STATS: Statistics about packets that have passed through the
74 * datapath. Always present in notifications.
75 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
76 * datapath. Always present in notifications.
78 * These attributes follow the &struct ovs_header within the Generic Netlink
79 * payload for %OVS_DP_* commands.
81 enum ovs_datapath_attr {
83 OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
84 OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
85 OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
86 OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */
87 OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
89 OVS_DP_ATTR_MASKS_CACHE_SIZE,
93 #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)
96 __u64 n_hit; /* Number of flow table matches. */
97 __u64 n_missed; /* Number of flow table misses. */
98 __u64 n_lost; /* Number of misses not sent to userspace. */
99 __u64 n_flows; /* Number of flows present */
102 struct ovs_dp_megaflow_stats {
103 __u64 n_mask_hit; /* Number of masks used for flow lookups. */
104 __u32 n_masks; /* Number of masks for the datapath. */
105 __u32 pad0; /* Pad for future expension. */
106 __u64 n_cache_hit; /* Number of cache matches for flow lookups. */
107 __u64 pad1; /* Pad for future expension. */
110 struct ovs_vport_stats {
111 __u64 rx_packets; /* total packets received */
112 __u64 tx_packets; /* total packets transmitted */
113 __u64 rx_bytes; /* total bytes received */
114 __u64 tx_bytes; /* total bytes transmitted */
115 __u64 rx_errors; /* bad packets received */
116 __u64 tx_errors; /* packet transmit problems */
117 __u64 rx_dropped; /* no space in linux buffers */
118 __u64 tx_dropped; /* no space available in linux */
121 /* Allow last Netlink attribute to be unaligned */
122 #define OVS_DP_F_UNALIGNED (1 << 0)
124 /* Allow datapath to associate multiple Netlink PIDs to each vport */
125 #define OVS_DP_F_VPORT_PIDS (1 << 1)
127 /* Allow tc offload recirc sharing */
128 #define OVS_DP_F_TC_RECIRC_SHARING (1 << 2)
130 /* Fixed logical ports. */
131 #define OVSP_LOCAL ((__u32)0)
133 /* Packet transfer. */
135 #define OVS_PACKET_FAMILY "ovs_packet"
136 #define OVS_PACKET_VERSION 0x1
138 enum ovs_packet_cmd {
139 OVS_PACKET_CMD_UNSPEC,
141 /* Kernel-to-user notifications. */
142 OVS_PACKET_CMD_MISS, /* Flow table miss. */
143 OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
145 /* Userspace commands. */
146 OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
150 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
151 * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire
152 * packet as received, from the start of the Ethernet header onward. For
153 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
154 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
155 * the flow key extracted from the packet as originally received.
156 * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key
157 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
158 * userspace to adapt its flow setup strategy by comparing its notion of the
159 * flow key against the kernel's.
160 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used
161 * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
162 * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional
163 * %OVS_USERSPACE_ATTR_ACTIONS attribute.
164 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
165 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
166 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
168 * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION
169 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
170 * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the
171 * output port is actually a tunnel port. Contains the output tunnel key
172 * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
173 * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and
174 * @OVS_PACKET_ATTR_LEN: Packet size before truncation.
175 * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
177 * @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb).
179 * These attributes follow the &struct ovs_header within the Generic Netlink
180 * payload for %OVS_PACKET_* commands.
182 enum ovs_packet_attr {
183 OVS_PACKET_ATTR_UNSPEC,
184 OVS_PACKET_ATTR_PACKET, /* Packet data. */
185 OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
186 OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
187 OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
188 OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_*
190 OVS_PACKET_ATTR_UNUSED1,
191 OVS_PACKET_ATTR_UNUSED2,
192 OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe,
193 error logging should be suppressed. */
194 OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */
195 OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */
196 OVS_PACKET_ATTR_HASH, /* Packet hash. */
197 __OVS_PACKET_ATTR_MAX
200 #define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
204 #define OVS_VPORT_FAMILY "ovs_vport"
205 #define OVS_VPORT_MCGROUP "ovs_vport"
206 #define OVS_VPORT_VERSION 0x1
209 OVS_VPORT_CMD_UNSPEC,
216 enum ovs_vport_type {
217 OVS_VPORT_TYPE_UNSPEC,
218 OVS_VPORT_TYPE_NETDEV, /* network device */
219 OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
220 OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
221 OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
222 OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */
226 #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
229 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
230 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
231 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
233 * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device
234 * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
235 * plus a null terminator.
