openvswitch: Expose <linux/openvswitch.h> to userspace
It contains the public netlink interface bits required by userspace to make use of the interface. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Thomas Graf
Jesse Gross
Родитель
14b57a1055
Коммит
22e3880a76
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@ -19,437 +19,6 @@
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#ifndef _LINUX_OPENVSWITCH_H
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#define _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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#define OVS_DATAPATH_VERSION 0x1
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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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*
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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_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_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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/* 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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* @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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*
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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_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_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 Netlink socket in userspace that
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* OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
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* this port. A value of zero indicates that 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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* and other attributes are ignored.
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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, /* u32 Netlink PID to receive upcalls */
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OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
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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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/* 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_MAX
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};
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#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
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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_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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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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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 {
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__be32 arp_sip;
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__be32 arp_tip;
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__be16 arp_op;
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__u8 arp_sha[ETH_ALEN];
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__u8 arp_tha[ETH_ALEN];
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};
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struct ovs_key_nd {
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__u32 nd_target[4];
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__u8 nd_sll[ETH_ALEN];
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__u8 nd_tll[ETH_ALEN];
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};
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/**
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* enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
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* @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
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* key. Always present in notifications. Required for all requests (except
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* dumps).
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* @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
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* the actions to take for packets that match the key. Always present in
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* notifications. Required for %OVS_FLOW_CMD_NEW requests, optional for
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* %OVS_FLOW_CMD_SET requests.
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* @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
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* flow. Present in notifications if the stats would be nonzero. Ignored in
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* requests.
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* @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
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* TCP flags seen on packets in this flow. Only present in notifications for
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* TCP flows, and only if it would be nonzero. Ignored in requests.
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* @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
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* the system monotonic clock, at which a packet was last processed for this
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* flow. Only present in notifications if a packet has been processed for this
|
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* flow. Ignored in requests.
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* @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
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* last-used time, accumulated TCP flags, and statistics for this flow.
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* Otherwise ignored in requests. Never 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_FLOW_* commands.
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*/
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enum ovs_flow_attr {
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OVS_FLOW_ATTR_UNSPEC,
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OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
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OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
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OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
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OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
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OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
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OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
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__OVS_FLOW_ATTR_MAX
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};
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#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
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/**
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* enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
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* @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
|
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* @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
|
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* %UINT32_MAX samples all packets and intermediate values sample intermediate
|
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* fractions of packets.
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* @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
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* Actions are passed as nested attributes.
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*
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* Executes the specified actions with the given probability on a per-packet
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* basis.
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*/
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enum ovs_sample_attr {
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OVS_SAMPLE_ATTR_UNSPEC,
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OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
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OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
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__OVS_SAMPLE_ATTR_MAX,
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};
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#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
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/**
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* enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
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* @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
|
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* message should be sent. Required.
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* @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
|
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* copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
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*/
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enum ovs_userspace_attr {
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OVS_USERSPACE_ATTR_UNSPEC,
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OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
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OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
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__OVS_USERSPACE_ATTR_MAX
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};
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#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
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/**
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* struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
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* @vlan_tpid: Tag protocol identifier (TPID) to push.
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* @vlan_tci: Tag control identifier (TCI) to push. The CFI bit must be set
|
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* (but it will not be set in the 802.1Q header that is pushed).
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*
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* The @vlan_tpid value is typically %ETH_P_8021Q. The only acceptable TPID
|
||||
* values are those that the kernel module also parses as 802.1Q 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 TPID. */
|
||||
__be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
|
||||
};
|
||||
|
||||
/**
|
||||
* enum ovs_action_attr - Action types.
|
||||
*
|
||||
* @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
|
||||
* @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_PUSH_VLAN: Push a new outermost 802.1Q header onto the
|
||||
* packet.
|
||||
* @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
|
||||
* @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
|
||||
* the nested %OVS_SAMPLE_ATTR_* attributes.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
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_MAX
|
||||
};
|
||||
|
||||
#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
|
||||
#include <uapi/linux/openvswitch.h>
|
||||
|
||||
#endif /* _LINUX_OPENVSWITCH_H */
|
||||
|
|
|
|||
|
|
@ -285,6 +285,7 @@ header-y += nvram.h
|
|||
header-y += omap3isp.h
|
||||
header-y += omapfb.h
|
||||
header-y += oom.h
|
||||
header-y += openvswitch.h
|
||||
header-y += packet_diag.h
|
||||
header-y += param.h
|
||||
header-y += parport.h
|
||||
|
|
|
|||
|
|
@ -0,0 +1,456 @@
|
|||
|
||||
/*
|
||||
* Copyright (c) 2007-2011 Nicira Networks.
