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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2014 Tom Gundersen
Copyright (C) 2014 Susant Sahani
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#pragma once
#include "log.h"
#include "list.h"
#include "refcnt.h"
#include "lldp-tlv.h"
#include "prioq.h"
typedef struct lldp_neighbour_port lldp_neighbour_port;
typedef struct lldp_chassis lldp_chassis;
typedef struct lldp_chassis_id lldp_chassis_id;
typedef struct lldp_agent_statistics lldp_agent_statistics;
struct lldp_neighbour_port {
uint8_t type;
uint8_t *data;
uint16_t length;
usec_t until;
unsigned prioq_idx;
lldp_chassis *c;
tlv_packet *packet;
LIST_FIELDS(lldp_neighbour_port, port);
};
int lldp_neighbour_port_new(lldp_chassis *c, tlv_packet *tlv, lldp_neighbour_port **ret);
void lldp_neighbour_port_free(lldp_neighbour_port *p);
void lldp_neighbour_port_remove_and_free(lldp_neighbour_port *p);
DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_neighbour_port *, lldp_neighbour_port_free);
#define _cleanup_lldp_neighbour_port_free_ _cleanup_(lldp_neighbour_port_freep)
struct lldp_chassis_id {
uint8_t type;
uint16_t length;
uint8_t *data;
};
struct lldp_chassis {
RefCount n_ref;
lldp_chassis_id chassis_id;
Prioq *by_expiry;
Hashmap *neighbour_mib;
LIST_HEAD(lldp_neighbour_port, ports);
};
int lldp_chassis_new(tlv_packet *tlv,
Prioq *by_expiry,
Hashmap *neighbour_mib,
lldp_chassis **ret);
void lldp_chassis_free(lldp_chassis *c);
DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_chassis *, lldp_chassis_free);
#define _cleanup_lldp_chassis_free_ _cleanup_(lldp_chassis_freep)
int lldp_mib_update_objects(lldp_chassis *c, tlv_packet *tlv);
int lldp_mib_add_objects(Prioq *by_expiry, Hashmap *neighbour_mib, tlv_packet *tlv);
int lldp_mib_remove_objects(lldp_chassis *c, tlv_packet *tlv);
int lldp_read_chassis_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data);
int lldp_read_port_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data);
int lldp_read_ttl(tlv_packet *tlv, uint16_t *ttl);
int lldp_read_system_name(tlv_packet *tlv, uint16_t *length, char **data);
int lldp_read_system_description(tlv_packet *tlv, uint16_t *length, char **data);
int lldp_read_system_capability(tlv_packet *tlv, uint16_t *data);
int lldp_read_port_description(tlv_packet *tlv, uint16_t *length, char **data);
int lldp_handle_packet(tlv_packet *m, uint16_t length);
#define log_lldp(fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "LLDP: " fmt, ##__VA_ARGS__)
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