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1063 lines
39 KiB
1063 lines
39 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/* |
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* Copyright (c) 2007-2017 Nicira, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of version 2 of the GNU General Public |
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* License as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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* 02110-1301, USA |
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*/ |
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#ifndef _UAPI__LINUX_OPENVSWITCH_H |
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#define _UAPI__LINUX_OPENVSWITCH_H 1 |
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#include <linux/types.h> |
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#include <linux/if_ether.h> |
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/** |
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* struct ovs_header - header for OVS Generic Netlink messages. |
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* @dp_ifindex: ifindex of local port for datapath (0 to make a request not |
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* specific to a datapath). |
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* |
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* Attributes following the header are specific to a particular OVS Generic |
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* Netlink family, but all of the OVS families use this header. |
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*/ |
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struct ovs_header { |
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int dp_ifindex; |
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}; |
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/* Datapaths. */ |
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#define OVS_DATAPATH_FAMILY "ovs_datapath" |
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#define OVS_DATAPATH_MCGROUP "ovs_datapath" |
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/* V2: |
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* - API users are expected to provide OVS_DP_ATTR_USER_FEATURES |
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* when creating the datapath. |
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*/ |
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#define OVS_DATAPATH_VERSION 2 |
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|
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/* First OVS datapath version to support features */ |
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#define OVS_DP_VER_FEATURES 2 |
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enum ovs_datapath_cmd { |
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OVS_DP_CMD_UNSPEC, |
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OVS_DP_CMD_NEW, |
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OVS_DP_CMD_DEL, |
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OVS_DP_CMD_GET, |
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OVS_DP_CMD_SET |
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}; |
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/** |
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* enum ovs_datapath_attr - attributes for %OVS_DP_* commands. |
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* @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local |
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* port". This is the name of the network device whose dp_ifindex is given in |
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* the &struct ovs_header. Always present in notifications. Required in |
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* %OVS_DP_NEW requests. May be used as an alternative to specifying |
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* dp_ifindex in other requests (with a dp_ifindex of 0). |
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* @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially |
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* set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on |
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* %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should |
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* not be sent. |
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* @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the |
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* datapath. Always present in notifications. |
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* @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the |
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* datapath. Always present in notifications. |
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* |
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* These attributes follow the &struct ovs_header within the Generic Netlink |
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* payload for %OVS_DP_* commands. |
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*/ |
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enum ovs_datapath_attr { |
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OVS_DP_ATTR_UNSPEC, |
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OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */ |
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OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */ |
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OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */ |
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OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */ |
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OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */ |
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OVS_DP_ATTR_PAD, |
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OVS_DP_ATTR_MASKS_CACHE_SIZE, |
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__OVS_DP_ATTR_MAX |
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}; |
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#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) |
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struct ovs_dp_stats { |
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__u64 n_hit; /* Number of flow table matches. */ |
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__u64 n_missed; /* Number of flow table misses. */ |
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__u64 n_lost; /* Number of misses not sent to userspace. */ |
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__u64 n_flows; /* Number of flows present */ |
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}; |
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struct ovs_dp_megaflow_stats { |
