| |
| /* |
| * Copyright (c) 2007-2013 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_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. |
| * |
| * 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_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 pad1; /* Pad for future expension. */ |
| __u64 pad2; /* 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) |
| |
| /* 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. |
| * 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_USERSPACE action specify the Maximum received fragment |
| * size. |
| * |
| * 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_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_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_MAX |
| }; |
| |
| #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_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 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_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 */ |
| |
| #ifdef __KERNEL__ |
| OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */ |
| #endif |
| __OVS_KEY_ATTR_MAX |
| }; |
| |
| #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) |
| |
| enum ovs_tunnel_key_attr { |
| 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_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_*. */ |
| }; |
| |
| 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 16 |
| struct ovs_key_ct_labels { |
| __u8 ct_labels[OVS_CT_LABELS_LEN]; |
| }; |
| |
| /* OVS_KEY_ATTR_CT_STATE flags */ |
| #define OVS_CS_F_NEW 0x01 /* Beginning of a new connection. */ |
| #define OVS_CS_F_ESTABLISHED 0x02 /* Part of an existing connection. */ |
| #define OVS_CS_F_RELATED 0x04 /* Related to an established |
| * connection. */ |
| #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply direction. */ |
| #define OVS_CS_F_INVALID 0x10 /* Could not track connection. */ |
| #define OVS_CS_F_TRACKED 0x20 /* Conntrack has occurred. */ |
| |
| /** |
| * 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_MAX |
| }; |
| |
| #define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) |
| |
| /** |
| * Omit attributes for notifications. |
| * |
| * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath |
| * may omit the corresponding %OVS_FLOW_ATTR_* from the response. |
| */ |
| #define OVS_UFID_F_OMIT_KEY (1 << 0) |
| #define OVS_UFID_F_OMIT_MASK (1 << 1) |
| #define OVS_UFID_F_OMIT_ACTIONS (1 << 2) |
| |
| /** |
| * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action. |
| * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with |
| * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of |
| * %UINT32_MAX samples all packets and intermediate values sample intermediate |
| * fractions of packets. |
| * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event. |
| * Actions are passed as nested attributes. |
| * |
| * Executes the specified actions with the given probability on a per-packet |
| * basis. |
| */ |
| enum ovs_sample_attr { |
| OVS_SAMPLE_ATTR_UNSPEC, |
| OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */ |
| OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */ |
| __OVS_SAMPLE_ATTR_MAX, |
| }; |
| |
| #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. |
| * @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_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_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). */ |
| }; |
| |
| /* Data path hash algorithm for computing Datapath hash. |
| * |
| * The algorithm type only specifies the fields in a flow |
| * will be used as part of the hash. Each datapath is free |
| * to use its own hash algorithm. The hash value will be |
| * opaque to the user space daemon. |
| */ |
| enum ovs_hash_alg { |
| OVS_HASH_ALG_L4, |
| }; |
| |
| /* |
| * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument. |
| * @hash_alg: Algorithm used to compute hash prior to recirculation. |
| * @hash_basis: basis used for computing hash. |
| */ |
| struct ovs_action_hash { |
| uint32_t hash_alg; /* One of ovs_hash_alg. */ |
| uint32_t 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_LABEL: %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. |
| */ |
| 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_MAX |
| }; |
| |
| #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1) |
| |
| /** |
| * 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_SET_MASKED: Replaces the contents of an existing header. A |
| * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value, |
| * and a mask. For every bit set in the mask, the corresponding bit value |
| * is copied from the value to the packet header field, rest of the bits are |
| * left unchanged. The non-masked value bits must be passed in as zeroes. |
| * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute. |
| * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q 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. |
| * @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. |
| * |
| * 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_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) |
| |
| #endif /* _LINUX_OPENVSWITCH_H */ |