/*
- * Copyright (c) 2009, 2010 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011 Nicira Networks.
*
* 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
* ----------------------------------------------------------------------
*/
-/* Protocol between userspace and kernel datapath. */
+/* Protocol between userspace and kernel datapath.
+ *
+ * Be sure to update datapath/odp-compat.h if you change any of the structures
+ * in here. */
#ifndef OPENVSWITCH_DATAPATH_PROTOCOL_H
#define OPENVSWITCH_DATAPATH_PROTOCOL_H 1
+/* The ovs_be<N> types indicate that an object is in big-endian, not
+ * native-endian, byte order. They are otherwise equivalent to uint<N>_t.
+ * The Linux kernel already has __be<N> types for this, which take on
+ * additional semantics when the "sparse" static checker is used, so we use
+ * those types when compiling the kernel. */
#ifdef __KERNEL__
#include <linux/types.h>
+#include <linux/socket.h>
+#define ovs_be16 __be16
+#define ovs_be32 __be32
+#define ovs_be64 __be64
#else
-#include <sys/types.h>
+#include "openvswitch/types.h"
+#include <sys/socket.h>
#endif
-#include <linux/if_ether.h>
-
-#define ODP_MAX 256 /* Maximum number of datapaths. */
-
-#define ODP_DP_CREATE _IO('O', 0)
-#define ODP_DP_DESTROY _IO('O', 1)
-#define ODP_DP_STATS _IOW('O', 2, struct odp_stats)
-#define ODP_GET_DROP_FRAGS _IOW('O', 3, int)
-#define ODP_SET_DROP_FRAGS _IOR('O', 4, int)
+#ifndef __aligned_u64
+#define __aligned_u64 __u64 __attribute__((aligned(8)))
+#define __aligned_be64 __be64 __attribute__((aligned(8)))
+#define __aligned_le64 __le64 __attribute__((aligned(8)))
+#endif
-#define ODP_GET_LISTEN_MASK _IOW('O', 5, int)
-#define ODP_SET_LISTEN_MASK _IOR('O', 6, int)
+#include <linux/if_link.h>
+#include <linux/netlink.h>
+\f
+/* datapaths. */
-#define ODP_PORT_ADD _IOR('O', 7, struct odp_port)
-#define ODP_PORT_DEL _IOR('O', 8, int)
-#define ODP_PORT_QUERY _IOWR('O', 9, struct odp_port)
-#define ODP_PORT_LIST _IOWR('O', 10, struct odp_portvec)
+#define ODP_DATAPATH_FAMILY "odp_datapath"
+#define ODP_DATAPATH_MCGROUP "odp_datapath"
-#define ODP_PORT_GROUP_SET _IOR('O', 11, struct odp_port_group)
-#define ODP_PORT_GROUP_GET _IOWR('O', 12, struct odp_port_group)
+enum odp_datapath_cmd {
+ ODP_DP_CMD_UNSPEC,
+ ODP_DP_CMD_NEW,
+ ODP_DP_CMD_DEL,
+ ODP_DP_CMD_GET,
+ ODP_DP_CMD_SET
+};
-#define ODP_FLOW_GET _IOWR('O', 13, struct odp_flow)
-#define ODP_FLOW_PUT _IOWR('O', 14, struct odp_flow)
-#define ODP_FLOW_LIST _IOWR('O', 15, struct odp_flowvec)
-#define ODP_FLOW_FLUSH _IO('O', 16)
-#define ODP_FLOW_DEL _IOWR('O', 17, struct odp_flow)
+/**
+ * struct odp_header - header for ODP 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 ODP Generic
+ * Netlink family, but all of the ODP families use this header.
+ */
+struct odp_header {
+ int dp_ifindex;
+};
+\f
+/**
+ * enum odp_datapath_attr - attributes for %ODP_DP_* commands.
+ * @ODP_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 odp_header. Always present in notifications. Required in
+ * %ODP_DP_NEW requests. May be used as an alternative to specifying
+ * dp_ifindex in other requests (with a dp_ifindex of 0).
