/*      $OpenBSD: npppd_ctl.h,v 1.7 2017/08/11 16:25:59 goda 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.
 */
#ifndef NPPPD_CTL_H
#define NPPPD_CTL_H 1

#include <sys/types.h>
#include <sys/socket.h>         /* for <netinet/in.h> */
#include <net/if.h>             /* for IF_NAMESIZE */
#include <net/if_dl.h>          /* for sockaddr_dl */
#include <netinet/in.h>         /* for sockaddr_in{,6} and in_addr */
#include <imsg.h>               /* for imsg */
#include <time.h>               /* for time_t */

#define NPPPD_SOCKET                    "/var/run/npppd.sock"
#define NPPPD_CTL_USERNAME_SIZE         256

enum imsg_type {
        IMSG_NONE,
        IMSG_CTL_OK,                    /* answers to npppctl requests */
        IMSG_CTL_FAIL,          
        IMSG_CTL_NOP,                   /* npppctl requests */
        IMSG_CTL_WHO,
        IMSG_CTL_DISCONNECT,
        IMSG_CTL_MONITOR,
        IMSG_CTL_WHO_AND_MONITOR,
        IMSG_PPP_START,                 /* notifies from npppd */
        IMSG_PPP_STOP
};

struct npppd_who {
        u_int             ppp_id;       /** Ppp Id */
        char              username[NPPPD_CTL_USERNAME_SIZE];
                                        /** Username */
        time_t            time;         /** Start time */
        uint32_t          duration_sec; /** Elapsed time */
        char              ifname[IF_NAMESIZE];
                                        /** Concentrated interface */
        char              rlmname[32];  /** Authenticated realm name */
        char              tunnel_proto[16];
                                        /** Tunnel protocol name */
        union {
                struct sockaddr_in  peer_in4;
                struct sockaddr_in6 peer_in6;
                struct sockaddr_dl  peer_dl;
        }                 tunnel_peer;  /** Tunnel peer address */
        struct in_addr    framed_ip_address;
                                        /** Framed IP Address */
        uint16_t          mru;          /** MRU */
        uint32_t          ipackets;     /** Numbers of input packets */
        uint32_t          opackets;     /** Numbers of output packets */
        uint32_t          ierrors;      /** Numbers of input error packets */
        uint32_t          oerrors;      /** Numbers of output error packets */
        uint64_t          ibytes;       /** Bytes of input packets */
        uint64_t          obytes;       /** Bytes of output packets */
};

struct npppd_who_list {
        int               more_data;    /** 1 if there is more data */
        int               entry_count;  /** count of the entry */
        struct npppd_who  entry[0];     /** entry arrays */
};

struct npppd_disconnect_request {
        int               count;
        u_int             ppp_id[0];
} ;

struct npppd_disconnect_response {
        int               count;
};
#endif