/*

 * Soft:        Keepalived is a failover program for the LVS project

 *              <www.linuxvirtualserver.org>. It monitor & manipulate

 *              a loadbalanced server pool using multi-layer checks.

 *

 * Part:        Dynamic data structure definition.

 *

 * Author:      Alexandre Cassen, <acassen@linux-vs.org>

 *

 *              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 _GLOBAL_DATA_H

#define _GLOBAL_DATA_H

#include "config.h"

/* system includes */

#include <stdbool.h>

#include <stdio.h>

#include <sys/socket.h>

#include <sched.h>

#ifdef HAVE_LINUX_NETFILTER_X_TABLES_H

#include <linux/netfilter/x_tables.h>

#endif

#ifdef _HAVE_LIBIPSET_

#include <linux/netfilter/ipset/ip_set.h>

#endif

#ifdef _WITH_NFTABLES_

#include <linux/netfilter/nf_tables.h>

#endif

#if HAVE_DECL_RLIMIT_RTTIME == 1

#include <sys/resource.h>

#endif

/* local includes */

#include "list_head.h"

#include "vrrp_if.h"

#include "timer.h"

#ifdef _WITH_VRRP_

#include "vrrp.h"

#endif

#ifdef _WITH_LVS_

#include "ipvswrapper.h"

#include "libipvs.h"

#endif

#include "notify.h"

/* constants */

#define DEFAULT_SMTP_CONNECTION_TIMEOUT (30 * TIMER_HZ)

#ifdef _WITH_VRRP_

#define RX_BUFS_POLICY_MTU		0x01

#define RX_BUFS_POLICY_ADVERT		0x02

#define RX_BUFS_SIZE			0x04

#endif

#ifdef _WITH_LVS_

#define LVS_MAX_TIMEOUT			(86400*31)      /* 31 days */

#endif

/* email link list */

typedef struct _email {

	char				*addr;

	/* Linked list member */

	list_head_t			e_list;

} email_t;

#ifdef _WITH_LVS_

typedef enum {

	LVS_NO_FLUSH,

	LVS_FLUSH_FULL,

	LVS_FLUSH_VS

} lvs_flush_t;

#endif

/* Configuration data root */

typedef struct _data {

	const char			*process_name;

#ifdef _WITH_VRRP_

	const char			*vrrp_process_name;

#endif

#ifdef _WITH_LVS_

	const char			*lvs_process_name;

#endif

#ifdef _WITH_BFD_

	const char			*bfd_process_name;

#endif

#if HAVE_DECL_CLONE_NEWNET

	const char			*network_namespace;		/* network namespace name */

	const char			*network_namespace_ipvs;	/* network namespace name for ipvs */

	bool				namespace_with_ipsets;		/* override for namespaces with ipsets on Linux < 3.13 */

#endif

	const char			*local_name;

	const char			*instance_name;		/* keepalived instance name */

#ifdef _WITH_LINKBEAT_

	bool				linkbeat_use_polling;

#endif

	const char			*router_id;

	const char			*email_from;

	struct sockaddr_storage		smtp_server;

	const char			*smtp_helo_name;

	unsigned long			smtp_connection_to;

	list_head_t			email;

	int				smtp_alert;

	notify_script_t			*startup_script;

	unsigned			startup_script_timeout;

	notify_script_t			*shutdown_script;

	unsigned			shutdown_script_timeout;

#ifndef _ONE_PROCESS_DEBUG_

	const char			*reload_time_file;

	bool				reload_repeat;

	time_t				reload_time;

	bool				reload_date_specified;

#endif

#ifdef _WITH_VRRP_

	bool				dynamic_interfaces;

	bool				allow_if_changes;

	bool				no_email_faults;

	int				smtp_alert_vrrp;

	const char			*default_ifname;	/* Name of default interface */

	interface_t			*default_ifp;		/* Default interface for static addresses */

#endif

#ifdef _WITH_LVS_

	ipvs_timeout_t			lvs_timeouts;

	int				smtp_alert_checker;

	bool				checker_log_all_failures;

	struct lvs_syncd_config		lvs_syncd;

	bool				lvs_flush;		/* flush any residual LVS config at startup */

	lvs_flush_t			lvs_flush_onstop;	/* flush any LVS config at shutdown */

#endif

	int				max_auto_priority;

	long				min_auto_priority_delay;

#ifdef _WITH_VRRP_

	struct sockaddr_in		vrrp_mcast_group4;

	struct sockaddr_in6		vrrp_mcast_group6;

	unsigned			vrrp_garp_delay;

	timeval_t			vrrp_garp_refresh;

	unsigned			vrrp_garp_rep;

	unsigned			vrrp_garp_refresh_rep;

	unsigned			vrrp_garp_lower_prio_delay;

	unsigned			vrrp_garp_lower_prio_rep;

	unsigned			vrrp_garp_interval;

	unsigned			vrrp_gna_interval;

	bool				vrrp_lower_prio_no_advert;

	bool				vrrp_higher_prio_send_advert;

	int				vrrp_version;		/* VRRP version (2 or 3) */

#ifdef _WITH_IPTABLES_

	const char			*vrrp_iptables_inchain;

	const char			*vrrp_iptables_outchain;