+ * @ODP_DP_ATTR_STATS: Statistics about packets that have passed through the
+ * datapath. Always present in notifications.
+ * @ODP_DP_ATTR_IPV4_FRAGS: One of %ODP_DP_FRAG_*. Always present in
+ * notifications. May be included in %ODP_DP_NEW or %ODP_DP_SET requests to
+ * change the fragment handling policy.
+ * @ODP_DP_ATTR_SAMPLING: 32-bit fraction of packets to sample with
+ * @ODP_PACKET_CMD_SAMPLE. A value of 0 samples no packets, a value of
+ * %UINT32_MAX samples all packets, and intermediate values sample intermediate
+ * fractions of packets.
+ * @ODP_DP_ATTR_MCGROUPS: Nested attributes with multicast groups. Each nested
+ * attribute has a %ODP_PACKET_CMD_* type with a 32-bit value giving the
+ * Generic Netlink multicast group number used for sending this datapath's
+ * messages with that command type up to userspace.
+ *
+ * These attributes follow the &struct odp_header within the Generic Netlink
+ * payload for %ODP_DP_* commands.
+ */
+enum odp_datapath_attr {
+ ODP_DP_ATTR_UNSPEC,
+ ODP_DP_ATTR_NAME, /* name of dp_ifindex netdev */
+ ODP_DP_ATTR_STATS, /* struct odp_stats */
+ ODP_DP_ATTR_IPV4_FRAGS, /* 32-bit enum odp_frag_handling */
+ ODP_DP_ATTR_SAMPLING, /* 32-bit fraction of packets to sample. */
+ ODP_DP_ATTR_MCGROUPS, /* Nested attributes with multicast groups. */
+ __ODP_DP_ATTR_MAX
+};
-#define ODP_EXECUTE _IOR('O', 18, struct odp_execute)
+#define ODP_DP_ATTR_MAX (__ODP_DP_ATTR_MAX - 1)
-#define ODP_SET_SFLOW_PROBABILITY _IOR('O', 19, int)
-#define ODP_GET_SFLOW_PROBABILITY _IOW('O', 20, int)
+/**
+ * enum odp_frag_handling - policy for handling received IPv4 fragments.
+ * @ODP_DP_FRAG_ZERO: Treat IP fragments as IP protocol 0 and transport ports
+ * zero.
+ * @ODP_DP_FRAG_DROP: Drop IP fragments. Do not pass them through the flow
+ * table or up to userspace.
+ */
+enum odp_frag_handling {
+ ODP_DP_FRAG_UNSPEC,
+ ODP_DP_FRAG_ZERO, /* Treat IP fragments as transport port 0. */
+ ODP_DP_FRAG_DROP /* Drop IP fragments. */
+};
struct odp_stats {
- /* Flows. */
- __u32 n_flows; /* Number of flows in flow table. */
- __u32 cur_capacity; /* Current flow table capacity. */
- __u32 max_capacity; /* Maximum expansion of flow table capacity. */
-
- /* Ports. */
- __u32 n_ports; /* Current number of ports. */
- __u32 max_ports; /* Maximum supported number of ports. */
- __u16 max_groups; /* Maximum number of port groups. */
- __u16 reserved;
-
- /* Lookups. */
- __u64 n_frags; /* Number of dropped IP fragments. */
- __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. */
-
- /* Queues. */
- __u16 max_miss_queue; /* Max length of ODPL_MISS queue. */
- __u16 max_action_queue; /* Max length of ODPL_ACTION queue. */
- __u16 max_sflow_queue; /* Max length of ODPL_SFLOW queue. */
+ uint64_t n_frags; /* Number of dropped IP fragments. */
+ uint64_t n_hit; /* Number of flow table matches. */
+ uint64_t n_missed; /* Number of flow table misses. */
+ uint64_t n_lost; /* Number of misses not sent to userspace. */
};
/* Logical ports. */
-#define ODPP_LOCAL ((__u16)0)
-#define ODPP_NONE ((__u16)-1)
-
-/* Listening channels. */
-#define _ODPL_MISS_NR 0 /* Packet missed in flow table. */
-#define ODPL_MISS (1 << _ODPL_MISS_NR)
-#define _ODPL_ACTION_NR 1 /* Packet output to ODPP_CONTROLLER. */
-#define ODPL_ACTION (1 << _ODPL_ACTION_NR)
-#define _ODPL_SFLOW_NR 2 /* sFlow samples. */
-#define ODPL_SFLOW (1 << _ODPL_SFLOW_NR)
-#define ODPL_ALL (ODPL_MISS | ODPL_ACTION | ODPL_SFLOW)
+#define ODPP_LOCAL ((uint16_t)0)
+\f
+#define ODP_PACKET_FAMILY "odp_packet"
-/**
- * struct odp_msg - format of messages read from datapath fd.
