[apple/xnu.git] / bsd / netinet6 / ipsec.h

/*	$FreeBSD: src/sys/netinet6/ipsec.h,v 1.4.2.2 2001/07/03 11:01:54 ume Exp $	*/
/*	$KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun 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.
 */

/*
 * IPsec controller part.
 */

#ifndef _NETINET6_IPSEC_H_
#define _NETINET6_IPSEC_H_
#include <sys/appleapiopts.h>

#include <net/pfkeyv2.h>
#include <netkey/keydb.h>

#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
/*
 * Security Policy Index
 * NOTE: Ensure to be same address family and upper layer protocol.
 * NOTE: ul_proto, port number, uid, gid:
 *	ANY: reserved for waldcard.
 *	0 to (~0 - 1): is one of the number of each value.
 */
struct secpolicyindex {
	u_int8_t dir;			/* direction of packet flow, see blow */
	struct sockaddr_storage src;	/* IP src address for SP */
	struct sockaddr_storage dst;	/* IP dst address for SP */
	u_int8_t prefs;			/* prefix length in bits for src */
	u_int8_t prefd;			/* prefix length in bits for dst */
	u_int16_t ul_proto;		/* upper layer Protocol */
#ifdef notyet
	uid_t uids;
	uid_t uidd;
	gid_t gids;
	gid_t gidd;
#endif
};

/* Security Policy Data Base */
struct secpolicy {
	LIST_ENTRY(secpolicy) chain;

	int refcnt;			/* reference count */
	struct secpolicyindex spidx;	/* selector */
	u_int32_t id;			/* It's unique number on the system. */
	u_int state;			/* 0: dead, others: alive */
#define IPSEC_SPSTATE_DEAD	0
#define IPSEC_SPSTATE_ALIVE	1

	u_int policy;		/* DISCARD, NONE or IPSEC, see keyv2.h */
	struct ipsecrequest *req;
				/* pointer to the ipsec request tree, */
				/* if policy == IPSEC else this value == NULL.*/

	/*
	 * lifetime handler.
	 * the policy can be used without limitiation if both lifetime and
	 * validtime are zero.
	 * "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime.
	 * "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime.
	 */
	long created;		/* time created the policy */
	long lastused;		/* updated every when kernel sends a packet */
	long lifetime;		/* duration of the lifetime of this policy */
	long validtime;		/* duration this policy is valid without use */
};

/* Request for IPsec */
struct ipsecrequest {
	struct ipsecrequest *next;
				/* pointer to next structure */
				/* If NULL, it means the end of chain. */
	struct secasindex saidx;/* hint for search proper SA */
				/* if __ss_len == 0 then no address specified.*/
	u_int level;		/* IPsec level defined below. */

	struct secasvar *sav;	/* place holder of SA for use */
	struct secpolicy *sp;	/* back pointer to SP */
};

/* security policy in PCB */
struct inpcbpolicy {
	struct secpolicy *sp_in;
	struct secpolicy *sp_out;
	int priv;			/* privileged socket ? */
};

/* SP acquiring list table. */
struct secspacq {
	LIST_ENTRY(secspacq) chain;

	struct secpolicyindex spidx;

	long created;		/* for lifetime */
	int count;		/* for lifetime */
	/* XXX: here is mbuf place holder to be sent ? */
};
#endif /* __APPLE_API_PRIVATE */
#endif /*KERNEL*/

/* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */
#define IPSEC_PORT_ANY		0
#define IPSEC_ULPROTO_ANY	255
#define IPSEC_PROTO_ANY		255

/* mode of security protocol */
/* NOTE: DON'T use IPSEC_MODE_ANY at SPD.  It's only use in SAD */
#define	IPSEC_MODE_ANY		0	/* i.e. wildcard. */
#define	IPSEC_MODE_TRANSPORT	1
#define	IPSEC_MODE_TUNNEL	2

/*
 * Direction of security policy.
 * NOTE: Since INVALID is used just as flag.
 * The other are used for loop counter too.
 */
#define IPSEC_DIR_ANY		0
#define IPSEC_DIR_INBOUND	1
#define IPSEC_DIR_OUTBOUND	2
#define IPSEC_DIR_MAX		3
#define IPSEC_DIR_INVALID	4

