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1 | /* |
2 | * Copyright (c) 2007-2011 Nicira Networks. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of version 2 of the GNU General Public | |
6 | * License as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
16 | * 02110-1301, USA | |
17 | */ | |
18 | ||
19 | #ifndef _LINUX_OPENVSWITCH_H | |
20 | #define _LINUX_OPENVSWITCH_H 1 | |
21 | ||
22 | #include <linux/types.h> | |
14b57a10 | 23 | #include <linux/if_ether.h> |
ccb1352e JG |
24 | |
25 | /** | |
26 | * struct ovs_header - header for OVS Generic Netlink messages. | |
27 | * @dp_ifindex: ifindex of local port for datapath (0 to make a request not | |
28 | * specific to a datapath). | |
29 | * | |
30 | * Attributes following the header are specific to a particular OVS Generic | |
31 | * Netlink family, but all of the OVS families use this header. | |
32 | */ | |
33 | ||
34 | struct ovs_header { | |
35 | int dp_ifindex; | |
36 | }; | |
37 | ||
38 | /* Datapaths. */ | |
39 | ||
40 | #define OVS_DATAPATH_FAMILY "ovs_datapath" | |
41 | #define OVS_DATAPATH_MCGROUP "ovs_datapath" | |
42 | #define OVS_DATAPATH_VERSION 0x1 | |
43 | ||
44 | enum ovs_datapath_cmd { | |
45 | OVS_DP_CMD_UNSPEC, | |
46 | OVS_DP_CMD_NEW, | |
47 | OVS_DP_CMD_DEL, | |
48 | OVS_DP_CMD_GET, | |
49 | OVS_DP_CMD_SET | |
50 | }; | |
51 | ||
52 | /** | |
53 | * enum ovs_datapath_attr - attributes for %OVS_DP_* commands. | |
54 | * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local | |
55 | * port". This is the name of the network device whose dp_ifindex is given in | |
56 | * the &struct ovs_header. Always present in notifications. Required in | |
57 | * %OVS_DP_NEW requests. May be used as an alternative to specifying | |
58 | * dp_ifindex in other requests (with a dp_ifindex of 0). | |
59 | * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially | |
60 | * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on | |
61 | * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should | |
62 | * not be sent. | |
63 | * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the | |
64 | * datapath. Always present in notifications. | |
65 | * | |
66 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
67 | * payload for %OVS_DP_* commands. | |
68 | */ | |
69 | enum ovs_datapath_attr { | |
70 | OVS_DP_ATTR_UNSPEC, | |
71 | OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */ | |
72 | OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */ | |
73 | OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */ | |
74 | __OVS_DP_ATTR_MAX | |
75 | }; | |
76 | ||
77 | #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) | |
78 | ||
79 | struct ovs_dp_stats { | |
80 | __u64 n_hit; /* Number of flow table matches. */ | |
81 | __u64 n_missed; /* Number of flow table misses. */ | |
82 | __u64 n_lost; /* Number of misses not sent to userspace. */ | |
83 | __u64 n_flows; /* Number of flows present */ | |
84 | }; | |
85 | ||
86 | struct ovs_vport_stats { | |
87 | __u64 rx_packets; /* total packets received */ | |
88 | __u64 tx_packets; /* total packets transmitted */ | |
89 | __u64 rx_bytes; /* total bytes received */ | |
90 | __u64 tx_bytes; /* total bytes transmitted */ | |
91 | __u64 rx_errors; /* bad packets received */ | |
92 | __u64 tx_errors; /* packet transmit problems */ | |
93 | __u64 rx_dropped; /* no space in linux buffers */ | |
94 | __u64 tx_dropped; /* no space available in linux */ | |
95 | }; | |
96 | ||
97 | /* Fixed logical ports. */ | |
9807a54c | 98 | #define OVSP_LOCAL ((__u32)0) |
ccb1352e JG |
99 | |
100 | /* Packet transfer. */ | |
101 | ||
102 | #define OVS_PACKET_FAMILY "ovs_packet" | |
103 | #define OVS_PACKET_VERSION 0x1 | |
104 | ||
105 | enum ovs_packet_cmd { | |
106 | OVS_PACKET_CMD_UNSPEC, | |
107 | ||
108 | /* Kernel-to-user notifications. */ | |
109 | OVS_PACKET_CMD_MISS, /* Flow table miss. */ | |
110 | OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */ | |
111 | ||
112 | /* Userspace commands. */ | |
113 | OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ | |
114 | }; | |
115 | ||
116 | /** | |
117 | * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. | |
118 | * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire | |
119 | * packet as received, from the start of the Ethernet header onward. For | |
120 | * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by | |
121 | * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is | |
122 | * the flow key extracted from the packet as originally received. | |
123 | * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key | |
124 | * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows | |
125 | * userspace to adapt its flow setup strategy by comparing its notion of the | |
126 | * flow key against the kernel's. | |
127 | * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used | |
128 | * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. | |
129 | * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION | |
130 | * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an | |
4490108b BP |
131 | * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content |
132 | * specified there. | |
ccb1352e JG |
133 | * |
134 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
135 | * payload for %OVS_PACKET_* commands. | |
136 | */ | |
137 | enum ovs_packet_attr { | |
138 | OVS_PACKET_ATTR_UNSPEC, | |
139 | OVS_PACKET_ATTR_PACKET, /* Packet data. */ | |
140 | OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */ | |
141 | OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
4490108b | 142 | OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ |
ccb1352e JG |
143 | __OVS_PACKET_ATTR_MAX |
144 | }; | |
145 | ||
146 | #define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) | |
147 | ||
148 | /* Virtual ports. */ | |
149 | ||
150 | #define OVS_VPORT_FAMILY "ovs_vport" | |
151 | #define OVS_VPORT_MCGROUP "ovs_vport" | |
152 | #define OVS_VPORT_VERSION 0x1 | |
153 | ||
154 | enum ovs_vport_cmd { | |
155 | OVS_VPORT_CMD_UNSPEC, | |
156 | OVS_VPORT_CMD_NEW, | |
157 | OVS_VPORT_CMD_DEL, | |
158 | OVS_VPORT_CMD_GET, | |
159 | OVS_VPORT_CMD_SET | |
160 | }; | |
161 | ||
162 | enum ovs_vport_type { | |
163 | OVS_VPORT_TYPE_UNSPEC, | |
164 | OVS_VPORT_TYPE_NETDEV, /* network device */ | |
165 | OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ | |
166 | __OVS_VPORT_TYPE_MAX | |
167 | }; | |
168 | ||
169 | #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) | |
170 | ||
171 | /** | |
172 | * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. | |
173 | * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. | |
174 | * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type | |
175 | * of vport. | |
176 | * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device | |
177 | * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes | |
178 | * plus a null terminator. | |
179 | * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. | |
180 | * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that | |
181 | * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on | |
182 | * this port. A value of zero indicates that upcalls should not be sent. | |
183 | * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for | |
184 | * packets sent or received through the vport. | |
185 | * | |
186 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
187 | * payload for %OVS_VPORT_* commands. | |
188 | * | |
189 | * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and | |
190 | * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is | |
191 | * optional; if not specified a free port number is automatically selected. | |
192 | * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type | |
193 | * of vport. | |
194 | * and other attributes are ignored. | |
195 | * | |
196 | * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to | |
197 | * look up the vport to operate on; otherwise dp_idx from the &struct | |
198 | * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. | |
199 | */ | |
200 | enum ovs_vport_attr { | |
201 | OVS_VPORT_ATTR_UNSPEC, | |
202 | OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ | |
203 | OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ | |
204 | OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ | |
205 | OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ | |
206 | OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */ | |
207 | OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ | |
208 | __OVS_VPORT_ATTR_MAX | |
209 | }; | |
210 | ||
211 | #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) | |
212 | ||
213 | /* Flows. */ | |
214 | ||
215 | #define OVS_FLOW_FAMILY "ovs_flow" | |
216 | #define OVS_FLOW_MCGROUP "ovs_flow" | |
217 | #define OVS_FLOW_VERSION 0x1 | |
218 | ||
219 | enum ovs_flow_cmd { | |
220 | OVS_FLOW_CMD_UNSPEC, | |
221 | OVS_FLOW_CMD_NEW, | |
222 | OVS_FLOW_CMD_DEL, | |
223 | OVS_FLOW_CMD_GET, | |
224 | OVS_FLOW_CMD_SET | |
225 | }; | |
226 | ||
227 | struct ovs_flow_stats { | |
228 | __u64 n_packets; /* Number of matched packets. */ | |
229 | __u64 n_bytes; /* Number of matched bytes. */ | |
230 | }; | |
231 | ||
232 | enum ovs_key_attr { | |
233 | OVS_KEY_ATTR_UNSPEC, | |
234 | OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ | |
235 | OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ | |
236 | OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ | |
237 | OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ | |
238 | OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ | |
239 | OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ | |
240 | OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ | |
241 | OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ | |
242 | OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ | |
243 | OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ | |
244 | OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ | |
245 | OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ | |
246 | OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ | |
247 | OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ | |
39c7caeb | 248 | OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ |
ccb1352e JG |
249 | __OVS_KEY_ATTR_MAX |
250 | }; | |
251 | ||
252 | #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) | |
253 | ||
254 | /** | |
255 | * enum ovs_frag_type - IPv4 and IPv6 fragment type | |
256 | * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. | |
257 | * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. | |
258 | * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. | |
259 | * | |
260 | * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct | |
261 | * ovs_key_ipv6. | |
262 | */ | |
263 | enum ovs_frag_type { | |
264 | OVS_FRAG_TYPE_NONE, | |
265 | OVS_FRAG_TYPE_FIRST, | |
266 | OVS_FRAG_TYPE_LATER, | |
267 | __OVS_FRAG_TYPE_MAX | |
268 | }; | |
269 | ||
270 | #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) | |
271 | ||
272 | struct ovs_key_ethernet { | |
14b57a10 TG |
273 | __u8 eth_src[ETH_ALEN]; |
274 | __u8 eth_dst[ETH_ALEN]; | |
ccb1352e JG |
275 | }; |
276 | ||
277 | struct ovs_key_ipv4 { | |
278 | __be32 ipv4_src; | |
279 | __be32 ipv4_dst; | |
280 | __u8 ipv4_proto; | |
281 | __u8 ipv4_tos; | |
282 | __u8 ipv4_ttl; | |
283 | __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ | |
284 | }; | |
285 | ||
286 | struct ovs_key_ipv6 { | |
287 | __be32 ipv6_src[4]; | |
288 | __be32 ipv6_dst[4]; | |
289 | __be32 ipv6_label; /* 20-bits in least-significant bits. */ | |
290 | __u8 ipv6_proto; | |
291 | __u8 ipv6_tclass; | |
292 | __u8 ipv6_hlimit; | |
293 | __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ | |
294 | }; | |
295 | ||
296 | struct ovs_key_tcp { | |
297 | __be16 tcp_src; | |
298 | __be16 tcp_dst; | |
299 | }; | |
300 | ||
301 | struct ovs_key_udp { | |
302 | __be16 udp_src; | |
303 | __be16 udp_dst; | |
304 | }; | |
305 | ||
306 | struct ovs_key_icmp { | |
307 | __u8 icmp_type; | |
308 | __u8 icmp_code; | |
309 | }; | |
310 | ||
311 | struct ovs_key_icmpv6 { | |
312 | __u8 icmpv6_type; | |
313 | __u8 icmpv6_code; | |
314 | }; | |
315 | ||
316 | struct ovs_key_arp { | |
317 | __be32 arp_sip; | |
318 | __be32 arp_tip; | |
319 | __be16 arp_op; | |
14b57a10 TG |
320 | __u8 arp_sha[ETH_ALEN]; |
321 | __u8 arp_tha[ETH_ALEN]; | |
ccb1352e JG |
322 | }; |
323 | ||
324 | struct ovs_key_nd { | |
325 | __u32 nd_target[4]; | |
14b57a10 TG |
326 | __u8 nd_sll[ETH_ALEN]; |
327 | __u8 nd_tll[ETH_ALEN]; | |
ccb1352e JG |
328 | }; |
329 | ||
330 | /** | |
331 | * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. | |
332 | * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow | |
333 | * key. Always present in notifications. Required for all requests (except | |
334 | * dumps). | |
335 | * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying | |
336 | * the actions to take for packets that match the key. Always present in | |
337 | * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for | |
338 | * %OVS_FLOW_CMD_SET requests. | |
339 | * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this | |
340 | * flow. Present in notifications if the stats would be nonzero. Ignored in | |
341 | * requests. | |
342 | * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the | |
343 | * TCP flags seen on packets in this flow. Only present in notifications for | |
344 | * TCP flows, and only if it would be nonzero. Ignored in requests. | |
345 | * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on | |
346 | * the system monotonic clock, at which a packet was last processed for this | |
347 | * flow. Only present in notifications if a packet has been processed for this | |
348 | * flow. Ignored in requests. | |
349 | * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the | |
350 | * last-used time, accumulated TCP flags, and statistics for this flow. | |
351 | * Otherwise ignored in requests. Never present in notifications. | |
352 | * | |
