Thomas Graf | 22e3880 | 2013-03-29 14:46:52 +0100 | [diff] [blame] | 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 */ |
| 167 | __OVS_VPORT_TYPE_MAX |
| 168 | }; |
| 169 | |
| 170 | #define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) |
| 171 | |
| 172 | /** |
| 173 | * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. |
| 174 | * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. |
| 175 | * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type |
| 176 | * of vport. |
| 177 | * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device |
| 178 | * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes |
| 179 | * plus a null terminator. |
| 180 | * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. |
| 181 | * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that |
| 182 | * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on |
| 183 | * this port. A value of zero indicates that upcalls should not be sent. |
| 184 | * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for |
| 185 | * packets sent or received through the vport. |
| 186 | * |
| 187 | * These attributes follow the &struct ovs_header within the Generic Netlink |
| 188 | * payload for %OVS_VPORT_* commands. |
| 189 | * |
| 190 | * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and |
| 191 | * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is |
| 192 | * optional; if not specified a free port number is automatically selected. |
| 193 | * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type |
| 194 | * of vport. |
| 195 | * and other attributes are ignored. |
| 196 | * |
| 197 | * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to |
| 198 | * look up the vport to operate on; otherwise dp_idx from the &struct |
| 199 | * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. |
| 200 | */ |
| 201 | enum ovs_vport_attr { |
| 202 | OVS_VPORT_ATTR_UNSPEC, |
| 203 | OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ |
| 204 | OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ |
| 205 | OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ |
| 206 | OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ |
| 207 | OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */ |
| 208 | OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ |
| 209 | __OVS_VPORT_ATTR_MAX |
| 210 | }; |
| 211 | |
| 212 | #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) |
| 213 | |
| 214 | /* Flows. */ |
| 215 | |
| 216 | #define OVS_FLOW_FAMILY "ovs_flow" |
| 217 | #define OVS_FLOW_MCGROUP "ovs_flow" |
| 218 | #define OVS_FLOW_VERSION 0x1 |
| 219 | |
| 220 | enum ovs_flow_cmd { |
| 221 | OVS_FLOW_CMD_UNSPEC, |
| 222 | OVS_FLOW_CMD_NEW, |
| 223 | OVS_FLOW_CMD_DEL, |
| 224 | OVS_FLOW_CMD_GET, |
| 225 | OVS_FLOW_CMD_SET |
| 226 | }; |
| 227 | |
| 228 | struct ovs_flow_stats { |
| 229 | __u64 n_packets; /* Number of matched packets. */ |
| 230 | __u64 n_bytes; /* Number of matched bytes. */ |
| 231 | }; |
| 232 | |
| 233 | enum ovs_key_attr { |
| 234 | OVS_KEY_ATTR_UNSPEC, |
| 235 | OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ |
| 236 | OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ |
| 237 | OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ |
| 238 | OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ |
| 239 | OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ |
| 240 | OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ |
| 241 | OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ |
| 242 | OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ |
| 243 | OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ |
| 244 | OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ |
| 245 | OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ |
| 246 | OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ |
| 247 | OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ |
| 248 | OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ |
| 249 | OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ |
| 250 | __OVS_KEY_ATTR_MAX |
| 251 | }; |
| 252 | |
| 253 | #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) |
| 254 | |
| 255 | /** |
| 256 | * enum ovs_frag_type - IPv4 and IPv6 fragment type |
| 257 | * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. |
| 258 | * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. |
| 259 | * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. |
| 260 | * |
| 261 | * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct |
| 262 | * ovs_key_ipv6. |
| 263 | */ |
| 264 | enum ovs_frag_type { |
| 265 | OVS_FRAG_TYPE_NONE, |
| 266 | OVS_FRAG_TYPE_FIRST, |
| 267 | OVS_FRAG_TYPE_LATER, |
| 268 | __OVS_FRAG_TYPE_MAX |
| 269 | }; |
| 270 | |
| 271 | #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) |
| 272 | |
| 273 | struct ovs_key_ethernet { |
| 274 | __u8 eth_src[ETH_ALEN]; |
| 275 | __u8 eth_dst[ETH_ALEN]; |
| 276 | }; |
| 277 | |
| 278 | struct ovs_key_ipv4 { |
| 279 | __be32 ipv4_src; |
| 280 | __be32 ipv4_dst; |
| 281 | __u8 ipv4_proto; |
| 282 | __u8 ipv4_tos; |
| 283 | __u8 ipv4_ttl; |
| 284 | __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ |
| 285 | }; |
| 286 | |
| 287 | struct ovs_key_ipv6 { |
| 288 | __be32 ipv6_src[4]; |
| 289 | __be32 ipv6_dst[4]; |
| 290 | __be32 ipv6_label; /* 20-bits in least-significant bits. */ |
| 291 | __u8 ipv6_proto; |
| 292 | __u8 ipv6_tclass; |
| 293 | __u8 ipv6_hlimit; |
| 294 | __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ |
| 295 | }; |
| 296 | |
| 297 | struct ovs_key_tcp { |
| 298 | __be16 tcp_src; |
| 299 | __be16 tcp_dst; |
| 300 | }; |
| 301 | |
| 302 | struct ovs_key_udp { |
| 303 | __be16 udp_src; |
| 304 | __be16 udp_dst; |
| 305 | }; |
| 306 | |
| 307 | struct ovs_key_icmp { |
| 308 | __u8 icmp_type; |
| 309 | __u8 icmp_code; |
| 310 | }; |
| 311 | |
| 312 | struct ovs_key_icmpv6 { |
| 313 | __u8 icmpv6_type; |
| 314 | __u8 icmpv6_code; |
| 315 | }; |
| 316 | |
| 317 | struct ovs_key_arp { |
| 318 | __be32 arp_sip; |
| 319 | __be32 arp_tip; |
| 320 | __be16 arp_op; |
| 321 | __u8 arp_sha[ETH_ALEN]; |
| 322 | __u8 arp_tha[ETH_ALEN]; |
| 323 | }; |
| 324 | |
| 325 | struct ovs_key_nd { |
| 326 | __u32 nd_target[4]; |
