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 36struct 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 54enum 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_STATS: Statistics about packets that have passed through the 74 * datapath. Always present in notifications. 75 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the 76 * datapath. Always present in notifications. 77 * 78 * These attributes follow the &struct ovs_header within the Generic Netlink 79 * payload for %OVS_DP_* commands. 80 */ 81enum ovs_datapath_attr { 82 OVS_DP_ATTR_UNSPEC, 83 OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */ 84 OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */ 85 OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */ 86 OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */ 87 OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */ 88 OVS_DP_ATTR_PAD, 89 __OVS_DP_ATTR_MAX 90}; 91 92#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) 93 94struct ovs_dp_stats { 95 __u64 n_hit; /* Number of flow table matches. */ 96 __u64 n_missed; /* Number of flow table misses. */ 97 __u64 n_lost; /* Number of misses not sent to userspace. */ 98 __u64 n_flows; /* Number of flows present */ 99}; 100 101struct ovs_dp_megaflow_stats { 102 __u64 n_mask_hit; /* Number of masks used for flow lookups. */ 103 __u32 n_masks; /* Number of masks for the datapath. */ 104 __u32 pad0; /* Pad for future expension. */ 105 __u64 pad1; /* Pad for future expension. */ 106 __u64 pad2; /* Pad for future expension. */ 107}; 108 109struct ovs_vport_stats { 110 __u64 rx_packets; /* total packets received */ 111 __u64 tx_packets; /* total packets transmitted */ 112 __u64 rx_bytes; /* total bytes received */ 113 __u64 tx_bytes; /* total bytes transmitted */ 114 __u64 rx_errors; /* bad packets received */ 115 __u64 tx_errors; /* packet transmit problems */ 116 __u64 rx_dropped; /* no space in linux buffers */ 117 __u64 tx_dropped; /* no space available in linux */ 118}; 119 120/* Allow last Netlink attribute to be unaligned */ 121#define OVS_DP_F_UNALIGNED (1 << 0) 122 123/* Allow datapath to associate multiple Netlink PIDs to each vport */ 124#define OVS_DP_F_VPORT_PIDS (1 << 1) 125 126/* Allow tc offload recirc sharing */ 127#define OVS_DP_F_TC_RECIRC_SHARING (1 << 2) 128 129/* Fixed logical ports. */ 130#define OVSP_LOCAL ((__u32)0) 131 132/* Packet transfer. */ 133 134#define OVS_PACKET_FAMILY "ovs_packet" 135#define OVS_PACKET_VERSION 0x1 136 137enum ovs_packet_cmd { 138 OVS_PACKET_CMD_UNSPEC, 139 140 /* Kernel-to-user notifications. */ 141 OVS_PACKET_CMD_MISS, /* Flow table miss. */ 142 OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */ 143 144 /* Userspace commands. */ 145 OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ 146}; 147 148/** 149 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. 150 * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire 151 * packet as received, from the start of the Ethernet header onward. For 152 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by 153 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is 154 * the flow key extracted from the packet as originally received. 155 * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key 156 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows 157 * userspace to adapt its flow setup strategy by comparing its notion of the 158 * flow key against the kernel's. 159 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used 160 * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. 161 * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional 162 * %OVS_USERSPACE_ATTR_ACTIONS attribute. 163 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION 164 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an 165 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content 166 * specified there. 167 * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION 168 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an 169 * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the 170 * output port is actually a tunnel port. Contains the output tunnel key 171 * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes. 172 * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and 173 * @OVS_PACKET_ATTR_LEN: Packet size before truncation. 174 * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment 175 * size. 176 * 177 * These attributes follow the &struct ovs_header within the Generic Netlink 178 * payload for %OVS_PACKET_* commands. 