ipsec-tools/racoon/remoteconf.h

   1 /*      $NetBSD: remoteconf.h,v 1.7 2006/10/03 08:01:56 vanhu Exp $     */
   2
   3 /* Id: remoteconf.h,v 1.26 2006/05/06 15:52:44 manubsd Exp */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifndef _REMOTECONF_H
  35 #define _REMOTECONF_H
  36
  37 /* remote configuration */
  38
  39 #include <sys/queue.h>
  40 #include "genlist.h"
  41 #ifdef ENABLE_HYBRID
  42 #include "isakmp_var.h"
  43 #include "isakmp_xauth.h"
  44 #endif
  45 #include <CoreFoundation/CFData.h>
  46 #include "algorithm.h"
  47
  48
  49
  50 struct proposalspec {
  51         time_t lifetime;                /* for isakmp/ipsec */
  52         int lifebyte;                   /* for isakmp/ipsec */
  53         struct secprotospec *spspec;    /* the head is always current spec. */
  54         struct proposalspec *next;      /* the tail is the most prefered. */
  55         struct proposalspec *prev;
  56 };
  57
  58 struct secprotospec {
  59         int prop_no;
  60         int trns_no;
  61         int strength;           /* for isakmp/ipsec */
  62         int encklen;            /* for isakmp/ipsec */
  63         time_t lifetime;        /* for isakmp */
  64         int lifebyte;           /* for isakmp */
  65         int proto_id;           /* for ipsec (isakmp?) */
  66         int ipsec_level;        /* for ipsec */
  67         int encmode;            /* for ipsec */
  68         int vendorid;           /* for isakmp */
  69         char *gssid;
  70         struct sockaddr_storage *remote;
  71         int algclass[MAXALGCLASS];
  72
  73         struct secprotospec *next;      /* the tail is the most prefiered. */
  74         struct secprotospec *prev;
  75         struct proposalspec *back;
  76 };
  77
  78
  79 struct etypes {
  80         int type;
  81         struct etypes *next;
  82 };
  83
  84 enum {
  85     DPD_ALGO_DEFAULT = 0,
  86     DPD_ALGO_INBOUND_DETECT,
  87     DPD_ALGO_BLACKHOLE_DETECT,
  88     DPD_ALGO_MAX,
  89 };
  90
  91
  92 struct remoteconf {
  93         struct sockaddr_storage *remote;        /* remote IP address */
  94     int remote_prefix;                  /* allows subnet for remote address */
  95                                         /* if family is AF_UNSPEC, that is
  96                                          * for anonymous configuration. */
  97
  98         struct etypes *etypes;          /* exchange type list. the head
  99                                          * is a type to be sent first. */
 100         int doitype;                    /* doi type */
 101         int sittype;                    /* situation type */
 102
 103         int idvtype;                    /* my identifier type */
 104         vchar_t *idv;                   /* my identifier */
 105         vchar_t *key;                   /* my pre-shared key */
 106         struct genlist *idvl_p;         /* peer's identifiers list */
 107
 108         int     identity_in_keychain;   /* cert and private key is in the keychain */
 109         vchar_t *keychainCertRef;       /* peristant keychain ref for cert */
 110         int secrettype;                 /* type of secret [use, key, keychain] */
 111         vchar_t *shared_secret; /* shared secret */
 112         vchar_t *open_dir_auth_group;   /* group to be used to authorize user */
 113
 114         int certtype;                   /* certificate type if need */
 115         int getcert_method;             /* the way to get peer's certificate */
 116         int cacerttype;                 /* CA type is needed */
 117         int send_cert;                  /* send to CERT or not */
 118         int send_cr;                    /* send to CR or not */
 119         int verify_cert;                /* verify a CERT strictly */
 120         int cert_verification;  /* openssl or security framework */
 121         int cert_verification_option;   /* nothing, peers identifier, or open_dir */
 122         int verify_identifier;          /* vefify the peer's identifier */
 123         int nonce_size;                 /* the number of bytes of nonce */
 124         int passive;                    /* never initiate */
 125         int ike_frag;                   /* IKE fragmentation */
 126         int esp_frag;                   /* ESP fragmentation */
 127         int mode_cfg;                   /* Gets config through mode config */
 128         int support_proxy;              /* support mip6/proxy */
 129 #define GENERATE_POLICY_NONE   0
 130 #define GENERATE_POLICY_REQUIRE        1
 131 #define GENERATE_POLICY_UNIQUE 2
 132         int gen_policy;                 /* generate policy if no policy found */
