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/* -*- mode: c; c-file-style: "openbsd" -*- */
/*
* Copyright (c) 2015 Nicira, Inc.
* Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _LLDPD_H
#define _LLDPD_H
#include <sys/types.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "dp-packet.h"
#include "openvswitch/list.h"
#include "lldpd-structs.h"
#include "lldp-tlv.h"
#include "packets.h"
#include "openvswitch/vlog.h"
#define ETHERTYPE_LLDP 0x88cc
#define LLDPD_TX_INTERVAL 5
#define LLDPD_TX_HOLD 4
#define LLDPD_TTL (LLDPD_TX_INTERVAL * LLDPD_TX_HOLD)
#define PROTO_SEND_SIG struct lldpd *, struct lldpd_hardware *,struct dp_packet *
#define PROTO_DECODE_SIG struct lldpd *, char *, int, struct lldpd_hardware *,\
struct lldpd_chassis **, struct lldpd_port **
#define PROTO_GUESS_SIG char *, int
struct protocol {
int mode; /* > 0 mode identifier (unique per protocol) */
int enabled; /* Is this protocol enabled? */
char *name; /* Name of protocol */
char arg; /* Argument to enable this protocol */
int(*send)(PROTO_SEND_SIG); /* How to send a frame */
int(*decode)(PROTO_DECODE_SIG); /* How to decode a frame */
int(*guess)(PROTO_GUESS_SIG); /* Can be NULL, use MAC address in this
* case
*/
struct eth_addr mac; /* Destination MAC address used by this protocol */
};
#define SMART_HIDDEN(port) (port->p_hidden_in)
struct lldpd {
struct lldpd_config g_config;
struct protocol *g_protocols;
int g_lastrid;
struct ovs_list g_chassis; /* Contains "struct lldp_chassis". */
struct ovs_list g_hardware; /* Contains "struct lldpd_hardware". */
};
static inline struct lldpd_hardware *
lldpd_first_hardware(struct lldpd *lldpd)
{
return CONTAINER_OF(ovs_list_front(&lldpd->g_hardware),
struct lldpd_hardware, h_entries);
}
/* lldpd.c */
struct lldpd_hardware *lldpd_get_hardware(struct lldpd *,
char *, int, struct lldpd_ops *);
struct lldpd_hardware *lldpd_alloc_hardware(struct lldpd *, const char *, int);
void lldpd_hardware_cleanup(struct lldpd*, struct lldpd_hardware *);
struct lldpd_mgmt *lldpd_alloc_mgmt(int family, void *addr, size_t addrsize,
u_int32_t iface);
void lldpd_recv(struct lldpd *, struct lldpd_hardware *, char *, size_t);
uint32_t lldpd_send(struct lldpd_hardware *, struct dp_packet *);
void lldpd_loop(struct lldpd *);
int lldpd_main(int, char **);
void lldpd_update_localports(struct lldpd *);
void lldpd_cleanup(struct lldpd *);
void lldpd_assign_cfg_to_protocols(struct lldpd *);
/* lldp.c */
int lldp_send(PROTO_SEND_SIG);
int lldp_decode(PROTO_DECODE_SIG);
#endif /* _LLDPD_H */
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