236 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
237 * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace
238 * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
239 * received on this port. If this is a single-element array of value 0,
240 * upcalls should not be sent.
241 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
242 * packets sent or received through the vport.
244 * These attributes follow the &struct ovs_header within the Generic Netlink
245 * payload for %OVS_VPORT_* commands.
247 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
248 * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is
249 * optional; if not specified a free port number is automatically selected.
250 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
253 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
254 * look up the vport to operate on; otherwise dp_idx from the &struct
255 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
257 enum ovs_vport_attr {
258 OVS_VPORT_ATTR_UNSPEC,
259 OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */
260 OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */
261 OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
262 OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
263 OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
264 /* receiving upcalls */
265 OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
267 OVS_VPORT_ATTR_IFINDEX,
268 OVS_VPORT_ATTR_NETNSID,
272 #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
275 OVS_VXLAN_EXT_UNSPEC,
276 OVS_VXLAN_EXT_GBP, /* Flag or __u32 */
280 #define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1)
283 /* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
286 OVS_TUNNEL_ATTR_UNSPEC,
287 OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
288 OVS_TUNNEL_ATTR_EXTENSION,
289 __OVS_TUNNEL_ATTR_MAX
292 #define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
296 #define OVS_FLOW_FAMILY "ovs_flow"
297 #define OVS_FLOW_MCGROUP "ovs_flow"
298 #define OVS_FLOW_VERSION 0x1
308 struct ovs_flow_stats {
309 __u64 n_packets; /* Number of matched packets. */
310 __u64 n_bytes; /* Number of matched bytes. */
315 OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */
316 OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */
317 OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */
318 OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */
319 OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */
320 OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */
321 OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */
322 OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */
323 OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */
324 OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */
325 OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */
326 OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */
327 OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */
328 OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
329 OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */
330 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
331 OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
332 OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */
333 OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash
334 is not computed by the datapath. */
335 OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
336 OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls.
337 * The implementation may restrict
338 * the accepted length of the array. */
339 OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */
340 OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */
341 OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */
342 OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */
343 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */
344 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */
345 OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */
348 OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */
353 #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
355 enum ovs_tunnel_key_attr {
356 /* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
357 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
358 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
359 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
360 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
361 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
362 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
363 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
364 OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
365 OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
366 OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
367 OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
368 OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */
369 OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */
370 OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */
371 OVS_TUNNEL_KEY_ATTR_PAD,
372 OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */
373 OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/
374 __OVS_TUNNEL_KEY_ATTR_MAX
377 #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
380 * enum ovs_frag_type - IPv4 and IPv6 fragment type
381 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
382 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
383 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
385 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
395 #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
397 struct ovs_key_ethernet {
398 __u8 eth_src[ETH_ALEN];
399 __u8 eth_dst[ETH_ALEN];
402 struct ovs_key_mpls {
406 struct ovs_key_ipv4 {
412 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */
415 struct ovs_key_ipv6 {
418 __be32 ipv6_label; /* 20-bits in least-significant bits. */
422 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
435 struct ovs_key_sctp {
440 struct ovs_key_icmp {
445 struct ovs_key_icmpv6 {
454 __u8 arp_sha[ETH_ALEN];
455 __u8 arp_tha[ETH_ALEN];
460 __u8 nd_sll[ETH_ALEN];
461 __u8 nd_tll[ETH_ALEN];
464 #define OVS_CT_LABELS_LEN_32 4
465 #define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32))
466 struct ovs_key_ct_labels {
468 __u8 ct_labels[OVS_CT_LABELS_LEN];
469 __u32 ct_labels_32[OVS_CT_LABELS_LEN_32];
473 /* OVS_KEY_ATTR_CT_STATE flags */
474 #define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */
475 #define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */
476 #define OVS_CS_F_RELATED 0x04 /* Related to an established
478 #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */
479 #define OVS_CS_F_INVALID 0x10 /* Could not track connection. */
480 #define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */
481 #define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was
484 #define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port
485 * was mangled by NAT.
