/* This file is part of Netsukuku
 * (c) Copyright 2004 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
 *
 * This source code 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.
 *
 * This source code 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.
 * Please refer to the GNU Public License for more details.
 *
 * You should have received a copy of the GNU Public License along with
 * this source code; if not, write to:
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef NETSUKUKU_H
#define NETSUKUKU_H

#include "config.h"
#include "igs.h"

#define VERSION_STR				"NetsukukuD "VERSION

#ifdef DEBUG
#undef VERSION_STR
#define VERSION_STR				"NetsukukuD "VERSION" (debug)"
#endif

struct {
        int netsplit_inet_mode;
        int netsplit_ntk_mode;
} netsplit;

/*
 * current_globals
 *
 * Here there are the main globals variables used among the code.
 */
struct current_globals {
	/* 
	 * Internal map 
	 */
	map_node *int_map;			/*Internal Map */

	/* 
	 * External map 
	 */
	map_gnode **ext_map;		/*External Map. */
	quadro_group cur_quadg;

	/* 
	 * Border nodes maps.(bmap.h) 
	 */
	map_bnode **bnode_map;
	u_int *bmap_nodes;			/* bnode counter for each map */
	u_int *bmap_nodes_closed;	/* number of closed bnodes   */
	u_int *bmap_nodes_opened;	/*   "     " opened   "      */

	/* 
	 * Myself
	 */
	inet_prefix cur_ip;
	map_node *cur_node;

	/* 
	 * external rnode cache list. (see gmap.h) 
	 */
	ext_rnode_cache *cur_erc;
	u_int cur_erc_counter;

	/* 
	 * Current Qspn id and qspn time 
	 */
	int *cur_qspn_id;			/*The current qspn_id we are processing. 
								   It is cur_qspn_id[levels] big */
	struct timeval *cur_qspn_time;	/*When the last qspn round was received/sent 
									   (gettimeofday format) */
	/*
	 * Internet gateways 
	 */
	inet_gw **igws;
	int *igws_counter;
	inet_gw **my_igws;			/* my_igws[level] points to our inet gateway
								   present at igws[level]. It's the same of using
								   igw_find_node(igws, me.cur_quadg.gnode[_EL(level)]); */
	u_char my_bandwidth;		/* The bandwidth of the Internet connection 
								   we are sharing */
	u_char inet_connected;		/* If it is 1, we are connected to the Internet */

	/* 
	 * Network interfaces 
	 */
	interface cur_ifs[MAX_INTERFACES];
	int cur_ifs_n;				/* number of interfaces present
								   in `cur_ifs' */

	time_t uptime;				/*The time when we finished the hooking, 
								   to get the the actual uptime just do: 
								   time(0)-me.uptime */
} me;

#define NTK_TCP_PORT		269
#define NTK_UDP_RADAR_PORT	269

#define ANDNA_UDP_PORT 	   	277
#define ANDNA_TCP_PORT		277

const static u_short ntk_udp_radar_port = NTK_UDP_RADAR_PORT,
	ntk_tcp_port = NTK_TCP_PORT;
const static u_short andna_udp_port = ANDNA_UDP_PORT,
	andna_tcp_port = ANDNA_TCP_PORT;

#define NTK_CONFIG_FILE		CONF_DIR "/netsukuku.conf"
#define NTK_PID_FILE		PID_DIR  "/ntkd.pid"


#define INT_MAP_FILE		DATA_DIR "/ntk_internal_map"
#define EXT_MAP_FILE		DATA_DIR "/ntk_external_map"
#define BNODE_MAP_FILE		DATA_DIR "/ntk_bnode_map"

#define ANDNA_HNAMES_FILE	CONF_DIR "/andna_hostnames"
#define SNSD_NODES_FILE		CONF_DIR "/snsd_nodes"
#define ANDNA_CACHE_FILE	DATA_DIR "/andna_cache"
#define LCLKEY_FILE		DATA_DIR "/andna_lcl_keyring"
#define LCL_FILE		DATA_DIR "/andna_lcl_cache"
#define RHC_FILE		DATA_DIR "/andna_rh_cache"
#define COUNTER_C_FILE		DATA_DIR "/andna_counter_cache"

#define IPMASQ_SCRIPT_FILE	CONF_DIR "/ip_masquerade.sh"
#define TCSHAPER_SCRIPT_FILE	CONF_DIR "/tc_shaper.sh"

/*
 * ServOpt
 *
 * Options
 */
typedef struct {
	char *config_file;
	char *pid_file;

	int family;

	char *ifs[MAX_INTERFACES];
	int ifs_n;					/* number of interfaces present in `ifs' */

	char *int_map_file;
	char *ext_map_file;
	char *bnode_map_file;

	char *andna_hnames_file;
	char *snsd_nodes_file;
	char *andna_cache_file;
	char *lclkey_file;
	char *lcl_file;
	char *rhc_file;
	char *counter_c_file;

	char daemon;

	char restricted;
	int restricted_class;
	char inet_connection;		/* If it's 1, we are connected 
								   to the Internet */
	char share_internet;
	char shape_internet;
	char use_shared_inet;
	inet_prefix inet_gw;
	char *inet_gw_dev;
	char **inet_hosts;			/* Hosts to be pinged in order to check
								   if the internet connection is up */
	int inet_hosts_counter;
	char *ip_masq_script;
	char *tc_shaper_script;

	/* The bandwidths of the Internet connection we are sharing.
	 * If we are just leeching they are all 0. */
	u_int my_upload_bw;
	u_int my_dnload_bw;

	char disable_andna;
	char disable_resolvconf;

	int max_connections;
	int max_accepts_per_host;
	int max_accepts_per_host_time;

	char dbg_lvl;
} ServOpt;
ServOpt server_opt;

time_t sigterm_timestamp, sighup_timestamp, sigalrm_timestamp;

/*
 * set_option_literal: set an option from a default value
 */
#define set_option_literal(opt, l) \
{ \
	if(!(*opt = malloc(strlen(l)+1))) \
	{ \
		perror("Unable to allocate memory for option default value");\
		exit(-1); \
	} \
	strcpy(*opt, l); \
}

/*
 * set_option_str: set an option from a default value
 */
#define set_option_str(opt, str) \
{ \
	if(!(*opt = realloc(*opt, strlen(str) + 1))) \
	{ \
		perror("Unable to allocate memory for option"); \
		exit(-1); \
	} \
	strcpy(*opt, str); \
}

#endif							/*NETSUKUKU_H */