ipsec-tools/racoon/isakmp_frag.h

   1 /*      $NetBSD: isakmp_frag.h,v 1.5 2006/09/18 20:32:40 manu Exp $     */
   2
   3 /*      Id: isakmp_frag.h,v 1.3 2005/04/09 16:25:24 manubsd Exp */
   4
   5 /*
   6  * Copyright (C) 2004 Emmanuel Dreyfus
   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 _ISAKMP_FRAG_H
  35 #define _ISAKMP_FRAG_H
  36
  37 /* These are the values from parsing "remote {}"
  38    block of the config file. */
  39 #define ISAKMP_FRAG_OFF         FLASE   /* = 0 */
  40 #define ISAKMP_FRAG_ON          TRUE    /* = 1 */
  41 #define ISAKMP_FRAG_FORCE       2
  42
  43 /* IKE fragmentation capabilities */
  44 #define VENDORID_FRAG_IDENT     0x80000000
  45 #define VENDORID_FRAG_BASE      0x40000000
  46 #define VENDORID_FRAG_AGG       0x80000000
  47
  48 #define ISAKMP_FRAG_MAXLEN 1280 // TODO: make configurable (for now, use 1280 to make enough room for typical overhead)
  49
  50 #define FRAG_PUT_NON_ESP_MARKER         1
  51
  52 struct isakmp_frag_item {
  53         int     frag_num;
  54         int     frag_last;
  55         u_int16_t frag_id;
  56         struct isakmp_frag_item *frag_next;
  57         vchar_t *frag_packet;
  58 };
  59
  60 int isakmp_sendfrags(struct ph1handle *, vchar_t *);
  61 unsigned int vendorid_frag_cap(struct isakmp_gen *);
  62 int isakmp_frag_extract(struct ph1handle *, vchar_t *);
  63 vchar_t *isakmp_frag_reassembly(struct ph1handle *);
  64 vchar_t *isakmp_frag_addcap(vchar_t *, int);
  65 int sendfragsfromto(int s, vchar_t *, struct sockaddr *, struct sockaddr *, int, u_int32_t);
  66
  67 #endif /* _ISAKMP_FRAG_H */