|
||||
*
|
||||
* 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 1
|
||||
|
||||
#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 {
|
||||
int dp_ifindex;
|
||||
};
|
||||
|
||||
/* Datapaths. */
|
||||
|
||||
#define OVS_DATAPATH_FAMILY "ovs_datapath"
|
||||
#define OVS_DATAPATH_MCGROUP "ovs_datapath"
|
||||
#define OVS_DATAPATH_VERSION 0x1
|
||||
|
||||
enum ovs_datapath_cmd {
|
||||
OVS_DP_CMD_UNSPEC,
|
||||
OVS_DP_CMD_NEW,
|
||||
OVS_DP_CMD_DEL,
|
||||
OVS_DP_CMD_GET,
|
||||
OVS_DP_CMD_SET
|
||||
};
|
||||
|
||||
/**
|
||||
* 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_STATS: Statistics about packets that have passed through the
|
||||
* datapath. Always present in notifications.
|
||||
*
|
||||
* These attributes follow the &struct ovs_header within the Generic Netlink
|
||||
* payload for %OVS_DP_* commands.
|
||||
*/
|
||||
enum ovs_datapath_attr {
|
||||
OVS_DP_ATTR_UNSPEC,
|
||||
OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
|
||||
OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
|
||||
OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
|
||||
__OVS_DP_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)
|
||||
|
||||
struct ovs_dp_stats {
|
||||
__u64 n_hit; /* Number of flow table matches. */
|
||||
__u64 n_missed; /* Number of flow table misses. */
|
||||
__u64 n_lost; /* Number of misses not sent to userspace. */
|
||||
__u64 n_flows; /* Number of flows present */
|
||||
};
|
||||
|
||||
struct ovs_vport_stats {
|
||||
__u64 rx_packets; /* total packets received */
|
||||
__u64 tx_packets; /* total packets transmitted */
|
||||
__u64 rx_bytes; /* total bytes received */
|
||||
__u64 tx_bytes; /* total bytes transmitted */
|
||||
__u64 rx_errors; /* bad packets received */
|
||||
__u64 tx_errors; /* packet transmit problems */
|
||||
__u64 rx_dropped; /* no space in linux buffers */
|
||||
__u64 tx_dropped; /* no space available in linux */
|
||||
};
|
||||
|
||||
/* Fixed logical ports. */
|
||||
#define OVSP_LOCAL ((__u32)0)
|
||||
|
||||
/* Packet transfer. */
|
||||
|
||||
#define OVS_PACKET_FAMILY "ovs_packet"
|
||||
#define OVS_PACKET_VERSION 0x1
|
||||
|
||||
enum ovs_packet_cmd {
|
||||
OVS_PACKET_CMD_UNSPEC,
|
||||
|
||||
/* Kernel-to-user notifications. */
|
||||
OVS_PACKET_CMD_MISS, /* Flow table miss. */
|
||||
OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
|
||||
|
||||
/* Userspace commands. */
|
||||
OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
|
||||
};
|
||||
|
||||
/**
|
||||
* 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.
|
||||
* @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.
|
||||
*
|
||||
* These attributes follow the &struct ovs_header within the Generic Netlink
|
||||
* payload for %OVS_PACKET_* commands.
|
||||
*/
|
||||
enum ovs_packet_attr {
|
||||
OVS_PACKET_ATTR_UNSPEC,
|
||||
OVS_PACKET_ATTR_PACKET, /* Packet data. */
|
||||
OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
|
||||
OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
|
||||
OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
|
||||
__OVS_PACKET_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
|
||||
|
||||
/* Virtual ports. */
|
||||
|
||||
#define OVS_VPORT_FAMILY "ovs_vport"
|
||||
#define OVS_VPORT_MCGROUP "ovs_vport"
|
||||
#define OVS_VPORT_VERSION 0x1
|
||||
|
||||
enum ovs_vport_cmd {
|
||||
OVS_VPORT_CMD_UNSPEC,
|
||||
OVS_VPORT_CMD_NEW,
|
||||
OVS_VPORT_CMD_DEL,
|
||||
OVS_VPORT_CMD_GET,
|
||||
OVS_VPORT_CMD_SET
|
||||
};
|
||||
|
||||
enum ovs_vport_type {
|
||||
OVS_VPORT_TYPE_UNSPEC,
|
||||
OVS_VPORT_TYPE_NETDEV, /* network device */
|
||||
OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
|
||||
__OVS_VPORT_TYPE_MAX
|
||||
};
|
||||
|
||||
#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
|
||||
|
||||
/**
|
||||
* 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 Netlink socket in userspace that
|
||||
* OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
|
||||
* this port. A value of zero indicates that 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.
|
||||
* and other attributes are ignored.
