[apple/xnu.git] / bsd / net / pfkeyv2.h

/*
 * Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*	$KAME: pfkeyv2.h,v 1.10 2000/03/22 07:04:20 sakane Exp $	*/

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * This file has been derived rfc 2367,
 * And added some flags of SADB_KEY_FLAGS_ as SADB_X_EXT_.
 *	sakane@ydc.co.jp
 */

#ifndef _NET_PFKEYV2_H_
#define _NET_PFKEYV2_H_
#include <sys/appleapiopts.h>
#include <net/if.h>

/*
This file defines structures and symbols for the PF_KEY Version 2
key management interface. It was written at the U.S. Naval Research
Laboratory. This file is in the public domain. The authors ask that
you leave this credit intact on any copies of this file.
*/
#ifndef __PFKEY_V2_H
#define __PFKEY_V2_H 1

#define PF_KEY_V2 2
#define PFKEYV2_REVISION        199806L

#define SADB_RESERVED    0
#define SADB_GETSPI      1
#define SADB_UPDATE      2
#define SADB_ADD         3
#define SADB_DELETE      4
#define SADB_GET         5
#define SADB_ACQUIRE     6
#define SADB_REGISTER    7
#define SADB_EXPIRE      8
#define SADB_FLUSH       9
#define SADB_DUMP        10
#define SADB_X_PROMISC   11
#define SADB_X_PCHANGE   12

#define SADB_X_SPDUPDATE  13
#define SADB_X_SPDADD     14
#define SADB_X_SPDDELETE  15	/* by policy index */
#define SADB_X_SPDGET     16
#define SADB_X_SPDACQUIRE 17
#define SADB_X_SPDDUMP    18
#define SADB_X_SPDFLUSH   19
#define SADB_X_SPDSETIDX  20
#define SADB_X_SPDEXPIRE  21
#define SADB_X_SPDDELETE2 22	/* by policy id */
#define SADB_GETSASTAT    23
#define SADB_X_SPDENABLE  24	/* by policy id */
#define SADB_X_SPDDISABLE 25	/* by policy id */
#define SADB_MAX          25

struct sadb_msg {
  u_int8_t sadb_msg_version;
  u_int8_t sadb_msg_type;
  u_int8_t sadb_msg_errno;
  u_int8_t sadb_msg_satype;
  u_int16_t sadb_msg_len;
  u_int16_t sadb_msg_reserved;
  u_int32_t sadb_msg_seq;
  u_int32_t sadb_msg_pid;
};

struct sadb_ext {
  u_int16_t sadb_ext_len;
  u_int16_t sadb_ext_type;
};

struct sadb_sa {
  u_int16_t sadb_sa_len;
  u_int16_t sadb_sa_exttype;
  u_int32_t sadb_sa_spi;
  u_int8_t sadb_sa_replay;
  u_int8_t sadb_sa_state;
  u_int8_t sadb_sa_auth;
  u_int8_t sadb_sa_encrypt;
  u_int32_t sadb_sa_flags;
};

#ifdef PRIVATE
struct sadb_sa_2 {
	struct sadb_sa	sa;
	u_int16_t		sadb_sa_natt_port;
	union {
		u_int16_t		sadb_reserved0;
		u_int16_t		sadb_sa_natt_interval;
	};
	u_int32_t		sadb_reserved1;
};
#endif /* PRIVATE */

struct sadb_lifetime {
  u_int16_t sadb_lifetime_len;
  u_int16_t sadb_lifetime_exttype;
  u_int32_t sadb_lifetime_allocations;
  u_int64_t sadb_lifetime_bytes;
  u_int64_t sadb_lifetime_addtime;
  u_int64_t sadb_lifetime_usetime;
};

struct sadb_address {
  u_int16_t sadb_address_len;
  u_int16_t sadb_address_exttype;
  u_int8_t sadb_address_proto;
  u_int8_t sadb_address_prefixlen;
  u_int16_t sadb_address_reserved;
};

struct sadb_key {
  u_int16_t sadb_key_len;
  u_int16_t sadb_key_exttype;
  u_int16_t sadb_key_bits;
  u_int16_t sadb_key_reserved;
};

struct sadb_ident {
  u_int16_t sadb_ident_len;
  u_int16_t sadb_ident_exttype;
  u_int16_t sadb_ident_type;
  u_int16_t sadb_ident_reserved;
  u_int64_t sadb_ident_id;
};

struct sadb_sens {
  u_int16_t sadb_sens_len;
  u_int16_t sadb_sens_exttype;
  u_int32_t sadb_sens_dpd;
  u_int8_t sadb_sens_sens_level;
  u_int8_t sadb_sens_sens_len;
  u_int8_t sadb_sens_integ_level;
  u_int8_t sadb_sens_integ_len;
  u_int32_t sadb_sens_reserved;
};

struct sadb_prop {
  u_int16_t sadb_prop_len;
  u_int16_t sadb_prop_exttype;
  u_int8_t sadb_prop_replay;
  u_int8_t sadb_prop_reserved[3];
};

