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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
---|---|
2 | |
3 | /* |
4 | * Copyright (c) 2007-2017 Nicira, Inc. |
5 | * |
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. |
9 | * |
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. |
14 | * |
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 |
18 | * 02110-1301, USA |
19 | */ |
20 | |
21 | #ifndef _UAPI__LINUX_OPENVSWITCH_H |
22 | #define _UAPI__LINUX_OPENVSWITCH_H 1 |
23 | |
24 | #include <linux/types.h> |
25 | #include <linux/if_ether.h> |
26 | |
27 | /** |
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). |
31 | * |
32 | * Attributes following the header are specific to a particular OVS Generic |
33 | * Netlink family, but all of the OVS families use this header. |
34 | */ |
35 | |
36 | struct ovs_header { |
37 | int dp_ifindex; |
38 | }; |
39 | |
40 | /* Datapaths. */ |
41 | |
42 | #define OVS_DATAPATH_FAMILY "ovs_datapath" |
43 | #define OVS_DATAPATH_MCGROUP "ovs_datapath" |
44 | |
45 | /* V2: |
46 | * - API users are expected to provide OVS_DP_ATTR_USER_FEATURES |
47 | * when creating the datapath. |
48 | */ |
49 | #define OVS_DATAPATH_VERSION 2 |
50 | |
51 | /* First OVS datapath version to support features */ |
52 | #define OVS_DP_VER_FEATURES 2 |
53 | |
54 | enum ovs_datapath_cmd { |
55 | OVS_DP_CMD_UNSPEC, |
56 | OVS_DP_CMD_NEW, |
57 | OVS_DP_CMD_DEL, |
58 | OVS_DP_CMD_GET, |
59 | OVS_DP_CMD_SET |
60 | }; |
61 | |
62 | /** |
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 |
72 | * not be sent. |
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. |
79 | * @OVS_DP_ATTR_IFINDEX: Interface index for a new datapath netdev. Only |
80 | * valid for %OVS_DP_CMD_NEW requests. |
81 | * |
82 | * These attributes follow the &struct ovs_header within the Generic Netlink |
83 | * payload for %OVS_DP_* commands. |
84 | */ |
85 | enum ovs_datapath_attr { |
86 | OVS_DP_ATTR_UNSPEC, |
87 | OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */ |
88 | OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */ |
89 | OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */ |
90 | OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */ |
91 | OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */ |
92 | OVS_DP_ATTR_PAD, |
93 | OVS_DP_ATTR_MASKS_CACHE_SIZE, |
94 | OVS_DP_ATTR_PER_CPU_PIDS, /* Netlink PIDS to receive upcalls in |
95 | * per-cpu dispatch mode |
96 | */ |
97 | OVS_DP_ATTR_IFINDEX, |
98 | __OVS_DP_ATTR_MAX |
99 | }; |
100 | |
101 | #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) |
102 | |
103 | struct ovs_dp_stats { |
104 | __u64 n_hit; /* Number of flow table matches. */ |
105 | __u64 n_missed; /* Number of flow table misses. */ |
106 | __u64 n_lost; /* Number of misses not sent to userspace. */ |
107 | __u64 n_flows; /* Number of flows present */ |
108 | }; |
109 | |
110 | struct ovs_dp_megaflow_stats { |
111 | __u64 n_mask_hit; /* Number of masks used for flow lookups. */ |
112 | __u32 n_masks; /* Number of masks for the datapath. */ |
113 | __u32 pad0; /* Pad for future expension. */ |
114 | __u64 n_cache_hit; /* Number of cache matches for flow lookups. */ |
115 | __u64 pad1; /* Pad for future expension. */ |
116 | }; |
117 | |
118 | struct ovs_vport_stats { |
119 | __u64 rx_packets; /* total packets received */ |
120 | __u64 tx_packets; /* total packets transmitted */ |
121 | __u64 rx_bytes; /* total bytes received */ |
122 | __u64 tx_bytes; /* total bytes transmitted */ |
123 | __u64 rx_errors; /* bad packets received */ |
124 | __u64 tx_errors; /* packet transmit problems */ |
125 | __u64 rx_dropped; /* no space in linux buffers */ |
126 | __u64 tx_dropped; /* no space available in linux */ |
127 | }; |
128 | |
129 | /* Allow last Netlink attribute to be unaligned */ |
130 | #define OVS_DP_F_UNALIGNED (1 << 0) |
131 | |
132 | /* Allow datapath to associate multiple Netlink PIDs to each vport */ |
133 | #define OVS_DP_F_VPORT_PIDS (1 << 1) |
134 | |
135 | /* Allow tc offload recirc sharing */ |
136 | #define OVS_DP_F_TC_RECIRC_SHARING (1 << 2) |
137 | |
138 | /* Allow per-cpu dispatch of upcalls */ |
139 | #define OVS_DP_F_DISPATCH_UPCALL_PER_CPU (1 << 3) |
140 | |
141 | /* Fixed logical ports. */ |
142 | #define OVSP_LOCAL ((__u32)0) |
143 | |
144 | /* Packet transfer. */ |
145 | |
146 | #define OVS_PACKET_FAMILY "ovs_packet" |
147 | #define OVS_PACKET_VERSION 0x1 |
148 | |
149 | enum ovs_packet_cmd { |
150 | OVS_PACKET_CMD_UNSPEC, |
151 | |
152 | /* Kernel-to-user notifications. */ |
153 | OVS_PACKET_CMD_MISS, /* Flow table miss. */ |
154 | OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */ |
155 | |
156 | /* Userspace commands. */ |
157 | OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ |
158 | }; |
159 | |
160 | /** |
161 | * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. |
162 | * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire |
163 | * packet as received, from the start of the Ethernet header onward. For |
164 | * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by |
165 | * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is |
166 | * the flow key extracted from the packet as originally received. |
167 | * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key |
168 | * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows |
169 | * userspace to adapt its flow setup strategy by comparing its notion of the |
170 | * flow key against the kernel's. |
171 | * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used |
172 | * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. |
173 | * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional |
