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_* */
356 OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */
361 #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
363 enum ovs_tunnel_key_attr {
364 /* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
365 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
366 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
367 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
368 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
369 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
370 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
371 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
372 OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
373 OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
374 OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
375 OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
376 OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */
377 OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */
378 OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */
379 OVS_TUNNEL_KEY_ATTR_PAD,
380 OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */
381 OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/
382 __OVS_TUNNEL_KEY_ATTR_MAX
385 #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
388 * enum ovs_frag_type - IPv4 and IPv6 fragment type
389 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
390 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
391 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
393 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
403 #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
405 struct ovs_key_ethernet {
406 __u8 eth_src[ETH_ALEN];
407 __u8 eth_dst[ETH_ALEN];
410 struct ovs_key_mpls {
414 struct ovs_key_ipv4 {
420 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */
423 struct ovs_key_ipv6 {
426 __be32 ipv6_label; /* 20-bits in least-significant bits. */
430 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
443 struct ovs_key_sctp {
448 struct ovs_key_icmp {
453 struct ovs_key_icmpv6 {
462 __u8 arp_sha[ETH_ALEN];
463 __u8 arp_tha[ETH_ALEN];
468 __u8 nd_sll[ETH_ALEN];
469 __u8 nd_tll[ETH_ALEN];
472 #define OVS_CT_LABELS_LEN_32 4
473 #define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32))
474 struct ovs_key_ct_labels {
476 __u8 ct_labels[OVS_CT_LABELS_LEN];
477 __u32 ct_labels_32[OVS_CT_LABELS_LEN_32];
481 /* OVS_KEY_ATTR_CT_STATE flags */
482 #define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */
483 #define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */
484 #define OVS_CS_F_RELATED 0x04 /* Related to an established
486 #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */
487 #define OVS_CS_F_INVALID 0x10 /* Could not track connection. */
488 #define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */
489 #define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was
492 #define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port
493 * was mangled by NAT.
496 #define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
498 struct ovs_key_ct_tuple_ipv4 {
506 struct ovs_key_ct_tuple_ipv6 {
514 enum ovs_nsh_key_attr {
515 OVS_NSH_KEY_ATTR_UNSPEC,
516 OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */
517 OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */
518 OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */
519 __OVS_NSH_KEY_ATTR_MAX
522 #define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1)
524 struct ovs_nsh_key_base {
532 #define NSH_MD1_CONTEXT_SIZE 4
534 struct ovs_nsh_key_md1 {
535 __be32 context[NSH_MD1_CONTEXT_SIZE];
539 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
540 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
541 * key. Always present in notifications. Required for all requests (except
543 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
544 * the actions to take for packets that match the key. Always present in
545 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for
546 * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without
547 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions,
548 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given.
549 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
550 * flow. Present in notifications if the stats would be nonzero. Ignored in
552 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
553 * TCP flags seen on packets in this flow. Only present in notifications for
554 * TCP flows, and only if it would be nonzero. Ignored in requests.
555 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
556 * the system monotonic clock, at which a packet was last processed for this
557 * flow. Only present in notifications if a packet has been processed for this
558 * flow. Ignored in requests.
559 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
560 * last-used time, accumulated TCP flags, and statistics for this flow.
561 * Otherwise ignored in requests. Never present in notifications.
562 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
563 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
564 * match with corresponding flow key bit, while mask bit value '0' specifies
565 * a wildcarded match. Omitting attribute is treated as wildcarding all
566 * corresponding fields. Optional for all requests. If not present,
567 * all flow key bits are exact match bits.
568 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique
569 * identifier for the flow. Causes the flow to be indexed by this value rather
570 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all
571 * requests. Present in notifications if the flow was created with this
573 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_*
574 * flags that provide alternative semantics for flow installation and
575 * retrieval. Optional for all requests.
577 * These attributes follow the &struct ovs_header within the Generic Netlink
578 * payload for %OVS_FLOW_* commands.