struct sadb_comb {
  u_int8_t sadb_comb_auth;
  u_int8_t sadb_comb_encrypt;
  u_int16_t sadb_comb_flags;
  u_int16_t sadb_comb_auth_minbits;
  u_int16_t sadb_comb_auth_maxbits;
  u_int16_t sadb_comb_encrypt_minbits;
  u_int16_t sadb_comb_encrypt_maxbits;
  u_int32_t sadb_comb_reserved;
  u_int32_t sadb_comb_soft_allocations;
  u_int32_t sadb_comb_hard_allocations;
  u_int64_t sadb_comb_soft_bytes;
  u_int64_t sadb_comb_hard_bytes;
  u_int64_t sadb_comb_soft_addtime;
  u_int64_t sadb_comb_hard_addtime;
  u_int64_t sadb_comb_soft_usetime;
  u_int64_t sadb_comb_hard_usetime;
};

struct sadb_supported {
  u_int16_t sadb_supported_len;
  u_int16_t sadb_supported_exttype;
  u_int32_t sadb_supported_reserved;
};

struct sadb_alg {
  u_int8_t sadb_alg_id;
  u_int8_t sadb_alg_ivlen;
  u_int16_t sadb_alg_minbits;
  u_int16_t sadb_alg_maxbits;
  u_int16_t sadb_alg_reserved;
};

struct sadb_spirange {
  u_int16_t sadb_spirange_len;
  u_int16_t sadb_spirange_exttype;
  u_int32_t sadb_spirange_min;
  u_int32_t sadb_spirange_max;
  u_int32_t sadb_spirange_reserved;
};

struct sadb_x_kmprivate {
  u_int16_t sadb_x_kmprivate_len;
  u_int16_t sadb_x_kmprivate_exttype;
  u_int32_t sadb_x_kmprivate_reserved;
};

/*
 * XXX Additional SA Extension.
 * mode: tunnel or transport
 * reqid: to make SA unique nevertheless the address pair of SA are same.
 *        Mainly it's for VPN.
 */
struct sadb_x_sa2 {
  u_int16_t sadb_x_sa2_len;
  u_int16_t sadb_x_sa2_exttype;
  u_int8_t sadb_x_sa2_mode;
  union {
    u_int8_t sadb_x_sa2_reserved1;
#ifdef PRIVATE
    u_int8_t sadb_x_sa2_alwaysexpire;
#endif
  };
  union {
    u_int16_t sadb_x_sa2_reserved2;
#ifdef PRIVATE
    u_int16_t sadb_x_sa2_flags;
#endif
  };
  u_int32_t sadb_x_sa2_sequence;
  u_int32_t sadb_x_sa2_reqid;
};

/* XXX Policy Extension */
/* sizeof(struct sadb_x_policy) == 16 */
struct sadb_x_policy {
  u_int16_t sadb_x_policy_len;
  u_int16_t sadb_x_policy_exttype;
  u_int16_t sadb_x_policy_type;		/* See policy type of ipsec.h */
  u_int8_t sadb_x_policy_dir;		/* direction, see ipsec.h */
  u_int8_t sadb_x_policy_reserved;
  u_int32_t sadb_x_policy_id;
  u_int32_t sadb_x_policy_reserved2;
};
/*
 * When policy_type == IPSEC, it is followed by some of
 * the ipsec policy request.
 * [total length of ipsec policy requests]
 *	= (sadb_x_policy_len * sizeof(uint64_t) - sizeof(struct sadb_x_policy))
 */
#ifdef PRIVATE
/* IPSec Interface Extension:
 * IPSec interface can be specified alone, or all three
 * of internal, outgoing, and IPSec interfaces must be
 * specified.
 */
struct sadb_x_ipsecif {
	u_int16_t sadb_x_ipsecif_len;
	u_int16_t sadb_x_ipsecif_exttype;
	char sadb_x_ipsecif_internal_if[IFXNAMSIZ]; /* Steal packets from this interface */
	char sadb_x_ipsecif_outgoing_if[IFXNAMSIZ]; /* Send packets out on this interface */
	char sadb_x_ipsecif_ipsec_if[IFXNAMSIZ];  /* Direct packets through ipsec interface */
	u_int16_t sadb_x_ipsecif_init_disabled; /* 0 or 1, flag to ignore policy */
	u_int16_t reserved;
};
#endif
/* XXX IPsec Policy Request Extension */
/*
 * This structure is aligned 8 bytes.
 */
struct sadb_x_ipsecrequest {
  u_int16_t sadb_x_ipsecrequest_len;	/* structure length aligned to 8 bytes.
					 * This value is true length of bytes.
					 * Not in units of 64 bits. */
  u_int16_t sadb_x_ipsecrequest_proto;	/* See ipsec.h */
  u_int8_t sadb_x_ipsecrequest_mode;	/* See IPSEC_MODE_XX in ipsec.h. */
  u_int8_t sadb_x_ipsecrequest_level;	/* See IPSEC_LEVEL_XX in ipsec.h */
  u_int16_t sadb_x_ipsecrequest_reqid;	/* See ipsec.h */

  /*
   * followed by source IP address of SA, and immediately followed by
   * destination IP address of SA.  These encoded into two of sockaddr
   * structure without any padding.  Must set each sa_len exactly.
   * Each of length of the sockaddr structure are not aligned to 64bits,
   * but sum of x_request and addresses is aligned to 64bits.
   */
};

struct sadb_session_id {
        u_int16_t            sadb_session_id_len;
        u_int16_t            sadb_session_id_exttype;
       /* [0] is an arbitrary handle that means something only for requester
        * [1] is a global session id for lookups in the kernel and racoon.
        */
        u_int64_t            sadb_session_id_v[2];
} __attribute__ ((aligned(8)));

struct sastat {
	u_int32_t            spi;		/* SPI Value, network byte order */
	u_int32_t            created;	        /* for lifetime */
	struct sadb_lifetime lft_c;	        /* CURRENT lifetime. */
}; // no need to align

struct sadb_sastat {
        u_int16_t            sadb_sastat_len;
        u_int16_t            sadb_sastat_exttype;
        u_int32_t            sadb_sastat_dir;
        u_int32_t            sadb_sastat_reserved;
        u_int32_t            sadb_sastat_list_len;
        /* list of struct sastat comes after */
} __attribute__ ((aligned(8)));

