[apple/xnu.git] / bsd / netkey / keydb.h

/*	$KAME: keydb.h,v 1.9 2000/02/22 14:06:41 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.
 */

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

#ifdef BSD_KERNEL_PRIVATE

#include <netkey/key_var.h>
#include <net/if_utun.h>

/* Security Assocciation Index */
/* NOTE: Ensure to be same address family */
struct secasindex {
	struct sockaddr_storage src;	/* srouce address for SA */
	struct sockaddr_storage dst;	/* destination address for SA */
	u_int16_t proto;		/* IPPROTO_ESP or IPPROTO_AH */
	u_int8_t mode;			/* mode of protocol, see ipsec.h */
	u_int32_t reqid;		/* reqid id who owned this SA */
					/* see IPSEC_MANUAL_REQID_MAX. */
};

/* Security Association Data Base */
struct secashead {
	LIST_ENTRY(secashead) chain;

	struct secasindex saidx;

	struct sadb_ident *idents;	/* source identity */
	struct sadb_ident *identd;	/* destination identity */
					/* XXX I don't know how to use them. */

	u_int8_t dir;                   /* IPSEC_DIR_INBOUND or IPSEC_DIR_OUTBOUND */
	u_int8_t state;			/* MATURE or DEAD. */
	LIST_HEAD(_satree, secasvar) savtree[SADB_SASTATE_MAX+1];
					/* SA chain */
					/* The first of this list is newer SA */

	struct route sa_route;		/* route cache */
};

typedef int (*utun_is_keepalive_func) __P((void *, void *, u_int16_t, u_int32_t, size_t));
typedef int (*utun_input_func) __P((void *, void *, protocol_family_t family));

/* Security Association */
struct secasvar {
	LIST_ENTRY(secasvar) chain;
	LIST_ENTRY(secasvar) spihash;
	int refcnt;			/* reference count */
	u_int8_t state;			/* Status of this Association */

	u_int8_t alg_auth;		/* Authentication Algorithm Identifier*/
	u_int8_t alg_enc;		/* Cipher Algorithm Identifier */
	u_int32_t spi;			/* SPI Value, network byte order */
	u_int32_t flags;		/* holder for SADB_KEY_FLAGS */

	struct sadb_key *key_auth;	/* Key for Authentication */
	struct sadb_key *key_enc;	/* Key for Encryption */
	caddr_t iv;			/* Initilization Vector */
	u_int ivlen;			/* length of IV */
	void *sched;			/* intermediate encryption key */
	size_t schedlen;

	struct secreplay *replay;	/* replay prevention */
	long created;			/* for lifetime */

	struct sadb_lifetime *lft_c;	/* CURRENT lifetime, it's constant. */
	struct sadb_lifetime *lft_h;	/* HARD lifetime */
	struct sadb_lifetime *lft_s;	/* SOFT lifetime */

	u_int32_t seq;			/* sequence number */
	pid_t pid;			/* message's pid */

	struct secashead *sah;		/* back pointer to the secashead */
	
	/* Nat Traversal related bits */
	u_int32_t	natt_last_activity;
	u_int16_t	remote_ike_port;
	u_int16_t	natt_encapsulated_src_port;	/* network byte order */
	
	u_int8_t	always_expire; /* Send expire/delete messages even if unused */

	void              *utun_pcb;
	utun_is_keepalive_func    utun_is_keepalive_fn;
	utun_input_func    utun_in_fn;
};

/* replay prevention */
struct secreplay {
	u_int32_t count;
	u_int wsize;		/* window size, i.g. 4 bytes */
	u_int32_t seq;		/* used by sender */
	u_int32_t lastseq;	/* used by receiver */
	caddr_t bitmap;		/* used by receiver */
	int overflow;		/* overflow flag */
};

/* socket table due to send PF_KEY messages. */
struct secreg {
	LIST_ENTRY(secreg) chain;

	struct socket *so;
};

#ifndef IPSEC_NONBLOCK_ACQUIRE
/* acquiring list table. */
struct secacq {
	LIST_ENTRY(secacq) chain;

	struct secasindex saidx;

	u_int32_t seq;		/* sequence number */
	long created;		/* for lifetime */
	int count;		/* for lifetime */
};
#endif

