/*
- * 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
* 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 <stdint.h>
-#define ovs_be16 uint16_t
-#define ovs_be32 uint32_t
-#define ovs_be64 uint64_t
+#include "openvswitch/types.h"
+#include <sys/socket.h>
#endif
+#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
+
+#include <linux/if_link.h>
+#include <linux/netlink.h>
+
#define ODP_MAX 256 /* Maximum number of datapaths. */
#define ODP_DP_CREATE _IO('O', 0)
#define ODP_GET_LISTEN_MASK _IOW('O', 5, int)
#define ODP_SET_LISTEN_MASK _IOR('O', 6, int)
-#define ODP_PORT_ATTACH _IOR('O', 7, struct odp_port)
-#define ODP_PORT_DETACH _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_VPORT_NEW _IOR('O', 7, struct odp_vport)
+#define ODP_VPORT_DEL _IOR('O', 8, struct odp_vport)
+#define ODP_VPORT_GET _IOWR('O', 9, struct odp_vport)
+#define ODP_VPORT_SET _IOR('O', 22, struct odp_vport)
+#define ODP_VPORT_DUMP _IOWR('O', 10, struct odp_vport)
-#define ODP_FLOW_GET _IOWR('O', 13, struct odp_flow)
+#define ODP_FLOW_GET _IOWR('O', 13, struct odp_flowvec)
#define ODP_FLOW_PUT _IOWR('O', 14, struct odp_flow)
-#define ODP_FLOW_LIST _IOWR('O', 15, struct odp_flowvec)
+#define ODP_FLOW_DUMP _IOWR('O', 15, struct odp_flow_dump)
#define ODP_FLOW_FLUSH _IO('O', 16)
#define ODP_FLOW_DEL _IOWR('O', 17, struct odp_flow)
#define ODP_SET_SFLOW_PROBABILITY _IOR('O', 19, int)
#define ODP_GET_SFLOW_PROBABILITY _IOW('O', 20, int)
-#define ODP_VPORT_ADD _IOR('O', 21, struct odp_vport_add)
-#define ODP_VPORT_MOD _IOR('O', 22, struct odp_vport_mod)
-#define ODP_VPORT_DEL _IO('O', 23)
-#define ODP_VPORT_STATS_GET _IOWR('O', 24, struct odp_vport_stats_req)
-#define ODP_VPORT_ETHER_GET _IOWR('O', 25, struct odp_vport_ether)
-#define ODP_VPORT_ETHER_SET _IOW('O', 26, struct odp_vport_ether)
-#define ODP_VPORT_MTU_GET _IOWR('O', 27, struct odp_vport_mtu)
-#define ODP_VPORT_MTU_SET _IOW('O', 28, struct odp_vport_mtu)
-#define ODP_VPORT_STATS_SET _IOWR('O', 29, struct odp_vport_stats_req)
struct odp_stats {
/* Flows. */
/* Logical ports. */
#define ODPP_LOCAL ((uint16_t)0)
#define ODPP_NONE ((uint16_t)-1)
-#define ODPP_NORMAL ((uint16_t)-2)
/* Listening channels. */
#define _ODPL_MISS_NR 0 /* Packet missed in flow table. */
#define ODPL_SFLOW (1 << _ODPL_SFLOW_NR)
#define ODPL_ALL (ODPL_MISS | ODPL_ACTION | ODPL_SFLOW)
+enum odp_packet_type {
+ ODP_PACKET_ATTR_UNSPEC,
+ ODP_PACKET_ATTR_TYPE, /* 32-bit enum, one of _ODP_*_NR. */
+ ODP_PACKET_ATTR_PACKET, /* Packet data. */
+ ODP_PACKET_ATTR_KEY, /* Nested ODP_KEY_ATTR_* attributes. */
+ ODP_PACKET_ATTR_USERDATA, /* 64-bit data from ODPAT_CONTROLLER. */
+ ODP_PACKET_ATTR_SAMPLE_POOL, /* # sampling candidate packets so far. */
+ ODP_PACKET_ATTR_ACTIONS, /* Nested ODPAT_* attributes. */
+ __ODP_PACKET_ATTR_MAX
+};
+
+#define ODP_PACKET_ATTR_MAX (__ODP_PACKET_ATTR_MAX - 1)
+
/**
- * 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 the ID (in network byte order) of the tunnel that
- * encapsulated this packet. It is 0 if the packet was not received on a tunnel.
+ * struct odp_packet - header for packets passed up between kernel and
+ * userspace.
+ * @dp_idx: Number of datapath to which the packet belongs.
