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/*
* Copyright (c) 2008, 2010, 2011, 2012 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.
*/
#ifndef LEARNING_SWITCH_H
#define LEARNING_SWITCH_H 1
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "openvswitch/ofp-protocol.h"
struct ofpbuf;
struct rconn;
enum lswitch_mode {
LSW_NORMAL, /* Always use OFPP_NORMAL. */
LSW_FLOOD, /* Always use OFPP_FLOOD. */
LSW_LEARN /* Learn MACs at controller. */
};
struct lswitch_config {
enum lswitch_mode mode;
/* 0 to use exact-match flow entries,
* a OFPFW10_* bitmask to enable specific wildcards,
* or UINT32_MAX to use the default wildcards (wildcarding as many fields
* as possible.
*
* Ignored when max_idle < 0 (in which case no flows are set up). */
uint32_t wildcards;
/* <0: Process every packet at the controller.
* >=0: Expire flows after they are unused for 'max_idle' seconds.
* OFP_FLOW_PERMANENT: Set up permanent flows. */
int max_idle;
/* Optional "flow mod" requests to send to the switch at connection time,
* to set up the flow table. */
const struct ofputil_flow_mod *default_flows;
size_t n_default_flows;
enum ofputil_protocol usable_protocols;
/* The OpenFlow queue to use by default. Use UINT32_MAX to avoid
* specifying a particular queue. */
uint32_t default_queue;
/* Maps from a port name to a queue_id. */
const struct simap *port_queues;
/* If true, do not reply to any messages from the switch (for debugging
* fail-open mode). */
bool mute;
};
struct lswitch *lswitch_create(struct rconn *, const struct lswitch_config *);
bool lswitch_is_alive(const struct lswitch *);
void lswitch_set_queue(struct lswitch *sw, uint32_t queue);
void lswitch_run(struct lswitch *);
void lswitch_wait(struct lswitch *);
void lswitch_destroy(struct lswitch *);
void lswitch_mute(struct lswitch *);
#endif /* learning-switch.h */
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