174 | * %OVS_USERSPACE_ATTR_ACTIONS attribute. |
175 | * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION |
176 | * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an |
177 | * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content |
178 | * specified there. |
179 | * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION |
180 | * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an |
181 | * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the |
182 | * output port is actually a tunnel port. Contains the output tunnel key |
183 | * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes. |
184 | * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and |
185 | * @OVS_PACKET_ATTR_LEN: Packet size before truncation. |
186 | * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment |
187 | * size. |
188 | * @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb). |
189 | * |
190 | * These attributes follow the &struct ovs_header within the Generic Netlink |
191 | * payload for %OVS_PACKET_* commands. |
192 | */ |
193 | enum ovs_packet_attr { |
194 | OVS_PACKET_ATTR_UNSPEC, |
195 | OVS_PACKET_ATTR_PACKET, /* Packet data. */ |
196 | OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */ |
197 | OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
198 | OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ |
199 | OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_* |
200 | attributes. */ |
201 | OVS_PACKET_ATTR_UNUSED1, |
202 | OVS_PACKET_ATTR_UNUSED2, |
203 | OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe, |
204 | error logging should be suppressed. */ |
205 | OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */ |
206 | OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */ |
207 | OVS_PACKET_ATTR_HASH, /* Packet hash. */ |
208 | __OVS_PACKET_ATTR_MAX |
209 | }; |
210 | |
211 | #define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) |
212 | |
213 | /* Virtual ports. */ |
214 | |
215 | #define OVS_VPORT_FAMILY "ovs_vport" |
216 | #define OVS_VPORT_MCGROUP "ovs_vport" |
217 | #define OVS_VPORT_VERSION 0x1 |
218 | |
219 | enum ovs_vport_cmd { |
220 | OVS_VPORT_CMD_UNSPEC, |
221 | OVS_VPORT_CMD_NEW, |
222 | OVS_VPORT_CMD_DEL, |
223 | OVS_VPORT_CMD_GET, |
224 | OVS_VPORT_CMD_SET |
225 | }; |
226 | |
227 | enum ovs_vport_type { |
228 | OVS_VPORT_TYPE_UNSPEC, |
229 | OVS_VPORT_TYPE_NETDEV, /* network device */ |
230 | OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ |
231 | OVS_VPORT_TYPE_GRE, /* GRE tunnel. */ |
232 | OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */ |
233 | OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */ |
234 | __OVS_VPORT_TYPE_MAX |
235 | }; |
236 | |
237 | #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) |
238 | |
239 | /** |
240 | * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. |
241 | * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. |
242 | * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type |
243 | * of vport. |
244 | * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device |
245 | * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes |
246 | * plus a null terminator. |
247 | * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. |
248 | * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace |
249 | * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets |
250 | * received on this port. If this is a single-element array of value 0, |
251 | * upcalls should not be sent. |
252 | * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for |
253 | * packets sent or received through the vport. |
254 | * |
255 | * These attributes follow the &struct ovs_header within the Generic Netlink |
256 | * payload for %OVS_VPORT_* commands. |
257 | * |
258 | * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and |
259 | * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is |
260 | * optional; if not specified a free port number is automatically selected. |
261 | * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type |
262 | * of vport. |
263 | * |
264 | * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to |
265 | * look up the vport to operate on; otherwise dp_idx from the &struct |
266 | * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. |
267 | */ |
268 | enum ovs_vport_attr { |
269 | OVS_VPORT_ATTR_UNSPEC, |
270 | OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ |
271 | OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ |
272 | OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ |
273 | OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ |
274 | OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */ |
275 | /* receiving upcalls */ |
276 | OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ |
277 | OVS_VPORT_ATTR_PAD, |
278 | OVS_VPORT_ATTR_IFINDEX, |
279 | OVS_VPORT_ATTR_NETNSID, |
280 | OVS_VPORT_ATTR_UPCALL_STATS, |
281 | __OVS_VPORT_ATTR_MAX |
282 | }; |
283 | |
284 | #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) |
285 | |
286 | /** |
287 | * enum ovs_vport_upcall_attr - attributes for %OVS_VPORT_UPCALL* commands |
288 | * @OVS_VPORT_UPCALL_SUCCESS: 64-bit upcall success packets. |
289 | * @OVS_VPORT_UPCALL_FAIL: 64-bit upcall fail packets. |
290 | */ |
291 | enum ovs_vport_upcall_attr { |
292 | OVS_VPORT_UPCALL_ATTR_SUCCESS, |
293 | OVS_VPORT_UPCALL_ATTR_FAIL, |
294 | __OVS_VPORT_UPCALL_ATTR_MAX |
295 | }; |
296 | |
297 | #define OVS_VPORT_UPCALL_ATTR_MAX (__OVS_VPORT_UPCALL_ATTR_MAX - 1) |
298 | |
299 | enum { |
300 | OVS_VXLAN_EXT_UNSPEC, |
301 | OVS_VXLAN_EXT_GBP, /* Flag or __u32 */ |
302 | __OVS_VXLAN_EXT_MAX, |
303 | }; |
304 | |
305 | #define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1) |
306 | |
307 | |