581 OVS_FLOW_ATTR_UNSPEC,
582 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
583 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
584 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
585 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
586 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
587 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
588 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */
589 OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error
590 * logging should be suppressed. */
591 OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */
592 OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */
597 #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
600 * Omit attributes for notifications.
602 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath
603 * may omit the corresponding %OVS_FLOW_ATTR_* from the response.
605 #define OVS_UFID_F_OMIT_KEY (1 << 0)
606 #define OVS_UFID_F_OMIT_MASK (1 << 1)
607 #define OVS_UFID_F_OMIT_ACTIONS (1 << 2)
610 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
611 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
612 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
613 * %UINT32_MAX samples all packets and intermediate values sample intermediate
614 * fractions of packets.
615 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
616 * Actions are passed as nested attributes.
618 * Executes the specified actions with the given probability on a per-packet
621 enum ovs_sample_attr {
622 OVS_SAMPLE_ATTR_UNSPEC,
623 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
624 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
625 __OVS_SAMPLE_ATTR_MAX,
628 OVS_SAMPLE_ATTR_ARG /* struct sample_arg */
632 #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
636 bool exec; /* When true, actions in sample will not
637 * change flow keys. False otherwise.
639 u32 probability; /* Same value as
640 * 'OVS_SAMPLE_ATTR_PROBABILITY'.
646 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
647 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
648 * message should be sent. Required.
649 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
650 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
651 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
653 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall.
655 enum ovs_userspace_attr {
656 OVS_USERSPACE_ATTR_UNSPEC,
657 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
658 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
659 OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port
660 * to get tunnel info. */
661 OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */
662 __OVS_USERSPACE_ATTR_MAX
665 #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
667 struct ovs_action_trunc {
668 __u32 max_len; /* Max packet size in bytes. */
672 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
673 * @mpls_lse: MPLS label stack entry to push.
674 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
676 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
677 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
679 struct ovs_action_push_mpls {
681 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
685 * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action
687 * @mpls_lse: MPLS label stack entry to push.
688 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
689 * @tun_flags: MPLS tunnel attributes.
691 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
692 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
694 struct ovs_action_add_mpls {
696 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
700 #define OVS_MPLS_L3_TUNNEL_FLAG_MASK (1 << 0) /* Flag to specify the place of
701 * insertion of MPLS header.
702 * When false, the MPLS header
703 * will be inserted at the start
705 * When true, the MPLS header
706 * will be inserted at the start
711 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
712 * @vlan_tpid: Tag protocol identifier (TPID) to push.
713 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set
714 * (but it will not be set in the 802.1Q header that is pushed).
716 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
717 * The only acceptable TPID values are those that the kernel module also parses
718 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
719 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
721 struct ovs_action_push_vlan {
722 __be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */
723 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
726 /* Data path hash algorithm for computing Datapath hash.
728 * The algorithm type only specifies the fields in a flow
729 * will be used as part of the hash. Each datapath is free
730 * to use its own hash algorithm. The hash value will be
731 * opaque to the user space daemon.
738 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
739 * @hash_alg: Algorithm used to compute hash prior to recirculation.
740 * @hash_basis: basis used for computing hash.
742 struct ovs_action_hash {
743 __u32 hash_alg; /* One of ovs_hash_alg. */
748 * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
749 * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
750 * table. This allows future packets for the same connection to be identified
751 * as 'established' or 'related'. The flow key for the current packet will
752 * retain the pre-commit connection state.
753 * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
754 * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
755 * mask, the corresponding bit in the value is copied to the connection
756 * tracking mark field in the connection.
757 * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
758 * mask. For each bit set in the mask, the corresponding bit in the value is
759 * copied to the connection tracking label field in the connection.
760 * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
761 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address
762 * translation (NAT) on the packet.
763 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing
764 * nothing if the connection is already committed will check that the current
765 * packet is in conntrack entry's original direction. If directionality does
766 * not match, will delete the existing conntrack entry and commit a new one.
