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openvswitch/include/openflow/openflow-1.1.h
Simon Horman b02475c53b User-Space MPLS actions and matches 
This patch implements use-space datapath and non-datapath code
to match and use the datapath API set out in Leo Alterman's patch
"user-space datapath: Add basic MPLS support to kernel".

The resulting MPLS implementation supports:
* Pushing a single MPLS label
* Poping a single MPLS label
* Modifying an MPLS lable using set-field or load actions
  that act on the label value, tc and bos bit.
* There is no support for manipulating the TTL
  this is considered future work.

The single-level push pop limitation is implemented by processing
push, pop and set-field/load actions in order and discarding information
that would require multiple levels of push/pop to be supported.

e.g.
   push,push -> the first push is discarded
   pop,pop -> the first pop is discarded

This patch is based heavily on work by Ravi K.

Cc: Ravi K <rkerur@gmail.com>
Reviewed-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
2013-02-05 09:17:45 -08:00

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/* Copyright (c) 2008, 2011, 2012 The Board of Trustees of The Leland Stanford
* Junior University
*
* We are making the OpenFlow specification and associated documentation
* (Software) available for public use and benefit with the expectation
* that others will use, modify and enhance the Software and contribute
* those enhancements back to the community. However, since we would
* like to make the Software available for broadest use, with as few
* restrictions as possible permission is hereby granted, free of
* charge, to any person obtaining a copy of this Software to deal in
* the Software under the copyrights without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* The name and trademarks of copyright holder(s) may NOT be used in
* advertising or publicity pertaining to the Software or any
* derivatives without specific, written prior permission.
*/
/*
* Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* OpenFlow: protocol between controller and datapath. */
#ifndef OPENFLOW_11_H
#define OPENFLOW_11_H 1
#include "openflow/openflow-common.h"
/* OpenFlow 1.1 uses 32-bit port numbers. Open vSwitch, for now, uses OpenFlow
* 1.0 port numbers internally. We map them to OpenFlow 1.0 as follows:
*
* OF1.1 <=> OF1.0
* ----------------------- ---------------
* 0x00000000...0x0000feff <=> 0x0000...0xfeff "physical" ports
* 0x0000ff00...0xfffffeff <=> not supported
* 0xffffff00...0xffffffff <=> 0xff00...0xffff "reserved" OFPP_* ports
*
* OFPP11_OFFSET is the value that must be added or subtracted to convert
* an OpenFlow 1.0 reserved port number to or from, respectively, the
* corresponding OpenFlow 1.1 reserved port number.
*/
#define OFPP11_MAX 0xffffff00
#define OFPP11_OFFSET (OFPP11_MAX - OFPP_MAX)
/* Reserved wildcard port used only for flow mod (delete) and flow stats
* requests. Selects all flows regardless of output port
* (including flows with no output port)
*
* Define it via OFPP_NONE (0xFFFF) so that OFPP_ANY is still an enum ofp_port
*/
#define OFPP_ANY OFPP_NONE
/* OpenFlow 1.1 port config flags are just the common flags. */
#define OFPPC11_ALL \
(OFPPC_PORT_DOWN | OFPPC_NO_RECV | OFPPC_NO_FWD | OFPPC_NO_PACKET_IN)
/* OpenFlow 1.1 specific current state of the physical port. These are not
* configurable from the controller.