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__u64 n_mask_hit; /* Number of masks used for flow lookups. */ |
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__u32 n_masks; /* Number of masks for the datapath. */ |
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__u32 pad0; /* Pad for future expension. */ |
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__u64 n_cache_hit; /* Number of cache matches for flow lookups. */ |
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__u64 pad1; /* Pad for future expension. */ |
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}; |
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struct ovs_vport_stats { |
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__u64 rx_packets; /* total packets received */ |
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__u64 tx_packets; /* total packets transmitted */ |
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__u64 rx_bytes; /* total bytes received */ |
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__u64 tx_bytes; /* total bytes transmitted */ |
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__u64 rx_errors; /* bad packets received */ |
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__u64 tx_errors; /* packet transmit problems */ |
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__u64 rx_dropped; /* no space in linux buffers */ |
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__u64 tx_dropped; /* no space available in linux */ |
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}; |
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/* Allow last Netlink attribute to be unaligned */ |
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#define OVS_DP_F_UNALIGNED (1 << 0) |
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/* Allow datapath to associate multiple Netlink PIDs to each vport */ |
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#define OVS_DP_F_VPORT_PIDS (1 << 1) |
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/* Allow tc offload recirc sharing */ |
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#define OVS_DP_F_TC_RECIRC_SHARING (1 << 2) |
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/* Fixed logical ports. */ |
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#define OVSP_LOCAL ((__u32)0) |
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/* Packet transfer. */ |
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#define OVS_PACKET_FAMILY "ovs_packet" |
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#define OVS_PACKET_VERSION 0x1 |
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enum ovs_packet_cmd { |
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OVS_PACKET_CMD_UNSPEC, |
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/* Kernel-to-user notifications. */ |
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OVS_PACKET_CMD_MISS, /* Flow table miss. */ |
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OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */ |
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/* Userspace commands. */ |
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OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ |
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}; |
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/** |
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* enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. |
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* @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire |
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* packet as received, from the start of the Ethernet header onward. For |
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* %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by |
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* actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is |
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* the flow key extracted from the packet as originally received. |
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* @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key |
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* extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows |
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* userspace to adapt its flow setup strategy by comparing its notion of the |
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* flow key against the kernel's. |
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* @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used |
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* for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes. |
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* Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional |
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* %OVS_USERSPACE_ATTR_ACTIONS attribute. |
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* @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION |
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* notification if the %OVS_ACTION_ATTR_USERSPACE action specified an |
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* %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content |
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* specified there. |
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* @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION |
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* notification if the %OVS_ACTION_ATTR_USERSPACE action specified an |
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* %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the |
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* output port is actually a tunnel port. Contains the output tunnel key |
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* extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes. |
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* @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and |
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* @OVS_PACKET_ATTR_LEN: Packet size before truncation. |
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* %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment |
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* size. |
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* @OVS_PACKET_ATTR_HASH: Packet hash info (e.g. hash, sw_hash and l4_hash in skb). |
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* |
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* These attributes follow the &struct ovs_header within the Generic Netlink |
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* payload for %OVS_PACKET_* commands. |
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*/ |
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enum ovs_packet_attr { |
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OVS_PACKET_ATTR_UNSPEC, |
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OVS_PACKET_ATTR_PACKET, /* Packet data. */ |
