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