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1.1 root 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) 6/29/88
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
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