+ * @len: Length of complete message, including this header.
*
- * 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.
+ * The header is followed by a sequence of Netlink attributes. The
+ * %ODP_PACKET_ATTR_TYPE, %ODP_PACKET_ATTR_PACKET, and %ODP_PACKET_ATTR_KEY
+ * attributes are always present. When @type == %_ODPL_ACTION_NR, the
+ * %ODP_PACKET_ATTR_USERDATA attribute is included if it would be nonzero.
+ * When @type == %_ODPL_SFLOW_NR, the %ODP_PACKET_ATTR_SAMPLE_POOL and
+ * %ODP_PACKET_ATTR_ACTIONS attributes are included.
*
- * 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.
+ * For @type of %_ODPL_ACTION_NR, %ODP_PACKET_ATTR_PACKET reflects changes made
+ * by actions preceding %ODPAT_CONTROLLER, but %ODP_PACKET_ATTR_KEY is the flow
+ * key extracted from the packet as originally received.
*/
-struct odp_msg {
- uint32_t type;
- uint32_t length;
- uint16_t port;
- uint16_t reserved;
- uint32_t arg;
+struct odp_packet {
+ uint32_t dp_idx;
+ uint32_t len;
};
+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
+};
+
+#define ODP_VPORT_TYPE_MAX (__ODP_VPORT_TYPE_MAX - 1)
+
/**
- * 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.
+ * struct odp_vport - header with basic information about a virtual port.
+ * @dp_idx: Number of datapath to which the vport belongs.
+ * @len: Length of this structure plus the Netlink attributes following it.
+ * @total_len: Total space available for kernel reply to request.
*
- * 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.
+ * Followed by &struct nlattr attributes, whose types are drawn from
+ * %ODP_VPORT_ATTR_*, up to a length of @len bytes including the &struct
+ * odp_vport header.
*/
-struct odp_sflow_sample_header {
- uint32_t sample_pool;
- uint32_t n_actions;
+struct odp_vport {
+ uint32_t dp_idx;
+ uint32_t len;
+ uint32_t total_len;
};
-#define ODP_PORT_INTERNAL (1 << 0) /* This port is simulated. */
-struct odp_port {
- char devname[16]; /* IFNAMSIZ */
- uint16_t port;
- uint16_t flags;
- uint32_t reserved2;
+enum {
+ 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_portvec {
- struct odp_port *ports;
- uint32_t n_ports;
+#define ODP_VPORT_ATTR_MAX (__ODP_VPORT_ATTR_MAX - 1)
+
+/* 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
};
+#define ODP_PATCH_ATTR_MAX (__ODP_PATCH_ATTR_MAX - 1)
+
struct odp_flow_stats {
uint64_t n_packets; /* Number of matched packets. */
uint64_t n_bytes; /* Number of matched bytes. */
uint16_t error; /* Used by ODP_FLOW_GET. */
};
-/*
- * The datapath protocol adopts the Linux convention for TCI fields: if an
- * 802.1Q header is present then its TCI value is used verbatim except that the
- * CFI bit (0x1000) is always set to 1, and all-bits-zero indicates no 802.1Q
- * header.
- */
-#define ODP_TCI_PRESENT 0x1000 /* CFI bit */
-
-struct odp_flow_key {
- ovs_be32 tun_id; /* Encapsulating tunnel ID. */
- ovs_be32 nw_src; /* IP source address. */
- ovs_be32 nw_dst; /* IP destination address. */
- uint16_t in_port; /* Input switch port. */
- ovs_be16 dl_tci; /* All zeros if 802.1Q header absent,
- * ODP_TCI_PRESENT set if present. */
- ovs_be16 dl_type; /* Ethernet frame type. */
- ovs_be16 tp_src; /* TCP/UDP source port. */
- ovs_be16 tp_dst; /* TCP/UDP destination port. */
- uint8_t dl_src[6]; /* Ethernet source address. */
- uint8_t dl_dst[6]; /* Ethernet destination address. */
- uint8_t nw_proto; /* IP protocol or lower 8 bits of
- ARP opcode. */
- uint8_t nw_tos; /* IP ToS (DSCP field, 6 bits). */