#define SADB_EXT_RESERVED             0
#define SADB_EXT_SA                   1
#define SADB_EXT_LIFETIME_CURRENT     2
#define SADB_EXT_LIFETIME_HARD        3
#define SADB_EXT_LIFETIME_SOFT        4
#define SADB_EXT_ADDRESS_SRC          5
#define SADB_EXT_ADDRESS_DST          6
#define SADB_EXT_ADDRESS_PROXY        7
#define SADB_EXT_KEY_AUTH             8
#define SADB_EXT_KEY_ENCRYPT          9
#define SADB_EXT_IDENTITY_SRC         10
#define SADB_EXT_IDENTITY_DST         11
#define SADB_EXT_SENSITIVITY          12
#define SADB_EXT_PROPOSAL             13
#define SADB_EXT_SUPPORTED_AUTH       14
#define SADB_EXT_SUPPORTED_ENCRYPT    15
#define SADB_EXT_SPIRANGE             16
#define SADB_X_EXT_KMPRIVATE          17
#define SADB_X_EXT_POLICY             18
#define SADB_X_EXT_SA2                19
#define SADB_EXT_SESSION_ID           20
#define SADB_EXT_SASTAT               21
#define SADB_X_EXT_IPSECIF            22
#define SADB_X_EXT_ADDR_RANGE_SRC_START 23
#define SADB_X_EXT_ADDR_RANGE_SRC_END   24
#define SADB_X_EXT_ADDR_RANGE_DST_START 25
#define SADB_X_EXT_ADDR_RANGE_DST_END   26
#define SADB_EXT_MAX                  26

#define SADB_SATYPE_UNSPEC	0
#define SADB_SATYPE_AH		2
#define SADB_SATYPE_ESP		3
#define SADB_SATYPE_RSVP	5
#define SADB_SATYPE_OSPFV2	6
#define SADB_SATYPE_RIPV2	7
#define SADB_SATYPE_MIP		8
#define SADB_X_SATYPE_IPCOMP	9
#define SADB_X_SATYPE_POLICY	10
#define SADB_SATYPE_MAX		11

#define SADB_SASTATE_LARVAL   0
#define SADB_SASTATE_MATURE   1
#define SADB_SASTATE_DYING    2
#define SADB_SASTATE_DEAD     3
#define SADB_SASTATE_MAX      3

#define SADB_SAFLAGS_PFS      1

/* RFC2367 numbers - meets RFC2407 */
#define SADB_AALG_NONE		0
#define SADB_AALG_MD5HMAC	1	/*2*/
#define SADB_AALG_SHA1HMAC	2	/*3*/
#define SADB_AALG_MAX		8
/* private allocations - based on RFC2407/IANA assignment */
#define SADB_X_AALG_SHA2_256	6	/*5*/
#define SADB_X_AALG_SHA2_384	7	/*6*/
#define SADB_X_AALG_SHA2_512	8	/*7*/
/* private allocations should use 249-255 (RFC2407) */
#define SADB_X_AALG_MD5		3	/*249*/	/* Keyed MD5 */
#define SADB_X_AALG_SHA		4	/*250*/	/* Keyed SHA */
#define SADB_X_AALG_NULL	5	/*251*/	/* null authentication */

/* RFC2367 numbers - meets RFC2407 */
#define SADB_EALG_NONE		0
#define SADB_EALG_DESCBC	1	/*2*/
#define SADB_EALG_3DESCBC	2	/*3*/
#define SADB_EALG_NULL		3	/*11*/
#define SADB_EALG_MAX		12
/* private allocations - based on RFC2407/IANA assignment */
#define SADB_X_EALG_CAST128CBC	5	/*6*/
#define SADB_X_EALG_BLOWFISHCBC	4	/*7*/
#define SADB_X_EALG_RIJNDAELCBC	12
#define SADB_X_EALG_AESCBC      12
#define SADB_X_EALG_AES		12
/* private allocations should use 249-255 (RFC2407) */

#if 1	/*nonstandard */
#define SADB_X_CALG_NONE	0
#define SADB_X_CALG_OUI		1
#define SADB_X_CALG_DEFLATE	2
#define SADB_X_CALG_LZS		3
#define SADB_X_CALG_MAX		4
#endif

#define SADB_IDENTTYPE_RESERVED   0
#define SADB_IDENTTYPE_PREFIX     1
#define SADB_IDENTTYPE_FQDN       2
#define SADB_IDENTTYPE_USERFQDN   3
#define SADB_X_IDENTTYPE_ADDR     4
#define SADB_IDENTTYPE_MAX        4

