Quelle openvswitch.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright ( c ) 2007 - 2017 Nicira , Inc .
*
* This program is free software ; you can redistribute it and / or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation .
*
* This program is distributed in the hope that it will be useful , but
* WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* General Public License for more details .
*
* You should have received a copy of the GNU General Public License
* along with this program ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA
* 02110 - 1301 , USA
*/
#ifndef _UAPI__LINUX_OPENVSWITCH_H
#define _UAPI__LINUX_OPENVSWITCH_H 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"
/* V2:
* - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
* when creating the datapath .
*/
#define OVS_DATAPATH_VERSION 2
/* First OVS datapath version to support features */
#define OVS_DP_VER_FEATURES 2
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_PER_CPU_PIDS : Per - cpu array of PIDs for upcalls when
* OVS_DP_F_DISPATCH_UPCALL_PER_CPU feature is set .
* @ OVS_DP_ATTR_STATS : Statistics about packets that have passed through the
* datapath . Always present in notifications .
* @ OVS_DP_ATTR_MEGAFLOW_STATS : Statistics about mega flow masks usage for the
* datapath . Always present in notifications .
* @ OVS_DP_ATTR_IFINDEX : Interface index for a new datapath netdev . Only
* valid for % OVS_DP_CMD_NEW requests .
*
* These attributes follow the & struct ovs_header within the Generic Netlink
* payload for % OVS_DP_ * commands .
*/
enum ovs_datapath_attr {
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_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */
OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
OVS_DP_ATTR_PAD,
OVS_DP_ATTR_MASKS_CACHE_SIZE,
OVS_DP_ATTR_PER_CPU_PIDS, /* Netlink PIDS to receive upcalls in
* per - cpu dispatch mode
*/
OVS_DP_ATTR_IFINDEX,
__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_dp_megaflow_stats {
__u64 n_mask_hit; /* Number of masks used for flow lookups. */
__u32 n_masks; /* Number of masks for the datapath. */
__u32 pad0; /* Pad for future expension. */
__u64 n_cache_hit; /* Number of cache matches for flow lookups. */
__u64 pad1; /* Pad for future expension. */
};
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 */
};
/* Allow last Netlink attribute to be unaligned */
#define OVS_DP_F_UNALIGNED (1 << 0 )
/* Allow datapath to associate multiple Netlink PIDs to each vport */
#define OVS_DP_F_VPORT_PIDS (1 << 1 )
/* Allow tc offload recirc sharing */
#define OVS_DP_F_TC_RECIRC_SHARING (1 << 2 )
/* Allow per-cpu dispatch of upcalls */
#define OVS_DP_F_DISPATCH_UPCALL_PER_CPU (1 << 3 )
/* Fixed logical ports. */
#define OVSP_LOCAL ((__u32)0 )
/* Packet transfer. */
#define OVS_PACKET_FAMILY "ovs_packet"
#define OVS_PACKET_VERSION 0 x1
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 .
* Also used in upcall when % OVS_ACTION_ATTR_USERSPACE has optional
* % OVS_USERSPACE_ATTR_ACTIONS attribute .
* @ OVS_PACKET_ATTR_USERDATA : Present for an % OVS_PACKET_CMD_ACTION
* notification if the % OVS_ACTION_ATTR_USERSPACE action specified an
* % OVS_USERSPACE_ATTR_USERDATA attribute , with the same length and content
* specified there .
* @ OVS_PACKET_ATTR_EGRESS_TUN_KEY : Present for an % OVS_PACKET_CMD_ACTION
* notification if the % OVS_ACTION_ATTR_USERSPACE action specified an
* % OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute , which is sent only if the
* output port is actually a tunnel port . Contains the output tunnel key
* extracted from the packet as nested % OVS_TUNNEL_KEY_ATTR_ * attributes .
* @ OVS_PACKET_ATTR_MRU : Present for an % OVS_PACKET_CMD_ACTION and
* @ OVS_PACKET_ATTR_LEN : Packet size before truncation .
* % OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
* size .
* @ OVS_PACKET_ATTR_HASH : Packet hash info ( e . g . hash , sw_hash and l4_hash in skb ) .