488 #define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
490 struct ovs_key_ct_tuple_ipv4 {
498 struct ovs_key_ct_tuple_ipv6 {
506 enum ovs_nsh_key_attr {
507 OVS_NSH_KEY_ATTR_UNSPEC,
508 OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */
509 OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */
510 OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */
511 __OVS_NSH_KEY_ATTR_MAX
514 #define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1)
516 struct ovs_nsh_key_base {
524 #define NSH_MD1_CONTEXT_SIZE 4
526 struct ovs_nsh_key_md1 {
527 __be32 context[NSH_MD1_CONTEXT_SIZE];
531 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
532 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
533 * key. Always present in notifications. Required for all requests (except
535 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
536 * the actions to take for packets that match the key. Always present in
537 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for
538 * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without
539 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions,
540 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given.
541 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
542 * flow. Present in notifications if the stats would be nonzero. Ignored in
544 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
545 * TCP flags seen on packets in this flow. Only present in notifications for
546 * TCP flows, and only if it would be nonzero. Ignored in requests.
547 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
548 * the system monotonic clock, at which a packet was last processed for this
549 * flow. Only present in notifications if a packet has been processed for this
550 * flow. Ignored in requests.
551 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
552 * last-used time, accumulated TCP flags, and statistics for this flow.
553 * Otherwise ignored in requests. Never present in notifications.
554 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
555 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
556 * match with corresponding flow key bit, while mask bit value '0' specifies
557 * a wildcarded match. Omitting attribute is treated as wildcarding all
558 * corresponding fields. Optional for all requests. If not present,
559 * all flow key bits are exact match bits.
560 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique
561 * identifier for the flow. Causes the flow to be indexed by this value rather
562 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all
563 * requests. Present in notifications if the flow was created with this
565 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_*
566 * flags that provide alternative semantics for flow installation and
567 * retrieval. Optional for all requests.
569 * These attributes follow the &struct ovs_header within the Generic Netlink
570 * payload for %OVS_FLOW_* commands.
573 OVS_FLOW_ATTR_UNSPEC,
574 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
575 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
576 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
577 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
578 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
579 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
580 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */
581 OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error
582 * logging should be suppressed. */
583 OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */
584 OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */
589 #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
592 * Omit attributes for notifications.
594 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath
595 * may omit the corresponding %OVS_FLOW_ATTR_* from the response.
597 #define OVS_UFID_F_OMIT_KEY (1 << 0)
598 #define OVS_UFID_F_OMIT_MASK (1 << 1)
599 #define OVS_UFID_F_OMIT_ACTIONS (1 << 2)
602 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
603 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
604 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
605 * %UINT32_MAX samples all packets and intermediate values sample intermediate
606 * fractions of packets.
607 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
608 * Actions are passed as nested attributes.
610 * Executes the specified actions with the given probability on a per-packet
613 enum ovs_sample_attr {
614 OVS_SAMPLE_ATTR_UNSPEC,
615 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
616 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
617 __OVS_SAMPLE_ATTR_MAX,
620 OVS_SAMPLE_ATTR_ARG /* struct sample_arg */
624 #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
628 bool exec; /* When true, actions in sample will not
629 * change flow keys. False otherwise.
631 u32 probability; /* Same value as
632 * 'OVS_SAMPLE_ATTR_PROBABILITY'.
638 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
639 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
640 * message should be sent. Required.
641 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
642 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
643 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
645 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall.
647 enum ovs_userspace_attr {
648 OVS_USERSPACE_ATTR_UNSPEC,
649 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
650 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
651 OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port
652 * to get tunnel info. */
653 OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */
654 __OVS_USERSPACE_ATTR_MAX
657 #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
659 struct ovs_action_trunc {
660 __u32 max_len; /* Max packet size in bytes. */
664 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
665 * @mpls_lse: MPLS label stack entry to push.
666 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
668 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
669 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
671 struct ovs_action_push_mpls {
673 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
677 * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action
679 * @mpls_lse: MPLS label stack entry to push.
680 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
681 * @tun_flags: MPLS tunnel attributes.
683 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
684 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
686 struct ovs_action_add_mpls {
688 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
692 #define OVS_MPLS_L3_TUNNEL_FLAG_MASK (1 << 0) /* Flag to specify the place of
693 * insertion of MPLS header.
694 * When false, the MPLS header
695 * will be inserted at the start
697 * When true, the MPLS header
698 * will be inserted at the start
703 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
704 * @vlan_tpid: Tag protocol identifier (TPID) to push.
705 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set
706 * (but it will not be set in the 802.1Q header that is pushed).
708 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
709 * The only acceptable TPID values are those that the kernel module also parses
710 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
711 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
713 struct ovs_action_push_vlan {
714 __be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */
715 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
718 /* Data path hash algorithm for computing Datapath hash.