179 */ 180enum ovs_packet_attr { 181 OVS_PACKET_ATTR_UNSPEC, 182 OVS_PACKET_ATTR_PACKET, /* Packet data. */ 183 OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */ 184 OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ 185 OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ 186 OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_* 187 attributes. */ 188 OVS_PACKET_ATTR_UNUSED1, 189 OVS_PACKET_ATTR_UNUSED2, 190 OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe, 191 error logging should be suppressed. */ 192 OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */ 193 OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */ 194 __OVS_PACKET_ATTR_MAX 195}; 196 197#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) 198 199/* Virtual ports. */ 200 201#define OVS_VPORT_FAMILY "ovs_vport" 202#define OVS_VPORT_MCGROUP "ovs_vport" 203#define OVS_VPORT_VERSION 0x1 204 205enum ovs_vport_cmd { 206 OVS_VPORT_CMD_UNSPEC, 207 OVS_VPORT_CMD_NEW, 208 OVS_VPORT_CMD_DEL, 209 OVS_VPORT_CMD_GET, 210 OVS_VPORT_CMD_SET 211}; 212 213enum ovs_vport_type { 214 OVS_VPORT_TYPE_UNSPEC, 215 OVS_VPORT_TYPE_NETDEV, /* network device */ 216 OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ 217 OVS_VPORT_TYPE_GRE, /* GRE tunnel. */ 218 OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */ 219 OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */ 220 __OVS_VPORT_TYPE_MAX 221}; 222 223#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) 224 225/** 226 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. 227 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. 228 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type 229 * of vport. 230 * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device 231 * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes 232 * plus a null terminator. 233 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. 234 * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace 235 * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets 236 * received on this port. If this is a single-element array of value 0, 237 * upcalls should not be sent. 238 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for 239 * packets sent or received through the vport. 240 * 241 * These attributes follow the &struct ovs_header within the Generic Netlink 242 * payload for %OVS_VPORT_* commands. 243 * 244 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and 245 * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is 246 * optional; if not specified a free port number is automatically selected. 247 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type 248 * of vport. 249 * 250 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to 251 * look up the vport to operate on; otherwise dp_idx from the &struct 252 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. 253 */ 254enum ovs_vport_attr { 255 OVS_VPORT_ATTR_UNSPEC, 256 OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ 257 OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ 258 OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ 259 OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ 260 OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */ 261 /* receiving upcalls */ 262 OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ 263 OVS_VPORT_ATTR_PAD, 264 OVS_VPORT_ATTR_IFINDEX, 265 OVS_VPORT_ATTR_NETNSID, 266 __OVS_VPORT_ATTR_MAX 267}; 268 269#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) 270 271enum { 272 OVS_VXLAN_EXT_UNSPEC, 273 OVS_VXLAN_EXT_GBP, /* Flag or __u32 */ 274 __OVS_VXLAN_EXT_MAX, 275}; 276 277#define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1) 278 279 280/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. 281 */ 282enum { 283 OVS_TUNNEL_ATTR_UNSPEC, 284 OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */ 285 OVS_TUNNEL_ATTR_EXTENSION, 286 __OVS_TUNNEL_ATTR_MAX 287}; 288 289#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1) 290 291/* Flows. */ 292 293#define OVS_FLOW_FAMILY "ovs_flow" 294#define OVS_FLOW_MCGROUP "ovs_flow" 295#define OVS_FLOW_VERSION 0x1 296 297enum ovs_flow_cmd { 298 OVS_FLOW_CMD_UNSPEC, 299 OVS_FLOW_CMD_NEW, 300 OVS_FLOW_CMD_DEL, 301 OVS_FLOW_CMD_GET, 302 OVS_FLOW_CMD_SET 303}; 304 305struct ovs_flow_stats { 306 __u64 n_packets; /* Number of matched packets. */ 307 __u64 n_bytes; /* Number of matched bytes. */ 308}; 309 310enum ovs_key_attr { 311 OVS_KEY_ATTR_UNSPEC, 312 OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ 313 OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ 314 OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ 315 OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ 316 OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ 317 OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ 318 OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ 319 OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ 320 OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ 321 OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ 322 OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ 323 OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ 324 OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ 325 OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ 326 OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ 327 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */ 328 OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */ 329 OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */ 330 OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash 331 is not computed by the datapath. */ 332 OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */ 333 OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls. 334 * The implementation may restrict 335 * the accepted length of the array. */ 336 OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */ 337 OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */ 338 OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */ 339 OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */ 340 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */ 341 OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */ 342 OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */ 343 344#ifdef __KERNEL__ 345 OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */ 346#endif 347 __OVS_KEY_ATTR_MAX 348}; 349 350#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) 351 352enum ovs_tunnel_key_attr { 353 /* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */ 354 OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */ 355 OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */ 356 OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */ 357 OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */ 358 OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */ 359 OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */ 360 OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */ 361 OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */ 362 OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */ 363 OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */ 364 OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */ 365 OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */ 366 OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */ 367 OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */ 368 OVS_TUNNEL_KEY_ATTR_PAD, 369 OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */ 370 __OVS_TUNNEL_KEY_ATTR_MAX 371}; 372 373#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1) 374 375/** 376 * enum ovs_frag_type - IPv4 and IPv6 fragment type 377 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. 378 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. 379 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. 380 * 381 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct 382 * ovs_key_ipv6. 383 */ 384enum ovs_frag_type { 385 OVS_FRAG_TYPE_NONE, 386 OVS_FRAG_TYPE_FIRST, 387 OVS_FRAG_TYPE_LATER, 388 __OVS_FRAG_TYPE_MAX 389}; 390 391#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) 392 393struct ovs_key_ethernet { 394 __u8 eth_src[ETH_ALEN]; 395 __u8 eth_dst[ETH_ALEN]; 396}; 397 398struct ovs_key_mpls { 399 __be32 mpls_lse; 400}; 401 402struct ovs_key_ipv4 { 403 __be32 ipv4_src; 404 __be32 ipv4_dst; 405 __u8 ipv4_proto; 406 __u8 ipv4_tos; 407 __u8 ipv4_ttl; 408 __u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ 409}; 410 411struct ovs_key_ipv6 { 412 __be32 ipv6_src[4]; 413 __be32 ipv6_dst[4]; 414 __be32 ipv6_label; /* 20-bits in least-significant bits. */ 415 __u8 ipv6_proto; 416 __u8 ipv6_tclass; 417 __u8 ipv6_hlimit; 418 __u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ 419}; 420 421struct ovs_key_tcp { 422 __be16 tcp_src; 423 __be16 tcp_dst; 424}; 425 426struct ovs_key_udp { 427 __be16 udp_src; 428 __be16 udp_dst; 429}; 430 431struct ovs_key_sctp { 432 __be16 sctp_src; 433 __be16 sctp_dst; 434}; 435 436struct ovs_key_icmp { 437 __u8 icmp_type; 438 __u8 icmp_code; 439}; 440 441struct ovs_key_icmpv6 { 442 __u8 icmpv6_type; 443 __u8 icmpv6_code; 444}; 445 446struct ovs_key_arp { 447 __be32 arp_sip; 448 __be32 arp_tip; 449 __be16 arp_op; 450 __u8 arp_sha[ETH_ALEN]; 451 __u8 arp_tha[ETH_ALEN]; 452}; 453 454struct ovs_key_nd { 455 __be32 nd_target[4]; 456 __u8 nd_sll[ETH_ALEN]; 457 __u8 nd_tll[ETH_ALEN]; 458}; 459 460#define OVS_CT_LABELS_LEN_32 4 461#define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32)) 462struct ovs_key_ct_labels { 463 union { 464 __u8 ct_labels[OVS_CT_LABELS_LEN]; 465 __u32 ct_labels_32[OVS_CT_LABELS_LEN_32]; 466 }; 467}; 468 469/* OVS_KEY_ATTR_CT_STATE flags */ 470#define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */ 471#define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */ 472#define OVS_CS_F_RELATED 0x04 /* Related to an established 473 * connection. */ 474#define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */ 475#define OVS_CS_F_INVALID 0x10 /* Could not track connection. */ 476#define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */ 477#define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was 478 * mangled by NAT. 479 */ 480#define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port 481 * was mangled by NAT. 482 */ 483 484#define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT) 485 486struct ovs_key_ct_tuple_ipv4 { 487 __be32 ipv4_src; 488 __be32 ipv4_dst; 489 __be16 src_port; 490 __be16 dst_port; 491 __u8 ipv4_proto; 492}; 493 494struct ovs_key_ct_tuple_ipv6 { 495 __be32 ipv6_src[4]; 496 __be32 ipv6_dst[4]; 497 __be16 src_port; 498 __be16 dst_port; 499 __u8 ipv6_proto; 500}; 501 502enum ovs_nsh_key_attr { 503 OVS_NSH_KEY_ATTR_UNSPEC, 504 OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */ 505 OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */ 506 OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */ 507 __OVS_NSH_KEY_ATTR_MAX 508}; 509 510#define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1) 511 512struct ovs_nsh_key_base { 513 __u8 flags; 514 __u8 ttl; 515 __u8 mdtype; 516 __u8 np; 517 __be32 path_hdr; 518}; 519 520#define NSH_MD1_CONTEXT_SIZE 4 521 522struct ovs_nsh_key_md1 { 523 __be32 context[NSH_MD1_CONTEXT_SIZE]; 524}; 525 526/** 527 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. 