1 /* 2 * Copyright (c) 1984, 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)ns_error.h 7.4 (Berkeley) 06/29/88 18 */ 19 20 /* 21 * Xerox NS error messages 22 */ 23 24 struct ns_errp { 25 u_short ns_err_num; /* Error Number */ 26 u_short ns_err_param; /* Error Parameter */ 27 struct idp ns_err_idp; /* Initial segment of offending 28 packet */ 29 u_char ns_err_lev2[12]; /* at least this much higher 30 level protocol */ 31 }; 32 struct ns_epidp { 33 struct idp ns_ep_idp; 34 struct ns_errp ns_ep_errp; 35 }; 36 37 #define NS_ERR_UNSPEC 0 /* Unspecified Error detected at dest. */ 38 #define NS_ERR_BADSUM 1 /* Bad Checksum detected at dest */ 39 #define NS_ERR_NOSOCK 2 /* Specified socket does not exist at dest*/ 40 #define NS_ERR_FULLUP 3 /* Dest. refuses packet due to resource lim.*/ 41 #define NS_ERR_UNSPEC_T 0x200 /* Unspec. Error occured before reaching dest*/ 42 #define NS_ERR_BADSUM_T 0x201 /* Bad Checksum detected in transit */ 43 #define NS_ERR_UNREACH_HOST 0x202 /* Dest cannot be reached from here*/ 44 #define NS_ERR_TOO_OLD 0x203 /* Packet x'd 15 routers without delivery*/ 45 #define NS_ERR_TOO_BIG 0x204 /* Packet too large to be forwarded through 46 some intermediate gateway. The error 47 parameter field contains the max packet 48 size that can be accommodated */ 49 #define NS_ERR_MAX 20 50 51 /* 52 * Variables related to this implementation 53 * of the network systems error message protocol. 54 */ 55 struct ns_errstat { 56 /* statistics related to ns_err packets generated */ 57 int ns_es_error; /* # of calls to ns_error */ 58 int ns_es_oldshort; /* no error 'cuz old ip too short */ 59 int ns_es_oldns_err; /* no error 'cuz old was ns_err */ 60 int ns_es_outhist[NS_ERR_MAX]; 61 /* statistics related to input messages processed */ 62 int ns_es_badcode; /* ns_err_code out of range */ 63 int ns_es_tooshort; /* packet < IDP_MINLEN */ 64 int ns_es_checksum; /* bad checksum */ 65 int ns_es_badlen; /* calculated bound mismatch */ 66 int ns_es_reflect; /* number of responses */ 67 int ns_es_inhist[NS_ERR_MAX]; 68 u_short ns_es_codes[NS_ERR_MAX];/* which error code for outhist 69 since we might not know all */ 70 }; 71 72 #ifdef KERNEL 73 struct ns_errstat ns_errstat; 74 #endif 75