- * @type: One of the %_ODPL_* constants.
- * @length: Total length of message, including this header.
- * @port: Port that received the packet embedded in this message.
- * @reserved: Not currently used. Should be set to 0.
- * @arg: Argument value whose meaning depends on @type.
- *
- * For @type == %_ODPL_MISS_NR, the header is followed by packet data. The
- * @arg member is unused and set to 0.
- *
- * For @type == %_ODPL_ACTION_NR, the header is followed by packet data. The
- * @arg member is copied from the &struct odp_action_controller that caused
- * the &struct odp_msg to be composed.
- *
- * For @type == %_ODPL_SFLOW_NR, the header is followed by &struct
- * odp_sflow_sample_header, then by an array of &union odp_action (the number
- * of which is specified in &struct odp_sflow_sample_header), then by packet
- * data.
- */
-struct odp_msg {
- __u32 type;
- __u32 length;
- __u16 port;
- __u16 reserved;
- __u32 arg;
+enum odp_packet_cmd {
+ ODP_PACKET_CMD_UNSPEC,
+
+ /* Kernel-to-user notifications. */
+ ODP_PACKET_CMD_MISS, /* Flow table miss. */
+ ODP_PACKET_CMD_ACTION, /* ODP_ACTION_ATTR_CONTROLLER action. */
+ ODP_PACKET_CMD_SAMPLE, /* Sampled packet. */
+
+ /* User commands. */
+ ODP_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
};
/**
- * struct odp_sflow_sample_header - header added to sFlow sampled packet.
- * @sample_pool: Number of packets that were candidates for sFlow sampling,
- * regardless of whether they were actually chosen and sent down to userspace.
- * @n_actions: Number of "union odp_action"s immediately following this header.
+ * enum odp_packet_attr - attributes for %ODP_PACKET_* commands.
+ * @ODP_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire
+ * packet as received, from the start of the Ethernet header onward. For
+ * %ODP_PACKET_CMD_ACTION, %ODP_PACKET_ATTR_PACKET reflects changes made by
+ * actions preceding %ODP_ACTION_ATTR_CONTROLLER, but %ODP_PACKET_ATTR_KEY is
+ * the flow key extracted from the packet as originally received.
+ * @ODP_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key
+ * extracted from the packet as nested %ODP_KEY_ATTR_* attributes. This allows
+ * userspace to adapt its flow setup strategy by comparing its notion of the
+ * flow key against the kernel's.
+ * @ODP_PACKET_ATTR_USERDATA: Present for an %ODP_PACKET_CMD_ACTION
+ * notification if the %ODP_ACTION_ATTR_CONTROLLER, action's argument was
+ * nonzero.
+ * @ODP_PACKET_ATTR_SAMPLE_POOL: Present for %ODP_PACKET_CMD_SAMPLE. Contains
+ * the number of packets processed so far that were candidates for sampling.
+ * @ODP_PACKET_ATTR_ACTIONS: Present for %ODP_PACKET_CMD_SAMPLE. Contains a
+ * copy of the actions applied to the packet, as nested %ODP_ACTION_ATTR_*
+ * attributes.
