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Annotation of 43BSDTahoe/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 and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  *
        !            17:  *     @(#)ns.h        7.4 (Berkeley) 6/29/88
        !            18:  */
        !            19: 
        !            20: /*
        !            21:  * Constants and Structures defined by the Xerox Network Software
        !            22:  * per "Internet Transport Protocols", XSIS 028112, December 1981
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  * Protocols
        !            27:  */
        !            28: #define NSPROTO_RI     1               /* Routing Information */
        !            29: #define NSPROTO_ECHO   2               /* Echo Protocol */
        !            30: #define NSPROTO_ERROR  3               /* Error Protocol */
        !            31: #define NSPROTO_PE     4               /* Packet Exchange */
        !            32: #define NSPROTO_SPP    5               /* Sequenced Packet */
        !            33: #define NSPROTO_RAW    255             /* Placemarker*/
        !            34: #define NSPROTO_MAX    256             /* Placemarker*/
        !            35: 
        !            36: 
        !            37: /*
        !            38:  * Port/Socket numbers: network standard functions
        !            39:  */
        !            40: 
        !            41: #define NSPORT_RI      1               /* Routing Information */
        !            42: #define NSPORT_ECHO    2               /* Echo */
        !            43: #define NSPORT_RE      3               /* Router Error */
        !            44: 
        !            45: /*
        !            46:  * Ports < NSPORT_RESERVED are reserved for priveleged
        !            47:  * processes (e.g. root).
        !            48:  */
        !            49: #define NSPORT_RESERVED                3000
        !            50: 
        !            51: /* flags passed to ns_output as last parameter */
        !            52: 
        !            53: #define        NS_FORWARDING           0x1     /* most of idp header exists */
        !            54: #define        NS_ROUTETOIF            0x10    /* same as SO_DONTROUTE */
        !            55: #define        NS_ALLOWBROADCAST       SO_BROADCAST    /* can send broadcast packets */
        !            56: 
        !            57: #define NS_MAXHOPS             15
        !            58: 
        !            59: /* flags passed to get/set socket option */
        !            60: #define        SO_HEADERS_ON_INPUT     1
        !            61: #define        SO_HEADERS_ON_OUTPUT    2
        !            62: #define        SO_DEFAULT_HEADERS      3
        !            63: #define        SO_LAST_HEADER          4
        !            64: #define        SO_NSIP_ROUTE           5
        !            65: #define SO_SEQNO               6
        !            66: #define        SO_ALL_PACKETS          7
        !            67: #define SO_MTU                 8
        !            68: 
        !            69: 
        !            70: /*
        !            71:  * NS addressing
        !            72:  */
        !            73: union ns_host {
        !            74:        u_char  c_host[6];
        !            75:        u_short s_host[3];
        !            76: };
        !            77: 
        !            78: union ns_net {
        !            79:        u_char  c_net[4];
        !            80:        u_short s_net[2];
        !            81: };
        !            82: 
        !            83: union ns_net_u {
        !            84:        union ns_net    net_e;
        !            85:        u_long          long_e;
        !            86: };
        !            87: 
        !            88: struct ns_addr {
        !            89:        union ns_net    x_net;
        !            90:        union ns_host   x_host;
        !            91:        u_short x_port;
        !            92: };
        !            93: 
        !            94: /*
        !            95:  * Socket address, Xerox style
        !            96:  */
        !            97: struct sockaddr_ns {
        !            98:        u_short         sns_family;
        !            99:        struct ns_addr  sns_addr;
        !           100:        char            sns_zero[2];
        !           101: };
        !           102: #define sns_port sns_addr.x_port
        !           103: 
        !           104: #ifdef vax
        !           105: #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
        !           106: #endif
        !           107: #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
        !           108:                                        ((a).s_net[1]==(b).s_net[1]))
        !           109: #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
        !           110: #define satons_addr(sa)        (((struct sockaddr_ns *)&(sa))->sns_addr)
        !           111: #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
        !           112:        (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
        !           113: #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
        !           114: #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
        !           115:        ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
        !           116: 
        !           117: #ifdef KERNEL
        !           118: extern struct domain nsdomain;
        !           119: union ns_host ns_thishost;
        !           120: union ns_host ns_zerohost;
        !           121: union ns_host ns_broadhost;
        !           122: union ns_net ns_zeronet;
        !           123: union ns_net ns_broadnet;
        !           124: u_short ns_cksum();
        !           125: #endif

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