iptun.h revision 2b24ab6b3865caeede9eeb9db6b83e1d89dcd1ea
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _INET_IPTUN_H
#define _INET_IPTUN_H
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/dld_ioc.h>
#include <netinet/in.h>
#include <netinet/ip6.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* from http://www.iana.org/assignments/ip-parameters
*/
#define IPTUN_DEFAULT_HOPLIMIT 64
/* from RFC 2473 */
#define IPTUN_DEFAULT_ENCAPLIMIT 4
#define IPTUN_CREATE IPTUNIOC(1)
#define IPTUN_DELETE IPTUNIOC(2)
#define IPTUN_MODIFY IPTUNIOC(3)
#define IPTUN_INFO IPTUNIOC(4)
#define IPTUN_SET_6TO4RELAY IPTUNIOC(9)
#define IPTUN_GET_6TO4RELAY IPTUNIOC(10)
typedef enum {
IPTUN_TYPE_UNKNOWN = 0,
IPTUN_TYPE_IPV4,
IPTUN_TYPE_IPV6,
IPTUN_TYPE_6TO4
} iptun_type_t;
/*
* To maintain proper alignment of fields between 32bit user-land and 64bit
* kernel, all fields in iptun_kparams_t after itk_fields must be in
* descending order of size. Due to strict structure size checks done in the
* iptun ioctl processing, the structure size must be the same on 32 and 64
* bit. amd64 will pad the end of the structure to make the end 64bit
* aligned, so we must add explicit padding to make sure that it's similarly
* aligned when compiled in 32 bit mode.
*/
typedef struct iptun_kparams {
datalink_id_t iptun_kparam_linkid;
uint32_t iptun_kparam_flags;
struct sockaddr_storage iptun_kparam_laddr; /* local address */
struct sockaddr_storage iptun_kparam_raddr; /* remote address */
ipsec_req_t iptun_kparam_secinfo;
iptun_type_t iptun_kparam_type;
uint32_t _iptun_kparam_padding;
} iptun_kparams_t;
/* itk_flags */
#define IPTUN_KPARAM_TYPE 0x00000001 /* itk_type is set */
#define IPTUN_KPARAM_LADDR 0x00000002 /* itk_laddr is set */
#define IPTUN_KPARAM_RADDR 0x00000004 /* itk_raddr is set */
#define IPTUN_KPARAM_SECINFO 0x00000008 /* itk_secinfo is set */
#define IPTUN_KPARAM_IMPLICIT 0x00000010 /* implicitly created IP tunnel */
#define IPTUN_KPARAM_IPSECPOL 0x00000020 /* ipsecconf(1M) policy present */
#ifdef __cplusplus
}
#endif
#endif /* _INET_IPTUN_H */