*
- * This header follows &struct odp_msg when that structure's @type is
- * %_ODPL_SFLOW_NR, and it is itself followed by an array of &union odp_action
- * (the number of which is specified in @n_actions) and then by packet data.
+ * These attributes follow the &struct odp_header within the Generic Netlink
+ * payload for %ODP_PACKET_* commands.
*/
-struct odp_sflow_sample_header {
- __u32 sample_pool;
- __u32 n_actions;
+enum odp_packet_attr {
+ ODP_PACKET_ATTR_UNSPEC,
+ ODP_PACKET_ATTR_PACKET, /* Packet data. */
+ ODP_PACKET_ATTR_KEY, /* Nested ODP_KEY_ATTR_* attributes. */
+ ODP_PACKET_ATTR_USERDATA, /* u64 ODP_ACTION_ATTR_CONTROLLER arg. */
+ ODP_PACKET_ATTR_SAMPLE_POOL, /* # sampling candidate packets so far. */
+ ODP_PACKET_ATTR_ACTIONS, /* Nested ODP_ACTION_ATTR_* attributes. */
+ __ODP_PACKET_ATTR_MAX
};
-#define ODP_PORT_INTERNAL (1 << 0) /* This port is simulated. */
-struct odp_port {
- char devname[16]; /* IFNAMSIZ */
- __u16 port;
- __u16 flags;
- __u32 reserved2;
+#define ODP_PACKET_ATTR_MAX (__ODP_PACKET_ATTR_MAX - 1)
+\f
+enum odp_vport_type {
+ ODP_VPORT_TYPE_UNSPEC,
+ ODP_VPORT_TYPE_NETDEV, /* network device */
+ ODP_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
+ ODP_VPORT_TYPE_PATCH, /* virtual tunnel connecting two vports */
+ ODP_VPORT_TYPE_GRE, /* GRE tunnel */
+ ODP_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */
+ __ODP_VPORT_TYPE_MAX
};
-struct odp_portvec {
- struct odp_port *ports;
- int n_ports;
+#define ODP_VPORT_TYPE_MAX (__ODP_VPORT_TYPE_MAX - 1)
+\f
+#define ODP_VPORT_FAMILY "odp_vport"
+#define ODP_VPORT_MCGROUP "odp_vport"
+
+enum odp_vport_cmd {
+ ODP_VPORT_CMD_UNSPEC,
+ ODP_VPORT_CMD_NEW,
+ ODP_VPORT_CMD_DEL,
+ ODP_VPORT_CMD_GET,
+ ODP_VPORT_CMD_SET
};
-struct odp_port_group {
- __u16 *ports;
- __u16 n_ports; /* Number of ports. */
- __u16 group; /* Group number. */
+/**
+ * enum odp_vport_attr - attributes for %ODP_VPORT_* commands.
+ * @ODP_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
+ * @ODP_VPORT_ATTR_TYPE: 32-bit %ODP_VPORT_TYPE_* constant describing the type
+ * of vport.
+ * @ODP_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.
+ * @ODP_VPORT_ATTR_STATS: A &struct rtnl_link_stats64 giving statistics for
+ * packets sent or received through the vport.
+ * @ODP_VPORT_ATTR_ADDRESS: A 6-byte Ethernet address for the vport.
+ * @ODP_VPORT_ATTR_MTU: MTU for the vport.
+ * @ODP_VPORT_ATTR_IFINDEX: ifindex of the underlying network device, if any.
+ * @ODP_VPORT_ATTR_IFLINK: ifindex of the device on which packets are sent (for
+ * tunnels), if any.
+ *
+ * These attributes follow the &struct odp_header within the Generic Netlink
+ * payload for %ODP_VPORT_* commands.
+ *
+ * All attributes applicable to a given port are present in notifications.
+ * This means that, for example, a vport that has no corresponding network
+ * device would omit %ODP_VPORT_ATTR_IFINDEX.
