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Annotation of embedaddon/ipsec-tools/src/racoon/nattraversal.h, revision 1.1

1.1     ! misho       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: 
        !            58: struct 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: 
        !            69: struct 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: 
        !            77: int natt_vendorid (int vid);
        !            78: vchar_t *natt_hash_addr (struct ph1handle *iph1, struct sockaddr *addr);
        !            79: int natt_compare_addr_hash (struct ph1handle *iph1, vchar_t *natd_received, int natd_seq);
        !            80: int natt_udp_encap (int encmode);
        !            81: int natt_fill_options (struct ph1natt_options *opts, int version);
        !            82: void natt_float_ports (struct ph1handle *iph1);
        !            83: void natt_handle_vendorid (struct ph1handle *iph1, int vid_numeric);
        !            84: 
        !            85: 
        !            86: struct payload_list *
        !            87: isakmp_plist_append_natt_vids (struct payload_list *plist, vchar_t *vid_natt[MAX_NATT_VID_COUNT]);
        !            88: 
        !            89: 
        !            90: /* NAT keepalive functions */
        !            91: void natt_keepalive_init (void);
        !            92: int natt_keepalive_add (struct sockaddr *src, struct sockaddr *dst);
        !            93: int natt_keepalive_add_ph1 (struct ph1handle *iph1);
        !            94: void 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. */
        !            97: int natt_enabled_in_rmconf (void);
        !            98: 
        !            99: #endif /* _NATTRAVERSAL_H */