308 | /* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. |
309 | */ |
310 | enum { |
311 | OVS_TUNNEL_ATTR_UNSPEC, |
312 | OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */ |
313 | OVS_TUNNEL_ATTR_EXTENSION, |
314 | __OVS_TUNNEL_ATTR_MAX |
315 | }; |
316 | |
317 | #define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1) |
318 | |
319 | /* Flows. */ |
320 | |
321 | #define OVS_FLOW_FAMILY "ovs_flow" |
322 | #define OVS_FLOW_MCGROUP "ovs_flow" |
323 | #define OVS_FLOW_VERSION 0x1 |
324 | |
325 | enum ovs_flow_cmd { |
326 | OVS_FLOW_CMD_UNSPEC, |
327 | OVS_FLOW_CMD_NEW, |
328 | OVS_FLOW_CMD_DEL, |
329 | OVS_FLOW_CMD_GET, |
330 | OVS_FLOW_CMD_SET |
331 | }; |
332 | |
333 | struct ovs_flow_stats { |
334 | __u64 n_packets; /* Number of matched packets. */ |
335 | __u64 n_bytes; /* Number of matched bytes. */ |
336 | }; |
337 | |
338 | enum ovs_key_attr { |
339 | OVS_KEY_ATTR_UNSPEC, |
340 | OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ |
341 | OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ |
342 | OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ |
343 | OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ |
344 | OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ |
345 | OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ |
346 | OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ |
347 | OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ |
348 | OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ |
349 | OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ |
350 | OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ |
351 | OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ |
352 | OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ |
353 | OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ |
354 | OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ |
355 | OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */ |
356 | OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */ |
357 | OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */ |
358 | OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash |
359 | is not computed by the datapath. */ |
360 | OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */ |
361 | OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls. |
362 | * The implementation may restrict |
363 | * the accepted length of the array. */ |
364 | OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */ |
365 | OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */ |
366 | OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */ |
367 | OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */ |
368 | OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */ |
369 | OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */ |
370 | OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */ |
371 | |
372 | /* User space decided to squat on types 29 and 30. They are defined |
373 | * below, but should not be sent to the kernel. |
374 | * |
375 | * WARNING: No new types should be added unless they are defined |
376 | * for both kernel and user space (no 'ifdef's). It's hard |
377 | * to keep compatibility otherwise. |
378 | */ |
379 | OVS_KEY_ATTR_PACKET_TYPE, /* be32 packet type */ |
380 | OVS_KEY_ATTR_ND_EXTENSIONS, /* IPv6 Neighbor Discovery extensions */ |
381 | |
382 | OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info. |
383 | * For in-kernel use only. |
384 | */ |
385 | OVS_KEY_ATTR_IPV6_EXTHDRS, /* struct ovs_key_ipv6_exthdr */ |
386 | __OVS_KEY_ATTR_MAX |
387 | }; |
388 | |
389 | #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) |
390 | |
391 | enum ovs_tunnel_key_attr { |
392 | /* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */ |
393 | OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */ |
394 | OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */ |
395 | OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */ |
396 | OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */ |
397 | OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */ |
398 | OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */ |
399 | OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */ |
400 | OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */ |
401 | OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */ |
402 | OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */ |
403 | OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */ |
404 | OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */ |
405 | OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */ |
406 | OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */ |
407 | OVS_TUNNEL_KEY_ATTR_PAD, |
408 | OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */ |
409 | OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/ |
410 | __OVS_TUNNEL_KEY_ATTR_MAX |
411 | }; |
412 | |
413 | #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1) |
414 | |
415 | /** |
416 | * enum ovs_frag_type - IPv4 and IPv6 fragment type |
417 | * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. |
418 | * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. |
419 | * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. |
420 | * |
421 | * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct |
422 | * ovs_key_ipv6. |
423 | */ |
424 | enum ovs_frag_type { |
425 | OVS_FRAG_TYPE_NONE, |
426 | OVS_FRAG_TYPE_FIRST, |
427 | OVS_FRAG_TYPE_LATER, |
428 | __OVS_FRAG_TYPE_MAX |
429 | }; |
430 | |
431 | #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) |
432 | |
433 | struct ovs_key_ethernet { |
434 | __u8 eth_src[ETH_ALEN]; |
435 | __u8 eth_dst[ETH_ALEN]; |
436 | }; |
437 | |
438 | struct ovs_key_mpls { |