/* Policy level */
/*
 * IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB,
 * DISCARD, IPSEC and NONE are allowed for setkey() in SPD.
 * DISCARD and NONE are allowed for system default.
 */
#define IPSEC_POLICY_DISCARD	0	/* discarding packet */
#define IPSEC_POLICY_NONE	1	/* through IPsec engine */
#define IPSEC_POLICY_IPSEC	2	/* do IPsec */
#define IPSEC_POLICY_ENTRUST	3	/* consulting SPD if present. */
#define IPSEC_POLICY_BYPASS	4	/* only for privileged socket. */

/* Security protocol level */
#define	IPSEC_LEVEL_DEFAULT	0	/* reference to system default */
#define	IPSEC_LEVEL_USE		1	/* use SA if present. */
#define	IPSEC_LEVEL_REQUIRE	2	/* require SA. */
#define	IPSEC_LEVEL_UNIQUE	3	/* unique SA. */

#define IPSEC_MANUAL_REQID_MAX	0x3fff
				/*
				 * if security policy level == unique, this id
				 * indicate to a relative SA for use, else is
				 * zero.
				 * 1 - 0x3fff are reserved for manual keying.
				 * 0 are reserved for above reason.  Others is
				 * for kernel use.
				 * Note that this id doesn't identify SA
				 * by only itself.
				 */
#define IPSEC_REPLAYWSIZE  32

#ifdef __APPLE_API_UNSTABLE
/* statistics for ipsec processing */
struct ipsecstat {
	u_quad_t in_success;  /* succeeded inbound process */
	u_quad_t in_polvio;
			/* security policy violation for inbound process */
	u_quad_t in_nosa;     /* inbound SA is unavailable */
	u_quad_t in_inval;    /* inbound processing failed due to EINVAL */
	u_quad_t in_nomem;    /* inbound processing failed due to ENOBUFS */
	u_quad_t in_badspi;   /* failed getting a SPI */
	u_quad_t in_ahreplay; /* AH replay check failed */
	u_quad_t in_espreplay; /* ESP replay check failed */
	u_quad_t in_ahauthsucc; /* AH authentication success */
	u_quad_t in_ahauthfail; /* AH authentication failure */
	u_quad_t in_espauthsucc; /* ESP authentication success */
	u_quad_t in_espauthfail; /* ESP authentication failure */
	u_quad_t in_esphist[256];
	u_quad_t in_ahhist[256];
	u_quad_t in_comphist[256];
	u_quad_t out_success; /* succeeded outbound process */
	u_quad_t out_polvio;
			/* security policy violation for outbound process */
	u_quad_t out_nosa;    /* outbound SA is unavailable */
	u_quad_t out_inval;   /* outbound process failed due to EINVAL */
	u_quad_t out_nomem;    /* inbound processing failed due to ENOBUFS */
	u_quad_t out_noroute; /* there is no route */
	u_quad_t out_esphist[256];
	u_quad_t out_ahhist[256];
	u_quad_t out_comphist[256];
};
#endif /* __APPLE_API_UNSTABLE */

/*
 * Definitions for IPsec & Key sysctl operations.
 */
/*
 * Names for IPsec & Key sysctl objects
 */
#define IPSECCTL_STATS			1	/* stats */
#define IPSECCTL_DEF_POLICY		2
#define IPSECCTL_DEF_ESP_TRANSLEV	3	/* int; ESP transport mode */
#define IPSECCTL_DEF_ESP_NETLEV		4	/* int; ESP tunnel mode */
#define IPSECCTL_DEF_AH_TRANSLEV	5	/* int; AH transport mode */
#define IPSECCTL_DEF_AH_NETLEV		6	/* int; AH tunnel mode */
#if 0	/*obsolete, do not reuse*/
#define IPSECCTL_INBOUND_CALL_IKE	7
#endif
#define	IPSECCTL_AH_CLEARTOS		8
#define	IPSECCTL_AH_OFFSETMASK		9
#define	IPSECCTL_DFBIT			10
#define	IPSECCTL_ECN			11
#define	IPSECCTL_DEBUG			12
#define	IPSECCTL_ESP_RANDPAD		13
#define IPSECCTL_MAXID			14

