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22e3880a TG |
1 | |
2 | /* | |
3 | * Copyright (c) 2007-2011 Nicira Networks. | |
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 | ||
35 | struct 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 | #define OVS_DATAPATH_VERSION 0x1 | |
44 | ||
45 | enum ovs_datapath_cmd { | |
46 | OVS_DP_CMD_UNSPEC, | |
47 | OVS_DP_CMD_NEW, | |
48 | OVS_DP_CMD_DEL, | |
49 | OVS_DP_CMD_GET, | |
50 | OVS_DP_CMD_SET | |
51 | }; | |
52 | ||
53 | /** | |
54 | * enum ovs_datapath_attr - attributes for %OVS_DP_* commands. | |
55 | * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local | |
56 | * port". This is the name of the network device whose dp_ifindex is given in | |
57 | * the &struct ovs_header. Always present in notifications. Required in | |
58 | * %OVS_DP_NEW requests. May be used as an alternative to specifying | |
59 | * dp_ifindex in other requests (with a dp_ifindex of 0). | |
60 | * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially | |
61 | * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on | |
62 | * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should | |
63 | * not be sent. | |
64 | * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the | |
65 | * datapath. Always present in notifications. | |
66 | * | |
67 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
68 | * payload for %OVS_DP_* commands. | |
69 | */ | |
70 | enum ovs_datapath_attr { | |
71 | OVS_DP_ATTR_UNSPEC, | |
72 | OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */ | |
73 | OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */ | |
74 | OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */ | |
75 | __OVS_DP_ATTR_MAX | |
76 | }; | |
77 | ||
78 | #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) | |
79 | ||
80 | struct ovs_dp_stats { | |
81 | __u64 n_hit; /* Number of flow table matches. */ | |
82 | __u64 n_missed; /* Number of flow table misses. */ | |
83 | __u64 n_lost; /* Number of misses not sent to userspace. */ | |
84 | __u64 n_flows; /* Number of flows present */ | |
85 | }; | |
86 | ||
87 | struct ovs_vport_stats { | |
88 | __u64 rx_packets; /* total packets received */ | |
89 | __u64 tx_packets; /* total packets transmitted */ | |
90 | __u64 rx_bytes; /* total bytes received */ | |
91 | __u64 tx_bytes; /* total bytes transmitted */ | |
92 | __u64 rx_errors; /* bad packets received */ | |
93 | __u64 tx_errors; /* packet transmit problems */ | |
94 | __u64 rx_dropped; /* no space in linux buffers */ | |
95 | __u64 tx_dropped; /* no space available in linux */ | |
96 | }; | |
97 | ||
98 | /* Fixed logical ports. */ | |
99 | #define OVSP_LOCAL ((__u32)0) | |
100 | ||
101 | /* Packet transfer. */ | |
102 | ||
103 | #define OVS_PACKET_FAMILY "ovs_packet" | |
104 | #define OVS_PACKET_VERSION 0x1 | |
105 | ||
106 | enum ovs_packet_cmd { | |
107 | OVS_PACKET_CMD_UNSPEC, | |
108 | ||
109 | /* Kernel-to-user notifications. */ | |
110 | OVS_PACKET_CMD_MISS, /* Flow table miss. */ | |
111 | OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */ | |
112 | ||
113 | /* Userspace commands. */ | |
114 | OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ | |
115 | }; | |
116 | ||
117 | /** | |
118 | * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. | |
119 | * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire | |
120 | * packet as received, from the start of the Ethernet header onward. For | |
121 | * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by | |
122 | * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is | |
123 | * the flow key extracted from the packet as originally received. | |
124 | * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key | |
125 | * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows | |
126 | * userspace to adapt its flow setup strategy by comparing its notion of the | |
127 | * flow key against the kernel's. | |
128 | * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used | |
129 | * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. | |
130 | * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION | |
131 | * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an | |
132 | * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content | |
133 | * specified there. | |
134 | * | |
135 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
136 | * payload for %OVS_PACKET_* commands. | |
137 | */ | |
138 | enum ovs_packet_attr { | |
139 | OVS_PACKET_ATTR_UNSPEC, | |
140 | OVS_PACKET_ATTR_PACKET, /* Packet data. */ | |
141 | OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */ | |
142 | OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
143 | OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ | |
144 | __OVS_PACKET_ATTR_MAX | |
145 | }; | |
146 | ||
147 | #define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) | |
148 | ||
149 | /* Virtual ports. */ | |
150 | ||
151 | #define OVS_VPORT_FAMILY "ovs_vport" | |
152 | #define OVS_VPORT_MCGROUP "ovs_vport" | |
153 | #define OVS_VPORT_VERSION 0x1 | |
154 | ||
155 | enum ovs_vport_cmd { | |
156 | OVS_VPORT_CMD_UNSPEC, | |
157 | OVS_VPORT_CMD_NEW, | |
158 | OVS_VPORT_CMD_DEL, | |
159 | OVS_VPORT_CMD_GET, | |
160 | OVS_VPORT_CMD_SET | |
161 | }; | |
162 | ||
163 | enum ovs_vport_type { | |
164 | OVS_VPORT_TYPE_UNSPEC, | |
165 | OVS_VPORT_TYPE_NETDEV, /* network device */ | |
166 | OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ | |
aa310701 | 167 | OVS_VPORT_TYPE_GRE, /* GRE tunnel. */ |
58264848 | 168 | OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */ |
22e3880a TG |
169 | __OVS_VPORT_TYPE_MAX |
170 | }; | |
171 | ||
172 | #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) | |
173 | ||
174 | /** | |
175 | * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. | |
176 | * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. | |
177 | * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type | |
178 | * of vport. | |
179 | * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device | |
180 | * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes | |
181 | * plus a null terminator. | |
182 | * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. | |
183 | * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that | |
184 | * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on | |
185 | * this port. A value of zero indicates that upcalls should not be sent. | |
186 | * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for | |
187 | * packets sent or received through the vport. | |
188 | * | |
189 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
190 | * payload for %OVS_VPORT_* commands. | |
191 | * | |
192 | * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and | |
193 | * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is | |
194 | * optional; if not specified a free port number is automatically selected. | |
195 | * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type | |
196 | * of vport. | |
22e3880a TG |
197 | * |
198 | * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to | |
199 | * look up the vport to operate on; otherwise dp_idx from the &struct | |
200 | * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. | |
201 | */ | |
202 | enum ovs_vport_attr { | |
203 | OVS_VPORT_ATTR_UNSPEC, | |
204 | OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ | |
205 | OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ | |
206 | OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ | |
207 | OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ | |
208 | OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */ | |
209 | OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ | |
210 | __OVS_VPORT_ATTR_MAX | |
211 | }; | |
212 | ||
213 | #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) | |
214 | ||
58264848 PS |
215 | /* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. |
216 | */ | |
217 | enum { | |
218 | OVS_TUNNEL_ATTR_UNSPEC, | |
219 | OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */ | |
220 | __OVS_TUNNEL_ATTR_MAX | |
221 | }; | |
222 | ||
223 | #define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1) | |
224 | ||
22e3880a TG |
225 | /* Flows. */ |
226 | ||
227 | #define OVS_FLOW_FAMILY "ovs_flow" | |
228 | #define OVS_FLOW_MCGROUP "ovs_flow" | |
229 | #define OVS_FLOW_VERSION 0x1 | |
230 | ||
231 | enum ovs_flow_cmd { | |
232 | OVS_FLOW_CMD_UNSPEC, | |
233 | OVS_FLOW_CMD_NEW, | |
234 | OVS_FLOW_CMD_DEL, | |
235 | OVS_FLOW_CMD_GET, | |
236 | OVS_FLOW_CMD_SET | |
237 | }; | |
238 | ||
239 | struct ovs_flow_stats { | |
240 | __u64 n_packets; /* Number of matched packets. */ | |
241 | __u64 n_bytes; /* Number of matched bytes. */ | |
242 | }; | |
243 | ||
244 | enum ovs_key_attr { | |
245 | OVS_KEY_ATTR_UNSPEC, | |
246 | OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ | |
247 | OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ | |
248 | OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ | |
249 | OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ | |
250 | OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ | |
251 | OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ | |
252 | OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ | |
253 | OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ | |
254 | OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ | |
255 | OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ | |
256 | OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ | |
257 | OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ | |
258 | OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ | |
259 | OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ | |
260 | OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ | |
7d5437c7 PS |
261 | OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */ |
262 | ||
263 | #ifdef __KERNEL__ | |
264 | OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */ | |
265 | #endif | |
22e3880a TG |
266 | __OVS_KEY_ATTR_MAX |
267 | }; | |
268 | ||
269 | #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) | |
270 | ||
7d5437c7 PS |
271 | enum ovs_tunnel_key_attr { |
272 | OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */ | |
273 | OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */ | |
274 | OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */ | |
275 | OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */ | |
276 | OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */ | |
277 | OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */ | |
278 | OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */ | |
279 | __OVS_TUNNEL_KEY_ATTR_MAX | |
280 | }; | |
281 | ||
282 | #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1) | |
283 | ||
22e3880a TG |
284 | /** |
285 | * enum ovs_frag_type - IPv4 and IPv6 fragment type | |
286 | * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. | |
287 | * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. | |
288 | * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. | |
289 | * | |
290 | * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct | |
291 | * ovs_key_ipv6. | |
292 | */ | |
293 | enum ovs_frag_type { | |
294 | OVS_FRAG_TYPE_NONE, | |
295 | OVS_FRAG_TYPE_FIRST, | |
296 | OVS_FRAG_TYPE_LATER, | |
297 | __OVS_FRAG_TYPE_MAX | |
298 | }; | |
299 | ||
300 | #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) | |
301 | ||
302 | struct ovs_key_ethernet { | |
303 | __u8 eth_src[ETH_ALEN]; | |
304 | __u8 eth_dst[ETH_ALEN]; | |
305 | }; | |
306 | ||
307 | struct ovs_key_ipv4 { | |
308 | __be32 ipv4_src; | |
309 | __be32 ipv4_dst; | |
310 | __u8 ipv4_proto; | |
311 | __u8 ipv4_tos; | |
312 | __u8 ipv4_ttl; | |
313 | __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ | |
314 | }; | |
315 | ||
316 | struct ovs_key_ipv6 { | |
317 | __be32 ipv6_src[4]; | |
318 | __be32 ipv6_dst[4]; | |
319 | __be32 ipv6_label; /* 20-bits in least-significant bits. */ | |
320 | __u8 ipv6_proto; | |
321 | __u8 ipv6_tclass; | |
322 | __u8 ipv6_hlimit; | |
323 | __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ | |
324 | }; | |
325 | ||
326 | struct ovs_key_tcp { | |
327 | __be16 tcp_src; | |
328 | __be16 tcp_dst; | |
329 | }; | |
330 | ||
331 | struct ovs_key_udp { | |
332 | __be16 udp_src; | |
333 | __be16 udp_dst; | |
334 | }; | |
335 | ||
336 | struct ovs_key_icmp { | |
337 | __u8 icmp_type; | |
338 | __u8 icmp_code; | |
339 | }; | |
340 | ||
341 | struct ovs_key_icmpv6 { | |
342 | __u8 icmpv6_type; | |
343 | __u8 icmpv6_code; | |
344 | }; | |
345 | ||
346 | struct ovs_key_arp { | |
347 | __be32 arp_sip; | |
348 | __be32 arp_tip; | |
349 | __be16 arp_op; | |
350 | __u8 arp_sha[ETH_ALEN]; | |
351 | __u8 arp_tha[ETH_ALEN]; | |
352 | }; | |
353 | ||
354 | struct ovs_key_nd { | |
355 | __u32 nd_target[4]; | |
356 | __u8 nd_sll[ETH_ALEN]; | |
357 | __u8 nd_tll[ETH_ALEN]; | |
358 | }; | |
359 | ||
360 | /** | |
361 | * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. | |
362 | * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow | |
363 | * key. Always present in notifications. Required for all requests (except | |
364 | * dumps). | |
365 | * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying | |
366 | * the actions to take for packets that match the key. Always present in | |
367 | * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for | |
368 | * %OVS_FLOW_CMD_SET requests. | |
369 | * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this | |
370 | * flow. Present in notifications if the stats would be nonzero. Ignored in | |
371 | * requests. | |
372 | * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the | |
373 | * TCP flags seen on packets in this flow. Only present in notifications for | |
374 | * TCP flows, and only if it would be nonzero. Ignored in requests. | |
375 | * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on | |
376 | * the system monotonic clock, at which a packet was last processed for this | |
377 | * flow. Only present in notifications if a packet has been processed for this | |
378 | * flow. Ignored in requests. | |
379 | * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the | |