439 | __be32 mpls_lse; |
440 | }; |
441 | |
442 | struct ovs_key_ipv4 { |
443 | __be32 ipv4_src; |
444 | __be32 ipv4_dst; |
445 | __u8 ipv4_proto; |
446 | __u8 ipv4_tos; |
447 | __u8 ipv4_ttl; |
448 | __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ |
449 | }; |
450 | |
451 | struct ovs_key_ipv6 { |
452 | __be32 ipv6_src[4]; |
453 | __be32 ipv6_dst[4]; |
454 | __be32 ipv6_label; /* 20-bits in least-significant bits. */ |
455 | __u8 ipv6_proto; |
456 | __u8 ipv6_tclass; |
457 | __u8 ipv6_hlimit; |
458 | __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ |
459 | }; |
460 | |
461 | /* separate structure to support backward compatibility with older user space */ |
462 | struct ovs_key_ipv6_exthdrs { |
463 | __u16 hdrs; |
464 | }; |
465 | |
466 | struct ovs_key_tcp { |
467 | __be16 tcp_src; |
468 | __be16 tcp_dst; |
469 | }; |
470 | |
471 | struct ovs_key_udp { |
472 | __be16 udp_src; |
473 | __be16 udp_dst; |
474 | }; |
475 | |
476 | struct ovs_key_sctp { |
477 | __be16 sctp_src; |
478 | __be16 sctp_dst; |
479 | }; |
480 | |
481 | struct ovs_key_icmp { |
482 | __u8 icmp_type; |
483 | __u8 icmp_code; |
484 | }; |
485 | |
486 | struct ovs_key_icmpv6 { |
487 | __u8 icmpv6_type; |
488 | __u8 icmpv6_code; |
489 | }; |
490 | |
491 | struct ovs_key_arp { |
492 | __be32 arp_sip; |
493 | __be32 arp_tip; |
494 | __be16 arp_op; |
495 | __u8 arp_sha[ETH_ALEN]; |
496 | __u8 arp_tha[ETH_ALEN]; |
497 | }; |
498 | |
499 | struct ovs_key_nd { |
500 | __be32 nd_target[4]; |
501 | __u8 nd_sll[ETH_ALEN]; |
502 | __u8 nd_tll[ETH_ALEN]; |
503 | }; |
504 | |
505 | #define OVS_CT_LABELS_LEN_32 4 |
506 | #define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32)) |
507 | struct ovs_key_ct_labels { |
508 | union { |
509 | __u8 ct_labels[OVS_CT_LABELS_LEN]; |
510 | __u32 ct_labels_32[OVS_CT_LABELS_LEN_32]; |
511 | }; |
512 | }; |
513 | |
514 | /* OVS_KEY_ATTR_CT_STATE flags */ |
515 | #define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */ |
516 | #define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */ |
517 | #define OVS_CS_F_RELATED 0x04 /* Related to an established |
518 | * connection. */ |
519 | #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */ |
520 | #define OVS_CS_F_INVALID 0x10 /* Could not track connection. */ |
521 | #define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */ |
522 | #define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was |
523 | * mangled by NAT. |
524 | */ |
525 | #define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port |
526 | * was mangled by NAT. |
527 | */ |
528 | |
529 | #define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT) |
530 | |
531 | struct ovs_key_ct_tuple_ipv4 { |
532 | __be32 ipv4_src; |
533 | __be32 ipv4_dst; |
534 | __be16 src_port; |
535 | __be16 dst_port; |
536 | __u8 ipv4_proto; |
537 | }; |
538 | |
539 | struct ovs_key_ct_tuple_ipv6 { |
540 | __be32 ipv6_src[4]; |
541 | __be32 ipv6_dst[4]; |
542 | __be16 src_port; |
543 | __be16 dst_port; |
544 | __u8 ipv6_proto; |
545 | }; |
546 | |
547 | enum ovs_nsh_key_attr { |
548 | OVS_NSH_KEY_ATTR_UNSPEC, |
549 | OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */ |
550 | OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */ |
551 | OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */ |
552 | __OVS_NSH_KEY_ATTR_MAX |
553 | }; |
554 | |
555 | #define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1) |
556 | |
557 | struct ovs_nsh_key_base { |
558 | __u8 flags; |
559 | __u8 ttl; |
560 | __u8 mdtype; |
561 | __u8 np; |
562 | __be32 path_hdr; |
563 | }; |
564 | |
565 | #define NSH_MD1_CONTEXT_SIZE 4 |
566 | |
567 | struct ovs_nsh_key_md1 { |
568 | __be32 context[NSH_MD1_CONTEXT_SIZE]; |
569 | }; |
570 | |
571 | /** |
572 | * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. |
573 | * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow |
574 | * key. Always present in notifications. Required for all requests (except |
575 | * dumps). |
576 | * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying |
577 | * the actions to take for packets that match the key. Always present in |
578 | * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for |
579 | * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without |
580 | * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions, |
581 | * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given. |
582 | * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this |
583 | * flow. Present in notifications if the stats would be nonzero. Ignored in |
584 | * requests. |
585 | * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the |
586 | * TCP flags seen on packets in this flow. Only present in notifications for |
587 | * TCP flows, and only if it would be nonzero. Ignored in requests. |
588 | * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on |
589 | * the system monotonic clock, at which a packet was last processed for this |
590 | * flow. Only present in notifications if a packet has been processed for this |
591 | * flow. Ignored in requests. |
592 | * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the |
593 | * last-used time, accumulated TCP flags, and statistics for this flow. |
594 | * Otherwise ignored in requests. Never present in notifications. |
595 | * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the |
596 | * mask bits for wildcarded flow match. Mask bit value '1' specifies exact |
597 | * match with corresponding flow key bit, while mask bit value '0' specifies |
598 | * a wildcarded match. Omitting attribute is treated as wildcarding all |
599 | * corresponding fields. Optional for all requests. If not present, |
600 | * all flow key bits are exact match bits. |