720 * The algorithm type only specifies the fields in a flow
721 * will be used as part of the hash. Each datapath is free
722 * to use its own hash algorithm. The hash value will be
723 * opaque to the user space daemon.
730 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
731 * @hash_alg: Algorithm used to compute hash prior to recirculation.
732 * @hash_basis: basis used for computing hash.
734 struct ovs_action_hash {
735 __u32 hash_alg; /* One of ovs_hash_alg. */
740 * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
741 * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
742 * table. This allows future packets for the same connection to be identified
743 * as 'established' or 'related'. The flow key for the current packet will
744 * retain the pre-commit connection state.
745 * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
746 * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
747 * mask, the corresponding bit in the value is copied to the connection
748 * tracking mark field in the connection.
749 * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
750 * mask. For each bit set in the mask, the corresponding bit in the value is
751 * copied to the connection tracking label field in the connection.
752 * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
753 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address
754 * translation (NAT) on the packet.
755 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing
756 * nothing if the connection is already committed will check that the current
757 * packet is in conntrack entry's original direction. If directionality does
758 * not match, will delete the existing conntrack entry and commit a new one.
759 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types
760 * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to
761 * zero, the corresponding event type is not generated. Default behavior
762 * depends on system configuration, but typically all event types are
763 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot
764 * of events. Explicitly passing this attribute allows limiting the updates
765 * received to the events of interest. The bit 1 << IPCT_NEW, 1 <<
766 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to
767 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups,
768 * respectively. Remaining bits control the changes for which an event is
769 * delivered on the NFNLGRP_CONNTRACK_UPDATE group.
770 * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout.
774 OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */
775 OVS_CT_ATTR_ZONE, /* u16 zone id. */
776 OVS_CT_ATTR_MARK, /* mark to associate with this connection. */
777 OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */
778 OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of
779 related connections. */
780 OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */
781 OVS_CT_ATTR_FORCE_COMMIT, /* No argument */
782 OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */
783 OVS_CT_ATTR_TIMEOUT, /* Associate timeout with this connection for
784 * fine-grain timeout tuning. */
788 #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
791 * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT.
793 * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port).
794 * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination
795 * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be
796 * specified. Effective only for packets for ct_state NEW connections.
797 * Packets of committed connections are mangled by the NAT action according to
798 * the committed NAT type regardless of the flags specified. As a corollary, a
799 * NAT action without a NAT type flag will only mangle packets of committed
800 * connections. The following NAT attributes only apply for NEW
801 * (non-committed) connections, and they may be included only when the CT
802 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or
803 * @OVS_NAT_ATTR_DST is also included.
804 * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr
805 * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr
806 * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port)
807 * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port)
808 * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots
809 * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5)
810 * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping
818 OVS_NAT_ATTR_PROTO_MIN,
819 OVS_NAT_ATTR_PROTO_MAX,
820 OVS_NAT_ATTR_PERSISTENT,
821 OVS_NAT_ATTR_PROTO_HASH,
822 OVS_NAT_ATTR_PROTO_RANDOM,
826 #define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1)
829 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument.
830 * @addresses: Source and destination MAC addresses.
831 * @eth_type: Ethernet type
833 struct ovs_action_push_eth {
834 struct ovs_key_ethernet addresses;
838 * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN.
840 * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for.
841 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_*
842 * actions to apply if the packer length is greater than the specified
843 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
844 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_*
845 * actions to apply if the packer length is lesser or equal to the specified
846 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
848 enum ovs_check_pkt_len_attr {
849 OVS_CHECK_PKT_LEN_ATTR_UNSPEC,
850 OVS_CHECK_PKT_LEN_ATTR_PKT_LEN,
851 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER,
852 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL,
853 __OVS_CHECK_PKT_LEN_ATTR_MAX,
856 OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */
860 #define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1)
863 struct check_pkt_len_arg {
864 u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */
865 bool exec_for_greater; /* When true, actions in IF_GREATER will
866 * not change flow keys. False otherwise.
868 bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL
869 * will not change flow keys. False
876 * enum ovs_action_attr - Action types.
878 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
879 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size.
880 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
881 * %OVS_USERSPACE_ATTR_* attributes.
882 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The
883 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
885 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A
886 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value,
887 * and a mask. For every bit set in the mask, the corresponding bit value
888 * is copied from the value to the packet header field, rest of the bits are
889 * left unchanged. The non-masked value bits must be passed in as zeroes.