* @ OVS_PACKET_ATTR_UPCALL_PID : Netlink PID to use for upcalls while
* processing % OVS_PACKET_CMD_EXECUTE . Takes precedence over all other ways
* to determine the Netlink PID including % OVS_USERSPACE_ATTR_PID ,
* % OVS_DP_ATTR_UPCALL_PID , % OVS_DP_ATTR_PER_CPU_PIDS and the
* % OVS_VPORT_ATTR_UPCALL_PID .
*
* 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_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_*
attributes. */
OVS_PACKET_ATTR_UNUSED1,
OVS_PACKET_ATTR_UNUSED2,
OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe,
error logging should be suppressed. */
OVS_PACKET_ATTR_MRU, /* Maximum received IP fragment size. */
OVS_PACKET_ATTR_LEN, /* Packet size before truncation. */
OVS_PACKET_ATTR_HASH, /* Packet hash. */
OVS_PACKET_ATTR_UPCALL_PID, /* u32 Netlink PID. */
__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 0 x1
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_GRE, /* GRE tunnel. */
OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */
__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 array of Netlink socket pids in userspace
* among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
* received on this port . If this is a single - element array of value 0 ,
* upcalls should not be sent .
* @ OVS_VPORT_ATTR_STATS : A & struct ovs_vport_stats giving statistics for
* packets sent or received through the vport .
*
* These attributes follow the & struct ovs_header within the Generic Netlink
* payload for % OVS_VPORT_ * commands .
*
* For % OVS_VPORT_CMD_NEW requests , the % OVS_VPORT_ATTR_TYPE and
* % OVS_VPORT_ATTR_NAME attributes are required . % OVS_VPORT_ATTR_PORT_NO is
* optional ; if not specified a free port number is automatically selected .
* Whether % OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
* of vport .
*
* For other requests , if % OVS_VPORT_ATTR_NAME is specified then it is used to
* look up the vport to operate on ; otherwise dp_idx from the & struct
* ovs_header plus % OVS_VPORT_ATTR_PORT_NO determine the vport .
*/
enum ovs_vport_attr {
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, /* array of u32 Netlink socket PIDs for */
/* receiving upcalls */
OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
OVS_VPORT_ATTR_PAD,
OVS_VPORT_ATTR_IFINDEX,
OVS_VPORT_ATTR_NETNSID,
OVS_VPORT_ATTR_UPCALL_STATS,
__OVS_VPORT_ATTR_MAX
};
#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1 )
/**
* enum ovs_vport_upcall_attr - attributes for % OVS_VPORT_UPCALL * commands
* @ OVS_VPORT_UPCALL_SUCCESS : 64 - bit upcall success packets .
* @ OVS_VPORT_UPCALL_FAIL : 64 - bit upcall fail packets .
*/
enum ovs_vport_upcall_attr {
OVS_VPORT_UPCALL_ATTR_SUCCESS,
OVS_VPORT_UPCALL_ATTR_FAIL,
__OVS_VPORT_UPCALL_ATTR_MAX
};
#define OVS_VPORT_UPCALL_ATTR_MAX (__OVS_VPORT_UPCALL_ATTR_MAX - 1 )
enum {
OVS_VXLAN_EXT_UNSPEC,
OVS_VXLAN_EXT_GBP, /* Flag or __u32 */
__OVS_VXLAN_EXT_MAX,
};
#define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1 )
/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
*/
enum {
OVS_TUNNEL_ATTR_UNSPEC,
OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
OVS_TUNNEL_ATTR_EXTENSION,
__OVS_TUNNEL_ATTR_MAX
};
#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1 )
/* Flows. */
#define OVS_FLOW_FAMILY "ovs_flow"
#define OVS_FLOW_MCGROUP "ovs_flow"
#define OVS_FLOW_VERSION 0 x1
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_TUNNEL, /* Nested set of ovs_tunnel attributes */
OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */
OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash
is not computed by the datapath. */
OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls.