*/
enum ofp11_port_state {
OFPPS11_BLOCKED = 1 << 1, /* Port is blocked */
OFPPS11_LIVE = 1 << 2, /* Live for Fast Failover Group. */
#define OFPPS11_ALL (OFPPS_LINK_DOWN | OFPPS11_BLOCKED | OFPPS11_LIVE)
};
/* OpenFlow 1.1 specific features of ports available in a datapath. */
enum ofp11_port_features {
OFPPF11_40GB_FD = 1 << 7, /* 40 Gb full-duplex rate support. */
OFPPF11_100GB_FD = 1 << 8, /* 100 Gb full-duplex rate support. */
OFPPF11_1TB_FD = 1 << 9, /* 1 Tb full-duplex rate support. */
OFPPF11_OTHER = 1 << 10, /* Other rate, not in the list. */
OFPPF11_COPPER = 1 << 11, /* Copper medium. */
OFPPF11_FIBER = 1 << 12, /* Fiber medium. */
OFPPF11_AUTONEG = 1 << 13, /* Auto-negotiation. */
OFPPF11_PAUSE = 1 << 14, /* Pause. */
OFPPF11_PAUSE_ASYM = 1 << 15 /* Asymmetric pause. */
#define OFPPF11_ALL ((1 << 16) - 1)
};
/* Description of a port */
struct ofp11_port {
ovs_be32 port_no;
uint8_t pad[4];
uint8_t hw_addr[OFP_ETH_ALEN];
uint8_t pad2[2]; /* Align to 64 bits. */
char name[OFP_MAX_PORT_NAME_LEN]; /* Null-terminated */
ovs_be32 config; /* Bitmap of OFPPC_* flags. */
ovs_be32 state; /* Bitmap of OFPPS_* and OFPPS11_* flags. */
/* Bitmaps of OFPPF_* and OFPPF11_* that describe features. All bits
* zeroed if unsupported or unavailable. */
ovs_be32 curr; /* Current features. */
ovs_be32 advertised; /* Features being advertised by the port. */
ovs_be32 supported; /* Features supported by the port. */
ovs_be32 peer; /* Features advertised by peer. */
ovs_be32 curr_speed; /* Current port bitrate in kbps. */
ovs_be32 max_speed; /* Max port bitrate in kbps */
};
OFP_ASSERT(sizeof(struct ofp11_port) == 64);
/* Modify behavior of the physical port */
struct ofp11_port_mod {
ovs_be32 port_no;
uint8_t pad[4];
uint8_t hw_addr[OFP_ETH_ALEN]; /* The hardware address is not
configurable. This is used to
sanity-check the request, so it must
be the same as returned in an
ofp11_port struct. */
uint8_t pad2[2]; /* Pad to 64 bits. */
ovs_be32 config; /* Bitmap of OFPPC_* flags. */
ovs_be32 mask; /* Bitmap of OFPPC_* flags to be changed. */
ovs_be32 advertise; /* Bitmap of OFPPF_* and OFPPF11_*. Zero all bits
to prevent any action taking place. */
uint8_t pad3[4]; /* Pad to 64 bits. */
};
OFP_ASSERT(sizeof(struct ofp11_port_mod) == 32);
/* Group setup and teardown (controller -> datapath). */
struct ofp11_group_mod {
ovs_be16 command; /* One of OFPGC_*. */
uint8_t type; /* One of OFPGT_*. */
uint8_t pad; /* Pad to 64 bits. */
ovs_be32 group_id; /* Group identifier. */
/* struct ofp11_bucket buckets[0]; The bucket length is inferred from the
length field in the header. */
};
OFP_ASSERT(sizeof(struct ofp11_group_mod) == 8);
/* Query for port queue configuration. */
struct ofp11_queue_get_config_request {
ovs_be32 port;
/* Port to be queried. Should refer
to a valid physical port (i.e. < OFPP_MAX) */
uint8_t pad[4];
};
OFP_ASSERT(sizeof(struct ofp11_queue_get_config_request) == 8);
/* Group commands */
enum ofp11_group_mod_command {
OFPGC11_ADD, /* New group. */
OFPGC11_MODIFY, /* Modify all matching groups. */
OFPGC11_DELETE, /* Delete all matching groups. */
};
/* OpenFlow 1.1 specific capabilities supported by the datapath (struct
* ofp_switch_features, member capabilities). */
enum ofp11_capabilities {
OFPC11_GROUP_STATS = 1 << 3, /* Group statistics. */
};
enum ofp11_action_type {
OFPAT11_OUTPUT, /* Output to switch port. */
OFPAT11_SET_VLAN_VID, /* Set the 802.1q VLAN id. */
