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Annotation of 43BSDReno/sys/netns/ns.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1984, 1985, 1986, 1987 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)ns.h        7.7 (Berkeley) 6/28/90
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * Constants and Structures defined by the Xerox Network Software
        !            25:  * per "Internet Transport Protocols", XSIS 028112, December 1981
        !            26:  */
        !            27: 
        !            28: /*
        !            29:  * Protocols
        !            30:  */
        !            31: #define NSPROTO_RI     1               /* Routing Information */
        !            32: #define NSPROTO_ECHO   2               /* Echo Protocol */
        !            33: #define NSPROTO_ERROR  3               /* Error Protocol */
        !            34: #define NSPROTO_PE     4               /* Packet Exchange */
        !            35: #define NSPROTO_SPP    5               /* Sequenced Packet */
        !            36: #define NSPROTO_RAW    255             /* Placemarker*/
        !            37: #define NSPROTO_MAX    256             /* Placemarker*/
        !            38: 
        !            39: 
        !            40: /*
        !            41:  * Port/Socket numbers: network standard functions
        !            42:  */
        !            43: 
        !            44: #define NSPORT_RI      1               /* Routing Information */
        !            45: #define NSPORT_ECHO    2               /* Echo */
        !            46: #define NSPORT_RE      3               /* Router Error */
        !            47: 
        !            48: /*
        !            49:  * Ports < NSPORT_RESERVED are reserved for priveleged
        !            50:  * processes (e.g. root).
        !            51:  */
        !            52: #define NSPORT_RESERVED                3000
        !            53: 
        !            54: /* flags passed to ns_output as last parameter */
        !            55: 
        !            56: #define        NS_FORWARDING           0x1     /* most of idp header exists */
        !            57: #define        NS_ROUTETOIF            0x10    /* same as SO_DONTROUTE */
        !            58: #define        NS_ALLOWBROADCAST       SO_BROADCAST    /* can send broadcast packets */
        !            59: 
        !            60: #define NS_MAXHOPS             15
        !            61: 
        !            62: /* flags passed to get/set socket option */
        !            63: #define        SO_HEADERS_ON_INPUT     1
        !            64: #define        SO_HEADERS_ON_OUTPUT    2
        !            65: #define        SO_DEFAULT_HEADERS      3
        !            66: #define        SO_LAST_HEADER          4
        !            67: #define        SO_NSIP_ROUTE           5
        !            68: #define SO_SEQNO               6
        !            69: #define        SO_ALL_PACKETS          7
        !            70: #define SO_MTU                 8
        !            71: 
        !            72: 
        !            73: /*
        !            74:  * NS addressing
        !            75:  */
        !            76: union ns_host {
        !            77:        u_char  c_host[6];
        !            78:        u_short s_host[3];
        !            79: };
        !            80: 
        !            81: union ns_net {
        !            82:        u_char  c_net[4];
        !            83:        u_short s_net[2];
        !            84: };
        !            85: 
        !            86: union ns_net_u {
        !            87:        union ns_net    net_e;
        !            88:        u_long          long_e;
        !            89: };
        !            90: 
        !            91: struct ns_addr {
        !            92:        union ns_net    x_net;
        !            93:        union ns_host   x_host;
        !            94:        u_short x_port;
        !            95: };
        !            96: 
        !            97: /*
        !            98:  * Socket address, Xerox style
        !            99:  */
        !           100: struct sockaddr_ns {
        !           101:        u_char          sns_len;
        !           102:        u_char          sns_family;
        !           103:        struct ns_addr  sns_addr;
        !           104:        char            sns_zero[2];
        !           105: };
        !           106: #define sns_port sns_addr.x_port
        !           107: 
        !           108: #ifdef vax
        !           109: #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
        !           110: #endif
        !           111: #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
        !           112:                                        ((a).s_net[1]==(b).s_net[1]))
        !           113: #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
        !           114: #define satons_addr(sa)        (((struct sockaddr_ns *)&(sa))->sns_addr)
        !           115: #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
        !           116:        (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
        !           117: #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
        !           118: #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
        !           119:        ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
        !           120: 
        !           121: #ifdef KERNEL
        !           122: extern struct domain nsdomain;
        !           123: union ns_host ns_thishost;
        !           124: union ns_host ns_zerohost;
        !           125: union ns_host ns_broadhost;
        !           126: union ns_net ns_zeronet;
        !           127: union ns_net ns_broadnet;
        !           128: u_short ns_cksum();
        !           129: #else
        !           130: #ifdef __STDC__
        !           131: extern struct ns_addr ns_addr(const char *);
        !           132: extern char *ns_ntoa(struct ns_addr);
        !           133: #else
        !           134: extern struct ns_addr ns_addr();
        !           135: extern char *ns_ntoa();
        !           136: #endif
        !           137: #endif

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