#define IPSECCTL_NAMES { \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "def_policy", CTLTYPE_INT }, \
	{ "esp_trans_deflev", CTLTYPE_INT }, \
	{ "esp_net_deflev", CTLTYPE_INT }, \
	{ "ah_trans_deflev", CTLTYPE_INT }, \
	{ "ah_net_deflev", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ "ah_cleartos", CTLTYPE_INT }, \
	{ "ah_offsetmask", CTLTYPE_INT }, \
	{ "dfbit", CTLTYPE_INT }, \
	{ "ecn", CTLTYPE_INT }, \
	{ "debug", CTLTYPE_INT }, \
	{ "esp_randpad", CTLTYPE_INT }, \
}

#define IPSEC6CTL_NAMES { \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "def_policy", CTLTYPE_INT }, \
	{ "esp_trans_deflev", CTLTYPE_INT }, \
	{ "esp_net_deflev", CTLTYPE_INT }, \
	{ "ah_trans_deflev", CTLTYPE_INT }, \
	{ "ah_net_deflev", CTLTYPE_INT }, \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ 0, 0 }, \
	{ "ecn", CTLTYPE_INT }, \
	{ "debug", CTLTYPE_INT }, \
	{ "esp_randpad", CTLTYPE_INT }, \
}

#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
struct ipsec_output_state {
	struct mbuf *m;
	struct route *ro;
	struct sockaddr *dst;
};

struct ipsec_history {
	int ih_proto;
	u_int32_t ih_spi;
};

extern int ipsec_debug;

extern struct ipsecstat ipsecstat;
extern struct secpolicy ip4_def_policy;
extern int ip4_esp_trans_deflev;
extern int ip4_esp_net_deflev;
extern int ip4_ah_trans_deflev;
extern int ip4_ah_net_deflev;
extern int ip4_ah_cleartos;
extern int ip4_ah_offsetmask;
extern int ip4_ipsec_dfbit;
extern int ip4_ipsec_ecn;
extern int ip4_esp_randpad;

#define ipseclog(x)	do { if (ipsec_debug) log x; } while (0)

extern struct secpolicy *ipsec4_getpolicybysock
	__P((struct mbuf *, u_int, struct socket *, int *));
extern struct secpolicy *ipsec4_getpolicybyaddr
	__P((struct mbuf *, u_int, int, int *));

struct inpcb;
extern int ipsec_init_policy __P((struct socket *so, struct inpcbpolicy **));
extern int ipsec_copy_policy
	__P((struct inpcbpolicy *, struct inpcbpolicy *));
extern u_int ipsec_get_reqlevel __P((struct ipsecrequest *));

extern int ipsec4_set_policy __P((struct inpcb *inp, int optname,
	caddr_t request, size_t len, int priv));
extern int ipsec4_get_policy __P((struct inpcb *inpcb, caddr_t request,
	size_t len, struct mbuf **mp));
extern int ipsec4_delete_pcbpolicy __P((struct inpcb *));
extern int ipsec4_in_reject_so __P((struct mbuf *, struct socket *));
extern int ipsec4_in_reject __P((struct mbuf *, struct inpcb *));

struct secas;
struct tcpcb;
extern int ipsec_chkreplay __P((u_int32_t, struct secasvar *));
extern int ipsec_updatereplay __P((u_int32_t, struct secasvar *));

extern size_t ipsec4_hdrsiz __P((struct mbuf *, u_int, struct inpcb *));
extern size_t ipsec_hdrsiz_tcp __P((struct tcpcb *));

struct ip;
extern const char *ipsec4_logpacketstr __P((struct ip *, u_int32_t));
extern const char *ipsec_logsastr __P((struct secasvar *));

extern void ipsec_dumpmbuf __P((struct mbuf *));

extern int ipsec4_output __P((struct ipsec_output_state *, struct secpolicy *,
	int));
extern int ipsec4_tunnel_validate __P((struct mbuf *, int, u_int,
	struct secasvar *));
extern struct mbuf *ipsec_copypkt __P((struct mbuf *));
extern void ipsec_delaux __P((struct mbuf *));
extern int ipsec_setsocket __P((struct mbuf *, struct socket *));
extern struct socket *ipsec_getsocket __P((struct mbuf *));
extern int ipsec_addhist __P((struct mbuf *, int, u_int32_t)); 
extern struct ipsec_history *ipsec_gethist __P((struct mbuf *, int *));
extern void ipsec_clearhist __P((struct mbuf *));
#endif /* __APPLE_API_PRIVATE */
#endif /*KERNEL*/

