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jeremybenn |
/*
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* Copyright (c) 1984, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ns_error.h 8.1 (Berkeley) 6/10/93
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* $FreeBSD: src/sys/netns/ns_error.h,v 1.10 1999/12/29 04:46:19 peter Exp $
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*/
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#ifndef _NETNS_NS_ERROR_H_
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#define _NETNS_NS_ERROR_H_
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/*
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* Xerox NS error messages
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*/
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struct ns_errp {
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u_short ns_err_num; /* Error Number */
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u_short ns_err_param; /* Error Parameter */
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struct idp ns_err_idp; /* Initial segment of offending
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packet */
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u_char ns_err_lev2[12]; /* at least this much higher
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level protocol */
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};
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struct ns_epidp {
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struct idp ns_ep_idp;
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struct ns_errp ns_ep_errp;
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};
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#define NS_ERR_UNSPEC 0 /* Unspecified Error detected at dest. */
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#define NS_ERR_BADSUM 1 /* Bad Checksum detected at dest */
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#define NS_ERR_NOSOCK 2 /* Specified socket does not exist at dest*/
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#define NS_ERR_FULLUP 3 /* Dest. refuses packet due to resource lim.*/
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#define NS_ERR_UNSPEC_T 0x200 /* Unspec. Error occured before reaching dest*/
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#define NS_ERR_BADSUM_T 0x201 /* Bad Checksum detected in transit */
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#define NS_ERR_UNREACH_HOST 0x202 /* Dest cannot be reached from here*/
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#define NS_ERR_TOO_OLD 0x203 /* Packet x'd 15 routers without delivery*/
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#define NS_ERR_TOO_BIG 0x204 /* Packet too large to be forwarded through
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some intermediate gateway. The error
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parameter field contains the max packet
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size that can be accommodated */
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#define NS_ERR_MAX 20
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/*
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* Variables related to this implementation
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* of the network systems error message protocol.
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*/
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struct ns_errstat {
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/* statistics related to ns_err packets generated */
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int ns_es_error; /* # of calls to ns_error */
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int ns_es_oldshort; /* no error 'cuz old ip too short */
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int ns_es_oldns_err; /* no error 'cuz old was ns_err */
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int ns_es_outhist[NS_ERR_MAX];
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/* statistics related to input messages processed */
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int ns_es_badcode; /* ns_err_code out of range */
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int ns_es_tooshort; /* packet < IDP_MINLEN */
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int ns_es_checksum; /* bad checksum */
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int ns_es_badlen; /* calculated bound mismatch */
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int ns_es_reflect; /* number of responses */
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int ns_es_inhist[NS_ERR_MAX];
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u_short ns_es_codes[NS_ERR_MAX];/* which error code for outhist
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since we might not know all */
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};
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#ifdef _KERNEL
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struct ns_errstat ns_errstat;
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#endif
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#endif
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