1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _INET_IPTUN_H 27 #define _INET_IPTUN_H 28 29 #include <sys/socket.h> 30 #include <sys/types.h> 31 #include <sys/dld_ioc.h> 32 #include <netinet/in.h> 33 #include <netinet/ip6.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* 40 * from http://www.iana.org/assignments/ip-parameters 41 */ 42 #define IPTUN_DEFAULT_HOPLIMIT 64 43 /* from RFC 2473 */ 44 #define IPTUN_DEFAULT_ENCAPLIMIT 4 45 46 #define IPTUN_CREATE IPTUNIOC(1) 47 #define IPTUN_DELETE IPTUNIOC(2) 48 #define IPTUN_MODIFY IPTUNIOC(3) 49 #define IPTUN_INFO IPTUNIOC(4) 50 #define IPTUN_SET_6TO4RELAY IPTUNIOC(9) 51 #define IPTUN_GET_6TO4RELAY IPTUNIOC(10) 52 53 typedef enum { 54 IPTUN_TYPE_UNKNOWN = 0, 55 IPTUN_TYPE_IPV4, 56 IPTUN_TYPE_IPV6, 57 IPTUN_TYPE_6TO4 58 } iptun_type_t; 59 60 /* 61 * To maintain proper alignment of fields between 32bit user-land and 64bit 62 * kernel, all fields in iptun_kparams_t after itk_fields must be in 63 * descending order of size. Due to strict structure size checks done in the 64 * iptun ioctl processing, the structure size must be the same on 32 and 64 65 * bit. amd64 will pad the end of the structure to make the end 64bit 66 * aligned, so we must add explicit padding to make sure that it's similarly 67 * aligned when compiled in 32 bit mode. 68 */ 69 typedef struct iptun_kparams { 70 datalink_id_t iptun_kparam_linkid; 71 uint32_t iptun_kparam_flags; 72 struct sockaddr_storage iptun_kparam_laddr; /* local address */ 73 struct sockaddr_storage iptun_kparam_raddr; /* remote address */ 74 ipsec_req_t iptun_kparam_secinfo; 75 iptun_type_t iptun_kparam_type; 76 uint32_t _iptun_kparam_padding; 77 } iptun_kparams_t; 78 79 /* itk_flags */ 80 #define IPTUN_KPARAM_TYPE 0x00000001 /* itk_type is set */ 81 #define IPTUN_KPARAM_LADDR 0x00000002 /* itk_laddr is set */ 82 #define IPTUN_KPARAM_RADDR 0x00000004 /* itk_raddr is set */ 83 #define IPTUN_KPARAM_SECINFO 0x00000008 /* itk_secinfo is set */ 84 #define IPTUN_KPARAM_IMPLICIT 0x00000010 /* implicitly created IP tunnel */ 85 #define IPTUN_KPARAM_IPSECPOL 0x00000020 /* ipsecconf(8) policy present */ 86 87 #ifdef __cplusplus 88 } 89 #endif 90 91 #endif /* _INET_IPTUN_H */ 92