Linux kernel mirror (for testing)
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1
2/*
3 * Copyright (c) 2007-2013 Nicira, Inc.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public
7 * License as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA
18 */
19
20#ifndef _UAPI__LINUX_OPENVSWITCH_H
21#define _UAPI__LINUX_OPENVSWITCH_H 1
22
23#include <linux/types.h>
24#include <linux/if_ether.h>
25
26/**
27 * struct ovs_header - header for OVS Generic Netlink messages.
28 * @dp_ifindex: ifindex of local port for datapath (0 to make a request not
29 * specific to a datapath).
30 *
31 * Attributes following the header are specific to a particular OVS Generic
32 * Netlink family, but all of the OVS families use this header.
33 */
34
35struct ovs_header {
36 int dp_ifindex;
37};
38
39/* Datapaths. */
40
41#define OVS_DATAPATH_FAMILY "ovs_datapath"
42#define OVS_DATAPATH_MCGROUP "ovs_datapath"
43
44/* V2:
45 * - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
46 * when creating the datapath.
47 */
48#define OVS_DATAPATH_VERSION 2
49
50/* First OVS datapath version to support features */
51#define OVS_DP_VER_FEATURES 2
52
53enum ovs_datapath_cmd {
54 OVS_DP_CMD_UNSPEC,
55 OVS_DP_CMD_NEW,
56 OVS_DP_CMD_DEL,
57 OVS_DP_CMD_GET,
58 OVS_DP_CMD_SET
59};
60
61/**
62 * enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
63 * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
64 * port". This is the name of the network device whose dp_ifindex is given in
65 * the &struct ovs_header. Always present in notifications. Required in
66 * %OVS_DP_NEW requests. May be used as an alternative to specifying
67 * dp_ifindex in other requests (with a dp_ifindex of 0).
68 * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
69 * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on
70 * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
71 * not be sent.
72 * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
73 * datapath. Always present in notifications.
74 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
75 * datapath. Always present in notifications.
76 *
77 * These attributes follow the &struct ovs_header within the Generic Netlink
78 * payload for %OVS_DP_* commands.
79 */
80enum ovs_datapath_attr {
81 OVS_DP_ATTR_UNSPEC,
82 OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
83 OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
84 OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
85 OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */
86 OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
87 __OVS_DP_ATTR_MAX
88};
89
90#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)
91
92struct ovs_dp_stats {
93 __u64 n_hit; /* Number of flow table matches. */
94 __u64 n_missed; /* Number of flow table misses. */
95 __u64 n_lost; /* Number of misses not sent to userspace. */
96 __u64 n_flows; /* Number of flows present */
97};
98
99struct ovs_dp_megaflow_stats {
100 __u64 n_mask_hit; /* Number of masks used for flow lookups. */
101 __u32 n_masks; /* Number of masks for the datapath. */
102 __u32 pad0; /* Pad for future expension. */
103 __u64 pad1; /* Pad for future expension. */
104 __u64 pad2; /* Pad for future expension. */
105};
106
107struct ovs_vport_stats {
108 __u64 rx_packets; /* total packets received */
109 __u64 tx_packets; /* total packets transmitted */
110 __u64 rx_bytes; /* total bytes received */
111 __u64 tx_bytes; /* total bytes transmitted */
112 __u64 rx_errors; /* bad packets received */
113 __u64 tx_errors; /* packet transmit problems */
114 __u64 rx_dropped; /* no space in linux buffers */
115 __u64 tx_dropped; /* no space available in linux */
116};
117
118/* Allow last Netlink attribute to be unaligned */
119#define OVS_DP_F_UNALIGNED (1 << 0)
120
121/* Fixed logical ports. */
122#define OVSP_LOCAL ((__u32)0)
123
124/* Packet transfer. */
125
126#define OVS_PACKET_FAMILY "ovs_packet"
127#define OVS_PACKET_VERSION 0x1
128
129enum ovs_packet_cmd {
130 OVS_PACKET_CMD_UNSPEC,
131
132 /* Kernel-to-user notifications. */
133 OVS_PACKET_CMD_MISS, /* Flow table miss. */
134 OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
135
136 /* Userspace commands. */
137 OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
138};
139
140/**
141 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
142 * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire
143 * packet as received, from the start of the Ethernet header onward. For
144 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
145 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
146 * the flow key extracted from the packet as originally received.
147 * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key
148 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
149 * userspace to adapt its flow setup strategy by comparing its notion of the
150 * flow key against the kernel's.
151 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used
152 * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
153 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
154 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
155 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
156 * specified there.
157 *
158 * These attributes follow the &struct ovs_header within the Generic Netlink
159 * payload for %OVS_PACKET_* commands.