+ *
+ * For %ODP_VPORT_CMD_NEW requests, the %ODP_VPORT_ATTR_TYPE and
+ * %ODP_VPORT_ATTR_NAME attributes are required. %ODP_VPORT_ATTR_PORT_NO is
+ * optional; if not specified a free port number is automatically selected.
+ * Whether %ODP_VPORT_ATTR_OPTIONS is required or optional depends on the type
+ * of vport. %ODP_VPORT_ATTR_STATS, %ODP_VPORT_ATTR_ADDRESS, and
+ * %ODP_VPORT_ATTR_MTU are optional, and other attributes are ignored.
+ *
+ * For other requests, if %ODP_VPORT_ATTR_NAME is specified then it is used to
+ * look up the vport to operate on; otherwise dp_idx from the &struct
+ * odp_header plus %ODP_VPORT_ATTR_PORT_NO determine the vport.
+ */
+enum odp_vport_attr {
+ ODP_VPORT_ATTR_UNSPEC,
+ ODP_VPORT_ATTR_PORT_NO, /* port number within datapath */
+ ODP_VPORT_ATTR_TYPE, /* 32-bit ODP_VPORT_TYPE_* constant. */
+ ODP_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
+ ODP_VPORT_ATTR_STATS, /* struct rtnl_link_stats64 */
+ ODP_VPORT_ATTR_ADDRESS, /* hardware address */
+ ODP_VPORT_ATTR_MTU, /* 32-bit maximum transmission unit */
+ ODP_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
+ ODP_VPORT_ATTR_IFINDEX, /* 32-bit ifindex of backing netdev */
+ ODP_VPORT_ATTR_IFLINK, /* 32-bit ifindex on which packets are sent */
+ __ODP_VPORT_ATTR_MAX
};
-struct odp_flow_stats {
- __u64 n_packets; /* Number of matched packets. */
- __u64 n_bytes; /* Number of matched bytes. */
- __u64 used_sec; /* Time last used. */
- __u32 used_nsec;
- __u8 tcp_flags;
- __u8 ip_tos;
- __u16 error; /* Used by ODP_FLOW_GET. */
-};
+#define ODP_VPORT_ATTR_MAX (__ODP_VPORT_ATTR_MAX - 1)
-struct odp_flow_key {
- __be32 nw_src; /* IP source address. */
- __be32 nw_dst; /* IP destination address. */
- __u16 in_port; /* Input switch port. */
- __be16 dl_vlan; /* Input VLAN. */
- __be16 dl_type; /* Ethernet frame type. */
- __be16 tp_src; /* TCP/UDP source port. */
- __be16 tp_dst; /* TCP/UDP destination port. */
- __u8 dl_src[ETH_ALEN]; /* Ethernet source address. */
- __u8 dl_dst[ETH_ALEN]; /* Ethernet destination address. */
- __u8 nw_proto; /* IP protocol or lower 8 bits of
- ARP opcode. */
- __u8 reserved; /* Pad to 64 bits. */
+/* ODP_VPORT_ATTR_OPTIONS attributes for patch vports. */
+enum {
+ ODP_PATCH_ATTR_UNSPEC,
+ ODP_PATCH_ATTR_PEER, /* name of peer vport, as a string */
+ __ODP_PATCH_ATTR_MAX
};
-/* Flags for ODP_FLOW. */
-#define ODPFF_ZERO_TCP_FLAGS (1 << 0) /* Zero the TCP flags. */
+#define ODP_PATCH_ATTR_MAX (__ODP_PATCH_ATTR_MAX - 1)
+\f
+/* Flows. */
-struct odp_flow {
- struct odp_flow_stats stats;
- struct odp_flow_key key;
- union odp_action *actions;
- __u32 n_actions;
- __u32 flags;
-};
+#define ODP_FLOW_FAMILY "odp_flow"