#ifndef KERNEL
extern caddr_t ipsec_set_policy __P((char *, int));
extern int ipsec_get_policylen __P((caddr_t));
extern char *ipsec_dump_policy __P((caddr_t, char *));

extern const char *ipsec_strerror __P((void));
#endif /*!KERNEL*/

#endif /*_NETINET6_IPSEC_H_*/
Commit	Line	Data
9bccf70c A	1	/* $FreeBSD: src/sys/netinet6/ipsec.h,v 1.4.2.2 2001/07/03 11:01:54 ume Exp $ */
9bccf70c A	2	/* $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun Exp $ */
1c79356b A	3
	4	/*
	5	* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
	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	/*
	34	* IPsec controller part.
	35	*/
	36
	37	#ifndef _NETINET6_IPSEC_H_
	38	#define _NETINET6_IPSEC_H_
9bccf70c	39	#include <sys/appleapiopts.h>
1c79356b A	40
	41	#include <net/pfkeyv2.h>
	42	#include <netkey/keydb.h>
	43
9bccf70c A	44	#ifdef KERNEL
9bccf70c A	45	#ifdef __APPLE_API_PRIVATE
1c79356b A	46	/*
1c79356b A	47	* Security Policy Index
9bccf70c	48	* NOTE: Ensure to be same address family and upper layer protocol.
1c79356b A	49	* NOTE: ul_proto, port number, uid, gid:
	50	* ANY: reserved for waldcard.
	51	* 0 to (~0 - 1): is one of the number of each value.
	52	*/
	53	struct secpolicyindex {
	54	u_int8_t dir; /* direction of packet flow, see blow */
	55	struct sockaddr_storage src; /* IP src address for SP */
	56	struct sockaddr_storage dst; /* IP dst address for SP */
	57	u_int8_t prefs; /* prefix length in bits for src */
	58	u_int8_t prefd; /* prefix length in bits for dst */
	59	u_int16_t ul_proto; /* upper layer Protocol */
	60	#ifdef notyet
	61	uid_t uids;
	62	uid_t uidd;
	63	gid_t gids;
	64	gid_t gidd;
	65	#endif
	66	};
	67
	68	/* Security Policy Data Base */
	69	struct secpolicy {
	70	LIST_ENTRY(secpolicy) chain;
	71
	72	int refcnt; /* reference count */
	73	struct secpolicyindex spidx; /* selector */
	74	u_int32_t id; /* It's unique number on the system. */
	75	u_int state; /* 0: dead, others: alive */
	76	#define IPSEC_SPSTATE_DEAD 0
	77	#define IPSEC_SPSTATE_ALIVE 1
	78
	79	u_int policy; /* DISCARD, NONE or IPSEC, see keyv2.h */
	80	struct ipsecrequest *req;
	81	/* pointer to the ipsec request tree, */
	82	/* if policy == IPSEC else this value == NULL.*/
9bccf70c A	83
	84	/*
	85	* lifetime handler.
	86	* the policy can be used without limitiation if both lifetime and
	87	* validtime are zero.
	88	* "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime.
	89	* "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime.
	90	*/
	91	long created; /* time created the policy */
	92	long lastused; /* updated every when kernel sends a packet */
	93	long lifetime; /* duration of the lifetime of this policy */
	94	long validtime; /* duration this policy is valid without use */
1c79356b A	95	};
	96
	97	/* Request for IPsec */
	98	struct ipsecrequest {
	99	struct ipsecrequest *next;
	100	/* pointer to next structure */
	101	/* If NULL, it means the end of chain. */
	102	struct secasindex saidx;/* hint for search proper SA */
	103	/* if __ss_len == 0 then no address specified.*/
	104	u_int level; /* IPsec level defined below. */
	105
	106	struct secasvar sav; / place holder of SA for use */
