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Annotation of Net2/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, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)ns.h        7.8 (Berkeley) 2/22/91
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * Constants and Structures defined by the Xerox Network Software
        !            38:  * per "Internet Transport Protocols", XSIS 028112, December 1981
        !            39:  */
        !            40: 
        !            41: /*
        !            42:  * Protocols
        !            43:  */
        !            44: #define NSPROTO_RI     1               /* Routing Information */
        !            45: #define NSPROTO_ECHO   2               /* Echo Protocol */
        !            46: #define NSPROTO_ERROR  3               /* Error Protocol */
        !            47: #define NSPROTO_PE     4               /* Packet Exchange */
        !            48: #define NSPROTO_SPP    5               /* Sequenced Packet */
        !            49: #define NSPROTO_RAW    255             /* Placemarker*/
        !            50: #define NSPROTO_MAX    256             /* Placemarker*/
        !            51: 
        !            52: 
        !            53: /*
        !            54:  * Port/Socket numbers: network standard functions
        !            55:  */
        !            56: 
        !            57: #define NSPORT_RI      1               /* Routing Information */
        !            58: #define NSPORT_ECHO    2               /* Echo */
        !            59: #define NSPORT_RE      3               /* Router Error */
        !            60: 
        !            61: /*
        !            62:  * Ports < NSPORT_RESERVED are reserved for priveleged
        !            63:  * processes (e.g. root).
        !            64:  */
        !            65: #define NSPORT_RESERVED                3000
        !            66: 
        !            67: /* flags passed to ns_output as last parameter */
        !            68: 
        !            69: #define        NS_FORWARDING           0x1     /* most of idp header exists */
        !            70: #define        NS_ROUTETOIF            0x10    /* same as SO_DONTROUTE */
        !            71: #define        NS_ALLOWBROADCAST       SO_BROADCAST    /* can send broadcast packets */
        !            72: 
        !            73: #define NS_MAXHOPS             15
        !            74: 
        !            75: /* flags passed to get/set socket option */
        !            76: #define        SO_HEADERS_ON_INPUT     1
        !            77: #define        SO_HEADERS_ON_OUTPUT    2
        !            78: #define        SO_DEFAULT_HEADERS      3
        !            79: #define        SO_LAST_HEADER          4
        !            80: #define        SO_NSIP_ROUTE           5
        !            81: #define SO_SEQNO               6
        !            82: #define        SO_ALL_PACKETS          7
        !            83: #define SO_MTU                 8
        !            84: 
        !            85: 
        !            86: /*
        !            87:  * NS addressing
        !            88:  */
        !            89: union ns_host {
        !            90:        u_char  c_host[6];
        !            91:        u_short s_host[3];
        !            92: };
        !            93: 
        !            94: union ns_net {
        !            95:        u_char  c_net[4];
        !            96:        u_short s_net[2];
        !            97: };
        !            98: 
        !            99: union ns_net_u {
        !           100:        union ns_net    net_e;
        !           101:        u_long          long_e;
        !           102: };
        !           103: 
        !           104: struct ns_addr {
        !           105:        union ns_net    x_net;
        !           106:        union ns_host   x_host;
        !           107:        u_short x_port;
        !           108: };
        !           109: 
        !           110: /*
        !           111:  * Socket address, Xerox style
        !           112:  */
        !           113: struct sockaddr_ns {
        !           114:        u_char          sns_len;
        !           115:        u_char          sns_family;
        !           116:        struct ns_addr  sns_addr;
        !           117:        char            sns_zero[2];
        !           118: };
        !           119: #define sns_port sns_addr.x_port
        !           120: 
        !           121: #ifdef vax
        !           122: #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
        !           123: #endif
        !           124: #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
        !           125:                                        ((a).s_net[1]==(b).s_net[1]))
        !           126: #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
        !           127: #define satons_addr(sa)        (((struct sockaddr_ns *)&(sa))->sns_addr)
        !           128: #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
        !           129:        (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
        !           130: #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
        !           131: #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
        !           132:        ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
        !           133: 
        !           134: #ifdef KERNEL
        !           135: extern struct domain nsdomain;
        !           136: union ns_host ns_thishost;
        !           137: union ns_host ns_zerohost;
        !           138: union ns_host ns_broadhost;
        !           139: union ns_net ns_zeronet;
        !           140: union ns_net ns_broadnet;
        !           141: u_short ns_cksum();
        !           142: #else
        !           143: 
        !           144: #include <sys/cdefs.h>
        !           145: 
        !           146: __BEGIN_DECLS
        !           147: extern struct ns_addr ns_addr __P((const char *));
        !           148: extern char *ns_ntoa __P((struct ns_addr));
        !           149: __END_DECLS
        !           150: 
        !           151: #endif

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