767 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types
768 * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to
769 * zero, the corresponding event type is not generated. Default behavior
770 * depends on system configuration, but typically all event types are
771 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot
772 * of events. Explicitly passing this attribute allows limiting the updates
773 * received to the events of interest. The bit 1 << IPCT_NEW, 1 <<
774 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to
775 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups,
776 * respectively. Remaining bits control the changes for which an event is
777 * delivered on the NFNLGRP_CONNTRACK_UPDATE group.
778 * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout.
782 OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */
783 OVS_CT_ATTR_ZONE, /* u16 zone id. */
784 OVS_CT_ATTR_MARK, /* mark to associate with this connection. */
785 OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */
786 OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of
787 related connections. */
788 OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */
789 OVS_CT_ATTR_FORCE_COMMIT, /* No argument */
790 OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */
791 OVS_CT_ATTR_TIMEOUT, /* Associate timeout with this connection for
792 * fine-grain timeout tuning. */
796 #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
799 * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT.
801 * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port).
802 * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination
803 * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be
804 * specified. Effective only for packets for ct_state NEW connections.
805 * Packets of committed connections are mangled by the NAT action according to
806 * the committed NAT type regardless of the flags specified. As a corollary, a
807 * NAT action without a NAT type flag will only mangle packets of committed
808 * connections. The following NAT attributes only apply for NEW
809 * (non-committed) connections, and they may be included only when the CT
810 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or
811 * @OVS_NAT_ATTR_DST is also included.
812 * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr
813 * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr
814 * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port)
815 * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port)
816 * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots
817 * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5)
818 * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping
826 OVS_NAT_ATTR_PROTO_MIN,
827 OVS_NAT_ATTR_PROTO_MAX,
828 OVS_NAT_ATTR_PERSISTENT,
829 OVS_NAT_ATTR_PROTO_HASH,
830 OVS_NAT_ATTR_PROTO_RANDOM,
834 #define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1)
837 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument.
838 * @addresses: Source and destination MAC addresses.
839 * @eth_type: Ethernet type
841 struct ovs_action_push_eth {
842 struct ovs_key_ethernet addresses;
846 * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN.
848 * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for.
849 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_*
850 * actions to apply if the packer length is greater than the specified
851 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
852 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_*
853 * actions to apply if the packer length is lesser or equal to the specified
854 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN.
856 enum ovs_check_pkt_len_attr {
857 OVS_CHECK_PKT_LEN_ATTR_UNSPEC,
858 OVS_CHECK_PKT_LEN_ATTR_PKT_LEN,
859 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER,
860 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL,
861 __OVS_CHECK_PKT_LEN_ATTR_MAX,
864 OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */
868 #define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1)
871 struct check_pkt_len_arg {
872 u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */
873 bool exec_for_greater; /* When true, actions in IF_GREATER will
874 * not change flow keys. False otherwise.
876 bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL
877 * will not change flow keys. False
884 * enum ovs_action_attr - Action types.
886 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
887 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size.
888 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
889 * %OVS_USERSPACE_ATTR_* attributes.
890 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The
891 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
893 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A
894 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value,
895 * and a mask. For every bit set in the mask, the corresponding bit value
896 * is copied from the value to the packet header field, rest of the bits are
897 * left unchanged. The non-masked value bits must be passed in as zeroes.
898 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
899 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
901 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
903 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
904 * the nested %OVS_SAMPLE_ATTR_* attributes.
905 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
906 * top of the packets MPLS label stack. Set the ethertype of the
907 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
908 * indicate the new packet contents.
909 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
910 * packet's MPLS label stack. Set the encapsulating frame's ethertype to
911 * indicate the new packet contents. This could potentially still be
912 * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there
913 * is no MPLS label stack, as determined by ethertype, no action is taken.
914 * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related
915 * entries in the flow key.
916 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the
918 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the
920 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet.
921 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet.
922 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet.