/* `flags' in sadb_sa structure holds followings */
#define SADB_X_EXT_NONE		0x0000	/* i.e. new format. */
#define SADB_X_EXT_OLD		0x0001	/* old format. */
#ifdef PRIVATE
#define SADB_X_EXT_NATT				0x0002	/* Use UDP encapsulation to traverse NAT */
#define SADB_X_EXT_NATT_KEEPALIVE	0x0004	/* Local node is behind NAT, send keepalives */
											/* Should only be set for outbound SAs */
#define SADB_X_EXT_NATT_MULTIPLEUSERS 0x0008	/* For use on VPN server - support multiple users 	*/

#endif /* PRIVATE */	

#define SADB_X_EXT_IV4B		0x0010	/* IV length of 4 bytes in use */
#define SADB_X_EXT_DERIV	0x0020	/* DES derived */
#define SADB_X_EXT_CYCSEQ	0x0040	/* allowing to cyclic sequence. */

	/* three of followings are exclusive flags each them */
#define SADB_X_EXT_PSEQ		0x0000	/* sequencial padding for ESP */
#define SADB_X_EXT_PRAND	0x0100	/* random padding for ESP */
#define SADB_X_EXT_PZERO	0x0200	/* zero padding for ESP */
#define SADB_X_EXT_PMASK	0x0300	/* mask for padding flag */

#ifdef PRIVATE
#define SADB_X_EXT_NATT_DETECTED_PEER 0x1000
#define SADB_X_EXT_ESP_KEEPALIVE      0x2000
#define SADB_X_EXT_PUNT_RX_KEEPALIVE  0x4000
#define SADB_X_EXT_NATT_KEEPALIVE_OFFLOAD  0x8000
#endif /* PRIVATE */	

#if 1
#define SADB_X_EXT_RAWCPI	0x0080	/* use well known CPI (IPComp) */
#endif

#define SADB_KEY_FLAGS_MAX	0x7fff

#ifdef PRIVATE
#define SADB_X_EXT_SA2_DELETE_ON_DETACH   0x0001
#endif

/* SPI size for PF_KEYv2 */
#define PFKEY_SPI_SIZE	sizeof(u_int32_t)

/* Identifier for menber of lifetime structure */
#define SADB_X_LIFETIME_ALLOCATIONS	0
#define SADB_X_LIFETIME_BYTES		1
#define SADB_X_LIFETIME_ADDTIME		2
#define SADB_X_LIFETIME_USETIME		3

/* The rate for SOFT lifetime against HARD one. */
#define PFKEY_SOFT_LIFETIME_RATE	80

/* Utilities */
#define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1)))
#define	PFKEY_EXTLEN(msg) \
	PFKEY_UNUNIT64(((struct sadb_ext *)(msg))->sadb_ext_len)
#define PFKEY_ADDR_PREFIX(ext) \
	(((struct sadb_address *)(ext))->sadb_address_prefixlen)
#define PFKEY_ADDR_PROTO(ext) \
	(((struct sadb_address *)(ext))->sadb_address_proto)
#define PFKEY_ADDR_SADDR(ext) \
	((struct sockaddr *)((caddr_t)(ext) + sizeof(struct sadb_address)))

/* in 64bits */
#define	PFKEY_UNUNIT64(a)	((a) << 3)
#define	PFKEY_UNIT64(a)		((a) >> 3)

