/*

 * Soft:        Vrrpd is an implementation of VRRPv2 as specified in rfc2338.

 *              VRRP is a protocol which elect a master server on a LAN. If the

 *              master fails, a backup server takes over.

 *              The original implementation has been made by jerome etienne.

 *

 * Part:        vrrp_snmp.c program include file.

 *

 * Author:      Vincent Bernat <bernat@luffy.cx>

 *

 *              This program 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 General Public License for more details.

 *

 *              This program is free software; you can redistribute it and/or

 *              modify it under the terms of the GNU General Public License

 *              as published by the Free Software Foundation; either version

 *              2 of the License, or (at your option) any later version.

 *

 * Copyright (C) 2001-2017 Alexandre Cassen, <acassen@gmail.com>

 */

#ifndef _VRRP_SNMP_H

#define _VRRP_SNMP_H

#include "config.h"

#ifdef _WITH_SNMP_RFC_

#include "timer.h"

#endif

#include "vrrp.h"

#ifdef _WITH_SNMP_RFCV2_

enum rfcv2_trap_auth_error_type {

	invalidAuthType = 1,

#ifdef _WITH_VRRP_AUTH_

	authTypeMismatch,

	authFailure

#endif

};

#endif

#ifdef _WITH_SNMP_RFCV3_

enum rfcv3_notify_proto_error_type {

	noError = 0,

	ipTtlError,

	versionError,

	checksumError,

	vrIdError

};

/* RFC6527 isn't clear about the meaning of the following. However,

 * the only meaning I can see is that PRIORITY means became master

 * after receiving a priority 0 advert, preempted means that we were

 * receiving lower priority adverts or we are the address owner, and

 * so transitioned to master, and MASTER_NO_RESPONSE means that we

 * didn't receive any adverts for 3 * master advert interval + skew time.

 * However, it is possible the PRIORITY is meant to mean priority 255

 * (i.e. the address owner), in which case we don't have a specific

 * reason for transition following receiving a priority 0 advert. */

enum rfcv3_master_reason_type {

	VRRPV3_MASTER_REASON_NOT_MASTER = 0,

	VRRPV3_MASTER_REASON_PRIORITY,

	VRRPV3_MASTER_REASON_PREEMPTED,

	VRRPV3_MASTER_REASON_MASTER_NO_RESPONSE

};

#endif

#ifdef _WITH_SNMP_RFC_

/* Global vars */

extern timeval_t snmp_vrrp_start_time;

#endif

/* Prototypes */

extern void vrrp_snmp_agent_init(const char *);

extern void vrrp_snmp_agent_close(void);

#ifdef _WITH_SNMP_VRRP_

extern void vrrp_snmp_instance_trap(vrrp_t *);

extern void vrrp_snmp_group_trap(vrrp_sgroup_t *);

#endif

#ifdef _WITH_SNMP_RFCV2_

extern void vrrp_rfcv2_snmp_new_master_trap(vrrp_t *);

extern void vrrp_rfcv2_snmp_auth_err_trap(vrrp_t *, struct in_addr, enum rfcv2_trap_auth_error_type);

#endif

#ifdef _WITH_SNMP_RFCV3_

extern void vrrp_rfcv3_snmp_new_master_notify(vrrp_t *);

extern void vrrp_rfcv3_snmp_proto_err_notify(vrrp_t *);

#endif

#endif