/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2007-2011 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
* ----------------------------------------------------------------------
*/
#include <linux/types.h>
-/* datapaths. */
+/**
+ * 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_SET
};
-/**
- * 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;
-};
-\f
/**
* enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
* @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
#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 */
+ __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 tx_dropped; /* no space available in linux */
};
-/* Logical ports. */
+/* Fixed logical ports. */
#define OVSP_LOCAL ((__u16)0)
-\f
+
+/* Packet transfer. */
+
#define OVS_PACKET_FAMILY "ovs_packet"
+#define OVS_PACKET_VERSION 0x1
enum ovs_packet_cmd {
- OVS_PACKET_CMD_UNSPEC,
+ OVS_PACKET_CMD_UNSPEC,
- /* Kernel-to-user notifications. */
- OVS_PACKET_CMD_MISS, /* Flow table miss. */
- OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
+ /* Kernel-to-user notifications. */
+ OVS_PACKET_CMD_MISS, /* Flow table miss. */
+ OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
- /* User commands. */
- OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
+ /* Userspace commands. */
+ OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
};
/**
};
#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)
-\f
-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_PATCH, /* virtual tunnel connecting two vports */
- OVS_VPORT_TYPE_GRE, /* GRE tunnel */
- OVS_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */
- __OVS_VPORT_TYPE_MAX
-};
-#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)
-\f
+/* 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_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_PATCH = 100, /* virtual tunnel connecting two vports */
+ OVS_VPORT_TYPE_GRE, /* GRE tunnel */
+ OVS_VPORT_TYPE_CAPWAP, /* CAPWAP 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_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.
*/
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_ADDRESS = 100, /* hardware address */
__OVS_VPORT_ATTR_MAX
};
};
#define OVS_PATCH_ATTR_MAX (__OVS_PATCH_ATTR_MAX - 1)
-\f
+
/* 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,
};
struct ovs_flow_stats {
- __u64 n_packets; /* Number of matched packets. */
- __u64 n_bytes; /* Number of matched bytes. */
+ __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_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_TUN_ID = 63, /* be64 tunnel ID */
__OVS_KEY_ATTR_MAX
};
__u8 eth_dst[6];
};
-struct ovs_key_8021q {
- __be16 q_tpid;
- __be16 q_tci;
-};
-
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_tos;
+ __u8 ipv6_tclass;
+ __u8 ipv6_hlimit;
__u8 ipv6_frag; /* One of OVS_FRAG_TYPE_*. */
};
* 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.
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
/**
- * enum ovs_action_attr - Action types.
+ * 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_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 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_MAX
};
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