160 */
161enum ovs_packet_attr {
162 OVS_PACKET_ATTR_UNSPEC,
163 OVS_PACKET_ATTR_PACKET, /* Packet data. */
164 OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
165 OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
166 OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
167 __OVS_PACKET_ATTR_MAX
168};
169
170#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
171
172/* Virtual ports. */
173
174#define OVS_VPORT_FAMILY "ovs_vport"
175#define OVS_VPORT_MCGROUP "ovs_vport"
176#define OVS_VPORT_VERSION 0x1
177
178enum ovs_vport_cmd {
179 OVS_VPORT_CMD_UNSPEC,
180 OVS_VPORT_CMD_NEW,
181 OVS_VPORT_CMD_DEL,
182 OVS_VPORT_CMD_GET,
183 OVS_VPORT_CMD_SET
184};
185
186enum ovs_vport_type {
187 OVS_VPORT_TYPE_UNSPEC,
188 OVS_VPORT_TYPE_NETDEV, /* network device */
189 OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
190 OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
191 OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
192 __OVS_VPORT_TYPE_MAX
193};
194
195#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
196
197/**
198 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
199 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
200 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
201 * of vport.
202 * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device
203 * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
204 * plus a null terminator.
205 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
206 * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that
207 * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
208 * this port. A value of zero indicates that upcalls should not be sent.
209 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
210 * packets sent or received through the vport.
211 *
212 * These attributes follow the &struct ovs_header within the Generic Netlink
213 * payload for %OVS_VPORT_* commands.
214 *
215 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
216 * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is
217 * optional; if not specified a free port number is automatically selected.
218 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
219 * of vport.
220 *
221 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
222 * look up the vport to operate on; otherwise dp_idx from the &struct
223 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
224 */
225enum ovs_vport_attr {
226 OVS_VPORT_ATTR_UNSPEC,
227 OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */
228 OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */
229 OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
230 OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
231 OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */
232 OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
233 __OVS_VPORT_ATTR_MAX
234};
235
236#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
237
238/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
239 */
240enum {
241 OVS_TUNNEL_ATTR_UNSPEC,
242 OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
243 __OVS_TUNNEL_ATTR_MAX
244};
245
246#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
247
248/* Flows. */
249
250#define OVS_FLOW_FAMILY "ovs_flow"
251#define OVS_FLOW_MCGROUP "ovs_flow"
252#define OVS_FLOW_VERSION 0x1
253
254enum ovs_flow_cmd {
255 OVS_FLOW_CMD_UNSPEC,
256 OVS_FLOW_CMD_NEW,
257 OVS_FLOW_CMD_DEL,
258 OVS_FLOW_CMD_GET,
259 OVS_FLOW_CMD_SET
260};
261
262struct ovs_flow_stats {
263 __u64 n_packets; /* Number of matched packets. */
264 __u64 n_bytes; /* Number of matched bytes. */
265};
266
267enum ovs_key_attr {
268 OVS_KEY_ATTR_UNSPEC,
269 OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */
270 OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */
271 OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */
272 OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */
273 OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */
274 OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */
275 OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */
276 OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */
277 OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */
278 OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */
279 OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */
280 OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */
281 OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */
282 OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
283 OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */
284 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
285 OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
286 OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */
287
288#ifdef __KERNEL__
289 OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
290#endif
291 __OVS_KEY_ATTR_MAX
292};
293
294#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
295
296enum ovs_tunnel_key_attr {
297 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
298 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
299 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
300 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
301 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
302 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
303 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
304 __OVS_TUNNEL_KEY_ATTR_MAX
305};
306
307#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
308
309/**
310 * enum ovs_frag_type - IPv4 and IPv6 fragment type
311 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
312 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
313 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
314 *
315 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
316 * ovs_key_ipv6.