/* Sensitivity Level Specification */
/* nothing */

#define SADB_KILL_INTERVAL	600	/* six seconds */

struct key_cb {
	int key_count;
	int any_count;
};

/* secpolicy */
extern struct secpolicy *keydb_newsecpolicy(void);
extern void keydb_delsecpolicy(struct secpolicy *);
/* secashead */
extern struct secashead *keydb_newsecashead(void);
// extern void keydb_delsecashead(struct secashead *);	// not used
/* secasvar */
// extern struct secasvar *keydb_newsecasvar(void);		// not used
// extern void keydb_refsecasvar(struct secasvar *);	// not used
// extern void keydb_freesecasvar(struct secasvar *);	// not used
/* secreplay */
extern struct secreplay *keydb_newsecreplay(size_t);
extern void keydb_delsecreplay(struct secreplay *);
/* secreg */
// extern struct secreg *keydb_newsecreg(void);			// not used
// extern void keydb_delsecreg(struct secreg *);		// not used

#endif /* BSD_KERNEL_PRIVATE */

#endif /* _NETKEY_KEYDB_H_ */
Commit	Line	Data
1c79356b A	1	/* $KAME: keydb.h,v 1.9 2000/02/22 14:06:41 itojun Exp $ */
	2
	3	/*
	4	* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. Neither the name of the project nor the names of its contributors
	16	* may be used to endorse or promote products derived from this software
	17	* without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	29	* SUCH DAMAGE.
	30	*/
	31
	32	#ifndef _NETKEY_KEYDB_H_
	33	#define _NETKEY_KEYDB_H_
9bccf70c	34	#include <sys/appleapiopts.h>
1c79356b	35
39236c6e	36	#ifdef BSD_KERNEL_PRIVATE
1c79356b A	37
1c79356b A	38	#include <netkey/key_var.h>
316670eb	39	#include <net/if_utun.h>
1c79356b A	40
	41	/* Security Assocciation Index */
	42	/* NOTE: Ensure to be same address family */
	43	struct secasindex {
	44	struct sockaddr_storage src; /* srouce address for SA */
	45	struct sockaddr_storage dst; /* destination address for SA */
	46	u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */
	47	u_int8_t mode; /* mode of protocol, see ipsec.h */
	48	u_int32_t reqid; /* reqid id who owned this SA */
	49	/* see IPSEC_MANUAL_REQID_MAX. */
	50	};
	51
	52	/* Security Association Data Base */
	53	struct secashead {
	54	LIST_ENTRY(secashead) chain;
	55
	56	struct secasindex saidx;
	57
	58	struct sadb_ident idents; / source identity */
	59	struct sadb_ident identd; / destination identity */
	60	/* XXX I don't know how to use them. */
	61
b0d623f7	62	u_int8_t dir; /* IPSEC_DIR_INBOUND or IPSEC_DIR_OUTBOUND */
1c79356b A	63	u_int8_t state; /* MATURE or DEAD. */
	64	LIST_HEAD(_satree, secasvar) savtree[SADB_SASTATE_MAX+1];
	65	/* SA chain */
	66	/* The first of this list is newer SA */
	67
	68	struct route sa_route; /* route cache */
	69	};
	70
316670eb A	71	typedef int (utun_is_keepalive_func) __P((void , void *, u_int16_t, u_int32_t, size_t));
	72	typedef int (utun_input_func) __P((void , void *, protocol_family_t family));
	73
1c79356b A	74	/* Security Association */
	75	struct secasvar {
	76	LIST_ENTRY(secasvar) chain;
91447636	77	LIST_ENTRY(secasvar) spihash;
1c79356b A	78	int refcnt; /* reference count */
	79	u_int8_t state; /* Status of this Association */
	80
	81	u_int8_t alg_auth; /* Authentication Algorithm Identifier*/
	82	u_int8_t alg_enc; /* Cipher Algorithm Identifier */
	83	u_int32_t spi; /* SPI Value, network byte order */