528 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow 529 * key. Always present in notifications. Required for all requests (except 530 * dumps). 531 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying 532 * the actions to take for packets that match the key. Always present in 533 * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for 534 * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without 535 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions, 536 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given. 537 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this 538 * flow. Present in notifications if the stats would be nonzero. Ignored in 539 * requests. 540 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the 541 * TCP flags seen on packets in this flow. Only present in notifications for 542 * TCP flows, and only if it would be nonzero. Ignored in requests. 543 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on 544 * the system monotonic clock, at which a packet was last processed for this 545 * flow. Only present in notifications if a packet has been processed for this 546 * flow. Ignored in requests. 547 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the 548 * last-used time, accumulated TCP flags, and statistics for this flow. 549 * Otherwise ignored in requests. Never present in notifications. 550 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the 551 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact 552 * match with corresponding flow key bit, while mask bit value '0' specifies 553 * a wildcarded match. Omitting attribute is treated as wildcarding all 554 * corresponding fields. Optional for all requests. If not present, 555 * all flow key bits are exact match bits. 556 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique 557 * identifier for the flow. Causes the flow to be indexed by this value rather 558 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all 559 * requests. Present in notifications if the flow was created with this 560 * attribute. 561 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_* 562 * flags that provide alternative semantics for flow installation and 563 * retrieval. Optional for all requests. 564 * 565 * These attributes follow the &struct ovs_header within the Generic Netlink 566 * payload for %OVS_FLOW_* commands. 567 */ 568enum ovs_flow_attr { 569 OVS_FLOW_ATTR_UNSPEC, 570 OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ 571 OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ 572 OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ 573 OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ 574 OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ 575 OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ 576 OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */ 577 OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error 578 * logging should be suppressed. */ 579 OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */ 580 OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */ 581 OVS_FLOW_ATTR_PAD, 582 __OVS_FLOW_ATTR_MAX 583}; 584 585#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) 586 587/** 588 * Omit attributes for notifications. 589 * 590 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath 591 * may omit the corresponding %OVS_FLOW_ATTR_* from the response. 592 */ 593#define OVS_UFID_F_OMIT_KEY (1 << 0) 594#define OVS_UFID_F_OMIT_MASK (1 << 1) 595#define OVS_UFID_F_OMIT_ACTIONS (1 << 2) 596 597/** 598 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. 599 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with 600 * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of 601 * %UINT32_MAX samples all packets and intermediate values sample intermediate 602 * fractions of packets. 603 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. 604 * Actions are passed as nested attributes. 605 * 606 * Executes the specified actions with the given probability on a per-packet 607 * basis. 608 */ 609enum ovs_sample_attr { 610 OVS_SAMPLE_ATTR_UNSPEC, 611 OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ 612 OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ 613 __OVS_SAMPLE_ATTR_MAX, 614 615#ifdef __KERNEL__ 616 OVS_SAMPLE_ATTR_ARG /* struct sample_arg */ 617#endif 618}; 619 620#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) 621 622#ifdef __KERNEL__ 623struct sample_arg { 624 bool exec; /* When true, actions in sample will not 625 * change flow keys. False otherwise. 626 */ 627 u32 probability; /* Same value as 628 * 'OVS_SAMPLE_ATTR_PROBABILITY'. 629 */ 630}; 631#endif 632 633/** 634 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. 635 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION 636 * message should be sent. Required. 637 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is 638 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. 