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/contrib/bind9/lib/dns/result.c

https://bitbucket.org/freebsd/freebsd-head/
C | 281 lines | 208 code | 42 blank | 31 comment | 7 complexity | 14ecdc780012c458f2fd8cdd6e842123 MD5 | raw file
  1/*
  2 * Copyright (C) 2004, 2005, 2007-2012  Internet Systems Consortium, Inc. ("ISC")
  3 * Copyright (C) 1998-2003  Internet Software Consortium.
  4 *
  5 * Permission to use, copy, modify, and/or distribute this software for any
  6 * purpose with or without fee is hereby granted, provided that the above
  7 * copyright notice and this permission notice appear in all copies.
  8 *
  9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 15 * PERFORMANCE OF THIS SOFTWARE.
 16 */
 17
 18/* $Id$ */
 19
 20/*! \file */
 21
 22#include <config.h>
 23
 24#include <isc/once.h>
 25#include <isc/util.h>
 26
 27#include <dns/result.h>
 28#include <dns/lib.h>
 29
 30static const char *text[DNS_R_NRESULTS] = {
 31	"label too long",		       /*%< 0 DNS_R_LABELTOOLONG */
 32	"bad escape",			       /*%< 1 DNS_R_BADESCAPE */
 33	/*!
 34	 * Note that DNS_R_BADBITSTRING and DNS_R_BITSTRINGTOOLONG are
 35	 * deprecated.
 36	 */
 37	"bad bitstring",		       /*%< 2 DNS_R_BADBITSTRING */
 38	"bitstring too long",		       /*%< 3 DNS_R_BITSTRINGTOOLONG */
 39	"empty label",			       /*%< 4 DNS_R_EMPTYLABEL */
 40
 41	"bad dotted quad",		       /*%< 5 DNS_R_BADDOTTEDQUAD */
 42	"invalid NS owner name (wildcard)",    /*%< 6 DNS_R_INVALIDNS */
 43	"unknown class/type",		       /*%< 7 DNS_R_UNKNOWN */
 44	"bad label type",		       /*%< 8 DNS_R_BADLABELTYPE */
 45	"bad compression pointer",	       /*%< 9 DNS_R_BADPOINTER */
 46
 47	"too many hops",		       /*%< 10 DNS_R_TOOMANYHOPS */
 48	"disallowed (by application policy)",  /*%< 11 DNS_R_DISALLOWED */
 49	"extra input text",		       /*%< 12 DNS_R_EXTRATOKEN */
 50	"extra input data",		       /*%< 13 DNS_R_EXTRADATA */
 51	"text too long",		       /*%< 14 DNS_R_TEXTTOOLONG */
 52
 53	"not at top of zone",		       /*%< 15 DNS_R_NOTZONETOP */
 54	"syntax error",			       /*%< 16 DNS_R_SYNTAX */
 55	"bad checksum",			       /*%< 17 DNS_R_BADCKSUM */
 56	"bad IPv6 address",		       /*%< 18 DNS_R_BADAAAA */
 57	"no owner",			       /*%< 19 DNS_R_NOOWNER */
 58
 59	"no ttl",			       /*%< 20 DNS_R_NOTTL */
 60	"bad class",			       /*%< 21 DNS_R_BADCLASS */
 61	"name too long",		       /*%< 22 DNS_R_NAMETOOLONG */
 62	"partial match",		       /*%< 23 DNS_R_PARTIALMATCH */
 63	"new origin",			       /*%< 24 DNS_R_NEWORIGIN */
 64
 65	"unchanged",			       /*%< 25 DNS_R_UNCHANGED */
 66	"bad ttl",			       /*%< 26 DNS_R_BADTTL */
 67	"more data needed/to be rendered",     /*%< 27 DNS_R_NOREDATA */