#endif /* __PFKEY_V2_H */

#endif /* _NET_PFKEYV2_H_ */
Commit	Line	Data
1c79356b	1	/*
316670eb	2	* Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* $KAME: pfkeyv2.h,v 1.10 2000/03/22 07:04:20 sakane Exp $ */
	29
	30	/*
	31	* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
	32	* All rights reserved.
	33	*
	34	* Redistribution and use in source and binary forms, with or without
	35	* modification, are permitted provided that the following conditions
	36	* are met:
	37	* 1. Redistributions of source code must retain the above copyright
	38	* notice, this list of conditions and the following disclaimer.
	39	* 2. Redistributions in binary form must reproduce the above copyright
	40	* notice, this list of conditions and the following disclaimer in the
	41	* documentation and/or other materials provided with the distribution.
	42	* 3. Neither the name of the project nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*/
	58
1c79356b A	59	/*
	60	* This file has been derived rfc 2367,
	61	* And added some flags of SADB_KEY_FLAGS_ as SADB_X_EXT_.
	62	* sakane@ydc.co.jp
	63	*/
	64
	65	#ifndef _NET_PFKEYV2_H_
	66	#define _NET_PFKEYV2_H_
9bccf70c	67	#include <sys/appleapiopts.h>
39236c6e	68	#include <net/if.h>
1c79356b A	69
	70	/*
	71	This file defines structures and symbols for the PF_KEY Version 2
	72	key management interface. It was written at the U.S. Naval Research
	73	Laboratory. This file is in the public domain. The authors ask that
	74	you leave this credit intact on any copies of this file.
	75	*/
	76	#ifndef __PFKEY_V2_H
	77	#define __PFKEY_V2_H 1
	78
	79	#define PF_KEY_V2 2
	80	#define PFKEYV2_REVISION 199806L
	81
	82	#define SADB_RESERVED 0
	83	#define SADB_GETSPI 1
	84	#define SADB_UPDATE 2
	85	#define SADB_ADD 3
	86	#define SADB_DELETE 4
	87	#define SADB_GET 5
	88	#define SADB_ACQUIRE 6
	89	#define SADB_REGISTER 7
	90	#define SADB_EXPIRE 8
	91	#define SADB_FLUSH 9
	92	#define SADB_DUMP 10
	93	#define SADB_X_PROMISC 11
	94	#define SADB_X_PCHANGE 12
	95
	96	#define SADB_X_SPDUPDATE 13
	97	#define SADB_X_SPDADD 14
	98	#define SADB_X_SPDDELETE 15 /* by policy index */
	99	#define SADB_X_SPDGET 16
	100	#define SADB_X_SPDACQUIRE 17
	101	#define SADB_X_SPDDUMP 18
	102	#define SADB_X_SPDFLUSH 19
	103	#define SADB_X_SPDSETIDX 20
9bccf70c	104	#define SADB_X_SPDEXPIRE 21
1c79356b	105	#define SADB_X_SPDDELETE2 22 /* by policy id */
b0d623f7	106	#define SADB_GETSASTAT 23
39236c6e A	107	#define SADB_X_SPDENABLE 24 /* by policy id */
	108	#define SADB_X_SPDDISABLE 25 /* by policy id */
	109	#define SADB_MAX 25
1c79356b A	110
	111	struct sadb_msg {
	112	u_int8_t sadb_msg_version;
	113	u_int8_t sadb_msg_type;
	114	u_int8_t sadb_msg_errno;
	115	u_int8_t sadb_msg_satype;
	116	u_int16_t sadb_msg_len;
9bccf70c	117	u_int16_t sadb_msg_reserved;
1c79356b A	118	u_int32_t sadb_msg_seq;
1c79356b A	119	u_int32_t sadb_msg_pid;
1c79356b A	120	};
	121
	122	struct sadb_ext {
	123	u_int16_t sadb_ext_len;
	124	u_int16_t sadb_ext_type;
	125	};
	126
	127	struct sadb_sa {
	128	u_int16_t sadb_sa_len;
	129	u_int16_t sadb_sa_exttype;
	130	u_int32_t sadb_sa_spi;
	131	u_int8_t sadb_sa_replay;
	132	u_int8_t sadb_sa_state;
	133	u_int8_t sadb_sa_auth;
	134	u_int8_t sadb_sa_encrypt;
	135	u_int32_t sadb_sa_flags;
	136	};
	137
91447636	138	#ifdef PRIVATE
55e303ae A	139	struct sadb_sa_2 {
	140	struct sadb_sa sa;
	141	u_int16_t sadb_sa_natt_port;
fe8ab488 A	142	union {
	143	u_int16_t sadb_reserved0;
	144	u_int16_t sadb_sa_natt_interval;
	145	};
55e303ae A	146	u_int32_t sadb_reserved1;
55e303ae A	147	};
91447636	148	#endif /* PRIVATE */
55e303ae	149
1c79356b A	150	struct sadb_lifetime {
	151	u_int16_t sadb_lifetime_len;
	152	u_int16_t sadb_lifetime_exttype;
	153	u_int32_t sadb_lifetime_allocations;
	154	u_int64_t sadb_lifetime_bytes;
	155	u_int64_t sadb_lifetime_addtime;
	156	u_int64_t sadb_lifetime_usetime;
	157	};
	158
	159	struct sadb_address {
	160	u_int16_t sadb_address_len;
	161	u_int16_t sadb_address_exttype;
	162	u_int8_t sadb_address_proto;
	163	u_int8_t sadb_address_prefixlen;
	164	u_int16_t sadb_address_reserved;
