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Annotation of 43BSD/sys/netns/ns.h, revision 1.1.1.1

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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