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Annotation of XNU/bsd/netns/ns.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1984, 1985, 1986, 1987, 1993
        !            24:  *     The Regents of the University of California.  All rights reserved.
        !            25:  *
        !            26:  * Redistribution and use in source and binary forms, with or without
        !            27:  * modification, are permitted provided that the following conditions
        !            28:  * are met:
        !            29:  * 1. Redistributions of source code must retain the above copyright
        !            30:  *    notice, this list of conditions and the following disclaimer.
        !            31:  * 2. Redistributions in binary form must reproduce the above copyright
        !            32:  *    notice, this list of conditions and the following disclaimer in the
        !            33:  *    documentation and/or other materials provided with the distribution.
        !            34:  * 3. All advertising materials mentioning features or use of this software
        !            35:  *    must display the following acknowledgement:
        !            36:  *     This product includes software developed by the University of
        !            37:  *     California, Berkeley and its contributors.
        !            38:  * 4. Neither the name of the University nor the names of its contributors
        !            39:  *    may be used to endorse or promote products derived from this software
        !            40:  *    without specific prior written permission.
        !            41:  *
        !            42:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            43:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            44:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            45:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            46:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            47:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            48:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            49:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            50:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            51:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            52:  * SUCH DAMAGE.
        !            53:  *
        !            54:  *     @(#)ns.h        8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: /*
        !            58:  * Constants and Structures defined by the Xerox Network Software
        !            59:  * per "Internet Transport Protocols", XSIS 028112, December 1981
        !            60:  */
        !            61: 
        !            62: /*
        !            63:  * Protocols
        !            64:  */
        !            65: #define NSPROTO_RI     1               /* Routing Information */
        !            66: #define NSPROTO_ECHO   2               /* Echo Protocol */
        !            67: #define NSPROTO_ERROR  3               /* Error Protocol */
        !            68: #define NSPROTO_PE     4               /* Packet Exchange */
        !            69: #define NSPROTO_SPP    5               /* Sequenced Packet */
        !            70: #define NSPROTO_RAW    255             /* Placemarker*/
        !            71: #define NSPROTO_MAX    256             /* Placemarker*/
        !            72: 
        !            73: 
        !            74: /*
        !            75:  * Port/Socket numbers: network standard functions
        !            76:  */
        !            77: 
        !            78: #define NSPORT_RI      1               /* Routing Information */
        !            79: #define NSPORT_ECHO    2               /* Echo */
        !            80: #define NSPORT_RE      3               /* Router Error */
        !            81: 
        !            82: /*
        !            83:  * Ports < NSPORT_RESERVED are reserved for priveleged
        !            84:  * processes (e.g. root).
        !            85:  */
        !            86: #define NSPORT_RESERVED                3000
        !            87: 
        !            88: /* flags passed to ns_output as last parameter */
        !            89: 
        !            90: #define        NS_FORWARDING           0x1     /* most of idp header exists */
        !            91: #define        NS_ROUTETOIF            0x10    /* same as SO_DONTROUTE */
        !            92: #define        NS_ALLOWBROADCAST       SO_BROADCAST    /* can send broadcast packets */
        !            93: 
        !            94: #define NS_MAXHOPS             15
        !            95: 
        !            96: /* flags passed to get/set socket option */
        !            97: #define        SO_HEADERS_ON_INPUT     1
        !            98: #define        SO_HEADERS_ON_OUTPUT    2
        !            99: #define        SO_DEFAULT_HEADERS      3
        !           100: #define        SO_LAST_HEADER          4
        !           101: #define        SO_NSIP_ROUTE           5
        !           102: #define SO_SEQNO               6
        !           103: #define        SO_ALL_PACKETS          7
        !           104: #define SO_MTU                 8
        !           105: 
        !           106: 
        !           107: /*
        !           108:  * NS addressing
        !           109:  */
        !           110: union ns_host {
        !           111:        u_char  c_host[6];
        !           112:        u_short s_host[3];
        !           113: };
        !           114: 
        !           115: union ns_net {
        !           116:        u_char  c_net[4];
        !           117:        u_short s_net[2];
        !           118: };
        !           119: 
        !           120: union ns_net_u {
        !           121:        union ns_net    net_e;
        !           122:        u_long          long_e;
        !           123: };
        !           124: 
        !           125: struct ns_addr {
        !           126:        union ns_net    x_net;
        !           127:        union ns_host   x_host;
        !           128:        u_short x_port;
        !           129: };
        !           130: 
        !           131: /*
        !           132:  * Socket address, Xerox style
        !           133:  */
        !           134: struct sockaddr_ns {
        !           135:        u_char          sns_len;
        !           136:        u_char          sns_family;
        !           137:        struct ns_addr  sns_addr;
        !           138:        char            sns_zero[2];
        !           139: };
        !           140: #define sns_port sns_addr.x_port
        !           141: 
        !           142: #ifdef vax
        !           143: #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
        !           144: #endif
        !           145: #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
        !           146:                                        ((a).s_net[1]==(b).s_net[1]))
        !           147: #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
        !           148: #define satons_addr(sa)        (((struct sockaddr_ns *)&(sa))->sns_addr)
        !           149: #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
        !           150:        (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
        !           151: #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
        !           152: #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
        !           153:        ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
        !           154: 
        !           155: #ifdef KERNEL
        !           156: extern struct domain nsdomain;
        !           157: union ns_host ns_thishost;
        !           158: union ns_host ns_zerohost;
        !           159: union ns_host ns_broadhost;
        !           160: union ns_net ns_zeronet;
        !           161: union ns_net ns_broadnet;
        !           162: u_short ns_cksum();
        !           163: #else
        !           164: 
        !           165: #include <sys/cdefs.h>
        !           166: 
        !           167: __BEGIN_DECLS
        !           168: extern struct ns_addr ns_addr __P((const char *));
        !           169: extern char *ns_ntoa __P((struct ns_addr));
        !           170: __END_DECLS
        !           171: 
        !           172: #endif

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