projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 8ae0e4b4 KM |
1 | /* |
| 2 | * Copyright (c) 1982 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 6 | * @(#)ns_error.h 6.2 (Berkeley) %G% | |
| 7 | */ | |
| 95eaf934 KS |
8 | |
| 9 | /* | |
| 10 | * Xerox NS error messages | |
| 11 | */ | |
| 12 | ||
| 13 | struct ns_errp { | |
| 14 | u_short ns_err_num; /* Error Number */ | |
| 15 | u_short ns_err_param; /* Error Parameter */ | |
| 16 | struct idp ns_err_idp; /* Initial segment of offending | |
| 17 | packet */ | |
| 18 | u_char ns_err_lev2[12]; /* at least this much higher | |
| 19 | level protocol */ | |
| 20 | }; | |
| 21 | struct ns_epidp { | |
| 22 | struct idp ns_ep_idp; | |
| 23 | struct ns_errp ns_ep_errp; | |
| 24 | }; | |
| 25 | ||
| 26 | #define NS_ERR_UNSPEC 0 /* Unspecified Error detected at dest. */ | |
| 27 | #define NS_ERR_BADSUM 1 /* Bad Checksum detected at dest */ | |
| 28 | #define NS_ERR_NOSOCK 2 /* Specified socket does not exist at dest*/ | |
| 29 | #define NS_ERR_FULLUP 3 /* Dest. refuses packet due to resource lim.*/ | |
| 30 | #define NS_ERR_UNSPEC_T 0x200 /* Unspec. Error occured before reaching dest*/ | |
| 31 | #define NS_ERR_BADSUM_T 0x201 /* Bad Checksum detected in transit */ | |
| 32 | #define NS_ERR_UNREACH_HOST 0x202 /* Dest cannot be reached from here*/ | |
| 33 | #define NS_ERR_TOO_OLD 0x203 /* Packet x'd 15 routers without delivery*/ | |
| 34 | #define NS_ERR_TOO_BIG 0x204 /* Packet too large to be forwarded through | |
| 35 | some intermediate gateway. The error | |
| 36 | parameter field contains the max packet | |
| 37 | size that can be accommodated */ | |
| 38 | #define NS_ERR_ATHOST 4 | |
| 39 | #define NS_ERR_ENROUTE 5 | |
| 40 | #define NS_ERR_MAX (NS_ERR_ATHOST + NS_ERR_ENROUTE + 1) | |
| 41 | #define ns_err_x(c) (((c)&0x200) ? ((c) - 0x200 + NS_ERR_ATHOST) : c ) | |
| 42 | ||
| 43 | /* | |
| 44 | * Variables related to this implementation | |
| 45 | * of the network systems error message protocol. | |
| 46 | */ | |
| 47 | struct ns_errstat { | |
| 48 | /* statistics related to ns_err packets generated */ | |
| 49 | int ns_es_error; /* # of calls to ns_error */ | |
| 50 | int ns_es_oldshort; /* no error 'cuz old ip too short */ | |
| 51 | int ns_es_oldns_err; /* no error 'cuz old was ns_err */ | |
| 52 | int ns_es_outhist[NS_ERR_MAX]; | |
| 53 | /* statistics related to input messages processed */ | |
| 54 | int ns_es_badcode; /* ns_err_code out of range */ | |
| 55 | int ns_es_tooshort; /* packet < IDP_MINLEN */ | |
| 56 | int ns_es_checksum; /* bad checksum */ | |
| 57 | int ns_es_badlen; /* calculated bound mismatch */ | |
| 58 | int ns_es_reflect; /* number of responses */ | |
| 59 | int ns_es_inhist[NS_ERR_MAX]; | |
| 60 | }; | |
| 61 | ||
| 62 | #ifdef KERNEL | |
| 63 | struct ns_errstat ns_errstat; | |
| 64 | #endif |