/* -*- mode: c; c-file-style: "openbsd" -*- */

/*

 * Copyright (c) 2012 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 _CTL_H

#define _CTL_H

#if HAVE_CONFIG_H

#  include <config.h>

#endif

#include <stdint.h>

#include "marshal.h"

enum hmsg_type {

	NONE,

	GET_CONFIG,	        /* Get global configuration */

	SET_CONFIG,		/* Change global configuration */

	GET_INTERFACES,		/* Get list of interfaces */

	GET_CHASSIS,		/* Get local chassis */

	GET_INTERFACE,		/* Get all information related to an interface */

	GET_DEFAULT_PORT,	/* Get all information related to default port */

	SET_PORT,		/* Set port-related information (location, power, policy) */

	SUBSCRIBE,		/* Subscribe to neighbor changes */

	NOTIFICATION,		/* Notification message (sent by lldpd!) */

};

/** Header for the control protocol.

 *

 * The protocol is pretty simple. We send a single message containing the

 * provided message type with the message length, followed by the message

 * content.

 */

struct hmsg_header {

	enum hmsg_type type;

	size_t         len;

};

#define HMSG_MAX_SIZE (1<<19)

/* ctl.c */

int	 ctl_create(const char *);

int	 ctl_connect(const char *);

void	 ctl_cleanup(const char *);

int	 ctl_msg_send_unserialized(uint8_t **, size_t *,

				       enum hmsg_type,

				       void *, struct marshal_info *);

size_t	 ctl_msg_recv_unserialized(uint8_t **, size_t *,

				       enum hmsg_type,

				       void **, struct marshal_info *);

#endif