	165	};
	166
	167	struct sadb_key {
	168	u_int16_t sadb_key_len;
	169	u_int16_t sadb_key_exttype;
	170	u_int16_t sadb_key_bits;
	171	u_int16_t sadb_key_reserved;
	172	};
	173
	174	struct sadb_ident {
	175	u_int16_t sadb_ident_len;
	176	u_int16_t sadb_ident_exttype;
	177	u_int16_t sadb_ident_type;
	178	u_int16_t sadb_ident_reserved;
	179	u_int64_t sadb_ident_id;
	180	};
1c79356b A	181
	182	struct sadb_sens {
	183	u_int16_t sadb_sens_len;
	184	u_int16_t sadb_sens_exttype;
	185	u_int32_t sadb_sens_dpd;
	186	u_int8_t sadb_sens_sens_level;
	187	u_int8_t sadb_sens_sens_len;
	188	u_int8_t sadb_sens_integ_level;
	189	u_int8_t sadb_sens_integ_len;
	190	u_int32_t sadb_sens_reserved;
	191	};
	192
	193	struct sadb_prop {
	194	u_int16_t sadb_prop_len;
	195	u_int16_t sadb_prop_exttype;
	196	u_int8_t sadb_prop_replay;
	197	u_int8_t sadb_prop_reserved[3];
	198	};
	199
	200	struct sadb_comb {
	201	u_int8_t sadb_comb_auth;
	202	u_int8_t sadb_comb_encrypt;
	203	u_int16_t sadb_comb_flags;
	204	u_int16_t sadb_comb_auth_minbits;
	205	u_int16_t sadb_comb_auth_maxbits;
	206	u_int16_t sadb_comb_encrypt_minbits;
	207	u_int16_t sadb_comb_encrypt_maxbits;
	208	u_int32_t sadb_comb_reserved;
	209	u_int32_t sadb_comb_soft_allocations;
	210	u_int32_t sadb_comb_hard_allocations;
	211	u_int64_t sadb_comb_soft_bytes;
	212	u_int64_t sadb_comb_hard_bytes;
	213	u_int64_t sadb_comb_soft_addtime;
	214	u_int64_t sadb_comb_hard_addtime;
	215	u_int64_t sadb_comb_soft_usetime;
	216	u_int64_t sadb_comb_hard_usetime;
	217	};
	218
	219	struct sadb_supported {
	220	u_int16_t sadb_supported_len;
	221	u_int16_t sadb_supported_exttype;
	222	u_int32_t sadb_supported_reserved;
	223	};
	224
	225	struct sadb_alg {
	226	u_int8_t sadb_alg_id;
	227	u_int8_t sadb_alg_ivlen;
	228	u_int16_t sadb_alg_minbits;
	229	u_int16_t sadb_alg_maxbits;
	230	u_int16_t sadb_alg_reserved;
	231	};
	232
	233	struct sadb_spirange {
	234	u_int16_t sadb_spirange_len;
	235	u_int16_t sadb_spirange_exttype;
	236	u_int32_t sadb_spirange_min;
	237	u_int32_t sadb_spirange_max;
	238	u_int32_t sadb_spirange_reserved;
	239	};
	240
	241	struct sadb_x_kmprivate {
	242	u_int16_t sadb_x_kmprivate_len;
	243	u_int16_t sadb_x_kmprivate_exttype;
	244	u_int32_t sadb_x_kmprivate_reserved;
245	};
246
9bccf70c A	247	/*
	248	* XXX Additional SA Extension.
	249	* mode: tunnel or transport
	250	* reqid: to make SA unique nevertheless the address pair of SA are same.
	251	* Mainly it's for VPN.
	252	*/
	253	struct sadb_x_sa2 {
	254	u_int16_t sadb_x_sa2_len;
	255	u_int16_t sadb_x_sa2_exttype;
	256	u_int8_t sadb_x_sa2_mode;
39236c6e A	257	union {
	258	u_int8_t sadb_x_sa2_reserved1;
	259	#ifdef PRIVATE
	260	u_int8_t sadb_x_sa2_alwaysexpire;
	261	#endif
	262	};
fe8ab488 A	263	union {
	264	u_int16_t sadb_x_sa2_reserved2;
	265	#ifdef PRIVATE
	266	u_int16_t sadb_x_sa2_flags;
	267	#endif
	268	};
55e303ae	269	u_int32_t sadb_x_sa2_sequence;
9bccf70c A	270	u_int32_t sadb_x_sa2_reqid;
	271	};
	272
1c79356b	273	/* XXX Policy Extension */
9bccf70c	274	/* sizeof(struct sadb_x_policy) == 16 */
1c79356b A	275	struct sadb_x_policy {
	276	u_int16_t sadb_x_policy_len;
	277	u_int16_t sadb_x_policy_exttype;
	278	u_int16_t sadb_x_policy_type; /* See policy type of ipsec.h */
	279	u_int8_t sadb_x_policy_dir; /* direction, see ipsec.h */
	280	u_int8_t sadb_x_policy_reserved;
	281	u_int32_t sadb_x_policy_id;
	282	u_int32_t sadb_x_policy_reserved2;
	283	};
	284	/*
	285	* When policy_type == IPSEC, it is followed by some of
	286	* the ipsec policy request.
	287	* [total length of ipsec policy requests]
	288	* = (sadb_x_policy_len * sizeof(uint64_t) - sizeof(struct sadb_x_policy))
	289	*/
39236c6e A	290	#ifdef PRIVATE
	291	/* IPSec Interface Extension:
	292	* IPSec interface can be specified alone, or all three
	293	* of internal, outgoing, and IPSec interfaces must be
	294	* specified.
	295	*/
	296	struct sadb_x_ipsecif {
	297	u_int16_t sadb_x_ipsecif_len;
	298	u_int16_t sadb_x_ipsecif_exttype;
	299	char sadb_x_ipsecif_internal_if[IFXNAMSIZ]; /* Steal packets from this interface */