 68	"continue",			       /*%< 28 DNS_R_CONTINUE */
 69	"delegation",			       /*%< 29 DNS_R_DELEGATION */
 70
 71	"glue",				       /*%< 30 DNS_R_GLUE */
 72	"dname",			       /*%< 31 DNS_R_DNAME */
 73	"cname",			       /*%< 32 DNS_R_CNAME */
 74	"bad database",			       /*%< 33 DNS_R_BADDB */
 75	"zonecut",			       /*%< 34 DNS_R_ZONECUT */
 76
 77	"bad zone",			       /*%< 35 DNS_R_BADZONE */
 78	"more data",			       /*%< 36 DNS_R_MOREDATA */
 79	"up to date",			       /*%< 37 DNS_R_UPTODATE */
 80	"tsig verify failure",		       /*%< 38 DNS_R_TSIGVERIFYFAILURE */
 81	"tsig indicates error",		       /*%< 39 DNS_R_TSIGERRORSET */
 82
 83	"RRSIG failed to verify",	       /*%< 40 DNS_R_SIGINVALID */
 84	"RRSIG has expired",		       /*%< 41 DNS_R_SIGEXPIRED */
 85	"RRSIG validity period has not begun", /*%< 42 DNS_R_SIGFUTURE */
 86	"key is unauthorized to sign data",    /*%< 43 DNS_R_KEYUNAUTHORIZED */
 87	"invalid time",			       /*%< 44 DNS_R_INVALIDTIME */
 88
 89	"expected a TSIG or SIG(0)",	       /*%< 45 DNS_R_EXPECTEDTSIG */
 90	"did not expect a TSIG or SIG(0)",     /*%< 46 DNS_R_UNEXPECTEDTSIG */
 91	"TKEY is unacceptable",		       /*%< 47 DNS_R_INVALIDTKEY */
 92	"hint",				       /*%< 48 DNS_R_HINT */
 93	"drop",				       /*%< 49 DNS_R_DROP */
 94
 95	"zone not loaded",		       /*%< 50 DNS_R_NOTLOADED */
 96	"ncache nxdomain",		       /*%< 51 DNS_R_NCACHENXDOMAIN */
 97	"ncache nxrrset",		       /*%< 52 DNS_R_NCACHENXRRSET */
 98	"wait",				       /*%< 53 DNS_R_WAIT */
 99	"not verified yet",		       /*%< 54 DNS_R_NOTVERIFIEDYET */
100
101	"no identity",			       /*%< 55 DNS_R_NOIDENTITY */
102	"no journal",			       /*%< 56 DNS_R_NOJOURNAL */
103	"alias",			       /*%< 57 DNS_R_ALIAS */
104	"use TCP",			       /*%< 58 DNS_R_USETCP */
105	"no valid RRSIG",		       /*%< 59 DNS_R_NOVALIDSIG */
106
107	"no valid NSEC",		       /*%< 60 DNS_R_NOVALIDNSEC */
108	"insecurity proof failed",	       /*%< 61 DNS_R_NOTINSECURE */
109	"unknown service",		       /*%< 62 DNS_R_UNKNOWNSERVICE */
110	"recoverable error occurred",	       /*%< 63 DNS_R_RECOVERABLE */
111	"unknown opt attribute record",	       /*%< 64 DNS_R_UNKNOWNOPT */
112
113	"unexpected message id",	       /*%< 65 DNS_R_UNEXPECTEDID */
114	"seen include file",		       /*%< 66 DNS_R_SEENINCLUDE */
115	"not exact",		       	       /*%< 67 DNS_R_NOTEXACT */
116	"address blackholed",	       	       /*%< 68 DNS_R_BLACKHOLED */
117	"bad algorithm",		       /*%< 69 DNS_R_BADALG */
118
119	"invalid use of a meta type",	       /*%< 70 DNS_R_METATYPE */
120	"CNAME and other data",		       /*%< 71 DNS_R_CNAMEANDOTHER */
121	"multiple RRs of singleton type",      /*%< 72 DNS_R_SINGLETON */