OFPAT11_SET_VLAN_PCP, /* Set the 802.1q priority. */
OFPAT11_SET_DL_SRC, /* Ethernet source address. */
OFPAT11_SET_DL_DST, /* Ethernet destination address. */
OFPAT11_SET_NW_SRC, /* IP source address. */
OFPAT11_SET_NW_DST, /* IP destination address. */
OFPAT11_SET_NW_TOS, /* IP ToS (DSCP field, 6 bits). */
OFPAT11_SET_NW_ECN, /* IP ECN (2 bits). */
OFPAT11_SET_TP_SRC, /* TCP/UDP/SCTP source port. */
OFPAT11_SET_TP_DST, /* TCP/UDP/SCTP destination port. */
OFPAT11_COPY_TTL_OUT, /* Copy TTL "outwards" -- from next-to-outermost
to outermost */
OFPAT11_COPY_TTL_IN, /* Copy TTL "inwards" -- from outermost to
next-to-outermost */
OFPAT11_SET_MPLS_LABEL, /* MPLS label */
OFPAT11_SET_MPLS_TC, /* MPLS TC */
OFPAT11_SET_MPLS_TTL, /* MPLS TTL */
OFPAT11_DEC_MPLS_TTL, /* Decrement MPLS TTL */
OFPAT11_PUSH_VLAN, /* Push a new VLAN tag */
OFPAT11_POP_VLAN, /* Pop the outer VLAN tag */
OFPAT11_PUSH_MPLS, /* Push a new MPLS Label Stack Entry */
OFPAT11_POP_MPLS, /* Pop the outer MPLS Label Stack Entry */
OFPAT11_SET_QUEUE, /* Set queue id when outputting to a port */
OFPAT11_GROUP, /* Apply group. */
OFPAT11_SET_NW_TTL, /* IP TTL. */
OFPAT11_DEC_NW_TTL, /* Decrement IP TTL. */
OFPAT11_EXPERIMENTER = 0xffff
};
#define OFPMT11_STANDARD_LENGTH 88
struct ofp11_match_header {
ovs_be16 type; /* One of OFPMT_* */
ovs_be16 length; /* Length of match */
};
OFP_ASSERT(sizeof(struct ofp11_match_header) == 4);
/* Fields to match against flows */
struct ofp11_match {
struct ofp11_match_header omh;
ovs_be32 in_port; /* Input switch port. */
ovs_be32 wildcards; /* Wildcard fields. */
uint8_t dl_src[OFP_ETH_ALEN]; /* Ethernet source address. */
uint8_t dl_src_mask[OFP_ETH_ALEN]; /* Ethernet source address mask. */
uint8_t dl_dst[OFP_ETH_ALEN]; /* Ethernet destination address. */
uint8_t dl_dst_mask[OFP_ETH_ALEN]; /* Ethernet destination address mask. */
ovs_be16 dl_vlan; /* Input VLAN id. */
uint8_t dl_vlan_pcp; /* Input VLAN priority. */
uint8_t pad1[1]; /* Align to 32-bits */
ovs_be16 dl_type; /* Ethernet frame type. */
uint8_t nw_tos; /* IP ToS (actually DSCP field, 6 bits). */
uint8_t nw_proto; /* IP protocol or lower 8 bits of ARP opcode. */
ovs_be32 nw_src; /* IP source address. */
ovs_be32 nw_src_mask; /* IP source address mask. */
ovs_be32 nw_dst; /* IP destination address. */
ovs_be32 nw_dst_mask; /* IP destination address mask. */
ovs_be16 tp_src; /* TCP/UDP/SCTP source port. */
ovs_be16 tp_dst; /* TCP/UDP/SCTP destination port. */
ovs_be32 mpls_label; /* MPLS label. */
uint8_t mpls_tc; /* MPLS TC. */
uint8_t pad2[3]; /* Align to 64-bits */
ovs_be64 metadata; /* Metadata passed between tables. */
ovs_be64 metadata_mask; /* Mask for metadata. */
};
OFP_ASSERT(sizeof(struct ofp11_match) == OFPMT11_STANDARD_LENGTH);
/* Flow wildcards. */
enum ofp11_flow_wildcards {
OFPFW11_IN_PORT = 1 << 0, /* Switch input port. */
OFPFW11_DL_VLAN = 1 << 1, /* VLAN id. */
OFPFW11_DL_VLAN_PCP = 1 << 2, /* VLAN priority. */
OFPFW11_DL_TYPE = 1 << 3, /* Ethernet frame type. */
OFPFW11_NW_TOS = 1 << 4, /* IP ToS (DSCP field, 6 bits). */
OFPFW11_NW_PROTO = 1 << 5, /* IP protocol. */
OFPFW11_TP_SRC = 1 << 6, /* TCP/UDP/SCTP source port. */
OFPFW11_TP_DST = 1 << 7, /* TCP/UDP/SCTP destination port. */
OFPFW11_MPLS_LABEL = 1 << 8, /* MPLS label. */
OFPFW11_MPLS_TC = 1 << 9, /* MPLS TC. */
/* Wildcard all fields. */
OFPFW11_ALL = ((1 << 10) - 1)
};
/* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate
* special conditions.
