/********************************************************Copyright.IBM*****/
/*                                                                        */
/*                                                                        */
/*      Multi-Protocol Transport Services                                 */
/*                                                                        */
/*      Licensed Materials - Property of IBM (R)                          */
/*      5622-069                                                          */
/*      (C) Copyright IBM Corp. 1993, All right reserved.                 */
/*      US Government Users Restricted Rights - Use, duplication,         */
/*      disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */
/*                                                                        */
/********************************************************Copyright.IBM*****/




/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at Berkeley. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 *
 *      @(#)in.h        7.5 (Berkeley) 2/22/88
 */

/*
 * Constants and structures defined by the internet system,
 * Per RFC 790, September 1981.
 */

#ifndef MPTNIN   
#define MPTNIN  

/*
 * Protocols
 */
#define IPPROTO_IP              0               /* dummy for IP */
#define IPPROTO_ICMP            1               /* control message protocol */
#define IPPROTO_GGP             3               /* gateway^2 (deprecated) */
#define IPPROTO_TCP             6               /* tcp */
#define IPPROTO_EGP             8               /* exterior gateway protocol */
#define IPPROTO_PUP             12              /* pup */
#define IPPROTO_UDP             17              /* user datagram protocol */
#define IPPROTO_IDP             22              /* xns idp */

#define IPPROTO_RAW             255             /* raw IP packet */
#define IPPROTO_MAX             256

#ifdef MPTN
/*
 *  MPTN - user selection of B-Specific PROTOCOL
 *       - use with A-name type = AF_INET only
 *       - watch out for conflict with specifc AF's protocol #define
*/
#define IPPROTO__START 0x1000   /* start of user selected B-SPEC */
#define IPPROTO__OS2   AF_OS2+IPPROTO__START  /* B-SPEC = local */
#define IPPROTO__NB    AF_NB+IPPROTO__START   /* B-SPEC = Netbios */
#define IPPROTO__SNA   AF_SNA+IPPROTO__START  /* B-SPEC = SNA   */
#define IPPROTO__INET  AF_INET+IPPROTO__START /* B-SPEC = TCP or UDP */
#define IPPROTO__END   0x2000   /* end of user selected B-spec */
#endif

/*
 * Ports < IPPORT_RESERVED are reserved for
 * privileged processes (e.g. root).
 * Ports > IPPORT_USERRESERVED are reserved
 * for servers, not necessarily privileged.
 */
#define IPPORT_RESERVED         1024
#define IPPORT_USERRESERVED     5000

/*
 * Link numbers
 */
#define IMPLINK_IP              155
#define IMPLINK_LOWEXPER        156
#define IMPLINK_HIGHEXPER       158

/*
 * Internet address (a structure for historical reasons)
 */
struct in_addr {
        u_long s_addr;
};

/*
 * Definitions of bits in internet address integers.
 * On subnets, the decomposition of addresses to host and net parts
 * is done according to subnet mask, not the masks here.
 */
#define IN_CLASSA(i)            (((long)(i) & 0x80000000L) == 0)
#define IN_CLASSA_NET           0xff000000L
#define IN_CLASSA_NSHIFT        24
#define IN_CLASSA_HOST          0x00ffffffL
#define IN_CLASSA_MAX           128

#define IN_CLASSB(i)            (((long)(i) & 0xc0000000L) == 0x80000000L)
#define IN_CLASSB_NET           0xffff0000L
#define IN_CLASSB_NSHIFT        16
#define IN_CLASSB_HOST          0x0000ffffL
#define IN_CLASSB_MAX           65536L

#define IN_CLASSC(i)            (((long)(i) & 0xe0000000L) == 0xc0000000L)
#define IN_CLASSC_NET           0xffffff00L
#define IN_CLASSC_NSHIFT        8
#define IN_CLASSC_HOST          0x000000ffL

#define IN_CLASSD(i)            (((long)(i) & 0xf0000000L) == 0xe0000000L)
#define IN_MULTICAST(i)         IN_CLASSD(i)

#define IN_EXPERIMENTAL(i)      (((long)(i) & 0xe0000000L) == 0xe0000000L)
#define IN_BADCLASS(i)          (((long)(i) & 0xf0000000L) == 0xf0000000L)

#define INADDR_ANY              (u_long)0x00000000L
#define INADDR_BROADCAST        (u_long)0xffffffffL     /* must be masked */
#ifndef KERNEL
#define INADDR_NONE             0xffffffffL             /* -1 return */
#endif

#define IN_LOOPBACKNET          127                     /* official! */

/*
 * Socket address, internet style.
 */
struct sockaddr_in {
        short   sin_family;
        u_short sin_port;
        struct  in_addr sin_addr;
        char    sin_zero[8];
};

struct sockaddr_in8 {
        short   sin_family;
        u_short sin_port;
        struct  in_addr sin_addr;
};

/*
 * Options for use with [gs]etsockopt at the IP level.
 */
#define IP_OPTIONS      1               /* set/get IP per-packet options */

#ifdef KERNEL
extern  struct domain inetdomain;
extern  struct protosw inetsw[];
struct  in_addr in_makeaddr();
u_long  in_netof(), in_lnaof();
#endif /* KERNAL */

#endif /* MPTNIN */   
