2 * Copyright (C) 2004, 2007, 2009 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2002 Internet Software Consortium.
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.
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.
18 /* $Id: soa_6.c,v 1.64 2009-12-04 21:09:34 marka Exp $ */
20 /* Reviewed: Thu Mar 16 15:18:32 PST 2000 by explorer */
22 #ifndef RDATA_GENERIC_SOA_6_C
23 #define RDATA_GENERIC_SOA_6_C
25 #define RRTYPE_SOA_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
27 static inline isc_result_t
28 fromtext_soa(ARGS_FROMTEXT) {
42 origin = (origin != NULL) ? origin : dns_rootname;
44 for (i = 0; i < 2; i++) {
45 RETERR(isc_lex_getmastertoken(lexer, &token,
49 dns_name_init(&name, NULL);
50 buffer_fromregion(&buffer, &token.value.as_region);
51 RETTOK(dns_name_fromtext(&name, &buffer, origin,
54 if ((options & DNS_RDATA_CHECKNAMES) != 0)
57 ok = dns_name_ishostname(&name, ISC_FALSE);
60 ok = dns_name_ismailbox(&name);
64 if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
65 RETTOK(DNS_R_BADNAME);
66 if (!ok && callbacks != NULL)
67 warn_badname(&name, lexer, callbacks);
70 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
72 RETERR(uint32_tobuffer(token.value.as_ulong, target));
74 for (i = 0; i < 4; i++) {
75 RETERR(isc_lex_getmastertoken(lexer, &token,
78 RETTOK(dns_counter_fromtext(&token.value.as_textregion, &n));
79 RETERR(uint32_tobuffer(n, target));
82 return (ISC_R_SUCCESS);
85 static const char *soa_fieldnames[5] = {
86 "serial", "refresh", "retry", "expire", "minimum"
89 static inline isc_result_t
90 totext_soa(ARGS_TOTEXT) {
97 isc_boolean_t multiline;
98 isc_boolean_t comment;
100 REQUIRE(rdata->type == 6);
101 REQUIRE(rdata->length != 0);
103 multiline = ISC_TF((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0);
105 comment = ISC_TF((tctx->flags & DNS_STYLEFLAG_COMMENT) != 0);
110 dns_name_init(&mname, NULL);
111 dns_name_init(&rname, NULL);
112 dns_name_init(&prefix, NULL);
114 dns_rdata_toregion(rdata, &dregion);
116 dns_name_fromregion(&mname, &dregion);
117 isc_region_consume(&dregion, name_length(&mname));
119 dns_name_fromregion(&rname, &dregion);
120 isc_region_consume(&dregion, name_length(&rname));
122 sub = name_prefix(&mname, tctx->origin, &prefix);
123 RETERR(dns_name_totext(&prefix, sub, target));
125 RETERR(str_totext(" ", target));
127 sub = name_prefix(&rname, tctx->origin, &prefix);
128 RETERR(dns_name_totext(&prefix, sub, target));
131 RETERR(str_totext(" (" , target));
132 RETERR(str_totext(tctx->linebreak, target));
134 for (i = 0; i < 5; i++) {
135 char buf[sizeof("0123456789 ; ")];
137 num = uint32_fromregion(&dregion);
138 isc_region_consume(&dregion, 4);
139 sprintf(buf, comment ? "%-10lu ; " : "%lu", num);
140 RETERR(str_totext(buf, target));
142 RETERR(str_totext(soa_fieldnames[i], target));
143 /* Print times in week/day/hour/minute/second form */
145 RETERR(str_totext(" (", target));
146 RETERR(dns_ttl_totext(num, ISC_TRUE, target));
147 RETERR(str_totext(")", target));
149 RETERR(str_totext(tctx->linebreak, target));