* The implementation may restrict
* the accepted length of the array. */
OVS_KEY_ATTR_CT_STATE, /* u32 bitmask of OVS_CS_F_* */
OVS_KEY_ATTR_CT_ZONE, /* u16 connection tracking zone. */
OVS_KEY_ATTR_CT_MARK, /* u32 connection tracking mark */
OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */
OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4, /* struct ovs_key_ct_tuple_ipv4 */
OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6, /* struct ovs_key_ct_tuple_ipv6 */
OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */
/* User space decided to squat on types 29 and 30. They are defined
* below , but should not be sent to the kernel .
*
* WARNING : No new types should be added unless they are defined
* for both kernel and user space ( no ' ifdef ' s ) . It ' s hard
* to keep compatibility otherwise .
*/
OVS_KEY_ATTR_PACKET_TYPE, /* be32 packet type */
OVS_KEY_ATTR_ND_EXTENSIONS, /* IPv6 Neighbor Discovery extensions */
OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info.
* For in - kernel use only .
*/
OVS_KEY_ATTR_IPV6_EXTHDRS, /* struct ovs_key_ipv6_exthdr */
__OVS_KEY_ATTR_MAX
};
#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1 )
enum ovs_tunnel_key_attr {
/* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
OVS_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
OVS_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
OVS_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
OVS_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested OVS_VXLAN_EXT_* */
OVS_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */
OVS_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */
OVS_TUNNEL_KEY_ATTR_PAD,
OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */
OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/
__OVS_TUNNEL_KEY_ATTR_MAX
};
#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_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_mpls {
__be32 mpls_lse;
};
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_*. */
};
/* separate structure to support backward compatibility with older user space */
struct ovs_key_ipv6_exthdrs {
__u16 hdrs;
};
struct ovs_key_tcp {
__be16 tcp_src;
__be16 tcp_dst;
};
struct ovs_key_udp {
__be16 udp_src;
__be16 udp_dst;
};
struct ovs_key_sctp {
__be16 sctp_src;
__be16 sctp_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 {
__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 0 x01 /* Beginning of a new connection. */
#define OVS_CS_F_ESTABLISHED 0 x02 /* Part of an existing connection. */
#define OVS_CS_F_RELATED 0 x04 /* Related to an established
* connection. */
#define OVS_CS_F_REPLY_DIR 0 x08 /* Flow is in the reply direction. */
#define OVS_CS_F_INVALID 0 x10 /* Could not track connection. */
#define OVS_CS_F_TRACKED 0 x20 /* Conntrack has occurred. */
#define OVS_CS_F_SRC_NAT 0 x40 /* Packet's source address/port was
* mangled by NAT .
*/
#define OVS_CS_F_DST_NAT 0 x80 /* 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 . Nested actions will be able to access the probability value of the
* parent @ OVS_ACTION_ATTR_SAMPLE .
*/
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 . 1 Q 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 . 1 Q or 802 . 1 AD 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,
OVS_HASH_ALG_SYM_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
#define OVS_PSAMPLE_COOKIE_MAX_SIZE 16
/**
* enum ovs_psample_attr - Attributes for % OVS_ACTION_ATTR_PSAMPLE
* action .
*
* @ OVS_PSAMPLE_ATTR_GROUP : 32 - bit number to identify the source of the
* sample .
* @ OVS_PSAMPLE_ATTR_COOKIE : An optional variable - length binary cookie that
* contains user - defined metadata . The maximum length is
* OVS_PSAMPLE_COOKIE_MAX_SIZE bytes .
*
* Sends the packet to the psample multicast group with the specified group and
* cookie . It is possible to combine this action with the
* % OVS_ACTION_ATTR_TRUNC action to limit the size of the sample .
*/
enum ovs_psample_attr {
OVS_PSAMPLE_ATTR_GROUP = 1 , /* u32 number. */
OVS_PSAMPLE_ATTR_COOKIE, /* Optional, user specified cookie. */
/* private: */
__OVS_PSAMPLE_ATTR_MAX
};
#define OVS_PSAMPLE_ATTR_MAX (__OVS_PSAMPLE_ATTR_MAX - 1 )
/**
* enum ovs_action_attr - Action types .
*
* @ OVS_ACTION_ATTR_OUTPUT : Output packet to port .
* @ OVS_ACTION_ATTR_TRUNC : Output packet to port with truncated packet size .