317 */
318enum ovs_frag_type {
319 OVS_FRAG_TYPE_NONE,
320 OVS_FRAG_TYPE_FIRST,
321 OVS_FRAG_TYPE_LATER,
322 __OVS_FRAG_TYPE_MAX
323};
324
325#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
326
327struct ovs_key_ethernet {
328 __u8 eth_src[ETH_ALEN];
329 __u8 eth_dst[ETH_ALEN];
330};
331
332struct ovs_key_ipv4 {
333 __be32 ipv4_src;
334 __be32 ipv4_dst;
335 __u8 ipv4_proto;
336 __u8 ipv4_tos;
337 __u8 ipv4_ttl;
338 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */
339};
340
341struct ovs_key_ipv6 {
342 __be32 ipv6_src[4];
343 __be32 ipv6_dst[4];
344 __be32 ipv6_label; /* 20-bits in least-significant bits. */
345 __u8 ipv6_proto;
346 __u8 ipv6_tclass;
347 __u8 ipv6_hlimit;
348 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
349};
350
351struct ovs_key_tcp {
352 __be16 tcp_src;
353 __be16 tcp_dst;
354};
355
356struct ovs_key_udp {
357 __be16 udp_src;
358 __be16 udp_dst;
359};
360
361struct ovs_key_sctp {
362 __be16 sctp_src;
363 __be16 sctp_dst;
364};
365
366struct ovs_key_icmp {
367 __u8 icmp_type;
368 __u8 icmp_code;
369};
370
371struct ovs_key_icmpv6 {
372 __u8 icmpv6_type;
373 __u8 icmpv6_code;
374};
375
376struct ovs_key_arp {
377 __be32 arp_sip;
378 __be32 arp_tip;
379 __be16 arp_op;
380 __u8 arp_sha[ETH_ALEN];
381 __u8 arp_tha[ETH_ALEN];
382};
383
384struct ovs_key_nd {
385 __u32 nd_target[4];
386 __u8 nd_sll[ETH_ALEN];
387 __u8 nd_tll[ETH_ALEN];
388};
389
390/**
391 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
392 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
393 * key. Always present in notifications. Required for all requests (except
394 * dumps).
395 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
396 * the actions to take for packets that match the key. Always present in
397 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for
398 * %OVS_FLOW_CMD_SET requests.
399 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
400 * flow. Present in notifications if the stats would be nonzero. Ignored in
401 * requests.
402 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
403 * TCP flags seen on packets in this flow. Only present in notifications for
404 * TCP flows, and only if it would be nonzero. Ignored in requests.
405 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
406 * the system monotonic clock, at which a packet was last processed for this
407 * flow. Only present in notifications if a packet has been processed for this
408 * flow. Ignored in requests.
409 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
410 * last-used time, accumulated TCP flags, and statistics for this flow.
411 * Otherwise ignored in requests. Never present in notifications.
412 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
413 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
414 * match with corresponding flow key bit, while mask bit value '0' specifies
415 * a wildcarded match. Omitting attribute is treated as wildcarding all
416 * corresponding fields. Optional for all requests. If not present,
417 * all flow key bits are exact match bits.
418 *
419 * These attributes follow the &struct ovs_header within the Generic Netlink
420 * payload for %OVS_FLOW_* commands.
421 */
422enum ovs_flow_attr {
423 OVS_FLOW_ATTR_UNSPEC,
424 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
425 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
426 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
427 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
428 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
429 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
430 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */
431 __OVS_FLOW_ATTR_MAX
432};
433
434#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
435
436/**
437 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
438 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
439 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
440 * %UINT32_MAX samples all packets and intermediate values sample intermediate
441 * fractions of packets.
442 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
443 * Actions are passed as nested attributes.
444 *
445 * Executes the specified actions with the given probability on a per-packet
446 * basis.
447 */
448enum ovs_sample_attr {
449 OVS_SAMPLE_ATTR_UNSPEC,
450 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
451 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
452 __OVS_SAMPLE_ATTR_MAX,
453};
454
455#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
456
457/**
458 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
459 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
460 * message should be sent. Required.
461 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
462 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
463 */
464enum ovs_userspace_attr {
465 OVS_USERSPACE_ATTR_UNSPEC,
466 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
467 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
468 __OVS_USERSPACE_ATTR_MAX
469};
470
471#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
472
473/**
474 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
475 * @vlan_tpid: Tag protocol identifier (TPID) to push.
476 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set
477 * (but it will not be set in the 802.1Q header that is pushed).
478 *
479 * The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID
480 * values are those that the kernel module also parses as 802.1Q headers, to
481 * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN
482 * from having surprising results.
483 */
484struct ovs_action_push_vlan {
485 __be16 vlan_tpid; /* 802.1Q TPID. */
486 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
487};
488
489/**
490 * enum ovs_action_attr - Action types.
491 *
492 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
493 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
494 * %OVS_USERSPACE_ATTR_* attributes.
495 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The
496 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
497 * value.
498 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the
499 * packet.
500 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
501 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
502 * the nested %OVS_SAMPLE_ATTR_* attributes.
503 *
504 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
505 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
506 * type may not be changed.
507 */
508
509enum ovs_action_attr {
510 OVS_ACTION_ATTR_UNSPEC,
511 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */
512 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
513 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */
514 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */
515 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */
516 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
517 __OVS_ACTION_ATTR_MAX
518};
519
520#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
521
522#endif /* _LINUX_OPENVSWITCH_H */