/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (c) 2007-2017 Nicira, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA */ #ifndef _UAPI__LINUX_OPENVSWITCH_H #define _UAPI__LINUX_OPENVSWITCH_H … #include <linux/types.h> #include <linux/if_ether.h> /** * struct ovs_header - header for OVS Generic Netlink messages. * @dp_ifindex: ifindex of local port for datapath (0 to make a request not * specific to a datapath). * * Attributes following the header are specific to a particular OVS Generic * Netlink family, but all of the OVS families use this header. */ struct ovs_header { … }; /* Datapaths. */ #define OVS_DATAPATH_FAMILY … #define OVS_DATAPATH_MCGROUP … /* V2: * - API users are expected to provide OVS_DP_ATTR_USER_FEATURES * when creating the datapath. */ #define OVS_DATAPATH_VERSION … /* First OVS datapath version to support features */ #define OVS_DP_VER_FEATURES … enum ovs_datapath_cmd { … }; /** * enum ovs_datapath_attr - attributes for %OVS_DP_* commands. * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local * port". This is the name of the network device whose dp_ifindex is given in * the &struct ovs_header. Always present in notifications. Required in * %OVS_DP_NEW requests. May be used as an alternative to specifying * dp_ifindex in other requests (with a dp_ifindex of 0). * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should * not be sent. * @OVS_DP_ATTR_PER_CPU_PIDS: Per-cpu array of PIDs for upcalls when * OVS_DP_F_DISPATCH_UPCALL_PER_CPU feature is set. * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the * datapath. Always present in notifications. * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the * datapath. Always present in notifications. * @OVS_DP_ATTR_IFINDEX: Interface index for a new datapath netdev. Only * valid for %OVS_DP_CMD_NEW requests. * * These attributes follow the &struct ovs_header within the Generic Netlink * payload for %OVS_DP_* commands. */ enum ovs_datapath_attr { … }; #define OVS_DP_ATTR_MAX … struct ovs_dp_stats { … }; struct ovs_dp_megaflow_stats { … }; struct ovs_vport_stats { … }; /* Allow last Netlink attribute to be unaligned */ #define OVS_DP_F_UNALIGNED … /* Allow datapath to associate multiple Netlink PIDs to each vport */ #define OVS_DP_F_VPORT_PIDS … /* Allow tc offload recirc sharing */ #define OVS_DP_F_TC_RECIRC_SHARING … /* Allow per-cpu dispatch of upcalls */ #define OVS_DP_F_DISPATCH_UPCALL_PER_CPU … /* Fixed logical ports. */ #define OVSP_LOCAL … /* Packet transfer. */ #define OVS_PACKET_FAMILY … #define OVS_PACKET_VERSION … enum ovs_packet_cmd { … }; /** * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire * packet as received, from the start of the Ethernet header onward. For * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is * the flow key extracted from the packet as originally received. * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows * userspace to adapt its flow setup strategy by comparing its notion of the * flow key against the kernel's. * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional * %OVS_USERSPACE_ATTR_ACTIONS attribute. * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content * specified there. * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the * output port is actually a tunnel port. Contains the output tunnel key * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes. * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and * @OVS_PACKET_ATTR_LEN: Packet size before truncation. * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment * size. * @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb). * * These attributes follow the &struct ovs_header within the Generic Netlink * payload for %OVS_PACKET_* commands. */ enum ovs_packet_attr { … }; #define OVS_PACKET_ATTR_MAX … /* Virtual ports. */ #define OVS_VPORT_FAMILY … #define OVS_VPORT_MCGROUP … #define OVS_VPORT_VERSION … enum ovs_vport_cmd { … }; enum ovs_vport_type { … }; #define OVS_VPORT_TYPE_MAX … /** * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type * of vport. * @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device * this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes * plus a null terminator. * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets * received on this port. If this is a single-element array of value 0, * upcalls should not be sent. * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for * packets sent or received through the vport. * * These attributes follow the &struct ovs_header within the Generic Netlink * payload for %OVS_VPORT_* commands. * * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is * optional; if not specified a free port number is automatically selected. * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type * of vport. * * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to * look up the vport to operate on; otherwise dp_idx from the &struct * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. */ enum ovs_vport_attr { … }; #define OVS_VPORT_ATTR_MAX … /** * enum ovs_vport_upcall_attr - attributes for %OVS_VPORT_UPCALL* commands * @OVS_VPORT_UPCALL_SUCCESS: 64-bit