 133         int ini_contact;                /* initial contact */
 134         int pcheck_level;               /* level of propocl checking */
 135         int nat_traversal;              /* NAT-Traversal */
 136         int natt_multiple_user; /* special handling of multiple users behind a nat - for VPN server */
 137         int natt_keepalive;             /* do we need to send natt keep alive */
 138         int dh_group;                   /* use it when only aggressive mode */
 139         struct dhgroup *dhgrp;          /* use it when only aggressive mode */
 140                                         /* above two can't be defined by user*/
 141
 142         int retry_counter;              /* times to retry. */
 143         int retry_interval;             /* interval each retry. */
 144                                 /* above 2 values are copied from localconf. */
 145
 146         int dpd;                                /* Negociate DPD support ? */
 147         int dpd_retry;                  /* in seconds */
 148         int dpd_interval;               /* in seconds */
 149         int dpd_maxfails;
 150     int dpd_algo;
 151     int idle_timeout;       /* in seconds */
 152     int idle_timeout_dir;   /* direction to check */
 153
 154         int ph1id; /* ph1id to be matched with sainfo sections */
 155
 156         int weak_phase1_check;          /* act on unencrypted deletions ? */
 157
 158         struct isakmpsa *proposal;      /* proposal list */
 159         struct remoteconf *inherited_from;      /* the original rmconf
 160                                                    from which this one
 161                                                    was inherited */
 162         struct proposalspec *prhead;
 163
 164 #ifdef ENABLE_HYBRID
 165         struct xauth_rmconf *xauth;
 166 #endif
 167     int initiate_ph1rekey;
 168     int in_list;            // in the linked list
 169     int refcount;           // ref count - in use
 170     int ike_version;
 171
 172     struct sockaddr_storage *forced_local;      /* forced local IP address */
 173
 174         TAILQ_ENTRY(remoteconf) chain;  /* next remote conf */
 175 };
 176
 177 struct dhgroup;
 178
 179 /* ISAKMP SA specification */
 180 struct isakmpsa {
 181         int version;
 182         int prop_no;
 183         int trns_no;
 184         time_t lifetime;
 185         time_t lifetimegap;
 186         size_t lifebyte;
 187         int enctype;
 188         int encklen;
 189         int authmethod;
 190         int hashtype;
 191         int vendorid;
 192         int dh_group;                           /* don't use it if aggressive mode */
 193         struct dhgroup *dhgrp;          /* don't use it if aggressive mode */
 194         int             prf;
 195         int             prfklen;
 196
 197         struct isakmpsa *next;          /* next transform */
 198         struct remoteconf *rmconf;      /* backpointer to remoteconf */
 199 };
 200
 201 struct idspec {
 202         int idtype;                     /* identifier type */
 203         vchar_t *id;                    /* identifier */
 204 };
 205
 206 typedef struct remoteconf *(rmconf_func_t) (struct remoteconf *rmconf, void *data);
 207
 208 extern struct remoteconf *getrmconf (struct sockaddr_storage *);
 209 extern struct remoteconf *getrmconf_strict
 210         (struct sockaddr_storage *remote, int allow_anon);
 211
 212 extern int no_remote_configs (int);
 213 extern struct remoteconf *copyrmconf (struct sockaddr_storage *);
 214 extern struct remoteconf *create_rmconf (void);
 215 extern void retain_rmconf(struct remoteconf *);
 216 extern void release_rmconf(struct remoteconf *);
 217 extern struct remoteconf *duprmconf (struct remoteconf *);
 218 extern void delrmconf (struct remoteconf *);
 219 extern void delisakmpsa (struct isakmpsa *);
 220 extern void deletypes (struct etypes *);
 221 extern struct etypes * dupetypes (struct etypes *);
 222 extern void insrmconf (struct remoteconf *);
 223 extern void remrmconf (struct remoteconf *);
 224 extern void flushrmconf (void);
 225 extern void initrmconf (void);
 226 extern struct etypes *check_etypeok
 227         (struct remoteconf *, u_int8_t);
 228 extern struct remoteconf *foreachrmconf (rmconf_func_t rmconf_func,
 229                                              void *data);
 230
 231 extern struct isakmpsa *newisakmpsa (void);
 232 extern struct isakmpsa *dupisakmpsa (struct isakmpsa *);
 233
 234 extern void insisakmpsa (struct isakmpsa *, struct remoteconf *);
 235
 236 extern void dumprmconf (void);
 237
 238 extern struct idspec *newidspec (void);
 239
 240 #endif /* _REMOTECONF_H */