*/
enum ofp11_vlan_id {
OFPVID11_ANY = 0xfffe, /* Indicate that a VLAN id is set but don't care
about it's value. Note: only valid when
specifying the VLAN id in a match */
OFPVID11_NONE = 0xffff, /* No VLAN id was set. */
};
enum ofp11_instruction_type {
OFPIT11_GOTO_TABLE = 1, /* Setup the next table in the lookup
pipeline */
OFPIT11_WRITE_METADATA = 2, /* Setup the metadata field for use later
in pipeline */
OFPIT11_WRITE_ACTIONS = 3, /* Write the action(s) onto the datapath
action set */
OFPIT11_APPLY_ACTIONS = 4, /* Applies the action(s) immediately */
OFPIT11_CLEAR_ACTIONS = 5, /* Clears all actions from the datapath
action set */
OFPIT11_EXPERIMENTER = 0xFFFF /* Experimenter instruction */
};
#define OFPIT11_ALL (OFPIT11_GOTO_TABLE | OFPIT11_WRITE_METADATA | \
OFPIT11_WRITE_ACTIONS | OFPIT11_APPLY_ACTIONS | \
OFPIT11_CLEAR_ACTIONS)
#define OFP11_INSTRUCTION_ALIGN 8
/* Generic ofp_instruction structure. */
struct ofp11_instruction {
ovs_be16 type; /* Instruction type */
ovs_be16 len; /* Length of this struct in bytes. */
uint8_t pad[4]; /* Align to 64-bits */
};
OFP_ASSERT(sizeof(struct ofp11_instruction) == 8);
/* Instruction structure for OFPIT_GOTO_TABLE */
struct ofp11_instruction_goto_table {
ovs_be16 type; /* OFPIT_GOTO_TABLE */
ovs_be16 len; /* Length of this struct in bytes. */
uint8_t table_id; /* Set next table in the lookup pipeline */
uint8_t pad[3]; /* Pad to 64 bits. */
};
OFP_ASSERT(sizeof(struct ofp11_instruction_goto_table) == 8);
/* Instruction structure for OFPIT_WRITE_METADATA */
struct ofp11_instruction_write_metadata {
ovs_be16 type; /* OFPIT_WRITE_METADATA */
ovs_be16 len; /* Length of this struct in bytes. */
uint8_t pad[4]; /* Align to 64-bits */
ovs_be64 metadata; /* Metadata value to write */
ovs_be64 metadata_mask; /* Metadata write bitmask */
};
OFP_ASSERT(sizeof(struct ofp11_instruction_write_metadata) == 24);
/* Instruction structure for OFPIT_WRITE/APPLY/CLEAR_ACTIONS */
struct ofp11_instruction_actions {
ovs_be16 type; /* One of OFPIT_*_ACTIONS */
ovs_be16 len; /* Length of this struct in bytes. */
uint8_t pad[4]; /* Align to 64-bits */
/* struct ofp_action_header actions[0]; Actions associated with
OFPIT_WRITE_ACTIONS and
OFPIT_APPLY_ACTIONS */
};
OFP_ASSERT(sizeof(struct ofp11_instruction_actions) == 8);
/* Instruction structure for experimental instructions */
struct ofp11_instruction_experimenter {
ovs_be16 type; /* OFPIT11_EXPERIMENTER */
ovs_be16 len; /* Length of this struct in bytes */
ovs_be32 experimenter; /* Experimenter ID which takes the same form
as in struct ofp_vendor_header. */
/* Experimenter-defined arbitrary additional data. */
};
OFP_ASSERT(sizeof(struct ofp11_instruction_experimenter) == 8);
/* Action structure for OFPAT_OUTPUT, which sends packets out 'port'.
* When the 'port' is the OFPP_CONTROLLER, 'max_len' indicates the max
* number of bytes to send. A 'max_len' of zero means no bytes of the
* packet should be sent.*/
struct ofp11_action_output {
ovs_be16 type; /* OFPAT11_OUTPUT. */
ovs_be16 len; /* Length is 16. */
ovs_be32 port; /* Output port. */
ovs_be16 max_len; /* Max length to send to controller. */
uint8_t pad[6]; /* Pad to 64 bits. */
};
OFP_ASSERT(sizeof(struct ofp11_action_output) == 16);
/* Action structure for OFPAT_GROUP. */
struct ofp11_action_group {
ovs_be16 type; /* OFPAT11_GROUP. */
ovs_be16 len; /* Length is 8. */
ovs_be32 group_id; /* Group identifier. */
};
OFP_ASSERT(sizeof(struct ofp11_action_group) == 8);
/* OFPAT_SET_QUEUE action struct: send packets to given queue on port. */