* @ OVS_ACTION_ATTR_USERSPACE : Send packet to userspace according to nested
* % OVS_USERSPACE_ATTR_ * attributes .
* @ OVS_ACTION_ATTR_SET : Replaces the contents of an existing header . The
* single nested % OVS_KEY_ATTR_ * attribute specifies a header to modify and its
* value .
* @ OVS_ACTION_ATTR_SET_MASKED : Replaces the contents of an existing header . A
* nested % OVS_KEY_ATTR_ * attribute specifies a header to modify , its value ,
* and a mask . For every bit set in the mask , the corresponding bit value
* is copied from the value to the packet header field , rest of the bits are
* left unchanged . The non - masked value bits must be passed in as zeroes .
* Masking is not supported for the % OVS_KEY_ATTR_TUNNEL attribute .
* @ OVS_ACTION_ATTR_PUSH_VLAN : Push a new outermost 802 . 1 Q or 802 . 1 ad header
* onto the packet .
* @ OVS_ACTION_ATTR_POP_VLAN : Pop the outermost 802 . 1 Q or 802 . 1 ad header
* from the packet .
* @ OVS_ACTION_ATTR_SAMPLE : Probabilitically executes actions , as specified in
* the nested % OVS_SAMPLE_ATTR_ * attributes .
* @ OVS_ACTION_ATTR_PUSH_MPLS : Push a new MPLS label stack entry onto the
* top of the packets MPLS label stack . Set the ethertype of the
* encapsulating frame to either % ETH_P_MPLS_UC or % ETH_P_MPLS_MC to
* indicate the new packet contents .
* @ OVS_ACTION_ATTR_POP_MPLS : Pop an MPLS label stack entry off of the
* packet ' s MPLS label stack . Set the encapsulating frame ' s ethertype to
* indicate the new packet contents . This could potentially still be
* % ETH_P_MPLS if the resulting MPLS label stack is not empty . If there
* is no MPLS label stack , as determined by ethertype , no action is taken .
* @ OVS_ACTION_ATTR_CT : Track the connection . Populate the conntrack - related
* entries in the flow key .
* @ OVS_ACTION_ATTR_PUSH_ETH : Push a new outermost Ethernet header onto the
* packet .
* @ OVS_ACTION_ATTR_POP_ETH : Pop the outermost Ethernet header off the
* packet .
* @ OVS_ACTION_ATTR_CT_CLEAR : Clear conntrack state from the packet .
* @ OVS_ACTION_ATTR_PUSH_NSH : push NSH header to the packet .
* @ OVS_ACTION_ATTR_POP_NSH : pop the outermost NSH header off the packet .
* @ OVS_ACTION_ATTR_METER : Run packet through a meter , which may drop the
* packet , or modify the packet ( e . g . , change the DSCP field ) .
* @ OVS_ACTION_ATTR_CLONE : make a copy of the packet and execute a list of
* actions without affecting the original packet and key .
* @ OVS_ACTION_ATTR_CHECK_PKT_LEN : Check the packet length and execute a set
* of actions if greater than the specified packet length , else execute
* another set of actions .
* @ OVS_ACTION_ATTR_ADD_MPLS : Push a new MPLS label stack entry at the
* start of the packet or at the start of the l3 header depending on the value
* of l3 tunnel flag in the tun_flags field of OVS_ACTION_ATTR_ADD_MPLS
* argument .
* @ OVS_ACTION_ATTR_DROP : Explicit drop action .
* @ OVS_ACTION_ATTR_PSAMPLE : Send a sample of the packet to external observers
* via psample .
*
* Only a single header can be set with a single % OVS_ACTION_ATTR_SET . Not all
* fields within a header are modifiable , e . g . the IPv4 protocol and fragment
* type may not be changed .
*
* @ OVS_ACTION_ATTR_SET_TO_MASKED : Kernel internal masked set action translated
* from the @ OVS_ACTION_ATTR_SET .
*/
enum ovs_action_attr {
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_DROP, /* u32 error code. */
OVS_ACTION_ATTR_PSAMPLE, /* Nested OVS_PSAMPLE_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 0 x1
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 0 x1
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 */
Messung V0.5 in Prozent C=80 H=100 G=90
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2026-10-10
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