639 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get 640 * tunnel info. 641 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall. 642 */ 643enum ovs_userspace_attr { 644 OVS_USERSPACE_ATTR_UNSPEC, 645 OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ 646 OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ 647 OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port 648 * to get tunnel info. */ 649 OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */ 650 __OVS_USERSPACE_ATTR_MAX 651}; 652 653#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) 654 655struct ovs_action_trunc { 656 __u32 max_len; /* Max packet size in bytes. */ 657}; 658 659/** 660 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument. 661 * @mpls_lse: MPLS label stack entry to push. 662 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame. 663 * 664 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and 665 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected. 666 */ 667struct ovs_action_push_mpls { 668 __be32 mpls_lse; 669 __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */ 670}; 671 672/** 673 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. 674 * @vlan_tpid: Tag protocol identifier (TPID) to push. 675 * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set 676 * (but it will not be set in the 802.1Q header that is pushed). 677 * 678 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD. 679 * The only acceptable TPID values are those that the kernel module also parses 680 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed 681 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results. 682 */ 683struct ovs_action_push_vlan { 684 __be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */ 685 __be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ 686}; 687 688/* Data path hash algorithm for computing Datapath hash. 689 * 690 * The algorithm type only specifies the fields in a flow 691 * will be used as part of the hash. Each datapath is free 692 * to use its own hash algorithm. The hash value will be 693 * opaque to the user space daemon. 694 */ 695enum ovs_hash_alg { 696 OVS_HASH_ALG_L4, 697}; 698 699/* 700 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument. 701 * @hash_alg: Algorithm used to compute hash prior to recirculation. 702 * @hash_basis: basis used for computing hash. 703 */ 704struct ovs_action_hash { 705 __u32 hash_alg; /* One of ovs_hash_alg. */ 706 __u32 hash_basis; 707}; 708 709/** 710 * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action. 711 * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack 712 * table. This allows future packets for the same connection to be identified 713 * as 'established' or 'related'. The flow key for the current packet will 714 * retain the pre-commit connection state. 715 * @OVS_CT_ATTR_ZONE: u16 connection tracking zone. 716 * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the 717 * mask, the corresponding bit in the value is copied to the connection 718 * tracking mark field in the connection. 719 * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN 720 * mask. For each bit set in the mask, the corresponding bit in the value is 721 * copied to the connection tracking label field in the connection. 722 * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG. 723 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address 724 * translation (NAT) on the packet. 725 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing 726 * nothing if the connection is already committed will check that the current 727 * packet is in conntrack entry's original direction. If directionality does 728 * not match, will delete the existing conntrack entry and commit a new one. 729 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types 730 * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to 731 * zero, the corresponding event type is not generated. Default behavior 732 * depends on system configuration, but typically all event types are 733 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot 734 * of events. Explicitly passing this attribute allows limiting the updates 735 * received to the events of interest. The bit 1 << IPCT_NEW, 1 << 736 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to 737 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups, 738 * respectively. Remaining bits control the changes for which an event is 739 * delivered on the NFNLGRP_CONNTRACK_UPDATE group. 740 */ 741enum ovs_ct_attr { 742 OVS_CT_ATTR_UNSPEC, 743 OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */ 744 OVS_CT_ATTR_ZONE, /* u16 zone id. */ 745 OVS_CT_ATTR_MARK, /* mark to associate with this connection. */ 746 OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */ 747 OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of 748 related connections. */ 749 OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */ 750 OVS_CT_ATTR_FORCE_COMMIT, /* No argument */ 751 OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */ 752 __OVS_CT_ATTR_MAX 753}; 754 755#define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1) 756 757/** 758 * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT. 759 * 760 * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port). 