/*      $OpenBSD: npppd_auth_local.h,v 1.9 2024/02/26 10:42:05 yasuoka Exp $ */

/*-
 * Copyright (c) 2009 Internet Initiative Japan Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

struct _npppd_auth_base {
        /** name of realm */
        char    name[NPPPD_GENERIC_NAME_LEN];
        /** reference indicated to parent npppd */
        npppd   *npppd;
        /** type of authentication realm */
        int     type;
        /** PPP suffix */
        char    pppsuffix[64];
        uint32_t
                /** whether initialized or not */
                initialized:1,
                /** in disposing */
                disposing:1,
                /** Is the radius configuration ready */
                radius_ready:1,
                /** whether EAP capable or not */
                eap_capable:1,
                /** whether force to strip Windows-NT domain or not */
                strip_nt_domain:1,
                /** whether force to strip after the '@' of PPP username or not */
                strip_atmark_realm:1,
                /** has users list */
                has_users_file:1,
                reserved:25;

        /** path name of account list */
        char    users_file_path[64];
        /** last load time */
        time_t  last_load;
        /**counter of sessions from this auth */
        int    user_max_session;
};

#ifdef USE_NPPPD_RADIUS
struct _npppd_auth_radius {
        /** parent of npppd_auth_base */
        npppd_auth_base nar_base;

        /** RADIUS authentication server setting */
        radius_req_setting *rad_auth_setting;

        /** RADIUS accounting server setting */
        radius_req_setting *rad_acct_setting;

        /** Whether RADIUS accounting-on is noticed */
        int rad_acct_on;
};
#endif

/** type of local authentication realm */
struct _npppd_auth_local {
        /* parent npppd_auth_base */
        npppd_auth_base nal_base;
};

static npppd_auth_user *npppd_auth_get_user (npppd_auth_base *, const char *);
static int              npppd_auth_base_log (npppd_auth_base *, int, const char *, ...);

#ifdef USE_NPPPD_RADIUS
enum RADIUS_SERVER_TYPE {
        RADIUS_SERVER_TYPE_AUTH,
        RADIUS_SERVER_TYPE_ACCT
};

static int              npppd_auth_radius_reload (npppd_auth_base *, struct authconf *);
#endif

#ifdef NPPPD_AUTH_DEBUG
#define NPPPD_AUTH_DBG(x)       npppd_auth_base_log x
#define NPPPD_AUTH_ASSERT(x)    ASSERT(x)
#else
#define NPPPD_AUTH_DBG(x)
#define NPPPD_AUTH_ASSERT(x)
#endif

#define DEFAULT_RADIUS_AUTH_PORT        1812
#define DEFAULT_RADIUS_ACCT_PORT        1813
#define DEFAULT_RADIUS_TIMEOUT          9
#define DEFAULT_RADIUS_MAX_TRIES        3
#define DEFAULT_RADIUS_MAX_FAILOVERS    1