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OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */ |
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OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
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OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ |
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OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_* |
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attributes. */ |
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OVS_PACKET_ATTR_UNUSED1, |
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OVS_PACKET_ATTR_UNUSED2, |
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OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe, |
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error logging should be suppressed. */ |
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OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */ |
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OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */ |
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OVS_PACKET_ATTR_HASH, /* Packet hash. */ |
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__OVS_PACKET_ATTR_MAX |
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}; |
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#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) |
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/* Virtual ports. */ |
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#define OVS_VPORT_FAMILY "ovs_vport" |
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#define OVS_VPORT_MCGROUP "ovs_vport" |
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#define OVS_VPORT_VERSION 0x1 |
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enum ovs_vport_cmd { |
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OVS_VPORT_CMD_UNSPEC, |
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OVS_VPORT_CMD_NEW, |
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OVS_VPORT_CMD_DEL, |
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OVS_VPORT_CMD_GET, |
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OVS_VPORT_CMD_SET |
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}; |
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enum ovs_vport_type { |
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OVS_VPORT_TYPE_UNSPEC, |
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OVS_VPORT_TYPE_NETDEV, /* network device */ |
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OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ |
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OVS_VPORT_TYPE_GRE, /* GRE tunnel. */ |
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OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */ |
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OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */ |
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__OVS_VPORT_TYPE_MAX |
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}; |
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#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) |
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/** |
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* enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. |
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* @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. |
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* @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type |
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* of vport. |
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* @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device |
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* this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes |
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* plus a null terminator. |
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* @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information. |
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* @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace |
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* among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets |
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* received on this port. If this is a single-element array of value 0, |
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* upcalls should not be sent. |
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* @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for |
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* packets sent or received through the vport. |
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* |
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* These attributes follow the &struct ovs_header within the Generic Netlink |
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* payload for %OVS_VPORT_* commands. |
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* |
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* For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and |
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* %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is |
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* optional; if not specified a free port number is automatically selected. |
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* Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type |
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* of vport. |
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* |
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* For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to |
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* look up the vport to operate on; otherwise dp_idx from the &struct |
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* ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. |
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*/ |
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enum ovs_vport_attr { |
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OVS_VPORT_ATTR_UNSPEC, |
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OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */ |
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OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */ |
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OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ |
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OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ |
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OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */ |
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/* receiving upcalls */ |
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OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */ |
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OVS_VPORT_ATTR_PAD, |
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OVS_VPORT_ATTR_IFINDEX, |
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OVS_VPORT_ATTR_NETNSID, |
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__OVS_VPORT_ATTR_MAX |
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}; |
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#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) |
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enum { |
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OVS_VXLAN_EXT_UNSPEC, |
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OVS_VXLAN_EXT_GBP, /* Flag or __u32 */ |
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__OVS_VXLAN_EXT_MAX, |
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}; |
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#define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1) |
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/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels. |
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*/ |
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enum { |
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OVS_TUNNEL_ATTR_UNSPEC, |
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OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */ |
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OVS_TUNNEL_ATTR_EXTENSION, |
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__OVS_TUNNEL_ATTR_MAX |
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}; |
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#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1) |
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/* Flows. */ |
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#define OVS_FLOW_FAMILY "ovs_flow" |
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#define OVS_FLOW_MCGROUP "ovs_flow" |
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#define OVS_FLOW_VERSION 0x1 |
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enum ovs_flow_cmd { |
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OVS_FLOW_CMD_UNSPEC, |
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OVS_FLOW_CMD_NEW, |
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OVS_FLOW_CMD_DEL, |
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OVS_FLOW_CMD_GET, |
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OVS_FLOW_CMD_SET |
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}; |
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struct ovs_flow_stats { |
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__u64 n_packets; /* Number of matched packets. */ |
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__u64 n_bytes; /* Number of matched bytes. */ |
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}; |
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enum ovs_key_attr { |
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OVS_KEY_ATTR_UNSPEC, |
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OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */ |
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OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */ |
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OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */ |
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OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ |
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OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */ |
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OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */ |
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OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ |
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OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ |
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OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ |
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OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ |
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OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ |
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OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ |
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OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ |
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OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ |
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OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */ |
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OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */ |
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OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */ |
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OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */ |
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OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash |
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is not computed by the datapath. */ |
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OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */ |
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OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls. |
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* The implementation may restrict |
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* the accepted length of the array. */ |
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OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */ |
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OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */ |
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OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */ |
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OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */ |
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OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */ |
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OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */ |
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OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */ |
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#ifdef __KERNEL__ |
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OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */ |
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#endif |
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__OVS_KEY_ATTR_MAX |
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}; |
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#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) |
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enum ovs_tunnel_key_attr { |
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/* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */ |
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OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */ |
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OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */ |
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OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */ |
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OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */ |
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OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */ |
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OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */ |
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OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */ |
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OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */ |
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OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */ |
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OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */ |
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OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */ |
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OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */ |
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OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */ |
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OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */ |
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OVS_TUNNEL_KEY_ATTR_PAD, |
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OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */ |
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OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/ |
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__OVS_TUNNEL_KEY_ATTR_MAX |
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}; |
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#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1) |
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|
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/** |
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* enum ovs_frag_type - IPv4 and IPv6 fragment type |
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* @OVS_FRAG_TYPE_NONE: Packet is not a fragment. |
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* @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0. |
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* @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset. |
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* |
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* Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct |
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* ovs_key_ipv6. |
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*/ |
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enum ovs_frag_type { |
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OVS_FRAG_TYPE_NONE, |
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OVS_FRAG_TYPE_FIRST, |
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OVS_FRAG_TYPE_LATER, |
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__OVS_FRAG_TYPE_MAX |
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}; |
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#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1) |
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struct ovs_key_ethernet { |
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__u8 eth_src[ETH_ALEN]; |
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__u8 eth_dst[ETH_ALEN]; |
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}; |
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struct ovs_key_mpls { |
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__be32 mpls_lse; |
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}; |
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struct ovs_key_ipv4 { |
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__be32 ipv4_src; |
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__be32 ipv4_dst; |
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__u8 ipv4_proto; |
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__u8 ipv4_tos; |
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__u8 ipv4_ttl; |
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__u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */ |
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}; |
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struct ovs_key_ipv6 { |
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__be32 ipv6_src[4]; |
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__be32 ipv6_dst[4]; |
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__be32 ipv6_label; /* 20-bits in least-significant bits. */ |
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__u8 ipv6_proto; |
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__u8 ipv6_tclass; |
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__u8 ipv6_hlimit; |
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__u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */ |
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}; |
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|
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struct ovs_key_tcp { |
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__be16 tcp_src; |
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__be16 tcp_dst; |
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}; |
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struct ovs_key_udp { |
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__be16 udp_src; |
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__be16 udp_dst; |
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}; |
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|
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struct ovs_key_sctp { |
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__be16 sctp_src; |
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__be16 sctp_dst; |
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}; |
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|
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struct ovs_key_icmp { |
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__u8 icmp_type; |
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__u8 icmp_code; |
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}; |
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struct ovs_key_icmpv6 { |
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__u8 icmpv6_type; |
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__u8 icmpv6_code; |
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}; |
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|
|
struct ovs_key_arp { |
|
__be32 arp_sip; |
|
