sys/netipsec/ipsec6.h

   1 /*      $NetBSD: ipsec6.h,v 1.11 2008/04/27 12:58:48 degroote Exp $     */
   2 /*      $FreeBSD: src/sys/netipsec/ipsec6.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $     */
   3 /*      $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun 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 /*
  35  * IPsec controller part.
  36  */
  37
  38 #ifndef _NETIPSEC_IPSEC6_H_
  39 #define _NETIPSEC_IPSEC6_H_
  40
  41 #include <net/pfkeyv2.h>
  42 #include <netipsec/keydb.h>
  43 #ifdef __NetBSD__
  44 #include <netinet6/in6_pcb.h>
  45 #endif
  46
  47 #ifdef _KERNEL
  48 extern int ip6_esp_trans_deflev;
  49 extern int ip6_esp_net_deflev;
  50 extern int ip6_ah_trans_deflev;
  51 extern int ip6_ah_net_deflev;
  52 extern int ip6_ipsec_ecn;
  53 extern int ip6_esp_randpad;
  54 extern struct secpolicy ip6_def_policy;
  55
  56 struct inpcb;
  57 struct in6pcb;
  58
  59 /* KAME compatibility shims */
  60 #define ipsec6_getpolicybyaddr  ipsec_getpolicybyaddr
  61 #define ipsec6_getpolicybysock  ipsec_getpolicybysock
  62 #define key_freesp(_x)          KEY_FREESP(&_x)
  63
  64 int ipsec6_delete_pcbpolicy (struct in6pcb *);
  65 int ipsec6_set_policy (struct in6pcb *, int, void *, size_t, kauth_cred_t);
  66 int ipsec6_get_policy (struct in6pcb *, void *, size_t, struct mbuf **);
  67 struct secpolicy *ipsec6_checkpolicy (struct mbuf *, u_int,
  68     u_int, int *, struct in6pcb *);
  69 struct secpolicy * ipsec6_check_policy(struct mbuf *,
  70                                 const struct socket *, int, int*,int*);
  71 int ipsec6_in_reject (struct mbuf *, struct in6pcb *);
  72 /*
  73  * KAME ipsec6_in_reject_so(struct mbuf*, struct so)  compatibility shim
  74  */
  75 #define ipsec6_in_reject_so(m, _so) \
  76   ipsec6_in_reject(m, ((_so) == NULL? NULL : sotoin6pcb(_so)))
  77
  78 struct tcp6cb;
  79
  80 size_t ipsec6_hdrsiz (struct mbuf *, u_int, struct in6pcb *);
  81 size_t ipsec6_hdrsiz_tcp (struct tcpcb*);
  82
  83 struct ip6_hdr;
  84 const char *ipsec6_logpacketstr (struct ip6_hdr *, u_int32_t);
  85
  86 #ifdef __NetBSD__
  87 /* NetBSD protosw ctlin entrypoint */
  88 void * esp6_ctlinput(int, const struct sockaddr *, void *);
  89 void * ah6_ctlinput(int, const struct sockaddr *, void *);
  90 #endif /* __NetBSD__ */
  91
  92 struct m_tag;
  93 int ipsec6_common_input(struct mbuf **, int *, int);
  94 int ipsec6_common_input_cb(struct mbuf *, struct secasvar *,
  95                                                                         int, int, struct m_tag *);
  96
  97 #ifdef __FreeBSD__
  98 /* FreeBSD protosw ctlin entrypoint */
  99 void esp6_ctlinput(int, struct sockaddr *, void *);
 100 #endif /* __FreeBSD__ */
 101
 102 int ipsec6_process_packet (struct mbuf*,struct ipsecrequest *);
 103 #endif /*_KERNEL*/
 104
 105 #endif /* !_NETIPSEC_IPSEC6_H_ */