struct ofp11_action_set_queue {
ovs_be16 type; /* OFPAT11_SET_QUEUE. */
ovs_be16 len; /* Len is 8. */
ovs_be32 queue_id; /* Queue id for the packets. */
};
OFP_ASSERT(sizeof(struct ofp11_action_set_queue) == 8);
/* Action structure for OFPAT11_SET_MPLS_LABEL. */
struct ofp11_action_mpls_label {
ovs_be16 type; /* OFPAT11_SET_MPLS_LABEL. */
ovs_be16 len; /* Length is 8. */
ovs_be32 mpls_label; /* MPLS label */
};
OFP_ASSERT(sizeof(struct ofp11_action_mpls_label) == 8);
/* Action structure for OFPAT11_SET_MPLS_TC. */
struct ofp11_action_mpls_tc {
ovs_be16 type; /* OFPAT11_SET_MPLS_TC. */
ovs_be16 len; /* Length is 8. */
uint8_t mpls_tc; /* MPLS TC */
uint8_t pad[3];
};
OFP_ASSERT(sizeof(struct ofp11_action_mpls_tc) == 8);
/* Action structure for OFPAT11_SET_MPLS_TTL. */
struct ofp11_action_mpls_ttl {
ovs_be16 type; /* OFPAT11_SET_MPLS_TTL. */
ovs_be16 len; /* Length is 8. */
uint8_t mpls_ttl; /* MPLS TTL */
uint8_t pad[3];
};
OFP_ASSERT(sizeof(struct ofp11_action_mpls_ttl) == 8);
/* Action structure for OFPAT11_SET_NW_ECN. */
struct ofp11_action_nw_ecn {
ovs_be16 type; /* OFPAT11_SET_TW_SRC/DST. */
ovs_be16 len; /* Length is 8. */
uint8_t nw_ecn; /* IP ECN (2 bits). */
uint8_t pad[3];
};
OFP_ASSERT(sizeof(struct ofp11_action_nw_ecn) == 8);
/* Action structure for OFPAT11_SET_NW_TTL. */
struct ofp11_action_nw_ttl {
ovs_be16 type; /* OFPAT11_SET_NW_TTL. */
ovs_be16 len; /* Length is 8. */
uint8_t nw_ttl; /* IP TTL */
uint8_t pad[3];
};
OFP_ASSERT(sizeof(struct ofp11_action_nw_ttl) == 8);
/* Action structure for OFPAT11_PUSH_VLAN/MPLS. */
struct ofp11_action_push {
ovs_be16 type; /* OFPAT11_PUSH_VLAN/MPLS. */
ovs_be16 len; /* Length is 8. */
ovs_be16 ethertype; /* Ethertype */
uint8_t pad[2];
};
OFP_ASSERT(sizeof(struct ofp11_action_push) == 8);
/* Action structure for OFPAT11_POP_MPLS. */
struct ofp11_action_pop_mpls {
ovs_be16 type; /* OFPAT11_POP_MPLS. */
ovs_be16 len; /* Length is 8. */
ovs_be16 ethertype; /* Ethertype */
uint8_t pad[2];
};
OFP_ASSERT(sizeof(struct ofp11_action_pop_mpls) == 8);
/* Configure/Modify behavior of a flow table */
struct ofp11_table_mod {
uint8_t table_id; /* ID of the table, 0xFF indicates all tables */
uint8_t pad[3]; /* Pad to 32 bits */
ovs_be32 config; /* Bitmap of OFPTC_* flags */
};
OFP_ASSERT(sizeof(struct ofp11_table_mod) == 8);
/* Flags to indicate behavior of the flow table for unmatched packets.
These flags are used in ofp_table_stats messages to describe the current
configuration and in ofp_table_mod messages to configure table behavior. */
enum ofp11_table_config {
OFPTC11_TABLE_MISS_CONTROLLER = 0, /* Send to controller. */
OFPTC11_TABLE_MISS_CONTINUE = 1 << 0, /* Continue to the next table in the
pipeline (OpenFlow 1.0
behavior). */
OFPTC11_TABLE_MISS_DROP = 1 << 1, /* Drop the packet. */
OFPTC11_TABLE_MISS_MASK = 3
};
/* Flow setup and teardown (controller -> datapath). */
struct ofp11_flow_mod {
ovs_be64 cookie; /* Opaque controller-issued identifier. */
ovs_be64 cookie_mask; /* Mask used to restrict the cookie bits
that must match when the command is
OFPFC_MODIFY* or OFPFC_DELETE*. A value
of 0 indicates no restriction. */
/* Flow actions. */
uint8_t table_id; /* ID of the table to put the flow in */
uint8_t command; /* One of OFPFC_*. */
ovs_be16 idle_timeout; /* Idle time before discarding (seconds). */
ovs_be16 hard_timeout; /* Max time before discarding (seconds). */
ovs_be16 priority; /* Priority level of flow entry. */
ovs_be32 buffer_id; /* Buffered packet to apply to (or -1).
