source: rtems-libbsd/ipsec-tools/src/racoon/nattraversal.h @ ff36f5e

5-freebsd-12
Last change on this file since ff36f5e was ff36f5e, checked in by Christian Mauderer <christian.mauderer@…>, on May 30, 2018 at 12:27:35 PM

Import ipsec-tools 0.8.2.

Import unchanged ipsec-tools sources in the release version 0.8.2. The
homepage of ipsec-tools is http://ipsec-tools.sourceforge.net/. The
sources can be obtained from there.

  • Property mode set to 100644
File size: 3.6 KB
Line 
1/*      $NetBSD: nattraversal.h,v 1.7 2010/09/22 07:34:51 vanhu Exp $   */
2
3/*
4 * Copyright (C) 2004 SuSE Linux AG, Nuernberg, Germany.
5 * Contributed by: Michal Ludvig <mludvig@suse.cz>, SUSE Labs
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef _NATTRAVERSAL_H
34#define _NATTRAVERSAL_H
35
36#include "vendorid.h"
37
38#define NAT_ANNOUNCED           (1L<<0)
39#define NAT_DETECTED_ME         (1L<<1)
40#define NAT_DETECTED_PEER       (1L<<2)
41#define NAT_PORTS_CHANGED       (1L<<3)
42#define NAT_KA_QUEUED           (1L<<4)
43#define NAT_ADD_NON_ESP_MARKER  (1L<<5)
44
45#define NATT_AVAILABLE(_ph1)    ((_ph1)->natt_flags & NAT_ANNOUNCED)
46
47#define NAT_DETECTED    (NAT_DETECTED_ME | NAT_DETECTED_PEER)
48
49#define NON_ESP_MARKER_LEN      sizeof(u_int32_t)
50#define NON_ESP_MARKER_USE(_ph1)        ((_ph1)->natt_flags & NAT_ADD_NON_ESP_MARKER)
51
52/* These are the values from parsing "remote {}"
53   block of the config file. */
54#define NATT_OFF        FLASE   /* = 0 */
55#define NATT_ON         TRUE    /* = 1 */
56#define NATT_FORCE      2
57
58struct ph1natt_options {
59  int           version;
60  u_int16_t     float_port;
61  u_int16_t     mode_udp_tunnel;
62  u_int16_t     mode_udp_transport;
63  u_int16_t     encaps_type; /* ESPINUDP / ESPINUDP_NON_IKE */
64  u_int16_t     mode_udp_diff;
65  u_int16_t     payload_nat_d;
66  u_int16_t     payload_nat_oa;
67};
68
69struct ph2natt {
70  u_int8_t      type;
71  u_int16_t     sport;
72  u_int16_t     dport;
73  struct sockaddr       *oa;
74  u_int16_t     frag;
75};
76
77int natt_vendorid (int vid);
78vchar_t *natt_hash_addr (struct ph1handle *iph1, struct sockaddr *addr);
79int natt_compare_addr_hash (struct ph1handle *iph1, vchar_t *natd_received, int natd_seq);
80int natt_udp_encap (int encmode);
81int natt_fill_options (struct ph1natt_options *opts, int version);
82void natt_float_ports (struct ph1handle *iph1);
83void natt_handle_vendorid (struct ph1handle *iph1, int vid_numeric);
84
85
86struct payload_list *
87isakmp_plist_append_natt_vids (struct payload_list *plist, vchar_t *vid_natt[MAX_NATT_VID_COUNT]);
88
89
90/* NAT keepalive functions */
91void natt_keepalive_init (void);
92int natt_keepalive_add (struct sockaddr *src, struct sockaddr *dst);
93int natt_keepalive_add_ph1 (struct ph1handle *iph1);
94void natt_keepalive_remove (struct sockaddr *src, struct sockaddr *dst);
95
96/* Walk through all rmconfigs and tell if NAT-T is enabled in at least one. */
97int natt_enabled_in_rmconf (void);
98
99#endif /* _NATTRAVERSAL_H */
Note: See TracBrowser for help on using the repository browser.