601 | * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique |
602 | * identifier for the flow. Causes the flow to be indexed by this value rather |
603 | * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all |
604 | * requests. Present in notifications if the flow was created with this |
605 | * attribute. |
606 | * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_* |
607 | * flags that provide alternative semantics for flow installation and |
608 | * retrieval. Optional for all requests. |
609 | * |
610 | * These attributes follow the &struct ovs_header within the Generic Netlink |
611 | * payload for %OVS_FLOW_* commands. |
612 | */ |
613 | enum ovs_flow_attr { |
614 | OVS_FLOW_ATTR_UNSPEC, |
615 | OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ |
616 | OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
617 | OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ |
618 | OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ |
619 | OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ |
620 | OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ |
621 | OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */ |
622 | OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error |
623 | * logging should be suppressed. */ |
624 | OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */ |
625 | OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */ |
626 | OVS_FLOW_ATTR_PAD, |
627 | __OVS_FLOW_ATTR_MAX |
628 | }; |
629 | |
630 | #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) |
631 | |
632 | /** |
633 | * Omit attributes for notifications. |
634 | * |
635 | * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath |
636 | * may omit the corresponding %OVS_FLOW_ATTR_* from the response. |
637 | */ |
638 | #define OVS_UFID_F_OMIT_KEY (1 << 0) |
639 | #define OVS_UFID_F_OMIT_MASK (1 << 1) |
640 | #define OVS_UFID_F_OMIT_ACTIONS (1 << 2) |
641 | |
642 | /** |
643 | * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. |
644 | * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with |
645 | * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of |
646 | * %UINT32_MAX samples all packets and intermediate values sample intermediate |
647 | * fractions of packets. |
648 | * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. |
649 | * Actions are passed as nested attributes. |
650 | * |
651 | * Executes the specified actions with the given probability on a per-packet |
652 | * basis. |
653 | */ |
654 | enum ovs_sample_attr { |
655 | OVS_SAMPLE_ATTR_UNSPEC, |
656 | OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ |
657 | OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
658 | __OVS_SAMPLE_ATTR_MAX, |
659 | |
660 | #ifdef __KERNEL__ |
661 | OVS_SAMPLE_ATTR_ARG /* struct sample_arg */ |
662 | #endif |
663 | }; |
664 | |
665 | #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) |
666 | |
667 | #ifdef __KERNEL__ |
668 | struct sample_arg { |
669 | bool exec; /* When true, actions in sample will not |
670 | * change flow keys. False otherwise. |
671 | */ |
672 | u32 probability; /* Same value as |
673 | * 'OVS_SAMPLE_ATTR_PROBABILITY'. |
674 | */ |
675 | }; |
676 | #endif |
677 | |
678 | /** |
679 | * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. |
680 | * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION |
681 | * message should be sent. Required. |
682 | * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is |
683 | * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. |
684 | * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get |
685 | * tunnel info. |
686 | * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall. |
687 | */ |
688 | enum ovs_userspace_attr { |
689 | OVS_USERSPACE_ATTR_UNSPEC, |
690 | OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ |
691 | OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ |
692 | OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port |
693 | * to get tunnel info. */ |
694 | OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */ |
695 | __OVS_USERSPACE_ATTR_MAX |
696 | }; |
697 | |
698 | #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) |
699 | |
700 | struct ovs_action_trunc { |
701 | __u32 max_len; /* Max packet size in bytes. */ |
702 | }; |
703 | |
704 | /** |
705 | * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument. |
706 | * @mpls_lse: MPLS label stack entry to push. |
707 | * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame. |
708 | * |
709 | * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and |
710 | * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected. |
711 | */ |
712 | struct ovs_action_push_mpls { |
713 | __be32 mpls_lse; |
714 | __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */ |
715 | }; |
716 | |
717 | /** |
718 | * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action |
719 | * argument. |
720 | * @mpls_lse: MPLS label stack entry to push. |
721 | * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame. |
722 | * @tun_flags: MPLS tunnel attributes. |
723 | * |
724 | * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and |
725 | * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected. |
726 | */ |
727 | struct ovs_action_add_mpls { |
728 | __be32 mpls_lse; |
729 | __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */ |
730 | __u16 tun_flags; |
731 | }; |
732 | |
733 | #define OVS_MPLS_L3_TUNNEL_FLAG_MASK (1 << 0) /* Flag to specify the place of |
734 | * insertion of MPLS header. |
735 | * When false, the MPLS header |
736 | * will be inserted at the start |
737 | * of the packet. |
738 | * When true, the MPLS header |
739 | * will be inserted at the start |