	300	char sadb_x_ipsecif_outgoing_if[IFXNAMSIZ]; /* Send packets out on this interface */
	301	char sadb_x_ipsecif_ipsec_if[IFXNAMSIZ]; /* Direct packets through ipsec interface */
	302	u_int16_t sadb_x_ipsecif_init_disabled; /* 0 or 1, flag to ignore policy */
	303	u_int16_t reserved;
	304	};
	305	#endif
1c79356b A	306	/* XXX IPsec Policy Request Extension */
	307	/*
	308	* This structure is aligned 8 bytes.
	309	*/
	310	struct sadb_x_ipsecrequest {
	311	u_int16_t sadb_x_ipsecrequest_len; /* structure length aligned to 8 bytes.
	312	* This value is true length of bytes.
	313	* Not in units of 64 bits. */
	314	u_int16_t sadb_x_ipsecrequest_proto; /* See ipsec.h */
	315	u_int8_t sadb_x_ipsecrequest_mode; /* See IPSEC_MODE_XX in ipsec.h. */
	316	u_int8_t sadb_x_ipsecrequest_level; /* See IPSEC_LEVEL_XX in ipsec.h */
	317	u_int16_t sadb_x_ipsecrequest_reqid; /* See ipsec.h */
	318
	319	/*
	320	* followed by source IP address of SA, and immediately followed by
	321	* destination IP address of SA. These encoded into two of sockaddr
	322	* structure without any padding. Must set each sa_len exactly.
	323	* Each of length of the sockaddr structure are not aligned to 64bits,
	324	* but sum of x_request and addresses is aligned to 64bits.
	325	*/
	326	};
	327
b0d623f7 A	328	struct sadb_session_id {
	329	u_int16_t sadb_session_id_len;
	330	u_int16_t sadb_session_id_exttype;
	331	/* [0] is an arbitrary handle that means something only for requester
	332	* [1] is a global session id for lookups in the kernel and racoon.
	333	*/
	334	u_int64_t sadb_session_id_v[2];
	335	} __attribute__ ((aligned(8)));
	336
	337	struct sastat {
	338	u_int32_t spi; /* SPI Value, network byte order */
	339	u_int32_t created; /* for lifetime */
	340	struct sadb_lifetime lft_c; /* CURRENT lifetime. */
	341	}; // no need to align
	342
	343	struct sadb_sastat {
	344	u_int16_t sadb_sastat_len;
	345	u_int16_t sadb_sastat_exttype;
	346	u_int32_t sadb_sastat_dir;
	347	u_int32_t sadb_sastat_reserved;
	348	u_int32_t sadb_sastat_list_len;
	349	/* list of struct sastat comes after */
	350	} __attribute__ ((aligned(8)));
	351
1c79356b A	352	#define SADB_EXT_RESERVED 0
	353	#define SADB_EXT_SA 1
	354	#define SADB_EXT_LIFETIME_CURRENT 2
	355	#define SADB_EXT_LIFETIME_HARD 3
	356	#define SADB_EXT_LIFETIME_SOFT 4
	357	#define SADB_EXT_ADDRESS_SRC 5
	358	#define SADB_EXT_ADDRESS_DST 6
	359	#define SADB_EXT_ADDRESS_PROXY 7
	360	#define SADB_EXT_KEY_AUTH 8
	361	#define SADB_EXT_KEY_ENCRYPT 9
	362	#define SADB_EXT_IDENTITY_SRC 10
	363	#define SADB_EXT_IDENTITY_DST 11
	364	#define SADB_EXT_SENSITIVITY 12
	365	#define SADB_EXT_PROPOSAL 13
	366	#define SADB_EXT_SUPPORTED_AUTH 14
	367	#define SADB_EXT_SUPPORTED_ENCRYPT 15
	368	#define SADB_EXT_SPIRANGE 16
	369	#define SADB_X_EXT_KMPRIVATE 17
	370	#define SADB_X_EXT_POLICY 18
9bccf70c	371	#define SADB_X_EXT_SA2 19
b0d623f7 A	372	#define SADB_EXT_SESSION_ID 20
b0d623f7 A	373	#define SADB_EXT_SASTAT 21
39236c6e A	374	#define SADB_X_EXT_IPSECIF 22
	375	#define SADB_X_EXT_ADDR_RANGE_SRC_START 23
	376	#define SADB_X_EXT_ADDR_RANGE_SRC_END 24
	377	#define SADB_X_EXT_ADDR_RANGE_DST_START 25
	378	#define SADB_X_EXT_ADDR_RANGE_DST_END 26
	379	#define SADB_EXT_MAX 26
1c79356b A	380
	381	#define SADB_SATYPE_UNSPEC 0
	382	#define SADB_SATYPE_AH 2
	383	#define SADB_SATYPE_ESP 3
	384	#define SADB_SATYPE_RSVP 5
	385	#define SADB_SATYPE_OSPFV2 6
	386	#define SADB_SATYPE_RIPV2 7
	387	#define SADB_SATYPE_MIP 8
	388	#define SADB_X_SATYPE_IPCOMP 9
	389	#define SADB_X_SATYPE_POLICY 10
	390	#define SADB_SATYPE_MAX 11
	391
	392	#define SADB_SASTATE_LARVAL 0
	393	#define SADB_SASTATE_MATURE 1
	394	#define SADB_SASTATE_DYING 2
	395	#define SADB_SASTATE_DEAD 3
	396	#define SADB_SASTATE_MAX 3
	397
	398	#define SADB_SAFLAGS_PFS 1
	399
9bccf70c A	400	/* RFC2367 numbers - meets RFC2407 */
	401	#define SADB_AALG_NONE 0
	402	#define SADB_AALG_MD5HMAC 1 /2/
	403	#define SADB_AALG_SHA1HMAC 2 /3/
	404	#define SADB_AALG_MAX 8
	405	/* private allocations - based on RFC2407/IANA assignment */
	406	#define SADB_X_AALG_SHA2_256 6 /5/