Not meaningful for OFPFC_DELETE*. */
ovs_be32 out_port; /* For OFPFC_DELETE* commands, require
matching entries to include this as an
output port. A value of OFPP_ANY
indicates no restriction. */
ovs_be32 out_group; /* For OFPFC_DELETE* commands, require
matching entries to include this as an
output group. A value of OFPG11_ANY
indicates no restriction. */
ovs_be16 flags; /* One of OFPFF_*. */
uint8_t pad[2];
/* Followed by an ofp11_match structure. */
/* Followed by an instruction set. */
};
OFP_ASSERT(sizeof(struct ofp11_flow_mod) == 40);
/* Group types. Values in the range [128, 255] are reserved for experimental
* use. */
enum ofp11_group_type {
OFPGT11_ALL, /* All (multicast/broadcast) group. */
OFPGT11_SELECT, /* Select group. */
OFPGT11_INDIRECT, /* Indirect group. */
OFPGT11_FF /* Fast failover group. */
};
/* Group numbering. Groups can use any number up to OFPG_MAX. */
enum ofp11_group {
/* Last usable group number. */
OFPG11_MAX = 0xffffff00,
/* Fake groups. */
OFPG11_ALL = 0xfffffffc, /* Represents all groups for group delete
commands. */
OFPG11_ANY = 0xffffffff /* Wildcard group used only for flow stats
requests. Selects all flows regardless
of group (including flows with no
group). */
};
/* Bucket for use in groups. */
struct ofp11_bucket {
ovs_be16 len; /* Length the bucket in bytes, including
this header and any padding to make it
64-bit aligned. */
ovs_be16 weight; /* Relative weight of bucket. Only
defined for select groups. */
ovs_be32 watch_port; /* Port whose state affects whether this
bucket is live. Only required for fast
failover groups. */
ovs_be32 watch_group; /* Group whose state affects whether this
bucket is live. Only required for fast
failover groups. */
uint8_t pad[4];
/* struct ofp_action_header actions[0]; The action length is inferred
from the length field in the
header. */
};
OFP_ASSERT(sizeof(struct ofp11_bucket) == 16);
/* Queue configuration for a given port. */
struct ofp11_queue_get_config_reply {
ovs_be32 port;
uint8_t pad[4];
/* struct ofp_packet_queue queues[0]; List of configured queues. */
};
OFP_ASSERT(sizeof(struct ofp11_queue_get_config_reply) == 8);
struct ofp11_stats_msg {
struct ofp_header header;
ovs_be16 type; /* One of the OFPST_* constants. */
ovs_be16 flags; /* OFPSF_REQ_* flags (none yet defined). */
uint8_t pad[4];
/* Followed by the body of the request. */
};
OFP_ASSERT(sizeof(struct ofp11_stats_msg) == 16);
/* Vendor extension stats message. */
struct ofp11_vendor_stats_msg {
struct ofp11_stats_msg osm; /* Type OFPST_VENDOR. */
ovs_be32 vendor; /* Vendor ID:
* - MSB 0: low-order bytes are IEEE OUI.
* - MSB != 0: defined by OpenFlow
* consortium. */
/* Followed by vendor-defined arbitrary additional data. */
};
OFP_ASSERT(sizeof(struct ofp11_vendor_stats_msg) == 20);
/* Stats request of type OFPST_FLOW. */
struct ofp11_flow_stats_request {
uint8_t table_id; /* ID of table to read (from ofp_table_stats),
0xff for all tables. */
uint8_t pad[3]; /* Align to 64 bits. */
ovs_be32 out_port; /* Require matching entries to include this
as an output port. A value of OFPP_ANY
indicates no restriction. */
ovs_be32 out_group; /* Require matching entries to include this
as an output group. A value of OFPG11_ANY
indicates no restriction. */
uint8_t pad2[4]; /* Align to 64 bits. */
ovs_be64 cookie; /* Require matching entries to contain this
cookie value */
ovs_be64 cookie_mask; /* Mask used to restrict the cookie bits that
must match. A value of 0 indicates
no restriction. */
/* Followed by an ofp11_match structure. */
};
OFP_ASSERT(sizeof(struct ofp11_flow_stats_request) == 32);
/* Body of reply to OFPST_FLOW request. */
struct ofp11_flow_stats {
ovs_be16 length; /* Length of this entry. */
uint8_t table_id; /* ID of table flow came from. */
uint8_t pad;
ovs_be32 duration_sec; /* Time flow has been alive in seconds. */
ovs_be32 duration_nsec; /* Time flow has been alive in nanoseconds beyond
duration_sec. */
ovs_be16 priority; /* Priority of the entry. Only meaningful