__be32 arp_tip; |
|
__be16 arp_op; |
|
__u8 arp_sha[ETH_ALEN]; |
|
__u8 arp_tha[ETH_ALEN]; |
|
}; |
|
|
|
struct ovs_key_nd { |
|
__be32 nd_target[4]; |
|
__u8 nd_sll[ETH_ALEN]; |
|
__u8 nd_tll[ETH_ALEN]; |
|
}; |
|
|
|
#define OVS_CT_LABELS_LEN_32 4 |
|
#define OVS_CT_LABELS_LEN (OVS_CT_LABELS_LEN_32 * sizeof(__u32)) |
|
struct ovs_key_ct_labels { |
|
union { |
|
__u8 ct_labels[OVS_CT_LABELS_LEN]; |
|
__u32 ct_labels_32[OVS_CT_LABELS_LEN_32]; |
|
}; |
|
}; |
|
|
|
/* OVS_KEY_ATTR_CT_STATE flags */ |
|
#define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */ |
|
#define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */ |
|
#define OVS_CS_F_RELATED 0x04 /* Related to an established |
|
* connection. */ |
|
#define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */ |
|
#define OVS_CS_F_INVALID 0x10 /* Could not track connection. */ |
|
#define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */ |
|
#define OVS_CS_F_SRC_NAT 0x40 /* Packet's source address/port was |
|
* mangled by NAT. |
|
*/ |
|
#define OVS_CS_F_DST_NAT 0x80 /* Packet's destination address/port |
|
* was mangled by NAT. |
|
*/ |
|
|
|
#define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT) |
|
|
|
struct ovs_key_ct_tuple_ipv4 { |
|
__be32 ipv4_src; |
|
__be32 ipv4_dst; |
|
__be16 src_port; |
|
__be16 dst_port; |
|
__u8 ipv4_proto; |
|
}; |
|
|
|
struct ovs_key_ct_tuple_ipv6 { |
|
__be32 ipv6_src[4]; |
|
__be32 ipv6_dst[4]; |
|
__be16 src_port; |
|
__be16 dst_port; |
|
__u8 ipv6_proto; |
|
}; |
|
|
|
enum ovs_nsh_key_attr { |
|
OVS_NSH_KEY_ATTR_UNSPEC, |
|
OVS_NSH_KEY_ATTR_BASE, /* struct ovs_nsh_key_base. */ |
|
OVS_NSH_KEY_ATTR_MD1, /* struct ovs_nsh_key_md1. */ |
|
OVS_NSH_KEY_ATTR_MD2, /* variable-length octets for MD type 2. */ |
|
__OVS_NSH_KEY_ATTR_MAX |
|
}; |
|
|
|
#define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1) |
|
|
|
struct ovs_nsh_key_base { |
|
__u8 flags; |
|
__u8 ttl; |
|
__u8 mdtype; |
|
__u8 np; |
|
__be32 path_hdr; |
|
}; |
|
|
|
#define NSH_MD1_CONTEXT_SIZE 4 |
|
|
|
struct ovs_nsh_key_md1 { |
|
__be32 context[NSH_MD1_CONTEXT_SIZE]; |
|
}; |
|
|
|
/** |
|
* 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 { |
|
OVS_FLOW_ATTR_UNSPEC, |
|
OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */ |
|
OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
|
OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */ |
|
OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ |
|
OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ |
|
OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ |
|
OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */ |
|
OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error |
|
* logging should be suppressed. */ |
|
OVS_FLOW_ATTR_UFID, /* Variable length unique flow identifier. */ |
|
OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */ |
|
OVS_FLOW_ATTR_PAD, |
|
__OVS_FLOW_ATTR_MAX |
|
}; |
|
|
|
#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) |
|
|
|
/** |
|
* 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 (1 << 0) |
|
#define OVS_UFID_F_OMIT_MASK (1 << 1) |
|
#define OVS_UFID_F_OMIT_ACTIONS (1 << 2) |
|
|
|
/** |
|
* 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. |
|
*/ |
|
enum ovs_sample_attr { |
|
OVS_SAMPLE_ATTR_UNSPEC, |
|
OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ |
|
OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
|
__OVS_SAMPLE_ATTR_MAX, |
|
|
|
#ifdef __KERNEL__ |
|
OVS_SAMPLE_ATTR_ARG /* struct sample_arg */ |
|
#endif |
|
}; |
|
|
|
#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1) |
|
|
|
#ifdef __KERNEL__ |
|
struct sample_arg { |
|
bool exec; /* When true, actions in sample will not |
|
* change flow keys. False otherwise. |
|
*/ |
|
u32 probability; /* Same value as |
|
* 'OVS_SAMPLE_ATTR_PROBABILITY'. |
|
*/ |
|
}; |
|
#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 { |
|
OVS_USERSPACE_ATTR_UNSPEC, |
|
OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */ |
|
OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */ |
|
OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port |
|
* to get tunnel info. */ |
|
OVS_USERSPACE_ATTR_ACTIONS, /* Optional flag to get actions. */ |
|
__OVS_USERSPACE_ATTR_MAX |
|
}; |
|
|
|
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1) |
|
|
|
struct ovs_action_trunc { |
|
__u32 max_len; /* Max packet size in bytes. */ |
|
}; |
|
|
|
/** |
|
* 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 { |
|
__be32 mpls_lse; |
|
__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */ |
|
}; |
|
|
|
/** |
|
* 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 { |
|
__be32 mpls_lse; |
|
__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */ |
|
__u16 tun_flags; |
|
}; |
|
|
|
#define OVS_MPLS_L3_TUNNEL_FLAG_MASK (1 << 0) /* Flag to specify the place of |
|
* insertion of MPLS header. |
|
* When false, the MPLS header |
|
* will be inserted at the start |
|
* of the packet. |
|
* When true, the MPLS header |
|
* will be inserted at the start |
|
* of the l3 header. |
|
*/ |
|
|
|
/** |
|
* 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 { |
|
__be16 vlan_tpid; /* 802.1Q or 802.1ad TPID. */ |
|
__be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */ |
|
}; |
|
|
|
/* 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 { |
|
OVS_HASH_ALG_L4, |
|
}; |
|
|
|
/* |
|
* 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 { |
|
__u32 hash_alg; /* One of ovs_hash_alg. */ |
|
__u32 hash_basis; |
|
}; |
|
|
|
/** |
|
* 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 { |
|
OVS_CT_ATTR_UNSPEC, |
|
OVS_CT_ATTR_COMMIT, /* No argument, commits connection. */ |
|
OVS_CT_ATTR_ZONE, /* u16 zone id. */ |
|
OVS_CT_ATTR_MARK, /* mark to associate with this connection. */ |
|
OVS_CT_ATTR_LABELS, /* labels to associate with this connection. */ |
|
OVS_CT_ATTR_HELPER, /* netlink helper to assist detection of |
|
related connections. */ |
|
OVS_CT_ATTR_NAT, /* Nested OVS_NAT_ATTR_* */ |
|
OVS_CT_ATTR_FORCE_COMMIT, /* No argument */ |
|
OVS_CT_ATTR_EVENTMASK, /* u32 mask of IPCT_* events. */ |
|
OVS_CT_ATTR_TIMEOUT, /* Associate timeout with this connection for |
|
* fine-grain timeout tuning. */ |
|
__OVS_CT_ATTR_MAX |
|
}; |
|
|
|
#define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1) |
|
|
|
/** |
|
* 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 { |
|
OVS_NAT_ATTR_UNSPEC, |
|
OVS_NAT_ATTR_SRC, |
|
OVS_NAT_ATTR_DST, |
|
OVS_NAT_ATTR_IP_MIN, |
|
OVS_NAT_ATTR_IP_MAX, |
|
OVS_NAT_ATTR_PROTO_MIN, |
|
OVS_NAT_ATTR_PROTO_MAX, |
|
OVS_NAT_ATTR_PERSISTENT, |
|
OVS_NAT_ATTR_PROTO_HASH, |
|
OVS_NAT_ATTR_PROTO_RANDOM, |
|
__OVS_NAT_ATTR_MAX, |
|
}; |
|
|
|
#define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1) |
|
|
|
/* |
|
* 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 { |
|
struct ovs_key_ethernet addresses; |
|
}; |
|
|
|
/* |
|
* 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 { |
|
OVS_CHECK_PKT_LEN_ATTR_UNSPEC, |
|
OVS_CHECK_PKT_LEN_ATTR_PKT_LEN, |
|
OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER, |
|
OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL, |
|
__OVS_CHECK_PKT_LEN_ATTR_MAX, |
|
|
|
#ifdef __KERNEL__ |
|
OVS_CHECK_PKT_LEN_ATTR_ARG /* struct check_pkt_len_arg */ |
|
#endif |
|
}; |
|
|
|
#define OVS_CHECK_PKT_LEN_ATTR_MAX (__OVS_CHECK_PKT_LEN_ATTR_MAX - 1) |
|
|
|
#ifdef __KERNEL__ |
|
struct check_pkt_len_arg { |
|
u16 pkt_len; /* Same value as OVS_CHECK_PKT_LEN_ATTR_PKT_LEN'. */ |
|
bool exec_for_greater; /* When true, actions in IF_GREATER will |
|
* not change flow keys. False otherwise. |
|
*/ |
|
bool exec_for_lesser_equal; /* When true, actions in IF_LESS_EQUAL |
|
* will not change flow keys. False |
|
* otherwise. |
|
*/ |
|
}; |
|
#endif |
|
|
|
/** |
|
* 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. |
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* Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute. |
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* @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header |
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* onto the packet. |
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* @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header |
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* from the packet. |
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* @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in |
|
* the nested %OVS_SAMPLE_ATTR_* attributes. |
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* @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the |
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* 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 |
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* indicate the new packet contents. |
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* @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 |
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* entries in the flow key. |
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* @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. |
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* @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet. |
|
* @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet. |
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* @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. |
|
* |
|
* 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 { |
|
OVS_ACTION_ATTR_UNSPEC, |
|
OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */ |
|
OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */ |
|
OVS_ACTION_ATTR_SET, /* One nested OVS_KEY_ATTR_*. */ |
|
OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */ |
|
OVS_ACTION_ATTR_POP_VLAN, /* No argument. */ |
|
OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */ |
|
OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */ |
|
OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */ |
|
OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */ |
|
OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */ |
|
OVS_ACTION_ATTR_SET_MASKED, /* One nested OVS_KEY_ATTR_* including |
|
* data immediately followed by a mask. |
|
* The data must be zero for the unmasked |
|
* bits. */ |
|
OVS_ACTION_ATTR_CT, /* Nested OVS_CT_ATTR_* . */ |
|
OVS_ACTION_ATTR_TRUNC, /* u32 struct ovs_action_trunc. */ |
|
OVS_ACTION_ATTR_PUSH_ETH, /* struct ovs_action_push_eth. */ |
|
OVS_ACTION_ATTR_POP_ETH, /* No argument. */ |
|
OVS_ACTION_ATTR_CT_CLEAR, /* No argument. */ |
|
OVS_ACTION_ATTR_PUSH_NSH, /* Nested OVS_NSH_KEY_ATTR_*. */ |
|
OVS_ACTION_ATTR_POP_NSH, /* No argument. */ |
|
OVS_ACTION_ATTR_METER, /* u32 meter ID. */ |
|
OVS_ACTION_ATTR_CLONE, /* Nested OVS_CLONE_ATTR_*. */ |
|
OVS_ACTION_ATTR_CHECK_PKT_LEN, /* Nested OVS_CHECK_PKT_LEN_ATTR_*. */ |
|
OVS_ACTION_ATTR_ADD_MPLS, /* struct ovs_action_add_mpls. */ |
|
OVS_ACTION_ATTR_DEC_TTL, /* Nested OVS_DEC_TTL_ATTR_*. */ |
|
|
|
__OVS_ACTION_ATTR_MAX, /* Nothing past this will be accepted |
|
* from userspace. */ |
|
|
|
#ifdef __KERNEL__ |
|
OVS_ACTION_ATTR_SET_TO_MASKED, /* Kernel module internal masked |
|
* set action converted from |
|
* OVS_ACTION_ATTR_SET. */ |
|
#endif |
|
}; |
|
|
|
#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) |
|
|
|
/* Meters. */ |
|
#define OVS_METER_FAMILY "ovs_meter" |
|
#define OVS_METER_MCGROUP "ovs_meter" |
|
#define OVS_METER_VERSION 0x1 |
|
|
|
enum ovs_meter_cmd { |
|
OVS_METER_CMD_UNSPEC, |
|
OVS_METER_CMD_FEATURES, /* Get features supported by the datapath. */ |
|
OVS_METER_CMD_SET, /* Add or modify a meter. */ |
|
OVS_METER_CMD_DEL, /* Delete a meter. */ |
|
OVS_METER_CMD_GET /* Get meter stats. */ |
|
}; |
|
|
|
enum ovs_meter_attr { |
|
OVS_METER_ATTR_UNSPEC, |
|
OVS_METER_ATTR_ID, /* u32 meter ID within datapath. */ |
|
OVS_METER_ATTR_KBPS, /* No argument. If set, units in kilobits |
|
* per second. Otherwise, units in |
|
* packets per second. |
|
*/ |
|
OVS_METER_ATTR_STATS, /* struct ovs_flow_stats for the meter. */ |
|
OVS_METER_ATTR_BANDS, /* Nested attributes for meter bands. */ |
|
OVS_METER_ATTR_USED, /* u64 msecs last used in monotonic time. */ |
|
OVS_METER_ATTR_CLEAR, /* Flag to clear stats, used. */ |
|
OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */ |
|
OVS_METER_ATTR_MAX_BANDS, /* u32 max number of bands per meter. */ |
|
OVS_METER_ATTR_PAD, |
|
__OVS_METER_ATTR_MAX |
|
}; |
|
|
|
#define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1) |
|
|
|
enum ovs_band_attr { |
|
OVS_BAND_ATTR_UNSPEC, |
|
OVS_BAND_ATTR_TYPE, /* u32 OVS_METER_BAND_TYPE_* constant. */ |
|
OVS_BAND_ATTR_RATE, /* u32 band rate in meter units (see above). */ |
|
OVS_BAND_ATTR_BURST, /* u32 burst size in meter units. */ |
|
OVS_BAND_ATTR_STATS, /* struct ovs_flow_stats for the band. */ |
|
__OVS_BAND_ATTR_MAX |
|
}; |
|
|
|
#define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1) |
|
|
|
enum ovs_meter_band_type { |
|
OVS_METER_BAND_TYPE_UNSPEC, |
|
OVS_METER_BAND_TYPE_DROP, /* Drop exceeding packets. */ |
|
__OVS_METER_BAND_TYPE_MAX |
|
}; |
|
|
|
#define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1) |
|
|
|
/* Conntrack limit */ |
|
#define OVS_CT_LIMIT_FAMILY "ovs_ct_limit" |
|
#define OVS_CT_LIMIT_MCGROUP "ovs_ct_limit" |
|
#define OVS_CT_LIMIT_VERSION 0x1 |
|
|
|
enum ovs_ct_limit_cmd { |
|
OVS_CT_LIMIT_CMD_UNSPEC, |
|
OVS_CT_LIMIT_CMD_SET, /* Add or modify ct limit. */ |
|
OVS_CT_LIMIT_CMD_DEL, /* Delete ct limit. */ |
|
OVS_CT_LIMIT_CMD_GET /* Get ct limit. */ |
|
}; |
|
|
|
enum ovs_ct_limit_attr { |
|
OVS_CT_LIMIT_ATTR_UNSPEC, |
|
OVS_CT_LIMIT_ATTR_ZONE_LIMIT, /* Nested struct ovs_zone_limit. */ |
|
__OVS_CT_LIMIT_ATTR_MAX |
|
}; |
|
|
|
#define OVS_CT_LIMIT_ATTR_MAX (__OVS_CT_LIMIT_ATTR_MAX - 1) |
|
|
|
#define OVS_ZONE_LIMIT_DEFAULT_ZONE -1 |
|
|
|
struct ovs_zone_limit { |
|
int zone_id; |
|
__u32 limit; |
|
__u32 count; |
|
}; |
|
|
|
enum ovs_dec_ttl_attr { |
|
OVS_DEC_TTL_ATTR_UNSPEC, |
|
OVS_DEC_TTL_ATTR_ACTION, /* Nested struct nlattr */ |
|
__OVS_DEC_TTL_ATTR_MAX |
|
}; |
|
|
|
#define OVS_DEC_TTL_ATTR_MAX (__OVS_DEC_TTL_ATTR_MAX - 1) |
|
|
|
#endif /* _LINUX_OPENVSWITCH_H */
|
|
|