151 RETERR(str_totext(tctx->linebreak, target));
156 RETERR(str_totext(")", target));
158 return (ISC_R_SUCCESS);
161 static inline isc_result_t
162 fromwire_soa(ARGS_FROMWIRE) {
165 isc_region_t sregion;
166 isc_region_t tregion;
173 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
175 dns_name_init(&mname, NULL);
176 dns_name_init(&rname, NULL);
178 RETERR(dns_name_fromwire(&mname, source, dctx, options, target));
179 RETERR(dns_name_fromwire(&rname, source, dctx, options, target));
181 isc_buffer_activeregion(source, &sregion);
182 isc_buffer_availableregion(target, &tregion);
184 if (sregion.length < 20)
185 return (ISC_R_UNEXPECTEDEND);
186 if (tregion.length < 20)
187 return (ISC_R_NOSPACE);
189 memcpy(tregion.base, sregion.base, 20);
190 isc_buffer_forward(source, 20);
191 isc_buffer_add(target, 20);
193 return (ISC_R_SUCCESS);
196 static inline isc_result_t
197 towire_soa(ARGS_TOWIRE) {
198 isc_region_t sregion;
199 isc_region_t tregion;
202 dns_offsets_t moffsets;
203 dns_offsets_t roffsets;
205 REQUIRE(rdata->type == 6);
206 REQUIRE(rdata->length != 0);
208 dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
210 dns_name_init(&mname, moffsets);
211 dns_name_init(&rname, roffsets);
213 dns_rdata_toregion(rdata, &sregion);
215 dns_name_fromregion(&mname, &sregion);
216 isc_region_consume(&sregion, name_length(&mname));
217 RETERR(dns_name_towire(&mname, cctx, target));
219 dns_name_fromregion(&rname, &sregion);
220 isc_region_consume(&sregion, name_length(&rname));
221 RETERR(dns_name_towire(&rname, cctx, target));
223 isc_buffer_availableregion(target, &tregion);
224 if (tregion.length < 20)
225 return (ISC_R_NOSPACE);
227 memcpy(tregion.base, sregion.base, 20);
228 isc_buffer_add(target, 20);
229 return (ISC_R_SUCCESS);
233 compare_soa(ARGS_COMPARE) {
234 isc_region_t region1;
235 isc_region_t region2;
240 REQUIRE(rdata1->type == rdata2->type);
241 REQUIRE(rdata1->rdclass == rdata2->rdclass);
242 REQUIRE(rdata1->type == 6);
243 REQUIRE(rdata1->length != 0);
244 REQUIRE(rdata2->length != 0);
246 dns_name_init(&name1, NULL);
247 dns_name_init(&name2, NULL);
249 dns_rdata_toregion(rdata1, ®ion1);
250 dns_rdata_toregion(rdata2, ®ion2);
252 dns_name_fromregion(&name1, ®ion1);
253 dns_name_fromregion(&name2, ®ion2);
255 order = dns_name_rdatacompare(&name1, &name2);
259 isc_region_consume(®ion1, name_length(&name1));
260 isc_region_consume(®ion2, name_length(&name2));
262 dns_name_init(&name1, NULL);
263 dns_name_init(&name2, NULL);
265 dns_name_fromregion(&name1, ®ion1);
266 dns_name_fromregion(&name2, ®ion2);
268 order = dns_name_rdatacompare(&name1, &name2);
272 isc_region_consume(®ion1, name_length(&name1));
273 isc_region_consume(®ion2, name_length(&name2));
275 return (isc_region_compare(®ion1, ®ion2));
278 static inline isc_result_t
279 fromstruct_soa(ARGS_FROMSTRUCT) {
280 dns_rdata_soa_t *soa = source;
284 REQUIRE(source != NULL);
285 REQUIRE(soa->common.rdtype == type);
286 REQUIRE(soa->common.rdclass == rdclass);
291 dns_name_toregion(&soa->origin, ®ion);
292 RETERR(isc_buffer_copyregion(target, ®ion));