+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_TCP, /* struct odp_key_tcp */
+ ODP_KEY_ATTR_UDP, /* struct odp_key_udp */
+ ODP_KEY_ATTR_ICMP, /* struct odp_key_icmp */
+ ODP_KEY_ATTR_ARP, /* struct odp_key_arp */
+ __ODP_KEY_ATTR_MAX
+};
+
+#define ODP_KEY_ATTR_MAX (__ODP_KEY_ATTR_MAX - 1)
+
+struct odp_key_ethernet {
+ uint8_t eth_src[6];
+ uint8_t eth_dst[6];
+};
+
+struct odp_key_8021q {
+ ovs_be16 q_tpid;
+ ovs_be16 q_tci;
+};
+
+struct odp_key_ipv4 {
+ ovs_be32 ipv4_src;
+ ovs_be32 ipv4_dst;
+ uint8_t ipv4_proto;
+ uint8_t ipv4_tos;
+};
+
+struct odp_key_tcp {
+ ovs_be16 tcp_src;
+ ovs_be16 tcp_dst;
+};
+
+struct odp_key_udp {
+ ovs_be16 udp_src;
+ ovs_be16 udp_dst;
+};
+
+struct odp_key_icmp {
+ uint8_t icmp_type;
+ uint8_t icmp_code;
+};
+
+struct odp_key_arp {
+ ovs_be32 arp_sip;
+ ovs_be32 arp_tip;
+ ovs_be16 arp_op;
};
/* Flags for ODP_FLOW. */
#define ODPFF_ZERO_TCP_FLAGS (1 << 0) /* Zero the TCP flags. */
+#define ODPFF_EOF (1 << 1) /* ODP_FLOW_DUMP: end of flow table. */
struct odp_flow {
struct odp_flow_stats stats;
- struct odp_flow_key key;
- union odp_action *actions;
- uint32_t n_actions;
+ struct nlattr *key;
+ uint32_t key_len;
+ struct nlattr *actions;
+ uint32_t actions_len;
uint32_t flags;
};
uint32_t n_flows;
};
-/* Action types. */
-#define ODPAT_OUTPUT 0 /* Output to switch port. */
-#define ODPAT_CONTROLLER 2 /* Send copy to controller. */
-#define ODPAT_SET_DL_TCI 3 /* Set the 802.1q VLAN VID and/or PCP. */
-#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_NW_TOS 10 /* IP ToS/DSCP field (6 bits). */
-#define ODPAT_SET_TP_SRC 11 /* TCP/UDP source port. */
-#define ODPAT_SET_TP_DST 12 /* TCP/UDP destination port. */
-#define ODPAT_SET_TUNNEL 13 /* Set the encapsulating tunnel ID. */
-#define ODPAT_SET_PRIORITY 14 /* Set skb->priority. */
-#define ODPAT_POP_PRIORITY 15 /* Restore original skb->priority. */
-#define ODPAT_DROP_SPOOFED_ARP 16 /* Drop ARPs with spoofed source MAC. */
-#define ODPAT_N_ACTIONS 17
-
-struct odp_action_output {
- uint16_t type; /* ODPAT_OUTPUT. */
- uint16_t port; /* Output port. */
- uint16_t reserved1;
- uint16_t reserved2;
-};
-
-struct odp_action_controller {
- uint16_t type; /* ODPAT_OUTPUT_CONTROLLER. */
- uint16_t reserved;
- uint32_t arg; /* Copied to struct odp_msg 'arg' member. */
-};
-
-struct odp_action_tunnel {
- uint16_t type; /* ODPAT_SET_TUNNEL. */
- uint16_t reserved;
- ovs_be32 tun_id; /* Tunnel ID. */
-};
-
-/* Action structure for ODPAT_SET_DL_TCI. */
-struct odp_action_dl_tci {
- uint16_t type; /* ODPAT_SET_DL_TCI. */
- ovs_be16 tci; /* New TCI. Bits not in mask must be zero. */
- ovs_be16 mask; /* 0x0fff to set VID, 0xe000 to set PCP,
- * or 0xefff to set both. */
- uint16_t reserved;
-};
-
-/* Action structure for ODPAT_SET_DL_SRC/DST. */
-struct odp_action_dl_addr {
- uint16_t type; /* ODPAT_SET_DL_SRC/DST. */
- uint8_t dl_addr[6]; /* Ethernet address. */
-};
-
-/* Action structure for ODPAT_SET_NW_SRC/DST. */
-struct odp_action_nw_addr {
- uint16_t type; /* ODPAT_SET_TW_SRC/DST. */
- uint16_t reserved;
- ovs_be32 nw_addr; /* IP address. */
-};
-
-struct odp_action_nw_tos {
- uint16_t type; /* ODPAT_SET_NW_TOS. */
- uint8_t nw_tos; /* IP ToS/DSCP field (6 bits). */
- uint8_t reserved1;
- uint16_t reserved2;
- uint16_t reserved3;
-};
-
-/* Action structure for ODPAT_SET_TP_SRC/DST. */
-struct odp_action_tp_port {
- uint16_t type; /* ODPAT_SET_TP_SRC/DST. */
- ovs_be16 tp_port; /* TCP/UDP port. */
- uint16_t reserved1;
- uint16_t reserved2;
+/* ODP_FLOW_DUMP argument.