upcall success packets. * @OVS_VPORT_UPCALL_FAIL: 64-bit upcall fail packets. */ enum ovs_vport_upcall_attr { … }; #define OVS_VPORT_UPCALL_ATTR_MAX … enum { … }; #define OVS_VXLAN_EXT_MAX … /* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. */ enum { … }; #define OVS_TUNNEL_ATTR_MAX … /* Flows. */ #define OVS_FLOW_FAMILY … #define OVS_FLOW_MCGROUP … #define OVS_FLOW_VERSION … enum ovs_flow_cmd { … }; struct ovs_flow_stats { … }; enum ovs_key_attr { … }; #define OVS_KEY_ATTR_MAX … enum ovs_tunnel_key_attr { … }; #define OVS_TUNNEL_KEY_ATTR_MAX … /** * enum ovs_frag_type - IPv4 and IPv6 fragment type * @OVS_FRAG_TYPE_NONE: Packet is not a fragment. * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. * * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct * ovs_key_ipv6. */ enum ovs_frag_type { … }; #define OVS_FRAG_TYPE_MAX … struct ovs_key_ethernet { … }; struct ovs_key_mpls { … }; struct ovs_key_ipv4 { … }; struct ovs_key_ipv6 { … }; /* separate structure to support backward compatibility with older user space */ struct ovs_key_ipv6_exthdrs { … }; struct ovs_key_tcp { … }; struct ovs_key_udp { … }; struct ovs_key_sctp { … }; struct ovs_key_icmp { … }; struct ovs_key_icmpv6 { … }; struct ovs_key_arp { … }; struct ovs_key_nd { … }; #define OVS_CT_LABELS_LEN_32 … #define OVS_CT_LABELS_LEN … struct ovs_key_ct_labels { … }; /* OVS_KEY_ATTR_CT_STATE flags */ #define OVS_CS_F_NEW … #define OVS_CS_F_ESTABLISHED … #define OVS_CS_F_RELATED … #define OVS_CS_F_REPLY_DIR … #define OVS_CS_F_INVALID … #define OVS_CS_F_TRACKED … #define OVS_CS_F_SRC_NAT … #define OVS_CS_F_DST_NAT … #define OVS_CS_F_NAT_MASK … struct ovs_key_ct_tuple_ipv4 { … }; struct ovs_key_ct_tuple_ipv6 { … }; enum ovs_nsh_key_attr { … }; #define OVS_NSH_KEY_ATTR_MAX … struct ovs_nsh_key_base { … }; #define NSH_MD1_CONTEXT_SIZE … struct ovs_nsh_key_md1 { … }; /** * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow * key. Always present in notifications. Required for all requests (except * dumps). * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying * the actions to take for packets that match the key. Always present in * notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for * %OVS_FLOW_CMD_SET requests. An %OVS_FLOW_CMD_SET without * %OVS_FLOW_ATTR_ACTIONS will not modify the actions. To clear the actions, * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given. * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this * flow. Present in notifications if the stats would be nonzero. Ignored in * requests. * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the * TCP flags seen on packets in this flow. Only present in notifications for * TCP flows, and only if it would be nonzero. Ignored in requests. * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on * the system monotonic clock, at which a packet was last processed for this * flow. Only present in notifications if a packet has been processed for this * flow. Ignored in requests. * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the * last-used time, accumulated TCP flags, and statistics for this flow. * Otherwise ignored in requests. Never present in notifications. * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the * mask bits for wildcarded flow match. Mask bit value '1' specifies exact * match with corresponding flow key bit, while mask bit value '0' specifies * a wildcarded match. Omitting attribute is treated as wildcarding all * corresponding fields. Optional for all requests. If not present, * all flow key bits are exact match bits. * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique * identifier for the flow. Causes the flow to be indexed by this value rather * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all * requests. Present in notifications if the flow was created with this * attribute. * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_* * flags that provide alternative semantics for flow installation and * retrieval. Optional for all requests. * * These attributes follow the &struct ovs_header within the Generic Netlink * payload for %OVS_FLOW_* commands. */ enum ovs_flow_attr { … }; #define OVS_FLOW_ATTR_MAX … /** * Omit attributes for notifications. * * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath * may omit the corresponding %OVS_FLOW_ATTR_* from the response. */ #define OVS_UFID_F_OMIT_KEY … #define OVS_UFID_F_OMIT_MASK … #define OVS_UFID_F_OMIT_ACTIONS … /** * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of * %UINT32_MAX samples all packets and intermediate values sample intermediate * fractions of packets. * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. * Actions are passed as nested attributes. * * Executes the specified actions with the given probability on a per-packet * basis. Nested actions will be able to access the probability value of the * parent @OVS_ACTION_ATTR_SAMPLE. */ enum ovs_sample_attr { … }; #define OVS_SAMPLE_ATTR_MAX … #ifdef __KERNEL__ struct sample_arg { … }; #endif /** * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action. * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION * message should be