923 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the
924 * packet, or modify the packet (e.g., change the DSCP field).
925 * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of
926 * actions without affecting the original packet and key.
927 * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set
928 * of actions if greater than the specified packet length, else execute
929 * another set of actions.
930 * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the
931 * start of the packet or at the start of the l3 header depending on the value
932 * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS
935 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
936 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
937 * type may not be changed.
939 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated
940 * from the @OVS_ACTION_ATTR_SET.
943 enum ovs_action_attr {
944 OVS_ACTION_ATTR_UNSPEC,
945 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */
946 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
947 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */
948 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */
949 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */
950 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
951 OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */
952 OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */
953 OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */
954 OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */
955 OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including
956 * data immediately followed by a mask.
957 * The data must be zero for the unmasked
959 OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */
960 OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */
961 OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */
962 OVS_ACTION_ATTR_POP_ETH, /* No argument. */
963 OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */
964 OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */
965 OVS_ACTION_ATTR_POP_NSH, /* No argument. */
966 OVS_ACTION_ATTR_METER, /* u32 meter ID. */
967 OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */
968 OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */
969 OVS_ACTION_ATTR_ADD_MPLS, /* struct ovs_action_add_mpls. */
970 OVS_ACTION_ATTR_DEC_TTL, /* Nested OVS_DEC_TTL_ATTR_*. */
972 __OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted
976 OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked
977 * set action converted from
978 * OVS_ACTION_ATTR_SET. */
982 #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
985 #define OVS_METER_FAMILY "ovs_meter"
986 #define OVS_METER_MCGROUP "ovs_meter"
987 #define OVS_METER_VERSION 0x1
990 OVS_METER_CMD_UNSPEC,
991 OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */
992 OVS_METER_CMD_SET, /* Add or modify a meter. */
993 OVS_METER_CMD_DEL, /* Delete a meter. */
994 OVS_METER_CMD_GET /* Get meter stats. */
997 enum ovs_meter_attr {
998 OVS_METER_ATTR_UNSPEC,
999 OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */
1000 OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits
1001 * per second. Otherwise, units in
1002 * packets per second.
1004 OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */
1005 OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */
1006 OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */
1007 OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */
1008 OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */
1009 OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */
1011 __OVS_METER_ATTR_MAX
1014 #define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1)
1016 enum ovs_band_attr {
1017 OVS_BAND_ATTR_UNSPEC,
1018 OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */
1019 OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */
1020 OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */
1021 OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */
1025 #define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1)
1027 enum ovs_meter_band_type {
1028 OVS_METER_BAND_TYPE_UNSPEC,
1029 OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */
1030 __OVS_METER_BAND_TYPE_MAX
1033 #define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1)
1035 /* Conntrack limit */
1036 #define OVS_CT_LIMIT_FAMILY "ovs_ct_limit"
1037 #define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit"
1038 #define OVS_CT_LIMIT_VERSION 0x1
1040 enum ovs_ct_limit_cmd {
1041 OVS_CT_LIMIT_CMD_UNSPEC,
1042 OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */
1043 OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */
1044 OVS_CT_LIMIT_CMD_GET /* Get ct limit. */
1047 enum ovs_ct_limit_attr {
1048 OVS_CT_LIMIT_ATTR_UNSPEC,
1049 OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */
1050 __OVS_CT_LIMIT_ATTR_MAX
1053 #define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1)
1055 #define OVS_ZONE_LIMIT_DEFAULT_ZONE -1
1057 struct ovs_zone_limit {
1063 enum ovs_dec_ttl_attr {
1064 OVS_DEC_TTL_ATTR_UNSPEC,
1065 OVS_DEC_TTL_ATTR_ACTION, /* Nested struct nlattr */
1066 __OVS_DEC_TTL_ATTR_MAX
1069 #define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1)
1071 #endif /* _LINUX_OPENVSWITCH_H */