| 327 | __u8 nd_sll[ETH_ALEN]; |
| 328 | __u8 nd_tll[ETH_ALEN]; |
| 329 | }; |
| 330 | |
| 331 | /** |
| 332 | * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. |
| 333 | * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow |
| 334 | * key. Always present in notifications. Required for all requests (except |
| 335 | * dumps). |
| 336 | * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying |
| 337 | * the actions to take for packets that match the key. Always present in |
| 338 | * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for |
| 339 | * %OVS_FLOW_CMD_SET requests. |
| 340 | * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this |
| 341 | * flow. Present in notifications if the stats would be nonzero. Ignored in |
| 342 | * requests. |
| 343 | * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the |
| 344 | * TCP flags seen on packets in this flow. Only present in notifications for |
| 345 | * TCP flows, and only if it would be nonzero. Ignored in requests. |
| 346 | * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on |
| 347 | * the system monotonic clock, at which a packet was last processed for this |
| 348 | * flow. Only present in notifications if a packet has been processed for this |
| 349 | * flow. Ignored in requests. |
| 350 | * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the |
| 351 | * last-used time, accumulated TCP flags, and statistics for this flow. |
| 352 | * Otherwise ignored in requests. Never present in notifications. |
| 353 | * |
| 354 | * These attributes follow the &struct ovs_header within the Generic Netlink |
| 355 | * payload for %OVS_FLOW_* commands. |
| 356 | */ |
| 357 | enum ovs_flow_attr { |
| 358 | OVS_FLOW_ATTR_UNSPEC, |
| 359 | OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ |
| 360 | OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
| 361 | OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ |
| 362 | OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ |
| 363 | OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ |
| 364 | OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ |
| 365 | __OVS_FLOW_ATTR_MAX |
| 366 | }; |
| 367 | |
| 368 | #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) |
| 369 | |
| 370 | /** |
| 371 | * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. |
| 372 | * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with |
| 373 | * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of |
| 374 | * %UINT32_MAX samples all packets and intermediate values sample intermediate |
| 375 | * fractions of packets. |
| 376 | * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. |
| 377 | * Actions are passed as nested attributes. |
| 378 | * |
| 379 | * Executes the specified actions with the given probability on a per-packet |
| 380 | * basis. |
| 381 | */ |
| 382 | enum ovs_sample_attr { |
| 383 | OVS_SAMPLE_ATTR_UNSPEC, |
| 384 | OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ |
| 385 | OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
| 386 | __OVS_SAMPLE_ATTR_MAX, |
| 387 | }; |
| 388 | |
| 389 | #define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) |
| 390 | |
| 391 | /** |
| 392 | * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. |
| 393 | * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION |
| 394 | * message should be sent. Required. |
| 395 | * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is |
| 396 | * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. |
| 397 | */ |
| 398 | enum ovs_userspace_attr { |
| 399 | OVS_USERSPACE_ATTR_UNSPEC, |
| 400 | OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ |
| 401 | OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ |
| 402 | __OVS_USERSPACE_ATTR_MAX |
| 403 | }; |
| 404 | |
| 405 | #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) |
| 406 | |
| 407 | /** |
| 408 | * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. |
| 409 | * @vlan_tpid: Tag protocol identifier (TPID) to push. |
| 410 | * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set |
| 411 | * (but it will not be set in the 802.1Q header that is pushed). |
| 412 | * |
| 413 | * The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID |
| 414 | * values are those that the kernel module also parses as 802.1Q headers, to |
| 415 | * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN |
| 416 | * from having surprising results. |
| 417 | */ |
| 418 | struct ovs_action_push_vlan { |
| 419 | __be16 vlan_tpid; /* 802.1Q TPID. */ |
| 420 | __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ |
| 421 | }; |
| 422 | |
| 423 | /** |
| 424 | * enum ovs_action_attr - Action types. |
| 425 | * |
| 426 | * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. |
| 427 | * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested |
| 428 | * %OVS_USERSPACE_ATTR_* attributes. |
| 429 | * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The |
| 430 | * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its |
| 431 | * value. |
| 432 | * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the |
| 433 | * packet. |
| 434 | * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet. |
| 435 | * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in |
| 436 | * the nested %OVS_SAMPLE_ATTR_* attributes. |
| 437 | * |
| 438 | * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all |
| 439 | * fields within a header are modifiable, e.g. the IPv4 protocol and fragment |
| 440 | * type may not be changed. |
| 441 | */ |
| 442 | |
| 443 | enum ovs_action_attr { |
| 444 | OVS_ACTION_ATTR_UNSPEC, |
| 445 | OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ |
| 446 | OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ |
| 447 | OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ |
| 448 | OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ |
| 449 | OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ |
| 450 | OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ |
| 451 | __OVS_ACTION_ATTR_MAX |
| 452 | }; |
| 453 | |
| 454 | #define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) |
| 455 | |
| 456 | #endif /* _LINUX_OPENVSWITCH_H */ |