#ifdef _HAVE_LIBIPSET_

	unsigned			using_ipsets;

	const char			*vrrp_ipset_address;

	const char			*vrrp_ipset_address6;

	const char			*vrrp_ipset_address_iface6;

#ifdef HAVE_IPSET_ATTR_IFACE

	const char			*vrrp_ipset_igmp;

	const char			*vrrp_ipset_mld;

#endif

#endif

#endif

#ifdef _WITH_NFTABLES_

	const char			*vrrp_nf_table_name;

	int				vrrp_nf_chain_priority;

	bool				vrrp_nf_counters;

	bool				vrrp_nf_ifindex;

#endif

	bool				vrrp_check_unicast_src;

	bool				vrrp_skip_check_adv_addr;

	bool				vrrp_strict;

	bool				have_vrrp_config;

	char				vrrp_process_priority;

	bool				vrrp_no_swap;

	unsigned			vrrp_realtime_priority;

	cpu_set_t			vrrp_cpu_mask;

#if HAVE_DECL_RLIMIT_RTTIME == 1

	rlim_t				vrrp_rlimit_rt;

#endif

#endif

#ifdef _WITH_LVS_

	bool				have_checker_config;

	char				checker_process_priority;

	bool				checker_no_swap;

	unsigned			checker_realtime_priority;

	cpu_set_t			checker_cpu_mask;

#if HAVE_DECL_RLIMIT_RTTIME == 1

	rlim_t				checker_rlimit_rt;

#endif

#endif

#ifdef _WITH_BFD_

	bool				have_bfd_config;

	char				bfd_process_priority;

	bool				bfd_no_swap;

	unsigned			bfd_realtime_priority;

	cpu_set_t			bfd_cpu_mask;

#if HAVE_DECL_RLIMIT_RTTIME == 1

	rlim_t				bfd_rlimit_rt;

#endif

#endif

	notify_fifo_t			notify_fifo;

#ifdef _WITH_VRRP_

	notify_fifo_t			vrrp_notify_fifo;

#endif

#ifdef _WITH_LVS_

	notify_fifo_t			lvs_notify_fifo;

#endif

#ifdef _WITH_VRRP_

	int				vrrp_notify_priority_changes;

#endif

#ifdef _WITH_SNMP_

	bool				enable_traps;

	const char			*snmp_socket;

#ifdef _WITH_VRRP_

#ifdef _WITH_SNMP_VRRP_

	bool				enable_snmp_vrrp;

#endif

#ifdef _WITH_SNMP_RFCV2_

	bool				enable_snmp_rfcv2;

#endif

#ifdef _WITH_SNMP_RFCV3_

	bool				enable_snmp_rfcv3;

#endif

#endif

#ifdef _WITH_LVS_

	bool				enable_snmp_checker;

#endif

#endif

#ifdef _WITH_DBUS_

	bool				enable_dbus;

	const char			*dbus_service_name;

#endif

#ifdef _WITH_VRRP_

	unsigned			vrrp_netlink_cmd_rcv_bufs;

	bool				vrrp_netlink_cmd_rcv_bufs_force;

	unsigned			vrrp_netlink_monitor_rcv_bufs;

	bool				vrrp_netlink_monitor_rcv_bufs_force;

#ifdef _WITH_CN_PROC_

	unsigned			process_monitor_rcv_bufs;

	bool				process_monitor_rcv_bufs_force;

#endif

#endif

#ifdef _WITH_LVS_

	unsigned			lvs_netlink_cmd_rcv_bufs;

	bool				lvs_netlink_cmd_rcv_bufs_force;

	unsigned			lvs_netlink_monitor_rcv_bufs;

	bool				lvs_netlink_monitor_rcv_bufs_force;

#endif

#ifdef _WITH_LVS_

	bool				rs_init_notifies;

	bool				no_checker_emails;

#endif

#ifdef _WITH_VRRP_

	int				vrrp_rx_bufs_policy;

	size_t				vrrp_rx_bufs_size;

	int				vrrp_rx_bufs_multiples;

	unsigned			vrrp_startup_delay;

	bool				log_unknown_vrids;

#endif

} data_t;

/* Global vars exported */

extern data_t *global_data;	/* Global configuration data */

extern data_t *old_global_data;	/* Old global configuration data - used during reload */

/* Prototypes */

extern void alloc_email(const char *);

extern data_t *alloc_global_data(void);

extern void init_global_data(data_t *, data_t *, bool);

extern void free_global_data(data_t *);

extern void dump_global_data(FILE *, data_t *);

#endif