380 | * last-used time, accumulated TCP flags, and statistics for this flow. | |
381 | * Otherwise ignored in requests. Never present in notifications. | |
382 | * | |
383 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
384 | * payload for %OVS_FLOW_* commands. | |
385 | */ | |
386 | enum ovs_flow_attr { | |
387 | OVS_FLOW_ATTR_UNSPEC, | |
388 | OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ | |
389 | OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
390 | OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ | |
391 | OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ | |
392 | OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ | |
393 | OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ | |
394 | __OVS_FLOW_ATTR_MAX | |
395 | }; | |
396 | ||
397 | #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) | |
398 | ||
399 | /** | |
400 | * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. | |
401 | * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with | |
402 | * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of | |
403 | * %UINT32_MAX samples all packets and intermediate values sample intermediate | |
404 | * fractions of packets. | |
405 | * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. | |
406 | * Actions are passed as nested attributes. | |
407 | * | |
408 | * Executes the specified actions with the given probability on a per-packet | |
409 | * basis. | |
410 | */ | |
411 | enum ovs_sample_attr { | |
412 | OVS_SAMPLE_ATTR_UNSPEC, | |
413 | OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ | |
414 | OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
415 | __OVS_SAMPLE_ATTR_MAX, | |
416 | }; | |
417 | ||
418 | #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) | |
419 | ||
420 | /** | |
421 | * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. | |
422 | * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION | |
423 | * message should be sent. Required. | |
424 | * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is | |
425 | * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. | |
426 | */ | |
427 | enum ovs_userspace_attr { | |
428 | OVS_USERSPACE_ATTR_UNSPEC, | |
429 | OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ | |
430 | OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ | |
431 | __OVS_USERSPACE_ATTR_MAX | |
432 | }; | |
433 | ||
434 | #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) | |
435 | ||
436 | /** | |
437 | * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. | |
438 | * @vlan_tpid: Tag protocol identifier (TPID) to push. | |
439 | * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set | |
440 | * (but it will not be set in the 802.1Q header that is pushed). | |
441 | * | |
442 | * The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID | |
443 | * values are those that the kernel module also parses as 802.1Q headers, to | |
444 | * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN | |
445 | * from having surprising results. | |
446 | */ | |
447 | struct ovs_action_push_vlan { | |
448 | __be16 vlan_tpid; /* 802.1Q TPID. */ | |
449 | __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ | |
450 | }; | |
451 | ||
452 | /** | |
453 | * enum ovs_action_attr - Action types. | |
454 | * | |
455 | * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. | |
456 | * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested | |
457 | * %OVS_USERSPACE_ATTR_* attributes. | |
458 | * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The | |
459 | * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its | |
460 | * value. | |
461 | * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the | |
462 | * packet. | |
463 | * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet. | |
464 | * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in | |
465 | * the nested %OVS_SAMPLE_ATTR_* attributes. | |
466 | * | |
467 | * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all | |
468 | * fields within a header are modifiable, e.g. the IPv4 protocol and fragment | |
469 | * type may not be changed. | |
470 | */ | |
471 | ||
472 | enum ovs_action_attr { | |
473 | OVS_ACTION_ATTR_UNSPEC, | |
474 | OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ | |
475 | OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ | |
476 | OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ | |
477 | OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ | |
478 | OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ | |
479 | OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ | |
480 | __OVS_ACTION_ATTR_MAX | |
481 | }; | |
482 | ||
483 | #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) | |
484 | ||
485 | #endif /* _LINUX_OPENVSWITCH_H */ |