890 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
891 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
893 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
895 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
896 * the nested %OVS_SAMPLE_ATTR_* attributes.
897 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
898 * top of the packets MPLS label stack. Set the ethertype of the
899 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
900 * indicate the new packet contents.
901 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
902 * packet's MPLS label stack. Set the encapsulating frame's ethertype to
903 * indicate the new packet contents. This could potentially still be
904 * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there
905 * is no MPLS label stack, as determined by ethertype, no action is taken.
906 * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related
907 * entries in the flow key.
908 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the
910 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the
912 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet.
913 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet.
914 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet.
915 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the
916 * packet, or modify the packet (e.g., change the DSCP field).
917 * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of
918 * actions without affecting the original packet and key.
919 * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set
920 * of actions if greater than the specified packet length, else execute
921 * another set of actions.
922 * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the
923 * start of the packet or at the start of the l3 header depending on the value
924 * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS
927 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
928 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
929 * type may not be changed.
931 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated
932 * from the @OVS_ACTION_ATTR_SET.
935 enum ovs_action_attr {
936 OVS_ACTION_ATTR_UNSPEC,
937 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */
938 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
939 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */
940 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */
941 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */
942 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
943 OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */
944 OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */
945 OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */
946 OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */
947 OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including
948 * data immediately followed by a mask.
949 * The data must be zero for the unmasked
951 OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */
952 OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */
953 OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */
954 OVS_ACTION_ATTR_POP_ETH, /* No argument. */
955 OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */
956 OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */
957 OVS_ACTION_ATTR_POP_NSH, /* No argument. */
958 OVS_ACTION_ATTR_METER, /* u32 meter ID. */
959 OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */
960 OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */
961 OVS_ACTION_ATTR_ADD_MPLS, /* struct ovs_action_add_mpls. */
962 OVS_ACTION_ATTR_DEC_TTL, /* Nested OVS_DEC_TTL_ATTR_*. */
964 __OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted
968 OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked
969 * set action converted from
970 * OVS_ACTION_ATTR_SET. */
974 #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
977 #define OVS_METER_FAMILY "ovs_meter"
978 #define OVS_METER_MCGROUP "ovs_meter"
979 #define OVS_METER_VERSION 0x1
982 OVS_METER_CMD_UNSPEC,
983 OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */
984 OVS_METER_CMD_SET, /* Add or modify a meter. */
985 OVS_METER_CMD_DEL, /* Delete a meter. */
986 OVS_METER_CMD_GET /* Get meter stats. */
989 enum ovs_meter_attr {
990 OVS_METER_ATTR_UNSPEC,
991 OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */
992 OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits
993 * per second. Otherwise, units in
994 * packets per second.
996 OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */
997 OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */
998 OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */
999 OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */
1000 OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */
1001 OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */
1003 __OVS_METER_ATTR_MAX
1006 #define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1)
1008 enum ovs_band_attr {
1009 OVS_BAND_ATTR_UNSPEC,
1010 OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */
1011 OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */
1012 OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */
1013 OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */
1017 #define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1)
1019 enum ovs_meter_band_type {
1020 OVS_METER_BAND_TYPE_UNSPEC,
1021 OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */
1022 __OVS_METER_BAND_TYPE_MAX
1025 #define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1)
1027 /* Conntrack limit */
1028 #define OVS_CT_LIMIT_FAMILY "ovs_ct_limit"
1029 #define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit"
1030 #define OVS_CT_LIMIT_VERSION 0x1
1032 enum ovs_ct_limit_cmd {
1033 OVS_CT_LIMIT_CMD_UNSPEC,
1034 OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */
1035 OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */
1036 OVS_CT_LIMIT_CMD_GET /* Get ct limit. */
1039 enum ovs_ct_limit_attr {
1040 OVS_CT_LIMIT_ATTR_UNSPEC,
1041 OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */
1042 __OVS_CT_LIMIT_ATTR_MAX
1045 #define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1)
1047 #define OVS_ZONE_LIMIT_DEFAULT_ZONE -1
1049 struct ovs_zone_limit {
1055 enum ovs_dec_ttl_attr {
1056 OVS_DEC_TTL_ATTR_UNSPEC,
1057 OVS_DEC_TTL_ATTR_ACTION, /* Nested struct nlattr */
1058 __OVS_DEC_TTL_ATTR_MAX
1061 #define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1)
1063 #endif /* _LINUX_OPENVSWITCH_H */