when this is not an exact-match entry. */
ovs_be16 idle_timeout; /* Number of seconds idle before expiration. */
ovs_be16 hard_timeout; /* Number of seconds before expiration. */
ovs_be16 flags; /* OF 1.3: Set of OFPFF*. */
uint8_t pad2[4]; /* Align to 64-bits. */
ovs_be64 cookie; /* Opaque controller-issued identifier. */
ovs_be64 packet_count; /* Number of packets in flow. */
ovs_be64 byte_count; /* Number of bytes in flow. */
/* Open Flow version specific match */
/* struct ofp11_instruction instructions[0]; Instruction set. */
};
OFP_ASSERT(sizeof(struct ofp11_flow_stats) == 48);
/* Body for ofp_stats_request of type OFPST_AGGREGATE. */
/* Identical to ofp11_flow_stats_request */
/* Flow match fields. */
enum ofp11_flow_match_fields {
OFPFMF11_IN_PORT = 1 << 0, /* Switch input port. */
OFPFMF11_DL_VLAN = 1 << 1, /* VLAN id. */
OFPFMF11_DL_VLAN_PCP = 1 << 2, /* VLAN priority. */
OFPFMF11_DL_TYPE = 1 << 3, /* Ethernet frame type. */
OFPFMF11_NW_TOS = 1 << 4, /* IP ToS (DSCP field, 6 bits). */
OFPFMF11_NW_PROTO = 1 << 5, /* IP protocol. */
OFPFMF11_TP_SRC = 1 << 6, /* TCP/UDP/SCTP source port. */
OFPFMF11_TP_DST = 1 << 7, /* TCP/UDP/SCTP destination port. */
OFPFMF11_MPLS_LABEL = 1 << 8, /* MPLS label. */
OFPFMF11_MPLS_TC = 1 << 9, /* MPLS TC. */
OFPFMF11_TYPE = 1 << 10, /* Match type. */
OFPFMF11_DL_SRC = 1 << 11, /* Ethernet source address. */
OFPFMF11_DL_DST = 1 << 12, /* Ethernet destination address. */
OFPFMF11_NW_SRC = 1 << 13, /* IP source address. */
OFPFMF11_NW_DST = 1 << 14, /* IP destination address. */
OFPFMF11_METADATA = 1 << 15, /* Metadata passed between tables. */
};
/* Body of reply to OFPST_TABLE request. */
struct ofp11_table_stats {
uint8_t table_id; /* Identifier of table. Lower numbered tables
are consulted first. */
uint8_t pad[7]; /* Align to 64-bits. */
char name[OFP_MAX_TABLE_NAME_LEN];
ovs_be32 wildcards; /* Bitmap of OFPFMF_* wildcards that are
supported by the table. */
ovs_be32 match; /* Bitmap of OFPFMF_* that indicate the fields
the table can match on. */
ovs_be32 instructions; /* Bitmap of OFPIT_* values supported. */
ovs_be32 write_actions; /* Bitmap of OFPAT_* that are supported
by the table with OFPIT_WRITE_ACTIONS. */
ovs_be32 apply_actions; /* Bitmap of OFPAT_* that are supported
by the table with OFPIT_APPLY_ACTIONS. */
ovs_be32 config; /* Bitmap of OFPTC_* values */
ovs_be32 max_entries; /* Max number of entries supported. */
ovs_be32 active_count; /* Number of active entries. */
ovs_be64 lookup_count; /* Number of packets looked up in table. */
ovs_be64 matched_count; /* Number of packets that hit table. */
};
OFP_ASSERT(sizeof(struct ofp11_table_stats) == 88);
/* Body for ofp_stats_request of type OFPST_PORT. */
struct ofp11_port_stats_request {
ovs_be32 port_no; /* OFPST_PORT message must request statistics
* either for a single port (specified in
* port_no) or for all ports (if port_no ==
* OFPP_ANY). */
uint8_t pad[4];
};
OFP_ASSERT(sizeof(struct ofp11_port_stats_request) == 8);
/* Body of reply to OFPST_PORT request. If a counter is unsupported, set
* the field to all ones. */
struct ofp11_port_stats {
ovs_be32 port_no;
uint8_t pad[4]; /* Align to 64-bits. */
ovs_be64 rx_packets; /* Number of received packets. */
ovs_be64 tx_packets; /* Number of transmitted packets. */
ovs_be64 rx_bytes; /* Number of received bytes. */
ovs_be64 tx_bytes; /* Number of transmitted bytes. */
ovs_be64 rx_dropped; /* Number of packets dropped by RX. */
ovs_be64 tx_dropped; /* Number of packets dropped by TX. */
ovs_be64 rx_errors; /* Number of receive errors. This is a
super-set of receive errors and should be
great than or equal to the sum of all
rx_*_err values. */
ovs_be64 tx_errors; /* Number of transmit errors. This is a
super-set of transmit errors. */
ovs_be64 rx_frame_err; /* Number of frame alignment errors. */
ovs_be64 rx_over_err; /* Number of packets with RX overrun. */
ovs_be64 rx_crc_err; /* Number of CRC errors. */