+#define ODP_FLOW_MCGROUP "odp_flow"
-/* Flags for ODP_FLOW_PUT. */
-#define ODPPF_CREATE (1 << 0) /* Allow creating a new flow. */
-#define ODPPF_MODIFY (1 << 1) /* Allow modifying an existing flow. */
-#define ODPPF_ZERO_STATS (1 << 2) /* Zero the stats of an existing flow. */
+enum odp_flow_cmd {
+ ODP_FLOW_CMD_UNSPEC,
+ ODP_FLOW_CMD_NEW,
+ ODP_FLOW_CMD_DEL,
+ ODP_FLOW_CMD_GET,
+ ODP_FLOW_CMD_SET
+};
-/* ODP_FLOW_PUT argument. */
-struct odp_flow_put {
- struct odp_flow flow;
- __u32 flags;
+struct odp_flow_stats {
+ uint64_t n_packets; /* Number of matched packets. */
+ uint64_t n_bytes; /* Number of matched bytes. */
};
-struct odp_flowvec {
- struct odp_flow *flows;
- int n_flows;
+enum odp_key_type {
+ ODP_KEY_ATTR_UNSPEC,
+ ODP_KEY_ATTR_TUN_ID, /* 64-bit tunnel ID */
+ ODP_KEY_ATTR_IN_PORT, /* 32-bit ODP port number */
+ ODP_KEY_ATTR_ETHERNET, /* struct odp_key_ethernet */
+ ODP_KEY_ATTR_8021Q, /* struct odp_key_8021q */
+ ODP_KEY_ATTR_ETHERTYPE, /* 16-bit Ethernet type */
+ ODP_KEY_ATTR_IPV4, /* struct odp_key_ipv4 */
+ ODP_KEY_ATTR_IPV6, /* struct odp_key_ipv6 */
+ ODP_KEY_ATTR_TCP, /* struct odp_key_tcp */
+ ODP_KEY_ATTR_UDP, /* struct odp_key_udp */
+ ODP_KEY_ATTR_ICMP, /* struct odp_key_icmp */
+ ODP_KEY_ATTR_ICMPV6, /* struct odp_key_icmpv6 */
+ ODP_KEY_ATTR_ARP, /* struct odp_key_arp */
+ __ODP_KEY_ATTR_MAX
};
-/* The VLAN id is 12 bits, so we can use the entire 16 bits to indicate
- * special conditions. All ones is used to match that no VLAN id was
- * set. */
-#define ODP_VLAN_NONE 0xffff
+#define ODP_KEY_ATTR_MAX (__ODP_KEY_ATTR_MAX - 1)
-/* Action types. */
-#define ODPAT_OUTPUT 0 /* Output to switch port. */
-#define ODPAT_OUTPUT_GROUP 1 /* Output to all ports in group. */
-#define ODPAT_CONTROLLER 2 /* Send copy to controller. */
-#define ODPAT_SET_VLAN_VID 3 /* Set the 802.1q VLAN id. */
-#define ODPAT_SET_VLAN_PCP 4 /* Set the 802.1q priority. */
-#define ODPAT_STRIP_VLAN 5 /* Strip the 802.1q header. */
-#define ODPAT_SET_DL_SRC 6 /* Ethernet source address. */
-#define ODPAT_SET_DL_DST 7 /* Ethernet destination address. */
-#define ODPAT_SET_NW_SRC 8 /* IP source address. */
-#define ODPAT_SET_NW_DST 9 /* IP destination address. */
-#define ODPAT_SET_TP_SRC 10 /* TCP/UDP source port. */
-#define ODPAT_SET_TP_DST 11 /* TCP/UDP destination port. */
-#define ODPAT_N_ACTIONS 12
-
-struct odp_action_output {
- __u16 type; /* ODPAT_OUTPUT. */
- __u16 port; /* Output port. */
- __u16 reserved1;
- __u16 reserved2;
+struct odp_key_ethernet {
+ uint8_t eth_src[6];
+ uint8_t eth_dst[6];
};
-struct odp_action_output_group {
- __u16 type; /* ODPAT_OUTPUT_GROUP. */
- __u16 group; /* Group number. */
- __u16 reserved1;
- __u16 reserved2;