	107	struct secpolicy sp; / back pointer to SP */
	108	};
	109
	110	/* security policy in PCB */
	111	struct inpcbpolicy {
	112	struct secpolicy *sp_in;
	113	struct secpolicy *sp_out;
	114	int priv; /* privileged socket ? */
	115	};
	116
	117	/* SP acquiring list table. */
	118	struct secspacq {
	119	LIST_ENTRY(secspacq) chain;
	120
	121	struct secpolicyindex spidx;
	122
9bccf70c	123	long created; /* for lifetime */
1c79356b A	124	int count; /* for lifetime */
	125	/* XXX: here is mbuf place holder to be sent ? */
	126	};
9bccf70c	127	#endif /* __APPLE_API_PRIVATE */
1c79356b A	128	#endif /KERNEL/
	129
	130	/* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */
	131	#define IPSEC_PORT_ANY 0
	132	#define IPSEC_ULPROTO_ANY 255
	133	#define IPSEC_PROTO_ANY 255
	134
	135	/* mode of security protocol */
	136	/* NOTE: DON'T use IPSEC_MODE_ANY at SPD. It's only use in SAD */
	137	#define IPSEC_MODE_ANY 0 /* i.e. wildcard. */
	138	#define IPSEC_MODE_TRANSPORT 1
	139	#define IPSEC_MODE_TUNNEL 2
	140
	141	/*
	142	* Direction of security policy.
	143	* NOTE: Since INVALID is used just as flag.
	144	* The other are used for loop counter too.
	145	*/
	146	#define IPSEC_DIR_ANY 0
	147	#define IPSEC_DIR_INBOUND 1
	148	#define IPSEC_DIR_OUTBOUND 2
	149	#define IPSEC_DIR_MAX 3
	150	#define IPSEC_DIR_INVALID 4
	151
	152	/* Policy level */
	153	/*
9bccf70c A	154	* IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB,
	155	* DISCARD, IPSEC and NONE are allowed for setkey() in SPD.
	156	* DISCARD and NONE are allowed for system default.
1c79356b A	157	*/
	158	#define IPSEC_POLICY_DISCARD 0 /* discarding packet */
	159	#define IPSEC_POLICY_NONE 1 /* through IPsec engine */
	160	#define IPSEC_POLICY_IPSEC 2 /* do IPsec */
	161	#define IPSEC_POLICY_ENTRUST 3 /* consulting SPD if present. */
	162	#define IPSEC_POLICY_BYPASS 4 /* only for privileged socket. */
	163
	164	/* Security protocol level */
	165	#define IPSEC_LEVEL_DEFAULT 0 /* reference to system default */
	166	#define IPSEC_LEVEL_USE 1 /* use SA if present. */
	167	#define IPSEC_LEVEL_REQUIRE 2 /* require SA. */
	168	#define IPSEC_LEVEL_UNIQUE 3 /* unique SA. */
	169
	170	#define IPSEC_MANUAL_REQID_MAX 0x3fff
	171	/*
	172	* if security policy level == unique, this id
	173	* indicate to a relative SA for use, else is
	174	* zero.
	175	* 1 - 0x3fff are reserved for manual keying.
	176	* 0 are reserved for above reason. Others is
	177	* for kernel use.
	178	* Note that this id doesn't identify SA
	179	* by only itself.
	180	*/
	181	#define IPSEC_REPLAYWSIZE 32
	182
9bccf70c	183	#ifdef __APPLE_API_UNSTABLE
1c79356b A	184	/* statistics for ipsec processing */
	185	struct ipsecstat {
	186	u_quad_t in_success; /* succeeded inbound process */
	187	u_quad_t in_polvio;
	188	/* security policy violation for inbound process */
	189	u_quad_t in_nosa; /* inbound SA is unavailable */
	190	u_quad_t in_inval; /* inbound processing failed due to EINVAL */
	191	u_quad_t in_nomem; /* inbound processing failed due to ENOBUFS */
	192	u_quad_t in_badspi; /* failed getting a SPI */
	193	u_quad_t in_ahreplay; /* AH replay check failed */
	194	u_quad_t in_espreplay; /* ESP replay check failed */
