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

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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