1*23207Smckusick /* 2*23207Smckusick * Copyright (c) 1982 Regents of the University of California. 3*23207Smckusick * All rights reserved. The Berkeley software License Agreement 4*23207Smckusick * specifies the terms and conditions for redistribution. 5*23207Smckusick * 6*23207Smckusick * @(#)ns_error.h 6.2 (Berkeley) 06/08/85 7*23207Smckusick */ 821484Ssklower 921484Ssklower /* 1021484Ssklower * Xerox NS error messages 1121484Ssklower */ 1221484Ssklower 1321484Ssklower struct ns_errp { 1421484Ssklower u_short ns_err_num; /* Error Number */ 1521484Ssklower u_short ns_err_param; /* Error Parameter */ 1621484Ssklower struct idp ns_err_idp; /* Initial segment of offending 1721484Ssklower packet */ 1821484Ssklower u_char ns_err_lev2[12]; /* at least this much higher 1921484Ssklower level protocol */ 2021484Ssklower }; 2121484Ssklower struct ns_epidp { 2221484Ssklower struct idp ns_ep_idp; 2321484Ssklower struct ns_errp ns_ep_errp; 2421484Ssklower }; 2521484Ssklower 2621484Ssklower #define NS_ERR_UNSPEC 0 /* Unspecified Error detected at dest. */ 2721484Ssklower #define NS_ERR_BADSUM 1 /* Bad Checksum detected at dest */ 2821484Ssklower #define NS_ERR_NOSOCK 2 /* Specified socket does not exist at dest*/ 2921484Ssklower #define NS_ERR_FULLUP 3 /* Dest. refuses packet due to resource lim.*/ 3021484Ssklower #define NS_ERR_UNSPEC_T 0x200 /* Unspec. Error occured before reaching dest*/ 3121484Ssklower #define NS_ERR_BADSUM_T 0x201 /* Bad Checksum detected in transit */ 3221484Ssklower #define NS_ERR_UNREACH_HOST 0x202 /* Dest cannot be reached from here*/ 3321484Ssklower #define NS_ERR_TOO_OLD 0x203 /* Packet x'd 15 routers without delivery*/ 3421484Ssklower #define NS_ERR_TOO_BIG 0x204 /* Packet too large to be forwarded through 3521484Ssklower some intermediate gateway. The error 3621484Ssklower parameter field contains the max packet 3721484Ssklower size that can be accommodated */ 3821484Ssklower #define NS_ERR_ATHOST 4 3921484Ssklower #define NS_ERR_ENROUTE 5 4021484Ssklower #define NS_ERR_MAX (NS_ERR_ATHOST + NS_ERR_ENROUTE + 1) 4121484Ssklower #define ns_err_x(c) (((c)&0x200) ? ((c) - 0x200 + NS_ERR_ATHOST) : c ) 4221484Ssklower 4321484Ssklower /* 4421484Ssklower * Variables related to this implementation 4521484Ssklower * of the network systems error message protocol. 4621484Ssklower */ 4721484Ssklower struct ns_errstat { 4821484Ssklower /* statistics related to ns_err packets generated */ 4921484Ssklower int ns_es_error; /* # of calls to ns_error */ 5021484Ssklower int ns_es_oldshort; /* no error 'cuz old ip too short */ 5121484Ssklower int ns_es_oldns_err; /* no error 'cuz old was ns_err */ 5221484Ssklower int ns_es_outhist[NS_ERR_MAX]; 5321484Ssklower /* statistics related to input messages processed */ 5421484Ssklower int ns_es_badcode; /* ns_err_code out of range */ 5521484Ssklower int ns_es_tooshort; /* packet < IDP_MINLEN */ 5621484Ssklower int ns_es_checksum; /* bad checksum */ 5721484Ssklower int ns_es_badlen; /* calculated bound mismatch */ 5821484Ssklower int ns_es_reflect; /* number of responses */ 5921484Ssklower int ns_es_inhist[NS_ERR_MAX]; 6021484Ssklower }; 6121484Ssklower 6221484Ssklower #ifdef KERNEL 6321484Ssklower struct ns_errstat ns_errstat; 6421484Ssklower #endif 65