122	"hint nxrrset",			       /*%< 73 DNS_R_HINTNXRRSET */
123	"no master file configured",	       /*%< 74 DNS_R_NOMASTERFILE */
124
125	"unknown protocol",		       /*%< 75 DNS_R_UNKNOWNPROTO */
126	"clocks are unsynchronized",	       /*%< 76 DNS_R_CLOCKSKEW */
127	"IXFR failed",			       /*%< 77 DNS_R_BADIXFR */
128	"not authoritative",		       /*%< 78 DNS_R_NOTAUTHORITATIVE */
129	"no valid KEY",		       	       /*%< 79 DNS_R_NOVALIDKEY */
130
131	"obsolete",			       /*%< 80 DNS_R_OBSOLETE */
132	"already frozen",		       /*%< 81 DNS_R_FROZEN */
133	"unknown flag",			       /*%< 82 DNS_R_UNKNOWNFLAG */
134	"expected a response",		       /*%< 83 DNS_R_EXPECTEDRESPONSE */
135	"no valid DS",			       /*%< 84 DNS_R_NOVALIDDS */
136
137	"NS is an address",		       /*%< 85 DNS_R_NSISADDRESS */
138	"received FORMERR",		       /*%< 86 DNS_R_REMOTEFORMERR */
139	"truncated TCP response",	       /*%< 87 DNS_R_TRUNCATEDTCP */
140	"lame server detected",		       /*%< 88 DNS_R_LAME */
141	"unexpected RCODE",		       /*%< 89 DNS_R_UNEXPECTEDRCODE */
142
143	"unexpected OPCODE",		       /*%< 90 DNS_R_UNEXPECTEDOPCODE */
144	"chase DS servers",		       /*%< 91 DNS_R_CHASEDSSERVERS */
145	"empty name",			       /*%< 92 DNS_R_EMPTYNAME */
146	"empty wild",			       /*%< 93 DNS_R_EMPTYWILD */
147	"bad bitmap",			       /*%< 94 DNS_R_BADBITMAP */
148
149	"from wildcard",		       /*%< 95 DNS_R_FROMWILDCARD */
150	"bad owner name (check-names)",	       /*%< 96 DNS_R_BADOWNERNAME */
151	"bad name (check-names)",	       /*%< 97 DNS_R_BADNAME */
152	"dynamic zone",			       /*%< 98 DNS_R_DYNAMIC */
153	"unknown command",		       /*%< 99 DNS_R_UNKNOWNCOMMAND */
154
155	"must-be-secure",		       /*%< 100 DNS_R_MUSTBESECURE */
156	"covering NSEC record returned",       /*%< 101 DNS_R_COVERINGNSEC */
157	"MX is an address",		       /*%< 102 DNS_R_MXISADDRESS */
158	"duplicate query",		       /*%< 103 DNS_R_DUPLICATE */
159	"invalid NSEC3 owner name (wildcard)", /*%< 104 DNS_R_INVALIDNSEC3 */
160
161	"not master",			       /*%< 105 DNS_R_NOTMASTER */
162	"broken trust chain",		       /*%< 106 DNS_R_BROKENCHAIN */
163	"expired",			       /*%< 106 DNS_R_EXPIRED */
164};
165
166static const char *rcode_text[DNS_R_NRCODERESULTS] = {
167	"NOERROR",				/*%< 0 DNS_R_NOEROR */
168	"FORMERR",				/*%< 1 DNS_R_FORMERR */
169	"SERVFAIL",				/*%< 2 DNS_R_SERVFAIL */
170	"NXDOMAIN",				/*%< 3 DNS_R_NXDOMAIN */
171	"NOTIMP",				/*%< 4 DNS_R_NOTIMP */
172
173	"REFUSED",				/*%< 5 DNS_R_REFUSED */
174	"YXDOMAIN",				/*%< 6 DNS_R_YXDOMAIN */
175	"YXRRSET",				/*%< 7 DNS_R_YXRRSET */
176	"NXRRSET",				/*%< 8 DNS_R_NXRRSET */
177	"NOTAUTH",				/*%< 9 DNS_R_NOTAUTH */