+struct odp_key_8021q {
+ ovs_be16 q_tpid;
+ ovs_be16 q_tci;
};
-struct odp_action_controller {
- __u16 type; /* ODPAT_OUTPUT_CONTROLLER. */
- __u16 reserved;
- __u32 arg; /* Copied to struct odp_msg 'arg' member. */
+struct odp_key_ipv4 {
+ ovs_be32 ipv4_src;
+ ovs_be32 ipv4_dst;
+ uint8_t ipv4_proto;
+ uint8_t ipv4_tos;
};
-/* Action structure for ODPAT_SET_VLAN_VID. */
-struct odp_action_vlan_vid {
- __u16 type; /* ODPAT_SET_VLAN_VID. */
- __be16 vlan_vid; /* VLAN id. */
- __u16 reserved1;
- __u16 reserved2;
+struct odp_key_ipv6 {
+ ovs_be32 ipv6_src[4];
+ ovs_be32 ipv6_dst[4];
+ uint8_t ipv6_proto;
+ uint8_t ipv6_tos;
};
-/* Action structure for ODPAT_SET_VLAN_PCP. */
-struct odp_action_vlan_pcp {
- __u16 type; /* ODPAT_SET_VLAN_PCP. */
- __u8 vlan_pcp; /* VLAN priority. */
- __u8 reserved1;
- __u16 reserved2;
- __u16 reserved3;
+struct odp_key_tcp {
+ ovs_be16 tcp_src;
+ ovs_be16 tcp_dst;
};
-/* Action structure for ODPAT_SET_DL_SRC/DST. */
-struct odp_action_dl_addr {
- __u16 type; /* ODPAT_SET_DL_SRC/DST. */
- __u8 dl_addr[ETH_ALEN]; /* Ethernet address. */
+struct odp_key_udp {
+ ovs_be16 udp_src;
+ ovs_be16 udp_dst;
};
-/* Action structure for ODPAT_SET_NW_SRC/DST. */
-struct odp_action_nw_addr {
- __u16 type; /* ODPAT_SET_TW_SRC/DST. */
- __u16 reserved;
- __be32 nw_addr; /* IP address. */
+struct odp_key_icmp {
+ uint8_t icmp_type;
+ uint8_t icmp_code;
};
-/* Action structure for ODPAT_SET_TP_SRC/DST. */
-struct odp_action_tp_port {
- __u16 type; /* ODPAT_SET_TP_SRC/DST. */
- __be16 tp_port; /* TCP/UDP port. */
- __u16 reserved1;
- __u16 reserved2;
+struct odp_key_icmpv6 {
+ uint8_t icmpv6_type;
+ uint8_t icmpv6_code;
};
-union odp_action {
- __u16 type;
- struct odp_action_output output;
- struct odp_action_output_group output_group;
- struct odp_action_controller controller;
- struct odp_action_vlan_vid vlan_vid;
- struct odp_action_vlan_pcp vlan_pcp;
- struct odp_action_dl_addr dl_addr;
- struct odp_action_nw_addr nw_addr;
- struct odp_action_tp_port tp_port;
+struct odp_key_arp {
+ ovs_be32 arp_sip;
+ ovs_be32 arp_tip;
+ ovs_be16 arp_op;
+ uint8_t arp_sha[6];
+ uint8_t arp_tha[6];
};
-struct odp_execute {
- __u16 in_port;
- __u16 reserved1;
- __u32 reserved2;
-
- union odp_action *actions;
- __u32 n_actions;
-
- const void *data;
- __u32 length;
+/**
+ * enum odp_flow_attr - attributes for %ODP_FLOW_* commands.
+ * @ODP_FLOW_ATTR_KEY: Nested %ODP_KEY_ATTR_* attributes specifying the flow
+ * key. Always present in notifications. Required for all requests (except
+ * dumps).
+ * @ODP_FLOW_ATTR_ACTIONS: Nested %ODPAT_* attributes specifying the actions to
+ * take for packets that match the key. Always present in notifications.
