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#include "racoon_types.h"
38
39/* These are the values from parsing "remote {}"
40   block of the config file. */
41#define ISAKMP_FRAG_OFF		FALSE   /* = 0 */
42#define ISAKMP_FRAG_ON		TRUE    /* = 1 */
43#define ISAKMP_FRAG_FORCE	2
44
45/* IKE fragmentation capabilities */
46#define VENDORID_FRAG_IDENT 	0x80000000
47#define VENDORID_FRAG_BASE 	0x40000000
48#define VENDORID_FRAG_AGG 	0x80000000
49
50#define ISAKMP_FRAG_MAXLEN 1280 // TODO: make configurable (for now, use 1280 to make enough room for typical overhead)
51
52#define FRAG_PUT_NON_ESP_MARKER		1
53
54struct isakmp_frag_item {
55	int	frag_num;
56	int	frag_last;
57	u_int16_t frag_id;
58	struct isakmp_frag_item *frag_next;
59	vchar_t *frag_packet;
60};
61
62int isakmp_sendfrags (phase1_handle_t *, vchar_t *);
63unsigned int vendorid_frag_cap (struct isakmp_gen *);
64int isakmp_frag_extract (phase1_handle_t *, vchar_t *);
65vchar_t *isakmp_frag_reassembly (phase1_handle_t *);
66vchar_t *isakmp_frag_addcap (vchar_t *, int);
67int sendfragsfromto (int s, vchar_t *, struct sockaddr_storage *, struct sockaddr_storage *, int, u_int32_t);
68
69#endif /* _ISAKMP_FRAG_H */
70