	407	#define SADB_X_AALG_SHA2_384 7 /6/
	408	#define SADB_X_AALG_SHA2_512 8 /7/
	409	/* private allocations should use 249-255 (RFC2407) */
	410	#define SADB_X_AALG_MD5 3 /249/ /* Keyed MD5 */
	411	#define SADB_X_AALG_SHA 4 /250/ /* Keyed SHA */
	412	#define SADB_X_AALG_NULL 5 /251/ /* null authentication */
	413
	414	/* RFC2367 numbers - meets RFC2407 */
	415	#define SADB_EALG_NONE 0
	416	#define SADB_EALG_DESCBC 1 /2/
	417	#define SADB_EALG_3DESCBC 2 /3/
	418	#define SADB_EALG_NULL 3 /11/
	419	#define SADB_EALG_MAX 12
	420	/* private allocations - based on RFC2407/IANA assignment */
	421	#define SADB_X_EALG_CAST128CBC 5 /6/
	422	#define SADB_X_EALG_BLOWFISHCBC 4 /7/
	423	#define SADB_X_EALG_RIJNDAELCBC 12
2d21ac55	424	#define SADB_X_EALG_AESCBC 12
9bccf70c A	425	#define SADB_X_EALG_AES 12
9bccf70c A	426	/* private allocations should use 249-255 (RFC2407) */
1c79356b A	427
	428	#if 1 /nonstandard /
	429	#define SADB_X_CALG_NONE 0
	430	#define SADB_X_CALG_OUI 1
	431	#define SADB_X_CALG_DEFLATE 2
	432	#define SADB_X_CALG_LZS 3
	433	#define SADB_X_CALG_MAX 4
	434	#endif
	435
	436	#define SADB_IDENTTYPE_RESERVED 0
	437	#define SADB_IDENTTYPE_PREFIX 1
	438	#define SADB_IDENTTYPE_FQDN 2
	439	#define SADB_IDENTTYPE_USERFQDN 3
	440	#define SADB_X_IDENTTYPE_ADDR 4
	441	#define SADB_IDENTTYPE_MAX 4
	442
	443	/* `flags' in sadb_sa structure holds followings */
	444	#define SADB_X_EXT_NONE 0x0000 /* i.e. new format. */
	445	#define SADB_X_EXT_OLD 0x0001 /* old format. */
91447636	446	#ifdef PRIVATE
55e303ae A	447	#define SADB_X_EXT_NATT 0x0002 /* Use UDP encapsulation to traverse NAT */
	448	#define SADB_X_EXT_NATT_KEEPALIVE 0x0004 /* Local node is behind NAT, send keepalives */
	449	/* Should only be set for outbound SAs */
2d21ac55 A	450	#define SADB_X_EXT_NATT_MULTIPLEUSERS 0x0008 /* For use on VPN server - support multiple users */
	451
	452	#endif /* PRIVATE */
1c79356b A	453
	454	#define SADB_X_EXT_IV4B 0x0010 /* IV length of 4 bytes in use */
	455	#define SADB_X_EXT_DERIV 0x0020 /* DES derived */
	456	#define SADB_X_EXT_CYCSEQ 0x0040 /* allowing to cyclic sequence. */
	457
	458	/* three of followings are exclusive flags each them */
	459	#define SADB_X_EXT_PSEQ 0x0000 /* sequencial padding for ESP */
	460	#define SADB_X_EXT_PRAND 0x0100 /* random padding for ESP */
	461	#define SADB_X_EXT_PZERO 0x0200 /* zero padding for ESP */
	462	#define SADB_X_EXT_PMASK 0x0300 /* mask for padding flag */
	463
316670eb A	464	#ifdef PRIVATE
	465	#define SADB_X_EXT_NATT_DETECTED_PEER 0x1000
	466	#define SADB_X_EXT_ESP_KEEPALIVE 0x2000
	467	#define SADB_X_EXT_PUNT_RX_KEEPALIVE 0x4000
fe8ab488	468	#define SADB_X_EXT_NATT_KEEPALIVE_OFFLOAD 0x8000
316670eb A	469	#endif /* PRIVATE */
316670eb A	470
1c79356b A	471	#if 1
	472	#define SADB_X_EXT_RAWCPI 0x0080 /* use well known CPI (IPComp) */
	473	#endif
	474
fe8ab488 A	475	#define SADB_KEY_FLAGS_MAX 0x7fff
	476
	477	#ifdef PRIVATE
	478	#define SADB_X_EXT_SA2_DELETE_ON_DETACH 0x0001
	479	#endif
1c79356b A	480
	481	/* SPI size for PF_KEYv2 */
	482	#define PFKEY_SPI_SIZE sizeof(u_int32_t)
	483
	484	/* Identifier for menber of lifetime structure */
	485	#define SADB_X_LIFETIME_ALLOCATIONS 0
	486	#define SADB_X_LIFETIME_BYTES 1
	487	#define SADB_X_LIFETIME_ADDTIME 2
	488	#define SADB_X_LIFETIME_USETIME 3
	489
	490	/* The rate for SOFT lifetime against HARD one. */
	491	#define PFKEY_SOFT_LIFETIME_RATE 80
	492
	493	/* Utilities */
	494	#define PFKEY_ALIGN8(a) (1 + (((a) - 1) \| (8 - 1)))
	495	#define PFKEY_EXTLEN(msg) \
	496	PFKEY_UNUNIT64(((struct sadb_ext *)(msg))->sadb_ext_len)
	497	#define PFKEY_ADDR_PREFIX(ext) \
	498	(((struct sadb_address *)(ext))->sadb_address_prefixlen)
	499	#define PFKEY_ADDR_PROTO(ext) \
	500	(((struct sadb_address *)(ext))->sadb_address_proto)
	501	#define PFKEY_ADDR_SADDR(ext) \
	502	((struct sockaddr *)((caddr_t)(ext) + sizeof(struct sadb_address)))
	503
1c79356b A	504	/* in 64bits */
	505	#define PFKEY_UNUNIT64(a) ((a) << 3)
	506	#define PFKEY_UNIT64(a) ((a) >> 3)
1c79356b A	507
	508	#endif /* __PFKEY_V2_H */
	509
	510	#endif /* _NET_PFKEYV2_H_ */