	195	u_quad_t in_ahauthsucc; /* AH authentication success */
	196	u_quad_t in_ahauthfail; /* AH authentication failure */
	197	u_quad_t in_espauthsucc; /* ESP authentication success */
	198	u_quad_t in_espauthfail; /* ESP authentication failure */
	199	u_quad_t in_esphist[256];
	200	u_quad_t in_ahhist[256];
	201	u_quad_t in_comphist[256];
	202	u_quad_t out_success; /* succeeded outbound process */
	203	u_quad_t out_polvio;
	204	/* security policy violation for outbound process */
	205	u_quad_t out_nosa; /* outbound SA is unavailable */
	206	u_quad_t out_inval; /* outbound process failed due to EINVAL */
	207	u_quad_t out_nomem; /* inbound processing failed due to ENOBUFS */
	208	u_quad_t out_noroute; /* there is no route */
	209	u_quad_t out_esphist[256];
	210	u_quad_t out_ahhist[256];
	211	u_quad_t out_comphist[256];
	212	};
9bccf70c	213	#endif /* __APPLE_API_UNSTABLE */
1c79356b A	214
	215	/*
	216	* Definitions for IPsec & Key sysctl operations.
	217	*/
	218	/*
	219	* Names for IPsec & Key sysctl objects
	220	*/
	221	#define IPSECCTL_STATS 1 /* stats */
	222	#define IPSECCTL_DEF_POLICY 2
	223	#define IPSECCTL_DEF_ESP_TRANSLEV 3 /* int; ESP transport mode */
	224	#define IPSECCTL_DEF_ESP_NETLEV 4 /* int; ESP tunnel mode */
	225	#define IPSECCTL_DEF_AH_TRANSLEV 5 /* int; AH transport mode */
	226	#define IPSECCTL_DEF_AH_NETLEV 6 /* int; AH tunnel mode */
9bccf70c	227	#if 0 /obsolete, do not reuse/
1c79356b	228	#define IPSECCTL_INBOUND_CALL_IKE 7
9bccf70c	229	#endif
1c79356b A	230	#define IPSECCTL_AH_CLEARTOS 8
	231	#define IPSECCTL_AH_OFFSETMASK 9
	232	#define IPSECCTL_DFBIT 10
	233	#define IPSECCTL_ECN 11
	234	#define IPSECCTL_DEBUG 12
9bccf70c A	235	#define IPSECCTL_ESP_RANDPAD 13
9bccf70c A	236	#define IPSECCTL_MAXID 14
1c79356b A	237
	238	#define IPSECCTL_NAMES { \
	239	{ 0, 0 }, \
	240	{ 0, 0 }, \
	241	{ "def_policy", CTLTYPE_INT }, \
	242	{ "esp_trans_deflev", CTLTYPE_INT }, \
	243	{ "esp_net_deflev", CTLTYPE_INT }, \
	244	{ "ah_trans_deflev", CTLTYPE_INT }, \
	245	{ "ah_net_deflev", CTLTYPE_INT }, \
9bccf70c	246	{ 0, 0 }, \
1c79356b A	247	{ "ah_cleartos", CTLTYPE_INT }, \
	248	{ "ah_offsetmask", CTLTYPE_INT }, \
	249	{ "dfbit", CTLTYPE_INT }, \
	250	{ "ecn", CTLTYPE_INT }, \
	251	{ "debug", CTLTYPE_INT }, \
9bccf70c	252	{ "esp_randpad", CTLTYPE_INT }, \
1c79356b A	253	}
	254
	255	#define IPSEC6CTL_NAMES { \
	256	{ 0, 0 }, \
	257	{ 0, 0 }, \
	258	{ "def_policy", CTLTYPE_INT }, \
	259	{ "esp_trans_deflev", CTLTYPE_INT }, \
	260	{ "esp_net_deflev", CTLTYPE_INT }, \
	261	{ "ah_trans_deflev", CTLTYPE_INT }, \
	262	{ "ah_net_deflev", CTLTYPE_INT }, \
9bccf70c	263	{ 0, 0 }, \
1c79356b A	264	{ 0, 0 }, \
	265	{ 0, 0 }, \
	266	{ 0, 0 }, \
	267	{ "ecn", CTLTYPE_INT }, \
	268	{ "debug", CTLTYPE_INT }, \
9bccf70c	269	{ "esp_randpad", CTLTYPE_INT }, \
1c79356b A	270	}
1c79356b A	271
9bccf70c A	272	#ifdef KERNEL
9bccf70c A	273	#ifdef __APPLE_API_PRIVATE
1c79356b A	274	struct ipsec_output_state {
	275	struct mbuf *m;
	276	struct route *ro;
	277	struct sockaddr *dst;
	278	};
	279
9bccf70c A	280	struct ipsec_history {
	281	int ih_proto;
	282	u_int32_t ih_spi;
	283	};
	284
1c79356b A	285	extern int ipsec_debug;
1c79356b A	286
1c79356b A	287	extern struct ipsecstat ipsecstat;
	288	extern struct secpolicy ip4_def_policy;
	289	extern int ip4_esp_trans_deflev;
	290	extern int ip4_esp_net_deflev;
	291	extern int ip4_ah_trans_deflev;
	292	extern int ip4_ah_net_deflev;
1c79356b A	293	extern int ip4_ah_cleartos;
	294	extern int ip4_ah_offsetmask;
	295	extern int ip4_ipsec_dfbit;
	296	extern int ip4_ipsec_ecn;
9bccf70c	297	extern int ip4_esp_randpad;
1c79356b A	298
	299	#define ipseclog(x) do { if (ipsec_debug) log x; } while (0)
	300
	301	extern struct secpolicy *ipsec4_getpolicybysock
	302	__P((struct mbuf , u_int, struct socket , int *));
	303	extern struct secpolicy *ipsec4_getpolicybyaddr
	304	__P((struct mbuf , u_int, int, int ));
	305
1c79356b	306	struct inpcb;
1c79356b A	307	extern int ipsec_init_policy __P((struct socket so, struct inpcbpolicy *));
	308	extern int ipsec_copy_policy
	309	__P((struct inpcbpolicy , struct inpcbpolicy ));
	310	extern u_int ipsec_get_reqlevel __P((struct ipsecrequest *));
	311
	312	extern int ipsec4_set_policy __P((struct inpcb *inp, int optname,
	313	caddr_t request, size_t len, int priv));
	314	extern int ipsec4_get_policy __P((struct inpcb *inpcb, caddr_t request,
	315	size_t len, struct mbuf **mp));
	316	extern int ipsec4_delete_pcbpolicy __P((struct inpcb *));
	317	extern int ipsec4_in_reject_so __P((struct mbuf , struct socket ));
	318	extern int ipsec4_in_reject __P((struct mbuf , struct inpcb ));
	319
1c79356b A	320	struct secas;
1c79356b A	321	struct tcpcb;
1c79356b A	322	extern int ipsec_chkreplay __P((u_int32_t, struct secasvar *));
	323	extern int ipsec_updatereplay __P((u_int32_t, struct secasvar *));
	324
	325	extern size_t ipsec4_hdrsiz __P((struct mbuf , u_int, struct inpcb ));
9bccf70c	326	extern size_t ipsec_hdrsiz_tcp __P((struct tcpcb *));
1c79356b A	327
1c79356b A	328	struct ip;
1c79356b	329	extern const char ipsec4_logpacketstr __P((struct ip , u_int32_t));
1c79356b A	330	extern const char ipsec_logsastr __P((struct secasvar ));
	331
	332	extern void ipsec_dumpmbuf __P((struct mbuf *));
	333
	334	extern int ipsec4_output __P((struct ipsec_output_state , struct secpolicy ,
	335	int));
9bccf70c	336	extern int ipsec4_tunnel_validate __P((struct mbuf *, int, u_int,
1c79356b	337	struct secasvar *));
1c79356b	338	extern struct mbuf ipsec_copypkt __P((struct mbuf ));
9bccf70c A	339	extern void ipsec_delaux __P((struct mbuf *));
9bccf70c A	340	extern int ipsec_setsocket __P((struct mbuf , struct socket ));
1c79356b	341	extern struct socket ipsec_getsocket __P((struct mbuf ));
9bccf70c A	342	extern int ipsec_addhist __P((struct mbuf *, int, u_int32_t));
	343	extern struct ipsec_history ipsec_gethist __P((struct mbuf , int *));
	344	extern void ipsec_clearhist __P((struct mbuf *));
	345	#endif /* __APPLE_API_PRIVATE */
1c79356b A	346	#endif /KERNEL/
	347
	348	#ifndef KERNEL
9bccf70c A	349	extern caddr_t ipsec_set_policy __P((char *, int));
	350	extern int ipsec_get_policylen __P((caddr_t));
	351	extern char ipsec_dump_policy __P((caddr_t, char ));
1c79356b	352
9bccf70c	353	extern const char *ipsec_strerror __P((void));
1c79356b A	354	#endif /!KERNEL/
	355
	356	#endif /_NETINET6_IPSEC_H_/