+ *
+ * This is used to iterate through the flow table flow-by-flow. Each
+ * ODP_FLOW_DUMP call either stores a new odp_flow into 'flow' or stores
+ * ODPFF_EOF into flow->flags to indicate that the end of the table has been
+ * reaches, and updates 'state' in-place.
+ *
+ * Before the first call, zero 'state'. The format of 'state' is otherwise
+ * unspecified.
+ */
+struct odp_flow_dump {
+ struct odp_flow *flow;
+ uint32_t state[2];
};
-/* Action structure for ODPAT_SET_PRIORITY. */
-struct odp_action_priority {
- uint16_t type; /* ODPAT_SET_PRIORITY. */
- uint16_t reserved;
- uint32_t priority; /* skb->priority value. */
+/* Action types. */
+enum odp_action_type {
+ ODPAT_UNSPEC,
+ ODPAT_OUTPUT, /* Output to switch port. */
+ ODPAT_CONTROLLER, /* Send copy to controller. */
+ ODPAT_SET_DL_TCI, /* Set the 802.1q TCI value. */
+ ODPAT_STRIP_VLAN, /* Strip the 802.1q header. */
+ ODPAT_SET_DL_SRC, /* Ethernet source address. */
+ ODPAT_SET_DL_DST, /* Ethernet destination address. */
+ ODPAT_SET_NW_SRC, /* IPv4 source address. */
+ ODPAT_SET_NW_DST, /* IPv4 destination address. */
+ ODPAT_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */
+ ODPAT_SET_TP_SRC, /* TCP/UDP source port. */
+ ODPAT_SET_TP_DST, /* TCP/UDP destination port. */
+ ODPAT_SET_TUNNEL, /* Set the encapsulating tunnel ID. */
+ ODPAT_SET_PRIORITY, /* Set skb->priority. */
+ ODPAT_POP_PRIORITY, /* Restore original skb->priority. */
+ ODPAT_DROP_SPOOFED_ARP, /* Drop ARPs with spoofed source MAC. */
+ __ODPAT_MAX
};
-union odp_action {
- uint16_t type;
- struct odp_action_output output;
- struct odp_action_controller controller;
- struct odp_action_tunnel tunnel;
- struct odp_action_dl_tci dl_tci;
- struct odp_action_dl_addr dl_addr;
- struct odp_action_nw_addr nw_addr;
- struct odp_action_nw_tos nw_tos;
- struct odp_action_tp_port tp_port;
- struct odp_action_priority priority;
-};
+#define ODPAT_MAX (__ODPAT_MAX - 1)
struct odp_execute {
- union odp_action *actions;
- uint32_t n_actions;
+ struct nlattr *actions;
+ uint32_t actions_len;
const void *data;
uint32_t length;
};
-#define VPORT_TYPE_SIZE 16
-struct odp_vport_add {
- char port_type[VPORT_TYPE_SIZE];
- char devname[16]; /* IFNAMSIZ */
- void *config;
-};
-
-struct odp_vport_mod {
- char devname[16]; /* IFNAMSIZ */
- void *config;
-};
-
-struct odp_vport_stats {
- uint64_t rx_packets;
- uint64_t tx_packets;
- uint64_t rx_bytes;
- uint64_t tx_bytes;
- uint64_t rx_dropped;
- uint64_t tx_dropped;
- uint64_t rx_errors;
- uint64_t tx_errors;
- uint64_t rx_frame_err;
- uint64_t rx_over_err;
- uint64_t rx_crc_err;
- uint64_t collisions;
-};
-
-struct odp_vport_stats_req {
- char devname[16]; /* IFNAMSIZ */
- struct odp_vport_stats stats;
-};
-
-struct odp_vport_ether {
- char devname[16]; /* IFNAMSIZ */
- unsigned char ether_addr[6];
-};
-
-struct odp_vport_mtu {
- char devname[16]; /* IFNAMSIZ */
- uint16_t mtu;
-};
-
-/* 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
-
-/* Value of dl_type to indicate that the frame does not include an
- * Ethernet type.
- */
-#define ODP_DL_TYPE_NOT_ETH_TYPE 0x05ff
-
#endif /* openvswitch/datapath-protocol.h */
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