1 /* 2 * Copyright (c) 1984, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ns_error.h 8.1 (Berkeley) 06/10/93 8 */ 9 10 /* 11 * Xerox NS error messages 12 */ 13 14 struct ns_errp { 15 u_short ns_err_num; /* Error Number */ 16 u_short ns_err_param; /* Error Parameter */ 17 struct idp ns_err_idp; /* Initial segment of offending 18 packet */ 19 u_char ns_err_lev2[12]; /* at least this much higher 20 level protocol */ 21 }; 22 struct ns_epidp { 23 struct idp ns_ep_idp; 24 struct ns_errp ns_ep_errp; 25 }; 26 27 #define NS_ERR_UNSPEC 0 /* Unspecified Error detected at dest. */ 28 #define NS_ERR_BADSUM 1 /* Bad Checksum detected at dest */ 29 #define NS_ERR_NOSOCK 2 /* Specified socket does not exist at dest*/ 30 #define NS_ERR_FULLUP 3 /* Dest. refuses packet due to resource lim.*/ 31 #define NS_ERR_UNSPEC_T 0x200 /* Unspec. Error occured before reaching dest*/ 32 #define NS_ERR_BADSUM_T 0x201 /* Bad Checksum detected in transit */ 33 #define NS_ERR_UNREACH_HOST 0x202 /* Dest cannot be reached from here*/ 34 #define NS_ERR_TOO_OLD 0x203 /* Packet x'd 15 routers without delivery*/ 35 #define NS_ERR_TOO_BIG 0x204 /* Packet too large to be forwarded through 36 some intermediate gateway. The error 37 parameter field contains the max packet 38 size that can be accommodated */ 39 #define NS_ERR_MAX 20 40 41 /* 42 * Variables related to this implementation 43 * of the network systems error message protocol. 44 */ 45 struct ns_errstat { 46 /* statistics related to ns_err packets generated */ 47 int ns_es_error; /* # of calls to ns_error */ 48 int ns_es_oldshort; /* no error 'cuz old ip too short */ 49 int ns_es_oldns_err; /* no error 'cuz old was ns_err */ 50 int ns_es_outhist[NS_ERR_MAX]; 51 /* statistics related to input messages processed */ 52 int ns_es_badcode; /* ns_err_code out of range */ 53 int ns_es_tooshort; /* packet < IDP_MINLEN */ 54 int ns_es_checksum; /* bad checksum */ 55 int ns_es_badlen; /* calculated bound mismatch */ 56 int ns_es_reflect; /* number of responses */ 57 int ns_es_inhist[NS_ERR_MAX]; 58 u_short ns_es_codes[NS_ERR_MAX];/* which error code for outhist 59 since we might not know all */ 60 }; 61 62 #ifdef KERNEL 63 struct ns_errstat ns_errstat; 64 #endif 65