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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1984, 1985, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)ns.h        7.1 (Berkeley) 6/5/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Constants and Structures defined by the Xerox Network Software
        !            11:  * per "Internet Transport Protocols", XSIS 028112, December 1981
        !            12:  */
        !            13: 
        !            14: /*
        !            15:  * Protocols
        !            16:  */
        !            17: #define NSPROTO_RI     1               /* Routing Information */
        !            18: #define NSPROTO_ECHO   2               /* Echo Protocol */
        !            19: #define NSPROTO_ERROR  3               /* Error Protocol */
        !            20: #define NSPROTO_PE     4               /* Packet Exchange */
        !            21: #define NSPROTO_SPP    5               /* Sequenced Packet */
        !            22: #define NSPROTO_RAW    255             /* Placemarker*/
        !            23: #define NSPROTO_MAX    256             /* Placemarker*/
        !            24: 
        !            25: 
        !            26: /*
        !            27:  * Port/Socket numbers: network standard functions
        !            28:  */
        !            29: 
        !            30: #define NSPORT_RI      1               /* Routing Information */
        !            31: #define NSPORT_ECHO    2               /* Echo */
        !            32: #define NSPORT_RE      3               /* Router Error */
        !            33: 
        !            34: /*
        !            35:  * Ports < NSPORT_RESERVED are reserved for priveleged
        !            36:  * processes (e.g. root).
        !            37:  */
        !            38: #define NSPORT_RESERVED                3000
        !            39: 
        !            40: /* flags passed to ns_output as last parameter */
        !            41: 
        !            42: #define        NS_FORWARDING           0x1     /* most of idp header exists */
        !            43: #define        NS_ROUTETOIF            0x10    /* same as SO_DONTROUTE */
        !            44: #define        NS_ALLOWBROADCAST       SO_BROADCAST    /* can send broadcast packets */
        !            45: 
        !            46: #define NS_MAXHOPS             15
        !            47: 
        !            48: /* flags passed to get/set socket option */
        !            49: #define        SO_HEADERS_ON_INPUT     1
        !            50: #define        SO_HEADERS_ON_OUTPUT    2
        !            51: #define        SO_DEFAULT_HEADERS      3
        !            52: #define        SO_LAST_HEADER          4
        !            53: #define        SO_NSIP_ROUTE           5
        !            54: #define SO_SEQNO               6
        !            55: #define        SO_ALL_PACKETS          7
        !            56: #define SO_MTU                 8
        !            57: 
        !            58: 
        !            59: /*
        !            60:  * NS addressing
        !            61:  */
        !            62: union ns_host {
        !            63:        u_char  c_host[6];
        !            64:        u_short s_host[3];
        !            65: };
        !            66: 
        !            67: union ns_net {
        !            68:        u_char  c_net[4];
        !            69:        u_short s_net[2];
        !            70: };
        !            71: 
        !            72: union ns_net_u {
        !            73:        union ns_net    net_e;
        !            74:        u_long          long_e;
        !            75: };
        !            76: 
        !            77: struct ns_addr {
        !            78:        union ns_net    x_net;
        !            79:        union ns_host   x_host;
        !            80:        u_short x_port;
        !            81: };
        !            82: 
        !            83: /*
        !            84:  * Socket address, Xerox style
        !            85:  */
        !            86: struct sockaddr_ns {
        !            87:        u_short         sns_family;
        !            88:        struct ns_addr  sns_addr;
        !            89:        char            sns_zero[2];
        !            90: };
        !            91: #define sns_port sns_addr.x_port
        !            92: 
        !            93: #ifdef vax
        !            94: #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
        !            95: #endif
        !            96: #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
        !            97:                                        ((a).s_net[1]==(b).s_net[1]))
        !            98: #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
        !            99: #define satons_addr(sa)        (((struct sockaddr_ns *)&(sa))->sns_addr)
        !           100: #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
        !           101:        (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
        !           102: #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
        !           103: #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
        !           104:        ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
        !           105: 
        !           106: #if !defined(vax) && !defined(ntohl) && !defined(lint)
        !           107: /*
        !           108:  * Macros for number representation conversion.
        !           109:  */
        !           110: #define        ntohl(x)        (x)
        !           111: #define        ntohs(x)        (x)
        !           112: #define        htonl(x)        (x)
        !           113: #define        htons(x)        (x)
        !           114: #endif
        !           115: 
        !           116: #if !defined(ntohl) && (defined(vax) || defined(lint))
        !           117: u_short        ntohs(), htons();
        !           118: u_long ntohl(), htonl();
        !           119: #endif
        !           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: #endif

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