ovs_be64 collisions; /* Number of collisions. */
};
OFP_ASSERT(sizeof(struct ofp11_port_stats) == 104);
struct ofp11_queue_stats_request {
ovs_be32 port_no; /* All ports if OFPP_ANY. */
ovs_be32 queue_id; /* All queues if OFPQ_ALL. */
};
OFP_ASSERT(sizeof(struct ofp11_queue_stats_request) == 8);
struct ofp11_queue_stats {
ovs_be32 port_no;
ovs_be32 queue_id; /* Queue id. */
ovs_be64 tx_bytes; /* Number of transmitted bytes. */
ovs_be64 tx_packets; /* Number of transmitted packets. */
ovs_be64 tx_errors; /* # of packets dropped due to overrun. */
};
OFP_ASSERT(sizeof(struct ofp11_queue_stats) == 32);
struct ofp11_group_stats_request {
ovs_be32 group_id; /* All groups if OFPG_ALL. */
uint8_t pad[4]; /* Align to 64 bits. */
};
OFP_ASSERT(sizeof(struct ofp11_group_stats_request) == 8);
/* Body of reply to OFPST11_GROUP request */
struct ofp11_group_stats {
ovs_be16 length; /* Length of this entry. */
uint8_t pad[2]; /* Align to 64 bits. */
ovs_be32 group_id; /* Group identifier. */
ovs_be32 ref_count; /* Number of flows or groups that
directly forward to this group. */
uint8_t pad2[4]; /* Align to 64 bits. */
ovs_be64 packet_count; /* Number of packets processed by group. */
ovs_be64 byte_count; /* Number of bytes processed by group. */
/* struct ofp11_bucket_counter bucket_stats[0]; */
};
OFP_ASSERT(sizeof(struct ofp11_group_stats) == 32);
/* Used in group stats replies. */
struct ofp11_bucket_counter {
ovs_be64 packet_count; /* Number of packets processed by bucket. */
ovs_be64 byte_count; /* Number of bytes processed by bucket. */
};
OFP_ASSERT(sizeof(struct ofp11_bucket_counter) == 16);
/* Body of reply to OFPST11_GROUP_DESC request. */
struct ofp11_group_desc_stats {
ovs_be16 length; /* Length of this entry. */
uint8_t type; /* One of OFPGT_*. */
uint8_t pad; /* Pad to 64 bits. */
ovs_be32 group_id; /* Group identifier. */
/* struct ofp11_bucket buckets[0]; */
};
OFP_ASSERT(sizeof(struct ofp11_group_desc_stats) == 8);
/* Send packet (controller -> datapath). */
struct ofp11_packet_out {
ovs_be32 buffer_id; /* ID assigned by datapath (-1 if none). */
ovs_be32 in_port; /* Packet's input port or OFPP_CONTROLLER. */
ovs_be16 actions_len; /* Size of action array in bytes. */
uint8_t pad[6];
/* struct ofp_action_header actions[0]; Action list. */
/* uint8_t data[0]; */ /* Packet data. The length is inferred
from the length field in the header.
(Only meaningful if buffer_id == -1.) */
};
OFP_ASSERT(sizeof(struct ofp11_packet_out) == 16);
/* Packet received on port (datapath -> controller). */
struct ofp11_packet_in {
ovs_be32 buffer_id; /* ID assigned by datapath. */
ovs_be32 in_port; /* Port on which frame was received. */
ovs_be32 in_phy_port; /* Physical Port on which frame was received. */
ovs_be16 total_len; /* Full length of frame. */
uint8_t reason; /* Reason packet is being sent (one of OFPR_*) */
uint8_t table_id; /* ID of the table that was looked up */
/* uint8_t data[0]; Ethernet frame, halfway through 32-bit word,
so the IP header is 32-bit aligned. The
amount of data is inferred from the length
field in the header. Because of padding,
offsetof(struct ofp_packet_in, data) ==
sizeof(struct ofp_packet_in) - 2. */
};
OFP_ASSERT(sizeof(struct ofp11_packet_in) == 16);
/* Flow removed (datapath -> controller). */
struct ofp11_flow_removed {
ovs_be64 cookie; /* Opaque controller-issued identifier. */
ovs_be16 priority; /* Priority level of flow entry. */
uint8_t reason; /* One of OFPRR_*. */
uint8_t table_id; /* ID of the table */
ovs_be32 duration_sec; /* Time flow was alive in seconds. */
ovs_be32 duration_nsec; /* Time flow was alive in nanoseconds beyond
duration_sec. */
ovs_be16 idle_timeout; /* Idle timeout from original flow mod. */
uint8_t pad2[2]; /* Align to 64-bits. */
ovs_be64 packet_count;
ovs_be64 byte_count;
/* Followed by an ofp11_match structure. */
};
OFP_ASSERT(sizeof(struct ofp11_flow_removed) == 40);
#endif /* openflow/openflow-1.1.h */
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