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Annotation of XNU/bsd/netns/ns_error.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, 1988, 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_error.h  8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: /*
        !            58:  * Xerox NS error messages
        !            59:  */
        !            60: 
        !            61: struct ns_errp {
        !            62:        u_short         ns_err_num;             /* Error Number */
        !            63:        u_short         ns_err_param;           /* Error Parameter */
        !            64:        struct idp      ns_err_idp;             /* Initial segment of offending
        !            65:                                                   packet */
        !            66:        u_char          ns_err_lev2[12];        /* at least this much higher
        !            67:                                                   level protocol */
        !            68: };
        !            69: struct  ns_epidp {
        !            70:        struct idp ns_ep_idp;
        !            71:        struct ns_errp ns_ep_errp;
        !            72: };
        !            73: 
        !            74: #define        NS_ERR_UNSPEC   0       /* Unspecified Error detected at dest. */
        !            75: #define        NS_ERR_BADSUM   1       /* Bad Checksum detected at dest */
        !            76: #define        NS_ERR_NOSOCK   2       /* Specified socket does not exist at dest*/
        !            77: #define        NS_ERR_FULLUP   3       /* Dest. refuses packet due to resource lim.*/
        !            78: #define        NS_ERR_UNSPEC_T 0x200   /* Unspec. Error occured before reaching dest*/
        !            79: #define        NS_ERR_BADSUM_T 0x201   /* Bad Checksum detected in transit */
        !            80: #define        NS_ERR_UNREACH_HOST     0x202   /* Dest cannot be reached from here*/
        !            81: #define        NS_ERR_TOO_OLD  0x203   /* Packet x'd 15 routers without delivery*/
        !            82: #define        NS_ERR_TOO_BIG  0x204   /* Packet too large to be forwarded through
        !            83:                                   some intermediate gateway.  The error
        !            84:                                   parameter field contains the max packet
        !            85:                                   size that can be accommodated */
        !            86: #define NS_ERR_MAX 20
        !            87: 
        !            88: /*
        !            89:  * Variables related to this implementation
        !            90:  * of the network systems error message protocol.
        !            91:  */
        !            92: struct ns_errstat {
        !            93: /* statistics related to ns_err packets generated */
        !            94:        int     ns_es_error;            /* # of calls to ns_error */
        !            95:        int     ns_es_oldshort;         /* no error 'cuz old ip too short */
        !            96:        int     ns_es_oldns_err;        /* no error 'cuz old was ns_err */
        !            97:        int     ns_es_outhist[NS_ERR_MAX];
        !            98: /* statistics related to input messages processed */
        !            99:        int     ns_es_badcode;          /* ns_err_code out of range */
        !           100:        int     ns_es_tooshort;         /* packet < IDP_MINLEN */
        !           101:        int     ns_es_checksum;         /* bad checksum */
        !           102:        int     ns_es_badlen;           /* calculated bound mismatch */
        !           103:        int     ns_es_reflect;          /* number of responses */
        !           104:        int     ns_es_inhist[NS_ERR_MAX];
        !           105:        u_short ns_es_codes[NS_ERR_MAX];/* which error code for outhist
        !           106:                                           since we might not know all */
        !           107: };
        !           108: 
        !           109: #ifdef KERNEL
        !           110: struct ns_errstat ns_errstat;
        !           111: #endif

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