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Annotation of XNU/bsd/netiso/eonvar.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) 1991, 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:  *     @(#)eonvar.h    8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: /***********************************************************
        !            58:                Copyright IBM Corporation 1987
        !            59: 
        !            60:                       All Rights Reserved
        !            61: 
        !            62: Permission to use, copy, modify, and distribute this software and its 
        !            63: documentation for any purpose and without fee is hereby granted, 
        !            64: provided that the above copyright notice appear in all copies and that
        !            65: both that copyright notice and this permission notice appear in 
        !            66: supporting documentation, and that the name of IBM not be
        !            67: used in advertising or publicity pertaining to distribution of the
        !            68: software without specific, written prior permission.  
        !            69: 
        !            70: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            71: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            72: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            73: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            74: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            75: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            76: SOFTWARE.
        !            77: 
        !            78: ******************************************************************/
        !            79: 
        !            80: /*
        !            81:  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
        !            82:  */
        !            83: 
        !            84: #define EON_986_VERSION 0x3
        !            85: #define EON_VERSION 0x1
        !            86: 
        !            87: #define EON_CACHESIZE 30
        !            88: 
        !            89: #define E_FREE         1
        !            90: #define E_LINK 2
        !            91: #define E_ES   3
        !            92: #define E_IS   4
        !            93:  
        !            94: 
        !            95: /* 
        !            96:  * this overlays a sockaddr_iso
        !            97:  */
        !            98: 
        !            99: struct sockaddr_eon {
        !           100:        u_char                  seon_len;       /* Length */
        !           101:        u_char                  seon_family;    /* AF_ISO */
        !           102:        u_char                  seon_status;    /* overlays session suffixlen */
        !           103: #define EON_ESLINK_UP          0x1
        !           104: #define EON_ESLINK_DOWN                0x2
        !           105: #define EON_ISLINK_UP          0x10
        !           106: #define EON_ISLINK_DOWN                0x20
        !           107: /* no change is neither up or down */
        !           108:        u_char                  seon_pad1;      /* 0, overlays tsfxlen */
        !           109:        u_char                  seon_adrlen;
        !           110:        u_char                  seon_afi;               /* 47 */
        !           111:        u_char                  seon_idi[2];    /* 0006 */
        !           112:        u_char                  seon_vers;              /* 03 */
        !           113:        u_char                  seon_glbnum[2]; /* see RFC 1069 */
        !           114:        u_char                  seon_RDN[2];    /* see RFC 1070 */
        !           115:        u_char                  seon_pad2[3];   /* see RFC 1070 */
        !           116:        u_char                  seon_LAREA[2];  /* see RFC 1070 */
        !           117:        u_char                  seon_pad3[2];   /* see RFC 1070 */
        !           118:                /* right now ip addr is  aligned  -- be careful --
        !           119:                 * future revisions may have it u_char[4]
        !           120:                 */
        !           121:        u_int                   seon_ipaddr;    /* a.b.c.d */
        !           122:        u_char                  seon_protoid;   /* NSEL */
        !           123: };
        !           124: 
        !           125: #ifdef EON_TEMPLATE
        !           126: struct sockaddr_eon eon_template = {
        !           127:        sizeof (eon_template), AF_ISO, 0, 0, 0x14,
        !           128:        0x47, 0x0, 0x6, 0x3, 0
        !           129: };
        !           130: #endif
        !           131: 
        !           132: #define DOWNBITS ( EON_ESLINK_DOWN | EON_ISLINK_DOWN )
        !           133: #define UPBITS ( EON_ESLINK_UP | EON_ISLINK_UP )
        !           134: 
        !           135: #define        SIOCSEONCORE _IOWR('i',10, struct iso_ifreq) /* EON core member */
        !           136: #define        SIOCGEONCORE _IOWR('i',11, struct iso_ifreq) /* EON core member */
        !           137: 
        !           138: struct eon_hdr {
        !           139:        u_char  eonh_vers; /* value 1 */
        !           140:        u_char  eonh_class;  /* address multicast class, below */
        !           141: #define                EON_NORMAL_ADDR         0x0
        !           142: #define                EON_MULTICAST_ES        0x1
        !           143: #define                EON_MULTICAST_IS        0x2
        !           144: #define                EON_BROADCAST           0x3
        !           145:        u_short eonh_csum;  /* osi checksum (choke)*/
        !           146: };
        !           147: struct eon_iphdr {
        !           148:        struct  ip      ei_ip;
        !           149:        struct  eon_hdr ei_eh;
        !           150: };
        !           151: #define EONIPLEN (sizeof(struct eon_hdr) + sizeof(struct ip))
        !           152: 
        !           153: /* stole these 2 fields of the flags for I-am-ES and I-am-IS */
        !           154: #define        IFF_ES  0x400
        !           155: #define        IFF_IS  0x800
        !           156: 
        !           157: struct eon_stat {
        !           158:        int     es_in_multi_es;
        !           159:        int     es_in_multi_is;
        !           160:        int     es_in_broad;
        !           161:        int     es_in_normal;
        !           162:        int     es_out_multi_es;
        !           163:        int     es_out_multi_is;
        !           164:        int     es_out_broad;
        !           165:        int     es_out_normal;
        !           166:        int     es_ipout;
        !           167: 
        !           168:        int     es_icmp[PRC_NCMDS];
        !           169:        /* errors */
        !           170:        int     es_badcsum;
        !           171:        int     es_badhdr;
        !           172: } eonstat;
        !           173: 
        !           174: #undef IncStat
        !           175: #define IncStat(xxx) eonstat.xxx++
        !           176: 
        !           177: typedef struct qhdr {
        !           178:        struct qhdr *link, *rlink;
        !           179: } *queue_t;
        !           180: 
        !           181: struct eon_llinfo {
        !           182:        struct  qhdr el_qhdr;           /* keep all in a list */
        !           183:        int     el_flags;               /* cache valid ? */
        !           184:        int     el_snpaoffset;          /* IP address contained in dst nsap */
        !           185:        struct  rtentry *el_rt;         /* back pointer to parent route */
        !           186:        struct  eon_iphdr el_ei;        /* precomputed portion of hdr */
        !           187:        struct  route el_iproute;       /* if direct route cache IP info */
        !           188:                                        /* if gateway, cache secondary route */
        !           189: };
        !           190: #define el_iphdr el_ei.ei_ip
        !           191: #define el_eonhdr el_ei.ei_eh

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