761 * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination 762 * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be 763 * specified. Effective only for packets for ct_state NEW connections. 764 * Packets of committed connections are mangled by the NAT action according to 765 * the committed NAT type regardless of the flags specified. As a corollary, a 766 * NAT action without a NAT type flag will only mangle packets of committed 767 * connections. The following NAT attributes only apply for NEW 768 * (non-committed) connections, and they may be included only when the CT 769 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or 770 * @OVS_NAT_ATTR_DST is also included. 771 * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr 772 * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr 773 * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port) 774 * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port) 775 * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots 776 * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5) 777 * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping 778 */ 779enum ovs_nat_attr { 780 OVS_NAT_ATTR_UNSPEC, 781 OVS_NAT_ATTR_SRC, 782 OVS_NAT_ATTR_DST, 783 OVS_NAT_ATTR_IP_MIN, 784 OVS_NAT_ATTR_IP_MAX, 785 OVS_NAT_ATTR_PROTO_MIN, 786 OVS_NAT_ATTR_PROTO_MAX, 787 OVS_NAT_ATTR_PERSISTENT, 788 OVS_NAT_ATTR_PROTO_HASH, 789 OVS_NAT_ATTR_PROTO_RANDOM, 790 __OVS_NAT_ATTR_MAX, 791}; 792 793#define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1) 794 795/* 796 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument. 797 * @addresses: Source and destination MAC addresses. 798 * @eth_type: Ethernet type 799 */ 800struct ovs_action_push_eth { 801 struct ovs_key_ethernet addresses; 802}; 803 804/* 805 * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN. 806 * 807 * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for. 808 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_* 809 * actions to apply if the packer length is greater than the specified 810 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. 811 * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_* 812 * actions to apply if the packer length is lesser or equal to the specified 813 * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. 814 */ 815enum ovs_check_pkt_len_attr { 816 OVS_CHECK_PKT_LEN_ATTR_UNSPEC, 817 OVS_CHECK_PKT_LEN_ATTR_PKT_LEN, 818 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER, 819 OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL, 820 __OVS_CHECK_PKT_LEN_ATTR_MAX, 821 822#ifdef __KERNEL__ 823 OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */ 824#endif 825}; 826 827#define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1) 828 829#ifdef __KERNEL__ 830struct check_pkt_len_arg { 831 u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */ 832 bool exec_for_greater; /* When true, actions in IF_GREATER will 833 * not change flow keys. False otherwise. 834 */ 835 bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL 836 * will not change flow keys. False 837 * otherwise. 838 */ 839}; 840#endif 841 842/** 843 * enum ovs_action_attr - Action types. 844 * 845 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. 846 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size. 847 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested 848 * %OVS_USERSPACE_ATTR_* attributes. 849 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The 850 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its 851 * value. 852 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A 853 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value, 854 * and a mask. For every bit set in the mask, the corresponding bit value 855 * is copied from the value to the packet header field, rest of the bits are 856 * left unchanged. The non-masked value bits must be passed in as zeroes. 857 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute. 858 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header 859 * onto the packet. 860 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header 861 * from the packet. 862 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in 863 * the nested %OVS_SAMPLE_ATTR_* attributes. 864 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the 865 * top of the packets MPLS label stack. Set the ethertype of the 866 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to 867 * indicate the new packet contents. 868 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the 869 * packet's MPLS label stack. Set the encapsulating frame's ethertype to 870 * indicate the new packet contents. This could potentially still be 871 * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there 872 * is no MPLS label stack, as determined by ethertype, no action is taken. 873 * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related 874 * entries in the flow key. 875 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the 876 * packet. 877 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the 878 * packet. 