293 dns_name_toregion(&soa->contact, ®ion);
294 RETERR(isc_buffer_copyregion(target, ®ion));
295 RETERR(uint32_tobuffer(soa->serial, target));
296 RETERR(uint32_tobuffer(soa->refresh, target));
297 RETERR(uint32_tobuffer(soa->retry, target));
298 RETERR(uint32_tobuffer(soa->expire, target));
299 return (uint32_tobuffer(soa->minimum, target));
302 static inline isc_result_t
303 tostruct_soa(ARGS_TOSTRUCT) {
305 dns_rdata_soa_t *soa = target;
309 REQUIRE(rdata->type == 6);
310 REQUIRE(target != NULL);
311 REQUIRE(rdata->length != 0);
313 soa->common.rdclass = rdata->rdclass;
314 soa->common.rdtype = rdata->type;
315 ISC_LINK_INIT(&soa->common, link);
318 dns_rdata_toregion(rdata, ®ion);
320 dns_name_init(&name, NULL);
321 dns_name_fromregion(&name, ®ion);
322 isc_region_consume(®ion, name_length(&name));
323 dns_name_init(&soa->origin, NULL);
324 RETERR(name_duporclone(&name, mctx, &soa->origin));
326 dns_name_fromregion(&name, ®ion);
327 isc_region_consume(®ion, name_length(&name));
328 dns_name_init(&soa->contact, NULL);
329 result = name_duporclone(&name, mctx, &soa->contact);
330 if (result != ISC_R_SUCCESS)
333 soa->serial = uint32_fromregion(®ion);
334 isc_region_consume(®ion, 4);
336 soa->refresh = uint32_fromregion(®ion);
337 isc_region_consume(®ion, 4);
339 soa->retry = uint32_fromregion(®ion);
340 isc_region_consume(®ion, 4);
342 soa->expire = uint32_fromregion(®ion);
343 isc_region_consume(®ion, 4);
345 soa->minimum = uint32_fromregion(®ion);
348 return (ISC_R_SUCCESS);
352 dns_name_free(&soa->origin, mctx);
353 return (ISC_R_NOMEMORY);
357 freestruct_soa(ARGS_FREESTRUCT) {
358 dns_rdata_soa_t *soa = source;
360 REQUIRE(source != NULL);
361 REQUIRE(soa->common.rdtype == 6);
363 if (soa->mctx == NULL)
366 dns_name_free(&soa->origin, soa->mctx);
367 dns_name_free(&soa->contact, soa->mctx);
371 static inline isc_result_t
372 additionaldata_soa(ARGS_ADDLDATA) {
377 REQUIRE(rdata->type == 6);
379 return (ISC_R_SUCCESS);
382 static inline isc_result_t
383 digest_soa(ARGS_DIGEST) {
387 REQUIRE(rdata->type == 6);
389 dns_rdata_toregion(rdata, &r);
391 dns_name_init(&name, NULL);
392 dns_name_fromregion(&name, &r);
393 RETERR(dns_name_digest(&name, digest, arg));
394 isc_region_consume(&r, name_length(&name));
396 dns_name_init(&name, NULL);
397 dns_name_fromregion(&name, &r);
398 RETERR(dns_name_digest(&name, digest, arg));
399 isc_region_consume(&r, name_length(&name));
401 return ((digest)(arg, &r));
404 static inline isc_boolean_t
405 checkowner_soa(ARGS_CHECKOWNER) {
417 static inline isc_boolean_t
418 checknames_soa(ARGS_CHECKNAMES) {
422 REQUIRE(rdata->type == 6);
426 dns_rdata_toregion(rdata, ®ion);
427 dns_name_init(&name, NULL);
428 dns_name_fromregion(&name, ®ion);
429 if (!dns_name_ishostname(&name, ISC_FALSE)) {
431 dns_name_clone(&name, bad);
434 isc_region_consume(®ion, name_length(&name));
435 dns_name_fromregion(&name, ®ion);
436 if (!dns_name_ismailbox(&name)) {
438 dns_name_clone(&name, bad);
445 casecompare_soa(ARGS_COMPARE) {
446 return (compare_soa(rdata1, rdata2));
449 #endif /* RDATA_GENERIC_SOA_6_C */