|
||||
*
|
||||
* 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 {
|
||||
OVS_VPORT_ATTR_UNSPEC,
|
||||
OVS_VPORT_ATTR_PORT_NO, /* u32 port number within datapath */
|
||||
OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */
|
||||
OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
|
||||
OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
|
||||
OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */
|
||||
OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
|
||||
__OVS_VPORT_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
|
||||
|
||||
/* Flows. */
|
||||
|
||||
#define OVS_FLOW_FAMILY "ovs_flow"
|
||||
#define OVS_FLOW_MCGROUP "ovs_flow"
|
||||
#define OVS_FLOW_VERSION 0x1
|
||||
|
||||
enum ovs_flow_cmd {
|
||||
OVS_FLOW_CMD_UNSPEC,
|
||||
OVS_FLOW_CMD_NEW,
|
||||
OVS_FLOW_CMD_DEL,
|
||||
OVS_FLOW_CMD_GET,
|
||||
OVS_FLOW_CMD_SET
|
||||
};
|
||||
|
||||
struct ovs_flow_stats {
|
||||
__u64 n_packets; /* Number of matched packets. */
|
||||
__u64 n_bytes; /* Number of matched bytes. */
|
||||
};
|
||||
|
||||
enum ovs_key_attr {
|
||||
OVS_KEY_ATTR_UNSPEC,
|
||||
OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */
|
||||
OVS_KEY_ATTR_PRIORITY, /* u32 skb->priority */
|
||||
OVS_KEY_ATTR_IN_PORT, /* u32 OVS dp port number */
|
||||
OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */
|
||||
OVS_KEY_ATTR_VLAN, /* be16 VLAN TCI */
|
||||
OVS_KEY_ATTR_ETHERTYPE, /* be16 Ethernet type */
|
||||
OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */
|
||||
OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */
|
||||
OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */
|
||||
OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */
|
||||
OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */
|
||||
OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */
|
||||
OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */
|
||||
OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
|
||||
OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */
|
||||
__OVS_KEY_ATTR_MAX
|
||||
};
|
||||
|
||||
#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* 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 {
|
||||
OVS_FRAG_TYPE_NONE,
|
||||
OVS_FRAG_TYPE_FIRST,
|
||||
OVS_FRAG_TYPE_LATER,
|
||||
__OVS_FRAG_TYPE_MAX
|
||||
};
|
||||
|
||||
#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
|
||||
|
||||
struct ovs_key_ethernet {
|
||||
__u8 eth_src[ETH_ALEN];
|
||||
__u8 eth_dst[ETH_ALEN];
|
||||
};
|
||||
|
||||
struct ovs_key_ipv4 {
|
||||
__be32 ipv4_src;
|
||||
__be32 ipv4_dst;
|
||||
__u8 ipv4_proto;
|
||||
__u8 ipv4_tos;
|
||||
__u8 ipv4_ttl;
|
||||
__u8 ipv4_frag; /* One of OVS_FRAG_TYPE_*. */
|
||||
};
|
||||
|
||||
struct ovs_key_ipv6 {
|
||||
__be32 ipv6_src[4];
|
||||
__be32 ipv6_dst[4];
|
||||
__be32 ipv6_label; /* 20-bits in least-significant bits. */
|
||||
__u8 ipv6_proto;
|
||||
__u8 ipv6_tclass;
|
||||
__u8 ipv6_hlimit;
|
||||
__u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
|
||||
};
|
||||
|
||||
struct ovs_key_tcp {
|
||||
__be16 tcp_src;
|
||||
__be16 tcp_dst;
|
||||
};
|
||||
|
||||
struct ovs_key_udp {
|
||||
__be16 udp_src;
|
||||
__be16 udp_dst;
|
||||
};
|
||||
|
||||
struct ovs_key_icmp {
|
||||
__u8 icmp_type;
|
||||
__u8 icmp_code;
|
||||
};
|
||||
|
||||
struct ovs_key_icmpv6 {
|
||||
__u8 icmpv6_type;
|
||||
__u8 icmpv6_code;
|
||||
};
|
||||
|
||||
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 {
|
||||
__u32 nd_target[4];
|
||||
__u8 nd_sll[ETH_ALEN];
|
||||
__u8 nd_tll[ETH_ALEN];
|
||||
};
|
||||
|
||||
/**
|
||||
* 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.
|
||||
* @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.
|
||||
*
|
||||
* 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_MAX
|
||||
};
|
||||
|
||||
#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* 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,
|
||||
};
|
||||
|
||||
#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*/
|
||||
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_MAX
|
||||
};
|
||||
|
||||
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
|
||||
|
||||
/**
|
||||
* 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. The only acceptable TPID
|
||||
* values are those that the kernel module also parses as 802.1Q 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 TPID. */
|
||||
__be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
|
||||
};
|
||||
|
||||
/**
|
||||
* enum ovs_action_attr - Action types.
|
||||
*
|
||||
* @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
|
||||
* @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_PUSH_VLAN: Push a new outermost 802.1Q header onto the
|
||||
* packet.
|
||||
* @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
|
||||
* @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
|
||||
* the nested %OVS_SAMPLE_ATTR_* attributes.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
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_MAX
|
||||
};
|
||||
|
||||
#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)
|
||||
|
||||
#endif /* _LINUX_OPENVSWITCH_H */
|
||||
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