/*      $NetBSD: sainfo.h,v 1.9 2025/03/07 15:55:29 christos Exp $      */

/* Id: sainfo.h,v 1.5 2006/07/09 17:19:38 manubsd 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 _SAINFO_H
#define _SAINFO_H

#include <sys/queue.h>

#define SAINFO_ANONYMOUS        ((void *)NULL)
#define SAINFO_CLIENTADDR       ((void *)~0)

/* SA info */
struct sainfo {
        vchar_t *idsrc;
        vchar_t *iddst;
                /*
                 * idsrc and iddst are constructed body of ID payload.
                 * that is (struct ipsecdoi_id_b) + ID value.
                 * If idsrc == NULL, that is anonymous entry.
                 * If idsrc == ~0, that is client address entry.
                 */

#ifdef ENABLE_HYBRID
        vchar_t *group;
#endif

        time_t lifetime;
        int lifebyte;
        int pfs_group;          /* only use when pfs is required. */
        vchar_t *id_i;          /* identifier of the authorized initiator */
        struct sainfoalg *algs[MAXALGCLASS];

        uint32_t remoteid;

        LIST_ENTRY(sainfo) chain;
};

/* algorithm type */
struct sainfoalg {
        int alg;
        int encklen;                    /* key length if encryption algorithm */
        struct sainfoalg *next;
};

extern struct sainfo *getsainfo(const vchar_t *,
    const vchar_t *, const vchar_t *, const vchar_t *, uint32_t);
extern struct sainfo *newsainfo(void);
extern void delsainfo(struct sainfo *);
extern void inssainfo(struct sainfo *);
extern void remsainfo(struct sainfo *);
extern void flushsainfo(void);
extern void initsainfo(void);
extern struct sainfoalg *newsainfoalg(void);
extern void delsainfoalg(struct sainfoalg *);
extern void inssainfoalg(struct sainfoalg **, struct sainfoalg *);
extern const char * sainfo2str(const struct sainfo *);

extern void sainfo_start_reload(void);
extern void sainfo_finish_reload(void);
extern void save_sainfotree_restore(void);

#endif /* _SAINFO_H */