+ * Required for %ODP_FLOW_CMD_NEW requests, optional on %ODP_FLOW_CMD_SET
+ * request to change the existing actions, ignored for other requests.
+ * @ODP_FLOW_ATTR_STATS: &struct odp_flow_stats giving statistics for this
+ * flow. Present in notifications if the stats would be nonzero. Ignored in
+ * requests.
+ * @ODP_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.
+ * @ODP_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.
+ * @ODP_FLOW_ATTR_CLEAR: If present in a %ODP_FLOW_CMD_SET request, clears the
+ * last-used time, accumulated TCP flags, and statistics for this flow.
+ * Otherwise ignored in requests. Never present in notifications.
+ *
+ * These attributes follow the &struct odp_header within the Generic Netlink
+ * payload for %ODP_FLOW_* commands.
+ */
+enum odp_flow_attr {
+ ODP_FLOW_ATTR_UNSPEC,
+ ODP_FLOW_ATTR_KEY, /* Sequence of ODP_KEY_ATTR_* attributes. */
+ ODP_FLOW_ATTR_ACTIONS, /* Nested ODP_ACTION_ATTR_* attributes. */
+ ODP_FLOW_ATTR_STATS, /* struct odp_flow_stats. */
+ ODP_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
+ ODP_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
+ ODP_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
+ __ODP_FLOW_ATTR_MAX
};
-/* Values below this cutoff are 802.3 packets and the two bytes
- * following MAC addresses are used as a frame length. Otherwise, the
- * two bytes are used as the Ethernet type.
- */
-#define ODP_DL_TYPE_ETH2_CUTOFF 0x0600
+#define ODP_FLOW_ATTR_MAX (__ODP_FLOW_ATTR_MAX - 1)
-/* Value of dl_type to indicate that the frame does not include an
- * Ethernet type.
- */
-#define ODP_DL_TYPE_NOT_ETH_TYPE 0x05ff
+/* Action types. */
+enum odp_action_type {
+ ODP_ACTION_ATTR_UNSPEC,
+ ODP_ACTION_ATTR_OUTPUT, /* Output to switch port. */
+ ODP_ACTION_ATTR_CONTROLLER, /* Send copy to controller. */
+ ODP_ACTION_ATTR_SET_DL_TCI, /* Set the 802.1q TCI value. */
+ ODP_ACTION_ATTR_STRIP_VLAN, /* Strip the 802.1q header. */
+ ODP_ACTION_ATTR_SET_DL_SRC, /* Ethernet source address. */
+ ODP_ACTION_ATTR_SET_DL_DST, /* Ethernet destination address. */
+ ODP_ACTION_ATTR_SET_NW_SRC, /* IPv4 source address. */
+ ODP_ACTION_ATTR_SET_NW_DST, /* IPv4 destination address. */
+ ODP_ACTION_ATTR_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */
+ ODP_ACTION_ATTR_SET_TP_SRC, /* TCP/UDP source port. */
+ ODP_ACTION_ATTR_SET_TP_DST, /* TCP/UDP destination port. */
+ ODP_ACTION_ATTR_SET_TUNNEL, /* Set the encapsulating tunnel ID. */
+ ODP_ACTION_ATTR_SET_PRIORITY, /* Set skb->priority. */
+ ODP_ACTION_ATTR_POP_PRIORITY, /* Restore original skb->priority. */
+ ODP_ACTION_ATTR_DROP_SPOOFED_ARP, /* Drop ARPs with spoofed source MAC. */
+ __ODP_ACTION_ATTR_MAX
+};
-/* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate
- * special conditions. All ones indicates that no VLAN id was set.
- */
-#define ODP_VLAN_NONE 0xffff
+#define ODP_ACTION_ATTR_MAX (__ODP_ACTION_ATTR_MAX - 1)
-#endif /* openvswitch/datapath-protocol.h */
+#endif /* openvswitch/datapath-protocol.h */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff