/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2007-2013 Nicira, Inc.
*
* This file is offered under your choice of two licenses: Apache 2.0 or GNU
* GPL 2.0 or later. The permission statements for each of these licenses is
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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.
+ * 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.
+ * 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
* ----------------------------------------------------------------------
*/
#define _LINUX_OPENVSWITCH_H 1
#include <linux/types.h>
+#include <linux/if_ether.h>
/**
* struct ovs_header - header for OVS Generic Netlink messages.
};
/* Fixed logical ports. */
-#define OVSP_LOCAL ((__u16)0)
+#define OVSP_LOCAL ((__u32)0)
/* Packet transfer. */
* 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.
+ * %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.
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, /* u64 OVS_ACTION_ATTR_USERSPACE arg. */
+ OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
__OVS_PACKET_ATTR_MAX
};
OVS_VPORT_TYPE_UNSPEC,
OVS_VPORT_TYPE_NETDEV, /* network device */
OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
- OVS_VPORT_TYPE_PATCH, /* virtual tunnel connecting two vports */
- OVS_VPORT_TYPE_GRE, /* GRE tunnel */
- OVS_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */
+ OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
+ OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel */
+ OVS_VPORT_TYPE_GRE64 = 104, /* GRE tunnel with 64-bit keys */
+ OVS_VPORT_TYPE_LISP = 105, /* LISP tunnel */
__OVS_VPORT_TYPE_MAX
};
* @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.
- * @OVS_VPORT_ATTR_ADDRESS: A 6-byte Ethernet address for the vport.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_VPORT_* commands.
* %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. %OVS_VPORT_ATTR_STATS and %OVS_VPORT_ATTR_ADDRESS are optional,
- * and other attributes are ignored.
+ * of vport. %OVS_VPORT_ATTR_STATS is optional 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
*/
enum ovs_vport_attr {
OVS_VPORT_ATTR_UNSPEC,
- OVS_VPORT_ATTR_PORT_NO, /* port number within datapath */
- OVS_VPORT_ATTR_TYPE, /* 32-bit OVS_VPORT_TYPE_* constant. */
+ 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_UPCALL_PID, /* Netlink PID to receive upcalls */
- OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
- OVS_VPORT_ATTR_ADDRESS, /* hardware address */
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)
-/* OVS_VPORT_ATTR_OPTIONS attributes for patch vports. */
+/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
+ */
enum {
- OVS_PATCH_ATTR_UNSPEC,
- OVS_PATCH_ATTR_PEER, /* name of peer vport, as a string */
- __OVS_PATCH_ATTR_MAX
+ OVS_TUNNEL_ATTR_UNSPEC,
+ OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
+ __OVS_TUNNEL_ATTR_MAX
};
-#define OVS_PATCH_ATTR_MAX (__OVS_PATCH_ATTR_MAX - 1)
+#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
/* Flows. */
enum ovs_key_attr {
OVS_KEY_ATTR_UNSPEC,
- OVS_KEY_ATTR_TUN_ID, /* 64-bit tunnel ID */
- OVS_KEY_ATTR_IN_PORT, /* 32-bit OVS dp port number */
+ 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_8021Q, /* struct ovs_key_8021q */
- OVS_KEY_ATTR_ETHERTYPE, /* 16-bit Ethernet type */
+ 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_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 */
+
+#ifdef __KERNEL__
+ OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
+#endif
+
+ OVS_KEY_ATTR_MPLS = 62, /* array of struct ovs_key_mpls.
+ * The implementation may restrict
+ * the accepted length of the array. */
__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_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.
#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
struct ovs_key_ethernet {
- __u8 eth_src[6];
- __u8 eth_dst[6];
+ __u8 eth_src[ETH_ALEN];
+ __u8 eth_dst[ETH_ALEN];
};
-struct ovs_key_8021q {
- __be16 q_tpid;
- __be16 q_tci;
+struct ovs_key_mpls {
+ __be32 mpls_lse;
};
struct ovs_key_ipv4 {
__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_tos;
+ __u8 ipv6_tclass;
+ __u8 ipv6_hlimit;
__u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
};
__be32 arp_sip;
__be32 arp_tip;
__be16 arp_op;
- __u8 arp_sha[6];
- __u8 arp_tha[6];
+ __u8 arp_sha[ETH_ALEN];
+ __u8 arp_tha[ETH_ALEN];
};
struct ovs_key_nd {
__u32 nd_target[4];
- __u8 nd_sll[6];
- __u8 nd_tll[6];
+ __u8 nd_sll[ETH_ALEN];
+ __u8 nd_tll[ETH_ALEN];
};
/**
* 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
+ * 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_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.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_FLOW_* commands.
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_MAX
};
* 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 u64 argument is copied to the
- * %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA,
+ * @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, /* u64 optional user-specified cookie. */
+ OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
__OVS_USERSPACE_ATTR_MAX
};
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
/**
- * enum ovs_action_attr - Action types.
+ * 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). */
+};
+
+/**
+ * enum ovs_action_attr - Action types.
*
- * @OVS_ACTION_ATTR_OUTPUT: Output packet to port passed as NLA data.
- * @OVS_ACTION_ATTR_USERSPACE: Nested %OVS_USERSPACE_ATTR_ attributes specifying
- * PID.
- * @OVS_ACTION_ATTR_PUSH: Nested %OVS_KEY_ATTR_* attribute specifying header to
- * push to given packet.
- * E.g. Push vlan tag action would be NLA of %OVS_ACTION_ATTR_PUSH type with
- * nested attribute of type %OVS_KEY_ATTR_8021Q with struct ovs_key_8021q
- * as NLA data.
- * @OVS_ACTION_ATTR_POP: Pop header according to %OVS_KEY_ATTR_ sent as
- * attribute data.
- * @OVS_ACTION_ATTR_SET: Nested %OVS_KEY_ATTR_* attribute specifying the
- * field to set to given packet.
- * @OVS_ACTION_ATTR_SET_PRIORITY: A set skb->priority to 32-bit number passed
- * as NLA data.
- * @OVS_ACTION_ATTR_POP_PRIORITY: Restore skb->priority to original value.
- * @OVS_ACTION_ATTR_SAMPLE: Execute set of actions according to probability
- * %OVS_SAMPLE_ATTR_PROBABILITY.
+ * @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_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_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_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.
*
- * Only a single field can be set with a single %OVS_ACTION_ATTR_{SET,PUSH}.
+ * 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, /* Output to switch port. */
+ OVS_ACTION_ATTR_OUTPUT, /* u32 port number. */
OVS_ACTION_ATTR_USERSPACE, /* Nested OVS_USERSPACE_ATTR_*. */
- OVS_ACTION_ATTR_PUSH, /* Push packet header. */
- OVS_ACTION_ATTR_POP, /* Pop packet header. */
- OVS_ACTION_ATTR_SET, /* Set packet field(s). */
- OVS_ACTION_ATTR_SET_PRIORITY, /* Set skb->priority. */
- OVS_ACTION_ATTR_POP_PRIORITY, /* Restore original skb->priority. */
+ 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_PUSH_MPLS, /* struct ovs_action_push_mpls. */
+ OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */
__OVS_ACTION_ATTR_MAX
};
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