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/*
 * Host Identity Protocol
 * Copyright (C) 2002-05 the Boeing Company
 * 
 * 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.
 *
 * 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.
 *
 *  hip_globals.h
 *
 *  Author:     Jeff Ahrenholz, <jeffrey.m.ahrenholz@boeing.com>
 *  
 */
#include <openssl/dsa.h>        /* DSA support                  */
#include <openssl/dh.h>         /* Diffie-Hellman contexts      */
#include <math.h>               /* for exponential macros (reg life) */
#include <hip/hip_types.h>
#include <hip/hip_stun.h>

/* global variables */

/* Registration global variables */
extern long int num_entries;            /* number of entries to store in the registration table when -g option is activated (used in rvs mode) */

extern int min_life;             /* to store info from rvs (used in normal mode) */
extern int max_life;                    
extern int reg_type;

extern int add_reg_info;        /* to add the parameter (used in rvs mode) */
extern int add_reg_request;                     /*      (used in normal mode) */ 
extern int add_reg_response;                    /*      (used in rvs mode) */
extern int add_reg_failed;                      /*      (used in rvs mode) */

extern int resp_lifetime;       /* values received from a reg_response parameter (used in rvs mode) */
extern int resp_reg_type;
extern int fail_type;           /* values received from a reg_failed parameter (used in rvs mode) */
extern int fail_reg_type;

extern int repeat_reg;          /* in case we need to update the registration  (used in normal mode) */
extern int repeat_type;

extern int need_to_send_update2;

/* Relaying global variables  (used only in rvs mode) */
extern from fr;
extern via fr2;
extern int no_R1;

/* Array storing HIP association structs (this is the state machine state) */
extern hip_assoc hip_assoc_table[MAX_CONNECTIONS];
extern int max_hip_assoc;
extern const hip_hit zero_hit;

/* Array storing HIP registrations structs */
extern hip_reg hip_reg_table[MAX_REGISTRATIONS];
extern long int num_hip_reg;

/* Linked list of my host identities */
extern hi_node *my_hi_head;

/* Linked list of my addresses */
extern sockaddr_list *my_addr_head;

/* Linked list of peer host identities */
extern hi_node *peer_hi_head;

/* Filenames for configuration files */
extern char conf_filename[255];
extern char my_hi_filename[255];
extern char known_hi_filename[255];

/* Linked list of Diffie-Hellman contexts */
extern dh_cache_entry *dh_cache;

/* Diffie-Hellman constants */
extern const unsigned char *dhprime[DH_MAX];
extern const int dhprime_len[DH_MAX]; /* only used by new_dh_cache_entry()
                                           use DH_size() elsewhere */
extern unsigned char dhgen[DH_MAX];

extern int pfk_seqno; /* PFKEY messages need to be numbered */

extern int s_hip, s_pfk; /* PFKEY and RAW socket handles */
extern int s_hip_udp; /* socket for UDP-encapsulated HIP packets */
#undef s_net
extern int s_net; /* netlink socket */
extern int s6_hip; /* RAW IPv6 socket handle */
extern int s_stat; /* status socket */

extern int is_behind_nat; /* determined with STUN : indicates whether the host is behind a NAT or not */
extern StunAddress4 STUN_server_addr;

/* Global options */
extern struct hip_opt OPT;

/* Global configuration data */
extern struct hip_conf HCNF;

#ifdef __UMH__
extern int pfkeysp[2];
extern int g_state;
#endif
#ifdef __CYGWIN__
extern int netlsp[2];
#endif
#ifdef __WIN32__
extern int netlsp[2];
#endif

const unsigned char khi_context_id[16];

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