sent. Required. * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA. * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get * tunnel info. * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall. */ enum ovs_userspace_attr { … }; #define OVS_USERSPACE_ATTR_MAX … struct ovs_action_trunc { … }; /** * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument. * @mpls_lse: MPLS label stack entry to push. * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame. * * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected. */ struct ovs_action_push_mpls { … }; /** * struct ovs_action_add_mpls - %OVS_ACTION_ATTR_ADD_MPLS action * argument. * @mpls_lse: MPLS label stack entry to push. * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame. * @tun_flags: MPLS tunnel attributes. * * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected. */ struct ovs_action_add_mpls { … }; #define OVS_MPLS_L3_TUNNEL_FLAG_MASK … /** * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument. * @vlan_tpid: Tag protocol identifier (TPID) to push. * @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set * (but it will not be set in the 802.1Q header that is pushed). * * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD. * The only acceptable TPID values are those that the kernel module also parses * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results. */ struct ovs_action_push_vlan { … }; /* Data path hash algorithm for computing Datapath hash. * * The algorithm type only specifies the fields in a flow * will be used as part of the hash. Each datapath is free * to use its own hash algorithm. The hash value will be * opaque to the user space daemon. */ enum ovs_hash_alg { … }; /* * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument. * @hash_alg: Algorithm used to compute hash prior to recirculation. * @hash_basis: basis used for computing hash. */ struct ovs_action_hash { … }; /** * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action. * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack * table. This allows future packets for the same connection to be identified * as 'established' or 'related'. The flow key for the current packet will * retain the pre-commit connection state. * @OVS_CT_ATTR_ZONE: u16 connection tracking zone. * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the * mask, the corresponding bit in the value is copied to the connection * tracking mark field in the connection. * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN * mask. For each bit set in the mask, the corresponding bit in the value is * copied to the connection tracking label field in the connection. * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG. * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address * translation (NAT) on the packet. * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing * nothing if the connection is already committed will check that the current * packet is in conntrack entry's original direction. If directionality does * not match, will delete the existing conntrack entry and commit a new one. * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types * (enum ip_conntrack_events IPCT_*) should be reported. For any bit set to * zero, the corresponding event type is not generated. Default behavior * depends on system configuration, but typically all event types are * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot * of events. Explicitly passing this attribute allows limiting the updates * received to the events of interest. The bit 1 << IPCT_NEW, 1 << * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups, * respectively. Remaining bits control the changes for which an event is * delivered on the NFNLGRP_CONNTRACK_UPDATE group. * @OVS_CT_ATTR_TIMEOUT: Variable length string defining conntrack timeout. */ enum ovs_ct_attr { … }; #define OVS_CT_ATTR_MAX … /** * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT. * * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port). * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination * address/port). Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be * specified. Effective only for packets for ct_state NEW connections. * Packets of committed connections are mangled by the NAT action according to * the committed NAT type regardless of the flags specified. As a corollary, a * NAT action without a NAT type flag will only mangle packets of committed * connections. The following NAT attributes only apply for NEW * (non-committed) connections, and they may be included only when the CT * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or * @OVS_NAT_ATTR_DST is also included. * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port) * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port) * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5) * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping */ enum ovs_nat_attr { … }; #define OVS_NAT_ATTR_MAX … /* * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument. * @addresses: Source and destination MAC addresses. * @eth_type: Ethernet type */ struct ovs_action_push_eth { … }; /* * enum