353 | * These attributes follow the &struct ovs_header within the Generic Netlink | |
354 | * payload for %OVS_FLOW_* commands. | |
355 | */ | |
356 | enum ovs_flow_attr { | |
357 | OVS_FLOW_ATTR_UNSPEC, | |
358 | OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ | |
359 | OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
360 | OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ | |
361 | OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ | |
362 | OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ | |
363 | OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ | |
364 | __OVS_FLOW_ATTR_MAX | |
365 | }; | |
366 | ||
367 | #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) | |
368 | ||
369 | /** | |
370 | * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. | |
371 | * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with | |
372 | * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of | |
373 | * %UINT32_MAX samples all packets and intermediate values sample intermediate | |
374 | * fractions of packets. | |
375 | * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. | |
376 | * Actions are passed as nested attributes. | |
377 | * | |
378 | * Executes the specified actions with the given probability on a per-packet | |
379 | * basis. | |
380 | */ | |
381 | enum ovs_sample_attr { | |
382 | OVS_SAMPLE_ATTR_UNSPEC, | |
383 | OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ | |
384 | OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ | |
385 | __OVS_SAMPLE_ATTR_MAX, | |
386 | }; | |
387 | ||
388 | #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) | |
389 | ||
390 | /** | |
391 | * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. | |
392 | * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION | |
393 | * message should be sent. Required. | |
4490108b BP |
394 | * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is |
395 | * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. | |
ccb1352e JG |
396 | */ |
397 | enum ovs_userspace_attr { | |
398 | OVS_USERSPACE_ATTR_UNSPEC, | |
399 | OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ | |
4490108b | 400 | OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ |
ccb1352e JG |
401 | __OVS_USERSPACE_ATTR_MAX |
402 | }; | |
403 | ||
404 | #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) | |
405 | ||
406 | /** | |
407 | * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. | |
408 | * @vlan_tpid: Tag protocol identifier (TPID) to push. | |
409 | * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set | |
410 | * (but it will not be set in the 802.1Q header that is pushed). | |
411 | * | |
412 | * The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID | |
413 | * values are those that the kernel module also parses as 802.1Q headers, to | |
414 | * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN | |
415 | * from having surprising results. | |
416 | */ | |
417 | struct ovs_action_push_vlan { | |
418 | __be16 vlan_tpid; /* 802.1Q TPID. */ | |
419 | __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ | |
420 | }; | |
421 | ||
422 | /** | |
423 | * enum ovs_action_attr - Action types. | |
424 | * | |
425 | * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. | |
426 | * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested | |
427 | * %OVS_USERSPACE_ATTR_* attributes. | |
428 | * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The | |
429 | * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its | |
430 | * value. | |
431 | * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the | |
432 | * packet. | |
433 | * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet. | |
434 | * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in | |
435 | * the nested %OVS_SAMPLE_ATTR_* attributes. | |
436 | * | |
437 | * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all | |
438 | * fields within a header are modifiable, e.g. the IPv4 protocol and fragment | |
439 | * type may not be changed. | |
440 | */ | |
441 | ||
442 | enum ovs_action_attr { | |
443 | OVS_ACTION_ATTR_UNSPEC, | |
444 | OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ | |
445 | OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ | |
446 | OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ | |
447 | OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ | |
448 | OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ | |
449 | OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ | |
450 | __OVS_ACTION_ATTR_MAX | |
451 | }; | |
452 | ||
453 | #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) | |
454 | ||
455 | #endif /* _LINUX_OPENVSWITCH_H */ |