at v3.12-rc3 18 kB view raw
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#define OVS_DATAPATH_VERSION 0x1 44 45enum 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 */ 70enum 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 80struct 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 87struct 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 106enum 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 */ 138enum 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 155enum 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 163enum 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 */ 167 OVS_VPORT_TYPE_GRE, /* GRE tunnel. */ 168 OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */ 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. 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 */ 202enum 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) 214 215/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. 216 */ 217enum { 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) 224 225/* Flows. */ 226 227#define OVS_FLOW_FAMILY "ovs_flow" 228#define OVS_FLOW_MCGROUP "ovs_flow" 229#define OVS_FLOW_VERSION 0x1 230 231enum 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 239struct ovs_flow_stats { 240 __u64 n_packets; /* Number of matched packets. */ 241 __u64 n_bytes; /* Number of matched bytes. */ 242}; 243 244enum 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 */ 261 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */ 262 OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */ 263 264#ifdef __KERNEL__ 265 OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */ 266#endif 267 __OVS_KEY_ATTR_MAX 268}; 269 270#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) 271 272enum ovs_tunnel_key_attr { 273 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */ 274 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */ 275 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */ 276 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */ 277 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */ 278 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */ 279 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */ 280 __OVS_TUNNEL_KEY_ATTR_MAX 281}; 282 283#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1) 284 285/** 286 * enum ovs_frag_type - IPv4 and IPv6 fragment type 287 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. 288 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. 289 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. 290 * 291 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct 292 * ovs_key_ipv6. 293 */ 294enum ovs_frag_type { 295 OVS_FRAG_TYPE_NONE, 296 OVS_FRAG_TYPE_FIRST, 297 OVS_FRAG_TYPE_LATER, 298 __OVS_FRAG_TYPE_MAX 299}; 300 301#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) 302 303struct ovs_key_ethernet { 304 __u8 eth_src[ETH_ALEN]; 305 __u8 eth_dst[ETH_ALEN]; 306}; 307 308struct ovs_key_ipv4 { 309 __be32 ipv4_src; 310 __be32 ipv4_dst; 311 __u8 ipv4_proto; 312 __u8 ipv4_tos; 313 __u8 ipv4_ttl; 314 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ 315}; 316 317struct ovs_key_ipv6 { 318 __be32 ipv6_src[4]; 319 __be32 ipv6_dst[4]; 320 __be32 ipv6_label; /* 20-bits in least-significant bits. */ 321 __u8 ipv6_proto; 322 __u8 ipv6_tclass; 323 __u8 ipv6_hlimit; 324 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ 325}; 326 327struct ovs_key_tcp { 328 __be16 tcp_src; 329 __be16 tcp_dst; 330}; 331 332struct ovs_key_udp { 333 __be16 udp_src; 334 __be16 udp_dst; 335}; 336 337struct ovs_key_sctp { 338 __be16 sctp_src; 339 __be16 sctp_dst; 340}; 341 342struct ovs_key_icmp { 343 __u8 icmp_type; 344 __u8 icmp_code; 345}; 346 347struct ovs_key_icmpv6 { 348 __u8 icmpv6_type; 349 __u8 icmpv6_code; 350}; 351 352struct ovs_key_arp { 353 __be32 arp_sip; 354 __be32 arp_tip; 355 __be16 arp_op; 356 __u8 arp_sha[ETH_ALEN]; 357 __u8 arp_tha[ETH_ALEN]; 358}; 359 360struct ovs_key_nd { 361 __u32 nd_target[4]; 362 __u8 nd_sll[ETH_ALEN]; 363 __u8 nd_tll[ETH_ALEN]; 364}; 365 366/** 367 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. 368 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow 369 * key. Always present in notifications. Required for all requests (except 370 * dumps). 371 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying 372 * the actions to take for packets that match the key. Always present in 373 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for 374 * %OVS_FLOW_CMD_SET requests. 375 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this 376 * flow. Present in notifications if the stats would be nonzero. Ignored in 377 * requests. 378 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the 379 * TCP flags seen on packets in this flow. Only present in notifications for 380 * TCP flows, and only if it would be nonzero. Ignored in requests. 381 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on 382 * the system monotonic clock, at which a packet was last processed for this 383 * flow. Only present in notifications if a packet has been processed for this 384 * flow. Ignored in requests. 385 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the 386 * last-used time, accumulated TCP flags, and statistics for this flow. 387 * Otherwise ignored in requests. Never present in notifications. 388 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the 389 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact 390 * match with corresponding flow key bit, while mask bit value '0' specifies 391 * a wildcarded match. Omitting attribute is treated as wildcarding all 392 * corresponding fields. Optional for all requests. If not present, 393 * all flow key bits are exact match bits. 394 * 395 * These attributes follow the &struct ovs_header within the Generic Netlink 396 * payload for %OVS_FLOW_* commands. 397 */ 398enum ovs_flow_attr { 399 OVS_FLOW_ATTR_UNSPEC, 400 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ 401 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ 402 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ 403 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ 404 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ 405 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ 406 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */ 407 __OVS_FLOW_ATTR_MAX 408}; 409 410#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) 411 412/** 413 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. 414 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with 415 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of 416 * %UINT32_MAX samples all packets and intermediate values sample intermediate 417 * fractions of packets. 418 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. 419 * Actions are passed as nested attributes. 420 * 421 * Executes the specified actions with the given probability on a per-packet 422 * basis. 423 */ 424enum ovs_sample_attr { 425 OVS_SAMPLE_ATTR_UNSPEC, 426 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ 427 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ 428 __OVS_SAMPLE_ATTR_MAX, 429}; 430 431#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) 432 433/** 434 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. 435 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION 436 * message should be sent. Required. 437 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is 438 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. 439 */ 440enum ovs_userspace_attr { 441 OVS_USERSPACE_ATTR_UNSPEC, 442 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ 443 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ 444 __OVS_USERSPACE_ATTR_MAX 445}; 446 447#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) 448 449/** 450 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. 451 * @vlan_tpid: Tag protocol identifier (TPID) to push. 452 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set 453 * (but it will not be set in the 802.1Q header that is pushed). 454 * 455 * The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID 456 * values are those that the kernel module also parses as 802.1Q headers, to 457 * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN 458 * from having surprising results. 459 */ 460struct ovs_action_push_vlan { 461 __be16 vlan_tpid; /* 802.1Q TPID. */ 462 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ 463}; 464 465/** 466 * enum ovs_action_attr - Action types. 467 * 468 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. 469 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested 470 * %OVS_USERSPACE_ATTR_* attributes. 471 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The 472 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its 473 * value. 474 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the 475 * packet. 476 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet. 477 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in 478 * the nested %OVS_SAMPLE_ATTR_* attributes. 479 * 480 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all 481 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment 482 * type may not be changed. 483 */ 484 485enum ovs_action_attr { 486 OVS_ACTION_ATTR_UNSPEC, 487 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ 488 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ 489 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ 490 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ 491 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ 492 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ 493 __OVS_ACTION_ATTR_MAX 494}; 495 496#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) 497 498#endif /* _LINUX_OPENVSWITCH_H */