740 | * of the l3 header. |
741 | */ |
742 | |
743 | /** |
744 | * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. |
745 | * @vlan_tpid: Tag protocol identifier (TPID) to push. |
746 | * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set |
747 | * (but it will not be set in the 802.1Q header that is pushed). |
748 | * |
749 | * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD. |
750 | * The only acceptable TPID values are those that the kernel module also parses |
751 | * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed |
752 | * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results. |
753 | */ |
754 | struct ovs_action_push_vlan { |
755 | __be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */ |
756 | __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ |
757 | }; |
758 | |
759 | /* Data path hash algorithm for computing Datapath hash. |
760 | * |
761 | * The algorithm type only specifies the fields in a flow |
762 | * will be used as part of the hash. Each datapath is free |
763 | * to use its own hash algorithm. The hash value will be |
764 | * opaque to the user space daemon. |
765 | */ |
766 | enum ovs_hash_alg { |
767 | OVS_HASH_ALG_L4, |
768 | OVS_HASH_ALG_SYM_L4, |
769 | }; |
770 | |
771 | /* |
772 | * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument. |
773 | * @hash_alg: Algorithm used to compute hash prior to recirculation. |
774 | * @hash_basis: basis used for computing hash. |
775 | */ |
776 | struct ovs_action_hash { |
777 | __u32 hash_alg; /* One of ovs_hash_alg. */ |
778 | __u32 hash_basis; |
779 | }; |
780 | |
781 | /** |
782 | * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action. |
783 | * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack |
784 | * table. This allows future packets for the same connection to be identified |
785 | * as 'established' or 'related'. The flow key for the current packet will |
786 | * retain the pre-commit connection state. |
787 | * @OVS_CT_ATTR_ZONE: u16 connection tracking zone. |
788 | * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the |
789 | * mask, the corresponding bit in the value is copied to the connection |
790 | * tracking mark field in the connection. |
791 | * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN |
792 | * mask. For each bit set in the mask, the corresponding bit in the value is |
793 | * copied to the connection tracking label field in the connection. |
794 | * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG. |
795 | * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address |
796 | * translation (NAT) on the packet. |
797 | * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing |
798 | * nothing if the connection is already committed will check that the current |
799 | * packet is in conntrack entry's original direction. If directionality does |
800 | * not match, will delete the existing conntrack entry and commit a new one. |
801 | * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types |
802 | * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to |
803 | * zero, the corresponding event type is not generated. Default behavior |
804 | * depends on system configuration, but typically all event types are |
805 | * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot |
806 | * of events. Explicitly passing this attribute allows limiting the updates |
807 | * received to the events of interest. The bit 1 << IPCT_NEW, 1 << |
808 | * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to |
809 | * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups, |
810 | * respectively. Remaining bits control the changes for which an event is |
811 | * delivered on the NFNLGRP_CONNTRACK_UPDATE group. |
812 | * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout. |
813 | */ |
814 | enum ovs_ct_attr { |
815 | OVS_CT_ATTR_UNSPEC, |
816 | OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */ |
817 | OVS_CT_ATTR_ZONE, /* u16 zone id. */ |
818 | OVS_CT_ATTR_MARK, /* mark to associate with this connection. */ |
819 | OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */ |
820 | OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of |
821 | related connections. */ |
822 | OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */ |
823 | OVS_CT_ATTR_FORCE_COMMIT, /* No argument */ |
824 | OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */ |
825 | OVS_CT_ATTR_TIMEOUT, /* Associate timeout with this connection for |
826 | * fine-grain timeout tuning. */ |
827 | __OVS_CT_ATTR_MAX |
828 | }; |
829 | |
830 | #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1) |
831 | |
832 | /** |
833 | * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT. |
834 | * |
835 | * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port). |
836 | * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination |
837 | * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be |
838 | * specified. Effective only for packets for ct_state NEW connections. |
839 | * Packets of committed connections are mangled by the NAT action according to |
840 | * the committed NAT type regardless of the flags specified. As a corollary, a |
841 | * NAT action without a NAT type flag will only mangle packets of committed |
842 | * connections. The following NAT attributes only apply for NEW |
843 | * (non-committed) connections, and they may be included only when the CT |
844 | * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or |
845 | * @OVS_NAT_ATTR_DST is also included. |
846 | * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr |
847 | * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr |
848 | * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port) |