	84	u_int32_t flags; /* holder for SADB_KEY_FLAGS */
	85
	86	struct sadb_key key_auth; / Key for Authentication */
1c79356b	87	struct sadb_key key_enc; / Key for Encryption */
1c79356b A	88	caddr_t iv; /* Initilization Vector */
1c79356b A	89	u_int ivlen; /* length of IV */
9bccf70c A	90	void sched; / intermediate encryption key */
9bccf70c A	91	size_t schedlen;
1c79356b A	92
1c79356b A	93	struct secreplay replay; / replay prevention */
9bccf70c	94	long created; /* for lifetime */
1c79356b A	95
	96	struct sadb_lifetime lft_c; / CURRENT lifetime, it's constant. */
	97	struct sadb_lifetime lft_h; / HARD lifetime */
	98	struct sadb_lifetime lft_s; / SOFT lifetime */
	99
	100	u_int32_t seq; /* sequence number */
	101	pid_t pid; /* message's pid */
	102
	103	struct secashead sah; / back pointer to the secashead */
55e303ae A	104
	105	/* Nat Traversal related bits */
	106	u_int32_t natt_last_activity;
	107	u_int16_t remote_ike_port;
2d21ac55	108	u_int16_t natt_encapsulated_src_port; /* network byte order */
39236c6e A	109
39236c6e A	110	u_int8_t always_expire; /* Send expire/delete messages even if unused */
316670eb A	111
	112	void *utun_pcb;
	113	utun_is_keepalive_func utun_is_keepalive_fn;
	114	utun_input_func utun_in_fn;
1c79356b A	115	};
	116
	117	/* replay prevention */
	118	struct secreplay {
	119	u_int32_t count;
	120	u_int wsize; /* window size, i.g. 4 bytes */
	121	u_int32_t seq; /* used by sender */
	122	u_int32_t lastseq; /* used by receiver */
	123	caddr_t bitmap; /* used by receiver */
	124	int overflow; /* overflow flag */
	125	};
	126
	127	/* socket table due to send PF_KEY messages. */
	128	struct secreg {
	129	LIST_ENTRY(secreg) chain;
	130
	131	struct socket *so;
	132	};
	133
	134	#ifndef IPSEC_NONBLOCK_ACQUIRE
	135	/* acquiring list table. */
	136	struct secacq {
	137	LIST_ENTRY(secacq) chain;
	138
	139	struct secasindex saidx;
	140
	141	u_int32_t seq; /* sequence number */
9bccf70c	142	long created; /* for lifetime */
1c79356b A	143	int count; /* for lifetime */
	144	};
	145	#endif
	146
	147	/* Sensitivity Level Specification */
	148	/* nothing */
	149
	150	#define SADB_KILL_INTERVAL 600 /* six seconds */
	151
	152	struct key_cb {
	153	int key_count;
	154	int any_count;
	155	};
	156
	157	/* secpolicy */
91447636 A	158	extern struct secpolicy *keydb_newsecpolicy(void);
91447636 A	159	extern void keydb_delsecpolicy(struct secpolicy *);
1c79356b	160	/* secashead */
91447636	161	extern struct secashead *keydb_newsecashead(void);
2d21ac55	162	// extern void keydb_delsecashead(struct secashead *); // not used
1c79356b	163	/* secasvar */
2d21ac55 A	164	// extern struct secasvar *keydb_newsecasvar(void); // not used
	165	// extern void keydb_refsecasvar(struct secasvar *); // not used
	166	// extern void keydb_freesecasvar(struct secasvar *); // not used
1c79356b	167	/* secreplay */
91447636 A	168	extern struct secreplay *keydb_newsecreplay(size_t);
91447636 A	169	extern void keydb_delsecreplay(struct secreplay *);
1c79356b	170	/* secreg */
2d21ac55 A	171	// extern struct secreg *keydb_newsecreg(void); // not used
2d21ac55 A	172	// extern void keydb_delsecreg(struct secreg *); // not used
1c79356b	173
39236c6e	174	#endif /* BSD_KERNEL_PRIVATE */
1c79356b A	175
1c79356b A	176	#endif /* _NETKEY_KEYDB_H_ */