879 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet. 880 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet. 881 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet. 882 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the 883 * packet, or modify the packet (e.g., change the DSCP field). 884 * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of 885 * actions without affecting the original packet and key. 886 * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set 887 * of actions if greater than the specified packet length, else execute 888 * another set of actions. 889 * 890 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all 891 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment 892 * type may not be changed. 893 * 894 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated 895 * from the @OVS_ACTION_ATTR_SET. 896 */ 897 898enum ovs_action_attr { 899 OVS_ACTION_ATTR_UNSPEC, 900 OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ 901 OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ 902 OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ 903 OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ 904 OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ 905 OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ 906 OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */ 907 OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */ 908 OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */ 909 OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */ 910 OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including 911 * data immediately followed by a mask. 912 * The data must be zero for the unmasked 913 * bits. */ 914 OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */ 915 OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */ 916 OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */ 917 OVS_ACTION_ATTR_POP_ETH, /* No argument. */ 918 OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */ 919 OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */ 920 OVS_ACTION_ATTR_POP_NSH, /* No argument. */ 921 OVS_ACTION_ATTR_METER, /* u32 meter ID. */ 922 OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */ 923 OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */ 924 925 __OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted 926 * from userspace. */ 927 928#ifdef __KERNEL__ 929 OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked 930 * set action converted from 931 * OVS_ACTION_ATTR_SET. */ 932#endif 933}; 934 935#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) 936 937/* Meters. */ 938#define OVS_METER_FAMILY "ovs_meter" 939#define OVS_METER_MCGROUP "ovs_meter" 940#define OVS_METER_VERSION 0x1 941 942enum ovs_meter_cmd { 943 OVS_METER_CMD_UNSPEC, 944 OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */ 945 OVS_METER_CMD_SET, /* Add or modify a meter. */ 946 OVS_METER_CMD_DEL, /* Delete a meter. */ 947 OVS_METER_CMD_GET /* Get meter stats. */ 948}; 949 950enum ovs_meter_attr { 951 OVS_METER_ATTR_UNSPEC, 952 OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */ 953 OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits 954 * per second. Otherwise, units in 955 * packets per second. 956 */ 957 OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */ 958 OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */ 959 OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */ 960 OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */ 961 OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */ 962 OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */ 963 OVS_METER_ATTR_PAD, 964 __OVS_METER_ATTR_MAX 965}; 966 967#define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1) 968 969enum ovs_band_attr { 970 OVS_BAND_ATTR_UNSPEC, 971 OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */ 972 OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */ 973 OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */ 974 OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */ 975 __OVS_BAND_ATTR_MAX 976}; 977 978#define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1) 979 980enum ovs_meter_band_type { 981 OVS_METER_BAND_TYPE_UNSPEC, 982 OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */ 983 __OVS_METER_BAND_TYPE_MAX 984}; 985 986#define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1) 987 988/* Conntrack limit */ 989#define OVS_CT_LIMIT_FAMILY "ovs_ct_limit" 990#define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit" 991#define OVS_CT_LIMIT_VERSION 0x1 992 993enum ovs_ct_limit_cmd { 994 OVS_CT_LIMIT_CMD_UNSPEC, 995 OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */ 996 OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */ 997 OVS_CT_LIMIT_CMD_GET /* Get ct limit. */ 998}; 999 1000enum ovs_ct_limit_attr {
1001 OVS_CT_LIMIT_ATTR_UNSPEC, 1002 OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */ 1003 __OVS_CT_LIMIT_ATTR_MAX 1004}; 1005 1006#define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1) 1007 1008#define OVS_ZONE_LIMIT_DEFAULT_ZONE -1 1009 1010struct ovs_zone_limit { 1011 int zone_id; 1012 __u32 limit; 1013 __u32 count; 1014}; 1015 1016#endif /* _LINUX_OPENVSWITCH_H */ 1017