849 | * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port) |
850 | * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots |
851 | * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5) |
852 | * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping |
853 | */ |
854 | enum ovs_nat_attr { |
855 | OVS_NAT_ATTR_UNSPEC, |
856 | OVS_NAT_ATTR_SRC, |
857 | OVS_NAT_ATTR_DST, |
858 | OVS_NAT_ATTR_IP_MIN, |
859 | OVS_NAT_ATTR_IP_MAX, |
860 | OVS_NAT_ATTR_PROTO_MIN, |
861 | OVS_NAT_ATTR_PROTO_MAX, |
862 | OVS_NAT_ATTR_PERSISTENT, |
863 | OVS_NAT_ATTR_PROTO_HASH, |
864 | OVS_NAT_ATTR_PROTO_RANDOM, |
865 | __OVS_NAT_ATTR_MAX, |
866 | }; |
867 | |
868 | #define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1) |
869 | |
870 | /* |
871 | * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument. |
872 | * @addresses: Source and destination MAC addresses. |
873 | * @eth_type: Ethernet type |
874 | */ |
875 | struct ovs_action_push_eth { |
876 | struct ovs_key_ethernet addresses; |
877 | }; |
878 | |
879 | /* |
880 | * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN. |
881 | * |
882 | * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for. |
883 | * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_* |
884 | * actions to apply if the packer length is greater than the specified |
885 | * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. |
886 | * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_* |
887 | * actions to apply if the packer length is lesser or equal to the specified |
888 | * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. |
889 | */ |
890 | enum ovs_check_pkt_len_attr { |
891 | OVS_CHECK_PKT_LEN_ATTR_UNSPEC, |
892 | OVS_CHECK_PKT_LEN_ATTR_PKT_LEN, |
893 | OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER, |
894 | OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL, |
895 | __OVS_CHECK_PKT_LEN_ATTR_MAX, |
896 | |
897 | #ifdef __KERNEL__ |
898 | OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */ |
899 | #endif |
900 | }; |
901 | |
902 | #define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1) |
903 | |
904 | #ifdef __KERNEL__ |
905 | struct check_pkt_len_arg { |
906 | u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */ |
907 | bool exec_for_greater; /* When true, actions in IF_GREATER will |
908 | * not change flow keys. False otherwise. |
909 | */ |
910 | bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL |
911 | * will not change flow keys. False |
912 | * otherwise. |
913 | */ |
914 | }; |
915 | #endif |
916 | |
917 | /** |
918 | * enum ovs_action_attr - Action types. |
919 | * |
920 | * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. |
921 | * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size. |
922 | * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested |
923 | * %OVS_USERSPACE_ATTR_* attributes. |
924 | * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The |
925 | * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its |
926 | * value. |
927 | * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A |
928 | * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value, |
929 | * and a mask. For every bit set in the mask, the corresponding bit value |
930 | * is copied from the value to the packet header field, rest of the bits are |
931 | * left unchanged. The non-masked value bits must be passed in as zeroes. |
932 | * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute. |
933 | * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header |
934 | * onto the packet. |
935 | * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header |
936 | * from the packet. |
937 | * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in |
938 | * the nested %OVS_SAMPLE_ATTR_* attributes. |
939 | * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the |
940 | * top of the packets MPLS label stack. Set the ethertype of the |
941 | * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to |
942 | * indicate the new packet contents. |
943 | * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the |
944 | * packet's MPLS label stack. Set the encapsulating frame's ethertype to |
945 | * indicate the new packet contents. This could potentially still be |
946 | * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there |
947 | * is no MPLS label stack, as determined by ethertype, no action is taken. |
948 | * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related |
949 | * entries in the flow key. |
950 | * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the |
951 | * packet. |
952 | * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the |
953 | * packet. |
954 | * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet. |
955 | * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet. |
956 | * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet. |
957 | * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the |
958 | * packet, or modify the packet (e.g., change the DSCP field). |
959 | * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of |
960 | * actions without affecting the original packet and key. |
961 | * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set |
962 | * of actions if greater than the specified packet length, else execute |
963 | * another set of actions. |
964 | * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the |
965 | * start of the packet or at the start of the l3 header depending on the value |
966 | * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS |
967 | * argument. |
968 | * @OVS_ACTION_ATTR_DROP: Explicit drop action. |
969 | * |
970 | * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all |
