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/*
* Copyright (c) 2015 Nicira, Inc.
* Copyright (c) 2014 Wind River Systems, Inc.
* Copyright (c) 2015 Avaya, 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 OVS_LLDP_H
#define OVS_LLDP_H
#include <stdint.h>
#include "dp-packet.h"
#include "openvswitch/hmap.h"
#include "openvswitch/list.h"
#include "lldp/lldpd.h"
#include "ovs-atomic.h"
#include "packets.h"
#include "timer.h"
/* Transmit every LLDPD_TX_INTERVAL seconds. */
#define LLDP_DEFAULT_TRANSMIT_INTERVAL_MS (LLDPD_TX_INTERVAL * 1000)
struct flow;
struct netdev;
struct smap;
/* Structure per LLDP instance (at the moment per port when enabled).
*/
struct lldp {
struct hmap_node hmap_node; /* Node in all_lldps list. */
struct lldpd *lldpd;
char *name; /* Name of the port. */
struct timer tx_timer; /* Send LLDP when expired. */
struct hmap mappings_by_isid; /* "struct" indexed by ISID */
struct hmap mappings_by_aux; /* "struct" indexed by aux */
struct ovs_list active_mapping_queue;
struct ovs_refcount ref_cnt;
bool enabled; /* LLDP enabled on port */
};
/* Configuration specific to Auto Attach.
*/
struct aa_settings {
char *system_description;
char *system_name;
};
/* Configuration of Auto Attach mappings.
*/
struct aa_mapping_settings {
uint32_t isid;
uint16_t vlan;
};
enum bridge_aa_vlan_oper {
BRIDGE_AA_VLAN_OPER_UNDEF,
BRIDGE_AA_VLAN_OPER_ADD,
BRIDGE_AA_VLAN_OPER_REMOVE
};
/* Bridge Auto Attach operations. Mostly for adding/removing VLAN on
* the trunk port connected to the Auto Attach server.
*/
struct bridge_aa_vlan {
struct ovs_list list_node;
char *port_name;
uint16_t vlan;
enum bridge_aa_vlan_oper oper;
};
void lldp_init(void);
long long int lldp_wait(struct lldp *lldp);
long long int lldp_wake_time(const struct lldp *lldp);
void lldp_run(struct lldpd *cfg);
bool lldp_should_send_packet(struct lldp *cfg);
bool lldp_should_process_flow(struct lldp *lldp, const struct flow *flow);
bool lldp_configure(struct lldp *lldp, const struct smap *cfg);
bool lldp_is_enabled(struct lldp *lldp);
void lldp_process_packet(struct lldp *cfg, const struct dp_packet *);
void lldp_put_packet(struct lldp *lldp, struct dp_packet *packet,
const struct eth_addr eth_src);
void lldpd_assign_cfg_to_protocols(struct lldpd *cfg);
struct lldp * lldp_create(const struct netdev *netdev, const uint32_t mtu,
const struct smap *cfg);
struct lldp * lldp_ref(const struct lldp *lldp_);
void lldp_unref(struct lldp *lldp);
int aa_get_vlan_queued(struct ovs_list *list);
unsigned int aa_get_vlan_queue_size(void);
int aa_configure(const struct aa_settings *s);
int aa_mapping_register(void *aux, const struct aa_mapping_settings *s);
int aa_mapping_unregister(void *aux);
/* Used by unit tests */
struct lldp * lldp_create_dummy(void);
void lldp_destroy_dummy(struct lldp *);
#endif /* OVS_LLDP_H */
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