ovs_check_pkt_len_attr - Attributes for %OVS_ACTION_ATTR_CHECK_PKT_LEN. * * @OVS_CHECK_PKT_LEN_ATTR_PKT_LEN: u16 Packet length to check for. * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER: Nested OVS_ACTION_ATTR_* * actions to apply if the packer length is greater than the specified * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. * @OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested OVS_ACTION_ATTR_* * actions to apply if the packer length is lesser or equal to the specified * length in the attr - OVS_CHECK_PKT_LEN_ATTR_PKT_LEN. */ enum ovs_check_pkt_len_attr { … }; #define OVS_CHECK_PKT_LEN_ATTR_MAX … #ifdef __KERNEL__ struct check_pkt_len_arg { … }; #endif #define OVS_PSAMPLE_COOKIE_MAX_SIZE … /** * enum ovs_psample_attr - Attributes for %OVS_ACTION_ATTR_PSAMPLE * action. * * @OVS_PSAMPLE_ATTR_GROUP: 32-bit number to identify the source of the * sample. * @OVS_PSAMPLE_ATTR_COOKIE: An optional variable-length binary cookie that * contains user-defined metadata. The maximum length is * OVS_PSAMPLE_COOKIE_MAX_SIZE bytes. * * Sends the packet to the psample multicast group with the specified group and * cookie. It is possible to combine this action with the * %OVS_ACTION_ATTR_TRUNC action to limit the size of the sample. */ enum ovs_psample_attr { … }; #define OVS_PSAMPLE_ATTR_MAX … /** * enum ovs_action_attr - Action types. * * @OVS_ACTION_ATTR_OUTPUT: Output packet to port. * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size. * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested * %OVS_USERSPACE_ATTR_* attributes. * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header. The * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its * value. * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header. A * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value, * and a mask. For every bit set in the mask, the corresponding bit value * is copied from the value to the packet header field, rest of the bits are * left unchanged. The non-masked value bits must be passed in as zeroes. * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute. * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header * onto the packet. * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header * from the packet. * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in * the nested %OVS_SAMPLE_ATTR_* attributes. * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the * top of the packets MPLS label stack. Set the ethertype of the * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to * indicate the new packet contents. * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the * packet's MPLS label stack. Set the encapsulating frame's ethertype to * indicate the new packet contents. This could potentially still be * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there * is no MPLS label stack, as determined by ethertype, no action is taken. * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related * entries in the flow key. * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the * packet. * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the * packet. * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet. * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet. * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet. * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the * packet, or modify the packet (e.g., change the DSCP field). * @OVS_ACTION_ATTR_CLONE: make a copy of the packet and execute a list of * actions without affecting the original packet and key. * @OVS_ACTION_ATTR_CHECK_PKT_LEN: Check the packet length and execute a set * of actions if greater than the specified packet length, else execute * another set of actions. * @OVS_ACTION_ATTR_ADD_MPLS: Push a new MPLS label stack entry at the * start of the packet or at the start of the l3 header depending on the value * of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS * argument. * @OVS_ACTION_ATTR_DROP: Explicit drop action. * @OVS_ACTION_ATTR_PSAMPLE: Send a sample of the packet to external observers * via psample. * * Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all * fields within a header are modifiable, e.g. the IPv4 protocol and fragment * type may not be changed. * * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated * from the @OVS_ACTION_ATTR_SET. */ enum ovs_action_attr { … }; #define OVS_ACTION_ATTR_MAX … /* Meters. */ #define OVS_METER_FAMILY … #define OVS_METER_MCGROUP … #define OVS_METER_VERSION … enum ovs_meter_cmd { … }; enum ovs_meter_attr { … }; #define OVS_METER_ATTR_MAX … enum ovs_band_attr { … }; #define OVS_BAND_ATTR_MAX … enum ovs_meter_band_type { … }; #define OVS_METER_BAND_TYPE_MAX … /* Conntrack limit */ #define OVS_CT_LIMIT_FAMILY … #define OVS_CT_LIMIT_MCGROUP … #define OVS_CT_LIMIT_VERSION … enum ovs_ct_limit_cmd { … }; enum ovs_ct_limit_attr { … }; #define OVS_CT_LIMIT_ATTR_MAX … #define OVS_ZONE_LIMIT_DEFAULT_ZONE … struct ovs_zone_limit { … }; enum ovs_dec_ttl_attr { … }; #define OVS_DEC_TTL_ATTR_MAX … #endif /* _LINUX_OPENVSWITCH_H */
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