971 | * fields within a header are modifiable, e.g. the IPv4 protocol and fragment |
972 | * type may not be changed. |
973 | * |
974 | * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated |
975 | * from the @OVS_ACTION_ATTR_SET. |
976 | */ |
977 | |
978 | enum ovs_action_attr { |
979 | OVS_ACTION_ATTR_UNSPEC, |
980 | OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ |
981 | OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ |
982 | OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ |
983 | OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ |
984 | OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ |
985 | OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ |
986 | OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */ |
987 | OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */ |
988 | OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */ |
989 | OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */ |
990 | OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including |
991 | * data immediately followed by a mask. |
992 | * The data must be zero for the unmasked |
993 | * bits. */ |
994 | OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */ |
995 | OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */ |
996 | OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */ |
997 | OVS_ACTION_ATTR_POP_ETH, /* No argument. */ |
998 | OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */ |
999 | OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */ |
1000 | OVS_ACTION_ATTR_POP_NSH, /* No argument. */ |
1001 | OVS_ACTION_ATTR_METER, /* u32 meter ID. */ |
1002 | OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */ |
1003 | OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */ |
1004 | OVS_ACTION_ATTR_ADD_MPLS, /* struct ovs_action_add_mpls. */ |
1005 | OVS_ACTION_ATTR_DEC_TTL, /* Nested OVS_DEC_TTL_ATTR_*. */ |
1006 | OVS_ACTION_ATTR_DROP, /* u32 error code. */ |
1007 | |
1008 | __OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted |
1009 | * from userspace. */ |
1010 | |
1011 | #ifdef __KERNEL__ |
1012 | OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked |
1013 | * set action converted from |
1014 | * OVS_ACTION_ATTR_SET. */ |
1015 | #endif |
1016 | }; |
1017 | |
1018 | #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) |
1019 | |
1020 | /* Meters. */ |
1021 | #define OVS_METER_FAMILY "ovs_meter" |
1022 | #define OVS_METER_MCGROUP "ovs_meter" |
1023 | #define OVS_METER_VERSION 0x1 |
1024 | |
1025 | enum ovs_meter_cmd { |
1026 | OVS_METER_CMD_UNSPEC, |
1027 | OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */ |
1028 | OVS_METER_CMD_SET, /* Add or modify a meter. */ |
1029 | OVS_METER_CMD_DEL, /* Delete a meter. */ |
1030 | OVS_METER_CMD_GET /* Get meter stats. */ |
1031 | }; |
1032 | |
1033 | enum ovs_meter_attr { |
1034 | OVS_METER_ATTR_UNSPEC, |
1035 | OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */ |
1036 | OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits |
1037 | * per second. Otherwise, units in |
1038 | * packets per second. |
1039 | */ |
1040 | OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */ |
1041 | OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */ |
1042 | OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */ |
1043 | OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */ |
1044 | OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */ |
1045 | OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */ |
1046 | OVS_METER_ATTR_PAD, |
1047 | __OVS_METER_ATTR_MAX |
1048 | }; |
1049 | |
1050 | #define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1) |
1051 | |
1052 | enum ovs_band_attr { |
1053 | OVS_BAND_ATTR_UNSPEC, |
1054 | OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */ |
1055 | OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */ |
1056 | OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */ |
1057 | OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */ |
1058 | __OVS_BAND_ATTR_MAX |
1059 | }; |
1060 | |
1061 | #define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1) |
1062 | |
1063 | enum ovs_meter_band_type { |
1064 | OVS_METER_BAND_TYPE_UNSPEC, |
1065 | OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */ |
1066 | __OVS_METER_BAND_TYPE_MAX |
1067 | }; |
1068 | |
1069 | #define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1) |
1070 | |
1071 | /* Conntrack limit */ |
1072 | #define OVS_CT_LIMIT_FAMILY "ovs_ct_limit" |
1073 | #define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit" |
1074 | #define OVS_CT_LIMIT_VERSION 0x1 |
1075 | |
1076 | enum ovs_ct_limit_cmd { |
1077 | OVS_CT_LIMIT_CMD_UNSPEC, |
1078 | OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */ |
1079 | OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */ |
1080 | OVS_CT_LIMIT_CMD_GET /* Get ct limit. */ |
1081 | }; |
1082 | |
1083 | enum ovs_ct_limit_attr { |
1084 | OVS_CT_LIMIT_ATTR_UNSPEC, |
1085 | OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */ |
1086 | __OVS_CT_LIMIT_ATTR_MAX |
1087 | }; |
1088 | |
1089 | #define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1) |
1090 | |
1091 | #define OVS_ZONE_LIMIT_DEFAULT_ZONE -1 |
1092 | |
1093 | struct ovs_zone_limit { |
1094 | int zone_id; |
1095 | __u32 limit; |
1096 | __u32 count; |
1097 | }; |
1098 | |
1099 | enum ovs_dec_ttl_attr { |
1100 | OVS_DEC_TTL_ATTR_UNSPEC, |
1101 | OVS_DEC_TTL_ATTR_ACTION, /* Nested struct nlattr */ |
1102 | __OVS_DEC_TTL_ATTR_MAX |
1103 | }; |
1104 | |
1105 | #define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1) |
1106 | |
1107 | #endif /* _LINUX_OPENVSWITCH_H */ |
1108 |
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