178
179	"NOTZONE",				/*%< 10 DNS_R_NOTZONE */
180	"<rcode 11>",				/*%< 11 has no macro */
181	"<rcode 12>",				/*%< 12 has no macro */
182	"<rcode 13>",				/*%< 13 has no macro */
183	"<rcode 14>",				/*%< 14 has no macro */
184
185	"<rcode 15>",				/*%< 15 has no macro */
186	"BADVERS",				/*%< 16 DNS_R_BADVERS */
187};
188
189#define DNS_RESULT_RESULTSET			2
190#define DNS_RESULT_RCODERESULTSET		3
191
192static isc_once_t		once = ISC_ONCE_INIT;
193
194static void
195initialize_action(void) {
196	isc_result_t result;
197
198	result = isc_result_register(ISC_RESULTCLASS_DNS, DNS_R_NRESULTS,
199				     text, dns_msgcat, DNS_RESULT_RESULTSET);
200	if (result == ISC_R_SUCCESS)
201		result = isc_result_register(ISC_RESULTCLASS_DNSRCODE,
202					     DNS_R_NRCODERESULTS,
203					     rcode_text, dns_msgcat,
204					     DNS_RESULT_RCODERESULTSET);
205	if (result != ISC_R_SUCCESS)
206		UNEXPECTED_ERROR(__FILE__, __LINE__,
207				 "isc_result_register() failed: %u", result);
208}
209
210static void
211initialize(void) {
212	dns_lib_initmsgcat();
213	RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
214}
215
216const char *
217dns_result_totext(isc_result_t result) {
218	initialize();
219
220	return (isc_result_totext(result));
221}
222
223void
224dns_result_register(void) {
225	initialize();
226}
227
228dns_rcode_t
229dns_result_torcode(isc_result_t result) {
230	dns_rcode_t rcode = dns_rcode_servfail;
231
232	if (DNS_RESULT_ISRCODE(result)) {
233		/*
234		 * Rcodes can't be bigger than 12 bits, which is why we
235		 * AND with 0xFFF instead of 0xFFFF.
236		 */
237		return ((dns_rcode_t)((result) & 0xFFF));
238	}
239	/*
240	 * Try to supply an appropriate rcode.
241	 */
242	switch (result) {
243	case ISC_R_SUCCESS:
244		rcode = dns_rcode_noerror;
245		break;
246	case ISC_R_BADBASE64:
247	case ISC_R_NOSPACE:
248	case ISC_R_RANGE:
249	case ISC_R_UNEXPECTEDEND:
250	case DNS_R_BADAAAA:
251	/* case DNS_R_BADBITSTRING: deprecated */
252	case DNS_R_BADCKSUM:
253	case DNS_R_BADCLASS:
254	case DNS_R_BADLABELTYPE:
255	case DNS_R_BADPOINTER:
256	case DNS_R_BADTTL:
257	case DNS_R_BADZONE:
258	/* case DNS_R_BITSTRINGTOOLONG: deprecated */
259	case DNS_R_EXTRADATA:
260	case DNS_R_LABELTOOLONG:
261	case DNS_R_NOREDATA:
262	case DNS_R_SYNTAX:
263	case DNS_R_TEXTTOOLONG:
264	case DNS_R_TOOMANYHOPS:
265	case DNS_R_TSIGERRORSET:
266	case DNS_R_UNKNOWN:
267		rcode = dns_rcode_formerr;
268		break;
269	case DNS_R_DISALLOWED:
270		rcode = dns_rcode_refused;
271		break;
272	case DNS_R_TSIGVERIFYFAILURE:
273	case DNS_R_CLOCKSKEW:
274		rcode = dns_rcode_notauth;
275		break;
276	default:
277		rcode = dns_rcode_servfail;
278	}
279
280	return (rcode);
281}